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Added new USB_DeviceState variable to keep track of the current Device mode USB state.

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Added new Endpoint_ClearStatusStage() convenience function to assist with the status stages of control transfers.

Removed vague USB_IsConnected global - test USB_DeviceState or USB_HostState explicitly to gain previous functionality.

Removed USB_IsSuspended global - test USB_DeviceState against DEVICE_STATE_Suspended instead.

Fixed possible enumeration errors from spinloops which may fail to exit if the USB connection is severed before the exit condition becomes true.
This commit is contained in:
Dean Camera 2009-07-21 13:31:21 +00:00
parent 44179abcf8
commit e071f3897a
58 changed files with 666 additions and 463 deletions
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14
Demos/Device/LowLevel/GenericHID/GenericHID.c
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@ -148,7 +148,11 @@ void EVENT_USB_UnhandledControlPacket(void)
Endpoint_ClearSETUP();
/* Wait until the generic report has been sent by the host */
while (!(Endpoint_IsOUTReceived()));
while (!(Endpoint_IsOUTReceived()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
Endpoint_Read_Control_Stream_LE(&GenericData, sizeof(GenericData));
@ -158,7 +162,11 @@ void EVENT_USB_UnhandledControlPacket(void)
Endpoint_ClearOUT();
/* Wait until the host is ready to receive the request confirmation */
while (!(Endpoint_IsINReady()));
while (!(Endpoint_IsINReady()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
/* Handshake the request by sending an empty IN packet */
Endpoint_ClearIN();
@ -203,7 +211,7 @@ void CreateGenericHIDReport(uint8_t* DataArray)
void HID_Task(void)
{
/* Device must be connected and configured for the task to run */
if (!(USB_IsConnected) || !(USB_ConfigurationNumber))
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
Endpoint_SelectEndpoint(GENERIC_OUT_EPNUM);