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#ifndef USB_DESCRIPTORS_H
#define USB_DESCRIPTORS_H
#include "hid.h"
/*
* TODO: Move into a source file and use extern so there's only ever one copy
* LTO should take care of the rest.
*/
#define U16LE(d) ((d) & 0xff), (((uint16_t)(d) >> 8) & 0xff)
/* Device descriptor */
unsigned char ds_dev[] = {
18, // Length
1, // Descriptor type
U16LE(0x0200), // USB Release
0x00, // Device class
0x00, // Device sub class
0x00, // Device protocol
64, // Max packet size
U16LE(0x16c0), // VID
U16LE(0x05dc), // PID
U16LE(0x0001), // Device relase
1, // Manufacturer string
0, // Product string
0, // Serial number string
1, // Number of configurations
};
/* Configuration descriptor */
#define DS_CONF_SIZE 34
unsigned char ds_conf[] = {
/* Configuration */
9, // Length
2, // Descriptor type
U16LE(DS_CONF_SIZE), // Total length
1, // Number of interfaces
1, // Configuration value
0, // Configuration string
0xc0, // Attributes (1SR00000, S - Self powered, R - Remote wakeup)
50, // Maximum current (multiples of 2mA)
/* Interface */
9, // Length
4, // Descriptor type
0, // Interface number
0, // Alternate setting
1, // Number of endpoints
3, // Interface class
1, // Interface sub class
2, // Interface protocol
0, // Interface string
/* HID */
9, // Length
33, // Descriptor type
U16LE(0x0111), // HID Class spec version
0, // Country code
1, // Number of descriptors
34, // Descriptor type
#define DS_HIDREP_SIZE 52
U16LE(DS_HIDREP_SIZE), // Descriptor length
/* Endpoint */
7, // Length
5, // Descriptor type
0x81, // Endpoint address (D000NNNN, D - Direction (0 OUT, 1 IN), N - Endpoint No.)
0x03, // Attributes (00UUSSTT, U - Usage type, S - Synch type, T - Transfer type)
U16LE(64), // Max packet size
1, // Interval (1ms Frames)
};
_Static_assert(sizeof ds_conf == DS_CONF_SIZE, "sizeof ds_conf != DS_CONF_SIZE");
/* HID Report descriptor */
unsigned char ds_hidrep[] = {
HR_USAGE_PAGE(1), HR_GENERIC_DESKTOP,
HR_USAGE(1), HR_MOUSE,
HR_COLLECTION(1), HR_APPLICATION,
HR_USAGE(1), HR_POINTER,
HR_COLLECTION(1), HR_PHYSICAL,
HR_USAGE_PAGE(1), HR_BUTTON,
HR_USAGE_MINIMUM(1), 1,
HR_USAGE_MAXIMUM(1), 5,
HR_LOGICAL_MINIMUM(1), 0,
HR_LOGICAL_MAXIMUM(1), 1,
HR_REPORT_COUNT(1), 5,
HR_REPORT_SIZE(1), 1,
HR_INPUT(1), HR_DATA | HR_VARIABLE | HR_ABSOLUTE | HR_BIT_FIELD,
HR_REPORT_COUNT(1), 1,
HR_REPORT_SIZE(1), 3,
HR_INPUT(1), HR_CONSTANT | HR_ARRAY | HR_ABSOLUTE | HR_BIT_FIELD,
HR_USAGE_PAGE(1), HR_GENERIC_DESKTOP,
HR_USAGE(1), HR_X,
HR_USAGE(1), HR_Y,
HR_USAGE(1), HR_WHEEL,
HR_LOGICAL_MINIMUM(1), -127,
HR_LOGICAL_MAXIMUM(1), 127,
HR_REPORT_SIZE(1), 8,
HR_REPORT_COUNT(1), 3,
HR_INPUT(1), HR_DATA | HR_VARIABLE | HR_RELATIVE | HR_BIT_FIELD,
HR_END_COLLECTION(0),
HR_END_COLLECTION(0),
};
_Static_assert(sizeof ds_hidrep == DS_HIDREP_SIZE, "sizeof ds_hidrep != DS_HIDREP_SIZE");
/* Language descriptor */
unsigned char ds_lang[] = {
4, // Length
3, // Descriptor type
0x09, 0x04 // Language ID
};
_Static_assert(sizeof ds_lang == 4, "sizeof ds_lang != 4");
/* String descriptor 1 */
#define DS_STR1_SIZE 22
unsigned char ds_str1[] = {
22, // Length
3, // Descriptor type
U16LE(0x74), // t
U16LE(0x68), // h
U16LE(0x65), // e
U16LE(0x2d), // -
U16LE(0x74), // t
U16LE(0x6b), // k
U16LE(0x2e), // .
U16LE(0x63), // c
U16LE(0x6f), // o
U16LE(0x6d), // m
};
_Static_assert(sizeof ds_str1 == DS_STR1_SIZE, "sizeof ds_str1 != DS_STR1_SIZE");
#endif /* USB_DESCRIPTORS_H */
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