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 CS35L41_CENTER, 46 }; 47 48 enum cs35l41_hda_gpio_function { 49 CS35L41_NOT_USED, 50 CS35l41_VSPK_SWITCH, 51 CS35L41_INTERRUPT, 52 CS35l41_SYNC, 53 }; 54 55 enum control_bus { 56 I2C, 57 SPI 58 }; 59 60 struct cs35l41_hda { 61 struct device *dev; 62 struct regmap *regmap; 63 struct gpio_desc *reset_gpio; 64 struct gpio_desc *cs_gpio; 65 struct cs35l41_hw_cfg hw_cfg; 66 struct hda_codec *codec; 67 68 int irq; 69 int index; 70 int channel_index; 71 unsigned volatile long irq_errors; 72 const char *amp_name; 73 const char *acpi_subsystem_id; 74 int firmware_type; 75 int speaker_id; 76 struct mutex fw_mutex; 77 struct work_struct fw_load_work; 78 79 struct regmap_irq_chip_data *irq_data; 80 bool firmware_running; 81 bool request_fw_load; 82 bool fw_request_ongoing; 83 bool halo_initialized; 84 bool playback_started; 85 struct cs_dsp cs_dsp; 86 struct acpi_device *dacpi; 87 bool mute_override; 88 enum control_bus control_bus; 89 bool bypass_fw; 90 unsigned int tuning_gain; 91 struct cirrus_amp_cal_data cal_data; 92 bool cal_data_valid; 93 94 }; 95 96 enum halo_state { 97 HALO_STATE_CODE_INIT_DOWNLOAD = 0, 98 HALO_STATE_CODE_START, 99 HALO_STATE_CODE_RUN 100 }; 101 102 extern const struct dev_pm_ops cs35l41_hda_pm_ops; 103 104 int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq, 105 struct regmap *regmap, enum control_bus control_bus); 106 void cs35l41_hda_remove(struct device *dev); 107 int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id); 108 int cs35l41_hda_parse_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id); 109 110 #endif /*__CS35L41_HDA_H__*/ 111