Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| 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 | |
| 83 | int ucs_do_scsi_read(struct ufs_dev *dev, struct scsi_rdwr_req *req) |
| 84 | { |
| 85 | STACKBUF_DMA_ALIGN(cdb, sizeof(struct scsi_rdwr_cdb)); |
| 86 | struct scsi_req_build_type req_upiu; |
| 87 | struct scsi_rdwr_cdb *cdb_param; |
| 88 | uint32_t blks_remaining; |
| 89 | uint16_t blks_to_transfer; |
| 90 | uint64_t bytes_to_transfer; |
| 91 | uint32_t start_blk; |
| 92 | uint32_t buf; |
| 93 | |
| 94 | blks_remaining = req->num_blocks; |
| 95 | buf = req->data_buffer_base; |
| 96 | start_blk = req->start_lba; |
| 97 | |
| 98 | cdb_param = (struct scsi_rdwr_cdb*) cdb; |
| 99 | while (blks_remaining) |
| 100 | { |
| 101 | if (blks_remaining <= SCSI_MAX_DATA_TRANS_BLK_LEN) |
| 102 | { |
| 103 | blks_to_transfer = blks_remaining; |
| 104 | blks_remaining = 0; |
| 105 | } |
| 106 | else |
| 107 | { |
| 108 | blks_to_transfer = SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 109 | blks_remaining -= SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 110 | } |
| 111 | |
| 112 | bytes_to_transfer = blks_to_transfer * UFS_DEFAULT_SECTORE_SIZE; |
| 113 | |
| 114 | memset(cdb_param, 0, sizeof(struct scsi_rdwr_cdb)); |
| 115 | cdb_param->opcode = SCSI_CMD_READ10; |
| 116 | cdb_param->cdb1 = SCSI_READ_WRITE_10_CDB1(0, 0, 1, 0); |
| 117 | cdb_param->lba = BE32(start_blk); |
| 118 | cdb_param->trans_len = BE16(blks_to_transfer); |
| 119 | |
| 120 | |
| 121 | dsb(); |
| 122 | arch_clean_invalidate_cache_range((addr_t) cdb_param, sizeof(struct scsi_rdwr_cdb)); |
| 123 | |
| 124 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 125 | |
| 126 | req_upiu.cdb = (addr_t) cdb_param; |
| 127 | req_upiu.data_buffer_addr = buf; |
| 128 | req_upiu.data_len = bytes_to_transfer; |
| 129 | req_upiu.flags = UPIU_FLAGS_READ; |
| 130 | req_upiu.lun = req->lun; |
| 131 | req_upiu.dd = UTRD_TARGET_TO_SYSTEM; |
| 132 | |
| 133 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 134 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame^] | 135 | dprintf(CRITICAL, "ucs_do_scsi_read: failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 136 | return -UFS_FAILURE; |
| 137 | } |
| 138 | |
| 139 | buf += bytes_to_transfer; |
| 140 | start_blk += SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 141 | } |
| 142 | |
| 143 | return UFS_SUCCESS; |
| 144 | } |
| 145 | |
| 146 | int ucs_do_scsi_write(struct ufs_dev *dev, struct scsi_rdwr_req *req) |
| 147 | { |
| 148 | struct scsi_req_build_type req_upiu; |
| 149 | STACKBUF_DMA_ALIGN(cdb, sizeof(struct scsi_rdwr_cdb)); |
| 150 | struct scsi_rdwr_cdb *cdb_param; |
| 151 | uint32_t blks_remaining; |
| 152 | uint16_t blks_to_transfer; |
| 153 | uint64_t bytes_to_transfer; |
| 154 | uint32_t start_blk; |
| 155 | uint32_t buf; |
| 156 | |
| 157 | blks_remaining = req->num_blocks; |
| 158 | buf = req->data_buffer_base; |
| 159 | start_blk = req->start_lba; |
| 160 | |
| 161 | cdb_param = (struct scsi_rdwr_cdb*) cdb; |
| 162 | while (blks_remaining) |
| 163 | { |
| 164 | if (blks_remaining <= SCSI_MAX_DATA_TRANS_BLK_LEN) |
| 165 | { |
| 166 | blks_to_transfer = blks_remaining; |
| 167 | blks_remaining = 0; |
| 168 | } |
| 169 | else |
| 170 | { |
| 171 | blks_to_transfer = SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 172 | blks_remaining -= SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 173 | } |
| 174 | |
| 175 | bytes_to_transfer = blks_to_transfer * UFS_DEFAULT_SECTORE_SIZE; |
| 176 | |
| 177 | memset(cdb_param, 0, sizeof(struct scsi_rdwr_cdb)); |
| 178 | cdb_param->opcode = SCSI_CMD_WRITE10; |
| 179 | cdb_param->cdb1 = SCSI_READ_WRITE_10_CDB1(0, 0, 1, 0); |
| 180 | cdb_param->lba = BE32(start_blk); |
| 181 | cdb_param->trans_len = BE16(blks_to_transfer); |
| 182 | |
| 183 | /* Flush cdb to memory. */ |
| 184 | dsb(); |
| 185 | arch_clean_invalidate_cache_range((addr_t) cdb_param, sizeof(struct scsi_rdwr_cdb)); |
| 186 | |
| 187 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 188 | |
| 189 | req_upiu.cdb = (addr_t) cdb_param; |
| 190 | req_upiu.data_buffer_addr = buf; |
| 191 | req_upiu.data_len = bytes_to_transfer; |
| 192 | req_upiu.flags = UPIU_FLAGS_WRITE; |
| 193 | req_upiu.lun = req->lun; |
| 194 | req_upiu.dd = UTRD_SYSTEM_TO_TARGET; |
| 195 | |
| 196 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 197 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame^] | 198 | dprintf(CRITICAL, "ucs_do_scsi_write: failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 199 | return -UFS_FAILURE; |
| 200 | } |
| 201 | |
| 202 | buf += bytes_to_transfer; |
| 203 | start_blk += SCSI_MAX_DATA_TRANS_BLK_LEN; |
| 204 | } |
| 205 | |
| 206 | return UFS_SUCCESS; |
| 207 | } |
| 208 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 209 | int ucs_do_scsi_unmap(struct ufs_dev *dev, struct scsi_unmap_req *req) |
| 210 | { |
| 211 | STACKBUF_DMA_ALIGN(cdb_param, SCSI_CDB_PARAM_LEN); |
| 212 | STACKBUF_DMA_ALIGN(param, sizeof(struct unmap_param_list)); |
| 213 | struct scsi_req_build_type req_upiu; |
| 214 | struct unmap_param_list *param_list; |
| 215 | struct unmap_blk_desc *blk_desc; |
| 216 | |
| 217 | param_list = (struct unmap_param_list *)param; |
| 218 | param_list->data_len = (sizeof(struct unmap_param_list) - 1) << 0x8; /* n-1 */ |
| 219 | |
| 220 | param_list->blk_desc_data_len = sizeof(struct unmap_blk_desc) << 0x8; |
| 221 | |
| 222 | |
| 223 | blk_desc = &(param_list->blk_desc); |
| 224 | |
| 225 | blk_desc->lba = BE64(req->start_lba); |
| 226 | blk_desc->num_blks = BE32(req->num_blocks); |
| 227 | |
| 228 | memset((void*)cdb_param, 0, SCSI_CDB_PARAM_LEN); |
| 229 | cdb_param[0] = SCSI_CMD_UNMAP; |
| 230 | cdb_param[1] = 0; /*ANCHOR = 0 for UFS*/ |
| 231 | cdb_param[6] = 0; /*Group No = 0*/ |
| 232 | cdb_param[7] = 0; /* Param list length is 1, we erase 1 contiguous blk*/ |
| 233 | cdb_param[8] = sizeof(struct unmap_param_list); |
| 234 | cdb_param[9] = 0; |
| 235 | |
| 236 | /* Flush cdb to memory. */ |
| 237 | dsb(); |
| 238 | arch_invalidate_cache_range((addr_t) cdb_param, SCSI_CDB_PARAM_LEN); |
| 239 | |
| 240 | memset((void*)&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 241 | |
| 242 | req_upiu.cdb = (addr_t) cdb_param; |
| 243 | req_upiu.data_buffer_addr = (addr_t) param; |
| 244 | req_upiu.data_len = sizeof(struct unmap_param_list); |
| 245 | req_upiu.flags = UPIU_FLAGS_WRITE; |
| 246 | req_upiu.lun = 0; |
| 247 | req_upiu.dd = UTRD_SYSTEM_TO_TARGET; |
| 248 | |
| 249 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 250 | { |
| 251 | dprintf(CRITICAL, "Failed to send SCSI unmap command \n"); |
| 252 | return -UFS_FAILURE; |
| 253 | } |
| 254 | |
| 255 | /* Flush buffer. */ |
| 256 | arch_invalidate_cache_range((addr_t) param, SCSI_INQUIRY_LEN); |
| 257 | |
| 258 | return UFS_SUCCESS; |
| 259 | } |
| 260 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 261 | int ucs_scsi_send_inquiry(struct ufs_dev *dev) |
| 262 | { |
| 263 | STACKBUF_DMA_ALIGN(cdb_param, SCSI_CDB_PARAM_LEN); |
| 264 | STACKBUF_DMA_ALIGN(param, SCSI_INQUIRY_LEN); |
| 265 | struct scsi_req_build_type req_upiu; |
| 266 | |
| 267 | memset(cdb_param, 0, SCSI_CDB_PARAM_LEN); |
| 268 | cdb_param[0] = SCSI_CMD_INQUIRY; |
| 269 | cdb_param[3] = sizeof(param)>> 8; |
| 270 | cdb_param[4] = sizeof(param); |
| 271 | |
| 272 | /* Flush cdb to memory. */ |
| 273 | dsb(); |
| 274 | arch_invalidate_cache_range((addr_t) cdb_param, SCSI_CDB_PARAM_LEN); |
| 275 | |
| 276 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 277 | |
| 278 | req_upiu.cdb = (addr_t) cdb_param; |
| 279 | req_upiu.data_buffer_addr = (addr_t) param; |
| 280 | req_upiu.data_len = SCSI_INQUIRY_LEN; |
| 281 | req_upiu.flags = UPIU_FLAGS_READ; |
| 282 | req_upiu.lun = 0; |
| 283 | req_upiu.dd = UTRD_TARGET_TO_SYSTEM; |
| 284 | |
| 285 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 286 | { |
| 287 | dprintf(CRITICAL, "Failed to send SCSI inquiry\n"); |
| 288 | return -UFS_FAILURE; |
| 289 | } |
| 290 | |
| 291 | /* Flush buffer. */ |
| 292 | arch_invalidate_cache_range((addr_t) param, SCSI_INQUIRY_LEN); |
| 293 | |
| 294 | return UFS_SUCCESS; |
| 295 | } |
| 296 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 297 | void dump_sense_buffer(uint8_t *buf, int buf_len) |
| 298 | { |
| 299 | int index=0; |
| 300 | |
| 301 | dprintf(CRITICAL,"----Sense buffer----\n"); |
| 302 | for(index=0; index < buf_len; index++) |
| 303 | dprintf(CRITICAL,"buf[%d] = %x\n",index, buf[index]); |
| 304 | |
| 305 | dprintf(CRITICAL,"----end of buffer---\n"); |
| 306 | } |
| 307 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 308 | static int ucs_do_request_sense(struct ufs_dev *dev) |
| 309 | { |
| 310 | STACKBUF_DMA_ALIGN(cdb, sizeof(struct scsi_sense_cdb)); |
| 311 | struct scsi_req_build_type req_upiu; |
| 312 | struct scsi_sense_cdb *cdb_param; |
| 313 | uint8_t buf[SCSI_SENSE_BUF_LEN]; |
| 314 | |
| 315 | cdb_param = cdb; |
| 316 | |
| 317 | memset(cdb, 0, sizeof(struct scsi_sense_cdb)); |
| 318 | |
| 319 | cdb_param->opcode = SCSI_CMD_SENSE_REQ; |
| 320 | cdb_param->alloc_len = SCSI_SENSE_BUF_LEN; |
| 321 | |
| 322 | /* Flush cdb to memory. */ |
| 323 | dsb(); |
| 324 | arch_invalidate_cache_range((addr_t) cdb_param, SCSI_CDB_PARAM_LEN); |
| 325 | |
| 326 | memset(&req_upiu, 0 , sizeof(struct scsi_req_build_type)); |
| 327 | |
| 328 | req_upiu.cdb = (addr_t) cdb_param; |
| 329 | req_upiu.data_buffer_addr = (addr_t) buf; |
| 330 | req_upiu.data_len = SCSI_SENSE_BUF_LEN; |
| 331 | req_upiu.flags = UPIU_FLAGS_READ; |
| 332 | req_upiu.lun = 0; |
| 333 | req_upiu.dd = UTRD_TARGET_TO_SYSTEM; |
| 334 | |
| 335 | if (ucs_do_scsi_cmd(dev, &req_upiu)) |
| 336 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame^] | 337 | dprintf(CRITICAL, "ucs_do_request_sense: failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 338 | return -UFS_FAILURE; |
| 339 | } |
| 340 | |
| 341 | /* Flush buffer. */ |
| 342 | arch_invalidate_cache_range((addr_t) buf, SCSI_INQUIRY_LEN); |
| 343 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 344 | dump_sense_buffer(buf, SCSI_SENSE_BUF_LEN); |
| 345 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 346 | return UFS_SUCCESS; |
| 347 | } |