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Adjust CC2538 CPU drivers to use the GPIO HAL

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This commit is contained in:
George Oikonomou 2017-12-17 03:21:36 +00:00
parent 10c2bcde15
commit 095a89d937
3 changed files with 7 additions and 74 deletions
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42
arch/cpu/cc2538/dev/gpio.c
View File

@ -37,46 +37,13 @@
*/
#include "contiki.h"
#include "dev/leds.h"
#include "dev/gpio-hal.h"
#include "dev/gpio.h"
#include "dev/nvic.h"
#include "reg.h"
#include "lpm.h"
#include <string.h>
/**
* \brief Pointer to a function to be called when a GPIO interrupt is detected.
* Callbacks for Port A, Pins[0:7] are stored in positions [0:7] of this
* buffer, Port B callbacks in [8:15] and so on
*/
static gpio_callback_t gpio_callbacks[32];
/*---------------------------------------------------------------------------*/
void
gpio_register_callback(gpio_callback_t f, uint8_t port, uint8_t pin)
{
gpio_callbacks[(port << 3) + pin] = f;
}
/*---------------------------------------------------------------------------*/
/** \brief Run through all registered GPIO callbacks and invoke those
* associated with the \a port and the pins specified by \a mask
* \param mask Search callbacks associated with pins specified by this mask
* \param port Search callbacks associated with this port. Here, port is
* specified as a number between 0 and 3. Port A: 0, Port B: 1 etc */
void
notify(uint8_t mask, uint8_t port)
{
uint8_t i;
gpio_callback_t *f = &gpio_callbacks[port << 3];
for(i = 0; i < 8; i++) {
if(mask & (1 << i)) {
if((*f) != NULL) {
(*f)(port, i);
}
}
f++;
}
}
/*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port \a port
* \param port Number between 0 and 3. Port A: 0, Port B: 1, etc.
@ -93,7 +60,7 @@ gpio_port_isr(uint8_t port)
int_status = GPIO_GET_MASKED_INT_STATUS(base);
power_up_int_status = GPIO_GET_POWER_UP_INT_STATUS(port);
notify(int_status | power_up_int_status, port);
gpio_hal_event_handler((int_status | power_up_int_status) << (port << 3));
GPIO_CLEAR_INTERRUPT(base, int_status);
GPIO_CLEAR_POWER_UP_INTERRUPT(port, power_up_int_status);
@ -110,9 +77,4 @@ GPIO_PORT_ISR(b, B)
GPIO_PORT_ISR(c, C)
GPIO_PORT_ISR(d, D)
/*---------------------------------------------------------------------------*/
void
gpio_init()
{
memset(gpio_callbacks, 0, sizeof(gpio_callbacks));
}
/** @} */

36
arch/cpu/cc2538/dev/gpio.h
View File

@ -42,27 +42,12 @@
*/
#ifndef GPIO_H_
#define GPIO_H_
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "dev/gpio-hal.h"
#include "reg.h"
#include <stdint.h>
/**
* \brief Type definition for callbacks invoked by the GPIO ISRs
* \param port The port that triggered the GPIO interrupt. \e port is passed
* by its numeric representation (Port A:0, B:1 etc). Defines for
* these numeric representations are GPIO_x_NUM
* \param pin The pin that triggered the interrupt, specified by number
* (0, 1, ..., 7)
*
* This is the prototype of a function pointer passed to
* gpio_register_callback(). These callbacks are registered on a port/pin
* basis. When a GPIO port generates an interrupt, if a callback has been
* registered for the port/pin combination, the ISR will invoke it. The ISR
* will pass the port/pin as arguments in that call, so that a developer can
* re-use the same callback for multiple port/pin combinations
*/
typedef void (* gpio_callback_t)(uint8_t port, uint8_t pin);
/*---------------------------------------------------------------------------*/
/** \name Base addresses for the GPIO register instances
* @{
@ -612,21 +597,6 @@ typedef void (* gpio_callback_t)(uint8_t port, uint8_t pin);
#define GPIO_IRQ_DETECT_UNMASK_PAIACK0 0x00000001 /**< Port A bit 0 */
/** @} */
/*---------------------------------------------------------------------------*/
/** \brief Initialise the GPIO module */
void gpio_init();
/**
* \brief Register GPIO callback
* \param f Pointer to a function to be called when \a pin of \a port
* generates an interrupt
* \param port Associate \a f with this port. \e port must be specified with
* its numeric representation (Port A:0, B:1 etc). Defines for these
* numeric representations are GPIO_x_NUM
* \param pin Associate \a f with this pin, which is specified by number
* (0, 1, ..., 7)
*/
void gpio_register_callback(gpio_callback_t f, uint8_t port, uint8_t pin);
#endif /* GPIO_H_ */
/**

3
arch/cpu/cc2538/soc.c
View File

@ -41,6 +41,7 @@
#include "dev/ioc.h"
#include "dev/nvic.h"
#include "dev/sys-ctrl.h"
#include "dev/gpio-hal.h"
#include "lpm.h"
#include "reg.h"
#include "soc.h"
@ -123,7 +124,7 @@ soc_init()
clock_init();
lpm_init();
rtimer_init();
gpio_init();
gpio_hal_init();
}
/*----------------------------------------------------------------------------*/
/** @} */