2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.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 version 2 as published by
7 * the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
22 struct drm_plane base;
32 #define to_mdp4_plane(x) container_of(x, struct mdp4_plane, base)
34 static struct mdp4_kms *get_kms(struct drm_plane *plane)
36 struct msm_drm_private *priv = plane->dev->dev_private;
37 return to_mdp4_kms(priv->kms);
40 static int mdp4_plane_update(struct drm_plane *plane,
41 struct drm_crtc *crtc, struct drm_framebuffer *fb,
42 int crtc_x, int crtc_y,
43 unsigned int crtc_w, unsigned int crtc_h,
44 uint32_t src_x, uint32_t src_y,
45 uint32_t src_w, uint32_t src_h)
47 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
49 mdp4_plane->enabled = true;
52 drm_framebuffer_unreference(plane->fb);
54 drm_framebuffer_reference(fb);
56 return mdp4_plane_mode_set(plane, crtc, fb,
57 crtc_x, crtc_y, crtc_w, crtc_h,
58 src_x, src_y, src_w, src_h);
61 static int mdp4_plane_disable(struct drm_plane *plane)
63 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
64 DBG("%s: TODO", mdp4_plane->name); // XXX
68 static void mdp4_plane_destroy(struct drm_plane *plane)
70 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
72 mdp4_plane_disable(plane);
73 drm_plane_cleanup(plane);
78 /* helper to install properties which are common to planes and crtcs */
79 void mdp4_plane_install_properties(struct drm_plane *plane,
80 struct drm_mode_object *obj)
85 int mdp4_plane_set_property(struct drm_plane *plane,
86 struct drm_property *property, uint64_t val)
92 static const struct drm_plane_funcs mdp4_plane_funcs = {
93 .update_plane = mdp4_plane_update,
94 .disable_plane = mdp4_plane_disable,
95 .destroy = mdp4_plane_destroy,
96 .set_property = mdp4_plane_set_property,
99 void mdp4_plane_set_scanout(struct drm_plane *plane,
100 struct drm_framebuffer *fb)
102 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
103 struct mdp4_kms *mdp4_kms = get_kms(plane);
104 enum mpd4_pipe pipe = mdp4_plane->pipe;
107 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_A(pipe),
108 MDP4_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
109 MDP4_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
111 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_B(pipe),
112 MDP4_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
113 MDP4_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
115 msm_gem_get_iova(msm_framebuffer_bo(fb, 0), mdp4_kms->id, &iova);
116 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe), iova);
121 #define MDP4_VG_PHASE_STEP_DEFAULT 0x20000000
123 int mdp4_plane_mode_set(struct drm_plane *plane,
124 struct drm_crtc *crtc, struct drm_framebuffer *fb,
125 int crtc_x, int crtc_y,
126 unsigned int crtc_w, unsigned int crtc_h,
127 uint32_t src_x, uint32_t src_y,
128 uint32_t src_w, uint32_t src_h)
130 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
131 struct mdp4_kms *mdp4_kms = get_kms(plane);
132 enum mpd4_pipe pipe = mdp4_plane->pipe;
133 const struct mdp4_format *format;
134 uint32_t op_mode = 0;
135 uint32_t phasex_step = MDP4_VG_PHASE_STEP_DEFAULT;
136 uint32_t phasey_step = MDP4_VG_PHASE_STEP_DEFAULT;
138 /* src values are in Q16 fixed point, convert to integer: */
144 if (src_w != crtc_w) {
145 op_mode |= MDP4_PIPE_OP_MODE_SCALEX_EN;
146 /* TODO calc phasex_step */
149 if (src_h != crtc_h) {
150 op_mode |= MDP4_PIPE_OP_MODE_SCALEY_EN;
151 /* TODO calc phasey_step */
154 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_SIZE(pipe),
155 MDP4_PIPE_SRC_SIZE_WIDTH(src_w) |
156 MDP4_PIPE_SRC_SIZE_HEIGHT(src_h));
158 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_XY(pipe),
159 MDP4_PIPE_SRC_XY_X(src_x) |
160 MDP4_PIPE_SRC_XY_Y(src_y));
162 mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_SIZE(pipe),
163 MDP4_PIPE_DST_SIZE_WIDTH(crtc_w) |
164 MDP4_PIPE_DST_SIZE_HEIGHT(crtc_h));
166 mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_XY(pipe),
167 MDP4_PIPE_SRC_XY_X(crtc_x) |
168 MDP4_PIPE_SRC_XY_Y(crtc_y));
170 mdp4_plane_set_scanout(plane, fb);
172 format = to_mdp4_format(msm_framebuffer_format(fb));
174 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_FORMAT(pipe),
175 MDP4_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
176 MDP4_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
177 MDP4_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
178 MDP4_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
179 COND(format->alpha_enable, MDP4_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
180 MDP4_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
181 MDP4_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
182 COND(format->unpack_tight, MDP4_PIPE_SRC_FORMAT_UNPACK_TIGHT));
184 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_UNPACK(pipe),
185 MDP4_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
186 MDP4_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
187 MDP4_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
188 MDP4_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
190 mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(pipe), op_mode);
191 mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEX_STEP(pipe), phasex_step);
192 mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEY_STEP(pipe), phasey_step);
199 static const char *pipe_names[] = {
201 "RGB1", "RGB2", "RGB3",
205 enum mpd4_pipe mdp4_plane_pipe(struct drm_plane *plane)
207 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
208 return mdp4_plane->pipe;
211 /* initialize plane */
212 struct drm_plane *mdp4_plane_init(struct drm_device *dev,
213 enum mpd4_pipe pipe_id, bool private_plane)
215 struct msm_drm_private *priv = dev->dev_private;
216 struct drm_plane *plane = NULL;
217 struct mdp4_plane *mdp4_plane;
220 mdp4_plane = kzalloc(sizeof(*mdp4_plane), GFP_KERNEL);
226 plane = &mdp4_plane->base;
228 mdp4_plane->pipe = pipe_id;
229 mdp4_plane->name = pipe_names[pipe_id];
231 drm_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, &mdp4_plane_funcs,
232 mdp4_plane->formats, mdp4_plane->nformats, private_plane);
234 mdp4_plane_install_properties(plane, &plane->base);
240 mdp4_plane_destroy(plane);