#include "project.h"

static const uint8_t mouse_report_descriptor[] = {
  0x05, 0x01,                   /* USAGE_PAGE (Generic Desktop)         */
  0x09, 0x02,                   /* USAGE (Mouse)                        */
  0xa1, 0x01,                   /* COLLECTION (Application)             */
  0x09, 0x01,                   /*   USAGE (Pointer)                    */
  0xa1, 0x00,                   /*   COLLECTION (Physical)              */
  0x05, 0x09,                   /*     USAGE_PAGE (Button)              */
  0x19, 0x01,                   /*     USAGE_MINIMUM (Button 1)         */
  0x29, 0x03,                   /*     USAGE_MAXIMUM (Button 3)         */
  0x15, 0x00,                   /*     LOGICAL_MINIMUM (0)              */
  0x25, 0x01,                   /*     LOGICAL_MAXIMUM (1)              */
  0x95, 0x03,                   /*     REPORT_COUNT (3)                 */
  0x75, 0x01,                   /*     REPORT_SIZE (1)                  */
  0x81, 0x02,                   /*     INPUT (Data,Var,Abs)             */
  0x95, 0x01,                   /*     REPORT_COUNT (1)                 */
  0x75, 0x05,                   /*     REPORT_SIZE (5)                  */
  0x81, 0x01,                   /*     INPUT (Cnst,Ary,Abs)             */
  0x05, 0x01,                   /*     USAGE_PAGE (Generic Desktop)     */
  0x09, 0x30,                   /*     USAGE (X)                        */
  0x09, 0x31,                   /*     USAGE (Y)                        */
  0x09, 0x38,                   /*     USAGE (Wheel)                    */
  0x15, 0x81,                   /*     LOGICAL_MINIMUM (-127)           */
  0x25, 0x7f,                   /*     LOGICAL_MAXIMUM (127)            */
  0x75, 0x08,                   /*     REPORT_SIZE (8)                  */
  0x95, 0x03,                   /*     REPORT_COUNT (3)                 */
  0x81, 0x06,                   /*     INPUT (Data,Var,Rel)             */
  0xc0,                         /*   END_COLLECTION                     */
  0x09, 0x3c,                   /*   USAGE (Motion Wakeup)              */
  0x05, 0xff,                   /*   USAGE_PAGE (Vendor Defined Page 1) */
  0x09, 0x01,                   /*   USAGE (Vendor Usage 1)             */
  0x15, 0x00,                   /*   LOGICAL_MINIMUM (0)                */
  0x25, 0x01,                   /*   LOGICAL_MAXIMUM (1)                */
  0x75, 0x01,                   /*   REPORT_SIZE (1)                    */
  0x95, 0x02,                   /*   REPORT_COUNT (2)                   */
  0xb1, 0x22,                   /*   FEATURE (Data,Var,Abs,NPrf)        */
  0x75, 0x06,                   /*   REPORT_SIZE (6)                    */
  0x95, 0x01,                   /*   REPORT_COUNT (1)                   */
  0xb1, 0x01,                   /*   FEATURE (Cnst,Ary,Abs)             */
  0x05, 0x01,                   /*   USAGE_PAGE (Generic Desktop)      */
  0x09, 0x80,                   /*   USAGE (System Control)            */
  0xA1, 0x01,                   /*   COLLECTION (Application)          */
  0x75, 0x02,                   /*   REPORT_SIZE (2)                   */
  0x95, 0x01,                   /*   REPORT_COUNT (1)                  */
  0x15, 0x01,                   /*   LOGICAL_MIN (1)                   */
  0x25, 0x03,                   /*   LOGICAL_MAX (3)                   */
  0x09, 0x82,                   /*   USAGE (System Sleep)              */
  0x09, 0x81,                   /*   USAGE (System Power Down)         */
  0x09, 0x83,                   /*   USAGE (System Wake Up)            */
  0x81, 0x60,                   /*   INPUT (Data Ary Abs NPrf Null)    */
  0x75, 0x06,                   /*   REPORT_SIZE (6)                   */
  0x81, 0x03,                   /*   INPUT (Cnst Var Abs)              */
  0xc0,                         /*   END COLLECTION                    */
  0xc0                          /* END_COLLECTION                       */
};

static const struct
{
  struct usb_hid_descriptor hid_descriptor;
  struct
  {
    uint8_t bReportDescriptorType;
    uint16_t wDescriptorLength;
  } __attribute__ ((packed)) hid_report;
} __attribute__ ((packed)) mouse_function =
{
  .hid_descriptor =
  {
  .bLength = sizeof (mouse_function),.bDescriptorType = USB_DT_HID,.bcdHID =
      0x0100,.bCountryCode = 0,.bNumDescriptors = 1,}
  ,.hid_report =
  {
  .bReportDescriptorType = USB_DT_REPORT,.wDescriptorLength =
      sizeof (mouse_report_descriptor),}
,};

const struct usb_endpoint_descriptor mouse_endpoint = {
  .bLength = USB_DT_ENDPOINT_SIZE,
  .bDescriptorType = USB_DT_ENDPOINT,
  .bEndpointAddress = 0x84,
  .bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
  .wMaxPacketSize = 5,
  .bInterval = 0x1,             //0x20,
};

const struct usb_interface_descriptor mouse_iface = {
  .bLength = USB_DT_INTERFACE_SIZE,
  .bDescriptorType = USB_DT_INTERFACE,
  .bInterfaceNumber = 3,
  .bAlternateSetting = 0,
  .bNumEndpoints = 1,
  .bInterfaceClass = USB_CLASS_HID,
  .bInterfaceSubClass = 1,      /* boot */
  .bInterfaceProtocol = 2,      /* mouse */
  .iInterface = 8,

  .endpoint = &mouse_endpoint,

  .extra = &mouse_function,
  .extralen = sizeof (mouse_function),
};


void
mouse_get_descriptor (uint8_t ** buf, uint16_t * len)
{

  /* Handle the HID report descriptor. */
  *buf = (uint8_t *) mouse_report_descriptor;
  *len = sizeof (mouse_report_descriptor);
}

void
mouse_test (void)
{
  static int c = 1;
  uint8_t buf[5] = { 0, 0, 0, 0 };

  buf[0] = c & 7;

  buf[1] = c & 8 ? -1 : 1;
  buf[2] = c & 16 ? -1 : 1;
  buf[3] = c & 32 ? -1 : 1;

  c++;

  usbd_ep_write_packet (usbd_dev, 0x84, buf, 5);
}