Xiaoyu Ye | 6415c8a | 2019-02-01 17:55:06 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2010-2019, 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 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/fs.h> |
| 16 | #include <linux/miscdevice.h> |
| 17 | #include <linux/uaccess.h> |
| 18 | #include <linux/sched.h> |
| 19 | #include <linux/wait.h> |
| 20 | #include <linux/dma-mapping.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <linux/atomic.h> |
| 23 | #include <linux/compat.h> |
| 24 | #include <asm/ioctls.h> |
| 25 | #include "audio_utils.h" |
| 26 | |
| 27 | /* |
| 28 | * Define maximum buffer size. Below values are chosen considering the higher |
| 29 | * values used among all native drivers. |
| 30 | */ |
| 31 | #define MAX_FRAME_SIZE 1536 |
| 32 | #define MAX_FRAMES 5 |
| 33 | #define META_SIZE (sizeof(struct meta_out_dsp)) |
| 34 | #define MAX_BUFFER_SIZE (1 + ((MAX_FRAME_SIZE + META_SIZE) * MAX_FRAMES)) |
| 35 | |
| 36 | static int audio_in_pause(struct q6audio_in *audio) |
| 37 | { |
| 38 | int rc; |
| 39 | |
| 40 | rc = q6asm_cmd(audio->ac, CMD_PAUSE); |
| 41 | if (rc < 0) |
| 42 | pr_err("%s:session id %d: pause cmd failed rc=%d\n", __func__, |
| 43 | audio->ac->session, rc); |
| 44 | |
| 45 | return rc; |
| 46 | } |
| 47 | |
| 48 | static int audio_in_flush(struct q6audio_in *audio) |
| 49 | { |
| 50 | int rc; |
| 51 | |
| 52 | pr_debug("%s:session id %d: flush\n", __func__, audio->ac->session); |
| 53 | /* Flush if session running */ |
| 54 | if (audio->enabled) { |
| 55 | /* Implicitly issue a pause to the encoder before flushing */ |
| 56 | rc = audio_in_pause(audio); |
| 57 | if (rc < 0) { |
| 58 | pr_err("%s:session id %d: pause cmd failed rc=%d\n", |
| 59 | __func__, audio->ac->session, rc); |
| 60 | return rc; |
| 61 | } |
| 62 | |
| 63 | rc = q6asm_cmd(audio->ac, CMD_FLUSH); |
| 64 | if (rc < 0) { |
| 65 | pr_err("%s:session id %d: flush cmd failed rc=%d\n", |
| 66 | __func__, audio->ac->session, rc); |
| 67 | return rc; |
| 68 | } |
| 69 | /* 2nd arg: 0 -> run immediately |
| 70 | * 3rd arg: 0 -> msw_ts, |
| 71 | * 4th arg: 0 ->lsw_ts |
| 72 | */ |
| 73 | q6asm_run(audio->ac, 0x00, 0x00, 0x00); |
| 74 | pr_debug("Rerun the session\n"); |
| 75 | } |
| 76 | audio->rflush = 1; |
| 77 | audio->wflush = 1; |
| 78 | memset(audio->out_frame_info, 0, sizeof(audio->out_frame_info)); |
| 79 | wake_up(&audio->read_wait); |
| 80 | /* get read_lock to ensure no more waiting read thread */ |
| 81 | mutex_lock(&audio->read_lock); |
| 82 | audio->rflush = 0; |
| 83 | mutex_unlock(&audio->read_lock); |
| 84 | wake_up(&audio->write_wait); |
| 85 | /* get write_lock to ensure no more waiting write thread */ |
| 86 | mutex_lock(&audio->write_lock); |
| 87 | audio->wflush = 0; |
| 88 | mutex_unlock(&audio->write_lock); |
| 89 | pr_debug("%s:session id %d: in_bytes %d\n", __func__, |
| 90 | audio->ac->session, atomic_read(&audio->in_bytes)); |
| 91 | pr_debug("%s:session id %d: in_samples %d\n", __func__, |
| 92 | audio->ac->session, atomic_read(&audio->in_samples)); |
| 93 | atomic_set(&audio->in_bytes, 0); |
| 94 | atomic_set(&audio->in_samples, 0); |
| 95 | atomic_set(&audio->out_count, 0); |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | /* must be called with audio->lock held */ |
| 100 | int audio_in_enable(struct q6audio_in *audio) |
| 101 | { |
| 102 | if (audio->enabled) |
| 103 | return 0; |
| 104 | |
| 105 | /* 2nd arg: 0 -> run immediately |
| 106 | * 3rd arg: 0 -> msw_ts, |
| 107 | * 4th arg: 0 ->lsw_ts |
| 108 | */ |
| 109 | return q6asm_run(audio->ac, 0x00, 0x00, 0x00); |
| 110 | } |
| 111 | |
| 112 | /* must be called with audio->lock held */ |
| 113 | int audio_in_disable(struct q6audio_in *audio) |
| 114 | { |
| 115 | int rc = 0; |
| 116 | |
| 117 | if (!audio->stopped) { |
| 118 | audio->enabled = 0; |
| 119 | audio->opened = 0; |
| 120 | pr_debug("%s:session id %d: inbytes[%d] insamples[%d]\n", |
| 121 | __func__, audio->ac->session, |
| 122 | atomic_read(&audio->in_bytes), |
| 123 | atomic_read(&audio->in_samples)); |
| 124 | |
| 125 | rc = q6asm_cmd(audio->ac, CMD_CLOSE); |
| 126 | if (rc < 0) |
| 127 | pr_err("%s:session id %d: Failed to close the session rc=%d\n", |
| 128 | __func__, audio->ac->session, |
| 129 | rc); |
| 130 | audio->stopped = 1; |
| 131 | memset(audio->out_frame_info, 0, |
| 132 | sizeof(audio->out_frame_info)); |
| 133 | wake_up(&audio->read_wait); |
| 134 | wake_up(&audio->write_wait); |
| 135 | } |
| 136 | pr_debug("%s:session id %d: enabled[%d]\n", __func__, |
| 137 | audio->ac->session, audio->enabled); |
| 138 | return rc; |
| 139 | } |
| 140 | |
| 141 | int audio_in_buf_alloc(struct q6audio_in *audio) |
| 142 | { |
| 143 | int rc = 0; |
| 144 | |
| 145 | switch (audio->buf_alloc) { |
| 146 | case NO_BUF_ALLOC: |
| 147 | if (audio->feedback == NON_TUNNEL_MODE) { |
| 148 | rc = q6asm_audio_client_buf_alloc(IN, |
| 149 | audio->ac, |
| 150 | ALIGN_BUF_SIZE(audio->pcm_cfg.buffer_size), |
| 151 | audio->pcm_cfg.buffer_count); |
| 152 | if (rc < 0) { |
| 153 | pr_err("%s:session id %d: Buffer Alloc failed\n", |
| 154 | __func__, |
| 155 | audio->ac->session); |
| 156 | rc = -ENOMEM; |
| 157 | break; |
| 158 | } |
| 159 | audio->buf_alloc |= BUF_ALLOC_IN; |
| 160 | } |
| 161 | rc = q6asm_audio_client_buf_alloc(OUT, audio->ac, |
| 162 | ALIGN_BUF_SIZE(audio->str_cfg.buffer_size), |
| 163 | audio->str_cfg.buffer_count); |
| 164 | if (rc < 0) { |
| 165 | pr_err("%s:session id %d: Buffer Alloc failed rc=%d\n", |
| 166 | __func__, audio->ac->session, rc); |
| 167 | rc = -ENOMEM; |
| 168 | break; |
| 169 | } |
| 170 | audio->buf_alloc |= BUF_ALLOC_OUT; |
| 171 | break; |
| 172 | case BUF_ALLOC_IN: |
| 173 | rc = q6asm_audio_client_buf_alloc(OUT, audio->ac, |
| 174 | ALIGN_BUF_SIZE(audio->str_cfg.buffer_size), |
| 175 | audio->str_cfg.buffer_count); |
| 176 | if (rc < 0) { |
| 177 | pr_err("%s:session id %d: Buffer Alloc failed rc=%d\n", |
| 178 | __func__, audio->ac->session, rc); |
| 179 | rc = -ENOMEM; |
| 180 | break; |
| 181 | } |
| 182 | audio->buf_alloc |= BUF_ALLOC_OUT; |
| 183 | break; |
| 184 | case BUF_ALLOC_OUT: |
| 185 | if (audio->feedback == NON_TUNNEL_MODE) { |
| 186 | rc = q6asm_audio_client_buf_alloc(IN, audio->ac, |
| 187 | ALIGN_BUF_SIZE(audio->pcm_cfg.buffer_size), |
| 188 | audio->pcm_cfg.buffer_count); |
| 189 | if (rc < 0) { |
| 190 | pr_err("%s:session id %d: Buffer Alloc failed\n", |
| 191 | __func__, |
| 192 | audio->ac->session); |
| 193 | rc = -ENOMEM; |
| 194 | break; |
| 195 | } |
| 196 | audio->buf_alloc |= BUF_ALLOC_IN; |
| 197 | } |
| 198 | break; |
| 199 | default: |
| 200 | pr_debug("%s:session id %d: buf[%d]\n", __func__, |
| 201 | audio->ac->session, audio->buf_alloc); |
| 202 | } |
| 203 | |
| 204 | return rc; |
| 205 | } |
| 206 | |
| 207 | int audio_in_set_config(struct file *file, |
| 208 | struct msm_audio_config *cfg) |
| 209 | { |
| 210 | int rc = 0; |
| 211 | struct q6audio_in *audio = file->private_data; |
| 212 | |
| 213 | if (audio->feedback != NON_TUNNEL_MODE) { |
| 214 | pr_err("%s:session id %d: Not sufficient permission to change the record mode\n", |
| 215 | __func__, audio->ac->session); |
| 216 | rc = -EACCES; |
| 217 | goto ret; |
| 218 | } |
| 219 | if ((cfg->buffer_count > PCM_BUF_COUNT) || |
| 220 | (cfg->buffer_count == 1)) |
| 221 | cfg->buffer_count = PCM_BUF_COUNT; |
| 222 | |
| 223 | audio->pcm_cfg.buffer_count = cfg->buffer_count; |
| 224 | audio->pcm_cfg.buffer_size = cfg->buffer_size; |
| 225 | audio->pcm_cfg.channel_count = cfg->channel_count; |
| 226 | audio->pcm_cfg.sample_rate = cfg->sample_rate; |
| 227 | if (audio->opened && audio->feedback == NON_TUNNEL_MODE) { |
| 228 | rc = q6asm_audio_client_buf_alloc(IN, audio->ac, |
| 229 | ALIGN_BUF_SIZE(audio->pcm_cfg.buffer_size), |
| 230 | audio->pcm_cfg.buffer_count); |
| 231 | if (rc < 0) { |
| 232 | pr_err("%s:session id %d: Buffer Alloc failed\n", |
| 233 | __func__, audio->ac->session); |
| 234 | rc = -ENOMEM; |
| 235 | goto ret; |
| 236 | } |
| 237 | } |
| 238 | audio->buf_alloc |= BUF_ALLOC_IN; |
| 239 | rc = 0; |
| 240 | pr_debug("%s:session id %d: AUDIO_SET_CONFIG %d %d\n", __func__, |
| 241 | audio->ac->session, audio->pcm_cfg.buffer_count, |
| 242 | audio->pcm_cfg.buffer_size); |
| 243 | ret: |
| 244 | return rc; |
| 245 | } |
| 246 | /* ------------------- device --------------------- */ |
| 247 | static long audio_in_ioctl_shared(struct file *file, |
| 248 | unsigned int cmd, unsigned long arg) |
| 249 | { |
| 250 | struct q6audio_in *audio = file->private_data; |
| 251 | int rc = 0; |
| 252 | |
| 253 | switch (cmd) { |
| 254 | case AUDIO_FLUSH: { |
| 255 | /* Make sure we're stopped and we wake any threads |
| 256 | * that might be blocked holding the read_lock. |
| 257 | * While audio->stopped read threads will always |
| 258 | * exit immediately. |
| 259 | */ |
| 260 | rc = audio_in_flush(audio); |
| 261 | if (rc < 0) |
| 262 | pr_err("%s:session id %d: Flush Fail rc=%d\n", |
| 263 | __func__, audio->ac->session, rc); |
| 264 | else { /* Register back the flushed read buffer with DSP */ |
| 265 | int cnt = 0; |
| 266 | |
| 267 | while (cnt++ < audio->str_cfg.buffer_count) |
| 268 | q6asm_read(audio->ac); /* Push buffer to DSP */ |
| 269 | pr_debug("register the read buffer\n"); |
| 270 | } |
| 271 | break; |
| 272 | } |
| 273 | case AUDIO_PAUSE: { |
| 274 | pr_debug("%s:session id %d: AUDIO_PAUSE\n", __func__, |
| 275 | audio->ac->session); |
| 276 | if (audio->enabled) |
| 277 | audio_in_pause(audio); |
| 278 | break; |
| 279 | } |
| 280 | case AUDIO_GET_SESSION_ID: { |
| 281 | if (copy_to_user((void *) arg, &audio->ac->session, |
| 282 | sizeof(u16))) { |
| 283 | pr_err("%s: copy_to_user for AUDIO_GET_SESSION_ID failed\n", |
| 284 | __func__); |
| 285 | rc = -EFAULT; |
| 286 | } |
| 287 | break; |
| 288 | } |
| 289 | default: |
| 290 | pr_err("%s: Unknown ioctl cmd = %d", __func__, cmd); |
| 291 | rc = -EINVAL; |
| 292 | } |
| 293 | return rc; |
| 294 | } |
| 295 | |
| 296 | long audio_in_ioctl(struct file *file, |
| 297 | unsigned int cmd, unsigned long arg) |
| 298 | { |
| 299 | struct q6audio_in *audio = file->private_data; |
| 300 | int rc = 0; |
| 301 | |
| 302 | if (cmd == AUDIO_GET_STATS) { |
| 303 | struct msm_audio_stats stats; |
| 304 | |
| 305 | memset(&stats, 0, sizeof(stats)); |
| 306 | stats.byte_count = atomic_read(&audio->in_bytes); |
| 307 | stats.sample_count = atomic_read(&audio->in_samples); |
| 308 | if (copy_to_user((void *) arg, &stats, sizeof(stats))) |
| 309 | return -EFAULT; |
| 310 | return rc; |
| 311 | } |
| 312 | |
| 313 | mutex_lock(&audio->lock); |
| 314 | switch (cmd) { |
| 315 | case AUDIO_FLUSH: |
| 316 | case AUDIO_PAUSE: |
| 317 | case AUDIO_GET_SESSION_ID: |
| 318 | rc = audio_in_ioctl_shared(file, cmd, arg); |
| 319 | break; |
| 320 | case AUDIO_GET_STREAM_CONFIG: { |
| 321 | struct msm_audio_stream_config cfg; |
| 322 | |
| 323 | memset(&cfg, 0, sizeof(cfg)); |
| 324 | cfg.buffer_size = audio->str_cfg.buffer_size; |
| 325 | cfg.buffer_count = audio->str_cfg.buffer_count; |
| 326 | if (copy_to_user((void *)arg, &cfg, sizeof(cfg))) |
| 327 | rc = -EFAULT; |
| 328 | pr_debug("%s:session id %d: AUDIO_GET_STREAM_CONFIG %d %d\n", |
| 329 | __func__, audio->ac->session, cfg.buffer_size, |
| 330 | cfg.buffer_count); |
| 331 | break; |
| 332 | } |
| 333 | case AUDIO_SET_STREAM_CONFIG: { |
| 334 | struct msm_audio_stream_config cfg; |
| 335 | |
| 336 | if (copy_from_user(&cfg, (void *)arg, sizeof(cfg))) { |
| 337 | pr_err("%s: copy_from_user for AUDIO_SET_STREAM_CONFIG failed\n" |
| 338 | , __func__); |
| 339 | rc = -EFAULT; |
| 340 | break; |
| 341 | } |
| 342 | /* Minimum single frame size, |
| 343 | * but with in maximum frames number |
| 344 | */ |
| 345 | if ((cfg.buffer_size < (audio->min_frame_size + |
| 346 | sizeof(struct meta_out_dsp))) || |
| 347 | (cfg.buffer_count < FRAME_NUM)) { |
| 348 | rc = -EINVAL; |
| 349 | break; |
| 350 | } |
| 351 | if (cfg.buffer_size > MAX_BUFFER_SIZE) { |
| 352 | rc = -EINVAL; |
| 353 | break; |
| 354 | } |
| 355 | audio->str_cfg.buffer_size = cfg.buffer_size; |
| 356 | audio->str_cfg.buffer_count = cfg.buffer_count; |
| 357 | if (audio->opened) { |
| 358 | rc = q6asm_audio_client_buf_alloc(OUT, audio->ac, |
| 359 | ALIGN_BUF_SIZE(audio->str_cfg.buffer_size), |
| 360 | audio->str_cfg.buffer_count); |
| 361 | if (rc < 0) { |
| 362 | pr_err("%s: session id %d: Buffer Alloc failed rc=%d\n", |
| 363 | __func__, audio->ac->session, rc); |
| 364 | rc = -ENOMEM; |
| 365 | break; |
| 366 | } |
| 367 | } |
| 368 | audio->buf_alloc |= BUF_ALLOC_OUT; |
| 369 | rc = 0; |
| 370 | pr_debug("%s:session id %d: AUDIO_SET_STREAM_CONFIG %d %d\n", |
| 371 | __func__, audio->ac->session, |
| 372 | audio->str_cfg.buffer_size, |
| 373 | audio->str_cfg.buffer_count); |
| 374 | break; |
| 375 | } |
| 376 | case AUDIO_SET_BUF_CFG: { |
| 377 | struct msm_audio_buf_cfg cfg; |
| 378 | |
| 379 | if (copy_from_user(&cfg, (void *)arg, sizeof(cfg))) { |
| 380 | rc = -EFAULT; |
| 381 | break; |
| 382 | } |
| 383 | if ((audio->feedback == NON_TUNNEL_MODE) && |
| 384 | !cfg.meta_info_enable) { |
| 385 | rc = -EFAULT; |
| 386 | break; |
| 387 | } |
| 388 | |
| 389 | /* Restrict the num of frames per buf to coincide with |
| 390 | * default buf size |
| 391 | */ |
| 392 | if (cfg.frames_per_buf > audio->max_frames_per_buf) { |
| 393 | rc = -EFAULT; |
| 394 | break; |
| 395 | } |
| 396 | audio->buf_cfg.meta_info_enable = cfg.meta_info_enable; |
| 397 | audio->buf_cfg.frames_per_buf = cfg.frames_per_buf; |
| 398 | pr_debug("%s:session id %d: Set-buf-cfg: meta[%d] framesperbuf[%d]\n", |
| 399 | __func__, |
| 400 | audio->ac->session, cfg.meta_info_enable, |
| 401 | cfg.frames_per_buf); |
| 402 | break; |
| 403 | } |
| 404 | case AUDIO_GET_BUF_CFG: { |
| 405 | pr_debug("%s:session id %d: Get-buf-cfg: meta[%d] framesperbuf[%d]\n", |
| 406 | __func__, |
| 407 | audio->ac->session, audio->buf_cfg.meta_info_enable, |
| 408 | audio->buf_cfg.frames_per_buf); |
| 409 | |
| 410 | if (copy_to_user((void *)arg, &audio->buf_cfg, |
| 411 | sizeof(struct msm_audio_buf_cfg))) |
| 412 | rc = -EFAULT; |
| 413 | break; |
| 414 | } |
| 415 | case AUDIO_GET_CONFIG: { |
| 416 | if (copy_to_user((void *)arg, &audio->pcm_cfg, |
| 417 | sizeof(struct msm_audio_config))) |
| 418 | rc = -EFAULT; |
| 419 | break; |
| 420 | |
| 421 | } |
| 422 | case AUDIO_SET_CONFIG: { |
| 423 | struct msm_audio_config cfg; |
| 424 | |
| 425 | if (copy_from_user(&cfg, (void *)arg, sizeof(cfg))) { |
| 426 | pr_err("%s: copy_from_user for AUDIO_SET_CONFIG failed\n", |
| 427 | __func__); |
| 428 | rc = -EFAULT; |
| 429 | break; |
| 430 | } |
| 431 | rc = audio_in_set_config(file, &cfg); |
| 432 | break; |
| 433 | } |
| 434 | default: |
| 435 | /* call codec specific ioctl */ |
| 436 | rc = audio->enc_ioctl(file, cmd, arg); |
| 437 | } |
| 438 | mutex_unlock(&audio->lock); |
| 439 | return rc; |
| 440 | } |
| 441 | |
| 442 | #ifdef CONFIG_COMPAT |
| 443 | struct msm_audio_stats32 { |
| 444 | u32 byte_count; |
| 445 | u32 sample_count; |
| 446 | u32 unused[2]; |
| 447 | }; |
| 448 | |
| 449 | struct msm_audio_stream_config32 { |
| 450 | u32 buffer_size; |
| 451 | u32 buffer_count; |
| 452 | }; |
| 453 | |
| 454 | struct msm_audio_config32 { |
| 455 | u32 buffer_size; |
| 456 | u32 buffer_count; |
| 457 | u32 channel_count; |
| 458 | u32 sample_rate; |
| 459 | u32 type; |
| 460 | u32 meta_field; |
| 461 | u32 bits; |
| 462 | u32 unused[3]; |
| 463 | }; |
| 464 | |
| 465 | struct msm_audio_buf_cfg32 { |
| 466 | u32 meta_info_enable; |
| 467 | u32 frames_per_buf; |
| 468 | }; |
| 469 | |
| 470 | enum { |
| 471 | AUDIO_GET_CONFIG_32 = _IOR(AUDIO_IOCTL_MAGIC, 3, |
| 472 | struct msm_audio_config32), |
| 473 | AUDIO_SET_CONFIG_32 = _IOW(AUDIO_IOCTL_MAGIC, 4, |
| 474 | struct msm_audio_config32), |
| 475 | AUDIO_GET_STATS_32 = _IOR(AUDIO_IOCTL_MAGIC, 5, |
| 476 | struct msm_audio_stats32), |
| 477 | AUDIO_SET_STREAM_CONFIG_32 = _IOW(AUDIO_IOCTL_MAGIC, 80, |
| 478 | struct msm_audio_stream_config32), |
| 479 | AUDIO_GET_STREAM_CONFIG_32 = _IOR(AUDIO_IOCTL_MAGIC, 81, |
| 480 | struct msm_audio_stream_config32), |
| 481 | AUDIO_SET_BUF_CFG_32 = _IOW(AUDIO_IOCTL_MAGIC, 94, |
| 482 | struct msm_audio_buf_cfg32), |
| 483 | AUDIO_GET_BUF_CFG_32 = _IOW(AUDIO_IOCTL_MAGIC, 93, |
| 484 | struct msm_audio_buf_cfg32), |
| 485 | }; |
| 486 | |
| 487 | long audio_in_compat_ioctl(struct file *file, |
| 488 | unsigned int cmd, unsigned long arg) |
| 489 | { |
| 490 | struct q6audio_in *audio = file->private_data; |
| 491 | int rc = 0; |
| 492 | |
| 493 | if (cmd == AUDIO_GET_STATS_32) { |
| 494 | struct msm_audio_stats32 stats_32; |
| 495 | |
| 496 | memset(&stats_32, 0, sizeof(stats_32)); |
| 497 | stats_32.byte_count = atomic_read(&audio->in_bytes); |
| 498 | stats_32.sample_count = atomic_read(&audio->in_samples); |
| 499 | if (copy_to_user((void *) arg, &stats_32, sizeof(stats_32))) { |
| 500 | pr_err("%s: copy_to_user failed for AUDIO_GET_STATS_32\n", |
| 501 | __func__); |
| 502 | return -EFAULT; |
| 503 | } |
| 504 | return rc; |
| 505 | } |
| 506 | |
| 507 | mutex_lock(&audio->lock); |
| 508 | switch (cmd) { |
| 509 | case AUDIO_FLUSH: |
| 510 | case AUDIO_PAUSE: |
| 511 | case AUDIO_GET_SESSION_ID: |
| 512 | rc = audio_in_ioctl_shared(file, cmd, arg); |
| 513 | break; |
| 514 | case AUDIO_GET_STREAM_CONFIG_32: { |
| 515 | struct msm_audio_stream_config32 cfg_32; |
| 516 | |
| 517 | memset(&cfg_32, 0, sizeof(cfg_32)); |
| 518 | cfg_32.buffer_size = audio->str_cfg.buffer_size; |
| 519 | cfg_32.buffer_count = audio->str_cfg.buffer_count; |
| 520 | if (copy_to_user((void *)arg, &cfg_32, sizeof(cfg_32))) { |
| 521 | pr_err("%s: Copy to user failed\n", __func__); |
| 522 | rc = -EFAULT; |
| 523 | } |
| 524 | pr_debug("%s:session id %d: AUDIO_GET_STREAM_CONFIG %d %d\n", |
| 525 | __func__, audio->ac->session, |
| 526 | cfg_32.buffer_size, |
| 527 | cfg_32.buffer_count); |
| 528 | break; |
| 529 | } |
| 530 | case AUDIO_SET_STREAM_CONFIG_32: { |
| 531 | struct msm_audio_stream_config32 cfg_32; |
| 532 | struct msm_audio_stream_config cfg; |
| 533 | |
| 534 | if (copy_from_user(&cfg_32, (void *)arg, sizeof(cfg_32))) { |
| 535 | pr_err("%s: copy_from_user for AUDIO_SET_STREAM_CONFIG_32 failed\n", |
| 536 | __func__); |
| 537 | rc = -EFAULT; |
| 538 | break; |
| 539 | } |
| 540 | cfg.buffer_size = cfg_32.buffer_size; |
| 541 | cfg.buffer_count = cfg_32.buffer_count; |
| 542 | /* Minimum single frame size, |
| 543 | * but with in maximum frames number |
| 544 | */ |
| 545 | if ((cfg.buffer_size < (audio->min_frame_size + |
| 546 | sizeof(struct meta_out_dsp))) || |
| 547 | (cfg.buffer_count < FRAME_NUM)) { |
| 548 | rc = -EINVAL; |
| 549 | break; |
| 550 | } |
| 551 | audio->str_cfg.buffer_size = cfg.buffer_size; |
| 552 | audio->str_cfg.buffer_count = cfg.buffer_count; |
| 553 | if (audio->opened) { |
| 554 | rc = q6asm_audio_client_buf_alloc(OUT, audio->ac, |
| 555 | ALIGN_BUF_SIZE(audio->str_cfg.buffer_size), |
| 556 | audio->str_cfg.buffer_count); |
| 557 | if (rc < 0) { |
| 558 | pr_err("%s: session id %d:\n", |
| 559 | __func__, audio->ac->session); |
| 560 | pr_err("Buffer Alloc failed rc=%d\n", rc); |
| 561 | rc = -ENOMEM; |
| 562 | break; |
| 563 | } |
| 564 | } |
| 565 | audio->buf_alloc |= BUF_ALLOC_OUT; |
| 566 | pr_debug("%s:session id %d: AUDIO_SET_STREAM_CONFIG %d %d\n", |
| 567 | __func__, audio->ac->session, |
| 568 | audio->str_cfg.buffer_size, |
| 569 | audio->str_cfg.buffer_count); |
| 570 | break; |
| 571 | } |
| 572 | case AUDIO_SET_BUF_CFG_32: { |
| 573 | struct msm_audio_buf_cfg32 cfg_32; |
| 574 | struct msm_audio_buf_cfg cfg; |
| 575 | |
| 576 | if (copy_from_user(&cfg_32, (void *)arg, sizeof(cfg_32))) { |
| 577 | pr_err("%s: copy_from_user for AUDIO_SET_BUG_CFG_32 failed", |
| 578 | __func__); |
| 579 | rc = -EFAULT; |
| 580 | break; |
| 581 | } |
| 582 | cfg.meta_info_enable = cfg_32.meta_info_enable; |
| 583 | cfg.frames_per_buf = cfg_32.frames_per_buf; |
| 584 | |
| 585 | if ((audio->feedback == NON_TUNNEL_MODE) && |
| 586 | !cfg.meta_info_enable) { |
| 587 | rc = -EFAULT; |
| 588 | break; |
| 589 | } |
| 590 | |
| 591 | /* Restrict the num of frames per buf to coincide with |
| 592 | * default buf size |
| 593 | */ |
| 594 | if (cfg.frames_per_buf > audio->max_frames_per_buf) { |
| 595 | rc = -EFAULT; |
| 596 | break; |
| 597 | } |
| 598 | audio->buf_cfg.meta_info_enable = cfg.meta_info_enable; |
| 599 | audio->buf_cfg.frames_per_buf = cfg.frames_per_buf; |
| 600 | pr_debug("%s:session id %d: Set-buf-cfg: meta[%d] framesperbuf[%d]\n", |
| 601 | __func__, audio->ac->session, cfg.meta_info_enable, |
| 602 | cfg.frames_per_buf); |
| 603 | break; |
| 604 | } |
| 605 | case AUDIO_GET_BUF_CFG_32: { |
| 606 | struct msm_audio_buf_cfg32 cfg_32; |
| 607 | |
| 608 | pr_debug("%s:session id %d: Get-buf-cfg: meta[%d] framesperbuf[%d]\n", |
| 609 | __func__, |
| 610 | audio->ac->session, audio->buf_cfg.meta_info_enable, |
| 611 | audio->buf_cfg.frames_per_buf); |
| 612 | cfg_32.meta_info_enable = audio->buf_cfg.meta_info_enable; |
| 613 | cfg_32.frames_per_buf = audio->buf_cfg.frames_per_buf; |
| 614 | |
| 615 | if (copy_to_user((void *)arg, &cfg_32, |
| 616 | sizeof(struct msm_audio_buf_cfg32))) { |
| 617 | pr_err("%s: Copy to user failed\n", __func__); |
| 618 | rc = -EFAULT; |
| 619 | } |
| 620 | break; |
| 621 | } |
| 622 | case AUDIO_GET_CONFIG_32: { |
| 623 | struct msm_audio_config32 cfg_32; |
| 624 | |
| 625 | memset(&cfg_32, 0, sizeof(cfg_32)); |
| 626 | cfg_32.buffer_size = audio->pcm_cfg.buffer_size; |
| 627 | cfg_32.buffer_count = audio->pcm_cfg.buffer_count; |
| 628 | cfg_32.channel_count = audio->pcm_cfg.channel_count; |
| 629 | cfg_32.sample_rate = audio->pcm_cfg.sample_rate; |
| 630 | cfg_32.type = audio->pcm_cfg.type; |
| 631 | cfg_32.meta_field = audio->pcm_cfg.meta_field; |
| 632 | cfg_32.bits = audio->pcm_cfg.bits; |
| 633 | |
| 634 | if (copy_to_user((void *)arg, &cfg_32, |
| 635 | sizeof(struct msm_audio_config32))) { |
| 636 | pr_err("%s: Copy to user failed\n", __func__); |
| 637 | rc = -EFAULT; |
| 638 | } |
| 639 | break; |
| 640 | } |
| 641 | case AUDIO_SET_CONFIG_32: { |
| 642 | struct msm_audio_config32 cfg_32; |
| 643 | struct msm_audio_config cfg; |
| 644 | |
| 645 | if (copy_from_user(&cfg_32, (void *)arg, sizeof(cfg_32))) { |
| 646 | pr_err("%s: copy_from_user for AUDIO_SET_CONFIG_32 failed\n", |
| 647 | __func__); |
| 648 | rc = -EFAULT; |
| 649 | break; |
| 650 | } |
| 651 | cfg.buffer_size = cfg_32.buffer_size; |
| 652 | cfg.buffer_count = cfg_32.buffer_count; |
| 653 | cfg.channel_count = cfg_32.channel_count; |
| 654 | cfg.sample_rate = cfg_32.sample_rate; |
| 655 | cfg.type = cfg_32.type; |
| 656 | cfg.meta_field = cfg_32.meta_field; |
| 657 | cfg.bits = cfg_32.bits; |
| 658 | rc = audio_in_set_config(file, &cfg); |
| 659 | break; |
| 660 | } |
| 661 | default: |
| 662 | /* call codec specific ioctl */ |
| 663 | rc = audio->enc_compat_ioctl(file, cmd, arg); |
| 664 | } |
| 665 | mutex_unlock(&audio->lock); |
| 666 | return rc; |
| 667 | } |
| 668 | #endif |
| 669 | |
| 670 | ssize_t audio_in_read(struct file *file, |
| 671 | char __user *buf, |
| 672 | size_t count, loff_t *pos) |
| 673 | { |
| 674 | struct q6audio_in *audio = file->private_data; |
| 675 | const char __user *start = buf; |
| 676 | unsigned char *data; |
| 677 | uint32_t offset = 0; |
| 678 | uint32_t size = 0; |
| 679 | int rc = 0; |
| 680 | uint32_t idx; |
| 681 | struct meta_out_dsp meta; |
| 682 | uint32_t bytes_to_copy = 0; |
| 683 | uint32_t mfield_size = (audio->buf_cfg.meta_info_enable == 0) ? 0 : |
| 684 | (sizeof(unsigned char) + |
| 685 | (sizeof(struct meta_out_dsp)*(audio->buf_cfg.frames_per_buf))); |
| 686 | |
| 687 | memset(&meta, 0, sizeof(meta)); |
| 688 | pr_debug("%s:session id %d: read - %zd\n", __func__, audio->ac->session, |
| 689 | count); |
| 690 | if (audio->reset_event) |
| 691 | return -ENETRESET; |
| 692 | |
| 693 | if (!audio->enabled) |
| 694 | return -EFAULT; |
| 695 | mutex_lock(&audio->read_lock); |
| 696 | while (count > 0) { |
| 697 | rc = wait_event_interruptible( |
| 698 | audio->read_wait, |
| 699 | ((atomic_read(&audio->out_count) > 0) || |
| 700 | (audio->stopped) || |
| 701 | audio->rflush || audio->eos_rsp || |
| 702 | audio->event_abort)); |
| 703 | |
| 704 | if (audio->event_abort) { |
| 705 | rc = -EIO; |
| 706 | break; |
| 707 | } |
| 708 | |
| 709 | |
| 710 | if (rc < 0) |
| 711 | break; |
| 712 | |
| 713 | if ((audio->stopped && !(atomic_read(&audio->out_count))) || |
| 714 | audio->rflush) { |
| 715 | pr_debug("%s:session id %d: driver in stop state or flush,No more buf to read", |
| 716 | __func__, |
| 717 | audio->ac->session); |
| 718 | rc = 0;/* End of File */ |
| 719 | break; |
| 720 | } |
| 721 | if (!(atomic_read(&audio->out_count)) && |
| 722 | (audio->eos_rsp == 1) && |
| 723 | (count >= (sizeof(unsigned char) + |
| 724 | sizeof(struct meta_out_dsp)))) { |
| 725 | unsigned char num_of_frames; |
| 726 | |
| 727 | pr_info("%s:session id %d: eos %d at output\n", |
| 728 | __func__, audio->ac->session, audio->eos_rsp); |
| 729 | if (buf != start) |
| 730 | break; |
| 731 | num_of_frames = 0xFF; |
| 732 | if (copy_to_user(buf, &num_of_frames, |
| 733 | sizeof(unsigned char))) { |
| 734 | rc = -EFAULT; |
| 735 | break; |
| 736 | } |
| 737 | buf += sizeof(unsigned char); |
| 738 | meta.frame_size = 0xFFFF; |
| 739 | meta.encoded_pcm_samples = 0xFFFF; |
| 740 | meta.msw_ts = 0x00; |
| 741 | meta.lsw_ts = 0x00; |
| 742 | meta.nflags = AUD_EOS_SET; |
| 743 | audio->eos_rsp = 0; |
| 744 | if (copy_to_user(buf, &meta, sizeof(meta))) { |
| 745 | rc = -EFAULT; |
| 746 | break; |
| 747 | } |
| 748 | buf += sizeof(meta); |
| 749 | break; |
| 750 | } |
| 751 | data = (unsigned char *)q6asm_is_cpu_buf_avail(OUT, audio->ac, |
| 752 | &size, &idx); |
| 753 | if ((count >= (size + mfield_size)) && data) { |
| 754 | if (audio->buf_cfg.meta_info_enable) { |
| 755 | if (copy_to_user(buf, |
| 756 | &audio->out_frame_info[idx][0], |
| 757 | sizeof(unsigned char))) { |
| 758 | rc = -EFAULT; |
| 759 | break; |
| 760 | } |
| 761 | bytes_to_copy = |
| 762 | (size + audio->out_frame_info[idx][1]); |
Weiyin Jiang | 1cc531e | 2018-10-22 16:40:10 +0800 | [diff] [blame] | 763 | if (bytes_to_copy == 0) { |
| 764 | rc = 0; |
| 765 | break; |
| 766 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 767 | /* Number of frames information copied */ |
| 768 | buf += sizeof(unsigned char); |
| 769 | count -= sizeof(unsigned char); |
| 770 | } else { |
| 771 | offset = audio->out_frame_info[idx][1]; |
| 772 | bytes_to_copy = size; |
| 773 | } |
| 774 | |
| 775 | pr_debug("%s:session id %d: offset=%d nr of frames= %d\n", |
| 776 | __func__, audio->ac->session, |
| 777 | audio->out_frame_info[idx][1], |
| 778 | audio->out_frame_info[idx][0]); |
| 779 | |
| 780 | if (copy_to_user(buf, &data[offset], bytes_to_copy)) { |
| 781 | rc = -EFAULT; |
| 782 | break; |
| 783 | } |
| 784 | count -= bytes_to_copy; |
| 785 | buf += bytes_to_copy; |
| 786 | } else { |
| 787 | pr_err("%s:session id %d: short read data[%pK] bytesavail[%d]bytesrequest[%zd]\n", |
| 788 | __func__, |
| 789 | audio->ac->session, |
| 790 | data, size, count); |
| 791 | } |
| 792 | atomic_dec(&audio->out_count); |
| 793 | q6asm_read(audio->ac); |
| 794 | break; |
| 795 | } |
| 796 | mutex_unlock(&audio->read_lock); |
| 797 | |
| 798 | pr_debug("%s:session id %d: read: %zd bytes\n", __func__, |
| 799 | audio->ac->session, (buf-start)); |
Weiyin Jiang | 1cc531e | 2018-10-22 16:40:10 +0800 | [diff] [blame] | 800 | if (!rc) { |
| 801 | if (buf > start) |
| 802 | return buf - start; |
| 803 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 804 | return rc; |
| 805 | } |
| 806 | |
| 807 | static int extract_meta_info(char *buf, unsigned long *msw_ts, |
| 808 | unsigned long *lsw_ts, unsigned int *flags) |
| 809 | { |
| 810 | struct meta_in *meta = (struct meta_in *)buf; |
| 811 | *msw_ts = meta->ntimestamp.highpart; |
| 812 | *lsw_ts = meta->ntimestamp.lowpart; |
| 813 | *flags = meta->nflags; |
| 814 | return 0; |
| 815 | } |
| 816 | |
| 817 | ssize_t audio_in_write(struct file *file, |
| 818 | const char __user *buf, |
| 819 | size_t count, loff_t *pos) |
| 820 | { |
| 821 | struct q6audio_in *audio = file->private_data; |
| 822 | const char __user *start = buf; |
| 823 | size_t xfer = 0; |
| 824 | char *cpy_ptr; |
| 825 | int rc = 0; |
| 826 | unsigned char *data; |
| 827 | uint32_t size = 0; |
| 828 | uint32_t idx = 0; |
| 829 | uint32_t nflags = 0; |
| 830 | unsigned long msw_ts = 0; |
| 831 | unsigned long lsw_ts = 0; |
| 832 | uint32_t mfield_size = (audio->buf_cfg.meta_info_enable == 0) ? 0 : |
| 833 | sizeof(struct meta_in); |
| 834 | |
| 835 | pr_debug("%s:session id %d: to write[%zd]\n", __func__, |
| 836 | audio->ac->session, count); |
| 837 | if (audio->reset_event) |
| 838 | return -ENETRESET; |
| 839 | |
| 840 | if (!audio->enabled) |
| 841 | return -EFAULT; |
| 842 | mutex_lock(&audio->write_lock); |
| 843 | |
| 844 | while (count > 0) { |
| 845 | rc = wait_event_interruptible(audio->write_wait, |
| 846 | ((atomic_read(&audio->in_count) > 0) || |
| 847 | (audio->stopped) || |
| 848 | (audio->wflush) || (audio->event_abort))); |
| 849 | |
| 850 | if (audio->event_abort) { |
| 851 | rc = -EIO; |
| 852 | break; |
| 853 | } |
| 854 | |
| 855 | if (rc < 0) |
| 856 | break; |
| 857 | if (audio->stopped || audio->wflush) { |
| 858 | pr_debug("%s: session id %d: stop or flush\n", __func__, |
| 859 | audio->ac->session); |
| 860 | rc = -EBUSY; |
| 861 | break; |
| 862 | } |
| 863 | /* if no PCM data, might have only eos buffer |
| 864 | * such case do not hold cpu buffer |
| 865 | */ |
| 866 | if ((buf == start) && (count == mfield_size)) { |
| 867 | char eos_buf[sizeof(struct meta_in)]; |
| 868 | /* Processing beginning of user buffer */ |
| 869 | if (copy_from_user(eos_buf, buf, mfield_size)) { |
| 870 | rc = -EFAULT; |
| 871 | break; |
| 872 | } |
| 873 | /* Check if EOS flag is set and buffer has |
| 874 | * contains just meta field |
| 875 | */ |
| 876 | extract_meta_info(eos_buf, &msw_ts, &lsw_ts, |
| 877 | &nflags); |
| 878 | buf += mfield_size; |
| 879 | /* send the EOS and return */ |
| 880 | pr_debug("%s:session id %d: send EOS 0x%8x\n", |
| 881 | __func__, |
| 882 | audio->ac->session, nflags); |
| 883 | break; |
| 884 | } |
| 885 | data = (unsigned char *)q6asm_is_cpu_buf_avail(IN, audio->ac, |
| 886 | &size, &idx); |
| 887 | if (!data) { |
| 888 | pr_debug("%s:session id %d: No buf available\n", |
| 889 | __func__, audio->ac->session); |
| 890 | continue; |
| 891 | } |
| 892 | cpy_ptr = data; |
| 893 | if (audio->buf_cfg.meta_info_enable) { |
| 894 | if (buf == start) { |
| 895 | /* Processing beginning of user buffer */ |
| 896 | if (copy_from_user(cpy_ptr, buf, mfield_size)) { |
| 897 | rc = -EFAULT; |
| 898 | break; |
| 899 | } |
| 900 | /* Check if EOS flag is set and buffer has |
| 901 | * contains just meta field |
| 902 | */ |
| 903 | extract_meta_info(cpy_ptr, &msw_ts, &lsw_ts, |
| 904 | &nflags); |
| 905 | buf += mfield_size; |
| 906 | count -= mfield_size; |
| 907 | } else { |
| 908 | pr_debug("%s:session id %d: continuous buffer\n", |
| 909 | __func__, audio->ac->session); |
| 910 | } |
| 911 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 912 | |
Xiaoyu Ye | 6415c8a | 2019-02-01 17:55:06 -0800 | [diff] [blame] | 913 | xfer = (count > size) ? size : count; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 914 | if (copy_from_user(cpy_ptr, buf, xfer)) { |
| 915 | rc = -EFAULT; |
| 916 | break; |
| 917 | } |
| 918 | rc = q6asm_write(audio->ac, xfer, msw_ts, lsw_ts, 0x00); |
| 919 | if (rc < 0) { |
| 920 | rc = -EFAULT; |
| 921 | break; |
| 922 | } |
| 923 | atomic_dec(&audio->in_count); |
| 924 | count -= xfer; |
| 925 | buf += xfer; |
| 926 | } |
| 927 | mutex_unlock(&audio->write_lock); |
| 928 | pr_debug("%s:session id %d: eos_condition 0x%x buf[0x%pK] start[0x%pK]\n", |
| 929 | __func__, audio->ac->session, |
| 930 | nflags, buf, start); |
| 931 | if (nflags & AUD_EOS_SET) { |
| 932 | rc = q6asm_cmd(audio->ac, CMD_EOS); |
| 933 | pr_info("%s:session id %d: eos %d at input\n", __func__, |
| 934 | audio->ac->session, audio->eos_rsp); |
| 935 | } |
| 936 | pr_debug("%s:session id %d: Written %zd Avail Buf[%d]", __func__, |
| 937 | audio->ac->session, (buf - start - mfield_size), |
| 938 | atomic_read(&audio->in_count)); |
| 939 | if (!rc) { |
| 940 | if (buf > start) |
| 941 | return buf - start; |
| 942 | } |
| 943 | return rc; |
| 944 | } |
| 945 | |
| 946 | int audio_in_release(struct inode *inode, struct file *file) |
| 947 | { |
| 948 | struct q6audio_in *audio = file->private_data; |
| 949 | |
| 950 | pr_info("%s: session id %d\n", __func__, audio->ac->session); |
| 951 | mutex_lock(&audio->lock); |
| 952 | audio_in_disable(audio); |
| 953 | q6asm_audio_client_free(audio->ac); |
| 954 | mutex_unlock(&audio->lock); |
| 955 | kfree(audio->enc_cfg); |
| 956 | kfree(audio->codec_cfg); |
| 957 | kfree(audio); |
| 958 | return 0; |
| 959 | } |