1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Intel Baytrail SST IPC Support 4 * Copyright (c) 2014, Intel Corporation. 5 */ 6 7 #ifndef __SST_BYT_IPC_H 8 #define __SST_BYT_IPC_H 9 10 #include <linux/types.h> 11 12 struct sst_byt; 13 struct sst_byt_stream; 14 struct sst_pdata; 15 extern struct sst_ops sst_byt_ops; 16 17 18 #define SST_BYT_MAILBOX_OFFSET 0x144000 19 #define SST_BYT_TIMESTAMP_OFFSET (SST_BYT_MAILBOX_OFFSET + 0x800) 20 21 /** 22 * Upfront defined maximum message size that is 23 * expected by the in/out communication pipes in FW. 24 */ 25 #define SST_BYT_IPC_MAX_PAYLOAD_SIZE 200 26 27 /* stream API */ 28 struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id, 29 uint32_t (*get_write_position)(struct sst_byt_stream *stream, 30 void *data), 31 void *data); 32 33 /* stream configuration */ 34 int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream, 35 int bits); 36 int sst_byt_stream_set_channels(struct sst_byt *byt, 37 struct sst_byt_stream *stream, u8 channels); 38 int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream, 39 unsigned int rate); 40 int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream, 41 int codec_type, int stream_type, int operation); 42 int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream, 43 uint32_t buffer_addr, uint32_t buffer_size); 44 int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream); 45 int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream); 46 47 /* stream ALSA trigger operations */ 48 int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream, 49 u32 start_offset); 50 int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream); 51 int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream); 52 int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream); 53 54 int sst_byt_get_dsp_position(struct sst_byt *byt, 55 struct sst_byt_stream *stream, int buffer_size); 56 57 /* init */ 58 int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata); 59 void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata); 60 struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt); 61 int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata); 62 int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata); 63 int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata); 64 65 #endif 66
