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Diffstat (limited to 'LUFA/Drivers/USB/LowLevel/USBController.c')
-rw-r--r--LUFA/Drivers/USB/LowLevel/USBController.c271
1 files changed, 271 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/USBController.c b/LUFA/Drivers/USB/LowLevel/USBController.c
new file mode 100644
index 000000000..907e2bab0
--- /dev/null
+++ b/LUFA/Drivers/USB/LowLevel/USBController.c
@@ -0,0 +1,271 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ 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
+ 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.
+*/
+
+#define __INCLUDE_FROM_USB_DRIVER
+#include "USBController.h"
+
+#if (!defined(USB_HOST_ONLY) && !defined(USB_DEVICE_ONLY))
+volatile uint8_t USB_CurrentMode = USB_MODE_NONE;
+#endif
+
+#if !defined(USE_STATIC_OPTIONS)
+volatile uint8_t USB_Options;
+#endif
+
+void USB_Init(
+ #if defined(USB_CAN_BE_BOTH)
+ const uint8_t Mode
+ #endif
+
+ #if (defined(USB_CAN_BE_BOTH) && !defined(USE_STATIC_OPTIONS))
+ ,
+ #elif (!defined(USB_CAN_BE_BOTH) && defined(USE_STATIC_OPTIONS))
+ void
+ #endif
+
+ #if !defined(USE_STATIC_OPTIONS)
+ const uint8_t Options
+ #endif
+ )
+{
+ #if defined(USB_CAN_BE_BOTH)
+ USB_CurrentMode = Mode;
+ #endif
+
+ #if !defined(USE_STATIC_OPTIONS)
+ USB_Options = Options;
+ #endif
+
+ #if defined(USB_CAN_BE_HOST)
+ USB_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE;
+ #endif
+
+ #if defined(USB_DEVICE_ONLY) && (defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR))
+ UHWCON |= (1 << UIMOD);
+ #elif defined(USB_HOST_ONLY)
+ UHWCON &= ~(1 << UIMOD);
+ #elif defined(USB_CAN_BE_BOTH)
+ if (Mode == USB_MODE_UID)
+ {
+ UHWCON |= (1 << UIDE);
+
+ USB_INT_Clear(USB_INT_IDTI);
+ USB_INT_Enable(USB_INT_IDTI);
+
+ USB_CurrentMode = USB_GetUSBModeFromUID();
+ }
+ else if (Mode == USB_MODE_DEVICE)
+ {
+ UHWCON |= (1 << UIMOD);
+ }
+ else if (Mode == USB_MODE_HOST)
+ {
+ UHWCON &= ~(1 << UIMOD);
+ }
+ else
+ {
+ EVENT_USB_InitFailure(USB_INITERROR_NoUSBModeSpecified);
+ return;
+ }
+ #endif
+
+ USB_ResetInterface();
+
+ #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ USB_OTGPAD_On();
+ #endif
+
+ USB_IsInitialized = true;
+}
+
+void USB_ShutDown(void)
+{
+ USB_ResetInterface();
+ USB_Detach();
+ USB_Controller_Disable();
+
+ USB_INT_DisableAllInterrupts();
+ USB_INT_ClearAllInterrupts();
+
+ #if defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ UHWCON &= ~(1 << UIMOD);
+ #endif
+
+ if (!(USB_Options & USB_OPT_MANUAL_PLL))
+ USB_PLL_Off();
+
+ USB_REG_Off();
+
+ #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ USB_OTGPAD_Off();
+ #endif
+
+ #if defined(USB_CAN_BE_BOTH)
+ UHWCON &= ~(1 << UIDE);
+ #endif
+
+ USB_IsInitialized = false;
+
+ #if defined(USB_CAN_BE_BOTH)
+ USB_CurrentMode = USB_MODE_NONE;
+ #endif
+}
+
+void USB_ResetInterface(void)
+{
+ USB_INT_DisableAllInterrupts();
+ USB_INT_ClearAllInterrupts();
+
+ #if defined(USB_CAN_BE_HOST)
+ USB_HostState = HOST_STATE_Unattached;
+ #endif
+
+ #if defined(USB_CAN_BE_DEVICE)
+ USB_DeviceState = DEVICE_STATE_Unattached;
+ USB_ConfigurationNumber = 0;
+
+ #if !defined(NO_DEVICE_REMOTE_WAKEUP)
+ USB_RemoteWakeupEnabled = false;
+ #endif
+
+ #if !defined(NO_DEVICE_SELF_POWER)
+ USB_CurrentlySelfPowered = false;
+ #endif
+ #endif
+
+ if (!(USB_Options & USB_OPT_MANUAL_PLL))
+ {
+ #if defined(USB_SERIES_4_AVR)
+ PLLFRQ = ((1 << PLLUSB) | (1 << PDIV3) | (1 << PDIV1));
+ #endif
+
+ USB_PLL_On();
+ while (!(USB_PLL_IsReady()));
+ }
+
+ USB_Controller_Reset();
+
+ #if defined(USB_CAN_BE_BOTH)
+ if (UHWCON & (1 << UIDE))
+ {
+ USB_INT_Clear(USB_INT_IDTI);
+ USB_INT_Enable(USB_INT_IDTI);
+ USB_CurrentMode = USB_GetUSBModeFromUID();
+ }
+ #endif
+
+ if (!(USB_Options & USB_OPT_REG_DISABLED))
+ USB_REG_On();
+ else
+ USB_REG_Off();
+
+ USB_CLK_Unfreeze();
+
+ #if (defined(USB_CAN_BE_DEVICE) && (defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)))
+ if (USB_CurrentMode == USB_MODE_DEVICE)
+ {
+ if (USB_Options & USB_DEVICE_OPT_LOWSPEED)
+ USB_Device_SetLowSpeed();
+ else
+ USB_Device_SetFullSpeed();
+ }
+ #endif
+
+ #if (defined(USB_CAN_BE_DEVICE) && !defined(FIXED_CONTROL_ENDPOINT_SIZE))
+ if (USB_CurrentMode == USB_MODE_DEVICE)
+ {
+ USB_Descriptor_Device_t* DeviceDescriptorPtr;
+
+ if (CALLBACK_USB_GetDescriptor((DTYPE_Device << 8), 0, (void*)&DeviceDescriptorPtr) != NO_DESCRIPTOR)
+ {
+ #if defined(USE_RAM_DESCRIPTORS)
+ USB_ControlEndpointSize = DeviceDescriptorPtr->Endpoint0Size;
+ #elif defined(USE_EEPROM_DESCRIPTORS)
+ USB_ControlEndpointSize = eeprom_read_byte(&DeviceDescriptorPtr->Endpoint0Size);
+ #else
+ USB_ControlEndpointSize = pgm_read_byte(&DeviceDescriptorPtr->Endpoint0Size);
+ #endif
+ }
+ }
+ #endif
+
+ USB_Attach();
+
+ #if defined(USB_DEVICE_ONLY)
+ USB_INT_Clear(USB_INT_SUSPEND);
+ USB_INT_Enable(USB_INT_SUSPEND);
+ USB_INT_Clear(USB_INT_EORSTI);
+ USB_INT_Enable(USB_INT_EORSTI);
+
+ #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ USB_INT_Enable(USB_INT_VBUS);
+ #endif
+ #elif defined(USB_HOST_ONLY)
+ USB_Host_HostMode_On();
+
+ USB_Host_VBUS_Auto_Off();
+ USB_OTGPAD_Off();
+
+ USB_Host_VBUS_Manual_Enable();
+ USB_Host_VBUS_Manual_On();
+
+ USB_INT_Enable(USB_INT_SRPI);
+ USB_INT_Enable(USB_INT_BCERRI);
+ #else
+ if (USB_CurrentMode == USB_MODE_DEVICE)
+ {
+ USB_INT_Clear(USB_INT_SUSPEND);
+ USB_INT_Enable(USB_INT_SUSPEND);
+ USB_INT_Clear(USB_INT_EORSTI);
+ USB_INT_Enable(USB_INT_EORSTI);
+
+ #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ USB_INT_Enable(USB_INT_VBUS);
+ #endif
+
+ #if defined(CONTROL_ONLY_DEVICE)
+ UENUM = ENDPOINT_CONTROLEP;
+ #endif
+ }
+ else if (USB_CurrentMode == USB_MODE_HOST)
+ {
+ USB_Host_HostMode_On();
+
+ USB_Host_VBUS_Auto_Off();
+ USB_OTGPAD_Off();
+
+ USB_Host_VBUS_Manual_Enable();
+ USB_Host_VBUS_Manual_On();
+
+ USB_INT_Enable(USB_INT_SRPI);
+ USB_INT_Enable(USB_INT_BCERRI);
+ }
+ #endif
+}
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