+++ /dev/null
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2011.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2011 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 "../USBMode.h"
-
-#if defined(USB_CAN_BE_HOST)
-
-#define __INCLUDE_FROM_HOST_C
-#include "Host.h"
-
-void USB_Host_ProcessNextHostState(void)
-{
- uint8_t ErrorCode = HOST_ENUMERROR_NoError;
- uint8_t SubErrorCode = HOST_ENUMERROR_NoError;
-
- static uint16_t WaitMSRemaining;
- static uint8_t PostWaitState;
-
- switch (USB_HostState)
- {
- case HOST_STATE_WaitForDevice:
- if (WaitMSRemaining)
- {
- if ((SubErrorCode = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
- {
- USB_HostState = PostWaitState;
- ErrorCode = HOST_ENUMERROR_WaitStage;
- break;
- }
-
- if (!(--WaitMSRemaining))
- USB_HostState = PostWaitState;
- }
-
- break;
- case HOST_STATE_Powered:
- WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;
-
- USB_HostState = HOST_STATE_Powered_WaitForDeviceSettle;
- break;
- case HOST_STATE_Powered_WaitForDeviceSettle:
- if (WaitMSRemaining--)
- {
- _delay_ms(1);
- break;
- }
- else
- {
- USB_Host_VBUS_Manual_Off();
-
- USB_OTGPAD_On();
- USB_Host_VBUS_Auto_Enable();
- USB_Host_VBUS_Auto_On();
-
- USB_HostState = HOST_STATE_Powered_WaitForConnect;
- }
-
- break;
- case HOST_STATE_Powered_WaitForConnect:
- if (USB_INT_HasOccurred(USB_INT_DCONNI))
- {
- USB_INT_Clear(USB_INT_DCONNI);
- USB_INT_Clear(USB_INT_DDISCI);
-
- USB_INT_Clear(USB_INT_VBERRI);
- USB_INT_Enable(USB_INT_VBERRI);
-
- USB_Host_ResumeBus();
- Pipe_ClearPipes();
-
- HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Powered_DoReset);
- }
-
- break;
- case HOST_STATE_Powered_DoReset:
- USB_Host_ResetDevice();
-
- HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Powered_ConfigPipe);
- break;
- case HOST_STATE_Powered_ConfigPipe:
- Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
- PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
- PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE);
-
- if (!(Pipe_IsConfigured()))
- {
- ErrorCode = HOST_ENUMERROR_PipeConfigError;
- SubErrorCode = 0;
- break;
- }
-
- USB_HostState = HOST_STATE_Default;
- break;
- case HOST_STATE_Default:
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
- .bRequest = REQ_GetDescriptor,
- .wValue = (DTYPE_Device << 8),
- .wIndex = 0,
- .wLength = 8,
- };
-
- uint8_t DataBuffer[8];
-
- if ((SubErrorCode = USB_Host_SendControlRequest(DataBuffer)) != HOST_SENDCONTROL_Successful)
- {
- ErrorCode = HOST_ENUMERROR_ControlError;
- break;
- }
-
- USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, Endpoint0Size)];
-
- USB_Host_ResetDevice();
-
- HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Default_PostReset);
- break;
- case HOST_STATE_Default_PostReset:
- Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
- PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
- USB_ControlPipeSize, PIPE_BANK_SINGLE);
-
- if (!(Pipe_IsConfigured()))
- {
- ErrorCode = HOST_ENUMERROR_PipeConfigError;
- SubErrorCode = 0;
- break;
- }
-
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
- .bRequest = REQ_SetAddress,
- .wValue = USB_HOST_DEVICEADDRESS,
- .wIndex = 0,
- .wLength = 0,
- };
-
- if ((SubErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
- {
- ErrorCode = HOST_ENUMERROR_ControlError;
- break;
- }
-
- HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Default_PostAddressSet);
- break;
- case HOST_STATE_Default_PostAddressSet:
- USB_Host_SetDeviceAddress(USB_HOST_DEVICEADDRESS);
-
- EVENT_USB_Host_DeviceEnumerationComplete();
- USB_HostState = HOST_STATE_Addressed;
- break;
- }
-
- if ((ErrorCode != HOST_ENUMERROR_NoError) && (USB_HostState != HOST_STATE_Unattached))
- {
- EVENT_USB_Host_DeviceEnumerationFailed(ErrorCode, SubErrorCode);
-
- USB_Host_VBUS_Auto_Off();
-
- EVENT_USB_Host_DeviceUnattached();
-
- USB_ResetInterface();
- }
-}
-
-uint8_t USB_Host_WaitMS(uint8_t MS)
-{
- bool BusSuspended = USB_Host_IsBusSuspended();
- uint8_t ErrorCode = HOST_WAITERROR_Successful;
- bool HSOFIEnabled = USB_INT_IsEnabled(USB_INT_HSOFI);
-
- USB_INT_Disable(USB_INT_HSOFI);
- 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_HostState == HOST_STATE_Unattached) || (USB_CurrentMode != USB_MODE_Host))
- {
- 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();
-
- if (HSOFIEnabled)
- USB_INT_Enable(USB_INT_HSOFI);
-
- return ErrorCode;
-}
-
-static void USB_Host_ResetDevice(void)
-{
- bool BusSuspended = USB_Host_IsBusSuspended();
-
- USB_INT_Disable(USB_INT_DDISCI);
-
- USB_Host_ResetBus();
- while (!(USB_Host_IsBusResetComplete()));
- USB_Host_ResumeBus();
-
- bool HSOFIEnabled = USB_INT_IsEnabled(USB_INT_HSOFI);
-
- USB_INT_Disable(USB_INT_HSOFI);
- USB_INT_Clear(USB_INT_HSOFI);
-
- for (uint8_t MSRem = 10; MSRem != 0; MSRem--)
- {
- /* Workaround for powerless-pull-up devices. After a USB bus reset,
- all disconnection interrupts are suppressed 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_HSOFI);
- USB_INT_Clear(USB_INT_DDISCI);
- break;
- }
-
- _delay_ms(1);
- }
-
- if (HSOFIEnabled)
- USB_INT_Enable(USB_INT_HSOFI);
-
- if (BusSuspended)
- USB_Host_SuspendBus();
-
- USB_INT_Enable(USB_INT_DDISCI);
-}
-
-uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)
-{
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
- .bRequest = REQ_SetConfiguration,
- .wValue = ConfigNumber,
- .wIndex = 0,
- .wLength = 0,
- };
-
- Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
- return USB_Host_SendControlRequest(NULL);
-}
-
-uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)
-{
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
- .bRequest = REQ_GetDescriptor,
- .wValue = (DTYPE_Device << 8),
- .wIndex = 0,
- .wLength = sizeof(USB_Descriptor_Device_t),
- };
-
- Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
- return USB_Host_SendControlRequest(DeviceDescriptorPtr);
-}
-
-uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
- void* const Buffer,
- const uint8_t BufferLength)
-{
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
- .bRequest = REQ_GetDescriptor,
- .wValue = (DTYPE_String << 8) | Index,
- .wIndex = 0,
- .wLength = BufferLength,
- };
-
- Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
- return USB_Host_SendControlRequest(Buffer);
-}
-
-uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointNum)
-{
- USB_ControlRequest = (USB_Request_Header_t)
- {
- .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),
- .bRequest = REQ_ClearFeature,
- .wValue = FEATURE_SEL_EndpointHalt,
- .wIndex = EndpointNum,
- .wLength = 0,
- };
-
- Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
- return USB_Host_SendControlRequest(NULL);
-}
-
-#endif
-
projects / pub / lufa.git / blobdiff