/* * Intel Baytrail SST IPC Support * Copyright (c) 2014, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. */ #ifndef __SST_BYT_IPC_H #define __SST_BYT_IPC_H #include <linux/types.h> struct sst_byt; struct sst_byt_stream; struct sst_pdata; extern struct sst_ops sst_byt_ops; #define SST_BYT_MAILBOX_OFFSET 0x144000 #define SST_BYT_TIMESTAMP_OFFSET (SST_BYT_MAILBOX_OFFSET + 0x800) /** * Upfront defined maximum message size that is * expected by the in/out communication pipes in FW. */ #define SST_BYT_IPC_MAX_PAYLOAD_SIZE 200 /* stream API */ struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id, uint32_t (*get_write_position)(struct sst_byt_stream *stream, void *data), void *data); /* stream configuration */ int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream, int bits); int sst_byt_stream_set_channels(struct sst_byt *byt, struct sst_byt_stream *stream, u8 channels); int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream, unsigned int rate); int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream, int codec_type, int stream_type, int operation); int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream, uint32_t buffer_addr, uint32_t buffer_size); int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream); int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream); /* stream ALSA trigger operations */ int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream, u32 start_offset); int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream); int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream); int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream); int sst_byt_get_dsp_position(struct sst_byt *byt, struct sst_byt_stream *stream, int buffer_size); /* init */ int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata); void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata); struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt); int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata); int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata); int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata); #endif