giomba/nes-proj
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Use the GPIO HAL (CC2538DK)

Browse Source
This commit is contained in:
George Oikonomou 2017-12-17 03:33:05 +00:00
parent 488a906018
commit df0659cd1a
1 changed files with 31 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
arch/platform/cc2538dk/dev/button-sensor.c
View File

@ -88,15 +88,8 @@ config(uint32_t port_base, uint32_t pin_mask)
GPIO_ENABLE_INTERRUPT(port_base, pin_mask);
}
/*---------------------------------------------------------------------------*/
/**
* \brief Callback registered with the GPIO module. Gets fired with a button
* port/pin generates an interrupt
* \param port The port number that generated the interrupt
* \param pin The pin number that generated the interrupt. This is the pin
* absolute number (i.e. 0, 1, ..., 7), not a mask
*/
static void
btn_callback(uint8_t port, uint8_t pin)
button_press_handler(gpio_hal_pin_mask_t pin_mask)
{
if(!timer_expired(&debouncetimer)) {
return;
@ -104,19 +97,39 @@ btn_callback(uint8_t port, uint8_t pin)
timer_set(&debouncetimer, CLOCK_SECOND / 8);
if((port == BUTTON_SELECT_PORT) && (pin == BUTTON_SELECT_PIN)) {
if(pin_mask &
(gpio_hal_pin_to_mask(BUTTON_SELECT_PIN) << (BUTTON_SELECT_PORT << 3))) {
sensors_changed(&button_select_sensor);
} else if((port == BUTTON_LEFT_PORT) && (pin == BUTTON_LEFT_PIN)) {
} else if(pin_mask &
(gpio_hal_pin_to_mask(BUTTON_LEFT_PIN) << (BUTTON_LEFT_PORT << 3))) {
sensors_changed(&button_left_sensor);
} else if((port == BUTTON_RIGHT_PORT) && (pin == BUTTON_RIGHT_PIN)) {
} else if(pin_mask &
(gpio_hal_pin_to_mask(BUTTON_RIGHT_PIN) << (BUTTON_RIGHT_PORT << 3))) {
sensors_changed(&button_right_sensor);
} else if((port == BUTTON_UP_PORT) && (pin == BUTTON_UP_PIN)) {
} else if(pin_mask &
(gpio_hal_pin_to_mask(BUTTON_UP_PIN) << (BUTTON_UP_PORT << 3))) {
sensors_changed(&button_up_sensor);
} else if((port == BUTTON_DOWN_PORT) && (pin == BUTTON_DOWN_PIN)) {
} else if(pin_mask &
(gpio_hal_pin_to_mask(BUTTON_DOWN_PIN) << (BUTTON_DOWN_PORT << 3))) {
sensors_changed(&button_down_sensor);
}
}
/*---------------------------------------------------------------------------*/
static gpio_hal_event_handler_t press_handler = {
.next = NULL,
.handler = button_press_handler,
.pin_mask = 0,
};
/*---------------------------------------------------------------------------*/
static void
register_btn_callback(uint8_t port_num, uint8_t pin)
{
press_handler.pin_mask |=
gpio_hal_pin_to_mask(pin) << (port_num << 3);
gpio_hal_register_handler(&press_handler);
}
/*---------------------------------------------------------------------------*/
/**
* \brief Init function for the select button.
*
@ -137,7 +150,7 @@ config_select(int type, int value)
NVIC_EnableIRQ(BUTTON_SELECT_VECTOR);
gpio_register_callback(btn_callback, BUTTON_SELECT_PORT, BUTTON_SELECT_PIN);
register_btn_callback(BUTTON_SELECT_PORT, BUTTON_SELECT_PIN);
return 1;
}
/*---------------------------------------------------------------------------*/
@ -161,7 +174,7 @@ config_left(int type, int value)
NVIC_EnableIRQ(BUTTON_LEFT_VECTOR);
gpio_register_callback(btn_callback, BUTTON_LEFT_PORT, BUTTON_LEFT_PIN);
register_btn_callback(BUTTON_LEFT_PORT, BUTTON_LEFT_PIN);
return 1;
}
/*---------------------------------------------------------------------------*/
@ -185,7 +198,7 @@ config_right(int type, int value)
NVIC_EnableIRQ(BUTTON_RIGHT_VECTOR);
gpio_register_callback(btn_callback, BUTTON_RIGHT_PORT, BUTTON_RIGHT_PIN);
register_btn_callback(BUTTON_RIGHT_PORT, BUTTON_RIGHT_PIN);
return 1;
}
/*---------------------------------------------------------------------------*/
@ -209,7 +222,7 @@ config_up(int type, int value)
NVIC_EnableIRQ(BUTTON_UP_VECTOR);
gpio_register_callback(btn_callback, BUTTON_UP_PORT, BUTTON_UP_PIN);
register_btn_callback(BUTTON_UP_PORT, BUTTON_UP_PIN);
return 1;
}
/*---------------------------------------------------------------------------*/
@ -233,7 +246,7 @@ config_down(int type, int value)
NVIC_EnableIRQ(BUTTON_DOWN_VECTOR);
gpio_register_callback(btn_callback, BUTTON_DOWN_PORT, BUTTON_DOWN_PIN);
register_btn_callback(BUTTON_DOWN_PORT, BUTTON_DOWN_PIN);
return 1;
}
/*---------------------------------------------------------------------------*/