// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2015 Andrea Venturi * Andrea Venturi <[email protected]> * * Copyright (C) 2016 Maxime Ripard * Maxime Ripard <[email protected]> */ #include <linux/clk.h> #include <linux/dmaengine.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/reset.h> #include <sound/dmaengine_pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dai.h> #define SUN4I_I2S_CTRL_REG … #define SUN4I_I2S_CTRL_SDO_EN_MASK … #define SUN4I_I2S_CTRL_SDO_EN(sdo) … #define SUN4I_I2S_CTRL_MODE_MASK … #define SUN4I_I2S_CTRL_MODE_SLAVE … #define SUN4I_I2S_CTRL_MODE_MASTER … #define SUN4I_I2S_CTRL_TX_EN … #define SUN4I_I2S_CTRL_RX_EN … #define SUN4I_I2S_CTRL_GL_EN … #define SUN4I_I2S_FMT0_REG … #define SUN4I_I2S_FMT0_LRCLK_POLARITY_MASK … #define SUN4I_I2S_FMT0_LRCLK_POLARITY_INVERTED … #define SUN4I_I2S_FMT0_LRCLK_POLARITY_NORMAL … #define SUN4I_I2S_FMT0_BCLK_POLARITY_MASK … #define SUN4I_I2S_FMT0_BCLK_POLARITY_INVERTED … #define SUN4I_I2S_FMT0_BCLK_POLARITY_NORMAL … #define SUN4I_I2S_FMT0_SR_MASK … #define SUN4I_I2S_FMT0_SR(sr) … #define SUN4I_I2S_FMT0_WSS_MASK … #define SUN4I_I2S_FMT0_WSS(wss) … #define SUN4I_I2S_FMT0_FMT_MASK … #define SUN4I_I2S_FMT0_FMT_RIGHT_J … #define SUN4I_I2S_FMT0_FMT_LEFT_J … #define SUN4I_I2S_FMT0_FMT_I2S … #define SUN4I_I2S_FMT1_REG … #define SUN4I_I2S_FMT1_REG_SEXT_MASK … #define SUN4I_I2S_FMT1_REG_SEXT(sext) … #define SUN4I_I2S_FIFO_TX_REG … #define SUN4I_I2S_FIFO_RX_REG … #define SUN4I_I2S_FIFO_CTRL_REG … #define SUN4I_I2S_FIFO_CTRL_FLUSH_TX … #define SUN4I_I2S_FIFO_CTRL_FLUSH_RX … #define SUN4I_I2S_FIFO_CTRL_TX_MODE_MASK … #define SUN4I_I2S_FIFO_CTRL_TX_MODE(mode) … #define SUN4I_I2S_FIFO_CTRL_RX_MODE_MASK … #define SUN4I_I2S_FIFO_CTRL_RX_MODE(mode) … #define SUN4I_I2S_FIFO_STA_REG … #define SUN4I_I2S_DMA_INT_CTRL_REG … #define SUN4I_I2S_DMA_INT_CTRL_TX_DRQ_EN … #define SUN4I_I2S_DMA_INT_CTRL_RX_DRQ_EN … #define SUN4I_I2S_INT_STA_REG … #define SUN4I_I2S_CLK_DIV_REG … #define SUN4I_I2S_CLK_DIV_MCLK_EN … #define SUN4I_I2S_CLK_DIV_BCLK_MASK … #define SUN4I_I2S_CLK_DIV_BCLK(bclk) … #define SUN4I_I2S_CLK_DIV_MCLK_MASK … #define SUN4I_I2S_CLK_DIV_MCLK(mclk) … #define SUN4I_I2S_TX_CNT_REG … #define SUN4I_I2S_RX_CNT_REG … #define SUN4I_I2S_TX_CHAN_SEL_REG … #define SUN4I_I2S_CHAN_SEL_MASK … #define SUN4I_I2S_CHAN_SEL(num_chan) … #define SUN4I_I2S_TX_CHAN_MAP_REG … #define SUN4I_I2S_TX_CHAN_MAP(chan, sample) … #define SUN4I_I2S_RX_CHAN_SEL_REG … #define SUN4I_I2S_RX_CHAN_MAP_REG … /* Defines required for sun8i-h3 support */ #define SUN8I_I2S_CTRL_BCLK_OUT … #define SUN8I_I2S_CTRL_LRCK_OUT … #define SUN8I_I2S_CTRL_MODE_MASK … #define SUN8I_I2S_CTRL_MODE_RIGHT … #define SUN8I_I2S_CTRL_MODE_LEFT … #define SUN8I_I2S_CTRL_MODE_PCM … #define SUN8I_I2S_FMT0_LRCLK_POLARITY_MASK … #define SUN8I_I2S_FMT0_LRCLK_POLARITY_INVERTED … #define SUN8I_I2S_FMT0_LRCLK_POLARITY_NORMAL … #define SUN8I_I2S_FMT0_LRCK_PERIOD_MASK … #define SUN8I_I2S_FMT0_LRCK_PERIOD(period) … #define SUN8I_I2S_FMT0_BCLK_POLARITY_MASK … #define SUN8I_I2S_FMT0_BCLK_POLARITY_INVERTED … #define SUN8I_I2S_FMT0_BCLK_POLARITY_NORMAL … #define SUN8I_I2S_FMT1_REG_SEXT_MASK … #define SUN8I_I2S_FMT1_REG_SEXT(sext) … #define SUN8I_I2S_INT_STA_REG … #define SUN8I_I2S_FIFO_TX_REG … #define SUN8I_I2S_CHAN_CFG_REG … #define SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM_MASK … #define SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM(chan) … #define SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM_MASK … #define SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM(chan) … #define SUN8I_I2S_TX_CHAN_MAP_REG … #define SUN8I_I2S_TX_CHAN_SEL_REG … #define SUN8I_I2S_TX_CHAN_OFFSET_MASK … #define SUN8I_I2S_TX_CHAN_OFFSET(offset) … #define SUN8I_I2S_TX_CHAN_EN_MASK … #define SUN8I_I2S_TX_CHAN_EN(num_chan) … #define SUN8I_I2S_RX_CHAN_SEL_REG … #define SUN8I_I2S_RX_CHAN_MAP_REG … /* Defines required for sun50i-h6 support */ #define SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET_MASK … #define SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET(offset) … #define SUN50I_H6_I2S_TX_CHAN_SEL_MASK … #define SUN50I_H6_I2S_TX_CHAN_SEL(chan) … #define SUN50I_H6_I2S_TX_CHAN_EN_MASK … #define SUN50I_H6_I2S_TX_CHAN_EN(num_chan) … #define SUN50I_H6_I2S_TX_CHAN_SEL_REG(pin) … #define SUN50I_H6_I2S_TX_CHAN_MAP0_REG(pin) … #define SUN50I_H6_I2S_TX_CHAN_MAP1_REG(pin) … #define SUN50I_H6_I2S_RX_CHAN_SEL_REG … #define SUN50I_H6_I2S_RX_CHAN_MAP0_REG … #define SUN50I_H6_I2S_RX_CHAN_MAP1_REG … #define SUN50I_R329_I2S_RX_CHAN_MAP0_REG … #define SUN50I_R329_I2S_RX_CHAN_MAP1_REG … #define SUN50I_R329_I2S_RX_CHAN_MAP2_REG … #define SUN50I_R329_I2S_RX_CHAN_MAP3_REG … struct sun4i_i2s; /** * struct sun4i_i2s_quirks - Differences between SoC variants. * @has_reset: SoC needs reset deasserted. * @pcm_formats: available PCM formats. * @reg_offset_txdata: offset of the tx fifo. * @sun4i_i2s_regmap: regmap config to use. * @field_clkdiv_mclk_en: regmap field to enable mclk output. * @field_fmt_wss: regmap field to set word select size. * @field_fmt_sr: regmap field to set sample resolution. * @num_din_pins: input pins * @num_dout_pins: output pins (currently set but unused) * @bclk_dividers: bit clock dividers array * @num_bclk_dividers: number of bit clock dividers * @mclk_dividers: mclk dividers array * @num_mclk_dividers: number of mclk dividers * @get_bclk_parent_rate: callback to get bclk parent rate * @get_sr: callback to get sample resolution * @get_wss: callback to get word select size * @set_chan_cfg: callback to set channel configuration * @set_fmt: callback to set format */ struct sun4i_i2s_quirks { … }; struct sun4i_i2s { … }; struct sun4i_i2s_clk_div { … }; static const struct sun4i_i2s_clk_div sun4i_i2s_bclk_div[] = …; static const struct sun4i_i2s_clk_div sun4i_i2s_mclk_div[] = …; static const struct sun4i_i2s_clk_div sun8i_i2s_clk_div[] = …; static unsigned long sun4i_i2s_get_bclk_parent_rate(const struct sun4i_i2s *i2s) { … } static unsigned long sun8i_i2s_get_bclk_parent_rate(const struct sun4i_i2s *i2s) { … } static int sun4i_i2s_get_bclk_div(struct sun4i_i2s *i2s, unsigned long parent_rate, unsigned int sampling_rate, unsigned int channels, unsigned int word_size) { … } static int sun4i_i2s_get_mclk_div(struct sun4i_i2s *i2s, unsigned long parent_rate, unsigned long mclk_rate) { … } static int sun4i_i2s_oversample_rates[] = …; static bool sun4i_i2s_oversample_is_valid(unsigned int oversample) { … } static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, unsigned int rate, unsigned int slots, unsigned int slot_width) { … } static int sun4i_i2s_get_sr(unsigned int width) { … } static int sun4i_i2s_get_wss(unsigned int width) { … } static int sun8i_i2s_get_sr_wss(unsigned int width) { … } static int sun4i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, unsigned int channels, unsigned int slots, unsigned int slot_width) { … } static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, unsigned int channels, unsigned int slots, unsigned int slot_width) { … } static int sun50i_h6_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, unsigned int channels, unsigned int slots, unsigned int slot_width) { … } static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int sun4i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s, unsigned int fmt) { … } static int sun8i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s, unsigned int fmt) { … } static int sun50i_h6_i2s_set_soc_fmt(const struct sun4i_i2s *i2s, unsigned int fmt) { … } static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { … } static void sun4i_i2s_start_capture(struct sun4i_i2s *i2s) { … } static void sun4i_i2s_start_playback(struct sun4i_i2s *i2s) { … } static void sun4i_i2s_stop_capture(struct sun4i_i2s *i2s) { … } static void sun4i_i2s_stop_playback(struct sun4i_i2s *i2s) { … } static int sun4i_i2s_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { … } static int sun4i_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { … } static int sun4i_i2s_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { … } static int sun4i_i2s_dai_probe(struct snd_soc_dai *dai) { … } static int sun4i_i2s_dai_startup(struct snd_pcm_substream *sub, struct snd_soc_dai *dai) { … } static const struct snd_soc_dai_ops sun4i_i2s_dai_ops = …; #define SUN4I_FORMATS_ALL … static struct snd_soc_dai_driver sun4i_i2s_dai = …; static const struct snd_soc_component_driver sun4i_i2s_component = …; static bool sun4i_i2s_rd_reg(struct device *dev, unsigned int reg) { … } static bool sun4i_i2s_wr_reg(struct device *dev, unsigned int reg) { … } static bool sun4i_i2s_volatile_reg(struct device *dev, unsigned int reg) { … } static bool sun8i_i2s_rd_reg(struct device *dev, unsigned int reg) { … } static bool sun8i_i2s_volatile_reg(struct device *dev, unsigned int reg) { … } static const struct reg_default sun4i_i2s_reg_defaults[] = …; static const struct reg_default sun8i_i2s_reg_defaults[] = …; static const struct reg_default sun50i_h6_i2s_reg_defaults[] = …; static const struct regmap_config sun4i_i2s_regmap_config = …; static const struct regmap_config sun8i_i2s_regmap_config = …; static const struct regmap_config sun50i_h6_i2s_regmap_config = …; static int sun4i_i2s_runtime_resume(struct device *dev) { … } static int sun4i_i2s_runtime_suspend(struct device *dev) { … } #define SUN4I_FORMATS_A10 … #define SUN4I_FORMATS_H3 … static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = …; static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = …; /* * This doesn't describe the TDM controller documented in the A83t * datasheet, but the three undocumented I2S controller that use the * older design. */ static const struct sun4i_i2s_quirks sun8i_a83t_i2s_quirks = …; static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = …; static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = …; static const struct sun4i_i2s_quirks sun50i_h6_i2s_quirks = …; static const struct sun4i_i2s_quirks sun50i_r329_i2s_quirks = …; static int sun4i_i2s_init_regmap_fields(struct device *dev, struct sun4i_i2s *i2s) { … } static int sun4i_i2s_probe(struct platform_device *pdev) { … } static void sun4i_i2s_remove(struct platform_device *pdev) { … } static const struct of_device_id sun4i_i2s_match[] = …; MODULE_DEVICE_TABLE(of, sun4i_i2s_match); static const struct dev_pm_ops sun4i_i2s_pm_ops = …; static struct platform_driver sun4i_i2s_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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