Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved. |
| 2 | * |
| 3 | * Based on the mp3 native driver in arch/arm/mach-msm/qdsp5v2/audio_mp3.c |
| 4 | * |
| 5 | * Copyright (C) 2008 Google, Inc. |
| 6 | * Copyright (C) 2008 HTC Corporation |
| 7 | * |
| 8 | * All source code in this file is licensed under the following license except |
| 9 | * where indicated. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License version 2 as published |
| 13 | * by the Free Software Foundation. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 18 | * |
| 19 | * See the GNU General Public License for more details. |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, you can find it at http://www.fsf.org |
| 22 | */ |
| 23 | |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 24 | #include <asm/atomic.h> |
| 25 | #include <asm/ioctls.h> |
| 26 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 27 | #include <linux/module.h> |
| 28 | #include <linux/fs.h> |
| 29 | #include <linux/miscdevice.h> |
| 30 | #include <linux/uaccess.h> |
| 31 | #include <linux/kthread.h> |
| 32 | #include <linux/wait.h> |
| 33 | #include <linux/dma-mapping.h> |
| 34 | #include <linux/debugfs.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/list.h> |
| 37 | #include <linux/earlysuspend.h> |
| 38 | #include <linux/android_pmem.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 39 | #include <linux/slab.h> |
| 40 | #include <linux/msm_audio.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 41 | #include <linux/msm_audio_wma.h> |
| 42 | #include <linux/memory_alloc.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 43 | #include <mach/qdsp5v2/audio_dev_ctl.h> |
| 44 | |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 45 | #include <mach/msm_adsp.h> |
| 46 | #include <mach/iommu.h> |
| 47 | #include <mach/iommu_domains.h> |
| 48 | #include <mach/msm_subsystem_map.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 49 | #include <mach/qdsp5v2/qdsp5audppmsg.h> |
| 50 | #include <mach/qdsp5v2/qdsp5audplaycmdi.h> |
| 51 | #include <mach/qdsp5v2/qdsp5audplaymsg.h> |
| 52 | #include <mach/qdsp5v2/audio_dev_ctl.h> |
| 53 | #include <mach/qdsp5v2/audpp.h> |
| 54 | #include <mach/debug_mm.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 55 | #include <mach/msm_memtypes.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 56 | |
| 57 | /* Size must be power of 2 */ |
| 58 | #define BUFSZ_MAX 4110 /* Includes meta in size */ |
| 59 | #define BUFSZ_MIN 1038 /* Includes meta in size */ |
| 60 | #define DMASZ_MAX (BUFSZ_MAX * 2) |
| 61 | #define DMASZ_MIN (BUFSZ_MIN * 2) |
| 62 | |
| 63 | #define AUDPLAY_INVALID_READ_PTR_OFFSET 0xFFFF |
| 64 | #define AUDDEC_DEC_WMA 4 |
| 65 | |
| 66 | #define PCM_BUFSZ_MIN 8216 /* Hold one stereo WMA frame and meta out*/ |
| 67 | #define PCM_BUF_MAX_COUNT 5 /* DSP only accepts 5 buffers at most |
| 68 | but support 2 buffers currently */ |
| 69 | #define ROUTING_MODE_FTRT 1 |
| 70 | #define ROUTING_MODE_RT 2 |
| 71 | /* Decoder status received from AUDPPTASK */ |
| 72 | #define AUDPP_DEC_STATUS_SLEEP 0 |
| 73 | #define AUDPP_DEC_STATUS_INIT 1 |
| 74 | #define AUDPP_DEC_STATUS_CFG 2 |
| 75 | #define AUDPP_DEC_STATUS_PLAY 3 |
| 76 | |
| 77 | #define AUDWMA_METAFIELD_MASK 0xFFFF0000 |
| 78 | #define AUDWMA_EOS_FLG_OFFSET 0x0A /* Offset from beginning of buffer */ |
| 79 | #define AUDWMA_EOS_FLG_MASK 0x01 |
| 80 | #define AUDWMA_EOS_NONE 0x0 /* No EOS detected */ |
| 81 | #define AUDWMA_EOS_SET 0x1 /* EOS set in meta field */ |
| 82 | |
| 83 | #define AUDWMA_EVENT_NUM 10 /* Default number of pre-allocated event packets */ |
| 84 | |
| 85 | struct buffer { |
| 86 | void *data; |
| 87 | unsigned size; |
| 88 | unsigned used; /* Input usage actual DSP produced PCM size */ |
| 89 | unsigned addr; |
| 90 | unsigned short mfield_sz; /*only useful for data has meta field */ |
| 91 | }; |
| 92 | |
| 93 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 94 | struct audwma_suspend_ctl { |
| 95 | struct early_suspend node; |
| 96 | struct audio *audio; |
| 97 | }; |
| 98 | #endif |
| 99 | |
| 100 | struct audwma_event{ |
| 101 | struct list_head list; |
| 102 | int event_type; |
| 103 | union msm_audio_event_payload payload; |
| 104 | }; |
| 105 | |
| 106 | struct audio { |
| 107 | struct buffer out[2]; |
| 108 | |
| 109 | spinlock_t dsp_lock; |
| 110 | |
| 111 | uint8_t out_head; |
| 112 | uint8_t out_tail; |
| 113 | uint8_t out_needed; /* number of buffers the dsp is waiting for */ |
| 114 | unsigned out_dma_sz; |
| 115 | |
| 116 | atomic_t out_bytes; |
| 117 | |
| 118 | struct mutex lock; |
| 119 | struct mutex write_lock; |
| 120 | wait_queue_head_t write_wait; |
| 121 | |
| 122 | /* Host PCM section */ |
| 123 | struct buffer in[PCM_BUF_MAX_COUNT]; |
| 124 | struct mutex read_lock; |
| 125 | wait_queue_head_t read_wait; /* Wait queue for read */ |
| 126 | char *read_data; /* pointer to reader buffer */ |
| 127 | int32_t read_phys; /* physical address of reader buffer */ |
| 128 | uint8_t read_next; /* index to input buffers to be read next */ |
| 129 | uint8_t fill_next; /* index to buffer that DSP should be filling */ |
| 130 | uint8_t pcm_buf_count; /* number of pcm buffer allocated */ |
| 131 | /* ---- End of Host PCM section */ |
| 132 | |
| 133 | struct msm_adsp_module *audplay; |
| 134 | |
| 135 | /* configuration to use on next enable */ |
| 136 | uint32_t out_sample_rate; |
| 137 | uint32_t out_channel_mode; |
| 138 | |
| 139 | struct msm_audio_wma_config wma_config; |
| 140 | |
| 141 | /* data allocated for various buffers */ |
| 142 | char *data; |
| 143 | int32_t phys; /* physical address of write buffer */ |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 144 | struct msm_mapped_buffer *map_v_read; |
| 145 | struct msm_mapped_buffer *map_v_write; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 146 | |
| 147 | int mfield; /* meta field embedded in data */ |
| 148 | int rflush; /* Read flush */ |
| 149 | int wflush; /* Write flush */ |
| 150 | int opened; |
| 151 | int enabled; |
| 152 | int running; |
| 153 | int stopped; /* set when stopped, cleared on flush */ |
| 154 | int pcm_feedback; |
| 155 | int buf_refresh; |
| 156 | int teos; /* valid only if tunnel mode & no data left for decoder */ |
| 157 | enum msm_aud_decoder_state dec_state; /* Represents decoder state */ |
| 158 | int reserved; /* A byte is being reserved */ |
| 159 | char rsv_byte; /* Handle odd length user data */ |
| 160 | |
| 161 | const char *module_name; |
| 162 | unsigned queue_id; |
| 163 | uint16_t dec_id; |
| 164 | uint32_t read_ptr_offset; |
| 165 | int16_t source; |
| 166 | |
| 167 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 168 | struct audwma_suspend_ctl suspend_ctl; |
| 169 | #endif |
| 170 | |
| 171 | #ifdef CONFIG_DEBUG_FS |
| 172 | struct dentry *dentry; |
| 173 | #endif |
| 174 | |
| 175 | wait_queue_head_t wait; |
| 176 | struct list_head free_event_queue; |
| 177 | struct list_head event_queue; |
| 178 | wait_queue_head_t event_wait; |
| 179 | spinlock_t event_queue_lock; |
| 180 | struct mutex get_event_lock; |
| 181 | int event_abort; |
| 182 | /* AV sync Info */ |
| 183 | int avsync_flag; /* Flag to indicate feedback from DSP */ |
| 184 | wait_queue_head_t avsync_wait;/* Wait queue for AV Sync Message */ |
| 185 | /* flags, 48 bits sample/bytes counter per channel */ |
| 186 | uint16_t avsync[AUDPP_AVSYNC_CH_COUNT * AUDPP_AVSYNC_NUM_WORDS + 1]; |
| 187 | |
| 188 | uint32_t device_events; |
| 189 | |
| 190 | int eq_enable; |
| 191 | int eq_needs_commit; |
| 192 | struct audpp_cmd_cfg_object_params_eqalizer eq; |
| 193 | struct audpp_cmd_cfg_object_params_volume vol_pan; |
| 194 | }; |
| 195 | |
| 196 | static int auddec_dsp_config(struct audio *audio, int enable); |
| 197 | static void audpp_cmd_cfg_adec_params(struct audio *audio); |
| 198 | static void audpp_cmd_cfg_routing_mode(struct audio *audio); |
| 199 | static void audplay_send_data(struct audio *audio, unsigned needed); |
| 200 | static void audplay_config_hostpcm(struct audio *audio); |
| 201 | static void audplay_buffer_refresh(struct audio *audio); |
| 202 | static void audio_dsp_event(void *private, unsigned id, uint16_t *msg); |
| 203 | static void audwma_post_event(struct audio *audio, int type, |
| 204 | union msm_audio_event_payload payload); |
| 205 | |
| 206 | /* must be called with audio->lock held */ |
| 207 | static int audio_enable(struct audio *audio) |
| 208 | { |
| 209 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 210 | if (audio->enabled) |
| 211 | return 0; |
| 212 | |
| 213 | audio->dec_state = MSM_AUD_DECODER_STATE_NONE; |
| 214 | audio->out_tail = 0; |
| 215 | audio->out_needed = 0; |
| 216 | |
| 217 | if (msm_adsp_enable(audio->audplay)) { |
| 218 | MM_ERR("msm_adsp_enable(audplay) failed\n"); |
| 219 | return -ENODEV; |
| 220 | } |
| 221 | |
| 222 | if (audpp_enable(audio->dec_id, audio_dsp_event, audio)) { |
| 223 | MM_ERR("audpp_enable() failed\n"); |
| 224 | msm_adsp_disable(audio->audplay); |
| 225 | return -ENODEV; |
| 226 | } |
| 227 | |
| 228 | audio->enabled = 1; |
| 229 | return 0; |
| 230 | } |
| 231 | |
| 232 | static void wma_listner(u32 evt_id, union auddev_evt_data *evt_payload, |
| 233 | void *private_data) |
| 234 | { |
| 235 | struct audio *audio = (struct audio *) private_data; |
| 236 | switch (evt_id) { |
| 237 | case AUDDEV_EVT_DEV_RDY: |
| 238 | MM_DBG(":AUDDEV_EVT_DEV_RDY\n"); |
| 239 | audio->source |= (0x1 << evt_payload->routing_id); |
| 240 | if (audio->running == 1 && audio->enabled == 1) |
| 241 | audpp_route_stream(audio->dec_id, audio->source); |
| 242 | break; |
| 243 | case AUDDEV_EVT_DEV_RLS: |
| 244 | MM_DBG(":AUDDEV_EVT_DEV_RLS\n"); |
| 245 | audio->source &= ~(0x1 << evt_payload->routing_id); |
| 246 | if (audio->running == 1 && audio->enabled == 1) |
| 247 | audpp_route_stream(audio->dec_id, audio->source); |
| 248 | break; |
| 249 | case AUDDEV_EVT_STREAM_VOL_CHG: |
| 250 | audio->vol_pan.volume = evt_payload->session_vol; |
| 251 | MM_DBG(":AUDDEV_EVT_STREAM_VOL_CHG, stream vol %d\n", |
| 252 | audio->vol_pan.volume); |
| 253 | if (audio->running) |
| 254 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 255 | POPP); |
| 256 | break; |
| 257 | default: |
| 258 | MM_ERR(":ERROR:wrong event\n"); |
| 259 | break; |
| 260 | } |
| 261 | } |
| 262 | /* must be called with audio->lock held */ |
| 263 | static int audio_disable(struct audio *audio) |
| 264 | { |
| 265 | int rc = 0; |
| 266 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 267 | if (audio->enabled) { |
| 268 | audio->enabled = 0; |
| 269 | audio->dec_state = MSM_AUD_DECODER_STATE_NONE; |
| 270 | auddec_dsp_config(audio, 0); |
| 271 | rc = wait_event_interruptible_timeout(audio->wait, |
| 272 | audio->dec_state != MSM_AUD_DECODER_STATE_NONE, |
| 273 | msecs_to_jiffies(MSM_AUD_DECODER_WAIT_MS)); |
| 274 | if (rc == 0) |
| 275 | rc = -ETIMEDOUT; |
| 276 | else if (audio->dec_state != MSM_AUD_DECODER_STATE_CLOSE) |
| 277 | rc = -EFAULT; |
| 278 | else |
| 279 | rc = 0; |
| 280 | wake_up(&audio->write_wait); |
| 281 | wake_up(&audio->read_wait); |
| 282 | msm_adsp_disable(audio->audplay); |
| 283 | audpp_disable(audio->dec_id, audio); |
| 284 | audio->out_needed = 0; |
| 285 | } |
| 286 | return rc; |
| 287 | } |
| 288 | |
| 289 | /* ------------------- dsp --------------------- */ |
| 290 | static void audio_update_pcm_buf_entry(struct audio *audio, |
| 291 | uint32_t *payload) |
| 292 | { |
| 293 | uint8_t index; |
| 294 | unsigned long flags; |
| 295 | |
| 296 | if (audio->rflush) |
| 297 | return; |
| 298 | |
| 299 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 300 | for (index = 0; index < payload[1]; index++) { |
| 301 | if (audio->in[audio->fill_next].addr == |
| 302 | payload[2 + index * 2]) { |
| 303 | MM_DBG("audio_update_pcm_buf_entry: \ |
| 304 | in[%d] ready\n", audio->fill_next); |
| 305 | audio->in[audio->fill_next].used = |
| 306 | payload[3 + index * 2]; |
| 307 | if ((++audio->fill_next) == audio->pcm_buf_count) |
| 308 | audio->fill_next = 0; |
| 309 | } else { |
| 310 | MM_ERR("audio_update_pcm_buf_entry: \ |
| 311 | expected=%x ret=%x\n", |
| 312 | audio->in[audio->fill_next].addr, |
| 313 | payload[1 + index * 2]); |
| 314 | break; |
| 315 | } |
| 316 | } |
| 317 | if (audio->in[audio->fill_next].used == 0) { |
| 318 | audplay_buffer_refresh(audio); |
| 319 | } else { |
| 320 | MM_DBG("read cannot keep up\n"); |
| 321 | audio->buf_refresh = 1; |
| 322 | } |
| 323 | wake_up(&audio->read_wait); |
| 324 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 325 | } |
| 326 | |
| 327 | static void audplay_dsp_event(void *data, unsigned id, size_t len, |
| 328 | void (*getevent) (void *ptr, size_t len)) |
| 329 | { |
| 330 | struct audio *audio = data; |
| 331 | uint32_t msg[28]; |
| 332 | |
| 333 | getevent(msg, sizeof(msg)); |
| 334 | |
| 335 | MM_DBG("msg_id=%x\n", id); |
| 336 | |
| 337 | switch (id) { |
| 338 | case AUDPLAY_MSG_DEC_NEEDS_DATA: |
| 339 | audplay_send_data(audio, 1); |
| 340 | break; |
| 341 | |
| 342 | case AUDPLAY_MSG_BUFFER_UPDATE: |
| 343 | audio_update_pcm_buf_entry(audio, msg); |
| 344 | break; |
| 345 | |
| 346 | case ADSP_MESSAGE_ID: |
| 347 | MM_DBG("Received ADSP event: module enable(audplaytask)\n"); |
| 348 | break; |
| 349 | |
| 350 | default: |
| 351 | MM_ERR("unexpected message from decoder \n"); |
| 352 | break; |
| 353 | } |
| 354 | } |
| 355 | |
| 356 | static void audio_dsp_event(void *private, unsigned id, uint16_t *msg) |
| 357 | { |
| 358 | struct audio *audio = private; |
| 359 | |
| 360 | switch (id) { |
| 361 | case AUDPP_MSG_STATUS_MSG:{ |
| 362 | unsigned status = msg[1]; |
| 363 | |
| 364 | switch (status) { |
| 365 | case AUDPP_DEC_STATUS_SLEEP: { |
| 366 | uint16_t reason = msg[2]; |
| 367 | MM_DBG("decoder status:sleep reason = \ |
| 368 | 0x%04x\n", reason); |
| 369 | if ((reason == AUDPP_MSG_REASON_MEM) |
| 370 | || (reason == |
| 371 | AUDPP_MSG_REASON_NODECODER)) { |
| 372 | audio->dec_state = |
| 373 | MSM_AUD_DECODER_STATE_FAILURE; |
| 374 | wake_up(&audio->wait); |
| 375 | } else if (reason == AUDPP_MSG_REASON_NONE) { |
| 376 | /* decoder is in disable state */ |
| 377 | audio->dec_state = |
| 378 | MSM_AUD_DECODER_STATE_CLOSE; |
| 379 | wake_up(&audio->wait); |
| 380 | } |
| 381 | break; |
| 382 | } |
| 383 | case AUDPP_DEC_STATUS_INIT: |
| 384 | MM_DBG("decoder status: init\n"); |
| 385 | if (audio->pcm_feedback) |
| 386 | audpp_cmd_cfg_routing_mode(audio); |
| 387 | else |
| 388 | audpp_cmd_cfg_adec_params(audio); |
| 389 | break; |
| 390 | |
| 391 | case AUDPP_DEC_STATUS_CFG: |
| 392 | MM_DBG("decoder status: cfg\n"); |
| 393 | break; |
| 394 | case AUDPP_DEC_STATUS_PLAY: |
| 395 | MM_DBG("decoder status: play \n"); |
| 396 | /* send mixer command */ |
| 397 | audpp_route_stream(audio->dec_id, |
| 398 | audio->source); |
| 399 | if (audio->pcm_feedback) { |
| 400 | audplay_config_hostpcm(audio); |
| 401 | audplay_buffer_refresh(audio); |
| 402 | } |
| 403 | audio->dec_state = |
| 404 | MSM_AUD_DECODER_STATE_SUCCESS; |
| 405 | wake_up(&audio->wait); |
| 406 | break; |
| 407 | default: |
| 408 | MM_ERR("unknown decoder status\n"); |
| 409 | } |
| 410 | break; |
| 411 | } |
| 412 | case AUDPP_MSG_CFG_MSG: |
| 413 | if (msg[0] == AUDPP_MSG_ENA_ENA) { |
| 414 | MM_DBG("CFG_MSG ENABLE\n"); |
| 415 | auddec_dsp_config(audio, 1); |
| 416 | audio->out_needed = 0; |
| 417 | audio->running = 1; |
| 418 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 419 | POPP); |
| 420 | audpp_dsp_set_eq(audio->dec_id, audio->eq_enable, |
| 421 | &audio->eq, POPP); |
| 422 | } else if (msg[0] == AUDPP_MSG_ENA_DIS) { |
| 423 | MM_DBG("CFG_MSG DISABLE\n"); |
| 424 | audio->running = 0; |
| 425 | } else { |
| 426 | MM_DBG("CFG_MSG %d?\n", msg[0]); |
| 427 | } |
| 428 | break; |
| 429 | case AUDPP_MSG_ROUTING_ACK: |
| 430 | MM_DBG("ROUTING_ACK mode=%d\n", msg[1]); |
| 431 | audpp_cmd_cfg_adec_params(audio); |
| 432 | break; |
| 433 | |
| 434 | case AUDPP_MSG_FLUSH_ACK: |
| 435 | MM_DBG("FLUSH_ACK\n"); |
| 436 | audio->wflush = 0; |
| 437 | audio->rflush = 0; |
| 438 | wake_up(&audio->write_wait); |
| 439 | if (audio->pcm_feedback) |
| 440 | audplay_buffer_refresh(audio); |
| 441 | break; |
| 442 | |
| 443 | case AUDPP_MSG_PCMDMAMISSED: |
| 444 | MM_DBG("PCMDMAMISSED\n"); |
| 445 | audio->teos = 1; |
| 446 | wake_up(&audio->write_wait); |
| 447 | break; |
| 448 | |
| 449 | case AUDPP_MSG_AVSYNC_MSG: |
| 450 | MM_DBG("AUDPP_MSG_AVSYNC_MSG\n"); |
| 451 | memcpy(&audio->avsync[0], msg, sizeof(audio->avsync)); |
| 452 | audio->avsync_flag = 1; |
| 453 | wake_up(&audio->avsync_wait); |
| 454 | break; |
| 455 | |
| 456 | default: |
| 457 | MM_ERR("UNKNOWN (%d)\n", id); |
| 458 | } |
| 459 | |
| 460 | } |
| 461 | |
| 462 | static struct msm_adsp_ops audplay_adsp_ops_wma = { |
| 463 | .event = audplay_dsp_event, |
| 464 | }; |
| 465 | |
| 466 | #define audplay_send_queue0(audio, cmd, len) \ |
| 467 | msm_adsp_write(audio->audplay, audio->queue_id, \ |
| 468 | cmd, len) |
| 469 | |
| 470 | static int auddec_dsp_config(struct audio *audio, int enable) |
| 471 | { |
| 472 | struct audpp_cmd_cfg_dec_type cfg_dec_cmd; |
| 473 | |
| 474 | memset(&cfg_dec_cmd, 0, sizeof(cfg_dec_cmd)); |
| 475 | |
| 476 | cfg_dec_cmd.cmd_id = AUDPP_CMD_CFG_DEC_TYPE; |
| 477 | if (enable) |
| 478 | cfg_dec_cmd.dec_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | |
| 479 | AUDPP_CMD_ENA_DEC_V | AUDDEC_DEC_WMA; |
| 480 | else |
| 481 | cfg_dec_cmd.dec_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | |
| 482 | AUDPP_CMD_DIS_DEC_V; |
| 483 | cfg_dec_cmd.dm_mode = 0x0; |
| 484 | cfg_dec_cmd.stream_id = audio->dec_id; |
| 485 | return audpp_send_queue1(&cfg_dec_cmd, sizeof(cfg_dec_cmd)); |
| 486 | } |
| 487 | |
| 488 | static void audpp_cmd_cfg_adec_params(struct audio *audio) |
| 489 | { |
| 490 | struct audpp_cmd_cfg_adec_params_wma cmd; |
| 491 | |
| 492 | memset(&cmd, 0, sizeof(cmd)); |
| 493 | cmd.common.cmd_id = AUDPP_CMD_CFG_ADEC_PARAMS; |
| 494 | cmd.common.length = AUDPP_CMD_CFG_ADEC_PARAMS_WMA_LEN; |
| 495 | cmd.common.dec_id = audio->dec_id; |
| 496 | cmd.common.input_sampling_frequency = audio->out_sample_rate; |
| 497 | |
| 498 | /* |
| 499 | * Test done for sample with the following configuration |
| 500 | * armdatareqthr = 1262 |
| 501 | * channelsdecoded = 1(MONO)/2(STEREO) |
| 502 | * wmabytespersec = Tested with 6003 Bytes per sec |
| 503 | * wmasamplingfreq = 44100 |
| 504 | * wmaencoderopts = 31 |
| 505 | */ |
| 506 | |
| 507 | cmd.armdatareqthr = audio->wma_config.armdatareqthr; |
| 508 | cmd.channelsdecoded = audio->wma_config.channelsdecoded; |
| 509 | cmd.wmabytespersec = audio->wma_config.wmabytespersec; |
| 510 | cmd.wmasamplingfreq = audio->wma_config.wmasamplingfreq; |
| 511 | cmd.wmaencoderopts = audio->wma_config.wmaencoderopts; |
| 512 | |
| 513 | audpp_send_queue2(&cmd, sizeof(cmd)); |
| 514 | } |
| 515 | |
| 516 | static void audpp_cmd_cfg_routing_mode(struct audio *audio) |
| 517 | { |
| 518 | struct audpp_cmd_routing_mode cmd; |
| 519 | |
| 520 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 521 | memset(&cmd, 0, sizeof(cmd)); |
| 522 | cmd.cmd_id = AUDPP_CMD_ROUTING_MODE; |
| 523 | cmd.object_number = audio->dec_id; |
| 524 | if (audio->pcm_feedback) |
| 525 | cmd.routing_mode = ROUTING_MODE_FTRT; |
| 526 | else |
| 527 | cmd.routing_mode = ROUTING_MODE_RT; |
| 528 | |
| 529 | audpp_send_queue1(&cmd, sizeof(cmd)); |
| 530 | } |
| 531 | |
| 532 | static void audplay_buffer_refresh(struct audio *audio) |
| 533 | { |
| 534 | struct audplay_cmd_buffer_refresh refresh_cmd; |
| 535 | |
| 536 | refresh_cmd.cmd_id = AUDPLAY_CMD_BUFFER_REFRESH; |
| 537 | refresh_cmd.num_buffers = 1; |
| 538 | refresh_cmd.buf0_address = audio->in[audio->fill_next].addr; |
| 539 | refresh_cmd.buf0_length = audio->in[audio->fill_next].size; |
| 540 | refresh_cmd.buf_read_count = 0; |
| 541 | |
| 542 | MM_DBG("buf0_addr=%x buf0_len=%d\n", |
| 543 | refresh_cmd.buf0_address, |
| 544 | refresh_cmd.buf0_length); |
| 545 | |
| 546 | (void)audplay_send_queue0(audio, &refresh_cmd, sizeof(refresh_cmd)); |
| 547 | } |
| 548 | |
| 549 | static void audplay_config_hostpcm(struct audio *audio) |
| 550 | { |
| 551 | struct audplay_cmd_hpcm_buf_cfg cfg_cmd; |
| 552 | |
| 553 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 554 | cfg_cmd.cmd_id = AUDPLAY_CMD_HPCM_BUF_CFG; |
| 555 | cfg_cmd.max_buffers = audio->pcm_buf_count; |
| 556 | cfg_cmd.byte_swap = 0; |
| 557 | cfg_cmd.hostpcm_config = (0x8000) | (0x4000); |
| 558 | cfg_cmd.feedback_frequency = 1; |
| 559 | cfg_cmd.partition_number = 0; |
| 560 | |
| 561 | (void)audplay_send_queue0(audio, &cfg_cmd, sizeof(cfg_cmd)); |
| 562 | } |
| 563 | |
| 564 | |
| 565 | static int audplay_dsp_send_data_avail(struct audio *audio, |
| 566 | unsigned idx, unsigned len) |
| 567 | { |
| 568 | struct audplay_cmd_bitstream_data_avail_nt2 cmd; |
| 569 | |
| 570 | cmd.cmd_id = AUDPLAY_CMD_BITSTREAM_DATA_AVAIL_NT2; |
| 571 | if (!audio->pcm_feedback) |
| 572 | cmd.decoder_id = 0; |
| 573 | else { |
| 574 | if (audio->mfield) |
| 575 | cmd.decoder_id = AUDWMA_METAFIELD_MASK | |
| 576 | (audio->out[idx].mfield_sz >> 1); |
| 577 | else |
| 578 | cmd.decoder_id = audio->dec_id; |
| 579 | } |
| 580 | cmd.buf_ptr = audio->out[idx].addr; |
| 581 | cmd.buf_size = len/2; |
| 582 | cmd.partition_number = 0; |
| 583 | return audplay_send_queue0(audio, &cmd, sizeof(cmd)); |
| 584 | } |
| 585 | |
| 586 | static void audplay_send_data(struct audio *audio, unsigned needed) |
| 587 | { |
| 588 | struct buffer *frame; |
| 589 | unsigned long flags; |
| 590 | |
| 591 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 592 | if (!audio->running) |
| 593 | goto done; |
| 594 | |
| 595 | if (audio->wflush) { |
| 596 | audio->out_needed = 1; |
| 597 | goto done; |
| 598 | } |
| 599 | |
| 600 | if (needed && !audio->wflush) { |
| 601 | /* We were called from the callback because the DSP |
| 602 | * requested more data. Note that the DSP does want |
| 603 | * more data, and if a buffer was in-flight, mark it |
| 604 | * as available (since the DSP must now be done with |
| 605 | * it). |
| 606 | */ |
| 607 | audio->out_needed = 1; |
| 608 | frame = audio->out + audio->out_tail; |
| 609 | if (frame->used == 0xffffffff) { |
| 610 | MM_DBG("frame %d free\n", audio->out_tail); |
| 611 | frame->used = 0; |
| 612 | audio->out_tail ^= 1; |
| 613 | wake_up(&audio->write_wait); |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | if (audio->out_needed) { |
| 618 | /* If the DSP currently wants data and we have a |
| 619 | * buffer available, we will send it and reset |
| 620 | * the needed flag. We'll mark the buffer as in-flight |
| 621 | * so that it won't be recycled until the next buffer |
| 622 | * is requested |
| 623 | */ |
| 624 | |
| 625 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 626 | frame = audio->out + audio->out_tail; |
| 627 | if (frame->used) { |
| 628 | BUG_ON(frame->used == 0xffffffff); |
| 629 | MM_DBG("frame %d busy\n", audio->out_tail); |
| 630 | audplay_dsp_send_data_avail(audio, audio->out_tail, |
| 631 | frame->used); |
| 632 | frame->used = 0xffffffff; |
| 633 | audio->out_needed = 0; |
| 634 | } |
| 635 | } |
| 636 | done: |
| 637 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 638 | } |
| 639 | |
| 640 | /* ------------------- device --------------------- */ |
| 641 | |
| 642 | static void audio_flush(struct audio *audio) |
| 643 | { |
| 644 | audio->out[0].used = 0; |
| 645 | audio->out[1].used = 0; |
| 646 | audio->out_head = 0; |
| 647 | audio->out_tail = 0; |
| 648 | audio->reserved = 0; |
| 649 | atomic_set(&audio->out_bytes, 0); |
| 650 | } |
| 651 | |
| 652 | static void audio_flush_pcm_buf(struct audio *audio) |
| 653 | { |
| 654 | uint8_t index; |
| 655 | |
| 656 | for (index = 0; index < PCM_BUF_MAX_COUNT; index++) |
| 657 | audio->in[index].used = 0; |
| 658 | audio->buf_refresh = 0; |
| 659 | audio->read_next = 0; |
| 660 | audio->fill_next = 0; |
| 661 | } |
| 662 | |
| 663 | static void audio_ioport_reset(struct audio *audio) |
| 664 | { |
| 665 | /* Make sure read/write thread are free from |
| 666 | * sleep and knowing that system is not able |
| 667 | * to process io request at the moment |
| 668 | */ |
| 669 | wake_up(&audio->write_wait); |
| 670 | mutex_lock(&audio->write_lock); |
| 671 | audio_flush(audio); |
| 672 | mutex_unlock(&audio->write_lock); |
| 673 | wake_up(&audio->read_wait); |
| 674 | mutex_lock(&audio->read_lock); |
| 675 | audio_flush_pcm_buf(audio); |
| 676 | mutex_unlock(&audio->read_lock); |
| 677 | audio->avsync_flag = 1; |
| 678 | wake_up(&audio->avsync_wait); |
| 679 | } |
| 680 | |
| 681 | static int audwma_events_pending(struct audio *audio) |
| 682 | { |
| 683 | unsigned long flags; |
| 684 | int empty; |
| 685 | |
| 686 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 687 | empty = !list_empty(&audio->event_queue); |
| 688 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 689 | return empty || audio->event_abort; |
| 690 | } |
| 691 | |
| 692 | static void audwma_reset_event_queue(struct audio *audio) |
| 693 | { |
| 694 | unsigned long flags; |
| 695 | struct audwma_event *drv_evt; |
| 696 | struct list_head *ptr, *next; |
| 697 | |
| 698 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 699 | list_for_each_safe(ptr, next, &audio->event_queue) { |
| 700 | drv_evt = list_first_entry(&audio->event_queue, |
| 701 | struct audwma_event, list); |
| 702 | list_del(&drv_evt->list); |
| 703 | kfree(drv_evt); |
| 704 | } |
| 705 | list_for_each_safe(ptr, next, &audio->free_event_queue) { |
| 706 | drv_evt = list_first_entry(&audio->free_event_queue, |
| 707 | struct audwma_event, list); |
| 708 | list_del(&drv_evt->list); |
| 709 | kfree(drv_evt); |
| 710 | } |
| 711 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 712 | |
| 713 | return; |
| 714 | } |
| 715 | |
| 716 | static long audwma_process_event_req(struct audio *audio, void __user *arg) |
| 717 | { |
| 718 | long rc; |
| 719 | struct msm_audio_event usr_evt; |
| 720 | struct audwma_event *drv_evt = NULL; |
| 721 | int timeout; |
| 722 | unsigned long flags; |
| 723 | |
| 724 | if (copy_from_user(&usr_evt, arg, sizeof(struct msm_audio_event))) |
| 725 | return -EFAULT; |
| 726 | |
| 727 | timeout = (int) usr_evt.timeout_ms; |
| 728 | |
| 729 | if (timeout > 0) { |
| 730 | rc = wait_event_interruptible_timeout( |
| 731 | audio->event_wait, audwma_events_pending(audio), |
| 732 | msecs_to_jiffies(timeout)); |
| 733 | if (rc == 0) |
| 734 | return -ETIMEDOUT; |
| 735 | } else { |
| 736 | rc = wait_event_interruptible( |
| 737 | audio->event_wait, audwma_events_pending(audio)); |
| 738 | } |
| 739 | |
| 740 | if (rc < 0) |
| 741 | return rc; |
| 742 | |
| 743 | if (audio->event_abort) { |
| 744 | audio->event_abort = 0; |
| 745 | return -ENODEV; |
| 746 | } |
| 747 | |
| 748 | rc = 0; |
| 749 | |
| 750 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 751 | if (!list_empty(&audio->event_queue)) { |
| 752 | drv_evt = list_first_entry(&audio->event_queue, |
| 753 | struct audwma_event, list); |
| 754 | list_del(&drv_evt->list); |
| 755 | } |
| 756 | |
| 757 | if (drv_evt) { |
| 758 | usr_evt.event_type = drv_evt->event_type; |
| 759 | usr_evt.event_payload = drv_evt->payload; |
| 760 | list_add_tail(&drv_evt->list, &audio->free_event_queue); |
| 761 | } else |
| 762 | rc = -1; |
| 763 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 764 | |
| 765 | if (!rc && copy_to_user(arg, &usr_evt, sizeof(usr_evt))) |
| 766 | rc = -EFAULT; |
| 767 | |
| 768 | return rc; |
| 769 | } |
| 770 | |
| 771 | static int audio_enable_eq(struct audio *audio, int enable) |
| 772 | { |
| 773 | if (audio->eq_enable == enable && !audio->eq_needs_commit) |
| 774 | return 0; |
| 775 | |
| 776 | audio->eq_enable = enable; |
| 777 | |
| 778 | if (audio->running) { |
| 779 | audpp_dsp_set_eq(audio->dec_id, enable, &audio->eq, POPP); |
| 780 | audio->eq_needs_commit = 0; |
| 781 | } |
| 782 | return 0; |
| 783 | } |
| 784 | |
| 785 | static int audio_get_avsync_data(struct audio *audio, |
| 786 | struct msm_audio_stats *stats) |
| 787 | { |
| 788 | int rc = -EINVAL; |
| 789 | unsigned long flags; |
| 790 | |
| 791 | local_irq_save(flags); |
| 792 | if (audio->dec_id == audio->avsync[0] && audio->avsync_flag) { |
| 793 | /* av_sync sample count */ |
| 794 | stats->sample_count = (audio->avsync[2] << 16) | |
| 795 | (audio->avsync[3]); |
| 796 | |
| 797 | /* av_sync byte_count */ |
| 798 | stats->byte_count = (audio->avsync[5] << 16) | |
| 799 | (audio->avsync[6]); |
| 800 | |
| 801 | audio->avsync_flag = 0; |
| 802 | rc = 0; |
| 803 | } |
| 804 | local_irq_restore(flags); |
| 805 | return rc; |
| 806 | |
| 807 | } |
| 808 | |
| 809 | static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| 810 | { |
| 811 | struct audio *audio = file->private_data; |
| 812 | int rc = -EINVAL; |
| 813 | unsigned long flags = 0; |
| 814 | uint16_t enable_mask; |
| 815 | int enable; |
| 816 | int prev_state; |
| 817 | |
| 818 | MM_DBG("cmd = %d\n", cmd); |
| 819 | |
| 820 | if (cmd == AUDIO_GET_STATS) { |
| 821 | struct msm_audio_stats stats; |
| 822 | |
| 823 | audio->avsync_flag = 0; |
| 824 | memset(&stats, 0, sizeof(stats)); |
| 825 | if (audpp_query_avsync(audio->dec_id) < 0) |
| 826 | return rc; |
| 827 | |
| 828 | rc = wait_event_interruptible_timeout(audio->avsync_wait, |
| 829 | (audio->avsync_flag == 1), |
| 830 | msecs_to_jiffies(AUDPP_AVSYNC_EVENT_TIMEOUT)); |
| 831 | |
| 832 | if (rc < 0) |
| 833 | return rc; |
| 834 | else if ((rc > 0) || ((rc == 0) && (audio->avsync_flag == 1))) { |
| 835 | if (audio_get_avsync_data(audio, &stats) < 0) |
| 836 | return rc; |
| 837 | |
| 838 | if (copy_to_user((void *)arg, &stats, sizeof(stats))) |
| 839 | return -EFAULT; |
| 840 | return 0; |
| 841 | } else |
| 842 | return -EAGAIN; |
| 843 | } |
| 844 | |
| 845 | switch (cmd) { |
| 846 | case AUDIO_ENABLE_AUDPP: |
| 847 | if (copy_from_user(&enable_mask, (void *) arg, |
| 848 | sizeof(enable_mask))) { |
| 849 | rc = -EFAULT; |
| 850 | break; |
| 851 | } |
| 852 | |
| 853 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 854 | enable = (enable_mask & EQ_ENABLE) ? 1 : 0; |
| 855 | audio_enable_eq(audio, enable); |
| 856 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 857 | rc = 0; |
| 858 | break; |
| 859 | case AUDIO_SET_VOLUME: |
| 860 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 861 | audio->vol_pan.volume = arg; |
| 862 | if (audio->running) |
| 863 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 864 | POPP); |
| 865 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 866 | rc = 0; |
| 867 | break; |
| 868 | |
| 869 | case AUDIO_SET_PAN: |
| 870 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 871 | audio->vol_pan.pan = arg; |
| 872 | if (audio->running) |
| 873 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 874 | POPP); |
| 875 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 876 | rc = 0; |
| 877 | break; |
| 878 | |
| 879 | case AUDIO_SET_EQ: |
| 880 | prev_state = audio->eq_enable; |
| 881 | audio->eq_enable = 0; |
| 882 | if (copy_from_user(&audio->eq.num_bands, (void *) arg, |
| 883 | sizeof(audio->eq) - |
| 884 | (AUDPP_CMD_CFG_OBJECT_PARAMS_COMMON_LEN + 2))) { |
| 885 | rc = -EFAULT; |
| 886 | break; |
| 887 | } |
| 888 | audio->eq_enable = prev_state; |
| 889 | audio->eq_needs_commit = 1; |
| 890 | rc = 0; |
| 891 | break; |
| 892 | } |
| 893 | |
| 894 | if (-EINVAL != rc) |
| 895 | return rc; |
| 896 | |
| 897 | if (cmd == AUDIO_GET_EVENT) { |
| 898 | MM_DBG("AUDIO_GET_EVENT\n"); |
| 899 | if (mutex_trylock(&audio->get_event_lock)) { |
| 900 | rc = audwma_process_event_req(audio, |
| 901 | (void __user *) arg); |
| 902 | mutex_unlock(&audio->get_event_lock); |
| 903 | } else |
| 904 | rc = -EBUSY; |
| 905 | return rc; |
| 906 | } |
| 907 | |
| 908 | if (cmd == AUDIO_ABORT_GET_EVENT) { |
| 909 | audio->event_abort = 1; |
| 910 | wake_up(&audio->event_wait); |
| 911 | return 0; |
| 912 | } |
| 913 | |
| 914 | mutex_lock(&audio->lock); |
| 915 | switch (cmd) { |
| 916 | case AUDIO_START: |
| 917 | MM_DBG("AUDIO_START\n"); |
| 918 | rc = audio_enable(audio); |
| 919 | if (!rc) { |
| 920 | rc = wait_event_interruptible_timeout(audio->wait, |
| 921 | audio->dec_state != MSM_AUD_DECODER_STATE_NONE, |
| 922 | msecs_to_jiffies(MSM_AUD_DECODER_WAIT_MS)); |
| 923 | MM_INFO("dec_state %d rc = %d\n", audio->dec_state, rc); |
| 924 | |
| 925 | if (audio->dec_state != MSM_AUD_DECODER_STATE_SUCCESS) |
| 926 | rc = -ENODEV; |
| 927 | else |
| 928 | rc = 0; |
| 929 | } |
| 930 | break; |
| 931 | case AUDIO_STOP: |
| 932 | MM_DBG("AUDIO_STOP\n"); |
| 933 | rc = audio_disable(audio); |
| 934 | audio->stopped = 1; |
| 935 | audio_ioport_reset(audio); |
| 936 | audio->stopped = 0; |
| 937 | break; |
| 938 | case AUDIO_FLUSH: |
| 939 | MM_DBG("AUDIO_FLUSH\n"); |
| 940 | audio->rflush = 1; |
| 941 | audio->wflush = 1; |
| 942 | audio_ioport_reset(audio); |
| 943 | if (audio->running) { |
| 944 | audpp_flush(audio->dec_id); |
| 945 | rc = wait_event_interruptible(audio->write_wait, |
| 946 | !audio->wflush); |
| 947 | if (rc < 0) { |
| 948 | MM_ERR("AUDIO_FLUSH interrupted\n"); |
| 949 | rc = -EINTR; |
| 950 | } |
| 951 | } else { |
| 952 | audio->rflush = 0; |
| 953 | audio->wflush = 0; |
| 954 | } |
| 955 | break; |
| 956 | case AUDIO_SET_CONFIG: { |
| 957 | struct msm_audio_config config; |
| 958 | if (copy_from_user(&config, (void *) arg, sizeof(config))) { |
| 959 | rc = -EFAULT; |
| 960 | break; |
| 961 | } |
| 962 | if (config.channel_count == 1) { |
| 963 | config.channel_count = AUDPP_CMD_PCM_INTF_MONO_V; |
| 964 | } else if (config.channel_count == 2) { |
| 965 | config.channel_count = AUDPP_CMD_PCM_INTF_STEREO_V; |
| 966 | } else { |
| 967 | rc = -EINVAL; |
| 968 | break; |
| 969 | } |
| 970 | audio->mfield = config.meta_field; |
| 971 | audio->out_sample_rate = config.sample_rate; |
| 972 | audio->out_channel_mode = config.channel_count; |
| 973 | rc = 0; |
| 974 | break; |
| 975 | } |
| 976 | case AUDIO_GET_CONFIG: { |
| 977 | struct msm_audio_config config; |
| 978 | config.buffer_size = (audio->out_dma_sz >> 1); |
| 979 | config.buffer_count = 2; |
| 980 | config.sample_rate = audio->out_sample_rate; |
| 981 | if (audio->out_channel_mode == AUDPP_CMD_PCM_INTF_MONO_V) |
| 982 | config.channel_count = 1; |
| 983 | else |
| 984 | config.channel_count = 2; |
| 985 | config.meta_field = 0; |
| 986 | config.unused[0] = 0; |
| 987 | config.unused[1] = 0; |
| 988 | config.unused[2] = 0; |
| 989 | if (copy_to_user((void *) arg, &config, sizeof(config))) |
| 990 | rc = -EFAULT; |
| 991 | else |
| 992 | rc = 0; |
| 993 | |
| 994 | break; |
| 995 | } |
| 996 | case AUDIO_GET_WMA_CONFIG:{ |
| 997 | if (copy_to_user((void *)arg, &audio->wma_config, |
| 998 | sizeof(audio->wma_config))) |
| 999 | rc = -EFAULT; |
| 1000 | else |
| 1001 | rc = 0; |
| 1002 | break; |
| 1003 | } |
| 1004 | case AUDIO_SET_WMA_CONFIG:{ |
| 1005 | struct msm_audio_wma_config usr_config; |
| 1006 | |
| 1007 | if (copy_from_user |
| 1008 | (&usr_config, (void *)arg, |
| 1009 | sizeof(usr_config))) { |
| 1010 | rc = -EFAULT; |
| 1011 | break; |
| 1012 | } |
| 1013 | |
| 1014 | audio->wma_config = usr_config; |
| 1015 | rc = 0; |
| 1016 | break; |
| 1017 | } |
| 1018 | case AUDIO_GET_PCM_CONFIG:{ |
| 1019 | struct msm_audio_pcm_config config; |
| 1020 | config.pcm_feedback = audio->pcm_feedback; |
| 1021 | config.buffer_count = PCM_BUF_MAX_COUNT; |
| 1022 | config.buffer_size = PCM_BUFSZ_MIN; |
| 1023 | if (copy_to_user((void *)arg, &config, |
| 1024 | sizeof(config))) |
| 1025 | rc = -EFAULT; |
| 1026 | else |
| 1027 | rc = 0; |
| 1028 | break; |
| 1029 | } |
| 1030 | case AUDIO_SET_PCM_CONFIG:{ |
| 1031 | struct msm_audio_pcm_config config; |
| 1032 | if (copy_from_user |
| 1033 | (&config, (void *)arg, sizeof(config))) { |
| 1034 | rc = -EFAULT; |
| 1035 | break; |
| 1036 | } |
| 1037 | if (config.pcm_feedback != audio->pcm_feedback) { |
| 1038 | MM_ERR("Not sufficient permission to" |
| 1039 | "change the playback mode\n"); |
| 1040 | rc = -EACCES; |
| 1041 | break; |
| 1042 | } |
| 1043 | if ((config.buffer_count > PCM_BUF_MAX_COUNT) || |
| 1044 | (config.buffer_count == 1)) |
| 1045 | config.buffer_count = PCM_BUF_MAX_COUNT; |
| 1046 | |
| 1047 | if (config.buffer_size < PCM_BUFSZ_MIN) |
| 1048 | config.buffer_size = PCM_BUFSZ_MIN; |
| 1049 | |
| 1050 | /* Check if pcm feedback is required */ |
| 1051 | if ((config.pcm_feedback) && (!audio->read_data)) { |
| 1052 | MM_DBG("allocate PCM buffer %d\n", |
| 1053 | config.buffer_count * |
| 1054 | config.buffer_size); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1055 | audio->read_phys = |
| 1056 | allocate_contiguous_ebi_nomap( |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1057 | config.buffer_size * |
| 1058 | config.buffer_count, |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1059 | SZ_4K); |
| 1060 | if (!audio->read_phys) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1061 | rc = -ENOMEM; |
| 1062 | break; |
| 1063 | } |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1064 | audio->map_v_read = msm_subsystem_map_buffer( |
| 1065 | audio->read_phys, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1066 | config.buffer_size * |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1067 | config.buffer_count, |
| 1068 | MSM_SUBSYSTEM_MAP_KADDR |
| 1069 | , NULL, 0); |
| 1070 | if (IS_ERR(audio->map_v_read)) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1071 | MM_ERR("read buf alloc fail\n"); |
| 1072 | rc = -ENOMEM; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1073 | free_contiguous_memory_by_paddr( |
| 1074 | audio->read_phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1075 | } else { |
| 1076 | uint8_t index; |
| 1077 | uint32_t offset = 0; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1078 | audio->read_data = |
| 1079 | audio->map_v_read->vaddr; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1080 | audio->buf_refresh = 0; |
| 1081 | audio->pcm_buf_count = |
| 1082 | config.buffer_count; |
| 1083 | audio->read_next = 0; |
| 1084 | audio->fill_next = 0; |
| 1085 | |
| 1086 | for (index = 0; |
| 1087 | index < config.buffer_count; |
| 1088 | index++) { |
| 1089 | audio->in[index].data = |
| 1090 | audio->read_data + offset; |
| 1091 | audio->in[index].addr = |
| 1092 | audio->read_phys + offset; |
| 1093 | audio->in[index].size = |
| 1094 | config.buffer_size; |
| 1095 | audio->in[index].used = 0; |
| 1096 | offset += config.buffer_size; |
| 1097 | } |
| 1098 | MM_DBG("read buf: phy addr \ |
| 1099 | 0x%08x kernel addr 0x%08x\n", |
| 1100 | audio->read_phys, |
| 1101 | (int)audio->read_data); |
| 1102 | rc = 0; |
| 1103 | } |
| 1104 | } else { |
| 1105 | rc = 0; |
| 1106 | } |
| 1107 | break; |
| 1108 | } |
| 1109 | case AUDIO_PAUSE: |
| 1110 | MM_DBG("AUDIO_PAUSE %ld\n", arg); |
| 1111 | rc = audpp_pause(audio->dec_id, (int) arg); |
| 1112 | break; |
| 1113 | case AUDIO_GET_SESSION_ID: |
| 1114 | if (copy_to_user((void *) arg, &audio->dec_id, |
| 1115 | sizeof(unsigned short))) |
| 1116 | rc = -EFAULT; |
| 1117 | else |
| 1118 | rc = 0; |
| 1119 | break; |
| 1120 | default: |
| 1121 | rc = -EINVAL; |
| 1122 | } |
| 1123 | mutex_unlock(&audio->lock); |
| 1124 | return rc; |
| 1125 | } |
| 1126 | |
| 1127 | /* Only useful in tunnel-mode */ |
| 1128 | static int audio_fsync(struct file *file, int datasync) |
| 1129 | { |
| 1130 | struct audio *audio = file->private_data; |
| 1131 | struct buffer *frame; |
| 1132 | int rc = 0; |
| 1133 | |
| 1134 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1135 | |
| 1136 | if (!audio->running || audio->pcm_feedback) { |
| 1137 | rc = -EINVAL; |
| 1138 | goto done_nolock; |
| 1139 | } |
| 1140 | |
| 1141 | mutex_lock(&audio->write_lock); |
| 1142 | |
| 1143 | rc = wait_event_interruptible(audio->write_wait, |
| 1144 | (!audio->out[0].used && |
| 1145 | !audio->out[1].used && |
| 1146 | audio->out_needed) || audio->wflush); |
| 1147 | |
| 1148 | if (rc < 0) |
| 1149 | goto done; |
| 1150 | else if (audio->wflush) { |
| 1151 | rc = -EBUSY; |
| 1152 | goto done; |
| 1153 | } |
| 1154 | |
| 1155 | if (audio->reserved) { |
| 1156 | MM_DBG("send reserved byte\n"); |
| 1157 | frame = audio->out + audio->out_tail; |
| 1158 | ((char *) frame->data)[0] = audio->rsv_byte; |
| 1159 | ((char *) frame->data)[1] = 0; |
| 1160 | frame->used = 2; |
| 1161 | audplay_send_data(audio, 0); |
| 1162 | |
| 1163 | rc = wait_event_interruptible(audio->write_wait, |
| 1164 | (!audio->out[0].used && |
| 1165 | !audio->out[1].used && |
| 1166 | audio->out_needed) || audio->wflush); |
| 1167 | |
| 1168 | if (rc < 0) |
| 1169 | goto done; |
| 1170 | else if (audio->wflush) { |
| 1171 | rc = -EBUSY; |
| 1172 | goto done; |
| 1173 | } |
| 1174 | } |
| 1175 | |
| 1176 | /* pcm dmamiss message is sent continously |
| 1177 | * when decoder is starved so no race |
| 1178 | * condition concern |
| 1179 | */ |
| 1180 | audio->teos = 0; |
| 1181 | |
| 1182 | rc = wait_event_interruptible(audio->write_wait, |
| 1183 | audio->teos || audio->wflush); |
| 1184 | |
| 1185 | if (audio->wflush) |
| 1186 | rc = -EBUSY; |
| 1187 | |
| 1188 | done: |
| 1189 | mutex_unlock(&audio->write_lock); |
| 1190 | done_nolock: |
| 1191 | return rc; |
| 1192 | } |
| 1193 | |
| 1194 | static ssize_t audio_read(struct file *file, char __user *buf, size_t count, |
| 1195 | loff_t *pos) |
| 1196 | { |
| 1197 | struct audio *audio = file->private_data; |
| 1198 | const char __user *start = buf; |
| 1199 | int rc = 0; |
| 1200 | |
| 1201 | if (!audio->pcm_feedback) |
| 1202 | return 0; /* PCM feedback is not enabled. Nothing to read */ |
| 1203 | |
| 1204 | mutex_lock(&audio->read_lock); |
| 1205 | MM_DBG("%d \n", count); |
| 1206 | while (count > 0) { |
| 1207 | rc = wait_event_interruptible(audio->read_wait, |
| 1208 | (audio->in[audio->read_next].used > 0) || |
| 1209 | (audio->stopped) || (audio->rflush)); |
| 1210 | |
| 1211 | if (rc < 0) |
| 1212 | break; |
| 1213 | |
| 1214 | if (audio->stopped || audio->rflush) { |
| 1215 | rc = -EBUSY; |
| 1216 | break; |
| 1217 | } |
| 1218 | |
| 1219 | if (count < audio->in[audio->read_next].used) { |
| 1220 | /* Read must happen in frame boundary. Since driver |
| 1221 | does not know frame size, read count must be greater |
| 1222 | or equal to size of PCM samples */ |
| 1223 | MM_DBG("audio_read: no partial frame done reading\n"); |
| 1224 | break; |
| 1225 | } else { |
| 1226 | MM_DBG("audio_read: read from in[%d]\n", |
| 1227 | audio->read_next); |
| 1228 | if (copy_to_user |
| 1229 | (buf, audio->in[audio->read_next].data, |
| 1230 | audio->in[audio->read_next].used)) { |
| 1231 | MM_ERR("invalid addr %x \n", (unsigned int)buf); |
| 1232 | rc = -EFAULT; |
| 1233 | break; |
| 1234 | } |
| 1235 | count -= audio->in[audio->read_next].used; |
| 1236 | buf += audio->in[audio->read_next].used; |
| 1237 | audio->in[audio->read_next].used = 0; |
| 1238 | if ((++audio->read_next) == audio->pcm_buf_count) |
| 1239 | audio->read_next = 0; |
| 1240 | break; /* Force to exit while loop |
| 1241 | * to prevent output thread |
| 1242 | * sleep too long if data is |
| 1243 | * not ready at this moment. |
| 1244 | */ |
| 1245 | } |
| 1246 | } |
| 1247 | |
| 1248 | /* don't feed output buffer to HW decoder during flushing |
| 1249 | * buffer refresh command will be sent once flush completes |
| 1250 | * send buf refresh command here can confuse HW decoder |
| 1251 | */ |
| 1252 | if (audio->buf_refresh && !audio->rflush) { |
| 1253 | audio->buf_refresh = 0; |
| 1254 | MM_DBG("kick start pcm feedback again\n"); |
| 1255 | audplay_buffer_refresh(audio); |
| 1256 | } |
| 1257 | |
| 1258 | mutex_unlock(&audio->read_lock); |
| 1259 | |
| 1260 | if (buf > start) |
| 1261 | rc = buf - start; |
| 1262 | |
| 1263 | MM_DBG("read %d bytes\n", rc); |
| 1264 | return rc; |
| 1265 | } |
| 1266 | |
| 1267 | static int audwma_process_eos(struct audio *audio, |
| 1268 | const char __user *buf_start, unsigned short mfield_size) |
| 1269 | { |
| 1270 | int rc = 0; |
| 1271 | struct buffer *frame; |
| 1272 | char *buf_ptr; |
| 1273 | |
| 1274 | if (audio->reserved) { |
| 1275 | MM_DBG("flush reserve byte\n"); |
| 1276 | frame = audio->out + audio->out_head; |
| 1277 | buf_ptr = frame->data; |
| 1278 | rc = wait_event_interruptible(audio->write_wait, |
| 1279 | (frame->used == 0) |
| 1280 | || (audio->stopped) |
| 1281 | || (audio->wflush)); |
| 1282 | if (rc < 0) |
| 1283 | goto done; |
| 1284 | if (audio->stopped || audio->wflush) { |
| 1285 | rc = -EBUSY; |
| 1286 | goto done; |
| 1287 | } |
| 1288 | |
| 1289 | buf_ptr[0] = audio->rsv_byte; |
| 1290 | buf_ptr[1] = 0; |
| 1291 | audio->out_head ^= 1; |
| 1292 | frame->mfield_sz = 0; |
| 1293 | frame->used = 2; |
| 1294 | audio->reserved = 0; |
| 1295 | audplay_send_data(audio, 0); |
| 1296 | } |
| 1297 | |
| 1298 | frame = audio->out + audio->out_head; |
| 1299 | |
| 1300 | rc = wait_event_interruptible(audio->write_wait, |
| 1301 | (audio->out_needed && |
| 1302 | audio->out[0].used == 0 && |
| 1303 | audio->out[1].used == 0) |
| 1304 | || (audio->stopped) |
| 1305 | || (audio->wflush)); |
| 1306 | |
| 1307 | if (rc < 0) |
| 1308 | goto done; |
| 1309 | if (audio->stopped || audio->wflush) { |
| 1310 | rc = -EBUSY; |
| 1311 | goto done; |
| 1312 | } |
| 1313 | |
| 1314 | if (copy_from_user(frame->data, buf_start, mfield_size)) { |
| 1315 | rc = -EFAULT; |
| 1316 | goto done; |
| 1317 | } |
| 1318 | |
| 1319 | frame->mfield_sz = mfield_size; |
| 1320 | audio->out_head ^= 1; |
| 1321 | frame->used = mfield_size; |
| 1322 | audplay_send_data(audio, 0); |
| 1323 | done: |
| 1324 | return rc; |
| 1325 | } |
| 1326 | |
| 1327 | static ssize_t audio_write(struct file *file, const char __user *buf, |
| 1328 | size_t count, loff_t *pos) |
| 1329 | { |
| 1330 | struct audio *audio = file->private_data; |
| 1331 | const char __user *start = buf; |
| 1332 | struct buffer *frame; |
| 1333 | size_t xfer; |
| 1334 | char *cpy_ptr; |
| 1335 | int rc = 0, eos_condition = AUDWMA_EOS_NONE; |
| 1336 | unsigned dsize; |
| 1337 | unsigned short mfield_size = 0; |
| 1338 | |
| 1339 | MM_DBG("cnt=%d\n", count); |
| 1340 | |
| 1341 | mutex_lock(&audio->write_lock); |
| 1342 | while (count > 0) { |
| 1343 | frame = audio->out + audio->out_head; |
| 1344 | cpy_ptr = frame->data; |
| 1345 | dsize = 0; |
| 1346 | rc = wait_event_interruptible(audio->write_wait, |
| 1347 | (frame->used == 0) |
| 1348 | || (audio->stopped) |
| 1349 | || (audio->wflush)); |
| 1350 | if (rc < 0) |
| 1351 | break; |
| 1352 | if (audio->stopped || audio->wflush) { |
| 1353 | rc = -EBUSY; |
| 1354 | break; |
| 1355 | } |
| 1356 | if (audio->mfield) { |
| 1357 | if (buf == start) { |
| 1358 | /* Processing beginning of user buffer */ |
| 1359 | if (__get_user(mfield_size, |
| 1360 | (unsigned short __user *) buf)) { |
| 1361 | rc = -EFAULT; |
| 1362 | break; |
| 1363 | } else if (mfield_size > count) { |
| 1364 | rc = -EINVAL; |
| 1365 | break; |
| 1366 | } |
| 1367 | MM_DBG("audio_write: mf offset_val %x\n", |
| 1368 | mfield_size); |
| 1369 | if (copy_from_user(cpy_ptr, buf, mfield_size)) { |
| 1370 | rc = -EFAULT; |
| 1371 | break; |
| 1372 | } |
| 1373 | /* Check if EOS flag is set and buffer has |
| 1374 | * contains just meta field |
| 1375 | */ |
| 1376 | if (cpy_ptr[AUDWMA_EOS_FLG_OFFSET] & |
| 1377 | AUDWMA_EOS_FLG_MASK) { |
| 1378 | MM_DBG("audio_write: EOS SET\n"); |
| 1379 | eos_condition = AUDWMA_EOS_SET; |
| 1380 | if (mfield_size == count) { |
| 1381 | buf += mfield_size; |
| 1382 | break; |
| 1383 | } else |
| 1384 | cpy_ptr[AUDWMA_EOS_FLG_OFFSET] |
| 1385 | &= ~AUDWMA_EOS_FLG_MASK; |
| 1386 | } |
| 1387 | cpy_ptr += mfield_size; |
| 1388 | count -= mfield_size; |
| 1389 | dsize += mfield_size; |
| 1390 | buf += mfield_size; |
| 1391 | } else { |
| 1392 | mfield_size = 0; |
| 1393 | MM_DBG("audio_write: continuous buffer\n"); |
| 1394 | } |
| 1395 | frame->mfield_sz = mfield_size; |
| 1396 | } |
| 1397 | |
| 1398 | if (audio->reserved) { |
| 1399 | MM_DBG("append reserved byte %x\n", audio->rsv_byte); |
| 1400 | *cpy_ptr = audio->rsv_byte; |
| 1401 | xfer = (count > ((frame->size - mfield_size) - 1)) ? |
| 1402 | (frame->size - mfield_size) - 1 : count; |
| 1403 | cpy_ptr++; |
| 1404 | dsize += 1; |
| 1405 | audio->reserved = 0; |
| 1406 | } else |
| 1407 | xfer = (count > (frame->size - mfield_size)) ? |
| 1408 | (frame->size - mfield_size) : count; |
| 1409 | |
| 1410 | if (copy_from_user(cpy_ptr, buf, xfer)) { |
| 1411 | rc = -EFAULT; |
| 1412 | break; |
| 1413 | } |
| 1414 | |
| 1415 | dsize += xfer; |
| 1416 | if (dsize & 1) { |
| 1417 | audio->rsv_byte = ((char *) frame->data)[dsize - 1]; |
| 1418 | MM_DBG("odd length buf reserve last byte %x\n", |
| 1419 | audio->rsv_byte); |
| 1420 | audio->reserved = 1; |
| 1421 | dsize--; |
| 1422 | } |
| 1423 | count -= xfer; |
| 1424 | buf += xfer; |
| 1425 | |
| 1426 | if (dsize > 0) { |
| 1427 | audio->out_head ^= 1; |
| 1428 | frame->used = dsize; |
| 1429 | audplay_send_data(audio, 0); |
| 1430 | } |
| 1431 | } |
| 1432 | if (eos_condition == AUDWMA_EOS_SET) |
| 1433 | rc = audwma_process_eos(audio, start, mfield_size); |
| 1434 | mutex_unlock(&audio->write_lock); |
| 1435 | if (!rc) { |
| 1436 | if (buf > start) |
| 1437 | return buf - start; |
| 1438 | } |
| 1439 | return rc; |
| 1440 | } |
| 1441 | |
| 1442 | static int audio_release(struct inode *inode, struct file *file) |
| 1443 | { |
| 1444 | struct audio *audio = file->private_data; |
| 1445 | |
| 1446 | MM_INFO("audio instance 0x%08x freeing\n", (int)audio); |
| 1447 | mutex_lock(&audio->lock); |
| 1448 | auddev_unregister_evt_listner(AUDDEV_CLNT_DEC, audio->dec_id); |
| 1449 | audio_disable(audio); |
| 1450 | audio_flush(audio); |
| 1451 | audio_flush_pcm_buf(audio); |
| 1452 | msm_adsp_put(audio->audplay); |
| 1453 | audpp_adec_free(audio->dec_id); |
| 1454 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 1455 | unregister_early_suspend(&audio->suspend_ctl.node); |
| 1456 | #endif |
| 1457 | audio->event_abort = 1; |
| 1458 | wake_up(&audio->event_wait); |
| 1459 | audwma_reset_event_queue(audio); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1460 | msm_subsystem_unmap_buffer(audio->map_v_write); |
| 1461 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1462 | if (audio->read_data) { |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1463 | msm_subsystem_unmap_buffer(audio->map_v_read); |
| 1464 | free_contiguous_memory_by_paddr(audio->read_phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1465 | } |
| 1466 | mutex_unlock(&audio->lock); |
| 1467 | #ifdef CONFIG_DEBUG_FS |
| 1468 | if (audio->dentry) |
| 1469 | debugfs_remove(audio->dentry); |
| 1470 | #endif |
| 1471 | kfree(audio); |
| 1472 | return 0; |
| 1473 | } |
| 1474 | |
| 1475 | static void audwma_post_event(struct audio *audio, int type, |
| 1476 | union msm_audio_event_payload payload) |
| 1477 | { |
| 1478 | struct audwma_event *e_node = NULL; |
| 1479 | unsigned long flags; |
| 1480 | |
| 1481 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 1482 | |
| 1483 | if (!list_empty(&audio->free_event_queue)) { |
| 1484 | e_node = list_first_entry(&audio->free_event_queue, |
| 1485 | struct audwma_event, list); |
| 1486 | list_del(&e_node->list); |
| 1487 | } else { |
| 1488 | e_node = kmalloc(sizeof(struct audwma_event), GFP_ATOMIC); |
| 1489 | if (!e_node) { |
| 1490 | MM_ERR("No mem to post event %d\n", type); |
| 1491 | return; |
| 1492 | } |
| 1493 | } |
| 1494 | |
| 1495 | e_node->event_type = type; |
| 1496 | e_node->payload = payload; |
| 1497 | |
| 1498 | list_add_tail(&e_node->list, &audio->event_queue); |
| 1499 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 1500 | wake_up(&audio->event_wait); |
| 1501 | } |
| 1502 | |
| 1503 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 1504 | static void audwma_suspend(struct early_suspend *h) |
| 1505 | { |
| 1506 | struct audwma_suspend_ctl *ctl = |
| 1507 | container_of(h, struct audwma_suspend_ctl, node); |
| 1508 | union msm_audio_event_payload payload; |
| 1509 | |
| 1510 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1511 | audwma_post_event(ctl->audio, AUDIO_EVENT_SUSPEND, payload); |
| 1512 | } |
| 1513 | |
| 1514 | static void audwma_resume(struct early_suspend *h) |
| 1515 | { |
| 1516 | struct audwma_suspend_ctl *ctl = |
| 1517 | container_of(h, struct audwma_suspend_ctl, node); |
| 1518 | union msm_audio_event_payload payload; |
| 1519 | |
| 1520 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1521 | audwma_post_event(ctl->audio, AUDIO_EVENT_RESUME, payload); |
| 1522 | } |
| 1523 | #endif |
| 1524 | |
| 1525 | #ifdef CONFIG_DEBUG_FS |
| 1526 | static ssize_t audwma_debug_open(struct inode *inode, struct file *file) |
| 1527 | { |
| 1528 | file->private_data = inode->i_private; |
| 1529 | return 0; |
| 1530 | } |
| 1531 | |
| 1532 | static ssize_t audwma_debug_read(struct file *file, char __user *buf, |
| 1533 | size_t count, loff_t *ppos) |
| 1534 | { |
| 1535 | const int debug_bufmax = 4096; |
| 1536 | static char buffer[4096]; |
| 1537 | int n = 0, i; |
| 1538 | struct audio *audio = file->private_data; |
| 1539 | |
| 1540 | mutex_lock(&audio->lock); |
| 1541 | n = scnprintf(buffer, debug_bufmax, "opened %d\n", audio->opened); |
| 1542 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1543 | "enabled %d\n", audio->enabled); |
| 1544 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1545 | "stopped %d\n", audio->stopped); |
| 1546 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1547 | "pcm_feedback %d\n", audio->pcm_feedback); |
| 1548 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1549 | "out_buf_sz %d\n", audio->out[0].size); |
| 1550 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1551 | "pcm_buf_count %d \n", audio->pcm_buf_count); |
| 1552 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1553 | "pcm_buf_sz %d \n", audio->in[0].size); |
| 1554 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1555 | "volume %x \n", audio->vol_pan.volume); |
| 1556 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1557 | "sample rate %d \n", audio->out_sample_rate); |
| 1558 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1559 | "channel mode %d \n", audio->out_channel_mode); |
| 1560 | mutex_unlock(&audio->lock); |
| 1561 | /* Following variables are only useful for debugging when |
| 1562 | * when playback halts unexpectedly. Thus, no mutual exclusion |
| 1563 | * enforced |
| 1564 | */ |
| 1565 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1566 | "wflush %d\n", audio->wflush); |
| 1567 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1568 | "rflush %d\n", audio->rflush); |
| 1569 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1570 | "running %d \n", audio->running); |
| 1571 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1572 | "dec state %d \n", audio->dec_state); |
| 1573 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1574 | "out_needed %d \n", audio->out_needed); |
| 1575 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1576 | "out_head %d \n", audio->out_head); |
| 1577 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1578 | "out_tail %d \n", audio->out_tail); |
| 1579 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1580 | "out[0].used %d \n", audio->out[0].used); |
| 1581 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1582 | "out[1].used %d \n", audio->out[1].used); |
| 1583 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1584 | "buffer_refresh %d \n", audio->buf_refresh); |
| 1585 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1586 | "read_next %d \n", audio->read_next); |
| 1587 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1588 | "fill_next %d \n", audio->fill_next); |
| 1589 | for (i = 0; i < audio->pcm_buf_count; i++) |
| 1590 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1591 | "in[%d].size %d \n", i, audio->in[i].used); |
| 1592 | buffer[n] = 0; |
| 1593 | return simple_read_from_buffer(buf, count, ppos, buffer, n); |
| 1594 | } |
| 1595 | |
| 1596 | static const struct file_operations audwma_debug_fops = { |
| 1597 | .read = audwma_debug_read, |
| 1598 | .open = audwma_debug_open, |
| 1599 | }; |
| 1600 | #endif |
| 1601 | |
| 1602 | static int audio_open(struct inode *inode, struct file *file) |
| 1603 | { |
| 1604 | struct audio *audio = NULL; |
| 1605 | int rc, dec_attrb, decid, i; |
| 1606 | unsigned pmem_sz = DMASZ_MAX; |
| 1607 | struct audwma_event *e_node = NULL; |
| 1608 | #ifdef CONFIG_DEBUG_FS |
| 1609 | /* 4 bytes represents decoder number, 1 byte for terminate string */ |
| 1610 | char name[sizeof "msm_wma_" + 5]; |
| 1611 | #endif |
| 1612 | |
| 1613 | /* Allocate Mem for audio instance */ |
| 1614 | audio = kzalloc(sizeof(struct audio), GFP_KERNEL); |
| 1615 | if (!audio) { |
| 1616 | MM_ERR("no memory to allocate audio instance \n"); |
| 1617 | rc = -ENOMEM; |
| 1618 | goto done; |
| 1619 | } |
| 1620 | MM_INFO("audio instance 0x%08x created\n", (int)audio); |
| 1621 | |
| 1622 | /* Allocate the decoder */ |
| 1623 | dec_attrb = AUDDEC_DEC_WMA; |
| 1624 | if ((file->f_mode & FMODE_WRITE) && |
| 1625 | (file->f_mode & FMODE_READ)) { |
| 1626 | dec_attrb |= MSM_AUD_MODE_NONTUNNEL; |
| 1627 | audio->pcm_feedback = NON_TUNNEL_MODE_PLAYBACK; |
| 1628 | } else if ((file->f_mode & FMODE_WRITE) && |
| 1629 | !(file->f_mode & FMODE_READ)) { |
| 1630 | dec_attrb |= MSM_AUD_MODE_TUNNEL; |
| 1631 | audio->pcm_feedback = TUNNEL_MODE_PLAYBACK; |
| 1632 | } else { |
| 1633 | kfree(audio); |
| 1634 | rc = -EACCES; |
| 1635 | goto done; |
| 1636 | } |
| 1637 | |
| 1638 | decid = audpp_adec_alloc(dec_attrb, &audio->module_name, |
| 1639 | &audio->queue_id); |
| 1640 | |
| 1641 | if (decid < 0) { |
| 1642 | MM_ERR("No free decoder available, freeing instance 0x%08x\n", |
| 1643 | (int)audio); |
| 1644 | rc = -ENODEV; |
| 1645 | kfree(audio); |
| 1646 | goto done; |
| 1647 | } |
| 1648 | audio->dec_id = decid & MSM_AUD_DECODER_MASK; |
| 1649 | |
| 1650 | while (pmem_sz >= DMASZ_MIN) { |
| 1651 | MM_DBG("pmemsz = %d\n", pmem_sz); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1652 | audio->phys = allocate_contiguous_ebi_nomap(pmem_sz, SZ_4K); |
| 1653 | if (audio->phys) { |
| 1654 | audio->map_v_write = msm_subsystem_map_buffer( |
| 1655 | audio->phys, pmem_sz, |
| 1656 | MSM_SUBSYSTEM_MAP_KADDR, |
| 1657 | NULL, 0); |
| 1658 | if (IS_ERR(audio->map_v_write)) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1659 | MM_ERR("could not allocate write buffers, \ |
| 1660 | freeing instance 0x%08x\n", |
| 1661 | (int)audio); |
| 1662 | rc = -ENOMEM; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1663 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1664 | audpp_adec_free(audio->dec_id); |
| 1665 | kfree(audio); |
| 1666 | goto done; |
| 1667 | } |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1668 | audio->data = audio->map_v_write->vaddr; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1669 | MM_DBG("write buf: phy addr 0x%08x kernel addr \ |
| 1670 | 0x%08x\n", audio->phys, (int)audio->data); |
| 1671 | break; |
| 1672 | } else if (pmem_sz == DMASZ_MIN) { |
| 1673 | MM_ERR("could not allocate write buffers, freeing \ |
| 1674 | instance 0x%08x\n", (int)audio); |
| 1675 | rc = -ENOMEM; |
| 1676 | audpp_adec_free(audio->dec_id); |
| 1677 | kfree(audio); |
| 1678 | goto done; |
| 1679 | } else |
| 1680 | pmem_sz >>= 1; |
| 1681 | } |
| 1682 | audio->out_dma_sz = pmem_sz; |
| 1683 | |
| 1684 | rc = msm_adsp_get(audio->module_name, &audio->audplay, |
| 1685 | &audplay_adsp_ops_wma, audio); |
| 1686 | if (rc) { |
| 1687 | MM_ERR("failed to get %s module, freeing instance 0x%08x\n", |
| 1688 | audio->module_name, (int)audio); |
| 1689 | goto err; |
| 1690 | } |
| 1691 | |
| 1692 | mutex_init(&audio->lock); |
| 1693 | mutex_init(&audio->write_lock); |
| 1694 | mutex_init(&audio->read_lock); |
| 1695 | mutex_init(&audio->get_event_lock); |
| 1696 | spin_lock_init(&audio->dsp_lock); |
| 1697 | init_waitqueue_head(&audio->write_wait); |
| 1698 | init_waitqueue_head(&audio->read_wait); |
| 1699 | INIT_LIST_HEAD(&audio->free_event_queue); |
| 1700 | INIT_LIST_HEAD(&audio->event_queue); |
| 1701 | init_waitqueue_head(&audio->wait); |
| 1702 | init_waitqueue_head(&audio->event_wait); |
| 1703 | spin_lock_init(&audio->event_queue_lock); |
| 1704 | init_waitqueue_head(&audio->avsync_wait); |
| 1705 | |
| 1706 | audio->out[0].data = audio->data + 0; |
| 1707 | audio->out[0].addr = audio->phys + 0; |
| 1708 | audio->out[0].size = audio->out_dma_sz >> 1; |
| 1709 | |
| 1710 | audio->out[1].data = audio->data + audio->out[0].size; |
| 1711 | audio->out[1].addr = audio->phys + audio->out[0].size; |
| 1712 | audio->out[1].size = audio->out[0].size; |
| 1713 | |
| 1714 | audio->wma_config.armdatareqthr = 1262; |
| 1715 | audio->wma_config.channelsdecoded = 2; |
| 1716 | audio->wma_config.wmabytespersec = 6003; |
| 1717 | audio->wma_config.wmasamplingfreq = 44100; |
| 1718 | audio->wma_config.wmaencoderopts = 31; |
| 1719 | |
| 1720 | audio->out_sample_rate = 44100; |
| 1721 | audio->out_channel_mode = AUDPP_CMD_PCM_INTF_STEREO_V; |
| 1722 | |
| 1723 | audio->vol_pan.volume = 0x2000; |
| 1724 | |
| 1725 | audio_flush(audio); |
| 1726 | |
| 1727 | file->private_data = audio; |
| 1728 | audio->opened = 1; |
| 1729 | |
| 1730 | audio->device_events = AUDDEV_EVT_DEV_RDY |
| 1731 | |AUDDEV_EVT_DEV_RLS| |
| 1732 | AUDDEV_EVT_STREAM_VOL_CHG; |
| 1733 | |
| 1734 | rc = auddev_register_evt_listner(audio->device_events, |
| 1735 | AUDDEV_CLNT_DEC, |
| 1736 | audio->dec_id, |
| 1737 | wma_listner, |
| 1738 | (void *)audio); |
| 1739 | if (rc) { |
| 1740 | MM_ERR("%s: failed to register listner\n", __func__); |
| 1741 | goto event_err; |
| 1742 | } |
| 1743 | |
| 1744 | #ifdef CONFIG_DEBUG_FS |
| 1745 | snprintf(name, sizeof name, "msm_wma_%04x", audio->dec_id); |
| 1746 | audio->dentry = debugfs_create_file(name, S_IFREG | S_IRUGO, |
| 1747 | NULL, (void *) audio, |
| 1748 | &audwma_debug_fops); |
| 1749 | |
| 1750 | if (IS_ERR(audio->dentry)) |
| 1751 | MM_DBG("debugfs_create_file failed\n"); |
| 1752 | #endif |
| 1753 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 1754 | audio->suspend_ctl.node.level = EARLY_SUSPEND_LEVEL_DISABLE_FB; |
| 1755 | audio->suspend_ctl.node.resume = audwma_resume; |
| 1756 | audio->suspend_ctl.node.suspend = audwma_suspend; |
| 1757 | audio->suspend_ctl.audio = audio; |
| 1758 | register_early_suspend(&audio->suspend_ctl.node); |
| 1759 | #endif |
| 1760 | for (i = 0; i < AUDWMA_EVENT_NUM; i++) { |
| 1761 | e_node = kmalloc(sizeof(struct audwma_event), GFP_KERNEL); |
| 1762 | if (e_node) |
| 1763 | list_add_tail(&e_node->list, &audio->free_event_queue); |
| 1764 | else { |
| 1765 | MM_ERR("event pkt alloc failed\n"); |
| 1766 | break; |
| 1767 | } |
| 1768 | } |
| 1769 | done: |
| 1770 | return rc; |
| 1771 | event_err: |
| 1772 | msm_adsp_put(audio->audplay); |
| 1773 | err: |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1774 | msm_subsystem_unmap_buffer(audio->map_v_write); |
| 1775 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1776 | audpp_adec_free(audio->dec_id); |
| 1777 | kfree(audio); |
| 1778 | return rc; |
| 1779 | } |
| 1780 | |
| 1781 | static const struct file_operations audio_wma_fops = { |
| 1782 | .owner = THIS_MODULE, |
| 1783 | .open = audio_open, |
| 1784 | .release = audio_release, |
| 1785 | .read = audio_read, |
| 1786 | .write = audio_write, |
| 1787 | .unlocked_ioctl = audio_ioctl, |
| 1788 | .fsync = audio_fsync, |
| 1789 | }; |
| 1790 | |
| 1791 | struct miscdevice audio_wma_misc = { |
| 1792 | .minor = MISC_DYNAMIC_MINOR, |
| 1793 | .name = "msm_wma", |
| 1794 | .fops = &audio_wma_fops, |
| 1795 | }; |
| 1796 | |
| 1797 | static int __init audio_init(void) |
| 1798 | { |
| 1799 | return misc_register(&audio_wma_misc); |
| 1800 | } |
| 1801 | |
| 1802 | device_initcall(audio_init); |