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Enable SLEEP_LED on ATmega32A (#8531)

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* Port over some AVR backlight logic to SLEEP_LED

* Port over some AVR backlight logic to SLEEP_LED - add timer 3

* Port over some AVR backlight logic to SLEEP_LED - clang format

* Enable SLEEP_LED within vusb protocol
This commit is contained in:
Joel Challis 2020-03-26 18:21:33 +00:00 committed by GitHub
parent c077300e19
commit 23e942ae4e
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 44 additions and 9 deletions
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39
tmk_core/common/avr/sleep_led.c
View file

@ -5,6 +5,30 @@
#include "led.h"
#include "sleep_led.h"
#ifndef SLEEP_LED_TIMER
# define SLEEP_LED_TIMER 1
#endif
#if SLEEP_LED_TIMER == 1
# define TCCRxB TCCR1B
# define TIMERx_COMPA_vect TIMER1_COMPA_vect
# if defined(__AVR_ATmega32A__) // This MCU has only one TIMSK register
# define TIMSKx TIMSK
# else
# define TIMSKx TIMSK1
# endif
# define OCIExA OCIE1A
# define OCRxx OCR1A
#elif SLEEP_LED_TIMER == 3
# define TCCRxB TCCR3B
# define TIMERx_COMPA_vect TIMER3_COMPA_vect
# define TIMSKx TIMSK3
# define OCIExA OCIE3A
# define OCRxx OCR3A
#else
error("Invalid SLEEP_LED_TIMER config")
#endif
/* Software PWM
* ______ ______ __
* | ON |___OFF___| ON |___OFF___| ....
@ -25,14 +49,13 @@
void sleep_led_init(void) {
/* Timer1 setup */
/* CTC mode */
TCCR1B |= _BV(WGM12);
TCCRxB |= _BV(WGM12);
/* Clock selelct: clk/1 */
TCCR1B |= _BV(CS10);
TCCRxB |= _BV(CS10);
/* Set TOP value */
uint8_t sreg = SREG;
cli();
OCR1AH = (SLEEP_LED_TIMER_TOP >> 8) & 0xff;
OCR1AL = SLEEP_LED_TIMER_TOP & 0xff;
OCRxx = SLEEP_LED_TIMER_TOP;
SREG = sreg;
}
@ -42,7 +65,7 @@ void sleep_led_init(void) {
*/
void sleep_led_enable(void) {
/* Enable Compare Match Interrupt */
TIMSK1 |= _BV(OCIE1A);
TIMSKx |= _BV(OCIExA);
}
/** \brief Sleep LED disable
@ -51,7 +74,7 @@ void sleep_led_enable(void) {
*/
void sleep_led_disable(void) {
/* Disable Compare Match Interrupt */
TIMSK1 &= ~_BV(OCIE1A);
TIMSKx &= ~_BV(OCIExA);
}
/** \brief Sleep LED toggle
@ -60,7 +83,7 @@ void sleep_led_disable(void) {
*/
void sleep_led_toggle(void) {
/* Disable Compare Match Interrupt */
TIMSK1 ^= _BV(OCIE1A);
TIMSKx ^= _BV(OCIExA);
}
/** \brief Breathing Sleep LED brighness(PWM On period) table
@ -72,7 +95,7 @@ void sleep_led_toggle(void) {
*/
static const uint8_t breathing_table[64] PROGMEM = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10, 15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252, 255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23, 15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
ISR(TIMER1_COMPA_vect) {
ISR(TIMERx_COMPA_vect) {
/* Software PWM
* timer:1111 1111 1111 1111
* \_____/\/ \_______/____ count(0-255)

12
tmk_core/protocol/vusb/main.c
View file

@ -20,6 +20,9 @@
#include "timer.h"
#include "uart.h"
#include "debug.h"
#ifdef SLEEP_LED_ENABLE
# include "sleep_led.h"
#endif
#define UART_BAUD_RATE 115200
@ -59,6 +62,9 @@ int main(void) {
initForUsbConnectivity();
keyboard_init();
#ifdef SLEEP_LED_ENABLE
sleep_led_init();
#endif
debug("main loop\n");
while (1) {
@ -67,10 +73,16 @@ int main(void) {
suspended = false;
usbSofCount = 0;
last_timer = timer_read();
# ifdef SLEEP_LED_ENABLE
sleep_led_disable();
# endif
} else {
// Suspend when no SOF in 3ms-10ms(7.1.7.4 Suspending of USB1.1)
if (timer_elapsed(last_timer) > 5) {
suspended = true;
# ifdef SLEEP_LED_ENABLE
sleep_led_enable();
# endif
/*
uart_putchar('S');
_delay_ms(1);