// SPDX-License-Identifier: GPL-2.0-only // ALSA SoC Audio Layer - Rockchip I2S/TDM Controller driver // Copyright (c) 2018 Rockchip Electronics Co. Ltd. // Author: Sugar Zhang <[email protected]> // Author: Nicolas Frattaroli <[email protected]> #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/reset.h> #include <linux/spinlock.h> #include <sound/dmaengine_pcm.h> #include <sound/pcm_params.h> #include "rockchip_i2s_tdm.h" #define DRV_NAME … #define DEFAULT_MCLK_FS … #define CH_GRP_MAX … #define MULTIPLEX_CH_MAX … #define TRCM_TXRX … #define TRCM_TX … #define TRCM_RX … struct txrx_config { … }; struct rk_i2s_soc_data { … }; struct rk_i2s_tdm_dev { … }; static int to_ch_num(unsigned int val) { … } static void i2s_tdm_disable_unprepare_mclk(struct rk_i2s_tdm_dev *i2s_tdm) { … } /** * i2s_tdm_prepare_enable_mclk - prepare to enable all mclks, disable them on * failure. * @i2s_tdm: rk_i2s_tdm_dev struct * * This function attempts to enable all mclk clocks, but cleans up after * itself on failure. Guarantees to balance its calls. * * Returns success (0) or negative errno. */ static int i2s_tdm_prepare_enable_mclk(struct rk_i2s_tdm_dev *i2s_tdm) { … } static int __maybe_unused i2s_tdm_runtime_suspend(struct device *dev) { … } static int __maybe_unused i2s_tdm_runtime_resume(struct device *dev) { … } static inline struct rk_i2s_tdm_dev *to_info(struct snd_soc_dai *dai) { … } /* * Makes sure that both tx and rx are reset at the same time to sync lrck * when clk_trcm > 0. */ static void rockchip_snd_xfer_sync_reset(struct rk_i2s_tdm_dev *i2s_tdm) { … } static void rockchip_snd_reset(struct reset_control *rc) { … } static void rockchip_snd_xfer_clear(struct rk_i2s_tdm_dev *i2s_tdm, unsigned int clr) { … } static inline void rockchip_enable_tde(struct regmap *regmap) { … } static inline void rockchip_disable_tde(struct regmap *regmap) { … } static inline void rockchip_enable_rde(struct regmap *regmap) { … } static inline void rockchip_disable_rde(struct regmap *regmap) { … } /* only used when clk_trcm > 0 */ static void rockchip_snd_txrxctrl(struct snd_pcm_substream *substream, struct snd_soc_dai *dai, int on) { … } static void rockchip_snd_txctrl(struct rk_i2s_tdm_dev *i2s_tdm, int on) { … } static void rockchip_snd_rxctrl(struct rk_i2s_tdm_dev *i2s_tdm, int on) { … } static int rockchip_i2s_tdm_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) { … } static void rockchip_i2s_tdm_xfer_pause(struct snd_pcm_substream *substream, struct rk_i2s_tdm_dev *i2s_tdm) { … } static void rockchip_i2s_tdm_xfer_resume(struct snd_pcm_substream *substream, struct rk_i2s_tdm_dev *i2s_tdm) { … } static int rockchip_i2s_ch_to_io(unsigned int ch, bool substream_capture) { … } static int rockchip_i2s_io_multiplex(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int rockchip_i2s_trcm_mode(struct snd_pcm_substream *substream, struct snd_soc_dai *dai, unsigned int div_bclk, unsigned int div_lrck, unsigned int fmt) { … } static int rockchip_i2s_tdm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int rockchip_i2s_tdm_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { … } static int rockchip_i2s_tdm_dai_probe(struct snd_soc_dai *dai) { … } static int rockchip_dai_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { … } static int rockchip_i2s_tdm_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) { … } static const struct snd_soc_dai_ops rockchip_i2s_tdm_dai_ops = …; static const struct snd_soc_component_driver rockchip_i2s_tdm_component = …; static bool rockchip_i2s_tdm_wr_reg(struct device *dev, unsigned int reg) { … } static bool rockchip_i2s_tdm_rd_reg(struct device *dev, unsigned int reg) { … } static bool rockchip_i2s_tdm_volatile_reg(struct device *dev, unsigned int reg) { … } static bool rockchip_i2s_tdm_precious_reg(struct device *dev, unsigned int reg) { … } static const struct reg_default rockchip_i2s_tdm_reg_defaults[] = …; static const struct regmap_config rockchip_i2s_tdm_regmap_config = …; static int common_soc_init(struct device *dev, u32 addr) { … } static const struct txrx_config px30_txrx_config[] = …; static const struct txrx_config rk1808_txrx_config[] = …; static const struct txrx_config rk3308_txrx_config[] = …; static const struct txrx_config rk3568_txrx_config[] = …; static const struct txrx_config rv1126_txrx_config[] = …; static const struct rk_i2s_soc_data px30_i2s_soc_data = …; static const struct rk_i2s_soc_data rk1808_i2s_soc_data = …; static const struct rk_i2s_soc_data rk3308_i2s_soc_data = …; static const struct rk_i2s_soc_data rk3568_i2s_soc_data = …; static const struct rk_i2s_soc_data rv1126_i2s_soc_data = …; static const struct of_device_id rockchip_i2s_tdm_match[] = …; static const struct snd_soc_dai_driver i2s_tdm_dai = …; static int rockchip_i2s_tdm_init_dai(struct rk_i2s_tdm_dev *i2s_tdm) { … } static int rockchip_i2s_tdm_path_check(struct rk_i2s_tdm_dev *i2s_tdm, int num, bool is_rx_path) { … } static void rockchip_i2s_tdm_tx_path_config(struct rk_i2s_tdm_dev *i2s_tdm, int num) { … } static void rockchip_i2s_tdm_rx_path_config(struct rk_i2s_tdm_dev *i2s_tdm, int num) { … } static void rockchip_i2s_tdm_path_config(struct rk_i2s_tdm_dev *i2s_tdm, int num, bool is_rx_path) { … } static int rockchip_i2s_tdm_path_prepare(struct rk_i2s_tdm_dev *i2s_tdm, struct device_node *np, bool is_rx_path) { … } static int rockchip_i2s_tdm_tx_path_prepare(struct rk_i2s_tdm_dev *i2s_tdm, struct device_node *np) { … } static int rockchip_i2s_tdm_rx_path_prepare(struct rk_i2s_tdm_dev *i2s_tdm, struct device_node *np) { … } static int rockchip_i2s_tdm_probe(struct platform_device *pdev) { … } static void rockchip_i2s_tdm_remove(struct platform_device *pdev) { … } static int __maybe_unused rockchip_i2s_tdm_suspend(struct device *dev) { … } static int __maybe_unused rockchip_i2s_tdm_resume(struct device *dev) { … } static const struct dev_pm_ops rockchip_i2s_tdm_pm_ops = …; static struct platform_driver rockchip_i2s_tdm_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS(…) …; MODULE_DEVICE_TABLE(of, rockchip_i2s_tdm_match);
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