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Merge branch 'bugfix/fix_rtcio_adc_driver_for_esp32' into 'release/v4.1'

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rtc(adc/rtcio): fix adc rtcio driver for esp32

See merge request espressif/esp-idf!8347
This commit is contained in:
Michael (XIAO Xufeng) 2020-09-14 10:57:26 +08:00
commit edb19cd748
3 changed files with 15 additions and 12 deletions
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4
components/driver/adc.c
View File

@ -512,8 +512,8 @@ static int hall_sensor_get_value(void) //hall sensor without LNA
int hall_sensor_read(void)
{
adc_gpio_init(ADC_NUM_1, ADC1_CHANNEL_0);
adc_gpio_init(ADC_NUM_1, ADC1_CHANNEL_3);
adc_gpio_init(ADC_UNIT_1, ADC1_CHANNEL_0);
adc_gpio_init(ADC_UNIT_1, ADC1_CHANNEL_3);
adc1_config_channel_atten(ADC1_CHANNEL_0, ADC_ATTEN_DB_0);
adc1_config_channel_atten(ADC1_CHANNEL_3, ADC_ATTEN_DB_0);
return hall_sensor_get_value();

21
components/soc/esp32/include/hal/adc_ll.h
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@ -199,18 +199,21 @@ static inline void adc_ll_set_pattern_table_len(adc_ll_num_t adc_n, uint32_t pat
*/
static inline void adc_ll_set_pattern_table(adc_ll_num_t adc_n, uint32_t pattern_index, adc_ll_pattern_table_t pattern)
{
/* There are 4 registers store 16 conversion rules. Each register `saradc_sar1_patt_tab` save 4 conversion rules.
Bit map [31:24] for `n + 1` item, [23:16] for `n + 2` item, [15:8] for `n + 3` item, [7:0] for `n + 4` item.*/
uint32_t tab;
uint8_t *arg;
uint8_t index = pattern_index / 4;
uint8_t offset = (pattern_index % 4) * 8;
if (adc_n == ADC_NUM_1) {
tab = SYSCON.saradc_sar1_patt_tab[pattern_index / 4];
arg = (uint8_t *)&tab;
arg[pattern_index % 4] = pattern.val;
SYSCON.saradc_sar1_patt_tab[pattern_index / 4] = tab;
tab = SYSCON.saradc_sar1_patt_tab[index]; // Read old register value
tab &= (~(0xFF000000 >> offset)); // clear old data
tab |= ((uint32_t)pattern.val << 24) >> offset; // Fill in the new data
SYSCON.saradc_sar1_patt_tab[index] = tab; // Write back
} else { // adc_n == ADC_NUM_2
tab = SYSCON.saradc_sar2_patt_tab[pattern_index / 4];
arg = (uint8_t *)&tab;
arg[pattern_index % 4] = pattern.val;
SYSCON.saradc_sar2_patt_tab[pattern_index / 4] = tab;
tab = SYSCON.saradc_sar2_patt_tab[index]; // Read old register value
tab &= (~(0xFF000000 >> offset)); // clear old data
tab |= ((uint32_t)pattern.val << 24) >> offset; // Fill in the new data
SYSCON.saradc_sar2_patt_tab[index] = tab; // Write back
}
}

2
components/soc/esp32/include/soc/adc_caps.h
View File

@ -7,7 +7,7 @@
#define SOC_ADC_MAX_CHANNEL_NUM (10)
#define SOC_ADC1_DATA_INVERT_DEFAULT (1)
#define SOC_ADC2_DATA_INVERT_DEFAULT (0)
#define SOC_ADC2_DATA_INVERT_DEFAULT (1)
#define SOC_ADC_FSM_RSTB_WAIT_DEFAULT (8)
#define SOC_ADC_FSM_START_WAIT_DEFAULT (5)