1 /* SPDX-License-Identifier: GPL-2.0 2 * 3 * CS35L41 ALSA HDA audio driver 4 * 5 * Copyright 2021 Cirrus Logic, Inc. 6 * 7 * Author: Lucas Tanure <tanureal@opensource.cirrus.com> 8 */ 9 10 #ifndef __CS35L41_HDA_H__ 11 #define __CS35L41_HDA_H__ 12 13 #include <linux/acpi.h> 14 #include <linux/efi.h> 15 #include <linux/regulator/consumer.h> 16 #include <linux/gpio/consumer.h> 17 #include <linux/device.h> 18 #include <sound/cs35l41.h> 19 #include <sound/cs-amp-lib.h> 20 21 #include <linux/firmware/cirrus/cs_dsp.h> 22 #include <linux/firmware/cirrus/wmfw.h> 23 24 #define CS35L41_MAX_ACCEPTABLE_SPI_SPEED_HZ 1000000 25 #define DEFAULT_AMP_GAIN_PCM 17 /* 17.5dB Gain */ 26 #define DEFAULT_AMP_GAIN_PDM 19 /* 19.5dB Gain */ 27 28 struct cs35l41_amp_cal_data { 29 u32 calTarget[2]; 30 u32 calTime[2]; 31 s8 calAmbient; 32 u8 calStatus; 33 u16 calR; 34 } __packed; 35 36 struct cs35l41_amp_efi_data { 37 u32 size; 38 u32 count; 39 struct cs35l41_amp_cal_data data[]; 40 } __packed; 41 42 enum cs35l41_hda_spk_pos { 43 CS35L41_LEFT, 44 CS35L41_RIGHT, 45 }; 46 47 enum cs35l41_hda_gpio_function { 48 CS35L41_NOT_USED, 49 CS35l41_VSPK_SWITCH, 50 CS35L41_INTERRUPT, 51 CS35l41_SYNC, 52 }; 53 54 enum control_bus { 55 I2C, 56 SPI 57 }; 58 59 struct cs35l41_hda { 60 struct device *dev; 61 struct regmap *regmap; 62 struct gpio_desc *reset_gpio; 63 struct gpio_desc *cs_gpio; 64 struct cs35l41_hw_cfg hw_cfg; 65 struct hda_codec *codec; 66 67 int irq; 68 int index; 69 int channel_index; 70 unsigned volatile long irq_errors; 71 const char *amp_name; 72 const char *acpi_subsystem_id; 73 int firmware_type; 74 int speaker_id; 75 struct mutex fw_mutex; 76 struct work_struct fw_load_work; 77 78 struct regmap_irq_chip_data *irq_data; 79 bool firmware_running; 80 bool request_fw_load; 81 bool fw_request_ongoing; 82 bool halo_initialized; 83 bool playback_started; 84 struct cs_dsp cs_dsp; 85 struct acpi_device *dacpi; 86 bool mute_override; 87 enum control_bus control_bus; 88 bool bypass_fw; 89 unsigned int tuning_gain; 90 struct cirrus_amp_cal_data cal_data; 91 bool cal_data_valid; 92 93 }; 94 95 enum halo_state { 96 HALO_STATE_CODE_INIT_DOWNLOAD = 0, 97 HALO_STATE_CODE_START, 98 HALO_STATE_CODE_RUN 99 }; 100 101 extern const struct dev_pm_ops cs35l41_hda_pm_ops; 102 103 int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq, 104 struct regmap *regmap, enum control_bus control_bus); 105 void cs35l41_hda_remove(struct device *dev); 106 int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id); 107 int cs35l41_hda_parse_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id); 108 109 #endif /*__CS35L41_HDA_H__*/ 110