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Removed all user pipe/endpoint interrupt APIs, added internal library support for interrupt driven control endpoints when in device mode by defining INTERRUPT_CONTROL_ENDPOINT token and passing it to the compiler via the -D switch.

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This commit is contained in:
Dean Camera 2009-05-14 10:07:08 +00:00
parent 0d5baf9bb3
commit 32f0f605ef
22 changed files with 48 additions and 342 deletions
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52
Demos/Device/GenericHID/GenericHID.c
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@ -39,10 +39,7 @@
/* Scheduler Task List */
TASK_LIST
{
#if !defined(INTERRUPT_CONTROL_ENDPOINT)
{ .Task = USB_USBTask , .TaskStatus = TASK_STOP },
#endif
{ .Task = USB_HID_Report , .TaskStatus = TASK_STOP },
};
@ -75,30 +72,13 @@ int main(void)
Scheduler_Start();
}
/** Event handler for the USB_Reset event. This fires when the USB interface is reset by the USB host, before the
* enumeration process begins, and enables the control endpoint interrupt so that control requests can be handled
* asynchronously when they arrive rather than when the control endpoint is polled manually.
*/
EVENT_HANDLER(USB_Reset)
{
#if defined(INTERRUPT_CONTROL_ENDPOINT)
/* Select the control endpoint */
Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
/* Enable the endpoint SETUP interrupt ISR for the control endpoint */
USB_INT_Enable(ENDPOINT_INT_SETUP);
#endif
}
/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and
* starts the library USB task to begin the enumeration and USB management process.
*/
EVENT_HANDLER(USB_Connect)
{
#if !defined(INTERRUPT_CONTROL_ENDPOINT)
/* Start USB management task */
Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);
#endif
/* Indicate USB enumerating */
UpdateStatus(Status_USBEnumerating);
@ -111,10 +91,7 @@ EVENT_HANDLER(USB_Disconnect)
{
/* Stop running HID reporting and USB management tasks */
Scheduler_SetTaskMode(USB_HID_Report, TASK_STOP);
#if !defined(INTERRUPT_CONTROL_ENDPOINT)
Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);
#endif
/* Indicate USB not ready */
UpdateStatus(Status_USBNotReady);
@ -298,32 +275,3 @@ TASK(USB_HID_Report)
}
}
}
#if defined(INTERRUPT_CONTROL_ENDPOINT)
/** ISR for the general Pipe/Endpoint interrupt vector. This ISR fires when an endpoint's status changes (such as
* a packet has been received) on an endpoint with its corresponding ISR enabling bits set. This is used to send
* HID packets to the host each time the HID interrupt endpoints polling period elapses, as managed by the USB
* controller.
*/
ISR(ENDPOINT_PIPE_vect, ISR_BLOCK)
{
/* Save previously selected endpoint before selecting a new endpoint */
uint8_t PrevSelectedEndpoint = Endpoint_GetCurrentEndpoint();
/* Check if the control endpoint has received a request */
if (Endpoint_HasEndpointInterrupted(ENDPOINT_CONTROLEP))
{
/* Clear the endpoint interrupt */
Endpoint_ClearEndpointInterrupt(ENDPOINT_CONTROLEP);
/* Process the control request */
USB_USBTask();
/* Handshake the endpoint setup interrupt - must be after the call to USB_USBTask() */
USB_INT_Clear(ENDPOINT_INT_SETUP);
}
/* Restore previously selected endpoint */
Endpoint_SelectEndpoint(PrevSelectedEndpoint);
}
#endif