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add Comment for touchpad

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This commit is contained in:
fuzhibo
2019-06-20 16:13:47 +08:00
parent fbb0687b97
commit 572084821b
43 changed files with 2780 additions and 1952 deletions
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43
components/esp32s2beta/sleep_modes.c
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@@ -406,9 +406,10 @@ touch_pad_t esp_sleep_get_touchpad_wakeup_status()
if (esp_sleep_get_wakeup_cause() != ESP_SLEEP_WAKEUP_TOUCHPAD) {
return TOUCH_PAD_MAX;
}
uint32_t touch_mask = REG_GET_FIELD(RTC_CNTL_TOUCH_CTRL1_REG, RTC_CNTL_TOUCH_MEAS_NUM);
assert(touch_mask != 0 && "wakeup reason is RTC_TOUCH_TRIG_EN but SENS_TOUCH_MEAS_EN is zero");
return (touch_pad_t) (__builtin_ffs(touch_mask) - 1);
touch_pad_t pad_num;
esp_err_t ret = touch_pad_get_wakeup_status(&pad_num);
assert(ret == ESP_OK && "wakeup reason is RTC_TOUCH_TRIG_EN but SENS_TOUCH_MEAS_EN is zero");
return pad_num;
}
esp_err_t esp_sleep_enable_ext0_wakeup(gpio_num_t gpio_num, int level)
@@ -423,7 +424,7 @@ esp_err_t esp_sleep_enable_ext0_wakeup(gpio_num_t gpio_num, int level)
ESP_LOGE(TAG, "Conflicting wake-up triggers: touch / ULP");
return ESP_ERR_INVALID_STATE;
}
s_config.ext0_rtc_gpio_num = rtc_gpio_desc[gpio_num].rtc_num;
s_config.ext0_rtc_gpio_num = gpio_num;
s_config.ext0_trigger_level = level;
s_config.wakeup_triggers |= RTC_EXT0_TRIG_EN;
return ESP_OK;
@@ -437,13 +438,12 @@ static void ext0_wakeup_prepare()
// Set level which will trigger wakeup
SET_PERI_REG_BITS(RTC_CNTL_EXT_WAKEUP_CONF_REG, 0x1,
s_config.ext0_trigger_level, RTC_CNTL_EXT_WAKEUP0_LV_S);
// Find GPIO descriptor in the rtc_gpio_desc table and configure the pad
// Find GPIO descriptor in the rtc_gpio_reg table and configure the pad
for (size_t gpio_num = 0; gpio_num < GPIO_PIN_COUNT; ++gpio_num) {
const rtc_gpio_desc_t* desc = &rtc_gpio_desc[gpio_num];
if (desc->rtc_num == rtc_gpio_num) {
REG_SET_BIT(desc->reg, desc->mux);
SET_PERI_REG_BITS(desc->reg, 0x3, 0, desc->func);
REG_SET_BIT(desc->reg, desc->ie);
if (gpio_num == rtc_gpio_num && RTC_GPIO_IS_VALID_GPIO(gpio_num)) {
rtc_gpio_reg[gpio_num]->mux_sel = 1;
rtc_gpio_reg[gpio_num]->fun_sel = 0;
rtc_gpio_reg[gpio_num]->fun_ie = 1;
break;
}
}
@@ -464,7 +464,7 @@ esp_err_t esp_sleep_enable_ext1_wakeup(uint64_t mask, esp_sleep_ext1_wakeup_mode
ESP_LOGE(TAG, "Not an RTC IO: GPIO%d", gpio);
return ESP_ERR_INVALID_ARG;
}
rtc_gpio_mask |= BIT(rtc_gpio_desc[gpio].rtc_num);
rtc_gpio_mask |= BIT(gpio);
}
s_config.ext1_rtc_gpio_mask = rtc_gpio_mask;
s_config.ext1_trigger_mode = mode;
@@ -477,26 +477,27 @@ static void ext1_wakeup_prepare()
// Configure all RTC IOs selected as ext1 wakeup inputs
uint32_t rtc_gpio_mask = s_config.ext1_rtc_gpio_mask;
for (int gpio = 0; gpio < GPIO_PIN_COUNT && rtc_gpio_mask != 0; ++gpio) {
int rtc_pin = rtc_gpio_desc[gpio].rtc_num;
if ((rtc_gpio_mask & BIT(rtc_pin)) == 0) {
if(!RTC_GPIO_IS_VALID_GPIO(gpio)) {
continue;
}
if ((rtc_gpio_mask & BIT(gpio)) == 0) {
continue;
}
const rtc_gpio_desc_t* desc = &rtc_gpio_desc[gpio];
// Route pad to RTC
REG_SET_BIT(desc->reg, desc->mux);
SET_PERI_REG_BITS(desc->reg, 0x3, 0, desc->func);
rtc_gpio_reg[gpio]->mux_sel = 1;
rtc_gpio_reg[gpio]->fun_sel = 0;
// set input enable in sleep mode
REG_SET_BIT(desc->reg, desc->ie);
rtc_gpio_reg[gpio]->fun_ie = 1;
// Pad configuration depends on RTC_PERIPH state in sleep mode
if (s_config.pd_options[ESP_PD_DOMAIN_RTC_PERIPH] != ESP_PD_OPTION_ON) {
// RTC_PERIPH will be powered down, so RTC_IO_ registers will
// loose their state. Lock pad configuration.
// Pullups/pulldowns also need to be disabled.
REG_CLR_BIT(desc->reg, desc->pulldown);
REG_CLR_BIT(desc->reg, desc->pullup);
rtc_gpio_reg[gpio]->rue = 0;
rtc_gpio_reg[gpio]->rde = 0;
}
// Keep track of pins which are processed to bail out early
rtc_gpio_mask &= ~BIT(rtc_pin);
rtc_gpio_mask &= ~BIT(gpio);
}
// Clear state from previous wakeup
REG_SET_BIT(RTC_CNTL_EXT_WAKEUP1_REG, RTC_CNTL_EXT_WAKEUP1_STATUS_CLR);
@@ -519,7 +520,7 @@ uint64_t esp_sleep_get_ext1_wakeup_status()
if (!RTC_GPIO_IS_VALID_GPIO(gpio)) {
continue;
}
int rtc_pin = rtc_gpio_desc[gpio].rtc_num;
int rtc_pin = gpio;
if ((status & BIT(rtc_pin)) == 0) {
continue;
}