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usb: hid: Add macros for REPORT descriptor

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Add macros for constructing HID Report Descriptors.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2018-01-26 14:47:51 +02:00 • committed by Anas Nashif
commit f908387e9a
1 changed files with 60 additions and 0 deletions
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60
include/usb/class/usb_hid.h
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@ -59,6 +59,66 @@ struct hid_ops {
hid_cb_t set_protocol;
};
/* HID Report Definitions */
/* HID Items types */
#define ITEM_MAIN 0x0
#define ITEM_GLOBAL 0x1
#define ITEM_LOCAL 0x2
/* HID Main Items tags */
#define ITEM_TAG_INPUT 0x8
#define ITEM_TAG_OUTPUT 0x9
#define ITEM_TAG_COLLECTION 0xA
#define ITEM_TAG_COLLECTION_END 0xC
/* HID Global Items tags */
#define ITEM_TAG_USAGE_PAGE 0x0
#define ITEM_TAG_LOGICAL_MIN 0x1
#define ITEM_TAG_LOGICAL_MAX 0x2
#define ITEM_TAG_REPORT_SIZE 0x7
#define ITEM_TAG_REPORT_ID 0x8
#define ITEM_TAG_REPORT_COUNT 0x9
/* HID Local Items tags */
#define ITEM_TAG_USAGE 0x0
#define HID_ITEM(bTag, bType, bSize) (((bTag & 0xF) << 4) | \
((bType & 0x3) << 2) | (bSize & 0x3))
#define HID_MAIN_ITEM(bTag, bSize) HID_ITEM(bTag, ITEM_MAIN, bSize)
#define HID_GLOBAL_ITEM(bTag, bSize) HID_ITEM(bTag, ITEM_GLOBAL, bSize)
#define HID_LOCAL_ITEM(bTag, bSize) HID_ITEM(bTag, ITEM_LOCAL, bSize)
#define HID_MI_COLLECTION HID_MAIN_ITEM(ITEM_TAG_COLLECTION, 1)
#define HID_MI_COLLECTION_END HID_MAIN_ITEM(ITEM_TAG_COLLECTION_END, \
0)
#define HID_MI_INPUT HID_MAIN_ITEM(ITEM_TAG_INPUT, 1)
#define HID_MI_OUTPUT HID_MAIN_ITEM(ITEM_TAG_OUTPUT, 1)
#define HID_GI_USAGE_PAGE HID_GLOBAL_ITEM(ITEM_TAG_USAGE_PAGE, 1)
#define HID_GI_LOGICAL_MIN(size) HID_GLOBAL_ITEM(ITEM_TAG_LOGICAL_MIN, \
size)
#define HID_GI_LOGICAL_MAX(size) HID_GLOBAL_ITEM(ITEM_TAG_LOGICAL_MAX, \
size)
#define HID_GI_REPORT_SIZE HID_GLOBAL_ITEM(ITEM_TAG_REPORT_SIZE, \
1)
#define HID_GI_REPORT_ID HID_GLOBAL_ITEM(ITEM_TAG_REPORT_ID, \
1)
#define HID_GI_REPORT_COUNT HID_GLOBAL_ITEM(ITEM_TAG_REPORT_COUNT, \
1)
#define HID_LI_USAGE HID_LOCAL_ITEM(ITEM_TAG_USAGE, 1)
/* Defined in Universal Serial Bus HID Usage Tables version 1.11 */
#define USAGE_GEN_DESKTOP 0x01
/* Generic Desktop Page usages */
#define USAGE_GEN_DESKTOP_UNDEFINED 0x00
/* Collection types */
#define COLLECTION_APPLICATION 0x01
/* Register HID device */
void usb_hid_register_device(const u8_t *desc, size_t size, struct hid_ops *op);