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review.evervolv.com / android_kernel_htc_msm8960 / 09f4e66df1dd0cbc46efdb8b51e6b00a30b70d08 / . / sound / soc / msm / msm-pcm.h
blob: e7ddd30737eda005eabcb2a226dfb43727abcee8 [file] [log] [blame]
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]1/* sound/soc/msm/msm-pcm.h
2 *
3 * Copyright (C) 2008 Google, Inc.
4 * Copyright (C) 2008 HTC Corporation
5 * Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
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.
14 *
15 * See the GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, you can find it at http://www.fsf.org.
18 */
19
20#ifndef _MSM_PCM_H
21#define _MSM_PCM_H
22
23
24#include <mach/qdsp5/qdsp5audppcmdi.h>
25#include <mach/qdsp5/qdsp5audppmsg.h>
26#include <mach/qdsp5/qdsp5audreccmdi.h>
27#include <mach/qdsp5/qdsp5audrecmsg.h>
28#include <mach/qdsp5/qdsp5audpreproccmdi.h>
29#include <mach/qdsp5/qdsp5audpreprocmsg.h>
30
31#include <../arch/arm/mach-msm/qdsp5/adsp.h>
32#include <../arch/arm/mach-msm/qdsp5/audmgr.h>
33
34
35#define FRAME_NUM (8)
36#define FRAME_SIZE (2052 * 2)
37#define MONO_DATA_SIZE (2048)
38#define STEREO_DATA_SIZE (MONO_DATA_SIZE * 2)
39#define CAPTURE_DMASZ (FRAME_SIZE * FRAME_NUM)
40
41#define BUFSZ (960 * 5)
42#define PLAYBACK_DMASZ (BUFSZ * 2)
43
44#define MSM_PLAYBACK_DEFAULT_VOLUME 0 /* 0dB */
45#define MSM_PLAYBACK_DEFAULT_PAN 0
46
47#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE
48#define USE_CHANNELS_MIN 1
49#define USE_CHANNELS_MAX 2
50/* Support unconventional sample rates 12000, 24000 as well */
51#define USE_RATE \
52 (SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT)
53#define USE_RATE_MIN 8000
54#define USE_RATE_MAX 48000
55#define MAX_BUFFER_PLAYBACK_SIZE \
56 (4800*4)
57/* 2048 frames (Mono), 1024 frames (Stereo) */
58#define CAPTURE_SIZE 4096
59#define MAX_BUFFER_CAPTURE_SIZE (4096*4)
60#define MAX_PERIOD_SIZE BUFSZ
61#define USE_PERIODS_MAX 1024
62#define USE_PERIODS_MIN 1
63
64
65#define MAX_DB (16)
66#define MIN_DB (-50)
67#define PCMPLAYBACK_DECODERID 5
68
69/* 0xFFFFFFFF Indicates not to be used for audio data copy */
70#define BUF_INVALID_LEN 0xFFFFFFFF
71
72extern int copy_count;
73extern int intcnt;
74
75struct msm_volume {
76 bool update;
77 int volume; /* Volume parameter, in dB Scale */
78 int pan;
79};
80
81struct buffer {
82 void *data;
83 unsigned size;
84 unsigned used;
85 unsigned addr;
86};
87
88struct buffer_rec {
89 void *data;
90 unsigned int size;
91 unsigned int read;
92 unsigned int addr;
93};
94
95struct audio_locks {
96 struct mutex lock;
97 struct mutex write_lock;
98 struct mutex read_lock;
99 spinlock_t read_dsp_lock;
100 spinlock_t write_dsp_lock;
101 spinlock_t mixer_lock;
102 wait_queue_head_t read_wait;
103 wait_queue_head_t write_wait;
104 wait_queue_head_t eos_wait;
105};
106
107extern struct audio_locks the_locks;
108
109struct msm_audio_event_callbacks {
110 /* event is called from interrupt context when a message
111 * arrives from the DSP.
112 */
113 void (*playback)(void *);
114 void (*capture)(void *);
115};
116
117
118struct msm_audio {
119 struct buffer out[2];
120 struct buffer_rec in[8];
121
122 uint8_t out_head;
123 uint8_t out_tail;
124 uint8_t out_needed; /* number of buffers the dsp is waiting for */
125 atomic_t out_bytes;
126
127 /* configuration to use on next enable */
128 uint32_t out_sample_rate;
129 uint32_t out_channel_mode;
130 uint32_t out_weight;
131 uint32_t out_buffer_size;
132
133 struct audmgr audmgr;
134 struct snd_pcm_substream *playback_substream;
135 struct snd_pcm_substream *capture_substream;
136
137 /* data allocated for various buffers */
138 char *data;
139 dma_addr_t phys;
140
141 unsigned int pcm_size;
142 unsigned int pcm_count;
143 unsigned int pcm_irq_pos; /* IRQ position */
144 unsigned int pcm_buf_pos; /* position in buffer */
145
146 struct msm_adsp_module *audpre;
147 struct msm_adsp_module *audrec;
148
149 /* configuration to use on next enable */
150 uint32_t samp_rate;
151 uint32_t channel_mode;
152 uint32_t buffer_size; /* 2048 for mono, 4096 for stereo */
153 uint32_t type; /* 0 for PCM ,1 for AAC */
154 uint32_t dsp_cnt;
155 uint32_t in_head; /* next buffer dsp will write */
156 uint32_t in_tail; /* next buffer read() will read */
157 uint32_t in_count; /* number of buffers available to read() */
158
159 unsigned short samp_rate_index;
160
161 /* audpre settings */
162 audpreproc_cmd_cfg_agc_params tx_agc_cfg;
163 audpreproc_cmd_cfg_ns_params ns_cfg;
164 /* For different sample rate, the coeff might be different. *
165 * All the coeff should be passed from user space */
166 audpreproc_cmd_cfg_iir_tuning_filter_params iir_cfg;
167
168 struct msm_audio_event_callbacks *ops;
169
170 int dir;
171 int opened;
172 int enabled;
173 int running;
174 int stopped; /* set when stopped, cleared on flush */
175 int eos_ack;
176};
177
178
179
180/* platform data */
181extern int audio_dsp_out_enable(struct msm_audio *prtd, int yes);
182extern struct snd_soc_platform_driver msm_soc_platform;
183
184int audrec_encoder_config(struct msm_audio *prtd);
185extern void alsa_get_dsp_frames(struct msm_audio *prtd);
186extern int alsa_rec_dsp_enable(struct msm_audio *prtd, int enable);
187extern int alsa_audrec_disable(struct msm_audio *prtd);
188extern int alsa_audio_configure(struct msm_audio *prtd);
189extern int alsa_audio_disable(struct msm_audio *prtd);
190extern int alsa_adsp_configure(struct msm_audio *prtd);
191extern int alsa_buffer_read(struct msm_audio *prtd, void __user *buf,
192 size_t count, loff_t *pos);
193ssize_t alsa_send_buffer(struct msm_audio *prtd, const char __user *buf,
194 size_t count, loff_t *pos);
195int msm_audio_volume_update(unsigned id,
196 int volume, int pan);
197extern struct audio_locks the_locks;
198extern struct msm_volume msm_vol_ctl;
199
200#endif /*_MSM_PCM_H*/