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1 /*
2 * sst_platform.h - Intel MID Platform driver header file
4 * Copyright (C) 2010 Intel Corp
5 * Author: Vinod Koul <vinod.koul@intel.com>
6 * Author: Harsha Priya <priya.harsha@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
27 #ifndef __SST_PLATFORMDRV_H__
28 #define __SST_PLATFORMDRV_H__
30 #include "sst_dsp.h"
32 #define SST_MONO 1
33 #define SST_STEREO 2
34 #define SST_MAX_CAP 5
36 #define SST_MIN_RATE 8000
37 #define SST_MAX_RATE 48000
38 #define SST_MIN_CHANNEL 1
39 #define SST_MAX_CHANNEL 5
40 #define SST_MAX_BUFFER (800*1024)
41 #define SST_MIN_BUFFER (800*1024)
42 #define SST_MIN_PERIOD_BYTES 32
43 #define SST_MAX_PERIOD_BYTES SST_MAX_BUFFER
44 #define SST_MIN_PERIODS 2
45 #define SST_MAX_PERIODS (1024*2)
46 #define SST_FIFO_SIZE 0
48 struct pcm_stream_info {
49 int str_id;
50 void *mad_substream;
51 void (*period_elapsed) (void *mad_substream);
52 unsigned long long buffer_ptr;
53 int sfreq;
56 enum sst_drv_status {
57 SST_PLATFORM_INIT = 1,
58 SST_PLATFORM_STARTED,
59 SST_PLATFORM_RUNNING,
60 SST_PLATFORM_PAUSED,
61 SST_PLATFORM_DROPPED,
64 enum sst_controls {
65 SST_SND_ALLOC = 0x00,
66 SST_SND_PAUSE = 0x01,
67 SST_SND_RESUME = 0x02,
68 SST_SND_DROP = 0x03,
69 SST_SND_FREE = 0x04,
70 SST_SND_BUFFER_POINTER = 0x05,
71 SST_SND_STREAM_INIT = 0x06,
72 SST_SND_START = 0x07,
73 SST_MAX_CONTROLS = 0x07,
76 enum sst_stream_ops {
77 STREAM_OPS_PLAYBACK = 0,
78 STREAM_OPS_CAPTURE,
81 enum sst_audio_device_type {
82 SND_SST_DEVICE_HEADSET = 1,
83 SND_SST_DEVICE_IHF,
84 SND_SST_DEVICE_VIBRA,
85 SND_SST_DEVICE_HAPTIC,
86 SND_SST_DEVICE_CAPTURE,
87 SND_SST_DEVICE_COMPRESS,
90 /* PCM Parameters */
91 struct sst_pcm_params {
92 u16 codec; /* codec type */
93 u8 num_chan; /* 1=Mono, 2=Stereo */
94 u8 pcm_wd_sz; /* 16/24 - bit*/
95 u32 reserved; /* Bitrate in bits per second */
96 u32 sfreq; /* Sampling rate in Hz */
97 u32 ring_buffer_size;
98 u32 period_count; /* period elapsed in samples*/
99 u32 ring_buffer_addr;
102 struct sst_stream_params {
103 u32 result;
104 u32 stream_id;
105 u8 codec;
106 u8 ops;
107 u8 stream_type;
108 u8 device_type;
109 struct sst_pcm_params sparams;
112 struct sst_compress_cb {
113 void *param;
114 void (*compr_cb)(void *param);
117 struct compress_sst_ops {
118 const char *name;
119 int (*open) (struct snd_sst_params *str_params,
120 struct sst_compress_cb *cb);
121 int (*control) (unsigned int cmd, unsigned int str_id);
122 int (*tstamp) (unsigned int str_id, struct snd_compr_tstamp *tstamp);
123 int (*ack) (unsigned int str_id, unsigned long bytes);
124 int (*close) (unsigned int str_id);
125 int (*get_caps) (struct snd_compr_caps *caps);
126 int (*get_codec_caps) (struct snd_compr_codec_caps *codec);
130 struct sst_ops {
131 int (*open) (struct sst_stream_params *str_param);
132 int (*device_control) (int cmd, void *arg);
133 int (*close) (unsigned int str_id);
136 struct sst_runtime_stream {
137 int stream_status;
138 unsigned int id;
139 size_t bytes_written;
140 struct pcm_stream_info stream_info;
141 struct sst_ops *ops;
142 struct compress_sst_ops *compr_ops;
143 spinlock_t status_lock;
146 struct sst_device {
147 char *name;
148 struct device *dev;
149 struct sst_ops *ops;
150 struct compress_sst_ops *compr_ops;
153 int sst_register_dsp(struct sst_device *sst);
154 int sst_unregister_dsp(struct sst_device *sst);
155 #endif