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path: root/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Host.c
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Diffstat (limited to 'digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Host.c')
-rw-r--r--digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Host.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Host.c b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Host.c
new file mode 100644
index 00000000..7acbffe7
--- /dev/null
+++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Host.c
@@ -0,0 +1,115 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+#include "USBMode.h"
+#if defined(USB_CAN_BE_HOST)
+
+#include "Host.h"
+
+uint8_t USB_Host_WaitMS(uint8_t MS)
+{
+ bool BusSuspended = USB_Host_IsBusSuspended();
+ uint8_t ErrorCode = HOST_WAITERROR_Successful;
+
+ USB_INT_Clear(USB_INT_HSOFI);
+ USB_Host_ResumeBus();
+
+ while (MS)
+ {
+ if (USB_INT_HasOccurred(USB_INT_HSOFI))
+ {
+ USB_INT_Clear(USB_INT_HSOFI);
+ MS--;
+ }
+
+ if ((USB_IsConnected == false) || (USB_CurrentMode == USB_MODE_DEVICE))
+ {
+ ErrorCode = HOST_WAITERROR_DeviceDisconnect;
+
+ break;
+ }
+
+ if (Pipe_IsError() == true)
+ {
+ Pipe_ClearError();
+ ErrorCode = HOST_WAITERROR_PipeError;
+
+ break;
+ }
+
+ if (Pipe_IsStalled() == true)
+ {
+ Pipe_ClearStall();
+ ErrorCode = HOST_WAITERROR_SetupStalled;
+
+ break;
+ }
+ }
+
+ if (BusSuspended)
+ USB_Host_SuspendBus();
+
+ return ErrorCode;
+}
+
+void USB_Host_ResetDevice(void)
+{
+ bool BusSuspended = USB_Host_IsBusSuspended();
+
+ USB_INT_Disable(USB_INT_DDISCI);
+
+ USB_Host_ResetBus();
+ while (!(USB_Host_IsResetBusDone()));
+
+ USB_INT_Clear(USB_INT_HSOFI);
+ USB_Host_ResumeBus();
+
+ for (uint8_t MSRem = 10; MSRem != 0; MSRem--)
+ {
+ /* Workaround for powerless-pullup devices. After a USB bus reset,
+ all disconnection interrupts are supressed while a USB frame is
+ looked for - if it is found within 10ms, the device is still
+ present. */
+
+ if (USB_INT_HasOccurred(USB_INT_HSOFI))
+ {
+ USB_INT_Clear(USB_INT_DDISCI);
+ break;
+ }
+
+ _delay_ms(1);
+ }
+
+ if (BusSuspended)
+ USB_Host_SuspendBus();
+
+ USB_INT_Enable(USB_INT_DDISCI);
+}
+#endif