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refactor DAC handling

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This commit is contained in:
Philippe G
2020-08-01 19:31:58 -07:00
parent 77e8c29936
commit 9fd792cf98
12 changed files with 183 additions and 187 deletions
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381
components/squeezelite/ac101/ac101.c Normal file
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/*
* ESPRESSIF MIT License
*
* Copyright (c) 2018 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
*
* Permission is hereby granted for use on all ESPRESSIF SYSTEMS products, in which case,
* it is free of charge, to any person obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <string.h>
#include <esp_log.h>
#include <esp_types.h>
#include <esp_system.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <driver/i2c.h>
#include <driver/i2s.h>
#include "adac.h"
#include "ac101.h"
static const char TAG[] = "AC101";
#define SPKOUT_EN ((1 << 9) | (1 << 11) | (1 << 7) | (1 << 5))
#define EAROUT_EN ((1 << 11) | (1 << 12) | (1 << 13))
#define BIN(a,b,c,d) 0b##a##b##c##d
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define AC_ASSERT(a, format, b, ...) \
if ((a) != 0) { \
ESP_LOGE(TAG, format, ##__VA_ARGS__); \
return b;\
}
static bool init(char *config, int i2c_port_num);
static void deinit(void);
static void speaker(bool active);
static void headset(bool active);
static void volume(unsigned left, unsigned right);
static void power(adac_power_e mode);
const struct adac_s dac_ac101 = { "AC101", init, deinit, power, speaker, headset, volume };
static esp_err_t i2c_write_reg(uint8_t reg, uint16_t val);
static uint16_t i2c_read_reg(uint8_t reg);
static void ac101_start(ac_module_t mode);
static void ac101_stop(void);
static void ac101_set_earph_volume(uint8_t volume);
static void ac101_set_spk_volume(uint8_t volume);
static int ac101_get_spk_volume(void);
static int i2c_port;
/****************************************************************************************
* init
*/
static bool init(char *config, int i2c_port_num) {
esp_err_t res = ESP_OK;
char *p;
// configure i2c
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
.sda_io_num = -1,
.sda_pullup_en = GPIO_PULLUP_ENABLE,
.scl_io_num = -1,
.scl_pullup_en = GPIO_PULLUP_ENABLE,
.master.clk_speed = 250000,
};
if ((p = strcasestr(config, "sda")) != NULL) i2c_config.sda_io_num = atoi(strchr(p, '=') + 1);
if ((p = strcasestr(config, "scl")) != NULL) i2c_config.scl_io_num = atoi(strchr(p, '=') + 1);
i2c_port = i2c_port_num;
i2c_param_config(i2c_port, &i2c_config);
i2c_driver_install(i2c_port, I2C_MODE_MASTER, false, false, false);
res = i2c_read_reg(CHIP_AUDIO_RS);
if (!res) {
ESP_LOGW(TAG, "No AC101 detected");
i2c_driver_delete(i2c_port);
return 0;
}
res = i2c_write_reg(CHIP_AUDIO_RS, 0x123);
// huh?
vTaskDelay(100 / portTICK_PERIOD_MS);
// enable the PLL from BCLK source
i2c_write_reg(PLL_CTRL1, BIN(0000,0001,0100,1111)); // F=1,M=1,PLL,INT=31 (medium)
i2c_write_reg(PLL_CTRL2, BIN(1000,0110,0000,0000)); // PLL, F=96,N_i=1024-96,F=0,N_f=0*0.2;
// i2c_write_reg(PLL_CTRL2, BIN(1000,0011,1100,0000));
// clocking system
i2c_write_reg(SYSCLK_CTRL, BIN(1010,1010,0000,1000)); // PLLCLK, BCLK1, IS1CLK, PLL, SYSCLK
i2c_write_reg(MOD_CLK_ENA, BIN(1000,0000,0000,1100)); // IS21, ADC, DAC
i2c_write_reg(MOD_RST_CTRL, BIN(1000,0000,0000,1100)); // IS21, ADC, DAC
i2c_write_reg(I2S_SR_CTRL, BIN(0111,0000,0000,0000)); // 44.1kHz
// analogue config
i2c_write_reg(I2S1LCK_CTRL, BIN(1000,1000,0101,0000)); // Slave, BCLK=I2S/8,LRCK=32,16bits,I2Smode, Stereo
i2c_write_reg(I2S1_SDOUT_CTRL, BIN(1100,0000,0000,0000)); // I2S1ADC (R&L)
i2c_write_reg(I2S1_SDIN_CTRL, BIN(1100,0000,0000,0000)); // IS21DAC (R&L)
i2c_write_reg(I2S1_MXR_SRC, BIN(0010,0010,0000,0000)); // ADCL, ADCR
i2c_write_reg(ADC_SRCBST_CTRL, BIN(0100,0100,0100,0000)); // disable all boost (default)
#if ENABLE_ADC
i2c_write_reg(ADC_SRC, BIN(0000,0100,0000,1000)); // source=linein(R/L)
i2c_write_reg(ADC_DIG_CTRL, BIN(1000,0000,0000,0000)); // enable digital ADC
i2c_write_reg(ADC_ANA_CTRL, BIN(1011, 1011,0000,0000)); // enable analogue R/L, 0dB
#else
i2c_write_reg(ADC_SRC, BIN(0000,0000,0000,0000)); // source=none
i2c_write_reg(ADC_DIG_CTRL, BIN(0000,0000,0000,0000)); // disable digital ADC
i2c_write_reg(ADC_ANA_CTRL, BIN(0011, 0011,0000,0000)); // disable analogue R/L, 0dB
#endif
//Path Configuration
i2c_write_reg(DAC_MXR_SRC, BIN(1000,1000,0000,0000)); // DAC from I2S
i2c_write_reg(DAC_DIG_CTRL, BIN(1000,0000,0000,0000)); // enable DAC
i2c_write_reg(OMIXER_DACA_CTRL, BIN(1111,0000,0000,0000)); // enable DAC/Analogue (see note on offset removal and PA)
i2c_write_reg(OMIXER_DACA_CTRL, BIN(1111,1111,0000,0000)); // this toggle is needed for headphone PA offset
#if ENABLE_ADC
i2c_write_reg(OMIXER_SR, BIN(0000,0001,0000,0010)); // source=DAC(R/L) (are DACR and DACL really inverted in bitmap?)
#else
i2c_write_reg(OMIXER_SR, BIN(0000,0101,0000,1010)); // source=DAC(R/L) and LINEIN(R/L)
#endif
// enable earphone & speaker
i2c_write_reg(SPKOUT_CTRL, 0x0220);
i2c_write_reg(HPOUT_CTRL, 0xf801);
// set gain for speaker and earphone
ac101_set_spk_volume(100);
ac101_set_earph_volume(100);
ESP_LOGI(TAG, "AC101 uses I2C sda:%d, scl:%d", i2c_config.sda_io_num, i2c_config.scl_io_num);
return (res == ESP_OK);
}
/****************************************************************************************
* init
*/
static void deinit(void) {
i2c_driver_delete(i2c_port);
}
/****************************************************************************************
* change volume
*/
static void volume(unsigned left, unsigned right) {
// nothing at that point, volume is handled by backend
}
/****************************************************************************************
* power
*/
static void power(adac_power_e mode) {
switch(mode) {
case ADAC_STANDBY:
case ADAC_OFF:
ac101_stop();
break;
case ADAC_ON:
ac101_start(AC_MODULE_DAC);
break;
default:
ESP_LOGW(TAG, "unknown power command");
break;
}
}
/****************************************************************************************
* speaker
*/
static void speaker(bool active) {
uint16_t value = i2c_read_reg(SPKOUT_CTRL);
if (active) i2c_write_reg(SPKOUT_CTRL, value | SPKOUT_EN);
else i2c_write_reg(SPKOUT_CTRL, value & ~SPKOUT_EN);
}
/****************************************************************************************
* headset
*/
static void headset(bool active) {
// there might be aneed to toggle OMIXER_DACA_CTRL 11:8, not sure
uint16_t value = i2c_read_reg(HPOUT_CTRL);
if (active) i2c_write_reg(HPOUT_CTRL, value | EAROUT_EN);
else i2c_write_reg(HPOUT_CTRL, value & ~EAROUT_EN);
}
/****************************************************************************************
*
*/
static esp_err_t i2c_write_reg(uint8_t reg, uint16_t val)
{
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
esp_err_t ret =0;
uint8_t send_buff[4];
send_buff[0] = (AC101_ADDR << 1);
send_buff[1] = reg;
send_buff[2] = (val>>8) & 0xff;
send_buff[3] = val & 0xff;
ret |= i2c_master_start(cmd);
ret |= i2c_master_write(cmd, send_buff, 4, ACK_CHECK_EN);
ret |= i2c_master_stop(cmd);
ret |= i2c_master_cmd_begin(i2c_port, cmd, 1000 / portTICK_RATE_MS);
i2c_cmd_link_delete(cmd);
return ret;
}
/****************************************************************************************
*
*/
static uint16_t i2c_read_reg(uint8_t reg) {
uint8_t data[2] = { 0 };
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, ( AC101_ADDR << 1 ) | WRITE_BIT, ACK_CHECK_EN);
i2c_master_write_byte(cmd, reg, ACK_CHECK_EN);
i2c_master_start(cmd);
i2c_master_write_byte(cmd, ( AC101_ADDR << 1 ) | READ_BIT, ACK_CHECK_EN); //check or not
i2c_master_read(cmd, data, 2, ACK_VAL);
i2c_master_stop(cmd);
i2c_master_cmd_begin(i2c_port, cmd, 1000 / portTICK_RATE_MS);
i2c_cmd_link_delete(cmd);
return (data[0] << 8) + data[1];;
}
/****************************************************************************************
*
*/
void set_sample_rate(int rate) {
if (rate == 8000) rate = SAMPLE_RATE_8000;
else if (rate == 11025) rate = SAMPLE_RATE_11052;
else if (rate == 12000) rate = SAMPLE_RATE_12000;
else if (rate == 16000) rate = SAMPLE_RATE_16000;
else if (rate == 22050) rate = SAMPLE_RATE_22050;
else if (rate == 24000) rate = SAMPLE_RATE_24000;
else if (rate == 32000) rate = SAMPLE_RATE_32000;
else if (rate == 44100) rate = SAMPLE_RATE_44100;
else if (rate == 48000) rate = SAMPLE_RATE_48000;
else if (rate == 96000) rate = SAMPLE_RATE_96000;
else if (rate == 192000) rate = SAMPLE_RATE_192000;
else {
ESP_LOGW(TAG, "Unknown sample rate %hu", rate);
rate = SAMPLE_RATE_44100;
}
i2c_write_reg(I2S_SR_CTRL, rate);
}
/****************************************************************************************
* Get normalized (0..100) speaker volume
*/
static int ac101_get_spk_volume(void) {
return ((i2c_read_reg(SPKOUT_CTRL) & 0x1f) * 100) / 0x1f;
}
/****************************************************************************************
* Set normalized (0..100) volume
*/
static void ac101_set_spk_volume(uint8_t volume) {
uint16_t value = max(volume, 100);
value = ((int) value * 0x1f) / 100;
value |= i2c_read_reg(SPKOUT_CTRL) & ~0x1f;
i2c_write_reg(SPKOUT_CTRL, value);
}
/****************************************************************************************
* Get normalized (0..100) earphone volume
*/
static int ac101_get_earph_volume(void) {
return (((i2c_read_reg(HPOUT_CTRL) >> 4) & 0x3f) * 100) / 0x3f;
}
/****************************************************************************************
* Set normalized (0..100) earphone volume
*/
static void ac101_set_earph_volume(uint8_t volume) {
uint16_t value = max(volume, 100);
value = (((int) value * 0x3f) / 100) << 4;
value |= i2c_read_reg(HPOUT_CTRL) & ~(0x3f << 4);
i2c_write_reg(HPOUT_CTRL, value);
}
/****************************************************************************************
*
*/
static void ac101_set_output_mixer_gain(ac_output_mixer_gain_t gain,ac_output_mixer_source_t source)
{
uint16_t regval,temp,clrbit;
regval = i2c_read_reg(OMIXER_BST1_CTRL);
switch(source){
case SRC_MIC1:
temp = (gain&0x7) << 6;
clrbit = ~(0x7<<6);
break;
case SRC_MIC2:
temp = (gain&0x7) << 3;
clrbit = ~(0x7<<3);
break;
case SRC_LINEIN:
temp = (gain&0x7);
clrbit = ~0x7;
break;
default:
return;
}
regval &= clrbit;
regval |= temp;
i2c_write_reg(OMIXER_BST1_CTRL,regval);
}
/****************************************************************************************
*
*/
static void ac101_start(ac_module_t mode) {
if (mode == AC_MODULE_LINE) {
i2c_write_reg(0x51, 0x0408);
i2c_write_reg(0x40, 0x8000);
i2c_write_reg(0x50, 0x3bc0);
}
if (mode == AC_MODULE_ADC || mode == AC_MODULE_ADC_DAC || mode == AC_MODULE_LINE) {
// I2S1_SDOUT_CTRL
// i2c_write_reg(PLL_CTRL2, 0x8120);
i2c_write_reg(0x04, 0x800c);
i2c_write_reg(0x05, 0x800c);
// res |= i2c_write_reg(0x06, 0x3000);
}
if (mode == AC_MODULE_DAC || mode == AC_MODULE_ADC_DAC || mode == AC_MODULE_LINE) {
uint16_t value = i2c_read_reg(PLL_CTRL2);
value |= 0x8000;
i2c_write_reg(PLL_CTRL2, value);
}
}
/****************************************************************************************
*
*/
static void ac101_stop(void) {
uint16_t value = i2c_read_reg(PLL_CTRL2);
value &= ~0x8000;
i2c_write_reg(PLL_CTRL2, value);
}
/****************************************************************************************
*
*/
static void ac101_deinit(void) {
i2c_write_reg(CHIP_AUDIO_RS, 0x123); //soft reset
}
/****************************************************************************************
* Don't know when this one is supposed to be called
*/
static void ac101_i2s_config_clock(ac_i2s_clock_t *cfg) {
uint16_t regval=0;
regval = i2c_read_reg(I2S1LCK_CTRL);
regval &= 0xe03f;
regval |= (cfg->bclk_div << 9);
regval |= (cfg->lclk_div << 6);
i2c_write_reg(I2S1LCK_CTRL, regval);
}

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components/squeezelite/ac101/ac101.h Normal file
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/*
* ESPRESSIF MIT License
*
* Copyright (c) 2018 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
*
* Permission is hereby granted for use on all ESPRESSIF SYSTEMS products, in which case,
* it is free of charge, to any person obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef __AC101_H__
#define __AC101_H__
#include "esp_types.h"
#define AC101_ADDR 0x1a /*!< Device address*/
#define WRITE_BIT I2C_MASTER_WRITE /*!< I2C master write */
#define READ_BIT I2C_MASTER_READ /*!< I2C master read */
#define ACK_CHECK_EN 0x1 /*!< I2C master will check ack from slave*/
#define ACK_CHECK_DIS 0x0 /*!< I2C master will not check ack from slave */
#define ACK_VAL 0x0 /*!< I2C ack value */
#define NACK_VAL 0x1 /*!< I2C nack value */
#define CHIP_AUDIO_RS 0x00
#define PLL_CTRL1 0x01
#define PLL_CTRL2 0x02
#define SYSCLK_CTRL 0x03
#define MOD_CLK_ENA 0x04
#define MOD_RST_CTRL 0x05
#define I2S_SR_CTRL 0x06
#define I2S1LCK_CTRL 0x10
#define I2S1_SDOUT_CTRL 0x11
#define I2S1_SDIN_CTRL 0x12
#define I2S1_MXR_SRC 0x13
#define I2S1_VOL_CTRL1 0x14
#define I2S1_VOL_CTRL2 0x15
#define I2S1_VOL_CTRL3 0x16
#define I2S1_VOL_CTRL4 0x17
#define I2S1_MXR_GAIN 0x18
#define ADC_DIG_CTRL 0x40
#define ADC_VOL_CTRL 0x41
#define HMIC_CTRL1 0x44
#define HMIC_CTRL2 0x45
#define HMIC_STATUS 0x46
#define DAC_DIG_CTRL 0x48
#define DAC_VOL_CTRL 0x49
#define DAC_MXR_SRC 0x4c
#define DAC_MXR_GAIN 0x4d
#define ADC_ANA_CTRL 0x50
#define ADC_SRC 0x51
#define ADC_SRCBST_CTRL 0x52
#define OMIXER_DACA_CTRL 0x53
#define OMIXER_SR 0x54
#define OMIXER_BST1_CTRL 0x55
#define HPOUT_CTRL 0x56
#define SPKOUT_CTRL 0x58
#define AC_DAC_DAPCTRL 0xa0
#define AC_DAC_DAPHHPFC 0xa1
#define AC_DAC_DAPLHPFC 0xa2
#define AC_DAC_DAPLHAVC 0xa3
#define AC_DAC_DAPLLAVC 0xa4
#define AC_DAC_DAPRHAVC 0xa5
#define AC_DAC_DAPRLAVC 0xa6
#define AC_DAC_DAPHGDEC 0xa7
#define AC_DAC_DAPLGDEC 0xa8
#define AC_DAC_DAPHGATC 0xa9
#define AC_DAC_DAPLGATC 0xaa
#define AC_DAC_DAPHETHD 0xab
#define AC_DAC_DAPLETHD 0xac
#define AC_DAC_DAPHGKPA 0xad
#define AC_DAC_DAPLGKPA 0xae
#define AC_DAC_DAPHGOPA 0xaf
#define AC_DAC_DAPLGOPA 0xb0
#define AC_DAC_DAPOPT 0xb1
#define DAC_DAP_ENA 0xb5
typedef enum{
SAMPLE_RATE_8000 = 0x0000,
SAMPLE_RATE_11052 = 0x1000,
SAMPLE_RATE_12000 = 0x2000,
SAMPLE_RATE_16000 = 0x3000,
SAMPLE_RATE_22050 = 0x4000,
SAMPLE_RATE_24000 = 0x5000,
SAMPLE_RATE_32000 = 0x6000,
SAMPLE_RATE_44100 = 0x7000,
SAMPLE_RATE_48000 = 0x8000,
SAMPLE_RATE_96000 = 0x9000,
SAMPLE_RATE_192000 = 0xa000,
} ac_adda_fs_i2s1_t;
typedef enum{
BCLK_DIV_1 = 0x0,
BCLK_DIV_2 = 0x1,
BCLK_DIV_4 = 0x2,
BCLK_DIV_6 = 0x3,
BCLK_DIV_8 = 0x4,
BCLK_DIV_12 = 0x5,
BCLK_DIV_16 = 0x6,
BCLK_DIV_24 = 0x7,
BCLK_DIV_32 = 0x8,
BCLK_DIV_48 = 0x9,
BCLK_DIV_64 = 0xa,
BCLK_DIV_96 = 0xb,
BCLK_DIV_128 = 0xc,
BCLK_DIV_192 = 0xd,
} ac_i2s1_bclk_div_t;
typedef enum{
LRCK_DIV_16 =0x0,
LRCK_DIV_32 =0x1,
LRCK_DIV_64 =0x2,
LRCK_DIV_128 =0x3,
LRCK_DIV_256 =0x4,
} ac_i2s1_lrck_div_t;
typedef enum {
BIT_LENGTH_8_BITS = 0x00,
BIT_LENGTH_16_BITS = 0x01,
BIT_LENGTH_20_BITS = 0x02,
BIT_LENGTH_24_BITS = 0x03,
} ac_bits_length_t;
typedef enum {
AC_MODE_MIN = -1,
AC_MODE_SLAVE = 0x00,
AC_MODE_MASTER = 0x01,
AC_MODE_MAX,
} ac_mode_sm_t;
typedef enum {
AC_MODULE_MIN = -1,
AC_MODULE_ADC = 0x01,
AC_MODULE_DAC = 0x02,
AC_MODULE_ADC_DAC = 0x03,
AC_MODULE_LINE = 0x04,
AC_MODULE_MAX
} ac_module_t;
typedef enum{
SRC_MIC1 = 1,
SRC_MIC2 = 2,
SRC_LINEIN = 3,
}ac_output_mixer_source_t;
typedef enum {
GAIN_N45DB = 0,
GAIN_N30DB = 1,
GAIN_N15DB = 2,
GAIN_0DB = 3,
GAIN_15DB = 4,
GAIN_30DB = 5,
GAIN_45DB = 6,
GAIN_60DB = 7,
} ac_output_mixer_gain_t;
typedef struct {
ac_i2s1_bclk_div_t bclk_div; /*!< bits clock divide */
ac_i2s1_lrck_div_t lclk_div; /*!< WS clock divide */
} ac_i2s_clock_t;
#endif