mirror of https://github.com/ARMmbed/mbed-os.git
120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
/* mbed Microcontroller Library
|
|
* Copyright (c) 2006-2013 ARM Limited
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#include "hal/gpio_api.h"
|
|
#include "platform/mbed_toolchain.h"
|
|
|
|
static inline void _gpio_init_in(gpio_t *gpio, PinName pin, PinMode mode)
|
|
{
|
|
gpio_init(gpio, pin);
|
|
if (pin != NC) {
|
|
gpio_dir(gpio, PIN_INPUT);
|
|
gpio_mode(gpio, mode);
|
|
}
|
|
}
|
|
|
|
static inline void _gpio_init_out(gpio_t *gpio, PinName pin, PinMode mode, int value)
|
|
{
|
|
gpio_init(gpio, pin);
|
|
if (pin != NC) {
|
|
gpio_write(gpio, value);
|
|
gpio_dir(gpio, PIN_OUTPUT);
|
|
gpio_mode(gpio, mode);
|
|
}
|
|
}
|
|
|
|
void gpio_init_in(gpio_t *gpio, PinName pin)
|
|
{
|
|
gpio_init_in_ex(gpio, pin, PullDefault);
|
|
}
|
|
|
|
void gpio_init_in_ex(gpio_t *gpio, PinName pin, PinMode mode)
|
|
{
|
|
_gpio_init_in(gpio, pin, mode);
|
|
}
|
|
|
|
void gpio_init_out(gpio_t *gpio, PinName pin)
|
|
{
|
|
gpio_init_out_ex(gpio, pin, 0);
|
|
}
|
|
|
|
void gpio_init_out_ex(gpio_t *gpio, PinName pin, int value)
|
|
{
|
|
_gpio_init_out(gpio, pin, PullNone, value);
|
|
}
|
|
|
|
void gpio_init_inout(gpio_t *gpio, PinName pin, PinDirection direction, PinMode mode, int value)
|
|
{
|
|
if (direction == PIN_INPUT) {
|
|
_gpio_init_in(gpio, pin, mode);
|
|
if (pin != NC) {
|
|
gpio_write(gpio, value); // we prepare the value in case it is switched later
|
|
}
|
|
} else {
|
|
_gpio_init_out(gpio, pin, mode, value);
|
|
}
|
|
}
|
|
|
|
#ifdef TARGET_FF_ARDUINO
|
|
|
|
typedef enum {
|
|
DEFAULT_GPIO = 0,
|
|
} DefaultGPIOPeripheralName;
|
|
|
|
MBED_WEAK const PinMap *gpio_pinmap()
|
|
{
|
|
// Targets should override this weak implementation to provide correct data.
|
|
static const PinMap empty_gpio_pinmap[] = {
|
|
{D0, DEFAULT_GPIO, 0},
|
|
{D1, DEFAULT_GPIO, 0},
|
|
{D2, DEFAULT_GPIO, 0},
|
|
{D3, DEFAULT_GPIO, 0},
|
|
{D4, DEFAULT_GPIO, 0},
|
|
{D5, DEFAULT_GPIO, 0},
|
|
{D6, DEFAULT_GPIO, 0},
|
|
{D7, DEFAULT_GPIO, 0},
|
|
{D8, DEFAULT_GPIO, 0},
|
|
{D9, DEFAULT_GPIO, 0},
|
|
{D10, DEFAULT_GPIO, 0},
|
|
{D11, DEFAULT_GPIO, 0},
|
|
{D12, DEFAULT_GPIO, 0},
|
|
{D13, DEFAULT_GPIO, 0},
|
|
{D14, DEFAULT_GPIO, 0},
|
|
{D15, DEFAULT_GPIO, 0},
|
|
{A0, DEFAULT_GPIO, 0},
|
|
{A1, DEFAULT_GPIO, 0},
|
|
{A2, DEFAULT_GPIO, 0},
|
|
{A3, DEFAULT_GPIO, 0},
|
|
{A4, DEFAULT_GPIO, 0},
|
|
{A5, DEFAULT_GPIO, 0},
|
|
|
|
{NC, NC, 0},
|
|
};
|
|
return empty_gpio_pinmap;
|
|
}
|
|
|
|
#else
|
|
|
|
MBED_WEAK const PinMap *gpio_pinmap()
|
|
{
|
|
static const PinMap empty_gpio_pinmap[] = {
|
|
{NC, NC, 0},
|
|
};
|
|
return empty_gpio_pinmap;
|
|
}
|
|
|
|
#endif
|