98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
/*
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* Copyright (c) 2019, Alex Taradov <alex@taradov.com>
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* All rights reserved.
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*
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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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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* 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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*- Includes ----------------------------------------------------------------*/
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#include <stdbool.h>
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#include <stdalign.h>
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#include <string.h>
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#include "utils.h"
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#include "usb.h"
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#include "usb_std.h"
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#include "usb_hid.h"
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#include "usb_descriptors.h"
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/*- Prototypes --------------------------------------------------------------*/
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static void usb_hid_ep_send_callback(int size);
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static void usb_hid_ep_recv_callback(int size);
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/*- Implementations ---------------------------------------------------------*/
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//-----------------------------------------------------------------------------
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void usb_hid_init(void)
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{
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usb_set_callback(USB_HID_EP_SEND, usb_hid_ep_send_callback);
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usb_set_callback(USB_HID_EP_RECV, usb_hid_ep_recv_callback);
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}
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//-----------------------------------------------------------------------------
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void usb_hid_send(uint8_t *data, int size)
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{
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usb_send(USB_HID_EP_SEND, data, size);
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}
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//-----------------------------------------------------------------------------
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void usb_hid_recv(uint8_t *data, int size)
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{
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usb_recv(USB_HID_EP_RECV, data, size);
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}
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//-----------------------------------------------------------------------------
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static void usb_hid_ep_send_callback(int size)
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{
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usb_hid_send_callback();
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(void)size;
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}
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//-----------------------------------------------------------------------------
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static void usb_hid_ep_recv_callback(int size)
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{
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usb_hid_recv_callback(size);
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}
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//-----------------------------------------------------------------------------
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bool usb_hid_handle_request(usb_request_t *request)
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{
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int length = request->wLength;
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switch ((request->bRequest << 8) | request->bmRequestType)
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{
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case USB_CMD(IN, INTERFACE, STANDARD, GET_DESCRIPTOR):
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{
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length = LIMIT(length, sizeof(usb_hid_report_descriptor));
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usb_control_send((uint8_t *)usb_hid_report_descriptor, length);
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} break;
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default:
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return false;
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}
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return true;
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}
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