aboutsummaryrefslogtreecommitdiffstats
path: root/Demos/Device/LowLevel/Keyboard/Keyboard.c
diff options
context:
space:
mode:
Diffstat (limited to 'Demos/Device/LowLevel/Keyboard/Keyboard.c')
-rw-r--r--Demos/Device/LowLevel/Keyboard/Keyboard.c73
1 files changed, 37 insertions, 36 deletions
diff --git a/Demos/Device/LowLevel/Keyboard/Keyboard.c b/Demos/Device/LowLevel/Keyboard/Keyboard.c
index b4d4c2137..9d187f850 100644
--- a/Demos/Device/LowLevel/Keyboard/Keyboard.c
+++ b/Demos/Device/LowLevel/Keyboard/Keyboard.c
@@ -1,7 +1,7 @@
/*
LUFA Library
Copyright (C) Dean Camera, 2010.
-
+
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
@@ -10,13 +10,13 @@
Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
+ without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
@@ -34,7 +34,7 @@
* Main source file for the Keyboard demo. This file contains the main tasks of the demo and
* is responsible for the initial application hardware configuration.
*/
-
+
#include "Keyboard.h"
/** Indicates what report mode the host has requested, true for normal HID reporting mode, false for special boot
@@ -48,7 +48,7 @@ bool UsingReportProtocol = true;
uint16_t IdleCount = 500;
/** Current Idle period remaining. When the IdleCount value is set, this tracks the remaining number of idle
- * milliseconds. This is separate to the IdleCount timer and is incremented and compared as the host may request
+ * milliseconds. This is separate to the IdleCount timer and is incremented and compared as the host may request
* the current idle period via a Get Idle HID class request, thus its value must be preserved.
*/
uint16_t IdleMSRemaining = 0;
@@ -60,7 +60,7 @@ uint16_t IdleMSRemaining = 0;
int main(void)
{
SetupHardware();
-
+
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
sei();
@@ -113,7 +113,7 @@ void EVENT_USB_Device_Disconnect(void)
* of the USB device after enumeration, and configures the keyboard device endpoints.
*/
void EVENT_USB_Device_ConfigurationChanged(void)
-{
+{
bool ConfigSuccess = true;
/* Setup HID Report Endpoints */
@@ -126,7 +126,7 @@ void EVENT_USB_Device_ConfigurationChanged(void)
USB_Device_EnableSOFEvents();
/* Indicate endpoint configuration success or failure */
- LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+ LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
}
/** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
@@ -152,13 +152,13 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
Endpoint_Write_Control_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData));
Endpoint_ClearOUT();
}
-
+
break;
case REQ_SetReport:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
-
+
/* Wait until the LED report has been sent by the host */
while (!(Endpoint_IsOUTReceived()))
{
@@ -175,20 +175,20 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
/* Process the incoming LED report */
ProcessLEDReport(LEDStatus);
}
-
+
break;
case REQ_GetProtocol:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
-
+
/* Write the current protocol flag to the host */
Endpoint_Write_Byte(UsingReportProtocol);
Endpoint_ClearIN();
Endpoint_ClearStatusStage();
}
-
+
break;
case REQ_SetProtocol:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
@@ -199,26 +199,26 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
/* Set or clear the flag depending on what the host indicates that the current Protocol should be */
UsingReportProtocol = (USB_ControlRequest.wValue != 0);
}
-
+
break;
case REQ_SetIdle:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
- Endpoint_ClearSETUP();
+ Endpoint_ClearSETUP();
Endpoint_ClearStatusStage();
/* Get idle period in MSB, IdleCount must be multiplied by 4 to get number of milliseconds */
IdleCount = ((USB_ControlRequest.wValue & 0xFF00) >> 6);
}
-
+
break;
case REQ_GetIdle:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
- {
+ {
Endpoint_ClearSETUP();
-
+
/* Write the current idle duration to the host, must be divided by 4 before sent to host */
- Endpoint_Write_Byte(IdleCount >> 2);
+ Endpoint_Write_Byte(IdleCount >> 2);
Endpoint_ClearIN();
Endpoint_ClearStatusStage();
@@ -249,10 +249,10 @@ void CreateKeyboardReport(USB_KeyboardReport_Data_t* const ReportData)
/* Clear the report contents */
memset(ReportData, 0, sizeof(USB_KeyboardReport_Data_t));
-
+
/* Make sent key uppercase by indicating that the left shift key is pressed */
ReportData->Modifier = KEYBOARD_MODIFER_LEFTSHIFT;
-
+
if (JoyStatus_LCL & JOY_UP)
ReportData->KeyCode[UsedKeyCodes++] = 0x04; // A
else if (JoyStatus_LCL & JOY_DOWN)
@@ -265,7 +265,7 @@ void CreateKeyboardReport(USB_KeyboardReport_Data_t* const ReportData)
if (JoyStatus_LCL & JOY_PRESS)
ReportData->KeyCode[UsedKeyCodes++] = 0x08; // E
-
+
if (ButtonStatus_LCL & BUTTONS_BUTTON1)
ReportData->KeyCode[UsedKeyCodes++] = 0x09; // F
}
@@ -277,10 +277,10 @@ void CreateKeyboardReport(USB_KeyboardReport_Data_t* const ReportData)
void ProcessLEDReport(const uint8_t LEDReport)
{
uint8_t LEDMask = LEDS_LED2;
-
+
if (LEDReport & KEYBOARD_LED_NUMLOCK)
LEDMask |= LEDS_LED1;
-
+
if (LEDReport & KEYBOARD_LED_CAPSLOCK)
LEDMask |= LEDS_LED3;
@@ -297,23 +297,23 @@ void SendNextReport(void)
static USB_KeyboardReport_Data_t PrevKeyboardReportData;
USB_KeyboardReport_Data_t KeyboardReportData;
bool SendReport = true;
-
+
/* Create the next keyboard report for transmission to the host */
CreateKeyboardReport(&KeyboardReportData);
-
+
/* Check to see if the report data has changed - if so a report MUST be sent */
SendReport = (memcmp(&PrevKeyboardReportData, &KeyboardReportData, sizeof(USB_KeyboardReport_Data_t)) != 0);
-
+
/* Check if the idle period is set and has elapsed */
if ((IdleCount != HID_IDLE_CHANGESONLY) && (!(IdleMSRemaining)))
{
/* Reset the idle time remaining counter */
IdleMSRemaining = IdleCount;
-
+
/* Idle period is set and has elapsed, must send a report to the host */
SendReport = true;
}
-
+
/* Select the Keyboard Report Endpoint */
Endpoint_SelectEndpoint(KEYBOARD_IN_EPNUM);
@@ -322,10 +322,10 @@ void SendNextReport(void)
{
/* Save the current report data for later comparison to check for changes */
PrevKeyboardReportData = KeyboardReportData;
-
+
/* Write Keyboard Report Data */
Endpoint_Write_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData));
-
+
/* Finalize the stream transfer to send the last packet */
Endpoint_ClearIN();
}
@@ -361,10 +361,11 @@ void HID_Task(void)
/* Device must be connected and configured for the task to run */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
-
+
/* Send the next keypress report to the host */
SendNextReport();
-
+
/* Process the LED report sent from the host */
ReceiveNextReport();
}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 05:25:07 +0000