Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Generic Generic NCR5380 driver |
| 3 | * |
| 4 | * Copyright 1995-2002, Russell King |
| 5 | */ |
| 6 | #include <linux/module.h> |
| 7 | #include <linux/signal.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | #include <linux/ioport.h> |
| 9 | #include <linux/delay.h> |
| 10 | #include <linux/blkdev.h> |
| 11 | #include <linux/init.h> |
| 12 | |
| 13 | #include <asm/ecard.h> |
| 14 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <asm/system.h> |
| 16 | |
| 17 | #include "../scsi.h" |
| 18 | #include <scsi/scsi_host.h> |
| 19 | |
| 20 | #include <scsi/scsicam.h> |
| 21 | |
| 22 | #define AUTOSENSE |
| 23 | #define PSEUDO_DMA |
| 24 | |
| 25 | #define CUMANASCSI_PUBLIC_RELEASE 1 |
| 26 | |
| 27 | #define NCR5380_implementation_fields int port, ctrl |
| 28 | #define NCR5380_local_declare() struct Scsi_Host *_instance |
| 29 | #define NCR5380_setup(instance) _instance = instance |
| 30 | #define NCR5380_read(reg) cumanascsi_read(_instance, reg) |
| 31 | #define NCR5380_write(reg, value) cumanascsi_write(_instance, reg, value) |
| 32 | #define NCR5380_intr cumanascsi_intr |
| 33 | #define NCR5380_queue_command cumanascsi_queue_command |
| 34 | #define NCR5380_proc_info cumanascsi_proc_info |
| 35 | |
| 36 | #define BOARD_NORMAL 0 |
| 37 | #define BOARD_NCR53C400 1 |
| 38 | |
| 39 | #include "../NCR5380.h" |
| 40 | |
| 41 | void cumanascsi_setup(char *str, int *ints) |
| 42 | { |
| 43 | } |
| 44 | |
| 45 | const char *cumanascsi_info(struct Scsi_Host *spnt) |
| 46 | { |
| 47 | return ""; |
| 48 | } |
| 49 | |
| 50 | #ifdef NOT_EFFICIENT |
| 51 | #define CTRL(p,v) outb(*ctrl = (v), (p) - 577) |
| 52 | #define STAT(p) inb((p)+1) |
| 53 | #define IN(p) inb((p)) |
| 54 | #define OUT(v,p) outb((v), (p)) |
| 55 | #else |
| 56 | #define CTRL(p,v) (p[-2308] = (*ctrl = (v))) |
| 57 | #define STAT(p) (p[4]) |
| 58 | #define IN(p) (*(p)) |
| 59 | #define IN2(p) ((unsigned short)(*(volatile unsigned long *)(p))) |
| 60 | #define OUT(v,p) (*(p) = (v)) |
| 61 | #define OUT2(v,p) (*((volatile unsigned long *)(p)) = (v)) |
| 62 | #endif |
| 63 | #define L(v) (((v)<<16)|((v) & 0x0000ffff)) |
| 64 | #define H(v) (((v)>>16)|((v) & 0xffff0000)) |
| 65 | |
| 66 | static inline int |
| 67 | NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr, int len) |
| 68 | { |
| 69 | int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; |
| 70 | int oldctrl = *ctrl; |
| 71 | unsigned long *laddr; |
| 72 | #ifdef NOT_EFFICIENT |
| 73 | int iobase = instance->io_port; |
| 74 | int dma_io = iobase & ~(0x3C0000>>2); |
| 75 | #else |
| 76 | volatile unsigned char *iobase = (unsigned char *)ioaddr(instance->io_port); |
| 77 | volatile unsigned char *dma_io = (unsigned char *)((int)iobase & ~0x3C0000); |
| 78 | #endif |
| 79 | |
| 80 | if(!len) return 0; |
| 81 | |
| 82 | CTRL(iobase, 0x02); |
| 83 | laddr = (unsigned long *)addr; |
| 84 | while(len >= 32) |
| 85 | { |
| 86 | int status; |
| 87 | unsigned long v; |
| 88 | status = STAT(iobase); |
| 89 | if(status & 0x80) |
| 90 | goto end; |
| 91 | if(!(status & 0x40)) |
| 92 | continue; |
| 93 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 94 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 95 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 96 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 97 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 98 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 99 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 100 | v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); |
| 101 | len -= 32; |
| 102 | if(len == 0) |
| 103 | break; |
| 104 | } |
| 105 | |
| 106 | addr = (unsigned char *)laddr; |
| 107 | CTRL(iobase, 0x12); |
| 108 | while(len > 0) |
| 109 | { |
| 110 | int status; |
| 111 | status = STAT(iobase); |
| 112 | if(status & 0x80) |
| 113 | goto end; |
| 114 | if(status & 0x40) |
| 115 | { |
| 116 | OUT(*addr++, dma_io); |
| 117 | if(--len == 0) |
| 118 | break; |
| 119 | } |
| 120 | |
| 121 | status = STAT(iobase); |
| 122 | if(status & 0x80) |
| 123 | goto end; |
| 124 | if(status & 0x40) |
| 125 | { |
| 126 | OUT(*addr++, dma_io); |
| 127 | if(--len == 0) |
| 128 | break; |
| 129 | } |
| 130 | } |
| 131 | end: |
| 132 | CTRL(iobase, oldctrl|0x40); |
| 133 | return len; |
| 134 | } |
| 135 | |
| 136 | static inline int |
| 137 | NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr, int len) |
| 138 | { |
| 139 | int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; |
| 140 | int oldctrl = *ctrl; |
| 141 | unsigned long *laddr; |
| 142 | #ifdef NOT_EFFICIENT |
| 143 | int iobase = instance->io_port; |
| 144 | int dma_io = iobase & ~(0x3C0000>>2); |
| 145 | #else |
| 146 | volatile unsigned char *iobase = (unsigned char *)ioaddr(instance->io_port); |
| 147 | volatile unsigned char *dma_io = (unsigned char *)((int)iobase & ~0x3C0000); |
| 148 | #endif |
| 149 | |
| 150 | if(!len) return 0; |
| 151 | |
| 152 | CTRL(iobase, 0x00); |
| 153 | laddr = (unsigned long *)addr; |
| 154 | while(len >= 32) |
| 155 | { |
| 156 | int status; |
| 157 | status = STAT(iobase); |
| 158 | if(status & 0x80) |
| 159 | goto end; |
| 160 | if(!(status & 0x40)) |
| 161 | continue; |
| 162 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 163 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 164 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 165 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 166 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 167 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 168 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 169 | *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); |
| 170 | len -= 32; |
| 171 | if(len == 0) |
| 172 | break; |
| 173 | } |
| 174 | |
| 175 | addr = (unsigned char *)laddr; |
| 176 | CTRL(iobase, 0x10); |
| 177 | while(len > 0) |
| 178 | { |
| 179 | int status; |
| 180 | status = STAT(iobase); |
| 181 | if(status & 0x80) |
| 182 | goto end; |
| 183 | if(status & 0x40) |
| 184 | { |
| 185 | *addr++ = IN(dma_io); |
| 186 | if(--len == 0) |
| 187 | break; |
| 188 | } |
| 189 | |
| 190 | status = STAT(iobase); |
| 191 | if(status & 0x80) |
| 192 | goto end; |
| 193 | if(status & 0x40) |
| 194 | { |
| 195 | *addr++ = IN(dma_io); |
| 196 | if(--len == 0) |
| 197 | break; |
| 198 | } |
| 199 | } |
| 200 | end: |
| 201 | CTRL(iobase, oldctrl|0x40); |
| 202 | return len; |
| 203 | } |
| 204 | |
| 205 | #undef STAT |
| 206 | #undef CTRL |
| 207 | #undef IN |
| 208 | #undef OUT |
| 209 | |
| 210 | #define CTRL(p,v) outb(*ctrl = (v), (p) - 577) |
| 211 | |
| 212 | static char cumanascsi_read(struct Scsi_Host *instance, int reg) |
| 213 | { |
| 214 | unsigned int iobase = instance->io_port; |
| 215 | int i; |
| 216 | int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; |
| 217 | |
| 218 | CTRL(iobase, 0); |
| 219 | i = inb(iobase + 64 + reg); |
| 220 | CTRL(iobase, 0x40); |
| 221 | |
| 222 | return i; |
| 223 | } |
| 224 | |
| 225 | static void cumanascsi_write(struct Scsi_Host *instance, int reg, int value) |
| 226 | { |
| 227 | int iobase = instance->io_port; |
| 228 | int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; |
| 229 | |
| 230 | CTRL(iobase, 0); |
| 231 | outb(value, iobase + 64 + reg); |
| 232 | CTRL(iobase, 0x40); |
| 233 | } |
| 234 | |
| 235 | #undef CTRL |
| 236 | |
| 237 | #include "../NCR5380.c" |
| 238 | |
Christoph Hellwig | d0be4a7d | 2005-10-31 18:31:40 +0100 | [diff] [blame] | 239 | static struct scsi_host_template cumanascsi_template = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | .module = THIS_MODULE, |
| 241 | .name = "Cumana 16-bit SCSI", |
| 242 | .info = cumanascsi_info, |
| 243 | .queuecommand = cumanascsi_queue_command, |
| 244 | .eh_abort_handler = NCR5380_abort, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | .eh_bus_reset_handler = NCR5380_bus_reset, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | .can_queue = 16, |
| 247 | .this_id = 7, |
| 248 | .sg_tablesize = SG_ALL, |
| 249 | .cmd_per_lun = 2, |
| 250 | .unchecked_isa_dma = 0, |
| 251 | .use_clustering = DISABLE_CLUSTERING, |
| 252 | .proc_name = "CumanaSCSI-1", |
| 253 | }; |
| 254 | |
| 255 | static int __devinit |
| 256 | cumanascsi1_probe(struct expansion_card *ec, const struct ecard_id *id) |
| 257 | { |
| 258 | struct Scsi_Host *host; |
| 259 | int ret = -ENOMEM; |
| 260 | |
| 261 | host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata)); |
| 262 | if (!host) |
| 263 | goto out; |
| 264 | |
| 265 | host->io_port = ecard_address(ec, ECARD_IOC, ECARD_SLOW) + 0x800; |
| 266 | host->irq = ec->irq; |
| 267 | |
| 268 | NCR5380_init(host, 0); |
| 269 | |
| 270 | host->n_io_port = 255; |
| 271 | if (!(request_region(host->io_port, host->n_io_port, "CumanaSCSI-1"))) { |
| 272 | ret = -EBUSY; |
| 273 | goto out_free; |
| 274 | } |
| 275 | |
| 276 | ((struct NCR5380_hostdata *)host->hostdata)->ctrl = 0; |
| 277 | outb(0x00, host->io_port - 577); |
| 278 | |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 279 | ret = request_irq(host->irq, cumanascsi_intr, IRQF_DISABLED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | "CumanaSCSI-1", host); |
| 281 | if (ret) { |
| 282 | printk("scsi%d: IRQ%d not free: %d\n", |
| 283 | host->host_no, host->irq, ret); |
| 284 | goto out_release; |
| 285 | } |
| 286 | |
| 287 | printk("scsi%d: at port 0x%08lx irq %d", |
| 288 | host->host_no, host->io_port, host->irq); |
| 289 | printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", |
| 290 | host->can_queue, host->cmd_per_lun, CUMANASCSI_PUBLIC_RELEASE); |
| 291 | printk("\nscsi%d:", host->host_no); |
| 292 | NCR5380_print_options(host); |
| 293 | printk("\n"); |
| 294 | |
| 295 | ret = scsi_add_host(host, &ec->dev); |
| 296 | if (ret) |
| 297 | goto out_free_irq; |
| 298 | |
| 299 | scsi_scan_host(host); |
| 300 | goto out; |
| 301 | |
| 302 | out_free_irq: |
| 303 | free_irq(host->irq, host); |
| 304 | out_release: |
| 305 | release_region(host->io_port, host->n_io_port); |
| 306 | out_free: |
| 307 | scsi_host_put(host); |
| 308 | out: |
| 309 | return ret; |
| 310 | } |
| 311 | |
| 312 | static void __devexit cumanascsi1_remove(struct expansion_card *ec) |
| 313 | { |
| 314 | struct Scsi_Host *host = ecard_get_drvdata(ec); |
| 315 | |
| 316 | ecard_set_drvdata(ec, NULL); |
| 317 | |
| 318 | scsi_remove_host(host); |
| 319 | free_irq(host->irq, host); |
| 320 | NCR5380_exit(host); |
| 321 | release_region(host->io_port, host->n_io_port); |
| 322 | scsi_host_put(host); |
| 323 | } |
| 324 | |
| 325 | static const struct ecard_id cumanascsi1_cids[] = { |
| 326 | { MANU_CUMANA, PROD_CUMANA_SCSI_1 }, |
| 327 | { 0xffff, 0xffff } |
| 328 | }; |
| 329 | |
| 330 | static struct ecard_driver cumanascsi1_driver = { |
| 331 | .probe = cumanascsi1_probe, |
| 332 | .remove = __devexit_p(cumanascsi1_remove), |
| 333 | .id_table = cumanascsi1_cids, |
| 334 | .drv = { |
| 335 | .name = "cumanascsi1", |
| 336 | }, |
| 337 | }; |
| 338 | |
| 339 | static int __init cumanascsi_init(void) |
| 340 | { |
| 341 | return ecard_register_driver(&cumanascsi1_driver); |
| 342 | } |
| 343 | |
| 344 | static void __exit cumanascsi_exit(void) |
| 345 | { |
| 346 | ecard_remove_driver(&cumanascsi1_driver); |
| 347 | } |
| 348 | |
| 349 | module_init(cumanascsi_init); |
| 350 | module_exit(cumanascsi_exit); |
| 351 | |
| 352 | MODULE_DESCRIPTION("Cumana SCSI-1 driver for Acorn machines"); |
| 353 | MODULE_LICENSE("GPL"); |