/******************************************************************************
 * @file     descriptors.c
 * @version  V3.00
 * @brief    USBD descriptor.
 *
 * @copyright SPDX-License-Identifier: Apache-2.0
 * @copyright Copyright (C) 2021 Nuvoton Technology Corp. All rights reserved.
 ******************************************************************************/
/*!<Includes */
#include "NuMicro.h"
#include "vcom_and_hid_keyboard.h"

/*!<USB HID Report Descriptor */
static uint8_t s_au8HIDKeyboardReportDescriptor[] =
{
    0x05, 0x01,         /* Usage Page(Generic Desktop Controls) */
    0x09, 0x06,         /* Usage(Keyboard) */
    0xA1, 0x01,         /* Collection(Application) */
    0x05, 0x07,         /* Usage Page(Keyboard/Keypad) */
    0x19, 0xE0,         /* Usage Minimum(0xE0) */
    0x29, 0xE7,         /* Usage Maximum(0xE7) */
    0x15, 0x00,         /* Logical Minimum(0x0) */
    0x25, 0x01,         /* Logical Maximum(0x1) */
    0x75, 0x01,         /* Report Size(0x1) */
    0x95, 0x08,         /* Report Count(0x8) */
    0x81, 0x02,         /* Input (Data) => Modifier byte */
    0x95, 0x01,         /* Report Count(0x1) */
    0x75, 0x08,         /* Report Size(0x8) */
    0x81, 0x01,         /* Input (Constant) => Reserved byte */
    0x95, 0x05,         /* Report Count(0x5) */
    0x75, 0x01,         /* Report Size(0x1) */
    0x05, 0x08,         /* Usage Page(LEDs) */
    0x19, 0x01,         /* Usage Minimum(0x1) */
    0x29, 0x05,         /* Usage Maximum(0x5) */
    0x91, 0x02,         /* Output (Data) => LED report */
    0x95, 0x01,         /* Report Count(0x1) */
    0x75, 0x03,         /* Report Size(0x3) */
    0x91, 0x01,         /* Output (Constant) => LED report padding */
    0x95, 0x06,         /* Report Count(0x6) */
    0x75, 0x08,         /* Report Size(0x8) */
    0x15, 0x00,         /* Logical Minimum(0x0) */
    0x25, 0x65,         /* Logical Maximum(0x65) */
    0x05, 0x07,         /* Usage Page(Keyboard/Keypad) */
    0x19, 0x00,         /* Usage Minimum(0x0) */
    0x29, 0x65,         /* Usage Maximum(0x65) */
    0x81, 0x00,         /* Input (Data) */
    0xC0,               /* End Collection */
};

/*----------------------------------------------------------------------------*/
/*!<USB Device Descriptor */
static uint8_t s_au8DeviceDescriptor[] =
{
    LEN_DEVICE,             /* bLength */
    DESC_DEVICE,            /* bDescriptorType */
    0x10, 0x01,             /* bcdUSB */
    0xEF,                   /* bDeviceClass: IAD */
    0x02,                   /* bDeviceSubClass */
    0x01,                   /* bDeviceProtocol */
    EP0_MAX_PKT_SIZE,       /* bMaxPacketSize0 */
    /* idVendor */
    USBD_VID & 0x00FF,
    (USBD_VID & 0xFF00) >> 8,
    /* idProduct */
    USBD_PID & 0x00FF,
    (USBD_PID & 0xFF00) >> 8,
    0x00, 0x00,             /* bcdDevice */
    0x01,                   /* iManufacture */
    0x02,                   /* iProduct */
    0x00,                   /* iSerialNumber */
    0x01                    /* bNumConfigurations */
};

/*!<USB Configure Descriptor */
static uint8_t s_au8ConfigDescriptor[] =
{
    LEN_CONFIG,         /* bLength              */
    DESC_CONFIG,        /* bDescriptorType      */
    0x64, 0x00,         /* wTotalLength         */
    0x03,               /* bNumInterfaces       */
    0x01,               /* bConfigurationValue  */
    0x00,               /* iConfiguration       */
    0xC0,               /* bmAttributes         */
    0x32,               /* MaxPower             */

    // IAD
    0x08,               // bLength: Interface Descriptor size
    0x0B,               // bDescriptorType: IAD
    0x00,               // bFirstInterface
    0x02,               // bInterfaceCount
    0x02,               // bFunctionClass: CDC
    0x02,               // bFunctionSubClass
    0x01,               // bFunctionProtocol
    0x02,               // iFunction

    /* VCOM */
    /* INTERFACE descriptor */
    LEN_INTERFACE,  /* bLength              */
    DESC_INTERFACE, /* bDescriptorType      */
    0x00,           /* bInterfaceNumber     */
    0x00,           /* bAlternateSetting    */
    0x01,           /* bNumEndpoints        */
    0x02,           /* bInterfaceClass      */
    0x02,           /* bInterfaceSubClass   */
    0x01,           /* bInterfaceProtocol   */
    0x00,           /* iInterface           */

    /* Communication Class Specified INTERFACE descriptor */
    0x05,           /* Size of the descriptor, in bytes */
    0x24,           /* CS_INTERFACE descriptor type */
    0x00,           /* Header functional descriptor subtype */
    0x10, 0x01,     /* Communication device compliant to the communication spec. ver. 1.10 */

    /* Communication Class Specified INTERFACE descriptor */
    0x05,           /* Size of the descriptor, in bytes */
    0x24,           /* CS_INTERFACE descriptor type */
    0x01,           /* Call management functional descriptor */
    0x00,           /* BIT0: Whether device handle call management itself. */
    /* BIT1: Whether device can send/receive call management information over a Data Class Interface 0 */
    0x01,           /* Interface number of data class interface optionally used for call management */

    /* Communication Class Specified INTERFACE descriptor */
    0x04,           /* Size of the descriptor, in bytes */
    0x24,           /* CS_INTERFACE descriptor type */
    0x02,           /* Abstract control management functional descriptor subtype */
    0x00,           /* bmCapabilities       */

    /* Communication Class Specified INTERFACE descriptor */
    0x05,           /* bLength              */
    0x24,           /* bDescriptorType: CS_INTERFACE descriptor type */
    0x06,           /* bDescriptorSubType   */
    0x00,           /* bMasterInterface     */
    0x01,           /* bSlaveInterface0     */

    /* ENDPOINT descriptor */
    LEN_ENDPOINT,                   /* bLength          */
    DESC_ENDPOINT,                  /* bDescriptorType  */
    (EP_INPUT | INT_IN_EP_NUM),     /* bEndpointAddress */
    EP_INT,                         /* bmAttributes     */
    EP4_MAX_PKT_SIZE, 0x00,         /* wMaxPacketSize   */
    0x01,                           /* bInterval        */

    /* INTERFACE descriptor */
    LEN_INTERFACE,                  /* bLength              */
    DESC_INTERFACE,                 /* bDescriptorType      */
    0x01,                           /* bInterfaceNumber     */
    0x00,                           /* bAlternateSetting    */
    0x02,                           /* bNumEndpoints        */
    0x0A,                           /* bInterfaceClass      */
    0x00,                           /* bInterfaceSubClass   */
    0x00,                           /* bInterfaceProtocol   */
    0x00,                           /* iInterface           */

    /* ENDPOINT descriptor */
    LEN_ENDPOINT,                   /* bLength          */
    DESC_ENDPOINT,                  /* bDescriptorType  */
    (EP_INPUT | BULK_IN_EP_NUM),    /* bEndpointAddress */
    EP_BULK,                        /* bmAttributes     */
    EP2_MAX_PKT_SIZE, 0x00,         /* wMaxPacketSize   */
    0x00,                           /* bInterval        */

    /* ENDPOINT descriptor */
    LEN_ENDPOINT,                   /* bLength          */
    DESC_ENDPOINT,                  /* bDescriptorType  */
    (EP_OUTPUT | BULK_OUT_EP_NUM),  /* bEndpointAddress */
    EP_BULK,                        /* bmAttributes     */
    EP3_MAX_PKT_SIZE, 0x00,         /* wMaxPacketSize   */
    0x00,                           /* bInterval        */

    /* HID class device */
    /* I/F descr: HID keyboard*/
    LEN_INTERFACE,  /* bLength */
    DESC_INTERFACE, /* bDescriptorType */
    0x02,           /* bInterfaceNumber */
    0x00,           /* bAlternateSetting */
    0x01,           /* bNumEndpoints */
    0x03,           /* bInterfaceClass */

    // Note: set report protocol(0),Set_Protocol / Get_protocol request is options. CV3.0 Test pass
    0x00,           /* bInterfaceSubClass */
    HID_KEYBOARD,   /* bInterfaceProtocol */
    0x00,           /* iInterface */

    /* HID Descriptor */
    LEN_HID,        /* Size of this descriptor in UINT8s. */
    DESC_HID,       /* HID descriptor type. */
    0x10, 0x01,     /* HID Class Spec. release number. */
    0x00,           /* H/W target country. */
    0x01,           /* Number of HID class descriptors to follow. */
    DESC_HID_RPT,   /* Descriptor type. */
    /* Total length of report descriptor. */
    sizeof(s_au8HIDKeyboardReportDescriptor) & 0x00FF,
    (sizeof(s_au8HIDKeyboardReportDescriptor) & 0xFF00) >> 8,

    /* EP Descriptor: interrupt in. */
    LEN_ENDPOINT,   /* bLength */
    DESC_ENDPOINT,  /* bDescriptorType */
    (INT_IN_EP_NUM_1 | EP_INPUT), /* bEndpointAddress */
    EP_INT,         /* bmAttributes */
    /* wMaxPacketSize */
    EP5_MAX_PKT_SIZE & 0x00FF,
    (EP5_MAX_PKT_SIZE & 0xFF00) >> 8,
    HID_DEFAULT_INT_IN_INTERVAL     /* bInterval */
};

/*!<USB Language String Descriptor */
static uint8_t s_au8StringLang[4] =
{
    4,              /* bLength */
    DESC_STRING,    /* bDescriptorType */
    0x09, 0x04
};

/*!<USB Vendor String Descriptor */
static uint8_t s_au8VendorStringDesc[] =
{
    16,
    DESC_STRING,
    'N', 0, 'u', 0, 'v', 0, 'o', 0, 't', 0, 'o', 0, 'n', 0
};

/*!<USB Product String Descriptor */
static uint8_t s_au8ProductStringDesc[] =
{
    22,             /* bLength          */
    DESC_STRING,    /* bDescriptorType  */
    'U', 0, 'S', 0, 'B', 0, ' ', 0, 'D', 0, 'e', 0, 'v', 0, 'i', 0, 'c', 0, 'e', 0
};

static uint8_t *s_pau8UsbString[4] =
{
    s_au8StringLang,
    s_au8VendorStringDesc,
    s_au8ProductStringDesc,
    NULL
};

static uint8_t *s_apu8UsbHidReport[3] =
{
    NULL,
    NULL,
    s_au8HIDKeyboardReportDescriptor
};

static uint32_t s_au32UsbHidReportLen[3] =
{
    0,
    0,
    sizeof(s_au8HIDKeyboardReportDescriptor)
};

static uint32_t s_au32ConfigHidDescIdx[3] =
{
    0,
    0,
    (sizeof(s_au8ConfigDescriptor) - LEN_HID - LEN_ENDPOINT)
};

const S_USBD_INFO_T gsInfo =
{
    (uint8_t *)s_au8DeviceDescriptor,
    (uint8_t *)s_au8ConfigDescriptor,
    (uint8_t **)s_pau8UsbString,
    (uint8_t **)s_apu8UsbHidReport,
    NULL,
    (uint32_t *)s_au32UsbHidReportLen,
    (uint32_t *)s_au32ConfigHidDescIdx
};
