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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 01:11:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 01:11:04 +0300
commite6bee325e49f17c65c1fd66e9e8b348c85788341 (patch)
treebcc9e5d8e82efa9009edd481a837cc3626360091 /drivers/char/sx.c
parenta5e6b135bdff649e4330f98e2e80dbb1984f7e77 (diff)
parent6ae705b23be8da52d3163be9d81e9b767876aaf9 (diff)
downloadlinux-e6bee325e49f17c65c1fd66e9e8b348c85788341.tar.xz
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (76 commits) pch_uart: reference clock on CM-iTC pch_phub: add new device ML7213 n_gsm: fix UIH control byte : P bit should be 0 n_gsm: add a documentation serial: msm_serial_hs: Add MSM high speed UART driver tty_audit: fix tty_audit_add_data live lock on audit disabled tty: move cd1865.h to drivers/staging/tty/ Staging: tty: fix build with epca.c driver pcmcia: synclink_cs: fix prototype for mgslpc_ioctl() Staging: generic_serial: fix double locking bug nozomi: don't use flush_scheduled_work() tty/serial: Relax the device_type restriction from of_serial MAINTAINERS: Update HVC file patterns tty: phase out of ioctl file pointer for tty3270 as well tty: forgot to remove ipwireless from drivers/char/pcmcia/Makefile pch_uart: Fix DMA channel miss-setting issue. pch_uart: fix exclusive access issue pch_uart: fix auto flow control miss-setting issue pch_uart: fix uart clock setting issue pch_uart : Use dev_xxx not pr_xxx ... Fix up trivial conflicts in drivers/misc/pch_phub.c (same patch applied twice, then changes to the same area in one branch)
Diffstat (limited to 'drivers/char/sx.c')
-rw-r--r--drivers/char/sx.c2894
1 files changed, 0 insertions, 2894 deletions
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
deleted file mode 100644
index a786326cea2f..000000000000
--- a/drivers/char/sx.c
+++ /dev/null
@@ -1,2894 +0,0 @@
-/* sx.c -- driver for the Specialix SX series cards.
- *
- * This driver will also support the older SI, and XIO cards.
- *
- *
- * (C) 1998 - 2004 R.E.Wolff@BitWizard.nl
- *
- * Simon Allen (simonallen@cix.compulink.co.uk) wrote a previous
- * version of this driver. Some fragments may have been copied. (none
- * yet :-)
- *
- * Specialix pays for the development and support of this driver.
- * Please DO contact support@specialix.co.uk if you require
- * support. But please read the documentation (sx.txt) first.
- *
- *
- *
- * 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 history:
- * Revision 1.33 2000/03/09 10:00:00 pvdl,wolff
- * - Fixed module and port counting
- * - Fixed signal handling
- * - Fixed an Ooops
- *
- * Revision 1.32 2000/03/07 09:00:00 wolff,pvdl
- * - Fixed some sx_dprintk typos
- * - added detection for an invalid board/module configuration
- *
- * Revision 1.31 2000/03/06 12:00:00 wolff,pvdl
- * - Added support for EISA
- *
- * Revision 1.30 2000/01/21 17:43:06 wolff
- * - Added support for SX+
- *
- * Revision 1.26 1999/08/05 15:22:14 wolff
- * - Port to 2.3.x
- * - Reformatted to Linus' liking.
- *
- * Revision 1.25 1999/07/30 14:24:08 wolff
- * Had accidentally left "gs_debug" set to "-1" instead of "off" (=0).
- *
- * Revision 1.24 1999/07/28 09:41:52 wolff
- * - I noticed the remark about use-count straying in sx.txt. I checked
- * sx_open, and found a few places where that could happen. I hope it's
- * fixed now.
- *
- * Revision 1.23 1999/07/28 08:56:06 wolff
- * - Fixed crash when sx_firmware run twice.
- * - Added sx_slowpoll as a module parameter (I guess nobody really wanted
- * to change it from the default... )
- * - Fixed a stupid editing problem I introduced in 1.22.
- * - Fixed dropping characters on a termios change.
- *
- * Revision 1.22 1999/07/26 21:01:43 wolff
- * Russell Brown noticed that I had overlooked 4 out of six modem control
- * signals in sx_getsignals. Ooops.
- *
- * Revision 1.21 1999/07/23 09:11:33 wolff
- * I forgot to free dynamically allocated memory when the driver is unloaded.
- *
- * Revision 1.20 1999/07/20 06:25:26 wolff
- * The "closing wait" wasn't honoured. Thanks to James Griffiths for
- * reporting this.
- *
- * Revision 1.19 1999/07/11 08:59:59 wolff
- * Fixed an oops in close, when an open was pending. Changed the memtest
- * a bit. Should also test the board in word-mode, however my card fails the
- * memtest then. I still have to figure out what is wrong...
- *
- * Revision 1.18 1999/06/10 09:38:42 wolff
- * Changed the format of the firmware revision from %04x to %x.%02x .
- *
- * Revision 1.17 1999/06/04 09:44:35 wolff
- * fixed problem: reference to pci stuff when config_pci was off...
- * Thanks to Jorge Novo for noticing this.
- *
- * Revision 1.16 1999/06/02 08:30:15 wolff
- * added/removed the workaround for the DCD bug in the Firmware.
- * A bit more debugging code to locate that...
- *
- * Revision 1.15 1999/06/01 11:35:30 wolff
- * when DCD is left low (floating?), on TA's the firmware first tells us
- * that DCD is high, but after a short while suddenly comes to the
- * conclusion that it is low. All this would be fine, if it weren't that
- * Unix requires us to send a "hangup" signal in that case. This usually
- * all happens BEFORE the program has had a chance to ioctl the device
- * into clocal mode..
- *
- * Revision 1.14 1999/05/25 11:18:59 wolff
- * Added PCI-fix.
- * Added checks for return code of sx_sendcommand.
- * Don't issue "reconfig" if port isn't open yet. (bit us on TA modules...)
- *
- * Revision 1.13 1999/04/29 15:18:01 wolff
- * Fixed an "oops" that showed on SuSE 6.0 systems.
- * Activate DTR again after stty 0.
- *
- * Revision 1.12 1999/04/29 07:49:52 wolff
- * Improved "stty 0" handling a bit. (used to change baud to 9600 assuming
- * the connection would be dropped anyway. That is not always the case,
- * and confuses people).
- * Told the card to always monitor the modem signals.
- * Added support for dynamic gs_debug adjustments.
- * Now tells the rest of the system the number of ports.
- *
- * Revision 1.11 1999/04/24 11:11:30 wolff
- * Fixed two stupid typos in the memory test.
- *
- * Revision 1.10 1999/04/24 10:53:39 wolff
- * Added some of Christian's suggestions.
- * Fixed an HW_COOK_IN bug (ISIG was not in I_OTHER. We used to trust the
- * card to send the signal to the process.....)
- *
- * Revision 1.9 1999/04/23 07:26:38 wolff
- * Included Christian Lademann's 2.0 compile-warning fixes and interrupt
- * assignment redesign.
- * Cleanup of some other stuff.
- *
- * Revision 1.8 1999/04/16 13:05:30 wolff
- * fixed a DCD change unnoticed bug.
- *
- * Revision 1.7 1999/04/14 22:19:51 wolff
- * Fixed typo that showed up in 2.0.x builds (get_user instead of Get_user!)
- *
- * Revision 1.6 1999/04/13 18:40:20 wolff
- * changed misc-minor to 161, as assigned by HPA.
- *
- * Revision 1.5 1999/04/13 15:12:25 wolff
- * Fixed use-count leak when "hangup" occurred.
- * Added workaround for a stupid-PCIBIOS bug.
- *
- *
- * Revision 1.4 1999/04/01 22:47:40 wolff
- * Fixed < 1M linux-2.0 problem.
- * (vremap isn't compatible with ioremap in that case)
- *
- * Revision 1.3 1999/03/31 13:45:45 wolff
- * Firmware loading is now done through a separate IOCTL.
- *
- * Revision 1.2 1999/03/28 12:22:29 wolff
- * rcs cleanup
- *
- * Revision 1.1 1999/03/28 12:10:34 wolff
- * Readying for release on 2.0.x (sorry David, 1.01 becomes 1.1 for RCS).
- *
- * Revision 0.12 1999/03/28 09:20:10 wolff
- * Fixed problem in 0.11, continueing cleanup.
- *
- * Revision 0.11 1999/03/28 08:46:44 wolff
- * cleanup. Not good.
- *
- * Revision 0.10 1999/03/28 08:09:43 wolff
- * Fixed loosing characters on close.
- *
- * Revision 0.9 1999/03/21 22:52:01 wolff
- * Ported back to 2.2.... (minor things)
- *
- * Revision 0.8 1999/03/21 22:40:33 wolff
- * Port to 2.0
- *
- * Revision 0.7 1999/03/21 19:06:34 wolff
- * Fixed hangup processing.
- *
- * Revision 0.6 1999/02/05 08:45:14 wolff
- * fixed real_raw problems. Inclusion into kernel imminent.
- *
- * Revision 0.5 1998/12/21 23:51:06 wolff
- * Snatched a nasty bug: sx_transmit_chars was getting re-entered, and it
- * shouldn't have. THATs why I want to have transmit interrupts even when
- * the buffer is empty.
- *
- * Revision 0.4 1998/12/17 09:34:46 wolff
- * PPP works. ioctl works. Basically works!
- *
- * Revision 0.3 1998/12/15 13:05:18 wolff
- * It works! Wow! Gotta start implementing IOCTL and stuff....
- *
- * Revision 0.2 1998/12/01 08:33:53 wolff
- * moved over to 2.1.130
- *
- * Revision 0.1 1998/11/03 21:23:51 wolff
- * Initial revision. Detects SX card.
- *
- * */
-
-#define SX_VERSION 1.33
-
-#include <linux/module.h>
-#include <linux/kdev_t.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/delay.h>
-#include <linux/eisa.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/miscdevice.h>
-#include <linux/bitops.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-/* The 3.0.0 version of sxboards/sxwindow.h uses BYTE and WORD.... */
-#define BYTE u8
-#define WORD u16
-
-/* .... but the 3.0.4 version uses _u8 and _u16. */
-#define _u8 u8
-#define _u16 u16
-
-#include "sxboards.h"
-#include "sxwindow.h"
-
-#include <linux/generic_serial.h>
-#include "sx.h"
-
-/* I don't think that this driver can handle more than 256 ports on
- one machine. You'll have to increase the number of boards in sx.h
- if you want more than 4 boards. */
-
-#ifndef PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8
-#define PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8 0x2000
-#endif
-
-/* Configurable options:
- (Don't be too sure that it'll work if you toggle them) */
-
-/* Am I paranoid or not ? ;-) */
-#undef SX_PARANOIA_CHECK
-
-/* 20 -> 2000 per second. The card should rate-limit interrupts at 100
- Hz, but it is user configurable. I don't recommend going above 1000
- Hz. The interrupt ratelimit might trigger if the interrupt is
- shared with a very active other device. */
-#define IRQ_RATE_LIMIT 20
-
-/* Sharing interrupts is possible now. If the other device wants more
- than 2000 interrupts per second, we'd gracefully decline further
- interrupts. That's not what we want. On the other hand, if the
- other device interrupts 2000 times a second, don't use the SX
- interrupt. Use polling. */
-#undef IRQ_RATE_LIMIT
-
-#if 0
-/* Not implemented */
-/*
- * The following defines are mostly for testing purposes. But if you need
- * some nice reporting in your syslog, you can define them also.
- */
-#define SX_REPORT_FIFO
-#define SX_REPORT_OVERRUN
-#endif
-
-/* Function prototypes */
-static void sx_disable_tx_interrupts(void *ptr);
-static void sx_enable_tx_interrupts(void *ptr);
-static void sx_disable_rx_interrupts(void *ptr);
-static void sx_enable_rx_interrupts(void *ptr);
-static int sx_carrier_raised(struct tty_port *port);
-static void sx_shutdown_port(void *ptr);
-static int sx_set_real_termios(void *ptr);
-static void sx_close(void *ptr);
-static int sx_chars_in_buffer(void *ptr);
-static int sx_init_board(struct sx_board *board);
-static int sx_init_portstructs(int nboards, int nports);
-static long sx_fw_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg);
-static int sx_init_drivers(void);
-
-static struct tty_driver *sx_driver;
-
-static DEFINE_MUTEX(sx_boards_lock);
-static struct sx_board boards[SX_NBOARDS];
-static struct sx_port *sx_ports;
-static int sx_initialized;
-static int sx_nports;
-static int sx_debug;
-
-/* You can have the driver poll your card.
- - Set sx_poll to 1 to poll every timer tick (10ms on Intel).
- This is used when the card cannot use an interrupt for some reason.
-
- - set sx_slowpoll to 100 to do an extra poll once a second (on Intel). If
- the driver misses an interrupt (report this if it DOES happen to you!)
- everything will continue to work....
- */
-static int sx_poll = 1;
-static int sx_slowpoll;
-
-/* The card limits the number of interrupts per second.
- At 115k2 "100" should be sufficient.
- If you're using higher baudrates, you can increase this...
- */
-
-static int sx_maxints = 100;
-
-#ifdef CONFIG_ISA
-
-/* These are the only open spaces in my computer. Yours may have more
- or less.... -- REW
- duh: Card at 0xa0000 is possible on HP Netserver?? -- pvdl
-*/
-static int sx_probe_addrs[] = {
- 0xc0000, 0xd0000, 0xe0000,
- 0xc8000, 0xd8000, 0xe8000
-};
-static int si_probe_addrs[] = {
- 0xc0000, 0xd0000, 0xe0000,
- 0xc8000, 0xd8000, 0xe8000, 0xa0000
-};
-static int si1_probe_addrs[] = {
- 0xd0000
-};
-
-#define NR_SX_ADDRS ARRAY_SIZE(sx_probe_addrs)
-#define NR_SI_ADDRS ARRAY_SIZE(si_probe_addrs)
-#define NR_SI1_ADDRS ARRAY_SIZE(si1_probe_addrs)
-
-module_param_array(sx_probe_addrs, int, NULL, 0);
-module_param_array(si_probe_addrs, int, NULL, 0);
-#endif
-
-/* Set the mask to all-ones. This alas, only supports 32 interrupts.
- Some architectures may need more. */
-static int sx_irqmask = -1;
-
-module_param(sx_poll, int, 0);
-module_param(sx_slowpoll, int, 0);
-module_param(sx_maxints, int, 0);
-module_param(sx_debug, int, 0);
-module_param(sx_irqmask, int, 0);
-
-MODULE_LICENSE("GPL");
-
-static struct real_driver sx_real_driver = {
- sx_disable_tx_interrupts,
- sx_enable_tx_interrupts,
- sx_disable_rx_interrupts,
- sx_enable_rx_interrupts,
- sx_shutdown_port,
- sx_set_real_termios,
- sx_chars_in_buffer,
- sx_close,
-};
-
-/*
- This driver can spew a whole lot of debugging output at you. If you
- need maximum performance, you should disable the DEBUG define. To
- aid in debugging in the field, I'm leaving the compile-time debug
- features enabled, and disable them "runtime". That allows me to
- instruct people with problems to enable debugging without requiring
- them to recompile...
-*/
-#define DEBUG
-
-#ifdef DEBUG
-#define sx_dprintk(f, str...) if (sx_debug & f) printk (str)
-#else
-#define sx_dprintk(f, str...) /* nothing */
-#endif
-
-#define func_enter() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s\n",__func__)
-#define func_exit() sx_dprintk(SX_DEBUG_FLOW, "sx: exit %s\n",__func__)
-
-#define func_enter2() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s (port %d)\n", \
- __func__, port->line)
-
-/*
- * Firmware loader driver specific routines
- *
- */
-
-static const struct file_operations sx_fw_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = sx_fw_ioctl,
- .llseek = noop_llseek,
-};
-
-static struct miscdevice sx_fw_device = {
- SXCTL_MISC_MINOR, "sxctl", &sx_fw_fops
-};
-
-#ifdef SX_PARANOIA_CHECK
-
-/* This doesn't work. Who's paranoid around here? Not me! */
-
-static inline int sx_paranoia_check(struct sx_port const *port,
- char *name, const char *routine)
-{
- static const char *badmagic = KERN_ERR "sx: Warning: bad sx port magic "
- "number for device %s in %s\n";
- static const char *badinfo = KERN_ERR "sx: Warning: null sx port for "
- "device %s in %s\n";
-
- if (!port) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (port->magic != SX_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-
- return 0;
-}
-#else
-#define sx_paranoia_check(a,b,c) 0
-#endif
-
-/* The timeouts. First try 30 times as fast as possible. Then give
- the card some time to breathe between accesses. (Otherwise the
- processor on the card might not be able to access its OWN bus... */
-
-#define TIMEOUT_1 30
-#define TIMEOUT_2 1000000
-
-#ifdef DEBUG
-static void my_hd_io(void __iomem *p, int len)
-{
- int i, j, ch;
- unsigned char __iomem *addr = p;
-
- for (i = 0; i < len; i += 16) {
- printk("%p ", addr + i);
- for (j = 0; j < 16; j++) {
- printk("%02x %s", readb(addr + j + i),
- (j == 7) ? " " : "");
- }
- for (j = 0; j < 16; j++) {
- ch = readb(addr + j + i);
- printk("%c", (ch < 0x20) ? '.' :
- ((ch > 0x7f) ? '.' : ch));
- }
- printk("\n");
- }
-}
-static void my_hd(void *p, int len)
-{
- int i, j, ch;
- unsigned char *addr = p;
-
- for (i = 0; i < len; i += 16) {
- printk("%p ", addr + i);
- for (j = 0; j < 16; j++) {
- printk("%02x %s", addr[j + i], (j == 7) ? " " : "");
- }
- for (j = 0; j < 16; j++) {
- ch = addr[j + i];
- printk("%c", (ch < 0x20) ? '.' :
- ((ch > 0x7f) ? '.' : ch));
- }
- printk("\n");
- }
-}
-#endif
-
-/* This needs redoing for Alpha -- REW -- Done. */
-
-static inline void write_sx_byte(struct sx_board *board, int offset, u8 byte)
-{
- writeb(byte, board->base + offset);
-}
-
-static inline u8 read_sx_byte(struct sx_board *board, int offset)
-{
- return readb(board->base + offset);
-}
-
-static inline void write_sx_word(struct sx_board *board, int offset, u16 word)
-{
- writew(word, board->base + offset);
-}
-
-static inline u16 read_sx_word(struct sx_board *board, int offset)
-{
- return readw(board->base + offset);
-}
-
-static int sx_busy_wait_eq(struct sx_board *board,
- int offset, int mask, int correctval)
-{
- int i;
-
- func_enter();
-
- for (i = 0; i < TIMEOUT_1; i++)
- if ((read_sx_byte(board, offset) & mask) == correctval) {
- func_exit();
- return 1;
- }
-
- for (i = 0; i < TIMEOUT_2; i++) {
- if ((read_sx_byte(board, offset) & mask) == correctval) {
- func_exit();
- return 1;
- }
- udelay(1);
- }
-
- func_exit();
- return 0;
-}
-
-static int sx_busy_wait_neq(struct sx_board *board,
- int offset, int mask, int badval)
-{
- int i;
-
- func_enter();
-
- for (i = 0; i < TIMEOUT_1; i++)
- if ((read_sx_byte(board, offset) & mask) != badval) {
- func_exit();
- return 1;
- }
-
- for (i = 0; i < TIMEOUT_2; i++) {
- if ((read_sx_byte(board, offset) & mask) != badval) {
- func_exit();
- return 1;
- }
- udelay(1);
- }
-
- func_exit();
- return 0;
-}
-
-/* 5.6.4 of 6210028 r2.3 */
-static int sx_reset(struct sx_board *board)
-{
- func_enter();
-
- if (IS_SX_BOARD(board)) {
-
- write_sx_byte(board, SX_CONFIG, 0);
- write_sx_byte(board, SX_RESET, 1); /* Value doesn't matter */
-
- if (!sx_busy_wait_eq(board, SX_RESET_STATUS, 1, 0)) {
- printk(KERN_INFO "sx: Card doesn't respond to "
- "reset...\n");
- return 0;
- }
- } else if (IS_EISA_BOARD(board)) {
- outb(board->irq << 4, board->eisa_base + 0xc02);
- } else if (IS_SI1_BOARD(board)) {
- write_sx_byte(board, SI1_ISA_RESET, 0); /*value doesn't matter*/
- } else {
- /* Gory details of the SI/ISA board */
- write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_SET);
- write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_CLEAR);
- write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_CLEAR);
- write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_CLEAR);
- write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_CLEAR);
- write_sx_byte(board, SI2_ISA_IRQSET, SI2_ISA_IRQSET_CLEAR);
- }
-
- func_exit();
- return 1;
-}
-
-/* This doesn't work on machines where "NULL" isn't 0 */
-/* If you have one of those, someone will need to write
- the equivalent of this, which will amount to about 3 lines. I don't
- want to complicate this right now. -- REW
- (See, I do write comments every now and then :-) */
-#define OFFSETOF(strct, elem) ((long)&(((struct strct *)NULL)->elem))
-
-#define CHAN_OFFSET(port,elem) (port->ch_base + OFFSETOF (_SXCHANNEL, elem))
-#define MODU_OFFSET(board,addr,elem) (addr + OFFSETOF (_SXMODULE, elem))
-#define BRD_OFFSET(board,elem) (OFFSETOF (_SXCARD, elem))
-
-#define sx_write_channel_byte(port, elem, val) \
- write_sx_byte (port->board, CHAN_OFFSET (port, elem), val)
-
-#define sx_read_channel_byte(port, elem) \
- read_sx_byte (port->board, CHAN_OFFSET (port, elem))
-
-#define sx_write_channel_word(port, elem, val) \
- write_sx_word (port->board, CHAN_OFFSET (port, elem), val)
-
-#define sx_read_channel_word(port, elem) \
- read_sx_word (port->board, CHAN_OFFSET (port, elem))
-
-#define sx_write_module_byte(board, addr, elem, val) \
- write_sx_byte (board, MODU_OFFSET (board, addr, elem), val)
-
-#define sx_read_module_byte(board, addr, elem) \
- read_sx_byte (board, MODU_OFFSET (board, addr, elem))
-
-#define sx_write_module_word(board, addr, elem, val) \
- write_sx_word (board, MODU_OFFSET (board, addr, elem), val)
-
-#define sx_read_module_word(board, addr, elem) \
- read_sx_word (board, MODU_OFFSET (board, addr, elem))
-
-#define sx_write_board_byte(board, elem, val) \
- write_sx_byte (board, BRD_OFFSET (board, elem), val)
-
-#define sx_read_board_byte(board, elem) \
- read_sx_byte (board, BRD_OFFSET (board, elem))
-
-#define sx_write_board_word(board, elem, val) \
- write_sx_word (board, BRD_OFFSET (board, elem), val)
-
-#define sx_read_board_word(board, elem) \
- read_sx_word (board, BRD_OFFSET (board, elem))
-
-static int sx_start_board(struct sx_board *board)
-{
- if (IS_SX_BOARD(board)) {
- write_sx_byte(board, SX_CONFIG, SX_CONF_BUSEN);
- } else if (IS_EISA_BOARD(board)) {
- write_sx_byte(board, SI2_EISA_OFF, SI2_EISA_VAL);
- outb((board->irq << 4) | 4, board->eisa_base + 0xc02);
- } else if (IS_SI1_BOARD(board)) {
- write_sx_byte(board, SI1_ISA_RESET_CLEAR, 0);
- write_sx_byte(board, SI1_ISA_INTCL, 0);
- } else {
- /* Don't bug me about the clear_set.
- I haven't the foggiest idea what it's about -- REW */
- write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_CLEAR);
- write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET);
- }
- return 1;
-}
-
-#define SX_IRQ_REG_VAL(board) \
- ((board->flags & SX_ISA_BOARD) ? (board->irq << 4) : 0)
-
-/* Note. The SX register is write-only. Therefore, we have to enable the
- bus too. This is a no-op, if you don't mess with this driver... */
-static int sx_start_interrupts(struct sx_board *board)
-{
-
- /* Don't call this with board->irq == 0 */
-
- if (IS_SX_BOARD(board)) {
- write_sx_byte(board, SX_CONFIG, SX_IRQ_REG_VAL(board) |
- SX_CONF_BUSEN | SX_CONF_HOSTIRQ);
- } else if (IS_EISA_BOARD(board)) {
- inb(board->eisa_base + 0xc03);
- } else if (IS_SI1_BOARD(board)) {
- write_sx_byte(board, SI1_ISA_INTCL, 0);
- write_sx_byte(board, SI1_ISA_INTCL_CLEAR, 0);
- } else {
- switch (board->irq) {
- case 11:
- write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_SET);
- break;
- case 12:
- write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_SET);
- break;
- case 15:
- write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_SET);
- break;
- default:
- printk(KERN_INFO "sx: SI/XIO card doesn't support "
- "interrupt %d.\n", board->irq);
- return 0;
- }
- write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET);
- }
-
- return 1;
-}
-
-static int sx_send_command(struct sx_port *port,
- int command, int mask, int newstat)
-{
- func_enter2();
- write_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat), command);
- func_exit();
- return sx_busy_wait_eq(port->board, CHAN_OFFSET(port, hi_hstat), mask,
- newstat);
-}
-
-static char *mod_type_s(int module_type)
-{
- switch (module_type) {
- case TA4:
- return "TA4";
- case TA8:
- return "TA8";
- case TA4_ASIC:
- return "TA4_ASIC";
- case TA8_ASIC:
- return "TA8_ASIC";
- case MTA_CD1400:
- return "MTA_CD1400";
- case SXDC:
- return "SXDC";
- default:
- return "Unknown/invalid";
- }
-}
-
-static char *pan_type_s(int pan_type)
-{
- switch (pan_type) {
- case MOD_RS232DB25:
- return "MOD_RS232DB25";
- case MOD_RS232RJ45:
- return "MOD_RS232RJ45";
- case MOD_RS422DB25:
- return "MOD_RS422DB25";
- case MOD_PARALLEL:
- return "MOD_PARALLEL";
- case MOD_2_RS232DB25:
- return "MOD_2_RS232DB25";
- case MOD_2_RS232RJ45:
- return "MOD_2_RS232RJ45";
- case MOD_2_RS422DB25:
- return "MOD_2_RS422DB25";
- case MOD_RS232DB25MALE:
- return "MOD_RS232DB25MALE";
- case MOD_2_PARALLEL:
- return "MOD_2_PARALLEL";
- case MOD_BLANK:
- return "empty";
- default:
- return "invalid";
- }
-}
-
-static int mod_compat_type(int module_type)
-{
- return module_type >> 4;
-}
-
-static void sx_reconfigure_port(struct sx_port *port)
-{
- if (sx_read_channel_byte(port, hi_hstat) == HS_IDLE_OPEN) {
- if (sx_send_command(port, HS_CONFIG, -1, HS_IDLE_OPEN) != 1) {
- printk(KERN_WARNING "sx: Sent reconfigure command, but "
- "card didn't react.\n");
- }
- } else {
- sx_dprintk(SX_DEBUG_TERMIOS, "sx: Not sending reconfigure: "
- "port isn't open (%02x).\n",
- sx_read_channel_byte(port, hi_hstat));
- }
-}
-
-static void sx_setsignals(struct sx_port *port, int dtr, int rts)
-{
- int t;
- func_enter2();
-
- t = sx_read_channel_byte(port, hi_op);
- if (dtr >= 0)
- t = dtr ? (t | OP_DTR) : (t & ~OP_DTR);
- if (rts >= 0)
- t = rts ? (t | OP_RTS) : (t & ~OP_RTS);
- sx_write_channel_byte(port, hi_op, t);
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "setsignals: %d/%d\n", dtr, rts);
-
- func_exit();
-}
-
-static int sx_getsignals(struct sx_port *port)
-{
- int i_stat, o_stat;
-
- o_stat = sx_read_channel_byte(port, hi_op);
- i_stat = sx_read_channel_byte(port, hi_ip);
-
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "getsignals: %d/%d (%d/%d) "
- "%02x/%02x\n",
- (o_stat & OP_DTR) != 0, (o_stat & OP_RTS) != 0,
- port->c_dcd, tty_port_carrier_raised(&port->gs.port),
- sx_read_channel_byte(port, hi_ip),
- sx_read_channel_byte(port, hi_state));
-
- return (((o_stat & OP_DTR) ? TIOCM_DTR : 0) |
- ((o_stat & OP_RTS) ? TIOCM_RTS : 0) |
- ((i_stat & IP_CTS) ? TIOCM_CTS : 0) |
- ((i_stat & IP_DCD) ? TIOCM_CAR : 0) |
- ((i_stat & IP_DSR) ? TIOCM_DSR : 0) |
- ((i_stat & IP_RI) ? TIOCM_RNG : 0));
-}
-
-static void sx_set_baud(struct sx_port *port)
-{
- int t;
-
- if (port->board->ta_type == MOD_SXDC) {
- switch (port->gs.baud) {
- /* Save some typing work... */
-#define e(x) case x: t = BAUD_ ## x; break
- e(50);
- e(75);
- e(110);
- e(150);
- e(200);
- e(300);
- e(600);
- e(1200);
- e(1800);
- e(2000);
- e(2400);
- e(4800);
- e(7200);
- e(9600);
- e(14400);
- e(19200);
- e(28800);
- e(38400);
- e(56000);
- e(57600);
- e(64000);
- e(76800);
- e(115200);
- e(128000);
- e(150000);
- e(230400);
- e(256000);
- e(460800);
- e(921600);
- case 134:
- t = BAUD_134_5;
- break;
- case 0:
- t = -1;
- break;
- default:
- /* Can I return "invalid"? */
- t = BAUD_9600;
- printk(KERN_INFO "sx: unsupported baud rate: %d.\n",
- port->gs.baud);
- break;
- }
-#undef e
- if (t > 0) {
-/* The baud rate is not set to 0, so we're enabeling DTR... -- REW */
- sx_setsignals(port, 1, -1);
- /* XXX This is not TA & MTA compatible */
- sx_write_channel_byte(port, hi_csr, 0xff);
-
- sx_write_channel_byte(port, hi_txbaud, t);
- sx_write_channel_byte(port, hi_rxbaud, t);
- } else {
- sx_setsignals(port, 0, -1);
- }
- } else {
- switch (port->gs.baud) {
-#define e(x) case x: t = CSR_ ## x; break
- e(75);
- e(150);
- e(300);
- e(600);
- e(1200);
- e(2400);
- e(4800);
- e(1800);
- e(9600);
- e(19200);
- e(57600);
- e(38400);
-/* TA supports 110, but not 115200, MTA supports 115200, but not 110 */
- case 110:
- if (port->board->ta_type == MOD_TA) {
- t = CSR_110;
- break;
- } else {
- t = CSR_9600;
- printk(KERN_INFO "sx: Unsupported baud rate: "
- "%d.\n", port->gs.baud);
- break;
- }
- case 115200:
- if (port->board->ta_type == MOD_TA) {
- t = CSR_9600;
- printk(KERN_INFO "sx: Unsupported baud rate: "
- "%d.\n", port->gs.baud);
- break;
- } else {
- t = CSR_110;
- break;
- }
- case 0:
- t = -1;
- break;
- default:
- t = CSR_9600;
- printk(KERN_INFO "sx: Unsupported baud rate: %d.\n",
- port->gs.baud);
- break;
- }
-#undef e
- if (t >= 0) {
- sx_setsignals(port, 1, -1);
- sx_write_channel_byte(port, hi_csr, t * 0x11);
- } else {
- sx_setsignals(port, 0, -1);
- }
- }
-}
-
-/* Simon Allen's version of this routine was 225 lines long. 85 is a lot
- better. -- REW */
-
-static int sx_set_real_termios(void *ptr)
-{
- struct sx_port *port = ptr;
-
- func_enter2();
-
- if (!port->gs.port.tty)
- return 0;
-
- /* What is this doing here? -- REW
- Ha! figured it out. It is to allow you to get DTR active again
- if you've dropped it with stty 0. Moved to set_baud, where it
- belongs (next to the drop dtr if baud == 0) -- REW */
- /* sx_setsignals (port, 1, -1); */
-
- sx_set_baud(port);
-
-#define CFLAG port->gs.port.tty->termios->c_cflag
- sx_write_channel_byte(port, hi_mr1,
- (C_PARENB(port->gs.port.tty) ? MR1_WITH : MR1_NONE) |
- (C_PARODD(port->gs.port.tty) ? MR1_ODD : MR1_EVEN) |
- (C_CRTSCTS(port->gs.port.tty) ? MR1_RTS_RXFLOW : 0) |
- (((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) |
- (((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) |
- (((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) |
- (((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0));
-
- sx_write_channel_byte(port, hi_mr2,
- (C_CRTSCTS(port->gs.port.tty) ? MR2_CTS_TXFLOW : 0) |
- (C_CSTOPB(port->gs.port.tty) ? MR2_2_STOP :
- MR2_1_STOP));
-
- switch (CFLAG & CSIZE) {
- case CS8:
- sx_write_channel_byte(port, hi_mask, 0xff);
- break;
- case CS7:
- sx_write_channel_byte(port, hi_mask, 0x7f);
- break;
- case CS6:
- sx_write_channel_byte(port, hi_mask, 0x3f);
- break;
- case CS5:
- sx_write_channel_byte(port, hi_mask, 0x1f);
- break;
- default:
- printk(KERN_INFO "sx: Invalid wordsize: %u\n",
- (unsigned int)CFLAG & CSIZE);
- break;
- }
-
- sx_write_channel_byte(port, hi_prtcl,
- (I_IXON(port->gs.port.tty) ? SP_TXEN : 0) |
- (I_IXOFF(port->gs.port.tty) ? SP_RXEN : 0) |
- (I_IXANY(port->gs.port.tty) ? SP_TANY : 0) | SP_DCEN);
-
- sx_write_channel_byte(port, hi_break,
- (I_IGNBRK(port->gs.port.tty) ? BR_IGN : 0 |
- I_BRKINT(port->gs.port.tty) ? BR_INT : 0));
-
- sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.port.tty));
- sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.port.tty));
- sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.port.tty));
- sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.port.tty));
-
- sx_reconfigure_port(port);
-
- /* Tell line discipline whether we will do input cooking */
- if (I_OTHER(port->gs.port.tty)) {
- clear_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
- } else {
- set_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
- }
- sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ",
- (unsigned int)port->gs.port.tty->termios->c_iflag,
- I_OTHER(port->gs.port.tty));
-
-/* Tell line discipline whether we will do output cooking.
- * If OPOST is set and no other output flags are set then we can do output
- * processing. Even if only *one* other flag in the O_OTHER group is set
- * we do cooking in software.
- */
- if (O_OPOST(port->gs.port.tty) && !O_OTHER(port->gs.port.tty)) {
- set_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
- } else {
- clear_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
- }
- sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n",
- (unsigned int)port->gs.port.tty->termios->c_oflag,
- O_OTHER(port->gs.port.tty));
- /* port->c_dcd = sx_get_CD (port); */
- func_exit();
- return 0;
-}
-
-/* ********************************************************************** *
- * the interrupt related routines *
- * ********************************************************************** */
-
-/* Note:
- Other drivers use the macro "MIN" to calculate how much to copy.
- This has the disadvantage that it will evaluate parts twice. That's
- expensive when it's IO (and the compiler cannot optimize those away!).
- Moreover, I'm not sure that you're race-free.
-
- I assign a value, and then only allow the value to decrease. This
- is always safe. This makes the code a few lines longer, and you
- know I'm dead against that, but I think it is required in this
- case. */
-
-static void sx_transmit_chars(struct sx_port *port)
-{
- int c;
- int tx_ip;
- int txroom;
-
- func_enter2();
- sx_dprintk(SX_DEBUG_TRANSMIT, "Port %p: transmit %d chars\n",
- port, port->gs.xmit_cnt);
-
- if (test_and_set_bit(SX_PORT_TRANSMIT_LOCK, &port->locks)) {
- return;
- }
-
- while (1) {
- c = port->gs.xmit_cnt;
-
- sx_dprintk(SX_DEBUG_TRANSMIT, "Copying %d ", c);
- tx_ip = sx_read_channel_byte(port, hi_txipos);
-
- /* Took me 5 minutes to deduce this formula.
- Luckily it is literally in the manual in section 6.5.4.3.5 */
- txroom = (sx_read_channel_byte(port, hi_txopos) - tx_ip - 1) &
- 0xff;
-
- /* Don't copy more bytes than there is room for in the buffer */
- if (c > txroom)
- c = txroom;
- sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, txroom);
-
- /* Don't copy past the end of the hardware transmit buffer */
- if (c > 0x100 - tx_ip)
- c = 0x100 - tx_ip;
-
- sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, 0x100 - tx_ip);
-
- /* Don't copy pas the end of the source buffer */
- if (c > SERIAL_XMIT_SIZE - port->gs.xmit_tail)
- c = SERIAL_XMIT_SIZE - port->gs.xmit_tail;
-
- sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%ld) \n",
- c, SERIAL_XMIT_SIZE - port->gs.xmit_tail);
-
- /* If for one reason or another, we can't copy more data, we're
- done! */
- if (c == 0)
- break;
-
- memcpy_toio(port->board->base + CHAN_OFFSET(port, hi_txbuf) +
- tx_ip, port->gs.xmit_buf + port->gs.xmit_tail, c);
-
- /* Update the pointer in the card */
- sx_write_channel_byte(port, hi_txipos, (tx_ip + c) & 0xff);
-
- /* Update the kernel buffer end */
- port->gs.xmit_tail = (port->gs.xmit_tail + c) &
- (SERIAL_XMIT_SIZE - 1);
-
- /* This one last. (this is essential)
- It would allow others to start putting more data into the
- buffer! */
- port->gs.xmit_cnt -= c;
- }
-
- if (port->gs.xmit_cnt == 0) {
- sx_disable_tx_interrupts(port);
- }
-
- if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) {
- tty_wakeup(port->gs.port.tty);
- sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n",
- port->gs.wakeup_chars);
- }
-
- clear_bit(SX_PORT_TRANSMIT_LOCK, &port->locks);
- func_exit();
-}
-
-/* Note the symmetry between receiving chars and transmitting them!
- Note: The kernel should have implemented both a receive buffer and
- a transmit buffer. */
-
-/* Inlined: Called only once. Remove the inline when you add another call */
-static inline void sx_receive_chars(struct sx_port *port)
-{
- int c;
- int rx_op;
- struct tty_struct *tty;
- int copied = 0;
- unsigned char *rp;
-
- func_enter2();
- tty = port->gs.port.tty;
- while (1) {
- rx_op = sx_read_channel_byte(port, hi_rxopos);
- c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff;
-
- sx_dprintk(SX_DEBUG_RECEIVE, "rxop=%d, c = %d.\n", rx_op, c);
-
- /* Don't copy past the end of the hardware receive buffer */
- if (rx_op + c > 0x100)
- c = 0x100 - rx_op;
-
- sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c);
-
- /* Don't copy more bytes than there is room for in the buffer */
-
- c = tty_prepare_flip_string(tty, &rp, c);
-
- sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c);
-
- /* If for one reason or another, we can't copy more data, we're done! */
- if (c == 0)
- break;
-
- sx_dprintk(SX_DEBUG_RECEIVE, "Copying over %d chars. First is "
- "%d at %lx\n", c, read_sx_byte(port->board,
- CHAN_OFFSET(port, hi_rxbuf) + rx_op),
- CHAN_OFFSET(port, hi_rxbuf));
- memcpy_fromio(rp, port->board->base +
- CHAN_OFFSET(port, hi_rxbuf) + rx_op, c);
-
- /* This one last. ( Not essential.)
- It allows the card to start putting more data into the
- buffer!
- Update the pointer in the card */
- sx_write_channel_byte(port, hi_rxopos, (rx_op + c) & 0xff);
-
- copied += c;
- }
- if (copied) {
- struct timeval tv;
-
- do_gettimeofday(&tv);
- sx_dprintk(SX_DEBUG_RECEIVE, "pushing flipq port %d (%3d "
- "chars): %d.%06d (%d/%d)\n", port->line,
- copied, (int)(tv.tv_sec % 60), (int)tv.tv_usec,
- tty->raw, tty->real_raw);
-
- /* Tell the rest of the system the news. Great news. New
- characters! */
- tty_flip_buffer_push(tty);
- /* tty_schedule_flip (tty); */
- }
-
- func_exit();
-}
-
-/* Inlined: it is called only once. Remove the inline if you add another
- call */
-static inline void sx_check_modem_signals(struct sx_port *port)
-{
- int hi_state;
- int c_dcd;
-
- hi_state = sx_read_channel_byte(port, hi_state);
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Checking modem signals (%d/%d)\n",
- port->c_dcd, tty_port_carrier_raised(&port->gs.port));
-
- if (hi_state & ST_BREAK) {
- hi_state &= ~ST_BREAK;
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a break.\n");
- sx_write_channel_byte(port, hi_state, hi_state);
- gs_got_break(&port->gs);
- }
- if (hi_state & ST_DCD) {
- hi_state &= ~ST_DCD;
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a DCD change.\n");
- sx_write_channel_byte(port, hi_state, hi_state);
- c_dcd = tty_port_carrier_raised(&port->gs.port);
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD is now %d\n", c_dcd);
- if (c_dcd != port->c_dcd) {
- port->c_dcd = c_dcd;
- if (tty_port_carrier_raised(&port->gs.port)) {
- /* DCD went UP */
- if ((sx_read_channel_byte(port, hi_hstat) !=
- HS_IDLE_CLOSED) &&
- !(port->gs.port.tty->termios->
- c_cflag & CLOCAL)) {
- /* Are we blocking in open? */
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "active, unblocking open\n");
- wake_up_interruptible(&port->gs.port.
- open_wait);
- } else {
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "raised. Ignoring.\n");
- }
- } else {
- /* DCD went down! */
- if (!(port->gs.port.tty->termios->c_cflag & CLOCAL)){
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "dropped. hanging up....\n");
- tty_hangup(port->gs.port.tty);
- } else {
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "dropped. ignoring.\n");
- }
- }
- } else {
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Hmmm. card told us "
- "DCD changed, but it didn't.\n");
- }
- }
-}
-
-/* This is what an interrupt routine should look like.
- * Small, elegant, clear.
- */
-
-static irqreturn_t sx_interrupt(int irq, void *ptr)
-{
- struct sx_board *board = ptr;
- struct sx_port *port;
- int i;
-
- func_enter();
- sx_dprintk(SX_DEBUG_FLOW, "sx: enter sx_interrupt (%d/%d)\n", irq,
- board->irq);
-
- /* AAargh! The order in which to do these things is essential and
- not trivial.
-
- - Rate limit goes before "recursive". Otherwise a series of
- recursive calls will hang the machine in the interrupt routine.
-
- - hardware twiddling goes before "recursive". Otherwise when we
- poll the card, and a recursive interrupt happens, we won't
- ack the card, so it might keep on interrupting us. (especially
- level sensitive interrupt systems like PCI).
-
- - Rate limit goes before hardware twiddling. Otherwise we won't
- catch a card that has gone bonkers.
-
- - The "initialized" test goes after the hardware twiddling. Otherwise
- the card will stick us in the interrupt routine again.
-
- - The initialized test goes before recursive.
- */
-
-#ifdef IRQ_RATE_LIMIT
- /* Aaargh! I'm ashamed. This costs more lines-of-code than the
- actual interrupt routine!. (Well, used to when I wrote that
- comment) */
- {
- static int lastjif;
- static int nintr = 0;
-
- if (lastjif == jiffies) {
- if (++nintr > IRQ_RATE_LIMIT) {
- free_irq(board->irq, board);
- printk(KERN_ERR "sx: Too many interrupts. "
- "Turning off interrupt %d.\n",
- board->irq);
- }
- } else {
- lastjif = jiffies;
- nintr = 0;
- }
- }
-#endif
-
- if (board->irq == irq) {
- /* Tell the card we've noticed the interrupt. */
-
- sx_write_board_word(board, cc_int_pending, 0);
- if (IS_SX_BOARD(board)) {
- write_sx_byte(board, SX_RESET_IRQ, 1);
- } else if (IS_EISA_BOARD(board)) {
- inb(board->eisa_base + 0xc03);
- write_sx_word(board, 8, 0);
- } else {
- write_sx_byte(board, SI2_ISA_INTCLEAR,
- SI2_ISA_INTCLEAR_CLEAR);
- write_sx_byte(board, SI2_ISA_INTCLEAR,
- SI2_ISA_INTCLEAR_SET);
- }
- }
-
- if (!sx_initialized)
- return IRQ_HANDLED;
- if (!(board->flags & SX_BOARD_INITIALIZED))
- return IRQ_HANDLED;
-
- if (test_and_set_bit(SX_BOARD_INTR_LOCK, &board->locks)) {
- printk(KERN_ERR "Recursive interrupt! (%d)\n", board->irq);
- return IRQ_HANDLED;
- }
-
- for (i = 0; i < board->nports; i++) {
- port = &board->ports[i];
- if (port->gs.port.flags & GS_ACTIVE) {
- if (sx_read_channel_byte(port, hi_state)) {
- sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: "
- "modem signal change?... \n",i);
- sx_check_modem_signals(port);
- }
- if (port->gs.xmit_cnt) {
- sx_transmit_chars(port);
- }
- if (!(port->gs.port.flags & SX_RX_THROTTLE)) {
- sx_receive_chars(port);
- }
- }
- }
-
- clear_bit(SX_BOARD_INTR_LOCK, &board->locks);
-
- sx_dprintk(SX_DEBUG_FLOW, "sx: exit sx_interrupt (%d/%d)\n", irq,
- board->irq);
- func_exit();
- return IRQ_HANDLED;
-}
-
-static void sx_pollfunc(unsigned long data)
-{
- struct sx_board *board = (struct sx_board *)data;
-
- func_enter();
-
- sx_interrupt(0, board);
-
- mod_timer(&board->timer, jiffies + sx_poll);
- func_exit();
-}
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the generic_serial driver *
- * ********************************************************************** */
-
-/* Ehhm. I don't know how to fiddle with interrupts on the SX card. --REW */
-/* Hmm. Ok I figured it out. You don't. */
-
-static void sx_disable_tx_interrupts(void *ptr)
-{
- struct sx_port *port = ptr;
- func_enter2();
-
- port->gs.port.flags &= ~GS_TX_INTEN;
-
- func_exit();
-}
-
-static void sx_enable_tx_interrupts(void *ptr)
-{
- struct sx_port *port = ptr;
- int data_in_buffer;
- func_enter2();
-
- /* First transmit the characters that we're supposed to */
- sx_transmit_chars(port);
-
- /* The sx card will never interrupt us if we don't fill the buffer
- past 25%. So we keep considering interrupts off if that's the case. */
- data_in_buffer = (sx_read_channel_byte(port, hi_txipos) -
- sx_read_channel_byte(port, hi_txopos)) & 0xff;
-
- /* XXX Must be "HIGH_WATER" for SI card according to doc. */
- if (data_in_buffer < LOW_WATER)
- port->gs.port.flags &= ~GS_TX_INTEN;
-
- func_exit();
-}
-
-static void sx_disable_rx_interrupts(void *ptr)
-{
- /* struct sx_port *port = ptr; */
- func_enter();
-
- func_exit();
-}
-
-static void sx_enable_rx_interrupts(void *ptr)
-{
- /* struct sx_port *port = ptr; */
- func_enter();
-
- func_exit();
-}
-
-/* Jeez. Isn't this simple? */
-static int sx_carrier_raised(struct tty_port *port)
-{
- struct sx_port *sp = container_of(port, struct sx_port, gs.port);
- return ((sx_read_channel_byte(sp, hi_ip) & IP_DCD) != 0);
-}
-
-/* Jeez. Isn't this simple? */
-static int sx_chars_in_buffer(void *ptr)
-{
- struct sx_port *port = ptr;
- func_enter2();
-
- func_exit();
- return ((sx_read_channel_byte(port, hi_txipos) -
- sx_read_channel_byte(port, hi_txopos)) & 0xff);
-}
-
-static void sx_shutdown_port(void *ptr)
-{
- struct sx_port *port = ptr;
-
- func_enter();
-
- port->gs.port.flags &= ~GS_ACTIVE;
- if (port->gs.port.tty && (port->gs.port.tty->termios->c_cflag & HUPCL)) {
- sx_setsignals(port, 0, 0);
- sx_reconfigure_port(port);
- }
-
- func_exit();
-}
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the rest of the system *
- * ********************************************************************** */
-
-static int sx_open(struct tty_struct *tty, struct file *filp)
-{
- struct sx_port *port;
- int retval, line;
- unsigned long flags;
-
- func_enter();
-
- if (!sx_initialized) {
- return -EIO;
- }
-
- line = tty->index;
- sx_dprintk(SX_DEBUG_OPEN, "%d: opening line %d. tty=%p ctty=%p, "
- "np=%d)\n", task_pid_nr(current), line, tty,
- current->signal->tty, sx_nports);
-
- if ((line < 0) || (line >= SX_NPORTS) || (line >= sx_nports))
- return -ENODEV;
-
- port = &sx_ports[line];
- port->c_dcd = 0; /* Make sure that the first interrupt doesn't detect a
- 1 -> 0 transition. */
-
- sx_dprintk(SX_DEBUG_OPEN, "port = %p c_dcd = %d\n", port, port->c_dcd);
-
- spin_lock_irqsave(&port->gs.driver_lock, flags);
-
- tty->driver_data = port;
- port->gs.port.tty = tty;
- port->gs.port.count++;
- spin_unlock_irqrestore(&port->gs.driver_lock, flags);
-
- sx_dprintk(SX_DEBUG_OPEN, "starting port\n");
-
- /*
- * Start up serial port
- */
- retval = gs_init_port(&port->gs);
- sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n");
- if (retval) {
- port->gs.port.count--;
- return retval;
- }
-
- port->gs.port.flags |= GS_ACTIVE;
- if (port->gs.port.count <= 1)
- sx_setsignals(port, 1, 1);
-
-#if 0
- if (sx_debug & SX_DEBUG_OPEN)
- my_hd(port, sizeof(*port));
-#else
- if (sx_debug & SX_DEBUG_OPEN)
- my_hd_io(port->board->base + port->ch_base, sizeof(*port));
-#endif
-
- if (port->gs.port.count <= 1) {
- if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) {
- printk(KERN_ERR "sx: Card didn't respond to LOPEN "
- "command.\n");
- spin_lock_irqsave(&port->gs.driver_lock, flags);
- port->gs.port.count--;
- spin_unlock_irqrestore(&port->gs.driver_lock, flags);
- return -EIO;
- }
- }
-
- retval = gs_block_til_ready(port, filp);
- sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n",
- retval, port->gs.port.count);
-
- if (retval) {
-/*
- * Don't lower gs.port.count here because sx_close() will be called later
- */
-
- return retval;
- }
- /* tty->low_latency = 1; */
-
- port->c_dcd = sx_carrier_raised(&port->gs.port);
- sx_dprintk(SX_DEBUG_OPEN, "at open: cd=%d\n", port->c_dcd);
-
- func_exit();
- return 0;
-
-}
-
-static void sx_close(void *ptr)
-{
- struct sx_port *port = ptr;
- /* Give the port 5 seconds to close down. */
- int to = 5 * HZ;
-
- func_enter();
-
- sx_setsignals(port, 0, 0);
- sx_reconfigure_port(port);
- sx_send_command(port, HS_CLOSE, 0, 0);
-
- while (to-- && (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED))
- if (msleep_interruptible(10))
- break;
- if (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED) {
- if (sx_send_command(port, HS_FORCE_CLOSED, -1, HS_IDLE_CLOSED)
- != 1) {
- printk(KERN_ERR "sx: sent the force_close command, but "
- "card didn't react\n");
- } else
- sx_dprintk(SX_DEBUG_CLOSE, "sent the force_close "
- "command.\n");
- }
-
- sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n",
- 5 * HZ - to - 1, port->gs.port.count);
-
- if (port->gs.port.count) {
- sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n",
- port->gs.port.count);
- /*printk("%s SETTING port count to zero: %p count: %d\n",
- __func__, port, port->gs.port.count);
- port->gs.port.count = 0;*/
- }
-
- func_exit();
-}
-
-/* This is relatively thorough. But then again it is only 20 lines. */
-#define MARCHUP for (i = min; i < max; i++)
-#define MARCHDOWN for (i = max - 1; i >= min; i--)
-#define W0 write_sx_byte(board, i, 0x55)
-#define W1 write_sx_byte(board, i, 0xaa)
-#define R0 if (read_sx_byte(board, i) != 0x55) return 1
-#define R1 if (read_sx_byte(board, i) != 0xaa) return 1
-
-/* This memtest takes a human-noticable time. You normally only do it
- once a boot, so I guess that it is worth it. */
-static int do_memtest(struct sx_board *board, int min, int max)
-{
- int i;
-
- /* This is a marchb. Theoretically, marchb catches much more than
- simpler tests. In practise, the longer test just catches more
- intermittent errors. -- REW
- (For the theory behind memory testing see:
- Testing Semiconductor Memories by A.J. van de Goor.) */
- MARCHUP {
- W0;
- }
- MARCHUP {
- R0;
- W1;
- R1;
- W0;
- R0;
- W1;
- }
- MARCHUP {
- R1;
- W0;
- W1;
- }
- MARCHDOWN {
- R1;
- W0;
- W1;
- W0;
- }
- MARCHDOWN {
- R0;
- W1;
- W0;
- }
-
- return 0;
-}
-
-#undef MARCHUP
-#undef MARCHDOWN
-#undef W0
-#undef W1
-#undef R0
-#undef R1
-
-#define MARCHUP for (i = min; i < max; i += 2)
-#define MARCHDOWN for (i = max - 1; i >= min; i -= 2)
-#define W0 write_sx_word(board, i, 0x55aa)
-#define W1 write_sx_word(board, i, 0xaa55)
-#define R0 if (read_sx_word(board, i) != 0x55aa) return 1
-#define R1 if (read_sx_word(board, i) != 0xaa55) return 1
-
-#if 0
-/* This memtest takes a human-noticable time. You normally only do it
- once a boot, so I guess that it is worth it. */
-static int do_memtest_w(struct sx_board *board, int min, int max)
-{
- int i;
-
- MARCHUP {
- W0;
- }
- MARCHUP {
- R0;
- W1;
- R1;
- W0;
- R0;
- W1;
- }
- MARCHUP {
- R1;
- W0;
- W1;
- }
- MARCHDOWN {
- R1;
- W0;
- W1;
- W0;
- }
- MARCHDOWN {
- R0;
- W1;
- W0;
- }
-
- return 0;
-}
-#endif
-
-static long sx_fw_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- long rc = 0;
- int __user *descr = (int __user *)arg;
- int i;
- static struct sx_board *board = NULL;
- int nbytes, offset;
- unsigned long data;
- char *tmp;
-
- func_enter();
-
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- tty_lock();
-
- sx_dprintk(SX_DEBUG_FIRMWARE, "IOCTL %x: %lx\n", cmd, arg);
-
- if (!board)
- board = &boards[0];
- if (board->flags & SX_BOARD_PRESENT) {
- sx_dprintk(SX_DEBUG_FIRMWARE, "Board present! (%x)\n",
- board->flags);
- } else {
- sx_dprintk(SX_DEBUG_FIRMWARE, "Board not present! (%x) all:",
- board->flags);
- for (i = 0; i < SX_NBOARDS; i++)
- sx_dprintk(SX_DEBUG_FIRMWARE, "<%x> ", boards[i].flags);
- sx_dprintk(SX_DEBUG_FIRMWARE, "\n");
- rc = -EIO;
- goto out;
- }
-
- switch (cmd) {
- case SXIO_SET_BOARD:
- sx_dprintk(SX_DEBUG_FIRMWARE, "set board to %ld\n", arg);
- rc = -EIO;
- if (arg >= SX_NBOARDS)
- break;
- sx_dprintk(SX_DEBUG_FIRMWARE, "not out of range\n");
- if (!(boards[arg].flags & SX_BOARD_PRESENT))
- break;
- sx_dprintk(SX_DEBUG_FIRMWARE, ".. and present!\n");
- board = &boards[arg];
- rc = 0;
- /* FIXME: And this does ... nothing?? */
- break;
- case SXIO_GET_TYPE:
- rc = -ENOENT; /* If we manage to miss one, return error. */
- if (IS_SX_BOARD(board))
- rc = SX_TYPE_SX;
- if (IS_CF_BOARD(board))
- rc = SX_TYPE_CF;
- if (IS_SI_BOARD(board))
- rc = SX_TYPE_SI;
- if (IS_SI1_BOARD(board))
- rc = SX_TYPE_SI;
- if (IS_EISA_BOARD(board))
- rc = SX_TYPE_SI;
- sx_dprintk(SX_DEBUG_FIRMWARE, "returning type= %ld\n", rc);
- break;
- case SXIO_DO_RAMTEST:
- if (sx_initialized) { /* Already initialized: better not ramtest the board. */
- rc = -EPERM;
- break;
- }
- if (IS_SX_BOARD(board)) {
- rc = do_memtest(board, 0, 0x7000);
- if (!rc)
- rc = do_memtest(board, 0, 0x7000);
- /*if (!rc) rc = do_memtest_w (board, 0, 0x7000); */
- } else {
- rc = do_memtest(board, 0, 0x7ff8);
- /* if (!rc) rc = do_memtest_w (board, 0, 0x7ff8); */
- }
- sx_dprintk(SX_DEBUG_FIRMWARE,
- "returning memtest result= %ld\n", rc);
- break;
- case SXIO_DOWNLOAD:
- if (sx_initialized) {/* Already initialized */
- rc = -EEXIST;
- break;
- }
- if (!sx_reset(board)) {
- rc = -EIO;
- break;
- }
- sx_dprintk(SX_DEBUG_INIT, "reset the board...\n");
-
- tmp = kmalloc(SX_CHUNK_SIZE, GFP_USER);
- if (!tmp) {
- rc = -ENOMEM;
- break;
- }
- /* FIXME: check returns */
- get_user(nbytes, descr++);
- get_user(offset, descr++);
- get_user(data, descr++);
- while (nbytes && data) {
- for (i = 0; i < nbytes; i += SX_CHUNK_SIZE) {
- if (copy_from_user(tmp, (char __user *)data + i,
- (i + SX_CHUNK_SIZE > nbytes) ?
- nbytes - i : SX_CHUNK_SIZE)) {
- kfree(tmp);
- rc = -EFAULT;
- goto out;
- }
- memcpy_toio(board->base2 + offset + i, tmp,
- (i + SX_CHUNK_SIZE > nbytes) ?
- nbytes - i : SX_CHUNK_SIZE);
- }
-
- get_user(nbytes, descr++);
- get_user(offset, descr++);
- get_user(data, descr++);
- }
- kfree(tmp);
- sx_nports += sx_init_board(board);
- rc = sx_nports;
- break;
- case SXIO_INIT:
- if (sx_initialized) { /* Already initialized */
- rc = -EEXIST;
- break;
- }
- /* This is not allowed until all boards are initialized... */
- for (i = 0; i < SX_NBOARDS; i++) {
- if ((boards[i].flags & SX_BOARD_PRESENT) &&
- !(boards[i].flags & SX_BOARD_INITIALIZED)) {
- rc = -EIO;
- break;
- }
- }
- for (i = 0; i < SX_NBOARDS; i++)
- if (!(boards[i].flags & SX_BOARD_PRESENT))
- break;
-
- sx_dprintk(SX_DEBUG_FIRMWARE, "initing portstructs, %d boards, "
- "%d channels, first board: %d ports\n",
- i, sx_nports, boards[0].nports);
- rc = sx_init_portstructs(i, sx_nports);
- sx_init_drivers();
- if (rc >= 0)
- sx_initialized++;
- break;
- case SXIO_SETDEBUG:
- sx_debug = arg;
- break;
- case SXIO_GETDEBUG:
- rc = sx_debug;
- break;
- case SXIO_GETGSDEBUG:
- case SXIO_SETGSDEBUG:
- rc = -EINVAL;
- break;
- case SXIO_GETNPORTS:
- rc = sx_nports;
- break;
- default:
- rc = -ENOTTY;
- break;
- }
-out:
- tty_unlock();
- func_exit();
- return rc;
-}
-
-static int sx_break(struct tty_struct *tty, int flag)
-{
- struct sx_port *port = tty->driver_data;
- int rv;
-
- func_enter();
- tty_lock();
-
- if (flag)
- rv = sx_send_command(port, HS_START, -1, HS_IDLE_BREAK);
- else
- rv = sx_send_command(port, HS_STOP, -1, HS_IDLE_OPEN);
- if (rv != 1)
- printk(KERN_ERR "sx: couldn't send break (%x).\n",
- read_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat)));
- tty_unlock();
- func_exit();
- return 0;
-}
-
-static int sx_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct sx_port *port = tty->driver_data;
- return sx_getsignals(port);
-}
-
-static int sx_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct sx_port *port = tty->driver_data;
- int rts = -1, dtr = -1;
-
- if (set & TIOCM_RTS)
- rts = 1;
- if (set & TIOCM_DTR)
- dtr = 1;
- if (clear & TIOCM_RTS)
- rts = 0;
- if (clear & TIOCM_DTR)
- dtr = 0;
-
- sx_setsignals(port, dtr, rts);
- sx_reconfigure_port(port);
- return 0;
-}
-
-static int sx_ioctl(struct tty_struct *tty, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- int rc;
- struct sx_port *port = tty->driver_data;
- void __user *argp = (void __user *)arg;
-
- /* func_enter2(); */
-
- rc = 0;
- tty_lock();
- switch (cmd) {
- case TIOCGSERIAL:
- rc = gs_getserial(&port->gs, argp);
- break;
- case TIOCSSERIAL:
- rc = gs_setserial(&port->gs, argp);
- break;
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
- tty_unlock();
-
- /* func_exit(); */
- return rc;
-}
-
-/* The throttle/unthrottle scheme for the Specialix card is different
- * from other drivers and deserves some explanation.
- * The Specialix hardware takes care of XON/XOFF
- * and CTS/RTS flow control itself. This means that all we have to
- * do when signalled by the upper tty layer to throttle/unthrottle is
- * to make a note of it here. When we come to read characters from the
- * rx buffers on the card (sx_receive_chars()) we look to see if the
- * upper layer can accept more (as noted here in sx_rx_throt[]).
- * If it can't we simply don't remove chars from the cards buffer.
- * When the tty layer can accept chars, we again note that here and when
- * sx_receive_chars() is called it will remove them from the cards buffer.
- * The card will notice that a ports buffer has drained below some low
- * water mark and will unflow control the line itself, using whatever
- * flow control scheme is in use for that port. -- Simon Allen
- */
-
-static void sx_throttle(struct tty_struct *tty)
-{
- struct sx_port *port = tty->driver_data;
-
- func_enter2();
- /* If the port is using any type of input flow
- * control then throttle the port.
- */
- if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) {
- port->gs.port.flags |= SX_RX_THROTTLE;
- }
- func_exit();
-}
-
-static void sx_unthrottle(struct tty_struct *tty)
-{
- struct sx_port *port = tty->driver_data;
-
- func_enter2();
- /* Always unthrottle even if flow control is not enabled on
- * this port in case we disabled flow control while the port
- * was throttled
- */
- port->gs.port.flags &= ~SX_RX_THROTTLE;
- func_exit();
- return;
-}
-
-/* ********************************************************************** *
- * Here are the initialization routines. *
- * ********************************************************************** */
-
-static int sx_init_board(struct sx_board *board)
-{
- int addr;
- int chans;
- int type;
-
- func_enter();
-
- /* This is preceded by downloading the download code. */
-
- board->flags |= SX_BOARD_INITIALIZED;
-
- if (read_sx_byte(board, 0))
- /* CF boards may need this. */
- write_sx_byte(board, 0, 0);
-
- /* This resets the processor again, to make sure it didn't do any
- foolish things while we were downloading the image */
- if (!sx_reset(board))
- return 0;
-
- sx_start_board(board);
- udelay(10);
- if (!sx_busy_wait_neq(board, 0, 0xff, 0)) {
- printk(KERN_ERR "sx: Ooops. Board won't initialize.\n");
- return 0;
- }
-
- /* Ok. So now the processor on the card is running. It gathered
- some info for us... */
- sx_dprintk(SX_DEBUG_INIT, "The sxcard structure:\n");
- if (sx_debug & SX_DEBUG_INIT)
- my_hd_io(board->base, 0x10);
- sx_dprintk(SX_DEBUG_INIT, "the first sx_module structure:\n");
- if (sx_debug & SX_DEBUG_INIT)
- my_hd_io(board->base + 0x80, 0x30);
-
- sx_dprintk(SX_DEBUG_INIT, "init_status: %x, %dk memory, firmware "
- "V%x.%02x,\n",
- read_sx_byte(board, 0), read_sx_byte(board, 1),
- read_sx_byte(board, 5), read_sx_byte(board, 4));
-
- if (read_sx_byte(board, 0) == 0xff) {
- printk(KERN_INFO "sx: No modules found. Sorry.\n");
- board->nports = 0;
- return 0;
- }
-
- chans = 0;
-
- if (IS_SX_BOARD(board)) {
- sx_write_board_word(board, cc_int_count, sx_maxints);
- } else {
- if (sx_maxints)
- sx_write_board_word(board, cc_int_count,
- SI_PROCESSOR_CLOCK / 8 / sx_maxints);
- }
-
- /* grab the first module type... */
- /* board->ta_type = mod_compat_type (read_sx_byte (board, 0x80 + 0x08)); */
- board->ta_type = mod_compat_type(sx_read_module_byte(board, 0x80,
- mc_chip));
-
- /* XXX byteorder */
- for (addr = 0x80; addr != 0; addr = read_sx_word(board, addr) & 0x7fff){
- type = sx_read_module_byte(board, addr, mc_chip);
- sx_dprintk(SX_DEBUG_INIT, "Module at %x: %d channels\n",
- addr, read_sx_byte(board, addr + 2));
-
- chans += sx_read_module_byte(board, addr, mc_type);
-
- sx_dprintk(SX_DEBUG_INIT, "module is an %s, which has %s/%s "
- "panels\n",
- mod_type_s(type),
- pan_type_s(sx_read_module_byte(board, addr,
- mc_mods) & 0xf),
- pan_type_s(sx_read_module_byte(board, addr,
- mc_mods) >> 4));
-
- sx_dprintk(SX_DEBUG_INIT, "CD1400 versions: %x/%x, ASIC "
- "version: %x\n",
- sx_read_module_byte(board, addr, mc_rev1),
- sx_read_module_byte(board, addr, mc_rev2),
- sx_read_module_byte(board, addr, mc_mtaasic_rev));
-
- /* The following combinations are illegal: It should theoretically
- work, but timing problems make the bus HANG. */
-
- if (mod_compat_type(type) != board->ta_type) {
- printk(KERN_ERR "sx: This is an invalid "
- "configuration.\nDon't mix TA/MTA/SXDC on the "
- "same hostadapter.\n");
- chans = 0;
- break;
- }
- if ((IS_EISA_BOARD(board) ||
- IS_SI_BOARD(board)) &&
- (mod_compat_type(type) == 4)) {
- printk(KERN_ERR "sx: This is an invalid "
- "configuration.\nDon't use SXDCs on an SI/XIO "
- "adapter.\n");
- chans = 0;
- break;
- }
-#if 0 /* Problem fixed: firmware 3.05 */
- if (IS_SX_BOARD(board) && (type == TA8)) {
- /* There are some issues with the firmware and the DCD/RTS
- lines. It might work if you tie them together or something.
- It might also work if you get a newer sx_firmware. Therefore
- this is just a warning. */
- printk(KERN_WARNING
- "sx: The SX host doesn't work too well "
- "with the TA8 adapters.\nSpecialix is working on it.\n");
- }
-#endif
- }
-
- if (chans) {
- if (board->irq > 0) {
- /* fixed irq, probably PCI */
- if (sx_irqmask & (1 << board->irq)) { /* may we use this irq? */
- if (request_irq(board->irq, sx_interrupt,
- IRQF_SHARED | IRQF_DISABLED,
- "sx", board)) {
- printk(KERN_ERR "sx: Cannot allocate "
- "irq %d.\n", board->irq);
- board->irq = 0;
- }
- } else
- board->irq = 0;
- } else if (board->irq < 0 && sx_irqmask) {
- /* auto-allocate irq */
- int irqnr;
- int irqmask = sx_irqmask & (IS_SX_BOARD(board) ?
- SX_ISA_IRQ_MASK : SI2_ISA_IRQ_MASK);
- for (irqnr = 15; irqnr > 0; irqnr--)
- if (irqmask & (1 << irqnr))
- if (!request_irq(irqnr, sx_interrupt,
- IRQF_SHARED | IRQF_DISABLED,
- "sx", board))
- break;
- if (!irqnr)
- printk(KERN_ERR "sx: Cannot allocate IRQ.\n");
- board->irq = irqnr;
- } else
- board->irq = 0;
-
- if (board->irq) {
- /* Found a valid interrupt, start up interrupts! */
- sx_dprintk(SX_DEBUG_INIT, "Using irq %d.\n",
- board->irq);
- sx_start_interrupts(board);
- board->poll = sx_slowpoll;
- board->flags |= SX_IRQ_ALLOCATED;
- } else {
- /* no irq: setup board for polled operation */
- board->poll = sx_poll;
- sx_dprintk(SX_DEBUG_INIT, "Using poll-interval %d.\n",
- board->poll);
- }
-
- /* The timer should be initialized anyway: That way we can
- safely del_timer it when the module is unloaded. */
- setup_timer(&board->timer, sx_pollfunc, (unsigned long)board);
-
- if (board->poll)
- mod_timer(&board->timer, jiffies + board->poll);
- } else {
- board->irq = 0;
- }
-
- board->nports = chans;
- sx_dprintk(SX_DEBUG_INIT, "returning %d ports.", board->nports);
-
- func_exit();
- return chans;
-}
-
-static void __devinit printheader(void)
-{
- static int header_printed;
-
- if (!header_printed) {
- printk(KERN_INFO "Specialix SX driver "
- "(C) 1998/1999 R.E.Wolff@BitWizard.nl\n");
- printk(KERN_INFO "sx: version " __stringify(SX_VERSION) "\n");
- header_printed = 1;
- }
-}
-
-static int __devinit probe_sx(struct sx_board *board)
-{
- struct vpd_prom vpdp;
- char *p;
- int i;
-
- func_enter();
-
- if (!IS_CF_BOARD(board)) {
- sx_dprintk(SX_DEBUG_PROBE, "Going to verify vpd prom at %p.\n",
- board->base + SX_VPD_ROM);
-
- if (sx_debug & SX_DEBUG_PROBE)
- my_hd_io(board->base + SX_VPD_ROM, 0x40);
-
- p = (char *)&vpdp;
- for (i = 0; i < sizeof(struct vpd_prom); i++)
- *p++ = read_sx_byte(board, SX_VPD_ROM + i * 2);
-
- if (sx_debug & SX_DEBUG_PROBE)
- my_hd(&vpdp, 0x20);
-
- sx_dprintk(SX_DEBUG_PROBE, "checking identifier...\n");
-
- if (strncmp(vpdp.identifier, SX_VPD_IDENT_STRING, 16) != 0) {
- sx_dprintk(SX_DEBUG_PROBE, "Got non-SX identifier: "
- "'%s'\n", vpdp.identifier);
- return 0;
- }
- }
-
- printheader();
-
- if (!IS_CF_BOARD(board)) {
- printk(KERN_DEBUG "sx: Found an SX board at %lx\n",
- board->hw_base);
- printk(KERN_DEBUG "sx: hw_rev: %d, assembly level: %d, "
- "uniq ID:%08x, ",
- vpdp.hwrev, vpdp.hwass, vpdp.uniqid);
- printk("Manufactured: %d/%d\n", 1970 + vpdp.myear, vpdp.mweek);
-
- if ((((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) !=
- SX_PCI_UNIQUEID1) && (((vpdp.uniqid >> 24) &
- SX_UNIQUEID_MASK) != SX_ISA_UNIQUEID1)) {
- /* This might be a bit harsh. This was the primary
- reason the SX/ISA card didn't work at first... */
- printk(KERN_ERR "sx: Hmm. Not an SX/PCI or SX/ISA "
- "card. Sorry: giving up.\n");
- return (0);
- }
-
- if (((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) ==
- SX_ISA_UNIQUEID1) {
- if (((unsigned long)board->hw_base) & 0x8000) {
- printk(KERN_WARNING "sx: Warning: There may be "
- "hardware problems with the card at "
- "%lx.\n", board->hw_base);
- printk(KERN_WARNING "sx: Read sx.txt for more "
- "info.\n");
- }
- }
- }
-
- board->nports = -1;
-
- /* This resets the processor, and keeps it off the bus. */
- if (!sx_reset(board))
- return 0;
- sx_dprintk(SX_DEBUG_INIT, "reset the board...\n");
-
- func_exit();
- return 1;
-}
-
-#if defined(CONFIG_ISA) || defined(CONFIG_EISA)
-
-/* Specialix probes for this card at 32k increments from 640k to 16M.
- I consider machines with less than 16M unlikely nowadays, so I'm
- not probing above 1Mb. Also, 0xa0000, 0xb0000, are taken by the VGA
- card. 0xe0000 and 0xf0000 are taken by the BIOS. That only leaves
- 0xc0000, 0xc8000, 0xd0000 and 0xd8000 . */
-
-static int __devinit probe_si(struct sx_board *board)
-{
- int i;
-
- func_enter();
- sx_dprintk(SX_DEBUG_PROBE, "Going to verify SI signature hw %lx at "
- "%p.\n", board->hw_base, board->base + SI2_ISA_ID_BASE);
-
- if (sx_debug & SX_DEBUG_PROBE)
- my_hd_io(board->base + SI2_ISA_ID_BASE, 0x8);
-
- if (!IS_EISA_BOARD(board)) {
- if (IS_SI1_BOARD(board)) {
- for (i = 0; i < 8; i++) {
- write_sx_byte(board, SI2_ISA_ID_BASE + 7 - i,i);
- }
- }
- for (i = 0; i < 8; i++) {
- if ((read_sx_byte(board, SI2_ISA_ID_BASE + 7 - i) & 7)
- != i) {
- func_exit();
- return 0;
- }
- }
- }
-
- /* Now we're pretty much convinced that there is an SI board here,
- but to prevent trouble, we'd better double check that we don't
- have an SI1 board when we're probing for an SI2 board.... */
-
- write_sx_byte(board, SI2_ISA_ID_BASE, 0x10);
- if (IS_SI1_BOARD(board)) {
- /* This should be an SI1 board, which has this
- location writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) {
- func_exit();
- return 0;
- }
- } else {
- /* This should be an SI2 board, which has the bottom
- 3 bits non-writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) {
- func_exit();
- return 0;
- }
- }
-
- /* Now we're pretty much convinced that there is an SI board here,
- but to prevent trouble, we'd better double check that we don't
- have an SI1 board when we're probing for an SI2 board.... */
-
- write_sx_byte(board, SI2_ISA_ID_BASE, 0x10);
- if (IS_SI1_BOARD(board)) {
- /* This should be an SI1 board, which has this
- location writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) {
- func_exit();
- return 0;
- }
- } else {
- /* This should be an SI2 board, which has the bottom
- 3 bits non-writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) {
- func_exit();
- return 0;
- }
- }
-
- printheader();
-
- printk(KERN_DEBUG "sx: Found an SI board at %lx\n", board->hw_base);
- /* Compared to the SX boards, it is a complete guess as to what
- this card is up to... */
-
- board->nports = -1;
-
- /* This resets the processor, and keeps it off the bus. */
- if (!sx_reset(board))
- return 0;
- sx_dprintk(SX_DEBUG_INIT, "reset the board...\n");
-
- func_exit();
- return 1;
-}
-#endif
-
-static const struct tty_operations sx_ops = {
- .break_ctl = sx_break,
- .open = sx_open,
- .close = gs_close,
- .write = gs_write,
- .put_char = gs_put_char,
- .flush_chars = gs_flush_chars,
- .write_room = gs_write_room,
- .chars_in_buffer = gs_chars_in_buffer,
- .flush_buffer = gs_flush_buffer,
- .ioctl = sx_ioctl,
- .throttle = sx_throttle,
- .unthrottle = sx_unthrottle,
- .set_termios = gs_set_termios,
- .stop = gs_stop,
- .start = gs_start,
- .hangup = gs_hangup,
- .tiocmget = sx_tiocmget,
- .tiocmset = sx_tiocmset,
-};
-
-static const struct tty_port_operations sx_port_ops = {
- .carrier_raised = sx_carrier_raised,
-};
-
-static int sx_init_drivers(void)
-{
- int error;
-
- func_enter();
-
- sx_driver = alloc_tty_driver(sx_nports);
- if (!sx_driver)
- return 1;
- sx_driver->owner = THIS_MODULE;
- sx_driver->driver_name = "specialix_sx";
- sx_driver->name = "ttyX";
- sx_driver->major = SX_NORMAL_MAJOR;
- sx_driver->type = TTY_DRIVER_TYPE_SERIAL;
- sx_driver->subtype = SERIAL_TYPE_NORMAL;
- sx_driver->init_termios = tty_std_termios;
- sx_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- sx_driver->init_termios.c_ispeed = 9600;
- sx_driver->init_termios.c_ospeed = 9600;
- sx_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(sx_driver, &sx_ops);
-
- if ((error = tty_register_driver(sx_driver))) {
- put_tty_driver(sx_driver);
- printk(KERN_ERR "sx: Couldn't register sx driver, error = %d\n",
- error);
- return 1;
- }
- func_exit();
- return 0;
-}
-
-static int sx_init_portstructs(int nboards, int nports)
-{
- struct sx_board *board;
- struct sx_port *port;
- int i, j;
- int addr, chans;
- int portno;
-
- func_enter();
-
- /* Many drivers statically allocate the maximum number of ports
- There is no reason not to allocate them dynamically.
- Is there? -- REW */
- sx_ports = kcalloc(nports, sizeof(struct sx_port), GFP_KERNEL);
- if (!sx_ports)
- return -ENOMEM;
-
- port = sx_ports;
- for (i = 0; i < nboards; i++) {
- board = &boards[i];
- board->ports = port;
- for (j = 0; j < boards[i].nports; j++) {
- sx_dprintk(SX_DEBUG_INIT, "initing port %d\n", j);
- tty_port_init(&port->gs.port);
- port->gs.port.ops = &sx_port_ops;
- port->gs.magic = SX_MAGIC;
- port->gs.close_delay = HZ / 2;
- port->gs.closing_wait = 30 * HZ;
- port->board = board;
- port->gs.rd = &sx_real_driver;
-#ifdef NEW_WRITE_LOCKING
- port->gs.port_write_mutex = MUTEX;
-#endif
- spin_lock_init(&port->gs.driver_lock);
- /*
- * Initializing wait queue
- */
- port++;
- }
- }
-
- port = sx_ports;
- portno = 0;
- for (i = 0; i < nboards; i++) {
- board = &boards[i];
- board->port_base = portno;
- /* Possibly the configuration was rejected. */
- sx_dprintk(SX_DEBUG_PROBE, "Board has %d channels\n",
- board->nports);
- if (board->nports <= 0)
- continue;
- /* XXX byteorder ?? */
- for (addr = 0x80; addr != 0;
- addr = read_sx_word(board, addr) & 0x7fff) {
- chans = sx_read_module_byte(board, addr, mc_type);
- sx_dprintk(SX_DEBUG_PROBE, "Module at %x: %d "
- "channels\n", addr, chans);
- sx_dprintk(SX_DEBUG_PROBE, "Port at");
- for (j = 0; j < chans; j++) {
- /* The "sx-way" is the way it SHOULD be done.
- That way in the future, the firmware may for
- example pack the structures a bit more
- efficient. Neil tells me it isn't going to
- happen anytime soon though. */
- if (IS_SX_BOARD(board))
- port->ch_base = sx_read_module_word(
- board, addr + j * 2,
- mc_chan_pointer);
- else
- port->ch_base = addr + 0x100 + 0x300 *j;
-
- sx_dprintk(SX_DEBUG_PROBE, " %x",
- port->ch_base);
- port->line = portno++;
- port++;
- }
- sx_dprintk(SX_DEBUG_PROBE, "\n");
- }
- /* This has to be done earlier. */
- /* board->flags |= SX_BOARD_INITIALIZED; */
- }
-
- func_exit();
- return 0;
-}
-
-static unsigned int sx_find_free_board(void)
-{
- unsigned int i;
-
- for (i = 0; i < SX_NBOARDS; i++)
- if (!(boards[i].flags & SX_BOARD_PRESENT))
- break;
-
- return i;
-}
-
-static void __exit sx_release_drivers(void)
-{
- func_enter();
- tty_unregister_driver(sx_driver);
- put_tty_driver(sx_driver);
- func_exit();
-}
-
-static void __devexit sx_remove_card(struct sx_board *board,
- struct pci_dev *pdev)
-{
- if (board->flags & SX_BOARD_INITIALIZED) {
- /* The board should stop messing with us. (actually I mean the
- interrupt) */
- sx_reset(board);
- if ((board->irq) && (board->flags & SX_IRQ_ALLOCATED))
- free_irq(board->irq, board);
-
- /* It is safe/allowed to del_timer a non-active timer */
- del_timer(&board->timer);
- if (pdev) {
-#ifdef CONFIG_PCI
- iounmap(board->base2);
- pci_release_region(pdev, IS_CF_BOARD(board) ? 3 : 2);
-#endif
- } else {
- iounmap(board->base);
- release_region(board->hw_base, board->hw_len);
- }
-
- board->flags &= ~(SX_BOARD_INITIALIZED | SX_BOARD_PRESENT);
- }
-}
-
-#ifdef CONFIG_EISA
-
-static int __devinit sx_eisa_probe(struct device *dev)
-{
- struct eisa_device *edev = to_eisa_device(dev);
- struct sx_board *board;
- unsigned long eisa_slot = edev->base_addr;
- unsigned int i;
- int retval = -EIO;
-
- mutex_lock(&sx_boards_lock);
- i = sx_find_free_board();
- if (i == SX_NBOARDS) {
- mutex_unlock(&sx_boards_lock);
- goto err;
- }
- board = &boards[i];
- board->flags |= SX_BOARD_PRESENT;
- mutex_unlock(&sx_boards_lock);
-
- dev_info(dev, "XIO : Signature found in EISA slot %lu, "
- "Product %d Rev %d (REPORT THIS TO LKLM)\n",
- eisa_slot >> 12,
- inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 2),
- inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 3));
-
- board->eisa_base = eisa_slot;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SI_EISA_BOARD;
-
- board->hw_base = ((inb(eisa_slot + 0xc01) << 8) +
- inb(eisa_slot + 0xc00)) << 16;
- board->hw_len = SI2_EISA_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx")) {
- dev_err(dev, "can't request region\n");
- goto err_flag;
- }
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, SI2_EISA_WINDOW_LEN);
- if (!board->base) {
- dev_err(dev, "can't remap memory\n");
- goto err_reg;
- }
-
- sx_dprintk(SX_DEBUG_PROBE, "IO hw_base address: %lx\n", board->hw_base);
- sx_dprintk(SX_DEBUG_PROBE, "base: %p\n", board->base);
- board->irq = inb(eisa_slot + 0xc02) >> 4;
- sx_dprintk(SX_DEBUG_PROBE, "IRQ: %d\n", board->irq);
-
- if (!probe_si(board))
- goto err_unmap;
-
- dev_set_drvdata(dev, board);
-
- return 0;
-err_unmap:
- iounmap(board->base);
-err_reg:
- release_region(board->hw_base, board->hw_len);
-err_flag:
- board->flags &= ~SX_BOARD_PRESENT;
-err:
- return retval;
-}
-
-static int __devexit sx_eisa_remove(struct device *dev)
-{
- struct sx_board *board = dev_get_drvdata(dev);
-
- sx_remove_card(board, NULL);
-
- return 0;
-}
-
-static struct eisa_device_id sx_eisa_tbl[] = {
- { "SLX" },
- { "" }
-};
-
-MODULE_DEVICE_TABLE(eisa, sx_eisa_tbl);
-
-static struct eisa_driver sx_eisadriver = {
- .id_table = sx_eisa_tbl,
- .driver = {
- .name = "sx",
- .probe = sx_eisa_probe,
- .remove = __devexit_p(sx_eisa_remove),
- }
-};
-
-#endif
-
-#ifdef CONFIG_PCI
- /********************************************************
- * Setting bit 17 in the CNTRL register of the PLX 9050 *
- * chip forces a retry on writes while a read is pending.*
- * This is to prevent the card locking up on Intel Xeon *
- * multiprocessor systems with the NX chipset. -- NV *
- ********************************************************/
-
-/* Newer cards are produced with this bit set from the configuration
- EEprom. As the bit is read/write for the CPU, we can fix it here,
- if we detect that it isn't set correctly. -- REW */
-
-static void __devinit fix_sx_pci(struct pci_dev *pdev, struct sx_board *board)
-{
- unsigned int hwbase;
- void __iomem *rebase;
- unsigned int t;
-
-#define CNTRL_REG_OFFSET 0x50
-#define CNTRL_REG_GOODVALUE 0x18260000
-
- pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &hwbase);
- hwbase &= PCI_BASE_ADDRESS_MEM_MASK;
- rebase = ioremap_nocache(hwbase, 0x80);
- t = readl(rebase + CNTRL_REG_OFFSET);
- if (t != CNTRL_REG_GOODVALUE) {
- printk(KERN_DEBUG "sx: performing cntrl reg fix: %08x -> "
- "%08x\n", t, CNTRL_REG_GOODVALUE);
- writel(CNTRL_REG_GOODVALUE, rebase + CNTRL_REG_OFFSET);
- }
- iounmap(rebase);
-}
-#endif
-
-static int __devinit sx_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
-#ifdef CONFIG_PCI
- struct sx_board *board;
- unsigned int i, reg;
- int retval = -EIO;
-
- mutex_lock(&sx_boards_lock);
- i = sx_find_free_board();
- if (i == SX_NBOARDS) {
- mutex_unlock(&sx_boards_lock);
- goto err;
- }
- board = &boards[i];
- board->flags |= SX_BOARD_PRESENT;
- mutex_unlock(&sx_boards_lock);
-
- retval = pci_enable_device(pdev);
- if (retval)
- goto err_flag;
-
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= (pdev->subsystem_vendor == 0x200) ? SX_PCI_BOARD :
- SX_CFPCI_BOARD;
-
- /* CF boards use base address 3.... */
- reg = IS_CF_BOARD(board) ? 3 : 2;
- retval = pci_request_region(pdev, reg, "sx");
- if (retval) {
- dev_err(&pdev->dev, "can't request region\n");
- goto err_flag;
- }
- board->hw_base = pci_resource_start(pdev, reg);
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, WINDOW_LEN(board));
- if (!board->base) {
- dev_err(&pdev->dev, "ioremap failed\n");
- goto err_reg;
- }
-
- /* Most of the stuff on the CF board is offset by 0x18000 .... */
- if (IS_CF_BOARD(board))
- board->base += 0x18000;
-
- board->irq = pdev->irq;
-
- dev_info(&pdev->dev, "Got a specialix card: %p(%d) %x.\n", board->base,
- board->irq, board->flags);
-
- if (!probe_sx(board)) {
- retval = -EIO;
- goto err_unmap;
- }
-
- fix_sx_pci(pdev, board);
-
- pci_set_drvdata(pdev, board);
-
- return 0;
-err_unmap:
- iounmap(board->base2);
-err_reg:
- pci_release_region(pdev, reg);
-err_flag:
- board->flags &= ~SX_BOARD_PRESENT;
-err:
- return retval;
-#else
- return -ENODEV;
-#endif
-}
-
-static void __devexit sx_pci_remove(struct pci_dev *pdev)
-{
- struct sx_board *board = pci_get_drvdata(pdev);
-
- sx_remove_card(board, pdev);
-}
-
-/* Specialix has a whole bunch of cards with 0x2000 as the device ID. They say
- its because the standard requires it. So check for SUBVENDOR_ID. */
-static struct pci_device_id sx_pci_tbl[] = {
- { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8,
- .subvendor = PCI_ANY_ID, .subdevice = 0x0200 },
- { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8,
- .subvendor = PCI_ANY_ID, .subdevice = 0x0300 },
- { 0 }
-};
-
-MODULE_DEVICE_TABLE(pci, sx_pci_tbl);
-
-static struct pci_driver sx_pcidriver = {
- .name = "sx",
- .id_table = sx_pci_tbl,
- .probe = sx_pci_probe,
- .remove = __devexit_p(sx_pci_remove)
-};
-
-static int __init sx_init(void)
-{
-#ifdef CONFIG_EISA
- int retval1;
-#endif
-#ifdef CONFIG_ISA
- struct sx_board *board;
- unsigned int i;
-#endif
- unsigned int found = 0;
- int retval;
-
- func_enter();
- sx_dprintk(SX_DEBUG_INIT, "Initing sx module... (sx_debug=%d)\n",
- sx_debug);
- if (abs((long)(&sx_debug) - sx_debug) < 0x10000) {
- printk(KERN_WARNING "sx: sx_debug is an address, instead of a "
- "value. Assuming -1.\n(%p)\n", &sx_debug);
- sx_debug = -1;
- }
-
- if (misc_register(&sx_fw_device) < 0) {
- printk(KERN_ERR "SX: Unable to register firmware loader "
- "driver.\n");
- return -EIO;
- }
-#ifdef CONFIG_ISA
- for (i = 0; i < NR_SX_ADDRS; i++) {
- board = &boards[found];
- board->hw_base = sx_probe_addrs[i];
- board->hw_len = SX_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx"))
- continue;
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, board->hw_len);
- if (!board->base)
- goto err_sx_reg;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SX_ISA_BOARD;
- board->irq = sx_irqmask ? -1 : 0;
-
- if (probe_sx(board)) {
- board->flags |= SX_BOARD_PRESENT;
- found++;
- } else {
- iounmap(board->base);
-err_sx_reg:
- release_region(board->hw_base, board->hw_len);
- }
- }
-
- for (i = 0; i < NR_SI_ADDRS; i++) {
- board = &boards[found];
- board->hw_base = si_probe_addrs[i];
- board->hw_len = SI2_ISA_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx"))
- continue;
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, board->hw_len);
- if (!board->base)
- goto err_si_reg;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SI_ISA_BOARD;
- board->irq = sx_irqmask ? -1 : 0;
-
- if (probe_si(board)) {
- board->flags |= SX_BOARD_PRESENT;
- found++;
- } else {
- iounmap(board->base);
-err_si_reg:
- release_region(board->hw_base, board->hw_len);
- }
- }
- for (i = 0; i < NR_SI1_ADDRS; i++) {
- board = &boards[found];
- board->hw_base = si1_probe_addrs[i];
- board->hw_len = SI1_ISA_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx"))
- continue;
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, board->hw_len);
- if (!board->base)
- goto err_si1_reg;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SI1_ISA_BOARD;
- board->irq = sx_irqmask ? -1 : 0;
-
- if (probe_si(board)) {
- board->flags |= SX_BOARD_PRESENT;
- found++;
- } else {
- iounmap(board->base);
-err_si1_reg:
- release_region(board->hw_base, board->hw_len);
- }
- }
-#endif
-#ifdef CONFIG_EISA
- retval1 = eisa_driver_register(&sx_eisadriver);
-#endif
- retval = pci_register_driver(&sx_pcidriver);
-
- if (found) {
- printk(KERN_INFO "sx: total of %d boards detected.\n", found);
- retval = 0;
- } else if (retval) {
-#ifdef CONFIG_EISA
- retval = retval1;
- if (retval1)
-#endif
- misc_deregister(&sx_fw_device);
- }
-
- func_exit();
- return retval;
-}
-
-static void __exit sx_exit(void)
-{
- int i;
-
- func_enter();
-#ifdef CONFIG_EISA
- eisa_driver_unregister(&sx_eisadriver);
-#endif
- pci_unregister_driver(&sx_pcidriver);
-
- for (i = 0; i < SX_NBOARDS; i++)
- sx_remove_card(&boards[i], NULL);
-
- if (misc_deregister(&sx_fw_device) < 0) {
- printk(KERN_INFO "sx: couldn't deregister firmware loader "
- "device\n");
- }
- sx_dprintk(SX_DEBUG_CLEANUP, "Cleaning up drivers (%d)\n",
- sx_initialized);
- if (sx_initialized)
- sx_release_drivers();
-
- kfree(sx_ports);
- func_exit();
-}
-
-module_init(sx_init);
-module_exit(sx_exit);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 07:59:52 +0300