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
amdgpu_link_encoder_connector(struct drm_device * dev)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
amdgpu_encoder_set_active_device(struct drm_encoder * encoder)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 *
amdgpu_get_connector_for_encoder(struct drm_encoder * encoder)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 *
amdgpu_get_connector_for_encoder_init(struct drm_encoder * encoder)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
amdgpu_get_external_encoder(struct drm_encoder * encoder)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
amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder * encoder)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
amdgpu_panel_mode_fixup(struct drm_encoder * encoder,struct drm_display_mode * adjusted_mode)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
amdgpu_dig_monitor_is_duallink(struct drm_encoder * encoder,u32 pixel_clock)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 }
246