Added start of a port of the core USB driver code to the AVR32 UC3B architecture.

[pub/lufa.git] / LUFA / Drivers / USB / Core / UC3B / Endpoint.c

diff --git a/LUFA/Drivers/USB/Core/UC3B/Endpoint.c b/LUFA/Drivers/USB/Core/UC3B/Endpoint.c
new file mode 100644 (file)
index 0000000..a479b43
--- /dev/null
+++ b/LUFA/Drivers/USB/Core/UC3B/Endpoint.c
@@ -0,0 +1,178 @@
+/*\r
+             LUFA Library\r
+     Copyright (C) Dean Camera, 2011.\r
+\r
+  dean [at] fourwalledcubicle [dot] com\r
+           www.lufa-lib.org\r
+*/\r
+\r
+/*\r
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this\r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in\r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting\r
+  documentation, and that the name of the author not be used in\r
+  advertising or publicity pertaining to distribution of the\r
+  software without specific, written prior permission.\r
+\r
+  The author disclaim all warranties with regard to this\r
+  software, including all implied warranties of merchantability\r
+  and fitness.  In no event shall the author be liable for any\r
+  special, indirect or consequential damages or any damages\r
+  whatsoever resulting from loss of use, data or profits, whether\r
+  in an action of contract, negligence or other tortious action,\r
+  arising out of or in connection with the use or performance of\r
+  this software.\r
+*/\r
+\r
+#define  __INCLUDE_FROM_USB_DRIVER\r
+#include "../USBMode.h"\r
+\r
+#if defined(USB_CAN_BE_DEVICE)\r
+\r
+#include "Endpoint.h"\r
+\r
+#if !defined(FIXED_CONTROL_ENDPOINT_SIZE)\r
+uint8_t USB_ControlEndpointSize = ENDPOINT_CONTROLEP_DEFAULT_SIZE;\r
+#endif\r
+\r
+uint8_t USB_SelectedEndpoint = ENDPOINT_CONTROLEP;\r
+\r
+bool Endpoint_ConfigureEndpoint_Prv(const uint8_t Number,\r
+                                    const uint32_t UECFGXData)\r
+{\r
+#if defined(CONTROL_ONLY_DEVICE) || defined(ORDERED_EP_CONFIG)\r
+       Endpoint_SelectEndpoint(Number);\r
+       Endpoint_EnableEndpoint();\r
+\r
+       *((uint32_t*)AVR32_USBB_UECFG0)[USB_SelectedEndpoint] = 0;\r
+       *((uint32_t*)AVR32_USBB_UECFG0)[USB_SelectedEndpoint] = UECFGXData;\r
+\r
+       return Endpoint_IsConfigured();\r
+#else  \r
+       for (uint8_t EPNum = Number; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++)\r
+       {\r
+               uint32_t UECFGXTemp;\r
+               uint32_t UEIENXTemp;\r
+\r
+               Endpoint_SelectEndpoint(EPNum);\r
+               \r
+               if (EPNum == Number)\r
+               {\r
+                       UECFGXTemp = UECFGXData;\r
+                       UEIENXTemp = 0;\r
+               }\r
+               else\r
+               {\r
+                       UECFGXTemp = *((uint32_t*)AVR32_USBB_UECFG0)[EPNum];\r
+                       UEIENXTemp = *((uint32_t*)AVR32_USBB_UEINT0)[EPNum];\r
+               }\r
+\r
+               if (!(UECFGXTemp & AVR32_USBB_ALLOC))\r
+                 continue;\r
+\r
+               Endpoint_DisableEndpoint();\r
+               *((uint32_t*)AVR32_USBB_UECFG0)[USB_SelectedEndpoint] &= ~AVR32_USBB_ALLOC;\r
+\r
+               Endpoint_EnableEndpoint();\r
+               *((uint32_t*)AVR32_USBB_UECFG0)[EPNum] = UECFGXTemp;\r
+               *((uint32_t*)AVR32_USBB_UEINT0)[EPNum] = UEINTXTemp;\r
+                       \r
+               if (!(Endpoint_IsConfigured()))\r
+                 return false;                 \r
+       }\r
+       \r
+       Endpoint_SelectEndpoint(Number);\r
+       return true;\r
+#endif\r
+}\r
+\r
+void Endpoint_ClearEndpoints(void)\r
+{\r
+       UEINT = 0;\r
+\r
+       for (uint8_t EPNum = 0; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++)\r
+       {\r
+               Endpoint_SelectEndpoint(EPNum);\r
+               UEIENX  = 0;\r
+               UEINTX  = 0;\r
+               UECFG1X = 0;\r
+               Endpoint_DisableEndpoint();\r
+       }\r
+}\r
+\r
+void Endpoint_ClearStatusStage(void)\r
+{\r
+       if (USB_ControlRequest.bmRequestType & REQDIR_DEVICETOHOST)\r
+       {\r
+               while (!(Endpoint_IsOUTReceived()))\r
+               {\r
+                       if (USB_DeviceState == DEVICE_STATE_Unattached)\r
+                         return;\r
+               }\r
+\r
+               Endpoint_ClearOUT();\r
+       }\r
+       else\r
+       {\r
+               while (!(Endpoint_IsINReady()))\r
+               {\r
+                       if (USB_DeviceState == DEVICE_STATE_Unattached)\r
+                         return;\r
+               }\r
+\r
+               Endpoint_ClearIN();\r
+       }\r
+}\r
+\r
+#if !defined(CONTROL_ONLY_DEVICE)\r
+uint8_t Endpoint_WaitUntilReady(void)\r
+{\r
+       #if (USB_STREAM_TIMEOUT_MS < 0xFF)\r
+       uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;\r
+       #else\r
+       uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;\r
+       #endif\r
+\r
+       uint16_t PreviousFrameNumber = USB_Device_GetFrameNumber();\r
+\r
+       for (;;)\r
+       {\r
+               if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN)\r
+               {\r
+                       if (Endpoint_IsINReady())\r
+                         return ENDPOINT_READYWAIT_NoError;\r
+               }\r
+               else\r
+               {\r
+                       if (Endpoint_IsOUTReceived())\r
+                         return ENDPOINT_READYWAIT_NoError;\r
+               }\r
+               \r
+               uint8_t USB_DeviceState_LCL = USB_DeviceState;\r
+\r
+               if (USB_DeviceState_LCL == DEVICE_STATE_Unattached)\r
+                 return ENDPOINT_READYWAIT_DeviceDisconnected;\r
+               else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended)\r
+                 return ENDPOINT_READYWAIT_BusSuspended;\r
+               else if (Endpoint_IsStalled())\r
+                 return ENDPOINT_READYWAIT_EndpointStalled;\r
+\r
+               uint16_t CurrentFrameNumber = USB_Device_GetFrameNumber();\r
+\r
+               if (CurrentFrameNumber != PreviousFrameNumber)\r
+               {\r
+                       PreviousFrameNumber = CurrentFrameNumber;\r
+\r
+                       if (!(TimeoutMSRem--))\r
+                         return ENDPOINT_READYWAIT_Timeout;\r
+               }\r
+       }\r
+}\r
+#endif\r
+\r
+#endif\r
+\r