0c44a7291b
This allows to full mux structures which still need the sysfs GPIO numbers. In combination with mraa_find_gpio_line_by_name, this allows for platform setup that is independent of the gpiochip probing order. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
/*
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* Author: Brendan Le Foll <brendan.le.foll@intel.com>
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* Copyright (c) 2018 Intel Corporation.
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "mraa_internal.h"
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#include "linux/gpio.h"
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typedef struct {
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int chip_fd;
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struct gpiochip_info chip_info;
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} mraa_gpiod_chip_info;
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typedef struct gpioline_info mraa_gpiod_line_info;
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void _mraa_free_gpio_groups(mraa_gpio_context dev);
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void _mraa_close_gpio_event_handles(mraa_gpio_context dev);
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void _mraa_close_gpio_desc(mraa_gpio_context dev);
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int _mraa_gpiod_ioctl(int fd, unsigned long gpio_request, void* data);
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mraa_gpiod_chip_info* mraa_get_chip_info_by_path(const char* path);
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mraa_gpiod_chip_info* mraa_get_chip_info_by_name(const char* name);
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mraa_gpiod_chip_info* mraa_get_chip_info_by_label(const char* label);
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mraa_gpiod_chip_info* mraa_get_chip_info_by_number(unsigned number);
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int mraa_get_chip_base_by_number(unsigned number);
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mraa_gpiod_line_info* mraa_get_line_info_from_descriptor(int chip_fd, unsigned line_number);
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mraa_gpiod_line_info* mraa_get_line_info_by_chip_number(unsigned chip_number, unsigned line_number);
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mraa_gpiod_line_info* mraa_get_line_info_by_chip_name(const char* chip_name, unsigned line_number);
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mraa_gpiod_line_info* mraa_get_line_info_by_chip_label(const char* chip_label, unsigned line_number);
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int mraa_get_lines_handle(int chip_fd, unsigned line_offsets[], unsigned num_lines, unsigned flags, unsigned default_value);
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int mraa_set_line_values(int line_handle, unsigned int num_lines, unsigned char input_values[]);
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int mraa_get_line_values(int line_handle, unsigned int num_lines, unsigned char output_values[]);
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mraa_boolean_t mraa_is_gpio_line_kernel_owned(mraa_gpiod_line_info *linfo);
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mraa_boolean_t mraa_is_gpio_line_dir_out(mraa_gpiod_line_info *linfo);
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mraa_boolean_t mraa_is_gpio_line_active_low(mraa_gpiod_line_info *linfo);
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mraa_boolean_t mraa_is_gpio_line_open_drain(mraa_gpiod_line_info *linfo);
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mraa_boolean_t mraa_is_gpio_line_open_source(mraa_gpiod_line_info *linfo);
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int mraa_get_number_of_gpio_chips();
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int mraa_get_chip_infos(mraa_gpiod_chip_info*** cinfos);
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int mraa_find_gpio_line_by_name(const char *name, unsigned *chip_number, unsigned *line_number);
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/* Multiple gpio support. */
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typedef struct _gpio_group* mraa_gpiod_group_t;
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#ifdef __cplusplus
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}
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#endif
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