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Moved USB Host state machine code out from USBTask.c and into Host.c, where it more properly belongs.

This commit is contained in:
Dean Camera 2009-05-13 14:13:57 +00:00
parent da007db18d
commit 4904b10ef6
8 changed files with 182 additions and 176 deletions
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2
Demos/Device/Keyboard/Keyboard.c
View File

@ -44,9 +44,7 @@ TASK_LIST
{ .Task = USB_USBTask , .TaskStatus = TASK_STOP },
#endif
#if !defined(INTERRUPT_DATA_ENDPOINT)
{ .Task = USB_Keyboard_Report , .TaskStatus = TASK_STOP },
#endif
};
/* Global Variables */

2
LUFA/Drivers/USB/HighLevel/Events.h
View File

@ -398,7 +398,7 @@
/* Function Prototypes: */
#if defined(INCLUDE_FROM_EVENTS_C)
void USB_Event_Stub (void) ATTR_CONST;
void USB_Event_Stub(void) ATTR_CONST;
#if defined(USB_FULL_CONTROLLER) || defined(USB_MODIFIED_FULL_CONTROLLER)
ALIAS_STUB(USB_VBUSChange);

171
LUFA/Drivers/USB/HighLevel/USBTask.c
View File

@ -81,178 +81,11 @@ static void USB_DeviceTask(void)
#if defined(USB_CAN_BE_HOST)
static void USB_HostTask(void)
{
uint8_t ErrorCode = HOST_ENUMERROR_NoError;
uint8_t SubErrorCode = HOST_ENUMERROR_NoError;
uint8_t PrevPipe = Pipe_GetCurrentPipe();
uint8_t PrevPipe = Pipe_GetCurrentPipe();
static uint16_t WaitMSRemaining;
static uint8_t PostWaitState;
Pipe_SelectPipe(PIPE_CONTROLPIPE);
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;
}
WaitMSRemaining--;
}
else
{
USB_HostState = PostWaitState;
}
break;
case HOST_STATE_Attached:
WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;
USB_HostState = HOST_STATE_Attached_WaitForDeviceSettle;
break;
case HOST_STATE_Attached_WaitForDeviceSettle:
_delay_ms(1);
if (!(WaitMSRemaining--))
{
USB_Host_VBUS_Manual_Off();
USB_OTGPAD_On();
USB_Host_VBUS_Auto_Enable();
USB_Host_VBUS_Auto_On();
USB_HostState = HOST_STATE_Attached_WaitForConnect;
}
break;
case HOST_STATE_Attached_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_IsConnected = true;
RAISE_EVENT(USB_Connect);
USB_Host_ResumeBus();
Pipe_ClearPipes();
HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Attached_DoReset);
}
break;
case HOST_STATE_Attached_DoReset:
USB_Host_ResetDevice();
HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Powered);
break;
case HOST_STATE_Powered:
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;
}
#if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)
USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, Endpoint0Size)];
#else
USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, bMaxPacketSize0)];
#endif
USB_Host_ResetDevice();
HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Default_PostReset);
break;
case HOST_STATE_Default_PostReset:
Pipe_DisablePipe();
Pipe_DeallocateMemory();
Pipe_ResetPipe(PIPE_CONTROLPIPE);
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;
}
Pipe_SetInfiniteINRequests();
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);
RAISE_EVENT(USB_DeviceEnumerationComplete);
USB_HostState = HOST_STATE_Addressed;
break;
}
if ((ErrorCode != HOST_ENUMERROR_NoError) && (USB_HostState != HOST_STATE_Unattached))
{
RAISE_EVENT(USB_DeviceEnumerationFailed, ErrorCode, SubErrorCode);
USB_Host_VBUS_Auto_Off();
RAISE_EVENT(USB_DeviceUnattached);
if (USB_IsConnected)
RAISE_EVENT(USB_Disconnect);
USB_ResetInterface();
}
USB_Host_ProcessNextHostState();
Pipe_SelectPipe(PrevPipe);
}

173
LUFA/Drivers/USB/LowLevel/Host.c
View File

@ -32,8 +32,179 @@
#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_Attached:
WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;
USB_HostState = HOST_STATE_Attached_WaitForDeviceSettle;
break;
case HOST_STATE_Attached_WaitForDeviceSettle:
_delay_ms(1);
if (!(WaitMSRemaining--))
{
USB_Host_VBUS_Manual_Off();
USB_OTGPAD_On();
USB_Host_VBUS_Auto_Enable();
USB_Host_VBUS_Auto_On();
USB_HostState = HOST_STATE_Attached_WaitForConnect;
}
break;
case HOST_STATE_Attached_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_IsConnected = true;
RAISE_EVENT(USB_Connect);
USB_Host_ResumeBus();
Pipe_ClearPipes();
HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Attached_DoReset);
}
break;
case HOST_STATE_Attached_DoReset:
USB_Host_ResetDevice();
HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Powered);
break;
case HOST_STATE_Powered:
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;
}
#if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)
USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, Endpoint0Size)];
#else
USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, bMaxPacketSize0)];
#endif
USB_Host_ResetDevice();
HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Default_PostReset);
break;
case HOST_STATE_Default_PostReset:
Pipe_DisablePipe();
Pipe_DeallocateMemory();
Pipe_ResetPipe(PIPE_CONTROLPIPE);
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;
}
Pipe_SetInfiniteINRequests();
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);
RAISE_EVENT(USB_DeviceEnumerationComplete);
USB_HostState = HOST_STATE_Addressed;
break;
}
if ((ErrorCode != HOST_ENUMERROR_NoError) && (USB_HostState != HOST_STATE_Unattached))
{
RAISE_EVENT(USB_DeviceEnumerationFailed, ErrorCode, SubErrorCode);
USB_Host_VBUS_Auto_Off();
RAISE_EVENT(USB_DeviceUnattached);
if (USB_IsConnected)
RAISE_EVENT(USB_Disconnect);
USB_ResetInterface();
}
}
uint8_t USB_Host_WaitMS(uint8_t MS)
{
bool BusSuspended = USB_Host_IsBusSuspended();
@ -80,7 +251,7 @@ uint8_t USB_Host_WaitMS(uint8_t MS)
return ErrorCode;
}
void USB_Host_ResetDevice(void)
static void USB_Host_ResetDevice(void)
{
bool BusSuspended = USB_Host_IsBusSuspended();

6
LUFA/Drivers/USB/LowLevel/Host.h
View File

@ -265,8 +265,12 @@
};
/* Function Prototypes: */
void USB_Host_ProcessNextHostState(void);
uint8_t USB_Host_WaitMS(uint8_t MS);
void USB_Host_ResetDevice(void);
#if defined(INCLUDE_FROM_HOST_C)
static void USB_Host_ResetDevice(void);
#endif
#endif
/* Disable C linkage for C++ Compilers: */

2
LUFA/Drivers/USB/LowLevel/LowLevel.h
View File

@ -359,7 +359,7 @@
/* Inline Functions: */
#if defined(USB_CAN_BE_BOTH)
static inline uint8_t USB_GetUSBModeFromUID(void) ATTR_WARN_UNUSED_RESULT;
static inline uint8_t USB_GetUSBModeFromUID(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint8_t USB_GetUSBModeFromUID(void)
{
if (USBSTA & (1 << ID))

1
LUFA/Drivers/USB/LowLevel/OTG.h
View File

@ -106,7 +106,6 @@
*/
static inline void USB_OTG_Dev_InitiateSRP(uint8_t SRPTypeMask);
#else
#define USB_OTG_Device_RequestHNP() MACROS{ OTGCON |= (1 << HNPREQ); }MACROE
#define USB_OTG_Device_CancelHNPRequest() MACROS{ OTGCON &= ~(1 << HNPREQ); }MACROE

1
LUFA/LUFAPoweredProjects.txt
View File

@ -28,4 +28,5 @@
* - SEGA Megadrive/Genesis Development Cartridge: http://www.spritesmind.net/_GenDev/forum/viewtopic.php?t=464
* - CAMTRIG, a remote Camera Trigger device: http://code.astraw.com/projects/motmot/camtrig
* - Opendous-JTAG, an open source JTAG device: http://code.google.com/p/opendous-jtag/
* - Openkubus, an open source hardware-based authentication dongle: http://code.google.com/p/openkubus/
*/