Commit | Line | Data |
---|---|---|
4bf8e196 LP |
1 | /* |
2 | * rcar_du_vga.c -- R-Car Display Unit VGA DAC and Connector | |
3 | * | |
4 | * Copyright (C) 2013 Renesas Corporation | |
5 | * | |
6 | * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
14 | #include <drm/drmP.h> | |
15 | #include <drm/drm_crtc.h> | |
16 | #include <drm/drm_crtc_helper.h> | |
17 | ||
18 | #include "rcar_du_drv.h" | |
19 | #include "rcar_du_kms.h" | |
20 | #include "rcar_du_vga.h" | |
21 | ||
22 | /* ----------------------------------------------------------------------------- | |
23 | * Connector | |
24 | */ | |
25 | ||
26 | static int rcar_du_vga_connector_get_modes(struct drm_connector *connector) | |
27 | { | |
28 | return 0; | |
29 | } | |
30 | ||
31 | static int rcar_du_vga_connector_mode_valid(struct drm_connector *connector, | |
32 | struct drm_display_mode *mode) | |
33 | { | |
34 | return MODE_OK; | |
35 | } | |
36 | ||
37 | static const struct drm_connector_helper_funcs connector_helper_funcs = { | |
38 | .get_modes = rcar_du_vga_connector_get_modes, | |
39 | .mode_valid = rcar_du_vga_connector_mode_valid, | |
40 | .best_encoder = rcar_du_connector_best_encoder, | |
41 | }; | |
42 | ||
43 | static void rcar_du_vga_connector_destroy(struct drm_connector *connector) | |
44 | { | |
45 | drm_sysfs_connector_remove(connector); | |
46 | drm_connector_cleanup(connector); | |
47 | } | |
48 | ||
49 | static enum drm_connector_status | |
50 | rcar_du_vga_connector_detect(struct drm_connector *connector, bool force) | |
51 | { | |
52 | return connector_status_unknown; | |
53 | } | |
54 | ||
55 | static const struct drm_connector_funcs connector_funcs = { | |
56 | .dpms = drm_helper_connector_dpms, | |
57 | .detect = rcar_du_vga_connector_detect, | |
58 | .fill_modes = drm_helper_probe_single_connector_modes, | |
59 | .destroy = rcar_du_vga_connector_destroy, | |
60 | }; | |
61 | ||
62 | static int rcar_du_vga_connector_init(struct rcar_du_device *rcdu, | |
63 | struct rcar_du_encoder *renc) | |
64 | { | |
65 | struct rcar_du_connector *rcon; | |
66 | struct drm_connector *connector; | |
67 | int ret; | |
68 | ||
69 | rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL); | |
70 | if (rcon == NULL) | |
71 | return -ENOMEM; | |
72 | ||
73 | connector = &rcon->connector; | |
74 | connector->display_info.width_mm = 0; | |
75 | connector->display_info.height_mm = 0; | |
76 | ||
77 | ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs, | |
78 | DRM_MODE_CONNECTOR_VGA); | |
79 | if (ret < 0) | |
80 | return ret; | |
81 | ||
82 | drm_connector_helper_add(connector, &connector_helper_funcs); | |
83 | ret = drm_sysfs_connector_add(connector); | |
84 | if (ret < 0) | |
85 | return ret; | |
86 | ||
87 | drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); | |
88 | drm_object_property_set_value(&connector->base, | |
89 | rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); | |
90 | ||
91 | ret = drm_mode_connector_attach_encoder(connector, &renc->encoder); | |
92 | if (ret < 0) | |
93 | return ret; | |
94 | ||
95 | connector->encoder = &renc->encoder; | |
96 | rcon->encoder = renc; | |
97 | ||
98 | return 0; | |
99 | } | |
100 | ||
101 | /* ----------------------------------------------------------------------------- | |
102 | * Encoder | |
103 | */ | |
104 | ||
105 | static void rcar_du_vga_encoder_dpms(struct drm_encoder *encoder, int mode) | |
106 | { | |
107 | } | |
108 | ||
109 | static bool rcar_du_vga_encoder_mode_fixup(struct drm_encoder *encoder, | |
110 | const struct drm_display_mode *mode, | |
111 | struct drm_display_mode *adjusted_mode) | |
112 | { | |
113 | return true; | |
114 | } | |
115 | ||
116 | static const struct drm_encoder_helper_funcs encoder_helper_funcs = { | |
117 | .dpms = rcar_du_vga_encoder_dpms, | |
118 | .mode_fixup = rcar_du_vga_encoder_mode_fixup, | |
119 | .prepare = rcar_du_encoder_mode_prepare, | |
120 | .commit = rcar_du_encoder_mode_commit, | |
121 | .mode_set = rcar_du_encoder_mode_set, | |
122 | }; | |
123 | ||
124 | static const struct drm_encoder_funcs encoder_funcs = { | |
125 | .destroy = drm_encoder_cleanup, | |
126 | }; | |
127 | ||
128 | int rcar_du_vga_init(struct rcar_du_device *rcdu, | |
129 | const struct rcar_du_encoder_vga_data *data, | |
130 | unsigned int output) | |
131 | { | |
132 | struct rcar_du_encoder *renc; | |
133 | int ret; | |
134 | ||
135 | renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL); | |
136 | if (renc == NULL) | |
137 | return -ENOMEM; | |
138 | ||
139 | renc->output = output; | |
140 | ||
141 | ret = drm_encoder_init(rcdu->ddev, &renc->encoder, &encoder_funcs, | |
142 | DRM_MODE_ENCODER_DAC); | |
143 | if (ret < 0) | |
144 | return ret; | |
145 | ||
146 | drm_encoder_helper_add(&renc->encoder, &encoder_helper_funcs); | |
147 | ||
148 | return rcar_du_vga_connector_init(rcdu, renc); | |
149 | } |