Commit | Line | Data |
---|---|---|
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 | ||
1da177e4 LT |
80 | |
81 | /* ================================================================== */ | |
82 | ||
83 | #define SYNC_MODE 0 /* Synchronous transfer mode */ | |
84 | ||
85 | /* Default configuration */ | |
86 | #define C1_IMG 0x07 /* ID=7 */ | |
87 | #define C2_IMG 0x48 /* FE SCSI2 */ | |
88 | #define C3_IMG 0x20 /* CDB */ | |
89 | #define C4_IMG 0x04 /* ANE */ | |
90 | #define C5_IMG 0xa4 /* ? changed from b6= AA PI SIE POL */ | |
91 | #define C7_IMG 0x80 /* added for SYM53C500 t. corner */ | |
92 | ||
93 | /* Hardware Registers: offsets from io_port (base) */ | |
94 | ||
95 | /* Control Register Set 0 */ | |
96 | #define TC_LSB 0x00 /* transfer counter lsb */ | |
97 | #define TC_MSB 0x01 /* transfer counter msb */ | |
98 | #define SCSI_FIFO 0x02 /* scsi fifo register */ | |
99 | #define CMD_REG 0x03 /* command register */ | |
100 | #define STAT_REG 0x04 /* status register */ | |
101 | #define DEST_ID 0x04 /* selection/reselection bus id */ | |
102 | #define INT_REG 0x05 /* interrupt status register */ | |
103 | #define SRTIMOUT 0x05 /* select/reselect timeout reg */ | |
104 | #define SEQ_REG 0x06 /* sequence step register */ | |
105 | #define SYNCPRD 0x06 /* synchronous transfer period */ | |
106 | #define FIFO_FLAGS 0x07 /* indicates # of bytes in fifo */ | |
107 | #define SYNCOFF 0x07 /* synchronous offset register */ | |
108 | #define CONFIG1 0x08 /* configuration register */ | |
109 | #define CLKCONV 0x09 /* clock conversion register */ | |
110 | /* #define TESTREG 0x0A */ /* test mode register */ | |
111 | #define CONFIG2 0x0B /* configuration 2 register */ | |
112 | #define CONFIG3 0x0C /* configuration 3 register */ | |
113 | #define CONFIG4 0x0D /* configuration 4 register */ | |
114 | #define TC_HIGH 0x0E /* transfer counter high */ | |
115 | /* #define FIFO_BOTTOM 0x0F */ /* reserve FIFO byte register */ | |
116 | ||
117 | /* Control Register Set 1 */ | |
118 | /* #define JUMPER_SENSE 0x00 */ /* jumper sense port reg (r/w) */ | |
119 | /* #define SRAM_PTR 0x01 */ /* SRAM address pointer reg (r/w) */ | |
120 | /* #define SRAM_DATA 0x02 */ /* SRAM data register (r/w) */ | |
121 | #define PIO_FIFO 0x04 /* PIO FIFO registers (r/w) */ | |
122 | /* #define PIO_FIFO1 0x05 */ /* */ | |
123 | /* #define PIO_FIFO2 0x06 */ /* */ | |
124 | /* #define PIO_FIFO3 0x07 */ /* */ | |
125 | #define PIO_STATUS 0x08 /* PIO status (r/w) */ | |
126 | /* #define ATA_CMD 0x09 */ /* ATA command/status reg (r/w) */ | |
127 | /* #define ATA_ERR 0x0A */ /* ATA features/error reg (r/w) */ | |
128 | #define PIO_FLAG 0x0B /* PIO flag interrupt enable (r/w) */ | |
129 | #define CONFIG5 0x09 /* configuration 5 register */ | |
130 | /* #define SIGNATURE 0x0E */ /* signature register (r) */ | |
131 | /* #define CONFIG6 0x0F */ /* configuration 6 register (r) */ | |
132 | #define CONFIG7 0x0d | |
133 | ||
134 | /* select register set 0 */ | |
135 | #define REG0(x) (outb(C4_IMG, (x) + CONFIG4)) | |
136 | /* select register set 1 */ | |
137 | #define REG1(x) outb(C7_IMG, (x) + CONFIG7); outb(C5_IMG, (x) + CONFIG5) | |
138 | ||
139 | #if SYM53C500_DEBUG | |
140 | #define DEB(x) x | |
141 | #else | |
142 | #define DEB(x) | |
143 | #endif | |
144 | ||
145 | #if VERBOSE_SYM53C500_DEBUG | |
146 | #define VDEB(x) x | |
147 | #else | |
148 | #define VDEB(x) | |
149 | #endif | |
150 | ||
151 | #define LOAD_DMA_COUNT(x, count) \ | |
152 | outb(count & 0xff, (x) + TC_LSB); \ | |
153 | outb((count >> 8) & 0xff, (x) + TC_MSB); \ | |
154 | outb((count >> 16) & 0xff, (x) + TC_HIGH); | |
155 | ||
156 | /* Chip commands */ | |
157 | #define DMA_OP 0x80 | |
158 | ||
159 | #define SCSI_NOP 0x00 | |
160 | #define FLUSH_FIFO 0x01 | |
161 | #define CHIP_RESET 0x02 | |
162 | #define SCSI_RESET 0x03 | |
163 | #define RESELECT 0x40 | |
164 | #define SELECT_NO_ATN 0x41 | |
165 | #define SELECT_ATN 0x42 | |
166 | #define SELECT_ATN_STOP 0x43 | |
167 | #define ENABLE_SEL 0x44 | |
168 | #define DISABLE_SEL 0x45 | |
169 | #define SELECT_ATN3 0x46 | |
170 | #define RESELECT3 0x47 | |
171 | #define TRANSFER_INFO 0x10 | |
172 | #define INIT_CMD_COMPLETE 0x11 | |
173 | #define MSG_ACCEPT 0x12 | |
174 | #define TRANSFER_PAD 0x18 | |
175 | #define SET_ATN 0x1a | |
176 | #define RESET_ATN 0x1b | |
177 | #define SEND_MSG 0x20 | |
178 | #define SEND_STATUS 0x21 | |
179 | #define SEND_DATA 0x22 | |
180 | #define DISCONN_SEQ 0x23 | |
181 | #define TERMINATE_SEQ 0x24 | |
182 | #define TARG_CMD_COMPLETE 0x25 | |
183 | #define DISCONN 0x27 | |
184 | #define RECV_MSG 0x28 | |
185 | #define RECV_CMD 0x29 | |
186 | #define RECV_DATA 0x2a | |
187 | #define RECV_CMD_SEQ 0x2b | |
188 | #define TARGET_ABORT_DMA 0x04 | |
189 | ||
190 | /* ================================================================== */ | |
191 | ||
192 | struct scsi_info_t { | |
fd238232 | 193 | struct pcmcia_device *p_dev; |
1da177e4 LT |
194 | dev_node_t node; |
195 | struct Scsi_Host *host; | |
196 | unsigned short manf_id; | |
197 | }; | |
198 | ||
199 | /* | |
200 | * Repository for per-instance host data. | |
201 | */ | |
202 | struct sym53c500_data { | |
203 | struct scsi_cmnd *current_SC; | |
204 | int fast_pio; | |
205 | }; | |
206 | ||
207 | enum Phase { | |
208 | idle, | |
209 | data_out, | |
210 | data_in, | |
211 | command_ph, | |
212 | status_ph, | |
213 | message_out, | |
214 | message_in | |
215 | }; | |
216 | ||
217 | /* ================================================================== */ | |
218 | ||
1da177e4 LT |
219 | static void |
220 | chip_init(int io_port) | |
221 | { | |
222 | REG1(io_port); | |
223 | outb(0x01, io_port + PIO_STATUS); | |
224 | outb(0x00, io_port + PIO_FLAG); | |
225 | ||
226 | outb(C4_IMG, io_port + CONFIG4); /* REG0(io_port); */ | |
227 | outb(C3_IMG, io_port + CONFIG3); | |
228 | outb(C2_IMG, io_port + CONFIG2); | |
229 | outb(C1_IMG, io_port + CONFIG1); | |
230 | ||
231 | outb(0x05, io_port + CLKCONV); /* clock conversion factor */ | |
232 | outb(0x9C, io_port + SRTIMOUT); /* Selection timeout */ | |
233 | outb(0x05, io_port + SYNCPRD); /* Synchronous transfer period */ | |
234 | outb(SYNC_MODE, io_port + SYNCOFF); /* synchronous mode */ | |
235 | } | |
236 | ||
237 | static void | |
238 | SYM53C500_int_host_reset(int io_port) | |
239 | { | |
240 | outb(C4_IMG, io_port + CONFIG4); /* REG0(io_port); */ | |
241 | outb(CHIP_RESET, io_port + CMD_REG); | |
242 | outb(SCSI_NOP, io_port + CMD_REG); /* required after reset */ | |
243 | outb(SCSI_RESET, io_port + CMD_REG); | |
244 | chip_init(io_port); | |
245 | } | |
246 | ||
247 | static __inline__ int | |
248 | SYM53C500_pio_read(int fast_pio, int base, unsigned char *request, unsigned int reqlen) | |
249 | { | |
250 | int i; | |
251 | int len; /* current scsi fifo size */ | |
252 | ||
253 | REG1(base); | |
254 | while (reqlen) { | |
255 | i = inb(base + PIO_STATUS); | |
256 | /* VDEB(printk("pio_status=%x\n", i)); */ | |
257 | if (i & 0x80) | |
258 | return 0; | |
259 | ||
260 | switch (i & 0x1e) { | |
261 | default: | |
262 | case 0x10: /* fifo empty */ | |
263 | len = 0; | |
264 | break; | |
265 | case 0x0: | |
266 | len = 1; | |
267 | break; | |
268 | case 0x8: /* fifo 1/3 full */ | |
269 | len = 42; | |
270 | break; | |
271 | case 0xc: /* fifo 2/3 full */ | |
272 | len = 84; | |
273 | break; | |
274 | case 0xe: /* fifo full */ | |
275 | len = 128; | |
276 | break; | |
277 | } | |
278 | ||
279 | if ((i & 0x40) && len == 0) { /* fifo empty and interrupt occurred */ | |
280 | return 0; | |
281 | } | |
282 | ||
283 | if (len) { | |
284 | if (len > reqlen) | |
285 | len = reqlen; | |
286 | ||
287 | if (fast_pio && len > 3) { | |
288 | insl(base + PIO_FIFO, request, len >> 2); | |
289 | request += len & 0xfc; | |
290 | reqlen -= len & 0xfc; | |
291 | } else { | |
292 | while (len--) { | |
293 | *request++ = inb(base + PIO_FIFO); | |
294 | reqlen--; | |
295 | } | |
296 | } | |
297 | } | |
298 | } | |
299 | return 0; | |
300 | } | |
301 | ||
302 | static __inline__ int | |
303 | SYM53C500_pio_write(int fast_pio, int base, unsigned char *request, unsigned int reqlen) | |
304 | { | |
305 | int i = 0; | |
306 | int len; /* current scsi fifo size */ | |
307 | ||
308 | REG1(base); | |
309 | while (reqlen && !(i & 0x40)) { | |
310 | i = inb(base + PIO_STATUS); | |
311 | /* VDEB(printk("pio_status=%x\n", i)); */ | |
312 | if (i & 0x80) /* error */ | |
313 | return 0; | |
314 | ||
315 | switch (i & 0x1e) { | |
316 | case 0x10: | |
317 | len = 128; | |
318 | break; | |
319 | case 0x0: | |
320 | len = 84; | |
321 | break; | |
322 | case 0x8: | |
323 | len = 42; | |
324 | break; | |
325 | case 0xc: | |
326 | len = 1; | |
327 | break; | |
328 | default: | |
329 | case 0xe: | |
330 | len = 0; | |
331 | break; | |
332 | } | |
333 | ||
334 | if (len) { | |
335 | if (len > reqlen) | |
336 | len = reqlen; | |
337 | ||
338 | if (fast_pio && len > 3) { | |
339 | outsl(base + PIO_FIFO, request, len >> 2); | |
340 | request += len & 0xfc; | |
341 | reqlen -= len & 0xfc; | |
342 | } else { | |
343 | while (len--) { | |
344 | outb(*request++, base + PIO_FIFO); | |
345 | reqlen--; | |
346 | } | |
347 | } | |
348 | } | |
349 | } | |
350 | return 0; | |
351 | } | |
352 | ||
353 | static irqreturn_t | |
7d12e780 | 354 | SYM53C500_intr(int irq, void *dev_id) |
1da177e4 LT |
355 | { |
356 | unsigned long flags; | |
357 | struct Scsi_Host *dev = dev_id; | |
358 | DEB(unsigned char fifo_size;) | |
359 | DEB(unsigned char seq_reg;) | |
360 | unsigned char status, int_reg; | |
361 | unsigned char pio_status; | |
1da177e4 LT |
362 | int port_base = dev->io_port; |
363 | struct sym53c500_data *data = | |
364 | (struct sym53c500_data *)dev->hostdata; | |
365 | struct scsi_cmnd *curSC = data->current_SC; | |
366 | int fast_pio = data->fast_pio; | |
367 | ||
368 | spin_lock_irqsave(dev->host_lock, flags); | |
369 | ||
370 | VDEB(printk("SYM53C500_intr called\n")); | |
371 | ||
372 | REG1(port_base); | |
373 | pio_status = inb(port_base + PIO_STATUS); | |
374 | REG0(port_base); | |
375 | status = inb(port_base + STAT_REG); | |
376 | DEB(seq_reg = inb(port_base + SEQ_REG)); | |
377 | int_reg = inb(port_base + INT_REG); | |
378 | DEB(fifo_size = inb(port_base + FIFO_FLAGS) & 0x1f); | |
379 | ||
380 | #if SYM53C500_DEBUG | |
381 | printk("status=%02x, seq_reg=%02x, int_reg=%02x, fifo_size=%02x", | |
382 | status, seq_reg, int_reg, fifo_size); | |
383 | printk(", pio=%02x\n", pio_status); | |
384 | #endif /* SYM53C500_DEBUG */ | |
385 | ||
386 | if (int_reg & 0x80) { /* SCSI reset intr */ | |
387 | DEB(printk("SYM53C500: reset intr received\n")); | |
388 | curSC->result = DID_RESET << 16; | |
389 | goto idle_out; | |
390 | } | |
391 | ||
392 | if (pio_status & 0x80) { | |
393 | printk("SYM53C500: Warning: PIO error!\n"); | |
394 | curSC->result = DID_ERROR << 16; | |
395 | goto idle_out; | |
396 | } | |
397 | ||
398 | if (status & 0x20) { /* Parity error */ | |
399 | printk("SYM53C500: Warning: parity error!\n"); | |
400 | curSC->result = DID_PARITY << 16; | |
401 | goto idle_out; | |
402 | } | |
403 | ||
404 | if (status & 0x40) { /* Gross error */ | |
405 | printk("SYM53C500: Warning: gross error!\n"); | |
406 | curSC->result = DID_ERROR << 16; | |
407 | goto idle_out; | |
408 | } | |
409 | ||
410 | if (int_reg & 0x20) { /* Disconnect */ | |
411 | DEB(printk("SYM53C500: disconnect intr received\n")); | |
412 | if (curSC->SCp.phase != message_in) { /* Unexpected disconnect */ | |
413 | curSC->result = DID_NO_CONNECT << 16; | |
414 | } else { /* Command complete, return status and message */ | |
415 | curSC->result = (curSC->SCp.Status & 0xff) | |
416 | | ((curSC->SCp.Message & 0xff) << 8) | (DID_OK << 16); | |
417 | } | |
418 | goto idle_out; | |
419 | } | |
420 | ||
421 | switch (status & 0x07) { /* scsi phase */ | |
422 | case 0x00: /* DATA-OUT */ | |
423 | if (int_reg & 0x10) { /* Target requesting info transfer */ | |
9482ef85 FT |
424 | struct scatterlist *sg; |
425 | int i; | |
426 | ||
1da177e4 LT |
427 | curSC->SCp.phase = data_out; |
428 | VDEB(printk("SYM53C500: Data-Out phase\n")); | |
429 | outb(FLUSH_FIFO, port_base + CMD_REG); | |
9482ef85 | 430 | LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */ |
1da177e4 | 431 | outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG); |
9482ef85 FT |
432 | |
433 | scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) { | |
434 | SYM53C500_pio_write(fast_pio, port_base, | |
45711f1a | 435 | sg_virt(sg), sg->length); |
1da177e4 LT |
436 | } |
437 | REG0(port_base); | |
438 | } | |
439 | break; | |
440 | ||
441 | case 0x01: /* DATA-IN */ | |
442 | if (int_reg & 0x10) { /* Target requesting info transfer */ | |
9482ef85 FT |
443 | struct scatterlist *sg; |
444 | int i; | |
445 | ||
1da177e4 LT |
446 | curSC->SCp.phase = data_in; |
447 | VDEB(printk("SYM53C500: Data-In phase\n")); | |
448 | outb(FLUSH_FIFO, port_base + CMD_REG); | |
9482ef85 | 449 | LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC)); /* Max transfer size */ |
1da177e4 | 450 | outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG); |
9482ef85 FT |
451 | |
452 | scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) { | |
453 | SYM53C500_pio_read(fast_pio, port_base, | |
45711f1a | 454 | sg_virt(sg), sg->length); |
1da177e4 LT |
455 | } |
456 | REG0(port_base); | |
457 | } | |
458 | break; | |
459 | ||
460 | case 0x02: /* COMMAND */ | |
461 | curSC->SCp.phase = command_ph; | |
462 | printk("SYM53C500: Warning: Unknown interrupt occurred in command phase!\n"); | |
463 | break; | |
464 | ||
465 | case 0x03: /* STATUS */ | |
466 | curSC->SCp.phase = status_ph; | |
467 | VDEB(printk("SYM53C500: Status phase\n")); | |
468 | outb(FLUSH_FIFO, port_base + CMD_REG); | |
469 | outb(INIT_CMD_COMPLETE, port_base + CMD_REG); | |
470 | break; | |
471 | ||
472 | case 0x04: /* Reserved */ | |
473 | case 0x05: /* Reserved */ | |
474 | printk("SYM53C500: WARNING: Reserved phase!!!\n"); | |
475 | break; | |
476 | ||
477 | case 0x06: /* MESSAGE-OUT */ | |
478 | DEB(printk("SYM53C500: Message-Out phase\n")); | |
479 | curSC->SCp.phase = message_out; | |
480 | outb(SET_ATN, port_base + CMD_REG); /* Reject the message */ | |
481 | outb(MSG_ACCEPT, port_base + CMD_REG); | |
482 | break; | |
483 | ||
484 | case 0x07: /* MESSAGE-IN */ | |
485 | VDEB(printk("SYM53C500: Message-In phase\n")); | |
486 | curSC->SCp.phase = message_in; | |
487 | ||
488 | curSC->SCp.Status = inb(port_base + SCSI_FIFO); | |
489 | curSC->SCp.Message = inb(port_base + SCSI_FIFO); | |
490 | ||
491 | VDEB(printk("SCSI FIFO size=%d\n", inb(port_base + FIFO_FLAGS) & 0x1f)); | |
492 | DEB(printk("Status = %02x Message = %02x\n", curSC->SCp.Status, curSC->SCp.Message)); | |
493 | ||
494 | if (curSC->SCp.Message == SAVE_POINTERS || curSC->SCp.Message == DISCONNECT) { | |
495 | outb(SET_ATN, port_base + CMD_REG); /* Reject message */ | |
496 | DEB(printk("Discarding SAVE_POINTERS message\n")); | |
497 | } | |
498 | outb(MSG_ACCEPT, port_base + CMD_REG); | |
499 | break; | |
500 | } | |
501 | out: | |
502 | spin_unlock_irqrestore(dev->host_lock, flags); | |
503 | return IRQ_HANDLED; | |
504 | ||
505 | idle_out: | |
506 | curSC->SCp.phase = idle; | |
507 | curSC->scsi_done(curSC); | |
508 | goto out; | |
509 | } | |
510 | ||
511 | static void | |
fba395ee | 512 | SYM53C500_release(struct pcmcia_device *link) |
1da177e4 LT |
513 | { |
514 | struct scsi_info_t *info = link->priv; | |
515 | struct Scsi_Host *shost = info->host; | |
516 | ||
3e716617 | 517 | dev_dbg(&link->dev, "SYM53C500_release\n"); |
1da177e4 LT |
518 | |
519 | /* | |
520 | * Do this before releasing/freeing resources. | |
521 | */ | |
522 | scsi_remove_host(shost); | |
523 | ||
524 | /* | |
525 | * Interrupts getting hosed on card removal. Try | |
526 | * the following code, mostly from qlogicfas.c. | |
527 | */ | |
528 | if (shost->irq) | |
529 | free_irq(shost->irq, shost); | |
1da177e4 LT |
530 | if (shost->io_port && shost->n_io_port) |
531 | release_region(shost->io_port, shost->n_io_port); | |
532 | ||
fba395ee | 533 | pcmcia_disable_device(link); |
1da177e4 LT |
534 | |
535 | scsi_host_put(shost); | |
536 | } /* SYM53C500_release */ | |
537 | ||
538 | static const char* | |
539 | SYM53C500_info(struct Scsi_Host *SChost) | |
540 | { | |
541 | static char info_msg[256]; | |
542 | struct sym53c500_data *data = | |
543 | (struct sym53c500_data *)SChost->hostdata; | |
544 | ||
545 | DEB(printk("SYM53C500_info called\n")); | |
546 | (void)snprintf(info_msg, sizeof(info_msg), | |
547 | "SYM53C500 at 0x%lx, IRQ %d, %s PIO mode.", | |
548 | SChost->io_port, SChost->irq, data->fast_pio ? "fast" : "slow"); | |
549 | return (info_msg); | |
550 | } | |
551 | ||
552 | static int | |
553 | SYM53C500_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) | |
554 | { | |
555 | int i; | |
556 | int port_base = SCpnt->device->host->io_port; | |
557 | struct sym53c500_data *data = | |
558 | (struct sym53c500_data *)SCpnt->device->host->hostdata; | |
559 | ||
560 | VDEB(printk("SYM53C500_queue called\n")); | |
561 | ||
562 | DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", | |
563 | SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->device->id, | |
9482ef85 | 564 | SCpnt->device->lun, scsi_bufflen(SCpnt))); |
1da177e4 LT |
565 | |
566 | VDEB(for (i = 0; i < SCpnt->cmd_len; i++) | |
567 | printk("cmd[%d]=%02x ", i, SCpnt->cmnd[i])); | |
568 | VDEB(printk("\n")); | |
569 | ||
570 | data->current_SC = SCpnt; | |
571 | data->current_SC->scsi_done = done; | |
572 | data->current_SC->SCp.phase = command_ph; | |
573 | data->current_SC->SCp.Status = 0; | |
574 | data->current_SC->SCp.Message = 0; | |
575 | ||
576 | /* We are locked here already by the mid layer */ | |
577 | REG0(port_base); | |
422c0d61 | 578 | outb(scmd_id(SCpnt), port_base + DEST_ID); /* set destination */ |
1da177e4 LT |
579 | outb(FLUSH_FIFO, port_base + CMD_REG); /* reset the fifos */ |
580 | ||
581 | for (i = 0; i < SCpnt->cmd_len; i++) { | |
582 | outb(SCpnt->cmnd[i], port_base + SCSI_FIFO); | |
583 | } | |
584 | outb(SELECT_NO_ATN, port_base + CMD_REG); | |
585 | ||
586 | return 0; | |
587 | } | |
588 | ||
589 | static int | |
590 | SYM53C500_host_reset(struct scsi_cmnd *SCpnt) | |
591 | { | |
592 | int port_base = SCpnt->device->host->io_port; | |
593 | ||
594 | DEB(printk("SYM53C500_host_reset called\n")); | |
df0ae249 | 595 | spin_lock_irq(SCpnt->device->host->host_lock); |
1da177e4 | 596 | SYM53C500_int_host_reset(port_base); |
df0ae249 | 597 | spin_unlock_irq(SCpnt->device->host->host_lock); |
1da177e4 LT |
598 | |
599 | return SUCCESS; | |
600 | } | |
601 | ||
602 | static int | |
603 | SYM53C500_biosparm(struct scsi_device *disk, | |
604 | struct block_device *dev, | |
605 | sector_t capacity, int *info_array) | |
606 | { | |
607 | int size; | |
608 | ||
609 | DEB(printk("SYM53C500_biosparm called\n")); | |
610 | ||
611 | size = capacity; | |
612 | info_array[0] = 64; /* heads */ | |
613 | info_array[1] = 32; /* sectors */ | |
614 | info_array[2] = size >> 11; /* cylinders */ | |
615 | if (info_array[2] > 1024) { /* big disk */ | |
616 | info_array[0] = 255; | |
617 | info_array[1] = 63; | |
618 | info_array[2] = size / (255 * 63); | |
619 | } | |
620 | return 0; | |
621 | } | |
622 | ||
623 | static ssize_t | |
ee959b00 TJ |
624 | SYM53C500_show_pio(struct device *dev, struct device_attribute *attr, |
625 | char *buf) | |
1da177e4 | 626 | { |
ee959b00 | 627 | struct Scsi_Host *SHp = class_to_shost(dev); |
1da177e4 LT |
628 | struct sym53c500_data *data = |
629 | (struct sym53c500_data *)SHp->hostdata; | |
630 | ||
631 | return snprintf(buf, 4, "%d\n", data->fast_pio); | |
632 | } | |
633 | ||
634 | static ssize_t | |
ee959b00 TJ |
635 | SYM53C500_store_pio(struct device *dev, struct device_attribute *attr, |
636 | const char *buf, size_t count) | |
1da177e4 LT |
637 | { |
638 | int pio; | |
ee959b00 | 639 | struct Scsi_Host *SHp = class_to_shost(dev); |
1da177e4 LT |
640 | struct sym53c500_data *data = |
641 | (struct sym53c500_data *)SHp->hostdata; | |
642 | ||
643 | pio = simple_strtoul(buf, NULL, 0); | |
644 | if (pio == 0 || pio == 1) { | |
645 | data->fast_pio = pio; | |
646 | return count; | |
647 | } | |
648 | else | |
649 | return -EINVAL; | |
650 | } | |
651 | ||
652 | /* | |
653 | * SCSI HBA device attributes we want to | |
654 | * make available via sysfs. | |
655 | */ | |
ee959b00 | 656 | static struct device_attribute SYM53C500_pio_attr = { |
1da177e4 LT |
657 | .attr = { |
658 | .name = "fast_pio", | |
659 | .mode = (S_IRUGO | S_IWUSR), | |
660 | }, | |
661 | .show = SYM53C500_show_pio, | |
662 | .store = SYM53C500_store_pio, | |
663 | }; | |
664 | ||
ee959b00 | 665 | static struct device_attribute *SYM53C500_shost_attrs[] = { |
1da177e4 LT |
666 | &SYM53C500_pio_attr, |
667 | NULL, | |
668 | }; | |
669 | ||
670 | /* | |
671 | * scsi_host_template initializer | |
672 | */ | |
673 | static struct scsi_host_template sym53c500_driver_template = { | |
674 | .module = THIS_MODULE, | |
675 | .name = "SYM53C500", | |
676 | .info = SYM53C500_info, | |
677 | .queuecommand = SYM53C500_queue, | |
678 | .eh_host_reset_handler = SYM53C500_host_reset, | |
679 | .bios_param = SYM53C500_biosparm, | |
680 | .proc_name = "SYM53C500", | |
681 | .can_queue = 1, | |
682 | .this_id = 7, | |
683 | .sg_tablesize = 32, | |
684 | .cmd_per_lun = 1, | |
685 | .use_clustering = ENABLE_CLUSTERING, | |
686 | .shost_attrs = SYM53C500_shost_attrs | |
687 | }; | |
688 | ||
0e6f9d27 DB |
689 | static int SYM53C500_config_check(struct pcmcia_device *p_dev, |
690 | cistpl_cftable_entry_t *cfg, | |
8e2fc39d | 691 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 692 | unsigned int vcc, |
0e6f9d27 DB |
693 | void *priv_data) |
694 | { | |
0e6f9d27 DB |
695 | p_dev->io.BasePort1 = cfg->io.win[0].base; |
696 | p_dev->io.NumPorts1 = cfg->io.win[0].len; | |
697 | ||
698 | if (p_dev->io.BasePort1 == 0) | |
699 | return -ENODEV; | |
700 | ||
701 | return pcmcia_request_io(p_dev, &p_dev->io); | |
702 | } | |
703 | ||
15b99ac1 | 704 | static int |
fba395ee | 705 | SYM53C500_config(struct pcmcia_device *link) |
1da177e4 | 706 | { |
1da177e4 | 707 | struct scsi_info_t *info = link->priv; |
3e716617 | 708 | int ret; |
1da177e4 | 709 | int irq_level, port_base; |
1da177e4 LT |
710 | struct Scsi_Host *host; |
711 | struct scsi_host_template *tpnt = &sym53c500_driver_template; | |
712 | struct sym53c500_data *data; | |
713 | ||
3e716617 | 714 | dev_dbg(&link->dev, "SYM53C500_config\n"); |
1da177e4 | 715 | |
af2b3b50 DB |
716 | info->manf_id = link->manf_id; |
717 | ||
3e716617 DB |
718 | ret = pcmcia_loop_config(link, SYM53C500_config_check, NULL); |
719 | if (ret) | |
720 | goto failed; | |
721 | ||
eb14120f | 722 | if (!link->irq) |
0e6f9d27 | 723 | goto failed; |
1da177e4 | 724 | |
3e716617 DB |
725 | ret = pcmcia_request_configuration(link, &link->conf); |
726 | if (ret) | |
727 | goto failed; | |
1da177e4 LT |
728 | |
729 | /* | |
730 | * That's the trouble with copying liberally from another driver. | |
731 | * Some things probably aren't relevant, and I suspect this entire | |
732 | * section dealing with manufacturer IDs can be scrapped. --rct | |
733 | */ | |
734 | if ((info->manf_id == MANFID_MACNICA) || | |
735 | (info->manf_id == MANFID_PIONEER) || | |
736 | (info->manf_id == 0x0098)) { | |
737 | /* set ATAcmd */ | |
738 | outb(0xb4, link->io.BasePort1 + 0xd); | |
739 | outb(0x24, link->io.BasePort1 + 0x9); | |
740 | outb(0x04, link->io.BasePort1 + 0xd); | |
741 | } | |
742 | ||
743 | /* | |
744 | * irq_level == 0 implies tpnt->can_queue == 0, which | |
745 | * is not supported in 2.6. Thus, only irq_level > 0 | |
746 | * will be allowed. | |
747 | * | |
748 | * Possible port_base values are as follows: | |
749 | * | |
750 | * 0x130, 0x230, 0x280, 0x290, | |
751 | * 0x320, 0x330, 0x340, 0x350 | |
752 | */ | |
753 | port_base = link->io.BasePort1; | |
eb14120f | 754 | irq_level = link->irq; |
1da177e4 LT |
755 | |
756 | DEB(printk("SYM53C500: port_base=0x%x, irq=%d, fast_pio=%d\n", | |
757 | port_base, irq_level, USE_FAST_PIO);) | |
758 | ||
759 | chip_init(port_base); | |
760 | ||
761 | host = scsi_host_alloc(tpnt, sizeof(struct sym53c500_data)); | |
762 | if (!host) { | |
763 | printk("SYM53C500: Unable to register host, giving up.\n"); | |
764 | goto err_release; | |
765 | } | |
766 | ||
767 | data = (struct sym53c500_data *)host->hostdata; | |
768 | ||
769 | if (irq_level > 0) { | |
1d6f359a | 770 | if (request_irq(irq_level, SYM53C500_intr, IRQF_SHARED, "SYM53C500", host)) { |
1da177e4 LT |
771 | printk("SYM53C500: unable to allocate IRQ %d\n", irq_level); |
772 | goto err_free_scsi; | |
773 | } | |
774 | DEB(printk("SYM53C500: allocated IRQ %d\n", irq_level)); | |
775 | } else if (irq_level == 0) { | |
776 | DEB(printk("SYM53C500: No interrupts detected\n")); | |
777 | goto err_free_scsi; | |
778 | } else { | |
779 | DEB(printk("SYM53C500: Shouldn't get here!\n")); | |
780 | goto err_free_scsi; | |
781 | } | |
782 | ||
783 | host->unique_id = port_base; | |
784 | host->irq = irq_level; | |
785 | host->io_port = port_base; | |
786 | host->n_io_port = 0x10; | |
787 | host->dma_channel = -1; | |
788 | ||
789 | /* | |
790 | * Note fast_pio is set to USE_FAST_PIO by | |
791 | * default, but can be changed via "sysfs". | |
792 | */ | |
793 | data->fast_pio = USE_FAST_PIO; | |
794 | ||
795 | sprintf(info->node.dev_name, "scsi%d", host->host_no); | |
fd238232 | 796 | link->dev_node = &info->node; |
1da177e4 LT |
797 | info->host = host; |
798 | ||
799 | if (scsi_add_host(host, NULL)) | |
800 | goto err_free_irq; | |
801 | ||
802 | scsi_scan_host(host); | |
803 | ||
15b99ac1 | 804 | return 0; |
1da177e4 LT |
805 | |
806 | err_free_irq: | |
807 | free_irq(irq_level, host); | |
808 | err_free_scsi: | |
809 | scsi_host_put(host); | |
810 | err_release: | |
811 | release_region(port_base, 0x10); | |
812 | printk(KERN_INFO "sym53c500_cs: no SCSI devices found\n"); | |
15b99ac1 | 813 | return -ENODEV; |
1da177e4 | 814 | |
0e6f9d27 | 815 | failed: |
1da177e4 | 816 | SYM53C500_release(link); |
15b99ac1 | 817 | return -ENODEV; |
1da177e4 LT |
818 | } /* SYM53C500_config */ |
819 | ||
fba395ee | 820 | static int sym53c500_resume(struct pcmcia_device *link) |
98e4c28b | 821 | { |
98e4c28b DB |
822 | struct scsi_info_t *info = link->priv; |
823 | ||
e2d40963 DB |
824 | /* See earlier comment about manufacturer IDs. */ |
825 | if ((info->manf_id == MANFID_MACNICA) || | |
826 | (info->manf_id == MANFID_PIONEER) || | |
827 | (info->manf_id == 0x0098)) { | |
828 | outb(0x80, link->io.BasePort1 + 0xd); | |
829 | outb(0x24, link->io.BasePort1 + 0x9); | |
830 | outb(0x04, link->io.BasePort1 + 0xd); | |
98e4c28b | 831 | } |
e2d40963 DB |
832 | /* |
833 | * If things don't work after a "resume", | |
834 | * this is a good place to start looking. | |
835 | */ | |
836 | SYM53C500_int_host_reset(link->io.BasePort1); | |
98e4c28b DB |
837 | |
838 | return 0; | |
839 | } | |
840 | ||
1da177e4 | 841 | static void |
fba395ee | 842 | SYM53C500_detach(struct pcmcia_device *link) |
1da177e4 | 843 | { |
3e716617 | 844 | dev_dbg(&link->dev, "SYM53C500_detach\n"); |
1da177e4 | 845 | |
e2d40963 | 846 | SYM53C500_release(link); |
1da177e4 | 847 | |
1da177e4 LT |
848 | kfree(link->priv); |
849 | link->priv = NULL; | |
850 | } /* SYM53C500_detach */ | |
851 | ||
f8cfa618 | 852 | static int |
15b99ac1 | 853 | SYM53C500_probe(struct pcmcia_device *link) |
1da177e4 LT |
854 | { |
855 | struct scsi_info_t *info; | |
1da177e4 | 856 | |
3e716617 | 857 | dev_dbg(&link->dev, "SYM53C500_attach()\n"); |
1da177e4 LT |
858 | |
859 | /* Create new SCSI device */ | |
dd00cc48 | 860 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
1da177e4 | 861 | if (!info) |
f8cfa618 | 862 | return -ENOMEM; |
fba395ee | 863 | info->p_dev = link; |
1da177e4 LT |
864 | link->priv = info; |
865 | link->io.NumPorts1 = 16; | |
866 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
867 | link->io.IOAddrLines = 10; | |
1da177e4 | 868 | link->conf.Attributes = CONF_ENABLE_IRQ; |
1da177e4 | 869 | link->conf.IntType = INT_MEMORY_AND_IO; |
1da177e4 | 870 | |
15b99ac1 | 871 | return SYM53C500_config(link); |
1da177e4 LT |
872 | } /* SYM53C500_attach */ |
873 | ||
874 | MODULE_AUTHOR("Bob Tracy <rct@frus.com>"); | |
875 | MODULE_DESCRIPTION("SYM53C500 PCMCIA SCSI driver"); | |
876 | MODULE_LICENSE("GPL"); | |
877 | ||
2a355d07 DB |
878 | static struct pcmcia_device_id sym53c500_ids[] = { |
879 | PCMCIA_DEVICE_PROD_ID12("BASICS by New Media Corporation", "SCSI Sym53C500", 0x23c78a9d, 0x0099e7f7), | |
880 | PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "SCSI Bus Toaster Sym53C500", 0x085a850b, 0x45432eb8), | |
881 | PCMCIA_DEVICE_PROD_ID2("SCSI9000", 0x21648f44), | |
882 | PCMCIA_DEVICE_NULL, | |
883 | }; | |
884 | MODULE_DEVICE_TABLE(pcmcia, sym53c500_ids); | |
885 | ||
1da177e4 LT |
886 | static struct pcmcia_driver sym53c500_cs_driver = { |
887 | .owner = THIS_MODULE, | |
888 | .drv = { | |
889 | .name = "sym53c500_cs", | |
890 | }, | |
15b99ac1 | 891 | .probe = SYM53C500_probe, |
cc3b4866 | 892 | .remove = SYM53C500_detach, |
2a355d07 | 893 | .id_table = sym53c500_ids, |
98e4c28b | 894 | .resume = sym53c500_resume, |
1da177e4 LT |
895 | }; |
896 | ||
897 | static int __init | |
898 | init_sym53c500_cs(void) | |
899 | { | |
900 | return pcmcia_register_driver(&sym53c500_cs_driver); | |
901 | } | |
902 | ||
903 | static void __exit | |
904 | exit_sym53c500_cs(void) | |
905 | { | |
906 | pcmcia_unregister_driver(&sym53c500_cs_driver); | |
907 | } | |
908 | ||
909 | module_init(init_sym53c500_cs); | |
910 | module_exit(exit_sym53c500_cs); |