Sridhar Parasuram | 5351efc | 2015-02-06 16:41:35 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2013-2015, 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 <string.h> |
| 31 | #include <reg.h> |
| 32 | #include <arch/defines.h> |
| 33 | #include <sys/types.h> |
| 34 | #include <stdlib.h> |
| 35 | #include <endian.h> |
| 36 | #include <ufs.h> |
| 37 | #include <dme.h> |
| 38 | #include <uic.h> |
| 39 | #include <utp.h> |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 40 | #include <ucs.h> |
Channagoud Kadabi | 9fb0fce | 2015-04-22 11:17:36 -0700 | [diff] [blame^] | 41 | #include <crc32.h> |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 42 | |
| 43 | int dme_send_linkstartup_req(struct ufs_dev *dev) |
| 44 | { |
| 45 | struct uic_cmd cmd; |
| 46 | |
| 47 | cmd.uiccmd = UICCMDR_DME_LINKSTARTUP; |
| 48 | cmd.num_args = UICCMD_NO_ARGS; |
| 49 | cmd.timeout_msecs = DME_LINK_START_TIMEOUT; |
| 50 | |
| 51 | if (uic_send_cmd(dev, &cmd) || cmd.gen_err_code == UICCMD_FAILURE) |
| 52 | goto dme_send_linkstartup_req_err; |
| 53 | |
| 54 | return UFS_SUCCESS; |
| 55 | |
| 56 | dme_send_linkstartup_req_err: |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 57 | dprintf(CRITICAL, "%s:%d DME_LINKSTARTUP command failed.\n",__func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 58 | return -UFS_FAILURE; |
| 59 | } |
| 60 | |
| 61 | int dme_get_req(struct ufs_dev *dev, struct dme_get_req_type *req) |
| 62 | { |
| 63 | struct uic_cmd cmd; |
| 64 | |
| 65 | cmd.uiccmd = UICCMDR_DME_GET; |
| 66 | cmd.num_args = UICCMD_ONE_ARGS; |
| 67 | cmd.uiccmdarg1 = req->attribute << 16 | req->index; |
| 68 | cmd.timeout_msecs = INFINITE_TIME; |
| 69 | |
| 70 | if (uic_send_cmd(dev, &cmd) || cmd.gen_err_code == UICCMD_FAILURE) |
| 71 | goto dme_get_req_err; |
| 72 | |
| 73 | /* Return the result. */ |
| 74 | *(req->mibval) = cmd.uiccmdarg3; |
| 75 | |
| 76 | return UFS_SUCCESS; |
| 77 | |
| 78 | dme_get_req_err: |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 79 | dprintf(CRITICAL, "%s:%d DME_GET command failed.\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 80 | return -UFS_FAILURE; |
| 81 | } |
| 82 | |
| 83 | static int dme_get_query_resp(struct ufs_dev *dev, |
| 84 | struct upiu_req_build_type *req_upiu, |
| 85 | addr_t buffer, |
| 86 | size_t buf_len) |
| 87 | { |
| 88 | struct upiu_trans_mgmt_query_hdr *resp_upiu; |
| 89 | |
| 90 | resp_upiu = (struct upiu_trans_mgmt_query_hdr *) req_upiu->resp_ptr; |
| 91 | |
| 92 | if (resp_upiu->opcode != req_upiu->opcode) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 93 | { |
| 94 | dprintf(CRITICAL, "%s:%d Opcode from respose does not match with Opcode from request\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 95 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 96 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 97 | if (resp_upiu->basic_hdr.response != UPIU_QUERY_RESP_SUCCESS) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 98 | { |
| 99 | dprintf(CRITICAL, "%s:%d UPIU Response is not SUCCESS\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 100 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 101 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 102 | |
| 103 | switch (resp_upiu->opcode) |
| 104 | { |
Sridhar Parasuram | 5351efc | 2015-02-06 16:41:35 -0800 | [diff] [blame] | 105 | case UPIU_QUERY_OP_READ_ATTRIBUTE: |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 106 | case UPIU_QUERY_OP_READ_FLAG: |
| 107 | case UPIU_QUERY_OP_SET_FLAG: |
| 108 | if (buf_len < sizeof(uint32_t)) |
| 109 | { |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 110 | dprintf(CRITICAL, "%s:%d Insufficient buffer space.\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 111 | return -UFS_FAILURE; |
| 112 | } |
| 113 | |
| 114 | *((uint32_t *) buffer) = resp_upiu->flag_value; |
| 115 | break; |
| 116 | case UPIU_QUERY_OP_TOGGLE_FLAG: |
| 117 | case UPIU_QUERY_OP_CLEAR_FLAG: |
| 118 | case UPIU_QUERY_OP_READ_DESCRIPTOR: |
| 119 | break; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 120 | default: |
| 121 | dprintf(CRITICAL, "%s:%d UPIU query opcode not supported.\n", __func__, __LINE__); |
| 122 | return -UFS_FAILURE; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | return UFS_SUCCESS; |
| 126 | } |
| 127 | |
| 128 | static int dme_send_query_upiu(struct ufs_dev *dev, struct utp_query_req_upiu_type *query) |
| 129 | { |
| 130 | struct upiu_trans_mgmt_query_hdr resp_upiu; |
| 131 | struct upiu_req_build_type req_upiu; |
| 132 | int ret; |
| 133 | |
| 134 | memset(&req_upiu, 0, sizeof(req_upiu)); |
| 135 | |
| 136 | req_upiu.opcode = query->opcode; |
| 137 | req_upiu.selector = query->selector; |
| 138 | req_upiu.index = query->index; |
| 139 | req_upiu.idn = query->idn; |
| 140 | req_upiu.trans_type = UPIU_TYPE_QUERY_REQ; |
| 141 | req_upiu.dd = UTRD_NO_DATA_TRANSFER; |
Sridhar Parasuram | 782645e | 2015-02-06 16:47:00 -0800 | [diff] [blame] | 142 | req_upiu.resp_ptr = (struct upiu_basic_resp_hdr *) &resp_upiu; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 143 | req_upiu.resp_len = sizeof(resp_upiu); |
| 144 | req_upiu.resp_data_ptr = query->buf; |
| 145 | req_upiu.timeout_msecs = UTP_GENERIC_CMD_TIMEOUT; |
| 146 | |
| 147 | if (query->opcode == UPIU_QUERY_OP_READ_DESCRIPTOR) |
| 148 | { |
| 149 | req_upiu.resp_data_len = query->buf_len; |
| 150 | } |
| 151 | |
| 152 | ret = utp_enqueue_upiu(dev, &req_upiu); |
| 153 | if (ret) |
| 154 | goto utp_send_query_upiu_err; |
| 155 | |
| 156 | ret = dme_get_query_resp(dev, &req_upiu, query->buf, query->buf_len); |
| 157 | if (ret) |
| 158 | goto utp_send_query_upiu_err; |
| 159 | |
| 160 | utp_send_query_upiu_err: |
| 161 | return ret; |
| 162 | } |
| 163 | |
Sridhar Parasuram | 5351efc | 2015-02-06 16:41:35 -0800 | [diff] [blame] | 164 | int dme_set_fpurgeenable(struct ufs_dev *dev) |
| 165 | { |
| 166 | STACKBUF_DMA_ALIGN(result, sizeof(uint32_t)); |
| 167 | STACKBUF_DMA_ALIGN(status, sizeof(uint32_t)); |
| 168 | uint32_t try_again = DME_BPURGESTATUS_RETRIES; |
| 169 | struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG, |
| 170 | UFS_IDX_fPurgeEn, |
| 171 | 0, |
| 172 | 0, |
| 173 | (addr_t) result, |
| 174 | sizeof(uint32_t)}; |
| 175 | struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_ATTRIBUTE, |
| 176 | UFS_IDX_bPurgeStatus, |
| 177 | 0, |
| 178 | 0, |
| 179 | (addr_t)status, |
| 180 | sizeof(uint32_t)}; |
| 181 | |
| 182 | if (dme_send_query_upiu(dev, &set_query)) |
| 183 | { |
| 184 | dprintf(CRITICAL, "%s:%d DME Purge Enable failed\n", __func__, __LINE__); |
| 185 | return -UFS_FAILURE; |
| 186 | } |
| 187 | |
| 188 | arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t)); |
| 189 | dprintf(INFO, "%s:%d Purge enable status: %u\n", __func__,__LINE__, *result); |
| 190 | |
| 191 | do { |
| 192 | *status = 0; |
| 193 | arch_invalidate_cache_range((addr_t) status, sizeof(uint32_t)); |
| 194 | if (dme_send_query_upiu(dev, &read_query)) |
| 195 | { |
| 196 | dprintf(CRITICAL, "%s:%d DME Purge Status Read failed\n", __func__, __LINE__); |
| 197 | return -UFS_FAILURE; |
| 198 | } |
| 199 | |
| 200 | switch (*status) |
| 201 | { |
| 202 | |
| 203 | case 0x0: |
| 204 | #ifdef DEBUG_UFS |
| 205 | dprintf(INFO, "%s:%d Purge operation returning to ufs_erase. Purge Status 0x0\n", __func__, __LINE__); |
| 206 | #endif |
| 207 | return UFS_SUCCESS; |
| 208 | case 0x3: |
| 209 | #ifdef DEBUG_UFS |
| 210 | dprintf(INFO, "%s:%d Purge operation has completed. Purge Status:0x3\n", __func__, __LINE__); |
| 211 | #endif |
| 212 | // next read of status will move to 0 |
| 213 | continue; |
| 214 | case 0x1: |
| 215 | #ifdef DEBUG_UFS |
| 216 | dprintf(INFO, "%s:%d Purge operation is still in progress.. Retrying\n", __func__, __LINE__); |
| 217 | #endif |
| 218 | try_again--; |
| 219 | continue; |
| 220 | case 0x2: |
| 221 | dprintf(CRITICAL, "%s:%d Purge operation stopped prematurely\n", __func__, __LINE__); |
| 222 | return -UFS_FAILURE; |
| 223 | case 0x4: |
| 224 | dprintf(CRITICAL, "%s:%d Purge operation failed due to logical unit queue not empty\n", __func__, __LINE__); |
| 225 | return -UFS_FAILURE; |
| 226 | case 0x5: |
| 227 | dprintf(CRITICAL, "%s:%d Purge operation general failure\n", __func__, __LINE__); |
| 228 | return -UFS_FAILURE; |
| 229 | } |
| 230 | } while((*status == 0x1 || *status == 0x3) && try_again); |
| 231 | |
| 232 | // should not come here |
| 233 | dprintf(CRITICAL, "%s:%d Purge operation timed out after checking status %d times\n", __func__, __LINE__, DME_BPURGESTATUS_RETRIES); |
| 234 | return -UFS_FAILURE; |
| 235 | } |
| 236 | |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 237 | int dme_set_fpoweronwpen(struct ufs_dev *dev) |
| 238 | { |
| 239 | STACKBUF_DMA_ALIGN(result, sizeof(uint32_t)); |
| 240 | uint32_t try_again = DME_FPOWERONWPEN_RETRIES; |
| 241 | struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_FLAG, |
| 242 | UFS_IDX_fPowerOnWPEn, |
| 243 | 0, |
| 244 | 0, |
| 245 | (addr_t) result, |
| 246 | sizeof(uint32_t)}; |
| 247 | struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG, |
| 248 | UFS_IDX_fPowerOnWPEn, |
| 249 | 0, |
| 250 | 0, |
| 251 | (addr_t) result, |
| 252 | sizeof(uint32_t)}; |
| 253 | |
| 254 | |
| 255 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 256 | { |
| 257 | dprintf(CRITICAL, "%s:%d DME Power On Write Read Request failed\n", __func__, __LINE__); |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 258 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 259 | } |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 260 | |
| 261 | arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t)); |
| 262 | |
| 263 | if (*result == 1) |
| 264 | goto utp_set_fpoweronwpen_done; |
| 265 | |
| 266 | do |
| 267 | { |
| 268 | try_again--; |
| 269 | dprintf(CRITICAL, "Power on Write Protect request failed. Retrying again.\n"); |
| 270 | |
| 271 | if (dme_send_query_upiu(dev, &set_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 272 | { |
| 273 | dprintf(CRITICAL, "%s:%d DME Power On Write Set Request failed\n", __func__, __LINE__); |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 274 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 275 | } |
| 276 | |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 277 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 278 | { |
| 279 | dprintf(CRITICAL, "%s:%d DME Power On Write Read Request failed\n", __func__, __LINE__); |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 280 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 281 | } |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 282 | |
| 283 | if (*result == 1) |
| 284 | break; |
| 285 | } while (try_again); |
| 286 | |
| 287 | utp_set_fpoweronwpen_done: |
| 288 | dprintf(INFO,"Power on Write Protect status: %u\n", *result); |
| 289 | return UFS_SUCCESS; |
| 290 | } |
| 291 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 292 | int dme_set_fdeviceinit(struct ufs_dev *dev) |
| 293 | { |
| 294 | STACKBUF_DMA_ALIGN(result, sizeof(uint32_t)); |
| 295 | uint32_t try_again = DME_FDEVICEINIT_RETRIES; |
| 296 | struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_FLAG, |
| 297 | UFS_IDX_fDeviceInit, |
| 298 | 0, |
| 299 | 0, |
| 300 | (addr_t) result, |
| 301 | sizeof(uint32_t)}; |
| 302 | struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG, |
| 303 | UFS_IDX_fDeviceInit, |
| 304 | 0, |
| 305 | 0, |
| 306 | (addr_t) result, |
| 307 | sizeof(uint32_t)}; |
| 308 | |
| 309 | |
| 310 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 311 | { |
| 312 | dprintf(CRITICAL, "%s:%d DME Device Init Read request failed\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 313 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 314 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 315 | |
| 316 | arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t)); |
| 317 | |
| 318 | if (*result == 1) |
| 319 | goto utp_set_fdeviceinit_done; |
| 320 | |
| 321 | do |
| 322 | { |
| 323 | try_again--; |
| 324 | |
| 325 | if (dme_send_query_upiu(dev, &set_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 326 | { |
| 327 | dprintf(CRITICAL, "%s:%d DME Device Init Set request failed\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 328 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 329 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 330 | |
| 331 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 332 | { |
| 333 | dprintf(CRITICAL, "%s:%d DME Device Init Read request failed\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 334 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 335 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 336 | |
| 337 | if (*result == 1) |
| 338 | break; |
| 339 | } while (try_again); |
| 340 | |
| 341 | utp_set_fdeviceinit_done: |
| 342 | return UFS_SUCCESS; |
| 343 | } |
| 344 | |
| 345 | int dme_read_string_desc(struct ufs_dev *dev, uint8_t index, struct ufs_string_desc *desc) |
| 346 | { |
| 347 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 348 | UFS_DESC_IDN_STRING, |
| 349 | index, |
| 350 | 0, |
| 351 | (addr_t) desc, |
| 352 | sizeof(struct ufs_string_desc)}; |
| 353 | |
| 354 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 355 | { |
| 356 | dprintf(CRITICAL, "%s:%d DME Read String Descriptor request failed\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 357 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 358 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 359 | |
| 360 | if (desc->desc_len != 0) |
| 361 | return UFS_SUCCESS; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 362 | dprintf(CRITICAL, "%s:%d DME Read String Descriptor is length 0\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 363 | return -UFS_FAILURE; |
| 364 | } |
| 365 | |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 366 | static uint32_t dme_parse_serial_no(struct ufs_string_desc *desc) |
| 367 | { |
| 368 | uint32_t serial_no=0; |
Channagoud Kadabi | 9fb0fce | 2015-04-22 11:17:36 -0700 | [diff] [blame^] | 369 | int len=0; |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 370 | |
| 371 | if(desc->desc_len <= 0) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 372 | { |
| 373 | dprintf(CRITICAL, "%s:%d Invalid string descriptor length\n", __func__, __LINE__); |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 374 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 375 | } |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 376 | |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 377 | len = (desc->desc_len-2)/2; |
| 378 | |
Channagoud Kadabi | 9fb0fce | 2015-04-22 11:17:36 -0700 | [diff] [blame^] | 379 | serial_no = crc32(~0L, desc->serial_num, len); |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 380 | |
| 381 | return serial_no; |
| 382 | } |
| 383 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 384 | int dme_read_device_desc(struct ufs_dev *dev) |
| 385 | { |
| 386 | STACKBUF_DMA_ALIGN(dev_desc, sizeof(struct ufs_dev_desc)); |
| 387 | STACKBUF_DMA_ALIGN(desc, sizeof(struct ufs_string_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 388 | struct ufs_dev_desc *device_desc = (struct ufs_dev_desc *) dev_desc; |
| 389 | struct ufs_string_desc *str_desc = (struct ufs_string_desc *) desc; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 390 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 391 | UFS_DESC_IDN_DEVICE, |
| 392 | 0, |
| 393 | 0, |
| 394 | (addr_t) dev_desc, |
| 395 | sizeof(struct ufs_dev_desc)}; |
| 396 | |
| 397 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 398 | { |
| 399 | dprintf(CRITICAL, "%s:%d DME Read Device Descriptor request failed\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 400 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 401 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 402 | |
| 403 | /* Flush buffer. */ |
| 404 | arch_invalidate_cache_range((addr_t) device_desc, sizeof(struct ufs_dev_desc)); |
| 405 | |
| 406 | /* Store all relevant data */ |
| 407 | dev->num_lus = device_desc->num_lu; |
| 408 | |
| 409 | /* Get serial number for the device based on the string index. */ |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 410 | if (dme_read_string_desc(dev, device_desc->serial_num, (struct ufs_string_desc *) desc)) |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 411 | return -UFS_FAILURE; |
| 412 | |
| 413 | /* Flush buffer. */ |
| 414 | arch_invalidate_cache_range((addr_t) str_desc, sizeof(struct ufs_string_desc)); |
| 415 | |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 416 | dev->serial_num = dme_parse_serial_no(str_desc); |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 417 | |
| 418 | return UFS_SUCCESS; |
| 419 | } |
| 420 | |
| 421 | |
| 422 | int dme_read_geo_desc(struct ufs_dev *dev) |
| 423 | { |
| 424 | struct ufs_geometry_desc *desc; |
| 425 | STACKBUF_DMA_ALIGN(geometry_desc, sizeof(struct ufs_geometry_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 426 | desc = (struct ufs_geometry_desc *) geometry_desc; |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 427 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 428 | UFS_DESC_IDN_GEOMETRY, |
| 429 | 0, |
| 430 | 0, |
| 431 | (addr_t) geometry_desc, |
| 432 | sizeof(struct ufs_geometry_desc)}; |
| 433 | |
| 434 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 435 | { |
| 436 | dprintf(CRITICAL, "%s:%d DME Read Geometry Descriptor request failed\n", __func__, __LINE__); |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 437 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 438 | } |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 439 | |
| 440 | // Flush buffer. |
| 441 | arch_invalidate_cache_range((addr_t) desc, sizeof(struct ufs_geometry_desc)); |
| 442 | dev->rpmb_rw_size = desc->rpmb_read_write_size; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 443 | return UFS_SUCCESS; |
| 444 | } |
| 445 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 446 | int dme_read_unit_desc(struct ufs_dev *dev, uint8_t index) |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 447 | { |
| 448 | STACKBUF_DMA_ALIGN(unit_desc, sizeof(struct ufs_unit_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 449 | struct ufs_unit_desc *desc = (struct ufs_unit_desc *) unit_desc; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 450 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 451 | UFS_DESC_IDN_UNIT, |
| 452 | index, |
| 453 | 0, |
| 454 | (addr_t) unit_desc, |
| 455 | sizeof(struct ufs_unit_desc)}; |
| 456 | |
| 457 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 458 | { |
| 459 | dprintf(CRITICAL, "%s:%d DME Read Unit Descriptor request failed\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 460 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 461 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 462 | /* Flush buffer. */ |
| 463 | arch_invalidate_cache_range((addr_t) desc, sizeof(struct ufs_unit_desc)); |
| 464 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 465 | dev->lun_cfg[index].logical_blk_cnt = BE64(desc->logical_blk_cnt); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 466 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 467 | dev->lun_cfg[index].erase_blk_size = BE32(desc->erase_blk_size); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 468 | |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 469 | // use only the lower 32 bits for rpmb partition size |
| 470 | if (index == UFS_WLUN_RPMB) |
| 471 | dev->rpmb_num_blocks = BE32(desc->logical_blk_cnt >> 32); |
| 472 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 473 | return UFS_SUCCESS; |
| 474 | } |
| 475 | |
| 476 | int dme_read_config_desc(struct ufs_dev *dev) |
| 477 | { |
| 478 | STACKBUF_DMA_ALIGN(desc, sizeof(struct ufs_config_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 479 | struct ufs_config_desc *config_desc = (struct ufs_config_desc *)desc; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 480 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 481 | UFS_DESC_IDN_CONFIGURATION, |
| 482 | 0, |
| 483 | 0, |
| 484 | (addr_t) config_desc, |
| 485 | sizeof(struct ufs_config_desc)}; |
| 486 | |
| 487 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 488 | { |
| 489 | dprintf(CRITICAL, "%s:%d DME Read Config Descriptor request failed\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 490 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 491 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 492 | |
| 493 | /* Flush buffer. */ |
| 494 | arch_invalidate_cache_range((addr_t) config_desc, sizeof(struct ufs_config_desc)); |
| 495 | |
| 496 | return UFS_SUCCESS; |
| 497 | } |
| 498 | |
| 499 | int dme_send_nop_query(struct ufs_dev *dev) |
| 500 | { |
| 501 | struct upiu_req_build_type req_upiu; |
Sridhar Parasuram | 782645e | 2015-02-06 16:47:00 -0800 | [diff] [blame] | 502 | struct upiu_basic_resp_hdr resp_upiu; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 503 | int ret; |
| 504 | unsigned try_again; |
| 505 | |
| 506 | ret = UFS_SUCCESS; |
| 507 | try_again = DME_NOP_NUM_RETRIES; |
| 508 | |
| 509 | memset(&req_upiu, 0 , sizeof(struct upiu_req_build_type)); |
| 510 | |
| 511 | req_upiu.trans_type = UPIU_TYPE_NOP_OUT; |
| 512 | req_upiu.flags = 0; |
| 513 | req_upiu.query_mgmt_func = 0; |
| 514 | req_upiu.cmd_type = UTRD_DEV_MGMT_FUNC; |
| 515 | req_upiu.dd = UTRD_NO_DATA_TRANSFER; |
| 516 | req_upiu.resp_ptr = &resp_upiu; |
| 517 | req_upiu.resp_len = sizeof(struct upiu_basic_hdr); |
| 518 | req_upiu.timeout_msecs = DME_NOP_QUERY_TIMEOUT; |
| 519 | |
| 520 | while (try_again) |
| 521 | { |
| 522 | try_again--; |
| 523 | |
| 524 | ret = utp_enqueue_upiu(dev, &req_upiu); |
| 525 | |
| 526 | if (ret == -UFS_RETRY) |
| 527 | { |
| 528 | continue; |
| 529 | } |
| 530 | else if (ret == -UFS_FAILURE) |
| 531 | { |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 532 | dprintf(CRITICAL, "%s:%d Sending nop out failed.\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 533 | goto upiu_send_nop_out_err; |
| 534 | } |
| 535 | |
| 536 | /* Check response UPIU */ |
| 537 | if (resp_upiu.trans_type != UPIU_TYPE_NOP_IN) |
| 538 | { |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 539 | dprintf(CRITICAL, "%s:%d Command failed. command = %x. Invalid response.\n",__func__,__LINE__, req_upiu.trans_type); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 540 | ret = -UFS_FAILURE; |
| 541 | goto upiu_send_nop_out_err; |
| 542 | } |
| 543 | else |
| 544 | break; |
| 545 | } |
| 546 | |
| 547 | upiu_send_nop_out_err: |
| 548 | return ret; |
| 549 | } |
| 550 | |
| 551 | int utp_build_query_req_upiu(struct upiu_trans_mgmt_query_hdr *req_upiu, |
| 552 | struct upiu_req_build_type *upiu_data) |
| 553 | { |
| 554 | req_upiu->opcode = upiu_data->opcode; |
| 555 | req_upiu->idn = upiu_data->idn; |
| 556 | req_upiu->index = upiu_data->index; |
| 557 | req_upiu->selector = upiu_data->selector; |
| 558 | req_upiu->resp_len = BE16(upiu_data->resp_data_len); |
| 559 | |
| 560 | switch (upiu_data->opcode) |
| 561 | { |
| 562 | case UPIU_QUERY_OP_READ_FLAG: |
Sridhar Parasuram | 5351efc | 2015-02-06 16:41:35 -0800 | [diff] [blame] | 563 | case UPIU_QUERY_OP_READ_ATTRIBUTE: |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 564 | case UPIU_QUERY_OP_READ_DESCRIPTOR: |
| 565 | req_upiu->basic_hdr.query_task_mgmt_func = UPIU_QUERY_FUNC_STD_READ_REQ; |
| 566 | break; |
| 567 | case UPIU_QUERY_OP_TOGGLE_FLAG: |
| 568 | case UPIU_QUERY_OP_CLEAR_FLAG: |
| 569 | case UPIU_QUERY_OP_SET_FLAG: |
| 570 | req_upiu->basic_hdr.query_task_mgmt_func = UPIU_QUERY_FUNC_STD_WRITE_REQ; |
| 571 | break; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 572 | default: |
| 573 | dprintf(CRITICAL, "%s:%d UPIU query opcode not supported.\n", __func__, __LINE__); |
| 574 | return -UFS_FAILURE; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 575 | } |
| 576 | |
| 577 | return UFS_SUCCESS; |
| 578 | } |