1 /* 2 * sst_platform.h - Intel MID Platform driver header file 3 * 4 * Copyright (C) 2010 Intel Corp 5 * Author: Vinod Koul <vinod.koul@intel.com> 6 * Author: Harsha Priya <priya.harsha@intel.com> 7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 8 * 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. 12 * 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. 17 * 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. 21 * 22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 23 * 24 * 25 */ 26 27 #ifndef __SST_PLATFORMDRV_H__ 28 #define __SST_PLATFORMDRV_H__ 29 30 #include "sst_dsp.h" 31 32 #define SST_MONO 1 33 #define SST_STEREO 2 34 #define SST_MAX_CAP 5 35 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 47 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; 54 }; 55 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, 62 }; 63 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, 74 }; 75 76 enum sst_stream_ops { 77 STREAM_OPS_PLAYBACK = 0, 78 STREAM_OPS_CAPTURE, 79 }; 80 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, 88 }; 89 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; 100 }; 101 102 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; 110 }; 111 112 struct sst_compress_cb { 113 void *param; 114 void (*compr_cb)(void *param); 115 }; 116 117 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); 127 int (*set_metadata) (unsigned int str_id, 128 struct snd_compr_metadata *mdata); 129 130 }; 131 132 struct sst_ops { 133 int (*open) (struct sst_stream_params *str_param); 134 int (*device_control) (int cmd, void *arg); 135 int (*close) (unsigned int str_id); 136 }; 137 138 struct sst_runtime_stream { 139 int stream_status; 140 unsigned int id; 141 size_t bytes_written; 142 struct pcm_stream_info stream_info; 143 struct sst_ops *ops; 144 struct compress_sst_ops *compr_ops; 145 spinlock_t status_lock; 146 }; 147 148 struct sst_device { 149 char *name; 150 struct device *dev; 151 struct sst_ops *ops; 152 struct compress_sst_ops *compr_ops; 153 }; 154 155 int sst_register_dsp(struct sst_device *sst); 156 int sst_unregister_dsp(struct sst_device *sst); 157 #endif 158