drivers/gpu/drm/logicvc/logicvc_layer.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2019-2022 Bootlin
   4  * Author: Paul Kocialkowski <[email protected]>
   5  */
   6
   7 #ifndef _LOGICVC_LAYER_H_
   8 #define _LOGICVC_LAYER_H_
   9
  10 #include <linux/of.h>
  11 #include <linux/types.h>
  12 #include <drm/drm_plane.h>
  13
  14 #define LOGICVC_LAYER_COLORSPACE_RGB            0
  15 #define LOGICVC_LAYER_COLORSPACE_YUV            1
  16
  17 #define LOGICVC_LAYER_ALPHA_LAYER               0
  18 #define LOGICVC_LAYER_ALPHA_PIXEL               1
  19
  20 struct logicvc_layer_buffer_setup {
  21         u8 buffer_sel;
  22         u16 voffset;
  23         u16 hoffset;
  24 };
  25
  26 struct logicvc_layer_config {
  27         u32 colorspace;
  28         u32 depth;
  29         u32 alpha_mode;
  30         u32 base_offset;
  31         u32 buffer_offset;
  32         bool primary;
  33 };
  34
  35 struct logicvc_layer_formats {
  36         u32 colorspace;
  37         u32 depth;
  38         bool alpha;
  39         uint32_t *formats;
  40 };
  41
  42 struct logicvc_layer {
  43         struct logicvc_layer_config config;
  44         struct logicvc_layer_formats *formats;
  45         struct device_node *of_node;
  46
  47         struct drm_plane drm_plane;
  48         struct list_head list;
  49         u32 index;
  50 };
  51
  52 int logicvc_layer_buffer_find_setup(struct logicvc_drm *logicvc,
  53                                     struct logicvc_layer *layer,
  54                                     struct drm_plane_state *state,
  55                                     struct logicvc_layer_buffer_setup *setup);
  56 struct logicvc_layer *logicvc_layer_get_from_index(struct logicvc_drm *logicvc,
  57                                                    u32 index);
  58 struct logicvc_layer *logicvc_layer_get_from_type(struct logicvc_drm *logicvc,
  59                                                   enum drm_plane_type type);
  60 struct logicvc_layer *logicvc_layer_get_primary(struct logicvc_drm *logicvc);
  61 void logicvc_layers_attach_crtc(struct logicvc_drm *logicvc);
  62 int logicvc_layers_init(struct logicvc_drm *logicvc);
  63
  64 #endif