#include "usb_device_config.h"
#include "usb.h"
#include "usb_device.h"
#include "include/usb/usb_device_class.h"
#include "include/usb/usb_device_hid.h"
#include "usb_device_descriptor.h"
#include "keyboard_descriptors.h"

static usb_device_endpoint_struct_t UsbKeyboardEndpoints[USB_HID_KEYBOARD_ENDPOINT_COUNT] =
{
    {
        USB_HID_KEYBOARD_ENDPOINT_IN | (USB_IN << USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_SHIFT),
        USB_ENDPOINT_INTERRUPT, FS_HID_KEYBOARD_INTERRUPT_IN_PACKET_SIZE,
    },
};

static usb_device_interface_struct_t UsbKeyboardInterface[] =
{
    {
        USB_KEYBOARD_INTERFACE_ALTERNATE_SETTING,
        {
            USB_HID_KEYBOARD_ENDPOINT_COUNT,
            UsbKeyboardEndpoints,
        },
        NULL,
    }
};

static usb_device_interfaces_struct_t UsbKeyboardInterfaces[USB_HID_KEYBOARD_INTERFACE_COUNT] =
{
    {
        USB_HID_KEYBOARD_CLASS,
        USB_HID_KEYBOARD_SUBCLASS,
        USB_HID_KEYBOARD_PROTOCOL,
        USB_HID_KEYBOARD_INTERFACE_INDEX,
        UsbKeyboardInterface,
        sizeof(UsbKeyboardInterface) / sizeof(usb_device_interfaces_struct_t),
    },
};

static usb_device_interface_list_t UsbKeyboardInterfaceList[USB_DEVICE_CONFIGURATION_COUNT] =
{
    {
        USB_HID_KEYBOARD_INTERFACE_COUNT,
        UsbKeyboardInterfaces,
    },
};

usb_device_class_struct_t UsbKeyboardClass = {
    UsbKeyboardInterfaceList,
    kUSB_DeviceClassTypeHid,
    USB_DEVICE_CONFIGURATION_COUNT,
};

uint8_t UsbKeyboardReportDescriptor[USB_DESCRIPTOR_LENGTH_HID_KEYBOARD_REPORT] = {
    0x05U, 0x01U, // Usage Page (Generic Desktop)
    0x09U, 0x06U, // Usage (Keyboard)
    0xA1U, 0x01U, // Collection (Application)
    0x75U, 0x01U, // Report Size (1U)
    0x95U, 0x08U, // Report Count (8U)
    0x05U, 0x07U, // Usage Page (Key Codes)
    0x19U, 0xE0U, // Usage Minimum (224U)
    0x29U, 0xE7U, // Usage Maximum (231U)

    0x15U, 0x00U, // Logical Minimum (0U)
    0x25U, 0x01U, // Logical Maximum (1U)
    0x81U, 0x02U, // Input(Data, Variable, Absolute) Modifier byte

    0x95U, 0x01U, // Report count (1U)
    0x75U, 0x08U, // Report Size (8U)
    0x81U, 0x01U, // Input (Constant), Reserved byte
    0x95U, 0x05U, // Report count (5U)
    0x75U, 0x01U, // Report Size (1U)

    0x05U, 0x01U, // Usage Page (Page# for LEDs)
    0x19U, 0x01U, // Usage Minimum (1U)
    0x29U, 0x05U, // Usage Maximum (5U)
    0x91U, 0x02U, // Output (Data, Variable, Absolute) LED report
    0x95U, 0x01U, // Report count (1U)
    0x75U, 0x03U, // Report Size (3U)
    0x91U, 0x01U, // Output (Constant), LED report padding

    0x95U, 0x06U, // Report count (6U)
    0x75U, 0x08U, // Report Size (8U)
    0x15U, 0x00U, // Logical Minimum (0U)
    0x25U, 0xFFU, // Logical Maximum (255U)
    0x05U, 0x07U, // Usage Page (Key Codes)
    0x19U, 0x00U, // Usage Minimum (0U)
    0x29U, 0xFFU, // Usage Maximum (255U)

    0x81U, 0x00U, // Input(Data, Array), Key arrays(6U bytes)
    0xC0U,        // End collection
};

uint8_t g_UsbKeyboardString[USB_KEYBOARD_STRING_DESCRIPTOR_LENGTH] = {
    sizeof(g_UsbKeyboardString),
    USB_DESCRIPTOR_TYPE_STRING,
    'H', 0x00U,
    'I', 0x00U,
    'D', 0x00U,
    ' ', 0x00U,
    'K', 0x00U,
    'E', 0x00U,
    'Y', 0x00U,
    'B', 0x00U,
    'O', 0x00U,
    'A', 0x00U,
    'R', 0x00U,
    'D', 0x00U,
    ' ', 0x00U,
    'D', 0x00U,
    'E', 0x00U,
    'V', 0x00U,
    'I', 0x00U,
    'C', 0x00U,
    'E', 0x00U,
};