mirror of https://github.com/arendst/Tasmota.git
112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/*
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timer.c - Timer1 library for esp8266
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Copyright (c) 2015 Hristo Gochkov. All rights reserved.
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This file is part of the esp8266 core for Arduino environment.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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// Use PWM from core 2.4.0 as all other version produce LED flickering when settings are saved to flash. Still true for 2.5.0
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//#include <core_version.h>
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//#if defined(ARDUINO_ESP8266_RELEASE_2_3_0) || defined(ARDUINO_ESP8266_RELEASE_2_4_0) || defined(ARDUINO_ESP8266_RELEASE_2_4_1) || defined(ARDUINO_ESP8266_RELEASE_2_4_2)
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//#warning **** Tasmota is using v2.4.0 timer.c as planned ****
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#include "wiring_private.h"
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#include "pins_arduino.h"
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#include "c_types.h"
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#include "ets_sys.h"
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// ------------------------------------------------------------------ -
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// timer 1
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static volatile timercallback timer1_user_cb = NULL;
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void ICACHE_RAM_ATTR timer1_isr_handler(void *para){
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(void) para;
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if ((T1C & ((1 << TCAR) | (1 << TCIT))) == 0) TEIE &= ~TEIE1;//edge int disable
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T1I = 0;
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if (timer1_user_cb) {
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// to make ISR compatible to Arduino AVR model where interrupts are disabled
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// we disable them before we call the client ISR
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uint32_t savedPS = xt_rsil(15); // stop other interrupts
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timer1_user_cb();
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xt_wsr_ps(savedPS);
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}
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}
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void ICACHE_RAM_ATTR timer1_isr_init(void){
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ETS_FRC_TIMER1_INTR_ATTACH(timer1_isr_handler, NULL);
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}
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void timer1_attachInterrupt(timercallback userFunc) {
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timer1_user_cb = userFunc;
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ETS_FRC1_INTR_ENABLE();
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}
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void ICACHE_RAM_ATTR timer1_detachInterrupt(void) {
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timer1_user_cb = 0;
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TEIE &= ~TEIE1;//edge int disable
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ETS_FRC1_INTR_DISABLE();
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}
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void timer1_enable(uint8_t divider, uint8_t int_type, uint8_t reload){
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T1C = (1 << TCTE) | ((divider & 3) << TCPD) | ((int_type & 1) << TCIT) | ((reload & 1) << TCAR);
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T1I = 0;
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}
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void ICACHE_RAM_ATTR timer1_write(uint32_t ticks){
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T1L = ((ticks)& 0x7FFFFF);
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if ((T1C & (1 << TCIT)) == 0) TEIE |= TEIE1;//edge int enable
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}
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void ICACHE_RAM_ATTR timer1_disable(void){
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T1C = 0;
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T1I = 0;
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}
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//-------------------------------------------------------------------
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// timer 0
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static volatile timercallback timer0_user_cb = NULL;
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void ICACHE_RAM_ATTR timer0_isr_handler(void* para){
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(void) para;
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if (timer0_user_cb) {
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// to make ISR compatible to Arduino AVR model where interrupts are disabled
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// we disable them before we call the client ISR
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uint32_t savedPS = xt_rsil(15); // stop other interrupts
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timer0_user_cb();
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xt_wsr_ps(savedPS);
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}
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}
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void timer0_isr_init(void){
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ETS_CCOMPARE0_INTR_ATTACH(timer0_isr_handler, NULL);
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}
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void timer0_attachInterrupt(timercallback userFunc) {
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timer0_user_cb = userFunc;
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ETS_CCOMPARE0_ENABLE();
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}
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void ICACHE_RAM_ATTR timer0_detachInterrupt(void) {
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timer0_user_cb = NULL;
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ETS_CCOMPARE0_DISABLE();
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}
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//#endif // ARDUINO_ESP8266_RELEASE
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