Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1 | /* mp3 audio output device |
| 2 | * |
| 3 | * Copyright (C) 2008 Google, Inc. |
| 4 | * Copyright (C) 2008 HTC Corporation |
Duy Truong | 790f06d | 2013-02-13 16:38:12 -0800 | [diff] [blame] | 5 | * Copyright (c) 2009-2012, The Linux Foundation. All rights reserved. |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 6 | * |
| 7 | * This software is licensed under the terms of the GNU General Public |
| 8 | * License version 2, as published by the Free Software Foundation, and |
| 9 | * may be copied, distributed, and modified under those terms. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | */ |
| 17 | |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 18 | #include <asm/atomic.h> |
| 19 | #include <asm/ioctls.h> |
| 20 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 21 | #include <linux/module.h> |
| 22 | #include <linux/fs.h> |
| 23 | #include <linux/miscdevice.h> |
| 24 | #include <linux/uaccess.h> |
| 25 | #include <linux/kthread.h> |
| 26 | #include <linux/wait.h> |
| 27 | #include <linux/dma-mapping.h> |
| 28 | #include <linux/debugfs.h> |
| 29 | #include <linux/delay.h> |
| 30 | #include <linux/earlysuspend.h> |
| 31 | #include <linux/list.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 32 | #include <linux/slab.h> |
| 33 | #include <linux/memory_alloc.h> |
| 34 | #include <linux/msm_audio.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 35 | #include <mach/msm_adsp.h> |
| 36 | |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 37 | #include <mach/iommu.h> |
| 38 | #include <mach/iommu_domains.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 39 | #include <mach/qdsp5v2/audio_dev_ctl.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 40 | #include <mach/qdsp5v2/qdsp5audppmsg.h> |
| 41 | #include <mach/qdsp5v2/qdsp5audplaycmdi.h> |
| 42 | #include <mach/qdsp5v2/qdsp5audplaymsg.h> |
| 43 | #include <mach/qdsp5v2/audio_dev_ctl.h> |
| 44 | #include <mach/qdsp5v2/audpp.h> |
| 45 | #include <mach/debug_mm.h> |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 46 | #include <mach/msm_memtypes.h> |
| 47 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 48 | #define ADRV_STATUS_AIO_INTF 0x00000001 |
| 49 | #define ADRV_STATUS_OBUF_GIVEN 0x00000002 |
| 50 | #define ADRV_STATUS_IBUF_GIVEN 0x00000004 |
| 51 | #define ADRV_STATUS_FSYNC 0x00000008 |
| 52 | |
| 53 | /* Size must be power of 2 */ |
| 54 | #define BUFSZ_MAX 32768 |
| 55 | #define BUFSZ_MIN 4096 |
| 56 | #define DMASZ_MAX (BUFSZ_MAX * 2) |
| 57 | #define DMASZ_MIN (BUFSZ_MIN * 2) |
| 58 | |
| 59 | #define AUDPLAY_INVALID_READ_PTR_OFFSET 0xFFFF |
| 60 | #define AUDDEC_DEC_MP3 2 |
| 61 | |
| 62 | #define PCM_BUFSZ_MIN 4800 /* Hold one stereo MP3 frame */ |
| 63 | #define PCM_BUF_MAX_COUNT 5 /* DSP only accepts 5 buffers at most |
| 64 | but support 2 buffers currently */ |
| 65 | #define ROUTING_MODE_FTRT 1 |
| 66 | #define ROUTING_MODE_RT 2 |
| 67 | /* Decoder status received from AUDPPTASK */ |
| 68 | #define AUDPP_DEC_STATUS_SLEEP 0 |
| 69 | #define AUDPP_DEC_STATUS_INIT 1 |
| 70 | #define AUDPP_DEC_STATUS_CFG 2 |
| 71 | #define AUDPP_DEC_STATUS_PLAY 3 |
| 72 | |
| 73 | #define AUDMP3_METAFIELD_MASK 0xFFFF0000 |
| 74 | #define AUDMP3_EOS_FLG_OFFSET 0x0A /* Offset from beginning of buffer */ |
| 75 | #define AUDMP3_EOS_FLG_MASK 0x01 |
| 76 | #define AUDMP3_EOS_NONE 0x0 /* No EOS detected */ |
| 77 | #define AUDMP3_EOS_SET 0x1 /* EOS set in meta field */ |
| 78 | |
| 79 | #define AUDMP3_EVENT_NUM 10 /* Default number of pre-allocated event packets */ |
| 80 | |
| 81 | #define BITSTREAM_ERROR_THRESHOLD_VALUE 0x1 /* DEFAULT THRESHOLD VALUE */ |
| 82 | |
| 83 | #define __CONTAINS(r, v, l) ({ \ |
| 84 | typeof(r) __r = r; \ |
| 85 | typeof(v) __v = v; \ |
| 86 | typeof(v) __e = __v + l; \ |
| 87 | int res = ((__v >= __r->vaddr) && \ |
| 88 | (__e <= __r->vaddr + __r->len)); \ |
| 89 | res; \ |
| 90 | }) |
| 91 | |
| 92 | #define CONTAINS(r1, r2) ({ \ |
| 93 | typeof(r2) __r2 = r2; \ |
| 94 | __CONTAINS(r1, __r2->vaddr, __r2->len); \ |
| 95 | }) |
| 96 | |
| 97 | #define IN_RANGE(r, v) ({ \ |
| 98 | typeof(r) __r = r; \ |
| 99 | typeof(v) __vv = v; \ |
| 100 | int res = ((__vv >= __r->vaddr) && \ |
| 101 | (__vv < (__r->vaddr + __r->len))); \ |
| 102 | res; \ |
| 103 | }) |
| 104 | |
| 105 | #define OVERLAPS(r1, r2) ({ \ |
| 106 | typeof(r1) __r1 = r1; \ |
| 107 | typeof(r2) __r2 = r2; \ |
| 108 | typeof(__r2->vaddr) __v = __r2->vaddr; \ |
| 109 | typeof(__v) __e = __v + __r2->len - 1; \ |
| 110 | int res = (IN_RANGE(__r1, __v) || IN_RANGE(__r1, __e)); \ |
| 111 | res; \ |
| 112 | }) |
Vinay Vaka | 051db72 | 2012-01-24 19:48:32 +0530 | [diff] [blame] | 113 | struct audio; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 114 | |
| 115 | struct buffer { |
| 116 | void *data; |
| 117 | unsigned size; |
| 118 | unsigned used; /* Input usage actual DSP produced PCM size */ |
| 119 | unsigned addr; |
| 120 | unsigned short mfield_sz; /*only useful for data has meta field */ |
| 121 | }; |
| 122 | |
| 123 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 124 | struct audmp3_suspend_ctl { |
| 125 | struct early_suspend node; |
| 126 | struct audio *audio; |
| 127 | }; |
| 128 | #endif |
| 129 | |
| 130 | struct audmp3_event { |
| 131 | struct list_head list; |
| 132 | int event_type; |
| 133 | union msm_audio_event_payload payload; |
| 134 | }; |
| 135 | |
| 136 | struct audmp3_pmem_region { |
| 137 | struct list_head list; |
| 138 | struct file *file; |
| 139 | int fd; |
| 140 | void *vaddr; |
| 141 | unsigned long paddr; |
| 142 | unsigned long kvaddr; |
| 143 | unsigned long len; |
| 144 | unsigned ref_cnt; |
| 145 | }; |
| 146 | |
| 147 | struct audmp3_buffer_node { |
| 148 | struct list_head list; |
| 149 | struct msm_audio_aio_buf buf; |
| 150 | unsigned long paddr; |
| 151 | }; |
| 152 | |
| 153 | struct audmp3_drv_operations { |
| 154 | void (*pcm_buf_update)(struct audio *, uint32_t *); |
| 155 | void (*buffer_refresh)(struct audio *); |
| 156 | void (*send_data)(struct audio *, unsigned); |
| 157 | void (*out_flush)(struct audio *); |
| 158 | void (*in_flush)(struct audio *); |
| 159 | int (*fsync)(struct audio *); |
| 160 | }; |
| 161 | |
| 162 | struct audio { |
| 163 | struct buffer out[2]; |
| 164 | |
| 165 | spinlock_t dsp_lock; |
| 166 | |
| 167 | uint8_t out_head; |
| 168 | uint8_t out_tail; |
| 169 | uint8_t out_needed; /* number of buffers the dsp is waiting for */ |
| 170 | unsigned out_dma_sz; |
| 171 | struct list_head out_queue; /* queue to retain output buffers */ |
| 172 | atomic_t out_bytes; |
| 173 | |
| 174 | struct mutex lock; |
| 175 | struct mutex write_lock; |
| 176 | wait_queue_head_t write_wait; |
| 177 | |
| 178 | /* Host PCM section */ |
| 179 | struct buffer in[PCM_BUF_MAX_COUNT]; |
| 180 | struct mutex read_lock; |
| 181 | wait_queue_head_t read_wait; /* Wait queue for read */ |
| 182 | char *read_data; /* pointer to reader buffer */ |
| 183 | int32_t read_phys; /* physical address of reader buffer */ |
| 184 | uint8_t read_next; /* index to input buffers to be read next */ |
| 185 | uint8_t fill_next; /* index to buffer that DSP should be filling */ |
| 186 | uint8_t pcm_buf_count; /* number of pcm buffer allocated */ |
| 187 | struct list_head in_queue; /* queue to retain input buffers */ |
| 188 | /* ---- End of Host PCM section */ |
| 189 | |
| 190 | struct msm_adsp_module *audplay; |
| 191 | |
| 192 | /* configuration to use on next enable */ |
| 193 | uint32_t out_sample_rate; |
| 194 | uint32_t out_channel_mode; |
| 195 | |
| 196 | /* data allocated for various buffers */ |
| 197 | char *data; |
| 198 | int32_t phys; /* physical address of write buffer */ |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 199 | void *map_v_read; |
| 200 | void *map_v_write; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 201 | |
| 202 | uint32_t drv_status; |
| 203 | int mfield; /* meta field embedded in data */ |
| 204 | int rflush; /* Read flush */ |
| 205 | int wflush; /* Write flush */ |
| 206 | int opened; |
| 207 | int enabled; |
| 208 | int running; |
| 209 | int stopped; /* set when stopped, cleared on flush */ |
| 210 | int pcm_feedback; |
| 211 | int buf_refresh; |
| 212 | int teos; /* valid only if tunnel mode & no data left for decoder */ |
| 213 | enum msm_aud_decoder_state dec_state; /* Represents decoder state */ |
| 214 | int reserved; /* A byte is being reserved */ |
| 215 | char rsv_byte; /* Handle odd length user data */ |
| 216 | |
| 217 | const char *module_name; |
| 218 | unsigned queue_id; |
| 219 | uint16_t dec_id; |
| 220 | uint32_t read_ptr_offset; |
| 221 | int16_t source; |
| 222 | |
| 223 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 224 | struct audmp3_suspend_ctl suspend_ctl; |
| 225 | #endif |
| 226 | |
| 227 | #ifdef CONFIG_DEBUG_FS |
| 228 | struct dentry *dentry; |
| 229 | #endif |
| 230 | |
| 231 | wait_queue_head_t wait; |
| 232 | struct list_head free_event_queue; |
| 233 | struct list_head event_queue; |
| 234 | wait_queue_head_t event_wait; |
| 235 | spinlock_t event_queue_lock; |
| 236 | struct mutex get_event_lock; |
| 237 | int event_abort; |
| 238 | /* AV sync Info */ |
| 239 | int avsync_flag; /* Flag to indicate feedback from DSP */ |
| 240 | wait_queue_head_t avsync_wait;/* Wait queue for AV Sync Message */ |
| 241 | /* flags, 48 bits sample/bytes counter per channel */ |
| 242 | uint16_t avsync[AUDPP_AVSYNC_CH_COUNT * AUDPP_AVSYNC_NUM_WORDS + 1]; |
| 243 | |
| 244 | uint32_t device_events; |
| 245 | |
| 246 | struct list_head pmem_region_queue; /* protected by lock */ |
| 247 | struct audmp3_drv_operations drv_ops; |
| 248 | |
| 249 | struct msm_audio_bitstream_info stream_info; |
| 250 | struct msm_audio_bitstream_error_info bitstream_error_info; |
| 251 | uint32_t bitstream_error_threshold_value; |
| 252 | |
| 253 | int eq_enable; |
| 254 | int eq_needs_commit; |
| 255 | struct audpp_cmd_cfg_object_params_eqalizer eq; |
| 256 | struct audpp_cmd_cfg_object_params_volume vol_pan; |
| 257 | }; |
| 258 | |
| 259 | static int auddec_dsp_config(struct audio *audio, int enable); |
| 260 | static void audpp_cmd_cfg_adec_params(struct audio *audio); |
| 261 | static void audpp_cmd_cfg_routing_mode(struct audio *audio); |
| 262 | static void audplay_send_data(struct audio *audio, unsigned needed); |
| 263 | static void audplay_error_threshold_config(struct audio *audio); |
| 264 | static void audplay_config_hostpcm(struct audio *audio); |
| 265 | static void audplay_buffer_refresh(struct audio *audio); |
| 266 | static void audio_dsp_event(void *private, unsigned id, uint16_t *msg); |
| 267 | static void audmp3_post_event(struct audio *audio, int type, |
| 268 | union msm_audio_event_payload payload); |
| 269 | static unsigned long audmp3_pmem_fixup(struct audio *audio, void *addr, |
| 270 | unsigned long len, int ref_up); |
| 271 | |
| 272 | static void mp3_listner(u32 evt_id, union auddev_evt_data *evt_payload, |
| 273 | void *private_data) |
| 274 | { |
| 275 | struct audio *audio = (struct audio *) private_data; |
| 276 | switch (evt_id) { |
| 277 | case AUDDEV_EVT_DEV_RDY: |
| 278 | MM_DBG(":AUDDEV_EVT_DEV_RDY\n"); |
| 279 | audio->source |= (0x1 << evt_payload->routing_id); |
| 280 | if (audio->running == 1 && audio->enabled == 1) |
| 281 | audpp_route_stream(audio->dec_id, audio->source); |
| 282 | |
| 283 | break; |
| 284 | case AUDDEV_EVT_DEV_RLS: |
| 285 | MM_DBG(":AUDDEV_EVT_DEV_RLS\n"); |
| 286 | audio->source &= ~(0x1 << evt_payload->routing_id); |
| 287 | if (audio->running == 1 && audio->enabled == 1) |
| 288 | audpp_route_stream(audio->dec_id, audio->source); |
| 289 | break; |
| 290 | case AUDDEV_EVT_STREAM_VOL_CHG: |
| 291 | audio->vol_pan.volume = evt_payload->session_vol; |
| 292 | MM_DBG(":AUDDEV_EVT_STREAM_VOL_CHG, stream vol %d\n", |
| 293 | audio->vol_pan.volume); |
| 294 | if (audio->running) |
| 295 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 296 | POPP); |
| 297 | break; |
| 298 | default: |
| 299 | MM_ERR(":ERROR:wrong event\n"); |
| 300 | break; |
| 301 | } |
| 302 | } |
| 303 | /* must be called with audio->lock held */ |
| 304 | static int audio_enable(struct audio *audio) |
| 305 | { |
| 306 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 307 | |
| 308 | if (audio->enabled) |
| 309 | return 0; |
| 310 | |
| 311 | audio->dec_state = MSM_AUD_DECODER_STATE_NONE; |
| 312 | audio->out_tail = 0; |
| 313 | audio->out_needed = 0; |
| 314 | |
| 315 | if (msm_adsp_enable(audio->audplay)) { |
| 316 | MM_ERR("msm_adsp_enable(audplay) failed\n"); |
| 317 | return -ENODEV; |
| 318 | } |
| 319 | |
| 320 | if (audpp_enable(audio->dec_id, audio_dsp_event, audio)) { |
| 321 | MM_ERR("audpp_enable() failed\n"); |
| 322 | msm_adsp_disable(audio->audplay); |
| 323 | return -ENODEV; |
| 324 | } |
| 325 | |
| 326 | audio->enabled = 1; |
| 327 | return 0; |
| 328 | } |
| 329 | |
| 330 | /* must be called with audio->lock held */ |
| 331 | static int audio_disable(struct audio *audio) |
| 332 | { |
| 333 | int rc = 0; |
| 334 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 335 | if (audio->enabled) { |
| 336 | audio->enabled = 0; |
| 337 | audio->dec_state = MSM_AUD_DECODER_STATE_NONE; |
| 338 | auddec_dsp_config(audio, 0); |
| 339 | rc = wait_event_interruptible_timeout(audio->wait, |
| 340 | audio->dec_state != MSM_AUD_DECODER_STATE_NONE, |
| 341 | msecs_to_jiffies(MSM_AUD_DECODER_WAIT_MS)); |
| 342 | if (rc == 0) |
| 343 | rc = -ETIMEDOUT; |
| 344 | else if (audio->dec_state != MSM_AUD_DECODER_STATE_CLOSE) |
| 345 | rc = -EFAULT; |
| 346 | else |
| 347 | rc = 0; |
| 348 | wake_up(&audio->write_wait); |
| 349 | wake_up(&audio->read_wait); |
| 350 | msm_adsp_disable(audio->audplay); |
| 351 | audpp_disable(audio->dec_id, audio); |
| 352 | audio->out_needed = 0; |
| 353 | } |
| 354 | return rc; |
| 355 | } |
| 356 | |
| 357 | /* ------------------- dsp --------------------- */ |
| 358 | static void audmp3_async_pcm_buf_update(struct audio *audio, uint32_t *payload) |
| 359 | { |
| 360 | unsigned long flags; |
| 361 | union msm_audio_event_payload event_payload; |
| 362 | struct audmp3_buffer_node *filled_buf; |
| 363 | uint8_t index; |
| 364 | |
| 365 | if (audio->rflush) |
| 366 | return; |
| 367 | |
| 368 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 369 | for (index = 0; index < payload[1]; index++) { |
| 370 | BUG_ON(list_empty(&audio->in_queue)); |
| 371 | filled_buf = list_first_entry(&audio->in_queue, |
| 372 | struct audmp3_buffer_node, list); |
| 373 | if (filled_buf->paddr == payload[2 + index * 2]) { |
| 374 | list_del(&filled_buf->list); |
| 375 | event_payload.aio_buf = filled_buf->buf; |
| 376 | event_payload.aio_buf.data_len = |
| 377 | payload[3 + index * 2]; |
| 378 | MM_DBG("pcm buf %p data_len %d\n", filled_buf, |
| 379 | event_payload.aio_buf.data_len); |
| 380 | audmp3_post_event(audio, AUDIO_EVENT_READ_DONE, |
| 381 | event_payload); |
| 382 | kfree(filled_buf); |
| 383 | } else { |
| 384 | MM_ERR("expected=%lx ret=%x\n", filled_buf->paddr, |
| 385 | payload[2 + index * 2]); |
| 386 | break; |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | audio->drv_status &= ~ADRV_STATUS_IBUF_GIVEN; |
| 391 | audio->drv_ops.buffer_refresh(audio); |
| 392 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 393 | |
| 394 | } |
| 395 | |
| 396 | static void audio_update_pcm_buf_entry(struct audio *audio, uint32_t *payload) |
| 397 | { |
| 398 | uint8_t index; |
| 399 | unsigned long flags; |
| 400 | |
| 401 | if (audio->rflush) |
| 402 | return; |
| 403 | |
| 404 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 405 | for (index = 0; index < payload[1]; index++) { |
| 406 | if (audio->in[audio->fill_next].addr == |
| 407 | payload[2 + index * 2]) { |
| 408 | MM_DBG("in[%d] ready\n", audio->fill_next); |
| 409 | audio->in[audio->fill_next].used = |
| 410 | payload[3 + index * 2]; |
| 411 | if ((++audio->fill_next) == audio->pcm_buf_count) |
| 412 | audio->fill_next = 0; |
| 413 | |
| 414 | } else { |
| 415 | MM_ERR("expected=%x ret=%x\n", |
| 416 | audio->in[audio->fill_next].addr, |
| 417 | payload[2 + index * 2]); |
| 418 | break; |
| 419 | } |
| 420 | } |
| 421 | if (audio->in[audio->fill_next].used == 0) { |
| 422 | audio->drv_ops.buffer_refresh(audio); |
| 423 | } else { |
| 424 | MM_DBG("read cannot keep up\n"); |
| 425 | audio->buf_refresh = 1; |
| 426 | } |
| 427 | wake_up(&audio->read_wait); |
| 428 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 429 | |
| 430 | } |
| 431 | |
| 432 | static void audmp3_bitstream_error_info(struct audio *audio, uint32_t *payload) |
| 433 | { |
| 434 | unsigned long flags; |
| 435 | union msm_audio_event_payload e_payload; |
| 436 | |
| 437 | if (payload[0] != AUDDEC_DEC_MP3) { |
| 438 | MM_ERR("Unexpected bitstream error info from DSP:\ |
| 439 | Invalid decoder\n"); |
| 440 | return; |
| 441 | } |
| 442 | |
| 443 | /* get stream info from DSP msg */ |
| 444 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 445 | |
| 446 | audio->bitstream_error_info.dec_id = payload[0]; |
| 447 | audio->bitstream_error_info.err_msg_indicator = payload[1]; |
| 448 | audio->bitstream_error_info.err_type = payload[2]; |
| 449 | |
| 450 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 451 | MM_ERR("bit_stream_error_type=%d error_count=%d\n", |
| 452 | audio->bitstream_error_info.err_type, (0x0000FFFF & |
| 453 | audio->bitstream_error_info.err_msg_indicator)); |
| 454 | |
| 455 | /* send event to ARM to notify error info coming */ |
| 456 | e_payload.error_info = audio->bitstream_error_info; |
| 457 | audmp3_post_event(audio, AUDIO_EVENT_BITSTREAM_ERROR_INFO, e_payload); |
| 458 | } |
| 459 | |
| 460 | static void audmp3_update_stream_info(struct audio *audio, uint32_t *payload) |
| 461 | { |
| 462 | unsigned long flags; |
| 463 | union msm_audio_event_payload e_payload; |
| 464 | |
| 465 | /* get stream info from DSP msg */ |
| 466 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 467 | |
| 468 | audio->stream_info.codec_type = AUDIO_CODEC_TYPE_MP3; |
| 469 | audio->stream_info.chan_info = (0x0000FFFF & payload[1]); |
| 470 | audio->stream_info.sample_rate = (0x0000FFFF & payload[2]); |
| 471 | audio->stream_info.bit_stream_info = (0x0000FFFF & payload[3]); |
| 472 | audio->stream_info.bit_rate = payload[4]; |
| 473 | |
| 474 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 475 | MM_DBG("chan_info=%d, sample_rate=%d, bit_stream_info=%d\n", |
| 476 | audio->stream_info.chan_info, |
| 477 | audio->stream_info.sample_rate, |
| 478 | audio->stream_info.bit_stream_info); |
| 479 | |
| 480 | /* send event to ARM to notify steam info coming */ |
| 481 | e_payload.stream_info = audio->stream_info; |
| 482 | audmp3_post_event(audio, AUDIO_EVENT_STREAM_INFO, e_payload); |
| 483 | } |
| 484 | |
| 485 | static void audplay_dsp_event(void *data, unsigned id, size_t len, |
| 486 | void (*getevent) (void *ptr, size_t len)) |
| 487 | { |
| 488 | struct audio *audio = data; |
| 489 | uint32_t msg[28]; |
| 490 | getevent(msg, sizeof(msg)); |
| 491 | |
| 492 | MM_DBG("msg_id=%x\n", id); |
| 493 | |
| 494 | switch (id) { |
| 495 | case AUDPLAY_MSG_DEC_NEEDS_DATA: |
| 496 | audio->drv_ops.send_data(audio, 1); |
| 497 | break; |
| 498 | |
| 499 | case AUDPLAY_MSG_BUFFER_UPDATE: |
| 500 | audio->drv_ops.pcm_buf_update(audio, msg); |
| 501 | break; |
| 502 | |
| 503 | case AUDPLAY_UP_STREAM_INFO: |
| 504 | if ((msg[1] & AUDPLAY_STREAM_INFO_MSG_MASK) == |
| 505 | AUDPLAY_STREAM_INFO_MSG_MASK) { |
| 506 | audmp3_bitstream_error_info(audio, msg); |
| 507 | } else { |
| 508 | audmp3_update_stream_info(audio, msg); |
| 509 | } |
| 510 | break; |
| 511 | |
| 512 | case AUDPLAY_UP_OUTPORT_FLUSH_ACK: |
| 513 | MM_DBG("OUTPORT_FLUSH_ACK\n"); |
| 514 | audio->rflush = 0; |
| 515 | wake_up(&audio->read_wait); |
| 516 | if (audio->pcm_feedback) |
| 517 | audio->drv_ops.buffer_refresh(audio); |
| 518 | break; |
| 519 | |
| 520 | case ADSP_MESSAGE_ID: |
| 521 | MM_DBG("Received ADSP event: module enable(audplaytask)\n"); |
| 522 | break; |
| 523 | |
| 524 | default: |
| 525 | MM_ERR("unexpected message from decoder \n"); |
| 526 | break; |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | static void audio_dsp_event(void *private, unsigned id, uint16_t *msg) |
| 531 | { |
| 532 | struct audio *audio = private; |
| 533 | |
| 534 | switch (id) { |
| 535 | case AUDPP_MSG_STATUS_MSG:{ |
| 536 | unsigned status = msg[1]; |
| 537 | |
| 538 | switch (status) { |
| 539 | case AUDPP_DEC_STATUS_SLEEP: { |
| 540 | uint16_t reason = msg[2]; |
| 541 | MM_DBG("decoder status: sleep reason=0x%04x\n", |
| 542 | reason); |
| 543 | if ((reason == AUDPP_MSG_REASON_MEM) |
| 544 | || (reason == |
| 545 | AUDPP_MSG_REASON_NODECODER)) { |
| 546 | audio->dec_state = |
| 547 | MSM_AUD_DECODER_STATE_FAILURE; |
| 548 | wake_up(&audio->wait); |
| 549 | } else if (reason == AUDPP_MSG_REASON_NONE) { |
| 550 | /* decoder is in disable state */ |
| 551 | audio->dec_state = |
| 552 | MSM_AUD_DECODER_STATE_CLOSE; |
| 553 | wake_up(&audio->wait); |
| 554 | } |
| 555 | break; |
| 556 | } |
| 557 | case AUDPP_DEC_STATUS_INIT: |
| 558 | MM_DBG("decoder status: init \n"); |
| 559 | if (audio->pcm_feedback) |
| 560 | audpp_cmd_cfg_routing_mode(audio); |
| 561 | else |
| 562 | audpp_cmd_cfg_adec_params(audio); |
| 563 | break; |
| 564 | |
| 565 | case AUDPP_DEC_STATUS_CFG: |
| 566 | MM_DBG("decoder status: cfg \n"); |
| 567 | break; |
| 568 | case AUDPP_DEC_STATUS_PLAY: |
| 569 | MM_DBG("decoder status: play \n"); |
| 570 | /* send mixer command */ |
| 571 | audpp_route_stream(audio->dec_id, |
| 572 | audio->source); |
| 573 | if (audio->pcm_feedback) { |
| 574 | audplay_error_threshold_config(audio); |
| 575 | audplay_config_hostpcm(audio); |
| 576 | audio->drv_ops.buffer_refresh(audio); |
| 577 | } |
| 578 | audio->dec_state = |
| 579 | MSM_AUD_DECODER_STATE_SUCCESS; |
| 580 | wake_up(&audio->wait); |
| 581 | break; |
| 582 | default: |
| 583 | MM_ERR("unknown decoder status \n"); |
| 584 | break; |
| 585 | } |
| 586 | break; |
| 587 | } |
| 588 | case AUDPP_MSG_CFG_MSG: |
| 589 | if (msg[0] == AUDPP_MSG_ENA_ENA) { |
| 590 | MM_DBG("CFG_MSG ENABLE\n"); |
| 591 | auddec_dsp_config(audio, 1); |
| 592 | audio->out_needed = 0; |
| 593 | audio->running = 1; |
| 594 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 595 | POPP); |
| 596 | audpp_dsp_set_eq(audio->dec_id, audio->eq_enable, |
| 597 | &audio->eq, POPP); |
| 598 | } else if (msg[0] == AUDPP_MSG_ENA_DIS) { |
| 599 | MM_DBG("CFG_MSG DISABLE\n"); |
| 600 | audio->running = 0; |
| 601 | } else { |
| 602 | MM_DBG("CFG_MSG %d?\n", msg[0]); |
| 603 | } |
| 604 | break; |
| 605 | case AUDPP_MSG_ROUTING_ACK: |
| 606 | MM_DBG("ROUTING_ACK mode=%d\n", msg[1]); |
| 607 | audpp_cmd_cfg_adec_params(audio); |
| 608 | break; |
| 609 | |
| 610 | case AUDPP_MSG_FLUSH_ACK: |
| 611 | MM_DBG("FLUSH_ACK\n"); |
| 612 | audio->wflush = 0; |
| 613 | audio->rflush = 0; |
| 614 | wake_up(&audio->write_wait); |
| 615 | if (audio->pcm_feedback) |
| 616 | audio->drv_ops.buffer_refresh(audio); |
| 617 | break; |
| 618 | |
| 619 | case AUDPP_MSG_PCMDMAMISSED: |
| 620 | MM_DBG("PCMDMAMISSED\n"); |
| 621 | audio->teos = 1; |
| 622 | wake_up(&audio->write_wait); |
| 623 | break; |
| 624 | |
| 625 | case AUDPP_MSG_AVSYNC_MSG: |
| 626 | MM_DBG("AUDPP_MSG_AVSYNC_MSG\n"); |
| 627 | memcpy(&audio->avsync[0], msg, sizeof(audio->avsync)); |
| 628 | audio->avsync_flag = 1; |
| 629 | wake_up(&audio->avsync_wait); |
| 630 | break; |
| 631 | |
| 632 | default: |
| 633 | MM_ERR("UNKNOWN (%d)\n", id); |
| 634 | } |
| 635 | |
| 636 | } |
| 637 | |
| 638 | |
| 639 | struct msm_adsp_ops audplay_adsp_ops = { |
| 640 | .event = audplay_dsp_event, |
| 641 | }; |
| 642 | |
| 643 | |
| 644 | #define audplay_send_queue0(audio, cmd, len) \ |
| 645 | msm_adsp_write(audio->audplay, audio->queue_id, \ |
| 646 | cmd, len) |
| 647 | |
| 648 | static int auddec_dsp_config(struct audio *audio, int enable) |
| 649 | { |
| 650 | struct audpp_cmd_cfg_dec_type cfg_dec_cmd; |
| 651 | |
| 652 | memset(&cfg_dec_cmd, 0, sizeof(cfg_dec_cmd)); |
| 653 | |
| 654 | cfg_dec_cmd.cmd_id = AUDPP_CMD_CFG_DEC_TYPE; |
| 655 | if (enable) |
| 656 | cfg_dec_cmd.dec_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | |
| 657 | AUDPP_CMD_ENA_DEC_V | AUDDEC_DEC_MP3; |
| 658 | else |
| 659 | cfg_dec_cmd.dec_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | |
| 660 | AUDPP_CMD_DIS_DEC_V; |
| 661 | cfg_dec_cmd.dm_mode = 0x0; |
| 662 | cfg_dec_cmd.stream_id = audio->dec_id; |
| 663 | return audpp_send_queue1(&cfg_dec_cmd, sizeof(cfg_dec_cmd)); |
| 664 | } |
| 665 | |
| 666 | static void audpp_cmd_cfg_adec_params(struct audio *audio) |
| 667 | { |
| 668 | struct audpp_cmd_cfg_adec_params_mp3 cmd; |
| 669 | |
| 670 | memset(&cmd, 0, sizeof(cmd)); |
| 671 | cmd.common.cmd_id = AUDPP_CMD_CFG_ADEC_PARAMS; |
| 672 | cmd.common.length = AUDPP_CMD_CFG_ADEC_PARAMS_MP3_LEN; |
| 673 | cmd.common.dec_id = audio->dec_id; |
| 674 | cmd.common.input_sampling_frequency = audio->out_sample_rate; |
| 675 | |
| 676 | audpp_send_queue2(&cmd, sizeof(cmd)); |
| 677 | } |
| 678 | |
| 679 | static void audpp_cmd_cfg_routing_mode(struct audio *audio) |
| 680 | { |
| 681 | struct audpp_cmd_routing_mode cmd; |
| 682 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 683 | memset(&cmd, 0, sizeof(cmd)); |
| 684 | cmd.cmd_id = AUDPP_CMD_ROUTING_MODE; |
| 685 | cmd.object_number = audio->dec_id; |
| 686 | if (audio->pcm_feedback) |
| 687 | cmd.routing_mode = ROUTING_MODE_FTRT; |
| 688 | else |
| 689 | cmd.routing_mode = ROUTING_MODE_RT; |
| 690 | |
| 691 | audpp_send_queue1(&cmd, sizeof(cmd)); |
| 692 | } |
| 693 | |
| 694 | static int audplay_dsp_send_data_avail(struct audio *audio, |
| 695 | unsigned idx, unsigned len) |
| 696 | { |
| 697 | struct audplay_cmd_bitstream_data_avail_nt2 cmd; |
| 698 | |
| 699 | cmd.cmd_id = AUDPLAY_CMD_BITSTREAM_DATA_AVAIL_NT2; |
| 700 | if (audio->mfield) |
| 701 | cmd.decoder_id = AUDMP3_METAFIELD_MASK | |
| 702 | (audio->out[idx].mfield_sz >> 1); |
| 703 | else |
| 704 | cmd.decoder_id = audio->dec_id; |
| 705 | cmd.buf_ptr = audio->out[idx].addr; |
| 706 | cmd.buf_size = len/2; |
| 707 | cmd.partition_number = 0; |
| 708 | return audplay_send_queue0(audio, &cmd, sizeof(cmd)); |
| 709 | } |
| 710 | /* Caller holds irq_lock */ |
| 711 | static void audmp3_async_buffer_refresh(struct audio *audio) |
| 712 | { |
| 713 | struct audplay_cmd_buffer_refresh refresh_cmd; |
| 714 | struct audmp3_buffer_node *next_buf; |
| 715 | |
| 716 | if (!audio->running || |
| 717 | audio->drv_status & ADRV_STATUS_IBUF_GIVEN) |
| 718 | return; |
| 719 | |
| 720 | if (!list_empty(&audio->in_queue)) { |
| 721 | next_buf = list_first_entry(&audio->in_queue, |
| 722 | struct audmp3_buffer_node, list); |
| 723 | if (!next_buf) |
| 724 | return; |
| 725 | MM_DBG("next buf %p phy %lx len %d\n", next_buf, |
| 726 | next_buf->paddr, next_buf->buf.buf_len); |
| 727 | refresh_cmd.cmd_id = AUDPLAY_CMD_BUFFER_REFRESH; |
| 728 | refresh_cmd.num_buffers = 1; |
| 729 | refresh_cmd.buf0_address = next_buf->paddr; |
| 730 | refresh_cmd.buf0_length = next_buf->buf.buf_len - |
| 731 | (next_buf->buf.buf_len % 576) + |
| 732 | (audio->mfield ? 24 : 0); /* Mp3 frame size */ |
| 733 | refresh_cmd.buf_read_count = 0; |
| 734 | audio->drv_status |= ADRV_STATUS_IBUF_GIVEN; |
| 735 | (void) audplay_send_queue0(audio, &refresh_cmd, |
| 736 | sizeof(refresh_cmd)); |
| 737 | } |
| 738 | |
| 739 | } |
| 740 | |
| 741 | static void audplay_buffer_refresh(struct audio *audio) |
| 742 | { |
| 743 | struct audplay_cmd_buffer_refresh refresh_cmd; |
| 744 | |
| 745 | refresh_cmd.cmd_id = AUDPLAY_CMD_BUFFER_REFRESH; |
| 746 | refresh_cmd.num_buffers = 1; |
| 747 | refresh_cmd.buf0_address = audio->in[audio->fill_next].addr; |
| 748 | refresh_cmd.buf0_length = audio->in[audio->fill_next].size - |
| 749 | (audio->in[audio->fill_next].size % 576) + |
| 750 | (audio->mfield ? 24 : 0); /* Mp3 frame size */ |
| 751 | refresh_cmd.buf_read_count = 0; |
| 752 | MM_DBG("buf0_addr=%x buf0_len=%d\n", refresh_cmd.buf0_address, |
| 753 | refresh_cmd.buf0_length); |
| 754 | (void)audplay_send_queue0(audio, &refresh_cmd, sizeof(refresh_cmd)); |
| 755 | } |
| 756 | |
| 757 | static void audplay_error_threshold_config(struct audio *audio) |
| 758 | { |
| 759 | union audplay_cmd_channel_info ch_cfg_cmd; |
| 760 | |
| 761 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 762 | ch_cfg_cmd.thr_update.cmd_id = AUDPLAY_CMD_CHANNEL_INFO; |
| 763 | ch_cfg_cmd.thr_update.threshold_update = AUDPLAY_ERROR_THRESHOLD_ENABLE; |
| 764 | ch_cfg_cmd.thr_update.threshold_value = |
| 765 | audio->bitstream_error_threshold_value; |
| 766 | (void)audplay_send_queue0(audio, &ch_cfg_cmd, sizeof(ch_cfg_cmd)); |
| 767 | } |
| 768 | |
| 769 | static void audplay_config_hostpcm(struct audio *audio) |
| 770 | { |
| 771 | struct audplay_cmd_hpcm_buf_cfg cfg_cmd; |
| 772 | |
| 773 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 774 | cfg_cmd.cmd_id = AUDPLAY_CMD_HPCM_BUF_CFG; |
| 775 | cfg_cmd.max_buffers = 1; |
| 776 | cfg_cmd.byte_swap = 0; |
| 777 | cfg_cmd.hostpcm_config = (0x8000) | (0x4000); |
| 778 | cfg_cmd.feedback_frequency = 1; |
| 779 | cfg_cmd.partition_number = 0; |
| 780 | (void)audplay_send_queue0(audio, &cfg_cmd, sizeof(cfg_cmd)); |
| 781 | |
| 782 | } |
| 783 | |
| 784 | static void audplay_outport_flush(struct audio *audio) |
| 785 | { |
| 786 | struct audplay_cmd_outport_flush op_flush_cmd; |
| 787 | |
| 788 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 789 | op_flush_cmd.cmd_id = AUDPLAY_CMD_OUTPORT_FLUSH; |
| 790 | (void)audplay_send_queue0(audio, &op_flush_cmd, sizeof(op_flush_cmd)); |
| 791 | } |
| 792 | |
| 793 | static void audmp3_async_send_data(struct audio *audio, unsigned needed) |
| 794 | { |
| 795 | unsigned long flags; |
| 796 | |
| 797 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 798 | if (!audio->running) |
| 799 | goto done; |
| 800 | |
| 801 | if (needed && !audio->wflush) { |
| 802 | audio->out_needed = 1; |
| 803 | if (audio->drv_status & ADRV_STATUS_OBUF_GIVEN) { |
| 804 | /* pop one node out of queue */ |
| 805 | union msm_audio_event_payload payload; |
| 806 | struct audmp3_buffer_node *used_buf; |
| 807 | |
| 808 | MM_DBG("consumed\n"); |
| 809 | BUG_ON(list_empty(&audio->out_queue)); |
| 810 | used_buf = list_first_entry(&audio->out_queue, |
| 811 | struct audmp3_buffer_node, list); |
| 812 | list_del(&used_buf->list); |
| 813 | payload.aio_buf = used_buf->buf; |
| 814 | audmp3_post_event(audio, AUDIO_EVENT_WRITE_DONE, |
| 815 | payload); |
| 816 | kfree(used_buf); |
| 817 | audio->drv_status &= ~ADRV_STATUS_OBUF_GIVEN; |
| 818 | } |
| 819 | |
| 820 | } |
| 821 | |
| 822 | if (audio->out_needed) { |
| 823 | struct audmp3_buffer_node *next_buf; |
| 824 | struct audplay_cmd_bitstream_data_avail_nt2 cmd; |
| 825 | if (!list_empty(&audio->out_queue)) { |
| 826 | next_buf = list_first_entry(&audio->out_queue, |
| 827 | struct audmp3_buffer_node, list); |
| 828 | MM_DBG("next_buf %p\n", next_buf); |
| 829 | if (next_buf) { |
| 830 | MM_DBG("next buf phy %lx len %d\n", |
| 831 | next_buf->paddr, |
| 832 | next_buf->buf.data_len); |
| 833 | |
| 834 | cmd.cmd_id = |
| 835 | AUDPLAY_CMD_BITSTREAM_DATA_AVAIL_NT2; |
| 836 | if (audio->mfield) |
| 837 | cmd.decoder_id = AUDMP3_METAFIELD_MASK | |
| 838 | (next_buf->buf.mfield_sz >> 1); |
| 839 | else |
| 840 | cmd.decoder_id = audio->dec_id; |
| 841 | cmd.buf_ptr = (unsigned) next_buf->paddr; |
| 842 | cmd.buf_size = next_buf->buf.data_len >> 1; |
| 843 | cmd.partition_number = 0; |
| 844 | audplay_send_queue0(audio, &cmd, sizeof(cmd)); |
| 845 | audio->out_needed = 0; |
| 846 | audio->drv_status |= ADRV_STATUS_OBUF_GIVEN; |
| 847 | } |
| 848 | } |
| 849 | } |
| 850 | |
| 851 | done: |
| 852 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 853 | } |
| 854 | |
| 855 | static void audplay_send_data(struct audio *audio, unsigned needed) |
| 856 | { |
| 857 | struct buffer *frame; |
| 858 | unsigned long flags; |
| 859 | |
| 860 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 861 | if (!audio->running) |
| 862 | goto done; |
| 863 | |
| 864 | if (needed && !audio->wflush) { |
| 865 | /* We were called from the callback because the DSP |
| 866 | * requested more data. Note that the DSP does want |
| 867 | * more data, and if a buffer was in-flight, mark it |
| 868 | * as available (since the DSP must now be done with |
| 869 | * it). |
| 870 | */ |
| 871 | audio->out_needed = 1; |
| 872 | frame = audio->out + audio->out_tail; |
| 873 | if (frame->used == 0xffffffff) { |
| 874 | MM_DBG("frame %d free\n", audio->out_tail); |
| 875 | frame->used = 0; |
| 876 | audio->out_tail ^= 1; |
| 877 | wake_up(&audio->write_wait); |
| 878 | } |
| 879 | } |
| 880 | |
| 881 | if (audio->out_needed) { |
| 882 | /* If the DSP currently wants data and we have a |
| 883 | * buffer available, we will send it and reset |
| 884 | * the needed flag. We'll mark the buffer as in-flight |
| 885 | * so that it won't be recycled until the next buffer |
| 886 | * is requested |
| 887 | */ |
| 888 | |
| 889 | frame = audio->out + audio->out_tail; |
| 890 | if (frame->used) { |
| 891 | BUG_ON(frame->used == 0xffffffff); |
| 892 | MM_DBG("frame %d busy\n", audio->out_tail); |
| 893 | audplay_dsp_send_data_avail(audio, audio->out_tail, |
| 894 | frame->used); |
| 895 | frame->used = 0xffffffff; |
| 896 | audio->out_needed = 0; |
| 897 | } |
| 898 | } |
| 899 | done: |
| 900 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 901 | } |
| 902 | |
| 903 | /* ------------------- device --------------------- */ |
| 904 | static void audmp3_async_flush(struct audio *audio) |
| 905 | { |
| 906 | struct audmp3_buffer_node *buf_node; |
| 907 | struct list_head *ptr, *next; |
| 908 | union msm_audio_event_payload payload; |
| 909 | |
| 910 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 911 | list_for_each_safe(ptr, next, &audio->out_queue) { |
| 912 | buf_node = list_entry(ptr, struct audmp3_buffer_node, list); |
| 913 | list_del(&buf_node->list); |
| 914 | payload.aio_buf = buf_node->buf; |
| 915 | audmp3_post_event(audio, AUDIO_EVENT_WRITE_DONE, |
| 916 | payload); |
| 917 | kfree(buf_node); |
| 918 | } |
| 919 | audio->drv_status &= ~ADRV_STATUS_OBUF_GIVEN; |
| 920 | audio->out_needed = 0; |
| 921 | atomic_set(&audio->out_bytes, 0); |
| 922 | } |
| 923 | |
| 924 | static void audio_flush(struct audio *audio) |
| 925 | { |
| 926 | audio->out[0].used = 0; |
| 927 | audio->out[1].used = 0; |
| 928 | audio->out_head = 0; |
| 929 | audio->out_tail = 0; |
| 930 | audio->reserved = 0; |
| 931 | audio->out_needed = 0; |
| 932 | atomic_set(&audio->out_bytes, 0); |
| 933 | } |
| 934 | |
| 935 | static void audmp3_async_flush_pcm_buf(struct audio *audio) |
| 936 | { |
| 937 | struct audmp3_buffer_node *buf_node; |
| 938 | struct list_head *ptr, *next; |
| 939 | union msm_audio_event_payload payload; |
| 940 | |
| 941 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 942 | list_for_each_safe(ptr, next, &audio->in_queue) { |
| 943 | buf_node = list_entry(ptr, struct audmp3_buffer_node, list); |
| 944 | list_del(&buf_node->list); |
| 945 | payload.aio_buf = buf_node->buf; |
| 946 | payload.aio_buf.data_len = 0; |
| 947 | audmp3_post_event(audio, AUDIO_EVENT_READ_DONE, |
| 948 | payload); |
| 949 | kfree(buf_node); |
| 950 | } |
| 951 | audio->drv_status &= ~ADRV_STATUS_IBUF_GIVEN; |
| 952 | |
| 953 | } |
| 954 | |
| 955 | static void audio_flush_pcm_buf(struct audio *audio) |
| 956 | { |
| 957 | uint8_t index; |
| 958 | |
| 959 | for (index = 0; index < PCM_BUF_MAX_COUNT; index++) |
| 960 | audio->in[index].used = 0; |
| 961 | |
| 962 | audio->buf_refresh = 0; |
| 963 | audio->read_next = 0; |
| 964 | audio->fill_next = 0; |
| 965 | } |
| 966 | |
| 967 | static void audio_ioport_reset(struct audio *audio) |
| 968 | { |
| 969 | if (audio->drv_status & ADRV_STATUS_AIO_INTF) { |
| 970 | /* If fsync is in progress, make sure |
| 971 | * return value of fsync indicates |
| 972 | * abort due to flush |
| 973 | */ |
| 974 | if (audio->drv_status & ADRV_STATUS_FSYNC) { |
| 975 | MM_DBG("fsync in progress\n"); |
| 976 | wake_up(&audio->write_wait); |
| 977 | mutex_lock(&audio->write_lock); |
| 978 | audio->drv_ops.out_flush(audio); |
| 979 | mutex_unlock(&audio->write_lock); |
| 980 | } else |
| 981 | audio->drv_ops.out_flush(audio); |
| 982 | audio->drv_ops.in_flush(audio); |
| 983 | } else { |
| 984 | /* Make sure read/write thread are free from |
| 985 | * sleep and knowing that system is not able |
| 986 | * to process io request at the moment |
| 987 | */ |
| 988 | wake_up(&audio->write_wait); |
| 989 | mutex_lock(&audio->write_lock); |
| 990 | audio->drv_ops.out_flush(audio); |
| 991 | mutex_unlock(&audio->write_lock); |
| 992 | wake_up(&audio->read_wait); |
| 993 | mutex_lock(&audio->read_lock); |
| 994 | audio->drv_ops.in_flush(audio); |
| 995 | mutex_unlock(&audio->read_lock); |
| 996 | } |
| 997 | audio->avsync_flag = 1; |
| 998 | wake_up(&audio->avsync_wait); |
| 999 | } |
| 1000 | |
| 1001 | static int audmp3_events_pending(struct audio *audio) |
| 1002 | { |
| 1003 | unsigned long flags; |
| 1004 | int empty; |
| 1005 | |
| 1006 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 1007 | empty = !list_empty(&audio->event_queue); |
| 1008 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 1009 | return empty || audio->event_abort; |
| 1010 | } |
| 1011 | |
| 1012 | static void audmp3_reset_event_queue(struct audio *audio) |
| 1013 | { |
| 1014 | unsigned long flags; |
| 1015 | struct audmp3_event *drv_evt; |
| 1016 | struct list_head *ptr, *next; |
| 1017 | |
| 1018 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 1019 | list_for_each_safe(ptr, next, &audio->event_queue) { |
| 1020 | drv_evt = list_first_entry(&audio->event_queue, |
| 1021 | struct audmp3_event, list); |
| 1022 | list_del(&drv_evt->list); |
| 1023 | kfree(drv_evt); |
| 1024 | } |
| 1025 | list_for_each_safe(ptr, next, &audio->free_event_queue) { |
| 1026 | drv_evt = list_first_entry(&audio->free_event_queue, |
| 1027 | struct audmp3_event, list); |
| 1028 | list_del(&drv_evt->list); |
| 1029 | kfree(drv_evt); |
| 1030 | } |
| 1031 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 1032 | |
| 1033 | return; |
| 1034 | } |
| 1035 | |
| 1036 | static long audmp3_process_event_req(struct audio *audio, void __user *arg) |
| 1037 | { |
| 1038 | long rc; |
| 1039 | struct msm_audio_event usr_evt; |
| 1040 | struct audmp3_event *drv_evt = NULL; |
| 1041 | int timeout; |
| 1042 | unsigned long flags; |
| 1043 | |
| 1044 | if (copy_from_user(&usr_evt, arg, sizeof(struct msm_audio_event))) |
| 1045 | return -EFAULT; |
| 1046 | |
| 1047 | timeout = (int) usr_evt.timeout_ms; |
| 1048 | |
| 1049 | if (timeout > 0) { |
| 1050 | rc = wait_event_interruptible_timeout( |
| 1051 | audio->event_wait, audmp3_events_pending(audio), |
| 1052 | msecs_to_jiffies(timeout)); |
| 1053 | if (rc == 0) |
| 1054 | return -ETIMEDOUT; |
| 1055 | } else { |
| 1056 | rc = wait_event_interruptible( |
| 1057 | audio->event_wait, audmp3_events_pending(audio)); |
| 1058 | } |
| 1059 | |
| 1060 | if (rc < 0) |
| 1061 | return rc; |
| 1062 | |
| 1063 | if (audio->event_abort) { |
| 1064 | audio->event_abort = 0; |
| 1065 | return -ENODEV; |
| 1066 | } |
| 1067 | |
| 1068 | rc = 0; |
| 1069 | |
| 1070 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 1071 | if (!list_empty(&audio->event_queue)) { |
| 1072 | drv_evt = list_first_entry(&audio->event_queue, |
| 1073 | struct audmp3_event, list); |
| 1074 | list_del(&drv_evt->list); |
| 1075 | } |
| 1076 | if (drv_evt) { |
| 1077 | usr_evt.event_type = drv_evt->event_type; |
| 1078 | usr_evt.event_payload = drv_evt->payload; |
| 1079 | list_add_tail(&drv_evt->list, &audio->free_event_queue); |
| 1080 | } else |
| 1081 | rc = -1; |
| 1082 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 1083 | |
| 1084 | if (drv_evt->event_type == AUDIO_EVENT_WRITE_DONE || |
| 1085 | drv_evt->event_type == AUDIO_EVENT_READ_DONE) { |
| 1086 | mutex_lock(&audio->lock); |
| 1087 | audmp3_pmem_fixup(audio, drv_evt->payload.aio_buf.buf_addr, |
| 1088 | drv_evt->payload.aio_buf.buf_len, 0); |
| 1089 | mutex_unlock(&audio->lock); |
| 1090 | } |
| 1091 | if (!rc && copy_to_user(arg, &usr_evt, sizeof(usr_evt))) |
| 1092 | rc = -EFAULT; |
| 1093 | |
| 1094 | return rc; |
| 1095 | } |
| 1096 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1097 | static int audmp3_pmem_lookup_vaddr(struct audio *audio, void *addr, |
| 1098 | unsigned long len, struct audmp3_pmem_region **region) |
| 1099 | { |
| 1100 | struct audmp3_pmem_region *region_elt; |
| 1101 | |
| 1102 | int match_count = 0; |
| 1103 | |
| 1104 | *region = NULL; |
| 1105 | |
| 1106 | /* returns physical address or zero */ |
| 1107 | list_for_each_entry(region_elt, &audio->pmem_region_queue, |
| 1108 | list) { |
| 1109 | if (addr >= region_elt->vaddr && |
| 1110 | addr < region_elt->vaddr + region_elt->len && |
| 1111 | addr + len <= region_elt->vaddr + region_elt->len) { |
| 1112 | /* offset since we could pass vaddr inside a registerd |
| 1113 | * pmem buffer |
| 1114 | */ |
| 1115 | |
| 1116 | match_count++; |
| 1117 | if (!*region) |
| 1118 | *region = region_elt; |
| 1119 | } |
| 1120 | } |
| 1121 | |
| 1122 | if (match_count > 1) { |
| 1123 | MM_ERR("multiple hits for vaddr %p, len %ld\n", addr, len); |
| 1124 | list_for_each_entry(region_elt, |
| 1125 | &audio->pmem_region_queue, list) { |
| 1126 | if (addr >= region_elt->vaddr && |
| 1127 | addr < region_elt->vaddr + region_elt->len && |
| 1128 | addr + len <= region_elt->vaddr + region_elt->len) |
| 1129 | MM_ERR("\t%p, %ld --> %p\n", region_elt->vaddr, |
| 1130 | region_elt->len, |
| 1131 | (void *)region_elt->paddr); |
| 1132 | } |
| 1133 | } |
| 1134 | |
| 1135 | return *region ? 0 : -1; |
| 1136 | } |
| 1137 | |
| 1138 | unsigned long audmp3_pmem_fixup(struct audio *audio, void *addr, |
| 1139 | unsigned long len, int ref_up) |
| 1140 | { |
| 1141 | struct audmp3_pmem_region *region; |
| 1142 | unsigned long paddr; |
| 1143 | int ret; |
| 1144 | |
| 1145 | ret = audmp3_pmem_lookup_vaddr(audio, addr, len, ®ion); |
| 1146 | if (ret) { |
| 1147 | MM_ERR("lookup (%p, %ld) failed\n", addr, len); |
| 1148 | return 0; |
| 1149 | } |
| 1150 | if (ref_up) |
| 1151 | region->ref_cnt++; |
| 1152 | else |
| 1153 | region->ref_cnt--; |
| 1154 | MM_DBG("found region %p ref_cnt %d\n", region, region->ref_cnt); |
| 1155 | paddr = region->paddr + (addr - region->vaddr); |
| 1156 | return paddr; |
| 1157 | } |
| 1158 | |
| 1159 | /* audio -> lock must be held at this point */ |
| 1160 | static int audmp3_aio_buf_add(struct audio *audio, unsigned dir, |
| 1161 | void __user *arg) |
| 1162 | { |
| 1163 | unsigned long flags; |
| 1164 | struct audmp3_buffer_node *buf_node; |
| 1165 | |
| 1166 | buf_node = kmalloc(sizeof(*buf_node), GFP_KERNEL); |
| 1167 | |
| 1168 | if (!buf_node) |
| 1169 | return -ENOMEM; |
| 1170 | |
| 1171 | if (copy_from_user(&buf_node->buf, arg, sizeof(buf_node->buf))) { |
| 1172 | kfree(buf_node); |
| 1173 | return -EFAULT; |
| 1174 | } |
| 1175 | |
| 1176 | MM_DBG("node %p dir %x buf_addr %p buf_len %d data_len \ |
| 1177 | %d\n", buf_node, dir, |
| 1178 | buf_node->buf.buf_addr, buf_node->buf.buf_len, |
| 1179 | buf_node->buf.data_len); |
| 1180 | |
| 1181 | buf_node->paddr = audmp3_pmem_fixup( |
| 1182 | audio, buf_node->buf.buf_addr, |
| 1183 | buf_node->buf.buf_len, 1); |
| 1184 | |
| 1185 | if (dir) { |
| 1186 | /* write */ |
| 1187 | if (!buf_node->paddr || |
| 1188 | (buf_node->paddr & 0x1) || |
| 1189 | (buf_node->buf.data_len & 0x1) || |
| 1190 | (!audio->pcm_feedback && |
| 1191 | !buf_node->buf.data_len)) { |
| 1192 | kfree(buf_node); |
| 1193 | return -EINVAL; |
| 1194 | } |
| 1195 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 1196 | list_add_tail(&buf_node->list, &audio->out_queue); |
| 1197 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 1198 | audio->drv_ops.send_data(audio, 0); |
| 1199 | } else { |
| 1200 | /* read */ |
| 1201 | if (!buf_node->paddr || |
| 1202 | (buf_node->paddr & 0x1) || |
| 1203 | (buf_node->buf.buf_len < PCM_BUFSZ_MIN)) { |
| 1204 | kfree(buf_node); |
| 1205 | return -EINVAL; |
| 1206 | } |
| 1207 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 1208 | list_add_tail(&buf_node->list, &audio->in_queue); |
| 1209 | audio->drv_ops.buffer_refresh(audio); |
| 1210 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 1211 | } |
| 1212 | |
| 1213 | MM_DBG("Add buf_node %p paddr %lx\n", buf_node, buf_node->paddr); |
| 1214 | |
| 1215 | return 0; |
| 1216 | } |
| 1217 | |
| 1218 | static int audio_enable_eq(struct audio *audio, int enable) |
| 1219 | { |
| 1220 | if (audio->eq_enable == enable && !audio->eq_needs_commit) |
| 1221 | return 0; |
| 1222 | |
| 1223 | audio->eq_enable = enable; |
| 1224 | |
| 1225 | if (audio->running) { |
| 1226 | audpp_dsp_set_eq(audio->dec_id, enable, &audio->eq, POPP); |
| 1227 | audio->eq_needs_commit = 0; |
| 1228 | } |
| 1229 | return 0; |
| 1230 | } |
| 1231 | |
| 1232 | static int audio_get_avsync_data(struct audio *audio, |
| 1233 | struct msm_audio_stats *stats) |
| 1234 | { |
| 1235 | int rc = -EINVAL; |
| 1236 | unsigned long flags; |
| 1237 | |
| 1238 | local_irq_save(flags); |
| 1239 | if (audio->dec_id == audio->avsync[0] && audio->avsync_flag) { |
| 1240 | /* av_sync sample count */ |
| 1241 | stats->sample_count = (audio->avsync[2] << 16) | |
| 1242 | (audio->avsync[3]); |
| 1243 | |
| 1244 | /* av_sync byte_count */ |
| 1245 | stats->byte_count = (audio->avsync[5] << 16) | |
| 1246 | (audio->avsync[6]); |
| 1247 | |
| 1248 | audio->avsync_flag = 0; |
| 1249 | rc = 0; |
| 1250 | } |
| 1251 | local_irq_restore(flags); |
| 1252 | return rc; |
| 1253 | |
| 1254 | } |
| 1255 | |
| 1256 | static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| 1257 | { |
| 1258 | struct audio *audio = file->private_data; |
| 1259 | int rc = -EINVAL; |
| 1260 | unsigned long flags = 0; |
| 1261 | uint16_t enable_mask; |
| 1262 | int enable; |
| 1263 | int prev_state; |
| 1264 | |
| 1265 | MM_DBG("cmd = %d\n", cmd); |
| 1266 | |
| 1267 | if (cmd == AUDIO_GET_STATS) { |
| 1268 | struct msm_audio_stats stats; |
| 1269 | |
| 1270 | audio->avsync_flag = 0; |
| 1271 | memset(&stats, 0, sizeof(stats)); |
| 1272 | if (audpp_query_avsync(audio->dec_id) < 0) |
| 1273 | return rc; |
| 1274 | |
| 1275 | rc = wait_event_interruptible_timeout(audio->avsync_wait, |
| 1276 | (audio->avsync_flag == 1), |
| 1277 | msecs_to_jiffies(AUDPP_AVSYNC_EVENT_TIMEOUT)); |
| 1278 | |
| 1279 | if (rc < 0) |
| 1280 | return rc; |
| 1281 | else if ((rc > 0) || ((rc == 0) && (audio->avsync_flag == 1))) { |
| 1282 | if (audio_get_avsync_data(audio, &stats) < 0) |
| 1283 | return rc; |
| 1284 | |
| 1285 | if (copy_to_user((void *)arg, &stats, sizeof(stats))) |
| 1286 | return -EFAULT; |
| 1287 | return 0; |
| 1288 | } else |
| 1289 | return -EAGAIN; |
| 1290 | } |
| 1291 | |
| 1292 | switch (cmd) { |
| 1293 | case AUDIO_ENABLE_AUDPP: |
| 1294 | if (copy_from_user(&enable_mask, (void *) arg, |
| 1295 | sizeof(enable_mask))) { |
| 1296 | rc = -EFAULT; |
| 1297 | break; |
| 1298 | } |
| 1299 | |
| 1300 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 1301 | enable = (enable_mask & EQ_ENABLE) ? 1 : 0; |
| 1302 | audio_enable_eq(audio, enable); |
| 1303 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 1304 | rc = 0; |
| 1305 | break; |
| 1306 | case AUDIO_SET_VOLUME: |
| 1307 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 1308 | audio->vol_pan.volume = arg; |
| 1309 | if (audio->running) |
| 1310 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 1311 | POPP); |
| 1312 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 1313 | rc = 0; |
| 1314 | break; |
| 1315 | |
| 1316 | case AUDIO_SET_PAN: |
| 1317 | spin_lock_irqsave(&audio->dsp_lock, flags); |
| 1318 | audio->vol_pan.pan = arg; |
| 1319 | if (audio->running) |
| 1320 | audpp_dsp_set_vol_pan(audio->dec_id, &audio->vol_pan, |
| 1321 | POPP); |
| 1322 | spin_unlock_irqrestore(&audio->dsp_lock, flags); |
| 1323 | rc = 0; |
| 1324 | break; |
| 1325 | |
| 1326 | case AUDIO_SET_EQ: |
| 1327 | prev_state = audio->eq_enable; |
| 1328 | audio->eq_enable = 0; |
| 1329 | if (copy_from_user(&audio->eq.num_bands, (void *) arg, |
| 1330 | sizeof(audio->eq) - |
| 1331 | (AUDPP_CMD_CFG_OBJECT_PARAMS_COMMON_LEN + 2))) { |
| 1332 | rc = -EFAULT; |
| 1333 | break; |
| 1334 | } |
| 1335 | audio->eq_enable = prev_state; |
| 1336 | audio->eq_needs_commit = 1; |
| 1337 | rc = 0; |
| 1338 | break; |
| 1339 | } |
| 1340 | |
| 1341 | if (-EINVAL != rc) |
| 1342 | return rc; |
| 1343 | |
| 1344 | if (cmd == AUDIO_GET_EVENT) { |
| 1345 | MM_DBG(" AUDIO_GET_EVENT\n"); |
| 1346 | if (mutex_trylock(&audio->get_event_lock)) { |
| 1347 | rc = audmp3_process_event_req(audio, |
| 1348 | (void __user *) arg); |
| 1349 | mutex_unlock(&audio->get_event_lock); |
| 1350 | } else |
| 1351 | rc = -EBUSY; |
| 1352 | return rc; |
| 1353 | } |
| 1354 | |
| 1355 | if (cmd == AUDIO_ABORT_GET_EVENT) { |
| 1356 | audio->event_abort = 1; |
| 1357 | wake_up(&audio->event_wait); |
| 1358 | return 0; |
| 1359 | } |
| 1360 | |
| 1361 | mutex_lock(&audio->lock); |
| 1362 | switch (cmd) { |
| 1363 | case AUDIO_START: |
| 1364 | MM_DBG("AUDIO_START\n"); |
| 1365 | rc = audio_enable(audio); |
| 1366 | if (!rc) { |
| 1367 | rc = wait_event_interruptible_timeout(audio->wait, |
| 1368 | audio->dec_state != MSM_AUD_DECODER_STATE_NONE, |
| 1369 | msecs_to_jiffies(MSM_AUD_DECODER_WAIT_MS)); |
| 1370 | MM_INFO("dec_state %d rc = %d\n", audio->dec_state, rc); |
| 1371 | |
| 1372 | if (audio->dec_state != MSM_AUD_DECODER_STATE_SUCCESS) |
| 1373 | rc = -ENODEV; |
| 1374 | else |
| 1375 | rc = 0; |
| 1376 | } |
| 1377 | break; |
| 1378 | case AUDIO_STOP: |
| 1379 | MM_DBG("AUDIO_STOP\n"); |
| 1380 | rc = audio_disable(audio); |
| 1381 | audio->stopped = 1; |
| 1382 | audio_ioport_reset(audio); |
| 1383 | audio->stopped = 0; |
| 1384 | break; |
| 1385 | case AUDIO_FLUSH: |
| 1386 | MM_DBG("AUDIO_FLUSH\n"); |
| 1387 | audio->rflush = 1; |
| 1388 | audio->wflush = 1; |
| 1389 | audio_ioport_reset(audio); |
| 1390 | if (audio->running) { |
| 1391 | audpp_flush(audio->dec_id); |
| 1392 | rc = wait_event_interruptible(audio->write_wait, |
| 1393 | !audio->wflush); |
| 1394 | if (rc < 0) { |
| 1395 | MM_ERR("AUDIO_FLUSH interrupted\n"); |
| 1396 | rc = -EINTR; |
| 1397 | } |
| 1398 | } else { |
| 1399 | audio->rflush = 0; |
| 1400 | audio->wflush = 0; |
| 1401 | } |
| 1402 | break; |
| 1403 | case AUDIO_OUTPORT_FLUSH: |
| 1404 | MM_DBG("AUDIO_OUTPORT_FLUSH\n"); |
| 1405 | audio->rflush = 1; |
| 1406 | if (audio->drv_status & ADRV_STATUS_AIO_INTF) { |
| 1407 | audio->drv_ops.in_flush(audio); |
| 1408 | } else { |
| 1409 | wake_up(&audio->read_wait); |
| 1410 | mutex_lock(&audio->read_lock); |
| 1411 | audio->drv_ops.in_flush(audio); |
| 1412 | mutex_unlock(&audio->read_lock); |
| 1413 | } |
| 1414 | audplay_outport_flush(audio); |
| 1415 | rc = wait_event_interruptible(audio->read_wait, |
| 1416 | !audio->rflush); |
| 1417 | if (rc < 0) { |
| 1418 | MM_ERR("AUDPLAY_OUTPORT_FLUSH interrupted\n"); |
| 1419 | rc = -EINTR; |
| 1420 | } |
| 1421 | break; |
| 1422 | case AUDIO_SET_CONFIG: { |
| 1423 | struct msm_audio_config config; |
| 1424 | if (copy_from_user(&config, (void *) arg, sizeof(config))) { |
| 1425 | rc = -EFAULT; |
| 1426 | break; |
| 1427 | } |
| 1428 | if (config.channel_count == 1) { |
| 1429 | config.channel_count = AUDPP_CMD_PCM_INTF_MONO_V; |
| 1430 | } else if (config.channel_count == 2) { |
| 1431 | config.channel_count = AUDPP_CMD_PCM_INTF_STEREO_V; |
| 1432 | } else { |
| 1433 | rc = -EINVAL; |
| 1434 | break; |
| 1435 | } |
| 1436 | audio->mfield = config.meta_field; |
| 1437 | audio->out_sample_rate = config.sample_rate; |
| 1438 | audio->out_channel_mode = config.channel_count; |
| 1439 | rc = 0; |
| 1440 | break; |
| 1441 | } |
| 1442 | case AUDIO_GET_CONFIG: { |
| 1443 | struct msm_audio_config config; |
| 1444 | config.buffer_size = (audio->out_dma_sz >> 1); |
| 1445 | config.buffer_count = 2; |
| 1446 | config.sample_rate = audio->out_sample_rate; |
| 1447 | if (audio->out_channel_mode == AUDPP_CMD_PCM_INTF_MONO_V) |
| 1448 | config.channel_count = 1; |
| 1449 | else |
| 1450 | config.channel_count = 2; |
| 1451 | config.meta_field = 0; |
| 1452 | config.unused[0] = 0; |
| 1453 | config.unused[1] = 0; |
| 1454 | config.unused[2] = 0; |
| 1455 | if (copy_to_user((void *) arg, &config, sizeof(config))) |
| 1456 | rc = -EFAULT; |
| 1457 | else |
| 1458 | rc = 0; |
| 1459 | break; |
| 1460 | } |
| 1461 | case AUDIO_GET_PCM_CONFIG:{ |
| 1462 | struct msm_audio_pcm_config config; |
| 1463 | config.pcm_feedback = audio->pcm_feedback; |
| 1464 | config.buffer_count = PCM_BUF_MAX_COUNT; |
| 1465 | config.buffer_size = PCM_BUFSZ_MIN; |
| 1466 | if (copy_to_user((void *)arg, &config, |
| 1467 | sizeof(config))) |
| 1468 | rc = -EFAULT; |
| 1469 | else |
| 1470 | rc = 0; |
| 1471 | break; |
| 1472 | } |
| 1473 | case AUDIO_SET_PCM_CONFIG:{ |
| 1474 | struct msm_audio_pcm_config config; |
| 1475 | if (copy_from_user |
| 1476 | (&config, (void *)arg, sizeof(config))) { |
| 1477 | rc = -EFAULT; |
| 1478 | break; |
| 1479 | } |
| 1480 | |
| 1481 | if (config.pcm_feedback != audio->pcm_feedback) { |
| 1482 | MM_ERR("Not sufficient permission to" |
| 1483 | "change the playback mode\n"); |
| 1484 | rc = -EACCES; |
| 1485 | break; |
| 1486 | } |
| 1487 | if (audio->drv_status & ADRV_STATUS_AIO_INTF) { |
| 1488 | rc = 0; |
| 1489 | break; |
| 1490 | } |
| 1491 | |
| 1492 | if ((config.buffer_count > PCM_BUF_MAX_COUNT) || |
| 1493 | (config.buffer_count == 1)) |
| 1494 | config.buffer_count = PCM_BUF_MAX_COUNT; |
| 1495 | |
| 1496 | if (config.buffer_size < PCM_BUFSZ_MIN) |
| 1497 | config.buffer_size = PCM_BUFSZ_MIN; |
| 1498 | |
| 1499 | /* Check if pcm feedback is required */ |
| 1500 | if ((config.pcm_feedback) && (!audio->read_data)) { |
| 1501 | MM_DBG("allocate PCM buffer %d\n", |
| 1502 | config.buffer_count * |
| 1503 | config.buffer_size); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1504 | audio->read_phys = |
| 1505 | allocate_contiguous_ebi_nomap( |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1506 | config.buffer_size * |
| 1507 | config.buffer_count, |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1508 | SZ_4K); |
| 1509 | if (!audio->read_phys) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1510 | rc = -ENOMEM; |
| 1511 | break; |
| 1512 | } |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1513 | audio->map_v_read = ioremap( |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1514 | audio->read_phys, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1515 | config.buffer_size * |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1516 | config.buffer_count); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1517 | if (IS_ERR(audio->map_v_read)) { |
| 1518 | MM_ERR("failed to map read buffer" |
| 1519 | " physical address\n"); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1520 | rc = -ENOMEM; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1521 | free_contiguous_memory_by_paddr( |
| 1522 | audio->read_phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1523 | } else { |
| 1524 | uint8_t index; |
| 1525 | uint32_t offset = 0; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 1526 | audio->read_data = |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 1527 | audio->map_v_read; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1528 | audio->buf_refresh = 0; |
| 1529 | audio->pcm_buf_count = |
| 1530 | config.buffer_count; |
| 1531 | audio->read_next = 0; |
| 1532 | audio->fill_next = 0; |
| 1533 | |
| 1534 | for (index = 0; |
| 1535 | index < config.buffer_count; |
| 1536 | index++) { |
| 1537 | audio->in[index].data = |
| 1538 | audio->read_data + offset; |
| 1539 | audio->in[index].addr = |
| 1540 | audio->read_phys + offset; |
| 1541 | audio->in[index].size = |
| 1542 | config.buffer_size; |
| 1543 | audio->in[index].used = 0; |
| 1544 | offset += config.buffer_size; |
| 1545 | } |
| 1546 | rc = 0; |
| 1547 | MM_DBG("read buf: phy addr \ |
| 1548 | 0x%08x kernel addr 0x%08x\n", |
| 1549 | audio->read_phys, |
| 1550 | (int)audio->read_data); |
| 1551 | } |
| 1552 | } else { |
| 1553 | rc = 0; |
| 1554 | } |
| 1555 | break; |
| 1556 | } |
| 1557 | case AUDIO_PAUSE: |
| 1558 | MM_DBG("AUDIO_PAUSE %ld\n", arg); |
| 1559 | rc = audpp_pause(audio->dec_id, (int) arg); |
| 1560 | break; |
| 1561 | |
| 1562 | case AUDIO_GET_STREAM_INFO:{ |
| 1563 | if (audio->stream_info.sample_rate == 0) { |
| 1564 | /* haven't received DSP stream event, |
| 1565 | the stream info is not updated */ |
| 1566 | rc = -EPERM; |
| 1567 | break; |
| 1568 | } |
| 1569 | if (copy_to_user((void *)arg, &audio->stream_info, |
| 1570 | sizeof(struct msm_audio_bitstream_info))) |
| 1571 | rc = -EFAULT; |
| 1572 | else |
| 1573 | rc = 0; |
| 1574 | break; |
| 1575 | } |
| 1576 | case AUDIO_GET_BITSTREAM_ERROR_INFO:{ |
| 1577 | if ((audio->bitstream_error_info.err_msg_indicator & |
| 1578 | AUDPLAY_STREAM_INFO_MSG_MASK) == |
| 1579 | AUDPLAY_STREAM_INFO_MSG_MASK) { |
| 1580 | /* haven't received bitstream error info event, |
| 1581 | the bitstream error info is not updated */ |
| 1582 | rc = -EPERM; |
| 1583 | break; |
| 1584 | } |
| 1585 | if (copy_to_user((void *)arg, &audio->bitstream_error_info, |
| 1586 | sizeof(struct msm_audio_bitstream_error_info))) |
| 1587 | rc = -EFAULT; |
| 1588 | else |
| 1589 | rc = 0; |
| 1590 | break; |
| 1591 | } |
| 1592 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1593 | case AUDIO_ASYNC_WRITE: |
| 1594 | if (audio->drv_status & ADRV_STATUS_FSYNC) |
| 1595 | rc = -EBUSY; |
| 1596 | else |
| 1597 | rc = audmp3_aio_buf_add(audio, 1, (void __user *) arg); |
| 1598 | break; |
| 1599 | |
| 1600 | case AUDIO_ASYNC_READ: |
| 1601 | if (audio->pcm_feedback) |
| 1602 | rc = audmp3_aio_buf_add(audio, 0, (void __user *) arg); |
| 1603 | else |
| 1604 | rc = -EPERM; |
| 1605 | break; |
| 1606 | case AUDIO_GET_SESSION_ID: |
| 1607 | if (copy_to_user((void *) arg, &audio->dec_id, |
| 1608 | sizeof(unsigned short))) |
| 1609 | rc = -EFAULT; |
| 1610 | else |
| 1611 | rc = 0; |
| 1612 | break; |
| 1613 | case AUDIO_SET_ERR_THRESHOLD_VALUE: |
| 1614 | if (copy_from_user(&audio->bitstream_error_threshold_value, |
| 1615 | (void *)arg, sizeof(uint32_t))) |
| 1616 | rc = -EFAULT; |
| 1617 | else |
| 1618 | rc = 0; |
| 1619 | break; |
| 1620 | default: |
| 1621 | rc = -EINVAL; |
| 1622 | } |
| 1623 | mutex_unlock(&audio->lock); |
| 1624 | return rc; |
| 1625 | } |
| 1626 | |
| 1627 | /* Only useful in tunnel-mode */ |
| 1628 | int audmp3_async_fsync(struct audio *audio) |
| 1629 | { |
| 1630 | int rc = 0; |
| 1631 | |
| 1632 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1633 | |
| 1634 | /* Blocking client sends more data */ |
| 1635 | mutex_lock(&audio->lock); |
| 1636 | audio->drv_status |= ADRV_STATUS_FSYNC; |
| 1637 | mutex_unlock(&audio->lock); |
| 1638 | |
| 1639 | mutex_lock(&audio->write_lock); |
| 1640 | /* pcm dmamiss message is sent continously |
| 1641 | * when decoder is starved so no race |
| 1642 | * condition concern |
| 1643 | */ |
| 1644 | audio->teos = 0; |
| 1645 | |
| 1646 | rc = wait_event_interruptible(audio->write_wait, |
| 1647 | (audio->teos && audio->out_needed && |
| 1648 | list_empty(&audio->out_queue)) |
| 1649 | || audio->wflush || audio->stopped); |
| 1650 | |
| 1651 | if (audio->stopped || audio->wflush) |
| 1652 | rc = -EBUSY; |
| 1653 | |
| 1654 | mutex_unlock(&audio->write_lock); |
| 1655 | mutex_lock(&audio->lock); |
| 1656 | audio->drv_status &= ~ADRV_STATUS_FSYNC; |
| 1657 | mutex_unlock(&audio->lock); |
| 1658 | |
| 1659 | return rc; |
| 1660 | } |
| 1661 | |
| 1662 | int audmp3_sync_fsync(struct audio *audio) |
| 1663 | { |
| 1664 | struct buffer *frame; |
| 1665 | int rc = 0; |
| 1666 | |
| 1667 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 1668 | |
| 1669 | mutex_lock(&audio->write_lock); |
| 1670 | |
| 1671 | rc = wait_event_interruptible(audio->write_wait, |
| 1672 | (!audio->out[0].used && |
| 1673 | !audio->out[1].used && |
| 1674 | audio->out_needed) || audio->wflush); |
| 1675 | |
| 1676 | if (rc < 0) |
| 1677 | goto done; |
| 1678 | else if (audio->wflush) { |
| 1679 | rc = -EBUSY; |
| 1680 | goto done; |
| 1681 | } |
| 1682 | |
| 1683 | if (audio->reserved) { |
| 1684 | MM_DBG("send reserved byte\n"); |
| 1685 | frame = audio->out + audio->out_tail; |
| 1686 | ((char *) frame->data)[0] = audio->rsv_byte; |
| 1687 | ((char *) frame->data)[1] = 0; |
| 1688 | frame->used = 2; |
| 1689 | audio->drv_ops.send_data(audio, 0); |
| 1690 | |
| 1691 | rc = wait_event_interruptible(audio->write_wait, |
| 1692 | (!audio->out[0].used && |
| 1693 | !audio->out[1].used && |
| 1694 | audio->out_needed) || audio->wflush); |
| 1695 | |
| 1696 | if (rc < 0) |
| 1697 | goto done; |
| 1698 | else if (audio->wflush) { |
| 1699 | rc = -EBUSY; |
| 1700 | goto done; |
| 1701 | } |
| 1702 | } |
| 1703 | |
| 1704 | /* pcm dmamiss message is sent continously |
| 1705 | * when decoder is starved so no race |
| 1706 | * condition concern |
| 1707 | */ |
| 1708 | audio->teos = 0; |
| 1709 | |
| 1710 | rc = wait_event_interruptible(audio->write_wait, |
| 1711 | audio->teos || audio->wflush); |
| 1712 | |
| 1713 | if (audio->wflush) |
| 1714 | rc = -EBUSY; |
| 1715 | |
| 1716 | done: |
| 1717 | mutex_unlock(&audio->write_lock); |
| 1718 | return rc; |
| 1719 | } |
| 1720 | |
Steve Muckle | f132c6c | 2012-06-06 18:30:57 -0700 | [diff] [blame] | 1721 | int audmp3_fsync(struct file *file, loff_t ppos1, loff_t ppos2, int datasync) |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1722 | { |
| 1723 | struct audio *audio = file->private_data; |
| 1724 | |
| 1725 | if (!audio->running || audio->pcm_feedback) |
| 1726 | return -EINVAL; |
| 1727 | |
| 1728 | return audio->drv_ops.fsync(audio); |
| 1729 | } |
| 1730 | |
| 1731 | static ssize_t audio_read(struct file *file, char __user *buf, size_t count, |
| 1732 | loff_t *pos) |
| 1733 | { |
| 1734 | struct audio *audio = file->private_data; |
| 1735 | const char __user *start = buf; |
| 1736 | int rc = 0; |
| 1737 | |
| 1738 | if (audio->drv_status & ADRV_STATUS_AIO_INTF) |
| 1739 | return -EPERM; |
| 1740 | else if (!audio->pcm_feedback) |
| 1741 | return 0; /* PCM feedback disabled. Nothing to read */ |
| 1742 | |
| 1743 | mutex_lock(&audio->read_lock); |
| 1744 | MM_DBG("%d \n", count); |
| 1745 | while (count > 0) { |
| 1746 | rc = wait_event_interruptible_timeout( |
| 1747 | audio->read_wait, |
| 1748 | (audio->in[audio->read_next]. |
| 1749 | used > 0) || (audio->stopped) |
| 1750 | || (audio->rflush), |
| 1751 | msecs_to_jiffies(MSM_AUD_BUFFER_UPDATE_WAIT_MS)); |
| 1752 | |
| 1753 | if (rc == 0) { |
| 1754 | rc = -ETIMEDOUT; |
| 1755 | break; |
| 1756 | } else if (rc < 0) |
| 1757 | break; |
| 1758 | |
| 1759 | if (audio->stopped || audio->rflush) { |
| 1760 | rc = -EBUSY; |
| 1761 | break; |
| 1762 | } |
| 1763 | |
| 1764 | if (count < audio->in[audio->read_next].used) { |
| 1765 | /* Read must happen in frame boundary. Since |
| 1766 | * driver does not know frame size, read count |
| 1767 | * must be greater or equal |
| 1768 | * to size of PCM samples |
| 1769 | */ |
| 1770 | MM_DBG("no partial frame done reading\n"); |
| 1771 | break; |
| 1772 | } else { |
| 1773 | MM_DBG("read from in[%d]\n", audio->read_next); |
| 1774 | |
| 1775 | if (copy_to_user |
| 1776 | (buf, audio->in[audio->read_next].data, |
| 1777 | audio->in[audio->read_next].used)) { |
| 1778 | MM_ERR("invalid addr %x \n", (unsigned int)buf); |
| 1779 | rc = -EFAULT; |
| 1780 | break; |
| 1781 | } |
| 1782 | count -= audio->in[audio->read_next].used; |
| 1783 | buf += audio->in[audio->read_next].used; |
| 1784 | audio->in[audio->read_next].used = 0; |
| 1785 | if ((++audio->read_next) == audio->pcm_buf_count) |
| 1786 | audio->read_next = 0; |
| 1787 | break; /* Force to exit while loop |
| 1788 | * to prevent output thread |
| 1789 | * sleep too long if data is |
| 1790 | * not ready at this moment. |
| 1791 | */ |
| 1792 | } |
| 1793 | } |
| 1794 | |
| 1795 | /* don't feed output buffer to HW decoder during flushing |
| 1796 | * buffer refresh command will be sent once flush completes |
| 1797 | * send buf refresh command here can confuse HW decoder |
| 1798 | */ |
| 1799 | if (audio->buf_refresh && !audio->rflush) { |
| 1800 | audio->buf_refresh = 0; |
| 1801 | MM_DBG("kick start pcm feedback again\n"); |
| 1802 | audio->drv_ops.buffer_refresh(audio); |
| 1803 | } |
| 1804 | |
| 1805 | mutex_unlock(&audio->read_lock); |
| 1806 | |
| 1807 | if (buf > start) |
| 1808 | rc = buf - start; |
| 1809 | |
| 1810 | MM_DBG("read %d bytes\n", rc); |
| 1811 | return rc; |
| 1812 | } |
| 1813 | |
| 1814 | static int audmp3_process_eos(struct audio *audio, |
| 1815 | const char __user *buf_start, unsigned short mfield_size) |
| 1816 | { |
| 1817 | int rc = 0; |
| 1818 | struct buffer *frame; |
| 1819 | char *buf_ptr; |
| 1820 | |
| 1821 | if (audio->reserved) { |
| 1822 | MM_DBG("flush reserve byte\n"); |
| 1823 | frame = audio->out + audio->out_head; |
| 1824 | buf_ptr = frame->data; |
| 1825 | rc = wait_event_interruptible(audio->write_wait, |
| 1826 | (frame->used == 0) |
| 1827 | || (audio->stopped) |
| 1828 | || (audio->wflush)); |
| 1829 | if (rc < 0) |
| 1830 | goto done; |
| 1831 | if (audio->stopped || audio->wflush) { |
| 1832 | rc = -EBUSY; |
| 1833 | goto done; |
| 1834 | } |
| 1835 | |
| 1836 | buf_ptr[0] = audio->rsv_byte; |
| 1837 | buf_ptr[1] = 0; |
| 1838 | audio->out_head ^= 1; |
| 1839 | frame->mfield_sz = 0; |
| 1840 | frame->used = 2; |
| 1841 | audio->reserved = 0; |
| 1842 | audio->drv_ops.send_data(audio, 0); |
| 1843 | } |
| 1844 | |
| 1845 | frame = audio->out + audio->out_head; |
| 1846 | |
| 1847 | rc = wait_event_interruptible(audio->write_wait, |
| 1848 | (audio->out_needed && |
| 1849 | audio->out[0].used == 0 && |
| 1850 | audio->out[1].used == 0) |
| 1851 | || (audio->stopped) |
| 1852 | || (audio->wflush)); |
| 1853 | |
| 1854 | if (rc < 0) |
| 1855 | goto done; |
| 1856 | if (audio->stopped || audio->wflush) { |
| 1857 | rc = -EBUSY; |
| 1858 | goto done; |
| 1859 | } |
| 1860 | |
| 1861 | if (copy_from_user(frame->data, buf_start, mfield_size)) { |
| 1862 | rc = -EFAULT; |
| 1863 | goto done; |
| 1864 | } |
| 1865 | |
| 1866 | frame->mfield_sz = mfield_size; |
| 1867 | audio->out_head ^= 1; |
| 1868 | frame->used = mfield_size; |
| 1869 | audio->drv_ops.send_data(audio, 0); |
| 1870 | done: |
| 1871 | return rc; |
| 1872 | } |
| 1873 | |
| 1874 | static ssize_t audio_write(struct file *file, const char __user *buf, |
| 1875 | size_t count, loff_t *pos) |
| 1876 | { |
| 1877 | struct audio *audio = file->private_data; |
| 1878 | const char __user *start = buf; |
| 1879 | struct buffer *frame; |
| 1880 | size_t xfer; |
| 1881 | char *cpy_ptr; |
| 1882 | int rc = 0, eos_condition = AUDMP3_EOS_NONE; |
| 1883 | unsigned dsize; |
| 1884 | unsigned short mfield_size = 0; |
| 1885 | |
| 1886 | if (audio->drv_status & ADRV_STATUS_AIO_INTF) |
| 1887 | return -EPERM; |
| 1888 | |
| 1889 | MM_DBG("cnt=%d\n", count); |
| 1890 | |
| 1891 | mutex_lock(&audio->write_lock); |
| 1892 | while (count > 0) { |
| 1893 | frame = audio->out + audio->out_head; |
| 1894 | cpy_ptr = frame->data; |
| 1895 | dsize = 0; |
| 1896 | rc = wait_event_interruptible(audio->write_wait, |
| 1897 | (frame->used == 0) |
| 1898 | || (audio->stopped) |
| 1899 | || (audio->wflush)); |
| 1900 | if (rc < 0) |
| 1901 | break; |
| 1902 | if (audio->stopped || audio->wflush) { |
| 1903 | rc = -EBUSY; |
| 1904 | break; |
| 1905 | } |
| 1906 | if (audio->mfield) { |
| 1907 | if (buf == start) { |
| 1908 | /* Processing beginning of user buffer */ |
| 1909 | if (__get_user(mfield_size, |
| 1910 | (unsigned short __user *) buf)) { |
| 1911 | rc = -EFAULT; |
| 1912 | break; |
| 1913 | } else if (mfield_size > count) { |
| 1914 | rc = -EINVAL; |
| 1915 | break; |
| 1916 | } |
| 1917 | MM_DBG("mf offset_val %x\n", mfield_size); |
| 1918 | if (copy_from_user(cpy_ptr, buf, mfield_size)) { |
| 1919 | rc = -EFAULT; |
| 1920 | break; |
| 1921 | } |
| 1922 | /* Check if EOS flag is set and buffer has |
| 1923 | * contains just meta field |
| 1924 | */ |
| 1925 | if (cpy_ptr[AUDMP3_EOS_FLG_OFFSET] & |
| 1926 | AUDMP3_EOS_FLG_MASK) { |
| 1927 | MM_DBG("EOS SET\n"); |
| 1928 | eos_condition = AUDMP3_EOS_SET; |
| 1929 | if (mfield_size == count) { |
| 1930 | buf += mfield_size; |
| 1931 | break; |
| 1932 | } else |
| 1933 | cpy_ptr[AUDMP3_EOS_FLG_OFFSET] |
| 1934 | &= ~AUDMP3_EOS_FLG_MASK; |
| 1935 | } |
| 1936 | cpy_ptr += mfield_size; |
| 1937 | count -= mfield_size; |
| 1938 | dsize += mfield_size; |
| 1939 | buf += mfield_size; |
| 1940 | } else { |
| 1941 | mfield_size = 0; |
| 1942 | MM_DBG("continuous buffer\n"); |
| 1943 | } |
| 1944 | frame->mfield_sz = mfield_size; |
| 1945 | } |
| 1946 | |
| 1947 | if (audio->reserved) { |
| 1948 | MM_DBG("append reserved byte %x\n", audio->rsv_byte); |
| 1949 | *cpy_ptr = audio->rsv_byte; |
| 1950 | xfer = (count > ((frame->size - mfield_size) - 1)) ? |
| 1951 | (frame->size - mfield_size) - 1 : count; |
| 1952 | cpy_ptr++; |
| 1953 | dsize += 1; |
| 1954 | audio->reserved = 0; |
| 1955 | } else |
| 1956 | xfer = (count > (frame->size - mfield_size)) ? |
| 1957 | (frame->size - mfield_size) : count; |
| 1958 | |
| 1959 | if (copy_from_user(cpy_ptr, buf, xfer)) { |
| 1960 | rc = -EFAULT; |
| 1961 | break; |
| 1962 | } |
| 1963 | |
| 1964 | dsize += xfer; |
| 1965 | if (dsize & 1) { |
| 1966 | audio->rsv_byte = ((char *) frame->data)[dsize - 1]; |
| 1967 | MM_DBG("odd length buf reserve last byte %x\n", |
| 1968 | audio->rsv_byte); |
| 1969 | audio->reserved = 1; |
| 1970 | dsize--; |
| 1971 | } |
| 1972 | count -= xfer; |
| 1973 | buf += xfer; |
| 1974 | |
| 1975 | if (dsize > 0) { |
| 1976 | audio->out_head ^= 1; |
| 1977 | frame->used = dsize; |
| 1978 | audio->drv_ops.send_data(audio, 0); |
| 1979 | } |
| 1980 | } |
| 1981 | if (eos_condition == AUDMP3_EOS_SET) |
| 1982 | rc = audmp3_process_eos(audio, start, mfield_size); |
| 1983 | mutex_unlock(&audio->write_lock); |
| 1984 | if (!rc) { |
| 1985 | if (buf > start) |
| 1986 | return buf - start; |
| 1987 | } |
| 1988 | return rc; |
| 1989 | } |
| 1990 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1991 | static int audio_release(struct inode *inode, struct file *file) |
| 1992 | { |
| 1993 | struct audio *audio = file->private_data; |
| 1994 | |
| 1995 | MM_INFO("audio instance 0x%08x freeing\n", (int)audio); |
| 1996 | mutex_lock(&audio->lock); |
| 1997 | auddev_unregister_evt_listner(AUDDEV_CLNT_DEC, audio->dec_id); |
| 1998 | audio_disable(audio); |
| 1999 | audio->drv_ops.out_flush(audio); |
| 2000 | audio->drv_ops.in_flush(audio); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2001 | |
| 2002 | msm_adsp_put(audio->audplay); |
| 2003 | audpp_adec_free(audio->dec_id); |
| 2004 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 2005 | unregister_early_suspend(&audio->suspend_ctl.node); |
| 2006 | #endif |
| 2007 | audio->opened = 0; |
| 2008 | audio->event_abort = 1; |
| 2009 | wake_up(&audio->event_wait); |
| 2010 | audmp3_reset_event_queue(audio); |
| 2011 | if (audio->data) { |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 2012 | iounmap(audio->map_v_write); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2013 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2014 | } |
| 2015 | if (audio->read_data) { |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 2016 | iounmap(audio->map_v_read); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2017 | free_contiguous_memory_by_paddr(audio->read_phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2018 | } |
| 2019 | mutex_unlock(&audio->lock); |
| 2020 | #ifdef CONFIG_DEBUG_FS |
| 2021 | if (audio->dentry) |
| 2022 | debugfs_remove(audio->dentry); |
| 2023 | #endif |
| 2024 | kfree(audio); |
| 2025 | return 0; |
| 2026 | } |
| 2027 | |
| 2028 | static void audmp3_post_event(struct audio *audio, int type, |
| 2029 | union msm_audio_event_payload payload) |
| 2030 | { |
| 2031 | struct audmp3_event *e_node = NULL; |
| 2032 | unsigned long flags; |
| 2033 | |
| 2034 | spin_lock_irqsave(&audio->event_queue_lock, flags); |
| 2035 | |
| 2036 | if (!list_empty(&audio->free_event_queue)) { |
| 2037 | e_node = list_first_entry(&audio->free_event_queue, |
| 2038 | struct audmp3_event, list); |
| 2039 | list_del(&e_node->list); |
| 2040 | } else { |
| 2041 | e_node = kmalloc(sizeof(struct audmp3_event), GFP_ATOMIC); |
| 2042 | if (!e_node) { |
| 2043 | MM_ERR("No mem to post event %d\n", type); |
| 2044 | return; |
| 2045 | } |
| 2046 | } |
| 2047 | |
| 2048 | e_node->event_type = type; |
| 2049 | e_node->payload = payload; |
| 2050 | |
| 2051 | list_add_tail(&e_node->list, &audio->event_queue); |
| 2052 | spin_unlock_irqrestore(&audio->event_queue_lock, flags); |
| 2053 | wake_up(&audio->event_wait); |
| 2054 | } |
| 2055 | |
| 2056 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 2057 | static void audmp3_suspend(struct early_suspend *h) |
| 2058 | { |
| 2059 | struct audmp3_suspend_ctl *ctl = |
| 2060 | container_of(h, struct audmp3_suspend_ctl, node); |
| 2061 | union msm_audio_event_payload payload; |
| 2062 | |
| 2063 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 2064 | audmp3_post_event(ctl->audio, AUDIO_EVENT_SUSPEND, payload); |
| 2065 | } |
| 2066 | |
| 2067 | static void audmp3_resume(struct early_suspend *h) |
| 2068 | { |
| 2069 | struct audmp3_suspend_ctl *ctl = |
| 2070 | container_of(h, struct audmp3_suspend_ctl, node); |
| 2071 | union msm_audio_event_payload payload; |
| 2072 | |
| 2073 | MM_DBG("\n"); /* Macro prints the file name and function */ |
| 2074 | audmp3_post_event(ctl->audio, AUDIO_EVENT_RESUME, payload); |
| 2075 | } |
| 2076 | #endif |
| 2077 | |
| 2078 | #ifdef CONFIG_DEBUG_FS |
| 2079 | static ssize_t audmp3_debug_open(struct inode *inode, struct file *file) |
| 2080 | { |
| 2081 | file->private_data = inode->i_private; |
| 2082 | return 0; |
| 2083 | } |
| 2084 | |
| 2085 | static ssize_t audmp3_debug_read(struct file *file, char __user *buf, |
| 2086 | size_t count, loff_t *ppos) |
| 2087 | { |
| 2088 | const int debug_bufmax = 4096; |
| 2089 | static char buffer[4096]; |
| 2090 | int n = 0, i; |
| 2091 | struct audio *audio = file->private_data; |
| 2092 | |
| 2093 | mutex_lock(&audio->lock); |
| 2094 | n = scnprintf(buffer, debug_bufmax, "opened %d\n", audio->opened); |
| 2095 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2096 | "enabled %d\n", audio->enabled); |
| 2097 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2098 | "stopped %d\n", audio->stopped); |
| 2099 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2100 | "pcm_feedback %d\n", audio->pcm_feedback); |
| 2101 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2102 | "out_buf_sz %d\n", audio->out[0].size); |
| 2103 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2104 | "pcm_buf_count %d \n", audio->pcm_buf_count); |
| 2105 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2106 | "pcm_buf_sz %d \n", audio->in[0].size); |
| 2107 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2108 | "volume %x \n", audio->vol_pan.volume); |
| 2109 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2110 | "sample rate %d \n", audio->out_sample_rate); |
| 2111 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2112 | "channel mode %d \n", audio->out_channel_mode); |
| 2113 | mutex_unlock(&audio->lock); |
| 2114 | /* Following variables are only useful for debugging when |
| 2115 | * when playback halts unexpectedly. Thus, no mutual exclusion |
| 2116 | * enforced |
| 2117 | */ |
| 2118 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2119 | "wflush %d\n", audio->wflush); |
| 2120 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2121 | "rflush %d\n", audio->rflush); |
| 2122 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2123 | "running %d \n", audio->running); |
| 2124 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2125 | "dec state %d \n", audio->dec_state); |
| 2126 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2127 | "out_needed %d \n", audio->out_needed); |
| 2128 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2129 | "out_head %d \n", audio->out_head); |
| 2130 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2131 | "out_tail %d \n", audio->out_tail); |
| 2132 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2133 | "out[0].used %d \n", audio->out[0].used); |
| 2134 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2135 | "out[1].used %d \n", audio->out[1].used); |
| 2136 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2137 | "buffer_refresh %d \n", audio->buf_refresh); |
| 2138 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2139 | "read_next %d \n", audio->read_next); |
| 2140 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2141 | "fill_next %d \n", audio->fill_next); |
| 2142 | for (i = 0; i < audio->pcm_buf_count; i++) |
| 2143 | n += scnprintf(buffer + n, debug_bufmax - n, |
| 2144 | "in[%d].size %d \n", i, audio->in[i].used); |
| 2145 | buffer[n] = 0; |
| 2146 | return simple_read_from_buffer(buf, count, ppos, buffer, n); |
| 2147 | } |
| 2148 | |
| 2149 | static const struct file_operations audmp3_debug_fops = { |
| 2150 | .read = audmp3_debug_read, |
| 2151 | .open = audmp3_debug_open, |
| 2152 | }; |
| 2153 | #endif |
| 2154 | |
| 2155 | static int audio_open(struct inode *inode, struct file *file) |
| 2156 | { |
| 2157 | |
| 2158 | struct audio *audio = NULL; |
| 2159 | int rc, i, dec_attrb, decid; |
| 2160 | struct audmp3_event *e_node = NULL; |
| 2161 | unsigned pmem_sz = DMASZ_MAX; |
| 2162 | #ifdef CONFIG_DEBUG_FS |
| 2163 | /* 4 bytes represents decoder number, 1 byte for terminate string */ |
| 2164 | char name[sizeof "msm_mp3_" + 5]; |
| 2165 | #endif |
| 2166 | |
| 2167 | /* Allocate audio instance, set to zero */ |
| 2168 | audio = kzalloc(sizeof(struct audio), GFP_KERNEL); |
| 2169 | if (!audio) { |
| 2170 | MM_ERR("no memory to allocate audio instance \n"); |
| 2171 | rc = -ENOMEM; |
| 2172 | goto done; |
| 2173 | } |
| 2174 | MM_INFO("audio instance 0x%08x created\n", (int)audio); |
| 2175 | |
| 2176 | /* Allocate the decoder */ |
| 2177 | dec_attrb = AUDDEC_DEC_MP3; |
| 2178 | if ((file->f_mode & FMODE_WRITE) && |
| 2179 | (file->f_mode & FMODE_READ)) { |
| 2180 | dec_attrb |= MSM_AUD_MODE_NONTUNNEL; |
| 2181 | audio->pcm_feedback = NON_TUNNEL_MODE_PLAYBACK; |
| 2182 | } else if ((file->f_mode & FMODE_WRITE) && |
| 2183 | !(file->f_mode & FMODE_READ)) { |
| 2184 | dec_attrb |= MSM_AUD_MODE_TUNNEL; |
| 2185 | audio->pcm_feedback = TUNNEL_MODE_PLAYBACK; |
| 2186 | } else { |
| 2187 | kfree(audio); |
| 2188 | rc = -EACCES; |
| 2189 | goto done; |
| 2190 | } |
| 2191 | |
| 2192 | decid = audpp_adec_alloc(dec_attrb, &audio->module_name, |
| 2193 | &audio->queue_id); |
| 2194 | if (decid < 0) { |
| 2195 | MM_ERR("No free decoder available, freeing instance 0x%08x\n", |
| 2196 | (int)audio); |
| 2197 | rc = -ENODEV; |
| 2198 | kfree(audio); |
| 2199 | goto done; |
| 2200 | } |
| 2201 | audio->dec_id = decid & MSM_AUD_DECODER_MASK; |
| 2202 | |
| 2203 | /* AIO interface */ |
| 2204 | if (file->f_flags & O_NONBLOCK) { |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2205 | MM_DBG("set to aio interface\n"); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2206 | audio->drv_status |= ADRV_STATUS_AIO_INTF; |
| 2207 | audio->drv_ops.pcm_buf_update = audmp3_async_pcm_buf_update; |
| 2208 | audio->drv_ops.buffer_refresh = audmp3_async_buffer_refresh; |
| 2209 | audio->drv_ops.send_data = audmp3_async_send_data; |
| 2210 | audio->drv_ops.out_flush = audmp3_async_flush; |
| 2211 | audio->drv_ops.in_flush = audmp3_async_flush_pcm_buf; |
| 2212 | audio->drv_ops.fsync = audmp3_async_fsync; |
| 2213 | } else { |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2214 | MM_DBG("set to std io interface\n"); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2215 | while (pmem_sz >= DMASZ_MIN) { |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2216 | MM_DBG("pmemsz = %d\n", pmem_sz); |
| 2217 | audio->phys = allocate_contiguous_ebi_nomap(pmem_sz, |
| 2218 | SZ_4K); |
| 2219 | if (audio->phys) { |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 2220 | audio->map_v_write = ioremap( |
| 2221 | audio->phys, pmem_sz); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2222 | if (IS_ERR(audio->map_v_write)) { |
| 2223 | MM_ERR("failed to map write physical" |
| 2224 | " address , freeing instance" |
| 2225 | "0x%08x\n", (int)audio); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2226 | rc = -ENOMEM; |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2227 | free_contiguous_memory_by_paddr( |
| 2228 | audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2229 | audpp_adec_free(audio->dec_id); |
| 2230 | kfree(audio); |
| 2231 | goto done; |
| 2232 | } |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 2233 | audio->data = audio->map_v_write; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2234 | MM_DBG("write buf: phy addr 0x%08x kernel addr\ |
| 2235 | 0x%08x\n", audio->phys,\ |
| 2236 | (int)audio->data); |
| 2237 | break; |
| 2238 | } else if (pmem_sz == DMASZ_MIN) { |
| 2239 | MM_ERR("could not allocate write buffers, \ |
| 2240 | freeing instance 0x%08x\n", |
| 2241 | (int)audio); |
| 2242 | rc = -ENOMEM; |
| 2243 | audpp_adec_free(audio->dec_id); |
| 2244 | kfree(audio); |
| 2245 | goto done; |
| 2246 | } else |
| 2247 | pmem_sz >>= 1; |
| 2248 | } |
| 2249 | audio->out_dma_sz = pmem_sz; |
| 2250 | audio->drv_ops.pcm_buf_update = audio_update_pcm_buf_entry; |
| 2251 | audio->drv_ops.buffer_refresh = audplay_buffer_refresh; |
| 2252 | audio->drv_ops.send_data = audplay_send_data; |
| 2253 | audio->drv_ops.out_flush = audio_flush; |
| 2254 | audio->drv_ops.in_flush = audio_flush_pcm_buf; |
| 2255 | audio->drv_ops.fsync = audmp3_sync_fsync; |
| 2256 | audio->out[0].data = audio->data + 0; |
| 2257 | audio->out[0].addr = audio->phys + 0; |
| 2258 | audio->out[0].size = (audio->out_dma_sz >> 1); |
| 2259 | |
| 2260 | audio->out[1].data = audio->data + audio->out[0].size; |
| 2261 | audio->out[1].addr = audio->phys + audio->out[0].size; |
| 2262 | audio->out[1].size = audio->out[0].size; |
| 2263 | } |
| 2264 | |
| 2265 | rc = msm_adsp_get(audio->module_name, &audio->audplay, |
| 2266 | &audplay_adsp_ops, audio); |
| 2267 | |
| 2268 | if (rc) { |
| 2269 | MM_ERR("failed to get %s module freeing instance 0x%08x\n", |
| 2270 | audio->module_name, (int)audio); |
| 2271 | goto err; |
| 2272 | } |
| 2273 | |
| 2274 | /* Initialize all locks of audio instance */ |
| 2275 | mutex_init(&audio->lock); |
| 2276 | mutex_init(&audio->write_lock); |
| 2277 | mutex_init(&audio->read_lock); |
| 2278 | mutex_init(&audio->get_event_lock); |
| 2279 | spin_lock_init(&audio->dsp_lock); |
| 2280 | init_waitqueue_head(&audio->write_wait); |
| 2281 | init_waitqueue_head(&audio->read_wait); |
| 2282 | INIT_LIST_HEAD(&audio->out_queue); |
| 2283 | INIT_LIST_HEAD(&audio->in_queue); |
| 2284 | INIT_LIST_HEAD(&audio->pmem_region_queue); |
| 2285 | INIT_LIST_HEAD(&audio->free_event_queue); |
| 2286 | INIT_LIST_HEAD(&audio->event_queue); |
| 2287 | init_waitqueue_head(&audio->wait); |
| 2288 | init_waitqueue_head(&audio->event_wait); |
| 2289 | spin_lock_init(&audio->event_queue_lock); |
| 2290 | init_waitqueue_head(&audio->avsync_wait); |
| 2291 | |
| 2292 | audio->out_sample_rate = 44100; |
| 2293 | audio->out_channel_mode = AUDPP_CMD_PCM_INTF_STEREO_V; |
| 2294 | audio->vol_pan.volume = 0x2000; |
| 2295 | audio->bitstream_error_threshold_value = |
| 2296 | BITSTREAM_ERROR_THRESHOLD_VALUE; |
| 2297 | |
| 2298 | audio->drv_ops.out_flush(audio); |
| 2299 | |
| 2300 | file->private_data = audio; |
| 2301 | audio->opened = 1; |
| 2302 | |
| 2303 | audio->device_events = AUDDEV_EVT_DEV_RDY |
| 2304 | |AUDDEV_EVT_DEV_RLS | |
| 2305 | AUDDEV_EVT_STREAM_VOL_CHG; |
| 2306 | |
| 2307 | rc = auddev_register_evt_listner(audio->device_events, |
| 2308 | AUDDEV_CLNT_DEC, |
| 2309 | audio->dec_id, |
| 2310 | mp3_listner, |
| 2311 | (void *)audio); |
| 2312 | if (rc) { |
| 2313 | MM_ERR("%s: failed to register listner\n", __func__); |
| 2314 | goto event_err; |
| 2315 | } |
| 2316 | |
| 2317 | #ifdef CONFIG_DEBUG_FS |
| 2318 | snprintf(name, sizeof name, "msm_mp3_%04x", audio->dec_id); |
| 2319 | audio->dentry = debugfs_create_file(name, S_IFREG | S_IRUGO, |
| 2320 | NULL, (void *) audio, &audmp3_debug_fops); |
| 2321 | |
| 2322 | if (IS_ERR(audio->dentry)) |
| 2323 | MM_DBG("debugfs_create_file failed\n"); |
| 2324 | #endif |
| 2325 | #ifdef CONFIG_HAS_EARLYSUSPEND |
| 2326 | audio->suspend_ctl.node.level = EARLY_SUSPEND_LEVEL_DISABLE_FB; |
| 2327 | audio->suspend_ctl.node.resume = audmp3_resume; |
| 2328 | audio->suspend_ctl.node.suspend = audmp3_suspend; |
| 2329 | audio->suspend_ctl.audio = audio; |
| 2330 | register_early_suspend(&audio->suspend_ctl.node); |
| 2331 | #endif |
| 2332 | for (i = 0; i < AUDMP3_EVENT_NUM; i++) { |
| 2333 | e_node = kmalloc(sizeof(struct audmp3_event), GFP_KERNEL); |
| 2334 | if (e_node) |
| 2335 | list_add_tail(&e_node->list, &audio->free_event_queue); |
| 2336 | else { |
| 2337 | MM_ERR("event pkt alloc failed\n"); |
| 2338 | break; |
| 2339 | } |
| 2340 | } |
| 2341 | memset(&audio->stream_info, 0, sizeof(struct msm_audio_bitstream_info)); |
| 2342 | memset(&audio->bitstream_error_info, 0, |
| 2343 | sizeof(struct msm_audio_bitstream_info)); |
| 2344 | done: |
| 2345 | return rc; |
| 2346 | event_err: |
| 2347 | msm_adsp_put(audio->audplay); |
| 2348 | err: |
| 2349 | if (audio->data) { |
Laura Abbott | 6139969 | 2012-04-30 14:25:46 -0700 | [diff] [blame] | 2350 | iounmap(audio->map_v_write); |
Santosh Mardi | fdc227a | 2011-07-11 17:20:34 +0530 | [diff] [blame] | 2351 | free_contiguous_memory_by_paddr(audio->phys); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2352 | } |
| 2353 | audpp_adec_free(audio->dec_id); |
| 2354 | kfree(audio); |
| 2355 | return rc; |
| 2356 | } |
| 2357 | |
| 2358 | static const struct file_operations audio_mp3_fops = { |
| 2359 | .owner = THIS_MODULE, |
| 2360 | .open = audio_open, |
| 2361 | .release = audio_release, |
| 2362 | .read = audio_read, |
| 2363 | .write = audio_write, |
| 2364 | .unlocked_ioctl = audio_ioctl, |
| 2365 | .fsync = audmp3_fsync, |
| 2366 | }; |
| 2367 | |
| 2368 | struct miscdevice audio_mp3_misc = { |
| 2369 | .minor = MISC_DYNAMIC_MINOR, |
| 2370 | .name = "msm_mp3", |
| 2371 | .fops = &audio_mp3_fops, |
| 2372 | }; |
| 2373 | |
| 2374 | static int __init audio_init(void) |
| 2375 | { |
| 2376 | return misc_register(&audio_mp3_misc); |
| 2377 | } |
| 2378 | |
| 2379 | static void __exit audio_exit(void) |
| 2380 | { |
| 2381 | misc_deregister(&audio_mp3_misc); |
| 2382 | } |
| 2383 | |
| 2384 | module_init(audio_init); |
| 2385 | module_exit(audio_exit); |
| 2386 | |
| 2387 | MODULE_DESCRIPTION("MSM MP3 driver"); |
| 2388 | MODULE_LICENSE("GPL v2"); |