arduino/esp8266
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Define wiring functions as weak

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This way they can be redefined in board variants, allowing for port expansion
This commit is contained in:
Ivan Grokhotkov
2015-01-16 22:46:43 +03:00
parent d3e4d6d9e3
commit 22b3aebdcd
3 changed files with 20 additions and 13 deletions
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3
hardware/arduino/esp8266/cores/esp8266/core_esp8266_wiring_analog.c
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@ -27,7 +27,7 @@ void analogReference(uint8_t mode)
{
}
int analogRead(uint8_t pin)
extern int __analogRead(uint8_t pin)
{
if (pin == 0)
return system_adc_read();
@ -36,3 +36,4 @@ int analogRead(uint8_t pin)
}
extern int analogRead(uint8_t pin) __attribute__ ((weak, alias("__analogRead")));

26
hardware/arduino/esp8266/cores/esp8266/core_esp8266_wiring_digital.c
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@ -72,8 +72,7 @@ static uint32_t g_gpio_function[PINCOUNT] = {
GPIO
};
void pinMode(uint8_t pin, uint8_t mode)
extern void __pinMode(uint8_t pin, uint8_t mode)
{
if (pin == 16)
{
@ -112,7 +111,7 @@ void pinMode(uint8_t pin, uint8_t mode)
}
}
void digitalWrite(uint8_t pin, uint8_t val)
extern void __digitalWrite(uint8_t pin, uint8_t val)
{
if (pin == 16)
{
@ -127,7 +126,7 @@ void digitalWrite(uint8_t pin, uint8_t val)
GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, mask);
}
int digitalRead(uint8_t pin)
extern int __digitalRead(uint8_t pin)
{
if (pin == 16)
return (READ_PERI_REG(RTC_GPIO_IN_DATA) & 1);
@ -135,12 +134,12 @@ int digitalRead(uint8_t pin)
return ((gpio_input_get() >> pin) & 1);
}
void analogWrite(uint8_t pin, int val)
extern void __analogWrite(uint8_t pin, int val)
{
}
typedef void (*inthandler_t)(void);
static inthandler_t g_handlers[PINCOUNT] = { 0 };
typedef void (*voidFuncPtr)(void);
static voidFuncPtr g_handlers[PINCOUNT] = { 0 };
void interrupt_handler(void *arg)
@ -156,7 +155,7 @@ void interrupt_handler(void *arg)
}
}
void attachInterrupt(uint8_t pin, inthandler_t handler, int mode)
extern void __attachInterrupt(uint8_t pin, voidFuncPtr handler, int mode)
{
if (pin < 0 || pin > PINCOUNT)
return;
@ -181,13 +180,13 @@ void attachInterrupt(uint8_t pin, inthandler_t handler, int mode)
}
}
void detachInterrupt(uint8_t pin)
extern void __detachInterrupt(uint8_t pin)
{
g_handlers[pin] = 0;
gpio_pin_intr_state_set(pin, GPIO_PIN_INTR_DISABLE);
}
void initPins()
extern void __initPins()
{
gpio_init();
for (int i = 0; i < PINCOUNT; ++i)
@ -202,4 +201,11 @@ void initPins()
ETS_GPIO_INTR_ATTACH(&interrupt_handler, NULL);
}
extern void pinMode(uint8_t pin, uint8_t mode) __attribute__ ((weak, alias("__pinMode")));
extern void digitalWrite(uint8_t pin, uint8_t val) __attribute__ ((weak, alias("__digitalWrite")));
extern int digitalRead(uint8_t pin) __attribute__ ((weak, alias("__digitalRead")));
extern void analogWrite(uint8_t pin, int val) __attribute__ ((weak, alias("__analogWrite")));
extern void attachInterrupt(uint8_t pin, voidFuncPtr handler, int mode) __attribute__ ((weak, alias("__attachInterrupt")));
extern void detachInterrupt(uint8_t pin) __attribute__ ((weak, alias("__detachInterrupt")));
extern void initPins() __attribute__ ((weak, alias("__initPins")));

4
hardware/arduino/esp8266/variants/esp01/pins_arduino.h
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@ -25,8 +25,6 @@
#ifndef Pins_Arduino_h
#define Pins_Arduino_h
#define PROGMEM
#define NUM_DIGITAL_PINS 16
#define NUM_ANALOG_INPUTS 1
@ -38,7 +36,9 @@ static const uint8_t MOSI = 13;
static const uint8_t MISO = 14;
static const uint8_t SCK = 15;
static const uint8_t BUILTIN_LED = 1;
static const uint8_t A0 = 0;
// These serial port names are intended to allow libraries and architecture-neutral
// sketches to automatically default to the correct port name for a particular type