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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 | ||
28 | /* $Id: nsp_cs.c,v 1.23 2003/08/18 11:09:19 elca Exp $ */ | |
29 | ||
30 | #include <linux/version.h> | |
31 | #include <linux/module.h> | |
32 | #include <linux/kernel.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/sched.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/string.h> | |
37 | #include <linux/timer.h> | |
38 | #include <linux/ioport.h> | |
39 | #include <linux/delay.h> | |
40 | #include <linux/interrupt.h> | |
41 | #include <linux/major.h> | |
42 | #include <linux/blkdev.h> | |
43 | #include <linux/stat.h> | |
44 | ||
45 | #include <asm/io.h> | |
46 | #include <asm/irq.h> | |
47 | ||
48 | #include <../drivers/scsi/scsi.h> | |
49 | #include <scsi/scsi_host.h> | |
50 | ||
51 | #include <scsi/scsi.h> | |
52 | #include <scsi/scsi_ioctl.h> | |
53 | ||
54 | #include <pcmcia/version.h> | |
55 | #include <pcmcia/cs_types.h> | |
56 | #include <pcmcia/cs.h> | |
57 | #include <pcmcia/cistpl.h> | |
58 | #include <pcmcia/cisreg.h> | |
59 | #include <pcmcia/ds.h> | |
60 | ||
61 | #include "nsp_cs.h" | |
62 | ||
63 | MODULE_AUTHOR("YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>"); | |
64 | MODULE_DESCRIPTION("WorkBit NinjaSCSI-3 / NinjaSCSI-32Bi(16bit) PCMCIA SCSI host adapter module $Revision: 1.23 $"); | |
65 | MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); | |
66 | #ifdef MODULE_LICENSE | |
67 | MODULE_LICENSE("GPL"); | |
68 | #endif | |
69 | ||
70 | #include "nsp_io.h" | |
71 | ||
72 | /*====================================================================*/ | |
73 | /* Parameters that can be set with 'insmod' */ | |
74 | ||
75 | static int nsp_burst_mode = BURST_MEM32; | |
76 | module_param(nsp_burst_mode, int, 0); | |
77 | MODULE_PARM_DESC(nsp_burst_mode, "Burst transfer mode (0=io8, 1=io32, 2=mem32(default))"); | |
78 | ||
79 | /* Release IO ports after configuration? */ | |
80 | static int free_ports = 0; | |
81 | module_param(free_ports, bool, 0); | |
82 | MODULE_PARM_DESC(free_ports, "Release IO ports after configuration? (default: 0 (=no))"); | |
83 | ||
84 | /* /usr/src/linux/drivers/scsi/hosts.h */ | |
85 | static Scsi_Host_Template nsp_driver_template = { | |
86 | .proc_name = "nsp_cs", | |
87 | .proc_info = nsp_proc_info, | |
88 | .name = "WorkBit NinjaSCSI-3/32Bi(16bit)", | |
89 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) | |
90 | .detect = nsp_detect_old, | |
91 | .release = nsp_release_old, | |
92 | #endif | |
93 | .info = nsp_info, | |
94 | .queuecommand = nsp_queuecommand, | |
95 | /* .eh_strategy_handler = nsp_eh_strategy,*/ | |
96 | /* .eh_abort_handler = nsp_eh_abort,*/ | |
97 | /* .eh_device_reset_handler = nsp_eh_device_reset,*/ | |
98 | .eh_bus_reset_handler = nsp_eh_bus_reset, | |
99 | .eh_host_reset_handler = nsp_eh_host_reset, | |
100 | .can_queue = 1, | |
101 | .this_id = NSP_INITIATOR_ID, | |
102 | .sg_tablesize = SG_ALL, | |
103 | .cmd_per_lun = 1, | |
104 | .use_clustering = DISABLE_CLUSTERING, | |
105 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,2)) | |
106 | .use_new_eh_code = 1, | |
107 | #endif | |
108 | }; | |
109 | ||
110 | static dev_link_t *dev_list = NULL; | |
111 | static dev_info_t dev_info = {"nsp_cs"}; | |
112 | ||
113 | static nsp_hw_data nsp_data_base; /* attach <-> detect glue */ | |
114 | ||
115 | ||
116 | ||
117 | /* | |
118 | * debug, error print | |
119 | */ | |
120 | #ifndef NSP_DEBUG | |
121 | # define NSP_DEBUG_MASK 0x000000 | |
122 | # define nsp_msg(type, args...) nsp_cs_message("", 0, (type), args) | |
123 | # define nsp_dbg(mask, args...) /* */ | |
124 | #else | |
125 | # define NSP_DEBUG_MASK 0xffffff | |
126 | # define nsp_msg(type, args...) \ | |
127 | nsp_cs_message (__FUNCTION__, __LINE__, (type), args) | |
128 | # define nsp_dbg(mask, args...) \ | |
129 | nsp_cs_dmessage(__FUNCTION__, __LINE__, (mask), args) | |
130 | #endif | |
131 | ||
132 | #define NSP_DEBUG_QUEUECOMMAND BIT(0) | |
133 | #define NSP_DEBUG_REGISTER BIT(1) | |
134 | #define NSP_DEBUG_AUTOSCSI BIT(2) | |
135 | #define NSP_DEBUG_INTR BIT(3) | |
136 | #define NSP_DEBUG_SGLIST BIT(4) | |
137 | #define NSP_DEBUG_BUSFREE BIT(5) | |
138 | #define NSP_DEBUG_CDB_CONTENTS BIT(6) | |
139 | #define NSP_DEBUG_RESELECTION BIT(7) | |
140 | #define NSP_DEBUG_MSGINOCCUR BIT(8) | |
141 | #define NSP_DEBUG_EEPROM BIT(9) | |
142 | #define NSP_DEBUG_MSGOUTOCCUR BIT(10) | |
143 | #define NSP_DEBUG_BUSRESET BIT(11) | |
144 | #define NSP_DEBUG_RESTART BIT(12) | |
145 | #define NSP_DEBUG_SYNC BIT(13) | |
146 | #define NSP_DEBUG_WAIT BIT(14) | |
147 | #define NSP_DEBUG_TARGETFLAG BIT(15) | |
148 | #define NSP_DEBUG_PROC BIT(16) | |
149 | #define NSP_DEBUG_INIT BIT(17) | |
150 | #define NSP_DEBUG_DATA_IO BIT(18) | |
151 | #define NSP_SPECIAL_PRINT_REGISTER BIT(20) | |
152 | ||
153 | #define NSP_DEBUG_BUF_LEN 150 | |
154 | ||
155 | static void nsp_cs_message(const char *func, int line, char *type, char *fmt, ...) | |
156 | { | |
157 | va_list args; | |
158 | char buf[NSP_DEBUG_BUF_LEN]; | |
159 | ||
160 | va_start(args, fmt); | |
161 | vsnprintf(buf, sizeof(buf), fmt, args); | |
162 | va_end(args); | |
163 | ||
164 | #ifndef NSP_DEBUG | |
165 | printk("%snsp_cs: %s\n", type, buf); | |
166 | #else | |
167 | printk("%snsp_cs: %s (%d): %s\n", type, func, line, buf); | |
168 | #endif | |
169 | } | |
170 | ||
171 | #ifdef NSP_DEBUG | |
172 | static void nsp_cs_dmessage(const char *func, int line, int mask, char *fmt, ...) | |
173 | { | |
174 | va_list args; | |
175 | char buf[NSP_DEBUG_BUF_LEN]; | |
176 | ||
177 | va_start(args, fmt); | |
178 | vsnprintf(buf, sizeof(buf), fmt, args); | |
179 | va_end(args); | |
180 | ||
181 | if (mask & NSP_DEBUG_MASK) { | |
182 | printk("nsp_cs-debug: 0x%x %s (%d): %s\n", mask, func, line, buf); | |
183 | } | |
184 | } | |
185 | #endif | |
186 | ||
187 | /***********************************************************/ | |
188 | ||
189 | /*==================================================== | |
190 | * Clenaup parameters and call done() functions. | |
191 | * You must be set SCpnt->result before call this function. | |
192 | */ | |
193 | static void nsp_scsi_done(Scsi_Cmnd *SCpnt) | |
194 | { | |
195 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
196 | ||
197 | data->CurrentSC = NULL; | |
198 | ||
199 | SCpnt->scsi_done(SCpnt); | |
200 | } | |
201 | ||
202 | static int nsp_queuecommand(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) | |
203 | { | |
204 | #ifdef NSP_DEBUG | |
205 | /*unsigned int host_id = SCpnt->device->host->this_id;*/ | |
206 | /*unsigned int base = SCpnt->device->host->io_port;*/ | |
207 | unsigned char target = SCpnt->device->id; | |
208 | #endif | |
209 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
210 | ||
211 | nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "SCpnt=0x%p target=%d lun=%d buff=0x%p bufflen=%d use_sg=%d", | |
212 | SCpnt, target, SCpnt->device->lun, SCpnt->request_buffer, SCpnt->request_bufflen, SCpnt->use_sg); | |
213 | //nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "before CurrentSC=0x%p", data->CurrentSC); | |
214 | ||
215 | SCpnt->scsi_done = done; | |
216 | ||
217 | if (data->CurrentSC != NULL) { | |
218 | nsp_msg(KERN_DEBUG, "CurrentSC!=NULL this can't be happen"); | |
219 | SCpnt->result = DID_BAD_TARGET << 16; | |
220 | nsp_scsi_done(SCpnt); | |
221 | return 0; | |
222 | } | |
223 | ||
224 | #if 0 | |
225 | /* XXX: pcmcia-cs generates SCSI command with "scsi_info" utility. | |
226 | This makes kernel crash when suspending... */ | |
227 | if (data->ScsiInfo->stop != 0) { | |
228 | nsp_msg(KERN_INFO, "suspending device. reject command."); | |
229 | SCpnt->result = DID_BAD_TARGET << 16; | |
230 | nsp_scsi_done(SCpnt); | |
231 | return SCSI_MLQUEUE_HOST_BUSY; | |
232 | } | |
233 | #endif | |
234 | ||
235 | show_command(SCpnt); | |
236 | ||
237 | data->CurrentSC = SCpnt; | |
238 | ||
239 | SCpnt->SCp.Status = CHECK_CONDITION; | |
240 | SCpnt->SCp.Message = 0; | |
241 | SCpnt->SCp.have_data_in = IO_UNKNOWN; | |
242 | SCpnt->SCp.sent_command = 0; | |
243 | SCpnt->SCp.phase = PH_UNDETERMINED; | |
244 | SCpnt->resid = SCpnt->request_bufflen; | |
245 | ||
246 | /* setup scratch area | |
247 | SCp.ptr : buffer pointer | |
248 | SCp.this_residual : buffer length | |
249 | SCp.buffer : next buffer | |
250 | SCp.buffers_residual : left buffers in list | |
251 | SCp.phase : current state of the command */ | |
252 | if (SCpnt->use_sg) { | |
253 | SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer; | |
254 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
255 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
256 | SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1; | |
257 | } else { | |
258 | SCpnt->SCp.ptr = (char *) SCpnt->request_buffer; | |
259 | SCpnt->SCp.this_residual = SCpnt->request_bufflen; | |
260 | SCpnt->SCp.buffer = NULL; | |
261 | SCpnt->SCp.buffers_residual = 0; | |
262 | } | |
263 | ||
264 | if (nsphw_start_selection(SCpnt) == FALSE) { | |
265 | nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "selection fail"); | |
266 | SCpnt->result = DID_BUS_BUSY << 16; | |
267 | nsp_scsi_done(SCpnt); | |
268 | return 0; | |
269 | } | |
270 | ||
271 | ||
272 | //nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "out"); | |
273 | #ifdef NSP_DEBUG | |
274 | data->CmdId++; | |
275 | #endif | |
276 | return 0; | |
277 | } | |
278 | ||
279 | /* | |
280 | * setup PIO FIFO transfer mode and enable/disable to data out | |
281 | */ | |
282 | static void nsp_setup_fifo(nsp_hw_data *data, int enabled) | |
283 | { | |
284 | unsigned int base = data->BaseAddress; | |
285 | unsigned char transfer_mode_reg; | |
286 | ||
287 | //nsp_dbg(NSP_DEBUG_DATA_IO, "enabled=%d", enabled); | |
288 | ||
289 | if (enabled != FALSE) { | |
290 | transfer_mode_reg = TRANSFER_GO | BRAIND; | |
291 | } else { | |
292 | transfer_mode_reg = 0; | |
293 | } | |
294 | ||
295 | transfer_mode_reg |= data->TransferMode; | |
296 | ||
297 | nsp_index_write(base, TRANSFERMODE, transfer_mode_reg); | |
298 | } | |
299 | ||
300 | static void nsphw_init_sync(nsp_hw_data *data) | |
301 | { | |
302 | sync_data tmp_sync = { .SyncNegotiation = SYNC_NOT_YET, | |
303 | .SyncPeriod = 0, | |
304 | .SyncOffset = 0 | |
305 | }; | |
306 | int i; | |
307 | ||
308 | /* setup sync data */ | |
309 | for ( i = 0; i < ARRAY_SIZE(data->Sync); i++ ) { | |
310 | data->Sync[i] = tmp_sync; | |
311 | } | |
312 | } | |
313 | ||
314 | /* | |
315 | * Initialize Ninja hardware | |
316 | */ | |
317 | static int nsphw_init(nsp_hw_data *data) | |
318 | { | |
319 | unsigned int base = data->BaseAddress; | |
320 | ||
321 | nsp_dbg(NSP_DEBUG_INIT, "in base=0x%x", base); | |
322 | ||
323 | data->ScsiClockDiv = CLOCK_40M | FAST_20; | |
324 | data->CurrentSC = NULL; | |
325 | data->FifoCount = 0; | |
326 | data->TransferMode = MODE_IO8; | |
327 | ||
328 | nsphw_init_sync(data); | |
329 | ||
330 | /* block all interrupts */ | |
331 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); | |
332 | ||
333 | /* setup SCSI interface */ | |
334 | nsp_write(base, IFSELECT, IF_IFSEL); | |
335 | ||
336 | nsp_index_write(base, SCSIIRQMODE, 0); | |
337 | ||
338 | nsp_index_write(base, TRANSFERMODE, MODE_IO8); | |
339 | nsp_index_write(base, CLOCKDIV, data->ScsiClockDiv); | |
340 | ||
341 | nsp_index_write(base, PARITYCTRL, 0); | |
342 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | | |
343 | ACK_COUNTER_CLEAR | | |
344 | REQ_COUNTER_CLEAR | | |
345 | HOST_COUNTER_CLEAR); | |
346 | ||
347 | /* setup fifo asic */ | |
348 | nsp_write(base, IFSELECT, IF_REGSEL); | |
349 | nsp_index_write(base, TERMPWRCTRL, 0); | |
350 | if ((nsp_index_read(base, OTHERCONTROL) & TPWR_SENSE) == 0) { | |
351 | nsp_msg(KERN_INFO, "terminator power on"); | |
352 | nsp_index_write(base, TERMPWRCTRL, POWER_ON); | |
353 | } | |
354 | ||
355 | nsp_index_write(base, TIMERCOUNT, 0); | |
356 | nsp_index_write(base, TIMERCOUNT, 0); /* requires 2 times!! */ | |
357 | ||
358 | nsp_index_write(base, SYNCREG, 0); | |
359 | nsp_index_write(base, ACKWIDTH, 0); | |
360 | ||
361 | /* enable interrupts and ack them */ | |
362 | nsp_index_write(base, SCSIIRQMODE, SCSI_PHASE_CHANGE_EI | | |
363 | RESELECT_EI | | |
364 | SCSI_RESET_IRQ_EI ); | |
365 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); | |
366 | ||
367 | nsp_setup_fifo(data, FALSE); | |
368 | ||
369 | return TRUE; | |
370 | } | |
371 | ||
372 | /* | |
373 | * Start selection phase | |
374 | */ | |
375 | static int nsphw_start_selection(Scsi_Cmnd *SCpnt) | |
376 | { | |
377 | unsigned int host_id = SCpnt->device->host->this_id; | |
378 | unsigned int base = SCpnt->device->host->io_port; | |
379 | unsigned char target = SCpnt->device->id; | |
380 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
381 | int time_out; | |
382 | unsigned char phase, arbit; | |
383 | ||
384 | //nsp_dbg(NSP_DEBUG_RESELECTION, "in"); | |
385 | ||
386 | phase = nsp_index_read(base, SCSIBUSMON); | |
387 | if(phase != BUSMON_BUS_FREE) { | |
388 | //nsp_dbg(NSP_DEBUG_RESELECTION, "bus busy"); | |
389 | return FALSE; | |
390 | } | |
391 | ||
392 | /* start arbitration */ | |
393 | //nsp_dbg(NSP_DEBUG_RESELECTION, "start arbit"); | |
394 | SCpnt->SCp.phase = PH_ARBSTART; | |
395 | nsp_index_write(base, SETARBIT, ARBIT_GO); | |
396 | ||
397 | time_out = 1000; | |
398 | do { | |
399 | /* XXX: what a stupid chip! */ | |
400 | arbit = nsp_index_read(base, ARBITSTATUS); | |
401 | //nsp_dbg(NSP_DEBUG_RESELECTION, "arbit=%d, wait_count=%d", arbit, wait_count); | |
402 | udelay(1); /* hold 1.2us */ | |
403 | } while((arbit & (ARBIT_WIN | ARBIT_FAIL)) == 0 && | |
404 | (time_out-- != 0)); | |
405 | ||
406 | if (!(arbit & ARBIT_WIN)) { | |
407 | //nsp_dbg(NSP_DEBUG_RESELECTION, "arbit fail"); | |
408 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); | |
409 | return FALSE; | |
410 | } | |
411 | ||
412 | /* assert select line */ | |
413 | //nsp_dbg(NSP_DEBUG_RESELECTION, "assert SEL line"); | |
414 | SCpnt->SCp.phase = PH_SELSTART; | |
415 | udelay(3); /* wait 2.4us */ | |
416 | nsp_index_write(base, SCSIDATALATCH, BIT(host_id) | BIT(target)); | |
417 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_ATN); | |
418 | udelay(2); /* wait >1.2us */ | |
419 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_DATAOUT_ENB | SCSI_ATN); | |
420 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); | |
421 | /*udelay(1);*/ /* wait >90ns */ | |
422 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_DATAOUT_ENB | SCSI_ATN); | |
423 | ||
424 | /* check selection timeout */ | |
425 | nsp_start_timer(SCpnt, 1000/51); | |
426 | data->SelectionTimeOut = 1; | |
427 | ||
428 | return TRUE; | |
429 | } | |
430 | ||
431 | struct nsp_sync_table { | |
432 | unsigned int min_period; | |
433 | unsigned int max_period; | |
434 | unsigned int chip_period; | |
435 | unsigned int ack_width; | |
436 | }; | |
437 | ||
438 | static struct nsp_sync_table nsp_sync_table_40M[] = { | |
439 | {0x0c, 0x0c, 0x1, 0}, /* 20MB 50ns*/ | |
440 | {0x19, 0x19, 0x3, 1}, /* 10MB 100ns*/ | |
441 | {0x1a, 0x25, 0x5, 2}, /* 7.5MB 150ns*/ | |
442 | {0x26, 0x32, 0x7, 3}, /* 5MB 200ns*/ | |
443 | { 0, 0, 0, 0}, | |
444 | }; | |
445 | ||
446 | static struct nsp_sync_table nsp_sync_table_20M[] = { | |
447 | {0x19, 0x19, 0x1, 0}, /* 10MB 100ns*/ | |
448 | {0x1a, 0x25, 0x2, 0}, /* 7.5MB 150ns*/ | |
449 | {0x26, 0x32, 0x3, 1}, /* 5MB 200ns*/ | |
450 | { 0, 0, 0, 0}, | |
451 | }; | |
452 | ||
453 | /* | |
454 | * setup synchronous data transfer mode | |
455 | */ | |
456 | static int nsp_analyze_sdtr(Scsi_Cmnd *SCpnt) | |
457 | { | |
458 | unsigned char target = SCpnt->device->id; | |
459 | // unsigned char lun = SCpnt->device->lun; | |
460 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
461 | sync_data *sync = &(data->Sync[target]); | |
462 | struct nsp_sync_table *sync_table; | |
463 | unsigned int period, offset; | |
464 | int i; | |
465 | ||
466 | ||
467 | nsp_dbg(NSP_DEBUG_SYNC, "in"); | |
468 | ||
469 | period = sync->SyncPeriod; | |
470 | offset = sync->SyncOffset; | |
471 | ||
472 | nsp_dbg(NSP_DEBUG_SYNC, "period=0x%x, offset=0x%x", period, offset); | |
473 | ||
474 | if ((data->ScsiClockDiv & (BIT(0)|BIT(1))) == CLOCK_20M) { | |
475 | sync_table = nsp_sync_table_20M; | |
476 | } else { | |
477 | sync_table = nsp_sync_table_40M; | |
478 | } | |
479 | ||
480 | for ( i = 0; sync_table->max_period != 0; i++, sync_table++) { | |
481 | if ( period >= sync_table->min_period && | |
482 | period <= sync_table->max_period ) { | |
483 | break; | |
484 | } | |
485 | } | |
486 | ||
487 | if (period != 0 && sync_table->max_period == 0) { | |
488 | /* | |
489 | * No proper period/offset found | |
490 | */ | |
491 | nsp_dbg(NSP_DEBUG_SYNC, "no proper period/offset"); | |
492 | ||
493 | sync->SyncPeriod = 0; | |
494 | sync->SyncOffset = 0; | |
495 | sync->SyncRegister = 0; | |
496 | sync->AckWidth = 0; | |
497 | ||
498 | return FALSE; | |
499 | } | |
500 | ||
501 | sync->SyncRegister = (sync_table->chip_period << SYNCREG_PERIOD_SHIFT) | | |
502 | (offset & SYNCREG_OFFSET_MASK); | |
503 | sync->AckWidth = sync_table->ack_width; | |
504 | ||
505 | nsp_dbg(NSP_DEBUG_SYNC, "sync_reg=0x%x, ack_width=0x%x", sync->SyncRegister, sync->AckWidth); | |
506 | ||
507 | return TRUE; | |
508 | } | |
509 | ||
510 | ||
511 | /* | |
512 | * start ninja hardware timer | |
513 | */ | |
514 | static void nsp_start_timer(Scsi_Cmnd *SCpnt, int time) | |
515 | { | |
516 | unsigned int base = SCpnt->device->host->io_port; | |
517 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
518 | ||
519 | //nsp_dbg(NSP_DEBUG_INTR, "in SCpnt=0x%p, time=%d", SCpnt, time); | |
520 | data->TimerCount = time; | |
521 | nsp_index_write(base, TIMERCOUNT, time); | |
522 | } | |
523 | ||
524 | /* | |
525 | * wait for bus phase change | |
526 | */ | |
527 | static int nsp_negate_signal(Scsi_Cmnd *SCpnt, unsigned char mask, char *str) | |
528 | { | |
529 | unsigned int base = SCpnt->device->host->io_port; | |
530 | unsigned char reg; | |
531 | int time_out; | |
532 | ||
533 | //nsp_dbg(NSP_DEBUG_INTR, "in"); | |
534 | ||
535 | time_out = 100; | |
536 | ||
537 | do { | |
538 | reg = nsp_index_read(base, SCSIBUSMON); | |
539 | if (reg == 0xff) { | |
540 | break; | |
541 | } | |
542 | } while ((time_out-- != 0) && (reg & mask) != 0); | |
543 | ||
544 | if (time_out == 0) { | |
545 | nsp_msg(KERN_DEBUG, " %s signal off timeut", str); | |
546 | } | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
551 | /* | |
552 | * expect Ninja Irq | |
553 | */ | |
554 | static int nsp_expect_signal(Scsi_Cmnd *SCpnt, | |
555 | unsigned char current_phase, | |
556 | unsigned char mask) | |
557 | { | |
558 | unsigned int base = SCpnt->device->host->io_port; | |
559 | int time_out; | |
560 | unsigned char phase, i_src; | |
561 | ||
562 | //nsp_dbg(NSP_DEBUG_INTR, "current_phase=0x%x, mask=0x%x", current_phase, mask); | |
563 | ||
564 | time_out = 100; | |
565 | do { | |
566 | phase = nsp_index_read(base, SCSIBUSMON); | |
567 | if (phase == 0xff) { | |
568 | //nsp_dbg(NSP_DEBUG_INTR, "ret -1"); | |
569 | return -1; | |
570 | } | |
571 | i_src = nsp_read(base, IRQSTATUS); | |
572 | if (i_src & IRQSTATUS_SCSI) { | |
573 | //nsp_dbg(NSP_DEBUG_INTR, "ret 0 found scsi signal"); | |
574 | return 0; | |
575 | } | |
576 | if ((phase & mask) != 0 && (phase & BUSMON_PHASE_MASK) == current_phase) { | |
577 | //nsp_dbg(NSP_DEBUG_INTR, "ret 1 phase=0x%x", phase); | |
578 | return 1; | |
579 | } | |
580 | } while(time_out-- != 0); | |
581 | ||
582 | //nsp_dbg(NSP_DEBUG_INTR, "timeout"); | |
583 | return -1; | |
584 | } | |
585 | ||
586 | /* | |
587 | * transfer SCSI message | |
588 | */ | |
589 | static int nsp_xfer(Scsi_Cmnd *SCpnt, int phase) | |
590 | { | |
591 | unsigned int base = SCpnt->device->host->io_port; | |
592 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
593 | char *buf = data->MsgBuffer; | |
594 | int len = min(MSGBUF_SIZE, data->MsgLen); | |
595 | int ptr; | |
596 | int ret; | |
597 | ||
598 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in"); | |
599 | for (ptr = 0; len > 0; len--, ptr++) { | |
600 | ||
601 | ret = nsp_expect_signal(SCpnt, phase, BUSMON_REQ); | |
602 | if (ret <= 0) { | |
603 | nsp_dbg(NSP_DEBUG_DATA_IO, "xfer quit"); | |
604 | return 0; | |
605 | } | |
606 | ||
607 | /* if last byte, negate ATN */ | |
608 | if (len == 1 && SCpnt->SCp.phase == PH_MSG_OUT) { | |
609 | nsp_index_write(base, SCSIBUSCTRL, AUTODIRECTION | ACKENB); | |
610 | } | |
611 | ||
612 | /* read & write message */ | |
613 | if (phase & BUSMON_IO) { | |
614 | nsp_dbg(NSP_DEBUG_DATA_IO, "read msg"); | |
615 | buf[ptr] = nsp_index_read(base, SCSIDATAWITHACK); | |
616 | } else { | |
617 | nsp_dbg(NSP_DEBUG_DATA_IO, "write msg"); | |
618 | nsp_index_write(base, SCSIDATAWITHACK, buf[ptr]); | |
619 | } | |
620 | nsp_negate_signal(SCpnt, BUSMON_ACK, "xfer<ack>"); | |
621 | ||
622 | } | |
623 | return len; | |
624 | } | |
625 | ||
626 | /* | |
627 | * get extra SCSI data from fifo | |
628 | */ | |
629 | static int nsp_dataphase_bypass(Scsi_Cmnd *SCpnt) | |
630 | { | |
631 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
632 | unsigned int count; | |
633 | ||
634 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in"); | |
635 | ||
636 | if (SCpnt->SCp.have_data_in != IO_IN) { | |
637 | return 0; | |
638 | } | |
639 | ||
640 | count = nsp_fifo_count(SCpnt); | |
641 | if (data->FifoCount == count) { | |
642 | //nsp_dbg(NSP_DEBUG_DATA_IO, "not use bypass quirk"); | |
643 | return 0; | |
644 | } | |
645 | ||
646 | /* | |
647 | * XXX: NSP_QUIRK | |
648 | * data phase skip only occures in case of SCSI_LOW_READ | |
649 | */ | |
650 | nsp_dbg(NSP_DEBUG_DATA_IO, "use bypass quirk"); | |
651 | SCpnt->SCp.phase = PH_DATA; | |
652 | nsp_pio_read(SCpnt); | |
653 | nsp_setup_fifo(data, FALSE); | |
654 | ||
655 | return 0; | |
656 | } | |
657 | ||
658 | /* | |
659 | * accept reselection | |
660 | */ | |
661 | static int nsp_reselected(Scsi_Cmnd *SCpnt) | |
662 | { | |
663 | unsigned int base = SCpnt->device->host->io_port; | |
664 | unsigned int host_id = SCpnt->device->host->this_id; | |
665 | //nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
666 | unsigned char bus_reg; | |
667 | unsigned char id_reg, tmp; | |
668 | int target; | |
669 | ||
670 | nsp_dbg(NSP_DEBUG_RESELECTION, "in"); | |
671 | ||
672 | id_reg = nsp_index_read(base, RESELECTID); | |
673 | tmp = id_reg & (~BIT(host_id)); | |
674 | target = 0; | |
675 | while(tmp != 0) { | |
676 | if (tmp & BIT(0)) { | |
677 | break; | |
678 | } | |
679 | tmp >>= 1; | |
680 | target++; | |
681 | } | |
682 | ||
683 | if (SCpnt->device->id != target) { | |
684 | nsp_msg(KERN_ERR, "XXX: reselect ID must be %d in this implementation.", target); | |
685 | } | |
686 | ||
687 | nsp_negate_signal(SCpnt, BUSMON_SEL, "reselect<SEL>"); | |
688 | ||
689 | nsp_nexus(SCpnt); | |
690 | bus_reg = nsp_index_read(base, SCSIBUSCTRL) & ~(SCSI_BSY | SCSI_ATN); | |
691 | nsp_index_write(base, SCSIBUSCTRL, bus_reg); | |
692 | nsp_index_write(base, SCSIBUSCTRL, bus_reg | AUTODIRECTION | ACKENB); | |
693 | ||
694 | return TRUE; | |
695 | } | |
696 | ||
697 | /* | |
698 | * count how many data transferd | |
699 | */ | |
700 | static int nsp_fifo_count(Scsi_Cmnd *SCpnt) | |
701 | { | |
702 | unsigned int base = SCpnt->device->host->io_port; | |
703 | unsigned int count; | |
704 | unsigned int l, m, h, dummy; | |
705 | ||
706 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | ACK_COUNTER); | |
707 | ||
708 | l = nsp_index_read(base, TRANSFERCOUNT); | |
709 | m = nsp_index_read(base, TRANSFERCOUNT); | |
710 | h = nsp_index_read(base, TRANSFERCOUNT); | |
711 | dummy = nsp_index_read(base, TRANSFERCOUNT); /* required this! */ | |
712 | ||
713 | count = (h << 16) | (m << 8) | (l << 0); | |
714 | ||
715 | //nsp_dbg(NSP_DEBUG_DATA_IO, "count=0x%x", count); | |
716 | ||
717 | return count; | |
718 | } | |
719 | ||
720 | /* fifo size */ | |
721 | #define RFIFO_CRIT 64 | |
722 | #define WFIFO_CRIT 64 | |
723 | ||
724 | /* | |
725 | * read data in DATA IN phase | |
726 | */ | |
727 | static void nsp_pio_read(Scsi_Cmnd *SCpnt) | |
728 | { | |
729 | unsigned int base = SCpnt->device->host->io_port; | |
730 | unsigned long mmio_base = SCpnt->device->host->base; | |
731 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
732 | long time_out; | |
733 | int ocount, res; | |
734 | unsigned char stat, fifo_stat; | |
735 | ||
736 | ocount = data->FifoCount; | |
737 | ||
738 | 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", | |
739 | SCpnt, SCpnt->resid, ocount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual); | |
740 | ||
741 | time_out = 1000; | |
742 | ||
743 | while ((time_out-- != 0) && | |
744 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0 ) ) { | |
745 | ||
746 | stat = nsp_index_read(base, SCSIBUSMON); | |
747 | stat &= BUSMON_PHASE_MASK; | |
748 | ||
749 | ||
750 | res = nsp_fifo_count(SCpnt) - ocount; | |
751 | //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); | |
752 | if (res == 0) { /* if some data avilable ? */ | |
753 | if (stat == BUSPHASE_DATA_IN) { /* phase changed? */ | |
754 | //nsp_dbg(NSP_DEBUG_DATA_IO, " wait for data this=%d", SCpnt->SCp.this_residual); | |
755 | continue; | |
756 | } else { | |
757 | nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x", stat); | |
758 | break; | |
759 | } | |
760 | } | |
761 | ||
762 | fifo_stat = nsp_read(base, FIFOSTATUS); | |
763 | if ((fifo_stat & FIFOSTATUS_FULL_EMPTY) == 0 && | |
764 | stat == BUSPHASE_DATA_IN) { | |
765 | continue; | |
766 | } | |
767 | ||
768 | res = min(res, SCpnt->SCp.this_residual); | |
769 | ||
770 | switch (data->TransferMode) { | |
771 | case MODE_IO32: | |
772 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
773 | nsp_fifo32_read(base, SCpnt->SCp.ptr, res >> 2); | |
774 | break; | |
775 | case MODE_IO8: | |
776 | nsp_fifo8_read (base, SCpnt->SCp.ptr, res ); | |
777 | break; | |
778 | ||
779 | case MODE_MEM32: | |
780 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
781 | nsp_mmio_fifo32_read(mmio_base, SCpnt->SCp.ptr, res >> 2); | |
782 | break; | |
783 | ||
784 | default: | |
785 | nsp_dbg(NSP_DEBUG_DATA_IO, "unknown read mode"); | |
786 | return; | |
787 | } | |
788 | ||
789 | SCpnt->resid -= res; | |
790 | SCpnt->SCp.ptr += res; | |
791 | SCpnt->SCp.this_residual -= res; | |
792 | ocount += res; | |
793 | //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this_residual=0x%x ocount=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount); | |
794 | ||
795 | /* go to next scatter list if available */ | |
796 | if (SCpnt->SCp.this_residual == 0 && | |
797 | SCpnt->SCp.buffers_residual != 0 ) { | |
798 | //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next timeout=%d", time_out); | |
799 | SCpnt->SCp.buffers_residual--; | |
800 | SCpnt->SCp.buffer++; | |
801 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
802 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
803 | time_out = 1000; | |
804 | ||
805 | //nsp_dbg(NSP_DEBUG_DATA_IO, "page: 0x%p, off: 0x%x", SCpnt->SCp.buffer->page, SCpnt->SCp.buffer->offset); | |
806 | } | |
807 | } | |
808 | ||
809 | data->FifoCount = ocount; | |
810 | ||
811 | if (time_out == 0) { | |
812 | nsp_msg(KERN_DEBUG, "pio read timeout resid=%d this_residual=%d buffers_residual=%d", | |
813 | SCpnt->resid, SCpnt->SCp.this_residual, SCpnt->SCp.buffers_residual); | |
814 | } | |
815 | nsp_dbg(NSP_DEBUG_DATA_IO, "read ocount=0x%x", ocount); | |
816 | nsp_dbg(NSP_DEBUG_DATA_IO, "r cmd=%d resid=0x%x\n", data->CmdId, SCpnt->resid); | |
817 | } | |
818 | ||
819 | /* | |
820 | * write data in DATA OUT phase | |
821 | */ | |
822 | static void nsp_pio_write(Scsi_Cmnd *SCpnt) | |
823 | { | |
824 | unsigned int base = SCpnt->device->host->io_port; | |
825 | unsigned long mmio_base = SCpnt->device->host->base; | |
826 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
827 | int time_out; | |
828 | int ocount, res; | |
829 | unsigned char stat; | |
830 | ||
831 | ocount = data->FifoCount; | |
832 | ||
833 | nsp_dbg(NSP_DEBUG_DATA_IO, "in fifocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d resid=0x%x", | |
834 | data->FifoCount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual, SCpnt->resid); | |
835 | ||
836 | time_out = 1000; | |
837 | ||
838 | while ((time_out-- != 0) && | |
839 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0)) { | |
840 | stat = nsp_index_read(base, SCSIBUSMON); | |
841 | stat &= BUSMON_PHASE_MASK; | |
842 | ||
843 | if (stat != BUSPHASE_DATA_OUT) { | |
844 | res = ocount - nsp_fifo_count(SCpnt); | |
845 | ||
846 | nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x, res=%d\n", stat, res); | |
847 | /* Put back pointer */ | |
848 | SCpnt->resid += res; | |
849 | SCpnt->SCp.ptr -= res; | |
850 | SCpnt->SCp.this_residual += res; | |
851 | ocount -= res; | |
852 | ||
853 | break; | |
854 | } | |
855 | ||
856 | res = ocount - nsp_fifo_count(SCpnt); | |
857 | if (res > 0) { /* write all data? */ | |
858 | nsp_dbg(NSP_DEBUG_DATA_IO, "wait for all data out. ocount=0x%x res=%d", ocount, res); | |
859 | continue; | |
860 | } | |
861 | ||
862 | res = min(SCpnt->SCp.this_residual, WFIFO_CRIT); | |
863 | ||
864 | //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x res=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, res); | |
865 | switch (data->TransferMode) { | |
866 | case MODE_IO32: | |
867 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
868 | nsp_fifo32_write(base, SCpnt->SCp.ptr, res >> 2); | |
869 | break; | |
870 | case MODE_IO8: | |
871 | nsp_fifo8_write (base, SCpnt->SCp.ptr, res ); | |
872 | break; | |
873 | ||
874 | case MODE_MEM32: | |
875 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
876 | nsp_mmio_fifo32_write(mmio_base, SCpnt->SCp.ptr, res >> 2); | |
877 | break; | |
878 | ||
879 | default: | |
880 | nsp_dbg(NSP_DEBUG_DATA_IO, "unknown write mode"); | |
881 | break; | |
882 | } | |
883 | ||
884 | SCpnt->resid -= res; | |
885 | SCpnt->SCp.ptr += res; | |
886 | SCpnt->SCp.this_residual -= res; | |
887 | ocount += res; | |
888 | ||
889 | /* go to next scatter list if available */ | |
890 | if (SCpnt->SCp.this_residual == 0 && | |
891 | SCpnt->SCp.buffers_residual != 0 ) { | |
892 | //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next"); | |
893 | SCpnt->SCp.buffers_residual--; | |
894 | SCpnt->SCp.buffer++; | |
895 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
896 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
897 | time_out = 1000; | |
898 | } | |
899 | } | |
900 | ||
901 | data->FifoCount = ocount; | |
902 | ||
903 | if (time_out == 0) { | |
904 | nsp_msg(KERN_DEBUG, "pio write timeout resid=0x%x", SCpnt->resid); | |
905 | } | |
906 | nsp_dbg(NSP_DEBUG_DATA_IO, "write ocount=0x%x", ocount); | |
907 | nsp_dbg(NSP_DEBUG_DATA_IO, "w cmd=%d resid=0x%x\n", data->CmdId, SCpnt->resid); | |
908 | } | |
909 | #undef RFIFO_CRIT | |
910 | #undef WFIFO_CRIT | |
911 | ||
912 | /* | |
913 | * setup synchronous/asynchronous data transfer mode | |
914 | */ | |
915 | static int nsp_nexus(Scsi_Cmnd *SCpnt) | |
916 | { | |
917 | unsigned int base = SCpnt->device->host->io_port; | |
918 | unsigned char target = SCpnt->device->id; | |
919 | // unsigned char lun = SCpnt->device->lun; | |
920 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
921 | sync_data *sync = &(data->Sync[target]); | |
922 | ||
923 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p", SCpnt); | |
924 | ||
925 | /* setup synch transfer registers */ | |
926 | nsp_index_write(base, SYNCREG, sync->SyncRegister); | |
927 | nsp_index_write(base, ACKWIDTH, sync->AckWidth); | |
928 | ||
929 | if (SCpnt->use_sg == 0 || | |
930 | SCpnt->resid % 4 != 0 || | |
931 | SCpnt->resid <= PAGE_SIZE ) { | |
932 | data->TransferMode = MODE_IO8; | |
933 | } else if (nsp_burst_mode == BURST_MEM32) { | |
934 | data->TransferMode = MODE_MEM32; | |
935 | } else if (nsp_burst_mode == BURST_IO32) { | |
936 | data->TransferMode = MODE_IO32; | |
937 | } else { | |
938 | data->TransferMode = MODE_IO8; | |
939 | } | |
940 | ||
941 | /* setup pdma fifo */ | |
942 | nsp_setup_fifo(data, TRUE); | |
943 | ||
944 | /* clear ack counter */ | |
945 | data->FifoCount = 0; | |
946 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | | |
947 | ACK_COUNTER_CLEAR | | |
948 | REQ_COUNTER_CLEAR | | |
949 | HOST_COUNTER_CLEAR); | |
950 | ||
951 | return 0; | |
952 | } | |
953 | ||
954 | #include "nsp_message.c" | |
955 | /* | |
956 | * interrupt handler | |
957 | */ | |
958 | static irqreturn_t nspintr(int irq, void *dev_id, struct pt_regs *regs) | |
959 | { | |
960 | unsigned int base; | |
961 | unsigned char irq_status, irq_phase, phase; | |
962 | Scsi_Cmnd *tmpSC; | |
963 | unsigned char target, lun; | |
964 | unsigned int *sync_neg; | |
965 | int i, tmp; | |
966 | nsp_hw_data *data; | |
967 | ||
968 | ||
969 | //nsp_dbg(NSP_DEBUG_INTR, "dev_id=0x%p", dev_id); | |
970 | //nsp_dbg(NSP_DEBUG_INTR, "host=0x%p", ((scsi_info_t *)dev_id)->host); | |
971 | ||
972 | if ( dev_id != NULL && | |
973 | ((scsi_info_t *)dev_id)->host != NULL ) { | |
974 | scsi_info_t *info = (scsi_info_t *)dev_id; | |
975 | ||
976 | data = (nsp_hw_data *)info->host->hostdata; | |
977 | } else { | |
978 | nsp_dbg(NSP_DEBUG_INTR, "host data wrong"); | |
979 | return IRQ_NONE; | |
980 | } | |
981 | ||
982 | //nsp_dbg(NSP_DEBUG_INTR, "&nsp_data_base=0x%p, dev_id=0x%p", &nsp_data_base, dev_id); | |
983 | ||
984 | base = data->BaseAddress; | |
985 | //nsp_dbg(NSP_DEBUG_INTR, "base=0x%x", base); | |
986 | ||
987 | /* | |
988 | * interrupt check | |
989 | */ | |
990 | nsp_write(base, IRQCONTROL, IRQCONTROL_IRQDISABLE); | |
991 | irq_status = nsp_read(base, IRQSTATUS); | |
992 | //nsp_dbg(NSP_DEBUG_INTR, "irq_status=0x%x", irq_status); | |
993 | if ((irq_status == 0xff) || ((irq_status & IRQSTATUS_MASK) == 0)) { | |
994 | nsp_write(base, IRQCONTROL, 0); | |
995 | //nsp_dbg(NSP_DEBUG_INTR, "no irq/shared irq"); | |
996 | return IRQ_NONE; | |
997 | } | |
998 | ||
999 | /* XXX: IMPORTANT | |
1000 | * Do not read an irq_phase register if no scsi phase interrupt. | |
1001 | * Unless, you should lose a scsi phase interrupt. | |
1002 | */ | |
1003 | phase = nsp_index_read(base, SCSIBUSMON); | |
1004 | if((irq_status & IRQSTATUS_SCSI) != 0) { | |
1005 | irq_phase = nsp_index_read(base, IRQPHASESENCE); | |
1006 | } else { | |
1007 | irq_phase = 0; | |
1008 | } | |
1009 | ||
1010 | //nsp_dbg(NSP_DEBUG_INTR, "irq_phase=0x%x", irq_phase); | |
1011 | ||
1012 | /* | |
1013 | * timer interrupt handler (scsi vs timer interrupts) | |
1014 | */ | |
1015 | //nsp_dbg(NSP_DEBUG_INTR, "timercount=%d", data->TimerCount); | |
1016 | if (data->TimerCount != 0) { | |
1017 | //nsp_dbg(NSP_DEBUG_INTR, "stop timer"); | |
1018 | nsp_index_write(base, TIMERCOUNT, 0); | |
1019 | nsp_index_write(base, TIMERCOUNT, 0); | |
1020 | data->TimerCount = 0; | |
1021 | } | |
1022 | ||
1023 | if ((irq_status & IRQSTATUS_MASK) == IRQSTATUS_TIMER && | |
1024 | data->SelectionTimeOut == 0) { | |
1025 | //nsp_dbg(NSP_DEBUG_INTR, "timer start"); | |
1026 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR); | |
1027 | return IRQ_HANDLED; | |
1028 | } | |
1029 | ||
1030 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR | IRQCONTROL_FIFO_CLEAR); | |
1031 | ||
1032 | if ((irq_status & IRQSTATUS_SCSI) && | |
1033 | (irq_phase & SCSI_RESET_IRQ)) { | |
1034 | nsp_msg(KERN_ERR, "bus reset (power off?)"); | |
1035 | ||
1036 | nsphw_init(data); | |
1037 | nsp_bus_reset(data); | |
1038 | ||
1039 | if(data->CurrentSC != NULL) { | |
1040 | tmpSC = data->CurrentSC; | |
1041 | tmpSC->result = (DID_RESET << 16) | | |
1042 | ((tmpSC->SCp.Message & 0xff) << 8) | | |
1043 | ((tmpSC->SCp.Status & 0xff) << 0); | |
1044 | nsp_scsi_done(tmpSC); | |
1045 | } | |
1046 | return IRQ_HANDLED; | |
1047 | } | |
1048 | ||
1049 | if (data->CurrentSC == NULL) { | |
1050 | 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); | |
1051 | nsphw_init(data); | |
1052 | nsp_bus_reset(data); | |
1053 | return IRQ_HANDLED; | |
1054 | } | |
1055 | ||
1056 | tmpSC = data->CurrentSC; | |
1057 | target = tmpSC->device->id; | |
1058 | lun = tmpSC->device->lun; | |
1059 | sync_neg = &(data->Sync[target].SyncNegotiation); | |
1060 | ||
1061 | /* | |
1062 | * parse hardware SCSI irq reasons register | |
1063 | */ | |
1064 | if (irq_status & IRQSTATUS_SCSI) { | |
1065 | if (irq_phase & RESELECT_IRQ) { | |
1066 | nsp_dbg(NSP_DEBUG_INTR, "reselect"); | |
1067 | nsp_write(base, IRQCONTROL, IRQCONTROL_RESELECT_CLEAR); | |
1068 | if (nsp_reselected(tmpSC) != FALSE) { | |
1069 | return IRQ_HANDLED; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | if ((irq_phase & (PHASE_CHANGE_IRQ | LATCHED_BUS_FREE)) == 0) { | |
1074 | return IRQ_HANDLED; | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | //show_phase(tmpSC); | |
1079 | ||
1080 | switch(tmpSC->SCp.phase) { | |
1081 | case PH_SELSTART: | |
1082 | // *sync_neg = SYNC_NOT_YET; | |
1083 | if ((phase & BUSMON_BSY) == 0) { | |
1084 | //nsp_dbg(NSP_DEBUG_INTR, "selection count=%d", data->SelectionTimeOut); | |
1085 | if (data->SelectionTimeOut >= NSP_SELTIMEOUT) { | |
1086 | nsp_dbg(NSP_DEBUG_INTR, "selection time out"); | |
1087 | data->SelectionTimeOut = 0; | |
1088 | nsp_index_write(base, SCSIBUSCTRL, 0); | |
1089 | ||
1090 | tmpSC->result = DID_TIME_OUT << 16; | |
1091 | nsp_scsi_done(tmpSC); | |
1092 | ||
1093 | return IRQ_HANDLED; | |
1094 | } | |
1095 | data->SelectionTimeOut += 1; | |
1096 | nsp_start_timer(tmpSC, 1000/51); | |
1097 | return IRQ_HANDLED; | |
1098 | } | |
1099 | ||
1100 | /* attention assert */ | |
1101 | //nsp_dbg(NSP_DEBUG_INTR, "attention assert"); | |
1102 | data->SelectionTimeOut = 0; | |
1103 | tmpSC->SCp.phase = PH_SELECTED; | |
1104 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN); | |
1105 | udelay(1); | |
1106 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN | AUTODIRECTION | ACKENB); | |
1107 | return IRQ_HANDLED; | |
1108 | ||
1109 | break; | |
1110 | ||
1111 | case PH_RESELECT: | |
1112 | //nsp_dbg(NSP_DEBUG_INTR, "phase reselect"); | |
1113 | // *sync_neg = SYNC_NOT_YET; | |
1114 | if ((phase & BUSMON_PHASE_MASK) != BUSPHASE_MESSAGE_IN) { | |
1115 | ||
1116 | tmpSC->result = DID_ABORT << 16; | |
1117 | nsp_scsi_done(tmpSC); | |
1118 | return IRQ_HANDLED; | |
1119 | } | |
1120 | /* fall thru */ | |
1121 | default: | |
1122 | if ((irq_status & (IRQSTATUS_SCSI | IRQSTATUS_FIFO)) == 0) { | |
1123 | return IRQ_HANDLED; | |
1124 | } | |
1125 | break; | |
1126 | } | |
1127 | ||
1128 | /* | |
1129 | * SCSI sequencer | |
1130 | */ | |
1131 | //nsp_dbg(NSP_DEBUG_INTR, "start scsi seq"); | |
1132 | ||
1133 | /* normal disconnect */ | |
1134 | if (((tmpSC->SCp.phase == PH_MSG_IN) || (tmpSC->SCp.phase == PH_MSG_OUT)) && | |
1135 | (irq_phase & LATCHED_BUS_FREE) != 0 ) { | |
1136 | nsp_dbg(NSP_DEBUG_INTR, "normal disconnect irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase); | |
1137 | ||
1138 | //*sync_neg = SYNC_NOT_YET; | |
1139 | ||
1140 | if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { /* all command complete and return status */ | |
1141 | tmpSC->result = (DID_OK << 16) | | |
1142 | ((tmpSC->SCp.Message & 0xff) << 8) | | |
1143 | ((tmpSC->SCp.Status & 0xff) << 0); | |
1144 | nsp_dbg(NSP_DEBUG_INTR, "command complete result=0x%x", tmpSC->result); | |
1145 | nsp_scsi_done(tmpSC); | |
1146 | ||
1147 | return IRQ_HANDLED; | |
1148 | } | |
1149 | ||
1150 | return IRQ_HANDLED; | |
1151 | } | |
1152 | ||
1153 | ||
1154 | /* check unexpected bus free state */ | |
1155 | if (phase == 0) { | |
1156 | nsp_msg(KERN_DEBUG, "unexpected bus free. irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase); | |
1157 | ||
1158 | *sync_neg = SYNC_NG; | |
1159 | tmpSC->result = DID_ERROR << 16; | |
1160 | nsp_scsi_done(tmpSC); | |
1161 | return IRQ_HANDLED; | |
1162 | } | |
1163 | ||
1164 | switch (phase & BUSMON_PHASE_MASK) { | |
1165 | case BUSPHASE_COMMAND: | |
1166 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_COMMAND"); | |
1167 | if ((phase & BUSMON_REQ) == 0) { | |
1168 | nsp_dbg(NSP_DEBUG_INTR, "REQ == 0"); | |
1169 | return IRQ_HANDLED; | |
1170 | } | |
1171 | ||
1172 | tmpSC->SCp.phase = PH_COMMAND; | |
1173 | ||
1174 | nsp_nexus(tmpSC); | |
1175 | ||
1176 | /* write scsi command */ | |
1177 | nsp_dbg(NSP_DEBUG_INTR, "cmd_len=%d", tmpSC->cmd_len); | |
1178 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER); | |
1179 | for (i = 0; i < tmpSC->cmd_len; i++) { | |
1180 | nsp_index_write(base, COMMANDDATA, tmpSC->cmnd[i]); | |
1181 | } | |
1182 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER | AUTO_COMMAND_GO); | |
1183 | break; | |
1184 | ||
1185 | case BUSPHASE_DATA_OUT: | |
1186 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_OUT"); | |
1187 | ||
1188 | tmpSC->SCp.phase = PH_DATA; | |
1189 | tmpSC->SCp.have_data_in = IO_OUT; | |
1190 | ||
1191 | nsp_pio_write(tmpSC); | |
1192 | ||
1193 | break; | |
1194 | ||
1195 | case BUSPHASE_DATA_IN: | |
1196 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_IN"); | |
1197 | ||
1198 | tmpSC->SCp.phase = PH_DATA; | |
1199 | tmpSC->SCp.have_data_in = IO_IN; | |
1200 | ||
1201 | nsp_pio_read(tmpSC); | |
1202 | ||
1203 | break; | |
1204 | ||
1205 | case BUSPHASE_STATUS: | |
1206 | nsp_dataphase_bypass(tmpSC); | |
1207 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_STATUS"); | |
1208 | ||
1209 | tmpSC->SCp.phase = PH_STATUS; | |
1210 | ||
1211 | tmpSC->SCp.Status = nsp_index_read(base, SCSIDATAWITHACK); | |
1212 | nsp_dbg(NSP_DEBUG_INTR, "message=0x%x status=0x%x", tmpSC->SCp.Message, tmpSC->SCp.Status); | |
1213 | ||
1214 | break; | |
1215 | ||
1216 | case BUSPHASE_MESSAGE_OUT: | |
1217 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_OUT"); | |
1218 | if ((phase & BUSMON_REQ) == 0) { | |
1219 | goto timer_out; | |
1220 | } | |
1221 | ||
1222 | tmpSC->SCp.phase = PH_MSG_OUT; | |
1223 | ||
1224 | //*sync_neg = SYNC_NOT_YET; | |
1225 | ||
1226 | data->MsgLen = i = 0; | |
1227 | data->MsgBuffer[i] = IDENTIFY(TRUE, lun); i++; | |
1228 | ||
1229 | if (*sync_neg == SYNC_NOT_YET) { | |
1230 | data->Sync[target].SyncPeriod = 0; | |
1231 | data->Sync[target].SyncOffset = 0; | |
1232 | ||
1233 | /**/ | |
1234 | data->MsgBuffer[i] = MSG_EXTENDED; i++; | |
1235 | data->MsgBuffer[i] = 3; i++; | |
1236 | data->MsgBuffer[i] = MSG_EXT_SDTR; i++; | |
1237 | data->MsgBuffer[i] = 0x0c; i++; | |
1238 | data->MsgBuffer[i] = 15; i++; | |
1239 | /**/ | |
1240 | } | |
1241 | data->MsgLen = i; | |
1242 | ||
1243 | nsp_analyze_sdtr(tmpSC); | |
1244 | show_message(data); | |
1245 | nsp_message_out(tmpSC); | |
1246 | break; | |
1247 | ||
1248 | case BUSPHASE_MESSAGE_IN: | |
1249 | nsp_dataphase_bypass(tmpSC); | |
1250 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_IN"); | |
1251 | if ((phase & BUSMON_REQ) == 0) { | |
1252 | goto timer_out; | |
1253 | } | |
1254 | ||
1255 | tmpSC->SCp.phase = PH_MSG_IN; | |
1256 | nsp_message_in(tmpSC); | |
1257 | ||
1258 | /**/ | |
1259 | if (*sync_neg == SYNC_NOT_YET) { | |
1260 | //nsp_dbg(NSP_DEBUG_INTR, "sync target=%d,lun=%d",target,lun); | |
1261 | ||
1262 | if (data->MsgLen >= 5 && | |
1263 | data->MsgBuffer[0] == MSG_EXTENDED && | |
1264 | data->MsgBuffer[1] == 3 && | |
1265 | data->MsgBuffer[2] == MSG_EXT_SDTR ) { | |
1266 | data->Sync[target].SyncPeriod = data->MsgBuffer[3]; | |
1267 | data->Sync[target].SyncOffset = data->MsgBuffer[4]; | |
1268 | //nsp_dbg(NSP_DEBUG_INTR, "sync ok, %d %d", data->MsgBuffer[3], data->MsgBuffer[4]); | |
1269 | *sync_neg = SYNC_OK; | |
1270 | } else { | |
1271 | data->Sync[target].SyncPeriod = 0; | |
1272 | data->Sync[target].SyncOffset = 0; | |
1273 | *sync_neg = SYNC_NG; | |
1274 | } | |
1275 | nsp_analyze_sdtr(tmpSC); | |
1276 | } | |
1277 | /**/ | |
1278 | ||
1279 | /* search last messeage byte */ | |
1280 | tmp = -1; | |
1281 | for (i = 0; i < data->MsgLen; i++) { | |
1282 | tmp = data->MsgBuffer[i]; | |
1283 | if (data->MsgBuffer[i] == MSG_EXTENDED) { | |
1284 | i += (1 + data->MsgBuffer[i+1]); | |
1285 | } | |
1286 | } | |
1287 | tmpSC->SCp.Message = tmp; | |
1288 | ||
1289 | nsp_dbg(NSP_DEBUG_INTR, "message=0x%x len=%d", tmpSC->SCp.Message, data->MsgLen); | |
1290 | show_message(data); | |
1291 | ||
1292 | break; | |
1293 | ||
1294 | case BUSPHASE_SELECT: | |
1295 | default: | |
1296 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE other"); | |
1297 | ||
1298 | break; | |
1299 | } | |
1300 | ||
1301 | //nsp_dbg(NSP_DEBUG_INTR, "out"); | |
1302 | return IRQ_HANDLED; | |
1303 | ||
1304 | timer_out: | |
1305 | nsp_start_timer(tmpSC, 1000/102); | |
1306 | return IRQ_HANDLED; | |
1307 | } | |
1308 | ||
1309 | #ifdef NSP_DEBUG | |
1310 | #include "nsp_debug.c" | |
1311 | #endif /* NSP_DEBUG */ | |
1312 | ||
1313 | /*----------------------------------------------------------------*/ | |
1314 | /* look for ninja3 card and init if found */ | |
1315 | /*----------------------------------------------------------------*/ | |
1316 | static struct Scsi_Host *nsp_detect(Scsi_Host_Template *sht) | |
1317 | { | |
1318 | struct Scsi_Host *host; /* registered host structure */ | |
1319 | nsp_hw_data *data_b = &nsp_data_base, *data; | |
1320 | ||
1321 | nsp_dbg(NSP_DEBUG_INIT, "this_id=%d", sht->this_id); | |
1322 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | |
1323 | host = scsi_host_alloc(&nsp_driver_template, sizeof(nsp_hw_data)); | |
1324 | #else | |
1325 | host = scsi_register(sht, sizeof(nsp_hw_data)); | |
1326 | #endif | |
1327 | if (host == NULL) { | |
1328 | nsp_dbg(NSP_DEBUG_INIT, "host failed"); | |
1329 | return NULL; | |
1330 | } | |
1331 | ||
1332 | memcpy(host->hostdata, data_b, sizeof(nsp_hw_data)); | |
1333 | data = (nsp_hw_data *)host->hostdata; | |
1334 | data->ScsiInfo->host = host; | |
1335 | #ifdef NSP_DEBUG | |
1336 | data->CmdId = 0; | |
1337 | #endif | |
1338 | ||
1339 | nsp_dbg(NSP_DEBUG_INIT, "irq=%d,%d", data_b->IrqNumber, ((nsp_hw_data *)host->hostdata)->IrqNumber); | |
1340 | ||
1341 | host->unique_id = data->BaseAddress; | |
1342 | host->io_port = data->BaseAddress; | |
1343 | host->n_io_port = data->NumAddress; | |
1344 | host->irq = data->IrqNumber; | |
1345 | host->base = data->MmioAddress; | |
1346 | ||
1347 | spin_lock_init(&(data->Lock)); | |
1348 | ||
1349 | snprintf(data->nspinfo, | |
1350 | sizeof(data->nspinfo), | |
1351 | "NinjaSCSI-3/32Bi Driver $Revision: 1.23 $ IO:0x%04lx-0x%04lx MMIO(virt addr):0x%04lx IRQ:%02d", | |
1352 | host->io_port, host->io_port + host->n_io_port - 1, | |
1353 | host->base, | |
1354 | host->irq); | |
1355 | sht->name = data->nspinfo; | |
1356 | ||
1357 | nsp_dbg(NSP_DEBUG_INIT, "end"); | |
1358 | ||
1359 | ||
1360 | return host; /* detect done. */ | |
1361 | } | |
1362 | ||
1363 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) | |
1364 | static int nsp_detect_old(Scsi_Host_Template *sht) | |
1365 | { | |
1366 | if (nsp_detect(sht) == NULL) { | |
1367 | return 0; | |
1368 | } else { | |
1369 | //MOD_INC_USE_COUNT; | |
1370 | return 1; | |
1371 | } | |
1372 | } | |
1373 | ||
1374 | ||
1375 | static int nsp_release_old(struct Scsi_Host *shpnt) | |
1376 | { | |
1377 | //nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata; | |
1378 | ||
1379 | /* PCMCIA Card Service dose same things below. */ | |
1380 | /* So we do nothing. */ | |
1381 | //if (shpnt->irq) { | |
1382 | // free_irq(shpnt->irq, data->ScsiInfo); | |
1383 | //} | |
1384 | //if (shpnt->io_port) { | |
1385 | // release_region(shpnt->io_port, shpnt->n_io_port); | |
1386 | //} | |
1387 | ||
1388 | //MOD_DEC_USE_COUNT; | |
1389 | ||
1390 | return 0; | |
1391 | } | |
1392 | #endif | |
1393 | ||
1394 | /*----------------------------------------------------------------*/ | |
1395 | /* return info string */ | |
1396 | /*----------------------------------------------------------------*/ | |
1397 | static const char *nsp_info(struct Scsi_Host *shpnt) | |
1398 | { | |
1399 | nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata; | |
1400 | ||
1401 | return data->nspinfo; | |
1402 | } | |
1403 | ||
1404 | #undef SPRINTF | |
1405 | #define SPRINTF(args...) \ | |
1406 | do { \ | |
1407 | if(length > (pos - buffer)) { \ | |
1408 | pos += snprintf(pos, length - (pos - buffer) + 1, ## args); \ | |
1409 | nsp_dbg(NSP_DEBUG_PROC, "buffer=0x%p pos=0x%p length=%d %d\n", buffer, pos, length, length - (pos - buffer));\ | |
1410 | } \ | |
1411 | } while(0) | |
1412 | static int | |
1413 | nsp_proc_info( | |
1414 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | |
1415 | struct Scsi_Host *host, | |
1416 | #endif | |
1417 | char *buffer, | |
1418 | char **start, | |
1419 | off_t offset, | |
1420 | int length, | |
1421 | #if !(LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | |
1422 | int hostno, | |
1423 | #endif | |
1424 | int inout) | |
1425 | { | |
1426 | int id; | |
1427 | char *pos = buffer; | |
1428 | int thislength; | |
1429 | int speed; | |
1430 | unsigned long flags; | |
1431 | nsp_hw_data *data; | |
1432 | #if !(LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | |
1433 | struct Scsi_Host *host; | |
1434 | #else | |
1435 | int hostno; | |
1436 | #endif | |
1437 | if (inout) { | |
1438 | return -EINVAL; | |
1439 | } | |
1440 | ||
1441 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) | |
1442 | hostno = host->host_no; | |
1443 | #else | |
1444 | /* search this HBA host */ | |
1445 | host = scsi_host_hn_get(hostno); | |
1446 | if (host == NULL) { | |
1447 | return -ESRCH; | |
1448 | } | |
1449 | #endif | |
1450 | data = (nsp_hw_data *)host->hostdata; | |
1451 | ||
1452 | ||
1453 | SPRINTF("NinjaSCSI status\n\n"); | |
1454 | SPRINTF("Driver version: $Revision: 1.23 $\n"); | |
1455 | SPRINTF("SCSI host No.: %d\n", hostno); | |
1456 | SPRINTF("IRQ: %d\n", host->irq); | |
1457 | SPRINTF("IO: 0x%lx-0x%lx\n", host->io_port, host->io_port + host->n_io_port - 1); | |
1458 | SPRINTF("MMIO(virtual address): 0x%lx-0x%lx\n", host->base, host->base + data->MmioLength - 1); | |
1459 | SPRINTF("sg_tablesize: %d\n", host->sg_tablesize); | |
1460 | ||
1461 | SPRINTF("burst transfer mode: "); | |
1462 | switch (nsp_burst_mode) { | |
1463 | case BURST_IO8: | |
1464 | SPRINTF("io8"); | |
1465 | break; | |
1466 | case BURST_IO32: | |
1467 | SPRINTF("io32"); | |
1468 | break; | |
1469 | case BURST_MEM32: | |
1470 | SPRINTF("mem32"); | |
1471 | break; | |
1472 | default: | |
1473 | SPRINTF("???"); | |
1474 | break; | |
1475 | } | |
1476 | SPRINTF("\n"); | |
1477 | ||
1478 | ||
1479 | spin_lock_irqsave(&(data->Lock), flags); | |
1480 | SPRINTF("CurrentSC: 0x%p\n\n", data->CurrentSC); | |
1481 | spin_unlock_irqrestore(&(data->Lock), flags); | |
1482 | ||
1483 | SPRINTF("SDTR status\n"); | |
1484 | for(id = 0; id < ARRAY_SIZE(data->Sync); id++) { | |
1485 | ||
1486 | SPRINTF("id %d: ", id); | |
1487 | ||
1488 | if (id == host->this_id) { | |
1489 | SPRINTF("----- NinjaSCSI-3 host adapter\n"); | |
1490 | continue; | |
1491 | } | |
1492 | ||
1493 | switch(data->Sync[id].SyncNegotiation) { | |
1494 | case SYNC_OK: | |
1495 | SPRINTF(" sync"); | |
1496 | break; | |
1497 | case SYNC_NG: | |
1498 | SPRINTF("async"); | |
1499 | break; | |
1500 | case SYNC_NOT_YET: | |
1501 | SPRINTF(" none"); | |
1502 | break; | |
1503 | default: | |
1504 | SPRINTF("?????"); | |
1505 | break; | |
1506 | } | |
1507 | ||
1508 | if (data->Sync[id].SyncPeriod != 0) { | |
1509 | speed = 1000000 / (data->Sync[id].SyncPeriod * 4); | |
1510 | ||
1511 | SPRINTF(" transfer %d.%dMB/s, offset %d", | |
1512 | speed / 1000, | |
1513 | speed % 1000, | |
1514 | data->Sync[id].SyncOffset | |
1515 | ); | |
1516 | } | |
1517 | SPRINTF("\n"); | |
1518 | } | |
1519 | ||
1520 | thislength = pos - (buffer + offset); | |
1521 | ||
1522 | if(thislength < 0) { | |
1523 | *start = NULL; | |
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | ||
1528 | thislength = min(thislength, length); | |
1529 | *start = buffer + offset; | |
1530 | ||
1531 | return thislength; | |
1532 | } | |
1533 | #undef SPRINTF | |
1534 | ||
1535 | /*---------------------------------------------------------------*/ | |
1536 | /* error handler */ | |
1537 | /*---------------------------------------------------------------*/ | |
1538 | ||
1539 | /*static int nsp_eh_strategy(struct Scsi_Host *Shost) | |
1540 | { | |
1541 | return FAILED; | |
1542 | }*/ | |
1543 | ||
1544 | /* | |
1545 | static int nsp_eh_abort(Scsi_Cmnd *SCpnt) | |
1546 | { | |
1547 | nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p", SCpnt); | |
1548 | ||
1549 | return nsp_eh_bus_reset(SCpnt); | |
1550 | }*/ | |
1551 | ||
1552 | /* | |
1553 | static int nsp_eh_device_reset(Scsi_Cmnd *SCpnt) | |
1554 | { | |
1555 | nsp_dbg(NSP_DEBUG_BUSRESET, "%s: SCpnt=0x%p", SCpnt); | |
1556 | ||
1557 | return FAILED; | |
1558 | }*/ | |
1559 | ||
1560 | static int nsp_bus_reset(nsp_hw_data *data) | |
1561 | { | |
1562 | unsigned int base = data->BaseAddress; | |
1563 | int i; | |
1564 | ||
1565 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); | |
1566 | ||
1567 | nsp_index_write(base, SCSIBUSCTRL, SCSI_RST); | |
1568 | mdelay(100); /* 100ms */ | |
1569 | nsp_index_write(base, SCSIBUSCTRL, 0); | |
1570 | for(i = 0; i < 5; i++) { | |
1571 | nsp_index_read(base, IRQPHASESENCE); /* dummy read */ | |
1572 | } | |
1573 | ||
1574 | nsphw_init_sync(data); | |
1575 | ||
1576 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); | |
1577 | ||
1578 | return SUCCESS; | |
1579 | } | |
1580 | ||
1581 | static int nsp_eh_bus_reset(Scsi_Cmnd *SCpnt) | |
1582 | { | |
1583 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
1584 | ||
1585 | nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p", SCpnt); | |
1586 | ||
1587 | return nsp_bus_reset(data); | |
1588 | } | |
1589 | ||
1590 | static int nsp_eh_host_reset(Scsi_Cmnd *SCpnt) | |
1591 | { | |
1592 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; | |
1593 | ||
1594 | nsp_dbg(NSP_DEBUG_BUSRESET, "in"); | |
1595 | ||
1596 | nsphw_init(data); | |
1597 | ||
1598 | return SUCCESS; | |
1599 | } | |
1600 | ||
1601 | ||
1602 | /********************************************************************** | |
1603 | PCMCIA functions | |
1604 | **********************************************************************/ | |
1605 | ||
1606 | /*====================================================================== | |
1607 | nsp_cs_attach() creates an "instance" of the driver, allocating | |
1608 | local data structures for one device. The device is registered | |
1609 | with Card Services. | |
1610 | ||
1611 | The dev_link structure is initialized, but we don't actually | |
1612 | configure the card at this point -- we wait until we receive a | |
1613 | card insertion event. | |
1614 | ======================================================================*/ | |
1615 | static dev_link_t *nsp_cs_attach(void) | |
1616 | { | |
1617 | scsi_info_t *info; | |
1618 | client_reg_t client_reg; | |
1619 | dev_link_t *link; | |
1620 | int ret; | |
1621 | nsp_hw_data *data = &nsp_data_base; | |
1622 | ||
1623 | nsp_dbg(NSP_DEBUG_INIT, "in"); | |
1624 | ||
1625 | /* Create new SCSI device */ | |
1626 | info = kmalloc(sizeof(*info), GFP_KERNEL); | |
1627 | if (info == NULL) { return NULL; } | |
1628 | memset(info, 0, sizeof(*info)); | |
1629 | link = &info->link; | |
1630 | link->priv = info; | |
1631 | data->ScsiInfo = info; | |
1632 | ||
1633 | nsp_dbg(NSP_DEBUG_INIT, "info=0x%p", info); | |
1634 | ||
1635 | /* The io structure describes IO port mapping */ | |
1636 | link->io.NumPorts1 = 0x10; | |
1637 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
1638 | link->io.IOAddrLines = 10; /* not used */ | |
1639 | ||
1640 | /* Interrupt setup */ | |
1641 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
1642 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
1643 | ||
1644 | /* Interrupt handler */ | |
1645 | link->irq.Handler = &nspintr; | |
1646 | link->irq.Instance = info; | |
1647 | link->irq.Attributes |= (SA_SHIRQ | SA_SAMPLE_RANDOM); | |
1648 | ||
1649 | /* General socket configuration */ | |
1650 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1651 | link->conf.Vcc = 50; | |
1652 | link->conf.IntType = INT_MEMORY_AND_IO; | |
1653 | link->conf.Present = PRESENT_OPTION; | |
1654 | ||
1655 | ||
1656 | /* Register with Card Services */ | |
1657 | link->next = dev_list; | |
1658 | dev_list = link; | |
1659 | client_reg.dev_info = &dev_info; | |
1660 | client_reg.EventMask = | |
1661 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | | |
1662 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | | |
1663 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME ; | |
1664 | client_reg.event_handler = &nsp_cs_event; | |
1665 | client_reg.Version = 0x0210; | |
1666 | client_reg.event_callback_args.client_data = link; | |
1667 | ret = pcmcia_register_client(&link->handle, &client_reg); | |
1668 | if (ret != CS_SUCCESS) { | |
1669 | cs_error(link->handle, RegisterClient, ret); | |
1670 | nsp_cs_detach(link); | |
1671 | return NULL; | |
1672 | } | |
1673 | ||
1674 | ||
1675 | nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link); | |
1676 | return link; | |
1677 | } /* nsp_cs_attach */ | |
1678 | ||
1679 | ||
1680 | /*====================================================================== | |
1681 | This deletes a driver "instance". The device is de-registered | |
1682 | with Card Services. If it has been released, all local data | |
1683 | structures are freed. Otherwise, the structures will be freed | |
1684 | when the device is released. | |
1685 | ======================================================================*/ | |
1686 | static void nsp_cs_detach(dev_link_t *link) | |
1687 | { | |
1688 | dev_link_t **linkp; | |
1689 | ||
1690 | nsp_dbg(NSP_DEBUG_INIT, "in, link=0x%p", link); | |
1691 | ||
1692 | /* Locate device structure */ | |
1693 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) { | |
1694 | if (*linkp == link) { | |
1695 | break; | |
1696 | } | |
1697 | } | |
1698 | if (*linkp == NULL) { | |
1699 | return; | |
1700 | } | |
1701 | ||
1702 | if (link->state & DEV_CONFIG) | |
1703 | nsp_cs_release(link); | |
1704 | ||
1705 | /* Break the link with Card Services */ | |
1706 | if (link->handle) { | |
1707 | pcmcia_deregister_client(link->handle); | |
1708 | } | |
1709 | ||
1710 | /* Unlink device structure, free bits */ | |
1711 | *linkp = link->next; | |
1712 | kfree(link->priv); | |
1713 | link->priv = NULL; | |
1714 | ||
1715 | } /* nsp_cs_detach */ | |
1716 | ||
1717 | ||
1718 | /*====================================================================== | |
1719 | nsp_cs_config() is scheduled to run after a CARD_INSERTION event | |
1720 | is received, to configure the PCMCIA socket, and to make the | |
1721 | ethernet device available to the system. | |
1722 | ======================================================================*/ | |
1723 | #define CS_CHECK(fn, ret) \ | |
1724 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) | |
1725 | /*====================================================================*/ | |
1726 | static void nsp_cs_config(dev_link_t *link) | |
1727 | { | |
1728 | client_handle_t handle = link->handle; | |
1729 | scsi_info_t *info = link->priv; | |
1730 | tuple_t tuple; | |
1731 | cisparse_t parse; | |
1732 | int last_ret, last_fn; | |
1733 | unsigned char tuple_data[64]; | |
1734 | config_info_t conf; | |
1735 | win_req_t req; | |
1736 | memreq_t map; | |
1737 | cistpl_cftable_entry_t dflt = { 0 }; | |
1738 | struct Scsi_Host *host; | |
1739 | nsp_hw_data *data = &nsp_data_base; | |
1740 | #if !(LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74)) | |
1741 | Scsi_Device *dev; | |
1742 | dev_node_t **tail, *node; | |
1743 | #endif | |
1744 | ||
1745 | nsp_dbg(NSP_DEBUG_INIT, "in"); | |
1746 | ||
1747 | tuple.DesiredTuple = CISTPL_CONFIG; | |
1748 | tuple.Attributes = 0; | |
1749 | tuple.TupleData = tuple_data; | |
1750 | tuple.TupleDataMax = sizeof(tuple_data); | |
1751 | tuple.TupleOffset = 0; | |
1752 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
1753 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); | |
1754 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); | |
1755 | link->conf.ConfigBase = parse.config.base; | |
1756 | link->conf.Present = parse.config.rmask[0]; | |
1757 | ||
1758 | /* Configure card */ | |
1759 | link->state |= DEV_CONFIG; | |
1760 | ||
1761 | /* Look up the current Vcc */ | |
1762 | CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); | |
1763 | link->conf.Vcc = conf.Vcc; | |
1764 | ||
1765 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
1766 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
1767 | while (1) { | |
1768 | cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); | |
1769 | ||
1770 | if (pcmcia_get_tuple_data(handle, &tuple) != 0 || | |
1771 | pcmcia_parse_tuple(handle, &tuple, &parse) != 0) | |
1772 | goto next_entry; | |
1773 | ||
1774 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) { dflt = *cfg; } | |
1775 | if (cfg->index == 0) { goto next_entry; } | |
1776 | link->conf.ConfigIndex = cfg->index; | |
1777 | ||
1778 | /* Does this card need audio output? */ | |
1779 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { | |
1780 | link->conf.Attributes |= CONF_ENABLE_SPKR; | |
1781 | link->conf.Status = CCSR_AUDIO_ENA; | |
1782 | } | |
1783 | ||
1784 | /* Use power settings for Vcc and Vpp if present */ | |
1785 | /* Note that the CIS values need to be rescaled */ | |
1786 | if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) { | |
1787 | if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000) { | |
1788 | goto next_entry; | |
1789 | } | |
1790 | } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) { | |
1791 | if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000) { | |
1792 | goto next_entry; | |
1793 | } | |
1794 | } | |
1795 | ||
1796 | if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) { | |
1797 | link->conf.Vpp1 = link->conf.Vpp2 = | |
1798 | cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; | |
1799 | } else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) { | |
1800 | link->conf.Vpp1 = link->conf.Vpp2 = | |
1801 | dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000; | |
1802 | } | |
1803 | ||
1804 | /* Do we need to allocate an interrupt? */ | |
1805 | if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) { | |
1806 | link->conf.Attributes |= CONF_ENABLE_IRQ; | |
1807 | } | |
1808 | ||
1809 | /* IO window settings */ | |
1810 | link->io.NumPorts1 = link->io.NumPorts2 = 0; | |
1811 | if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { | |
1812 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; | |
1813 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
1814 | if (!(io->flags & CISTPL_IO_8BIT)) | |
1815 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; | |
1816 | if (!(io->flags & CISTPL_IO_16BIT)) | |
1817 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
1818 | link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; | |
1819 | link->io.BasePort1 = io->win[0].base; | |
1820 | link->io.NumPorts1 = io->win[0].len; | |
1821 | if (io->nwin > 1) { | |
1822 | link->io.Attributes2 = link->io.Attributes1; | |
1823 | link->io.BasePort2 = io->win[1].base; | |
1824 | link->io.NumPorts2 = io->win[1].len; | |
1825 | } | |
1826 | /* This reserves IO space but doesn't actually enable it */ | |
1827 | if (pcmcia_request_io(link->handle, &link->io) != 0) | |
1828 | goto next_entry; | |
1829 | } | |
1830 | ||
1831 | if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) { | |
1832 | cistpl_mem_t *mem = | |
1833 | (cfg->mem.nwin) ? &cfg->mem : &dflt.mem; | |
1834 | req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM; | |
1835 | req.Attributes |= WIN_ENABLE; | |
1836 | req.Base = mem->win[0].host_addr; | |
1837 | req.Size = mem->win[0].len; | |
1838 | if (req.Size < 0x1000) { | |
1839 | req.Size = 0x1000; | |
1840 | } | |
1841 | req.AccessSpeed = 0; | |
1842 | if (pcmcia_request_window(&link->handle, &req, &link->win) != 0) | |
1843 | goto next_entry; | |
1844 | map.Page = 0; map.CardOffset = mem->win[0].card_addr; | |
1845 | if (pcmcia_map_mem_page(link->win, &map) != 0) | |
1846 | goto next_entry; | |
1847 | ||
1848 | data->MmioAddress = (unsigned long)ioremap_nocache(req.Base, req.Size); | |
1849 | data->MmioLength = req.Size; | |
1850 | } | |
1851 | /* If we got this far, we're cool! */ | |
1852 | break; | |
1853 | ||
1854 | next_entry: | |
1855 | nsp_dbg(NSP_DEBUG_INIT, "next"); | |
1856 | ||
1857 | if (link->io.NumPorts1) { | |
1858 | pcmcia_release_io(link->handle, &link->io); | |
1859 | } | |
1860 | CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple)); | |
1861 | } | |
1862 | ||
1863 | if (link->conf.Attributes & CONF_ENABLE_IRQ) { | |
1864 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); | |
1865 | } | |
1866 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); | |
1867 | ||
1868 | if (free_ports) { | |
1869 | if (link->io.BasePort1) { | |
1870 | release_region(link->io.BasePort1, link->io.NumPorts1); | |
1871 | } | |
1872 | if (link->io.BasePort2) { | |
1873 | release_region(link->io.BasePort2, link->io.NumPorts2); | |
1874 | } | |
1875 | } | |
1876 | ||
1877 | /* Set port and IRQ */ | |
1878 | data->BaseAddress = link->io.BasePort1; | |
1879 | data->NumAddress = link->io.NumPorts1; | |
1880 | data->IrqNumber = link->irq.AssignedIRQ; | |
1881 | ||
1882 | nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d", | |
1883 | data->BaseAddress, data->NumAddress, data->IrqNumber); | |
1884 | ||
1885 | if(nsphw_init(data) == FALSE) { | |
1886 | goto cs_failed; | |
1887 | } | |
1888 | ||
1889 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)) | |
1890 | host = nsp_detect(&nsp_driver_template); | |
1891 | #else | |
1892 | scsi_register_host(&nsp_driver_template); | |
1893 | for (host = scsi_host_get_next(NULL); host != NULL; | |
1894 | host = scsi_host_get_next(host)) { | |
1895 | if (host->hostt == &nsp_driver_template) { | |
1896 | break; | |
1897 | } | |
1898 | } | |
1899 | #endif | |
1900 | ||
1901 | if (host == NULL) { | |
1902 | nsp_dbg(NSP_DEBUG_INIT, "detect failed"); | |
1903 | goto cs_failed; | |
1904 | } | |
1905 | ||
1906 | ||
1907 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74)) | |
1908 | scsi_add_host (host, NULL); | |
1909 | scsi_scan_host(host); | |
1910 | ||
1911 | snprintf(info->node.dev_name, sizeof(info->node.dev_name), "scsi%d", host->host_no); | |
1912 | link->dev = &info->node; | |
1913 | info->host = host; | |
1914 | ||
1915 | #else | |
1916 | nsp_dbg(NSP_DEBUG_INIT, "GET_SCSI_INFO"); | |
1917 | tail = &link->dev; | |
1918 | info->ndev = 0; | |
1919 | ||
1920 | nsp_dbg(NSP_DEBUG_INIT, "host=0x%p", host); | |
1921 | ||
1922 | for (dev = host->host_queue; dev != NULL; dev = dev->next) { | |
1923 | unsigned long id; | |
1924 | id = (dev->id & 0x0f) + ((dev->lun & 0x0f) << 4) + | |
1925 | ((dev->channel & 0x0f) << 8) + | |
1926 | ((dev->host->host_no & 0x0f) << 12); | |
1927 | node = &info->node[info->ndev]; | |
1928 | node->minor = 0; | |
1929 | switch (dev->type) { | |
1930 | case TYPE_TAPE: | |
1931 | node->major = SCSI_TAPE_MAJOR; | |
1932 | snprintf(node->dev_name, sizeof(node->dev_name), "st#%04lx", id); | |
1933 | break; | |
1934 | case TYPE_DISK: | |
1935 | case TYPE_MOD: | |
1936 | node->major = SCSI_DISK0_MAJOR; | |
1937 | snprintf(node->dev_name, sizeof(node->dev_name), "sd#%04lx", id); | |
1938 | break; | |
1939 | case TYPE_ROM: | |
1940 | case TYPE_WORM: | |
1941 | node->major = SCSI_CDROM_MAJOR; | |
1942 | snprintf(node->dev_name, sizeof(node->dev_name), "sr#%04lx", id); | |
1943 | break; | |
1944 | default: | |
1945 | node->major = SCSI_GENERIC_MAJOR; | |
1946 | snprintf(node->dev_name, sizeof(node->dev_name), "sg#%04lx", id); | |
1947 | break; | |
1948 | } | |
1949 | *tail = node; tail = &node->next; | |
1950 | info->ndev++; | |
1951 | info->host = dev->host; | |
1952 | } | |
1953 | ||
1954 | *tail = NULL; | |
1955 | if (info->ndev == 0) { | |
1956 | nsp_msg(KERN_INFO, "no SCSI devices found"); | |
1957 | } | |
1958 | nsp_dbg(NSP_DEBUG_INIT, "host=0x%p", host); | |
1959 | #endif | |
1960 | ||
1961 | /* Finally, report what we've done */ | |
1962 | printk(KERN_INFO "nsp_cs: index 0x%02x: Vcc %d.%d", | |
1963 | link->conf.ConfigIndex, | |
1964 | link->conf.Vcc/10, link->conf.Vcc%10); | |
1965 | if (link->conf.Vpp1) { | |
1966 | printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10); | |
1967 | } | |
1968 | if (link->conf.Attributes & CONF_ENABLE_IRQ) { | |
1969 | printk(", irq %d", link->irq.AssignedIRQ); | |
1970 | } | |
1971 | if (link->io.NumPorts1) { | |
1972 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, | |
1973 | link->io.BasePort1+link->io.NumPorts1-1); | |
1974 | } | |
1975 | if (link->io.NumPorts2) | |
1976 | printk(" & 0x%04x-0x%04x", link->io.BasePort2, | |
1977 | link->io.BasePort2+link->io.NumPorts2-1); | |
1978 | if (link->win) | |
1979 | printk(", mem 0x%06lx-0x%06lx", req.Base, | |
1980 | req.Base+req.Size-1); | |
1981 | printk("\n"); | |
1982 | ||
1983 | link->state &= ~DEV_CONFIG_PENDING; | |
1984 | return; | |
1985 | ||
1986 | cs_failed: | |
1987 | nsp_dbg(NSP_DEBUG_INIT, "config fail"); | |
1988 | cs_error(link->handle, last_fn, last_ret); | |
1989 | nsp_cs_release(link); | |
1990 | ||
1991 | return; | |
1992 | } /* nsp_cs_config */ | |
1993 | #undef CS_CHECK | |
1994 | ||
1995 | ||
1996 | /*====================================================================== | |
1997 | After a card is removed, nsp_cs_release() will unregister the net | |
1998 | device, and release the PCMCIA configuration. If the device is | |
1999 | still open, this will be postponed until it is closed. | |
2000 | ======================================================================*/ | |
2001 | static void nsp_cs_release(dev_link_t *link) | |
2002 | { | |
2003 | scsi_info_t *info = link->priv; | |
2004 | nsp_hw_data *data = NULL; | |
2005 | ||
2006 | if (info->host == NULL) { | |
2007 | nsp_msg(KERN_DEBUG, "unexpected card release call."); | |
2008 | } else { | |
2009 | data = (nsp_hw_data *)info->host->hostdata; | |
2010 | } | |
2011 | ||
2012 | nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link); | |
2013 | ||
2014 | /* Unlink the device chain */ | |
2015 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,2)) | |
2016 | if (info->host != NULL) { | |
2017 | scsi_remove_host(info->host); | |
2018 | } | |
2019 | #else | |
2020 | scsi_unregister_host(&nsp_driver_template); | |
2021 | #endif | |
2022 | link->dev = NULL; | |
2023 | ||
2024 | if (link->win) { | |
2025 | if (data != NULL) { | |
2026 | iounmap((void *)(data->MmioAddress)); | |
2027 | } | |
2028 | pcmcia_release_window(link->win); | |
2029 | } | |
2030 | pcmcia_release_configuration(link->handle); | |
2031 | if (link->io.NumPorts1) { | |
2032 | pcmcia_release_io(link->handle, &link->io); | |
2033 | } | |
2034 | if (link->irq.AssignedIRQ) { | |
2035 | pcmcia_release_irq(link->handle, &link->irq); | |
2036 | } | |
2037 | link->state &= ~DEV_CONFIG; | |
2038 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,2)) | |
2039 | if (info->host != NULL) { | |
2040 | scsi_host_put(info->host); | |
2041 | } | |
2042 | #endif | |
2043 | } /* nsp_cs_release */ | |
2044 | ||
2045 | /*====================================================================== | |
2046 | ||
2047 | The card status event handler. Mostly, this schedules other | |
2048 | stuff to run after an event is received. A CARD_REMOVAL event | |
2049 | also sets some flags to discourage the net drivers from trying | |
2050 | to talk to the card any more. | |
2051 | ||
2052 | When a CARD_REMOVAL event is received, we immediately set a flag | |
2053 | to block future accesses to this device. All the functions that | |
2054 | actually access the device should check this flag to make sure | |
2055 | the card is still present. | |
2056 | ||
2057 | ======================================================================*/ | |
2058 | static int nsp_cs_event(event_t event, | |
2059 | int priority, | |
2060 | event_callback_args_t *args) | |
2061 | { | |
2062 | dev_link_t *link = args->client_data; | |
2063 | scsi_info_t *info = link->priv; | |
2064 | nsp_hw_data *data; | |
2065 | ||
2066 | nsp_dbg(NSP_DEBUG_INIT, "in, event=0x%08x", event); | |
2067 | ||
2068 | switch (event) { | |
2069 | case CS_EVENT_CARD_REMOVAL: | |
2070 | nsp_dbg(NSP_DEBUG_INIT, "event: remove"); | |
2071 | link->state &= ~DEV_PRESENT; | |
2072 | if (link->state & DEV_CONFIG) { | |
2073 | ((scsi_info_t *)link->priv)->stop = 1; | |
2074 | nsp_cs_release(link); | |
2075 | } | |
2076 | break; | |
2077 | ||
2078 | case CS_EVENT_CARD_INSERTION: | |
2079 | nsp_dbg(NSP_DEBUG_INIT, "event: insert"); | |
2080 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
2081 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,68)) | |
2082 | info->bus = args->bus; | |
2083 | #endif | |
2084 | nsp_cs_config(link); | |
2085 | break; | |
2086 | ||
2087 | case CS_EVENT_PM_SUSPEND: | |
2088 | nsp_dbg(NSP_DEBUG_INIT, "event: suspend"); | |
2089 | link->state |= DEV_SUSPEND; | |
2090 | /* Fall through... */ | |
2091 | case CS_EVENT_RESET_PHYSICAL: | |
2092 | /* Mark the device as stopped, to block IO until later */ | |
2093 | nsp_dbg(NSP_DEBUG_INIT, "event: reset physical"); | |
2094 | ||
2095 | if (info->host != NULL) { | |
2096 | nsp_msg(KERN_INFO, "clear SDTR status"); | |
2097 | ||
2098 | data = (nsp_hw_data *)info->host->hostdata; | |
2099 | ||
2100 | nsphw_init_sync(data); | |
2101 | } | |
2102 | ||
2103 | info->stop = 1; | |
2104 | if (link->state & DEV_CONFIG) { | |
2105 | pcmcia_release_configuration(link->handle); | |
2106 | } | |
2107 | break; | |
2108 | ||
2109 | case CS_EVENT_PM_RESUME: | |
2110 | nsp_dbg(NSP_DEBUG_INIT, "event: resume"); | |
2111 | link->state &= ~DEV_SUSPEND; | |
2112 | /* Fall through... */ | |
2113 | case CS_EVENT_CARD_RESET: | |
2114 | nsp_dbg(NSP_DEBUG_INIT, "event: reset"); | |
2115 | if (link->state & DEV_CONFIG) { | |
2116 | pcmcia_request_configuration(link->handle, &link->conf); | |
2117 | } | |
2118 | info->stop = 0; | |
2119 | ||
2120 | if (info->host != NULL) { | |
2121 | nsp_msg(KERN_INFO, "reset host and bus"); | |
2122 | ||
2123 | data = (nsp_hw_data *)info->host->hostdata; | |
2124 | ||
2125 | nsphw_init (data); | |
2126 | nsp_bus_reset(data); | |
2127 | } | |
2128 | ||
2129 | break; | |
2130 | ||
2131 | default: | |
2132 | nsp_dbg(NSP_DEBUG_INIT, "event: unknown"); | |
2133 | break; | |
2134 | } | |
2135 | nsp_dbg(NSP_DEBUG_INIT, "end"); | |
2136 | return 0; | |
2137 | } /* nsp_cs_event */ | |
2138 | ||
2139 | /*======================================================================* | |
2140 | * module entry point | |
2141 | *====================================================================*/ | |
2142 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68)) | |
2143 | static struct pcmcia_driver nsp_driver = { | |
2144 | .owner = THIS_MODULE, | |
2145 | .drv = { | |
2146 | .name = "nsp_cs", | |
2147 | }, | |
2148 | .attach = nsp_cs_attach, | |
2149 | .detach = nsp_cs_detach, | |
2150 | }; | |
2151 | #endif | |
2152 | ||
2153 | static int __init nsp_cs_init(void) | |
2154 | { | |
2155 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68)) | |
2156 | nsp_msg(KERN_INFO, "loading..."); | |
2157 | ||
2158 | return pcmcia_register_driver(&nsp_driver); | |
2159 | #else | |
2160 | servinfo_t serv; | |
2161 | ||
2162 | nsp_msg(KERN_INFO, "loading..."); | |
2163 | pcmcia_get_card_services_info(&serv); | |
2164 | if (serv.Revision != CS_RELEASE_CODE) { | |
2165 | nsp_msg(KERN_DEBUG, "Card Services release does not match!"); | |
2166 | return -EINVAL; | |
2167 | } | |
2168 | register_pcmcia_driver(&dev_info, &nsp_cs_attach, &nsp_cs_detach); | |
2169 | ||
2170 | nsp_dbg(NSP_DEBUG_INIT, "out"); | |
2171 | return 0; | |
2172 | #endif | |
2173 | } | |
2174 | ||
2175 | static void __exit nsp_cs_exit(void) | |
2176 | { | |
2177 | nsp_msg(KERN_INFO, "unloading..."); | |
2178 | ||
2179 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68)) | |
2180 | pcmcia_unregister_driver(&nsp_driver); | |
2181 | BUG_ON(dev_list != NULL); | |
2182 | #else | |
2183 | unregister_pcmcia_driver(&dev_info); | |
2184 | /* XXX: this really needs to move into generic code.. */ | |
2185 | while (dev_list != NULL) { | |
2186 | if (dev_list->state & DEV_CONFIG) { | |
2187 | nsp_cs_release(dev_list); | |
2188 | } | |
2189 | nsp_cs_detach(dev_list); | |
2190 | } | |
2191 | #endif | |
2192 | } | |
2193 | ||
2194 | ||
2195 | module_init(nsp_cs_init) | |
2196 | module_exit(nsp_cs_exit) | |
2197 | ||
2198 | /* end */ |