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Diffstat (limited to 'lib/lufa/LUFA/Drivers/USB/Class/Device/HIDClassDevice.c')
-rw-r--r--lib/lufa/LUFA/Drivers/USB/Class/Device/HIDClassDevice.c211
1 files changed, 211 insertions, 0 deletions
diff --git a/lib/lufa/LUFA/Drivers/USB/Class/Device/HIDClassDevice.c b/lib/lufa/LUFA/Drivers/USB/Class/Device/HIDClassDevice.c
new file mode 100644
index 000000000..a8a6e8b50
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/USB/Class/Device/HIDClassDevice.c
@@ -0,0 +1,211 @@
1/*
2 LUFA Library
3 Copyright (C) Dean Camera, 2017.
4
5 dean [at] fourwalledcubicle [dot] com
6 www.lufa-lib.org
7*/
8
9/*
10 Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
11
12 Permission to use, copy, modify, distribute, and sell this
13 software and its documentation for any purpose is hereby granted
14 without fee, provided that the above copyright notice appear in
15 all copies and that both that the copyright notice and this
16 permission notice and warranty disclaimer appear in supporting
17 documentation, and that the name of the author not be used in
18 advertising or publicity pertaining to distribution of the
19 software without specific, written prior permission.
20
21 The author disclaims all warranties with regard to this
22 software, including all implied warranties of merchantability
23 and fitness. In no event shall the author be liable for any
24 special, indirect or consequential damages or any damages
25 whatsoever resulting from loss of use, data or profits, whether
26 in an action of contract, negligence or other tortious action,
27 arising out of or in connection with the use or performance of
28 this software.
29*/
30
31#define __INCLUDE_FROM_USB_DRIVER
32#include "../../Core/USBMode.h"
33
34#if defined(USB_CAN_BE_DEVICE)
35
36#define __INCLUDE_FROM_HID_DRIVER
37#define __INCLUDE_FROM_HID_DEVICE_C
38#include "HIDClassDevice.h"
39
40void HID_Device_ProcessControlRequest(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
41{
42 if (!(Endpoint_IsSETUPReceived()))
43 return;
44
45 if (USB_ControlRequest.wIndex != HIDInterfaceInfo->Config.InterfaceNumber)
46 return;
47
48 switch (USB_ControlRequest.bRequest)
49 {
50 case HID_REQ_GetReport:
51 if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
52 {
53 uint16_t ReportSize = 0;
54 uint8_t ReportID = (USB_ControlRequest.wValue & 0xFF);
55 uint8_t ReportType = (USB_ControlRequest.wValue >> 8) - 1;
56 uint8_t ReportData[HIDInterfaceInfo->Config.PrevReportINBufferSize];
57
58 memset(ReportData, 0, sizeof(ReportData));
59
60 CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, ReportType, ReportData, &ReportSize);
61
62 if (HIDInterfaceInfo->Config.PrevReportINBuffer != NULL)
63 {
64 memcpy(HIDInterfaceInfo->Config.PrevReportINBuffer, ReportData,
65 HIDInterfaceInfo->Config.PrevReportINBufferSize);
66 }
67
68 Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
69
70 Endpoint_ClearSETUP();
71
72 if (ReportID)
73 Endpoint_Write_8(ReportID);
74
75 Endpoint_Write_Control_Stream_LE(ReportData, ReportSize);
76 Endpoint_ClearOUT();
77 }
78
79 break;
80 case HID_REQ_SetReport:
81 if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
82 {
83 uint16_t ReportSize = USB_ControlRequest.wLength;
84 uint8_t ReportID = (USB_ControlRequest.wValue & 0xFF);
85 uint8_t ReportType = (USB_ControlRequest.wValue >> 8) - 1;
86 uint8_t ReportData[ReportSize];
87
88 Endpoint_ClearSETUP();
89 Endpoint_Read_Control_Stream_LE(ReportData, ReportSize);
90 Endpoint_ClearIN();
91
92 CALLBACK_HID_Device_ProcessHIDReport(HIDInterfaceInfo, ReportID, ReportType,
93 &ReportData[ReportID ? 1 : 0], ReportSize - (ReportID ? 1 : 0));
94 }
95
96 break;
97 case HID_REQ_GetProtocol:
98 if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
99 {
100 Endpoint_ClearSETUP();
101 while (!(Endpoint_IsINReady()));
102 Endpoint_Write_8(HIDInterfaceInfo->State.UsingReportProtocol);
103 Endpoint_ClearIN();
104 Endpoint_ClearStatusStage();
105 }
106
107 break;
108 case HID_REQ_SetProtocol:
109 if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
110 {
111 Endpoint_ClearSETUP();
112 Endpoint_ClearStatusStage();
113
114 HIDInterfaceInfo->State.UsingReportProtocol = ((USB_ControlRequest.wValue & 0xFF) != 0x00);
115 }
116
117 break;
118 case HID_REQ_SetIdle:
119 if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
120 {
121 Endpoint_ClearSETUP();
122 Endpoint_ClearStatusStage();
123
124 HIDInterfaceInfo->State.IdleCount = ((USB_ControlRequest.wValue & 0xFF00) >> 6);
125 }
126
127 break;
128 case HID_REQ_GetIdle:
129 if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
130 {
131 Endpoint_ClearSETUP();
132 while (!(Endpoint_IsINReady()));
133 Endpoint_Write_8(HIDInterfaceInfo->State.IdleCount >> 2);
134 Endpoint_ClearIN();
135 Endpoint_ClearStatusStage();
136 }
137
138 break;
139 }
140}
141
142bool HID_Device_ConfigureEndpoints(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
143{
144 memset(&HIDInterfaceInfo->State, 0x00, sizeof(HIDInterfaceInfo->State));
145 HIDInterfaceInfo->State.UsingReportProtocol = true;
146 HIDInterfaceInfo->State.IdleCount = 500;
147
148 HIDInterfaceInfo->Config.ReportINEndpoint.Type = EP_TYPE_INTERRUPT;
149
150 if (!(Endpoint_ConfigureEndpointTable(&HIDInterfaceInfo->Config.ReportINEndpoint, 1)))
151 return false;
152
153 return true;
154}
155
156void HID_Device_USBTask(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
157{
158 if (USB_DeviceState != DEVICE_STATE_Configured)
159 return;
160
161 if (HIDInterfaceInfo->State.PrevFrameNum == USB_Device_GetFrameNumber())
162 {
163 #if defined(USB_DEVICE_OPT_LOWSPEED)
164 if (!(USB_Options & USB_DEVICE_OPT_LOWSPEED))
165 return;
166 #else
167 return;
168 #endif
169 }
170
171 Endpoint_SelectEndpoint(HIDInterfaceInfo->Config.ReportINEndpoint.Address);
172
173 if (Endpoint_IsReadWriteAllowed())
174 {
175 uint8_t ReportINData[HIDInterfaceInfo->Config.PrevReportINBufferSize];
176 uint8_t ReportID = 0;
177 uint16_t ReportINSize = 0;
178
179 memset(ReportINData, 0, sizeof(ReportINData));
180
181 bool ForceSend = CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, HID_REPORT_ITEM_In,
182 ReportINData, &ReportINSize);
183 bool StatesChanged = false;
184 bool IdlePeriodElapsed = (HIDInterfaceInfo->State.IdleCount && !(HIDInterfaceInfo->State.IdleMSRemaining));
185
186 if (HIDInterfaceInfo->Config.PrevReportINBuffer != NULL)
187 {
188 StatesChanged = (memcmp(ReportINData, HIDInterfaceInfo->Config.PrevReportINBuffer, ReportINSize) != 0);
189 memcpy(HIDInterfaceInfo->Config.PrevReportINBuffer, ReportINData, HIDInterfaceInfo->Config.PrevReportINBufferSize);
190 }
191
192 if (ReportINSize && (ForceSend || StatesChanged || IdlePeriodElapsed))
193 {
194 HIDInterfaceInfo->State.IdleMSRemaining = HIDInterfaceInfo->State.IdleCount;
195
196 Endpoint_SelectEndpoint(HIDInterfaceInfo->Config.ReportINEndpoint.Address);
197
198 if (ReportID)
199 Endpoint_Write_8(ReportID);
200
201 Endpoint_Write_Stream_LE(ReportINData, ReportINSize, NULL);
202
203 Endpoint_ClearIN();
204 }
205
206 HIDInterfaceInfo->State.PrevFrameNum = USB_Device_GetFrameNumber();
207 }
208}
209
210#endif
211
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-07 15:15:34 +0000