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drm/i915: Constify adjusted_mode
[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_sdvo.c
1 /*
2 * Copyright 2006 Dave Airlie <airlied@linux.ie>
3 * Copyright © 2006-2007 Intel Corporation
4 * Jesse Barnes <jesse.barnes@intel.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Eric Anholt <eric@anholt.net>
27 */
28 #include <linux/i2c.h>
29 #include <linux/slab.h>
30 #include <linux/delay.h>
31 #include <linux/export.h>
32 #include <drm/drmP.h>
33 #include <drm/drm_atomic_helper.h>
34 #include <drm/drm_crtc.h>
35 #include <drm/drm_edid.h>
36 #include "intel_drv.h"
37 #include <drm/i915_drm.h>
38 #include "i915_drv.h"
39 #include "intel_sdvo_regs.h"
40
41 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
42 #define SDVO_RGB_MASK (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
43 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
44 #define SDVO_TV_MASK (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0)
45
46 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
47 SDVO_TV_MASK)
48
49 #define IS_TV(c) (c->output_flag & SDVO_TV_MASK)
50 #define IS_TMDS(c) (c->output_flag & SDVO_TMDS_MASK)
51 #define IS_LVDS(c) (c->output_flag & SDVO_LVDS_MASK)
52 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
53 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
54
55
56 static const char * const tv_format_names[] = {
57 "NTSC_M" , "NTSC_J" , "NTSC_443",
58 "PAL_B" , "PAL_D" , "PAL_G" ,
59 "PAL_H" , "PAL_I" , "PAL_M" ,
60 "PAL_N" , "PAL_NC" , "PAL_60" ,
61 "SECAM_B" , "SECAM_D" , "SECAM_G" ,
62 "SECAM_K" , "SECAM_K1", "SECAM_L" ,
63 "SECAM_60"
64 };
65
66 #define TV_FORMAT_NUM ARRAY_SIZE(tv_format_names)
67
68 struct intel_sdvo {
69 struct intel_encoder base;
70
71 struct i2c_adapter *i2c;
72 u8 slave_addr;
73
74 struct i2c_adapter ddc;
75
76 /* Register for the SDVO device: SDVOB or SDVOC */
77 uint32_t sdvo_reg;
78
79 /* Active outputs controlled by this SDVO output */
80 uint16_t controlled_output;
81
82 /*
83 * Capabilities of the SDVO device returned by
84 * intel_sdvo_get_capabilities()
85 */
86 struct intel_sdvo_caps caps;
87
88 /* Pixel clock limitations reported by the SDVO device, in kHz */
89 int pixel_clock_min, pixel_clock_max;
90
91 /*
92 * For multiple function SDVO device,
93 * this is for current attached outputs.
94 */
95 uint16_t attached_output;
96
97 /*
98 * Hotplug activation bits for this device
99 */
100 uint16_t hotplug_active;
101
102 /**
103 * This is used to select the color range of RBG outputs in HDMI mode.
104 * It is only valid when using TMDS encoding and 8 bit per color mode.
105 */
106 uint32_t color_range;
107 bool color_range_auto;
108
109 /**
110 * This is set if we're going to treat the device as TV-out.
111 *
112 * While we have these nice friendly flags for output types that ought
113 * to decide this for us, the S-Video output on our HDMI+S-Video card
114 * shows up as RGB1 (VGA).
115 */
116 bool is_tv;
117
118 /* On different gens SDVOB is at different places. */
119 bool is_sdvob;
120
121 /* This is for current tv format name */
122 int tv_format_index;
123
124 /**
125 * This is set if we treat the device as HDMI, instead of DVI.
126 */
127 bool is_hdmi;
128 bool has_hdmi_monitor;
129 bool has_hdmi_audio;
130 bool rgb_quant_range_selectable;
131
132 /**
133 * This is set if we detect output of sdvo device as LVDS and
134 * have a valid fixed mode to use with the panel.
135 */
136 bool is_lvds;
137
138 /**
139 * This is sdvo fixed pannel mode pointer
140 */
141 struct drm_display_mode *sdvo_lvds_fixed_mode;
142
143 /* DDC bus used by this SDVO encoder */
144 uint8_t ddc_bus;
145
146 /*
147 * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd
148 */
149 uint8_t dtd_sdvo_flags;
150 };
151
152 struct intel_sdvo_connector {
153 struct intel_connector base;
154
155 /* Mark the type of connector */
156 uint16_t output_flag;
157
158 enum hdmi_force_audio force_audio;
159
160 /* This contains all current supported TV format */
161 u8 tv_format_supported[TV_FORMAT_NUM];
162 int format_supported_num;
163 struct drm_property *tv_format;
164
165 /* add the property for the SDVO-TV */
166 struct drm_property *left;
167 struct drm_property *right;
168 struct drm_property *top;
169 struct drm_property *bottom;
170 struct drm_property *hpos;
171 struct drm_property *vpos;
172 struct drm_property *contrast;
173 struct drm_property *saturation;
174 struct drm_property *hue;
175 struct drm_property *sharpness;
176 struct drm_property *flicker_filter;
177 struct drm_property *flicker_filter_adaptive;
178 struct drm_property *flicker_filter_2d;
179 struct drm_property *tv_chroma_filter;
180 struct drm_property *tv_luma_filter;
181 struct drm_property *dot_crawl;
182
183 /* add the property for the SDVO-TV/LVDS */
184 struct drm_property *brightness;
185
186 /* Add variable to record current setting for the above property */
187 u32 left_margin, right_margin, top_margin, bottom_margin;
188
189 /* this is to get the range of margin.*/
190 u32 max_hscan, max_vscan;
191 u32 max_hpos, cur_hpos;
192 u32 max_vpos, cur_vpos;
193 u32 cur_brightness, max_brightness;
194 u32 cur_contrast, max_contrast;
195 u32 cur_saturation, max_saturation;
196 u32 cur_hue, max_hue;
197 u32 cur_sharpness, max_sharpness;
198 u32 cur_flicker_filter, max_flicker_filter;
199 u32 cur_flicker_filter_adaptive, max_flicker_filter_adaptive;
200 u32 cur_flicker_filter_2d, max_flicker_filter_2d;
201 u32 cur_tv_chroma_filter, max_tv_chroma_filter;
202 u32 cur_tv_luma_filter, max_tv_luma_filter;
203 u32 cur_dot_crawl, max_dot_crawl;
204 };
205
206 static struct intel_sdvo *to_sdvo(struct intel_encoder *encoder)
207 {
208 return container_of(encoder, struct intel_sdvo, base);
209 }
210
211 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
212 {
213 return to_sdvo(intel_attached_encoder(connector));
214 }
215
216 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
217 {
218 return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
219 }
220
221 static bool
222 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
223 static bool
224 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
225 struct intel_sdvo_connector *intel_sdvo_connector,
226 int type);
227 static bool
228 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
229 struct intel_sdvo_connector *intel_sdvo_connector);
230
231 /**
232 * Writes the SDVOB or SDVOC with the given value, but always writes both
233 * SDVOB and SDVOC to work around apparent hardware issues (according to
234 * comments in the BIOS).
235 */
236 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
237 {
238 struct drm_device *dev = intel_sdvo->base.base.dev;
239 struct drm_i915_private *dev_priv = dev->dev_private;
240 u32 bval = val, cval = val;
241 int i;
242
243 if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
244 I915_WRITE(intel_sdvo->sdvo_reg, val);
245 POSTING_READ(intel_sdvo->sdvo_reg);
246 /*
247 * HW workaround, need to write this twice for issue
248 * that may result in first write getting masked.
249 */
250 if (HAS_PCH_IBX(dev)) {
251 I915_WRITE(intel_sdvo->sdvo_reg, val);
252 POSTING_READ(intel_sdvo->sdvo_reg);
253 }
254 return;
255 }
256
257 if (intel_sdvo->sdvo_reg == GEN3_SDVOB)
258 cval = I915_READ(GEN3_SDVOC);
259 else
260 bval = I915_READ(GEN3_SDVOB);
261
262 /*
263 * Write the registers twice for luck. Sometimes,
264 * writing them only once doesn't appear to 'stick'.
265 * The BIOS does this too. Yay, magic
266 */
267 for (i = 0; i < 2; i++)
268 {
269 I915_WRITE(GEN3_SDVOB, bval);
270 POSTING_READ(GEN3_SDVOB);
271 I915_WRITE(GEN3_SDVOC, cval);
272 POSTING_READ(GEN3_SDVOC);
273 }
274 }
275
276 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
277 {
278 struct i2c_msg msgs[] = {
279 {
280 .addr = intel_sdvo->slave_addr,
281 .flags = 0,
282 .len = 1,
283 .buf = &addr,
284 },
285 {
286 .addr = intel_sdvo->slave_addr,
287 .flags = I2C_M_RD,
288 .len = 1,
289 .buf = ch,
290 }
291 };
292 int ret;
293
294 if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
295 return true;
296
297 DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
298 return false;
299 }
300
301 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
302 /** Mapping of command numbers to names, for debug output */
303 static const struct _sdvo_cmd_name {
304 u8 cmd;
305 const char *name;
306 } sdvo_cmd_names[] = {
307 SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
308 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
309 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
310 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
311 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
312 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
313 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
314 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
315 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
316 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
317 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
318 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
319 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
320 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
321 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
322 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
323 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
324 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
325 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
326 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
327 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
328 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
329 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
330 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
331 SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
332 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
333 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
334 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
335 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
336 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
337 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
338 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
339 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
340 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
341 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
342 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
343 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
344 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
345 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
346 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
347 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
348 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
349 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
350
351 /* Add the op code for SDVO enhancements */
352 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
353 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
354 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
355 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
356 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
357 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
358 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
359 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
360 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
361 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
362 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
363 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
364 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
365 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
366 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
367 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
368 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
369 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
370 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
371 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
372 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
373 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
374 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
375 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
376 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
377 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
378 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
379 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
380 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
381 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
382 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
383 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
384 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
385 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
386 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
387 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
388 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
389 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
390 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
391 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
392 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
393 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
394 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
395 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
396
397 /* HDMI op code */
398 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
399 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
400 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
401 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
402 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
403 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
404 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
405 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
406 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
407 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
408 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
409 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
410 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
411 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
412 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
413 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
414 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
415 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
416 SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
417 SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
418 };
419
420 #define SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC")
421
422 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
423 const void *args, int args_len)
424 {
425 int i, pos = 0;
426 #define BUF_LEN 256
427 char buffer[BUF_LEN];
428
429 #define BUF_PRINT(args...) \
430 pos += snprintf(buffer + pos, max_t(int, BUF_LEN - pos, 0), args)
431
432
433 for (i = 0; i < args_len; i++) {
434 BUF_PRINT("%02X ", ((u8 *)args)[i]);
435 }
436 for (; i < 8; i++) {
437 BUF_PRINT(" ");
438 }
439 for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
440 if (cmd == sdvo_cmd_names[i].cmd) {
441 BUF_PRINT("(%s)", sdvo_cmd_names[i].name);
442 break;
443 }
444 }
445 if (i == ARRAY_SIZE(sdvo_cmd_names)) {
446 BUF_PRINT("(%02X)", cmd);
447 }
448 BUG_ON(pos >= BUF_LEN - 1);
449 #undef BUF_PRINT
450 #undef BUF_LEN
451
452 DRM_DEBUG_KMS("%s: W: %02X %s\n", SDVO_NAME(intel_sdvo), cmd, buffer);
453 }
454
455 static const char * const cmd_status_names[] = {
456 "Power on",
457 "Success",
458 "Not supported",
459 "Invalid arg",
460 "Pending",
461 "Target not specified",
462 "Scaling not supported"
463 };
464
465 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
466 const void *args, int args_len)
467 {
468 u8 *buf, status;
469 struct i2c_msg *msgs;
470 int i, ret = true;
471
472 /* Would be simpler to allocate both in one go ? */
473 buf = kzalloc(args_len * 2 + 2, GFP_KERNEL);
474 if (!buf)
475 return false;
476
477 msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
478 if (!msgs) {
479 kfree(buf);
480 return false;
481 }
482
483 intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
484
485 for (i = 0; i < args_len; i++) {
486 msgs[i].addr = intel_sdvo->slave_addr;
487 msgs[i].flags = 0;
488 msgs[i].len = 2;
489 msgs[i].buf = buf + 2 *i;
490 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
491 buf[2*i + 1] = ((u8*)args)[i];
492 }
493 msgs[i].addr = intel_sdvo->slave_addr;
494 msgs[i].flags = 0;
495 msgs[i].len = 2;
496 msgs[i].buf = buf + 2*i;
497 buf[2*i + 0] = SDVO_I2C_OPCODE;
498 buf[2*i + 1] = cmd;
499
500 /* the following two are to read the response */
501 status = SDVO_I2C_CMD_STATUS;
502 msgs[i+1].addr = intel_sdvo->slave_addr;
503 msgs[i+1].flags = 0;
504 msgs[i+1].len = 1;
505 msgs[i+1].buf = &status;
506
507 msgs[i+2].addr = intel_sdvo->slave_addr;
508 msgs[i+2].flags = I2C_M_RD;
509 msgs[i+2].len = 1;
510 msgs[i+2].buf = &status;
511
512 ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
513 if (ret < 0) {
514 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
515 ret = false;
516 goto out;
517 }
518 if (ret != i+3) {
519 /* failure in I2C transfer */
520 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
521 ret = false;
522 }
523
524 out:
525 kfree(msgs);
526 kfree(buf);
527 return ret;
528 }
529
530 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
531 void *response, int response_len)
532 {
533 u8 retry = 15; /* 5 quick checks, followed by 10 long checks */
534 u8 status;
535 int i, pos = 0;
536 #define BUF_LEN 256
537 char buffer[BUF_LEN];
538
539
540 /*
541 * The documentation states that all commands will be
542 * processed within 15µs, and that we need only poll
543 * the status byte a maximum of 3 times in order for the
544 * command to be complete.
545 *
546 * Check 5 times in case the hardware failed to read the docs.
547 *
548 * Also beware that the first response by many devices is to
549 * reply PENDING and stall for time. TVs are notorious for
550 * requiring longer than specified to complete their replies.
551 * Originally (in the DDX long ago), the delay was only ever 15ms
552 * with an additional delay of 30ms applied for TVs added later after
553 * many experiments. To accommodate both sets of delays, we do a
554 * sequence of slow checks if the device is falling behind and fails
555 * to reply within 5*15µs.
556 */
557 if (!intel_sdvo_read_byte(intel_sdvo,
558 SDVO_I2C_CMD_STATUS,
559 &status))
560 goto log_fail;
561
562 while ((status == SDVO_CMD_STATUS_PENDING ||
563 status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && --retry) {
564 if (retry < 10)
565 msleep(15);
566 else
567 udelay(15);
568
569 if (!intel_sdvo_read_byte(intel_sdvo,
570 SDVO_I2C_CMD_STATUS,
571 &status))
572 goto log_fail;
573 }
574
575 #define BUF_PRINT(args...) \
576 pos += snprintf(buffer + pos, max_t(int, BUF_LEN - pos, 0), args)
577
578 if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
579 BUF_PRINT("(%s)", cmd_status_names[status]);
580 else
581 BUF_PRINT("(??? %d)", status);
582
583 if (status != SDVO_CMD_STATUS_SUCCESS)
584 goto log_fail;
585
586 /* Read the command response */
587 for (i = 0; i < response_len; i++) {
588 if (!intel_sdvo_read_byte(intel_sdvo,
589 SDVO_I2C_RETURN_0 + i,
590 &((u8 *)response)[i]))
591 goto log_fail;
592 BUF_PRINT(" %02X", ((u8 *)response)[i]);
593 }
594 BUG_ON(pos >= BUF_LEN - 1);
595 #undef BUF_PRINT
596 #undef BUF_LEN
597
598 DRM_DEBUG_KMS("%s: R: %s\n", SDVO_NAME(intel_sdvo), buffer);
599 return true;
600
601 log_fail:
602 DRM_DEBUG_KMS("%s: R: ... failed\n", SDVO_NAME(intel_sdvo));
603 return false;
604 }
605
606 static int intel_sdvo_get_pixel_multiplier(const struct drm_display_mode *adjusted_mode)
607 {
608 if (adjusted_mode->crtc_clock >= 100000)
609 return 1;
610 else if (adjusted_mode->crtc_clock >= 50000)
611 return 2;
612 else
613 return 4;
614 }
615
616 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
617 u8 ddc_bus)
618 {
619 /* This must be the immediately preceding write before the i2c xfer */
620 return intel_sdvo_write_cmd(intel_sdvo,
621 SDVO_CMD_SET_CONTROL_BUS_SWITCH,
622 &ddc_bus, 1);
623 }
624
625 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
626 {
627 if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
628 return false;
629
630 return intel_sdvo_read_response(intel_sdvo, NULL, 0);
631 }
632
633 static bool
634 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
635 {
636 if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
637 return false;
638
639 return intel_sdvo_read_response(intel_sdvo, value, len);
640 }
641
642 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
643 {
644 struct intel_sdvo_set_target_input_args targets = {0};
645 return intel_sdvo_set_value(intel_sdvo,
646 SDVO_CMD_SET_TARGET_INPUT,
647 &targets, sizeof(targets));
648 }
649
650 /**
651 * Return whether each input is trained.
652 *
653 * This function is making an assumption about the layout of the response,
654 * which should be checked against the docs.
655 */
656 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
657 {
658 struct intel_sdvo_get_trained_inputs_response response;
659
660 BUILD_BUG_ON(sizeof(response) != 1);
661 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
662 &response, sizeof(response)))
663 return false;
664
665 *input_1 = response.input0_trained;
666 *input_2 = response.input1_trained;
667 return true;
668 }
669
670 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
671 u16 outputs)
672 {
673 return intel_sdvo_set_value(intel_sdvo,
674 SDVO_CMD_SET_ACTIVE_OUTPUTS,
675 &outputs, sizeof(outputs));
676 }
677
678 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
679 u16 *outputs)
680 {
681 return intel_sdvo_get_value(intel_sdvo,
682 SDVO_CMD_GET_ACTIVE_OUTPUTS,
683 outputs, sizeof(*outputs));
684 }
685
686 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
687 int mode)
688 {
689 u8 state = SDVO_ENCODER_STATE_ON;
690
691 switch (mode) {
692 case DRM_MODE_DPMS_ON:
693 state = SDVO_ENCODER_STATE_ON;
694 break;
695 case DRM_MODE_DPMS_STANDBY:
696 state = SDVO_ENCODER_STATE_STANDBY;
697 break;
698 case DRM_MODE_DPMS_SUSPEND:
699 state = SDVO_ENCODER_STATE_SUSPEND;
700 break;
701 case DRM_MODE_DPMS_OFF:
702 state = SDVO_ENCODER_STATE_OFF;
703 break;
704 }
705
706 return intel_sdvo_set_value(intel_sdvo,
707 SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
708 }
709
710 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
711 int *clock_min,
712 int *clock_max)
713 {
714 struct intel_sdvo_pixel_clock_range clocks;
715
716 BUILD_BUG_ON(sizeof(clocks) != 4);
717 if (!intel_sdvo_get_value(intel_sdvo,
718 SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
719 &clocks, sizeof(clocks)))
720 return false;
721
722 /* Convert the values from units of 10 kHz to kHz. */
723 *clock_min = clocks.min * 10;
724 *clock_max = clocks.max * 10;
725 return true;
726 }
727
728 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
729 u16 outputs)
730 {
731 return intel_sdvo_set_value(intel_sdvo,
732 SDVO_CMD_SET_TARGET_OUTPUT,
733 &outputs, sizeof(outputs));
734 }
735
736 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
737 struct intel_sdvo_dtd *dtd)
738 {
739 return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
740 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
741 }
742
743 static bool intel_sdvo_get_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
744 struct intel_sdvo_dtd *dtd)
745 {
746 return intel_sdvo_get_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
747 intel_sdvo_get_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
748 }
749
750 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
751 struct intel_sdvo_dtd *dtd)
752 {
753 return intel_sdvo_set_timing(intel_sdvo,
754 SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
755 }
756
757 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
758 struct intel_sdvo_dtd *dtd)
759 {
760 return intel_sdvo_set_timing(intel_sdvo,
761 SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
762 }
763
764 static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo,
765 struct intel_sdvo_dtd *dtd)
766 {
767 return intel_sdvo_get_timing(intel_sdvo,
768 SDVO_CMD_GET_INPUT_TIMINGS_PART1, dtd);
769 }
770
771 static bool
772 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
773 uint16_t clock,
774 uint16_t width,
775 uint16_t height)
776 {
777 struct intel_sdvo_preferred_input_timing_args args;
778
779 memset(&args, 0, sizeof(args));
780 args.clock = clock;
781 args.width = width;
782 args.height = height;
783 args.interlace = 0;
784
785 if (intel_sdvo->is_lvds &&
786 (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
787 intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
788 args.scaled = 1;
789
790 return intel_sdvo_set_value(intel_sdvo,
791 SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
792 &args, sizeof(args));
793 }
794
795 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
796 struct intel_sdvo_dtd *dtd)
797 {
798 BUILD_BUG_ON(sizeof(dtd->part1) != 8);
799 BUILD_BUG_ON(sizeof(dtd->part2) != 8);
800 return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
801 &dtd->part1, sizeof(dtd->part1)) &&
802 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
803 &dtd->part2, sizeof(dtd->part2));
804 }
805
806 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
807 {
808 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
809 }
810
811 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
812 const struct drm_display_mode *mode)
813 {
814 uint16_t width, height;
815 uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
816 uint16_t h_sync_offset, v_sync_offset;
817 int mode_clock;
818
819 memset(dtd, 0, sizeof(*dtd));
820
821 width = mode->hdisplay;
822 height = mode->vdisplay;
823
824 /* do some mode translations */
825 h_blank_len = mode->htotal - mode->hdisplay;
826 h_sync_len = mode->hsync_end - mode->hsync_start;
827
828 v_blank_len = mode->vtotal - mode->vdisplay;
829 v_sync_len = mode->vsync_end - mode->vsync_start;
830
831 h_sync_offset = mode->hsync_start - mode->hdisplay;
832 v_sync_offset = mode->vsync_start - mode->vdisplay;
833
834 mode_clock = mode->clock;
835 mode_clock /= 10;
836 dtd->part1.clock = mode_clock;
837
838 dtd->part1.h_active = width & 0xff;
839 dtd->part1.h_blank = h_blank_len & 0xff;
840 dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
841 ((h_blank_len >> 8) & 0xf);
842 dtd->part1.v_active = height & 0xff;
843 dtd->part1.v_blank = v_blank_len & 0xff;
844 dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
845 ((v_blank_len >> 8) & 0xf);
846
847 dtd->part2.h_sync_off = h_sync_offset & 0xff;
848 dtd->part2.h_sync_width = h_sync_len & 0xff;
849 dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
850 (v_sync_len & 0xf);
851 dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
852 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
853 ((v_sync_len & 0x30) >> 4);
854
855 dtd->part2.dtd_flags = 0x18;
856 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
857 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
858 if (mode->flags & DRM_MODE_FLAG_PHSYNC)
859 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
860 if (mode->flags & DRM_MODE_FLAG_PVSYNC)
861 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
862
863 dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
864 }
865
866 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode *pmode,
867 const struct intel_sdvo_dtd *dtd)
868 {
869 struct drm_display_mode mode = {};
870
871 mode.hdisplay = dtd->part1.h_active;
872 mode.hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
873 mode.hsync_start = mode.hdisplay + dtd->part2.h_sync_off;
874 mode.hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
875 mode.hsync_end = mode.hsync_start + dtd->part2.h_sync_width;
876 mode.hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
877 mode.htotal = mode.hdisplay + dtd->part1.h_blank;
878 mode.htotal += (dtd->part1.h_high & 0xf) << 8;
879
880 mode.vdisplay = dtd->part1.v_active;
881 mode.vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
882 mode.vsync_start = mode.vdisplay;
883 mode.vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
884 mode.vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
885 mode.vsync_start += dtd->part2.v_sync_off_high & 0xc0;
886 mode.vsync_end = mode.vsync_start +
887 (dtd->part2.v_sync_off_width & 0xf);
888 mode.vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
889 mode.vtotal = mode.vdisplay + dtd->part1.v_blank;
890 mode.vtotal += (dtd->part1.v_high & 0xf) << 8;
891
892 mode.clock = dtd->part1.clock * 10;
893
894 if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
895 mode.flags |= DRM_MODE_FLAG_INTERLACE;
896 if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
897 mode.flags |= DRM_MODE_FLAG_PHSYNC;
898 else
899 mode.flags |= DRM_MODE_FLAG_NHSYNC;
900 if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
901 mode.flags |= DRM_MODE_FLAG_PVSYNC;
902 else
903 mode.flags |= DRM_MODE_FLAG_NVSYNC;
904
905 drm_mode_set_crtcinfo(&mode, 0);
906
907 drm_mode_copy(pmode, &mode);
908 }
909
910 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
911 {
912 struct intel_sdvo_encode encode;
913
914 BUILD_BUG_ON(sizeof(encode) != 2);
915 return intel_sdvo_get_value(intel_sdvo,
916 SDVO_CMD_GET_SUPP_ENCODE,
917 &encode, sizeof(encode));
918 }
919
920 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
921 uint8_t mode)
922 {
923 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
924 }
925
926 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
927 uint8_t mode)
928 {
929 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
930 }
931
932 #if 0
933 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
934 {
935 int i, j;
936 uint8_t set_buf_index[2];
937 uint8_t av_split;
938 uint8_t buf_size;
939 uint8_t buf[48];
940 uint8_t *pos;
941
942 intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
943
944 for (i = 0; i <= av_split; i++) {
945 set_buf_index[0] = i; set_buf_index[1] = 0;
946 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
947 set_buf_index, 2);
948 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
949 intel_sdvo_read_response(encoder, &buf_size, 1);
950
951 pos = buf;
952 for (j = 0; j <= buf_size; j += 8) {
953 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
954 NULL, 0);
955 intel_sdvo_read_response(encoder, pos, 8);
956 pos += 8;
957 }
958 }
959 }
960 #endif
961
962 static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
963 unsigned if_index, uint8_t tx_rate,
964 const uint8_t *data, unsigned length)
965 {
966 uint8_t set_buf_index[2] = { if_index, 0 };
967 uint8_t hbuf_size, tmp[8];
968 int i;
969
970 if (!intel_sdvo_set_value(intel_sdvo,
971 SDVO_CMD_SET_HBUF_INDEX,
972 set_buf_index, 2))
973 return false;
974
975 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
976 &hbuf_size, 1))
977 return false;
978
979 /* Buffer size is 0 based, hooray! */
980 hbuf_size++;
981
982 DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
983 if_index, length, hbuf_size);
984
985 for (i = 0; i < hbuf_size; i += 8) {
986 memset(tmp, 0, 8);
987 if (i < length)
988 memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
989
990 if (!intel_sdvo_set_value(intel_sdvo,
991 SDVO_CMD_SET_HBUF_DATA,
992 tmp, 8))
993 return false;
994 }
995
996 return intel_sdvo_set_value(intel_sdvo,
997 SDVO_CMD_SET_HBUF_TXRATE,
998 &tx_rate, 1);
999 }
1000
1001 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
1002 const struct drm_display_mode *adjusted_mode)
1003 {
1004 uint8_t sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
1005 struct drm_crtc *crtc = intel_sdvo->base.base.crtc;
1006 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1007 union hdmi_infoframe frame;
1008 int ret;
1009 ssize_t len;
1010
1011 ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
1012 adjusted_mode);
1013 if (ret < 0) {
1014 DRM_ERROR("couldn't fill AVI infoframe\n");
1015 return false;
1016 }
1017
1018 if (intel_sdvo->rgb_quant_range_selectable) {
1019 if (intel_crtc->config->limited_color_range)
1020 frame.avi.quantization_range =
1021 HDMI_QUANTIZATION_RANGE_LIMITED;
1022 else
1023 frame.avi.quantization_range =
1024 HDMI_QUANTIZATION_RANGE_FULL;
1025 }
1026
1027 len = hdmi_infoframe_pack(&frame, sdvo_data, sizeof(sdvo_data));
1028 if (len < 0)
1029 return false;
1030
1031 return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
1032 SDVO_HBUF_TX_VSYNC,
1033 sdvo_data, sizeof(sdvo_data));
1034 }
1035
1036 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
1037 {
1038 struct intel_sdvo_tv_format format;
1039 uint32_t format_map;
1040
1041 format_map = 1 << intel_sdvo->tv_format_index;
1042 memset(&format, 0, sizeof(format));
1043 memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
1044
1045 BUILD_BUG_ON(sizeof(format) != 6);
1046 return intel_sdvo_set_value(intel_sdvo,
1047 SDVO_CMD_SET_TV_FORMAT,
1048 &format, sizeof(format));
1049 }
1050
1051 static bool
1052 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
1053 const struct drm_display_mode *mode)
1054 {
1055 struct intel_sdvo_dtd output_dtd;
1056
1057 if (!intel_sdvo_set_target_output(intel_sdvo,
1058 intel_sdvo->attached_output))
1059 return false;
1060
1061 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1062 if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1063 return false;
1064
1065 return true;
1066 }
1067
1068 /* Asks the sdvo controller for the preferred input mode given the output mode.
1069 * Unfortunately we have to set up the full output mode to do that. */
1070 static bool
1071 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
1072 const struct drm_display_mode *mode,
1073 struct drm_display_mode *adjusted_mode)
1074 {
1075 struct intel_sdvo_dtd input_dtd;
1076
1077 /* Reset the input timing to the screen. Assume always input 0. */
1078 if (!intel_sdvo_set_target_input(intel_sdvo))
1079 return false;
1080
1081 if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
1082 mode->clock / 10,
1083 mode->hdisplay,
1084 mode->vdisplay))
1085 return false;
1086
1087 if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
1088 &input_dtd))
1089 return false;
1090
1091 intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
1092 intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags;
1093
1094 return true;
1095 }
1096
1097 static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config)
1098 {
1099 unsigned dotclock = pipe_config->port_clock;
1100 struct dpll *clock = &pipe_config->dpll;
1101
1102 /* SDVO TV has fixed PLL values depend on its clock range,
1103 this mirrors vbios setting. */
1104 if (dotclock >= 100000 && dotclock < 140500) {
1105 clock->p1 = 2;
1106 clock->p2 = 10;
1107 clock->n = 3;
1108 clock->m1 = 16;
1109 clock->m2 = 8;
1110 } else if (dotclock >= 140500 && dotclock <= 200000) {
1111 clock->p1 = 1;
1112 clock->p2 = 10;
1113 clock->n = 6;
1114 clock->m1 = 12;
1115 clock->m2 = 8;
1116 } else {
1117 WARN(1, "SDVO TV clock out of range: %i\n", dotclock);
1118 }
1119
1120 pipe_config->clock_set = true;
1121 }
1122
1123 static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
1124 struct intel_crtc_state *pipe_config)
1125 {
1126 struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1127 struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
1128 struct drm_display_mode *mode = &pipe_config->base.mode;
1129
1130 DRM_DEBUG_KMS("forcing bpc to 8 for SDVO\n");
1131 pipe_config->pipe_bpp = 8*3;
1132
1133 if (HAS_PCH_SPLIT(encoder->base.dev))
1134 pipe_config->has_pch_encoder = true;
1135
1136 /* We need to construct preferred input timings based on our
1137 * output timings. To do that, we have to set the output
1138 * timings, even though this isn't really the right place in
1139 * the sequence to do it. Oh well.
1140 */
1141 if (intel_sdvo->is_tv) {
1142 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1143 return false;
1144
1145 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1146 mode,
1147 adjusted_mode);
1148 pipe_config->sdvo_tv_clock = true;
1149 } else if (intel_sdvo->is_lvds) {
1150 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1151 intel_sdvo->sdvo_lvds_fixed_mode))
1152 return false;
1153
1154 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1155 mode,
1156 adjusted_mode);
1157 }
1158
1159 /* Make the CRTC code factor in the SDVO pixel multiplier. The
1160 * SDVO device will factor out the multiplier during mode_set.
1161 */
1162 pipe_config->pixel_multiplier =
1163 intel_sdvo_get_pixel_multiplier(adjusted_mode);
1164
1165 pipe_config->has_hdmi_sink = intel_sdvo->has_hdmi_monitor;
1166
1167 if (intel_sdvo->color_range_auto) {
1168 /* See CEA-861-E - 5.1 Default Encoding Parameters */
1169 /* FIXME: This bit is only valid when using TMDS encoding and 8
1170 * bit per color mode. */
1171 if (pipe_config->has_hdmi_sink &&
1172 drm_match_cea_mode(adjusted_mode) > 1)
1173 pipe_config->limited_color_range = true;
1174 } else {
1175 if (pipe_config->has_hdmi_sink &&
1176 intel_sdvo->color_range == HDMI_COLOR_RANGE_16_235)
1177 pipe_config->limited_color_range = true;
1178 }
1179
1180 /* Clock computation needs to happen after pixel multiplier. */
1181 if (intel_sdvo->is_tv)
1182 i9xx_adjust_sdvo_tv_clock(pipe_config);
1183
1184 return true;
1185 }
1186
1187 static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder)
1188 {
1189 struct drm_device *dev = intel_encoder->base.dev;
1190 struct drm_i915_private *dev_priv = dev->dev_private;
1191 struct intel_crtc *crtc = to_intel_crtc(intel_encoder->base.crtc);
1192 const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
1193 struct drm_display_mode *mode = &crtc->config->base.mode;
1194 struct intel_sdvo *intel_sdvo = to_sdvo(intel_encoder);
1195 u32 sdvox;
1196 struct intel_sdvo_in_out_map in_out;
1197 struct intel_sdvo_dtd input_dtd, output_dtd;
1198 int rate;
1199
1200 if (!mode)
1201 return;
1202
1203 /* First, set the input mapping for the first input to our controlled
1204 * output. This is only correct if we're a single-input device, in
1205 * which case the first input is the output from the appropriate SDVO
1206 * channel on the motherboard. In a two-input device, the first input
1207 * will be SDVOB and the second SDVOC.
1208 */
1209 in_out.in0 = intel_sdvo->attached_output;
1210 in_out.in1 = 0;
1211
1212 intel_sdvo_set_value(intel_sdvo,
1213 SDVO_CMD_SET_IN_OUT_MAP,
1214 &in_out, sizeof(in_out));
1215
1216 /* Set the output timings to the screen */
1217 if (!intel_sdvo_set_target_output(intel_sdvo,
1218 intel_sdvo->attached_output))
1219 return;
1220
1221 /* lvds has a special fixed output timing. */
1222 if (intel_sdvo->is_lvds)
1223 intel_sdvo_get_dtd_from_mode(&output_dtd,
1224 intel_sdvo->sdvo_lvds_fixed_mode);
1225 else
1226 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1227 if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1228 DRM_INFO("Setting output timings on %s failed\n",
1229 SDVO_NAME(intel_sdvo));
1230
1231 /* Set the input timing to the screen. Assume always input 0. */
1232 if (!intel_sdvo_set_target_input(intel_sdvo))
1233 return;
1234
1235 if (crtc->config->has_hdmi_sink) {
1236 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1237 intel_sdvo_set_colorimetry(intel_sdvo,
1238 SDVO_COLORIMETRY_RGB256);
1239 intel_sdvo_set_avi_infoframe(intel_sdvo, adjusted_mode);
1240 } else
1241 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1242
1243 if (intel_sdvo->is_tv &&
1244 !intel_sdvo_set_tv_format(intel_sdvo))
1245 return;
1246
1247 intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1248
1249 if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
1250 input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
1251 if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1252 DRM_INFO("Setting input timings on %s failed\n",
1253 SDVO_NAME(intel_sdvo));
1254
1255 switch (crtc->config->pixel_multiplier) {
1256 default:
1257 WARN(1, "unknown pixel multiplier specified\n");
1258 case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1259 case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1260 case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1261 }
1262 if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1263 return;
1264
1265 /* Set the SDVO control regs. */
1266 if (INTEL_INFO(dev)->gen >= 4) {
1267 /* The real mode polarity is set by the SDVO commands, using
1268 * struct intel_sdvo_dtd. */
1269 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1270 if (!HAS_PCH_SPLIT(dev) && crtc->config->limited_color_range)
1271 sdvox |= HDMI_COLOR_RANGE_16_235;
1272 if (INTEL_INFO(dev)->gen < 5)
1273 sdvox |= SDVO_BORDER_ENABLE;
1274 } else {
1275 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1276 switch (intel_sdvo->sdvo_reg) {
1277 case GEN3_SDVOB:
1278 sdvox &= SDVOB_PRESERVE_MASK;
1279 break;
1280 case GEN3_SDVOC:
1281 sdvox &= SDVOC_PRESERVE_MASK;
1282 break;
1283 }
1284 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1285 }
1286
1287 if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1288 sdvox |= SDVO_PIPE_SEL_CPT(crtc->pipe);
1289 else
1290 sdvox |= SDVO_PIPE_SEL(crtc->pipe);
1291
1292 if (intel_sdvo->has_hdmi_audio)
1293 sdvox |= SDVO_AUDIO_ENABLE;
1294
1295 if (INTEL_INFO(dev)->gen >= 4) {
1296 /* done in crtc_mode_set as the dpll_md reg must be written early */
1297 } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1298 /* done in crtc_mode_set as it lives inside the dpll register */
1299 } else {
1300 sdvox |= (crtc->config->pixel_multiplier - 1)
1301 << SDVO_PORT_MULTIPLY_SHIFT;
1302 }
1303
1304 if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1305 INTEL_INFO(dev)->gen < 5)
1306 sdvox |= SDVO_STALL_SELECT;
1307 intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1308 }
1309
1310 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1311 {
1312 struct intel_sdvo_connector *intel_sdvo_connector =
1313 to_intel_sdvo_connector(&connector->base);
1314 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
1315 u16 active_outputs = 0;
1316
1317 intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1318
1319 if (active_outputs & intel_sdvo_connector->output_flag)
1320 return true;
1321 else
1322 return false;
1323 }
1324
1325 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1326 enum pipe *pipe)
1327 {
1328 struct drm_device *dev = encoder->base.dev;
1329 struct drm_i915_private *dev_priv = dev->dev_private;
1330 struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1331 u16 active_outputs = 0;
1332 u32 tmp;
1333
1334 tmp = I915_READ(intel_sdvo->sdvo_reg);
1335 intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1336
1337 if (!(tmp & SDVO_ENABLE) && (active_outputs == 0))
1338 return false;
1339
1340 if (HAS_PCH_CPT(dev))
1341 *pipe = PORT_TO_PIPE_CPT(tmp);
1342 else
1343 *pipe = PORT_TO_PIPE(tmp);
1344
1345 return true;
1346 }
1347
1348 static void intel_sdvo_get_config(struct intel_encoder *encoder,
1349 struct intel_crtc_state *pipe_config)
1350 {
1351 struct drm_device *dev = encoder->base.dev;
1352 struct drm_i915_private *dev_priv = dev->dev_private;
1353 struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1354 struct intel_sdvo_dtd dtd;
1355 int encoder_pixel_multiplier = 0;
1356 int dotclock;
1357 u32 flags = 0, sdvox;
1358 u8 val;
1359 bool ret;
1360
1361 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1362
1363 ret = intel_sdvo_get_input_timing(intel_sdvo, &dtd);
1364 if (!ret) {
1365 /* Some sdvo encoders are not spec compliant and don't
1366 * implement the mandatory get_timings function. */
1367 DRM_DEBUG_DRIVER("failed to retrieve SDVO DTD\n");
1368 pipe_config->quirks |= PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS;
1369 } else {
1370 if (dtd.part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
1371 flags |= DRM_MODE_FLAG_PHSYNC;
1372 else
1373 flags |= DRM_MODE_FLAG_NHSYNC;
1374
1375 if (dtd.part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
1376 flags |= DRM_MODE_FLAG_PVSYNC;
1377 else
1378 flags |= DRM_MODE_FLAG_NVSYNC;
1379 }
1380
1381 pipe_config->base.adjusted_mode.flags |= flags;
1382
1383 /*
1384 * pixel multiplier readout is tricky: Only on i915g/gm it is stored in
1385 * the sdvo port register, on all other platforms it is part of the dpll
1386 * state. Since the general pipe state readout happens before the
1387 * encoder->get_config we so already have a valid pixel multplier on all
1388 * other platfroms.
1389 */
1390 if (IS_I915G(dev) || IS_I915GM(dev)) {
1391 pipe_config->pixel_multiplier =
1392 ((sdvox & SDVO_PORT_MULTIPLY_MASK)
1393 >> SDVO_PORT_MULTIPLY_SHIFT) + 1;
1394 }
1395
1396 dotclock = pipe_config->port_clock;
1397 if (pipe_config->pixel_multiplier)
1398 dotclock /= pipe_config->pixel_multiplier;
1399
1400 if (HAS_PCH_SPLIT(dev))
1401 ironlake_check_encoder_dotclock(pipe_config, dotclock);
1402
1403 pipe_config->base.adjusted_mode.crtc_clock = dotclock;
1404
1405 /* Cross check the port pixel multiplier with the sdvo encoder state. */
1406 if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_CLOCK_RATE_MULT,
1407 &val, 1)) {
1408 switch (val) {
1409 case SDVO_CLOCK_RATE_MULT_1X:
1410 encoder_pixel_multiplier = 1;
1411 break;
1412 case SDVO_CLOCK_RATE_MULT_2X:
1413 encoder_pixel_multiplier = 2;
1414 break;
1415 case SDVO_CLOCK_RATE_MULT_4X:
1416 encoder_pixel_multiplier = 4;
1417 break;
1418 }
1419 }
1420
1421 if (sdvox & HDMI_COLOR_RANGE_16_235)
1422 pipe_config->limited_color_range = true;
1423
1424 if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ENCODE,
1425 &val, 1)) {
1426 if (val == SDVO_ENCODE_HDMI)
1427 pipe_config->has_hdmi_sink = true;
1428 }
1429
1430 WARN(encoder_pixel_multiplier != pipe_config->pixel_multiplier,
1431 "SDVO pixel multiplier mismatch, port: %i, encoder: %i\n",
1432 pipe_config->pixel_multiplier, encoder_pixel_multiplier);
1433 }
1434
1435 static void intel_disable_sdvo(struct intel_encoder *encoder)
1436 {
1437 struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
1438 struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1439 struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
1440 u32 temp;
1441
1442 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1443 if (0)
1444 intel_sdvo_set_encoder_power_state(intel_sdvo,
1445 DRM_MODE_DPMS_OFF);
1446
1447 temp = I915_READ(intel_sdvo->sdvo_reg);
1448
1449 temp &= ~SDVO_ENABLE;
1450 intel_sdvo_write_sdvox(intel_sdvo, temp);
1451
1452 /*
1453 * HW workaround for IBX, we need to move the port
1454 * to transcoder A after disabling it to allow the
1455 * matching DP port to be enabled on transcoder A.
1456 */
1457 if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) {
1458 temp &= ~SDVO_PIPE_B_SELECT;
1459 temp |= SDVO_ENABLE;
1460 intel_sdvo_write_sdvox(intel_sdvo, temp);
1461
1462 temp &= ~SDVO_ENABLE;
1463 intel_sdvo_write_sdvox(intel_sdvo, temp);
1464 }
1465 }
1466
1467 static void pch_disable_sdvo(struct intel_encoder *encoder)
1468 {
1469 }
1470
1471 static void pch_post_disable_sdvo(struct intel_encoder *encoder)
1472 {
1473 intel_disable_sdvo(encoder);
1474 }
1475
1476 static void intel_enable_sdvo(struct intel_encoder *encoder)
1477 {
1478 struct drm_device *dev = encoder->base.dev;
1479 struct drm_i915_private *dev_priv = dev->dev_private;
1480 struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1481 struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1482 u32 temp;
1483 bool input1, input2;
1484 int i;
1485 bool success;
1486
1487 temp = I915_READ(intel_sdvo->sdvo_reg);
1488 temp |= SDVO_ENABLE;
1489 intel_sdvo_write_sdvox(intel_sdvo, temp);
1490
1491 for (i = 0; i < 2; i++)
1492 intel_wait_for_vblank(dev, intel_crtc->pipe);
1493
1494 success = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1495 /* Warn if the device reported failure to sync.
1496 * A lot of SDVO devices fail to notify of sync, but it's
1497 * a given it the status is a success, we succeeded.
1498 */
1499 if (success && !input1) {
1500 DRM_DEBUG_KMS("First %s output reported failure to "
1501 "sync\n", SDVO_NAME(intel_sdvo));
1502 }
1503
1504 if (0)
1505 intel_sdvo_set_encoder_power_state(intel_sdvo,
1506 DRM_MODE_DPMS_ON);
1507 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1508 }
1509
1510 static enum drm_mode_status
1511 intel_sdvo_mode_valid(struct drm_connector *connector,
1512 struct drm_display_mode *mode)
1513 {
1514 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1515
1516 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1517 return MODE_NO_DBLESCAN;
1518
1519 if (intel_sdvo->pixel_clock_min > mode->clock)
1520 return MODE_CLOCK_LOW;
1521
1522 if (intel_sdvo->pixel_clock_max < mode->clock)
1523 return MODE_CLOCK_HIGH;
1524
1525 if (intel_sdvo->is_lvds) {
1526 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1527 return MODE_PANEL;
1528
1529 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1530 return MODE_PANEL;
1531 }
1532
1533 return MODE_OK;
1534 }
1535
1536 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1537 {
1538 BUILD_BUG_ON(sizeof(*caps) != 8);
1539 if (!intel_sdvo_get_value(intel_sdvo,
1540 SDVO_CMD_GET_DEVICE_CAPS,
1541 caps, sizeof(*caps)))
1542 return false;
1543
1544 DRM_DEBUG_KMS("SDVO capabilities:\n"
1545 " vendor_id: %d\n"
1546 " device_id: %d\n"
1547 " device_rev_id: %d\n"
1548 " sdvo_version_major: %d\n"
1549 " sdvo_version_minor: %d\n"
1550 " sdvo_inputs_mask: %d\n"
1551 " smooth_scaling: %d\n"
1552 " sharp_scaling: %d\n"
1553 " up_scaling: %d\n"
1554 " down_scaling: %d\n"
1555 " stall_support: %d\n"
1556 " output_flags: %d\n",
1557 caps->vendor_id,
1558 caps->device_id,
1559 caps->device_rev_id,
1560 caps->sdvo_version_major,
1561 caps->sdvo_version_minor,
1562 caps->sdvo_inputs_mask,
1563 caps->smooth_scaling,
1564 caps->sharp_scaling,
1565 caps->up_scaling,
1566 caps->down_scaling,
1567 caps->stall_support,
1568 caps->output_flags);
1569
1570 return true;
1571 }
1572
1573 static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1574 {
1575 struct drm_device *dev = intel_sdvo->base.base.dev;
1576 uint16_t hotplug;
1577
1578 if (!I915_HAS_HOTPLUG(dev))
1579 return 0;
1580
1581 /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1582 * on the line. */
1583 if (IS_I945G(dev) || IS_I945GM(dev))
1584 return 0;
1585
1586 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1587 &hotplug, sizeof(hotplug)))
1588 return 0;
1589
1590 return hotplug;
1591 }
1592
1593 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1594 {
1595 struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1596
1597 intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1598 &intel_sdvo->hotplug_active, 2);
1599 }
1600
1601 static bool
1602 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1603 {
1604 /* Is there more than one type of output? */
1605 return hweight16(intel_sdvo->caps.output_flags) > 1;
1606 }
1607
1608 static struct edid *
1609 intel_sdvo_get_edid(struct drm_connector *connector)
1610 {
1611 struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1612 return drm_get_edid(connector, &sdvo->ddc);
1613 }
1614
1615 /* Mac mini hack -- use the same DDC as the analog connector */
1616 static struct edid *
1617 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1618 {
1619 struct drm_i915_private *dev_priv = connector->dev->dev_private;
1620
1621 return drm_get_edid(connector,
1622 intel_gmbus_get_adapter(dev_priv,
1623 dev_priv->vbt.crt_ddc_pin));
1624 }
1625
1626 static enum drm_connector_status
1627 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1628 {
1629 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1630 enum drm_connector_status status;
1631 struct edid *edid;
1632
1633 edid = intel_sdvo_get_edid(connector);
1634
1635 if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1636 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1637
1638 /*
1639 * Don't use the 1 as the argument of DDC bus switch to get
1640 * the EDID. It is used for SDVO SPD ROM.
1641 */
1642 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1643 intel_sdvo->ddc_bus = ddc;
1644 edid = intel_sdvo_get_edid(connector);
1645 if (edid)
1646 break;
1647 }
1648 /*
1649 * If we found the EDID on the other bus,
1650 * assume that is the correct DDC bus.
1651 */
1652 if (edid == NULL)
1653 intel_sdvo->ddc_bus = saved_ddc;
1654 }
1655
1656 /*
1657 * When there is no edid and no monitor is connected with VGA
1658 * port, try to use the CRT ddc to read the EDID for DVI-connector.
1659 */
1660 if (edid == NULL)
1661 edid = intel_sdvo_get_analog_edid(connector);
1662
1663 status = connector_status_unknown;
1664 if (edid != NULL) {
1665 /* DDC bus is shared, match EDID to connector type */
1666 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1667 status = connector_status_connected;
1668 if (intel_sdvo->is_hdmi) {
1669 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1670 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1671 intel_sdvo->rgb_quant_range_selectable =
1672 drm_rgb_quant_range_selectable(edid);
1673 }
1674 } else
1675 status = connector_status_disconnected;
1676 kfree(edid);
1677 }
1678
1679 if (status == connector_status_connected) {
1680 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1681 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1682 intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1683 }
1684
1685 return status;
1686 }
1687
1688 static bool
1689 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1690 struct edid *edid)
1691 {
1692 bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1693 bool connector_is_digital = !!IS_DIGITAL(sdvo);
1694
1695 DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1696 connector_is_digital, monitor_is_digital);
1697 return connector_is_digital == monitor_is_digital;
1698 }
1699
1700 static enum drm_connector_status
1701 intel_sdvo_detect(struct drm_connector *connector, bool force)
1702 {
1703 uint16_t response;
1704 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1705 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1706 enum drm_connector_status ret;
1707
1708 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1709 connector->base.id, connector->name);
1710
1711 if (!intel_sdvo_get_value(intel_sdvo,
1712 SDVO_CMD_GET_ATTACHED_DISPLAYS,
1713 &response, 2))
1714 return connector_status_unknown;
1715
1716 DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1717 response & 0xff, response >> 8,
1718 intel_sdvo_connector->output_flag);
1719
1720 if (response == 0)
1721 return connector_status_disconnected;
1722
1723 intel_sdvo->attached_output = response;
1724
1725 intel_sdvo->has_hdmi_monitor = false;
1726 intel_sdvo->has_hdmi_audio = false;
1727 intel_sdvo->rgb_quant_range_selectable = false;
1728
1729 if ((intel_sdvo_connector->output_flag & response) == 0)
1730 ret = connector_status_disconnected;
1731 else if (IS_TMDS(intel_sdvo_connector))
1732 ret = intel_sdvo_tmds_sink_detect(connector);
1733 else {
1734 struct edid *edid;
1735
1736 /* if we have an edid check it matches the connection */
1737 edid = intel_sdvo_get_edid(connector);
1738 if (edid == NULL)
1739 edid = intel_sdvo_get_analog_edid(connector);
1740 if (edid != NULL) {
1741 if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1742 edid))
1743 ret = connector_status_connected;
1744 else
1745 ret = connector_status_disconnected;
1746
1747 kfree(edid);
1748 } else
1749 ret = connector_status_connected;
1750 }
1751
1752 /* May update encoder flag for like clock for SDVO TV, etc.*/
1753 if (ret == connector_status_connected) {
1754 intel_sdvo->is_tv = false;
1755 intel_sdvo->is_lvds = false;
1756
1757 if (response & SDVO_TV_MASK)
1758 intel_sdvo->is_tv = true;
1759 if (response & SDVO_LVDS_MASK)
1760 intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1761 }
1762
1763 return ret;
1764 }
1765
1766 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1767 {
1768 struct edid *edid;
1769
1770 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1771 connector->base.id, connector->name);
1772
1773 /* set the bus switch and get the modes */
1774 edid = intel_sdvo_get_edid(connector);
1775
1776 /*
1777 * Mac mini hack. On this device, the DVI-I connector shares one DDC
1778 * link between analog and digital outputs. So, if the regular SDVO
1779 * DDC fails, check to see if the analog output is disconnected, in
1780 * which case we'll look there for the digital DDC data.
1781 */
1782 if (edid == NULL)
1783 edid = intel_sdvo_get_analog_edid(connector);
1784
1785 if (edid != NULL) {
1786 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1787 edid)) {
1788 drm_mode_connector_update_edid_property(connector, edid);
1789 drm_add_edid_modes(connector, edid);
1790 }
1791
1792 kfree(edid);
1793 }
1794 }
1795
1796 /*
1797 * Set of SDVO TV modes.
1798 * Note! This is in reply order (see loop in get_tv_modes).
1799 * XXX: all 60Hz refresh?
1800 */
1801 static const struct drm_display_mode sdvo_tv_modes[] = {
1802 { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1803 416, 0, 200, 201, 232, 233, 0,
1804 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1805 { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1806 416, 0, 240, 241, 272, 273, 0,
1807 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1808 { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1809 496, 0, 300, 301, 332, 333, 0,
1810 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1811 { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1812 736, 0, 350, 351, 382, 383, 0,
1813 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1814 { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1815 736, 0, 400, 401, 432, 433, 0,
1816 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1817 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1818 736, 0, 480, 481, 512, 513, 0,
1819 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1820 { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1821 800, 0, 480, 481, 512, 513, 0,
1822 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1823 { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1824 800, 0, 576, 577, 608, 609, 0,
1825 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1826 { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1827 816, 0, 350, 351, 382, 383, 0,
1828 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1829 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1830 816, 0, 400, 401, 432, 433, 0,
1831 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1832 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1833 816, 0, 480, 481, 512, 513, 0,
1834 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1835 { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1836 816, 0, 540, 541, 572, 573, 0,
1837 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1838 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1839 816, 0, 576, 577, 608, 609, 0,
1840 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1841 { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1842 864, 0, 576, 577, 608, 609, 0,
1843 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1844 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1845 896, 0, 600, 601, 632, 633, 0,
1846 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1847 { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1848 928, 0, 624, 625, 656, 657, 0,
1849 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1850 { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1851 1016, 0, 766, 767, 798, 799, 0,
1852 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1853 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1854 1120, 0, 768, 769, 800, 801, 0,
1855 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1856 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1857 1376, 0, 1024, 1025, 1056, 1057, 0,
1858 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1859 };
1860
1861 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1862 {
1863 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1864 struct intel_sdvo_sdtv_resolution_request tv_res;
1865 uint32_t reply = 0, format_map = 0;
1866 int i;
1867
1868 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1869 connector->base.id, connector->name);
1870
1871 /* Read the list of supported input resolutions for the selected TV
1872 * format.
1873 */
1874 format_map = 1 << intel_sdvo->tv_format_index;
1875 memcpy(&tv_res, &format_map,
1876 min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1877
1878 if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1879 return;
1880
1881 BUILD_BUG_ON(sizeof(tv_res) != 3);
1882 if (!intel_sdvo_write_cmd(intel_sdvo,
1883 SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1884 &tv_res, sizeof(tv_res)))
1885 return;
1886 if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1887 return;
1888
1889 for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1890 if (reply & (1 << i)) {
1891 struct drm_display_mode *nmode;
1892 nmode = drm_mode_duplicate(connector->dev,
1893 &sdvo_tv_modes[i]);
1894 if (nmode)
1895 drm_mode_probed_add(connector, nmode);
1896 }
1897 }
1898
1899 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1900 {
1901 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1902 struct drm_i915_private *dev_priv = connector->dev->dev_private;
1903 struct drm_display_mode *newmode;
1904
1905 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1906 connector->base.id, connector->name);
1907
1908 /*
1909 * Fetch modes from VBT. For SDVO prefer the VBT mode since some
1910 * SDVO->LVDS transcoders can't cope with the EDID mode.
1911 */
1912 if (dev_priv->vbt.sdvo_lvds_vbt_mode != NULL) {
1913 newmode = drm_mode_duplicate(connector->dev,
1914 dev_priv->vbt.sdvo_lvds_vbt_mode);
1915 if (newmode != NULL) {
1916 /* Guarantee the mode is preferred */
1917 newmode->type = (DRM_MODE_TYPE_PREFERRED |
1918 DRM_MODE_TYPE_DRIVER);
1919 drm_mode_probed_add(connector, newmode);
1920 }
1921 }
1922
1923 /*
1924 * Attempt to get the mode list from DDC.
1925 * Assume that the preferred modes are
1926 * arranged in priority order.
1927 */
1928 intel_ddc_get_modes(connector, &intel_sdvo->ddc);
1929
1930 list_for_each_entry(newmode, &connector->probed_modes, head) {
1931 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1932 intel_sdvo->sdvo_lvds_fixed_mode =
1933 drm_mode_duplicate(connector->dev, newmode);
1934
1935 intel_sdvo->is_lvds = true;
1936 break;
1937 }
1938 }
1939 }
1940
1941 static int intel_sdvo_get_modes(struct drm_connector *connector)
1942 {
1943 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1944
1945 if (IS_TV(intel_sdvo_connector))
1946 intel_sdvo_get_tv_modes(connector);
1947 else if (IS_LVDS(intel_sdvo_connector))
1948 intel_sdvo_get_lvds_modes(connector);
1949 else
1950 intel_sdvo_get_ddc_modes(connector);
1951
1952 return !list_empty(&connector->probed_modes);
1953 }
1954
1955 static void intel_sdvo_destroy(struct drm_connector *connector)
1956 {
1957 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1958
1959 drm_connector_cleanup(connector);
1960 kfree(intel_sdvo_connector);
1961 }
1962
1963 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1964 {
1965 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1966 struct edid *edid;
1967 bool has_audio = false;
1968
1969 if (!intel_sdvo->is_hdmi)
1970 return false;
1971
1972 edid = intel_sdvo_get_edid(connector);
1973 if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1974 has_audio = drm_detect_monitor_audio(edid);
1975 kfree(edid);
1976
1977 return has_audio;
1978 }
1979
1980 static int
1981 intel_sdvo_set_property(struct drm_connector *connector,
1982 struct drm_property *property,
1983 uint64_t val)
1984 {
1985 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1986 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1987 struct drm_i915_private *dev_priv = connector->dev->dev_private;
1988 uint16_t temp_value;
1989 uint8_t cmd;
1990 int ret;
1991
1992 ret = drm_object_property_set_value(&connector->base, property, val);
1993 if (ret)
1994 return ret;
1995
1996 if (property == dev_priv->force_audio_property) {
1997 int i = val;
1998 bool has_audio;
1999
2000 if (i == intel_sdvo_connector->force_audio)
2001 return 0;
2002
2003 intel_sdvo_connector->force_audio = i;
2004
2005 if (i == HDMI_AUDIO_AUTO)
2006 has_audio = intel_sdvo_detect_hdmi_audio(connector);
2007 else
2008 has_audio = (i == HDMI_AUDIO_ON);
2009
2010 if (has_audio == intel_sdvo->has_hdmi_audio)
2011 return 0;
2012
2013 intel_sdvo->has_hdmi_audio = has_audio;
2014 goto done;
2015 }
2016
2017 if (property == dev_priv->broadcast_rgb_property) {
2018 bool old_auto = intel_sdvo->color_range_auto;
2019 uint32_t old_range = intel_sdvo->color_range;
2020
2021 switch (val) {
2022 case INTEL_BROADCAST_RGB_AUTO:
2023 intel_sdvo->color_range_auto = true;
2024 break;
2025 case INTEL_BROADCAST_RGB_FULL:
2026 intel_sdvo->color_range_auto = false;
2027 intel_sdvo->color_range = 0;
2028 break;
2029 case INTEL_BROADCAST_RGB_LIMITED:
2030 intel_sdvo->color_range_auto = false;
2031 /* FIXME: this bit is only valid when using TMDS
2032 * encoding and 8 bit per color mode. */
2033 intel_sdvo->color_range = HDMI_COLOR_RANGE_16_235;
2034 break;
2035 default:
2036 return -EINVAL;
2037 }
2038
2039 if (old_auto == intel_sdvo->color_range_auto &&
2040 old_range == intel_sdvo->color_range)
2041 return 0;
2042
2043 goto done;
2044 }
2045
2046 #define CHECK_PROPERTY(name, NAME) \
2047 if (intel_sdvo_connector->name == property) { \
2048 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
2049 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
2050 cmd = SDVO_CMD_SET_##NAME; \
2051 intel_sdvo_connector->cur_##name = temp_value; \
2052 goto set_value; \
2053 }
2054
2055 if (property == intel_sdvo_connector->tv_format) {
2056 if (val >= TV_FORMAT_NUM)
2057 return -EINVAL;
2058
2059 if (intel_sdvo->tv_format_index ==
2060 intel_sdvo_connector->tv_format_supported[val])
2061 return 0;
2062
2063 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
2064 goto done;
2065 } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
2066 temp_value = val;
2067 if (intel_sdvo_connector->left == property) {
2068 drm_object_property_set_value(&connector->base,
2069 intel_sdvo_connector->right, val);
2070 if (intel_sdvo_connector->left_margin == temp_value)
2071 return 0;
2072
2073 intel_sdvo_connector->left_margin = temp_value;
2074 intel_sdvo_connector->right_margin = temp_value;
2075 temp_value = intel_sdvo_connector->max_hscan -
2076 intel_sdvo_connector->left_margin;
2077 cmd = SDVO_CMD_SET_OVERSCAN_H;
2078 goto set_value;
2079 } else if (intel_sdvo_connector->right == property) {
2080 drm_object_property_set_value(&connector->base,
2081 intel_sdvo_connector->left, val);
2082 if (intel_sdvo_connector->right_margin == temp_value)
2083 return 0;
2084
2085 intel_sdvo_connector->left_margin = temp_value;
2086 intel_sdvo_connector->right_margin = temp_value;
2087 temp_value = intel_sdvo_connector->max_hscan -
2088 intel_sdvo_connector->left_margin;
2089 cmd = SDVO_CMD_SET_OVERSCAN_H;
2090 goto set_value;
2091 } else if (intel_sdvo_connector->top == property) {
2092 drm_object_property_set_value(&connector->base,
2093 intel_sdvo_connector->bottom, val);
2094 if (intel_sdvo_connector->top_margin == temp_value)
2095 return 0;
2096
2097 intel_sdvo_connector->top_margin = temp_value;
2098 intel_sdvo_connector->bottom_margin = temp_value;
2099 temp_value = intel_sdvo_connector->max_vscan -
2100 intel_sdvo_connector->top_margin;
2101 cmd = SDVO_CMD_SET_OVERSCAN_V;
2102 goto set_value;
2103 } else if (intel_sdvo_connector->bottom == property) {
2104 drm_object_property_set_value(&connector->base,
2105 intel_sdvo_connector->top, val);
2106 if (intel_sdvo_connector->bottom_margin == temp_value)
2107 return 0;
2108
2109 intel_sdvo_connector->top_margin = temp_value;
2110 intel_sdvo_connector->bottom_margin = temp_value;
2111 temp_value = intel_sdvo_connector->max_vscan -
2112 intel_sdvo_connector->top_margin;
2113 cmd = SDVO_CMD_SET_OVERSCAN_V;
2114 goto set_value;
2115 }
2116 CHECK_PROPERTY(hpos, HPOS)
2117 CHECK_PROPERTY(vpos, VPOS)
2118 CHECK_PROPERTY(saturation, SATURATION)
2119 CHECK_PROPERTY(contrast, CONTRAST)
2120 CHECK_PROPERTY(hue, HUE)
2121 CHECK_PROPERTY(brightness, BRIGHTNESS)
2122 CHECK_PROPERTY(sharpness, SHARPNESS)
2123 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
2124 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
2125 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
2126 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
2127 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
2128 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
2129 }
2130
2131 return -EINVAL; /* unknown property */
2132
2133 set_value:
2134 if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
2135 return -EIO;
2136
2137
2138 done:
2139 if (intel_sdvo->base.base.crtc)
2140 intel_crtc_restore_mode(intel_sdvo->base.base.crtc);
2141
2142 return 0;
2143 #undef CHECK_PROPERTY
2144 }
2145
2146 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
2147 .dpms = drm_atomic_helper_connector_dpms,
2148 .detect = intel_sdvo_detect,
2149 .fill_modes = drm_helper_probe_single_connector_modes,
2150 .set_property = intel_sdvo_set_property,
2151 .atomic_get_property = intel_connector_atomic_get_property,
2152 .destroy = intel_sdvo_destroy,
2153 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
2154 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
2155 };
2156
2157 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
2158 .get_modes = intel_sdvo_get_modes,
2159 .mode_valid = intel_sdvo_mode_valid,
2160 .best_encoder = intel_best_encoder,
2161 };
2162
2163 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
2164 {
2165 struct intel_sdvo *intel_sdvo = to_sdvo(to_intel_encoder(encoder));
2166
2167 if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
2168 drm_mode_destroy(encoder->dev,
2169 intel_sdvo->sdvo_lvds_fixed_mode);
2170
2171 i2c_del_adapter(&intel_sdvo->ddc);
2172 intel_encoder_destroy(encoder);
2173 }
2174
2175 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
2176 .destroy = intel_sdvo_enc_destroy,
2177 };
2178
2179 static void
2180 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
2181 {
2182 uint16_t mask = 0;
2183 unsigned int num_bits;
2184
2185 /* Make a mask of outputs less than or equal to our own priority in the
2186 * list.
2187 */
2188 switch (sdvo->controlled_output) {
2189 case SDVO_OUTPUT_LVDS1:
2190 mask |= SDVO_OUTPUT_LVDS1;
2191 case SDVO_OUTPUT_LVDS0:
2192 mask |= SDVO_OUTPUT_LVDS0;
2193 case SDVO_OUTPUT_TMDS1:
2194 mask |= SDVO_OUTPUT_TMDS1;
2195 case SDVO_OUTPUT_TMDS0:
2196 mask |= SDVO_OUTPUT_TMDS0;
2197 case SDVO_OUTPUT_RGB1:
2198 mask |= SDVO_OUTPUT_RGB1;
2199 case SDVO_OUTPUT_RGB0:
2200 mask |= SDVO_OUTPUT_RGB0;
2201 break;
2202 }
2203
2204 /* Count bits to find what number we are in the priority list. */
2205 mask &= sdvo->caps.output_flags;
2206 num_bits = hweight16(mask);
2207 /* If more than 3 outputs, default to DDC bus 3 for now. */
2208 if (num_bits > 3)
2209 num_bits = 3;
2210
2211 /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2212 sdvo->ddc_bus = 1 << num_bits;
2213 }
2214
2215 /**
2216 * Choose the appropriate DDC bus for control bus switch command for this
2217 * SDVO output based on the controlled output.
2218 *
2219 * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2220 * outputs, then LVDS outputs.
2221 */
2222 static void
2223 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2224 struct intel_sdvo *sdvo)
2225 {
2226 struct sdvo_device_mapping *mapping;
2227
2228 if (sdvo->is_sdvob)
2229 mapping = &(dev_priv->sdvo_mappings[0]);
2230 else
2231 mapping = &(dev_priv->sdvo_mappings[1]);
2232
2233 if (mapping->initialized)
2234 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2235 else
2236 intel_sdvo_guess_ddc_bus(sdvo);
2237 }
2238
2239 static void
2240 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2241 struct intel_sdvo *sdvo)
2242 {
2243 struct sdvo_device_mapping *mapping;
2244 u8 pin;
2245
2246 if (sdvo->is_sdvob)
2247 mapping = &dev_priv->sdvo_mappings[0];
2248 else
2249 mapping = &dev_priv->sdvo_mappings[1];
2250
2251 if (mapping->initialized &&
2252 intel_gmbus_is_valid_pin(dev_priv, mapping->i2c_pin))
2253 pin = mapping->i2c_pin;
2254 else
2255 pin = GMBUS_PIN_DPB;
2256
2257 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2258
2259 /* With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
2260 * our code totally fails once we start using gmbus. Hence fall back to
2261 * bit banging for now. */
2262 intel_gmbus_force_bit(sdvo->i2c, true);
2263 }
2264
2265 /* undo any changes intel_sdvo_select_i2c_bus() did to sdvo->i2c */
2266 static void
2267 intel_sdvo_unselect_i2c_bus(struct intel_sdvo *sdvo)
2268 {
2269 intel_gmbus_force_bit(sdvo->i2c, false);
2270 }
2271
2272 static bool
2273 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2274 {
2275 return intel_sdvo_check_supp_encode(intel_sdvo);
2276 }
2277
2278 static u8
2279 intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
2280 {
2281 struct drm_i915_private *dev_priv = dev->dev_private;
2282 struct sdvo_device_mapping *my_mapping, *other_mapping;
2283
2284 if (sdvo->is_sdvob) {
2285 my_mapping = &dev_priv->sdvo_mappings[0];
2286 other_mapping = &dev_priv->sdvo_mappings[1];
2287 } else {
2288 my_mapping = &dev_priv->sdvo_mappings[1];
2289 other_mapping = &dev_priv->sdvo_mappings[0];
2290 }
2291
2292 /* If the BIOS described our SDVO device, take advantage of it. */
2293 if (my_mapping->slave_addr)
2294 return my_mapping->slave_addr;
2295
2296 /* If the BIOS only described a different SDVO device, use the
2297 * address that it isn't using.
2298 */
2299 if (other_mapping->slave_addr) {
2300 if (other_mapping->slave_addr == 0x70)
2301 return 0x72;
2302 else
2303 return 0x70;
2304 }
2305
2306 /* No SDVO device info is found for another DVO port,
2307 * so use mapping assumption we had before BIOS parsing.
2308 */
2309 if (sdvo->is_sdvob)
2310 return 0x70;
2311 else
2312 return 0x72;
2313 }
2314
2315 static void
2316 intel_sdvo_connector_unregister(struct intel_connector *intel_connector)
2317 {
2318 struct drm_connector *drm_connector;
2319 struct intel_sdvo *sdvo_encoder;
2320
2321 drm_connector = &intel_connector->base;
2322 sdvo_encoder = intel_attached_sdvo(&intel_connector->base);
2323
2324 sysfs_remove_link(&drm_connector->kdev->kobj,
2325 sdvo_encoder->ddc.dev.kobj.name);
2326 intel_connector_unregister(intel_connector);
2327 }
2328
2329 static int
2330 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2331 struct intel_sdvo *encoder)
2332 {
2333 struct drm_connector *drm_connector;
2334 int ret;
2335
2336 drm_connector = &connector->base.base;
2337 ret = drm_connector_init(encoder->base.base.dev,
2338 drm_connector,
2339 &intel_sdvo_connector_funcs,
2340 connector->base.base.connector_type);
2341 if (ret < 0)
2342 return ret;
2343
2344 drm_connector_helper_add(drm_connector,
2345 &intel_sdvo_connector_helper_funcs);
2346
2347 connector->base.base.interlace_allowed = 1;
2348 connector->base.base.doublescan_allowed = 0;
2349 connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2350 connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2351 connector->base.unregister = intel_sdvo_connector_unregister;
2352
2353 intel_connector_attach_encoder(&connector->base, &encoder->base);
2354 ret = drm_connector_register(drm_connector);
2355 if (ret < 0)
2356 goto err1;
2357
2358 ret = sysfs_create_link(&drm_connector->kdev->kobj,
2359 &encoder->ddc.dev.kobj,
2360 encoder->ddc.dev.kobj.name);
2361 if (ret < 0)
2362 goto err2;
2363
2364 return 0;
2365
2366 err2:
2367 drm_connector_unregister(drm_connector);
2368 err1:
2369 drm_connector_cleanup(drm_connector);
2370
2371 return ret;
2372 }
2373
2374 static void
2375 intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo,
2376 struct intel_sdvo_connector *connector)
2377 {
2378 struct drm_device *dev = connector->base.base.dev;
2379
2380 intel_attach_force_audio_property(&connector->base.base);
2381 if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev)) {
2382 intel_attach_broadcast_rgb_property(&connector->base.base);
2383 intel_sdvo->color_range_auto = true;
2384 }
2385 }
2386
2387 static struct intel_sdvo_connector *intel_sdvo_connector_alloc(void)
2388 {
2389 struct intel_sdvo_connector *sdvo_connector;
2390
2391 sdvo_connector = kzalloc(sizeof(*sdvo_connector), GFP_KERNEL);
2392 if (!sdvo_connector)
2393 return NULL;
2394
2395 if (intel_connector_init(&sdvo_connector->base) < 0) {
2396 kfree(sdvo_connector);
2397 return NULL;
2398 }
2399
2400 return sdvo_connector;
2401 }
2402
2403 static bool
2404 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2405 {
2406 struct drm_encoder *encoder = &intel_sdvo->base.base;
2407 struct drm_connector *connector;
2408 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2409 struct intel_connector *intel_connector;
2410 struct intel_sdvo_connector *intel_sdvo_connector;
2411
2412 DRM_DEBUG_KMS("initialising DVI device %d\n", device);
2413
2414 intel_sdvo_connector = intel_sdvo_connector_alloc();
2415 if (!intel_sdvo_connector)
2416 return false;
2417
2418 if (device == 0) {
2419 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2420 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2421 } else if (device == 1) {
2422 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2423 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2424 }
2425
2426 intel_connector = &intel_sdvo_connector->base;
2427 connector = &intel_connector->base;
2428 if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2429 intel_sdvo_connector->output_flag) {
2430 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2431 /* Some SDVO devices have one-shot hotplug interrupts.
2432 * Ensure that they get re-enabled when an interrupt happens.
2433 */
2434 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2435 intel_sdvo_enable_hotplug(intel_encoder);
2436 } else {
2437 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2438 }
2439 encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2440 connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2441
2442 if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2443 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2444 intel_sdvo->is_hdmi = true;
2445 }
2446
2447 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2448 kfree(intel_sdvo_connector);
2449 return false;
2450 }
2451
2452 if (intel_sdvo->is_hdmi)
2453 intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
2454
2455 return true;
2456 }
2457
2458 static bool
2459 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2460 {
2461 struct drm_encoder *encoder = &intel_sdvo->base.base;
2462 struct drm_connector *connector;
2463 struct intel_connector *intel_connector;
2464 struct intel_sdvo_connector *intel_sdvo_connector;
2465
2466 DRM_DEBUG_KMS("initialising TV type %d\n", type);
2467
2468 intel_sdvo_connector = intel_sdvo_connector_alloc();
2469 if (!intel_sdvo_connector)
2470 return false;
2471
2472 intel_connector = &intel_sdvo_connector->base;
2473 connector = &intel_connector->base;
2474 encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2475 connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2476
2477 intel_sdvo->controlled_output |= type;
2478 intel_sdvo_connector->output_flag = type;
2479
2480 intel_sdvo->is_tv = true;
2481
2482 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2483 kfree(intel_sdvo_connector);
2484 return false;
2485 }
2486
2487 if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2488 goto err;
2489
2490 if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2491 goto err;
2492
2493 return true;
2494
2495 err:
2496 drm_connector_unregister(connector);
2497 intel_sdvo_destroy(connector);
2498 return false;
2499 }
2500
2501 static bool
2502 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2503 {
2504 struct drm_encoder *encoder = &intel_sdvo->base.base;
2505 struct drm_connector *connector;
2506 struct intel_connector *intel_connector;
2507 struct intel_sdvo_connector *intel_sdvo_connector;
2508
2509 DRM_DEBUG_KMS("initialising analog device %d\n", device);
2510
2511 intel_sdvo_connector = intel_sdvo_connector_alloc();
2512 if (!intel_sdvo_connector)
2513 return false;
2514
2515 intel_connector = &intel_sdvo_connector->base;
2516 connector = &intel_connector->base;
2517 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2518 encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2519 connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2520
2521 if (device == 0) {
2522 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2523 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2524 } else if (device == 1) {
2525 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2526 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2527 }
2528
2529 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2530 kfree(intel_sdvo_connector);
2531 return false;
2532 }
2533
2534 return true;
2535 }
2536
2537 static bool
2538 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2539 {
2540 struct drm_encoder *encoder = &intel_sdvo->base.base;
2541 struct drm_connector *connector;
2542 struct intel_connector *intel_connector;
2543 struct intel_sdvo_connector *intel_sdvo_connector;
2544
2545 DRM_DEBUG_KMS("initialising LVDS device %d\n", device);
2546
2547 intel_sdvo_connector = intel_sdvo_connector_alloc();
2548 if (!intel_sdvo_connector)
2549 return false;
2550
2551 intel_connector = &intel_sdvo_connector->base;
2552 connector = &intel_connector->base;
2553 encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2554 connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2555
2556 if (device == 0) {
2557 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2558 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2559 } else if (device == 1) {
2560 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2561 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2562 }
2563
2564 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2565 kfree(intel_sdvo_connector);
2566 return false;
2567 }
2568
2569 if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2570 goto err;
2571
2572 return true;
2573
2574 err:
2575 drm_connector_unregister(connector);
2576 intel_sdvo_destroy(connector);
2577 return false;
2578 }
2579
2580 static bool
2581 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2582 {
2583 intel_sdvo->is_tv = false;
2584 intel_sdvo->is_lvds = false;
2585
2586 /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2587
2588 if (flags & SDVO_OUTPUT_TMDS0)
2589 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2590 return false;
2591
2592 if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2593 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2594 return false;
2595
2596 /* TV has no XXX1 function block */
2597 if (flags & SDVO_OUTPUT_SVID0)
2598 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2599 return false;
2600
2601 if (flags & SDVO_OUTPUT_CVBS0)
2602 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2603 return false;
2604
2605 if (flags & SDVO_OUTPUT_YPRPB0)
2606 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2607 return false;
2608
2609 if (flags & SDVO_OUTPUT_RGB0)
2610 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2611 return false;
2612
2613 if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2614 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2615 return false;
2616
2617 if (flags & SDVO_OUTPUT_LVDS0)
2618 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2619 return false;
2620
2621 if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2622 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2623 return false;
2624
2625 if ((flags & SDVO_OUTPUT_MASK) == 0) {
2626 unsigned char bytes[2];
2627
2628 intel_sdvo->controlled_output = 0;
2629 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2630 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2631 SDVO_NAME(intel_sdvo),
2632 bytes[0], bytes[1]);
2633 return false;
2634 }
2635 intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2636
2637 return true;
2638 }
2639
2640 static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
2641 {
2642 struct drm_device *dev = intel_sdvo->base.base.dev;
2643 struct drm_connector *connector, *tmp;
2644
2645 list_for_each_entry_safe(connector, tmp,
2646 &dev->mode_config.connector_list, head) {
2647 if (intel_attached_encoder(connector) == &intel_sdvo->base) {
2648 drm_connector_unregister(connector);
2649 intel_sdvo_destroy(connector);
2650 }
2651 }
2652 }
2653
2654 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2655 struct intel_sdvo_connector *intel_sdvo_connector,
2656 int type)
2657 {
2658 struct drm_device *dev = intel_sdvo->base.base.dev;
2659 struct intel_sdvo_tv_format format;
2660 uint32_t format_map, i;
2661
2662 if (!intel_sdvo_set_target_output(intel_sdvo, type))
2663 return false;
2664
2665 BUILD_BUG_ON(sizeof(format) != 6);
2666 if (!intel_sdvo_get_value(intel_sdvo,
2667 SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2668 &format, sizeof(format)))
2669 return false;
2670
2671 memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2672
2673 if (format_map == 0)
2674 return false;
2675
2676 intel_sdvo_connector->format_supported_num = 0;
2677 for (i = 0 ; i < TV_FORMAT_NUM; i++)
2678 if (format_map & (1 << i))
2679 intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2680
2681
2682 intel_sdvo_connector->tv_format =
2683 drm_property_create(dev, DRM_MODE_PROP_ENUM,
2684 "mode", intel_sdvo_connector->format_supported_num);
2685 if (!intel_sdvo_connector->tv_format)
2686 return false;
2687
2688 for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2689 drm_property_add_enum(
2690 intel_sdvo_connector->tv_format, i,
2691 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2692
2693 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2694 drm_object_attach_property(&intel_sdvo_connector->base.base.base,
2695 intel_sdvo_connector->tv_format, 0);
2696 return true;
2697
2698 }
2699
2700 #define ENHANCEMENT(name, NAME) do { \
2701 if (enhancements.name) { \
2702 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2703 !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2704 return false; \
2705 intel_sdvo_connector->max_##name = data_value[0]; \
2706 intel_sdvo_connector->cur_##name = response; \
2707 intel_sdvo_connector->name = \
2708 drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2709 if (!intel_sdvo_connector->name) return false; \
2710 drm_object_attach_property(&connector->base, \
2711 intel_sdvo_connector->name, \
2712 intel_sdvo_connector->cur_##name); \
2713 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2714 data_value[0], data_value[1], response); \
2715 } \
2716 } while (0)
2717
2718 static bool
2719 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2720 struct intel_sdvo_connector *intel_sdvo_connector,
2721 struct intel_sdvo_enhancements_reply enhancements)
2722 {
2723 struct drm_device *dev = intel_sdvo->base.base.dev;
2724 struct drm_connector *connector = &intel_sdvo_connector->base.base;
2725 uint16_t response, data_value[2];
2726
2727 /* when horizontal overscan is supported, Add the left/right property */
2728 if (enhancements.overscan_h) {
2729 if (!intel_sdvo_get_value(intel_sdvo,
2730 SDVO_CMD_GET_MAX_OVERSCAN_H,
2731 &data_value, 4))
2732 return false;
2733
2734 if (!intel_sdvo_get_value(intel_sdvo,
2735 SDVO_CMD_GET_OVERSCAN_H,
2736 &response, 2))
2737 return false;
2738
2739 intel_sdvo_connector->max_hscan = data_value[0];
2740 intel_sdvo_connector->left_margin = data_value[0] - response;
2741 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2742 intel_sdvo_connector->left =
2743 drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2744 if (!intel_sdvo_connector->left)
2745 return false;
2746
2747 drm_object_attach_property(&connector->base,
2748 intel_sdvo_connector->left,
2749 intel_sdvo_connector->left_margin);
2750
2751 intel_sdvo_connector->right =
2752 drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2753 if (!intel_sdvo_connector->right)
2754 return false;
2755
2756 drm_object_attach_property(&connector->base,
2757 intel_sdvo_connector->right,
2758 intel_sdvo_connector->right_margin);
2759 DRM_DEBUG_KMS("h_overscan: max %d, "
2760 "default %d, current %d\n",
2761 data_value[0], data_value[1], response);
2762 }
2763
2764 if (enhancements.overscan_v) {
2765 if (!intel_sdvo_get_value(intel_sdvo,
2766 SDVO_CMD_GET_MAX_OVERSCAN_V,
2767 &data_value, 4))
2768 return false;
2769
2770 if (!intel_sdvo_get_value(intel_sdvo,
2771 SDVO_CMD_GET_OVERSCAN_V,
2772 &response, 2))
2773 return false;
2774
2775 intel_sdvo_connector->max_vscan = data_value[0];
2776 intel_sdvo_connector->top_margin = data_value[0] - response;
2777 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2778 intel_sdvo_connector->top =
2779 drm_property_create_range(dev, 0,
2780 "top_margin", 0, data_value[0]);
2781 if (!intel_sdvo_connector->top)
2782 return false;
2783
2784 drm_object_attach_property(&connector->base,
2785 intel_sdvo_connector->top,
2786 intel_sdvo_connector->top_margin);
2787
2788 intel_sdvo_connector->bottom =
2789 drm_property_create_range(dev, 0,
2790 "bottom_margin", 0, data_value[0]);
2791 if (!intel_sdvo_connector->bottom)
2792 return false;
2793
2794 drm_object_attach_property(&connector->base,
2795 intel_sdvo_connector->bottom,
2796 intel_sdvo_connector->bottom_margin);
2797 DRM_DEBUG_KMS("v_overscan: max %d, "
2798 "default %d, current %d\n",
2799 data_value[0], data_value[1], response);
2800 }
2801
2802 ENHANCEMENT(hpos, HPOS);
2803 ENHANCEMENT(vpos, VPOS);
2804 ENHANCEMENT(saturation, SATURATION);
2805 ENHANCEMENT(contrast, CONTRAST);
2806 ENHANCEMENT(hue, HUE);
2807 ENHANCEMENT(sharpness, SHARPNESS);
2808 ENHANCEMENT(brightness, BRIGHTNESS);
2809 ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2810 ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2811 ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2812 ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2813 ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2814
2815 if (enhancements.dot_crawl) {
2816 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2817 return false;
2818
2819 intel_sdvo_connector->max_dot_crawl = 1;
2820 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2821 intel_sdvo_connector->dot_crawl =
2822 drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2823 if (!intel_sdvo_connector->dot_crawl)
2824 return false;
2825
2826 drm_object_attach_property(&connector->base,
2827 intel_sdvo_connector->dot_crawl,
2828 intel_sdvo_connector->cur_dot_crawl);
2829 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2830 }
2831
2832 return true;
2833 }
2834
2835 static bool
2836 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2837 struct intel_sdvo_connector *intel_sdvo_connector,
2838 struct intel_sdvo_enhancements_reply enhancements)
2839 {
2840 struct drm_device *dev = intel_sdvo->base.base.dev;
2841 struct drm_connector *connector = &intel_sdvo_connector->base.base;
2842 uint16_t response, data_value[2];
2843
2844 ENHANCEMENT(brightness, BRIGHTNESS);
2845
2846 return true;
2847 }
2848 #undef ENHANCEMENT
2849
2850 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2851 struct intel_sdvo_connector *intel_sdvo_connector)
2852 {
2853 union {
2854 struct intel_sdvo_enhancements_reply reply;
2855 uint16_t response;
2856 } enhancements;
2857
2858 BUILD_BUG_ON(sizeof(enhancements) != 2);
2859
2860 enhancements.response = 0;
2861 intel_sdvo_get_value(intel_sdvo,
2862 SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2863 &enhancements, sizeof(enhancements));
2864 if (enhancements.response == 0) {
2865 DRM_DEBUG_KMS("No enhancement is supported\n");
2866 return true;
2867 }
2868
2869 if (IS_TV(intel_sdvo_connector))
2870 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2871 else if (IS_LVDS(intel_sdvo_connector))
2872 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2873 else
2874 return true;
2875 }
2876
2877 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2878 struct i2c_msg *msgs,
2879 int num)
2880 {
2881 struct intel_sdvo *sdvo = adapter->algo_data;
2882
2883 if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2884 return -EIO;
2885
2886 return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2887 }
2888
2889 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2890 {
2891 struct intel_sdvo *sdvo = adapter->algo_data;
2892 return sdvo->i2c->algo->functionality(sdvo->i2c);
2893 }
2894
2895 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2896 .master_xfer = intel_sdvo_ddc_proxy_xfer,
2897 .functionality = intel_sdvo_ddc_proxy_func
2898 };
2899
2900 static bool
2901 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2902 struct drm_device *dev)
2903 {
2904 sdvo->ddc.owner = THIS_MODULE;
2905 sdvo->ddc.class = I2C_CLASS_DDC;
2906 snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2907 sdvo->ddc.dev.parent = &dev->pdev->dev;
2908 sdvo->ddc.algo_data = sdvo;
2909 sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2910
2911 return i2c_add_adapter(&sdvo->ddc) == 0;
2912 }
2913
2914 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
2915 {
2916 struct drm_i915_private *dev_priv = dev->dev_private;
2917 struct intel_encoder *intel_encoder;
2918 struct intel_sdvo *intel_sdvo;
2919 int i;
2920 intel_sdvo = kzalloc(sizeof(*intel_sdvo), GFP_KERNEL);
2921 if (!intel_sdvo)
2922 return false;
2923
2924 intel_sdvo->sdvo_reg = sdvo_reg;
2925 intel_sdvo->is_sdvob = is_sdvob;
2926 intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
2927 intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo);
2928 if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev))
2929 goto err_i2c_bus;
2930
2931 /* encoder type will be decided later */
2932 intel_encoder = &intel_sdvo->base;
2933 intel_encoder->type = INTEL_OUTPUT_SDVO;
2934 drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0);
2935
2936 /* Read the regs to test if we can talk to the device */
2937 for (i = 0; i < 0x40; i++) {
2938 u8 byte;
2939
2940 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2941 DRM_DEBUG_KMS("No SDVO device found on %s\n",
2942 SDVO_NAME(intel_sdvo));
2943 goto err;
2944 }
2945 }
2946
2947 intel_encoder->compute_config = intel_sdvo_compute_config;
2948 if (HAS_PCH_SPLIT(dev)) {
2949 intel_encoder->disable = pch_disable_sdvo;
2950 intel_encoder->post_disable = pch_post_disable_sdvo;
2951 } else {
2952 intel_encoder->disable = intel_disable_sdvo;
2953 }
2954 intel_encoder->pre_enable = intel_sdvo_pre_enable;
2955 intel_encoder->enable = intel_enable_sdvo;
2956 intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
2957 intel_encoder->get_config = intel_sdvo_get_config;
2958
2959 /* In default case sdvo lvds is false */
2960 if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2961 goto err;
2962
2963 if (intel_sdvo_output_setup(intel_sdvo,
2964 intel_sdvo->caps.output_flags) != true) {
2965 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
2966 SDVO_NAME(intel_sdvo));
2967 /* Output_setup can leave behind connectors! */
2968 goto err_output;
2969 }
2970
2971 /* Only enable the hotplug irq if we need it, to work around noisy
2972 * hotplug lines.
2973 */
2974 if (intel_sdvo->hotplug_active) {
2975 intel_encoder->hpd_pin =
2976 intel_sdvo->is_sdvob ? HPD_SDVO_B : HPD_SDVO_C;
2977 }
2978
2979 /*
2980 * Cloning SDVO with anything is often impossible, since the SDVO
2981 * encoder can request a special input timing mode. And even if that's
2982 * not the case we have evidence that cloning a plain unscaled mode with
2983 * VGA doesn't really work. Furthermore the cloning flags are way too
2984 * simplistic anyway to express such constraints, so just give up on
2985 * cloning for SDVO encoders.
2986 */
2987 intel_sdvo->base.cloneable = 0;
2988
2989 intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo);
2990
2991 /* Set the input timing to the screen. Assume always input 0. */
2992 if (!intel_sdvo_set_target_input(intel_sdvo))
2993 goto err_output;
2994
2995 if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2996 &intel_sdvo->pixel_clock_min,
2997 &intel_sdvo->pixel_clock_max))
2998 goto err_output;
2999
3000 DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
3001 "clock range %dMHz - %dMHz, "
3002 "input 1: %c, input 2: %c, "
3003 "output 1: %c, output 2: %c\n",
3004 SDVO_NAME(intel_sdvo),
3005 intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
3006 intel_sdvo->caps.device_rev_id,
3007 intel_sdvo->pixel_clock_min / 1000,
3008 intel_sdvo->pixel_clock_max / 1000,
3009 (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
3010 (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
3011 /* check currently supported outputs */
3012 intel_sdvo->caps.output_flags &
3013 (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
3014 intel_sdvo->caps.output_flags &
3015 (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
3016 return true;
3017
3018 err_output:
3019 intel_sdvo_output_cleanup(intel_sdvo);
3020
3021 err:
3022 drm_encoder_cleanup(&intel_encoder->base);
3023 i2c_del_adapter(&intel_sdvo->ddc);
3024 err_i2c_bus:
3025 intel_sdvo_unselect_i2c_bus(intel_sdvo);
3026 kfree(intel_sdvo);
3027
3028 return false;
3029 }
Linux kernel - Deliverables
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