ssize_t QUsb::qhyccd_get_device_list(qhyccd_device ***list)
{
ssize_t length = 0;
libusb_device **usb_devices;
ssize_t usb_devices_num;
ssize_t i;
*list = (qhyccd_device**)malloc(sizeof(qhyccd_device*));
(*list)[length] = NULL;
usb_devices_num = libusb_get_device_list(qhyusb->ctx, &usb_devices);
if (usb_devices_num < 0) {
return -1;
}
for (i = 0; i < usb_devices_num; i++) {
libusb_device *device = usb_devices[i];
if (is_supported_device(device)) {
libusb_ref_device(device);
(*list)[length] = device;
length++;
*list = (qhyccd_device**)
realloc(*list, sizeof(qhyccd_device*) * (length + 1));
(*list)[length] = NULL;
}
}
libusb_free_device_list(usb_devices, 1);
return length;
}
/**
* intel_gvt_init - initialize GVT components
* @dev_priv: drm i915 private data
*
* This function is called at the initialization stage to create a GVT device.
*
* Returns:
* Zero on success, negative error code if failed.
*
*/
int intel_gvt_init(struct drm_i915_private *dev_priv)
{
int ret;
if (!i915.enable_gvt) {
DRM_DEBUG_DRIVER("GVT-g is disabled by kernel params\n");
return 0;
}
if (!is_supported_device(dev_priv)) {
DRM_DEBUG_DRIVER("Unsupported device. GVT-g is disabled\n");
goto bail;
}
/*
* We're not in host or fail to find a MPT module, disable GVT-g
*/
ret = intel_gvt_init_host();
if (ret) {
DRM_DEBUG_DRIVER("Not in host or MPT modules not found\n");
goto bail;
}
ret = intel_gvt_init_device(dev_priv);
if (ret) {
DRM_DEBUG_DRIVER("Fail to init GVT device\n");
goto bail;
}
return 0;
bail:
i915.enable_gvt = 0;
return 0;
}
/**
* intel_gvt_sanitize_options - sanitize GVT related options
* @dev_priv: drm i915 private data
*
* This function is called at the i915 options sanitize stage.
*/
void intel_gvt_sanitize_options(struct drm_i915_private *dev_priv)
{
if (!i915_modparams.enable_gvt)
return;
if (intel_vgpu_active(dev_priv)) {
DRM_INFO("GVT-g is disabled for guest\n");
goto bail;
}
if (!is_supported_device(dev_priv)) {
DRM_INFO("Unsupported device. GVT-g is disabled\n");
goto bail;
}
return;
bail:
i915_modparams.enable_gvt = 0;
}
