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Commit | Line | Data |
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11f610ed SG |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Denis Peter, MPL AG Switzerland | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | ||
8 | #include <common.h> | |
535556b2 | 9 | #include <dm.h> |
11f610ed SG |
10 | #include <inttypes.h> |
11 | #include <pci.h> | |
12 | #include <scsi.h> | |
e8a016b5 MS |
13 | #include <dm/device-internal.h> |
14 | #include <dm/uclass-internal.h> | |
11f610ed | 15 | |
e8a016b5 | 16 | #if !defined(CONFIG_DM_SCSI) |
099c239d SG |
17 | # ifdef CONFIG_SCSI_DEV_LIST |
18 | # define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST | |
19 | # else | |
20 | # ifdef CONFIG_SATA_ULI5288 | |
11f610ed | 21 | |
099c239d SG |
22 | # define SCSI_VEND_ID 0x10b9 |
23 | # define SCSI_DEV_ID 0x5288 | |
11f610ed | 24 | |
099c239d SG |
25 | # elif !defined(CONFIG_SCSI_AHCI_PLAT) |
26 | # error no scsi device defined | |
27 | # endif | |
28 | # define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID} | |
29 | # endif | |
e8a016b5 | 30 | #endif |
11f610ed | 31 | |
7337fcd8 SG |
32 | #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \ |
33 | !defined(CONFIG_DM_SCSI) | |
11f610ed SG |
34 | const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST }; |
35 | #endif | |
b9560ad6 | 36 | static struct scsi_cmd tempccb; /* temporary scsi command buffer */ |
11f610ed SG |
37 | |
38 | static unsigned char tempbuff[512]; /* temporary data buffer */ | |
39 | ||
e8a016b5 | 40 | #if !defined(CONFIG_DM_SCSI) |
11f610ed SG |
41 | static int scsi_max_devs; /* number of highest available scsi device */ |
42 | ||
43 | static int scsi_curr_dev; /* current device */ | |
44 | ||
45 | static struct blk_desc scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE]; | |
e8a016b5 | 46 | #endif |
11f610ed SG |
47 | |
48 | /* almost the maximum amount of the scsi_ext command.. */ | |
49 | #define SCSI_MAX_READ_BLK 0xFFFF | |
50 | #define SCSI_LBA48_READ 0xFFFFFFF | |
51 | ||
b9560ad6 | 52 | static void scsi_print_error(struct scsi_cmd *pccb) |
a6fb185c SG |
53 | { |
54 | /* Dummy function that could print an error for debugging */ | |
55 | } | |
56 | ||
11f610ed | 57 | #ifdef CONFIG_SYS_64BIT_LBA |
b9560ad6 SG |
58 | void scsi_setup_read16(struct scsi_cmd *pccb, lbaint_t start, |
59 | unsigned long blocks) | |
11f610ed SG |
60 | { |
61 | pccb->cmd[0] = SCSI_READ16; | |
62 | pccb->cmd[1] = pccb->lun << 5; | |
63 | pccb->cmd[2] = (unsigned char)(start >> 56) & 0xff; | |
64 | pccb->cmd[3] = (unsigned char)(start >> 48) & 0xff; | |
65 | pccb->cmd[4] = (unsigned char)(start >> 40) & 0xff; | |
66 | pccb->cmd[5] = (unsigned char)(start >> 32) & 0xff; | |
67 | pccb->cmd[6] = (unsigned char)(start >> 24) & 0xff; | |
68 | pccb->cmd[7] = (unsigned char)(start >> 16) & 0xff; | |
69 | pccb->cmd[8] = (unsigned char)(start >> 8) & 0xff; | |
70 | pccb->cmd[9] = (unsigned char)start & 0xff; | |
71 | pccb->cmd[10] = 0; | |
72 | pccb->cmd[11] = (unsigned char)(blocks >> 24) & 0xff; | |
73 | pccb->cmd[12] = (unsigned char)(blocks >> 16) & 0xff; | |
74 | pccb->cmd[13] = (unsigned char)(blocks >> 8) & 0xff; | |
75 | pccb->cmd[14] = (unsigned char)blocks & 0xff; | |
76 | pccb->cmd[15] = 0; | |
77 | pccb->cmdlen = 16; | |
78 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
79 | debug("scsi_setup_read16: cmd: %02X %02X startblk %02X%02X%02X%02X%02X%02X%02X%02X blccnt %02X%02X%02X%02X\n", | |
80 | pccb->cmd[0], pccb->cmd[1], | |
81 | pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], | |
82 | pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9], | |
83 | pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]); | |
84 | } | |
85 | #endif | |
86 | ||
b9560ad6 | 87 | static void scsi_setup_read_ext(struct scsi_cmd *pccb, lbaint_t start, |
545a2847 | 88 | unsigned short blocks) |
11f610ed SG |
89 | { |
90 | pccb->cmd[0] = SCSI_READ10; | |
91 | pccb->cmd[1] = pccb->lun << 5; | |
92 | pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff; | |
93 | pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff; | |
94 | pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff; | |
95 | pccb->cmd[5] = (unsigned char)start & 0xff; | |
96 | pccb->cmd[6] = 0; | |
97 | pccb->cmd[7] = (unsigned char)(blocks >> 8) & 0xff; | |
98 | pccb->cmd[8] = (unsigned char)blocks & 0xff; | |
99 | pccb->cmd[6] = 0; | |
100 | pccb->cmdlen = 10; | |
101 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
102 | debug("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", | |
103 | pccb->cmd[0], pccb->cmd[1], | |
104 | pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], | |
105 | pccb->cmd[7], pccb->cmd[8]); | |
106 | } | |
107 | ||
b9560ad6 | 108 | static void scsi_setup_write_ext(struct scsi_cmd *pccb, lbaint_t start, |
545a2847 | 109 | unsigned short blocks) |
11f610ed SG |
110 | { |
111 | pccb->cmd[0] = SCSI_WRITE10; | |
112 | pccb->cmd[1] = pccb->lun << 5; | |
113 | pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff; | |
114 | pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff; | |
115 | pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff; | |
116 | pccb->cmd[5] = (unsigned char)start & 0xff; | |
117 | pccb->cmd[6] = 0; | |
118 | pccb->cmd[7] = ((unsigned char)(blocks >> 8)) & 0xff; | |
119 | pccb->cmd[8] = (unsigned char)blocks & 0xff; | |
120 | pccb->cmd[9] = 0; | |
121 | pccb->cmdlen = 10; | |
122 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
123 | debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", | |
124 | __func__, | |
125 | pccb->cmd[0], pccb->cmd[1], | |
126 | pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], | |
127 | pccb->cmd[7], pccb->cmd[8]); | |
128 | } | |
129 | ||
b9560ad6 | 130 | static void scsi_setup_inquiry(struct scsi_cmd *pccb) |
11f610ed SG |
131 | { |
132 | pccb->cmd[0] = SCSI_INQUIRY; | |
133 | pccb->cmd[1] = pccb->lun << 5; | |
134 | pccb->cmd[2] = 0; | |
135 | pccb->cmd[3] = 0; | |
136 | if (pccb->datalen > 255) | |
137 | pccb->cmd[4] = 255; | |
138 | else | |
139 | pccb->cmd[4] = (unsigned char)pccb->datalen; | |
140 | pccb->cmd[5] = 0; | |
141 | pccb->cmdlen = 6; | |
142 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
143 | } | |
144 | ||
535556b2 SG |
145 | #ifdef CONFIG_BLK |
146 | static ulong scsi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt, | |
147 | void *buffer) | |
148 | #else | |
11f610ed SG |
149 | static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr, |
150 | lbaint_t blkcnt, void *buffer) | |
535556b2 | 151 | #endif |
11f610ed | 152 | { |
535556b2 SG |
153 | #ifdef CONFIG_BLK |
154 | struct blk_desc *block_dev = dev_get_uclass_platdata(dev); | |
4682c8a1 SG |
155 | struct udevice *bdev = dev->parent; |
156 | #else | |
157 | struct udevice *bdev = NULL; | |
535556b2 | 158 | #endif |
11f610ed SG |
159 | lbaint_t start, blks; |
160 | uintptr_t buf_addr; | |
161 | unsigned short smallblks = 0; | |
b9560ad6 | 162 | struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb; |
11f610ed SG |
163 | |
164 | /* Setup device */ | |
cdb93b27 MS |
165 | pccb->target = block_dev->target; |
166 | pccb->lun = block_dev->lun; | |
11f610ed SG |
167 | buf_addr = (unsigned long)buffer; |
168 | start = blknr; | |
169 | blks = blkcnt; | |
170 | debug("\nscsi_read: dev %d startblk " LBAF | |
171 | ", blccnt " LBAF " buffer %lx\n", | |
cdb93b27 | 172 | block_dev->devnum, start, blks, (unsigned long)buffer); |
11f610ed SG |
173 | do { |
174 | pccb->pdata = (unsigned char *)buf_addr; | |
175 | #ifdef CONFIG_SYS_64BIT_LBA | |
176 | if (start > SCSI_LBA48_READ) { | |
177 | unsigned long blocks; | |
178 | blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK); | |
cdb93b27 | 179 | pccb->datalen = block_dev->blksz * blocks; |
11f610ed SG |
180 | scsi_setup_read16(pccb, start, blocks); |
181 | start += blocks; | |
182 | blks -= blocks; | |
183 | } else | |
184 | #endif | |
185 | if (blks > SCSI_MAX_READ_BLK) { | |
cdb93b27 | 186 | pccb->datalen = block_dev->blksz * |
11f610ed SG |
187 | SCSI_MAX_READ_BLK; |
188 | smallblks = SCSI_MAX_READ_BLK; | |
189 | scsi_setup_read_ext(pccb, start, smallblks); | |
190 | start += SCSI_MAX_READ_BLK; | |
191 | blks -= SCSI_MAX_READ_BLK; | |
192 | } else { | |
cdb93b27 | 193 | pccb->datalen = block_dev->blksz * blks; |
11f610ed SG |
194 | smallblks = (unsigned short)blks; |
195 | scsi_setup_read_ext(pccb, start, smallblks); | |
196 | start += blks; | |
197 | blks = 0; | |
198 | } | |
199 | debug("scsi_read_ext: startblk " LBAF | |
200 | ", blccnt %x buffer %" PRIXPTR "\n", | |
201 | start, smallblks, buf_addr); | |
4682c8a1 | 202 | if (scsi_exec(bdev, pccb)) { |
11f610ed SG |
203 | scsi_print_error(pccb); |
204 | blkcnt -= blks; | |
205 | break; | |
206 | } | |
207 | buf_addr += pccb->datalen; | |
208 | } while (blks != 0); | |
209 | debug("scsi_read_ext: end startblk " LBAF | |
210 | ", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr); | |
211 | return blkcnt; | |
212 | } | |
213 | ||
214 | /******************************************************************************* | |
215 | * scsi_write | |
216 | */ | |
217 | ||
218 | /* Almost the maximum amount of the scsi_ext command.. */ | |
219 | #define SCSI_MAX_WRITE_BLK 0xFFFF | |
220 | ||
535556b2 SG |
221 | #ifdef CONFIG_BLK |
222 | static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt, | |
223 | const void *buffer) | |
224 | #else | |
11f610ed SG |
225 | static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr, |
226 | lbaint_t blkcnt, const void *buffer) | |
535556b2 | 227 | #endif |
11f610ed | 228 | { |
535556b2 SG |
229 | #ifdef CONFIG_BLK |
230 | struct blk_desc *block_dev = dev_get_uclass_platdata(dev); | |
4682c8a1 SG |
231 | struct udevice *bdev = dev->parent; |
232 | #else | |
233 | struct udevice *bdev = NULL; | |
535556b2 | 234 | #endif |
11f610ed SG |
235 | lbaint_t start, blks; |
236 | uintptr_t buf_addr; | |
237 | unsigned short smallblks; | |
b9560ad6 | 238 | struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb; |
11f610ed | 239 | |
11f610ed | 240 | /* Setup device */ |
cdb93b27 MS |
241 | pccb->target = block_dev->target; |
242 | pccb->lun = block_dev->lun; | |
11f610ed SG |
243 | buf_addr = (unsigned long)buffer; |
244 | start = blknr; | |
245 | blks = blkcnt; | |
246 | debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n", | |
cdb93b27 | 247 | __func__, block_dev->devnum, start, blks, (unsigned long)buffer); |
11f610ed SG |
248 | do { |
249 | pccb->pdata = (unsigned char *)buf_addr; | |
250 | if (blks > SCSI_MAX_WRITE_BLK) { | |
cdb93b27 | 251 | pccb->datalen = (block_dev->blksz * |
11f610ed SG |
252 | SCSI_MAX_WRITE_BLK); |
253 | smallblks = SCSI_MAX_WRITE_BLK; | |
254 | scsi_setup_write_ext(pccb, start, smallblks); | |
255 | start += SCSI_MAX_WRITE_BLK; | |
256 | blks -= SCSI_MAX_WRITE_BLK; | |
257 | } else { | |
cdb93b27 | 258 | pccb->datalen = block_dev->blksz * blks; |
11f610ed SG |
259 | smallblks = (unsigned short)blks; |
260 | scsi_setup_write_ext(pccb, start, smallblks); | |
261 | start += blks; | |
262 | blks = 0; | |
263 | } | |
264 | debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n", | |
265 | __func__, start, smallblks, buf_addr); | |
4682c8a1 | 266 | if (scsi_exec(bdev, pccb)) { |
11f610ed SG |
267 | scsi_print_error(pccb); |
268 | blkcnt -= blks; | |
269 | break; | |
270 | } | |
271 | buf_addr += pccb->datalen; | |
272 | } while (blks != 0); | |
273 | debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n", | |
274 | __func__, start, smallblks, buf_addr); | |
275 | return blkcnt; | |
276 | } | |
277 | ||
7337fcd8 SG |
278 | #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \ |
279 | !defined(CONFIG_DM_SCSI) | |
11f610ed SG |
280 | void scsi_init(void) |
281 | { | |
282 | int busdevfunc = -1; | |
283 | int i; | |
284 | /* | |
285 | * Find a device from the list, this driver will support a single | |
286 | * controller. | |
287 | */ | |
288 | for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { | |
289 | /* get PCI Device ID */ | |
290 | #ifdef CONFIG_DM_PCI | |
291 | struct udevice *dev; | |
292 | int ret; | |
293 | ||
294 | ret = dm_pci_find_device(scsi_device_list[i].vendor, | |
295 | scsi_device_list[i].device, 0, &dev); | |
296 | if (!ret) { | |
297 | busdevfunc = dm_pci_get_bdf(dev); | |
298 | break; | |
299 | } | |
300 | #else | |
301 | busdevfunc = pci_find_device(scsi_device_list[i].vendor, | |
302 | scsi_device_list[i].device, | |
303 | 0); | |
304 | #endif | |
305 | if (busdevfunc != -1) | |
306 | break; | |
307 | } | |
308 | ||
309 | if (busdevfunc == -1) { | |
310 | printf("Error: SCSI Controller(s) "); | |
311 | for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { | |
312 | printf("%04X:%04X ", | |
313 | scsi_device_list[i].vendor, | |
314 | scsi_device_list[i].device); | |
315 | } | |
316 | printf("not found\n"); | |
317 | return; | |
318 | } | |
319 | #ifdef DEBUG | |
320 | else { | |
321 | printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n", | |
322 | scsi_device_list[i].vendor, | |
323 | scsi_device_list[i].device, | |
324 | (busdevfunc >> 16) & 0xFF, | |
325 | (busdevfunc >> 11) & 0x1F, | |
326 | (busdevfunc >> 8) & 0x7); | |
327 | } | |
328 | #endif | |
329 | bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci"); | |
330 | scsi_low_level_init(busdevfunc); | |
8eab1a58 | 331 | scsi_scan(true); |
11f610ed SG |
332 | bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI); |
333 | } | |
334 | #endif | |
335 | ||
11f610ed SG |
336 | /* copy src to dest, skipping leading and trailing blanks |
337 | * and null terminate the string | |
338 | */ | |
545a2847 MS |
339 | static void scsi_ident_cpy(unsigned char *dest, unsigned char *src, |
340 | unsigned int len) | |
11f610ed SG |
341 | { |
342 | int start, end; | |
343 | ||
344 | start = 0; | |
345 | while (start < len) { | |
346 | if (src[start] != ' ') | |
347 | break; | |
348 | start++; | |
349 | } | |
350 | end = len-1; | |
351 | while (end > start) { | |
352 | if (src[end] != ' ') | |
353 | break; | |
354 | end--; | |
355 | } | |
356 | for (; start <= end; start++) | |
357 | *dest ++= src[start]; | |
358 | *dest = '\0'; | |
359 | } | |
360 | ||
4682c8a1 SG |
361 | static int scsi_read_capacity(struct udevice *dev, struct scsi_cmd *pccb, |
362 | lbaint_t *capacity, unsigned long *blksz) | |
11f610ed SG |
363 | { |
364 | *capacity = 0; | |
365 | ||
366 | memset(pccb->cmd, '\0', sizeof(pccb->cmd)); | |
367 | pccb->cmd[0] = SCSI_RD_CAPAC10; | |
368 | pccb->cmd[1] = pccb->lun << 5; | |
369 | pccb->cmdlen = 10; | |
370 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
371 | ||
372 | pccb->datalen = 8; | |
f6580ef3 | 373 | if (scsi_exec(dev, pccb)) |
11f610ed SG |
374 | return 1; |
375 | ||
376 | *capacity = ((lbaint_t)pccb->pdata[0] << 24) | | |
377 | ((lbaint_t)pccb->pdata[1] << 16) | | |
378 | ((lbaint_t)pccb->pdata[2] << 8) | | |
379 | ((lbaint_t)pccb->pdata[3]); | |
380 | ||
381 | if (*capacity != 0xffffffff) { | |
382 | /* Read capacity (10) was sufficient for this drive. */ | |
383 | *blksz = ((unsigned long)pccb->pdata[4] << 24) | | |
384 | ((unsigned long)pccb->pdata[5] << 16) | | |
385 | ((unsigned long)pccb->pdata[6] << 8) | | |
386 | ((unsigned long)pccb->pdata[7]); | |
387 | return 0; | |
388 | } | |
389 | ||
390 | /* Read capacity (10) was insufficient. Use read capacity (16). */ | |
391 | memset(pccb->cmd, '\0', sizeof(pccb->cmd)); | |
392 | pccb->cmd[0] = SCSI_RD_CAPAC16; | |
393 | pccb->cmd[1] = 0x10; | |
394 | pccb->cmdlen = 16; | |
395 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
396 | ||
397 | pccb->datalen = 16; | |
f6580ef3 | 398 | if (scsi_exec(dev, pccb)) |
11f610ed SG |
399 | return 1; |
400 | ||
401 | *capacity = ((uint64_t)pccb->pdata[0] << 56) | | |
402 | ((uint64_t)pccb->pdata[1] << 48) | | |
403 | ((uint64_t)pccb->pdata[2] << 40) | | |
404 | ((uint64_t)pccb->pdata[3] << 32) | | |
405 | ((uint64_t)pccb->pdata[4] << 24) | | |
406 | ((uint64_t)pccb->pdata[5] << 16) | | |
407 | ((uint64_t)pccb->pdata[6] << 8) | | |
408 | ((uint64_t)pccb->pdata[7]); | |
409 | ||
410 | *blksz = ((uint64_t)pccb->pdata[8] << 56) | | |
411 | ((uint64_t)pccb->pdata[9] << 48) | | |
412 | ((uint64_t)pccb->pdata[10] << 40) | | |
413 | ((uint64_t)pccb->pdata[11] << 32) | | |
414 | ((uint64_t)pccb->pdata[12] << 24) | | |
415 | ((uint64_t)pccb->pdata[13] << 16) | | |
416 | ((uint64_t)pccb->pdata[14] << 8) | | |
417 | ((uint64_t)pccb->pdata[15]); | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
422 | ||
423 | /* | |
424 | * Some setup (fill-in) routines | |
425 | */ | |
b9560ad6 | 426 | static void scsi_setup_test_unit_ready(struct scsi_cmd *pccb) |
11f610ed SG |
427 | { |
428 | pccb->cmd[0] = SCSI_TST_U_RDY; | |
429 | pccb->cmd[1] = pccb->lun << 5; | |
430 | pccb->cmd[2] = 0; | |
431 | pccb->cmd[3] = 0; | |
432 | pccb->cmd[4] = 0; | |
433 | pccb->cmd[5] = 0; | |
434 | pccb->cmdlen = 6; | |
435 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
436 | } | |
437 | ||
0b3a58ee MS |
438 | /** |
439 | * scsi_init_dev_desc_priv - initialize only SCSI specific blk_desc properties | |
440 | * | |
441 | * @dev_desc: Block device description pointer | |
442 | */ | |
443 | static void scsi_init_dev_desc_priv(struct blk_desc *dev_desc) | |
92ca476c MS |
444 | { |
445 | dev_desc->target = 0xff; | |
446 | dev_desc->lun = 0xff; | |
92ca476c MS |
447 | dev_desc->log2blksz = |
448 | LOG2_INVALID(typeof(dev_desc->log2blksz)); | |
449 | dev_desc->type = DEV_TYPE_UNKNOWN; | |
450 | dev_desc->vendor[0] = 0; | |
451 | dev_desc->product[0] = 0; | |
452 | dev_desc->revision[0] = 0; | |
453 | dev_desc->removable = false; | |
c4d660d4 | 454 | #if !CONFIG_IS_ENABLED(BLK) |
92ca476c MS |
455 | dev_desc->block_read = scsi_read; |
456 | dev_desc->block_write = scsi_write; | |
457 | #endif | |
458 | } | |
459 | ||
e8a016b5 | 460 | #if !defined(CONFIG_DM_SCSI) |
0b3a58ee MS |
461 | /** |
462 | * scsi_init_dev_desc - initialize all SCSI specific blk_desc properties | |
463 | * | |
464 | * @dev_desc: Block device description pointer | |
465 | * @devnum: Device number | |
466 | */ | |
467 | static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum) | |
468 | { | |
469 | dev_desc->lba = 0; | |
470 | dev_desc->blksz = 0; | |
471 | dev_desc->if_type = IF_TYPE_SCSI; | |
472 | dev_desc->devnum = devnum; | |
473 | dev_desc->part_type = PART_TYPE_UNKNOWN; | |
474 | ||
475 | scsi_init_dev_desc_priv(dev_desc); | |
476 | } | |
e8a016b5 | 477 | #endif |
bccfd9e9 | 478 | |
570712f4 MS |
479 | /** |
480 | * scsi_detect_dev - Detect scsi device | |
481 | * | |
bccfd9e9 | 482 | * @target: target id |
e39cecfd | 483 | * @lun: target lun |
570712f4 | 484 | * @dev_desc: block device description |
570712f4 MS |
485 | * |
486 | * The scsi_detect_dev detects and fills a dev_desc structure when the device is | |
e39cecfd | 487 | * detected. |
570712f4 MS |
488 | * |
489 | * Return: 0 on success, error value otherwise | |
490 | */ | |
4682c8a1 SG |
491 | static int scsi_detect_dev(struct udevice *dev, int target, int lun, |
492 | struct blk_desc *dev_desc) | |
570712f4 MS |
493 | { |
494 | unsigned char perq, modi; | |
495 | lbaint_t capacity; | |
496 | unsigned long blksz; | |
b9560ad6 | 497 | struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb; |
570712f4 | 498 | |
bccfd9e9 | 499 | pccb->target = target; |
e39cecfd | 500 | pccb->lun = lun; |
570712f4 MS |
501 | pccb->pdata = (unsigned char *)&tempbuff; |
502 | pccb->datalen = 512; | |
503 | scsi_setup_inquiry(pccb); | |
f6580ef3 | 504 | if (scsi_exec(dev, pccb)) { |
570712f4 MS |
505 | if (pccb->contr_stat == SCSI_SEL_TIME_OUT) { |
506 | /* | |
507 | * selection timeout => assuming no | |
508 | * device present | |
509 | */ | |
510 | debug("Selection timeout ID %d\n", | |
511 | pccb->target); | |
512 | return -ETIMEDOUT; | |
513 | } | |
514 | scsi_print_error(pccb); | |
515 | return -ENODEV; | |
516 | } | |
517 | perq = tempbuff[0]; | |
518 | modi = tempbuff[1]; | |
519 | if ((perq & 0x1f) == 0x1f) | |
520 | return -ENODEV; /* skip unknown devices */ | |
521 | if ((modi & 0x80) == 0x80) /* drive is removable */ | |
522 | dev_desc->removable = true; | |
523 | /* get info for this device */ | |
524 | scsi_ident_cpy((unsigned char *)dev_desc->vendor, | |
525 | &tempbuff[8], 8); | |
526 | scsi_ident_cpy((unsigned char *)dev_desc->product, | |
527 | &tempbuff[16], 16); | |
528 | scsi_ident_cpy((unsigned char *)dev_desc->revision, | |
529 | &tempbuff[32], 4); | |
530 | dev_desc->target = pccb->target; | |
531 | dev_desc->lun = pccb->lun; | |
532 | ||
533 | pccb->datalen = 0; | |
534 | scsi_setup_test_unit_ready(pccb); | |
f6580ef3 | 535 | if (scsi_exec(dev, pccb)) { |
570712f4 MS |
536 | if (dev_desc->removable) { |
537 | dev_desc->type = perq; | |
538 | goto removable; | |
539 | } | |
540 | scsi_print_error(pccb); | |
541 | return -EINVAL; | |
542 | } | |
4682c8a1 | 543 | if (scsi_read_capacity(dev, pccb, &capacity, &blksz)) { |
570712f4 MS |
544 | scsi_print_error(pccb); |
545 | return -EINVAL; | |
546 | } | |
547 | dev_desc->lba = capacity; | |
548 | dev_desc->blksz = blksz; | |
549 | dev_desc->log2blksz = LOG2(dev_desc->blksz); | |
550 | dev_desc->type = perq; | |
570712f4 MS |
551 | removable: |
552 | return 0; | |
553 | } | |
554 | ||
11f610ed SG |
555 | /* |
556 | * (re)-scan the scsi bus and reports scsi device info | |
557 | * to the user if mode = 1 | |
558 | */ | |
e8a016b5 | 559 | #if defined(CONFIG_DM_SCSI) |
8eab1a58 | 560 | static int do_scsi_scan_one(struct udevice *dev, int id, int lun, bool verbose) |
d52063b8 JJH |
561 | { |
562 | int ret; | |
563 | struct udevice *bdev; | |
564 | struct blk_desc bd; | |
565 | struct blk_desc *bdesc; | |
566 | char str[10]; | |
567 | ||
568 | /* | |
569 | * detect the scsi driver to get information about its geometry (block | |
570 | * size, number of blocks) and other parameters (ids, type, ...) | |
571 | */ | |
572 | scsi_init_dev_desc_priv(&bd); | |
4682c8a1 | 573 | if (scsi_detect_dev(dev, id, lun, &bd)) |
d52063b8 JJH |
574 | return -ENODEV; |
575 | ||
576 | /* | |
577 | * Create only one block device and do detection | |
578 | * to make sure that there won't be a lot of | |
579 | * block devices created | |
580 | */ | |
581 | snprintf(str, sizeof(str), "id%dlun%d", id, lun); | |
582 | ret = blk_create_devicef(dev, "scsi_blk", str, IF_TYPE_SCSI, -1, | |
5fe7702e | 583 | bd.blksz, bd.lba, &bdev); |
d52063b8 JJH |
584 | if (ret) { |
585 | debug("Can't create device\n"); | |
586 | return ret; | |
587 | } | |
588 | ||
589 | bdesc = dev_get_uclass_platdata(bdev); | |
590 | bdesc->target = id; | |
591 | bdesc->lun = lun; | |
592 | bdesc->removable = bd.removable; | |
593 | bdesc->type = bd.type; | |
594 | memcpy(&bdesc->vendor, &bd.vendor, sizeof(bd.vendor)); | |
595 | memcpy(&bdesc->product, &bd.product, sizeof(bd.product)); | |
596 | memcpy(&bdesc->revision, &bd.revision, sizeof(bd.revision)); | |
597 | part_init(bdesc); | |
598 | ||
8eab1a58 | 599 | if (verbose) { |
d52063b8 JJH |
600 | printf(" Device %d: ", 0); |
601 | dev_print(bdesc); | |
602 | } | |
603 | return 0; | |
604 | } | |
605 | ||
5c561763 SG |
606 | int scsi_scan_dev(struct udevice *dev, bool verbose) |
607 | { | |
608 | struct scsi_platdata *uc_plat; /* scsi controller platdata */ | |
609 | int ret; | |
610 | int i; | |
611 | int lun; | |
612 | ||
613 | /* probe SCSI controller driver */ | |
614 | ret = device_probe(dev); | |
615 | if (ret) | |
616 | return ret; | |
617 | ||
618 | /* Get controller platdata */ | |
619 | uc_plat = dev_get_uclass_platdata(dev); | |
620 | ||
621 | for (i = 0; i < uc_plat->max_id; i++) | |
622 | for (lun = 0; lun < uc_plat->max_lun; lun++) | |
623 | do_scsi_scan_one(dev, i, lun, verbose); | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
8eab1a58 | 628 | int scsi_scan(bool verbose) |
e8a016b5 | 629 | { |
e8a016b5 MS |
630 | struct uclass *uc; |
631 | struct udevice *dev; /* SCSI controller */ | |
632 | int ret; | |
633 | ||
8eab1a58 | 634 | if (verbose) |
e8a016b5 MS |
635 | printf("scanning bus for devices...\n"); |
636 | ||
f8f41ae6 MS |
637 | blk_unbind_all(IF_TYPE_SCSI); |
638 | ||
e8a016b5 MS |
639 | ret = uclass_get(UCLASS_SCSI, &uc); |
640 | if (ret) | |
641 | return ret; | |
642 | ||
643 | uclass_foreach_dev(dev, uc) { | |
5c561763 | 644 | ret = scsi_scan_dev(dev, verbose); |
e8a016b5 MS |
645 | if (ret) |
646 | return ret; | |
e8a016b5 MS |
647 | } |
648 | ||
649 | return 0; | |
650 | } | |
651 | #else | |
8eab1a58 | 652 | int scsi_scan(bool verbose) |
11f610ed | 653 | { |
570712f4 MS |
654 | unsigned char i, lun; |
655 | int ret; | |
11f610ed | 656 | |
8eab1a58 | 657 | if (verbose) |
11f610ed | 658 | printf("scanning bus for devices...\n"); |
92ca476c MS |
659 | for (i = 0; i < CONFIG_SYS_SCSI_MAX_DEVICE; i++) |
660 | scsi_init_dev_desc(&scsi_dev_desc[i], i); | |
661 | ||
11f610ed SG |
662 | scsi_max_devs = 0; |
663 | for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) { | |
11f610ed | 664 | for (lun = 0; lun < CONFIG_SYS_SCSI_MAX_LUN; lun++) { |
4682c8a1 | 665 | ret = scsi_detect_dev(NULL, i, lun, |
e39cecfd | 666 | &scsi_dev_desc[scsi_max_devs]); |
570712f4 | 667 | if (ret) |
11f610ed | 668 | continue; |
1330a726 | 669 | part_init(&scsi_dev_desc[scsi_max_devs]); |
570712f4 | 670 | |
8eab1a58 | 671 | if (verbose) { |
570712f4 | 672 | printf(" Device %d: ", 0); |
11f610ed | 673 | dev_print(&scsi_dev_desc[scsi_max_devs]); |
8eab1a58 | 674 | } |
11f610ed SG |
675 | scsi_max_devs++; |
676 | } /* next LUN */ | |
677 | } | |
678 | if (scsi_max_devs > 0) | |
679 | scsi_curr_dev = 0; | |
680 | else | |
681 | scsi_curr_dev = -1; | |
682 | ||
683 | printf("Found %d device(s).\n", scsi_max_devs); | |
684 | #ifndef CONFIG_SPL_BUILD | |
018f5303 | 685 | env_set_ulong("scsidevs", scsi_max_devs); |
11f610ed | 686 | #endif |
c002e39a | 687 | return 0; |
11f610ed | 688 | } |
e8a016b5 | 689 | #endif |
11f610ed | 690 | |
535556b2 SG |
691 | #ifdef CONFIG_BLK |
692 | static const struct blk_ops scsi_blk_ops = { | |
693 | .read = scsi_read, | |
694 | .write = scsi_write, | |
695 | }; | |
696 | ||
697 | U_BOOT_DRIVER(scsi_blk) = { | |
698 | .name = "scsi_blk", | |
699 | .id = UCLASS_BLK, | |
700 | .ops = &scsi_blk_ops, | |
701 | }; | |
702 | #else | |
11f610ed | 703 | U_BOOT_LEGACY_BLK(scsi) = { |
69c125fe | 704 | .if_typename = "scsi", |
11f610ed SG |
705 | .if_type = IF_TYPE_SCSI, |
706 | .max_devs = CONFIG_SYS_SCSI_MAX_DEVICE, | |
707 | .desc = scsi_dev_desc, | |
708 | }; | |
535556b2 | 709 | #endif |