blob: 0639eb6b310f7d17b2be8c92271068277482e061 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glass11f610e2016-05-01 11:36:09 -06002/*
3 * (C) Copyright 2001
4 * Denis Peter, MPL AG Switzerland
Simon Glass11f610e2016-05-01 11:36:09 -06005 */
6
7#include <common.h>
Simon Glass535556b2016-05-01 11:36:24 -06008#include <dm.h>
Simon Glass168068f2019-08-01 09:46:47 -06009#include <env.h>
Simon Glass11f610e2016-05-01 11:36:09 -060010#include <pci.h>
11#include <scsi.h>
Michal Simeke8a016b2016-09-08 15:06:45 +020012#include <dm/device-internal.h>
13#include <dm/uclass-internal.h>
Simon Glass11f610e2016-05-01 11:36:09 -060014
Michal Simeke8a016b2016-09-08 15:06:45 +020015#if !defined(CONFIG_DM_SCSI)
Simon Glass099c2392017-06-14 21:28:35 -060016# ifdef CONFIG_SCSI_DEV_LIST
17# define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
18# else
19# ifdef CONFIG_SATA_ULI5288
Simon Glass11f610e2016-05-01 11:36:09 -060020
Simon Glass099c2392017-06-14 21:28:35 -060021# define SCSI_VEND_ID 0x10b9
22# define SCSI_DEV_ID 0x5288
Simon Glass11f610e2016-05-01 11:36:09 -060023
Simon Glass099c2392017-06-14 21:28:35 -060024# 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
Michal Simeke8a016b2016-09-08 15:06:45 +020029#endif
Simon Glass11f610e2016-05-01 11:36:09 -060030
Simon Glass7337fcd2017-06-14 21:28:47 -060031#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \
32 !defined(CONFIG_DM_SCSI)
Simon Glass11f610e2016-05-01 11:36:09 -060033const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
34#endif
Simon Glassb9560ad2017-06-14 21:28:30 -060035static struct scsi_cmd tempccb; /* temporary scsi command buffer */
Simon Glass11f610e2016-05-01 11:36:09 -060036
37static unsigned char tempbuff[512]; /* temporary data buffer */
38
Michal Simeke8a016b2016-09-08 15:06:45 +020039#if !defined(CONFIG_DM_SCSI)
Simon Glass11f610e2016-05-01 11:36:09 -060040static int scsi_max_devs; /* number of highest available scsi device */
41
42static int scsi_curr_dev; /* current device */
43
44static struct blk_desc scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
Michal Simeke8a016b2016-09-08 15:06:45 +020045#endif
Simon Glass11f610e2016-05-01 11:36:09 -060046
47/* almost the maximum amount of the scsi_ext command.. */
Faiz Abbas4ff57282019-10-15 18:24:33 +053048#define SCSI_MAX_BLK 0xFFFF
Simon Glass11f610e2016-05-01 11:36:09 -060049#define SCSI_LBA48_READ 0xFFFFFFF
50
Simon Glassb9560ad2017-06-14 21:28:30 -060051static void scsi_print_error(struct scsi_cmd *pccb)
Simon Glassa6fb1852017-06-14 21:28:23 -060052{
53 /* Dummy function that could print an error for debugging */
54}
55
Simon Glass11f610e2016-05-01 11:36:09 -060056#ifdef CONFIG_SYS_64BIT_LBA
Simon Glassb9560ad2017-06-14 21:28:30 -060057void scsi_setup_read16(struct scsi_cmd *pccb, lbaint_t start,
58 unsigned long blocks)
Simon Glass11f610e2016-05-01 11:36:09 -060059{
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
Faiz Abbas66c54f12019-10-15 18:24:32 +053086static void scsi_setup_inquiry(struct scsi_cmd *pccb)
87{
88 pccb->cmd[0] = SCSI_INQUIRY;
89 pccb->cmd[1] = pccb->lun << 5;
90 pccb->cmd[2] = 0;
91 pccb->cmd[3] = 0;
92 if (pccb->datalen > 255)
93 pccb->cmd[4] = 255;
94 else
95 pccb->cmd[4] = (unsigned char)pccb->datalen;
96 pccb->cmd[5] = 0;
97 pccb->cmdlen = 6;
98 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
99}
100
101#ifdef CONFIG_BLK
Simon Glassb9560ad2017-06-14 21:28:30 -0600102static void scsi_setup_read_ext(struct scsi_cmd *pccb, lbaint_t start,
Michal Simek545a2842016-11-30 11:53:43 +0100103 unsigned short blocks)
Simon Glass11f610e2016-05-01 11:36:09 -0600104{
105 pccb->cmd[0] = SCSI_READ10;
106 pccb->cmd[1] = pccb->lun << 5;
107 pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
108 pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
109 pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
110 pccb->cmd[5] = (unsigned char)start & 0xff;
111 pccb->cmd[6] = 0;
112 pccb->cmd[7] = (unsigned char)(blocks >> 8) & 0xff;
113 pccb->cmd[8] = (unsigned char)blocks & 0xff;
114 pccb->cmd[6] = 0;
115 pccb->cmdlen = 10;
116 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
117 debug("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
118 pccb->cmd[0], pccb->cmd[1],
119 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
120 pccb->cmd[7], pccb->cmd[8]);
121}
122
Simon Glassb9560ad2017-06-14 21:28:30 -0600123static void scsi_setup_write_ext(struct scsi_cmd *pccb, lbaint_t start,
Michal Simek545a2842016-11-30 11:53:43 +0100124 unsigned short blocks)
Simon Glass11f610e2016-05-01 11:36:09 -0600125{
126 pccb->cmd[0] = SCSI_WRITE10;
127 pccb->cmd[1] = pccb->lun << 5;
128 pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
129 pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
130 pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
131 pccb->cmd[5] = (unsigned char)start & 0xff;
132 pccb->cmd[6] = 0;
133 pccb->cmd[7] = ((unsigned char)(blocks >> 8)) & 0xff;
134 pccb->cmd[8] = (unsigned char)blocks & 0xff;
135 pccb->cmd[9] = 0;
136 pccb->cmdlen = 10;
137 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
138 debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
139 __func__,
140 pccb->cmd[0], pccb->cmd[1],
141 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
142 pccb->cmd[7], pccb->cmd[8]);
143}
144
Simon Glass535556b2016-05-01 11:36:24 -0600145static ulong scsi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
146 void *buffer)
Simon Glass11f610e2016-05-01 11:36:09 -0600147{
Simon Glass535556b2016-05-01 11:36:24 -0600148 struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
Simon Glass4682c8a2017-06-14 21:28:40 -0600149 struct udevice *bdev = dev->parent;
Faiz Abbas4ff57282019-10-15 18:24:33 +0530150 struct scsi_platdata *uc_plat = dev_get_uclass_platdata(bdev);
151 lbaint_t start, blks, max_blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600152 uintptr_t buf_addr;
153 unsigned short smallblks = 0;
Simon Glassb9560ad2017-06-14 21:28:30 -0600154 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Simon Glass11f610e2016-05-01 11:36:09 -0600155
156 /* Setup device */
Michal Simekcdb93b22016-11-18 16:22:42 +0100157 pccb->target = block_dev->target;
158 pccb->lun = block_dev->lun;
Simon Glass11f610e2016-05-01 11:36:09 -0600159 buf_addr = (unsigned long)buffer;
160 start = blknr;
161 blks = blkcnt;
Faiz Abbas4ff57282019-10-15 18:24:33 +0530162 if (uc_plat->max_bytes_per_req)
163 max_blks = uc_plat->max_bytes_per_req / block_dev->blksz;
164 else
165 max_blks = SCSI_MAX_BLK;
166
Simon Glass11f610e2016-05-01 11:36:09 -0600167 debug("\nscsi_read: dev %d startblk " LBAF
168 ", blccnt " LBAF " buffer %lx\n",
Michal Simekcdb93b22016-11-18 16:22:42 +0100169 block_dev->devnum, start, blks, (unsigned long)buffer);
Simon Glass11f610e2016-05-01 11:36:09 -0600170 do {
171 pccb->pdata = (unsigned char *)buf_addr;
172#ifdef CONFIG_SYS_64BIT_LBA
173 if (start > SCSI_LBA48_READ) {
174 unsigned long blocks;
Faiz Abbas4ff57282019-10-15 18:24:33 +0530175 blocks = min_t(lbaint_t, blks, max_blks);
Michal Simekcdb93b22016-11-18 16:22:42 +0100176 pccb->datalen = block_dev->blksz * blocks;
Simon Glass11f610e2016-05-01 11:36:09 -0600177 scsi_setup_read16(pccb, start, blocks);
178 start += blocks;
179 blks -= blocks;
180 } else
181#endif
Faiz Abbas4ff57282019-10-15 18:24:33 +0530182 if (blks > max_blks) {
183 pccb->datalen = block_dev->blksz * max_blks;
184 smallblks = max_blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600185 scsi_setup_read_ext(pccb, start, smallblks);
Faiz Abbas4ff57282019-10-15 18:24:33 +0530186 start += max_blks;
187 blks -= max_blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600188 } else {
Michal Simekcdb93b22016-11-18 16:22:42 +0100189 pccb->datalen = block_dev->blksz * blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600190 smallblks = (unsigned short)blks;
191 scsi_setup_read_ext(pccb, start, smallblks);
192 start += blks;
193 blks = 0;
194 }
195 debug("scsi_read_ext: startblk " LBAF
Masahiro Yamadadee37fc2018-08-06 20:47:40 +0900196 ", blccnt %x buffer %lX\n",
Simon Glass11f610e2016-05-01 11:36:09 -0600197 start, smallblks, buf_addr);
Simon Glass4682c8a2017-06-14 21:28:40 -0600198 if (scsi_exec(bdev, pccb)) {
Simon Glass11f610e2016-05-01 11:36:09 -0600199 scsi_print_error(pccb);
200 blkcnt -= blks;
201 break;
202 }
203 buf_addr += pccb->datalen;
204 } while (blks != 0);
205 debug("scsi_read_ext: end startblk " LBAF
Masahiro Yamadadee37fc2018-08-06 20:47:40 +0900206 ", blccnt %x buffer %lX\n", start, smallblks, buf_addr);
Simon Glass11f610e2016-05-01 11:36:09 -0600207 return blkcnt;
208}
209
210/*******************************************************************************
211 * scsi_write
212 */
213
Simon Glass535556b2016-05-01 11:36:24 -0600214static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
215 const void *buffer)
Simon Glass11f610e2016-05-01 11:36:09 -0600216{
Simon Glass535556b2016-05-01 11:36:24 -0600217 struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
Simon Glass4682c8a2017-06-14 21:28:40 -0600218 struct udevice *bdev = dev->parent;
Faiz Abbas4ff57282019-10-15 18:24:33 +0530219 struct scsi_platdata *uc_plat = dev_get_uclass_platdata(bdev);
220 lbaint_t start, blks, max_blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600221 uintptr_t buf_addr;
222 unsigned short smallblks;
Simon Glassb9560ad2017-06-14 21:28:30 -0600223 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Simon Glass11f610e2016-05-01 11:36:09 -0600224
Simon Glass11f610e2016-05-01 11:36:09 -0600225 /* Setup device */
Michal Simekcdb93b22016-11-18 16:22:42 +0100226 pccb->target = block_dev->target;
227 pccb->lun = block_dev->lun;
Simon Glass11f610e2016-05-01 11:36:09 -0600228 buf_addr = (unsigned long)buffer;
229 start = blknr;
230 blks = blkcnt;
Faiz Abbas4ff57282019-10-15 18:24:33 +0530231 if (uc_plat->max_bytes_per_req)
232 max_blks = uc_plat->max_bytes_per_req / block_dev->blksz;
233 else
234 max_blks = SCSI_MAX_BLK;
235
Simon Glass11f610e2016-05-01 11:36:09 -0600236 debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
Michal Simekcdb93b22016-11-18 16:22:42 +0100237 __func__, block_dev->devnum, start, blks, (unsigned long)buffer);
Simon Glass11f610e2016-05-01 11:36:09 -0600238 do {
239 pccb->pdata = (unsigned char *)buf_addr;
Faiz Abbas4ff57282019-10-15 18:24:33 +0530240 if (blks > max_blks) {
241 pccb->datalen = block_dev->blksz * max_blks;
242 smallblks = max_blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600243 scsi_setup_write_ext(pccb, start, smallblks);
Faiz Abbas4ff57282019-10-15 18:24:33 +0530244 start += max_blks;
245 blks -= max_blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600246 } else {
Michal Simekcdb93b22016-11-18 16:22:42 +0100247 pccb->datalen = block_dev->blksz * blks;
Simon Glass11f610e2016-05-01 11:36:09 -0600248 smallblks = (unsigned short)blks;
249 scsi_setup_write_ext(pccb, start, smallblks);
250 start += blks;
251 blks = 0;
252 }
Masahiro Yamadadee37fc2018-08-06 20:47:40 +0900253 debug("%s: startblk " LBAF ", blccnt %x buffer %lx\n",
Simon Glass11f610e2016-05-01 11:36:09 -0600254 __func__, start, smallblks, buf_addr);
Simon Glass4682c8a2017-06-14 21:28:40 -0600255 if (scsi_exec(bdev, pccb)) {
Simon Glass11f610e2016-05-01 11:36:09 -0600256 scsi_print_error(pccb);
257 blkcnt -= blks;
258 break;
259 }
260 buf_addr += pccb->datalen;
261 } while (blks != 0);
Masahiro Yamadadee37fc2018-08-06 20:47:40 +0900262 debug("%s: end startblk " LBAF ", blccnt %x buffer %lX\n",
Simon Glass11f610e2016-05-01 11:36:09 -0600263 __func__, start, smallblks, buf_addr);
264 return blkcnt;
265}
Faiz Abbas66c54f12019-10-15 18:24:32 +0530266#endif
Simon Glass11f610e2016-05-01 11:36:09 -0600267
Simon Glass7337fcd2017-06-14 21:28:47 -0600268#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \
269 !defined(CONFIG_DM_SCSI)
Simon Glass11f610e2016-05-01 11:36:09 -0600270void scsi_init(void)
271{
272 int busdevfunc = -1;
273 int i;
274 /*
275 * Find a device from the list, this driver will support a single
276 * controller.
277 */
278 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
279 /* get PCI Device ID */
280#ifdef CONFIG_DM_PCI
281 struct udevice *dev;
282 int ret;
283
284 ret = dm_pci_find_device(scsi_device_list[i].vendor,
285 scsi_device_list[i].device, 0, &dev);
286 if (!ret) {
287 busdevfunc = dm_pci_get_bdf(dev);
288 break;
289 }
290#else
291 busdevfunc = pci_find_device(scsi_device_list[i].vendor,
292 scsi_device_list[i].device,
293 0);
294#endif
295 if (busdevfunc != -1)
296 break;
297 }
298
299 if (busdevfunc == -1) {
300 printf("Error: SCSI Controller(s) ");
301 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
302 printf("%04X:%04X ",
303 scsi_device_list[i].vendor,
304 scsi_device_list[i].device);
305 }
306 printf("not found\n");
307 return;
308 }
309#ifdef DEBUG
310 else {
311 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
312 scsi_device_list[i].vendor,
313 scsi_device_list[i].device,
314 (busdevfunc >> 16) & 0xFF,
315 (busdevfunc >> 11) & 0x1F,
316 (busdevfunc >> 8) & 0x7);
317 }
318#endif
319 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
320 scsi_low_level_init(busdevfunc);
Simon Glass8eab1a52017-06-14 21:28:41 -0600321 scsi_scan(true);
Simon Glass11f610e2016-05-01 11:36:09 -0600322 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
323}
324#endif
325
Simon Glass11f610e2016-05-01 11:36:09 -0600326/* copy src to dest, skipping leading and trailing blanks
327 * and null terminate the string
328 */
Michal Simek545a2842016-11-30 11:53:43 +0100329static void scsi_ident_cpy(unsigned char *dest, unsigned char *src,
330 unsigned int len)
Simon Glass11f610e2016-05-01 11:36:09 -0600331{
332 int start, end;
333
334 start = 0;
335 while (start < len) {
336 if (src[start] != ' ')
337 break;
338 start++;
339 }
340 end = len-1;
341 while (end > start) {
342 if (src[end] != ' ')
343 break;
344 end--;
345 }
346 for (; start <= end; start++)
347 *dest ++= src[start];
348 *dest = '\0';
349}
350
Simon Glass4682c8a2017-06-14 21:28:40 -0600351static int scsi_read_capacity(struct udevice *dev, struct scsi_cmd *pccb,
352 lbaint_t *capacity, unsigned long *blksz)
Simon Glass11f610e2016-05-01 11:36:09 -0600353{
354 *capacity = 0;
355
356 memset(pccb->cmd, '\0', sizeof(pccb->cmd));
357 pccb->cmd[0] = SCSI_RD_CAPAC10;
358 pccb->cmd[1] = pccb->lun << 5;
359 pccb->cmdlen = 10;
360 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
361
362 pccb->datalen = 8;
Simon Glassf6580ef2017-06-14 21:28:44 -0600363 if (scsi_exec(dev, pccb))
Simon Glass11f610e2016-05-01 11:36:09 -0600364 return 1;
365
366 *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
367 ((lbaint_t)pccb->pdata[1] << 16) |
368 ((lbaint_t)pccb->pdata[2] << 8) |
369 ((lbaint_t)pccb->pdata[3]);
370
371 if (*capacity != 0xffffffff) {
372 /* Read capacity (10) was sufficient for this drive. */
373 *blksz = ((unsigned long)pccb->pdata[4] << 24) |
374 ((unsigned long)pccb->pdata[5] << 16) |
375 ((unsigned long)pccb->pdata[6] << 8) |
376 ((unsigned long)pccb->pdata[7]);
377 return 0;
378 }
379
380 /* Read capacity (10) was insufficient. Use read capacity (16). */
381 memset(pccb->cmd, '\0', sizeof(pccb->cmd));
382 pccb->cmd[0] = SCSI_RD_CAPAC16;
383 pccb->cmd[1] = 0x10;
384 pccb->cmdlen = 16;
385 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
386
387 pccb->datalen = 16;
Simon Glassf6580ef2017-06-14 21:28:44 -0600388 if (scsi_exec(dev, pccb))
Simon Glass11f610e2016-05-01 11:36:09 -0600389 return 1;
390
391 *capacity = ((uint64_t)pccb->pdata[0] << 56) |
392 ((uint64_t)pccb->pdata[1] << 48) |
393 ((uint64_t)pccb->pdata[2] << 40) |
394 ((uint64_t)pccb->pdata[3] << 32) |
395 ((uint64_t)pccb->pdata[4] << 24) |
396 ((uint64_t)pccb->pdata[5] << 16) |
397 ((uint64_t)pccb->pdata[6] << 8) |
398 ((uint64_t)pccb->pdata[7]);
399
400 *blksz = ((uint64_t)pccb->pdata[8] << 56) |
401 ((uint64_t)pccb->pdata[9] << 48) |
402 ((uint64_t)pccb->pdata[10] << 40) |
403 ((uint64_t)pccb->pdata[11] << 32) |
404 ((uint64_t)pccb->pdata[12] << 24) |
405 ((uint64_t)pccb->pdata[13] << 16) |
406 ((uint64_t)pccb->pdata[14] << 8) |
407 ((uint64_t)pccb->pdata[15]);
408
409 return 0;
410}
411
412
413/*
414 * Some setup (fill-in) routines
415 */
Simon Glassb9560ad2017-06-14 21:28:30 -0600416static void scsi_setup_test_unit_ready(struct scsi_cmd *pccb)
Simon Glass11f610e2016-05-01 11:36:09 -0600417{
418 pccb->cmd[0] = SCSI_TST_U_RDY;
419 pccb->cmd[1] = pccb->lun << 5;
420 pccb->cmd[2] = 0;
421 pccb->cmd[3] = 0;
422 pccb->cmd[4] = 0;
423 pccb->cmd[5] = 0;
424 pccb->cmdlen = 6;
425 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
426}
427
Michal Simek0b3a58e2016-11-30 12:50:58 +0100428/**
429 * scsi_init_dev_desc_priv - initialize only SCSI specific blk_desc properties
430 *
431 * @dev_desc: Block device description pointer
432 */
433static void scsi_init_dev_desc_priv(struct blk_desc *dev_desc)
Michal Simek92ca4762016-11-18 15:27:00 +0100434{
435 dev_desc->target = 0xff;
436 dev_desc->lun = 0xff;
Michal Simek92ca4762016-11-18 15:27:00 +0100437 dev_desc->log2blksz =
438 LOG2_INVALID(typeof(dev_desc->log2blksz));
439 dev_desc->type = DEV_TYPE_UNKNOWN;
440 dev_desc->vendor[0] = 0;
441 dev_desc->product[0] = 0;
442 dev_desc->revision[0] = 0;
443 dev_desc->removable = false;
Michal Simek92ca4762016-11-18 15:27:00 +0100444}
445
Michal Simeke8a016b2016-09-08 15:06:45 +0200446#if !defined(CONFIG_DM_SCSI)
Michal Simek0b3a58e2016-11-30 12:50:58 +0100447/**
448 * scsi_init_dev_desc - initialize all SCSI specific blk_desc properties
449 *
450 * @dev_desc: Block device description pointer
451 * @devnum: Device number
452 */
453static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum)
454{
455 dev_desc->lba = 0;
456 dev_desc->blksz = 0;
457 dev_desc->if_type = IF_TYPE_SCSI;
458 dev_desc->devnum = devnum;
459 dev_desc->part_type = PART_TYPE_UNKNOWN;
460
461 scsi_init_dev_desc_priv(dev_desc);
462}
Michal Simeke8a016b2016-09-08 15:06:45 +0200463#endif
Michal Simekbccfd9e2016-11-18 16:14:24 +0100464
Michal Simek570712f2016-11-18 15:42:13 +0100465/**
466 * scsi_detect_dev - Detect scsi device
467 *
Michal Simekbccfd9e2016-11-18 16:14:24 +0100468 * @target: target id
Jean-Jacques Hiblote39cecf2017-04-07 13:42:06 +0200469 * @lun: target lun
Michal Simek570712f2016-11-18 15:42:13 +0100470 * @dev_desc: block device description
Michal Simek570712f2016-11-18 15:42:13 +0100471 *
472 * The scsi_detect_dev detects and fills a dev_desc structure when the device is
Jean-Jacques Hiblote39cecf2017-04-07 13:42:06 +0200473 * detected.
Michal Simek570712f2016-11-18 15:42:13 +0100474 *
475 * Return: 0 on success, error value otherwise
476 */
Simon Glass4682c8a2017-06-14 21:28:40 -0600477static int scsi_detect_dev(struct udevice *dev, int target, int lun,
478 struct blk_desc *dev_desc)
Michal Simek570712f2016-11-18 15:42:13 +0100479{
480 unsigned char perq, modi;
481 lbaint_t capacity;
482 unsigned long blksz;
Simon Glassb9560ad2017-06-14 21:28:30 -0600483 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Faiz Abbasd48f00e2019-10-15 18:24:34 +0530484 int count, err;
Michal Simek570712f2016-11-18 15:42:13 +0100485
Michal Simekbccfd9e2016-11-18 16:14:24 +0100486 pccb->target = target;
Jean-Jacques Hiblote39cecf2017-04-07 13:42:06 +0200487 pccb->lun = lun;
Michal Simek570712f2016-11-18 15:42:13 +0100488 pccb->pdata = (unsigned char *)&tempbuff;
489 pccb->datalen = 512;
490 scsi_setup_inquiry(pccb);
Simon Glassf6580ef2017-06-14 21:28:44 -0600491 if (scsi_exec(dev, pccb)) {
Michal Simek570712f2016-11-18 15:42:13 +0100492 if (pccb->contr_stat == SCSI_SEL_TIME_OUT) {
493 /*
494 * selection timeout => assuming no
495 * device present
496 */
497 debug("Selection timeout ID %d\n",
498 pccb->target);
499 return -ETIMEDOUT;
500 }
501 scsi_print_error(pccb);
502 return -ENODEV;
503 }
504 perq = tempbuff[0];
505 modi = tempbuff[1];
506 if ((perq & 0x1f) == 0x1f)
507 return -ENODEV; /* skip unknown devices */
508 if ((modi & 0x80) == 0x80) /* drive is removable */
509 dev_desc->removable = true;
510 /* get info for this device */
511 scsi_ident_cpy((unsigned char *)dev_desc->vendor,
512 &tempbuff[8], 8);
513 scsi_ident_cpy((unsigned char *)dev_desc->product,
514 &tempbuff[16], 16);
515 scsi_ident_cpy((unsigned char *)dev_desc->revision,
516 &tempbuff[32], 4);
517 dev_desc->target = pccb->target;
518 dev_desc->lun = pccb->lun;
519
Faiz Abbasd48f00e2019-10-15 18:24:34 +0530520 for (count = 0; count < 3; count++) {
521 pccb->datalen = 0;
522 scsi_setup_test_unit_ready(pccb);
523 err = scsi_exec(dev, pccb);
524 if (!err)
525 break;
526 }
527 if (err) {
Michal Simek570712f2016-11-18 15:42:13 +0100528 if (dev_desc->removable) {
529 dev_desc->type = perq;
530 goto removable;
531 }
532 scsi_print_error(pccb);
533 return -EINVAL;
534 }
Simon Glass4682c8a2017-06-14 21:28:40 -0600535 if (scsi_read_capacity(dev, pccb, &capacity, &blksz)) {
Michal Simek570712f2016-11-18 15:42:13 +0100536 scsi_print_error(pccb);
537 return -EINVAL;
538 }
539 dev_desc->lba = capacity;
540 dev_desc->blksz = blksz;
541 dev_desc->log2blksz = LOG2(dev_desc->blksz);
542 dev_desc->type = perq;
Michal Simek570712f2016-11-18 15:42:13 +0100543removable:
544 return 0;
545}
546
Simon Glass11f610e2016-05-01 11:36:09 -0600547/*
548 * (re)-scan the scsi bus and reports scsi device info
549 * to the user if mode = 1
550 */
Michal Simeke8a016b2016-09-08 15:06:45 +0200551#if defined(CONFIG_DM_SCSI)
Simon Glass8eab1a52017-06-14 21:28:41 -0600552static int do_scsi_scan_one(struct udevice *dev, int id, int lun, bool verbose)
Jean-Jacques Hiblotd52063b2017-04-24 11:51:26 +0200553{
554 int ret;
555 struct udevice *bdev;
556 struct blk_desc bd;
557 struct blk_desc *bdesc;
558 char str[10];
559
560 /*
561 * detect the scsi driver to get information about its geometry (block
562 * size, number of blocks) and other parameters (ids, type, ...)
563 */
564 scsi_init_dev_desc_priv(&bd);
Simon Glass4682c8a2017-06-14 21:28:40 -0600565 if (scsi_detect_dev(dev, id, lun, &bd))
Jean-Jacques Hiblotd52063b2017-04-24 11:51:26 +0200566 return -ENODEV;
567
568 /*
569 * Create only one block device and do detection
570 * to make sure that there won't be a lot of
571 * block devices created
572 */
573 snprintf(str, sizeof(str), "id%dlun%d", id, lun);
574 ret = blk_create_devicef(dev, "scsi_blk", str, IF_TYPE_SCSI, -1,
Jean-Jacques Hiblot5fe77022017-06-09 16:45:18 +0200575 bd.blksz, bd.lba, &bdev);
Jean-Jacques Hiblotd52063b2017-04-24 11:51:26 +0200576 if (ret) {
577 debug("Can't create device\n");
578 return ret;
579 }
580
581 bdesc = dev_get_uclass_platdata(bdev);
582 bdesc->target = id;
583 bdesc->lun = lun;
584 bdesc->removable = bd.removable;
585 bdesc->type = bd.type;
586 memcpy(&bdesc->vendor, &bd.vendor, sizeof(bd.vendor));
587 memcpy(&bdesc->product, &bd.product, sizeof(bd.product));
588 memcpy(&bdesc->revision, &bd.revision, sizeof(bd.revision));
Jean-Jacques Hiblotd52063b2017-04-24 11:51:26 +0200589
Simon Glass8eab1a52017-06-14 21:28:41 -0600590 if (verbose) {
Heinrich Schuchardt90037d42019-02-05 18:06:24 +0100591 printf(" Device %d: ", bdesc->devnum);
Jean-Jacques Hiblotd52063b2017-04-24 11:51:26 +0200592 dev_print(bdesc);
593 }
594 return 0;
595}
596
Simon Glass5c561762017-06-14 21:28:45 -0600597int scsi_scan_dev(struct udevice *dev, bool verbose)
598{
599 struct scsi_platdata *uc_plat; /* scsi controller platdata */
600 int ret;
601 int i;
602 int lun;
603
604 /* probe SCSI controller driver */
605 ret = device_probe(dev);
606 if (ret)
607 return ret;
608
609 /* Get controller platdata */
610 uc_plat = dev_get_uclass_platdata(dev);
611
612 for (i = 0; i < uc_plat->max_id; i++)
613 for (lun = 0; lun < uc_plat->max_lun; lun++)
614 do_scsi_scan_one(dev, i, lun, verbose);
615
616 return 0;
617}
618
Simon Glass8eab1a52017-06-14 21:28:41 -0600619int scsi_scan(bool verbose)
Michal Simeke8a016b2016-09-08 15:06:45 +0200620{
Michal Simeke8a016b2016-09-08 15:06:45 +0200621 struct uclass *uc;
622 struct udevice *dev; /* SCSI controller */
623 int ret;
624
Simon Glass8eab1a52017-06-14 21:28:41 -0600625 if (verbose)
Michal Simeke8a016b2016-09-08 15:06:45 +0200626 printf("scanning bus for devices...\n");
627
Michal Simekf8f41ae2017-01-02 09:40:09 +0100628 blk_unbind_all(IF_TYPE_SCSI);
629
Michal Simeke8a016b2016-09-08 15:06:45 +0200630 ret = uclass_get(UCLASS_SCSI, &uc);
631 if (ret)
632 return ret;
633
634 uclass_foreach_dev(dev, uc) {
Simon Glass5c561762017-06-14 21:28:45 -0600635 ret = scsi_scan_dev(dev, verbose);
Michal Simeke8a016b2016-09-08 15:06:45 +0200636 if (ret)
637 return ret;
Michal Simeke8a016b2016-09-08 15:06:45 +0200638 }
639
640 return 0;
641}
642#else
Simon Glass8eab1a52017-06-14 21:28:41 -0600643int scsi_scan(bool verbose)
Simon Glass11f610e2016-05-01 11:36:09 -0600644{
Michal Simek570712f2016-11-18 15:42:13 +0100645 unsigned char i, lun;
646 int ret;
Simon Glass11f610e2016-05-01 11:36:09 -0600647
Simon Glass8eab1a52017-06-14 21:28:41 -0600648 if (verbose)
Simon Glass11f610e2016-05-01 11:36:09 -0600649 printf("scanning bus for devices...\n");
Michal Simek92ca4762016-11-18 15:27:00 +0100650 for (i = 0; i < CONFIG_SYS_SCSI_MAX_DEVICE; i++)
651 scsi_init_dev_desc(&scsi_dev_desc[i], i);
652
Simon Glass11f610e2016-05-01 11:36:09 -0600653 scsi_max_devs = 0;
654 for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) {
Simon Glass11f610e2016-05-01 11:36:09 -0600655 for (lun = 0; lun < CONFIG_SYS_SCSI_MAX_LUN; lun++) {
Heinrich Schuchardt90037d42019-02-05 18:06:24 +0100656 struct blk_desc *bdesc = &scsi_dev_desc[scsi_max_devs];
657
658 ret = scsi_detect_dev(NULL, i, lun, bdesc);
Michal Simek570712f2016-11-18 15:42:13 +0100659 if (ret)
Simon Glass11f610e2016-05-01 11:36:09 -0600660 continue;
Heinrich Schuchardt90037d42019-02-05 18:06:24 +0100661 part_init(bdesc);
Simon Glass11f610e2016-05-01 11:36:09 -0600662
Simon Glass8eab1a52017-06-14 21:28:41 -0600663 if (verbose) {
Heinrich Schuchardt90037d42019-02-05 18:06:24 +0100664 printf(" Device %d: ", bdesc->devnum);
665 dev_print(bdesc);
Simon Glass8eab1a52017-06-14 21:28:41 -0600666 }
Simon Glass11f610e2016-05-01 11:36:09 -0600667 scsi_max_devs++;
668 } /* next LUN */
669 }
670 if (scsi_max_devs > 0)
671 scsi_curr_dev = 0;
672 else
673 scsi_curr_dev = -1;
674
675 printf("Found %d device(s).\n", scsi_max_devs);
676#ifndef CONFIG_SPL_BUILD
Simon Glass018f5302017-08-03 12:22:10 -0600677 env_set_ulong("scsidevs", scsi_max_devs);
Simon Glass11f610e2016-05-01 11:36:09 -0600678#endif
Michal Simekc002e392016-11-30 12:12:31 +0100679 return 0;
Simon Glass11f610e2016-05-01 11:36:09 -0600680}
Michal Simeke8a016b2016-09-08 15:06:45 +0200681#endif
Simon Glass11f610e2016-05-01 11:36:09 -0600682
Simon Glass535556b2016-05-01 11:36:24 -0600683#ifdef CONFIG_BLK
684static const struct blk_ops scsi_blk_ops = {
685 .read = scsi_read,
686 .write = scsi_write,
687};
688
689U_BOOT_DRIVER(scsi_blk) = {
690 .name = "scsi_blk",
691 .id = UCLASS_BLK,
692 .ops = &scsi_blk_ops,
693};
694#else
Simon Glass11f610e2016-05-01 11:36:09 -0600695U_BOOT_LEGACY_BLK(scsi) = {
Ed Swarthout69c125f2016-06-01 08:11:24 -0500696 .if_typename = "scsi",
Simon Glass11f610e2016-05-01 11:36:09 -0600697 .if_type = IF_TYPE_SCSI,
698 .max_devs = CONFIG_SYS_SCSI_MAX_DEVICE,
699 .desc = scsi_dev_desc,
700};
Simon Glass535556b2016-05-01 11:36:24 -0600701#endif