void TSI_Calibrate(TSI_Type *base, tsi_calibration_data_t *calBuff)
{
assert(calBuff != NULL);
uint8_t i = 0U;
bool is_int_enabled = false;
if (base->GENCS & TSI_GENCS_TSIIEN_MASK)
{
is_int_enabled = true;
TSI_DisableInterrupts(base, kTSI_GlobalInterruptEnable);
}
for (i = 0U; i < FSL_FEATURE_TSI_CHANNEL_COUNT; i++)
{
TSI_SetMeasuredChannelNumber(base, i);
TSI_StartSoftwareTrigger(base);
while (!(TSI_GetStatusFlags(base) & kTSI_EndOfScanFlag))
{
}
calBuff->calibratedData[i] = TSI_GetCounter(base);
TSI_ClearStatusFlags(base, kTSI_EndOfScanFlag);
}
if (is_int_enabled)
{
TSI_EnableInterrupts(base, kTSI_GlobalInterruptEnable);
}
}
/* Update mouse pointer location. */
static usb_status_t USB_DeviceHidMouseAction(void)
{
if(Ax > SENSITIVITY)
{
if(xDir==1)
{
g_UsbDeviceHidMouse.buffer[1] = 2U;
}else{
g_UsbDeviceHidMouse.buffer[1] = (uint8_t)-2U;
}
}else{
g_UsbDeviceHidMouse.buffer[1] = 0;
}
if(Ay > SENSITIVITY)
{
if(yDir==1)
{
g_UsbDeviceHidMouse.buffer[2] = 2U;
}else{
g_UsbDeviceHidMouse.buffer[2] = (uint8_t)-2U;
}
}else{
g_UsbDeviceHidMouse.buffer[2] = 0;
}
TSI_EnableHardwareTriggerScan(TSI0, false); /* Enable software trigger scan */
TSI_DisableInterrupts(TSI0, kTSI_EndOfScanInterruptEnable);
TSI_ClearStatusFlags(TSI0, kTSI_EndOfScanFlag);
TSI_SetMeasuredChannelNumber(TSI0, BOARD_TSI_ELECTRODE_2);
TSI_StartSoftwareTrigger(TSI0);
while (!(TSI_GetStatusFlags(TSI0) & kTSI_EndOfScanFlag))
{
}
/* Left mouse button */
if(TSI_GetCounter(TSI0) > TOUCH_THRESHHOLD){
g_UsbDeviceHidMouse.buffer[0] |= 1U;
}else{
g_UsbDeviceHidMouse.buffer[0] &= ~1U;
}
TSI_EnableHardwareTriggerScan(TSI0, false); /* Enable software trigger scan */
TSI_DisableInterrupts(TSI0, kTSI_EndOfScanInterruptEnable);
TSI_ClearStatusFlags(TSI0, kTSI_EndOfScanFlag);
TSI_SetMeasuredChannelNumber(TSI0, BOARD_TSI_ELECTRODE_1);
TSI_StartSoftwareTrigger(TSI0);
while (!(TSI_GetStatusFlags(TSI0) & kTSI_EndOfScanFlag))
{
}
/* Right mouse button */
if(TSI_GetCounter(TSI0) > TOUCH_THRESHHOLD){
g_UsbDeviceHidMouse.buffer[0] |= 2U;
}else{
g_UsbDeviceHidMouse.buffer[0] &= ~2U;
}
/* Send mouse report to the host */
return USB_DeviceHidSend(g_UsbDeviceHidMouse.hidHandle, USB_HID_MOUSE_ENDPOINT_IN, g_UsbDeviceHidMouse.buffer,
USB_HID_MOUSE_REPORT_LENGTH);
}