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cd5351f4 RC |
1 | /* |
2 | * drivers/staging/omapdrm/omap_encoder.c | |
3 | * | |
4 | * Copyright (C) 2011 Texas Instruments | |
5 | * Author: Rob Clark <rob@ti.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published by | |
9 | * the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "omap_drv.h" | |
21 | ||
22 | #include "drm_crtc.h" | |
23 | #include "drm_crtc_helper.h" | |
24 | ||
25 | /* | |
26 | * encoder funcs | |
27 | */ | |
28 | ||
29 | #define to_omap_encoder(x) container_of(x, struct omap_encoder, base) | |
30 | ||
31 | struct omap_encoder { | |
32 | struct drm_encoder base; | |
33 | struct omap_overlay_manager *mgr; | |
34 | }; | |
35 | ||
36 | static void omap_encoder_destroy(struct drm_encoder *encoder) | |
37 | { | |
38 | struct omap_encoder *omap_encoder = to_omap_encoder(encoder); | |
39 | DBG("%s", omap_encoder->mgr->name); | |
40 | drm_encoder_cleanup(encoder); | |
41 | kfree(omap_encoder); | |
42 | } | |
43 | ||
44 | static void omap_encoder_dpms(struct drm_encoder *encoder, int mode) | |
45 | { | |
46 | struct omap_encoder *omap_encoder = to_omap_encoder(encoder); | |
47 | DBG("%s: %d", omap_encoder->mgr->name, mode); | |
48 | } | |
49 | ||
50 | static bool omap_encoder_mode_fixup(struct drm_encoder *encoder, | |
e811f5ae | 51 | const struct drm_display_mode *mode, |
cd5351f4 RC |
52 | struct drm_display_mode *adjusted_mode) |
53 | { | |
54 | struct omap_encoder *omap_encoder = to_omap_encoder(encoder); | |
55 | DBG("%s", omap_encoder->mgr->name); | |
56 | return true; | |
57 | } | |
58 | ||
59 | static void omap_encoder_mode_set(struct drm_encoder *encoder, | |
60 | struct drm_display_mode *mode, | |
61 | struct drm_display_mode *adjusted_mode) | |
62 | { | |
63 | struct omap_encoder *omap_encoder = to_omap_encoder(encoder); | |
64 | struct drm_device *dev = encoder->dev; | |
65 | struct omap_drm_private *priv = dev->dev_private; | |
66 | int i; | |
67 | ||
68 | mode = adjusted_mode; | |
69 | ||
70 | DBG("%s: set mode: %dx%d", omap_encoder->mgr->name, | |
71 | mode->hdisplay, mode->vdisplay); | |
72 | ||
73 | for (i = 0; i < priv->num_connectors; i++) { | |
74 | struct drm_connector *connector = priv->connectors[i]; | |
582bc28c | 75 | if (connector->encoder == encoder) |
cd5351f4 | 76 | omap_connector_mode_set(connector, mode); |
582bc28c | 77 | |
cd5351f4 RC |
78 | } |
79 | } | |
80 | ||
81 | static void omap_encoder_prepare(struct drm_encoder *encoder) | |
82 | { | |
83 | struct omap_encoder *omap_encoder = to_omap_encoder(encoder); | |
84 | struct drm_encoder_helper_funcs *encoder_funcs = | |
85 | encoder->helper_private; | |
86 | DBG("%s", omap_encoder->mgr->name); | |
87 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); | |
88 | } | |
89 | ||
90 | static void omap_encoder_commit(struct drm_encoder *encoder) | |
91 | { | |
92 | struct omap_encoder *omap_encoder = to_omap_encoder(encoder); | |
93 | struct drm_encoder_helper_funcs *encoder_funcs = | |
94 | encoder->helper_private; | |
95 | DBG("%s", omap_encoder->mgr->name); | |
96 | omap_encoder->mgr->apply(omap_encoder->mgr); | |
97 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
98 | } | |
99 | ||
100 | static const struct drm_encoder_funcs omap_encoder_funcs = { | |
101 | .destroy = omap_encoder_destroy, | |
102 | }; | |
103 | ||
104 | static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = { | |
105 | .dpms = omap_encoder_dpms, | |
106 | .mode_fixup = omap_encoder_mode_fixup, | |
107 | .mode_set = omap_encoder_mode_set, | |
108 | .prepare = omap_encoder_prepare, | |
109 | .commit = omap_encoder_commit, | |
110 | }; | |
111 | ||
112 | struct omap_overlay_manager *omap_encoder_get_manager( | |
113 | struct drm_encoder *encoder) | |
114 | { | |
115 | struct omap_encoder *omap_encoder = to_omap_encoder(encoder); | |
116 | return omap_encoder->mgr; | |
117 | } | |
118 | ||
119 | /* initialize encoder */ | |
120 | struct drm_encoder *omap_encoder_init(struct drm_device *dev, | |
121 | struct omap_overlay_manager *mgr) | |
122 | { | |
123 | struct drm_encoder *encoder = NULL; | |
124 | struct omap_encoder *omap_encoder; | |
125 | struct omap_overlay_manager_info info; | |
126 | int ret; | |
127 | ||
128 | DBG("%s", mgr->name); | |
129 | ||
130 | omap_encoder = kzalloc(sizeof(*omap_encoder), GFP_KERNEL); | |
131 | if (!omap_encoder) { | |
132 | dev_err(dev->dev, "could not allocate encoder\n"); | |
133 | goto fail; | |
134 | } | |
135 | ||
136 | omap_encoder->mgr = mgr; | |
137 | encoder = &omap_encoder->base; | |
138 | ||
139 | drm_encoder_init(dev, encoder, &omap_encoder_funcs, | |
140 | DRM_MODE_ENCODER_TMDS); | |
141 | drm_encoder_helper_add(encoder, &omap_encoder_helper_funcs); | |
142 | ||
143 | mgr->get_manager_info(mgr, &info); | |
144 | ||
145 | /* TODO: fix hard-coded setup.. */ | |
146 | info.default_color = 0x00000000; | |
147 | info.trans_key = 0x00000000; | |
148 | info.trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST; | |
149 | info.trans_enabled = false; | |
150 | ||
151 | ret = mgr->set_manager_info(mgr, &info); | |
152 | if (ret) { | |
153 | dev_err(dev->dev, "could not set manager info\n"); | |
154 | goto fail; | |
155 | } | |
156 | ||
157 | ret = mgr->apply(mgr); | |
158 | if (ret) { | |
159 | dev_err(dev->dev, "could not apply\n"); | |
160 | goto fail; | |
161 | } | |
162 | ||
163 | return encoder; | |
164 | ||
165 | fail: | |
582bc28c | 166 | if (encoder) |
65b0bd06 | 167 | omap_encoder_destroy(encoder); |
cd5351f4 RC |
168 | |
169 | return NULL; | |
170 | } |