hiddescriptor.c File Reference

HID report descriptor and report data parser implementation. More...

#include <usb/hid/hidparser.h>
#include <errno.h>
#include <stdio.h>
#include <malloc.h>
#include <mem.h>
#include <usb/debug.h>
#include <assert.h>

Go to the source code of this file.

Defines
#define	INSIDE_DELIMITER_SET   2
	Parser is in the set of local items.
#define	OUTSIDE_DELIMITER_SET   0
	Second delimiter tag was read.
#define	START_DELIMITER_SET   1
	First delimiter tag was read.
#define	USB_HID_NEW_REPORT_ITEM   1
	The new report item flag.
#define	USB_HID_NO_ACTION   2
	No special action after the report descriptor tag is processed should be done.
#define	USB_HID_RESET_OFFSET   3
#define	USB_HID_UNKNOWN_TAG   -99
	Unknown tag was founded in report descriptor data.
Functions
void	usb_hid_descriptor_print (usb_hid_report_t *report)
	Prints content of given report descriptor in human readable format.
void	usb_hid_descriptor_print_list (link_t *head)
	Prints content of given list of report items.
void	usb_hid_free_report (usb_hid_report_t *report)
	Frees the HID report descriptor parser structure.
void	usb_hid_free_report_list (link_t *head)
	Releases whole linked list of report items.
int	usb_hid_parse_report_descriptor (usb_hid_report_t *report, const uint8_t *data, size_t size)
	Parse HID report descriptor.
int	usb_hid_report_append_fields (usb_hid_report_t *report, usb_hid_report_item_t *report_item)
usb_hid_report_description_t *	usb_hid_report_find_description (const usb_hid_report_t *report, uint8_t report_id, usb_hid_report_type_t type)
	Finds description of report with given report_id and of given type in opaque report structure.
int	usb_hid_report_init (usb_hid_report_t *report)
	Initialize the report descriptor parser structure.
int	usb_hid_report_parse_global_tag (uint8_t tag, const uint8_t *data, size_t item_size, usb_hid_report_item_t *report_item, usb_hid_report_path_t *usage_path)
	Parse global tags of report descriptor.
int	usb_hid_report_parse_local_tag (uint8_t tag, const uint8_t *data, size_t item_size, usb_hid_report_item_t *report_item, usb_hid_report_path_t *usage_path)
	Parse local tags of report descriptor.
int	usb_hid_report_parse_main_tag (uint8_t tag, const uint8_t *data, size_t item_size, usb_hid_report_item_t *report_item, usb_hid_report_path_t *usage_path)
	Parse main tags of report descriptor.
int	usb_hid_report_parse_tag (uint8_t tag, uint8_t class, const uint8_t *data, size_t item_size, usb_hid_report_item_t *report_item, usb_hid_report_path_t *usage_path)
	Parse one tag of the report descriptor.
usb_hid_report_path_t *	usb_hid_report_path_try_insert (usb_hid_report_t *report, usb_hid_report_path_t *cmp_path)
	Checks if given collection path is already present in report structure and inserts it if not.
uint32_t	usb_hid_report_tag_data_uint32 (const uint8_t *data, size_t size)
	Converts raw data to uint32 (thats the maximum length of short item data).

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Detailed Description

HID report descriptor and report data parser implementation.

Definition in file hiddescriptor.c.

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