From: Paulo Zanoni paulo.r.zanoni@intel.com
New library calls: - drmModeCrtcGetProperties - drmModeFreeCrtcProperties - drmModeCrtcSetProperties
Signed-off-by: Paulo Zanoni paulo.r.zanoni@intel.com --- include/drm/drm.h | 2 + include/drm/drm_mode.h | 13 ++++++++ xf86drmMode.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++ xf86drmMode.h | 12 +++++++ 4 files changed, 106 insertions(+), 0 deletions(-)
diff --git a/include/drm/drm.h b/include/drm/drm.h index 8adb9d5..45eef57 100644 --- a/include/drm/drm.h +++ b/include/drm/drm.h @@ -717,6 +717,8 @@ struct drm_get_cap { #define DRM_IOCTL_MODE_GETPLANE DRM_IOWR(0xB6, struct drm_mode_get_plane) #define DRM_IOCTL_MODE_SETPLANE DRM_IOWR(0xB7, struct drm_mode_set_plane) #define DRM_IOCTL_MODE_ADDFB2 DRM_IOWR(0xB8, struct drm_mode_fb_cmd2) +#define DRM_IOCTL_MODE_CRTC_GETPROPERTIES DRM_IOWR(0xB9, struct drm_mode_crtc_get_properties) +#define DRM_IOCTL_MODE_CRTC_SETPROPERTY DRM_IOWR(0xBA, struct drm_mode_crtc_set_property)
/** * Device specific ioctls should only be in their respective headers diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h index f36c61a..2bc6b83 100644 --- a/include/drm/drm_mode.h +++ b/include/drm/drm_mode.h @@ -250,6 +250,19 @@ struct drm_mode_connector_set_property { __u32 connector_id; };
+struct drm_mode_crtc_get_properties { + __u64 props_ptr; + __u64 prop_values_ptr; + __u32 count_props; + __u32 crtc_id; +}; + +struct drm_mode_crtc_set_property { + __u64 value; + __u32 prop_id; + __u32 crtc_id; +}; + struct drm_mode_get_blob { __u32 blob_id; __u32 length; diff --git a/xf86drmMode.c b/xf86drmMode.c index c809c44..67cbc02 100644 --- a/xf86drmMode.c +++ b/xf86drmMode.c @@ -974,3 +974,82 @@ void drmModeFreePlaneResources(drmModePlaneResPtr ptr) drmFree(ptr->planes); drmFree(ptr); } + +drmModeCrtcPropertiesPtr drmModeCrtcGetProperties(int fd, uint32_t crtc_id) +{ + struct drm_mode_crtc_get_properties properties; + drmModeCrtcPropertiesPtr ret = NULL; + uint32_t count; + +retry: + memset(&properties, 0, sizeof(struct drm_mode_crtc_get_properties)); + properties.crtc_id = crtc_id; + + if (drmIoctl(fd, DRM_IOCTL_MODE_CRTC_GETPROPERTIES, &properties)) + return 0; + + count = properties.count_props; + + if (count) { + properties.props_ptr = VOID2U64(drmMalloc(count * + sizeof(uint32_t))); + if (!properties.props_ptr) + goto err_allocs; + properties.prop_values_ptr = VOID2U64(drmMalloc(count * + sizeof(uint64_t))); + if (!properties.prop_values_ptr) + goto err_allocs; + } + + if (drmIoctl(fd, DRM_IOCTL_MODE_CRTC_GETPROPERTIES, &properties)) + goto err_allocs; + + if (count < properties.count_props) { + drmFree(U642VOID(properties.props_ptr)); + drmFree(U642VOID(properties.prop_values_ptr)); + goto retry; + } + count = properties.count_props; + + ret = drmMalloc(sizeof(*ret)); + if (!ret) + goto err_allocs; + + ret->count_props = count; + ret->props = drmAllocCpy(U642VOID(properties.props_ptr), + count, sizeof(uint32_t)); + ret->prop_values = drmAllocCpy(U642VOID(properties.prop_values_ptr), + count, sizeof(uint64_t)); + if (ret->count_props && (!ret->props || !ret->prop_values)) { + drmFree(ret->props); + drmFree(ret->prop_values); + drmFree(ret); + ret = NULL; + } + +err_allocs: + drmFree(U642VOID(properties.props_ptr)); + drmFree(U642VOID(properties.prop_values_ptr)); + return ret; +} + +void drmModeFreeCrtcProperties(drmModeCrtcPropertiesPtr ptr) +{ + if (!ptr) + return; + drmFree(ptr->props); + drmFree(ptr->prop_values); + drmFree(ptr); +} + +int drmModeCrtcSetProperty(int fd, uint32_t crtc_id, uint32_t property_id, + uint64_t value) +{ + struct drm_mode_crtc_set_property prop; + + prop.value = value; + prop.prop_id = property_id; + prop.crtc_id = crtc_id; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_CRTC_SETPROPERTY, &prop); +} diff --git a/xf86drmMode.h b/xf86drmMode.h index 991e3f9..f2733ec 100644 --- a/xf86drmMode.h +++ b/xf86drmMode.h @@ -281,6 +281,12 @@ typedef struct _drmModeConnector { uint32_t *encoders; /**< List of encoder ids */ } drmModeConnector, *drmModeConnectorPtr;
+typedef struct _drmModeCrtcProperties { + uint32_t count_props; + uint32_t *props; + uint64_t *prop_values; +} drmModeCrtcProperties, *drmModeCrtcPropertiesPtr; + typedef struct _drmModePlane { uint32_t count_formats; uint32_t *formats; @@ -428,6 +434,12 @@ extern int drmModeSetPlane(int fd, uint32_t plane_id, uint32_t crtc_id, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h);
+extern drmModeCrtcPropertiesPtr drmModeCrtcGetProperties(int fd, + uint32_t crtc_id); +extern void drmModeFreeCrtcProperties(drmModeCrtcPropertiesPtr ptr); +extern int drmModeCrtcSetProperty(int fd, uint32_t crtc_id, + uint32_t property_id, uint64_t value); + #if defined(__cplusplus) || defined(c_plusplus) } #endif