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external interrupt refactor: allow enabling in watch library functions

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This commit is contained in:
Joey Castillo
2021-08-25 12:15:58 -06:00
parent c35e8e2b07
commit d09d3c3c95
8 changed files with 234 additions and 129 deletions
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62
watch-library/watch/watch_deepsleep.c
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@@ -22,8 +22,10 @@
* SOFTWARE.
*/
static void extwake_callback(uint8_t reason);
ext_irq_cb_t btn_alarm_callback;
ext_irq_cb_t a2_callback;
ext_irq_cb_t d1_callback;
ext_irq_cb_t a4_callback;
static void extwake_callback(uint8_t reason) {
if (reason & RTC_TAMPID_TAMPID2) {
@@ -31,23 +33,59 @@ ext_irq_cb_t d1_callback;
} else if (reason & RTC_TAMPID_TAMPID1) {
if (a2_callback != NULL) a2_callback();
} else if (reason & RTC_TAMPID_TAMPID0) {
if (d1_callback != NULL) d1_callback();
if (a4_callback != NULL) a4_callback();
}
}
void watch_register_extwake_callback(uint8_t pin, ext_irq_cb_t callback) {
void watch_register_extwake_callback(uint8_t pin, ext_irq_cb_t callback, bool level) {
uint32_t pinmux;
if (pin == D1) {
d1_callback = callback;
pinmux = PINMUX_PB00G_RTC_IN0;
} else if (pin == A2) {
a2_callback = callback;
pinmux = PINMUX_PB02G_RTC_IN1;
} else {
return;
hri_rtc_tampctrl_reg_t config = hri_rtc_get_TAMPCTRL_reg(RTC, 0xFFFFFFFF);
switch (pin) {
case A4:
a4_callback = callback;
pinmux = PINMUX_PB00G_RTC_IN0;
config &= ~(3 << RTC_TAMPCTRL_IN0ACT_Pos);
config &= ~(1 << RTC_TAMPCTRL_TAMLVL0_Pos);
config |= 1 << RTC_TAMPCTRL_IN0ACT_Pos;
config |= 1 << RTC_TAMPCTRL_DEBNC0_Pos;
if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL0_Pos;
break;
case A2:
a2_callback = callback;
pinmux = PINMUX_PB02G_RTC_IN1;
config &= ~(3 << RTC_TAMPCTRL_IN1ACT_Pos);
config &= ~(1 << RTC_TAMPCTRL_TAMLVL1_Pos);
config |= 1 << RTC_TAMPCTRL_IN1ACT_Pos;
config |= 1 << RTC_TAMPCTRL_DEBNC1_Pos;
if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL1_Pos;
break;
case BTN_ALARM:
gpio_set_pin_pull_mode(pin, GPIO_PULL_DOWN);
btn_alarm_callback = callback;
pinmux = PINMUX_PA02G_RTC_IN2;
config &= ~(3 << RTC_TAMPCTRL_IN2ACT_Pos);
config &= ~(1 << RTC_TAMPCTRL_TAMLVL2_Pos);
config |= 1 << RTC_TAMPCTRL_IN2ACT_Pos;
config |= 1 << RTC_TAMPCTRL_DEBNC2_Pos;
if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL2_Pos;
break;
default:
return;
}
gpio_set_pin_direction(pin, GPIO_DIRECTION_IN);
gpio_set_pin_function(pin, pinmux);
// disable the RTC
if (hri_rtcmode0_get_CTRLA_ENABLE_bit(RTC)) {
hri_rtcmode0_clear_CTRLA_ENABLE_bit(RTC);
hri_rtcmode0_wait_for_sync(RTC, RTC_MODE0_SYNCBUSY_ENABLE);
}
// update the configuration
hri_rtc_write_TAMPCTRL_reg(RTC, config);
// re-enable the RTC
hri_rtcmode0_set_CTRLA_ENABLE_bit(RTC);
_extwake_register_callback(&CALENDAR_0.device, extwake_callback);
}
@@ -67,7 +105,7 @@ uint32_t watch_get_backup_data(uint8_t reg) {
void watch_enter_deep_sleep() {
// enable and configure the external wake interrupt, if not already set up.
if (btn_alarm_callback == NULL && a2_callback == NULL && d1_callback == NULL) {
if (btn_alarm_callback == NULL && a2_callback == NULL && a4_callback == NULL) {
gpio_set_pin_direction(BTN_ALARM, GPIO_DIRECTION_IN);
gpio_set_pin_pull_mode(BTN_ALARM, GPIO_PULL_DOWN);
gpio_set_pin_function(BTN_ALARM, PINMUX_PA02G_RTC_IN2);