208 lines
5.9 KiB
C
208 lines
5.9 KiB
C
/*
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* Copyright (C) 2008 Google, Inc.
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* Copyright (C) 2008 HTC Corporation
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* Copyright (c) 2008-2010, The Linux Foundation. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can find it at http://www.fsf.org.
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*/
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#ifndef _MSM_PCM_H
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#define _MSM_PCM_H
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#include <mach/qdsp5v2/qdsp5audppcmdi.h>
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#include <mach/qdsp5v2/qdsp5audppmsg.h>
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#include <mach/qdsp5v2/qdsp5audplaycmdi.h>
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#include <mach/qdsp5v2/qdsp5audplaymsg.h>
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#include <mach/qdsp5v2/audpp.h>
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#include <mach/msm_adsp.h>
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#include <mach/qdsp5v2/qdsp5audreccmdi.h>
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#include <mach/qdsp5v2/qdsp5audrecmsg.h>
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#include <mach/qdsp5v2/audpreproc.h>
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#define FRAME_NUM (8)
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#define FRAME_SIZE (2052 * 2)
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#define MONO_DATA_SIZE (2048)
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#define STEREO_DATA_SIZE (MONO_DATA_SIZE * 2)
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#define CAPTURE_DMASZ (FRAME_SIZE * FRAME_NUM)
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#define BUFSZ (960 * 5)
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#define PLAYBACK_DMASZ (BUFSZ * 2)
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#define MSM_PLAYBACK_DEFAULT_VOLUME 0 /* 0dB */
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#define MSM_PLAYBACK_DEFAULT_PAN 0
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#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE
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#define USE_CHANNELS_MIN 1
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#define USE_CHANNELS_MAX 2
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/* Support unconventional sample rates 12000, 24000 as well */
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#define USE_RATE \
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(SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT)
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#define USE_RATE_MIN 8000
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#define USE_RATE_MAX 48000
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#define MAX_BUFFER_PLAYBACK_SIZE \
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PLAYBACK_DMASZ
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/* 2048 frames (Mono), 1024 frames (Stereo) */
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#define CAPTURE_SIZE 4096
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#define MAX_BUFFER_CAPTURE_SIZE (4096*4)
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#define MAX_PERIOD_SIZE BUFSZ
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#define USE_PERIODS_MAX 1024
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#define USE_PERIODS_MIN 1
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#define MAX_DB (16)
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#define MIN_DB (-50)
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#define PCMPLAYBACK_DECODERID 5
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/* 0xFFFFFFFF Indicates not to be used for audio data copy */
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#define BUF_INVALID_LEN 0xFFFFFFFF
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#define EVENT_MSG_ID ((uint16_t)~0)
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#define AUDDEC_DEC_PCM 0
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/* Decoder status received from AUDPPTASK */
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#define AUDPP_DEC_STATUS_SLEEP 0
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#define AUDPP_DEC_STATUS_INIT 1
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#define AUDPP_DEC_STATUS_CFG 2
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#define AUDPP_DEC_STATUS_PLAY 3
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extern int copy_count;
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extern int intcnt;
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struct buffer {
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void *data;
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unsigned size;
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unsigned used;
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unsigned addr;
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};
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struct buffer_rec {
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void *data;
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unsigned int size;
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unsigned int read;
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unsigned int addr;
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};
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struct audio_locks {
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struct mutex lock;
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struct mutex write_lock;
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struct mutex read_lock;
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spinlock_t read_dsp_lock;
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spinlock_t write_dsp_lock;
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spinlock_t mixer_lock;
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wait_queue_head_t read_wait;
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wait_queue_head_t write_wait;
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wait_queue_head_t wait;
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wait_queue_head_t eos_wait;
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wait_queue_head_t enable_wait;
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};
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extern struct audio_locks the_locks;
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struct msm_audio_event_callbacks {
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/* event is called from interrupt context when a message
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* arrives from the DSP.
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*/
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void (*playback)(void *);
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void (*capture)(void *);
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};
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struct msm_audio {
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struct buffer out[2];
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struct buffer_rec in[8];
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uint8_t out_head;
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uint8_t out_tail;
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uint8_t out_needed; /* number of buffers the dsp is waiting for */
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atomic_t out_bytes;
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/* configuration to use on next enable */
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uint32_t out_sample_rate;
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uint32_t out_channel_mode;
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uint32_t out_weight;
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uint32_t out_buffer_size;
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struct snd_pcm_substream *substream;
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/* data allocated for various buffers */
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char *data;
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dma_addr_t phys;
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unsigned int pcm_size;
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unsigned int pcm_count;
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unsigned int pcm_irq_pos; /* IRQ position */
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unsigned int pcm_buf_pos; /* position in buffer */
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uint16_t source; /* Encoding source bit mask */
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struct msm_adsp_module *audpre;
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struct msm_adsp_module *audrec;
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struct msm_adsp_module *audplay;
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enum msm_aud_decoder_state dec_state; /* Represents decoder state */
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uint16_t session_id;
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uint32_t out_bits; /* bits per sample */
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const char *module_name;
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unsigned queue_id;
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/* configuration to use on next enable */
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uint32_t samp_rate;
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uint32_t channel_mode;
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uint32_t buffer_size; /* 2048 for mono, 4096 for stereo */
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uint32_t type; /* 0 for PCM ,1 for AAC */
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uint32_t dsp_cnt;
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uint32_t in_head; /* next buffer dsp will write */
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uint32_t in_tail; /* next buffer read() will read */
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uint32_t in_count; /* number of buffers available to read() */
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unsigned short samp_rate_index;
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uint32_t device_events; /* device events interested in */
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int abort; /* set when error, like sample rate mismatch */
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/* audpre settings */
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/* For different sample rate, the coeff might be different. *
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* All the coeff should be passed from user space */
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struct msm_audio_event_callbacks *ops;
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int dir;
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int opened;
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int enabled;
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int running;
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int stopped; /* set when stopped, cleared on flush */
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int eos_ack;
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int mmap_flag;
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int period;
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struct audpp_cmd_cfg_object_params_volume vol_pan;
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};
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/* platform data */
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extern int alsa_dsp_send_buffer(struct msm_audio *prtd,
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unsigned idx, unsigned len);
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extern int audio_dsp_out_enable(struct msm_audio *prtd, int yes);
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extern struct snd_soc_platform_driver msm_soc_platform;
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extern int audrec_encoder_config(struct msm_audio *prtd);
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extern int alsa_audrec_disable(struct msm_audio *prtd);
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extern int alsa_audio_configure(struct msm_audio *prtd);
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extern int alsa_audio_disable(struct msm_audio *prtd);
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extern int alsa_buffer_read(struct msm_audio *prtd, void __user *buf,
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size_t count, loff_t *pos);
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ssize_t alsa_send_buffer(struct msm_audio *prtd, const char __user *buf,
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size_t count, loff_t *pos);
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extern struct msm_adsp_ops alsa_audrec_adsp_ops;
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extern int alsa_in_record_config(struct msm_audio *prtd, int enable);
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#endif /*_MSM_PCM_H*/
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