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1 | /* |
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 | |
7 | */ | |
8 | ||
9 | #include "sti_compositor.h" | |
10 | #include "sti_drm_drv.h" | |
11 | #include "sti_drm_plane.h" | |
12 | #include "sti_vtg.h" | |
13 | ||
14 | enum sti_layer_desc sti_layer_default_zorder[] = { | |
15 | STI_GDP_0, | |
16 | STI_VID_0, | |
17 | STI_GDP_1, | |
18 | STI_VID_1, | |
19 | STI_GDP_2, | |
20 | STI_GDP_3, | |
21 | }; | |
22 | ||
23 | /* (Background) < GDP0 < VID0 < GDP1 < VID1 < GDP2 < GDP3 < (ForeGround) */ | |
24 | ||
25 | static int | |
26 | sti_drm_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, | |
27 | struct drm_framebuffer *fb, int crtc_x, int crtc_y, | |
28 | unsigned int crtc_w, unsigned int crtc_h, | |
29 | uint32_t src_x, uint32_t src_y, | |
30 | uint32_t src_w, uint32_t src_h) | |
31 | { | |
32 | struct sti_layer *layer = to_sti_layer(plane); | |
33 | struct sti_mixer *mixer = to_sti_mixer(crtc); | |
34 | int res; | |
35 | ||
36 | DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s) drm fb:%d\n", | |
37 | crtc->base.id, sti_mixer_to_str(mixer), | |
38 | plane->base.id, sti_layer_to_str(layer), fb->base.id); | |
39 | DRM_DEBUG_KMS("(%dx%d)@(%d,%d)\n", crtc_w, crtc_h, crtc_x, crtc_y); | |
40 | ||
41 | res = sti_mixer_set_layer_depth(mixer, layer); | |
42 | if (res) { | |
43 | DRM_ERROR("Can not set layer depth\n"); | |
44 | return res; | |
45 | } | |
46 | ||
47 | /* src_x are in 16.16 format. */ | |
4fdbc678 BG |
48 | res = sti_layer_prepare(layer, crtc, fb, |
49 | &crtc->mode, mixer->id, | |
9bbf86fe BG |
50 | crtc_x, crtc_y, crtc_w, crtc_h, |
51 | src_x >> 16, src_y >> 16, | |
52 | src_w >> 16, src_h >> 16); | |
53 | if (res) { | |
54 | DRM_ERROR("Layer prepare failed\n"); | |
55 | return res; | |
56 | } | |
57 | ||
58 | res = sti_layer_commit(layer); | |
59 | if (res) { | |
60 | DRM_ERROR("Layer commit failed\n"); | |
61 | return res; | |
62 | } | |
63 | ||
64 | res = sti_mixer_set_layer_status(mixer, layer, true); | |
65 | if (res) { | |
66 | DRM_ERROR("Can not enable layer at mixer\n"); | |
67 | return res; | |
68 | } | |
69 | ||
70 | return 0; | |
71 | } | |
72 | ||
73 | static int sti_drm_disable_plane(struct drm_plane *plane) | |
74 | { | |
75 | struct sti_layer *layer; | |
76 | struct sti_mixer *mixer; | |
77 | int lay_res, mix_res; | |
78 | ||
79 | if (!plane->crtc) { | |
80 | DRM_DEBUG_DRIVER("drm plane:%d not enabled\n", plane->base.id); | |
81 | return 0; | |
82 | } | |
83 | layer = to_sti_layer(plane); | |
84 | mixer = to_sti_mixer(plane->crtc); | |
85 | ||
86 | DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n", | |
87 | plane->crtc->base.id, sti_mixer_to_str(mixer), | |
88 | plane->base.id, sti_layer_to_str(layer)); | |
89 | ||
90 | /* Disable layer at mixer level */ | |
91 | mix_res = sti_mixer_set_layer_status(mixer, layer, false); | |
92 | if (mix_res) | |
93 | DRM_ERROR("Can not disable layer at mixer\n"); | |
94 | ||
95 | /* Wait a while to be sure that a Vsync event is received */ | |
96 | msleep(WAIT_NEXT_VSYNC_MS); | |
97 | ||
98 | /* Then disable layer itself */ | |
99 | lay_res = sti_layer_disable(layer); | |
100 | if (lay_res) | |
101 | DRM_ERROR("Layer disable failed\n"); | |
102 | ||
103 | if (lay_res || mix_res) | |
104 | return -EINVAL; | |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
109 | static void sti_drm_plane_destroy(struct drm_plane *plane) | |
110 | { | |
111 | DRM_DEBUG_DRIVER("\n"); | |
112 | ||
113 | sti_drm_disable_plane(plane); | |
114 | drm_plane_cleanup(plane); | |
115 | } | |
116 | ||
117 | static int sti_drm_plane_set_property(struct drm_plane *plane, | |
118 | struct drm_property *property, | |
119 | uint64_t val) | |
120 | { | |
121 | struct drm_device *dev = plane->dev; | |
122 | struct sti_drm_private *private = dev->dev_private; | |
123 | struct sti_layer *layer = to_sti_layer(plane); | |
124 | ||
125 | DRM_DEBUG_DRIVER("\n"); | |
126 | ||
127 | if (property == private->plane_zorder_property) { | |
128 | layer->zorder = val; | |
129 | return 0; | |
130 | } | |
131 | ||
132 | return -EINVAL; | |
133 | } | |
134 | ||
135 | static struct drm_plane_funcs sti_drm_plane_funcs = { | |
136 | .update_plane = sti_drm_update_plane, | |
137 | .disable_plane = sti_drm_disable_plane, | |
138 | .destroy = sti_drm_plane_destroy, | |
139 | .set_property = sti_drm_plane_set_property, | |
140 | }; | |
141 | ||
142 | static void sti_drm_plane_attach_zorder_property(struct drm_plane *plane, | |
143 | uint64_t default_val) | |
144 | { | |
145 | struct drm_device *dev = plane->dev; | |
146 | struct sti_drm_private *private = dev->dev_private; | |
147 | struct drm_property *prop; | |
148 | struct sti_layer *layer = to_sti_layer(plane); | |
149 | ||
150 | prop = private->plane_zorder_property; | |
151 | if (!prop) { | |
152 | prop = drm_property_create_range(dev, 0, "zpos", 0, | |
153 | GAM_MIXER_NB_DEPTH_LEVEL - 1); | |
154 | if (!prop) | |
155 | return; | |
156 | ||
157 | private->plane_zorder_property = prop; | |
158 | } | |
159 | ||
160 | drm_object_attach_property(&plane->base, prop, default_val); | |
161 | layer->zorder = default_val; | |
162 | } | |
163 | ||
164 | struct drm_plane *sti_drm_plane_init(struct drm_device *dev, | |
165 | struct sti_layer *layer, | |
166 | unsigned int possible_crtcs, | |
167 | enum drm_plane_type type) | |
168 | { | |
169 | int err, i; | |
170 | uint64_t default_zorder = 0; | |
171 | ||
172 | err = drm_universal_plane_init(dev, &layer->plane, possible_crtcs, | |
173 | &sti_drm_plane_funcs, | |
174 | sti_layer_get_formats(layer), | |
175 | sti_layer_get_nb_formats(layer), type); | |
176 | if (err) { | |
177 | DRM_ERROR("Failed to initialize plane\n"); | |
178 | return NULL; | |
179 | } | |
180 | ||
181 | for (i = 0; i < ARRAY_SIZE(sti_layer_default_zorder); i++) | |
182 | if (sti_layer_default_zorder[i] == layer->desc) | |
183 | break; | |
184 | ||
185 | default_zorder = i; | |
186 | ||
187 | if (type == DRM_PLANE_TYPE_OVERLAY) | |
188 | sti_drm_plane_attach_zorder_property(&layer->plane, | |
189 | default_zorder); | |
190 | ||
191 | DRM_DEBUG_DRIVER("drm plane:%d mapped to %s with zorder:%llu\n", | |
192 | layer->plane.base.id, | |
193 | sti_layer_to_str(layer), default_zorder); | |
194 | ||
195 | return &layer->plane; | |
196 | } | |
4e0cd681 | 197 | EXPORT_SYMBOL(sti_drm_plane_init); |