/*******************************************************************
* Function: void USBCBInitEP(uint8_t ConfigurationIndex)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function is called when the device becomes
* initialized, which occurs after the host sends a
* SET_CONFIGURATION request. This
* callback function should initialize the endpoints
* for the device's usage according to the current
* configuration.
*
* Note: If the host ever "unconfigures" the device, it will
* set the configuration to '0'. In this case, this
* callback gets called with ConfigurationIndex == 0, where
* the firmware should disable all non-EP0 endpoints (until
* the next non-zero SET_CONFIGURATION request is received,
* which will cause this callback to execute again).
*******************************************************************/
void USBCBInitEP(uint8_t ConfigurationIndex)
{
//Check what configuration "index" the host has requested us to select.
//Configuration index 0 is special and represents that the device should be
//un-configured. However, when the host sets the confguration (with index
//matching the valid/implemenented configuration from the configuration descriptor),
//the firmware should enable the application endpoints associated with that
//configuration, and (re)initialize all application state variables associated
//with the USB application endpoints operation.
if(ConfigurationIndex == 1) //This application only implements one configuration, with index == 1.
{
//The host sent us a non-zero set configuration index. In this
//case we should prepare the application endpoints to be ready
//to use, and to (re-)initialize any application variables associated
//with the endpoints.
HIDInitEP();
//(Re-)Initialize the application variables associated with the USB interface
UserInit(); // See BootPIC[xxxx].c. Initializes the bootloader firmware state machine variables.
}
//else the host set the configuration back to 0 (indicating unconfigured), or
//to some higher (non-implemented value). In either case, we don't need to
//do anything specifically, unless the application requires some kind of
//"safe shutdown" code to execute after the host has deconfigured the device.
}
/******************************************************************************
* Function: void USBStdSetCfgHandler(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This routine first disables all endpoints by clearing
* UEP registers. It then configures (initializes) endpoints
* specified in the modifiable section.
*
* Note: None
*****************************************************************************/
void USBStdSetCfgHandler(void)
{
ctrl_trf_session_owner = MUID_USB9;
mDisableEP1to7(); // See usbdrv.h
ClearArray((byte*)&usb_alt_intf,MAX_NUM_INT);
usb_active_cfg = SetupPkt.bCfgValue;
if(SetupPkt.bCfgValue == 0)
usb_device_state = ADDRESS_STATE;
else
{
usb_device_state = CONFIGURED_STATE;
/* Modifiable Section */
#if defined(USB_USE_HID) // See autofiles\usbcfg.h
HIDInitEP();
#endif
/* End modifiable section */
}//end if(SetupPkt.bcfgValue == 0)
}//end USBStdSetCfgHandler
