Sridhar Parasuram | b48afc7 | 2014-10-23 20:01:56 -0700 | [diff] [blame^] | 1 | /* Copyright (c) 2013-2014 The Linux Foundation. All rights reserved. |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <debug.h> |
| 30 | #include <stdlib.h> |
| 31 | #include <endian.h> |
| 32 | #include <string.h> |
| 33 | #include <utp.h> |
| 34 | |
| 35 | static int ucs_do_request_sense(struct ufs_dev *dev); |
| 36 | |
| 37 | int ucs_do_scsi_cmd(struct ufs_dev *dev, struct scsi_req_build_type *req) |
| 38 | { |
| 39 | struct upiu_req_build_type req_upiu; |
| 40 | struct upiu_basic_hdr resp_upiu; |
| 41 | int ret; |
| 42 | |
| 43 | memset(&req_upiu, 0 , sizeof(struct upiu_req_build_type)); |
| 44 | |
| 45 | req_upiu.cmd_set_type = UPIU_SCSI_CMD_SET; |
| 46 | req_upiu.trans_type = UPIU_TYPE_COMMAND; |
| 47 | req_upiu.data_buffer_addr = req->data_buffer_addr; |
| 48 | req_upiu.expected_data_len = req->data_len; |
| 49 | req_upiu.data_seg_len = 0; |
| 50 | req_upiu.ehs_len = 0; |
| 51 | req_upiu.flags = req->flags; |
| 52 | req_upiu.lun = req->lun; |
| 53 | req_upiu.query_mgmt_func = 0; |
| 54 | req_upiu.cdb = req->cdb; |
| 55 | req_upiu.cmd_type = UTRD_SCSCI_CMD; |
| 56 | req_upiu.dd = req->dd; |
| 57 | req_upiu.resp_ptr = &resp_upiu; |
| 58 | req_upiu.resp_len = sizeof(resp_upiu); |
| 59 | req_upiu.timeout_msecs = UTP_GENERIC_CMD_TIMEOUT; |
| 60 | |
| 61 | if (utp_enqueue_upiu(dev, &req_upiu)) |
| 62 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 63 | dprintf(CRITICAL, "ucs_do_scsi_cmd: enqueue failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 64 | return -UFS_FAILURE; |
| 65 | } |
| 66 | |
| 67 | if (resp_upiu.status != SCSI_STATUS_GOOD) |
| 68 | { |
| 69 | if (resp_upiu.status == SCSI_STATUS_CHK_COND && (*((uint8_t *)(req->cdb)) != SCSI_CMD_SENSE_REQ)) |
| 70 | { |
| 71 | ret = ucs_do_request_sense(dev); |
| 72 | if (ret) |
| 73 | dprintf(CRITICAL, "SCSI request sense failed.\n"); |
| 74 | } |
| 75 | |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 76 | dprintf(CRITICAL, "ucs_do_scsi_cmd failed status = %x\n", resp_upiu.status); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 77 | return -UFS_FAILURE; |
| 78 | } |
| 79 | |
| 80 | return UFS_SUCCESS; |
| 81 | } |
| 82 | |
Sridhar Parasuram | b48afc7 | 2014-10-23 20:01:56 -0700 | [diff] [blame^] | 83 | int ucs_do_scsi_rpmb_read(struct ufs_dev *dev, uint32_t *req_buf, uint32_t blk_cnt, |
| 84 | uint32_t *resp_buf, uint32_t *resp_len) |
| 85 | { |
| 86 | // validate input parameters |
| 87 | ASSERT(req_buf); |
| 88 | ASSERT(resp_buf); |
| 89 | ASSERT(resp_len); |
| 90 | |
| 91 | STACKBUF_DMA_ALIGN(cdb, sizeof(struct scsi_sec_protocol_cdb)); |
| 92 | struct scsi_req_build_type req_upiu; |
| 93 | struct scsi_sec_protocol_cdb *cdb_out_param, *cdb_in_param; |
| 94 | uint32_t blks_remaining; |
| 95 | uint32_t blks_to_transfer; |
| 96 | uint64_t bytes_to_transfer; |
| 97 | uint32_t start_blk; |
| 98 | uint64_t max_size; |
| 99 | blks_remaining = blk_cnt; |
| 100 | blks_to_transfer = blks_remaining; |
| 101 | bytes_to_transfer = blks_to_transfer * RPMB_FRAME_SIZE; |
| 102 | |
| 103 | // check if total bytes to transfer exceed max supported size |
| 104 | max_size = dev->rpmb_rw_size * RPMB_FRAME_SIZE * blk_cnt; |
| 105 | if (bytes_to_transfer > max_size) |
| 106 | { |
| 107 | dprintf(CRITICAL, "RPMB request transfer size %llu greater than max transfer size %llu\n", bytes_to_transfer, max_size); |
| 108 | return -UFS_FAILURE; |
| 109 | } |
| 110 | #ifdef DEBUG_UFS |
| 111 | dprintf(INFO, "rpmb_read: req_buf: 0x%x blk_count: 0x%x\n", *req_buf, blk_cnt); |
| 112 | dprintf(INFO, "rpmb_read: bytes_to_transfer: 0x%x blks_to_transfer: 0x%x\n", |
| 113 | bytes_to_transfer, blks_to_transfer); |
| 114 | #endif |
| 115 | // send the request |
| 116 | cdb_out_param = (struct scsi_sec_protocol_cdb*) cdb; |
| 117 | memset(cdb_out_param, 0, sizeof(struct scsi_sec_protocol_cdb)); |
| 118 | |
| 119 | cdb_out_param->opcode = SCSI_CMD_SECPROT_OUT; |
| 120 | cdb_out_param->cdb1 = SCSI_SEC_PROT; |
| 121 | cdb_out_param->sec_protocol_specific = BE16(SCSI_SEC_UFS_PROT_ID); |
| 122 | cdb_out_param->alloc_tlen = BE32(bytes_to_transfer); |
| 123 | |
| 124 | // Flush CDB to memory |
| 125 | dsb(); |
| 126 | arch_clean_invalidate_cache_range((addr_t) cdb_out_param, sizeof(struct scsi_sec_protocol_cdb)); |
| 127 | |
| 128 | memset(&req_upiu, 0, sizeof(struct scsi_req_build_type)); |
| 129 | |
| 130 | req_upiu.cdb = (addr_t) cdb_out_param; |
| 131 | req_upiu.data_buffer_addr = req_buf; |
| 132 | req_upiu.data_len = bytes_to_transfer; |
| 133 | req_upiu.flags = UPIU_FLAGS_WRITE; |
| 134 | req_upiu.lun = UFS_WLUN_RPMB; |
| 135 | req_upiu.dd = UTRD_TARGET_TO_SYSTEM; |
| 136 | |
| 137 | #ifdef DEBUG_UFS |
| 138 | dprintf(INFO, "Sending RPMB Read request\n"); |
| 139 | #endif |
| 140 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 141 | { |
| 142 | dprintf(CRITICAL, "%s:%d ucs_do_scsi_rpmb_read: failed\n", __func__, __LINE__); |
| 143 | return -UFS_FAILURE; |
| 144 | } |
| 145 | #ifdef DEBUG_UFS |
| 146 | dprintf(INFO, "Sending RPMB Read request complete\n"); |
| 147 | #endif |
| 148 | // read the response |
| 149 | cdb_in_param = (struct scsi_sec_protocol_cdb*) cdb; |
| 150 | memset(cdb_in_param, 0, sizeof(struct scsi_sec_protocol_cdb)); |
| 151 | |
| 152 | cdb_in_param->opcode = SCSI_CMD_SECPROT_IN; |
| 153 | cdb_in_param->cdb1 = SCSI_SEC_PROT; |
| 154 | cdb_in_param->sec_protocol_specific = BE16(SCSI_SEC_UFS_PROT_ID); |
| 155 | cdb_in_param->alloc_tlen = BE32(bytes_to_transfer); |
| 156 | |
| 157 | // Flush CDB to memory |
| 158 | dsb(); |
| 159 | arch_clean_invalidate_cache_range((addr_t) cdb_in_param, sizeof(struct scsi_sec_protocol_cdb)); |
| 160 | |
| 161 | memset(&req_upiu, 0, sizeof(struct scsi_req_build_type)); |
| 162 | |
| 163 | req_upiu.cdb = (addr_t) cdb_in_param; |
| 164 | req_upiu.data_buffer_addr = resp_buf; |
| 165 | req_upiu.data_len = bytes_to_transfer; |
| 166 | req_upiu.flags = UPIU_FLAGS_READ; |
| 167 | req_upiu.lun = UFS_WLUN_RPMB; |
| 168 | req_upiu.dd = UTRD_SYSTEM_TO_TARGET; |
| 169 | |
| 170 | #ifdef DEBUG_UFS |
| 171 | dprintf(INFO, "Sending RPMB Read response\n"); |
| 172 | #endif |
| 173 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 174 | { |
| 175 | dprintf(CRITICAL, "%s:%d ucs_do_scsi_rpmb_read: failed\n", __func__, __LINE__); |
| 176 | return -UFS_FAILURE; |
| 177 | } |
| 178 | #ifdef DEBUG_UFS |
| 179 | dprintf(SPEW, "Sending RPMB Read response complete\n"); |
| 180 | #endif |
| 181 | *resp_len = bytes_to_transfer; |
| 182 | return UFS_SUCCESS; |
| 183 | } |
| 184 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 185 | int ucs_do_scsi_read(struct ufs_dev *dev, struct scsi_rdwr_req *req) |
| 186 | { |
| 187 | STACKBUF_DMA_ALIGN(cdb, sizeof(struct scsi_rdwr_cdb)); |
| 188 | struct scsi_req_build_type req_upiu; |
| 189 | struct scsi_rdwr_cdb *cdb_param; |
| 190 | uint32_t blks_remaining; |
| 191 | uint16_t blks_to_transfer; |
| 192 | uint64_t bytes_to_transfer; |
| 193 | uint32_t start_blk; |
| 194 | uint32_t buf; |
| 195 | |
| 196 | blks_remaining = req->num_blocks; |
| 197 | buf = req->data_buffer_base; |
| 198 | start_blk = req->start_lba; |
| 199 | |
| 200 | cdb_param = (struct scsi_rdwr_cdb*) cdb; |
| 201 | while (blks_remaining) |
| 202 | { |
| 203 | if (blks_remaining <= SCSI_MAX_DATA_TRANS_BLK_LEN) |
| 204 | { |
| 205 | blks_to_transfer = blks_remaining; |
| 206 | blks_remaining = 0; |
| 207 | } |
| 208 | else |
| 209 | { |
| 210 | blks_to_transfer = SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 211 | blks_remaining -= SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 212 | } |
| 213 | |
| 214 | bytes_to_transfer = blks_to_transfer * UFS_DEFAULT_SECTORE_SIZE; |
| 215 | |
| 216 | memset(cdb_param, 0, sizeof(struct scsi_rdwr_cdb)); |
| 217 | cdb_param->opcode = SCSI_CMD_READ10; |
| 218 | cdb_param->cdb1 = SCSI_READ_WRITE_10_CDB1(0, 0, 1, 0); |
| 219 | cdb_param->lba = BE32(start_blk); |
| 220 | cdb_param->trans_len = BE16(blks_to_transfer); |
| 221 | |
| 222 | |
| 223 | dsb(); |
| 224 | arch_clean_invalidate_cache_range((addr_t) cdb_param, sizeof(struct scsi_rdwr_cdb)); |
| 225 | |
| 226 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 227 | |
| 228 | req_upiu.cdb = (addr_t) cdb_param; |
| 229 | req_upiu.data_buffer_addr = buf; |
| 230 | req_upiu.data_len = bytes_to_transfer; |
| 231 | req_upiu.flags = UPIU_FLAGS_READ; |
| 232 | req_upiu.lun = req->lun; |
| 233 | req_upiu.dd = UTRD_TARGET_TO_SYSTEM; |
| 234 | |
| 235 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 236 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 237 | dprintf(CRITICAL, "ucs_do_scsi_read: failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 238 | return -UFS_FAILURE; |
| 239 | } |
| 240 | |
| 241 | buf += bytes_to_transfer; |
| 242 | start_blk += SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 243 | } |
| 244 | |
| 245 | return UFS_SUCCESS; |
| 246 | } |
| 247 | |
| 248 | int ucs_do_scsi_write(struct ufs_dev *dev, struct scsi_rdwr_req *req) |
| 249 | { |
| 250 | struct scsi_req_build_type req_upiu; |
| 251 | STACKBUF_DMA_ALIGN(cdb, sizeof(struct scsi_rdwr_cdb)); |
| 252 | struct scsi_rdwr_cdb *cdb_param; |
| 253 | uint32_t blks_remaining; |
| 254 | uint16_t blks_to_transfer; |
| 255 | uint64_t bytes_to_transfer; |
| 256 | uint32_t start_blk; |
| 257 | uint32_t buf; |
| 258 | |
| 259 | blks_remaining = req->num_blocks; |
| 260 | buf = req->data_buffer_base; |
| 261 | start_blk = req->start_lba; |
| 262 | |
| 263 | cdb_param = (struct scsi_rdwr_cdb*) cdb; |
| 264 | while (blks_remaining) |
| 265 | { |
| 266 | if (blks_remaining <= SCSI_MAX_DATA_TRANS_BLK_LEN) |
| 267 | { |
| 268 | blks_to_transfer = blks_remaining; |
| 269 | blks_remaining = 0; |
| 270 | } |
| 271 | else |
| 272 | { |
| 273 | blks_to_transfer = SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 274 | blks_remaining -= SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 275 | } |
| 276 | |
| 277 | bytes_to_transfer = blks_to_transfer * UFS_DEFAULT_SECTORE_SIZE; |
| 278 | |
| 279 | memset(cdb_param, 0, sizeof(struct scsi_rdwr_cdb)); |
| 280 | cdb_param->opcode = SCSI_CMD_WRITE10; |
| 281 | cdb_param->cdb1 = SCSI_READ_WRITE_10_CDB1(0, 0, 1, 0); |
| 282 | cdb_param->lba = BE32(start_blk); |
| 283 | cdb_param->trans_len = BE16(blks_to_transfer); |
| 284 | |
| 285 | /* Flush cdb to memory. */ |
| 286 | dsb(); |
| 287 | arch_clean_invalidate_cache_range((addr_t) cdb_param, sizeof(struct scsi_rdwr_cdb)); |
| 288 | |
| 289 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 290 | |
| 291 | req_upiu.cdb = (addr_t) cdb_param; |
| 292 | req_upiu.data_buffer_addr = buf; |
| 293 | req_upiu.data_len = bytes_to_transfer; |
| 294 | req_upiu.flags = UPIU_FLAGS_WRITE; |
| 295 | req_upiu.lun = req->lun; |
| 296 | req_upiu.dd = UTRD_SYSTEM_TO_TARGET; |
| 297 | |
| 298 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 299 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 300 | dprintf(CRITICAL, "ucs_do_scsi_write: failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 301 | return -UFS_FAILURE; |
| 302 | } |
| 303 | |
| 304 | buf += bytes_to_transfer; |
| 305 | start_blk += SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 306 | } |
| 307 | |
| 308 | return UFS_SUCCESS; |
| 309 | } |
| 310 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 311 | int ucs_do_scsi_unmap(struct ufs_dev *dev, struct scsi_unmap_req *req) |
| 312 | { |
| 313 | STACKBUF_DMA_ALIGN(cdb_param, SCSI_CDB_PARAM_LEN); |
| 314 | STACKBUF_DMA_ALIGN(param, sizeof(struct unmap_param_list)); |
| 315 | struct scsi_req_build_type req_upiu; |
| 316 | struct unmap_param_list *param_list; |
| 317 | struct unmap_blk_desc *blk_desc; |
| 318 | |
| 319 | param_list = (struct unmap_param_list *)param; |
| 320 | param_list->data_len = (sizeof(struct unmap_param_list) - 1) << 0x8; /* n-1 */ |
| 321 | |
| 322 | param_list->blk_desc_data_len = sizeof(struct unmap_blk_desc) << 0x8; |
| 323 | |
| 324 | |
| 325 | blk_desc = &(param_list->blk_desc); |
| 326 | |
| 327 | blk_desc->lba = BE64(req->start_lba); |
| 328 | blk_desc->num_blks = BE32(req->num_blocks); |
| 329 | |
| 330 | memset((void*)cdb_param, 0, SCSI_CDB_PARAM_LEN); |
| 331 | cdb_param[0] = SCSI_CMD_UNMAP; |
| 332 | cdb_param[1] = 0; /*ANCHOR = 0 for UFS*/ |
| 333 | cdb_param[6] = 0; /*Group No = 0*/ |
| 334 | cdb_param[7] = 0; /* Param list length is 1, we erase 1 contiguous blk*/ |
| 335 | cdb_param[8] = sizeof(struct unmap_param_list); |
| 336 | cdb_param[9] = 0; |
| 337 | |
| 338 | /* Flush cdb to memory. */ |
| 339 | dsb(); |
| 340 | arch_invalidate_cache_range((addr_t) cdb_param, SCSI_CDB_PARAM_LEN); |
| 341 | |
| 342 | memset((void*)&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 343 | |
| 344 | req_upiu.cdb = (addr_t) cdb_param; |
| 345 | req_upiu.data_buffer_addr = (addr_t) param; |
| 346 | req_upiu.data_len = sizeof(struct unmap_param_list); |
| 347 | req_upiu.flags = UPIU_FLAGS_WRITE; |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 348 | req_upiu.lun = req->lun; |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 349 | req_upiu.dd = UTRD_SYSTEM_TO_TARGET; |
| 350 | |
| 351 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 352 | { |
| 353 | dprintf(CRITICAL, "Failed to send SCSI unmap command \n"); |
| 354 | return -UFS_FAILURE; |
| 355 | } |
| 356 | |
| 357 | /* Flush buffer. */ |
| 358 | arch_invalidate_cache_range((addr_t) param, SCSI_INQUIRY_LEN); |
| 359 | |
| 360 | return UFS_SUCCESS; |
| 361 | } |
| 362 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 363 | int ucs_scsi_send_inquiry(struct ufs_dev *dev) |
| 364 | { |
| 365 | STACKBUF_DMA_ALIGN(cdb_param, SCSI_CDB_PARAM_LEN); |
| 366 | STACKBUF_DMA_ALIGN(param, SCSI_INQUIRY_LEN); |
| 367 | struct scsi_req_build_type req_upiu; |
| 368 | |
| 369 | memset(cdb_param, 0, SCSI_CDB_PARAM_LEN); |
| 370 | cdb_param[0] = SCSI_CMD_INQUIRY; |
| 371 | cdb_param[3] = sizeof(param)>> 8; |
| 372 | cdb_param[4] = sizeof(param); |
| 373 | |
| 374 | /* Flush cdb to memory. */ |
| 375 | dsb(); |
| 376 | arch_invalidate_cache_range((addr_t) cdb_param, SCSI_CDB_PARAM_LEN); |
| 377 | |
| 378 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 379 | |
| 380 | req_upiu.cdb = (addr_t) cdb_param; |
| 381 | req_upiu.data_buffer_addr = (addr_t) param; |
| 382 | req_upiu.data_len = SCSI_INQUIRY_LEN; |
| 383 | req_upiu.flags = UPIU_FLAGS_READ; |
| 384 | req_upiu.lun = 0; |
| 385 | req_upiu.dd = UTRD_TARGET_TO_SYSTEM; |
| 386 | |
| 387 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 388 | { |
| 389 | dprintf(CRITICAL, "Failed to send SCSI inquiry\n"); |
| 390 | return -UFS_FAILURE; |
| 391 | } |
| 392 | |
| 393 | /* Flush buffer. */ |
| 394 | arch_invalidate_cache_range((addr_t) param, SCSI_INQUIRY_LEN); |
| 395 | |
| 396 | return UFS_SUCCESS; |
| 397 | } |
| 398 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 399 | void dump_sense_buffer(uint8_t *buf, int buf_len) |
| 400 | { |
| 401 | int index=0; |
| 402 | |
| 403 | dprintf(CRITICAL,"----Sense buffer----\n"); |
| 404 | for(index=0; index < buf_len; index++) |
| 405 | dprintf(CRITICAL,"buf[%d] = %x\n",index, buf[index]); |
| 406 | |
| 407 | dprintf(CRITICAL,"----end of buffer---\n"); |
| 408 | } |
| 409 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 410 | static int ucs_do_request_sense(struct ufs_dev *dev) |
| 411 | { |
| 412 | STACKBUF_DMA_ALIGN(cdb, sizeof(struct scsi_sense_cdb)); |
| 413 | struct scsi_req_build_type req_upiu; |
| 414 | struct scsi_sense_cdb *cdb_param; |
| 415 | uint8_t buf[SCSI_SENSE_BUF_LEN]; |
| 416 | |
| 417 | cdb_param = cdb; |
| 418 | |
| 419 | memset(cdb, 0, sizeof(struct scsi_sense_cdb)); |
| 420 | |
| 421 | cdb_param->opcode = SCSI_CMD_SENSE_REQ; |
| 422 | cdb_param->alloc_len = SCSI_SENSE_BUF_LEN; |
| 423 | |
| 424 | /* Flush cdb to memory. */ |
| 425 | dsb(); |
| 426 | arch_invalidate_cache_range((addr_t) cdb_param, SCSI_CDB_PARAM_LEN); |
| 427 | |
| 428 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 429 | |
| 430 | req_upiu.cdb = (addr_t) cdb_param; |
| 431 | req_upiu.data_buffer_addr = (addr_t) buf; |
| 432 | req_upiu.data_len = SCSI_SENSE_BUF_LEN; |
| 433 | req_upiu.flags = UPIU_FLAGS_READ; |
| 434 | req_upiu.lun = 0; |
| 435 | req_upiu.dd = UTRD_TARGET_TO_SYSTEM; |
| 436 | |
| 437 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 438 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 439 | dprintf(CRITICAL, "ucs_do_request_sense: failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 440 | return -UFS_FAILURE; |
| 441 | } |
| 442 | |
| 443 | /* Flush buffer. */ |
| 444 | arch_invalidate_cache_range((addr_t) buf, SCSI_INQUIRY_LEN); |
| 445 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 446 | dump_sense_buffer(buf, SCSI_SENSE_BUF_LEN); |
| 447 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 448 | return UFS_SUCCESS; |
| 449 | } |