Yue Ma | 0317e4a | 2018-01-10 11:48:32 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/delay.h> |
| 14 | #include <linux/jiffies.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/of.h> |
| 17 | #include <linux/of_device.h> |
| 18 | #include <linux/pm_wakeup.h> |
| 19 | #include <linux/rwsem.h> |
| 20 | #include <linux/suspend.h> |
| 21 | #include <linux/timer.h> |
| 22 | #include <soc/qcom/ramdump.h> |
| 23 | #include <soc/qcom/subsystem_notif.h> |
| 24 | |
| 25 | #include "main.h" |
| 26 | #include "debug.h" |
| 27 | #include "pci.h" |
| 28 | |
| 29 | #define CNSS_DUMP_FORMAT_VER 0x11 |
| 30 | #define CNSS_DUMP_FORMAT_VER_V2 0x22 |
| 31 | #define CNSS_DUMP_MAGIC_VER_V2 0x42445953 |
| 32 | #define CNSS_DUMP_NAME "CNSS_WLAN" |
| 33 | #define CNSS_DUMP_DESC_SIZE 0x1000 |
| 34 | #define CNSS_DUMP_SEG_VER 0x1 |
| 35 | #define WLAN_RECOVERY_DELAY 1000 |
| 36 | #define FILE_SYSTEM_READY 1 |
| 37 | #define FW_READY_TIMEOUT 20000 |
| 38 | #define FW_ASSERT_TIMEOUT 5000 |
| 39 | #define CNSS_EVENT_PENDING 2989 |
| 40 | #define WAKE_MSI_NAME "WAKE" |
| 41 | |
| 42 | static struct cnss_plat_data *plat_env; |
| 43 | |
| 44 | static DECLARE_RWSEM(cnss_pm_sem); |
| 45 | |
| 46 | static bool qmi_bypass; |
| 47 | #ifdef CONFIG_CNSS2_DEBUG |
| 48 | module_param(qmi_bypass, bool, 0600); |
| 49 | MODULE_PARM_DESC(qmi_bypass, "Bypass QMI from platform driver"); |
| 50 | #endif |
| 51 | |
| 52 | static bool enable_waltest; |
| 53 | #ifdef CONFIG_CNSS2_DEBUG |
| 54 | module_param(enable_waltest, bool, 0600); |
| 55 | MODULE_PARM_DESC(enable_waltest, "Enable to handle firmware waltest"); |
| 56 | #endif |
| 57 | |
| 58 | enum cnss_debug_quirks { |
| 59 | LINK_DOWN_SELF_RECOVERY, |
| 60 | SKIP_DEVICE_BOOT, |
| 61 | USE_CORE_ONLY_FW, |
| 62 | SKIP_RECOVERY, |
| 63 | }; |
| 64 | |
| 65 | unsigned long quirks; |
| 66 | #ifdef CONFIG_CNSS2_DEBUG |
| 67 | module_param(quirks, ulong, 0600); |
| 68 | MODULE_PARM_DESC(quirks, "Debug quirks for the driver"); |
| 69 | #endif |
| 70 | |
| 71 | static struct cnss_fw_files FW_FILES_QCA6174_FW_3_0 = { |
| 72 | "qwlan30.bin", "bdwlan30.bin", "otp30.bin", "utf30.bin", |
| 73 | "utfbd30.bin", "epping30.bin", "evicted30.bin" |
| 74 | }; |
| 75 | |
| 76 | static struct cnss_fw_files FW_FILES_DEFAULT = { |
| 77 | "qwlan.bin", "bdwlan.bin", "otp.bin", "utf.bin", |
| 78 | "utfbd.bin", "epping.bin", "evicted.bin" |
| 79 | }; |
| 80 | |
| 81 | struct cnss_driver_event { |
| 82 | struct list_head list; |
| 83 | enum cnss_driver_event_type type; |
| 84 | bool sync; |
| 85 | struct completion complete; |
| 86 | int ret; |
| 87 | void *data; |
| 88 | }; |
| 89 | |
| 90 | static enum cnss_dev_bus_type cnss_get_dev_bus_type(struct device *dev) |
| 91 | { |
| 92 | if (!dev) |
| 93 | return CNSS_BUS_NONE; |
| 94 | |
| 95 | if (!dev->bus) |
| 96 | return CNSS_BUS_NONE; |
| 97 | |
| 98 | if (memcmp(dev->bus->name, "pci", 3) == 0) |
| 99 | return CNSS_BUS_PCI; |
| 100 | else |
| 101 | return CNSS_BUS_NONE; |
| 102 | } |
| 103 | |
| 104 | static void cnss_set_plat_priv(struct platform_device *plat_dev, |
| 105 | struct cnss_plat_data *plat_priv) |
| 106 | { |
| 107 | plat_env = plat_priv; |
| 108 | } |
| 109 | |
| 110 | static struct cnss_plat_data *cnss_get_plat_priv(struct platform_device |
| 111 | *plat_dev) |
| 112 | { |
| 113 | return plat_env; |
| 114 | } |
| 115 | |
| 116 | void *cnss_bus_dev_to_bus_priv(struct device *dev) |
| 117 | { |
| 118 | if (!dev) |
| 119 | return NULL; |
| 120 | |
| 121 | switch (cnss_get_dev_bus_type(dev)) { |
| 122 | case CNSS_BUS_PCI: |
| 123 | return cnss_get_pci_priv(to_pci_dev(dev)); |
| 124 | default: |
| 125 | return NULL; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | struct cnss_plat_data *cnss_bus_dev_to_plat_priv(struct device *dev) |
| 130 | { |
| 131 | void *bus_priv; |
| 132 | |
| 133 | if (!dev) |
| 134 | return cnss_get_plat_priv(NULL); |
| 135 | |
| 136 | bus_priv = cnss_bus_dev_to_bus_priv(dev); |
| 137 | if (!bus_priv) |
| 138 | return NULL; |
| 139 | |
| 140 | switch (cnss_get_dev_bus_type(dev)) { |
| 141 | case CNSS_BUS_PCI: |
| 142 | return cnss_pci_priv_to_plat_priv(bus_priv); |
| 143 | default: |
| 144 | return NULL; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | static int cnss_pm_notify(struct notifier_block *b, |
| 149 | unsigned long event, void *p) |
| 150 | { |
| 151 | switch (event) { |
| 152 | case PM_SUSPEND_PREPARE: |
| 153 | down_write(&cnss_pm_sem); |
| 154 | break; |
| 155 | case PM_POST_SUSPEND: |
| 156 | up_write(&cnss_pm_sem); |
| 157 | break; |
| 158 | } |
| 159 | |
| 160 | return NOTIFY_DONE; |
| 161 | } |
| 162 | |
| 163 | static struct notifier_block cnss_pm_notifier = { |
| 164 | .notifier_call = cnss_pm_notify, |
| 165 | }; |
| 166 | |
| 167 | static void cnss_pm_stay_awake(struct cnss_plat_data *plat_priv) |
| 168 | { |
| 169 | if (atomic_inc_return(&plat_priv->pm_count) != 1) |
| 170 | return; |
| 171 | |
| 172 | cnss_pr_dbg("PM stay awake, state: 0x%lx, count: %d\n", |
| 173 | plat_priv->driver_state, |
| 174 | atomic_read(&plat_priv->pm_count)); |
| 175 | pm_stay_awake(&plat_priv->plat_dev->dev); |
| 176 | } |
| 177 | |
| 178 | static void cnss_pm_relax(struct cnss_plat_data *plat_priv) |
| 179 | { |
| 180 | int r = atomic_dec_return(&plat_priv->pm_count); |
| 181 | |
| 182 | WARN_ON(r < 0); |
| 183 | |
| 184 | if (r != 0) |
| 185 | return; |
| 186 | |
| 187 | cnss_pr_dbg("PM relax, state: 0x%lx, count: %d\n", |
| 188 | plat_priv->driver_state, |
| 189 | atomic_read(&plat_priv->pm_count)); |
| 190 | pm_relax(&plat_priv->plat_dev->dev); |
| 191 | } |
| 192 | |
| 193 | void cnss_lock_pm_sem(struct device *dev) |
| 194 | { |
| 195 | down_read(&cnss_pm_sem); |
| 196 | } |
| 197 | EXPORT_SYMBOL(cnss_lock_pm_sem); |
| 198 | |
| 199 | void cnss_release_pm_sem(struct device *dev) |
| 200 | { |
| 201 | up_read(&cnss_pm_sem); |
| 202 | } |
| 203 | EXPORT_SYMBOL(cnss_release_pm_sem); |
| 204 | |
| 205 | int cnss_get_fw_files_for_target(struct device *dev, |
| 206 | struct cnss_fw_files *pfw_files, |
| 207 | u32 target_type, u32 target_version) |
| 208 | { |
| 209 | if (!pfw_files) |
| 210 | return -ENODEV; |
| 211 | |
| 212 | switch (target_version) { |
| 213 | case QCA6174_REV3_VERSION: |
| 214 | case QCA6174_REV3_2_VERSION: |
| 215 | memcpy(pfw_files, &FW_FILES_QCA6174_FW_3_0, sizeof(*pfw_files)); |
| 216 | break; |
| 217 | default: |
| 218 | memcpy(pfw_files, &FW_FILES_DEFAULT, sizeof(*pfw_files)); |
| 219 | cnss_pr_err("Unknown target version, type: 0x%X, version: 0x%X", |
| 220 | target_type, target_version); |
| 221 | break; |
| 222 | } |
| 223 | |
| 224 | return 0; |
| 225 | } |
| 226 | EXPORT_SYMBOL(cnss_get_fw_files_for_target); |
| 227 | |
| 228 | int cnss_request_bus_bandwidth(struct device *dev, int bandwidth) |
| 229 | { |
| 230 | int ret = 0; |
| 231 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 232 | struct cnss_bus_bw_info *bus_bw_info; |
| 233 | |
| 234 | if (!plat_priv) |
| 235 | return -ENODEV; |
| 236 | |
| 237 | bus_bw_info = &plat_priv->bus_bw_info; |
| 238 | if (!bus_bw_info->bus_client) |
| 239 | return -EINVAL; |
| 240 | |
| 241 | switch (bandwidth) { |
| 242 | case CNSS_BUS_WIDTH_NONE: |
| 243 | case CNSS_BUS_WIDTH_LOW: |
| 244 | case CNSS_BUS_WIDTH_MEDIUM: |
| 245 | case CNSS_BUS_WIDTH_HIGH: |
| 246 | ret = msm_bus_scale_client_update_request( |
| 247 | bus_bw_info->bus_client, bandwidth); |
| 248 | if (!ret) |
| 249 | bus_bw_info->current_bw_vote = bandwidth; |
| 250 | else |
| 251 | cnss_pr_err("Could not set bus bandwidth: %d, err = %d\n", |
| 252 | bandwidth, ret); |
| 253 | break; |
| 254 | default: |
| 255 | cnss_pr_err("Invalid bus bandwidth: %d", bandwidth); |
| 256 | ret = -EINVAL; |
| 257 | } |
| 258 | |
| 259 | return ret; |
| 260 | } |
| 261 | EXPORT_SYMBOL(cnss_request_bus_bandwidth); |
| 262 | |
| 263 | int cnss_get_platform_cap(struct device *dev, struct cnss_platform_cap *cap) |
| 264 | { |
| 265 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 266 | |
| 267 | if (!plat_priv) |
| 268 | return -ENODEV; |
| 269 | |
| 270 | if (cap) |
| 271 | *cap = plat_priv->cap; |
| 272 | |
| 273 | return 0; |
| 274 | } |
| 275 | EXPORT_SYMBOL(cnss_get_platform_cap); |
| 276 | |
| 277 | int cnss_get_soc_info(struct device *dev, struct cnss_soc_info *info) |
| 278 | { |
| 279 | int ret = 0; |
| 280 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 281 | void *bus_priv = cnss_bus_dev_to_bus_priv(dev); |
| 282 | |
| 283 | if (!plat_priv) |
| 284 | return -ENODEV; |
| 285 | |
| 286 | ret = cnss_pci_get_bar_info(bus_priv, &info->va, &info->pa); |
| 287 | if (ret) |
| 288 | return ret; |
| 289 | |
| 290 | return 0; |
| 291 | } |
| 292 | EXPORT_SYMBOL(cnss_get_soc_info); |
| 293 | |
| 294 | void cnss_request_pm_qos(struct device *dev, u32 qos_val) |
| 295 | { |
| 296 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 297 | |
| 298 | if (!plat_priv) |
| 299 | return; |
| 300 | |
| 301 | pm_qos_add_request(&plat_priv->qos_request, PM_QOS_CPU_DMA_LATENCY, |
| 302 | qos_val); |
| 303 | } |
| 304 | EXPORT_SYMBOL(cnss_request_pm_qos); |
| 305 | |
| 306 | void cnss_remove_pm_qos(struct device *dev) |
| 307 | { |
| 308 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 309 | |
| 310 | if (!plat_priv) |
| 311 | return; |
| 312 | |
| 313 | pm_qos_remove_request(&plat_priv->qos_request); |
| 314 | } |
| 315 | EXPORT_SYMBOL(cnss_remove_pm_qos); |
| 316 | |
| 317 | int cnss_wlan_enable(struct device *dev, |
| 318 | struct cnss_wlan_enable_cfg *config, |
| 319 | enum cnss_driver_mode mode, |
| 320 | const char *host_version) |
| 321 | { |
| 322 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 323 | struct wlfw_wlan_cfg_req_msg_v01 req; |
| 324 | u32 i; |
| 325 | int ret = 0; |
| 326 | |
| 327 | if (plat_priv->device_id == QCA6174_DEVICE_ID) |
| 328 | return 0; |
| 329 | |
| 330 | if (qmi_bypass) |
| 331 | return 0; |
| 332 | |
| 333 | if (!config || !host_version) { |
| 334 | cnss_pr_err("Invalid config or host_version pointer\n"); |
| 335 | return -EINVAL; |
| 336 | } |
| 337 | |
| 338 | cnss_pr_dbg("Mode: %d, config: %pK, host_version: %s\n", |
| 339 | mode, config, host_version); |
| 340 | |
| 341 | if (mode == CNSS_WALTEST || mode == CNSS_CCPM) |
| 342 | goto skip_cfg; |
| 343 | |
| 344 | memset(&req, 0, sizeof(req)); |
| 345 | |
| 346 | req.host_version_valid = 1; |
| 347 | strlcpy(req.host_version, host_version, |
| 348 | QMI_WLFW_MAX_STR_LEN_V01 + 1); |
| 349 | |
| 350 | req.tgt_cfg_valid = 1; |
| 351 | if (config->num_ce_tgt_cfg > QMI_WLFW_MAX_NUM_CE_V01) |
| 352 | req.tgt_cfg_len = QMI_WLFW_MAX_NUM_CE_V01; |
| 353 | else |
| 354 | req.tgt_cfg_len = config->num_ce_tgt_cfg; |
| 355 | for (i = 0; i < req.tgt_cfg_len; i++) { |
| 356 | req.tgt_cfg[i].pipe_num = config->ce_tgt_cfg[i].pipe_num; |
| 357 | req.tgt_cfg[i].pipe_dir = config->ce_tgt_cfg[i].pipe_dir; |
| 358 | req.tgt_cfg[i].nentries = config->ce_tgt_cfg[i].nentries; |
| 359 | req.tgt_cfg[i].nbytes_max = config->ce_tgt_cfg[i].nbytes_max; |
| 360 | req.tgt_cfg[i].flags = config->ce_tgt_cfg[i].flags; |
| 361 | } |
| 362 | |
| 363 | req.svc_cfg_valid = 1; |
| 364 | if (config->num_ce_svc_pipe_cfg > QMI_WLFW_MAX_NUM_SVC_V01) |
| 365 | req.svc_cfg_len = QMI_WLFW_MAX_NUM_SVC_V01; |
| 366 | else |
| 367 | req.svc_cfg_len = config->num_ce_svc_pipe_cfg; |
| 368 | for (i = 0; i < req.svc_cfg_len; i++) { |
| 369 | req.svc_cfg[i].service_id = config->ce_svc_cfg[i].service_id; |
| 370 | req.svc_cfg[i].pipe_dir = config->ce_svc_cfg[i].pipe_dir; |
| 371 | req.svc_cfg[i].pipe_num = config->ce_svc_cfg[i].pipe_num; |
| 372 | } |
| 373 | |
| 374 | req.shadow_reg_v2_valid = 1; |
| 375 | if (config->num_shadow_reg_v2_cfg > |
| 376 | QMI_WLFW_MAX_NUM_SHADOW_REG_V2_V01) |
| 377 | req.shadow_reg_v2_len = QMI_WLFW_MAX_NUM_SHADOW_REG_V2_V01; |
| 378 | else |
| 379 | req.shadow_reg_v2_len = config->num_shadow_reg_v2_cfg; |
| 380 | |
| 381 | memcpy(req.shadow_reg_v2, config->shadow_reg_v2_cfg, |
| 382 | sizeof(struct wlfw_shadow_reg_v2_cfg_s_v01) |
| 383 | * req.shadow_reg_v2_len); |
| 384 | |
| 385 | ret = cnss_wlfw_wlan_cfg_send_sync(plat_priv, &req); |
| 386 | if (ret) |
| 387 | goto out; |
| 388 | |
| 389 | skip_cfg: |
| 390 | ret = cnss_wlfw_wlan_mode_send_sync(plat_priv, mode); |
| 391 | out: |
| 392 | return ret; |
| 393 | } |
| 394 | EXPORT_SYMBOL(cnss_wlan_enable); |
| 395 | |
| 396 | int cnss_wlan_disable(struct device *dev, enum cnss_driver_mode mode) |
| 397 | { |
| 398 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 399 | |
| 400 | if (plat_priv->device_id == QCA6174_DEVICE_ID) |
| 401 | return 0; |
| 402 | |
| 403 | if (qmi_bypass) |
| 404 | return 0; |
| 405 | |
| 406 | return cnss_wlfw_wlan_mode_send_sync(plat_priv, QMI_WLFW_OFF_V01); |
| 407 | } |
| 408 | EXPORT_SYMBOL(cnss_wlan_disable); |
| 409 | |
| 410 | #ifdef CONFIG_CNSS2_DEBUG |
| 411 | int cnss_athdiag_read(struct device *dev, u32 offset, u32 mem_type, |
| 412 | u32 data_len, u8 *output) |
| 413 | { |
| 414 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 415 | int ret = 0; |
| 416 | |
| 417 | if (!plat_priv) { |
| 418 | cnss_pr_err("plat_priv is NULL!\n"); |
| 419 | return -EINVAL; |
| 420 | } |
| 421 | |
| 422 | if (plat_priv->device_id == QCA6174_DEVICE_ID) |
| 423 | return 0; |
| 424 | |
| 425 | if (!output || data_len == 0 || data_len > QMI_WLFW_MAX_DATA_SIZE_V01) { |
| 426 | cnss_pr_err("Invalid parameters for athdiag read: output %p, data_len %u\n", |
| 427 | output, data_len); |
| 428 | ret = -EINVAL; |
| 429 | goto out; |
| 430 | } |
| 431 | |
| 432 | if (!test_bit(CNSS_FW_READY, &plat_priv->driver_state)) { |
| 433 | cnss_pr_err("Invalid state for athdiag read: 0x%lx\n", |
| 434 | plat_priv->driver_state); |
| 435 | ret = -EINVAL; |
| 436 | goto out; |
| 437 | } |
| 438 | |
| 439 | ret = cnss_wlfw_athdiag_read_send_sync(plat_priv, offset, mem_type, |
| 440 | data_len, output); |
| 441 | |
| 442 | out: |
| 443 | return ret; |
| 444 | } |
| 445 | EXPORT_SYMBOL(cnss_athdiag_read); |
| 446 | |
| 447 | int cnss_athdiag_write(struct device *dev, u32 offset, u32 mem_type, |
| 448 | u32 data_len, u8 *input) |
| 449 | { |
| 450 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 451 | int ret = 0; |
| 452 | |
| 453 | if (!plat_priv) { |
| 454 | cnss_pr_err("plat_priv is NULL!\n"); |
| 455 | return -EINVAL; |
| 456 | } |
| 457 | |
| 458 | if (plat_priv->device_id == QCA6174_DEVICE_ID) |
| 459 | return 0; |
| 460 | |
| 461 | if (!input || data_len == 0 || data_len > QMI_WLFW_MAX_DATA_SIZE_V01) { |
| 462 | cnss_pr_err("Invalid parameters for athdiag write: input %p, data_len %u\n", |
| 463 | input, data_len); |
| 464 | ret = -EINVAL; |
| 465 | goto out; |
| 466 | } |
| 467 | |
| 468 | if (!test_bit(CNSS_FW_READY, &plat_priv->driver_state)) { |
| 469 | cnss_pr_err("Invalid state for athdiag write: 0x%lx\n", |
| 470 | plat_priv->driver_state); |
| 471 | ret = -EINVAL; |
| 472 | goto out; |
| 473 | } |
| 474 | |
| 475 | ret = cnss_wlfw_athdiag_write_send_sync(plat_priv, offset, mem_type, |
| 476 | data_len, input); |
| 477 | |
| 478 | out: |
| 479 | return ret; |
| 480 | } |
| 481 | EXPORT_SYMBOL(cnss_athdiag_write); |
| 482 | #else |
| 483 | int cnss_athdiag_read(struct device *dev, u32 offset, u32 mem_type, |
| 484 | u32 data_len, u8 *output) |
| 485 | { |
| 486 | return -EPERM; |
| 487 | } |
| 488 | EXPORT_SYMBOL(cnss_athdiag_read); |
| 489 | |
| 490 | int cnss_athdiag_write(struct device *dev, u32 offset, u32 mem_type, |
| 491 | u32 data_len, u8 *input) |
| 492 | { |
| 493 | return -EPERM; |
| 494 | } |
| 495 | EXPORT_SYMBOL(cnss_athdiag_write); |
| 496 | #endif |
| 497 | |
| 498 | int cnss_set_fw_log_mode(struct device *dev, u8 fw_log_mode) |
| 499 | { |
| 500 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 501 | |
| 502 | if (plat_priv->device_id == QCA6174_DEVICE_ID) |
| 503 | return 0; |
| 504 | |
| 505 | return cnss_wlfw_ini_send_sync(plat_priv, fw_log_mode); |
| 506 | } |
| 507 | EXPORT_SYMBOL(cnss_set_fw_log_mode); |
| 508 | |
| 509 | u32 cnss_get_wake_msi(struct cnss_plat_data *plat_priv) |
| 510 | { |
| 511 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 512 | int ret, num_vectors; |
| 513 | u32 user_base_data, base_vector; |
| 514 | |
| 515 | ret = cnss_get_user_msi_assignment(&pci_priv->pci_dev->dev, |
| 516 | WAKE_MSI_NAME, &num_vectors, |
| 517 | &user_base_data, &base_vector); |
| 518 | |
| 519 | if (ret) { |
| 520 | cnss_pr_err("WAKE MSI is not valid\n"); |
| 521 | return 0; |
| 522 | } |
| 523 | |
| 524 | return user_base_data; |
| 525 | } |
| 526 | |
| 527 | static int cnss_fw_mem_ready_hdlr(struct cnss_plat_data *plat_priv) |
| 528 | { |
| 529 | int ret = 0; |
| 530 | |
| 531 | if (!plat_priv) |
| 532 | return -ENODEV; |
| 533 | |
| 534 | set_bit(CNSS_FW_MEM_READY, &plat_priv->driver_state); |
| 535 | |
| 536 | ret = cnss_wlfw_tgt_cap_send_sync(plat_priv); |
| 537 | if (ret) |
| 538 | goto out; |
| 539 | |
| 540 | ret = cnss_wlfw_bdf_dnld_send_sync(plat_priv); |
| 541 | if (ret) |
| 542 | goto out; |
| 543 | |
| 544 | ret = cnss_pci_load_m3(plat_priv->bus_priv); |
| 545 | if (ret) |
| 546 | goto out; |
| 547 | |
| 548 | ret = cnss_wlfw_m3_dnld_send_sync(plat_priv); |
| 549 | if (ret) |
| 550 | goto out; |
| 551 | |
| 552 | return 0; |
| 553 | out: |
| 554 | return ret; |
| 555 | } |
| 556 | |
| 557 | static int cnss_driver_call_probe(struct cnss_plat_data *plat_priv) |
| 558 | { |
| 559 | int ret = 0; |
| 560 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 561 | |
| 562 | if (test_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state)) { |
| 563 | clear_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state); |
| 564 | cnss_pr_dbg("Skip driver probe\n"); |
| 565 | goto out; |
| 566 | } |
| 567 | |
| 568 | if (!plat_priv->driver_ops) { |
| 569 | cnss_pr_err("driver_ops is NULL\n"); |
| 570 | ret = -EINVAL; |
| 571 | goto out; |
| 572 | } |
| 573 | |
| 574 | if (test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state)) { |
| 575 | ret = plat_priv->driver_ops->reinit(pci_priv->pci_dev, |
| 576 | pci_priv->pci_device_id); |
| 577 | if (ret) { |
| 578 | cnss_pr_err("Failed to reinit host driver, err = %d\n", |
| 579 | ret); |
| 580 | goto out; |
| 581 | } |
| 582 | clear_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state); |
| 583 | } else if (test_bit(CNSS_DRIVER_LOADING, &plat_priv->driver_state)) { |
| 584 | ret = plat_priv->driver_ops->probe(pci_priv->pci_dev, |
| 585 | pci_priv->pci_device_id); |
| 586 | if (ret) { |
| 587 | cnss_pr_err("Failed to probe host driver, err = %d\n", |
| 588 | ret); |
| 589 | goto out; |
| 590 | } |
| 591 | clear_bit(CNSS_DRIVER_LOADING, &plat_priv->driver_state); |
| 592 | set_bit(CNSS_DRIVER_PROBED, &plat_priv->driver_state); |
| 593 | } |
| 594 | |
| 595 | return 0; |
| 596 | |
| 597 | out: |
| 598 | return ret; |
| 599 | } |
| 600 | |
| 601 | static int cnss_driver_call_remove(struct cnss_plat_data *plat_priv) |
| 602 | { |
| 603 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 604 | |
| 605 | if (test_bit(CNSS_COLD_BOOT_CAL, &plat_priv->driver_state) || |
| 606 | test_bit(CNSS_FW_BOOT_RECOVERY, &plat_priv->driver_state) || |
| 607 | test_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state)) { |
| 608 | cnss_pr_dbg("Skip driver remove\n"); |
| 609 | return 0; |
| 610 | } |
| 611 | |
| 612 | if (!plat_priv->driver_ops) { |
| 613 | cnss_pr_err("driver_ops is NULL\n"); |
| 614 | return -EINVAL; |
| 615 | } |
| 616 | |
| 617 | if (test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state)) { |
| 618 | plat_priv->driver_ops->shutdown(pci_priv->pci_dev); |
| 619 | } else if (test_bit(CNSS_DRIVER_UNLOADING, &plat_priv->driver_state)) { |
| 620 | plat_priv->driver_ops->remove(pci_priv->pci_dev); |
| 621 | clear_bit(CNSS_DRIVER_PROBED, &plat_priv->driver_state); |
| 622 | } |
| 623 | |
| 624 | return 0; |
| 625 | } |
| 626 | |
| 627 | static int cnss_fw_ready_hdlr(struct cnss_plat_data *plat_priv) |
| 628 | { |
| 629 | int ret = 0; |
| 630 | |
| 631 | if (!plat_priv) |
| 632 | return -ENODEV; |
| 633 | |
| 634 | del_timer(&plat_priv->fw_boot_timer); |
| 635 | set_bit(CNSS_FW_READY, &plat_priv->driver_state); |
| 636 | |
| 637 | if (test_bit(CNSS_FW_BOOT_RECOVERY, &plat_priv->driver_state)) { |
| 638 | clear_bit(CNSS_FW_BOOT_RECOVERY, &plat_priv->driver_state); |
| 639 | clear_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state); |
| 640 | } |
| 641 | |
| 642 | if (enable_waltest) { |
| 643 | ret = cnss_wlfw_wlan_mode_send_sync(plat_priv, |
| 644 | QMI_WLFW_WALTEST_V01); |
| 645 | } else if (test_bit(CNSS_COLD_BOOT_CAL, &plat_priv->driver_state)) { |
| 646 | ret = cnss_wlfw_wlan_mode_send_sync(plat_priv, |
| 647 | QMI_WLFW_CALIBRATION_V01); |
| 648 | } else if (test_bit(CNSS_DRIVER_LOADING, &plat_priv->driver_state) || |
| 649 | test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state)) { |
| 650 | ret = cnss_driver_call_probe(plat_priv); |
| 651 | } else { |
| 652 | complete(&plat_priv->power_up_complete); |
| 653 | } |
| 654 | |
| 655 | if (ret) |
| 656 | goto shutdown; |
| 657 | |
| 658 | return 0; |
| 659 | |
| 660 | shutdown: |
| 661 | cnss_pci_stop_mhi(plat_priv->bus_priv); |
| 662 | cnss_suspend_pci_link(plat_priv->bus_priv); |
| 663 | cnss_power_off_device(plat_priv); |
| 664 | |
| 665 | return ret; |
| 666 | } |
| 667 | |
| 668 | static char *cnss_driver_event_to_str(enum cnss_driver_event_type type) |
| 669 | { |
| 670 | switch (type) { |
| 671 | case CNSS_DRIVER_EVENT_SERVER_ARRIVE: |
| 672 | return "SERVER_ARRIVE"; |
| 673 | case CNSS_DRIVER_EVENT_SERVER_EXIT: |
| 674 | return "SERVER_EXIT"; |
| 675 | case CNSS_DRIVER_EVENT_REQUEST_MEM: |
| 676 | return "REQUEST_MEM"; |
| 677 | case CNSS_DRIVER_EVENT_FW_MEM_READY: |
| 678 | return "FW_MEM_READY"; |
| 679 | case CNSS_DRIVER_EVENT_FW_READY: |
| 680 | return "FW_READY"; |
| 681 | case CNSS_DRIVER_EVENT_COLD_BOOT_CAL_START: |
| 682 | return "COLD_BOOT_CAL_START"; |
| 683 | case CNSS_DRIVER_EVENT_COLD_BOOT_CAL_DONE: |
| 684 | return "COLD_BOOT_CAL_DONE"; |
| 685 | case CNSS_DRIVER_EVENT_REGISTER_DRIVER: |
| 686 | return "REGISTER_DRIVER"; |
| 687 | case CNSS_DRIVER_EVENT_UNREGISTER_DRIVER: |
| 688 | return "UNREGISTER_DRIVER"; |
| 689 | case CNSS_DRIVER_EVENT_RECOVERY: |
| 690 | return "RECOVERY"; |
| 691 | case CNSS_DRIVER_EVENT_FORCE_FW_ASSERT: |
| 692 | return "FORCE_FW_ASSERT"; |
| 693 | case CNSS_DRIVER_EVENT_POWER_UP: |
| 694 | return "POWER_UP"; |
| 695 | case CNSS_DRIVER_EVENT_POWER_DOWN: |
| 696 | return "POWER_DOWN"; |
| 697 | case CNSS_DRIVER_EVENT_MAX: |
| 698 | return "EVENT_MAX"; |
| 699 | } |
| 700 | |
| 701 | return "UNKNOWN"; |
| 702 | }; |
| 703 | |
| 704 | int cnss_driver_event_post(struct cnss_plat_data *plat_priv, |
| 705 | enum cnss_driver_event_type type, |
| 706 | u32 flags, void *data) |
| 707 | { |
| 708 | struct cnss_driver_event *event; |
| 709 | unsigned long irq_flags; |
| 710 | int gfp = GFP_KERNEL; |
| 711 | int ret = 0; |
| 712 | |
| 713 | if (!plat_priv) |
| 714 | return -ENODEV; |
| 715 | |
| 716 | cnss_pr_dbg("Posting event: %s(%d)%s, state: 0x%lx flags: 0x%0x\n", |
| 717 | cnss_driver_event_to_str(type), type, |
| 718 | flags ? "-sync" : "", plat_priv->driver_state, flags); |
| 719 | |
| 720 | if (type >= CNSS_DRIVER_EVENT_MAX) { |
| 721 | cnss_pr_err("Invalid Event type: %d, can't post", type); |
| 722 | return -EINVAL; |
| 723 | } |
| 724 | |
| 725 | if (in_interrupt() || irqs_disabled()) |
| 726 | gfp = GFP_ATOMIC; |
| 727 | |
| 728 | event = kzalloc(sizeof(*event), gfp); |
| 729 | if (!event) |
| 730 | return -ENOMEM; |
| 731 | |
| 732 | cnss_pm_stay_awake(plat_priv); |
| 733 | |
| 734 | event->type = type; |
| 735 | event->data = data; |
| 736 | init_completion(&event->complete); |
| 737 | event->ret = CNSS_EVENT_PENDING; |
| 738 | event->sync = !!(flags & CNSS_EVENT_SYNC); |
| 739 | |
| 740 | spin_lock_irqsave(&plat_priv->event_lock, irq_flags); |
| 741 | list_add_tail(&event->list, &plat_priv->event_list); |
| 742 | spin_unlock_irqrestore(&plat_priv->event_lock, irq_flags); |
| 743 | |
| 744 | queue_work(plat_priv->event_wq, &plat_priv->event_work); |
| 745 | |
| 746 | if (!(flags & CNSS_EVENT_SYNC)) |
| 747 | goto out; |
| 748 | |
| 749 | if (flags & CNSS_EVENT_UNINTERRUPTIBLE) |
| 750 | wait_for_completion(&event->complete); |
| 751 | else |
| 752 | ret = wait_for_completion_interruptible(&event->complete); |
| 753 | |
| 754 | cnss_pr_dbg("Completed event: %s(%d), state: 0x%lx, ret: %d/%d\n", |
| 755 | cnss_driver_event_to_str(type), type, |
| 756 | plat_priv->driver_state, ret, event->ret); |
| 757 | spin_lock_irqsave(&plat_priv->event_lock, irq_flags); |
| 758 | if (ret == -ERESTARTSYS && event->ret == CNSS_EVENT_PENDING) { |
| 759 | event->sync = false; |
| 760 | spin_unlock_irqrestore(&plat_priv->event_lock, irq_flags); |
| 761 | ret = -EINTR; |
| 762 | goto out; |
| 763 | } |
| 764 | spin_unlock_irqrestore(&plat_priv->event_lock, irq_flags); |
| 765 | |
| 766 | ret = event->ret; |
| 767 | kfree(event); |
| 768 | |
| 769 | out: |
| 770 | cnss_pm_relax(plat_priv); |
| 771 | return ret; |
| 772 | } |
| 773 | |
| 774 | int cnss_power_up(struct device *dev) |
| 775 | { |
| 776 | int ret = 0; |
| 777 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 778 | unsigned int timeout; |
| 779 | |
| 780 | if (!plat_priv) { |
| 781 | cnss_pr_err("plat_priv is NULL\n"); |
| 782 | return -ENODEV; |
| 783 | } |
| 784 | |
| 785 | cnss_pr_dbg("Powering up device\n"); |
| 786 | |
| 787 | ret = cnss_driver_event_post(plat_priv, |
| 788 | CNSS_DRIVER_EVENT_POWER_UP, |
| 789 | CNSS_EVENT_SYNC, NULL); |
| 790 | if (ret) |
| 791 | goto out; |
| 792 | |
| 793 | if (plat_priv->device_id == QCA6174_DEVICE_ID) |
| 794 | goto out; |
| 795 | |
| 796 | timeout = cnss_get_qmi_timeout(); |
| 797 | |
| 798 | reinit_completion(&plat_priv->power_up_complete); |
| 799 | ret = wait_for_completion_timeout(&plat_priv->power_up_complete, |
| 800 | msecs_to_jiffies(timeout) << 2); |
| 801 | if (!ret) { |
| 802 | cnss_pr_err("Timeout waiting for power up to complete\n"); |
| 803 | ret = -EAGAIN; |
| 804 | goto out; |
| 805 | } |
| 806 | |
| 807 | return 0; |
| 808 | |
| 809 | out: |
| 810 | return ret; |
| 811 | } |
| 812 | EXPORT_SYMBOL(cnss_power_up); |
| 813 | |
| 814 | int cnss_power_down(struct device *dev) |
| 815 | { |
| 816 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 817 | |
| 818 | if (!plat_priv) { |
| 819 | cnss_pr_err("plat_priv is NULL\n"); |
| 820 | return -ENODEV; |
| 821 | } |
| 822 | |
| 823 | cnss_pr_dbg("Powering down device\n"); |
| 824 | |
| 825 | return cnss_driver_event_post(plat_priv, |
| 826 | CNSS_DRIVER_EVENT_POWER_DOWN, |
| 827 | CNSS_EVENT_SYNC, NULL); |
| 828 | } |
| 829 | EXPORT_SYMBOL(cnss_power_down); |
| 830 | |
| 831 | int cnss_wlan_register_driver(struct cnss_wlan_driver *driver_ops) |
| 832 | { |
| 833 | int ret = 0; |
| 834 | struct cnss_plat_data *plat_priv = cnss_get_plat_priv(NULL); |
| 835 | |
| 836 | if (!plat_priv) { |
| 837 | cnss_pr_err("plat_priv is NULL!\n"); |
| 838 | return -ENODEV; |
| 839 | } |
| 840 | |
| 841 | if (plat_priv->driver_ops) { |
| 842 | cnss_pr_err("Driver has already registered!\n"); |
| 843 | return -EEXIST; |
| 844 | } |
| 845 | |
| 846 | ret = cnss_driver_event_post(plat_priv, |
| 847 | CNSS_DRIVER_EVENT_REGISTER_DRIVER, |
| 848 | CNSS_EVENT_SYNC_UNINTERRUPTIBLE, |
| 849 | driver_ops); |
| 850 | return ret; |
| 851 | } |
| 852 | EXPORT_SYMBOL(cnss_wlan_register_driver); |
| 853 | |
| 854 | void cnss_wlan_unregister_driver(struct cnss_wlan_driver *driver_ops) |
| 855 | { |
| 856 | struct cnss_plat_data *plat_priv = cnss_get_plat_priv(NULL); |
| 857 | |
| 858 | if (!plat_priv) { |
| 859 | cnss_pr_err("plat_priv is NULL!\n"); |
| 860 | return; |
| 861 | } |
| 862 | |
| 863 | cnss_driver_event_post(plat_priv, |
| 864 | CNSS_DRIVER_EVENT_UNREGISTER_DRIVER, |
| 865 | CNSS_EVENT_SYNC_UNINTERRUPTIBLE, NULL); |
| 866 | } |
| 867 | EXPORT_SYMBOL(cnss_wlan_unregister_driver); |
| 868 | |
| 869 | static int cnss_get_resources(struct cnss_plat_data *plat_priv) |
| 870 | { |
| 871 | int ret = 0; |
| 872 | |
| 873 | ret = cnss_get_vreg(plat_priv); |
| 874 | if (ret) { |
| 875 | cnss_pr_err("Failed to get vreg, err = %d\n", ret); |
| 876 | goto out; |
| 877 | } |
| 878 | |
| 879 | ret = cnss_get_pinctrl(plat_priv); |
| 880 | if (ret) { |
| 881 | cnss_pr_err("Failed to get pinctrl, err = %d\n", ret); |
| 882 | goto out; |
| 883 | } |
| 884 | |
| 885 | return 0; |
| 886 | out: |
| 887 | return ret; |
| 888 | } |
| 889 | |
| 890 | static void cnss_put_resources(struct cnss_plat_data *plat_priv) |
| 891 | { |
| 892 | } |
| 893 | |
| 894 | static int cnss_modem_notifier_nb(struct notifier_block *nb, |
| 895 | unsigned long code, |
| 896 | void *ss_handle) |
| 897 | { |
| 898 | struct cnss_plat_data *plat_priv = |
| 899 | container_of(nb, struct cnss_plat_data, modem_nb); |
| 900 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 901 | struct cnss_esoc_info *esoc_info; |
| 902 | struct cnss_wlan_driver *driver_ops; |
| 903 | |
| 904 | cnss_pr_dbg("Modem notifier: event %lu\n", code); |
| 905 | |
| 906 | if (!pci_priv) |
| 907 | return NOTIFY_DONE; |
| 908 | |
| 909 | esoc_info = &plat_priv->esoc_info; |
| 910 | |
| 911 | if (code == SUBSYS_AFTER_POWERUP) |
| 912 | esoc_info->modem_current_status = 1; |
| 913 | else if (code == SUBSYS_BEFORE_SHUTDOWN) |
| 914 | esoc_info->modem_current_status = 0; |
| 915 | else |
| 916 | return NOTIFY_DONE; |
| 917 | |
| 918 | driver_ops = plat_priv->driver_ops; |
| 919 | if (!driver_ops || !driver_ops->modem_status) |
| 920 | return NOTIFY_DONE; |
| 921 | |
| 922 | driver_ops->modem_status(pci_priv->pci_dev, |
| 923 | esoc_info->modem_current_status); |
| 924 | |
| 925 | return NOTIFY_OK; |
| 926 | } |
| 927 | |
| 928 | static int cnss_register_esoc(struct cnss_plat_data *plat_priv) |
| 929 | { |
| 930 | int ret = 0; |
| 931 | struct device *dev; |
| 932 | struct cnss_esoc_info *esoc_info; |
| 933 | struct esoc_desc *esoc_desc; |
| 934 | const char *client_desc; |
| 935 | |
| 936 | dev = &plat_priv->plat_dev->dev; |
| 937 | esoc_info = &plat_priv->esoc_info; |
| 938 | |
| 939 | esoc_info->notify_modem_status = |
| 940 | of_property_read_bool(dev->of_node, |
| 941 | "qcom,notify-modem-status"); |
| 942 | |
Yue Ma | 3eb5562 | 2018-02-22 12:14:00 -0800 | [diff] [blame^] | 943 | if (!esoc_info->notify_modem_status) |
Yue Ma | 0317e4a | 2018-01-10 11:48:32 -0800 | [diff] [blame] | 944 | goto out; |
| 945 | |
| 946 | ret = of_property_read_string_index(dev->of_node, "esoc-names", 0, |
| 947 | &client_desc); |
| 948 | if (ret) { |
| 949 | cnss_pr_dbg("esoc-names is not defined in DT, skip!\n"); |
| 950 | } else { |
| 951 | esoc_desc = devm_register_esoc_client(dev, client_desc); |
| 952 | if (IS_ERR_OR_NULL(esoc_desc)) { |
| 953 | ret = PTR_RET(esoc_desc); |
| 954 | cnss_pr_err("Failed to register esoc_desc, err = %d\n", |
| 955 | ret); |
| 956 | goto out; |
| 957 | } |
| 958 | esoc_info->esoc_desc = esoc_desc; |
| 959 | } |
| 960 | |
| 961 | plat_priv->modem_nb.notifier_call = cnss_modem_notifier_nb; |
| 962 | esoc_info->modem_current_status = 0; |
| 963 | esoc_info->modem_notify_handler = |
| 964 | subsys_notif_register_notifier(esoc_info->esoc_desc ? |
| 965 | esoc_info->esoc_desc->name : |
| 966 | "modem", &plat_priv->modem_nb); |
| 967 | if (IS_ERR(esoc_info->modem_notify_handler)) { |
| 968 | ret = PTR_ERR(esoc_info->modem_notify_handler); |
| 969 | cnss_pr_err("Failed to register esoc notifier, err = %d\n", |
| 970 | ret); |
| 971 | goto unreg_esoc; |
| 972 | } |
| 973 | |
| 974 | return 0; |
| 975 | unreg_esoc: |
| 976 | if (esoc_info->esoc_desc) |
| 977 | devm_unregister_esoc_client(dev, esoc_info->esoc_desc); |
| 978 | out: |
| 979 | return ret; |
| 980 | } |
| 981 | |
| 982 | static void cnss_unregister_esoc(struct cnss_plat_data *plat_priv) |
| 983 | { |
| 984 | struct device *dev; |
| 985 | struct cnss_esoc_info *esoc_info; |
| 986 | |
| 987 | dev = &plat_priv->plat_dev->dev; |
| 988 | esoc_info = &plat_priv->esoc_info; |
| 989 | |
| 990 | if (esoc_info->notify_modem_status) |
| 991 | subsys_notif_unregister_notifier(esoc_info-> |
| 992 | modem_notify_handler, |
| 993 | &plat_priv->modem_nb); |
| 994 | if (esoc_info->esoc_desc) |
| 995 | devm_unregister_esoc_client(dev, esoc_info->esoc_desc); |
| 996 | } |
| 997 | |
| 998 | static int cnss_qca6174_powerup(struct cnss_plat_data *plat_priv) |
| 999 | { |
| 1000 | int ret = 0; |
| 1001 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1002 | |
| 1003 | if (!pci_priv) { |
| 1004 | cnss_pr_err("pci_priv is NULL!\n"); |
| 1005 | return -ENODEV; |
| 1006 | } |
| 1007 | |
| 1008 | ret = cnss_power_on_device(plat_priv); |
| 1009 | if (ret) { |
| 1010 | cnss_pr_err("Failed to power on device, err = %d\n", ret); |
| 1011 | goto out; |
| 1012 | } |
| 1013 | |
| 1014 | ret = cnss_resume_pci_link(pci_priv); |
| 1015 | if (ret) { |
| 1016 | cnss_pr_err("Failed to resume PCI link, err = %d\n", ret); |
| 1017 | goto power_off; |
| 1018 | } |
| 1019 | |
| 1020 | ret = cnss_driver_call_probe(plat_priv); |
| 1021 | if (ret) |
| 1022 | goto suspend_link; |
| 1023 | |
| 1024 | return 0; |
| 1025 | suspend_link: |
| 1026 | cnss_suspend_pci_link(pci_priv); |
| 1027 | power_off: |
| 1028 | cnss_power_off_device(plat_priv); |
| 1029 | out: |
| 1030 | return ret; |
| 1031 | } |
| 1032 | |
| 1033 | static int cnss_qca6174_shutdown(struct cnss_plat_data *plat_priv) |
| 1034 | { |
| 1035 | int ret = 0; |
| 1036 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1037 | |
| 1038 | if (!pci_priv) |
| 1039 | return -ENODEV; |
| 1040 | |
| 1041 | cnss_pm_request_resume(pci_priv); |
| 1042 | |
| 1043 | cnss_driver_call_remove(plat_priv); |
| 1044 | |
| 1045 | cnss_request_bus_bandwidth(&plat_priv->plat_dev->dev, |
| 1046 | CNSS_BUS_WIDTH_NONE); |
| 1047 | cnss_pci_set_monitor_wake_intr(pci_priv, false); |
| 1048 | cnss_pci_set_auto_suspended(pci_priv, 0); |
| 1049 | |
| 1050 | ret = cnss_suspend_pci_link(pci_priv); |
| 1051 | if (ret) |
| 1052 | cnss_pr_err("Failed to suspend PCI link, err = %d\n", ret); |
| 1053 | |
| 1054 | cnss_power_off_device(plat_priv); |
| 1055 | |
| 1056 | clear_bit(CNSS_DRIVER_UNLOADING, &plat_priv->driver_state); |
| 1057 | |
| 1058 | return ret; |
| 1059 | } |
| 1060 | |
| 1061 | static void cnss_qca6174_crash_shutdown(struct cnss_plat_data *plat_priv) |
| 1062 | { |
| 1063 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1064 | |
| 1065 | if (!plat_priv->driver_ops) |
| 1066 | return; |
| 1067 | |
| 1068 | plat_priv->driver_ops->crash_shutdown(pci_priv->pci_dev); |
| 1069 | } |
| 1070 | |
| 1071 | static int cnss_qca6290_powerup(struct cnss_plat_data *plat_priv) |
| 1072 | { |
| 1073 | int ret = 0; |
| 1074 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1075 | unsigned int timeout; |
| 1076 | |
| 1077 | if (!pci_priv) { |
| 1078 | cnss_pr_err("pci_priv is NULL!\n"); |
| 1079 | return -ENODEV; |
| 1080 | } |
| 1081 | |
| 1082 | if (plat_priv->ramdump_info_v2.dump_data_valid || |
| 1083 | test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state)) { |
| 1084 | cnss_pci_set_mhi_state(pci_priv, CNSS_MHI_DEINIT); |
| 1085 | cnss_pci_clear_dump_info(pci_priv); |
| 1086 | } |
| 1087 | |
| 1088 | ret = cnss_power_on_device(plat_priv); |
| 1089 | if (ret) { |
| 1090 | cnss_pr_err("Failed to power on device, err = %d\n", ret); |
| 1091 | goto out; |
| 1092 | } |
| 1093 | |
| 1094 | ret = cnss_resume_pci_link(pci_priv); |
| 1095 | if (ret) { |
| 1096 | cnss_pr_err("Failed to resume PCI link, err = %d\n", ret); |
| 1097 | goto power_off; |
| 1098 | } |
| 1099 | |
| 1100 | timeout = cnss_get_qmi_timeout(); |
| 1101 | |
| 1102 | ret = cnss_pci_start_mhi(pci_priv); |
| 1103 | if (ret) { |
| 1104 | cnss_pr_err("Failed to start MHI, err = %d\n", ret); |
| 1105 | if (!test_bit(CNSS_DEV_ERR_NOTIFY, &plat_priv->driver_state) && |
| 1106 | !pci_priv->pci_link_down_ind && timeout) |
| 1107 | mod_timer(&plat_priv->fw_boot_timer, |
| 1108 | jiffies + msecs_to_jiffies(timeout >> 1)); |
| 1109 | return 0; |
| 1110 | } |
| 1111 | |
| 1112 | if (test_bit(USE_CORE_ONLY_FW, &quirks)) { |
| 1113 | clear_bit(CNSS_FW_BOOT_RECOVERY, &plat_priv->driver_state); |
| 1114 | clear_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state); |
| 1115 | return 0; |
| 1116 | } |
| 1117 | |
| 1118 | cnss_set_pin_connect_status(plat_priv); |
| 1119 | |
| 1120 | if (qmi_bypass) { |
| 1121 | ret = cnss_driver_call_probe(plat_priv); |
| 1122 | if (ret) |
| 1123 | goto stop_mhi; |
| 1124 | } else if (timeout) { |
| 1125 | mod_timer(&plat_priv->fw_boot_timer, |
| 1126 | jiffies + msecs_to_jiffies(timeout << 1)); |
| 1127 | } |
| 1128 | |
| 1129 | return 0; |
| 1130 | |
| 1131 | stop_mhi: |
| 1132 | cnss_pci_stop_mhi(pci_priv); |
| 1133 | cnss_suspend_pci_link(pci_priv); |
| 1134 | power_off: |
| 1135 | cnss_power_off_device(plat_priv); |
| 1136 | out: |
| 1137 | return ret; |
| 1138 | } |
| 1139 | |
| 1140 | static int cnss_qca6290_shutdown(struct cnss_plat_data *plat_priv) |
| 1141 | { |
| 1142 | int ret = 0; |
| 1143 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1144 | |
| 1145 | if (!pci_priv) |
| 1146 | return -ENODEV; |
| 1147 | |
| 1148 | cnss_pm_request_resume(pci_priv); |
| 1149 | |
| 1150 | cnss_driver_call_remove(plat_priv); |
| 1151 | |
| 1152 | cnss_request_bus_bandwidth(&plat_priv->plat_dev->dev, |
| 1153 | CNSS_BUS_WIDTH_NONE); |
| 1154 | cnss_pci_set_monitor_wake_intr(pci_priv, false); |
| 1155 | cnss_pci_set_auto_suspended(pci_priv, 0); |
| 1156 | |
| 1157 | cnss_pci_stop_mhi(pci_priv); |
| 1158 | |
| 1159 | ret = cnss_suspend_pci_link(pci_priv); |
| 1160 | if (ret) |
| 1161 | cnss_pr_err("Failed to suspend PCI link, err = %d\n", ret); |
| 1162 | |
| 1163 | cnss_power_off_device(plat_priv); |
| 1164 | |
| 1165 | clear_bit(CNSS_FW_READY, &plat_priv->driver_state); |
| 1166 | clear_bit(CNSS_FW_MEM_READY, &plat_priv->driver_state); |
| 1167 | clear_bit(CNSS_DRIVER_UNLOADING, &plat_priv->driver_state); |
| 1168 | |
| 1169 | return ret; |
| 1170 | } |
| 1171 | |
| 1172 | static void cnss_qca6290_crash_shutdown(struct cnss_plat_data *plat_priv) |
| 1173 | { |
| 1174 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
Yue Ma | 0317e4a | 2018-01-10 11:48:32 -0800 | [diff] [blame] | 1175 | |
| 1176 | cnss_pr_dbg("Crash shutdown with driver_state 0x%lx\n", |
| 1177 | plat_priv->driver_state); |
| 1178 | |
| 1179 | if (test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state) || |
| 1180 | test_bit(CNSS_DRIVER_LOADING, &plat_priv->driver_state) || |
Yue Ma | 3eb5562 | 2018-02-22 12:14:00 -0800 | [diff] [blame^] | 1181 | test_bit(CNSS_DRIVER_UNLOADING, &plat_priv->driver_state)) { |
| 1182 | cnss_pr_dbg("Ignore crash shutdown\n"); |
Yue Ma | 0317e4a | 2018-01-10 11:48:32 -0800 | [diff] [blame] | 1183 | return; |
| 1184 | } |
| 1185 | |
Yue Ma | 3eb5562 | 2018-02-22 12:14:00 -0800 | [diff] [blame^] | 1186 | cnss_pci_collect_dump_info(pci_priv, true); |
Yue Ma | 0317e4a | 2018-01-10 11:48:32 -0800 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | static int cnss_powerup(struct cnss_plat_data *plat_priv) |
| 1190 | { |
| 1191 | int ret; |
| 1192 | |
| 1193 | switch (plat_priv->device_id) { |
| 1194 | case QCA6174_DEVICE_ID: |
| 1195 | ret = cnss_qca6174_powerup(plat_priv); |
| 1196 | break; |
| 1197 | case QCA6290_EMULATION_DEVICE_ID: |
| 1198 | case QCA6290_DEVICE_ID: |
| 1199 | ret = cnss_qca6290_powerup(plat_priv); |
| 1200 | break; |
| 1201 | default: |
| 1202 | cnss_pr_err("Unknown device_id found: 0x%lx\n", |
| 1203 | plat_priv->device_id); |
| 1204 | ret = -ENODEV; |
| 1205 | } |
| 1206 | |
| 1207 | return ret; |
| 1208 | } |
| 1209 | |
| 1210 | static int cnss_shutdown(struct cnss_plat_data *plat_priv) |
| 1211 | { |
| 1212 | int ret; |
| 1213 | |
| 1214 | switch (plat_priv->device_id) { |
| 1215 | case QCA6174_DEVICE_ID: |
| 1216 | ret = cnss_qca6174_shutdown(plat_priv); |
| 1217 | break; |
| 1218 | case QCA6290_EMULATION_DEVICE_ID: |
| 1219 | case QCA6290_DEVICE_ID: |
| 1220 | ret = cnss_qca6290_shutdown(plat_priv); |
| 1221 | break; |
| 1222 | default: |
| 1223 | cnss_pr_err("Unknown device_id found: 0x%lx\n", |
| 1224 | plat_priv->device_id); |
| 1225 | ret = -ENODEV; |
| 1226 | } |
| 1227 | |
| 1228 | return ret; |
| 1229 | } |
| 1230 | |
| 1231 | static int cnss_subsys_powerup(const struct subsys_desc *subsys_desc) |
| 1232 | { |
| 1233 | struct cnss_plat_data *plat_priv; |
| 1234 | |
| 1235 | if (!subsys_desc->dev) { |
| 1236 | cnss_pr_err("dev from subsys_desc is NULL\n"); |
| 1237 | return -ENODEV; |
| 1238 | } |
| 1239 | |
| 1240 | plat_priv = dev_get_drvdata(subsys_desc->dev); |
| 1241 | if (!plat_priv) { |
| 1242 | cnss_pr_err("plat_priv is NULL\n"); |
| 1243 | return -ENODEV; |
| 1244 | } |
| 1245 | |
| 1246 | if (!plat_priv->driver_state) { |
| 1247 | cnss_pr_dbg("Powerup is ignored\n"); |
| 1248 | return 0; |
| 1249 | } |
| 1250 | |
| 1251 | return cnss_powerup(plat_priv); |
| 1252 | } |
| 1253 | |
| 1254 | static int cnss_subsys_shutdown(const struct subsys_desc *subsys_desc, |
| 1255 | bool force_stop) |
| 1256 | { |
| 1257 | struct cnss_plat_data *plat_priv; |
| 1258 | |
| 1259 | if (!subsys_desc->dev) { |
| 1260 | cnss_pr_err("dev from subsys_desc is NULL\n"); |
| 1261 | return -ENODEV; |
| 1262 | } |
| 1263 | |
| 1264 | plat_priv = dev_get_drvdata(subsys_desc->dev); |
| 1265 | if (!plat_priv) { |
| 1266 | cnss_pr_err("plat_priv is NULL\n"); |
| 1267 | return -ENODEV; |
| 1268 | } |
| 1269 | |
| 1270 | if (!plat_priv->driver_state) { |
| 1271 | cnss_pr_dbg("shutdown is ignored\n"); |
| 1272 | return 0; |
| 1273 | } |
| 1274 | |
| 1275 | return cnss_shutdown(plat_priv); |
| 1276 | } |
| 1277 | |
| 1278 | static int cnss_qca6290_ramdump(struct cnss_plat_data *plat_priv) |
| 1279 | { |
| 1280 | struct cnss_ramdump_info_v2 *info_v2 = &plat_priv->ramdump_info_v2; |
| 1281 | struct cnss_dump_data *dump_data = &info_v2->dump_data; |
| 1282 | struct cnss_dump_seg *dump_seg = info_v2->dump_data_vaddr; |
| 1283 | struct ramdump_segment *ramdump_segs, *s; |
| 1284 | int i, ret = 0; |
| 1285 | |
| 1286 | if (!info_v2->dump_data_valid || |
| 1287 | dump_data->nentries == 0) |
| 1288 | return 0; |
| 1289 | |
| 1290 | ramdump_segs = kcalloc(dump_data->nentries, |
| 1291 | sizeof(*ramdump_segs), |
| 1292 | GFP_KERNEL); |
| 1293 | if (!ramdump_segs) |
| 1294 | return -ENOMEM; |
| 1295 | |
| 1296 | s = ramdump_segs; |
| 1297 | for (i = 0; i < dump_data->nentries; i++) { |
| 1298 | s->address = dump_seg->address; |
| 1299 | s->v_address = dump_seg->v_address; |
| 1300 | s->size = dump_seg->size; |
| 1301 | s++; |
| 1302 | dump_seg++; |
| 1303 | } |
| 1304 | |
| 1305 | ret = do_elf_ramdump(info_v2->ramdump_dev, ramdump_segs, |
| 1306 | dump_data->nentries); |
| 1307 | kfree(ramdump_segs); |
| 1308 | |
| 1309 | cnss_pci_set_mhi_state(plat_priv->bus_priv, CNSS_MHI_DEINIT); |
| 1310 | cnss_pci_clear_dump_info(plat_priv->bus_priv); |
| 1311 | |
| 1312 | return ret; |
| 1313 | } |
| 1314 | |
| 1315 | static int cnss_qca6174_ramdump(struct cnss_plat_data *plat_priv) |
| 1316 | { |
| 1317 | int ret = 0; |
| 1318 | struct cnss_ramdump_info *ramdump_info; |
| 1319 | struct ramdump_segment segment; |
| 1320 | |
| 1321 | ramdump_info = &plat_priv->ramdump_info; |
| 1322 | if (!ramdump_info->ramdump_size) |
| 1323 | return -EINVAL; |
| 1324 | |
| 1325 | memset(&segment, 0, sizeof(segment)); |
| 1326 | segment.v_address = ramdump_info->ramdump_va; |
| 1327 | segment.size = ramdump_info->ramdump_size; |
| 1328 | ret = do_ramdump(ramdump_info->ramdump_dev, &segment, 1); |
| 1329 | |
| 1330 | return ret; |
| 1331 | } |
| 1332 | |
| 1333 | static int cnss_subsys_ramdump(int enable, |
| 1334 | const struct subsys_desc *subsys_desc) |
| 1335 | { |
| 1336 | int ret = 0; |
| 1337 | struct cnss_plat_data *plat_priv = dev_get_drvdata(subsys_desc->dev); |
| 1338 | |
| 1339 | if (!plat_priv) { |
| 1340 | cnss_pr_err("plat_priv is NULL!\n"); |
| 1341 | return -ENODEV; |
| 1342 | } |
| 1343 | |
| 1344 | if (!enable) |
| 1345 | return 0; |
| 1346 | |
| 1347 | switch (plat_priv->device_id) { |
| 1348 | case QCA6174_DEVICE_ID: |
| 1349 | ret = cnss_qca6174_ramdump(plat_priv); |
| 1350 | break; |
| 1351 | case QCA6290_EMULATION_DEVICE_ID: |
| 1352 | case QCA6290_DEVICE_ID: |
| 1353 | ret = cnss_qca6290_ramdump(plat_priv); |
| 1354 | break; |
| 1355 | default: |
| 1356 | cnss_pr_err("Unknown device_id found: 0x%lx\n", |
| 1357 | plat_priv->device_id); |
| 1358 | ret = -ENODEV; |
| 1359 | } |
| 1360 | |
| 1361 | return ret; |
| 1362 | } |
| 1363 | |
| 1364 | void *cnss_get_virt_ramdump_mem(struct device *dev, unsigned long *size) |
| 1365 | { |
| 1366 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 1367 | struct cnss_ramdump_info *ramdump_info; |
| 1368 | |
| 1369 | if (!plat_priv) |
| 1370 | return NULL; |
| 1371 | |
| 1372 | ramdump_info = &plat_priv->ramdump_info; |
| 1373 | *size = ramdump_info->ramdump_size; |
| 1374 | |
| 1375 | return ramdump_info->ramdump_va; |
| 1376 | } |
| 1377 | EXPORT_SYMBOL(cnss_get_virt_ramdump_mem); |
| 1378 | |
| 1379 | void cnss_device_crashed(struct device *dev) |
| 1380 | { |
| 1381 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 1382 | struct cnss_subsys_info *subsys_info; |
| 1383 | |
| 1384 | if (!plat_priv) |
| 1385 | return; |
| 1386 | |
| 1387 | subsys_info = &plat_priv->subsys_info; |
| 1388 | if (subsys_info->subsys_device) { |
| 1389 | set_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state); |
| 1390 | subsys_set_crash_status(subsys_info->subsys_device, true); |
| 1391 | subsystem_restart_dev(subsys_info->subsys_device); |
| 1392 | } |
| 1393 | } |
| 1394 | EXPORT_SYMBOL(cnss_device_crashed); |
| 1395 | |
| 1396 | static void cnss_subsys_crash_shutdown(const struct subsys_desc *subsys_desc) |
| 1397 | { |
| 1398 | struct cnss_plat_data *plat_priv = dev_get_drvdata(subsys_desc->dev); |
| 1399 | |
| 1400 | if (!plat_priv) { |
| 1401 | cnss_pr_err("plat_priv is NULL!\n"); |
| 1402 | return; |
| 1403 | } |
| 1404 | |
| 1405 | switch (plat_priv->device_id) { |
| 1406 | case QCA6174_DEVICE_ID: |
| 1407 | cnss_qca6174_crash_shutdown(plat_priv); |
| 1408 | break; |
| 1409 | case QCA6290_EMULATION_DEVICE_ID: |
| 1410 | case QCA6290_DEVICE_ID: |
| 1411 | cnss_qca6290_crash_shutdown(plat_priv); |
| 1412 | break; |
| 1413 | default: |
| 1414 | cnss_pr_err("Unknown device_id found: 0x%lx\n", |
| 1415 | plat_priv->device_id); |
| 1416 | } |
| 1417 | } |
| 1418 | |
| 1419 | static const char *cnss_recovery_reason_to_str(enum cnss_recovery_reason reason) |
| 1420 | { |
| 1421 | switch (reason) { |
| 1422 | case CNSS_REASON_DEFAULT: |
| 1423 | return "DEFAULT"; |
| 1424 | case CNSS_REASON_LINK_DOWN: |
| 1425 | return "LINK_DOWN"; |
| 1426 | case CNSS_REASON_RDDM: |
| 1427 | return "RDDM"; |
| 1428 | case CNSS_REASON_TIMEOUT: |
| 1429 | return "TIMEOUT"; |
| 1430 | } |
| 1431 | |
| 1432 | return "UNKNOWN"; |
| 1433 | }; |
| 1434 | |
| 1435 | static int cnss_do_recovery(struct cnss_plat_data *plat_priv, |
| 1436 | enum cnss_recovery_reason reason) |
| 1437 | { |
| 1438 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1439 | struct cnss_subsys_info *subsys_info = |
| 1440 | &plat_priv->subsys_info; |
Yue Ma | 0317e4a | 2018-01-10 11:48:32 -0800 | [diff] [blame] | 1441 | |
| 1442 | plat_priv->recovery_count++; |
| 1443 | |
| 1444 | if (plat_priv->device_id == QCA6174_DEVICE_ID) |
| 1445 | goto self_recovery; |
| 1446 | |
| 1447 | if (plat_priv->driver_ops && |
| 1448 | test_bit(CNSS_DRIVER_PROBED, &plat_priv->driver_state)) |
| 1449 | plat_priv->driver_ops->update_status(pci_priv->pci_dev, |
| 1450 | CNSS_RECOVERY); |
| 1451 | |
| 1452 | if (test_bit(SKIP_RECOVERY, &quirks)) { |
| 1453 | cnss_pr_dbg("Skip device recovery\n"); |
| 1454 | return 0; |
| 1455 | } |
| 1456 | |
| 1457 | switch (reason) { |
| 1458 | case CNSS_REASON_LINK_DOWN: |
| 1459 | if (test_bit(LINK_DOWN_SELF_RECOVERY, &quirks)) |
| 1460 | goto self_recovery; |
| 1461 | break; |
| 1462 | case CNSS_REASON_RDDM: |
| 1463 | clear_bit(CNSS_DEV_ERR_NOTIFY, &plat_priv->driver_state); |
Yue Ma | 3eb5562 | 2018-02-22 12:14:00 -0800 | [diff] [blame^] | 1464 | cnss_pci_collect_dump_info(pci_priv, false); |
Yue Ma | 0317e4a | 2018-01-10 11:48:32 -0800 | [diff] [blame] | 1465 | break; |
| 1466 | case CNSS_REASON_DEFAULT: |
| 1467 | case CNSS_REASON_TIMEOUT: |
| 1468 | break; |
| 1469 | default: |
| 1470 | cnss_pr_err("Unsupported recovery reason: %s(%d)\n", |
| 1471 | cnss_recovery_reason_to_str(reason), reason); |
| 1472 | break; |
| 1473 | } |
| 1474 | |
| 1475 | if (!subsys_info->subsys_device) |
| 1476 | return 0; |
| 1477 | |
| 1478 | subsys_set_crash_status(subsys_info->subsys_device, true); |
| 1479 | subsystem_restart_dev(subsys_info->subsys_device); |
| 1480 | |
| 1481 | return 0; |
| 1482 | |
| 1483 | self_recovery: |
| 1484 | cnss_shutdown(plat_priv); |
| 1485 | cnss_powerup(plat_priv); |
| 1486 | |
| 1487 | return 0; |
| 1488 | } |
| 1489 | |
| 1490 | static int cnss_driver_recovery_hdlr(struct cnss_plat_data *plat_priv, |
| 1491 | void *data) |
| 1492 | { |
| 1493 | struct cnss_recovery_data *recovery_data = data; |
| 1494 | int ret = 0; |
| 1495 | |
| 1496 | cnss_pr_dbg("Driver recovery is triggered with reason: %s(%d)\n", |
| 1497 | cnss_recovery_reason_to_str(recovery_data->reason), |
| 1498 | recovery_data->reason); |
| 1499 | |
| 1500 | if (!plat_priv->driver_state) { |
| 1501 | cnss_pr_err("Improper driver state, ignore recovery\n"); |
| 1502 | ret = -EINVAL; |
| 1503 | goto out; |
| 1504 | } |
| 1505 | |
| 1506 | if (test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state)) { |
| 1507 | cnss_pr_err("Recovery is already in progress\n"); |
| 1508 | ret = -EINVAL; |
| 1509 | goto out; |
| 1510 | } |
| 1511 | |
| 1512 | if (test_bit(CNSS_DRIVER_UNLOADING, &plat_priv->driver_state)) { |
| 1513 | cnss_pr_err("Driver unload is in progress, ignore recovery\n"); |
| 1514 | ret = -EINVAL; |
| 1515 | goto out; |
| 1516 | } |
| 1517 | |
| 1518 | switch (plat_priv->device_id) { |
| 1519 | case QCA6174_DEVICE_ID: |
| 1520 | if (test_bit(CNSS_DRIVER_LOADING, &plat_priv->driver_state)) { |
| 1521 | cnss_pr_err("Driver load is in progress, ignore recovery\n"); |
| 1522 | ret = -EINVAL; |
| 1523 | goto out; |
| 1524 | } |
| 1525 | break; |
| 1526 | default: |
| 1527 | if (!test_bit(CNSS_FW_READY, &plat_priv->driver_state)) { |
| 1528 | set_bit(CNSS_FW_BOOT_RECOVERY, |
| 1529 | &plat_priv->driver_state); |
| 1530 | } else if (test_bit(CNSS_DRIVER_LOADING, |
| 1531 | &plat_priv->driver_state)) { |
| 1532 | cnss_pr_err("Driver probe is in progress, ignore recovery\n"); |
| 1533 | ret = -EINVAL; |
| 1534 | goto out; |
| 1535 | } |
| 1536 | break; |
| 1537 | } |
| 1538 | |
| 1539 | set_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state); |
| 1540 | ret = cnss_do_recovery(plat_priv, recovery_data->reason); |
| 1541 | |
| 1542 | out: |
| 1543 | kfree(data); |
| 1544 | return ret; |
| 1545 | } |
| 1546 | |
| 1547 | int cnss_self_recovery(struct device *dev, |
| 1548 | enum cnss_recovery_reason reason) |
| 1549 | { |
| 1550 | cnss_schedule_recovery(dev, reason); |
| 1551 | return 0; |
| 1552 | } |
| 1553 | EXPORT_SYMBOL(cnss_self_recovery); |
| 1554 | |
| 1555 | void cnss_schedule_recovery(struct device *dev, |
| 1556 | enum cnss_recovery_reason reason) |
| 1557 | { |
| 1558 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 1559 | struct cnss_recovery_data *data; |
| 1560 | int gfp = GFP_KERNEL; |
| 1561 | |
| 1562 | if (in_interrupt() || irqs_disabled()) |
| 1563 | gfp = GFP_ATOMIC; |
| 1564 | |
| 1565 | data = kzalloc(sizeof(*data), gfp); |
| 1566 | if (!data) |
| 1567 | return; |
| 1568 | |
| 1569 | data->reason = reason; |
| 1570 | cnss_driver_event_post(plat_priv, |
| 1571 | CNSS_DRIVER_EVENT_RECOVERY, |
| 1572 | 0, data); |
| 1573 | } |
| 1574 | EXPORT_SYMBOL(cnss_schedule_recovery); |
| 1575 | |
| 1576 | static int cnss_force_fw_assert_hdlr(struct cnss_plat_data *plat_priv) |
| 1577 | { |
| 1578 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1579 | int ret; |
| 1580 | |
| 1581 | ret = cnss_pci_set_mhi_state(plat_priv->bus_priv, |
| 1582 | CNSS_MHI_TRIGGER_RDDM); |
| 1583 | if (ret) { |
| 1584 | cnss_pr_err("Failed to trigger RDDM, err = %d\n", ret); |
| 1585 | cnss_schedule_recovery(&pci_priv->pci_dev->dev, |
| 1586 | CNSS_REASON_DEFAULT); |
| 1587 | return 0; |
| 1588 | } |
| 1589 | |
| 1590 | if (!test_bit(CNSS_DEV_ERR_NOTIFY, &plat_priv->driver_state)) { |
| 1591 | mod_timer(&plat_priv->fw_boot_timer, |
| 1592 | jiffies + msecs_to_jiffies(FW_ASSERT_TIMEOUT)); |
| 1593 | } |
| 1594 | |
| 1595 | return 0; |
| 1596 | } |
| 1597 | |
| 1598 | int cnss_force_fw_assert(struct device *dev) |
| 1599 | { |
| 1600 | struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev); |
| 1601 | |
| 1602 | if (!plat_priv) { |
| 1603 | cnss_pr_err("plat_priv is NULL\n"); |
| 1604 | return -ENODEV; |
| 1605 | } |
| 1606 | |
| 1607 | if (plat_priv->device_id == QCA6174_DEVICE_ID) { |
| 1608 | cnss_pr_info("Forced FW assert is not supported\n"); |
| 1609 | return -EOPNOTSUPP; |
| 1610 | } |
| 1611 | |
| 1612 | if (test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state)) { |
| 1613 | cnss_pr_info("Recovery is already in progress, ignore forced FW assert\n"); |
| 1614 | return 0; |
| 1615 | } |
| 1616 | |
| 1617 | cnss_driver_event_post(plat_priv, |
| 1618 | CNSS_DRIVER_EVENT_FORCE_FW_ASSERT, |
| 1619 | 0, NULL); |
| 1620 | |
| 1621 | return 0; |
| 1622 | } |
| 1623 | EXPORT_SYMBOL(cnss_force_fw_assert); |
| 1624 | |
| 1625 | void fw_boot_timeout(unsigned long data) |
| 1626 | { |
| 1627 | struct cnss_plat_data *plat_priv = (struct cnss_plat_data *)data; |
| 1628 | struct cnss_pci_data *pci_priv = plat_priv->bus_priv; |
| 1629 | |
| 1630 | cnss_pr_err("Timeout waiting for FW ready indication!\n"); |
| 1631 | |
| 1632 | cnss_schedule_recovery(&pci_priv->pci_dev->dev, |
| 1633 | CNSS_REASON_TIMEOUT); |
| 1634 | } |
| 1635 | |
| 1636 | static int cnss_register_driver_hdlr(struct cnss_plat_data *plat_priv, |
| 1637 | void *data) |
| 1638 | { |
| 1639 | int ret = 0; |
| 1640 | |
| 1641 | set_bit(CNSS_DRIVER_LOADING, &plat_priv->driver_state); |
| 1642 | plat_priv->driver_ops = data; |
| 1643 | |
| 1644 | ret = cnss_powerup(plat_priv); |
| 1645 | if (ret) { |
| 1646 | clear_bit(CNSS_DRIVER_LOADING, &plat_priv->driver_state); |
| 1647 | plat_priv->driver_ops = NULL; |
| 1648 | } |
| 1649 | |
| 1650 | return ret; |
| 1651 | } |
| 1652 | |
| 1653 | static int cnss_unregister_driver_hdlr(struct cnss_plat_data *plat_priv) |
| 1654 | { |
| 1655 | set_bit(CNSS_DRIVER_UNLOADING, &plat_priv->driver_state); |
| 1656 | cnss_shutdown(plat_priv); |
| 1657 | plat_priv->driver_ops = NULL; |
| 1658 | |
| 1659 | return 0; |
| 1660 | } |
| 1661 | |
| 1662 | static int cnss_cold_boot_cal_start_hdlr(struct cnss_plat_data *plat_priv) |
| 1663 | { |
| 1664 | int ret = 0; |
| 1665 | |
| 1666 | set_bit(CNSS_COLD_BOOT_CAL, &plat_priv->driver_state); |
| 1667 | ret = cnss_powerup(plat_priv); |
| 1668 | if (ret) |
| 1669 | clear_bit(CNSS_COLD_BOOT_CAL, &plat_priv->driver_state); |
| 1670 | |
| 1671 | return ret; |
| 1672 | } |
| 1673 | |
| 1674 | static int cnss_cold_boot_cal_done_hdlr(struct cnss_plat_data *plat_priv) |
| 1675 | { |
| 1676 | cnss_wlfw_wlan_mode_send_sync(plat_priv, QMI_WLFW_OFF_V01); |
| 1677 | cnss_shutdown(plat_priv); |
| 1678 | clear_bit(CNSS_COLD_BOOT_CAL, &plat_priv->driver_state); |
| 1679 | |
| 1680 | return 0; |
| 1681 | } |
| 1682 | |
| 1683 | static int cnss_power_up_hdlr(struct cnss_plat_data *plat_priv) |
| 1684 | { |
| 1685 | return cnss_powerup(plat_priv); |
| 1686 | } |
| 1687 | |
| 1688 | static int cnss_power_down_hdlr(struct cnss_plat_data *plat_priv) |
| 1689 | { |
| 1690 | cnss_shutdown(plat_priv); |
| 1691 | |
| 1692 | return 0; |
| 1693 | } |
| 1694 | |
| 1695 | static void cnss_driver_event_work(struct work_struct *work) |
| 1696 | { |
| 1697 | struct cnss_plat_data *plat_priv = |
| 1698 | container_of(work, struct cnss_plat_data, event_work); |
| 1699 | struct cnss_driver_event *event; |
| 1700 | unsigned long flags; |
| 1701 | int ret = 0; |
| 1702 | |
| 1703 | if (!plat_priv) { |
| 1704 | cnss_pr_err("plat_priv is NULL!\n"); |
| 1705 | return; |
| 1706 | } |
| 1707 | |
| 1708 | cnss_pm_stay_awake(plat_priv); |
| 1709 | |
| 1710 | spin_lock_irqsave(&plat_priv->event_lock, flags); |
| 1711 | |
| 1712 | while (!list_empty(&plat_priv->event_list)) { |
| 1713 | event = list_first_entry(&plat_priv->event_list, |
| 1714 | struct cnss_driver_event, list); |
| 1715 | list_del(&event->list); |
| 1716 | spin_unlock_irqrestore(&plat_priv->event_lock, flags); |
| 1717 | |
| 1718 | cnss_pr_dbg("Processing driver event: %s%s(%d), state: 0x%lx\n", |
| 1719 | cnss_driver_event_to_str(event->type), |
| 1720 | event->sync ? "-sync" : "", event->type, |
| 1721 | plat_priv->driver_state); |
| 1722 | |
| 1723 | switch (event->type) { |
| 1724 | case CNSS_DRIVER_EVENT_SERVER_ARRIVE: |
| 1725 | ret = cnss_wlfw_server_arrive(plat_priv); |
| 1726 | break; |
| 1727 | case CNSS_DRIVER_EVENT_SERVER_EXIT: |
| 1728 | ret = cnss_wlfw_server_exit(plat_priv); |
| 1729 | break; |
| 1730 | case CNSS_DRIVER_EVENT_REQUEST_MEM: |
| 1731 | ret = cnss_pci_alloc_fw_mem(plat_priv->bus_priv); |
| 1732 | if (ret) |
| 1733 | break; |
| 1734 | ret = cnss_wlfw_respond_mem_send_sync(plat_priv); |
| 1735 | break; |
| 1736 | case CNSS_DRIVER_EVENT_FW_MEM_READY: |
| 1737 | ret = cnss_fw_mem_ready_hdlr(plat_priv); |
| 1738 | break; |
| 1739 | case CNSS_DRIVER_EVENT_FW_READY: |
| 1740 | ret = cnss_fw_ready_hdlr(plat_priv); |
| 1741 | break; |
| 1742 | case CNSS_DRIVER_EVENT_COLD_BOOT_CAL_START: |
| 1743 | ret = cnss_cold_boot_cal_start_hdlr(plat_priv); |
| 1744 | break; |
| 1745 | case CNSS_DRIVER_EVENT_COLD_BOOT_CAL_DONE: |
| 1746 | ret = cnss_cold_boot_cal_done_hdlr(plat_priv); |
| 1747 | break; |
| 1748 | case CNSS_DRIVER_EVENT_REGISTER_DRIVER: |
| 1749 | ret = cnss_register_driver_hdlr(plat_priv, |
| 1750 | event->data); |
| 1751 | break; |
| 1752 | case CNSS_DRIVER_EVENT_UNREGISTER_DRIVER: |
| 1753 | ret = cnss_unregister_driver_hdlr(plat_priv); |
| 1754 | break; |
| 1755 | case CNSS_DRIVER_EVENT_RECOVERY: |
| 1756 | ret = cnss_driver_recovery_hdlr(plat_priv, |
| 1757 | event->data); |
| 1758 | break; |
| 1759 | case CNSS_DRIVER_EVENT_FORCE_FW_ASSERT: |
| 1760 | ret = cnss_force_fw_assert_hdlr(plat_priv); |
| 1761 | break; |
| 1762 | case CNSS_DRIVER_EVENT_POWER_UP: |
| 1763 | ret = cnss_power_up_hdlr(plat_priv); |
| 1764 | break; |
| 1765 | case CNSS_DRIVER_EVENT_POWER_DOWN: |
| 1766 | ret = cnss_power_down_hdlr(plat_priv); |
| 1767 | break; |
| 1768 | default: |
| 1769 | cnss_pr_err("Invalid driver event type: %d", |
| 1770 | event->type); |
| 1771 | kfree(event); |
| 1772 | spin_lock_irqsave(&plat_priv->event_lock, flags); |
| 1773 | continue; |
| 1774 | } |
| 1775 | |
| 1776 | spin_lock_irqsave(&plat_priv->event_lock, flags); |
| 1777 | if (event->sync) { |
| 1778 | event->ret = ret; |
| 1779 | complete(&event->complete); |
| 1780 | continue; |
| 1781 | } |
| 1782 | spin_unlock_irqrestore(&plat_priv->event_lock, flags); |
| 1783 | |
| 1784 | kfree(event); |
| 1785 | |
| 1786 | spin_lock_irqsave(&plat_priv->event_lock, flags); |
| 1787 | } |
| 1788 | spin_unlock_irqrestore(&plat_priv->event_lock, flags); |
| 1789 | |
| 1790 | cnss_pm_relax(plat_priv); |
| 1791 | } |
| 1792 | |
| 1793 | int cnss_register_subsys(struct cnss_plat_data *plat_priv) |
| 1794 | { |
| 1795 | int ret = 0; |
| 1796 | struct cnss_subsys_info *subsys_info; |
| 1797 | |
| 1798 | subsys_info = &plat_priv->subsys_info; |
| 1799 | |
| 1800 | switch (plat_priv->device_id) { |
| 1801 | case QCA6174_DEVICE_ID: |
| 1802 | subsys_info->subsys_desc.name = "AR6320"; |
| 1803 | break; |
| 1804 | case QCA6290_EMULATION_DEVICE_ID: |
| 1805 | case QCA6290_DEVICE_ID: |
| 1806 | subsys_info->subsys_desc.name = "QCA6290"; |
| 1807 | break; |
| 1808 | default: |
| 1809 | cnss_pr_err("Unknown device ID: 0x%lx\n", plat_priv->device_id); |
| 1810 | ret = -ENODEV; |
| 1811 | goto out; |
| 1812 | } |
| 1813 | |
| 1814 | subsys_info->subsys_desc.owner = THIS_MODULE; |
| 1815 | subsys_info->subsys_desc.powerup = cnss_subsys_powerup; |
| 1816 | subsys_info->subsys_desc.shutdown = cnss_subsys_shutdown; |
| 1817 | subsys_info->subsys_desc.ramdump = cnss_subsys_ramdump; |
| 1818 | subsys_info->subsys_desc.crash_shutdown = cnss_subsys_crash_shutdown; |
| 1819 | subsys_info->subsys_desc.dev = &plat_priv->plat_dev->dev; |
| 1820 | |
| 1821 | subsys_info->subsys_device = subsys_register(&subsys_info->subsys_desc); |
| 1822 | if (IS_ERR(subsys_info->subsys_device)) { |
| 1823 | ret = PTR_ERR(subsys_info->subsys_device); |
| 1824 | cnss_pr_err("Failed to register subsys, err = %d\n", ret); |
| 1825 | goto out; |
| 1826 | } |
| 1827 | |
| 1828 | subsys_info->subsys_handle = |
| 1829 | subsystem_get(subsys_info->subsys_desc.name); |
| 1830 | if (!subsys_info->subsys_handle) { |
| 1831 | cnss_pr_err("Failed to get subsys_handle!\n"); |
| 1832 | ret = -EINVAL; |
| 1833 | goto unregister_subsys; |
| 1834 | } else if (IS_ERR(subsys_info->subsys_handle)) { |
| 1835 | ret = PTR_ERR(subsys_info->subsys_handle); |
| 1836 | cnss_pr_err("Failed to do subsystem_get, err = %d\n", ret); |
| 1837 | goto unregister_subsys; |
| 1838 | } |
| 1839 | |
| 1840 | return 0; |
| 1841 | |
| 1842 | unregister_subsys: |
| 1843 | subsys_unregister(subsys_info->subsys_device); |
| 1844 | out: |
| 1845 | return ret; |
| 1846 | } |
| 1847 | |
| 1848 | void cnss_unregister_subsys(struct cnss_plat_data *plat_priv) |
| 1849 | { |
| 1850 | struct cnss_subsys_info *subsys_info; |
| 1851 | |
| 1852 | subsys_info = &plat_priv->subsys_info; |
| 1853 | subsystem_put(subsys_info->subsys_handle); |
| 1854 | subsys_unregister(subsys_info->subsys_device); |
| 1855 | } |
| 1856 | |
| 1857 | static int cnss_init_dump_entry(struct cnss_plat_data *plat_priv) |
| 1858 | { |
| 1859 | struct cnss_ramdump_info *ramdump_info; |
| 1860 | struct msm_dump_entry dump_entry; |
| 1861 | |
| 1862 | ramdump_info = &plat_priv->ramdump_info; |
| 1863 | ramdump_info->dump_data.addr = ramdump_info->ramdump_pa; |
| 1864 | ramdump_info->dump_data.len = ramdump_info->ramdump_size; |
| 1865 | ramdump_info->dump_data.version = CNSS_DUMP_FORMAT_VER; |
| 1866 | ramdump_info->dump_data.magic = CNSS_DUMP_MAGIC_VER_V2; |
| 1867 | strlcpy(ramdump_info->dump_data.name, CNSS_DUMP_NAME, |
| 1868 | sizeof(ramdump_info->dump_data.name)); |
| 1869 | dump_entry.id = MSM_DUMP_DATA_CNSS_WLAN; |
| 1870 | dump_entry.addr = virt_to_phys(&ramdump_info->dump_data); |
| 1871 | |
| 1872 | return msm_dump_data_register(MSM_DUMP_TABLE_APPS, &dump_entry); |
| 1873 | } |
| 1874 | |
| 1875 | static int cnss_qca6174_register_ramdump(struct cnss_plat_data *plat_priv) |
| 1876 | { |
| 1877 | int ret = 0; |
| 1878 | struct device *dev; |
| 1879 | struct cnss_subsys_info *subsys_info; |
| 1880 | struct cnss_ramdump_info *ramdump_info; |
| 1881 | u32 ramdump_size = 0; |
| 1882 | |
| 1883 | dev = &plat_priv->plat_dev->dev; |
| 1884 | subsys_info = &plat_priv->subsys_info; |
| 1885 | ramdump_info = &plat_priv->ramdump_info; |
| 1886 | |
| 1887 | if (of_property_read_u32(dev->of_node, "qcom,wlan-ramdump-dynamic", |
| 1888 | &ramdump_size) == 0) { |
| 1889 | ramdump_info->ramdump_va = dma_alloc_coherent(dev, ramdump_size, |
| 1890 | &ramdump_info->ramdump_pa, GFP_KERNEL); |
| 1891 | |
| 1892 | if (ramdump_info->ramdump_va) |
| 1893 | ramdump_info->ramdump_size = ramdump_size; |
| 1894 | } |
| 1895 | |
| 1896 | cnss_pr_dbg("ramdump va: %pK, pa: %pa\n", |
| 1897 | ramdump_info->ramdump_va, &ramdump_info->ramdump_pa); |
| 1898 | |
| 1899 | if (ramdump_info->ramdump_size == 0) { |
| 1900 | cnss_pr_info("Ramdump will not be collected"); |
| 1901 | goto out; |
| 1902 | } |
| 1903 | |
| 1904 | ret = cnss_init_dump_entry(plat_priv); |
| 1905 | if (ret) { |
| 1906 | cnss_pr_err("Failed to setup dump table, err = %d\n", ret); |
| 1907 | goto free_ramdump; |
| 1908 | } |
| 1909 | |
| 1910 | ramdump_info->ramdump_dev = create_ramdump_device( |
| 1911 | subsys_info->subsys_desc.name, subsys_info->subsys_desc.dev); |
| 1912 | if (!ramdump_info->ramdump_dev) { |
| 1913 | cnss_pr_err("Failed to create ramdump device!"); |
| 1914 | ret = -ENOMEM; |
| 1915 | goto free_ramdump; |
| 1916 | } |
| 1917 | |
| 1918 | return 0; |
| 1919 | free_ramdump: |
| 1920 | dma_free_coherent(dev, ramdump_info->ramdump_size, |
| 1921 | ramdump_info->ramdump_va, ramdump_info->ramdump_pa); |
| 1922 | out: |
| 1923 | return ret; |
| 1924 | } |
| 1925 | |
| 1926 | static void cnss_qca6174_unregister_ramdump(struct cnss_plat_data *plat_priv) |
| 1927 | { |
| 1928 | struct device *dev; |
| 1929 | struct cnss_ramdump_info *ramdump_info; |
| 1930 | |
| 1931 | dev = &plat_priv->plat_dev->dev; |
| 1932 | ramdump_info = &plat_priv->ramdump_info; |
| 1933 | |
| 1934 | if (ramdump_info->ramdump_dev) |
| 1935 | destroy_ramdump_device(ramdump_info->ramdump_dev); |
| 1936 | |
| 1937 | if (ramdump_info->ramdump_va) |
| 1938 | dma_free_coherent(dev, ramdump_info->ramdump_size, |
| 1939 | ramdump_info->ramdump_va, |
| 1940 | ramdump_info->ramdump_pa); |
| 1941 | } |
| 1942 | |
| 1943 | static int cnss_qca6290_register_ramdump(struct cnss_plat_data *plat_priv) |
| 1944 | { |
| 1945 | int ret = 0; |
| 1946 | struct cnss_subsys_info *subsys_info; |
| 1947 | struct cnss_ramdump_info_v2 *info_v2; |
| 1948 | struct cnss_dump_data *dump_data; |
| 1949 | struct msm_dump_entry dump_entry; |
| 1950 | struct device *dev = &plat_priv->plat_dev->dev; |
| 1951 | u32 ramdump_size = 0; |
| 1952 | |
| 1953 | subsys_info = &plat_priv->subsys_info; |
| 1954 | info_v2 = &plat_priv->ramdump_info_v2; |
| 1955 | dump_data = &info_v2->dump_data; |
| 1956 | |
| 1957 | if (of_property_read_u32(dev->of_node, "qcom,wlan-ramdump-dynamic", |
| 1958 | &ramdump_size) == 0) |
| 1959 | info_v2->ramdump_size = ramdump_size; |
| 1960 | |
| 1961 | cnss_pr_dbg("Ramdump size 0x%lx\n", info_v2->ramdump_size); |
| 1962 | |
| 1963 | info_v2->dump_data_vaddr = kzalloc(CNSS_DUMP_DESC_SIZE, GFP_KERNEL); |
| 1964 | if (!info_v2->dump_data_vaddr) |
| 1965 | return -ENOMEM; |
| 1966 | |
| 1967 | dump_data->paddr = virt_to_phys(info_v2->dump_data_vaddr); |
| 1968 | dump_data->version = CNSS_DUMP_FORMAT_VER_V2; |
| 1969 | dump_data->magic = CNSS_DUMP_MAGIC_VER_V2; |
| 1970 | dump_data->seg_version = CNSS_DUMP_SEG_VER; |
| 1971 | strlcpy(dump_data->name, CNSS_DUMP_NAME, |
| 1972 | sizeof(dump_data->name)); |
| 1973 | dump_entry.id = MSM_DUMP_DATA_CNSS_WLAN; |
| 1974 | dump_entry.addr = virt_to_phys(dump_data); |
| 1975 | |
| 1976 | ret = msm_dump_data_register(MSM_DUMP_TABLE_APPS, &dump_entry); |
| 1977 | if (ret) { |
| 1978 | cnss_pr_err("Failed to setup dump table, err = %d\n", ret); |
| 1979 | goto free_ramdump; |
| 1980 | } |
| 1981 | |
| 1982 | info_v2->ramdump_dev = |
| 1983 | create_ramdump_device(subsys_info->subsys_desc.name, |
| 1984 | subsys_info->subsys_desc.dev); |
| 1985 | if (!info_v2->ramdump_dev) { |
| 1986 | cnss_pr_err("Failed to create ramdump device!\n"); |
| 1987 | ret = -ENOMEM; |
| 1988 | goto free_ramdump; |
| 1989 | } |
| 1990 | |
| 1991 | return 0; |
| 1992 | |
| 1993 | free_ramdump: |
| 1994 | kfree(info_v2->dump_data_vaddr); |
| 1995 | info_v2->dump_data_vaddr = NULL; |
| 1996 | return ret; |
| 1997 | } |
| 1998 | |
| 1999 | static void cnss_qca6290_unregister_ramdump(struct cnss_plat_data *plat_priv) |
| 2000 | { |
| 2001 | struct cnss_ramdump_info_v2 *info_v2; |
| 2002 | |
| 2003 | info_v2 = &plat_priv->ramdump_info_v2; |
| 2004 | |
| 2005 | if (info_v2->ramdump_dev) |
| 2006 | destroy_ramdump_device(info_v2->ramdump_dev); |
| 2007 | |
| 2008 | kfree(info_v2->dump_data_vaddr); |
| 2009 | info_v2->dump_data_vaddr = NULL; |
| 2010 | info_v2->dump_data_valid = false; |
| 2011 | } |
| 2012 | |
| 2013 | int cnss_register_ramdump(struct cnss_plat_data *plat_priv) |
| 2014 | { |
| 2015 | int ret = 0; |
| 2016 | |
| 2017 | switch (plat_priv->device_id) { |
| 2018 | case QCA6174_DEVICE_ID: |
| 2019 | ret = cnss_qca6174_register_ramdump(plat_priv); |
| 2020 | break; |
| 2021 | case QCA6290_EMULATION_DEVICE_ID: |
| 2022 | case QCA6290_DEVICE_ID: |
| 2023 | ret = cnss_qca6290_register_ramdump(plat_priv); |
| 2024 | break; |
| 2025 | default: |
| 2026 | cnss_pr_err("Unknown device ID: 0x%lx\n", plat_priv->device_id); |
| 2027 | ret = -ENODEV; |
| 2028 | break; |
| 2029 | } |
| 2030 | return ret; |
| 2031 | } |
| 2032 | |
| 2033 | void cnss_unregister_ramdump(struct cnss_plat_data *plat_priv) |
| 2034 | { |
| 2035 | switch (plat_priv->device_id) { |
| 2036 | case QCA6174_DEVICE_ID: |
| 2037 | cnss_qca6174_unregister_ramdump(plat_priv); |
| 2038 | break; |
| 2039 | case QCA6290_EMULATION_DEVICE_ID: |
| 2040 | case QCA6290_DEVICE_ID: |
| 2041 | cnss_qca6290_unregister_ramdump(plat_priv); |
| 2042 | break; |
| 2043 | default: |
| 2044 | cnss_pr_err("Unknown device ID: 0x%lx\n", plat_priv->device_id); |
| 2045 | break; |
| 2046 | } |
| 2047 | } |
| 2048 | |
| 2049 | static int cnss_register_bus_scale(struct cnss_plat_data *plat_priv) |
| 2050 | { |
| 2051 | int ret = 0; |
| 2052 | struct cnss_bus_bw_info *bus_bw_info; |
| 2053 | |
| 2054 | bus_bw_info = &plat_priv->bus_bw_info; |
| 2055 | |
| 2056 | bus_bw_info->bus_scale_table = |
| 2057 | msm_bus_cl_get_pdata(plat_priv->plat_dev); |
| 2058 | if (bus_bw_info->bus_scale_table) { |
| 2059 | bus_bw_info->bus_client = |
| 2060 | msm_bus_scale_register_client( |
| 2061 | bus_bw_info->bus_scale_table); |
| 2062 | if (!bus_bw_info->bus_client) { |
| 2063 | cnss_pr_err("Failed to register bus scale client!\n"); |
| 2064 | ret = -EINVAL; |
| 2065 | goto out; |
| 2066 | } |
| 2067 | } |
| 2068 | |
| 2069 | return 0; |
| 2070 | out: |
| 2071 | return ret; |
| 2072 | } |
| 2073 | |
| 2074 | static void cnss_unregister_bus_scale(struct cnss_plat_data *plat_priv) |
| 2075 | { |
| 2076 | struct cnss_bus_bw_info *bus_bw_info; |
| 2077 | |
| 2078 | bus_bw_info = &plat_priv->bus_bw_info; |
| 2079 | |
| 2080 | if (bus_bw_info->bus_client) |
| 2081 | msm_bus_scale_unregister_client(bus_bw_info->bus_client); |
| 2082 | } |
| 2083 | |
| 2084 | static ssize_t cnss_fs_ready_store(struct device *dev, |
| 2085 | struct device_attribute *attr, |
| 2086 | const char *buf, |
| 2087 | size_t count) |
| 2088 | { |
| 2089 | int fs_ready = 0; |
| 2090 | struct cnss_plat_data *plat_priv = dev_get_drvdata(dev); |
| 2091 | |
| 2092 | if (sscanf(buf, "%du", &fs_ready) != 1) |
| 2093 | return -EINVAL; |
| 2094 | |
| 2095 | cnss_pr_dbg("File system is ready, fs_ready is %d, count is %zu\n", |
| 2096 | fs_ready, count); |
| 2097 | |
| 2098 | if (qmi_bypass) { |
| 2099 | cnss_pr_dbg("QMI is bypassed.\n"); |
| 2100 | return count; |
| 2101 | } |
| 2102 | |
| 2103 | if (!plat_priv) { |
| 2104 | cnss_pr_err("plat_priv is NULL!\n"); |
| 2105 | return count; |
| 2106 | } |
| 2107 | |
| 2108 | switch (plat_priv->device_id) { |
| 2109 | case QCA6290_EMULATION_DEVICE_ID: |
| 2110 | case QCA6290_DEVICE_ID: |
| 2111 | break; |
| 2112 | default: |
| 2113 | cnss_pr_err("Not supported for device ID 0x%lx\n", |
| 2114 | plat_priv->device_id); |
| 2115 | return count; |
| 2116 | } |
| 2117 | |
| 2118 | if (fs_ready == FILE_SYSTEM_READY) { |
| 2119 | cnss_driver_event_post(plat_priv, |
| 2120 | CNSS_DRIVER_EVENT_COLD_BOOT_CAL_START, |
| 2121 | CNSS_EVENT_SYNC, NULL); |
| 2122 | } |
| 2123 | |
| 2124 | return count; |
| 2125 | } |
| 2126 | |
| 2127 | static DEVICE_ATTR(fs_ready, 0220, NULL, cnss_fs_ready_store); |
| 2128 | |
| 2129 | static int cnss_create_sysfs(struct cnss_plat_data *plat_priv) |
| 2130 | { |
| 2131 | int ret = 0; |
| 2132 | |
| 2133 | ret = device_create_file(&plat_priv->plat_dev->dev, &dev_attr_fs_ready); |
| 2134 | if (ret) { |
| 2135 | cnss_pr_err("Failed to create device file, err = %d\n", ret); |
| 2136 | goto out; |
| 2137 | } |
| 2138 | |
| 2139 | return 0; |
| 2140 | out: |
| 2141 | return ret; |
| 2142 | } |
| 2143 | |
| 2144 | static void cnss_remove_sysfs(struct cnss_plat_data *plat_priv) |
| 2145 | { |
| 2146 | device_remove_file(&plat_priv->plat_dev->dev, &dev_attr_fs_ready); |
| 2147 | } |
| 2148 | |
| 2149 | static int cnss_event_work_init(struct cnss_plat_data *plat_priv) |
| 2150 | { |
| 2151 | spin_lock_init(&plat_priv->event_lock); |
| 2152 | plat_priv->event_wq = alloc_workqueue("cnss_driver_event", |
| 2153 | WQ_UNBOUND, 1); |
| 2154 | if (!plat_priv->event_wq) { |
| 2155 | cnss_pr_err("Failed to create event workqueue!\n"); |
| 2156 | return -EFAULT; |
| 2157 | } |
| 2158 | |
| 2159 | INIT_WORK(&plat_priv->event_work, cnss_driver_event_work); |
| 2160 | INIT_LIST_HEAD(&plat_priv->event_list); |
| 2161 | |
| 2162 | return 0; |
| 2163 | } |
| 2164 | |
| 2165 | static void cnss_event_work_deinit(struct cnss_plat_data *plat_priv) |
| 2166 | { |
| 2167 | destroy_workqueue(plat_priv->event_wq); |
| 2168 | } |
| 2169 | |
| 2170 | static const struct platform_device_id cnss_platform_id_table[] = { |
| 2171 | { .name = "qca6174", .driver_data = QCA6174_DEVICE_ID, }, |
| 2172 | { .name = "qca6290", .driver_data = QCA6290_DEVICE_ID, }, |
| 2173 | }; |
| 2174 | |
| 2175 | static const struct of_device_id cnss_of_match_table[] = { |
| 2176 | { |
| 2177 | .compatible = "qcom,cnss", |
| 2178 | .data = (void *)&cnss_platform_id_table[0]}, |
| 2179 | { |
| 2180 | .compatible = "qcom,cnss-qca6290", |
| 2181 | .data = (void *)&cnss_platform_id_table[1]}, |
| 2182 | { }, |
| 2183 | }; |
| 2184 | MODULE_DEVICE_TABLE(of, cnss_of_match_table); |
| 2185 | |
| 2186 | static int cnss_probe(struct platform_device *plat_dev) |
| 2187 | { |
| 2188 | int ret = 0; |
| 2189 | struct cnss_plat_data *plat_priv; |
| 2190 | const struct of_device_id *of_id; |
| 2191 | const struct platform_device_id *device_id; |
| 2192 | |
| 2193 | if (cnss_get_plat_priv(plat_dev)) { |
| 2194 | cnss_pr_err("Driver is already initialized!\n"); |
| 2195 | ret = -EEXIST; |
| 2196 | goto out; |
| 2197 | } |
| 2198 | |
| 2199 | of_id = of_match_device(cnss_of_match_table, &plat_dev->dev); |
| 2200 | if (!of_id || !of_id->data) { |
| 2201 | cnss_pr_err("Failed to find of match device!\n"); |
| 2202 | ret = -ENODEV; |
| 2203 | goto out; |
| 2204 | } |
| 2205 | |
| 2206 | device_id = of_id->data; |
| 2207 | |
| 2208 | plat_priv = devm_kzalloc(&plat_dev->dev, sizeof(*plat_priv), |
| 2209 | GFP_KERNEL); |
| 2210 | if (!plat_priv) { |
| 2211 | ret = -ENOMEM; |
| 2212 | goto out; |
| 2213 | } |
| 2214 | |
| 2215 | plat_priv->plat_dev = plat_dev; |
| 2216 | plat_priv->device_id = device_id->driver_data; |
| 2217 | cnss_set_plat_priv(plat_dev, plat_priv); |
| 2218 | platform_set_drvdata(plat_dev, plat_priv); |
| 2219 | |
| 2220 | ret = cnss_get_resources(plat_priv); |
| 2221 | if (ret) |
| 2222 | goto reset_ctx; |
| 2223 | |
| 2224 | if (!test_bit(SKIP_DEVICE_BOOT, &quirks)) { |
| 2225 | ret = cnss_power_on_device(plat_priv); |
| 2226 | if (ret) |
| 2227 | goto free_res; |
| 2228 | |
| 2229 | ret = cnss_pci_init(plat_priv); |
| 2230 | if (ret) |
| 2231 | goto power_off; |
| 2232 | } |
| 2233 | |
| 2234 | ret = cnss_register_esoc(plat_priv); |
| 2235 | if (ret) |
| 2236 | goto deinit_pci; |
| 2237 | |
| 2238 | ret = cnss_register_bus_scale(plat_priv); |
| 2239 | if (ret) |
| 2240 | goto unreg_esoc; |
| 2241 | |
| 2242 | ret = cnss_create_sysfs(plat_priv); |
| 2243 | if (ret) |
| 2244 | goto unreg_bus_scale; |
| 2245 | |
| 2246 | ret = cnss_event_work_init(plat_priv); |
| 2247 | if (ret) |
| 2248 | goto remove_sysfs; |
| 2249 | |
| 2250 | ret = cnss_qmi_init(plat_priv); |
| 2251 | if (ret) |
| 2252 | goto deinit_event_work; |
| 2253 | |
| 2254 | ret = cnss_debugfs_create(plat_priv); |
| 2255 | if (ret) |
| 2256 | goto deinit_qmi; |
| 2257 | |
| 2258 | setup_timer(&plat_priv->fw_boot_timer, |
| 2259 | fw_boot_timeout, (unsigned long)plat_priv); |
| 2260 | |
| 2261 | register_pm_notifier(&cnss_pm_notifier); |
| 2262 | |
| 2263 | ret = device_init_wakeup(&plat_dev->dev, true); |
| 2264 | if (ret) |
| 2265 | cnss_pr_err("Failed to init platform device wakeup source, err = %d\n", |
| 2266 | ret); |
| 2267 | |
| 2268 | init_completion(&plat_priv->power_up_complete); |
| 2269 | mutex_init(&plat_priv->dev_lock); |
| 2270 | |
| 2271 | cnss_pr_info("Platform driver probed successfully.\n"); |
| 2272 | |
| 2273 | return 0; |
| 2274 | |
| 2275 | deinit_qmi: |
| 2276 | cnss_qmi_deinit(plat_priv); |
| 2277 | deinit_event_work: |
| 2278 | cnss_event_work_deinit(plat_priv); |
| 2279 | remove_sysfs: |
| 2280 | cnss_remove_sysfs(plat_priv); |
| 2281 | unreg_bus_scale: |
| 2282 | cnss_unregister_bus_scale(plat_priv); |
| 2283 | unreg_esoc: |
| 2284 | cnss_unregister_esoc(plat_priv); |
| 2285 | deinit_pci: |
| 2286 | if (!test_bit(SKIP_DEVICE_BOOT, &quirks)) |
| 2287 | cnss_pci_deinit(plat_priv); |
| 2288 | power_off: |
| 2289 | if (!test_bit(SKIP_DEVICE_BOOT, &quirks)) |
| 2290 | cnss_power_off_device(plat_priv); |
| 2291 | free_res: |
| 2292 | cnss_put_resources(plat_priv); |
| 2293 | reset_ctx: |
| 2294 | platform_set_drvdata(plat_dev, NULL); |
| 2295 | cnss_set_plat_priv(plat_dev, NULL); |
| 2296 | out: |
| 2297 | return ret; |
| 2298 | } |
| 2299 | |
| 2300 | static int cnss_remove(struct platform_device *plat_dev) |
| 2301 | { |
| 2302 | struct cnss_plat_data *plat_priv = platform_get_drvdata(plat_dev); |
| 2303 | |
| 2304 | complete_all(&plat_priv->power_up_complete); |
| 2305 | device_init_wakeup(&plat_dev->dev, false); |
| 2306 | unregister_pm_notifier(&cnss_pm_notifier); |
| 2307 | del_timer(&plat_priv->fw_boot_timer); |
| 2308 | cnss_debugfs_destroy(plat_priv); |
| 2309 | cnss_qmi_deinit(plat_priv); |
| 2310 | cnss_event_work_deinit(plat_priv); |
| 2311 | cnss_remove_sysfs(plat_priv); |
| 2312 | cnss_unregister_bus_scale(plat_priv); |
| 2313 | cnss_unregister_esoc(plat_priv); |
| 2314 | cnss_pci_deinit(plat_priv); |
| 2315 | cnss_put_resources(plat_priv); |
| 2316 | platform_set_drvdata(plat_dev, NULL); |
| 2317 | plat_env = NULL; |
| 2318 | |
| 2319 | return 0; |
| 2320 | } |
| 2321 | |
| 2322 | static struct platform_driver cnss_platform_driver = { |
| 2323 | .probe = cnss_probe, |
| 2324 | .remove = cnss_remove, |
| 2325 | .driver = { |
| 2326 | .name = "cnss2", |
| 2327 | .owner = THIS_MODULE, |
| 2328 | .of_match_table = cnss_of_match_table, |
| 2329 | #ifdef CONFIG_CNSS_ASYNC |
| 2330 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
| 2331 | #endif |
| 2332 | }, |
| 2333 | }; |
| 2334 | |
| 2335 | static int __init cnss_initialize(void) |
| 2336 | { |
| 2337 | int ret = 0; |
| 2338 | |
| 2339 | cnss_debug_init(); |
| 2340 | ret = platform_driver_register(&cnss_platform_driver); |
| 2341 | if (ret) |
| 2342 | cnss_debug_deinit(); |
| 2343 | |
| 2344 | return ret; |
| 2345 | } |
| 2346 | |
| 2347 | static void __exit cnss_exit(void) |
| 2348 | { |
| 2349 | platform_driver_unregister(&cnss_platform_driver); |
| 2350 | cnss_debug_deinit(); |
| 2351 | } |
| 2352 | |
| 2353 | module_init(cnss_initialize); |
| 2354 | module_exit(cnss_exit); |
| 2355 | |
| 2356 | MODULE_LICENSE("GPL v2"); |
| 2357 | MODULE_DESCRIPTION("CNSS2 Platform Driver"); |