+++ /dev/null
-/*\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_HOST)\r
-\r
-#define __INCLUDE_FROM_HOST_C\r
-#include "Host.h"\r
-\r
-void USB_Host_ProcessNextHostState(void)\r
-{\r
- uint8_t ErrorCode = HOST_ENUMERROR_NoError;\r
- uint8_t SubErrorCode = HOST_ENUMERROR_NoError;\r
-\r
- static uint16_t WaitMSRemaining;\r
- static uint8_t PostWaitState;\r
-\r
- switch (USB_HostState)\r
- {\r
- case HOST_STATE_WaitForDevice:\r
- if (WaitMSRemaining)\r
- {\r
- if ((SubErrorCode = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)\r
- {\r
- USB_HostState = PostWaitState;\r
- ErrorCode = HOST_ENUMERROR_WaitStage;\r
- break;\r
- }\r
-\r
- if (!(--WaitMSRemaining))\r
- USB_HostState = PostWaitState;\r
- }\r
-\r
- break;\r
- case HOST_STATE_Powered:\r
- WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;\r
-\r
- USB_HostState = HOST_STATE_Powered_WaitForDeviceSettle;\r
- break;\r
- case HOST_STATE_Powered_WaitForDeviceSettle:\r
- if (WaitMSRemaining--)\r
- {\r
- _delay_ms(1);\r
- break;\r
- }\r
- else\r
- {\r
- USB_Host_VBUS_Manual_Off();\r
-\r
- USB_OTGPAD_On();\r
- USB_Host_VBUS_Auto_Enable();\r
- USB_Host_VBUS_Auto_On();\r
-\r
- USB_HostState = HOST_STATE_Powered_WaitForConnect;\r
- }\r
-\r
- break;\r
- case HOST_STATE_Powered_WaitForConnect:\r
- if (USB_INT_HasOccurred(USB_INT_DCONNI))\r
- {\r
- USB_INT_Clear(USB_INT_DCONNI);\r
- USB_INT_Clear(USB_INT_DDISCI);\r
-\r
- USB_INT_Clear(USB_INT_VBERRI);\r
- USB_INT_Enable(USB_INT_VBERRI);\r
-\r
- USB_Host_ResumeBus();\r
- Pipe_ClearPipes();\r
-\r
- HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Powered_DoReset);\r
- }\r
-\r
- break;\r
- case HOST_STATE_Powered_DoReset:\r
- USB_Host_ResetDevice();\r
-\r
- HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Powered_ConfigPipe);\r
- break;\r
- case HOST_STATE_Powered_ConfigPipe:\r
- Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,\r
- PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,\r
- PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE);\r
-\r
- if (!(Pipe_IsConfigured()))\r
- {\r
- ErrorCode = HOST_ENUMERROR_PipeConfigError;\r
- SubErrorCode = 0;\r
- break;\r
- }\r
-\r
- USB_HostState = HOST_STATE_Default;\r
- break;\r
- case HOST_STATE_Default:\r
- USB_ControlRequest = (USB_Request_Header_t)\r
- {\r
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),\r
- .bRequest = REQ_GetDescriptor,\r
- .wValue = (DTYPE_Device << 8),\r
- .wIndex = 0,\r
- .wLength = 8,\r
- };\r
-\r
- uint8_t DataBuffer[8];\r
-\r
- if ((SubErrorCode = USB_Host_SendControlRequest(DataBuffer)) != HOST_SENDCONTROL_Successful)\r
- {\r
- ErrorCode = HOST_ENUMERROR_ControlError;\r
- break;\r
- }\r
-\r
- USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, Endpoint0Size)];\r
-\r
- USB_Host_ResetDevice();\r
-\r
- HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Default_PostReset);\r
- break;\r
- case HOST_STATE_Default_PostReset:\r
- Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,\r
- PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,\r
- USB_ControlPipeSize, PIPE_BANK_SINGLE);\r
-\r
- if (!(Pipe_IsConfigured()))\r
- {\r
- ErrorCode = HOST_ENUMERROR_PipeConfigError;\r
- SubErrorCode = 0;\r
- break;\r
- }\r
-\r
- USB_ControlRequest = (USB_Request_Header_t)\r
- {\r
- .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),\r
- .bRequest = REQ_SetAddress,\r
- .wValue = USB_HOST_DEVICEADDRESS,\r
- .wIndex = 0,\r
- .wLength = 0,\r
- };\r
-\r
- if ((SubErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)\r
- {\r
- ErrorCode = HOST_ENUMERROR_ControlError;\r
- break;\r
- }\r
-\r
- HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Default_PostAddressSet);\r
- break;\r
- case HOST_STATE_Default_PostAddressSet:\r
- USB_Host_SetDeviceAddress(USB_HOST_DEVICEADDRESS);\r
-\r
- EVENT_USB_Host_DeviceEnumerationComplete();\r
- USB_HostState = HOST_STATE_Addressed;\r
- break;\r
- }\r
-\r
- if ((ErrorCode != HOST_ENUMERROR_NoError) && (USB_HostState != HOST_STATE_Unattached))\r
- {\r
- EVENT_USB_Host_DeviceEnumerationFailed(ErrorCode, SubErrorCode);\r
-\r
- USB_Host_VBUS_Auto_Off();\r
-\r
- EVENT_USB_Host_DeviceUnattached();\r
-\r
- USB_ResetInterface();\r
- }\r
-}\r
-\r
-uint8_t USB_Host_WaitMS(uint8_t MS)\r
-{\r
- bool BusSuspended = USB_Host_IsBusSuspended();\r
- uint8_t ErrorCode = HOST_WAITERROR_Successful;\r
- bool HSOFIEnabled = USB_INT_IsEnabled(USB_INT_HSOFI);\r
-\r
- USB_INT_Disable(USB_INT_HSOFI);\r
- USB_INT_Clear(USB_INT_HSOFI);\r
-\r
- USB_Host_ResumeBus();\r
-\r
- while (MS)\r
- {\r
- if (USB_INT_HasOccurred(USB_INT_HSOFI))\r
- {\r
- USB_INT_Clear(USB_INT_HSOFI);\r
- MS--;\r
- }\r
-\r
- if ((USB_HostState == HOST_STATE_Unattached) || (USB_CurrentMode != USB_MODE_Host))\r
- {\r
- ErrorCode = HOST_WAITERROR_DeviceDisconnect;\r
-\r
- break;\r
- }\r
-\r
- if (Pipe_IsError() == true)\r
- {\r
- Pipe_ClearError();\r
- ErrorCode = HOST_WAITERROR_PipeError;\r
-\r
- break;\r
- }\r
-\r
- if (Pipe_IsStalled() == true)\r
- {\r
- Pipe_ClearStall();\r
- ErrorCode = HOST_WAITERROR_SetupStalled;\r
-\r
- break;\r
- }\r
- }\r
-\r
- if (BusSuspended)\r
- USB_Host_SuspendBus();\r
-\r
- if (HSOFIEnabled)\r
- USB_INT_Enable(USB_INT_HSOFI);\r
-\r
- return ErrorCode;\r
-}\r
-\r
-static void USB_Host_ResetDevice(void)\r
-{\r
- bool BusSuspended = USB_Host_IsBusSuspended();\r
-\r
- USB_INT_Disable(USB_INT_DDISCI);\r
-\r
- USB_Host_ResetBus();\r
- while (!(USB_Host_IsBusResetComplete()));\r
- USB_Host_ResumeBus();\r
-\r
- bool HSOFIEnabled = USB_INT_IsEnabled(USB_INT_HSOFI);\r
-\r
- USB_INT_Disable(USB_INT_HSOFI);\r
- USB_INT_Clear(USB_INT_HSOFI);\r
-\r
- for (uint8_t MSRem = 10; MSRem != 0; MSRem--)\r
- {\r
- /* Workaround for powerless-pull-up devices. After a USB bus reset,\r
- all disconnection interrupts are suppressed while a USB frame is\r
- looked for - if it is found within 10ms, the device is still\r
- present. */\r
-\r
- if (USB_INT_HasOccurred(USB_INT_HSOFI))\r
- {\r
- USB_INT_Clear(USB_INT_HSOFI);\r
- USB_INT_Clear(USB_INT_DDISCI);\r
- break;\r
- }\r
-\r
- _delay_ms(1);\r
- }\r
-\r
- if (HSOFIEnabled)\r
- USB_INT_Enable(USB_INT_HSOFI);\r
-\r
- if (BusSuspended)\r
- USB_Host_SuspendBus();\r
-\r
- USB_INT_Enable(USB_INT_DDISCI);\r
-}\r
-\r
-uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)\r
-{\r
- USB_ControlRequest = (USB_Request_Header_t)\r
- {\r
- .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),\r
- .bRequest = REQ_SetConfiguration,\r
- .wValue = ConfigNumber,\r
- .wIndex = 0,\r
- .wLength = 0,\r
- };\r
-\r
- Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
-\r
- return USB_Host_SendControlRequest(NULL);\r
-}\r
-\r
-uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)\r
-{\r
- USB_ControlRequest = (USB_Request_Header_t)\r
- {\r
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),\r
- .bRequest = REQ_GetDescriptor,\r
- .wValue = (DTYPE_Device << 8),\r
- .wIndex = 0,\r
- .wLength = sizeof(USB_Descriptor_Device_t),\r
- };\r
-\r
- Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
-\r
- return USB_Host_SendControlRequest(DeviceDescriptorPtr);\r
-}\r
-\r
-uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,\r
- void* const Buffer,\r
- const uint8_t BufferLength)\r
-{\r
- USB_ControlRequest = (USB_Request_Header_t)\r
- {\r
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),\r
- .bRequest = REQ_GetDescriptor,\r
- .wValue = (DTYPE_String << 8) | Index,\r
- .wIndex = 0,\r
- .wLength = BufferLength,\r
- };\r
-\r
- Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
-\r
- return USB_Host_SendControlRequest(Buffer);\r
-}\r
-\r
-uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointNum)\r
-{\r
- USB_ControlRequest = (USB_Request_Header_t)\r
- {\r
- .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),\r
- .bRequest = REQ_ClearFeature,\r
- .wValue = FEATURE_SEL_EndpointHalt,\r
- .wIndex = EndpointNum,\r
- .wLength = 0,\r
- };\r
-\r
- Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
-\r
- return USB_Host_SendControlRequest(NULL);\r
-}\r
-\r
-#endif\r
-\r
projects / pub / lufa.git / blobdiff