93 lines
2.2 KiB
C
93 lines
2.2 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) 2010-2011, 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 <sound/apr_audio.h>
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#include <sound/q6asm.h>
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#define MAX_PLAYBACK_SESSIONS 2
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#define MAX_CAPTURE_SESSIONS 1
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#define MAX_COPP 12
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extern int copy_count;
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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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wait_queue_head_t read_wait;
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wait_queue_head_t write_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 {
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struct snd_pcm_substream *substream;
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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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uint16_t source; /* Encoding source bit mask */
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struct audio_client *audio_client;
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uint16_t session_id;
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int copp_id;
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uint32_t samp_rate;
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uint32_t channel_mode;
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uint32_t dsp_cnt;
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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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int enabled;
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int close_ack;
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int cmd_ack;
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atomic_t start;
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atomic_t out_count;
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atomic_t in_count;
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atomic_t out_needed;
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int periods;
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int mmap_flag;
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};
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struct pcm_session {
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unsigned short playback_session[MAX_PLAYBACK_SESSIONS][MAX_COPP];
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unsigned short capture_session[MAX_CAPTURE_SESSIONS][MAX_COPP];
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};
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/* platform data */
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extern struct snd_soc_platform_driver msm_soc_platform;
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extern struct pcm_session session_route;
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#endif /*_MSM_PCM_H*/
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