phytec-rpi-gpio

/*

Copyright (c) 2012-2016 Ben Croston

Copyright (c) 2018 PHYTEC America, LLC.

​

Permission is hereby granted, free of charge, to any person obtaining a copy of

this software and associated documentation files (the "Software"), to deal in

the Software without restriction, including without limitation the rights to

use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies

of the Software, and to permit persons to whom the Software is furnished to do

so, subject to the following conditions:

​

The above copyright notice and this permission notice shall be included in all

copies or substantial portions of the Software.

​

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

SOFTWARE.

*/

​

#ifndef __RPI_GPIO_COMMON_H_

#define __RPI_GPIO_COMMON_H_

​

#include <stdint.h>

#include <stdlib.h>

​

#define MODE_UNKNOWN    1

#define BCM     2

#define BOARD       3

​

struct board_pin {

    uint8_t bank;

    uint8_t pin;

};

​

extern int gpio_mode;

extern int gpio_warnings;

extern int setup_error;

extern int module_setup;

extern const int rpi_pin_to_bcm[];

extern const struct board_pin board_pins[];

​

int channel_to_bcm_pin(int channel);

int bcm_to_board_pin(int bcm_pin, const struct board_pin **board_pin_ptr);

​

#endif /* __RPI_GPIO_COMMON_H_ */