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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 (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 | /* */ | |
29 | ||
30 | #ifdef NSP_KERNEL_2_2 | |
31 | #include <pcmcia/config.h> | |
32 | #include <pcmcia/k_compat.h> | |
33 | #endif | |
34 | ||
35 | #include <linux/module.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/init.h> | |
38 | #include <linux/sched.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/string.h> | |
41 | #include <linux/timer.h> | |
42 | #include <linux/ioport.h> | |
43 | #include <linux/delay.h> | |
44 | #include <linux/interrupt.h> | |
45 | #include <linux/module.h> | |
46 | #include <linux/major.h> | |
47 | #include <linux/blk.h> | |
48 | #include <linux/stat.h> | |
49 | ||
50 | #include <asm/io.h> | |
51 | #include <asm/irq.h> | |
52 | ||
53 | #include "scsi.h" | |
54 | #include "hosts.h" | |
55 | ||
56 | #include <scsi/scsi.h> | |
57 | #include <scsi/scsi_ioctl.h> | |
58 | ||
59 | #include <pcmcia/version.h> | |
60 | #include <pcmcia/cs_types.h> | |
61 | #include <pcmcia/cs.h> | |
62 | #include <pcmcia/cistpl.h> | |
63 | #include <pcmcia/cisreg.h> | |
64 | #include <pcmcia/ds.h> | |
65 | ||
66 | #include "nsp_cs.h" | |
67 | ||
68 | MODULE_AUTHOR("YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>"); | |
69 | MODULE_DESCRIPTION("WorkBit NinjaSCSI-3 / NinjaSCSI-32Bi(16bit) PCMCIA SCSI host adapter module $Revision: 1.1 $"); | |
70 | MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); | |
71 | #ifdef MODULE_LICENSE | |
72 | MODULE_LICENSE("GPL"); | |
73 | #endif | |
74 | ||
75 | #ifdef PCMCIA_DEBUG | |
76 | static int pc_debug = PCMCIA_DEBUG; | |
77 | MODULE_PARM(pc_debug, "i"); | |
78 | MODULE_PARM_DESC(pc_debug, "set debug level"); | |
79 | static char *version = ""; | |
80 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) | |
81 | #else | |
82 | #define DEBUG(n, args...) /* */ | |
83 | #endif | |
84 | ||
85 | #include "nsp_io.h" | |
86 | ||
87 | /*====================================================================*/ | |
88 | ||
89 | typedef struct scsi_info_t { | |
90 | dev_link_t link; | |
91 | dev_node_t node; | |
92 | struct Scsi_Host *host; | |
93 | int stop; | |
94 | } scsi_info_t; | |
95 | ||
96 | ||
97 | /*----------------------------------------------------------------*/ | |
98 | ||
99 | #if (KERNEL_VERSION(2,4,0) > LINUX_VERSION_CODE) | |
100 | #define PROC_SCSI_NSP PROC_SCSI_IBMMCA /* bad hack... */ | |
101 | static struct proc_dir_entry proc_scsi_nsp = { | |
102 | PROC_SCSI_NSP, 6, "nsp_cs", | |
103 | S_IFDIR | S_IRUGO | S_IXUGO, 2 | |
104 | }; | |
105 | #endif | |
106 | ||
107 | /*====================================================================*/ | |
108 | /* Parameters that can be set with 'insmod' */ | |
109 | ||
110 | static unsigned int irq_mask = 0xffff; | |
111 | MODULE_PARM(irq_mask, "i"); | |
112 | MODULE_PARM_DESC(irq_mask, "IRQ mask bits (default: 0xffff)"); | |
113 | ||
114 | static int irq_list[4] = { -1 }; | |
115 | MODULE_PARM(irq_list, "1-4i"); | |
116 | MODULE_PARM_DESC(irq_list, "Use specified IRQ number. (default: auto select)"); | |
117 | ||
118 | static int nsp_burst_mode = 2; | |
119 | MODULE_PARM(nsp_burst_mode, "i"); | |
120 | MODULE_PARM_DESC(nsp_burst_mode, "Burst transfer mode (0=io8, 1=io32, 2=mem32(default))"); | |
121 | ||
122 | /* Release IO ports after configuration? */ | |
123 | static int free_ports = 0; | |
124 | MODULE_PARM(free_ports, "i"); | |
125 | MODULE_PARM_DESC(free_ports, "Release IO ports after configuration? (default: 0 (=no))"); | |
126 | ||
127 | /* /usr/src/linux/drivers/scsi/hosts.h */ | |
128 | static Scsi_Host_Template nsp_driver_template = { | |
129 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)) | |
130 | .proc_name = "nsp_cs", /* kernel 2.4 */ | |
131 | #else | |
132 | .proc_dir = &proc_scsi_nsp, /* kernel 2.2 */ | |
133 | #endif | |
134 | .proc_info = nsp_proc_info, | |
135 | .name = "WorkBit NinjaSCSI-3/32Bi(16bit)", | |
136 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) | |
137 | .detect = nsp_detect, | |
138 | .release = nsp_release, | |
139 | #endif | |
140 | .info = nsp_info, | |
141 | .queuecommand = nsp_queuecommand, | |
142 | /* .eh_strategy_handler = nsp_eh_strategy,*/ | |
143 | /* .eh_abort_handler = nsp_eh_abort,*/ | |
144 | /* .eh_device_reset_handler = nsp_eh_device_reset,*/ | |
145 | .eh_bus_reset_handler = nsp_eh_bus_reset, | |
146 | .eh_host_reset_handler = nsp_eh_host_reset, | |
147 | .can_queue = 1, | |
148 | .this_id = NSP_INITIATOR_ID, | |
149 | .sg_tablesize = SG_ALL, | |
150 | .cmd_per_lun = 1, | |
151 | .use_clustering = DISABLE_CLUSTERING, | |
152 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,2)) | |
153 | .use_new_eh_code = 1, | |
154 | #endif | |
155 | }; | |
156 | ||
157 | static dev_link_t *dev_list = NULL; | |
158 | static dev_info_t dev_info = {"nsp_cs"}; | |
159 | ||
160 | static nsp_hw_data nsp_data; | |
161 | ||
162 | /***********************************************************/ | |
163 | ||
164 | static int nsp_queuecommand(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) | |
165 | { | |
166 | #ifdef PCMCIA_DEBUG | |
167 | /*unsigned int host_id = SCpnt->host->this_id;*/ | |
168 | /*unsigned int base = SCpnt->host->io_port;*/ | |
169 | unsigned char target = SCpnt->target; | |
170 | #endif | |
171 | nsp_hw_data *data = &nsp_data; | |
172 | ||
173 | DEBUG(0, "%s: SCpnt=0x%p target=%d lun=%d buff=0x%p bufflen=%d use_sg=%d\n", | |
174 | __FUNCTION__, SCpnt, target, SCpnt->lun, SCpnt->request_buffer, SCpnt->request_bufflen, SCpnt->use_sg); | |
175 | //DEBUG(0, " before CurrentSC=0x%p\n", data->CurrentSC); | |
176 | ||
177 | if(data->CurrentSC != NULL) { | |
178 | printk(KERN_DEBUG " %s: CurrentSC!=NULL this can't be happen\n", __FUNCTION__); | |
179 | data->CurrentSC = NULL; | |
180 | SCpnt->result = DID_BAD_TARGET << 16; | |
181 | done(SCpnt); | |
182 | return -1; | |
183 | } | |
184 | ||
185 | show_command(SCpnt); | |
186 | ||
187 | SCpnt->scsi_done = done; | |
188 | data->CurrentSC = SCpnt; | |
189 | ||
190 | SCpnt->SCp.Status = CHECK_CONDITION; | |
191 | SCpnt->SCp.Message = 0; | |
192 | SCpnt->SCp.have_data_in = IO_UNKNOWN; | |
193 | SCpnt->SCp.sent_command = 0; | |
194 | SCpnt->SCp.phase = PH_UNDETERMINED; | |
195 | RESID = SCpnt->request_bufflen; | |
196 | ||
197 | /* setup scratch area | |
198 | SCp.ptr : buffer pointer | |
199 | SCp.this_residual : buffer length | |
200 | SCp.buffer : next buffer | |
201 | SCp.buffers_residual : left buffers in list | |
202 | SCp.phase : current state of the command */ | |
203 | if (SCpnt->use_sg) { | |
204 | SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer; | |
205 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
206 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
207 | SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1; | |
208 | } else { | |
209 | SCpnt->SCp.ptr = (char *) SCpnt->request_buffer; | |
210 | SCpnt->SCp.this_residual = SCpnt->request_bufflen; | |
211 | SCpnt->SCp.buffer = NULL; | |
212 | SCpnt->SCp.buffers_residual = 0; | |
213 | } | |
214 | ||
215 | if(nsphw_start_selection(SCpnt, data) == FALSE) { | |
216 | DEBUG(0, " selection fail\n"); | |
217 | data->CurrentSC = NULL; | |
218 | SCpnt->result = DID_NO_CONNECT << 16; | |
219 | done(SCpnt); | |
220 | return -1; | |
221 | } | |
222 | ||
223 | ||
224 | //DEBUG(0, "%s: out\n", __FUNCTION__); | |
225 | return 0; | |
226 | } | |
227 | ||
228 | /* | |
229 | * setup PIO FIFO transfer mode and enable/disable to data out | |
230 | */ | |
231 | static void nsp_setup_fifo(nsp_hw_data *data, int enabled) | |
232 | { | |
233 | unsigned int base = data->BaseAddress; | |
234 | unsigned char transfer_mode_reg; | |
235 | ||
236 | //DEBUG(0, "%s: enabled=%d\n", __FUNCTION__, enabled); | |
237 | ||
238 | if (enabled != FALSE) { | |
239 | transfer_mode_reg = TRANSFER_GO | BRAIND; | |
240 | } else { | |
241 | transfer_mode_reg = 0; | |
242 | } | |
243 | ||
244 | transfer_mode_reg |= data->TransferMode; | |
245 | ||
246 | nsp_index_write(base, TRANSFERMODE, transfer_mode_reg); | |
247 | } | |
248 | ||
249 | static void nsphw_init_sync(nsp_hw_data *data) | |
250 | { | |
251 | sync_data tmp_sync = { .SyncNegotiation = SYNC_NOT_YET, | |
252 | .SyncPeriod = 0, | |
253 | .SyncOffset = 0 | |
254 | }; | |
255 | int i; | |
256 | ||
257 | /* setup sync data */ | |
258 | for ( i = 0; i < NUMBER(data->Sync); i++ ) { | |
259 | data->Sync[i] = tmp_sync; | |
260 | } | |
261 | } | |
262 | ||
263 | /* | |
264 | * Initialize Ninja hardware | |
265 | */ | |
266 | static int nsphw_init(nsp_hw_data *data) | |
267 | { | |
268 | unsigned int base = data->BaseAddress; | |
269 | ||
270 | DEBUG(0, "%s: in base=0x%x\n", __FUNCTION__, base); | |
271 | ||
272 | data->ScsiClockDiv = CLOCK_40M | FAST_20; | |
273 | data->CurrentSC = NULL; | |
274 | data->FifoCount = 0; | |
275 | data->TransferMode = MODE_IO8; | |
276 | ||
277 | nsphw_init_sync(data); | |
278 | ||
279 | /* block all interrupts */ | |
280 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); | |
281 | ||
282 | /* setup SCSI interface */ | |
283 | nsp_write(base, IFSELECT, IF_IFSEL); | |
284 | ||
285 | nsp_index_write(base, SCSIIRQMODE, 0); | |
286 | ||
287 | nsp_index_write(base, TRANSFERMODE, MODE_IO8); | |
288 | nsp_index_write(base, CLOCKDIV, data->ScsiClockDiv); | |
289 | ||
290 | nsp_index_write(base, PARITYCTRL, 0); | |
291 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | | |
292 | ACK_COUNTER_CLEAR | | |
293 | REQ_COUNTER_CLEAR | | |
294 | HOST_COUNTER_CLEAR); | |
295 | ||
296 | /* setup fifo asic */ | |
297 | nsp_write(base, IFSELECT, IF_REGSEL); | |
298 | nsp_index_write(base, TERMPWRCTRL, 0); | |
299 | if ((nsp_index_read(base, OTHERCONTROL) & TPWR_SENSE) == 0) { | |
300 | printk(KERN_INFO "nsp_cs: terminator power on\n"); | |
301 | nsp_index_write(base, TERMPWRCTRL, POWER_ON); | |
302 | } | |
303 | ||
304 | nsp_index_write(base, TIMERCOUNT, 0); | |
305 | nsp_index_write(base, TIMERCOUNT, 0); /* requires 2 times!! */ | |
306 | ||
307 | nsp_index_write(base, SYNCREG, 0); | |
308 | nsp_index_write(base, ACKWIDTH, 0); | |
309 | ||
310 | /* enable interrupts and ack them */ | |
311 | nsp_index_write(base, SCSIIRQMODE, SCSI_PHASE_CHANGE_EI | | |
312 | RESELECT_EI | | |
313 | SCSI_RESET_IRQ_EI ); | |
314 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); | |
315 | ||
316 | nsp_setup_fifo(data, FALSE); | |
317 | ||
318 | return TRUE; | |
319 | } | |
320 | ||
321 | /* | |
322 | * Start selection phase | |
323 | */ | |
324 | static unsigned int nsphw_start_selection(Scsi_Cmnd *SCpnt, | |
325 | nsp_hw_data *data) | |
326 | { | |
327 | unsigned int host_id = SCpnt->device->host->this_id; | |
328 | unsigned int base = SCpnt->device->host->io_port; | |
329 | unsigned char target = SCpnt->device->id; | |
330 | int time_out; | |
331 | unsigned char phase, arbit; | |
332 | ||
333 | //DEBUG(0, "%s:in\n", __FUNCTION__); | |
334 | ||
335 | phase = nsp_index_read(base, SCSIBUSMON); | |
336 | if(phase != BUSMON_BUS_FREE) { | |
337 | //DEBUG(0, " bus busy\n"); | |
338 | return FALSE; | |
339 | } | |
340 | ||
341 | /* start arbitration */ | |
342 | //DEBUG(0, " start arbit\n"); | |
343 | SCpnt->SCp.phase = PH_ARBSTART; | |
344 | nsp_index_write(base, SETARBIT, ARBIT_GO); | |
345 | ||
346 | time_out = 1000; | |
347 | do { | |
348 | /* XXX: what a stupid chip! */ | |
349 | arbit = nsp_index_read(base, ARBITSTATUS); | |
350 | //DEBUG(0, " arbit=%d, wait_count=%d\n", arbit, wait_count); | |
351 | udelay(1); /* hold 1.2us */ | |
352 | } while((arbit & (ARBIT_WIN | ARBIT_FAIL)) == 0 && | |
353 | (time_out-- != 0)); | |
354 | ||
355 | if((arbit & ARBIT_WIN) == 0) { | |
356 | //DEBUG(0, " arbit fail\n"); | |
357 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); | |
358 | return FALSE; | |
359 | } | |
360 | ||
361 | /* assert select line */ | |
362 | //DEBUG(0, " assert SEL line\n"); | |
363 | SCpnt->SCp.phase = PH_SELSTART; | |
364 | udelay(3); | |
365 | nsp_index_write(base, SCSIDATALATCH, BIT(host_id) | BIT(target)); | |
366 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_ATN); | |
367 | udelay(3); | |
368 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_DATAOUT_ENB | SCSI_ATN); | |
369 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); | |
370 | udelay(3); | |
371 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_DATAOUT_ENB | SCSI_ATN); | |
372 | ||
373 | /* check selection timeout */ | |
374 | nsp_start_timer(SCpnt, data, 1000/51); | |
375 | data->SelectionTimeOut = 1; | |
376 | ||
377 | return TRUE; | |
378 | } | |
379 | ||
380 | struct nsp_sync_table { | |
381 | unsigned int min_period; | |
382 | unsigned int max_period; | |
383 | unsigned int chip_period; | |
384 | unsigned int ack_width; | |
385 | }; | |
386 | ||
387 | static struct nsp_sync_table nsp_sync_table_40M[] = { | |
388 | {0x0c,0x0c,0x1,0}, /* 20MB 50ns*/ | |
389 | {0x19,0x19,0x3,1}, /* 10MB 100ns*/ | |
390 | {0x1a,0x25,0x5,2}, /* 7.5MB 150ns*/ | |
391 | {0x26,0x32,0x7,3}, /* 5MB 200ns*/ | |
392 | {0x0, 0, 0, 0} | |
393 | }; | |
394 | ||
395 | static struct nsp_sync_table nsp_sync_table_20M[] = { | |
396 | {0x19,0x19,0x1,0}, /* 10MB 100ns*/ | |
397 | {0x1a,0x25,0x2,0}, /* 7.5MB 150ns*/ | |
398 | {0x26,0x32,0x3,1}, /* 5MB 200ns*/ | |
399 | {0x0, 0, 0, 0} | |
400 | }; | |
401 | ||
402 | /* | |
403 | * setup synchronous data transfer mode | |
404 | */ | |
405 | static int nsp_msg(Scsi_Cmnd *SCpnt, nsp_hw_data *data) | |
406 | { | |
407 | unsigned char target = SCpnt->device->id; | |
408 | // unsigned char lun = SCpnt->lun; | |
409 | sync_data *sync = &(data->Sync[target]); | |
410 | struct nsp_sync_table *sync_table; | |
411 | unsigned int period, offset; | |
412 | int i; | |
413 | ||
414 | ||
415 | DEBUG(0, "%s:\n", __FUNCTION__); | |
416 | ||
417 | period = sync->SyncPeriod; | |
418 | offset = sync->SyncOffset; | |
419 | ||
420 | DEBUG(0, " period=0x%x, offset=0x%x\n", period, offset); | |
421 | ||
422 | if ((data->ScsiClockDiv & (BIT(0)|BIT(1))) == CLOCK_20M) { | |
423 | sync_table = &nsp_sync_table_20M[0]; | |
424 | } else { | |
425 | sync_table = &nsp_sync_table_40M[0]; | |
426 | } | |
427 | ||
428 | for ( i = 0; sync_table->max_period != 0; i++, sync_table++) { | |
429 | if ( period >= sync_table->min_period && | |
430 | period <= sync_table->max_period ) { | |
431 | break; | |
432 | } | |
433 | } | |
434 | ||
435 | if (period != 0 && sync_table->max_period == 0) { | |
436 | /* | |
437 | * No proper period/offset found | |
438 | */ | |
439 | DEBUG(0, " no proper period/offset\n"); | |
440 | ||
441 | sync->SyncPeriod = 0; | |
442 | sync->SyncOffset = 0; | |
443 | sync->SyncRegister = 0; | |
444 | sync->AckWidth = 0; | |
445 | ||
446 | return FALSE; | |
447 | } | |
448 | ||
449 | sync->SyncRegister = (sync_table->chip_period << SYNCREG_PERIOD_SHIFT) | | |
450 | (offset & SYNCREG_OFFSET_MASK); | |
451 | sync->AckWidth = sync_table->ack_width; | |
452 | ||
453 | DEBUG(0, " sync_reg=0x%x, ack_width=0x%x\n", sync->SyncRegister, sync->AckWidth); | |
454 | ||
455 | return TRUE; | |
456 | } | |
457 | ||
458 | ||
459 | /* | |
460 | * start ninja hardware timer | |
461 | */ | |
462 | static void nsp_start_timer(Scsi_Cmnd *SCpnt, nsp_hw_data *data, int time) | |
463 | { | |
464 | unsigned int base = SCpnt->device->host->io_port; | |
465 | ||
466 | //DEBUG(0, "%s: in SCpnt=0x%p, time=%d\n", __FUNCTION__, SCpnt, time); | |
467 | data->TimerCount = time; | |
468 | nsp_index_write(base, TIMERCOUNT, time); | |
469 | } | |
470 | ||
471 | /* | |
472 | * wait for bus phase change | |
473 | */ | |
474 | static int nsp_negate_signal(Scsi_Cmnd *SCpnt, unsigned char mask, char *str) | |
475 | { | |
476 | unsigned int base = SCpnt->device->host->io_port; | |
477 | unsigned char reg; | |
478 | int time_out; | |
479 | ||
480 | //DEBUG(0, "%s:\n", __FUNCTION__); | |
481 | ||
482 | time_out = 100; | |
483 | ||
484 | do { | |
485 | reg = nsp_index_read(base, SCSIBUSMON); | |
486 | if (reg == 0xff) { | |
487 | break; | |
488 | } | |
489 | } while ((time_out-- != 0) && (reg & mask) != 0); | |
490 | ||
491 | if (time_out == 0) { | |
492 | printk(KERN_DEBUG "%s:: %s signal off timeut\n", __FUNCTION__, str); | |
493 | } | |
494 | ||
495 | return 0; | |
496 | } | |
497 | ||
498 | /* | |
499 | * expect Ninja Irq | |
500 | */ | |
501 | static int nsp_expect_signal(Scsi_Cmnd *SCpnt, | |
502 | unsigned char current_phase, | |
503 | unsigned char mask) | |
504 | { | |
505 | unsigned int base = SCpnt->device->host->io_port; | |
506 | int time_out; | |
507 | unsigned char phase, i_src; | |
508 | ||
509 | //DEBUG(0, "%s: current_phase=0x%x, mask=0x%x\n", __FUNCTION__, current_phase, mask); | |
510 | ||
511 | time_out = 100; | |
512 | do { | |
513 | phase = nsp_index_read(base, SCSIBUSMON); | |
514 | if (phase == 0xff) { | |
515 | //DEBUG(0, " ret -1\n"); | |
516 | return -1; | |
517 | } | |
518 | i_src = nsp_read(base, IRQSTATUS); | |
519 | if (i_src & IRQSTATUS_SCSI) { | |
520 | //DEBUG(0, " ret 0 found scsi signal\n"); | |
521 | return 0; | |
522 | } | |
523 | if ((phase & mask) != 0 && (phase & BUSMON_PHASE_MASK) == current_phase) { | |
524 | //DEBUG(0, " ret 1 phase=0x%x\n", phase); | |
525 | return 1; | |
526 | } | |
527 | } while(time_out-- != 0); | |
528 | ||
529 | //DEBUG(0, "%s: timeout\n", __FUNCTION__); | |
530 | return -1; | |
531 | } | |
532 | ||
533 | /* | |
534 | * transfer SCSI message | |
535 | */ | |
536 | static int nsp_xfer(Scsi_Cmnd *SCpnt, nsp_hw_data *data, int phase) | |
537 | { | |
538 | unsigned int base = SCpnt->device->host->io_port; | |
539 | char *buf = data->MsgBuffer; | |
540 | int len = MIN(MSGBUF_SIZE, data->MsgLen); | |
541 | int ptr; | |
542 | int ret; | |
543 | ||
544 | //DEBUG(0, "%s:\n", __FUNCTION__); | |
545 | for (ptr = 0; len > 0; len --, ptr ++) { | |
546 | ||
547 | ret = nsp_expect_signal(SCpnt, phase, BUSMON_REQ); | |
548 | if (ret <= 0) { | |
549 | DEBUG(0, " xfer quit\n"); | |
550 | return 0; | |
551 | } | |
552 | ||
553 | /* if last byte, negate ATN */ | |
554 | if (len == 1 && SCpnt->SCp.phase == PH_MSG_OUT) { | |
555 | nsp_index_write(base, SCSIBUSCTRL, AUTODIRECTION | ACKENB); | |
556 | } | |
557 | ||
558 | /* read & write message */ | |
559 | if (phase & BUSMON_IO) { | |
560 | DEBUG(0, " read msg\n"); | |
561 | buf[ptr] = nsp_index_read(base, SCSIDATAWITHACK); | |
562 | } else { | |
563 | DEBUG(0, " write msg\n"); | |
564 | nsp_index_write(base, SCSIDATAWITHACK, buf[ptr]); | |
565 | } | |
566 | nsp_negate_signal(SCpnt, BUSMON_ACK, "xfer<ack>"); | |
567 | ||
568 | } | |
569 | return len; | |
570 | } | |
571 | ||
572 | /* | |
573 | * get extra SCSI data from fifo | |
574 | */ | |
575 | static int nsp_dataphase_bypass(Scsi_Cmnd *SCpnt, nsp_hw_data *data) | |
576 | { | |
577 | unsigned int count; | |
578 | ||
579 | //DEBUG(0, "%s:\n", __FUNCTION__); | |
580 | ||
581 | if (SCpnt->SCp.have_data_in != IO_IN) { | |
582 | return 0; | |
583 | } | |
584 | ||
585 | count = nsp_fifo_count(SCpnt); | |
586 | if (data->FifoCount == count) { | |
587 | //DEBUG(0, " not use bypass quirk\n"); | |
588 | return 0; | |
589 | } | |
590 | ||
591 | /* | |
592 | * XXX: NSP_QUIRK | |
593 | * data phase skip only occures in case of SCSI_LOW_READ | |
594 | */ | |
595 | DEBUG(0, " use bypass quirk\n"); | |
596 | SCpnt->SCp.phase = PH_DATA; | |
597 | nsp_pio_read(SCpnt, data); | |
598 | nsp_setup_fifo(data, FALSE); | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
603 | /* | |
604 | * accept reselection | |
605 | */ | |
606 | static int nsp_reselected(Scsi_Cmnd *SCpnt, nsp_hw_data *data) | |
607 | { | |
608 | unsigned int base = SCpnt->device->host->io_port; | |
609 | unsigned char reg; | |
610 | ||
611 | //DEBUG(0, "%s:\n", __FUNCTION__); | |
612 | ||
613 | nsp_negate_signal(SCpnt, BUSMON_SEL, "reselect<SEL>"); | |
614 | ||
615 | nsp_nexus(SCpnt, data); | |
616 | reg = nsp_index_read(base, SCSIBUSCTRL) & ~(SCSI_BSY | SCSI_ATN); | |
617 | nsp_index_write(base, SCSIBUSCTRL, reg); | |
618 | nsp_index_write(base, SCSIBUSCTRL, reg | AUTODIRECTION | ACKENB); | |
619 | ||
620 | return TRUE; | |
621 | } | |
622 | ||
623 | /* | |
624 | * count how many data transferd | |
625 | */ | |
626 | static int nsp_fifo_count(Scsi_Cmnd *SCpnt) | |
627 | { | |
628 | unsigned int base = SCpnt->device->host->io_port; | |
629 | unsigned int count; | |
630 | unsigned int l, m, h, dummy; | |
631 | ||
632 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | ACK_COUNTER); | |
633 | ||
634 | l = nsp_index_read(base, TRANSFERCOUNT); | |
635 | m = nsp_index_read(base, TRANSFERCOUNT); | |
636 | h = nsp_index_read(base, TRANSFERCOUNT); | |
637 | dummy = nsp_index_read(base, TRANSFERCOUNT); | |
638 | ||
639 | count = (h << 16) | (m << 8) | (l << 0); | |
640 | ||
641 | //DEBUG(0, "%s: =0x%x\n", __FUNCTION__, count); | |
642 | ||
643 | return count; | |
644 | } | |
645 | ||
646 | /* fifo size */ | |
647 | #define RFIFO_CRIT 64 | |
648 | #define WFIFO_CRIT 64 | |
649 | ||
650 | /* | |
651 | * read data in DATA IN phase | |
652 | */ | |
653 | static void nsp_pio_read(Scsi_Cmnd *SCpnt, nsp_hw_data *data) | |
654 | { | |
655 | unsigned int base = SCpnt->device->host->io_port; | |
656 | unsigned long mmio_base = SCpnt->device->host->base; | |
657 | long time_out; | |
658 | int ocount, res; | |
659 | unsigned char stat, fifo_stat; | |
660 | ||
661 | ocount = data->FifoCount; | |
662 | ||
663 | DEBUG(0, "%s: in SCpnt=0x%p resid=%d ocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d\n", | |
664 | __FUNCTION__, SCpnt, RESID, ocount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual); | |
665 | ||
666 | time_out = 1000; | |
667 | ||
668 | while ((time_out-- != 0) && | |
669 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0 ) ) { | |
670 | ||
671 | stat = nsp_index_read(base, SCSIBUSMON); | |
672 | stat &= BUSMON_PHASE_MASK; | |
673 | ||
674 | ||
675 | res = nsp_fifo_count(SCpnt) - ocount; | |
676 | //DEBUG(0, " ptr=0x%p this=0x%x ocount=0x%x res=0x%x\n", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount, res); | |
677 | if (res == 0) { /* if some data avilable ? */ | |
678 | if (stat == BUSPHASE_DATA_IN) { /* phase changed? */ | |
679 | //DEBUG(0, " wait for data this=%d\n", SCpnt->SCp.this_residual); | |
680 | continue; | |
681 | } else { | |
682 | DEBUG(0, " phase changed stat=0x%x\n", stat); | |
683 | break; | |
684 | } | |
685 | } | |
686 | ||
687 | fifo_stat = nsp_read(base, FIFOSTATUS); | |
688 | if ((fifo_stat & FIFOSTATUS_FULL_EMPTY) == 0 && | |
689 | stat == BUSPHASE_DATA_IN) { | |
690 | continue; | |
691 | } | |
692 | ||
693 | res = MIN(res, SCpnt->SCp.this_residual); | |
694 | ||
695 | switch (data->TransferMode) { | |
696 | case MODE_IO32: | |
697 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
698 | nsp_fifo32_read(base, SCpnt->SCp.ptr, res >> 2); | |
699 | break; | |
700 | case MODE_IO8: | |
701 | nsp_fifo8_read (base, SCpnt->SCp.ptr, res ); | |
702 | break; | |
703 | ||
704 | case MODE_MEM32: | |
705 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
706 | nsp_mmio_fifo32_read(mmio_base, SCpnt->SCp.ptr, res >> 2); | |
707 | break; | |
708 | ||
709 | default: | |
710 | DEBUG(0, "unknown read mode\n"); | |
711 | return; | |
712 | } | |
713 | ||
714 | RESID -= res; | |
715 | SCpnt->SCp.ptr += res; | |
716 | SCpnt->SCp.this_residual -= res; | |
717 | ocount += res; | |
718 | //DEBUG(0, " ptr=0x%p this_residual=0x%x ocount=0x%x\n", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount); | |
719 | ||
720 | /* go to next scatter list if availavle */ | |
721 | if (SCpnt->SCp.this_residual == 0 && | |
722 | SCpnt->SCp.buffers_residual != 0 ) { | |
723 | //DEBUG(0, " scatterlist next timeout=%d\n", time_out); | |
724 | SCpnt->SCp.buffers_residual--; | |
725 | SCpnt->SCp.buffer++; | |
726 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
727 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
728 | time_out = 1000; | |
729 | ||
730 | //DEBUG(0, "page: 0x%p, off: 0x%x\n", SCpnt->SCp.buffer->page, SCpnt->SCp.buffer->offset); | |
731 | } | |
732 | } | |
733 | ||
734 | data->FifoCount = ocount; | |
735 | ||
736 | if (time_out == 0) { | |
737 | printk(KERN_DEBUG "%s: pio read timeout resid=%d this_residual=%d buffers_residual=%d\n", | |
738 | __FUNCTION__, RESID, SCpnt->SCp.this_residual, SCpnt->SCp.buffers_residual); | |
739 | } | |
740 | DEBUG(0, " read ocount=0x%x\n", ocount); | |
741 | } | |
742 | ||
743 | /* | |
744 | * write data in DATA OUT phase | |
745 | */ | |
746 | static void nsp_pio_write(Scsi_Cmnd *SCpnt, nsp_hw_data *data) | |
747 | { | |
748 | unsigned int base = SCpnt->device->host->io_port; | |
749 | unsigned long mmio_base = SCpnt->device->host->base; | |
750 | int time_out; | |
751 | int ocount, res; | |
752 | unsigned char stat; | |
753 | ||
754 | ocount = data->FifoCount; | |
755 | ||
756 | DEBUG(0, "%s: in fifocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d resid=0x%x\n", | |
757 | __FUNCTION__, data->FifoCount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual, RESID); | |
758 | ||
759 | time_out = 1000; | |
760 | ||
761 | while ((time_out-- != 0) && | |
762 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0)) { | |
763 | stat = nsp_index_read(base, SCSIBUSMON); | |
764 | stat &= BUSMON_PHASE_MASK; | |
765 | ||
766 | if (stat != BUSPHASE_DATA_OUT) { | |
767 | res = ocount - nsp_fifo_count(SCpnt); | |
768 | ||
769 | DEBUG(0, " phase changed stat=0x%x, res=%d\n", stat, res); | |
770 | /* Put back pointer */ | |
771 | RESID += res; | |
772 | SCpnt->SCp.ptr -= res; | |
773 | SCpnt->SCp.this_residual += res; | |
774 | ocount -= res; | |
775 | ||
776 | break; | |
777 | } | |
778 | ||
779 | res = ocount - nsp_fifo_count(SCpnt); | |
780 | if (res > 0) { /* write all data? */ | |
781 | DEBUG(0, " wait for all data out. ocount=0x%x res=%d\n", ocount, res); | |
782 | continue; | |
783 | } | |
784 | ||
785 | res = MIN(SCpnt->SCp.this_residual, WFIFO_CRIT); | |
786 | ||
787 | //DEBUG(0, " ptr=0x%p this=0x%x res=0x%x\n", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, res); | |
788 | switch (data->TransferMode) { | |
789 | case MODE_IO32: | |
790 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
791 | nsp_fifo32_write(base, SCpnt->SCp.ptr, res >> 2); | |
792 | break; | |
793 | case MODE_IO8: | |
794 | nsp_fifo8_write (base, SCpnt->SCp.ptr, res ); | |
795 | break; | |
796 | ||
797 | case MODE_MEM32: | |
798 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ | |
799 | nsp_mmio_fifo32_write(mmio_base, SCpnt->SCp.ptr, res >> 2); | |
800 | break; | |
801 | ||
802 | default: | |
803 | DEBUG(0, "unknown write mode\n"); | |
804 | break; | |
805 | } | |
806 | ||
807 | RESID -= res; | |
808 | SCpnt->SCp.ptr += res; | |
809 | SCpnt->SCp.this_residual -= res; | |
810 | ocount += res; | |
811 | ||
812 | /* go to next scatter list if availavle */ | |
813 | if (SCpnt->SCp.this_residual == 0 && | |
814 | SCpnt->SCp.buffers_residual != 0 ) { | |
815 | //DEBUG(0, " scatterlist next\n"); | |
816 | SCpnt->SCp.buffers_residual--; | |
817 | SCpnt->SCp.buffer++; | |
818 | SCpnt->SCp.ptr = BUFFER_ADDR; | |
819 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
820 | time_out = 1000; | |
821 | } | |
822 | } | |
823 | ||
824 | data->FifoCount = ocount; | |
825 | ||
826 | if (time_out == 0) { | |
827 | printk(KERN_DEBUG "%s: pio write timeout resid=0x%x\n", __FUNCTION__, RESID); | |
828 | } | |
829 | DEBUG(0, " write ocount=0x%x\n", ocount); | |
830 | } | |
831 | ||
832 | #undef RFIFO_CRIT | |
833 | #undef WFIFO_CRIT | |
834 | ||
835 | /* | |
836 | * setup synchronous/asynchronous data transfer mode | |
837 | */ | |
838 | static int nsp_nexus(Scsi_Cmnd *SCpnt, nsp_hw_data *data) | |
839 | { | |
840 | unsigned int base = SCpnt->device->host->io_port; | |
841 | unsigned char target = SCpnt->device->id; | |
842 | // unsigned char lun = SCpnt->lun; | |
843 | sync_data *sync = &(data->Sync[target]); | |
844 | ||
845 | //DEBUG(0, "%s: in SCpnt=0x%p\n", __FUNCTION__, SCpnt); | |
846 | ||
847 | /* setup synch transfer registers */ | |
848 | nsp_index_write(base, SYNCREG, sync->SyncRegister); | |
849 | nsp_index_write(base, ACKWIDTH, sync->AckWidth); | |
850 | ||
851 | if (SCpnt->use_sg == 0 || | |
852 | RESID % 4 != 0 || | |
853 | RESID <= PAGE_SIZE ) { | |
854 | data->TransferMode = MODE_IO8; | |
855 | } else if (nsp_burst_mode == BURST_MEM32) { | |
856 | data->TransferMode = MODE_MEM32; | |
857 | } else if (nsp_burst_mode == BURST_IO32) { | |
858 | data->TransferMode = MODE_IO32; | |
859 | } else { | |
860 | data->TransferMode = MODE_IO8; | |
861 | } | |
862 | ||
863 | /* setup pdma fifo */ | |
864 | nsp_setup_fifo(data, TRUE); | |
865 | ||
866 | /* clear ack counter */ | |
867 | data->FifoCount = 0; | |
868 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | | |
869 | ACK_COUNTER_CLEAR | | |
870 | REQ_COUNTER_CLEAR | | |
871 | HOST_COUNTER_CLEAR); | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
876 | #include "nsp_message.c" | |
877 | /* | |
878 | * interrupt handler | |
879 | */ | |
880 | static void nspintr(int irq, void *dev_id, struct pt_regs *regs) | |
881 | { | |
882 | unsigned int base; | |
883 | unsigned char i_src, irq_phase, phase; | |
884 | Scsi_Cmnd *tmpSC; | |
885 | unsigned char target, lun; | |
886 | unsigned int *sync_neg; | |
887 | int i, tmp; | |
888 | nsp_hw_data *data = dev_id; | |
889 | ||
890 | //printk("&nsp_data=0x%p, dev_id=0x%p\n", &nsp_data, dev_id); | |
891 | ||
892 | base = data->BaseAddress; | |
893 | //DEBUG(0, " base=0x%x\n", base); | |
894 | ||
895 | /* | |
896 | * interrupt check | |
897 | */ | |
898 | nsp_write(base, IRQCONTROL, IRQCONTROL_IRQDISABLE); | |
899 | i_src = nsp_read(base, IRQSTATUS); | |
900 | //DEBUG(0, " i_src=0x%x\n", i_src); | |
901 | if ((i_src == 0xff) || ((i_src & IRQSTATUS_MASK) == 0)) { | |
902 | nsp_write(base, IRQCONTROL, 0); | |
903 | //DEBUG(0, " no irq/shared irq\n"); | |
904 | return; | |
905 | } | |
906 | ||
907 | ||
908 | /* XXX: IMPORTANT | |
909 | * Do not read an irq_phase register if no scsi phase interrupt. | |
910 | * Unless, you should lose a scsi phase interrupt. | |
911 | */ | |
912 | phase = nsp_index_read(base, SCSIBUSMON); | |
913 | if((i_src & IRQSTATUS_SCSI) != 0) { | |
914 | irq_phase = nsp_index_read(base, IRQPHASESENCE); | |
915 | } else { | |
916 | irq_phase = 0; | |
917 | } | |
918 | ||
919 | //DEBUG(0, " irq_phase=0x%x\n", irq_phase); | |
920 | ||
921 | /* | |
922 | * timer interrupt handler (scsi vs timer interrupts) | |
923 | */ | |
924 | //DEBUG(0, " timercount=%d\n", data->TimerCount); | |
925 | if (data->TimerCount != 0) { | |
926 | //DEBUG(0, " stop timer\n"); | |
927 | nsp_index_write(base, TIMERCOUNT, 0); | |
928 | nsp_index_write(base, TIMERCOUNT, 0); | |
929 | data->TimerCount = 0; | |
930 | } | |
931 | ||
932 | if ((i_src & IRQSTATUS_MASK) == IRQSTATUS_TIMER && | |
933 | data->SelectionTimeOut == 0) { | |
934 | //DEBUG(0, " timer start\n"); | |
935 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR); | |
936 | return; | |
937 | } | |
938 | ||
939 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR | IRQCONTROL_FIFO_CLEAR); | |
940 | ||
941 | if (data->CurrentSC == NULL) { | |
942 | printk(KERN_DEBUG "%s: CurrentSC==NULL irq_status=0x%x phase=0x%x irq_phase=0x%x this can't be happen\n", __FUNCTION__, i_src, phase, irq_phase); | |
943 | return; | |
944 | } else { | |
945 | tmpSC = data->CurrentSC; | |
946 | target = tmpSC->device->id; | |
947 | lun = tmpSC->device->lun; | |
948 | sync_neg = &(data->Sync[target].SyncNegotiation); | |
949 | } | |
950 | ||
951 | /* | |
952 | * parse hardware SCSI irq reasons register | |
953 | */ | |
954 | if ((i_src & IRQSTATUS_SCSI) != 0) { | |
955 | if ((irq_phase & SCSI_RESET_IRQ) != 0) { | |
956 | printk(KERN_DEBUG " %s: bus reset (power off?)\n", __FUNCTION__); | |
957 | *sync_neg = SYNC_NOT_YET; | |
958 | data->CurrentSC = NULL; | |
959 | tmpSC->result = (DID_RESET << 16) | | |
960 | ((tmpSC->SCp.Message & 0xff) << 8) | | |
961 | ((tmpSC->SCp.Status & 0xff) << 0); | |
962 | tmpSC->scsi_done(tmpSC); | |
963 | return; | |
964 | } | |
965 | ||
966 | if ((irq_phase & RESELECT_IRQ) != 0) { | |
967 | DEBUG(0, " reselect\n"); | |
968 | nsp_write(base, IRQCONTROL, IRQCONTROL_RESELECT_CLEAR); | |
969 | if (nsp_reselected(tmpSC, data) != FALSE) { | |
970 | return; | |
971 | } | |
972 | } | |
973 | ||
974 | if ((irq_phase & (PHASE_CHANGE_IRQ | LATCHED_BUS_FREE)) == 0) { | |
975 | return; | |
976 | } | |
977 | } | |
978 | ||
979 | //show_phase(tmpSC); | |
980 | ||
981 | switch(tmpSC->SCp.phase) { | |
982 | case PH_SELSTART: | |
983 | //*sync_neg = SYNC_NOT_YET; | |
984 | if ((phase & BUSMON_BSY) == 0) { | |
985 | //DEBUG(0, " selection count=%d\n", data->SelectionTimeOut); | |
986 | if (data->SelectionTimeOut >= NSP_SELTIMEOUT) { | |
987 | DEBUG(0, " selection time out\n"); | |
988 | data->SelectionTimeOut = 0; | |
989 | nsp_index_write(base, SCSIBUSCTRL, 0); | |
990 | ||
991 | data->CurrentSC = NULL; | |
992 | tmpSC->result = DID_NO_CONNECT << 16; | |
993 | tmpSC->scsi_done(tmpSC); | |
994 | ||
995 | return; | |
996 | } | |
997 | data->SelectionTimeOut += 1; | |
998 | nsp_start_timer(tmpSC, data, 1000/51); | |
999 | return; | |
1000 | } | |
1001 | ||
1002 | /* attention assert */ | |
1003 | //DEBUG(0, " attention assert\n"); | |
1004 | data->SelectionTimeOut = 0; | |
1005 | tmpSC->SCp.phase = PH_SELECTED; | |
1006 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN); | |
1007 | udelay(1); | |
1008 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN | AUTODIRECTION | ACKENB); | |
1009 | return; | |
1010 | ||
1011 | break; | |
1012 | ||
1013 | case PH_RESELECT: | |
1014 | //DEBUG(0, " phase reselect\n"); | |
1015 | //*sync_neg = SYNC_NOT_YET; | |
1016 | if ((phase & BUSMON_PHASE_MASK) != BUSPHASE_MESSAGE_IN) { | |
1017 | ||
1018 | data->CurrentSC = NULL; | |
1019 | tmpSC->result = DID_ABORT << 16; | |
1020 | tmpSC->scsi_done(tmpSC); | |
1021 | return; | |
1022 | } | |
1023 | /* fall thru */ | |
1024 | default: | |
1025 | if ((i_src & (IRQSTATUS_SCSI | IRQSTATUS_FIFO)) == 0) { | |
1026 | return; | |
1027 | } | |
1028 | break; | |
1029 | } | |
1030 | ||
1031 | /* | |
1032 | * SCSI sequencer | |
1033 | */ | |
1034 | //DEBUG(0, " start scsi seq\n"); | |
1035 | ||
1036 | /* normal disconnect */ | |
1037 | if (((tmpSC->SCp.phase == PH_MSG_IN) || (tmpSC->SCp.phase == PH_MSG_OUT)) && | |
1038 | (irq_phase & LATCHED_BUS_FREE) != 0 ) { | |
1039 | DEBUG(0, " normal disconnect i_src=0x%x, phase=0x%x, irq_phase=0x%x\n", i_src, phase, irq_phase); | |
1040 | if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { /* all command complete and return status */ | |
1041 | //*sync_neg = SYNC_NOT_YET; | |
1042 | data->CurrentSC = NULL; | |
1043 | tmpSC->result = (DID_OK << 16) | | |
1044 | ((tmpSC->SCp.Message & 0xff) << 8) | | |
1045 | ((tmpSC->SCp.Status & 0xff) << 0); | |
1046 | DEBUG(0, " command complete result=0x%x\n", tmpSC->result); | |
1047 | tmpSC->scsi_done(tmpSC); | |
1048 | ||
1049 | return; | |
1050 | } | |
1051 | ||
1052 | return; | |
1053 | } | |
1054 | ||
1055 | ||
1056 | /* check unexpected bus free state */ | |
1057 | if (phase == 0) { | |
1058 | printk(KERN_DEBUG " %s: unexpected bus free. i_src=0x%x, phase=0x%x, irq_phase=0x%x\n", __FUNCTION__, i_src, phase, irq_phase); | |
1059 | ||
1060 | *sync_neg = SYNC_NOT_YET; | |
1061 | data->CurrentSC = NULL; | |
1062 | tmpSC->result = DID_ERROR << 16; | |
1063 | tmpSC->scsi_done(tmpSC); | |
1064 | return; | |
1065 | } | |
1066 | ||
1067 | switch (phase & BUSMON_PHASE_MASK) { | |
1068 | case BUSPHASE_COMMAND: | |
1069 | DEBUG(0, " BUSPHASE_COMMAND\n"); | |
1070 | if ((phase & BUSMON_REQ) == 0) { | |
1071 | DEBUG(0, " REQ == 0\n"); | |
1072 | return; | |
1073 | } | |
1074 | ||
1075 | tmpSC->SCp.phase = PH_COMMAND; | |
1076 | ||
1077 | nsp_nexus(tmpSC, data); | |
1078 | ||
1079 | /* write scsi command */ | |
1080 | DEBUG(0, " cmd_len=%d\n", tmpSC->cmd_len); | |
1081 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER); | |
1082 | for (i = 0; i < tmpSC->cmd_len; i++) { | |
1083 | nsp_index_write(base, COMMANDDATA, tmpSC->cmnd[i]); | |
1084 | } | |
1085 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER | AUTO_COMMAND_GO); | |
1086 | break; | |
1087 | ||
1088 | case BUSPHASE_DATA_OUT: | |
1089 | DEBUG(0, " BUSPHASE_DATA_OUT\n"); | |
1090 | ||
1091 | tmpSC->SCp.phase = PH_DATA; | |
1092 | tmpSC->SCp.have_data_in = IO_OUT; | |
1093 | ||
1094 | nsp_pio_write(tmpSC, data); | |
1095 | ||
1096 | break; | |
1097 | ||
1098 | case BUSPHASE_DATA_IN: | |
1099 | DEBUG(0, " BUSPHASE_DATA_IN\n"); | |
1100 | ||
1101 | tmpSC->SCp.phase = PH_DATA; | |
1102 | tmpSC->SCp.have_data_in = IO_IN; | |
1103 | ||
1104 | nsp_pio_read(tmpSC, data); | |
1105 | ||
1106 | break; | |
1107 | ||
1108 | case BUSPHASE_STATUS: | |
1109 | nsp_dataphase_bypass(tmpSC, data); | |
1110 | DEBUG(0, " BUSPHASE_STATUS\n"); | |
1111 | ||
1112 | tmpSC->SCp.phase = PH_STATUS; | |
1113 | ||
1114 | tmpSC->SCp.Status = nsp_index_read(base, SCSIDATAWITHACK); | |
1115 | DEBUG(0, " message=0x%x status=0x%x\n", tmpSC->SCp.Message, tmpSC->SCp.Status); | |
1116 | ||
1117 | break; | |
1118 | ||
1119 | case BUSPHASE_MESSAGE_OUT: | |
1120 | DEBUG(0, " BUSPHASE_MESSAGE_OUT\n"); | |
1121 | if ((phase & BUSMON_REQ) == 0) { | |
1122 | goto timer_out; | |
1123 | } | |
1124 | ||
1125 | tmpSC->SCp.phase = PH_MSG_OUT; | |
1126 | ||
1127 | data->MsgLen = i = 0; | |
1128 | data->MsgBuffer[i] = IDENTIFY(TRUE, lun); i++; | |
1129 | ||
1130 | if (*sync_neg == SYNC_NOT_YET) { | |
1131 | data->Sync[target].SyncPeriod = 0; | |
1132 | data->Sync[target].SyncOffset = 0; | |
1133 | ||
1134 | /**/ | |
1135 | data->MsgBuffer[i] = MSG_EXTENDED; i++; | |
1136 | data->MsgBuffer[i] = 3; i++; | |
1137 | data->MsgBuffer[i] = MSG_EXT_SDTR; i++; | |
1138 | data->MsgBuffer[i] = 0x0c; i++; | |
1139 | data->MsgBuffer[i] = 15; i++; | |
1140 | /**/ | |
1141 | } | |
1142 | data->MsgLen = i; | |
1143 | ||
1144 | nsp_msg(tmpSC, data); | |
1145 | show_message(data); | |
1146 | nsp_message_out(tmpSC, data); | |
1147 | break; | |
1148 | ||
1149 | case BUSPHASE_MESSAGE_IN: | |
1150 | nsp_dataphase_bypass(tmpSC, data); | |
1151 | DEBUG(0, " BUSPHASE_MESSAGE_IN\n"); | |
1152 | if ((phase & BUSMON_REQ) == 0) { | |
1153 | goto timer_out; | |
1154 | } | |
1155 | ||
1156 | tmpSC->SCp.phase = PH_MSG_IN; | |
1157 | nsp_message_in(tmpSC, data); | |
1158 | ||
1159 | /**/ | |
1160 | if (*sync_neg == SYNC_NOT_YET) { | |
1161 | //printk("%d,%d\n",target,lun); | |
1162 | ||
1163 | if (data->MsgLen >= 5 && | |
1164 | data->MsgBuffer[0] == MSG_EXTENDED && | |
1165 | data->MsgBuffer[1] == 3 && | |
1166 | data->MsgBuffer[2] == MSG_EXT_SDTR ) { | |
1167 | data->Sync[target].SyncPeriod = data->MsgBuffer[3]; | |
1168 | data->Sync[target].SyncOffset = data->MsgBuffer[4]; | |
1169 | //printk("sync ok, %d %d\n", data->MsgBuffer[3], data->MsgBuffer[4]); | |
1170 | *sync_neg = SYNC_OK; | |
1171 | } else { | |
1172 | data->Sync[target].SyncPeriod = 0; | |
1173 | data->Sync[target].SyncOffset = 0; | |
1174 | *sync_neg = SYNC_NG; | |
1175 | } | |
1176 | nsp_msg(tmpSC, data); | |
1177 | } | |
1178 | /**/ | |
1179 | ||
1180 | /* search last messeage byte */ | |
1181 | tmp = -1; | |
1182 | for (i = 0; i < data->MsgLen; i++) { | |
1183 | tmp = data->MsgBuffer[i]; | |
1184 | if (data->MsgBuffer[i] == MSG_EXTENDED) { | |
1185 | i += (1 + data->MsgBuffer[i+1]); | |
1186 | } | |
1187 | } | |
1188 | tmpSC->SCp.Message = tmp; | |
1189 | ||
1190 | DEBUG(0, " message=0x%x len=%d\n", tmpSC->SCp.Message, data->MsgLen); | |
1191 | show_message(data); | |
1192 | ||
1193 | break; | |
1194 | ||
1195 | case BUSPHASE_SELECT: | |
1196 | default: | |
1197 | DEBUG(0, " BUSPHASE other\n"); | |
1198 | ||
1199 | break; | |
1200 | } | |
1201 | ||
1202 | //DEBUG(0, "%s: out\n", __FUNCTION__); | |
1203 | return; | |
1204 | ||
1205 | timer_out: | |
1206 | nsp_start_timer(tmpSC, data, 1000/102); | |
1207 | return; | |
1208 | } | |
1209 | ||
1210 | #ifdef PCMCIA_DEBUG | |
1211 | #include "nsp_debug.c" | |
1212 | #endif /* DBG_SHOWCOMMAND */ | |
1213 | ||
1214 | /*----------------------------------------------------------------*/ | |
1215 | /* look for ninja3 card and init if found */ | |
1216 | /*----------------------------------------------------------------*/ | |
1217 | static struct Scsi_Host *__nsp_detect(Scsi_Host_Template *sht) | |
1218 | { | |
1219 | struct Scsi_Host *host; /* registered host structure */ | |
1220 | nsp_hw_data *data = &nsp_data; | |
1221 | ||
1222 | DEBUG(0, "%s: this_id=%d\n", __FUNCTION__, sht->this_id); | |
1223 | ||
1224 | request_region(data->BaseAddress, data->NumAddress, "nsp_cs"); | |
1225 | host = scsi_register(sht, 0); | |
1226 | if(host == NULL) | |
1227 | return NULL; | |
1228 | ||
1229 | host->unique_id = data->BaseAddress; | |
1230 | host->io_port = data->BaseAddress; | |
1231 | host->n_io_port = data->NumAddress; | |
1232 | host->irq = data->IrqNumber; | |
1233 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)) | |
1234 | host->base = data->MmioAddress; /* kernel 2.4 */ | |
1235 | #else | |
1236 | host->base = (char *)(data->MmioAddress); /* 2.2 */ | |
1237 | #endif | |
1238 | ||
1239 | spin_lock_init(&(data->Lock)); | |
1240 | ||
1241 | snprintf(data->nspinfo, | |
1242 | sizeof(data->nspinfo), | |
1243 | "NinjaSCSI-3/32Bi Driver $Revision: 1.1 $ IO:0x%04lx-0x%04lx MMIO(virt addr):0x%04lx IRQ:%02d", | |
1244 | host->io_port, host->io_port + host->n_io_port - 1, | |
1245 | host->base, | |
1246 | host->irq); | |
1247 | data->nspinfo[sizeof(data->nspinfo) - 1] = '\0'; | |
1248 | sht->name = data->nspinfo; | |
1249 | ||
1250 | DEBUG(0, "%s: end\n", __FUNCTION__); | |
1251 | ||
1252 | //MOD_INC_USE_COUNT; | |
1253 | ||
1254 | return host; | |
1255 | } | |
1256 | ||
1257 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) | |
1258 | static int nsp_detect(Scsi_Host_Template *sht) | |
1259 | { | |
1260 | return (__nsp_detect(sht) != NULL); | |
1261 | } | |
1262 | ||
1263 | static int nsp_release(struct Scsi_Host *shpnt) | |
1264 | { | |
1265 | //nsp_hw_data *data = &nsp_data; | |
1266 | ||
1267 | /* PCMCIA Card Service dose same things */ | |
1268 | //if (shpnt->irq) { | |
1269 | // free_irq(shpnt->irq, data); | |
1270 | //} | |
1271 | //if (shpnt->io_port) { | |
1272 | // release_region(shpnt->io_port, shpnt->n_io_port); | |
1273 | //} | |
1274 | ||
1275 | //MOD_DEC_USE_COUNT; | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | #endif | |
1280 | ||
1281 | /*----------------------------------------------------------------*/ | |
1282 | /* return info string */ | |
1283 | /*----------------------------------------------------------------*/ | |
1284 | static const char *nsp_info(struct Scsi_Host *shpnt) | |
1285 | { | |
1286 | nsp_hw_data *data = &nsp_data; | |
1287 | ||
1288 | return data->nspinfo; | |
1289 | } | |
1290 | ||
1291 | #undef SPRINTF | |
1292 | #define SPRINTF(args...) \ | |
1293 | do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0) | |
1294 | static int nsp_proc_info(struct Scsi_Host *host, char *buffer, | |
1295 | char **start, | |
1296 | off_t offset, | |
1297 | int length, | |
1298 | int inout) | |
1299 | { | |
1300 | int id; | |
1301 | char *pos = buffer; | |
1302 | int thislength; | |
1303 | int speed; | |
1304 | unsigned long flags; | |
1305 | nsp_hw_data *data = &nsp_data; | |
1306 | ||
1307 | if (inout) { | |
1308 | return -EINVAL; | |
1309 | } | |
1310 | ||
1311 | SPRINTF("NinjaSCSI status\n\n"); | |
1312 | SPRINTF("Driver version: $Revision: 1.1 $\n"); | |
1313 | SPRINTF("SCSI host No.: %d\n", host->host_no); | |
1314 | SPRINTF("IRQ: %d\n", host->irq); | |
1315 | SPRINTF("IO: 0x%lx-0x%lx\n", host->io_port, host->io_port + host->n_io_port - 1); | |
1316 | SPRINTF("MMIO(virtual address): 0x%lx\n", host->base); | |
1317 | SPRINTF("sg_tablesize: %d\n", host->sg_tablesize); | |
1318 | ||
1319 | SPRINTF("burst transfer mode: "); | |
1320 | switch (nsp_burst_mode) { | |
1321 | case BURST_IO8: | |
1322 | SPRINTF("io8"); | |
1323 | break; | |
1324 | case BURST_IO32: | |
1325 | SPRINTF("io32"); | |
1326 | break; | |
1327 | case BURST_MEM32: | |
1328 | SPRINTF("mem32"); | |
1329 | break; | |
1330 | default: | |
1331 | SPRINTF("???"); | |
1332 | break; | |
1333 | } | |
1334 | SPRINTF("\n"); | |
1335 | ||
1336 | ||
1337 | spin_lock_irqsave(&(data->Lock), flags); | |
1338 | SPRINTF("CurrentSC: 0x%p\n\n", data->CurrentSC); | |
1339 | spin_unlock_irqrestore(&(data->Lock), flags); | |
1340 | ||
1341 | SPRINTF("SDTR status\n"); | |
1342 | for(id = 0; id < N_TARGET; id++) { | |
1343 | ||
1344 | SPRINTF("id %d: ", id); | |
1345 | ||
1346 | if (id == host->this_id) { | |
1347 | SPRINTF("----- NinjaSCSI-3 host adapter\n"); | |
1348 | continue; | |
1349 | } | |
1350 | ||
1351 | switch(data->Sync[id].SyncNegotiation) { | |
1352 | case SYNC_OK: | |
1353 | SPRINTF(" sync"); | |
1354 | break; | |
1355 | case SYNC_NG: | |
1356 | SPRINTF("async"); | |
1357 | break; | |
1358 | case SYNC_NOT_YET: | |
1359 | SPRINTF(" none"); | |
1360 | break; | |
1361 | default: | |
1362 | SPRINTF("?????"); | |
1363 | break; | |
1364 | } | |
1365 | ||
1366 | if (data->Sync[id].SyncPeriod != 0) { | |
1367 | speed = 1000000 / (data->Sync[id].SyncPeriod * 4); | |
1368 | ||
1369 | SPRINTF(" transfer %d.%dMB/s, offset %d", | |
1370 | speed / 1000, | |
1371 | speed % 1000, | |
1372 | data->Sync[id].SyncOffset | |
1373 | ); | |
1374 | } | |
1375 | SPRINTF("\n"); | |
1376 | } | |
1377 | ||
1378 | thislength = pos - (buffer + offset); | |
1379 | ||
1380 | if(thislength < 0) { | |
1381 | *start = 0; | |
1382 | return 0; | |
1383 | } | |
1384 | ||
1385 | ||
1386 | thislength = MIN(thislength, length); | |
1387 | *start = buffer + offset; | |
1388 | ||
1389 | return thislength; | |
1390 | } | |
1391 | #undef SPRINTF | |
1392 | ||
1393 | ||
1394 | /*static int nsp_eh_strategy(struct Scsi_Host *Shost) | |
1395 | { | |
1396 | return FAILED; | |
1397 | }*/ | |
1398 | ||
1399 | /* | |
1400 | static int nsp_eh_abort(Scsi_Cmnd *SCpnt) | |
1401 | { | |
1402 | DEBUG(0, "%s: SCpnt=0x%p\n", __FUNCTION__, SCpnt); | |
1403 | ||
1404 | return nsp_eh_bus_reset(SCpnt); | |
1405 | }*/ | |
1406 | ||
1407 | /* | |
1408 | static int nsp_eh_device_reset(Scsi_Cmnd *SCpnt) | |
1409 | { | |
1410 | DEBUG(0, "%s: SCpnt=0x%p\n", __FUNCTION__, SCpnt); | |
1411 | ||
1412 | return FAILED; | |
1413 | }*/ | |
1414 | ||
1415 | static int nsp_eh_bus_reset(Scsi_Cmnd *SCpnt) | |
1416 | { | |
1417 | nsp_hw_data *data = &nsp_data; | |
1418 | unsigned int base = SCpnt->device->host->io_port; | |
1419 | int i; | |
1420 | ||
1421 | DEBUG(0, "%s: SCpnt=0x%p base=0x%x\n", __FUNCTION__, SCpnt, base); | |
1422 | ||
1423 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); | |
1424 | ||
1425 | nsp_index_write(base, SCSIBUSCTRL, SCSI_RST); | |
1426 | mdelay(100); /* 100ms */ | |
1427 | nsp_index_write(base, SCSIBUSCTRL, 0); | |
1428 | for(i = 0; i < 5; i++) { | |
1429 | nsp_index_read(base, IRQPHASESENCE); /* dummy read */ | |
1430 | } | |
1431 | ||
1432 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); | |
1433 | ||
1434 | nsphw_init_sync(data); | |
1435 | ||
1436 | return SUCCESS; | |
1437 | } | |
1438 | ||
1439 | static int nsp_eh_host_reset(Scsi_Cmnd *SCpnt) | |
1440 | { | |
1441 | nsp_hw_data *data = &nsp_data; | |
1442 | ||
1443 | DEBUG(0, "%s:\n", __FUNCTION__); | |
1444 | ||
1445 | nsphw_init(data); | |
1446 | ||
1447 | return SUCCESS; | |
1448 | } | |
1449 | ||
1450 | ||
1451 | /********************************************************************** | |
1452 | PCMCIA functions | |
1453 | **********************************************************************/ | |
1454 | ||
1455 | /*====================================================================== | |
1456 | nsp_cs_attach() creates an "instance" of the driver, allocating | |
1457 | local data structures for one device. The device is registered | |
1458 | with Card Services. | |
1459 | ||
1460 | The dev_link structure is initialized, but we don't actually | |
1461 | configure the card at this point -- we wait until we receive a | |
1462 | card insertion event. | |
1463 | ======================================================================*/ | |
1464 | static dev_link_t *nsp_cs_attach(void) | |
1465 | { | |
1466 | scsi_info_t *info; | |
1467 | client_reg_t client_reg; | |
1468 | dev_link_t *link; | |
1469 | int ret, i; | |
1470 | ||
1471 | DEBUG(0, "%s:\n", __FUNCTION__); | |
1472 | ||
1473 | /* Create new SCSI device */ | |
1474 | info = kmalloc(sizeof(*info), GFP_KERNEL); | |
1475 | if (!info) { return NULL; } | |
1476 | memset(info, 0, sizeof(*info)); | |
1477 | link = &info->link; | |
1478 | link->priv = info; | |
1479 | ||
1480 | /* Initialize the dev_link_t structure */ | |
1481 | link->release.function = &nsp_cs_release; | |
1482 | link->release.data = (u_long)link; | |
1483 | ||
1484 | /* The io structure describes IO port mapping */ | |
1485 | link->io.NumPorts1 = 0x10; | |
1486 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
1487 | link->io.IOAddrLines = 10; /* not used */ | |
1488 | ||
1489 | /* Interrupt setup */ | |
1490 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
1491 | link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID; | |
1492 | if (irq_list[0] == -1) { | |
1493 | link->irq.IRQInfo2 = irq_mask; | |
1494 | } else { | |
1495 | for (i = 0; i < 4; i++) { | |
1496 | link->irq.IRQInfo2 |= 1 << irq_list[i]; | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | /* IRQ \e$B$N3NJ]$O$3$3$G\e(B PCMCIA \e$B$N4X?t$rMQ$$$F9T$J$&$N$G\e(B | |
1501 | * host->hostdata \e$B$r\e(B irq.Instance \e$B$KBeF~$G$-$J$$!#\e(B | |
1502 | * host->hostdata \e$B$,;H$($l$PJ#?t$N\e(B NinjaSCSI \e$B$,\e(B | |
1503 | * \e$B;HMQ$G$-$k$N$@$,!#\e(B | |
1504 | */ | |
1505 | link->irq.Handler = &nspintr; | |
1506 | link->irq.Instance = &nsp_data; | |
1507 | link->irq.Attributes |= (SA_SHIRQ | SA_SAMPLE_RANDOM); | |
1508 | ||
1509 | /* General socket configuration */ | |
1510 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1511 | link->conf.Vcc = 50; | |
1512 | link->conf.IntType = INT_MEMORY_AND_IO; | |
1513 | link->conf.Present = PRESENT_OPTION; | |
1514 | ||
1515 | ||
1516 | /* Register with Card Services */ | |
1517 | link->next = dev_list; | |
1518 | dev_list = link; | |
1519 | client_reg.dev_info = &dev_info; | |
1520 | client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE; | |
1521 | client_reg.EventMask = | |
1522 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | | |
1523 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | | |
1524 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME ; | |
1525 | client_reg.event_handler = &nsp_cs_event; | |
1526 | client_reg.Version = 0x0210; | |
1527 | client_reg.event_callback_args.client_data = link; | |
1528 | ret = CardServices(RegisterClient, &link->handle, &client_reg); | |
1529 | if (ret != CS_SUCCESS) { | |
1530 | cs_error(link->handle, RegisterClient, ret); | |
1531 | nsp_cs_detach(link); | |
1532 | return NULL; | |
1533 | } | |
1534 | ||
1535 | return link; | |
1536 | } /* nsp_cs_attach */ | |
1537 | ||
1538 | ||
1539 | /*====================================================================== | |
1540 | This deletes a driver "instance". The device is de-registered | |
1541 | with Card Services. If it has been released, all local data | |
1542 | structures are freed. Otherwise, the structures will be freed | |
1543 | when the device is released. | |
1544 | ======================================================================*/ | |
1545 | static void nsp_cs_detach(dev_link_t *link) | |
1546 | { | |
1547 | dev_link_t **linkp; | |
1548 | ||
1549 | DEBUG(0, "%s(0x%p)\n", __FUNCTION__, link); | |
1550 | ||
1551 | /* Locate device structure */ | |
1552 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) { | |
1553 | if (*linkp == link) { | |
1554 | break; | |
1555 | } | |
1556 | } | |
1557 | if (*linkp == NULL) { | |
1558 | return; | |
1559 | } | |
1560 | ||
1561 | del_timer(&link->release); | |
1562 | if (link->state & DEV_CONFIG) { | |
1563 | nsp_cs_release((u_long)link); | |
1564 | if (link->state & DEV_STALE_CONFIG) { | |
1565 | link->state |= DEV_STALE_LINK; | |
1566 | return; | |
1567 | } | |
1568 | } | |
1569 | ||
1570 | /* Break the link with Card Services */ | |
1571 | if (link->handle) { | |
1572 | CardServices(DeregisterClient, link->handle); | |
1573 | } | |
1574 | ||
1575 | /* Unlink device structure, free bits */ | |
1576 | *linkp = link->next; | |
1577 | kfree(link->priv); | |
1578 | link->priv = NULL; | |
1579 | ||
1580 | } /* nsp_cs_detach */ | |
1581 | ||
1582 | ||
1583 | /*====================================================================== | |
1584 | nsp_cs_config() is scheduled to run after a CARD_INSERTION event | |
1585 | is received, to configure the PCMCIA socket, and to make the | |
1586 | ethernet device available to the system. | |
1587 | ======================================================================*/ | |
1588 | #define CS_CHECK(fn, args...) \ | |
1589 | while ((last_ret=CardServices(last_fn=(fn),args))!=0) goto cs_failed | |
1590 | #define CFG_CHECK(fn, args...) \ | |
1591 | if (CardServices(fn, args) != 0) goto next_entry | |
1592 | /*====================================================================*/ | |
1593 | ||
1594 | static void nsp_cs_config(dev_link_t *link) | |
1595 | { | |
1596 | client_handle_t handle = link->handle; | |
1597 | scsi_info_t *info = link->priv; | |
1598 | tuple_t tuple; | |
1599 | cisparse_t parse; | |
1600 | int last_ret, last_fn; | |
1601 | u_char tuple_data[64]; | |
1602 | config_info_t conf; | |
1603 | win_req_t req; | |
1604 | memreq_t map; | |
1605 | cistpl_cftable_entry_t dflt = { 0 }; | |
1606 | ||
1607 | struct Scsi_Host *host; | |
1608 | nsp_hw_data *data = &nsp_data; | |
1609 | ||
1610 | ||
1611 | DEBUG(0, "%s: in\n", __FUNCTION__); | |
1612 | ||
1613 | tuple.DesiredTuple = CISTPL_CONFIG; | |
1614 | tuple.Attributes = 0; | |
1615 | tuple.TupleData = tuple_data; | |
1616 | tuple.TupleDataMax = sizeof(tuple_data); | |
1617 | tuple.TupleOffset = 0; | |
1618 | CS_CHECK(GetFirstTuple, handle, &tuple); | |
1619 | CS_CHECK(GetTupleData, handle, &tuple); | |
1620 | CS_CHECK(ParseTuple, handle, &tuple, &parse); | |
1621 | link->conf.ConfigBase = parse.config.base; | |
1622 | link->conf.Present = parse.config.rmask[0]; | |
1623 | ||
1624 | /* Configure card */ | |
1625 | link->state |= DEV_CONFIG; | |
1626 | ||
1627 | /* Look up the current Vcc */ | |
1628 | CS_CHECK(GetConfigurationInfo, handle, &conf); | |
1629 | link->conf.Vcc = conf.Vcc; | |
1630 | ||
1631 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
1632 | CS_CHECK(GetFirstTuple, handle, &tuple); | |
1633 | while (1) { | |
1634 | cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); | |
1635 | ||
1636 | CFG_CHECK(GetTupleData, handle, &tuple); | |
1637 | CFG_CHECK(ParseTuple, handle, &tuple, &parse); | |
1638 | ||
1639 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) { dflt = *cfg; } | |
1640 | if (cfg->index == 0) { goto next_entry; } | |
1641 | link->conf.ConfigIndex = cfg->index; | |
1642 | ||
1643 | /* Does this card need audio output? */ | |
1644 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { | |
1645 | link->conf.Attributes |= CONF_ENABLE_SPKR; | |
1646 | link->conf.Status = CCSR_AUDIO_ENA; | |
1647 | } | |
1648 | ||
1649 | /* Use power settings for Vcc and Vpp if present */ | |
1650 | /* Note that the CIS values need to be rescaled */ | |
1651 | if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) { | |
1652 | if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000) { | |
1653 | goto next_entry; | |
1654 | } | |
1655 | } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) { | |
1656 | if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000) { | |
1657 | goto next_entry; | |
1658 | } | |
1659 | } | |
1660 | ||
1661 | if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) { | |
1662 | link->conf.Vpp1 = link->conf.Vpp2 = | |
1663 | cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; | |
1664 | } else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM)) { | |
1665 | link->conf.Vpp1 = link->conf.Vpp2 = | |
1666 | dflt.vpp1.param[CISTPL_POWER_VNOM]/10000; | |
1667 | } | |
1668 | ||
1669 | /* Do we need to allocate an interrupt? */ | |
1670 | if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) { | |
1671 | link->conf.Attributes |= CONF_ENABLE_IRQ; | |
1672 | } | |
1673 | ||
1674 | /* IO window settings */ | |
1675 | link->io.NumPorts1 = link->io.NumPorts2 = 0; | |
1676 | if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { | |
1677 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; | |
1678 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
1679 | if (!(io->flags & CISTPL_IO_8BIT)) | |
1680 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; | |
1681 | if (!(io->flags & CISTPL_IO_16BIT)) | |
1682 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
1683 | link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; | |
1684 | link->io.BasePort1 = io->win[0].base; | |
1685 | link->io.NumPorts1 = io->win[0].len; | |
1686 | if (io->nwin > 1) { | |
1687 | link->io.Attributes2 = link->io.Attributes1; | |
1688 | link->io.BasePort2 = io->win[1].base; | |
1689 | link->io.NumPorts2 = io->win[1].len; | |
1690 | } | |
1691 | /* This reserves IO space but doesn't actually enable it */ | |
1692 | CFG_CHECK(RequestIO, link->handle, &link->io); | |
1693 | } | |
1694 | ||
1695 | if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) { | |
1696 | cistpl_mem_t *mem = | |
1697 | (cfg->mem.nwin) ? &cfg->mem : &dflt.mem; | |
1698 | req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM; | |
1699 | req.Attributes |= WIN_ENABLE; | |
1700 | req.Base = mem->win[0].host_addr; | |
1701 | req.Size = mem->win[0].len; | |
1702 | if (req.Size < 0x1000) | |
1703 | req.Size = 0x1000; | |
1704 | req.AccessSpeed = 0; | |
1705 | link->win = (window_handle_t)link->handle; | |
1706 | CFG_CHECK(RequestWindow, &link->win, &req); | |
1707 | map.Page = 0; map.CardOffset = mem->win[0].card_addr; | |
1708 | CFG_CHECK(MapMemPage, link->win, &map); | |
1709 | ||
1710 | data->MmioAddress = (u_long)ioremap_nocache(req.Base, req.Size); | |
1711 | } | |
1712 | /* If we got this far, we're cool! */ | |
1713 | break; | |
1714 | ||
1715 | next_entry: | |
1716 | DEBUG(0, "%s: next\n", __FUNCTION__); | |
1717 | ||
1718 | if (link->io.NumPorts1) | |
1719 | CardServices(ReleaseIO, link->handle, &link->io); | |
1720 | CS_CHECK(GetNextTuple, handle, &tuple); | |
1721 | } | |
1722 | ||
1723 | if (link->conf.Attributes & CONF_ENABLE_IRQ) | |
1724 | CS_CHECK(RequestIRQ, link->handle, &link->irq); | |
1725 | CS_CHECK(RequestConfiguration, handle, &link->conf); | |
1726 | ||
1727 | if (free_ports) { | |
1728 | if (link->io.BasePort1) | |
1729 | release_region(link->io.BasePort1, link->io.NumPorts1); | |
1730 | if (link->io.BasePort2) | |
1731 | release_region(link->io.BasePort2, link->io.NumPorts2); | |
1732 | } | |
1733 | ||
1734 | /* Set port and IRQ */ | |
1735 | data->BaseAddress = link->io.BasePort1; | |
1736 | data->NumAddress = link->io.NumPorts1; | |
1737 | data->IrqNumber = link->irq.AssignedIRQ; | |
1738 | ||
1739 | DEBUG(0, "%s: I/O[0x%x+0x%x] IRQ %d\n", | |
1740 | __FUNCTION__, data->BaseAddress, data->NumAddress, data->IrqNumber); | |
1741 | ||
1742 | if(nsphw_init(data) == FALSE) { | |
1743 | goto cs_failed; | |
1744 | } | |
1745 | ||
1746 | host = __nsp_detect(&nsp_driver_template); | |
1747 | if (!host) | |
1748 | goto cs_failed; | |
1749 | ||
1750 | sprintf(info->node.dev_name, "scsi%d", host->host_no); | |
1751 | link->dev = &info->node; | |
1752 | info->host = host; | |
1753 | ||
1754 | /* Finally, report what we've done */ | |
1755 | printk(KERN_INFO "nsp_cs: index 0x%02x: Vcc %d.%d", | |
1756 | link->conf.ConfigIndex, | |
1757 | link->conf.Vcc/10, link->conf.Vcc%10); | |
1758 | if (link->conf.Vpp1) { | |
1759 | printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10); | |
1760 | } | |
1761 | if (link->conf.Attributes & CONF_ENABLE_IRQ) { | |
1762 | printk(", irq %d", link->irq.AssignedIRQ); | |
1763 | } | |
1764 | if (link->io.NumPorts1) { | |
1765 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, | |
1766 | link->io.BasePort1+link->io.NumPorts1-1); | |
1767 | } | |
1768 | if (link->io.NumPorts2) | |
1769 | printk(" & 0x%04x-0x%04x", link->io.BasePort2, | |
1770 | link->io.BasePort2+link->io.NumPorts2-1); | |
1771 | if (link->win) | |
1772 | printk(", mem 0x%06lx-0x%06lx", req.Base, | |
1773 | req.Base+req.Size-1); | |
1774 | printk("\n"); | |
1775 | ||
1776 | scsi_add_host(host, NULL); | |
1777 | link->state &= ~DEV_CONFIG_PENDING; | |
1778 | return; | |
1779 | ||
1780 | cs_failed: | |
1781 | cs_error(link->handle, last_fn, last_ret); | |
1782 | nsp_cs_release((u_long)link); | |
1783 | return; | |
1784 | ||
1785 | } /* nsp_cs_config */ | |
1786 | #undef CS_CHECK | |
1787 | #undef CFG_CHECK | |
1788 | ||
1789 | /*====================================================================== | |
1790 | After a card is removed, nsp_cs_release() will unregister the net | |
1791 | device, and release the PCMCIA configuration. If the device is | |
1792 | still open, this will be postponed until it is closed. | |
1793 | ======================================================================*/ | |
1794 | static void nsp_cs_release(u_long arg) | |
1795 | { | |
1796 | dev_link_t *link = (dev_link_t *)arg; | |
1797 | scsi_info_t *info = link->priv; | |
1798 | ||
1799 | DEBUG(0, "%s(0x%p)\n", __FUNCTION__, link); | |
1800 | ||
1801 | /* | |
1802 | * If the device is currently in use, we won't release until it | |
1803 | * is actually closed. | |
1804 | */ | |
1805 | if (link->open) { | |
1806 | DEBUG(1, "nsp_cs: release postponed, '%s' still open\n", | |
1807 | link->dev->dev_name); | |
1808 | link->state |= DEV_STALE_CONFIG; | |
1809 | return; | |
1810 | } | |
1811 | ||
1812 | /* Unlink the device chain */ | |
1813 | #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,2)) | |
1814 | scsi_unregister_module(MODULE_SCSI_HA, &nsp_driver_template); | |
1815 | #else | |
1816 | scsi_remove_host(info->host); | |
1817 | scsi_unregister(info->host); | |
1818 | #endif | |
1819 | link->dev = NULL; | |
1820 | ||
1821 | if (link->win) { | |
1822 | iounmap((void *)(nsp_data.MmioAddress)); | |
1823 | CardServices(ReleaseWindow, link->win); | |
1824 | } | |
1825 | CardServices(ReleaseConfiguration, link->handle); | |
1826 | if (link->io.NumPorts1) { | |
1827 | CardServices(ReleaseIO, link->handle, &link->io); | |
1828 | } | |
1829 | if (link->irq.AssignedIRQ) { | |
1830 | CardServices(ReleaseIRQ, link->handle, &link->irq); | |
1831 | } | |
1832 | link->state &= ~DEV_CONFIG; | |
1833 | ||
1834 | if (link->state & DEV_STALE_LINK) { | |
1835 | nsp_cs_detach(link); | |
1836 | } | |
1837 | } /* nsp_cs_release */ | |
1838 | ||
1839 | /*====================================================================== | |
1840 | ||
1841 | The card status event handler. Mostly, this schedules other | |
1842 | stuff to run after an event is received. A CARD_REMOVAL event | |
1843 | also sets some flags to discourage the net drivers from trying | |
1844 | to talk to the card any more. | |
1845 | ||
1846 | When a CARD_REMOVAL event is received, we immediately set a flag | |
1847 | to block future accesses to this device. All the functions that | |
1848 | actually access the device should check this flag to make sure | |
1849 | the card is still present. | |
1850 | ||
1851 | ======================================================================*/ | |
1852 | static int nsp_cs_event(event_t event, | |
1853 | int priority, | |
1854 | event_callback_args_t *args) | |
1855 | { | |
1856 | dev_link_t *link = args->client_data; | |
1857 | scsi_info_t *info = link->priv; | |
1858 | Scsi_Cmnd tmp; | |
1859 | ||
1860 | DEBUG(1, "%s(0x%06x)\n", __FUNCTION__, event); | |
1861 | ||
1862 | switch (event) { | |
1863 | case CS_EVENT_CARD_REMOVAL: | |
1864 | DEBUG(0, " event: remove\n"); | |
1865 | link->state &= ~DEV_PRESENT; | |
1866 | if (link->state & DEV_CONFIG) { | |
1867 | ((scsi_info_t *)link->priv)->stop = 1; | |
1868 | mod_timer(&link->release, jiffies + HZ/20); | |
1869 | } | |
1870 | break; | |
1871 | ||
1872 | case CS_EVENT_CARD_INSERTION: | |
1873 | DEBUG(0, " event: insert\n"); | |
1874 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
1875 | nsp_cs_config(link); | |
1876 | break; | |
1877 | ||
1878 | case CS_EVENT_PM_SUSPEND: | |
1879 | link->state |= DEV_SUSPEND; | |
1880 | /* Fall through... */ | |
1881 | case CS_EVENT_RESET_PHYSICAL: | |
1882 | /* Mark the device as stopped, to block IO until later */ | |
1883 | info->stop = 1; | |
1884 | if (link->state & DEV_CONFIG) { | |
1885 | CardServices(ReleaseConfiguration, link->handle); | |
1886 | } | |
1887 | break; | |
1888 | ||
1889 | case CS_EVENT_PM_RESUME: | |
1890 | link->state &= ~DEV_SUSPEND; | |
1891 | /* Fall through... */ | |
1892 | case CS_EVENT_CARD_RESET: | |
1893 | DEBUG(0, " event: reset\n"); | |
1894 | if (link->state & DEV_CONFIG) { | |
1895 | CardServices(RequestConfiguration, link->handle, &link->conf); | |
1896 | } | |
1897 | info->stop = 0; | |
1898 | ||
1899 | tmp.device->host = info->host; | |
1900 | nsp_eh_host_reset(&tmp); | |
1901 | nsp_eh_bus_reset(&tmp); | |
1902 | ||
1903 | break; | |
1904 | ||
1905 | default: | |
1906 | DEBUG(0, " event: unknown\n"); | |
1907 | break; | |
1908 | } | |
1909 | DEBUG(0, "%s: end\n", __FUNCTION__); | |
1910 | return 0; | |
1911 | } /* nsp_cs_event */ | |
1912 | ||
1913 | static struct pcmcia_driver nsp_driver = { | |
1914 | .owner = THIS_MODULE, | |
1915 | .drv = { | |
1916 | .name = "nsp_cs", | |
1917 | }, | |
1918 | .attach = nsp_cs_attach, | |
1919 | .detach = nsp_cs_detach, | |
1920 | }; | |
1921 | ||
1922 | static int __init nsp_cs_init(void) | |
1923 | { | |
1924 | return pcmcia_register_driver(&nsp_driver); | |
1925 | } | |
1926 | ||
1927 | ||
1928 | static void __exit nsp_cs_exit(void) | |
1929 | { | |
1930 | pcmcia_unregister_driver(&nsp_driver); | |
1931 | ||
1932 | /* XXX: this really needs to move into generic code.. */ | |
1933 | while (dev_list != NULL) { | |
1934 | if (dev_list->state & DEV_CONFIG) { | |
1935 | nsp_cs_release((u_long)dev_list); | |
1936 | } | |
1937 | nsp_cs_detach(dev_list); | |
1938 | } | |
1939 | } | |
1940 | ||
1941 | module_init(nsp_cs_init) | |
1942 | module_exit(nsp_cs_exit) |