Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | #define AUTOSENSE |
| 3 | #define PSEUDO_DMA |
| 4 | #define DONT_USE_INTR |
| 5 | #define UNSAFE /* Leave interrupts enabled during pseudo-dma I/O */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | #define DMA_WORKS_RIGHT |
| 7 | |
| 8 | |
| 9 | /* |
| 10 | * DTC 3180/3280 driver, by |
| 11 | * Ray Van Tassle rayvt@comm.mot.com |
| 12 | * |
| 13 | * taken from ... |
| 14 | * Trantor T128/T128F/T228 driver by... |
| 15 | * |
| 16 | * Drew Eckhardt |
| 17 | * Visionary Computing |
| 18 | * (Unix and Linux consulting and custom programming) |
| 19 | * drew@colorado.edu |
| 20 | * +1 (303) 440-4894 |
| 21 | * |
| 22 | * DISTRIBUTION RELEASE 1. |
| 23 | * |
| 24 | * For more information, please consult |
| 25 | * |
| 26 | * NCR 5380 Family |
| 27 | * SCSI Protocol Controller |
| 28 | * Databook |
| 29 | */ |
| 30 | |
| 31 | /* |
| 32 | * Options : |
| 33 | * AUTOSENSE - if defined, REQUEST SENSE will be performed automatically |
| 34 | * for commands that return with a CHECK CONDITION status. |
| 35 | * |
| 36 | * PSEUDO_DMA - enables PSEUDO-DMA hardware, should give a 3-4X performance |
| 37 | * increase compared to polled I/O. |
| 38 | * |
| 39 | * PARITY - enable parity checking. Not supported. |
| 40 | * |
| 41 | * UNSAFE - leave interrupts enabled during pseudo-DMA transfers. |
| 42 | * You probably want this. |
| 43 | * |
| 44 | * The card is detected and initialized in one of several ways : |
| 45 | * 1. Autoprobe (default) - since the board is memory mapped, |
| 46 | * a BIOS signature is scanned for to locate the registers. |
| 47 | * An interrupt is triggered to autoprobe for the interrupt |
| 48 | * line. |
| 49 | * |
| 50 | * 2. With command line overrides - dtc=address,irq may be |
| 51 | * used on the LILO command line to override the defaults. |
| 52 | * |
| 53 | */ |
| 54 | |
| 55 | /*----------------------------------------------------------------*/ |
| 56 | /* the following will set the monitor border color (useful to find |
| 57 | where something crashed or gets stuck at */ |
| 58 | /* 1 = blue |
| 59 | 2 = green |
| 60 | 3 = cyan |
| 61 | 4 = red |
| 62 | 5 = magenta |
| 63 | 6 = yellow |
| 64 | 7 = white |
| 65 | */ |
| 66 | #if 0 |
| 67 | #define rtrc(i) {inb(0x3da); outb(0x31, 0x3c0); outb((i), 0x3c0);} |
| 68 | #else |
| 69 | #define rtrc(i) {} |
| 70 | #endif |
| 71 | |
| 72 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | #include <linux/module.h> |
| 74 | #include <linux/signal.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | #include <linux/blkdev.h> |
| 76 | #include <linux/delay.h> |
| 77 | #include <linux/stat.h> |
| 78 | #include <linux/string.h> |
| 79 | #include <linux/init.h> |
| 80 | #include <linux/interrupt.h> |
Matthew Wilcox | 53d5ed6 | 2006-10-11 01:22:01 -0700 | [diff] [blame] | 81 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | #include "scsi.h" |
| 83 | #include <scsi/scsi_host.h> |
| 84 | #include "dtc.h" |
| 85 | #define AUTOPROBE_IRQ |
| 86 | #include "NCR5380.h" |
| 87 | |
| 88 | |
| 89 | #define DTC_PUBLIC_RELEASE 2 |
| 90 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | /* |
| 92 | * The DTC3180 & 3280 boards are memory mapped. |
| 93 | * |
| 94 | */ |
| 95 | |
| 96 | /* |
| 97 | */ |
| 98 | /* Offset from DTC_5380_OFFSET */ |
| 99 | #define DTC_CONTROL_REG 0x100 /* rw */ |
| 100 | #define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */ |
| 101 | #define CSR_DIR_READ 0x40 /* rw direction, 1 = read 0 = write */ |
| 102 | |
| 103 | #define CSR_RESET 0x80 /* wo Resets 53c400 */ |
| 104 | #define CSR_5380_REG 0x80 /* ro 5380 registers can be accessed */ |
| 105 | #define CSR_TRANS_DIR 0x40 /* rw Data transfer direction */ |
| 106 | #define CSR_SCSI_BUFF_INTR 0x20 /* rw Enable int on transfer ready */ |
| 107 | #define CSR_5380_INTR 0x10 /* rw Enable 5380 interrupts */ |
| 108 | #define CSR_SHARED_INTR 0x08 /* rw Interrupt sharing */ |
| 109 | #define CSR_HOST_BUF_NOT_RDY 0x04 /* ro Host buffer not ready */ |
| 110 | #define CSR_SCSI_BUF_RDY 0x02 /* ro SCSI buffer ready */ |
| 111 | #define CSR_GATED_5380_IRQ 0x01 /* ro Last block xferred */ |
| 112 | #define CSR_INT_BASE (CSR_SCSI_BUFF_INTR | CSR_5380_INTR) |
| 113 | |
| 114 | |
| 115 | #define DTC_BLK_CNT 0x101 /* rw |
| 116 | * # of 128-byte blocks to transfer */ |
| 117 | |
| 118 | |
| 119 | #define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */ |
| 120 | |
| 121 | #define DTC_SWITCH_REG 0x3982 /* ro - DIP switches */ |
| 122 | #define DTC_RESUME_XFER 0x3982 /* wo - resume data xfer |
| 123 | * after disconnect/reconnect*/ |
| 124 | |
| 125 | #define DTC_5380_OFFSET 0x3880 /* 8 registers here, see NCR5380.h */ |
| 126 | |
| 127 | /*!!!! for dtc, it's a 128 byte buffer at 3900 !!! */ |
| 128 | #define DTC_DATA_BUF 0x3900 /* rw 128 bytes long */ |
| 129 | |
| 130 | static struct override { |
| 131 | unsigned int address; |
| 132 | int irq; |
| 133 | } overrides |
| 134 | #ifdef OVERRIDE |
| 135 | [] __initdata = OVERRIDE; |
| 136 | #else |
Alan Cox | 1fbe852 | 2007-08-10 14:50:41 -0700 | [diff] [blame] | 137 | [4] __initdata = { |
| 138 | { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO } |
| 139 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | #endif |
| 141 | |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 142 | #define NO_OVERRIDES ARRAY_SIZE(overrides) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
| 144 | static struct base { |
| 145 | unsigned long address; |
| 146 | int noauto; |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 147 | } bases[] __initdata = { |
| 148 | { 0xcc000, 0 }, |
| 149 | { 0xc8000, 0 }, |
| 150 | { 0xdc000, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | { 0xd8000, 0 } |
| 152 | }; |
| 153 | |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 154 | #define NO_BASES ARRAY_SIZE(bases) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | |
| 156 | static const struct signature { |
| 157 | const char *string; |
| 158 | int offset; |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 159 | } signatures[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | {"DATA TECHNOLOGY CORPORATION BIOS", 0x25}, |
| 161 | }; |
| 162 | |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 163 | #define NO_SIGNATURES ARRAY_SIZE(signatures) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | |
| 165 | #ifndef MODULE |
| 166 | /* |
| 167 | * Function : dtc_setup(char *str, int *ints) |
| 168 | * |
| 169 | * Purpose : LILO command line initialization of the overrides array, |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 170 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | * Inputs : str - unused, ints - array of integer parameters with ints[0] |
| 172 | * equal to the number of ints. |
| 173 | * |
Alan Cox | 1fbe852 | 2007-08-10 14:50:41 -0700 | [diff] [blame] | 174 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
| 176 | static void __init dtc_setup(char *str, int *ints) |
| 177 | { |
| 178 | static int commandline_current = 0; |
| 179 | int i; |
| 180 | if (ints[0] != 2) |
| 181 | printk("dtc_setup: usage dtc=address,irq\n"); |
| 182 | else if (commandline_current < NO_OVERRIDES) { |
| 183 | overrides[commandline_current].address = ints[1]; |
| 184 | overrides[commandline_current].irq = ints[2]; |
| 185 | for (i = 0; i < NO_BASES; ++i) |
| 186 | if (bases[i].address == ints[1]) { |
| 187 | bases[i].noauto = 1; |
| 188 | break; |
| 189 | } |
| 190 | ++commandline_current; |
| 191 | } |
| 192 | } |
| 193 | #endif |
| 194 | |
| 195 | /* |
Christoph Hellwig | d0be4a7d | 2005-10-31 18:31:40 +0100 | [diff] [blame] | 196 | * Function : int dtc_detect(struct scsi_host_template * tpnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | * |
| 198 | * Purpose : detects and initializes DTC 3180/3280 controllers |
| 199 | * that were autoprobed, overridden on the LILO command line, |
| 200 | * or specified at compile time. |
| 201 | * |
| 202 | * Inputs : tpnt - template for this SCSI adapter. |
| 203 | * |
| 204 | * Returns : 1 if a host adapter was found, 0 if not. |
| 205 | * |
| 206 | */ |
| 207 | |
Christoph Hellwig | d0be4a7d | 2005-10-31 18:31:40 +0100 | [diff] [blame] | 208 | static int __init dtc_detect(struct scsi_host_template * tpnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | { |
| 210 | static int current_override = 0, current_base = 0; |
| 211 | struct Scsi_Host *instance; |
| 212 | unsigned int addr; |
| 213 | void __iomem *base; |
| 214 | int sig, count; |
| 215 | |
| 216 | tpnt->proc_name = "dtc3x80"; |
Al Viro | dd7ab71 | 2013-03-31 01:15:54 -0400 | [diff] [blame] | 217 | tpnt->show_info = dtc_show_info; |
| 218 | tpnt->write_info = dtc_write_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | |
| 220 | for (count = 0; current_override < NO_OVERRIDES; ++current_override) { |
| 221 | addr = 0; |
| 222 | base = NULL; |
| 223 | |
| 224 | if (overrides[current_override].address) { |
| 225 | addr = overrides[current_override].address; |
| 226 | base = ioremap(addr, 0x2000); |
| 227 | if (!base) |
| 228 | addr = 0; |
| 229 | } else |
| 230 | for (; !addr && (current_base < NO_BASES); ++current_base) { |
| 231 | #if (DTCDEBUG & DTCDEBUG_INIT) |
Alan Cox | 1fbe852 | 2007-08-10 14:50:41 -0700 | [diff] [blame] | 232 | printk(KERN_DEBUG "scsi-dtc : probing address %08x\n", bases[current_base].address); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | #endif |
| 234 | if (bases[current_base].noauto) |
| 235 | continue; |
| 236 | base = ioremap(bases[current_base].address, 0x2000); |
| 237 | if (!base) |
| 238 | continue; |
| 239 | for (sig = 0; sig < NO_SIGNATURES; ++sig) { |
| 240 | if (check_signature(base + signatures[sig].offset, signatures[sig].string, strlen(signatures[sig].string))) { |
| 241 | addr = bases[current_base].address; |
| 242 | #if (DTCDEBUG & DTCDEBUG_INIT) |
Alan Cox | 5307b1e | 2007-09-20 15:12:11 +0100 | [diff] [blame] | 243 | printk(KERN_DEBUG "scsi-dtc : detected board.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | #endif |
| 245 | goto found; |
| 246 | } |
| 247 | } |
| 248 | iounmap(base); |
| 249 | } |
| 250 | |
| 251 | #if defined(DTCDEBUG) && (DTCDEBUG & DTCDEBUG_INIT) |
Alan Cox | 1fbe852 | 2007-08-10 14:50:41 -0700 | [diff] [blame] | 252 | printk(KERN_DEBUG "scsi-dtc : base = %08x\n", addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | #endif |
| 254 | |
| 255 | if (!addr) |
| 256 | break; |
| 257 | |
| 258 | found: |
| 259 | instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata)); |
| 260 | if (instance == NULL) |
| 261 | break; |
| 262 | |
| 263 | instance->base = addr; |
| 264 | ((struct NCR5380_hostdata *)(instance)->hostdata)->base = base; |
| 265 | |
| 266 | NCR5380_init(instance, 0); |
| 267 | |
| 268 | NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR); /* Enable int's */ |
| 269 | if (overrides[current_override].irq != IRQ_AUTO) |
| 270 | instance->irq = overrides[current_override].irq; |
| 271 | else |
| 272 | instance->irq = NCR5380_probe_irq(instance, DTC_IRQS); |
| 273 | |
| 274 | #ifndef DONT_USE_INTR |
| 275 | /* With interrupts enabled, it will sometimes hang when doing heavy |
| 276 | * reads. So better not enable them until I finger it out. */ |
| 277 | if (instance->irq != SCSI_IRQ_NONE) |
Michael Opdenacker | 4909cc2 | 2014-03-05 06:09:41 +0100 | [diff] [blame] | 278 | if (request_irq(instance->irq, dtc_intr, 0, |
Jeff Garzik | 1e64166 | 2007-11-11 19:52:05 -0500 | [diff] [blame] | 279 | "dtc", instance)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | printk(KERN_ERR "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); |
| 281 | instance->irq = SCSI_IRQ_NONE; |
| 282 | } |
| 283 | |
| 284 | if (instance->irq == SCSI_IRQ_NONE) { |
| 285 | printk(KERN_WARNING "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no); |
| 286 | printk(KERN_WARNING "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no); |
| 287 | } |
| 288 | #else |
| 289 | if (instance->irq != SCSI_IRQ_NONE) |
| 290 | printk(KERN_WARNING "scsi%d : interrupts not used. Might as well not jumper it.\n", instance->host_no); |
| 291 | instance->irq = SCSI_IRQ_NONE; |
| 292 | #endif |
| 293 | #if defined(DTCDEBUG) && (DTCDEBUG & DTCDEBUG_INIT) |
| 294 | printk("scsi%d : irq = %d\n", instance->host_no, instance->irq); |
| 295 | #endif |
| 296 | |
| 297 | printk(KERN_INFO "scsi%d : at 0x%05X", instance->host_no, (int) instance->base); |
| 298 | if (instance->irq == SCSI_IRQ_NONE) |
| 299 | printk(" interrupts disabled"); |
| 300 | else |
| 301 | printk(" irq %d", instance->irq); |
| 302 | printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", CAN_QUEUE, CMD_PER_LUN, DTC_PUBLIC_RELEASE); |
| 303 | NCR5380_print_options(instance); |
| 304 | printk("\n"); |
| 305 | |
| 306 | ++current_override; |
| 307 | ++count; |
| 308 | } |
| 309 | return count; |
| 310 | } |
| 311 | |
| 312 | /* |
| 313 | * Function : int dtc_biosparam(Disk * disk, struct block_device *dev, int *ip) |
| 314 | * |
| 315 | * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for |
| 316 | * the specified device / size. |
| 317 | * |
| 318 | * Inputs : size = size of device in sectors (512 bytes), dev = block device |
| 319 | * major / minor, ip[] = {heads, sectors, cylinders} |
| 320 | * |
| 321 | * Returns : always 0 (success), initializes ip |
| 322 | * |
| 323 | */ |
| 324 | |
| 325 | /* |
| 326 | * XXX Most SCSI boards use this mapping, I could be incorrect. Some one |
| 327 | * using hard disks on a trantor should verify that this mapping corresponds |
| 328 | * to that used by the BIOS / ASPI driver by running the linux fdisk program |
| 329 | * and matching the H_C_S coordinates to what DOS uses. |
| 330 | */ |
| 331 | |
| 332 | static int dtc_biosparam(struct scsi_device *sdev, struct block_device *dev, |
| 333 | sector_t capacity, int *ip) |
| 334 | { |
| 335 | int size = capacity; |
| 336 | |
| 337 | ip[0] = 64; |
| 338 | ip[1] = 32; |
| 339 | ip[2] = size >> 11; |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | |
| 344 | /**************************************************************** |
| 345 | * Function : int NCR5380_pread (struct Scsi_Host *instance, |
| 346 | * unsigned char *dst, int len) |
| 347 | * |
| 348 | * Purpose : Fast 5380 pseudo-dma read function, reads len bytes to |
| 349 | * dst |
| 350 | * |
| 351 | * Inputs : dst = destination, len = length in bytes |
| 352 | * |
| 353 | * Returns : 0 on success, non zero on a failure such as a watchdog |
| 354 | * timeout. |
| 355 | */ |
| 356 | |
| 357 | static int dtc_maxi = 0; |
| 358 | static int dtc_wmaxi = 0; |
| 359 | |
| 360 | static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len) |
| 361 | { |
| 362 | unsigned char *d = dst; |
| 363 | int i; /* For counting time spent in the poll-loop */ |
| 364 | NCR5380_local_declare(); |
| 365 | NCR5380_setup(instance); |
| 366 | |
| 367 | i = 0; |
| 368 | NCR5380_read(RESET_PARITY_INTERRUPT_REG); |
| 369 | NCR5380_write(MODE_REG, MR_ENABLE_EOP_INTR | MR_DMA_MODE); |
| 370 | if (instance->irq == SCSI_IRQ_NONE) |
| 371 | NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ); |
| 372 | else |
| 373 | NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ | CSR_INT_BASE); |
| 374 | NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */ |
| 375 | rtrc(1); |
| 376 | while (len > 0) { |
| 377 | rtrc(2); |
| 378 | while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY) |
| 379 | ++i; |
| 380 | rtrc(3); |
| 381 | memcpy_fromio(d, base + DTC_DATA_BUF, 128); |
| 382 | d += 128; |
| 383 | len -= 128; |
| 384 | rtrc(7); |
| 385 | /*** with int's on, it sometimes hangs after here. |
| 386 | * Looks like something makes HBNR go away. */ |
| 387 | } |
| 388 | rtrc(4); |
| 389 | while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS)) |
| 390 | ++i; |
| 391 | NCR5380_write(MODE_REG, 0); /* Clear the operating mode */ |
| 392 | rtrc(0); |
| 393 | NCR5380_read(RESET_PARITY_INTERRUPT_REG); |
| 394 | if (i > dtc_maxi) |
| 395 | dtc_maxi = i; |
| 396 | return (0); |
| 397 | } |
| 398 | |
| 399 | /**************************************************************** |
| 400 | * Function : int NCR5380_pwrite (struct Scsi_Host *instance, |
| 401 | * unsigned char *src, int len) |
| 402 | * |
| 403 | * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from |
| 404 | * src |
| 405 | * |
| 406 | * Inputs : src = source, len = length in bytes |
| 407 | * |
| 408 | * Returns : 0 on success, non zero on a failure such as a watchdog |
| 409 | * timeout. |
| 410 | */ |
| 411 | |
| 412 | static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len) |
| 413 | { |
| 414 | int i; |
| 415 | NCR5380_local_declare(); |
| 416 | NCR5380_setup(instance); |
| 417 | |
| 418 | NCR5380_read(RESET_PARITY_INTERRUPT_REG); |
| 419 | NCR5380_write(MODE_REG, MR_ENABLE_EOP_INTR | MR_DMA_MODE); |
| 420 | /* set direction (write) */ |
| 421 | if (instance->irq == SCSI_IRQ_NONE) |
| 422 | NCR5380_write(DTC_CONTROL_REG, 0); |
| 423 | else |
| 424 | NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR); |
| 425 | NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */ |
| 426 | for (i = 0; len > 0; ++i) { |
| 427 | rtrc(5); |
| 428 | /* Poll until the host buffer can accept data. */ |
| 429 | while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY) |
| 430 | ++i; |
| 431 | rtrc(3); |
| 432 | memcpy_toio(base + DTC_DATA_BUF, src, 128); |
| 433 | src += 128; |
| 434 | len -= 128; |
| 435 | } |
| 436 | rtrc(4); |
| 437 | while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS)) |
| 438 | ++i; |
| 439 | rtrc(6); |
| 440 | /* Wait until the last byte has been sent to the disk */ |
| 441 | while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT)) |
| 442 | ++i; |
| 443 | rtrc(7); |
| 444 | /* Check for parity error here. fixme. */ |
| 445 | NCR5380_write(MODE_REG, 0); /* Clear the operating mode */ |
| 446 | rtrc(0); |
| 447 | if (i > dtc_wmaxi) |
| 448 | dtc_wmaxi = i; |
| 449 | return (0); |
| 450 | } |
| 451 | |
| 452 | MODULE_LICENSE("GPL"); |
| 453 | |
| 454 | #include "NCR5380.c" |
| 455 | |
| 456 | static int dtc_release(struct Scsi_Host *shost) |
| 457 | { |
| 458 | NCR5380_local_declare(); |
| 459 | NCR5380_setup(shost); |
| 460 | if (shost->irq) |
Jeff Garzik | 1e64166 | 2007-11-11 19:52:05 -0500 | [diff] [blame] | 461 | free_irq(shost->irq, shost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | NCR5380_exit(shost); |
| 463 | if (shost->io_port && shost->n_io_port) |
| 464 | release_region(shost->io_port, shost->n_io_port); |
| 465 | scsi_unregister(shost); |
| 466 | iounmap(base); |
| 467 | return 0; |
| 468 | } |
| 469 | |
Christoph Hellwig | d0be4a7d | 2005-10-31 18:31:40 +0100 | [diff] [blame] | 470 | static struct scsi_host_template driver_template = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | .name = "DTC 3180/3280 ", |
| 472 | .detect = dtc_detect, |
| 473 | .release = dtc_release, |
| 474 | .queuecommand = dtc_queue_command, |
| 475 | .eh_abort_handler = dtc_abort, |
| 476 | .eh_bus_reset_handler = dtc_bus_reset, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | .bios_param = dtc_biosparam, |
| 478 | .can_queue = CAN_QUEUE, |
| 479 | .this_id = 7, |
| 480 | .sg_tablesize = SG_ALL, |
| 481 | .cmd_per_lun = CMD_PER_LUN, |
| 482 | .use_clustering = DISABLE_CLUSTERING, |
| 483 | }; |
| 484 | #include "scsi_module.c" |