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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2014-2015 Broadcom Corporation */
#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_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
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