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 <drm/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
[] = {
36 * This function is to get X or Y size shown via screen. This needs length and
37 * start position of CRTC.
40 * CRTC ----------------
43 * There are six cases from a to b.
45 * <----- SCREEN ----->
47 * ----------|------------------|----------
51 * c --------------------------
56 static int exynos_plane_get_size(int start
, unsigned length
, unsigned last
)
58 int end
= start
+ length
;
63 size
= min_t(unsigned, end
, last
);
64 } else if (start
<= last
) {
65 size
= min_t(unsigned, last
- start
, length
);
71 int exynos_plane_mode_set(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
72 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
73 unsigned int crtc_w
, unsigned int crtc_h
,
74 uint32_t src_x
, uint32_t src_y
,
75 uint32_t src_w
, uint32_t src_h
)
77 struct exynos_plane
*exynos_plane
= to_exynos_plane(plane
);
78 struct exynos_drm_overlay
*overlay
= &exynos_plane
->overlay
;
79 unsigned int actual_w
;
80 unsigned int actual_h
;
84 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
86 nr
= exynos_drm_fb_get_buf_cnt(fb
);
87 for (i
= 0; i
< nr
; i
++) {
88 struct exynos_drm_gem_buf
*buffer
= exynos_drm_fb_buffer(fb
, i
);
91 DRM_LOG_KMS("buffer is null\n");
95 overlay
->dma_addr
[i
] = buffer
->dma_addr
;
96 overlay
->vaddr
[i
] = buffer
->kvaddr
;
98 DRM_DEBUG_KMS("buffer: %d, vaddr = 0x%lx, dma_addr = 0x%lx\n",
99 i
, (unsigned long)overlay
->vaddr
[i
],
100 (unsigned long)overlay
->dma_addr
[i
]);
103 actual_w
= exynos_plane_get_size(crtc_x
, crtc_w
, crtc
->mode
.hdisplay
);
104 actual_h
= exynos_plane_get_size(crtc_y
, crtc_h
, crtc
->mode
.vdisplay
);
122 /* set drm framebuffer data. */
123 overlay
->fb_x
= src_x
;
124 overlay
->fb_y
= src_y
;
125 overlay
->fb_width
= fb
->width
;
126 overlay
->fb_height
= fb
->height
;
127 overlay
->src_width
= src_w
;
128 overlay
->src_height
= src_h
;
129 overlay
->bpp
= fb
->bits_per_pixel
;
130 overlay
->pitch
= fb
->pitches
[0];
131 overlay
->pixel_format
= fb
->pixel_format
;
133 /* set overlay range to be displayed. */
134 overlay
->crtc_x
= crtc_x
;
135 overlay
->crtc_y
= crtc_y
;
136 overlay
->crtc_width
= actual_w
;
137 overlay
->crtc_height
= actual_h
;
139 /* set drm mode data. */
140 overlay
->mode_width
= crtc
->mode
.hdisplay
;
141 overlay
->mode_height
= crtc
->mode
.vdisplay
;
142 overlay
->refresh
= crtc
->mode
.vrefresh
;
143 overlay
->scan_flag
= crtc
->mode
.flags
;
145 DRM_DEBUG_KMS("overlay : offset_x/y(%d,%d), width/height(%d,%d)",
146 overlay
->crtc_x
, overlay
->crtc_y
,
147 overlay
->crtc_width
, overlay
->crtc_height
);
149 exynos_drm_fn_encoder(crtc
, overlay
, exynos_drm_encoder_plane_mode_set
);
154 void exynos_plane_commit(struct drm_plane
*plane
)
156 struct exynos_plane
*exynos_plane
= to_exynos_plane(plane
);
157 struct exynos_drm_overlay
*overlay
= &exynos_plane
->overlay
;
159 exynos_drm_fn_encoder(plane
->crtc
, &overlay
->zpos
,
160 exynos_drm_encoder_plane_commit
);
163 void exynos_plane_dpms(struct drm_plane
*plane
, int mode
)
165 struct exynos_plane
*exynos_plane
= to_exynos_plane(plane
);
166 struct exynos_drm_overlay
*overlay
= &exynos_plane
->overlay
;
168 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
170 if (mode
== DRM_MODE_DPMS_ON
) {
171 if (exynos_plane
->enabled
)
174 exynos_drm_fn_encoder(plane
->crtc
, &overlay
->zpos
,
175 exynos_drm_encoder_plane_enable
);
177 exynos_plane
->enabled
= true;
179 if (!exynos_plane
->enabled
)
182 exynos_drm_fn_encoder(plane
->crtc
, &overlay
->zpos
,
183 exynos_drm_encoder_plane_disable
);
185 exynos_plane
->enabled
= false;
190 exynos_update_plane(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
191 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
192 unsigned int crtc_w
, unsigned int crtc_h
,
193 uint32_t src_x
, uint32_t src_y
,
194 uint32_t src_w
, uint32_t src_h
)
198 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
200 ret
= exynos_plane_mode_set(plane
, crtc
, fb
, crtc_x
, crtc_y
,
201 crtc_w
, crtc_h
, src_x
>> 16, src_y
>> 16,
202 src_w
>> 16, src_h
>> 16);
208 exynos_plane_commit(plane
);
209 exynos_plane_dpms(plane
, DRM_MODE_DPMS_ON
);
214 static int exynos_disable_plane(struct drm_plane
*plane
)
216 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
218 exynos_plane_dpms(plane
, DRM_MODE_DPMS_OFF
);
223 static void exynos_plane_destroy(struct drm_plane
*plane
)
225 struct exynos_plane
*exynos_plane
= to_exynos_plane(plane
);
227 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
229 exynos_disable_plane(plane
);
230 drm_plane_cleanup(plane
);
234 static int exynos_plane_set_property(struct drm_plane
*plane
,
235 struct drm_property
*property
,
238 struct drm_device
*dev
= plane
->dev
;
239 struct exynos_plane
*exynos_plane
= to_exynos_plane(plane
);
240 struct exynos_drm_private
*dev_priv
= dev
->dev_private
;
242 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
244 if (property
== dev_priv
->plane_zpos_property
) {
245 exynos_plane
->overlay
.zpos
= val
;
252 static struct drm_plane_funcs exynos_plane_funcs
= {
253 .update_plane
= exynos_update_plane
,
254 .disable_plane
= exynos_disable_plane
,
255 .destroy
= exynos_plane_destroy
,
256 .set_property
= exynos_plane_set_property
,
259 static void exynos_plane_attach_zpos_property(struct drm_plane
*plane
)
261 struct drm_device
*dev
= plane
->dev
;
262 struct exynos_drm_private
*dev_priv
= dev
->dev_private
;
263 struct drm_property
*prop
;
265 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
267 prop
= dev_priv
->plane_zpos_property
;
269 prop
= drm_property_create_range(dev
, 0, "zpos", 0,
274 dev_priv
->plane_zpos_property
= prop
;
277 drm_object_attach_property(&plane
->base
, prop
, 0);
280 struct drm_plane
*exynos_plane_init(struct drm_device
*dev
,
281 unsigned int possible_crtcs
, bool priv
)
283 struct exynos_plane
*exynos_plane
;
286 DRM_DEBUG_KMS("[%d] %s\n", __LINE__
, __func__
);
288 exynos_plane
= kzalloc(sizeof(struct exynos_plane
), GFP_KERNEL
);
290 DRM_ERROR("failed to allocate plane\n");
294 err
= drm_plane_init(dev
, &exynos_plane
->base
, possible_crtcs
,
295 &exynos_plane_funcs
, formats
, ARRAY_SIZE(formats
),
298 DRM_ERROR("failed to initialize plane\n");
304 exynos_plane
->overlay
.zpos
= DEFAULT_ZPOS
;
306 exynos_plane_attach_zpos_property(&exynos_plane
->base
);
308 return &exynos_plane
->base
;