2 * Copyright (C) 2011 Samsung Electronics Co.Ltd
3 * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
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.
14 #include "exynos_drm.h"
15 #include "exynos_drm_drv.h"
16 #include "exynos_drm_encoder.h"
17 #include "exynos_drm_fb.h"
18 #include "exynos_drm_gem.h"
20 #define to_exynos_plane(x) container_of(x, struct exynos_plane, base)
23 struct drm_plane base;
24 struct exynos_drm_overlay overlay;
28 static const uint32_t formats[] = {
37 * This function is to get X or Y size shown via screen. This needs length and
38 * start position of CRTC.
41 * CRTC ----------------
44 * There are six cases from a to b.
46 * <----- SCREEN ----->
48 * ----------|------------------|----------
52 * c --------------------------
57 static int exynos_plane_get_size(int start, unsigned length, unsigned last)
59 int end = start + length;
64 size = min_t(unsigned, end, last);
65 } else if (start <= last) {
66 size = min_t(unsigned, last - start, length);
72 int exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc,
73 struct drm_framebuffer *fb, int crtc_x, int crtc_y,
74 unsigned int crtc_w, unsigned int crtc_h,
75 uint32_t src_x, uint32_t src_y,
76 uint32_t src_w, uint32_t src_h)
78 struct exynos_plane *exynos_plane = to_exynos_plane(plane);
79 struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
80 unsigned int actual_w;
81 unsigned int actual_h;
85 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
87 nr = exynos_drm_format_num_buffers(fb->pixel_format);
88 for (i = 0; i < nr; i++) {
89 struct exynos_drm_gem_buf *buffer = exynos_drm_fb_buffer(fb, i);
92 DRM_LOG_KMS("buffer is null\n");
96 overlay->dma_addr[i] = buffer->dma_addr;
97 overlay->vaddr[i] = buffer->kvaddr;
99 DRM_DEBUG_KMS("buffer: %d, vaddr = 0x%lx, dma_addr = 0x%lx\n",
100 i, (unsigned long)overlay->vaddr[i],
101 (unsigned long)overlay->dma_addr[i]);
104 actual_w = exynos_plane_get_size(crtc_x, crtc_w, crtc->mode.hdisplay);
105 actual_h = exynos_plane_get_size(crtc_y, crtc_h, crtc->mode.vdisplay);
123 /* set drm framebuffer data. */
124 overlay->fb_x = src_x;
125 overlay->fb_y = src_y;
126 overlay->fb_width = fb->width;
127 overlay->fb_height = fb->height;
128 overlay->src_width = src_w;
129 overlay->src_height = src_h;
130 overlay->bpp = fb->bits_per_pixel;
131 overlay->pitch = fb->pitches[0];
132 overlay->pixel_format = fb->pixel_format;
134 /* set overlay range to be displayed. */
135 overlay->crtc_x = crtc_x;
136 overlay->crtc_y = crtc_y;
137 overlay->crtc_width = actual_w;
138 overlay->crtc_height = actual_h;
140 /* set drm mode data. */
141 overlay->mode_width = crtc->mode.hdisplay;
142 overlay->mode_height = crtc->mode.vdisplay;
143 overlay->refresh = crtc->mode.vrefresh;
144 overlay->scan_flag = crtc->mode.flags;
146 DRM_DEBUG_KMS("overlay : offset_x/y(%d,%d), width/height(%d,%d)",
147 overlay->crtc_x, overlay->crtc_y,
148 overlay->crtc_width, overlay->crtc_height);
150 exynos_drm_fn_encoder(crtc, overlay, exynos_drm_encoder_plane_mode_set);
155 void exynos_plane_commit(struct drm_plane *plane)
157 struct exynos_plane *exynos_plane = to_exynos_plane(plane);
158 struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
160 exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
161 exynos_drm_encoder_plane_commit);
164 void exynos_plane_dpms(struct drm_plane *plane, int mode)
166 struct exynos_plane *exynos_plane = to_exynos_plane(plane);
167 struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
169 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
171 if (mode == DRM_MODE_DPMS_ON) {
172 if (exynos_plane->enabled)
175 exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
176 exynos_drm_encoder_plane_enable);
178 exynos_plane->enabled = true;
180 if (!exynos_plane->enabled)
183 exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
184 exynos_drm_encoder_plane_disable);
186 exynos_plane->enabled = false;
191 exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
192 struct drm_framebuffer *fb, int crtc_x, int crtc_y,
193 unsigned int crtc_w, unsigned int crtc_h,
194 uint32_t src_x, uint32_t src_y,
195 uint32_t src_w, uint32_t src_h)
199 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
201 ret = exynos_plane_mode_set(plane, crtc, fb, crtc_x, crtc_y,
202 crtc_w, crtc_h, src_x >> 16, src_y >> 16,
203 src_w >> 16, src_h >> 16);
208 plane->fb = crtc->fb;
210 exynos_plane_commit(plane);
211 exynos_plane_dpms(plane, DRM_MODE_DPMS_ON);
216 static int exynos_disable_plane(struct drm_plane *plane)
218 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
220 exynos_plane_dpms(plane, DRM_MODE_DPMS_OFF);
225 static void exynos_plane_destroy(struct drm_plane *plane)
227 struct exynos_plane *exynos_plane = to_exynos_plane(plane);
229 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
231 exynos_disable_plane(plane);
232 drm_plane_cleanup(plane);
236 static int exynos_plane_set_property(struct drm_plane *plane,
237 struct drm_property *property,
240 struct drm_device *dev = plane->dev;
241 struct exynos_plane *exynos_plane = to_exynos_plane(plane);
242 struct exynos_drm_private *dev_priv = dev->dev_private;
244 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
246 if (property == dev_priv->plane_zpos_property) {
247 exynos_plane->overlay.zpos = val;
254 static struct drm_plane_funcs exynos_plane_funcs = {
255 .update_plane = exynos_update_plane,
256 .disable_plane = exynos_disable_plane,
257 .destroy = exynos_plane_destroy,
258 .set_property = exynos_plane_set_property,
261 static void exynos_plane_attach_zpos_property(struct drm_plane *plane)
263 struct drm_device *dev = plane->dev;
264 struct exynos_drm_private *dev_priv = dev->dev_private;
265 struct drm_property *prop;
267 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
269 prop = dev_priv->plane_zpos_property;
271 prop = drm_property_create_range(dev, 0, "zpos", 0,
276 dev_priv->plane_zpos_property = prop;
279 drm_object_attach_property(&plane->base, prop, 0);
282 struct drm_plane *exynos_plane_init(struct drm_device *dev,
283 unsigned int possible_crtcs, bool priv)
285 struct exynos_plane *exynos_plane;
288 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
290 exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL);
292 DRM_ERROR("failed to allocate plane\n");
296 err = drm_plane_init(dev, &exynos_plane->base, possible_crtcs,
297 &exynos_plane_funcs, formats, ARRAY_SIZE(formats),
300 DRM_ERROR("failed to initialize plane\n");
306 exynos_plane->overlay.zpos = DEFAULT_ZPOS;
308 exynos_plane_attach_zpos_property(&exynos_plane->base);
310 return &exynos_plane->base;