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1da177e4 LT |
1 | /*====================================================================== |
2 | ||
3 | NinjaSCSI-3 / NinjaSCSI-32Bi PCMCIA SCSI host adapter card driver | |
4 | By: YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp> | |
5 | ||
6 | Ver.2.8 Support 32bit MMIO mode | |
7 | Support Synchronous Data Transfer Request (SDTR) mode | |
8 | Ver.2.0 Support 32bit PIO mode | |
9 | Ver.1.1.2 Fix for scatter list buffer exceeds | |
10 | Ver.1.1 Support scatter list | |
11 | Ver.0.1 Initial version | |
12 | ||
13 | This software may be used and distributed according to the terms of | |
14 | the GNU General Public License. | |
15 | ||
16 | ======================================================================*/ | |
17 | ||
18 | /*********************************************************************** | |
19 | This driver is for these PCcards. | |
20 | ||
21 | I-O DATA PCSC-F (Workbit NinjaSCSI-3) | |
22 | "WBT", "NinjaSCSI-3", "R1.0" | |
23 | I-O DATA CBSC-II (Workbit NinjaSCSI-32Bi in 16bit mode) | |
24 | "IO DATA", "CBSC16 ", "1" | |
25 | ||
26 | ***********************************************************************/ | |
27 | ||
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/kernel.h> | |
30 | #include <linux/init.h> | |
1da177e4 LT |
31 | #include <linux/slab.h> |
32 | #include <linux/string.h> | |
33 | #include <linux/timer.h> | |
34 | #include <linux/ioport.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/interrupt.h> | |
37 | #include <linux/major.h> | |
38 | #include <linux/blkdev.h> | |
39 | #include <linux/stat.h> | |
40 | ||
41 | #include <asm/io.h> | |
42 | #include <asm/irq.h> | |
43 | ||
44 | #include <../drivers/scsi/scsi.h> | |
45 | #include <scsi/scsi_host.h> | |
46 | ||
47 | #include <scsi/scsi.h> | |
48 | #include <scsi/scsi_ioctl.h> | |
49 | ||
1da177e4 LT |
50 | #include <pcmcia/cs.h> |
51 | #include <pcmcia/cistpl.h> | |
52 | #include <pcmcia/cisreg.h> | |
53 | #include <pcmcia/ds.h> | |
54 | ||
55 | #include "nsp_cs.h" | |
56 | ||
57 | MODULE_AUTHOR("YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>"); | |
774251ef | 58 | MODULE_DESCRIPTION("WorkBit NinjaSCSI-3 / NinjaSCSI-32Bi(16bit) PCMCIA SCSI host adapter module"); |
1da177e4 LT |
59 | MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); |
60 | #ifdef MODULE_LICENSE | |
61 | MODULE_LICENSE("GPL"); | |
62 | #endif | |
63 | ||
64 | #include "nsp_io.h" | |
65 | ||
66 | /*====================================================================*/ | |
67 | /* Parameters that can be set with 'insmod' */ | |
68 | ||
69 | static int nsp_burst_mode = BURST_MEM32; | |
70 | module_param(nsp_burst_mode, int, 0); | |
71 | MODULE_PARM_DESC(nsp_burst_mode, "Burst transfer mode (0=io8, 1=io32, 2=mem32(default))"); | |
72 | ||
73 | /* Release IO ports after configuration? */ | |
74 | static int free_ports = 0; | |
75 | module_param(free_ports, bool, 0); | |
76 | MODULE_PARM_DESC(free_ports, "Release IO ports after configuration? (default: 0 (=no))"); | |
77 | ||
d0be4a7d | 78 | static struct scsi_host_template nsp_driver_template = { |
1da177e4 LT |
79 | .proc_name = "nsp_cs", |
80 | .proc_info = nsp_proc_info, | |
81 | .name = "WorkBit NinjaSCSI-3/32Bi(16bit)", | |
1da177e4 LT |
82 | .info = nsp_info, |
83 | .queuecommand = nsp_queuecommand, | |
1da177e4 | 84 | /* .eh_abort_handler = nsp_eh_abort,*/ |
1da177e4 LT |
85 | .eh_bus_reset_handler = nsp_eh_bus_reset, |
86 | .eh_host_reset_handler = nsp_eh_host_reset, | |
87 | .can_queue = 1, | |
88 | .this_id = NSP_INITIATOR_ID, | |
89 | .sg_tablesize = SG_ALL, | |
90 | .cmd_per_lun = 1, | |
91 | .use_clustering = DISABLE_CLUSTERING, | |
1da177e4 LT |
92 | }; |
93 | ||
1da177e4 LT |
94 | static nsp_hw_data nsp_data_base; /* attach <-> detect glue */ |
95 | ||
96 | ||
97 | ||
98 | /* | |
99 | * debug, error print | |
100 | */ | |
101 | #ifndef NSP_DEBUG | |
102 | # define NSP_DEBUG_MASK 0x000000 | |
103 | # define nsp_msg(type, args...) nsp_cs_message("", 0, (type), args) | |
104 | # define nsp_dbg(mask, args...) /* */ | |
105 | #else | |
106 | # define NSP_DEBUG_MASK 0xffffff | |
107 | # define nsp_msg(type, args...) \ | |
cadbd4a5 | 108 | nsp_cs_message (__func__, __LINE__, (type), args) |
1da177e4 | 109 | # define nsp_dbg(mask, args...) \ |
cadbd4a5 | 110 | nsp_cs_dmessage(__func__, __LINE__, (mask), args) |
1da177e4 LT |
111 | #endif |
112 | ||
113 | #define NSP_DEBUG_QUEUECOMMAND BIT(0) | |
114 | #define NSP_DEBUG_REGISTER BIT(1) | |
115 | #define NSP_DEBUG_AUTOSCSI BIT(2) | |
116 | #define NSP_DEBUG_INTR BIT(3) | |
117 | #define NSP_DEBUG_SGLIST BIT(4) | |
118 | #define NSP_DEBUG_BUSFREE BIT(5) | |
119 | #define NSP_DEBUG_CDB_CONTENTS BIT(6) | |
120 | #define NSP_DEBUG_RESELECTION BIT(7) | |
121 | #define NSP_DEBUG_MSGINOCCUR BIT(8) | |
122 | #define NSP_DEBUG_EEPROM BIT(9) | |
123 | #define NSP_DEBUG_MSGOUTOCCUR BIT(10) | |
124 | #define NSP_DEBUG_BUSRESET BIT(11) | |
125 | #define NSP_DEBUG_RESTART BIT(12) | |
126 | #define NSP_DEBUG_SYNC BIT(13) | |
127 | #define NSP_DEBUG_WAIT BIT(14) | |
128 | #define NSP_DEBUG_TARGETFLAG BIT(15) | |
129 | #define NSP_DEBUG_PROC BIT(16) | |
130 | #define NSP_DEBUG_INIT BIT(17) | |
131 | #define NSP_DEBUG_DATA_IO BIT(18) | |
132 | #define NSP_SPECIAL_PRINT_REGISTER BIT(20) | |
133 | ||
134 | #define NSP_DEBUG_BUF_LEN 150 | |
135 | ||
040cd232 BH |
136 | static inline void nsp_inc_resid(struct scsi_cmnd *SCpnt, int residInc) |
137 | { | |
138 | scsi_set_resid(SCpnt, scsi_get_resid(SCpnt) + residInc); | |
139 | } | |
140 | ||
1da177e4 LT |
141 | static void nsp_cs_message(const char *func, int line, char *type, char *fmt, ...) |
142 | { | |
143 | va_list args; | |
144 | char buf[NSP_DEBUG_BUF_LEN]; | |
145 | ||
146 | va_start(args, fmt); | |
147 | vsnprintf(buf, sizeof(buf), fmt, args); | |
148 | va_end(args); | |
149 | ||
150 | #ifndef NSP_DEBUG | |
151 | printk("%snsp_cs: %s\n", type, buf); | |
152 | #else | |
153 | printk("%snsp_cs: %s (%d): %s\n", type, func, line, buf); | |
154 | #endif | |
155 | } | |
156 | ||
157 | #ifdef NSP_DEBUG | |
158 | static void nsp_cs_dmessage(const char *func, int line, int mask, char *fmt, ...) | |
159 | { | |
160 | va_list args; | |
161 | char buf[NSP_DEBUG_BUF_LEN]; | |
162 | ||
163 | va_start(args, fmt); | |
164 | vsnprintf(buf, sizeof(buf), fmt, args); | |
165 | va_end(args); | |
166 | ||
167 | if (mask & NSP_DEBUG_MASK) { | |
168 | printk("nsp_cs-debug: 0x%x %s (%d): %s\n", mask, func, line, buf); | |
169 | } | |
170 | } | |
171 | #endif | |
172 | ||
173 | /***********************************************************/ | |
174 | ||
175 | /*==================================================== | |
176 | * Clenaup parameters and call done() functions. | |
177 | * You must be set SCpnt->result before call this function. | |
178 | */ | |
0fc82d5e | 179 | static void nsp_scsi_done(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
180 | { |
181 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
182 | ||
183 | data->CurrentSC = NULL; | |
184 | ||
185 | SCpnt->scsi_done(SCpnt); | |
186 | } | |
187 | ||
0fc82d5e HK |
188 | static int nsp_queuecommand(struct scsi_cmnd *SCpnt, |
189 | void (*done)(struct scsi_cmnd *)) | |
1da177e4 LT |
190 | { |
191 | #ifdef NSP_DEBUG | |
192 | /*unsigned int host_id = SCpnt->device->host->this_id;*/ | |
193 | /*unsigned int base = SCpnt->device->host->io_port;*/ | |
422c0d61 | 194 | unsigned char target = scmd_id(SCpnt); |
1da177e4 LT |
195 | #endif |
196 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
197 | ||
040cd232 BH |
198 | nsp_dbg(NSP_DEBUG_QUEUECOMMAND, |
199 | "SCpnt=0x%p target=%d lun=%d sglist=0x%p bufflen=%d sg_count=%d", | |
200 | SCpnt, target, SCpnt->device->lun, scsi_sglist(SCpnt), | |
201 | scsi_bufflen(SCpnt), scsi_sg_count(SCpnt)); | |
1da177e4 LT |
202 | //nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "before CurrentSC=0x%p", data->CurrentSC); |
203 | ||
204 | SCpnt->scsi_done = done; | |
205 | ||
206 | if (data->CurrentSC != NULL) { | |
207 | nsp_msg(KERN_DEBUG, "CurrentSC!=NULL this can't be happen"); | |
208 | SCpnt->result = DID_BAD_TARGET << 16; | |
209 | nsp_scsi_done(SCpnt); | |
210 | return 0; | |
211 | } | |
212 | ||
213 | #if 0 | |
214 | /* XXX: pcmcia-cs generates SCSI command with "scsi_info" utility. | |
215 | This makes kernel crash when suspending... */ | |
216 | if (data->ScsiInfo->stop != 0) { | |
217 | nsp_msg(KERN_INFO, "suspending device. reject command."); | |
218 | SCpnt->result = DID_BAD_TARGET << 16; | |
219 | nsp_scsi_done(SCpnt); | |
220 | return SCSI_MLQUEUE_HOST_BUSY; | |
221 | } | |
222 | #endif | |
223 | ||
224 | show_command(SCpnt); | |
225 | ||
226 | data->CurrentSC = SCpnt; | |
227 | ||
228 | SCpnt->SCp.Status = CHECK_CONDITION; | |
229 | SCpnt->SCp.Message = 0; | |
230 | SCpnt->SCp.have_data_in = IO_UNKNOWN; | |
231 | SCpnt->SCp.sent_command = 0; | |
232 | SCpnt->SCp.phase = PH_UNDETERMINED; | |
040cd232 | 233 | scsi_set_resid(SCpnt, scsi_bufflen(SCpnt)); |
1da177e4 LT |
234 | |
235 | /* setup scratch area | |
236 | SCp.ptr : buffer pointer | |
237 | SCp.this_residual : buffer length | |
238 | SCp.buffer : next buffer | |
239 | SCp.buffers_residual : left buffers in list | |
240 | SCp.phase : current state of the command */ | |
040cd232 BH |
241 | if (scsi_bufflen(SCpnt)) { |
242 | SCpnt->SCp.buffer = scsi_sglist(SCpnt); | |
1da177e4 LT |
243 | SCpnt->SCp.ptr = BUFFER_ADDR; |
244 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
040cd232 | 245 | SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1; |
1da177e4 | 246 | } else { |
040cd232 BH |
247 | SCpnt->SCp.ptr = NULL; |
248 | SCpnt->SCp.this_residual = 0; | |
1da177e4 LT |
249 | SCpnt->SCp.buffer = NULL; |
250 | SCpnt->SCp.buffers_residual = 0; | |
251 | } | |
252 | ||
253 | if (nsphw_start_selection(SCpnt) == FALSE) { | |
254 | nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "selection fail"); | |
255 | SCpnt->result = DID_BUS_BUSY << 16; | |
256 | nsp_scsi_done(SCpnt); | |
257 | return 0; | |
258 | } | |
259 | ||
260 | ||
261 | //nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "out"); | |
262 | #ifdef NSP_DEBUG | |
263 | data->CmdId++; | |
264 | #endif | |
265 | return 0; | |
266 | } | |
267 | ||
268 | /* | |
269 | * setup PIO FIFO transfer mode and enable/disable to data out | |
270 | */ | |
271 | static void nsp_setup_fifo(nsp_hw_data *data, int enabled) | |
272 | { | |
273 | unsigned int base = data->BaseAddress; | |
274 | unsigned char transfer_mode_reg; | |
275 | ||
276 | //nsp_dbg(NSP_DEBUG_DATA_IO, "enabled=%d", enabled); | |
277 | ||
278 | if (enabled != FALSE) { | |
279 | transfer_mode_reg = TRANSFER_GO | BRAIND; | |
280 | } else { | |
281 | transfer_mode_reg = 0; | |
282 | } | |
283 | ||
284 | transfer_mode_reg |= data->TransferMode; | |
285 | ||
286 | nsp_index_write(base, TRANSFERMODE, transfer_mode_reg); | |
287 | } | |
288 | ||
289 | static void nsphw_init_sync(nsp_hw_data *data) | |
290 | { | |
291 | sync_data tmp_sync = { .SyncNegotiation = SYNC_NOT_YET, | |
292 | .SyncPeriod = 0, | |
293 | .SyncOffset = 0 | |
294 | }; | |
295 | int i; | |
296 | ||
297 | /* setup sync data */ | |
298 | for ( i = 0; i < ARRAY_SIZE(data->Sync); i++ ) { | |
299 | data->Sync[i] = tmp_sync; | |
300 | } | |
301 | } | |
302 | ||
303 | /* | |
304 | * Initialize Ninja hardware | |
305 | */ | |
306 | static int nsphw_init(nsp_hw_data *data) | |
307 | { | |
308 | unsigned int base = data->BaseAddress; | |
309 | ||
310 | nsp_dbg(NSP_DEBUG_INIT, "in base=0x%x", base); | |
311 | ||
312 | data->ScsiClockDiv = CLOCK_40M | FAST_20; | |
313 | data->CurrentSC = NULL; | |
314 | data->FifoCount = 0; | |
315 | data->TransferMode = MODE_IO8; | |
316 | ||
317 | nsphw_init_sync(data); | |
318 | ||
319 | /* block all interrupts */ | |
320 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); | |
321 | ||
322 | /* setup SCSI interface */ | |
323 | nsp_write(base, IFSELECT, IF_IFSEL); | |
324 | ||
325 | nsp_index_write(base, SCSIIRQMODE, 0); | |
326 | ||
327 | nsp_index_write(base, TRANSFERMODE, MODE_IO8); | |
328 | nsp_index_write(base, CLOCKDIV, data->ScsiClockDiv); | |
329 | ||
330 | nsp_index_write(base, PARITYCTRL, 0); | |
331 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | | |
332 | ACK_COUNTER_CLEAR | | |
333 | REQ_COUNTER_CLEAR | | |
334 | HOST_COUNTER_CLEAR); | |
335 | ||
336 | /* setup fifo asic */ | |
337 | nsp_write(base, IFSELECT, IF_REGSEL); | |
338 | nsp_index_write(base, TERMPWRCTRL, 0); | |
339 | if ((nsp_index_read(base, OTHERCONTROL) & TPWR_SENSE) == 0) { | |
340 | nsp_msg(KERN_INFO, "terminator power on"); | |
341 | nsp_index_write(base, TERMPWRCTRL, POWER_ON); | |
342 | } | |
343 | ||
344 | nsp_index_write(base, TIMERCOUNT, 0); | |
345 | nsp_index_write(base, TIMERCOUNT, 0); /* requires 2 times!! */ | |
346 | ||
347 | nsp_index_write(base, SYNCREG, 0); | |
348 | nsp_index_write(base, ACKWIDTH, 0); | |
349 | ||
350 | /* enable interrupts and ack them */ | |
351 | nsp_index_write(base, SCSIIRQMODE, SCSI_PHASE_CHANGE_EI | | |
352 | RESELECT_EI | | |
353 | SCSI_RESET_IRQ_EI ); | |
354 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); | |
355 | ||
356 | nsp_setup_fifo(data, FALSE); | |
357 | ||
358 | return TRUE; | |
359 | } | |
360 | ||
361 | /* | |
362 | * Start selection phase | |
363 | */ | |
0fc82d5e | 364 | static int nsphw_start_selection(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
365 | { |
366 | unsigned int host_id = SCpnt->device->host->this_id; | |
367 | unsigned int base = SCpnt->device->host->io_port; | |
422c0d61 | 368 | unsigned char target = scmd_id(SCpnt); |
1da177e4 LT |
369 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
370 | int time_out; | |
371 | unsigned char phase, arbit; | |
372 | ||
373 | //nsp_dbg(NSP_DEBUG_RESELECTION, "in"); | |
374 | ||
375 | phase = nsp_index_read(base, SCSIBUSMON); | |
376 | if(phase != BUSMON_BUS_FREE) { | |
377 | //nsp_dbg(NSP_DEBUG_RESELECTION, "bus busy"); | |
378 | return FALSE; | |
379 | } | |
380 | ||
381 | /* start arbitration */ | |
382 | //nsp_dbg(NSP_DEBUG_RESELECTION, "start arbit"); | |
383 | SCpnt->SCp.phase = PH_ARBSTART; | |
384 | nsp_index_write(base, SETARBIT, ARBIT_GO); | |
385 | ||
386 | time_out = 1000; | |
387 | do { | |
388 | /* XXX: what a stupid chip! */ | |
389 | arbit = nsp_index_read(base, ARBITSTATUS); | |
390 | //nsp_dbg(NSP_DEBUG_RESELECTION, "arbit=%d, wait_count=%d", arbit, wait_count); | |
391 | udelay(1); /* hold 1.2us */ | |
392 | } while((arbit & (ARBIT_WIN | ARBIT_FAIL)) == 0 && | |
393 | (time_out-- != 0)); | |
394 | ||
395 | if (!(arbit & ARBIT_WIN)) { | |
396 | //nsp_dbg(NSP_DEBUG_RESELECTION, "arbit fail"); | |
397 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); | |
398 | return FALSE; | |
399 | } | |
400 | ||
401 | /* assert select line */ | |
402 | //nsp_dbg(NSP_DEBUG_RESELECTION, "assert SEL line"); | |
403 | SCpnt->SCp.phase = PH_SELSTART; | |
404 | udelay(3); /* wait 2.4us */ | |
405 | nsp_index_write(base, SCSIDATALATCH, BIT(host_id) | BIT(target)); | |
406 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_ATN); | |
407 | udelay(2); /* wait >1.2us */ | |
408 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_DATAOUT_ENB | SCSI_ATN); | |
409 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); | |
410 | /*udelay(1);*/ /* wait >90ns */ | |
411 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_DATAOUT_ENB | SCSI_ATN); | |
412 | ||
413 | /* check selection timeout */ | |
414 | nsp_start_timer(SCpnt, 1000/51); | |
415 | data->SelectionTimeOut = 1; | |
416 | ||
417 | return TRUE; | |
418 | } | |
419 | ||
420 | struct nsp_sync_table { | |
421 | unsigned int min_period; | |
422 | unsigned int max_period; | |
423 | unsigned int chip_period; | |
424 | unsigned int ack_width; | |
425 | }; | |
426 | ||
427 | static struct nsp_sync_table nsp_sync_table_40M[] = { | |
428 | {0x0c, 0x0c, 0x1, 0}, /* 20MB 50ns*/ | |
429 | {0x19, 0x19, 0x3, 1}, /* 10MB 100ns*/ | |
430 | {0x1a, 0x25, 0x5, 2}, /* 7.5MB 150ns*/ | |
431 | {0x26, 0x32, 0x7, 3}, /* 5MB 200ns*/ | |
432 | { 0, 0, 0, 0}, | |
433 | }; | |
434 | ||
435 | static struct nsp_sync_table nsp_sync_table_20M[] = { | |
436 | {0x19, 0x19, 0x1, 0}, /* 10MB 100ns*/ | |
437 | {0x1a, 0x25, 0x2, 0}, /* 7.5MB 150ns*/ | |
438 | {0x26, 0x32, 0x3, 1}, /* 5MB 200ns*/ | |
439 | { 0, 0, 0, 0}, | |
440 | }; | |
441 | ||
442 | /* | |
443 | * setup synchronous data transfer mode | |
444 | */ | |
0fc82d5e | 445 | static int nsp_analyze_sdtr(struct scsi_cmnd *SCpnt) |
1da177e4 | 446 | { |
422c0d61 | 447 | unsigned char target = scmd_id(SCpnt); |
1da177e4 LT |
448 | // unsigned char lun = SCpnt->device->lun; |
449 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
450 | sync_data *sync = &(data->Sync[target]); | |
451 | struct nsp_sync_table *sync_table; | |
452 | unsigned int period, offset; | |
453 | int i; | |
454 | ||
455 | ||
456 | nsp_dbg(NSP_DEBUG_SYNC, "in"); | |
457 | ||
458 | period = sync->SyncPeriod; | |
459 | offset = sync->SyncOffset; | |
460 | ||
461 | nsp_dbg(NSP_DEBUG_SYNC, "period=0x%x, offset=0x%x", period, offset); | |
462 | ||
463 | if ((data->ScsiClockDiv & (BIT(0)|BIT(1))) == CLOCK_20M) { | |
464 | sync_table = nsp_sync_table_20M; | |
465 | } else { | |
466 | sync_table = nsp_sync_table_40M; | |
467 | } | |
468 | ||
469 | for ( i = 0; sync_table->max_period != 0; i++, sync_table++) { | |
470 | if ( period >= sync_table->min_period && | |
471 | period <= sync_table->max_period ) { | |
472 | break; | |
473 | } | |
474 | } | |
475 | ||
476 | if (period != 0 && sync_table->max_period == 0) { | |
477 | /* | |
478 | * No proper period/offset found | |
479 | */ | |
480 | nsp_dbg(NSP_DEBUG_SYNC, "no proper period/offset"); | |
481 | ||
482 | sync->SyncPeriod = 0; | |
483 | sync->SyncOffset = 0; | |
484 | sync->SyncRegister = 0; | |
485 | sync->AckWidth = 0; | |
486 | ||
487 | return FALSE; | |
488 | } | |
489 | ||
490 | sync->SyncRegister = (sync_table->chip_period << SYNCREG_PERIOD_SHIFT) | | |
491 | (offset & SYNCREG_OFFSET_MASK); | |
492 | sync->AckWidth = sync_table->ack_width; | |
493 | ||
494 | nsp_dbg(NSP_DEBUG_SYNC, "sync_reg=0x%x, ack_width=0x%x", sync->SyncRegister, sync->AckWidth); | |
495 | ||
496 | return TRUE; | |
497 | } | |
498 | ||
499 | ||
500 | /* | |
501 | * start ninja hardware timer | |
502 | */ | |
0fc82d5e | 503 | static void nsp_start_timer(struct scsi_cmnd *SCpnt, int time) |
1da177e4 LT |
504 | { |
505 | unsigned int base = SCpnt->device->host->io_port; | |
506 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
507 | ||
508 | //nsp_dbg(NSP_DEBUG_INTR, "in SCpnt=0x%p, time=%d", SCpnt, time); | |
509 | data->TimerCount = time; | |
510 | nsp_index_write(base, TIMERCOUNT, time); | |
511 | } | |
512 | ||
513 | /* | |
514 | * wait for bus phase change | |
515 | */ | |
0fc82d5e HK |
516 | static int nsp_negate_signal(struct scsi_cmnd *SCpnt, unsigned char mask, |
517 | char *str) | |
1da177e4 LT |
518 | { |
519 | unsigned int base = SCpnt->device->host->io_port; | |
520 | unsigned char reg; | |
521 | int time_out; | |
522 | ||
523 | //nsp_dbg(NSP_DEBUG_INTR, "in"); | |
524 | ||
525 | time_out = 100; | |
526 | ||
527 | do { | |
528 | reg = nsp_index_read(base, SCSIBUSMON); | |
529 | if (reg == 0xff) { | |
530 | break; | |
531 | } | |
0454c740 | 532 | } while ((--time_out != 0) && (reg & mask) != 0); |
1da177e4 LT |
533 | |
534 | if (time_out == 0) { | |
535 | nsp_msg(KERN_DEBUG, " %s signal off timeut", str); | |
536 | } | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
541 | /* | |
542 | * expect Ninja Irq | |
543 | */ | |
0fc82d5e HK |
544 | static int nsp_expect_signal(struct scsi_cmnd *SCpnt, |
545 | unsigned char current_phase, | |
546 | unsigned char mask) | |
1da177e4 LT |
547 | { |
548 | unsigned int base = SCpnt->device->host->io_port; | |
549 | int time_out; | |
550 | unsigned char phase, i_src; | |
551 | ||
552 | //nsp_dbg(NSP_DEBUG_INTR, "current_phase=0x%x, mask=0x%x", current_phase, mask); | |
553 | ||
554 | time_out = 100; | |
555 | do { | |
556 | phase = nsp_index_read(base, SCSIBUSMON); | |
557 | if (phase == 0xff) { | |
558 | //nsp_dbg(NSP_DEBUG_INTR, "ret -1"); | |
559 | return -1; | |
560 | } | |
561 | i_src = nsp_read(base, IRQSTATUS); | |
562 | if (i_src & IRQSTATUS_SCSI) { | |
563 | //nsp_dbg(NSP_DEBUG_INTR, "ret 0 found scsi signal"); | |
564 | return 0; | |
565 | } | |
566 | if ((phase & mask) != 0 && (phase & BUSMON_PHASE_MASK) == current_phase) { | |
567 | //nsp_dbg(NSP_DEBUG_INTR, "ret 1 phase=0x%x", phase); | |
568 | return 1; | |
569 | } | |
570 | } while(time_out-- != 0); | |
571 | ||
572 | //nsp_dbg(NSP_DEBUG_INTR, "timeout"); | |
573 | return -1; | |
574 | } | |
575 | ||
576 | /* | |
577 | * transfer SCSI message | |
578 | */ | |
0fc82d5e | 579 | static int nsp_xfer(struct scsi_cmnd *SCpnt, int phase) |
1da177e4 LT |
580 | { |
581 | unsigned int base = SCpnt->device->host->io_port; | |
582 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
583 | char *buf = data->MsgBuffer; | |
584 | int len = min(MSGBUF_SIZE, data->MsgLen); | |
585 | int ptr; | |
586 | int ret; | |
587 | ||
588 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in"); | |
589 | for (ptr = 0; len > 0; len--, ptr++) { | |
590 | ||
591 | ret = nsp_expect_signal(SCpnt, phase, BUSMON_REQ); | |
592 | if (ret <= 0) { | |
593 | nsp_dbg(NSP_DEBUG_DATA_IO, "xfer quit"); | |
594 | return 0; | |
595 | } | |
596 | ||
597 | /* if last byte, negate ATN */ | |
598 | if (len == 1 && SCpnt->SCp.phase == PH_MSG_OUT) { | |
599 | nsp_index_write(base, SCSIBUSCTRL, AUTODIRECTION | ACKENB); | |
600 | } | |
601 | ||
602 | /* read & write message */ | |
603 | if (phase & BUSMON_IO) { | |
604 | nsp_dbg(NSP_DEBUG_DATA_IO, "read msg"); | |
605 | buf[ptr] = nsp_index_read(base, SCSIDATAWITHACK); | |
606 | } else { | |
607 | nsp_dbg(NSP_DEBUG_DATA_IO, "write msg"); | |
608 | nsp_index_write(base, SCSIDATAWITHACK, buf[ptr]); | |
609 | } | |
610 | nsp_negate_signal(SCpnt, BUSMON_ACK, "xfer<ack>"); | |
611 | ||
612 | } | |
613 | return len; | |
614 | } | |
615 | ||
616 | /* | |
617 | * get extra SCSI data from fifo | |
618 | */ | |
0fc82d5e | 619 | static int nsp_dataphase_bypass(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
620 | { |
621 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
622 | unsigned int count; | |
623 | ||
624 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in"); | |
625 | ||
626 | if (SCpnt->SCp.have_data_in != IO_IN) { | |
627 | return 0; | |
628 | } | |
629 | ||
630 | count = nsp_fifo_count(SCpnt); | |
631 | if (data->FifoCount == count) { | |
632 | //nsp_dbg(NSP_DEBUG_DATA_IO, "not use bypass quirk"); | |
633 | return 0; | |
634 | } | |
635 | ||
636 | /* | |
637 | * XXX: NSP_QUIRK | |
638 | * data phase skip only occures in case of SCSI_LOW_READ | |
639 | */ | |
640 | nsp_dbg(NSP_DEBUG_DATA_IO, "use bypass quirk"); | |
641 | SCpnt->SCp.phase = PH_DATA; | |
642 | nsp_pio_read(SCpnt); | |
643 | nsp_setup_fifo(data, FALSE); | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
648 | /* | |
649 | * accept reselection | |
650 | */ | |
0fc82d5e | 651 | static int nsp_reselected(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
652 | { |
653 | unsigned int base = SCpnt->device->host->io_port; | |
654 | unsigned int host_id = SCpnt->device->host->this_id; | |
655 | //nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
656 | unsigned char bus_reg; | |
657 | unsigned char id_reg, tmp; | |
658 | int target; | |
659 | ||
660 | nsp_dbg(NSP_DEBUG_RESELECTION, "in"); | |
661 | ||
662 | id_reg = nsp_index_read(base, RESELECTID); | |
663 | tmp = id_reg & (~BIT(host_id)); | |
664 | target = 0; | |
665 | while(tmp != 0) { | |
666 | if (tmp & BIT(0)) { | |
667 | break; | |
668 | } | |
669 | tmp >>= 1; | |
670 | target++; | |
671 | } | |
672 | ||
422c0d61 | 673 | if (scmd_id(SCpnt) != target) { |
1da177e4 LT |
674 | nsp_msg(KERN_ERR, "XXX: reselect ID must be %d in this implementation.", target); |
675 | } | |
676 | ||
677 | nsp_negate_signal(SCpnt, BUSMON_SEL, "reselect<SEL>"); | |
678 | ||
679 | nsp_nexus(SCpnt); | |
680 | bus_reg = nsp_index_read(base, SCSIBUSCTRL) & ~(SCSI_BSY | SCSI_ATN); | |
681 | nsp_index_write(base, SCSIBUSCTRL, bus_reg); | |
682 | nsp_index_write(base, SCSIBUSCTRL, bus_reg | AUTODIRECTION | ACKENB); | |
683 | ||
684 | return TRUE; | |
685 | } | |
686 | ||
687 | /* | |
688 | * count how many data transferd | |
689 | */ | |
0fc82d5e | 690 | static int nsp_fifo_count(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
691 | { |
692 | unsigned int base = SCpnt->device->host->io_port; | |
693 | unsigned int count; | |
694 | unsigned int l, m, h, dummy; | |
695 | ||
696 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | ACK_COUNTER); | |
697 | ||
698 | l = nsp_index_read(base, TRANSFERCOUNT); | |
699 | m = nsp_index_read(base, TRANSFERCOUNT); | |
700 | h = nsp_index_read(base, TRANSFERCOUNT); | |
701 | dummy = nsp_index_read(base, TRANSFERCOUNT); /* required this! */ | |
702 | ||
703 | count = (h << 16) | (m << 8) | (l << 0); | |
704 | ||
705 | //nsp_dbg(NSP_DEBUG_DATA_IO, "count=0x%x", count); | |
706 | ||
707 | return count; | |
708 | } | |
709 | ||
710 | /* fifo size */ | |
711 | #define RFIFO_CRIT 64 | |
712 | #define WFIFO_CRIT 64 | |
713 | ||
714 | /* | |
715 | * read data in DATA IN phase | |
716 | */ | |
0fc82d5e | 717 | static void nsp_pio_read(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
718 | { |
719 | unsigned int base = SCpnt->device->host->io_port; | |
720 | unsigned long mmio_base = SCpnt->device->host->base; | |
721 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
722 | long time_out; | |
723 | int ocount, res; | |
724 | unsigned char stat, fifo_stat; | |
725 | ||
726 | ocount = data->FifoCount; | |
727 | ||
728 | nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p resid=%d ocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d", | |
040cd232 BH |
729 | SCpnt, scsi_get_resid(SCpnt), ocount, SCpnt->SCp.ptr, |
730 | SCpnt->SCp.this_residual, SCpnt->SCp.buffer, | |
731 | SCpnt->SCp.buffers_residual); | |
1da177e4 LT |
732 | |
733 | time_out = 1000; | |
734 | ||
735 | while ((time_out-- != 0) && | |
736 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0 ) ) { | |
737 | ||
738 | stat = nsp_index_read(base, SCSIBUSMON); | |
739 | stat &= BUSMON_PHASE_MASK; | |
740 | ||
741 | ||
742 | res = nsp_fifo_count(SCpnt) - ocount; | |
743 | //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x ocount=0x%x res=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount, res); | |
744 | if (res == 0) { /* if some data avilable ? */ | |
745 | if (stat == BUSPHASE_DATA_IN) { /* phase changed? */ | |
746 | //nsp_dbg(NSP_DEBUG_DATA_IO, " wait for data this=%d", SCpnt->SCp.this_residual); | |
747 | continue; | |
748 | } else { | |
749 | nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x", stat); | |
750 | break; | |
751 | } | |
752 | } | |
753 | ||
754 | fifo_stat = nsp_read(base, FIFOSTATUS); | |
755 | if ((fifo_stat & FIFOSTATUS_FULL_EMPTY) == 0 && | |
756 | stat == BUSPHASE_DATA_IN) { | |
757 | continue; | |
758 | } | |
759 | ||
760 | res = min(res, SCpnt->SCp.this_residual); | |
761 | ||
762 | switch (data->TransferMode) { | |
763 | case MODE_IO32: | |
764 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
765 | nsp_fifo32_read(base, SCpnt->SCp.ptr, res >> 2); | |
766 | break; | |
767 | case MODE_IO8: | |
768 | nsp_fifo8_read (base, SCpnt->SCp.ptr, res ); | |
769 | break; | |
770 | ||
771 | case MODE_MEM32: | |
772 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
773 | nsp_mmio_fifo32_read(mmio_base, SCpnt->SCp.ptr, res >> 2); | |
774 | break; | |
775 | ||
776 | default: | |
777 | nsp_dbg(NSP_DEBUG_DATA_IO, "unknown read mode"); | |
778 | return; | |
779 | } | |
780 | ||
040cd232 | 781 | nsp_inc_resid(SCpnt, -res); |
1da177e4 LT |
782 | SCpnt->SCp.ptr += res; |
783 | SCpnt->SCp.this_residual -= res; | |
784 | ocount += res; | |
785 | //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this_residual=0x%x ocount=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount); | |
786 | ||
787 | /* go to next scatter list if available */ | |
788 | if (SCpnt->SCp.this_residual == 0 && | |
789 | SCpnt->SCp.buffers_residual != 0 ) { | |
790 | //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next timeout=%d", time_out); | |
791 | SCpnt->SCp.buffers_residual--; | |
792 | SCpnt->SCp.buffer++; | |
793 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
794 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
795 | time_out = 1000; | |
796 | ||
797 | //nsp_dbg(NSP_DEBUG_DATA_IO, "page: 0x%p, off: 0x%x", SCpnt->SCp.buffer->page, SCpnt->SCp.buffer->offset); | |
798 | } | |
799 | } | |
800 | ||
801 | data->FifoCount = ocount; | |
802 | ||
0454c740 | 803 | if (time_out < 0) { |
1da177e4 | 804 | nsp_msg(KERN_DEBUG, "pio read timeout resid=%d this_residual=%d buffers_residual=%d", |
040cd232 BH |
805 | scsi_get_resid(SCpnt), SCpnt->SCp.this_residual, |
806 | SCpnt->SCp.buffers_residual); | |
1da177e4 LT |
807 | } |
808 | nsp_dbg(NSP_DEBUG_DATA_IO, "read ocount=0x%x", ocount); | |
040cd232 BH |
809 | nsp_dbg(NSP_DEBUG_DATA_IO, "r cmd=%d resid=0x%x\n", data->CmdId, |
810 | scsi_get_resid(SCpnt)); | |
1da177e4 LT |
811 | } |
812 | ||
813 | /* | |
814 | * write data in DATA OUT phase | |
815 | */ | |
0fc82d5e | 816 | static void nsp_pio_write(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
817 | { |
818 | unsigned int base = SCpnt->device->host->io_port; | |
819 | unsigned long mmio_base = SCpnt->device->host->base; | |
820 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
821 | int time_out; | |
822 | int ocount, res; | |
823 | unsigned char stat; | |
824 | ||
825 | ocount = data->FifoCount; | |
826 | ||
827 | nsp_dbg(NSP_DEBUG_DATA_IO, "in fifocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d resid=0x%x", | |
040cd232 BH |
828 | data->FifoCount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, |
829 | SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual, | |
830 | scsi_get_resid(SCpnt)); | |
1da177e4 LT |
831 | |
832 | time_out = 1000; | |
833 | ||
834 | while ((time_out-- != 0) && | |
835 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0)) { | |
836 | stat = nsp_index_read(base, SCSIBUSMON); | |
837 | stat &= BUSMON_PHASE_MASK; | |
838 | ||
839 | if (stat != BUSPHASE_DATA_OUT) { | |
840 | res = ocount - nsp_fifo_count(SCpnt); | |
841 | ||
842 | nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x, res=%d\n", stat, res); | |
843 | /* Put back pointer */ | |
040cd232 | 844 | nsp_inc_resid(SCpnt, res); |
1da177e4 LT |
845 | SCpnt->SCp.ptr -= res; |
846 | SCpnt->SCp.this_residual += res; | |
847 | ocount -= res; | |
848 | ||
849 | break; | |
850 | } | |
851 | ||
852 | res = ocount - nsp_fifo_count(SCpnt); | |
853 | if (res > 0) { /* write all data? */ | |
854 | nsp_dbg(NSP_DEBUG_DATA_IO, "wait for all data out. ocount=0x%x res=%d", ocount, res); | |
855 | continue; | |
856 | } | |
857 | ||
858 | res = min(SCpnt->SCp.this_residual, WFIFO_CRIT); | |
859 | ||
860 | //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x res=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, res); | |
861 | switch (data->TransferMode) { | |
862 | case MODE_IO32: | |
863 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
864 | nsp_fifo32_write(base, SCpnt->SCp.ptr, res >> 2); | |
865 | break; | |
866 | case MODE_IO8: | |
867 | nsp_fifo8_write (base, SCpnt->SCp.ptr, res ); | |
868 | break; | |
869 | ||
870 | case MODE_MEM32: | |
871 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
872 | nsp_mmio_fifo32_write(mmio_base, SCpnt->SCp.ptr, res >> 2); | |
873 | break; | |
874 | ||
875 | default: | |
876 | nsp_dbg(NSP_DEBUG_DATA_IO, "unknown write mode"); | |
877 | break; | |
878 | } | |
879 | ||
040cd232 | 880 | nsp_inc_resid(SCpnt, -res); |
1da177e4 LT |
881 | SCpnt->SCp.ptr += res; |
882 | SCpnt->SCp.this_residual -= res; | |
883 | ocount += res; | |
884 | ||
885 | /* go to next scatter list if available */ | |
886 | if (SCpnt->SCp.this_residual == 0 && | |
887 | SCpnt->SCp.buffers_residual != 0 ) { | |
888 | //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next"); | |
889 | SCpnt->SCp.buffers_residual--; | |
890 | SCpnt->SCp.buffer++; | |
891 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
892 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
893 | time_out = 1000; | |
894 | } | |
895 | } | |
896 | ||
897 | data->FifoCount = ocount; | |
898 | ||
0454c740 | 899 | if (time_out < 0) { |
040cd232 BH |
900 | nsp_msg(KERN_DEBUG, "pio write timeout resid=0x%x", |
901 | scsi_get_resid(SCpnt)); | |
1da177e4 LT |
902 | } |
903 | nsp_dbg(NSP_DEBUG_DATA_IO, "write ocount=0x%x", ocount); | |
040cd232 BH |
904 | nsp_dbg(NSP_DEBUG_DATA_IO, "w cmd=%d resid=0x%x\n", data->CmdId, |
905 | scsi_get_resid(SCpnt)); | |
1da177e4 LT |
906 | } |
907 | #undef RFIFO_CRIT | |
908 | #undef WFIFO_CRIT | |
909 | ||
910 | /* | |
911 | * setup synchronous/asynchronous data transfer mode | |
912 | */ | |
0fc82d5e | 913 | static int nsp_nexus(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
914 | { |
915 | unsigned int base = SCpnt->device->host->io_port; | |
422c0d61 | 916 | unsigned char target = scmd_id(SCpnt); |
1da177e4 LT |
917 | // unsigned char lun = SCpnt->device->lun; |
918 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
919 | sync_data *sync = &(data->Sync[target]); | |
920 | ||
921 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p", SCpnt); | |
922 | ||
923 | /* setup synch transfer registers */ | |
924 | nsp_index_write(base, SYNCREG, sync->SyncRegister); | |
925 | nsp_index_write(base, ACKWIDTH, sync->AckWidth); | |
926 | ||
040cd232 BH |
927 | if (scsi_get_resid(SCpnt) % 4 != 0 || |
928 | scsi_get_resid(SCpnt) <= PAGE_SIZE ) { | |
1da177e4 LT |
929 | data->TransferMode = MODE_IO8; |
930 | } else if (nsp_burst_mode == BURST_MEM32) { | |
931 | data->TransferMode = MODE_MEM32; | |
932 | } else if (nsp_burst_mode == BURST_IO32) { | |
933 | data->TransferMode = MODE_IO32; | |
934 | } else { | |
935 | data->TransferMode = MODE_IO8; | |
936 | } | |
937 | ||
938 | /* setup pdma fifo */ | |
939 | nsp_setup_fifo(data, TRUE); | |
940 | ||
941 | /* clear ack counter */ | |
942 | data->FifoCount = 0; | |
943 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | | |
944 | ACK_COUNTER_CLEAR | | |
945 | REQ_COUNTER_CLEAR | | |
946 | HOST_COUNTER_CLEAR); | |
947 | ||
948 | return 0; | |
949 | } | |
950 | ||
951 | #include "nsp_message.c" | |
952 | /* | |
953 | * interrupt handler | |
954 | */ | |
7d12e780 | 955 | static irqreturn_t nspintr(int irq, void *dev_id) |
1da177e4 LT |
956 | { |
957 | unsigned int base; | |
958 | unsigned char irq_status, irq_phase, phase; | |
0fc82d5e | 959 | struct scsi_cmnd *tmpSC; |
1da177e4 LT |
960 | unsigned char target, lun; |
961 | unsigned int *sync_neg; | |
962 | int i, tmp; | |
963 | nsp_hw_data *data; | |
964 | ||
965 | ||
966 | //nsp_dbg(NSP_DEBUG_INTR, "dev_id=0x%p", dev_id); | |
967 | //nsp_dbg(NSP_DEBUG_INTR, "host=0x%p", ((scsi_info_t *)dev_id)->host); | |
968 | ||
969 | if ( dev_id != NULL && | |
970 | ((scsi_info_t *)dev_id)->host != NULL ) { | |
971 | scsi_info_t *info = (scsi_info_t *)dev_id; | |
972 | ||
973 | data = (nsp_hw_data *)info->host->hostdata; | |
974 | } else { | |
975 | nsp_dbg(NSP_DEBUG_INTR, "host data wrong"); | |
976 | return IRQ_NONE; | |
977 | } | |
978 | ||
979 | //nsp_dbg(NSP_DEBUG_INTR, "&nsp_data_base=0x%p, dev_id=0x%p", &nsp_data_base, dev_id); | |
980 | ||
981 | base = data->BaseAddress; | |
982 | //nsp_dbg(NSP_DEBUG_INTR, "base=0x%x", base); | |
983 | ||
984 | /* | |
985 | * interrupt check | |
986 | */ | |
987 | nsp_write(base, IRQCONTROL, IRQCONTROL_IRQDISABLE); | |
988 | irq_status = nsp_read(base, IRQSTATUS); | |
989 | //nsp_dbg(NSP_DEBUG_INTR, "irq_status=0x%x", irq_status); | |
990 | if ((irq_status == 0xff) || ((irq_status & IRQSTATUS_MASK) == 0)) { | |
991 | nsp_write(base, IRQCONTROL, 0); | |
992 | //nsp_dbg(NSP_DEBUG_INTR, "no irq/shared irq"); | |
993 | return IRQ_NONE; | |
994 | } | |
995 | ||
996 | /* XXX: IMPORTANT | |
997 | * Do not read an irq_phase register if no scsi phase interrupt. | |
998 | * Unless, you should lose a scsi phase interrupt. | |
999 | */ | |
1000 | phase = nsp_index_read(base, SCSIBUSMON); | |
1001 | if((irq_status & IRQSTATUS_SCSI) != 0) { | |
1002 | irq_phase = nsp_index_read(base, IRQPHASESENCE); | |
1003 | } else { | |
1004 | irq_phase = 0; | |
1005 | } | |
1006 | ||
1007 | //nsp_dbg(NSP_DEBUG_INTR, "irq_phase=0x%x", irq_phase); | |
1008 | ||
1009 | /* | |
1010 | * timer interrupt handler (scsi vs timer interrupts) | |
1011 | */ | |
1012 | //nsp_dbg(NSP_DEBUG_INTR, "timercount=%d", data->TimerCount); | |
1013 | if (data->TimerCount != 0) { | |
1014 | //nsp_dbg(NSP_DEBUG_INTR, "stop timer"); | |
1015 | nsp_index_write(base, TIMERCOUNT, 0); | |
1016 | nsp_index_write(base, TIMERCOUNT, 0); | |
1017 | data->TimerCount = 0; | |
1018 | } | |
1019 | ||
1020 | if ((irq_status & IRQSTATUS_MASK) == IRQSTATUS_TIMER && | |
1021 | data->SelectionTimeOut == 0) { | |
1022 | //nsp_dbg(NSP_DEBUG_INTR, "timer start"); | |
1023 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR); | |
1024 | return IRQ_HANDLED; | |
1025 | } | |
1026 | ||
1027 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR | IRQCONTROL_FIFO_CLEAR); | |
1028 | ||
1029 | if ((irq_status & IRQSTATUS_SCSI) && | |
1030 | (irq_phase & SCSI_RESET_IRQ)) { | |
1031 | nsp_msg(KERN_ERR, "bus reset (power off?)"); | |
1032 | ||
1033 | nsphw_init(data); | |
1034 | nsp_bus_reset(data); | |
1035 | ||
1036 | if(data->CurrentSC != NULL) { | |
1037 | tmpSC = data->CurrentSC; | |
1038 | tmpSC->result = (DID_RESET << 16) | | |
1039 | ((tmpSC->SCp.Message & 0xff) << 8) | | |
1040 | ((tmpSC->SCp.Status & 0xff) << 0); | |
1041 | nsp_scsi_done(tmpSC); | |
1042 | } | |
1043 | return IRQ_HANDLED; | |
1044 | } | |
1045 | ||
1046 | if (data->CurrentSC == NULL) { | |
1047 | nsp_msg(KERN_ERR, "CurrentSC==NULL irq_status=0x%x phase=0x%x irq_phase=0x%x this can't be happen. reset everything", irq_status, phase, irq_phase); | |
1048 | nsphw_init(data); | |
1049 | nsp_bus_reset(data); | |
1050 | return IRQ_HANDLED; | |
1051 | } | |
1052 | ||
1053 | tmpSC = data->CurrentSC; | |
1054 | target = tmpSC->device->id; | |
1055 | lun = tmpSC->device->lun; | |
1056 | sync_neg = &(data->Sync[target].SyncNegotiation); | |
1057 | ||
1058 | /* | |
1059 | * parse hardware SCSI irq reasons register | |
1060 | */ | |
1061 | if (irq_status & IRQSTATUS_SCSI) { | |
1062 | if (irq_phase & RESELECT_IRQ) { | |
1063 | nsp_dbg(NSP_DEBUG_INTR, "reselect"); | |
1064 | nsp_write(base, IRQCONTROL, IRQCONTROL_RESELECT_CLEAR); | |
1065 | if (nsp_reselected(tmpSC) != FALSE) { | |
1066 | return IRQ_HANDLED; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | if ((irq_phase & (PHASE_CHANGE_IRQ | LATCHED_BUS_FREE)) == 0) { | |
1071 | return IRQ_HANDLED; | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | //show_phase(tmpSC); | |
1076 | ||
1077 | switch(tmpSC->SCp.phase) { | |
1078 | case PH_SELSTART: | |
1079 | // *sync_neg = SYNC_NOT_YET; | |
1080 | if ((phase & BUSMON_BSY) == 0) { | |
1081 | //nsp_dbg(NSP_DEBUG_INTR, "selection count=%d", data->SelectionTimeOut); | |
1082 | if (data->SelectionTimeOut >= NSP_SELTIMEOUT) { | |
1083 | nsp_dbg(NSP_DEBUG_INTR, "selection time out"); | |
1084 | data->SelectionTimeOut = 0; | |
1085 | nsp_index_write(base, SCSIBUSCTRL, 0); | |
1086 | ||
1087 | tmpSC->result = DID_TIME_OUT << 16; | |
1088 | nsp_scsi_done(tmpSC); | |
1089 | ||
1090 | return IRQ_HANDLED; | |
1091 | } | |
1092 | data->SelectionTimeOut += 1; | |
1093 | nsp_start_timer(tmpSC, 1000/51); | |
1094 | return IRQ_HANDLED; | |
1095 | } | |
1096 | ||
1097 | /* attention assert */ | |
1098 | //nsp_dbg(NSP_DEBUG_INTR, "attention assert"); | |
1099 | data->SelectionTimeOut = 0; | |
1100 | tmpSC->SCp.phase = PH_SELECTED; | |
1101 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN); | |
1102 | udelay(1); | |
1103 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN | AUTODIRECTION | ACKENB); | |
1104 | return IRQ_HANDLED; | |
1105 | ||
1106 | break; | |
1107 | ||
1108 | case PH_RESELECT: | |
1109 | //nsp_dbg(NSP_DEBUG_INTR, "phase reselect"); | |
1110 | // *sync_neg = SYNC_NOT_YET; | |
1111 | if ((phase & BUSMON_PHASE_MASK) != BUSPHASE_MESSAGE_IN) { | |
1112 | ||
1113 | tmpSC->result = DID_ABORT << 16; | |
1114 | nsp_scsi_done(tmpSC); | |
1115 | return IRQ_HANDLED; | |
1116 | } | |
1117 | /* fall thru */ | |
1118 | default: | |
1119 | if ((irq_status & (IRQSTATUS_SCSI | IRQSTATUS_FIFO)) == 0) { | |
1120 | return IRQ_HANDLED; | |
1121 | } | |
1122 | break; | |
1123 | } | |
1124 | ||
1125 | /* | |
1126 | * SCSI sequencer | |
1127 | */ | |
1128 | //nsp_dbg(NSP_DEBUG_INTR, "start scsi seq"); | |
1129 | ||
1130 | /* normal disconnect */ | |
1131 | if (((tmpSC->SCp.phase == PH_MSG_IN) || (tmpSC->SCp.phase == PH_MSG_OUT)) && | |
1132 | (irq_phase & LATCHED_BUS_FREE) != 0 ) { | |
1133 | nsp_dbg(NSP_DEBUG_INTR, "normal disconnect irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase); | |
1134 | ||
1135 | //*sync_neg = SYNC_NOT_YET; | |
1136 | ||
1137 | if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { /* all command complete and return status */ | |
1138 | tmpSC->result = (DID_OK << 16) | | |
1139 | ((tmpSC->SCp.Message & 0xff) << 8) | | |
1140 | ((tmpSC->SCp.Status & 0xff) << 0); | |
1141 | nsp_dbg(NSP_DEBUG_INTR, "command complete result=0x%x", tmpSC->result); | |
1142 | nsp_scsi_done(tmpSC); | |
1143 | ||
1144 | return IRQ_HANDLED; | |
1145 | } | |
1146 | ||
1147 | return IRQ_HANDLED; | |
1148 | } | |
1149 | ||
1150 | ||
1151 | /* check unexpected bus free state */ | |
1152 | if (phase == 0) { | |
1153 | nsp_msg(KERN_DEBUG, "unexpected bus free. irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase); | |
1154 | ||
1155 | *sync_neg = SYNC_NG; | |
1156 | tmpSC->result = DID_ERROR << 16; | |
1157 | nsp_scsi_done(tmpSC); | |
1158 | return IRQ_HANDLED; | |
1159 | } | |
1160 | ||
1161 | switch (phase & BUSMON_PHASE_MASK) { | |
1162 | case BUSPHASE_COMMAND: | |
1163 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_COMMAND"); | |
1164 | if ((phase & BUSMON_REQ) == 0) { | |
1165 | nsp_dbg(NSP_DEBUG_INTR, "REQ == 0"); | |
1166 | return IRQ_HANDLED; | |
1167 | } | |
1168 | ||
1169 | tmpSC->SCp.phase = PH_COMMAND; | |
1170 | ||
1171 | nsp_nexus(tmpSC); | |
1172 | ||
1173 | /* write scsi command */ | |
1174 | nsp_dbg(NSP_DEBUG_INTR, "cmd_len=%d", tmpSC->cmd_len); | |
1175 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER); | |
1176 | for (i = 0; i < tmpSC->cmd_len; i++) { | |
1177 | nsp_index_write(base, COMMANDDATA, tmpSC->cmnd[i]); | |
1178 | } | |
1179 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER | AUTO_COMMAND_GO); | |
1180 | break; | |
1181 | ||
1182 | case BUSPHASE_DATA_OUT: | |
1183 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_OUT"); | |
1184 | ||
1185 | tmpSC->SCp.phase = PH_DATA; | |
1186 | tmpSC->SCp.have_data_in = IO_OUT; | |
1187 | ||
1188 | nsp_pio_write(tmpSC); | |
1189 | ||
1190 | break; | |
1191 | ||
1192 | case BUSPHASE_DATA_IN: | |
1193 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_IN"); | |
1194 | ||
1195 | tmpSC->SCp.phase = PH_DATA; | |
1196 | tmpSC->SCp.have_data_in = IO_IN; | |
1197 | ||
1198 | nsp_pio_read(tmpSC); | |
1199 | ||
1200 | break; | |
1201 | ||
1202 | case BUSPHASE_STATUS: | |
1203 | nsp_dataphase_bypass(tmpSC); | |
1204 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_STATUS"); | |
1205 | ||
1206 | tmpSC->SCp.phase = PH_STATUS; | |
1207 | ||
1208 | tmpSC->SCp.Status = nsp_index_read(base, SCSIDATAWITHACK); | |
1209 | nsp_dbg(NSP_DEBUG_INTR, "message=0x%x status=0x%x", tmpSC->SCp.Message, tmpSC->SCp.Status); | |
1210 | ||
1211 | break; | |
1212 | ||
1213 | case BUSPHASE_MESSAGE_OUT: | |
1214 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_OUT"); | |
1215 | if ((phase & BUSMON_REQ) == 0) { | |
1216 | goto timer_out; | |
1217 | } | |
1218 | ||
1219 | tmpSC->SCp.phase = PH_MSG_OUT; | |
1220 | ||
1221 | //*sync_neg = SYNC_NOT_YET; | |
1222 | ||
1223 | data->MsgLen = i = 0; | |
1224 | data->MsgBuffer[i] = IDENTIFY(TRUE, lun); i++; | |
1225 | ||
1226 | if (*sync_neg == SYNC_NOT_YET) { | |
1227 | data->Sync[target].SyncPeriod = 0; | |
1228 | data->Sync[target].SyncOffset = 0; | |
1229 | ||
1230 | /**/ | |
1231 | data->MsgBuffer[i] = MSG_EXTENDED; i++; | |
1232 | data->MsgBuffer[i] = 3; i++; | |
1233 | data->MsgBuffer[i] = MSG_EXT_SDTR; i++; | |
1234 | data->MsgBuffer[i] = 0x0c; i++; | |
1235 | data->MsgBuffer[i] = 15; i++; | |
1236 | /**/ | |
1237 | } | |
1238 | data->MsgLen = i; | |
1239 | ||
1240 | nsp_analyze_sdtr(tmpSC); | |
1241 | show_message(data); | |
1242 | nsp_message_out(tmpSC); | |
1243 | break; | |
1244 | ||
1245 | case BUSPHASE_MESSAGE_IN: | |
1246 | nsp_dataphase_bypass(tmpSC); | |
1247 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_IN"); | |
1248 | if ((phase & BUSMON_REQ) == 0) { | |
1249 | goto timer_out; | |
1250 | } | |
1251 | ||
1252 | tmpSC->SCp.phase = PH_MSG_IN; | |
1253 | nsp_message_in(tmpSC); | |
1254 | ||
1255 | /**/ | |
1256 | if (*sync_neg == SYNC_NOT_YET) { | |
1257 | //nsp_dbg(NSP_DEBUG_INTR, "sync target=%d,lun=%d",target,lun); | |
1258 | ||
1259 | if (data->MsgLen >= 5 && | |
1260 | data->MsgBuffer[0] == MSG_EXTENDED && | |
1261 | data->MsgBuffer[1] == 3 && | |
1262 | data->MsgBuffer[2] == MSG_EXT_SDTR ) { | |
1263 | data->Sync[target].SyncPeriod = data->MsgBuffer[3]; | |
1264 | data->Sync[target].SyncOffset = data->MsgBuffer[4]; | |
1265 | //nsp_dbg(NSP_DEBUG_INTR, "sync ok, %d %d", data->MsgBuffer[3], data->MsgBuffer[4]); | |
1266 | *sync_neg = SYNC_OK; | |
1267 | } else { | |
1268 | data->Sync[target].SyncPeriod = 0; | |
1269 | data->Sync[target].SyncOffset = 0; | |
1270 | *sync_neg = SYNC_NG; | |
1271 | } | |
1272 | nsp_analyze_sdtr(tmpSC); | |
1273 | } | |
1274 | /**/ | |
1275 | ||
1276 | /* search last messeage byte */ | |
1277 | tmp = -1; | |
1278 | for (i = 0; i < data->MsgLen; i++) { | |
1279 | tmp = data->MsgBuffer[i]; | |
1280 | if (data->MsgBuffer[i] == MSG_EXTENDED) { | |
1281 | i += (1 + data->MsgBuffer[i+1]); | |
1282 | } | |
1283 | } | |
1284 | tmpSC->SCp.Message = tmp; | |
1285 | ||
1286 | nsp_dbg(NSP_DEBUG_INTR, "message=0x%x len=%d", tmpSC->SCp.Message, data->MsgLen); | |
1287 | show_message(data); | |
1288 | ||
1289 | break; | |
1290 | ||
1291 | case BUSPHASE_SELECT: | |
1292 | default: | |
1293 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE other"); | |
1294 | ||
1295 | break; | |
1296 | } | |
1297 | ||
1298 | //nsp_dbg(NSP_DEBUG_INTR, "out"); | |
1299 | return IRQ_HANDLED; | |
1300 | ||
1301 | timer_out: | |
1302 | nsp_start_timer(tmpSC, 1000/102); | |
1303 | return IRQ_HANDLED; | |
1304 | } | |
1305 | ||
1306 | #ifdef NSP_DEBUG | |
1307 | #include "nsp_debug.c" | |
1308 | #endif /* NSP_DEBUG */ | |
1309 | ||
1310 | /*----------------------------------------------------------------*/ | |
1311 | /* look for ninja3 card and init if found */ | |
1312 | /*----------------------------------------------------------------*/ | |
d0be4a7d | 1313 | static struct Scsi_Host *nsp_detect(struct scsi_host_template *sht) |
1da177e4 LT |
1314 | { |
1315 | struct Scsi_Host *host; /* registered host structure */ | |
1316 | nsp_hw_data *data_b = &nsp_data_base, *data; | |
1317 | ||
1318 | nsp_dbg(NSP_DEBUG_INIT, "this_id=%d", sht->this_id); | |
1da177e4 | 1319 | host = scsi_host_alloc(&nsp_driver_template, sizeof(nsp_hw_data)); |
1da177e4 LT |
1320 | if (host == NULL) { |
1321 | nsp_dbg(NSP_DEBUG_INIT, "host failed"); | |
1322 | return NULL; | |
1323 | } | |
1324 | ||
1325 | memcpy(host->hostdata, data_b, sizeof(nsp_hw_data)); | |
1326 | data = (nsp_hw_data *)host->hostdata; | |
1327 | data->ScsiInfo->host = host; | |
1328 | #ifdef NSP_DEBUG | |
1329 | data->CmdId = 0; | |
1330 | #endif | |
1331 | ||
1332 | nsp_dbg(NSP_DEBUG_INIT, "irq=%d,%d", data_b->IrqNumber, ((nsp_hw_data *)host->hostdata)->IrqNumber); | |
1333 | ||
1334 | host->unique_id = data->BaseAddress; | |
1335 | host->io_port = data->BaseAddress; | |
1336 | host->n_io_port = data->NumAddress; | |
1337 | host->irq = data->IrqNumber; | |
1338 | host->base = data->MmioAddress; | |
1339 | ||
1340 | spin_lock_init(&(data->Lock)); | |
1341 | ||
1342 | snprintf(data->nspinfo, | |
1343 | sizeof(data->nspinfo), | |
1344 | "NinjaSCSI-3/32Bi Driver $Revision: 1.23 $ IO:0x%04lx-0x%04lx MMIO(virt addr):0x%04lx IRQ:%02d", | |
1345 | host->io_port, host->io_port + host->n_io_port - 1, | |
1346 | host->base, | |
1347 | host->irq); | |
1348 | sht->name = data->nspinfo; | |
1349 | ||
1350 | nsp_dbg(NSP_DEBUG_INIT, "end"); | |
1351 | ||
1352 | ||
1353 | return host; /* detect done. */ | |
1354 | } | |
1355 | ||
1da177e4 LT |
1356 | /*----------------------------------------------------------------*/ |
1357 | /* return info string */ | |
1358 | /*----------------------------------------------------------------*/ | |
1359 | static const char *nsp_info(struct Scsi_Host *shpnt) | |
1360 | { | |
1361 | nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata; | |
1362 | ||
1363 | return data->nspinfo; | |
1364 | } | |
1365 | ||
1366 | #undef SPRINTF | |
1367 | #define SPRINTF(args...) \ | |
1368 | do { \ | |
1369 | if(length > (pos - buffer)) { \ | |
1370 | pos += snprintf(pos, length - (pos - buffer) + 1, ## args); \ | |
1371 | nsp_dbg(NSP_DEBUG_PROC, "buffer=0x%p pos=0x%p length=%d %d\n", buffer, pos, length, length - (pos - buffer));\ | |
1372 | } \ | |
1373 | } while(0) | |
774251ef AB |
1374 | |
1375 | static int nsp_proc_info(struct Scsi_Host *host, char *buffer, char **start, | |
1376 | off_t offset, int length, int inout) | |
1da177e4 LT |
1377 | { |
1378 | int id; | |
1379 | char *pos = buffer; | |
1380 | int thislength; | |
1381 | int speed; | |
1382 | unsigned long flags; | |
1383 | nsp_hw_data *data; | |
1da177e4 | 1384 | int hostno; |
774251ef | 1385 | |
1da177e4 LT |
1386 | if (inout) { |
1387 | return -EINVAL; | |
1388 | } | |
1389 | ||
1da177e4 | 1390 | hostno = host->host_no; |
1da177e4 LT |
1391 | data = (nsp_hw_data *)host->hostdata; |
1392 | ||
1393 | ||
1394 | SPRINTF("NinjaSCSI status\n\n"); | |
1395 | SPRINTF("Driver version: $Revision: 1.23 $\n"); | |
1396 | SPRINTF("SCSI host No.: %d\n", hostno); | |
1397 | SPRINTF("IRQ: %d\n", host->irq); | |
1398 | SPRINTF("IO: 0x%lx-0x%lx\n", host->io_port, host->io_port + host->n_io_port - 1); | |
1399 | SPRINTF("MMIO(virtual address): 0x%lx-0x%lx\n", host->base, host->base + data->MmioLength - 1); | |
1400 | SPRINTF("sg_tablesize: %d\n", host->sg_tablesize); | |
1401 | ||
1402 | SPRINTF("burst transfer mode: "); | |
1403 | switch (nsp_burst_mode) { | |
1404 | case BURST_IO8: | |
1405 | SPRINTF("io8"); | |
1406 | break; | |
1407 | case BURST_IO32: | |
1408 | SPRINTF("io32"); | |
1409 | break; | |
1410 | case BURST_MEM32: | |
1411 | SPRINTF("mem32"); | |
1412 | break; | |
1413 | default: | |
1414 | SPRINTF("???"); | |
1415 | break; | |
1416 | } | |
1417 | SPRINTF("\n"); | |
1418 | ||
1419 | ||
1420 | spin_lock_irqsave(&(data->Lock), flags); | |
1421 | SPRINTF("CurrentSC: 0x%p\n\n", data->CurrentSC); | |
1422 | spin_unlock_irqrestore(&(data->Lock), flags); | |
1423 | ||
1424 | SPRINTF("SDTR status\n"); | |
1425 | for(id = 0; id < ARRAY_SIZE(data->Sync); id++) { | |
1426 | ||
1427 | SPRINTF("id %d: ", id); | |
1428 | ||
1429 | if (id == host->this_id) { | |
1430 | SPRINTF("----- NinjaSCSI-3 host adapter\n"); | |
1431 | continue; | |
1432 | } | |
1433 | ||
1434 | switch(data->Sync[id].SyncNegotiation) { | |
1435 | case SYNC_OK: | |
1436 | SPRINTF(" sync"); | |
1437 | break; | |
1438 | case SYNC_NG: | |
1439 | SPRINTF("async"); | |
1440 | break; | |
1441 | case SYNC_NOT_YET: | |
1442 | SPRINTF(" none"); | |
1443 | break; | |
1444 | default: | |
1445 | SPRINTF("?????"); | |
1446 | break; | |
1447 | } | |
1448 | ||
1449 | if (data->Sync[id].SyncPeriod != 0) { | |
1450 | speed = 1000000 / (data->Sync[id].SyncPeriod * 4); | |
1451 | ||
1452 | SPRINTF(" transfer %d.%dMB/s, offset %d", | |
1453 | speed / 1000, | |
1454 | speed % 1000, | |
1455 | data->Sync[id].SyncOffset | |
1456 | ); | |
1457 | } | |
1458 | SPRINTF("\n"); | |
1459 | } | |
1460 | ||
1461 | thislength = pos - (buffer + offset); | |
1462 | ||
1463 | if(thislength < 0) { | |
1464 | *start = NULL; | |
1465 | return 0; | |
1466 | } | |
1467 | ||
1468 | ||
1469 | thislength = min(thislength, length); | |
1470 | *start = buffer + offset; | |
1471 | ||
1472 | return thislength; | |
1473 | } | |
1474 | #undef SPRINTF | |
1475 | ||
1476 | /*---------------------------------------------------------------*/ | |
1477 | /* error handler */ | |
1478 | /*---------------------------------------------------------------*/ | |
1479 | ||
1da177e4 | 1480 | /* |
0fc82d5e | 1481 | static int nsp_eh_abort(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
1482 | { |
1483 | nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p", SCpnt); | |
1484 | ||
1485 | return nsp_eh_bus_reset(SCpnt); | |
1486 | }*/ | |
1487 | ||
1da177e4 LT |
1488 | static int nsp_bus_reset(nsp_hw_data *data) |
1489 | { | |
1490 | unsigned int base = data->BaseAddress; | |
1491 | int i; | |
1492 | ||
1493 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); | |
1494 | ||
1495 | nsp_index_write(base, SCSIBUSCTRL, SCSI_RST); | |
1496 | mdelay(100); /* 100ms */ | |
1497 | nsp_index_write(base, SCSIBUSCTRL, 0); | |
1498 | for(i = 0; i < 5; i++) { | |
1499 | nsp_index_read(base, IRQPHASESENCE); /* dummy read */ | |
1500 | } | |
1501 | ||
1502 | nsphw_init_sync(data); | |
1503 | ||
1504 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); | |
1505 | ||
1506 | return SUCCESS; | |
1507 | } | |
1508 | ||
0fc82d5e | 1509 | static int nsp_eh_bus_reset(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
1510 | { |
1511 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
1512 | ||
1513 | nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p", SCpnt); | |
1514 | ||
1515 | return nsp_bus_reset(data); | |
1516 | } | |
1517 | ||
0fc82d5e | 1518 | static int nsp_eh_host_reset(struct scsi_cmnd *SCpnt) |
1da177e4 LT |
1519 | { |
1520 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
1521 | ||
1522 | nsp_dbg(NSP_DEBUG_BUSRESET, "in"); | |
1523 | ||
1524 | nsphw_init(data); | |
1525 | ||
1526 | return SUCCESS; | |
1527 | } | |
1528 | ||
1529 | ||
1530 | /********************************************************************** | |
1531 | PCMCIA functions | |
1532 | **********************************************************************/ | |
1533 | ||
1534 | /*====================================================================== | |
1535 | nsp_cs_attach() creates an "instance" of the driver, allocating | |
1536 | local data structures for one device. The device is registered | |
1537 | with Card Services. | |
1538 | ||
1539 | The dev_link structure is initialized, but we don't actually | |
1540 | configure the card at this point -- we wait until we receive a | |
1541 | card insertion event. | |
1542 | ======================================================================*/ | |
15b99ac1 | 1543 | static int nsp_cs_probe(struct pcmcia_device *link) |
1da177e4 LT |
1544 | { |
1545 | scsi_info_t *info; | |
1da177e4 | 1546 | nsp_hw_data *data = &nsp_data_base; |
15b99ac1 | 1547 | int ret; |
1da177e4 LT |
1548 | |
1549 | nsp_dbg(NSP_DEBUG_INIT, "in"); | |
1550 | ||
1551 | /* Create new SCSI device */ | |
dd00cc48 | 1552 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
f8cfa618 | 1553 | if (info == NULL) { return -ENOMEM; } |
fba395ee | 1554 | info->p_dev = link; |
1da177e4 LT |
1555 | link->priv = info; |
1556 | data->ScsiInfo = info; | |
1557 | ||
1558 | nsp_dbg(NSP_DEBUG_INIT, "info=0x%p", info); | |
1559 | ||
1560 | /* The io structure describes IO port mapping */ | |
90abdc3b DB |
1561 | link->resource[0]->end = 0x10; |
1562 | link->resource[0]->flags = IO_DATA_PATH_WIDTH_AUTO; | |
1da177e4 | 1563 | |
1da177e4 LT |
1564 | /* General socket configuration */ |
1565 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 | 1566 | link->conf.IntType = INT_MEMORY_AND_IO; |
1da177e4 | 1567 | |
15b99ac1 | 1568 | ret = nsp_cs_config(link); |
1da177e4 LT |
1569 | |
1570 | nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link); | |
15b99ac1 | 1571 | return ret; |
1da177e4 LT |
1572 | } /* nsp_cs_attach */ |
1573 | ||
1574 | ||
1575 | /*====================================================================== | |
1576 | This deletes a driver "instance". The device is de-registered | |
1577 | with Card Services. If it has been released, all local data | |
1578 | structures are freed. Otherwise, the structures will be freed | |
1579 | when the device is released. | |
1580 | ======================================================================*/ | |
fba395ee | 1581 | static void nsp_cs_detach(struct pcmcia_device *link) |
1da177e4 | 1582 | { |
1da177e4 LT |
1583 | nsp_dbg(NSP_DEBUG_INIT, "in, link=0x%p", link); |
1584 | ||
e2d40963 DB |
1585 | ((scsi_info_t *)link->priv)->stop = 1; |
1586 | nsp_cs_release(link); | |
1da177e4 | 1587 | |
1da177e4 LT |
1588 | kfree(link->priv); |
1589 | link->priv = NULL; | |
1da177e4 LT |
1590 | } /* nsp_cs_detach */ |
1591 | ||
1592 | ||
1593 | /*====================================================================== | |
1594 | nsp_cs_config() is scheduled to run after a CARD_INSERTION event | |
1595 | is received, to configure the PCMCIA socket, and to make the | |
1596 | ethernet device available to the system. | |
1597 | ======================================================================*/ | |
1da177e4 | 1598 | |
0e6f9d27 DB |
1599 | struct nsp_cs_configdata { |
1600 | nsp_hw_data *data; | |
1601 | win_req_t req; | |
0e6f9d27 | 1602 | }; |
1da177e4 | 1603 | |
0e6f9d27 DB |
1604 | static int nsp_cs_config_check(struct pcmcia_device *p_dev, |
1605 | cistpl_cftable_entry_t *cfg, | |
8e2fc39d | 1606 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 1607 | unsigned int vcc, |
0e6f9d27 DB |
1608 | void *priv_data) |
1609 | { | |
1610 | struct nsp_cs_configdata *cfg_mem = priv_data; | |
1da177e4 | 1611 | |
0e6f9d27 DB |
1612 | if (cfg->index == 0) |
1613 | return -ENODEV; | |
1da177e4 | 1614 | |
0e6f9d27 DB |
1615 | /* Does this card need audio output? */ |
1616 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { | |
1617 | p_dev->conf.Attributes |= CONF_ENABLE_SPKR; | |
1618 | p_dev->conf.Status = CCSR_AUDIO_ENA; | |
1619 | } | |
1da177e4 | 1620 | |
0e6f9d27 DB |
1621 | /* Use power settings for Vcc and Vpp if present */ |
1622 | /* Note that the CIS values need to be rescaled */ | |
1623 | if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) { | |
ad913c11 | 1624 | if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000) |
0e6f9d27 | 1625 | return -ENODEV; |
8e2fc39d | 1626 | else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) { |
ad913c11 | 1627 | if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM]/10000) |
0e6f9d27 | 1628 | return -ENODEV; |
1da177e4 LT |
1629 | } |
1630 | ||
1631 | if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) { | |
0e6f9d27 | 1632 | p_dev->conf.Vpp = |
1da177e4 | 1633 | cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
8e2fc39d | 1634 | } else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM)) { |
0e6f9d27 | 1635 | p_dev->conf.Vpp = |
8e2fc39d | 1636 | dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
1da177e4 LT |
1637 | } |
1638 | ||
1639 | /* Do we need to allocate an interrupt? */ | |
eb14120f | 1640 | p_dev->conf.Attributes |= CONF_ENABLE_IRQ; |
1da177e4 LT |
1641 | |
1642 | /* IO window settings */ | |
90abdc3b | 1643 | p_dev->resource[0]->end = p_dev->resource[1]->end = 0; |
8e2fc39d DB |
1644 | if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { |
1645 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; | |
90abdc3b DB |
1646 | p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; |
1647 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; | |
1648 | p_dev->resource[0]->flags |= | |
1649 | pcmcia_io_cfg_data_width(io->flags); | |
1650 | p_dev->resource[0]->start = io->win[0].base; | |
1651 | p_dev->resource[0]->end = io->win[0].len; | |
1da177e4 | 1652 | if (io->nwin > 1) { |
90abdc3b DB |
1653 | p_dev->resource[1]->flags = |
1654 | p_dev->resource[0]->flags; | |
1655 | p_dev->resource[1]->start = io->win[1].base; | |
1656 | p_dev->resource[1]->end = io->win[1].len; | |
1da177e4 LT |
1657 | } |
1658 | /* This reserves IO space but doesn't actually enable it */ | |
90abdc3b | 1659 | if (pcmcia_request_io(p_dev) != 0) |
1da177e4 LT |
1660 | goto next_entry; |
1661 | } | |
1662 | ||
8e2fc39d | 1663 | if ((cfg->mem.nwin > 0) || (dflt->mem.nwin > 0)) { |
0e6f9d27 | 1664 | cistpl_mem_t *mem = |
8e2fc39d | 1665 | (cfg->mem.nwin) ? &cfg->mem : &dflt->mem; |
0e6f9d27 DB |
1666 | cfg_mem->req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM; |
1667 | cfg_mem->req.Attributes |= WIN_ENABLE; | |
1668 | cfg_mem->req.Base = mem->win[0].host_addr; | |
1669 | cfg_mem->req.Size = mem->win[0].len; | |
1670 | if (cfg_mem->req.Size < 0x1000) | |
1671 | cfg_mem->req.Size = 0x1000; | |
1672 | cfg_mem->req.AccessSpeed = 0; | |
6838b03f | 1673 | if (pcmcia_request_window(p_dev, &cfg_mem->req, &p_dev->win) != 0) |
1da177e4 | 1674 | goto next_entry; |
b5cb259e DB |
1675 | if (pcmcia_map_mem_page(p_dev, p_dev->win, |
1676 | mem->win[0].card_addr) != 0) | |
1da177e4 LT |
1677 | goto next_entry; |
1678 | ||
0e6f9d27 DB |
1679 | cfg_mem->data->MmioAddress = (unsigned long) ioremap_nocache(cfg_mem->req.Base, cfg_mem->req.Size); |
1680 | cfg_mem->data->MmioLength = cfg_mem->req.Size; | |
1da177e4 LT |
1681 | } |
1682 | /* If we got this far, we're cool! */ | |
0e6f9d27 | 1683 | return 0; |
1da177e4 LT |
1684 | } |
1685 | ||
0e6f9d27 DB |
1686 | next_entry: |
1687 | nsp_dbg(NSP_DEBUG_INIT, "next"); | |
1688 | pcmcia_disable_device(p_dev); | |
1689 | return -ENODEV; | |
1690 | } | |
1691 | ||
1692 | static int nsp_cs_config(struct pcmcia_device *link) | |
1693 | { | |
1694 | int ret; | |
1695 | scsi_info_t *info = link->priv; | |
1696 | struct nsp_cs_configdata *cfg_mem; | |
1697 | struct Scsi_Host *host; | |
1698 | nsp_hw_data *data = &nsp_data_base; | |
1699 | ||
1700 | nsp_dbg(NSP_DEBUG_INIT, "in"); | |
1701 | ||
edced191 | 1702 | cfg_mem = kzalloc(sizeof(*cfg_mem), GFP_KERNEL); |
0e6f9d27 DB |
1703 | if (!cfg_mem) |
1704 | return -ENOMEM; | |
1705 | cfg_mem->data = data; | |
1706 | ||
0e6f9d27 | 1707 | ret = pcmcia_loop_config(link, nsp_cs_config_check, cfg_mem); |
e794c01b | 1708 | if (ret) |
0e6f9d27 DB |
1709 | goto cs_failed; |
1710 | ||
eb14120f DB |
1711 | if (pcmcia_request_irq(link, nspintr)) |
1712 | goto cs_failed; | |
0e6f9d27 DB |
1713 | |
1714 | ret = pcmcia_request_configuration(link, &link->conf); | |
1715 | if (ret) | |
1716 | goto cs_failed; | |
1da177e4 LT |
1717 | |
1718 | if (free_ports) { | |
9a017a91 DB |
1719 | if (link->resource[0]) { |
1720 | release_region(link->resource[0]->start, | |
1721 | resource_size(link->resource[0])); | |
1da177e4 | 1722 | } |
9a017a91 DB |
1723 | if (link->resource[1]) { |
1724 | release_region(link->resource[1]->start, | |
1725 | resource_size(link->resource[1])); | |
1da177e4 LT |
1726 | } |
1727 | } | |
1728 | ||
1729 | /* Set port and IRQ */ | |
9a017a91 DB |
1730 | data->BaseAddress = link->resource[0]->start; |
1731 | data->NumAddress = resource_size(link->resource[0]); | |
eb14120f | 1732 | data->IrqNumber = link->irq; |
1da177e4 LT |
1733 | |
1734 | nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d", | |
1735 | data->BaseAddress, data->NumAddress, data->IrqNumber); | |
1736 | ||
1737 | if(nsphw_init(data) == FALSE) { | |
1738 | goto cs_failed; | |
1739 | } | |
1740 | ||
1da177e4 | 1741 | host = nsp_detect(&nsp_driver_template); |
1da177e4 LT |
1742 | |
1743 | if (host == NULL) { | |
1744 | nsp_dbg(NSP_DEBUG_INIT, "detect failed"); | |
1745 | goto cs_failed; | |
1746 | } | |
1747 | ||
1748 | ||
15b99ac1 DB |
1749 | ret = scsi_add_host (host, NULL); |
1750 | if (ret) | |
1751 | goto cs_failed; | |
1752 | ||
1da177e4 LT |
1753 | scsi_scan_host(host); |
1754 | ||
1da177e4 LT |
1755 | info->host = host; |
1756 | ||
1da177e4 | 1757 | /* Finally, report what we've done */ |
70294b46 DB |
1758 | printk(KERN_INFO "nsp_cs: index 0x%02x: ", |
1759 | link->conf.ConfigIndex); | |
1760 | if (link->conf.Vpp) { | |
1761 | printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); | |
1da177e4 LT |
1762 | } |
1763 | if (link->conf.Attributes & CONF_ENABLE_IRQ) { | |
eb14120f | 1764 | printk(", irq %d", link->irq); |
1da177e4 | 1765 | } |
9a017a91 DB |
1766 | if (link->resource[0]) |
1767 | printk(", io %pR", link->resource[0]); | |
1768 | if (link->resource[1]) | |
1769 | printk(" & %pR", link->resource[1]); | |
1da177e4 | 1770 | if (link->win) |
0e6f9d27 DB |
1771 | printk(", mem 0x%06lx-0x%06lx", cfg_mem->req.Base, |
1772 | cfg_mem->req.Base+cfg_mem->req.Size-1); | |
1da177e4 LT |
1773 | printk("\n"); |
1774 | ||
0e6f9d27 | 1775 | kfree(cfg_mem); |
15b99ac1 | 1776 | return 0; |
1da177e4 LT |
1777 | |
1778 | cs_failed: | |
1779 | nsp_dbg(NSP_DEBUG_INIT, "config fail"); | |
1da177e4 | 1780 | nsp_cs_release(link); |
0e6f9d27 | 1781 | kfree(cfg_mem); |
1da177e4 | 1782 | |
15b99ac1 | 1783 | return -ENODEV; |
1da177e4 | 1784 | } /* nsp_cs_config */ |
1da177e4 LT |
1785 | |
1786 | ||
1787 | /*====================================================================== | |
1788 | After a card is removed, nsp_cs_release() will unregister the net | |
1789 | device, and release the PCMCIA configuration. If the device is | |
1790 | still open, this will be postponed until it is closed. | |
1791 | ======================================================================*/ | |
fba395ee | 1792 | static void nsp_cs_release(struct pcmcia_device *link) |
1da177e4 LT |
1793 | { |
1794 | scsi_info_t *info = link->priv; | |
1795 | nsp_hw_data *data = NULL; | |
1796 | ||
1797 | if (info->host == NULL) { | |
1798 | nsp_msg(KERN_DEBUG, "unexpected card release call."); | |
1799 | } else { | |
1800 | data = (nsp_hw_data *)info->host->hostdata; | |
1801 | } | |
1802 | ||
1803 | nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link); | |
1804 | ||
1805 | /* Unlink the device chain */ | |
1da177e4 LT |
1806 | if (info->host != NULL) { |
1807 | scsi_remove_host(info->host); | |
1808 | } | |
1da177e4 LT |
1809 | |
1810 | if (link->win) { | |
1811 | if (data != NULL) { | |
1812 | iounmap((void *)(data->MmioAddress)); | |
1813 | } | |
1da177e4 | 1814 | } |
fba395ee | 1815 | pcmcia_disable_device(link); |
5f2a71fc | 1816 | |
1da177e4 LT |
1817 | if (info->host != NULL) { |
1818 | scsi_host_put(info->host); | |
1819 | } | |
1da177e4 LT |
1820 | } /* nsp_cs_release */ |
1821 | ||
fba395ee | 1822 | static int nsp_cs_suspend(struct pcmcia_device *link) |
98e4c28b | 1823 | { |
98e4c28b DB |
1824 | scsi_info_t *info = link->priv; |
1825 | nsp_hw_data *data; | |
1826 | ||
98e4c28b DB |
1827 | nsp_dbg(NSP_DEBUG_INIT, "event: suspend"); |
1828 | ||
1829 | if (info->host != NULL) { | |
1830 | nsp_msg(KERN_INFO, "clear SDTR status"); | |
1831 | ||
1832 | data = (nsp_hw_data *)info->host->hostdata; | |
1833 | ||
1834 | nsphw_init_sync(data); | |
1835 | } | |
1836 | ||
1837 | info->stop = 1; | |
1838 | ||
98e4c28b DB |
1839 | return 0; |
1840 | } | |
1841 | ||
fba395ee | 1842 | static int nsp_cs_resume(struct pcmcia_device *link) |
98e4c28b | 1843 | { |
98e4c28b DB |
1844 | scsi_info_t *info = link->priv; |
1845 | nsp_hw_data *data; | |
1846 | ||
1847 | nsp_dbg(NSP_DEBUG_INIT, "event: resume"); | |
1848 | ||
98e4c28b DB |
1849 | info->stop = 0; |
1850 | ||
1851 | if (info->host != NULL) { | |
1852 | nsp_msg(KERN_INFO, "reset host and bus"); | |
1853 | ||
1854 | data = (nsp_hw_data *)info->host->hostdata; | |
1855 | ||
1856 | nsphw_init (data); | |
1857 | nsp_bus_reset(data); | |
1858 | } | |
1859 | ||
1860 | return 0; | |
1861 | } | |
1862 | ||
1da177e4 LT |
1863 | /*======================================================================* |
1864 | * module entry point | |
1865 | *====================================================================*/ | |
aba14100 DB |
1866 | static struct pcmcia_device_id nsp_cs_ids[] = { |
1867 | PCMCIA_DEVICE_PROD_ID123("IO DATA", "CBSC16 ", "1", 0x547e66dc, 0x0d63a3fd, 0x51de003a), | |
1868 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-001", "1", 0x534c02bc, 0x52008408, 0x51de003a), | |
1869 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-002", "1", 0x534c02bc, 0xcb09d5b2, 0x51de003a), | |
1870 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-003", "1", 0x534c02bc, 0xbc0ee524, 0x51de003a), | |
1871 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-004", "1", 0x534c02bc, 0x226a7087, 0x51de003a), | |
1872 | PCMCIA_DEVICE_PROD_ID123("WBT", "NinjaSCSI-3", "R1.0", 0xc7ba805f, 0xfdc7c97d, 0x6973710e), | |
1873 | PCMCIA_DEVICE_PROD_ID123("WORKBIT", "UltraNinja-16", "1", 0x28191418, 0xb70f4b09, 0x51de003a), | |
1874 | PCMCIA_DEVICE_NULL | |
1875 | }; | |
1876 | MODULE_DEVICE_TABLE(pcmcia, nsp_cs_ids); | |
1877 | ||
1da177e4 | 1878 | static struct pcmcia_driver nsp_driver = { |
1e212f36 DB |
1879 | .owner = THIS_MODULE, |
1880 | .drv = { | |
1881 | .name = "nsp_cs", | |
1da177e4 | 1882 | }, |
15b99ac1 | 1883 | .probe = nsp_cs_probe, |
cc3b4866 | 1884 | .remove = nsp_cs_detach, |
aba14100 | 1885 | .id_table = nsp_cs_ids, |
98e4c28b DB |
1886 | .suspend = nsp_cs_suspend, |
1887 | .resume = nsp_cs_resume, | |
1da177e4 | 1888 | }; |
1da177e4 LT |
1889 | |
1890 | static int __init nsp_cs_init(void) | |
1891 | { | |
1da177e4 LT |
1892 | nsp_msg(KERN_INFO, "loading..."); |
1893 | ||
1894 | return pcmcia_register_driver(&nsp_driver); | |
1da177e4 LT |
1895 | } |
1896 | ||
1897 | static void __exit nsp_cs_exit(void) | |
1898 | { | |
1899 | nsp_msg(KERN_INFO, "unloading..."); | |
1da177e4 | 1900 | pcmcia_unregister_driver(&nsp_driver); |
1da177e4 LT |
1901 | } |
1902 | ||
1903 | ||
1904 | module_init(nsp_cs_init) | |
1905 | module_exit(nsp_cs_exit) | |
1906 | ||
1907 | /* end */ |