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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
8ca4013d | 27 | #include <linux/dmi.h> |
79e53945 | 28 | #include <linux/i2c.h> |
5a0e3ad6 | 29 | #include <linux/slab.h> |
79e53945 JB |
30 | #include "drmP.h" |
31 | #include "drm.h" | |
32 | #include "drm_crtc.h" | |
33 | #include "drm_crtc_helper.h" | |
f5afcd3d | 34 | #include "drm_edid.h" |
79e53945 JB |
35 | #include "intel_drv.h" |
36 | #include "i915_drm.h" | |
37 | #include "i915_drv.h" | |
38 | ||
e7dbb2f2 KP |
39 | /* Here's the desired hotplug mode */ |
40 | #define ADPA_HOTPLUG_BITS (ADPA_CRT_HOTPLUG_PERIOD_128 | \ | |
41 | ADPA_CRT_HOTPLUG_WARMUP_10MS | \ | |
42 | ADPA_CRT_HOTPLUG_SAMPLE_4S | \ | |
43 | ADPA_CRT_HOTPLUG_VOLTAGE_50 | \ | |
44 | ADPA_CRT_HOTPLUG_VOLREF_325MV | \ | |
45 | ADPA_CRT_HOTPLUG_ENABLE) | |
46 | ||
c9a1c4cd CW |
47 | struct intel_crt { |
48 | struct intel_encoder base; | |
e7dbb2f2 | 49 | bool force_hotplug_required; |
c9a1c4cd CW |
50 | }; |
51 | ||
52 | static struct intel_crt *intel_attached_crt(struct drm_connector *connector) | |
53 | { | |
54 | return container_of(intel_attached_encoder(connector), | |
55 | struct intel_crt, base); | |
56 | } | |
57 | ||
79e53945 JB |
58 | static void intel_crt_dpms(struct drm_encoder *encoder, int mode) |
59 | { | |
60 | struct drm_device *dev = encoder->dev; | |
61 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 62 | u32 temp, reg; |
79e53945 | 63 | |
bad720ff | 64 | if (HAS_PCH_SPLIT(dev)) |
2c07245f ZW |
65 | reg = PCH_ADPA; |
66 | else | |
67 | reg = ADPA; | |
68 | ||
69 | temp = I915_READ(reg); | |
79e53945 | 70 | temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE); |
febc7694 | 71 | temp &= ~ADPA_DAC_ENABLE; |
79e53945 | 72 | |
0206e353 | 73 | switch (mode) { |
79e53945 JB |
74 | case DRM_MODE_DPMS_ON: |
75 | temp |= ADPA_DAC_ENABLE; | |
76 | break; | |
77 | case DRM_MODE_DPMS_STANDBY: | |
78 | temp |= ADPA_DAC_ENABLE | ADPA_HSYNC_CNTL_DISABLE; | |
79 | break; | |
80 | case DRM_MODE_DPMS_SUSPEND: | |
81 | temp |= ADPA_DAC_ENABLE | ADPA_VSYNC_CNTL_DISABLE; | |
82 | break; | |
83 | case DRM_MODE_DPMS_OFF: | |
84 | temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE; | |
85 | break; | |
86 | } | |
87 | ||
2c07245f | 88 | I915_WRITE(reg, temp); |
79e53945 JB |
89 | } |
90 | ||
91 | static int intel_crt_mode_valid(struct drm_connector *connector, | |
92 | struct drm_display_mode *mode) | |
93 | { | |
6bcdcd9e ZY |
94 | struct drm_device *dev = connector->dev; |
95 | ||
96 | int max_clock = 0; | |
79e53945 JB |
97 | if (mode->flags & DRM_MODE_FLAG_DBLSCAN) |
98 | return MODE_NO_DBLESCAN; | |
99 | ||
6bcdcd9e ZY |
100 | if (mode->clock < 25000) |
101 | return MODE_CLOCK_LOW; | |
102 | ||
a6c45cf0 | 103 | if (IS_GEN2(dev)) |
6bcdcd9e ZY |
104 | max_clock = 350000; |
105 | else | |
106 | max_clock = 400000; | |
107 | if (mode->clock > max_clock) | |
108 | return MODE_CLOCK_HIGH; | |
79e53945 JB |
109 | |
110 | return MODE_OK; | |
111 | } | |
112 | ||
113 | static bool intel_crt_mode_fixup(struct drm_encoder *encoder, | |
114 | struct drm_display_mode *mode, | |
115 | struct drm_display_mode *adjusted_mode) | |
116 | { | |
117 | return true; | |
118 | } | |
119 | ||
120 | static void intel_crt_mode_set(struct drm_encoder *encoder, | |
121 | struct drm_display_mode *mode, | |
122 | struct drm_display_mode *adjusted_mode) | |
123 | { | |
124 | ||
125 | struct drm_device *dev = encoder->dev; | |
126 | struct drm_crtc *crtc = encoder->crtc; | |
127 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
128 | struct drm_i915_private *dev_priv = dev->dev_private; | |
129 | int dpll_md_reg; | |
130 | u32 adpa, dpll_md; | |
2c07245f | 131 | u32 adpa_reg; |
79e53945 | 132 | |
9db4a9c7 | 133 | dpll_md_reg = DPLL_MD(intel_crtc->pipe); |
79e53945 | 134 | |
bad720ff | 135 | if (HAS_PCH_SPLIT(dev)) |
2c07245f ZW |
136 | adpa_reg = PCH_ADPA; |
137 | else | |
138 | adpa_reg = ADPA; | |
139 | ||
79e53945 JB |
140 | /* |
141 | * Disable separate mode multiplier used when cloning SDVO to CRT | |
142 | * XXX this needs to be adjusted when we really are cloning | |
143 | */ | |
a6c45cf0 | 144 | if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) { |
79e53945 JB |
145 | dpll_md = I915_READ(dpll_md_reg); |
146 | I915_WRITE(dpll_md_reg, | |
147 | dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK); | |
148 | } | |
149 | ||
e7dbb2f2 | 150 | adpa = ADPA_HOTPLUG_BITS; |
79e53945 JB |
151 | if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) |
152 | adpa |= ADPA_HSYNC_ACTIVE_HIGH; | |
153 | if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) | |
154 | adpa |= ADPA_VSYNC_ACTIVE_HIGH; | |
155 | ||
75770564 JB |
156 | /* For CPT allow 3 pipe config, for others just use A or B */ |
157 | if (HAS_PCH_CPT(dev)) | |
158 | adpa |= PORT_TRANS_SEL_CPT(intel_crtc->pipe); | |
159 | else if (intel_crtc->pipe == 0) | |
160 | adpa |= ADPA_PIPE_A_SELECT; | |
161 | else | |
162 | adpa |= ADPA_PIPE_B_SELECT; | |
79e53945 | 163 | |
9db4a9c7 JB |
164 | if (!HAS_PCH_SPLIT(dev)) |
165 | I915_WRITE(BCLRPAT(intel_crtc->pipe), 0); | |
166 | ||
2c07245f ZW |
167 | I915_WRITE(adpa_reg, adpa); |
168 | } | |
169 | ||
f2b115e6 | 170 | static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) |
2c07245f ZW |
171 | { |
172 | struct drm_device *dev = connector->dev; | |
e7dbb2f2 | 173 | struct intel_crt *crt = intel_attached_crt(connector); |
2c07245f | 174 | struct drm_i915_private *dev_priv = dev->dev_private; |
e7dbb2f2 | 175 | u32 adpa; |
2c07245f ZW |
176 | bool ret; |
177 | ||
e7dbb2f2 KP |
178 | /* The first time through, trigger an explicit detection cycle */ |
179 | if (crt->force_hotplug_required) { | |
180 | bool turn_off_dac = HAS_PCH_SPLIT(dev); | |
181 | u32 save_adpa; | |
67941da2 | 182 | |
e7dbb2f2 KP |
183 | crt->force_hotplug_required = 0; |
184 | ||
185 | save_adpa = adpa = I915_READ(PCH_ADPA); | |
186 | DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa); | |
187 | ||
188 | adpa |= ADPA_CRT_HOTPLUG_FORCE_TRIGGER; | |
189 | if (turn_off_dac) | |
190 | adpa &= ~ADPA_DAC_ENABLE; | |
191 | ||
192 | I915_WRITE(PCH_ADPA, adpa); | |
193 | ||
194 | if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0, | |
195 | 1000)) | |
196 | DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER"); | |
197 | ||
198 | if (turn_off_dac) { | |
199 | I915_WRITE(PCH_ADPA, save_adpa); | |
200 | POSTING_READ(PCH_ADPA); | |
201 | } | |
a4a6b901 ZW |
202 | } |
203 | ||
2c07245f ZW |
204 | /* Check the status to see if both blue and green are on now */ |
205 | adpa = I915_READ(PCH_ADPA); | |
e7dbb2f2 | 206 | if ((adpa & ADPA_CRT_HOTPLUG_MONITOR_MASK) != 0) |
2c07245f ZW |
207 | ret = true; |
208 | else | |
209 | ret = false; | |
e7dbb2f2 | 210 | DRM_DEBUG_KMS("ironlake hotplug adpa=0x%x, result %d\n", adpa, ret); |
2c07245f | 211 | |
2c07245f | 212 | return ret; |
79e53945 JB |
213 | } |
214 | ||
215 | /** | |
216 | * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence. | |
217 | * | |
218 | * Not for i915G/i915GM | |
219 | * | |
220 | * \return true if CRT is connected. | |
221 | * \return false if CRT is disconnected. | |
222 | */ | |
223 | static bool intel_crt_detect_hotplug(struct drm_connector *connector) | |
224 | { | |
225 | struct drm_device *dev = connector->dev; | |
226 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7a772c49 AJ |
227 | u32 hotplug_en, orig, stat; |
228 | bool ret = false; | |
771cb081 | 229 | int i, tries = 0; |
2c07245f | 230 | |
bad720ff | 231 | if (HAS_PCH_SPLIT(dev)) |
f2b115e6 | 232 | return intel_ironlake_crt_detect_hotplug(connector); |
2c07245f | 233 | |
771cb081 ZY |
234 | /* |
235 | * On 4 series desktop, CRT detect sequence need to be done twice | |
236 | * to get a reliable result. | |
237 | */ | |
79e53945 | 238 | |
771cb081 ZY |
239 | if (IS_G4X(dev) && !IS_GM45(dev)) |
240 | tries = 2; | |
241 | else | |
242 | tries = 1; | |
7a772c49 | 243 | hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN); |
771cb081 ZY |
244 | hotplug_en |= CRT_HOTPLUG_FORCE_DETECT; |
245 | ||
771cb081 | 246 | for (i = 0; i < tries ; i++) { |
771cb081 ZY |
247 | /* turn on the FORCE_DETECT */ |
248 | I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); | |
771cb081 | 249 | /* wait for FORCE_DETECT to go off */ |
913d8d11 CW |
250 | if (wait_for((I915_READ(PORT_HOTPLUG_EN) & |
251 | CRT_HOTPLUG_FORCE_DETECT) == 0, | |
481b6af3 | 252 | 1000)) |
79077319 | 253 | DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off"); |
771cb081 | 254 | } |
79e53945 | 255 | |
7a772c49 AJ |
256 | stat = I915_READ(PORT_HOTPLUG_STAT); |
257 | if ((stat & CRT_HOTPLUG_MONITOR_MASK) != CRT_HOTPLUG_MONITOR_NONE) | |
258 | ret = true; | |
259 | ||
260 | /* clear the interrupt we just generated, if any */ | |
261 | I915_WRITE(PORT_HOTPLUG_STAT, CRT_HOTPLUG_INT_STATUS); | |
79e53945 | 262 | |
7a772c49 AJ |
263 | /* and put the bits back */ |
264 | I915_WRITE(PORT_HOTPLUG_EN, orig); | |
265 | ||
266 | return ret; | |
79e53945 JB |
267 | } |
268 | ||
f5afcd3d | 269 | static bool intel_crt_detect_ddc(struct drm_connector *connector) |
79e53945 | 270 | { |
f5afcd3d | 271 | struct intel_crt *crt = intel_attached_crt(connector); |
c9a1c4cd | 272 | struct drm_i915_private *dev_priv = crt->base.base.dev->dev_private; |
79e53945 JB |
273 | |
274 | /* CRT should always be at 0, but check anyway */ | |
c9a1c4cd | 275 | if (crt->base.type != INTEL_OUTPUT_ANALOG) |
79e53945 JB |
276 | return false; |
277 | ||
c9a1c4cd | 278 | if (intel_ddc_probe(&crt->base, dev_priv->crt_ddc_pin)) { |
f5afcd3d DM |
279 | struct edid *edid; |
280 | bool is_digital = false; | |
281 | ||
282 | edid = drm_get_edid(connector, | |
283 | &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter); | |
284 | /* | |
285 | * This may be a DVI-I connector with a shared DDC | |
286 | * link between analog and digital outputs, so we | |
287 | * have to check the EDID input spec of the attached device. | |
d3bcb757 CW |
288 | * |
289 | * On the other hand, what should we do if it is a broken EDID? | |
f5afcd3d DM |
290 | */ |
291 | if (edid != NULL) { | |
292 | is_digital = edid->input & DRM_EDID_INPUT_DIGITAL; | |
293 | connector->display_info.raw_edid = NULL; | |
294 | kfree(edid); | |
295 | } | |
296 | ||
297 | if (!is_digital) { | |
298 | DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n"); | |
299 | return true; | |
d3bcb757 CW |
300 | } else { |
301 | DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n"); | |
f5afcd3d | 302 | } |
6ec3d0c0 CW |
303 | } |
304 | ||
305 | return false; | |
79e53945 JB |
306 | } |
307 | ||
e4a5d54f | 308 | static enum drm_connector_status |
7173188d | 309 | intel_crt_load_detect(struct intel_crt *crt) |
e4a5d54f | 310 | { |
7173188d | 311 | struct drm_device *dev = crt->base.base.dev; |
e4a5d54f | 312 | struct drm_i915_private *dev_priv = dev->dev_private; |
7173188d | 313 | uint32_t pipe = to_intel_crtc(crt->base.base.crtc)->pipe; |
e4a5d54f ML |
314 | uint32_t save_bclrpat; |
315 | uint32_t save_vtotal; | |
316 | uint32_t vtotal, vactive; | |
317 | uint32_t vsample; | |
318 | uint32_t vblank, vblank_start, vblank_end; | |
319 | uint32_t dsl; | |
320 | uint32_t bclrpat_reg; | |
321 | uint32_t vtotal_reg; | |
322 | uint32_t vblank_reg; | |
323 | uint32_t vsync_reg; | |
324 | uint32_t pipeconf_reg; | |
325 | uint32_t pipe_dsl_reg; | |
326 | uint8_t st00; | |
327 | enum drm_connector_status status; | |
328 | ||
6ec3d0c0 CW |
329 | DRM_DEBUG_KMS("starting load-detect on CRT\n"); |
330 | ||
9db4a9c7 JB |
331 | bclrpat_reg = BCLRPAT(pipe); |
332 | vtotal_reg = VTOTAL(pipe); | |
333 | vblank_reg = VBLANK(pipe); | |
334 | vsync_reg = VSYNC(pipe); | |
335 | pipeconf_reg = PIPECONF(pipe); | |
336 | pipe_dsl_reg = PIPEDSL(pipe); | |
e4a5d54f ML |
337 | |
338 | save_bclrpat = I915_READ(bclrpat_reg); | |
339 | save_vtotal = I915_READ(vtotal_reg); | |
340 | vblank = I915_READ(vblank_reg); | |
341 | ||
342 | vtotal = ((save_vtotal >> 16) & 0xfff) + 1; | |
343 | vactive = (save_vtotal & 0x7ff) + 1; | |
344 | ||
345 | vblank_start = (vblank & 0xfff) + 1; | |
346 | vblank_end = ((vblank >> 16) & 0xfff) + 1; | |
347 | ||
348 | /* Set the border color to purple. */ | |
349 | I915_WRITE(bclrpat_reg, 0x500050); | |
350 | ||
a6c45cf0 | 351 | if (!IS_GEN2(dev)) { |
e4a5d54f ML |
352 | uint32_t pipeconf = I915_READ(pipeconf_reg); |
353 | I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER); | |
19c55da1 | 354 | POSTING_READ(pipeconf_reg); |
e4a5d54f ML |
355 | /* Wait for next Vblank to substitue |
356 | * border color for Color info */ | |
9d0498a2 | 357 | intel_wait_for_vblank(dev, pipe); |
e4a5d54f ML |
358 | st00 = I915_READ8(VGA_MSR_WRITE); |
359 | status = ((st00 & (1 << 4)) != 0) ? | |
360 | connector_status_connected : | |
361 | connector_status_disconnected; | |
362 | ||
363 | I915_WRITE(pipeconf_reg, pipeconf); | |
364 | } else { | |
365 | bool restore_vblank = false; | |
366 | int count, detect; | |
367 | ||
368 | /* | |
369 | * If there isn't any border, add some. | |
370 | * Yes, this will flicker | |
371 | */ | |
372 | if (vblank_start <= vactive && vblank_end >= vtotal) { | |
373 | uint32_t vsync = I915_READ(vsync_reg); | |
374 | uint32_t vsync_start = (vsync & 0xffff) + 1; | |
375 | ||
376 | vblank_start = vsync_start; | |
377 | I915_WRITE(vblank_reg, | |
378 | (vblank_start - 1) | | |
379 | ((vblank_end - 1) << 16)); | |
380 | restore_vblank = true; | |
381 | } | |
382 | /* sample in the vertical border, selecting the larger one */ | |
383 | if (vblank_start - vactive >= vtotal - vblank_end) | |
384 | vsample = (vblank_start + vactive) >> 1; | |
385 | else | |
386 | vsample = (vtotal + vblank_end) >> 1; | |
387 | ||
388 | /* | |
389 | * Wait for the border to be displayed | |
390 | */ | |
391 | while (I915_READ(pipe_dsl_reg) >= vactive) | |
392 | ; | |
393 | while ((dsl = I915_READ(pipe_dsl_reg)) <= vsample) | |
394 | ; | |
395 | /* | |
396 | * Watch ST00 for an entire scanline | |
397 | */ | |
398 | detect = 0; | |
399 | count = 0; | |
400 | do { | |
401 | count++; | |
402 | /* Read the ST00 VGA status register */ | |
403 | st00 = I915_READ8(VGA_MSR_WRITE); | |
404 | if (st00 & (1 << 4)) | |
405 | detect++; | |
406 | } while ((I915_READ(pipe_dsl_reg) == dsl)); | |
407 | ||
408 | /* restore vblank if necessary */ | |
409 | if (restore_vblank) | |
410 | I915_WRITE(vblank_reg, vblank); | |
411 | /* | |
412 | * If more than 3/4 of the scanline detected a monitor, | |
413 | * then it is assumed to be present. This works even on i830, | |
414 | * where there isn't any way to force the border color across | |
415 | * the screen | |
416 | */ | |
417 | status = detect * 4 > count * 3 ? | |
418 | connector_status_connected : | |
419 | connector_status_disconnected; | |
420 | } | |
421 | ||
422 | /* Restore previous settings */ | |
423 | I915_WRITE(bclrpat_reg, save_bclrpat); | |
424 | ||
425 | return status; | |
426 | } | |
427 | ||
7b334fcb | 428 | static enum drm_connector_status |
930a9e28 | 429 | intel_crt_detect(struct drm_connector *connector, bool force) |
79e53945 JB |
430 | { |
431 | struct drm_device *dev = connector->dev; | |
c9a1c4cd | 432 | struct intel_crt *crt = intel_attached_crt(connector); |
e4a5d54f | 433 | struct drm_crtc *crtc; |
e4a5d54f | 434 | enum drm_connector_status status; |
79e53945 | 435 | |
a6c45cf0 | 436 | if (I915_HAS_HOTPLUG(dev)) { |
6ec3d0c0 CW |
437 | if (intel_crt_detect_hotplug(connector)) { |
438 | DRM_DEBUG_KMS("CRT detected via hotplug\n"); | |
79e53945 | 439 | return connector_status_connected; |
e7dbb2f2 KP |
440 | } else { |
441 | DRM_DEBUG_KMS("CRT not detected via hotplug\n"); | |
79e53945 | 442 | return connector_status_disconnected; |
e7dbb2f2 | 443 | } |
79e53945 JB |
444 | } |
445 | ||
f5afcd3d | 446 | if (intel_crt_detect_ddc(connector)) |
79e53945 JB |
447 | return connector_status_connected; |
448 | ||
930a9e28 | 449 | if (!force) |
7b334fcb CW |
450 | return connector->status; |
451 | ||
e4a5d54f | 452 | /* for pre-945g platforms use load detect */ |
c9a1c4cd CW |
453 | crtc = crt->base.base.crtc; |
454 | if (crtc && crtc->enabled) { | |
7173188d | 455 | status = intel_crt_load_detect(crt); |
e4a5d54f | 456 | } else { |
8261b191 CW |
457 | struct intel_load_detect_pipe tmp; |
458 | ||
459 | if (intel_get_load_detect_pipe(&crt->base, connector, NULL, | |
460 | &tmp)) { | |
f5afcd3d | 461 | if (intel_crt_detect_ddc(connector)) |
6ec3d0c0 CW |
462 | status = connector_status_connected; |
463 | else | |
7173188d | 464 | status = intel_crt_load_detect(crt); |
8261b191 CW |
465 | intel_release_load_detect_pipe(&crt->base, connector, |
466 | &tmp); | |
e4a5d54f ML |
467 | } else |
468 | status = connector_status_unknown; | |
469 | } | |
470 | ||
471 | return status; | |
79e53945 JB |
472 | } |
473 | ||
474 | static void intel_crt_destroy(struct drm_connector *connector) | |
475 | { | |
79e53945 JB |
476 | drm_sysfs_connector_remove(connector); |
477 | drm_connector_cleanup(connector); | |
478 | kfree(connector); | |
479 | } | |
480 | ||
481 | static int intel_crt_get_modes(struct drm_connector *connector) | |
482 | { | |
8e4d36b9 | 483 | struct drm_device *dev = connector->dev; |
f899fc64 | 484 | struct drm_i915_private *dev_priv = dev->dev_private; |
890f3359 | 485 | int ret; |
8e4d36b9 | 486 | |
f899fc64 CW |
487 | ret = intel_ddc_get_modes(connector, |
488 | &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter); | |
8e4d36b9 | 489 | if (ret || !IS_G4X(dev)) |
f899fc64 | 490 | return ret; |
8e4d36b9 | 491 | |
8e4d36b9 | 492 | /* Try to probe digital port for output in DVI-I -> VGA mode. */ |
f899fc64 CW |
493 | return intel_ddc_get_modes(connector, |
494 | &dev_priv->gmbus[GMBUS_PORT_DPB].adapter); | |
79e53945 JB |
495 | } |
496 | ||
497 | static int intel_crt_set_property(struct drm_connector *connector, | |
498 | struct drm_property *property, | |
499 | uint64_t value) | |
500 | { | |
79e53945 JB |
501 | return 0; |
502 | } | |
503 | ||
f3269058 CW |
504 | static void intel_crt_reset(struct drm_connector *connector) |
505 | { | |
506 | struct drm_device *dev = connector->dev; | |
507 | struct intel_crt *crt = intel_attached_crt(connector); | |
508 | ||
509 | if (HAS_PCH_SPLIT(dev)) | |
510 | crt->force_hotplug_required = 1; | |
511 | } | |
512 | ||
79e53945 JB |
513 | /* |
514 | * Routines for controlling stuff on the analog port | |
515 | */ | |
516 | ||
517 | static const struct drm_encoder_helper_funcs intel_crt_helper_funcs = { | |
518 | .dpms = intel_crt_dpms, | |
519 | .mode_fixup = intel_crt_mode_fixup, | |
520 | .prepare = intel_encoder_prepare, | |
521 | .commit = intel_encoder_commit, | |
522 | .mode_set = intel_crt_mode_set, | |
523 | }; | |
524 | ||
525 | static const struct drm_connector_funcs intel_crt_connector_funcs = { | |
f3269058 | 526 | .reset = intel_crt_reset, |
c9fb15f6 | 527 | .dpms = drm_helper_connector_dpms, |
79e53945 JB |
528 | .detect = intel_crt_detect, |
529 | .fill_modes = drm_helper_probe_single_connector_modes, | |
530 | .destroy = intel_crt_destroy, | |
531 | .set_property = intel_crt_set_property, | |
532 | }; | |
533 | ||
534 | static const struct drm_connector_helper_funcs intel_crt_connector_helper_funcs = { | |
535 | .mode_valid = intel_crt_mode_valid, | |
536 | .get_modes = intel_crt_get_modes, | |
df0e9248 | 537 | .best_encoder = intel_best_encoder, |
79e53945 JB |
538 | }; |
539 | ||
79e53945 | 540 | static const struct drm_encoder_funcs intel_crt_enc_funcs = { |
ea5b213a | 541 | .destroy = intel_encoder_destroy, |
79e53945 JB |
542 | }; |
543 | ||
8ca4013d DL |
544 | static int __init intel_no_crt_dmi_callback(const struct dmi_system_id *id) |
545 | { | |
546 | DRM_DEBUG_KMS("Skipping CRT initialization for %s\n", id->ident); | |
547 | return 1; | |
548 | } | |
549 | ||
550 | static const struct dmi_system_id intel_no_crt[] = { | |
551 | { | |
552 | .callback = intel_no_crt_dmi_callback, | |
553 | .ident = "ACER ZGB", | |
554 | .matches = { | |
555 | DMI_MATCH(DMI_SYS_VENDOR, "ACER"), | |
556 | DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"), | |
557 | }, | |
558 | }, | |
559 | { } | |
560 | }; | |
561 | ||
79e53945 JB |
562 | void intel_crt_init(struct drm_device *dev) |
563 | { | |
564 | struct drm_connector *connector; | |
c9a1c4cd | 565 | struct intel_crt *crt; |
454c1ca8 | 566 | struct intel_connector *intel_connector; |
db545019 | 567 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 568 | |
8ca4013d DL |
569 | /* Skip machines without VGA that falsely report hotplug events */ |
570 | if (dmi_check_system(intel_no_crt)) | |
571 | return; | |
572 | ||
c9a1c4cd CW |
573 | crt = kzalloc(sizeof(struct intel_crt), GFP_KERNEL); |
574 | if (!crt) | |
79e53945 JB |
575 | return; |
576 | ||
454c1ca8 ZW |
577 | intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL); |
578 | if (!intel_connector) { | |
c9a1c4cd | 579 | kfree(crt); |
454c1ca8 ZW |
580 | return; |
581 | } | |
582 | ||
583 | connector = &intel_connector->base; | |
584 | drm_connector_init(dev, &intel_connector->base, | |
79e53945 JB |
585 | &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA); |
586 | ||
c9a1c4cd | 587 | drm_encoder_init(dev, &crt->base.base, &intel_crt_enc_funcs, |
79e53945 JB |
588 | DRM_MODE_ENCODER_DAC); |
589 | ||
c9a1c4cd | 590 | intel_connector_attach_encoder(intel_connector, &crt->base); |
79e53945 | 591 | |
c9a1c4cd CW |
592 | crt->base.type = INTEL_OUTPUT_ANALOG; |
593 | crt->base.clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT | | |
594 | 1 << INTEL_ANALOG_CLONE_BIT | | |
595 | 1 << INTEL_SDVO_LVDS_CLONE_BIT); | |
596 | crt->base.crtc_mask = (1 << 0) | (1 << 1); | |
dbb02575 DV |
597 | if (IS_GEN2(dev)) |
598 | connector->interlace_allowed = 0; | |
599 | else | |
600 | connector->interlace_allowed = 1; | |
79e53945 JB |
601 | connector->doublescan_allowed = 0; |
602 | ||
c9a1c4cd | 603 | drm_encoder_helper_add(&crt->base.base, &intel_crt_helper_funcs); |
79e53945 JB |
604 | drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs); |
605 | ||
606 | drm_sysfs_connector_add(connector); | |
b01f2c3a | 607 | |
eb1f8e4f DA |
608 | if (I915_HAS_HOTPLUG(dev)) |
609 | connector->polled = DRM_CONNECTOR_POLL_HPD; | |
610 | else | |
611 | connector->polled = DRM_CONNECTOR_POLL_CONNECT; | |
612 | ||
e7dbb2f2 KP |
613 | /* |
614 | * Configure the automatic hotplug detection stuff | |
615 | */ | |
616 | crt->force_hotplug_required = 0; | |
617 | if (HAS_PCH_SPLIT(dev)) { | |
618 | u32 adpa; | |
619 | ||
620 | adpa = I915_READ(PCH_ADPA); | |
621 | adpa &= ~ADPA_CRT_HOTPLUG_MASK; | |
622 | adpa |= ADPA_HOTPLUG_BITS; | |
623 | I915_WRITE(PCH_ADPA, adpa); | |
624 | POSTING_READ(PCH_ADPA); | |
625 | ||
626 | DRM_DEBUG_KMS("pch crt adpa set to 0x%x\n", adpa); | |
627 | crt->force_hotplug_required = 1; | |
628 | } | |
629 | ||
b01f2c3a | 630 | dev_priv->hotplug_supported_mask |= CRT_HOTPLUG_INT_STATUS; |
79e53945 | 631 | } |