diff options
Diffstat (limited to 'watch-library/watch/watch_deepsleep.c')
-rw-r--r-- | watch-library/watch/watch_deepsleep.c | 62 |
1 files changed, 50 insertions, 12 deletions
diff --git a/watch-library/watch/watch_deepsleep.c b/watch-library/watch/watch_deepsleep.c index 53a41b5c..ecc10b2b 100644 --- a/watch-library/watch/watch_deepsleep.c +++ b/watch-library/watch/watch_deepsleep.c @@ -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); |