diff options
| -rw-r--r-- | linux-core/drm_crtc.c | 23 | ||||
| -rw-r--r-- | linux-core/drm_crtc.h | 3 |
2 files changed, 26 insertions, 0 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c index 5d5448c5..fc35c1ab 100644 --- a/linux-core/drm_crtc.c +++ b/linux-core/drm_crtc.c @@ -1104,6 +1104,7 @@ int drm_mode_getoutput(struct drm_device *dev, struct drm_display_mode *mode; int mode_count = 0; int props_count = 0; + int encoders_count = 0; int ret = 0; int copied = 0; int i; @@ -1111,6 +1112,7 @@ int drm_mode_getoutput(struct drm_device *dev, struct drm_mode_modeinfo __user *mode_ptr; uint32_t __user *prop_ptr; uint64_t __user *prop_values; + uint32_t __user *encoder_ptr; memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); @@ -1132,6 +1134,12 @@ int drm_mode_getoutput(struct drm_device *dev, } } + for (i = 0; i < DRM_OUTPUT_MAX_ENCODER; i++) { + if (output->encoder_ids[i] != 0) { + encoders_count++; + } + } + if (out_resp->count_modes == 0) { drm_crtc_probe_single_output_modes(output, dev->mode_config.max_width, dev->mode_config.max_height); } @@ -1187,6 +1195,21 @@ int drm_mode_getoutput(struct drm_device *dev, } out_resp->count_props = props_count; + if ((out_resp->count_encoders >= encoders_count) && encoders_count) { + copied = 0; + encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr); + for (i = 0; i < DRM_OUTPUT_MAX_ENCODER; i++) { + if (output->encoder_ids[i] != 0) { + if (put_user(output->encoder_ids[i], encoder_ptr + copied)) { + ret = -EFAULT; + goto out; + } + copied++; + } + } + } + out_resp->count_encoders = encoders_count; + out: mutex_unlock(&dev->mode_config.mutex); return ret; diff --git a/linux-core/drm_crtc.h b/linux-core/drm_crtc.h index adaa49bd..ed8467e3 100644 --- a/linux-core/drm_crtc.h +++ b/linux-core/drm_crtc.h @@ -402,6 +402,7 @@ struct drm_encoder_funcs { #define DRM_OUTPUT_MAX_UMODES 16 #define DRM_OUTPUT_MAX_PROPERTY 16 #define DRM_OUTPUT_LEN 32 +#define DRM_OUTPUT_MAX_ENCODER 2 /** * drm_encoder - central DRM encoder structure @@ -468,6 +469,8 @@ struct drm_output { uint64_t property_values[DRM_OUTPUT_MAX_PROPERTY]; void *helper_private; + + u32 encoder_ids[DRM_OUTPUT_MAX_ENCODER]; }; /** |