Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #include <pcmcia/cs_types.h> |
| 55 | #include <pcmcia/cs.h> |
| 56 | #include <pcmcia/cistpl.h> |
| 57 | #include <pcmcia/cisreg.h> |
| 58 | #include <pcmcia/ds.h> |
| 59 | |
| 60 | #include "nsp_cs.h" |
| 61 | |
| 62 | MODULE_AUTHOR("YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>"); |
| 63 | MODULE_DESCRIPTION("WorkBit NinjaSCSI-3 / NinjaSCSI-32Bi(16bit) PCMCIA SCSI host adapter module $Revision: 1.23 $"); |
| 64 | MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); |
| 65 | #ifdef MODULE_LICENSE |
| 66 | MODULE_LICENSE("GPL"); |
| 67 | #endif |
| 68 | |
| 69 | #include "nsp_io.h" |
| 70 | |
| 71 | /*====================================================================*/ |
| 72 | /* Parameters that can be set with 'insmod' */ |
| 73 | |
| 74 | static int nsp_burst_mode = BURST_MEM32; |
| 75 | module_param(nsp_burst_mode, int, 0); |
| 76 | MODULE_PARM_DESC(nsp_burst_mode, "Burst transfer mode (0=io8, 1=io32, 2=mem32(default))"); |
| 77 | |
| 78 | /* Release IO ports after configuration? */ |
| 79 | static int free_ports = 0; |
| 80 | module_param(free_ports, bool, 0); |
| 81 | MODULE_PARM_DESC(free_ports, "Release IO ports after configuration? (default: 0 (=no))"); |
| 82 | |
| 83 | /* /usr/src/linux/drivers/scsi/hosts.h */ |
| 84 | static Scsi_Host_Template nsp_driver_template = { |
| 85 | .proc_name = "nsp_cs", |
| 86 | .proc_info = nsp_proc_info, |
| 87 | .name = "WorkBit NinjaSCSI-3/32Bi(16bit)", |
| 88 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) |
| 89 | .detect = nsp_detect_old, |
| 90 | .release = nsp_release_old, |
| 91 | #endif |
| 92 | .info = nsp_info, |
| 93 | .queuecommand = nsp_queuecommand, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | /* .eh_abort_handler = nsp_eh_abort,*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | .eh_bus_reset_handler = nsp_eh_bus_reset, |
| 96 | .eh_host_reset_handler = nsp_eh_host_reset, |
| 97 | .can_queue = 1, |
| 98 | .this_id = NSP_INITIATOR_ID, |
| 99 | .sg_tablesize = SG_ALL, |
| 100 | .cmd_per_lun = 1, |
| 101 | .use_clustering = DISABLE_CLUSTERING, |
| 102 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,2)) |
| 103 | .use_new_eh_code = 1, |
| 104 | #endif |
| 105 | }; |
| 106 | |
| 107 | static dev_link_t *dev_list = NULL; |
| 108 | static dev_info_t dev_info = {"nsp_cs"}; |
| 109 | |
| 110 | static nsp_hw_data nsp_data_base; /* attach <-> detect glue */ |
| 111 | |
| 112 | |
| 113 | |
| 114 | /* |
| 115 | * debug, error print |
| 116 | */ |
| 117 | #ifndef NSP_DEBUG |
| 118 | # define NSP_DEBUG_MASK 0x000000 |
| 119 | # define nsp_msg(type, args...) nsp_cs_message("", 0, (type), args) |
| 120 | # define nsp_dbg(mask, args...) /* */ |
| 121 | #else |
| 122 | # define NSP_DEBUG_MASK 0xffffff |
| 123 | # define nsp_msg(type, args...) \ |
| 124 | nsp_cs_message (__FUNCTION__, __LINE__, (type), args) |
| 125 | # define nsp_dbg(mask, args...) \ |
| 126 | nsp_cs_dmessage(__FUNCTION__, __LINE__, (mask), args) |
| 127 | #endif |
| 128 | |
| 129 | #define NSP_DEBUG_QUEUECOMMAND BIT(0) |
| 130 | #define NSP_DEBUG_REGISTER BIT(1) |
| 131 | #define NSP_DEBUG_AUTOSCSI BIT(2) |
| 132 | #define NSP_DEBUG_INTR BIT(3) |
| 133 | #define NSP_DEBUG_SGLIST BIT(4) |
| 134 | #define NSP_DEBUG_BUSFREE BIT(5) |
| 135 | #define NSP_DEBUG_CDB_CONTENTS BIT(6) |
| 136 | #define NSP_DEBUG_RESELECTION BIT(7) |
| 137 | #define NSP_DEBUG_MSGINOCCUR BIT(8) |
| 138 | #define NSP_DEBUG_EEPROM BIT(9) |
| 139 | #define NSP_DEBUG_MSGOUTOCCUR BIT(10) |
| 140 | #define NSP_DEBUG_BUSRESET BIT(11) |
| 141 | #define NSP_DEBUG_RESTART BIT(12) |
| 142 | #define NSP_DEBUG_SYNC BIT(13) |
| 143 | #define NSP_DEBUG_WAIT BIT(14) |
| 144 | #define NSP_DEBUG_TARGETFLAG BIT(15) |
| 145 | #define NSP_DEBUG_PROC BIT(16) |
| 146 | #define NSP_DEBUG_INIT BIT(17) |
| 147 | #define NSP_DEBUG_DATA_IO BIT(18) |
| 148 | #define NSP_SPECIAL_PRINT_REGISTER BIT(20) |
| 149 | |
| 150 | #define NSP_DEBUG_BUF_LEN 150 |
| 151 | |
| 152 | static void nsp_cs_message(const char *func, int line, char *type, char *fmt, ...) |
| 153 | { |
| 154 | va_list args; |
| 155 | char buf[NSP_DEBUG_BUF_LEN]; |
| 156 | |
| 157 | va_start(args, fmt); |
| 158 | vsnprintf(buf, sizeof(buf), fmt, args); |
| 159 | va_end(args); |
| 160 | |
| 161 | #ifndef NSP_DEBUG |
| 162 | printk("%snsp_cs: %s\n", type, buf); |
| 163 | #else |
| 164 | printk("%snsp_cs: %s (%d): %s\n", type, func, line, buf); |
| 165 | #endif |
| 166 | } |
| 167 | |
| 168 | #ifdef NSP_DEBUG |
| 169 | static void nsp_cs_dmessage(const char *func, int line, int mask, char *fmt, ...) |
| 170 | { |
| 171 | va_list args; |
| 172 | char buf[NSP_DEBUG_BUF_LEN]; |
| 173 | |
| 174 | va_start(args, fmt); |
| 175 | vsnprintf(buf, sizeof(buf), fmt, args); |
| 176 | va_end(args); |
| 177 | |
| 178 | if (mask & NSP_DEBUG_MASK) { |
| 179 | printk("nsp_cs-debug: 0x%x %s (%d): %s\n", mask, func, line, buf); |
| 180 | } |
| 181 | } |
| 182 | #endif |
| 183 | |
| 184 | /***********************************************************/ |
| 185 | |
| 186 | /*==================================================== |
| 187 | * Clenaup parameters and call done() functions. |
| 188 | * You must be set SCpnt->result before call this function. |
| 189 | */ |
| 190 | static void nsp_scsi_done(Scsi_Cmnd *SCpnt) |
| 191 | { |
| 192 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 193 | |
| 194 | data->CurrentSC = NULL; |
| 195 | |
| 196 | SCpnt->scsi_done(SCpnt); |
| 197 | } |
| 198 | |
| 199 | static int nsp_queuecommand(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) |
| 200 | { |
| 201 | #ifdef NSP_DEBUG |
| 202 | /*unsigned int host_id = SCpnt->device->host->this_id;*/ |
| 203 | /*unsigned int base = SCpnt->device->host->io_port;*/ |
Jeff Garzik | 422c0d6 | 2005-10-24 18:05:09 -0400 | [diff] [blame] | 204 | unsigned char target = scmd_id(SCpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | #endif |
| 206 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 207 | |
| 208 | nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "SCpnt=0x%p target=%d lun=%d buff=0x%p bufflen=%d use_sg=%d", |
| 209 | SCpnt, target, SCpnt->device->lun, SCpnt->request_buffer, SCpnt->request_bufflen, SCpnt->use_sg); |
| 210 | //nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "before CurrentSC=0x%p", data->CurrentSC); |
| 211 | |
| 212 | SCpnt->scsi_done = done; |
| 213 | |
| 214 | if (data->CurrentSC != NULL) { |
| 215 | nsp_msg(KERN_DEBUG, "CurrentSC!=NULL this can't be happen"); |
| 216 | SCpnt->result = DID_BAD_TARGET << 16; |
| 217 | nsp_scsi_done(SCpnt); |
| 218 | return 0; |
| 219 | } |
| 220 | |
| 221 | #if 0 |
| 222 | /* XXX: pcmcia-cs generates SCSI command with "scsi_info" utility. |
| 223 | This makes kernel crash when suspending... */ |
| 224 | if (data->ScsiInfo->stop != 0) { |
| 225 | nsp_msg(KERN_INFO, "suspending device. reject command."); |
| 226 | SCpnt->result = DID_BAD_TARGET << 16; |
| 227 | nsp_scsi_done(SCpnt); |
| 228 | return SCSI_MLQUEUE_HOST_BUSY; |
| 229 | } |
| 230 | #endif |
| 231 | |
| 232 | show_command(SCpnt); |
| 233 | |
| 234 | data->CurrentSC = SCpnt; |
| 235 | |
| 236 | SCpnt->SCp.Status = CHECK_CONDITION; |
| 237 | SCpnt->SCp.Message = 0; |
| 238 | SCpnt->SCp.have_data_in = IO_UNKNOWN; |
| 239 | SCpnt->SCp.sent_command = 0; |
| 240 | SCpnt->SCp.phase = PH_UNDETERMINED; |
| 241 | SCpnt->resid = SCpnt->request_bufflen; |
| 242 | |
| 243 | /* setup scratch area |
| 244 | SCp.ptr : buffer pointer |
| 245 | SCp.this_residual : buffer length |
| 246 | SCp.buffer : next buffer |
| 247 | SCp.buffers_residual : left buffers in list |
| 248 | SCp.phase : current state of the command */ |
| 249 | if (SCpnt->use_sg) { |
| 250 | SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer; |
| 251 | SCpnt->SCp.ptr = BUFFER_ADDR; |
| 252 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; |
| 253 | SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1; |
| 254 | } else { |
| 255 | SCpnt->SCp.ptr = (char *) SCpnt->request_buffer; |
| 256 | SCpnt->SCp.this_residual = SCpnt->request_bufflen; |
| 257 | SCpnt->SCp.buffer = NULL; |
| 258 | SCpnt->SCp.buffers_residual = 0; |
| 259 | } |
| 260 | |
| 261 | if (nsphw_start_selection(SCpnt) == FALSE) { |
| 262 | nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "selection fail"); |
| 263 | SCpnt->result = DID_BUS_BUSY << 16; |
| 264 | nsp_scsi_done(SCpnt); |
| 265 | return 0; |
| 266 | } |
| 267 | |
| 268 | |
| 269 | //nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "out"); |
| 270 | #ifdef NSP_DEBUG |
| 271 | data->CmdId++; |
| 272 | #endif |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | /* |
| 277 | * setup PIO FIFO transfer mode and enable/disable to data out |
| 278 | */ |
| 279 | static void nsp_setup_fifo(nsp_hw_data *data, int enabled) |
| 280 | { |
| 281 | unsigned int base = data->BaseAddress; |
| 282 | unsigned char transfer_mode_reg; |
| 283 | |
| 284 | //nsp_dbg(NSP_DEBUG_DATA_IO, "enabled=%d", enabled); |
| 285 | |
| 286 | if (enabled != FALSE) { |
| 287 | transfer_mode_reg = TRANSFER_GO | BRAIND; |
| 288 | } else { |
| 289 | transfer_mode_reg = 0; |
| 290 | } |
| 291 | |
| 292 | transfer_mode_reg |= data->TransferMode; |
| 293 | |
| 294 | nsp_index_write(base, TRANSFERMODE, transfer_mode_reg); |
| 295 | } |
| 296 | |
| 297 | static void nsphw_init_sync(nsp_hw_data *data) |
| 298 | { |
| 299 | sync_data tmp_sync = { .SyncNegotiation = SYNC_NOT_YET, |
| 300 | .SyncPeriod = 0, |
| 301 | .SyncOffset = 0 |
| 302 | }; |
| 303 | int i; |
| 304 | |
| 305 | /* setup sync data */ |
| 306 | for ( i = 0; i < ARRAY_SIZE(data->Sync); i++ ) { |
| 307 | data->Sync[i] = tmp_sync; |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | /* |
| 312 | * Initialize Ninja hardware |
| 313 | */ |
| 314 | static int nsphw_init(nsp_hw_data *data) |
| 315 | { |
| 316 | unsigned int base = data->BaseAddress; |
| 317 | |
| 318 | nsp_dbg(NSP_DEBUG_INIT, "in base=0x%x", base); |
| 319 | |
| 320 | data->ScsiClockDiv = CLOCK_40M | FAST_20; |
| 321 | data->CurrentSC = NULL; |
| 322 | data->FifoCount = 0; |
| 323 | data->TransferMode = MODE_IO8; |
| 324 | |
| 325 | nsphw_init_sync(data); |
| 326 | |
| 327 | /* block all interrupts */ |
| 328 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); |
| 329 | |
| 330 | /* setup SCSI interface */ |
| 331 | nsp_write(base, IFSELECT, IF_IFSEL); |
| 332 | |
| 333 | nsp_index_write(base, SCSIIRQMODE, 0); |
| 334 | |
| 335 | nsp_index_write(base, TRANSFERMODE, MODE_IO8); |
| 336 | nsp_index_write(base, CLOCKDIV, data->ScsiClockDiv); |
| 337 | |
| 338 | nsp_index_write(base, PARITYCTRL, 0); |
| 339 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | |
| 340 | ACK_COUNTER_CLEAR | |
| 341 | REQ_COUNTER_CLEAR | |
| 342 | HOST_COUNTER_CLEAR); |
| 343 | |
| 344 | /* setup fifo asic */ |
| 345 | nsp_write(base, IFSELECT, IF_REGSEL); |
| 346 | nsp_index_write(base, TERMPWRCTRL, 0); |
| 347 | if ((nsp_index_read(base, OTHERCONTROL) & TPWR_SENSE) == 0) { |
| 348 | nsp_msg(KERN_INFO, "terminator power on"); |
| 349 | nsp_index_write(base, TERMPWRCTRL, POWER_ON); |
| 350 | } |
| 351 | |
| 352 | nsp_index_write(base, TIMERCOUNT, 0); |
| 353 | nsp_index_write(base, TIMERCOUNT, 0); /* requires 2 times!! */ |
| 354 | |
| 355 | nsp_index_write(base, SYNCREG, 0); |
| 356 | nsp_index_write(base, ACKWIDTH, 0); |
| 357 | |
| 358 | /* enable interrupts and ack them */ |
| 359 | nsp_index_write(base, SCSIIRQMODE, SCSI_PHASE_CHANGE_EI | |
| 360 | RESELECT_EI | |
| 361 | SCSI_RESET_IRQ_EI ); |
| 362 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); |
| 363 | |
| 364 | nsp_setup_fifo(data, FALSE); |
| 365 | |
| 366 | return TRUE; |
| 367 | } |
| 368 | |
| 369 | /* |
| 370 | * Start selection phase |
| 371 | */ |
| 372 | static int nsphw_start_selection(Scsi_Cmnd *SCpnt) |
| 373 | { |
| 374 | unsigned int host_id = SCpnt->device->host->this_id; |
| 375 | unsigned int base = SCpnt->device->host->io_port; |
Jeff Garzik | 422c0d6 | 2005-10-24 18:05:09 -0400 | [diff] [blame] | 376 | unsigned char target = scmd_id(SCpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 378 | int time_out; |
| 379 | unsigned char phase, arbit; |
| 380 | |
| 381 | //nsp_dbg(NSP_DEBUG_RESELECTION, "in"); |
| 382 | |
| 383 | phase = nsp_index_read(base, SCSIBUSMON); |
| 384 | if(phase != BUSMON_BUS_FREE) { |
| 385 | //nsp_dbg(NSP_DEBUG_RESELECTION, "bus busy"); |
| 386 | return FALSE; |
| 387 | } |
| 388 | |
| 389 | /* start arbitration */ |
| 390 | //nsp_dbg(NSP_DEBUG_RESELECTION, "start arbit"); |
| 391 | SCpnt->SCp.phase = PH_ARBSTART; |
| 392 | nsp_index_write(base, SETARBIT, ARBIT_GO); |
| 393 | |
| 394 | time_out = 1000; |
| 395 | do { |
| 396 | /* XXX: what a stupid chip! */ |
| 397 | arbit = nsp_index_read(base, ARBITSTATUS); |
| 398 | //nsp_dbg(NSP_DEBUG_RESELECTION, "arbit=%d, wait_count=%d", arbit, wait_count); |
| 399 | udelay(1); /* hold 1.2us */ |
| 400 | } while((arbit & (ARBIT_WIN | ARBIT_FAIL)) == 0 && |
| 401 | (time_out-- != 0)); |
| 402 | |
| 403 | if (!(arbit & ARBIT_WIN)) { |
| 404 | //nsp_dbg(NSP_DEBUG_RESELECTION, "arbit fail"); |
| 405 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); |
| 406 | return FALSE; |
| 407 | } |
| 408 | |
| 409 | /* assert select line */ |
| 410 | //nsp_dbg(NSP_DEBUG_RESELECTION, "assert SEL line"); |
| 411 | SCpnt->SCp.phase = PH_SELSTART; |
| 412 | udelay(3); /* wait 2.4us */ |
| 413 | nsp_index_write(base, SCSIDATALATCH, BIT(host_id) | BIT(target)); |
| 414 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_ATN); |
| 415 | udelay(2); /* wait >1.2us */ |
| 416 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_DATAOUT_ENB | SCSI_ATN); |
| 417 | nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR); |
| 418 | /*udelay(1);*/ /* wait >90ns */ |
| 419 | nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_DATAOUT_ENB | SCSI_ATN); |
| 420 | |
| 421 | /* check selection timeout */ |
| 422 | nsp_start_timer(SCpnt, 1000/51); |
| 423 | data->SelectionTimeOut = 1; |
| 424 | |
| 425 | return TRUE; |
| 426 | } |
| 427 | |
| 428 | struct nsp_sync_table { |
| 429 | unsigned int min_period; |
| 430 | unsigned int max_period; |
| 431 | unsigned int chip_period; |
| 432 | unsigned int ack_width; |
| 433 | }; |
| 434 | |
| 435 | static struct nsp_sync_table nsp_sync_table_40M[] = { |
| 436 | {0x0c, 0x0c, 0x1, 0}, /* 20MB 50ns*/ |
| 437 | {0x19, 0x19, 0x3, 1}, /* 10MB 100ns*/ |
| 438 | {0x1a, 0x25, 0x5, 2}, /* 7.5MB 150ns*/ |
| 439 | {0x26, 0x32, 0x7, 3}, /* 5MB 200ns*/ |
| 440 | { 0, 0, 0, 0}, |
| 441 | }; |
| 442 | |
| 443 | static struct nsp_sync_table nsp_sync_table_20M[] = { |
| 444 | {0x19, 0x19, 0x1, 0}, /* 10MB 100ns*/ |
| 445 | {0x1a, 0x25, 0x2, 0}, /* 7.5MB 150ns*/ |
| 446 | {0x26, 0x32, 0x3, 1}, /* 5MB 200ns*/ |
| 447 | { 0, 0, 0, 0}, |
| 448 | }; |
| 449 | |
| 450 | /* |
| 451 | * setup synchronous data transfer mode |
| 452 | */ |
| 453 | static int nsp_analyze_sdtr(Scsi_Cmnd *SCpnt) |
| 454 | { |
Jeff Garzik | 422c0d6 | 2005-10-24 18:05:09 -0400 | [diff] [blame] | 455 | unsigned char target = scmd_id(SCpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | // unsigned char lun = SCpnt->device->lun; |
| 457 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 458 | sync_data *sync = &(data->Sync[target]); |
| 459 | struct nsp_sync_table *sync_table; |
| 460 | unsigned int period, offset; |
| 461 | int i; |
| 462 | |
| 463 | |
| 464 | nsp_dbg(NSP_DEBUG_SYNC, "in"); |
| 465 | |
| 466 | period = sync->SyncPeriod; |
| 467 | offset = sync->SyncOffset; |
| 468 | |
| 469 | nsp_dbg(NSP_DEBUG_SYNC, "period=0x%x, offset=0x%x", period, offset); |
| 470 | |
| 471 | if ((data->ScsiClockDiv & (BIT(0)|BIT(1))) == CLOCK_20M) { |
| 472 | sync_table = nsp_sync_table_20M; |
| 473 | } else { |
| 474 | sync_table = nsp_sync_table_40M; |
| 475 | } |
| 476 | |
| 477 | for ( i = 0; sync_table->max_period != 0; i++, sync_table++) { |
| 478 | if ( period >= sync_table->min_period && |
| 479 | period <= sync_table->max_period ) { |
| 480 | break; |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | if (period != 0 && sync_table->max_period == 0) { |
| 485 | /* |
| 486 | * No proper period/offset found |
| 487 | */ |
| 488 | nsp_dbg(NSP_DEBUG_SYNC, "no proper period/offset"); |
| 489 | |
| 490 | sync->SyncPeriod = 0; |
| 491 | sync->SyncOffset = 0; |
| 492 | sync->SyncRegister = 0; |
| 493 | sync->AckWidth = 0; |
| 494 | |
| 495 | return FALSE; |
| 496 | } |
| 497 | |
| 498 | sync->SyncRegister = (sync_table->chip_period << SYNCREG_PERIOD_SHIFT) | |
| 499 | (offset & SYNCREG_OFFSET_MASK); |
| 500 | sync->AckWidth = sync_table->ack_width; |
| 501 | |
| 502 | nsp_dbg(NSP_DEBUG_SYNC, "sync_reg=0x%x, ack_width=0x%x", sync->SyncRegister, sync->AckWidth); |
| 503 | |
| 504 | return TRUE; |
| 505 | } |
| 506 | |
| 507 | |
| 508 | /* |
| 509 | * start ninja hardware timer |
| 510 | */ |
| 511 | static void nsp_start_timer(Scsi_Cmnd *SCpnt, int time) |
| 512 | { |
| 513 | unsigned int base = SCpnt->device->host->io_port; |
| 514 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 515 | |
| 516 | //nsp_dbg(NSP_DEBUG_INTR, "in SCpnt=0x%p, time=%d", SCpnt, time); |
| 517 | data->TimerCount = time; |
| 518 | nsp_index_write(base, TIMERCOUNT, time); |
| 519 | } |
| 520 | |
| 521 | /* |
| 522 | * wait for bus phase change |
| 523 | */ |
| 524 | static int nsp_negate_signal(Scsi_Cmnd *SCpnt, unsigned char mask, char *str) |
| 525 | { |
| 526 | unsigned int base = SCpnt->device->host->io_port; |
| 527 | unsigned char reg; |
| 528 | int time_out; |
| 529 | |
| 530 | //nsp_dbg(NSP_DEBUG_INTR, "in"); |
| 531 | |
| 532 | time_out = 100; |
| 533 | |
| 534 | do { |
| 535 | reg = nsp_index_read(base, SCSIBUSMON); |
| 536 | if (reg == 0xff) { |
| 537 | break; |
| 538 | } |
| 539 | } while ((time_out-- != 0) && (reg & mask) != 0); |
| 540 | |
| 541 | if (time_out == 0) { |
| 542 | nsp_msg(KERN_DEBUG, " %s signal off timeut", str); |
| 543 | } |
| 544 | |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | /* |
| 549 | * expect Ninja Irq |
| 550 | */ |
| 551 | static int nsp_expect_signal(Scsi_Cmnd *SCpnt, |
| 552 | unsigned char current_phase, |
| 553 | unsigned char mask) |
| 554 | { |
| 555 | unsigned int base = SCpnt->device->host->io_port; |
| 556 | int time_out; |
| 557 | unsigned char phase, i_src; |
| 558 | |
| 559 | //nsp_dbg(NSP_DEBUG_INTR, "current_phase=0x%x, mask=0x%x", current_phase, mask); |
| 560 | |
| 561 | time_out = 100; |
| 562 | do { |
| 563 | phase = nsp_index_read(base, SCSIBUSMON); |
| 564 | if (phase == 0xff) { |
| 565 | //nsp_dbg(NSP_DEBUG_INTR, "ret -1"); |
| 566 | return -1; |
| 567 | } |
| 568 | i_src = nsp_read(base, IRQSTATUS); |
| 569 | if (i_src & IRQSTATUS_SCSI) { |
| 570 | //nsp_dbg(NSP_DEBUG_INTR, "ret 0 found scsi signal"); |
| 571 | return 0; |
| 572 | } |
| 573 | if ((phase & mask) != 0 && (phase & BUSMON_PHASE_MASK) == current_phase) { |
| 574 | //nsp_dbg(NSP_DEBUG_INTR, "ret 1 phase=0x%x", phase); |
| 575 | return 1; |
| 576 | } |
| 577 | } while(time_out-- != 0); |
| 578 | |
| 579 | //nsp_dbg(NSP_DEBUG_INTR, "timeout"); |
| 580 | return -1; |
| 581 | } |
| 582 | |
| 583 | /* |
| 584 | * transfer SCSI message |
| 585 | */ |
| 586 | static int nsp_xfer(Scsi_Cmnd *SCpnt, int phase) |
| 587 | { |
| 588 | unsigned int base = SCpnt->device->host->io_port; |
| 589 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 590 | char *buf = data->MsgBuffer; |
| 591 | int len = min(MSGBUF_SIZE, data->MsgLen); |
| 592 | int ptr; |
| 593 | int ret; |
| 594 | |
| 595 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in"); |
| 596 | for (ptr = 0; len > 0; len--, ptr++) { |
| 597 | |
| 598 | ret = nsp_expect_signal(SCpnt, phase, BUSMON_REQ); |
| 599 | if (ret <= 0) { |
| 600 | nsp_dbg(NSP_DEBUG_DATA_IO, "xfer quit"); |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | /* if last byte, negate ATN */ |
| 605 | if (len == 1 && SCpnt->SCp.phase == PH_MSG_OUT) { |
| 606 | nsp_index_write(base, SCSIBUSCTRL, AUTODIRECTION | ACKENB); |
| 607 | } |
| 608 | |
| 609 | /* read & write message */ |
| 610 | if (phase & BUSMON_IO) { |
| 611 | nsp_dbg(NSP_DEBUG_DATA_IO, "read msg"); |
| 612 | buf[ptr] = nsp_index_read(base, SCSIDATAWITHACK); |
| 613 | } else { |
| 614 | nsp_dbg(NSP_DEBUG_DATA_IO, "write msg"); |
| 615 | nsp_index_write(base, SCSIDATAWITHACK, buf[ptr]); |
| 616 | } |
| 617 | nsp_negate_signal(SCpnt, BUSMON_ACK, "xfer<ack>"); |
| 618 | |
| 619 | } |
| 620 | return len; |
| 621 | } |
| 622 | |
| 623 | /* |
| 624 | * get extra SCSI data from fifo |
| 625 | */ |
| 626 | static int nsp_dataphase_bypass(Scsi_Cmnd *SCpnt) |
| 627 | { |
| 628 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 629 | unsigned int count; |
| 630 | |
| 631 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in"); |
| 632 | |
| 633 | if (SCpnt->SCp.have_data_in != IO_IN) { |
| 634 | return 0; |
| 635 | } |
| 636 | |
| 637 | count = nsp_fifo_count(SCpnt); |
| 638 | if (data->FifoCount == count) { |
| 639 | //nsp_dbg(NSP_DEBUG_DATA_IO, "not use bypass quirk"); |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | /* |
| 644 | * XXX: NSP_QUIRK |
| 645 | * data phase skip only occures in case of SCSI_LOW_READ |
| 646 | */ |
| 647 | nsp_dbg(NSP_DEBUG_DATA_IO, "use bypass quirk"); |
| 648 | SCpnt->SCp.phase = PH_DATA; |
| 649 | nsp_pio_read(SCpnt); |
| 650 | nsp_setup_fifo(data, FALSE); |
| 651 | |
| 652 | return 0; |
| 653 | } |
| 654 | |
| 655 | /* |
| 656 | * accept reselection |
| 657 | */ |
| 658 | static int nsp_reselected(Scsi_Cmnd *SCpnt) |
| 659 | { |
| 660 | unsigned int base = SCpnt->device->host->io_port; |
| 661 | unsigned int host_id = SCpnt->device->host->this_id; |
| 662 | //nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 663 | unsigned char bus_reg; |
| 664 | unsigned char id_reg, tmp; |
| 665 | int target; |
| 666 | |
| 667 | nsp_dbg(NSP_DEBUG_RESELECTION, "in"); |
| 668 | |
| 669 | id_reg = nsp_index_read(base, RESELECTID); |
| 670 | tmp = id_reg & (~BIT(host_id)); |
| 671 | target = 0; |
| 672 | while(tmp != 0) { |
| 673 | if (tmp & BIT(0)) { |
| 674 | break; |
| 675 | } |
| 676 | tmp >>= 1; |
| 677 | target++; |
| 678 | } |
| 679 | |
Jeff Garzik | 422c0d6 | 2005-10-24 18:05:09 -0400 | [diff] [blame] | 680 | if (scmd_id(SCpnt) != target) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | nsp_msg(KERN_ERR, "XXX: reselect ID must be %d in this implementation.", target); |
| 682 | } |
| 683 | |
| 684 | nsp_negate_signal(SCpnt, BUSMON_SEL, "reselect<SEL>"); |
| 685 | |
| 686 | nsp_nexus(SCpnt); |
| 687 | bus_reg = nsp_index_read(base, SCSIBUSCTRL) & ~(SCSI_BSY | SCSI_ATN); |
| 688 | nsp_index_write(base, SCSIBUSCTRL, bus_reg); |
| 689 | nsp_index_write(base, SCSIBUSCTRL, bus_reg | AUTODIRECTION | ACKENB); |
| 690 | |
| 691 | return TRUE; |
| 692 | } |
| 693 | |
| 694 | /* |
| 695 | * count how many data transferd |
| 696 | */ |
| 697 | static int nsp_fifo_count(Scsi_Cmnd *SCpnt) |
| 698 | { |
| 699 | unsigned int base = SCpnt->device->host->io_port; |
| 700 | unsigned int count; |
| 701 | unsigned int l, m, h, dummy; |
| 702 | |
| 703 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | ACK_COUNTER); |
| 704 | |
| 705 | l = nsp_index_read(base, TRANSFERCOUNT); |
| 706 | m = nsp_index_read(base, TRANSFERCOUNT); |
| 707 | h = nsp_index_read(base, TRANSFERCOUNT); |
| 708 | dummy = nsp_index_read(base, TRANSFERCOUNT); /* required this! */ |
| 709 | |
| 710 | count = (h << 16) | (m << 8) | (l << 0); |
| 711 | |
| 712 | //nsp_dbg(NSP_DEBUG_DATA_IO, "count=0x%x", count); |
| 713 | |
| 714 | return count; |
| 715 | } |
| 716 | |
| 717 | /* fifo size */ |
| 718 | #define RFIFO_CRIT 64 |
| 719 | #define WFIFO_CRIT 64 |
| 720 | |
| 721 | /* |
| 722 | * read data in DATA IN phase |
| 723 | */ |
| 724 | static void nsp_pio_read(Scsi_Cmnd *SCpnt) |
| 725 | { |
| 726 | unsigned int base = SCpnt->device->host->io_port; |
| 727 | unsigned long mmio_base = SCpnt->device->host->base; |
| 728 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 729 | long time_out; |
| 730 | int ocount, res; |
| 731 | unsigned char stat, fifo_stat; |
| 732 | |
| 733 | ocount = data->FifoCount; |
| 734 | |
| 735 | 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", |
| 736 | SCpnt, SCpnt->resid, ocount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual); |
| 737 | |
| 738 | time_out = 1000; |
| 739 | |
| 740 | while ((time_out-- != 0) && |
| 741 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0 ) ) { |
| 742 | |
| 743 | stat = nsp_index_read(base, SCSIBUSMON); |
| 744 | stat &= BUSMON_PHASE_MASK; |
| 745 | |
| 746 | |
| 747 | res = nsp_fifo_count(SCpnt) - ocount; |
| 748 | //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); |
| 749 | if (res == 0) { /* if some data avilable ? */ |
| 750 | if (stat == BUSPHASE_DATA_IN) { /* phase changed? */ |
| 751 | //nsp_dbg(NSP_DEBUG_DATA_IO, " wait for data this=%d", SCpnt->SCp.this_residual); |
| 752 | continue; |
| 753 | } else { |
| 754 | nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x", stat); |
| 755 | break; |
| 756 | } |
| 757 | } |
| 758 | |
| 759 | fifo_stat = nsp_read(base, FIFOSTATUS); |
| 760 | if ((fifo_stat & FIFOSTATUS_FULL_EMPTY) == 0 && |
| 761 | stat == BUSPHASE_DATA_IN) { |
| 762 | continue; |
| 763 | } |
| 764 | |
| 765 | res = min(res, SCpnt->SCp.this_residual); |
| 766 | |
| 767 | switch (data->TransferMode) { |
| 768 | case MODE_IO32: |
| 769 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ |
| 770 | nsp_fifo32_read(base, SCpnt->SCp.ptr, res >> 2); |
| 771 | break; |
| 772 | case MODE_IO8: |
| 773 | nsp_fifo8_read (base, SCpnt->SCp.ptr, res ); |
| 774 | break; |
| 775 | |
| 776 | case MODE_MEM32: |
| 777 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ |
| 778 | nsp_mmio_fifo32_read(mmio_base, SCpnt->SCp.ptr, res >> 2); |
| 779 | break; |
| 780 | |
| 781 | default: |
| 782 | nsp_dbg(NSP_DEBUG_DATA_IO, "unknown read mode"); |
| 783 | return; |
| 784 | } |
| 785 | |
| 786 | SCpnt->resid -= res; |
| 787 | SCpnt->SCp.ptr += res; |
| 788 | SCpnt->SCp.this_residual -= res; |
| 789 | ocount += res; |
| 790 | //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this_residual=0x%x ocount=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount); |
| 791 | |
| 792 | /* go to next scatter list if available */ |
| 793 | if (SCpnt->SCp.this_residual == 0 && |
| 794 | SCpnt->SCp.buffers_residual != 0 ) { |
| 795 | //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next timeout=%d", time_out); |
| 796 | SCpnt->SCp.buffers_residual--; |
| 797 | SCpnt->SCp.buffer++; |
| 798 | SCpnt->SCp.ptr = BUFFER_ADDR; |
| 799 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; |
| 800 | time_out = 1000; |
| 801 | |
| 802 | //nsp_dbg(NSP_DEBUG_DATA_IO, "page: 0x%p, off: 0x%x", SCpnt->SCp.buffer->page, SCpnt->SCp.buffer->offset); |
| 803 | } |
| 804 | } |
| 805 | |
| 806 | data->FifoCount = ocount; |
| 807 | |
| 808 | if (time_out == 0) { |
| 809 | nsp_msg(KERN_DEBUG, "pio read timeout resid=%d this_residual=%d buffers_residual=%d", |
| 810 | SCpnt->resid, SCpnt->SCp.this_residual, SCpnt->SCp.buffers_residual); |
| 811 | } |
| 812 | nsp_dbg(NSP_DEBUG_DATA_IO, "read ocount=0x%x", ocount); |
| 813 | nsp_dbg(NSP_DEBUG_DATA_IO, "r cmd=%d resid=0x%x\n", data->CmdId, SCpnt->resid); |
| 814 | } |
| 815 | |
| 816 | /* |
| 817 | * write data in DATA OUT phase |
| 818 | */ |
| 819 | static void nsp_pio_write(Scsi_Cmnd *SCpnt) |
| 820 | { |
| 821 | unsigned int base = SCpnt->device->host->io_port; |
| 822 | unsigned long mmio_base = SCpnt->device->host->base; |
| 823 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 824 | int time_out; |
| 825 | int ocount, res; |
| 826 | unsigned char stat; |
| 827 | |
| 828 | ocount = data->FifoCount; |
| 829 | |
| 830 | nsp_dbg(NSP_DEBUG_DATA_IO, "in fifocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d resid=0x%x", |
| 831 | data->FifoCount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual, SCpnt->resid); |
| 832 | |
| 833 | time_out = 1000; |
| 834 | |
| 835 | while ((time_out-- != 0) && |
| 836 | (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.buffers_residual > 0)) { |
| 837 | stat = nsp_index_read(base, SCSIBUSMON); |
| 838 | stat &= BUSMON_PHASE_MASK; |
| 839 | |
| 840 | if (stat != BUSPHASE_DATA_OUT) { |
| 841 | res = ocount - nsp_fifo_count(SCpnt); |
| 842 | |
| 843 | nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x, res=%d\n", stat, res); |
| 844 | /* Put back pointer */ |
| 845 | SCpnt->resid += res; |
| 846 | SCpnt->SCp.ptr -= res; |
| 847 | SCpnt->SCp.this_residual += res; |
| 848 | ocount -= res; |
| 849 | |
| 850 | break; |
| 851 | } |
| 852 | |
| 853 | res = ocount - nsp_fifo_count(SCpnt); |
| 854 | if (res > 0) { /* write all data? */ |
| 855 | nsp_dbg(NSP_DEBUG_DATA_IO, "wait for all data out. ocount=0x%x res=%d", ocount, res); |
| 856 | continue; |
| 857 | } |
| 858 | |
| 859 | res = min(SCpnt->SCp.this_residual, WFIFO_CRIT); |
| 860 | |
| 861 | //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x res=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, res); |
| 862 | switch (data->TransferMode) { |
| 863 | case MODE_IO32: |
| 864 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ |
| 865 | nsp_fifo32_write(base, SCpnt->SCp.ptr, res >> 2); |
| 866 | break; |
| 867 | case MODE_IO8: |
| 868 | nsp_fifo8_write (base, SCpnt->SCp.ptr, res ); |
| 869 | break; |
| 870 | |
| 871 | case MODE_MEM32: |
| 872 | res &= ~(BIT(1)|BIT(0)); /* align 4 */ |
| 873 | nsp_mmio_fifo32_write(mmio_base, SCpnt->SCp.ptr, res >> 2); |
| 874 | break; |
| 875 | |
| 876 | default: |
| 877 | nsp_dbg(NSP_DEBUG_DATA_IO, "unknown write mode"); |
| 878 | break; |
| 879 | } |
| 880 | |
| 881 | SCpnt->resid -= res; |
| 882 | SCpnt->SCp.ptr += res; |
| 883 | SCpnt->SCp.this_residual -= res; |
| 884 | ocount += res; |
| 885 | |
| 886 | /* go to next scatter list if available */ |
| 887 | if (SCpnt->SCp.this_residual == 0 && |
| 888 | SCpnt->SCp.buffers_residual != 0 ) { |
| 889 | //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next"); |
| 890 | SCpnt->SCp.buffers_residual--; |
| 891 | SCpnt->SCp.buffer++; |
| 892 | SCpnt->SCp.ptr = BUFFER_ADDR; |
| 893 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; |
| 894 | time_out = 1000; |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | data->FifoCount = ocount; |
| 899 | |
| 900 | if (time_out == 0) { |
| 901 | nsp_msg(KERN_DEBUG, "pio write timeout resid=0x%x", SCpnt->resid); |
| 902 | } |
| 903 | nsp_dbg(NSP_DEBUG_DATA_IO, "write ocount=0x%x", ocount); |
| 904 | nsp_dbg(NSP_DEBUG_DATA_IO, "w cmd=%d resid=0x%x\n", data->CmdId, SCpnt->resid); |
| 905 | } |
| 906 | #undef RFIFO_CRIT |
| 907 | #undef WFIFO_CRIT |
| 908 | |
| 909 | /* |
| 910 | * setup synchronous/asynchronous data transfer mode |
| 911 | */ |
| 912 | static int nsp_nexus(Scsi_Cmnd *SCpnt) |
| 913 | { |
| 914 | unsigned int base = SCpnt->device->host->io_port; |
Jeff Garzik | 422c0d6 | 2005-10-24 18:05:09 -0400 | [diff] [blame] | 915 | unsigned char target = scmd_id(SCpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | // unsigned char lun = SCpnt->device->lun; |
| 917 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 918 | sync_data *sync = &(data->Sync[target]); |
| 919 | |
| 920 | //nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p", SCpnt); |
| 921 | |
| 922 | /* setup synch transfer registers */ |
| 923 | nsp_index_write(base, SYNCREG, sync->SyncRegister); |
| 924 | nsp_index_write(base, ACKWIDTH, sync->AckWidth); |
| 925 | |
| 926 | if (SCpnt->use_sg == 0 || |
| 927 | SCpnt->resid % 4 != 0 || |
| 928 | SCpnt->resid <= PAGE_SIZE ) { |
| 929 | data->TransferMode = MODE_IO8; |
| 930 | } else if (nsp_burst_mode == BURST_MEM32) { |
| 931 | data->TransferMode = MODE_MEM32; |
| 932 | } else if (nsp_burst_mode == BURST_IO32) { |
| 933 | data->TransferMode = MODE_IO32; |
| 934 | } else { |
| 935 | data->TransferMode = MODE_IO8; |
| 936 | } |
| 937 | |
| 938 | /* setup pdma fifo */ |
| 939 | nsp_setup_fifo(data, TRUE); |
| 940 | |
| 941 | /* clear ack counter */ |
| 942 | data->FifoCount = 0; |
| 943 | nsp_index_write(base, POINTERCLR, POINTER_CLEAR | |
| 944 | ACK_COUNTER_CLEAR | |
| 945 | REQ_COUNTER_CLEAR | |
| 946 | HOST_COUNTER_CLEAR); |
| 947 | |
| 948 | return 0; |
| 949 | } |
| 950 | |
| 951 | #include "nsp_message.c" |
| 952 | /* |
| 953 | * interrupt handler |
| 954 | */ |
| 955 | static irqreturn_t nspintr(int irq, void *dev_id, struct pt_regs *regs) |
| 956 | { |
| 957 | unsigned int base; |
| 958 | unsigned char irq_status, irq_phase, phase; |
| 959 | Scsi_Cmnd *tmpSC; |
| 960 | unsigned char target, lun; |
| 961 | unsigned int *sync_neg; |
| 962 | int i, tmp; |
| 963 | nsp_hw_data *data; |
| 964 | |
| 965 | |
| 966 | //nsp_dbg(NSP_DEBUG_INTR, "dev_id=0x%p", dev_id); |
| 967 | //nsp_dbg(NSP_DEBUG_INTR, "host=0x%p", ((scsi_info_t *)dev_id)->host); |
| 968 | |
| 969 | if ( dev_id != NULL && |
| 970 | ((scsi_info_t *)dev_id)->host != NULL ) { |
| 971 | scsi_info_t *info = (scsi_info_t *)dev_id; |
| 972 | |
| 973 | data = (nsp_hw_data *)info->host->hostdata; |
| 974 | } else { |
| 975 | nsp_dbg(NSP_DEBUG_INTR, "host data wrong"); |
| 976 | return IRQ_NONE; |
| 977 | } |
| 978 | |
| 979 | //nsp_dbg(NSP_DEBUG_INTR, "&nsp_data_base=0x%p, dev_id=0x%p", &nsp_data_base, dev_id); |
| 980 | |
| 981 | base = data->BaseAddress; |
| 982 | //nsp_dbg(NSP_DEBUG_INTR, "base=0x%x", base); |
| 983 | |
| 984 | /* |
| 985 | * interrupt check |
| 986 | */ |
| 987 | nsp_write(base, IRQCONTROL, IRQCONTROL_IRQDISABLE); |
| 988 | irq_status = nsp_read(base, IRQSTATUS); |
| 989 | //nsp_dbg(NSP_DEBUG_INTR, "irq_status=0x%x", irq_status); |
| 990 | if ((irq_status == 0xff) || ((irq_status & IRQSTATUS_MASK) == 0)) { |
| 991 | nsp_write(base, IRQCONTROL, 0); |
| 992 | //nsp_dbg(NSP_DEBUG_INTR, "no irq/shared irq"); |
| 993 | return IRQ_NONE; |
| 994 | } |
| 995 | |
| 996 | /* XXX: IMPORTANT |
| 997 | * Do not read an irq_phase register if no scsi phase interrupt. |
| 998 | * Unless, you should lose a scsi phase interrupt. |
| 999 | */ |
| 1000 | phase = nsp_index_read(base, SCSIBUSMON); |
| 1001 | if((irq_status & IRQSTATUS_SCSI) != 0) { |
| 1002 | irq_phase = nsp_index_read(base, IRQPHASESENCE); |
| 1003 | } else { |
| 1004 | irq_phase = 0; |
| 1005 | } |
| 1006 | |
| 1007 | //nsp_dbg(NSP_DEBUG_INTR, "irq_phase=0x%x", irq_phase); |
| 1008 | |
| 1009 | /* |
| 1010 | * timer interrupt handler (scsi vs timer interrupts) |
| 1011 | */ |
| 1012 | //nsp_dbg(NSP_DEBUG_INTR, "timercount=%d", data->TimerCount); |
| 1013 | if (data->TimerCount != 0) { |
| 1014 | //nsp_dbg(NSP_DEBUG_INTR, "stop timer"); |
| 1015 | nsp_index_write(base, TIMERCOUNT, 0); |
| 1016 | nsp_index_write(base, TIMERCOUNT, 0); |
| 1017 | data->TimerCount = 0; |
| 1018 | } |
| 1019 | |
| 1020 | if ((irq_status & IRQSTATUS_MASK) == IRQSTATUS_TIMER && |
| 1021 | data->SelectionTimeOut == 0) { |
| 1022 | //nsp_dbg(NSP_DEBUG_INTR, "timer start"); |
| 1023 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR); |
| 1024 | return IRQ_HANDLED; |
| 1025 | } |
| 1026 | |
| 1027 | nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR | IRQCONTROL_FIFO_CLEAR); |
| 1028 | |
| 1029 | if ((irq_status & IRQSTATUS_SCSI) && |
| 1030 | (irq_phase & SCSI_RESET_IRQ)) { |
| 1031 | nsp_msg(KERN_ERR, "bus reset (power off?)"); |
| 1032 | |
| 1033 | nsphw_init(data); |
| 1034 | nsp_bus_reset(data); |
| 1035 | |
| 1036 | if(data->CurrentSC != NULL) { |
| 1037 | tmpSC = data->CurrentSC; |
| 1038 | tmpSC->result = (DID_RESET << 16) | |
| 1039 | ((tmpSC->SCp.Message & 0xff) << 8) | |
| 1040 | ((tmpSC->SCp.Status & 0xff) << 0); |
| 1041 | nsp_scsi_done(tmpSC); |
| 1042 | } |
| 1043 | return IRQ_HANDLED; |
| 1044 | } |
| 1045 | |
| 1046 | if (data->CurrentSC == NULL) { |
| 1047 | nsp_msg(KERN_ERR, "CurrentSC==NULL irq_status=0x%x phase=0x%x irq_phase=0x%x this can't be happen. reset everything", irq_status, phase, irq_phase); |
| 1048 | nsphw_init(data); |
| 1049 | nsp_bus_reset(data); |
| 1050 | return IRQ_HANDLED; |
| 1051 | } |
| 1052 | |
| 1053 | tmpSC = data->CurrentSC; |
| 1054 | target = tmpSC->device->id; |
| 1055 | lun = tmpSC->device->lun; |
| 1056 | sync_neg = &(data->Sync[target].SyncNegotiation); |
| 1057 | |
| 1058 | /* |
| 1059 | * parse hardware SCSI irq reasons register |
| 1060 | */ |
| 1061 | if (irq_status & IRQSTATUS_SCSI) { |
| 1062 | if (irq_phase & RESELECT_IRQ) { |
| 1063 | nsp_dbg(NSP_DEBUG_INTR, "reselect"); |
| 1064 | nsp_write(base, IRQCONTROL, IRQCONTROL_RESELECT_CLEAR); |
| 1065 | if (nsp_reselected(tmpSC) != FALSE) { |
| 1066 | return IRQ_HANDLED; |
| 1067 | } |
| 1068 | } |
| 1069 | |
| 1070 | if ((irq_phase & (PHASE_CHANGE_IRQ | LATCHED_BUS_FREE)) == 0) { |
| 1071 | return IRQ_HANDLED; |
| 1072 | } |
| 1073 | } |
| 1074 | |
| 1075 | //show_phase(tmpSC); |
| 1076 | |
| 1077 | switch(tmpSC->SCp.phase) { |
| 1078 | case PH_SELSTART: |
| 1079 | // *sync_neg = SYNC_NOT_YET; |
| 1080 | if ((phase & BUSMON_BSY) == 0) { |
| 1081 | //nsp_dbg(NSP_DEBUG_INTR, "selection count=%d", data->SelectionTimeOut); |
| 1082 | if (data->SelectionTimeOut >= NSP_SELTIMEOUT) { |
| 1083 | nsp_dbg(NSP_DEBUG_INTR, "selection time out"); |
| 1084 | data->SelectionTimeOut = 0; |
| 1085 | nsp_index_write(base, SCSIBUSCTRL, 0); |
| 1086 | |
| 1087 | tmpSC->result = DID_TIME_OUT << 16; |
| 1088 | nsp_scsi_done(tmpSC); |
| 1089 | |
| 1090 | return IRQ_HANDLED; |
| 1091 | } |
| 1092 | data->SelectionTimeOut += 1; |
| 1093 | nsp_start_timer(tmpSC, 1000/51); |
| 1094 | return IRQ_HANDLED; |
| 1095 | } |
| 1096 | |
| 1097 | /* attention assert */ |
| 1098 | //nsp_dbg(NSP_DEBUG_INTR, "attention assert"); |
| 1099 | data->SelectionTimeOut = 0; |
| 1100 | tmpSC->SCp.phase = PH_SELECTED; |
| 1101 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN); |
| 1102 | udelay(1); |
| 1103 | nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN | AUTODIRECTION | ACKENB); |
| 1104 | return IRQ_HANDLED; |
| 1105 | |
| 1106 | break; |
| 1107 | |
| 1108 | case PH_RESELECT: |
| 1109 | //nsp_dbg(NSP_DEBUG_INTR, "phase reselect"); |
| 1110 | // *sync_neg = SYNC_NOT_YET; |
| 1111 | if ((phase & BUSMON_PHASE_MASK) != BUSPHASE_MESSAGE_IN) { |
| 1112 | |
| 1113 | tmpSC->result = DID_ABORT << 16; |
| 1114 | nsp_scsi_done(tmpSC); |
| 1115 | return IRQ_HANDLED; |
| 1116 | } |
| 1117 | /* fall thru */ |
| 1118 | default: |
| 1119 | if ((irq_status & (IRQSTATUS_SCSI | IRQSTATUS_FIFO)) == 0) { |
| 1120 | return IRQ_HANDLED; |
| 1121 | } |
| 1122 | break; |
| 1123 | } |
| 1124 | |
| 1125 | /* |
| 1126 | * SCSI sequencer |
| 1127 | */ |
| 1128 | //nsp_dbg(NSP_DEBUG_INTR, "start scsi seq"); |
| 1129 | |
| 1130 | /* normal disconnect */ |
| 1131 | if (((tmpSC->SCp.phase == PH_MSG_IN) || (tmpSC->SCp.phase == PH_MSG_OUT)) && |
| 1132 | (irq_phase & LATCHED_BUS_FREE) != 0 ) { |
| 1133 | nsp_dbg(NSP_DEBUG_INTR, "normal disconnect irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase); |
| 1134 | |
| 1135 | //*sync_neg = SYNC_NOT_YET; |
| 1136 | |
| 1137 | if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { /* all command complete and return status */ |
| 1138 | tmpSC->result = (DID_OK << 16) | |
| 1139 | ((tmpSC->SCp.Message & 0xff) << 8) | |
| 1140 | ((tmpSC->SCp.Status & 0xff) << 0); |
| 1141 | nsp_dbg(NSP_DEBUG_INTR, "command complete result=0x%x", tmpSC->result); |
| 1142 | nsp_scsi_done(tmpSC); |
| 1143 | |
| 1144 | return IRQ_HANDLED; |
| 1145 | } |
| 1146 | |
| 1147 | return IRQ_HANDLED; |
| 1148 | } |
| 1149 | |
| 1150 | |
| 1151 | /* check unexpected bus free state */ |
| 1152 | if (phase == 0) { |
| 1153 | nsp_msg(KERN_DEBUG, "unexpected bus free. irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase); |
| 1154 | |
| 1155 | *sync_neg = SYNC_NG; |
| 1156 | tmpSC->result = DID_ERROR << 16; |
| 1157 | nsp_scsi_done(tmpSC); |
| 1158 | return IRQ_HANDLED; |
| 1159 | } |
| 1160 | |
| 1161 | switch (phase & BUSMON_PHASE_MASK) { |
| 1162 | case BUSPHASE_COMMAND: |
| 1163 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_COMMAND"); |
| 1164 | if ((phase & BUSMON_REQ) == 0) { |
| 1165 | nsp_dbg(NSP_DEBUG_INTR, "REQ == 0"); |
| 1166 | return IRQ_HANDLED; |
| 1167 | } |
| 1168 | |
| 1169 | tmpSC->SCp.phase = PH_COMMAND; |
| 1170 | |
| 1171 | nsp_nexus(tmpSC); |
| 1172 | |
| 1173 | /* write scsi command */ |
| 1174 | nsp_dbg(NSP_DEBUG_INTR, "cmd_len=%d", tmpSC->cmd_len); |
| 1175 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER); |
| 1176 | for (i = 0; i < tmpSC->cmd_len; i++) { |
| 1177 | nsp_index_write(base, COMMANDDATA, tmpSC->cmnd[i]); |
| 1178 | } |
| 1179 | nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER | AUTO_COMMAND_GO); |
| 1180 | break; |
| 1181 | |
| 1182 | case BUSPHASE_DATA_OUT: |
| 1183 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_OUT"); |
| 1184 | |
| 1185 | tmpSC->SCp.phase = PH_DATA; |
| 1186 | tmpSC->SCp.have_data_in = IO_OUT; |
| 1187 | |
| 1188 | nsp_pio_write(tmpSC); |
| 1189 | |
| 1190 | break; |
| 1191 | |
| 1192 | case BUSPHASE_DATA_IN: |
| 1193 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_IN"); |
| 1194 | |
| 1195 | tmpSC->SCp.phase = PH_DATA; |
| 1196 | tmpSC->SCp.have_data_in = IO_IN; |
| 1197 | |
| 1198 | nsp_pio_read(tmpSC); |
| 1199 | |
| 1200 | break; |
| 1201 | |
| 1202 | case BUSPHASE_STATUS: |
| 1203 | nsp_dataphase_bypass(tmpSC); |
| 1204 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_STATUS"); |
| 1205 | |
| 1206 | tmpSC->SCp.phase = PH_STATUS; |
| 1207 | |
| 1208 | tmpSC->SCp.Status = nsp_index_read(base, SCSIDATAWITHACK); |
| 1209 | nsp_dbg(NSP_DEBUG_INTR, "message=0x%x status=0x%x", tmpSC->SCp.Message, tmpSC->SCp.Status); |
| 1210 | |
| 1211 | break; |
| 1212 | |
| 1213 | case BUSPHASE_MESSAGE_OUT: |
| 1214 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_OUT"); |
| 1215 | if ((phase & BUSMON_REQ) == 0) { |
| 1216 | goto timer_out; |
| 1217 | } |
| 1218 | |
| 1219 | tmpSC->SCp.phase = PH_MSG_OUT; |
| 1220 | |
| 1221 | //*sync_neg = SYNC_NOT_YET; |
| 1222 | |
| 1223 | data->MsgLen = i = 0; |
| 1224 | data->MsgBuffer[i] = IDENTIFY(TRUE, lun); i++; |
| 1225 | |
| 1226 | if (*sync_neg == SYNC_NOT_YET) { |
| 1227 | data->Sync[target].SyncPeriod = 0; |
| 1228 | data->Sync[target].SyncOffset = 0; |
| 1229 | |
| 1230 | /**/ |
| 1231 | data->MsgBuffer[i] = MSG_EXTENDED; i++; |
| 1232 | data->MsgBuffer[i] = 3; i++; |
| 1233 | data->MsgBuffer[i] = MSG_EXT_SDTR; i++; |
| 1234 | data->MsgBuffer[i] = 0x0c; i++; |
| 1235 | data->MsgBuffer[i] = 15; i++; |
| 1236 | /**/ |
| 1237 | } |
| 1238 | data->MsgLen = i; |
| 1239 | |
| 1240 | nsp_analyze_sdtr(tmpSC); |
| 1241 | show_message(data); |
| 1242 | nsp_message_out(tmpSC); |
| 1243 | break; |
| 1244 | |
| 1245 | case BUSPHASE_MESSAGE_IN: |
| 1246 | nsp_dataphase_bypass(tmpSC); |
| 1247 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_IN"); |
| 1248 | if ((phase & BUSMON_REQ) == 0) { |
| 1249 | goto timer_out; |
| 1250 | } |
| 1251 | |
| 1252 | tmpSC->SCp.phase = PH_MSG_IN; |
| 1253 | nsp_message_in(tmpSC); |
| 1254 | |
| 1255 | /**/ |
| 1256 | if (*sync_neg == SYNC_NOT_YET) { |
| 1257 | //nsp_dbg(NSP_DEBUG_INTR, "sync target=%d,lun=%d",target,lun); |
| 1258 | |
| 1259 | if (data->MsgLen >= 5 && |
| 1260 | data->MsgBuffer[0] == MSG_EXTENDED && |
| 1261 | data->MsgBuffer[1] == 3 && |
| 1262 | data->MsgBuffer[2] == MSG_EXT_SDTR ) { |
| 1263 | data->Sync[target].SyncPeriod = data->MsgBuffer[3]; |
| 1264 | data->Sync[target].SyncOffset = data->MsgBuffer[4]; |
| 1265 | //nsp_dbg(NSP_DEBUG_INTR, "sync ok, %d %d", data->MsgBuffer[3], data->MsgBuffer[4]); |
| 1266 | *sync_neg = SYNC_OK; |
| 1267 | } else { |
| 1268 | data->Sync[target].SyncPeriod = 0; |
| 1269 | data->Sync[target].SyncOffset = 0; |
| 1270 | *sync_neg = SYNC_NG; |
| 1271 | } |
| 1272 | nsp_analyze_sdtr(tmpSC); |
| 1273 | } |
| 1274 | /**/ |
| 1275 | |
| 1276 | /* search last messeage byte */ |
| 1277 | tmp = -1; |
| 1278 | for (i = 0; i < data->MsgLen; i++) { |
| 1279 | tmp = data->MsgBuffer[i]; |
| 1280 | if (data->MsgBuffer[i] == MSG_EXTENDED) { |
| 1281 | i += (1 + data->MsgBuffer[i+1]); |
| 1282 | } |
| 1283 | } |
| 1284 | tmpSC->SCp.Message = tmp; |
| 1285 | |
| 1286 | nsp_dbg(NSP_DEBUG_INTR, "message=0x%x len=%d", tmpSC->SCp.Message, data->MsgLen); |
| 1287 | show_message(data); |
| 1288 | |
| 1289 | break; |
| 1290 | |
| 1291 | case BUSPHASE_SELECT: |
| 1292 | default: |
| 1293 | nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE other"); |
| 1294 | |
| 1295 | break; |
| 1296 | } |
| 1297 | |
| 1298 | //nsp_dbg(NSP_DEBUG_INTR, "out"); |
| 1299 | return IRQ_HANDLED; |
| 1300 | |
| 1301 | timer_out: |
| 1302 | nsp_start_timer(tmpSC, 1000/102); |
| 1303 | return IRQ_HANDLED; |
| 1304 | } |
| 1305 | |
| 1306 | #ifdef NSP_DEBUG |
| 1307 | #include "nsp_debug.c" |
| 1308 | #endif /* NSP_DEBUG */ |
| 1309 | |
| 1310 | /*----------------------------------------------------------------*/ |
| 1311 | /* look for ninja3 card and init if found */ |
| 1312 | /*----------------------------------------------------------------*/ |
| 1313 | static struct Scsi_Host *nsp_detect(Scsi_Host_Template *sht) |
| 1314 | { |
| 1315 | struct Scsi_Host *host; /* registered host structure */ |
| 1316 | nsp_hw_data *data_b = &nsp_data_base, *data; |
| 1317 | |
| 1318 | nsp_dbg(NSP_DEBUG_INIT, "this_id=%d", sht->this_id); |
| 1319 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) |
| 1320 | host = scsi_host_alloc(&nsp_driver_template, sizeof(nsp_hw_data)); |
| 1321 | #else |
| 1322 | host = scsi_register(sht, sizeof(nsp_hw_data)); |
| 1323 | #endif |
| 1324 | if (host == NULL) { |
| 1325 | nsp_dbg(NSP_DEBUG_INIT, "host failed"); |
| 1326 | return NULL; |
| 1327 | } |
| 1328 | |
| 1329 | memcpy(host->hostdata, data_b, sizeof(nsp_hw_data)); |
| 1330 | data = (nsp_hw_data *)host->hostdata; |
| 1331 | data->ScsiInfo->host = host; |
| 1332 | #ifdef NSP_DEBUG |
| 1333 | data->CmdId = 0; |
| 1334 | #endif |
| 1335 | |
| 1336 | nsp_dbg(NSP_DEBUG_INIT, "irq=%d,%d", data_b->IrqNumber, ((nsp_hw_data *)host->hostdata)->IrqNumber); |
| 1337 | |
| 1338 | host->unique_id = data->BaseAddress; |
| 1339 | host->io_port = data->BaseAddress; |
| 1340 | host->n_io_port = data->NumAddress; |
| 1341 | host->irq = data->IrqNumber; |
| 1342 | host->base = data->MmioAddress; |
| 1343 | |
| 1344 | spin_lock_init(&(data->Lock)); |
| 1345 | |
| 1346 | snprintf(data->nspinfo, |
| 1347 | sizeof(data->nspinfo), |
| 1348 | "NinjaSCSI-3/32Bi Driver $Revision: 1.23 $ IO:0x%04lx-0x%04lx MMIO(virt addr):0x%04lx IRQ:%02d", |
| 1349 | host->io_port, host->io_port + host->n_io_port - 1, |
| 1350 | host->base, |
| 1351 | host->irq); |
| 1352 | sht->name = data->nspinfo; |
| 1353 | |
| 1354 | nsp_dbg(NSP_DEBUG_INIT, "end"); |
| 1355 | |
| 1356 | |
| 1357 | return host; /* detect done. */ |
| 1358 | } |
| 1359 | |
| 1360 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) |
| 1361 | static int nsp_detect_old(Scsi_Host_Template *sht) |
| 1362 | { |
| 1363 | if (nsp_detect(sht) == NULL) { |
| 1364 | return 0; |
| 1365 | } else { |
| 1366 | //MOD_INC_USE_COUNT; |
| 1367 | return 1; |
| 1368 | } |
| 1369 | } |
| 1370 | |
| 1371 | |
| 1372 | static int nsp_release_old(struct Scsi_Host *shpnt) |
| 1373 | { |
| 1374 | //nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata; |
| 1375 | |
| 1376 | /* PCMCIA Card Service dose same things below. */ |
| 1377 | /* So we do nothing. */ |
| 1378 | //if (shpnt->irq) { |
| 1379 | // free_irq(shpnt->irq, data->ScsiInfo); |
| 1380 | //} |
| 1381 | //if (shpnt->io_port) { |
| 1382 | // release_region(shpnt->io_port, shpnt->n_io_port); |
| 1383 | //} |
| 1384 | |
| 1385 | //MOD_DEC_USE_COUNT; |
| 1386 | |
| 1387 | return 0; |
| 1388 | } |
| 1389 | #endif |
| 1390 | |
| 1391 | /*----------------------------------------------------------------*/ |
| 1392 | /* return info string */ |
| 1393 | /*----------------------------------------------------------------*/ |
| 1394 | static const char *nsp_info(struct Scsi_Host *shpnt) |
| 1395 | { |
| 1396 | nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata; |
| 1397 | |
| 1398 | return data->nspinfo; |
| 1399 | } |
| 1400 | |
| 1401 | #undef SPRINTF |
| 1402 | #define SPRINTF(args...) \ |
| 1403 | do { \ |
| 1404 | if(length > (pos - buffer)) { \ |
| 1405 | pos += snprintf(pos, length - (pos - buffer) + 1, ## args); \ |
| 1406 | nsp_dbg(NSP_DEBUG_PROC, "buffer=0x%p pos=0x%p length=%d %d\n", buffer, pos, length, length - (pos - buffer));\ |
| 1407 | } \ |
| 1408 | } while(0) |
| 1409 | static int |
| 1410 | nsp_proc_info( |
| 1411 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) |
| 1412 | struct Scsi_Host *host, |
| 1413 | #endif |
| 1414 | char *buffer, |
| 1415 | char **start, |
| 1416 | off_t offset, |
| 1417 | int length, |
| 1418 | #if !(LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) |
| 1419 | int hostno, |
| 1420 | #endif |
| 1421 | int inout) |
| 1422 | { |
| 1423 | int id; |
| 1424 | char *pos = buffer; |
| 1425 | int thislength; |
| 1426 | int speed; |
| 1427 | unsigned long flags; |
| 1428 | nsp_hw_data *data; |
| 1429 | #if !(LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) |
| 1430 | struct Scsi_Host *host; |
| 1431 | #else |
| 1432 | int hostno; |
| 1433 | #endif |
| 1434 | if (inout) { |
| 1435 | return -EINVAL; |
| 1436 | } |
| 1437 | |
| 1438 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73)) |
| 1439 | hostno = host->host_no; |
| 1440 | #else |
| 1441 | /* search this HBA host */ |
| 1442 | host = scsi_host_hn_get(hostno); |
| 1443 | if (host == NULL) { |
| 1444 | return -ESRCH; |
| 1445 | } |
| 1446 | #endif |
| 1447 | data = (nsp_hw_data *)host->hostdata; |
| 1448 | |
| 1449 | |
| 1450 | SPRINTF("NinjaSCSI status\n\n"); |
| 1451 | SPRINTF("Driver version: $Revision: 1.23 $\n"); |
| 1452 | SPRINTF("SCSI host No.: %d\n", hostno); |
| 1453 | SPRINTF("IRQ: %d\n", host->irq); |
| 1454 | SPRINTF("IO: 0x%lx-0x%lx\n", host->io_port, host->io_port + host->n_io_port - 1); |
| 1455 | SPRINTF("MMIO(virtual address): 0x%lx-0x%lx\n", host->base, host->base + data->MmioLength - 1); |
| 1456 | SPRINTF("sg_tablesize: %d\n", host->sg_tablesize); |
| 1457 | |
| 1458 | SPRINTF("burst transfer mode: "); |
| 1459 | switch (nsp_burst_mode) { |
| 1460 | case BURST_IO8: |
| 1461 | SPRINTF("io8"); |
| 1462 | break; |
| 1463 | case BURST_IO32: |
| 1464 | SPRINTF("io32"); |
| 1465 | break; |
| 1466 | case BURST_MEM32: |
| 1467 | SPRINTF("mem32"); |
| 1468 | break; |
| 1469 | default: |
| 1470 | SPRINTF("???"); |
| 1471 | break; |
| 1472 | } |
| 1473 | SPRINTF("\n"); |
| 1474 | |
| 1475 | |
| 1476 | spin_lock_irqsave(&(data->Lock), flags); |
| 1477 | SPRINTF("CurrentSC: 0x%p\n\n", data->CurrentSC); |
| 1478 | spin_unlock_irqrestore(&(data->Lock), flags); |
| 1479 | |
| 1480 | SPRINTF("SDTR status\n"); |
| 1481 | for(id = 0; id < ARRAY_SIZE(data->Sync); id++) { |
| 1482 | |
| 1483 | SPRINTF("id %d: ", id); |
| 1484 | |
| 1485 | if (id == host->this_id) { |
| 1486 | SPRINTF("----- NinjaSCSI-3 host adapter\n"); |
| 1487 | continue; |
| 1488 | } |
| 1489 | |
| 1490 | switch(data->Sync[id].SyncNegotiation) { |
| 1491 | case SYNC_OK: |
| 1492 | SPRINTF(" sync"); |
| 1493 | break; |
| 1494 | case SYNC_NG: |
| 1495 | SPRINTF("async"); |
| 1496 | break; |
| 1497 | case SYNC_NOT_YET: |
| 1498 | SPRINTF(" none"); |
| 1499 | break; |
| 1500 | default: |
| 1501 | SPRINTF("?????"); |
| 1502 | break; |
| 1503 | } |
| 1504 | |
| 1505 | if (data->Sync[id].SyncPeriod != 0) { |
| 1506 | speed = 1000000 / (data->Sync[id].SyncPeriod * 4); |
| 1507 | |
| 1508 | SPRINTF(" transfer %d.%dMB/s, offset %d", |
| 1509 | speed / 1000, |
| 1510 | speed % 1000, |
| 1511 | data->Sync[id].SyncOffset |
| 1512 | ); |
| 1513 | } |
| 1514 | SPRINTF("\n"); |
| 1515 | } |
| 1516 | |
| 1517 | thislength = pos - (buffer + offset); |
| 1518 | |
| 1519 | if(thislength < 0) { |
| 1520 | *start = NULL; |
| 1521 | return 0; |
| 1522 | } |
| 1523 | |
| 1524 | |
| 1525 | thislength = min(thislength, length); |
| 1526 | *start = buffer + offset; |
| 1527 | |
| 1528 | return thislength; |
| 1529 | } |
| 1530 | #undef SPRINTF |
| 1531 | |
| 1532 | /*---------------------------------------------------------------*/ |
| 1533 | /* error handler */ |
| 1534 | /*---------------------------------------------------------------*/ |
| 1535 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | /* |
| 1537 | static int nsp_eh_abort(Scsi_Cmnd *SCpnt) |
| 1538 | { |
| 1539 | nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p", SCpnt); |
| 1540 | |
| 1541 | return nsp_eh_bus_reset(SCpnt); |
| 1542 | }*/ |
| 1543 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1544 | static int nsp_bus_reset(nsp_hw_data *data) |
| 1545 | { |
| 1546 | unsigned int base = data->BaseAddress; |
| 1547 | int i; |
| 1548 | |
| 1549 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK); |
| 1550 | |
| 1551 | nsp_index_write(base, SCSIBUSCTRL, SCSI_RST); |
| 1552 | mdelay(100); /* 100ms */ |
| 1553 | nsp_index_write(base, SCSIBUSCTRL, 0); |
| 1554 | for(i = 0; i < 5; i++) { |
| 1555 | nsp_index_read(base, IRQPHASESENCE); /* dummy read */ |
| 1556 | } |
| 1557 | |
| 1558 | nsphw_init_sync(data); |
| 1559 | |
| 1560 | nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR); |
| 1561 | |
| 1562 | return SUCCESS; |
| 1563 | } |
| 1564 | |
| 1565 | static int nsp_eh_bus_reset(Scsi_Cmnd *SCpnt) |
| 1566 | { |
| 1567 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 1568 | |
| 1569 | nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p", SCpnt); |
| 1570 | |
| 1571 | return nsp_bus_reset(data); |
| 1572 | } |
| 1573 | |
| 1574 | static int nsp_eh_host_reset(Scsi_Cmnd *SCpnt) |
| 1575 | { |
| 1576 | nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; |
| 1577 | |
| 1578 | nsp_dbg(NSP_DEBUG_BUSRESET, "in"); |
| 1579 | |
| 1580 | nsphw_init(data); |
| 1581 | |
| 1582 | return SUCCESS; |
| 1583 | } |
| 1584 | |
| 1585 | |
| 1586 | /********************************************************************** |
| 1587 | PCMCIA functions |
| 1588 | **********************************************************************/ |
| 1589 | |
| 1590 | /*====================================================================== |
| 1591 | nsp_cs_attach() creates an "instance" of the driver, allocating |
| 1592 | local data structures for one device. The device is registered |
| 1593 | with Card Services. |
| 1594 | |
| 1595 | The dev_link structure is initialized, but we don't actually |
| 1596 | configure the card at this point -- we wait until we receive a |
| 1597 | card insertion event. |
| 1598 | ======================================================================*/ |
| 1599 | static dev_link_t *nsp_cs_attach(void) |
| 1600 | { |
| 1601 | scsi_info_t *info; |
| 1602 | client_reg_t client_reg; |
| 1603 | dev_link_t *link; |
| 1604 | int ret; |
| 1605 | nsp_hw_data *data = &nsp_data_base; |
| 1606 | |
| 1607 | nsp_dbg(NSP_DEBUG_INIT, "in"); |
| 1608 | |
| 1609 | /* Create new SCSI device */ |
| 1610 | info = kmalloc(sizeof(*info), GFP_KERNEL); |
| 1611 | if (info == NULL) { return NULL; } |
| 1612 | memset(info, 0, sizeof(*info)); |
| 1613 | link = &info->link; |
| 1614 | link->priv = info; |
| 1615 | data->ScsiInfo = info; |
| 1616 | |
| 1617 | nsp_dbg(NSP_DEBUG_INIT, "info=0x%p", info); |
| 1618 | |
| 1619 | /* The io structure describes IO port mapping */ |
| 1620 | link->io.NumPorts1 = 0x10; |
| 1621 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| 1622 | link->io.IOAddrLines = 10; /* not used */ |
| 1623 | |
| 1624 | /* Interrupt setup */ |
| 1625 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| 1626 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 1627 | |
| 1628 | /* Interrupt handler */ |
| 1629 | link->irq.Handler = &nspintr; |
| 1630 | link->irq.Instance = info; |
| 1631 | link->irq.Attributes |= (SA_SHIRQ | SA_SAMPLE_RANDOM); |
| 1632 | |
| 1633 | /* General socket configuration */ |
| 1634 | link->conf.Attributes = CONF_ENABLE_IRQ; |
| 1635 | link->conf.Vcc = 50; |
| 1636 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 1637 | link->conf.Present = PRESENT_OPTION; |
| 1638 | |
| 1639 | |
| 1640 | /* Register with Card Services */ |
| 1641 | link->next = dev_list; |
| 1642 | dev_list = link; |
| 1643 | client_reg.dev_info = &dev_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | client_reg.Version = 0x0210; |
| 1645 | client_reg.event_callback_args.client_data = link; |
| 1646 | ret = pcmcia_register_client(&link->handle, &client_reg); |
| 1647 | if (ret != CS_SUCCESS) { |
| 1648 | cs_error(link->handle, RegisterClient, ret); |
| 1649 | nsp_cs_detach(link); |
| 1650 | return NULL; |
| 1651 | } |
| 1652 | |
| 1653 | |
| 1654 | nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link); |
| 1655 | return link; |
| 1656 | } /* nsp_cs_attach */ |
| 1657 | |
| 1658 | |
| 1659 | /*====================================================================== |
| 1660 | This deletes a driver "instance". The device is de-registered |
| 1661 | with Card Services. If it has been released, all local data |
| 1662 | structures are freed. Otherwise, the structures will be freed |
| 1663 | when the device is released. |
| 1664 | ======================================================================*/ |
| 1665 | static void nsp_cs_detach(dev_link_t *link) |
| 1666 | { |
| 1667 | dev_link_t **linkp; |
| 1668 | |
| 1669 | nsp_dbg(NSP_DEBUG_INIT, "in, link=0x%p", link); |
| 1670 | |
| 1671 | /* Locate device structure */ |
| 1672 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) { |
| 1673 | if (*linkp == link) { |
| 1674 | break; |
| 1675 | } |
| 1676 | } |
| 1677 | if (*linkp == NULL) { |
| 1678 | return; |
| 1679 | } |
| 1680 | |
| 1681 | if (link->state & DEV_CONFIG) |
| 1682 | nsp_cs_release(link); |
| 1683 | |
| 1684 | /* Break the link with Card Services */ |
| 1685 | if (link->handle) { |
| 1686 | pcmcia_deregister_client(link->handle); |
| 1687 | } |
| 1688 | |
| 1689 | /* Unlink device structure, free bits */ |
| 1690 | *linkp = link->next; |
| 1691 | kfree(link->priv); |
| 1692 | link->priv = NULL; |
| 1693 | |
| 1694 | } /* nsp_cs_detach */ |
| 1695 | |
| 1696 | |
| 1697 | /*====================================================================== |
| 1698 | nsp_cs_config() is scheduled to run after a CARD_INSERTION event |
| 1699 | is received, to configure the PCMCIA socket, and to make the |
| 1700 | ethernet device available to the system. |
| 1701 | ======================================================================*/ |
| 1702 | #define CS_CHECK(fn, ret) \ |
| 1703 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| 1704 | /*====================================================================*/ |
| 1705 | static void nsp_cs_config(dev_link_t *link) |
| 1706 | { |
| 1707 | client_handle_t handle = link->handle; |
| 1708 | scsi_info_t *info = link->priv; |
| 1709 | tuple_t tuple; |
| 1710 | cisparse_t parse; |
| 1711 | int last_ret, last_fn; |
| 1712 | unsigned char tuple_data[64]; |
| 1713 | config_info_t conf; |
| 1714 | win_req_t req; |
| 1715 | memreq_t map; |
| 1716 | cistpl_cftable_entry_t dflt = { 0 }; |
| 1717 | struct Scsi_Host *host; |
| 1718 | nsp_hw_data *data = &nsp_data_base; |
| 1719 | #if !(LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74)) |
| 1720 | Scsi_Device *dev; |
| 1721 | dev_node_t **tail, *node; |
| 1722 | #endif |
| 1723 | |
| 1724 | nsp_dbg(NSP_DEBUG_INIT, "in"); |
| 1725 | |
| 1726 | tuple.DesiredTuple = CISTPL_CONFIG; |
| 1727 | tuple.Attributes = 0; |
| 1728 | tuple.TupleData = tuple_data; |
| 1729 | tuple.TupleDataMax = sizeof(tuple_data); |
| 1730 | tuple.TupleOffset = 0; |
| 1731 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| 1732 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); |
| 1733 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); |
| 1734 | link->conf.ConfigBase = parse.config.base; |
| 1735 | link->conf.Present = parse.config.rmask[0]; |
| 1736 | |
| 1737 | /* Configure card */ |
| 1738 | link->state |= DEV_CONFIG; |
| 1739 | |
| 1740 | /* Look up the current Vcc */ |
| 1741 | CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); |
| 1742 | link->conf.Vcc = conf.Vcc; |
| 1743 | |
| 1744 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| 1745 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| 1746 | while (1) { |
| 1747 | cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); |
| 1748 | |
| 1749 | if (pcmcia_get_tuple_data(handle, &tuple) != 0 || |
| 1750 | pcmcia_parse_tuple(handle, &tuple, &parse) != 0) |
| 1751 | goto next_entry; |
| 1752 | |
| 1753 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) { dflt = *cfg; } |
| 1754 | if (cfg->index == 0) { goto next_entry; } |
| 1755 | link->conf.ConfigIndex = cfg->index; |
| 1756 | |
| 1757 | /* Does this card need audio output? */ |
| 1758 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { |
| 1759 | link->conf.Attributes |= CONF_ENABLE_SPKR; |
| 1760 | link->conf.Status = CCSR_AUDIO_ENA; |
| 1761 | } |
| 1762 | |
| 1763 | /* Use power settings for Vcc and Vpp if present */ |
| 1764 | /* Note that the CIS values need to be rescaled */ |
| 1765 | if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) { |
| 1766 | if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000) { |
| 1767 | goto next_entry; |
| 1768 | } |
| 1769 | } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) { |
| 1770 | if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000) { |
| 1771 | goto next_entry; |
| 1772 | } |
| 1773 | } |
| 1774 | |
| 1775 | if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) { |
| 1776 | link->conf.Vpp1 = link->conf.Vpp2 = |
| 1777 | cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
| 1778 | } else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) { |
| 1779 | link->conf.Vpp1 = link->conf.Vpp2 = |
| 1780 | dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000; |
| 1781 | } |
| 1782 | |
| 1783 | /* Do we need to allocate an interrupt? */ |
| 1784 | if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) { |
| 1785 | link->conf.Attributes |= CONF_ENABLE_IRQ; |
| 1786 | } |
| 1787 | |
| 1788 | /* IO window settings */ |
| 1789 | link->io.NumPorts1 = link->io.NumPorts2 = 0; |
| 1790 | if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { |
| 1791 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; |
| 1792 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| 1793 | if (!(io->flags & CISTPL_IO_8BIT)) |
| 1794 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| 1795 | if (!(io->flags & CISTPL_IO_16BIT)) |
| 1796 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 1797 | link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; |
| 1798 | link->io.BasePort1 = io->win[0].base; |
| 1799 | link->io.NumPorts1 = io->win[0].len; |
| 1800 | if (io->nwin > 1) { |
| 1801 | link->io.Attributes2 = link->io.Attributes1; |
| 1802 | link->io.BasePort2 = io->win[1].base; |
| 1803 | link->io.NumPorts2 = io->win[1].len; |
| 1804 | } |
| 1805 | /* This reserves IO space but doesn't actually enable it */ |
| 1806 | if (pcmcia_request_io(link->handle, &link->io) != 0) |
| 1807 | goto next_entry; |
| 1808 | } |
| 1809 | |
| 1810 | if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) { |
| 1811 | cistpl_mem_t *mem = |
| 1812 | (cfg->mem.nwin) ? &cfg->mem : &dflt.mem; |
| 1813 | req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM; |
| 1814 | req.Attributes |= WIN_ENABLE; |
| 1815 | req.Base = mem->win[0].host_addr; |
| 1816 | req.Size = mem->win[0].len; |
| 1817 | if (req.Size < 0x1000) { |
| 1818 | req.Size = 0x1000; |
| 1819 | } |
| 1820 | req.AccessSpeed = 0; |
| 1821 | if (pcmcia_request_window(&link->handle, &req, &link->win) != 0) |
| 1822 | goto next_entry; |
| 1823 | map.Page = 0; map.CardOffset = mem->win[0].card_addr; |
| 1824 | if (pcmcia_map_mem_page(link->win, &map) != 0) |
| 1825 | goto next_entry; |
| 1826 | |
| 1827 | data->MmioAddress = (unsigned long)ioremap_nocache(req.Base, req.Size); |
| 1828 | data->MmioLength = req.Size; |
| 1829 | } |
| 1830 | /* If we got this far, we're cool! */ |
| 1831 | break; |
| 1832 | |
| 1833 | next_entry: |
| 1834 | nsp_dbg(NSP_DEBUG_INIT, "next"); |
| 1835 | |
| 1836 | if (link->io.NumPorts1) { |
| 1837 | pcmcia_release_io(link->handle, &link->io); |
| 1838 | } |
| 1839 | CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple)); |
| 1840 | } |
| 1841 | |
| 1842 | if (link->conf.Attributes & CONF_ENABLE_IRQ) { |
| 1843 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); |
| 1844 | } |
| 1845 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); |
| 1846 | |
| 1847 | if (free_ports) { |
| 1848 | if (link->io.BasePort1) { |
| 1849 | release_region(link->io.BasePort1, link->io.NumPorts1); |
| 1850 | } |
| 1851 | if (link->io.BasePort2) { |
| 1852 | release_region(link->io.BasePort2, link->io.NumPorts2); |
| 1853 | } |
| 1854 | } |
| 1855 | |
| 1856 | /* Set port and IRQ */ |
| 1857 | data->BaseAddress = link->io.BasePort1; |
| 1858 | data->NumAddress = link->io.NumPorts1; |
| 1859 | data->IrqNumber = link->irq.AssignedIRQ; |
| 1860 | |
| 1861 | nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d", |
| 1862 | data->BaseAddress, data->NumAddress, data->IrqNumber); |
| 1863 | |
| 1864 | if(nsphw_init(data) == FALSE) { |
| 1865 | goto cs_failed; |
| 1866 | } |
| 1867 | |
| 1868 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)) |
| 1869 | host = nsp_detect(&nsp_driver_template); |
| 1870 | #else |
| 1871 | scsi_register_host(&nsp_driver_template); |
| 1872 | for (host = scsi_host_get_next(NULL); host != NULL; |
| 1873 | host = scsi_host_get_next(host)) { |
| 1874 | if (host->hostt == &nsp_driver_template) { |
| 1875 | break; |
| 1876 | } |
| 1877 | } |
| 1878 | #endif |
| 1879 | |
| 1880 | if (host == NULL) { |
| 1881 | nsp_dbg(NSP_DEBUG_INIT, "detect failed"); |
| 1882 | goto cs_failed; |
| 1883 | } |
| 1884 | |
| 1885 | |
| 1886 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74)) |
| 1887 | scsi_add_host (host, NULL); |
| 1888 | scsi_scan_host(host); |
| 1889 | |
| 1890 | snprintf(info->node.dev_name, sizeof(info->node.dev_name), "scsi%d", host->host_no); |
| 1891 | link->dev = &info->node; |
| 1892 | info->host = host; |
| 1893 | |
| 1894 | #else |
| 1895 | nsp_dbg(NSP_DEBUG_INIT, "GET_SCSI_INFO"); |
| 1896 | tail = &link->dev; |
| 1897 | info->ndev = 0; |
| 1898 | |
| 1899 | nsp_dbg(NSP_DEBUG_INIT, "host=0x%p", host); |
| 1900 | |
| 1901 | for (dev = host->host_queue; dev != NULL; dev = dev->next) { |
| 1902 | unsigned long id; |
| 1903 | id = (dev->id & 0x0f) + ((dev->lun & 0x0f) << 4) + |
| 1904 | ((dev->channel & 0x0f) << 8) + |
| 1905 | ((dev->host->host_no & 0x0f) << 12); |
| 1906 | node = &info->node[info->ndev]; |
| 1907 | node->minor = 0; |
| 1908 | switch (dev->type) { |
| 1909 | case TYPE_TAPE: |
| 1910 | node->major = SCSI_TAPE_MAJOR; |
| 1911 | snprintf(node->dev_name, sizeof(node->dev_name), "st#%04lx", id); |
| 1912 | break; |
| 1913 | case TYPE_DISK: |
| 1914 | case TYPE_MOD: |
| 1915 | node->major = SCSI_DISK0_MAJOR; |
| 1916 | snprintf(node->dev_name, sizeof(node->dev_name), "sd#%04lx", id); |
| 1917 | break; |
| 1918 | case TYPE_ROM: |
| 1919 | case TYPE_WORM: |
| 1920 | node->major = SCSI_CDROM_MAJOR; |
| 1921 | snprintf(node->dev_name, sizeof(node->dev_name), "sr#%04lx", id); |
| 1922 | break; |
| 1923 | default: |
| 1924 | node->major = SCSI_GENERIC_MAJOR; |
| 1925 | snprintf(node->dev_name, sizeof(node->dev_name), "sg#%04lx", id); |
| 1926 | break; |
| 1927 | } |
| 1928 | *tail = node; tail = &node->next; |
| 1929 | info->ndev++; |
| 1930 | info->host = dev->host; |
| 1931 | } |
| 1932 | |
| 1933 | *tail = NULL; |
| 1934 | if (info->ndev == 0) { |
| 1935 | nsp_msg(KERN_INFO, "no SCSI devices found"); |
| 1936 | } |
| 1937 | nsp_dbg(NSP_DEBUG_INIT, "host=0x%p", host); |
| 1938 | #endif |
| 1939 | |
| 1940 | /* Finally, report what we've done */ |
| 1941 | printk(KERN_INFO "nsp_cs: index 0x%02x: Vcc %d.%d", |
| 1942 | link->conf.ConfigIndex, |
| 1943 | link->conf.Vcc/10, link->conf.Vcc%10); |
| 1944 | if (link->conf.Vpp1) { |
| 1945 | printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10); |
| 1946 | } |
| 1947 | if (link->conf.Attributes & CONF_ENABLE_IRQ) { |
| 1948 | printk(", irq %d", link->irq.AssignedIRQ); |
| 1949 | } |
| 1950 | if (link->io.NumPorts1) { |
| 1951 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, |
| 1952 | link->io.BasePort1+link->io.NumPorts1-1); |
| 1953 | } |
| 1954 | if (link->io.NumPorts2) |
| 1955 | printk(" & 0x%04x-0x%04x", link->io.BasePort2, |
| 1956 | link->io.BasePort2+link->io.NumPorts2-1); |
| 1957 | if (link->win) |
| 1958 | printk(", mem 0x%06lx-0x%06lx", req.Base, |
| 1959 | req.Base+req.Size-1); |
| 1960 | printk("\n"); |
| 1961 | |
| 1962 | link->state &= ~DEV_CONFIG_PENDING; |
| 1963 | return; |
| 1964 | |
| 1965 | cs_failed: |
| 1966 | nsp_dbg(NSP_DEBUG_INIT, "config fail"); |
| 1967 | cs_error(link->handle, last_fn, last_ret); |
| 1968 | nsp_cs_release(link); |
| 1969 | |
| 1970 | return; |
| 1971 | } /* nsp_cs_config */ |
| 1972 | #undef CS_CHECK |
| 1973 | |
| 1974 | |
| 1975 | /*====================================================================== |
| 1976 | After a card is removed, nsp_cs_release() will unregister the net |
| 1977 | device, and release the PCMCIA configuration. If the device is |
| 1978 | still open, this will be postponed until it is closed. |
| 1979 | ======================================================================*/ |
| 1980 | static void nsp_cs_release(dev_link_t *link) |
| 1981 | { |
| 1982 | scsi_info_t *info = link->priv; |
| 1983 | nsp_hw_data *data = NULL; |
| 1984 | |
| 1985 | if (info->host == NULL) { |
| 1986 | nsp_msg(KERN_DEBUG, "unexpected card release call."); |
| 1987 | } else { |
| 1988 | data = (nsp_hw_data *)info->host->hostdata; |
| 1989 | } |
| 1990 | |
| 1991 | nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link); |
| 1992 | |
| 1993 | /* Unlink the device chain */ |
| 1994 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,2)) |
| 1995 | if (info->host != NULL) { |
| 1996 | scsi_remove_host(info->host); |
| 1997 | } |
| 1998 | #else |
| 1999 | scsi_unregister_host(&nsp_driver_template); |
| 2000 | #endif |
| 2001 | link->dev = NULL; |
| 2002 | |
| 2003 | if (link->win) { |
| 2004 | if (data != NULL) { |
| 2005 | iounmap((void *)(data->MmioAddress)); |
| 2006 | } |
| 2007 | pcmcia_release_window(link->win); |
| 2008 | } |
| 2009 | pcmcia_release_configuration(link->handle); |
| 2010 | if (link->io.NumPorts1) { |
| 2011 | pcmcia_release_io(link->handle, &link->io); |
| 2012 | } |
| 2013 | if (link->irq.AssignedIRQ) { |
| 2014 | pcmcia_release_irq(link->handle, &link->irq); |
| 2015 | } |
| 2016 | link->state &= ~DEV_CONFIG; |
| 2017 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,2)) |
| 2018 | if (info->host != NULL) { |
| 2019 | scsi_host_put(info->host); |
| 2020 | } |
| 2021 | #endif |
| 2022 | } /* nsp_cs_release */ |
| 2023 | |
| 2024 | /*====================================================================== |
| 2025 | |
| 2026 | The card status event handler. Mostly, this schedules other |
| 2027 | stuff to run after an event is received. A CARD_REMOVAL event |
| 2028 | also sets some flags to discourage the net drivers from trying |
| 2029 | to talk to the card any more. |
| 2030 | |
| 2031 | When a CARD_REMOVAL event is received, we immediately set a flag |
| 2032 | to block future accesses to this device. All the functions that |
| 2033 | actually access the device should check this flag to make sure |
| 2034 | the card is still present. |
| 2035 | |
| 2036 | ======================================================================*/ |
| 2037 | static int nsp_cs_event(event_t event, |
| 2038 | int priority, |
| 2039 | event_callback_args_t *args) |
| 2040 | { |
| 2041 | dev_link_t *link = args->client_data; |
| 2042 | scsi_info_t *info = link->priv; |
| 2043 | nsp_hw_data *data; |
| 2044 | |
| 2045 | nsp_dbg(NSP_DEBUG_INIT, "in, event=0x%08x", event); |
| 2046 | |
| 2047 | switch (event) { |
| 2048 | case CS_EVENT_CARD_REMOVAL: |
| 2049 | nsp_dbg(NSP_DEBUG_INIT, "event: remove"); |
| 2050 | link->state &= ~DEV_PRESENT; |
| 2051 | if (link->state & DEV_CONFIG) { |
| 2052 | ((scsi_info_t *)link->priv)->stop = 1; |
| 2053 | nsp_cs_release(link); |
| 2054 | } |
| 2055 | break; |
| 2056 | |
| 2057 | case CS_EVENT_CARD_INSERTION: |
| 2058 | nsp_dbg(NSP_DEBUG_INIT, "event: insert"); |
| 2059 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| 2060 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,68)) |
| 2061 | info->bus = args->bus; |
| 2062 | #endif |
| 2063 | nsp_cs_config(link); |
| 2064 | break; |
| 2065 | |
| 2066 | case CS_EVENT_PM_SUSPEND: |
| 2067 | nsp_dbg(NSP_DEBUG_INIT, "event: suspend"); |
| 2068 | link->state |= DEV_SUSPEND; |
| 2069 | /* Fall through... */ |
| 2070 | case CS_EVENT_RESET_PHYSICAL: |
| 2071 | /* Mark the device as stopped, to block IO until later */ |
| 2072 | nsp_dbg(NSP_DEBUG_INIT, "event: reset physical"); |
| 2073 | |
| 2074 | if (info->host != NULL) { |
| 2075 | nsp_msg(KERN_INFO, "clear SDTR status"); |
| 2076 | |
| 2077 | data = (nsp_hw_data *)info->host->hostdata; |
| 2078 | |
| 2079 | nsphw_init_sync(data); |
| 2080 | } |
| 2081 | |
| 2082 | info->stop = 1; |
| 2083 | if (link->state & DEV_CONFIG) { |
| 2084 | pcmcia_release_configuration(link->handle); |
| 2085 | } |
| 2086 | break; |
| 2087 | |
| 2088 | case CS_EVENT_PM_RESUME: |
| 2089 | nsp_dbg(NSP_DEBUG_INIT, "event: resume"); |
| 2090 | link->state &= ~DEV_SUSPEND; |
| 2091 | /* Fall through... */ |
| 2092 | case CS_EVENT_CARD_RESET: |
| 2093 | nsp_dbg(NSP_DEBUG_INIT, "event: reset"); |
| 2094 | if (link->state & DEV_CONFIG) { |
| 2095 | pcmcia_request_configuration(link->handle, &link->conf); |
| 2096 | } |
| 2097 | info->stop = 0; |
| 2098 | |
| 2099 | if (info->host != NULL) { |
| 2100 | nsp_msg(KERN_INFO, "reset host and bus"); |
| 2101 | |
| 2102 | data = (nsp_hw_data *)info->host->hostdata; |
| 2103 | |
| 2104 | nsphw_init (data); |
| 2105 | nsp_bus_reset(data); |
| 2106 | } |
| 2107 | |
| 2108 | break; |
| 2109 | |
| 2110 | default: |
| 2111 | nsp_dbg(NSP_DEBUG_INIT, "event: unknown"); |
| 2112 | break; |
| 2113 | } |
| 2114 | nsp_dbg(NSP_DEBUG_INIT, "end"); |
| 2115 | return 0; |
| 2116 | } /* nsp_cs_event */ |
| 2117 | |
| 2118 | /*======================================================================* |
| 2119 | * module entry point |
| 2120 | *====================================================================*/ |
| 2121 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68)) |
Dominik Brodowski | aba1410 | 2005-06-27 16:28:40 -0700 | [diff] [blame] | 2122 | static struct pcmcia_device_id nsp_cs_ids[] = { |
| 2123 | PCMCIA_DEVICE_PROD_ID123("IO DATA", "CBSC16 ", "1", 0x547e66dc, 0x0d63a3fd, 0x51de003a), |
| 2124 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-001", "1", 0x534c02bc, 0x52008408, 0x51de003a), |
| 2125 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-002", "1", 0x534c02bc, 0xcb09d5b2, 0x51de003a), |
| 2126 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-003", "1", 0x534c02bc, 0xbc0ee524, 0x51de003a), |
| 2127 | PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-004", "1", 0x534c02bc, 0x226a7087, 0x51de003a), |
| 2128 | PCMCIA_DEVICE_PROD_ID123("WBT", "NinjaSCSI-3", "R1.0", 0xc7ba805f, 0xfdc7c97d, 0x6973710e), |
| 2129 | PCMCIA_DEVICE_PROD_ID123("WORKBIT", "UltraNinja-16", "1", 0x28191418, 0xb70f4b09, 0x51de003a), |
| 2130 | PCMCIA_DEVICE_NULL |
| 2131 | }; |
| 2132 | MODULE_DEVICE_TABLE(pcmcia, nsp_cs_ids); |
| 2133 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2134 | static struct pcmcia_driver nsp_driver = { |
Dominik Brodowski | 1e212f3 | 2005-07-07 17:59:00 -0700 | [diff] [blame] | 2135 | .owner = THIS_MODULE, |
| 2136 | .drv = { |
| 2137 | .name = "nsp_cs", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | }, |
Dominik Brodowski | 1e212f3 | 2005-07-07 17:59:00 -0700 | [diff] [blame] | 2139 | .attach = nsp_cs_attach, |
| 2140 | .event = nsp_cs_event, |
| 2141 | .detach = nsp_cs_detach, |
Dominik Brodowski | aba1410 | 2005-06-27 16:28:40 -0700 | [diff] [blame] | 2142 | .id_table = nsp_cs_ids, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2143 | }; |
| 2144 | #endif |
| 2145 | |
| 2146 | static int __init nsp_cs_init(void) |
| 2147 | { |
| 2148 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68)) |
| 2149 | nsp_msg(KERN_INFO, "loading..."); |
| 2150 | |
| 2151 | return pcmcia_register_driver(&nsp_driver); |
| 2152 | #else |
| 2153 | servinfo_t serv; |
| 2154 | |
| 2155 | nsp_msg(KERN_INFO, "loading..."); |
| 2156 | pcmcia_get_card_services_info(&serv); |
Pavel Roskin | 2ffe6e2 | 2005-07-07 17:59:04 -0700 | [diff] [blame] | 2157 | if (serv.Revision != CS_RELEASE_CODE) { |
| 2158 | nsp_msg(KERN_DEBUG, "Card Services release does not match!"); |
| 2159 | return -EINVAL; |
| 2160 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2161 | register_pcmcia_driver(&dev_info, &nsp_cs_attach, &nsp_cs_detach); |
| 2162 | |
| 2163 | nsp_dbg(NSP_DEBUG_INIT, "out"); |
| 2164 | return 0; |
| 2165 | #endif |
| 2166 | } |
| 2167 | |
| 2168 | static void __exit nsp_cs_exit(void) |
| 2169 | { |
| 2170 | nsp_msg(KERN_INFO, "unloading..."); |
| 2171 | |
| 2172 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68)) |
| 2173 | pcmcia_unregister_driver(&nsp_driver); |
| 2174 | BUG_ON(dev_list != NULL); |
| 2175 | #else |
| 2176 | unregister_pcmcia_driver(&dev_info); |
| 2177 | /* XXX: this really needs to move into generic code.. */ |
| 2178 | while (dev_list != NULL) { |
| 2179 | if (dev_list->state & DEV_CONFIG) { |
| 2180 | nsp_cs_release(dev_list); |
| 2181 | } |
| 2182 | nsp_cs_detach(dev_list); |
| 2183 | } |
| 2184 | #endif |
| 2185 | } |
| 2186 | |
| 2187 | |
| 2188 | module_init(nsp_cs_init) |
| 2189 | module_exit(nsp_cs_exit) |
| 2190 | |
| 2191 | /* end */ |