ICP_ErrorType ICP_Init(void) {
Logging::print("ICP_Init()\n");
ICP_ErrorType rc = bdm_usb_init();
initialised = (rc == ICP_RC_OK);
return rc;
}
//**********************************************************
//!
//! Find all USBDM devices attached to the computer
//!
//! @param deviceCount Number of devices found. This is set
//! to zero on any error.
//!
//! @return\n
//! ICP_RC_OK - success - found at least 1 device \n
//! ICP_RC_USB_ERROR - no device found or various errors
//!
ICP_ErrorType bdm_usb_findDevices(unsigned *devCount) {
// print("bdm_usb_find_devices()\n");
*devCount = 0; // Assume failure
ICP_ErrorType rc = ICP_RC_OK;
// Release any currently referenced devices
bdm_usb_releaseDevices();
if (!initialised) {
print("bdm_usb_find_devices() - Not initialised! \n");
rc = bdm_usb_init(); // try again
if (rc != ICP_RC_OK) {
return rc;
}
}
// discover all USB devices
libusb_device **list;
ssize_t cnt = libusb_get_device_list(NULL, &list);
if (cnt < 0) {
print("bdm_usb_find_devices() - libusb_get_device_list() failed! \n");
return ICP_RC_USB_ERROR;
}
// Copy the ones we are interested in to our own list
deviceCount = 0;
for (int deviceIndex=0; deviceIndex<cnt; deviceIndex++) {
// Check each device and copy any devices to local list
// print("bdm_usb_find_devices() ==> checking device #%d\n", deviceIndex);
libusb_device *currentDevice = list[deviceIndex];
libusb_device_descriptor deviceDescriptor;
int rc = libusb_get_device_descriptor(currentDevice, &deviceDescriptor);
if (rc != LIBUSB_SUCCESS) {
continue; // Skip device
}
// print("bdm_usb_find_devices() ==> Checking device VID=%4.4X, PID=%4.4X\n",
// deviceDescriptor.idVendor, deviceDescriptor.idProduct);
if ((deviceDescriptor.idVendor==JS16_BOOT_VID)&&(deviceDescriptor.idProduct==JS16_BOOT_PID)) {
// Found a device
// print("bdm_usb_find_devices() ==> found USBDM device #%d\n", deviceIndex);
bdmDevices[deviceCount++] = currentDevice; // Record found device
libusb_ref_device(currentDevice); // Reference so we don't lose it
bdmDevices[deviceCount]=NULL; // Terminate the list again
if (deviceCount>MAX_BDM_DEVICES) {
break;
}
}
}
// Free the original list (devices referenced above are still referenced)
libusb_free_device_list(list, true);
*devCount = deviceCount;
// print("bdm_usb_find_devices() ==> %d\n", deviceCount);
if(deviceCount>0) {
return ICP_RC_OK;
}
else {
return ICP_RC_NO_JS16_DEVICE;
}
}
