diff options
Diffstat (limited to 'LUFA/Drivers/USB/Core/UC3/Host_UC3.c')
| -rw-r--r-- | LUFA/Drivers/USB/Core/UC3/Host_UC3.c | 584 |
1 files changed, 292 insertions, 292 deletions
diff --git a/LUFA/Drivers/USB/Core/UC3/Host_UC3.c b/LUFA/Drivers/USB/Core/UC3/Host_UC3.c index a56ef4819..55cd8f991 100644 --- a/LUFA/Drivers/USB/Core/UC3/Host_UC3.c +++ b/LUFA/Drivers/USB/Core/UC3/Host_UC3.c @@ -1,292 +1,292 @@ -/*
- 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_Host_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_Host_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);
-
- USB_HostState = HOST_STATE_Addressed;
-
- EVENT_USB_Host_DeviceEnumerationComplete();
- 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();
-
- USB_Host_ConfigurationNumber = 0;
-
- 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);
-}
-
-#endif
-
+/* + 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_Host_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_Host_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); + + USB_HostState = HOST_STATE_Addressed; + + EVENT_USB_Host_DeviceEnumerationComplete(); + 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(); + + USB_Host_ConfigurationNumber = 0; + + 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); +} + +#endif + |