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1 | /* |
2 | * Copyright 2007-8 Advanced Micro Devices, Inc. | |
3 | * Copyright 2008 Red Hat Inc. | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
21 | * OTHER DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: Dave Airlie | |
24 | * Alex Deucher | |
25 | */ | |
26 | #include <drm/drmP.h> | |
27 | #include <drm/drm_crtc_helper.h> | |
28 | #include <drm/amdgpu_drm.h> | |
29 | #include "amdgpu.h" | |
30 | #include "amdgpu_connectors.h" | |
31 | #include "atom.h" | |
32 | #include "atombios_encoders.h" | |
33 | ||
34 | void | |
35 | amdgpu_link_encoder_connector(struct drm_device *dev) | |
36 | { | |
37 | struct amdgpu_device *adev = dev->dev_private; | |
38 | struct drm_connector *connector; | |
39 | struct amdgpu_connector *amdgpu_connector; | |
40 | struct drm_encoder *encoder; | |
41 | struct amdgpu_encoder *amdgpu_encoder; | |
42 | ||
43 | /* walk the list and link encoders to connectors */ | |
44 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
45 | amdgpu_connector = to_amdgpu_connector(connector); | |
46 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
47 | amdgpu_encoder = to_amdgpu_encoder(encoder); | |
48 | if (amdgpu_encoder->devices & amdgpu_connector->devices) { | |
49 | drm_mode_connector_attach_encoder(connector, encoder); | |
50 | if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { | |
51 | amdgpu_atombios_encoder_init_backlight(amdgpu_encoder, connector); | |
52 | adev->mode_info.bl_encoder = amdgpu_encoder; | |
53 | } | |
54 | } | |
55 | } | |
56 | } | |
57 | } | |
58 | ||
59 | void amdgpu_encoder_set_active_device(struct drm_encoder *encoder) | |
60 | { | |
61 | struct drm_device *dev = encoder->dev; | |
62 | struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); | |
63 | struct drm_connector *connector; | |
64 | ||
65 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
66 | if (connector->encoder == encoder) { | |
67 | struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); | |
68 | amdgpu_encoder->active_device = amdgpu_encoder->devices & amdgpu_connector->devices; | |
69 | DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n", | |
70 | amdgpu_encoder->active_device, amdgpu_encoder->devices, | |
71 | amdgpu_connector->devices, encoder->encoder_type); | |
72 | } | |
73 | } | |
74 | } | |
75 | ||
76 | struct drm_connector * | |
77 | amdgpu_get_connector_for_encoder(struct drm_encoder *encoder) | |
78 | { | |
79 | struct drm_device *dev = encoder->dev; | |
80 | struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); | |
81 | struct drm_connector *connector; | |
82 | struct amdgpu_connector *amdgpu_connector; | |
83 | ||
84 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
85 | amdgpu_connector = to_amdgpu_connector(connector); | |
86 | if (amdgpu_encoder->active_device & amdgpu_connector->devices) | |
87 | return connector; | |
88 | } | |
89 | return NULL; | |
90 | } | |
91 | ||
92 | struct drm_connector * | |
93 | amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder) | |
94 | { | |
95 | struct drm_device *dev = encoder->dev; | |
96 | struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); | |
97 | struct drm_connector *connector; | |
98 | struct amdgpu_connector *amdgpu_connector; | |
99 | ||
100 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
101 | amdgpu_connector = to_amdgpu_connector(connector); | |
102 | if (amdgpu_encoder->devices & amdgpu_connector->devices) | |
103 | return connector; | |
104 | } | |
105 | return NULL; | |
106 | } | |
107 | ||
108 | struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder) | |
109 | { | |
110 | struct drm_device *dev = encoder->dev; | |
111 | struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); | |
112 | struct drm_encoder *other_encoder; | |
113 | struct amdgpu_encoder *other_amdgpu_encoder; | |
114 | ||
115 | if (amdgpu_encoder->is_ext_encoder) | |
116 | return NULL; | |
117 | ||
118 | list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) { | |
119 | if (other_encoder == encoder) | |
120 | continue; | |
121 | other_amdgpu_encoder = to_amdgpu_encoder(other_encoder); | |
122 | if (other_amdgpu_encoder->is_ext_encoder && | |
123 | (amdgpu_encoder->devices & other_amdgpu_encoder->devices)) | |
124 | return other_encoder; | |
125 | } | |
126 | return NULL; | |
127 | } | |
128 | ||
129 | u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder) | |
130 | { | |
131 | struct drm_encoder *other_encoder = amdgpu_get_external_encoder(encoder); | |
132 | ||
133 | if (other_encoder) { | |
134 | struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(other_encoder); | |
135 | ||
136 | switch (amdgpu_encoder->encoder_id) { | |
137 | case ENCODER_OBJECT_ID_TRAVIS: | |
138 | case ENCODER_OBJECT_ID_NUTMEG: | |
139 | return amdgpu_encoder->encoder_id; | |
140 | default: | |
141 | return ENCODER_OBJECT_ID_NONE; | |
142 | } | |
143 | } | |
144 | return ENCODER_OBJECT_ID_NONE; | |
145 | } | |
146 | ||
147 | void amdgpu_panel_mode_fixup(struct drm_encoder *encoder, | |
148 | struct drm_display_mode *adjusted_mode) | |
149 | { | |
150 | struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); | |
151 | struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; | |
152 | unsigned hblank = native_mode->htotal - native_mode->hdisplay; | |
153 | unsigned vblank = native_mode->vtotal - native_mode->vdisplay; | |
154 | unsigned hover = native_mode->hsync_start - native_mode->hdisplay; | |
155 | unsigned vover = native_mode->vsync_start - native_mode->vdisplay; | |
156 | unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start; | |
157 | unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start; | |
158 | ||
159 | adjusted_mode->clock = native_mode->clock; | |
160 | adjusted_mode->flags = native_mode->flags; | |
161 | ||
162 | adjusted_mode->hdisplay = native_mode->hdisplay; | |
163 | adjusted_mode->vdisplay = native_mode->vdisplay; | |
164 | ||
165 | adjusted_mode->htotal = native_mode->hdisplay + hblank; | |
166 | adjusted_mode->hsync_start = native_mode->hdisplay + hover; | |
167 | adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width; | |
168 | ||
169 | adjusted_mode->vtotal = native_mode->vdisplay + vblank; | |
170 | adjusted_mode->vsync_start = native_mode->vdisplay + vover; | |
171 | adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width; | |
172 | ||
173 | drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); | |
174 | ||
175 | adjusted_mode->crtc_hdisplay = native_mode->hdisplay; | |
176 | adjusted_mode->crtc_vdisplay = native_mode->vdisplay; | |
177 | ||
178 | adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank; | |
179 | adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover; | |
180 | adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width; | |
181 | ||
182 | adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank; | |
183 | adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover; | |
184 | adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width; | |
185 | ||
186 | } | |
187 | ||
188 | bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder, | |
189 | u32 pixel_clock) | |
190 | { | |
191 | struct drm_connector *connector; | |
192 | struct amdgpu_connector *amdgpu_connector; | |
193 | struct amdgpu_connector_atom_dig *dig_connector; | |
194 | ||
195 | connector = amdgpu_get_connector_for_encoder(encoder); | |
196 | /* if we don't have an active device yet, just use one of | |
197 | * the connectors tied to the encoder. | |
198 | */ | |
199 | if (!connector) | |
200 | connector = amdgpu_get_connector_for_encoder_init(encoder); | |
201 | amdgpu_connector = to_amdgpu_connector(connector); | |
202 | ||
203 | switch (connector->connector_type) { | |
204 | case DRM_MODE_CONNECTOR_DVII: | |
205 | case DRM_MODE_CONNECTOR_HDMIB: | |
206 | if (amdgpu_connector->use_digital) { | |
207 | /* HDMI 1.3 supports up to 340 Mhz over single link */ | |
208 | if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) { | |
209 | if (pixel_clock > 340000) | |
210 | return true; | |
211 | else | |
212 | return false; | |
213 | } else { | |
214 | if (pixel_clock > 165000) | |
215 | return true; | |
216 | else | |
217 | return false; | |
218 | } | |
219 | } else | |
220 | return false; | |
221 | case DRM_MODE_CONNECTOR_DVID: | |
222 | case DRM_MODE_CONNECTOR_HDMIA: | |
223 | case DRM_MODE_CONNECTOR_DisplayPort: | |
224 | dig_connector = amdgpu_connector->con_priv; | |
225 | if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || | |
226 | (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) | |
227 | return false; | |
228 | else { | |
229 | /* HDMI 1.3 supports up to 340 Mhz over single link */ | |
230 | if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) { | |
231 | if (pixel_clock > 340000) | |
232 | return true; | |
233 | else | |
234 | return false; | |
235 | } else { | |
236 | if (pixel_clock > 165000) | |
237 | return true; | |
238 | else | |
239 | return false; | |
240 | } | |
241 | } | |
242 | default: | |
243 | return false; | |
244 | } | |
245 | } |