sound/soc/intel/baytrail/sst-baytrail-ipc.h

   1 /*
   2  * Intel Baytrail SST IPC Support
   3  * Copyright (c) 2014, Intel Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  */
  14
  15 #ifndef __SST_BYT_IPC_H
  16 #define __SST_BYT_IPC_H
  17
  18 #include <linux/types.h>
  19
  20 struct sst_byt;
  21 struct sst_byt_stream;
  22 struct sst_pdata;
  23 extern struct sst_ops sst_byt_ops;
  24
  25
  26 #define SST_BYT_MAILBOX_OFFSET          0x144000
  27 #define SST_BYT_TIMESTAMP_OFFSET        (SST_BYT_MAILBOX_OFFSET + 0x800)
  28
  29 /**
  30  * Upfront defined maximum message size that is
  31  * expected by the in/out communication pipes in FW.
  32  */
  33 #define SST_BYT_IPC_MAX_PAYLOAD_SIZE    200
  34
  35 /* stream API */
  36 struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id,
  37         uint32_t (*get_write_position)(struct sst_byt_stream *stream,
  38                                        void *data),
  39         void *data);
  40
  41 /* stream configuration */
  42 int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream,
  43                             int bits);
  44 int sst_byt_stream_set_channels(struct sst_byt *byt,
  45                                 struct sst_byt_stream *stream, u8 channels);
  46 int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream,
  47                             unsigned int rate);
  48 int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream,
  49                         int codec_type, int stream_type, int operation);
  50 int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream,
  51                           uint32_t buffer_addr, uint32_t buffer_size);
  52 int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream);
  53 int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream);
  54
  55 /* stream ALSA trigger operations */
  56 int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream,
  57                          u32 start_offset);
  58 int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream);
  59 int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream);
  60 int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream);
  61
  62 int sst_byt_get_dsp_position(struct sst_byt *byt,
  63                              struct sst_byt_stream *stream, int buffer_size);
  64
  65 /* init */
  66 int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata);
  67 void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata);
  68 struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt);
  69 int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata);
  70 int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata);
  71 int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata);
  72
  73 #endif