Karthikeyan Mani | 989ccac | 2019-01-15 16:36:08 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2010-2014, 2016-2019 The Linux Foundation. All rights reserved. |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/uaccess.h> |
| 17 | #include <linux/spinlock.h> |
| 18 | #include <linux/list.h> |
| 19 | #include <linux/sched.h> |
| 20 | #include <linux/wait.h> |
| 21 | #include <linux/errno.h> |
| 22 | #include <linux/fs.h> |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/debugfs.h> |
| 25 | #include <linux/platform_device.h> |
| 26 | #include <linux/sysfs.h> |
| 27 | #include <linux/device.h> |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 28 | #include <linux/of.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 29 | #include <linux/slab.h> |
Laxminath Kasam | 605b42f | 2017-08-01 22:02:15 +0530 | [diff] [blame] | 30 | #include <linux/ipc_logging.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 31 | #include <soc/qcom/subsystem_restart.h> |
| 32 | #include <soc/qcom/scm.h> |
Laxminath Kasam | 605b42f | 2017-08-01 22:02:15 +0530 | [diff] [blame] | 33 | #include <dsp/apr_audio-v2.h> |
| 34 | #include <dsp/audio_notifier.h> |
| 35 | #include <ipc/apr.h> |
| 36 | #include <ipc/apr_tal.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 37 | |
| 38 | #define APR_PKT_IPC_LOG_PAGE_CNT 2 |
| 39 | |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 40 | static struct device *apr_dev_ptr; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 41 | static struct apr_q6 q6; |
| 42 | static struct apr_client client[APR_DEST_MAX][APR_CLIENT_MAX]; |
| 43 | static void *apr_pkt_ctx; |
| 44 | static wait_queue_head_t dsp_wait; |
| 45 | static wait_queue_head_t modem_wait; |
| 46 | static bool is_modem_up; |
| 47 | static bool is_initial_boot; |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 48 | static bool is_child_devices_loaded; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 49 | /* Subsystem restart: QDSP6 data, functions */ |
| 50 | static struct workqueue_struct *apr_reset_workqueue; |
| 51 | static void apr_reset_deregister(struct work_struct *work); |
| 52 | static void dispatch_event(unsigned long code, uint16_t proc); |
| 53 | struct apr_reset_work { |
| 54 | void *handle; |
| 55 | struct work_struct work; |
| 56 | }; |
| 57 | |
| 58 | static bool apr_cf_debug; |
| 59 | |
| 60 | #ifdef CONFIG_DEBUG_FS |
| 61 | static struct dentry *debugfs_apr_debug; |
| 62 | static ssize_t apr_debug_write(struct file *filp, const char __user *ubuf, |
| 63 | size_t cnt, loff_t *ppos) |
| 64 | { |
| 65 | char cmd; |
| 66 | |
| 67 | if (copy_from_user(&cmd, ubuf, 1)) |
| 68 | return -EFAULT; |
| 69 | |
| 70 | apr_cf_debug = (cmd == '1') ? true : false; |
| 71 | |
| 72 | return cnt; |
| 73 | } |
| 74 | |
| 75 | static const struct file_operations apr_debug_ops = { |
| 76 | .write = apr_debug_write, |
| 77 | }; |
| 78 | #endif |
| 79 | |
| 80 | #define APR_PKT_INFO(x...) \ |
| 81 | do { \ |
| 82 | if (apr_pkt_ctx) \ |
| 83 | ipc_log_string(apr_pkt_ctx, "<APR>: "x); \ |
| 84 | } while (0) |
| 85 | |
| 86 | |
| 87 | struct apr_svc_table { |
| 88 | char name[64]; |
| 89 | int idx; |
| 90 | int id; |
| 91 | int client_id; |
| 92 | }; |
| 93 | |
| 94 | static const struct apr_svc_table svc_tbl_qdsp6[] = { |
| 95 | { |
| 96 | .name = "AFE", |
| 97 | .idx = 0, |
| 98 | .id = APR_SVC_AFE, |
| 99 | .client_id = APR_CLIENT_AUDIO, |
| 100 | }, |
| 101 | { |
| 102 | .name = "ASM", |
| 103 | .idx = 1, |
| 104 | .id = APR_SVC_ASM, |
| 105 | .client_id = APR_CLIENT_AUDIO, |
| 106 | }, |
| 107 | { |
| 108 | .name = "ADM", |
| 109 | .idx = 2, |
| 110 | .id = APR_SVC_ADM, |
| 111 | .client_id = APR_CLIENT_AUDIO, |
| 112 | }, |
| 113 | { |
| 114 | .name = "CORE", |
| 115 | .idx = 3, |
| 116 | .id = APR_SVC_ADSP_CORE, |
| 117 | .client_id = APR_CLIENT_AUDIO, |
| 118 | }, |
| 119 | { |
| 120 | .name = "TEST", |
| 121 | .idx = 4, |
| 122 | .id = APR_SVC_TEST_CLIENT, |
| 123 | .client_id = APR_CLIENT_AUDIO, |
| 124 | }, |
| 125 | { |
| 126 | .name = "MVM", |
| 127 | .idx = 5, |
| 128 | .id = APR_SVC_ADSP_MVM, |
| 129 | .client_id = APR_CLIENT_AUDIO, |
| 130 | }, |
| 131 | { |
| 132 | .name = "CVS", |
| 133 | .idx = 6, |
| 134 | .id = APR_SVC_ADSP_CVS, |
| 135 | .client_id = APR_CLIENT_AUDIO, |
| 136 | }, |
| 137 | { |
| 138 | .name = "CVP", |
| 139 | .idx = 7, |
| 140 | .id = APR_SVC_ADSP_CVP, |
| 141 | .client_id = APR_CLIENT_AUDIO, |
| 142 | }, |
| 143 | { |
| 144 | .name = "USM", |
| 145 | .idx = 8, |
| 146 | .id = APR_SVC_USM, |
| 147 | .client_id = APR_CLIENT_AUDIO, |
| 148 | }, |
| 149 | { |
| 150 | .name = "VIDC", |
| 151 | .idx = 9, |
| 152 | .id = APR_SVC_VIDC, |
| 153 | }, |
| 154 | { |
| 155 | .name = "LSM", |
| 156 | .idx = 10, |
| 157 | .id = APR_SVC_LSM, |
| 158 | .client_id = APR_CLIENT_AUDIO, |
| 159 | }, |
| 160 | }; |
| 161 | |
| 162 | static struct apr_svc_table svc_tbl_voice[] = { |
| 163 | { |
| 164 | .name = "VSM", |
| 165 | .idx = 0, |
| 166 | .id = APR_SVC_VSM, |
| 167 | .client_id = APR_CLIENT_VOICE, |
| 168 | }, |
| 169 | { |
| 170 | .name = "VPM", |
| 171 | .idx = 1, |
| 172 | .id = APR_SVC_VPM, |
| 173 | .client_id = APR_CLIENT_VOICE, |
| 174 | }, |
| 175 | { |
| 176 | .name = "MVS", |
| 177 | .idx = 2, |
| 178 | .id = APR_SVC_MVS, |
| 179 | .client_id = APR_CLIENT_VOICE, |
| 180 | }, |
| 181 | { |
| 182 | .name = "MVM", |
| 183 | .idx = 3, |
| 184 | .id = APR_SVC_MVM, |
| 185 | .client_id = APR_CLIENT_VOICE, |
| 186 | }, |
| 187 | { |
| 188 | .name = "CVS", |
| 189 | .idx = 4, |
| 190 | .id = APR_SVC_CVS, |
| 191 | .client_id = APR_CLIENT_VOICE, |
| 192 | }, |
| 193 | { |
| 194 | .name = "CVP", |
| 195 | .idx = 5, |
| 196 | .id = APR_SVC_CVP, |
| 197 | .client_id = APR_CLIENT_VOICE, |
| 198 | }, |
| 199 | { |
| 200 | .name = "SRD", |
| 201 | .idx = 6, |
| 202 | .id = APR_SVC_SRD, |
| 203 | .client_id = APR_CLIENT_VOICE, |
| 204 | }, |
| 205 | { |
| 206 | .name = "TEST", |
| 207 | .idx = 7, |
| 208 | .id = APR_SVC_TEST_CLIENT, |
| 209 | .client_id = APR_CLIENT_VOICE, |
| 210 | }, |
| 211 | }; |
| 212 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 213 | /** |
| 214 | * apr_get_modem_state: |
| 215 | * |
| 216 | * Returns current modem load status |
| 217 | * |
| 218 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 219 | enum apr_subsys_state apr_get_modem_state(void) |
| 220 | { |
| 221 | return atomic_read(&q6.modem_state); |
| 222 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 223 | EXPORT_SYMBOL(apr_get_modem_state); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 224 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 225 | /** |
| 226 | * apr_set_modem_state - Update modem load status. |
| 227 | * |
| 228 | * @state: State to update modem load status |
| 229 | * |
| 230 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 231 | void apr_set_modem_state(enum apr_subsys_state state) |
| 232 | { |
| 233 | atomic_set(&q6.modem_state, state); |
| 234 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 235 | EXPORT_SYMBOL(apr_set_modem_state); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 236 | |
| 237 | enum apr_subsys_state apr_cmpxchg_modem_state(enum apr_subsys_state prev, |
| 238 | enum apr_subsys_state new) |
| 239 | { |
| 240 | return atomic_cmpxchg(&q6.modem_state, prev, new); |
| 241 | } |
| 242 | |
| 243 | static void apr_modem_down(unsigned long opcode) |
| 244 | { |
| 245 | apr_set_modem_state(APR_SUBSYS_DOWN); |
| 246 | dispatch_event(opcode, APR_DEST_MODEM); |
| 247 | } |
| 248 | |
| 249 | static void apr_modem_up(void) |
| 250 | { |
| 251 | if (apr_cmpxchg_modem_state(APR_SUBSYS_DOWN, APR_SUBSYS_UP) == |
| 252 | APR_SUBSYS_DOWN) |
| 253 | wake_up(&modem_wait); |
| 254 | is_modem_up = 1; |
| 255 | } |
| 256 | |
| 257 | enum apr_subsys_state apr_get_q6_state(void) |
| 258 | { |
| 259 | return atomic_read(&q6.q6_state); |
| 260 | } |
| 261 | EXPORT_SYMBOL(apr_get_q6_state); |
| 262 | |
| 263 | int apr_set_q6_state(enum apr_subsys_state state) |
| 264 | { |
| 265 | pr_debug("%s: setting adsp state %d\n", __func__, state); |
| 266 | if (state < APR_SUBSYS_DOWN || state > APR_SUBSYS_LOADED) |
| 267 | return -EINVAL; |
| 268 | atomic_set(&q6.q6_state, state); |
| 269 | return 0; |
| 270 | } |
| 271 | EXPORT_SYMBOL(apr_set_q6_state); |
| 272 | |
| 273 | enum apr_subsys_state apr_cmpxchg_q6_state(enum apr_subsys_state prev, |
| 274 | enum apr_subsys_state new) |
| 275 | { |
| 276 | return atomic_cmpxchg(&q6.q6_state, prev, new); |
| 277 | } |
| 278 | |
| 279 | static void apr_adsp_down(unsigned long opcode) |
| 280 | { |
| 281 | apr_set_q6_state(APR_SUBSYS_DOWN); |
| 282 | dispatch_event(opcode, APR_DEST_QDSP6); |
| 283 | } |
| 284 | |
| 285 | static void apr_adsp_up(void) |
| 286 | { |
| 287 | if (apr_cmpxchg_q6_state(APR_SUBSYS_DOWN, APR_SUBSYS_LOADED) == |
| 288 | APR_SUBSYS_DOWN) |
| 289 | wake_up(&dsp_wait); |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 290 | |
| 291 | if (!is_child_devices_loaded) { |
| 292 | struct platform_device *pdev; |
| 293 | struct device_node *node; |
| 294 | int ret; |
| 295 | |
| 296 | for_each_child_of_node(apr_dev_ptr->of_node, node) { |
| 297 | pdev = platform_device_alloc(node->name, -1); |
| 298 | if (!pdev) { |
| 299 | dev_err(apr_dev_ptr, "%s: pdev memory alloc failed\n", |
| 300 | __func__); |
| 301 | return; |
| 302 | } |
| 303 | pdev->dev.parent = apr_dev_ptr; |
| 304 | pdev->dev.of_node = node; |
| 305 | |
| 306 | ret = platform_device_add(pdev); |
| 307 | if (ret) { |
| 308 | dev_err(apr_dev_ptr, |
| 309 | "%s: Cannot add platform device\n", |
| 310 | __func__); |
| 311 | platform_device_put(pdev); |
| 312 | return; |
| 313 | } |
| 314 | } |
| 315 | is_child_devices_loaded = true; |
| 316 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | int apr_wait_for_device_up(int dest_id) |
| 320 | { |
| 321 | int rc = -1; |
| 322 | |
| 323 | if (dest_id == APR_DEST_MODEM) |
| 324 | rc = wait_event_interruptible_timeout(modem_wait, |
| 325 | (apr_get_modem_state() == APR_SUBSYS_UP), |
| 326 | (1 * HZ)); |
| 327 | else if (dest_id == APR_DEST_QDSP6) |
| 328 | rc = wait_event_interruptible_timeout(dsp_wait, |
| 329 | (apr_get_q6_state() == APR_SUBSYS_UP), |
| 330 | (1 * HZ)); |
| 331 | else |
| 332 | pr_err("%s: unknown dest_id %d\n", __func__, dest_id); |
| 333 | /* returns left time */ |
| 334 | return rc; |
| 335 | } |
| 336 | |
| 337 | int apr_load_adsp_image(void) |
| 338 | { |
| 339 | int rc = 0; |
| 340 | |
| 341 | mutex_lock(&q6.lock); |
| 342 | if (apr_get_q6_state() == APR_SUBSYS_UP) { |
| 343 | q6.pil = subsystem_get("adsp"); |
| 344 | if (IS_ERR(q6.pil)) { |
| 345 | rc = PTR_ERR(q6.pil); |
| 346 | pr_err("APR: Unable to load q6 image, error:%d\n", rc); |
| 347 | } else { |
| 348 | apr_set_q6_state(APR_SUBSYS_LOADED); |
| 349 | pr_debug("APR: Image is loaded, stated\n"); |
| 350 | } |
| 351 | } else if (apr_get_q6_state() == APR_SUBSYS_LOADED) { |
| 352 | pr_debug("APR: q6 image already loaded\n"); |
| 353 | } else { |
| 354 | pr_debug("APR: cannot load state %d\n", apr_get_q6_state()); |
| 355 | } |
| 356 | mutex_unlock(&q6.lock); |
| 357 | return rc; |
| 358 | } |
| 359 | |
| 360 | struct apr_client *apr_get_client(int dest_id, int client_id) |
| 361 | { |
| 362 | return &client[dest_id][client_id]; |
| 363 | } |
| 364 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 365 | /** |
| 366 | * apr_send_pkt - Clients call to send packet |
| 367 | * to destination processor. |
| 368 | * |
| 369 | * @handle: APR service handle |
| 370 | * @buf: payload to send to destination processor. |
| 371 | * |
| 372 | * Returns Bytes(>0)pkt_size on success or error on failure. |
| 373 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 374 | int apr_send_pkt(void *handle, uint32_t *buf) |
| 375 | { |
| 376 | struct apr_svc *svc = handle; |
| 377 | struct apr_client *clnt; |
| 378 | struct apr_hdr *hdr; |
| 379 | uint16_t dest_id; |
| 380 | uint16_t client_id; |
| 381 | uint16_t w_len; |
| 382 | int rc; |
| 383 | unsigned long flags; |
| 384 | |
| 385 | if (!handle || !buf) { |
| 386 | pr_err("APR: Wrong parameters\n"); |
| 387 | return -EINVAL; |
| 388 | } |
| 389 | if (svc->need_reset) { |
Laxminath Kasam | c188070 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 390 | pr_err_ratelimited("apr: send_pkt service need reset\n"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 391 | return -ENETRESET; |
| 392 | } |
| 393 | |
| 394 | if ((svc->dest_id == APR_DEST_QDSP6) && |
| 395 | (apr_get_q6_state() != APR_SUBSYS_LOADED)) { |
Laxminath Kasam | c188070 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 396 | pr_err_ratelimited("%s: Still dsp is not Up\n", __func__); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 397 | return -ENETRESET; |
| 398 | } else if ((svc->dest_id == APR_DEST_MODEM) && |
| 399 | (apr_get_modem_state() == APR_SUBSYS_DOWN)) { |
| 400 | pr_err("apr: Still Modem is not Up\n"); |
| 401 | return -ENETRESET; |
| 402 | } |
| 403 | |
| 404 | spin_lock_irqsave(&svc->w_lock, flags); |
| 405 | dest_id = svc->dest_id; |
| 406 | client_id = svc->client_id; |
| 407 | clnt = &client[dest_id][client_id]; |
| 408 | |
| 409 | if (!client[dest_id][client_id].handle) { |
Laxminath Kasam | c188070 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 410 | pr_err_ratelimited("APR: Still service is not yet opened\n"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 411 | spin_unlock_irqrestore(&svc->w_lock, flags); |
| 412 | return -EINVAL; |
| 413 | } |
| 414 | hdr = (struct apr_hdr *)buf; |
| 415 | |
| 416 | hdr->src_domain = APR_DOMAIN_APPS; |
| 417 | hdr->src_svc = svc->id; |
| 418 | hdr->dest_domain = svc->dest_domain; |
| 419 | hdr->dest_svc = svc->id; |
| 420 | |
| 421 | if (unlikely(apr_cf_debug)) { |
| 422 | APR_PKT_INFO( |
| 423 | "Tx: src_addr[0x%X] dest_addr[0x%X] opcode[0x%X] token[0x%X]", |
| 424 | (hdr->src_domain << 8) | hdr->src_svc, |
| 425 | (hdr->dest_domain << 8) | hdr->dest_svc, hdr->opcode, |
| 426 | hdr->token); |
| 427 | } |
| 428 | |
| 429 | rc = apr_tal_write(clnt->handle, buf, |
| 430 | (struct apr_pkt_priv *)&svc->pkt_owner, |
| 431 | hdr->pkt_size); |
| 432 | if (rc >= 0) { |
| 433 | w_len = rc; |
| 434 | if (w_len != hdr->pkt_size) { |
| 435 | pr_err("%s: Unable to write whole APR pkt successfully: %d\n", |
| 436 | __func__, rc); |
| 437 | rc = -EINVAL; |
| 438 | } |
| 439 | } else { |
| 440 | pr_err("%s: Write APR pkt failed with error %d\n", |
| 441 | __func__, rc); |
| 442 | } |
| 443 | spin_unlock_irqrestore(&svc->w_lock, flags); |
| 444 | |
| 445 | return rc; |
| 446 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 447 | EXPORT_SYMBOL(apr_send_pkt); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 448 | |
| 449 | int apr_pkt_config(void *handle, struct apr_pkt_cfg *cfg) |
| 450 | { |
| 451 | struct apr_svc *svc = (struct apr_svc *)handle; |
| 452 | uint16_t dest_id; |
| 453 | uint16_t client_id; |
| 454 | struct apr_client *clnt; |
| 455 | |
| 456 | if (!handle) { |
| 457 | pr_err("%s: Invalid handle\n", __func__); |
| 458 | return -EINVAL; |
| 459 | } |
| 460 | |
| 461 | if (svc->need_reset) { |
| 462 | pr_err("%s: service need reset\n", __func__); |
| 463 | return -ENETRESET; |
| 464 | } |
| 465 | |
| 466 | svc->pkt_owner = cfg->pkt_owner; |
| 467 | dest_id = svc->dest_id; |
| 468 | client_id = svc->client_id; |
| 469 | clnt = &client[dest_id][client_id]; |
| 470 | |
| 471 | return apr_tal_rx_intents_config(clnt->handle, |
| 472 | cfg->intents.num_of_intents, cfg->intents.size); |
| 473 | } |
| 474 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 475 | /** |
| 476 | * apr_register - Clients call to register |
| 477 | * to APR. |
| 478 | * |
| 479 | * @dest: destination processor |
| 480 | * @svc_name: name of service to register as |
| 481 | * @svc_fn: callback function to trigger when response |
| 482 | * ack or packets received from destination processor. |
| 483 | * @src_port: Port number within a service |
| 484 | * @priv: private data of client, passed back in cb fn. |
| 485 | * |
| 486 | * Returns apr_svc handle on success or NULL on failure. |
| 487 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 488 | struct apr_svc *apr_register(char *dest, char *svc_name, apr_fn svc_fn, |
| 489 | uint32_t src_port, void *priv) |
| 490 | { |
| 491 | struct apr_client *clnt; |
| 492 | int client_id = 0; |
| 493 | int svc_idx = 0; |
| 494 | int svc_id = 0; |
| 495 | int dest_id = 0; |
| 496 | int domain_id = 0; |
| 497 | int temp_port = 0; |
| 498 | struct apr_svc *svc = NULL; |
| 499 | int rc = 0; |
| 500 | bool can_open_channel = true; |
| 501 | |
| 502 | if (!dest || !svc_name || !svc_fn) |
| 503 | return NULL; |
| 504 | |
| 505 | if (!strcmp(dest, "ADSP")) |
| 506 | domain_id = APR_DOMAIN_ADSP; |
| 507 | else if (!strcmp(dest, "MODEM")) { |
| 508 | /* Don't request for SMD channels if destination is MODEM, |
| 509 | * as these channels are no longer used and these clients |
| 510 | * are to listen only for MODEM SSR events |
| 511 | */ |
| 512 | can_open_channel = false; |
| 513 | domain_id = APR_DOMAIN_MODEM; |
| 514 | } else { |
| 515 | pr_err("APR: wrong destination\n"); |
| 516 | goto done; |
| 517 | } |
| 518 | |
| 519 | dest_id = apr_get_dest_id(dest); |
| 520 | |
| 521 | if (dest_id == APR_DEST_QDSP6) { |
| 522 | if (apr_get_q6_state() != APR_SUBSYS_LOADED) { |
Laxminath Kasam | c188070 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 523 | pr_err_ratelimited("%s: adsp not up\n", __func__); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 524 | return NULL; |
| 525 | } |
| 526 | pr_debug("%s: adsp Up\n", __func__); |
| 527 | } else if (dest_id == APR_DEST_MODEM) { |
| 528 | if (apr_get_modem_state() == APR_SUBSYS_DOWN) { |
| 529 | if (is_modem_up) { |
| 530 | pr_err("%s: modem shutdown due to SSR, ret", |
| 531 | __func__); |
| 532 | return NULL; |
| 533 | } |
| 534 | pr_debug("%s: Wait for modem to bootup\n", __func__); |
| 535 | rc = apr_wait_for_device_up(APR_DEST_MODEM); |
| 536 | if (rc == 0) { |
| 537 | pr_err("%s: Modem is not Up\n", __func__); |
| 538 | return NULL; |
| 539 | } |
| 540 | } |
| 541 | pr_debug("%s: modem Up\n", __func__); |
| 542 | } |
| 543 | |
| 544 | if (apr_get_svc(svc_name, domain_id, &client_id, &svc_idx, &svc_id)) { |
Laxminath Kasam | c188070 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 545 | pr_err_ratelimited("%s: apr_get_svc failed\n", __func__); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 546 | goto done; |
| 547 | } |
| 548 | |
| 549 | clnt = &client[dest_id][client_id]; |
| 550 | mutex_lock(&clnt->m_lock); |
| 551 | if (!clnt->handle && can_open_channel) { |
| 552 | clnt->handle = apr_tal_open(client_id, dest_id, |
| 553 | APR_DL_SMD, apr_cb_func, NULL); |
| 554 | if (!clnt->handle) { |
| 555 | svc = NULL; |
Laxminath Kasam | c188070 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 556 | pr_err_ratelimited("APR: Unable to open handle\n"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 557 | mutex_unlock(&clnt->m_lock); |
| 558 | goto done; |
| 559 | } |
| 560 | } |
| 561 | mutex_unlock(&clnt->m_lock); |
| 562 | svc = &clnt->svc[svc_idx]; |
| 563 | mutex_lock(&svc->m_lock); |
| 564 | clnt->id = client_id; |
| 565 | if (svc->need_reset) { |
| 566 | mutex_unlock(&svc->m_lock); |
Laxminath Kasam | c188070 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 567 | pr_err_ratelimited("APR: Service needs reset\n"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 568 | goto done; |
| 569 | } |
| 570 | svc->id = svc_id; |
| 571 | svc->dest_id = dest_id; |
| 572 | svc->client_id = client_id; |
| 573 | svc->dest_domain = domain_id; |
| 574 | svc->pkt_owner = APR_PKT_OWNER_DRIVER; |
| 575 | |
| 576 | if (src_port != 0xFFFFFFFF) { |
| 577 | temp_port = ((src_port >> 8) * 8) + (src_port & 0xFF); |
| 578 | pr_debug("port = %d t_port = %d\n", src_port, temp_port); |
| 579 | if (temp_port >= APR_MAX_PORTS || temp_port < 0) { |
| 580 | pr_err("APR: temp_port out of bounds\n"); |
| 581 | mutex_unlock(&svc->m_lock); |
| 582 | return NULL; |
| 583 | } |
| 584 | if (!svc->svc_cnt) |
| 585 | clnt->svc_cnt++; |
| 586 | svc->port_cnt++; |
| 587 | svc->port_fn[temp_port] = svc_fn; |
| 588 | svc->port_priv[temp_port] = priv; |
| 589 | svc->svc_cnt++; |
| 590 | } else { |
| 591 | if (!svc->fn) { |
| 592 | if (!svc->svc_cnt) |
| 593 | clnt->svc_cnt++; |
| 594 | svc->fn = svc_fn; |
| 595 | svc->priv = priv; |
| 596 | svc->svc_cnt++; |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | mutex_unlock(&svc->m_lock); |
| 601 | done: |
| 602 | return svc; |
| 603 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 604 | EXPORT_SYMBOL(apr_register); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 605 | |
| 606 | |
| 607 | void apr_cb_func(void *buf, int len, void *priv) |
| 608 | { |
| 609 | struct apr_client_data data; |
| 610 | struct apr_client *apr_client; |
| 611 | struct apr_svc *c_svc; |
| 612 | struct apr_hdr *hdr; |
| 613 | uint16_t hdr_size; |
| 614 | uint16_t msg_type; |
| 615 | uint16_t ver; |
| 616 | uint16_t src; |
| 617 | uint16_t svc; |
| 618 | uint16_t clnt; |
| 619 | int i; |
| 620 | int temp_port = 0; |
| 621 | uint32_t *ptr; |
| 622 | |
| 623 | pr_debug("APR2: len = %d\n", len); |
| 624 | ptr = buf; |
| 625 | pr_debug("\n*****************\n"); |
| 626 | for (i = 0; i < len/4; i++) |
| 627 | pr_debug("%x ", ptr[i]); |
| 628 | pr_debug("\n"); |
| 629 | pr_debug("\n*****************\n"); |
| 630 | |
| 631 | if (!buf || len <= APR_HDR_SIZE) { |
| 632 | pr_err("APR: Improper apr pkt received:%pK %d\n", buf, len); |
| 633 | return; |
| 634 | } |
| 635 | hdr = buf; |
| 636 | |
| 637 | ver = hdr->hdr_field; |
| 638 | ver = (ver & 0x000F); |
| 639 | if (ver > APR_PKT_VER + 1) { |
| 640 | pr_err("APR: Wrong version: %d\n", ver); |
| 641 | return; |
| 642 | } |
| 643 | |
| 644 | hdr_size = hdr->hdr_field; |
| 645 | hdr_size = ((hdr_size & 0x00F0) >> 0x4) * 4; |
| 646 | if (hdr_size < APR_HDR_SIZE) { |
| 647 | pr_err("APR: Wrong hdr size:%d\n", hdr_size); |
| 648 | return; |
| 649 | } |
| 650 | |
| 651 | if (hdr->pkt_size < APR_HDR_SIZE) { |
| 652 | pr_err("APR: Wrong paket size\n"); |
| 653 | return; |
| 654 | } |
Karthikeyan Mani | 989ccac | 2019-01-15 16:36:08 -0800 | [diff] [blame] | 655 | |
| 656 | if (hdr->pkt_size < hdr_size) { |
| 657 | pr_err("APR: Packet size less than header size\n"); |
| 658 | return; |
| 659 | } |
| 660 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 661 | msg_type = hdr->hdr_field; |
| 662 | msg_type = (msg_type >> 0x08) & 0x0003; |
| 663 | if (msg_type >= APR_MSG_TYPE_MAX && msg_type != APR_BASIC_RSP_RESULT) { |
| 664 | pr_err("APR: Wrong message type: %d\n", msg_type); |
| 665 | return; |
| 666 | } |
| 667 | |
| 668 | if (hdr->src_domain >= APR_DOMAIN_MAX || |
| 669 | hdr->dest_domain >= APR_DOMAIN_MAX || |
| 670 | hdr->src_svc >= APR_SVC_MAX || |
| 671 | hdr->dest_svc >= APR_SVC_MAX) { |
| 672 | pr_err("APR: Wrong APR header\n"); |
| 673 | return; |
| 674 | } |
| 675 | |
| 676 | svc = hdr->dest_svc; |
| 677 | if (hdr->src_domain == APR_DOMAIN_MODEM) { |
| 678 | if (svc == APR_SVC_MVS || svc == APR_SVC_MVM || |
| 679 | svc == APR_SVC_CVS || svc == APR_SVC_CVP || |
| 680 | svc == APR_SVC_TEST_CLIENT) |
| 681 | clnt = APR_CLIENT_VOICE; |
| 682 | else { |
| 683 | pr_err("APR: Wrong svc :%d\n", svc); |
| 684 | return; |
| 685 | } |
| 686 | } else if (hdr->src_domain == APR_DOMAIN_ADSP) { |
| 687 | if (svc == APR_SVC_AFE || svc == APR_SVC_ASM || |
| 688 | svc == APR_SVC_VSM || svc == APR_SVC_VPM || |
| 689 | svc == APR_SVC_ADM || svc == APR_SVC_ADSP_CORE || |
| 690 | svc == APR_SVC_USM || |
| 691 | svc == APR_SVC_TEST_CLIENT || svc == APR_SVC_ADSP_MVM || |
| 692 | svc == APR_SVC_ADSP_CVS || svc == APR_SVC_ADSP_CVP || |
| 693 | svc == APR_SVC_LSM) |
| 694 | clnt = APR_CLIENT_AUDIO; |
| 695 | else if (svc == APR_SVC_VIDC) |
| 696 | clnt = APR_CLIENT_AUDIO; |
| 697 | else { |
| 698 | pr_err("APR: Wrong svc :%d\n", svc); |
| 699 | return; |
| 700 | } |
| 701 | } else { |
| 702 | pr_err("APR: Pkt from wrong source: %d\n", hdr->src_domain); |
| 703 | return; |
| 704 | } |
| 705 | |
| 706 | src = apr_get_data_src(hdr); |
| 707 | if (src == APR_DEST_MAX) |
| 708 | return; |
| 709 | |
| 710 | pr_debug("src =%d clnt = %d\n", src, clnt); |
| 711 | apr_client = &client[src][clnt]; |
| 712 | for (i = 0; i < APR_SVC_MAX; i++) |
| 713 | if (apr_client->svc[i].id == svc) { |
| 714 | pr_debug("%d\n", apr_client->svc[i].id); |
| 715 | c_svc = &apr_client->svc[i]; |
| 716 | break; |
| 717 | } |
| 718 | |
| 719 | if (i == APR_SVC_MAX) { |
| 720 | pr_err("APR: service is not registered\n"); |
| 721 | return; |
| 722 | } |
| 723 | pr_debug("svc_idx = %d\n", i); |
| 724 | pr_debug("%x %x %x %pK %pK\n", c_svc->id, c_svc->dest_id, |
| 725 | c_svc->client_id, c_svc->fn, c_svc->priv); |
| 726 | data.payload_size = hdr->pkt_size - hdr_size; |
| 727 | data.opcode = hdr->opcode; |
| 728 | data.src = src; |
| 729 | data.src_port = hdr->src_port; |
| 730 | data.dest_port = hdr->dest_port; |
| 731 | data.token = hdr->token; |
| 732 | data.msg_type = msg_type; |
| 733 | data.payload = NULL; |
| 734 | if (data.payload_size > 0) |
| 735 | data.payload = (char *)hdr + hdr_size; |
| 736 | |
| 737 | if (unlikely(apr_cf_debug)) { |
| 738 | if (hdr->opcode == APR_BASIC_RSP_RESULT && data.payload) { |
| 739 | uint32_t *ptr = data.payload; |
| 740 | |
| 741 | APR_PKT_INFO( |
| 742 | "Rx: src_addr[0x%X] dest_addr[0x%X] opcode[0x%X] token[0x%X] rc[0x%X]", |
| 743 | (hdr->src_domain << 8) | hdr->src_svc, |
| 744 | (hdr->dest_domain << 8) | hdr->dest_svc, |
| 745 | hdr->opcode, hdr->token, ptr[1]); |
| 746 | } else { |
| 747 | APR_PKT_INFO( |
| 748 | "Rx: src_addr[0x%X] dest_addr[0x%X] opcode[0x%X] token[0x%X]", |
| 749 | (hdr->src_domain << 8) | hdr->src_svc, |
| 750 | (hdr->dest_domain << 8) | hdr->dest_svc, hdr->opcode, |
| 751 | hdr->token); |
| 752 | } |
| 753 | } |
| 754 | |
| 755 | temp_port = ((data.dest_port >> 8) * 8) + (data.dest_port & 0xFF); |
Aditya Bavanari | d3047b2 | 2017-11-22 15:29:52 +0530 | [diff] [blame] | 756 | if (((temp_port >= 0) && (temp_port < APR_MAX_PORTS)) |
| 757 | && (c_svc->port_cnt && c_svc->port_fn[temp_port])) |
| 758 | c_svc->port_fn[temp_port](&data, |
| 759 | c_svc->port_priv[temp_port]); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 760 | else if (c_svc->fn) |
| 761 | c_svc->fn(&data, c_svc->priv); |
| 762 | else |
| 763 | pr_err("APR: Rxed a packet for NULL callback\n"); |
| 764 | } |
| 765 | |
| 766 | int apr_get_svc(const char *svc_name, int domain_id, int *client_id, |
| 767 | int *svc_idx, int *svc_id) |
| 768 | { |
| 769 | int i; |
| 770 | int size; |
| 771 | struct apr_svc_table *tbl; |
| 772 | int ret = 0; |
| 773 | |
| 774 | if (domain_id == APR_DOMAIN_ADSP) { |
| 775 | tbl = (struct apr_svc_table *)&svc_tbl_qdsp6; |
| 776 | size = ARRAY_SIZE(svc_tbl_qdsp6); |
| 777 | } else { |
| 778 | tbl = (struct apr_svc_table *)&svc_tbl_voice; |
| 779 | size = ARRAY_SIZE(svc_tbl_voice); |
| 780 | } |
| 781 | |
| 782 | for (i = 0; i < size; i++) { |
| 783 | if (!strcmp(svc_name, tbl[i].name)) { |
| 784 | *client_id = tbl[i].client_id; |
| 785 | *svc_idx = tbl[i].idx; |
| 786 | *svc_id = tbl[i].id; |
| 787 | break; |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | pr_debug("%s: svc_name = %s c_id = %d domain_id = %d\n", |
| 792 | __func__, svc_name, *client_id, domain_id); |
| 793 | if (i == size) { |
| 794 | pr_err("%s: APR: Wrong svc name %s\n", __func__, svc_name); |
| 795 | ret = -EINVAL; |
| 796 | } |
| 797 | |
| 798 | return ret; |
| 799 | } |
| 800 | |
| 801 | static void apr_reset_deregister(struct work_struct *work) |
| 802 | { |
| 803 | struct apr_svc *handle = NULL; |
| 804 | struct apr_reset_work *apr_reset = |
| 805 | container_of(work, struct apr_reset_work, work); |
| 806 | |
| 807 | handle = apr_reset->handle; |
| 808 | pr_debug("%s:handle[%pK]\n", __func__, handle); |
| 809 | apr_deregister(handle); |
| 810 | kfree(apr_reset); |
| 811 | } |
| 812 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 813 | /** |
Banajit Goswami | 8832732 | 2017-12-08 10:51:58 -0800 | [diff] [blame] | 814 | * apr_start_rx_rt - Clients call to vote for thread |
| 815 | * priority upgrade whenever needed. |
| 816 | * |
| 817 | * @handle: APR service handle |
| 818 | * |
| 819 | * Returns 0 on success or error otherwise. |
| 820 | */ |
| 821 | int apr_start_rx_rt(void *handle) |
| 822 | { |
| 823 | int rc = 0; |
| 824 | struct apr_svc *svc = handle; |
| 825 | uint16_t dest_id = 0; |
| 826 | uint16_t client_id = 0; |
| 827 | |
| 828 | if (!svc) { |
| 829 | pr_err("%s: Invalid APR handle\n", __func__); |
| 830 | return -EINVAL; |
| 831 | } |
| 832 | |
| 833 | mutex_lock(&svc->m_lock); |
| 834 | dest_id = svc->dest_id; |
| 835 | client_id = svc->client_id; |
| 836 | |
| 837 | if ((client_id >= APR_CLIENT_MAX) || (dest_id >= APR_DEST_MAX)) { |
| 838 | pr_err("%s: %s invalid. client_id = %u, dest_id = %u\n", |
| 839 | __func__, |
| 840 | client_id >= APR_CLIENT_MAX ? "Client ID" : "Dest ID", |
| 841 | client_id, dest_id); |
| 842 | rc = -EINVAL; |
| 843 | goto exit; |
| 844 | } |
| 845 | |
| 846 | if (!client[dest_id][client_id].handle) { |
| 847 | pr_err("%s: Client handle is NULL\n", __func__); |
| 848 | rc = -EINVAL; |
| 849 | goto exit; |
| 850 | } |
| 851 | |
| 852 | rc = apr_tal_start_rx_rt(client[dest_id][client_id].handle); |
| 853 | if (rc) |
| 854 | pr_err("%s: failed to set RT thread priority for APR RX. rc = %d\n", |
| 855 | __func__, rc); |
| 856 | |
| 857 | exit: |
| 858 | mutex_unlock(&svc->m_lock); |
| 859 | return rc; |
| 860 | } |
| 861 | EXPORT_SYMBOL(apr_start_rx_rt); |
| 862 | |
| 863 | /** |
| 864 | * apr_end_rx_rt - Clients call to unvote for thread |
| 865 | * priority upgrade (perviously voted with |
| 866 | * apr_start_rx_rt()). |
| 867 | * |
| 868 | * @handle: APR service handle |
| 869 | * |
| 870 | * Returns 0 on success or error otherwise. |
| 871 | */ |
| 872 | int apr_end_rx_rt(void *handle) |
| 873 | { |
| 874 | int rc = 0; |
| 875 | struct apr_svc *svc = handle; |
| 876 | uint16_t dest_id = 0; |
| 877 | uint16_t client_id = 0; |
| 878 | |
| 879 | if (!svc) { |
| 880 | pr_err("%s: Invalid APR handle\n", __func__); |
| 881 | return -EINVAL; |
| 882 | } |
| 883 | |
| 884 | mutex_lock(&svc->m_lock); |
| 885 | dest_id = svc->dest_id; |
| 886 | client_id = svc->client_id; |
| 887 | |
| 888 | if ((client_id >= APR_CLIENT_MAX) || (dest_id >= APR_DEST_MAX)) { |
| 889 | pr_err("%s: %s invalid. client_id = %u, dest_id = %u\n", |
| 890 | __func__, |
| 891 | client_id >= APR_CLIENT_MAX ? "Client ID" : "Dest ID", |
| 892 | client_id, dest_id); |
| 893 | rc = -EINVAL; |
| 894 | goto exit; |
| 895 | } |
| 896 | |
| 897 | if (!client[dest_id][client_id].handle) { |
| 898 | pr_err("%s: Client handle is NULL\n", __func__); |
| 899 | rc = -EINVAL; |
| 900 | goto exit; |
| 901 | } |
| 902 | |
| 903 | rc = apr_tal_end_rx_rt(client[dest_id][client_id].handle); |
| 904 | if (rc) |
| 905 | pr_err("%s: failed to reset RT thread priority for APR RX. rc = %d\n", |
| 906 | __func__, rc); |
| 907 | |
| 908 | exit: |
| 909 | mutex_unlock(&svc->m_lock); |
| 910 | return rc; |
| 911 | } |
| 912 | EXPORT_SYMBOL(apr_end_rx_rt); |
| 913 | |
| 914 | /** |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 915 | * apr_deregister - Clients call to de-register |
| 916 | * from APR. |
| 917 | * |
| 918 | * @handle: APR service handle to de-register |
| 919 | * |
| 920 | * Returns 0 on success or -EINVAL on error. |
| 921 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 922 | int apr_deregister(void *handle) |
| 923 | { |
| 924 | struct apr_svc *svc = handle; |
| 925 | struct apr_client *clnt; |
| 926 | uint16_t dest_id; |
| 927 | uint16_t client_id; |
| 928 | |
| 929 | if (!handle) |
| 930 | return -EINVAL; |
| 931 | |
| 932 | mutex_lock(&svc->m_lock); |
| 933 | if (!svc->svc_cnt) { |
| 934 | pr_err("%s: svc already deregistered. svc = %pK\n", |
| 935 | __func__, svc); |
| 936 | mutex_unlock(&svc->m_lock); |
| 937 | return -EINVAL; |
| 938 | } |
| 939 | |
| 940 | dest_id = svc->dest_id; |
| 941 | client_id = svc->client_id; |
| 942 | clnt = &client[dest_id][client_id]; |
| 943 | |
| 944 | if (svc->svc_cnt > 0) { |
| 945 | if (svc->port_cnt) |
| 946 | svc->port_cnt--; |
| 947 | svc->svc_cnt--; |
| 948 | if (!svc->svc_cnt) { |
| 949 | client[dest_id][client_id].svc_cnt--; |
| 950 | pr_debug("%s: service is reset %pK\n", __func__, svc); |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | if (!svc->svc_cnt) { |
| 955 | svc->priv = NULL; |
| 956 | svc->id = 0; |
| 957 | svc->fn = NULL; |
| 958 | svc->dest_id = 0; |
| 959 | svc->client_id = 0; |
| 960 | svc->need_reset = 0x0; |
| 961 | } |
| 962 | if (client[dest_id][client_id].handle && |
| 963 | !client[dest_id][client_id].svc_cnt) { |
| 964 | apr_tal_close(client[dest_id][client_id].handle); |
| 965 | client[dest_id][client_id].handle = NULL; |
| 966 | } |
| 967 | mutex_unlock(&svc->m_lock); |
| 968 | |
| 969 | return 0; |
| 970 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 971 | EXPORT_SYMBOL(apr_deregister); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 972 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 973 | /** |
| 974 | * apr_reset - sets up workqueue to de-register |
| 975 | * the given APR service handle. |
| 976 | * |
| 977 | * @handle: APR service handle |
| 978 | * |
| 979 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 980 | void apr_reset(void *handle) |
| 981 | { |
| 982 | struct apr_reset_work *apr_reset_worker = NULL; |
| 983 | |
| 984 | if (!handle) |
| 985 | return; |
| 986 | pr_debug("%s: handle[%pK]\n", __func__, handle); |
| 987 | |
| 988 | if (apr_reset_workqueue == NULL) { |
| 989 | pr_err("%s: apr_reset_workqueue is NULL\n", __func__); |
| 990 | return; |
| 991 | } |
| 992 | |
| 993 | apr_reset_worker = kzalloc(sizeof(struct apr_reset_work), |
| 994 | GFP_ATOMIC); |
| 995 | |
| 996 | if (apr_reset_worker == NULL) { |
| 997 | pr_err("%s: mem failure\n", __func__); |
| 998 | return; |
| 999 | } |
| 1000 | |
| 1001 | apr_reset_worker->handle = handle; |
| 1002 | INIT_WORK(&apr_reset_worker->work, apr_reset_deregister); |
| 1003 | queue_work(apr_reset_workqueue, &apr_reset_worker->work); |
| 1004 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1005 | EXPORT_SYMBOL(apr_reset); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1006 | |
| 1007 | /* Dispatch the Reset events to Modem and audio clients */ |
| 1008 | static void dispatch_event(unsigned long code, uint16_t proc) |
| 1009 | { |
| 1010 | struct apr_client *apr_client; |
| 1011 | struct apr_client_data data; |
| 1012 | struct apr_svc *svc; |
| 1013 | uint16_t clnt; |
| 1014 | int i, j; |
| 1015 | |
Laxminath Kasam | 8f7ccc2 | 2017-08-28 17:35:04 +0530 | [diff] [blame] | 1016 | memset(&data, 0, sizeof(data)); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1017 | data.opcode = RESET_EVENTS; |
| 1018 | data.reset_event = code; |
| 1019 | |
| 1020 | /* Service domain can be different from the processor */ |
| 1021 | data.reset_proc = apr_get_reset_domain(proc); |
| 1022 | |
| 1023 | clnt = APR_CLIENT_AUDIO; |
| 1024 | apr_client = &client[proc][clnt]; |
| 1025 | for (i = 0; i < APR_SVC_MAX; i++) { |
| 1026 | mutex_lock(&apr_client->svc[i].m_lock); |
| 1027 | if (apr_client->svc[i].fn) { |
| 1028 | apr_client->svc[i].need_reset = 0x1; |
| 1029 | apr_client->svc[i].fn(&data, apr_client->svc[i].priv); |
| 1030 | } |
| 1031 | if (apr_client->svc[i].port_cnt) { |
| 1032 | svc = &(apr_client->svc[i]); |
| 1033 | svc->need_reset = 0x1; |
| 1034 | for (j = 0; j < APR_MAX_PORTS; j++) |
| 1035 | if (svc->port_fn[j]) |
| 1036 | svc->port_fn[j](&data, |
| 1037 | svc->port_priv[j]); |
| 1038 | } |
| 1039 | mutex_unlock(&apr_client->svc[i].m_lock); |
| 1040 | } |
| 1041 | |
| 1042 | clnt = APR_CLIENT_VOICE; |
| 1043 | apr_client = &client[proc][clnt]; |
| 1044 | for (i = 0; i < APR_SVC_MAX; i++) { |
| 1045 | mutex_lock(&apr_client->svc[i].m_lock); |
| 1046 | if (apr_client->svc[i].fn) { |
| 1047 | apr_client->svc[i].need_reset = 0x1; |
| 1048 | apr_client->svc[i].fn(&data, apr_client->svc[i].priv); |
| 1049 | } |
| 1050 | if (apr_client->svc[i].port_cnt) { |
| 1051 | svc = &(apr_client->svc[i]); |
| 1052 | svc->need_reset = 0x1; |
| 1053 | for (j = 0; j < APR_MAX_PORTS; j++) |
| 1054 | if (svc->port_fn[j]) |
| 1055 | svc->port_fn[j](&data, |
| 1056 | svc->port_priv[j]); |
| 1057 | } |
| 1058 | mutex_unlock(&apr_client->svc[i].m_lock); |
| 1059 | } |
| 1060 | } |
| 1061 | |
| 1062 | static int apr_notifier_service_cb(struct notifier_block *this, |
| 1063 | unsigned long opcode, void *data) |
| 1064 | { |
| 1065 | struct audio_notifier_cb_data *cb_data = data; |
| 1066 | |
| 1067 | if (cb_data == NULL) { |
| 1068 | pr_err("%s: Callback data is NULL!\n", __func__); |
| 1069 | goto done; |
| 1070 | } |
| 1071 | |
| 1072 | pr_debug("%s: Service opcode 0x%lx, domain %d\n", |
| 1073 | __func__, opcode, cb_data->domain); |
| 1074 | |
| 1075 | switch (opcode) { |
| 1076 | case AUDIO_NOTIFIER_SERVICE_DOWN: |
| 1077 | /* |
| 1078 | * Use flag to ignore down notifications during |
| 1079 | * initial boot. There is no benefit from error |
| 1080 | * recovery notifications during initial boot |
| 1081 | * up since everything is expected to be down. |
| 1082 | */ |
| 1083 | if (is_initial_boot) { |
| 1084 | is_initial_boot = false; |
| 1085 | break; |
| 1086 | } |
| 1087 | if (cb_data->domain == AUDIO_NOTIFIER_MODEM_DOMAIN) |
| 1088 | apr_modem_down(opcode); |
| 1089 | else |
| 1090 | apr_adsp_down(opcode); |
| 1091 | break; |
| 1092 | case AUDIO_NOTIFIER_SERVICE_UP: |
| 1093 | is_initial_boot = false; |
| 1094 | if (cb_data->domain == AUDIO_NOTIFIER_MODEM_DOMAIN) |
| 1095 | apr_modem_up(); |
| 1096 | else |
| 1097 | apr_adsp_up(); |
| 1098 | break; |
| 1099 | default: |
| 1100 | break; |
| 1101 | } |
| 1102 | done: |
| 1103 | return NOTIFY_OK; |
| 1104 | } |
| 1105 | |
| 1106 | static struct notifier_block adsp_service_nb = { |
| 1107 | .notifier_call = apr_notifier_service_cb, |
| 1108 | .priority = 0, |
| 1109 | }; |
| 1110 | |
| 1111 | static struct notifier_block modem_service_nb = { |
| 1112 | .notifier_call = apr_notifier_service_cb, |
| 1113 | .priority = 0, |
| 1114 | }; |
| 1115 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1116 | #ifdef CONFIG_DEBUG_FS |
| 1117 | static int __init apr_debug_init(void) |
| 1118 | { |
| 1119 | debugfs_apr_debug = debugfs_create_file("msm_apr_debug", |
| 1120 | S_IFREG | 0444, NULL, NULL, |
| 1121 | &apr_debug_ops); |
| 1122 | return 0; |
| 1123 | } |
| 1124 | #else |
| 1125 | static int __init apr_debug_init(void) |
| 1126 | ( |
| 1127 | return 0; |
| 1128 | ) |
| 1129 | #endif |
| 1130 | |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 1131 | static void apr_cleanup(void) |
| 1132 | { |
| 1133 | int i, j, k; |
| 1134 | |
| 1135 | subsys_notif_deregister("apr_modem"); |
| 1136 | subsys_notif_deregister("apr_adsp"); |
| 1137 | if (apr_reset_workqueue) |
| 1138 | destroy_workqueue(apr_reset_workqueue); |
| 1139 | mutex_destroy(&q6.lock); |
| 1140 | for (i = 0; i < APR_DEST_MAX; i++) { |
| 1141 | for (j = 0; j < APR_CLIENT_MAX; j++) { |
| 1142 | mutex_destroy(&client[i][j].m_lock); |
| 1143 | for (k = 0; k < APR_SVC_MAX; k++) |
| 1144 | mutex_destroy(&client[i][j].svc[k].m_lock); |
| 1145 | } |
| 1146 | } |
| 1147 | } |
| 1148 | |
| 1149 | static int apr_probe(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1150 | { |
| 1151 | int i, j, k; |
| 1152 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1153 | init_waitqueue_head(&dsp_wait); |
| 1154 | init_waitqueue_head(&modem_wait); |
| 1155 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1156 | for (i = 0; i < APR_DEST_MAX; i++) |
| 1157 | for (j = 0; j < APR_CLIENT_MAX; j++) { |
| 1158 | mutex_init(&client[i][j].m_lock); |
| 1159 | for (k = 0; k < APR_SVC_MAX; k++) { |
| 1160 | mutex_init(&client[i][j].svc[k].m_lock); |
| 1161 | spin_lock_init(&client[i][j].svc[k].w_lock); |
| 1162 | } |
| 1163 | } |
| 1164 | apr_set_subsys_state(); |
| 1165 | mutex_init(&q6.lock); |
| 1166 | apr_reset_workqueue = create_singlethread_workqueue("apr_driver"); |
| 1167 | if (!apr_reset_workqueue) |
| 1168 | return -ENOMEM; |
| 1169 | |
| 1170 | apr_pkt_ctx = ipc_log_context_create(APR_PKT_IPC_LOG_PAGE_CNT, |
| 1171 | "apr", 0); |
| 1172 | if (!apr_pkt_ctx) |
| 1173 | pr_err("%s: Unable to create ipc log context\n", __func__); |
| 1174 | |
| 1175 | is_initial_boot = true; |
| 1176 | subsys_notif_register("apr_adsp", AUDIO_NOTIFIER_ADSP_DOMAIN, |
| 1177 | &adsp_service_nb); |
| 1178 | subsys_notif_register("apr_modem", AUDIO_NOTIFIER_MODEM_DOMAIN, |
| 1179 | &modem_service_nb); |
| 1180 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1181 | apr_tal_init(); |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 1182 | apr_dev_ptr = &pdev->dev; |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1183 | return apr_debug_init(); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1184 | } |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 1185 | |
| 1186 | static int apr_remove(struct platform_device *pdev) |
| 1187 | { |
| 1188 | apr_cleanup(); |
| 1189 | return 0; |
| 1190 | } |
| 1191 | |
| 1192 | static const struct of_device_id apr_machine_of_match[] = { |
| 1193 | { .compatible = "qcom,msm-audio-apr", }, |
| 1194 | {}, |
| 1195 | }; |
| 1196 | |
| 1197 | static struct platform_driver apr_driver = { |
| 1198 | .probe = apr_probe, |
| 1199 | .remove = apr_remove, |
| 1200 | .driver = { |
| 1201 | .name = "audio_apr", |
| 1202 | .owner = THIS_MODULE, |
| 1203 | .of_match_table = apr_machine_of_match, |
| 1204 | } |
| 1205 | }; |
| 1206 | |
| 1207 | static int __init apr_init(void) |
| 1208 | { |
| 1209 | platform_driver_register(&apr_driver); |
| 1210 | apr_dummy_init(); |
| 1211 | return 0; |
| 1212 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1213 | module_init(apr_init); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1214 | |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 1215 | static void __exit apr_exit(void) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1216 | { |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 1217 | apr_dummy_exit(); |
| 1218 | platform_driver_unregister(&apr_driver); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1219 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1220 | module_exit(apr_exit); |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 1221 | |
| 1222 | MODULE_DESCRIPTION("APR DRIVER"); |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1223 | MODULE_LICENSE("GPL v2"); |
Laxminath Kasam | 31b26c5 | 2018-02-12 16:32:01 +0530 | [diff] [blame] | 1224 | MODULE_DEVICE_TABLE(of, apr_machine_of_match); |