Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 2 | /* |
| 3 | * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved. |
| 4 | */ |
| 5 | |
| 6 | #define pr_fmt(fmt) "icnss2: " fmt |
| 7 | |
| 8 | #include <linux/of_address.h> |
| 9 | #include <linux/clk.h> |
| 10 | #include <linux/iommu.h> |
| 11 | #include <linux/export.h> |
| 12 | #include <linux/err.h> |
| 13 | #include <linux/of.h> |
| 14 | #include <linux/of_device.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/io.h> |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/debugfs.h> |
| 20 | #include <linux/seq_file.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <linux/regulator/consumer.h> |
| 23 | #include <linux/interrupt.h> |
| 24 | #include <linux/sched.h> |
| 25 | #include <linux/delay.h> |
| 26 | #include <linux/dma-mapping.h> |
| 27 | #include <linux/thread_info.h> |
| 28 | #include <linux/uaccess.h> |
| 29 | #include <linux/adc-tm-clients.h> |
| 30 | #include <linux/iio/consumer.h> |
| 31 | #include <linux/etherdevice.h> |
| 32 | #include <linux/of.h> |
| 33 | #include <linux/of_irq.h> |
| 34 | #include <linux/soc/qcom/qmi.h> |
| 35 | #include <linux/sysfs.h> |
| 36 | #include <soc/qcom/memory_dump.h> |
| 37 | #include <soc/qcom/secure_buffer.h> |
| 38 | #include <soc/qcom/subsystem_notif.h> |
| 39 | #include <soc/qcom/subsystem_restart.h> |
| 40 | #include <soc/qcom/socinfo.h> |
| 41 | #include <soc/qcom/ramdump.h> |
| 42 | #include "main.h" |
| 43 | #include "qmi.h" |
| 44 | #include "debug.h" |
| 45 | #include "power.h" |
Mohammed Siddiq | 049053c | 2020-04-07 21:33:26 +0530 | [diff] [blame] | 46 | #include "genl.h" |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 47 | |
| 48 | #define MAX_PROP_SIZE 32 |
| 49 | #define NUM_LOG_PAGES 10 |
| 50 | #define NUM_LOG_LONG_PAGES 4 |
| 51 | #define ICNSS_MAGIC 0x5abc5abc |
| 52 | |
| 53 | #define ICNSS_SERVICE_LOCATION_CLIENT_NAME "ICNSS-WLAN" |
| 54 | #define ICNSS_WLAN_SERVICE_NAME "wlan/fw" |
| 55 | #define ICNSS_DEFAULT_FEATURE_MASK 0x01 |
| 56 | |
| 57 | #define ICNSS_QUIRKS_DEFAULT BIT(FW_REJUVENATE_ENABLE) |
| 58 | #define ICNSS_MAX_PROBE_CNT 2 |
| 59 | |
| 60 | #define ICNSS_BDF_TYPE_DEFAULT ICNSS_BDF_ELF |
| 61 | |
| 62 | #define PROBE_TIMEOUT 15000 |
| 63 | #define WLFW_TIMEOUT msecs_to_jiffies(3000) |
| 64 | |
| 65 | static struct icnss_priv *penv; |
| 66 | |
| 67 | uint64_t dynamic_feature_mask = ICNSS_DEFAULT_FEATURE_MASK; |
| 68 | |
| 69 | #define ICNSS_EVENT_PENDING 2989 |
| 70 | |
| 71 | #define ICNSS_EVENT_SYNC BIT(0) |
| 72 | #define ICNSS_EVENT_UNINTERRUPTIBLE BIT(1) |
| 73 | #define ICNSS_EVENT_SYNC_UNINTERRUPTIBLE (ICNSS_EVENT_UNINTERRUPTIBLE | \ |
| 74 | ICNSS_EVENT_SYNC) |
| 75 | |
| 76 | |
| 77 | enum icnss_pdr_cause_index { |
| 78 | ICNSS_FW_CRASH, |
| 79 | ICNSS_ROOT_PD_CRASH, |
| 80 | ICNSS_ROOT_PD_SHUTDOWN, |
| 81 | ICNSS_HOST_ERROR, |
| 82 | }; |
| 83 | |
| 84 | static const char * const icnss_pdr_cause[] = { |
| 85 | [ICNSS_FW_CRASH] = "FW crash", |
| 86 | [ICNSS_ROOT_PD_CRASH] = "Root PD crashed", |
| 87 | [ICNSS_ROOT_PD_SHUTDOWN] = "Root PD shutdown", |
| 88 | [ICNSS_HOST_ERROR] = "Host error", |
| 89 | }; |
| 90 | |
| 91 | static void icnss_set_plat_priv(struct icnss_priv *priv) |
| 92 | { |
| 93 | penv = priv; |
| 94 | } |
| 95 | |
| 96 | static struct icnss_priv *icnss_get_plat_priv() |
| 97 | { |
| 98 | return penv; |
| 99 | } |
| 100 | |
| 101 | static ssize_t icnss_sysfs_store(struct kobject *kobj, |
| 102 | struct kobj_attribute *attr, |
| 103 | const char *buf, size_t count) |
| 104 | { |
| 105 | struct icnss_priv *priv = icnss_get_plat_priv(); |
| 106 | |
| 107 | atomic_set(&priv->is_shutdown, true); |
| 108 | icnss_pr_dbg("Received shutdown indication"); |
| 109 | return count; |
| 110 | } |
| 111 | |
| 112 | static struct kobj_attribute icnss_sysfs_attribute = |
| 113 | __ATTR(shutdown, 0660, NULL, icnss_sysfs_store); |
| 114 | |
| 115 | static void icnss_pm_stay_awake(struct icnss_priv *priv) |
| 116 | { |
| 117 | if (atomic_inc_return(&priv->pm_count) != 1) |
| 118 | return; |
| 119 | |
| 120 | icnss_pr_vdbg("PM stay awake, state: 0x%lx, count: %d\n", priv->state, |
| 121 | atomic_read(&priv->pm_count)); |
| 122 | |
| 123 | pm_stay_awake(&priv->pdev->dev); |
| 124 | |
| 125 | priv->stats.pm_stay_awake++; |
| 126 | } |
| 127 | |
| 128 | static void icnss_pm_relax(struct icnss_priv *priv) |
| 129 | { |
| 130 | int r = atomic_dec_return(&priv->pm_count); |
| 131 | |
| 132 | WARN_ON(r < 0); |
| 133 | |
| 134 | if (r != 0) |
| 135 | return; |
| 136 | |
| 137 | icnss_pr_vdbg("PM relax, state: 0x%lx, count: %d\n", priv->state, |
| 138 | atomic_read(&priv->pm_count)); |
| 139 | |
| 140 | pm_relax(&priv->pdev->dev); |
| 141 | priv->stats.pm_relax++; |
| 142 | } |
| 143 | |
| 144 | char *icnss_driver_event_to_str(enum icnss_driver_event_type type) |
| 145 | { |
| 146 | switch (type) { |
| 147 | case ICNSS_DRIVER_EVENT_SERVER_ARRIVE: |
| 148 | return "SERVER_ARRIVE"; |
| 149 | case ICNSS_DRIVER_EVENT_SERVER_EXIT: |
| 150 | return "SERVER_EXIT"; |
| 151 | case ICNSS_DRIVER_EVENT_FW_READY_IND: |
| 152 | return "FW_READY"; |
| 153 | case ICNSS_DRIVER_EVENT_REGISTER_DRIVER: |
| 154 | return "REGISTER_DRIVER"; |
| 155 | case ICNSS_DRIVER_EVENT_UNREGISTER_DRIVER: |
| 156 | return "UNREGISTER_DRIVER"; |
| 157 | case ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN: |
| 158 | return "PD_SERVICE_DOWN"; |
| 159 | case ICNSS_DRIVER_EVENT_FW_EARLY_CRASH_IND: |
| 160 | return "FW_EARLY_CRASH_IND"; |
| 161 | case ICNSS_DRIVER_EVENT_IDLE_SHUTDOWN: |
| 162 | return "IDLE_SHUTDOWN"; |
| 163 | case ICNSS_DRIVER_EVENT_IDLE_RESTART: |
| 164 | return "IDLE_RESTART"; |
| 165 | case ICNSS_DRIVER_EVENT_FW_INIT_DONE_IND: |
| 166 | return "FW_INIT_DONE"; |
Mohammed Siddiq | 049053c | 2020-04-07 21:33:26 +0530 | [diff] [blame] | 167 | case ICNSS_DRIVER_EVENT_QDSS_TRACE_REQ_MEM: |
| 168 | return "QDSS_TRACE_REQ_MEM"; |
| 169 | case ICNSS_DRIVER_EVENT_QDSS_TRACE_SAVE: |
| 170 | return "QDSS_TRACE_SAVE"; |
| 171 | case ICNSS_DRIVER_EVENT_QDSS_TRACE_FREE: |
| 172 | return "QDSS_TRACE_FREE"; |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 173 | case ICNSS_DRIVER_EVENT_MAX: |
| 174 | return "EVENT_MAX"; |
| 175 | } |
| 176 | |
| 177 | return "UNKNOWN"; |
| 178 | }; |
| 179 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 180 | char *icnss_soc_wake_event_to_str(enum icnss_soc_wake_event_type type) |
| 181 | { |
| 182 | switch (type) { |
| 183 | case ICNSS_SOC_WAKE_REQUEST_EVENT: |
| 184 | return "SOC_WAKE_REQUEST"; |
| 185 | case ICNSS_SOC_WAKE_RELEASE_EVENT: |
| 186 | return "SOC_WAKE_RELEASE"; |
| 187 | case ICNSS_SOC_WAKE_EVENT_MAX: |
| 188 | return "SOC_EVENT_MAX"; |
| 189 | } |
| 190 | |
| 191 | return "UNKNOWN"; |
| 192 | }; |
| 193 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 194 | int icnss_driver_event_post(struct icnss_priv *priv, |
| 195 | enum icnss_driver_event_type type, |
| 196 | u32 flags, void *data) |
| 197 | { |
| 198 | struct icnss_driver_event *event; |
| 199 | unsigned long irq_flags; |
| 200 | int gfp = GFP_KERNEL; |
| 201 | int ret = 0; |
| 202 | |
| 203 | if (!priv) |
| 204 | return -ENODEV; |
| 205 | |
| 206 | icnss_pr_dbg("Posting event: %s(%d), %s, flags: 0x%x, state: 0x%lx\n", |
| 207 | icnss_driver_event_to_str(type), type, current->comm, |
| 208 | flags, priv->state); |
| 209 | |
| 210 | if (type >= ICNSS_DRIVER_EVENT_MAX) { |
| 211 | icnss_pr_err("Invalid Event type: %d, can't post", type); |
| 212 | return -EINVAL; |
| 213 | } |
| 214 | |
| 215 | if (in_interrupt() || irqs_disabled()) |
| 216 | gfp = GFP_ATOMIC; |
| 217 | |
| 218 | event = kzalloc(sizeof(*event), gfp); |
| 219 | if (event == NULL) |
| 220 | return -ENOMEM; |
| 221 | |
| 222 | icnss_pm_stay_awake(priv); |
| 223 | |
| 224 | event->type = type; |
| 225 | event->data = data; |
| 226 | init_completion(&event->complete); |
| 227 | event->ret = ICNSS_EVENT_PENDING; |
| 228 | event->sync = !!(flags & ICNSS_EVENT_SYNC); |
| 229 | |
| 230 | spin_lock_irqsave(&priv->event_lock, irq_flags); |
| 231 | list_add_tail(&event->list, &priv->event_list); |
| 232 | spin_unlock_irqrestore(&priv->event_lock, irq_flags); |
| 233 | |
| 234 | priv->stats.events[type].posted++; |
| 235 | queue_work(priv->event_wq, &priv->event_work); |
| 236 | |
| 237 | if (!(flags & ICNSS_EVENT_SYNC)) |
| 238 | goto out; |
| 239 | |
| 240 | if (flags & ICNSS_EVENT_UNINTERRUPTIBLE) |
| 241 | wait_for_completion(&event->complete); |
| 242 | else |
| 243 | ret = wait_for_completion_interruptible(&event->complete); |
| 244 | |
| 245 | icnss_pr_dbg("Completed event: %s(%d), state: 0x%lx, ret: %d/%d\n", |
| 246 | icnss_driver_event_to_str(type), type, priv->state, ret, |
| 247 | event->ret); |
| 248 | |
| 249 | spin_lock_irqsave(&priv->event_lock, irq_flags); |
| 250 | if (ret == -ERESTARTSYS && event->ret == ICNSS_EVENT_PENDING) { |
| 251 | event->sync = false; |
| 252 | spin_unlock_irqrestore(&priv->event_lock, irq_flags); |
| 253 | ret = -EINTR; |
| 254 | goto out; |
| 255 | } |
| 256 | spin_unlock_irqrestore(&priv->event_lock, irq_flags); |
| 257 | |
| 258 | ret = event->ret; |
| 259 | kfree(event); |
| 260 | |
| 261 | out: |
| 262 | icnss_pm_relax(priv); |
| 263 | return ret; |
| 264 | } |
| 265 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 266 | int icnss_soc_wake_event_post(struct icnss_priv *priv, |
| 267 | enum icnss_soc_wake_event_type type, |
| 268 | u32 flags, void *data) |
| 269 | { |
| 270 | struct icnss_soc_wake_event *event; |
| 271 | unsigned long irq_flags; |
| 272 | int gfp = GFP_KERNEL; |
| 273 | int ret = 0; |
| 274 | |
| 275 | if (!priv) |
| 276 | return -ENODEV; |
| 277 | |
| 278 | icnss_pr_dbg("Posting event: %s(%d), %s, flags: 0x%x, state: 0x%lx\n", |
| 279 | icnss_soc_wake_event_to_str(type), type, current->comm, |
| 280 | flags, priv->state); |
| 281 | |
| 282 | if (type >= ICNSS_SOC_WAKE_EVENT_MAX) { |
| 283 | icnss_pr_err("Invalid Event type: %d, can't post", type); |
| 284 | return -EINVAL; |
| 285 | } |
| 286 | |
| 287 | if (in_interrupt() || irqs_disabled()) |
| 288 | gfp = GFP_ATOMIC; |
| 289 | |
| 290 | event = kzalloc(sizeof(*event), gfp); |
| 291 | if (!event) |
| 292 | return -ENOMEM; |
| 293 | |
| 294 | icnss_pm_stay_awake(priv); |
| 295 | |
| 296 | event->type = type; |
| 297 | event->data = data; |
| 298 | init_completion(&event->complete); |
| 299 | event->ret = ICNSS_EVENT_PENDING; |
| 300 | event->sync = !!(flags & ICNSS_EVENT_SYNC); |
| 301 | |
| 302 | spin_lock_irqsave(&priv->soc_wake_msg_lock, irq_flags); |
| 303 | list_add_tail(&event->list, &priv->soc_wake_msg_list); |
| 304 | spin_unlock_irqrestore(&priv->soc_wake_msg_lock, irq_flags); |
| 305 | |
| 306 | priv->stats.soc_wake_events[type].posted++; |
| 307 | queue_work(priv->soc_wake_wq, &priv->soc_wake_msg_work); |
| 308 | |
| 309 | if (!(flags & ICNSS_EVENT_SYNC)) |
| 310 | goto out; |
| 311 | |
| 312 | if (flags & ICNSS_EVENT_UNINTERRUPTIBLE) |
| 313 | wait_for_completion(&event->complete); |
| 314 | else |
| 315 | ret = wait_for_completion_interruptible(&event->complete); |
| 316 | |
| 317 | icnss_pr_dbg("Completed event: %s(%d), state: 0x%lx, ret: %d/%d\n", |
| 318 | icnss_soc_wake_event_to_str(type), type, priv->state, ret, |
| 319 | event->ret); |
| 320 | |
| 321 | spin_lock_irqsave(&priv->soc_wake_msg_lock, irq_flags); |
| 322 | if (ret == -ERESTARTSYS && event->ret == ICNSS_EVENT_PENDING) { |
| 323 | event->sync = false; |
| 324 | spin_unlock_irqrestore(&priv->soc_wake_msg_lock, irq_flags); |
| 325 | ret = -EINTR; |
| 326 | goto out; |
| 327 | } |
| 328 | spin_unlock_irqrestore(&priv->soc_wake_msg_lock, irq_flags); |
| 329 | |
| 330 | ret = event->ret; |
| 331 | kfree(event); |
| 332 | |
| 333 | out: |
| 334 | icnss_pm_relax(priv); |
| 335 | return ret; |
| 336 | } |
| 337 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 338 | bool icnss_is_fw_ready(void) |
| 339 | { |
| 340 | if (!penv) |
| 341 | return false; |
| 342 | else |
| 343 | return test_bit(ICNSS_FW_READY, &penv->state); |
| 344 | } |
| 345 | EXPORT_SYMBOL(icnss_is_fw_ready); |
| 346 | |
| 347 | void icnss_block_shutdown(bool status) |
| 348 | { |
| 349 | if (!penv) |
| 350 | return; |
| 351 | |
| 352 | if (status) { |
| 353 | set_bit(ICNSS_BLOCK_SHUTDOWN, &penv->state); |
| 354 | reinit_completion(&penv->unblock_shutdown); |
| 355 | } else { |
| 356 | clear_bit(ICNSS_BLOCK_SHUTDOWN, &penv->state); |
| 357 | complete(&penv->unblock_shutdown); |
| 358 | } |
| 359 | } |
| 360 | EXPORT_SYMBOL(icnss_block_shutdown); |
| 361 | |
| 362 | bool icnss_is_fw_down(void) |
| 363 | { |
| 364 | |
| 365 | struct icnss_priv *priv = icnss_get_plat_priv(); |
| 366 | |
| 367 | if (!priv) |
| 368 | return false; |
| 369 | |
| 370 | return test_bit(ICNSS_FW_DOWN, &priv->state) || |
| 371 | test_bit(ICNSS_PD_RESTART, &priv->state) || |
| 372 | test_bit(ICNSS_REJUVENATE, &priv->state); |
| 373 | } |
| 374 | EXPORT_SYMBOL(icnss_is_fw_down); |
| 375 | |
| 376 | bool icnss_is_rejuvenate(void) |
| 377 | { |
| 378 | if (!penv) |
| 379 | return false; |
| 380 | else |
| 381 | return test_bit(ICNSS_REJUVENATE, &penv->state); |
| 382 | } |
| 383 | EXPORT_SYMBOL(icnss_is_rejuvenate); |
| 384 | |
| 385 | bool icnss_is_pdr(void) |
| 386 | { |
| 387 | if (!penv) |
| 388 | return false; |
| 389 | else |
| 390 | return test_bit(ICNSS_PDR, &penv->state); |
| 391 | } |
| 392 | EXPORT_SYMBOL(icnss_is_pdr); |
| 393 | |
| 394 | static irqreturn_t fw_error_fatal_handler(int irq, void *ctx) |
| 395 | { |
| 396 | struct icnss_priv *priv = ctx; |
| 397 | |
| 398 | if (priv) |
| 399 | priv->force_err_fatal = true; |
| 400 | |
| 401 | icnss_pr_err("Received force error fatal request from FW\n"); |
| 402 | |
| 403 | return IRQ_HANDLED; |
| 404 | } |
| 405 | |
| 406 | static irqreturn_t fw_crash_indication_handler(int irq, void *ctx) |
| 407 | { |
| 408 | struct icnss_priv *priv = ctx; |
| 409 | struct icnss_uevent_fw_down_data fw_down_data = {0}; |
| 410 | |
| 411 | icnss_pr_err("Received early crash indication from FW\n"); |
| 412 | |
| 413 | if (priv) { |
| 414 | set_bit(ICNSS_FW_DOWN, &priv->state); |
| 415 | icnss_ignore_fw_timeout(true); |
| 416 | |
| 417 | if (test_bit(ICNSS_FW_READY, &priv->state)) { |
| 418 | fw_down_data.crashed = true; |
| 419 | icnss_call_driver_uevent(priv, ICNSS_UEVENT_FW_DOWN, |
| 420 | &fw_down_data); |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | icnss_driver_event_post(priv, ICNSS_DRIVER_EVENT_FW_EARLY_CRASH_IND, |
| 425 | 0, NULL); |
| 426 | |
| 427 | return IRQ_HANDLED; |
| 428 | } |
| 429 | |
| 430 | static void register_fw_error_notifications(struct device *dev) |
| 431 | { |
| 432 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 433 | struct device_node *dev_node; |
| 434 | int irq = 0, ret = 0; |
| 435 | |
| 436 | if (!priv) |
| 437 | return; |
| 438 | |
| 439 | dev_node = of_find_node_by_name(NULL, "qcom,smp2p_map_wlan_1_in"); |
| 440 | if (!dev_node) { |
| 441 | icnss_pr_err("Failed to get smp2p node for force-fatal-error\n"); |
| 442 | return; |
| 443 | } |
| 444 | |
| 445 | icnss_pr_dbg("smp2p node->name=%s\n", dev_node->name); |
| 446 | |
| 447 | if (strcmp("qcom,smp2p_map_wlan_1_in", dev_node->name) == 0) { |
| 448 | ret = irq = of_irq_get_byname(dev_node, |
| 449 | "qcom,smp2p-force-fatal-error"); |
| 450 | if (ret < 0) { |
| 451 | icnss_pr_err("Unable to get force-fatal-error irq %d\n", |
| 452 | irq); |
| 453 | return; |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | ret = devm_request_threaded_irq(dev, irq, NULL, fw_error_fatal_handler, |
| 458 | IRQF_ONESHOT | IRQF_TRIGGER_RISING, |
| 459 | "wlanfw-err", priv); |
| 460 | if (ret < 0) { |
| 461 | icnss_pr_err("Unable to register for error fatal IRQ handler %d ret = %d", |
| 462 | irq, ret); |
| 463 | return; |
| 464 | } |
| 465 | icnss_pr_dbg("FW force error fatal handler registered irq = %d\n", irq); |
| 466 | priv->fw_error_fatal_irq = irq; |
| 467 | } |
| 468 | |
| 469 | static void register_early_crash_notifications(struct device *dev) |
| 470 | { |
| 471 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 472 | struct device_node *dev_node; |
| 473 | int irq = 0, ret = 0; |
| 474 | |
| 475 | if (!priv) |
| 476 | return; |
| 477 | |
| 478 | dev_node = of_find_node_by_name(NULL, "qcom,smp2p_map_wlan_1_in"); |
| 479 | if (!dev_node) { |
| 480 | icnss_pr_err("Failed to get smp2p node for early-crash-ind\n"); |
| 481 | return; |
| 482 | } |
| 483 | |
| 484 | icnss_pr_dbg("smp2p node->name=%s\n", dev_node->name); |
| 485 | |
| 486 | if (strcmp("qcom,smp2p_map_wlan_1_in", dev_node->name) == 0) { |
| 487 | ret = irq = of_irq_get_byname(dev_node, |
| 488 | "qcom,smp2p-early-crash-ind"); |
| 489 | if (ret < 0) { |
| 490 | icnss_pr_err("Unable to get early-crash-ind irq %d\n", |
| 491 | irq); |
| 492 | return; |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | ret = devm_request_threaded_irq(dev, irq, NULL, |
| 497 | fw_crash_indication_handler, |
| 498 | IRQF_ONESHOT | IRQF_TRIGGER_RISING, |
| 499 | "wlanfw-early-crash-ind", priv); |
| 500 | if (ret < 0) { |
| 501 | icnss_pr_err("Unable to register for early crash indication IRQ handler %d ret = %d", |
| 502 | irq, ret); |
| 503 | return; |
| 504 | } |
| 505 | icnss_pr_dbg("FW crash indication handler registered irq = %d\n", irq); |
| 506 | priv->fw_early_crash_irq = irq; |
| 507 | } |
| 508 | |
| 509 | int icnss_call_driver_uevent(struct icnss_priv *priv, |
| 510 | enum icnss_uevent uevent, void *data) |
| 511 | { |
| 512 | struct icnss_uevent_data uevent_data; |
| 513 | |
| 514 | if (!priv->ops || !priv->ops->uevent) |
| 515 | return 0; |
| 516 | |
| 517 | icnss_pr_dbg("Calling driver uevent state: 0x%lx, uevent: %d\n", |
| 518 | priv->state, uevent); |
| 519 | |
| 520 | uevent_data.uevent = uevent; |
| 521 | uevent_data.data = data; |
| 522 | |
| 523 | return priv->ops->uevent(&priv->pdev->dev, &uevent_data); |
| 524 | } |
| 525 | |
| 526 | static int icnss_driver_event_server_arrive(struct icnss_priv *priv, |
| 527 | void *data) |
| 528 | { |
| 529 | int ret = 0; |
| 530 | bool ignore_assert = false; |
| 531 | |
| 532 | if (!priv) |
| 533 | return -ENODEV; |
| 534 | |
| 535 | set_bit(ICNSS_WLFW_EXISTS, &priv->state); |
| 536 | clear_bit(ICNSS_FW_DOWN, &priv->state); |
Sandeep Singh | eac7ac4 | 2020-05-28 12:08:06 +0530 | [diff] [blame^] | 537 | clear_bit(ICNSS_FW_READY, &priv->state); |
| 538 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 539 | icnss_ignore_fw_timeout(false); |
| 540 | |
| 541 | if (test_bit(ICNSS_WLFW_CONNECTED, &penv->state)) { |
| 542 | icnss_pr_err("QMI Server already in Connected State\n"); |
| 543 | ICNSS_ASSERT(0); |
| 544 | } |
| 545 | |
| 546 | ret = icnss_connect_to_fw_server(priv, data); |
| 547 | if (ret) |
| 548 | goto fail; |
| 549 | |
| 550 | set_bit(ICNSS_WLFW_CONNECTED, &priv->state); |
| 551 | |
| 552 | ret = icnss_hw_power_on(priv); |
| 553 | if (ret) |
| 554 | goto clear_server; |
| 555 | |
| 556 | ret = wlfw_ind_register_send_sync_msg(priv); |
| 557 | if (ret < 0) { |
| 558 | if (ret == -EALREADY) { |
| 559 | ret = 0; |
| 560 | goto qmi_registered; |
| 561 | } |
| 562 | ignore_assert = true; |
| 563 | goto err_power_on; |
| 564 | } |
| 565 | |
| 566 | if (priv->device_id == WCN6750_DEVICE_ID) { |
| 567 | ret = wlfw_host_cap_send_sync(priv); |
| 568 | if (ret < 0) |
| 569 | goto err_power_on; |
| 570 | } |
| 571 | |
| 572 | if (priv->device_id == ADRASTEA_DEVICE_ID) { |
| 573 | if (!priv->msa_va) { |
| 574 | icnss_pr_err("Invalid MSA address\n"); |
| 575 | ret = -EINVAL; |
| 576 | goto err_power_on; |
| 577 | } |
| 578 | |
| 579 | ret = wlfw_msa_mem_info_send_sync_msg(priv); |
| 580 | if (ret < 0) { |
| 581 | ignore_assert = true; |
| 582 | goto err_power_on; |
| 583 | } |
| 584 | |
| 585 | ret = wlfw_msa_ready_send_sync_msg(priv); |
| 586 | if (ret < 0) { |
| 587 | ignore_assert = true; |
| 588 | goto err_power_on; |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | ret = wlfw_cap_send_sync_msg(priv); |
| 593 | if (ret < 0) { |
| 594 | ignore_assert = true; |
| 595 | goto err_power_on; |
| 596 | } |
| 597 | |
| 598 | if (priv->device_id == WCN6750_DEVICE_ID) { |
| 599 | ret = wlfw_device_info_send_msg(priv); |
| 600 | if (ret < 0) { |
| 601 | ignore_assert = true; |
| 602 | goto err_power_on; |
| 603 | } |
| 604 | |
Naman Padhiar | d65b3d5 | 2020-02-29 00:04:05 +0530 | [diff] [blame] | 605 | priv->mem_base_va = devm_ioremap(&priv->pdev->dev, |
| 606 | priv->mem_base_pa, |
| 607 | priv->mem_base_size); |
| 608 | if (!priv->mem_base_va) { |
| 609 | icnss_pr_err("Ioremap failed for bar address\n"); |
| 610 | goto err_power_on; |
| 611 | } |
| 612 | |
| 613 | icnss_pr_dbg("MEM_BASE pa: %pa, va: 0x%pK\n", |
| 614 | &priv->mem_base_pa, |
| 615 | priv->mem_base_va); |
| 616 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 617 | icnss_wlfw_bdf_dnld_send_sync(priv, ICNSS_BDF_REGDB); |
| 618 | |
| 619 | ret = icnss_wlfw_bdf_dnld_send_sync(priv, |
| 620 | priv->ctrl_params.bdf_type); |
| 621 | |
| 622 | } |
| 623 | |
| 624 | if (priv->device_id == ADRASTEA_DEVICE_ID) { |
| 625 | wlfw_dynamic_feature_mask_send_sync_msg(priv, |
| 626 | dynamic_feature_mask); |
| 627 | } |
| 628 | |
| 629 | if (!priv->fw_error_fatal_irq) |
| 630 | register_fw_error_notifications(&priv->pdev->dev); |
| 631 | |
| 632 | if (!priv->fw_early_crash_irq) |
| 633 | register_early_crash_notifications(&priv->pdev->dev); |
| 634 | |
| 635 | if (priv->vbatt_supported) |
| 636 | icnss_init_vph_monitor(priv); |
| 637 | |
| 638 | return ret; |
| 639 | |
| 640 | err_power_on: |
| 641 | icnss_hw_power_off(priv); |
| 642 | clear_server: |
| 643 | icnss_clear_server(priv); |
| 644 | fail: |
| 645 | ICNSS_ASSERT(ignore_assert); |
| 646 | qmi_registered: |
| 647 | return ret; |
| 648 | } |
| 649 | |
| 650 | static int icnss_driver_event_server_exit(struct icnss_priv *priv) |
| 651 | { |
| 652 | if (!priv) |
| 653 | return -ENODEV; |
| 654 | |
| 655 | icnss_pr_info("WLAN FW Service Disconnected: 0x%lx\n", priv->state); |
| 656 | |
| 657 | icnss_clear_server(priv); |
| 658 | |
| 659 | if (priv->adc_tm_dev && priv->vbatt_supported) |
| 660 | adc_tm5_disable_chan_meas(priv->adc_tm_dev, |
| 661 | &priv->vph_monitor_params); |
| 662 | |
| 663 | return 0; |
| 664 | } |
| 665 | |
| 666 | static int icnss_call_driver_probe(struct icnss_priv *priv) |
| 667 | { |
| 668 | int ret = 0; |
| 669 | int probe_cnt = 0; |
| 670 | |
| 671 | if (!priv->ops || !priv->ops->probe) |
| 672 | return 0; |
| 673 | |
| 674 | if (test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 675 | return -EINVAL; |
| 676 | |
| 677 | icnss_pr_dbg("Calling driver probe state: 0x%lx\n", priv->state); |
| 678 | |
| 679 | icnss_hw_power_on(priv); |
| 680 | |
| 681 | icnss_block_shutdown(true); |
| 682 | while (probe_cnt < ICNSS_MAX_PROBE_CNT) { |
| 683 | ret = priv->ops->probe(&priv->pdev->dev); |
| 684 | probe_cnt++; |
| 685 | if (ret != -EPROBE_DEFER) |
| 686 | break; |
| 687 | } |
| 688 | if (ret < 0) { |
| 689 | icnss_pr_err("Driver probe failed: %d, state: 0x%lx, probe_cnt: %d\n", |
| 690 | ret, priv->state, probe_cnt); |
| 691 | icnss_block_shutdown(false); |
| 692 | goto out; |
| 693 | } |
| 694 | |
| 695 | icnss_block_shutdown(false); |
| 696 | set_bit(ICNSS_DRIVER_PROBED, &priv->state); |
| 697 | |
| 698 | return 0; |
| 699 | |
| 700 | out: |
| 701 | icnss_hw_power_off(priv); |
| 702 | return ret; |
| 703 | } |
| 704 | |
| 705 | static int icnss_call_driver_shutdown(struct icnss_priv *priv) |
| 706 | { |
| 707 | if (!test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 708 | goto out; |
| 709 | |
| 710 | if (!priv->ops || !priv->ops->shutdown) |
| 711 | goto out; |
| 712 | |
| 713 | if (test_bit(ICNSS_SHUTDOWN_DONE, &priv->state)) |
| 714 | goto out; |
| 715 | |
| 716 | icnss_pr_dbg("Calling driver shutdown state: 0x%lx\n", priv->state); |
| 717 | |
| 718 | priv->ops->shutdown(&priv->pdev->dev); |
| 719 | set_bit(ICNSS_SHUTDOWN_DONE, &priv->state); |
| 720 | |
| 721 | out: |
| 722 | return 0; |
| 723 | } |
| 724 | |
| 725 | static int icnss_pd_restart_complete(struct icnss_priv *priv) |
| 726 | { |
| 727 | int ret; |
| 728 | |
| 729 | icnss_pm_relax(priv); |
| 730 | |
| 731 | icnss_call_driver_shutdown(priv); |
| 732 | |
| 733 | clear_bit(ICNSS_PDR, &priv->state); |
| 734 | clear_bit(ICNSS_REJUVENATE, &priv->state); |
| 735 | clear_bit(ICNSS_PD_RESTART, &priv->state); |
| 736 | priv->early_crash_ind = false; |
| 737 | priv->is_ssr = false; |
| 738 | |
| 739 | if (!priv->ops || !priv->ops->reinit) |
| 740 | goto out; |
| 741 | |
| 742 | if (test_bit(ICNSS_FW_DOWN, &priv->state)) { |
| 743 | icnss_pr_err("FW is in bad state, state: 0x%lx\n", |
| 744 | priv->state); |
| 745 | goto out; |
| 746 | } |
| 747 | |
| 748 | if (!test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 749 | goto call_probe; |
| 750 | |
| 751 | icnss_pr_dbg("Calling driver reinit state: 0x%lx\n", priv->state); |
| 752 | |
| 753 | icnss_hw_power_on(priv); |
| 754 | |
| 755 | icnss_block_shutdown(true); |
| 756 | |
| 757 | ret = priv->ops->reinit(&priv->pdev->dev); |
| 758 | if (ret < 0) { |
| 759 | icnss_fatal_err("Driver reinit failed: %d, state: 0x%lx\n", |
| 760 | ret, priv->state); |
| 761 | if (!priv->allow_recursive_recovery) |
| 762 | ICNSS_ASSERT(false); |
| 763 | icnss_block_shutdown(false); |
| 764 | goto out_power_off; |
| 765 | } |
| 766 | |
| 767 | out: |
| 768 | icnss_block_shutdown(false); |
| 769 | clear_bit(ICNSS_SHUTDOWN_DONE, &priv->state); |
| 770 | return 0; |
| 771 | |
| 772 | call_probe: |
| 773 | return icnss_call_driver_probe(priv); |
| 774 | |
| 775 | out_power_off: |
| 776 | icnss_hw_power_off(priv); |
| 777 | |
| 778 | return ret; |
| 779 | } |
| 780 | |
| 781 | |
| 782 | static int icnss_driver_event_fw_ready_ind(struct icnss_priv *priv, void *data) |
| 783 | { |
| 784 | int ret = 0; |
| 785 | |
| 786 | if (!priv) |
| 787 | return -ENODEV; |
| 788 | |
| 789 | set_bit(ICNSS_FW_READY, &priv->state); |
| 790 | clear_bit(ICNSS_MODE_ON, &priv->state); |
| 791 | |
| 792 | icnss_pr_info("WLAN FW is ready: 0x%lx\n", priv->state); |
| 793 | |
| 794 | icnss_hw_power_off(priv); |
| 795 | |
| 796 | if (!priv->pdev) { |
| 797 | icnss_pr_err("Device is not ready\n"); |
| 798 | ret = -ENODEV; |
| 799 | goto out; |
| 800 | } |
| 801 | |
| 802 | if (test_bit(ICNSS_PD_RESTART, &priv->state)) |
| 803 | ret = icnss_pd_restart_complete(priv); |
| 804 | else |
| 805 | ret = icnss_call_driver_probe(priv); |
| 806 | |
| 807 | out: |
| 808 | return ret; |
| 809 | } |
| 810 | |
| 811 | static int icnss_driver_event_fw_init_done(struct icnss_priv *priv, void *data) |
| 812 | { |
| 813 | int ret = 0; |
| 814 | |
| 815 | if (!priv) |
| 816 | return -ENODEV; |
| 817 | |
| 818 | icnss_pr_info("WLAN FW Initialization done: 0x%lx\n", priv->state); |
| 819 | |
| 820 | ret = wlfw_wlan_mode_send_sync_msg(priv, |
| 821 | (enum wlfw_driver_mode_enum_v01)ICNSS_CALIBRATION); |
| 822 | |
| 823 | return ret; |
| 824 | } |
| 825 | |
Mohammed Siddiq | 049053c | 2020-04-07 21:33:26 +0530 | [diff] [blame] | 826 | int icnss_alloc_qdss_mem(struct icnss_priv *priv) |
| 827 | { |
| 828 | struct platform_device *pdev = priv->pdev; |
| 829 | struct icnss_fw_mem *qdss_mem = priv->qdss_mem; |
| 830 | int i, j; |
| 831 | |
| 832 | for (i = 0; i < priv->qdss_mem_seg_len; i++) { |
| 833 | if (!qdss_mem[i].va && qdss_mem[i].size) { |
| 834 | qdss_mem[i].va = |
| 835 | dma_alloc_coherent(&pdev->dev, |
| 836 | qdss_mem[i].size, |
| 837 | &qdss_mem[i].pa, |
| 838 | GFP_KERNEL); |
| 839 | if (!qdss_mem[i].va) { |
| 840 | icnss_pr_err("Failed to allocate QDSS memory for FW, size: 0x%zx, type: %u, chuck-ID: %d\n", |
| 841 | qdss_mem[i].size, |
| 842 | qdss_mem[i].type, i); |
| 843 | break; |
| 844 | } |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | /* Best-effort allocation for QDSS trace */ |
| 849 | if (i < priv->qdss_mem_seg_len) { |
| 850 | for (j = i; j < priv->qdss_mem_seg_len; j++) { |
| 851 | qdss_mem[j].type = 0; |
| 852 | qdss_mem[j].size = 0; |
| 853 | } |
| 854 | priv->qdss_mem_seg_len = i; |
| 855 | } |
| 856 | |
| 857 | return 0; |
| 858 | } |
| 859 | |
| 860 | void icnss_free_qdss_mem(struct icnss_priv *priv) |
| 861 | { |
| 862 | struct platform_device *pdev = priv->pdev; |
| 863 | struct icnss_fw_mem *qdss_mem = priv->qdss_mem; |
| 864 | int i; |
| 865 | |
| 866 | for (i = 0; i < priv->qdss_mem_seg_len; i++) { |
| 867 | if (qdss_mem[i].va && qdss_mem[i].size) { |
| 868 | icnss_pr_dbg("Freeing memory for QDSS: pa: %pa, size: 0x%zx, type: %u\n", |
| 869 | &qdss_mem[i].pa, qdss_mem[i].size, |
| 870 | qdss_mem[i].type); |
| 871 | dma_free_coherent(&pdev->dev, |
| 872 | qdss_mem[i].size, qdss_mem[i].va, |
| 873 | qdss_mem[i].pa); |
| 874 | qdss_mem[i].va = NULL; |
| 875 | qdss_mem[i].pa = 0; |
| 876 | qdss_mem[i].size = 0; |
| 877 | qdss_mem[i].type = 0; |
| 878 | } |
| 879 | } |
| 880 | priv->qdss_mem_seg_len = 0; |
| 881 | } |
| 882 | |
| 883 | static int icnss_qdss_trace_req_mem_hdlr(struct icnss_priv *priv) |
| 884 | { |
| 885 | int ret = 0; |
| 886 | |
| 887 | ret = icnss_alloc_qdss_mem(priv); |
| 888 | if (ret < 0) |
| 889 | return ret; |
| 890 | |
| 891 | return wlfw_qdss_trace_mem_info_send_sync(priv); |
| 892 | } |
| 893 | |
| 894 | static void *icnss_qdss_trace_pa_to_va(struct icnss_priv *priv, |
| 895 | u64 pa, u32 size, int *seg_id) |
| 896 | { |
| 897 | int i = 0; |
| 898 | struct icnss_fw_mem *qdss_mem = priv->qdss_mem; |
| 899 | u64 offset = 0; |
| 900 | void *va = NULL; |
| 901 | u64 local_pa; |
| 902 | u32 local_size; |
| 903 | |
| 904 | for (i = 0; i < priv->qdss_mem_seg_len; i++) { |
| 905 | local_pa = (u64)qdss_mem[i].pa; |
| 906 | local_size = (u32)qdss_mem[i].size; |
| 907 | if (pa == local_pa && size <= local_size) { |
| 908 | va = qdss_mem[i].va; |
| 909 | break; |
| 910 | } |
| 911 | if (pa > local_pa && |
| 912 | pa < local_pa + local_size && |
| 913 | pa + size <= local_pa + local_size) { |
| 914 | offset = pa - local_pa; |
| 915 | va = qdss_mem[i].va + offset; |
| 916 | break; |
| 917 | } |
| 918 | } |
| 919 | |
| 920 | *seg_id = i; |
| 921 | return va; |
| 922 | } |
| 923 | |
| 924 | static int icnss_qdss_trace_save_hdlr(struct icnss_priv *priv, |
| 925 | void *data) |
| 926 | { |
| 927 | struct icnss_qmi_event_qdss_trace_save_data *event_data = data; |
| 928 | struct icnss_fw_mem *qdss_mem = priv->qdss_mem; |
| 929 | int ret = 0; |
| 930 | int i; |
| 931 | void *va = NULL; |
| 932 | u64 pa; |
| 933 | u32 size; |
| 934 | int seg_id = 0; |
| 935 | |
| 936 | if (!priv->qdss_mem_seg_len) { |
| 937 | icnss_pr_err("Memory for QDSS trace is not available\n"); |
| 938 | return -ENOMEM; |
| 939 | } |
| 940 | |
| 941 | if (event_data->mem_seg_len == 0) { |
| 942 | for (i = 0; i < priv->qdss_mem_seg_len; i++) { |
| 943 | ret = icnss_genl_send_msg(qdss_mem[i].va, |
| 944 | ICNSS_GENL_MSG_TYPE_QDSS, |
| 945 | event_data->file_name, |
| 946 | qdss_mem[i].size); |
| 947 | if (ret < 0) { |
| 948 | icnss_pr_err("Fail to save QDSS data: %d\n", |
| 949 | ret); |
| 950 | break; |
| 951 | } |
| 952 | } |
| 953 | } else { |
| 954 | for (i = 0; i < event_data->mem_seg_len; i++) { |
| 955 | pa = event_data->mem_seg[i].addr; |
| 956 | size = event_data->mem_seg[i].size; |
| 957 | va = icnss_qdss_trace_pa_to_va(priv, pa, |
| 958 | size, &seg_id); |
| 959 | if (!va) { |
| 960 | icnss_pr_err("Fail to find matching va for pa %pa\n", |
| 961 | &pa); |
| 962 | ret = -EINVAL; |
| 963 | break; |
| 964 | } |
| 965 | ret = icnss_genl_send_msg(va, ICNSS_GENL_MSG_TYPE_QDSS, |
| 966 | event_data->file_name, size); |
| 967 | if (ret < 0) { |
| 968 | icnss_pr_err("Fail to save QDSS data: %d\n", |
| 969 | ret); |
| 970 | break; |
| 971 | } |
| 972 | } |
| 973 | } |
| 974 | |
| 975 | kfree(data); |
| 976 | return ret; |
| 977 | } |
| 978 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 979 | static int icnss_event_soc_wake_request(struct icnss_priv *priv, void *data) |
| 980 | { |
| 981 | int ret = 0; |
| 982 | |
| 983 | if (!priv) |
| 984 | return -ENODEV; |
| 985 | |
| 986 | ret = wlfw_send_soc_wake_msg(priv, QMI_WLFW_WAKE_REQUEST_V01); |
| 987 | if (!ret) |
| 988 | atomic_inc(&priv->soc_wake_ref_count); |
| 989 | |
| 990 | return ret; |
| 991 | } |
| 992 | |
| 993 | static int icnss_event_soc_wake_release(struct icnss_priv *priv, void *data) |
| 994 | { |
| 995 | int ret = 0; |
| 996 | int count = 0; |
| 997 | |
| 998 | if (!priv) |
| 999 | return -ENODEV; |
| 1000 | |
| 1001 | count = atomic_dec_return(&priv->soc_wake_ref_count); |
| 1002 | |
| 1003 | if (count) { |
| 1004 | icnss_pr_dbg("Wake release not called. Ref count: %d", |
| 1005 | count); |
| 1006 | return 0; |
| 1007 | } |
| 1008 | |
| 1009 | ret = wlfw_send_soc_wake_msg(priv, QMI_WLFW_WAKE_RELEASE_V01); |
| 1010 | |
| 1011 | return ret; |
| 1012 | } |
| 1013 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 1014 | static int icnss_driver_event_register_driver(struct icnss_priv *priv, |
| 1015 | void *data) |
| 1016 | { |
| 1017 | int ret = 0; |
| 1018 | int probe_cnt = 0; |
| 1019 | |
| 1020 | if (priv->ops) |
| 1021 | return -EEXIST; |
| 1022 | |
| 1023 | priv->ops = data; |
| 1024 | |
| 1025 | if (test_bit(SKIP_QMI, &priv->ctrl_params.quirks)) |
| 1026 | set_bit(ICNSS_FW_READY, &priv->state); |
| 1027 | |
| 1028 | if (test_bit(ICNSS_FW_DOWN, &priv->state)) { |
| 1029 | icnss_pr_err("FW is in bad state, state: 0x%lx\n", |
| 1030 | priv->state); |
| 1031 | return -ENODEV; |
| 1032 | } |
| 1033 | |
| 1034 | if (!test_bit(ICNSS_FW_READY, &priv->state)) { |
| 1035 | icnss_pr_dbg("FW is not ready yet, state: 0x%lx\n", |
| 1036 | priv->state); |
| 1037 | goto out; |
| 1038 | } |
| 1039 | |
| 1040 | ret = icnss_hw_power_on(priv); |
| 1041 | if (ret) |
| 1042 | goto out; |
| 1043 | |
| 1044 | icnss_block_shutdown(true); |
| 1045 | while (probe_cnt < ICNSS_MAX_PROBE_CNT) { |
| 1046 | ret = priv->ops->probe(&priv->pdev->dev); |
| 1047 | probe_cnt++; |
| 1048 | if (ret != -EPROBE_DEFER) |
| 1049 | break; |
| 1050 | } |
| 1051 | if (ret) { |
| 1052 | icnss_pr_err("Driver probe failed: %d, state: 0x%lx, probe_cnt: %d\n", |
| 1053 | ret, priv->state, probe_cnt); |
| 1054 | icnss_block_shutdown(false); |
| 1055 | goto power_off; |
| 1056 | } |
| 1057 | |
| 1058 | icnss_block_shutdown(false); |
| 1059 | set_bit(ICNSS_DRIVER_PROBED, &priv->state); |
| 1060 | |
| 1061 | return 0; |
| 1062 | |
| 1063 | power_off: |
| 1064 | icnss_hw_power_off(priv); |
| 1065 | out: |
| 1066 | return ret; |
| 1067 | } |
| 1068 | |
| 1069 | static int icnss_driver_event_unregister_driver(struct icnss_priv *priv, |
| 1070 | void *data) |
| 1071 | { |
| 1072 | if (!test_bit(ICNSS_DRIVER_PROBED, &priv->state)) { |
| 1073 | priv->ops = NULL; |
| 1074 | goto out; |
| 1075 | } |
| 1076 | |
| 1077 | set_bit(ICNSS_DRIVER_UNLOADING, &priv->state); |
| 1078 | |
| 1079 | icnss_block_shutdown(true); |
| 1080 | |
| 1081 | if (priv->ops) |
| 1082 | priv->ops->remove(&priv->pdev->dev); |
| 1083 | |
| 1084 | icnss_block_shutdown(false); |
| 1085 | |
| 1086 | clear_bit(ICNSS_DRIVER_UNLOADING, &priv->state); |
| 1087 | clear_bit(ICNSS_DRIVER_PROBED, &priv->state); |
| 1088 | |
| 1089 | priv->ops = NULL; |
| 1090 | |
| 1091 | icnss_hw_power_off(priv); |
| 1092 | |
| 1093 | out: |
| 1094 | return 0; |
| 1095 | } |
| 1096 | |
| 1097 | static int icnss_call_driver_remove(struct icnss_priv *priv) |
| 1098 | { |
| 1099 | icnss_pr_dbg("Calling driver remove state: 0x%lx\n", priv->state); |
| 1100 | |
| 1101 | clear_bit(ICNSS_FW_READY, &priv->state); |
| 1102 | |
| 1103 | if (test_bit(ICNSS_DRIVER_UNLOADING, &priv->state)) |
| 1104 | return 0; |
| 1105 | |
| 1106 | if (!test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 1107 | return 0; |
| 1108 | |
| 1109 | if (!priv->ops || !priv->ops->remove) |
| 1110 | return 0; |
| 1111 | |
| 1112 | set_bit(ICNSS_DRIVER_UNLOADING, &priv->state); |
| 1113 | priv->ops->remove(&priv->pdev->dev); |
| 1114 | |
| 1115 | clear_bit(ICNSS_DRIVER_UNLOADING, &priv->state); |
| 1116 | clear_bit(ICNSS_DRIVER_PROBED, &priv->state); |
| 1117 | |
| 1118 | icnss_hw_power_off(priv); |
| 1119 | |
| 1120 | return 0; |
| 1121 | } |
| 1122 | |
| 1123 | static int icnss_fw_crashed(struct icnss_priv *priv, |
| 1124 | struct icnss_event_pd_service_down_data *event_data) |
| 1125 | { |
| 1126 | icnss_pr_dbg("FW crashed, state: 0x%lx\n", priv->state); |
| 1127 | |
| 1128 | set_bit(ICNSS_PD_RESTART, &priv->state); |
| 1129 | clear_bit(ICNSS_FW_READY, &priv->state); |
| 1130 | |
| 1131 | icnss_pm_stay_awake(priv); |
| 1132 | |
| 1133 | if (test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 1134 | icnss_call_driver_uevent(priv, ICNSS_UEVENT_FW_CRASHED, NULL); |
| 1135 | |
| 1136 | if (event_data && event_data->fw_rejuvenate) |
| 1137 | wlfw_rejuvenate_ack_send_sync_msg(priv); |
| 1138 | |
| 1139 | return 0; |
| 1140 | } |
| 1141 | |
| 1142 | static int icnss_driver_event_pd_service_down(struct icnss_priv *priv, |
| 1143 | void *data) |
| 1144 | { |
| 1145 | struct icnss_event_pd_service_down_data *event_data = data; |
| 1146 | |
| 1147 | if (!test_bit(ICNSS_WLFW_EXISTS, &priv->state)) { |
| 1148 | icnss_ignore_fw_timeout(false); |
| 1149 | goto out; |
| 1150 | } |
| 1151 | |
| 1152 | if (priv->force_err_fatal) |
| 1153 | ICNSS_ASSERT(0); |
| 1154 | |
| 1155 | if (priv->early_crash_ind) { |
| 1156 | icnss_pr_dbg("PD Down ignored as early indication is processed: %d, state: 0x%lx\n", |
| 1157 | event_data->crashed, priv->state); |
| 1158 | goto out; |
| 1159 | } |
| 1160 | |
| 1161 | if (test_bit(ICNSS_PD_RESTART, &priv->state) && event_data->crashed) { |
| 1162 | icnss_fatal_err("PD Down while recovery inprogress, crashed: %d, state: 0x%lx\n", |
| 1163 | event_data->crashed, priv->state); |
| 1164 | if (!priv->allow_recursive_recovery) |
| 1165 | ICNSS_ASSERT(0); |
| 1166 | goto out; |
| 1167 | } |
| 1168 | |
| 1169 | if (!test_bit(ICNSS_PD_RESTART, &priv->state)) |
| 1170 | icnss_fw_crashed(priv, event_data); |
| 1171 | |
| 1172 | out: |
| 1173 | kfree(data); |
| 1174 | |
| 1175 | return 0; |
| 1176 | } |
| 1177 | |
| 1178 | static int icnss_driver_event_early_crash_ind(struct icnss_priv *priv, |
| 1179 | void *data) |
| 1180 | { |
| 1181 | if (!test_bit(ICNSS_WLFW_EXISTS, &priv->state)) { |
| 1182 | icnss_ignore_fw_timeout(false); |
| 1183 | goto out; |
| 1184 | } |
| 1185 | |
| 1186 | priv->early_crash_ind = true; |
| 1187 | icnss_fw_crashed(priv, NULL); |
| 1188 | |
| 1189 | out: |
| 1190 | kfree(data); |
| 1191 | |
| 1192 | return 0; |
| 1193 | } |
| 1194 | |
| 1195 | static int icnss_driver_event_idle_shutdown(struct icnss_priv *priv, |
| 1196 | void *data) |
| 1197 | { |
| 1198 | int ret = 0; |
| 1199 | |
| 1200 | if (!priv->ops || !priv->ops->idle_shutdown) |
| 1201 | return 0; |
| 1202 | |
| 1203 | if (priv->is_ssr || test_bit(ICNSS_PDR, &priv->state) || |
| 1204 | test_bit(ICNSS_REJUVENATE, &priv->state)) { |
| 1205 | icnss_pr_err("SSR/PDR is already in-progress during idle shutdown callback\n"); |
| 1206 | ret = -EBUSY; |
| 1207 | } else { |
| 1208 | icnss_pr_dbg("Calling driver idle shutdown, state: 0x%lx\n", |
| 1209 | priv->state); |
| 1210 | icnss_block_shutdown(true); |
| 1211 | ret = priv->ops->idle_shutdown(&priv->pdev->dev); |
| 1212 | icnss_block_shutdown(false); |
| 1213 | } |
| 1214 | |
| 1215 | return ret; |
| 1216 | } |
| 1217 | |
| 1218 | static int icnss_driver_event_idle_restart(struct icnss_priv *priv, |
| 1219 | void *data) |
| 1220 | { |
| 1221 | int ret = 0; |
| 1222 | |
| 1223 | if (!priv->ops || !priv->ops->idle_restart) |
| 1224 | return 0; |
| 1225 | |
| 1226 | if (priv->is_ssr || test_bit(ICNSS_PDR, &priv->state) || |
| 1227 | test_bit(ICNSS_REJUVENATE, &priv->state)) { |
| 1228 | icnss_pr_err("SSR/PDR is already in-progress during idle restart callback\n"); |
| 1229 | ret = -EBUSY; |
| 1230 | } else { |
| 1231 | icnss_pr_dbg("Calling driver idle restart, state: 0x%lx\n", |
| 1232 | priv->state); |
| 1233 | icnss_block_shutdown(true); |
| 1234 | ret = priv->ops->idle_restart(&priv->pdev->dev); |
| 1235 | icnss_block_shutdown(false); |
| 1236 | } |
| 1237 | |
| 1238 | return ret; |
| 1239 | } |
| 1240 | |
Mohammed Siddiq | 049053c | 2020-04-07 21:33:26 +0530 | [diff] [blame] | 1241 | static int icnss_qdss_trace_free_hdlr(struct icnss_priv *priv) |
| 1242 | { |
| 1243 | icnss_free_qdss_mem(priv); |
| 1244 | |
| 1245 | return 0; |
| 1246 | } |
| 1247 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 1248 | static void icnss_driver_event_work(struct work_struct *work) |
| 1249 | { |
| 1250 | struct icnss_priv *priv = |
| 1251 | container_of(work, struct icnss_priv, event_work); |
| 1252 | struct icnss_driver_event *event; |
| 1253 | unsigned long flags; |
| 1254 | int ret; |
| 1255 | |
| 1256 | icnss_pm_stay_awake(priv); |
| 1257 | |
| 1258 | spin_lock_irqsave(&priv->event_lock, flags); |
| 1259 | |
| 1260 | while (!list_empty(&priv->event_list)) { |
| 1261 | event = list_first_entry(&priv->event_list, |
| 1262 | struct icnss_driver_event, list); |
| 1263 | list_del(&event->list); |
| 1264 | spin_unlock_irqrestore(&priv->event_lock, flags); |
| 1265 | |
| 1266 | icnss_pr_dbg("Processing event: %s%s(%d), state: 0x%lx\n", |
| 1267 | icnss_driver_event_to_str(event->type), |
| 1268 | event->sync ? "-sync" : "", event->type, |
| 1269 | priv->state); |
| 1270 | |
| 1271 | switch (event->type) { |
| 1272 | case ICNSS_DRIVER_EVENT_SERVER_ARRIVE: |
| 1273 | ret = icnss_driver_event_server_arrive(priv, |
| 1274 | event->data); |
| 1275 | break; |
| 1276 | case ICNSS_DRIVER_EVENT_SERVER_EXIT: |
| 1277 | ret = icnss_driver_event_server_exit(priv); |
| 1278 | break; |
| 1279 | case ICNSS_DRIVER_EVENT_FW_READY_IND: |
| 1280 | ret = icnss_driver_event_fw_ready_ind(priv, |
| 1281 | event->data); |
| 1282 | break; |
| 1283 | case ICNSS_DRIVER_EVENT_REGISTER_DRIVER: |
| 1284 | ret = icnss_driver_event_register_driver(priv, |
| 1285 | event->data); |
| 1286 | break; |
| 1287 | case ICNSS_DRIVER_EVENT_UNREGISTER_DRIVER: |
| 1288 | ret = icnss_driver_event_unregister_driver(priv, |
| 1289 | event->data); |
| 1290 | break; |
| 1291 | case ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN: |
| 1292 | ret = icnss_driver_event_pd_service_down(priv, |
| 1293 | event->data); |
| 1294 | break; |
| 1295 | case ICNSS_DRIVER_EVENT_FW_EARLY_CRASH_IND: |
| 1296 | ret = icnss_driver_event_early_crash_ind(priv, |
| 1297 | event->data); |
| 1298 | break; |
| 1299 | case ICNSS_DRIVER_EVENT_IDLE_SHUTDOWN: |
| 1300 | ret = icnss_driver_event_idle_shutdown(priv, |
| 1301 | event->data); |
| 1302 | break; |
| 1303 | case ICNSS_DRIVER_EVENT_IDLE_RESTART: |
| 1304 | ret = icnss_driver_event_idle_restart(priv, |
| 1305 | event->data); |
| 1306 | break; |
| 1307 | case ICNSS_DRIVER_EVENT_FW_INIT_DONE_IND: |
| 1308 | ret = icnss_driver_event_fw_init_done(priv, |
| 1309 | event->data); |
| 1310 | break; |
Mohammed Siddiq | 049053c | 2020-04-07 21:33:26 +0530 | [diff] [blame] | 1311 | case ICNSS_DRIVER_EVENT_QDSS_TRACE_REQ_MEM: |
| 1312 | ret = icnss_qdss_trace_req_mem_hdlr(priv); |
| 1313 | break; |
| 1314 | case ICNSS_DRIVER_EVENT_QDSS_TRACE_SAVE: |
| 1315 | ret = icnss_qdss_trace_save_hdlr(priv, |
| 1316 | event->data); |
| 1317 | break; |
| 1318 | case ICNSS_DRIVER_EVENT_QDSS_TRACE_FREE: |
| 1319 | ret = icnss_qdss_trace_free_hdlr(priv); |
| 1320 | break; |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 1321 | default: |
| 1322 | icnss_pr_err("Invalid Event type: %d", event->type); |
| 1323 | kfree(event); |
| 1324 | continue; |
| 1325 | } |
| 1326 | |
| 1327 | priv->stats.events[event->type].processed++; |
| 1328 | |
| 1329 | icnss_pr_dbg("Event Processed: %s%s(%d), ret: %d, state: 0x%lx\n", |
| 1330 | icnss_driver_event_to_str(event->type), |
| 1331 | event->sync ? "-sync" : "", event->type, ret, |
| 1332 | priv->state); |
| 1333 | |
| 1334 | spin_lock_irqsave(&priv->event_lock, flags); |
| 1335 | if (event->sync) { |
| 1336 | event->ret = ret; |
| 1337 | complete(&event->complete); |
| 1338 | continue; |
| 1339 | } |
| 1340 | spin_unlock_irqrestore(&priv->event_lock, flags); |
| 1341 | |
| 1342 | kfree(event); |
| 1343 | |
| 1344 | spin_lock_irqsave(&priv->event_lock, flags); |
| 1345 | } |
| 1346 | spin_unlock_irqrestore(&priv->event_lock, flags); |
| 1347 | |
| 1348 | icnss_pm_relax(priv); |
| 1349 | } |
| 1350 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 1351 | static void icnss_soc_wake_msg_work(struct work_struct *work) |
| 1352 | { |
| 1353 | struct icnss_priv *priv = |
| 1354 | container_of(work, struct icnss_priv, soc_wake_msg_work); |
| 1355 | struct icnss_soc_wake_event *event; |
| 1356 | unsigned long flags; |
| 1357 | int ret; |
| 1358 | |
| 1359 | icnss_pm_stay_awake(priv); |
| 1360 | |
| 1361 | spin_lock_irqsave(&priv->soc_wake_msg_lock, flags); |
| 1362 | |
| 1363 | while (!list_empty(&priv->soc_wake_msg_list)) { |
| 1364 | event = list_first_entry(&priv->soc_wake_msg_list, |
| 1365 | struct icnss_soc_wake_event, list); |
| 1366 | list_del(&event->list); |
| 1367 | spin_unlock_irqrestore(&priv->soc_wake_msg_lock, flags); |
| 1368 | |
| 1369 | icnss_pr_dbg("Processing event: %s%s(%d), state: 0x%lx\n", |
| 1370 | icnss_soc_wake_event_to_str(event->type), |
| 1371 | event->sync ? "-sync" : "", event->type, |
| 1372 | priv->state); |
| 1373 | |
| 1374 | switch (event->type) { |
| 1375 | case ICNSS_SOC_WAKE_REQUEST_EVENT: |
| 1376 | ret = icnss_event_soc_wake_request(priv, |
| 1377 | event->data); |
| 1378 | break; |
| 1379 | case ICNSS_SOC_WAKE_RELEASE_EVENT: |
| 1380 | ret = icnss_event_soc_wake_release(priv, |
| 1381 | event->data); |
| 1382 | break; |
| 1383 | default: |
| 1384 | icnss_pr_err("Invalid Event type: %d", event->type); |
| 1385 | kfree(event); |
| 1386 | continue; |
| 1387 | } |
| 1388 | |
| 1389 | priv->stats.soc_wake_events[event->type].processed++; |
| 1390 | |
| 1391 | icnss_pr_dbg("Event Processed: %s%s(%d), ret: %d, state: 0x%lx\n", |
| 1392 | icnss_soc_wake_event_to_str(event->type), |
| 1393 | event->sync ? "-sync" : "", event->type, ret, |
| 1394 | priv->state); |
| 1395 | |
| 1396 | spin_lock_irqsave(&priv->soc_wake_msg_lock, flags); |
| 1397 | if (event->sync) { |
| 1398 | event->ret = ret; |
| 1399 | complete(&event->complete); |
| 1400 | continue; |
| 1401 | } |
| 1402 | spin_unlock_irqrestore(&priv->soc_wake_msg_lock, flags); |
| 1403 | |
| 1404 | kfree(event); |
| 1405 | |
| 1406 | spin_lock_irqsave(&priv->soc_wake_msg_lock, flags); |
| 1407 | } |
| 1408 | spin_unlock_irqrestore(&priv->soc_wake_msg_lock, flags); |
| 1409 | |
| 1410 | icnss_pm_relax(priv); |
| 1411 | } |
| 1412 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 1413 | static int icnss_msa0_ramdump(struct icnss_priv *priv) |
| 1414 | { |
| 1415 | struct ramdump_segment segment; |
| 1416 | |
| 1417 | memset(&segment, 0, sizeof(segment)); |
| 1418 | segment.v_address = priv->msa_va; |
| 1419 | segment.size = priv->msa_mem_size; |
| 1420 | return do_ramdump(priv->msa0_dump_dev, &segment, 1); |
| 1421 | } |
| 1422 | |
| 1423 | static void icnss_update_state_send_modem_shutdown(struct icnss_priv *priv, |
| 1424 | void *data) |
| 1425 | { |
| 1426 | struct notif_data *notif = data; |
| 1427 | int ret = 0; |
| 1428 | |
| 1429 | if (!notif->crashed) { |
| 1430 | if (atomic_read(&priv->is_shutdown)) { |
| 1431 | atomic_set(&priv->is_shutdown, false); |
| 1432 | if (!test_bit(ICNSS_PD_RESTART, &priv->state) && |
| 1433 | !test_bit(ICNSS_SHUTDOWN_DONE, &priv->state)) { |
| 1434 | icnss_call_driver_remove(priv); |
| 1435 | } |
| 1436 | } |
| 1437 | |
| 1438 | if (test_bit(ICNSS_BLOCK_SHUTDOWN, &priv->state)) { |
| 1439 | if (!wait_for_completion_timeout( |
| 1440 | &priv->unblock_shutdown, |
| 1441 | msecs_to_jiffies(PROBE_TIMEOUT))) |
| 1442 | icnss_pr_err("modem block shutdown timeout\n"); |
| 1443 | } |
| 1444 | |
| 1445 | ret = wlfw_send_modem_shutdown_msg(priv); |
| 1446 | if (ret < 0) |
| 1447 | icnss_pr_err("Fail to send modem shutdown Indication %d\n", |
| 1448 | ret); |
| 1449 | } |
| 1450 | } |
| 1451 | |
| 1452 | static int icnss_modem_notifier_nb(struct notifier_block *nb, |
| 1453 | unsigned long code, |
| 1454 | void *data) |
| 1455 | { |
| 1456 | struct icnss_event_pd_service_down_data *event_data; |
| 1457 | struct notif_data *notif = data; |
| 1458 | struct icnss_priv *priv = container_of(nb, struct icnss_priv, |
| 1459 | modem_ssr_nb); |
| 1460 | struct icnss_uevent_fw_down_data fw_down_data; |
| 1461 | |
| 1462 | icnss_pr_vdbg("Modem-Notify: event %lu\n", code); |
| 1463 | |
| 1464 | if (code == SUBSYS_AFTER_SHUTDOWN) { |
| 1465 | icnss_pr_info("Collecting msa0 segment dump\n"); |
| 1466 | icnss_msa0_ramdump(priv); |
| 1467 | return NOTIFY_OK; |
| 1468 | } |
| 1469 | |
| 1470 | if (code != SUBSYS_BEFORE_SHUTDOWN) |
| 1471 | return NOTIFY_OK; |
| 1472 | |
| 1473 | priv->is_ssr = true; |
| 1474 | |
| 1475 | icnss_update_state_send_modem_shutdown(priv, data); |
| 1476 | |
| 1477 | if (test_bit(ICNSS_PDR_REGISTERED, &priv->state)) { |
| 1478 | set_bit(ICNSS_FW_DOWN, &priv->state); |
| 1479 | icnss_ignore_fw_timeout(true); |
| 1480 | |
| 1481 | fw_down_data.crashed = !!notif->crashed; |
| 1482 | if (test_bit(ICNSS_FW_READY, &priv->state)) |
| 1483 | icnss_call_driver_uevent(priv, |
| 1484 | ICNSS_UEVENT_FW_DOWN, |
| 1485 | &fw_down_data); |
| 1486 | return NOTIFY_OK; |
| 1487 | } |
| 1488 | |
| 1489 | icnss_pr_info("Modem went down, state: 0x%lx, crashed: %d\n", |
| 1490 | priv->state, notif->crashed); |
| 1491 | |
| 1492 | set_bit(ICNSS_FW_DOWN, &priv->state); |
| 1493 | |
| 1494 | if (notif->crashed) |
| 1495 | priv->stats.recovery.root_pd_crash++; |
| 1496 | else |
| 1497 | priv->stats.recovery.root_pd_shutdown++; |
| 1498 | |
| 1499 | icnss_ignore_fw_timeout(true); |
| 1500 | |
| 1501 | event_data = kzalloc(sizeof(*event_data), GFP_KERNEL); |
| 1502 | |
| 1503 | if (event_data == NULL) |
| 1504 | return notifier_from_errno(-ENOMEM); |
| 1505 | |
| 1506 | event_data->crashed = notif->crashed; |
| 1507 | |
| 1508 | fw_down_data.crashed = !!notif->crashed; |
| 1509 | if (test_bit(ICNSS_FW_READY, &priv->state)) |
| 1510 | icnss_call_driver_uevent(priv, |
| 1511 | ICNSS_UEVENT_FW_DOWN, |
| 1512 | &fw_down_data); |
| 1513 | |
| 1514 | icnss_driver_event_post(priv, ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN, |
| 1515 | ICNSS_EVENT_SYNC, event_data); |
| 1516 | |
| 1517 | return NOTIFY_OK; |
| 1518 | } |
| 1519 | |
| 1520 | static int icnss_modem_ssr_register_notifier(struct icnss_priv *priv) |
| 1521 | { |
| 1522 | int ret = 0; |
| 1523 | |
| 1524 | priv->modem_ssr_nb.notifier_call = icnss_modem_notifier_nb; |
| 1525 | |
| 1526 | priv->modem_notify_handler = |
| 1527 | subsys_notif_register_notifier("modem", &priv->modem_ssr_nb); |
| 1528 | |
| 1529 | if (IS_ERR(priv->modem_notify_handler)) { |
| 1530 | ret = PTR_ERR(priv->modem_notify_handler); |
| 1531 | icnss_pr_err("Modem register notifier failed: %d\n", ret); |
| 1532 | } |
| 1533 | |
| 1534 | set_bit(ICNSS_SSR_REGISTERED, &priv->state); |
| 1535 | |
| 1536 | return ret; |
| 1537 | } |
| 1538 | |
| 1539 | static int icnss_modem_ssr_unregister_notifier(struct icnss_priv *priv) |
| 1540 | { |
| 1541 | if (!test_and_clear_bit(ICNSS_SSR_REGISTERED, &priv->state)) |
| 1542 | return 0; |
| 1543 | |
| 1544 | subsys_notif_unregister_notifier(priv->modem_notify_handler, |
| 1545 | &priv->modem_ssr_nb); |
| 1546 | priv->modem_notify_handler = NULL; |
| 1547 | |
| 1548 | return 0; |
| 1549 | } |
| 1550 | |
| 1551 | static int icnss_pdr_unregister_notifier(struct icnss_priv *priv) |
| 1552 | { |
| 1553 | int i; |
| 1554 | |
| 1555 | if (!test_and_clear_bit(ICNSS_PDR_REGISTERED, &priv->state)) |
| 1556 | return 0; |
| 1557 | |
| 1558 | for (i = 0; i < priv->total_domains; i++) |
| 1559 | service_notif_unregister_notifier( |
| 1560 | priv->service_notifier[i].handle, |
| 1561 | &priv->service_notifier_nb); |
| 1562 | |
| 1563 | kfree(priv->service_notifier); |
| 1564 | |
| 1565 | priv->service_notifier = NULL; |
| 1566 | |
| 1567 | return 0; |
| 1568 | } |
| 1569 | |
| 1570 | static int icnss_service_notifier_notify(struct notifier_block *nb, |
| 1571 | unsigned long notification, void *data) |
| 1572 | { |
| 1573 | struct icnss_priv *priv = container_of(nb, struct icnss_priv, |
| 1574 | service_notifier_nb); |
| 1575 | enum pd_subsys_state *state = data; |
| 1576 | struct icnss_event_pd_service_down_data *event_data; |
| 1577 | struct icnss_uevent_fw_down_data fw_down_data; |
| 1578 | enum icnss_pdr_cause_index cause = ICNSS_ROOT_PD_CRASH; |
| 1579 | |
| 1580 | icnss_pr_dbg("PD service notification: 0x%lx state: 0x%lx\n", |
| 1581 | notification, priv->state); |
| 1582 | |
| 1583 | if (notification != SERVREG_NOTIF_SERVICE_STATE_DOWN_V01) |
| 1584 | goto done; |
| 1585 | |
| 1586 | if (!priv->is_ssr) |
| 1587 | set_bit(ICNSS_PDR, &priv->state); |
| 1588 | |
| 1589 | event_data = kzalloc(sizeof(*event_data), GFP_KERNEL); |
| 1590 | |
| 1591 | if (event_data == NULL) |
| 1592 | return notifier_from_errno(-ENOMEM); |
| 1593 | |
| 1594 | event_data->crashed = true; |
| 1595 | |
| 1596 | if (state == NULL) { |
| 1597 | priv->stats.recovery.root_pd_crash++; |
| 1598 | goto event_post; |
| 1599 | } |
| 1600 | |
| 1601 | switch (*state) { |
| 1602 | case ROOT_PD_WDOG_BITE: |
| 1603 | priv->stats.recovery.root_pd_crash++; |
| 1604 | break; |
| 1605 | case ROOT_PD_SHUTDOWN: |
| 1606 | cause = ICNSS_ROOT_PD_SHUTDOWN; |
| 1607 | priv->stats.recovery.root_pd_shutdown++; |
| 1608 | event_data->crashed = false; |
| 1609 | break; |
| 1610 | case USER_PD_STATE_CHANGE: |
| 1611 | if (test_bit(ICNSS_HOST_TRIGGERED_PDR, &priv->state)) { |
| 1612 | cause = ICNSS_HOST_ERROR; |
| 1613 | priv->stats.recovery.pdr_host_error++; |
| 1614 | } else { |
| 1615 | cause = ICNSS_FW_CRASH; |
| 1616 | priv->stats.recovery.pdr_fw_crash++; |
| 1617 | } |
| 1618 | break; |
| 1619 | default: |
| 1620 | priv->stats.recovery.root_pd_crash++; |
| 1621 | break; |
| 1622 | } |
| 1623 | icnss_pr_info("PD service down, pd_state: %d, state: 0x%lx: cause: %s\n", |
| 1624 | *state, priv->state, icnss_pdr_cause[cause]); |
| 1625 | event_post: |
| 1626 | if (!test_bit(ICNSS_FW_DOWN, &priv->state)) { |
| 1627 | set_bit(ICNSS_FW_DOWN, &priv->state); |
| 1628 | icnss_ignore_fw_timeout(true); |
| 1629 | |
| 1630 | fw_down_data.crashed = event_data->crashed; |
| 1631 | if (test_bit(ICNSS_FW_READY, &priv->state)) |
| 1632 | icnss_call_driver_uevent(priv, |
| 1633 | ICNSS_UEVENT_FW_DOWN, |
| 1634 | &fw_down_data); |
| 1635 | } |
| 1636 | |
| 1637 | clear_bit(ICNSS_HOST_TRIGGERED_PDR, &priv->state); |
| 1638 | icnss_driver_event_post(priv, ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN, |
| 1639 | ICNSS_EVENT_SYNC, event_data); |
| 1640 | done: |
| 1641 | if (notification == SERVREG_NOTIF_SERVICE_STATE_UP_V01) |
| 1642 | clear_bit(ICNSS_FW_DOWN, &priv->state); |
| 1643 | return NOTIFY_OK; |
| 1644 | } |
| 1645 | |
| 1646 | static int icnss_get_service_location_notify(struct notifier_block *nb, |
| 1647 | unsigned long opcode, void *data) |
| 1648 | { |
| 1649 | struct icnss_priv *priv = container_of(nb, struct icnss_priv, |
| 1650 | get_service_nb); |
| 1651 | struct pd_qmi_client_data *pd = data; |
| 1652 | int curr_state; |
| 1653 | int ret; |
| 1654 | int i; |
| 1655 | int j; |
| 1656 | bool duplicate; |
| 1657 | struct service_notifier_context *notifier; |
| 1658 | |
| 1659 | icnss_pr_dbg("Get service notify opcode: %lu, state: 0x%lx\n", opcode, |
| 1660 | priv->state); |
| 1661 | |
| 1662 | if (opcode != LOCATOR_UP) |
| 1663 | return NOTIFY_DONE; |
| 1664 | |
| 1665 | if (pd->total_domains == 0) { |
| 1666 | icnss_pr_err("Did not find any domains\n"); |
| 1667 | ret = -ENOENT; |
| 1668 | goto out; |
| 1669 | } |
| 1670 | |
| 1671 | notifier = kcalloc(pd->total_domains, |
| 1672 | sizeof(struct service_notifier_context), |
| 1673 | GFP_KERNEL); |
| 1674 | if (!notifier) { |
| 1675 | ret = -ENOMEM; |
| 1676 | goto out; |
| 1677 | } |
| 1678 | |
| 1679 | priv->service_notifier_nb.notifier_call = icnss_service_notifier_notify; |
| 1680 | |
| 1681 | for (i = 0; i < pd->total_domains; i++) { |
| 1682 | duplicate = false; |
| 1683 | for (j = i + 1; j < pd->total_domains; j++) { |
| 1684 | if (!strcmp(pd->domain_list[i].name, |
| 1685 | pd->domain_list[j].name)) |
| 1686 | duplicate = true; |
| 1687 | } |
| 1688 | |
| 1689 | if (duplicate) |
| 1690 | continue; |
| 1691 | |
| 1692 | icnss_pr_dbg("%d: domain_name: %s, instance_id: %d\n", i, |
| 1693 | pd->domain_list[i].name, |
| 1694 | pd->domain_list[i].instance_id); |
| 1695 | |
| 1696 | notifier[i].handle = |
| 1697 | service_notif_register_notifier(pd->domain_list[i].name, |
| 1698 | pd->domain_list[i].instance_id, |
| 1699 | &priv->service_notifier_nb, &curr_state); |
| 1700 | notifier[i].instance_id = pd->domain_list[i].instance_id; |
| 1701 | strlcpy(notifier[i].name, pd->domain_list[i].name, |
| 1702 | QMI_SERVREG_LOC_NAME_LENGTH_V01 + 1); |
| 1703 | |
| 1704 | if (IS_ERR(notifier[i].handle)) { |
| 1705 | icnss_pr_err("%d: Unable to register notifier for %s(0x%x)\n", |
| 1706 | i, pd->domain_list->name, |
| 1707 | pd->domain_list->instance_id); |
| 1708 | ret = PTR_ERR(notifier[i].handle); |
| 1709 | goto free_handle; |
| 1710 | } |
| 1711 | } |
| 1712 | |
| 1713 | priv->service_notifier = notifier; |
| 1714 | priv->total_domains = pd->total_domains; |
| 1715 | |
| 1716 | set_bit(ICNSS_PDR_REGISTERED, &priv->state); |
| 1717 | |
| 1718 | icnss_pr_dbg("PD notification registration happened, state: 0x%lx\n", |
| 1719 | priv->state); |
| 1720 | |
| 1721 | return NOTIFY_OK; |
| 1722 | |
| 1723 | free_handle: |
| 1724 | for (i = 0; i < pd->total_domains; i++) { |
| 1725 | if (notifier[i].handle) |
| 1726 | service_notif_unregister_notifier(notifier[i].handle, |
| 1727 | &priv->service_notifier_nb); |
| 1728 | } |
| 1729 | kfree(notifier); |
| 1730 | |
| 1731 | out: |
| 1732 | icnss_pr_err("PD restart not enabled: %d, state: 0x%lx\n", ret, |
| 1733 | priv->state); |
| 1734 | |
| 1735 | return NOTIFY_OK; |
| 1736 | } |
| 1737 | |
| 1738 | |
| 1739 | static int icnss_pd_restart_enable(struct icnss_priv *priv) |
| 1740 | { |
| 1741 | int ret; |
| 1742 | |
| 1743 | if (test_bit(SSR_ONLY, &priv->ctrl_params.quirks)) { |
| 1744 | icnss_pr_dbg("PDR disabled through module parameter\n"); |
| 1745 | return 0; |
| 1746 | } |
| 1747 | |
| 1748 | icnss_pr_dbg("Get service location, state: 0x%lx\n", priv->state); |
| 1749 | |
| 1750 | priv->get_service_nb.notifier_call = icnss_get_service_location_notify; |
| 1751 | ret = get_service_location(ICNSS_SERVICE_LOCATION_CLIENT_NAME, |
| 1752 | ICNSS_WLAN_SERVICE_NAME, |
| 1753 | &priv->get_service_nb); |
| 1754 | if (ret) { |
| 1755 | icnss_pr_err("Get service location failed: %d\n", ret); |
| 1756 | goto out; |
| 1757 | } |
| 1758 | |
| 1759 | return 0; |
| 1760 | out: |
| 1761 | icnss_pr_err("Failed to enable PD restart: %d\n", ret); |
| 1762 | return ret; |
| 1763 | |
| 1764 | } |
| 1765 | |
| 1766 | |
| 1767 | static int icnss_enable_recovery(struct icnss_priv *priv) |
| 1768 | { |
| 1769 | int ret; |
| 1770 | |
| 1771 | if (test_bit(RECOVERY_DISABLE, &priv->ctrl_params.quirks)) { |
| 1772 | icnss_pr_dbg("Recovery disabled through module parameter\n"); |
| 1773 | return 0; |
| 1774 | } |
| 1775 | |
| 1776 | if (test_bit(PDR_ONLY, &priv->ctrl_params.quirks)) { |
| 1777 | icnss_pr_dbg("SSR disabled through module parameter\n"); |
| 1778 | goto enable_pdr; |
| 1779 | } |
| 1780 | |
| 1781 | priv->msa0_dump_dev = create_ramdump_device("wcss_msa0", |
| 1782 | &priv->pdev->dev); |
| 1783 | if (!priv->msa0_dump_dev) |
| 1784 | return -ENOMEM; |
| 1785 | |
| 1786 | icnss_modem_ssr_register_notifier(priv); |
| 1787 | if (test_bit(SSR_ONLY, &priv->ctrl_params.quirks)) { |
| 1788 | icnss_pr_dbg("PDR disabled through module parameter\n"); |
| 1789 | return 0; |
| 1790 | } |
| 1791 | |
| 1792 | enable_pdr: |
| 1793 | ret = icnss_pd_restart_enable(priv); |
| 1794 | |
| 1795 | if (ret) |
| 1796 | return ret; |
| 1797 | |
| 1798 | return 0; |
| 1799 | } |
| 1800 | |
Naman Padhiar | 80389af | 2020-04-17 21:50:20 +0530 | [diff] [blame] | 1801 | int icnss_qmi_send(struct device *dev, int type, void *cmd, |
| 1802 | int cmd_len, void *cb_ctx, |
| 1803 | int (*cb)(void *ctx, void *event, int event_len)) |
| 1804 | { |
| 1805 | struct icnss_priv *priv = icnss_get_plat_priv(); |
| 1806 | int ret; |
| 1807 | |
| 1808 | if (!priv) |
| 1809 | return -ENODEV; |
| 1810 | |
| 1811 | if (!test_bit(ICNSS_WLFW_CONNECTED, &priv->state)) |
| 1812 | return -EINVAL; |
| 1813 | |
| 1814 | priv->get_info_cb = cb; |
| 1815 | priv->get_info_cb_ctx = cb_ctx; |
| 1816 | |
| 1817 | ret = icnss_wlfw_get_info_send_sync(priv, type, cmd, cmd_len); |
| 1818 | if (ret) { |
| 1819 | priv->get_info_cb = NULL; |
| 1820 | priv->get_info_cb_ctx = NULL; |
| 1821 | } |
| 1822 | |
| 1823 | return ret; |
| 1824 | } |
| 1825 | EXPORT_SYMBOL(icnss_qmi_send); |
| 1826 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 1827 | int __icnss_register_driver(struct icnss_driver_ops *ops, |
| 1828 | struct module *owner, const char *mod_name) |
| 1829 | { |
| 1830 | int ret = 0; |
| 1831 | struct icnss_priv *priv = icnss_get_plat_priv(); |
| 1832 | |
| 1833 | if (!priv || !priv->pdev) { |
| 1834 | ret = -ENODEV; |
| 1835 | goto out; |
| 1836 | } |
| 1837 | |
| 1838 | icnss_pr_dbg("Registering driver, state: 0x%lx\n", priv->state); |
| 1839 | |
| 1840 | if (priv->ops) { |
| 1841 | icnss_pr_err("Driver already registered\n"); |
| 1842 | ret = -EEXIST; |
| 1843 | goto out; |
| 1844 | } |
| 1845 | |
| 1846 | if (!ops->probe || !ops->remove) { |
| 1847 | ret = -EINVAL; |
| 1848 | goto out; |
| 1849 | } |
| 1850 | |
| 1851 | ret = icnss_driver_event_post(priv, ICNSS_DRIVER_EVENT_REGISTER_DRIVER, |
| 1852 | 0, ops); |
| 1853 | |
| 1854 | if (ret == -EINTR) |
| 1855 | ret = 0; |
| 1856 | |
| 1857 | out: |
| 1858 | return ret; |
| 1859 | } |
| 1860 | EXPORT_SYMBOL(__icnss_register_driver); |
| 1861 | |
| 1862 | int icnss_unregister_driver(struct icnss_driver_ops *ops) |
| 1863 | { |
| 1864 | int ret; |
| 1865 | struct icnss_priv *priv = icnss_get_plat_priv(); |
| 1866 | |
| 1867 | if (!priv || !priv->pdev) { |
| 1868 | ret = -ENODEV; |
| 1869 | goto out; |
| 1870 | } |
| 1871 | |
| 1872 | icnss_pr_dbg("Unregistering driver, state: 0x%lx\n", priv->state); |
| 1873 | |
| 1874 | if (!priv->ops) { |
| 1875 | icnss_pr_err("Driver not registered\n"); |
| 1876 | ret = -ENOENT; |
| 1877 | goto out; |
| 1878 | } |
| 1879 | |
| 1880 | ret = icnss_driver_event_post(priv, |
| 1881 | ICNSS_DRIVER_EVENT_UNREGISTER_DRIVER, |
| 1882 | ICNSS_EVENT_SYNC_UNINTERRUPTIBLE, NULL); |
| 1883 | out: |
| 1884 | return ret; |
| 1885 | } |
| 1886 | EXPORT_SYMBOL(icnss_unregister_driver); |
| 1887 | |
| 1888 | static struct icnss_msi_config msi_config = { |
| 1889 | .total_vectors = 28, |
| 1890 | .total_users = 2, |
| 1891 | .users = (struct icnss_msi_user[]) { |
| 1892 | { .name = "CE", .num_vectors = 10, .base_vector = 0 }, |
| 1893 | { .name = "DP", .num_vectors = 18, .base_vector = 10 }, |
| 1894 | }, |
| 1895 | }; |
| 1896 | |
| 1897 | static int icnss_get_msi_assignment(struct icnss_priv *priv) |
| 1898 | { |
| 1899 | priv->msi_config = &msi_config; |
| 1900 | |
| 1901 | return 0; |
| 1902 | } |
| 1903 | |
| 1904 | int icnss_get_user_msi_assignment(struct device *dev, char *user_name, |
| 1905 | int *num_vectors, u32 *user_base_data, |
| 1906 | u32 *base_vector) |
| 1907 | { |
| 1908 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 1909 | struct icnss_msi_config *msi_config; |
| 1910 | int idx; |
| 1911 | |
| 1912 | if (!priv) |
| 1913 | return -ENODEV; |
| 1914 | |
| 1915 | msi_config = priv->msi_config; |
| 1916 | if (!msi_config) { |
| 1917 | icnss_pr_err("MSI is not supported.\n"); |
| 1918 | return -EINVAL; |
| 1919 | } |
| 1920 | |
| 1921 | for (idx = 0; idx < msi_config->total_users; idx++) { |
| 1922 | if (strcmp(user_name, msi_config->users[idx].name) == 0) { |
| 1923 | *num_vectors = msi_config->users[idx].num_vectors; |
| 1924 | *user_base_data = msi_config->users[idx].base_vector |
| 1925 | + priv->msi_base_data; |
| 1926 | *base_vector = msi_config->users[idx].base_vector; |
| 1927 | |
| 1928 | icnss_pr_dbg("Assign MSI to user: %s, num_vectors: %d, user_base_data: %u, base_vector: %u\n", |
| 1929 | user_name, *num_vectors, *user_base_data, |
| 1930 | *base_vector); |
| 1931 | |
| 1932 | return 0; |
| 1933 | } |
| 1934 | } |
| 1935 | |
| 1936 | icnss_pr_err("Failed to find MSI assignment for %s!\n", user_name); |
| 1937 | |
| 1938 | return -EINVAL; |
| 1939 | } |
| 1940 | EXPORT_SYMBOL(icnss_get_user_msi_assignment); |
| 1941 | |
| 1942 | int icnss_get_msi_irq(struct device *dev, unsigned int vector) |
| 1943 | { |
| 1944 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 1945 | int irq_num; |
| 1946 | |
| 1947 | irq_num = priv->srng_irqs[vector]; |
| 1948 | icnss_pr_dbg("Get IRQ number %d for vector index %d\n", |
| 1949 | irq_num, vector); |
| 1950 | |
| 1951 | return irq_num; |
| 1952 | } |
| 1953 | EXPORT_SYMBOL(icnss_get_msi_irq); |
| 1954 | |
| 1955 | void icnss_get_msi_address(struct device *dev, u32 *msi_addr_low, |
| 1956 | u32 *msi_addr_high) |
| 1957 | { |
| 1958 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 1959 | |
| 1960 | *msi_addr_low = lower_32_bits(priv->msi_addr_iova); |
| 1961 | *msi_addr_high = upper_32_bits(priv->msi_addr_iova); |
| 1962 | |
| 1963 | } |
| 1964 | EXPORT_SYMBOL(icnss_get_msi_address); |
| 1965 | |
| 1966 | int icnss_ce_request_irq(struct device *dev, unsigned int ce_id, |
| 1967 | irqreturn_t (*handler)(int, void *), |
| 1968 | unsigned long flags, const char *name, void *ctx) |
| 1969 | { |
| 1970 | int ret = 0; |
| 1971 | unsigned int irq; |
| 1972 | struct ce_irq_list *irq_entry; |
| 1973 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 1974 | |
| 1975 | if (!priv || !priv->pdev) { |
| 1976 | ret = -ENODEV; |
| 1977 | goto out; |
| 1978 | } |
| 1979 | |
| 1980 | icnss_pr_vdbg("CE request IRQ: %d, state: 0x%lx\n", ce_id, priv->state); |
| 1981 | |
| 1982 | if (ce_id >= ICNSS_MAX_IRQ_REGISTRATIONS) { |
| 1983 | icnss_pr_err("Invalid CE ID, ce_id: %d\n", ce_id); |
| 1984 | ret = -EINVAL; |
| 1985 | goto out; |
| 1986 | } |
| 1987 | irq = priv->ce_irqs[ce_id]; |
| 1988 | irq_entry = &priv->ce_irq_list[ce_id]; |
| 1989 | |
| 1990 | if (irq_entry->handler || irq_entry->irq) { |
| 1991 | icnss_pr_err("IRQ already requested: %d, ce_id: %d\n", |
| 1992 | irq, ce_id); |
| 1993 | ret = -EEXIST; |
| 1994 | goto out; |
| 1995 | } |
| 1996 | |
| 1997 | ret = request_irq(irq, handler, flags, name, ctx); |
| 1998 | if (ret) { |
| 1999 | icnss_pr_err("IRQ request failed: %d, ce_id: %d, ret: %d\n", |
| 2000 | irq, ce_id, ret); |
| 2001 | goto out; |
| 2002 | } |
| 2003 | irq_entry->irq = irq; |
| 2004 | irq_entry->handler = handler; |
| 2005 | |
| 2006 | icnss_pr_vdbg("IRQ requested: %d, ce_id: %d\n", irq, ce_id); |
| 2007 | |
| 2008 | penv->stats.ce_irqs[ce_id].request++; |
| 2009 | out: |
| 2010 | return ret; |
| 2011 | } |
| 2012 | EXPORT_SYMBOL(icnss_ce_request_irq); |
| 2013 | |
| 2014 | int icnss_ce_free_irq(struct device *dev, unsigned int ce_id, void *ctx) |
| 2015 | { |
| 2016 | int ret = 0; |
| 2017 | unsigned int irq; |
| 2018 | struct ce_irq_list *irq_entry; |
| 2019 | |
| 2020 | if (!penv || !penv->pdev || !dev) { |
| 2021 | ret = -ENODEV; |
| 2022 | goto out; |
| 2023 | } |
| 2024 | |
| 2025 | icnss_pr_vdbg("CE free IRQ: %d, state: 0x%lx\n", ce_id, penv->state); |
| 2026 | |
| 2027 | if (ce_id >= ICNSS_MAX_IRQ_REGISTRATIONS) { |
| 2028 | icnss_pr_err("Invalid CE ID to free, ce_id: %d\n", ce_id); |
| 2029 | ret = -EINVAL; |
| 2030 | goto out; |
| 2031 | } |
| 2032 | |
| 2033 | irq = penv->ce_irqs[ce_id]; |
| 2034 | irq_entry = &penv->ce_irq_list[ce_id]; |
| 2035 | if (!irq_entry->handler || !irq_entry->irq) { |
| 2036 | icnss_pr_err("IRQ not requested: %d, ce_id: %d\n", irq, ce_id); |
| 2037 | ret = -EEXIST; |
| 2038 | goto out; |
| 2039 | } |
| 2040 | free_irq(irq, ctx); |
| 2041 | irq_entry->irq = 0; |
| 2042 | irq_entry->handler = NULL; |
| 2043 | |
| 2044 | penv->stats.ce_irqs[ce_id].free++; |
| 2045 | out: |
| 2046 | return ret; |
| 2047 | } |
| 2048 | EXPORT_SYMBOL(icnss_ce_free_irq); |
| 2049 | |
| 2050 | void icnss_enable_irq(struct device *dev, unsigned int ce_id) |
| 2051 | { |
| 2052 | unsigned int irq; |
| 2053 | |
| 2054 | if (!penv || !penv->pdev || !dev) { |
| 2055 | icnss_pr_err("Platform driver not initialized\n"); |
| 2056 | return; |
| 2057 | } |
| 2058 | |
| 2059 | icnss_pr_vdbg("Enable IRQ: ce_id: %d, state: 0x%lx\n", ce_id, |
| 2060 | penv->state); |
| 2061 | |
| 2062 | if (ce_id >= ICNSS_MAX_IRQ_REGISTRATIONS) { |
| 2063 | icnss_pr_err("Invalid CE ID to enable IRQ, ce_id: %d\n", ce_id); |
| 2064 | return; |
| 2065 | } |
| 2066 | |
| 2067 | penv->stats.ce_irqs[ce_id].enable++; |
| 2068 | |
| 2069 | irq = penv->ce_irqs[ce_id]; |
| 2070 | enable_irq(irq); |
| 2071 | } |
| 2072 | EXPORT_SYMBOL(icnss_enable_irq); |
| 2073 | |
| 2074 | void icnss_disable_irq(struct device *dev, unsigned int ce_id) |
| 2075 | { |
| 2076 | unsigned int irq; |
| 2077 | |
| 2078 | if (!penv || !penv->pdev || !dev) { |
| 2079 | icnss_pr_err("Platform driver not initialized\n"); |
| 2080 | return; |
| 2081 | } |
| 2082 | |
| 2083 | icnss_pr_vdbg("Disable IRQ: ce_id: %d, state: 0x%lx\n", ce_id, |
| 2084 | penv->state); |
| 2085 | |
| 2086 | if (ce_id >= ICNSS_MAX_IRQ_REGISTRATIONS) { |
| 2087 | icnss_pr_err("Invalid CE ID to disable IRQ, ce_id: %d\n", |
| 2088 | ce_id); |
| 2089 | return; |
| 2090 | } |
| 2091 | |
| 2092 | irq = penv->ce_irqs[ce_id]; |
| 2093 | disable_irq(irq); |
| 2094 | |
| 2095 | penv->stats.ce_irqs[ce_id].disable++; |
| 2096 | } |
| 2097 | EXPORT_SYMBOL(icnss_disable_irq); |
| 2098 | |
| 2099 | int icnss_get_soc_info(struct device *dev, struct icnss_soc_info *info) |
| 2100 | { |
| 2101 | char *fw_build_timestamp = NULL; |
| 2102 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2103 | |
| 2104 | if (!priv) { |
| 2105 | icnss_pr_err("Platform driver not initialized\n"); |
| 2106 | return -EINVAL; |
| 2107 | } |
| 2108 | |
| 2109 | info->v_addr = priv->mem_base_va; |
| 2110 | info->p_addr = priv->mem_base_pa; |
| 2111 | info->chip_id = priv->chip_info.chip_id; |
| 2112 | info->chip_family = priv->chip_info.chip_family; |
| 2113 | info->board_id = priv->board_id; |
| 2114 | info->soc_id = priv->soc_id; |
| 2115 | info->fw_version = priv->fw_version_info.fw_version; |
| 2116 | fw_build_timestamp = priv->fw_version_info.fw_build_timestamp; |
| 2117 | fw_build_timestamp[WLFW_MAX_TIMESTAMP_LEN] = '\0'; |
| 2118 | strlcpy(info->fw_build_timestamp, |
| 2119 | priv->fw_version_info.fw_build_timestamp, |
| 2120 | WLFW_MAX_TIMESTAMP_LEN + 1); |
| 2121 | |
| 2122 | return 0; |
| 2123 | } |
| 2124 | EXPORT_SYMBOL(icnss_get_soc_info); |
| 2125 | |
| 2126 | int icnss_set_fw_log_mode(struct device *dev, uint8_t fw_log_mode) |
| 2127 | { |
| 2128 | int ret; |
| 2129 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2130 | |
| 2131 | if (!dev) |
| 2132 | return -ENODEV; |
| 2133 | |
| 2134 | if (test_bit(ICNSS_FW_DOWN, &penv->state) || |
| 2135 | !test_bit(ICNSS_FW_READY, &penv->state)) { |
| 2136 | icnss_pr_err("FW down, ignoring fw_log_mode state: 0x%lx\n", |
| 2137 | priv->state); |
| 2138 | return -EINVAL; |
| 2139 | } |
| 2140 | |
| 2141 | icnss_pr_dbg("FW log mode: %u\n", fw_log_mode); |
| 2142 | |
| 2143 | ret = wlfw_ini_send_sync_msg(priv, fw_log_mode); |
| 2144 | if (ret) |
| 2145 | icnss_pr_err("Fail to send ini, ret = %d, fw_log_mode: %u\n", |
| 2146 | ret, fw_log_mode); |
| 2147 | return ret; |
| 2148 | } |
| 2149 | EXPORT_SYMBOL(icnss_set_fw_log_mode); |
| 2150 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 2151 | int icnss_force_wake_request(struct device *dev) |
| 2152 | { |
| 2153 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2154 | int count = 0; |
| 2155 | |
| 2156 | if (!dev) |
| 2157 | return -ENODEV; |
| 2158 | |
| 2159 | if (!priv) { |
| 2160 | icnss_pr_err("Platform driver not initialized\n"); |
| 2161 | return -EINVAL; |
| 2162 | } |
| 2163 | |
| 2164 | icnss_pr_dbg("Calling SOC Wake request"); |
| 2165 | |
| 2166 | if (atomic_read(&priv->soc_wake_ref_count)) { |
| 2167 | count = atomic_inc_return(&priv->soc_wake_ref_count); |
| 2168 | icnss_pr_dbg("SOC already awake, Ref count: %d", count); |
| 2169 | return 0; |
| 2170 | } |
| 2171 | |
| 2172 | icnss_soc_wake_event_post(priv, ICNSS_SOC_WAKE_REQUEST_EVENT, |
| 2173 | 0, NULL); |
| 2174 | |
| 2175 | return 0; |
| 2176 | } |
| 2177 | EXPORT_SYMBOL(icnss_force_wake_request); |
| 2178 | |
| 2179 | int icnss_force_wake_release(struct device *dev) |
| 2180 | { |
| 2181 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2182 | |
| 2183 | if (!dev) |
| 2184 | return -ENODEV; |
| 2185 | |
| 2186 | if (!priv) { |
| 2187 | icnss_pr_err("Platform driver not initialized\n"); |
| 2188 | return -EINVAL; |
| 2189 | } |
| 2190 | |
| 2191 | icnss_pr_dbg("Calling SOC Wake response"); |
| 2192 | |
| 2193 | icnss_soc_wake_event_post(priv, ICNSS_SOC_WAKE_RELEASE_EVENT, |
| 2194 | 0, NULL); |
| 2195 | |
| 2196 | return 0; |
| 2197 | } |
| 2198 | EXPORT_SYMBOL(icnss_force_wake_release); |
| 2199 | |
| 2200 | int icnss_is_device_awake(struct device *dev) |
| 2201 | { |
| 2202 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2203 | |
| 2204 | if (!dev) |
| 2205 | return -ENODEV; |
| 2206 | |
| 2207 | if (!priv) { |
| 2208 | icnss_pr_err("Platform driver not initialized\n"); |
| 2209 | return -EINVAL; |
| 2210 | } |
| 2211 | |
| 2212 | return atomic_read(&priv->soc_wake_ref_count); |
| 2213 | } |
| 2214 | EXPORT_SYMBOL(icnss_is_device_awake); |
| 2215 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 2216 | int icnss_athdiag_read(struct device *dev, uint32_t offset, |
| 2217 | uint32_t mem_type, uint32_t data_len, |
| 2218 | uint8_t *output) |
| 2219 | { |
| 2220 | int ret = 0; |
| 2221 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2222 | |
| 2223 | if (priv->magic != ICNSS_MAGIC) { |
| 2224 | icnss_pr_err("Invalid drvdata for diag read: dev %pK, data %pK, magic 0x%x\n", |
| 2225 | dev, priv, priv->magic); |
| 2226 | return -EINVAL; |
| 2227 | } |
| 2228 | |
| 2229 | if (!output || data_len == 0 |
| 2230 | || data_len > WLFW_MAX_DATA_SIZE) { |
| 2231 | icnss_pr_err("Invalid parameters for diag read: output %pK, data_len %u\n", |
| 2232 | output, data_len); |
| 2233 | ret = -EINVAL; |
| 2234 | goto out; |
| 2235 | } |
| 2236 | |
| 2237 | if (!test_bit(ICNSS_FW_READY, &priv->state) || |
| 2238 | !test_bit(ICNSS_POWER_ON, &priv->state)) { |
| 2239 | icnss_pr_err("Invalid state for diag read: 0x%lx\n", |
| 2240 | priv->state); |
| 2241 | ret = -EINVAL; |
| 2242 | goto out; |
| 2243 | } |
| 2244 | |
| 2245 | ret = wlfw_athdiag_read_send_sync_msg(priv, offset, mem_type, |
| 2246 | data_len, output); |
| 2247 | out: |
| 2248 | return ret; |
| 2249 | } |
| 2250 | EXPORT_SYMBOL(icnss_athdiag_read); |
| 2251 | |
| 2252 | int icnss_athdiag_write(struct device *dev, uint32_t offset, |
| 2253 | uint32_t mem_type, uint32_t data_len, |
| 2254 | uint8_t *input) |
| 2255 | { |
| 2256 | int ret = 0; |
| 2257 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2258 | |
| 2259 | if (priv->magic != ICNSS_MAGIC) { |
| 2260 | icnss_pr_err("Invalid drvdata for diag write: dev %pK, data %pK, magic 0x%x\n", |
| 2261 | dev, priv, priv->magic); |
| 2262 | return -EINVAL; |
| 2263 | } |
| 2264 | |
| 2265 | if (!input || data_len == 0 |
| 2266 | || data_len > WLFW_MAX_DATA_SIZE) { |
| 2267 | icnss_pr_err("Invalid parameters for diag write: input %pK, data_len %u\n", |
| 2268 | input, data_len); |
| 2269 | ret = -EINVAL; |
| 2270 | goto out; |
| 2271 | } |
| 2272 | |
| 2273 | if (!test_bit(ICNSS_FW_READY, &priv->state) || |
| 2274 | !test_bit(ICNSS_POWER_ON, &priv->state)) { |
| 2275 | icnss_pr_err("Invalid state for diag write: 0x%lx\n", |
| 2276 | priv->state); |
| 2277 | ret = -EINVAL; |
| 2278 | goto out; |
| 2279 | } |
| 2280 | |
| 2281 | ret = wlfw_athdiag_write_send_sync_msg(priv, offset, mem_type, |
| 2282 | data_len, input); |
| 2283 | out: |
| 2284 | return ret; |
| 2285 | } |
| 2286 | EXPORT_SYMBOL(icnss_athdiag_write); |
| 2287 | |
| 2288 | int icnss_wlan_enable(struct device *dev, struct icnss_wlan_enable_cfg *config, |
| 2289 | enum icnss_driver_mode mode, |
| 2290 | const char *host_version) |
| 2291 | { |
| 2292 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2293 | |
| 2294 | if (test_bit(ICNSS_FW_DOWN, &priv->state) || |
| 2295 | !test_bit(ICNSS_FW_READY, &priv->state)) { |
| 2296 | icnss_pr_err("FW down, ignoring wlan_enable state: 0x%lx\n", |
| 2297 | priv->state); |
| 2298 | return -EINVAL; |
| 2299 | } |
| 2300 | |
| 2301 | if (test_bit(ICNSS_MODE_ON, &priv->state)) { |
| 2302 | icnss_pr_err("Already Mode on, ignoring wlan_enable state: 0x%lx\n", |
| 2303 | priv->state); |
| 2304 | return -EINVAL; |
| 2305 | } |
| 2306 | |
| 2307 | return icnss_send_wlan_enable_to_fw(priv, config, mode, host_version); |
| 2308 | } |
| 2309 | EXPORT_SYMBOL(icnss_wlan_enable); |
| 2310 | |
| 2311 | int icnss_wlan_disable(struct device *dev, enum icnss_driver_mode mode) |
| 2312 | { |
| 2313 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2314 | |
| 2315 | if (test_bit(ICNSS_FW_DOWN, &priv->state)) { |
| 2316 | icnss_pr_dbg("FW down, ignoring wlan_disable state: 0x%lx\n", |
| 2317 | priv->state); |
| 2318 | return 0; |
| 2319 | } |
| 2320 | |
| 2321 | return icnss_send_wlan_disable_to_fw(priv); |
| 2322 | } |
| 2323 | EXPORT_SYMBOL(icnss_wlan_disable); |
| 2324 | |
| 2325 | bool icnss_is_qmi_disable(struct device *dev) |
| 2326 | { |
| 2327 | return test_bit(SKIP_QMI, &penv->ctrl_params.quirks) ? true : false; |
| 2328 | } |
| 2329 | EXPORT_SYMBOL(icnss_is_qmi_disable); |
| 2330 | |
| 2331 | int icnss_get_ce_id(struct device *dev, int irq) |
| 2332 | { |
| 2333 | int i; |
| 2334 | |
| 2335 | if (!penv || !penv->pdev || !dev) |
| 2336 | return -ENODEV; |
| 2337 | |
| 2338 | for (i = 0; i < ICNSS_MAX_IRQ_REGISTRATIONS; i++) { |
| 2339 | if (penv->ce_irqs[i] == irq) |
| 2340 | return i; |
| 2341 | } |
| 2342 | |
| 2343 | icnss_pr_err("No matching CE id for irq %d\n", irq); |
| 2344 | |
| 2345 | return -EINVAL; |
| 2346 | } |
| 2347 | EXPORT_SYMBOL(icnss_get_ce_id); |
| 2348 | |
| 2349 | int icnss_get_irq(struct device *dev, int ce_id) |
| 2350 | { |
| 2351 | int irq; |
| 2352 | |
| 2353 | if (!penv || !penv->pdev || !dev) |
| 2354 | return -ENODEV; |
| 2355 | |
| 2356 | if (ce_id >= ICNSS_MAX_IRQ_REGISTRATIONS) |
| 2357 | return -EINVAL; |
| 2358 | |
| 2359 | irq = penv->ce_irqs[ce_id]; |
| 2360 | |
| 2361 | return irq; |
| 2362 | } |
| 2363 | EXPORT_SYMBOL(icnss_get_irq); |
| 2364 | |
| 2365 | struct iommu_domain *icnss_smmu_get_domain(struct device *dev) |
| 2366 | { |
| 2367 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2368 | |
| 2369 | if (!priv) { |
| 2370 | icnss_pr_err("Invalid drvdata: dev %pK\n", dev); |
| 2371 | return NULL; |
| 2372 | } |
| 2373 | return priv->iommu_domain; |
| 2374 | } |
| 2375 | EXPORT_SYMBOL(icnss_smmu_get_domain); |
| 2376 | |
| 2377 | int icnss_smmu_map(struct device *dev, |
| 2378 | phys_addr_t paddr, uint32_t *iova_addr, size_t size) |
| 2379 | { |
| 2380 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2381 | unsigned long iova; |
| 2382 | size_t len; |
| 2383 | int ret = 0; |
| 2384 | |
| 2385 | if (!priv) { |
| 2386 | icnss_pr_err("Invalid drvdata: dev %pK, data %pK\n", |
| 2387 | dev, priv); |
| 2388 | return -EINVAL; |
| 2389 | } |
| 2390 | |
| 2391 | if (!iova_addr) { |
| 2392 | icnss_pr_err("iova_addr is NULL, paddr %pa, size %zu\n", |
| 2393 | &paddr, size); |
| 2394 | return -EINVAL; |
| 2395 | } |
| 2396 | |
| 2397 | len = roundup(size + paddr - rounddown(paddr, PAGE_SIZE), PAGE_SIZE); |
| 2398 | iova = roundup(priv->smmu_iova_ipa_start, PAGE_SIZE); |
| 2399 | |
| 2400 | if (iova >= priv->smmu_iova_ipa_start + priv->smmu_iova_ipa_len) { |
| 2401 | icnss_pr_err("No IOVA space to map, iova %lx, smmu_iova_ipa_start %pad, smmu_iova_ipa_len %zu\n", |
| 2402 | iova, |
| 2403 | &priv->smmu_iova_ipa_start, |
| 2404 | priv->smmu_iova_ipa_len); |
| 2405 | return -ENOMEM; |
| 2406 | } |
| 2407 | |
| 2408 | ret = iommu_map(priv->iommu_domain, iova, |
| 2409 | rounddown(paddr, PAGE_SIZE), len, |
| 2410 | IOMMU_READ | IOMMU_WRITE); |
| 2411 | if (ret) { |
| 2412 | icnss_pr_err("PA to IOVA mapping failed, ret %d\n", ret); |
| 2413 | return ret; |
| 2414 | } |
| 2415 | |
| 2416 | priv->smmu_iova_ipa_start = iova + len; |
| 2417 | *iova_addr = (uint32_t)(iova + paddr - rounddown(paddr, PAGE_SIZE)); |
| 2418 | |
| 2419 | return 0; |
| 2420 | } |
| 2421 | EXPORT_SYMBOL(icnss_smmu_map); |
| 2422 | |
| 2423 | unsigned int icnss_socinfo_get_serial_number(struct device *dev) |
| 2424 | { |
| 2425 | return socinfo_get_serial_number(); |
| 2426 | } |
| 2427 | EXPORT_SYMBOL(icnss_socinfo_get_serial_number); |
| 2428 | |
| 2429 | int icnss_trigger_recovery(struct device *dev) |
| 2430 | { |
| 2431 | int ret = 0; |
| 2432 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2433 | |
| 2434 | if (priv->magic != ICNSS_MAGIC) { |
| 2435 | icnss_pr_err("Invalid drvdata: magic 0x%x\n", priv->magic); |
| 2436 | ret = -EINVAL; |
| 2437 | goto out; |
| 2438 | } |
| 2439 | |
| 2440 | if (test_bit(ICNSS_PD_RESTART, &priv->state)) { |
| 2441 | icnss_pr_err("PD recovery already in progress: state: 0x%lx\n", |
| 2442 | priv->state); |
| 2443 | ret = -EPERM; |
| 2444 | goto out; |
| 2445 | } |
| 2446 | |
| 2447 | if (!test_bit(ICNSS_PDR_REGISTERED, &priv->state)) { |
| 2448 | icnss_pr_err("PD restart not enabled to trigger recovery: state: 0x%lx\n", |
| 2449 | priv->state); |
| 2450 | ret = -EOPNOTSUPP; |
| 2451 | goto out; |
| 2452 | } |
| 2453 | |
| 2454 | if (!priv->service_notifier || !priv->service_notifier[0].handle) { |
| 2455 | icnss_pr_err("Invalid handle during recovery, state: 0x%lx\n", |
| 2456 | priv->state); |
| 2457 | ret = -EINVAL; |
| 2458 | goto out; |
| 2459 | } |
| 2460 | |
| 2461 | icnss_pr_warn("Initiate PD restart at WLAN FW, state: 0x%lx\n", |
| 2462 | priv->state); |
| 2463 | |
| 2464 | /* |
| 2465 | * Initiate PDR, required only for the first instance |
| 2466 | */ |
| 2467 | ret = service_notif_pd_restart(priv->service_notifier[0].name, |
| 2468 | priv->service_notifier[0].instance_id); |
| 2469 | |
| 2470 | if (!ret) |
| 2471 | set_bit(ICNSS_HOST_TRIGGERED_PDR, &priv->state); |
| 2472 | |
| 2473 | out: |
| 2474 | return ret; |
| 2475 | } |
| 2476 | EXPORT_SYMBOL(icnss_trigger_recovery); |
| 2477 | |
| 2478 | int icnss_idle_shutdown(struct device *dev) |
| 2479 | { |
| 2480 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2481 | |
| 2482 | if (!priv) { |
| 2483 | icnss_pr_err("Invalid drvdata: dev %pK", dev); |
| 2484 | return -EINVAL; |
| 2485 | } |
| 2486 | |
| 2487 | if (priv->is_ssr || test_bit(ICNSS_PDR, &priv->state) || |
| 2488 | test_bit(ICNSS_REJUVENATE, &priv->state)) { |
| 2489 | icnss_pr_err("SSR/PDR is already in-progress during idle shutdown\n"); |
| 2490 | return -EBUSY; |
| 2491 | } |
| 2492 | |
| 2493 | return icnss_driver_event_post(priv, ICNSS_DRIVER_EVENT_IDLE_SHUTDOWN, |
| 2494 | ICNSS_EVENT_SYNC_UNINTERRUPTIBLE, NULL); |
| 2495 | } |
| 2496 | EXPORT_SYMBOL(icnss_idle_shutdown); |
| 2497 | |
| 2498 | int icnss_idle_restart(struct device *dev) |
| 2499 | { |
| 2500 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2501 | |
| 2502 | if (!priv) { |
| 2503 | icnss_pr_err("Invalid drvdata: dev %pK", dev); |
| 2504 | return -EINVAL; |
| 2505 | } |
| 2506 | |
| 2507 | if (priv->is_ssr || test_bit(ICNSS_PDR, &priv->state) || |
| 2508 | test_bit(ICNSS_REJUVENATE, &priv->state)) { |
| 2509 | icnss_pr_err("SSR/PDR is already in-progress during idle restart\n"); |
| 2510 | return -EBUSY; |
| 2511 | } |
| 2512 | |
| 2513 | return icnss_driver_event_post(priv, ICNSS_DRIVER_EVENT_IDLE_RESTART, |
| 2514 | ICNSS_EVENT_SYNC_UNINTERRUPTIBLE, NULL); |
| 2515 | } |
| 2516 | EXPORT_SYMBOL(icnss_idle_restart); |
| 2517 | |
| 2518 | void icnss_allow_recursive_recovery(struct device *dev) |
| 2519 | { |
| 2520 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2521 | |
| 2522 | priv->allow_recursive_recovery = true; |
| 2523 | |
| 2524 | icnss_pr_info("Recursive recovery allowed for WLAN\n"); |
| 2525 | } |
| 2526 | |
| 2527 | void icnss_disallow_recursive_recovery(struct device *dev) |
| 2528 | { |
| 2529 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 2530 | |
| 2531 | priv->allow_recursive_recovery = false; |
| 2532 | |
| 2533 | icnss_pr_info("Recursive recovery disallowed for WLAN\n"); |
| 2534 | } |
| 2535 | |
| 2536 | static void icnss_sysfs_create(struct icnss_priv *priv) |
| 2537 | { |
| 2538 | struct kobject *icnss_kobject; |
| 2539 | int error = 0; |
| 2540 | |
| 2541 | atomic_set(&priv->is_shutdown, false); |
| 2542 | |
| 2543 | icnss_kobject = kobject_create_and_add("shutdown_wlan", kernel_kobj); |
| 2544 | if (!icnss_kobject) { |
| 2545 | icnss_pr_err("Unable to create kernel object"); |
| 2546 | return; |
| 2547 | } |
| 2548 | |
| 2549 | priv->icnss_kobject = icnss_kobject; |
| 2550 | |
| 2551 | error = sysfs_create_file(icnss_kobject, &icnss_sysfs_attribute.attr); |
| 2552 | if (error) |
| 2553 | icnss_pr_err("Unable to create icnss sysfs file"); |
| 2554 | } |
| 2555 | |
| 2556 | static void icnss_sysfs_destroy(struct icnss_priv *priv) |
| 2557 | { |
| 2558 | struct kobject *icnss_kobject; |
| 2559 | |
| 2560 | icnss_kobject = priv->icnss_kobject; |
| 2561 | if (icnss_kobject) |
| 2562 | kobject_put(icnss_kobject); |
| 2563 | } |
| 2564 | |
| 2565 | static int icnss_get_vbatt_info(struct icnss_priv *priv) |
| 2566 | { |
| 2567 | struct adc_tm_chip *adc_tm_dev = NULL; |
| 2568 | struct iio_channel *channel = NULL; |
| 2569 | int ret = 0; |
| 2570 | |
| 2571 | adc_tm_dev = get_adc_tm(&priv->pdev->dev, "icnss"); |
| 2572 | if (PTR_ERR(adc_tm_dev) == -EPROBE_DEFER) { |
| 2573 | icnss_pr_err("adc_tm_dev probe defer\n"); |
| 2574 | return -EPROBE_DEFER; |
| 2575 | } |
| 2576 | |
| 2577 | if (IS_ERR(adc_tm_dev)) { |
| 2578 | ret = PTR_ERR(adc_tm_dev); |
| 2579 | icnss_pr_err("Not able to get ADC dev, VBATT monitoring is disabled: %d\n", |
| 2580 | ret); |
| 2581 | return ret; |
| 2582 | } |
| 2583 | |
| 2584 | channel = iio_channel_get(&priv->pdev->dev, "icnss"); |
| 2585 | if (PTR_ERR(channel) == -EPROBE_DEFER) { |
| 2586 | icnss_pr_err("channel probe defer\n"); |
| 2587 | return -EPROBE_DEFER; |
| 2588 | } |
| 2589 | |
| 2590 | if (IS_ERR(channel)) { |
| 2591 | ret = PTR_ERR(channel); |
| 2592 | icnss_pr_err("Not able to get VADC dev, VBATT monitoring is disabled: %d\n", |
| 2593 | ret); |
| 2594 | return ret; |
| 2595 | } |
| 2596 | |
| 2597 | priv->adc_tm_dev = adc_tm_dev; |
| 2598 | priv->channel = channel; |
| 2599 | |
| 2600 | return 0; |
| 2601 | } |
| 2602 | |
| 2603 | static int icnss_resource_parse(struct icnss_priv *priv) |
| 2604 | { |
| 2605 | int ret = 0, i = 0; |
| 2606 | struct platform_device *pdev = priv->pdev; |
| 2607 | struct device *dev = &pdev->dev; |
| 2608 | struct resource *res; |
| 2609 | u32 int_prop; |
| 2610 | |
| 2611 | if (of_property_read_bool(pdev->dev.of_node, "qcom,icnss-adc_tm")) { |
| 2612 | ret = icnss_get_vbatt_info(priv); |
| 2613 | if (ret == -EPROBE_DEFER) |
| 2614 | goto out; |
| 2615 | priv->vbatt_supported = true; |
| 2616 | } |
| 2617 | |
| 2618 | ret = icnss_get_vreg(priv); |
| 2619 | if (ret) { |
| 2620 | icnss_pr_err("Failed to get vreg, err = %d\n", ret); |
| 2621 | goto out; |
| 2622 | } |
| 2623 | |
| 2624 | ret = icnss_get_clk(priv); |
| 2625 | if (ret) { |
| 2626 | icnss_pr_err("Failed to get clocks, err = %d\n", ret); |
| 2627 | goto put_vreg; |
| 2628 | } |
| 2629 | |
| 2630 | if (priv->device_id == ADRASTEA_DEVICE_ID) { |
| 2631 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| 2632 | "membase"); |
| 2633 | if (!res) { |
| 2634 | icnss_pr_err("Memory base not found in DT\n"); |
| 2635 | ret = -EINVAL; |
| 2636 | goto put_clk; |
| 2637 | } |
| 2638 | |
| 2639 | priv->mem_base_pa = res->start; |
| 2640 | priv->mem_base_va = devm_ioremap(dev, priv->mem_base_pa, |
| 2641 | resource_size(res)); |
| 2642 | if (!priv->mem_base_va) { |
| 2643 | icnss_pr_err("Memory base ioremap failed: phy addr: %pa\n", |
| 2644 | &priv->mem_base_pa); |
| 2645 | ret = -EINVAL; |
| 2646 | goto put_clk; |
| 2647 | } |
| 2648 | icnss_pr_dbg("MEM_BASE pa: %pa, va: 0x%pK\n", |
| 2649 | &priv->mem_base_pa, |
| 2650 | priv->mem_base_va); |
| 2651 | |
| 2652 | for (i = 0; i < ICNSS_MAX_IRQ_REGISTRATIONS; i++) { |
| 2653 | res = platform_get_resource(priv->pdev, |
| 2654 | IORESOURCE_IRQ, i); |
| 2655 | if (!res) { |
| 2656 | icnss_pr_err("Fail to get IRQ-%d\n", i); |
| 2657 | ret = -ENODEV; |
| 2658 | goto put_clk; |
| 2659 | } else { |
| 2660 | priv->ce_irqs[i] = res->start; |
| 2661 | } |
| 2662 | } |
| 2663 | } else if (priv->device_id == WCN6750_DEVICE_ID) { |
| 2664 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| 2665 | "msi_addr"); |
| 2666 | if (!res) { |
| 2667 | icnss_pr_err("MSI address not found in DT\n"); |
| 2668 | ret = -EINVAL; |
| 2669 | goto put_clk; |
| 2670 | } |
| 2671 | |
| 2672 | priv->msi_addr_pa = res->start; |
| 2673 | priv->msi_addr_iova = dma_map_resource(dev, priv->msi_addr_pa, |
| 2674 | PAGE_SIZE, |
| 2675 | DMA_FROM_DEVICE, 0); |
| 2676 | if (dma_mapping_error(dev, priv->msi_addr_iova)) { |
| 2677 | icnss_pr_err("MSI: failed to map msi address\n"); |
| 2678 | priv->msi_addr_iova = 0; |
| 2679 | ret = -ENOMEM; |
| 2680 | goto put_clk; |
| 2681 | } |
| 2682 | icnss_pr_dbg("MSI Addr pa: %pa, iova: 0x%pK\n", |
| 2683 | &priv->msi_addr_pa, |
| 2684 | priv->msi_addr_iova); |
| 2685 | |
| 2686 | ret = of_property_read_u32_index(dev->of_node, |
| 2687 | "interrupts", |
| 2688 | 1, |
| 2689 | &int_prop); |
| 2690 | if (ret) { |
| 2691 | icnss_pr_dbg("Read interrupt prop failed"); |
| 2692 | goto put_clk; |
| 2693 | } |
| 2694 | |
| 2695 | priv->msi_base_data = int_prop + 32; |
| 2696 | icnss_pr_dbg(" MSI Base Data: %d, IRQ Index: %d\n", |
| 2697 | priv->msi_base_data, int_prop); |
| 2698 | |
| 2699 | icnss_get_msi_assignment(priv); |
| 2700 | for (i = 0; i < msi_config.total_vectors; i++) { |
| 2701 | res = platform_get_resource(priv->pdev, |
| 2702 | IORESOURCE_IRQ, i); |
| 2703 | if (!res) { |
| 2704 | icnss_pr_err("Fail to get IRQ-%d\n", i); |
| 2705 | ret = -ENODEV; |
| 2706 | goto put_clk; |
| 2707 | } else { |
| 2708 | priv->srng_irqs[i] = res->start; |
| 2709 | } |
| 2710 | } |
| 2711 | } |
| 2712 | |
| 2713 | return 0; |
| 2714 | |
| 2715 | put_clk: |
| 2716 | icnss_put_clk(priv); |
| 2717 | put_vreg: |
| 2718 | icnss_put_vreg(priv); |
| 2719 | out: |
| 2720 | return ret; |
| 2721 | } |
| 2722 | |
| 2723 | static int icnss_msa_dt_parse(struct icnss_priv *priv) |
| 2724 | { |
| 2725 | int ret = 0; |
| 2726 | struct platform_device *pdev = priv->pdev; |
| 2727 | struct device *dev = &pdev->dev; |
| 2728 | struct device_node *np = NULL; |
| 2729 | u64 prop_size = 0; |
| 2730 | const __be32 *addrp = NULL; |
| 2731 | |
| 2732 | np = of_parse_phandle(dev->of_node, |
| 2733 | "qcom,wlan-msa-fixed-region", 0); |
| 2734 | if (np) { |
| 2735 | addrp = of_get_address(np, 0, &prop_size, NULL); |
| 2736 | if (!addrp) { |
| 2737 | icnss_pr_err("Failed to get assigned-addresses or property\n"); |
| 2738 | ret = -EINVAL; |
| 2739 | of_node_put(np); |
| 2740 | goto out; |
| 2741 | } |
| 2742 | |
| 2743 | priv->msa_pa = of_translate_address(np, addrp); |
| 2744 | if (priv->msa_pa == OF_BAD_ADDR) { |
| 2745 | icnss_pr_err("Failed to translate MSA PA from device-tree\n"); |
| 2746 | ret = -EINVAL; |
| 2747 | of_node_put(np); |
| 2748 | goto out; |
| 2749 | } |
| 2750 | |
| 2751 | of_node_put(np); |
| 2752 | |
| 2753 | priv->msa_va = memremap(priv->msa_pa, |
| 2754 | (unsigned long)prop_size, MEMREMAP_WT); |
| 2755 | if (!priv->msa_va) { |
| 2756 | icnss_pr_err("MSA PA ioremap failed: phy addr: %pa\n", |
| 2757 | &priv->msa_pa); |
| 2758 | ret = -EINVAL; |
| 2759 | goto out; |
| 2760 | } |
| 2761 | priv->msa_mem_size = prop_size; |
| 2762 | } else { |
| 2763 | ret = of_property_read_u32(dev->of_node, "qcom,wlan-msa-memory", |
| 2764 | &priv->msa_mem_size); |
| 2765 | if (ret || priv->msa_mem_size == 0) { |
| 2766 | icnss_pr_err("Fail to get MSA Memory Size: %u ret: %d\n", |
| 2767 | priv->msa_mem_size, ret); |
| 2768 | goto out; |
| 2769 | } |
| 2770 | |
| 2771 | priv->msa_va = dmam_alloc_coherent(&pdev->dev, |
| 2772 | priv->msa_mem_size, &priv->msa_pa, GFP_KERNEL); |
| 2773 | |
| 2774 | if (!priv->msa_va) { |
| 2775 | icnss_pr_err("DMA alloc failed for MSA\n"); |
| 2776 | ret = -ENOMEM; |
| 2777 | goto out; |
| 2778 | } |
| 2779 | } |
| 2780 | |
| 2781 | icnss_pr_dbg("MSA pa: %pa, MSA va: 0x%pK MSA Memory Size: 0x%x\n", |
| 2782 | &priv->msa_pa, (void *)priv->msa_va, priv->msa_mem_size); |
| 2783 | |
| 2784 | return 0; |
| 2785 | |
| 2786 | out: |
| 2787 | return ret; |
| 2788 | } |
| 2789 | |
| 2790 | static int icnss_smmu_dt_parse(struct icnss_priv *priv) |
| 2791 | { |
| 2792 | int ret = 0; |
| 2793 | struct platform_device *pdev = priv->pdev; |
| 2794 | struct device *dev = &pdev->dev; |
| 2795 | struct resource *res; |
| 2796 | u32 addr_win[2]; |
| 2797 | |
| 2798 | ret = of_property_read_u32_array(dev->of_node, |
| 2799 | "qcom,iommu-dma-addr-pool", |
| 2800 | addr_win, |
| 2801 | ARRAY_SIZE(addr_win)); |
| 2802 | |
| 2803 | if (ret) { |
| 2804 | icnss_pr_err("SMMU IOVA base not found\n"); |
| 2805 | } else { |
| 2806 | priv->iommu_domain = |
| 2807 | iommu_get_domain_for_dev(&pdev->dev); |
| 2808 | |
| 2809 | res = platform_get_resource_byname(pdev, |
| 2810 | IORESOURCE_MEM, |
| 2811 | "smmu_iova_ipa"); |
| 2812 | if (!res) { |
| 2813 | icnss_pr_err("SMMU IOVA IPA not found\n"); |
| 2814 | } else { |
| 2815 | priv->smmu_iova_ipa_start = res->start; |
| 2816 | priv->smmu_iova_ipa_len = resource_size(res); |
| 2817 | icnss_pr_dbg("SMMU IOVA IPA start: %pa, len: %zx\n", |
| 2818 | &priv->smmu_iova_ipa_start, |
| 2819 | priv->smmu_iova_ipa_len); |
| 2820 | } |
| 2821 | } |
| 2822 | |
| 2823 | return 0; |
| 2824 | } |
| 2825 | |
| 2826 | static const struct platform_device_id icnss_platform_id_table[] = { |
| 2827 | { .name = "wcn6750", .driver_data = WCN6750_DEVICE_ID, }, |
| 2828 | { .name = "adrastea", .driver_data = ADRASTEA_DEVICE_ID, }, |
| 2829 | { }, |
| 2830 | }; |
| 2831 | |
| 2832 | static const struct of_device_id icnss_dt_match[] = { |
| 2833 | { |
| 2834 | .compatible = "qcom,wcn6750", |
| 2835 | .data = (void *)&icnss_platform_id_table[0]}, |
| 2836 | { |
| 2837 | .compatible = "qcom,icnss", |
| 2838 | .data = (void *)&icnss_platform_id_table[1]}, |
| 2839 | { }, |
| 2840 | }; |
| 2841 | |
| 2842 | MODULE_DEVICE_TABLE(of, icnss_dt_match); |
| 2843 | |
| 2844 | static void icnss_init_control_params(struct icnss_priv *priv) |
| 2845 | { |
| 2846 | priv->ctrl_params.qmi_timeout = WLFW_TIMEOUT; |
| 2847 | priv->ctrl_params.quirks = ICNSS_QUIRKS_DEFAULT; |
| 2848 | priv->ctrl_params.bdf_type = ICNSS_BDF_TYPE_DEFAULT; |
| 2849 | |
| 2850 | if (of_property_read_bool(priv->pdev->dev.of_node, |
| 2851 | "cnss-daemon-support")) { |
| 2852 | priv->ctrl_params.quirks |= BIT(ENABLE_DAEMON_SUPPORT); |
| 2853 | } |
| 2854 | } |
| 2855 | |
| 2856 | static int icnss_probe(struct platform_device *pdev) |
| 2857 | { |
| 2858 | int ret = 0; |
| 2859 | struct device *dev = &pdev->dev; |
| 2860 | struct icnss_priv *priv; |
| 2861 | const struct of_device_id *of_id; |
| 2862 | const struct platform_device_id *device_id; |
| 2863 | |
| 2864 | if (dev_get_drvdata(dev)) { |
| 2865 | icnss_pr_err("Driver is already initialized\n"); |
| 2866 | return -EEXIST; |
| 2867 | } |
| 2868 | |
| 2869 | of_id = of_match_device(icnss_dt_match, &pdev->dev); |
| 2870 | if (!of_id || !of_id->data) { |
| 2871 | icnss_pr_err("Failed to find of match device!\n"); |
| 2872 | ret = -ENODEV; |
| 2873 | goto out; |
| 2874 | } |
| 2875 | |
| 2876 | device_id = of_id->data; |
| 2877 | |
| 2878 | icnss_pr_dbg("Platform driver probe\n"); |
| 2879 | |
| 2880 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); |
| 2881 | if (!priv) |
| 2882 | return -ENOMEM; |
| 2883 | |
| 2884 | priv->magic = ICNSS_MAGIC; |
| 2885 | dev_set_drvdata(dev, priv); |
| 2886 | |
| 2887 | priv->pdev = pdev; |
| 2888 | priv->device_id = device_id->driver_data; |
| 2889 | INIT_LIST_HEAD(&priv->vreg_list); |
| 2890 | INIT_LIST_HEAD(&priv->clk_list); |
| 2891 | icnss_allow_recursive_recovery(dev); |
| 2892 | |
| 2893 | icnss_init_control_params(priv); |
| 2894 | |
| 2895 | ret = icnss_resource_parse(priv); |
| 2896 | if (ret) |
| 2897 | goto out; |
| 2898 | |
| 2899 | ret = icnss_msa_dt_parse(priv); |
| 2900 | if (ret) |
| 2901 | goto out; |
| 2902 | |
| 2903 | ret = icnss_smmu_dt_parse(priv); |
| 2904 | if (ret) |
| 2905 | goto out; |
| 2906 | |
| 2907 | spin_lock_init(&priv->event_lock); |
| 2908 | spin_lock_init(&priv->on_off_lock); |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 2909 | spin_lock_init(&priv->soc_wake_msg_lock); |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 2910 | mutex_init(&priv->dev_lock); |
| 2911 | |
| 2912 | priv->event_wq = alloc_workqueue("icnss_driver_event", WQ_UNBOUND, 1); |
| 2913 | if (!priv->event_wq) { |
| 2914 | icnss_pr_err("Workqueue creation failed\n"); |
| 2915 | ret = -EFAULT; |
| 2916 | goto smmu_cleanup; |
| 2917 | } |
| 2918 | |
| 2919 | INIT_WORK(&priv->event_work, icnss_driver_event_work); |
| 2920 | INIT_LIST_HEAD(&priv->event_list); |
| 2921 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 2922 | priv->soc_wake_wq = alloc_workqueue("icnss_soc_wake_event", |
| 2923 | WQ_UNBOUND, 1); |
| 2924 | if (!priv->soc_wake_wq) { |
| 2925 | icnss_pr_err("Soc wake Workqueue creation failed\n"); |
| 2926 | ret = -EFAULT; |
| 2927 | goto out_destroy_wq; |
| 2928 | } |
| 2929 | |
| 2930 | INIT_WORK(&priv->soc_wake_msg_work, icnss_soc_wake_msg_work); |
| 2931 | INIT_LIST_HEAD(&priv->soc_wake_msg_list); |
| 2932 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 2933 | ret = icnss_register_fw_service(priv); |
| 2934 | if (ret < 0) { |
| 2935 | icnss_pr_err("fw service registration failed: %d\n", ret); |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 2936 | goto out_destroy_soc_wq; |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 2937 | } |
| 2938 | |
| 2939 | icnss_enable_recovery(priv); |
| 2940 | |
| 2941 | icnss_debugfs_create(priv); |
| 2942 | |
| 2943 | icnss_sysfs_create(priv); |
| 2944 | |
| 2945 | ret = device_init_wakeup(&priv->pdev->dev, true); |
| 2946 | if (ret) |
| 2947 | icnss_pr_err("Failed to init platform device wakeup source, err = %d\n", |
| 2948 | ret); |
| 2949 | |
| 2950 | icnss_set_plat_priv(priv); |
| 2951 | |
| 2952 | init_completion(&priv->unblock_shutdown); |
| 2953 | |
Mohammed Siddiq | 049053c | 2020-04-07 21:33:26 +0530 | [diff] [blame] | 2954 | ret = icnss_genl_init(); |
| 2955 | if (ret < 0) |
| 2956 | icnss_pr_err("ICNSS genl init failed %d\n", ret); |
| 2957 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 2958 | icnss_pr_info("Platform driver probed successfully\n"); |
| 2959 | |
| 2960 | return 0; |
| 2961 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 2962 | out_destroy_soc_wq: |
| 2963 | destroy_workqueue(priv->soc_wake_wq); |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 2964 | out_destroy_wq: |
| 2965 | destroy_workqueue(priv->event_wq); |
| 2966 | smmu_cleanup: |
| 2967 | priv->iommu_domain = NULL; |
| 2968 | out: |
| 2969 | dev_set_drvdata(dev, NULL); |
| 2970 | |
| 2971 | return ret; |
| 2972 | } |
| 2973 | |
| 2974 | static int icnss_remove(struct platform_device *pdev) |
| 2975 | { |
| 2976 | struct icnss_priv *priv = dev_get_drvdata(&pdev->dev); |
| 2977 | |
| 2978 | icnss_pr_info("Removing driver: state: 0x%lx\n", priv->state); |
| 2979 | |
Mohammed Siddiq | 049053c | 2020-04-07 21:33:26 +0530 | [diff] [blame] | 2980 | icnss_genl_exit(); |
| 2981 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 2982 | device_init_wakeup(&priv->pdev->dev, false); |
| 2983 | |
| 2984 | icnss_debugfs_destroy(priv); |
| 2985 | |
| 2986 | icnss_sysfs_destroy(priv); |
| 2987 | |
| 2988 | complete_all(&priv->unblock_shutdown); |
| 2989 | |
| 2990 | icnss_modem_ssr_unregister_notifier(priv); |
| 2991 | |
| 2992 | destroy_ramdump_device(priv->msa0_dump_dev); |
| 2993 | |
| 2994 | icnss_pdr_unregister_notifier(priv); |
| 2995 | |
| 2996 | icnss_unregister_fw_service(priv); |
| 2997 | if (priv->event_wq) |
| 2998 | destroy_workqueue(priv->event_wq); |
| 2999 | |
Mohammed Siddiq | c2024c4 | 2020-05-07 17:14:24 +0530 | [diff] [blame] | 3000 | if (priv->soc_wake_wq) |
| 3001 | destroy_workqueue(priv->soc_wake_wq); |
| 3002 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 3003 | priv->iommu_domain = NULL; |
| 3004 | |
| 3005 | icnss_hw_power_off(priv); |
| 3006 | |
| 3007 | dev_set_drvdata(&pdev->dev, NULL); |
| 3008 | |
| 3009 | return 0; |
| 3010 | } |
| 3011 | |
| 3012 | #ifdef CONFIG_PM_SLEEP |
| 3013 | static int icnss_pm_suspend(struct device *dev) |
| 3014 | { |
| 3015 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 3016 | int ret = 0; |
| 3017 | |
| 3018 | if (priv->magic != ICNSS_MAGIC) { |
| 3019 | icnss_pr_err("Invalid drvdata for pm suspend: dev %pK, data %pK, magic 0x%x\n", |
| 3020 | dev, priv, priv->magic); |
| 3021 | return -EINVAL; |
| 3022 | } |
| 3023 | |
| 3024 | icnss_pr_vdbg("PM Suspend, state: 0x%lx\n", priv->state); |
| 3025 | |
| 3026 | if (!priv->ops || !priv->ops->pm_suspend || |
| 3027 | !test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 3028 | goto out; |
| 3029 | |
| 3030 | ret = priv->ops->pm_suspend(dev); |
| 3031 | |
| 3032 | out: |
| 3033 | if (ret == 0) { |
| 3034 | priv->stats.pm_suspend++; |
| 3035 | set_bit(ICNSS_PM_SUSPEND, &priv->state); |
| 3036 | } else { |
| 3037 | priv->stats.pm_suspend_err++; |
| 3038 | } |
| 3039 | return ret; |
| 3040 | } |
| 3041 | |
| 3042 | static int icnss_pm_resume(struct device *dev) |
| 3043 | { |
| 3044 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 3045 | int ret = 0; |
| 3046 | |
| 3047 | if (priv->magic != ICNSS_MAGIC) { |
| 3048 | icnss_pr_err("Invalid drvdata for pm resume: dev %pK, data %pK, magic 0x%x\n", |
| 3049 | dev, priv, priv->magic); |
| 3050 | return -EINVAL; |
| 3051 | } |
| 3052 | |
| 3053 | icnss_pr_vdbg("PM resume, state: 0x%lx\n", priv->state); |
| 3054 | |
| 3055 | if (!priv->ops || !priv->ops->pm_resume || |
| 3056 | !test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 3057 | goto out; |
| 3058 | |
Mohammed Siddiq | 8dad2db | 2020-04-17 15:27:57 +0530 | [diff] [blame] | 3059 | if (priv->device_id == WCN6750_DEVICE_ID) { |
| 3060 | ret = wlfw_exit_power_save_send_msg(priv); |
| 3061 | if (ret) { |
| 3062 | priv->stats.pm_resume_err++; |
| 3063 | return ret; |
| 3064 | } |
| 3065 | } |
| 3066 | |
Sandeep Singh | 1edc2cf | 2019-12-06 15:52:54 +0530 | [diff] [blame] | 3067 | ret = priv->ops->pm_resume(dev); |
| 3068 | |
| 3069 | out: |
| 3070 | if (ret == 0) { |
| 3071 | priv->stats.pm_resume++; |
| 3072 | clear_bit(ICNSS_PM_SUSPEND, &priv->state); |
| 3073 | } else { |
| 3074 | priv->stats.pm_resume_err++; |
| 3075 | } |
| 3076 | return ret; |
| 3077 | } |
| 3078 | |
| 3079 | static int icnss_pm_suspend_noirq(struct device *dev) |
| 3080 | { |
| 3081 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 3082 | int ret = 0; |
| 3083 | |
| 3084 | if (priv->magic != ICNSS_MAGIC) { |
| 3085 | icnss_pr_err("Invalid drvdata for pm suspend_noirq: dev %pK, data %pK, magic 0x%x\n", |
| 3086 | dev, priv, priv->magic); |
| 3087 | return -EINVAL; |
| 3088 | } |
| 3089 | |
| 3090 | icnss_pr_vdbg("PM suspend_noirq, state: 0x%lx\n", priv->state); |
| 3091 | |
| 3092 | if (!priv->ops || !priv->ops->suspend_noirq || |
| 3093 | !test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 3094 | goto out; |
| 3095 | |
| 3096 | ret = priv->ops->suspend_noirq(dev); |
| 3097 | |
| 3098 | out: |
| 3099 | if (ret == 0) { |
| 3100 | priv->stats.pm_suspend_noirq++; |
| 3101 | set_bit(ICNSS_PM_SUSPEND_NOIRQ, &priv->state); |
| 3102 | } else { |
| 3103 | priv->stats.pm_suspend_noirq_err++; |
| 3104 | } |
| 3105 | return ret; |
| 3106 | } |
| 3107 | |
| 3108 | static int icnss_pm_resume_noirq(struct device *dev) |
| 3109 | { |
| 3110 | struct icnss_priv *priv = dev_get_drvdata(dev); |
| 3111 | int ret = 0; |
| 3112 | |
| 3113 | if (priv->magic != ICNSS_MAGIC) { |
| 3114 | icnss_pr_err("Invalid drvdata for pm resume_noirq: dev %pK, data %pK, magic 0x%x\n", |
| 3115 | dev, priv, priv->magic); |
| 3116 | return -EINVAL; |
| 3117 | } |
| 3118 | |
| 3119 | icnss_pr_vdbg("PM resume_noirq, state: 0x%lx\n", priv->state); |
| 3120 | |
| 3121 | if (!priv->ops || !priv->ops->resume_noirq || |
| 3122 | !test_bit(ICNSS_DRIVER_PROBED, &priv->state)) |
| 3123 | goto out; |
| 3124 | |
| 3125 | ret = priv->ops->resume_noirq(dev); |
| 3126 | |
| 3127 | out: |
| 3128 | if (ret == 0) { |
| 3129 | priv->stats.pm_resume_noirq++; |
| 3130 | clear_bit(ICNSS_PM_SUSPEND_NOIRQ, &priv->state); |
| 3131 | } else { |
| 3132 | priv->stats.pm_resume_noirq_err++; |
| 3133 | } |
| 3134 | return ret; |
| 3135 | } |
| 3136 | #endif |
| 3137 | |
| 3138 | static const struct dev_pm_ops icnss_pm_ops = { |
| 3139 | SET_SYSTEM_SLEEP_PM_OPS(icnss_pm_suspend, |
| 3140 | icnss_pm_resume) |
| 3141 | SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(icnss_pm_suspend_noirq, |
| 3142 | icnss_pm_resume_noirq) |
| 3143 | }; |
| 3144 | |
| 3145 | |
| 3146 | static struct platform_driver icnss_driver = { |
| 3147 | .probe = icnss_probe, |
| 3148 | .remove = icnss_remove, |
| 3149 | .driver = { |
| 3150 | .name = "icnss2", |
| 3151 | .pm = &icnss_pm_ops, |
| 3152 | .of_match_table = icnss_dt_match, |
| 3153 | }, |
| 3154 | }; |
| 3155 | |
| 3156 | static int __init icnss_initialize(void) |
| 3157 | { |
| 3158 | icnss_debug_init(); |
| 3159 | return platform_driver_register(&icnss_driver); |
| 3160 | } |
| 3161 | |
| 3162 | static void __exit icnss_exit(void) |
| 3163 | { |
| 3164 | platform_driver_unregister(&icnss_driver); |
| 3165 | icnss_debug_deinit(); |
| 3166 | } |
| 3167 | |
| 3168 | |
| 3169 | module_init(icnss_initialize); |
| 3170 | module_exit(icnss_exit); |
| 3171 | |
| 3172 | MODULE_LICENSE("GPL v2"); |
| 3173 | MODULE_DESCRIPTION(DEVICE "iWCN CORE platform driver"); |