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> |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 41 | |
| 42 | int dme_send_linkstartup_req(struct ufs_dev *dev) |
| 43 | { |
| 44 | struct uic_cmd cmd; |
| 45 | |
| 46 | cmd.uiccmd = UICCMDR_DME_LINKSTARTUP; |
| 47 | cmd.num_args = UICCMD_NO_ARGS; |
| 48 | cmd.timeout_msecs = DME_LINK_START_TIMEOUT; |
| 49 | |
| 50 | if (uic_send_cmd(dev, &cmd) || cmd.gen_err_code == UICCMD_FAILURE) |
| 51 | goto dme_send_linkstartup_req_err; |
| 52 | |
| 53 | return UFS_SUCCESS; |
| 54 | |
| 55 | dme_send_linkstartup_req_err: |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 56 | dprintf(CRITICAL, "%s:%d DME_LINKSTARTUP command failed.\n",__func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 57 | return -UFS_FAILURE; |
| 58 | } |
| 59 | |
| 60 | int dme_get_req(struct ufs_dev *dev, struct dme_get_req_type *req) |
| 61 | { |
| 62 | struct uic_cmd cmd; |
| 63 | |
| 64 | cmd.uiccmd = UICCMDR_DME_GET; |
| 65 | cmd.num_args = UICCMD_ONE_ARGS; |
| 66 | cmd.uiccmdarg1 = req->attribute << 16 | req->index; |
| 67 | cmd.timeout_msecs = INFINITE_TIME; |
| 68 | |
| 69 | if (uic_send_cmd(dev, &cmd) || cmd.gen_err_code == UICCMD_FAILURE) |
| 70 | goto dme_get_req_err; |
| 71 | |
| 72 | /* Return the result. */ |
| 73 | *(req->mibval) = cmd.uiccmdarg3; |
| 74 | |
| 75 | return UFS_SUCCESS; |
| 76 | |
| 77 | dme_get_req_err: |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 78 | dprintf(CRITICAL, "%s:%d DME_GET command failed.\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 79 | return -UFS_FAILURE; |
| 80 | } |
| 81 | |
| 82 | static int dme_get_query_resp(struct ufs_dev *dev, |
| 83 | struct upiu_req_build_type *req_upiu, |
| 84 | addr_t buffer, |
| 85 | size_t buf_len) |
| 86 | { |
| 87 | struct upiu_trans_mgmt_query_hdr *resp_upiu; |
| 88 | |
| 89 | resp_upiu = (struct upiu_trans_mgmt_query_hdr *) req_upiu->resp_ptr; |
| 90 | |
| 91 | if (resp_upiu->opcode != req_upiu->opcode) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 92 | { |
| 93 | 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] | 94 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 95 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 96 | if (resp_upiu->basic_hdr.response != UPIU_QUERY_RESP_SUCCESS) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 97 | { |
| 98 | dprintf(CRITICAL, "%s:%d UPIU Response is not SUCCESS\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 99 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 100 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 101 | |
| 102 | switch (resp_upiu->opcode) |
| 103 | { |
Sridhar Parasuram | 5351efc | 2015-02-06 16:41:35 -0800 | [diff] [blame^] | 104 | case UPIU_QUERY_OP_READ_ATTRIBUTE: |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 105 | case UPIU_QUERY_OP_READ_FLAG: |
| 106 | case UPIU_QUERY_OP_SET_FLAG: |
| 107 | if (buf_len < sizeof(uint32_t)) |
| 108 | { |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 109 | dprintf(CRITICAL, "%s:%d Insufficient buffer space.\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 110 | return -UFS_FAILURE; |
| 111 | } |
| 112 | |
| 113 | *((uint32_t *) buffer) = resp_upiu->flag_value; |
| 114 | break; |
| 115 | case UPIU_QUERY_OP_TOGGLE_FLAG: |
| 116 | case UPIU_QUERY_OP_CLEAR_FLAG: |
| 117 | case UPIU_QUERY_OP_READ_DESCRIPTOR: |
| 118 | break; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 119 | default: |
| 120 | dprintf(CRITICAL, "%s:%d UPIU query opcode not supported.\n", __func__, __LINE__); |
| 121 | return -UFS_FAILURE; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | return UFS_SUCCESS; |
| 125 | } |
| 126 | |
| 127 | static int dme_send_query_upiu(struct ufs_dev *dev, struct utp_query_req_upiu_type *query) |
| 128 | { |
| 129 | struct upiu_trans_mgmt_query_hdr resp_upiu; |
| 130 | struct upiu_req_build_type req_upiu; |
| 131 | int ret; |
| 132 | |
| 133 | memset(&req_upiu, 0, sizeof(req_upiu)); |
| 134 | |
| 135 | req_upiu.opcode = query->opcode; |
| 136 | req_upiu.selector = query->selector; |
| 137 | req_upiu.index = query->index; |
| 138 | req_upiu.idn = query->idn; |
| 139 | req_upiu.trans_type = UPIU_TYPE_QUERY_REQ; |
| 140 | req_upiu.dd = UTRD_NO_DATA_TRANSFER; |
| 141 | req_upiu.resp_ptr = (struct upiu_basic_hdr *) &resp_upiu; |
| 142 | req_upiu.resp_len = sizeof(resp_upiu); |
| 143 | req_upiu.resp_data_ptr = query->buf; |
| 144 | req_upiu.timeout_msecs = UTP_GENERIC_CMD_TIMEOUT; |
| 145 | |
| 146 | if (query->opcode == UPIU_QUERY_OP_READ_DESCRIPTOR) |
| 147 | { |
| 148 | req_upiu.resp_data_len = query->buf_len; |
| 149 | } |
| 150 | |
| 151 | ret = utp_enqueue_upiu(dev, &req_upiu); |
| 152 | if (ret) |
| 153 | goto utp_send_query_upiu_err; |
| 154 | |
| 155 | ret = dme_get_query_resp(dev, &req_upiu, query->buf, query->buf_len); |
| 156 | if (ret) |
| 157 | goto utp_send_query_upiu_err; |
| 158 | |
| 159 | utp_send_query_upiu_err: |
| 160 | return ret; |
| 161 | } |
| 162 | |
Sridhar Parasuram | 5351efc | 2015-02-06 16:41:35 -0800 | [diff] [blame^] | 163 | int dme_set_fpurgeenable(struct ufs_dev *dev) |
| 164 | { |
| 165 | STACKBUF_DMA_ALIGN(result, sizeof(uint32_t)); |
| 166 | STACKBUF_DMA_ALIGN(status, sizeof(uint32_t)); |
| 167 | uint32_t try_again = DME_BPURGESTATUS_RETRIES; |
| 168 | struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG, |
| 169 | UFS_IDX_fPurgeEn, |
| 170 | 0, |
| 171 | 0, |
| 172 | (addr_t) result, |
| 173 | sizeof(uint32_t)}; |
| 174 | struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_ATTRIBUTE, |
| 175 | UFS_IDX_bPurgeStatus, |
| 176 | 0, |
| 177 | 0, |
| 178 | (addr_t)status, |
| 179 | sizeof(uint32_t)}; |
| 180 | |
| 181 | if (dme_send_query_upiu(dev, &set_query)) |
| 182 | { |
| 183 | dprintf(CRITICAL, "%s:%d DME Purge Enable failed\n", __func__, __LINE__); |
| 184 | return -UFS_FAILURE; |
| 185 | } |
| 186 | |
| 187 | arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t)); |
| 188 | dprintf(INFO, "%s:%d Purge enable status: %u\n", __func__,__LINE__, *result); |
| 189 | |
| 190 | do { |
| 191 | *status = 0; |
| 192 | arch_invalidate_cache_range((addr_t) status, sizeof(uint32_t)); |
| 193 | if (dme_send_query_upiu(dev, &read_query)) |
| 194 | { |
| 195 | dprintf(CRITICAL, "%s:%d DME Purge Status Read failed\n", __func__, __LINE__); |
| 196 | return -UFS_FAILURE; |
| 197 | } |
| 198 | |
| 199 | switch (*status) |
| 200 | { |
| 201 | |
| 202 | case 0x0: |
| 203 | #ifdef DEBUG_UFS |
| 204 | dprintf(INFO, "%s:%d Purge operation returning to ufs_erase. Purge Status 0x0\n", __func__, __LINE__); |
| 205 | #endif |
| 206 | return UFS_SUCCESS; |
| 207 | case 0x3: |
| 208 | #ifdef DEBUG_UFS |
| 209 | dprintf(INFO, "%s:%d Purge operation has completed. Purge Status:0x3\n", __func__, __LINE__); |
| 210 | #endif |
| 211 | // next read of status will move to 0 |
| 212 | continue; |
| 213 | case 0x1: |
| 214 | #ifdef DEBUG_UFS |
| 215 | dprintf(INFO, "%s:%d Purge operation is still in progress.. Retrying\n", __func__, __LINE__); |
| 216 | #endif |
| 217 | try_again--; |
| 218 | continue; |
| 219 | case 0x2: |
| 220 | dprintf(CRITICAL, "%s:%d Purge operation stopped prematurely\n", __func__, __LINE__); |
| 221 | return -UFS_FAILURE; |
| 222 | case 0x4: |
| 223 | dprintf(CRITICAL, "%s:%d Purge operation failed due to logical unit queue not empty\n", __func__, __LINE__); |
| 224 | return -UFS_FAILURE; |
| 225 | case 0x5: |
| 226 | dprintf(CRITICAL, "%s:%d Purge operation general failure\n", __func__, __LINE__); |
| 227 | return -UFS_FAILURE; |
| 228 | } |
| 229 | } while((*status == 0x1 || *status == 0x3) && try_again); |
| 230 | |
| 231 | // should not come here |
| 232 | dprintf(CRITICAL, "%s:%d Purge operation timed out after checking status %d times\n", __func__, __LINE__, DME_BPURGESTATUS_RETRIES); |
| 233 | return -UFS_FAILURE; |
| 234 | } |
| 235 | |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 236 | int dme_set_fpoweronwpen(struct ufs_dev *dev) |
| 237 | { |
| 238 | STACKBUF_DMA_ALIGN(result, sizeof(uint32_t)); |
| 239 | uint32_t try_again = DME_FPOWERONWPEN_RETRIES; |
| 240 | struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_FLAG, |
| 241 | UFS_IDX_fPowerOnWPEn, |
| 242 | 0, |
| 243 | 0, |
| 244 | (addr_t) result, |
| 245 | sizeof(uint32_t)}; |
| 246 | struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG, |
| 247 | UFS_IDX_fPowerOnWPEn, |
| 248 | 0, |
| 249 | 0, |
| 250 | (addr_t) result, |
| 251 | sizeof(uint32_t)}; |
| 252 | |
| 253 | |
| 254 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 255 | { |
| 256 | 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] | 257 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 258 | } |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 259 | |
| 260 | arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t)); |
| 261 | |
| 262 | if (*result == 1) |
| 263 | goto utp_set_fpoweronwpen_done; |
| 264 | |
| 265 | do |
| 266 | { |
| 267 | try_again--; |
| 268 | dprintf(CRITICAL, "Power on Write Protect request failed. Retrying again.\n"); |
| 269 | |
| 270 | if (dme_send_query_upiu(dev, &set_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 271 | { |
| 272 | 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] | 273 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 274 | } |
| 275 | |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 276 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 277 | { |
| 278 | 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] | 279 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 280 | } |
Sridhar Parasuram | 88bd9dd | 2014-09-23 15:15:05 -0700 | [diff] [blame] | 281 | |
| 282 | if (*result == 1) |
| 283 | break; |
| 284 | } while (try_again); |
| 285 | |
| 286 | utp_set_fpoweronwpen_done: |
| 287 | dprintf(INFO,"Power on Write Protect status: %u\n", *result); |
| 288 | return UFS_SUCCESS; |
| 289 | } |
| 290 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 291 | int dme_set_fdeviceinit(struct ufs_dev *dev) |
| 292 | { |
| 293 | STACKBUF_DMA_ALIGN(result, sizeof(uint32_t)); |
| 294 | uint32_t try_again = DME_FDEVICEINIT_RETRIES; |
| 295 | struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_FLAG, |
| 296 | UFS_IDX_fDeviceInit, |
| 297 | 0, |
| 298 | 0, |
| 299 | (addr_t) result, |
| 300 | sizeof(uint32_t)}; |
| 301 | struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG, |
| 302 | UFS_IDX_fDeviceInit, |
| 303 | 0, |
| 304 | 0, |
| 305 | (addr_t) result, |
| 306 | sizeof(uint32_t)}; |
| 307 | |
| 308 | |
| 309 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 310 | { |
| 311 | 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] | 312 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 313 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 314 | |
| 315 | arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t)); |
| 316 | |
| 317 | if (*result == 1) |
| 318 | goto utp_set_fdeviceinit_done; |
| 319 | |
| 320 | do |
| 321 | { |
| 322 | try_again--; |
| 323 | |
| 324 | if (dme_send_query_upiu(dev, &set_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 325 | { |
| 326 | 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] | 327 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 328 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 329 | |
| 330 | if (dme_send_query_upiu(dev, &read_query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 331 | { |
| 332 | 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] | 333 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 334 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 335 | |
| 336 | if (*result == 1) |
| 337 | break; |
| 338 | } while (try_again); |
| 339 | |
| 340 | utp_set_fdeviceinit_done: |
| 341 | return UFS_SUCCESS; |
| 342 | } |
| 343 | |
| 344 | int dme_read_string_desc(struct ufs_dev *dev, uint8_t index, struct ufs_string_desc *desc) |
| 345 | { |
| 346 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 347 | UFS_DESC_IDN_STRING, |
| 348 | index, |
| 349 | 0, |
| 350 | (addr_t) desc, |
| 351 | sizeof(struct ufs_string_desc)}; |
| 352 | |
| 353 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 354 | { |
| 355 | 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] | 356 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 357 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 358 | |
| 359 | if (desc->desc_len != 0) |
| 360 | return UFS_SUCCESS; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 361 | 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] | 362 | return -UFS_FAILURE; |
| 363 | } |
| 364 | |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 365 | static uint32_t dme_parse_serial_no(struct ufs_string_desc *desc) |
| 366 | { |
| 367 | uint32_t serial_no=0; |
| 368 | uint16_t *ptr; |
| 369 | int index=0,len=0; |
| 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 | |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 377 | ptr = (uint16_t *) desc->serial_num; |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 378 | len = (desc->desc_len-2)/2; |
| 379 | |
| 380 | for(index=0; index<len; index++) |
| 381 | { |
| 382 | serial_no += *ptr; |
| 383 | ptr++; |
| 384 | } |
| 385 | |
| 386 | return serial_no; |
| 387 | } |
| 388 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 389 | int dme_read_device_desc(struct ufs_dev *dev) |
| 390 | { |
| 391 | STACKBUF_DMA_ALIGN(dev_desc, sizeof(struct ufs_dev_desc)); |
| 392 | STACKBUF_DMA_ALIGN(desc, sizeof(struct ufs_string_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 393 | struct ufs_dev_desc *device_desc = (struct ufs_dev_desc *) dev_desc; |
| 394 | struct ufs_string_desc *str_desc = (struct ufs_string_desc *) desc; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 395 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 396 | UFS_DESC_IDN_DEVICE, |
| 397 | 0, |
| 398 | 0, |
| 399 | (addr_t) dev_desc, |
| 400 | sizeof(struct ufs_dev_desc)}; |
| 401 | |
| 402 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 403 | { |
| 404 | 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] | 405 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 406 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 407 | |
| 408 | /* Flush buffer. */ |
| 409 | arch_invalidate_cache_range((addr_t) device_desc, sizeof(struct ufs_dev_desc)); |
| 410 | |
| 411 | /* Store all relevant data */ |
| 412 | dev->num_lus = device_desc->num_lu; |
| 413 | |
| 414 | /* Get serial number for the device based on the string index. */ |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 415 | 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] | 416 | return -UFS_FAILURE; |
| 417 | |
| 418 | /* Flush buffer. */ |
| 419 | arch_invalidate_cache_range((addr_t) str_desc, sizeof(struct ufs_string_desc)); |
| 420 | |
Sundarajan Srinivasan | f7517cf | 2013-09-30 15:44:43 -0700 | [diff] [blame] | 421 | dev->serial_num = dme_parse_serial_no(str_desc); |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 422 | |
| 423 | return UFS_SUCCESS; |
| 424 | } |
| 425 | |
| 426 | |
| 427 | int dme_read_geo_desc(struct ufs_dev *dev) |
| 428 | { |
| 429 | struct ufs_geometry_desc *desc; |
| 430 | STACKBUF_DMA_ALIGN(geometry_desc, sizeof(struct ufs_geometry_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 431 | desc = (struct ufs_geometry_desc *) geometry_desc; |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 432 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 433 | UFS_DESC_IDN_GEOMETRY, |
| 434 | 0, |
| 435 | 0, |
| 436 | (addr_t) geometry_desc, |
| 437 | sizeof(struct ufs_geometry_desc)}; |
| 438 | |
| 439 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 440 | { |
| 441 | 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] | 442 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 443 | } |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 444 | |
| 445 | // Flush buffer. |
| 446 | arch_invalidate_cache_range((addr_t) desc, sizeof(struct ufs_geometry_desc)); |
| 447 | dev->rpmb_rw_size = desc->rpmb_read_write_size; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 448 | return UFS_SUCCESS; |
| 449 | } |
| 450 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 451 | int dme_read_unit_desc(struct ufs_dev *dev, uint8_t index) |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 452 | { |
| 453 | STACKBUF_DMA_ALIGN(unit_desc, sizeof(struct ufs_unit_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 454 | struct ufs_unit_desc *desc = (struct ufs_unit_desc *) unit_desc; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 455 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 456 | UFS_DESC_IDN_UNIT, |
| 457 | index, |
| 458 | 0, |
| 459 | (addr_t) unit_desc, |
| 460 | sizeof(struct ufs_unit_desc)}; |
| 461 | |
| 462 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 463 | { |
| 464 | 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] | 465 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 466 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 467 | /* Flush buffer. */ |
| 468 | arch_invalidate_cache_range((addr_t) desc, sizeof(struct ufs_unit_desc)); |
| 469 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 470 | dev->lun_cfg[index].logical_blk_cnt = BE64(desc->logical_blk_cnt); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 471 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 472 | dev->lun_cfg[index].erase_blk_size = BE32(desc->erase_blk_size); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 473 | |
Sridhar Parasuram | 9374faa | 2014-10-23 19:56:12 -0700 | [diff] [blame] | 474 | // use only the lower 32 bits for rpmb partition size |
| 475 | if (index == UFS_WLUN_RPMB) |
| 476 | dev->rpmb_num_blocks = BE32(desc->logical_blk_cnt >> 32); |
| 477 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 478 | return UFS_SUCCESS; |
| 479 | } |
| 480 | |
| 481 | int dme_read_config_desc(struct ufs_dev *dev) |
| 482 | { |
| 483 | STACKBUF_DMA_ALIGN(desc, sizeof(struct ufs_config_desc)); |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 484 | struct ufs_config_desc *config_desc = (struct ufs_config_desc *)desc; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 485 | struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR, |
| 486 | UFS_DESC_IDN_CONFIGURATION, |
| 487 | 0, |
| 488 | 0, |
| 489 | (addr_t) config_desc, |
| 490 | sizeof(struct ufs_config_desc)}; |
| 491 | |
| 492 | if (dme_send_query_upiu(dev, &query)) |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 493 | { |
| 494 | 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] | 495 | return -UFS_FAILURE; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 496 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 497 | |
| 498 | /* Flush buffer. */ |
| 499 | arch_invalidate_cache_range((addr_t) config_desc, sizeof(struct ufs_config_desc)); |
| 500 | |
| 501 | return UFS_SUCCESS; |
| 502 | } |
| 503 | |
| 504 | int dme_send_nop_query(struct ufs_dev *dev) |
| 505 | { |
| 506 | struct upiu_req_build_type req_upiu; |
| 507 | struct upiu_basic_hdr resp_upiu; |
| 508 | int ret; |
| 509 | unsigned try_again; |
| 510 | |
| 511 | ret = UFS_SUCCESS; |
| 512 | try_again = DME_NOP_NUM_RETRIES; |
| 513 | |
| 514 | memset(&req_upiu, 0 , sizeof(struct upiu_req_build_type)); |
| 515 | |
| 516 | req_upiu.trans_type = UPIU_TYPE_NOP_OUT; |
| 517 | req_upiu.flags = 0; |
| 518 | req_upiu.query_mgmt_func = 0; |
| 519 | req_upiu.cmd_type = UTRD_DEV_MGMT_FUNC; |
| 520 | req_upiu.dd = UTRD_NO_DATA_TRANSFER; |
| 521 | req_upiu.resp_ptr = &resp_upiu; |
| 522 | req_upiu.resp_len = sizeof(struct upiu_basic_hdr); |
| 523 | req_upiu.timeout_msecs = DME_NOP_QUERY_TIMEOUT; |
| 524 | |
| 525 | while (try_again) |
| 526 | { |
| 527 | try_again--; |
| 528 | |
| 529 | ret = utp_enqueue_upiu(dev, &req_upiu); |
| 530 | |
| 531 | if (ret == -UFS_RETRY) |
| 532 | { |
| 533 | continue; |
| 534 | } |
| 535 | else if (ret == -UFS_FAILURE) |
| 536 | { |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 537 | dprintf(CRITICAL, "%s:%d Sending nop out failed.\n", __func__, __LINE__); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 538 | goto upiu_send_nop_out_err; |
| 539 | } |
| 540 | |
| 541 | /* Check response UPIU */ |
| 542 | if (resp_upiu.trans_type != UPIU_TYPE_NOP_IN) |
| 543 | { |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 544 | 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] | 545 | ret = -UFS_FAILURE; |
| 546 | goto upiu_send_nop_out_err; |
| 547 | } |
| 548 | else |
| 549 | break; |
| 550 | } |
| 551 | |
| 552 | upiu_send_nop_out_err: |
| 553 | return ret; |
| 554 | } |
| 555 | |
| 556 | int utp_build_query_req_upiu(struct upiu_trans_mgmt_query_hdr *req_upiu, |
| 557 | struct upiu_req_build_type *upiu_data) |
| 558 | { |
| 559 | req_upiu->opcode = upiu_data->opcode; |
| 560 | req_upiu->idn = upiu_data->idn; |
| 561 | req_upiu->index = upiu_data->index; |
| 562 | req_upiu->selector = upiu_data->selector; |
| 563 | req_upiu->resp_len = BE16(upiu_data->resp_data_len); |
| 564 | |
| 565 | switch (upiu_data->opcode) |
| 566 | { |
| 567 | case UPIU_QUERY_OP_READ_FLAG: |
Sridhar Parasuram | 5351efc | 2015-02-06 16:41:35 -0800 | [diff] [blame^] | 568 | case UPIU_QUERY_OP_READ_ATTRIBUTE: |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 569 | case UPIU_QUERY_OP_READ_DESCRIPTOR: |
| 570 | req_upiu->basic_hdr.query_task_mgmt_func = UPIU_QUERY_FUNC_STD_READ_REQ; |
| 571 | break; |
| 572 | case UPIU_QUERY_OP_TOGGLE_FLAG: |
| 573 | case UPIU_QUERY_OP_CLEAR_FLAG: |
| 574 | case UPIU_QUERY_OP_SET_FLAG: |
| 575 | req_upiu->basic_hdr.query_task_mgmt_func = UPIU_QUERY_FUNC_STD_WRITE_REQ; |
| 576 | break; |
Sridhar Parasuram | 56d09f3 | 2014-11-05 15:58:30 -0800 | [diff] [blame] | 577 | default: |
| 578 | dprintf(CRITICAL, "%s:%d UPIU query opcode not supported.\n", __func__, __LINE__); |
| 579 | return -UFS_FAILURE; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 580 | } |
| 581 | |
| 582 | return UFS_SUCCESS; |
| 583 | } |