C++ (Cpp) nouveau_dp_probe_oui Exemples

Exemple #1

Fichier : nouveau_dp.c Projet : AlexShiLucky/linux

int
nouveau_dp_detect(struct nouveau_encoder *nv_encoder)
{
	struct drm_device *dev = nv_encoder->base.base.dev;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_i2c_aux *aux;
	u8 dpcd[8];
	int ret;

	aux = nv_encoder->aux;
	if (!aux)
		return -ENODEV;

	ret = nvkm_rdaux(aux, DP_DPCD_REV, dpcd, sizeof(dpcd));
	if (ret)
		return ret;

	nv_encoder->dp.link_bw = 27000 * dpcd[1];
	nv_encoder->dp.link_nr = dpcd[2] & DP_MAX_LANE_COUNT_MASK;

	NV_DEBUG(drm, "display: %dx%d dpcd 0x%02x\n",
		     nv_encoder->dp.link_nr, nv_encoder->dp.link_bw, dpcd[0]);
	NV_DEBUG(drm, "encoder: %dx%d\n",
		     nv_encoder->dcb->dpconf.link_nr,
		     nv_encoder->dcb->dpconf.link_bw);

	if (nv_encoder->dcb->dpconf.link_nr < nv_encoder->dp.link_nr)
		nv_encoder->dp.link_nr = nv_encoder->dcb->dpconf.link_nr;
	if (nv_encoder->dcb->dpconf.link_bw < nv_encoder->dp.link_bw)
		nv_encoder->dp.link_bw = nv_encoder->dcb->dpconf.link_bw;

	NV_DEBUG(drm, "maximum: %dx%d\n",
		     nv_encoder->dp.link_nr, nv_encoder->dp.link_bw);

	nouveau_dp_probe_oui(dev, aux, dpcd);

	ret = nv50_mstm_detect(nv_encoder->dp.mstm, dpcd, nouveau_mst);
	if (ret == 1)
		return NOUVEAU_DP_MST;
	if (ret == 0)
		return NOUVEAU_DP_SST;
	return ret;
}

Exemple #2

Fichier : nouveau_dp.c Projet : JorgeFRod/linux

int
nouveau_dp_detect(struct nouveau_encoder *nv_encoder)
{
	struct drm_device *dev = nv_encoder->base.base.dev;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_i2c_port *auxch;
	u8 *dpcd = nv_encoder->dp.dpcd;
	int ret;

	auxch = nv_encoder->i2c;
	if (!auxch)
		return -ENODEV;

	ret = nv_rdaux(auxch, DP_DPCD_REV, dpcd, 8);
	if (ret)
		return ret;

	nv_encoder->dp.link_bw = 27000 * dpcd[1];
	nv_encoder->dp.link_nr = dpcd[2] & DP_MAX_LANE_COUNT_MASK;

	NV_DEBUG(drm, "display: %dx%d dpcd 0x%02x\n",
		     nv_encoder->dp.link_nr, nv_encoder->dp.link_bw, dpcd[0]);
	NV_DEBUG(drm, "encoder: %dx%d\n",
		     nv_encoder->dcb->dpconf.link_nr,
		     nv_encoder->dcb->dpconf.link_bw);

	if (nv_encoder->dcb->dpconf.link_nr < nv_encoder->dp.link_nr)
		nv_encoder->dp.link_nr = nv_encoder->dcb->dpconf.link_nr;
	if (nv_encoder->dcb->dpconf.link_bw < nv_encoder->dp.link_bw)
		nv_encoder->dp.link_bw = nv_encoder->dcb->dpconf.link_bw;

	NV_DEBUG(drm, "maximum: %dx%d\n",
		     nv_encoder->dp.link_nr, nv_encoder->dp.link_bw);

	nouveau_dp_probe_oui(dev, auxch, dpcd);
	return 0;
}