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sleep: restore analog calibration registers after waking up from light sleep

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Closes https://github.com/espressif/esp-idf/issues/8287
Closes https://github.com/espressif/esp-idf/issues/7921
This commit is contained in:
Armando 2022-01-25 14:23:53 +08:00
parent d7512d8b38
commit 494b996ecc
13 changed files with 156 additions and 51 deletions
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2
components/esp_hw_support/port/esp32/CMakeLists.txt
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@ -1,5 +1,5 @@
target_include_directories(${COMPONENT_LIB} PUBLIC .)
target_include_directories(${COMPONENT_LIB} PRIVATE private_include)
target_include_directories(${COMPONENT_LIB} PUBLIC private_include)
set(srcs
"rtc_clk.c"

7
components/esp_hw_support/port/esp32c2/private_include/regi2c_saradc.h
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@ -77,3 +77,10 @@
#define I2C_SARADC_TSENS_DAC 0x6
#define I2C_SARADC_TSENS_DAC_MSB 3
#define I2C_SARADC_TSENS_DAC_LSB 0
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#define REGI2C_ANA_CALI_PD_WORKAROUND 1
#define REGI2C_ANA_CALI_BYTE_NUM 8

10
components/esp_hw_support/port/esp32c2/regi2c_ctrl.h
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@ -83,6 +83,16 @@ void regi2c_ctrl_write_reg_mask(uint8_t block, uint8_t host_id, uint8_t reg_add,
#define REGI2C_READ(block, reg_add) \
regi2c_ctrl_read_reg(block, block##_HOSTID, reg_add)
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#if REGI2C_ANA_CALI_PD_WORKAROUND
void regi2c_analog_cali_reg_read(void);
void regi2c_analog_cali_reg_write(void);
#endif //#if ADC_CALI_PD_WORKAROUND
#ifdef __cplusplus
}
#endif

9
components/esp_hw_support/port/esp32c3/private_include/regi2c_saradc.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -77,3 +77,10 @@
#define I2C_SARADC_TSENS_DAC 0x6
#define I2C_SARADC_TSENS_DAC_MSB 3
#define I2C_SARADC_TSENS_DAC_LSB 0
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#define REGI2C_ANA_CALI_PD_WORKAROUND 1
#define REGI2C_ANA_CALI_BYTE_NUM 8

10
components/esp_hw_support/port/esp32c3/regi2c_ctrl.h
View File

@ -82,6 +82,16 @@ void regi2c_ctrl_write_reg_mask(uint8_t block, uint8_t host_id, uint8_t reg_add,
#define REGI2C_READ(block, reg_add) \
regi2c_ctrl_read_reg(block, block##_HOSTID, reg_add)
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#if REGI2C_ANA_CALI_PD_WORKAROUND
void regi2c_analog_cali_reg_read(void);
void regi2c_analog_cali_reg_write(void);
#endif //#if ADC_CALI_PD_WORKAROUND
#ifdef __cplusplus
}
#endif

9
components/esp_hw_support/port/esp32s2/private_include/regi2c_saradc.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -73,3 +73,10 @@
#define I2C_SARADC_TSENS_DAC 0x6
#define I2C_SARADC_TSENS_DAC_MSB 3
#define I2C_SARADC_TSENS_DAC_LSB 0
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#define REGI2C_ANA_CALI_PD_WORKAROUND 1
#define REGI2C_ANA_CALI_BYTE_NUM 8

10
components/esp_hw_support/port/esp32s2/regi2c_ctrl.h
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@ -77,6 +77,16 @@ void regi2c_ctrl_write_reg_mask(uint8_t block, uint8_t host_id, uint8_t reg_add,
#define REGI2C_READ(block, reg_add) \
regi2c_ctrl_read_reg(block, block##_HOSTID, reg_add)
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#if REGI2C_ANA_CALI_PD_WORKAROUND
void regi2c_analog_cali_reg_read(void);
void regi2c_analog_cali_reg_write(void);
#endif //#if ADC_CALI_PD_WORKAROUND
#ifdef __cplusplus
}
#endif

86
components/esp_hw_support/port/esp32s2/rtc_init.c
View File

@ -235,50 +235,50 @@ static void set_ocode_by_efuse(int calib_version)
*/
static void calibrate_ocode(void)
{
// /*
// Bandgap output voltage is not precise when calibrate o-code by hardware sometimes, so need software o-code calibration (must turn off PLL).
// Method:
// 1. read current cpu config, save in old_config;
// 2. switch cpu to xtal because PLL will be closed when o-code calibration;
// 3. begin o-code calibration;
// 4. wait o-code calibration done flag(odone_flag & bg_odone_flag) or timeout;
// 5. set cpu to old-config.
// */
// rtc_slow_freq_t slow_clk_freq = rtc_clk_slow_freq_get();
// rtc_slow_freq_t rtc_slow_freq_x32k = RTC_SLOW_FREQ_32K_XTAL;
// rtc_slow_freq_t rtc_slow_freq_8MD256 = RTC_SLOW_FREQ_8MD256;
// rtc_cal_sel_t cal_clk = RTC_CAL_RTC_MUX;
// if (slow_clk_freq == (rtc_slow_freq_x32k)) {
// cal_clk = RTC_CAL_32K_XTAL;
// } else if (slow_clk_freq == rtc_slow_freq_8MD256) {
// cal_clk = RTC_CAL_8MD256;
// }
/*
Bandgap output voltage is not precise when calibrate o-code by hardware sometimes, so need software o-code calibration (must turn off PLL).
Method:
1. read current cpu config, save in old_config;
2. switch cpu to xtal because PLL will be closed when o-code calibration;
3. begin o-code calibration;
4. wait o-code calibration done flag(odone_flag & bg_odone_flag) or timeout;
5. set cpu to old-config.
*/
rtc_slow_freq_t slow_clk_freq = rtc_clk_slow_freq_get();
rtc_slow_freq_t rtc_slow_freq_x32k = RTC_SLOW_FREQ_32K_XTAL;
rtc_slow_freq_t rtc_slow_freq_8MD256 = RTC_SLOW_FREQ_8MD256;
rtc_cal_sel_t cal_clk = RTC_CAL_RTC_MUX;
if (slow_clk_freq == (rtc_slow_freq_x32k)) {
cal_clk = RTC_CAL_32K_XTAL;
} else if (slow_clk_freq == rtc_slow_freq_8MD256) {
cal_clk = RTC_CAL_8MD256;
}
// uint64_t max_delay_time_us = 10000;
// uint32_t slow_clk_period = rtc_clk_cal(cal_clk, 100);
// uint64_t max_delay_cycle = rtc_time_us_to_slowclk(max_delay_time_us, slow_clk_period);
// uint64_t cycle0 = rtc_time_get();
// uint64_t timeout_cycle = cycle0 + max_delay_cycle;
// uint64_t cycle1 = 0;
uint64_t max_delay_time_us = 10000;
uint32_t slow_clk_period = rtc_clk_cal(cal_clk, 100);
uint64_t max_delay_cycle = rtc_time_us_to_slowclk(max_delay_time_us, slow_clk_period);
uint64_t cycle0 = rtc_time_get();
uint64_t timeout_cycle = cycle0 + max_delay_cycle;
uint64_t cycle1 = 0;
// rtc_cpu_freq_config_t old_config;
// rtc_clk_cpu_freq_get_config(&old_config);
// rtc_clk_cpu_freq_set_xtal();
rtc_cpu_freq_config_t old_config;
rtc_clk_cpu_freq_get_config(&old_config);
rtc_clk_cpu_freq_set_xtal();
// REGI2C_WRITE_MASK(I2C_ULP, I2C_ULP_IR_RESETB, 0);
// REGI2C_WRITE_MASK(I2C_ULP, I2C_ULP_IR_RESETB, 1);
// bool odone_flag = 0;
// bool bg_odone_flag = 0;
// while(1) {
// odone_flag = REGI2C_READ_MASK(I2C_ULP, I2C_ULP_O_DONE_FLAG);
// bg_odone_flag = REGI2C_READ_MASK(I2C_ULP, I2C_ULP_BG_O_DONE_FLAG);
// cycle1 = rtc_time_get();
// if (odone_flag && bg_odone_flag)
// break;
// if (cycle1 >= timeout_cycle) {
// SOC_LOGW(TAG, "o_code calibration fail");
// break;
// }
// }
// rtc_clk_cpu_freq_set_config(&old_config);
REGI2C_WRITE_MASK(I2C_ULP, I2C_ULP_IR_RESETB, 0);
REGI2C_WRITE_MASK(I2C_ULP, I2C_ULP_IR_RESETB, 1);
bool odone_flag = 0;
bool bg_odone_flag = 0;
while(1) {
odone_flag = REGI2C_READ_MASK(I2C_ULP, I2C_ULP_O_DONE_FLAG);
bg_odone_flag = REGI2C_READ_MASK(I2C_ULP, I2C_ULP_BG_O_DONE_FLAG);
cycle1 = rtc_time_get();
if (odone_flag && bg_odone_flag)
break;
if (cycle1 >= timeout_cycle) {
SOC_LOGW(TAG, "o_code calibration fail");
break;
}
}
rtc_clk_cpu_freq_set_config(&old_config);
}

9
components/esp_hw_support/port/esp32s3/private_include/regi2c_saradc.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -73,3 +73,10 @@
#define I2C_SARADC_TSENS_DAC 0x6
#define I2C_SARADC_TSENS_DAC_MSB 3
#define I2C_SARADC_TSENS_DAC_LSB 0
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#define REGI2C_ANA_CALI_PD_WORKAROUND 1
#define REGI2C_ANA_CALI_BYTE_NUM 8

11
components/esp_hw_support/port/esp32s3/regi2c_ctrl.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -81,6 +81,15 @@ void regi2c_ctrl_write_reg_mask(uint8_t block, uint8_t host_id, uint8_t reg_add,
regi2c_ctrl_read_reg(block, block##_HOSTID, reg_add)
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#if REGI2C_ANA_CALI_PD_WORKAROUND
void regi2c_analog_cali_reg_read(void);
void regi2c_analog_cali_reg_write(void);
#endif //#if ADC_CALI_PD_WORKAROUND
#ifdef __cplusplus
}
#endif

27
components/esp_hw_support/regi2c_ctrl.c
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@ -1,10 +1,11 @@
/*
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "regi2c_ctrl.h"
#include "esp_attr.h"
#include <stdint.h>
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
@ -40,3 +41,27 @@ void IRAM_ATTR regi2c_ctrl_write_reg_mask(uint8_t block, uint8_t host_id, uint8_
i2c_write_reg_mask_raw(block, host_id, reg_add, msb, lsb, data);
portEXIT_CRITICAL_ISR(&mux);
}
/**
* Restore regi2c analog calibration related configuration registers.
* This is a workaround, and is fixed on later chips
*/
#if REGI2C_ANA_CALI_PD_WORKAROUND
static DRAM_ATTR uint8_t reg_val[REGI2C_ANA_CALI_BYTE_NUM];
void IRAM_ATTR regi2c_analog_cali_reg_read(void)
{
for (int i = 0; i < REGI2C_ANA_CALI_PD_WORKAROUND; i++) {
reg_val[i] = regi2c_ctrl_read_reg(I2C_SAR_ADC, I2C_SAR_ADC_HOSTID, i);
}
}
void IRAM_ATTR regi2c_analog_cali_reg_write(void)
{
for (int i = 0; i < REGI2C_ANA_CALI_PD_WORKAROUND; i++) {
regi2c_ctrl_write_reg(I2C_SAR_ADC, I2C_SAR_ADC_HOSTID, i, reg_val[i]);
}
}
#endif //#if ADC_CALI_PD_WORKAROUND

13
components/esp_hw_support/sleep_modes.c
View File

@ -27,6 +27,7 @@
#include "soc/rtc.h"
#include "soc/soc_caps.h"
#include "regi2c_ctrl.h" //For `REGI2C_ANA_CALI_PD_WORKAROUND`, temp
#include "hal/wdt_hal.h"
#include "hal/rtc_hal.h"
@ -319,6 +320,9 @@ static void IRAM_ATTR resume_uarts(void)
}
}
/**
* These save-restore workaround should be moved to lower layer
*/
inline static void IRAM_ATTR misc_modules_sleep_prepare(void)
{
#if CONFIG_MAC_BB_PD
@ -330,8 +334,14 @@ inline static void IRAM_ATTR misc_modules_sleep_prepare(void)
#if SOC_PM_SUPPORT_CPU_PD || SOC_PM_SUPPORT_TAGMEM_PD
sleep_enable_memory_retention();
#endif
#if REGI2C_ANA_CALI_PD_WORKAROUND
regi2c_analog_cali_reg_read();
#endif
}
/**
* These save-restore workaround should be moved to lower layer
*/
inline static void IRAM_ATTR misc_modules_wake_prepare(void)
{
#if SOC_PM_SUPPORT_CPU_PD || SOC_PM_SUPPORT_TAGMEM_PD
@ -343,6 +353,9 @@ inline static void IRAM_ATTR misc_modules_wake_prepare(void)
#if CONFIG_MAC_BB_PD
mac_bb_power_up_cb_execute();
#endif
#if REGI2C_ANA_CALI_PD_WORKAROUND
regi2c_analog_cali_reg_write();
#endif
}
inline static uint32_t IRAM_ATTR call_rtc_sleep_start(uint32_t reject_triggers, uint32_t lslp_mem_inf_fpu);

4
components/hal/adc_hal.c
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -566,8 +566,8 @@ static uint32_t read_cal_channel(adc_ll_num_t adc_n, int channel)
return (uint32_t)adc_ll_rtc_get_convert_value(adc_n);
}
#elif SOC_ADC_DIG_CTRL_SUPPORTED && !SOC_ADC_RTC_CTRL_SUPPORTED
//For those RTC controller not supported chips, they use digital controller to do the single read. e.g.: esp32c3
#elif SOC_ADC_DIG_CTRL_SUPPORTED && !SOC_ADC_RTC_CTRL_SUPPORTED
static void cal_setup(adc_ll_num_t adc_n, adc_channel_t channel, adc_atten_t atten, bool internal_gnd)
{
adc_ll_onetime_sample_enable(ADC_NUM_1, false);