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Improve watch_tcc to decouple leds and buzzer as much as allowed

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As a positive side effect, the led will stop emitting the faintiest
of blinks when the buzzer starts playing.
This commit is contained in:
Alessandro Genova
2025-08-17 23:14:25 -04:00
parent 1b9624d042
commit 04276c1999
6 changed files with 76 additions and 108 deletions
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watch-library/hardware/watch/watch_tcc.c
+69 -58
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@@ -27,10 +27,15 @@
#include "tcc.h"
#include "tc.h"
void _watch_enable_tcc(void);
static void _watch_enable_tcc(void);
static void _watch_disable_tcc(void);
static void _watch_maybe_enable_tcc(void);
static void _watch_maybe_disable_tcc(void);
static void _watch_enable_led_pins(void);
static void _watch_disable_led_pins(void);
static void (*_cb_tc0)(void) = NULL;
void cb_watch_buzzer_seq(void);
void cb_watch_buzzer_raw_source(void);
static void cb_watch_buzzer_seq(void);
static void cb_watch_buzzer_raw_source(void);
static uint16_t _seq_position;
static int8_t _tone_ticks, _repeat_counter;
@@ -84,14 +89,11 @@ void watch_buzzer_play_sequence_with_volume(int8_t *note_sequence, void (*callba
// Abort any previous sequence
watch_buzzer_abort_sequence();
_buzzer_is_active = true;
if (_cb_start_global) {
_cb_start_global();
}
watch_enable_buzzer_and_leds();
watch_enable_buzzer();
watch_set_buzzer_off();
_sequence = note_sequence;
_cb_finished = callback_on_end;
@@ -154,13 +156,11 @@ void watch_buzzer_play_raw_source_with_volume(watch_buzzer_raw_source_t raw_sour
// Abort any previous sequence
watch_buzzer_abort_sequence();
_buzzer_is_active = true;
if (_cb_start_global) {
_cb_start_global();
}
watch_enable_buzzer_and_leds();
watch_enable_buzzer();
watch_set_buzzer_off();
_raw_source = raw_source;
@@ -213,14 +213,12 @@ void watch_buzzer_abort_sequence(void) {
return;
}
_buzzer_is_active = false;
_tc0_stop();
watch_set_buzzer_off();
// disable TCC
watch_maybe_disable_buzzer_and_leds();
watch_disable_buzzer();
if (_cb_stop_global) {
_cb_stop_global();
@@ -244,11 +242,11 @@ void irq_handler_tc0(void) {
TC0->COUNT8.INTFLAG.reg |= TC_INTFLAG_OVF;
}
bool watch_is_buzzer_or_led_enabled(void){
return tcc_is_enabled(0);
}
void _watch_maybe_enable_tcc(void) {
if (!_buzzer_is_active && !_led_is_active) {
return;
}
void watch_enable_buzzer_and_leds(void) {
if (!tcc_is_enabled(0)) {
// tcc_set_run_in_standby(0, true);
_watch_enable_tcc();
@@ -257,23 +255,26 @@ void watch_enable_buzzer_and_leds(void) {
}
}
void watch_disable_buzzer_and_leds(void) {
void _watch_maybe_disable_tcc(void) {
if (_buzzer_is_active || _led_is_active) {
return;
}
if (tcc_is_enabled(0)) {
_tcc_write_RUNSTDBY(false);
_watch_disable_tcc();
}
}
void watch_maybe_disable_buzzer_and_leds(void) {
if (_buzzer_is_active || _led_is_active) {
return;
}
watch_disable_buzzer_and_leds();
void watch_enable_buzzer(void) {
_buzzer_is_active = true;
_watch_maybe_enable_tcc();
}
void watch_enable_buzzer(void) {
watch_enable_buzzer_and_leds();
void watch_disable_buzzer(void) {
_buzzer_is_active = false;
watch_set_buzzer_off();
_watch_maybe_disable_tcc();
}
void watch_set_buzzer_period_and_duty_cycle(uint32_t period, uint8_t duty) {
@@ -286,10 +287,6 @@ void watch_set_buzzer_period_and_duty_cycle(uint32_t period, uint8_t duty) {
}
}
void watch_disable_buzzer(void) {
watch_maybe_disable_buzzer_and_leds();
}
inline void watch_set_buzzer_on(void) {
HAL_GPIO_BUZZER_out();
HAL_GPIO_BUZZER_pmuxen(HAL_GPIO_PMUX_TCC_ALT);
@@ -356,21 +353,6 @@ void _watch_enable_tcc(void) {
tcc_set_cc(0, (WATCH_BLUE_TCC_CHANNEL) % 4, 0, false);
#endif
// enable LED PWM pins (the LED driver assumes if the TCC is on, the pins are enabled)
HAL_GPIO_RED_pmuxen(HAL_GPIO_PMUX_TCC_ALT);
HAL_GPIO_RED_drvstr(1);
HAL_GPIO_RED_out();
#ifdef WATCH_GREEN_TCC_CHANNEL
HAL_GPIO_GREEN_pmuxen(HAL_GPIO_PMUX_TCC_ALT);
HAL_GPIO_GREEN_drvstr(1);
HAL_GPIO_GREEN_out();
#endif
#ifdef WATCH_BLUE_TCC_CHANNEL
HAL_GPIO_BLUE_pmuxen(HAL_GPIO_PMUX_TCC_ALT);
HAL_GPIO_BLUE_drvstr(1);
HAL_GPIO_BLUE_out();
#endif
// Enable the TCC
tcc_enable(0);
}
@@ -393,11 +375,45 @@ void _watch_disable_tcc(void) {
}
void watch_enable_leds(void) {
watch_enable_buzzer_and_leds();
_led_is_active = true;
_watch_enable_led_pins();
_watch_maybe_enable_tcc();
}
void watch_disable_leds(void) {
watch_maybe_disable_buzzer_and_leds();
_led_is_active = false;
_watch_disable_led_pins();
_watch_maybe_disable_tcc();
}
void _watch_enable_led_pins(void) {
// enable LED PWM pins (the LED driver assumes if the TCC is on, the pins are enabled)
HAL_GPIO_RED_pmuxen(HAL_GPIO_PMUX_TCC_ALT);
HAL_GPIO_RED_drvstr(1);
HAL_GPIO_RED_out();
#ifdef WATCH_GREEN_TCC_CHANNEL
HAL_GPIO_GREEN_pmuxen(HAL_GPIO_PMUX_TCC_ALT);
HAL_GPIO_GREEN_drvstr(1);
HAL_GPIO_GREEN_out();
#endif
#ifdef WATCH_BLUE_TCC_CHANNEL
HAL_GPIO_BLUE_pmuxen(HAL_GPIO_PMUX_TCC_ALT);
HAL_GPIO_BLUE_drvstr(1);
HAL_GPIO_BLUE_out();
#endif
}
void _watch_disable_led_pins(void) {
HAL_GPIO_RED_pmuxdis();
HAL_GPIO_RED_off();
#ifdef WATCH_GREEN_TCC_CHANNEL
HAL_GPIO_GREEN_pmuxdis();
HAL_GPIO_GREEN_off();
#endif
#ifdef WATCH_BLUE_TCC_CHANNEL
HAL_GPIO_BLUE_pmuxdis();
HAL_GPIO_BLUE_off();
#endif
}
void watch_set_led_color(uint8_t red, uint8_t green) {
@@ -429,19 +445,14 @@ void watch_set_led_color_rgb(uint8_t red, uint8_t green, uint8_t blue) {
_current_led_color[0] = red;
_current_led_color[1] = green;
_current_led_color[2] = blue;
_led_is_active = true;
watch_enable_buzzer_and_leds();
} else {
_led_is_active = false;
}
if (tcc_is_enabled(0)) {
watch_enable_leds();
uint32_t period = tcc_get_period(0);
_watch_set_led_duty_cycle(period, red, green, blue);
}
if (!turning_on) {
watch_maybe_disable_buzzer_and_leds();
} else {
if (tcc_is_enabled(0)) {
_watch_set_led_duty_cycle(1, red, green, blue);
}
watch_disable_leds();
}
}