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From: Adrian Bunk <bunk@stusta.de>
To: sparclinux@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [RFC: 2.6 patch] remove the broken SUN_AURORA driver
Date: Thu, 4 Jan 2007 19:53:38 +0100	[thread overview]
Message-ID: <20070104185338.GH20714@stusta.de> (raw)

The SUN_AURORA driver:
- has been marked as BROKEN for more than two years and
- is still marked as BROKEN.

Drivers that had been marked as BROKEN for such a long time seem to be
unlikely to be revived in the forseeable future.

But if anyone wants to ever revive this driver, the code is still
present in the older kernel releases.

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

---

 Documentation/magic-number.txt |    1 
 drivers/sbus/char/Kconfig      |    7 
 drivers/sbus/char/Makefile     |    1 
 drivers/sbus/char/aurora.c     | 2364 ---------------------------------
 drivers/sbus/char/aurora.h     |  276 ---
 drivers/sbus/char/cd180.h      |  240 ---
 6 files changed, 2889 deletions(-)

--- linux-2.6.20-rc2-mm1/drivers/sbus/char/Kconfig.old	2007-01-04 18:09:26.000000000 +0100
+++ linux-2.6.20-rc2-mm1/drivers/sbus/char/Kconfig	2007-01-04 18:09:37.000000000 +0100
@@ -46,13 +46,6 @@
 	  based on the Phillips SAA9051, can handle NTSC and PAL/SECAM and
 	  SVIDEO signals.
 
-config SUN_AURORA
-	tristate "Aurora Multiboard 1600se (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && BROKEN
-	help
-	  The Aurora Multiboard is a multi-port high-speed serial controller.
-	  If you have one of these, say Y.
-
 config TADPOLE_TS102_UCTRL
 	tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL && SPARC32
--- linux-2.6.20-rc2-mm1/drivers/sbus/char/Makefile.old	2007-01-04 18:09:46.000000000 +0100
+++ linux-2.6.20-rc2-mm1/drivers/sbus/char/Makefile	2007-01-04 18:09:49.000000000 +0100
@@ -19,7 +19,6 @@
 obj-$(CONFIG_SUN_MOSTEK_RTC)		+= rtc.o
 obj-$(CONFIG_SUN_BPP)			+= bpp.o
 obj-$(CONFIG_SUN_VIDEOPIX)		+= vfc.o
-obj-$(CONFIG_SUN_AURORA)		+= aurora.o
 obj-$(CONFIG_TADPOLE_TS102_UCTRL)	+= uctrl.o
 obj-$(CONFIG_SUN_JSFLASH)		+= jsflash.o
 obj-$(CONFIG_BBC_I2C)			+= bbc.o
--- linux-2.6.20-rc2-mm1/Documentation/magic-number.txt.old	2007-01-04 18:10:07.000000000 +0100
+++ linux-2.6.20-rc2-mm1/Documentation/magic-number.txt	2007-01-04 18:10:13.000000000 +0100
@@ -65,7 +65,6 @@
 MKISS_DRIVER_MAGIC    0x04bf      mkiss_channel     drivers/net/mkiss.h
 RISCOM8_MAGIC         0x0907      riscom_port       drivers/char/riscom8.h
 SPECIALIX_MAGIC       0x0907      specialix_port    drivers/char/specialix_io8.h
-AURORA_MAGIC          0x0A18      Aurora_port       drivers/sbus/char/aurora.h
 HDLC_MAGIC            0x239e      n_hdlc            drivers/char/n_hdlc.c
 APM_BIOS_MAGIC        0x4101      apm_user          arch/i386/kernel/apm.c
 CYCLADES_MAGIC        0x4359      cyclades_port     include/linux/cyclades.h
--- linux-2.6.20-rc2-mm1/drivers/sbus/char/aurora.h	2006-11-29 22:57:37.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,276 +0,0 @@
-/*	$Id: aurora.h,v 1.6 2001/06/05 12:23:38 davem Exp $
- *	linux/drivers/sbus/char/aurora.h -- Aurora multiport driver
- *
- *	Copyright (c) 1999 by Oliver Aldulea (oli@bv.ro)
- *
- *	This code is based on the RISCom/8 multiport serial driver written
- *	by Dmitry Gorodchanin (pgmdsg@ibi.com), based on the Linux serial
- *	driver, written by Linus Torvalds, Theodore T'so and others.
- *	The Aurora multiport programming info was obtained mainly from the
- *	Cirrus Logic CD180 documentation (available on the web), and by
- *	doing heavy tests on the board. Many thanks to Eddie C. Dost for the
- *	help on the sbus interface.
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
- *	This program is distributed in the hope that it will be useful,
- *	but WITHOUT ANY WARRANTY; without even the implied warranty of
- *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *	GNU General Public License for more details.
- *
- *	You should have received a copy of the GNU General Public License
- *	along with this program; if not, write to the Free Software
- *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	Revision 1.0
- *
- *	This is the first public release.
- *
- *	This version needs a lot of feedback. This is the version that works
- *	with _my_ board. My board is model 1600se, revision '@(#)1600se.fth
- *	1.2 3/28/95 1'. The driver might work with your board, but I do not
- *	guarantee it. If you have _any_ type of board, I need to know if the
- *	driver works or not, I need to know exactly your board parameters
- *	(get them with 'cd /proc/openprom/iommu/sbus/sio16/; ls *; cat *')
- *	Also, I need your board revision code, which is written on the board.
- *	Send me the output of my driver too (it outputs through klogd).
- *
- *	If the driver does not work, you can try enabling the debug options
- *	to see what's wrong or what should be done.
- *
- *	I'm sorry about the alignment of the code. It was written in a
- *	128x48 environment.
- *
- *	I must say that I do not like Aurora Technologies' policy. I asked
- *	them to help me do this driver faster, but they ended by something
- *	like "don't call us, we'll call you", and I never heard anything
- *	from them. They told me "knowing the way the board works, I don't
- *	doubt you and others on the net will make the driver."
- *	The truth about this board is that it has nothing intelligent on it.
- *	If you want to say to somebody what kind of board you have, say that
- *	it uses Cirrus Logic processors (CD180). The power of the board is
- *	in those two chips. The rest of the board is the interface to the
- *	sbus and to the peripherals. Still, they did something smart: they
- *	reversed DTR and RTS to make on-board automatic hardware flow
- *	control usable.
- *	Thanks to Aurora Technologies for wasting my time, nerves and money.
- */
-
-#ifndef __LINUX_AURORA_H
-#define __LINUX_AURORA_H
-
-#include <linux/serial.h>
-#include <linux/serialP.h>
-
-#ifdef __KERNEL__
-
-/* This is the number of boards to support. I've only tested this driver with
- * one board, so it might not work.
- */
-#define AURORA_NBOARD 1
-
-/* Useful ? Yes. But you can safely comment the warnings if they annoy you
- * (let me say that again: the warnings in the code, not this define). 
- */
-#define AURORA_PARANOIA_CHECK
-
-/* Well, after many lost nights, I found that the IRQ for this board is
- * selected from four built-in values by writing some bits in the
- * configuration register. This causes a little problem to occur: which
- * IRQ to select ? Which one is the best for the user ? Well, I finally
- * decided for the following algorithm: if the "bintr" value is not acceptable
- * (not within type_1_irq[], then test the "intr" value, if that fails too,
- * try each value from type_1_irq until succeded. Hope it's ok.
- * You can safely reorder the irq's.
- */
-#define TYPE_1_IRQS 4
-unsigned char type_1_irq[TYPE_1_IRQS] = {
-	3, 5, 9, 13
-};
-/* I know something about another method of interrupt setting, but not enough.
- * Also, this is for another type of board, so I first have to learn how to
- * detect it.
-#define TYPE_2_IRQS 3
-unsigned char type_2_irq[TYPE_2_IRQS] = {
-	0, 0, 0 ** could anyone find these for me ? (see AURORA_ALLIRQ below) **
-	};
-unsigned char type_2_mask[TYPE_2_IRQS] = {
-	32, 64, 128
-	};
-*/
-
-/* The following section should only be modified by those who know what
- * they're doing (or don't, but want to help with some feedback). Modifying
- * anything raises a _big_ probability for your system to hang, but the
- * sacrifice worths. (I sacrificed my ext2fs many, many times...)
- */
-
-/* This one tries to dump to console the name of almost every function called,
- * and many other debugging info.
- */
-#undef AURORA_DEBUG
-
-/* These are the most dangerous and useful defines. They do printk() during
- * the interrupt processing routine(s), so if you manage to get "flooded" by
- * irq's, start thinking about the "Power off/on" button...
- */
-#undef AURORA_INTNORM	/* This one enables the "normal" messages, but some
-			 * of them cause flood, so I preffered putting
-			 * them under a define */
-#undef AURORA_INT_DEBUG /* This one is really bad. */
-
-/* Here's something helpful: after n irq's, the board will be disabled. This
- * prevents irq flooding during debug (no need to think about power
- * off/on anymore...)
- */
-#define AURORA_FLOODPRO	10
-
-/* This one helps finding which irq the board calls, in case of a strange/
- * unsupported board. AURORA_INT_DEBUG should be enabled, because I don't
- * think /proc/interrupts or any command will be available in case of an irq
- * flood... "allirq" is the list of all free irq's.
- */
-/*
-#define AURORA_ALLIRQ 6
-int allirq[AURORA_ALLIRQ]={
-	2,3,5,7,9,13
-	};
-*/
-
-/* These must not be modified. These values are assumed during the code for
- * performance optimisations.
- */
-#define AURORA_NCD180 2 /* two chips per board */
-#define AURORA_NPORT 8  /* 8 ports per chip */
-
-/* several utilities */
-#define AURORA_BOARD(line)	(((line) >> 4) & 0x01)
-#define AURORA_CD180(line)	(((line) >> 3) & 0x01)
-#define AURORA_PORT(line)	((line) & 15)
-
-#define AURORA_TNPORTS (AURORA_NBOARD*AURORA_NCD180*AURORA_NPORT)
-
-/* Ticks per sec. Used for setting receiver timeout and break length */
-#define AURORA_TPS		4000
-
-#define AURORA_MAGIC	0x0A18
-
-/* Yeah, after heavy testing I decided it must be 6.
- * Sure, You can change it if needed.
- */
-#define AURORA_RXFIFO		6	/* Max. receiver FIFO size (1-8) */
-
-#define AURORA_RXTH		7
-
-struct aurora_reg1 {
-	__volatile__ unsigned char r;
-};
-
-struct aurora_reg128 {
-	__volatile__ unsigned char r[128];
-};
-	
-struct aurora_reg4 {
-	__volatile__ unsigned char r[4];
-};
-
-struct Aurora_board {
-	unsigned long		flags;
-	struct aurora_reg1	* r0;	/* This is the board configuration
-					 * register (write-only). */
-	struct aurora_reg128	* r[2];	/* These are the registers for the
-					 * two chips. */
-	struct aurora_reg4	* r3;	/* These are used for hardware-based
-					 * acknowledge. Software-based ack is
-					 * not supported by CD180. */
-	unsigned int		oscfreq; /* The on-board oscillator
-					  * frequency, in Hz. */
-	unsigned char		irq;
-#ifdef MODULE
-	signed char		count;	/* counts the use of the board */
-#endif
-	/* Values for the dtr_rts swapped mode. */
-	unsigned char		DTR;
-	unsigned char		RTS;
-	unsigned char		MSVDTR;
-	unsigned char		MSVRTS;
-	/* Values for hardware acknowledge. */
-	unsigned char		ACK_MINT, ACK_TINT, ACK_RINT;
-};
-
-/* Board configuration register */
-#define AURORA_CFG_ENABLE_IO	8
-#define AURORA_CFG_ENABLE_IRQ	4
-
-/* Board flags */
-#define AURORA_BOARD_PRESENT		0x00000001
-#define AURORA_BOARD_ACTIVE		0x00000002
-#define AURORA_BOARD_TYPE_2		0x00000004	/* don't know how to
-							 * detect this yet */
-#define AURORA_BOARD_DTR_FLOW_OK	0x00000008
-
-/* The story goes like this: Cirrus programmed the CD-180 chip to do automatic
- * hardware flow control, and do it using CTS and DTR. CTS is ok, but, if you
- * have a modem and the chip drops DTR, then the modem will drop the carrier
- * (ain't that cute...). Luckily, the guys at Aurora decided to swap DTR and
- * RTS, which makes the flow control usable. I hope that all the boards made
- * by Aurora have these two signals swapped. If your's doesn't but you have a
- * breakout box, you can try to reverse them yourself, then set the following
- * flag.
- */
-#undef AURORA_FORCE_DTR_FLOW
-
-/* In fact, a few more words have to be said about hardware flow control.
- * This driver handles "output" flow control through the on-board facility
- * CTS Auto Enable. For the "input" flow control there are two cases when
- * the flow should be controlled. The first case is when the kernel is so
- * busy that it cannot process IRQ's in time; this flow control can only be
- * activated by the on-board chip, and if the board has RTS and DTR swapped,
- * this facility is usable. The second case is when the application is so
- * busy that it cannot receive bytes from the kernel, and this flow must be
- * activated by software. This second case is not yet implemented in this
- * driver. Unfortunately, I estimate that the second case is the one that
- * occurs the most.
- */
-
-
-struct Aurora_port {
-	int			magic;
-	int			baud_base;
-	int			flags;
-	struct tty_struct 	* tty;
-	int			count;
-	int			blocked_open;
-	long			event;
-	int			timeout;
-	int			close_delay;
-	unsigned char 		* xmit_buf;
-	int			custom_divisor;
-	int			xmit_head;
-	int			xmit_tail;
-	int			xmit_cnt;
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
-	struct tq_struct	tqueue;
-	struct tq_struct	tqueue_hangup;
-	short			wakeup_chars;
-	short			break_length;
-	unsigned short		closing_wait;
-	unsigned char		mark_mask;
-	unsigned char		SRER;
-	unsigned char		MSVR;
-	unsigned char		COR2;
-#ifdef AURORA_REPORT_OVERRUN
-	unsigned long		overrun;
-#endif	
-#ifdef AURORA_REPORT_FIFO
-	unsigned long		hits[10];
-#endif
-};
-
-#endif
-#endif /*__LINUX_AURORA_H*/
-
--- linux-2.6.20-rc2-mm1/drivers/sbus/char/cd180.h	2006-11-29 22:57:37.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,240 +0,0 @@
-
-/* Definitions for Cirrus Logic CL-CD180 8-port async mux chip */
-#define CD180_NCH       8       /* Total number of channels                */
-#define CD180_TPC       16      /* Ticks per character                     */
-#define CD180_NFIFO	8	/* TX FIFO size                            */
-
-/* Global registers */
-#define CD180_GFRCR	0x6b	/* Global Firmware Revision Code Register  */
-#define CD180_SRCR	0x66	/* Service Request Configuration Register  */
-#define CD180_PPRH	0x70	/* Prescaler Period Register High	   */
-#define CD180_PPRL	0x71	/* Prescaler Period Register Low	   */
-#define CD180_MSMR	0x61	/* Modem Service Match Register		   */
-#define CD180_TSMR	0x62	/* Transmit Service Match Register	   */
-#define CD180_RSMR	0x63	/* Receive Service Match Register	   */
-#define CD180_GSVR	0x40	/* Global Service Vector Register	   */
-#define CD180_SRSR	0x65	/* Service Request Status Register	   */
-#define CD180_GSCR	0x41	/* Global Service Channel Register	   */
-#define CD180_CAR	0x64	/* Channel Access Register		   */
-
-/* Indexed registers */
-#define CD180_RDCR	0x07	/* Receive Data Count Register		   */
-#define CD180_RDR	0x78	/* Receiver Data Register		   */
-#define CD180_RCSR	0x7a	/* Receiver Character Status Register	   */
-#define CD180_TDR	0x7b	/* Transmit Data Register		   */
-#define CD180_EOSRR	0x7f	/* End of Service Request Register	   */
-
-/* Channel Registers */
-#define CD180_SRER      0x02    /* Service Request Enable Register         */
-#define CD180_CCR       0x01    /* Channel Command Register                */
-#define CD180_COR1      0x03    /* Channel Option Register 1               */
-#define CD180_COR2      0x04    /* Channel Option Register 2               */
-#define CD180_COR3      0x05    /* Channel Option Register 3               */
-#define CD180_CCSR      0x06    /* Channel Control Status Register         */
-#define CD180_RTPR      0x18    /* Receive Timeout Period Register         */
-#define CD180_RBPRH     0x31    /* Receive Bit Rate Period Register High  */
-#define CD180_RBPRL     0x32    /* Receive Bit Rate Period Register Low   */
-#define CD180_TBPRH     0x39    /* Transmit Bit Rate Period Register High */
-#define CD180_TBPRL     0x3a    /* Transmit Bit Rate Period Register Low  */
-#define CD180_SCHR1     0x09    /* Special Character Register 1            */
-#define CD180_SCHR2     0x0a    /* Special Character Register 2            */
-#define CD180_SCHR3     0x0b    /* Special Character Register 3            */
-#define CD180_SCHR4     0x0c    /* Special Character Register 4            */
-#define CD180_MCR       0x12    /* Modem Change Register                   */
-#define CD180_MCOR1     0x10    /* Modem Change Option 1 Register          */
-#define CD180_MCOR2     0x11    /* Modem Change Option 2 Register          */
-#define CD180_MSVR      0x28    /* Modem Signal Value Register             */
-#define CD180_MSVRTS    0x29    /* Modem Signal Value RTS                  */
-#define CD180_MSVDTR    0x2a    /* Modem Signal Value DTR                  */
-
-/* Global Interrupt Vector Register (R/W) */
-
-#define GSVR_ITMASK     0x07     /* Interrupt type mask                     */
-#define  GSVR_IT_MDM     0x01    /* Modem Signal Change Interrupt           */
-#define  GSVR_IT_TX      0x02    /* Transmit Data Interrupt                 */
-#define  GSVR_IT_RGD     0x03    /* Receive Good Data Interrupt             */
-#define  GSVR_IT_REXC    0x07    /* Receive Exception Interrupt             */
-
-
-/* Global Interrupt Channel Register (R/W) */
- 
-#define GSCR_CHAN       0x1c    /* Channel Number Mask                     */
-#define GSCR_CHAN_OFF   2       /* Channel Number Offset                   */
-
-
-/* Channel Address Register (R/W) */
-
-#define CAR_CHAN        0x07    /* Channel Number Mask                     */
-
-
-/* Receive Character Status Register (R/O) */
-
-#define RCSR_TOUT       0x80    /* Rx Timeout                              */
-#define RCSR_SCDET      0x70    /* Special Character Detected Mask         */
-#define  RCSR_NO_SC      0x00   /* No Special Characters Detected          */
-#define  RCSR_SC_1       0x10   /* Special Char 1 (or 1 & 3) Detected      */
-#define  RCSR_SC_2       0x20   /* Special Char 2 (or 2 & 4) Detected      */
-#define  RCSR_SC_3       0x30   /* Special Char 3 Detected                 */
-#define  RCSR_SC_4       0x40   /* Special Char 4 Detected                 */
-#define RCSR_BREAK      0x08    /* Break has been detected                 */
-#define RCSR_PE         0x04    /* Parity Error                            */
-#define RCSR_FE         0x02    /* Frame Error                             */
-#define RCSR_OE         0x01    /* Overrun Error                           */
-
-
-/* Channel Command Register (R/W) (commands in groups can be OR-ed) */
-
-#define CCR_HARDRESET   0x81    /* Reset the chip                          */
-
-#define CCR_SOFTRESET   0x80    /* Soft Channel Reset                      */
-
-#define CCR_CORCHG1     0x42    /* Channel Option Register 1 Changed       */
-#define CCR_CORCHG2     0x44    /* Channel Option Register 2 Changed       */
-#define CCR_CORCHG3     0x48    /* Channel Option Register 3 Changed       */
-
-#define CCR_SSCH1       0x21    /* Send Special Character 1                */
-
-#define CCR_SSCH2       0x22    /* Send Special Character 2                */
-
-#define CCR_SSCH3       0x23    /* Send Special Character 3                */
-
-#define CCR_SSCH4       0x24    /* Send Special Character 4                */
-
-#define CCR_TXEN        0x18    /* Enable Transmitter                      */
-#define CCR_RXEN        0x12    /* Enable Receiver                         */
-
-#define CCR_TXDIS       0x14    /* Disable Transmitter                     */
-#define CCR_RXDIS       0x11    /* Disable Receiver                        */
-
-
-/* Service Request Enable Register (R/W) */
-
-#define SRER_DSR         0x80    /* Enable interrupt on DSR change          */
-#define SRER_CD          0x40    /* Enable interrupt on CD change           */
-#define SRER_CTS         0x20    /* Enable interrupt on CTS change          */
-#define SRER_RXD         0x10    /* Enable interrupt on Receive Data        */
-#define SRER_RXSC        0x08    /* Enable interrupt on Receive Spec. Char  */
-#define SRER_TXRDY       0x04    /* Enable interrupt on TX FIFO empty       */
-#define SRER_TXEMPTY     0x02    /* Enable interrupt on TX completely empty */
-#define SRER_RET         0x01    /* Enable interrupt on RX Exc. Timeout     */
-
-
-/* Channel Option Register 1 (R/W) */
-
-#define COR1_ODDP       0x80    /* Odd Parity                              */
-#define COR1_PARMODE    0x60    /* Parity Mode mask                        */
-#define  COR1_NOPAR      0x00   /* No Parity                               */
-#define  COR1_FORCEPAR   0x20   /* Force Parity                            */
-#define  COR1_NORMPAR    0x40   /* Normal Parity                           */
-#define COR1_IGNORE     0x10    /* Ignore Parity on RX                     */
-#define COR1_STOPBITS   0x0c    /* Number of Stop Bits                     */
-#define  COR1_1SB        0x00   /* 1 Stop Bit                              */
-#define  COR1_15SB       0x04   /* 1.5 Stop Bits                           */
-#define  COR1_2SB        0x08   /* 2 Stop Bits                             */
-#define COR1_CHARLEN    0x03    /* Character Length                        */
-#define  COR1_5BITS      0x00   /* 5 bits                                  */
-#define  COR1_6BITS      0x01   /* 6 bits                                  */
-#define  COR1_7BITS      0x02   /* 7 bits                                  */
-#define  COR1_8BITS      0x03   /* 8 bits                                  */
-
-
-/* Channel Option Register 2 (R/W) */
-
-#define COR2_IXM        0x80    /* Implied XON mode                        */
-#define COR2_TXIBE      0x40    /* Enable In-Band (XON/XOFF) Flow Control  */
-#define COR2_ETC        0x20    /* Embedded Tx Commands Enable             */
-#define COR2_LLM        0x10    /* Local Loopback Mode                     */
-#define COR2_RLM        0x08    /* Remote Loopback Mode                    */
-#define COR2_RTSAO      0x04    /* RTS Automatic Output Enable             */
-#define COR2_CTSAE      0x02    /* CTS Automatic Enable                    */
-#define COR2_DSRAE      0x01    /* DSR Automatic Enable                    */
-
-
-/* Channel Option Register 3 (R/W) */
-
-#define COR3_XONCH      0x80    /* XON is a pair of characters (1 & 3)     */
-#define COR3_XOFFCH     0x40    /* XOFF is a pair of characters (2 & 4)    */
-#define COR3_FCT        0x20    /* Flow-Control Transparency Mode          */
-#define COR3_SCDE       0x10    /* Special Character Detection Enable      */
-#define COR3_RXTH       0x0f    /* RX FIFO Threshold value (1-8)           */
-
-
-/* Channel Control Status Register (R/O) */
-
-#define CCSR_RXEN       0x80    /* Receiver Enabled                        */
-#define CCSR_RXFLOFF    0x40    /* Receive Flow Off (XOFF was sent)        */
-#define CCSR_RXFLON     0x20    /* Receive Flow On (XON was sent)          */
-#define CCSR_TXEN       0x08    /* Transmitter Enabled                     */
-#define CCSR_TXFLOFF    0x04    /* Transmit Flow Off (got XOFF)            */
-#define CCSR_TXFLON     0x02    /* Transmit Flow On (got XON)              */
-
-
-/* Modem Change Option Register 1 (R/W) */
-
-#define MCOR1_DSRZD     0x80    /* Detect 0->1 transition of DSR           */
-#define MCOR1_CDZD      0x40    /* Detect 0->1 transition of CD            */
-#define MCOR1_CTSZD     0x20    /* Detect 0->1 transition of CTS           */
-#define MCOR1_DTRTH     0x0f    /* Auto DTR flow control Threshold (1-8)   */
-#define  MCOR1_NODTRFC   0x0     /* Automatic DTR flow control disabled     */
-
-
-/* Modem Change Option Register 2 (R/W) */
-
-#define MCOR2_DSROD     0x80    /* Detect 1->0 transition of DSR           */
-#define MCOR2_CDOD      0x40    /* Detect 1->0 transition of CD            */
-#define MCOR2_CTSOD     0x20    /* Detect 1->0 transition of CTS           */
-
-
-/* Modem Change Register (R/W) */
-
-#define MCR_DSRCHG      0x80    /* DSR Changed                             */
-#define MCR_CDCHG       0x40    /* CD Changed                              */
-#define MCR_CTSCHG      0x20    /* CTS Changed                             */
-
-
-/* Modem Signal Value Register (R/W) */
-
-#define MSVR_DSR        0x80    /* Current state of DSR input              */
-#define MSVR_CD         0x40    /* Current state of CD input               */
-#define MSVR_CTS        0x20    /* Current state of CTS input              */
-#define MSVR_DTR        0x02    /* Current state of DTR output             */
-#define MSVR_RTS        0x01    /* Current state of RTS output             */
-
-
-/* Service Request Status Register */
-
-#define SRSR_CMASK	0xC0	/* Current Service Context Mask            */
-#define  SRSR_CNONE	0x00	/* Not in a service context		   */
-#define  SRSR_CRX	0x40	/* Rx Context				   */
-#define  SRSR_CTX	0x80	/* Tx Context				   */
-#define  SRSR_CMDM	0xC0	/* Modem Context			   */
-#define SRSR_ANYINT	0x6F	/* Any interrupt flag			   */
-#define SRSR_RINT	0x10	/* Receive Interrupt			   */
-#define SRSR_TINT	0x04	/* Transmit Interrupt			   */
-#define SRSR_MINT	0x01	/* Modem Interrupt			   */
-#define SRSR_REXT	0x20	/* Receive External Interrupt		   */
-#define SRSR_TEXT	0x08	/* Transmit External Interrupt		   */
-#define SRSR_MEXT	0x02	/* Modem External Interrupt		   */
-
-
-/* Service Request Configuration Register */
-
-#define SRCR_PKGTYPE    0x80
-#define SRCR_REGACKEN   0x40
-#define SRCR_DAISYEN    0x20
-#define SRCR_GLOBPRI    0x10
-#define SRCR_UNFAIR     0x08
-#define SRCR_AUTOPRI    0x02
-#define SRCR_PRISEL     0x01
-
-/* Values for register-based Interrupt ACKs */
-#define CD180_ACK_MINT	0x75	/* goes to MSMR				   */
-#define CD180_ACK_TINT	0x76	/* goes to TSMR				   */
-#define CD180_ACK_RINT	0x77	/* goes to RSMR				   */
-
-/* Escape characters */
-
-#define CD180_C_ESC     0x00    /* Escape character                        */
-#define CD180_C_SBRK    0x81    /* Start sending BREAK                     */
-#define CD180_C_DELAY   0x82    /* Delay output                            */
-#define CD180_C_EBRK    0x83    /* Stop sending BREAK                      */
--- linux-2.6.20-rc2-mm1/drivers/sbus/char/aurora.c	2006-11-29 22:57:37.000000000 +0100
+++ /dev/null	2006-09-19 00:45:31.000000000 +0200
@@ -1,2364 +0,0 @@
-/*	$Id: aurora.c,v 1.19 2002/01/08 16:00:16 davem Exp $
- *	linux/drivers/sbus/char/aurora.c -- Aurora multiport driver
- *
- *	Copyright (c) 1999 by Oliver Aldulea (oli at bv dot ro)
- *
- *	This code is based on the RISCom/8 multiport serial driver written
- *	by Dmitry Gorodchanin (pgmdsg@ibi.com), based on the Linux serial
- *	driver, written by Linus Torvalds, Theodore T'so and others.
- *	The Aurora multiport programming info was obtained mainly from the
- *	Cirrus Logic CD180 documentation (available on the web), and by
- *	doing heavy tests on the board. Many thanks to Eddie C. Dost for the
- *	help on the sbus interface.
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
- *	This program is distributed in the hope that it will be useful,
- *	but WITHOUT ANY WARRANTY; without even the implied warranty of
- *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *	GNU General Public License for more details.
- *
- *	You should have received a copy of the GNU General Public License
- *	along with this program; if not, write to the Free Software
- *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	Revision 1.0
- *
- *	This is the first public release.
- *
- *	Most of the information you need is in the aurora.h file. Please
- *	read that file before reading this one.
- *
- *	Several parts of the code do not have comments yet.
- * 
- * n.b.  The board can support 115.2 bit rates, but only on a few
- * ports. The total badwidth of one chip (ports 0-7 or 8-15) is equal
- * to OSC_FREQ div 16. In case of my board, each chip can take 6
- * channels of 115.2 kbaud.  This information is not well-tested.
- * 
- * Fixed to use tty_get_baud_rate().
- *   Theodore Ts'o <tytso@mit.edu>, 2001-Oct-12
- */
-
-#include <linux/module.h>
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#ifdef AURORA_INT_DEBUG
-#include <linux/timer.h>
-#endif
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/oplib.h>
-#include <asm/system.h>
-#include <asm/kdebug.h>
-#include <asm/sbus.h>
-#include <asm/uaccess.h>
-
-#include "aurora.h"
-#include "cd180.h"
-
-unsigned char irqs[4] = {
-	0, 0, 0, 0
-};
-
-#ifdef AURORA_INT_DEBUG
-int irqhit=0;
-#endif
-
-static struct tty_driver *aurora_driver;
-static struct Aurora_board aurora_board[AURORA_NBOARD] = {
-	{0,},
-};
-
-static struct Aurora_port aurora_port[AURORA_TNPORTS] =  {
-	{ 0, },
-};
-
-/* no longer used. static struct Aurora_board * IRQ_to_board[16] = { NULL, } ;*/
-static unsigned char * tmp_buf = NULL;
-
-DECLARE_TASK_QUEUE(tq_aurora);
-
-static inline int aurora_paranoia_check(struct Aurora_port const * port,
-				    char *name, const char *routine)
-{
-#ifdef AURORA_PARANOIA_CHECK
-	static const char *badmagic =
-		KERN_DEBUG "aurora: Warning: bad aurora port magic number for device %s in %s\n";
-	static const char *badinfo =
-		KERN_DEBUG "aurora: Warning: null aurora port for device %s in %s\n";
-
-	if (!port) {
-		printk(badinfo, name, routine);
-		return 1;
-	}
-	if (port->magic != AURORA_MAGIC) {
-		printk(badmagic, name, routine);
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-/*
- * 
- *  Service functions for aurora driver.
- * 
- */
-
-/* Get board number from pointer */
-static inline int board_No (struct Aurora_board const * bp)
-{
-	return bp - aurora_board;
-}
-
-/* Get port number from pointer */
-static inline int port_No (struct Aurora_port const * port)
-{
-	return AURORA_PORT(port - aurora_port); 
-}
-
-/* Get pointer to board from pointer to port */
-static inline struct Aurora_board * port_Board(struct Aurora_port const * port)
-{
-	return &aurora_board[AURORA_BOARD(port - aurora_port)];
-}
-
-/* Wait for Channel Command Register ready */
-static inline void aurora_wait_CCR(struct aurora_reg128 * r)
-{
-	unsigned long delay;
-
-#ifdef AURORA_DEBUG
-printk("aurora_wait_CCR\n");
-#endif
-	/* FIXME: need something more descriptive than 100000 :) */
-	for (delay = 100000; delay; delay--) 
-		if (!sbus_readb(&r->r[CD180_CCR]))
-			return;
-	printk(KERN_DEBUG "aurora: Timeout waiting for CCR.\n");
-}
-
-/*
- *  aurora probe functions.
- */
-
-/* Must be called with enabled interrupts */
-static inline void aurora_long_delay(unsigned long delay)
-{
-	unsigned long i;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_long_delay: start\n");
-#endif
-	for (i = jiffies + delay; time_before(jiffies, i); ) ;
-#ifdef AURORA_DEBUG
-	printk("aurora_long_delay: end\n");
-#endif
-}
-
-/* Reset and setup CD180 chip */
-static int aurora_init_CD180(struct Aurora_board * bp, int chip)
-{
-	unsigned long flags;
-	int id;
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_init_CD180: start %d:%d\n",
-	       board_No(bp), chip);
-#endif
-	save_flags(flags); cli();
-	sbus_writeb(0, &bp->r[chip]->r[CD180_CAR]);
-	sbus_writeb(0, &bp->r[chip]->r[CD180_GSVR]);
-
-	/* Wait for CCR ready        */
-	aurora_wait_CCR(bp->r[chip]);
-
-	/* Reset CD180 chip          */
-	sbus_writeb(CCR_HARDRESET, &bp->r[chip]->r[CD180_CCR]);
-	udelay(1);
-	sti();
-	id=1000;
-	while((--id) &&
-	      (sbus_readb(&bp->r[chip]->r[CD180_GSVR])!=0xff))udelay(100);
-	if(!id) {
-		printk(KERN_ERR "aurora%d: Chip %d failed init.\n",
-		       board_No(bp), chip);
-		restore_flags(flags);
-		return(-1);
-	}
-	cli();
-	sbus_writeb((board_No(bp)<<5)|((chip+1)<<3),
-		    &bp->r[chip]->r[CD180_GSVR]); /* Set ID for this chip      */
-	sbus_writeb(0x80|bp->ACK_MINT,
-		    &bp->r[chip]->r[CD180_MSMR]); /* Prio for modem intr       */
-	sbus_writeb(0x80|bp->ACK_TINT,
-		    &bp->r[chip]->r[CD180_TSMR]); /* Prio for transmitter intr */
-	sbus_writeb(0x80|bp->ACK_RINT,
-		    &bp->r[chip]->r[CD180_RSMR]); /* Prio for receiver intr    */
-	/* Setting up prescaler. We need 4 tick per 1 ms */
-	sbus_writeb((bp->oscfreq/(1000000/AURORA_TPS)) >> 8,
-		    &bp->r[chip]->r[CD180_PPRH]);
-	sbus_writeb((bp->oscfreq/(1000000/AURORA_TPS)) & 0xff,
-		    &bp->r[chip]->r[CD180_PPRL]);
-
-	sbus_writeb(SRCR_AUTOPRI|SRCR_GLOBPRI,
-		    &bp->r[chip]->r[CD180_SRCR]);
-
-	id = sbus_readb(&bp->r[chip]->r[CD180_GFRCR]);
-	printk(KERN_INFO "aurora%d: Chip %d id %02x: ",
-	       board_No(bp), chip,id);
-	if(sbus_readb(&bp->r[chip]->r[CD180_SRCR]) & 128) {
-		switch (id) {
-			case 0x82:printk("CL-CD1864 rev A\n");break;
-			case 0x83:printk("CL-CD1865 rev A\n");break;
-			case 0x84:printk("CL-CD1865 rev B\n");break;
-			case 0x85:printk("CL-CD1865 rev C\n");break;
-			default:printk("Unknown.\n");
-		};
-	} else {
-		switch (id) {
-			case 0x81:printk("CL-CD180 rev B\n");break;
-			case 0x82:printk("CL-CD180 rev C\n");break;
-			default:printk("Unknown.\n");
-		};
-	}
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_init_CD180: end\n");
-#endif
-	return 0;
-}
-
-static int valid_irq(unsigned char irq)
-{
-int i;
-for(i=0;i<TYPE_1_IRQS;i++)
-	if (type_1_irq[i]==irq) return 1;
-return 0;
-}
-
-static irqreturn_t aurora_interrupt(int irq, void * dev_id);
-
-/* Main probing routine, also sets irq. */
-static int aurora_probe(void)
-{
-	struct sbus_bus *sbus;
-	struct sbus_dev *sdev;
-	int grrr;
-	char buf[30];
-	int bn = 0;
-	struct Aurora_board *bp;
-
-	for_each_sbus(sbus) {
-		for_each_sbusdev(sdev, sbus) {
-/*			printk("Try: %x %s\n",sdev,sdev->prom_name);*/
-			if (!strcmp(sdev->prom_name, "sio16")) {
-#ifdef AURORA_DEBUG
-				printk(KERN_INFO "aurora: sio16 at %p\n",sdev);
-#endif
-				if((sdev->reg_addrs[0].reg_size!=1) &&
-				   (sdev->reg_addrs[1].reg_size!=128) &&
-				   (sdev->reg_addrs[2].reg_size!=128) &&
-				   (sdev->reg_addrs[3].reg_size!=4)) {
-				   	printk(KERN_ERR "aurora%d: registers' sizes "
-					       "do not match.\n", bn);
-				   	break;
-				}
-				bp = &aurora_board[bn];
-				bp->r0 = (struct aurora_reg1 *)
-					sbus_ioremap(&sdev->resource[0], 0,
-						     sdev->reg_addrs[0].reg_size,
-						     "sio16");
-				if (bp->r0 == NULL) {
-					printk(KERN_ERR "aurora%d: can't map "
-					       "reg_addrs[0]\n", bn);
-					break;
-				}
-#ifdef AURORA_DEBUG
-				printk("Map reg 0: %p\n", bp->r0);
-#endif
-				bp->r[0] = (struct aurora_reg128 *)
-					sbus_ioremap(&sdev->resource[1], 0,
-						     sdev->reg_addrs[1].reg_size,
-						     "sio16");
-				if (bp->r[0] == NULL) {
-					printk(KERN_ERR "aurora%d: can't map "
-					       "reg_addrs[1]\n", bn);
-					break;
-				}
-#ifdef AURORA_DEBUG
-				printk("Map reg 1: %p\n", bp->r[0]);
-#endif
-				bp->r[1] = (struct aurora_reg128 *)
-					sbus_ioremap(&sdev->resource[2], 0,
-						     sdev->reg_addrs[2].reg_size,
-						     "sio16");
-				if (bp->r[1] == NULL) {
-					printk(KERN_ERR "aurora%d: can't map "
-					       "reg_addrs[2]\n", bn);
-					break;
-				}
-#ifdef AURORA_DEBUG
-				printk("Map reg 2: %p\n", bp->r[1]);
-#endif
-				bp->r3 = (struct aurora_reg4 *)
-					sbus_ioremap(&sdev->resource[3], 0,
-						     sdev->reg_addrs[3].reg_size,
-						     "sio16");
-				if (bp->r3 == NULL) {
-					printk(KERN_ERR "aurora%d: can't map "
-					       "reg_addrs[3]\n", bn);
-					break;
-				}
-#ifdef AURORA_DEBUG
-				printk("Map reg 3: %p\n", bp->r3);
-#endif
-				/* Variables setup */
-				bp->flags = 0;
-#ifdef AURORA_DEBUG
-				grrr=prom_getint(sdev->prom_node,"intr");
-				printk("intr pri %d\n", grrr);
-#endif
-				if ((bp->irq=irqs[bn]) && valid_irq(bp->irq) &&
-				    !request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
-					free_irq(bp->irq|0x30, bp);
-				} else
-				if ((bp->irq=prom_getint(sdev->prom_node, "bintr")) && valid_irq(bp->irq) &&
-				    !request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
-					free_irq(bp->irq|0x30, bp);
-				} else
-				if ((bp->irq=prom_getint(sdev->prom_node, "intr")) && valid_irq(bp->irq) &&
-				    !request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
-					free_irq(bp->irq|0x30, bp);
-				} else
-				for(grrr=0;grrr<TYPE_1_IRQS;grrr++) {
-					if ((bp->irq=type_1_irq[grrr])&&!request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
-						free_irq(bp->irq|0x30, bp);
-						break;
-					} else {
-					printk(KERN_ERR "aurora%d: Could not get an irq for this board !!!\n",bn);
-					bp->flags=0xff;
-					}
-				}
-				if(bp->flags==0xff)break;
-				printk(KERN_INFO "aurora%d: irq %d\n",bn,bp->irq&0x0f);
-				buf[0]=0;
-				grrr=prom_getproperty(sdev->prom_node,"dtr_rts",buf,sizeof(buf));
-				if(!strcmp(buf,"swapped")){
-					printk(KERN_INFO "aurora%d: Swapped DTR and RTS\n",bn);
-					bp->DTR=MSVR_RTS;
-					bp->RTS=MSVR_DTR;
-					bp->MSVDTR=CD180_MSVRTS;
-					bp->MSVRTS=CD180_MSVDTR;
-					bp->flags|=AURORA_BOARD_DTR_FLOW_OK;
-					}else{
-					#ifdef AURORA_FORCE_DTR_FLOW
-					printk(KERN_INFO "aurora%d: Forcing swapped DTR-RTS\n",bn);
-					bp->DTR=MSVR_RTS;
-					bp->RTS=MSVR_DTR;
-					bp->MSVDTR=CD180_MSVRTS;
-					bp->MSVRTS=CD180_MSVDTR;
-					bp->flags|=AURORA_BOARD_DTR_FLOW_OK;
-					#else
-					printk(KERN_INFO "aurora%d: Normal DTR and RTS\n",bn);
-					bp->DTR=MSVR_DTR;
-					bp->RTS=MSVR_RTS;
-					bp->MSVDTR=CD180_MSVDTR;
-					bp->MSVRTS=CD180_MSVRTS;
-					#endif
-				}
-				bp->oscfreq=prom_getint(sdev->prom_node,"clk")*100;
-				printk(KERN_INFO "aurora%d: Oscillator: %d Hz\n",bn,bp->oscfreq);
-				grrr=prom_getproperty(sdev->prom_node,"chip",buf,sizeof(buf));
-				printk(KERN_INFO "aurora%d: Chips: %s\n",bn,buf);
-				grrr=prom_getproperty(sdev->prom_node,"manu",buf,sizeof(buf));
-				printk(KERN_INFO "aurora%d: Manufacturer: %s\n",bn,buf);
-				grrr=prom_getproperty(sdev->prom_node,"model",buf,sizeof(buf));
-				printk(KERN_INFO "aurora%d: Model: %s\n",bn,buf);
-				grrr=prom_getproperty(sdev->prom_node,"rev",buf,sizeof(buf));
-				printk(KERN_INFO "aurora%d: Revision: %s\n",bn,buf);
-				grrr=prom_getproperty(sdev->prom_node,"mode",buf,sizeof(buf));
-				printk(KERN_INFO "aurora%d: Mode: %s\n",bn,buf);
-				#ifdef MODULE
-				bp->count=0;
-				#endif
-				bp->flags = AURORA_BOARD_PRESENT;
-				/* hardware ack */
-				bp->ACK_MINT=1;
-				bp->ACK_TINT=2;
-				bp->ACK_RINT=3;
-				bn++;
-			}
-		}
-	}
-	return bn;
-}
-
-static void aurora_release_io_range(struct Aurora_board *bp)
-{
-	sbus_iounmap((unsigned long)bp->r0, 1);
-	sbus_iounmap((unsigned long)bp->r[0], 128);
-	sbus_iounmap((unsigned long)bp->r[1], 128);
-	sbus_iounmap((unsigned long)bp->r3, 4);
-}
-
-static inline void aurora_mark_event(struct Aurora_port * port, int event)
-{
-#ifdef AURORA_DEBUG
-	printk("aurora_mark_event: start\n");
-#endif
-	set_bit(event, &port->event);
-	queue_task(&port->tqueue, &tq_aurora);
-	mark_bh(AURORA_BH);
-#ifdef AURORA_DEBUG
-	printk("aurora_mark_event: end\n");
-#endif
-}
-
-static __inline__ struct Aurora_port * aurora_get_port(struct Aurora_board const * bp,
-						       int chip,
-						       unsigned char const *what)
-{
-	unsigned char channel;
-	struct Aurora_port * port;
-
-	channel = ((chip << 3) |
-		   ((sbus_readb(&bp->r[chip]->r[CD180_GSCR]) & GSCR_CHAN) >> GSCR_CHAN_OFF));
-	port = &aurora_port[board_No(bp) * AURORA_NPORT * AURORA_NCD180 + channel];
-	if (port->flags & ASYNC_INITIALIZED)
-		return port;
-
-	printk(KERN_DEBUG "aurora%d: %s interrupt from invalid port %d\n",
-	       board_No(bp), what, channel);
-	return NULL;
-}
-
-static void aurora_receive_exc(struct Aurora_board const * bp, int chip)
-{
-	struct Aurora_port *port;
-	struct tty_struct *tty;
-	unsigned char status;
-	unsigned char ch;
-	
-	if (!(port = aurora_get_port(bp, chip, "Receive_x")))
-		return;
-
-	tty = port->tty;
-	if (tty->flip.count >= TTY_FLIPBUF_SIZE)  {
-#ifdef AURORA_INTNORM
-		printk("aurora%d: port %d: Working around flip buffer overflow.\n",
-		       board_No(bp), port_No(port));
-#endif
-		return;
-	}
-	
-#ifdef AURORA_REPORT_OVERRUN	
-	status = sbus_readb(&bp->r[chip]->r[CD180_RCSR]);
-	if (status & RCSR_OE)  {
-		port->overrun++;
-#if 1
-		printk("aurora%d: port %d: Overrun. Total %ld overruns.\n",
-		       board_No(bp), port_No(port), port->overrun);
-#endif		
-	}
-	status &= port->mark_mask;
-#else	
-	status = sbus_readb(&bp->r[chip]->r[CD180_RCSR]) & port->mark_mask;
-#endif	
-	ch = sbus_readb(&bp->r[chip]->r[CD180_RDR]);
-	if (!status)
-		return;
-
-	if (status & RCSR_TOUT)  {
-/*		printk("aurora%d: port %d: Receiver timeout. Hardware problems ?\n",
-		       board_No(bp), port_No(port));*/
-		return;
-		
-	} else if (status & RCSR_BREAK)  {
-		printk(KERN_DEBUG "aurora%d: port %d: Handling break...\n",
-		       board_No(bp), port_No(port));
-		*tty->flip.flag_buf_ptr++ = TTY_BREAK;
-		if (port->flags & ASYNC_SAK)
-			do_SAK(tty);
-		
-	} else if (status & RCSR_PE) 
-		*tty->flip.flag_buf_ptr++ = TTY_PARITY;
-	
-	else if (status & RCSR_FE) 
-		*tty->flip.flag_buf_ptr++ = TTY_FRAME;
-	
-        else if (status & RCSR_OE)
-		*tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
-	
-	else
-		*tty->flip.flag_buf_ptr++ = 0;
-	
-	*tty->flip.char_buf_ptr++ = ch;
-	tty->flip.count++;
-	queue_task(&tty->flip.tqueue, &tq_timer);
-}
-
-static void aurora_receive(struct Aurora_board const * bp, int chip)
-{
-	struct Aurora_port *port;
-	struct tty_struct *tty;
-	unsigned char count,cnt;
-
-	if (!(port = aurora_get_port(bp, chip, "Receive")))
-		return;
-	
-	tty = port->tty;
-	
-	count = sbus_readb(&bp->r[chip]->r[CD180_RDCR]);
-
-#ifdef AURORA_REPORT_FIFO
-	port->hits[count > 8 ? 9 : count]++;
-#endif
-
-	while (count--)  {
-		if (tty->flip.count >= TTY_FLIPBUF_SIZE)  {
-#ifdef AURORA_INTNORM
-			printk("aurora%d: port %d: Working around flip buffer overflow.\n",
-			       board_No(bp), port_No(port));
-#endif
-			break;
-		}
-		cnt = sbus_readb(&bp->r[chip]->r[CD180_RDR]);
-		*tty->flip.char_buf_ptr++ = cnt;
-		*tty->flip.flag_buf_ptr++ = 0;
-		tty->flip.count++;
-	}
-	queue_task(&tty->flip.tqueue, &tq_timer);
-}
-
-static void aurora_transmit(struct Aurora_board const * bp, int chip)
-{
-	struct Aurora_port *port;
-	struct tty_struct *tty;
-	unsigned char count;
-	
-	if (!(port = aurora_get_port(bp, chip, "Transmit")))
-		return;
-		
-	tty = port->tty;
-	
-	if (port->SRER & SRER_TXEMPTY)  {
-		/* FIFO drained */
-		sbus_writeb(port_No(port) & 7,
-			    &bp->r[chip]->r[CD180_CAR]);
-		udelay(1);
-		port->SRER &= ~SRER_TXEMPTY;
-		sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-		return;
-	}
-	
-	if ((port->xmit_cnt <= 0 && !port->break_length)
-	    || tty->stopped || tty->hw_stopped)  {
-		sbus_writeb(port_No(port) & 7,
-			    &bp->r[chip]->r[CD180_CAR]);
-		udelay(1);
-		port->SRER &= ~SRER_TXRDY;
-		sbus_writeb(port->SRER,
-			    &bp->r[chip]->r[CD180_SRER]);
-		return;
-	}
-	
-	if (port->break_length)  {
-		if (port->break_length > 0)  {
-			if (port->COR2 & COR2_ETC)  {
-				sbus_writeb(CD180_C_ESC,
-					    &bp->r[chip]->r[CD180_TDR]);
-				sbus_writeb(CD180_C_SBRK,
-					    &bp->r[chip]->r[CD180_TDR]);
-				port->COR2 &= ~COR2_ETC;
-			}
-			count = min(port->break_length, 0xff);
-			sbus_writeb(CD180_C_ESC,
-				    &bp->r[chip]->r[CD180_TDR]);
-			sbus_writeb(CD180_C_DELAY,
-				    &bp->r[chip]->r[CD180_TDR]);
-			sbus_writeb(count,
-				    &bp->r[chip]->r[CD180_TDR]);
-			if (!(port->break_length -= count))
-				port->break_length--;
-		} else  {
-			sbus_writeb(CD180_C_ESC,
-				    &bp->r[chip]->r[CD180_TDR]);
-			sbus_writeb(CD180_C_EBRK,
-				    &bp->r[chip]->r[CD180_TDR]);
-			sbus_writeb(port->COR2,
-				    &bp->r[chip]->r[CD180_COR2]);
-			aurora_wait_CCR(bp->r[chip]);
-			sbus_writeb(CCR_CORCHG2,
-				    &bp->r[chip]->r[CD180_CCR]);
-			port->break_length = 0;
-		}
-		return;
-	}
-	
-	count = CD180_NFIFO;
-	do {
-		u8 byte = port->xmit_buf[port->xmit_tail++];
-
-		sbus_writeb(byte, &bp->r[chip]->r[CD180_TDR]);
-		port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
-		if (--port->xmit_cnt <= 0)
-			break;
-	} while (--count > 0);
-	
-	if (port->xmit_cnt <= 0)  {
-		sbus_writeb(port_No(port) & 7,
-			    &bp->r[chip]->r[CD180_CAR]);
-		udelay(1);
-		port->SRER &= ~SRER_TXRDY;
-		sbus_writeb(port->SRER,
-			    &bp->r[chip]->r[CD180_SRER]);
-	}
-	if (port->xmit_cnt <= port->wakeup_chars)
-		aurora_mark_event(port, RS_EVENT_WRITE_WAKEUP);
-}
-
-static void aurora_check_modem(struct Aurora_board const * bp, int chip)
-{
-	struct Aurora_port *port;
-	struct tty_struct *tty;
-	unsigned char mcr;
-	
-	if (!(port = aurora_get_port(bp, chip, "Modem")))
-		return;
-		
-	tty = port->tty;
-	
-	mcr = sbus_readb(&bp->r[chip]->r[CD180_MCR]);
-	if (mcr & MCR_CDCHG)  {
-		if (sbus_readb(&bp->r[chip]->r[CD180_MSVR]) & MSVR_CD) 
-			wake_up_interruptible(&port->open_wait);
-		else
-			schedule_task(&port->tqueue_hangup);
-	}
-	
-/* We don't have such things yet. My aurora board has DTR and RTS swapped, but that doesn't count in this driver. Let's hope
- * Aurora didn't made any boards with CTS or DSR broken...
- */
-/* #ifdef AURORA_BRAIN_DAMAGED_CTS
-	if (mcr & MCR_CTSCHG)  {
-		if (aurora_in(bp, CD180_MSVR) & MSVR_CTS)  {
-			tty->hw_stopped = 0;
-			port->SRER |= SRER_TXRDY;
-			if (port->xmit_cnt <= port->wakeup_chars)
-				aurora_mark_event(port, RS_EVENT_WRITE_WAKEUP);
-		} else  {
-			tty->hw_stopped = 1;
-			port->SRER &= ~SRER_TXRDY;
-		}
-		sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-	}
-	if (mcr & MCR_DSRCHG)  {
-		if (aurora_in(bp, CD180_MSVR) & MSVR_DSR)  {
-			tty->hw_stopped = 0;
-			port->SRER |= SRER_TXRDY;
-			if (port->xmit_cnt <= port->wakeup_chars)
-				aurora_mark_event(port, RS_EVENT_WRITE_WAKEUP);
-		} else  {
-			tty->hw_stopped = 1;
-			port->SRER &= ~SRER_TXRDY;
-		}
-		sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-	}
-#endif AURORA_BRAIN_DAMAGED_CTS */
-	
-	/* Clear change bits */
-	sbus_writeb(0, &bp->r[chip]->r[CD180_MCR]);
-}
-
-/* The main interrupt processing routine */
-static irqreturn_t aurora_interrupt(int irq, void * dev_id)
-{
-	unsigned char status;
-	unsigned char ack,chip/*,chip_id*/;
-	struct Aurora_board * bp = (struct Aurora_board *) dev_id;
-	unsigned long loop = 0;
-
-#ifdef AURORA_INT_DEBUG
-	printk("IRQ%d %d\n",irq,++irqhit);
-#ifdef AURORA_FLOODPRO
-	if (irqhit>=AURORA_FLOODPRO)
-		sbus_writeb(8, &bp->r0->r);
-#endif
-#endif
-	
-/* old	bp = IRQ_to_board[irq&0x0f];*/
-	
-	if (!bp || !(bp->flags & AURORA_BOARD_ACTIVE))
-		return IRQ_NONE;
-
-/*	The while() below takes care of this.
-	status = sbus_readb(&bp->r[0]->r[CD180_SRSR]);
-#ifdef AURORA_INT_DEBUG
-	printk("mumu: %02x\n", status);
-#endif
-	if (!(status&SRSR_ANYINT))
-		return IRQ_NONE; * Nobody has anything to say, so exit *
-*/
-	while ((loop++ < 48) &&
-	       (status = sbus_readb(&bp->r[0]->r[CD180_SRSR]) & SRSR_ANYINT)){
-#ifdef AURORA_INT_DEBUG
-		printk("SRSR: %02x\n", status);
-#endif
-		if (status & SRSR_REXT) {
-			ack = sbus_readb(&bp->r3->r[bp->ACK_RINT]);
-#ifdef AURORA_INT_DEBUG
-			printk("R-ACK %02x\n", ack);
-#endif
-			if ((ack >> 5) == board_No(bp)) {
-				if ((chip=((ack>>3)&3)-1) < AURORA_NCD180) {
-					if ((ack&GSVR_ITMASK)==GSVR_IT_RGD) {
-						aurora_receive(bp,chip);
-						sbus_writeb(0,
-							 &bp->r[chip]->r[CD180_EOSRR]);
-					} else if ((ack & GSVR_ITMASK) == GSVR_IT_REXC) {
-						aurora_receive_exc(bp,chip);
-						sbus_writeb(0,
-							 &bp->r[chip]->r[CD180_EOSRR]);
-					}
-				}
-			}
-		} else if (status & SRSR_TEXT) {
-			ack = sbus_readb(&bp->r3->r[bp->ACK_TINT]);
-#ifdef AURORA_INT_DEBUG
-			printk("T-ACK %02x\n", ack);
-#endif
-			if ((ack >> 5) == board_No(bp)) {
-				if ((chip=((ack>>3)&3)-1) < AURORA_NCD180) {
-					if ((ack&GSVR_ITMASK)==GSVR_IT_TX) {
-						aurora_transmit(bp,chip);
-						sbus_writeb(0,
-							 &bp->r[chip]->r[CD180_EOSRR]);
-					}
-				}
-			}
-		} else if (status & SRSR_MEXT) {
-			ack = sbus_readb(&bp->r3->r[bp->ACK_MINT]);
-#ifdef AURORA_INT_DEBUG
-			printk("M-ACK %02x\n", ack);
-#endif
-			if ((ack >> 5) == board_No(bp)) {
-				if ((chip = ((ack>>3)&3)-1) < AURORA_NCD180) {
-					if ((ack&GSVR_ITMASK)==GSVR_IT_MDM) {
-						aurora_check_modem(bp,chip);
-						sbus_writeb(0,
-							 &bp->r[chip]->r[CD180_EOSRR]);
-					}
-				}
-			}
-		}
-	}
-/* I guess this faster code can be used with CD1865, using AUROPRI and GLOBPRI. */
-#if 0
-	while ((loop++ < 48)&&(status=bp->r[0]->r[CD180_SRSR]&SRSR_ANYINT)){
-#ifdef AURORA_INT_DEBUG
-		printk("SRSR: %02x\n",status);
-#endif
-		ack = sbus_readb(&bp->r3->r[0]);
-#ifdef AURORA_INT_DEBUG
-		printk("ACK: %02x\n",ack);
-#endif
-		if ((ack>>5)==board_No(bp)) {
-			if ((chip=((ack>>3)&3)-1) < AURORA_NCD180) {
-				ack&=GSVR_ITMASK;
-				if (ack==GSVR_IT_RGD) {
-					aurora_receive(bp,chip);
-					sbus_writeb(0,
-						    &bp->r[chip]->r[CD180_EOSRR]);
-				} else if (ack==GSVR_IT_REXC) {
-					aurora_receive_exc(bp,chip);
-					sbus_writeb(0,
-						    &bp->r[chip]->r[CD180_EOSRR]);
-				} else if (ack==GSVR_IT_TX) {
-					aurora_transmit(bp,chip);
-					sbus_writeb(0,
-						    &bp->r[chip]->r[CD180_EOSRR]);
-				} else if (ack==GSVR_IT_MDM) {
-					aurora_check_modem(bp,chip);
-					sbus_writeb(0,
-						    &bp->r[chip]->r[CD180_EOSRR]);
-				}
-			}
-		}
-	}
-#endif
-
-/* This is the old handling routine, used in riscom8 for only one CD180. I keep it here for reference. */
-#if 0
-	for(chip=0;chip<AURORA_NCD180;chip++){
-		chip_id=(board_No(bp)<<5)|((chip+1)<<3);
-		loop=0;
-		while ((loop++ < 1) &&
-		       ((status = sbus_readb(&bp->r[chip]->r[CD180_SRSR])) &
-			(SRSR_TEXT | SRSR_MEXT | SRSR_REXT))) {
-
-			if (status & SRSR_REXT) {
-				ack = sbus_readb(&bp->r3->r[bp->ACK_RINT]);
-				if (ack == (chip_id | GSVR_IT_RGD)) {
-#ifdef AURORA_INTMSG
-					printk("RX ACK\n");
-#endif
-					aurora_receive(bp,chip);
-				} else if (ack == (chip_id | GSVR_IT_REXC)) {
-#ifdef AURORA_INTMSG
-					printk("RXC ACK\n");
-#endif
-					aurora_receive_exc(bp,chip);
-				} else {
-#ifdef AURORA_INTNORM
-					printk("aurora%d-%d: Bad receive ack 0x%02x.\n",
-					       board_No(bp), chip, ack);
-#endif
-				}
-			} else if (status & SRSR_TEXT) {
-				ack = sbus_readb(&bp->r3->r[bp->ACK_TINT]);
-				if (ack == (chip_id | GSVR_IT_TX)){
-#ifdef AURORA_INTMSG
-					printk("TX ACK\n");
-#endif
-					aurora_transmit(bp,chip);
-				} else {
-#ifdef AURORA_INTNORM
-					printk("aurora%d-%d: Bad transmit ack 0x%02x.\n",
-					       board_No(bp), chip, ack);
-#endif
-				}
-			} else  if (status & SRSR_MEXT)  {
-				ack = sbus_readb(&bp->r3->r[bp->ACK_MINT]);
-				if (ack == (chip_id | GSVR_IT_MDM)){
-#ifdef AURORA_INTMSG
-					printk("MDM ACK\n");
-#endif
-					aurora_check_modem(bp,chip);
-				} else {
-#ifdef AURORA_INTNORM
-					printk("aurora%d-%d: Bad modem ack 0x%02x.\n",
-					       board_No(bp), chip, ack);
-#endif
-				}
-			}
-			sbus_writeb(0, &bp->r[chip]->r[CD180_EOSRR]);
-		}
-	}
-#endif
-
-	return IRQ_HANDLED;
-}
-
-#ifdef AURORA_INT_DEBUG
-static void aurora_timer (unsigned long ignored);
-
-static DEFINE_TIMER(aurora_poll_timer, aurora_timer, 0, 0);
-
-static void
-aurora_timer (unsigned long ignored)
-{
-	unsigned long flags;
-	int i;
-
-	save_flags(flags); cli();
-
-	printk("SRSR: %02x,%02x - ",
-	       sbus_readb(&aurora_board[0].r[0]->r[CD180_SRSR]),
-	       sbus_readb(&aurora_board[0].r[1]->r[CD180_SRSR]));
-	for (i = 0; i < 4; i++) {
-		udelay(1);
-		printk("%02x ",
-		       sbus_readb(&aurora_board[0].r3->r[i]));
-	}
-	printk("\n");
-
-	aurora_poll_timer.expires = jiffies + 300;
-	add_timer (&aurora_poll_timer);
-
-	restore_flags(flags);
-}
-#endif
-
-/*
- *  Routines for open & close processing.
- */
-
-/* Called with disabled interrupts */
-static int aurora_setup_board(struct Aurora_board * bp)
-{
-	int error;
-	
-#ifdef AURORA_ALLIRQ
-	int i;
-	for (i = 0; i < AURORA_ALLIRQ; i++) {
-		error = request_irq(allirq[i]|0x30, aurora_interrupt, IRQF_SHARED,
-				    "sio16", bp);
-		if (error)
-			printk(KERN_ERR "IRQ%d request error %d\n",
-			       allirq[i], error);
-	}
-#else
-	error = request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED,
-			    "sio16", bp);
-	if (error) {
-		printk(KERN_ERR "IRQ request error %d\n", error);
-		return error;
-	}
-#endif
-	/* Board reset */
-	sbus_writeb(0, &bp->r0->r);
-	udelay(1);
-	if (bp->flags & AURORA_BOARD_TYPE_2) {
-		/* unknown yet */
-	} else {
-		sbus_writeb((AURORA_CFG_ENABLE_IO | AURORA_CFG_ENABLE_IRQ |
-			     (((bp->irq)&0x0f)>>2)),
-			    &bp->r0->r);
-	}
-	udelay(10000);
-
-	if (aurora_init_CD180(bp,0))error=1;error=0;
-	if (aurora_init_CD180(bp,1))error++;
-	if (error == AURORA_NCD180) {
-		printk(KERN_ERR "Both chips failed initialisation.\n");
-		return -EIO;
-	}
-
-#ifdef AURORA_INT_DEBUG
-	aurora_poll_timer.expires= jiffies + 1;
-	add_timer(&aurora_poll_timer);
-#endif
-#ifdef AURORA_DEBUG
-	printk("aurora_setup_board: end\n");
-#endif
-	return 0;
-}
-
-/* Called with disabled interrupts */
-static void aurora_shutdown_board(struct Aurora_board *bp)
-{
-	int i;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_shutdown_board: start\n");
-#endif
-
-#ifdef AURORA_INT_DEBUG
-	del_timer(&aurora_poll_timer);
-#endif
-
-#ifdef AURORA_ALLIRQ
-	for(i=0;i<AURORA_ALLIRQ;i++){
-		free_irq(allirq[i]|0x30, bp);
-/*		IRQ_to_board[allirq[i]&0xf] = NULL;*/
-	}
-#else
-	free_irq(bp->irq|0x30, bp);
-/*	IRQ_to_board[bp->irq&0xf] = NULL;*/
-#endif	
-	/* Drop all DTR's */
-	for(i=0;i<16;i++){
-		sbus_writeb(i & 7, &bp->r[i>>3]->r[CD180_CAR]);
-		udelay(1);
-		sbus_writeb(0, &bp->r[i>>3]->r[CD180_MSVR]);
-		udelay(1);
-	}
-	/* Board shutdown */
-	sbus_writeb(0, &bp->r0->r);
-
-#ifdef AURORA_DEBUG
-	printk("aurora_shutdown_board: end\n");
-#endif
-}
-
-/* Setting up port characteristics. 
- * Must be called with disabled interrupts
- */
-static void aurora_change_speed(struct Aurora_board *bp, struct Aurora_port *port)
-{
-	struct tty_struct *tty;
-	unsigned long baud;
-	long tmp;
-	unsigned char cor1 = 0, cor3 = 0;
-	unsigned char mcor1 = 0, mcor2 = 0,chip;
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_change_speed: start\n");
-#endif
-	if (!(tty = port->tty) || !tty->termios)
-		return;
-		
-	chip = AURORA_CD180(port_No(port));
-
-	port->SRER  = 0;
-	port->COR2 = 0;
-	port->MSVR = MSVR_RTS|MSVR_DTR;
-	
-	baud = tty_get_baud_rate(tty);
-	
-	/* Select port on the board */
-	sbus_writeb(port_No(port) & 7,
-		    &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-	
-	if (!baud)  {
-		/* Drop DTR & exit */
-		port->MSVR &= ~(bp->DTR|bp->RTS);
-		sbus_writeb(port->MSVR,
-			    &bp->r[chip]->r[CD180_MSVR]);
-		return;
-	} else  {
-		/* Set DTR on */
-		port->MSVR |= bp->DTR;
-		sbus_writeb(port->MSVR,
-			    &bp->r[chip]->r[CD180_MSVR]);
-	}
-	
-	/* Now we must calculate some speed dependent things. */
-	
-	/* Set baud rate for port. */
-	tmp = (((bp->oscfreq + baud/2) / baud +
-		CD180_TPC/2) / CD180_TPC);
-
-/*	tmp = (bp->oscfreq/7)/baud;
-	if((tmp%10)>4)tmp=tmp/10+1;else tmp=tmp/10;*/
-/*	printk("Prescaler period: %d\n",tmp);*/
-
-	sbus_writeb((tmp >> 8) & 0xff,
-		    &bp->r[chip]->r[CD180_RBPRH]);
-	sbus_writeb((tmp >> 8) & 0xff,
-		    &bp->r[chip]->r[CD180_TBPRH]);
-	sbus_writeb(tmp & 0xff, &bp->r[chip]->r[CD180_RBPRL]);
-	sbus_writeb(tmp & 0xff, &bp->r[chip]->r[CD180_TBPRL]);
-	
-	baud = (baud + 5) / 10;   /* Estimated CPS */
-	
-	/* Two timer ticks seems enough to wakeup something like SLIP driver */
-	tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO;		
-	port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
-					      SERIAL_XMIT_SIZE - 1 : tmp);
-	
-	/* Receiver timeout will be transmission time for 1.5 chars */
-	tmp = (AURORA_TPS + AURORA_TPS/2 + baud/2) / baud;
-	tmp = (tmp > 0xff) ? 0xff : tmp;
-	sbus_writeb(tmp, &bp->r[chip]->r[CD180_RTPR]);
-	
-	switch (C_CSIZE(tty))  {
-	 case CS5:
-		cor1 |= COR1_5BITS;
-		break;
-	 case CS6:
-		cor1 |= COR1_6BITS;
-		break;
-	 case CS7:
-		cor1 |= COR1_7BITS;
-		break;
-	 case CS8:
-		cor1 |= COR1_8BITS;
-		break;
-	}
-	
-	if (C_CSTOPB(tty)) 
-		cor1 |= COR1_2SB;
-	
-	cor1 |= COR1_IGNORE;
-	if (C_PARENB(tty))  {
-		cor1 |= COR1_NORMPAR;
-		if (C_PARODD(tty)) 
-			cor1 |= COR1_ODDP;
-		if (I_INPCK(tty)) 
-			cor1 &= ~COR1_IGNORE;
-	}
-	/* Set marking of some errors */
-	port->mark_mask = RCSR_OE | RCSR_TOUT;
-	if (I_INPCK(tty)) 
-		port->mark_mask |= RCSR_FE | RCSR_PE;
-	if (I_BRKINT(tty) || I_PARMRK(tty)) 
-		port->mark_mask |= RCSR_BREAK;
-	if (I_IGNPAR(tty)) 
-		port->mark_mask &= ~(RCSR_FE | RCSR_PE);
-	if (I_IGNBRK(tty))  {
-		port->mark_mask &= ~RCSR_BREAK;
-		if (I_IGNPAR(tty)) 
-			/* Real raw mode. Ignore all */
-			port->mark_mask &= ~RCSR_OE;
-	}
-	/* Enable Hardware Flow Control */
-	if (C_CRTSCTS(tty))  {
-/*#ifdef AURORA_BRAIN_DAMAGED_CTS
-		port->SRER |= SRER_DSR | SRER_CTS;
-		mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD;
-		mcor2 |= MCOR2_DSROD | MCOR2_CTSOD;
-		tty->hw_stopped = !(aurora_in(bp, CD180_MSVR) & (MSVR_CTS|MSVR_DSR));
-#else*/
-		port->COR2 |= COR2_CTSAE;
-/*#endif*/
-		if (bp->flags&AURORA_BOARD_DTR_FLOW_OK) {
-			mcor1 |= AURORA_RXTH;
-		}
-	}
-	/* Enable Software Flow Control. FIXME: I'm not sure about this */
-	/* Some people reported that it works, but I still doubt */
-	if (I_IXON(tty))  {
-		port->COR2 |= COR2_TXIBE;
-		cor3 |= (COR3_FCT | COR3_SCDE);
-		if (I_IXANY(tty))
-			port->COR2 |= COR2_IXM;
-		sbus_writeb(START_CHAR(tty),
-			    &bp->r[chip]->r[CD180_SCHR1]);
-		sbus_writeb(STOP_CHAR(tty),
-			    &bp->r[chip]->r[CD180_SCHR2]);
-		sbus_writeb(START_CHAR(tty),
-			    &bp->r[chip]->r[CD180_SCHR3]);
-		sbus_writeb(STOP_CHAR(tty),
-			    &bp->r[chip]->r[CD180_SCHR4]);
-	}
-	if (!C_CLOCAL(tty))  {
-		/* Enable CD check */
-		port->SRER |= SRER_CD;
-		mcor1 |= MCOR1_CDZD;
-		mcor2 |= MCOR2_CDOD;
-	}
-	
-	if (C_CREAD(tty)) 
-		/* Enable receiver */
-		port->SRER |= SRER_RXD;
-	
-	/* Set input FIFO size (1-8 bytes) */
-	cor3 |= AURORA_RXFIFO; 
-	/* Setting up CD180 channel registers */
-	sbus_writeb(cor1, &bp->r[chip]->r[CD180_COR1]);
-	sbus_writeb(port->COR2, &bp->r[chip]->r[CD180_COR2]);
-	sbus_writeb(cor3, &bp->r[chip]->r[CD180_COR3]);
-	/* Make CD180 know about registers change */
-	aurora_wait_CCR(bp->r[chip]);
-	sbus_writeb(CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3,
-		    &bp->r[chip]->r[CD180_CCR]);
-	/* Setting up modem option registers */
-	sbus_writeb(mcor1, &bp->r[chip]->r[CD180_MCOR1]);
-	sbus_writeb(mcor2, &bp->r[chip]->r[CD180_MCOR2]);
-	/* Enable CD180 transmitter & receiver */
-	aurora_wait_CCR(bp->r[chip]);
-	sbus_writeb(CCR_TXEN | CCR_RXEN, &bp->r[chip]->r[CD180_CCR]);
-	/* Enable interrupts */
-	sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-	/* And finally set RTS on */
-	sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
-#ifdef AURORA_DEBUG
-	printk("aurora_change_speed: end\n");
-#endif
-}
-
-/* Must be called with interrupts enabled */
-static int aurora_setup_port(struct Aurora_board *bp, struct Aurora_port *port)
-{
-	unsigned long flags;
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_setup_port: start %d\n",port_No(port));
-#endif
-	if (port->flags & ASYNC_INITIALIZED)
-		return 0;
-		
-	if (!port->xmit_buf) {
-		/* We may sleep in get_zeroed_page() */
-		unsigned long tmp;
-		
-		if (!(tmp = get_zeroed_page(GFP_KERNEL)))
-			return -ENOMEM;
-		    
-		if (port->xmit_buf) {
-			free_page(tmp);
-			return -ERESTARTSYS;
-		}
-		port->xmit_buf = (unsigned char *) tmp;
-	}
-		
-	save_flags(flags); cli();
-		
-	if (port->tty) 
-		clear_bit(TTY_IO_ERROR, &port->tty->flags);
-		
-#ifdef MODULE
-	if ((port->count == 1) && ((++bp->count) == 1))
-			bp->flags |= AURORA_BOARD_ACTIVE;
-#endif
-
-	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
-	aurora_change_speed(bp, port);
-	port->flags |= ASYNC_INITIALIZED;
-		
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_setup_port: end\n");
-#endif
-	return 0;
-}
-
-/* Must be called with interrupts disabled */
-static void aurora_shutdown_port(struct Aurora_board *bp, struct Aurora_port *port)
-{
-	struct tty_struct *tty;
-	unsigned char chip;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_shutdown_port: start\n");
-#endif
-	if (!(port->flags & ASYNC_INITIALIZED)) 
-		return;
-	
-	chip = AURORA_CD180(port_No(port));
-	
-#ifdef AURORA_REPORT_OVERRUN
-	printk("aurora%d: port %d: Total %ld overruns were detected.\n",
-	       board_No(bp), port_No(port), port->overrun);
-#endif	
-#ifdef AURORA_REPORT_FIFO
-	{
-		int i;
-		
-		printk("aurora%d: port %d: FIFO hits [ ",
-		       board_No(bp), port_No(port));
-		for (i = 0; i < 10; i++)  {
-			printk("%ld ", port->hits[i]);
-		}
-		printk("].\n");
-	}
-#endif	
-	if (port->xmit_buf)  {
-		free_page((unsigned long) port->xmit_buf);
-		port->xmit_buf = NULL;
-	}
-
-	if (!(tty = port->tty) || C_HUPCL(tty))  {
-		/* Drop DTR */
-		port->MSVR &= ~(bp->DTR|bp->RTS);
-		sbus_writeb(port->MSVR,
-			    &bp->r[chip]->r[CD180_MSVR]);
-	}
-	
-        /* Select port */
-	sbus_writeb(port_No(port) & 7,
-		    &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-
-	/* Reset port */
-	aurora_wait_CCR(bp->r[chip]);
-	sbus_writeb(CCR_SOFTRESET, &bp->r[chip]->r[CD180_CCR]);
-
-	/* Disable all interrupts from this port */
-	port->SRER = 0;
-	sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-	
-	if (tty)  
-		set_bit(TTY_IO_ERROR, &tty->flags);
-	port->flags &= ~ASYNC_INITIALIZED;
-
-#ifdef MODULE
-	if (--bp->count < 0)  {
-		printk(KERN_DEBUG "aurora%d: aurora_shutdown_port: "
-		       "bad board count: %d\n",
-		       board_No(bp), bp->count);
-		bp->count = 0;
-	}
-	
-	if (!bp->count)
-		bp->flags &= ~AURORA_BOARD_ACTIVE;
-#endif
-
-#ifdef AURORA_DEBUG
-	printk("aurora_shutdown_port: end\n");
-#endif
-}
-
-	
-static int block_til_ready(struct tty_struct *tty, struct file * filp,
-			   struct Aurora_port *port)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	struct Aurora_board *bp = port_Board(port);
-	int    retval;
-	int    do_clocal = 0;
-	int    CD;
-	unsigned char chip;
-	
-#ifdef AURORA_DEBUG
-	printk("block_til_ready: start\n");
-#endif
-	chip = AURORA_CD180(port_No(port));
-
-	/* If the device is in the middle of being closed, then block
-	 * until it's done, and then try again.
-	 */
-	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&port->close_wait);
-		if (port->flags & ASYNC_HUP_NOTIFY)
-			return -EAGAIN;
-		else
-			return -ERESTARTSYS;
-	}
-
-	/* If non-blocking mode is set, or the port is not enabled,
-	 * then make the check up front and then exit.
-	 */
-	if ((filp->f_flags & O_NONBLOCK) ||
-	    (tty->flags & (1 << TTY_IO_ERROR))) {
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-		return 0;
-	}
-
-	if (C_CLOCAL(tty))  
-		do_clocal = 1;
-
-	/* Block waiting for the carrier detect and the line to become
-	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, info->count is dropped by one, so that
-	 * rs_close() knows when to free things.  We restore it upon
-	 * exit, either normal or abnormal.
-	 */
-	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
-	cli();
-	if (!tty_hung_up_p(filp))
-		port->count--;
-	sti();
-	port->blocked_open++;
-	while (1) {
-		cli();
-		sbus_writeb(port_No(port) & 7,
-			    &bp->r[chip]->r[CD180_CAR]);
-		udelay(1);
-		CD = sbus_readb(&bp->r[chip]->r[CD180_MSVR]) & MSVR_CD;
-		port->MSVR=bp->RTS;
-
-		/* auto drops DTR */
-		sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
-		sti();
-		set_current_state(TASK_INTERRUPTIBLE);
-		if (tty_hung_up_p(filp) ||
-		    !(port->flags & ASYNC_INITIALIZED)) {
-			if (port->flags & ASYNC_HUP_NOTIFY)
-				retval = -EAGAIN;
-			else
-				retval = -ERESTARTSYS;	
-			break;
-		}
-		if (!(port->flags & ASYNC_CLOSING) &&
-		    (do_clocal || CD))
-			break;
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-		schedule();
-	}
-	current->state = TASK_RUNNING;
-	remove_wait_queue(&port->open_wait, &wait);
-	if (!tty_hung_up_p(filp))
-		port->count++;
-	port->blocked_open--;
-	if (retval)
-		return retval;
-	
-	port->flags |= ASYNC_NORMAL_ACTIVE;
-#ifdef AURORA_DEBUG
-	printk("block_til_ready: end\n");
-#endif
-	return 0;
-}	
-
-static int aurora_open(struct tty_struct * tty, struct file * filp)
-{
-	int board;
-	int error;
-	struct Aurora_port * port;
-	struct Aurora_board * bp;
-	unsigned long flags;
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_open: start\n");
-#endif
-	
-	board = AURORA_BOARD(tty->index);
-	if (board > AURORA_NBOARD ||
-	    !(aurora_board[board].flags & AURORA_BOARD_PRESENT)) {
-#ifdef AURORA_DEBUG
-		printk("aurora_open: error board %d present %d\n",
-		       board, aurora_board[board].flags & AURORA_BOARD_PRESENT);
-#endif
-		return -ENODEV;
-	}
-	
-	bp = &aurora_board[board];
-	port = aurora_port + board * AURORA_NPORT * AURORA_NCD180 + AURORA_PORT(tty->index);
-	if ((aurora_paranoia_check(port, tty->name, "aurora_open")) {
-#ifdef AURORA_DEBUG
-		printk("aurora_open: error paranoia check\n");
-#endif
-		return -ENODEV;
-	}
-	
-	port->count++;
-	tty->driver_data = port;
-	port->tty = tty;
-	
-	if ((error = aurora_setup_port(bp, port))) {
-#ifdef AURORA_DEBUG
-		printk("aurora_open: error aurora_setup_port ret %d\n",error);
-#endif
-		return error;
-	}
-
-	if ((error = block_til_ready(tty, filp, port))) {
-#ifdef AURORA_DEBUG
-		printk("aurora_open: error block_til_ready ret %d\n",error);
-#endif
-		return error;
-	}
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_open: end\n");
-#endif
-	return 0;
-}
-
-static void aurora_close(struct tty_struct * tty, struct file * filp)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board *bp;
-	unsigned long flags;
-	unsigned long timeout;
-	unsigned char chip;
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_close: start\n");
-#endif
-	
-	if (!port || (aurora_paranoia_check(port, tty->name, "close"))
-		return;
-	
-	chip = AURORA_CD180(port_No(port));
-
-	save_flags(flags); cli();
-	if (tty_hung_up_p(filp))  {
-		restore_flags(flags);
-		return;
-	}
-	
-	bp = port_Board(port);
-	if ((tty->count == 1) && (port->count != 1))  {
-		printk(KERN_DEBUG "aurora%d: aurora_close: bad port count; "
-		       "tty->count is 1, port count is %d\n",
-		       board_No(bp), port->count);
-		port->count = 1;
-	}
-	if (--port->count < 0)  {
-		printk(KERN_DEBUG "aurora%d: aurora_close: bad port "
-		       "count for tty%d: %d\n",
-		       board_No(bp), port_No(port), port->count);
-		port->count = 0;
-	}
-	if (port->count)  {
-		restore_flags(flags);
-		return;
-	}
-	port->flags |= ASYNC_CLOSING;
-
-	/* Now we wait for the transmit buffer to clear; and we notify 
-	 * the line discipline to only process XON/XOFF characters.
-	 */
-	tty->closing = 1;
-	if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE){
-#ifdef AURORA_DEBUG
-		printk("aurora_close: waiting to flush...\n");
-#endif
-		tty_wait_until_sent(tty, port->closing_wait);
-	}
-
-	/* At this point we stop accepting input.  To do this, we
-	 * disable the receive line status interrupts, and tell the
-	 * interrupt driver to stop checking the data ready bit in the
-	 * line status register.
-	 */
-	port->SRER &= ~SRER_RXD;
-	if (port->flags & ASYNC_INITIALIZED) {
-		port->SRER &= ~SRER_TXRDY;
-		port->SRER |= SRER_TXEMPTY;
-		sbus_writeb(port_No(port) & 7,
-			    &bp->r[chip]->r[CD180_CAR]);
-		udelay(1);
-		sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-		/*
-		 * Before we drop DTR, make sure the UART transmitter
-		 * has completely drained; this is especially
-		 * important if there is a transmit FIFO!
-		 */
-		timeout = jiffies+HZ;
-		while(port->SRER & SRER_TXEMPTY)  {
-			msleep_interruptible(jiffies_to_msecs(port->timeout));
-			if (time_after(jiffies, timeout))
-				break;
-		}
-	}
-#ifdef AURORA_DEBUG
-	printk("aurora_close: shutdown_port\n");
-#endif
-	aurora_shutdown_port(bp, port);
-	if (tty->driver->flush_buffer)
-		tty->driver->flush_buffer(tty);
-	tty_ldisc_flush(tty);
-	tty->closing = 0;
-	port->event = 0;
-	port->tty = 0;
-	if (port->blocked_open) {
-		if (port->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(port->close_delay));
-		}
-		wake_up_interruptible(&port->open_wait);
-	}
-	port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-	wake_up_interruptible(&port->close_wait);
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_close: end\n");
-#endif
-}
-
-static int aurora_write(struct tty_struct * tty, 
-			const unsigned char *buf, int count)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board *bp;
-	int c, total = 0;
-	unsigned long flags;
-	unsigned char chip;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_write: start %d\n",count);
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_write"))
-		return 0;
-		
-	chip = AURORA_CD180(port_No(port));
-	
-	bp = port_Board(port);
-
-	if (!tty || !port->xmit_buf || !tmp_buf)
-		return 0;
-
-	save_flags(flags);
-	while (1) {
-		cli();
-		c = min(count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
-				   SERIAL_XMIT_SIZE - port->xmit_head));
-		if (c <= 0) {
-			restore_flags(flags);
-			break;
-		}
-		memcpy(port->xmit_buf + port->xmit_head, buf, c);
-		port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
-		port->xmit_cnt += c;
-		restore_flags(flags);
-
-		buf += c;
-		count -= c;
-		total += c;
-	}
-
-	cli();
-	if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped &&
-	    !(port->SRER & SRER_TXRDY)) {
-		port->SRER |= SRER_TXRDY;
-		sbus_writeb(port_No(port) & 7,
-			    &bp->r[chip]->r[CD180_CAR]);
-		udelay(1);
-		sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-	}
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_write: end %d\n",total);
-#endif
-	return total;
-}
-
-static void aurora_put_char(struct tty_struct * tty, unsigned char ch)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	unsigned long flags;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_put_char: start %c\n",ch);
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_put_char"))
-		return;
-
-	if (!tty || !port->xmit_buf)
-		return;
-
-	save_flags(flags); cli();
-	
-	if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
-		restore_flags(flags);
-		return;
-	}
-
-	port->xmit_buf[port->xmit_head++] = ch;
-	port->xmit_head &= SERIAL_XMIT_SIZE - 1;
-	port->xmit_cnt++;
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_put_char: end\n");
-#endif
-}
-
-static void aurora_flush_chars(struct tty_struct * tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	unsigned long flags;
-	unsigned char chip;
-
-/*#ifdef AURORA_DEBUG
-	printk("aurora_flush_chars: start\n");
-#endif*/
-	if ((aurora_paranoia_check(port, tty->name, "aurora_flush_chars"))
-		return;
-		
-	chip = AURORA_CD180(port_No(port));
-	
-	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
-	    !port->xmit_buf)
-		return;
-
-	save_flags(flags); cli();
-	port->SRER |= SRER_TXRDY;
-	sbus_writeb(port_No(port) & 7,
-		    &port_Board(port)->r[chip]->r[CD180_CAR]);
-	udelay(1);
-	sbus_writeb(port->SRER,
-		    &port_Board(port)->r[chip]->r[CD180_SRER]);
-	restore_flags(flags);
-/*#ifdef AURORA_DEBUG
-	printk("aurora_flush_chars: end\n");
-#endif*/
-}
-
-static int aurora_write_room(struct tty_struct * tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	int	ret;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_write_room: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_write_room"))
-		return 0;
-
-	ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
-	if (ret < 0)
-		ret = 0;
-#ifdef AURORA_DEBUG
-	printk("aurora_write_room: end\n");
-#endif
-	return ret;
-}
-
-static int aurora_chars_in_buffer(struct tty_struct *tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-				
-	if ((aurora_paranoia_check(port, tty->name, "aurora_chars_in_buffer"))
-		return 0;
-	
-	return port->xmit_cnt;
-}
-
-static void aurora_flush_buffer(struct tty_struct *tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	unsigned long flags;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_flush_buffer: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_flush_buffer"))
-		return;
-
-	save_flags(flags); cli();
-	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
-	restore_flags(flags);
-	
-	tty_wakeup(tty);
-#ifdef AURORA_DEBUG
-	printk("aurora_flush_buffer: end\n");
-#endif
-}
-
-static int aurora_tiocmget(struct tty_struct *tty, struct file *file)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board * bp;
-	unsigned char status,chip;
-	unsigned int result;
-	unsigned long flags;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_get_modem_info: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, __FUNCTION__))
-		return -ENODEV;
-
-	chip = AURORA_CD180(port_No(port));
-
-	bp = port_Board(port);
-
-	save_flags(flags); cli();
-
-	sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-
-	status = sbus_readb(&bp->r[chip]->r[CD180_MSVR]);
-	result = 0/*bp->r[chip]->r[AURORA_RI] & (1u << port_No(port)) ? 0 : TIOCM_RNG*/;
-
-	restore_flags(flags);
-
-	result |= ((status & bp->RTS) ? TIOCM_RTS : 0)
-		| ((status & bp->DTR) ? TIOCM_DTR : 0)
-		| ((status & MSVR_CD)  ? TIOCM_CAR : 0)
-		| ((status & MSVR_DSR) ? TIOCM_DSR : 0)
-		| ((status & MSVR_CTS) ? TIOCM_CTS : 0);
-
-#ifdef AURORA_DEBUG
-	printk("aurora_get_modem_info: end\n");
-#endif
-	return result;
-}
-
-static int aurora_tiocmset(struct tty_struct *tty, struct file *file,
-			   unsigned int set, unsigned int clear)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	unsigned int arg;
-	unsigned long flags;
-	struct Aurora_board *bp = port_Board(port);
-	unsigned char chip;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_set_modem_info: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, __FUNCTION__))
-		return -ENODEV;
-
-	chip = AURORA_CD180(port_No(port));
-
-	save_flags(flags); cli();
-	if (set & TIOCM_RTS)
-		port->MSVR |= bp->RTS;
-	if (set & TIOCM_DTR)
-		port->MSVR |= bp->DTR;
-	if (clear & TIOCM_RTS)
-		port->MSVR &= ~bp->RTS;
-	if (clear & TIOCM_DTR)
-		port->MSVR &= ~bp->DTR;
-
-	sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-
-	sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
-
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_set_modem_info: end\n");
-#endif
-	return 0;
-}
-
-static void aurora_send_break(struct Aurora_port * port, unsigned long length)
-{
-	struct Aurora_board *bp = port_Board(port);
-	unsigned long flags;
-	unsigned char chip;
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_send_break: start\n");
-#endif
-	chip = AURORA_CD180(port_No(port));
-	
-	save_flags(flags); cli();
-
-	port->break_length = AURORA_TPS / HZ * length;
-	port->COR2 |= COR2_ETC;
-	port->SRER  |= SRER_TXRDY;
-	sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-
-	sbus_writeb(port->COR2, &bp->r[chip]->r[CD180_COR2]);
-	sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
-	aurora_wait_CCR(bp->r[chip]);
-
-	sbus_writeb(CCR_CORCHG2, &bp->r[chip]->r[CD180_CCR]);
-	aurora_wait_CCR(bp->r[chip]);
-
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_send_break: end\n");
-#endif
-}
-
-static int aurora_set_serial_info(struct Aurora_port * port,
-				  struct serial_struct * newinfo)
-{
-	struct serial_struct tmp;
-	struct Aurora_board *bp = port_Board(port);
-	int change_speed;
-	unsigned long flags;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_set_serial_info: start\n");
-#endif
-	if (copy_from_user(&tmp, newinfo, sizeof(tmp)))
-		return -EFAULT;
-#if 0	
-	if ((tmp.irq != bp->irq) ||
-	    (tmp.port != bp->base) ||
-	    (tmp.type != PORT_CIRRUS) ||
-	    (tmp.baud_base != (bp->oscfreq + CD180_TPC/2) / CD180_TPC) ||
-	    (tmp.custom_divisor != 0) ||
-	    (tmp.xmit_fifo_size != CD180_NFIFO) ||
-	    (tmp.flags & ~AURORA_LEGAL_FLAGS))
-		return -EINVAL;
-#endif	
-	
-	change_speed = ((port->flags & ASYNC_SPD_MASK) !=
-			(tmp.flags & ASYNC_SPD_MASK));
-	
-	if (!capable(CAP_SYS_ADMIN)) {
-		if ((tmp.close_delay != port->close_delay) ||
-		    (tmp.closing_wait != port->closing_wait) ||
-		    ((tmp.flags & ~ASYNC_USR_MASK) !=
-		     (port->flags & ~ASYNC_USR_MASK)))  
-			return -EPERM;
-		port->flags = ((port->flags & ~ASYNC_USR_MASK) |
-			       (tmp.flags & ASYNC_USR_MASK));
-	} else  {
-		port->flags = ((port->flags & ~ASYNC_FLAGS) |
-			       (tmp.flags & ASYNC_FLAGS));
-		port->close_delay = tmp.close_delay;
-		port->closing_wait = tmp.closing_wait;
-	}
-	if (change_speed)  {
-		save_flags(flags); cli();
-		aurora_change_speed(bp, port);
-		restore_flags(flags);
-	}
-#ifdef AURORA_DEBUG
-	printk("aurora_set_serial_info: end\n");
-#endif
-	return 0;
-}
-
-extern int aurora_get_serial_info(struct Aurora_port * port,
-				  struct serial_struct * retinfo)
-{
-	struct serial_struct tmp;
-	struct Aurora_board *bp = port_Board(port);
-	
-#ifdef AURORA_DEBUG
-	printk("aurora_get_serial_info: start\n");
-#endif
-	if (!access_ok(VERIFY_WRITE, (void *) retinfo, sizeof(tmp)))
-		return -EFAULT;
-	
-	memset(&tmp, 0, sizeof(tmp));
-	tmp.type = PORT_CIRRUS;
-	tmp.line = port - aurora_port;
-	tmp.port = 0;
-	tmp.irq  = bp->irq;
-	tmp.flags = port->flags;
-	tmp.baud_base = (bp->oscfreq + CD180_TPC/2) / CD180_TPC;
-	tmp.close_delay = port->close_delay * HZ/100;
-	tmp.closing_wait = port->closing_wait * HZ/100;
-	tmp.xmit_fifo_size = CD180_NFIFO;
-	copy_to_user(retinfo, &tmp, sizeof(tmp));
-#ifdef AURORA_DEBUG
-printk("aurora_get_serial_info: end\n");
-#endif
-	return 0;
-}
-
-static int aurora_ioctl(struct tty_struct * tty, struct file * filp, 
-		    unsigned int cmd, unsigned long arg)
-		    
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	int retval;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_ioctl: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_ioctl"))
-		return -ENODEV;
-	
-	switch (cmd) {
-	case TCSBRK:	/* SVID version: non-zero arg --> no break */
-		retval = tty_check_change(tty);
-		if (retval)
-			return retval;
-		tty_wait_until_sent(tty, 0);
-		if (!arg)
-			aurora_send_break(port, HZ/4);	/* 1/4 second */
-		return 0;
-	case TCSBRKP:	/* support for POSIX tcsendbreak() */
-		retval = tty_check_change(tty);
-		if (retval)
-			return retval;
-		tty_wait_until_sent(tty, 0);
-		aurora_send_break(port, arg ? arg*(HZ/10) : HZ/4);
-		return 0;
-	case TIOCGSOFTCAR:
-		return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *)arg);
-	case TIOCSSOFTCAR:
-		if (get_user(arg,(unsigned long *)arg))
-			return -EFAULT;
-		tty->termios->c_cflag =
-			((tty->termios->c_cflag & ~CLOCAL) |
-			 (arg ? CLOCAL : 0));
-		return 0;
-	case TIOCGSERIAL:	
-		return aurora_get_serial_info(port, (struct serial_struct *) arg);
-	case TIOCSSERIAL:	
-		return aurora_set_serial_info(port, (struct serial_struct *) arg);
-	default:
-		return -ENOIOCTLCMD;
-	};
-#ifdef AURORA_DEBUG
-	printk("aurora_ioctl: end\n");
-#endif
-	return 0;
-}
-
-static void aurora_throttle(struct tty_struct * tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board *bp;
-	unsigned long flags;
-	unsigned char chip;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_throttle: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_throttle"))
-		return;
-	
-	bp = port_Board(port);
-	chip = AURORA_CD180(port_No(port));
-	
-	save_flags(flags); cli();
-	port->MSVR &= ~bp->RTS;
-	sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-	if (I_IXOFF(tty))  {
-		aurora_wait_CCR(bp->r[chip]);
-		sbus_writeb(CCR_SSCH2, &bp->r[chip]->r[CD180_CCR]);
-		aurora_wait_CCR(bp->r[chip]);
-	}
-	sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_throttle: end\n");
-#endif
-}
-
-static void aurora_unthrottle(struct tty_struct * tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board *bp;
-	unsigned long flags;
-	unsigned char chip;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_unthrottle: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_unthrottle"))
-		return;
-	
-	bp = port_Board(port);
-	
-	chip = AURORA_CD180(port_No(port));
-	
-	save_flags(flags); cli();
-	port->MSVR |= bp->RTS;
-	sbus_writeb(port_No(port) & 7,
-		    &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-	if (I_IXOFF(tty))  {
-		aurora_wait_CCR(bp->r[chip]);
-		sbus_writeb(CCR_SSCH1,
-			    &bp->r[chip]->r[CD180_CCR]);
-		aurora_wait_CCR(bp->r[chip]);
-	}
-	sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_unthrottle: end\n");
-#endif
-}
-
-static void aurora_stop(struct tty_struct * tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board *bp;
-	unsigned long flags;
-	unsigned char chip;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_stop: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_stop"))
-		return;
-	
-	bp = port_Board(port);
-	
-	chip = AURORA_CD180(port_No(port));
-	
-	save_flags(flags); cli();
-	port->SRER &= ~SRER_TXRDY;
-	sbus_writeb(port_No(port) & 7,
-		    &bp->r[chip]->r[CD180_CAR]);
-	udelay(1);
-	sbus_writeb(port->SRER,
-		    &bp->r[chip]->r[CD180_SRER]);
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_stop: end\n");
-#endif
-}
-
-static void aurora_start(struct tty_struct * tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board *bp;
-	unsigned long flags;
-	unsigned char chip;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_start: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_start"))
-		return;
-	
-	bp = port_Board(port);
-	
-	chip = AURORA_CD180(port_No(port));
-	
-	save_flags(flags); cli();
-	if (port->xmit_cnt && port->xmit_buf && !(port->SRER & SRER_TXRDY))  {
-		port->SRER |= SRER_TXRDY;
-		sbus_writeb(port_No(port) & 7,
-			    &bp->r[chip]->r[CD180_CAR]);
-		udelay(1);
-		sbus_writeb(port->SRER,
-			    &bp->r[chip]->r[CD180_SRER]);
-	}
-	restore_flags(flags);
-#ifdef AURORA_DEBUG
-	printk("aurora_start: end\n");
-#endif
-}
-
-/*
- * This routine is called from the scheduler tqueue when the interrupt
- * routine has signalled that a hangup has occurred.  The path of
- * hangup processing is:
- *
- * 	serial interrupt routine -> (scheduler tqueue) ->
- * 	do_aurora_hangup() -> tty->hangup() -> aurora_hangup()
- * 
- */
-static void do_aurora_hangup(void *private_)
-{
-	struct Aurora_port	*port = (struct Aurora_port *) private_;
-	struct tty_struct	*tty;
-
-#ifdef AURORA_DEBUG
-	printk("do_aurora_hangup: start\n");
-#endif
-	tty = port->tty;
-	if (tty != NULL) {
-		tty_hangup(tty);	/* FIXME: module removal race - AKPM */
-#ifdef AURORA_DEBUG
-		printk("do_aurora_hangup: end\n");
-#endif
-	}
-}
-
-static void aurora_hangup(struct tty_struct * tty)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	struct Aurora_board *bp;
-				
-#ifdef AURORA_DEBUG
-	printk("aurora_hangup: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_hangup"))
-		return;
-	
-	bp = port_Board(port);
-	
-	aurora_shutdown_port(bp, port);
-	port->event = 0;
-	port->count = 0;
-	port->flags &= ~ASYNC_NORMAL_ACTIVE;
-	port->tty = 0;
-	wake_up_interruptible(&port->open_wait);
-#ifdef AURORA_DEBUG
-	printk("aurora_hangup: end\n");
-#endif
-}
-
-static void aurora_set_termios(struct tty_struct * tty, struct termios * old_termios)
-{
-	struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
-	unsigned long flags;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_set_termios: start\n");
-#endif
-	if ((aurora_paranoia_check(port, tty->name, "aurora_set_termios"))
-		return;
-	
-	if (tty->termios->c_cflag == old_termios->c_cflag &&
-	    tty->termios->c_iflag == old_termios->c_iflag)
-		return;
-
-	save_flags(flags); cli();
-	aurora_change_speed(port_Board(port), port);
-	restore_flags(flags);
-
-	if ((old_termios->c_cflag & CRTSCTS) &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		aurora_start(tty);
-	}
-#ifdef AURORA_DEBUG
-	printk("aurora_set_termios: end\n");
-#endif
-}
-
-static void do_aurora_bh(void)
-{
-	 run_task_queue(&tq_aurora);
-}
-
-static void do_softint(void *private_)
-{
-	struct Aurora_port	*port = (struct Aurora_port *) private_;
-	struct tty_struct	*tty;
-
-#ifdef AURORA_DEBUG
-	printk("do_softint: start\n");
-#endif
-	tty = port->tty;
-	if (tty == NULL)
-		return;
-
-	if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &port->event)) {
-		tty_wakeup(tty);
-	}
-#ifdef AURORA_DEBUG
-	printk("do_softint: end\n");
-#endif
-}
-
-static const struct tty_operations aurora_ops = {
-	.open  = aurora_open,
-	.close = aurora_close,
-	.write = aurora_write,
-	.put_char = aurora_put_char,
-	.flush_chars = aurora_flush_chars,
-	.write_room = aurora_write_room,
-	.chars_in_buffer = aurora_chars_in_buffer,
-	.flush_buffer = aurora_flush_buffer,
-	.ioctl = aurora_ioctl,
-	.throttle = aurora_throttle,
-	.unthrottle = aurora_unthrottle,
-	.set_termios = aurora_set_termios,
-	.stop = aurora_stop,
-	.start = aurora_start,
-	.hangup = aurora_hangup,
-	.tiocmget = aurora_tiocmget,
-	.tiocmset = aurora_tiocmset,
-};
-
-static int aurora_init_drivers(void)
-{
-	int error;
-	int i;
-
-#ifdef AURORA_DEBUG
-	printk("aurora_init_drivers: start\n");
-#endif
-	tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL);
-	if (tmp_buf == NULL) {
-		printk(KERN_ERR "aurora: Couldn't get free page.\n");
-		return 1;
-	}
-	init_bh(AURORA_BH, do_aurora_bh);
-	aurora_driver = alloc_tty_driver(AURORA_INPORTS);
-	if (!aurora_driver) {
-		printk(KERN_ERR "aurora: Couldn't allocate tty driver.\n");
-		free_page((unsigned long) tmp_buf);
-		return 1;
-	}
-	aurora_driver->owner = THIS_MODULE;
-	aurora_driver->name = "ttyA";
-	aurora_driver->major = AURORA_MAJOR;
-	aurora_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	aurora_driver->subtype = SERIAL_TYPE_NORMAL;
-	aurora_driver->init_termios = tty_std_termios;
-	aurora_driver->init_termios.c_cflag =
-		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	aurora_driver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(aurora_driver, &aurora_ops);
-	error = tty_register_driver(aurora_driver);
-	if (error) {
-		put_tty_driver(aurora_driver);
-		free_page((unsigned long) tmp_buf);
-		printk(KERN_ERR "aurora: Couldn't register aurora driver, error = %d\n",
-		       error);
-		return 1;
-	}
-	
-	memset(aurora_port, 0, sizeof(aurora_port));
-	for (i = 0; i < AURORA_TNPORTS; i++)  {
-		aurora_port[i].magic = AURORA_MAGIC;
-		aurora_port[i].tqueue.routine = do_softint;
-		aurora_port[i].tqueue.data = &aurora_port[i];
-		aurora_port[i].tqueue_hangup.routine = do_aurora_hangup;
-		aurora_port[i].tqueue_hangup.data = &aurora_port[i];
-		aurora_port[i].close_delay = 50 * HZ/100;
-		aurora_port[i].closing_wait = 3000 * HZ/100;
-		init_waitqueue_head(&aurora_port[i].open_wait);
-		init_waitqueue_head(&aurora_port[i].close_wait);
-	}
-#ifdef AURORA_DEBUG
-	printk("aurora_init_drivers: end\n");
-#endif
-	return 0;
-}
-
-static void aurora_release_drivers(void)
-{
-#ifdef AURORA_DEBUG
-	printk("aurora_release_drivers: start\n");
-#endif
-	free_page((unsigned long)tmp_buf);
-	tty_unregister_driver(aurora_driver);
-	put_tty_driver(aurora_driver);
-#ifdef AURORA_DEBUG
-	printk("aurora_release_drivers: end\n");
-#endif
-}
-
-/*
- * Called at boot time.
- *
- * You can specify IO base for up to RC_NBOARD cards,
- * using line "riscom8=0xiobase1,0xiobase2,.." at LILO prompt.
- * Note that there will be no probing at default
- * addresses in this case.
- *
- */
-void __init aurora_setup(char *str, int *ints)
-{
-	int i;
-
-	for(i=0;(i<ints[0])&&(i<4);i++) {
-		if (ints[i+1]) irqs[i]=ints[i+1];
-		}
-}
-
-static int __init aurora_real_init(void)
-{
-	int found;
-	int i;
-
-	printk(KERN_INFO "aurora: Driver starting.\n");
-	if(aurora_init_drivers())
-		return -EIO;
-	found = aurora_probe();
-	if(!found) {
-		aurora_release_drivers();
-		printk(KERN_INFO "aurora: No Aurora Multiport boards detected.\n");
-		return -EIO;
-	} else {
-		printk(KERN_INFO "aurora: %d boards found.\n", found);
-	}
-	for (i = 0; i < found; i++) {
-		int ret = aurora_setup_board(&aurora_board[i]);
-
-		if (ret) {
-#ifdef AURORA_DEBUG
-			printk(KERN_ERR "aurora_init: error aurora_setup_board ret %d\n",
-			       ret);
-#endif
-			return ret;
-		}
-	}
-	return 0;
-}
-
-int irq  = 0;
-int irq1 = 0;
-int irq2 = 0;
-int irq3 = 0;
-module_param(irq , int, 0);
-module_param(irq1, int, 0);
-module_param(irq2, int, 0);
-module_param(irq3, int, 0);
-
-static int __init aurora_init(void) 
-{
-	if (irq ) irqs[0]=irq ;
-	if (irq1) irqs[1]=irq1;
-	if (irq2) irqs[2]=irq2;
-	if (irq3) irqs[3]=irq3;
-	return aurora_real_init();
-}
-	
-static void __exit aurora_cleanup(void)
-{
-	int i;
-	
-#ifdef AURORA_DEBUG
-printk("cleanup_module: aurora_release_drivers\n");
-#endif
-
-	aurora_release_drivers();
-	for (i = 0; i < AURORA_NBOARD; i++)
-		if (aurora_board[i].flags & AURORA_BOARD_PRESENT) {
-			aurora_shutdown_board(&aurora_board[i]);
-			aurora_release_io_range(&aurora_board[i]);
-		}
-}
-
-module_init(aurora_init);
-module_exit(aurora_cleanup);
-MODULE_LICENSE("GPL");


             reply	other threads:[~2007-01-04 18:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-04 18:53 Adrian Bunk [this message]
2007-01-20 14:03 Adrian Bunk
2007-02-20  0:07 Adrian Bunk
2007-02-20  9:04 ` David Miller

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