// SPDX-License-Identifier: GPL-2.0-only /* * IMG SPDIF input controller driver * * Copyright (C) 2015 Imagination Technologies Ltd. * * Author: Damien Horsley <[email protected]> */ #include <linux/clk.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/reset.h> #include <sound/core.h> #include <sound/dmaengine_pcm.h> #include <sound/initval.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #define IMG_SPDIF_IN_RX_FIFO_OFFSET … #define IMG_SPDIF_IN_CTL … #define IMG_SPDIF_IN_CTL_LOCKLO_MASK … #define IMG_SPDIF_IN_CTL_LOCKLO_SHIFT … #define IMG_SPDIF_IN_CTL_LOCKHI_MASK … #define IMG_SPDIF_IN_CTL_LOCKHI_SHIFT … #define IMG_SPDIF_IN_CTL_TRK_MASK … #define IMG_SPDIF_IN_CTL_TRK_SHIFT … #define IMG_SPDIF_IN_CTL_SRD_MASK … #define IMG_SPDIF_IN_CTL_SRD_SHIFT … #define IMG_SPDIF_IN_CTL_SRT_MASK … #define IMG_SPDIF_IN_STATUS … #define IMG_SPDIF_IN_STATUS_SAM_MASK … #define IMG_SPDIF_IN_STATUS_SAM_SHIFT … #define IMG_SPDIF_IN_STATUS_LOCK_MASK … #define IMG_SPDIF_IN_STATUS_LOCK_SHIFT … #define IMG_SPDIF_IN_CLKGEN … #define IMG_SPDIF_IN_CLKGEN_NOM_MASK … #define IMG_SPDIF_IN_CLKGEN_NOM_SHIFT … #define IMG_SPDIF_IN_CLKGEN_HLD_MASK … #define IMG_SPDIF_IN_CLKGEN_HLD_SHIFT … #define IMG_SPDIF_IN_CSL … #define IMG_SPDIF_IN_CSH … #define IMG_SPDIF_IN_CSH_MASK … #define IMG_SPDIF_IN_CSH_SHIFT … #define IMG_SPDIF_IN_SOFT_RESET … #define IMG_SPDIF_IN_SOFT_RESET_MASK … #define IMG_SPDIF_IN_ACLKGEN_START … #define IMG_SPDIF_IN_ACLKGEN_NOM_MASK … #define IMG_SPDIF_IN_ACLKGEN_NOM_SHIFT … #define IMG_SPDIF_IN_ACLKGEN_HLD_MASK … #define IMG_SPDIF_IN_ACLKGEN_HLD_SHIFT … #define IMG_SPDIF_IN_ACLKGEN_TRK_MASK … #define IMG_SPDIF_IN_ACLKGEN_TRK_SHIFT … #define IMG_SPDIF_IN_NUM_ACLKGEN … struct img_spdif_in { … }; static int img_spdif_in_runtime_suspend(struct device *dev) { … } static int img_spdif_in_runtime_resume(struct device *dev) { … } static inline void img_spdif_in_writel(struct img_spdif_in *spdif, u32 val, u32 reg) { … } static inline u32 img_spdif_in_readl(struct img_spdif_in *spdif, u32 reg) { … } static inline void img_spdif_in_aclkgen_writel(struct img_spdif_in *spdif, u32 index) { … } static int img_spdif_in_check_max_rate(struct img_spdif_in *spdif, unsigned int sample_rate, unsigned long *actual_freq) { … } static int img_spdif_in_do_clkgen_calc(unsigned int rate, unsigned int *pnom, unsigned int *phld, unsigned long clk_rate) { … } static int img_spdif_in_do_clkgen_single(struct img_spdif_in *spdif, unsigned int rate) { … } static int img_spdif_in_do_clkgen_multi(struct img_spdif_in *spdif, unsigned int multi_freqs[]) { … } static int img_spdif_in_iec958_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int img_spdif_in_get_status_mask(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_get_status(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_info_multi_freq(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int img_spdif_in_get_multi_freq(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_set_multi_freq(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_info_lock_freq(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int img_spdif_in_get_lock_freq(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *uc) { … } static int img_spdif_in_info_trk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int img_spdif_in_get_trk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_set_trk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_info_lock(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int img_spdif_in_get_lock_acquire(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_set_lock_acquire(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_get_lock_release(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int img_spdif_in_set_lock_release(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static struct snd_kcontrol_new img_spdif_in_controls[] = …; static int img_spdif_in_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { … } static int img_spdif_in_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int img_spdif_in_dai_probe(struct snd_soc_dai *dai) { … } static const struct snd_soc_dai_ops img_spdif_in_dai_ops = …; static struct snd_soc_dai_driver img_spdif_in_dai = …; static const struct snd_soc_component_driver img_spdif_in_component = …; static int img_spdif_in_probe(struct platform_device *pdev) { … } static void img_spdif_in_dev_remove(struct platform_device *pdev) { … } #ifdef CONFIG_PM_SLEEP static int img_spdif_in_suspend(struct device *dev) { … } static int img_spdif_in_resume(struct device *dev) { … } #endif static const struct of_device_id img_spdif_in_of_match[] = …; MODULE_DEVICE_TABLE(of, img_spdif_in_of_match); static const struct dev_pm_ops img_spdif_in_pm_ops = …; static struct platform_driver img_spdif_in_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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