Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1 | /* |
Duy Truong | 790f06d | 2013-02-13 16:38:12 -0800 | [diff] [blame] | 2 | * Copyright (c) 2008-2012, The Linux Foundation. All rights reserved. |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 3 | * |
| 4 | * This code also borrows from audio_aac.c, which is |
| 5 | * Copyright (C) 2008 Google, Inc. |
| 6 | * Copyright (C) 2008 HTC Corporation |
| 7 | * |
| 8 | * This software is licensed under the terms of the GNU General Public |
| 9 | * License version 2, as published by the Free Software Foundation, and |
| 10 | * may be copied, distributed, and modified under those terms. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 15 | * |
| 16 | * See the GNU General Public License for more details. |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, you can find it at http://www.fsf.org. |
| 19 | */ |
| 20 | |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 21 | #include <asm/atomic.h> |
| 22 | #include <asm/ioctls.h> |
| 23 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 24 | #include <linux/module.h> |
| 25 | #include <linux/fs.h> |
| 26 | #include <linux/miscdevice.h> |
| 27 | #include <linux/uaccess.h> |
| 28 | #include <linux/kthread.h> |
| 29 | #include <linux/wait.h> |
| 30 | #include <linux/dma-mapping.h> |
| 31 | #include <linux/debugfs.h> |
| 32 | #include <linux/delay.h> |
| 33 | #include <linux/list.h> |
| 34 | #include <linux/earlysuspend.h> |
| 35 | #include <linux/android_pmem.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 36 | #include <linux/memory_alloc.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 37 | #include <linux/msm_audio.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 38 | #include <linux/slab.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 39 | |
| 40 | #include <mach/msm_adsp.h> |
| 41 | #include <mach/iommu.h> |
| 42 | #include <mach/iommu_domains.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 43 | #include <mach/qdsp5v2/audio_dev_ctl.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 44 | #include <mach/qdsp5v2/qdsp5audppmsg.h> |
| 45 | #include <mach/qdsp5v2/qdsp5audplaycmdi.h> |
| 46 | #include <mach/qdsp5v2/qdsp5audplaymsg.h> |
| 47 | #include <mach/qdsp5v2/audio_dev_ctl.h> |
| 48 | #include <mach/qdsp5v2/audpp.h> |
| 49 | #include <mach/debug_mm.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 50 | #include <mach/msm_memtypes.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 51 | |
| 52 | /* Hold 30 packets of 24 bytes each and 14 bytes of meta in */ |
| 53 | #define BUFSZ 734 |
| 54 | #define DMASZ (BUFSZ * 2) |
| 55 | |
| 56 | #define AUDDEC_DEC_EVRC 12 |
| 57 | |
| 58 | #define PCM_BUFSZ_MIN 1624 /* 100ms worth of data and |
| 59 | and 24 bytes of meta out */ |
| 60 | #define PCM_BUF_MAX_COUNT 5 |
| 61 | /* DSP only accepts 5 buffers at most |
| 62 | * but support 2 buffers currently |
| 63 | */ |
| 64 | #define EVRC_DECODED_FRSZ 320 /* EVRC 20ms 8KHz mono PCM size */ |
| 65 | |
| 66 | #define ROUTING_MODE_FTRT 1 |
| 67 | #define ROUTING_MODE_RT 2 |
| 68 | /* Decoder status received from AUDPPTASK */ |
| 69 | #define AUDPP_DEC_STATUS_SLEEP 0 |
| 70 | #define AUDPP_DEC_STATUS_INIT 1 |
| 71 | #define AUDPP_DEC_STATUS_CFG 2 |
| 72 | #define AUDPP_DEC_STATUS_PLAY 3 |
| 73 | |
| 74 | #define AUDEVRC_METAFIELD_MASK 0xFFFF0000 |
| 75 | #define AUDEVRC_EOS_FLG_OFFSET 0x0A /* Offset from beginning of buffer */ |
| 76 | #define AUDEVRC_EOS_FLG_MASK 0x01 |
| 77 | #define AUDEVRC_EOS_NONE 0x0 /* No EOS detected */ |
| 78 | #define AUDEVRC_EOS_SET 0x1 /* EOS set in meta field */ |
| 79 | |
| 80 | #define AUDEVRC_EVENT_NUM 10 /* Default number of pre-allocated event packets */ |
| 81 | |
| 82 | struct buffer { |
| 83 | void *data; |
| 84 | unsigned size; |
| 85 | unsigned used; /* Input usage actual DSP produced PCM size */ |
| 86 | unsigned addr; |
| 87 | unsigned short mfield_sz; /*only useful for data has meta field */ |
| 88 | }; |
| 89 | |
| 90 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 91 | struct audevrc_suspend_ctl { |
| 92 | struct early_suspend node; |
| 93 | struct audio *audio; |
| 94 | }; |
| 95 | #endif |
| 96 | |
| 97 | struct audevrc_event{ |
| 98 | struct list_head list; |
| 99 | int event_type; |
| 100 | union msm_audio_event_payload payload; |
| 101 | }; |
| 102 | |
| 103 | struct audio { |
| 104 | struct buffer out[2]; |
| 105 | |
| 106 | spinlock_t dsp_lock; |
| 107 | |
| 108 | uint8_t out_head; |
| 109 | uint8_t out_tail; |
| 110 | uint8_t out_needed; /* number of buffers the dsp is waiting for */ |
| 111 | |
| 112 | atomic_t out_bytes; |
| 113 | |
| 114 | struct mutex lock; |
| 115 | struct mutex write_lock; |
| 116 | wait_queue_head_t write_wait; |
| 117 | |
| 118 | /* Host PCM section */ |
| 119 | struct buffer in[PCM_BUF_MAX_COUNT]; |
| 120 | struct mutex read_lock; |
| 121 | wait_queue_head_t read_wait; /* Wait queue for read */ |
| 122 | char *read_data; /* pointer to reader buffer */ |
| 123 | int32_t read_phys; /* physical address of reader buffer */ |
| 124 | uint8_t read_next; /* index to input buffers to be read next */ |
| 125 | uint8_t fill_next; /* index to buffer that DSP should be filling */ |
| 126 | uint8_t pcm_buf_count; /* number of pcm buffer allocated */ |
| 127 | /* ---- End of Host PCM section */ |
| 128 | |
| 129 | struct msm_adsp_module *audplay; |
| 130 | |
| 131 | /* data allocated for various buffers */ |
| 132 | char *data; |
| 133 | int32_t phys; /* physical address of write buffer */ |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 134 | void *map_v_read; |
| 135 | void *map_v_write; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 136 | |
| 137 | int mfield; /* meta field embedded in data */ |
| 138 | int rflush; /* Read flush */ |
| 139 | int wflush; /* Write flush */ |
| 140 | uint8_t opened:1; |
| 141 | uint8_t enabled:1; |
| 142 | uint8_t running:1; |
| 143 | uint8_t stopped:1; /* set when stopped, cleared on flush */ |
| 144 | uint8_t pcm_feedback:1; |
| 145 | uint8_t buf_refresh:1; |
| 146 | int teos; /* valid only if tunnel mode & no data left for decoder */ |
| 147 | enum msm_aud_decoder_state dec_state; /* Represents decoder state */ |
| 148 | |
| 149 | const char *module_name; |
| 150 | unsigned queue_id; |
| 151 | uint16_t dec_id; |
| 152 | uint32_t read_ptr_offset; |
| 153 | int16_t source; |
| 154 | |
| 155 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 156 | struct audevrc_suspend_ctl suspend_ctl; |
| 157 | #endif |
| 158 | |
| 159 | #ifdef CONFIG_DEBUG_FS |
| 160 | struct dentry *dentry; |
| 161 | #endif |
| 162 | |
| 163 | wait_queue_head_t wait; |
| 164 | struct list_head free_event_queue; |
| 165 | struct list_head event_queue; |
| 166 | wait_queue_head_t event_wait; |
| 167 | spinlock_t event_queue_lock; |
| 168 | struct mutex get_event_lock; |
| 169 | int event_abort; |
| 170 | /* AV sync Info */ |
| 171 | int avsync_flag; /* Flag to indicate feedback from DSP */ |
| 172 | wait_queue_head_t avsync_wait;/* Wait queue for AV Sync Message */ |
| 173 | /* flags, 48 bits sample/bytes counter per channel */ |
| 174 | uint16_t avsync[AUDPP_AVSYNC_CH_COUNT * AUDPP_AVSYNC_NUM_WORDS + 1]; |
| 175 | |
| 176 | uint32_t device_events; |
| 177 | |
| 178 | int eq_enable; |
| 179 | int eq_needs_commit; |
| 180 | struct audpp_cmd_cfg_object_params_eqalizer eq; |
| 181 | struct audpp_cmd_cfg_object_params_volume vol_pan; |
| 182 | }; |
| 183 | |
| 184 | static int auddec_dsp_config(struct audio *audio, int enable); |
| 185 | static void audpp_cmd_cfg_adec_params(struct audio *audio); |
| 186 | static void audpp_cmd_cfg_routing_mode(struct audio *audio); |
| 187 | static void audevrc_send_data(struct audio *audio, unsigned needed); |
| 188 | static void audevrc_dsp_event(void *private, unsigned id, uint16_t *msg); |
| 189 | static void audevrc_config_hostpcm(struct audio *audio); |
| 190 | static void audevrc_buffer_refresh(struct audio *audio); |
Vinay Vaka | 051db72 | 2012-01-24 19:48:32 +0530 | [diff] [blame] | 191 | #ifdef CONFIG_HAS_EARLYSUSPEND |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 192 | static void audevrc_post_event(struct audio *audio, int type, |
| 193 | union msm_audio_event_payload payload); |
Vinay Vaka | 051db72 | 2012-01-24 19:48:32 +0530 | [diff] [blame] | 194 | #endif |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 195 | |
| 196 | /* must be called with audio->lock held */ |
| 197 | static int audevrc_enable(struct audio *audio) |
| 198 | { |
| 199 | if (audio->enabled) |
| 200 | return 0; |
| 201 | |
| 202 | audio->dec_state = MSM_AUD_DECODER_STATE_NONE; |
| 203 | audio->out_tail = 0; |
| 204 | audio->out_needed = 0; |
| 205 | |
| 206 | if (msm_adsp_enable(audio->audplay)) { |
| 207 | MM_ERR("msm_adsp_enable(audplay) failed\n"); |
| 208 | return -ENODEV; |
| 209 | } |
| 210 | |
| 211 | if (audpp_enable(audio->dec_id, audevrc_dsp_event, audio)) { |
| 212 | MM_ERR("audpp_enable() failed\n"); |
| 213 | msm_adsp_disable(audio->audplay); |
| 214 | return -ENODEV; |
| 215 | } |
| 216 | audio->enabled = 1; |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | static void evrc_listner(u32 evt_id, union auddev_evt_data *evt_payload, |
| 221 | void *private_data) |
| 222 | { |
| 223 | struct audio *audio = (struct audio *) private_data; |
| 224 | switch (evt_id) { |
| 225 | case AUDDEV_EVT_DEV_RDY: |
| 226 | MM_DBG(":AUDDEV_EVT_DEV_RDY\n"); |
| 227 | audio->source |= (0x1 << evt_payload->routing_id); |
| 228 | if (audio->running == 1 && audio->enabled == 1) |
| 229 | audpp_route_stream(audio->dec_id, audio->source); |
| 230 | break; |
| 231 | case AUDDEV_EVT_DEV_RLS: |
| 232 | MM_DBG(":AUDDEV_EVT_DEV_RLS\n"); |
| 233 | audio->source &= ~(0x1 << evt_payload->routing_id); |
| 234 | if (audio->running == 1 && audio->enabled == 1) |
| 235 | audpp_route_stream(audio->dec_id, audio->source); |
| 236 | break; |
| 237 | case AUDDEV_EVT_STREAM_VOL_CHG: |
| 238 | audio->vol_pan.volume = evt_payload->session_vol; |
| 239 | MM_DBG(":AUDDEV_EVT_STREAM_VOL_CHG, stream vol %d\n", |
| 240 | audio->vol_pan.volume); |
| 241 | if (audio->running) |
| 242 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 243 | POPP); |
| 244 | break; |
| 245 | default: |
| 246 | MM_ERR(":ERROR:wrong event\n"); |
| 247 | break; |
| 248 | } |
| 249 | } |
| 250 | /* must be called with audio->lock held */ |
| 251 | static int audevrc_disable(struct audio *audio) |
| 252 | { |
| 253 | int rc = 0; |
| 254 | if (audio->enabled) { |
| 255 | audio->enabled = 0; |
| 256 | audio->dec_state = MSM_AUD_DECODER_STATE_NONE; |
| 257 | auddec_dsp_config(audio, 0); |
| 258 | rc = wait_event_interruptible_timeout(audio->wait, |
| 259 | audio->dec_state != MSM_AUD_DECODER_STATE_NONE, |
| 260 | msecs_to_jiffies(MSM_AUD_DECODER_WAIT_MS)); |
| 261 | if (rc == 0) |
| 262 | rc = -ETIMEDOUT; |
| 263 | else if (audio->dec_state != MSM_AUD_DECODER_STATE_CLOSE) |
| 264 | rc = -EFAULT; |
| 265 | else |
| 266 | rc = 0; |
| 267 | wake_up(&audio->write_wait); |
| 268 | wake_up(&audio->read_wait); |
| 269 | msm_adsp_disable(audio->audplay); |
| 270 | audpp_disable(audio->dec_id, audio); |
| 271 | audio->out_needed = 0; |
| 272 | } |
| 273 | return rc; |
| 274 | } |
| 275 | |
| 276 | /* ------------------- dsp --------------------- */ |
| 277 | |
| 278 | static void audevrc_update_pcm_buf_entry(struct audio *audio, |
| 279 | uint32_t *payload) |
| 280 | { |
| 281 | uint8_t index; |
| 282 | unsigned long flags; |
| 283 | |
| 284 | if (audio->rflush) |
| 285 | return; |
| 286 | |
| 287 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 288 | for (index = 0; index < payload[1]; index++) { |
| 289 | if (audio->in[audio->fill_next].addr |
| 290 | == payload[2 + index * 2]) { |
| 291 | MM_DBG("in[%d] ready\n", audio->fill_next); |
| 292 | audio->in[audio->fill_next].used = |
| 293 | payload[3 + index * 2]; |
| 294 | if ((++audio->fill_next) == audio->pcm_buf_count) |
| 295 | audio->fill_next = 0; |
| 296 | |
| 297 | } else { |
| 298 | MM_ERR("expected=%x ret=%x\n", |
| 299 | audio->in[audio->fill_next].addr, |
| 300 | payload[1 + index * 2]); |
| 301 | break; |
| 302 | } |
| 303 | } |
| 304 | if (audio->in[audio->fill_next].used == 0) { |
| 305 | audevrc_buffer_refresh(audio); |
| 306 | } else { |
| 307 | MM_DBG("read cannot keep up\n"); |
| 308 | audio->buf_refresh = 1; |
| 309 | } |
| 310 | wake_up(&audio->read_wait); |
| 311 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 312 | } |
| 313 | |
| 314 | static void audplay_dsp_event(void *data, unsigned id, size_t len, |
| 315 | void (*getevent) (void *ptr, size_t len)) |
| 316 | { |
| 317 | struct audio *audio = data; |
| 318 | uint32_t msg[28]; |
| 319 | getevent(msg, sizeof(msg)); |
| 320 | |
| 321 | MM_DBG("msg_id=%x\n", id); |
| 322 | switch (id) { |
| 323 | case AUDPLAY_MSG_DEC_NEEDS_DATA: |
| 324 | audevrc_send_data(audio, 1); |
| 325 | break; |
| 326 | case AUDPLAY_MSG_BUFFER_UPDATE: |
| 327 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 328 | audevrc_update_pcm_buf_entry(audio, msg); |
| 329 | break; |
| 330 | case ADSP_MESSAGE_ID: |
| 331 | MM_DBG("Received ADSP event: module enable(audplaytask)\n"); |
| 332 | break; |
| 333 | default: |
| 334 | MM_ERR("unexpected message from decoder \n"); |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | static void audevrc_dsp_event(void *private, unsigned id, uint16_t *msg) |
| 339 | { |
| 340 | struct audio *audio = private; |
| 341 | |
| 342 | switch (id) { |
| 343 | case AUDPP_MSG_STATUS_MSG:{ |
| 344 | unsigned status = msg[1]; |
| 345 | |
| 346 | switch (status) { |
| 347 | case AUDPP_DEC_STATUS_SLEEP: { |
| 348 | uint16_t reason = msg[2]; |
| 349 | MM_DBG("decoder status:sleep reason = \ |
| 350 | 0x%04x\n", reason); |
| 351 | if ((reason == AUDPP_MSG_REASON_MEM) |
| 352 | || (reason == |
| 353 | AUDPP_MSG_REASON_NODECODER)) { |
| 354 | audio->dec_state = |
| 355 | MSM_AUD_DECODER_STATE_FAILURE; |
| 356 | wake_up(&audio->wait); |
| 357 | } else if (reason == AUDPP_MSG_REASON_NONE) { |
| 358 | /* decoder is in disable state */ |
| 359 | audio->dec_state = |
| 360 | MSM_AUD_DECODER_STATE_CLOSE; |
| 361 | wake_up(&audio->wait); |
| 362 | } |
| 363 | break; |
| 364 | } |
| 365 | case AUDPP_DEC_STATUS_INIT: |
| 366 | MM_DBG("decoder status: init \n"); |
| 367 | if (audio->pcm_feedback) |
| 368 | audpp_cmd_cfg_routing_mode(audio); |
| 369 | else |
| 370 | audpp_cmd_cfg_adec_params(audio); |
| 371 | break; |
| 372 | |
| 373 | case AUDPP_DEC_STATUS_CFG: |
| 374 | MM_DBG("decoder status: cfg \n"); |
| 375 | break; |
| 376 | case AUDPP_DEC_STATUS_PLAY: |
| 377 | MM_DBG("decoder status: play \n"); |
| 378 | audpp_route_stream(audio->dec_id, |
| 379 | audio->source); |
| 380 | if (audio->pcm_feedback) { |
| 381 | audevrc_config_hostpcm(audio); |
| 382 | audevrc_buffer_refresh(audio); |
| 383 | } |
| 384 | audio->dec_state = |
| 385 | MSM_AUD_DECODER_STATE_SUCCESS; |
| 386 | wake_up(&audio->wait); |
| 387 | break; |
| 388 | default: |
| 389 | MM_ERR("unknown decoder status \n"); |
| 390 | } |
| 391 | break; |
| 392 | } |
| 393 | case AUDPP_MSG_CFG_MSG: |
| 394 | if (msg[0] == AUDPP_MSG_ENA_ENA) { |
| 395 | MM_DBG("CFG_MSG ENABLE\n"); |
| 396 | auddec_dsp_config(audio, 1); |
| 397 | audio->out_needed = 0; |
| 398 | audio->running = 1; |
| 399 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 400 | POPP); |
| 401 | audpp_dsp_set_eq(audio->dec_id, audio->eq_enable, |
| 402 | &audio->eq, POPP); |
| 403 | } else if (msg[0] == AUDPP_MSG_ENA_DIS) { |
| 404 | MM_DBG("CFG_MSG DISABLE\n"); |
| 405 | audio->running = 0; |
| 406 | } else { |
| 407 | MM_DBG("CFG_MSG %d?\n", msg[0]); |
| 408 | } |
| 409 | break; |
| 410 | case AUDPP_MSG_ROUTING_ACK: |
| 411 | MM_DBG("ROUTING_ACK\n"); |
| 412 | audpp_cmd_cfg_adec_params(audio); |
| 413 | break; |
| 414 | case AUDPP_MSG_FLUSH_ACK: |
| 415 | MM_DBG("FLUSH_ACK\n"); |
| 416 | audio->wflush = 0; |
| 417 | audio->rflush = 0; |
| 418 | wake_up(&audio->write_wait); |
| 419 | if (audio->pcm_feedback) |
| 420 | audevrc_buffer_refresh(audio); |
| 421 | break; |
| 422 | case AUDPP_MSG_PCMDMAMISSED: |
| 423 | MM_DBG("PCMDMAMISSED\n"); |
| 424 | audio->teos = 1; |
| 425 | wake_up(&audio->write_wait); |
| 426 | break; |
| 427 | |
| 428 | case AUDPP_MSG_AVSYNC_MSG: |
| 429 | MM_DBG("AUDPP_MSG_AVSYNC_MSG\n"); |
| 430 | memcpy(&audio->avsync[0], msg, sizeof(audio->avsync)); |
| 431 | audio->avsync_flag = 1; |
| 432 | wake_up(&audio->avsync_wait); |
| 433 | break; |
| 434 | |
| 435 | default: |
| 436 | MM_ERR("UNKNOWN (%d)\n", id); |
| 437 | } |
| 438 | |
| 439 | } |
| 440 | |
| 441 | struct msm_adsp_ops audplay_adsp_ops_evrc = { |
| 442 | .event = audplay_dsp_event, |
| 443 | }; |
| 444 | |
| 445 | #define audplay_send_queue0(audio, cmd, len) \ |
| 446 | msm_adsp_write(audio->audplay, audio->queue_id, \ |
| 447 | cmd, len) |
| 448 | |
| 449 | static int auddec_dsp_config(struct audio *audio, int enable) |
| 450 | { |
| 451 | struct audpp_cmd_cfg_dec_type cfg_dec_cmd; |
| 452 | |
| 453 | memset(&cfg_dec_cmd, 0, sizeof(cfg_dec_cmd)); |
| 454 | |
| 455 | cfg_dec_cmd.cmd_id = AUDPP_CMD_CFG_DEC_TYPE; |
| 456 | if (enable) |
| 457 | cfg_dec_cmd.dec_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | |
| 458 | AUDPP_CMD_ENA_DEC_V | AUDDEC_DEC_EVRC; |
| 459 | else |
| 460 | cfg_dec_cmd.dec_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | |
| 461 | AUDPP_CMD_DIS_DEC_V; |
| 462 | cfg_dec_cmd.dm_mode = 0x0; |
| 463 | cfg_dec_cmd.stream_id = audio->dec_id; |
| 464 | |
| 465 | return audpp_send_queue1(&cfg_dec_cmd, sizeof(cfg_dec_cmd)); |
| 466 | } |
| 467 | |
| 468 | static void audpp_cmd_cfg_adec_params(struct audio *audio) |
| 469 | { |
| 470 | struct audpp_cmd_cfg_adec_params_evrc cmd; |
| 471 | |
| 472 | memset(&cmd, 0, sizeof(cmd)); |
| 473 | cmd.common.cmd_id = AUDPP_CMD_CFG_ADEC_PARAMS; |
| 474 | cmd.common.length = sizeof(cmd); |
| 475 | cmd.common.dec_id = audio->dec_id; |
| 476 | cmd.common.input_sampling_frequency = 8000; |
| 477 | cmd.stereo_cfg = AUDPP_CMD_PCM_INTF_MONO_V; |
| 478 | |
| 479 | audpp_send_queue2(&cmd, sizeof(cmd)); |
| 480 | } |
| 481 | |
| 482 | static void audpp_cmd_cfg_routing_mode(struct audio *audio) |
| 483 | { |
| 484 | struct audpp_cmd_routing_mode cmd; |
| 485 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 486 | memset(&cmd, 0, sizeof(cmd)); |
| 487 | cmd.cmd_id = AUDPP_CMD_ROUTING_MODE; |
| 488 | cmd.object_number = audio->dec_id; |
| 489 | if (audio->pcm_feedback) |
| 490 | cmd.routing_mode = ROUTING_MODE_FTRT; |
| 491 | else |
| 492 | cmd.routing_mode = ROUTING_MODE_RT; |
| 493 | |
| 494 | audpp_send_queue1(&cmd, sizeof(cmd)); |
| 495 | } |
| 496 | |
| 497 | static int audplay_dsp_send_data_avail(struct audio *audio, |
| 498 | unsigned idx, unsigned len) |
| 499 | { |
| 500 | struct audplay_cmd_bitstream_data_avail_nt2 cmd; |
| 501 | |
| 502 | cmd.cmd_id = AUDPLAY_CMD_BITSTREAM_DATA_AVAIL_NT2; |
| 503 | if (audio->mfield) |
| 504 | cmd.decoder_id = AUDEVRC_METAFIELD_MASK | |
| 505 | (audio->out[idx].mfield_sz >> 1); |
| 506 | else |
| 507 | cmd.decoder_id = audio->dec_id; |
| 508 | cmd.buf_ptr = audio->out[idx].addr; |
| 509 | cmd.buf_size = len / 2; |
| 510 | cmd.partition_number = 0; |
| 511 | return audplay_send_queue0(audio, &cmd, sizeof(cmd)); |
| 512 | } |
| 513 | |
| 514 | static void audevrc_buffer_refresh(struct audio *audio) |
| 515 | { |
| 516 | struct audplay_cmd_buffer_refresh refresh_cmd; |
| 517 | |
| 518 | refresh_cmd.cmd_id = AUDPLAY_CMD_BUFFER_REFRESH; |
| 519 | refresh_cmd.num_buffers = 1; |
| 520 | refresh_cmd.buf0_address = audio->in[audio->fill_next].addr; |
| 521 | refresh_cmd.buf0_length = audio->in[audio->fill_next].size; |
| 522 | |
| 523 | refresh_cmd.buf_read_count = 0; |
| 524 | MM_DBG("buf0_addr=%x buf0_len=%d\n", refresh_cmd.buf0_address, |
| 525 | refresh_cmd.buf0_length); |
| 526 | audplay_send_queue0(audio, &refresh_cmd, sizeof(refresh_cmd)); |
| 527 | } |
| 528 | |
| 529 | static void audevrc_config_hostpcm(struct audio *audio) |
| 530 | { |
| 531 | struct audplay_cmd_hpcm_buf_cfg cfg_cmd; |
| 532 | |
| 533 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 534 | cfg_cmd.cmd_id = AUDPLAY_CMD_HPCM_BUF_CFG; |
| 535 | cfg_cmd.max_buffers = 1; |
| 536 | cfg_cmd.byte_swap = 0; |
| 537 | cfg_cmd.hostpcm_config = (0x8000) | (0x4000); |
| 538 | cfg_cmd.feedback_frequency = 1; |
| 539 | cfg_cmd.partition_number = 0; |
| 540 | audplay_send_queue0(audio, &cfg_cmd, sizeof(cfg_cmd)); |
| 541 | |
| 542 | } |
| 543 | |
| 544 | static void audevrc_send_data(struct audio *audio, unsigned needed) |
| 545 | { |
| 546 | struct buffer *frame; |
| 547 | unsigned long flags; |
| 548 | |
| 549 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 550 | if (!audio->running) |
| 551 | goto done; |
| 552 | |
| 553 | if (needed && !audio->wflush) { |
| 554 | /* We were called from the callback because the DSP |
| 555 | * requested more data. Note that the DSP does want |
| 556 | * more data, and if a buffer was in-flight, mark it |
| 557 | * as available (since the DSP must now be done with |
| 558 | * it). |
| 559 | */ |
| 560 | audio->out_needed = 1; |
| 561 | frame = audio->out + audio->out_tail; |
| 562 | if (frame->used == 0xffffffff) { |
| 563 | MM_DBG("frame %d free\n", audio->out_tail); |
| 564 | frame->used = 0; |
| 565 | audio->out_tail ^= 1; |
| 566 | wake_up(&audio->write_wait); |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | if (audio->out_needed) { |
| 571 | /* If the DSP currently wants data and we have a |
| 572 | * buffer available, we will send it and reset |
| 573 | * the needed flag. We'll mark the buffer as in-flight |
| 574 | * so that it won't be recycled until the next buffer |
| 575 | * is requested |
| 576 | */ |
| 577 | |
| 578 | frame = audio->out + audio->out_tail; |
| 579 | if (frame->used) { |
| 580 | BUG_ON(frame->used == 0xffffffff); |
| 581 | MM_DBG("frame %d busy\n", audio->out_tail); |
| 582 | audplay_dsp_send_data_avail(audio, audio->out_tail, |
| 583 | frame->used); |
| 584 | frame->used = 0xffffffff; |
| 585 | audio->out_needed = 0; |
| 586 | } |
| 587 | } |
| 588 | done: |
| 589 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 590 | } |
| 591 | |
| 592 | /* ------------------- device --------------------- */ |
| 593 | |
| 594 | static void audevrc_flush(struct audio *audio) |
| 595 | { |
| 596 | audio->out[0].used = 0; |
| 597 | audio->out[1].used = 0; |
| 598 | audio->out_head = 0; |
| 599 | audio->out_tail = 0; |
| 600 | audio->out_needed = 0; |
| 601 | atomic_set(&audio->out_bytes, 0); |
| 602 | } |
| 603 | |
| 604 | static void audevrc_flush_pcm_buf(struct audio *audio) |
| 605 | { |
| 606 | uint8_t index; |
| 607 | |
| 608 | for (index = 0; index < PCM_BUF_MAX_COUNT; index++) |
| 609 | audio->in[index].used = 0; |
| 610 | |
| 611 | audio->buf_refresh = 0; |
| 612 | audio->read_next = 0; |
| 613 | audio->fill_next = 0; |
| 614 | } |
| 615 | |
| 616 | static void audevrc_ioport_reset(struct audio *audio) |
| 617 | { |
| 618 | /* Make sure read/write thread are free from |
| 619 | * sleep and knowing that system is not able |
| 620 | * to process io request at the moment |
| 621 | */ |
| 622 | wake_up(&audio->write_wait); |
| 623 | mutex_lock(&audio->write_lock); |
| 624 | audevrc_flush(audio); |
| 625 | mutex_unlock(&audio->write_lock); |
| 626 | wake_up(&audio->read_wait); |
| 627 | mutex_lock(&audio->read_lock); |
| 628 | audevrc_flush_pcm_buf(audio); |
| 629 | mutex_unlock(&audio->read_lock); |
| 630 | audio->avsync_flag = 1; |
| 631 | wake_up(&audio->avsync_wait); |
| 632 | } |
| 633 | |
| 634 | static int audevrc_events_pending(struct audio *audio) |
| 635 | { |
| 636 | unsigned long flags; |
| 637 | int empty; |
| 638 | |
| 639 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 640 | empty = !list_empty(&audio->event_queue); |
| 641 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 642 | return empty || audio->event_abort; |
| 643 | } |
| 644 | |
| 645 | static void audevrc_reset_event_queue(struct audio *audio) |
| 646 | { |
| 647 | unsigned long flags; |
| 648 | struct audevrc_event *drv_evt; |
| 649 | struct list_head *ptr, *next; |
| 650 | |
| 651 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 652 | list_for_each_safe(ptr, next, &audio->event_queue) { |
| 653 | drv_evt = list_first_entry(&audio->event_queue, |
| 654 | struct audevrc_event, list); |
| 655 | list_del(&drv_evt->list); |
| 656 | kfree(drv_evt); |
| 657 | } |
| 658 | list_for_each_safe(ptr, next, &audio->free_event_queue) { |
| 659 | drv_evt = list_first_entry(&audio->free_event_queue, |
| 660 | struct audevrc_event, list); |
| 661 | list_del(&drv_evt->list); |
| 662 | kfree(drv_evt); |
| 663 | } |
| 664 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 665 | |
| 666 | return; |
| 667 | } |
| 668 | |
| 669 | |
| 670 | static long audevrc_process_event_req(struct audio *audio, void __user *arg) |
| 671 | { |
| 672 | long rc; |
| 673 | struct msm_audio_event usr_evt; |
| 674 | struct audevrc_event *drv_evt = NULL; |
| 675 | int timeout; |
| 676 | unsigned long flags; |
| 677 | |
| 678 | if (copy_from_user(&usr_evt, arg, sizeof(struct msm_audio_event))) |
| 679 | return -EFAULT; |
| 680 | |
| 681 | timeout = (int) usr_evt.timeout_ms; |
| 682 | |
| 683 | if (timeout > 0) { |
| 684 | rc = wait_event_interruptible_timeout( |
| 685 | audio->event_wait, audevrc_events_pending(audio), |
| 686 | msecs_to_jiffies(timeout)); |
| 687 | if (rc == 0) |
| 688 | return -ETIMEDOUT; |
| 689 | } else { |
| 690 | rc = wait_event_interruptible( |
| 691 | audio->event_wait, audevrc_events_pending(audio)); |
| 692 | } |
| 693 | |
| 694 | if (rc < 0) |
| 695 | return rc; |
| 696 | |
| 697 | if (audio->event_abort) { |
| 698 | audio->event_abort = 0; |
| 699 | return -ENODEV; |
| 700 | } |
| 701 | |
| 702 | rc = 0; |
| 703 | |
| 704 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 705 | if (!list_empty(&audio->event_queue)) { |
| 706 | drv_evt = list_first_entry(&audio->event_queue, |
| 707 | struct audevrc_event, list); |
| 708 | list_del(&drv_evt->list); |
| 709 | } |
| 710 | if (drv_evt) { |
| 711 | usr_evt.event_type = drv_evt->event_type; |
| 712 | usr_evt.event_payload = drv_evt->payload; |
| 713 | list_add_tail(&drv_evt->list, &audio->free_event_queue); |
| 714 | } else |
| 715 | rc = -1; |
| 716 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 717 | |
| 718 | if (!rc && copy_to_user(arg, &usr_evt, sizeof(usr_evt))) |
| 719 | rc = -EFAULT; |
| 720 | |
| 721 | return rc; |
| 722 | } |
| 723 | |
| 724 | static int audio_enable_eq(struct audio *audio, int enable) |
| 725 | { |
| 726 | if (audio->eq_enable == enable && !audio->eq_needs_commit) |
| 727 | return 0; |
| 728 | |
| 729 | audio->eq_enable = enable; |
| 730 | |
| 731 | if (audio->running) { |
| 732 | audpp_dsp_set_eq(audio->dec_id, enable, &audio->eq, POPP); |
| 733 | audio->eq_needs_commit = 0; |
| 734 | } |
| 735 | return 0; |
| 736 | } |
| 737 | |
| 738 | static int audio_get_avsync_data(struct audio *audio, |
| 739 | struct msm_audio_stats *stats) |
| 740 | { |
| 741 | int rc = -EINVAL; |
| 742 | unsigned long flags; |
| 743 | |
| 744 | local_irq_save(flags); |
| 745 | if (audio->dec_id == audio->avsync[0] && audio->avsync_flag) { |
| 746 | /* av_sync sample count */ |
| 747 | stats->sample_count = (audio->avsync[2] << 16) | |
| 748 | (audio->avsync[3]); |
| 749 | |
| 750 | /* av_sync byte_count */ |
| 751 | stats->byte_count = (audio->avsync[5] << 16) | |
| 752 | (audio->avsync[6]); |
| 753 | |
| 754 | audio->avsync_flag = 0; |
| 755 | rc = 0; |
| 756 | } |
| 757 | local_irq_restore(flags); |
| 758 | return rc; |
| 759 | |
| 760 | } |
| 761 | |
| 762 | static long audevrc_ioctl(struct file *file, unsigned int cmd, |
| 763 | unsigned long arg) |
| 764 | { |
| 765 | struct audio *audio = file->private_data; |
| 766 | int rc = -EINVAL; |
| 767 | unsigned long flags = 0; |
| 768 | uint16_t enable_mask; |
| 769 | int enable; |
| 770 | int prev_state; |
| 771 | |
| 772 | MM_DBG("cmd = %d\n", cmd); |
| 773 | |
| 774 | if (cmd == AUDIO_GET_STATS) { |
| 775 | struct msm_audio_stats stats; |
| 776 | |
| 777 | audio->avsync_flag = 0; |
| 778 | memset(&stats, 0, sizeof(stats)); |
| 779 | if (audpp_query_avsync(audio->dec_id) < 0) |
| 780 | return rc; |
| 781 | |
| 782 | rc = wait_event_interruptible_timeout(audio->avsync_wait, |
| 783 | (audio->avsync_flag == 1), |
| 784 | msecs_to_jiffies(AUDPP_AVSYNC_EVENT_TIMEOUT)); |
| 785 | |
| 786 | if (rc < 0) |
| 787 | return rc; |
| 788 | else if ((rc > 0) || ((rc == 0) && (audio->avsync_flag == 1))) { |
| 789 | if (audio_get_avsync_data(audio, &stats) < 0) |
| 790 | return rc; |
| 791 | |
| 792 | if (copy_to_user((void *)arg, &stats, sizeof(stats))) |
| 793 | return -EFAULT; |
| 794 | return 0; |
| 795 | } else |
| 796 | return -EAGAIN; |
| 797 | } |
| 798 | |
| 799 | switch (cmd) { |
| 800 | case AUDIO_ENABLE_AUDPP: |
| 801 | if (copy_from_user(&enable_mask, (void *) arg, |
| 802 | sizeof(enable_mask))) { |
| 803 | rc = -EFAULT; |
| 804 | break; |
| 805 | } |
| 806 | |
| 807 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 808 | enable = (enable_mask & EQ_ENABLE) ? 1 : 0; |
| 809 | audio_enable_eq(audio, enable); |
| 810 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 811 | rc = 0; |
| 812 | break; |
| 813 | case AUDIO_SET_VOLUME: |
| 814 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 815 | audio->vol_pan.volume = arg; |
| 816 | if (audio->running) |
| 817 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 818 | POPP); |
| 819 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 820 | rc = 0; |
| 821 | break; |
| 822 | |
| 823 | case AUDIO_SET_PAN: |
| 824 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 825 | audio->vol_pan.pan = arg; |
| 826 | if (audio->running) |
| 827 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 828 | POPP); |
| 829 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 830 | rc = 0; |
| 831 | break; |
| 832 | |
| 833 | case AUDIO_SET_EQ: |
| 834 | prev_state = audio->eq_enable; |
| 835 | audio->eq_enable = 0; |
| 836 | if (copy_from_user(&audio->eq.num_bands, (void *) arg, |
| 837 | sizeof(audio->eq) - |
| 838 | (AUDPP_CMD_CFG_OBJECT_PARAMS_COMMON_LEN + 2))) { |
| 839 | rc = -EFAULT; |
| 840 | break; |
| 841 | } |
| 842 | audio->eq_enable = prev_state; |
| 843 | audio->eq_needs_commit = 1; |
| 844 | rc = 0; |
| 845 | break; |
| 846 | } |
| 847 | |
| 848 | if (-EINVAL != rc) |
| 849 | return rc; |
| 850 | |
| 851 | if (cmd == AUDIO_GET_EVENT) { |
| 852 | MM_DBG("AUDIO_GET_EVENT\n"); |
| 853 | if (mutex_trylock(&audio->get_event_lock)) { |
| 854 | rc = audevrc_process_event_req(audio, |
| 855 | (void __user *) arg); |
| 856 | mutex_unlock(&audio->get_event_lock); |
| 857 | } else |
| 858 | rc = -EBUSY; |
| 859 | return rc; |
| 860 | } |
| 861 | |
| 862 | if (cmd == AUDIO_ABORT_GET_EVENT) { |
| 863 | audio->event_abort = 1; |
| 864 | wake_up(&audio->event_wait); |
| 865 | return 0; |
| 866 | } |
| 867 | |
| 868 | mutex_lock(&audio->lock); |
| 869 | switch (cmd) { |
| 870 | case AUDIO_START: |
| 871 | MM_DBG("AUDIO_START\n"); |
| 872 | rc = audevrc_enable(audio); |
| 873 | if (!rc) { |
| 874 | rc = wait_event_interruptible_timeout(audio->wait, |
| 875 | audio->dec_state != MSM_AUD_DECODER_STATE_NONE, |
| 876 | msecs_to_jiffies(MSM_AUD_DECODER_WAIT_MS)); |
| 877 | MM_INFO("dec_state %d rc = %d\n", audio->dec_state, rc); |
| 878 | |
| 879 | if (audio->dec_state != MSM_AUD_DECODER_STATE_SUCCESS) |
| 880 | rc = -ENODEV; |
| 881 | else |
| 882 | rc = 0; |
| 883 | } |
| 884 | break; |
| 885 | case AUDIO_STOP: |
| 886 | MM_DBG("AUDIO_STOP\n"); |
| 887 | rc = audevrc_disable(audio); |
| 888 | audio->stopped = 1; |
| 889 | audevrc_ioport_reset(audio); |
| 890 | audio->stopped = 0; |
| 891 | break; |
| 892 | case AUDIO_FLUSH: |
| 893 | MM_DBG("AUDIO_FLUSH\n"); |
| 894 | audio->rflush = 1; |
| 895 | audio->wflush = 1; |
| 896 | audevrc_ioport_reset(audio); |
| 897 | if (audio->running) { |
| 898 | audpp_flush(audio->dec_id); |
| 899 | rc = wait_event_interruptible(audio->write_wait, |
| 900 | !audio->wflush); |
| 901 | if (rc < 0) { |
| 902 | MM_ERR("AUDIO_FLUSH interrupted\n"); |
| 903 | rc = -EINTR; |
| 904 | } |
| 905 | } else { |
| 906 | audio->rflush = 0; |
| 907 | audio->wflush = 0; |
| 908 | } |
| 909 | break; |
| 910 | case AUDIO_SET_CONFIG:{ |
| 911 | struct msm_audio_config config; |
| 912 | if (copy_from_user |
| 913 | (&config, (void *)arg, sizeof(config))) { |
| 914 | rc = -EFAULT; |
| 915 | break; |
| 916 | } |
| 917 | audio->mfield = config.meta_field; |
| 918 | rc = 0; |
| 919 | MM_DBG("AUDIO_SET_CONFIG applicable only \ |
| 920 | for meta field configuration\n"); |
| 921 | break; |
| 922 | } |
| 923 | case AUDIO_GET_CONFIG:{ |
| 924 | struct msm_audio_config config; |
| 925 | config.buffer_size = BUFSZ; |
| 926 | config.buffer_count = 2; |
| 927 | config.sample_rate = 8000; |
| 928 | config.channel_count = 1; |
| 929 | config.meta_field = 0; |
| 930 | config.unused[0] = 0; |
| 931 | config.unused[1] = 0; |
| 932 | config.unused[2] = 0; |
| 933 | if (copy_to_user((void *)arg, &config, sizeof(config))) |
| 934 | rc = -EFAULT; |
| 935 | else |
| 936 | rc = 0; |
| 937 | break; |
| 938 | } |
| 939 | case AUDIO_GET_PCM_CONFIG:{ |
| 940 | struct msm_audio_pcm_config config; |
| 941 | config.pcm_feedback = audio->pcm_feedback; |
| 942 | config.buffer_count = PCM_BUF_MAX_COUNT; |
| 943 | config.buffer_size = PCM_BUFSZ_MIN; |
| 944 | if (copy_to_user((void *)arg, &config, sizeof(config))) |
| 945 | rc = -EFAULT; |
| 946 | else |
| 947 | rc = 0; |
| 948 | break; |
| 949 | } |
| 950 | case AUDIO_SET_PCM_CONFIG:{ |
| 951 | struct msm_audio_pcm_config config; |
| 952 | if (copy_from_user |
| 953 | (&config, (void *)arg, sizeof(config))) { |
| 954 | rc = -EFAULT; |
| 955 | break; |
| 956 | } |
| 957 | if (config.pcm_feedback != audio->pcm_feedback) { |
| 958 | MM_ERR("Not sufficient permission to" |
| 959 | "change the playback mode\n"); |
| 960 | rc = -EACCES; |
| 961 | break; |
| 962 | } |
| 963 | if ((config.buffer_count > PCM_BUF_MAX_COUNT) || |
| 964 | (config.buffer_count == 1)) |
| 965 | config.buffer_count = PCM_BUF_MAX_COUNT; |
| 966 | |
| 967 | if (config.buffer_size < PCM_BUFSZ_MIN) |
| 968 | config.buffer_size = PCM_BUFSZ_MIN; |
| 969 | |
| 970 | /* Check if pcm feedback is required */ |
| 971 | if ((config.pcm_feedback) && (!audio->read_data)) { |
| 972 | MM_DBG("allocate PCM buf %d\n", |
| 973 | config.buffer_count * |
| 974 | config.buffer_size); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 975 | audio->read_phys = |
| 976 | allocate_contiguous_ebi_nomap( |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 977 | config.buffer_size * |
| 978 | config.buffer_count, |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 979 | SZ_4K); |
| 980 | if (!audio->read_phys) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 981 | rc = -ENOMEM; |
| 982 | break; |
| 983 | } |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 984 | audio->map_v_read = ioremap( |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 985 | audio->read_phys, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 986 | config.buffer_size * |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 987 | config.buffer_count); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 988 | if (IS_ERR(audio->map_v_read)) { |
| 989 | MM_ERR("failed to map read" |
| 990 | " phy address\n"); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 991 | rc = -ENOMEM; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 992 | free_contiguous_memory_by_paddr( |
| 993 | audio->read_phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 994 | } else { |
| 995 | uint8_t index; |
| 996 | uint32_t offset = 0; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 997 | audio->read_data = |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 998 | audio->map_v_read; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 999 | audio->buf_refresh = 0; |
| 1000 | audio->pcm_buf_count = |
| 1001 | config.buffer_count; |
| 1002 | audio->read_next = 0; |
| 1003 | audio->fill_next = 0; |
| 1004 | |
| 1005 | for (index = 0; |
| 1006 | index < config.buffer_count; |
| 1007 | index++) { |
| 1008 | audio->in[index].data = |
| 1009 | audio->read_data + offset; |
| 1010 | audio->in[index].addr = |
| 1011 | audio->read_phys + offset; |
| 1012 | audio->in[index].size = |
| 1013 | config.buffer_size; |
| 1014 | audio->in[index].used = 0; |
| 1015 | offset += config.buffer_size; |
| 1016 | } |
| 1017 | MM_DBG("read buf: phy addr \ |
| 1018 | 0x%08x kernel addr 0x%08x\n", |
| 1019 | audio->read_phys, |
| 1020 | (int)audio->read_data); |
| 1021 | rc = 0; |
| 1022 | } |
| 1023 | } else { |
| 1024 | rc = 0; |
| 1025 | } |
| 1026 | break; |
| 1027 | } |
| 1028 | case AUDIO_PAUSE: |
| 1029 | MM_DBG("AUDIO_PAUSE %ld\n", arg); |
| 1030 | rc = audpp_pause(audio->dec_id, (int) arg); |
| 1031 | break; |
| 1032 | case AUDIO_GET_SESSION_ID: |
| 1033 | if (copy_to_user((void *) arg, &audio->dec_id, |
| 1034 | sizeof(unsigned short))) |
| 1035 | rc = -EFAULT; |
| 1036 | else |
| 1037 | rc = 0; |
| 1038 | break; |
| 1039 | default: |
| 1040 | rc = -EINVAL; |
| 1041 | } |
| 1042 | mutex_unlock(&audio->lock); |
| 1043 | return rc; |
| 1044 | } |
| 1045 | |
| 1046 | /* Only useful in tunnel-mode */ |
Steve Muckle | f132c6c | 2012-06-06 18:30:57 -0700 | [diff] [blame] | 1047 | static int audevrc_fsync(struct file *file, loff_t ppos1, loff_t ppos2, int datasync) |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1048 | { |
| 1049 | struct audio *audio = file->private_data; |
| 1050 | int rc = 0; |
| 1051 | |
| 1052 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1053 | if (!audio->running || audio->pcm_feedback) { |
| 1054 | rc = -EINVAL; |
| 1055 | goto done_nolock; |
| 1056 | } |
| 1057 | |
| 1058 | mutex_lock(&audio->write_lock); |
| 1059 | |
| 1060 | rc = wait_event_interruptible(audio->write_wait, |
| 1061 | (!audio->out[0].used && |
| 1062 | !audio->out[1].used && |
| 1063 | audio->out_needed) || audio->wflush); |
| 1064 | |
| 1065 | if (rc < 0) |
| 1066 | goto done; |
| 1067 | else if (audio->wflush) { |
| 1068 | rc = -EBUSY; |
| 1069 | goto done; |
| 1070 | } |
| 1071 | |
| 1072 | /* pcm dmamiss message is sent continously |
| 1073 | * when decoder is starved so no race |
| 1074 | * condition concern |
| 1075 | */ |
| 1076 | audio->teos = 0; |
| 1077 | |
| 1078 | rc = wait_event_interruptible(audio->write_wait, |
| 1079 | audio->teos || audio->wflush); |
| 1080 | |
| 1081 | if (audio->wflush) |
| 1082 | rc = -EBUSY; |
| 1083 | |
| 1084 | done: |
| 1085 | mutex_unlock(&audio->write_lock); |
| 1086 | done_nolock: |
| 1087 | return rc; |
| 1088 | } |
| 1089 | |
| 1090 | static ssize_t audevrc_read(struct file *file, char __user *buf, size_t count, |
| 1091 | loff_t *pos) |
| 1092 | { |
| 1093 | struct audio *audio = file->private_data; |
| 1094 | const char __user *start = buf; |
| 1095 | int rc = 0; |
| 1096 | if (!audio->pcm_feedback) { |
| 1097 | return 0; |
| 1098 | /* PCM feedback is not enabled. Nothing to read */ |
| 1099 | } |
| 1100 | mutex_lock(&audio->read_lock); |
| 1101 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1102 | while (count > 0) { |
| 1103 | rc = wait_event_interruptible(audio->read_wait, |
| 1104 | (audio->in[audio->read_next].used > 0) || |
| 1105 | (audio->stopped) || (audio->rflush)); |
| 1106 | |
| 1107 | MM_DBG("wait terminated \n"); |
| 1108 | if (rc < 0) |
| 1109 | break; |
| 1110 | if (audio->stopped || audio->rflush) { |
| 1111 | rc = -EBUSY; |
| 1112 | break; |
| 1113 | } |
| 1114 | if (count < audio->in[audio->read_next].used) { |
| 1115 | /* Read must happen in frame boundary. Since driver does |
| 1116 | * not know frame size, read count must be greater or |
| 1117 | * equal to size of PCM samples |
| 1118 | */ |
| 1119 | MM_DBG("read stop - partial frame\n"); |
| 1120 | break; |
| 1121 | } else { |
| 1122 | MM_DBG("read from in[%d]\n", audio->read_next); |
| 1123 | if (copy_to_user |
| 1124 | (buf, audio->in[audio->read_next].data, |
| 1125 | audio->in[audio->read_next].used)) { |
| 1126 | MM_ERR("invalid addr %x \n", |
| 1127 | (unsigned int)buf); |
| 1128 | rc = -EFAULT; |
| 1129 | break; |
| 1130 | } |
| 1131 | count -= audio->in[audio->read_next].used; |
| 1132 | buf += audio->in[audio->read_next].used; |
| 1133 | audio->in[audio->read_next].used = 0; |
| 1134 | if ((++audio->read_next) == audio->pcm_buf_count) |
| 1135 | audio->read_next = 0; |
| 1136 | break; |
| 1137 | /* Force to exit while loop |
| 1138 | * to prevent output thread |
| 1139 | * sleep too long if data is |
| 1140 | * not ready at this moment |
| 1141 | */ |
| 1142 | |
| 1143 | } |
| 1144 | } |
| 1145 | /* don't feed output buffer to HW decoder during flushing |
| 1146 | * buffer refresh command will be sent once flush completes |
| 1147 | * send buf refresh command here can confuse HW decoder |
| 1148 | */ |
| 1149 | if (audio->buf_refresh && !audio->rflush) { |
| 1150 | audio->buf_refresh = 0; |
| 1151 | MM_DBG("kick start pcm feedback again\n"); |
| 1152 | audevrc_buffer_refresh(audio); |
| 1153 | } |
| 1154 | mutex_unlock(&audio->read_lock); |
| 1155 | if (buf > start) |
| 1156 | rc = buf - start; |
| 1157 | MM_DBG("read %d bytes\n", rc); |
| 1158 | return rc; |
| 1159 | } |
| 1160 | |
| 1161 | static int audevrc_process_eos(struct audio *audio, |
| 1162 | const char __user *buf_start, unsigned short mfield_size) |
| 1163 | { |
| 1164 | int rc = 0; |
| 1165 | struct buffer *frame; |
| 1166 | |
| 1167 | frame = audio->out + audio->out_head; |
| 1168 | |
| 1169 | rc = wait_event_interruptible(audio->write_wait, |
| 1170 | (audio->out_needed && |
| 1171 | audio->out[0].used == 0 && |
| 1172 | audio->out[1].used == 0) |
| 1173 | || (audio->stopped) |
| 1174 | || (audio->wflush)); |
| 1175 | |
| 1176 | if (rc < 0) |
| 1177 | goto done; |
| 1178 | if (audio->stopped || audio->wflush) { |
| 1179 | rc = -EBUSY; |
| 1180 | goto done; |
| 1181 | } |
| 1182 | |
| 1183 | if (copy_from_user(frame->data, buf_start, mfield_size)) { |
| 1184 | rc = -EFAULT; |
| 1185 | goto done; |
| 1186 | } |
| 1187 | |
| 1188 | frame->mfield_sz = mfield_size; |
| 1189 | audio->out_head ^= 1; |
| 1190 | frame->used = mfield_size; |
| 1191 | audevrc_send_data(audio, 0); |
| 1192 | |
| 1193 | done: |
| 1194 | return rc; |
| 1195 | } |
| 1196 | |
| 1197 | static ssize_t audevrc_write(struct file *file, const char __user *buf, |
| 1198 | size_t count, loff_t *pos) |
| 1199 | { |
| 1200 | struct audio *audio = file->private_data; |
| 1201 | const char __user *start = buf; |
| 1202 | struct buffer *frame; |
| 1203 | size_t xfer; |
| 1204 | char *cpy_ptr; |
| 1205 | unsigned short mfield_size = 0; |
| 1206 | int rc = 0, eos_condition = AUDEVRC_EOS_NONE; |
| 1207 | |
| 1208 | MM_DBG("cnt=%d\n", count); |
| 1209 | |
| 1210 | if (count & 1) |
| 1211 | return -EINVAL; |
| 1212 | |
| 1213 | mutex_lock(&audio->write_lock); |
| 1214 | while (count > 0) { |
| 1215 | frame = audio->out + audio->out_head; |
| 1216 | cpy_ptr = frame->data; |
| 1217 | rc = wait_event_interruptible(audio->write_wait, |
| 1218 | (frame->used == 0) |
| 1219 | || (audio->stopped) |
| 1220 | || (audio->wflush)); |
| 1221 | if (rc < 0) |
| 1222 | break; |
| 1223 | if (audio->stopped || audio->wflush) { |
| 1224 | rc = -EBUSY; |
| 1225 | break; |
| 1226 | } |
| 1227 | |
| 1228 | if (audio->mfield) { |
| 1229 | if (buf == start) { |
| 1230 | /* Processing beginning of user buffer */ |
| 1231 | if (__get_user(mfield_size, |
| 1232 | (unsigned short __user *) buf)) { |
| 1233 | rc = -EFAULT; |
| 1234 | break; |
| 1235 | } else if (mfield_size > count) { |
| 1236 | rc = -EINVAL; |
| 1237 | break; |
| 1238 | } |
| 1239 | MM_DBG("mf offset_val %x\n", mfield_size); |
| 1240 | if (copy_from_user(cpy_ptr, buf, |
| 1241 | mfield_size)) { |
| 1242 | rc = -EFAULT; |
| 1243 | break; |
| 1244 | } |
| 1245 | /* Check if EOS flag is set and buffer has |
| 1246 | * contains just meta field |
| 1247 | */ |
| 1248 | if (cpy_ptr[AUDEVRC_EOS_FLG_OFFSET] & |
| 1249 | AUDEVRC_EOS_FLG_MASK) { |
| 1250 | MM_DBG("eos set\n"); |
| 1251 | eos_condition = AUDEVRC_EOS_SET; |
| 1252 | if (mfield_size == count) { |
| 1253 | buf += mfield_size; |
| 1254 | break; |
| 1255 | } else |
| 1256 | cpy_ptr[AUDEVRC_EOS_FLG_OFFSET] &= |
| 1257 | ~AUDEVRC_EOS_FLG_MASK; |
| 1258 | } |
| 1259 | /* Check EOS to see if */ |
| 1260 | cpy_ptr += mfield_size; |
| 1261 | count -= mfield_size; |
| 1262 | buf += mfield_size; |
| 1263 | } else { |
| 1264 | mfield_size = 0; |
| 1265 | MM_DBG("continuous buffer\n"); |
| 1266 | } |
| 1267 | frame->mfield_sz = mfield_size; |
| 1268 | } |
| 1269 | |
| 1270 | xfer = (count > (frame->size - mfield_size)) ? |
| 1271 | (frame->size - mfield_size) : count; |
| 1272 | if (copy_from_user(cpy_ptr, buf, xfer)) { |
| 1273 | rc = -EFAULT; |
| 1274 | break; |
| 1275 | } |
| 1276 | |
| 1277 | frame->used = xfer + mfield_size; |
| 1278 | audio->out_head ^= 1; |
| 1279 | count -= xfer; |
| 1280 | buf += xfer; |
| 1281 | audevrc_send_data(audio, 0); |
| 1282 | } |
| 1283 | if (eos_condition == AUDEVRC_EOS_SET) |
| 1284 | rc = audevrc_process_eos(audio, start, mfield_size); |
| 1285 | mutex_unlock(&audio->write_lock); |
| 1286 | if (!rc) { |
| 1287 | if (buf > start) |
| 1288 | return buf - start; |
| 1289 | } |
| 1290 | return rc; |
| 1291 | } |
| 1292 | |
| 1293 | static int audevrc_release(struct inode *inode, struct file *file) |
| 1294 | { |
| 1295 | struct audio *audio = file->private_data; |
| 1296 | |
| 1297 | MM_INFO("audio instance 0x%08x freeing\n", (int)audio); |
| 1298 | mutex_lock(&audio->lock); |
| 1299 | auddev_unregister_evt_listner(AUDDEV_CLNT_DEC, audio->dec_id); |
| 1300 | audevrc_disable(audio); |
| 1301 | audevrc_flush(audio); |
| 1302 | audevrc_flush_pcm_buf(audio); |
| 1303 | msm_adsp_put(audio->audplay); |
| 1304 | audpp_adec_free(audio->dec_id); |
| 1305 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 1306 | unregister_early_suspend(&audio->suspend_ctl.node); |
| 1307 | #endif |
| 1308 | audio->event_abort = 1; |
| 1309 | wake_up(&audio->event_wait); |
| 1310 | audevrc_reset_event_queue(audio); |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1311 | iounmap(audio->map_v_write); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1312 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1313 | if (audio->read_data) { |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1314 | iounmap(audio->map_v_read); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1315 | free_contiguous_memory_by_paddr(audio->read_phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1316 | } |
| 1317 | mutex_unlock(&audio->lock); |
| 1318 | #ifdef CONFIG_DEBUG_FS |
| 1319 | if (audio->dentry) |
| 1320 | debugfs_remove(audio->dentry); |
| 1321 | #endif |
| 1322 | kfree(audio); |
| 1323 | return 0; |
| 1324 | } |
| 1325 | |
Vinay Vaka | 051db72 | 2012-01-24 19:48:32 +0530 | [diff] [blame] | 1326 | #ifdef CONFIG_HAS_EARLYSUSPEND |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1327 | static void audevrc_post_event(struct audio *audio, int type, |
| 1328 | union msm_audio_event_payload payload) |
| 1329 | { |
| 1330 | struct audevrc_event *e_node = NULL; |
| 1331 | unsigned long flags; |
| 1332 | |
| 1333 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 1334 | |
| 1335 | if (!list_empty(&audio->free_event_queue)) { |
| 1336 | e_node = list_first_entry(&audio->free_event_queue, |
| 1337 | struct audevrc_event, list); |
| 1338 | list_del(&e_node->list); |
| 1339 | } else { |
| 1340 | e_node = kmalloc(sizeof(struct audevrc_event), GFP_ATOMIC); |
| 1341 | if (!e_node) { |
| 1342 | MM_ERR("No mem to post event %d\n", type); |
| 1343 | return; |
| 1344 | } |
| 1345 | } |
| 1346 | |
| 1347 | e_node->event_type = type; |
| 1348 | e_node->payload = payload; |
| 1349 | |
| 1350 | list_add_tail(&e_node->list, &audio->event_queue); |
| 1351 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 1352 | wake_up(&audio->event_wait); |
| 1353 | } |
| 1354 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1355 | static void audevrc_suspend(struct early_suspend *h) |
| 1356 | { |
| 1357 | struct audevrc_suspend_ctl *ctl = |
| 1358 | container_of(h, struct audevrc_suspend_ctl, node); |
| 1359 | union msm_audio_event_payload payload; |
| 1360 | |
| 1361 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1362 | audevrc_post_event(ctl->audio, AUDIO_EVENT_SUSPEND, payload); |
| 1363 | } |
| 1364 | |
| 1365 | static void audevrc_resume(struct early_suspend *h) |
| 1366 | { |
| 1367 | struct audevrc_suspend_ctl *ctl = |
| 1368 | container_of(h, struct audevrc_suspend_ctl, node); |
| 1369 | union msm_audio_event_payload payload; |
| 1370 | |
| 1371 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1372 | audevrc_post_event(ctl->audio, AUDIO_EVENT_RESUME, payload); |
| 1373 | } |
| 1374 | #endif |
| 1375 | |
| 1376 | #ifdef CONFIG_DEBUG_FS |
| 1377 | static ssize_t audevrc_debug_open(struct inode *inode, struct file *file) |
| 1378 | { |
| 1379 | file->private_data = inode->i_private; |
| 1380 | return 0; |
| 1381 | } |
| 1382 | |
| 1383 | static ssize_t audevrc_debug_read(struct file *file, char __user *buf, |
| 1384 | size_t count, loff_t *ppos) |
| 1385 | { |
| 1386 | const int debug_bufmax = 1024; |
| 1387 | static char buffer[1024]; |
| 1388 | int n = 0, i; |
| 1389 | struct audio *audio = file->private_data; |
| 1390 | |
| 1391 | mutex_lock(&audio->lock); |
| 1392 | n = scnprintf(buffer, debug_bufmax, "opened %d\n", audio->opened); |
| 1393 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1394 | "enabled %d\n", audio->enabled); |
| 1395 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1396 | "stopped %d\n", audio->stopped); |
| 1397 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1398 | "pcm_feedback %d\n", audio->pcm_feedback); |
| 1399 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1400 | "out_buf_sz %d\n", audio->out[0].size); |
| 1401 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1402 | "pcm_buf_count %d \n", audio->pcm_buf_count); |
| 1403 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1404 | "pcm_buf_sz %d \n", audio->in[0].size); |
| 1405 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1406 | "volume %x \n", audio->vol_pan.volume); |
| 1407 | mutex_unlock(&audio->lock); |
| 1408 | /* Following variables are only useful for debugging when |
| 1409 | * when playback halts unexpectedly. Thus, no mutual exclusion |
| 1410 | * enforced |
| 1411 | */ |
| 1412 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1413 | "wflush %d\n", audio->wflush); |
| 1414 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1415 | "rflush %d\n", audio->rflush); |
| 1416 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1417 | "running %d \n", audio->running); |
| 1418 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1419 | "dec state %d \n", audio->dec_state); |
| 1420 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1421 | "out_needed %d \n", audio->out_needed); |
| 1422 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1423 | "out_head %d \n", audio->out_head); |
| 1424 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1425 | "out_tail %d \n", audio->out_tail); |
| 1426 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1427 | "out[0].used %d \n", audio->out[0].used); |
| 1428 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1429 | "out[1].used %d \n", audio->out[1].used); |
| 1430 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1431 | "buffer_refresh %d \n", audio->buf_refresh); |
| 1432 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1433 | "read_next %d \n", audio->read_next); |
| 1434 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1435 | "fill_next %d \n", audio->fill_next); |
| 1436 | for (i = 0; i < audio->pcm_buf_count; i++) |
| 1437 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 1438 | "in[%d].size %d \n", i, audio->in[i].used); |
| 1439 | buffer[n] = 0; |
| 1440 | return simple_read_from_buffer(buf, count, ppos, buffer, n); |
| 1441 | } |
| 1442 | |
| 1443 | static const struct file_operations audevrc_debug_fops = { |
| 1444 | .read = audevrc_debug_read, |
| 1445 | .open = audevrc_debug_open, |
| 1446 | }; |
| 1447 | #endif |
| 1448 | |
| 1449 | static int audevrc_open(struct inode *inode, struct file *file) |
| 1450 | { |
| 1451 | struct audio *audio = NULL; |
| 1452 | int rc, dec_attrb, decid, i; |
| 1453 | struct audevrc_event *e_node = NULL; |
| 1454 | #ifdef CONFIG_DEBUG_FS |
| 1455 | /* 4 bytes represents decoder number, 1 byte for terminate string */ |
| 1456 | char name[sizeof "msm_evrc_" + 5]; |
| 1457 | #endif |
| 1458 | |
| 1459 | /* Allocate audio instance, set to zero */ |
| 1460 | audio = kzalloc(sizeof(struct audio), GFP_KERNEL); |
| 1461 | if (!audio) { |
| 1462 | MM_ERR("no memory to allocate audio instance\n"); |
| 1463 | rc = -ENOMEM; |
| 1464 | goto done; |
| 1465 | } |
| 1466 | MM_INFO("audio instance 0x%08x created\n", (int)audio); |
| 1467 | |
| 1468 | /* Allocate the decoder */ |
| 1469 | dec_attrb = AUDDEC_DEC_EVRC; |
| 1470 | if ((file->f_mode & FMODE_WRITE) && |
| 1471 | (file->f_mode & FMODE_READ)) { |
| 1472 | dec_attrb |= MSM_AUD_MODE_NONTUNNEL; |
| 1473 | audio->pcm_feedback = NON_TUNNEL_MODE_PLAYBACK; |
| 1474 | } else if ((file->f_mode & FMODE_WRITE) && |
| 1475 | !(file->f_mode & FMODE_READ)) { |
| 1476 | dec_attrb |= MSM_AUD_MODE_TUNNEL; |
| 1477 | audio->pcm_feedback = TUNNEL_MODE_PLAYBACK; |
| 1478 | } else { |
| 1479 | kfree(audio); |
| 1480 | rc = -EACCES; |
| 1481 | goto done; |
| 1482 | } |
| 1483 | decid = audpp_adec_alloc(dec_attrb, &audio->module_name, |
| 1484 | &audio->queue_id); |
| 1485 | |
| 1486 | if (decid < 0) { |
| 1487 | MM_ERR("No free decoder available, freeing instance 0x%08x\n", |
| 1488 | (int)audio); |
| 1489 | rc = -ENODEV; |
| 1490 | kfree(audio); |
| 1491 | goto done; |
| 1492 | } |
| 1493 | |
| 1494 | audio->dec_id = decid & MSM_AUD_DECODER_MASK; |
| 1495 | |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1496 | audio->phys = allocate_contiguous_ebi_nomap(DMASZ, SZ_4K); |
| 1497 | if (!audio->phys) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1498 | MM_ERR("could not allocate write buffers, freeing instance \ |
| 1499 | 0x%08x\n", (int)audio); |
| 1500 | rc = -ENOMEM; |
| 1501 | audpp_adec_free(audio->dec_id); |
| 1502 | kfree(audio); |
| 1503 | goto done; |
| 1504 | } else { |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1505 | audio->map_v_write = ioremap(audio->phys, DMASZ); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1506 | if (IS_ERR(audio->map_v_write)) { |
| 1507 | MM_ERR("failed to map write physical address, freeing \ |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1508 | instance 0x%08x\n", (int)audio); |
| 1509 | rc = -ENOMEM; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1510 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1511 | audpp_adec_free(audio->dec_id); |
| 1512 | kfree(audio); |
| 1513 | goto done; |
| 1514 | } |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1515 | audio->data = audio->map_v_write; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1516 | MM_DBG("write buf: phy addr 0x%08x kernel addr 0x%08x\n", |
| 1517 | audio->phys, (int)audio->data); |
| 1518 | } |
| 1519 | |
| 1520 | rc = msm_adsp_get(audio->module_name, &audio->audplay, |
| 1521 | &audplay_adsp_ops_evrc, audio); |
| 1522 | |
| 1523 | if (rc) { |
| 1524 | MM_ERR("failed to get %s module, freeing instance 0x%08x\n", |
| 1525 | audio->module_name, (int)audio); |
| 1526 | goto err; |
| 1527 | } |
| 1528 | |
| 1529 | /* Initialize all locks of audio instance */ |
| 1530 | mutex_init(&audio->lock); |
| 1531 | mutex_init(&audio->write_lock); |
| 1532 | mutex_init(&audio->read_lock); |
| 1533 | mutex_init(&audio->get_event_lock); |
| 1534 | spin_lock_init(&audio->dsp_lock); |
| 1535 | init_waitqueue_head(&audio->write_wait); |
| 1536 | init_waitqueue_head(&audio->read_wait); |
| 1537 | INIT_LIST_HEAD(&audio->free_event_queue); |
| 1538 | INIT_LIST_HEAD(&audio->event_queue); |
| 1539 | init_waitqueue_head(&audio->wait); |
| 1540 | init_waitqueue_head(&audio->event_wait); |
| 1541 | spin_lock_init(&audio->event_queue_lock); |
| 1542 | init_waitqueue_head(&audio->avsync_wait); |
| 1543 | |
| 1544 | audio->out[0].data = audio->data + 0; |
| 1545 | audio->out[0].addr = audio->phys + 0; |
| 1546 | audio->out[0].size = BUFSZ; |
| 1547 | |
| 1548 | audio->out[1].data = audio->data + BUFSZ; |
| 1549 | audio->out[1].addr = audio->phys + BUFSZ; |
| 1550 | audio->out[1].size = BUFSZ; |
| 1551 | |
| 1552 | audio->vol_pan.volume = 0x3FFF; |
| 1553 | |
| 1554 | audevrc_flush(audio); |
| 1555 | |
| 1556 | file->private_data = audio; |
| 1557 | audio->opened = 1; |
| 1558 | |
| 1559 | audio->device_events = AUDDEV_EVT_DEV_RDY |
| 1560 | |AUDDEV_EVT_DEV_RLS| |
| 1561 | AUDDEV_EVT_STREAM_VOL_CHG; |
| 1562 | |
| 1563 | rc = auddev_register_evt_listner(audio->device_events, |
| 1564 | AUDDEV_CLNT_DEC, |
| 1565 | audio->dec_id, |
| 1566 | evrc_listner, |
| 1567 | (void *)audio); |
| 1568 | if (rc) { |
| 1569 | MM_ERR("%s: failed to register listner\n", __func__); |
| 1570 | goto event_err; |
| 1571 | } |
| 1572 | |
| 1573 | #ifdef CONFIG_DEBUG_FS |
| 1574 | snprintf(name, sizeof name, "msm_evrc_%04x", audio->dec_id); |
| 1575 | audio->dentry = debugfs_create_file(name, S_IFREG | S_IRUGO, |
| 1576 | NULL, (void *) audio, &audevrc_debug_fops); |
| 1577 | |
| 1578 | if (IS_ERR(audio->dentry)) |
| 1579 | MM_DBG("debugfs_create_file failed\n"); |
| 1580 | #endif |
| 1581 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 1582 | audio->suspend_ctl.node.level = EARLY_SUSPEND_LEVEL_DISABLE_FB; |
| 1583 | audio->suspend_ctl.node.resume = audevrc_resume; |
| 1584 | audio->suspend_ctl.node.suspend = audevrc_suspend; |
| 1585 | audio->suspend_ctl.audio = audio; |
| 1586 | register_early_suspend(&audio->suspend_ctl.node); |
| 1587 | #endif |
| 1588 | for (i = 0; i < AUDEVRC_EVENT_NUM; i++) { |
| 1589 | e_node = kmalloc(sizeof(struct audevrc_event), GFP_KERNEL); |
| 1590 | if (e_node) |
| 1591 | list_add_tail(&e_node->list, &audio->free_event_queue); |
| 1592 | else { |
| 1593 | MM_ERR("event pkt alloc failed\n"); |
| 1594 | break; |
| 1595 | } |
| 1596 | } |
| 1597 | done: |
| 1598 | return rc; |
| 1599 | event_err: |
| 1600 | msm_adsp_put(audio->audplay); |
| 1601 | err: |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1602 | iounmap(audio->map_v_write); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1603 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1604 | audpp_adec_free(audio->dec_id); |
| 1605 | kfree(audio); |
| 1606 | return rc; |
| 1607 | } |
| 1608 | |
| 1609 | static const struct file_operations audio_evrc_fops = { |
| 1610 | .owner = THIS_MODULE, |
| 1611 | .open = audevrc_open, |
| 1612 | .release = audevrc_release, |
| 1613 | .read = audevrc_read, |
| 1614 | .write = audevrc_write, |
| 1615 | .unlocked_ioctl = audevrc_ioctl, |
| 1616 | .fsync = audevrc_fsync, |
| 1617 | }; |
| 1618 | |
| 1619 | struct miscdevice audio_evrc_misc = { |
| 1620 | .minor = MISC_DYNAMIC_MINOR, |
| 1621 | .name = "msm_evrc", |
| 1622 | .fops = &audio_evrc_fops, |
| 1623 | }; |
| 1624 | |
| 1625 | static int __init audevrc_init(void) |
| 1626 | { |
| 1627 | return misc_register(&audio_evrc_misc); |
| 1628 | |
| 1629 | } |
| 1630 | |
| 1631 | static void __exit audevrc_exit(void) |
| 1632 | { |
| 1633 | misc_deregister(&audio_evrc_misc); |
| 1634 | } |
| 1635 | |
| 1636 | module_init(audevrc_init); |
| 1637 | module_exit(audevrc_exit); |
| 1638 | |
| 1639 | MODULE_DESCRIPTION("MSM EVRC driver"); |
| 1640 | MODULE_LICENSE("GPL v2"); |