1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* Copyright (C) 2014-2015 Broadcom Corporation */
3 #ifndef __CYGNUS_SSP_H__
4 #define __CYGNUS_SSP_H__
6 #define CYGNUS_TDM_DAI_MAX_SLOTS 16
8 #define CYGNUS_MAX_PLAYBACK_PORTS 4
9 #define CYGNUS_MAX_CAPTURE_PORTS 3
10 #define CYGNUS_MAX_I2S_PORTS 3
11 #define CYGNUS_MAX_PORTS CYGNUS_MAX_PLAYBACK_PORTS
12 #define CYGNUS_AUIDO_MAX_NUM_CLKS 3
14 #define CYGNUS_SSP_FRAMEBITS_DIV 1
16 #define CYGNUS_SSPMODE_I2S 0
17 #define CYGNUS_SSPMODE_TDM 1
18 #define CYGNUS_SSPMODE_UNKNOWN -1
20 #define CYGNUS_SSP_CLKSRC_PLL 0
22 /* Max string length of our dt property names */
23 #define PROP_LEN_MAX 40
30 unsigned fmark; /* freemark for play, fullmark for caputure */
31 unsigned period_bytes;
35 #define RINGBUF_REG_PLAYBACK(num) ((struct ringbuf_regs) { \
36 .rdaddr = SRC_RBUF_ ##num## _RDADDR_OFFSET, \
37 .wraddr = SRC_RBUF_ ##num## _WRADDR_OFFSET, \
38 .baseaddr = SRC_RBUF_ ##num## _BASEADDR_OFFSET, \
39 .endaddr = SRC_RBUF_ ##num## _ENDADDR_OFFSET, \
40 .fmark = SRC_RBUF_ ##num## _FREE_MARK_OFFSET, \
45 #define RINGBUF_REG_CAPTURE(num) ((struct ringbuf_regs) { \
46 .rdaddr = DST_RBUF_ ##num## _RDADDR_OFFSET, \
47 .wraddr = DST_RBUF_ ##num## _WRADDR_OFFSET, \
48 .baseaddr = DST_RBUF_ ##num## _BASEADDR_OFFSET, \
49 .endaddr = DST_RBUF_ ##num## _ENDADDR_OFFSET, \
50 .fmark = DST_RBUF_ ##num## _FULL_MARK_OFFSET, \
55 enum cygnus_audio_port_type {
60 struct cygnus_ssp_regs {
63 u32 i2s_cap_stream_cfg;
74 struct cygnus_track_clk {
81 struct cygnus_aio_port {
85 int streams_on; /* will be 0 if both capture and play are off */
94 struct cygnus_audio *cygaud;
95 struct cygnus_ssp_regs regs;
97 struct ringbuf_regs play_rb_regs;
98 struct ringbuf_regs capture_rb_regs;
100 struct snd_pcm_substream *play_stream;
101 struct snd_pcm_substream *capture_stream;
103 struct cygnus_track_clk clk_trace;
107 struct cygnus_audio {
108 struct cygnus_aio_port portinfo[CYGNUS_MAX_PORTS];
113 void __iomem *i2s_in;
115 struct clk *audio_clk[CYGNUS_AUIDO_MAX_NUM_CLKS];
117 unsigned long vco_rate;
120 extern int cygnus_ssp_get_mode(struct snd_soc_dai *cpu_dai);
121 extern int cygnus_ssp_add_pll_tweak_controls(struct snd_soc_pcm_runtime *rtd);
122 extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,
124 extern int cygnus_soc_platform_register(struct device *dev,
125 struct cygnus_audio *cygaud);
126 extern int cygnus_soc_platform_unregister(struct device *dev);
127 extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,