arduino/esp8266
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Implement pin interrupts

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This commit is contained in:
Ivan Grokhotkov
2014-12-18 18:47:46 +03:00
parent ab43d404fc
commit b2e2c44125
2 changed files with 54 additions and 11 deletions
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60
hardware/arduino/esp8266/cores/esp8266/core_esp8266_wiring_digital.c
View File

@ -30,6 +30,7 @@
#include "c_types.h"
#include "eagle_soc.h"
#include "gpio.h"
#include "ets_sys.h"
#define PINCOUNT 16
@ -118,6 +119,58 @@ int digitalRead(uint8_t pin)
return ((gpio_input_get() >> pin) & 1);
}
void analogWrite(uint8_t pin, int val)
{
}
typedef void (*inthandler_t)(void);
static inthandler_t g_handlers[PINCOUNT] = { 0 };
void interrupt_handler(void *arg)
{
uint32_t intr_mask = GPIO_REG_READ(GPIO_STATUS_ADDRESS);
for (int pin = 0; intr_mask; intr_mask >>= 1, ++pin)
{
if ((intr_mask & 1) && g_handlers[pin])
{
GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, 1 << pin);
(*g_handlers[pin])();
}
}
}
void attachInterrupt(uint8_t pin, inthandler_t handler, int mode)
{
if (pin < 0 || pin > PINCOUNT)
return;
g_handlers[pin] = handler;
if (mode == RISING)
{
gpio_pin_intr_state_set(pin, GPIO_PIN_INTR_POSEDGE);
}
else if (mode == FALLING)
{
gpio_pin_intr_state_set(pin, GPIO_PIN_INTR_NEGEDGE);
}
else if (mode == CHANGE)
{
gpio_pin_intr_state_set(pin, GPIO_PIN_INTR_ANYEGDE);
}
else
{
gpio_pin_intr_state_set(pin, GPIO_PIN_INTR_DISABLE);
}
}
void detachInterrupt(uint8_t pin)
{
g_handlers[pin] = 0;
gpio_pin_intr_state_set(pin, GPIO_PIN_INTR_DISABLE);
}
void initPins()
{
gpio_init();
@ -130,12 +183,7 @@ void initPins()
PIN_FUNC_SELECT(mux, func);
}
}
ETS_GPIO_INTR_ATTACH(&interrupt_handler, NULL);
}
void analogWrite(uint8_t pin, int val)
{
}

5
hardware/arduino/esp8266/cores/esp8266/core_esp8266_wiring_interrupts.c
View File

@ -30,9 +30,4 @@
#include "wiring_private.h"
void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) {
}
void detachInterrupt(uint8_t interruptNum) {
}