kaspar/RIOT
1
0
Fork 0
mirror of https://github.com/RIOT-OS/RIOT.git synced 2025-12-29 00:11:16 +01:00
Code Releases Activity

cpu/cc26x0/gpio: use gpio_irq feature

Browse Source
This commit is contained in:
Hauke Petersen 2018-09-21 08:17:26 +02:00
parent c7e6d15990
commit 84066ea11d
1 changed files with 38 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

72
cpu/cc26x0/periph/gpio.c
View File

@ -22,14 +22,16 @@
#include "cpu.h"
#include "periph/gpio.h"
#define GPIO_ISR_CHAN_NUMOF (32)
#define DOE_SHIFT (29U)
#ifdef MODULE_PERIPH_GPIO_IRQ
#define GPIO_ISR_CHAN_NUMOF (32)
/**
* @brief static callback memory
*/
static gpio_isr_ctx_t gpio_chan[GPIO_ISR_CHAN_NUMOF];
#endif
int gpio_init(gpio_t pin, gpio_mode_t mode)
{
@ -51,38 +53,6 @@ int gpio_init(gpio_t pin, gpio_mode_t mode)
return 0;
}
int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
gpio_cb_t cb, void *arg)
{
int init = gpio_init(pin, mode);
if (init != 0)
return init;
NVIC_EnableIRQ(EDGE_DETECT_IRQN);
IOC->CFG[pin] |= flank;
gpio_chan[pin].cb = cb;
gpio_chan[pin].arg = arg;
/* clears the interrupt flag */
GPIO->EVFLAGS |= (1 << pin);
gpio_irq_enable(pin);
return 0;
}
void gpio_irq_enable(gpio_t pin)
{
IOC->CFG[pin] |= IOCFG_EDGEIRQ_ENABLE;
}
void gpio_irq_disable(gpio_t pin)
{
IOC->CFG[pin] &= ~IOCFG_EDGEIRQ_ENABLE;
}
int gpio_read(gpio_t pin)
{
if (GPIO->DOE & (1 << pin)) {
@ -117,6 +87,39 @@ void gpio_write(gpio_t pin, int value)
}
}
#ifdef MODULE_PERIPH_GPIO_IRQ
int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
gpio_cb_t cb, void *arg)
{
int init = gpio_init(pin, mode);
if (init != 0)
return init;
NVIC_EnableIRQ(EDGE_DETECT_IRQN);
IOC->CFG[pin] |= flank;
gpio_chan[pin].cb = cb;
gpio_chan[pin].arg = arg;
/* clears the interrupt flag */
GPIO->EVFLAGS |= (1 << pin);
gpio_irq_enable(pin);
return 0;
}
void gpio_irq_enable(gpio_t pin)
{
IOC->CFG[pin] |= IOCFG_EDGEIRQ_ENABLE;
}
void gpio_irq_disable(gpio_t pin)
{
IOC->CFG[pin] &= ~IOCFG_EDGEIRQ_ENABLE;
}
void isr_edge(void)
{
for (unsigned pin = 0; pin < GPIO_ISR_CHAN_NUMOF; pin++) {
@ -128,3 +131,4 @@ void isr_edge(void)
}
cortexm_isr_end();
}
#endif