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e887afc9 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Denis Peter, MPL AG Switzerland | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | * | |
23 | * | |
24 | * | |
25 | */ | |
26 | ||
27 | /* | |
28 | * SCSI support. | |
29 | */ | |
e887afc9 WD |
30 | #include <common.h> |
31 | #include <command.h> | |
e887afc9 WD |
32 | #include <asm/processor.h> |
33 | #include <scsi.h> | |
34 | #include <image.h> | |
e887afc9 WD |
35 | #include <pci.h> |
36 | ||
e887afc9 WD |
37 | #ifdef CONFIG_SCSI_SYM53C8XX |
38 | #define SCSI_VEND_ID 0x1000 | |
39 | #ifndef CONFIG_SCSI_DEV_ID | |
40 | #define SCSI_DEV_ID 0x0001 | |
41 | #else | |
42 | #define SCSI_DEV_ID CONFIG_SCSI_DEV_ID | |
43 | #endif | |
4782ac80 JZ |
44 | #elif defined CONFIG_SATA_ULI5288 |
45 | ||
46 | #define SCSI_VEND_ID 0x10b9 | |
47 | #define SCSI_DEV_ID 0x5288 | |
48 | ||
e887afc9 | 49 | #else |
4782ac80 | 50 | #error no scsi device defined |
e887afc9 WD |
51 | #endif |
52 | ||
53 | ||
54 | static ccb tempccb; /* temporary scsi command buffer */ | |
55 | ||
56 | static unsigned char tempbuff[512]; /* temporary data buffer */ | |
57 | ||
58 | static int scsi_max_devs; /* number of highest available scsi device */ | |
59 | ||
60 | static int scsi_curr_dev; /* current device */ | |
61 | ||
62 | static block_dev_desc_t scsi_dev_desc[CFG_SCSI_MAX_DEVICE]; | |
63 | ||
64 | /******************************************************************************** | |
65 | * forward declerations of some Setup Routines | |
66 | */ | |
67 | void scsi_setup_test_unit_ready(ccb * pccb); | |
68 | void scsi_setup_read_capacity(ccb * pccb); | |
69 | void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks); | |
70 | void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks); | |
71 | void scsi_setup_inquiry(ccb * pccb); | |
72 | void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len); | |
73 | ||
74 | ||
eb867a76 | 75 | ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer); |
e887afc9 WD |
76 | |
77 | ||
78 | /********************************************************************************* | |
79 | * (re)-scan the scsi bus and reports scsi device info | |
80 | * to the user if mode = 1 | |
81 | */ | |
82 | void scsi_scan(int mode) | |
83 | { | |
84 | unsigned char i,perq,modi,lun; | |
85 | unsigned long capacity,blksz; | |
86 | ccb* pccb=(ccb *)&tempccb; | |
87 | ||
88 | if(mode==1) { | |
89 | printf("scanning bus for devices...\n"); | |
90 | } | |
91 | for(i=0;i<CFG_SCSI_MAX_DEVICE;i++) { | |
92 | scsi_dev_desc[i].target=0xff; | |
93 | scsi_dev_desc[i].lun=0xff; | |
94 | scsi_dev_desc[i].lba=0; | |
95 | scsi_dev_desc[i].blksz=0; | |
96 | scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN; | |
97 | scsi_dev_desc[i].vendor[0]=0; | |
98 | scsi_dev_desc[i].product[0]=0; | |
99 | scsi_dev_desc[i].revision[0]=0; | |
100 | scsi_dev_desc[i].removable=FALSE; | |
101 | scsi_dev_desc[i].if_type=IF_TYPE_SCSI; | |
102 | scsi_dev_desc[i].dev=i; | |
103 | scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN; | |
104 | scsi_dev_desc[i].block_read=scsi_read; | |
105 | } | |
106 | scsi_max_devs=0; | |
107 | for(i=0;i<CFG_SCSI_MAX_SCSI_ID;i++) { | |
108 | pccb->target=i; | |
109 | for(lun=0;lun<CFG_SCSI_MAX_LUN;lun++) { | |
110 | pccb->lun=lun; | |
111 | pccb->pdata=(unsigned char *)&tempbuff; | |
112 | pccb->datalen=512; | |
113 | scsi_setup_inquiry(pccb); | |
114 | if(scsi_exec(pccb)!=TRUE) { | |
115 | if(pccb->contr_stat==SCSI_SEL_TIME_OUT) { | |
1a344f29 | 116 | debug ("Selection timeout ID %d\n",pccb->target); |
e887afc9 WD |
117 | continue; /* selection timeout => assuming no device present */ |
118 | } | |
119 | scsi_print_error(pccb); | |
120 | continue; | |
121 | } | |
122 | perq=tempbuff[0]; | |
123 | modi=tempbuff[1]; | |
124 | if((perq & 0x1f)==0x1f) { | |
125 | continue; /* skip unknown devices */ | |
126 | } | |
127 | if((modi&0x80)==0x80) /* drive is removable */ | |
128 | scsi_dev_desc[scsi_max_devs].removable=TRUE; | |
129 | /* get info for this device */ | |
2309c130 SR |
130 | scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0], |
131 | &tempbuff[8], 8); | |
132 | scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0], | |
133 | &tempbuff[16], 16); | |
134 | scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0], | |
135 | &tempbuff[32], 4); | |
e887afc9 WD |
136 | scsi_dev_desc[scsi_max_devs].target=pccb->target; |
137 | scsi_dev_desc[scsi_max_devs].lun=pccb->lun; | |
138 | ||
139 | pccb->datalen=0; | |
140 | scsi_setup_test_unit_ready(pccb); | |
141 | if(scsi_exec(pccb)!=TRUE) { | |
142 | if(scsi_dev_desc[scsi_max_devs].removable==TRUE) { | |
143 | scsi_dev_desc[scsi_max_devs].type=perq; | |
144 | goto removable; | |
145 | } | |
146 | scsi_print_error(pccb); | |
147 | continue; | |
148 | } | |
149 | pccb->datalen=8; | |
150 | scsi_setup_read_capacity(pccb); | |
151 | if(scsi_exec(pccb)!=TRUE) { | |
152 | scsi_print_error(pccb); | |
153 | continue; | |
154 | } | |
155 | capacity=((unsigned long)tempbuff[0]<<24)|((unsigned long)tempbuff[1]<<16)| | |
156 | ((unsigned long)tempbuff[2]<<8)|((unsigned long)tempbuff[3]); | |
157 | blksz=((unsigned long)tempbuff[4]<<24)|((unsigned long)tempbuff[5]<<16)| | |
158 | ((unsigned long)tempbuff[6]<<8)|((unsigned long)tempbuff[7]); | |
159 | scsi_dev_desc[scsi_max_devs].lba=capacity; | |
160 | scsi_dev_desc[scsi_max_devs].blksz=blksz; | |
161 | scsi_dev_desc[scsi_max_devs].type=perq; | |
162 | init_part(&scsi_dev_desc[scsi_max_devs]); | |
163 | removable: | |
164 | if(mode==1) { | |
165 | printf (" Device %d: ", scsi_max_devs); | |
166 | dev_print(&scsi_dev_desc[scsi_max_devs]); | |
167 | } /* if mode */ | |
168 | scsi_max_devs++; | |
169 | } /* next LUN */ | |
170 | } | |
171 | if(scsi_max_devs>0) | |
172 | scsi_curr_dev=0; | |
173 | else | |
174 | scsi_curr_dev=-1; | |
175 | } | |
176 | ||
177 | ||
e887afc9 WD |
178 | void scsi_init(void) |
179 | { | |
180 | int busdevfunc; | |
181 | ||
182 | busdevfunc=pci_find_device(SCSI_VEND_ID,SCSI_DEV_ID,0); /* get PCI Device ID */ | |
183 | if(busdevfunc==-1) { | |
184 | printf("Error SCSI Controller (%04X,%04X) not found\n",SCSI_VEND_ID,SCSI_DEV_ID); | |
185 | return; | |
186 | } | |
187 | #ifdef DEBUG | |
188 | else { | |
189 | printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",SCSI_VEND_ID,SCSI_DEV_ID,(busdevfunc>>16)&0xFF,(busdevfunc>>11)&0x1F,(busdevfunc>>8)&0x7); | |
190 | } | |
191 | #endif | |
192 | scsi_low_level_init(busdevfunc); | |
193 | scsi_scan(1); | |
194 | } | |
195 | ||
196 | block_dev_desc_t * scsi_get_dev(int dev) | |
197 | { | |
735dd97b | 198 | return (dev < CFG_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL; |
e887afc9 WD |
199 | } |
200 | ||
201 | ||
e887afc9 WD |
202 | /****************************************************************************** |
203 | * scsi boot command intepreter. Derived from diskboot | |
204 | */ | |
205 | int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
206 | { | |
207 | char *boot_device = NULL; | |
208 | char *ep; | |
209 | int dev, part = 0; | |
b97a2a0a | 210 | ulong addr, cnt; |
e887afc9 WD |
211 | disk_partition_t info; |
212 | image_header_t *hdr; | |
213 | int rcode = 0; | |
09475f75 MB |
214 | #if defined(CONFIG_FIT) |
215 | const void *fit_hdr; | |
216 | #endif | |
e887afc9 WD |
217 | |
218 | switch (argc) { | |
219 | case 1: | |
220 | addr = CFG_LOAD_ADDR; | |
221 | boot_device = getenv ("bootdevice"); | |
222 | break; | |
223 | case 2: | |
224 | addr = simple_strtoul(argv[1], NULL, 16); | |
225 | boot_device = getenv ("bootdevice"); | |
226 | break; | |
227 | case 3: | |
228 | addr = simple_strtoul(argv[1], NULL, 16); | |
229 | boot_device = argv[2]; | |
230 | break; | |
231 | default: | |
232 | printf ("Usage:\n%s\n", cmdtp->usage); | |
233 | return 1; | |
234 | } | |
235 | ||
236 | if (!boot_device) { | |
237 | puts ("\n** No boot device **\n"); | |
238 | return 1; | |
239 | } | |
240 | ||
241 | dev = simple_strtoul(boot_device, &ep, 16); | |
242 | printf("booting from dev %d\n",dev); | |
243 | if (scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) { | |
244 | printf ("\n** Device %d not available\n", dev); | |
245 | return 1; | |
246 | } | |
247 | ||
248 | if (*ep) { | |
249 | if (*ep != ':') { | |
250 | puts ("\n** Invalid boot device, use `dev[:part]' **\n"); | |
251 | return 1; | |
252 | } | |
253 | part = simple_strtoul(++ep, NULL, 16); | |
254 | } | |
7882751c | 255 | if (get_partition_info (&scsi_dev_desc[dev], part, &info)) { |
e887afc9 WD |
256 | printf("error reading partinfo\n"); |
257 | return 1; | |
258 | } | |
77ddac94 WD |
259 | if ((strncmp((char *)(info.type), BOOT_PART_TYPE, sizeof(info.type)) != 0) && |
260 | (strncmp((char *)(info.type), BOOT_PART_COMP, sizeof(info.type)) != 0)) { | |
e887afc9 WD |
261 | printf ("\n** Invalid partition type \"%.32s\"" |
262 | " (expect \"" BOOT_PART_TYPE "\")\n", | |
263 | info.type); | |
264 | return 1; | |
265 | } | |
266 | ||
267 | printf ("\nLoading from SCSI device %d, partition %d: " | |
268 | "Name: %.32s Type: %.32s\n", | |
269 | dev, part, info.name, info.type); | |
270 | ||
1a344f29 | 271 | debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n", |
e887afc9 WD |
272 | info.start, info.size, info.blksz); |
273 | ||
274 | if (scsi_read (dev, info.start, 1, (ulong *)addr) != 1) { | |
275 | printf ("** Read error on %d:%d\n", dev, part); | |
276 | return 1; | |
277 | } | |
278 | ||
9a4daad0 | 279 | switch (genimg_get_format ((void *)addr)) { |
d5934ad7 MB |
280 | case IMAGE_FORMAT_LEGACY: |
281 | hdr = (image_header_t *)addr; | |
e887afc9 | 282 | |
d5934ad7 MB |
283 | if (!image_check_hcrc (hdr)) { |
284 | puts ("\n** Bad Header Checksum **\n"); | |
285 | return 1; | |
286 | } | |
287 | ||
288 | image_print_contents (hdr); | |
289 | cnt = image_get_image_size (hdr); | |
290 | break; | |
291 | #if defined(CONFIG_FIT) | |
292 | case IMAGE_FORMAT_FIT: | |
09475f75 MB |
293 | fit_hdr = (const void *)addr; |
294 | if (!fit_check_format (fit_hdr)) { | |
295 | puts ("** Bad FIT image format\n"); | |
296 | return 1; | |
297 | } | |
298 | puts ("Fit image detected...\n"); | |
299 | ||
300 | cnt = fit_get_size (fit_hdr); | |
301 | break; | |
d5934ad7 MB |
302 | #endif |
303 | default: | |
304 | puts ("** Unknown image type\n"); | |
1a344f29 WD |
305 | return 1; |
306 | } | |
307 | ||
1a344f29 WD |
308 | cnt += info.blksz - 1; |
309 | cnt /= info.blksz; | |
310 | cnt -= 1; | |
311 | ||
e887afc9 WD |
312 | if (scsi_read (dev, info.start+1, cnt, |
313 | (ulong *)(addr+info.blksz)) != cnt) { | |
314 | printf ("** Read error on %d:%d\n", dev, part); | |
315 | return 1; | |
316 | } | |
09475f75 MB |
317 | |
318 | #if defined(CONFIG_FIT) | |
319 | /* This cannot be done earlier, we need complete FIT image in RAM first */ | |
320 | if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) | |
321 | fit_print_contents ((const void *)addr); | |
322 | #endif | |
323 | ||
e887afc9 WD |
324 | /* Loading ok, update default load address */ |
325 | load_addr = addr; | |
326 | ||
327 | flush_cache (addr, (cnt+1)*info.blksz); | |
328 | ||
329 | /* Check if we should attempt an auto-start */ | |
330 | if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) { | |
331 | char *local_args[2]; | |
332 | extern int do_bootm (cmd_tbl_t *, int, int, char *[]); | |
333 | local_args[0] = argv[0]; | |
334 | local_args[1] = NULL; | |
335 | printf ("Automatic boot of image at addr 0x%08lX ...\n", addr); | |
336 | rcode = do_bootm (cmdtp, 0, 1, local_args); | |
337 | } | |
338 | return rcode; | |
339 | } | |
340 | ||
341 | /********************************************************************************* | |
342 | * scsi command intepreter | |
343 | */ | |
344 | int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
345 | { | |
346 | switch (argc) { | |
347 | case 0: | |
348 | case 1: printf ("Usage:\n%s\n", cmdtp->usage); return 1; | |
349 | case 2: | |
350 | if (strncmp(argv[1],"res",3) == 0) { | |
351 | printf("\nReset SCSI\n"); | |
352 | scsi_bus_reset(); | |
353 | scsi_scan(1); | |
354 | return 0; | |
355 | } | |
356 | if (strncmp(argv[1],"inf",3) == 0) { | |
357 | int i; | |
358 | for (i=0; i<CFG_SCSI_MAX_DEVICE; ++i) { | |
359 | if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN) | |
360 | continue; /* list only known devices */ | |
361 | printf ("SCSI dev. %d: ", i); | |
362 | dev_print(&scsi_dev_desc[i]); | |
363 | } | |
364 | return 0; | |
365 | } | |
366 | if (strncmp(argv[1],"dev",3) == 0) { | |
367 | if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CFG_SCSI_MAX_DEVICE)) { | |
368 | printf("\nno SCSI devices available\n"); | |
369 | return 1; | |
370 | } | |
371 | printf ("\n Device %d: ", scsi_curr_dev); | |
372 | dev_print(&scsi_dev_desc[scsi_curr_dev]); | |
373 | return 0; | |
374 | } | |
375 | if (strncmp(argv[1],"scan",4) == 0) { | |
376 | scsi_scan(1); | |
377 | return 0; | |
378 | } | |
379 | if (strncmp(argv[1],"part",4) == 0) { | |
380 | int dev, ok; | |
381 | for (ok=0, dev=0; dev<CFG_SCSI_MAX_DEVICE; ++dev) { | |
382 | if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) { | |
383 | ok++; | |
384 | if (dev) | |
385 | printf("\n"); | |
1a344f29 | 386 | debug ("print_part of %x\n",dev); |
e887afc9 WD |
387 | print_part(&scsi_dev_desc[dev]); |
388 | } | |
389 | } | |
390 | if (!ok) | |
391 | printf("\nno SCSI devices available\n"); | |
392 | return 1; | |
393 | } | |
394 | printf ("Usage:\n%s\n", cmdtp->usage); | |
395 | return 1; | |
396 | case 3: | |
397 | if (strncmp(argv[1],"dev",3) == 0) { | |
398 | int dev = (int)simple_strtoul(argv[2], NULL, 10); | |
399 | printf ("\nSCSI device %d: ", dev); | |
400 | if (dev >= CFG_SCSI_MAX_DEVICE) { | |
401 | printf("unknown device\n"); | |
402 | return 1; | |
403 | } | |
404 | printf ("\n Device %d: ", dev); | |
405 | dev_print(&scsi_dev_desc[dev]); | |
406 | if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) { | |
407 | return 1; | |
408 | } | |
409 | scsi_curr_dev = dev; | |
410 | printf("... is now current device\n"); | |
411 | return 0; | |
412 | } | |
413 | if (strncmp(argv[1],"part",4) == 0) { | |
414 | int dev = (int)simple_strtoul(argv[2], NULL, 10); | |
415 | if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) { | |
416 | print_part(&scsi_dev_desc[dev]); | |
417 | } | |
418 | else { | |
419 | printf ("\nSCSI device %d not available\n", dev); | |
420 | } | |
421 | return 1; | |
422 | } | |
423 | printf ("Usage:\n%s\n", cmdtp->usage); | |
424 | return 1; | |
425 | default: | |
426 | /* at least 4 args */ | |
427 | if (strcmp(argv[1],"read") == 0) { | |
428 | ulong addr = simple_strtoul(argv[2], NULL, 16); | |
429 | ulong blk = simple_strtoul(argv[3], NULL, 16); | |
430 | ulong cnt = simple_strtoul(argv[4], NULL, 16); | |
431 | ulong n; | |
432 | printf ("\nSCSI read: device %d block # %ld, count %ld ... ", | |
433 | scsi_curr_dev, blk, cnt); | |
434 | n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr); | |
435 | printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR"); | |
436 | return 0; | |
437 | } | |
438 | } /* switch */ | |
439 | printf ("Usage:\n%s\n", cmdtp->usage); | |
440 | return 1; | |
441 | } | |
442 | ||
443 | /**************************************************************************************** | |
444 | * scsi_read | |
445 | */ | |
446 | ||
447 | #define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */ | |
448 | ||
eb867a76 | 449 | ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer) |
e887afc9 WD |
450 | { |
451 | ulong start,blks, buf_addr; | |
452 | unsigned short smallblks; | |
453 | ccb* pccb=(ccb *)&tempccb; | |
454 | device&=0xff; | |
455 | /* Setup device | |
456 | */ | |
457 | pccb->target=scsi_dev_desc[device].target; | |
458 | pccb->lun=scsi_dev_desc[device].lun; | |
459 | buf_addr=(unsigned long)buffer; | |
460 | start=blknr; | |
461 | blks=blkcnt; | |
1a344f29 | 462 | debug ("\nscsi_read: dev %d startblk %lx, blccnt %lx buffer %lx\n",device,start,blks,(unsigned long)buffer); |
e887afc9 WD |
463 | do { |
464 | pccb->pdata=(unsigned char *)buf_addr; | |
465 | if(blks>SCSI_MAX_READ_BLK) { | |
466 | pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK; | |
467 | smallblks=SCSI_MAX_READ_BLK; | |
468 | scsi_setup_read_ext(pccb,start,smallblks); | |
469 | start+=SCSI_MAX_READ_BLK; | |
470 | blks-=SCSI_MAX_READ_BLK; | |
471 | } | |
472 | else { | |
473 | pccb->datalen=scsi_dev_desc[device].blksz * blks; | |
474 | smallblks=(unsigned short) blks; | |
475 | scsi_setup_read_ext(pccb,start,smallblks); | |
476 | start+=blks; | |
477 | blks=0; | |
478 | } | |
1a344f29 | 479 | debug ("scsi_read_ext: startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr); |
e887afc9 WD |
480 | if(scsi_exec(pccb)!=TRUE) { |
481 | scsi_print_error(pccb); | |
482 | blkcnt-=blks; | |
483 | break; | |
484 | } | |
485 | buf_addr+=pccb->datalen; | |
486 | } while(blks!=0); | |
1a344f29 | 487 | debug ("scsi_read_ext: end startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr); |
e887afc9 WD |
488 | return(blkcnt); |
489 | } | |
490 | ||
491 | /* copy src to dest, skipping leading and trailing blanks | |
492 | * and null terminate the string | |
493 | */ | |
494 | void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len) | |
495 | { | |
496 | int start,end; | |
497 | ||
498 | start=0; | |
499 | while(start<len) { | |
500 | if(src[start]!=' ') | |
501 | break; | |
502 | start++; | |
503 | } | |
504 | end=len-1; | |
505 | while(end>start) { | |
506 | if(src[end]!=' ') | |
507 | break; | |
508 | end--; | |
509 | } | |
510 | for( ; start<=end; start++) { | |
511 | *dest++=src[start]; | |
512 | } | |
513 | *dest='\0'; | |
514 | } | |
515 | ||
516 | ||
e887afc9 WD |
517 | /* Trim trailing blanks, and NUL-terminate string |
518 | */ | |
519 | void scsi_trim_trail (unsigned char *str, unsigned int len) | |
520 | { | |
521 | unsigned char *p = str + len - 1; | |
522 | ||
523 | while (len-- > 0) { | |
524 | *p-- = '\0'; | |
525 | if (*p != ' ') { | |
526 | return; | |
527 | } | |
528 | } | |
529 | } | |
530 | ||
531 | ||
532 | /************************************************************************************ | |
533 | * Some setup (fill-in) routines | |
534 | */ | |
535 | void scsi_setup_test_unit_ready(ccb * pccb) | |
536 | { | |
537 | pccb->cmd[0]=SCSI_TST_U_RDY; | |
538 | pccb->cmd[1]=pccb->lun<<5; | |
539 | pccb->cmd[2]=0; | |
540 | pccb->cmd[3]=0; | |
541 | pccb->cmd[4]=0; | |
542 | pccb->cmd[5]=0; | |
543 | pccb->cmdlen=6; | |
544 | pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ | |
545 | } | |
546 | ||
547 | void scsi_setup_read_capacity(ccb * pccb) | |
548 | { | |
549 | pccb->cmd[0]=SCSI_RD_CAPAC; | |
550 | pccb->cmd[1]=pccb->lun<<5; | |
551 | pccb->cmd[2]=0; | |
552 | pccb->cmd[3]=0; | |
553 | pccb->cmd[4]=0; | |
554 | pccb->cmd[5]=0; | |
555 | pccb->cmd[6]=0; | |
556 | pccb->cmd[7]=0; | |
557 | pccb->cmd[8]=0; | |
558 | pccb->cmd[9]=0; | |
559 | pccb->cmdlen=10; | |
560 | pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ | |
561 | ||
562 | } | |
563 | ||
564 | void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks) | |
565 | { | |
566 | pccb->cmd[0]=SCSI_READ10; | |
567 | pccb->cmd[1]=pccb->lun<<5; | |
568 | pccb->cmd[2]=((unsigned char) (start>>24))&0xff; | |
569 | pccb->cmd[3]=((unsigned char) (start>>16))&0xff; | |
570 | pccb->cmd[4]=((unsigned char) (start>>8))&0xff; | |
571 | pccb->cmd[5]=((unsigned char) (start))&0xff; | |
572 | pccb->cmd[6]=0; | |
573 | pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff; | |
574 | pccb->cmd[8]=(unsigned char) blocks & 0xff; | |
575 | pccb->cmd[6]=0; | |
576 | pccb->cmdlen=10; | |
577 | pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ | |
1a344f29 | 578 | debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", |
e887afc9 WD |
579 | pccb->cmd[0],pccb->cmd[1], |
580 | pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5], | |
581 | pccb->cmd[7],pccb->cmd[8]); | |
582 | } | |
583 | ||
584 | void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks) | |
585 | { | |
586 | pccb->cmd[0]=SCSI_READ6; | |
587 | pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f); | |
588 | pccb->cmd[2]=((unsigned char) (start>>8))&0xff; | |
589 | pccb->cmd[3]=((unsigned char) (start))&0xff; | |
590 | pccb->cmd[4]=(unsigned char) blocks & 0xff; | |
591 | pccb->cmd[5]=0; | |
592 | pccb->cmdlen=6; | |
593 | pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ | |
1a344f29 | 594 | debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n", |
e887afc9 WD |
595 | pccb->cmd[0],pccb->cmd[1], |
596 | pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]); | |
597 | } | |
598 | ||
599 | ||
600 | void scsi_setup_inquiry(ccb * pccb) | |
601 | { | |
602 | pccb->cmd[0]=SCSI_INQUIRY; | |
603 | pccb->cmd[1]=pccb->lun<<5; | |
604 | pccb->cmd[2]=0; | |
605 | pccb->cmd[3]=0; | |
606 | if(pccb->datalen>255) | |
607 | pccb->cmd[4]=255; | |
608 | else | |
609 | pccb->cmd[4]=(unsigned char)pccb->datalen; | |
610 | pccb->cmd[5]=0; | |
611 | pccb->cmdlen=6; | |
612 | pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ | |
613 | } | |
614 | ||
460c322f WD |
615 | |
616 | U_BOOT_CMD( | |
617 | scsi, 5, 1, do_scsi, | |
618 | "scsi - SCSI sub-system\n", | |
619 | "reset - reset SCSI controller\n" | |
620 | "scsi info - show available SCSI devices\n" | |
621 | "scsi scan - (re-)scan SCSI bus\n" | |
622 | "scsi device [dev] - show or set current device\n" | |
623 | "scsi part [dev] - print partition table of one or all SCSI devices\n" | |
624 | "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n" | |
625 | " to memory address `addr'\n" | |
626 | ); | |
627 | ||
628 | U_BOOT_CMD( | |
629 | scsiboot, 3, 1, do_scsiboot, | |
630 | "scsiboot- boot from SCSI device\n", | |
631 | "loadAddr dev:part\n" | |
632 | ); |