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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
11f610ed SG |
2 | /* |
3 | * (C) Copyright 2001 | |
4 | * Denis Peter, MPL AG Switzerland | |
11f610ed SG |
5 | */ |
6 | ||
7 | #include <common.h> | |
535556b2 | 8 | #include <dm.h> |
168068fb | 9 | #include <env.h> |
11f610ed SG |
10 | #include <pci.h> |
11 | #include <scsi.h> | |
e8a016b5 MS |
12 | #include <dm/device-internal.h> |
13 | #include <dm/uclass-internal.h> | |
11f610ed | 14 | |
e8a016b5 | 15 | #if !defined(CONFIG_DM_SCSI) |
099c239d SG |
16 | # ifdef CONFIG_SCSI_DEV_LIST |
17 | # define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST | |
18 | # else | |
19 | # ifdef CONFIG_SATA_ULI5288 | |
11f610ed | 20 | |
099c239d SG |
21 | # define SCSI_VEND_ID 0x10b9 |
22 | # define SCSI_DEV_ID 0x5288 | |
11f610ed | 23 | |
099c239d SG |
24 | # elif !defined(CONFIG_SCSI_AHCI_PLAT) |
25 | # error no scsi device defined | |
26 | # endif | |
27 | # define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID} | |
28 | # endif | |
e8a016b5 | 29 | #endif |
11f610ed | 30 | |
7337fcd8 SG |
31 | #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \ |
32 | !defined(CONFIG_DM_SCSI) | |
11f610ed SG |
33 | const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST }; |
34 | #endif | |
b9560ad6 | 35 | static struct scsi_cmd tempccb; /* temporary scsi command buffer */ |
11f610ed SG |
36 | |
37 | static unsigned char tempbuff[512]; /* temporary data buffer */ | |
38 | ||
e8a016b5 | 39 | #if !defined(CONFIG_DM_SCSI) |
11f610ed SG |
40 | static int scsi_max_devs; /* number of highest available scsi device */ |
41 | ||
42 | static int scsi_curr_dev; /* current device */ | |
43 | ||
44 | static struct blk_desc scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE]; | |
e8a016b5 | 45 | #endif |
11f610ed SG |
46 | |
47 | /* almost the maximum amount of the scsi_ext command.. */ | |
48 | #define SCSI_MAX_READ_BLK 0xFFFF | |
49 | #define SCSI_LBA48_READ 0xFFFFFFF | |
50 | ||
b9560ad6 | 51 | static void scsi_print_error(struct scsi_cmd *pccb) |
a6fb185c SG |
52 | { |
53 | /* Dummy function that could print an error for debugging */ | |
54 | } | |
55 | ||
11f610ed | 56 | #ifdef CONFIG_SYS_64BIT_LBA |
b9560ad6 SG |
57 | void scsi_setup_read16(struct scsi_cmd *pccb, lbaint_t start, |
58 | unsigned long blocks) | |
11f610ed SG |
59 | { |
60 | pccb->cmd[0] = SCSI_READ16; | |
61 | pccb->cmd[1] = pccb->lun << 5; | |
62 | pccb->cmd[2] = (unsigned char)(start >> 56) & 0xff; | |
63 | pccb->cmd[3] = (unsigned char)(start >> 48) & 0xff; | |
64 | pccb->cmd[4] = (unsigned char)(start >> 40) & 0xff; | |
65 | pccb->cmd[5] = (unsigned char)(start >> 32) & 0xff; | |
66 | pccb->cmd[6] = (unsigned char)(start >> 24) & 0xff; | |
67 | pccb->cmd[7] = (unsigned char)(start >> 16) & 0xff; | |
68 | pccb->cmd[8] = (unsigned char)(start >> 8) & 0xff; | |
69 | pccb->cmd[9] = (unsigned char)start & 0xff; | |
70 | pccb->cmd[10] = 0; | |
71 | pccb->cmd[11] = (unsigned char)(blocks >> 24) & 0xff; | |
72 | pccb->cmd[12] = (unsigned char)(blocks >> 16) & 0xff; | |
73 | pccb->cmd[13] = (unsigned char)(blocks >> 8) & 0xff; | |
74 | pccb->cmd[14] = (unsigned char)blocks & 0xff; | |
75 | pccb->cmd[15] = 0; | |
76 | pccb->cmdlen = 16; | |
77 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
78 | debug("scsi_setup_read16: cmd: %02X %02X startblk %02X%02X%02X%02X%02X%02X%02X%02X blccnt %02X%02X%02X%02X\n", | |
79 | pccb->cmd[0], pccb->cmd[1], | |
80 | pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], | |
81 | pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9], | |
82 | pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]); | |
83 | } | |
84 | #endif | |
85 | ||
b9560ad6 | 86 | static void scsi_setup_read_ext(struct scsi_cmd *pccb, lbaint_t start, |
545a2847 | 87 | unsigned short blocks) |
11f610ed SG |
88 | { |
89 | pccb->cmd[0] = SCSI_READ10; | |
90 | pccb->cmd[1] = pccb->lun << 5; | |
91 | pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff; | |
92 | pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff; | |
93 | pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff; | |
94 | pccb->cmd[5] = (unsigned char)start & 0xff; | |
95 | pccb->cmd[6] = 0; | |
96 | pccb->cmd[7] = (unsigned char)(blocks >> 8) & 0xff; | |
97 | pccb->cmd[8] = (unsigned char)blocks & 0xff; | |
98 | pccb->cmd[6] = 0; | |
99 | pccb->cmdlen = 10; | |
100 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
101 | debug("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", | |
102 | pccb->cmd[0], pccb->cmd[1], | |
103 | pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], | |
104 | pccb->cmd[7], pccb->cmd[8]); | |
105 | } | |
106 | ||
b9560ad6 | 107 | static void scsi_setup_write_ext(struct scsi_cmd *pccb, lbaint_t start, |
545a2847 | 108 | unsigned short blocks) |
11f610ed SG |
109 | { |
110 | pccb->cmd[0] = SCSI_WRITE10; | |
111 | pccb->cmd[1] = pccb->lun << 5; | |
112 | pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff; | |
113 | pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff; | |
114 | pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff; | |
115 | pccb->cmd[5] = (unsigned char)start & 0xff; | |
116 | pccb->cmd[6] = 0; | |
117 | pccb->cmd[7] = ((unsigned char)(blocks >> 8)) & 0xff; | |
118 | pccb->cmd[8] = (unsigned char)blocks & 0xff; | |
119 | pccb->cmd[9] = 0; | |
120 | pccb->cmdlen = 10; | |
121 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
122 | debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", | |
123 | __func__, | |
124 | pccb->cmd[0], pccb->cmd[1], | |
125 | pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], | |
126 | pccb->cmd[7], pccb->cmd[8]); | |
127 | } | |
128 | ||
b9560ad6 | 129 | static void scsi_setup_inquiry(struct scsi_cmd *pccb) |
11f610ed SG |
130 | { |
131 | pccb->cmd[0] = SCSI_INQUIRY; | |
132 | pccb->cmd[1] = pccb->lun << 5; | |
133 | pccb->cmd[2] = 0; | |
134 | pccb->cmd[3] = 0; | |
135 | if (pccb->datalen > 255) | |
136 | pccb->cmd[4] = 255; | |
137 | else | |
138 | pccb->cmd[4] = (unsigned char)pccb->datalen; | |
139 | pccb->cmd[5] = 0; | |
140 | pccb->cmdlen = 6; | |
141 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
142 | } | |
143 | ||
535556b2 SG |
144 | #ifdef CONFIG_BLK |
145 | static ulong scsi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt, | |
146 | void *buffer) | |
147 | #else | |
11f610ed SG |
148 | static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr, |
149 | lbaint_t blkcnt, void *buffer) | |
535556b2 | 150 | #endif |
11f610ed | 151 | { |
535556b2 SG |
152 | #ifdef CONFIG_BLK |
153 | struct blk_desc *block_dev = dev_get_uclass_platdata(dev); | |
4682c8a1 SG |
154 | struct udevice *bdev = dev->parent; |
155 | #else | |
156 | struct udevice *bdev = NULL; | |
535556b2 | 157 | #endif |
11f610ed SG |
158 | lbaint_t start, blks; |
159 | uintptr_t buf_addr; | |
160 | unsigned short smallblks = 0; | |
b9560ad6 | 161 | struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb; |
11f610ed SG |
162 | |
163 | /* Setup device */ | |
cdb93b27 MS |
164 | pccb->target = block_dev->target; |
165 | pccb->lun = block_dev->lun; | |
11f610ed SG |
166 | buf_addr = (unsigned long)buffer; |
167 | start = blknr; | |
168 | blks = blkcnt; | |
169 | debug("\nscsi_read: dev %d startblk " LBAF | |
170 | ", blccnt " LBAF " buffer %lx\n", | |
cdb93b27 | 171 | block_dev->devnum, start, blks, (unsigned long)buffer); |
11f610ed SG |
172 | do { |
173 | pccb->pdata = (unsigned char *)buf_addr; | |
174 | #ifdef CONFIG_SYS_64BIT_LBA | |
175 | if (start > SCSI_LBA48_READ) { | |
176 | unsigned long blocks; | |
177 | blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK); | |
cdb93b27 | 178 | pccb->datalen = block_dev->blksz * blocks; |
11f610ed SG |
179 | scsi_setup_read16(pccb, start, blocks); |
180 | start += blocks; | |
181 | blks -= blocks; | |
182 | } else | |
183 | #endif | |
184 | if (blks > SCSI_MAX_READ_BLK) { | |
cdb93b27 | 185 | pccb->datalen = block_dev->blksz * |
11f610ed SG |
186 | SCSI_MAX_READ_BLK; |
187 | smallblks = SCSI_MAX_READ_BLK; | |
188 | scsi_setup_read_ext(pccb, start, smallblks); | |
189 | start += SCSI_MAX_READ_BLK; | |
190 | blks -= SCSI_MAX_READ_BLK; | |
191 | } else { | |
cdb93b27 | 192 | pccb->datalen = block_dev->blksz * blks; |
11f610ed SG |
193 | smallblks = (unsigned short)blks; |
194 | scsi_setup_read_ext(pccb, start, smallblks); | |
195 | start += blks; | |
196 | blks = 0; | |
197 | } | |
198 | debug("scsi_read_ext: startblk " LBAF | |
dee37fc9 | 199 | ", blccnt %x buffer %lX\n", |
11f610ed | 200 | start, smallblks, buf_addr); |
4682c8a1 | 201 | if (scsi_exec(bdev, pccb)) { |
11f610ed SG |
202 | scsi_print_error(pccb); |
203 | blkcnt -= blks; | |
204 | break; | |
205 | } | |
206 | buf_addr += pccb->datalen; | |
207 | } while (blks != 0); | |
208 | debug("scsi_read_ext: end startblk " LBAF | |
dee37fc9 | 209 | ", blccnt %x buffer %lX\n", start, smallblks, buf_addr); |
11f610ed SG |
210 | return blkcnt; |
211 | } | |
212 | ||
213 | /******************************************************************************* | |
214 | * scsi_write | |
215 | */ | |
216 | ||
217 | /* Almost the maximum amount of the scsi_ext command.. */ | |
218 | #define SCSI_MAX_WRITE_BLK 0xFFFF | |
219 | ||
535556b2 SG |
220 | #ifdef CONFIG_BLK |
221 | static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt, | |
222 | const void *buffer) | |
223 | #else | |
11f610ed SG |
224 | static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr, |
225 | lbaint_t blkcnt, const void *buffer) | |
535556b2 | 226 | #endif |
11f610ed | 227 | { |
535556b2 SG |
228 | #ifdef CONFIG_BLK |
229 | struct blk_desc *block_dev = dev_get_uclass_platdata(dev); | |
4682c8a1 SG |
230 | struct udevice *bdev = dev->parent; |
231 | #else | |
232 | struct udevice *bdev = NULL; | |
535556b2 | 233 | #endif |
11f610ed SG |
234 | lbaint_t start, blks; |
235 | uintptr_t buf_addr; | |
236 | unsigned short smallblks; | |
b9560ad6 | 237 | struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb; |
11f610ed | 238 | |
11f610ed | 239 | /* Setup device */ |
cdb93b27 MS |
240 | pccb->target = block_dev->target; |
241 | pccb->lun = block_dev->lun; | |
11f610ed SG |
242 | buf_addr = (unsigned long)buffer; |
243 | start = blknr; | |
244 | blks = blkcnt; | |
245 | debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n", | |
cdb93b27 | 246 | __func__, block_dev->devnum, start, blks, (unsigned long)buffer); |
11f610ed SG |
247 | do { |
248 | pccb->pdata = (unsigned char *)buf_addr; | |
249 | if (blks > SCSI_MAX_WRITE_BLK) { | |
cdb93b27 | 250 | pccb->datalen = (block_dev->blksz * |
11f610ed SG |
251 | SCSI_MAX_WRITE_BLK); |
252 | smallblks = SCSI_MAX_WRITE_BLK; | |
253 | scsi_setup_write_ext(pccb, start, smallblks); | |
254 | start += SCSI_MAX_WRITE_BLK; | |
255 | blks -= SCSI_MAX_WRITE_BLK; | |
256 | } else { | |
cdb93b27 | 257 | pccb->datalen = block_dev->blksz * blks; |
11f610ed SG |
258 | smallblks = (unsigned short)blks; |
259 | scsi_setup_write_ext(pccb, start, smallblks); | |
260 | start += blks; | |
261 | blks = 0; | |
262 | } | |
dee37fc9 | 263 | debug("%s: startblk " LBAF ", blccnt %x buffer %lx\n", |
11f610ed | 264 | __func__, start, smallblks, buf_addr); |
4682c8a1 | 265 | if (scsi_exec(bdev, pccb)) { |
11f610ed SG |
266 | scsi_print_error(pccb); |
267 | blkcnt -= blks; | |
268 | break; | |
269 | } | |
270 | buf_addr += pccb->datalen; | |
271 | } while (blks != 0); | |
dee37fc9 | 272 | debug("%s: end startblk " LBAF ", blccnt %x buffer %lX\n", |
11f610ed SG |
273 | __func__, start, smallblks, buf_addr); |
274 | return blkcnt; | |
275 | } | |
276 | ||
7337fcd8 SG |
277 | #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \ |
278 | !defined(CONFIG_DM_SCSI) | |
11f610ed SG |
279 | void scsi_init(void) |
280 | { | |
281 | int busdevfunc = -1; | |
282 | int i; | |
283 | /* | |
284 | * Find a device from the list, this driver will support a single | |
285 | * controller. | |
286 | */ | |
287 | for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { | |
288 | /* get PCI Device ID */ | |
289 | #ifdef CONFIG_DM_PCI | |
290 | struct udevice *dev; | |
291 | int ret; | |
292 | ||
293 | ret = dm_pci_find_device(scsi_device_list[i].vendor, | |
294 | scsi_device_list[i].device, 0, &dev); | |
295 | if (!ret) { | |
296 | busdevfunc = dm_pci_get_bdf(dev); | |
297 | break; | |
298 | } | |
299 | #else | |
300 | busdevfunc = pci_find_device(scsi_device_list[i].vendor, | |
301 | scsi_device_list[i].device, | |
302 | 0); | |
303 | #endif | |
304 | if (busdevfunc != -1) | |
305 | break; | |
306 | } | |
307 | ||
308 | if (busdevfunc == -1) { | |
309 | printf("Error: SCSI Controller(s) "); | |
310 | for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { | |
311 | printf("%04X:%04X ", | |
312 | scsi_device_list[i].vendor, | |
313 | scsi_device_list[i].device); | |
314 | } | |
315 | printf("not found\n"); | |
316 | return; | |
317 | } | |
318 | #ifdef DEBUG | |
319 | else { | |
320 | printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n", | |
321 | scsi_device_list[i].vendor, | |
322 | scsi_device_list[i].device, | |
323 | (busdevfunc >> 16) & 0xFF, | |
324 | (busdevfunc >> 11) & 0x1F, | |
325 | (busdevfunc >> 8) & 0x7); | |
326 | } | |
327 | #endif | |
328 | bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci"); | |
329 | scsi_low_level_init(busdevfunc); | |
8eab1a58 | 330 | scsi_scan(true); |
11f610ed SG |
331 | bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI); |
332 | } | |
333 | #endif | |
334 | ||
11f610ed SG |
335 | /* copy src to dest, skipping leading and trailing blanks |
336 | * and null terminate the string | |
337 | */ | |
545a2847 MS |
338 | static void scsi_ident_cpy(unsigned char *dest, unsigned char *src, |
339 | unsigned int len) | |
11f610ed SG |
340 | { |
341 | int start, end; | |
342 | ||
343 | start = 0; | |
344 | while (start < len) { | |
345 | if (src[start] != ' ') | |
346 | break; | |
347 | start++; | |
348 | } | |
349 | end = len-1; | |
350 | while (end > start) { | |
351 | if (src[end] != ' ') | |
352 | break; | |
353 | end--; | |
354 | } | |
355 | for (; start <= end; start++) | |
356 | *dest ++= src[start]; | |
357 | *dest = '\0'; | |
358 | } | |
359 | ||
4682c8a1 SG |
360 | static int scsi_read_capacity(struct udevice *dev, struct scsi_cmd *pccb, |
361 | lbaint_t *capacity, unsigned long *blksz) | |
11f610ed SG |
362 | { |
363 | *capacity = 0; | |
364 | ||
365 | memset(pccb->cmd, '\0', sizeof(pccb->cmd)); | |
366 | pccb->cmd[0] = SCSI_RD_CAPAC10; | |
367 | pccb->cmd[1] = pccb->lun << 5; | |
368 | pccb->cmdlen = 10; | |
369 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
370 | ||
371 | pccb->datalen = 8; | |
f6580ef3 | 372 | if (scsi_exec(dev, pccb)) |
11f610ed SG |
373 | return 1; |
374 | ||
375 | *capacity = ((lbaint_t)pccb->pdata[0] << 24) | | |
376 | ((lbaint_t)pccb->pdata[1] << 16) | | |
377 | ((lbaint_t)pccb->pdata[2] << 8) | | |
378 | ((lbaint_t)pccb->pdata[3]); | |
379 | ||
380 | if (*capacity != 0xffffffff) { | |
381 | /* Read capacity (10) was sufficient for this drive. */ | |
382 | *blksz = ((unsigned long)pccb->pdata[4] << 24) | | |
383 | ((unsigned long)pccb->pdata[5] << 16) | | |
384 | ((unsigned long)pccb->pdata[6] << 8) | | |
385 | ((unsigned long)pccb->pdata[7]); | |
386 | return 0; | |
387 | } | |
388 | ||
389 | /* Read capacity (10) was insufficient. Use read capacity (16). */ | |
390 | memset(pccb->cmd, '\0', sizeof(pccb->cmd)); | |
391 | pccb->cmd[0] = SCSI_RD_CAPAC16; | |
392 | pccb->cmd[1] = 0x10; | |
393 | pccb->cmdlen = 16; | |
394 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
395 | ||
396 | pccb->datalen = 16; | |
f6580ef3 | 397 | if (scsi_exec(dev, pccb)) |
11f610ed SG |
398 | return 1; |
399 | ||
400 | *capacity = ((uint64_t)pccb->pdata[0] << 56) | | |
401 | ((uint64_t)pccb->pdata[1] << 48) | | |
402 | ((uint64_t)pccb->pdata[2] << 40) | | |
403 | ((uint64_t)pccb->pdata[3] << 32) | | |
404 | ((uint64_t)pccb->pdata[4] << 24) | | |
405 | ((uint64_t)pccb->pdata[5] << 16) | | |
406 | ((uint64_t)pccb->pdata[6] << 8) | | |
407 | ((uint64_t)pccb->pdata[7]); | |
408 | ||
409 | *blksz = ((uint64_t)pccb->pdata[8] << 56) | | |
410 | ((uint64_t)pccb->pdata[9] << 48) | | |
411 | ((uint64_t)pccb->pdata[10] << 40) | | |
412 | ((uint64_t)pccb->pdata[11] << 32) | | |
413 | ((uint64_t)pccb->pdata[12] << 24) | | |
414 | ((uint64_t)pccb->pdata[13] << 16) | | |
415 | ((uint64_t)pccb->pdata[14] << 8) | | |
416 | ((uint64_t)pccb->pdata[15]); | |
417 | ||
418 | return 0; | |
419 | } | |
420 | ||
421 | ||
422 | /* | |
423 | * Some setup (fill-in) routines | |
424 | */ | |
b9560ad6 | 425 | static void scsi_setup_test_unit_ready(struct scsi_cmd *pccb) |
11f610ed SG |
426 | { |
427 | pccb->cmd[0] = SCSI_TST_U_RDY; | |
428 | pccb->cmd[1] = pccb->lun << 5; | |
429 | pccb->cmd[2] = 0; | |
430 | pccb->cmd[3] = 0; | |
431 | pccb->cmd[4] = 0; | |
432 | pccb->cmd[5] = 0; | |
433 | pccb->cmdlen = 6; | |
434 | pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ | |
435 | } | |
436 | ||
0b3a58ee MS |
437 | /** |
438 | * scsi_init_dev_desc_priv - initialize only SCSI specific blk_desc properties | |
439 | * | |
440 | * @dev_desc: Block device description pointer | |
441 | */ | |
442 | static void scsi_init_dev_desc_priv(struct blk_desc *dev_desc) | |
92ca476c MS |
443 | { |
444 | dev_desc->target = 0xff; | |
445 | dev_desc->lun = 0xff; | |
92ca476c MS |
446 | dev_desc->log2blksz = |
447 | LOG2_INVALID(typeof(dev_desc->log2blksz)); | |
448 | dev_desc->type = DEV_TYPE_UNKNOWN; | |
449 | dev_desc->vendor[0] = 0; | |
450 | dev_desc->product[0] = 0; | |
451 | dev_desc->revision[0] = 0; | |
452 | dev_desc->removable = false; | |
c4d660d4 | 453 | #if !CONFIG_IS_ENABLED(BLK) |
92ca476c MS |
454 | dev_desc->block_read = scsi_read; |
455 | dev_desc->block_write = scsi_write; | |
456 | #endif | |
457 | } | |
458 | ||
e8a016b5 | 459 | #if !defined(CONFIG_DM_SCSI) |
0b3a58ee MS |
460 | /** |
461 | * scsi_init_dev_desc - initialize all SCSI specific blk_desc properties | |
462 | * | |
463 | * @dev_desc: Block device description pointer | |
464 | * @devnum: Device number | |
465 | */ | |
466 | static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum) | |
467 | { | |
468 | dev_desc->lba = 0; | |
469 | dev_desc->blksz = 0; | |
470 | dev_desc->if_type = IF_TYPE_SCSI; | |
471 | dev_desc->devnum = devnum; | |
472 | dev_desc->part_type = PART_TYPE_UNKNOWN; | |
473 | ||
474 | scsi_init_dev_desc_priv(dev_desc); | |
475 | } | |
e8a016b5 | 476 | #endif |
bccfd9e9 | 477 | |
570712f4 MS |
478 | /** |
479 | * scsi_detect_dev - Detect scsi device | |
480 | * | |
bccfd9e9 | 481 | * @target: target id |
e39cecfd | 482 | * @lun: target lun |
570712f4 | 483 | * @dev_desc: block device description |
570712f4 MS |
484 | * |
485 | * The scsi_detect_dev detects and fills a dev_desc structure when the device is | |
e39cecfd | 486 | * detected. |
570712f4 MS |
487 | * |
488 | * Return: 0 on success, error value otherwise | |
489 | */ | |
4682c8a1 SG |
490 | static int scsi_detect_dev(struct udevice *dev, int target, int lun, |
491 | struct blk_desc *dev_desc) | |
570712f4 MS |
492 | { |
493 | unsigned char perq, modi; | |
494 | lbaint_t capacity; | |
495 | unsigned long blksz; | |
b9560ad6 | 496 | struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb; |
570712f4 | 497 | |
bccfd9e9 | 498 | pccb->target = target; |
e39cecfd | 499 | pccb->lun = lun; |
570712f4 MS |
500 | pccb->pdata = (unsigned char *)&tempbuff; |
501 | pccb->datalen = 512; | |
502 | scsi_setup_inquiry(pccb); | |
f6580ef3 | 503 | if (scsi_exec(dev, pccb)) { |
570712f4 MS |
504 | if (pccb->contr_stat == SCSI_SEL_TIME_OUT) { |
505 | /* | |
506 | * selection timeout => assuming no | |
507 | * device present | |
508 | */ | |
509 | debug("Selection timeout ID %d\n", | |
510 | pccb->target); | |
511 | return -ETIMEDOUT; | |
512 | } | |
513 | scsi_print_error(pccb); | |
514 | return -ENODEV; | |
515 | } | |
516 | perq = tempbuff[0]; | |
517 | modi = tempbuff[1]; | |
518 | if ((perq & 0x1f) == 0x1f) | |
519 | return -ENODEV; /* skip unknown devices */ | |
520 | if ((modi & 0x80) == 0x80) /* drive is removable */ | |
521 | dev_desc->removable = true; | |
522 | /* get info for this device */ | |
523 | scsi_ident_cpy((unsigned char *)dev_desc->vendor, | |
524 | &tempbuff[8], 8); | |
525 | scsi_ident_cpy((unsigned char *)dev_desc->product, | |
526 | &tempbuff[16], 16); | |
527 | scsi_ident_cpy((unsigned char *)dev_desc->revision, | |
528 | &tempbuff[32], 4); | |
529 | dev_desc->target = pccb->target; | |
530 | dev_desc->lun = pccb->lun; | |
531 | ||
532 | pccb->datalen = 0; | |
533 | scsi_setup_test_unit_ready(pccb); | |
f6580ef3 | 534 | if (scsi_exec(dev, pccb)) { |
570712f4 MS |
535 | if (dev_desc->removable) { |
536 | dev_desc->type = perq; | |
537 | goto removable; | |
538 | } | |
539 | scsi_print_error(pccb); | |
540 | return -EINVAL; | |
541 | } | |
4682c8a1 | 542 | if (scsi_read_capacity(dev, pccb, &capacity, &blksz)) { |
570712f4 MS |
543 | scsi_print_error(pccb); |
544 | return -EINVAL; | |
545 | } | |
546 | dev_desc->lba = capacity; | |
547 | dev_desc->blksz = blksz; | |
548 | dev_desc->log2blksz = LOG2(dev_desc->blksz); | |
549 | dev_desc->type = perq; | |
570712f4 MS |
550 | removable: |
551 | return 0; | |
552 | } | |
553 | ||
11f610ed SG |
554 | /* |
555 | * (re)-scan the scsi bus and reports scsi device info | |
556 | * to the user if mode = 1 | |
557 | */ | |
e8a016b5 | 558 | #if defined(CONFIG_DM_SCSI) |
8eab1a58 | 559 | static int do_scsi_scan_one(struct udevice *dev, int id, int lun, bool verbose) |
d52063b8 JJH |
560 | { |
561 | int ret; | |
562 | struct udevice *bdev; | |
563 | struct blk_desc bd; | |
564 | struct blk_desc *bdesc; | |
565 | char str[10]; | |
566 | ||
567 | /* | |
568 | * detect the scsi driver to get information about its geometry (block | |
569 | * size, number of blocks) and other parameters (ids, type, ...) | |
570 | */ | |
571 | scsi_init_dev_desc_priv(&bd); | |
4682c8a1 | 572 | if (scsi_detect_dev(dev, id, lun, &bd)) |
d52063b8 JJH |
573 | return -ENODEV; |
574 | ||
575 | /* | |
576 | * Create only one block device and do detection | |
577 | * to make sure that there won't be a lot of | |
578 | * block devices created | |
579 | */ | |
580 | snprintf(str, sizeof(str), "id%dlun%d", id, lun); | |
581 | ret = blk_create_devicef(dev, "scsi_blk", str, IF_TYPE_SCSI, -1, | |
5fe7702e | 582 | bd.blksz, bd.lba, &bdev); |
d52063b8 JJH |
583 | if (ret) { |
584 | debug("Can't create device\n"); | |
585 | return ret; | |
586 | } | |
587 | ||
588 | bdesc = dev_get_uclass_platdata(bdev); | |
589 | bdesc->target = id; | |
590 | bdesc->lun = lun; | |
591 | bdesc->removable = bd.removable; | |
592 | bdesc->type = bd.type; | |
593 | memcpy(&bdesc->vendor, &bd.vendor, sizeof(bd.vendor)); | |
594 | memcpy(&bdesc->product, &bd.product, sizeof(bd.product)); | |
595 | memcpy(&bdesc->revision, &bd.revision, sizeof(bd.revision)); | |
d52063b8 | 596 | |
8eab1a58 | 597 | if (verbose) { |
90037d4c | 598 | printf(" Device %d: ", bdesc->devnum); |
d52063b8 JJH |
599 | dev_print(bdesc); |
600 | } | |
601 | return 0; | |
602 | } | |
603 | ||
5c561763 SG |
604 | int scsi_scan_dev(struct udevice *dev, bool verbose) |
605 | { | |
606 | struct scsi_platdata *uc_plat; /* scsi controller platdata */ | |
607 | int ret; | |
608 | int i; | |
609 | int lun; | |
610 | ||
611 | /* probe SCSI controller driver */ | |
612 | ret = device_probe(dev); | |
613 | if (ret) | |
614 | return ret; | |
615 | ||
616 | /* Get controller platdata */ | |
617 | uc_plat = dev_get_uclass_platdata(dev); | |
618 | ||
619 | for (i = 0; i < uc_plat->max_id; i++) | |
620 | for (lun = 0; lun < uc_plat->max_lun; lun++) | |
621 | do_scsi_scan_one(dev, i, lun, verbose); | |
622 | ||
623 | return 0; | |
624 | } | |
625 | ||
8eab1a58 | 626 | int scsi_scan(bool verbose) |
e8a016b5 | 627 | { |
e8a016b5 MS |
628 | struct uclass *uc; |
629 | struct udevice *dev; /* SCSI controller */ | |
630 | int ret; | |
631 | ||
8eab1a58 | 632 | if (verbose) |
e8a016b5 MS |
633 | printf("scanning bus for devices...\n"); |
634 | ||
f8f41ae6 MS |
635 | blk_unbind_all(IF_TYPE_SCSI); |
636 | ||
e8a016b5 MS |
637 | ret = uclass_get(UCLASS_SCSI, &uc); |
638 | if (ret) | |
639 | return ret; | |
640 | ||
641 | uclass_foreach_dev(dev, uc) { | |
5c561763 | 642 | ret = scsi_scan_dev(dev, verbose); |
e8a016b5 MS |
643 | if (ret) |
644 | return ret; | |
e8a016b5 MS |
645 | } |
646 | ||
647 | return 0; | |
648 | } | |
649 | #else | |
8eab1a58 | 650 | int scsi_scan(bool verbose) |
11f610ed | 651 | { |
570712f4 MS |
652 | unsigned char i, lun; |
653 | int ret; | |
11f610ed | 654 | |
8eab1a58 | 655 | if (verbose) |
11f610ed | 656 | printf("scanning bus for devices...\n"); |
92ca476c MS |
657 | for (i = 0; i < CONFIG_SYS_SCSI_MAX_DEVICE; i++) |
658 | scsi_init_dev_desc(&scsi_dev_desc[i], i); | |
659 | ||
11f610ed SG |
660 | scsi_max_devs = 0; |
661 | for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) { | |
11f610ed | 662 | for (lun = 0; lun < CONFIG_SYS_SCSI_MAX_LUN; lun++) { |
90037d4c HS |
663 | struct blk_desc *bdesc = &scsi_dev_desc[scsi_max_devs]; |
664 | ||
665 | ret = scsi_detect_dev(NULL, i, lun, bdesc); | |
570712f4 | 666 | if (ret) |
11f610ed | 667 | continue; |
90037d4c | 668 | part_init(bdesc); |
570712f4 | 669 | |
8eab1a58 | 670 | if (verbose) { |
90037d4c HS |
671 | printf(" Device %d: ", bdesc->devnum); |
672 | dev_print(bdesc); | |
8eab1a58 | 673 | } |
11f610ed SG |
674 | scsi_max_devs++; |
675 | } /* next LUN */ | |
676 | } | |
677 | if (scsi_max_devs > 0) | |
678 | scsi_curr_dev = 0; | |
679 | else | |
680 | scsi_curr_dev = -1; | |
681 | ||
682 | printf("Found %d device(s).\n", scsi_max_devs); | |
683 | #ifndef CONFIG_SPL_BUILD | |
018f5303 | 684 | env_set_ulong("scsidevs", scsi_max_devs); |
11f610ed | 685 | #endif |
c002e39a | 686 | return 0; |
11f610ed | 687 | } |
e8a016b5 | 688 | #endif |
11f610ed | 689 | |
535556b2 SG |
690 | #ifdef CONFIG_BLK |
691 | static const struct blk_ops scsi_blk_ops = { | |
692 | .read = scsi_read, | |
693 | .write = scsi_write, | |
694 | }; | |
695 | ||
696 | U_BOOT_DRIVER(scsi_blk) = { | |
697 | .name = "scsi_blk", | |
698 | .id = UCLASS_BLK, | |
699 | .ops = &scsi_blk_ops, | |
700 | }; | |
701 | #else | |
11f610ed | 702 | U_BOOT_LEGACY_BLK(scsi) = { |
69c125fe | 703 | .if_typename = "scsi", |
11f610ed SG |
704 | .if_type = IF_TYPE_SCSI, |
705 | .max_devs = CONFIG_SYS_SCSI_MAX_DEVICE, | |
706 | .desc = scsi_dev_desc, | |
707 | }; | |
535556b2 | 708 | #endif |