// SPDX-License-Identifier: GPL-2.0 /* * jh7110_tdm.c -- StarFive JH7110 TDM driver * * Copyright (C) 2023 StarFive Technology Co., Ltd. * * Author: Walker Chen <[email protected]> */ #include <linux/clk.h> #include <linux/device.h> #include <linux/dmaengine.h> #include <linux/module.h> #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/reset.h> #include <linux/types.h> #include <sound/dmaengine_pcm.h> #include <sound/initval.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dai.h> #define TDM_PCMGBCR … #define PCMGBCR_ENABLE … #define CLKPOL_BIT … #define ELM_BIT … #define SYNCM_BIT … #define MS_BIT … #define TDM_PCMTXCR … #define PCMTXCR_TXEN … #define IFL_BIT … #define WL_BIT … #define SSCALE_BIT … #define SL_BIT … #define LRJ_BIT … #define TDM_PCMRXCR … #define PCMRXCR_RXEN … #define TDM_PCMDIV … #define JH7110_TDM_FIFO … #define JH7110_TDM_FIFO_DEPTH … enum TDM_MASTER_SLAVE_MODE { … }; enum TDM_CLKPOL { … }; enum TDM_ELM { … }; enum TDM_SYNCM { … }; enum TDM_IFL { … }; enum TDM_WL { … }; enum TDM_SL { … }; enum TDM_LRJ { … }; struct tdm_chan_cfg { … }; struct jh7110_tdm_dev { … }; static inline u32 jh7110_tdm_readl(struct jh7110_tdm_dev *tdm, u16 reg) { … } static inline void jh7110_tdm_writel(struct jh7110_tdm_dev *tdm, u16 reg, u32 val) { … } static void jh7110_tdm_save_context(struct jh7110_tdm_dev *tdm, struct snd_pcm_substream *substream) { … } static void jh7110_tdm_start(struct jh7110_tdm_dev *tdm, struct snd_pcm_substream *substream) { … } static void jh7110_tdm_stop(struct jh7110_tdm_dev *tdm, struct snd_pcm_substream *substream) { … } static int jh7110_tdm_syncdiv(struct jh7110_tdm_dev *tdm) { … } static int jh7110_tdm_config(struct jh7110_tdm_dev *tdm, struct snd_pcm_substream *substream) { … } static void jh7110_tdm_clk_disable(struct jh7110_tdm_dev *tdm) { … } static int jh7110_tdm_clk_enable(struct jh7110_tdm_dev *tdm) { … } static int jh7110_tdm_runtime_suspend(struct device *dev) { … } static int jh7110_tdm_runtime_resume(struct device *dev) { … } static int jh7110_tdm_system_suspend(struct device *dev) { … } static int jh7110_tdm_system_resume(struct device *dev) { … } static const struct snd_soc_component_driver jh7110_tdm_component = …; static int jh7110_tdm_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) { … } static int jh7110_tdm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int jh7110_tdm_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { … } static int jh7110_tdm_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) { … } static int jh7110_tdm_dai_probe(struct snd_soc_dai *dai) { … } static const struct snd_soc_dai_ops jh7110_tdm_dai_ops = …; #define JH7110_TDM_RATES … #define JH7110_TDM_FORMATS … static struct snd_soc_dai_driver jh7110_tdm_dai = …; static const struct snd_pcm_hardware jh7110_pcm_hardware = …; static const struct snd_dmaengine_pcm_config jh7110_dmaengine_pcm_config = …; static void jh7110_tdm_init_params(struct jh7110_tdm_dev *tdm) { … } static int jh7110_tdm_clk_reset_get(struct platform_device *pdev, struct jh7110_tdm_dev *tdm) { … } static int jh7110_tdm_probe(struct platform_device *pdev) { … } static void jh7110_tdm_dev_remove(struct platform_device *pdev) { … } static const struct of_device_id jh7110_tdm_of_match[] = …; MODULE_DEVICE_TABLE(of, jh7110_tdm_of_match); static const struct dev_pm_ops jh7110_tdm_pm_ops = …; static struct platform_driver jh7110_tdm_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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