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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2* sym53c500_cs.c Bob Tracy (rct@frus.com)
3*
4* A rewrite of the pcmcia-cs add-on driver for newer (circa 1997)
5* New Media Bus Toaster PCMCIA SCSI cards using the Symbios Logic
6* 53c500 controller: intended for use with 2.6 and later kernels.
7* The pcmcia-cs add-on version of this driver is not supported
8* beyond 2.4. It consisted of three files with history/copyright
9* information as follows:
10*
11* SYM53C500.h
12* Bob Tracy (rct@frus.com)
13* Original by Tom Corner (tcorner@via.at).
14* Adapted from NCR53c406a.h which is Copyrighted (C) 1994
15* Normunds Saumanis (normunds@rx.tech.swh.lv)
16*
17* SYM53C500.c
18* Bob Tracy (rct@frus.com)
19* Original driver by Tom Corner (tcorner@via.at) was adapted
20* from NCR53c406a.c which is Copyrighted (C) 1994, 1995, 1996
21* Normunds Saumanis (normunds@fi.ibm.com)
22*
23* sym53c500.c
24* Bob Tracy (rct@frus.com)
25* Original by Tom Corner (tcorner@via.at) was adapted from a
26* driver for the Qlogic SCSI card written by
27* David Hinds (dhinds@allegro.stanford.edu).
28*
29* This program is free software; you can redistribute it and/or modify it
30* under the terms of the GNU General Public License as published by the
31* Free Software Foundation; either version 2, or (at your option) any
32* later version.
33*
34* This program is distributed in the hope that it will be useful, but
35* WITHOUT ANY WARRANTY; without even the implied warranty of
36* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
37* General Public License for more details.
38*/
39
40#define SYM53C500_DEBUG 0
41#define VERBOSE_SYM53C500_DEBUG 0
42
43/*
44* Set this to 0 if you encounter kernel lockups while transferring
45* data in PIO mode. Note this can be changed via "sysfs".
46*/
47#define USE_FAST_PIO 1
48
49/* =============== End of user configurable parameters ============== */
50
51#include <linux/module.h>
52#include <linux/moduleparam.h>
53#include <linux/errno.h>
54#include <linux/init.h>
55#include <linux/interrupt.h>
56#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070057#include <linux/slab.h>
58#include <linux/string.h>
59#include <linux/ioport.h>
60#include <linux/blkdev.h>
61#include <linux/spinlock.h>
62#include <linux/bitops.h>
63
64#include <asm/io.h>
65#include <asm/dma.h>
66#include <asm/irq.h>
67
68#include <scsi/scsi_ioctl.h>
69#include <scsi/scsi_cmnd.h>
70#include <scsi/scsi_device.h>
71#include <scsi/scsi.h>
72#include <scsi/scsi_host.h>
73
74#include <pcmcia/cs_types.h>
75#include <pcmcia/cs.h>
76#include <pcmcia/cistpl.h>
77#include <pcmcia/ds.h>
78#include <pcmcia/ciscode.h>
79
80/* ================================================================== */
81
82#ifdef PCMCIA_DEBUG
83static int pc_debug = PCMCIA_DEBUG;
84module_param(pc_debug, int, 0);
85#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
86static char *version =
87"sym53c500_cs.c 0.9c 2004/10/27 (Bob Tracy)";
88#else
89#define DEBUG(n, args...)
90#endif
91
92/* ================================================================== */
93
94#define SYNC_MODE 0 /* Synchronous transfer mode */
95
96/* Default configuration */
97#define C1_IMG 0x07 /* ID=7 */
98#define C2_IMG 0x48 /* FE SCSI2 */
99#define C3_IMG 0x20 /* CDB */
100#define C4_IMG 0x04 /* ANE */
101#define C5_IMG 0xa4 /* ? changed from b6= AA PI SIE POL */
102#define C7_IMG 0x80 /* added for SYM53C500 t. corner */
103
104/* Hardware Registers: offsets from io_port (base) */
105
106/* Control Register Set 0 */
107#define TC_LSB 0x00 /* transfer counter lsb */
108#define TC_MSB 0x01 /* transfer counter msb */
109#define SCSI_FIFO 0x02 /* scsi fifo register */
110#define CMD_REG 0x03 /* command register */
111#define STAT_REG 0x04 /* status register */
112#define DEST_ID 0x04 /* selection/reselection bus id */
113#define INT_REG 0x05 /* interrupt status register */
114#define SRTIMOUT 0x05 /* select/reselect timeout reg */
115#define SEQ_REG 0x06 /* sequence step register */
116#define SYNCPRD 0x06 /* synchronous transfer period */
117#define FIFO_FLAGS 0x07 /* indicates # of bytes in fifo */
118#define SYNCOFF 0x07 /* synchronous offset register */
119#define CONFIG1 0x08 /* configuration register */
120#define CLKCONV 0x09 /* clock conversion register */
121/* #define TESTREG 0x0A */ /* test mode register */
122#define CONFIG2 0x0B /* configuration 2 register */
123#define CONFIG3 0x0C /* configuration 3 register */
124#define CONFIG4 0x0D /* configuration 4 register */
125#define TC_HIGH 0x0E /* transfer counter high */
126/* #define FIFO_BOTTOM 0x0F */ /* reserve FIFO byte register */
127
128/* Control Register Set 1 */
129/* #define JUMPER_SENSE 0x00 */ /* jumper sense port reg (r/w) */
130/* #define SRAM_PTR 0x01 */ /* SRAM address pointer reg (r/w) */
131/* #define SRAM_DATA 0x02 */ /* SRAM data register (r/w) */
132#define PIO_FIFO 0x04 /* PIO FIFO registers (r/w) */
133/* #define PIO_FIFO1 0x05 */ /* */
134/* #define PIO_FIFO2 0x06 */ /* */
135/* #define PIO_FIFO3 0x07 */ /* */
136#define PIO_STATUS 0x08 /* PIO status (r/w) */
137/* #define ATA_CMD 0x09 */ /* ATA command/status reg (r/w) */
138/* #define ATA_ERR 0x0A */ /* ATA features/error reg (r/w) */
139#define PIO_FLAG 0x0B /* PIO flag interrupt enable (r/w) */
140#define CONFIG5 0x09 /* configuration 5 register */
141/* #define SIGNATURE 0x0E */ /* signature register (r) */
142/* #define CONFIG6 0x0F */ /* configuration 6 register (r) */
143#define CONFIG7 0x0d
144
145/* select register set 0 */
146#define REG0(x) (outb(C4_IMG, (x) + CONFIG4))
147/* select register set 1 */
148#define REG1(x) outb(C7_IMG, (x) + CONFIG7); outb(C5_IMG, (x) + CONFIG5)
149
150#if SYM53C500_DEBUG
151#define DEB(x) x
152#else
153#define DEB(x)
154#endif
155
156#if VERBOSE_SYM53C500_DEBUG
157#define VDEB(x) x
158#else
159#define VDEB(x)
160#endif
161
162#define LOAD_DMA_COUNT(x, count) \
163 outb(count & 0xff, (x) + TC_LSB); \
164 outb((count >> 8) & 0xff, (x) + TC_MSB); \
165 outb((count >> 16) & 0xff, (x) + TC_HIGH);
166
167/* Chip commands */
168#define DMA_OP 0x80
169
170#define SCSI_NOP 0x00
171#define FLUSH_FIFO 0x01
172#define CHIP_RESET 0x02
173#define SCSI_RESET 0x03
174#define RESELECT 0x40
175#define SELECT_NO_ATN 0x41
176#define SELECT_ATN 0x42
177#define SELECT_ATN_STOP 0x43
178#define ENABLE_SEL 0x44
179#define DISABLE_SEL 0x45
180#define SELECT_ATN3 0x46
181#define RESELECT3 0x47
182#define TRANSFER_INFO 0x10
183#define INIT_CMD_COMPLETE 0x11
184#define MSG_ACCEPT 0x12
185#define TRANSFER_PAD 0x18
186#define SET_ATN 0x1a
187#define RESET_ATN 0x1b
188#define SEND_MSG 0x20
189#define SEND_STATUS 0x21
190#define SEND_DATA 0x22
191#define DISCONN_SEQ 0x23
192#define TERMINATE_SEQ 0x24
193#define TARG_CMD_COMPLETE 0x25
194#define DISCONN 0x27
195#define RECV_MSG 0x28
196#define RECV_CMD 0x29
197#define RECV_DATA 0x2a
198#define RECV_CMD_SEQ 0x2b
199#define TARGET_ABORT_DMA 0x04
200
201/* ================================================================== */
202
203struct scsi_info_t {
Dominik Brodowskifd238232006-03-05 10:45:09 +0100204 struct pcmcia_device *p_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 dev_node_t node;
206 struct Scsi_Host *host;
207 unsigned short manf_id;
208};
209
210/*
211* Repository for per-instance host data.
212*/
213struct sym53c500_data {
214 struct scsi_cmnd *current_SC;
215 int fast_pio;
216};
217
218enum Phase {
219 idle,
220 data_out,
221 data_in,
222 command_ph,
223 status_ph,
224 message_out,
225 message_in
226};
227
228/* ================================================================== */
229
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230static void
231chip_init(int io_port)
232{
233 REG1(io_port);
234 outb(0x01, io_port + PIO_STATUS);
235 outb(0x00, io_port + PIO_FLAG);
236
237 outb(C4_IMG, io_port + CONFIG4); /* REG0(io_port); */
238 outb(C3_IMG, io_port + CONFIG3);
239 outb(C2_IMG, io_port + CONFIG2);
240 outb(C1_IMG, io_port + CONFIG1);
241
242 outb(0x05, io_port + CLKCONV); /* clock conversion factor */
243 outb(0x9C, io_port + SRTIMOUT); /* Selection timeout */
244 outb(0x05, io_port + SYNCPRD); /* Synchronous transfer period */
245 outb(SYNC_MODE, io_port + SYNCOFF); /* synchronous mode */
246}
247
248static void
249SYM53C500_int_host_reset(int io_port)
250{
251 outb(C4_IMG, io_port + CONFIG4); /* REG0(io_port); */
252 outb(CHIP_RESET, io_port + CMD_REG);
253 outb(SCSI_NOP, io_port + CMD_REG); /* required after reset */
254 outb(SCSI_RESET, io_port + CMD_REG);
255 chip_init(io_port);
256}
257
258static __inline__ int
259SYM53C500_pio_read(int fast_pio, int base, unsigned char *request, unsigned int reqlen)
260{
261 int i;
262 int len; /* current scsi fifo size */
263
264 REG1(base);
265 while (reqlen) {
266 i = inb(base + PIO_STATUS);
267 /* VDEB(printk("pio_status=%x\n", i)); */
268 if (i & 0x80)
269 return 0;
270
271 switch (i & 0x1e) {
272 default:
273 case 0x10: /* fifo empty */
274 len = 0;
275 break;
276 case 0x0:
277 len = 1;
278 break;
279 case 0x8: /* fifo 1/3 full */
280 len = 42;
281 break;
282 case 0xc: /* fifo 2/3 full */
283 len = 84;
284 break;
285 case 0xe: /* fifo full */
286 len = 128;
287 break;
288 }
289
290 if ((i & 0x40) && len == 0) { /* fifo empty and interrupt occurred */
291 return 0;
292 }
293
294 if (len) {
295 if (len > reqlen)
296 len = reqlen;
297
298 if (fast_pio && len > 3) {
299 insl(base + PIO_FIFO, request, len >> 2);
300 request += len & 0xfc;
301 reqlen -= len & 0xfc;
302 } else {
303 while (len--) {
304 *request++ = inb(base + PIO_FIFO);
305 reqlen--;
306 }
307 }
308 }
309 }
310 return 0;
311}
312
313static __inline__ int
314SYM53C500_pio_write(int fast_pio, int base, unsigned char *request, unsigned int reqlen)
315{
316 int i = 0;
317 int len; /* current scsi fifo size */
318
319 REG1(base);
320 while (reqlen && !(i & 0x40)) {
321 i = inb(base + PIO_STATUS);
322 /* VDEB(printk("pio_status=%x\n", i)); */
323 if (i & 0x80) /* error */
324 return 0;
325
326 switch (i & 0x1e) {
327 case 0x10:
328 len = 128;
329 break;
330 case 0x0:
331 len = 84;
332 break;
333 case 0x8:
334 len = 42;
335 break;
336 case 0xc:
337 len = 1;
338 break;
339 default:
340 case 0xe:
341 len = 0;
342 break;
343 }
344
345 if (len) {
346 if (len > reqlen)
347 len = reqlen;
348
349 if (fast_pio && len > 3) {
350 outsl(base + PIO_FIFO, request, len >> 2);
351 request += len & 0xfc;
352 reqlen -= len & 0xfc;
353 } else {
354 while (len--) {
355 outb(*request++, base + PIO_FIFO);
356 reqlen--;
357 }
358 }
359 }
360 }
361 return 0;
362}
363
364static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100365SYM53C500_intr(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366{
367 unsigned long flags;
368 struct Scsi_Host *dev = dev_id;
369 DEB(unsigned char fifo_size;)
370 DEB(unsigned char seq_reg;)
371 unsigned char status, int_reg;
372 unsigned char pio_status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 int port_base = dev->io_port;
374 struct sym53c500_data *data =
375 (struct sym53c500_data *)dev->hostdata;
376 struct scsi_cmnd *curSC = data->current_SC;
377 int fast_pio = data->fast_pio;
378
379 spin_lock_irqsave(dev->host_lock, flags);
380
381 VDEB(printk("SYM53C500_intr called\n"));
382
383 REG1(port_base);
384 pio_status = inb(port_base + PIO_STATUS);
385 REG0(port_base);
386 status = inb(port_base + STAT_REG);
387 DEB(seq_reg = inb(port_base + SEQ_REG));
388 int_reg = inb(port_base + INT_REG);
389 DEB(fifo_size = inb(port_base + FIFO_FLAGS) & 0x1f);
390
391#if SYM53C500_DEBUG
392 printk("status=%02x, seq_reg=%02x, int_reg=%02x, fifo_size=%02x",
393 status, seq_reg, int_reg, fifo_size);
394 printk(", pio=%02x\n", pio_status);
395#endif /* SYM53C500_DEBUG */
396
397 if (int_reg & 0x80) { /* SCSI reset intr */
398 DEB(printk("SYM53C500: reset intr received\n"));
399 curSC->result = DID_RESET << 16;
400 goto idle_out;
401 }
402
403 if (pio_status & 0x80) {
404 printk("SYM53C500: Warning: PIO error!\n");
405 curSC->result = DID_ERROR << 16;
406 goto idle_out;
407 }
408
409 if (status & 0x20) { /* Parity error */
410 printk("SYM53C500: Warning: parity error!\n");
411 curSC->result = DID_PARITY << 16;
412 goto idle_out;
413 }
414
415 if (status & 0x40) { /* Gross error */
416 printk("SYM53C500: Warning: gross error!\n");
417 curSC->result = DID_ERROR << 16;
418 goto idle_out;
419 }
420
421 if (int_reg & 0x20) { /* Disconnect */
422 DEB(printk("SYM53C500: disconnect intr received\n"));
423 if (curSC->SCp.phase != message_in) { /* Unexpected disconnect */
424 curSC->result = DID_NO_CONNECT << 16;
425 } else { /* Command complete, return status and message */
426 curSC->result = (curSC->SCp.Status & 0xff)
427 | ((curSC->SCp.Message & 0xff) << 8) | (DID_OK << 16);
428 }
429 goto idle_out;
430 }
431
432 switch (status & 0x07) { /* scsi phase */
433 case 0x00: /* DATA-OUT */
434 if (int_reg & 0x10) { /* Target requesting info transfer */
FUJITA Tomonori9482ef82007-05-16 05:34:05 +0900435 struct scatterlist *sg;
436 int i;
437
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 curSC->SCp.phase = data_out;
439 VDEB(printk("SYM53C500: Data-Out phase\n"));
440 outb(FLUSH_FIFO, port_base + CMD_REG);
FUJITA Tomonori9482ef82007-05-16 05:34:05 +0900441 LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG);
FUJITA Tomonori9482ef82007-05-16 05:34:05 +0900443
444 scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
445 SYM53C500_pio_write(fast_pio, port_base,
Jens Axboe45711f12007-10-22 21:19:53 +0200446 sg_virt(sg), sg->length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 }
448 REG0(port_base);
449 }
450 break;
451
452 case 0x01: /* DATA-IN */
453 if (int_reg & 0x10) { /* Target requesting info transfer */
FUJITA Tomonori9482ef82007-05-16 05:34:05 +0900454 struct scatterlist *sg;
455 int i;
456
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 curSC->SCp.phase = data_in;
458 VDEB(printk("SYM53C500: Data-In phase\n"));
459 outb(FLUSH_FIFO, port_base + CMD_REG);
FUJITA Tomonori9482ef82007-05-16 05:34:05 +0900460 LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG);
FUJITA Tomonori9482ef82007-05-16 05:34:05 +0900462
463 scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
464 SYM53C500_pio_read(fast_pio, port_base,
Jens Axboe45711f12007-10-22 21:19:53 +0200465 sg_virt(sg), sg->length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 }
467 REG0(port_base);
468 }
469 break;
470
471 case 0x02: /* COMMAND */
472 curSC->SCp.phase = command_ph;
473 printk("SYM53C500: Warning: Unknown interrupt occurred in command phase!\n");
474 break;
475
476 case 0x03: /* STATUS */
477 curSC->SCp.phase = status_ph;
478 VDEB(printk("SYM53C500: Status phase\n"));
479 outb(FLUSH_FIFO, port_base + CMD_REG);
480 outb(INIT_CMD_COMPLETE, port_base + CMD_REG);
481 break;
482
483 case 0x04: /* Reserved */
484 case 0x05: /* Reserved */
485 printk("SYM53C500: WARNING: Reserved phase!!!\n");
486 break;
487
488 case 0x06: /* MESSAGE-OUT */
489 DEB(printk("SYM53C500: Message-Out phase\n"));
490 curSC->SCp.phase = message_out;
491 outb(SET_ATN, port_base + CMD_REG); /* Reject the message */
492 outb(MSG_ACCEPT, port_base + CMD_REG);
493 break;
494
495 case 0x07: /* MESSAGE-IN */
496 VDEB(printk("SYM53C500: Message-In phase\n"));
497 curSC->SCp.phase = message_in;
498
499 curSC->SCp.Status = inb(port_base + SCSI_FIFO);
500 curSC->SCp.Message = inb(port_base + SCSI_FIFO);
501
502 VDEB(printk("SCSI FIFO size=%d\n", inb(port_base + FIFO_FLAGS) & 0x1f));
503 DEB(printk("Status = %02x Message = %02x\n", curSC->SCp.Status, curSC->SCp.Message));
504
505 if (curSC->SCp.Message == SAVE_POINTERS || curSC->SCp.Message == DISCONNECT) {
506 outb(SET_ATN, port_base + CMD_REG); /* Reject message */
507 DEB(printk("Discarding SAVE_POINTERS message\n"));
508 }
509 outb(MSG_ACCEPT, port_base + CMD_REG);
510 break;
511 }
512out:
513 spin_unlock_irqrestore(dev->host_lock, flags);
514 return IRQ_HANDLED;
515
516idle_out:
517 curSC->SCp.phase = idle;
518 curSC->scsi_done(curSC);
519 goto out;
520}
521
522static void
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200523SYM53C500_release(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524{
525 struct scsi_info_t *info = link->priv;
526 struct Scsi_Host *shost = info->host;
527
528 DEBUG(0, "SYM53C500_release(0x%p)\n", link);
529
530 /*
531 * Do this before releasing/freeing resources.
532 */
533 scsi_remove_host(shost);
534
535 /*
536 * Interrupts getting hosed on card removal. Try
537 * the following code, mostly from qlogicfas.c.
538 */
539 if (shost->irq)
540 free_irq(shost->irq, shost);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541 if (shost->io_port && shost->n_io_port)
542 release_region(shost->io_port, shost->n_io_port);
543
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200544 pcmcia_disable_device(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545
546 scsi_host_put(shost);
547} /* SYM53C500_release */
548
549static const char*
550SYM53C500_info(struct Scsi_Host *SChost)
551{
552 static char info_msg[256];
553 struct sym53c500_data *data =
554 (struct sym53c500_data *)SChost->hostdata;
555
556 DEB(printk("SYM53C500_info called\n"));
557 (void)snprintf(info_msg, sizeof(info_msg),
558 "SYM53C500 at 0x%lx, IRQ %d, %s PIO mode.",
559 SChost->io_port, SChost->irq, data->fast_pio ? "fast" : "slow");
560 return (info_msg);
561}
562
563static int
564SYM53C500_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
565{
566 int i;
567 int port_base = SCpnt->device->host->io_port;
568 struct sym53c500_data *data =
569 (struct sym53c500_data *)SCpnt->device->host->hostdata;
570
571 VDEB(printk("SYM53C500_queue called\n"));
572
573 DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n",
574 SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->device->id,
FUJITA Tomonori9482ef82007-05-16 05:34:05 +0900575 SCpnt->device->lun, scsi_bufflen(SCpnt)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576
577 VDEB(for (i = 0; i < SCpnt->cmd_len; i++)
578 printk("cmd[%d]=%02x ", i, SCpnt->cmnd[i]));
579 VDEB(printk("\n"));
580
581 data->current_SC = SCpnt;
582 data->current_SC->scsi_done = done;
583 data->current_SC->SCp.phase = command_ph;
584 data->current_SC->SCp.Status = 0;
585 data->current_SC->SCp.Message = 0;
586
587 /* We are locked here already by the mid layer */
588 REG0(port_base);
Jeff Garzik422c0d62005-10-24 18:05:09 -0400589 outb(scmd_id(SCpnt), port_base + DEST_ID); /* set destination */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 outb(FLUSH_FIFO, port_base + CMD_REG); /* reset the fifos */
591
592 for (i = 0; i < SCpnt->cmd_len; i++) {
593 outb(SCpnt->cmnd[i], port_base + SCSI_FIFO);
594 }
595 outb(SELECT_NO_ATN, port_base + CMD_REG);
596
597 return 0;
598}
599
600static int
601SYM53C500_host_reset(struct scsi_cmnd *SCpnt)
602{
603 int port_base = SCpnt->device->host->io_port;
604
605 DEB(printk("SYM53C500_host_reset called\n"));
Jeff Garzik df0ae242005-05-28 07:57:14 -0400606 spin_lock_irq(SCpnt->device->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607 SYM53C500_int_host_reset(port_base);
Jeff Garzik df0ae242005-05-28 07:57:14 -0400608 spin_unlock_irq(SCpnt->device->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
610 return SUCCESS;
611}
612
613static int
614SYM53C500_biosparm(struct scsi_device *disk,
615 struct block_device *dev,
616 sector_t capacity, int *info_array)
617{
618 int size;
619
620 DEB(printk("SYM53C500_biosparm called\n"));
621
622 size = capacity;
623 info_array[0] = 64; /* heads */
624 info_array[1] = 32; /* sectors */
625 info_array[2] = size >> 11; /* cylinders */
626 if (info_array[2] > 1024) { /* big disk */
627 info_array[0] = 255;
628 info_array[1] = 63;
629 info_array[2] = size / (255 * 63);
630 }
631 return 0;
632}
633
634static ssize_t
Tony Jonesee959b02008-02-22 00:13:36 +0100635SYM53C500_show_pio(struct device *dev, struct device_attribute *attr,
636 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637{
Tony Jonesee959b02008-02-22 00:13:36 +0100638 struct Scsi_Host *SHp = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639 struct sym53c500_data *data =
640 (struct sym53c500_data *)SHp->hostdata;
641
642 return snprintf(buf, 4, "%d\n", data->fast_pio);
643}
644
645static ssize_t
Tony Jonesee959b02008-02-22 00:13:36 +0100646SYM53C500_store_pio(struct device *dev, struct device_attribute *attr,
647 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648{
649 int pio;
Tony Jonesee959b02008-02-22 00:13:36 +0100650 struct Scsi_Host *SHp = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 struct sym53c500_data *data =
652 (struct sym53c500_data *)SHp->hostdata;
653
654 pio = simple_strtoul(buf, NULL, 0);
655 if (pio == 0 || pio == 1) {
656 data->fast_pio = pio;
657 return count;
658 }
659 else
660 return -EINVAL;
661}
662
663/*
664* SCSI HBA device attributes we want to
665* make available via sysfs.
666*/
Tony Jonesee959b02008-02-22 00:13:36 +0100667static struct device_attribute SYM53C500_pio_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 .attr = {
669 .name = "fast_pio",
670 .mode = (S_IRUGO | S_IWUSR),
671 },
672 .show = SYM53C500_show_pio,
673 .store = SYM53C500_store_pio,
674};
675
Tony Jonesee959b02008-02-22 00:13:36 +0100676static struct device_attribute *SYM53C500_shost_attrs[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 &SYM53C500_pio_attr,
678 NULL,
679};
680
681/*
682* scsi_host_template initializer
683*/
684static struct scsi_host_template sym53c500_driver_template = {
685 .module = THIS_MODULE,
686 .name = "SYM53C500",
687 .info = SYM53C500_info,
688 .queuecommand = SYM53C500_queue,
689 .eh_host_reset_handler = SYM53C500_host_reset,
690 .bios_param = SYM53C500_biosparm,
691 .proc_name = "SYM53C500",
692 .can_queue = 1,
693 .this_id = 7,
694 .sg_tablesize = 32,
695 .cmd_per_lun = 1,
696 .use_clustering = ENABLE_CLUSTERING,
697 .shost_attrs = SYM53C500_shost_attrs
698};
699
700#define CS_CHECK(fn, ret) \
701do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
702
Dominik Brodowski0e6f9d22008-07-29 08:38:55 +0200703static int SYM53C500_config_check(struct pcmcia_device *p_dev,
704 cistpl_cftable_entry_t *cfg,
Dominik Brodowski8e2fc392008-08-02 15:30:31 +0200705 cistpl_cftable_entry_t *dflt,
Dominik Brodowskiad913c12008-08-02 16:12:00 +0200706 unsigned int vcc,
Dominik Brodowski0e6f9d22008-07-29 08:38:55 +0200707 void *priv_data)
708{
Dominik Brodowski0e6f9d22008-07-29 08:38:55 +0200709 p_dev->io.BasePort1 = cfg->io.win[0].base;
710 p_dev->io.NumPorts1 = cfg->io.win[0].len;
711
712 if (p_dev->io.BasePort1 == 0)
713 return -ENODEV;
714
715 return pcmcia_request_io(p_dev, &p_dev->io);
716}
717
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200718static int
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200719SYM53C500_config(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 struct scsi_info_t *info = link->priv;
Dominik Brodowski0e6f9d22008-07-29 08:38:55 +0200722 int last_ret, last_fn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 int irq_level, port_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 struct Scsi_Host *host;
725 struct scsi_host_template *tpnt = &sym53c500_driver_template;
726 struct sym53c500_data *data;
727
728 DEBUG(0, "SYM53C500_config(0x%p)\n", link);
729
Dominik Brodowskiaf2b3b52006-10-25 21:49:27 -0400730 info->manf_id = link->manf_id;
731
Dominik Brodowski0e6f9d22008-07-29 08:38:55 +0200732 last_ret = pcmcia_loop_config(link, SYM53C500_config_check, NULL);
733 if (last_ret) {
734 cs_error(link, RequestIO, last_ret);
735 goto failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736 }
737
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200738 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
739 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740
741 /*
742 * That's the trouble with copying liberally from another driver.
743 * Some things probably aren't relevant, and I suspect this entire
744 * section dealing with manufacturer IDs can be scrapped. --rct
745 */
746 if ((info->manf_id == MANFID_MACNICA) ||
747 (info->manf_id == MANFID_PIONEER) ||
748 (info->manf_id == 0x0098)) {
749 /* set ATAcmd */
750 outb(0xb4, link->io.BasePort1 + 0xd);
751 outb(0x24, link->io.BasePort1 + 0x9);
752 outb(0x04, link->io.BasePort1 + 0xd);
753 }
754
755 /*
756 * irq_level == 0 implies tpnt->can_queue == 0, which
757 * is not supported in 2.6. Thus, only irq_level > 0
758 * will be allowed.
759 *
760 * Possible port_base values are as follows:
761 *
762 * 0x130, 0x230, 0x280, 0x290,
763 * 0x320, 0x330, 0x340, 0x350
764 */
765 port_base = link->io.BasePort1;
766 irq_level = link->irq.AssignedIRQ;
767
768 DEB(printk("SYM53C500: port_base=0x%x, irq=%d, fast_pio=%d\n",
769 port_base, irq_level, USE_FAST_PIO);)
770
771 chip_init(port_base);
772
773 host = scsi_host_alloc(tpnt, sizeof(struct sym53c500_data));
774 if (!host) {
775 printk("SYM53C500: Unable to register host, giving up.\n");
776 goto err_release;
777 }
778
779 data = (struct sym53c500_data *)host->hostdata;
780
781 if (irq_level > 0) {
Thomas Gleixner1d6f3592006-07-01 19:29:42 -0700782 if (request_irq(irq_level, SYM53C500_intr, IRQF_SHARED, "SYM53C500", host)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783 printk("SYM53C500: unable to allocate IRQ %d\n", irq_level);
784 goto err_free_scsi;
785 }
786 DEB(printk("SYM53C500: allocated IRQ %d\n", irq_level));
787 } else if (irq_level == 0) {
788 DEB(printk("SYM53C500: No interrupts detected\n"));
789 goto err_free_scsi;
790 } else {
791 DEB(printk("SYM53C500: Shouldn't get here!\n"));
792 goto err_free_scsi;
793 }
794
795 host->unique_id = port_base;
796 host->irq = irq_level;
797 host->io_port = port_base;
798 host->n_io_port = 0x10;
799 host->dma_channel = -1;
800
801 /*
802 * Note fast_pio is set to USE_FAST_PIO by
803 * default, but can be changed via "sysfs".
804 */
805 data->fast_pio = USE_FAST_PIO;
806
807 sprintf(info->node.dev_name, "scsi%d", host->host_no);
Dominik Brodowskifd238232006-03-05 10:45:09 +0100808 link->dev_node = &info->node;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809 info->host = host;
810
811 if (scsi_add_host(host, NULL))
812 goto err_free_irq;
813
814 scsi_scan_host(host);
815
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200816 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817
818err_free_irq:
819 free_irq(irq_level, host);
820err_free_scsi:
821 scsi_host_put(host);
822err_release:
823 release_region(port_base, 0x10);
824 printk(KERN_INFO "sym53c500_cs: no SCSI devices found\n");
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200825 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826
827cs_failed:
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200828 cs_error(link, last_fn, last_ret);
Dominik Brodowski0e6f9d22008-07-29 08:38:55 +0200829failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830 SYM53C500_release(link);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200831 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832} /* SYM53C500_config */
833
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200834static int sym53c500_resume(struct pcmcia_device *link)
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100835{
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100836 struct scsi_info_t *info = link->priv;
837
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100838 /* See earlier comment about manufacturer IDs. */
839 if ((info->manf_id == MANFID_MACNICA) ||
840 (info->manf_id == MANFID_PIONEER) ||
841 (info->manf_id == 0x0098)) {
842 outb(0x80, link->io.BasePort1 + 0xd);
843 outb(0x24, link->io.BasePort1 + 0x9);
844 outb(0x04, link->io.BasePort1 + 0xd);
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100845 }
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100846 /*
847 * If things don't work after a "resume",
848 * this is a good place to start looking.
849 */
850 SYM53C500_int_host_reset(link->io.BasePort1);
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100851
852 return 0;
853}
854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855static void
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200856SYM53C500_detach(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 DEBUG(0, "SYM53C500_detach(0x%p)\n", link);
859
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100860 SYM53C500_release(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862 kfree(link->priv);
863 link->priv = NULL;
864} /* SYM53C500_detach */
865
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100866static int
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200867SYM53C500_probe(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868{
869 struct scsi_info_t *info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
871 DEBUG(0, "SYM53C500_attach()\n");
872
873 /* Create new SCSI device */
Yoann Padioleaudd00cc42007-07-19 01:49:03 -0700874 info = kzalloc(sizeof(*info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 if (!info)
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100876 return -ENOMEM;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200877 info->p_dev = link;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878 link->priv = info;
879 link->io.NumPorts1 = 16;
880 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
881 link->io.IOAddrLines = 10;
882 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
883 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
884 link->conf.Attributes = CONF_ENABLE_IRQ;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 link->conf.IntType = INT_MEMORY_AND_IO;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200887 return SYM53C500_config(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888} /* SYM53C500_attach */
889
890MODULE_AUTHOR("Bob Tracy <rct@frus.com>");
891MODULE_DESCRIPTION("SYM53C500 PCMCIA SCSI driver");
892MODULE_LICENSE("GPL");
893
Dominik Brodowski2a355d02005-06-27 16:28:25 -0700894static struct pcmcia_device_id sym53c500_ids[] = {
895 PCMCIA_DEVICE_PROD_ID12("BASICS by New Media Corporation", "SCSI Sym53C500", 0x23c78a9d, 0x0099e7f7),
896 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "SCSI Bus Toaster Sym53C500", 0x085a850b, 0x45432eb8),
897 PCMCIA_DEVICE_PROD_ID2("SCSI9000", 0x21648f44),
898 PCMCIA_DEVICE_NULL,
899};
900MODULE_DEVICE_TABLE(pcmcia, sym53c500_ids);
901
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902static struct pcmcia_driver sym53c500_cs_driver = {
903 .owner = THIS_MODULE,
904 .drv = {
905 .name = "sym53c500_cs",
906 },
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200907 .probe = SYM53C500_probe,
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100908 .remove = SYM53C500_detach,
Dominik Brodowski2a355d02005-06-27 16:28:25 -0700909 .id_table = sym53c500_ids,
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100910 .resume = sym53c500_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911};
912
913static int __init
914init_sym53c500_cs(void)
915{
916 return pcmcia_register_driver(&sym53c500_cs_driver);
917}
918
919static void __exit
920exit_sym53c500_cs(void)
921{
922 pcmcia_unregister_driver(&sym53c500_cs_driver);
923}
924
925module_init(init_sym53c500_cs);
926module_exit(exit_sym53c500_cs);