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This is required to support CS35L41 calibration. By default, speaker protection firmware will be loaded, if available. However, different firmware is required to run the calibration sequence, so it is necessary to add support to be able to unload, switch and reload firmware. This patch adds 2 ALSA Controls for each amp: "DSP1 Firmware Load" "DSP1 Firmware Type" "DSP1 Firmware Load" can be used to unload and load the firmware. "DSP1 Firmware Type" can be used to switch the target firmware to be loaded by "DSP1 Firmware Load" Since loading firmware can add new ALSA controls, it is necessary to ensure the firmware loading is run asynchronously from the ALSA control itself to prevent deadlocks. Note: When switching between firmwares, an ALSA control is only added if it has not previously existed. If it had existed previously, it will be re-enabled instead. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220630002335.366545-14-vitalyr@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
88 lines
1.7 KiB
C
88 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* CS35L41 ALSA HDA audio driver
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*
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* Copyright 2021 Cirrus Logic, Inc.
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*
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* Author: Lucas Tanure <tanureal@opensource.cirrus.com>
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*/
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#ifndef __CS35L41_HDA_H__
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#define __CS35L41_HDA_H__
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#include <linux/efi.h>
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#include <linux/regulator/consumer.h>
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#include <linux/gpio/consumer.h>
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#include <linux/device.h>
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#include <sound/cs35l41.h>
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#include <linux/firmware/cirrus/cs_dsp.h>
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#include <linux/firmware/cirrus/wmfw.h>
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struct cs35l41_amp_cal_data {
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u32 calTarget[2];
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u32 calTime[2];
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s8 calAmbient;
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u8 calStatus;
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u16 calR;
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} __packed;
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struct cs35l41_amp_efi_data {
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u32 size;
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u32 count;
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struct cs35l41_amp_cal_data data[];
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} __packed;
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enum cs35l41_hda_spk_pos {
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CS35l41_LEFT,
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CS35l41_RIGHT,
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};
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enum cs35l41_hda_gpio_function {
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CS35L41_NOT_USED,
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CS35l41_VSPK_SWITCH,
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CS35L41_INTERRUPT,
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CS35l41_SYNC,
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};
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struct cs35l41_hda {
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struct device *dev;
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struct regmap *regmap;
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struct gpio_desc *reset_gpio;
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struct cs35l41_hw_cfg hw_cfg;
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struct hda_codec *codec;
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int irq;
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int index;
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int channel_index;
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unsigned volatile long irq_errors;
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const char *amp_name;
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const char *acpi_subsystem_id;
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int firmware_type;
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int speaker_id;
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struct mutex fw_mutex;
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struct work_struct fw_load_work;
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struct regmap_irq_chip_data *irq_data;
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bool firmware_running;
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bool request_fw_load;
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bool fw_request_ongoing;
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bool halo_initialized;
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bool playback_started;
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struct cs_dsp cs_dsp;
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};
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enum halo_state {
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HALO_STATE_CODE_INIT_DOWNLOAD = 0,
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HALO_STATE_CODE_START,
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HALO_STATE_CODE_RUN
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};
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extern const struct dev_pm_ops cs35l41_hda_pm_ops;
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int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
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struct regmap *regmap);
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void cs35l41_hda_remove(struct device *dev);
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#endif /*__CS35L41_HDA_H__*/
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