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Error status LEDs shown when device endpoint configuration fails to complete.

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MIDI device demo no longer blocks if a note change event is sent while the endpoint is not ready.
This commit is contained in:
Dean Camera 2009-06-08 07:46:07 +00:00
parent ac70ddd0a1
commit e6881fd166
14 changed files with 235 additions and 143 deletions
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29
Demos/Device/LowLevel/MIDI/MIDI.c
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@ -90,17 +90,23 @@ void EVENT_USB_Disconnect(void)
*/
void EVENT_USB_ConfigurationChanged(void)
{
/* Setup MIDI stream endpoints */
Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,
ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,
ENDPOINT_BANK_SINGLE);
Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,
ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,
ENDPOINT_BANK_SINGLE);
/* Indicate USB connected and ready */
LEDs_SetAllLEDs(LEDMASK_USB_READY);
/* Setup MIDI stream endpoints */
if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,
ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,
ENDPOINT_BANK_SINGLE)))
{
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,
ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,
ENDPOINT_BANK_SINGLE)))
{
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
}
/** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them
@ -159,8 +165,9 @@ void MIDI_Task(void)
*/
void SendMIDINoteChange(const uint8_t Pitch, const bool OnOff, const uint8_t CableID, const uint8_t Channel)
{
/* Wait until endpoint ready for more data */
while (!(Endpoint_IsReadWriteAllowed()));
/* If endpoint ready for more data, abort */
if (!(Endpoint_IsReadWriteAllowed()))
return;
/* Check if the message should be a Note On or Note Off command */
uint8_t Command = ((OnOff)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);