Commit | Line | Data |
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96f60e37 RK |
1 | /* |
2 | * Copyright (C) 2012 Russell King | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | #include <drm/drmP.h> | |
9 | #include <drm/drm_crtc_helper.h> | |
10 | #include <drm/drm_edid.h> | |
11 | #include <drm/drm_encoder_slave.h> | |
12 | #include "armada_output.h" | |
13 | #include "armada_drm.h" | |
14 | ||
15 | struct armada_connector { | |
16 | struct drm_connector conn; | |
17 | const struct armada_output_type *type; | |
18 | }; | |
19 | ||
20 | #define drm_to_armada_conn(c) container_of(c, struct armada_connector, conn) | |
21 | ||
22 | struct drm_encoder *armada_drm_connector_encoder(struct drm_connector *conn) | |
23 | { | |
24 | struct drm_encoder *enc = conn->encoder; | |
25 | ||
26 | return enc ? enc : drm_encoder_find(conn->dev, conn->encoder_ids[0]); | |
27 | } | |
28 | ||
29 | static enum drm_connector_status armada_drm_connector_detect( | |
30 | struct drm_connector *conn, bool force) | |
31 | { | |
32 | struct armada_connector *dconn = drm_to_armada_conn(conn); | |
33 | enum drm_connector_status status = connector_status_disconnected; | |
34 | ||
35 | if (dconn->type->detect) { | |
36 | status = dconn->type->detect(conn, force); | |
37 | } else { | |
38 | struct drm_encoder *enc = armada_drm_connector_encoder(conn); | |
39 | ||
40 | if (enc) | |
41 | status = encoder_helper_funcs(enc)->detect(enc, conn); | |
42 | } | |
43 | ||
44 | return status; | |
45 | } | |
46 | ||
47 | static void armada_drm_connector_destroy(struct drm_connector *conn) | |
48 | { | |
49 | struct armada_connector *dconn = drm_to_armada_conn(conn); | |
50 | ||
51 | drm_sysfs_connector_remove(conn); | |
52 | drm_connector_cleanup(conn); | |
53 | kfree(dconn); | |
54 | } | |
55 | ||
56 | static int armada_drm_connector_set_property(struct drm_connector *conn, | |
57 | struct drm_property *property, uint64_t value) | |
58 | { | |
59 | struct armada_connector *dconn = drm_to_armada_conn(conn); | |
60 | ||
61 | if (!dconn->type->set_property) | |
62 | return -EINVAL; | |
63 | ||
64 | return dconn->type->set_property(conn, property, value); | |
65 | } | |
66 | ||
67 | static const struct drm_connector_funcs armada_drm_conn_funcs = { | |
68 | .dpms = drm_helper_connector_dpms, | |
69 | .fill_modes = drm_helper_probe_single_connector_modes, | |
70 | .detect = armada_drm_connector_detect, | |
71 | .destroy = armada_drm_connector_destroy, | |
72 | .set_property = armada_drm_connector_set_property, | |
73 | }; | |
74 | ||
75 | void armada_drm_encoder_prepare(struct drm_encoder *encoder) | |
76 | { | |
77 | encoder_helper_funcs(encoder)->dpms(encoder, DRM_MODE_DPMS_OFF); | |
78 | } | |
79 | ||
80 | void armada_drm_encoder_commit(struct drm_encoder *encoder) | |
81 | { | |
82 | encoder_helper_funcs(encoder)->dpms(encoder, DRM_MODE_DPMS_ON); | |
83 | } | |
84 | ||
85 | bool armada_drm_encoder_mode_fixup(struct drm_encoder *encoder, | |
86 | const struct drm_display_mode *mode, struct drm_display_mode *adjusted) | |
87 | { | |
88 | return true; | |
89 | } | |
90 | ||
91 | /* Shouldn't this be a generic helper function? */ | |
92 | int armada_drm_slave_encoder_mode_valid(struct drm_connector *conn, | |
93 | struct drm_display_mode *mode) | |
94 | { | |
95 | struct drm_encoder *encoder = armada_drm_connector_encoder(conn); | |
96 | int valid = MODE_BAD; | |
97 | ||
98 | if (encoder) { | |
99 | struct drm_encoder_slave *slave = to_encoder_slave(encoder); | |
100 | ||
101 | valid = slave->slave_funcs->mode_valid(encoder, mode); | |
102 | } | |
103 | return valid; | |
104 | } | |
105 | ||
106 | int armada_drm_slave_encoder_set_property(struct drm_connector *conn, | |
107 | struct drm_property *property, uint64_t value) | |
108 | { | |
109 | struct drm_encoder *encoder = armada_drm_connector_encoder(conn); | |
110 | int rc = -EINVAL; | |
111 | ||
112 | if (encoder) { | |
113 | struct drm_encoder_slave *slave = to_encoder_slave(encoder); | |
114 | ||
115 | rc = slave->slave_funcs->set_property(encoder, conn, property, | |
116 | value); | |
117 | } | |
118 | return rc; | |
119 | } | |
120 | ||
121 | int armada_output_create(struct drm_device *dev, | |
122 | const struct armada_output_type *type, const void *data) | |
123 | { | |
124 | struct armada_connector *dconn; | |
125 | int ret; | |
126 | ||
127 | dconn = kzalloc(sizeof(*dconn), GFP_KERNEL); | |
128 | if (!dconn) | |
129 | return -ENOMEM; | |
130 | ||
131 | dconn->type = type; | |
132 | ||
133 | ret = drm_connector_init(dev, &dconn->conn, &armada_drm_conn_funcs, | |
134 | type->connector_type); | |
135 | if (ret) { | |
136 | DRM_ERROR("unable to init connector\n"); | |
137 | goto err_destroy_dconn; | |
138 | } | |
139 | ||
140 | ret = type->create(&dconn->conn, data); | |
141 | if (ret) | |
142 | goto err_conn; | |
143 | ||
144 | ret = drm_sysfs_connector_add(&dconn->conn); | |
145 | if (ret) | |
146 | goto err_sysfs; | |
147 | ||
148 | return 0; | |
149 | ||
150 | err_sysfs: | |
151 | if (dconn->conn.encoder) | |
152 | dconn->conn.encoder->funcs->destroy(dconn->conn.encoder); | |
153 | err_conn: | |
154 | drm_connector_cleanup(&dconn->conn); | |
155 | err_destroy_dconn: | |
156 | kfree(dconn); | |
157 | return ret; | |
158 | } |