86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
#include "usb.h"
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#include "usb_device_hid.h"
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#include "bootloader.h"
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/*******************************************************************
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* Function: bool USER_USB_CALLBACK_EVENT_HANDLER(
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* USB_EVENT event, void *pdata, uint16_t size)
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*
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* PreCondition: None
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*
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* Input: USB_EVENT event - the type of event
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* void *pdata - pointer to the event data
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* uint16_t size - size of the event data
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*
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* Output: None
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*
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* Side Effects: None
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*
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* Overview: This function is called from the USB stack to
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* notify a user application that a USB event
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* occured. This callback is in interrupt context
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* when the USB_INTERRUPT option is selected.
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*
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* Note: None
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*******************************************************************/
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bool USER_USB_CALLBACK_EVENT_HANDLER(USB_EVENT event, void *pdata, uint16_t size)
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{
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switch( (int) event )
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{
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case EVENT_TRANSFER:
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break;
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case EVENT_SOF:
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break;
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case EVENT_SUSPEND:
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//Call the hardware platform specific handler for suspend events for
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//possible further action (like optionally going reconfiguring the application
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//for lower power states and going to sleep during the suspend event). This
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//would normally be done in USB compliant bus powered applications, although
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//no further processing is needed for purely self powered applications that
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//don't consume power from the host.
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//asm("SLEEP"); // sleep right now, execution starts on next line when woken up
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// we have been woken up. if the watchdog was the cause go back to sleep
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//while ((PIR2bits.USBIF == 0) && (RCONbits.TO == 0))
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//{
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// asm("SLEEP");
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//}
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break;
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case EVENT_RESUME:
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// restore any hardware states (i.e. IO pin config) that were changed on suspend
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break;
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case EVENT_CONFIGURED:
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// When the device is configured, we should (re)initialize our state variables
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UserInit();
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break;
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case EVENT_SET_DESCRIPTOR:
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break;
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case EVENT_EP0_REQUEST:
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/* We have received a non-standard USB request. The HID driver
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* needs to check to see if the request was for it. */
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USBCheckHIDRequest();
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break;
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case EVENT_BUS_ERROR:
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break;
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case EVENT_TRANSFER_TERMINATED:
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break;
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default:
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break;
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}
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return true;
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}
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/*******************************************************************************
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End of File
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*/
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