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525 lines
18 KiB
C
525 lines
18 KiB
C
/**************************************************************************/
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/*!
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@file hid_device.c
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2013, hathach (tinyusb.org)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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This file is part of the tinyusb stack.
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*/
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/**************************************************************************/
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#include "tusb_option.h"
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#if (TUSB_OPT_DEVICE_ENABLED && TUD_OPT_HID_ENABLED)
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#define _TINY_USB_SOURCE_FILE_
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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#include "common/tusb_common.h"
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#include "common/timeout_timer.h"
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#include "hid_device.h"
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#include "device/usbd_pvt.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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// Max report len is keyboard's one with 8 byte + 1 byte report id
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#define REPORT_BUFSIZE 9
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typedef struct {
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uint8_t itf_num;
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uint8_t ep_in;
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uint8_t idle_rate;
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uint8_t report_id;
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uint16_t report_len;
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uint8_t const * report_desc;
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// class specific control request
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uint16_t (*get_report_cb) (hid_report_type_t type, uint8_t* buffer, uint16_t reqlen);
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void (*set_report_cb) (hid_report_type_t type, uint8_t const* buffer, uint16_t bufsize);
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CFG_TUSB_MEM_ALIGN uint8_t report_buf[REPORT_BUFSIZE];
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}hidd_interface_t;
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#if CFG_TUD_HID_BOOT_PROTOCOL
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CFG_TUSB_ATTR_USBRAM static hidd_interface_t _kbd_itf;
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CFG_TUSB_ATTR_USBRAM static hidd_interface_t _mse_itf;
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#else
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CFG_TUSB_ATTR_USBRAM static hidd_interface_t _composite_itf;
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#endif
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//--------------------------------------------------------------------+
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// KEYBOARD APPLICATION API
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//--------------------------------------------------------------------+
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#if CFG_TUD_HID_KEYBOARD
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bool tud_hid_keyboard_busy(void)
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{
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return dcd_edpt_busy(TUD_OPT_RHPORT, _kbd_itf.ep_in);
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}
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bool tud_hid_keyboard_send_report(hid_keyboard_report_t const *p_report)
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{
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VERIFY( tud_mounted() && !tud_hid_keyboard_busy() );
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hidd_interface_t * p_hid = &_kbd_itf;
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if ( p_report )
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{
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memcpy(p_hid->report_buf, p_report, sizeof(hid_keyboard_report_t));
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}else
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{
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// empty report
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arrclr_(p_hid->report_buf);
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}
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return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, sizeof(hid_keyboard_report_t));
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}
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bool tud_hid_keyboard_send_keycode(uint8_t modifier, uint8_t keycode[6])
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{
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hid_keyboard_report_t report = { .modifier = modifier };
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memcpy(report.keycode, keycode, 6);
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return tud_hid_keyboard_send_report(&report);
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}
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#if CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP
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bool tud_hid_keyboard_send_char(char ch)
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{
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hid_keyboard_report_t report;
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varclr_(&report);
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report.modifier = ( HID_ASCII_TO_KEYCODE[(uint8_t)ch].shift ) ? KEYBOARD_MODIFIER_LEFTSHIFT : 0;
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report.keycode[0] = HID_ASCII_TO_KEYCODE[(uint8_t)ch].keycode;
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return tud_hid_keyboard_send_report(&report);
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}
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bool tud_hid_keyboard_send_string(const char* str, uint32_t interval_ms)
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{
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// Send each key in string
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char ch;
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while( (ch = *str++) != 0 )
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{
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char lookahead = *str;
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tud_hid_keyboard_send_char(ch);
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// Blocking delay
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timeout_blocking_wait(interval_ms);
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/* Only need to empty report if the next character is NULL or the same with
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* the current one, else no need to send */
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if ( lookahead == ch || lookahead == 0 )
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{
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tud_hid_keyboard_send_report(NULL);
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timeout_blocking_wait(interval_ms);
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}
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}
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}
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#endif // CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP
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#endif
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//--------------------------------------------------------------------+
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// MOUSE APPLICATION API
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//--------------------------------------------------------------------+
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#if CFG_TUD_HID_MOUSE
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bool tud_hid_mouse_busy(void)
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{
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return dcd_edpt_busy(TUD_OPT_RHPORT, _mse_itf.ep_in);
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}
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bool tud_hid_mouse_send(hid_mouse_report_t const *p_report)
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{
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VERIFY( tud_mounted() && !tud_hid_mouse_is_busy() );
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hidd_interface_t * p_hid = &_mse_itf;
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memcpy(p_hid->report_buf, p_report, sizeof(hid_mouse_report_t));
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return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, sizeof(hid_mouse_report_t));
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}
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#endif
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static inline hidd_interface_t* get_interface_by_edpt(uint8_t ep_addr)
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{
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return ( ep_addr == _kbd_itf.ep_in ) ? &_kbd_itf :
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( ep_addr == _mse_itf.ep_in ) ? &_mse_itf : NULL;
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}
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static inline hidd_interface_t* get_interface_by_number(uint8_t itf_num)
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{
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return ( itf_num == _kbd_itf.itf_num ) ? &_kbd_itf :
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( itf_num == _mse_itf.itf_num ) ? &_mse_itf : NULL;
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}
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//--------------------------------------------------------------------+
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// USBD-CLASS API
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//--------------------------------------------------------------------+
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void hidd_init(void)
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{
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hidd_reset(TUD_OPT_RHPORT);
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}
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void hidd_reset(uint8_t rhport)
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{
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#if CFG_TUD_HID_MOUSE
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varclr_(&_mse_itf);
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#endif
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#if CFG_TUD_HID_KEYBOARD
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varclr_(&_kbd_itf);
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#endif
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}
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tusb_error_t hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t *p_length)
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{
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uint8_t const *p_desc = (uint8_t const *) desc_itf;
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//------------- HID descriptor -------------//
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p_desc += p_desc[DESC_OFFSET_LEN];
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tusb_hid_descriptor_hid_t const *desc_hid = (tusb_hid_descriptor_hid_t const *) p_desc;
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TU_ASSERT(HID_DESC_TYPE_HID == desc_hid->bDescriptorType, TUSB_ERROR_HIDD_DESCRIPTOR_INTERFACE);
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//------------- Endpoint Descriptor -------------//
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p_desc += p_desc[DESC_OFFSET_LEN];
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tusb_desc_endpoint_t const *desc_edpt = (tusb_desc_endpoint_t const *) p_desc;
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TU_ASSERT(TUSB_DESC_ENDPOINT == desc_edpt->bDescriptorType, TUSB_ERROR_HIDD_DESCRIPTOR_INTERFACE);
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if (desc_itf->bInterfaceSubClass == HID_SUBCLASS_BOOT)
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{
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#if CFG_TUD_HID_BOOT_PROTOCOL
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if ( (desc_itf->bInterfaceProtocol != HID_PROTOCOL_KEYBOARD) && (desc_itf->bInterfaceProtocol != HID_PROTOCOL_MOUSE) )
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{
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// unknown, unsupported protocol
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return TUSB_ERROR_HIDD_DESCRIPTOR_INTERFACE;
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}else
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{
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hidd_interface_t * p_hid = NULL;
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#if CFG_TUD_HID_KEYBOARD
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if (desc_itf->bInterfaceProtocol == HID_PROTOCOL_KEYBOARD)
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{
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p_hid = &_kbd_itf;
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p_hid->report_desc = tud_desc_set.hid_report.boot_keyboard;
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p_hid->get_report_cb = tud_hid_keyboard_get_report_cb;
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p_hid->set_report_cb = tud_hid_keyboard_set_report_cb;
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}
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#endif
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#if CFG_TUD_HID_MOUSE
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if (desc_itf->bInterfaceProtocol == HID_PROTOCOL_MOUSE)
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{
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p_hid = &_mse_itf;
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p_hid->report_desc = tud_desc_set.hid_report.boot_mouse;
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p_hid->get_report_cb = tud_hid_mouse_get_report_cb;
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p_hid->set_report_cb = tud_hid_mouse_set_report_cb;
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}
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#endif
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TU_ASSERT(p_hid, TUSB_ERROR_HIDD_DESCRIPTOR_INTERFACE);
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VERIFY(p_hid->report_desc, TUSB_ERROR_DESCRIPTOR_CORRUPTED);
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TU_ASSERT( dcd_edpt_open(rhport, desc_edpt), TUSB_ERROR_DCD_FAILED );
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p_hid->report_len = desc_hid->wReportLength;
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p_hid->itf_num = desc_itf->bInterfaceNumber;
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p_hid->ep_in = desc_edpt->bEndpointAddress;
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p_hid->report_id = 0;
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*p_length = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + sizeof(tusb_desc_endpoint_t);
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}
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#else
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return TUSB_ERROR_HIDD_DESCRIPTOR_INTERFACE;
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#endif
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}
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else
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{
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// TODO HID generic
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// TODO parse report ID for keyboard, mouse
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*p_length = 0;
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return TUSB_ERROR_HIDD_DESCRIPTOR_INTERFACE;
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}
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return TUSB_ERROR_NONE;
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}
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tusb_error_t hidd_control_request_st(uint8_t rhport, tusb_control_request_t const * p_request)
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{
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hidd_interface_t* p_hid = get_interface_by_number( (uint8_t) p_request->wIndex );
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TU_ASSERT(p_hid, TUSB_ERROR_FAILED);
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OSAL_SUBTASK_BEGIN
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//------------- STD Request -------------//
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if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_STANDARD)
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{
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uint8_t const desc_type = u16_high_u8(p_request->wValue);
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uint8_t const desc_index = u16_low_u8 (p_request->wValue);
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(void) desc_index;
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if (p_request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_REPORT)
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{
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STASK_ASSERT ( p_hid->report_len <= CFG_TUD_CTRL_BUFSIZE );
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// use device control buffer (in USB SRAM)
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memcpy(_usbd_ctrl_buf, p_hid->report_desc, p_hid->report_len);
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usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, p_hid->report_len);
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}else
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{
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dcd_control_stall(rhport);
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}
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}
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//------------- Class Specific Request -------------//
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else if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS)
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{
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if( HID_REQ_CONTROL_GET_REPORT == p_request->bRequest )
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{
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// wValue = Report Type | Report ID
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uint8_t const report_type = u16_high_u8(p_request->wValue);
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uint8_t const report_id = u16_low_u8(p_request->wValue);
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// Composite interface need to determine it is Keyboard, Mouse or Gamepad
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if ( report_id > 0 )
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{
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}
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uint16_t xferlen;
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if ( p_hid->get_report_cb )
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{
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xferlen = p_hid->get_report_cb((hid_report_type_t) report_type, p_hid->report_buf, p_request->wLength);
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}else
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{
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xferlen = p_request->wLength;
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// re-use report_buf -> report has no change
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}
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STASK_ASSERT( xferlen > 0 );
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usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, p_hid->report_buf, xferlen);
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}
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else if ( HID_REQ_CONTROL_SET_REPORT == p_request->bRequest )
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{
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// wValue = Report Type | Report ID
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usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, p_request->wLength);
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if ( p_hid->set_report_cb )
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{
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p_hid->set_report_cb(u16_high_u8(p_request->wValue), _usbd_ctrl_buf, p_request->wLength);
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}
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}
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else if (HID_REQ_CONTROL_SET_IDLE == p_request->bRequest)
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{
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p_hid->idle_rate = u16_high_u8(p_request->wValue);
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dcd_control_status(rhport, p_request->bmRequestType_bit.direction);
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}
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else if (HID_REQ_CONTROL_GET_IDLE == p_request->bRequest)
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{
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_usbd_ctrl_buf[0] = p_hid->idle_rate;
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usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, 1);
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}
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else if (HID_REQ_CONTROL_GET_PROTOCOL == p_request->bRequest )
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{
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_usbd_ctrl_buf[0] = 1 - CFG_TUD_HID_BOOT_PROTOCOL; // 0 is Boot, 1 is Report protocol
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usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, _usbd_ctrl_buf, 1);
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}
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else
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{
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// HID_REQ_CONTROL_SET_PROTOCOL:
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dcd_control_stall(rhport);
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}
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}else
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{
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dcd_control_stall(rhport);
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}
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OSAL_SUBTASK_END
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}
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tusb_error_t hidd_xfer_cb(uint8_t rhport, uint8_t edpt_addr, tusb_event_t event, uint32_t xferred_bytes)
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{
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// nothing to do
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return TUSB_ERROR_NONE;
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}
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/*------------------------------------------------------------------*/
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/* Ascii to Keycode
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*------------------------------------------------------------------*/
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const hid_ascii_to_keycode_entry_t HID_ASCII_TO_KEYCODE[128] =
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{
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{0, 0 }, // 0x00 Null
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{0, 0 }, // 0x01
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{0, 0 }, // 0x02
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{0, 0 }, // 0x03
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{0, 0 }, // 0x04
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{0, 0 }, // 0x05
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{0, 0 }, // 0x06
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{0, 0 }, // 0x07
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{0, HID_KEY_BACKSPACE }, // 0x08 Backspace
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{0, HID_KEY_TAB }, // 0x09 Horizontal Tab
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{0, HID_KEY_RETURN }, // 0x0A Line Feed
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{0, 0 }, // 0x0B
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{0, 0 }, // 0x0C
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{0, HID_KEY_RETURN }, // 0x0D Carriage return
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{0, 0 }, // 0x0E
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{0, 0 }, // 0x0F
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{0, 0 }, // 0x10
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{0, 0 }, // 0x11
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{0, 0 }, // 0x12
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{0, 0 }, // 0x13
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{0, 0 }, // 0x14
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{0, 0 }, // 0x15
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{0, 0 }, // 0x16
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{0, 0 }, // 0x17
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{0, 0 }, // 0x18
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{0, 0 }, // 0x19
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{0, 0 }, // 0x1A
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{0, HID_KEY_ESCAPE }, // 0x1B Escape
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{0, 0 }, // 0x1C
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{0, 0 }, // 0x1D
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{0, 0 }, // 0x1E
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{0, 0 }, // 0x1F
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{0, HID_KEY_SPACE }, // 0x20
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{1, HID_KEY_1 }, // 0x21 !
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{1, HID_KEY_APOSTROPHE }, // 0x22 "
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{1, HID_KEY_3 }, // 0x23 #
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{1, HID_KEY_4 }, // 0x24 $
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{1, HID_KEY_5 }, // 0x25 %
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{1, HID_KEY_7 }, // 0x26 &
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{0, HID_KEY_APOSTROPHE }, // 0x27 '
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{1, HID_KEY_9 }, // 0x28 (
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{1, HID_KEY_0 }, // 0x29 )
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{1, HID_KEY_8 }, // 0x2A *
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{1, HID_KEY_EQUAL }, // 0x2B +
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{0, HID_KEY_COMMA }, // 0x2C ,
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{0, HID_KEY_MINUS }, // 0x2D -
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{0, HID_KEY_PERIOD }, // 0x2E .
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{0, HID_KEY_SLASH }, // 0x2F /
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{0, HID_KEY_0 }, // 0x30 0
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{0, HID_KEY_1 }, // 0x31 1
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{0, HID_KEY_2 }, // 0x32 2
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{0, HID_KEY_3 }, // 0x33 3
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{0, HID_KEY_4 }, // 0x34 4
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{0, HID_KEY_5 }, // 0x35 5
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{0, HID_KEY_6 }, // 0x36 6
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{0, HID_KEY_7 }, // 0x37 7
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{0, HID_KEY_8 }, // 0x38 8
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{0, HID_KEY_9 }, // 0x39 9
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{1, HID_KEY_SEMICOLON }, // 0x3A :
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{0, HID_KEY_SEMICOLON }, // 0x3B ;
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{1, HID_KEY_COMMA }, // 0x3C <
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{0, HID_KEY_EQUAL }, // 0x3D =
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{1, HID_KEY_PERIOD }, // 0x3E >
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{1, HID_KEY_SLASH }, // 0x3F ?
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{1, HID_KEY_2 }, // 0x40 @
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{1, HID_KEY_A }, // 0x41 A
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{1, HID_KEY_B }, // 0x42 B
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{1, HID_KEY_C }, // 0x43 C
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{1, HID_KEY_D }, // 0x44 D
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{1, HID_KEY_E }, // 0x45 E
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{1, HID_KEY_F }, // 0x46 F
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{1, HID_KEY_G }, // 0x47 G
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{1, HID_KEY_H }, // 0x48 H
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{1, HID_KEY_I }, // 0x49 I
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{1, HID_KEY_J }, // 0x4A J
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{1, HID_KEY_K }, // 0x4B K
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{1, HID_KEY_L }, // 0x4C L
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{1, HID_KEY_M }, // 0x4D M
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{1, HID_KEY_N }, // 0x4E N
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{1, HID_KEY_O }, // 0x4F O
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{1, HID_KEY_P }, // 0x50 P
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{1, HID_KEY_Q }, // 0x51 Q
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{1, HID_KEY_R }, // 0x52 R
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{1, HID_KEY_S }, // 0x53 S
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{1, HID_KEY_T }, // 0x55 T
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{1, HID_KEY_U }, // 0x55 U
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{1, HID_KEY_V }, // 0x56 V
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{1, HID_KEY_W }, // 0x57 W
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{1, HID_KEY_X }, // 0x58 X
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{1, HID_KEY_Y }, // 0x59 Y
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{1, HID_KEY_Z }, // 0x5A Z
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{0, HID_KEY_BRACKET_LEFT }, // 0x5B [
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{0, HID_KEY_BACKSLASH }, // 0x5C '\'
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{0, HID_KEY_BRACKET_RIGHT }, // 0x5D ]
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{1, HID_KEY_6 }, // 0x5E ^
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{1, HID_KEY_MINUS }, // 0x5F _
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{0, HID_KEY_GRAVE }, // 0x60 `
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{0, HID_KEY_A }, // 0x61 a
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{0, HID_KEY_B }, // 0x62 b
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{0, HID_KEY_C }, // 0x63 c
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{0, HID_KEY_D }, // 0x66 d
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{0, HID_KEY_E }, // 0x65 e
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{0, HID_KEY_F }, // 0x66 f
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{0, HID_KEY_G }, // 0x67 g
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{0, HID_KEY_H }, // 0x68 h
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{0, HID_KEY_I }, // 0x69 i
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{0, HID_KEY_J }, // 0x6A j
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{0, HID_KEY_K }, // 0x6B k
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{0, HID_KEY_L }, // 0x6C l
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{0, HID_KEY_M }, // 0x6D m
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{0, HID_KEY_N }, // 0x6E n
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{0, HID_KEY_O }, // 0x6F o
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{0, HID_KEY_P }, // 0x70 p
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{0, HID_KEY_Q }, // 0x71 q
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{0, HID_KEY_R }, // 0x72 r
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{0, HID_KEY_S }, // 0x73 s
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{0, HID_KEY_T }, // 0x75 t
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{0, HID_KEY_U }, // 0x75 u
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{0, HID_KEY_V }, // 0x76 v
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{0, HID_KEY_W }, // 0x77 w
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{0, HID_KEY_X }, // 0x78 x
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{0, HID_KEY_Y }, // 0x79 y
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{0, HID_KEY_Z }, // 0x7A z
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{1, HID_KEY_BRACKET_LEFT }, // 0x7B {
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{1, HID_KEY_BACKSLASH }, // 0x7C |
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{1, HID_KEY_BRACKET_RIGHT }, // 0x7D }
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{1, HID_KEY_GRAVE }, // 0x7E ~
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{0, HID_KEY_DELETE } // 0x7F Delete
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};
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#endif
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