Commit | Line | Data |
---|---|---|
864ee9e6 JS |
1 | /* |
2 | * Copyright (C) 2011 Samsung Electronics Co.Ltd | |
3 | * Authors: Joonyoung Shim <jy0922.shim@samsung.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License as published by the | |
7 | * Free Software Foundation; either version 2 of the License, or (at your | |
8 | * option) any later version. | |
9 | * | |
10 | */ | |
11 | ||
760285e7 | 12 | #include <drm/drmP.h> |
864ee9e6 | 13 | |
760285e7 | 14 | #include <drm/exynos_drm.h> |
adf5691c | 15 | #include <drm/drm_plane_helper.h> |
4ea9526b | 16 | #include <drm/drm_atomic_helper.h> |
864ee9e6 | 17 | #include "exynos_drm_drv.h" |
080be03d | 18 | #include "exynos_drm_crtc.h" |
4070d212 JS |
19 | #include "exynos_drm_fb.h" |
20 | #include "exynos_drm_gem.h" | |
e30655d0 | 21 | #include "exynos_drm_plane.h" |
864ee9e6 | 22 | |
ba3849d5 EK |
23 | static const uint32_t formats[] = { |
24 | DRM_FORMAT_XRGB8888, | |
6b1c762d SWK |
25 | DRM_FORMAT_ARGB8888, |
26 | DRM_FORMAT_NV12, | |
ba3849d5 EK |
27 | }; |
28 | ||
2ab97921 JS |
29 | /* |
30 | * This function is to get X or Y size shown via screen. This needs length and | |
31 | * start position of CRTC. | |
32 | * | |
33 | * <--- length ---> | |
34 | * CRTC ---------------- | |
35 | * ^ start ^ end | |
36 | * | |
60a705a9 | 37 | * There are six cases from a to f. |
2ab97921 JS |
38 | * |
39 | * <----- SCREEN -----> | |
40 | * 0 last | |
41 | * ----------|------------------|---------- | |
42 | * CRTCs | |
43 | * a ------- | |
44 | * b ------- | |
45 | * c -------------------------- | |
46 | * d -------- | |
47 | * e ------- | |
48 | * f ------- | |
49 | */ | |
50 | static int exynos_plane_get_size(int start, unsigned length, unsigned last) | |
51 | { | |
52 | int end = start + length; | |
53 | int size = 0; | |
54 | ||
55 | if (start <= 0) { | |
56 | if (end > 0) | |
57 | size = min_t(unsigned, end, last); | |
58 | } else if (start <= last) { | |
59 | size = min_t(unsigned, last - start, length); | |
60 | } | |
61 | ||
62 | return size; | |
63 | } | |
64 | ||
adf5691c | 65 | int exynos_check_plane(struct drm_plane *plane, struct drm_framebuffer *fb) |
4070d212 | 66 | { |
8837deea | 67 | struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane); |
4070d212 JS |
68 | int nr; |
69 | int i; | |
70 | ||
b744868c GP |
71 | if (!fb) |
72 | return 0; | |
73 | ||
01ed8126 | 74 | nr = exynos_drm_fb_get_buf_cnt(fb); |
4070d212 JS |
75 | for (i = 0; i < nr; i++) { |
76 | struct exynos_drm_gem_buf *buffer = exynos_drm_fb_buffer(fb, i); | |
77 | ||
78 | if (!buffer) { | |
133dcdeb | 79 | DRM_DEBUG_KMS("buffer is null\n"); |
4070d212 JS |
80 | return -EFAULT; |
81 | } | |
82 | ||
5d878bdb | 83 | exynos_plane->dma_addr[i] = buffer->dma_addr + fb->offsets[i]; |
4070d212 | 84 | |
ddd8e959 | 85 | DRM_DEBUG_KMS("buffer: %d, dma_addr = 0x%lx\n", |
8837deea | 86 | i, (unsigned long)exynos_plane->dma_addr[i]); |
4070d212 JS |
87 | } |
88 | ||
adf5691c GP |
89 | return 0; |
90 | } | |
91 | ||
92 | void exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc, | |
93 | struct drm_framebuffer *fb, int crtc_x, int crtc_y, | |
94 | unsigned int crtc_w, unsigned int crtc_h, | |
95 | uint32_t src_x, uint32_t src_y, | |
96 | uint32_t src_w, uint32_t src_h) | |
97 | { | |
98 | struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane); | |
020e79de | 99 | struct drm_display_mode *mode = &crtc->state->adjusted_mode; |
adf5691c GP |
100 | unsigned int actual_w; |
101 | unsigned int actual_h; | |
102 | ||
020e79de JS |
103 | actual_w = exynos_plane_get_size(crtc_x, crtc_w, mode->hdisplay); |
104 | actual_h = exynos_plane_get_size(crtc_y, crtc_h, mode->vdisplay); | |
2ab97921 JS |
105 | |
106 | if (crtc_x < 0) { | |
107 | if (actual_w) | |
108 | src_x -= crtc_x; | |
2ab97921 JS |
109 | crtc_x = 0; |
110 | } | |
111 | ||
112 | if (crtc_y < 0) { | |
113 | if (actual_h) | |
114 | src_y -= crtc_y; | |
2ab97921 JS |
115 | crtc_y = 0; |
116 | } | |
4070d212 | 117 | |
3cabaf7e JS |
118 | /* set ratio */ |
119 | exynos_plane->h_ratio = (src_w << 16) / crtc_w; | |
120 | exynos_plane->v_ratio = (src_h << 16) / crtc_h; | |
121 | ||
4070d212 | 122 | /* set drm framebuffer data. */ |
cb8a3db2 JS |
123 | exynos_plane->src_x = src_x; |
124 | exynos_plane->src_y = src_y; | |
3cabaf7e JS |
125 | exynos_plane->src_width = (actual_w * exynos_plane->h_ratio) >> 16; |
126 | exynos_plane->src_height = (actual_h * exynos_plane->v_ratio) >> 16; | |
cb8a3db2 JS |
127 | exynos_plane->fb_width = fb->width; |
128 | exynos_plane->fb_height = fb->height; | |
8837deea GP |
129 | exynos_plane->bpp = fb->bits_per_pixel; |
130 | exynos_plane->pitch = fb->pitches[0]; | |
131 | exynos_plane->pixel_format = fb->pixel_format; | |
132 | ||
133 | /* set plane range to be displayed. */ | |
134 | exynos_plane->crtc_x = crtc_x; | |
135 | exynos_plane->crtc_y = crtc_y; | |
136 | exynos_plane->crtc_width = actual_w; | |
137 | exynos_plane->crtc_height = actual_h; | |
4070d212 JS |
138 | |
139 | /* set drm mode data. */ | |
020e79de JS |
140 | exynos_plane->mode_width = mode->hdisplay; |
141 | exynos_plane->mode_height = mode->vdisplay; | |
142 | exynos_plane->refresh = mode->vrefresh; | |
143 | exynos_plane->scan_flag = mode->flags; | |
4070d212 | 144 | |
8837deea GP |
145 | DRM_DEBUG_KMS("plane : offset_x/y(%d,%d), width/height(%d,%d)", |
146 | exynos_plane->crtc_x, exynos_plane->crtc_y, | |
147 | exynos_plane->crtc_width, exynos_plane->crtc_height); | |
4070d212 | 148 | |
72ed6ccd | 149 | plane->crtc = crtc; |
4070d212 JS |
150 | } |
151 | ||
43dbdad2 | 152 | void |
864ee9e6 JS |
153 | exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, |
154 | struct drm_framebuffer *fb, int crtc_x, int crtc_y, | |
155 | unsigned int crtc_w, unsigned int crtc_h, | |
156 | uint32_t src_x, uint32_t src_y, | |
157 | uint32_t src_w, uint32_t src_h) | |
158 | { | |
93bca243 | 159 | struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); |
9d5310c0 | 160 | struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane); |
864ee9e6 | 161 | |
adf5691c GP |
162 | exynos_plane_mode_set(plane, crtc, fb, crtc_x, crtc_y, |
163 | crtc_w, crtc_h, src_x >> 16, src_y >> 16, | |
164 | src_w >> 16, src_h >> 16); | |
165 | ||
93bca243 GP |
166 | if (exynos_crtc->ops->win_commit) |
167 | exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos); | |
864ee9e6 JS |
168 | } |
169 | ||
864ee9e6 | 170 | static struct drm_plane_funcs exynos_plane_funcs = { |
43dbdad2 | 171 | .update_plane = drm_plane_helper_update, |
b744868c | 172 | .disable_plane = drm_plane_helper_disable, |
97464d7d | 173 | .destroy = drm_plane_cleanup, |
4ea9526b GP |
174 | .reset = drm_atomic_helper_plane_reset, |
175 | .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, | |
176 | .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, | |
864ee9e6 JS |
177 | }; |
178 | ||
43dbdad2 GP |
179 | static int exynos_plane_atomic_check(struct drm_plane *plane, |
180 | struct drm_plane_state *state) | |
181 | { | |
182 | return exynos_check_plane(plane, state->fb); | |
183 | } | |
184 | ||
185 | static void exynos_plane_atomic_update(struct drm_plane *plane, | |
186 | struct drm_plane_state *old_state) | |
187 | { | |
188 | struct drm_plane_state *state = plane->state; | |
189 | ||
190 | if (!state->crtc) | |
191 | return; | |
192 | ||
193 | exynos_update_plane(plane, state->crtc, state->fb, | |
194 | state->crtc_x, state->crtc_y, | |
195 | state->crtc_w, state->crtc_h, | |
196 | state->src_x, state->src_y, | |
197 | state->src_w, state->src_h); | |
198 | } | |
199 | ||
b744868c GP |
200 | static void exynos_plane_atomic_disable(struct drm_plane *plane, |
201 | struct drm_plane_state *old_state) | |
202 | { | |
203 | struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane); | |
204 | struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(old_state->crtc); | |
205 | ||
206 | if (!old_state->crtc) | |
207 | return; | |
208 | ||
209 | if (exynos_crtc->ops->win_disable) | |
210 | exynos_crtc->ops->win_disable(exynos_crtc, | |
211 | exynos_plane->zpos); | |
212 | } | |
213 | ||
43dbdad2 GP |
214 | static const struct drm_plane_helper_funcs plane_helper_funcs = { |
215 | .atomic_check = exynos_plane_atomic_check, | |
216 | .atomic_update = exynos_plane_atomic_update, | |
b744868c | 217 | .atomic_disable = exynos_plane_atomic_disable, |
43dbdad2 GP |
218 | }; |
219 | ||
6e2a3b66 GP |
220 | static void exynos_plane_attach_zpos_property(struct drm_plane *plane, |
221 | unsigned int zpos) | |
00ae67cf JS |
222 | { |
223 | struct drm_device *dev = plane->dev; | |
224 | struct exynos_drm_private *dev_priv = dev->dev_private; | |
225 | struct drm_property *prop; | |
226 | ||
00ae67cf JS |
227 | prop = dev_priv->plane_zpos_property; |
228 | if (!prop) { | |
92104886 GP |
229 | prop = drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, |
230 | "zpos", 0, MAX_PLANE - 1); | |
00ae67cf JS |
231 | if (!prop) |
232 | return; | |
233 | ||
234 | dev_priv->plane_zpos_property = prop; | |
235 | } | |
236 | ||
6e2a3b66 | 237 | drm_object_attach_property(&plane->base, prop, zpos); |
00ae67cf JS |
238 | } |
239 | ||
7ee14cdc GP |
240 | int exynos_plane_init(struct drm_device *dev, |
241 | struct exynos_drm_plane *exynos_plane, | |
6e2a3b66 GP |
242 | unsigned long possible_crtcs, enum drm_plane_type type, |
243 | unsigned int zpos) | |
864ee9e6 | 244 | { |
b5d2eb3b | 245 | int err; |
864ee9e6 | 246 | |
72ed6ccd AH |
247 | err = drm_universal_plane_init(dev, &exynos_plane->base, possible_crtcs, |
248 | &exynos_plane_funcs, formats, | |
249 | ARRAY_SIZE(formats), type); | |
b5d2eb3b JS |
250 | if (err) { |
251 | DRM_ERROR("failed to initialize plane\n"); | |
7ee14cdc | 252 | return err; |
b5d2eb3b JS |
253 | } |
254 | ||
43dbdad2 GP |
255 | drm_plane_helper_add(&exynos_plane->base, &plane_helper_funcs); |
256 | ||
6e2a3b66 GP |
257 | exynos_plane->zpos = zpos; |
258 | ||
259 | if (type == DRM_PLANE_TYPE_OVERLAY) | |
260 | exynos_plane_attach_zpos_property(&exynos_plane->base, zpos); | |
864ee9e6 | 261 | |
7ee14cdc | 262 | return 0; |
864ee9e6 | 263 | } |