62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
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/*! \file gpio.c
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* \author tkl
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* \date Feb 13, 2012
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* \brief Source file of the architecture independent gpio driver.
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*/
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#include <stddef.h>
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#include "gpio.h"
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int gpio_open(const struct gpio *device)
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{
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if(device == NULL)
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return -1;
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gpio_fp_open_t open = device->fp->open;
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return open(device->arch_dep_device);
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}
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int gpio_close(const struct gpio *device)
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{
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if(device == NULL)
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return -1;
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gpio_fp_close_t close = device->fp->close;
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return close(device->arch_dep_device);
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}
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char gpio_read(const struct gpio *device)
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{
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if(device == NULL)
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return 0;
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gpio_fp_read_t read = device->fp->read;
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return read(device->arch_dep_device);
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}
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void gpio_write(const struct gpio *device, char byte)
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{
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if(device == NULL)
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return;
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gpio_fp_write_t write = device->fp->write;
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write(device->arch_dep_device, byte);
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}
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void gpio_toggle(const struct gpio *device) {
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if(device == NULL)
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return;
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gpio_fp_toggle_t toggle = device->fp->toggle;
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toggle(device->arch_dep_device);
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}
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int gpio_set_exti_callback(const struct gpio *device, const void *callback,
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const void *param)
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{
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if((device == NULL) || (callback == NULL))
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return -1;
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gpio_fp_set_cb_t set_cb = device->fp->set_cb;
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return set_cb(device->arch_dep_device, callback, param);
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}
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