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Corrected new Pipe_IsEndpointBound() function.

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Completed host CDC class driver enumeration code.
This commit is contained in:
Dean Camera 2009-07-26 10:45:33 +00:00
parent cbbd3d746a
commit 05fa6e0c43
4 changed files with 18 additions and 35 deletions
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8
Demos/Host/ClassDriver/CDCHost/CDCHost.c
View File

@ -54,6 +54,7 @@ USB_ClassInfo_CDC_Host_t VirtualSerial_CDC_Interface =
// Leave all state values to their defaults
}
};
/** Main program entry point. This routine configures the hardware required by the application, then
* starts the scheduler to run the application tasks.
@ -71,7 +72,9 @@ int main(void)
switch (USB_HostState)
{
case HOST_STATE_Addressed:
if (!(CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface)))
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface, 512) != CDC_ENUMERROR_NoError)
{
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
@ -88,9 +91,6 @@ int main(void)
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
USB_HostState = HOST_STATE_Ready;
break;
case HOST_STATE_Ready:
break;
}

37
LUFA/Drivers/USB/Class/Host/CDC.c
View File

@ -34,16 +34,16 @@
#define INCLUDE_FROM_CDC_CLASS_HOST_C
#include "CDC.h"
static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)
uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint16_t MaxConfigBufferSize)
{
uint8_t* ConfigDescriptorData;
uint16_t ConfigDescriptorSize;
uint8_t FoundEndpoints = 0;
if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)
return CDC_ENUMERROR_ControlError;
if (ConfigDescriptorSize > 512)
if (ConfigDescriptorSize > MaxConfigBufferSize)
return CDC_ENUMERROR_DescriptorTooLarge;
ConfigDescriptorData = alloca(ConfigDescriptorSize);
@ -64,10 +64,8 @@ static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInt
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_CDC_Host_NextInterfaceCDCDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Check to see if the control interface's notification pipe has been found, if so search for the data interface */
if (FoundEndpoints & CDC_FOUND_DATAPIPE_NOTIFICATION)
{
/* Get the next CDC data interface from the configuration descriptor (CDC class has two CDC interfaces) */
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
@ -179,12 +177,15 @@ static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescript
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
{
USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor,
USB_Descriptor_Endpoint_t)
USB_Descriptor_Endpoint_t);
uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK);
if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT))
return DESCRIPTOR_SEARCH_Found;
if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) &&
!(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress)))
{
return DESCRIPTOR_SEARCH_Found;
}
}
else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
@ -196,27 +197,7 @@ static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescript
void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)
{
uint8_t ErrorCode;
switch (USB_HostState)
{
case HOST_STATE_Addressed:
if ((ErrorCode = CDC_Host_ProcessConfigDescriptor(CDCInterfaceInfo)) != CDC_ENUMERROR_NoError)
{
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
}
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
}
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
USB_HostState = HOST_STATE_Ready;
break;
}
}
#endif

4
LUFA/Drivers/USB/Class/Host/CDC.h
View File

@ -136,12 +136,14 @@
/* Function Prototypes: */
#if defined(INCLUDE_FROM_CDC_CLASS_HOST_C)
static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
static uint8_t DComp_CDC_Host_NextCDCControlInterface(void* CurrentDescriptor);
static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* CurrentDescriptor);
static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescriptor);
#endif
uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint16_t MaxConfigBufferSize);
void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
void EVENT_CDC_Host_ControLineStateChanged(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);
uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo);

4
LUFA/Drivers/USB/LowLevel/Pipe.c
View File

@ -72,13 +72,13 @@ void Pipe_ClearPipes(void)
bool Pipe_IsEndpointBound(uint8_t EndpointAddress)
{
uint8_t PrevPipeNumber = Pipe_GetPipeNumber();
uint8_t PrevPipeNumber = Pipe_GetCurrentPipe();
for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
{
Pipe_SelectPipe(PNum);
if (Pipe_IsConfigured() && (Pipe_BoundEndpointAddress() == EndpointAddress))
if (Pipe_IsConfigured() && (Pipe_BoundEndpointNumber() == EndpointAddress))
return true;
}