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Rev | Author | Line No. | Line |
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2330 | Serge | 1 | /* |
2 | * Copyright 2006 Dave Airlie |
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3 | * Copyright © 2006-2007 Intel Corporation |
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4 | * |
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5 | * Permission is hereby granted, free of charge, to any person obtaining a |
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6 | * copy of this software and associated documentation files (the "Software"), |
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7 | * to deal in the Software without restriction, including without limitation |
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8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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9 | * and/or sell copies of the Software, and to permit persons to whom the |
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10 | * Software is furnished to do so, subject to the following conditions: |
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11 | * |
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12 | * The above copyright notice and this permission notice (including the next |
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13 | * paragraph) shall be included in all copies or substantial portions of the |
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14 | * Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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22 | * DEALINGS IN THE SOFTWARE. |
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23 | * |
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24 | * Authors: |
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25 | * Eric Anholt |
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26 | */ |
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27 | #include |
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28 | #include |
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3031 | serge | 29 | #include |
6084 | serge | 30 | #include |
3031 | serge | 31 | #include |
2330 | Serge | 32 | #include "intel_drv.h" |
3031 | serge | 33 | #include |
2330 | Serge | 34 | #include "i915_drv.h" |
35 | #include "dvo.h" |
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36 | |||
37 | #define SIL164_ADDR 0x38 |
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38 | #define CH7xxx_ADDR 0x76 |
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39 | #define TFP410_ADDR 0x38 |
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3031 | serge | 40 | #define NS2501_ADDR 0x38 |
2330 | Serge | 41 | |
42 | static const struct intel_dvo_device intel_dvo_devices[] = { |
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43 | { |
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44 | .type = INTEL_DVO_CHIP_TMDS, |
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45 | .name = "sil164", |
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46 | .dvo_reg = DVOC, |
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47 | .slave_addr = SIL164_ADDR, |
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48 | .dev_ops = &sil164_ops, |
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49 | }, |
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50 | { |
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51 | .type = INTEL_DVO_CHIP_TMDS, |
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52 | .name = "ch7xxx", |
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53 | .dvo_reg = DVOC, |
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54 | .slave_addr = CH7xxx_ADDR, |
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55 | .dev_ops = &ch7xxx_ops, |
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56 | }, |
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57 | { |
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4104 | Serge | 58 | .type = INTEL_DVO_CHIP_TMDS, |
59 | .name = "ch7xxx", |
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60 | .dvo_reg = DVOC, |
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61 | .slave_addr = 0x75, /* For some ch7010 */ |
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62 | .dev_ops = &ch7xxx_ops, |
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63 | }, |
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64 | { |
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2330 | Serge | 65 | .type = INTEL_DVO_CHIP_LVDS, |
66 | .name = "ivch", |
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67 | .dvo_reg = DVOA, |
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68 | .slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */ |
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69 | .dev_ops = &ivch_ops, |
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70 | }, |
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71 | { |
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72 | .type = INTEL_DVO_CHIP_TMDS, |
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73 | .name = "tfp410", |
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74 | .dvo_reg = DVOC, |
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75 | .slave_addr = TFP410_ADDR, |
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76 | .dev_ops = &tfp410_ops, |
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77 | }, |
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78 | { |
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79 | .type = INTEL_DVO_CHIP_LVDS, |
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80 | .name = "ch7017", |
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81 | .dvo_reg = DVOC, |
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82 | .slave_addr = 0x75, |
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6084 | serge | 83 | .gpio = GMBUS_PIN_DPB, |
2330 | Serge | 84 | .dev_ops = &ch7017_ops, |
3031 | serge | 85 | }, |
86 | { |
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87 | .type = INTEL_DVO_CHIP_TMDS, |
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88 | .name = "ns2501", |
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5354 | serge | 89 | .dvo_reg = DVOB, |
3031 | serge | 90 | .slave_addr = NS2501_ADDR, |
91 | .dev_ops = &ns2501_ops, |
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6084 | serge | 92 | } |
2330 | Serge | 93 | }; |
94 | |||
95 | struct intel_dvo { |
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96 | struct intel_encoder base; |
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97 | |||
98 | struct intel_dvo_device dev; |
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99 | |||
6084 | serge | 100 | struct intel_connector *attached_connector; |
101 | |||
2330 | Serge | 102 | bool panel_wants_dither; |
103 | }; |
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104 | |||
4104 | Serge | 105 | static struct intel_dvo *enc_to_dvo(struct intel_encoder *encoder) |
2330 | Serge | 106 | { |
4104 | Serge | 107 | return container_of(encoder, struct intel_dvo, base); |
2330 | Serge | 108 | } |
109 | |||
110 | static struct intel_dvo *intel_attached_dvo(struct drm_connector *connector) |
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111 | { |
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4104 | Serge | 112 | return enc_to_dvo(intel_attached_encoder(connector)); |
2330 | Serge | 113 | } |
114 | |||
3031 | serge | 115 | static bool intel_dvo_connector_get_hw_state(struct intel_connector *connector) |
2330 | Serge | 116 | { |
5060 | serge | 117 | struct drm_device *dev = connector->base.dev; |
118 | struct drm_i915_private *dev_priv = dev->dev_private; |
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3031 | serge | 119 | struct intel_dvo *intel_dvo = intel_attached_dvo(&connector->base); |
5060 | serge | 120 | u32 tmp; |
3031 | serge | 121 | |
5060 | serge | 122 | tmp = I915_READ(intel_dvo->dev.dvo_reg); |
123 | |||
124 | if (!(tmp & DVO_ENABLE)) |
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125 | return false; |
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126 | |||
3031 | serge | 127 | return intel_dvo->dev.dev_ops->get_hw_state(&intel_dvo->dev); |
128 | } |
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129 | |||
130 | static bool intel_dvo_get_hw_state(struct intel_encoder *encoder, |
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131 | enum pipe *pipe) |
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132 | { |
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133 | struct drm_device *dev = encoder->base.dev; |
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134 | struct drm_i915_private *dev_priv = dev->dev_private; |
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4104 | Serge | 135 | struct intel_dvo *intel_dvo = enc_to_dvo(encoder); |
3031 | serge | 136 | u32 tmp; |
137 | |||
138 | tmp = I915_READ(intel_dvo->dev.dvo_reg); |
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139 | |||
140 | if (!(tmp & DVO_ENABLE)) |
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141 | return false; |
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142 | |||
143 | *pipe = PORT_TO_PIPE(tmp); |
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144 | |||
145 | return true; |
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146 | } |
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147 | |||
4104 | Serge | 148 | static void intel_dvo_get_config(struct intel_encoder *encoder, |
6084 | serge | 149 | struct intel_crtc_state *pipe_config) |
4104 | Serge | 150 | { |
151 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; |
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152 | struct intel_dvo *intel_dvo = enc_to_dvo(encoder); |
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153 | u32 tmp, flags = 0; |
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154 | |||
155 | tmp = I915_READ(intel_dvo->dev.dvo_reg); |
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156 | if (tmp & DVO_HSYNC_ACTIVE_HIGH) |
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157 | flags |= DRM_MODE_FLAG_PHSYNC; |
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158 | else |
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159 | flags |= DRM_MODE_FLAG_NHSYNC; |
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160 | if (tmp & DVO_VSYNC_ACTIVE_HIGH) |
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161 | flags |= DRM_MODE_FLAG_PVSYNC; |
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162 | else |
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163 | flags |= DRM_MODE_FLAG_NVSYNC; |
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164 | |||
6084 | serge | 165 | pipe_config->base.adjusted_mode.flags |= flags; |
4560 | Serge | 166 | |
6084 | serge | 167 | pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock; |
4104 | Serge | 168 | } |
169 | |||
3031 | serge | 170 | static void intel_disable_dvo(struct intel_encoder *encoder) |
171 | { |
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172 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; |
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4104 | Serge | 173 | struct intel_dvo *intel_dvo = enc_to_dvo(encoder); |
2330 | Serge | 174 | u32 dvo_reg = intel_dvo->dev.dvo_reg; |
175 | u32 temp = I915_READ(dvo_reg); |
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176 | |||
3031 | serge | 177 | intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false); |
178 | I915_WRITE(dvo_reg, temp & ~DVO_ENABLE); |
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179 | I915_READ(dvo_reg); |
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180 | } |
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181 | |||
182 | static void intel_enable_dvo(struct intel_encoder *encoder) |
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183 | { |
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184 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; |
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4104 | Serge | 185 | struct intel_dvo *intel_dvo = enc_to_dvo(encoder); |
4398 | Serge | 186 | struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); |
3031 | serge | 187 | u32 dvo_reg = intel_dvo->dev.dvo_reg; |
188 | u32 temp = I915_READ(dvo_reg); |
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189 | |||
4398 | Serge | 190 | intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev, |
6084 | serge | 191 | &crtc->config->base.mode, |
192 | &crtc->config->base.adjusted_mode); |
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4398 | Serge | 193 | |
5354 | serge | 194 | I915_WRITE(dvo_reg, temp | DVO_ENABLE); |
195 | I915_READ(dvo_reg); |
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196 | |||
3031 | serge | 197 | intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true); |
198 | } |
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199 | |||
4560 | Serge | 200 | static enum drm_mode_status |
201 | intel_dvo_mode_valid(struct drm_connector *connector, |
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6084 | serge | 202 | struct drm_display_mode *mode) |
2330 | Serge | 203 | { |
204 | struct intel_dvo *intel_dvo = intel_attached_dvo(connector); |
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6084 | serge | 205 | const struct drm_display_mode *fixed_mode = |
206 | to_intel_connector(connector)->panel.fixed_mode; |
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207 | int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; |
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208 | int target_clock = mode->clock; |
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2330 | Serge | 209 | |
210 | if (mode->flags & DRM_MODE_FLAG_DBLSCAN) |
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211 | return MODE_NO_DBLESCAN; |
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212 | |||
213 | /* XXX: Validate clock range */ |
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214 | |||
6084 | serge | 215 | if (fixed_mode) { |
216 | if (mode->hdisplay > fixed_mode->hdisplay) |
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2330 | Serge | 217 | return MODE_PANEL; |
6084 | serge | 218 | if (mode->vdisplay > fixed_mode->vdisplay) |
2330 | Serge | 219 | return MODE_PANEL; |
6084 | serge | 220 | |
221 | target_clock = fixed_mode->clock; |
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2330 | Serge | 222 | } |
223 | |||
6084 | serge | 224 | if (target_clock > max_dotclk) |
225 | return MODE_CLOCK_HIGH; |
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226 | |||
2330 | Serge | 227 | return intel_dvo->dev.dev_ops->mode_valid(&intel_dvo->dev, mode); |
228 | } |
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229 | |||
4104 | Serge | 230 | static bool intel_dvo_compute_config(struct intel_encoder *encoder, |
6084 | serge | 231 | struct intel_crtc_state *pipe_config) |
2330 | Serge | 232 | { |
4104 | Serge | 233 | struct intel_dvo *intel_dvo = enc_to_dvo(encoder); |
6084 | serge | 234 | const struct drm_display_mode *fixed_mode = |
235 | intel_dvo->attached_connector->panel.fixed_mode; |
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236 | struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
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2330 | Serge | 237 | |
238 | /* If we have timings from the BIOS for the panel, put them in |
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239 | * to the adjusted mode. The CRTC will be set up for this mode, |
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240 | * with the panel scaling set up to source from the H/VDisplay |
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241 | * of the original mode. |
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242 | */ |
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6084 | serge | 243 | if (fixed_mode) |
244 | intel_fixed_panel_mode(fixed_mode, adjusted_mode); |
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4104 | Serge | 245 | |
2330 | Serge | 246 | return true; |
247 | } |
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248 | |||
5060 | serge | 249 | static void intel_dvo_pre_enable(struct intel_encoder *encoder) |
2330 | Serge | 250 | { |
4104 | Serge | 251 | struct drm_device *dev = encoder->base.dev; |
2330 | Serge | 252 | struct drm_i915_private *dev_priv = dev->dev_private; |
4104 | Serge | 253 | struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); |
6084 | serge | 254 | const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode; |
4104 | Serge | 255 | struct intel_dvo *intel_dvo = enc_to_dvo(encoder); |
256 | int pipe = crtc->pipe; |
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2330 | Serge | 257 | u32 dvo_val; |
258 | u32 dvo_reg = intel_dvo->dev.dvo_reg, dvo_srcdim_reg; |
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259 | |||
260 | switch (dvo_reg) { |
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261 | case DVOA: |
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262 | default: |
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263 | dvo_srcdim_reg = DVOA_SRCDIM; |
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264 | break; |
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265 | case DVOB: |
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266 | dvo_srcdim_reg = DVOB_SRCDIM; |
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267 | break; |
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268 | case DVOC: |
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269 | dvo_srcdim_reg = DVOC_SRCDIM; |
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270 | break; |
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271 | } |
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272 | |||
273 | /* Save the data order, since I don't know what it should be set to. */ |
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274 | dvo_val = I915_READ(dvo_reg) & |
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275 | (DVO_PRESERVE_MASK | DVO_DATA_ORDER_GBRG); |
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276 | dvo_val |= DVO_DATA_ORDER_FP | DVO_BORDER_ENABLE | |
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277 | DVO_BLANK_ACTIVE_HIGH; |
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278 | |||
279 | if (pipe == 1) |
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280 | dvo_val |= DVO_PIPE_B_SELECT; |
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281 | dvo_val |= DVO_PIPE_STALL; |
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282 | if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) |
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283 | dvo_val |= DVO_HSYNC_ACTIVE_HIGH; |
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284 | if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) |
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285 | dvo_val |= DVO_VSYNC_ACTIVE_HIGH; |
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286 | |||
287 | /*I915_WRITE(DVOB_SRCDIM, |
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6084 | serge | 288 | (adjusted_mode->crtc_hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | |
289 | (adjusted_mode->crtc_vdisplay << DVO_SRCDIM_VERTICAL_SHIFT));*/ |
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2330 | Serge | 290 | I915_WRITE(dvo_srcdim_reg, |
6084 | serge | 291 | (adjusted_mode->crtc_hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | |
292 | (adjusted_mode->crtc_vdisplay << DVO_SRCDIM_VERTICAL_SHIFT)); |
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2330 | Serge | 293 | /*I915_WRITE(DVOB, dvo_val);*/ |
294 | I915_WRITE(dvo_reg, dvo_val); |
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295 | } |
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296 | |||
297 | /** |
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298 | * Detect the output connection on our DVO device. |
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299 | * |
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300 | * Unimplemented. |
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301 | */ |
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302 | static enum drm_connector_status |
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303 | intel_dvo_detect(struct drm_connector *connector, bool force) |
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304 | { |
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305 | struct intel_dvo *intel_dvo = intel_attached_dvo(connector); |
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4104 | Serge | 306 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
5060 | serge | 307 | connector->base.id, connector->name); |
2330 | Serge | 308 | return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev); |
309 | } |
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310 | |||
311 | static int intel_dvo_get_modes(struct drm_connector *connector) |
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312 | { |
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313 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
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6084 | serge | 314 | const struct drm_display_mode *fixed_mode = |
315 | to_intel_connector(connector)->panel.fixed_mode; |
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2330 | Serge | 316 | |
317 | /* We should probably have an i2c driver get_modes function for those |
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318 | * devices which will have a fixed set of modes determined by the chip |
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319 | * (TV-out, for example), but for now with just TMDS and LVDS, |
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320 | * that's not the case. |
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321 | */ |
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322 | intel_ddc_get_modes(connector, |
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6084 | serge | 323 | intel_gmbus_get_adapter(dev_priv, GMBUS_PIN_DPC)); |
2330 | Serge | 324 | if (!list_empty(&connector->probed_modes)) |
325 | return 1; |
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326 | |||
6084 | serge | 327 | if (fixed_mode) { |
2330 | Serge | 328 | struct drm_display_mode *mode; |
6084 | serge | 329 | mode = drm_mode_duplicate(connector->dev, fixed_mode); |
2330 | Serge | 330 | if (mode) { |
331 | drm_mode_probed_add(connector, mode); |
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332 | return 1; |
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333 | } |
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334 | } |
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335 | |||
336 | return 0; |
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337 | } |
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338 | |||
339 | static void intel_dvo_destroy(struct drm_connector *connector) |
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340 | { |
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341 | drm_connector_cleanup(connector); |
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6084 | serge | 342 | intel_panel_fini(&to_intel_connector(connector)->panel); |
2330 | Serge | 343 | kfree(connector); |
344 | } |
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345 | |||
346 | static const struct drm_connector_funcs intel_dvo_connector_funcs = { |
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6084 | serge | 347 | .dpms = drm_atomic_helper_connector_dpms, |
2330 | Serge | 348 | .detect = intel_dvo_detect, |
349 | .destroy = intel_dvo_destroy, |
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350 | .fill_modes = drm_helper_probe_single_connector_modes, |
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6084 | serge | 351 | .atomic_get_property = intel_connector_atomic_get_property, |
352 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, |
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353 | .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, |
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2330 | Serge | 354 | }; |
355 | |||
356 | static const struct drm_connector_helper_funcs intel_dvo_connector_helper_funcs = { |
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357 | .mode_valid = intel_dvo_mode_valid, |
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358 | .get_modes = intel_dvo_get_modes, |
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359 | .best_encoder = intel_best_encoder, |
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360 | }; |
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361 | |||
362 | static void intel_dvo_enc_destroy(struct drm_encoder *encoder) |
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363 | { |
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4104 | Serge | 364 | struct intel_dvo *intel_dvo = enc_to_dvo(to_intel_encoder(encoder)); |
2330 | Serge | 365 | |
366 | if (intel_dvo->dev.dev_ops->destroy) |
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367 | intel_dvo->dev.dev_ops->destroy(&intel_dvo->dev); |
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368 | |||
369 | intel_encoder_destroy(encoder); |
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370 | } |
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371 | |||
372 | static const struct drm_encoder_funcs intel_dvo_enc_funcs = { |
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373 | .destroy = intel_dvo_enc_destroy, |
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374 | }; |
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375 | |||
376 | /** |
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377 | * Attempts to get a fixed panel timing for LVDS (currently only the i830). |
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378 | * |
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379 | * Other chips with DVO LVDS will need to extend this to deal with the LVDS |
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380 | * chip being on DVOB/C and having multiple pipes. |
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381 | */ |
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382 | static struct drm_display_mode * |
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383 | intel_dvo_get_current_mode(struct drm_connector *connector) |
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384 | { |
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385 | struct drm_device *dev = connector->dev; |
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386 | struct drm_i915_private *dev_priv = dev->dev_private; |
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387 | struct intel_dvo *intel_dvo = intel_attached_dvo(connector); |
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388 | uint32_t dvo_val = I915_READ(intel_dvo->dev.dvo_reg); |
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389 | struct drm_display_mode *mode = NULL; |
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390 | |||
391 | /* If the DVO port is active, that'll be the LVDS, so we can pull out |
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392 | * its timings to get how the BIOS set up the panel. |
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393 | */ |
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394 | if (dvo_val & DVO_ENABLE) { |
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395 | struct drm_crtc *crtc; |
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396 | int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0; |
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397 | |||
398 | crtc = intel_get_crtc_for_pipe(dev, pipe); |
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399 | if (crtc) { |
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400 | mode = intel_crtc_mode_get(dev, crtc); |
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401 | if (mode) { |
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402 | mode->type |= DRM_MODE_TYPE_PREFERRED; |
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403 | if (dvo_val & DVO_HSYNC_ACTIVE_HIGH) |
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404 | mode->flags |= DRM_MODE_FLAG_PHSYNC; |
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405 | if (dvo_val & DVO_VSYNC_ACTIVE_HIGH) |
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406 | mode->flags |= DRM_MODE_FLAG_PVSYNC; |
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407 | } |
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408 | } |
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409 | } |
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410 | |||
411 | return mode; |
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412 | } |
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413 | |||
414 | void intel_dvo_init(struct drm_device *dev) |
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415 | { |
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416 | struct drm_i915_private *dev_priv = dev->dev_private; |
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417 | struct intel_encoder *intel_encoder; |
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418 | struct intel_dvo *intel_dvo; |
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419 | struct intel_connector *intel_connector; |
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420 | int i; |
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421 | int encoder_type = DRM_MODE_ENCODER_NONE; |
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422 | |||
4560 | Serge | 423 | intel_dvo = kzalloc(sizeof(*intel_dvo), GFP_KERNEL); |
2330 | Serge | 424 | if (!intel_dvo) |
425 | return; |
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426 | |||
6084 | serge | 427 | intel_connector = intel_connector_alloc(); |
2330 | Serge | 428 | if (!intel_connector) { |
429 | kfree(intel_dvo); |
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430 | return; |
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431 | } |
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432 | |||
6084 | serge | 433 | intel_dvo->attached_connector = intel_connector; |
434 | |||
2330 | Serge | 435 | intel_encoder = &intel_dvo->base; |
436 | drm_encoder_init(dev, &intel_encoder->base, |
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437 | &intel_dvo_enc_funcs, encoder_type); |
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438 | |||
3031 | serge | 439 | intel_encoder->disable = intel_disable_dvo; |
440 | intel_encoder->enable = intel_enable_dvo; |
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441 | intel_encoder->get_hw_state = intel_dvo_get_hw_state; |
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4104 | Serge | 442 | intel_encoder->get_config = intel_dvo_get_config; |
443 | intel_encoder->compute_config = intel_dvo_compute_config; |
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5060 | serge | 444 | intel_encoder->pre_enable = intel_dvo_pre_enable; |
3031 | serge | 445 | intel_connector->get_hw_state = intel_dvo_connector_get_hw_state; |
5060 | serge | 446 | intel_connector->unregister = intel_connector_unregister; |
3031 | serge | 447 | |
2330 | Serge | 448 | /* Now, try to find a controller */ |
449 | for (i = 0; i < ARRAY_SIZE(intel_dvo_devices); i++) { |
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450 | struct drm_connector *connector = &intel_connector->base; |
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451 | const struct intel_dvo_device *dvo = &intel_dvo_devices[i]; |
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452 | struct i2c_adapter *i2c; |
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453 | int gpio; |
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3746 | Serge | 454 | bool dvoinit; |
6084 | serge | 455 | enum pipe pipe; |
456 | uint32_t dpll[I915_MAX_PIPES]; |
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2330 | Serge | 457 | |
458 | /* Allow the I2C driver info to specify the GPIO to be used in |
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459 | * special cases, but otherwise default to what's defined |
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460 | * in the spec. |
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461 | */ |
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6084 | serge | 462 | if (intel_gmbus_is_valid_pin(dev_priv, dvo->gpio)) |
2330 | Serge | 463 | gpio = dvo->gpio; |
464 | else if (dvo->type == INTEL_DVO_CHIP_LVDS) |
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6084 | serge | 465 | gpio = GMBUS_PIN_SSC; |
2330 | Serge | 466 | else |
6084 | serge | 467 | gpio = GMBUS_PIN_DPB; |
2330 | Serge | 468 | |
469 | /* Set up the I2C bus necessary for the chip we're probing. |
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470 | * It appears that everything is on GPIOE except for panels |
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471 | * on i830 laptops, which are on GPIOB (DVOA). |
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472 | */ |
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3031 | serge | 473 | i2c = intel_gmbus_get_adapter(dev_priv, gpio); |
2330 | Serge | 474 | |
475 | intel_dvo->dev = *dvo; |
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3746 | Serge | 476 | |
477 | /* GMBUS NAK handling seems to be unstable, hence let the |
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478 | * transmitter detection run in bit banging mode for now. |
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479 | */ |
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480 | intel_gmbus_force_bit(i2c, true); |
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481 | |||
6084 | serge | 482 | /* ns2501 requires the DVO 2x clock before it will |
483 | * respond to i2c accesses, so make sure we have |
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484 | * have the clock enabled before we attempt to |
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485 | * initialize the device. |
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486 | */ |
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487 | for_each_pipe(dev_priv, pipe) { |
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488 | dpll[pipe] = I915_READ(DPLL(pipe)); |
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489 | I915_WRITE(DPLL(pipe), dpll[pipe] | DPLL_DVO_2X_MODE); |
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490 | } |
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491 | |||
3746 | Serge | 492 | dvoinit = dvo->dev_ops->init(&intel_dvo->dev, i2c); |
493 | |||
6084 | serge | 494 | /* restore the DVO 2x clock state to original */ |
495 | for_each_pipe(dev_priv, pipe) { |
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496 | I915_WRITE(DPLL(pipe), dpll[pipe]); |
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497 | } |
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498 | |||
3746 | Serge | 499 | intel_gmbus_force_bit(i2c, false); |
500 | |||
501 | if (!dvoinit) |
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2330 | Serge | 502 | continue; |
503 | |||
504 | intel_encoder->type = INTEL_OUTPUT_DVO; |
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505 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1); |
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506 | switch (dvo->type) { |
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507 | case INTEL_DVO_CHIP_TMDS: |
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5060 | serge | 508 | intel_encoder->cloneable = (1 << INTEL_OUTPUT_ANALOG) | |
509 | (1 << INTEL_OUTPUT_DVO); |
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2330 | Serge | 510 | drm_connector_init(dev, connector, |
511 | &intel_dvo_connector_funcs, |
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512 | DRM_MODE_CONNECTOR_DVII); |
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513 | encoder_type = DRM_MODE_ENCODER_TMDS; |
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514 | break; |
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515 | case INTEL_DVO_CHIP_LVDS: |
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5060 | serge | 516 | intel_encoder->cloneable = 0; |
2330 | Serge | 517 | drm_connector_init(dev, connector, |
518 | &intel_dvo_connector_funcs, |
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519 | DRM_MODE_CONNECTOR_LVDS); |
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520 | encoder_type = DRM_MODE_ENCODER_LVDS; |
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521 | break; |
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522 | } |
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523 | |||
524 | drm_connector_helper_add(connector, |
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525 | &intel_dvo_connector_helper_funcs); |
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526 | connector->display_info.subpixel_order = SubPixelHorizontalRGB; |
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527 | connector->interlace_allowed = false; |
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528 | connector->doublescan_allowed = false; |
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529 | |||
530 | intel_connector_attach_encoder(intel_connector, intel_encoder); |
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531 | if (dvo->type == INTEL_DVO_CHIP_LVDS) { |
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532 | /* For our LVDS chipsets, we should hopefully be able |
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533 | * to dig the fixed panel mode out of the BIOS data. |
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534 | * However, it's in a different format from the BIOS |
||
535 | * data on chipsets with integrated LVDS (stored in AIM |
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536 | * headers, likely), so for now, just get the current |
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537 | * mode being output through DVO. |
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538 | */ |
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6084 | serge | 539 | intel_panel_init(&intel_connector->panel, |
540 | intel_dvo_get_current_mode(connector), |
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541 | NULL); |
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2330 | Serge | 542 | intel_dvo->panel_wants_dither = true; |
543 | } |
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544 | |||
5060 | serge | 545 | drm_connector_register(connector); |
2330 | Serge | 546 | return; |
547 | } |
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548 | |||
549 | drm_encoder_cleanup(&intel_encoder->base); |
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550 | kfree(intel_dvo); |
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551 | kfree(intel_connector); |
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552 | }><>><>><>><>>><>><>><>><> |