diff options
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/msm_mdp_ext.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/include/uapi/linux/msm_mdp_ext.h b/include/uapi/linux/msm_mdp_ext.h index a224ff3f5267..634eec6ed1c5 100644 --- a/include/uapi/linux/msm_mdp_ext.h +++ b/include/uapi/linux/msm_mdp_ext.h @@ -7,6 +7,22 @@ /* atomic commit ioctl used for validate and commit request */ #define MSMFB_ATOMIC_COMMIT _IOWR(MDP_IOCTL_MAGIC, 128, void *) +/* + * Ioctl for updating the layer position asynchronously. Initially, pipes + * should be configured with MDP_LAYER_ASYNC flag set during the atomic commit, + * after which any number of position update calls can be made. This would + * enable multiple position updates within a single vsync. However, the screen + * update would happen only after vsync, which would pick the latest update. + * + * Limitations: + * - Currently supported only for video mode panels with single LM or dual LM + * with source_split enabled. + * - Only position update is supported with no scaling/cropping. + * - Async layers should have unique z_order. + */ +#define MSMFB_ASYNC_POSITION_UPDATE _IOWR(MDP_IOCTL_MAGIC, 129, \ + struct mdp_position_update) + /********************************************************************** LAYER FLAG CONFIGURATION **********************************************************************/ @@ -40,6 +56,9 @@ LAYER FLAG CONFIGURATION /* layer contains bandwidth compressed format data */ #define MDP_LAYER_BWC 0x80 +/* layer is async position updatable */ +#define MDP_LAYER_ASYNC 0x100 + /********************************************************************** VALIDATE/COMMIT FLAG CONFIGURATION **********************************************************************/ @@ -348,4 +367,52 @@ struct mdp_layer_commit { }; }; +struct mdp_point { + uint32_t x; + uint32_t y; +}; + +/* + * Async updatable layers. One layer holds configuration for one pipe. + */ +struct mdp_async_layer { + /* + * Flag to enable/disable properties for layer configuration. Refer + * layer flag config section for all possible flags. + */ + uint32_t flags; + + /* + * Pipe selection for this layer by client. Client provides the + * pipe index that the device reserved during ATOMIC_COMMIT. + */ + uint32_t pipe_ndx; + + /* Source start x,y. */ + struct mdp_point src; + + /* Destination start x,y. */ + struct mdp_point dst; + + /* + * This is an output parameter. + * + * Frame buffer device sets error code based on the failure. + */ + int error_code; + + uint32_t reserved[3]; +}; + +/* + * mdp_position_update - argument for ioctl MSMFB_ASYNC_POSITION_UPDATE + */ +struct mdp_position_update { + /* Pointer to a list of async updatable input layers */ + struct mdp_async_layer __user *input_layers; + + /* Input layer count present in input list */ + uint32_t input_layer_cnt; +}; + #endif |