[linux-2.6-block.git] / sound / soc / bcm / cygnus-ssp.h

/*
 * Copyright (C) 2014-2015 Broadcom Corporation
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
#ifndef __CYGNUS_SSP_H__
#define __CYGNUS_SSP_H__

#define CYGNUS_TDM_DAI_MAX_SLOTS 16

#define CYGNUS_MAX_PLAYBACK_PORTS 4
#define CYGNUS_MAX_CAPTURE_PORTS 3
#define CYGNUS_MAX_I2S_PORTS 3
#define CYGNUS_MAX_PORTS  CYGNUS_MAX_PLAYBACK_PORTS
#define CYGNUS_AUIDO_MAX_NUM_CLKS 3

#define CYGNUS_SSP_FRAMEBITS_DIV 1

#define CYGNUS_SSPMODE_I2S 0
#define CYGNUS_SSPMODE_TDM 1
#define CYGNUS_SSPMODE_UNKNOWN -1

#define CYGNUS_SSP_CLKSRC_PLL      0

/* Max string length of our dt property names */
#define PROP_LEN_MAX 40

struct ringbuf_regs {
	unsigned rdaddr;
	unsigned wraddr;
	unsigned baseaddr;
	unsigned endaddr;
	unsigned fmark;   /* freemark for play, fullmark for caputure */
	unsigned period_bytes;
	unsigned buf_size;
};

#define RINGBUF_REG_PLAYBACK(num) ((struct ringbuf_regs) { \
	.rdaddr = SRC_RBUF_ ##num## _RDADDR_OFFSET, \
	.wraddr = SRC_RBUF_ ##num## _WRADDR_OFFSET, \
	.baseaddr = SRC_RBUF_ ##num## _BASEADDR_OFFSET, \
	.endaddr = SRC_RBUF_ ##num## _ENDADDR_OFFSET, \
	.fmark = SRC_RBUF_ ##num## _FREE_MARK_OFFSET, \
	.period_bytes = 0, \
	.buf_size = 0, \
})

#define RINGBUF_REG_CAPTURE(num) ((struct ringbuf_regs)  { \
	.rdaddr = DST_RBUF_ ##num## _RDADDR_OFFSET, \
	.wraddr = DST_RBUF_ ##num## _WRADDR_OFFSET, \
	.baseaddr = DST_RBUF_ ##num## _BASEADDR_OFFSET, \
	.endaddr = DST_RBUF_ ##num## _ENDADDR_OFFSET, \
	.fmark = DST_RBUF_ ##num## _FULL_MARK_OFFSET, \
	.period_bytes = 0, \
	.buf_size = 0, \
})

enum cygnus_audio_port_type {
	PORT_TDM,
	PORT_SPDIF,
};

struct cygnus_ssp_regs {
	u32 i2s_stream_cfg;
	u32 i2s_cfg;
	u32 i2s_cap_stream_cfg;
	u32 i2s_cap_cfg;
	u32 i2s_mclk_cfg;

	u32 bf_destch_ctrl;
	u32 bf_destch_cfg;
	u32 bf_sourcech_ctrl;
	u32 bf_sourcech_cfg;
	u32 bf_sourcech_grp;
};

struct cygnus_track_clk {
	bool cap_en;
	bool play_en;
	bool cap_clk_en;
	bool play_clk_en;
};

struct cygnus_aio_port {
	int portnum;
	int mode;
	bool is_slave;
	int streams_on;   /* will be 0 if both capture and play are off */
	int fsync_width;
	int port_type;

	u32 mclk;
	u32 lrclk;
	u32 bit_per_frame;
	u32 pll_clk_num;

	struct cygnus_audio *cygaud;
	struct cygnus_ssp_regs regs;

	struct ringbuf_regs play_rb_regs;
	struct ringbuf_regs capture_rb_regs;

	struct snd_pcm_substream *play_stream;
	struct snd_pcm_substream *capture_stream;

	struct cygnus_track_clk clk_trace;
};


struct cygnus_audio {
	struct cygnus_aio_port  portinfo[CYGNUS_MAX_PORTS];

	int irq_num;
	void __iomem *audio;
	struct device *dev;
	void __iomem *i2s_in;

	struct clk *audio_clk[CYGNUS_AUIDO_MAX_NUM_CLKS];
	int active_ports;
	unsigned long vco_rate;
};

extern int cygnus_ssp_get_mode(struct snd_soc_dai *cpu_dai);
extern int cygnus_ssp_add_pll_tweak_controls(struct snd_soc_pcm_runtime *rtd);
extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,
						int len);
extern int cygnus_soc_platform_register(struct device *dev,
					struct cygnus_audio *cygaud);
extern int cygnus_soc_platform_unregister(struct device *dev);
extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,
	int len);
#endif
Commit	Line	Data
a6ee05d9 SR	1	/*
	2	* Copyright (C) 2014-2015 Broadcom Corporation
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License as
	6	* published by the Free Software Foundation version 2.
	7	*
	8	* This program is distributed "as is" WITHOUT ANY WARRANTY of any
	9	* kind, whether express or implied; without even the implied warranty
	10	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*/
	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	/* Max string length of our dt property names */
	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; /* freemark for play, fullmark for caputure */
	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; /* will be 0 if both capture and play are off */
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