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* [RFC: 2.6 patch] powerpc: remove the unused HTDMSOUND driver
@ 2007-03-25 14:58 Adrian Bunk
  2007-03-26 23:52 ` Marcelo Tosatti
  0 siblings, 1 reply; 4+ messages in thread
From: Adrian Bunk @ 2007-03-25 14:58 UTC (permalink / raw)
  To: Andrew Morton
  Cc: marcelo, linuxppc-embedded, paulus, linuxppc-dev, linux-kernel

Recently, someone fixed a syntax error in the HTDMSOUND driver 
introduced 4 years ago.

Unfortunately not by trying to compile this driver for his hardware but 
by code inspection - which seems to be a strong indication that there 
are no users left for this OSS sound driver.

This patch therefore removes it.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

---

This patch was already sent on:
- 7 Mar 2007

 arch/ppc/8xx_io/Kconfig         |    4 
 arch/ppc/8xx_io/Makefile        |    1 
 arch/ppc/8xx_io/cs4218.h        |  166 -
 arch/ppc/8xx_io/cs4218_tdm.c    | 2833 --------------------------------
 arch/ppc/platforms/rpxclassic.h |    4 
 arch/ppc/platforms/rpxhiox.h    |   41 
 arch/ppc/platforms/rpxlite.h    |    4 
 arch/ppc/syslib/m8xx_setup.c    |    2 
 8 files changed, 1 insertion(+), 3054 deletions(-)

--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig.old	2007-03-06 06:47:04.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig	2007-03-06 06:47:16.000000000 +0100
@@ -74,10 +74,6 @@
 	  Allocate large buffers for MPC8xx Ethernet. Increases throughput
 	  and decreases the likelihood of dropped packets, but costs memory.
 
-config HTDMSOUND
-	bool "Embedded Planet HIOX Audio"
-	depends on SOUND=y
-
 # This doesn't really belong here, but it is convenient to ask
 # 8xx specific questions.
 comment "Generic MPC8xx Options"
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile.old	2007-03-06 06:47:23.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile	2007-03-06 06:47:30.000000000 +0100
@@ -7,4 +7,3 @@
 obj-$(CONFIG_FEC_ENET)	+= fec.o
 obj-$(CONFIG_SCC_ENET)	+= enet.o
 obj-$(CONFIG_UCODE_PATCH) += micropatch.o
-obj-$(CONFIG_HTDMSOUND) += cs4218_tdm.o
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h.old	2007-03-06 06:49:05.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h	2007-03-06 06:49:41.000000000 +0100
@@ -57,10 +57,6 @@
 #define BCSR1_PCVCTL6          ((uint)0x00020000)
 #define BCSR1_PCVCTL7          ((uint)0x00010000)
 
-#if defined(CONFIG_HTDMSOUND)
-#include <platforms/rpxhiox.h>
-#endif
-
 /* define IO_BASE for pcmcia */
 #define _IO_BASE 0x80000000
 #define _IO_BASE_SIZE 0x1000
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h.old	2007-03-06 06:49:51.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h	2007-03-06 06:49:56.000000000 +0100
@@ -69,10 +69,6 @@
 #define BCSR2_QSPACESEL		((uint)0x00004000)
 #define BCSR2_FETHLEDMODE	((uint)0x00000800)	/* CLLF */
 
-#if defined(CONFIG_HTDMSOUND)
-#include <platforms/rpxhiox.h>
-#endif
-
 /* define IO_BASE for pcmcia, CLLF only */
 #if !defined(CONFIG_PCI)
 #define _IO_BASE 0x80000000
--- linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c.old	2007-03-06 06:50:43.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c	2007-03-06 06:50:59.000000000 +0100
@@ -413,7 +413,7 @@
 	io_block_mapping(_IO_BASE,_IO_BASE,_IO_BASE_SIZE, _PAGE_IO);
 #endif
 #endif
-#if defined(CONFIG_HTDMSOUND) || defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
+#if defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
 	io_block_mapping(HIOX_CSR_ADDR, HIOX_CSR_ADDR, HIOX_CSR_SIZE, _PAGE_IO);
 #endif
 #ifdef CONFIG_FADS
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxhiox.h	2007-02-04 19:44:54.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,41 +0,0 @@
-/*
- * The Embedded Planet HIOX expansion card definitions.
- * There were a few different versions of these cards, but only
- * the one that escaped real production is defined here.
- *
- * Copyright (c) 2000 Dan Malek (dmalek@jlc.net)
- */
-#ifndef __MACH_RPX_HIOX_DEFS
-#define __MACH_RPX_HIOX_DEFS
-
-#define HIOX_CSR_ADDR		((uint)0xfac00000)
-#define HIOX_CSR_SIZE		((uint)(4 * 1024))
-#define HIOX_CSR0_ADDR		HIOX_CSR_ADDR
-#define HIOX_CSR4_ADDR		((uint)0xfac00004)
-
-#define HIOX_CSR0_DEFAULT	((uint)0x380f3c00)
-#define HIOX_CSR0_ENSCC2	((uint)0x80000000)
-#define HIOX_CSR0_ENSMC2	((uint)0x04000000)
-#define HIOX_CSR0_ENVDOCLK	((uint)0x02000000)
-#define HIOX_CSR0_VDORST_HL	((uint)0x01000000)
-#define HIOX_CSR0_RS232SEL	((uint)0x0000c000)
-#define HIOX_CSR0_SCC3SEL	((uint)0x0000c000)
-#define HIOX_CSR0_SMC1SEL	((uint)0x00008000)
-#define HIOX_CSR0_SCC1SEL	((uint)0x00004000)
-#define HIOX_CSR0_ENTOUCH	((uint)0x00000080)
-#define HIOX_CSR0_PDOWN100	((uint)0x00000060)
-#define HIOX_CSR0_PDOWN10	((uint)0x00000040)
-#define HIOX_CSR0_PDOWN1	((uint)0x00000020)
-#define HIOX_CSR0_TSELSPI	((uint)0x00000010)
-#define HIOX_CSR0_TIRQSTAT	((uint)0x00000008)
-#define HIOX_CSR4_DEFAULT	((uint)0x00000000)
-#define HIOX_CSR4_ENTIRQ2	((uint)0x20000000)
-#define HIOX_CSR4_ENTIRQ3	((uint)0x10000000)
-#define HIOX_CSR4_ENAUDIO	((uint)0x00000080)
-#define HIOX_CSR4_RSTAUDIO	((uint)0x00000040)	/* 0 == reset */
-#define HIOX_CSR4_AUDCLKHI	((uint)0x00000020)
-#define HIOX_CSR4_AUDSPISEL	((uint)0x00000010)
-#define HIOX_CSR4_AUDIRQSTAT	((uint)0x00000008)
-#define HIOX_CSR4_AUDCLKSEL	((uint)0x00000007)
-
-#endif
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218.h	2007-02-04 19:44:54.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,166 +0,0 @@
-#ifndef _cs4218_h_
-/*
- *  Hacked version of linux/drivers/sound/dmasound/dmasound.h
- *
- *
- *  Minor numbers for the sound driver.
- *
- *  Unfortunately Creative called the codec chip of SB as a DSP. For this
- *  reason the /dev/dsp is reserved for digitized audio use. There is a
- *  device for true DSP processors but it will be called something else.
- *  In v3.0 it's /dev/sndproc but this could be a temporary solution.
- */
-#define _cs4218_h_
-
-#include <linux/types.h>
-
-#define SND_NDEVS	256	/* Number of supported devices */
-#define SND_DEV_CTL	0	/* Control port /dev/mixer */
-#define SND_DEV_SEQ	1	/* Sequencer output /dev/sequencer (FM
-				   synthesizer and MIDI output) */
-#define SND_DEV_MIDIN	2	/* Raw midi access */
-#define SND_DEV_DSP	3	/* Digitized voice /dev/dsp */
-#define SND_DEV_AUDIO	4	/* Sparc compatible /dev/audio */
-#define SND_DEV_DSP16	5	/* Like /dev/dsp but 16 bits/sample */
-#define SND_DEV_STATUS	6	/* /dev/sndstat */
-/* #7 not in use now. Was in 2.4. Free for use after v3.0. */
-#define SND_DEV_SEQ2	8	/* /dev/sequencer, level 2 interface */
-#define SND_DEV_SNDPROC 9	/* /dev/sndproc for programmable devices */
-#define SND_DEV_PSS	SND_DEV_SNDPROC
-
-/* switch on various prinks */
-#define DEBUG_DMASOUND 1
-
-#define MAX_AUDIO_DEV	5
-#define MAX_MIXER_DEV	4
-#define MAX_SYNTH_DEV	3
-#define MAX_MIDI_DEV	6
-#define MAX_TIMER_DEV	3
-
-#define MAX_CATCH_RADIUS	10
-
-#define le2be16(x)	(((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
-#define le2be16dbl(x)	(((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
-
-#define IOCTL_IN(arg, ret) \
-	do { int error = get_user(ret, (int *)(arg)); \
-		if (error) return error; \
-	} while (0)
-#define IOCTL_OUT(arg, ret)	ioctl_return((int *)(arg), ret)
-
-static inline int ioctl_return(int *addr, int value)
-{
-	return value < 0 ? value : put_user(value, addr);
-}
-
-#define HAS_RECORD
-
-    /*
-     *  Initialization
-     */
-
-/* description of the set-up applies to either hard or soft settings */
-
-typedef struct {
-    int format;		/* AFMT_* */
-    int stereo;		/* 0 = mono, 1 = stereo */
-    int size;		/* 8/16 bit*/
-    int speed;		/* speed */
-} SETTINGS;
-
-    /*
-     *  Machine definitions
-     */
-
-typedef struct {
-    const char *name;
-    const char *name2;
-    void (*open)(void);
-    void (*release)(void);
-    void *(*dma_alloc)(unsigned int, gfp_t);
-    void (*dma_free)(void *, unsigned int);
-    int (*irqinit)(void);
-#ifdef MODULE
-    void (*irqcleanup)(void);
-#endif
-    void (*init)(void);
-    void (*silence)(void);
-    int (*setFormat)(int);
-    int (*setVolume)(int);
-    int (*setBass)(int);
-    int (*setTreble)(int);
-    int (*setGain)(int);
-    void (*play)(void);
-    void (*record)(void);		/* optional */
-    void (*mixer_init)(void);		/* optional */
-    int (*mixer_ioctl)(u_int, u_long);	/* optional */
-    int (*write_sq_setup)(void);	/* optional */
-    int (*read_sq_setup)(void);		/* optional */
-    int (*sq_open)(mode_t);		/* optional */
-    int (*state_info)(char *, size_t);	/* optional */
-    void (*abort_read)(void);		/* optional */
-    int min_dsp_speed;
-    int max_dsp_speed;
-    int version ;
-    int hardware_afmts ;		/* OSS says we only return h'ware info */
-					/* when queried via SNDCTL_DSP_GETFMTS */
-    int capabilities ;		/* low-level reply to SNDCTL_DSP_GETCAPS */
-    SETTINGS default_hard ;	/* open() or init() should set something valid */
-    SETTINGS default_soft ;	/* you can make it look like old OSS, if you want to */
-} MACHINE;
-
-    /*
-     *  Low level stuff
-     */
-
-typedef struct {
-    ssize_t (*ct_ulaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_alaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_s8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_u8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_s16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_u16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_s16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_u16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-} TRANS;
-
-
-    /*
-     * Sound queue stuff, the heart of the driver
-     */
-
-struct sound_queue {
-    /* buffers allocated for this queue */
-    int numBufs;		/* real limits on what the user can have */
-    int bufSize;		/* in bytes */
-    char **buffers;
-
-    /* current parameters */
-    int locked ;		/* params cannot be modified when != 0 */
-    int user_frags ;		/* user requests this many */
-    int user_frag_size ;	/* of this size */
-    int max_count;		/* actual # fragments <= numBufs */
-    int block_size;		/* internal block size in bytes */
-    int max_active;		/* in-use fragments <= max_count */
-
-    /* it shouldn't be necessary to declare any of these volatile */
-    int front, rear, count;
-    int rear_size;
-    /*
-     *	The use of the playing field depends on the hardware
-     *
-     *	Atari, PMac: The number of frames that are loaded/playing
-     *
-     *	Amiga: Bit 0 is set: a frame is loaded
-     *	       Bit 1 is set: a frame is playing
-     */
-    int active;
-    wait_queue_head_t action_queue, open_queue, sync_queue;
-    int open_mode;
-    int busy, syncing, xruns, died;
-};
-
-#define SLEEP(queue)		interruptible_sleep_on_timeout(&queue, HZ)
-#define WAKE_UP(queue)		(wake_up_interruptible(&queue))
-
-#endif /* _cs4218_h_ */
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218_tdm.c	2007-03-02 20:14:59.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,2833 +0,0 @@
-
-/* This is a modified version of linux/drivers/sound/dmasound.c to
- * support the CS4218 codec on the 8xx TDM port.  Thanks to everyone
- * that contributed to the dmasound software (which includes me :-).
- *
- * The CS4218 is configured in Mode 4, sub-mode 0.  This provides
- * left/right data only on the TDM port, as a 32-bit word, per frame
- * pulse.  The control of the CS4218 is provided by some other means,
- * like the SPI port.
- * Dan Malek (dmalek@jlc.net)
- */
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/major.h>
-#include <linux/fcntl.h>
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/sound.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-/* Should probably do something different with this path name.....
- * Actually, I should just stop using it...
- */
-#include "cs4218.h"
-#include <linux/soundcard.h>
-
-#include <asm/mpc8xx.h>
-#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
-
-#define DMASND_CS4218		5
-
-#define MAX_CATCH_RADIUS	10
-#define MIN_BUFFERS		4
-#define MIN_BUFSIZE 		4
-#define MAX_BUFSIZE		128
-
-#define HAS_8BIT_TABLES
-
-static int sq_unit = -1;
-static int mixer_unit = -1;
-static int state_unit = -1;
-static int irq_installed = 0;
-static char **sound_buffers = NULL;
-static char **sound_read_buffers = NULL;
-
-static DEFINE_SPINLOCK(cs4218_lock);
-
-/* Local copies of things we put in the control register.  Output
- * volume, like most codecs is really attenuation.
- */
-static int cs4218_rate_index;
-
-/*
- * Stuff for outputting a beep.  The values range from -327 to +327
- * so we can multiply by an amplitude in the range 0..100 to get a
- * signed short value to put in the output buffer.
- */
-static short beep_wform[256] = {
-	0,	40,	79,	117,	153,	187,	218,	245,
-	269,	288,	304,	316,	323,	327,	327,	324,
-	318,	310,	299,	288,	275,	262,	249,	236,
-	224,	213,	204,	196,	190,	186,	183,	182,
-	182,	183,	186,	189,	192,	196,	200,	203,
-	206,	208,	209,	209,	209,	207,	204,	201,
-	197,	193,	188,	183,	179,	174,	170,	166,
-	163,	161,	160,	159,	159,	160,	161,	162,
-	164,	166,	168,	169,	171,	171,	171,	170,
-	169,	167,	163,	159,	155,	150,	144,	139,
-	133,	128,	122,	117,	113,	110,	107,	105,
-	103,	103,	103,	103,	104,	104,	105,	105,
-	105,	103,	101,	97,	92,	86,	78,	68,
-	58,	45,	32,	18,	3,	-11,	-26,	-41,
-	-55,	-68,	-79,	-88,	-95,	-100,	-102,	-102,
-	-99,	-93,	-85,	-75,	-62,	-48,	-33,	-16,
-	0,	16,	33,	48,	62,	75,	85,	93,
-	99,	102,	102,	100,	95,	88,	79,	68,
-	55,	41,	26,	11,	-3,	-18,	-32,	-45,
-	-58,	-68,	-78,	-86,	-92,	-97,	-101,	-103,
-	-105,	-105,	-105,	-104,	-104,	-103,	-103,	-103,
-	-103,	-105,	-107,	-110,	-113,	-117,	-122,	-128,
-	-133,	-139,	-144,	-150,	-155,	-159,	-163,	-167,
-	-169,	-170,	-171,	-171,	-171,	-169,	-168,	-166,
-	-164,	-162,	-161,	-160,	-159,	-159,	-160,	-161,
-	-163,	-166,	-170,	-174,	-179,	-183,	-188,	-193,
-	-197,	-201,	-204,	-207,	-209,	-209,	-209,	-208,
-	-206,	-203,	-200,	-196,	-192,	-189,	-186,	-183,
-	-182,	-182,	-183,	-186,	-190,	-196,	-204,	-213,
-	-224,	-236,	-249,	-262,	-275,	-288,	-299,	-310,
-	-318,	-324,	-327,	-327,	-323,	-316,	-304,	-288,
-	-269,	-245,	-218,	-187,	-153,	-117,	-79,	-40,
-};
-
-#define BEEP_SPEED	5	/* 22050 Hz sample rate */
-#define BEEP_BUFLEN	512
-#define BEEP_VOLUME	15	/* 0 - 100 */
-
-static int beep_volume = BEEP_VOLUME;
-static int beep_playing = 0;
-static int beep_state = 0;
-static short *beep_buf;
-static void (*orig_mksound)(unsigned int, unsigned int);
-
-/* This is found someplace else......I guess in the keyboard driver
- * we don't include.
- */
-static void (*kd_mksound)(unsigned int, unsigned int);
-
-static int catchRadius = 0;
-static int numBufs = 4, bufSize = 32;
-static int numReadBufs = 4, readbufSize = 32;
-
-
-/* TDM/Serial transmit and receive buffer descriptors.
-*/
-static volatile cbd_t	*rx_base, *rx_cur, *tx_base, *tx_cur;
-
-module_param(catchRadius, int, 0);
-module_param(numBufs, int, 0);
-module_param(bufSize, int, 0);
-module_param(numreadBufs, int, 0);
-module_param(readbufSize, int, 0);
-
-#define arraysize(x)	(sizeof(x)/sizeof(*(x)))
-#define le2be16(x)	(((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
-#define le2be16dbl(x)	(((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
-
-#define IOCTL_IN(arg, ret) \
-	do { int error = get_user(ret, (int *)(arg)); \
-		if (error) return error; \
-	} while (0)
-#define IOCTL_OUT(arg, ret)	ioctl_return((int *)(arg), ret)
-
-/* CS4218 serial port control in mode 4.
-*/
-#define CS_INTMASK	((uint)0x40000000)
-#define CS_DO1		((uint)0x20000000)
-#define CS_LATTEN	((uint)0x1f000000)
-#define CS_RATTEN	((uint)0x00f80000)
-#define CS_MUTE		((uint)0x00040000)
-#define CS_ISL		((uint)0x00020000)
-#define CS_ISR		((uint)0x00010000)
-#define CS_LGAIN	((uint)0x0000f000)
-#define CS_RGAIN	((uint)0x00000f00)
-
-#define CS_LATTEN_SET(X)	(((X) & 0x1f) << 24)
-#define CS_RATTEN_SET(X)	(((X) & 0x1f) << 19)
-#define CS_LGAIN_SET(X)		(((X) & 0x0f) << 12)
-#define CS_RGAIN_SET(X)		(((X) & 0x0f) << 8)
-
-#define CS_LATTEN_GET(X)	(((X) >> 24) & 0x1f)
-#define CS_RATTEN_GET(X)	(((X) >> 19) & 0x1f)
-#define CS_LGAIN_GET(X)		(((X) >> 12) & 0x0f)
-#define CS_RGAIN_GET(X)		(((X) >> 8) & 0x0f)
-
-/* The control register is effectively write only.  We have to keep a copy
- * of what we write.
- */
-static	uint	cs4218_control;
-
-/* A place to store expanding information.
-*/
-static int	expand_bal;
-static int	expand_data;
-
-/* Since I can't make the microcode patch work for the SPI, I just
- * clock the bits using software.
- */
-static	void	sw_spi_init(void);
-static	void	sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt);
-static	uint	cs4218_ctl_write(uint ctlreg);
-
-/*** Some low level helpers **************************************************/
-
-/* 16 bit mu-law */
-
-static short ulaw2dma16[] = {
-	-32124,	-31100,	-30076,	-29052,	-28028,	-27004,	-25980,	-24956,
-	-23932,	-22908,	-21884,	-20860,	-19836,	-18812,	-17788,	-16764,
-	-15996,	-15484,	-14972,	-14460,	-13948,	-13436,	-12924,	-12412,
-	-11900,	-11388,	-10876,	-10364,	-9852,	-9340,	-8828,	-8316,
-	-7932,	-7676,	-7420,	-7164,	-6908,	-6652,	-6396,	-6140,
-	-5884,	-5628,	-5372,	-5116,	-4860,	-4604,	-4348,	-4092,
-	-3900,	-3772,	-3644,	-3516,	-3388,	-3260,	-3132,	-3004,
-	-2876,	-2748,	-2620,	-2492,	-2364,	-2236,	-2108,	-1980,
-	-1884,	-1820,	-1756,	-1692,	-1628,	-1564,	-1500,	-1436,
-	-1372,	-1308,	-1244,	-1180,	-1116,	-1052,	-988,	-924,
-	-876,	-844,	-812,	-780,	-748,	-716,	-684,	-652,
-	-620,	-588,	-556,	-524,	-492,	-460,	-428,	-396,
-	-372,	-356,	-340,	-324,	-308,	-292,	-276,	-260,
-	-244,	-228,	-212,	-196,	-180,	-164,	-148,	-132,
-	-120,	-112,	-104,	-96,	-88,	-80,	-72,	-64,
-	-56,	-48,	-40,	-32,	-24,	-16,	-8,	0,
-	32124,	31100,	30076,	29052,	28028,	27004,	25980,	24956,
-	23932,	22908,	21884,	20860,	19836,	18812,	17788,	16764,
-	15996,	15484,	14972,	14460,	13948,	13436,	12924,	12412,
-	11900,	11388,	10876,	10364,	9852,	9340,	8828,	8316,
-	7932,	7676,	7420,	7164,	6908,	6652,	6396,	6140,
-	5884,	5628,	5372,	5116,	4860,	4604,	4348,	4092,
-	3900,	3772,	3644,	3516,	3388,	3260,	3132,	3004,
-	2876,	2748,	2620,	2492,	2364,	2236,	2108,	1980,
-	1884,	1820,	1756,	1692,	1628,	1564,	1500,	1436,
-	1372,	1308,	1244,	1180,	1116,	1052,	988,	924,
-	876,	844,	812,	780,	748,	716,	684,	652,
-	620,	588,	556,	524,	492,	460,	428,	396,
-	372,	356,	340,	324,	308,	292,	276,	260,
-	244,	228,	212,	196,	180,	164,	148,	132,
-	120,	112,	104,	96,	88,	80,	72,	64,
-	56,	48,	40,	32,	24,	16,	8,	0,
-};
-
-/* 16 bit A-law */
-
-static short alaw2dma16[] = {
-	-5504,	-5248,	-6016,	-5760,	-4480,	-4224,	-4992,	-4736,
-	-7552,	-7296,	-8064,	-7808,	-6528,	-6272,	-7040,	-6784,
-	-2752,	-2624,	-3008,	-2880,	-2240,	-2112,	-2496,	-2368,
-	-3776,	-3648,	-4032,	-3904,	-3264,	-3136,	-3520,	-3392,
-	-22016,	-20992,	-24064,	-23040,	-17920,	-16896,	-19968,	-18944,
-	-30208,	-29184,	-32256,	-31232,	-26112,	-25088,	-28160,	-27136,
-	-11008,	-10496,	-12032,	-11520,	-8960,	-8448,	-9984,	-9472,
-	-15104,	-14592,	-16128,	-15616,	-13056,	-12544,	-14080,	-13568,
-	-344,	-328,	-376,	-360,	-280,	-264,	-312,	-296,
-	-472,	-456,	-504,	-488,	-408,	-392,	-440,	-424,
-	-88,	-72,	-120,	-104,	-24,	-8,	-56,	-40,
-	-216,	-200,	-248,	-232,	-152,	-136,	-184,	-168,
-	-1376,	-1312,	-1504,	-1440,	-1120,	-1056,	-1248,	-1184,
-	-1888,	-1824,	-2016,	-1952,	-1632,	-1568,	-1760,	-1696,
-	-688,	-656,	-752,	-720,	-560,	-528,	-624,	-592,
-	-944,	-912,	-1008,	-976,	-816,	-784,	-880,	-848,
-	5504,	5248,	6016,	5760,	4480,	4224,	4992,	4736,
-	7552,	7296,	8064,	7808,	6528,	6272,	7040,	6784,
-	2752,	2624,	3008,	2880,	2240,	2112,	2496,	2368,
-	3776,	3648,	4032,	3904,	3264,	3136,	3520,	3392,
-	22016,	20992,	24064,	23040,	17920,	16896,	19968,	18944,
-	30208,	29184,	32256,	31232,	26112,	25088,	28160,	27136,
-	11008,	10496,	12032,	11520,	8960,	8448,	9984,	9472,
-	15104,	14592,	16128,	15616,	13056,	12544,	14080,	13568,
-	344,	328,	376,	360,	280,	264,	312,	296,
-	472,	456,	504,	488,	408,	392,	440,	424,
-	88,	72,	120,	104,	24,	8,	56,	40,
-	216,	200,	248,	232,	152,	136,	184,	168,
-	1376,	1312,	1504,	1440,	1120,	1056,	1248,	1184,
-	1888,	1824,	2016,	1952,	1632,	1568,	1760,	1696,
-	688,	656,	752,	720,	560,	528,	624,	592,
-	944,	912,	1008,	976,	816,	784,	880,	848,
-};
-
-
-/*** Translations ************************************************************/
-
-
-static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft);
-static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft);
-static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft);
-static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft);
-static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft);
-static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-
-
-/*** Low level stuff *********************************************************/
-
-struct cs_sound_settings {
-	MACHINE mach;		/* machine dependent things */
-	SETTINGS hard;		/* hardware settings */
-	SETTINGS soft;		/* software settings */
-	SETTINGS dsp;		/* /dev/dsp default settings */
-	TRANS *trans_write;	/* supported translations for playback */
-	TRANS *trans_read;	/* supported translations for record */
-	int volume_left;	/* volume (range is machine dependent) */
-	int volume_right;
-	int bass;		/* tone (range is machine dependent) */
-	int treble;
-	int gain;
-	int minDev;		/* minor device number currently open */
-};
-
-static struct cs_sound_settings sound;
-
-static void *CS_Alloc(unsigned int size, gfp_t flags);
-static void CS_Free(void *ptr, unsigned int size);
-static int CS_IrqInit(void);
-#ifdef MODULE
-static void CS_IrqCleanup(void);
-#endif /* MODULE */
-static void CS_Silence(void);
-static void CS_Init(void);
-static void CS_Play(void);
-static void CS_Record(void);
-static int CS_SetFormat(int format);
-static int CS_SetVolume(int volume);
-static void cs4218_tdm_tx_intr(void *devid);
-static void cs4218_tdm_rx_intr(void *devid);
-static void cs4218_intr(void *devid);
-static int cs_get_volume(uint reg);
-static int cs_volume_setter(int volume, int mute);
-static int cs_get_gain(uint reg);
-static int cs_set_gain(int gain);
-static void cs_mksound(unsigned int hz, unsigned int ticks);
-static void cs_nosound(unsigned long xx);
-
-/*** Mid level stuff *********************************************************/
-
-
-static void sound_silence(void);
-static void sound_init(void);
-static int sound_set_format(int format);
-static int sound_set_speed(int speed);
-static int sound_set_stereo(int stereo);
-static int sound_set_volume(int volume);
-
-static ssize_t sound_copy_translate(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft);
-static ssize_t sound_copy_translate_read(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft);
-
-
-/*
- * /dev/mixer abstraction
- */
-
-struct sound_mixer {
-    int busy;
-    int modify_counter;
-};
-
-static struct sound_mixer mixer;
-
-static struct sound_queue sq;
-static struct sound_queue read_sq;
-
-#define sq_block_address(i)	(sq.buffers[i])
-#define SIGNAL_RECEIVED	(signal_pending(current))
-#define NON_BLOCKING(open_mode)	(open_mode & O_NONBLOCK)
-#define ONE_SECOND	HZ	/* in jiffies (100ths of a second) */
-#define NO_TIME_LIMIT	0xffffffff
-
-/*
- * /dev/sndstat
- */
-
-struct sound_state {
-	int busy;
-	char buf[512];
-	int len, ptr;
-};
-
-static struct sound_state state;
-
-/*** Common stuff ********************************************************/
-
-static long long sound_lseek(struct file *file, long long offset, int orig);
-
-/*** Config & Setup **********************************************************/
-
-void dmasound_setup(char *str, int *ints);
-
-/*** Translations ************************************************************/
-
-
-/* ++TeSche: radically changed for new expanding purposes...
- *
- * These two routines now deal with copying/expanding/translating the samples
- * from user space into our buffer at the right frequency. They take care about
- * how much data there's actually to read, how much buffer space there is and
- * to convert samples into the right frequency/encoding. They will only work on
- * complete samples so it may happen they leave some bytes in the input stream
- * if the user didn't write a multiple of the current sample size. They both
- * return the number of bytes they've used from both streams so you may detect
- * such a situation. Luckily all programs should be able to cope with that.
- *
- * I think I've optimized anything as far as one can do in plain C, all
- * variables should fit in registers and the loops are really short. There's
- * one loop for every possible situation. Writing a more generalized and thus
- * parameterized loop would only produce slower code. Feel free to optimize
- * this in assembler if you like. :)
- *
- * I think these routines belong here because they're not yet really hardware
- * independent, especially the fact that the Falcon can play 16bit samples
- * only in stereo is hardcoded in both of them!
- *
- * ++geert: split in even more functions (one per format)
- */
-
-static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	short *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16;
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-		if (get_user(data, userPtr++))
-			return -EFAULT;
-		val = table[data];
-		*p++ = val;
-		if (stereo) {
-			if (get_user(data, userPtr++))
-				return -EFAULT;
-			val = table[data];
-		}
-		*p++ = val;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-		if (get_user(data, userPtr++))
-			return -EFAULT;
-		val = data << 8;
-		*p++ = val;
-		if (stereo) {
-			if (get_user(data, userPtr++))
-				return -EFAULT;
-			val = data << 8;
-		}
-		*p++ = val;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-		if (get_user(data, userPtr++))
-			return -EFAULT;
-		val = (data ^ 0x80) << 8;
-		*p++ = val;
-		if (stereo) {
-			if (get_user(data, userPtr++))
-				return -EFAULT;
-			val = (data ^ 0x80) << 8;
-		}
-		*p++ = val;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-/* This is the default format of the codec.  Signed, 16-bit stereo
- * generated by an application shouldn't have to be copied at all.
- * We should just get the phsical address of the buffers and update
- * the TDM BDs directly.
- */
-static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	if (!stereo) {
-		short *up = (short *) userPtr;
-		while (count > 0) {
-			short data;
-			if (get_user(data, up++))
-				return -EFAULT;
-			*fp++ = data;
-			*fp++ = data;
-			count--;
-		}
-	} else {
-		if (copy_from_user(fp, userPtr, count * 4))
-			return -EFAULT;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-	short *up = (short *) userPtr;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		int data;
-		if (get_user(data, up++))
-			return -EFAULT;
-		data ^= mask;
-		*fp++ = data;
-		if (stereo) {
-			if (get_user(data, up++))
-				return -EFAULT;
-			data ^= mask;
-		}
-		*fp++ = data;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-
-static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft)
-{
-	unsigned short *table = (unsigned short *)
-		(sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16);
-	unsigned int data = expand_data;
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int utotal, ftotal;
-	int stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		u_char c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(c, userPtr++))
-				return -EFAULT;
-			data = table[c];
-			if (stereo) {
-				if (get_user(c, userPtr++))
-					return -EFAULT;
-				data = (data << 16) + table[c];
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		u_char c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(c, userPtr++))
-				return -EFAULT;
-			data = c << 8;
-			if (stereo) {
-				if (get_user(c, userPtr++))
-					return -EFAULT;
-				data = (data << 16) + (c << 8);
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		u_char c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(c, userPtr++))
-				return -EFAULT;
-			data = (c ^ 0x80) << 8;
-			if (stereo) {
-				if (get_user(c, userPtr++))
-					return -EFAULT;
-				data = (data << 16) + ((c ^ 0x80) << 8);
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft)
-{
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	unsigned short *up = (unsigned short *) userPtr;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		unsigned short c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(data, up++))
-				return -EFAULT;
-			if (stereo) {
-				if (get_user(c, up++))
-					return -EFAULT;
-				data = (data << 16) + c;
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 4: utotal * 2;
-}
-
-
-static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft)
-{
-	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	unsigned short *up = (unsigned short *) userPtr;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		unsigned short c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(data, up++))
-				return -EFAULT;
-			data ^= mask;
-			if (stereo) {
-				if (get_user(c, up++))
-					return -EFAULT;
-				data = (data << 16) + (c ^ mask);
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 4: utotal * 2;
-}
-
-static ssize_t cs4218_ct_s8_read(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-
-		val = *p++;
-		data = val >> 8;
-		if (put_user(data, (u_char *)userPtr++))
-			return -EFAULT;
-		if (stereo) {
-			val = *p;
-			data = val >> 8;
-			if (put_user(data, (u_char *)userPtr++))
-				return -EFAULT;
-		}
-		p++;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_u8_read(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-
-		val = *p++;
-		data = (val >> 8) ^ 0x80;
-		if (put_user(data, (u_char *)userPtr++))
-			return -EFAULT;
-		if (stereo) {
-			val = *p;
-			data = (val >> 8) ^ 0x80;
-			if (put_user(data, (u_char *)userPtr++))
-				return -EFAULT;
-		}
-		p++;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	if (!stereo) {
-		short *up = (short *) userPtr;
-		while (count > 0) {
-			short data;
-			data = *fp;
-			if (put_user(data, up++))
-				return -EFAULT;
-			fp+=2;
-			count--;
-		}
-	} else {
-		if (copy_to_user((u_char *)userPtr, fp, count * 4))
-			return -EFAULT;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-	short *up = (short *) userPtr;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		int data;
-
-		data = *fp++;
-		data ^= mask;
-		if (put_user(data, up++))
-			return -EFAULT;
-		if (stereo) {
-			data = *fp;
-			data ^= mask;
-			if (put_user(data, up++))
-				return -EFAULT;
-		}
-		fp++;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-static TRANS transCSNormal = {
-	cs4218_ct_law, cs4218_ct_law, cs4218_ct_s8, cs4218_ct_u8,
-	cs4218_ct_s16, cs4218_ct_u16, cs4218_ct_s16, cs4218_ct_u16
-};
-
-static TRANS transCSExpand = {
-	cs4218_ctx_law, cs4218_ctx_law, cs4218_ctx_s8, cs4218_ctx_u8,
-	cs4218_ctx_s16, cs4218_ctx_u16, cs4218_ctx_s16, cs4218_ctx_u16
-};
-
-static TRANS transCSNormalRead = {
-	NULL, NULL, cs4218_ct_s8_read, cs4218_ct_u8_read,
-	cs4218_ct_s16_read, cs4218_ct_u16_read,
-	cs4218_ct_s16_read, cs4218_ct_u16_read
-};
-
-/*** Low level stuff *********************************************************/
-
-static void *CS_Alloc(unsigned int size, gfp_t flags)
-{
-	int	order;
-
-	size >>= 13;
-	for (order=0; order < 5; order++) {
-		if (size == 0)
-			break;
-		size >>= 1;
-	}
-	return (void *)__get_free_pages(flags, order);
-}
-
-static void CS_Free(void *ptr, unsigned int size)
-{
-	int	order;
-
-	size >>= 13;
-	for (order=0; order < 5; order++) {
-		if (size == 0)
-			break;
-		size >>= 1;
-	}
-	free_pages((ulong)ptr, order);
-}
-
-static int __init CS_IrqInit(void)
-{
-	cpm_install_handler(CPMVEC_SMC2, cs4218_intr, NULL);
-	return 1;
-}
-
-#ifdef MODULE
-static void CS_IrqCleanup(void)
-{
-	volatile smc_t		*sp;
-	volatile cpm8xx_t	*cp;
-
-	/* First disable transmitter and receiver.
-	*/
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-
-	/* And now shut down the SMC.
-	*/
-	cp = cpmp;	/* Get pointer to Communication Processor */
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-				CPM_CR_STOP_TX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-
-	/* Release the interrupt handler.
-	*/
-	cpm_free_handler(CPMVEC_SMC2);
-
-	kfree(beep_buf);
-	kd_mksound = orig_mksound;
-}
-#endif /* MODULE */
-
-static void CS_Silence(void)
-{
-	volatile smc_t		*sp;
-
-	/* Disable transmitter.
-	*/
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~SMCMR_TEN;
-}
-
-/* Frequencies depend upon external oscillator.  There are two
- * choices, 12.288 and 11.2896 MHz.  The RPCG audio supports both through
- * and external control register selection bit.
- */
-static int cs4218_freqs[] = {
-    /* 12.288  11.2896  */
-	48000, 44100,
-	32000, 29400,
-	24000, 22050,
-	19200, 17640,
-	16000, 14700,
-	12000, 11025,
-	 9600,  8820,
-	 8000,  7350
-};
-
-static void CS_Init(void)
-{
-	int i, tolerance;
-
-	switch (sound.soft.format) {
-	case AFMT_S16_LE:
-	case AFMT_U16_LE:
-		sound.hard.format = AFMT_S16_LE;
-		break;
-	default:
-		sound.hard.format = AFMT_S16_BE;
-		break;
-	}
-	sound.hard.stereo = 1;
-	sound.hard.size = 16;
-
-	/*
-	 * If we have a sample rate which is within catchRadius percent
-	 * of the requested value, we don't have to expand the samples.
-	 * Otherwise choose the next higher rate.
-	 */
-	i = (sizeof(cs4218_freqs) / sizeof(int));
-	do {
-		tolerance = catchRadius * cs4218_freqs[--i] / 100;
-	} while (sound.soft.speed > cs4218_freqs[i] + tolerance && i > 0);
-	if (sound.soft.speed >= cs4218_freqs[i] - tolerance)
-		sound.trans_write = &transCSNormal;
-	else
-		sound.trans_write = &transCSExpand;
-	sound.trans_read = &transCSNormalRead;
-	sound.hard.speed = cs4218_freqs[i];
-	cs4218_rate_index = i;
-
-	/* The CS4218 has seven selectable clock dividers for the sample
-	 * clock.  The HIOX then provides one of two external rates.
-	 * An even numbered frequency table index uses the high external
-	 * clock rate.
-	 */
-	*(uint *)HIOX_CSR4_ADDR &= ~(HIOX_CSR4_AUDCLKHI | HIOX_CSR4_AUDCLKSEL);
-	if ((i & 1) == 0)
-		*(uint *)HIOX_CSR4_ADDR |= HIOX_CSR4_AUDCLKHI;
-	i >>= 1;
-	*(uint *)HIOX_CSR4_ADDR |= (i & HIOX_CSR4_AUDCLKSEL);
-
-	expand_bal = -sound.soft.speed;
-}
-
-static int CS_SetFormat(int format)
-{
-	int size;
-
-	switch (format) {
-	case AFMT_QUERY:
-		return sound.soft.format;
-	case AFMT_MU_LAW:
-	case AFMT_A_LAW:
-	case AFMT_U8:
-	case AFMT_S8:
-		size = 8;
-		break;
-	case AFMT_S16_BE:
-	case AFMT_U16_BE:
-	case AFMT_S16_LE:
-	case AFMT_U16_LE:
-		size = 16;
-		break;
-	default: /* :-) */
-		printk(KERN_ERR "dmasound: unknown format 0x%x, using AFMT_U8\n",
-		       format);
-		size = 8;
-		format = AFMT_U8;
-	}
-
-	sound.soft.format = format;
-	sound.soft.size = size;
-	if (sound.minDev == SND_DEV_DSP) {
-		sound.dsp.format = format;
-		sound.dsp.size = size;
-	}
-
-	CS_Init();
-
-	return format;
-}
-
-/* Volume is the amount of attenuation we tell the codec to impose
- * on the outputs.  There are 32 levels, with 0 the "loudest".
- */
-#define CS_VOLUME_TO_MASK(x)	(31 - ((((x) - 1) * 31) / 99))
-#define CS_MASK_TO_VOLUME(y)	(100 - ((y) * 99 / 31))
-
-static int cs_get_volume(uint reg)
-{
-	int volume;
-
-	volume = CS_MASK_TO_VOLUME(CS_LATTEN_GET(reg));
-	volume |= CS_MASK_TO_VOLUME(CS_RATTEN_GET(reg)) << 8;
-	return volume;
-}
-
-static int cs_volume_setter(int volume, int mute)
-{
-	uint tempctl;
-
-	if (mute && volume == 0) {
-		tempctl = cs4218_control | CS_MUTE;
-	} else {
-		tempctl = cs4218_control & ~CS_MUTE;
-		tempctl = tempctl & ~(CS_LATTEN | CS_RATTEN);
-		tempctl |= CS_LATTEN_SET(CS_VOLUME_TO_MASK(volume & 0xff));
-		tempctl |= CS_RATTEN_SET(CS_VOLUME_TO_MASK((volume >> 8) & 0xff));
-		volume = cs_get_volume(tempctl);
-	}
-	if (tempctl != cs4218_control) {
-		cs4218_ctl_write(tempctl);
-	}
-	return volume;
-}
-
-
-/* Gain has 16 steps from 0 to 15.  These are in 1.5dB increments from
- * 0 (no gain) to 22.5 dB.
- */
-#define CS_RECLEVEL_TO_GAIN(v) \
-	((v) < 0 ? 0 : (v) > 100 ? 15 : (v) * 3 / 20)
-#define CS_GAIN_TO_RECLEVEL(v) (((v) * 20 + 2) / 3)
-
-static int cs_get_gain(uint reg)
-{
-	int gain;
-
-	gain = CS_GAIN_TO_RECLEVEL(CS_LGAIN_GET(reg));
-	gain |= CS_GAIN_TO_RECLEVEL(CS_RGAIN_GET(reg)) << 8;
-	return gain;
-}
-
-static int cs_set_gain(int gain)
-{
-	uint tempctl;
-
-	tempctl = cs4218_control & ~(CS_LGAIN | CS_RGAIN);
-	tempctl |= CS_LGAIN_SET(CS_RECLEVEL_TO_GAIN(gain & 0xff));
-	tempctl |= CS_RGAIN_SET(CS_RECLEVEL_TO_GAIN((gain >> 8) & 0xff));
-	gain = cs_get_gain(tempctl);
-
-	if (tempctl != cs4218_control) {
-		cs4218_ctl_write(tempctl);
-	}
-	return gain;
-}
-
-static int CS_SetVolume(int volume)
-{
-	return cs_volume_setter(volume, CS_MUTE);
-}
-
-static void CS_Play(void)
-{
-	int i, count;
-	unsigned long flags;
-	volatile cbd_t	*bdp;
-	volatile cpm8xx_t *cp;
-
-	/* Protect buffer */
-	spin_lock_irqsave(&cs4218_lock, flags);
-#if 0
-	if (awacs_beep_state) {
-		/* sound takes precedence over beeps */
-		out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
-		out_le32(&awacs->control,
-			 (in_le32(&awacs->control) & ~0x1f00)
-			 | (awacs_rate_index << 8));
-		out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE);
-		out_le32(&awacs_txdma->cmdptr, virt_to_bus(&(awacs_tx_cmds[(sq.front+sq.active) % sq.max_count])));
-
-		beep_playing = 0;
-		awacs_beep_state = 0;
-	}
-#endif
-	i = sq.front + sq.active;
-	if (i >= sq.max_count)
-		i -= sq.max_count;
-	while (sq.active < 2 && sq.active < sq.count) {
-		count = (sq.count == sq.active + 1)?sq.rear_size:sq.block_size;
-		if (count < sq.block_size && !sq.syncing)
-			/* last block not yet filled, and we're not syncing. */
-			break;
-
-		bdp = &tx_base[i];
-		bdp->cbd_datlen = count;
-
-		flush_dcache_range((ulong)sound_buffers[i],
-					(ulong)(sound_buffers[i] + count));
-
-		if (++i >= sq.max_count)
-			i = 0;
-
-		if (sq.active == 0) {
-			/* The SMC does not load its fifo until the first
-			 * TDM frame pulse, so the transmit data gets shifted
-			 * by one word.  To compensate for this, we incorrectly
-			 * transmit the first buffer and shorten it by one
-			 * word.  Subsequent buffers are then aligned properly.
-			 */
-			bdp->cbd_datlen -= 2;
-
-			/* Start up the SMC Transmitter.
-			*/
-			cp = cpmp;
-			cp->cp_smc[1].smc_smcmr |= SMCMR_TEN;
-			cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-					CPM_CR_RESTART_TX) | CPM_CR_FLG;
-			while (cp->cp_cpcr & CPM_CR_FLG);
-		}
-
-		/* Buffer is ready now.
-		*/
-		bdp->cbd_sc |= BD_SC_READY;
-
-		++sq.active;
-	}
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-
-static void CS_Record(void)
-{
-	unsigned long flags;
-	volatile smc_t		*sp;
-
-	if (read_sq.active)
-		return;
-
-	/* Protect buffer */
-	spin_lock_irqsave(&cs4218_lock, flags);
-
-	/* This is all we have to do......Just start it up.
-	*/
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr |= SMCMR_REN;
-
-	read_sq.active = 1;
-
-        spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-
-static void
-cs4218_tdm_tx_intr(void *devid)
-{
-	int i = sq.front;
-	volatile cbd_t *bdp;
-
-	while (sq.active > 0) {
-		bdp = &tx_base[i];
-		if (bdp->cbd_sc & BD_SC_READY)
-			break;	/* this frame is still going */
-		--sq.count;
-		--sq.active;
-		if (++i >= sq.max_count)
-			i = 0;
-	}
-	if (i != sq.front)
-		WAKE_UP(sq.action_queue);
-	sq.front = i;
-
-	CS_Play();
-
-	if (!sq.active)
-		WAKE_UP(sq.sync_queue);
-}
-
-
-static void
-cs4218_tdm_rx_intr(void *devid)
-{
-
-	/* We want to blow 'em off when shutting down.
-	*/
-	if (read_sq.active == 0)
-		return;
-
-	/* Check multiple buffers in case we were held off from
-	 * interrupt processing for a long time.  Geeze, I really hope
-	 * this doesn't happen.
-	 */
-	while ((rx_base[read_sq.rear].cbd_sc & BD_SC_EMPTY) == 0) {
-
-		/* Invalidate the data cache range for this buffer.
-		*/
-		invalidate_dcache_range(
-		    (uint)(sound_read_buffers[read_sq.rear]),
-		    (uint)(sound_read_buffers[read_sq.rear] + read_sq.block_size));
-
-		/* Make buffer available again and move on.
-		*/
-		rx_base[read_sq.rear].cbd_sc |= BD_SC_EMPTY;
-		read_sq.rear++;
-
-		/* Wrap the buffer ring.
-		*/
-		if (read_sq.rear >= read_sq.max_active)
-			read_sq.rear = 0;
-
-		/* If we have caught up to the front buffer, bump it.
-		 * This will cause weird (but not fatal) results if the
-		 * read loop is currently using this buffer.  The user is
-		 * behind in this case anyway, so weird things are going
-		 * to happen.
-		 */
-		if (read_sq.rear == read_sq.front) {
-			read_sq.front++;
-			if (read_sq.front >= read_sq.max_active)
-				read_sq.front = 0;
-		}
-	}
-
-	WAKE_UP(read_sq.action_queue);
-}
-
-static void cs_nosound(unsigned long xx)
-{
-	unsigned long flags;
-
-	/* not sure if this is needed, since hardware command is #if 0'd */
-	spin_lock_irqsave(&cs4218_lock, flags);
-	if (beep_playing) {
-#if 0
-		st_le16(&beep_dbdma_cmd->command, DBDMA_STOP);
-#endif
-		beep_playing = 0;
-	}
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-static DEFINE_TIMER(beep_timer, cs_nosound, 0, 0);
-
-static void cs_mksound(unsigned int hz, unsigned int ticks)
-{
-	unsigned long flags;
-	int beep_speed = BEEP_SPEED;
-	int srate = cs4218_freqs[beep_speed];
-	int period, ncycles, nsamples;
-	int i, j, f;
-	short *p;
-	static int beep_hz_cache;
-	static int beep_nsamples_cache;
-	static int beep_volume_cache;
-
-	if (hz <= srate / BEEP_BUFLEN || hz > srate / 2) {
-#if 1
-		/* this is a hack for broken X server code */
-		hz = 750;
-		ticks = 12;
-#else
-		/* cancel beep currently playing */
-		awacs_nosound(0);
-		return;
-#endif
-	}
-	/* lock while modifying beep_timer */
-	spin_lock_irqsave(&cs4218_lock, flags);
-	del_timer(&beep_timer);
-	if (ticks) {
-		beep_timer.expires = jiffies + ticks;
-		add_timer(&beep_timer);
-	}
-	if (beep_playing || sq.active || beep_buf == NULL) {
-		spin_unlock_irqrestore(&cs4218_lock, flags);
-		return;		/* too hard, sorry :-( */
-	}
-	beep_playing = 1;
-#if 0
-	st_le16(&beep_dbdma_cmd->command, OUTPUT_MORE + BR_ALWAYS);
-#endif
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-
-	if (hz == beep_hz_cache && beep_volume == beep_volume_cache) {
-		nsamples = beep_nsamples_cache;
-	} else {
-		period = srate * 256 / hz;	/* fixed point */
-		ncycles = BEEP_BUFLEN * 256 / period;
-		nsamples = (period * ncycles) >> 8;
-		f = ncycles * 65536 / nsamples;
-		j = 0;
-		p = beep_buf;
-		for (i = 0; i < nsamples; ++i, p += 2) {
-			p[0] = p[1] = beep_wform[j >> 8] * beep_volume;
-			j = (j + f) & 0xffff;
-		}
-		beep_hz_cache = hz;
-		beep_volume_cache = beep_volume;
-		beep_nsamples_cache = nsamples;
-	}
-
-#if 0
-	st_le16(&beep_dbdma_cmd->req_count, nsamples*4);
-	st_le16(&beep_dbdma_cmd->xfer_status, 0);
-	st_le32(&beep_dbdma_cmd->cmd_dep, virt_to_bus(beep_dbdma_cmd));
-	st_le32(&beep_dbdma_cmd->phy_addr, virt_to_bus(beep_buf));
-	awacs_beep_state = 1;
-
-	spin_lock_irqsave(&cs4218_lock, flags);
-	if (beep_playing) {	/* i.e. haven't been terminated already */
-		out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
-		out_le32(&awacs->control,
-			 (in_le32(&awacs->control) & ~0x1f00)
-			 | (beep_speed << 8));
-		out_le32(&awacs->byteswap, 0);
-		out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd));
-		out_le32(&awacs_txdma->control, RUN | (RUN << 16));
-	}
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-#endif
-}
-
-static MACHINE mach_cs4218 = {
-	.owner =	THIS_MODULE,
-	.name =		"HIOX CS4218",
-	.name2 =	"Built-in Sound",
-	.dma_alloc =	CS_Alloc,
-	.dma_free =	CS_Free,
-	.irqinit =	CS_IrqInit,
-#ifdef MODULE
-	.irqcleanup =	CS_IrqCleanup,
-#endif /* MODULE */
-	.init =		CS_Init,
-	.silence =	CS_Silence,
-	.setFormat =	CS_SetFormat,
-	.setVolume =	CS_SetVolume,
-	.play =		CS_Play
-};
-
-
-/*** Mid level stuff *********************************************************/
-
-
-static void sound_silence(void)
-{
-	/* update hardware settings one more */
-	(*sound.mach.init)();
-
-	(*sound.mach.silence)();
-}
-
-
-static void sound_init(void)
-{
-	(*sound.mach.init)();
-}
-
-
-static int sound_set_format(int format)
-{
-	return(*sound.mach.setFormat)(format);
-}
-
-
-static int sound_set_speed(int speed)
-{
-	if (speed < 0)
-		return(sound.soft.speed);
-
-	sound.soft.speed = speed;
-	(*sound.mach.init)();
-	if (sound.minDev == SND_DEV_DSP)
-		sound.dsp.speed = sound.soft.speed;
-
-	return(sound.soft.speed);
-}
-
-
-static int sound_set_stereo(int stereo)
-{
-	if (stereo < 0)
-		return(sound.soft.stereo);
-
-	stereo = !!stereo;    /* should be 0 or 1 now */
-
-	sound.soft.stereo = stereo;
-	if (sound.minDev == SND_DEV_DSP)
-		sound.dsp.stereo = stereo;
-	(*sound.mach.init)();
-
-	return(stereo);
-}
-
-
-static int sound_set_volume(int volume)
-{
-	return(*sound.mach.setVolume)(volume);
-}
-
-static ssize_t sound_copy_translate(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft)
-{
-	ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
-
-	switch (sound.soft.format) {
-	case AFMT_MU_LAW:
-		ct_func = sound.trans_write->ct_ulaw;
-		break;
-	case AFMT_A_LAW:
-		ct_func = sound.trans_write->ct_alaw;
-		break;
-	case AFMT_S8:
-		ct_func = sound.trans_write->ct_s8;
-		break;
-	case AFMT_U8:
-		ct_func = sound.trans_write->ct_u8;
-		break;
-	case AFMT_S16_BE:
-		ct_func = sound.trans_write->ct_s16be;
-		break;
-	case AFMT_U16_BE:
-		ct_func = sound.trans_write->ct_u16be;
-		break;
-	case AFMT_S16_LE:
-		ct_func = sound.trans_write->ct_s16le;
-		break;
-	case AFMT_U16_LE:
-		ct_func = sound.trans_write->ct_u16le;
-		break;
-	}
-	if (ct_func)
-		return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
-	else
-		return 0;
-}
-
-static ssize_t sound_copy_translate_read(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft)
-{
-	ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
-
-	switch (sound.soft.format) {
-	case AFMT_MU_LAW:
-		ct_func = sound.trans_read->ct_ulaw;
-		break;
-	case AFMT_A_LAW:
-		ct_func = sound.trans_read->ct_alaw;
-		break;
-	case AFMT_S8:
-		ct_func = sound.trans_read->ct_s8;
-		break;
-	case AFMT_U8:
-		ct_func = sound.trans_read->ct_u8;
-		break;
-	case AFMT_S16_BE:
-		ct_func = sound.trans_read->ct_s16be;
-		break;
-	case AFMT_U16_BE:
-		ct_func = sound.trans_read->ct_u16be;
-		break;
-	case AFMT_S16_LE:
-		ct_func = sound.trans_read->ct_s16le;
-		break;
-	case AFMT_U16_LE:
-		ct_func = sound.trans_read->ct_u16le;
-		break;
-	}
-	if (ct_func)
-		return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
-	else
-		return 0;
-}
-
-
-/*
- * /dev/mixer abstraction
- */
-
-static int mixer_open(struct inode *inode, struct file *file)
-{
-	mixer.busy = 1;
-	return nonseekable_open(inode, file);
-}
-
-
-static int mixer_release(struct inode *inode, struct file *file)
-{
-	mixer.busy = 0;
-	return 0;
-}
-
-
-static int mixer_ioctl(struct inode *inode, struct file *file, u_int cmd,
-		       u_long arg)
-{
-	int data;
-	uint tmpcs;
-
-	if (_SIOC_DIR(cmd) & _SIOC_WRITE)
-	    mixer.modify_counter++;
-	if (cmd == OSS_GETVERSION)
-	    return IOCTL_OUT(arg, SOUND_VERSION);
-	switch (cmd) {
-		case SOUND_MIXER_INFO: {
-		    mixer_info info;
-		    strlcpy(info.id, "CS4218_TDM", sizeof(info.id));
-		    strlcpy(info.name, "CS4218_TDM", sizeof(info.name));
-		    info.name[sizeof(info.name)-1] = 0;
-		    info.modify_counter = mixer.modify_counter;
-		    if (copy_to_user((int *)arg, &info, sizeof(info)))
-		    		return -EFAULT;
-		    return 0;
-		}
-		case SOUND_MIXER_READ_DEVMASK:
-			data = SOUND_MASK_VOLUME | SOUND_MASK_LINE
-				| SOUND_MASK_MIC | SOUND_MASK_RECLEV
-				| SOUND_MASK_ALTPCM;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_RECMASK:
-			data = SOUND_MASK_LINE | SOUND_MASK_MIC;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_RECSRC:
-			if (cs4218_control & CS_DO1)
-				data = SOUND_MASK_LINE;
-			else
-				data = SOUND_MASK_MIC;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_WRITE_RECSRC:
-			IOCTL_IN(arg, data);
-			data &= (SOUND_MASK_LINE | SOUND_MASK_MIC);
-			if (data & SOUND_MASK_LINE)
-				tmpcs = cs4218_control |
-						(CS_ISL | CS_ISR | CS_DO1);
-			if (data & SOUND_MASK_MIC)
-				tmpcs = cs4218_control &
-						~(CS_ISL | CS_ISR | CS_DO1);
-			if (tmpcs != cs4218_control)
-				cs4218_ctl_write(tmpcs);
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_STEREODEVS:
-			data = SOUND_MASK_VOLUME | SOUND_MASK_RECLEV;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_CAPS:
-			return IOCTL_OUT(arg, 0);
-		case SOUND_MIXER_READ_VOLUME:
-			data = (cs4218_control & CS_MUTE)? 0:
-				cs_get_volume(cs4218_control);
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_WRITE_VOLUME:
-			IOCTL_IN(arg, data);
-			return IOCTL_OUT(arg, sound_set_volume(data));
-		case SOUND_MIXER_WRITE_ALTPCM:	/* really bell volume */
-			IOCTL_IN(arg, data);
-			beep_volume = data & 0xff;
-			/* fall through */
-		case SOUND_MIXER_READ_ALTPCM:
-			return IOCTL_OUT(arg, beep_volume);
-		case SOUND_MIXER_WRITE_RECLEV:
-			IOCTL_IN(arg, data);
-			data = cs_set_gain(data);
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_RECLEV:
-			data = cs_get_gain(cs4218_control);
-			return IOCTL_OUT(arg, data);
-	}
-
-	return -EINVAL;
-}
-
-
-static const struct file_operations mixer_fops =
-{
-	.owner =	THIS_MODULE,
-	.llseek =	sound_lseek,
-	.ioctl =	mixer_ioctl,
-	.open =		mixer_open,
-	.release =	mixer_release,
-};
-
-
-static void __init mixer_init(void)
-{
-	mixer_unit = register_sound_mixer(&mixer_fops, -1);
-	if (mixer_unit < 0)
-		return;
-
-	mixer.busy = 0;
-	sound.treble = 0;
-	sound.bass = 0;
-
-	/* Set Line input, no gain, no attenuation.
-	*/
-	cs4218_control = CS_ISL | CS_ISR | CS_DO1;
-	cs4218_control |= CS_LGAIN_SET(0) | CS_RGAIN_SET(0);
-	cs4218_control |= CS_LATTEN_SET(0) | CS_RATTEN_SET(0);
-	cs4218_ctl_write(cs4218_control);
-}
-
-
-/*
- * Sound queue stuff, the heart of the driver
- */
-
-
-static int sq_allocate_buffers(void)
-{
-	int i;
-
-	if (sound_buffers)
-		return 0;
-	sound_buffers = kmalloc (numBufs * sizeof(char *), GFP_KERNEL);
-	if (!sound_buffers)
-		return -ENOMEM;
-	for (i = 0; i < numBufs; i++) {
-		sound_buffers[i] = sound.mach.dma_alloc (bufSize << 10, GFP_KERNEL);
-		if (!sound_buffers[i]) {
-			while (i--)
-				sound.mach.dma_free (sound_buffers[i], bufSize << 10);
-			kfree (sound_buffers);
-			sound_buffers = 0;
-			return -ENOMEM;
-		}
-	}
-	return 0;
-}
-
-
-static void sq_release_buffers(void)
-{
-	int i;
-
-	if (sound_buffers) {
-		for (i = 0; i < numBufs; i++)
-			sound.mach.dma_free (sound_buffers[i], bufSize << 10);
-		kfree (sound_buffers);
-		sound_buffers = 0;
-	}
-}
-
-
-static int sq_allocate_read_buffers(void)
-{
-	int i;
-
-	if (sound_read_buffers)
-		return 0;
-	sound_read_buffers = kmalloc(numReadBufs * sizeof(char *), GFP_KERNEL);
-	if (!sound_read_buffers)
-		return -ENOMEM;
-	for (i = 0; i < numBufs; i++) {
-		sound_read_buffers[i] = sound.mach.dma_alloc (readbufSize<<10,
-							      GFP_KERNEL);
-		if (!sound_read_buffers[i]) {
-			while (i--)
-				sound.mach.dma_free (sound_read_buffers[i],
-						     readbufSize << 10);
-			kfree (sound_read_buffers);
-			sound_read_buffers = 0;
-			return -ENOMEM;
-		}
-	}
-	return 0;
-}
-
-static void sq_release_read_buffers(void)
-{
-	int i;
-
-	if (sound_read_buffers) {
-		cpmp->cp_smc[1].smc_smcmr &= ~SMCMR_REN;
-		for (i = 0; i < numReadBufs; i++)
-			sound.mach.dma_free (sound_read_buffers[i],
-					     bufSize << 10);
-		kfree (sound_read_buffers);
-		sound_read_buffers = 0;
-	}
-}
-
-
-static void sq_setup(int numBufs, int bufSize, char **write_buffers)
-{
-	int i;
-	volatile cbd_t *bdp;
-	volatile cpm8xx_t	*cp;
-	volatile smc_t	*sp;
-
-	/* Make sure the SMC transmit is shut down.
-	*/
-	cp = cpmp;
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~SMCMR_TEN;
-
-	sq.max_count = numBufs;
-	sq.max_active = numBufs;
-	sq.block_size = bufSize;
-	sq.buffers = write_buffers;
-
-	sq.front = sq.count = 0;
-	sq.rear = -1;
-	sq.syncing = 0;
-	sq.active = 0;
-
-	bdp = tx_base;
-	for (i=0; i<numBufs; i++) {
-		bdp->cbd_bufaddr = virt_to_bus(write_buffers[i]);
-		bdp++;
-	}
-
-	/* This causes the SMC to sync up with the first buffer again.
-	*/
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_TX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-}
-
-static void read_sq_setup(int numBufs, int bufSize, char **read_buffers)
-{
-	int i;
-	volatile cbd_t *bdp;
-	volatile cpm8xx_t	*cp;
-	volatile smc_t	*sp;
-
-	/* Make sure the SMC receive is shut down.
-	*/
-	cp = cpmp;
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~SMCMR_REN;
-
-	read_sq.max_count = numBufs;
-	read_sq.max_active = numBufs;
-	read_sq.block_size = bufSize;
-	read_sq.buffers = read_buffers;
-
-	read_sq.front = read_sq.count = 0;
-	read_sq.rear = 0;
-	read_sq.rear_size = 0;
-	read_sq.syncing = 0;
-	read_sq.active = 0;
-
-	bdp = rx_base;
-	for (i=0; i<numReadBufs; i++) {
-		bdp->cbd_bufaddr = virt_to_bus(read_buffers[i]);
-		bdp->cbd_datlen = read_sq.block_size;
-		bdp++;
-	}
-
-	/* This causes the SMC to sync up with the first buffer again.
-	*/
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_RX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-}
-
-
-static void sq_play(void)
-{
-	(*sound.mach.play)();
-}
-
-
-/* ++TeSche: radically changed this one too */
-
-static ssize_t sq_write(struct file *file, const char *src, size_t uLeft,
-			loff_t *ppos)
-{
-	ssize_t uWritten = 0;
-	u_char *dest;
-	ssize_t uUsed, bUsed, bLeft;
-
-	/* ++TeSche: Is something like this necessary?
-	 * Hey, that's an honest question! Or does any other part of the
-	 * filesystem already checks this situation? I really don't know.
-	 */
-	if (uLeft == 0)
-		return 0;
-
-	/* The interrupt doesn't start to play the last, incomplete frame.
-	 * Thus we can append to it without disabling the interrupts! (Note
-	 * also that sq.rear isn't affected by the interrupt.)
-	 */
-
-	if (sq.count > 0 && (bLeft = sq.block_size-sq.rear_size) > 0) {
-		dest = sq_block_address(sq.rear);
-		bUsed = sq.rear_size;
-		uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
-		if (uUsed <= 0)
-			return uUsed;
-		src += uUsed;
-		uWritten += uUsed;
-		uLeft -= uUsed;
-		sq.rear_size = bUsed;
-	}
-
-	do {
-		while (sq.count == sq.max_active) {
-			sq_play();
-			if (NON_BLOCKING(sq.open_mode))
-				return uWritten > 0 ? uWritten : -EAGAIN;
-			SLEEP(sq.action_queue);
-			if (SIGNAL_RECEIVED)
-				return uWritten > 0 ? uWritten : -EINTR;
-		}
-
-		/* Here, we can avoid disabling the interrupt by first
-		 * copying and translating the data, and then updating
-		 * the sq variables. Until this is done, the interrupt
-		 * won't see the new frame and we can work on it
-		 * undisturbed.
-		 */
-
-		dest = sq_block_address((sq.rear+1) % sq.max_count);
-		bUsed = 0;
-		bLeft = sq.block_size;
-		uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
-		if (uUsed <= 0)
-			break;
-		src += uUsed;
-		uWritten += uUsed;
-		uLeft -= uUsed;
-		if (bUsed) {
-			sq.rear = (sq.rear+1) % sq.max_count;
-			sq.rear_size = bUsed;
-			sq.count++;
-		}
-	} while (bUsed);   /* uUsed may have been 0 */
-
-	sq_play();
-
-	return uUsed < 0? uUsed: uWritten;
-}
-
-
-/***********/
-
-/* Here is how the values are used for reading.
- * The value 'active' simply indicates the DMA is running.  This is
- * done so the driver semantics are DMA starts when the first read is
- * posted.  The value 'front' indicates the buffer we should next
- * send to the user.  The value 'rear' indicates the buffer the DMA is
- * currently filling.  When 'front' == 'rear' the buffer "ring" is
- * empty (we always have an empty available).  The 'rear_size' is used
- * to track partial offsets into the current buffer.  Right now, I just keep
- * The DMA running.  If the reader can't keep up, the interrupt tosses
- * the oldest buffer.  We could also shut down the DMA in this case.
- */
-static ssize_t sq_read(struct file *file, char *dst, size_t uLeft,
-                       loff_t *ppos)
-{
-
-	ssize_t	uRead, bLeft, bUsed, uUsed;
-
-	if (uLeft == 0)
-		return 0;
-
-	if (!read_sq.active)
-		CS_Record();	/* Kick off the record process. */
-
-	uRead = 0;
-
-	/* Move what the user requests, depending upon other options.
-	*/
-	while (uLeft > 0) {
-
-		/* When front == rear, the DMA is not done yet.
-		*/
-		while (read_sq.front == read_sq.rear) {
-			if (NON_BLOCKING(read_sq.open_mode)) {
-			       return uRead > 0 ? uRead : -EAGAIN;
-			}
-			SLEEP(read_sq.action_queue);
-			if (SIGNAL_RECEIVED)
-				return uRead > 0 ? uRead : -EINTR;
-		}
-
-		/* The amount we move is either what is left in the
-		 * current buffer or what the user wants.
-		 */
-		bLeft = read_sq.block_size - read_sq.rear_size;
-		bUsed = read_sq.rear_size;
-		uUsed = sound_copy_translate_read(dst, uLeft,
-			read_sq.buffers[read_sq.front], &bUsed, bLeft);
-		if (uUsed <= 0)
-			return uUsed;
-		dst += uUsed;
-		uRead += uUsed;
-		uLeft -= uUsed;
-		read_sq.rear_size += bUsed;
-		if (read_sq.rear_size >= read_sq.block_size) {
-			read_sq.rear_size = 0;
-			read_sq.front++;
-			if (read_sq.front >= read_sq.max_active)
-				read_sq.front = 0;
-		}
-	}
-	return uRead;
-}
-
-static int sq_open(struct inode *inode, struct file *file)
-{
-	int rc = 0;
-
-	if (file->f_mode & FMODE_WRITE) {
-		if (sq.busy) {
-			rc = -EBUSY;
-			if (NON_BLOCKING(file->f_flags))
-				goto err_out;
-			rc = -EINTR;
-			while (sq.busy) {
-				SLEEP(sq.open_queue);
-				if (SIGNAL_RECEIVED)
-					goto err_out;
-			}
-		}
-		sq.busy = 1; /* Let's play spot-the-race-condition */
-
-		if (sq_allocate_buffers()) goto err_out_nobusy;
-
-		sq_setup(numBufs, bufSize<<10,sound_buffers);
-		sq.open_mode = file->f_mode;
-	}
-
-
-	if (file->f_mode & FMODE_READ) {
-		if (read_sq.busy) {
-			rc = -EBUSY;
-			if (NON_BLOCKING(file->f_flags))
-				goto err_out;
-			rc = -EINTR;
-			while (read_sq.busy) {
-				SLEEP(read_sq.open_queue);
-				if (SIGNAL_RECEIVED)
-					goto err_out;
-			}
-			rc = 0;
-		}
-		read_sq.busy = 1;
-		if (sq_allocate_read_buffers()) goto err_out_nobusy;
-
-		read_sq_setup(numReadBufs,readbufSize<<10, sound_read_buffers);
-		read_sq.open_mode = file->f_mode;
-	}
-
-	/* Start up the 4218 by:
-	 * Reset.
-	 * Enable, unreset.
-	 */
-	*((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_RSTAUDIO;
-	eieio();
-	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_ENAUDIO;
-	mdelay(50);
-	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
-
-	/* We need to send the current control word in case someone
-	 * opened /dev/mixer and changed things while we were shut
-	 * down.  Chances are good the initialization that follows
-	 * would have done this, but it is still possible it wouldn't.
-	 */
-	cs4218_ctl_write(cs4218_control);
-
-	sound.minDev = iminor(inode) & 0x0f;
-	sound.soft = sound.dsp;
-	sound.hard = sound.dsp;
-	sound_init();
-	if ((iminor(inode) & 0x0f) == SND_DEV_AUDIO) {
-		sound_set_speed(8000);
-		sound_set_stereo(0);
-		sound_set_format(AFMT_MU_LAW);
-	}
-
-	return nonseekable_open(inode, file);
-
-err_out_nobusy:
-	if (file->f_mode & FMODE_WRITE) {
-		sq.busy = 0;
-		WAKE_UP(sq.open_queue);
-	}
-	if (file->f_mode & FMODE_READ) {
-		read_sq.busy = 0;
-		WAKE_UP(read_sq.open_queue);
-	}
-err_out:
-	return rc;
-}
-
-
-static void sq_reset(void)
-{
-	sound_silence();
-	sq.active = 0;
-	sq.count = 0;
-	sq.front = (sq.rear+1) % sq.max_count;
-#if 0
-	init_tdm_buffers();
-#endif
-}
-
-
-static int sq_fsync(struct file *filp, struct dentry *dentry)
-{
-	int rc = 0;
-
-	sq.syncing = 1;
-	sq_play();	/* there may be an incomplete frame waiting */
-
-	while (sq.active) {
-		SLEEP(sq.sync_queue);
-		if (SIGNAL_RECEIVED) {
-			/* While waiting for audio output to drain, an
-			 * interrupt occurred.  Stop audio output immediately
-			 * and clear the queue. */
-			sq_reset();
-			rc = -EINTR;
-			break;
-		}
-	}
-
-	sq.syncing = 0;
-	return rc;
-}
-
-static int sq_release(struct inode *inode, struct file *file)
-{
-	int rc = 0;
-
-	if (sq.busy)
-		rc = sq_fsync(file, file->f_path.dentry);
-	sound.soft = sound.dsp;
-	sound.hard = sound.dsp;
-	sound_silence();
-
-	sq_release_read_buffers();
-	sq_release_buffers();
-
-	if (file->f_mode & FMODE_READ) {
-		read_sq.busy = 0;
-		WAKE_UP(read_sq.open_queue);
-	}
-
-	if (file->f_mode & FMODE_WRITE) {
-		sq.busy = 0;
-		WAKE_UP(sq.open_queue);
-	}
-
-	/* Shut down the SMC.
-	*/
-	cpmp->cp_smc[1].smc_smcmr &= ~(SMCMR_TEN | SMCMR_REN);
-
-	/* Shut down the codec.
-	*/
-	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
-	eieio();
-	*((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_ENAUDIO;
-
-	/* Wake up a process waiting for the queue being released.
-	 * Note: There may be several processes waiting for a call
-	 * to open() returning. */
-
-	return rc;
-}
-
-
-static int sq_ioctl(struct inode *inode, struct file *file, u_int cmd,
-		    u_long arg)
-{
-	u_long fmt;
-	int data;
-#if 0
-	int size, nbufs;
-#else
-	int size;
-#endif
-
-	switch (cmd) {
-	case SNDCTL_DSP_RESET:
-		sq_reset();
-		return 0;
-	case SNDCTL_DSP_POST:
-	case SNDCTL_DSP_SYNC:
-		return sq_fsync(file, file->f_path.dentry);
-
-		/* ++TeSche: before changing any of these it's
-		 * probably wise to wait until sound playing has
-		 * settled down. */
-	case SNDCTL_DSP_SPEED:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_speed(data));
-	case SNDCTL_DSP_STEREO:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_stereo(data));
-	case SOUND_PCM_WRITE_CHANNELS:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_stereo(data-1)+1);
-	case SNDCTL_DSP_SETFMT:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_format(data));
-	case SNDCTL_DSP_GETFMTS:
-		fmt = 0;
-		if (sound.trans_write) {
-			if (sound.trans_write->ct_ulaw)
-				fmt |= AFMT_MU_LAW;
-			if (sound.trans_write->ct_alaw)
-				fmt |= AFMT_A_LAW;
-			if (sound.trans_write->ct_s8)
-				fmt |= AFMT_S8;
-			if (sound.trans_write->ct_u8)
-				fmt |= AFMT_U8;
-			if (sound.trans_write->ct_s16be)
-				fmt |= AFMT_S16_BE;
-			if (sound.trans_write->ct_u16be)
-				fmt |= AFMT_U16_BE;
-			if (sound.trans_write->ct_s16le)
-				fmt |= AFMT_S16_LE;
-			if (sound.trans_write->ct_u16le)
-				fmt |= AFMT_U16_LE;
-		}
-		return IOCTL_OUT(arg, fmt);
-	case SNDCTL_DSP_GETBLKSIZE:
-		size = sq.block_size
-			* sound.soft.size * (sound.soft.stereo + 1)
-			/ (sound.hard.size * (sound.hard.stereo + 1));
-		return IOCTL_OUT(arg, size);
-	case SNDCTL_DSP_SUBDIVIDE:
-		break;
-#if 0	/* Sorry can't do this at the moment.  The CPM allocated buffers
-	 * long ago that can't be changed.
-	 */
-	case SNDCTL_DSP_SETFRAGMENT:
-		if (sq.count || sq.active || sq.syncing)
-			return -EINVAL;
-		IOCTL_IN(arg, size);
-		nbufs = size >> 16;
-		if (nbufs < 2 || nbufs > numBufs)
-			nbufs = numBufs;
-		size &= 0xffff;
-		if (size >= 8 && size <= 30) {
-			size = 1 << size;
-			size *= sound.hard.size * (sound.hard.stereo + 1);
-			size /= sound.soft.size * (sound.soft.stereo + 1);
-			if (size > (bufSize << 10))
-				size = bufSize << 10;
-		} else
-			size = bufSize << 10;
-		sq_setup(numBufs, size, sound_buffers);
-		sq.max_active = nbufs;
-		return 0;
-#endif
-
-	default:
-		return mixer_ioctl(inode, file, cmd, arg);
-	}
-	return -EINVAL;
-}
-
-
-
-static const struct file_operations sq_fops =
-{
-	.owner =	THIS_MODULE,
-	.llseek =	sound_lseek,
-	.read =		sq_read,			/* sq_read */
-	.write =	sq_write,
-	.ioctl =	sq_ioctl,
-	.open =		sq_open,
-	.release =	sq_release,
-};
-
-
-static void __init sq_init(void)
-{
-	sq_unit = register_sound_dsp(&sq_fops, -1);
-	if (sq_unit < 0)
-		return;
-
-	init_waitqueue_head(&sq.action_queue);
-	init_waitqueue_head(&sq.open_queue);
-	init_waitqueue_head(&sq.sync_queue);
-	init_waitqueue_head(&read_sq.action_queue);
-	init_waitqueue_head(&read_sq.open_queue);
-	init_waitqueue_head(&read_sq.sync_queue);
-
-	sq.busy = 0;
-	read_sq.busy = 0;
-
-	/* whatever you like as startup mode for /dev/dsp,
-	 * (/dev/audio hasn't got a startup mode). note that
-	 * once changed a new open() will *not* restore these!
-	 */
-	sound.dsp.format = AFMT_S16_BE;
-	sound.dsp.stereo = 1;
-	sound.dsp.size = 16;
-
-	/* set minimum rate possible without expanding */
-	sound.dsp.speed = 8000;
-
-	/* before the first open to /dev/dsp this wouldn't be set */
-	sound.soft = sound.dsp;
-	sound.hard = sound.dsp;
-
-	sound_silence();
-}
-
-/*
- * /dev/sndstat
- */
-
-
-/* state.buf should not overflow! */
-
-static int state_open(struct inode *inode, struct file *file)
-{
-	char *buffer = state.buf, *mach = "", cs4218_buf[50];
-	int len = 0;
-
-	if (state.busy)
-		return -EBUSY;
-
-	state.ptr = 0;
-	state.busy = 1;
-
-	sprintf(cs4218_buf, "Crystal CS4218 on TDM, ");
-	mach = cs4218_buf;
-
-	len += sprintf(buffer+len, "%sDMA sound driver:\n", mach);
-
-	len += sprintf(buffer+len, "\tsound.format = 0x%x", sound.soft.format);
-	switch (sound.soft.format) {
-	case AFMT_MU_LAW:
-		len += sprintf(buffer+len, " (mu-law)");
-		break;
-	case AFMT_A_LAW:
-		len += sprintf(buffer+len, " (A-law)");
-		break;
-	case AFMT_U8:
-		len += sprintf(buffer+len, " (unsigned 8 bit)");
-		break;
-	case AFMT_S8:
-		len += sprintf(buffer+len, " (signed 8 bit)");
-		break;
-	case AFMT_S16_BE:
-		len += sprintf(buffer+len, " (signed 16 bit big)");
-		break;
-	case AFMT_U16_BE:
-		len += sprintf(buffer+len, " (unsigned 16 bit big)");
-		break;
-	case AFMT_S16_LE:
-		len += sprintf(buffer+len, " (signed 16 bit little)");
-		break;
-	case AFMT_U16_LE:
-		len += sprintf(buffer+len, " (unsigned 16 bit little)");
-		break;
-	}
-	len += sprintf(buffer+len, "\n");
-	len += sprintf(buffer+len, "\tsound.speed = %dHz (phys. %dHz)\n",
-		       sound.soft.speed, sound.hard.speed);
-	len += sprintf(buffer+len, "\tsound.stereo = 0x%x (%s)\n",
-		       sound.soft.stereo, sound.soft.stereo ? "stereo" : "mono");
-	len += sprintf(buffer+len, "\tsq.block_size = %d sq.max_count = %d"
-		       " sq.max_active = %d\n",
-		       sq.block_size, sq.max_count, sq.max_active);
-	len += sprintf(buffer+len, "\tsq.count = %d sq.rear_size = %d\n", sq.count,
-		       sq.rear_size);
-	len += sprintf(buffer+len, "\tsq.active = %d sq.syncing = %d\n",
-		       sq.active, sq.syncing);
-	state.len = len;
-	return nonseekable_open(inode, file);
-}
-
-
-static int state_release(struct inode *inode, struct file *file)
-{
-	state.busy = 0;
-	return 0;
-}
-
-
-static ssize_t state_read(struct file *file, char *buf, size_t count,
-			  loff_t *ppos)
-{
-	int n = state.len - state.ptr;
-	if (n > count)
-		n = count;
-	if (n <= 0)
-		return 0;
-	if (copy_to_user(buf, &state.buf[state.ptr], n))
-		return -EFAULT;
-	state.ptr += n;
-	return n;
-}
-
-
-static const struct file_operations state_fops =
-{
-	.owner =	THIS_MODULE,
-	.llseek =	sound_lseek,
-	.read =		state_read,
-	.open =		state_open,
-	.release =	state_release,
-};
-
-
-static void __init state_init(void)
-{
-	state_unit = register_sound_special(&state_fops, SND_DEV_STATUS);
-	if (state_unit < 0)
-		return;
-	state.busy = 0;
-}
-
-
-/*** Common stuff ********************************************************/
-
-static long long sound_lseek(struct file *file, long long offset, int orig)
-{
-	return -ESPIPE;
-}
-
-
-/*** Config & Setup **********************************************************/
-
-
-int __init tdm8xx_sound_init(void)
-{
-	int i, has_sound;
-	uint			dp_offset;
-	volatile uint		*sirp;
-	volatile cbd_t		*bdp;
-	volatile cpm8xx_t	*cp;
-	volatile smc_t		*sp;
-	volatile smc_uart_t	*up;
-	volatile immap_t	*immap;
-
-	has_sound = 0;
-
-	/* Program the SI/TSA to use TDMa, connected to SMC2, for 4 bytes.
-	*/
-	cp = cpmp;	/* Get pointer to Communication Processor */
-	immap = (immap_t *)IMAP_ADDR;	/* and to internal registers */
-
-	/* Set all TDMa control bits to zero.  This enables most features
-	 * we want.
-	 */
-	cp->cp_simode &= ~0x00000fff;
-
-	/* Enable common receive/transmit clock pins, use IDL format.
-	 * Sync on falling edge, transmit rising clock, receive falling
-	 * clock, delay 1 bit on both Tx and Rx.  Common Tx/Rx clocks and
-	 * sync.
-	 * Connect SMC2 to TSA.
-	 */
-	cp->cp_simode |= 0x80000141;
-
-	/* Configure port A pins for TDMa operation.
-	 * The RPX-Lite (MPC850/823) loses SMC2 when TDM is used.
-	 */
-	immap->im_ioport.iop_papar |= 0x01c0; /* Enable TDMa functions */
-	immap->im_ioport.iop_padir |= 0x00c0; /* Enable TDMa Tx/Rx */
-	immap->im_ioport.iop_padir &= ~0x0100; /* Enable L1RCLKa */
-
-	immap->im_ioport.iop_pcpar |= 0x0800; /* Enable L1RSYNCa */
-	immap->im_ioport.iop_pcdir &= ~0x0800;
-
-	/* Initialize the SI TDM routing table.  We use TDMa only.
-	 * The receive table and transmit table each have only one
-	 * entry, to capture/send four bytes after each frame pulse.
-	 * The 16-bit ram entry is 0000 0001 1000 1111. (SMC2)
-	 */
-	cp->cp_sigmr = 0;
-	sirp = (uint *)cp->cp_siram;
-
-	*sirp = 0x018f0000;		/* Receive entry */
-	sirp += 64;
-	*sirp = 0x018f0000;		/* Tramsmit entry */
-
-	/* Enable single TDMa routing.
-	*/
-	cp->cp_sigmr = 0x04;
-
-	/* Initialize the SMC for transparent operation.
-	*/
-	sp = &cpmp->cp_smc[1];
-	up = (smc_uart_t *)&cp->cp_dparam[PROFF_SMC2];
-
-	/* We need to allocate a transmit and receive buffer
-	 * descriptors from dual port ram.
-	 */
-	dp_addr = cpm_dpalloc(sizeof(cbd_t) * numReadBufs, 8);
-
-	/* Set the physical address of the host memory
-	 * buffers in the buffer descriptors, and the
-	 * virtual address for us to work with.
-	 */
-	bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
-	up->smc_rbase = dp_offset;
-	rx_cur = rx_base = (cbd_t *)bdp;
-
-	for (i=0; i<(numReadBufs-1); i++) {
-		bdp->cbd_bufaddr = 0;
-		bdp->cbd_datlen = 0;
-		bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT;
-		bdp++;
-	}
-	bdp->cbd_bufaddr = 0;
-	bdp->cbd_datlen = 0;
-	bdp->cbd_sc = BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT;
-
-	/* Now, do the same for the transmit buffers.
-	*/
-	dp_offset = cpm_dpalloc(sizeof(cbd_t) * numBufs, 8);
-
-	bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
-	up->smc_tbase = dp_offset;
-	tx_cur = tx_base = (cbd_t *)bdp;
-
-	for (i=0; i<(numBufs-1); i++) {
-		bdp->cbd_bufaddr = 0;
-		bdp->cbd_datlen = 0;
-		bdp->cbd_sc = BD_SC_INTRPT;
-		bdp++;
-	}
-	bdp->cbd_bufaddr = 0;
-	bdp->cbd_datlen = 0;
-	bdp->cbd_sc = (BD_SC_WRAP | BD_SC_INTRPT);
-
-	/* Set transparent SMC mode.
-	 * A few things are specific to our application.  The codec interface
-	 * is MSB first, hence the REVD selection.  The CD/CTS pulse are
-	 * used by the TSA to indicate the frame start to the SMC.
-	 */
-	up->smc_rfcr = SCC_EB;
-	up->smc_tfcr = SCC_EB;
-	up->smc_mrblr = readbufSize * 1024;
-
-	/* Set 16-bit reversed data, transparent mode.
-	*/
-	sp->smc_smcmr = smcr_mk_clen(15) |
-		SMCMR_SM_TRANS | SMCMR_REVD | SMCMR_BS;
-
-	/* Enable and clear events.
-	 * Because of FIFO delays, all we need is the receive interrupt
-	 * and we can process both the current receive and current
-	 * transmit interrupt within a few microseconds of the transmit.
-	 */
-	sp->smc_smce = 0xff;
-	sp->smc_smcm = SMCM_TXE | SMCM_TX | SMCM_RX;
-
-	/* Send the CPM an initialize command.
-	*/
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-				CPM_CR_INIT_TRX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-
-	sound.mach = mach_cs4218;
-	has_sound = 1;
-
-	/* Initialize beep stuff */
-	orig_mksound = kd_mksound;
-	kd_mksound = cs_mksound;
-	beep_buf = kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
-	if (beep_buf == NULL)
-		printk(KERN_WARNING "dmasound: no memory for "
-		       "beep buffer\n");
-
-	if (!has_sound)
-		return -ENODEV;
-
-	/* Initialize the software SPI.
-	*/
-	sw_spi_init();
-
-	/* Set up sound queue, /dev/audio and /dev/dsp. */
-
-	/* Set default settings. */
-	sq_init();
-
-	/* Set up /dev/sndstat. */
-	state_init();
-
-	/* Set up /dev/mixer. */
-	mixer_init();
-
-	if (!sound.mach.irqinit()) {
-		printk(KERN_ERR "DMA sound driver: Interrupt initialization failed\n");
-		return -ENODEV;
-	}
-#ifdef MODULE
-	irq_installed = 1;
-#endif
-
-	printk(KERN_INFO "DMA sound driver installed, using %d buffers of %dk.\n",
-	       numBufs, bufSize);
-
-	return 0;
-}
-
-/* Due to FIFOs and bit delays, the transmit interrupt occurs a few
- * microseconds ahead of the receive interrupt.
- * When we get an interrupt, we service the transmit first, then
- * check for a receive to prevent the overhead of returning through
- * the interrupt handler only to get back here right away during
- * full duplex operation.
- */
-static void
-cs4218_intr(void *dev_id)
-{
-	volatile smc_t	*sp;
-	volatile cpm8xx_t	*cp;
-
-	sp = &cpmp->cp_smc[1];
-
-	if (sp->smc_smce & SCCM_TX) {
-		sp->smc_smce = SCCM_TX;
-		cs4218_tdm_tx_intr((void *)sp);
-	}
-
-	if (sp->smc_smce & SCCM_RX) {
-		sp->smc_smce = SCCM_RX;
-		cs4218_tdm_rx_intr((void *)sp);
-	}
-
-	if (sp->smc_smce & SCCM_TXE) {
-		/* Transmit underrun.  This happens with the application
-		 * didn't keep up sending buffers.  We tell the SMC to
-		 * restart, which will cause it to poll the current (next)
-		 * BD.  If the user supplied data since this occurred,
-		 * we just start running again.  If they didn't, the SMC
-		 * will poll the descriptor until data is placed there.
-		 */
-		sp->smc_smce = SCCM_TXE;
-		cp = cpmp;	/* Get pointer to Communication Processor */
-		cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-					CPM_CR_RESTART_TX) | CPM_CR_FLG;
-		while (cp->cp_cpcr & CPM_CR_FLG);
-	}
-}
-
-
-#define MAXARGS		8	/* Should be sufficient for now */
-
-void __init dmasound_setup(char *str, int *ints)
-{
-	/* check the bootstrap parameter for "dmasound=" */
-
-	switch (ints[0]) {
-	case 3:
-		if ((ints[3] < 0) || (ints[3] > MAX_CATCH_RADIUS))
-			printk("dmasound_setup: invalid catch radius, using default = %d\n", catchRadius);
-		else
-			catchRadius = ints[3];
-		/* fall through */
-	case 2:
-		if (ints[1] < MIN_BUFFERS)
-			printk("dmasound_setup: invalid number of buffers, using default = %d\n", numBufs);
-		else
-			numBufs = ints[1];
-		if (ints[2] < MIN_BUFSIZE || ints[2] > MAX_BUFSIZE)
-			printk("dmasound_setup: invalid buffer size, using default = %d\n", bufSize);
-		else
-			bufSize = ints[2];
-		break;
-	case 0:
-		break;
-	default:
-		printk("dmasound_setup: invalid number of arguments\n");
-	}
-}
-
-/* Software SPI functions.
- * These are on Port B.
- */
-#define PB_SPICLK	((uint)0x00000002)
-#define PB_SPIMOSI	((uint)0x00000004)
-#define PB_SPIMISO	((uint)0x00000008)
-
-static
-void	sw_spi_init(void)
-{
-	volatile cpm8xx_t	*cp;
-	volatile uint		*hcsr4;
-
-	hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
-	cp = cpmp;	/* Get pointer to Communication Processor */
-
-	*hcsr4 &= ~HIOX_CSR4_AUDSPISEL;	/* Disable SPI select */
-
-	/* Make these Port B signals general purpose I/O.
-	 * First, make sure the clock is low.
-	 */
-	cp->cp_pbdat &= ~PB_SPICLK;
-	cp->cp_pbpar &= ~(PB_SPICLK | PB_SPIMOSI | PB_SPIMISO);
-
-	/* Clock and Master Output are outputs.
-	*/
-	cp->cp_pbdir |= (PB_SPICLK | PB_SPIMOSI);
-
-	/* Master Input.
-	*/
-	cp->cp_pbdir &= ~PB_SPIMISO;
-
-}
-
-/* Write the CS4218 control word out the SPI port.  While the
- * the control word is going out, the status word is arriving.
- */
-static
-uint	cs4218_ctl_write(uint ctlreg)
-{
-	uint	status;
-
-	sw_spi_io((u_char *)&ctlreg, (u_char *)&status, 4);
-
-	/* Shadow the control register.....I guess we could do
-	 * the same for the status, but for now we just return it
-	 * and let the caller decide.
-	 */
-	cs4218_control = ctlreg;
-	return status;
-}
-
-static
-void	sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt)
-{
-	int	bits, i;
-	u_char	outbyte, inbyte;
-	volatile cpm8xx_t	*cp;
-	volatile uint		*hcsr4;
-
-	hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
-	cp = cpmp;	/* Get pointer to Communication Processor */
-
-	/* The timing on the bus is pretty slow.  Code inefficiency
-	 * and eieio() is our friend here :-).
-	 */
-	cp->cp_pbdat &= ~PB_SPICLK;
-	*hcsr4 |= HIOX_CSR4_AUDSPISEL;	/* Enable SPI select */
-	eieio();
-
-	/* Clock in/out the bytes.  Data is valid on the falling edge
-	 * of the clock.  Data is MSB first.
-	 */
-	for (i=0; i<bcnt; i++) {
-		outbyte = *obuf++;
-		inbyte = 0;
-		for (bits=0; bits<8; bits++) {
-			eieio();
-			cp->cp_pbdat |= PB_SPICLK;
-			eieio();
-			if (outbyte & 0x80)
-				cp->cp_pbdat |= PB_SPIMOSI;
-			else
-				cp->cp_pbdat &= ~PB_SPIMOSI;
-			eieio();
-			cp->cp_pbdat &= ~PB_SPICLK;
-			eieio();
-			outbyte <<= 1;
-			inbyte <<= 1;
-			if (cp->cp_pbdat & PB_SPIMISO)
-				inbyte |= 1;
-		}
-		*ibuf++ = inbyte;
-	}
-
-	*hcsr4 &= ~HIOX_CSR4_AUDSPISEL;	/* Disable SPI select */
-	eieio();
-}
-
-void cleanup_module(void)
-{
-	if (irq_installed) {
-		sound_silence();
-#ifdef MODULE
-		sound.mach.irqcleanup();
-#endif
-	}
-
-	sq_release_read_buffers();
-	sq_release_buffers();
-
-	if (mixer_unit >= 0)
-		unregister_sound_mixer(mixer_unit);
-	if (state_unit >= 0)
-		unregister_sound_special(state_unit);
-	if (sq_unit >= 0)
-		unregister_sound_dsp(sq_unit);
-}
-
-module_init(tdm8xx_sound_init);
-module_exit(cleanup_module);
-
-

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [RFC: 2.6 patch] powerpc: remove the unused HTDMSOUND driver
  2007-03-25 14:58 [RFC: 2.6 patch] powerpc: remove the unused HTDMSOUND driver Adrian Bunk
@ 2007-03-26 23:52 ` Marcelo Tosatti
  2007-03-27 20:13   ` Dan Malek
  0 siblings, 1 reply; 4+ messages in thread
From: Marcelo Tosatti @ 2007-03-26 23:52 UTC (permalink / raw)
  To: Adrian Bunk, Dan Malek
  Cc: Andrew Morton, marcelo, linuxppc-embedded, paulus, linuxppc-dev,
	linux-kernel

Dan,

Shall this driver be removed?

On Sun, Mar 25, 2007 at 04:58:38PM +0200, Adrian Bunk wrote:
> Recently, someone fixed a syntax error in the HTDMSOUND driver 
> introduced 4 years ago.
> 
> Unfortunately not by trying to compile this driver for his hardware but 
> by code inspection - which seems to be a strong indication that there 
> are no users left for this OSS sound driver.
> 
> This patch therefore removes it.
> 
> Signed-off-by: Adrian Bunk <bunk@stusta.de>
> 
> ---
> 
> This patch was already sent on:
> - 7 Mar 2007
> 
>  arch/ppc/8xx_io/Kconfig         |    4 
>  arch/ppc/8xx_io/Makefile        |    1 
>  arch/ppc/8xx_io/cs4218.h        |  166 -
>  arch/ppc/8xx_io/cs4218_tdm.c    | 2833 --------------------------------
>  arch/ppc/platforms/rpxclassic.h |    4 
>  arch/ppc/platforms/rpxhiox.h    |   41 
>  arch/ppc/platforms/rpxlite.h    |    4 
>  arch/ppc/syslib/m8xx_setup.c    |    2 
>  8 files changed, 1 insertion(+), 3054 deletions(-)
> 
> --- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig.old	2007-03-06 06:47:04.000000000 +0100
> +++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig	2007-03-06 06:47:16.000000000 +0100
> @@ -74,10 +74,6 @@
>  	  Allocate large buffers for MPC8xx Ethernet. Increases throughput
>  	  and decreases the likelihood of dropped packets, but costs memory.
>  
> -config HTDMSOUND
> -	bool "Embedded Planet HIOX Audio"
> -	depends on SOUND=y
> -
>  # This doesn't really belong here, but it is convenient to ask
>  # 8xx specific questions.
>  comment "Generic MPC8xx Options"
> --- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile.old	2007-03-06 06:47:23.000000000 +0100
> +++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile	2007-03-06 06:47:30.000000000 +0100
> @@ -7,4 +7,3 @@
>  obj-$(CONFIG_FEC_ENET)	+= fec.o
>  obj-$(CONFIG_SCC_ENET)	+= enet.o
>  obj-$(CONFIG_UCODE_PATCH) += micropatch.o
> -obj-$(CONFIG_HTDMSOUND) += cs4218_tdm.o
> --- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h.old	2007-03-06 06:49:05.000000000 +0100
> +++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h	2007-03-06 06:49:41.000000000 +0100
> @@ -57,10 +57,6 @@
>  #define BCSR1_PCVCTL6          ((uint)0x00020000)
>  #define BCSR1_PCVCTL7          ((uint)0x00010000)
>  
> -#if defined(CONFIG_HTDMSOUND)
> -#include <platforms/rpxhiox.h>
> -#endif
> -
>  /* define IO_BASE for pcmcia */
>  #define _IO_BASE 0x80000000
>  #define _IO_BASE_SIZE 0x1000
> --- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h.old	2007-03-06 06:49:51.000000000 +0100
> +++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h	2007-03-06 06:49:56.000000000 +0100
> @@ -69,10 +69,6 @@
>  #define BCSR2_QSPACESEL		((uint)0x00004000)
>  #define BCSR2_FETHLEDMODE	((uint)0x00000800)	/* CLLF */
>  
> -#if defined(CONFIG_HTDMSOUND)
> -#include <platforms/rpxhiox.h>
> -#endif
> -
>  /* define IO_BASE for pcmcia, CLLF only */
>  #if !defined(CONFIG_PCI)
>  #define _IO_BASE 0x80000000
> --- linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c.old	2007-03-06 06:50:43.000000000 +0100
> +++ linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c	2007-03-06 06:50:59.000000000 +0100
> @@ -413,7 +413,7 @@
>  	io_block_mapping(_IO_BASE,_IO_BASE,_IO_BASE_SIZE, _PAGE_IO);
>  #endif
>  #endif
> -#if defined(CONFIG_HTDMSOUND) || defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
> +#if defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
>  	io_block_mapping(HIOX_CSR_ADDR, HIOX_CSR_ADDR, HIOX_CSR_SIZE, _PAGE_IO);
>  #endif
>  #ifdef CONFIG_FADS
> --- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxhiox.h	2007-02-04 19:44:54.000000000 +0100
> +++ /dev/null	2006-09-19 00:45:31.000000000 +0200
> @@ -1,41 +0,0 @@
> -/*
> - * The Embedded Planet HIOX expansion card definitions.
> - * There were a few different versions of these cards, but only
> - * the one that escaped real production is defined here.
> - *
> - * Copyright (c) 2000 Dan Malek (dmalek@jlc.net)
> - */
> -#ifndef __MACH_RPX_HIOX_DEFS
> -#define __MACH_RPX_HIOX_DEFS
> -
> -#define HIOX_CSR_ADDR		((uint)0xfac00000)
> -#define HIOX_CSR_SIZE		((uint)(4 * 1024))
> -#define HIOX_CSR0_ADDR		HIOX_CSR_ADDR
> -#define HIOX_CSR4_ADDR		((uint)0xfac00004)
> -
> -#define HIOX_CSR0_DEFAULT	((uint)0x380f3c00)
> -#define HIOX_CSR0_ENSCC2	((uint)0x80000000)
> -#define HIOX_CSR0_ENSMC2	((uint)0x04000000)
> -#define HIOX_CSR0_ENVDOCLK	((uint)0x02000000)
> -#define HIOX_CSR0_VDORST_HL	((uint)0x01000000)
> -#define HIOX_CSR0_RS232SEL	((uint)0x0000c000)
> -#define HIOX_CSR0_SCC3SEL	((uint)0x0000c000)
> -#define HIOX_CSR0_SMC1SEL	((uint)0x00008000)
> -#define HIOX_CSR0_SCC1SEL	((uint)0x00004000)
> -#define HIOX_CSR0_ENTOUCH	((uint)0x00000080)
> -#define HIOX_CSR0_PDOWN100	((uint)0x00000060)
> -#define HIOX_CSR0_PDOWN10	((uint)0x00000040)
> -#define HIOX_CSR0_PDOWN1	((uint)0x00000020)
> -#define HIOX_CSR0_TSELSPI	((uint)0x00000010)
> -#define HIOX_CSR0_TIRQSTAT	((uint)0x00000008)
> -#define HIOX_CSR4_DEFAULT	((uint)0x00000000)
> -#define HIOX_CSR4_ENTIRQ2	((uint)0x20000000)
> -#define HIOX_CSR4_ENTIRQ3	((uint)0x10000000)
> -#define HIOX_CSR4_ENAUDIO	((uint)0x00000080)
> -#define HIOX_CSR4_RSTAUDIO	((uint)0x00000040)	/* 0 == reset */
> -#define HIOX_CSR4_AUDCLKHI	((uint)0x00000020)
> -#define HIOX_CSR4_AUDSPISEL	((uint)0x00000010)
> -#define HIOX_CSR4_AUDIRQSTAT	((uint)0x00000008)
> -#define HIOX_CSR4_AUDCLKSEL	((uint)0x00000007)
> -
> -#endif
> --- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218.h	2007-02-04 19:44:54.000000000 +0100
> +++ /dev/null	2006-09-19 00:45:31.000000000 +0200
> @@ -1,166 +0,0 @@
> -#ifndef _cs4218_h_
> -/*
> - *  Hacked version of linux/drivers/sound/dmasound/dmasound.h
> - *
> - *
> - *  Minor numbers for the sound driver.
> - *
> - *  Unfortunately Creative called the codec chip of SB as a DSP. For this
> - *  reason the /dev/dsp is reserved for digitized audio use. There is a
> - *  device for true DSP processors but it will be called something else.
> - *  In v3.0 it's /dev/sndproc but this could be a temporary solution.
> - */
> -#define _cs4218_h_
> -
> -#include <linux/types.h>
> -
> -#define SND_NDEVS	256	/* Number of supported devices */
> -#define SND_DEV_CTL	0	/* Control port /dev/mixer */
> -#define SND_DEV_SEQ	1	/* Sequencer output /dev/sequencer (FM
> -				   synthesizer and MIDI output) */
> -#define SND_DEV_MIDIN	2	/* Raw midi access */
> -#define SND_DEV_DSP	3	/* Digitized voice /dev/dsp */
> -#define SND_DEV_AUDIO	4	/* Sparc compatible /dev/audio */
> -#define SND_DEV_DSP16	5	/* Like /dev/dsp but 16 bits/sample */
> -#define SND_DEV_STATUS	6	/* /dev/sndstat */
> -/* #7 not in use now. Was in 2.4. Free for use after v3.0. */
> -#define SND_DEV_SEQ2	8	/* /dev/sequencer, level 2 interface */
> -#define SND_DEV_SNDPROC 9	/* /dev/sndproc for programmable devices */
> -#define SND_DEV_PSS	SND_DEV_SNDPROC
> -
> -/* switch on various prinks */
> -#define DEBUG_DMASOUND 1
> -
> -#define MAX_AUDIO_DEV	5
> -#define MAX_MIXER_DEV	4
> -#define MAX_SYNTH_DEV	3
> -#define MAX_MIDI_DEV	6
> -#define MAX_TIMER_DEV	3
> -
> -#define MAX_CATCH_RADIUS	10
> -
> -#define le2be16(x)	(((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
> -#define le2be16dbl(x)	(((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
> -
> -#define IOCTL_IN(arg, ret) \
> -	do { int error = get_user(ret, (int *)(arg)); \
> -		if (error) return error; \
> -	} while (0)
> -#define IOCTL_OUT(arg, ret)	ioctl_return((int *)(arg), ret)
> -
> -static inline int ioctl_return(int *addr, int value)
> -{
> -	return value < 0 ? value : put_user(value, addr);
> -}
> -
> -#define HAS_RECORD
> -
> -    /*
> -     *  Initialization
> -     */
> -
> -/* description of the set-up applies to either hard or soft settings */
> -
> -typedef struct {
> -    int format;		/* AFMT_* */
> -    int stereo;		/* 0 = mono, 1 = stereo */
> -    int size;		/* 8/16 bit*/
> -    int speed;		/* speed */
> -} SETTINGS;
> -
> -    /*
> -     *  Machine definitions
> -     */
> -
> -typedef struct {
> -    const char *name;
> -    const char *name2;
> -    void (*open)(void);
> -    void (*release)(void);
> -    void *(*dma_alloc)(unsigned int, gfp_t);
> -    void (*dma_free)(void *, unsigned int);
> -    int (*irqinit)(void);
> -#ifdef MODULE
> -    void (*irqcleanup)(void);
> -#endif
> -    void (*init)(void);
> -    void (*silence)(void);
> -    int (*setFormat)(int);
> -    int (*setVolume)(int);
> -    int (*setBass)(int);
> -    int (*setTreble)(int);
> -    int (*setGain)(int);
> -    void (*play)(void);
> -    void (*record)(void);		/* optional */
> -    void (*mixer_init)(void);		/* optional */
> -    int (*mixer_ioctl)(u_int, u_long);	/* optional */
> -    int (*write_sq_setup)(void);	/* optional */
> -    int (*read_sq_setup)(void);		/* optional */
> -    int (*sq_open)(mode_t);		/* optional */
> -    int (*state_info)(char *, size_t);	/* optional */
> -    void (*abort_read)(void);		/* optional */
> -    int min_dsp_speed;
> -    int max_dsp_speed;
> -    int version ;
> -    int hardware_afmts ;		/* OSS says we only return h'ware info */
> -					/* when queried via SNDCTL_DSP_GETFMTS */
> -    int capabilities ;		/* low-level reply to SNDCTL_DSP_GETCAPS */
> -    SETTINGS default_hard ;	/* open() or init() should set something valid */
> -    SETTINGS default_soft ;	/* you can make it look like old OSS, if you want to */
> -} MACHINE;
> -
> -    /*
> -     *  Low level stuff
> -     */
> -
> -typedef struct {
> -    ssize_t (*ct_ulaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -    ssize_t (*ct_alaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -    ssize_t (*ct_s8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -    ssize_t (*ct_u8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -    ssize_t (*ct_s16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -    ssize_t (*ct_u16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -    ssize_t (*ct_s16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -    ssize_t (*ct_u16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
> -} TRANS;
> -
> -
> -    /*
> -     * Sound queue stuff, the heart of the driver
> -     */
> -
> -struct sound_queue {
> -    /* buffers allocated for this queue */
> -    int numBufs;		/* real limits on what the user can have */
> -    int bufSize;		/* in bytes */
> -    char **buffers;
> -
> -    /* current parameters */
> -    int locked ;		/* params cannot be modified when != 0 */
> -    int user_frags ;		/* user requests this many */
> -    int user_frag_size ;	/* of this size */
> -    int max_count;		/* actual # fragments <= numBufs */
> -    int block_size;		/* internal block size in bytes */
> -    int max_active;		/* in-use fragments <= max_count */
> -
> -    /* it shouldn't be necessary to declare any of these volatile */
> -    int front, rear, count;
> -    int rear_size;
> -    /*
> -     *	The use of the playing field depends on the hardware
> -     *
> -     *	Atari, PMac: The number of frames that are loaded/playing
> -     *
> -     *	Amiga: Bit 0 is set: a frame is loaded
> -     *	       Bit 1 is set: a frame is playing
> -     */
> -    int active;
> -    wait_queue_head_t action_queue, open_queue, sync_queue;
> -    int open_mode;
> -    int busy, syncing, xruns, died;
> -};
> -
> -#define SLEEP(queue)		interruptible_sleep_on_timeout(&queue, HZ)
> -#define WAKE_UP(queue)		(wake_up_interruptible(&queue))
> -
> -#endif /* _cs4218_h_ */
> --- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218_tdm.c	2007-03-02 20:14:59.000000000 +0100
> +++ /dev/null	2006-09-19 00:45:31.000000000 +0200
> @@ -1,2833 +0,0 @@
> -
> -/* This is a modified version of linux/drivers/sound/dmasound.c to
> - * support the CS4218 codec on the 8xx TDM port.  Thanks to everyone
> - * that contributed to the dmasound software (which includes me :-).
> - *
> - * The CS4218 is configured in Mode 4, sub-mode 0.  This provides
> - * left/right data only on the TDM port, as a 32-bit word, per frame
> - * pulse.  The control of the CS4218 is provided by some other means,
> - * like the SPI port.
> - * Dan Malek (dmalek@jlc.net)
> - */
> -
> -#include <linux/module.h>
> -#include <linux/sched.h>
> -#include <linux/timer.h>
> -#include <linux/major.h>
> -#include <linux/fcntl.h>
> -#include <linux/errno.h>
> -#include <linux/mm.h>
> -#include <linux/slab.h>
> -#include <linux/sound.h>
> -#include <linux/init.h>
> -#include <linux/delay.h>
> -
> -#include <asm/system.h>
> -#include <asm/irq.h>
> -#include <asm/pgtable.h>
> -#include <asm/uaccess.h>
> -#include <asm/io.h>
> -
> -/* Should probably do something different with this path name.....
> - * Actually, I should just stop using it...
> - */
> -#include "cs4218.h"
> -#include <linux/soundcard.h>
> -
> -#include <asm/mpc8xx.h>
> -#include <asm/8xx_immap.h>
> -#include <asm/commproc.h>
> -
> -#define DMASND_CS4218		5
> -
> -#define MAX_CATCH_RADIUS	10
> -#define MIN_BUFFERS		4
> -#define MIN_BUFSIZE 		4
> -#define MAX_BUFSIZE		128
> -
> -#define HAS_8BIT_TABLES
> -
> -static int sq_unit = -1;
> -static int mixer_unit = -1;
> -static int state_unit = -1;
> -static int irq_installed = 0;
> -static char **sound_buffers = NULL;
> -static char **sound_read_buffers = NULL;
> -
> -static DEFINE_SPINLOCK(cs4218_lock);
> -
> -/* Local copies of things we put in the control register.  Output
> - * volume, like most codecs is really attenuation.
> - */
> -static int cs4218_rate_index;
> -
> -/*
> - * Stuff for outputting a beep.  The values range from -327 to +327
> - * so we can multiply by an amplitude in the range 0..100 to get a
> - * signed short value to put in the output buffer.
> - */
> -static short beep_wform[256] = {
> -	0,	40,	79,	117,	153,	187,	218,	245,
> -	269,	288,	304,	316,	323,	327,	327,	324,
> -	318,	310,	299,	288,	275,	262,	249,	236,
> -	224,	213,	204,	196,	190,	186,	183,	182,
> -	182,	183,	186,	189,	192,	196,	200,	203,
> -	206,	208,	209,	209,	209,	207,	204,	201,
> -	197,	193,	188,	183,	179,	174,	170,	166,
> -	163,	161,	160,	159,	159,	160,	161,	162,
> -	164,	166,	168,	169,	171,	171,	171,	170,
> -	169,	167,	163,	159,	155,	150,	144,	139,
> -	133,	128,	122,	117,	113,	110,	107,	105,
> -	103,	103,	103,	103,	104,	104,	105,	105,
> -	105,	103,	101,	97,	92,	86,	78,	68,
> -	58,	45,	32,	18,	3,	-11,	-26,	-41,
> -	-55,	-68,	-79,	-88,	-95,	-100,	-102,	-102,
> -	-99,	-93,	-85,	-75,	-62,	-48,	-33,	-16,
> -	0,	16,	33,	48,	62,	75,	85,	93,
> -	99,	102,	102,	100,	95,	88,	79,	68,
> -	55,	41,	26,	11,	-3,	-18,	-32,	-45,
> -	-58,	-68,	-78,	-86,	-92,	-97,	-101,	-103,
> -	-105,	-105,	-105,	-104,	-104,	-103,	-103,	-103,
> -	-103,	-105,	-107,	-110,	-113,	-117,	-122,	-128,
> -	-133,	-139,	-144,	-150,	-155,	-159,	-163,	-167,
> -	-169,	-170,	-171,	-171,	-171,	-169,	-168,	-166,
> -	-164,	-162,	-161,	-160,	-159,	-159,	-160,	-161,
> -	-163,	-166,	-170,	-174,	-179,	-183,	-188,	-193,
> -	-197,	-201,	-204,	-207,	-209,	-209,	-209,	-208,
> -	-206,	-203,	-200,	-196,	-192,	-189,	-186,	-183,
> -	-182,	-182,	-183,	-186,	-190,	-196,	-204,	-213,
> -	-224,	-236,	-249,	-262,	-275,	-288,	-299,	-310,
> -	-318,	-324,	-327,	-327,	-323,	-316,	-304,	-288,
> -	-269,	-245,	-218,	-187,	-153,	-117,	-79,	-40,
> -};
> -
> -#define BEEP_SPEED	5	/* 22050 Hz sample rate */
> -#define BEEP_BUFLEN	512
> -#define BEEP_VOLUME	15	/* 0 - 100 */
> -
> -static int beep_volume = BEEP_VOLUME;
> -static int beep_playing = 0;
> -static int beep_state = 0;
> -static short *beep_buf;
> -static void (*orig_mksound)(unsigned int, unsigned int);
> -
> -/* This is found someplace else......I guess in the keyboard driver
> - * we don't include.
> - */
> -static void (*kd_mksound)(unsigned int, unsigned int);
> -
> -static int catchRadius = 0;
> -static int numBufs = 4, bufSize = 32;
> -static int numReadBufs = 4, readbufSize = 32;
> -
> -
> -/* TDM/Serial transmit and receive buffer descriptors.
> -*/
> -static volatile cbd_t	*rx_base, *rx_cur, *tx_base, *tx_cur;
> -
> -module_param(catchRadius, int, 0);
> -module_param(numBufs, int, 0);
> -module_param(bufSize, int, 0);
> -module_param(numreadBufs, int, 0);
> -module_param(readbufSize, int, 0);
> -
> -#define arraysize(x)	(sizeof(x)/sizeof(*(x)))
> -#define le2be16(x)	(((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
> -#define le2be16dbl(x)	(((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
> -
> -#define IOCTL_IN(arg, ret) \
> -	do { int error = get_user(ret, (int *)(arg)); \
> -		if (error) return error; \
> -	} while (0)
> -#define IOCTL_OUT(arg, ret)	ioctl_return((int *)(arg), ret)
> -
> -/* CS4218 serial port control in mode 4.
> -*/
> -#define CS_INTMASK	((uint)0x40000000)
> -#define CS_DO1		((uint)0x20000000)
> -#define CS_LATTEN	((uint)0x1f000000)
> -#define CS_RATTEN	((uint)0x00f80000)
> -#define CS_MUTE		((uint)0x00040000)
> -#define CS_ISL		((uint)0x00020000)
> -#define CS_ISR		((uint)0x00010000)
> -#define CS_LGAIN	((uint)0x0000f000)
> -#define CS_RGAIN	((uint)0x00000f00)
> -
> -#define CS_LATTEN_SET(X)	(((X) & 0x1f) << 24)
> -#define CS_RATTEN_SET(X)	(((X) & 0x1f) << 19)
> -#define CS_LGAIN_SET(X)		(((X) & 0x0f) << 12)
> -#define CS_RGAIN_SET(X)		(((X) & 0x0f) << 8)
> -
> -#define CS_LATTEN_GET(X)	(((X) >> 24) & 0x1f)
> -#define CS_RATTEN_GET(X)	(((X) >> 19) & 0x1f)
> -#define CS_LGAIN_GET(X)		(((X) >> 12) & 0x0f)
> -#define CS_RGAIN_GET(X)		(((X) >> 8) & 0x0f)
> -
> -/* The control register is effectively write only.  We have to keep a copy
> - * of what we write.
> - */
> -static	uint	cs4218_control;
> -
> -/* A place to store expanding information.
> -*/
> -static int	expand_bal;
> -static int	expand_data;
> -
> -/* Since I can't make the microcode patch work for the SPI, I just
> - * clock the bits using software.
> - */
> -static	void	sw_spi_init(void);
> -static	void	sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt);
> -static	uint	cs4218_ctl_write(uint ctlreg);
> -
> -/*** Some low level helpers **************************************************/
> -
> -/* 16 bit mu-law */
> -
> -static short ulaw2dma16[] = {
> -	-32124,	-31100,	-30076,	-29052,	-28028,	-27004,	-25980,	-24956,
> -	-23932,	-22908,	-21884,	-20860,	-19836,	-18812,	-17788,	-16764,
> -	-15996,	-15484,	-14972,	-14460,	-13948,	-13436,	-12924,	-12412,
> -	-11900,	-11388,	-10876,	-10364,	-9852,	-9340,	-8828,	-8316,
> -	-7932,	-7676,	-7420,	-7164,	-6908,	-6652,	-6396,	-6140,
> -	-5884,	-5628,	-5372,	-5116,	-4860,	-4604,	-4348,	-4092,
> -	-3900,	-3772,	-3644,	-3516,	-3388,	-3260,	-3132,	-3004,
> -	-2876,	-2748,	-2620,	-2492,	-2364,	-2236,	-2108,	-1980,
> -	-1884,	-1820,	-1756,	-1692,	-1628,	-1564,	-1500,	-1436,
> -	-1372,	-1308,	-1244,	-1180,	-1116,	-1052,	-988,	-924,
> -	-876,	-844,	-812,	-780,	-748,	-716,	-684,	-652,
> -	-620,	-588,	-556,	-524,	-492,	-460,	-428,	-396,
> -	-372,	-356,	-340,	-324,	-308,	-292,	-276,	-260,
> -	-244,	-228,	-212,	-196,	-180,	-164,	-148,	-132,
> -	-120,	-112,	-104,	-96,	-88,	-80,	-72,	-64,
> -	-56,	-48,	-40,	-32,	-24,	-16,	-8,	0,
> -	32124,	31100,	30076,	29052,	28028,	27004,	25980,	24956,
> -	23932,	22908,	21884,	20860,	19836,	18812,	17788,	16764,
> -	15996,	15484,	14972,	14460,	13948,	13436,	12924,	12412,
> -	11900,	11388,	10876,	10364,	9852,	9340,	8828,	8316,
> -	7932,	7676,	7420,	7164,	6908,	6652,	6396,	6140,
> -	5884,	5628,	5372,	5116,	4860,	4604,	4348,	4092,
> -	3900,	3772,	3644,	3516,	3388,	3260,	3132,	3004,
> -	2876,	2748,	2620,	2492,	2364,	2236,	2108,	1980,
> -	1884,	1820,	1756,	1692,	1628,	1564,	1500,	1436,
> -	1372,	1308,	1244,	1180,	1116,	1052,	988,	924,
> -	876,	844,	812,	780,	748,	716,	684,	652,
> -	620,	588,	556,	524,	492,	460,	428,	396,
> -	372,	356,	340,	324,	308,	292,	276,	260,
> -	244,	228,	212,	196,	180,	164,	148,	132,
> -	120,	112,	104,	96,	88,	80,	72,	64,
> -	56,	48,	40,	32,	24,	16,	8,	0,
> -};
> -
> -/* 16 bit A-law */
> -
> -static short alaw2dma16[] = {
> -	-5504,	-5248,	-6016,	-5760,	-4480,	-4224,	-4992,	-4736,
> -	-7552,	-7296,	-8064,	-7808,	-6528,	-6272,	-7040,	-6784,
> -	-2752,	-2624,	-3008,	-2880,	-2240,	-2112,	-2496,	-2368,
> -	-3776,	-3648,	-4032,	-3904,	-3264,	-3136,	-3520,	-3392,
> -	-22016,	-20992,	-24064,	-23040,	-17920,	-16896,	-19968,	-18944,
> -	-30208,	-29184,	-32256,	-31232,	-26112,	-25088,	-28160,	-27136,
> -	-11008,	-10496,	-12032,	-11520,	-8960,	-8448,	-9984,	-9472,
> -	-15104,	-14592,	-16128,	-15616,	-13056,	-12544,	-14080,	-13568,
> -	-344,	-328,	-376,	-360,	-280,	-264,	-312,	-296,
> -	-472,	-456,	-504,	-488,	-408,	-392,	-440,	-424,
> -	-88,	-72,	-120,	-104,	-24,	-8,	-56,	-40,
> -	-216,	-200,	-248,	-232,	-152,	-136,	-184,	-168,
> -	-1376,	-1312,	-1504,	-1440,	-1120,	-1056,	-1248,	-1184,
> -	-1888,	-1824,	-2016,	-1952,	-1632,	-1568,	-1760,	-1696,
> -	-688,	-656,	-752,	-720,	-560,	-528,	-624,	-592,
> -	-944,	-912,	-1008,	-976,	-816,	-784,	-880,	-848,
> -	5504,	5248,	6016,	5760,	4480,	4224,	4992,	4736,
> -	7552,	7296,	8064,	7808,	6528,	6272,	7040,	6784,
> -	2752,	2624,	3008,	2880,	2240,	2112,	2496,	2368,
> -	3776,	3648,	4032,	3904,	3264,	3136,	3520,	3392,
> -	22016,	20992,	24064,	23040,	17920,	16896,	19968,	18944,
> -	30208,	29184,	32256,	31232,	26112,	25088,	28160,	27136,
> -	11008,	10496,	12032,	11520,	8960,	8448,	9984,	9472,
> -	15104,	14592,	16128,	15616,	13056,	12544,	14080,	13568,
> -	344,	328,	376,	360,	280,	264,	312,	296,
> -	472,	456,	504,	488,	408,	392,	440,	424,
> -	88,	72,	120,	104,	24,	8,	56,	40,
> -	216,	200,	248,	232,	152,	136,	184,	168,
> -	1376,	1312,	1504,	1440,	1120,	1056,	1248,	1184,
> -	1888,	1824,	2016,	1952,	1632,	1568,	1760,	1696,
> -	688,	656,	752,	720,	560,	528,	624,	592,
> -	944,	912,	1008,	976,	816,	784,	880,	848,
> -};
> -
> -
> -/*** Translations ************************************************************/
> -
> -
> -static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft);
> -static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
> -			  u_char frame[], ssize_t *frameUsed,
> -			  ssize_t frameLeft);
> -static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
> -			  u_char frame[], ssize_t *frameUsed,
> -			  ssize_t frameLeft);
> -static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft);
> -static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft);
> -static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
> -			    u_char frame[], ssize_t *frameUsed,
> -			    ssize_t frameLeft);
> -static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft);
> -static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft);
> -static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
> -			    u_char frame[], ssize_t *frameUsed,
> -			    ssize_t frameLeft);
> -static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
> -			    u_char frame[], ssize_t *frameUsed,
> -			    ssize_t frameLeft);
> -static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft);
> -static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft);
> -
> -
> -/*** Low level stuff *********************************************************/
> -
> -struct cs_sound_settings {
> -	MACHINE mach;		/* machine dependent things */
> -	SETTINGS hard;		/* hardware settings */
> -	SETTINGS soft;		/* software settings */
> -	SETTINGS dsp;		/* /dev/dsp default settings */
> -	TRANS *trans_write;	/* supported translations for playback */
> -	TRANS *trans_read;	/* supported translations for record */
> -	int volume_left;	/* volume (range is machine dependent) */
> -	int volume_right;
> -	int bass;		/* tone (range is machine dependent) */
> -	int treble;
> -	int gain;
> -	int minDev;		/* minor device number currently open */
> -};
> -
> -static struct cs_sound_settings sound;
> -
> -static void *CS_Alloc(unsigned int size, gfp_t flags);
> -static void CS_Free(void *ptr, unsigned int size);
> -static int CS_IrqInit(void);
> -#ifdef MODULE
> -static void CS_IrqCleanup(void);
> -#endif /* MODULE */
> -static void CS_Silence(void);
> -static void CS_Init(void);
> -static void CS_Play(void);
> -static void CS_Record(void);
> -static int CS_SetFormat(int format);
> -static int CS_SetVolume(int volume);
> -static void cs4218_tdm_tx_intr(void *devid);
> -static void cs4218_tdm_rx_intr(void *devid);
> -static void cs4218_intr(void *devid);
> -static int cs_get_volume(uint reg);
> -static int cs_volume_setter(int volume, int mute);
> -static int cs_get_gain(uint reg);
> -static int cs_set_gain(int gain);
> -static void cs_mksound(unsigned int hz, unsigned int ticks);
> -static void cs_nosound(unsigned long xx);
> -
> -/*** Mid level stuff *********************************************************/
> -
> -
> -static void sound_silence(void);
> -static void sound_init(void);
> -static int sound_set_format(int format);
> -static int sound_set_speed(int speed);
> -static int sound_set_stereo(int stereo);
> -static int sound_set_volume(int volume);
> -
> -static ssize_t sound_copy_translate(const u_char *userPtr,
> -				    size_t userCount,
> -				    u_char frame[], ssize_t *frameUsed,
> -				    ssize_t frameLeft);
> -static ssize_t sound_copy_translate_read(const u_char *userPtr,
> -				    size_t userCount,
> -				    u_char frame[], ssize_t *frameUsed,
> -				    ssize_t frameLeft);
> -
> -
> -/*
> - * /dev/mixer abstraction
> - */
> -
> -struct sound_mixer {
> -    int busy;
> -    int modify_counter;
> -};
> -
> -static struct sound_mixer mixer;
> -
> -static struct sound_queue sq;
> -static struct sound_queue read_sq;
> -
> -#define sq_block_address(i)	(sq.buffers[i])
> -#define SIGNAL_RECEIVED	(signal_pending(current))
> -#define NON_BLOCKING(open_mode)	(open_mode & O_NONBLOCK)
> -#define ONE_SECOND	HZ	/* in jiffies (100ths of a second) */
> -#define NO_TIME_LIMIT	0xffffffff
> -
> -/*
> - * /dev/sndstat
> - */
> -
> -struct sound_state {
> -	int busy;
> -	char buf[512];
> -	int len, ptr;
> -};
> -
> -static struct sound_state state;
> -
> -/*** Common stuff ********************************************************/
> -
> -static long long sound_lseek(struct file *file, long long offset, int orig);
> -
> -/*** Config & Setup **********************************************************/
> -
> -void dmasound_setup(char *str, int *ints);
> -
> -/*** Translations ************************************************************/
> -
> -
> -/* ++TeSche: radically changed for new expanding purposes...
> - *
> - * These two routines now deal with copying/expanding/translating the samples
> - * from user space into our buffer at the right frequency. They take care about
> - * how much data there's actually to read, how much buffer space there is and
> - * to convert samples into the right frequency/encoding. They will only work on
> - * complete samples so it may happen they leave some bytes in the input stream
> - * if the user didn't write a multiple of the current sample size. They both
> - * return the number of bytes they've used from both streams so you may detect
> - * such a situation. Luckily all programs should be able to cope with that.
> - *
> - * I think I've optimized anything as far as one can do in plain C, all
> - * variables should fit in registers and the loops are really short. There's
> - * one loop for every possible situation. Writing a more generalized and thus
> - * parameterized loop would only produce slower code. Feel free to optimize
> - * this in assembler if you like. :)
> - *
> - * I think these routines belong here because they're not yet really hardware
> - * independent, especially the fact that the Falcon can play 16bit samples
> - * only in stereo is hardcoded in both of them!
> - *
> - * ++geert: split in even more functions (one per format)
> - */
> -
> -static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft)
> -{
> -	short *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16;
> -	ssize_t count, used;
> -	short *p = (short *) &frame[*frameUsed];
> -	int val, stereo = sound.soft.stereo;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	used = count = min(userCount, frameLeft);
> -	while (count > 0) {
> -		u_char data;
> -		if (get_user(data, userPtr++))
> -			return -EFAULT;
> -		val = table[data];
> -		*p++ = val;
> -		if (stereo) {
> -			if (get_user(data, userPtr++))
> -				return -EFAULT;
> -			val = table[data];
> -		}
> -		*p++ = val;
> -		count--;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 2: used;
> -}
> -
> -
> -static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
> -			  u_char frame[], ssize_t *frameUsed,
> -			  ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	short *p = (short *) &frame[*frameUsed];
> -	int val, stereo = sound.soft.stereo;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	used = count = min(userCount, frameLeft);
> -	while (count > 0) {
> -		u_char data;
> -		if (get_user(data, userPtr++))
> -			return -EFAULT;
> -		val = data << 8;
> -		*p++ = val;
> -		if (stereo) {
> -			if (get_user(data, userPtr++))
> -				return -EFAULT;
> -			val = data << 8;
> -		}
> -		*p++ = val;
> -		count--;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 2: used;
> -}
> -
> -
> -static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
> -			  u_char frame[], ssize_t *frameUsed,
> -			  ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	short *p = (short *) &frame[*frameUsed];
> -	int val, stereo = sound.soft.stereo;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	used = count = min(userCount, frameLeft);
> -	while (count > 0) {
> -		u_char data;
> -		if (get_user(data, userPtr++))
> -			return -EFAULT;
> -		val = (data ^ 0x80) << 8;
> -		*p++ = val;
> -		if (stereo) {
> -			if (get_user(data, userPtr++))
> -				return -EFAULT;
> -			val = (data ^ 0x80) << 8;
> -		}
> -		*p++ = val;
> -		count--;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 2: used;
> -}
> -
> -
> -/* This is the default format of the codec.  Signed, 16-bit stereo
> - * generated by an application shouldn't have to be copied at all.
> - * We should just get the phsical address of the buffers and update
> - * the TDM BDs directly.
> - */
> -static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	int stereo = sound.soft.stereo;
> -	short *fp = (short *) &frame[*frameUsed];
> -
> -	frameLeft >>= 2;
> -	userCount >>= (stereo? 2: 1);
> -	used = count = min(userCount, frameLeft);
> -	if (!stereo) {
> -		short *up = (short *) userPtr;
> -		while (count > 0) {
> -			short data;
> -			if (get_user(data, up++))
> -				return -EFAULT;
> -			*fp++ = data;
> -			*fp++ = data;
> -			count--;
> -		}
> -	} else {
> -		if (copy_from_user(fp, userPtr, count * 4))
> -			return -EFAULT;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 4: used * 2;
> -}
> -
> -static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
> -	int stereo = sound.soft.stereo;
> -	short *fp = (short *) &frame[*frameUsed];
> -	short *up = (short *) userPtr;
> -
> -	frameLeft >>= 2;
> -	userCount >>= (stereo? 2: 1);
> -	used = count = min(userCount, frameLeft);
> -	while (count > 0) {
> -		int data;
> -		if (get_user(data, up++))
> -			return -EFAULT;
> -		data ^= mask;
> -		*fp++ = data;
> -		if (stereo) {
> -			if (get_user(data, up++))
> -				return -EFAULT;
> -			data ^= mask;
> -		}
> -		*fp++ = data;
> -		count--;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 4: used * 2;
> -}
> -
> -
> -static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
> -			    u_char frame[], ssize_t *frameUsed,
> -			    ssize_t frameLeft)
> -{
> -	unsigned short *table = (unsigned short *)
> -		(sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16);
> -	unsigned int data = expand_data;
> -	unsigned int *p = (unsigned int *) &frame[*frameUsed];
> -	int bal = expand_bal;
> -	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
> -	int utotal, ftotal;
> -	int stereo = sound.soft.stereo;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	ftotal = frameLeft;
> -	utotal = userCount;
> -	while (frameLeft) {
> -		u_char c;
> -		if (bal < 0) {
> -			if (userCount == 0)
> -				break;
> -			if (get_user(c, userPtr++))
> -				return -EFAULT;
> -			data = table[c];
> -			if (stereo) {
> -				if (get_user(c, userPtr++))
> -					return -EFAULT;
> -				data = (data << 16) + table[c];
> -			} else
> -				data = (data << 16) + data;
> -			userCount--;
> -			bal += hSpeed;
> -		}
> -		*p++ = data;
> -		frameLeft--;
> -		bal -= sSpeed;
> -	}
> -	expand_bal = bal;
> -	expand_data = data;
> -	*frameUsed += (ftotal - frameLeft) * 4;
> -	utotal -= userCount;
> -	return stereo? utotal * 2: utotal;
> -}
> -
> -
> -static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft)
> -{
> -	unsigned int *p = (unsigned int *) &frame[*frameUsed];
> -	unsigned int data = expand_data;
> -	int bal = expand_bal;
> -	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
> -	int stereo = sound.soft.stereo;
> -	int utotal, ftotal;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	ftotal = frameLeft;
> -	utotal = userCount;
> -	while (frameLeft) {
> -		u_char c;
> -		if (bal < 0) {
> -			if (userCount == 0)
> -				break;
> -			if (get_user(c, userPtr++))
> -				return -EFAULT;
> -			data = c << 8;
> -			if (stereo) {
> -				if (get_user(c, userPtr++))
> -					return -EFAULT;
> -				data = (data << 16) + (c << 8);
> -			} else
> -				data = (data << 16) + data;
> -			userCount--;
> -			bal += hSpeed;
> -		}
> -		*p++ = data;
> -		frameLeft--;
> -		bal -= sSpeed;
> -	}
> -	expand_bal = bal;
> -	expand_data = data;
> -	*frameUsed += (ftotal - frameLeft) * 4;
> -	utotal -= userCount;
> -	return stereo? utotal * 2: utotal;
> -}
> -
> -
> -static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft)
> -{
> -	unsigned int *p = (unsigned int *) &frame[*frameUsed];
> -	unsigned int data = expand_data;
> -	int bal = expand_bal;
> -	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
> -	int stereo = sound.soft.stereo;
> -	int utotal, ftotal;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	ftotal = frameLeft;
> -	utotal = userCount;
> -	while (frameLeft) {
> -		u_char c;
> -		if (bal < 0) {
> -			if (userCount == 0)
> -				break;
> -			if (get_user(c, userPtr++))
> -				return -EFAULT;
> -			data = (c ^ 0x80) << 8;
> -			if (stereo) {
> -				if (get_user(c, userPtr++))
> -					return -EFAULT;
> -				data = (data << 16) + ((c ^ 0x80) << 8);
> -			} else
> -				data = (data << 16) + data;
> -			userCount--;
> -			bal += hSpeed;
> -		}
> -		*p++ = data;
> -		frameLeft--;
> -		bal -= sSpeed;
> -	}
> -	expand_bal = bal;
> -	expand_data = data;
> -	*frameUsed += (ftotal - frameLeft) * 4;
> -	utotal -= userCount;
> -	return stereo? utotal * 2: utotal;
> -}
> -
> -
> -static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
> -			    u_char frame[], ssize_t *frameUsed,
> -			    ssize_t frameLeft)
> -{
> -	unsigned int *p = (unsigned int *) &frame[*frameUsed];
> -	unsigned int data = expand_data;
> -	unsigned short *up = (unsigned short *) userPtr;
> -	int bal = expand_bal;
> -	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
> -	int stereo = sound.soft.stereo;
> -	int utotal, ftotal;
> -
> -	frameLeft >>= 2;
> -	userCount >>= (stereo? 2: 1);
> -	ftotal = frameLeft;
> -	utotal = userCount;
> -	while (frameLeft) {
> -		unsigned short c;
> -		if (bal < 0) {
> -			if (userCount == 0)
> -				break;
> -			if (get_user(data, up++))
> -				return -EFAULT;
> -			if (stereo) {
> -				if (get_user(c, up++))
> -					return -EFAULT;
> -				data = (data << 16) + c;
> -			} else
> -				data = (data << 16) + data;
> -			userCount--;
> -			bal += hSpeed;
> -		}
> -		*p++ = data;
> -		frameLeft--;
> -		bal -= sSpeed;
> -	}
> -	expand_bal = bal;
> -	expand_data = data;
> -	*frameUsed += (ftotal - frameLeft) * 4;
> -	utotal -= userCount;
> -	return stereo? utotal * 4: utotal * 2;
> -}
> -
> -
> -static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
> -			    u_char frame[], ssize_t *frameUsed,
> -			    ssize_t frameLeft)
> -{
> -	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
> -	unsigned int *p = (unsigned int *) &frame[*frameUsed];
> -	unsigned int data = expand_data;
> -	unsigned short *up = (unsigned short *) userPtr;
> -	int bal = expand_bal;
> -	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
> -	int stereo = sound.soft.stereo;
> -	int utotal, ftotal;
> -
> -	frameLeft >>= 2;
> -	userCount >>= (stereo? 2: 1);
> -	ftotal = frameLeft;
> -	utotal = userCount;
> -	while (frameLeft) {
> -		unsigned short c;
> -		if (bal < 0) {
> -			if (userCount == 0)
> -				break;
> -			if (get_user(data, up++))
> -				return -EFAULT;
> -			data ^= mask;
> -			if (stereo) {
> -				if (get_user(c, up++))
> -					return -EFAULT;
> -				data = (data << 16) + (c ^ mask);
> -			} else
> -				data = (data << 16) + data;
> -			userCount--;
> -			bal += hSpeed;
> -		}
> -		*p++ = data;
> -		frameLeft--;
> -		bal -= sSpeed;
> -	}
> -	expand_bal = bal;
> -	expand_data = data;
> -	*frameUsed += (ftotal - frameLeft) * 4;
> -	utotal -= userCount;
> -	return stereo? utotal * 4: utotal * 2;
> -}
> -
> -static ssize_t cs4218_ct_s8_read(const u_char *userPtr, size_t userCount,
> -			  u_char frame[], ssize_t *frameUsed,
> -			  ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	short *p = (short *) &frame[*frameUsed];
> -	int val, stereo = sound.soft.stereo;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	used = count = min(userCount, frameLeft);
> -	while (count > 0) {
> -		u_char data;
> -
> -		val = *p++;
> -		data = val >> 8;
> -		if (put_user(data, (u_char *)userPtr++))
> -			return -EFAULT;
> -		if (stereo) {
> -			val = *p;
> -			data = val >> 8;
> -			if (put_user(data, (u_char *)userPtr++))
> -				return -EFAULT;
> -		}
> -		p++;
> -		count--;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 2: used;
> -}
> -
> -
> -static ssize_t cs4218_ct_u8_read(const u_char *userPtr, size_t userCount,
> -			  u_char frame[], ssize_t *frameUsed,
> -			  ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	short *p = (short *) &frame[*frameUsed];
> -	int val, stereo = sound.soft.stereo;
> -
> -	frameLeft >>= 2;
> -	if (stereo)
> -		userCount >>= 1;
> -	used = count = min(userCount, frameLeft);
> -	while (count > 0) {
> -		u_char data;
> -
> -		val = *p++;
> -		data = (val >> 8) ^ 0x80;
> -		if (put_user(data, (u_char *)userPtr++))
> -			return -EFAULT;
> -		if (stereo) {
> -			val = *p;
> -			data = (val >> 8) ^ 0x80;
> -			if (put_user(data, (u_char *)userPtr++))
> -				return -EFAULT;
> -		}
> -		p++;
> -		count--;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 2: used;
> -}
> -
> -
> -static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	int stereo = sound.soft.stereo;
> -	short *fp = (short *) &frame[*frameUsed];
> -
> -	frameLeft >>= 2;
> -	userCount >>= (stereo? 2: 1);
> -	used = count = min(userCount, frameLeft);
> -	if (!stereo) {
> -		short *up = (short *) userPtr;
> -		while (count > 0) {
> -			short data;
> -			data = *fp;
> -			if (put_user(data, up++))
> -				return -EFAULT;
> -			fp+=2;
> -			count--;
> -		}
> -	} else {
> -		if (copy_to_user((u_char *)userPtr, fp, count * 4))
> -			return -EFAULT;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 4: used * 2;
> -}
> -
> -static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
> -			   u_char frame[], ssize_t *frameUsed,
> -			   ssize_t frameLeft)
> -{
> -	ssize_t count, used;
> -	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
> -	int stereo = sound.soft.stereo;
> -	short *fp = (short *) &frame[*frameUsed];
> -	short *up = (short *) userPtr;
> -
> -	frameLeft >>= 2;
> -	userCount >>= (stereo? 2: 1);
> -	used = count = min(userCount, frameLeft);
> -	while (count > 0) {
> -		int data;
> -
> -		data = *fp++;
> -		data ^= mask;
> -		if (put_user(data, up++))
> -			return -EFAULT;
> -		if (stereo) {
> -			data = *fp;
> -			data ^= mask;
> -			if (put_user(data, up++))
> -				return -EFAULT;
> -		}
> -		fp++;
> -		count--;
> -	}
> -	*frameUsed += used * 4;
> -	return stereo? used * 4: used * 2;
> -}
> -
> -static TRANS transCSNormal = {
> -	cs4218_ct_law, cs4218_ct_law, cs4218_ct_s8, cs4218_ct_u8,
> -	cs4218_ct_s16, cs4218_ct_u16, cs4218_ct_s16, cs4218_ct_u16
> -};
> -
> -static TRANS transCSExpand = {
> -	cs4218_ctx_law, cs4218_ctx_law, cs4218_ctx_s8, cs4218_ctx_u8,
> -	cs4218_ctx_s16, cs4218_ctx_u16, cs4218_ctx_s16, cs4218_ctx_u16
> -};
> -
> -static TRANS transCSNormalRead = {
> -	NULL, NULL, cs4218_ct_s8_read, cs4218_ct_u8_read,
> -	cs4218_ct_s16_read, cs4218_ct_u16_read,
> -	cs4218_ct_s16_read, cs4218_ct_u16_read
> -};
> -
> -/*** Low level stuff *********************************************************/
> -
> -static void *CS_Alloc(unsigned int size, gfp_t flags)
> -{
> -	int	order;
> -
> -	size >>= 13;
> -	for (order=0; order < 5; order++) {
> -		if (size == 0)
> -			break;
> -		size >>= 1;
> -	}
> -	return (void *)__get_free_pages(flags, order);
> -}
> -
> -static void CS_Free(void *ptr, unsigned int size)
> -{
> -	int	order;
> -
> -	size >>= 13;
> -	for (order=0; order < 5; order++) {
> -		if (size == 0)
> -			break;
> -		size >>= 1;
> -	}
> -	free_pages((ulong)ptr, order);
> -}
> -
> -static int __init CS_IrqInit(void)
> -{
> -	cpm_install_handler(CPMVEC_SMC2, cs4218_intr, NULL);
> -	return 1;
> -}
> -
> -#ifdef MODULE
> -static void CS_IrqCleanup(void)
> -{
> -	volatile smc_t		*sp;
> -	volatile cpm8xx_t	*cp;
> -
> -	/* First disable transmitter and receiver.
> -	*/
> -	sp = &cpmp->cp_smc[1];
> -	sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
> -
> -	/* And now shut down the SMC.
> -	*/
> -	cp = cpmp;	/* Get pointer to Communication Processor */
> -	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
> -				CPM_CR_STOP_TX) | CPM_CR_FLG;
> -	while (cp->cp_cpcr & CPM_CR_FLG);
> -
> -	/* Release the interrupt handler.
> -	*/
> -	cpm_free_handler(CPMVEC_SMC2);
> -
> -	kfree(beep_buf);
> -	kd_mksound = orig_mksound;
> -}
> -#endif /* MODULE */
> -
> -static void CS_Silence(void)
> -{
> -	volatile smc_t		*sp;
> -
> -	/* Disable transmitter.
> -	*/
> -	sp = &cpmp->cp_smc[1];
> -	sp->smc_smcmr &= ~SMCMR_TEN;
> -}
> -
> -/* Frequencies depend upon external oscillator.  There are two
> - * choices, 12.288 and 11.2896 MHz.  The RPCG audio supports both through
> - * and external control register selection bit.
> - */
> -static int cs4218_freqs[] = {
> -    /* 12.288  11.2896  */
> -	48000, 44100,
> -	32000, 29400,
> -	24000, 22050,
> -	19200, 17640,
> -	16000, 14700,
> -	12000, 11025,
> -	 9600,  8820,
> -	 8000,  7350
> -};
> -
> -static void CS_Init(void)
> -{
> -	int i, tolerance;
> -
> -	switch (sound.soft.format) {
> -	case AFMT_S16_LE:
> -	case AFMT_U16_LE:
> -		sound.hard.format = AFMT_S16_LE;
> -		break;
> -	default:
> -		sound.hard.format = AFMT_S16_BE;
> -		break;
> -	}
> -	sound.hard.stereo = 1;
> -	sound.hard.size = 16;
> -
> -	/*
> -	 * If we have a sample rate which is within catchRadius percent
> -	 * of the requested value, we don't have to expand the samples.
> -	 * Otherwise choose the next higher rate.
> -	 */
> -	i = (sizeof(cs4218_freqs) / sizeof(int));
> -	do {
> -		tolerance = catchRadius * cs4218_freqs[--i] / 100;
> -	} while (sound.soft.speed > cs4218_freqs[i] + tolerance && i > 0);
> -	if (sound.soft.speed >= cs4218_freqs[i] - tolerance)
> -		sound.trans_write = &transCSNormal;
> -	else
> -		sound.trans_write = &transCSExpand;
> -	sound.trans_read = &transCSNormalRead;
> -	sound.hard.speed = cs4218_freqs[i];
> -	cs4218_rate_index = i;
> -
> -	/* The CS4218 has seven selectable clock dividers for the sample
> -	 * clock.  The HIOX then provides one of two external rates.
> -	 * An even numbered frequency table index uses the high external
> -	 * clock rate.
> -	 */
> -	*(uint *)HIOX_CSR4_ADDR &= ~(HIOX_CSR4_AUDCLKHI | HIOX_CSR4_AUDCLKSEL);
> -	if ((i & 1) == 0)
> -		*(uint *)HIOX_CSR4_ADDR |= HIOX_CSR4_AUDCLKHI;
> -	i >>= 1;
> -	*(uint *)HIOX_CSR4_ADDR |= (i & HIOX_CSR4_AUDCLKSEL);
> -
> -	expand_bal = -sound.soft.speed;
> -}
> -
> -static int CS_SetFormat(int format)
> -{
> -	int size;
> -
> -	switch (format) {
> -	case AFMT_QUERY:
> -		return sound.soft.format;
> -	case AFMT_MU_LAW:
> -	case AFMT_A_LAW:
> -	case AFMT_U8:
> -	case AFMT_S8:
> -		size = 8;
> -		break;
> -	case AFMT_S16_BE:
> -	case AFMT_U16_BE:
> -	case AFMT_S16_LE:
> -	case AFMT_U16_LE:
> -		size = 16;
> -		break;
> -	default: /* :-) */
> -		printk(KERN_ERR "dmasound: unknown format 0x%x, using AFMT_U8\n",
> -		       format);
> -		size = 8;
> -		format = AFMT_U8;
> -	}
> -
> -	sound.soft.format = format;
> -	sound.soft.size = size;
> -	if (sound.minDev == SND_DEV_DSP) {
> -		sound.dsp.format = format;
> -		sound.dsp.size = size;
> -	}
> -
> -	CS_Init();
> -
> -	return format;
> -}
> -
> -/* Volume is the amount of attenuation we tell the codec to impose
> - * on the outputs.  There are 32 levels, with 0 the "loudest".
> - */
> -#define CS_VOLUME_TO_MASK(x)	(31 - ((((x) - 1) * 31) / 99))
> -#define CS_MASK_TO_VOLUME(y)	(100 - ((y) * 99 / 31))
> -
> -static int cs_get_volume(uint reg)
> -{
> -	int volume;
> -
> -	volume = CS_MASK_TO_VOLUME(CS_LATTEN_GET(reg));
> -	volume |= CS_MASK_TO_VOLUME(CS_RATTEN_GET(reg)) << 8;
> -	return volume;
> -}
> -
> -static int cs_volume_setter(int volume, int mute)
> -{
> -	uint tempctl;
> -
> -	if (mute && volume == 0) {
> -		tempctl = cs4218_control | CS_MUTE;
> -	} else {
> -		tempctl = cs4218_control & ~CS_MUTE;
> -		tempctl = tempctl & ~(CS_LATTEN | CS_RATTEN);
> -		tempctl |= CS_LATTEN_SET(CS_VOLUME_TO_MASK(volume & 0xff));
> -		tempctl |= CS_RATTEN_SET(CS_VOLUME_TO_MASK((volume >> 8) & 0xff));
> -		volume = cs_get_volume(tempctl);
> -	}
> -	if (tempctl != cs4218_control) {
> -		cs4218_ctl_write(tempctl);
> -	}
> -	return volume;
> -}
> -
> -
> -/* Gain has 16 steps from 0 to 15.  These are in 1.5dB increments from
> - * 0 (no gain) to 22.5 dB.
> - */
> -#define CS_RECLEVEL_TO_GAIN(v) \
> -	((v) < 0 ? 0 : (v) > 100 ? 15 : (v) * 3 / 20)
> -#define CS_GAIN_TO_RECLEVEL(v) (((v) * 20 + 2) / 3)
> -
> -static int cs_get_gain(uint reg)
> -{
> -	int gain;
> -
> -	gain = CS_GAIN_TO_RECLEVEL(CS_LGAIN_GET(reg));
> -	gain |= CS_GAIN_TO_RECLEVEL(CS_RGAIN_GET(reg)) << 8;
> -	return gain;
> -}
> -
> -static int cs_set_gain(int gain)
> -{
> -	uint tempctl;
> -
> -	tempctl = cs4218_control & ~(CS_LGAIN | CS_RGAIN);
> -	tempctl |= CS_LGAIN_SET(CS_RECLEVEL_TO_GAIN(gain & 0xff));
> -	tempctl |= CS_RGAIN_SET(CS_RECLEVEL_TO_GAIN((gain >> 8) & 0xff));
> -	gain = cs_get_gain(tempctl);
> -
> -	if (tempctl != cs4218_control) {
> -		cs4218_ctl_write(tempctl);
> -	}
> -	return gain;
> -}
> -
> -static int CS_SetVolume(int volume)
> -{
> -	return cs_volume_setter(volume, CS_MUTE);
> -}
> -
> -static void CS_Play(void)
> -{
> -	int i, count;
> -	unsigned long flags;
> -	volatile cbd_t	*bdp;
> -	volatile cpm8xx_t *cp;
> -
> -	/* Protect buffer */
> -	spin_lock_irqsave(&cs4218_lock, flags);
> -#if 0
> -	if (awacs_beep_state) {
> -		/* sound takes precedence over beeps */
> -		out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
> -		out_le32(&awacs->control,
> -			 (in_le32(&awacs->control) & ~0x1f00)
> -			 | (awacs_rate_index << 8));
> -		out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE);
> -		out_le32(&awacs_txdma->cmdptr, virt_to_bus(&(awacs_tx_cmds[(sq.front+sq.active) % sq.max_count])));
> -
> -		beep_playing = 0;
> -		awacs_beep_state = 0;
> -	}
> -#endif
> -	i = sq.front + sq.active;
> -	if (i >= sq.max_count)
> -		i -= sq.max_count;
> -	while (sq.active < 2 && sq.active < sq.count) {
> -		count = (sq.count == sq.active + 1)?sq.rear_size:sq.block_size;
> -		if (count < sq.block_size && !sq.syncing)
> -			/* last block not yet filled, and we're not syncing. */
> -			break;
> -
> -		bdp = &tx_base[i];
> -		bdp->cbd_datlen = count;
> -
> -		flush_dcache_range((ulong)sound_buffers[i],
> -					(ulong)(sound_buffers[i] + count));
> -
> -		if (++i >= sq.max_count)
> -			i = 0;
> -
> -		if (sq.active == 0) {
> -			/* The SMC does not load its fifo until the first
> -			 * TDM frame pulse, so the transmit data gets shifted
> -			 * by one word.  To compensate for this, we incorrectly
> -			 * transmit the first buffer and shorten it by one
> -			 * word.  Subsequent buffers are then aligned properly.
> -			 */
> -			bdp->cbd_datlen -= 2;
> -
> -			/* Start up the SMC Transmitter.
> -			*/
> -			cp = cpmp;
> -			cp->cp_smc[1].smc_smcmr |= SMCMR_TEN;
> -			cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
> -					CPM_CR_RESTART_TX) | CPM_CR_FLG;
> -			while (cp->cp_cpcr & CPM_CR_FLG);
> -		}
> -
> -		/* Buffer is ready now.
> -		*/
> -		bdp->cbd_sc |= BD_SC_READY;
> -
> -		++sq.active;
> -	}
> -	spin_unlock_irqrestore(&cs4218_lock, flags);
> -}
> -
> -
> -static void CS_Record(void)
> -{
> -	unsigned long flags;
> -	volatile smc_t		*sp;
> -
> -	if (read_sq.active)
> -		return;
> -
> -	/* Protect buffer */
> -	spin_lock_irqsave(&cs4218_lock, flags);
> -
> -	/* This is all we have to do......Just start it up.
> -	*/
> -	sp = &cpmp->cp_smc[1];
> -	sp->smc_smcmr |= SMCMR_REN;
> -
> -	read_sq.active = 1;
> -
> -        spin_unlock_irqrestore(&cs4218_lock, flags);
> -}
> -
> -
> -static void
> -cs4218_tdm_tx_intr(void *devid)
> -{
> -	int i = sq.front;
> -	volatile cbd_t *bdp;
> -
> -	while (sq.active > 0) {
> -		bdp = &tx_base[i];
> -		if (bdp->cbd_sc & BD_SC_READY)
> -			break;	/* this frame is still going */
> -		--sq.count;
> -		--sq.active;
> -		if (++i >= sq.max_count)
> -			i = 0;
> -	}
> -	if (i != sq.front)
> -		WAKE_UP(sq.action_queue);
> -	sq.front = i;
> -
> -	CS_Play();
> -
> -	if (!sq.active)
> -		WAKE_UP(sq.sync_queue);
> -}
> -
> -
> -static void
> -cs4218_tdm_rx_intr(void *devid)
> -{
> -
> -	/* We want to blow 'em off when shutting down.
> -	*/
> -	if (read_sq.active == 0)
> -		return;
> -
> -	/* Check multiple buffers in case we were held off from
> -	 * interrupt processing for a long time.  Geeze, I really hope
> -	 * this doesn't happen.
> -	 */
> -	while ((rx_base[read_sq.rear].cbd_sc & BD_SC_EMPTY) == 0) {
> -
> -		/* Invalidate the data cache range for this buffer.
> -		*/
> -		invalidate_dcache_range(
> -		    (uint)(sound_read_buffers[read_sq.rear]),
> -		    (uint)(sound_read_buffers[read_sq.rear] + read_sq.block_size));
> -
> -		/* Make buffer available again and move on.
> -		*/
> -		rx_base[read_sq.rear].cbd_sc |= BD_SC_EMPTY;
> -		read_sq.rear++;
> -
> -		/* Wrap the buffer ring.
> -		*/
> -		if (read_sq.rear >= read_sq.max_active)
> -			read_sq.rear = 0;
> -
> -		/* If we have caught up to the front buffer, bump it.
> -		 * This will cause weird (but not fatal) results if the
> -		 * read loop is currently using this buffer.  The user is
> -		 * behind in this case anyway, so weird things are going
> -		 * to happen.
> -		 */
> -		if (read_sq.rear == read_sq.front) {
> -			read_sq.front++;
> -			if (read_sq.front >= read_sq.max_active)
> -				read_sq.front = 0;
> -		}
> -	}
> -
> -	WAKE_UP(read_sq.action_queue);
> -}
> -
> -static void cs_nosound(unsigned long xx)
> -{
> -	unsigned long flags;
> -
> -	/* not sure if this is needed, since hardware command is #if 0'd */
> -	spin_lock_irqsave(&cs4218_lock, flags);
> -	if (beep_playing) {
> -#if 0
> -		st_le16(&beep_dbdma_cmd->command, DBDMA_STOP);
> -#endif
> -		beep_playing = 0;
> -	}
> -	spin_unlock_irqrestore(&cs4218_lock, flags);
> -}
> -
> -static DEFINE_TIMER(beep_timer, cs_nosound, 0, 0);
> -
> -static void cs_mksound(unsigned int hz, unsigned int ticks)
> -{
> -	unsigned long flags;
> -	int beep_speed = BEEP_SPEED;
> -	int srate = cs4218_freqs[beep_speed];
> -	int period, ncycles, nsamples;
> -	int i, j, f;
> -	short *p;
> -	static int beep_hz_cache;
> -	static int beep_nsamples_cache;
> -	static int beep_volume_cache;
> -
> -	if (hz <= srate / BEEP_BUFLEN || hz > srate / 2) {
> -#if 1
> -		/* this is a hack for broken X server code */
> -		hz = 750;
> -		ticks = 12;
> -#else
> -		/* cancel beep currently playing */
> -		awacs_nosound(0);
> -		return;
> -#endif
> -	}
> -	/* lock while modifying beep_timer */
> -	spin_lock_irqsave(&cs4218_lock, flags);
> -	del_timer(&beep_timer);
> -	if (ticks) {
> -		beep_timer.expires = jiffies + ticks;
> -		add_timer(&beep_timer);
> -	}
> -	if (beep_playing || sq.active || beep_buf == NULL) {
> -		spin_unlock_irqrestore(&cs4218_lock, flags);
> -		return;		/* too hard, sorry :-( */
> -	}
> -	beep_playing = 1;
> -#if 0
> -	st_le16(&beep_dbdma_cmd->command, OUTPUT_MORE + BR_ALWAYS);
> -#endif
> -	spin_unlock_irqrestore(&cs4218_lock, flags);
> -
> -	if (hz == beep_hz_cache && beep_volume == beep_volume_cache) {
> -		nsamples = beep_nsamples_cache;
> -	} else {
> -		period = srate * 256 / hz;	/* fixed point */
> -		ncycles = BEEP_BUFLEN * 256 / period;
> -		nsamples = (period * ncycles) >> 8;
> -		f = ncycles * 65536 / nsamples;
> -		j = 0;
> -		p = beep_buf;
> -		for (i = 0; i < nsamples; ++i, p += 2) {
> -			p[0] = p[1] = beep_wform[j >> 8] * beep_volume;
> -			j = (j + f) & 0xffff;
> -		}
> -		beep_hz_cache = hz;
> -		beep_volume_cache = beep_volume;
> -		beep_nsamples_cache = nsamples;
> -	}
> -
> -#if 0
> -	st_le16(&beep_dbdma_cmd->req_count, nsamples*4);
> -	st_le16(&beep_dbdma_cmd->xfer_status, 0);
> -	st_le32(&beep_dbdma_cmd->cmd_dep, virt_to_bus(beep_dbdma_cmd));
> -	st_le32(&beep_dbdma_cmd->phy_addr, virt_to_bus(beep_buf));
> -	awacs_beep_state = 1;
> -
> -	spin_lock_irqsave(&cs4218_lock, flags);
> -	if (beep_playing) {	/* i.e. haven't been terminated already */
> -		out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
> -		out_le32(&awacs->control,
> -			 (in_le32(&awacs->control) & ~0x1f00)
> -			 | (beep_speed << 8));
> -		out_le32(&awacs->byteswap, 0);
> -		out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd));
> -		out_le32(&awacs_txdma->control, RUN | (RUN << 16));
> -	}
> -	spin_unlock_irqrestore(&cs4218_lock, flags);
> -#endif
> -}
> -
> -static MACHINE mach_cs4218 = {
> -	.owner =	THIS_MODULE,
> -	.name =		"HIOX CS4218",
> -	.name2 =	"Built-in Sound",
> -	.dma_alloc =	CS_Alloc,
> -	.dma_free =	CS_Free,
> -	.irqinit =	CS_IrqInit,
> -#ifdef MODULE
> -	.irqcleanup =	CS_IrqCleanup,
> -#endif /* MODULE */
> -	.init =		CS_Init,
> -	.silence =	CS_Silence,
> -	.setFormat =	CS_SetFormat,
> -	.setVolume =	CS_SetVolume,
> -	.play =		CS_Play
> -};
> -
> -
> -/*** Mid level stuff *********************************************************/
> -
> -
> -static void sound_silence(void)
> -{
> -	/* update hardware settings one more */
> -	(*sound.mach.init)();
> -
> -	(*sound.mach.silence)();
> -}
> -
> -
> -static void sound_init(void)
> -{
> -	(*sound.mach.init)();
> -}
> -
> -
> -static int sound_set_format(int format)
> -{
> -	return(*sound.mach.setFormat)(format);
> -}
> -
> -
> -static int sound_set_speed(int speed)
> -{
> -	if (speed < 0)
> -		return(sound.soft.speed);
> -
> -	sound.soft.speed = speed;
> -	(*sound.mach.init)();
> -	if (sound.minDev == SND_DEV_DSP)
> -		sound.dsp.speed = sound.soft.speed;
> -
> -	return(sound.soft.speed);
> -}
> -
> -
> -static int sound_set_stereo(int stereo)
> -{
> -	if (stereo < 0)
> -		return(sound.soft.stereo);
> -
> -	stereo = !!stereo;    /* should be 0 or 1 now */
> -
> -	sound.soft.stereo = stereo;
> -	if (sound.minDev == SND_DEV_DSP)
> -		sound.dsp.stereo = stereo;
> -	(*sound.mach.init)();
> -
> -	return(stereo);
> -}
> -
> -
> -static int sound_set_volume(int volume)
> -{
> -	return(*sound.mach.setVolume)(volume);
> -}
> -
> -static ssize_t sound_copy_translate(const u_char *userPtr,
> -				    size_t userCount,
> -				    u_char frame[], ssize_t *frameUsed,
> -				    ssize_t frameLeft)
> -{
> -	ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
> -
> -	switch (sound.soft.format) {
> -	case AFMT_MU_LAW:
> -		ct_func = sound.trans_write->ct_ulaw;
> -		break;
> -	case AFMT_A_LAW:
> -		ct_func = sound.trans_write->ct_alaw;
> -		break;
> -	case AFMT_S8:
> -		ct_func = sound.trans_write->ct_s8;
> -		break;
> -	case AFMT_U8:
> -		ct_func = sound.trans_write->ct_u8;
> -		break;
> -	case AFMT_S16_BE:
> -		ct_func = sound.trans_write->ct_s16be;
> -		break;
> -	case AFMT_U16_BE:
> -		ct_func = sound.trans_write->ct_u16be;
> -		break;
> -	case AFMT_S16_LE:
> -		ct_func = sound.trans_write->ct_s16le;
> -		break;
> -	case AFMT_U16_LE:
> -		ct_func = sound.trans_write->ct_u16le;
> -		break;
> -	}
> -	if (ct_func)
> -		return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
> -	else
> -		return 0;
> -}
> -
> -static ssize_t sound_copy_translate_read(const u_char *userPtr,
> -				    size_t userCount,
> -				    u_char frame[], ssize_t *frameUsed,
> -				    ssize_t frameLeft)
> -{
> -	ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
> -
> -	switch (sound.soft.format) {
> -	case AFMT_MU_LAW:
> -		ct_func = sound.trans_read->ct_ulaw;
> -		break;
> -	case AFMT_A_LAW:
> -		ct_func = sound.trans_read->ct_alaw;
> -		break;
> -	case AFMT_S8:
> -		ct_func = sound.trans_read->ct_s8;
> -		break;
> -	case AFMT_U8:
> -		ct_func = sound.trans_read->ct_u8;
> -		break;
> -	case AFMT_S16_BE:
> -		ct_func = sound.trans_read->ct_s16be;
> -		break;
> -	case AFMT_U16_BE:
> -		ct_func = sound.trans_read->ct_u16be;
> -		break;
> -	case AFMT_S16_LE:
> -		ct_func = sound.trans_read->ct_s16le;
> -		break;
> -	case AFMT_U16_LE:
> -		ct_func = sound.trans_read->ct_u16le;
> -		break;
> -	}
> -	if (ct_func)
> -		return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
> -	else
> -		return 0;
> -}
> -
> -
> -/*
> - * /dev/mixer abstraction
> - */
> -
> -static int mixer_open(struct inode *inode, struct file *file)
> -{
> -	mixer.busy = 1;
> -	return nonseekable_open(inode, file);
> -}
> -
> -
> -static int mixer_release(struct inode *inode, struct file *file)
> -{
> -	mixer.busy = 0;
> -	return 0;
> -}
> -
> -
> -static int mixer_ioctl(struct inode *inode, struct file *file, u_int cmd,
> -		       u_long arg)
> -{
> -	int data;
> -	uint tmpcs;
> -
> -	if (_SIOC_DIR(cmd) & _SIOC_WRITE)
> -	    mixer.modify_counter++;
> -	if (cmd == OSS_GETVERSION)
> -	    return IOCTL_OUT(arg, SOUND_VERSION);
> -	switch (cmd) {
> -		case SOUND_MIXER_INFO: {
> -		    mixer_info info;
> -		    strlcpy(info.id, "CS4218_TDM", sizeof(info.id));
> -		    strlcpy(info.name, "CS4218_TDM", sizeof(info.name));
> -		    info.name[sizeof(info.name)-1] = 0;
> -		    info.modify_counter = mixer.modify_counter;
> -		    if (copy_to_user((int *)arg, &info, sizeof(info)))
> -		    		return -EFAULT;
> -		    return 0;
> -		}
> -		case SOUND_MIXER_READ_DEVMASK:
> -			data = SOUND_MASK_VOLUME | SOUND_MASK_LINE
> -				| SOUND_MASK_MIC | SOUND_MASK_RECLEV
> -				| SOUND_MASK_ALTPCM;
> -			return IOCTL_OUT(arg, data);
> -		case SOUND_MIXER_READ_RECMASK:
> -			data = SOUND_MASK_LINE | SOUND_MASK_MIC;
> -			return IOCTL_OUT(arg, data);
> -		case SOUND_MIXER_READ_RECSRC:
> -			if (cs4218_control & CS_DO1)
> -				data = SOUND_MASK_LINE;
> -			else
> -				data = SOUND_MASK_MIC;
> -			return IOCTL_OUT(arg, data);
> -		case SOUND_MIXER_WRITE_RECSRC:
> -			IOCTL_IN(arg, data);
> -			data &= (SOUND_MASK_LINE | SOUND_MASK_MIC);
> -			if (data & SOUND_MASK_LINE)
> -				tmpcs = cs4218_control |
> -						(CS_ISL | CS_ISR | CS_DO1);
> -			if (data & SOUND_MASK_MIC)
> -				tmpcs = cs4218_control &
> -						~(CS_ISL | CS_ISR | CS_DO1);
> -			if (tmpcs != cs4218_control)
> -				cs4218_ctl_write(tmpcs);
> -			return IOCTL_OUT(arg, data);
> -		case SOUND_MIXER_READ_STEREODEVS:
> -			data = SOUND_MASK_VOLUME | SOUND_MASK_RECLEV;
> -			return IOCTL_OUT(arg, data);
> -		case SOUND_MIXER_READ_CAPS:
> -			return IOCTL_OUT(arg, 0);
> -		case SOUND_MIXER_READ_VOLUME:
> -			data = (cs4218_control & CS_MUTE)? 0:
> -				cs_get_volume(cs4218_control);
> -			return IOCTL_OUT(arg, data);
> -		case SOUND_MIXER_WRITE_VOLUME:
> -			IOCTL_IN(arg, data);
> -			return IOCTL_OUT(arg, sound_set_volume(data));
> -		case SOUND_MIXER_WRITE_ALTPCM:	/* really bell volume */
> -			IOCTL_IN(arg, data);
> -			beep_volume = data & 0xff;
> -			/* fall through */
> -		case SOUND_MIXER_READ_ALTPCM:
> -			return IOCTL_OUT(arg, beep_volume);
> -		case SOUND_MIXER_WRITE_RECLEV:
> -			IOCTL_IN(arg, data);
> -			data = cs_set_gain(data);
> -			return IOCTL_OUT(arg, data);
> -		case SOUND_MIXER_READ_RECLEV:
> -			data = cs_get_gain(cs4218_control);
> -			return IOCTL_OUT(arg, data);
> -	}
> -
> -	return -EINVAL;
> -}
> -
> -
> -static const struct file_operations mixer_fops =
> -{
> -	.owner =	THIS_MODULE,
> -	.llseek =	sound_lseek,
> -	.ioctl =	mixer_ioctl,
> -	.open =		mixer_open,
> -	.release =	mixer_release,
> -};
> -
> -
> -static void __init mixer_init(void)
> -{
> -	mixer_unit = register_sound_mixer(&mixer_fops, -1);
> -	if (mixer_unit < 0)
> -		return;
> -
> -	mixer.busy = 0;
> -	sound.treble = 0;
> -	sound.bass = 0;
> -
> -	/* Set Line input, no gain, no attenuation.
> -	*/
> -	cs4218_control = CS_ISL | CS_ISR | CS_DO1;
> -	cs4218_control |= CS_LGAIN_SET(0) | CS_RGAIN_SET(0);
> -	cs4218_control |= CS_LATTEN_SET(0) | CS_RATTEN_SET(0);
> -	cs4218_ctl_write(cs4218_control);
> -}
> -
> -
> -/*
> - * Sound queue stuff, the heart of the driver
> - */
> -
> -
> -static int sq_allocate_buffers(void)
> -{
> -	int i;
> -
> -	if (sound_buffers)
> -		return 0;
> -	sound_buffers = kmalloc (numBufs * sizeof(char *), GFP_KERNEL);
> -	if (!sound_buffers)
> -		return -ENOMEM;
> -	for (i = 0; i < numBufs; i++) {
> -		sound_buffers[i] = sound.mach.dma_alloc (bufSize << 10, GFP_KERNEL);
> -		if (!sound_buffers[i]) {
> -			while (i--)
> -				sound.mach.dma_free (sound_buffers[i], bufSize << 10);
> -			kfree (sound_buffers);
> -			sound_buffers = 0;
> -			return -ENOMEM;
> -		}
> -	}
> -	return 0;
> -}
> -
> -
> -static void sq_release_buffers(void)
> -{
> -	int i;
> -
> -	if (sound_buffers) {
> -		for (i = 0; i < numBufs; i++)
> -			sound.mach.dma_free (sound_buffers[i], bufSize << 10);
> -		kfree (sound_buffers);
> -		sound_buffers = 0;
> -	}
> -}
> -
> -
> -static int sq_allocate_read_buffers(void)
> -{
> -	int i;
> -
> -	if (sound_read_buffers)
> -		return 0;
> -	sound_read_buffers = kmalloc(numReadBufs * sizeof(char *), GFP_KERNEL);
> -	if (!sound_read_buffers)
> -		return -ENOMEM;
> -	for (i = 0; i < numBufs; i++) {
> -		sound_read_buffers[i] = sound.mach.dma_alloc (readbufSize<<10,
> -							      GFP_KERNEL);
> -		if (!sound_read_buffers[i]) {
> -			while (i--)
> -				sound.mach.dma_free (sound_read_buffers[i],
> -						     readbufSize << 10);
> -			kfree (sound_read_buffers);
> -			sound_read_buffers = 0;
> -			return -ENOMEM;
> -		}
> -	}
> -	return 0;
> -}
> -
> -static void sq_release_read_buffers(void)
> -{
> -	int i;
> -
> -	if (sound_read_buffers) {
> -		cpmp->cp_smc[1].smc_smcmr &= ~SMCMR_REN;
> -		for (i = 0; i < numReadBufs; i++)
> -			sound.mach.dma_free (sound_read_buffers[i],
> -					     bufSize << 10);
> -		kfree (sound_read_buffers);
> -		sound_read_buffers = 0;
> -	}
> -}
> -
> -
> -static void sq_setup(int numBufs, int bufSize, char **write_buffers)
> -{
> -	int i;
> -	volatile cbd_t *bdp;
> -	volatile cpm8xx_t	*cp;
> -	volatile smc_t	*sp;
> -
> -	/* Make sure the SMC transmit is shut down.
> -	*/
> -	cp = cpmp;
> -	sp = &cpmp->cp_smc[1];
> -	sp->smc_smcmr &= ~SMCMR_TEN;
> -
> -	sq.max_count = numBufs;
> -	sq.max_active = numBufs;
> -	sq.block_size = bufSize;
> -	sq.buffers = write_buffers;
> -
> -	sq.front = sq.count = 0;
> -	sq.rear = -1;
> -	sq.syncing = 0;
> -	sq.active = 0;
> -
> -	bdp = tx_base;
> -	for (i=0; i<numBufs; i++) {
> -		bdp->cbd_bufaddr = virt_to_bus(write_buffers[i]);
> -		bdp++;
> -	}
> -
> -	/* This causes the SMC to sync up with the first buffer again.
> -	*/
> -	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_TX) | CPM_CR_FLG;
> -	while (cp->cp_cpcr & CPM_CR_FLG);
> -}
> -
> -static void read_sq_setup(int numBufs, int bufSize, char **read_buffers)
> -{
> -	int i;
> -	volatile cbd_t *bdp;
> -	volatile cpm8xx_t	*cp;
> -	volatile smc_t	*sp;
> -
> -	/* Make sure the SMC receive is shut down.
> -	*/
> -	cp = cpmp;
> -	sp = &cpmp->cp_smc[1];
> -	sp->smc_smcmr &= ~SMCMR_REN;
> -
> -	read_sq.max_count = numBufs;
> -	read_sq.max_active = numBufs;
> -	read_sq.block_size = bufSize;
> -	read_sq.buffers = read_buffers;
> -
> -	read_sq.front = read_sq.count = 0;
> -	read_sq.rear = 0;
> -	read_sq.rear_size = 0;
> -	read_sq.syncing = 0;
> -	read_sq.active = 0;
> -
> -	bdp = rx_base;
> -	for (i=0; i<numReadBufs; i++) {
> -		bdp->cbd_bufaddr = virt_to_bus(read_buffers[i]);
> -		bdp->cbd_datlen = read_sq.block_size;
> -		bdp++;
> -	}
> -
> -	/* This causes the SMC to sync up with the first buffer again.
> -	*/
> -	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_RX) | CPM_CR_FLG;
> -	while (cp->cp_cpcr & CPM_CR_FLG);
> -}
> -
> -
> -static void sq_play(void)
> -{
> -	(*sound.mach.play)();
> -}
> -
> -
> -/* ++TeSche: radically changed this one too */
> -
> -static ssize_t sq_write(struct file *file, const char *src, size_t uLeft,
> -			loff_t *ppos)
> -{
> -	ssize_t uWritten = 0;
> -	u_char *dest;
> -	ssize_t uUsed, bUsed, bLeft;
> -
> -	/* ++TeSche: Is something like this necessary?
> -	 * Hey, that's an honest question! Or does any other part of the
> -	 * filesystem already checks this situation? I really don't know.
> -	 */
> -	if (uLeft == 0)
> -		return 0;
> -
> -	/* The interrupt doesn't start to play the last, incomplete frame.
> -	 * Thus we can append to it without disabling the interrupts! (Note
> -	 * also that sq.rear isn't affected by the interrupt.)
> -	 */
> -
> -	if (sq.count > 0 && (bLeft = sq.block_size-sq.rear_size) > 0) {
> -		dest = sq_block_address(sq.rear);
> -		bUsed = sq.rear_size;
> -		uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
> -		if (uUsed <= 0)
> -			return uUsed;
> -		src += uUsed;
> -		uWritten += uUsed;
> -		uLeft -= uUsed;
> -		sq.rear_size = bUsed;
> -	}
> -
> -	do {
> -		while (sq.count == sq.max_active) {
> -			sq_play();
> -			if (NON_BLOCKING(sq.open_mode))
> -				return uWritten > 0 ? uWritten : -EAGAIN;
> -			SLEEP(sq.action_queue);
> -			if (SIGNAL_RECEIVED)
> -				return uWritten > 0 ? uWritten : -EINTR;
> -		}
> -
> -		/* Here, we can avoid disabling the interrupt by first
> -		 * copying and translating the data, and then updating
> -		 * the sq variables. Until this is done, the interrupt
> -		 * won't see the new frame and we can work on it
> -		 * undisturbed.
> -		 */
> -
> -		dest = sq_block_address((sq.rear+1) % sq.max_count);
> -		bUsed = 0;
> -		bLeft = sq.block_size;
> -		uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
> -		if (uUsed <= 0)
> -			break;
> -		src += uUsed;
> -		uWritten += uUsed;
> -		uLeft -= uUsed;
> -		if (bUsed) {
> -			sq.rear = (sq.rear+1) % sq.max_count;
> -			sq.rear_size = bUsed;
> -			sq.count++;
> -		}
> -	} while (bUsed);   /* uUsed may have been 0 */
> -
> -	sq_play();
> -
> -	return uUsed < 0? uUsed: uWritten;
> -}
> -
> -
> -/***********/
> -
> -/* Here is how the values are used for reading.
> - * The value 'active' simply indicates the DMA is running.  This is
> - * done so the driver semantics are DMA starts when the first read is
> - * posted.  The value 'front' indicates the buffer we should next
> - * send to the user.  The value 'rear' indicates the buffer the DMA is
> - * currently filling.  When 'front' == 'rear' the buffer "ring" is
> - * empty (we always have an empty available).  The 'rear_size' is used
> - * to track partial offsets into the current buffer.  Right now, I just keep
> - * The DMA running.  If the reader can't keep up, the interrupt tosses
> - * the oldest buffer.  We could also shut down the DMA in this case.
> - */
> -static ssize_t sq_read(struct file *file, char *dst, size_t uLeft,
> -                       loff_t *ppos)
> -{
> -
> -	ssize_t	uRead, bLeft, bUsed, uUsed;
> -
> -	if (uLeft == 0)
> -		return 0;
> -
> -	if (!read_sq.active)
> -		CS_Record();	/* Kick off the record process. */
> -
> -	uRead = 0;
> -
> -	/* Move what the user requests, depending upon other options.
> -	*/
> -	while (uLeft > 0) {
> -
> -		/* When front == rear, the DMA is not done yet.
> -		*/
> -		while (read_sq.front == read_sq.rear) {
> -			if (NON_BLOCKING(read_sq.open_mode)) {
> -			       return uRead > 0 ? uRead : -EAGAIN;
> -			}
> -			SLEEP(read_sq.action_queue);
> -			if (SIGNAL_RECEIVED)
> -				return uRead > 0 ? uRead : -EINTR;
> -		}
> -
> -		/* The amount we move is either what is left in the
> -		 * current buffer or what the user wants.
> -		 */
> -		bLeft = read_sq.block_size - read_sq.rear_size;
> -		bUsed = read_sq.rear_size;
> -		uUsed = sound_copy_translate_read(dst, uLeft,
> -			read_sq.buffers[read_sq.front], &bUsed, bLeft);
> -		if (uUsed <= 0)
> -			return uUsed;
> -		dst += uUsed;
> -		uRead += uUsed;
> -		uLeft -= uUsed;
> -		read_sq.rear_size += bUsed;
> -		if (read_sq.rear_size >= read_sq.block_size) {
> -			read_sq.rear_size = 0;
> -			read_sq.front++;
> -			if (read_sq.front >= read_sq.max_active)
> -				read_sq.front = 0;
> -		}
> -	}
> -	return uRead;
> -}
> -
> -static int sq_open(struct inode *inode, struct file *file)
> -{
> -	int rc = 0;
> -
> -	if (file->f_mode & FMODE_WRITE) {
> -		if (sq.busy) {
> -			rc = -EBUSY;
> -			if (NON_BLOCKING(file->f_flags))
> -				goto err_out;
> -			rc = -EINTR;
> -			while (sq.busy) {
> -				SLEEP(sq.open_queue);
> -				if (SIGNAL_RECEIVED)
> -					goto err_out;
> -			}
> -		}
> -		sq.busy = 1; /* Let's play spot-the-race-condition */
> -
> -		if (sq_allocate_buffers()) goto err_out_nobusy;
> -
> -		sq_setup(numBufs, bufSize<<10,sound_buffers);
> -		sq.open_mode = file->f_mode;
> -	}
> -
> -
> -	if (file->f_mode & FMODE_READ) {
> -		if (read_sq.busy) {
> -			rc = -EBUSY;
> -			if (NON_BLOCKING(file->f_flags))
> -				goto err_out;
> -			rc = -EINTR;
> -			while (read_sq.busy) {
> -				SLEEP(read_sq.open_queue);
> -				if (SIGNAL_RECEIVED)
> -					goto err_out;
> -			}
> -			rc = 0;
> -		}
> -		read_sq.busy = 1;
> -		if (sq_allocate_read_buffers()) goto err_out_nobusy;
> -
> -		read_sq_setup(numReadBufs,readbufSize<<10, sound_read_buffers);
> -		read_sq.open_mode = file->f_mode;
> -	}
> -
> -	/* Start up the 4218 by:
> -	 * Reset.
> -	 * Enable, unreset.
> -	 */
> -	*((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_RSTAUDIO;
> -	eieio();
> -	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_ENAUDIO;
> -	mdelay(50);
> -	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
> -
> -	/* We need to send the current control word in case someone
> -	 * opened /dev/mixer and changed things while we were shut
> -	 * down.  Chances are good the initialization that follows
> -	 * would have done this, but it is still possible it wouldn't.
> -	 */
> -	cs4218_ctl_write(cs4218_control);
> -
> -	sound.minDev = iminor(inode) & 0x0f;
> -	sound.soft = sound.dsp;
> -	sound.hard = sound.dsp;
> -	sound_init();
> -	if ((iminor(inode) & 0x0f) == SND_DEV_AUDIO) {
> -		sound_set_speed(8000);
> -		sound_set_stereo(0);
> -		sound_set_format(AFMT_MU_LAW);
> -	}
> -
> -	return nonseekable_open(inode, file);
> -
> -err_out_nobusy:
> -	if (file->f_mode & FMODE_WRITE) {
> -		sq.busy = 0;
> -		WAKE_UP(sq.open_queue);
> -	}
> -	if (file->f_mode & FMODE_READ) {
> -		read_sq.busy = 0;
> -		WAKE_UP(read_sq.open_queue);
> -	}
> -err_out:
> -	return rc;
> -}
> -
> -
> -static void sq_reset(void)
> -{
> -	sound_silence();
> -	sq.active = 0;
> -	sq.count = 0;
> -	sq.front = (sq.rear+1) % sq.max_count;
> -#if 0
> -	init_tdm_buffers();
> -#endif
> -}
> -
> -
> -static int sq_fsync(struct file *filp, struct dentry *dentry)
> -{
> -	int rc = 0;
> -
> -	sq.syncing = 1;
> -	sq_play();	/* there may be an incomplete frame waiting */
> -
> -	while (sq.active) {
> -		SLEEP(sq.sync_queue);
> -		if (SIGNAL_RECEIVED) {
> -			/* While waiting for audio output to drain, an
> -			 * interrupt occurred.  Stop audio output immediately
> -			 * and clear the queue. */
> -			sq_reset();
> -			rc = -EINTR;
> -			break;
> -		}
> -	}
> -
> -	sq.syncing = 0;
> -	return rc;
> -}
> -
> -static int sq_release(struct inode *inode, struct file *file)
> -{
> -	int rc = 0;
> -
> -	if (sq.busy)
> -		rc = sq_fsync(file, file->f_path.dentry);
> -	sound.soft = sound.dsp;
> -	sound.hard = sound.dsp;
> -	sound_silence();
> -
> -	sq_release_read_buffers();
> -	sq_release_buffers();
> -
> -	if (file->f_mode & FMODE_READ) {
> -		read_sq.busy = 0;
> -		WAKE_UP(read_sq.open_queue);
> -	}
> -
> -	if (file->f_mode & FMODE_WRITE) {
> -		sq.busy = 0;
> -		WAKE_UP(sq.open_queue);
> -	}
> -
> -	/* Shut down the SMC.
> -	*/
> -	cpmp->cp_smc[1].smc_smcmr &= ~(SMCMR_TEN | SMCMR_REN);
> -
> -	/* Shut down the codec.
> -	*/
> -	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
> -	eieio();
> -	*((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_ENAUDIO;
> -
> -	/* Wake up a process waiting for the queue being released.
> -	 * Note: There may be several processes waiting for a call
> -	 * to open() returning. */
> -
> -	return rc;
> -}
> -
> -
> -static int sq_ioctl(struct inode *inode, struct file *file, u_int cmd,
> -		    u_long arg)
> -{
> -	u_long fmt;
> -	int data;
> -#if 0
> -	int size, nbufs;
> -#else
> -	int size;
> -#endif
> -
> -	switch (cmd) {
> -	case SNDCTL_DSP_RESET:
> -		sq_reset();
> -		return 0;
> -	case SNDCTL_DSP_POST:
> -	case SNDCTL_DSP_SYNC:
> -		return sq_fsync(file, file->f_path.dentry);
> -
> -		/* ++TeSche: before changing any of these it's
> -		 * probably wise to wait until sound playing has
> -		 * settled down. */
> -	case SNDCTL_DSP_SPEED:
> -		sq_fsync(file, file->f_path.dentry);
> -		IOCTL_IN(arg, data);
> -		return IOCTL_OUT(arg, sound_set_speed(data));
> -	case SNDCTL_DSP_STEREO:
> -		sq_fsync(file, file->f_path.dentry);
> -		IOCTL_IN(arg, data);
> -		return IOCTL_OUT(arg, sound_set_stereo(data));
> -	case SOUND_PCM_WRITE_CHANNELS:
> -		sq_fsync(file, file->f_path.dentry);
> -		IOCTL_IN(arg, data);
> -		return IOCTL_OUT(arg, sound_set_stereo(data-1)+1);
> -	case SNDCTL_DSP_SETFMT:
> -		sq_fsync(file, file->f_path.dentry);
> -		IOCTL_IN(arg, data);
> -		return IOCTL_OUT(arg, sound_set_format(data));
> -	case SNDCTL_DSP_GETFMTS:
> -		fmt = 0;
> -		if (sound.trans_write) {
> -			if (sound.trans_write->ct_ulaw)
> -				fmt |= AFMT_MU_LAW;
> -			if (sound.trans_write->ct_alaw)
> -				fmt |= AFMT_A_LAW;
> -			if (sound.trans_write->ct_s8)
> -				fmt |= AFMT_S8;
> -			if (sound.trans_write->ct_u8)
> -				fmt |= AFMT_U8;
> -			if (sound.trans_write->ct_s16be)
> -				fmt |= AFMT_S16_BE;
> -			if (sound.trans_write->ct_u16be)
> -				fmt |= AFMT_U16_BE;
> -			if (sound.trans_write->ct_s16le)
> -				fmt |= AFMT_S16_LE;
> -			if (sound.trans_write->ct_u16le)
> -				fmt |= AFMT_U16_LE;
> -		}
> -		return IOCTL_OUT(arg, fmt);
> -	case SNDCTL_DSP_GETBLKSIZE:
> -		size = sq.block_size
> -			* sound.soft.size * (sound.soft.stereo + 1)
> -			/ (sound.hard.size * (sound.hard.stereo + 1));
> -		return IOCTL_OUT(arg, size);
> -	case SNDCTL_DSP_SUBDIVIDE:
> -		break;
> -#if 0	/* Sorry can't do this at the moment.  The CPM allocated buffers
> -	 * long ago that can't be changed.
> -	 */
> -	case SNDCTL_DSP_SETFRAGMENT:
> -		if (sq.count || sq.active || sq.syncing)
> -			return -EINVAL;
> -		IOCTL_IN(arg, size);
> -		nbufs = size >> 16;
> -		if (nbufs < 2 || nbufs > numBufs)
> -			nbufs = numBufs;
> -		size &= 0xffff;
> -		if (size >= 8 && size <= 30) {
> -			size = 1 << size;
> -			size *= sound.hard.size * (sound.hard.stereo + 1);
> -			size /= sound.soft.size * (sound.soft.stereo + 1);
> -			if (size > (bufSize << 10))
> -				size = bufSize << 10;
> -		} else
> -			size = bufSize << 10;
> -		sq_setup(numBufs, size, sound_buffers);
> -		sq.max_active = nbufs;
> -		return 0;
> -#endif
> -
> -	default:
> -		return mixer_ioctl(inode, file, cmd, arg);
> -	}
> -	return -EINVAL;
> -}
> -
> -
> -
> -static const struct file_operations sq_fops =
> -{
> -	.owner =	THIS_MODULE,
> -	.llseek =	sound_lseek,
> -	.read =		sq_read,			/* sq_read */
> -	.write =	sq_write,
> -	.ioctl =	sq_ioctl,
> -	.open =		sq_open,
> -	.release =	sq_release,
> -};
> -
> -
> -static void __init sq_init(void)
> -{
> -	sq_unit = register_sound_dsp(&sq_fops, -1);
> -	if (sq_unit < 0)
> -		return;
> -
> -	init_waitqueue_head(&sq.action_queue);
> -	init_waitqueue_head(&sq.open_queue);
> -	init_waitqueue_head(&sq.sync_queue);
> -	init_waitqueue_head(&read_sq.action_queue);
> -	init_waitqueue_head(&read_sq.open_queue);
> -	init_waitqueue_head(&read_sq.sync_queue);
> -
> -	sq.busy = 0;
> -	read_sq.busy = 0;
> -
> -	/* whatever you like as startup mode for /dev/dsp,
> -	 * (/dev/audio hasn't got a startup mode). note that
> -	 * once changed a new open() will *not* restore these!
> -	 */
> -	sound.dsp.format = AFMT_S16_BE;
> -	sound.dsp.stereo = 1;
> -	sound.dsp.size = 16;
> -
> -	/* set minimum rate possible without expanding */
> -	sound.dsp.speed = 8000;
> -
> -	/* before the first open to /dev/dsp this wouldn't be set */
> -	sound.soft = sound.dsp;
> -	sound.hard = sound.dsp;
> -
> -	sound_silence();
> -}
> -
> -/*
> - * /dev/sndstat
> - */
> -
> -
> -/* state.buf should not overflow! */
> -
> -static int state_open(struct inode *inode, struct file *file)
> -{
> -	char *buffer = state.buf, *mach = "", cs4218_buf[50];
> -	int len = 0;
> -
> -	if (state.busy)
> -		return -EBUSY;
> -
> -	state.ptr = 0;
> -	state.busy = 1;
> -
> -	sprintf(cs4218_buf, "Crystal CS4218 on TDM, ");
> -	mach = cs4218_buf;
> -
> -	len += sprintf(buffer+len, "%sDMA sound driver:\n", mach);
> -
> -	len += sprintf(buffer+len, "\tsound.format = 0x%x", sound.soft.format);
> -	switch (sound.soft.format) {
> -	case AFMT_MU_LAW:
> -		len += sprintf(buffer+len, " (mu-law)");
> -		break;
> -	case AFMT_A_LAW:
> -		len += sprintf(buffer+len, " (A-law)");
> -		break;
> -	case AFMT_U8:
> -		len += sprintf(buffer+len, " (unsigned 8 bit)");
> -		break;
> -	case AFMT_S8:
> -		len += sprintf(buffer+len, " (signed 8 bit)");
> -		break;
> -	case AFMT_S16_BE:
> -		len += sprintf(buffer+len, " (signed 16 bit big)");
> -		break;
> -	case AFMT_U16_BE:
> -		len += sprintf(buffer+len, " (unsigned 16 bit big)");
> -		break;
> -	case AFMT_S16_LE:
> -		len += sprintf(buffer+len, " (signed 16 bit little)");
> -		break;
> -	case AFMT_U16_LE:
> -		len += sprintf(buffer+len, " (unsigned 16 bit little)");
> -		break;
> -	}
> -	len += sprintf(buffer+len, "\n");
> -	len += sprintf(buffer+len, "\tsound.speed = %dHz (phys. %dHz)\n",
> -		       sound.soft.speed, sound.hard.speed);
> -	len += sprintf(buffer+len, "\tsound.stereo = 0x%x (%s)\n",
> -		       sound.soft.stereo, sound.soft.stereo ? "stereo" : "mono");
> -	len += sprintf(buffer+len, "\tsq.block_size = %d sq.max_count = %d"
> -		       " sq.max_active = %d\n",
> -		       sq.block_size, sq.max_count, sq.max_active);
> -	len += sprintf(buffer+len, "\tsq.count = %d sq.rear_size = %d\n", sq.count,
> -		       sq.rear_size);
> -	len += sprintf(buffer+len, "\tsq.active = %d sq.syncing = %d\n",
> -		       sq.active, sq.syncing);
> -	state.len = len;
> -	return nonseekable_open(inode, file);
> -}
> -
> -
> -static int state_release(struct inode *inode, struct file *file)
> -{
> -	state.busy = 0;
> -	return 0;
> -}
> -
> -
> -static ssize_t state_read(struct file *file, char *buf, size_t count,
> -			  loff_t *ppos)
> -{
> -	int n = state.len - state.ptr;
> -	if (n > count)
> -		n = count;
> -	if (n <= 0)
> -		return 0;
> -	if (copy_to_user(buf, &state.buf[state.ptr], n))
> -		return -EFAULT;
> -	state.ptr += n;
> -	return n;
> -}
> -
> -
> -static const struct file_operations state_fops =
> -{
> -	.owner =	THIS_MODULE,
> -	.llseek =	sound_lseek,
> -	.read =		state_read,
> -	.open =		state_open,
> -	.release =	state_release,
> -};
> -
> -
> -static void __init state_init(void)
> -{
> -	state_unit = register_sound_special(&state_fops, SND_DEV_STATUS);
> -	if (state_unit < 0)
> -		return;
> -	state.busy = 0;
> -}
> -
> -
> -/*** Common stuff ********************************************************/
> -
> -static long long sound_lseek(struct file *file, long long offset, int orig)
> -{
> -	return -ESPIPE;
> -}
> -
> -
> -/*** Config & Setup **********************************************************/
> -
> -
> -int __init tdm8xx_sound_init(void)
> -{
> -	int i, has_sound;
> -	uint			dp_offset;
> -	volatile uint		*sirp;
> -	volatile cbd_t		*bdp;
> -	volatile cpm8xx_t	*cp;
> -	volatile smc_t		*sp;
> -	volatile smc_uart_t	*up;
> -	volatile immap_t	*immap;
> -
> -	has_sound = 0;
> -
> -	/* Program the SI/TSA to use TDMa, connected to SMC2, for 4 bytes.
> -	*/
> -	cp = cpmp;	/* Get pointer to Communication Processor */
> -	immap = (immap_t *)IMAP_ADDR;	/* and to internal registers */
> -
> -	/* Set all TDMa control bits to zero.  This enables most features
> -	 * we want.
> -	 */
> -	cp->cp_simode &= ~0x00000fff;
> -
> -	/* Enable common receive/transmit clock pins, use IDL format.
> -	 * Sync on falling edge, transmit rising clock, receive falling
> -	 * clock, delay 1 bit on both Tx and Rx.  Common Tx/Rx clocks and
> -	 * sync.
> -	 * Connect SMC2 to TSA.
> -	 */
> -	cp->cp_simode |= 0x80000141;
> -
> -	/* Configure port A pins for TDMa operation.
> -	 * The RPX-Lite (MPC850/823) loses SMC2 when TDM is used.
> -	 */
> -	immap->im_ioport.iop_papar |= 0x01c0; /* Enable TDMa functions */
> -	immap->im_ioport.iop_padir |= 0x00c0; /* Enable TDMa Tx/Rx */
> -	immap->im_ioport.iop_padir &= ~0x0100; /* Enable L1RCLKa */
> -
> -	immap->im_ioport.iop_pcpar |= 0x0800; /* Enable L1RSYNCa */
> -	immap->im_ioport.iop_pcdir &= ~0x0800;
> -
> -	/* Initialize the SI TDM routing table.  We use TDMa only.
> -	 * The receive table and transmit table each have only one
> -	 * entry, to capture/send four bytes after each frame pulse.
> -	 * The 16-bit ram entry is 0000 0001 1000 1111. (SMC2)
> -	 */
> -	cp->cp_sigmr = 0;
> -	sirp = (uint *)cp->cp_siram;
> -
> -	*sirp = 0x018f0000;		/* Receive entry */
> -	sirp += 64;
> -	*sirp = 0x018f0000;		/* Tramsmit entry */
> -
> -	/* Enable single TDMa routing.
> -	*/
> -	cp->cp_sigmr = 0x04;
> -
> -	/* Initialize the SMC for transparent operation.
> -	*/
> -	sp = &cpmp->cp_smc[1];
> -	up = (smc_uart_t *)&cp->cp_dparam[PROFF_SMC2];
> -
> -	/* We need to allocate a transmit and receive buffer
> -	 * descriptors from dual port ram.
> -	 */
> -	dp_addr = cpm_dpalloc(sizeof(cbd_t) * numReadBufs, 8);
> -
> -	/* Set the physical address of the host memory
> -	 * buffers in the buffer descriptors, and the
> -	 * virtual address for us to work with.
> -	 */
> -	bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
> -	up->smc_rbase = dp_offset;
> -	rx_cur = rx_base = (cbd_t *)bdp;
> -
> -	for (i=0; i<(numReadBufs-1); i++) {
> -		bdp->cbd_bufaddr = 0;
> -		bdp->cbd_datlen = 0;
> -		bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT;
> -		bdp++;
> -	}
> -	bdp->cbd_bufaddr = 0;
> -	bdp->cbd_datlen = 0;
> -	bdp->cbd_sc = BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT;
> -
> -	/* Now, do the same for the transmit buffers.
> -	*/
> -	dp_offset = cpm_dpalloc(sizeof(cbd_t) * numBufs, 8);
> -
> -	bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
> -	up->smc_tbase = dp_offset;
> -	tx_cur = tx_base = (cbd_t *)bdp;
> -
> -	for (i=0; i<(numBufs-1); i++) {
> -		bdp->cbd_bufaddr = 0;
> -		bdp->cbd_datlen = 0;
> -		bdp->cbd_sc = BD_SC_INTRPT;
> -		bdp++;
> -	}
> -	bdp->cbd_bufaddr = 0;
> -	bdp->cbd_datlen = 0;
> -	bdp->cbd_sc = (BD_SC_WRAP | BD_SC_INTRPT);
> -
> -	/* Set transparent SMC mode.
> -	 * A few things are specific to our application.  The codec interface
> -	 * is MSB first, hence the REVD selection.  The CD/CTS pulse are
> -	 * used by the TSA to indicate the frame start to the SMC.
> -	 */
> -	up->smc_rfcr = SCC_EB;
> -	up->smc_tfcr = SCC_EB;
> -	up->smc_mrblr = readbufSize * 1024;
> -
> -	/* Set 16-bit reversed data, transparent mode.
> -	*/
> -	sp->smc_smcmr = smcr_mk_clen(15) |
> -		SMCMR_SM_TRANS | SMCMR_REVD | SMCMR_BS;
> -
> -	/* Enable and clear events.
> -	 * Because of FIFO delays, all we need is the receive interrupt
> -	 * and we can process both the current receive and current
> -	 * transmit interrupt within a few microseconds of the transmit.
> -	 */
> -	sp->smc_smce = 0xff;
> -	sp->smc_smcm = SMCM_TXE | SMCM_TX | SMCM_RX;
> -
> -	/* Send the CPM an initialize command.
> -	*/
> -	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
> -				CPM_CR_INIT_TRX) | CPM_CR_FLG;
> -	while (cp->cp_cpcr & CPM_CR_FLG);
> -
> -	sound.mach = mach_cs4218;
> -	has_sound = 1;
> -
> -	/* Initialize beep stuff */
> -	orig_mksound = kd_mksound;
> -	kd_mksound = cs_mksound;
> -	beep_buf = kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
> -	if (beep_buf == NULL)
> -		printk(KERN_WARNING "dmasound: no memory for "
> -		       "beep buffer\n");
> -
> -	if (!has_sound)
> -		return -ENODEV;
> -
> -	/* Initialize the software SPI.
> -	*/
> -	sw_spi_init();
> -
> -	/* Set up sound queue, /dev/audio and /dev/dsp. */
> -
> -	/* Set default settings. */
> -	sq_init();
> -
> -	/* Set up /dev/sndstat. */
> -	state_init();
> -
> -	/* Set up /dev/mixer. */
> -	mixer_init();
> -
> -	if (!sound.mach.irqinit()) {
> -		printk(KERN_ERR "DMA sound driver: Interrupt initialization failed\n");
> -		return -ENODEV;
> -	}
> -#ifdef MODULE
> -	irq_installed = 1;
> -#endif
> -
> -	printk(KERN_INFO "DMA sound driver installed, using %d buffers of %dk.\n",
> -	       numBufs, bufSize);
> -
> -	return 0;
> -}
> -
> -/* Due to FIFOs and bit delays, the transmit interrupt occurs a few
> - * microseconds ahead of the receive interrupt.
> - * When we get an interrupt, we service the transmit first, then
> - * check for a receive to prevent the overhead of returning through
> - * the interrupt handler only to get back here right away during
> - * full duplex operation.
> - */
> -static void
> -cs4218_intr(void *dev_id)
> -{
> -	volatile smc_t	*sp;
> -	volatile cpm8xx_t	*cp;
> -
> -	sp = &cpmp->cp_smc[1];
> -
> -	if (sp->smc_smce & SCCM_TX) {
> -		sp->smc_smce = SCCM_TX;
> -		cs4218_tdm_tx_intr((void *)sp);
> -	}
> -
> -	if (sp->smc_smce & SCCM_RX) {
> -		sp->smc_smce = SCCM_RX;
> -		cs4218_tdm_rx_intr((void *)sp);
> -	}
> -
> -	if (sp->smc_smce & SCCM_TXE) {
> -		/* Transmit underrun.  This happens with the application
> -		 * didn't keep up sending buffers.  We tell the SMC to
> -		 * restart, which will cause it to poll the current (next)
> -		 * BD.  If the user supplied data since this occurred,
> -		 * we just start running again.  If they didn't, the SMC
> -		 * will poll the descriptor until data is placed there.
> -		 */
> -		sp->smc_smce = SCCM_TXE;
> -		cp = cpmp;	/* Get pointer to Communication Processor */
> -		cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
> -					CPM_CR_RESTART_TX) | CPM_CR_FLG;
> -		while (cp->cp_cpcr & CPM_CR_FLG);
> -	}
> -}
> -
> -
> -#define MAXARGS		8	/* Should be sufficient for now */
> -
> -void __init dmasound_setup(char *str, int *ints)
> -{
> -	/* check the bootstrap parameter for "dmasound=" */
> -
> -	switch (ints[0]) {
> -	case 3:
> -		if ((ints[3] < 0) || (ints[3] > MAX_CATCH_RADIUS))
> -			printk("dmasound_setup: invalid catch radius, using default = %d\n", catchRadius);
> -		else
> -			catchRadius = ints[3];
> -		/* fall through */
> -	case 2:
> -		if (ints[1] < MIN_BUFFERS)
> -			printk("dmasound_setup: invalid number of buffers, using default = %d\n", numBufs);
> -		else
> -			numBufs = ints[1];
> -		if (ints[2] < MIN_BUFSIZE || ints[2] > MAX_BUFSIZE)
> -			printk("dmasound_setup: invalid buffer size, using default = %d\n", bufSize);
> -		else
> -			bufSize = ints[2];
> -		break;
> -	case 0:
> -		break;
> -	default:
> -		printk("dmasound_setup: invalid number of arguments\n");
> -	}
> -}
> -
> -/* Software SPI functions.
> - * These are on Port B.
> - */
> -#define PB_SPICLK	((uint)0x00000002)
> -#define PB_SPIMOSI	((uint)0x00000004)
> -#define PB_SPIMISO	((uint)0x00000008)
> -
> -static
> -void	sw_spi_init(void)
> -{
> -	volatile cpm8xx_t	*cp;
> -	volatile uint		*hcsr4;
> -
> -	hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
> -	cp = cpmp;	/* Get pointer to Communication Processor */
> -
> -	*hcsr4 &= ~HIOX_CSR4_AUDSPISEL;	/* Disable SPI select */
> -
> -	/* Make these Port B signals general purpose I/O.
> -	 * First, make sure the clock is low.
> -	 */
> -	cp->cp_pbdat &= ~PB_SPICLK;
> -	cp->cp_pbpar &= ~(PB_SPICLK | PB_SPIMOSI | PB_SPIMISO);
> -
> -	/* Clock and Master Output are outputs.
> -	*/
> -	cp->cp_pbdir |= (PB_SPICLK | PB_SPIMOSI);
> -
> -	/* Master Input.
> -	*/
> -	cp->cp_pbdir &= ~PB_SPIMISO;
> -
> -}
> -
> -/* Write the CS4218 control word out the SPI port.  While the
> - * the control word is going out, the status word is arriving.
> - */
> -static
> -uint	cs4218_ctl_write(uint ctlreg)
> -{
> -	uint	status;
> -
> -	sw_spi_io((u_char *)&ctlreg, (u_char *)&status, 4);
> -
> -	/* Shadow the control register.....I guess we could do
> -	 * the same for the status, but for now we just return it
> -	 * and let the caller decide.
> -	 */
> -	cs4218_control = ctlreg;
> -	return status;
> -}
> -
> -static
> -void	sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt)
> -{
> -	int	bits, i;
> -	u_char	outbyte, inbyte;
> -	volatile cpm8xx_t	*cp;
> -	volatile uint		*hcsr4;
> -
> -	hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
> -	cp = cpmp;	/* Get pointer to Communication Processor */
> -
> -	/* The timing on the bus is pretty slow.  Code inefficiency
> -	 * and eieio() is our friend here :-).
> -	 */
> -	cp->cp_pbdat &= ~PB_SPICLK;
> -	*hcsr4 |= HIOX_CSR4_AUDSPISEL;	/* Enable SPI select */
> -	eieio();
> -
> -	/* Clock in/out the bytes.  Data is valid on the falling edge
> -	 * of the clock.  Data is MSB first.
> -	 */
> -	for (i=0; i<bcnt; i++) {
> -		outbyte = *obuf++;
> -		inbyte = 0;
> -		for (bits=0; bits<8; bits++) {
> -			eieio();
> -			cp->cp_pbdat |= PB_SPICLK;
> -			eieio();
> -			if (outbyte & 0x80)
> -				cp->cp_pbdat |= PB_SPIMOSI;
> -			else
> -				cp->cp_pbdat &= ~PB_SPIMOSI;
> -			eieio();
> -			cp->cp_pbdat &= ~PB_SPICLK;
> -			eieio();
> -			outbyte <<= 1;
> -			inbyte <<= 1;
> -			if (cp->cp_pbdat & PB_SPIMISO)
> -				inbyte |= 1;
> -		}
> -		*ibuf++ = inbyte;
> -	}
> -
> -	*hcsr4 &= ~HIOX_CSR4_AUDSPISEL;	/* Disable SPI select */
> -	eieio();
> -}
> -
> -void cleanup_module(void)
> -{
> -	if (irq_installed) {
> -		sound_silence();
> -#ifdef MODULE
> -		sound.mach.irqcleanup();
> -#endif
> -	}
> -
> -	sq_release_read_buffers();
> -	sq_release_buffers();
> -
> -	if (mixer_unit >= 0)
> -		unregister_sound_mixer(mixer_unit);
> -	if (state_unit >= 0)
> -		unregister_sound_special(state_unit);
> -	if (sq_unit >= 0)
> -		unregister_sound_dsp(sq_unit);
> -}
> -
> -module_init(tdm8xx_sound_init);
> -module_exit(cleanup_module);
> -
> -

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [RFC: 2.6 patch] powerpc: remove the unused HTDMSOUND driver
  2007-03-26 23:52 ` Marcelo Tosatti
@ 2007-03-27 20:13   ` Dan Malek
  0 siblings, 0 replies; 4+ messages in thread
From: Dan Malek @ 2007-03-27 20:13 UTC (permalink / raw)
  To: Marcelo Tosatti
  Cc: Adrian Bunk, linux-kernel, linuxppc-dev, paulus,
	linuxppc-embedded, Andrew Morton


On Mar 26, 2007, at 7:52 PM, Marcelo Tosatti wrote:

> Shall this driver be removed?

May as well.  I'm probably the only one in the
world with the hardware.  If I need a driver I'll
just write another one :-)

Thanks.

	-- Dan


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [RFC: 2.6 patch] powerpc: remove the unused HTDMSOUND driver
@ 2007-03-07 22:41 Adrian Bunk
  0 siblings, 0 replies; 4+ messages in thread
From: Adrian Bunk @ 2007-03-07 22:41 UTC (permalink / raw)
  To: marcelo; +Cc: linuxppc-embedded, paulus, linuxppc-dev, linux-kernel

Recently, someone fixed a syntax error in the HTDMSOUND driver 
introduced 4 years ago.

Unfortunately not by trying to compile this driver for his hardware but 
by code inspection - which seems to be a strong indication that there 
are no users left for this OSS sound driver.

This patch therefore removes it.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

---

 arch/ppc/8xx_io/Kconfig         |    4 
 arch/ppc/8xx_io/Makefile        |    1 
 arch/ppc/8xx_io/cs4218.h        |  166 -
 arch/ppc/8xx_io/cs4218_tdm.c    | 2833 --------------------------------
 arch/ppc/platforms/rpxclassic.h |    4 
 arch/ppc/platforms/rpxhiox.h    |   41 
 arch/ppc/platforms/rpxlite.h    |    4 
 arch/ppc/syslib/m8xx_setup.c    |    2 
 8 files changed, 1 insertion(+), 3054 deletions(-)

--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig.old	2007-03-06 06:47:04.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig	2007-03-06 06:47:16.000000000 +0100
@@ -74,10 +74,6 @@
 	  Allocate large buffers for MPC8xx Ethernet. Increases throughput
 	  and decreases the likelihood of dropped packets, but costs memory.
 
-config HTDMSOUND
-	bool "Embedded Planet HIOX Audio"
-	depends on SOUND=y
-
 # This doesn't really belong here, but it is convenient to ask
 # 8xx specific questions.
 comment "Generic MPC8xx Options"
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile.old	2007-03-06 06:47:23.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile	2007-03-06 06:47:30.000000000 +0100
@@ -7,4 +7,3 @@
 obj-$(CONFIG_FEC_ENET)	+= fec.o
 obj-$(CONFIG_SCC_ENET)	+= enet.o
 obj-$(CONFIG_UCODE_PATCH) += micropatch.o
-obj-$(CONFIG_HTDMSOUND) += cs4218_tdm.o
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h.old	2007-03-06 06:49:05.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h	2007-03-06 06:49:41.000000000 +0100
@@ -57,10 +57,6 @@
 #define BCSR1_PCVCTL6          ((uint)0x00020000)
 #define BCSR1_PCVCTL7          ((uint)0x00010000)
 
-#if defined(CONFIG_HTDMSOUND)
-#include <platforms/rpxhiox.h>
-#endif
-
 /* define IO_BASE for pcmcia */
 #define _IO_BASE 0x80000000
 #define _IO_BASE_SIZE 0x1000
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h.old	2007-03-06 06:49:51.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h	2007-03-06 06:49:56.000000000 +0100
@@ -69,10 +69,6 @@
 #define BCSR2_QSPACESEL		((uint)0x00004000)
 #define BCSR2_FETHLEDMODE	((uint)0x00000800)	/* CLLF */
 
-#if defined(CONFIG_HTDMSOUND)
-#include <platforms/rpxhiox.h>
-#endif
-
 /* define IO_BASE for pcmcia, CLLF only */
 #if !defined(CONFIG_PCI)
 #define _IO_BASE 0x80000000
--- linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c.old	2007-03-06 06:50:43.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c	2007-03-06 06:50:59.000000000 +0100
@@ -413,7 +413,7 @@
 	io_block_mapping(_IO_BASE,_IO_BASE,_IO_BASE_SIZE, _PAGE_IO);
 #endif
 #endif
-#if defined(CONFIG_HTDMSOUND) || defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
+#if defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
 	io_block_mapping(HIOX_CSR_ADDR, HIOX_CSR_ADDR, HIOX_CSR_SIZE, _PAGE_IO);
 #endif
 #ifdef CONFIG_FADS
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxhiox.h	2007-02-04 19:44:54.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,41 +0,0 @@
-/*
- * The Embedded Planet HIOX expansion card definitions.
- * There were a few different versions of these cards, but only
- * the one that escaped real production is defined here.
- *
- * Copyright (c) 2000 Dan Malek (dmalek@jlc.net)
- */
-#ifndef __MACH_RPX_HIOX_DEFS
-#define __MACH_RPX_HIOX_DEFS
-
-#define HIOX_CSR_ADDR		((uint)0xfac00000)
-#define HIOX_CSR_SIZE		((uint)(4 * 1024))
-#define HIOX_CSR0_ADDR		HIOX_CSR_ADDR
-#define HIOX_CSR4_ADDR		((uint)0xfac00004)
-
-#define HIOX_CSR0_DEFAULT	((uint)0x380f3c00)
-#define HIOX_CSR0_ENSCC2	((uint)0x80000000)
-#define HIOX_CSR0_ENSMC2	((uint)0x04000000)
-#define HIOX_CSR0_ENVDOCLK	((uint)0x02000000)
-#define HIOX_CSR0_VDORST_HL	((uint)0x01000000)
-#define HIOX_CSR0_RS232SEL	((uint)0x0000c000)
-#define HIOX_CSR0_SCC3SEL	((uint)0x0000c000)
-#define HIOX_CSR0_SMC1SEL	((uint)0x00008000)
-#define HIOX_CSR0_SCC1SEL	((uint)0x00004000)
-#define HIOX_CSR0_ENTOUCH	((uint)0x00000080)
-#define HIOX_CSR0_PDOWN100	((uint)0x00000060)
-#define HIOX_CSR0_PDOWN10	((uint)0x00000040)
-#define HIOX_CSR0_PDOWN1	((uint)0x00000020)
-#define HIOX_CSR0_TSELSPI	((uint)0x00000010)
-#define HIOX_CSR0_TIRQSTAT	((uint)0x00000008)
-#define HIOX_CSR4_DEFAULT	((uint)0x00000000)
-#define HIOX_CSR4_ENTIRQ2	((uint)0x20000000)
-#define HIOX_CSR4_ENTIRQ3	((uint)0x10000000)
-#define HIOX_CSR4_ENAUDIO	((uint)0x00000080)
-#define HIOX_CSR4_RSTAUDIO	((uint)0x00000040)	/* 0 == reset */
-#define HIOX_CSR4_AUDCLKHI	((uint)0x00000020)
-#define HIOX_CSR4_AUDSPISEL	((uint)0x00000010)
-#define HIOX_CSR4_AUDIRQSTAT	((uint)0x00000008)
-#define HIOX_CSR4_AUDCLKSEL	((uint)0x00000007)
-
-#endif
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218.h	2007-02-04 19:44:54.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,166 +0,0 @@
-#ifndef _cs4218_h_
-/*
- *  Hacked version of linux/drivers/sound/dmasound/dmasound.h
- *
- *
- *  Minor numbers for the sound driver.
- *
- *  Unfortunately Creative called the codec chip of SB as a DSP. For this
- *  reason the /dev/dsp is reserved for digitized audio use. There is a
- *  device for true DSP processors but it will be called something else.
- *  In v3.0 it's /dev/sndproc but this could be a temporary solution.
- */
-#define _cs4218_h_
-
-#include <linux/types.h>
-
-#define SND_NDEVS	256	/* Number of supported devices */
-#define SND_DEV_CTL	0	/* Control port /dev/mixer */
-#define SND_DEV_SEQ	1	/* Sequencer output /dev/sequencer (FM
-				   synthesizer and MIDI output) */
-#define SND_DEV_MIDIN	2	/* Raw midi access */
-#define SND_DEV_DSP	3	/* Digitized voice /dev/dsp */
-#define SND_DEV_AUDIO	4	/* Sparc compatible /dev/audio */
-#define SND_DEV_DSP16	5	/* Like /dev/dsp but 16 bits/sample */
-#define SND_DEV_STATUS	6	/* /dev/sndstat */
-/* #7 not in use now. Was in 2.4. Free for use after v3.0. */
-#define SND_DEV_SEQ2	8	/* /dev/sequencer, level 2 interface */
-#define SND_DEV_SNDPROC 9	/* /dev/sndproc for programmable devices */
-#define SND_DEV_PSS	SND_DEV_SNDPROC
-
-/* switch on various prinks */
-#define DEBUG_DMASOUND 1
-
-#define MAX_AUDIO_DEV	5
-#define MAX_MIXER_DEV	4
-#define MAX_SYNTH_DEV	3
-#define MAX_MIDI_DEV	6
-#define MAX_TIMER_DEV	3
-
-#define MAX_CATCH_RADIUS	10
-
-#define le2be16(x)	(((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
-#define le2be16dbl(x)	(((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
-
-#define IOCTL_IN(arg, ret) \
-	do { int error = get_user(ret, (int *)(arg)); \
-		if (error) return error; \
-	} while (0)
-#define IOCTL_OUT(arg, ret)	ioctl_return((int *)(arg), ret)
-
-static inline int ioctl_return(int *addr, int value)
-{
-	return value < 0 ? value : put_user(value, addr);
-}
-
-#define HAS_RECORD
-
-    /*
-     *  Initialization
-     */
-
-/* description of the set-up applies to either hard or soft settings */
-
-typedef struct {
-    int format;		/* AFMT_* */
-    int stereo;		/* 0 = mono, 1 = stereo */
-    int size;		/* 8/16 bit*/
-    int speed;		/* speed */
-} SETTINGS;
-
-    /*
-     *  Machine definitions
-     */
-
-typedef struct {
-    const char *name;
-    const char *name2;
-    void (*open)(void);
-    void (*release)(void);
-    void *(*dma_alloc)(unsigned int, gfp_t);
-    void (*dma_free)(void *, unsigned int);
-    int (*irqinit)(void);
-#ifdef MODULE
-    void (*irqcleanup)(void);
-#endif
-    void (*init)(void);
-    void (*silence)(void);
-    int (*setFormat)(int);
-    int (*setVolume)(int);
-    int (*setBass)(int);
-    int (*setTreble)(int);
-    int (*setGain)(int);
-    void (*play)(void);
-    void (*record)(void);		/* optional */
-    void (*mixer_init)(void);		/* optional */
-    int (*mixer_ioctl)(u_int, u_long);	/* optional */
-    int (*write_sq_setup)(void);	/* optional */
-    int (*read_sq_setup)(void);		/* optional */
-    int (*sq_open)(mode_t);		/* optional */
-    int (*state_info)(char *, size_t);	/* optional */
-    void (*abort_read)(void);		/* optional */
-    int min_dsp_speed;
-    int max_dsp_speed;
-    int version ;
-    int hardware_afmts ;		/* OSS says we only return h'ware info */
-					/* when queried via SNDCTL_DSP_GETFMTS */
-    int capabilities ;		/* low-level reply to SNDCTL_DSP_GETCAPS */
-    SETTINGS default_hard ;	/* open() or init() should set something valid */
-    SETTINGS default_soft ;	/* you can make it look like old OSS, if you want to */
-} MACHINE;
-
-    /*
-     *  Low level stuff
-     */
-
-typedef struct {
-    ssize_t (*ct_ulaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_alaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_s8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_u8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_s16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_u16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_s16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-    ssize_t (*ct_u16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-} TRANS;
-
-
-    /*
-     * Sound queue stuff, the heart of the driver
-     */
-
-struct sound_queue {
-    /* buffers allocated for this queue */
-    int numBufs;		/* real limits on what the user can have */
-    int bufSize;		/* in bytes */
-    char **buffers;
-
-    /* current parameters */
-    int locked ;		/* params cannot be modified when != 0 */
-    int user_frags ;		/* user requests this many */
-    int user_frag_size ;	/* of this size */
-    int max_count;		/* actual # fragments <= numBufs */
-    int block_size;		/* internal block size in bytes */
-    int max_active;		/* in-use fragments <= max_count */
-
-    /* it shouldn't be necessary to declare any of these volatile */
-    int front, rear, count;
-    int rear_size;
-    /*
-     *	The use of the playing field depends on the hardware
-     *
-     *	Atari, PMac: The number of frames that are loaded/playing
-     *
-     *	Amiga: Bit 0 is set: a frame is loaded
-     *	       Bit 1 is set: a frame is playing
-     */
-    int active;
-    wait_queue_head_t action_queue, open_queue, sync_queue;
-    int open_mode;
-    int busy, syncing, xruns, died;
-};
-
-#define SLEEP(queue)		interruptible_sleep_on_timeout(&queue, HZ)
-#define WAKE_UP(queue)		(wake_up_interruptible(&queue))
-
-#endif /* _cs4218_h_ */
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218_tdm.c	2007-03-02 20:14:59.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,2833 +0,0 @@
-
-/* This is a modified version of linux/drivers/sound/dmasound.c to
- * support the CS4218 codec on the 8xx TDM port.  Thanks to everyone
- * that contributed to the dmasound software (which includes me :-).
- *
- * The CS4218 is configured in Mode 4, sub-mode 0.  This provides
- * left/right data only on the TDM port, as a 32-bit word, per frame
- * pulse.  The control of the CS4218 is provided by some other means,
- * like the SPI port.
- * Dan Malek (dmalek@jlc.net)
- */
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/major.h>
-#include <linux/fcntl.h>
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/sound.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-/* Should probably do something different with this path name.....
- * Actually, I should just stop using it...
- */
-#include "cs4218.h"
-#include <linux/soundcard.h>
-
-#include <asm/mpc8xx.h>
-#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
-
-#define DMASND_CS4218		5
-
-#define MAX_CATCH_RADIUS	10
-#define MIN_BUFFERS		4
-#define MIN_BUFSIZE 		4
-#define MAX_BUFSIZE		128
-
-#define HAS_8BIT_TABLES
-
-static int sq_unit = -1;
-static int mixer_unit = -1;
-static int state_unit = -1;
-static int irq_installed = 0;
-static char **sound_buffers = NULL;
-static char **sound_read_buffers = NULL;
-
-static DEFINE_SPINLOCK(cs4218_lock);
-
-/* Local copies of things we put in the control register.  Output
- * volume, like most codecs is really attenuation.
- */
-static int cs4218_rate_index;
-
-/*
- * Stuff for outputting a beep.  The values range from -327 to +327
- * so we can multiply by an amplitude in the range 0..100 to get a
- * signed short value to put in the output buffer.
- */
-static short beep_wform[256] = {
-	0,	40,	79,	117,	153,	187,	218,	245,
-	269,	288,	304,	316,	323,	327,	327,	324,
-	318,	310,	299,	288,	275,	262,	249,	236,
-	224,	213,	204,	196,	190,	186,	183,	182,
-	182,	183,	186,	189,	192,	196,	200,	203,
-	206,	208,	209,	209,	209,	207,	204,	201,
-	197,	193,	188,	183,	179,	174,	170,	166,
-	163,	161,	160,	159,	159,	160,	161,	162,
-	164,	166,	168,	169,	171,	171,	171,	170,
-	169,	167,	163,	159,	155,	150,	144,	139,
-	133,	128,	122,	117,	113,	110,	107,	105,
-	103,	103,	103,	103,	104,	104,	105,	105,
-	105,	103,	101,	97,	92,	86,	78,	68,
-	58,	45,	32,	18,	3,	-11,	-26,	-41,
-	-55,	-68,	-79,	-88,	-95,	-100,	-102,	-102,
-	-99,	-93,	-85,	-75,	-62,	-48,	-33,	-16,
-	0,	16,	33,	48,	62,	75,	85,	93,
-	99,	102,	102,	100,	95,	88,	79,	68,
-	55,	41,	26,	11,	-3,	-18,	-32,	-45,
-	-58,	-68,	-78,	-86,	-92,	-97,	-101,	-103,
-	-105,	-105,	-105,	-104,	-104,	-103,	-103,	-103,
-	-103,	-105,	-107,	-110,	-113,	-117,	-122,	-128,
-	-133,	-139,	-144,	-150,	-155,	-159,	-163,	-167,
-	-169,	-170,	-171,	-171,	-171,	-169,	-168,	-166,
-	-164,	-162,	-161,	-160,	-159,	-159,	-160,	-161,
-	-163,	-166,	-170,	-174,	-179,	-183,	-188,	-193,
-	-197,	-201,	-204,	-207,	-209,	-209,	-209,	-208,
-	-206,	-203,	-200,	-196,	-192,	-189,	-186,	-183,
-	-182,	-182,	-183,	-186,	-190,	-196,	-204,	-213,
-	-224,	-236,	-249,	-262,	-275,	-288,	-299,	-310,
-	-318,	-324,	-327,	-327,	-323,	-316,	-304,	-288,
-	-269,	-245,	-218,	-187,	-153,	-117,	-79,	-40,
-};
-
-#define BEEP_SPEED	5	/* 22050 Hz sample rate */
-#define BEEP_BUFLEN	512
-#define BEEP_VOLUME	15	/* 0 - 100 */
-
-static int beep_volume = BEEP_VOLUME;
-static int beep_playing = 0;
-static int beep_state = 0;
-static short *beep_buf;
-static void (*orig_mksound)(unsigned int, unsigned int);
-
-/* This is found someplace else......I guess in the keyboard driver
- * we don't include.
- */
-static void (*kd_mksound)(unsigned int, unsigned int);
-
-static int catchRadius = 0;
-static int numBufs = 4, bufSize = 32;
-static int numReadBufs = 4, readbufSize = 32;
-
-
-/* TDM/Serial transmit and receive buffer descriptors.
-*/
-static volatile cbd_t	*rx_base, *rx_cur, *tx_base, *tx_cur;
-
-module_param(catchRadius, int, 0);
-module_param(numBufs, int, 0);
-module_param(bufSize, int, 0);
-module_param(numreadBufs, int, 0);
-module_param(readbufSize, int, 0);
-
-#define arraysize(x)	(sizeof(x)/sizeof(*(x)))
-#define le2be16(x)	(((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
-#define le2be16dbl(x)	(((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
-
-#define IOCTL_IN(arg, ret) \
-	do { int error = get_user(ret, (int *)(arg)); \
-		if (error) return error; \
-	} while (0)
-#define IOCTL_OUT(arg, ret)	ioctl_return((int *)(arg), ret)
-
-/* CS4218 serial port control in mode 4.
-*/
-#define CS_INTMASK	((uint)0x40000000)
-#define CS_DO1		((uint)0x20000000)
-#define CS_LATTEN	((uint)0x1f000000)
-#define CS_RATTEN	((uint)0x00f80000)
-#define CS_MUTE		((uint)0x00040000)
-#define CS_ISL		((uint)0x00020000)
-#define CS_ISR		((uint)0x00010000)
-#define CS_LGAIN	((uint)0x0000f000)
-#define CS_RGAIN	((uint)0x00000f00)
-
-#define CS_LATTEN_SET(X)	(((X) & 0x1f) << 24)
-#define CS_RATTEN_SET(X)	(((X) & 0x1f) << 19)
-#define CS_LGAIN_SET(X)		(((X) & 0x0f) << 12)
-#define CS_RGAIN_SET(X)		(((X) & 0x0f) << 8)
-
-#define CS_LATTEN_GET(X)	(((X) >> 24) & 0x1f)
-#define CS_RATTEN_GET(X)	(((X) >> 19) & 0x1f)
-#define CS_LGAIN_GET(X)		(((X) >> 12) & 0x0f)
-#define CS_RGAIN_GET(X)		(((X) >> 8) & 0x0f)
-
-/* The control register is effectively write only.  We have to keep a copy
- * of what we write.
- */
-static	uint	cs4218_control;
-
-/* A place to store expanding information.
-*/
-static int	expand_bal;
-static int	expand_data;
-
-/* Since I can't make the microcode patch work for the SPI, I just
- * clock the bits using software.
- */
-static	void	sw_spi_init(void);
-static	void	sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt);
-static	uint	cs4218_ctl_write(uint ctlreg);
-
-/*** Some low level helpers **************************************************/
-
-/* 16 bit mu-law */
-
-static short ulaw2dma16[] = {
-	-32124,	-31100,	-30076,	-29052,	-28028,	-27004,	-25980,	-24956,
-	-23932,	-22908,	-21884,	-20860,	-19836,	-18812,	-17788,	-16764,
-	-15996,	-15484,	-14972,	-14460,	-13948,	-13436,	-12924,	-12412,
-	-11900,	-11388,	-10876,	-10364,	-9852,	-9340,	-8828,	-8316,
-	-7932,	-7676,	-7420,	-7164,	-6908,	-6652,	-6396,	-6140,
-	-5884,	-5628,	-5372,	-5116,	-4860,	-4604,	-4348,	-4092,
-	-3900,	-3772,	-3644,	-3516,	-3388,	-3260,	-3132,	-3004,
-	-2876,	-2748,	-2620,	-2492,	-2364,	-2236,	-2108,	-1980,
-	-1884,	-1820,	-1756,	-1692,	-1628,	-1564,	-1500,	-1436,
-	-1372,	-1308,	-1244,	-1180,	-1116,	-1052,	-988,	-924,
-	-876,	-844,	-812,	-780,	-748,	-716,	-684,	-652,
-	-620,	-588,	-556,	-524,	-492,	-460,	-428,	-396,
-	-372,	-356,	-340,	-324,	-308,	-292,	-276,	-260,
-	-244,	-228,	-212,	-196,	-180,	-164,	-148,	-132,
-	-120,	-112,	-104,	-96,	-88,	-80,	-72,	-64,
-	-56,	-48,	-40,	-32,	-24,	-16,	-8,	0,
-	32124,	31100,	30076,	29052,	28028,	27004,	25980,	24956,
-	23932,	22908,	21884,	20860,	19836,	18812,	17788,	16764,
-	15996,	15484,	14972,	14460,	13948,	13436,	12924,	12412,
-	11900,	11388,	10876,	10364,	9852,	9340,	8828,	8316,
-	7932,	7676,	7420,	7164,	6908,	6652,	6396,	6140,
-	5884,	5628,	5372,	5116,	4860,	4604,	4348,	4092,
-	3900,	3772,	3644,	3516,	3388,	3260,	3132,	3004,
-	2876,	2748,	2620,	2492,	2364,	2236,	2108,	1980,
-	1884,	1820,	1756,	1692,	1628,	1564,	1500,	1436,
-	1372,	1308,	1244,	1180,	1116,	1052,	988,	924,
-	876,	844,	812,	780,	748,	716,	684,	652,
-	620,	588,	556,	524,	492,	460,	428,	396,
-	372,	356,	340,	324,	308,	292,	276,	260,
-	244,	228,	212,	196,	180,	164,	148,	132,
-	120,	112,	104,	96,	88,	80,	72,	64,
-	56,	48,	40,	32,	24,	16,	8,	0,
-};
-
-/* 16 bit A-law */
-
-static short alaw2dma16[] = {
-	-5504,	-5248,	-6016,	-5760,	-4480,	-4224,	-4992,	-4736,
-	-7552,	-7296,	-8064,	-7808,	-6528,	-6272,	-7040,	-6784,
-	-2752,	-2624,	-3008,	-2880,	-2240,	-2112,	-2496,	-2368,
-	-3776,	-3648,	-4032,	-3904,	-3264,	-3136,	-3520,	-3392,
-	-22016,	-20992,	-24064,	-23040,	-17920,	-16896,	-19968,	-18944,
-	-30208,	-29184,	-32256,	-31232,	-26112,	-25088,	-28160,	-27136,
-	-11008,	-10496,	-12032,	-11520,	-8960,	-8448,	-9984,	-9472,
-	-15104,	-14592,	-16128,	-15616,	-13056,	-12544,	-14080,	-13568,
-	-344,	-328,	-376,	-360,	-280,	-264,	-312,	-296,
-	-472,	-456,	-504,	-488,	-408,	-392,	-440,	-424,
-	-88,	-72,	-120,	-104,	-24,	-8,	-56,	-40,
-	-216,	-200,	-248,	-232,	-152,	-136,	-184,	-168,
-	-1376,	-1312,	-1504,	-1440,	-1120,	-1056,	-1248,	-1184,
-	-1888,	-1824,	-2016,	-1952,	-1632,	-1568,	-1760,	-1696,
-	-688,	-656,	-752,	-720,	-560,	-528,	-624,	-592,
-	-944,	-912,	-1008,	-976,	-816,	-784,	-880,	-848,
-	5504,	5248,	6016,	5760,	4480,	4224,	4992,	4736,
-	7552,	7296,	8064,	7808,	6528,	6272,	7040,	6784,
-	2752,	2624,	3008,	2880,	2240,	2112,	2496,	2368,
-	3776,	3648,	4032,	3904,	3264,	3136,	3520,	3392,
-	22016,	20992,	24064,	23040,	17920,	16896,	19968,	18944,
-	30208,	29184,	32256,	31232,	26112,	25088,	28160,	27136,
-	11008,	10496,	12032,	11520,	8960,	8448,	9984,	9472,
-	15104,	14592,	16128,	15616,	13056,	12544,	14080,	13568,
-	344,	328,	376,	360,	280,	264,	312,	296,
-	472,	456,	504,	488,	408,	392,	440,	424,
-	88,	72,	120,	104,	24,	8,	56,	40,
-	216,	200,	248,	232,	152,	136,	184,	168,
-	1376,	1312,	1504,	1440,	1120,	1056,	1248,	1184,
-	1888,	1824,	2016,	1952,	1632,	1568,	1760,	1696,
-	688,	656,	752,	720,	560,	528,	624,	592,
-	944,	912,	1008,	976,	816,	784,	880,	848,
-};
-
-
-/*** Translations ************************************************************/
-
-
-static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft);
-static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft);
-static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft);
-static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft);
-static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft);
-static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft);
-
-
-/*** Low level stuff *********************************************************/
-
-struct cs_sound_settings {
-	MACHINE mach;		/* machine dependent things */
-	SETTINGS hard;		/* hardware settings */
-	SETTINGS soft;		/* software settings */
-	SETTINGS dsp;		/* /dev/dsp default settings */
-	TRANS *trans_write;	/* supported translations for playback */
-	TRANS *trans_read;	/* supported translations for record */
-	int volume_left;	/* volume (range is machine dependent) */
-	int volume_right;
-	int bass;		/* tone (range is machine dependent) */
-	int treble;
-	int gain;
-	int minDev;		/* minor device number currently open */
-};
-
-static struct cs_sound_settings sound;
-
-static void *CS_Alloc(unsigned int size, gfp_t flags);
-static void CS_Free(void *ptr, unsigned int size);
-static int CS_IrqInit(void);
-#ifdef MODULE
-static void CS_IrqCleanup(void);
-#endif /* MODULE */
-static void CS_Silence(void);
-static void CS_Init(void);
-static void CS_Play(void);
-static void CS_Record(void);
-static int CS_SetFormat(int format);
-static int CS_SetVolume(int volume);
-static void cs4218_tdm_tx_intr(void *devid);
-static void cs4218_tdm_rx_intr(void *devid);
-static void cs4218_intr(void *devid);
-static int cs_get_volume(uint reg);
-static int cs_volume_setter(int volume, int mute);
-static int cs_get_gain(uint reg);
-static int cs_set_gain(int gain);
-static void cs_mksound(unsigned int hz, unsigned int ticks);
-static void cs_nosound(unsigned long xx);
-
-/*** Mid level stuff *********************************************************/
-
-
-static void sound_silence(void);
-static void sound_init(void);
-static int sound_set_format(int format);
-static int sound_set_speed(int speed);
-static int sound_set_stereo(int stereo);
-static int sound_set_volume(int volume);
-
-static ssize_t sound_copy_translate(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft);
-static ssize_t sound_copy_translate_read(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft);
-
-
-/*
- * /dev/mixer abstraction
- */
-
-struct sound_mixer {
-    int busy;
-    int modify_counter;
-};
-
-static struct sound_mixer mixer;
-
-static struct sound_queue sq;
-static struct sound_queue read_sq;
-
-#define sq_block_address(i)	(sq.buffers[i])
-#define SIGNAL_RECEIVED	(signal_pending(current))
-#define NON_BLOCKING(open_mode)	(open_mode & O_NONBLOCK)
-#define ONE_SECOND	HZ	/* in jiffies (100ths of a second) */
-#define NO_TIME_LIMIT	0xffffffff
-
-/*
- * /dev/sndstat
- */
-
-struct sound_state {
-	int busy;
-	char buf[512];
-	int len, ptr;
-};
-
-static struct sound_state state;
-
-/*** Common stuff ********************************************************/
-
-static long long sound_lseek(struct file *file, long long offset, int orig);
-
-/*** Config & Setup **********************************************************/
-
-void dmasound_setup(char *str, int *ints);
-
-/*** Translations ************************************************************/
-
-
-/* ++TeSche: radically changed for new expanding purposes...
- *
- * These two routines now deal with copying/expanding/translating the samples
- * from user space into our buffer at the right frequency. They take care about
- * how much data there's actually to read, how much buffer space there is and
- * to convert samples into the right frequency/encoding. They will only work on
- * complete samples so it may happen they leave some bytes in the input stream
- * if the user didn't write a multiple of the current sample size. They both
- * return the number of bytes they've used from both streams so you may detect
- * such a situation. Luckily all programs should be able to cope with that.
- *
- * I think I've optimized anything as far as one can do in plain C, all
- * variables should fit in registers and the loops are really short. There's
- * one loop for every possible situation. Writing a more generalized and thus
- * parameterized loop would only produce slower code. Feel free to optimize
- * this in assembler if you like. :)
- *
- * I think these routines belong here because they're not yet really hardware
- * independent, especially the fact that the Falcon can play 16bit samples
- * only in stereo is hardcoded in both of them!
- *
- * ++geert: split in even more functions (one per format)
- */
-
-static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	short *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16;
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-		if (get_user(data, userPtr++))
-			return -EFAULT;
-		val = table[data];
-		*p++ = val;
-		if (stereo) {
-			if (get_user(data, userPtr++))
-				return -EFAULT;
-			val = table[data];
-		}
-		*p++ = val;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-		if (get_user(data, userPtr++))
-			return -EFAULT;
-		val = data << 8;
-		*p++ = val;
-		if (stereo) {
-			if (get_user(data, userPtr++))
-				return -EFAULT;
-			val = data << 8;
-		}
-		*p++ = val;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-		if (get_user(data, userPtr++))
-			return -EFAULT;
-		val = (data ^ 0x80) << 8;
-		*p++ = val;
-		if (stereo) {
-			if (get_user(data, userPtr++))
-				return -EFAULT;
-			val = (data ^ 0x80) << 8;
-		}
-		*p++ = val;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-/* This is the default format of the codec.  Signed, 16-bit stereo
- * generated by an application shouldn't have to be copied at all.
- * We should just get the phsical address of the buffers and update
- * the TDM BDs directly.
- */
-static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	if (!stereo) {
-		short *up = (short *) userPtr;
-		while (count > 0) {
-			short data;
-			if (get_user(data, up++))
-				return -EFAULT;
-			*fp++ = data;
-			*fp++ = data;
-			count--;
-		}
-	} else {
-		if (copy_from_user(fp, userPtr, count * 4))
-			return -EFAULT;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-	short *up = (short *) userPtr;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		int data;
-		if (get_user(data, up++))
-			return -EFAULT;
-		data ^= mask;
-		*fp++ = data;
-		if (stereo) {
-			if (get_user(data, up++))
-				return -EFAULT;
-			data ^= mask;
-		}
-		*fp++ = data;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-
-static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft)
-{
-	unsigned short *table = (unsigned short *)
-		(sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16);
-	unsigned int data = expand_data;
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int utotal, ftotal;
-	int stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		u_char c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(c, userPtr++))
-				return -EFAULT;
-			data = table[c];
-			if (stereo) {
-				if (get_user(c, userPtr++))
-					return -EFAULT;
-				data = (data << 16) + table[c];
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		u_char c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(c, userPtr++))
-				return -EFAULT;
-			data = c << 8;
-			if (stereo) {
-				if (get_user(c, userPtr++))
-					return -EFAULT;
-				data = (data << 16) + (c << 8);
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		u_char c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(c, userPtr++))
-				return -EFAULT;
-			data = (c ^ 0x80) << 8;
-			if (stereo) {
-				if (get_user(c, userPtr++))
-					return -EFAULT;
-				data = (data << 16) + ((c ^ 0x80) << 8);
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft)
-{
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	unsigned short *up = (unsigned short *) userPtr;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		unsigned short c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(data, up++))
-				return -EFAULT;
-			if (stereo) {
-				if (get_user(c, up++))
-					return -EFAULT;
-				data = (data << 16) + c;
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 4: utotal * 2;
-}
-
-
-static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
-			    u_char frame[], ssize_t *frameUsed,
-			    ssize_t frameLeft)
-{
-	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
-	unsigned int *p = (unsigned int *) &frame[*frameUsed];
-	unsigned int data = expand_data;
-	unsigned short *up = (unsigned short *) userPtr;
-	int bal = expand_bal;
-	int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
-	int stereo = sound.soft.stereo;
-	int utotal, ftotal;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	ftotal = frameLeft;
-	utotal = userCount;
-	while (frameLeft) {
-		unsigned short c;
-		if (bal < 0) {
-			if (userCount == 0)
-				break;
-			if (get_user(data, up++))
-				return -EFAULT;
-			data ^= mask;
-			if (stereo) {
-				if (get_user(c, up++))
-					return -EFAULT;
-				data = (data << 16) + (c ^ mask);
-			} else
-				data = (data << 16) + data;
-			userCount--;
-			bal += hSpeed;
-		}
-		*p++ = data;
-		frameLeft--;
-		bal -= sSpeed;
-	}
-	expand_bal = bal;
-	expand_data = data;
-	*frameUsed += (ftotal - frameLeft) * 4;
-	utotal -= userCount;
-	return stereo? utotal * 4: utotal * 2;
-}
-
-static ssize_t cs4218_ct_s8_read(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-
-		val = *p++;
-		data = val >> 8;
-		if (put_user(data, (u_char *)userPtr++))
-			return -EFAULT;
-		if (stereo) {
-			val = *p;
-			data = val >> 8;
-			if (put_user(data, (u_char *)userPtr++))
-				return -EFAULT;
-		}
-		p++;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_u8_read(const u_char *userPtr, size_t userCount,
-			  u_char frame[], ssize_t *frameUsed,
-			  ssize_t frameLeft)
-{
-	ssize_t count, used;
-	short *p = (short *) &frame[*frameUsed];
-	int val, stereo = sound.soft.stereo;
-
-	frameLeft >>= 2;
-	if (stereo)
-		userCount >>= 1;
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		u_char data;
-
-		val = *p++;
-		data = (val >> 8) ^ 0x80;
-		if (put_user(data, (u_char *)userPtr++))
-			return -EFAULT;
-		if (stereo) {
-			val = *p;
-			data = (val >> 8) ^ 0x80;
-			if (put_user(data, (u_char *)userPtr++))
-				return -EFAULT;
-		}
-		p++;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	if (!stereo) {
-		short *up = (short *) userPtr;
-		while (count > 0) {
-			short data;
-			data = *fp;
-			if (put_user(data, up++))
-				return -EFAULT;
-			fp+=2;
-			count--;
-		}
-	} else {
-		if (copy_to_user((u_char *)userPtr, fp, count * 4))
-			return -EFAULT;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
-			   u_char frame[], ssize_t *frameUsed,
-			   ssize_t frameLeft)
-{
-	ssize_t count, used;
-	int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
-	int stereo = sound.soft.stereo;
-	short *fp = (short *) &frame[*frameUsed];
-	short *up = (short *) userPtr;
-
-	frameLeft >>= 2;
-	userCount >>= (stereo? 2: 1);
-	used = count = min(userCount, frameLeft);
-	while (count > 0) {
-		int data;
-
-		data = *fp++;
-		data ^= mask;
-		if (put_user(data, up++))
-			return -EFAULT;
-		if (stereo) {
-			data = *fp;
-			data ^= mask;
-			if (put_user(data, up++))
-				return -EFAULT;
-		}
-		fp++;
-		count--;
-	}
-	*frameUsed += used * 4;
-	return stereo? used * 4: used * 2;
-}
-
-static TRANS transCSNormal = {
-	cs4218_ct_law, cs4218_ct_law, cs4218_ct_s8, cs4218_ct_u8,
-	cs4218_ct_s16, cs4218_ct_u16, cs4218_ct_s16, cs4218_ct_u16
-};
-
-static TRANS transCSExpand = {
-	cs4218_ctx_law, cs4218_ctx_law, cs4218_ctx_s8, cs4218_ctx_u8,
-	cs4218_ctx_s16, cs4218_ctx_u16, cs4218_ctx_s16, cs4218_ctx_u16
-};
-
-static TRANS transCSNormalRead = {
-	NULL, NULL, cs4218_ct_s8_read, cs4218_ct_u8_read,
-	cs4218_ct_s16_read, cs4218_ct_u16_read,
-	cs4218_ct_s16_read, cs4218_ct_u16_read
-};
-
-/*** Low level stuff *********************************************************/
-
-static void *CS_Alloc(unsigned int size, gfp_t flags)
-{
-	int	order;
-
-	size >>= 13;
-	for (order=0; order < 5; order++) {
-		if (size == 0)
-			break;
-		size >>= 1;
-	}
-	return (void *)__get_free_pages(flags, order);
-}
-
-static void CS_Free(void *ptr, unsigned int size)
-{
-	int	order;
-
-	size >>= 13;
-	for (order=0; order < 5; order++) {
-		if (size == 0)
-			break;
-		size >>= 1;
-	}
-	free_pages((ulong)ptr, order);
-}
-
-static int __init CS_IrqInit(void)
-{
-	cpm_install_handler(CPMVEC_SMC2, cs4218_intr, NULL);
-	return 1;
-}
-
-#ifdef MODULE
-static void CS_IrqCleanup(void)
-{
-	volatile smc_t		*sp;
-	volatile cpm8xx_t	*cp;
-
-	/* First disable transmitter and receiver.
-	*/
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-
-	/* And now shut down the SMC.
-	*/
-	cp = cpmp;	/* Get pointer to Communication Processor */
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-				CPM_CR_STOP_TX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-
-	/* Release the interrupt handler.
-	*/
-	cpm_free_handler(CPMVEC_SMC2);
-
-	kfree(beep_buf);
-	kd_mksound = orig_mksound;
-}
-#endif /* MODULE */
-
-static void CS_Silence(void)
-{
-	volatile smc_t		*sp;
-
-	/* Disable transmitter.
-	*/
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~SMCMR_TEN;
-}
-
-/* Frequencies depend upon external oscillator.  There are two
- * choices, 12.288 and 11.2896 MHz.  The RPCG audio supports both through
- * and external control register selection bit.
- */
-static int cs4218_freqs[] = {
-    /* 12.288  11.2896  */
-	48000, 44100,
-	32000, 29400,
-	24000, 22050,
-	19200, 17640,
-	16000, 14700,
-	12000, 11025,
-	 9600,  8820,
-	 8000,  7350
-};
-
-static void CS_Init(void)
-{
-	int i, tolerance;
-
-	switch (sound.soft.format) {
-	case AFMT_S16_LE:
-	case AFMT_U16_LE:
-		sound.hard.format = AFMT_S16_LE;
-		break;
-	default:
-		sound.hard.format = AFMT_S16_BE;
-		break;
-	}
-	sound.hard.stereo = 1;
-	sound.hard.size = 16;
-
-	/*
-	 * If we have a sample rate which is within catchRadius percent
-	 * of the requested value, we don't have to expand the samples.
-	 * Otherwise choose the next higher rate.
-	 */
-	i = (sizeof(cs4218_freqs) / sizeof(int));
-	do {
-		tolerance = catchRadius * cs4218_freqs[--i] / 100;
-	} while (sound.soft.speed > cs4218_freqs[i] + tolerance && i > 0);
-	if (sound.soft.speed >= cs4218_freqs[i] - tolerance)
-		sound.trans_write = &transCSNormal;
-	else
-		sound.trans_write = &transCSExpand;
-	sound.trans_read = &transCSNormalRead;
-	sound.hard.speed = cs4218_freqs[i];
-	cs4218_rate_index = i;
-
-	/* The CS4218 has seven selectable clock dividers for the sample
-	 * clock.  The HIOX then provides one of two external rates.
-	 * An even numbered frequency table index uses the high external
-	 * clock rate.
-	 */
-	*(uint *)HIOX_CSR4_ADDR &= ~(HIOX_CSR4_AUDCLKHI | HIOX_CSR4_AUDCLKSEL);
-	if ((i & 1) == 0)
-		*(uint *)HIOX_CSR4_ADDR |= HIOX_CSR4_AUDCLKHI;
-	i >>= 1;
-	*(uint *)HIOX_CSR4_ADDR |= (i & HIOX_CSR4_AUDCLKSEL);
-
-	expand_bal = -sound.soft.speed;
-}
-
-static int CS_SetFormat(int format)
-{
-	int size;
-
-	switch (format) {
-	case AFMT_QUERY:
-		return sound.soft.format;
-	case AFMT_MU_LAW:
-	case AFMT_A_LAW:
-	case AFMT_U8:
-	case AFMT_S8:
-		size = 8;
-		break;
-	case AFMT_S16_BE:
-	case AFMT_U16_BE:
-	case AFMT_S16_LE:
-	case AFMT_U16_LE:
-		size = 16;
-		break;
-	default: /* :-) */
-		printk(KERN_ERR "dmasound: unknown format 0x%x, using AFMT_U8\n",
-		       format);
-		size = 8;
-		format = AFMT_U8;
-	}
-
-	sound.soft.format = format;
-	sound.soft.size = size;
-	if (sound.minDev == SND_DEV_DSP) {
-		sound.dsp.format = format;
-		sound.dsp.size = size;
-	}
-
-	CS_Init();
-
-	return format;
-}
-
-/* Volume is the amount of attenuation we tell the codec to impose
- * on the outputs.  There are 32 levels, with 0 the "loudest".
- */
-#define CS_VOLUME_TO_MASK(x)	(31 - ((((x) - 1) * 31) / 99))
-#define CS_MASK_TO_VOLUME(y)	(100 - ((y) * 99 / 31))
-
-static int cs_get_volume(uint reg)
-{
-	int volume;
-
-	volume = CS_MASK_TO_VOLUME(CS_LATTEN_GET(reg));
-	volume |= CS_MASK_TO_VOLUME(CS_RATTEN_GET(reg)) << 8;
-	return volume;
-}
-
-static int cs_volume_setter(int volume, int mute)
-{
-	uint tempctl;
-
-	if (mute && volume == 0) {
-		tempctl = cs4218_control | CS_MUTE;
-	} else {
-		tempctl = cs4218_control & ~CS_MUTE;
-		tempctl = tempctl & ~(CS_LATTEN | CS_RATTEN);
-		tempctl |= CS_LATTEN_SET(CS_VOLUME_TO_MASK(volume & 0xff));
-		tempctl |= CS_RATTEN_SET(CS_VOLUME_TO_MASK((volume >> 8) & 0xff));
-		volume = cs_get_volume(tempctl);
-	}
-	if (tempctl != cs4218_control) {
-		cs4218_ctl_write(tempctl);
-	}
-	return volume;
-}
-
-
-/* Gain has 16 steps from 0 to 15.  These are in 1.5dB increments from
- * 0 (no gain) to 22.5 dB.
- */
-#define CS_RECLEVEL_TO_GAIN(v) \
-	((v) < 0 ? 0 : (v) > 100 ? 15 : (v) * 3 / 20)
-#define CS_GAIN_TO_RECLEVEL(v) (((v) * 20 + 2) / 3)
-
-static int cs_get_gain(uint reg)
-{
-	int gain;
-
-	gain = CS_GAIN_TO_RECLEVEL(CS_LGAIN_GET(reg));
-	gain |= CS_GAIN_TO_RECLEVEL(CS_RGAIN_GET(reg)) << 8;
-	return gain;
-}
-
-static int cs_set_gain(int gain)
-{
-	uint tempctl;
-
-	tempctl = cs4218_control & ~(CS_LGAIN | CS_RGAIN);
-	tempctl |= CS_LGAIN_SET(CS_RECLEVEL_TO_GAIN(gain & 0xff));
-	tempctl |= CS_RGAIN_SET(CS_RECLEVEL_TO_GAIN((gain >> 8) & 0xff));
-	gain = cs_get_gain(tempctl);
-
-	if (tempctl != cs4218_control) {
-		cs4218_ctl_write(tempctl);
-	}
-	return gain;
-}
-
-static int CS_SetVolume(int volume)
-{
-	return cs_volume_setter(volume, CS_MUTE);
-}
-
-static void CS_Play(void)
-{
-	int i, count;
-	unsigned long flags;
-	volatile cbd_t	*bdp;
-	volatile cpm8xx_t *cp;
-
-	/* Protect buffer */
-	spin_lock_irqsave(&cs4218_lock, flags);
-#if 0
-	if (awacs_beep_state) {
-		/* sound takes precedence over beeps */
-		out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
-		out_le32(&awacs->control,
-			 (in_le32(&awacs->control) & ~0x1f00)
-			 | (awacs_rate_index << 8));
-		out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE);
-		out_le32(&awacs_txdma->cmdptr, virt_to_bus(&(awacs_tx_cmds[(sq.front+sq.active) % sq.max_count])));
-
-		beep_playing = 0;
-		awacs_beep_state = 0;
-	}
-#endif
-	i = sq.front + sq.active;
-	if (i >= sq.max_count)
-		i -= sq.max_count;
-	while (sq.active < 2 && sq.active < sq.count) {
-		count = (sq.count == sq.active + 1)?sq.rear_size:sq.block_size;
-		if (count < sq.block_size && !sq.syncing)
-			/* last block not yet filled, and we're not syncing. */
-			break;
-
-		bdp = &tx_base[i];
-		bdp->cbd_datlen = count;
-
-		flush_dcache_range((ulong)sound_buffers[i],
-					(ulong)(sound_buffers[i] + count));
-
-		if (++i >= sq.max_count)
-			i = 0;
-
-		if (sq.active == 0) {
-			/* The SMC does not load its fifo until the first
-			 * TDM frame pulse, so the transmit data gets shifted
-			 * by one word.  To compensate for this, we incorrectly
-			 * transmit the first buffer and shorten it by one
-			 * word.  Subsequent buffers are then aligned properly.
-			 */
-			bdp->cbd_datlen -= 2;
-
-			/* Start up the SMC Transmitter.
-			*/
-			cp = cpmp;
-			cp->cp_smc[1].smc_smcmr |= SMCMR_TEN;
-			cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-					CPM_CR_RESTART_TX) | CPM_CR_FLG;
-			while (cp->cp_cpcr & CPM_CR_FLG);
-		}
-
-		/* Buffer is ready now.
-		*/
-		bdp->cbd_sc |= BD_SC_READY;
-
-		++sq.active;
-	}
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-
-static void CS_Record(void)
-{
-	unsigned long flags;
-	volatile smc_t		*sp;
-
-	if (read_sq.active)
-		return;
-
-	/* Protect buffer */
-	spin_lock_irqsave(&cs4218_lock, flags);
-
-	/* This is all we have to do......Just start it up.
-	*/
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr |= SMCMR_REN;
-
-	read_sq.active = 1;
-
-        spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-
-static void
-cs4218_tdm_tx_intr(void *devid)
-{
-	int i = sq.front;
-	volatile cbd_t *bdp;
-
-	while (sq.active > 0) {
-		bdp = &tx_base[i];
-		if (bdp->cbd_sc & BD_SC_READY)
-			break;	/* this frame is still going */
-		--sq.count;
-		--sq.active;
-		if (++i >= sq.max_count)
-			i = 0;
-	}
-	if (i != sq.front)
-		WAKE_UP(sq.action_queue);
-	sq.front = i;
-
-	CS_Play();
-
-	if (!sq.active)
-		WAKE_UP(sq.sync_queue);
-}
-
-
-static void
-cs4218_tdm_rx_intr(void *devid)
-{
-
-	/* We want to blow 'em off when shutting down.
-	*/
-	if (read_sq.active == 0)
-		return;
-
-	/* Check multiple buffers in case we were held off from
-	 * interrupt processing for a long time.  Geeze, I really hope
-	 * this doesn't happen.
-	 */
-	while ((rx_base[read_sq.rear].cbd_sc & BD_SC_EMPTY) == 0) {
-
-		/* Invalidate the data cache range for this buffer.
-		*/
-		invalidate_dcache_range(
-		    (uint)(sound_read_buffers[read_sq.rear]),
-		    (uint)(sound_read_buffers[read_sq.rear] + read_sq.block_size));
-
-		/* Make buffer available again and move on.
-		*/
-		rx_base[read_sq.rear].cbd_sc |= BD_SC_EMPTY;
-		read_sq.rear++;
-
-		/* Wrap the buffer ring.
-		*/
-		if (read_sq.rear >= read_sq.max_active)
-			read_sq.rear = 0;
-
-		/* If we have caught up to the front buffer, bump it.
-		 * This will cause weird (but not fatal) results if the
-		 * read loop is currently using this buffer.  The user is
-		 * behind in this case anyway, so weird things are going
-		 * to happen.
-		 */
-		if (read_sq.rear == read_sq.front) {
-			read_sq.front++;
-			if (read_sq.front >= read_sq.max_active)
-				read_sq.front = 0;
-		}
-	}
-
-	WAKE_UP(read_sq.action_queue);
-}
-
-static void cs_nosound(unsigned long xx)
-{
-	unsigned long flags;
-
-	/* not sure if this is needed, since hardware command is #if 0'd */
-	spin_lock_irqsave(&cs4218_lock, flags);
-	if (beep_playing) {
-#if 0
-		st_le16(&beep_dbdma_cmd->command, DBDMA_STOP);
-#endif
-		beep_playing = 0;
-	}
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-static DEFINE_TIMER(beep_timer, cs_nosound, 0, 0);
-
-static void cs_mksound(unsigned int hz, unsigned int ticks)
-{
-	unsigned long flags;
-	int beep_speed = BEEP_SPEED;
-	int srate = cs4218_freqs[beep_speed];
-	int period, ncycles, nsamples;
-	int i, j, f;
-	short *p;
-	static int beep_hz_cache;
-	static int beep_nsamples_cache;
-	static int beep_volume_cache;
-
-	if (hz <= srate / BEEP_BUFLEN || hz > srate / 2) {
-#if 1
-		/* this is a hack for broken X server code */
-		hz = 750;
-		ticks = 12;
-#else
-		/* cancel beep currently playing */
-		awacs_nosound(0);
-		return;
-#endif
-	}
-	/* lock while modifying beep_timer */
-	spin_lock_irqsave(&cs4218_lock, flags);
-	del_timer(&beep_timer);
-	if (ticks) {
-		beep_timer.expires = jiffies + ticks;
-		add_timer(&beep_timer);
-	}
-	if (beep_playing || sq.active || beep_buf == NULL) {
-		spin_unlock_irqrestore(&cs4218_lock, flags);
-		return;		/* too hard, sorry :-( */
-	}
-	beep_playing = 1;
-#if 0
-	st_le16(&beep_dbdma_cmd->command, OUTPUT_MORE + BR_ALWAYS);
-#endif
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-
-	if (hz == beep_hz_cache && beep_volume == beep_volume_cache) {
-		nsamples = beep_nsamples_cache;
-	} else {
-		period = srate * 256 / hz;	/* fixed point */
-		ncycles = BEEP_BUFLEN * 256 / period;
-		nsamples = (period * ncycles) >> 8;
-		f = ncycles * 65536 / nsamples;
-		j = 0;
-		p = beep_buf;
-		for (i = 0; i < nsamples; ++i, p += 2) {
-			p[0] = p[1] = beep_wform[j >> 8] * beep_volume;
-			j = (j + f) & 0xffff;
-		}
-		beep_hz_cache = hz;
-		beep_volume_cache = beep_volume;
-		beep_nsamples_cache = nsamples;
-	}
-
-#if 0
-	st_le16(&beep_dbdma_cmd->req_count, nsamples*4);
-	st_le16(&beep_dbdma_cmd->xfer_status, 0);
-	st_le32(&beep_dbdma_cmd->cmd_dep, virt_to_bus(beep_dbdma_cmd));
-	st_le32(&beep_dbdma_cmd->phy_addr, virt_to_bus(beep_buf));
-	awacs_beep_state = 1;
-
-	spin_lock_irqsave(&cs4218_lock, flags);
-	if (beep_playing) {	/* i.e. haven't been terminated already */
-		out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
-		out_le32(&awacs->control,
-			 (in_le32(&awacs->control) & ~0x1f00)
-			 | (beep_speed << 8));
-		out_le32(&awacs->byteswap, 0);
-		out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd));
-		out_le32(&awacs_txdma->control, RUN | (RUN << 16));
-	}
-	spin_unlock_irqrestore(&cs4218_lock, flags);
-#endif
-}
-
-static MACHINE mach_cs4218 = {
-	.owner =	THIS_MODULE,
-	.name =		"HIOX CS4218",
-	.name2 =	"Built-in Sound",
-	.dma_alloc =	CS_Alloc,
-	.dma_free =	CS_Free,
-	.irqinit =	CS_IrqInit,
-#ifdef MODULE
-	.irqcleanup =	CS_IrqCleanup,
-#endif /* MODULE */
-	.init =		CS_Init,
-	.silence =	CS_Silence,
-	.setFormat =	CS_SetFormat,
-	.setVolume =	CS_SetVolume,
-	.play =		CS_Play
-};
-
-
-/*** Mid level stuff *********************************************************/
-
-
-static void sound_silence(void)
-{
-	/* update hardware settings one more */
-	(*sound.mach.init)();
-
-	(*sound.mach.silence)();
-}
-
-
-static void sound_init(void)
-{
-	(*sound.mach.init)();
-}
-
-
-static int sound_set_format(int format)
-{
-	return(*sound.mach.setFormat)(format);
-}
-
-
-static int sound_set_speed(int speed)
-{
-	if (speed < 0)
-		return(sound.soft.speed);
-
-	sound.soft.speed = speed;
-	(*sound.mach.init)();
-	if (sound.minDev == SND_DEV_DSP)
-		sound.dsp.speed = sound.soft.speed;
-
-	return(sound.soft.speed);
-}
-
-
-static int sound_set_stereo(int stereo)
-{
-	if (stereo < 0)
-		return(sound.soft.stereo);
-
-	stereo = !!stereo;    /* should be 0 or 1 now */
-
-	sound.soft.stereo = stereo;
-	if (sound.minDev == SND_DEV_DSP)
-		sound.dsp.stereo = stereo;
-	(*sound.mach.init)();
-
-	return(stereo);
-}
-
-
-static int sound_set_volume(int volume)
-{
-	return(*sound.mach.setVolume)(volume);
-}
-
-static ssize_t sound_copy_translate(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft)
-{
-	ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
-
-	switch (sound.soft.format) {
-	case AFMT_MU_LAW:
-		ct_func = sound.trans_write->ct_ulaw;
-		break;
-	case AFMT_A_LAW:
-		ct_func = sound.trans_write->ct_alaw;
-		break;
-	case AFMT_S8:
-		ct_func = sound.trans_write->ct_s8;
-		break;
-	case AFMT_U8:
-		ct_func = sound.trans_write->ct_u8;
-		break;
-	case AFMT_S16_BE:
-		ct_func = sound.trans_write->ct_s16be;
-		break;
-	case AFMT_U16_BE:
-		ct_func = sound.trans_write->ct_u16be;
-		break;
-	case AFMT_S16_LE:
-		ct_func = sound.trans_write->ct_s16le;
-		break;
-	case AFMT_U16_LE:
-		ct_func = sound.trans_write->ct_u16le;
-		break;
-	}
-	if (ct_func)
-		return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
-	else
-		return 0;
-}
-
-static ssize_t sound_copy_translate_read(const u_char *userPtr,
-				    size_t userCount,
-				    u_char frame[], ssize_t *frameUsed,
-				    ssize_t frameLeft)
-{
-	ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
-
-	switch (sound.soft.format) {
-	case AFMT_MU_LAW:
-		ct_func = sound.trans_read->ct_ulaw;
-		break;
-	case AFMT_A_LAW:
-		ct_func = sound.trans_read->ct_alaw;
-		break;
-	case AFMT_S8:
-		ct_func = sound.trans_read->ct_s8;
-		break;
-	case AFMT_U8:
-		ct_func = sound.trans_read->ct_u8;
-		break;
-	case AFMT_S16_BE:
-		ct_func = sound.trans_read->ct_s16be;
-		break;
-	case AFMT_U16_BE:
-		ct_func = sound.trans_read->ct_u16be;
-		break;
-	case AFMT_S16_LE:
-		ct_func = sound.trans_read->ct_s16le;
-		break;
-	case AFMT_U16_LE:
-		ct_func = sound.trans_read->ct_u16le;
-		break;
-	}
-	if (ct_func)
-		return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
-	else
-		return 0;
-}
-
-
-/*
- * /dev/mixer abstraction
- */
-
-static int mixer_open(struct inode *inode, struct file *file)
-{
-	mixer.busy = 1;
-	return nonseekable_open(inode, file);
-}
-
-
-static int mixer_release(struct inode *inode, struct file *file)
-{
-	mixer.busy = 0;
-	return 0;
-}
-
-
-static int mixer_ioctl(struct inode *inode, struct file *file, u_int cmd,
-		       u_long arg)
-{
-	int data;
-	uint tmpcs;
-
-	if (_SIOC_DIR(cmd) & _SIOC_WRITE)
-	    mixer.modify_counter++;
-	if (cmd == OSS_GETVERSION)
-	    return IOCTL_OUT(arg, SOUND_VERSION);
-	switch (cmd) {
-		case SOUND_MIXER_INFO: {
-		    mixer_info info;
-		    strlcpy(info.id, "CS4218_TDM", sizeof(info.id));
-		    strlcpy(info.name, "CS4218_TDM", sizeof(info.name));
-		    info.name[sizeof(info.name)-1] = 0;
-		    info.modify_counter = mixer.modify_counter;
-		    if (copy_to_user((int *)arg, &info, sizeof(info)))
-		    		return -EFAULT;
-		    return 0;
-		}
-		case SOUND_MIXER_READ_DEVMASK:
-			data = SOUND_MASK_VOLUME | SOUND_MASK_LINE
-				| SOUND_MASK_MIC | SOUND_MASK_RECLEV
-				| SOUND_MASK_ALTPCM;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_RECMASK:
-			data = SOUND_MASK_LINE | SOUND_MASK_MIC;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_RECSRC:
-			if (cs4218_control & CS_DO1)
-				data = SOUND_MASK_LINE;
-			else
-				data = SOUND_MASK_MIC;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_WRITE_RECSRC:
-			IOCTL_IN(arg, data);
-			data &= (SOUND_MASK_LINE | SOUND_MASK_MIC);
-			if (data & SOUND_MASK_LINE)
-				tmpcs = cs4218_control |
-						(CS_ISL | CS_ISR | CS_DO1);
-			if (data & SOUND_MASK_MIC)
-				tmpcs = cs4218_control &
-						~(CS_ISL | CS_ISR | CS_DO1);
-			if (tmpcs != cs4218_control)
-				cs4218_ctl_write(tmpcs);
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_STEREODEVS:
-			data = SOUND_MASK_VOLUME | SOUND_MASK_RECLEV;
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_CAPS:
-			return IOCTL_OUT(arg, 0);
-		case SOUND_MIXER_READ_VOLUME:
-			data = (cs4218_control & CS_MUTE)? 0:
-				cs_get_volume(cs4218_control);
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_WRITE_VOLUME:
-			IOCTL_IN(arg, data);
-			return IOCTL_OUT(arg, sound_set_volume(data));
-		case SOUND_MIXER_WRITE_ALTPCM:	/* really bell volume */
-			IOCTL_IN(arg, data);
-			beep_volume = data & 0xff;
-			/* fall through */
-		case SOUND_MIXER_READ_ALTPCM:
-			return IOCTL_OUT(arg, beep_volume);
-		case SOUND_MIXER_WRITE_RECLEV:
-			IOCTL_IN(arg, data);
-			data = cs_set_gain(data);
-			return IOCTL_OUT(arg, data);
-		case SOUND_MIXER_READ_RECLEV:
-			data = cs_get_gain(cs4218_control);
-			return IOCTL_OUT(arg, data);
-	}
-
-	return -EINVAL;
-}
-
-
-static const struct file_operations mixer_fops =
-{
-	.owner =	THIS_MODULE,
-	.llseek =	sound_lseek,
-	.ioctl =	mixer_ioctl,
-	.open =		mixer_open,
-	.release =	mixer_release,
-};
-
-
-static void __init mixer_init(void)
-{
-	mixer_unit = register_sound_mixer(&mixer_fops, -1);
-	if (mixer_unit < 0)
-		return;
-
-	mixer.busy = 0;
-	sound.treble = 0;
-	sound.bass = 0;
-
-	/* Set Line input, no gain, no attenuation.
-	*/
-	cs4218_control = CS_ISL | CS_ISR | CS_DO1;
-	cs4218_control |= CS_LGAIN_SET(0) | CS_RGAIN_SET(0);
-	cs4218_control |= CS_LATTEN_SET(0) | CS_RATTEN_SET(0);
-	cs4218_ctl_write(cs4218_control);
-}
-
-
-/*
- * Sound queue stuff, the heart of the driver
- */
-
-
-static int sq_allocate_buffers(void)
-{
-	int i;
-
-	if (sound_buffers)
-		return 0;
-	sound_buffers = kmalloc (numBufs * sizeof(char *), GFP_KERNEL);
-	if (!sound_buffers)
-		return -ENOMEM;
-	for (i = 0; i < numBufs; i++) {
-		sound_buffers[i] = sound.mach.dma_alloc (bufSize << 10, GFP_KERNEL);
-		if (!sound_buffers[i]) {
-			while (i--)
-				sound.mach.dma_free (sound_buffers[i], bufSize << 10);
-			kfree (sound_buffers);
-			sound_buffers = 0;
-			return -ENOMEM;
-		}
-	}
-	return 0;
-}
-
-
-static void sq_release_buffers(void)
-{
-	int i;
-
-	if (sound_buffers) {
-		for (i = 0; i < numBufs; i++)
-			sound.mach.dma_free (sound_buffers[i], bufSize << 10);
-		kfree (sound_buffers);
-		sound_buffers = 0;
-	}
-}
-
-
-static int sq_allocate_read_buffers(void)
-{
-	int i;
-
-	if (sound_read_buffers)
-		return 0;
-	sound_read_buffers = kmalloc(numReadBufs * sizeof(char *), GFP_KERNEL);
-	if (!sound_read_buffers)
-		return -ENOMEM;
-	for (i = 0; i < numBufs; i++) {
-		sound_read_buffers[i] = sound.mach.dma_alloc (readbufSize<<10,
-							      GFP_KERNEL);
-		if (!sound_read_buffers[i]) {
-			while (i--)
-				sound.mach.dma_free (sound_read_buffers[i],
-						     readbufSize << 10);
-			kfree (sound_read_buffers);
-			sound_read_buffers = 0;
-			return -ENOMEM;
-		}
-	}
-	return 0;
-}
-
-static void sq_release_read_buffers(void)
-{
-	int i;
-
-	if (sound_read_buffers) {
-		cpmp->cp_smc[1].smc_smcmr &= ~SMCMR_REN;
-		for (i = 0; i < numReadBufs; i++)
-			sound.mach.dma_free (sound_read_buffers[i],
-					     bufSize << 10);
-		kfree (sound_read_buffers);
-		sound_read_buffers = 0;
-	}
-}
-
-
-static void sq_setup(int numBufs, int bufSize, char **write_buffers)
-{
-	int i;
-	volatile cbd_t *bdp;
-	volatile cpm8xx_t	*cp;
-	volatile smc_t	*sp;
-
-	/* Make sure the SMC transmit is shut down.
-	*/
-	cp = cpmp;
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~SMCMR_TEN;
-
-	sq.max_count = numBufs;
-	sq.max_active = numBufs;
-	sq.block_size = bufSize;
-	sq.buffers = write_buffers;
-
-	sq.front = sq.count = 0;
-	sq.rear = -1;
-	sq.syncing = 0;
-	sq.active = 0;
-
-	bdp = tx_base;
-	for (i=0; i<numBufs; i++) {
-		bdp->cbd_bufaddr = virt_to_bus(write_buffers[i]);
-		bdp++;
-	}
-
-	/* This causes the SMC to sync up with the first buffer again.
-	*/
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_TX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-}
-
-static void read_sq_setup(int numBufs, int bufSize, char **read_buffers)
-{
-	int i;
-	volatile cbd_t *bdp;
-	volatile cpm8xx_t	*cp;
-	volatile smc_t	*sp;
-
-	/* Make sure the SMC receive is shut down.
-	*/
-	cp = cpmp;
-	sp = &cpmp->cp_smc[1];
-	sp->smc_smcmr &= ~SMCMR_REN;
-
-	read_sq.max_count = numBufs;
-	read_sq.max_active = numBufs;
-	read_sq.block_size = bufSize;
-	read_sq.buffers = read_buffers;
-
-	read_sq.front = read_sq.count = 0;
-	read_sq.rear = 0;
-	read_sq.rear_size = 0;
-	read_sq.syncing = 0;
-	read_sq.active = 0;
-
-	bdp = rx_base;
-	for (i=0; i<numReadBufs; i++) {
-		bdp->cbd_bufaddr = virt_to_bus(read_buffers[i]);
-		bdp->cbd_datlen = read_sq.block_size;
-		bdp++;
-	}
-
-	/* This causes the SMC to sync up with the first buffer again.
-	*/
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_RX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-}
-
-
-static void sq_play(void)
-{
-	(*sound.mach.play)();
-}
-
-
-/* ++TeSche: radically changed this one too */
-
-static ssize_t sq_write(struct file *file, const char *src, size_t uLeft,
-			loff_t *ppos)
-{
-	ssize_t uWritten = 0;
-	u_char *dest;
-	ssize_t uUsed, bUsed, bLeft;
-
-	/* ++TeSche: Is something like this necessary?
-	 * Hey, that's an honest question! Or does any other part of the
-	 * filesystem already checks this situation? I really don't know.
-	 */
-	if (uLeft == 0)
-		return 0;
-
-	/* The interrupt doesn't start to play the last, incomplete frame.
-	 * Thus we can append to it without disabling the interrupts! (Note
-	 * also that sq.rear isn't affected by the interrupt.)
-	 */
-
-	if (sq.count > 0 && (bLeft = sq.block_size-sq.rear_size) > 0) {
-		dest = sq_block_address(sq.rear);
-		bUsed = sq.rear_size;
-		uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
-		if (uUsed <= 0)
-			return uUsed;
-		src += uUsed;
-		uWritten += uUsed;
-		uLeft -= uUsed;
-		sq.rear_size = bUsed;
-	}
-
-	do {
-		while (sq.count == sq.max_active) {
-			sq_play();
-			if (NON_BLOCKING(sq.open_mode))
-				return uWritten > 0 ? uWritten : -EAGAIN;
-			SLEEP(sq.action_queue);
-			if (SIGNAL_RECEIVED)
-				return uWritten > 0 ? uWritten : -EINTR;
-		}
-
-		/* Here, we can avoid disabling the interrupt by first
-		 * copying and translating the data, and then updating
-		 * the sq variables. Until this is done, the interrupt
-		 * won't see the new frame and we can work on it
-		 * undisturbed.
-		 */
-
-		dest = sq_block_address((sq.rear+1) % sq.max_count);
-		bUsed = 0;
-		bLeft = sq.block_size;
-		uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
-		if (uUsed <= 0)
-			break;
-		src += uUsed;
-		uWritten += uUsed;
-		uLeft -= uUsed;
-		if (bUsed) {
-			sq.rear = (sq.rear+1) % sq.max_count;
-			sq.rear_size = bUsed;
-			sq.count++;
-		}
-	} while (bUsed);   /* uUsed may have been 0 */
-
-	sq_play();
-
-	return uUsed < 0? uUsed: uWritten;
-}
-
-
-/***********/
-
-/* Here is how the values are used for reading.
- * The value 'active' simply indicates the DMA is running.  This is
- * done so the driver semantics are DMA starts when the first read is
- * posted.  The value 'front' indicates the buffer we should next
- * send to the user.  The value 'rear' indicates the buffer the DMA is
- * currently filling.  When 'front' == 'rear' the buffer "ring" is
- * empty (we always have an empty available).  The 'rear_size' is used
- * to track partial offsets into the current buffer.  Right now, I just keep
- * The DMA running.  If the reader can't keep up, the interrupt tosses
- * the oldest buffer.  We could also shut down the DMA in this case.
- */
-static ssize_t sq_read(struct file *file, char *dst, size_t uLeft,
-                       loff_t *ppos)
-{
-
-	ssize_t	uRead, bLeft, bUsed, uUsed;
-
-	if (uLeft == 0)
-		return 0;
-
-	if (!read_sq.active)
-		CS_Record();	/* Kick off the record process. */
-
-	uRead = 0;
-
-	/* Move what the user requests, depending upon other options.
-	*/
-	while (uLeft > 0) {
-
-		/* When front == rear, the DMA is not done yet.
-		*/
-		while (read_sq.front == read_sq.rear) {
-			if (NON_BLOCKING(read_sq.open_mode)) {
-			       return uRead > 0 ? uRead : -EAGAIN;
-			}
-			SLEEP(read_sq.action_queue);
-			if (SIGNAL_RECEIVED)
-				return uRead > 0 ? uRead : -EINTR;
-		}
-
-		/* The amount we move is either what is left in the
-		 * current buffer or what the user wants.
-		 */
-		bLeft = read_sq.block_size - read_sq.rear_size;
-		bUsed = read_sq.rear_size;
-		uUsed = sound_copy_translate_read(dst, uLeft,
-			read_sq.buffers[read_sq.front], &bUsed, bLeft);
-		if (uUsed <= 0)
-			return uUsed;
-		dst += uUsed;
-		uRead += uUsed;
-		uLeft -= uUsed;
-		read_sq.rear_size += bUsed;
-		if (read_sq.rear_size >= read_sq.block_size) {
-			read_sq.rear_size = 0;
-			read_sq.front++;
-			if (read_sq.front >= read_sq.max_active)
-				read_sq.front = 0;
-		}
-	}
-	return uRead;
-}
-
-static int sq_open(struct inode *inode, struct file *file)
-{
-	int rc = 0;
-
-	if (file->f_mode & FMODE_WRITE) {
-		if (sq.busy) {
-			rc = -EBUSY;
-			if (NON_BLOCKING(file->f_flags))
-				goto err_out;
-			rc = -EINTR;
-			while (sq.busy) {
-				SLEEP(sq.open_queue);
-				if (SIGNAL_RECEIVED)
-					goto err_out;
-			}
-		}
-		sq.busy = 1; /* Let's play spot-the-race-condition */
-
-		if (sq_allocate_buffers()) goto err_out_nobusy;
-
-		sq_setup(numBufs, bufSize<<10,sound_buffers);
-		sq.open_mode = file->f_mode;
-	}
-
-
-	if (file->f_mode & FMODE_READ) {
-		if (read_sq.busy) {
-			rc = -EBUSY;
-			if (NON_BLOCKING(file->f_flags))
-				goto err_out;
-			rc = -EINTR;
-			while (read_sq.busy) {
-				SLEEP(read_sq.open_queue);
-				if (SIGNAL_RECEIVED)
-					goto err_out;
-			}
-			rc = 0;
-		}
-		read_sq.busy = 1;
-		if (sq_allocate_read_buffers()) goto err_out_nobusy;
-
-		read_sq_setup(numReadBufs,readbufSize<<10, sound_read_buffers);
-		read_sq.open_mode = file->f_mode;
-	}
-
-	/* Start up the 4218 by:
-	 * Reset.
-	 * Enable, unreset.
-	 */
-	*((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_RSTAUDIO;
-	eieio();
-	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_ENAUDIO;
-	mdelay(50);
-	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
-
-	/* We need to send the current control word in case someone
-	 * opened /dev/mixer and changed things while we were shut
-	 * down.  Chances are good the initialization that follows
-	 * would have done this, but it is still possible it wouldn't.
-	 */
-	cs4218_ctl_write(cs4218_control);
-
-	sound.minDev = iminor(inode) & 0x0f;
-	sound.soft = sound.dsp;
-	sound.hard = sound.dsp;
-	sound_init();
-	if ((iminor(inode) & 0x0f) == SND_DEV_AUDIO) {
-		sound_set_speed(8000);
-		sound_set_stereo(0);
-		sound_set_format(AFMT_MU_LAW);
-	}
-
-	return nonseekable_open(inode, file);
-
-err_out_nobusy:
-	if (file->f_mode & FMODE_WRITE) {
-		sq.busy = 0;
-		WAKE_UP(sq.open_queue);
-	}
-	if (file->f_mode & FMODE_READ) {
-		read_sq.busy = 0;
-		WAKE_UP(read_sq.open_queue);
-	}
-err_out:
-	return rc;
-}
-
-
-static void sq_reset(void)
-{
-	sound_silence();
-	sq.active = 0;
-	sq.count = 0;
-	sq.front = (sq.rear+1) % sq.max_count;
-#if 0
-	init_tdm_buffers();
-#endif
-}
-
-
-static int sq_fsync(struct file *filp, struct dentry *dentry)
-{
-	int rc = 0;
-
-	sq.syncing = 1;
-	sq_play();	/* there may be an incomplete frame waiting */
-
-	while (sq.active) {
-		SLEEP(sq.sync_queue);
-		if (SIGNAL_RECEIVED) {
-			/* While waiting for audio output to drain, an
-			 * interrupt occurred.  Stop audio output immediately
-			 * and clear the queue. */
-			sq_reset();
-			rc = -EINTR;
-			break;
-		}
-	}
-
-	sq.syncing = 0;
-	return rc;
-}
-
-static int sq_release(struct inode *inode, struct file *file)
-{
-	int rc = 0;
-
-	if (sq.busy)
-		rc = sq_fsync(file, file->f_path.dentry);
-	sound.soft = sound.dsp;
-	sound.hard = sound.dsp;
-	sound_silence();
-
-	sq_release_read_buffers();
-	sq_release_buffers();
-
-	if (file->f_mode & FMODE_READ) {
-		read_sq.busy = 0;
-		WAKE_UP(read_sq.open_queue);
-	}
-
-	if (file->f_mode & FMODE_WRITE) {
-		sq.busy = 0;
-		WAKE_UP(sq.open_queue);
-	}
-
-	/* Shut down the SMC.
-	*/
-	cpmp->cp_smc[1].smc_smcmr &= ~(SMCMR_TEN | SMCMR_REN);
-
-	/* Shut down the codec.
-	*/
-	*((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
-	eieio();
-	*((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_ENAUDIO;
-
-	/* Wake up a process waiting for the queue being released.
-	 * Note: There may be several processes waiting for a call
-	 * to open() returning. */
-
-	return rc;
-}
-
-
-static int sq_ioctl(struct inode *inode, struct file *file, u_int cmd,
-		    u_long arg)
-{
-	u_long fmt;
-	int data;
-#if 0
-	int size, nbufs;
-#else
-	int size;
-#endif
-
-	switch (cmd) {
-	case SNDCTL_DSP_RESET:
-		sq_reset();
-		return 0;
-	case SNDCTL_DSP_POST:
-	case SNDCTL_DSP_SYNC:
-		return sq_fsync(file, file->f_path.dentry);
-
-		/* ++TeSche: before changing any of these it's
-		 * probably wise to wait until sound playing has
-		 * settled down. */
-	case SNDCTL_DSP_SPEED:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_speed(data));
-	case SNDCTL_DSP_STEREO:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_stereo(data));
-	case SOUND_PCM_WRITE_CHANNELS:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_stereo(data-1)+1);
-	case SNDCTL_DSP_SETFMT:
-		sq_fsync(file, file->f_path.dentry);
-		IOCTL_IN(arg, data);
-		return IOCTL_OUT(arg, sound_set_format(data));
-	case SNDCTL_DSP_GETFMTS:
-		fmt = 0;
-		if (sound.trans_write) {
-			if (sound.trans_write->ct_ulaw)
-				fmt |= AFMT_MU_LAW;
-			if (sound.trans_write->ct_alaw)
-				fmt |= AFMT_A_LAW;
-			if (sound.trans_write->ct_s8)
-				fmt |= AFMT_S8;
-			if (sound.trans_write->ct_u8)
-				fmt |= AFMT_U8;
-			if (sound.trans_write->ct_s16be)
-				fmt |= AFMT_S16_BE;
-			if (sound.trans_write->ct_u16be)
-				fmt |= AFMT_U16_BE;
-			if (sound.trans_write->ct_s16le)
-				fmt |= AFMT_S16_LE;
-			if (sound.trans_write->ct_u16le)
-				fmt |= AFMT_U16_LE;
-		}
-		return IOCTL_OUT(arg, fmt);
-	case SNDCTL_DSP_GETBLKSIZE:
-		size = sq.block_size
-			* sound.soft.size * (sound.soft.stereo + 1)
-			/ (sound.hard.size * (sound.hard.stereo + 1));
-		return IOCTL_OUT(arg, size);
-	case SNDCTL_DSP_SUBDIVIDE:
-		break;
-#if 0	/* Sorry can't do this at the moment.  The CPM allocated buffers
-	 * long ago that can't be changed.
-	 */
-	case SNDCTL_DSP_SETFRAGMENT:
-		if (sq.count || sq.active || sq.syncing)
-			return -EINVAL;
-		IOCTL_IN(arg, size);
-		nbufs = size >> 16;
-		if (nbufs < 2 || nbufs > numBufs)
-			nbufs = numBufs;
-		size &= 0xffff;
-		if (size >= 8 && size <= 30) {
-			size = 1 << size;
-			size *= sound.hard.size * (sound.hard.stereo + 1);
-			size /= sound.soft.size * (sound.soft.stereo + 1);
-			if (size > (bufSize << 10))
-				size = bufSize << 10;
-		} else
-			size = bufSize << 10;
-		sq_setup(numBufs, size, sound_buffers);
-		sq.max_active = nbufs;
-		return 0;
-#endif
-
-	default:
-		return mixer_ioctl(inode, file, cmd, arg);
-	}
-	return -EINVAL;
-}
-
-
-
-static const struct file_operations sq_fops =
-{
-	.owner =	THIS_MODULE,
-	.llseek =	sound_lseek,
-	.read =		sq_read,			/* sq_read */
-	.write =	sq_write,
-	.ioctl =	sq_ioctl,
-	.open =		sq_open,
-	.release =	sq_release,
-};
-
-
-static void __init sq_init(void)
-{
-	sq_unit = register_sound_dsp(&sq_fops, -1);
-	if (sq_unit < 0)
-		return;
-
-	init_waitqueue_head(&sq.action_queue);
-	init_waitqueue_head(&sq.open_queue);
-	init_waitqueue_head(&sq.sync_queue);
-	init_waitqueue_head(&read_sq.action_queue);
-	init_waitqueue_head(&read_sq.open_queue);
-	init_waitqueue_head(&read_sq.sync_queue);
-
-	sq.busy = 0;
-	read_sq.busy = 0;
-
-	/* whatever you like as startup mode for /dev/dsp,
-	 * (/dev/audio hasn't got a startup mode). note that
-	 * once changed a new open() will *not* restore these!
-	 */
-	sound.dsp.format = AFMT_S16_BE;
-	sound.dsp.stereo = 1;
-	sound.dsp.size = 16;
-
-	/* set minimum rate possible without expanding */
-	sound.dsp.speed = 8000;
-
-	/* before the first open to /dev/dsp this wouldn't be set */
-	sound.soft = sound.dsp;
-	sound.hard = sound.dsp;
-
-	sound_silence();
-}
-
-/*
- * /dev/sndstat
- */
-
-
-/* state.buf should not overflow! */
-
-static int state_open(struct inode *inode, struct file *file)
-{
-	char *buffer = state.buf, *mach = "", cs4218_buf[50];
-	int len = 0;
-
-	if (state.busy)
-		return -EBUSY;
-
-	state.ptr = 0;
-	state.busy = 1;
-
-	sprintf(cs4218_buf, "Crystal CS4218 on TDM, ");
-	mach = cs4218_buf;
-
-	len += sprintf(buffer+len, "%sDMA sound driver:\n", mach);
-
-	len += sprintf(buffer+len, "\tsound.format = 0x%x", sound.soft.format);
-	switch (sound.soft.format) {
-	case AFMT_MU_LAW:
-		len += sprintf(buffer+len, " (mu-law)");
-		break;
-	case AFMT_A_LAW:
-		len += sprintf(buffer+len, " (A-law)");
-		break;
-	case AFMT_U8:
-		len += sprintf(buffer+len, " (unsigned 8 bit)");
-		break;
-	case AFMT_S8:
-		len += sprintf(buffer+len, " (signed 8 bit)");
-		break;
-	case AFMT_S16_BE:
-		len += sprintf(buffer+len, " (signed 16 bit big)");
-		break;
-	case AFMT_U16_BE:
-		len += sprintf(buffer+len, " (unsigned 16 bit big)");
-		break;
-	case AFMT_S16_LE:
-		len += sprintf(buffer+len, " (signed 16 bit little)");
-		break;
-	case AFMT_U16_LE:
-		len += sprintf(buffer+len, " (unsigned 16 bit little)");
-		break;
-	}
-	len += sprintf(buffer+len, "\n");
-	len += sprintf(buffer+len, "\tsound.speed = %dHz (phys. %dHz)\n",
-		       sound.soft.speed, sound.hard.speed);
-	len += sprintf(buffer+len, "\tsound.stereo = 0x%x (%s)\n",
-		       sound.soft.stereo, sound.soft.stereo ? "stereo" : "mono");
-	len += sprintf(buffer+len, "\tsq.block_size = %d sq.max_count = %d"
-		       " sq.max_active = %d\n",
-		       sq.block_size, sq.max_count, sq.max_active);
-	len += sprintf(buffer+len, "\tsq.count = %d sq.rear_size = %d\n", sq.count,
-		       sq.rear_size);
-	len += sprintf(buffer+len, "\tsq.active = %d sq.syncing = %d\n",
-		       sq.active, sq.syncing);
-	state.len = len;
-	return nonseekable_open(inode, file);
-}
-
-
-static int state_release(struct inode *inode, struct file *file)
-{
-	state.busy = 0;
-	return 0;
-}
-
-
-static ssize_t state_read(struct file *file, char *buf, size_t count,
-			  loff_t *ppos)
-{
-	int n = state.len - state.ptr;
-	if (n > count)
-		n = count;
-	if (n <= 0)
-		return 0;
-	if (copy_to_user(buf, &state.buf[state.ptr], n))
-		return -EFAULT;
-	state.ptr += n;
-	return n;
-}
-
-
-static const struct file_operations state_fops =
-{
-	.owner =	THIS_MODULE,
-	.llseek =	sound_lseek,
-	.read =		state_read,
-	.open =		state_open,
-	.release =	state_release,
-};
-
-
-static void __init state_init(void)
-{
-	state_unit = register_sound_special(&state_fops, SND_DEV_STATUS);
-	if (state_unit < 0)
-		return;
-	state.busy = 0;
-}
-
-
-/*** Common stuff ********************************************************/
-
-static long long sound_lseek(struct file *file, long long offset, int orig)
-{
-	return -ESPIPE;
-}
-
-
-/*** Config & Setup **********************************************************/
-
-
-int __init tdm8xx_sound_init(void)
-{
-	int i, has_sound;
-	uint			dp_offset;
-	volatile uint		*sirp;
-	volatile cbd_t		*bdp;
-	volatile cpm8xx_t	*cp;
-	volatile smc_t		*sp;
-	volatile smc_uart_t	*up;
-	volatile immap_t	*immap;
-
-	has_sound = 0;
-
-	/* Program the SI/TSA to use TDMa, connected to SMC2, for 4 bytes.
-	*/
-	cp = cpmp;	/* Get pointer to Communication Processor */
-	immap = (immap_t *)IMAP_ADDR;	/* and to internal registers */
-
-	/* Set all TDMa control bits to zero.  This enables most features
-	 * we want.
-	 */
-	cp->cp_simode &= ~0x00000fff;
-
-	/* Enable common receive/transmit clock pins, use IDL format.
-	 * Sync on falling edge, transmit rising clock, receive falling
-	 * clock, delay 1 bit on both Tx and Rx.  Common Tx/Rx clocks and
-	 * sync.
-	 * Connect SMC2 to TSA.
-	 */
-	cp->cp_simode |= 0x80000141;
-
-	/* Configure port A pins for TDMa operation.
-	 * The RPX-Lite (MPC850/823) loses SMC2 when TDM is used.
-	 */
-	immap->im_ioport.iop_papar |= 0x01c0; /* Enable TDMa functions */
-	immap->im_ioport.iop_padir |= 0x00c0; /* Enable TDMa Tx/Rx */
-	immap->im_ioport.iop_padir &= ~0x0100; /* Enable L1RCLKa */
-
-	immap->im_ioport.iop_pcpar |= 0x0800; /* Enable L1RSYNCa */
-	immap->im_ioport.iop_pcdir &= ~0x0800;
-
-	/* Initialize the SI TDM routing table.  We use TDMa only.
-	 * The receive table and transmit table each have only one
-	 * entry, to capture/send four bytes after each frame pulse.
-	 * The 16-bit ram entry is 0000 0001 1000 1111. (SMC2)
-	 */
-	cp->cp_sigmr = 0;
-	sirp = (uint *)cp->cp_siram;
-
-	*sirp = 0x018f0000;		/* Receive entry */
-	sirp += 64;
-	*sirp = 0x018f0000;		/* Tramsmit entry */
-
-	/* Enable single TDMa routing.
-	*/
-	cp->cp_sigmr = 0x04;
-
-	/* Initialize the SMC for transparent operation.
-	*/
-	sp = &cpmp->cp_smc[1];
-	up = (smc_uart_t *)&cp->cp_dparam[PROFF_SMC2];
-
-	/* We need to allocate a transmit and receive buffer
-	 * descriptors from dual port ram.
-	 */
-	dp_addr = cpm_dpalloc(sizeof(cbd_t) * numReadBufs, 8);
-
-	/* Set the physical address of the host memory
-	 * buffers in the buffer descriptors, and the
-	 * virtual address for us to work with.
-	 */
-	bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
-	up->smc_rbase = dp_offset;
-	rx_cur = rx_base = (cbd_t *)bdp;
-
-	for (i=0; i<(numReadBufs-1); i++) {
-		bdp->cbd_bufaddr = 0;
-		bdp->cbd_datlen = 0;
-		bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT;
-		bdp++;
-	}
-	bdp->cbd_bufaddr = 0;
-	bdp->cbd_datlen = 0;
-	bdp->cbd_sc = BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT;
-
-	/* Now, do the same for the transmit buffers.
-	*/
-	dp_offset = cpm_dpalloc(sizeof(cbd_t) * numBufs, 8);
-
-	bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
-	up->smc_tbase = dp_offset;
-	tx_cur = tx_base = (cbd_t *)bdp;
-
-	for (i=0; i<(numBufs-1); i++) {
-		bdp->cbd_bufaddr = 0;
-		bdp->cbd_datlen = 0;
-		bdp->cbd_sc = BD_SC_INTRPT;
-		bdp++;
-	}
-	bdp->cbd_bufaddr = 0;
-	bdp->cbd_datlen = 0;
-	bdp->cbd_sc = (BD_SC_WRAP | BD_SC_INTRPT);
-
-	/* Set transparent SMC mode.
-	 * A few things are specific to our application.  The codec interface
-	 * is MSB first, hence the REVD selection.  The CD/CTS pulse are
-	 * used by the TSA to indicate the frame start to the SMC.
-	 */
-	up->smc_rfcr = SCC_EB;
-	up->smc_tfcr = SCC_EB;
-	up->smc_mrblr = readbufSize * 1024;
-
-	/* Set 16-bit reversed data, transparent mode.
-	*/
-	sp->smc_smcmr = smcr_mk_clen(15) |
-		SMCMR_SM_TRANS | SMCMR_REVD | SMCMR_BS;
-
-	/* Enable and clear events.
-	 * Because of FIFO delays, all we need is the receive interrupt
-	 * and we can process both the current receive and current
-	 * transmit interrupt within a few microseconds of the transmit.
-	 */
-	sp->smc_smce = 0xff;
-	sp->smc_smcm = SMCM_TXE | SMCM_TX | SMCM_RX;
-
-	/* Send the CPM an initialize command.
-	*/
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-				CPM_CR_INIT_TRX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-
-	sound.mach = mach_cs4218;
-	has_sound = 1;
-
-	/* Initialize beep stuff */
-	orig_mksound = kd_mksound;
-	kd_mksound = cs_mksound;
-	beep_buf = kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
-	if (beep_buf == NULL)
-		printk(KERN_WARNING "dmasound: no memory for "
-		       "beep buffer\n");
-
-	if (!has_sound)
-		return -ENODEV;
-
-	/* Initialize the software SPI.
-	*/
-	sw_spi_init();
-
-	/* Set up sound queue, /dev/audio and /dev/dsp. */
-
-	/* Set default settings. */
-	sq_init();
-
-	/* Set up /dev/sndstat. */
-	state_init();
-
-	/* Set up /dev/mixer. */
-	mixer_init();
-
-	if (!sound.mach.irqinit()) {
-		printk(KERN_ERR "DMA sound driver: Interrupt initialization failed\n");
-		return -ENODEV;
-	}
-#ifdef MODULE
-	irq_installed = 1;
-#endif
-
-	printk(KERN_INFO "DMA sound driver installed, using %d buffers of %dk.\n",
-	       numBufs, bufSize);
-
-	return 0;
-}
-
-/* Due to FIFOs and bit delays, the transmit interrupt occurs a few
- * microseconds ahead of the receive interrupt.
- * When we get an interrupt, we service the transmit first, then
- * check for a receive to prevent the overhead of returning through
- * the interrupt handler only to get back here right away during
- * full duplex operation.
- */
-static void
-cs4218_intr(void *dev_id)
-{
-	volatile smc_t	*sp;
-	volatile cpm8xx_t	*cp;
-
-	sp = &cpmp->cp_smc[1];
-
-	if (sp->smc_smce & SCCM_TX) {
-		sp->smc_smce = SCCM_TX;
-		cs4218_tdm_tx_intr((void *)sp);
-	}
-
-	if (sp->smc_smce & SCCM_RX) {
-		sp->smc_smce = SCCM_RX;
-		cs4218_tdm_rx_intr((void *)sp);
-	}
-
-	if (sp->smc_smce & SCCM_TXE) {
-		/* Transmit underrun.  This happens with the application
-		 * didn't keep up sending buffers.  We tell the SMC to
-		 * restart, which will cause it to poll the current (next)
-		 * BD.  If the user supplied data since this occurred,
-		 * we just start running again.  If they didn't, the SMC
-		 * will poll the descriptor until data is placed there.
-		 */
-		sp->smc_smce = SCCM_TXE;
-		cp = cpmp;	/* Get pointer to Communication Processor */
-		cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
-					CPM_CR_RESTART_TX) | CPM_CR_FLG;
-		while (cp->cp_cpcr & CPM_CR_FLG);
-	}
-}
-
-
-#define MAXARGS		8	/* Should be sufficient for now */
-
-void __init dmasound_setup(char *str, int *ints)
-{
-	/* check the bootstrap parameter for "dmasound=" */
-
-	switch (ints[0]) {
-	case 3:
-		if ((ints[3] < 0) || (ints[3] > MAX_CATCH_RADIUS))
-			printk("dmasound_setup: invalid catch radius, using default = %d\n", catchRadius);
-		else
-			catchRadius = ints[3];
-		/* fall through */
-	case 2:
-		if (ints[1] < MIN_BUFFERS)
-			printk("dmasound_setup: invalid number of buffers, using default = %d\n", numBufs);
-		else
-			numBufs = ints[1];
-		if (ints[2] < MIN_BUFSIZE || ints[2] > MAX_BUFSIZE)
-			printk("dmasound_setup: invalid buffer size, using default = %d\n", bufSize);
-		else
-			bufSize = ints[2];
-		break;
-	case 0:
-		break;
-	default:
-		printk("dmasound_setup: invalid number of arguments\n");
-	}
-}
-
-/* Software SPI functions.
- * These are on Port B.
- */
-#define PB_SPICLK	((uint)0x00000002)
-#define PB_SPIMOSI	((uint)0x00000004)
-#define PB_SPIMISO	((uint)0x00000008)
-
-static
-void	sw_spi_init(void)
-{
-	volatile cpm8xx_t	*cp;
-	volatile uint		*hcsr4;
-
-	hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
-	cp = cpmp;	/* Get pointer to Communication Processor */
-
-	*hcsr4 &= ~HIOX_CSR4_AUDSPISEL;	/* Disable SPI select */
-
-	/* Make these Port B signals general purpose I/O.
-	 * First, make sure the clock is low.
-	 */
-	cp->cp_pbdat &= ~PB_SPICLK;
-	cp->cp_pbpar &= ~(PB_SPICLK | PB_SPIMOSI | PB_SPIMISO);
-
-	/* Clock and Master Output are outputs.
-	*/
-	cp->cp_pbdir |= (PB_SPICLK | PB_SPIMOSI);
-
-	/* Master Input.
-	*/
-	cp->cp_pbdir &= ~PB_SPIMISO;
-
-}
-
-/* Write the CS4218 control word out the SPI port.  While the
- * the control word is going out, the status word is arriving.
- */
-static
-uint	cs4218_ctl_write(uint ctlreg)
-{
-	uint	status;
-
-	sw_spi_io((u_char *)&ctlreg, (u_char *)&status, 4);
-
-	/* Shadow the control register.....I guess we could do
-	 * the same for the status, but for now we just return it
-	 * and let the caller decide.
-	 */
-	cs4218_control = ctlreg;
-	return status;
-}
-
-static
-void	sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt)
-{
-	int	bits, i;
-	u_char	outbyte, inbyte;
-	volatile cpm8xx_t	*cp;
-	volatile uint		*hcsr4;
-
-	hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
-	cp = cpmp;	/* Get pointer to Communication Processor */
-
-	/* The timing on the bus is pretty slow.  Code inefficiency
-	 * and eieio() is our friend here :-).
-	 */
-	cp->cp_pbdat &= ~PB_SPICLK;
-	*hcsr4 |= HIOX_CSR4_AUDSPISEL;	/* Enable SPI select */
-	eieio();
-
-	/* Clock in/out the bytes.  Data is valid on the falling edge
-	 * of the clock.  Data is MSB first.
-	 */
-	for (i=0; i<bcnt; i++) {
-		outbyte = *obuf++;
-		inbyte = 0;
-		for (bits=0; bits<8; bits++) {
-			eieio();
-			cp->cp_pbdat |= PB_SPICLK;
-			eieio();
-			if (outbyte & 0x80)
-				cp->cp_pbdat |= PB_SPIMOSI;
-			else
-				cp->cp_pbdat &= ~PB_SPIMOSI;
-			eieio();
-			cp->cp_pbdat &= ~PB_SPICLK;
-			eieio();
-			outbyte <<= 1;
-			inbyte <<= 1;
-			if (cp->cp_pbdat & PB_SPIMISO)
-				inbyte |= 1;
-		}
-		*ibuf++ = inbyte;
-	}
-
-	*hcsr4 &= ~HIOX_CSR4_AUDSPISEL;	/* Disable SPI select */
-	eieio();
-}
-
-void cleanup_module(void)
-{
-	if (irq_installed) {
-		sound_silence();
-#ifdef MODULE
-		sound.mach.irqcleanup();
-#endif
-	}
-
-	sq_release_read_buffers();
-	sq_release_buffers();
-
-	if (mixer_unit >= 0)
-		unregister_sound_mixer(mixer_unit);
-	if (state_unit >= 0)
-		unregister_sound_special(state_unit);
-	if (sq_unit >= 0)
-		unregister_sound_dsp(sq_unit);
-}
-
-module_init(tdm8xx_sound_init);
-module_exit(cleanup_module);
-

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2007-03-27 20:13 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-03-25 14:58 [RFC: 2.6 patch] powerpc: remove the unused HTDMSOUND driver Adrian Bunk
2007-03-26 23:52 ` Marcelo Tosatti
2007-03-27 20:13   ` Dan Malek
  -- strict thread matches above, loose matches on Subject: below --
2007-03-07 22:41 Adrian Bunk

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