/*
 * Copyright (c) 2024, sakumisu
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#include "usbd_core.h"
#include "usbd_hid.h"

#define USBD_VID           0xffff
#define USBD_PID           0xffff
#define USBD_MAX_POWER     100
#define USBD_LANGID_STRING 1033

#define HID_INT_EP          0x81
#define HID_INT_EP_SIZE     8
#define HID_INT_EP_INTERVAL 10

#define USB_HID_CONFIG_DESC_SIZ       (34 + 9)
#define HID_KEYBOARD_REPORT_DESC_SIZE 63

#define USBD_WEBUSB_VENDOR_CODE  (0x22)
#define USBD_WINUSB_VENDOR_CODE  (0x21)

#define USBD_WINUSB_DESC_SET_LEN (0xB2)
#define URL_DESCRIPTOR_LENGTH    (3 + 36)

#define USBD_WEBUSB_INTF_NUM     0x01

#define WEBUSB_URL_STRINGS                                 \
    'g', 'i', 't', 'h', 'u', 'b', '.', 'c', 'o', 'm', '/', \
        'c', 'h', 'e', 'r', 'r', 'y', '-', 'e', 'm', 'b', 'e', 'd', 'd', 'e', 'd', '/', 'C', 'h', 'e', 'r', 'r', 'y', 'U', 'S', 'B',

const uint8_t USBD_WinUSBDescriptorSetDescriptor[USBD_WINUSB_DESC_SET_LEN] = {
    // Microsoft OS 2.0 描述符集标头
    0x0A, 0x00,                     // Descriptor size (10 bytes)
    0x00, 0x00,                     // MS OS 2.0 descriptor set header
    0x00, 0x00, 0x03, 0x06,         // Windows version (8.1) (0x06030000)
    USBD_WINUSB_DESC_SET_LEN, 0x00, // Size, MS OS 2.0 descriptor set

    // Microsoft OS 2.0 配置子集标头
    0x08, 0x00, // wLength
    0x01, 0x00, // wDescriptorType
    0x00,       // 适用于配置 1
    0x00,       // bReserved
    0XA8, 0X00, // Size, MS OS 2.0 configuration subset

    // Microsoft OS 2.0 功能子集头
    0x08, 0x00,           // Descriptor size (8 bytes)
    0x02, 0x00,           // MS OS 2.0 function subset header
    USBD_WEBUSB_INTF_NUM, // bFirstInterface
    0x00,                 // 必须设置为 0
    0xA0, 0x00,

    // Microsoft OS 2.0 兼容 ID 描述符
    // 兼容 ID 描述符告诉 Windows 此设备与 WinUSB 驱动程序兼容
    0x14, 0x00, // wLength  20
    0x03, 0x00, // MS_OS_20_FEATURE_COMPATIBLE_ID
    'W', 'I', 'N', 'U', 'S', 'B', 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

    // Microsoft OS 2.0 注册表属性描述符
    // 注册表属性分配设备接口 GUID
    0x84, 0x00, //wLength: 132
    0x04, 0x00, // wDescriptorType: MS_OS_20_FEATURE_REG_PROPERTY: 0x04 (Table 9)
    0x07, 0x00, //wPropertyDataType: REG_MULTI_SZ (Table 15)
    0x2a, 0x00, //wPropertyNameLength:
    //bPropertyName: “DeviceInterfaceGUID”
    'D', 0x00, 'e', 0x00, 'v', 0x00, 'i', 0x00, 'c', 0x00, 'e', 0x00, 'I', 0x00, 'n', 0x00, 't', 0x00, 'e', 0x00,
    'r', 0x00, 'f', 0x00, 'a', 0x00, 'c', 0x00, 'e', 0x00, 'G', 0x00, 'U', 0x00, 'I', 0x00, 'D', 0x00, 's', 0x00,
    0x00, 0x00,
    0x50, 0x00, // wPropertyDataLength
    //bPropertyData: “{975F44D9-0D08-43FD-8B3E-127CA8AFFF9D}”.
    '{', 0x00, '9', 0x00, 'd', 0x00, '7', 0x00, 'd', 0x00, 'e', 0x00, 'b', 0x00, 'b', 0x00, 'c', 0x00, '-', 0x00,
    'c', 0x00, '8', 0x00, '5', 0x00, 'd', 0x00, '-', 0x00, '1', 0x00, '1', 0x00, 'd', 0x00, '1', 0x00, '-', 0x00,
    '9', 0x00, 'e', 0x00, 'b', 0x00, '4', 0x00, '-', 0x00, '0', 0x00, '0', 0x00, '6', 0x00, '0', 0x00, '0', 0x00,
    '8', 0x00, 'c', 0x00, '3', 0x00, 'a', 0x00, '1', 0x00, '9', 0x00, 'a', 0x00, '}', 0x00, 0x00, 0x00, 0x00, 0x00
};

const uint8_t USBD_WebUSBURLDescriptor[URL_DESCRIPTOR_LENGTH] = {
    URL_DESCRIPTOR_LENGTH,
    WEBUSB_URL_TYPE,
    WEBUSB_URL_SCHEME_HTTPS,
    WEBUSB_URL_STRINGS
};

#define USBD_BOS_WTOTALLENGTH 0x39

#define LANDING_PAGE          0x01
uint8_t USBD_BinaryObjectStoreDescriptor[USBD_BOS_WTOTALLENGTH] = {
    // BOS描述符
    0x05,                        // bLength          固长为5
    0x0F,                        // bDescriptorType  固定为15
    USBD_BOS_WTOTALLENGTH, 0x00, // wTotalLength     BOS描述符的总大小
    0x02,                        // bNumDeviceCaps   BOS描述符中独立设备功能特性描述符的数量

    // WebUSB 平台功能描述符
    0x18, // Descriptor size (24 bytes)
    0x10, // Descriptor type (Device Capability) 设备功能描述符
    0x05, // Capability type (Platform) 平台描述符
    0x00, // Reserved

    // WebUSB Platform Capability ID (3408b638-09a9-47a0-8bfd-a0768815b665)
    // 平台功能 UUID 将此标识为WebUSB 平台功能描述符，它提供有关设备的基本信息
    0x38, 0xB6, 0x08, 0x34,
    0xA9, 0x09,
    0xA0, 0x47,
    0x8B, 0xFD,
    0xA0, 0x76, 0x88, 0x15, 0xB6, 0x65,

    0x00, 0x01,              // WebUSB version 1.0
    USBD_WEBUSB_VENDOR_CODE, // Vendor-assigned WebUSB request code
    LANDING_PAGE,            // Landing page

    // Microsoft 平台功能描述符
    // 标头
    0x1C, // Descriptor size (28 bytes)
    0x10, // Descriptor type (Device Capability)
    0x05, // Capability type (Platform)
    0x00, // Reserved

    0xDF, 0x60, 0xDD, 0xD8, /* PlatformCapabilityUUID */
    0x89, 0x45, 0xC7, 0x4C,
    0x9C, 0xD2, 0x65, 0x9D,
    0x9E, 0x64, 0x8A, 0x9F,

    // 描述符集信息结构
    0x00, 0x00, 0x03, 0x06, /* >= Win 8.1 * dwWindowsVersion    最低兼容 Windows 版本 */

    USBD_WINUSB_DESC_SET_LEN, 0X00, /* wDescriptorSetTotalLength */

    USBD_WINUSB_VENDOR_CODE, /* bVendorCode */
    0X00                     /* bAltEnumCode */
};

struct usb_webusb_descriptor webusb_url_desc = {
    .vendor_code = USBD_WEBUSB_VENDOR_CODE,
    .string = USBD_WebUSBURLDescriptor,
    .string_len = URL_DESCRIPTOR_LENGTH
};

struct usb_msosv2_descriptor msosv2_desc = {
    .vendor_code = USBD_WINUSB_VENDOR_CODE,
    .compat_id = USBD_WinUSBDescriptorSetDescriptor,
    .compat_id_len = USBD_WINUSB_DESC_SET_LEN,
};

struct usb_bos_descriptor bos_desc = {
    .string = USBD_BinaryObjectStoreDescriptor,
    .string_len = USBD_BOS_WTOTALLENGTH
};

#ifdef CONFIG_USBDEV_ADVANCE_DESC
static const uint8_t device_descriptor[] = {
    USB_DEVICE_DESCRIPTOR_INIT(USB_2_1, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01)
};

static const uint8_t config_descriptor[] = {
    USB_CONFIG_DESCRIPTOR_INIT(USB_HID_CONFIG_DESC_SIZ, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),

    /************** Descriptor of Joystick Mouse interface ****************/
    /* 09 */
    0x09,                          /* bLength: Interface Descriptor size */
    USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType: Interface descriptor type */
    0x00,                          /* bInterfaceNumber: Number of Interface */
    0x00,                          /* bAlternateSetting: Alternate setting */
    0x01,                          /* bNumEndpoints */
    0x03,                          /* bInterfaceClass: HID */
    0x01,                          /* bInterfaceSubClass : 1=BOOT, 0=no boot */
    0x01,                          /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
    0,                             /* iInterface: Index of string descriptor */
    /******************** Descriptor of Joystick Mouse HID ********************/
    /* 18 */
    0x09,                    /* bLength: HID Descriptor size */
    HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
    0x11,                    /* bcdHID: HID Class Spec release number */
    0x01,
    0x00,                          /* bCountryCode: Hardware target country */
    0x01,                          /* bNumDescriptors: Number of HID class descriptors to follow */
    0x22,                          /* bDescriptorType */
    HID_KEYBOARD_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
    0x00,
    /******************** Descriptor of Mouse endpoint ********************/
    /* 27 */
    0x07,                         /* bLength: Endpoint Descriptor size */
    USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */
    HID_INT_EP,                   /* bEndpointAddress: Endpoint Address (IN) */
    0x03,                         /* bmAttributes: Interrupt endpoint */
    HID_INT_EP_SIZE,              /* wMaxPacketSize: 4 Byte max */
    0x00,
    HID_INT_EP_INTERVAL, /* bInterval: Polling Interval */
    /* 34 */
    USB_INTERFACE_DESCRIPTOR_INIT(USBD_WEBUSB_INTF_NUM, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00)
};

static const uint8_t device_quality_descriptor[] = {
    ///////////////////////////////////////
    /// device qualifier descriptor
    ///////////////////////////////////////
    0x0a,
    USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
    0x00,
    0x02,
    0x00,
    0x00,
    0x00,
    0x40,
    0x00,
    0x00,
};

static const char *string_descriptors[] = {
    (const char[]){ 0x09, 0x04 }, /* Langid */
    "CherryUSB",                  /* Manufacturer */
    "CherryUSB WEBUSB HID DEMO",  /* Product */
    "2022123456",                 /* Serial Number */
};

static const uint8_t *device_descriptor_callback(uint8_t speed)
{
    return device_descriptor;
}

static const uint8_t *config_descriptor_callback(uint8_t speed)
{
    return config_descriptor;
}

static const uint8_t *device_quality_descriptor_callback(uint8_t speed)
{
    return device_quality_descriptor;
}

static const char *string_descriptor_callback(uint8_t speed, uint8_t index)
{
    if (index > 3) {
        return NULL;
    }
    return string_descriptors[index];
}

const struct usb_descriptor webusb_hid_descriptor = {
    .device_descriptor_callback = device_descriptor_callback,
    .config_descriptor_callback = config_descriptor_callback,
    .device_quality_descriptor_callback = device_quality_descriptor_callback,
    .string_descriptor_callback = string_descriptor_callback,
    .msosv2_descriptor = &msosv2_desc,
    .webusb_url_descriptor = &webusb_url_desc,
    .bos_descriptor = &bos_desc
};
#else
static const uint8_t webusb_hid_descriptor[] = {
    USB_DEVICE_DESCRIPTOR_INIT(USB_2_1, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01),
    USB_CONFIG_DESCRIPTOR_INIT(USB_HID_CONFIG_DESC_SIZ, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),

    /************** Descriptor of Joystick Mouse interface ****************/
    /* 09 */
    0x09,                          /* bLength: Interface Descriptor size */
    USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType: Interface descriptor type */
    0x00,                          /* bInterfaceNumber: Number of Interface */
    0x00,                          /* bAlternateSetting: Alternate setting */
    0x01,                          /* bNumEndpoints */
    0x03,                          /* bInterfaceClass: HID */
    0x01,                          /* bInterfaceSubClass : 1=BOOT, 0=no boot */
    0x01,                          /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
    0,                             /* iInterface: Index of string descriptor */
    /******************** Descriptor of Joystick Mouse HID ********************/
    /* 18 */
    0x09,                    /* bLength: HID Descriptor size */
    HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
    0x11,                    /* bcdHID: HID Class Spec release number */
    0x01,
    0x00,                          /* bCountryCode: Hardware target country */
    0x01,                          /* bNumDescriptors: Number of HID class descriptors to follow */
    0x22,                          /* bDescriptorType */
    HID_KEYBOARD_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
    0x00,
    /******************** Descriptor of Mouse endpoint ********************/
    /* 27 */
    0x07,                         /* bLength: Endpoint Descriptor size */
    USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */
    HID_INT_EP,                   /* bEndpointAddress: Endpoint Address (IN) */
    0x03,                         /* bmAttributes: Interrupt endpoint */
    HID_INT_EP_SIZE,              /* wMaxPacketSize: 4 Byte max */
    0x00,
    HID_INT_EP_INTERVAL, /* bInterval: Polling Interval */
    /* 34 */
    USB_INTERFACE_DESCRIPTOR_INIT(USBD_WEBUSB_INTF_NUM, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00),
    ///////////////////////////////////////
    /// string0 descriptor
    ///////////////////////////////////////
    USB_LANGID_INIT(USBD_LANGID_STRING),
    ///////////////////////////////////////
    /// string1 descriptor
    ///////////////////////////////////////
    0x14,                       /* bLength */
    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
    'C', 0x00,                  /* wcChar0 */
    'h', 0x00,                  /* wcChar1 */
    'e', 0x00,                  /* wcChar2 */
    'r', 0x00,                  /* wcChar3 */
    'r', 0x00,                  /* wcChar4 */
    'y', 0x00,                  /* wcChar5 */
    'U', 0x00,                  /* wcChar6 */
    'S', 0x00,                  /* wcChar7 */
    'B', 0x00,                  /* wcChar8 */
    ///////////////////////////////////////
    /// string2 descriptor
    ///////////////////////////////////////
    0x2C,                       /* bLength */
    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
    'C', 0x00,                  /* wcChar0 */
    'h', 0x00,                  /* wcChar1 */
    'e', 0x00,                  /* wcChar2 */
    'r', 0x00,                  /* wcChar3 */
    'r', 0x00,                  /* wcChar4 */
    'y', 0x00,                  /* wcChar5 */
    'U', 0x00,                  /* wcChar6 */
    'S', 0x00,                  /* wcChar7 */
    'B', 0x00,                  /* wcChar8 */
    ' ', 0x00,                  /* wcChar9 */
    'W', 0x00,                  /* wcChar10 */
    'E', 0x00,                  /* wcChar11 */
    'B', 0x00,                  /* wcChar12 */
    'U', 0x00,                  /* wcChar13 */
    'S', 0x00,                  /* wcChar14 */
    'B', 0x00,                  /* wcChar15 */
    ' ', 0x00,                  /* wcChar16 */
    'D', 0x00,                  /* wcChar17 */
    'E', 0x00,                  /* wcChar18 */
    'M', 0x00,                  /* wcChar19 */
    'O', 0x00,                  /* wcChar20 */
    ///////////////////////////////////////
    /// string3 descriptor
    ///////////////////////////////////////
    0x16,                       /* bLength */
    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
    '2', 0x00,                  /* wcChar0 */
    '0', 0x00,                  /* wcChar1 */
    '2', 0x00,                  /* wcChar2 */
    '2', 0x00,                  /* wcChar3 */
    '1', 0x00,                  /* wcChar4 */
    '2', 0x00,                  /* wcChar5 */
    '3', 0x00,                  /* wcChar6 */
    '4', 0x00,                  /* wcChar7 */
    '5', 0x00,                  /* wcChar8 */
    '6', 0x00,                  /* wcChar9 */
#ifdef CONFIG_USB_HS
    ///////////////////////////////////////
    /// device qualifier descriptor
    ///////////////////////////////////////
    0x0a,
    USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
    0x00,
    0x02,
    0x00,
    0x00,
    0x00,
    0x40,
    0x00,
    0x00,
#endif
    0x00
};
#endif

/* USB HID device Configuration Descriptor */
static uint8_t hid_desc[9] __ALIGN_END = {
    /* 18 */
    0x09,                    /* bLength: HID Descriptor size */
    HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
    0x11,                    /* bcdHID: HID Class Spec release number */
    0x01,
    0x00,                          /* bCountryCode: Hardware target country */
    0x01,                          /* bNumDescriptors: Number of HID class descriptors to follow */
    0x22,                          /* bDescriptorType */
    HID_KEYBOARD_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
    0x00,
};

static const uint8_t hid_keyboard_report_desc[HID_KEYBOARD_REPORT_DESC_SIZE] = {
    0x05, 0x01, // USAGE_PAGE (Generic Desktop)
    0x09, 0x06, // USAGE (Keyboard)
    0xa1, 0x01, // COLLECTION (Application)
    0x05, 0x07, // USAGE_PAGE (Keyboard)
    0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)
    0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)
    0x15, 0x00, // LOGICAL_MINIMUM (0)
    0x25, 0x01, // LOGICAL_MAXIMUM (1)
    0x75, 0x01, // REPORT_SIZE (1)
    0x95, 0x08, // REPORT_COUNT (8)
    0x81, 0x02, // INPUT (Data,Var,Abs)
    0x95, 0x01, // REPORT_COUNT (1)
    0x75, 0x08, // REPORT_SIZE (8)
    0x81, 0x03, // INPUT (Cnst,Var,Abs)
    0x95, 0x05, // REPORT_COUNT (5)
    0x75, 0x01, // REPORT_SIZE (1)
    0x05, 0x08, // USAGE_PAGE (LEDs)
    0x19, 0x01, // USAGE_MINIMUM (Num Lock)
    0x29, 0x05, // USAGE_MAXIMUM (Kana)
    0x91, 0x02, // OUTPUT (Data,Var,Abs)
    0x95, 0x01, // REPORT_COUNT (1)
    0x75, 0x03, // REPORT_SIZE (3)
    0x91, 0x03, // OUTPUT (Cnst,Var,Abs)
    0x95, 0x06, // REPORT_COUNT (6)
    0x75, 0x08, // REPORT_SIZE (8)
    0x15, 0x00, // LOGICAL_MINIMUM (0)
    0x25, 0xFF, // LOGICAL_MAXIMUM (255)
    0x05, 0x07, // USAGE_PAGE (Keyboard)
    0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
    0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
    0x81, 0x00, // INPUT (Data,Ary,Abs)
    0xc0        // END_COLLECTION
};

#define HID_STATE_IDLE 0
#define HID_STATE_BUSY 1

/*!< hid state ! Data can be sent only when state is idle  */
static volatile uint8_t hid_state = HID_STATE_IDLE;

static void usbd_event_handler(uint8_t busid, uint8_t event)
{
    switch (event) {
        case USBD_EVENT_RESET:
            break;
        case USBD_EVENT_CONNECTED:
            break;
        case USBD_EVENT_DISCONNECTED:
            break;
        case USBD_EVENT_RESUME:
            break;
        case USBD_EVENT_SUSPEND:
            break;
        case USBD_EVENT_CONFIGURED:
            hid_state = HID_STATE_IDLE;
            break;
        case USBD_EVENT_SET_REMOTE_WAKEUP:
            break;
        case USBD_EVENT_CLR_REMOTE_WAKEUP:
            break;

        default:
            break;
    }
}

void usbd_hid_int_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
    hid_state = HID_STATE_IDLE;
}

static struct usbd_endpoint hid_in_ep = {
    .ep_cb = usbd_hid_int_callback,
    .ep_addr = HID_INT_EP
};

static struct usbd_interface intf0;

void webusb_hid_keyboard_init(uint8_t busid, uintptr_t reg_base)
{
#ifdef CONFIG_USBDEV_ADVANCE_DESC
    usbd_desc_register(busid, &webusb_hid_descriptor);
#else
    usbd_desc_register(busid, webusb_hid_descriptor);
#endif
#ifndef CONFIG_USBDEV_ADVANCE_DESC
    usbd_bos_desc_register(busid, &bos_desc);
    usbd_msosv2_desc_register(busid, &msosv2_desc);
    usbd_webusb_desc_register(busid, &webusb_url_desc);
#endif
    usbd_add_interface(busid, usbd_hid_init_intf(busid, &intf0, hid_keyboard_report_desc, HID_KEYBOARD_REPORT_DESC_SIZE));
    usbd_add_endpoint(busid, &hid_in_ep);

    usbd_initialize(busid, reg_base, usbd_event_handler);
}

USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer[64];

void hid_keyboard_test(uint8_t busid)
{
    const uint8_t sendbuffer[8] = { 0x00, 0x00, HID_KBD_USAGE_A, 0x00, 0x00, 0x00, 0x00, 0x00 };

    if(usb_device_is_configured(busid) == false) {
        return;
    }

    memcpy(write_buffer, sendbuffer, 8);
    hid_state = HID_STATE_BUSY;
    usbd_ep_start_write(busid, HID_INT_EP, write_buffer, 8);
    while (hid_state == HID_STATE_BUSY) {
    }
}
