2 * Copyright (C) STMicroelectronics SA 2014
3 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
4 * Fabien Dessenne <fabien.dessenne@st.com>
5 * for STMicroelectronics.
6 * License terms: GNU General Public License (GPL), version 2
10 #include <drm/drm_fb_cma_helper.h>
11 #include <drm/drm_gem_cma_helper.h>
13 #include "sti_compositor.h"
15 #include "sti_plane.h"
17 const char *sti_plane_to_str(struct sti_plane *plane)
19 switch (plane->desc) {
33 return "<UNKNOWN PLANE>";
37 #define STI_FPS_INTERVAL_MS 3000
39 void sti_plane_update_fps(struct sti_plane *plane,
44 struct sti_fps_info *fps;
45 int fpks, fipks, ms_since_last, num_frames, num_fields;
49 /* Compute number of frame updates */
50 fps = &plane->fps_info;
53 fps->curr_field_counter++;
55 /* do not perform fps calcul if new_frame is false */
59 fps->curr_frame_counter++;
60 ms_since_last = ktime_to_ms(ktime_sub(now, fps->last_timestamp));
61 num_frames = fps->curr_frame_counter - fps->last_frame_counter;
63 if (num_frames <= 0 || ms_since_last < STI_FPS_INTERVAL_MS)
66 fps->last_timestamp = now;
67 fps->last_frame_counter = fps->curr_frame_counter;
68 fpks = (num_frames * 1000000) / ms_since_last;
69 snprintf(plane->fps_info.fps_str, FPS_LENGTH, "%-6s @ %d.%.3d fps",
70 sti_plane_to_str(plane), fpks / 1000, fpks % 1000);
72 if (fps->curr_field_counter) {
73 /* Compute number of field updates */
74 num_fields = fps->curr_field_counter - fps->last_field_counter;
75 fps->last_field_counter = fps->curr_field_counter;
76 fipks = (num_fields * 1000000) / ms_since_last;
77 snprintf(plane->fps_info.fips_str,
78 FPS_LENGTH, " - %d.%.3d field/sec",
79 fipks / 1000, fipks % 1000);
81 plane->fps_info.fips_str[0] = '\0';
86 plane->fps_info.fps_str,
87 plane->fps_info.fips_str);
90 static int sti_plane_get_default_zpos(enum drm_plane_type type)
93 case DRM_PLANE_TYPE_PRIMARY:
95 case DRM_PLANE_TYPE_OVERLAY:
97 case DRM_PLANE_TYPE_CURSOR:
103 void sti_plane_reset(struct drm_plane *plane)
105 drm_atomic_helper_plane_reset(plane);
106 plane->state->zpos = sti_plane_get_default_zpos(plane->type);
109 static void sti_plane_attach_zorder_property(struct drm_plane *drm_plane,
110 enum drm_plane_type type)
112 int zpos = sti_plane_get_default_zpos(type);
115 case DRM_PLANE_TYPE_PRIMARY:
116 case DRM_PLANE_TYPE_OVERLAY:
117 drm_plane_create_zpos_property(drm_plane, zpos, 0, 6);
119 case DRM_PLANE_TYPE_CURSOR:
120 drm_plane_create_zpos_immutable_property(drm_plane, zpos);
125 void sti_plane_init_property(struct sti_plane *plane,
126 enum drm_plane_type type)
128 sti_plane_attach_zorder_property(&plane->drm_plane, type);
130 DRM_DEBUG_DRIVER("drm plane:%d mapped to %s\n",
131 plane->drm_plane.base.id, sti_plane_to_str(plane));