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__
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 {
51 void (*period_elapsed) (void *mad_substream);
52 unsigned long long buffer_ptr;
57 SST_PLATFORM_INIT = 1,
67 SST_SND_RESUME = 0x02,
70 SST_SND_BUFFER_POINTER = 0x05,
71 SST_SND_STREAM_INIT = 0x06,
73 SST_MAX_CONTROLS = 0x07,
77 STREAM_OPS_PLAYBACK = 0,
81 enum sst_audio_device_type {
82 SND_SST_DEVICE_HEADSET = 1,
85 SND_SST_DEVICE_HAPTIC,
86 SND_SST_DEVICE_CAPTURE,
87 SND_SST_DEVICE_COMPRESS,
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 */
98 u32 period_count; /* period elapsed in samples*/
102 struct sst_stream_params {
109 struct sst_pcm_params sparams;
112 struct sst_compress_cb {
114 void (*compr_cb)(void *param);
117 struct compress_sst_ops {
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);
127 int (*set_metadata) (unsigned int str_id,
128 struct snd_compr_metadata *mdata);
133 int (*open) (struct sst_stream_params *str_param);
134 int (*device_control) (int cmd, void *arg);
135 int (*close) (unsigned int str_id);
138 struct sst_runtime_stream {
141 size_t bytes_written;
142 struct pcm_stream_info stream_info;
144 struct compress_sst_ops *compr_ops;
145 spinlock_t status_lock;
152 struct compress_sst_ops *compr_ops;
155 int sst_register_dsp(struct sst_device *sst);
156 int sst_unregister_dsp(struct sst_device *sst);