blob: 8b782ee63085d2512389074ede394ac2590a63e5 [file] [log] [blame]
Jesse Barnes79e53942008-11-07 14:24:08 -08001/*
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
27#include <linux/i2c.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090028#include <linux/slab.h>
Jesse Barnes79e53942008-11-07 14:24:08 -080029#include "drmP.h"
30#include "drm.h"
31#include "drm_crtc.h"
32#include "drm_crtc_helper.h"
33#include "intel_drv.h"
34#include "i915_drm.h"
35#include "i915_drv.h"
36
37static void intel_crt_dpms(struct drm_encoder *encoder, int mode)
38{
39 struct drm_device *dev = encoder->dev;
40 struct drm_i915_private *dev_priv = dev->dev_private;
Zhenyu Wang2c072452009-06-05 15:38:42 +080041 u32 temp, reg;
Jesse Barnes79e53942008-11-07 14:24:08 -080042
Eric Anholtbad720f2009-10-22 16:11:14 -070043 if (HAS_PCH_SPLIT(dev))
Zhenyu Wang2c072452009-06-05 15:38:42 +080044 reg = PCH_ADPA;
45 else
46 reg = ADPA;
47
48 temp = I915_READ(reg);
Jesse Barnes79e53942008-11-07 14:24:08 -080049 temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
ling.ma@intel.comfebc7692009-06-25 11:55:57 +080050 temp &= ~ADPA_DAC_ENABLE;
Jesse Barnes79e53942008-11-07 14:24:08 -080051
52 switch(mode) {
53 case DRM_MODE_DPMS_ON:
54 temp |= ADPA_DAC_ENABLE;
55 break;
56 case DRM_MODE_DPMS_STANDBY:
57 temp |= ADPA_DAC_ENABLE | ADPA_HSYNC_CNTL_DISABLE;
58 break;
59 case DRM_MODE_DPMS_SUSPEND:
60 temp |= ADPA_DAC_ENABLE | ADPA_VSYNC_CNTL_DISABLE;
61 break;
62 case DRM_MODE_DPMS_OFF:
63 temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE;
64 break;
65 }
66
Zhenyu Wang2c072452009-06-05 15:38:42 +080067 I915_WRITE(reg, temp);
Jesse Barnes79e53942008-11-07 14:24:08 -080068}
69
70static int intel_crt_mode_valid(struct drm_connector *connector,
71 struct drm_display_mode *mode)
72{
Zhao Yakui6bcdcd92009-03-03 18:06:42 +080073 struct drm_device *dev = connector->dev;
74
75 int max_clock = 0;
Jesse Barnes79e53942008-11-07 14:24:08 -080076 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
77 return MODE_NO_DBLESCAN;
78
Zhao Yakui6bcdcd92009-03-03 18:06:42 +080079 if (mode->clock < 25000)
80 return MODE_CLOCK_LOW;
81
82 if (!IS_I9XX(dev))
83 max_clock = 350000;
84 else
85 max_clock = 400000;
86 if (mode->clock > max_clock)
87 return MODE_CLOCK_HIGH;
Jesse Barnes79e53942008-11-07 14:24:08 -080088
89 return MODE_OK;
90}
91
92static bool intel_crt_mode_fixup(struct drm_encoder *encoder,
93 struct drm_display_mode *mode,
94 struct drm_display_mode *adjusted_mode)
95{
96 return true;
97}
98
99static void intel_crt_mode_set(struct drm_encoder *encoder,
100 struct drm_display_mode *mode,
101 struct drm_display_mode *adjusted_mode)
102{
103
104 struct drm_device *dev = encoder->dev;
105 struct drm_crtc *crtc = encoder->crtc;
106 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
107 struct drm_i915_private *dev_priv = dev->dev_private;
108 int dpll_md_reg;
109 u32 adpa, dpll_md;
Zhenyu Wang2c072452009-06-05 15:38:42 +0800110 u32 adpa_reg;
Jesse Barnes79e53942008-11-07 14:24:08 -0800111
112 if (intel_crtc->pipe == 0)
113 dpll_md_reg = DPLL_A_MD;
114 else
115 dpll_md_reg = DPLL_B_MD;
116
Eric Anholtbad720f2009-10-22 16:11:14 -0700117 if (HAS_PCH_SPLIT(dev))
Zhenyu Wang2c072452009-06-05 15:38:42 +0800118 adpa_reg = PCH_ADPA;
119 else
120 adpa_reg = ADPA;
121
Jesse Barnes79e53942008-11-07 14:24:08 -0800122 /*
123 * Disable separate mode multiplier used when cloning SDVO to CRT
124 * XXX this needs to be adjusted when we really are cloning
125 */
Eric Anholtbad720f2009-10-22 16:11:14 -0700126 if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) {
Jesse Barnes79e53942008-11-07 14:24:08 -0800127 dpll_md = I915_READ(dpll_md_reg);
128 I915_WRITE(dpll_md_reg,
129 dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK);
130 }
131
132 adpa = 0;
133 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
134 adpa |= ADPA_HSYNC_ACTIVE_HIGH;
135 if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
136 adpa |= ADPA_VSYNC_ACTIVE_HIGH;
137
Zhao Yakui6bcdcd92009-03-03 18:06:42 +0800138 if (intel_crtc->pipe == 0) {
Zhenyu Wang8db9d772010-04-07 16:15:54 +0800139 if (HAS_PCH_CPT(dev))
140 adpa |= PORT_TRANS_A_SEL_CPT;
141 else
142 adpa |= ADPA_PIPE_A_SELECT;
Eric Anholtbad720f2009-10-22 16:11:14 -0700143 if (!HAS_PCH_SPLIT(dev))
Zhenyu Wang2c072452009-06-05 15:38:42 +0800144 I915_WRITE(BCLRPAT_A, 0);
Zhao Yakui6bcdcd92009-03-03 18:06:42 +0800145 } else {
Zhenyu Wang8db9d772010-04-07 16:15:54 +0800146 if (HAS_PCH_CPT(dev))
147 adpa |= PORT_TRANS_B_SEL_CPT;
148 else
149 adpa |= ADPA_PIPE_B_SELECT;
Eric Anholtbad720f2009-10-22 16:11:14 -0700150 if (!HAS_PCH_SPLIT(dev))
Zhenyu Wang2c072452009-06-05 15:38:42 +0800151 I915_WRITE(BCLRPAT_B, 0);
Zhao Yakui6bcdcd92009-03-03 18:06:42 +0800152 }
Jesse Barnes79e53942008-11-07 14:24:08 -0800153
Zhenyu Wang2c072452009-06-05 15:38:42 +0800154 I915_WRITE(adpa_reg, adpa);
155}
156
Adam Jacksonf2b115e2009-12-03 17:14:42 -0500157static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector)
Zhenyu Wang2c072452009-06-05 15:38:42 +0800158{
159 struct drm_device *dev = connector->dev;
160 struct drm_i915_private *dev_priv = dev->dev_private;
Zhenyu Wanga4a6b902010-04-07 16:15:55 +0800161 u32 adpa, temp;
Zhenyu Wang2c072452009-06-05 15:38:42 +0800162 bool ret;
Dave Airlied5dd96c2010-08-04 15:52:19 +1000163 bool turn_off_dac = false;
Zhenyu Wang2c072452009-06-05 15:38:42 +0800164
Zhenyu Wanga4a6b902010-04-07 16:15:55 +0800165 temp = adpa = I915_READ(PCH_ADPA);
Zhenyu Wang67941da2009-07-24 01:00:33 +0800166
Dave Airlied5dd96c2010-08-04 15:52:19 +1000167 if (HAS_PCH_SPLIT(dev))
168 turn_off_dac = true;
169
170 adpa &= ~ADPA_CRT_HOTPLUG_MASK;
171 if (turn_off_dac)
172 adpa &= ~ADPA_DAC_ENABLE;
173
174 /* disable HPD first */
175 I915_WRITE(PCH_ADPA, adpa);
176 (void)I915_READ(PCH_ADPA);
Zhenyu Wang2c072452009-06-05 15:38:42 +0800177
178 adpa |= (ADPA_CRT_HOTPLUG_PERIOD_128 |
179 ADPA_CRT_HOTPLUG_WARMUP_10MS |
180 ADPA_CRT_HOTPLUG_SAMPLE_4S |
181 ADPA_CRT_HOTPLUG_VOLTAGE_50 | /* default */
182 ADPA_CRT_HOTPLUG_VOLREF_325MV |
183 ADPA_CRT_HOTPLUG_ENABLE |
184 ADPA_CRT_HOTPLUG_FORCE_TRIGGER);
185
Zhao Yakui28c97732009-10-09 11:39:41 +0800186 DRM_DEBUG_KMS("pch crt adpa 0x%x", adpa);
Zhenyu Wang2c072452009-06-05 15:38:42 +0800187 I915_WRITE(PCH_ADPA, adpa);
188
Chris Wilson913d8d12010-08-07 11:01:35 +0100189 if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0,
Chris Wilson481b6af2010-08-23 17:43:35 +0100190 1000))
Chris Wilson913d8d12010-08-07 11:01:35 +0100191 DRM_ERROR("timed out waiting for FORCE_TRIGGER");
Zhenyu Wang2c072452009-06-05 15:38:42 +0800192
Dave Airlied5dd96c2010-08-04 15:52:19 +1000193 if (turn_off_dac) {
Zhenyu Wanga4a6b902010-04-07 16:15:55 +0800194 I915_WRITE(PCH_ADPA, temp);
195 (void)I915_READ(PCH_ADPA);
196 }
197
Zhenyu Wang2c072452009-06-05 15:38:42 +0800198 /* Check the status to see if both blue and green are on now */
199 adpa = I915_READ(PCH_ADPA);
Zhenyu Wang67941da2009-07-24 01:00:33 +0800200 adpa &= ADPA_CRT_HOTPLUG_MONITOR_MASK;
201 if ((adpa == ADPA_CRT_HOTPLUG_MONITOR_COLOR) ||
202 (adpa == ADPA_CRT_HOTPLUG_MONITOR_MONO))
Zhenyu Wang2c072452009-06-05 15:38:42 +0800203 ret = true;
204 else
205 ret = false;
206
Zhenyu Wang2c072452009-06-05 15:38:42 +0800207 return ret;
Jesse Barnes79e53942008-11-07 14:24:08 -0800208}
209
210/**
211 * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence.
212 *
213 * Not for i915G/i915GM
214 *
215 * \return true if CRT is connected.
216 * \return false if CRT is disconnected.
217 */
218static bool intel_crt_detect_hotplug(struct drm_connector *connector)
219{
220 struct drm_device *dev = connector->dev;
221 struct drm_i915_private *dev_priv = dev->dev_private;
Adam Jackson7a772c42010-05-24 16:46:29 -0400222 u32 hotplug_en, orig, stat;
223 bool ret = false;
Zhao Yakui771cb082009-03-03 18:07:52 +0800224 int i, tries = 0;
Zhenyu Wang2c072452009-06-05 15:38:42 +0800225
Eric Anholtbad720f2009-10-22 16:11:14 -0700226 if (HAS_PCH_SPLIT(dev))
Adam Jacksonf2b115e2009-12-03 17:14:42 -0500227 return intel_ironlake_crt_detect_hotplug(connector);
Zhenyu Wang2c072452009-06-05 15:38:42 +0800228
Zhao Yakui771cb082009-03-03 18:07:52 +0800229 /*
230 * On 4 series desktop, CRT detect sequence need to be done twice
231 * to get a reliable result.
232 */
Jesse Barnes79e53942008-11-07 14:24:08 -0800233
Zhao Yakui771cb082009-03-03 18:07:52 +0800234 if (IS_G4X(dev) && !IS_GM45(dev))
235 tries = 2;
236 else
237 tries = 1;
Adam Jackson7a772c42010-05-24 16:46:29 -0400238 hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN);
Zhao Yakui771cb082009-03-03 18:07:52 +0800239 hotplug_en |= CRT_HOTPLUG_FORCE_DETECT;
Jesse Barnes79e53942008-11-07 14:24:08 -0800240
Zhao Yakui771cb082009-03-03 18:07:52 +0800241 for (i = 0; i < tries ; i++) {
Zhao Yakui771cb082009-03-03 18:07:52 +0800242 /* turn on the FORCE_DETECT */
243 I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
Zhao Yakui771cb082009-03-03 18:07:52 +0800244 /* wait for FORCE_DETECT to go off */
Chris Wilson913d8d12010-08-07 11:01:35 +0100245 if (wait_for((I915_READ(PORT_HOTPLUG_EN) &
246 CRT_HOTPLUG_FORCE_DETECT) == 0,
Chris Wilson481b6af2010-08-23 17:43:35 +0100247 1000))
Chris Wilson913d8d12010-08-07 11:01:35 +0100248 DRM_ERROR("timed out waiting for FORCE_DETECT to go off");
Zhao Yakui771cb082009-03-03 18:07:52 +0800249 }
Jesse Barnes79e53942008-11-07 14:24:08 -0800250
Adam Jackson7a772c42010-05-24 16:46:29 -0400251 stat = I915_READ(PORT_HOTPLUG_STAT);
252 if ((stat & CRT_HOTPLUG_MONITOR_MASK) != CRT_HOTPLUG_MONITOR_NONE)
253 ret = true;
Jesse Barnes79e53942008-11-07 14:24:08 -0800254
Adam Jackson7a772c42010-05-24 16:46:29 -0400255 /* clear the interrupt we just generated, if any */
256 I915_WRITE(PORT_HOTPLUG_STAT, CRT_HOTPLUG_INT_STATUS);
257
258 /* and put the bits back */
259 I915_WRITE(PORT_HOTPLUG_EN, orig);
260
261 return ret;
Jesse Barnes79e53942008-11-07 14:24:08 -0800262}
263
Zhenyu Wang454c1ca2010-03-29 15:53:23 +0800264static bool intel_crt_detect_ddc(struct drm_encoder *encoder)
Jesse Barnes79e53942008-11-07 14:24:08 -0800265{
Chris Wilson4ef69c72010-09-09 15:14:28 +0100266 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
Chris Wilsonf899fc62010-07-20 15:44:45 -0700267 struct drm_i915_private *dev_priv = encoder->dev->dev_private;
Jesse Barnes79e53942008-11-07 14:24:08 -0800268
269 /* CRT should always be at 0, but check anyway */
Eric Anholt21d40d32010-03-25 11:11:14 -0700270 if (intel_encoder->type != INTEL_OUTPUT_ANALOG)
Jesse Barnes79e53942008-11-07 14:24:08 -0800271 return false;
272
Chris Wilsonf899fc62010-07-20 15:44:45 -0700273 return intel_ddc_probe(intel_encoder, dev_priv->crt_ddc_pin);
Jesse Barnes79e53942008-11-07 14:24:08 -0800274}
275
Ma Linge4a5d542009-05-26 11:31:00 +0800276static enum drm_connector_status
Eric Anholt21d40d32010-03-25 11:11:14 -0700277intel_crt_load_detect(struct drm_crtc *crtc, struct intel_encoder *intel_encoder)
Ma Linge4a5d542009-05-26 11:31:00 +0800278{
Chris Wilson4ef69c72010-09-09 15:14:28 +0100279 struct drm_encoder *encoder = &intel_encoder->base;
Ma Linge4a5d542009-05-26 11:31:00 +0800280 struct drm_device *dev = encoder->dev;
281 struct drm_i915_private *dev_priv = dev->dev_private;
282 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
283 uint32_t pipe = intel_crtc->pipe;
284 uint32_t save_bclrpat;
285 uint32_t save_vtotal;
286 uint32_t vtotal, vactive;
287 uint32_t vsample;
288 uint32_t vblank, vblank_start, vblank_end;
289 uint32_t dsl;
290 uint32_t bclrpat_reg;
291 uint32_t vtotal_reg;
292 uint32_t vblank_reg;
293 uint32_t vsync_reg;
294 uint32_t pipeconf_reg;
295 uint32_t pipe_dsl_reg;
296 uint8_t st00;
297 enum drm_connector_status status;
298
299 if (pipe == 0) {
300 bclrpat_reg = BCLRPAT_A;
301 vtotal_reg = VTOTAL_A;
302 vblank_reg = VBLANK_A;
303 vsync_reg = VSYNC_A;
304 pipeconf_reg = PIPEACONF;
305 pipe_dsl_reg = PIPEADSL;
306 } else {
307 bclrpat_reg = BCLRPAT_B;
308 vtotal_reg = VTOTAL_B;
309 vblank_reg = VBLANK_B;
310 vsync_reg = VSYNC_B;
311 pipeconf_reg = PIPEBCONF;
312 pipe_dsl_reg = PIPEBDSL;
313 }
314
315 save_bclrpat = I915_READ(bclrpat_reg);
316 save_vtotal = I915_READ(vtotal_reg);
317 vblank = I915_READ(vblank_reg);
318
319 vtotal = ((save_vtotal >> 16) & 0xfff) + 1;
320 vactive = (save_vtotal & 0x7ff) + 1;
321
322 vblank_start = (vblank & 0xfff) + 1;
323 vblank_end = ((vblank >> 16) & 0xfff) + 1;
324
325 /* Set the border color to purple. */
326 I915_WRITE(bclrpat_reg, 0x500050);
327
328 if (IS_I9XX(dev)) {
329 uint32_t pipeconf = I915_READ(pipeconf_reg);
330 I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER);
Chris Wilson19c55da2010-08-09 14:50:53 +0100331 POSTING_READ(pipeconf_reg);
Ma Linge4a5d542009-05-26 11:31:00 +0800332 /* Wait for next Vblank to substitue
333 * border color for Color info */
Jesse Barnes9d0498a2010-08-18 13:20:54 -0700334 intel_wait_for_vblank(dev, pipe);
Ma Linge4a5d542009-05-26 11:31:00 +0800335 st00 = I915_READ8(VGA_MSR_WRITE);
336 status = ((st00 & (1 << 4)) != 0) ?
337 connector_status_connected :
338 connector_status_disconnected;
339
340 I915_WRITE(pipeconf_reg, pipeconf);
341 } else {
342 bool restore_vblank = false;
343 int count, detect;
344
345 /*
346 * If there isn't any border, add some.
347 * Yes, this will flicker
348 */
349 if (vblank_start <= vactive && vblank_end >= vtotal) {
350 uint32_t vsync = I915_READ(vsync_reg);
351 uint32_t vsync_start = (vsync & 0xffff) + 1;
352
353 vblank_start = vsync_start;
354 I915_WRITE(vblank_reg,
355 (vblank_start - 1) |
356 ((vblank_end - 1) << 16));
357 restore_vblank = true;
358 }
359 /* sample in the vertical border, selecting the larger one */
360 if (vblank_start - vactive >= vtotal - vblank_end)
361 vsample = (vblank_start + vactive) >> 1;
362 else
363 vsample = (vtotal + vblank_end) >> 1;
364
365 /*
366 * Wait for the border to be displayed
367 */
368 while (I915_READ(pipe_dsl_reg) >= vactive)
369 ;
370 while ((dsl = I915_READ(pipe_dsl_reg)) <= vsample)
371 ;
372 /*
373 * Watch ST00 for an entire scanline
374 */
375 detect = 0;
376 count = 0;
377 do {
378 count++;
379 /* Read the ST00 VGA status register */
380 st00 = I915_READ8(VGA_MSR_WRITE);
381 if (st00 & (1 << 4))
382 detect++;
383 } while ((I915_READ(pipe_dsl_reg) == dsl));
384
385 /* restore vblank if necessary */
386 if (restore_vblank)
387 I915_WRITE(vblank_reg, vblank);
388 /*
389 * If more than 3/4 of the scanline detected a monitor,
390 * then it is assumed to be present. This works even on i830,
391 * where there isn't any way to force the border color across
392 * the screen
393 */
394 status = detect * 4 > count * 3 ?
395 connector_status_connected :
396 connector_status_disconnected;
397 }
398
399 /* Restore previous settings */
400 I915_WRITE(bclrpat_reg, save_bclrpat);
401
402 return status;
403}
404
Jesse Barnes79e53942008-11-07 14:24:08 -0800405static enum drm_connector_status intel_crt_detect(struct drm_connector *connector)
406{
407 struct drm_device *dev = connector->dev;
Chris Wilsondf0e9242010-09-09 16:20:55 +0100408 struct intel_encoder *encoder = intel_attached_encoder(connector);
Ma Linge4a5d542009-05-26 11:31:00 +0800409 struct drm_crtc *crtc;
410 int dpms_mode;
411 enum drm_connector_status status;
Jesse Barnes79e53942008-11-07 14:24:08 -0800412
413 if (IS_I9XX(dev) && !IS_I915G(dev) && !IS_I915GM(dev)) {
414 if (intel_crt_detect_hotplug(connector))
415 return connector_status_connected;
416 else
417 return connector_status_disconnected;
418 }
419
Chris Wilsondf0e9242010-09-09 16:20:55 +0100420 if (intel_crt_detect_ddc(&encoder->base))
Jesse Barnes79e53942008-11-07 14:24:08 -0800421 return connector_status_connected;
422
Ma Linge4a5d542009-05-26 11:31:00 +0800423 /* for pre-945g platforms use load detect */
Chris Wilsondf0e9242010-09-09 16:20:55 +0100424 if (encoder->base.crtc && encoder->base.crtc->enabled) {
425 status = intel_crt_load_detect(encoder->base.crtc, encoder);
Ma Linge4a5d542009-05-26 11:31:00 +0800426 } else {
Chris Wilsondf0e9242010-09-09 16:20:55 +0100427 crtc = intel_get_load_detect_pipe(encoder, connector,
Ma Linge4a5d542009-05-26 11:31:00 +0800428 NULL, &dpms_mode);
429 if (crtc) {
Chris Wilsondf0e9242010-09-09 16:20:55 +0100430 status = intel_crt_load_detect(crtc, encoder);
431 intel_release_load_detect_pipe(encoder,
Zhenyu Wangc1c43972010-03-30 14:39:30 +0800432 connector, dpms_mode);
Ma Linge4a5d542009-05-26 11:31:00 +0800433 } else
434 status = connector_status_unknown;
435 }
436
437 return status;
Jesse Barnes79e53942008-11-07 14:24:08 -0800438}
439
440static void intel_crt_destroy(struct drm_connector *connector)
441{
Jesse Barnes79e53942008-11-07 14:24:08 -0800442 drm_sysfs_connector_remove(connector);
443 drm_connector_cleanup(connector);
444 kfree(connector);
445}
446
447static int intel_crt_get_modes(struct drm_connector *connector)
448{
ling.ma@intel.com8e4d36b2009-06-30 11:35:34 +0800449 struct drm_device *dev = connector->dev;
Chris Wilsonf899fc62010-07-20 15:44:45 -0700450 struct drm_i915_private *dev_priv = dev->dev_private;
Chris Wilson890f3352010-09-14 16:46:59 +0100451 int ret;
ling.ma@intel.com8e4d36b2009-06-30 11:35:34 +0800452
Chris Wilsonf899fc62010-07-20 15:44:45 -0700453 ret = intel_ddc_get_modes(connector,
454 &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter);
ling.ma@intel.com8e4d36b2009-06-30 11:35:34 +0800455 if (ret || !IS_G4X(dev))
Chris Wilsonf899fc62010-07-20 15:44:45 -0700456 return ret;
ling.ma@intel.com8e4d36b2009-06-30 11:35:34 +0800457
ling.ma@intel.com8e4d36b2009-06-30 11:35:34 +0800458 /* Try to probe digital port for output in DVI-I -> VGA mode. */
Chris Wilsonf899fc62010-07-20 15:44:45 -0700459 return intel_ddc_get_modes(connector,
460 &dev_priv->gmbus[GMBUS_PORT_DPB].adapter);
Jesse Barnes79e53942008-11-07 14:24:08 -0800461}
462
463static int intel_crt_set_property(struct drm_connector *connector,
464 struct drm_property *property,
465 uint64_t value)
466{
Jesse Barnes79e53942008-11-07 14:24:08 -0800467 return 0;
468}
469
470/*
471 * Routines for controlling stuff on the analog port
472 */
473
474static const struct drm_encoder_helper_funcs intel_crt_helper_funcs = {
475 .dpms = intel_crt_dpms,
476 .mode_fixup = intel_crt_mode_fixup,
477 .prepare = intel_encoder_prepare,
478 .commit = intel_encoder_commit,
479 .mode_set = intel_crt_mode_set,
480};
481
482static const struct drm_connector_funcs intel_crt_connector_funcs = {
Keith Packardc9fb15f2009-05-30 20:42:28 -0700483 .dpms = drm_helper_connector_dpms,
Jesse Barnes79e53942008-11-07 14:24:08 -0800484 .detect = intel_crt_detect,
485 .fill_modes = drm_helper_probe_single_connector_modes,
486 .destroy = intel_crt_destroy,
487 .set_property = intel_crt_set_property,
488};
489
490static const struct drm_connector_helper_funcs intel_crt_connector_helper_funcs = {
491 .mode_valid = intel_crt_mode_valid,
492 .get_modes = intel_crt_get_modes,
Chris Wilsondf0e9242010-09-09 16:20:55 +0100493 .best_encoder = intel_best_encoder,
Jesse Barnes79e53942008-11-07 14:24:08 -0800494};
495
Jesse Barnes79e53942008-11-07 14:24:08 -0800496static const struct drm_encoder_funcs intel_crt_enc_funcs = {
Chris Wilsonea5b2132010-08-04 13:50:23 +0100497 .destroy = intel_encoder_destroy,
Jesse Barnes79e53942008-11-07 14:24:08 -0800498};
499
500void intel_crt_init(struct drm_device *dev)
501{
502 struct drm_connector *connector;
Eric Anholt21d40d32010-03-25 11:11:14 -0700503 struct intel_encoder *intel_encoder;
Zhenyu Wang454c1ca2010-03-29 15:53:23 +0800504 struct intel_connector *intel_connector;
David Müller (ELSOFT AG)db545012009-08-29 08:54:45 +0200505 struct drm_i915_private *dev_priv = dev->dev_private;
Jesse Barnes79e53942008-11-07 14:24:08 -0800506
Eric Anholt21d40d32010-03-25 11:11:14 -0700507 intel_encoder = kzalloc(sizeof(struct intel_encoder), GFP_KERNEL);
508 if (!intel_encoder)
Jesse Barnes79e53942008-11-07 14:24:08 -0800509 return;
510
Zhenyu Wang454c1ca2010-03-29 15:53:23 +0800511 intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
512 if (!intel_connector) {
513 kfree(intel_encoder);
514 return;
515 }
516
517 connector = &intel_connector->base;
518 drm_connector_init(dev, &intel_connector->base,
Jesse Barnes79e53942008-11-07 14:24:08 -0800519 &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
520
Chris Wilson4ef69c72010-09-09 15:14:28 +0100521 drm_encoder_init(dev, &intel_encoder->base, &intel_crt_enc_funcs,
Jesse Barnes79e53942008-11-07 14:24:08 -0800522 DRM_MODE_ENCODER_DAC);
523
Chris Wilsondf0e9242010-09-09 16:20:55 +0100524 intel_connector_attach_encoder(intel_connector, intel_encoder);
Jesse Barnes79e53942008-11-07 14:24:08 -0800525
Eric Anholt21d40d32010-03-25 11:11:14 -0700526 intel_encoder->type = INTEL_OUTPUT_ANALOG;
527 intel_encoder->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
Ma Lingf8aed702009-08-24 13:50:24 +0800528 (1 << INTEL_ANALOG_CLONE_BIT) |
529 (1 << INTEL_SDVO_LVDS_CLONE_BIT);
Eric Anholt21d40d32010-03-25 11:11:14 -0700530 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
Krzysztof Halasa734b4152010-05-25 18:41:46 +0200531 connector->interlace_allowed = 1;
Jesse Barnes79e53942008-11-07 14:24:08 -0800532 connector->doublescan_allowed = 0;
533
Chris Wilson4ef69c72010-09-09 15:14:28 +0100534 drm_encoder_helper_add(&intel_encoder->base, &intel_crt_helper_funcs);
Jesse Barnes79e53942008-11-07 14:24:08 -0800535 drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs);
536
537 drm_sysfs_connector_add(connector);
Jesse Barnesb01f2c32009-12-11 11:07:17 -0800538
Dave Airlieeb1f8e42010-05-07 06:42:51 +0000539 if (I915_HAS_HOTPLUG(dev))
540 connector->polled = DRM_CONNECTOR_POLL_HPD;
541 else
542 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
543
Jesse Barnesb01f2c32009-12-11 11:07:17 -0800544 dev_priv->hotplug_supported_mask |= CRT_HOTPLUG_INT_STATUS;
Jesse Barnes79e53942008-11-07 14:24:08 -0800545}