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chardev: split up helper functions in gpio_chardev

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Remove some _multiple functions and replace with generic function that
does both. Some general cleanup and will move more interrnal mraa
functions to use the _mraa prefix

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2017-09-19 16:38:19 +02:00
parent 32ab283c2b
commit fbc2ad6045
6 changed files with 529 additions and 397 deletions
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64
include/gpio/gpio_chardev.h Normal file
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@@ -0,0 +1,64 @@
/*
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
* Copyright (c) 2018 Intel Corporation.
*
* 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.
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include "mraa_internal.h"
typedef struct {
int chip_fd;
struct gpiochip_info chip_info;
} mraa_gpiod_chip_info;
typedef struct gpioline_info mraa_gpiod_line_info;
void _mraa_free_gpio_groups(mraa_gpio_context dev);
int _mraa_gpiod_ioctl(int fd, unsigned long gpio_request, void* data);
mraa_gpiod_chip_info* mraa_get_chip_info_by_path(const char* path);
mraa_gpiod_chip_info* mraa_get_chip_info_by_name(const char* name);
mraa_gpiod_chip_info* mraa_get_chip_info_by_label(const char* label);
mraa_gpiod_chip_info* mraa_get_chip_info_by_number(unsigned number);
mraa_gpiod_line_info* mraa_get_line_info_by_chip_number(unsigned chip_number, unsigned line_number);
mraa_gpiod_line_info* mraa_get_line_info_by_chip_name(const char* chip_name, unsigned line_number);
mraa_gpiod_line_info* mraa_get_line_info_by_chip_label(const char* chip_label, unsigned line_number);
int mraa_get_lines_handle(int chip_fd, unsigned line_offsets[], unsigned num_lines, unsigned flags, unsigned default_value);
int mraa_set_line_values(int line_handle, unsigned int num_lines, unsigned char input_values[]);
int mraa_get_line_values(int line_handle, unsigned int num_lines, unsigned char output_values[]);
int mraa_get_number_of_gpio_chips();
/* Multiple gpio support. */
typedef struct _gpio_group* mraa_gpiod_group_t;
#ifdef __cplusplus
}
#endif