Commit | Line | Data |
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1c248b7d ID |
1 | /* exynos_drm_encoder.c |
2 | * | |
3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. | |
4 | * Authors: | |
5 | * Inki Dae <inki.dae@samsung.com> | |
6 | * Joonyoung Shim <jy0922.shim@samsung.com> | |
7 | * Seung-Woo Kim <sw0312.kim@samsung.com> | |
8 | * | |
d81aecb5 ID |
9 | * This program is free software; you can redistribute it and/or modify it |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
1c248b7d ID |
13 | */ |
14 | ||
760285e7 DH |
15 | #include <drm/drmP.h> |
16 | #include <drm/drm_crtc_helper.h> | |
1c248b7d ID |
17 | |
18 | #include "exynos_drm_drv.h" | |
1c248b7d ID |
19 | #include "exynos_drm_encoder.h" |
20 | ||
21 | #define to_exynos_encoder(x) container_of(x, struct exynos_drm_encoder,\ | |
22 | drm_encoder) | |
23 | ||
24 | /* | |
25 | * exynos specific encoder structure. | |
26 | * | |
27 | * @drm_encoder: encoder object. | |
080be03d | 28 | * @display: the display structure that maps to this encoder |
1c248b7d ID |
29 | */ |
30 | struct exynos_drm_encoder { | |
31 | struct drm_encoder drm_encoder; | |
080be03d | 32 | struct exynos_drm_display *display; |
1c248b7d ID |
33 | }; |
34 | ||
1c248b7d ID |
35 | static bool |
36 | exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder, | |
e811f5ae | 37 | const struct drm_display_mode *mode, |
1c248b7d ID |
38 | struct drm_display_mode *adjusted_mode) |
39 | { | |
1de425b0 | 40 | struct drm_device *dev = encoder->dev; |
080be03d SP |
41 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); |
42 | struct exynos_drm_display *display = exynos_encoder->display; | |
1de425b0 | 43 | struct drm_connector *connector; |
1de425b0 | 44 | |
1de425b0 | 45 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
080be03d SP |
46 | if (connector->encoder != encoder) |
47 | continue; | |
48 | ||
49 | if (display->ops->mode_fixup) | |
50 | display->ops->mode_fixup(display, connector, mode, | |
51 | adjusted_mode); | |
1de425b0 | 52 | } |
1c248b7d ID |
53 | |
54 | return true; | |
55 | } | |
56 | ||
57 | static void exynos_drm_encoder_mode_set(struct drm_encoder *encoder, | |
58 | struct drm_display_mode *mode, | |
59 | struct drm_display_mode *adjusted_mode) | |
60 | { | |
a9c4cd21 SP |
61 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); |
62 | struct exynos_drm_display *display = exynos_encoder->display; | |
1b85a071 | 63 | |
a9c4cd21 SP |
64 | if (display->ops->mode_set) |
65 | display->ops->mode_set(display, adjusted_mode); | |
1c248b7d ID |
66 | } |
67 | ||
63498e30 | 68 | static void exynos_drm_encoder_enable(struct drm_encoder *encoder) |
1c248b7d | 69 | { |
44c91697 | 70 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); |
080be03d | 71 | struct exynos_drm_display *display = exynos_encoder->display; |
1c248b7d | 72 | |
b6595dc7 GP |
73 | if (display->ops->enable) |
74 | display->ops->enable(display); | |
1daa892c | 75 | |
080be03d SP |
76 | if (display->ops->commit) |
77 | display->ops->commit(display); | |
1daa892c ID |
78 | } |
79 | ||
bcf4cef9 ID |
80 | static void exynos_drm_encoder_disable(struct drm_encoder *encoder) |
81 | { | |
63498e30 GP |
82 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); |
83 | struct exynos_drm_display *display = exynos_encoder->display; | |
bcf4cef9 | 84 | |
b6595dc7 GP |
85 | if (display->ops->disable) |
86 | display->ops->disable(display); | |
bcf4cef9 ID |
87 | } |
88 | ||
1c248b7d | 89 | static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = { |
1c248b7d ID |
90 | .mode_fixup = exynos_drm_encoder_mode_fixup, |
91 | .mode_set = exynos_drm_encoder_mode_set, | |
63498e30 | 92 | .enable = exynos_drm_encoder_enable, |
bcf4cef9 | 93 | .disable = exynos_drm_encoder_disable, |
1c248b7d ID |
94 | }; |
95 | ||
96 | static void exynos_drm_encoder_destroy(struct drm_encoder *encoder) | |
97 | { | |
080be03d | 98 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); |
1c248b7d ID |
99 | |
100 | drm_encoder_cleanup(encoder); | |
1c248b7d ID |
101 | kfree(exynos_encoder); |
102 | } | |
103 | ||
104 | static struct drm_encoder_funcs exynos_encoder_funcs = { | |
105 | .destroy = exynos_drm_encoder_destroy, | |
106 | }; | |
107 | ||
d1fa72d0 | 108 | void exynos_drm_encoder_setup(struct drm_device *dev) |
d081f566 | 109 | { |
d1fa72d0 | 110 | struct drm_encoder *encoder; |
d081f566 ID |
111 | unsigned int clone_mask = 0; |
112 | int cnt = 0; | |
113 | ||
d1fa72d0 GP |
114 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
115 | clone_mask |= (1 << (cnt++)); | |
d081f566 | 116 | |
d081f566 | 117 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
d1fa72d0 | 118 | encoder->possible_clones = clone_mask; |
d081f566 ID |
119 | } |
120 | ||
1c248b7d ID |
121 | struct drm_encoder * |
122 | exynos_drm_encoder_create(struct drm_device *dev, | |
080be03d | 123 | struct exynos_drm_display *display, |
3f283d93 | 124 | unsigned long possible_crtcs) |
1c248b7d ID |
125 | { |
126 | struct drm_encoder *encoder; | |
127 | struct exynos_drm_encoder *exynos_encoder; | |
128 | ||
080be03d | 129 | if (!possible_crtcs) |
1c248b7d ID |
130 | return NULL; |
131 | ||
132 | exynos_encoder = kzalloc(sizeof(*exynos_encoder), GFP_KERNEL); | |
38bb5253 | 133 | if (!exynos_encoder) |
1c248b7d | 134 | return NULL; |
1c248b7d | 135 | |
080be03d | 136 | exynos_encoder->display = display; |
1c248b7d ID |
137 | encoder = &exynos_encoder->drm_encoder; |
138 | encoder->possible_crtcs = possible_crtcs; | |
139 | ||
140 | DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs); | |
141 | ||
142 | drm_encoder_init(dev, encoder, &exynos_encoder_funcs, | |
143 | DRM_MODE_ENCODER_TMDS); | |
144 | ||
145 | drm_encoder_helper_add(encoder, &exynos_encoder_helper_funcs); | |
146 | ||
147 | DRM_DEBUG_KMS("encoder has been created\n"); | |
148 | ||
149 | return encoder; | |
150 | } | |
151 | ||
080be03d | 152 | struct exynos_drm_display *exynos_drm_get_display(struct drm_encoder *encoder) |
1c248b7d | 153 | { |
080be03d | 154 | return to_exynos_encoder(encoder)->display; |
d249ce02 | 155 | } |