/* Copyright (c) 2018 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ /* NPCX-specific APM module for Chrome EC */ #ifndef __CROS_EC_APM_CHIP_H #define __CROS_EC_APM_CHIP_H #include "common.h" /* MIX indirect registers. */ #define APM_INDIRECT_MIX_2_REG 0x02 /* ADC_AGC indirect registers. */ #define APM_INDIRECT_ADC_AGC_0_REG 0x00 #define APM_INDIRECT_ADC_AGC_1_REG 0x01 #define APM_INDIRECT_ADC_AGC_2_REG 0x02 #define APM_INDIRECT_ADC_AGC_3_REG 0x03 #define APM_INDIRECT_ADC_AGC_4_REG 0x04 /* APM_VAD_REG indirect registers. */ #define APM_INDIRECT_VAD_0_REG 0x00 #define APM_INDIRECT_VAD_1_REG 0x01 /* APM macros. */ #define APM_IS_IRQ_PENDING IS_BIT_SET(NPCX_APM_SR, NPCX_APM_SR_IRQ_PEND) #define APM_IS_VOICE_ACTIVITY_DETECTED \ IS_BIT_SET(NPCX_APM_IFR, NPCX_APM_IFR_VAD_DTC) #define APM_CLEAR_VAD_INTERRUPT SET_BIT(NPCX_APM_IFR, NPCX_APM_IFR_VAD_DTC) /* Indirect registers. */ enum apm_indirect_reg_offset { APM_MIX_REG = 0, APM_ADC_AGC_REG, APM_VAD_REG }; /* ADC wind noise filter modes. */ enum apm_adc_wind_noise_filter_mode { APM_ADC_WIND_NOISE_FILTER_INACTIVE = 0, APM_ADC_WIND_NOISE_FILTER_MODE_1_ACTIVE, APM_ADC_WIND_NOISE_FILTER_MODE_2_ACTIVE, APM_ADC_WIND_NOISE_FILTER_MODE_3_ACTIVE, }; /* ADC frequency. */ enum apm_adc_frequency { APM_ADC_FREQ_8_000_KHZ = 0x00, APM_ADC_FREQ_11_025_KHZ, APM_ADC_FREQ_12_000_KHZ, APM_ADC_FREQ_16_000_KHZ, APM_ADC_FREQ_22_050_KHZ, APM_ADC_FREQ_24_000_KHZ, APM_ADC_FREQ_32_000_KHZ, APM_ADC_FREQ_44_100_KHZ, APM_ADC_FREQ_48_000_KHZ, APM_ADC_FREQ_UNSUPPORTED = 0x0F }; /* DMIC source. */ enum apm_dmic_src { APM_CURRENT_DMIC_CHANNEL = 0x01, /* Current channel, left or rigth. */ APM_AVERAGE_DMIC_CHANNEL = 0x02 /* Average between left & right. */ }; /* ADC digital microphone rate. */ enum apm_dmic_rate { APM_DMIC_RATE_3_0 = 0, /* 3.0 -3.25 MHz (default). */ APM_DMIC_RATE_2_4, /* 2.4 -2.6 MHz. */ APM_DMIC_RATE_1_0 /* 1.0 -1.08 MHz. */ }; /* Digitla mixer output. */ enum apm_dig_mix { APM_OUT_MIX_NORMAL_INPUT = 0, /* Default. */ APM_OUT_MIX_CROSS_INPUT, APM_OUT_MIX_MIXED_INPUT, APM_OUT_MIX_NO_INPUT }; /* VAD Input Channel Selection */ enum apm_vad_in_channel_src { APM_IN_LEFT = 0, APM_IN_RIGHT, APM_IN_AVERAGE_LEFT_RIGHT, APM_IN_RESERVED }; /* ADC digital gain coupling. */ enum apm_adc_gain_coupling { APM_ADC_CHAN_GAINS_INDEPENDENT = 0, APM_ADC_RIGHT_CHAN_GAIN_TRACKS_LEFT }; /* ADC target output level. */ enum apm_adc_target_out_level { APM_ADC_MAX_TARGET_LEVEL = 0, APM_ADC_MAX_TARGET_LEVEL_1_5, APM_ADC_MAX_TARGET_LEVEL_3_0, APM_ADC_MAX_TARGET_LEVEL_4_5, APM_ADC_MAX_TARGET_LEVEL_6_0, APM_ADC_MAX_TARGET_LEVEL_7_5, APM_ADC_MAX_TARGET_LEVEL_9_0, APM_ADC_MAX_TARGET_LEVEL_10_5, APM_ADC_MAX_TARGET_LEVEL_12_0, APM_ADC_MAX_TARGET_LEVEL_13_5, APM_ADC_MAX_TARGET_LEVEL_15_0, APM_ADC_MAX_TARGET_LEVEL_16_5, APM_ADC_MAX_TARGET_LEVEL_18_0, APM_ADC_MAX_TARGET_LEVEL_19_5, /* Default. */ APM_ADC_MAX_TARGET_LEVEL_21_0, APM_ADC_MAX_TARGET_LEVEL_22_5 }; /* Noise gate threshold values. */ enum apm_noise_gate_threshold { APM_MIN_NOISE_GET_THRESHOLD = 0, APM_MIN_NOISE_GET_THRESHOLD_6, APM_MIN_NOISE_GET_THRESHOLD_12, APM_MIN_NOISE_GET_THRESHOLD_18, APM_MIN_NOISE_GET_THRESHOLD_24, APM_MIN_NOISE_GET_THRESHOLD_30, APM_MIN_NOISE_GET_THRESHOLD_36, APM_MIN_NOISE_GET_THRESHOLD_42 }; /* Hold time in msec before starting AGC adjustment to the TARGET value. */ enum apm_agc_adj_hold_time { APM_HOLD_TIME_0 = 0, APM_HOLD_TIME_2, APM_HOLD_TIME_4, APM_HOLD_TIME_8, APM_HOLD_TIME_16, APM_HOLD_TIME_32, APM_HOLD_TIME_64, APM_HOLD_TIME_128, /* Default. */ APM_HOLD_TIME_256, APM_HOLD_TIME_512, APM_HOLD_TIME_1024, APM_HOLD_TIME_2048, APM_HOLD_TIME_4096, APM_HOLD_TIME_8192, APM_HOLD_TIME_16384, APM_HOLD_TIME_32768 }; /* Attack time in msec - gain ramp down. */ enum apm_gain_ramp_time { APM_GAIN_RAMP_TIME_32 = 0, APM_GAIN_RAMP_TIME_64, APM_GAIN_RAMP_TIME_96, APM_GAIN_RAMP_TIME_128, APM_GAIN_RAMP_TIME_160, /* Default. */ APM_GAIN_RAMP_TIME_192, APM_GAIN_RAMP_TIME_224, APM_GAIN_RAMP_TIME_256, APM_GAIN_RAMP_TIME_288, APM_GAIN_RAMP_TIME_320, APM_GAIN_RAMP_TIME_352, APM_GAIN_RAMP_TIME_384, APM_GAIN_RAMP_TIME_416, APM_GAIN_RAMP_TIME_448, APM_GAIN_RAMP_TIME_480, APM_GAIN_RAMP_TIME_512 }; /* Minimum and Maximum gain values. */ enum apm_gain_values { APM_GAIN_VALUE_0_0 = 0, APM_GAIN_VALUE_1_5, APM_GAIN_VALUE_3_0, APM_GAIN_VALUE_4_5, APM_GAIN_VALUE_6_0, APM_GAIN_VALUE_7_5, APM_GAIN_VALUE_9_0, APM_GAIN_VALUE_10_5, APM_GAIN_VALUE_12_0, APM_GAIN_VALUE_13_5, APM_GAIN_VALUE_15_0, APM_GAIN_VALUE_16_5, APM_GAIN_VALUE_18_0, APM_GAIN_VALUE_19_5, APM_GAIN_VALUE_21_0, APM_GAIN_VALUE_22_5, APM_GAIN_VALUE_23_0_1ST, APM_GAIN_VALUE_23_0_2ND, APM_GAIN_VALUE_23_0_3RD, APM_GAIN_VALUE_24_5, APM_GAIN_VALUE_26_0, APM_GAIN_VALUE_27_5, APM_GAIN_VALUE_29_0, APM_GAIN_VALUE_30_5, APM_GAIN_VALUE_32_0, APM_GAIN_VALUE_33_5, APM_GAIN_VALUE_35_0, APM_GAIN_VALUE_36_5, APM_GAIN_VALUE_38_0, APM_GAIN_VALUE_39_5, APM_GAIN_VALUE_41_0, APM_GAIN_VALUE_42_5 }; /* ADC Audio Data Word Length */ enum apm_adc_data_length { APM_ADC_DATA_LEN_16_BITS = 0x00, APM_ADC_DATA_LEN_18_BITS, APM_ADC_DATA_LEN_20_BITS, APM_ADC_DATA_LEN_24_BITS }; struct apm_config { enum apm_dmic_rate vad_dmic_rate; enum apm_dmic_rate adc_dmic_rate; enum apm_adc_gain_coupling gain_coupling; uint8_t left_chan_gain; uint8_t right_chan_gain; }; struct apm_auto_gain_config { int stereo_enable; enum apm_adc_target_out_level agc_target; int nois_gate_en; enum apm_noise_gate_threshold nois_gate_thold; enum apm_agc_adj_hold_time hold_time; enum apm_gain_ramp_time attack_time; enum apm_gain_ramp_time decay_time; enum apm_gain_values gain_max; enum apm_gain_values gain_min; }; /** * Sets the ADC DMIC rate. * * @param rate - ADC digital microphone rate * @return None */ void apm_set_adc_dmic_config(enum apm_dmic_rate rate); /** * Sets VAD DMIC rate. * * @param rate - VAD DMIC rate * * @return None */ void apm_set_vad_dmic_rate(enum apm_dmic_rate rate); /*****************************************************************************/ /* IC specific low-level driver */ enum wov_modes; /** * Initiate APM module local parameters.. * * @param enable - enabled flag, 1 means enable * @return None */ void apm_init(void); /** * Enables/Disables APM module. * * @param enable - enabled flag, true means enable * @return None */ void apm_enable(int enable); /** * Enables/Disables voice activity detected interrupt. * * @param enable - enabled flag, true means enable * @return APM interrupt mode. */ void apm_enable_vad_interrupt(int enable); /** * Enables/Disables ADC. * * @param enable - enabled flag, true means enable * @return None */ void apm_adc_enable(int enable); /** * sets the ADC frequency. * * @param adc_freq - ADC frequency. * @return None */ void apm_adc_set_freq(enum apm_adc_frequency adc_freq); /** * Configures the ADC. * * @param hpf_enable - High pass filter enabled flag, true means enable * @param filter_mode - ADC wind noise filter mode. * @param adc_freq - ADC frequency. * @return None */ void apm_adc_config(int hpf_enable, enum apm_adc_wind_noise_filter_mode filter_mode, enum apm_adc_frequency adc_freq); /** * Enables/Disables Digital Microphone. * * @param enable - enabled flag, true means enable * @return None */ void apm_dmic_enable(int enable); /** * Configures Digital Microphone. * * @param mix_left - Mixer left channel output selection on ADC path. * @param mix_right - Mixer right channel output selection on ADC path. * @return None */ void apm_digital_mixer_config(enum apm_dig_mix mix_left, enum apm_dig_mix mix_right); /** * Enables/Disables the VAD functionality. * * @param enable - enabled flag, true means enable * @return None */ void apm_vad_enable(int enable); /** * Enables/Disables VAD ADC wakeup * * @param enable - true enable, false disable. * * @return None */ void apm_vad_adc_wakeup_enable(int enable); /** * Sets VAD Input chanel. * * @param chan_src - Processed digital microphone channel * selection. * @return None */ void apm_set_vad_input_channel(enum apm_vad_in_channel_src chan_src); /** * Sets VAD sensitivity. * * @param sensitivity_db - VAD sensitivity in db. * @return None */ void apm_set_vad_sensitivity(uint8_t sensitivity_db); /** * Gets VAD sensitivity. * * @param None. * @return VAD sensitivity in db */ uint8_t apm_get_vad_sensitivity(void); /** * Restarts VAD functionality. * * @param None * @return None */ void apm_vad_restart(void); /** * Restarts VAD functionality. * * @param gain_coupling - ADC digital gain coupling (independent or * rigth tracks left). * @param left_chan_gain - Left channel ADC digital gain programming value. * @param right_chan_gain - Right channel ADC digital gain programming value. * @return EC_ERROR_INVAL or EC_SUCCESS */ enum ec_error_list apm_adc_gain_config(enum apm_adc_gain_coupling gain_coupling, uint8_t left_chan_gain, uint8_t right_chan_gain); /** * Enables/Disables the automatic gain. * * @param enable - enabled flag, true means enable * @return None */ void apm_auto_gain_cntrl_enable(int enable); /** * Enables/Disables the automatic gain. * * @param gain_cfg - struct of apm auto gain config * @return EC_ERROR_INVAL or EC_SUCCESS */ enum ec_error_list apm_adc_auto_gain_config( struct apm_auto_gain_config *gain_cfg); /** * Sets APM mode (enables & disables APN sub modules accordingly * to the APM mode). * * @param apm_mode - APM mode, DEFAULT, DETECTION, RECORD or INDEPENDENT modes. * @return None */ void apm_set_mode(enum wov_modes wov_mode); /** * Clears VAD detected bit in IFR register. * * @param None * @return None. */ void apm_clear_vad_detected_bit(void); #endif /* __CROS_EC_APM_CHIP_H */