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129 lines
3.1 KiB
129 lines
3.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* Copyright (C) 2014-2015 Broadcom Corporation */ |
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#ifndef __CYGNUS_SSP_H__ |
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#define __CYGNUS_SSP_H__ |
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#define CYGNUS_TDM_DAI_MAX_SLOTS 16 |
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#define CYGNUS_MAX_PLAYBACK_PORTS 4 |
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#define CYGNUS_MAX_CAPTURE_PORTS 3 |
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#define CYGNUS_MAX_I2S_PORTS 3 |
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#define CYGNUS_MAX_PORTS CYGNUS_MAX_PLAYBACK_PORTS |
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#define CYGNUS_AUIDO_MAX_NUM_CLKS 3 |
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#define CYGNUS_SSP_FRAMEBITS_DIV 1 |
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#define CYGNUS_SSPMODE_I2S 0 |
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#define CYGNUS_SSPMODE_TDM 1 |
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#define CYGNUS_SSPMODE_UNKNOWN -1 |
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#define CYGNUS_SSP_CLKSRC_PLL 0 |
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/* Max string length of our dt property names */ |
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#define PROP_LEN_MAX 40 |
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struct ringbuf_regs { |
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unsigned rdaddr; |
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unsigned wraddr; |
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unsigned baseaddr; |
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unsigned endaddr; |
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unsigned fmark; /* freemark for play, fullmark for caputure */ |
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unsigned period_bytes; |
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unsigned buf_size; |
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}; |
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#define RINGBUF_REG_PLAYBACK(num) ((struct ringbuf_regs) { \ |
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.rdaddr = SRC_RBUF_ ##num## _RDADDR_OFFSET, \ |
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.wraddr = SRC_RBUF_ ##num## _WRADDR_OFFSET, \ |
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.baseaddr = SRC_RBUF_ ##num## _BASEADDR_OFFSET, \ |
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.endaddr = SRC_RBUF_ ##num## _ENDADDR_OFFSET, \ |
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.fmark = SRC_RBUF_ ##num## _FREE_MARK_OFFSET, \ |
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.period_bytes = 0, \ |
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.buf_size = 0, \ |
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}) |
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#define RINGBUF_REG_CAPTURE(num) ((struct ringbuf_regs) { \ |
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.rdaddr = DST_RBUF_ ##num## _RDADDR_OFFSET, \ |
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.wraddr = DST_RBUF_ ##num## _WRADDR_OFFSET, \ |
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.baseaddr = DST_RBUF_ ##num## _BASEADDR_OFFSET, \ |
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.endaddr = DST_RBUF_ ##num## _ENDADDR_OFFSET, \ |
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.fmark = DST_RBUF_ ##num## _FULL_MARK_OFFSET, \ |
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.period_bytes = 0, \ |
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.buf_size = 0, \ |
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}) |
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enum cygnus_audio_port_type { |
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PORT_TDM, |
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PORT_SPDIF, |
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}; |
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struct cygnus_ssp_regs { |
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u32 i2s_stream_cfg; |
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u32 i2s_cfg; |
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u32 i2s_cap_stream_cfg; |
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u32 i2s_cap_cfg; |
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u32 i2s_mclk_cfg; |
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u32 bf_destch_ctrl; |
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u32 bf_destch_cfg; |
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u32 bf_sourcech_ctrl; |
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u32 bf_sourcech_cfg; |
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u32 bf_sourcech_grp; |
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}; |
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struct cygnus_track_clk { |
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bool cap_en; |
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bool play_en; |
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bool cap_clk_en; |
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bool play_clk_en; |
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}; |
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struct cygnus_aio_port { |
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int portnum; |
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int mode; |
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bool is_slave; |
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int streams_on; /* will be 0 if both capture and play are off */ |
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int fsync_width; |
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int port_type; |
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u32 mclk; |
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u32 lrclk; |
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u32 bit_per_frame; |
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u32 pll_clk_num; |
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struct cygnus_audio *cygaud; |
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struct cygnus_ssp_regs regs; |
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struct ringbuf_regs play_rb_regs; |
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struct ringbuf_regs capture_rb_regs; |
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struct snd_pcm_substream *play_stream; |
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struct snd_pcm_substream *capture_stream; |
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struct cygnus_track_clk clk_trace; |
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}; |
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struct cygnus_audio { |
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struct cygnus_aio_port portinfo[CYGNUS_MAX_PORTS]; |
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int irq_num; |
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void __iomem *audio; |
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struct device *dev; |
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void __iomem *i2s_in; |
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struct clk *audio_clk[CYGNUS_AUIDO_MAX_NUM_CLKS]; |
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int active_ports; |
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unsigned long vco_rate; |
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}; |
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extern int cygnus_ssp_get_mode(struct snd_soc_dai *cpu_dai); |
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extern int cygnus_ssp_add_pll_tweak_controls(struct snd_soc_pcm_runtime *rtd); |
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extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai, |
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int len); |
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extern int cygnus_soc_platform_register(struct device *dev, |
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struct cygnus_audio *cygaud); |
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extern int cygnus_soc_platform_unregister(struct device *dev); |
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extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai, |
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int len); |
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#endif
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