tinyusb/src/class/hid/hid_device.c

/**************************************************************************/
/*!
    @file     hid_device.c
    @author   hathach (tinyusb.org)

    @section LICENSE

    Software License Agreement (BSD License)

    Copyright (c) 2013, hathach (tinyusb.org)
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:
    1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
    3. Neither the name of the copyright holders nor the
    names of its contributors may be used to endorse or promote products
    derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    This file is part of the tinyusb stack.
*/
/**************************************************************************/

#include "tusb_option.h"

#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_HID)

#define _TINY_USB_SOURCE_FILE_
//--------------------------------------------------------------------+
// INCLUDE
//--------------------------------------------------------------------+
#include "common/tusb_common.h"
#include "hid_device.h"
#include "device/usbd_pvt.h"

//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF
//--------------------------------------------------------------------+

// Max report len is keyboard's one with 8 byte + 1 byte report id
#define REPORT_BUFSIZE      12


#define ITF_IDX_BOOT_KBD   0
#define ITF_IDX_BOOT_MSE   ( ITF_IDX_BOOT_KBD + (CFG_TUD_HID_KEYBOARD && CFG_TUD_HID_KEYBOARD_BOOT) )
#define ITF_IDX_GENERIC    ( ITF_IDX_BOOT_MSE + (CFG_TUD_HID_MOUSE && CFG_TUD_HID_MOUSE_BOOT) )
#define ITF_COUNT          ( ITF_IDX_GENERIC + 1 )

typedef struct
{
  uint8_t itf_num;
  uint8_t ep_in;

  uint8_t idle_rate; // in unit of 4 ms TODO removed
  bool    boot_protocol;

  uint16_t desc_len;
  uint8_t const * desc_report;

  CFG_TUSB_MEM_ALIGN uint8_t report_buf[REPORT_BUFSIZE];

  // callbacks
  uint16_t (*get_report_cb) (uint8_t report_id, hid_report_type_t type, uint8_t* buffer, uint16_t reqlen);
  void     (*set_report_cb) (uint8_t report_id, hid_report_type_t type, uint8_t const* buffer, uint16_t bufsize);

}hidd_interface_t;

typedef struct
{
  uint8_t usage;     // HID_USAGE_*
  uint8_t idle_rate; // in unit of 4 ms

  uint8_t report_id;
  uint8_t report_len;

  hidd_interface_t* itf;
} hidd_report_t ;

CFG_TUSB_ATTR_USBRAM static hidd_interface_t _hidd_itf[ITF_COUNT];


#if CFG_TUD_HID_KEYBOARD
static hidd_report_t _kbd_rpt;
#endif

#if CFG_TUD_HID_MOUSE
static hidd_report_t _mse_rpt;
#endif

/*------------- Helpers -------------*/

static inline hidd_interface_t* get_interface_by_itfnum(uint8_t itf_num)
{
  for (uint8_t i=0; i < ITF_COUNT; i++ )
  {
    if ( itf_num == _hidd_itf[i].itf_num ) return &_hidd_itf[i];
  }

  return NULL;
}


//--------------------------------------------------------------------+
// HID GENERIC API
//--------------------------------------------------------------------+
bool tud_hid_generic_ready(void)
{
  return (_hidd_itf[ITF_IDX_GENERIC].ep_in != 0) && !dcd_edpt_busy(TUD_OPT_RHPORT, _hidd_itf[ITF_IDX_GENERIC].ep_in);
}

bool tud_hid_generic_report(uint8_t report_id, void const* report, uint8_t len)
{
  TU_VERIFY( tud_hid_generic_ready() && (len < REPORT_BUFSIZE) );

  hidd_interface_t * p_hid = &_hidd_itf[ITF_IDX_GENERIC];

  // If report id = 0, skip ID field
  if (report_id)
  {
    p_hid->report_buf[0] = report_id;
    memcpy(p_hid->report_buf+1, report, len);
  }else
  {
    memcpy(p_hid->report_buf, report, len);
  }

  // TODO idle rate
  return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, len + ( report_id ? 1 : 0) );
}

//--------------------------------------------------------------------+
// KEYBOARD APPLICATION API
//--------------------------------------------------------------------+
#if CFG_TUD_HID_KEYBOARD
bool tud_hid_keyboard_ready(void)
{
  return (_kbd_rpt.itf != NULL) && !dcd_edpt_busy(TUD_OPT_RHPORT, _kbd_rpt.itf->ep_in);
}

bool tud_hid_keyboard_is_boot_protocol(void)
{
  return (_kbd_rpt.itf != NULL) && _kbd_rpt.itf->boot_protocol;
}

static bool hidd_kbd_report(hid_keyboard_report_t const *p_report)
{
  TU_VERIFY( tud_hid_keyboard_ready() );

  hidd_interface_t * p_hid = _kbd_rpt.itf;

  // Idle Rate = 0 : only send report if there is changes, i.e skip duplication
  // Idle Rate > 0 : skip duplication, but send at least 1 report every idle rate (in unit of 4 ms).
  //                 If idle time is less than interrupt polling then use the polling.
  static tu_timeout_t idle_tm = { 0, 0 };

  if ( (_kbd_rpt.idle_rate == 0) || !tu_timeout_expired(&idle_tm) )
  {
    if ( 0 == memcmp(p_hid->report_buf, p_report, sizeof(hid_keyboard_report_t)) ) return true;
  }

  tu_timeout_set(&idle_tm, _kbd_rpt.idle_rate * 4);

  memcpy(p_hid->report_buf, p_report, sizeof(hid_keyboard_report_t));
  return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, sizeof(hid_keyboard_report_t));
}

bool tud_hid_keyboard_keycode(uint8_t modifier, uint8_t keycode[6])
{
  hid_keyboard_report_t report = { .modifier = modifier };

  if ( keycode )
  {
    memcpy(report.keycode, keycode, 6);
  }else
  {
    memclr_(report.keycode, 6);
  }

  return hidd_kbd_report(&report);
}

#if CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP

bool tud_hid_keyboard_key_press(char ch)
{
  uint8_t keycode[6] = { 0 };
  uint8_t modifier   = 0;

  if ( HID_ASCII_TO_KEYCODE[(uint8_t)ch].shift ) modifier = KEYBOARD_MODIFIER_LEFTSHIFT;
  keycode[0] = HID_ASCII_TO_KEYCODE[(uint8_t)ch].keycode;

  return tud_hid_keyboard_keycode(modifier, keycode);
}

bool tud_hid_keyboard_key_sequence(const char* str, uint32_t interval_ms)
{
  // Send each key in string
  char ch;
  while( (ch = *str++) != 0 )
  {
    char lookahead = *str;

    tud_hid_keyboard_key_press(ch);

    // Blocking delay
    tu_timeout_wait(interval_ms);

    /* Only need to empty report if the next character is NULL or the same with
     * the current one, else no need to send */
    if ( lookahead == ch || lookahead == 0 )
    {
      tud_hid_keyboard_key_release();
      tu_timeout_wait(interval_ms);
    }
  }

  return true;
}

#endif // CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP

#endif // CFG_TUD_HID_KEYBOARD

//--------------------------------------------------------------------+
// MOUSE APPLICATION API
//--------------------------------------------------------------------+
#if CFG_TUD_HID_MOUSE

bool tud_hid_mouse_ready(void)
{
  return (_mse_rpt.itf != NULL) && !dcd_edpt_busy(TUD_OPT_RHPORT, _mse_rpt.itf->ep_in);
}

bool tud_hid_mouse_is_boot_protocol(void)
{
  return (_mse_rpt.itf != NULL) && _mse_rpt.itf->boot_protocol;
}

static bool hidd_mouse_report(hid_mouse_report_t const *p_report)
{
  TU_VERIFY( tud_hid_mouse_ready() );

  hidd_interface_t * p_hid = _mse_rpt.itf;
  memcpy(p_hid->report_buf, p_report, sizeof(hid_mouse_report_t));

  return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, sizeof(hid_mouse_report_t));
}

bool tud_hid_mouse_data(uint8_t buttons, int8_t x, int8_t y, int8_t scroll, int8_t pan)
{
  hid_mouse_report_t report =
  {
      .buttons = buttons,
      .x       = x,
      .y       = y,
      .wheel   = scroll,
//      .pan     = pan
  };

  return hidd_mouse_report( &report );
}

bool tud_hid_mouse_move(int8_t x, int8_t y)
{
  TU_VERIFY( tud_hid_mouse_ready() );

  hidd_interface_t * p_hid = _mse_rpt.itf;
  uint8_t prev_buttons = p_hid->report_buf[0];

  return tud_hid_mouse_data(prev_buttons, x, y, 0, 0);
}

bool tud_hid_mouse_scroll(int8_t vertical, int8_t horizontal)
{
  TU_VERIFY( tud_hid_mouse_ready() );

  hidd_interface_t * p_hid =  _mse_rpt.itf;
  uint8_t prev_buttons = p_hid->report_buf[0];

  return tud_hid_mouse_data(prev_buttons, 0, 0, vertical, horizontal);
}

#endif // CFG_TUD_HID_MOUSE

//--------------------------------------------------------------------+
// USBD-CLASS API
//--------------------------------------------------------------------+
void hidd_init(void)
{
  hidd_reset(TUD_OPT_RHPORT);
}

void hidd_reset(uint8_t rhport)
{
  arrclr_(_hidd_itf);

  #if CFG_TUD_HID_KEYBOARD
  varclr_(&_kbd_rpt);
  #endif

  #if CFG_TUD_HID_MOUSE
  varclr_(&_mse_rpt);
  #endif
}

tusb_error_t hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t *p_len)
{
  uint8_t const *p_desc = (uint8_t const *) desc_itf;

  // TODO not support HID OUT Endpoint
  TU_ASSERT(desc_itf->bNumEndpoints == 1, ERR_TUD_INVALID_DESCRIPTOR);

  //------------- HID descriptor -------------//
  p_desc += p_desc[DESC_OFFSET_LEN];
  tusb_hid_descriptor_hid_t const *desc_hid = (tusb_hid_descriptor_hid_t const *) p_desc;
  TU_ASSERT(HID_DESC_TYPE_HID == desc_hid->bDescriptorType, ERR_TUD_INVALID_DESCRIPTOR);

  //------------- Endpoint Descriptor -------------//
  p_desc += p_desc[DESC_OFFSET_LEN];
  tusb_desc_endpoint_t const *desc_edpt = (tusb_desc_endpoint_t const *) p_desc;
  TU_ASSERT(TUSB_DESC_ENDPOINT == desc_edpt->bDescriptorType, ERR_TUD_INVALID_DESCRIPTOR);

  hidd_interface_t * p_hid = NULL;

  /*------------- Boot protocol only keyboard & mouse -------------*/
  if (desc_itf->bInterfaceSubClass == HID_SUBCLASS_BOOT)
  {
    TU_ASSERT(desc_itf->bInterfaceProtocol == HID_PROTOCOL_KEYBOARD || desc_itf->bInterfaceProtocol == HID_PROTOCOL_MOUSE,  ERR_TUD_INVALID_DESCRIPTOR);

    #if CFG_TUD_HID_KEYBOARD && CFG_TUD_HID_KEYBOARD_BOOT
    if (desc_itf->bInterfaceProtocol == HID_PROTOCOL_KEYBOARD)
    {
      p_hid = &_hidd_itf[ITF_IDX_BOOT_KBD];
      p_hid->desc_report   = usbd_desc_set->hid_report.boot_keyboard;
      p_hid->get_report_cb = tud_hid_keyboard_get_report_cb;
      p_hid->set_report_cb = tud_hid_keyboard_set_report_cb;

      hidd_report_t* report = &_kbd_rpt;
      report->usage = HID_USAGE_DESKTOP_KEYBOARD;
      report->report_id = 0;
      report->report_len = 8;
      report->itf = p_hid;
    }
    #endif

    #if CFG_TUD_HID_MOUSE && CFG_TUD_HID_MOUSE_BOOT
    if (desc_itf->bInterfaceProtocol == HID_PROTOCOL_MOUSE)
    {
      p_hid = &_hidd_itf[ITF_IDX_BOOT_MSE];
      p_hid->desc_report   = usbd_desc_set->hid_report.boot_mouse;
      p_hid->get_report_cb = tud_hid_mouse_get_report_cb;
      p_hid->set_report_cb = tud_hid_mouse_set_report_cb;

      hidd_report_t* report = &_mse_rpt;
      report->usage = HID_USAGE_DESKTOP_MOUSE;
      report->report_id = 0;
      report->report_len = 4;
      report->itf = p_hid;
    }
    #endif

    TU_ASSERT(p_hid, ERR_TUD_INVALID_DESCRIPTOR);
    p_hid->boot_protocol = true; // default mode is BOOT
  }
  /*------------- Generic (multiple report) -------------*/
  else
  {
    // TODO parse report ID for keyboard, mouse
    p_hid = &_hidd_itf[ITF_IDX_GENERIC];

    p_hid->desc_report   = usbd_desc_set->hid_report.generic;
    p_hid->get_report_cb = tud_hid_generic_get_report_cb;
    p_hid->set_report_cb = tud_hid_generic_set_report_cb;

    TU_ASSERT(p_hid, ERR_TUD_INVALID_DESCRIPTOR);
  }

  TU_VERIFY(p_hid->desc_report, ERR_TUD_INVALID_DESCRIPTOR);
  TU_ASSERT( dcd_edpt_open(rhport, desc_edpt), ERR_TUD_EDPT_OPEN_FAILED );

  p_hid->itf_num   = desc_itf->bInterfaceNumber;
  p_hid->ep_in     = desc_edpt->bEndpointAddress;
  p_hid->desc_len  = desc_hid->wReportLength;

  *p_len = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);

  return TUSB_ERROR_NONE;
}

tusb_error_t hidd_control_request_st(uint8_t rhport, tusb_control_request_t const * p_request)
{
  hidd_interface_t* p_hid = get_interface_by_itfnum( (uint8_t) p_request->wIndex );
  TU_ASSERT(p_hid, TUSB_ERROR_FAILED);

  OSAL_SUBTASK_BEGIN

  //------------- STD Request -------------//
  if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_STANDARD)
  {
    uint8_t const desc_type  = u16_high_u8(p_request->wValue);
    uint8_t const desc_index = u16_low_u8 (p_request->wValue);
    (void) desc_index;

    if (p_request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_REPORT)
    {
      // use device control buffer
      STASK_ASSERT ( p_hid->desc_len <= CFG_TUD_CTRL_BUFSIZE );
      memcpy(_usbd_ctrl_buf, p_hid->desc_report, p_hid->desc_len);

      usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, p_hid->desc_len);
    }else
    {
      dcd_control_stall(rhport);
    }
  }
  //------------- Class Specific Request -------------//
  else if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS)
  {
    if( HID_REQ_CONTROL_GET_REPORT == p_request->bRequest )
    {
      // wValue = Report Type | Report ID
      uint8_t const report_type = u16_high_u8(p_request->wValue);
      uint8_t const report_id   = u16_low_u8(p_request->wValue);

      uint16_t xferlen;
      if ( p_hid->get_report_cb )
      {
        xferlen = p_hid->get_report_cb(report_id, (hid_report_type_t) report_type, p_hid->report_buf, p_request->wLength);
      }else
      {
        // For boot Interface only: re-use report_buf -> report has no change
        xferlen = p_request->wLength;
      }

      STASK_ASSERT( xferlen > 0 );
      usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, p_hid->report_buf, xferlen);
    }
    else if ( HID_REQ_CONTROL_SET_REPORT == p_request->bRequest )
    {
      usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, p_request->wLength);

      // wValue = Report Type | Report ID
      uint8_t const report_type = u16_high_u8(p_request->wValue);
      uint8_t const report_id   = u16_low_u8(p_request->wValue);

      if ( p_hid->set_report_cb )
      {
        p_hid->set_report_cb(report_id, (hid_report_type_t) report_type, _usbd_ctrl_buf, p_request->wLength);
      }
    }
    else if (HID_REQ_CONTROL_SET_IDLE == p_request->bRequest)
    {
      // TODO idle rate of report
      p_hid->idle_rate = u16_high_u8(p_request->wValue);
      dcd_control_status(rhport, p_request->bmRequestType_bit.direction);
    }
    else if (HID_REQ_CONTROL_GET_IDLE == p_request->bRequest)
    {
      // TODO idle rate of report
      _usbd_ctrl_buf[0] = p_hid->idle_rate;
      usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, 1);
    }
    else if (HID_REQ_CONTROL_GET_PROTOCOL == p_request->bRequest )
    {
      _usbd_ctrl_buf[0] = 1-p_hid->boot_protocol;   // 0 is Boot, 1 is Report protocol
      usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, 1);
    }
    else if (HID_REQ_CONTROL_SET_PROTOCOL == p_request->bRequest )
    {
      p_hid->boot_protocol = 1 - p_request->wValue; // 0 is Boot, 1 is Report protocol
      dcd_control_status(rhport, p_request->bmRequestType_bit.direction);
    }else
    {
      dcd_control_stall(rhport);
    }
  }else
  {
    dcd_control_stall(rhport);
  }

  OSAL_SUBTASK_END
}

tusb_error_t hidd_xfer_cb(uint8_t rhport, uint8_t edpt_addr, tusb_event_t event, uint32_t xferred_bytes)
{
  // nothing to do
  return TUSB_ERROR_NONE;
}


/*------------------------------------------------------------------*/
/* Ascii to Keycode
 *------------------------------------------------------------------*/
#if CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP

const hid_ascii_to_keycode_entry_t HID_ASCII_TO_KEYCODE[128] =
{
    {0, 0                     }, // 0x00 Null
    {0, 0                     }, // 0x01
    {0, 0                     }, // 0x02
    {0, 0                     }, // 0x03
    {0, 0                     }, // 0x04
    {0, 0                     }, // 0x05
    {0, 0                     }, // 0x06
    {0, 0                     }, // 0x07
    {0, HID_KEY_BACKSPACE     }, // 0x08 Backspace
    {0, HID_KEY_TAB           }, // 0x09 Horizontal Tab
    {0, HID_KEY_RETURN        }, // 0x0A Line Feed
    {0, 0                     }, // 0x0B
    {0, 0                     }, // 0x0C
    {0, HID_KEY_RETURN        }, // 0x0D Carriage return
    {0, 0                     }, // 0x0E
    {0, 0                     }, // 0x0F
    {0, 0                     }, // 0x10
    {0, 0                     }, // 0x11
    {0, 0                     }, // 0x12
    {0, 0                     }, // 0x13
    {0, 0                     }, // 0x14
    {0, 0                     }, // 0x15
    {0, 0                     }, // 0x16
    {0, 0                     }, // 0x17
    {0, 0                     }, // 0x18
    {0, 0                     }, // 0x19
    {0, 0                     }, // 0x1A
    {0, HID_KEY_ESCAPE        }, // 0x1B Escape
    {0, 0                     }, // 0x1C
    {0, 0                     }, // 0x1D
    {0, 0                     }, // 0x1E
    {0, 0                     }, // 0x1F

    {0, HID_KEY_SPACE         }, // 0x20
    {1, HID_KEY_1             }, // 0x21 !
    {1, HID_KEY_APOSTROPHE    }, // 0x22 "
    {1, HID_KEY_3             }, // 0x23 #
    {1, HID_KEY_4             }, // 0x24 $
    {1, HID_KEY_5             }, // 0x25 %
    {1, HID_KEY_7             }, // 0x26 &
    {0, HID_KEY_APOSTROPHE    }, // 0x27 '
    {1, HID_KEY_9             }, // 0x28 (
    {1, HID_KEY_0             }, // 0x29 )
    {1, HID_KEY_8             }, // 0x2A *
    {1, HID_KEY_EQUAL         }, // 0x2B +
    {0, HID_KEY_COMMA         }, // 0x2C ,
    {0, HID_KEY_MINUS         }, // 0x2D -
    {0, HID_KEY_PERIOD        }, // 0x2E .
    {0, HID_KEY_SLASH         }, // 0x2F /
    {0, HID_KEY_0             }, // 0x30 0
    {0, HID_KEY_1             }, // 0x31 1
    {0, HID_KEY_2             }, // 0x32 2
    {0, HID_KEY_3             }, // 0x33 3
    {0, HID_KEY_4             }, // 0x34 4
    {0, HID_KEY_5             }, // 0x35 5
    {0, HID_KEY_6             }, // 0x36 6
    {0, HID_KEY_7             }, // 0x37 7
    {0, HID_KEY_8             }, // 0x38 8
    {0, HID_KEY_9             }, // 0x39 9
    {1, HID_KEY_SEMICOLON     }, // 0x3A :
    {0, HID_KEY_SEMICOLON     }, // 0x3B ;
    {1, HID_KEY_COMMA         }, // 0x3C <
    {0, HID_KEY_EQUAL         }, // 0x3D =
    {1, HID_KEY_PERIOD        }, // 0x3E >
    {1, HID_KEY_SLASH         }, // 0x3F ?

    {1, HID_KEY_2             }, // 0x40 @
    {1, HID_KEY_A             }, // 0x41 A
    {1, HID_KEY_B             }, // 0x42 B
    {1, HID_KEY_C             }, // 0x43 C
    {1, HID_KEY_D             }, // 0x44 D
    {1, HID_KEY_E             }, // 0x45 E
    {1, HID_KEY_F             }, // 0x46 F
    {1, HID_KEY_G             }, // 0x47 G
    {1, HID_KEY_H             }, // 0x48 H
    {1, HID_KEY_I             }, // 0x49 I
    {1, HID_KEY_J             }, // 0x4A J
    {1, HID_KEY_K             }, // 0x4B K
    {1, HID_KEY_L             }, // 0x4C L
    {1, HID_KEY_M             }, // 0x4D M
    {1, HID_KEY_N             }, // 0x4E N
    {1, HID_KEY_O             }, // 0x4F O
    {1, HID_KEY_P             }, // 0x50 P
    {1, HID_KEY_Q             }, // 0x51 Q
    {1, HID_KEY_R             }, // 0x52 R
    {1, HID_KEY_S             }, // 0x53 S
    {1, HID_KEY_T             }, // 0x55 T
    {1, HID_KEY_U             }, // 0x55 U
    {1, HID_KEY_V             }, // 0x56 V
    {1, HID_KEY_W             }, // 0x57 W
    {1, HID_KEY_X             }, // 0x58 X
    {1, HID_KEY_Y             }, // 0x59 Y
    {1, HID_KEY_Z             }, // 0x5A Z
    {0, HID_KEY_BRACKET_LEFT  }, // 0x5B [
    {0, HID_KEY_BACKSLASH     }, // 0x5C '\'
    {0, HID_KEY_BRACKET_RIGHT }, // 0x5D ]
    {1, HID_KEY_6             }, // 0x5E ^
    {1, HID_KEY_MINUS         }, // 0x5F _

    {0, HID_KEY_GRAVE         }, // 0x60 `
    {0, HID_KEY_A             }, // 0x61 a
    {0, HID_KEY_B             }, // 0x62 b
    {0, HID_KEY_C             }, // 0x63 c
    {0, HID_KEY_D             }, // 0x66 d
    {0, HID_KEY_E             }, // 0x65 e
    {0, HID_KEY_F             }, // 0x66 f
    {0, HID_KEY_G             }, // 0x67 g
    {0, HID_KEY_H             }, // 0x68 h
    {0, HID_KEY_I             }, // 0x69 i
    {0, HID_KEY_J             }, // 0x6A j
    {0, HID_KEY_K             }, // 0x6B k
    {0, HID_KEY_L             }, // 0x6C l
    {0, HID_KEY_M             }, // 0x6D m
    {0, HID_KEY_N             }, // 0x6E n
    {0, HID_KEY_O             }, // 0x6F o
    {0, HID_KEY_P             }, // 0x70 p
    {0, HID_KEY_Q             }, // 0x71 q
    {0, HID_KEY_R             }, // 0x72 r
    {0, HID_KEY_S             }, // 0x73 s
    {0, HID_KEY_T             }, // 0x75 t
    {0, HID_KEY_U             }, // 0x75 u
    {0, HID_KEY_V             }, // 0x76 v
    {0, HID_KEY_W             }, // 0x77 w
    {0, HID_KEY_X             }, // 0x78 x
    {0, HID_KEY_Y             }, // 0x79 y
    {0, HID_KEY_Z             }, // 0x7A z
    {1, HID_KEY_BRACKET_LEFT  }, // 0x7B {
    {1, HID_KEY_BACKSLASH     }, // 0x7C |
    {1, HID_KEY_BRACKET_RIGHT }, // 0x7D }
    {1, HID_KEY_GRAVE         }, // 0x7E ~
    {0, HID_KEY_DELETE        }  // 0x7F Delete
};

#endif

#endif