// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) /* * SoundWire AMD Manager driver * * Copyright 2023-24 Advanced Micro Devices, Inc. */ #include <linux/completion.h> #include <linux/cleanup.h> #include <linux/device.h> #include <linux/io.h> #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/soundwire/sdw.h> #include <linux/soundwire/sdw_registers.h> #include <linux/pm_runtime.h> #include <linux/wait.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include "bus.h" #include "amd_init.h" #include "amd_manager.h" #define DRV_NAME … #define to_amd_sdw(b) … static int amd_init_sdw_manager(struct amd_sdw_manager *amd_manager) { … } static int amd_enable_sdw_manager(struct amd_sdw_manager *amd_manager) { … } static int amd_disable_sdw_manager(struct amd_sdw_manager *amd_manager) { … } static void amd_enable_sdw_interrupts(struct amd_sdw_manager *amd_manager) { … } static void amd_disable_sdw_interrupts(struct amd_sdw_manager *amd_manager) { … } static int amd_deinit_sdw_manager(struct amd_sdw_manager *amd_manager) { … } static void amd_sdw_set_frameshape(struct amd_sdw_manager *amd_manager) { … } static void amd_sdw_wake_enable(struct amd_sdw_manager *amd_manager, bool enable) { … } static void amd_sdw_ctl_word_prep(u32 *lower_word, u32 *upper_word, struct sdw_msg *msg, int cmd_offset) { … } static u64 amd_sdw_send_cmd_get_resp(struct amd_sdw_manager *amd_manager, u32 lower_data, u32 upper_data) { … } static enum sdw_command_response amd_program_scp_addr(struct amd_sdw_manager *amd_manager, struct sdw_msg *msg) { … } static int amd_prep_msg(struct amd_sdw_manager *amd_manager, struct sdw_msg *msg) { … } static enum sdw_command_response amd_sdw_fill_msg_resp(struct amd_sdw_manager *amd_manager, struct sdw_msg *msg, u64 response, int offset) { … } static unsigned int _amd_sdw_xfer_msg(struct amd_sdw_manager *amd_manager, struct sdw_msg *msg, int cmd_offset) { … } static enum sdw_command_response amd_sdw_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg) { … } static void amd_sdw_fill_slave_status(struct amd_sdw_manager *amd_manager, u16 index, u32 status) { … } static void amd_sdw_process_ping_status(u64 response, struct amd_sdw_manager *amd_manager) { … } static void amd_sdw_read_and_process_ping_status(struct amd_sdw_manager *amd_manager) { … } static u32 amd_sdw_read_ping_status(struct sdw_bus *bus) { … } static int amd_sdw_compute_params(struct sdw_bus *bus) { … } static int amd_sdw_port_params(struct sdw_bus *bus, struct sdw_port_params *p_params, unsigned int bank) { … } static int amd_sdw_transport_params(struct sdw_bus *bus, struct sdw_transport_params *params, enum sdw_reg_bank bank) { … } static int amd_sdw_port_enable(struct sdw_bus *bus, struct sdw_enable_ch *enable_ch, unsigned int bank) { … } static int sdw_master_read_amd_prop(struct sdw_bus *bus) { … } static int amd_prop_read(struct sdw_bus *bus) { … } static const struct sdw_master_port_ops amd_sdw_port_ops = …; static const struct sdw_master_ops amd_sdw_ops = …; static int amd_sdw_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int amd_sdw_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int amd_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int direction) { … } static int amd_pcm_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int direction) { … } static void *amd_get_sdw_stream(struct snd_soc_dai *dai, int direction) { … } static const struct snd_soc_dai_ops amd_sdw_dai_ops = …; static const struct snd_soc_component_driver amd_sdw_dai_component = …; static int amd_sdw_register_dais(struct amd_sdw_manager *amd_manager) { … } static void amd_sdw_update_slave_status_work(struct work_struct *work) { … } static void amd_sdw_update_slave_status(u32 status_change_0to7, u32 status_change_8to11, struct amd_sdw_manager *amd_manager) { … } static void amd_sdw_process_wake_event(struct amd_sdw_manager *amd_manager) { … } static void amd_sdw_irq_thread(struct work_struct *work) { … } int amd_sdw_manager_start(struct amd_sdw_manager *amd_manager) { … } static int amd_sdw_manager_probe(struct platform_device *pdev) { … } static void amd_sdw_manager_remove(struct platform_device *pdev) { … } static int amd_sdw_clock_stop(struct amd_sdw_manager *amd_manager) { … } static int amd_sdw_clock_stop_exit(struct amd_sdw_manager *amd_manager) { … } static int amd_resume_child_device(struct device *dev, void *data) { … } static int __maybe_unused amd_pm_prepare(struct device *dev) { … } static int __maybe_unused amd_suspend(struct device *dev) { … } static int __maybe_unused amd_suspend_runtime(struct device *dev) { … } static int __maybe_unused amd_resume_runtime(struct device *dev) { … } static const struct dev_pm_ops amd_pm = …; static struct platform_driver amd_sdw_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS(…) …;
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