Meng Wang | 43bbb87 | 2018-12-10 12:32:05 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Meng Wang | 61af684 | 2018-09-10 17:47:55 +0800 | [diff] [blame] | 2 | /* |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 3 | * Copyright (c) 2010-2014, 2016-2019 The Linux Foundation. All rights reserved. |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 4 | */ |
| 5 | |
| 6 | #include <linux/kernel.h> |
| 7 | #include <linux/module.h> |
| 8 | #include <linux/types.h> |
| 9 | #include <linux/uaccess.h> |
| 10 | #include <linux/spinlock.h> |
| 11 | #include <linux/list.h> |
| 12 | #include <linux/sched.h> |
| 13 | #include <linux/wait.h> |
| 14 | #include <linux/errno.h> |
| 15 | #include <linux/fs.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/debugfs.h> |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/sysfs.h> |
| 20 | #include <linux/device.h> |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 21 | #include <linux/of.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 22 | #include <linux/slab.h> |
Laxminath Kasam | 605b42f | 2017-08-01 22:02:15 +0530 | [diff] [blame] | 23 | #include <linux/ipc_logging.h> |
Meng Wang | eab9a2b | 2018-05-02 14:55:53 +0800 | [diff] [blame] | 24 | #include <linux/of_platform.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 25 | #include <soc/qcom/subsystem_restart.h> |
| 26 | #include <soc/qcom/scm.h> |
Banajit Goswami | 40bdd6b | 2018-07-20 19:24:54 -0700 | [diff] [blame] | 27 | #include <soc/snd_event.h> |
Laxminath Kasam | 605b42f | 2017-08-01 22:02:15 +0530 | [diff] [blame] | 28 | #include <dsp/apr_audio-v2.h> |
| 29 | #include <dsp/audio_notifier.h> |
| 30 | #include <ipc/apr.h> |
| 31 | #include <ipc/apr_tal.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 32 | |
| 33 | #define APR_PKT_IPC_LOG_PAGE_CNT 2 |
| 34 | |
| 35 | static struct apr_q6 q6; |
| 36 | static struct apr_client client[APR_DEST_MAX][APR_CLIENT_MAX]; |
| 37 | static void *apr_pkt_ctx; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 38 | static wait_queue_head_t modem_wait; |
| 39 | static bool is_modem_up; |
Meng Wang | f71f350 | 2018-05-07 16:59:30 +0800 | [diff] [blame] | 40 | static char *subsys_name = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 41 | /* Subsystem restart: QDSP6 data, functions */ |
| 42 | static struct workqueue_struct *apr_reset_workqueue; |
| 43 | static void apr_reset_deregister(struct work_struct *work); |
| 44 | static void dispatch_event(unsigned long code, uint16_t proc); |
| 45 | struct apr_reset_work { |
| 46 | void *handle; |
| 47 | struct work_struct work; |
| 48 | }; |
| 49 | |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 50 | struct apr_chld_device { |
| 51 | struct platform_device *pdev; |
| 52 | struct list_head node; |
| 53 | }; |
| 54 | |
| 55 | struct apr_private { |
| 56 | struct device *dev; |
| 57 | spinlock_t apr_lock; |
| 58 | bool is_initial_boot; |
| 59 | struct work_struct add_chld_dev_work; |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 60 | }; |
| 61 | |
| 62 | static struct apr_private *apr_priv; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 63 | static bool apr_cf_debug; |
| 64 | |
| 65 | #ifdef CONFIG_DEBUG_FS |
| 66 | static struct dentry *debugfs_apr_debug; |
| 67 | static ssize_t apr_debug_write(struct file *filp, const char __user *ubuf, |
| 68 | size_t cnt, loff_t *ppos) |
| 69 | { |
| 70 | char cmd; |
| 71 | |
| 72 | if (copy_from_user(&cmd, ubuf, 1)) |
| 73 | return -EFAULT; |
| 74 | |
| 75 | apr_cf_debug = (cmd == '1') ? true : false; |
| 76 | |
| 77 | return cnt; |
| 78 | } |
| 79 | |
| 80 | static const struct file_operations apr_debug_ops = { |
| 81 | .write = apr_debug_write, |
| 82 | }; |
| 83 | #endif |
| 84 | |
| 85 | #define APR_PKT_INFO(x...) \ |
| 86 | do { \ |
| 87 | if (apr_pkt_ctx) \ |
| 88 | ipc_log_string(apr_pkt_ctx, "<APR>: "x); \ |
| 89 | } while (0) |
| 90 | |
| 91 | |
| 92 | struct apr_svc_table { |
| 93 | char name[64]; |
| 94 | int idx; |
| 95 | int id; |
| 96 | int client_id; |
| 97 | }; |
| 98 | |
| 99 | static const struct apr_svc_table svc_tbl_qdsp6[] = { |
| 100 | { |
| 101 | .name = "AFE", |
| 102 | .idx = 0, |
| 103 | .id = APR_SVC_AFE, |
| 104 | .client_id = APR_CLIENT_AUDIO, |
| 105 | }, |
| 106 | { |
| 107 | .name = "ASM", |
| 108 | .idx = 1, |
| 109 | .id = APR_SVC_ASM, |
| 110 | .client_id = APR_CLIENT_AUDIO, |
| 111 | }, |
| 112 | { |
| 113 | .name = "ADM", |
| 114 | .idx = 2, |
| 115 | .id = APR_SVC_ADM, |
| 116 | .client_id = APR_CLIENT_AUDIO, |
| 117 | }, |
| 118 | { |
| 119 | .name = "CORE", |
| 120 | .idx = 3, |
| 121 | .id = APR_SVC_ADSP_CORE, |
| 122 | .client_id = APR_CLIENT_AUDIO, |
| 123 | }, |
| 124 | { |
| 125 | .name = "TEST", |
| 126 | .idx = 4, |
| 127 | .id = APR_SVC_TEST_CLIENT, |
| 128 | .client_id = APR_CLIENT_AUDIO, |
| 129 | }, |
| 130 | { |
| 131 | .name = "MVM", |
| 132 | .idx = 5, |
| 133 | .id = APR_SVC_ADSP_MVM, |
| 134 | .client_id = APR_CLIENT_AUDIO, |
| 135 | }, |
| 136 | { |
| 137 | .name = "CVS", |
| 138 | .idx = 6, |
| 139 | .id = APR_SVC_ADSP_CVS, |
| 140 | .client_id = APR_CLIENT_AUDIO, |
| 141 | }, |
| 142 | { |
| 143 | .name = "CVP", |
| 144 | .idx = 7, |
| 145 | .id = APR_SVC_ADSP_CVP, |
| 146 | .client_id = APR_CLIENT_AUDIO, |
| 147 | }, |
| 148 | { |
| 149 | .name = "USM", |
| 150 | .idx = 8, |
| 151 | .id = APR_SVC_USM, |
| 152 | .client_id = APR_CLIENT_AUDIO, |
| 153 | }, |
| 154 | { |
| 155 | .name = "VIDC", |
| 156 | .idx = 9, |
| 157 | .id = APR_SVC_VIDC, |
| 158 | }, |
| 159 | { |
| 160 | .name = "LSM", |
| 161 | .idx = 10, |
| 162 | .id = APR_SVC_LSM, |
| 163 | .client_id = APR_CLIENT_AUDIO, |
| 164 | }, |
| 165 | }; |
| 166 | |
| 167 | static struct apr_svc_table svc_tbl_voice[] = { |
| 168 | { |
| 169 | .name = "VSM", |
| 170 | .idx = 0, |
| 171 | .id = APR_SVC_VSM, |
| 172 | .client_id = APR_CLIENT_VOICE, |
| 173 | }, |
| 174 | { |
| 175 | .name = "VPM", |
| 176 | .idx = 1, |
| 177 | .id = APR_SVC_VPM, |
| 178 | .client_id = APR_CLIENT_VOICE, |
| 179 | }, |
| 180 | { |
| 181 | .name = "MVS", |
| 182 | .idx = 2, |
| 183 | .id = APR_SVC_MVS, |
| 184 | .client_id = APR_CLIENT_VOICE, |
| 185 | }, |
| 186 | { |
| 187 | .name = "MVM", |
| 188 | .idx = 3, |
| 189 | .id = APR_SVC_MVM, |
| 190 | .client_id = APR_CLIENT_VOICE, |
| 191 | }, |
| 192 | { |
| 193 | .name = "CVS", |
| 194 | .idx = 4, |
| 195 | .id = APR_SVC_CVS, |
| 196 | .client_id = APR_CLIENT_VOICE, |
| 197 | }, |
| 198 | { |
| 199 | .name = "CVP", |
| 200 | .idx = 5, |
| 201 | .id = APR_SVC_CVP, |
| 202 | .client_id = APR_CLIENT_VOICE, |
| 203 | }, |
| 204 | { |
| 205 | .name = "SRD", |
| 206 | .idx = 6, |
| 207 | .id = APR_SVC_SRD, |
| 208 | .client_id = APR_CLIENT_VOICE, |
| 209 | }, |
| 210 | { |
| 211 | .name = "TEST", |
| 212 | .idx = 7, |
| 213 | .id = APR_SVC_TEST_CLIENT, |
| 214 | .client_id = APR_CLIENT_VOICE, |
| 215 | }, |
| 216 | }; |
| 217 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 218 | /** |
| 219 | * apr_get_modem_state: |
| 220 | * |
| 221 | * Returns current modem load status |
| 222 | * |
| 223 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 224 | enum apr_subsys_state apr_get_modem_state(void) |
| 225 | { |
| 226 | return atomic_read(&q6.modem_state); |
| 227 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 228 | EXPORT_SYMBOL(apr_get_modem_state); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 229 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 230 | /** |
| 231 | * apr_set_modem_state - Update modem load status. |
| 232 | * |
| 233 | * @state: State to update modem load status |
| 234 | * |
| 235 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 236 | void apr_set_modem_state(enum apr_subsys_state state) |
| 237 | { |
| 238 | atomic_set(&q6.modem_state, state); |
| 239 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 240 | EXPORT_SYMBOL(apr_set_modem_state); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 241 | |
| 242 | enum apr_subsys_state apr_cmpxchg_modem_state(enum apr_subsys_state prev, |
| 243 | enum apr_subsys_state new) |
| 244 | { |
| 245 | return atomic_cmpxchg(&q6.modem_state, prev, new); |
| 246 | } |
| 247 | |
| 248 | static void apr_modem_down(unsigned long opcode) |
| 249 | { |
| 250 | apr_set_modem_state(APR_SUBSYS_DOWN); |
| 251 | dispatch_event(opcode, APR_DEST_MODEM); |
| 252 | } |
| 253 | |
| 254 | static void apr_modem_up(void) |
| 255 | { |
| 256 | if (apr_cmpxchg_modem_state(APR_SUBSYS_DOWN, APR_SUBSYS_UP) == |
| 257 | APR_SUBSYS_DOWN) |
| 258 | wake_up(&modem_wait); |
| 259 | is_modem_up = 1; |
| 260 | } |
| 261 | |
| 262 | enum apr_subsys_state apr_get_q6_state(void) |
| 263 | { |
| 264 | return atomic_read(&q6.q6_state); |
| 265 | } |
| 266 | EXPORT_SYMBOL(apr_get_q6_state); |
| 267 | |
| 268 | int apr_set_q6_state(enum apr_subsys_state state) |
| 269 | { |
| 270 | pr_debug("%s: setting adsp state %d\n", __func__, state); |
| 271 | if (state < APR_SUBSYS_DOWN || state > APR_SUBSYS_LOADED) |
| 272 | return -EINVAL; |
| 273 | atomic_set(&q6.q6_state, state); |
| 274 | return 0; |
| 275 | } |
| 276 | EXPORT_SYMBOL(apr_set_q6_state); |
| 277 | |
Banajit Goswami | 40bdd6b | 2018-07-20 19:24:54 -0700 | [diff] [blame] | 278 | static void apr_ssr_disable(struct device *dev, void *data) |
| 279 | { |
| 280 | apr_set_q6_state(APR_SUBSYS_DOWN); |
| 281 | } |
| 282 | |
| 283 | static const struct snd_event_ops apr_ssr_ops = { |
| 284 | .disable = apr_ssr_disable, |
| 285 | }; |
| 286 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 287 | static void apr_adsp_down(unsigned long opcode) |
| 288 | { |
Meng Wang | eab9a2b | 2018-05-02 14:55:53 +0800 | [diff] [blame] | 289 | pr_info("%s: Q6 is Down\n", __func__); |
Banajit Goswami | 40bdd6b | 2018-07-20 19:24:54 -0700 | [diff] [blame] | 290 | snd_event_notify(apr_priv->dev, SND_EVENT_DOWN); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 291 | apr_set_q6_state(APR_SUBSYS_DOWN); |
| 292 | dispatch_event(opcode, APR_DEST_QDSP6); |
| 293 | } |
| 294 | |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 295 | static void apr_add_child_devices(struct work_struct *work) |
| 296 | { |
| 297 | int ret; |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 298 | |
Meng Wang | eab9a2b | 2018-05-02 14:55:53 +0800 | [diff] [blame] | 299 | ret = of_platform_populate(apr_priv->dev->of_node, |
| 300 | NULL, NULL, apr_priv->dev); |
| 301 | if (ret) |
| 302 | dev_err(apr_priv->dev, "%s: failed to add child nodes, ret=%d\n", |
| 303 | __func__, ret); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 304 | } |
| 305 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 306 | static void apr_adsp_up(void) |
| 307 | { |
Meng Wang | eab9a2b | 2018-05-02 14:55:53 +0800 | [diff] [blame] | 308 | pr_info("%s: Q6 is Up\n", __func__); |
Meng Wang | a6092af | 2018-05-07 15:08:26 +0800 | [diff] [blame] | 309 | apr_set_q6_state(APR_SUBSYS_LOADED); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 310 | |
| 311 | spin_lock(&apr_priv->apr_lock); |
| 312 | if (apr_priv->is_initial_boot) |
| 313 | schedule_work(&apr_priv->add_chld_dev_work); |
| 314 | spin_unlock(&apr_priv->apr_lock); |
Banajit Goswami | 40bdd6b | 2018-07-20 19:24:54 -0700 | [diff] [blame] | 315 | snd_event_notify(apr_priv->dev, SND_EVENT_UP); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 316 | } |
| 317 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 318 | int apr_load_adsp_image(void) |
| 319 | { |
| 320 | int rc = 0; |
| 321 | |
| 322 | mutex_lock(&q6.lock); |
| 323 | if (apr_get_q6_state() == APR_SUBSYS_UP) { |
| 324 | q6.pil = subsystem_get("adsp"); |
| 325 | if (IS_ERR(q6.pil)) { |
| 326 | rc = PTR_ERR(q6.pil); |
| 327 | pr_err("APR: Unable to load q6 image, error:%d\n", rc); |
| 328 | } else { |
| 329 | apr_set_q6_state(APR_SUBSYS_LOADED); |
| 330 | pr_debug("APR: Image is loaded, stated\n"); |
| 331 | } |
| 332 | } else if (apr_get_q6_state() == APR_SUBSYS_LOADED) { |
| 333 | pr_debug("APR: q6 image already loaded\n"); |
| 334 | } else { |
| 335 | pr_debug("APR: cannot load state %d\n", apr_get_q6_state()); |
| 336 | } |
| 337 | mutex_unlock(&q6.lock); |
| 338 | return rc; |
| 339 | } |
| 340 | |
| 341 | struct apr_client *apr_get_client(int dest_id, int client_id) |
| 342 | { |
| 343 | return &client[dest_id][client_id]; |
| 344 | } |
| 345 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 346 | /** |
| 347 | * apr_send_pkt - Clients call to send packet |
| 348 | * to destination processor. |
| 349 | * |
| 350 | * @handle: APR service handle |
| 351 | * @buf: payload to send to destination processor. |
| 352 | * |
| 353 | * Returns Bytes(>0)pkt_size on success or error on failure. |
| 354 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 355 | int apr_send_pkt(void *handle, uint32_t *buf) |
| 356 | { |
| 357 | struct apr_svc *svc = handle; |
| 358 | struct apr_client *clnt; |
| 359 | struct apr_hdr *hdr; |
| 360 | uint16_t dest_id; |
| 361 | uint16_t client_id; |
| 362 | uint16_t w_len; |
| 363 | int rc; |
| 364 | unsigned long flags; |
| 365 | |
| 366 | if (!handle || !buf) { |
Karthikeyan Mani | 5670cbd | 2019-03-21 18:00:51 -0700 | [diff] [blame] | 367 | pr_err("APR: Wrong parameters for %s\n", |
| 368 | !handle ? "handle" : "buf"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 369 | return -EINVAL; |
| 370 | } |
| 371 | if (svc->need_reset) { |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 372 | pr_err_ratelimited("apr: send_pkt service need reset\n"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 373 | return -ENETRESET; |
| 374 | } |
| 375 | |
| 376 | if ((svc->dest_id == APR_DEST_QDSP6) && |
| 377 | (apr_get_q6_state() != APR_SUBSYS_LOADED)) { |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 378 | pr_err_ratelimited("%s: Still dsp is not Up\n", __func__); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 379 | return -ENETRESET; |
| 380 | } else if ((svc->dest_id == APR_DEST_MODEM) && |
| 381 | (apr_get_modem_state() == APR_SUBSYS_DOWN)) { |
| 382 | pr_err("apr: Still Modem is not Up\n"); |
| 383 | return -ENETRESET; |
| 384 | } |
| 385 | |
| 386 | spin_lock_irqsave(&svc->w_lock, flags); |
| 387 | dest_id = svc->dest_id; |
| 388 | client_id = svc->client_id; |
| 389 | clnt = &client[dest_id][client_id]; |
| 390 | |
| 391 | if (!client[dest_id][client_id].handle) { |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 392 | pr_err_ratelimited("APR: Still service is not yet opened\n"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 393 | spin_unlock_irqrestore(&svc->w_lock, flags); |
| 394 | return -EINVAL; |
| 395 | } |
| 396 | hdr = (struct apr_hdr *)buf; |
| 397 | |
| 398 | hdr->src_domain = APR_DOMAIN_APPS; |
| 399 | hdr->src_svc = svc->id; |
| 400 | hdr->dest_domain = svc->dest_domain; |
| 401 | hdr->dest_svc = svc->id; |
| 402 | |
| 403 | if (unlikely(apr_cf_debug)) { |
| 404 | APR_PKT_INFO( |
| 405 | "Tx: src_addr[0x%X] dest_addr[0x%X] opcode[0x%X] token[0x%X]", |
| 406 | (hdr->src_domain << 8) | hdr->src_svc, |
| 407 | (hdr->dest_domain << 8) | hdr->dest_svc, hdr->opcode, |
| 408 | hdr->token); |
| 409 | } |
| 410 | |
| 411 | rc = apr_tal_write(clnt->handle, buf, |
| 412 | (struct apr_pkt_priv *)&svc->pkt_owner, |
| 413 | hdr->pkt_size); |
| 414 | if (rc >= 0) { |
| 415 | w_len = rc; |
| 416 | if (w_len != hdr->pkt_size) { |
| 417 | pr_err("%s: Unable to write whole APR pkt successfully: %d\n", |
| 418 | __func__, rc); |
| 419 | rc = -EINVAL; |
| 420 | } |
| 421 | } else { |
Ramprasad Katkam | b91472b | 2019-02-19 19:35:55 +0530 | [diff] [blame] | 422 | pr_err_ratelimited("%s: Write APR pkt failed with error %d\n", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 423 | __func__, rc); |
Ramprasad Katkam | b91472b | 2019-02-19 19:35:55 +0530 | [diff] [blame] | 424 | if (rc == -ECONNRESET) { |
| 425 | pr_err_ratelimited("%s: Received reset error from tal\n", |
| 426 | __func__); |
| 427 | rc = -ENETRESET; |
| 428 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 429 | } |
| 430 | spin_unlock_irqrestore(&svc->w_lock, flags); |
| 431 | |
| 432 | return rc; |
| 433 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 434 | EXPORT_SYMBOL(apr_send_pkt); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 435 | |
| 436 | int apr_pkt_config(void *handle, struct apr_pkt_cfg *cfg) |
| 437 | { |
| 438 | struct apr_svc *svc = (struct apr_svc *)handle; |
| 439 | uint16_t dest_id; |
| 440 | uint16_t client_id; |
| 441 | struct apr_client *clnt; |
| 442 | |
| 443 | if (!handle) { |
| 444 | pr_err("%s: Invalid handle\n", __func__); |
| 445 | return -EINVAL; |
| 446 | } |
| 447 | |
| 448 | if (svc->need_reset) { |
| 449 | pr_err("%s: service need reset\n", __func__); |
| 450 | return -ENETRESET; |
| 451 | } |
| 452 | |
| 453 | svc->pkt_owner = cfg->pkt_owner; |
| 454 | dest_id = svc->dest_id; |
| 455 | client_id = svc->client_id; |
| 456 | clnt = &client[dest_id][client_id]; |
| 457 | |
| 458 | return apr_tal_rx_intents_config(clnt->handle, |
| 459 | cfg->intents.num_of_intents, cfg->intents.size); |
| 460 | } |
| 461 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 462 | /** |
| 463 | * apr_register - Clients call to register |
| 464 | * to APR. |
| 465 | * |
| 466 | * @dest: destination processor |
| 467 | * @svc_name: name of service to register as |
| 468 | * @svc_fn: callback function to trigger when response |
| 469 | * ack or packets received from destination processor. |
| 470 | * @src_port: Port number within a service |
| 471 | * @priv: private data of client, passed back in cb fn. |
| 472 | * |
| 473 | * Returns apr_svc handle on success or NULL on failure. |
| 474 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 475 | struct apr_svc *apr_register(char *dest, char *svc_name, apr_fn svc_fn, |
| 476 | uint32_t src_port, void *priv) |
| 477 | { |
| 478 | struct apr_client *clnt; |
| 479 | int client_id = 0; |
| 480 | int svc_idx = 0; |
| 481 | int svc_id = 0; |
| 482 | int dest_id = 0; |
| 483 | int domain_id = 0; |
| 484 | int temp_port = 0; |
| 485 | struct apr_svc *svc = NULL; |
| 486 | int rc = 0; |
| 487 | bool can_open_channel = true; |
| 488 | |
| 489 | if (!dest || !svc_name || !svc_fn) |
| 490 | return NULL; |
| 491 | |
| 492 | if (!strcmp(dest, "ADSP")) |
| 493 | domain_id = APR_DOMAIN_ADSP; |
| 494 | else if (!strcmp(dest, "MODEM")) { |
| 495 | /* Don't request for SMD channels if destination is MODEM, |
| 496 | * as these channels are no longer used and these clients |
| 497 | * are to listen only for MODEM SSR events |
| 498 | */ |
| 499 | can_open_channel = false; |
| 500 | domain_id = APR_DOMAIN_MODEM; |
| 501 | } else { |
| 502 | pr_err("APR: wrong destination\n"); |
| 503 | goto done; |
| 504 | } |
| 505 | |
| 506 | dest_id = apr_get_dest_id(dest); |
| 507 | |
| 508 | if (dest_id == APR_DEST_QDSP6) { |
| 509 | if (apr_get_q6_state() != APR_SUBSYS_LOADED) { |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 510 | pr_err_ratelimited("%s: adsp not up\n", __func__); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 511 | return NULL; |
| 512 | } |
| 513 | pr_debug("%s: adsp Up\n", __func__); |
| 514 | } else if (dest_id == APR_DEST_MODEM) { |
| 515 | if (apr_get_modem_state() == APR_SUBSYS_DOWN) { |
| 516 | if (is_modem_up) { |
| 517 | pr_err("%s: modem shutdown due to SSR, ret", |
| 518 | __func__); |
| 519 | return NULL; |
| 520 | } |
| 521 | pr_debug("%s: Wait for modem to bootup\n", __func__); |
Meng Wang | a6092af | 2018-05-07 15:08:26 +0800 | [diff] [blame] | 522 | rc = wait_event_interruptible_timeout(modem_wait, |
| 523 | (apr_get_modem_state() == APR_SUBSYS_UP), |
| 524 | (1 * HZ)); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 525 | if (rc == 0) { |
| 526 | pr_err("%s: Modem is not Up\n", __func__); |
| 527 | return NULL; |
| 528 | } |
| 529 | } |
| 530 | pr_debug("%s: modem Up\n", __func__); |
| 531 | } |
| 532 | |
| 533 | if (apr_get_svc(svc_name, domain_id, &client_id, &svc_idx, &svc_id)) { |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 534 | pr_err_ratelimited("%s: apr_get_svc failed\n", __func__); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 535 | goto done; |
| 536 | } |
| 537 | |
| 538 | clnt = &client[dest_id][client_id]; |
| 539 | mutex_lock(&clnt->m_lock); |
| 540 | if (!clnt->handle && can_open_channel) { |
| 541 | clnt->handle = apr_tal_open(client_id, dest_id, |
| 542 | APR_DL_SMD, apr_cb_func, NULL); |
| 543 | if (!clnt->handle) { |
| 544 | svc = NULL; |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 545 | pr_err_ratelimited("APR: Unable to open handle\n"); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 546 | mutex_unlock(&clnt->m_lock); |
| 547 | goto done; |
| 548 | } |
| 549 | } |
| 550 | mutex_unlock(&clnt->m_lock); |
| 551 | svc = &clnt->svc[svc_idx]; |
| 552 | mutex_lock(&svc->m_lock); |
| 553 | clnt->id = client_id; |
| 554 | if (svc->need_reset) { |
| 555 | mutex_unlock(&svc->m_lock); |
Laxminath Kasam | c910c02 | 2018-04-04 10:59:57 +0530 | [diff] [blame] | 556 | pr_err_ratelimited("APR: Service needs reset\n"); |
Vidyakumar Athota | 0b9c8c1 | 2018-08-14 10:57:27 -0700 | [diff] [blame] | 557 | svc = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 558 | goto done; |
| 559 | } |
| 560 | svc->id = svc_id; |
| 561 | svc->dest_id = dest_id; |
| 562 | svc->client_id = client_id; |
| 563 | svc->dest_domain = domain_id; |
| 564 | svc->pkt_owner = APR_PKT_OWNER_DRIVER; |
| 565 | |
| 566 | if (src_port != 0xFFFFFFFF) { |
| 567 | temp_port = ((src_port >> 8) * 8) + (src_port & 0xFF); |
| 568 | pr_debug("port = %d t_port = %d\n", src_port, temp_port); |
| 569 | if (temp_port >= APR_MAX_PORTS || temp_port < 0) { |
| 570 | pr_err("APR: temp_port out of bounds\n"); |
| 571 | mutex_unlock(&svc->m_lock); |
| 572 | return NULL; |
| 573 | } |
| 574 | if (!svc->svc_cnt) |
| 575 | clnt->svc_cnt++; |
| 576 | svc->port_cnt++; |
| 577 | svc->port_fn[temp_port] = svc_fn; |
| 578 | svc->port_priv[temp_port] = priv; |
| 579 | svc->svc_cnt++; |
| 580 | } else { |
| 581 | if (!svc->fn) { |
| 582 | if (!svc->svc_cnt) |
| 583 | clnt->svc_cnt++; |
| 584 | svc->fn = svc_fn; |
| 585 | svc->priv = priv; |
| 586 | svc->svc_cnt++; |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | mutex_unlock(&svc->m_lock); |
| 591 | done: |
| 592 | return svc; |
| 593 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 594 | EXPORT_SYMBOL(apr_register); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 595 | |
| 596 | |
| 597 | void apr_cb_func(void *buf, int len, void *priv) |
| 598 | { |
| 599 | struct apr_client_data data; |
| 600 | struct apr_client *apr_client; |
| 601 | struct apr_svc *c_svc; |
| 602 | struct apr_hdr *hdr; |
| 603 | uint16_t hdr_size; |
| 604 | uint16_t msg_type; |
| 605 | uint16_t ver; |
| 606 | uint16_t src; |
| 607 | uint16_t svc; |
| 608 | uint16_t clnt; |
| 609 | int i; |
| 610 | int temp_port = 0; |
| 611 | uint32_t *ptr; |
| 612 | |
| 613 | pr_debug("APR2: len = %d\n", len); |
| 614 | ptr = buf; |
| 615 | pr_debug("\n*****************\n"); |
| 616 | for (i = 0; i < len/4; i++) |
| 617 | pr_debug("%x ", ptr[i]); |
| 618 | pr_debug("\n"); |
| 619 | pr_debug("\n*****************\n"); |
| 620 | |
| 621 | if (!buf || len <= APR_HDR_SIZE) { |
| 622 | pr_err("APR: Improper apr pkt received:%pK %d\n", buf, len); |
| 623 | return; |
| 624 | } |
| 625 | hdr = buf; |
| 626 | |
| 627 | ver = hdr->hdr_field; |
| 628 | ver = (ver & 0x000F); |
| 629 | if (ver > APR_PKT_VER + 1) { |
| 630 | pr_err("APR: Wrong version: %d\n", ver); |
| 631 | return; |
| 632 | } |
| 633 | |
| 634 | hdr_size = hdr->hdr_field; |
| 635 | hdr_size = ((hdr_size & 0x00F0) >> 0x4) * 4; |
| 636 | if (hdr_size < APR_HDR_SIZE) { |
| 637 | pr_err("APR: Wrong hdr size:%d\n", hdr_size); |
| 638 | return; |
| 639 | } |
| 640 | |
| 641 | if (hdr->pkt_size < APR_HDR_SIZE) { |
| 642 | pr_err("APR: Wrong paket size\n"); |
| 643 | return; |
| 644 | } |
Karthikeyan Mani | eca1a39 | 2019-01-15 16:36:08 -0800 | [diff] [blame] | 645 | |
| 646 | if (hdr->pkt_size < hdr_size) { |
| 647 | pr_err("APR: Packet size less than header size\n"); |
| 648 | return; |
| 649 | } |
| 650 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 651 | msg_type = hdr->hdr_field; |
| 652 | msg_type = (msg_type >> 0x08) & 0x0003; |
| 653 | if (msg_type >= APR_MSG_TYPE_MAX && msg_type != APR_BASIC_RSP_RESULT) { |
| 654 | pr_err("APR: Wrong message type: %d\n", msg_type); |
| 655 | return; |
| 656 | } |
| 657 | |
| 658 | if (hdr->src_domain >= APR_DOMAIN_MAX || |
| 659 | hdr->dest_domain >= APR_DOMAIN_MAX || |
| 660 | hdr->src_svc >= APR_SVC_MAX || |
| 661 | hdr->dest_svc >= APR_SVC_MAX) { |
| 662 | pr_err("APR: Wrong APR header\n"); |
| 663 | return; |
| 664 | } |
| 665 | |
| 666 | svc = hdr->dest_svc; |
| 667 | if (hdr->src_domain == APR_DOMAIN_MODEM) { |
| 668 | if (svc == APR_SVC_MVS || svc == APR_SVC_MVM || |
| 669 | svc == APR_SVC_CVS || svc == APR_SVC_CVP || |
| 670 | svc == APR_SVC_TEST_CLIENT) |
| 671 | clnt = APR_CLIENT_VOICE; |
| 672 | else { |
| 673 | pr_err("APR: Wrong svc :%d\n", svc); |
| 674 | return; |
| 675 | } |
| 676 | } else if (hdr->src_domain == APR_DOMAIN_ADSP) { |
| 677 | if (svc == APR_SVC_AFE || svc == APR_SVC_ASM || |
| 678 | svc == APR_SVC_VSM || svc == APR_SVC_VPM || |
| 679 | svc == APR_SVC_ADM || svc == APR_SVC_ADSP_CORE || |
| 680 | svc == APR_SVC_USM || |
| 681 | svc == APR_SVC_TEST_CLIENT || svc == APR_SVC_ADSP_MVM || |
| 682 | svc == APR_SVC_ADSP_CVS || svc == APR_SVC_ADSP_CVP || |
| 683 | svc == APR_SVC_LSM) |
| 684 | clnt = APR_CLIENT_AUDIO; |
| 685 | else if (svc == APR_SVC_VIDC) |
| 686 | clnt = APR_CLIENT_AUDIO; |
| 687 | else { |
| 688 | pr_err("APR: Wrong svc :%d\n", svc); |
| 689 | return; |
| 690 | } |
| 691 | } else { |
| 692 | pr_err("APR: Pkt from wrong source: %d\n", hdr->src_domain); |
| 693 | return; |
| 694 | } |
| 695 | |
| 696 | src = apr_get_data_src(hdr); |
| 697 | if (src == APR_DEST_MAX) |
| 698 | return; |
| 699 | |
| 700 | pr_debug("src =%d clnt = %d\n", src, clnt); |
| 701 | apr_client = &client[src][clnt]; |
| 702 | for (i = 0; i < APR_SVC_MAX; i++) |
| 703 | if (apr_client->svc[i].id == svc) { |
| 704 | pr_debug("%d\n", apr_client->svc[i].id); |
| 705 | c_svc = &apr_client->svc[i]; |
| 706 | break; |
| 707 | } |
| 708 | |
| 709 | if (i == APR_SVC_MAX) { |
| 710 | pr_err("APR: service is not registered\n"); |
| 711 | return; |
| 712 | } |
| 713 | pr_debug("svc_idx = %d\n", i); |
| 714 | pr_debug("%x %x %x %pK %pK\n", c_svc->id, c_svc->dest_id, |
| 715 | c_svc->client_id, c_svc->fn, c_svc->priv); |
| 716 | data.payload_size = hdr->pkt_size - hdr_size; |
| 717 | data.opcode = hdr->opcode; |
| 718 | data.src = src; |
| 719 | data.src_port = hdr->src_port; |
| 720 | data.dest_port = hdr->dest_port; |
| 721 | data.token = hdr->token; |
| 722 | data.msg_type = msg_type; |
| 723 | data.payload = NULL; |
| 724 | if (data.payload_size > 0) |
| 725 | data.payload = (char *)hdr + hdr_size; |
| 726 | |
| 727 | if (unlikely(apr_cf_debug)) { |
| 728 | if (hdr->opcode == APR_BASIC_RSP_RESULT && data.payload) { |
| 729 | uint32_t *ptr = data.payload; |
| 730 | |
| 731 | APR_PKT_INFO( |
| 732 | "Rx: src_addr[0x%X] dest_addr[0x%X] opcode[0x%X] token[0x%X] rc[0x%X]", |
| 733 | (hdr->src_domain << 8) | hdr->src_svc, |
| 734 | (hdr->dest_domain << 8) | hdr->dest_svc, |
| 735 | hdr->opcode, hdr->token, ptr[1]); |
| 736 | } else { |
| 737 | APR_PKT_INFO( |
| 738 | "Rx: src_addr[0x%X] dest_addr[0x%X] opcode[0x%X] token[0x%X]", |
| 739 | (hdr->src_domain << 8) | hdr->src_svc, |
| 740 | (hdr->dest_domain << 8) | hdr->dest_svc, hdr->opcode, |
| 741 | hdr->token); |
| 742 | } |
| 743 | } |
| 744 | |
| 745 | temp_port = ((data.dest_port >> 8) * 8) + (data.dest_port & 0xFF); |
Aditya Bavanari | d3047b2 | 2017-11-22 15:29:52 +0530 | [diff] [blame] | 746 | if (((temp_port >= 0) && (temp_port < APR_MAX_PORTS)) |
| 747 | && (c_svc->port_cnt && c_svc->port_fn[temp_port])) |
| 748 | c_svc->port_fn[temp_port](&data, |
| 749 | c_svc->port_priv[temp_port]); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 750 | else if (c_svc->fn) |
| 751 | c_svc->fn(&data, c_svc->priv); |
| 752 | else |
| 753 | pr_err("APR: Rxed a packet for NULL callback\n"); |
| 754 | } |
| 755 | |
| 756 | int apr_get_svc(const char *svc_name, int domain_id, int *client_id, |
| 757 | int *svc_idx, int *svc_id) |
| 758 | { |
| 759 | int i; |
| 760 | int size; |
| 761 | struct apr_svc_table *tbl; |
| 762 | int ret = 0; |
| 763 | |
| 764 | if (domain_id == APR_DOMAIN_ADSP) { |
| 765 | tbl = (struct apr_svc_table *)&svc_tbl_qdsp6; |
| 766 | size = ARRAY_SIZE(svc_tbl_qdsp6); |
| 767 | } else { |
| 768 | tbl = (struct apr_svc_table *)&svc_tbl_voice; |
| 769 | size = ARRAY_SIZE(svc_tbl_voice); |
| 770 | } |
| 771 | |
| 772 | for (i = 0; i < size; i++) { |
| 773 | if (!strcmp(svc_name, tbl[i].name)) { |
| 774 | *client_id = tbl[i].client_id; |
| 775 | *svc_idx = tbl[i].idx; |
| 776 | *svc_id = tbl[i].id; |
| 777 | break; |
| 778 | } |
| 779 | } |
| 780 | |
| 781 | pr_debug("%s: svc_name = %s c_id = %d domain_id = %d\n", |
| 782 | __func__, svc_name, *client_id, domain_id); |
| 783 | if (i == size) { |
| 784 | pr_err("%s: APR: Wrong svc name %s\n", __func__, svc_name); |
| 785 | ret = -EINVAL; |
| 786 | } |
| 787 | |
| 788 | return ret; |
| 789 | } |
| 790 | |
| 791 | static void apr_reset_deregister(struct work_struct *work) |
| 792 | { |
| 793 | struct apr_svc *handle = NULL; |
| 794 | struct apr_reset_work *apr_reset = |
| 795 | container_of(work, struct apr_reset_work, work); |
| 796 | |
| 797 | handle = apr_reset->handle; |
| 798 | pr_debug("%s:handle[%pK]\n", __func__, handle); |
| 799 | apr_deregister(handle); |
| 800 | kfree(apr_reset); |
| 801 | } |
| 802 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 803 | /** |
Banajit Goswami | 8832732 | 2017-12-08 10:51:58 -0800 | [diff] [blame] | 804 | * apr_start_rx_rt - Clients call to vote for thread |
| 805 | * priority upgrade whenever needed. |
| 806 | * |
| 807 | * @handle: APR service handle |
| 808 | * |
| 809 | * Returns 0 on success or error otherwise. |
| 810 | */ |
| 811 | int apr_start_rx_rt(void *handle) |
| 812 | { |
| 813 | int rc = 0; |
| 814 | struct apr_svc *svc = handle; |
| 815 | uint16_t dest_id = 0; |
| 816 | uint16_t client_id = 0; |
| 817 | |
| 818 | if (!svc) { |
| 819 | pr_err("%s: Invalid APR handle\n", __func__); |
| 820 | return -EINVAL; |
| 821 | } |
| 822 | |
| 823 | mutex_lock(&svc->m_lock); |
| 824 | dest_id = svc->dest_id; |
| 825 | client_id = svc->client_id; |
| 826 | |
| 827 | if ((client_id >= APR_CLIENT_MAX) || (dest_id >= APR_DEST_MAX)) { |
| 828 | pr_err("%s: %s invalid. client_id = %u, dest_id = %u\n", |
| 829 | __func__, |
| 830 | client_id >= APR_CLIENT_MAX ? "Client ID" : "Dest ID", |
| 831 | client_id, dest_id); |
| 832 | rc = -EINVAL; |
| 833 | goto exit; |
| 834 | } |
| 835 | |
| 836 | if (!client[dest_id][client_id].handle) { |
| 837 | pr_err("%s: Client handle is NULL\n", __func__); |
| 838 | rc = -EINVAL; |
| 839 | goto exit; |
| 840 | } |
| 841 | |
| 842 | rc = apr_tal_start_rx_rt(client[dest_id][client_id].handle); |
| 843 | if (rc) |
| 844 | pr_err("%s: failed to set RT thread priority for APR RX. rc = %d\n", |
| 845 | __func__, rc); |
| 846 | |
| 847 | exit: |
| 848 | mutex_unlock(&svc->m_lock); |
| 849 | return rc; |
| 850 | } |
| 851 | EXPORT_SYMBOL(apr_start_rx_rt); |
| 852 | |
| 853 | /** |
| 854 | * apr_end_rx_rt - Clients call to unvote for thread |
| 855 | * priority upgrade (perviously voted with |
| 856 | * apr_start_rx_rt()). |
| 857 | * |
| 858 | * @handle: APR service handle |
| 859 | * |
| 860 | * Returns 0 on success or error otherwise. |
| 861 | */ |
| 862 | int apr_end_rx_rt(void *handle) |
| 863 | { |
| 864 | int rc = 0; |
| 865 | struct apr_svc *svc = handle; |
| 866 | uint16_t dest_id = 0; |
| 867 | uint16_t client_id = 0; |
| 868 | |
| 869 | if (!svc) { |
| 870 | pr_err("%s: Invalid APR handle\n", __func__); |
| 871 | return -EINVAL; |
| 872 | } |
| 873 | |
| 874 | mutex_lock(&svc->m_lock); |
| 875 | dest_id = svc->dest_id; |
| 876 | client_id = svc->client_id; |
| 877 | |
| 878 | if ((client_id >= APR_CLIENT_MAX) || (dest_id >= APR_DEST_MAX)) { |
| 879 | pr_err("%s: %s invalid. client_id = %u, dest_id = %u\n", |
| 880 | __func__, |
| 881 | client_id >= APR_CLIENT_MAX ? "Client ID" : "Dest ID", |
| 882 | client_id, dest_id); |
| 883 | rc = -EINVAL; |
| 884 | goto exit; |
| 885 | } |
| 886 | |
| 887 | if (!client[dest_id][client_id].handle) { |
| 888 | pr_err("%s: Client handle is NULL\n", __func__); |
| 889 | rc = -EINVAL; |
| 890 | goto exit; |
| 891 | } |
| 892 | |
| 893 | rc = apr_tal_end_rx_rt(client[dest_id][client_id].handle); |
| 894 | if (rc) |
| 895 | pr_err("%s: failed to reset RT thread priority for APR RX. rc = %d\n", |
| 896 | __func__, rc); |
| 897 | |
| 898 | exit: |
| 899 | mutex_unlock(&svc->m_lock); |
| 900 | return rc; |
| 901 | } |
| 902 | EXPORT_SYMBOL(apr_end_rx_rt); |
| 903 | |
| 904 | /** |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 905 | * apr_deregister - Clients call to de-register |
| 906 | * from APR. |
| 907 | * |
| 908 | * @handle: APR service handle to de-register |
| 909 | * |
| 910 | * Returns 0 on success or -EINVAL on error. |
| 911 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 912 | int apr_deregister(void *handle) |
| 913 | { |
| 914 | struct apr_svc *svc = handle; |
| 915 | struct apr_client *clnt; |
| 916 | uint16_t dest_id; |
| 917 | uint16_t client_id; |
| 918 | |
| 919 | if (!handle) |
| 920 | return -EINVAL; |
| 921 | |
| 922 | mutex_lock(&svc->m_lock); |
| 923 | if (!svc->svc_cnt) { |
| 924 | pr_err("%s: svc already deregistered. svc = %pK\n", |
| 925 | __func__, svc); |
| 926 | mutex_unlock(&svc->m_lock); |
| 927 | return -EINVAL; |
| 928 | } |
| 929 | |
| 930 | dest_id = svc->dest_id; |
| 931 | client_id = svc->client_id; |
| 932 | clnt = &client[dest_id][client_id]; |
| 933 | |
| 934 | if (svc->svc_cnt > 0) { |
| 935 | if (svc->port_cnt) |
| 936 | svc->port_cnt--; |
| 937 | svc->svc_cnt--; |
| 938 | if (!svc->svc_cnt) { |
| 939 | client[dest_id][client_id].svc_cnt--; |
| 940 | pr_debug("%s: service is reset %pK\n", __func__, svc); |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | if (!svc->svc_cnt) { |
| 945 | svc->priv = NULL; |
| 946 | svc->id = 0; |
| 947 | svc->fn = NULL; |
| 948 | svc->dest_id = 0; |
| 949 | svc->client_id = 0; |
| 950 | svc->need_reset = 0x0; |
| 951 | } |
| 952 | if (client[dest_id][client_id].handle && |
| 953 | !client[dest_id][client_id].svc_cnt) { |
| 954 | apr_tal_close(client[dest_id][client_id].handle); |
| 955 | client[dest_id][client_id].handle = NULL; |
| 956 | } |
| 957 | mutex_unlock(&svc->m_lock); |
| 958 | |
| 959 | return 0; |
| 960 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 961 | EXPORT_SYMBOL(apr_deregister); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 962 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 963 | /** |
| 964 | * apr_reset - sets up workqueue to de-register |
| 965 | * the given APR service handle. |
| 966 | * |
| 967 | * @handle: APR service handle |
| 968 | * |
| 969 | */ |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 970 | void apr_reset(void *handle) |
| 971 | { |
| 972 | struct apr_reset_work *apr_reset_worker = NULL; |
| 973 | |
| 974 | if (!handle) |
| 975 | return; |
| 976 | pr_debug("%s: handle[%pK]\n", __func__, handle); |
| 977 | |
| 978 | if (apr_reset_workqueue == NULL) { |
| 979 | pr_err("%s: apr_reset_workqueue is NULL\n", __func__); |
| 980 | return; |
| 981 | } |
| 982 | |
| 983 | apr_reset_worker = kzalloc(sizeof(struct apr_reset_work), |
| 984 | GFP_ATOMIC); |
| 985 | |
| 986 | if (apr_reset_worker == NULL) { |
| 987 | pr_err("%s: mem failure\n", __func__); |
| 988 | return; |
| 989 | } |
| 990 | |
| 991 | apr_reset_worker->handle = handle; |
| 992 | INIT_WORK(&apr_reset_worker->work, apr_reset_deregister); |
| 993 | queue_work(apr_reset_workqueue, &apr_reset_worker->work); |
| 994 | } |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 995 | EXPORT_SYMBOL(apr_reset); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 996 | |
| 997 | /* Dispatch the Reset events to Modem and audio clients */ |
| 998 | static void dispatch_event(unsigned long code, uint16_t proc) |
| 999 | { |
| 1000 | struct apr_client *apr_client; |
| 1001 | struct apr_client_data data; |
| 1002 | struct apr_svc *svc; |
| 1003 | uint16_t clnt; |
| 1004 | int i, j; |
| 1005 | |
Laxminath Kasam | 8f7ccc2 | 2017-08-28 17:35:04 +0530 | [diff] [blame] | 1006 | memset(&data, 0, sizeof(data)); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1007 | data.opcode = RESET_EVENTS; |
| 1008 | data.reset_event = code; |
| 1009 | |
| 1010 | /* Service domain can be different from the processor */ |
| 1011 | data.reset_proc = apr_get_reset_domain(proc); |
| 1012 | |
| 1013 | clnt = APR_CLIENT_AUDIO; |
| 1014 | apr_client = &client[proc][clnt]; |
| 1015 | for (i = 0; i < APR_SVC_MAX; i++) { |
| 1016 | mutex_lock(&apr_client->svc[i].m_lock); |
| 1017 | if (apr_client->svc[i].fn) { |
| 1018 | apr_client->svc[i].need_reset = 0x1; |
| 1019 | apr_client->svc[i].fn(&data, apr_client->svc[i].priv); |
| 1020 | } |
| 1021 | if (apr_client->svc[i].port_cnt) { |
| 1022 | svc = &(apr_client->svc[i]); |
| 1023 | svc->need_reset = 0x1; |
| 1024 | for (j = 0; j < APR_MAX_PORTS; j++) |
| 1025 | if (svc->port_fn[j]) |
| 1026 | svc->port_fn[j](&data, |
| 1027 | svc->port_priv[j]); |
| 1028 | } |
| 1029 | mutex_unlock(&apr_client->svc[i].m_lock); |
| 1030 | } |
| 1031 | |
| 1032 | clnt = APR_CLIENT_VOICE; |
| 1033 | apr_client = &client[proc][clnt]; |
| 1034 | for (i = 0; i < APR_SVC_MAX; i++) { |
| 1035 | mutex_lock(&apr_client->svc[i].m_lock); |
| 1036 | if (apr_client->svc[i].fn) { |
| 1037 | apr_client->svc[i].need_reset = 0x1; |
| 1038 | apr_client->svc[i].fn(&data, apr_client->svc[i].priv); |
| 1039 | } |
| 1040 | if (apr_client->svc[i].port_cnt) { |
| 1041 | svc = &(apr_client->svc[i]); |
| 1042 | svc->need_reset = 0x1; |
| 1043 | for (j = 0; j < APR_MAX_PORTS; j++) |
| 1044 | if (svc->port_fn[j]) |
| 1045 | svc->port_fn[j](&data, |
| 1046 | svc->port_priv[j]); |
| 1047 | } |
| 1048 | mutex_unlock(&apr_client->svc[i].m_lock); |
| 1049 | } |
| 1050 | } |
| 1051 | |
| 1052 | static int apr_notifier_service_cb(struct notifier_block *this, |
| 1053 | unsigned long opcode, void *data) |
| 1054 | { |
| 1055 | struct audio_notifier_cb_data *cb_data = data; |
| 1056 | |
| 1057 | if (cb_data == NULL) { |
| 1058 | pr_err("%s: Callback data is NULL!\n", __func__); |
| 1059 | goto done; |
| 1060 | } |
| 1061 | |
| 1062 | pr_debug("%s: Service opcode 0x%lx, domain %d\n", |
| 1063 | __func__, opcode, cb_data->domain); |
| 1064 | |
| 1065 | switch (opcode) { |
| 1066 | case AUDIO_NOTIFIER_SERVICE_DOWN: |
| 1067 | /* |
| 1068 | * Use flag to ignore down notifications during |
| 1069 | * initial boot. There is no benefit from error |
| 1070 | * recovery notifications during initial boot |
| 1071 | * up since everything is expected to be down. |
| 1072 | */ |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1073 | spin_lock(&apr_priv->apr_lock); |
| 1074 | if (apr_priv->is_initial_boot) { |
| 1075 | spin_unlock(&apr_priv->apr_lock); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1076 | break; |
| 1077 | } |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1078 | spin_unlock(&apr_priv->apr_lock); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1079 | if (cb_data->domain == AUDIO_NOTIFIER_MODEM_DOMAIN) |
| 1080 | apr_modem_down(opcode); |
| 1081 | else |
| 1082 | apr_adsp_down(opcode); |
| 1083 | break; |
| 1084 | case AUDIO_NOTIFIER_SERVICE_UP: |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1085 | if (cb_data->domain == AUDIO_NOTIFIER_MODEM_DOMAIN) |
| 1086 | apr_modem_up(); |
| 1087 | else |
| 1088 | apr_adsp_up(); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1089 | spin_lock(&apr_priv->apr_lock); |
| 1090 | apr_priv->is_initial_boot = false; |
| 1091 | spin_unlock(&apr_priv->apr_lock); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1092 | break; |
| 1093 | default: |
| 1094 | break; |
| 1095 | } |
| 1096 | done: |
| 1097 | return NOTIFY_OK; |
| 1098 | } |
| 1099 | |
| 1100 | static struct notifier_block adsp_service_nb = { |
| 1101 | .notifier_call = apr_notifier_service_cb, |
| 1102 | .priority = 0, |
| 1103 | }; |
| 1104 | |
| 1105 | static struct notifier_block modem_service_nb = { |
| 1106 | .notifier_call = apr_notifier_service_cb, |
| 1107 | .priority = 0, |
| 1108 | }; |
| 1109 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1110 | #ifdef CONFIG_DEBUG_FS |
| 1111 | static int __init apr_debug_init(void) |
| 1112 | { |
| 1113 | debugfs_apr_debug = debugfs_create_file("msm_apr_debug", |
| 1114 | S_IFREG | 0444, NULL, NULL, |
| 1115 | &apr_debug_ops); |
| 1116 | return 0; |
| 1117 | } |
| 1118 | #else |
| 1119 | static int __init apr_debug_init(void) |
| 1120 | ( |
| 1121 | return 0; |
| 1122 | ) |
| 1123 | #endif |
| 1124 | |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1125 | static void apr_cleanup(void) |
| 1126 | { |
| 1127 | int i, j, k; |
| 1128 | |
Meng Wang | eab9a2b | 2018-05-02 14:55:53 +0800 | [diff] [blame] | 1129 | of_platform_depopulate(apr_priv->dev); |
Meng Wang | f71f350 | 2018-05-07 16:59:30 +0800 | [diff] [blame] | 1130 | subsys_notif_deregister(subsys_name); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1131 | if (apr_reset_workqueue) { |
| 1132 | flush_workqueue(apr_reset_workqueue); |
| 1133 | destroy_workqueue(apr_reset_workqueue); |
| 1134 | } |
| 1135 | mutex_destroy(&q6.lock); |
| 1136 | for (i = 0; i < APR_DEST_MAX; i++) { |
| 1137 | for (j = 0; j < APR_CLIENT_MAX; j++) { |
| 1138 | mutex_destroy(&client[i][j].m_lock); |
| 1139 | for (k = 0; k < APR_SVC_MAX; k++) |
| 1140 | mutex_destroy(&client[i][j].svc[k].m_lock); |
| 1141 | } |
| 1142 | } |
Meng Wang | eab9a2b | 2018-05-02 14:55:53 +0800 | [diff] [blame] | 1143 | debugfs_remove(debugfs_apr_debug); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1144 | } |
| 1145 | |
| 1146 | static int apr_probe(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1147 | { |
Meng Wang | f71f350 | 2018-05-07 16:59:30 +0800 | [diff] [blame] | 1148 | int i, j, k, ret = 0; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1149 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1150 | init_waitqueue_head(&modem_wait); |
| 1151 | |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1152 | apr_priv = devm_kzalloc(&pdev->dev, sizeof(*apr_priv), GFP_KERNEL); |
| 1153 | if (!apr_priv) |
| 1154 | return -ENOMEM; |
| 1155 | |
| 1156 | apr_priv->dev = &pdev->dev; |
| 1157 | spin_lock_init(&apr_priv->apr_lock); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1158 | INIT_WORK(&apr_priv->add_chld_dev_work, apr_add_child_devices); |
| 1159 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1160 | for (i = 0; i < APR_DEST_MAX; i++) |
| 1161 | for (j = 0; j < APR_CLIENT_MAX; j++) { |
| 1162 | mutex_init(&client[i][j].m_lock); |
| 1163 | for (k = 0; k < APR_SVC_MAX; k++) { |
| 1164 | mutex_init(&client[i][j].svc[k].m_lock); |
| 1165 | spin_lock_init(&client[i][j].svc[k].w_lock); |
| 1166 | } |
| 1167 | } |
| 1168 | apr_set_subsys_state(); |
| 1169 | mutex_init(&q6.lock); |
| 1170 | apr_reset_workqueue = create_singlethread_workqueue("apr_driver"); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1171 | if (!apr_reset_workqueue) { |
| 1172 | apr_priv = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1173 | return -ENOMEM; |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1174 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1175 | |
| 1176 | apr_pkt_ctx = ipc_log_context_create(APR_PKT_IPC_LOG_PAGE_CNT, |
| 1177 | "apr", 0); |
| 1178 | if (!apr_pkt_ctx) |
| 1179 | pr_err("%s: Unable to create ipc log context\n", __func__); |
| 1180 | |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1181 | spin_lock(&apr_priv->apr_lock); |
| 1182 | apr_priv->is_initial_boot = true; |
| 1183 | spin_unlock(&apr_priv->apr_lock); |
Meng Wang | f71f350 | 2018-05-07 16:59:30 +0800 | [diff] [blame] | 1184 | ret = of_property_read_string(pdev->dev.of_node, |
| 1185 | "qcom,subsys-name", |
| 1186 | (const char **)(&subsys_name)); |
| 1187 | if (ret) { |
| 1188 | pr_err("%s: missing subsys-name entry in dt node\n", __func__); |
| 1189 | return -EINVAL; |
| 1190 | } |
| 1191 | |
| 1192 | if (!strcmp(subsys_name, "apr_adsp")) { |
| 1193 | subsys_notif_register("apr_adsp", |
| 1194 | AUDIO_NOTIFIER_ADSP_DOMAIN, |
| 1195 | &adsp_service_nb); |
| 1196 | } else if (!strcmp(subsys_name, "apr_modem")) { |
| 1197 | subsys_notif_register("apr_modem", |
| 1198 | AUDIO_NOTIFIER_MODEM_DOMAIN, |
| 1199 | &modem_service_nb); |
| 1200 | } else { |
| 1201 | pr_err("%s: invalid subsys-name %s\n", __func__, subsys_name); |
| 1202 | return -EINVAL; |
| 1203 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1204 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1205 | apr_tal_init(); |
Banajit Goswami | 40bdd6b | 2018-07-20 19:24:54 -0700 | [diff] [blame] | 1206 | |
| 1207 | ret = snd_event_client_register(&pdev->dev, &apr_ssr_ops, NULL); |
| 1208 | if (ret) { |
Banajit Goswami | c366b45 | 2018-08-22 17:53:25 -0700 | [diff] [blame] | 1209 | pr_err("%s: Registration with SND event fwk failed ret = %d\n", |
Banajit Goswami | 40bdd6b | 2018-07-20 19:24:54 -0700 | [diff] [blame] | 1210 | __func__, ret); |
| 1211 | ret = 0; |
| 1212 | } |
| 1213 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1214 | return apr_debug_init(); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1215 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1216 | |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1217 | static int apr_remove(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1218 | { |
Banajit Goswami | 40bdd6b | 2018-07-20 19:24:54 -0700 | [diff] [blame] | 1219 | snd_event_client_deregister(&pdev->dev); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1220 | apr_cleanup(); |
Shiv Maliyappanahalli | 7235482 | 2017-11-17 16:07:27 -0800 | [diff] [blame] | 1221 | apr_tal_exit(); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1222 | apr_priv = NULL; |
| 1223 | return 0; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1224 | } |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1225 | |
| 1226 | static const struct of_device_id apr_machine_of_match[] = { |
| 1227 | { .compatible = "qcom,msm-audio-apr", }, |
| 1228 | {}, |
| 1229 | }; |
| 1230 | |
| 1231 | static struct platform_driver apr_driver = { |
| 1232 | .probe = apr_probe, |
| 1233 | .remove = apr_remove, |
| 1234 | .driver = { |
| 1235 | .name = "audio_apr", |
| 1236 | .owner = THIS_MODULE, |
| 1237 | .of_match_table = apr_machine_of_match, |
Xiaojun Sang | 53cd13a | 2018-06-29 15:14:37 +0800 | [diff] [blame] | 1238 | .suppress_bind_attrs = true, |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1239 | } |
| 1240 | }; |
| 1241 | |
| 1242 | module_platform_driver(apr_driver); |
| 1243 | |
| 1244 | MODULE_DESCRIPTION("APR DRIVER"); |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1245 | MODULE_LICENSE("GPL v2"); |
Banajit Goswami | 3d99f7a | 2018-03-03 02:09:05 -0800 | [diff] [blame] | 1246 | MODULE_DEVICE_TABLE(of, apr_machine_of_match); |