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1da177e4
LT
1/*
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>
1da177e4
LT
57#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 {
fd238232 204 struct pcmcia_device *p_dev;
1da177e4
LT
205 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
1da177e4
LT
230static 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
7d12e780 365SYM53C500_intr(int irq, void *dev_id)
1da177e4
LT
366{
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;
1da177e4
LT
373 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 */
9482ef85
FT
435 struct scatterlist *sg;
436 int i;
437
1da177e4
LT
438 curSC->SCp.phase = data_out;
439 VDEB(printk("SYM53C500: Data-Out phase\n"));
440 outb(FLUSH_FIFO, port_base + CMD_REG);
9482ef85 441 LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */
1da177e4 442 outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG);
9482ef85
FT
443
444 scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
445 SYM53C500_pio_write(fast_pio, port_base,
446 page_address(sg->page) + sg->offset,
447 sg->length);
1da177e4
LT
448 }
449 REG0(port_base);
450 }
451 break;
452
453 case 0x01: /* DATA-IN */
454 if (int_reg & 0x10) { /* Target requesting info transfer */
9482ef85
FT
455 struct scatterlist *sg;
456 int i;
457
1da177e4
LT
458 curSC->SCp.phase = data_in;
459 VDEB(printk("SYM53C500: Data-In phase\n"));
460 outb(FLUSH_FIFO, port_base + CMD_REG);
9482ef85 461 LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */
1da177e4 462 outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG);
9482ef85
FT
463
464 scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
465 SYM53C500_pio_read(fast_pio, port_base,
466 page_address(sg->page) + sg->offset,
467 sg->length);
1da177e4
LT
468 }
469 REG0(port_base);
470 }
471 break;
472
473 case 0x02: /* COMMAND */
474 curSC->SCp.phase = command_ph;
475 printk("SYM53C500: Warning: Unknown interrupt occurred in command phase!\n");
476 break;
477
478 case 0x03: /* STATUS */
479 curSC->SCp.phase = status_ph;
480 VDEB(printk("SYM53C500: Status phase\n"));
481 outb(FLUSH_FIFO, port_base + CMD_REG);
482 outb(INIT_CMD_COMPLETE, port_base + CMD_REG);
483 break;
484
485 case 0x04: /* Reserved */
486 case 0x05: /* Reserved */
487 printk("SYM53C500: WARNING: Reserved phase!!!\n");
488 break;
489
490 case 0x06: /* MESSAGE-OUT */
491 DEB(printk("SYM53C500: Message-Out phase\n"));
492 curSC->SCp.phase = message_out;
493 outb(SET_ATN, port_base + CMD_REG); /* Reject the message */
494 outb(MSG_ACCEPT, port_base + CMD_REG);
495 break;
496
497 case 0x07: /* MESSAGE-IN */
498 VDEB(printk("SYM53C500: Message-In phase\n"));
499 curSC->SCp.phase = message_in;
500
501 curSC->SCp.Status = inb(port_base + SCSI_FIFO);
502 curSC->SCp.Message = inb(port_base + SCSI_FIFO);
503
504 VDEB(printk("SCSI FIFO size=%d\n", inb(port_base + FIFO_FLAGS) & 0x1f));
505 DEB(printk("Status = %02x Message = %02x\n", curSC->SCp.Status, curSC->SCp.Message));
506
507 if (curSC->SCp.Message == SAVE_POINTERS || curSC->SCp.Message == DISCONNECT) {
508 outb(SET_ATN, port_base + CMD_REG); /* Reject message */
509 DEB(printk("Discarding SAVE_POINTERS message\n"));
510 }
511 outb(MSG_ACCEPT, port_base + CMD_REG);
512 break;
513 }
514out:
515 spin_unlock_irqrestore(dev->host_lock, flags);
516 return IRQ_HANDLED;
517
518idle_out:
519 curSC->SCp.phase = idle;
520 curSC->scsi_done(curSC);
521 goto out;
522}
523
524static void
fba395ee 525SYM53C500_release(struct pcmcia_device *link)
1da177e4
LT
526{
527 struct scsi_info_t *info = link->priv;
528 struct Scsi_Host *shost = info->host;
529
530 DEBUG(0, "SYM53C500_release(0x%p)\n", link);
531
532 /*
533 * Do this before releasing/freeing resources.
534 */
535 scsi_remove_host(shost);
536
537 /*
538 * Interrupts getting hosed on card removal. Try
539 * the following code, mostly from qlogicfas.c.
540 */
541 if (shost->irq)
542 free_irq(shost->irq, shost);
1da177e4
LT
543 if (shost->io_port && shost->n_io_port)
544 release_region(shost->io_port, shost->n_io_port);
545
fba395ee 546 pcmcia_disable_device(link);
1da177e4
LT
547
548 scsi_host_put(shost);
549} /* SYM53C500_release */
550
551static const char*
552SYM53C500_info(struct Scsi_Host *SChost)
553{
554 static char info_msg[256];
555 struct sym53c500_data *data =
556 (struct sym53c500_data *)SChost->hostdata;
557
558 DEB(printk("SYM53C500_info called\n"));
559 (void)snprintf(info_msg, sizeof(info_msg),
560 "SYM53C500 at 0x%lx, IRQ %d, %s PIO mode.",
561 SChost->io_port, SChost->irq, data->fast_pio ? "fast" : "slow");
562 return (info_msg);
563}
564
565static int
566SYM53C500_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
567{
568 int i;
569 int port_base = SCpnt->device->host->io_port;
570 struct sym53c500_data *data =
571 (struct sym53c500_data *)SCpnt->device->host->hostdata;
572
573 VDEB(printk("SYM53C500_queue called\n"));
574
575 DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n",
576 SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->device->id,
9482ef85 577 SCpnt->device->lun, scsi_bufflen(SCpnt)));
1da177e4
LT
578
579 VDEB(for (i = 0; i < SCpnt->cmd_len; i++)
580 printk("cmd[%d]=%02x ", i, SCpnt->cmnd[i]));
581 VDEB(printk("\n"));
582
583 data->current_SC = SCpnt;
584 data->current_SC->scsi_done = done;
585 data->current_SC->SCp.phase = command_ph;
586 data->current_SC->SCp.Status = 0;
587 data->current_SC->SCp.Message = 0;
588
589 /* We are locked here already by the mid layer */
590 REG0(port_base);
422c0d61 591 outb(scmd_id(SCpnt), port_base + DEST_ID); /* set destination */
1da177e4
LT
592 outb(FLUSH_FIFO, port_base + CMD_REG); /* reset the fifos */
593
594 for (i = 0; i < SCpnt->cmd_len; i++) {
595 outb(SCpnt->cmnd[i], port_base + SCSI_FIFO);
596 }
597 outb(SELECT_NO_ATN, port_base + CMD_REG);
598
599 return 0;
600}
601
602static int
603SYM53C500_host_reset(struct scsi_cmnd *SCpnt)
604{
605 int port_base = SCpnt->device->host->io_port;
606
607 DEB(printk("SYM53C500_host_reset called\n"));
df0ae249 608 spin_lock_irq(SCpnt->device->host->host_lock);
1da177e4 609 SYM53C500_int_host_reset(port_base);
df0ae249 610 spin_unlock_irq(SCpnt->device->host->host_lock);
1da177e4
LT
611
612 return SUCCESS;
613}
614
615static int
616SYM53C500_biosparm(struct scsi_device *disk,
617 struct block_device *dev,
618 sector_t capacity, int *info_array)
619{
620 int size;
621
622 DEB(printk("SYM53C500_biosparm called\n"));
623
624 size = capacity;
625 info_array[0] = 64; /* heads */
626 info_array[1] = 32; /* sectors */
627 info_array[2] = size >> 11; /* cylinders */
628 if (info_array[2] > 1024) { /* big disk */
629 info_array[0] = 255;
630 info_array[1] = 63;
631 info_array[2] = size / (255 * 63);
632 }
633 return 0;
634}
635
636static ssize_t
637SYM53C500_show_pio(struct class_device *cdev, char *buf)
638{
639 struct Scsi_Host *SHp = class_to_shost(cdev);
640 struct sym53c500_data *data =
641 (struct sym53c500_data *)SHp->hostdata;
642
643 return snprintf(buf, 4, "%d\n", data->fast_pio);
644}
645
646static ssize_t
647SYM53C500_store_pio(struct class_device *cdev, const char *buf, size_t count)
648{
649 int pio;
650 struct Scsi_Host *SHp = class_to_shost(cdev);
651 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*/
667static struct class_device_attribute SYM53C500_pio_attr = {
668 .attr = {
669 .name = "fast_pio",
670 .mode = (S_IRUGO | S_IWUSR),
671 },
672 .show = SYM53C500_show_pio,
673 .store = SYM53C500_store_pio,
674};
675
676static struct class_device_attribute *SYM53C500_shost_attrs[] = {
677 &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
15b99ac1 703static int
fba395ee 704SYM53C500_config(struct pcmcia_device *link)
1da177e4 705{
1da177e4
LT
706 struct scsi_info_t *info = link->priv;
707 tuple_t tuple;
708 cisparse_t parse;
709 int i, last_ret, last_fn;
710 int irq_level, port_base;
711 unsigned short tuple_data[32];
712 struct Scsi_Host *host;
713 struct scsi_host_template *tpnt = &sym53c500_driver_template;
714 struct sym53c500_data *data;
715
716 DEBUG(0, "SYM53C500_config(0x%p)\n", link);
717
af2b3b50
DB
718 info->manf_id = link->manf_id;
719
1da177e4
LT
720 tuple.TupleData = (cisdata_t *)tuple_data;
721 tuple.TupleDataMax = 64;
722 tuple.TupleOffset = 0;
1da177e4 723
1da177e4 724 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
fba395ee 725 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
1da177e4 726 while (1) {
fba395ee
DB
727 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
728 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
1da177e4
LT
729 goto next_entry;
730 link->conf.ConfigIndex = parse.cftable_entry.index;
731 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
732 link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
733
734 if (link->io.BasePort1 != 0) {
fba395ee 735 i = pcmcia_request_io(link, &link->io);
1da177e4
LT
736 if (i == CS_SUCCESS)
737 break;
738 }
739next_entry:
fba395ee 740 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
1da177e4
LT
741 }
742
fba395ee
DB
743 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
744 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4
LT
745
746 /*
747 * That's the trouble with copying liberally from another driver.
748 * Some things probably aren't relevant, and I suspect this entire
749 * section dealing with manufacturer IDs can be scrapped. --rct
750 */
751 if ((info->manf_id == MANFID_MACNICA) ||
752 (info->manf_id == MANFID_PIONEER) ||
753 (info->manf_id == 0x0098)) {
754 /* set ATAcmd */
755 outb(0xb4, link->io.BasePort1 + 0xd);
756 outb(0x24, link->io.BasePort1 + 0x9);
757 outb(0x04, link->io.BasePort1 + 0xd);
758 }
759
760 /*
761 * irq_level == 0 implies tpnt->can_queue == 0, which
762 * is not supported in 2.6. Thus, only irq_level > 0
763 * will be allowed.
764 *
765 * Possible port_base values are as follows:
766 *
767 * 0x130, 0x230, 0x280, 0x290,
768 * 0x320, 0x330, 0x340, 0x350
769 */
770 port_base = link->io.BasePort1;
771 irq_level = link->irq.AssignedIRQ;
772
773 DEB(printk("SYM53C500: port_base=0x%x, irq=%d, fast_pio=%d\n",
774 port_base, irq_level, USE_FAST_PIO);)
775
776 chip_init(port_base);
777
778 host = scsi_host_alloc(tpnt, sizeof(struct sym53c500_data));
779 if (!host) {
780 printk("SYM53C500: Unable to register host, giving up.\n");
781 goto err_release;
782 }
783
784 data = (struct sym53c500_data *)host->hostdata;
785
786 if (irq_level > 0) {
1d6f359a 787 if (request_irq(irq_level, SYM53C500_intr, IRQF_SHARED, "SYM53C500", host)) {
1da177e4
LT
788 printk("SYM53C500: unable to allocate IRQ %d\n", irq_level);
789 goto err_free_scsi;
790 }
791 DEB(printk("SYM53C500: allocated IRQ %d\n", irq_level));
792 } else if (irq_level == 0) {
793 DEB(printk("SYM53C500: No interrupts detected\n"));
794 goto err_free_scsi;
795 } else {
796 DEB(printk("SYM53C500: Shouldn't get here!\n"));
797 goto err_free_scsi;
798 }
799
800 host->unique_id = port_base;
801 host->irq = irq_level;
802 host->io_port = port_base;
803 host->n_io_port = 0x10;
804 host->dma_channel = -1;
805
806 /*
807 * Note fast_pio is set to USE_FAST_PIO by
808 * default, but can be changed via "sysfs".
809 */
810 data->fast_pio = USE_FAST_PIO;
811
812 sprintf(info->node.dev_name, "scsi%d", host->host_no);
fd238232 813 link->dev_node = &info->node;
1da177e4
LT
814 info->host = host;
815
816 if (scsi_add_host(host, NULL))
817 goto err_free_irq;
818
819 scsi_scan_host(host);
820
15b99ac1 821 return 0;
1da177e4
LT
822
823err_free_irq:
824 free_irq(irq_level, host);
825err_free_scsi:
826 scsi_host_put(host);
827err_release:
828 release_region(port_base, 0x10);
829 printk(KERN_INFO "sym53c500_cs: no SCSI devices found\n");
15b99ac1 830 return -ENODEV;
1da177e4
LT
831
832cs_failed:
fba395ee 833 cs_error(link, last_fn, last_ret);
1da177e4 834 SYM53C500_release(link);
15b99ac1 835 return -ENODEV;
1da177e4
LT
836} /* SYM53C500_config */
837
fba395ee 838static int sym53c500_resume(struct pcmcia_device *link)
98e4c28b 839{
98e4c28b
DB
840 struct scsi_info_t *info = link->priv;
841
e2d40963
DB
842 /* See earlier comment about manufacturer IDs. */
843 if ((info->manf_id == MANFID_MACNICA) ||
844 (info->manf_id == MANFID_PIONEER) ||
845 (info->manf_id == 0x0098)) {
846 outb(0x80, link->io.BasePort1 + 0xd);
847 outb(0x24, link->io.BasePort1 + 0x9);
848 outb(0x04, link->io.BasePort1 + 0xd);
98e4c28b 849 }
e2d40963
DB
850 /*
851 * If things don't work after a "resume",
852 * this is a good place to start looking.
853 */
854 SYM53C500_int_host_reset(link->io.BasePort1);
98e4c28b
DB
855
856 return 0;
857}
858
1da177e4 859static void
fba395ee 860SYM53C500_detach(struct pcmcia_device *link)
1da177e4 861{
1da177e4
LT
862 DEBUG(0, "SYM53C500_detach(0x%p)\n", link);
863
e2d40963 864 SYM53C500_release(link);
1da177e4 865
1da177e4
LT
866 kfree(link->priv);
867 link->priv = NULL;
868} /* SYM53C500_detach */
869
f8cfa618 870static int
15b99ac1 871SYM53C500_probe(struct pcmcia_device *link)
1da177e4
LT
872{
873 struct scsi_info_t *info;
1da177e4
LT
874
875 DEBUG(0, "SYM53C500_attach()\n");
876
877 /* Create new SCSI device */
dd00cc48 878 info = kzalloc(sizeof(*info), GFP_KERNEL);
1da177e4 879 if (!info)
f8cfa618 880 return -ENOMEM;
fba395ee 881 info->p_dev = link;
1da177e4
LT
882 link->priv = info;
883 link->io.NumPorts1 = 16;
884 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
885 link->io.IOAddrLines = 10;
886 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
887 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
888 link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4 889 link->conf.IntType = INT_MEMORY_AND_IO;
1da177e4 890
15b99ac1 891 return SYM53C500_config(link);
1da177e4
LT
892} /* SYM53C500_attach */
893
894MODULE_AUTHOR("Bob Tracy <rct@frus.com>");
895MODULE_DESCRIPTION("SYM53C500 PCMCIA SCSI driver");
896MODULE_LICENSE("GPL");
897
2a355d07
DB
898static struct pcmcia_device_id sym53c500_ids[] = {
899 PCMCIA_DEVICE_PROD_ID12("BASICS by New Media Corporation", "SCSI Sym53C500", 0x23c78a9d, 0x0099e7f7),
900 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "SCSI Bus Toaster Sym53C500", 0x085a850b, 0x45432eb8),
901 PCMCIA_DEVICE_PROD_ID2("SCSI9000", 0x21648f44),
902 PCMCIA_DEVICE_NULL,
903};
904MODULE_DEVICE_TABLE(pcmcia, sym53c500_ids);
905
1da177e4
LT
906static struct pcmcia_driver sym53c500_cs_driver = {
907 .owner = THIS_MODULE,
908 .drv = {
909 .name = "sym53c500_cs",
910 },
15b99ac1 911 .probe = SYM53C500_probe,
cc3b4866 912 .remove = SYM53C500_detach,
2a355d07 913 .id_table = sym53c500_ids,
98e4c28b 914 .resume = sym53c500_resume,
1da177e4
LT
915};
916
917static int __init
918init_sym53c500_cs(void)
919{
920 return pcmcia_register_driver(&sym53c500_cs_driver);
921}
922
923static void __exit
924exit_sym53c500_cs(void)
925{
926 pcmcia_unregister_driver(&sym53c500_cs_driver);
927}
928
929module_init(init_sym53c500_cs);
930module_exit(exit_sym53c500_cs);