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13 #ifndef __CYGNUS_SSP_H__
14 #define __CYGNUS_SSP_H__
15
16 #define CYGNUS_TDM_DAI_MAX_SLOTS 16
17
18 #define CYGNUS_MAX_PLAYBACK_PORTS 4
19 #define CYGNUS_MAX_CAPTURE_PORTS 3
20 #define CYGNUS_MAX_I2S_PORTS 3
21 #define CYGNUS_MAX_PORTS CYGNUS_MAX_PLAYBACK_PORTS
22 #define CYGNUS_AUIDO_MAX_NUM_CLKS 3
23
24 #define CYGNUS_SSP_FRAMEBITS_DIV 1
25
26 #define CYGNUS_SSPMODE_I2S 0
27 #define CYGNUS_SSPMODE_TDM 1
28 #define CYGNUS_SSPMODE_UNKNOWN -1
29
30 #define CYGNUS_SSP_CLKSRC_PLL 0
31
32
33 #define PROP_LEN_MAX 40
34
35 struct ringbuf_regs {
36 unsigned rdaddr;
37 unsigned wraddr;
38 unsigned baseaddr;
39 unsigned endaddr;
40 unsigned fmark;
41 unsigned period_bytes;
42 unsigned buf_size;
43 };
44
45 #define RINGBUF_REG_PLAYBACK(num) ((struct ringbuf_regs) { \
46 .rdaddr = SRC_RBUF_ ##num## _RDADDR_OFFSET, \
47 .wraddr = SRC_RBUF_ ##num## _WRADDR_OFFSET, \
48 .baseaddr = SRC_RBUF_ ##num## _BASEADDR_OFFSET, \
49 .endaddr = SRC_RBUF_ ##num## _ENDADDR_OFFSET, \
50 .fmark = SRC_RBUF_ ##num## _FREE_MARK_OFFSET, \
51 .period_bytes = 0, \
52 .buf_size = 0, \
53 })
54
55 #define RINGBUF_REG_CAPTURE(num) ((struct ringbuf_regs) { \
56 .rdaddr = DST_RBUF_ ##num## _RDADDR_OFFSET, \
57 .wraddr = DST_RBUF_ ##num## _WRADDR_OFFSET, \
58 .baseaddr = DST_RBUF_ ##num## _BASEADDR_OFFSET, \
59 .endaddr = DST_RBUF_ ##num## _ENDADDR_OFFSET, \
60 .fmark = DST_RBUF_ ##num## _FULL_MARK_OFFSET, \
61 .period_bytes = 0, \
62 .buf_size = 0, \
63 })
64
65 enum cygnus_audio_port_type {
66 PORT_TDM,
67 PORT_SPDIF,
68 };
69
70 struct cygnus_ssp_regs {
71 u32 i2s_stream_cfg;
72 u32 i2s_cfg;
73 u32 i2s_cap_stream_cfg;
74 u32 i2s_cap_cfg;
75 u32 i2s_mclk_cfg;
76
77 u32 bf_destch_ctrl;
78 u32 bf_destch_cfg;
79 u32 bf_sourcech_ctrl;
80 u32 bf_sourcech_cfg;
81 u32 bf_sourcech_grp;
82 };
83
84 struct cygnus_track_clk {
85 bool cap_en;
86 bool play_en;
87 bool cap_clk_en;
88 bool play_clk_en;
89 };
90
91 struct cygnus_aio_port {
92 int portnum;
93 int mode;
94 bool is_slave;
95 int streams_on;
96 int fsync_width;
97 int port_type;
98
99 u32 mclk;
100 u32 lrclk;
101 u32 bit_per_frame;
102 u32 pll_clk_num;
103
104 struct cygnus_audio *cygaud;
105 struct cygnus_ssp_regs regs;
106
107 struct ringbuf_regs play_rb_regs;
108 struct ringbuf_regs capture_rb_regs;
109
110 struct snd_pcm_substream *play_stream;
111 struct snd_pcm_substream *capture_stream;
112
113 struct cygnus_track_clk clk_trace;
114 };
115
116
117 struct cygnus_audio {
118 struct cygnus_aio_port portinfo[CYGNUS_MAX_PORTS];
119
120 int irq_num;
121 void __iomem *audio;
122 struct device *dev;
123 void __iomem *i2s_in;
124
125 struct clk *audio_clk[CYGNUS_AUIDO_MAX_NUM_CLKS];
126 int active_ports;
127 unsigned long vco_rate;
128 };
129
130 extern int cygnus_ssp_get_mode(struct snd_soc_dai *cpu_dai);
131 extern int cygnus_ssp_add_pll_tweak_controls(struct snd_soc_pcm_runtime *rtd);
132 extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,
133 int len);
134 extern int cygnus_soc_platform_register(struct device *dev,
135 struct cygnus_audio *cygaud);
136 extern int cygnus_soc_platform_unregister(struct device *dev);
137 extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,
138 int len);
139 #endif