1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <stdlib.h>
4 #include <tests/test.h>
5 #include <edid.h>
6 #include <assert.h>
7 #include <string.h>
8 #include <tests/lib/edid.h>
9
10 struct test_state {
11 int data_size;
12 void *data;
13 };
14
get_raw_edid_checksum(const unsigned char * x)15 static uint8_t get_raw_edid_checksum(const unsigned char *x)
16 {
17 unsigned char sum = 0;
18 int i;
19 for (i = 0; i < 127; ++i)
20 sum += x[i];
21
22 return 256 - sum;
23 }
24
edid_raw_calc_checksum(struct edid_raw * raw)25 static void edid_raw_calc_checksum(struct edid_raw *raw)
26 {
27 raw->checksum = get_raw_edid_checksum((const unsigned char *)raw);
28 }
29
test_decode_edid_no_edid(void ** state)30 static void test_decode_edid_no_edid(void **state)
31 {
32 assert_int_equal(EDID_ABSENT, decode_edid(NULL, 0, NULL));
33 }
34
test_decode_edid_invalid_header(void ** state)35 static void test_decode_edid_invalid_header(void **state)
36 {
37 struct edid_raw raw = {.header = EDID_HEADER_INVALID_RAW};
38 raw.checksum = get_raw_edid_checksum((const unsigned char *)&raw);
39
40 assert_int_equal(EDID_ABSENT, decode_edid((unsigned char *)&raw, sizeof(raw), NULL));
41 }
42
43 /* Frame is modified example of an LCD Desktop IT display
44 from VESA E-EDID Standard Release A2. */
setup_decode_edid_basic_frame(void ** state)45 static int setup_decode_edid_basic_frame(void **state)
46 {
47 struct edid_raw raw = {
48 EDID_RAW_DEFAULT_PARAMS,
49 .video_input_type =
50 EDID_ANALOG_VSI
51 | EDID_SIGNAL_LEVEL_0
52 | EDID_VIDEO_SETUP_BLANK_EQ_BLACK
53 | EDID_SEPARATE_SYNC_H_AND_V(1)
54 | EDID_COMPOSITE_SYNC_H(1)
55 | EDID_COMPOSITE_SYNC_ON_GREEN(1)
56 | EDID_SERRATION_VSYNC(1),
57 .horizontal_size = 43, /* [cm] */
58 .vertical_size = 32, /* [cm] */
59 .display_gamma = 120, /* 220% */
60 .supported_features =
61 EDID_STANDBY_MODE(0)
62 | EDID_SUSPEND_MODE(0)
63 | EDID_ACTIVE_OFF(1)
64 | EDID_COLOR_FORMAT_RGB444
65 | EDID_SRGB_SUPPORTED(0)
66 | EDID_PREFERRED_TIMING_EXTENDED_INFO
67 | EDID_DISPLAY_FREQUENCY_CONTINUOUS,
68 .established_supported_timings = {
69 [0] = EDID_ESTABLISHED_TIMINGS_1_720x400_70Hz
70 | EDID_ESTABLISHED_TIMINGS_1_720x400_88Hz
71 | EDID_ESTABLISHED_TIMINGS_1_640x480_60Hz
72 | EDID_ESTABLISHED_TIMINGS_1_640x480_67Hz
73 | EDID_ESTABLISHED_TIMINGS_1_640x480_72Hz
74 | EDID_ESTABLISHED_TIMINGS_1_640x480_75Hz
75 | EDID_ESTABLISHED_TIMINGS_1_800x600_56Hz
76 | EDID_ESTABLISHED_TIMINGS_1_800x600_60Hz,
77 [1] = EDID_ESTABLISHED_TIMINGS_2_800x600_72Hz
78 | EDID_ESTABLISHED_TIMINGS_2_800x600_75Hz
79 | EDID_ESTABLISHED_TIMINGS_2_832x624_75Hz
80 | EDID_ESTABLISHED_TIMINGS_2_1024x768_80HzI
81 | EDID_ESTABLISHED_TIMINGS_2_1024x768_60Hz
82 | EDID_ESTABLISHED_TIMINGS_2_1024x768_70Hz
83 | EDID_ESTABLISHED_TIMINGS_2_1024x768_75Hz
84 | EDID_ESTABLISHED_TIMINGS_2_1280x1024_75Hz,
85 },
86 .manufacturers_reserved_timing = EDID_MANUFACTURERS_TIMINGS_1152x870_75Hz,
87 .standard_timings_supported = {
88 [0] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
89 [1] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
90
91 [2] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
92 [3] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(75),
93
94 [4] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
95 [5] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(70),
96
97 [6] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
98 [7] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(65),
99
100 [8] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
101 [9] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(85),
102
103 [10] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
104 [11] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(60),
105
106 [12] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1024),
107 [13] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
108
109 [14] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(800),
110 [15] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
111 },
112 .descriptor_block_1 = {
113 [0] = EDID_PIXEL_CLOCK(162000000u) & 0xFF,
114 [1] = (EDID_PIXEL_CLOCK(162000000u) >> 8) & 0xFF,
115
116 /* Horizontal Addressable Video is 1600px,
117 Horizontal Blanking is 560px. */
118 [2] = 0x40,
119 [3] = 0x30,
120 [4] = 0x62,
121
122 /* Vertical Addressable Video is 1200 lines,
123 Vertical Blanking is 50 lines. */
124 [5] = 0xB0,
125 [6] = 0x32,
126 [7] = 0x40,
127
128 [8] = 64u, /* Horizontal Front Porch in pixels. */
129 [9] = 192u, /* Horizontal Pulse Sync Width in pixels. */
130 [10] = 0x13, /* Vertical Front Porch is 1 line. */
131 [11] = 0x00, /* Vertical Sync Pulse Width is 3 lines. */
132
133 /* Horizontal Addressable Image Size is 427mm,
134 Vertical Addressable Image Size is 320mm. */
135 [12] = 0xAB,
136 [13] = 0x40,
137 [14] = 0x11,
138
139 [15] = 0x00, /* Horizontal Border Size is 0px. */
140 [16] = 0x00, /* Vertical Border Size is 0px. */
141
142 /* Timing is Non-Interlaced Video,
143 Stereo Video is not supported,
144 Digital separate syncs are requires. */
145 [17] = 0x1E,
146 },
147 .descriptor_block_2 = {
148 /* Display Range Limits Block Tag */
149 [0] = 0,
150 [1] = 0,
151 [2] = 0,
152 [3] = 0xFD,
153
154 [4] = 0, /* Horizontal and Vertical Rate Offsets are zero. */
155 [5] = 50u, /* Minimum Vertical Freq is 50Hz. */
156 [6] = 90u, /* Maximum Vertical Freq is 90Hz. */
157
158 [7] = 30u, /* Minimum Horizontal Freq is 30kHz. */
159 [8] = 110u, /* Maximum Horizontal Freq is 110kHz. */
160 [9] = 23u, /* Maximum Pixel Clock Freq is 230MHz. */
161 [10] = 0x4, /* Begin CVT Support Info */
162 [11] = 0x11, /* Compatible with CVT Version 1.1 */
163 [12] = 0, /* Maximum Pixel Clock Freq remains at 230MHz. */
164 [13] = 200, /* Maximum Active Pixels per Line is 1600. */
165 [14] = 0x90, /* Supported aspect ratios: 4:3, 5:4. */
166
167 /* Preferred Aspect Ratio is 4:3, Standard CVT Blanking is supported. */
168 [15] = 0,
169 [16] = 0x50, /* H. & V. Stretch are supported and Shrinks are not. */
170 [17] = 60u, /* Preferred Refresh Rate is 60Hz. */
171 },
172 .descriptor_block_3 = {
173 /* Established Timings III Block Tag */
174 [0] = 0,
175 [1] = 0,
176 [2] = 0,
177 [3] = 0xF7,
178 [4] = 0,
179
180 [5] = 10u, /* VESA DMT Standard Version #10 */
181 /*
182 * 640x350@85Hz,
183 * 640x400@85Hz,
184 * 720x400@85Hz,
185 * 640x480@85Hz,
186 * 800x600@85Hz,
187 * 1024x768@85Hz,
188 * 1152x864@75Hz are supported.
189 */
190 [6] = 0x7F,
191
192 /*
193 * 1280x960@60Hz,
194 * 1280x960@85Hz,
195 * 1280x1024@60Hz,
196 * 1280x1024@85Hz are supported.
197 */
198 [7] = 0x0F,
199
200 /*
201 * 1400x1050@60Hz (Normal Blanking),
202 * 1400x1050@75Hz are supported.
203 */
204 [8] = 0x03,
205
206 /*
207 * 1400x1050@85Hz,
208 * 1600x1200@60Hz,
209 * 1600x1200@65Hz,
210 * 1600x1200@70Hz are supported.
211 */
212 [9] = 0x87,
213
214 /*
215 * 1600x1200@75Hz,
216 * 1600x1200@85Hz are supported.
217 */
218 [10] = 0xC0,
219
220 /* 1920 timings not supported. */
221 [11] = 0x0,
222
223 [12 ... 17] = 0,
224 },
225 .descriptor_block_4 = {
226 /* Display Product Name Block Tag */
227 [0] = 0,
228 [1] = 0,
229 [2] = 0,
230 [3] = 0xFC,
231 [4] = 0,
232
233 /* Product name */
234 [5] = 'A',
235 [6] = 'B',
236 [7] = 'C',
237 [8] = ' ',
238 [9] = 'L',
239 [10] = 'C',
240 [11] = 'D',
241 [12] = '2',
242 [13] = '1',
243 [14] = '\n',
244 [15] = ' ',
245 [16] = ' ',
246 [17] = ' ',
247 },
248 .extension_flag = 0x0, /* No extensions */
249 };
250
251 edid_raw_calc_checksum(&raw);
252
253 *state = malloc(sizeof(struct test_state));
254
255 struct test_state ts = {.data_size = sizeof(struct edid_raw),
256 .data = malloc(sizeof(struct edid_raw))};
257
258 memcpy(ts.data, &raw, sizeof(raw));
259 memcpy(*state, &ts, sizeof(ts));
260
261 return 0;
262 }
263
264 /* Test decoding of EDID frame without extensions. */
test_decode_edid_basic_frame(void ** state)265 static void test_decode_edid_basic_frame(void **state)
266 {
267 struct edid out;
268 struct test_state *ts = *state;
269
270 /* In real-life situations frames often are not 100% conformant,
271 but are at least correct when it comes to key data fields. */
272 assert_int_equal(EDID_CONFORMANT,
273 decode_edid((unsigned char *)ts->data, ts->data_size, &out));
274
275 assert_int_equal(32, out.framebuffer_bits_per_pixel);
276 assert_int_equal(0, out.panel_bits_per_color);
277 assert_int_equal(0, out.panel_bits_per_pixel);
278 assert_int_equal(0, out.link_clock);
279 assert_int_equal(1600, out.x_resolution);
280 assert_int_equal(1200, out.y_resolution);
281 assert_int_equal(6400, out.bytes_per_line);
282 assert_int_equal(0, out.hdmi_monitor_detected);
283 assert_int_equal(0, strnlen(out.ascii_string, ARRAY_SIZE(out.ascii_string)));
284 assert_string_equal(out.manufacturer_name, EDID_MANUFACTURER_NAME);
285
286 /* Mode */
287 assert_null(out.mode.name);
288 assert_int_equal(162000, out.mode.pixel_clock);
289 assert_int_equal(1, out.mode.lvds_dual_channel);
290 assert_int_equal(0, out.mode.refresh);
291 assert_int_equal(1600, out.mode.ha);
292 assert_int_equal(560, out.mode.hbl);
293 assert_int_equal(64, out.mode.hso);
294 assert_int_equal(192, out.mode.hspw);
295 assert_int_equal(0, out.mode.hborder);
296 assert_int_equal(1200, out.mode.va);
297 assert_int_equal(50, out.mode.vbl);
298 assert_int_equal(1, out.mode.vso);
299 assert_int_equal(0, out.mode.vborder);
300 assert_int_equal(43, out.mode.phsync);
301 assert_int_equal(43, out.mode.pvsync);
302 assert_int_equal(0, out.mode.x_mm);
303 assert_int_equal(0, out.mode.y_mm);
304
305 assert_int_equal(1, out.mode_is_supported[EDID_MODE_640x480_60Hz]);
306 assert_int_equal(0, out.mode_is_supported[EDID_MODE_720x480_60Hz]);
307 assert_int_equal(0, out.mode_is_supported[EDID_MODE_1280x720_60Hz]);
308 assert_int_equal(0, out.mode_is_supported[EDID_MODE_1920x1080_60Hz]);
309 }
310
311 /* Frame is modified example of base EDID frame with CEA861 extension
312 for DTV Display from VESA E-EDID Standard Release A2. */
setup_decode_edid_dtv_frame_with_extension(void ** state)313 static int setup_decode_edid_dtv_frame_with_extension(void **state)
314 {
315 struct edid_raw raw = {
316 EDID_RAW_DEFAULT_PARAMS,
317 .video_input_type =
318 EDID_DIGITAL_VSI
319 | EDID_INTERFACE_HDMI_A
320 | EDID_COLOR_BIT_DEPTH_8B,
321 .horizontal_size = 16, /* Aspect ratio 16:9 in landscape. */
322 .vertical_size = 0, /* Landscape flag */
323 .display_gamma = 120, /* 220% */
324 .supported_features =
325 EDID_STANDBY_MODE(0)
326 | EDID_SUSPEND_MODE(0)
327 | EDID_ACTIVE_OFF(0)
328 | EDID_COLOR_FORMAT_RGB444_YCRCB422_YCRCB422
329 | EDID_SRGB_SUPPORTED(1)
330 | EDID_PREFERRED_TIMING_EXTENDED_INFO
331 | EDID_DISPLAY_FREQUENCY_NON_CONTINUOUS,
332
333 .established_supported_timings = {
334 [0] = EDID_ESTABLISHED_TIMINGS_1_640x480_60Hz,
335 [1] = 0,
336 },
337 .manufacturers_reserved_timing = 0,
338 .standard_timings_supported = {
339 [0 ... 15] = 0,
340 },
341 .descriptor_block_1 = {
342 [0] = EDID_PIXEL_CLOCK(148500000u) & 0xFF,
343 [1] = (EDID_PIXEL_CLOCK(148500000u) >> 8) & 0xFF,
344
345 /* Horizontal Addressable Video is 1920px,
346 Horizontal Blanking is 280px. */
347 [2] = 0x80,
348 [3] = 0x18,
349 [4] = 0x71,
350
351 /* Vertical Addressable Video is 1080 lines,
352 Vertical Blanking is 45 lines. */
353 [5] = 0x38,
354 [6] = 0x2D,
355 [7] = 0x40,
356
357 [8] = 88u, /* Horizontal Front Porch in pixels. */
358 [9] = 44u, /* Horizontal Pulse Sync Width in pixels. */
359 [10] = 4u, /* Vertical Front Porch is 4 lines. */
360 [11] = 5u, /* Vertical Sync Pulse Width is 5 lines. */
361
362 /* Horizontal Addressable Image Size is 1039mm,
363 Vertical Addressable Image Size is 584mm. */
364 [12] = 0x0F,
365 [13] = 0x48,
366 [14] = 0x42,
367
368 [15] = 0x00, /* Horizontal Border Size is 0px. */
369 [16] = 0x00, /* Vertical Border Size is 0px. */
370
371 /* Timing is Non-Interlaced Video,
372 Stereo Video is not supported,
373 Digital separate and syncs are requires. */
374 [17] = 0x1E,
375 },
376 .descriptor_block_2 = {
377 [0] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
378 [1] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
379
380 /* Horizontal Addressable Video is 1920px,
381 Horizontal Blanking is 280px. */
382 [2] = 0x80,
383 [3] = 0x18,
384 [4] = 0x71,
385
386 /* Vertical Addressable Video is 540 lines,
387 Vertical Blanking is 22 lines. */
388 [5] = 0x1C,
389 [6] = 0x16,
390 [7] = 0x20,
391
392 [8] = 88u, /* Horizontal Front Porch in pixels. */
393 [9] = 44u, /* Horizontal Pulse Sync Width in pixels. */
394 [10] = 0x25, /* Vertical Front Porch is 2 lines. */
395 [11] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
396
397 /* Horizontal Addressable Image Size is 1039mm,
398 Vertical Addressable Image Size is 584mm. */
399 [12] = 0x0F,
400 [13] = 0x48,
401 [14] = 0x42,
402
403 [15] = 0x00, /* Horizontal Border Size is 0px. */
404 [16] = 0x00, /* Vertical Border Size is 0px. */
405
406 /* Timing is Interlaced Video,
407 Stereo Video is not supported,
408 Digital separate and syncs are requires. */
409 [17] = 0x9E,
410 },
411 .descriptor_block_3 = {
412 [0] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
413 [1] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
414
415 /* Horizontal Addressable Video is 1280px,
416 Horizontal Blanking is 370px. */
417 [2] = 0x00,
418 [3] = 0x72,
419 [4] = 0x51,
420
421 /* Vertical Addressable Video is 720 lines,
422 Vertical Blanking is 30 lines. */
423 [5] = 0xD0,
424 [6] = 0x1E,
425 [7] = 0x20,
426
427 [8] = 110u, /* Horizontal Front Porch in pixels. */
428 [9] = 40u, /* Horizontal Pulse Sync Width in pixels. */
429 [10] = 0x55u, /* Vertical Front Porch is 5 lines. */
430 [11] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
431
432 /* Horizontal Addressable Image Size is 1039mm,
433 Vertical Addressable Image Size is 584mm. */
434 [12] = 0x0F,
435 [13] = 0x48,
436 [14] = 0x42,
437
438 [15] = 0x00, /* Horizontal Border Size is 0px. */
439 [16] = 0x00, /* Vertical Border Size is 0px. */
440
441 /* Timing is Non-Interlaced Video,
442 Stereo Video is not supported,
443 Digital separate syncs are requires. */
444 [17] = 0x1E,
445 },
446 .descriptor_block_4 = {
447 /* Display Product Name Block Tag */
448 [0] = 0,
449 [1] = 0,
450 [2] = 0,
451 [3] = 0xFC,
452 [4] = 0,
453
454 /* Product name */
455 [5] = 'A',
456 [6] = 'B',
457 [7] = 'C',
458 [8] = ' ',
459 [9] = 'L',
460 [10] = 'C',
461 [11] = 'D',
462 [12] = '4',
463 [13] = '7',
464 [14] = 'w',
465 [15] = '\n',
466 [16] = ' ',
467 [17] = ' ',
468 },
469 .extension_flag = 0x0, /* No extensions */
470 };
471
472 edid_raw_calc_checksum(&raw);
473
474 unsigned char ext[128] = {
475 [0] = 0x02, /* CEA 861 Extension Block Tag Code */
476 [1] = 0x03, /* CEA 861 Block Version */
477
478 [2] = 0x18, /* Detail Timing Descriptors start 0x18 bytes from here. */
479
480 /* Underscan is not supported,
481 Basic Audio is supported,
482 YCbCr 4:4:4 & YCbCr 4:2:2 are supported,
483 Number of native formats: 2. */
484 [3] = 0x72,
485
486 /* Video Data Block Tag Code is 2,
487 Number of Short Video Descriptor Bytes is 7. */
488 [4] = 0x47,
489
490 /* 1920x1080p 59.94/60 Hz 16 : 9 AR (CEA Format #16)
491 is a supported Native Format. */
492 [5] = 0x90,
493
494 /* 1920x1080i 59.94/60 Hz 16 : 9 AR (CEA Format #5)
495 is a supported Native Format. */
496 [6] = 0x85,
497
498 /* 1280x720p 59.94/60 Hz 16 : 9 AR (CEA Format #4) is a supported format. */
499 [7] = 0x04,
500
501 /* 720x480p 59.94/60 Hz 16 : 9 AR (CEA Format #3) is a supported format. */
502 [8] = 0x03,
503
504 /* 720x480p 59.94/60 Hz 4 : 3 AR (CEA Format #2) is a supported format. */
505 [9] = 0x02,
506
507 /* 720x480i 59.94/60 Hz 16 : 9 AR (CEA Format #7) is a supported format. */
508 [10] = 0x07,
509
510 /* 720x480i 59.94/60 Hz 4 : 3 AR (CEA Format #6) is a supported format. */
511 [11] = 0x06,
512
513 /* Audio Data Block Tag Code is 1,
514 Number of Short Audio Descriptor Bytes is 3. */
515 [12] = 0x23,
516
517 /* Audio Format Tag Code is 1 --- LPCM is supported,
518 Maximum number of audio channels is 2. */
519 [13] = 0x09,
520
521 /* Supported Sampling Frequencies include: 48kHz; 44.1kHz & 32kHz. */
522 [14] = 0x07,
523
524 /* Supported Sampling Bit Rates include: 24 bit; 20 bit & 16 bit. */
525 [15] = 0x07,
526
527 /* Speaker Allocation Block Tag Code is 4,
528 Number of Speaker Allocation Descriptor Bytes is 3. */
529 [16] = 0x83,
530
531 /* Speaker Allocation is Front-Left & Front-Right. */
532 [17] = 0x01,
533
534 /* Reserved */
535 [18 ... 19] = 0,
536
537 /* Vendor Specific Data Block Tag Code is 3,
538 Number of Vendor Specific Data Bytes is 5. */
539 [20] = 0x65,
540
541 /* 24bit IEEE registration Identifier is 0x000C03. */
542 [21] = 0x03,
543 [22] = 0x0C,
544 [23] = 0x00,
545
546 /* Vendor Specific Data is 0x10000. */
547 [24] = 0x01,
548 [25] = 0x00,
549
550 /* Descriptor Block 5 [18 Bytes] */
551
552 [26] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
553 [27] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
554
555 /* Horizontal Addressable Video is 720px,
556 Horizontal Blanking is 138 px. */
557 [28] = 0xD0,
558 [29] = 0x8A,
559 [30] = 0x20,
560
561 /* Vertical Addressable Video is 480 lines,
562 Vertical Blanking is 45 lines. */
563 [31] = 0xE0,
564 [32] = 0x2D,
565 [33] = 0x10,
566
567 [34] = 16u, /* Horizontal Front Porch in pixels. */
568 [35] = 62u, /* Horizontal Sync Pulse Width in pixels. */
569 [36] = 0x96, /* Vertical Front Porch is 9 lines. */
570 [37] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
571
572 /* Displayed Image Aspect Ratio is 16:9 */
573 [38] = 16u,
574 [39] = 9u,
575 [40] = 0u,
576
577 /* Horizontal and Vertical Border Size is 0 px */
578 [41] = 0u,
579 [42] = 0u,
580
581 /* Timing is Interlaced Video,
582 Stereo Video is not supported,
583 Digital Separate Syncs are required. */
584 [43] = 0x18,
585
586 /* Descriptor Block 6 [18 Bytes] */
587
588 [44] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
589 [45] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
590
591 /* Horizontal Addressable Video is 720px,
592 Horizontal Blanking is 138 px. */
593 [46] = 0xD0,
594 [47] = 0x8A,
595 [48] = 0x20,
596
597 /* Vertical Addressable Video is 480 lines,
598 Vertical Blanking is 45 lines. */
599 [49] = 0xE0,
600 [50] = 0x2D,
601 [51] = 0x10,
602
603 [52] = 16u, /* Horizontal Front Porch in pixels. */
604 [53] = 62u, /* Horizontal Sync Pulse Width in pixels. */
605 [54] = 0x96, /* Vertical Front Porch is 9 lines. */
606 [55] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
607
608 /* Displayed Image Aspect Ratio is 4:3. */
609 [56] = 4u,
610 [57] = 3u,
611 [58] = 0u,
612
613 /* Horizontal and Vertical Border Size is 0px. */
614 [59] = 0u,
615 [60] = 0u,
616
617 /* Timing is Interlaced Video,
618 Stereo Video is not supported,
619 Digital Separate Syncs are required. */
620 [61] = 0x18,
621
622 /* Descriptor Block 7 [18 Bytes] */
623
624 [62] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
625 [63] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
626
627 /* Horizontal Addressable Video is 1440px,
628 Horizontal Blanking is 276 px. */
629 [64] = 0xA0,
630 [65] = 0x14,
631 [66] = 0x51,
632
633 /* Vertical Addressable Video is 240 lines,
634 Vertical Blanking is 23 lines. */
635 [67] = 0xF0,
636 [68] = 0x16,
637 [69] = 0x00,
638
639 [70] = 38u, /* Horizontal Front Porch in pixels. */
640 [71] = 124u, /* Horizontal Sync Pulse Width in pixels. */
641 [72] = 0x43, /* Vertical Front Porch is 9 lines. */
642 [73] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
643
644 /* Displayed Image Aspect Ratio is 16:9 */
645 [74] = 16u,
646 [75] = 9u,
647 [76] = 0u,
648
649 /* Horizontal and Vertical Border Size is 0px. */
650 [77] = 0u,
651 [78] = 0u,
652
653 /* Timing is Interlaced Video,
654 Stereo Video is not supported,
655 Digital Separate Syncs are required. */
656 [79] = 0x98,
657
658 /* Descriptor Block 8 [18 Bytes] */
659
660 [80] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
661 [81] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
662
663 /* Horizontal Addressable Video is 1440px,
664 Horizontal Blanking is 276 px. */
665 [82] = 0xA0,
666 [83] = 0x14,
667 [84] = 0x51,
668
669 /* Vertical Addressable Video is 240 lines,
670 Vertical Blanking is 23 lines. */
671 [85] = 0xF0,
672 [86] = 0x16,
673 [87] = 0x00,
674
675 [88] = 38u, /* Horizontal Front Porch in pixels. */
676 [89] = 124u, /* Horizontal Sync Pulse Width in pixels. */
677 [90] = 0x43, /* Vertical Front Porch is 9 lines. */
678 [91] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
679
680 /* Displayed Image Aspect Ratio is 4:3. */
681 [92] = 4u,
682 [93] = 3u,
683 [94] = 0u,
684
685 /* Horizontal and Vertical Border Size is 0px. */
686 [95] = 0u,
687 [96] = 0u,
688
689 /* Timing is Interlaced Video,
690 Stereo Video is not supported,
691 Digital Separate Syncs are required. */
692 [97] = 0x98,
693
694 [99 ... 126] = 0};
695
696 ext[127] = get_raw_edid_checksum(ext);
697
698 *state = malloc(sizeof(struct test_state));
699
700 struct test_state ts = {.data_size = sizeof(raw) + sizeof(ext),
701 .data = malloc(sizeof(raw) + sizeof(ext))};
702
703 memcpy(ts.data, &raw, sizeof(raw));
704 memcpy(ts.data + sizeof(raw), &ext[0], sizeof(ext));
705
706 memcpy(*state, &ts, sizeof(ts));
707
708 return 0;
709 }
710
711 /* Test decoding of EDID frame with one extension. */
test_decode_edid_dtv_frame_with_extension(void ** state)712 static void test_decode_edid_dtv_frame_with_extension(void **state)
713 {
714 struct edid out;
715 struct test_state *ts = *state;
716
717 /* In real-life situations frames often are not 100% conformant,
718 but are at least correct when it comes to key data fields. */
719 assert_int_equal(EDID_CONFORMANT,
720 decode_edid((unsigned char *)ts->data, ts->data_size, &out));
721
722 assert_int_equal(32, out.framebuffer_bits_per_pixel);
723 assert_int_equal(8, out.panel_bits_per_color);
724 assert_int_equal(24, out.panel_bits_per_pixel);
725 assert_int_equal(0, out.link_clock);
726 assert_int_equal(1920, out.x_resolution);
727 assert_int_equal(1080, out.y_resolution);
728 assert_int_equal(7680, out.bytes_per_line);
729 assert_int_equal(1, out.hdmi_monitor_detected);
730 assert_int_equal(0, strnlen(out.ascii_string, ARRAY_SIZE(out.ascii_string)));
731 assert_string_equal(out.manufacturer_name, EDID_MANUFACTURER_NAME);
732
733 /* Mode */
734 assert_null(out.mode.name);
735 assert_int_equal(148500, out.mode.pixel_clock);
736 assert_int_equal(1, out.mode.lvds_dual_channel);
737 assert_int_equal(0, out.mode.refresh);
738 assert_int_equal(1920, out.mode.ha);
739 assert_int_equal(280, out.mode.hbl);
740 assert_int_equal(88, out.mode.hso);
741 assert_int_equal(44, out.mode.hspw);
742 assert_int_equal(0, out.mode.hborder);
743 assert_int_equal(1080, out.mode.va);
744 assert_int_equal(45, out.mode.vbl);
745 assert_int_equal(16, out.mode.vso);
746 assert_int_equal(0, out.mode.vborder);
747 assert_int_equal(43, out.mode.phsync);
748 assert_int_equal(43, out.mode.pvsync);
749 assert_int_equal(0, out.mode.x_mm);
750 assert_int_equal(0, out.mode.y_mm);
751
752 assert_int_equal(1, out.mode_is_supported[EDID_MODE_640x480_60Hz]);
753 assert_int_equal(0, out.mode_is_supported[EDID_MODE_720x480_60Hz]);
754 assert_int_equal(0, out.mode_is_supported[EDID_MODE_1280x720_60Hz]);
755 assert_int_equal(0, out.mode_is_supported[EDID_MODE_1920x1080_60Hz]);
756 }
757
758
759 /* Test decoding of EDID frame with one extension. Tested frame is modified
760 example of base EDID frame with CEA861 extension for IT/DTV Display from
761 VESA E-EDID Standard Release A2. */
setup_decode_edid_it_dtv_frame_with_extension(void ** state)762 static int setup_decode_edid_it_dtv_frame_with_extension(void **state)
763 {
764 struct edid_raw raw = {
765 EDID_RAW_DEFAULT_PARAMS,
766 .video_input_type =
767 EDID_DIGITAL_VSI
768 | EDID_INTERFACE_HDMI_A
769 | EDID_COLOR_BIT_DEPTH_8B,
770 .horizontal_size = 121, /* Aspect ratio 16:9 in landscape */
771 .vertical_size = 68, /* Landscape flag */
772 .display_gamma = 120, /* 220% */
773 .supported_features =
774 EDID_STANDBY_MODE(0)
775 | EDID_SUSPEND_MODE(0)
776 | EDID_ACTIVE_OFF(0)
777 | EDID_COLOR_FORMAT_RGB444_YCRCB422_YCRCB422
778 | EDID_SRGB_SUPPORTED(1)
779 | EDID_PREFERRED_TIMING_EXTENDED_INFO
780 | EDID_DISPLAY_FREQUENCY_NON_CONTINUOUS,
781 .established_supported_timings = {
782 [0] = EDID_ESTABLISHED_TIMINGS_1_800x600_60Hz
783 | EDID_ESTABLISHED_TIMINGS_1_800x600_56Hz
784 | EDID_ESTABLISHED_TIMINGS_1_640x480_75Hz
785 | EDID_ESTABLISHED_TIMINGS_1_640x480_72Hz
786 | EDID_ESTABLISHED_TIMINGS_1_640x480_67Hz
787 | EDID_ESTABLISHED_TIMINGS_1_640x480_60Hz
788 | EDID_ESTABLISHED_TIMINGS_1_720x400_88Hz
789 | EDID_ESTABLISHED_TIMINGS_1_720x400_70Hz,
790 [1] = EDID_ESTABLISHED_TIMINGS_2_1280x1024_75Hz
791 | EDID_ESTABLISHED_TIMINGS_2_1024x768_75Hz
792 | EDID_ESTABLISHED_TIMINGS_2_1024x768_70Hz
793 | EDID_ESTABLISHED_TIMINGS_2_1024x768_60Hz
794 | EDID_ESTABLISHED_TIMINGS_2_832x624_75Hz
795 | EDID_ESTABLISHED_TIMINGS_2_800x600_75Hz
796 | EDID_ESTABLISHED_TIMINGS_2_800x600_72Hz,
797 },
798 .manufacturers_reserved_timing = EDID_MANUFACTURERS_TIMINGS_1152x870_75Hz,
799 .standard_timings_supported = {
800 [0] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
801 [1] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(85),
802
803 [2] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
804 [3] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(60),
805
806 [4] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
807 [5] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
808
809 [6] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
810 [7] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(60),
811
812 [8] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1024),
813 [9] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
814
815 [10] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(848),
816 [11] = EDID_ASPECT_RATIO_16_9 | EDID_FIELD_REFRESH_RATE(60),
817
818 [12] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(800),
819 [13] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(60),
820
821 [14] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(640),
822 [15] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(60),
823 },
824 .descriptor_block_1 = {
825 [0] = EDID_PIXEL_CLOCK(85500000u) & 0xFF,
826 [1] = (EDID_PIXEL_CLOCK(85500000u) >> 8) & 0xFF,
827
828 /* Horizontal Addressable Video is 1360px,
829 Horizontal Blanking is 432px. */
830 [2] = 0x50,
831 [3] = 0xB0,
832 [4] = 0x51,
833
834 /* Vertical Addressable Video is 768 lines,
835 Vertical Blanking is 27 lines. */
836 [5] = 0x00,
837 [6] = 0x1B,
838 [7] = 0x30,
839
840 [8] = 64u, /* Horizontal Front Porch in pixels. */
841 [9] = 112u, /* Horizontal Pulse Sync Width in pixels. */
842 [10] = 0x36, /* Vertical Front Porch is 3 lines. */
843 [11] = 0u, /* Vertical Sync Pulse Width is 6 lines. */
844
845 /* Horizontal Addressable Image Size is 1214mm,
846 Vertical Addressable Image Size is 683mm. */
847 [12] = 0xBE,
848 [13] = 0xAB,
849 [14] = 0x42,
850
851 [15] = 0x00, /* Horizontal border size is 0px. */
852 [16] = 0x00, /* Vertical Border Size is 0px. */
853
854 /* Timing is Non-Interlaced Video,
855 Stereo Video is not supported,
856 Digital separate and syncs are requires. */
857 [17] = 0x1E,
858 },
859 .descriptor_block_2 = {
860 [0] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
861 [1] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
862
863 /* Horizontal Addressable Video is 1280px,
864 Horizontal Blanking is 370px. */
865 [2] = 0x00,
866 [3] = 0x72,
867 [4] = 0x51,
868
869 /* Vertical Addressable Video is 720 lines,
870 Vertical Blanking is 30 lines. */
871 [5] = 0xD0,
872 [6] = 0x1E,
873 [7] = 0x20,
874
875 [8] = 110u, /* Horizontal Front Porch in pixels. */
876 [9] = 40u, /* Horizontal Pulse Sync Width in pixels. */
877 [10] = 0x55, /* Vertical Front Porch is 5 lines. */
878 [11] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
879
880 /* Horizontal Addressable Image Size is 1214mm,
881 Vertical Addressable Image Size is 683mm. */
882 [12] = 0xBE,
883 [13] = 0xAB,
884 [14] = 0x42,
885
886 [15] = 0x00, /* Horizontal border size is 0px. */
887 [16] = 0x00, /* Vertical Border Size is 0px. */
888
889 /* Timing is Non-Interlaced Video,
890 Stereo Video is not supported,
891 Digital separate and syncs are required. */
892 [17] = 0x1E,
893 },
894 .descriptor_block_3 = {
895 /* Established timings III Block Tag */
896 [0 ... 2] = 0u,
897 [3] = 0xF7,
898 [4] = 0u,
899
900 /* VESA DMT Standard Version #10 */
901 [5] = 10u,
902
903 /*
904 * 640x350@85Hz,
905 * 640x400@85Hz,
906 * 720x400@85Hz,
907 * 640x480@85Hz,
908 * 800x600@85Hz,
909 * 1024x768@85Hz,
910 * 1152x864@75Hz are supported.
911 */
912 [6] = 0x7F,
913
914 /*
915 * 1280x960@60Hz,
916 * 1280x960@85Hz,
917 * 1280x1024@60Hz,
918 * 1280x1024@85Hz
919 */
920 [7] = 0x0F,
921
922 /*
923 * 1400x1050@60Hz (Normal Blanking),
924 * 1400x1050@75Hz are supported.
925 */
926 [8] = 0x03,
927
928 /*
929 * 1400x1050@85Hz,
930 * 1600x1200@60Hz,
931 * 1600x1200@65Hz,
932 * 1600x1200@70Hz are supported.
933 */
934 [9] = 0x87,
935
936 /*
937 * 1600x1200@75Hz,
938 * 1600x1200@85Hz are supported.
939 */
940 [10] = 0xC0,
941
942 /* 1920 PC Timings are not supported. */
943 [11] = 0u,
944
945 /* Reserved */
946 [12 ... 17] = 0,
947 },
948 .descriptor_block_4 = {
949 /* Display Product Name Block Tag */
950 [0] = 0,
951 [1] = 0,
952 [2] = 0,
953 [3] = 0xFC,
954 [4] = 0,
955
956 /* Product name */
957 [5] = 'A',
958 [6] = 'B',
959 [7] = 'C',
960 [8] = ' ',
961 [9] = 'P',
962 [10] = 'L',
963 [11] = 'A',
964 [12] = '5',
965 [13] = '5',
966 [14] = '\n',
967 [15] = ' ',
968 [16] = ' ',
969 [17] = ' ',
970 },
971 .extension_flag = 0x0, /* No extensions */
972 };
973
974 edid_raw_calc_checksum(&raw);
975
976 unsigned char ext[128] = {
977 [0] = 0x02, /* CEA 861 Extension Block Tag Code */
978 [1] = 0x03, /* CEA 861 Block Version */
979 [2] = 0x17, /* Detail Timing Descriptors start 0x17 bytesfrom here */
980
981 /* Underscan is supported,
982 Basic Audio is supported,
983 YCbCr 4:4:4 & YCbCr 4:2:2 are supported,
984 Number of native formats: 0. */
985 [3] = 0xF0,
986
987 /* Video Data Block Tag Code is 2.
988 Number of Short Video Descriptor Bytes is 6. */
989 [4] = 0x46,
990
991 /* 1920x1080i 59.94/60 Hz 16 : 9 AR (CEA Format #5) is a supported format. */
992 [5] = 0x05,
993
994 /* 1280x720p 59.94/60 Hz 16 : 9 AR (CEA Format #4) is a supported format. */
995 [6] = 0x04,
996
997 /* 720x480p 59.94/60 Hz 16 : 9 AR (CEA Format #3) is a supported format. */
998 [7] = 0x03,
999
1000 /* 720x480p 59.94/60 Hz 4 : 3 AR (CEA Format #2) is a supported format. */
1001 [8] = 0x02,
1002
1003 /* 720x480i 59.94/60 Hz 16 : 9 AR (CEA Format #7) is a supported format. */
1004 [9] = 0x07,
1005
1006 /* 720x480i 59.94/60 Hz 4 : 3 AR (CEA Format #6) is a supported format. */
1007 [10] = 0x06,
1008
1009 /* Audio Data Block Tag Code is 1,
1010 Number of Short Audio Descriptor Bytes is 3. */
1011 [11] = 0x23,
1012
1013 /* Audio Format Tag Code is 1 --- LPCM is supported,
1014 Maximum number of audio channels is 2. */
1015 [12] = 0x09,
1016
1017 /* Supported Sampling Frequencies include: 48kHz; 44.1kHz & 32kHz. */
1018 [13] = 0x07,
1019
1020 /* Supported Sampling Bit Rates include: 24 bit; 20 bit & 16 bit. */
1021 [14] = 0x07,
1022
1023 /* Speaker Allocation Block Tag Code is 4,
1024 Number of Speaker Allocation Descriptor Bytes is 3. */
1025 [15] = 0x83,
1026
1027 /* Speaker Allocation is Front-Left & Front-Right */
1028 [16] = 0x01,
1029
1030 /* Reserved */
1031 [17 ... 18] = 0,
1032
1033 /* Vendor Specific Data Block Tag Code is 3,
1034 Number of Vendor Specific Data Bytes is 5. */
1035 [19] = 0x65,
1036
1037 /* 24bit IEEE registration Identifier is 0x000C03. */
1038 [20] = 0x03,
1039 [21] = 0x0C,
1040 [22] = 0x00,
1041
1042 /* Vendor Specific Data is 0x10000. */
1043 [23] = 0x01,
1044 [24] = 0x00,
1045
1046 /* Descriptor Block 5 [18 Bytes] */
1047
1048 [25] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
1049 [26] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
1050
1051 /* Horizontal Addressable Video is 1920px,
1052 Horizontal Blanking is 280px. */
1053 [27] = 0x80,
1054 [28] = 0x18,
1055 [29] = 0x71,
1056
1057 /* Vertical Addressable Video is 540 lines,
1058 Vertical Blanking is 22 lines. */
1059 [30] = 0x1C,
1060 [31] = 0x16,
1061 [32] = 0x20,
1062
1063 [33] = 88u, /* Horizontal Front Porch in pixels. */
1064 [34] = 44u, /* Horizontal Sync Pulse Width in pixels. */
1065 [35] = 0x25, /* Vertical Front Porch is 2 lines. */
1066 [36] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
1067
1068 /* Image size: 1039mm x 584mm */
1069 [37] = 0x0F,
1070 [38] = 0x48,
1071 [39] = 0x42,
1072
1073 /* Horizontal and Vertical Border Size is 0px. */
1074 [40] = 0u,
1075 [41] = 0u,
1076
1077 /* Timing is Interlaced Video,
1078 Stereo Video is not supported,
1079 Digital Separate Syncs are required. */
1080 [42] = 0x9E,
1081
1082 /* Descriptor Block 6 [18 Bytes] */
1083
1084 [43] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
1085 [44] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
1086
1087 /* Horizontal Addressable Video is 1280px,
1088 Horizontal Blanking is 370 px. */
1089 [45] = 0x00,
1090 [46] = 0x72,
1091 [47] = 0x51,
1092
1093 /* Vertical Addressable Video is 720 lines,
1094 Vertical Blanking is 30 lines. */
1095 [48] = 0xD0,
1096 [49] = 0x1E,
1097 [50] = 0x20,
1098
1099 [51] = 110u, /* Horizontal Front Porch in pixels. */
1100 [52] = 40u, /* Horizontal Sync Pulse Width in pixels. */
1101 [53] = 0x55, /* Vertical Front Porch is 5 lines. */
1102 [54] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
1103
1104 /* Image size: 1039mm x 584mm */
1105 [55] = 0x0F,
1106 [56] = 0x48,
1107 [57] = 0x42,
1108
1109 /* Horizontal and Vertical Border Size is 0px. */
1110 [58] = 0u,
1111 [59] = 0u,
1112
1113 /* Timing is Non-Interlaced Video,
1114 Stereo Video is not supported,
1115 Digital Separate Syncs are required. */
1116 [60] = 0x1E,
1117
1118 /* Descriptor Block 7 [18 Bytes] */
1119
1120 [61] = EDID_PIXEL_CLOCK(27000000u) & 0xFF,
1121 [62] = (EDID_PIXEL_CLOCK(27000000u) >> 8) & 0xFF,
1122
1123 /* Horizontal Addressable Video is 1440px,
1124 Horizontal Blanking is 276 px. */
1125 [63] = 0xA0,
1126 [64] = 0x14,
1127 [65] = 0x51,
1128
1129 /* Vertical Addressable Video is 240 lines,
1130 Vertical Blanking is 23 lines. */
1131 [66] = 0xF0,
1132 [67] = 0x16,
1133 [68] = 0x00,
1134
1135 [69] = 38u, /* Horizontal Front Porch in pixels. */
1136 [70] = 124u, /* Horizontal Sync Pulse Width in pixels. */
1137 [71] = 0x43, /* Vertical Front Porch is 4 lines. */
1138 [72] = 0x00, /* Vertical Sync Pulse Width is 3 lines. */
1139
1140 /* Image size: 1039mm x 584mm */
1141 [73] = 0x0F,
1142 [74] = 0x48,
1143 [75] = 0x42,
1144
1145 /* Horizontal and Vertical Border Size is 0px. */
1146 [76] = 0u,
1147 [77] = 0u,
1148
1149 /* Timing is Interlaced Video,
1150 Stereo Video is not supported,
1151 Digital Separate Syncs are required. */
1152 [78] = 0x18,
1153
1154 /* Descriptor Block 8 [18 Bytes] */
1155
1156 [79] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
1157 [80] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
1158
1159 /* Horizontal Addressable Video is 1440px,
1160 Horizontal Blanking is 276 px. */
1161 [81] = 0xA0,
1162 [82] = 0x14,
1163 [83] = 0x51,
1164
1165 /* Vertical Addressable Video is 240 lines,
1166 Vertical Blanking is 23 lines. */
1167 [84] = 0xF0,
1168 [85] = 0x16,
1169 [86] = 0x00,
1170
1171 [87] = 38u, /* Horizontal Front Porch in pixels. */
1172 [88] = 124u, /* Horizontal Sync Pulse Width in pixels. */
1173 [89] = 0x43, /* Vertical Front Porch is 4 lines. */
1174 [90] = 0x00, /* Vertical Sync Pulse Width is 3 lines. */
1175
1176 /* Image size: 1039mm x 584mm */
1177 [91] = 0x0F,
1178 [92] = 0x48,
1179 [93] = 0x42,
1180
1181 /* Horizontal and Vertical Border Size is 0px. */
1182 [94] = 0u,
1183 [95] = 0u,
1184
1185 /* Timing is Interlaced Video,
1186 Stereo Video is not supported,
1187 Digital Separate Syncs are required. */
1188 [96] = 0x98,
1189
1190 [97 ... 126] = 0,
1191 };
1192
1193 ext[127] = get_raw_edid_checksum(ext);
1194
1195 *state = malloc(sizeof(struct test_state));
1196
1197 struct test_state ts = {.data_size = sizeof(raw) + sizeof(ext),
1198 .data = malloc(sizeof(raw) + sizeof(ext))};
1199
1200 memcpy(ts.data, &raw, sizeof(raw));
1201 memcpy(ts.data + sizeof(raw), &ext[0], sizeof(ext));
1202
1203 memcpy(*state, &ts, sizeof(ts));
1204
1205 return 0;
1206 }
1207
test_decode_edid_it_dtv_frame_with_extension(void ** state)1208 static void test_decode_edid_it_dtv_frame_with_extension(void **state)
1209 {
1210 struct edid out;
1211 struct test_state *ts = *state;
1212
1213 /* In real-life situations frames often are not 100% conformant,
1214 but are at least correct when it comes to key data fields. */
1215 assert_int_equal(EDID_CONFORMANT,
1216 decode_edid((unsigned char *)ts->data, ts->data_size, &out));
1217
1218 assert_int_equal(32, out.framebuffer_bits_per_pixel);
1219 assert_int_equal(8, out.panel_bits_per_color);
1220 assert_int_equal(24, out.panel_bits_per_pixel);
1221 assert_int_equal(0, out.link_clock);
1222 assert_int_equal(1360, out.x_resolution);
1223 assert_int_equal(768, out.y_resolution);
1224 assert_int_equal(5440, out.bytes_per_line);
1225 assert_int_equal(1, out.hdmi_monitor_detected);
1226 assert_int_equal(0, strnlen(out.ascii_string, ARRAY_SIZE(out.ascii_string)));
1227 assert_string_equal(out.manufacturer_name, EDID_MANUFACTURER_NAME);
1228
1229 /* Mode */
1230 assert_null(out.mode.name);
1231 assert_int_equal(85500, out.mode.pixel_clock);
1232 assert_int_equal(0, out.mode.lvds_dual_channel);
1233 assert_int_equal(0, out.mode.refresh);
1234 assert_int_equal(1360, out.mode.ha);
1235 assert_int_equal(432, out.mode.hbl);
1236 assert_int_equal(64, out.mode.hso);
1237 assert_int_equal(112, out.mode.hspw);
1238 assert_int_equal(0, out.mode.hborder);
1239 assert_int_equal(768, out.mode.va);
1240 assert_int_equal(27, out.mode.vbl);
1241 assert_int_equal(3, out.mode.vso);
1242 assert_int_equal(0, out.mode.vborder);
1243 assert_int_equal(43, out.mode.phsync);
1244 assert_int_equal(43, out.mode.pvsync);
1245 assert_int_equal(0, out.mode.x_mm);
1246 assert_int_equal(0, out.mode.y_mm);
1247
1248 assert_int_equal(1, out.mode_is_supported[EDID_MODE_640x480_60Hz]);
1249 assert_int_equal(0, out.mode_is_supported[EDID_MODE_720x480_60Hz]);
1250 assert_int_equal(0, out.mode_is_supported[EDID_MODE_1280x720_60Hz]);
1251 assert_int_equal(0, out.mode_is_supported[EDID_MODE_1920x1080_60Hz]);
1252 }
1253
teardown_edid_test(void ** state)1254 static int teardown_edid_test(void **state)
1255 {
1256 struct test_state *ts;
1257
1258 if (*state == NULL)
1259 return 0;
1260
1261 ts = (struct test_state *)*state;
1262
1263 free(ts->data);
1264 free(ts);
1265
1266 return 0;
1267 }
1268
test_edid_set_framebuffer_bits_per_pixel(void ** state)1269 static void test_edid_set_framebuffer_bits_per_pixel(void **state)
1270 {
1271 struct edid out;
1272 struct test_state *ts = *state;
1273
1274 decode_edid((unsigned char *)ts->data, ts->data_size, &out);
1275
1276 edid_set_framebuffer_bits_per_pixel(&out, 16, 2);
1277
1278 assert_int_equal(16, out.framebuffer_bits_per_pixel);
1279 assert_int_equal(out.mode.ha * 2, out.bytes_per_line);
1280 assert_int_equal(out.bytes_per_line / (16 / 8), out.x_resolution);
1281 assert_int_equal(out.mode.va, out.y_resolution);
1282
1283 edid_set_framebuffer_bits_per_pixel(&out, 24, 4);
1284
1285 assert_int_equal(24, out.framebuffer_bits_per_pixel);
1286 assert_int_equal(out.mode.ha * 3, out.bytes_per_line);
1287 assert_int_equal(out.bytes_per_line / (24 / 8), out.x_resolution);
1288 assert_int_equal(out.mode.va, out.y_resolution);
1289
1290 edid_set_framebuffer_bits_per_pixel(&out, 32, 4);
1291
1292 assert_int_equal(32, out.framebuffer_bits_per_pixel);
1293 assert_int_equal(out.mode.ha * 4, out.bytes_per_line);
1294 assert_int_equal(out.bytes_per_line / (32 / 8), out.x_resolution);
1295 assert_int_equal(out.mode.va, out.y_resolution);
1296 }
1297
main(void)1298 int main(void)
1299 {
1300 const struct CMUnitTest tests[] = {
1301 cmocka_unit_test(test_decode_edid_no_edid),
1302 cmocka_unit_test(test_decode_edid_invalid_header),
1303 cmocka_unit_test_setup_teardown(test_decode_edid_basic_frame,
1304 setup_decode_edid_basic_frame,
1305 teardown_edid_test),
1306 cmocka_unit_test_setup_teardown(test_decode_edid_dtv_frame_with_extension,
1307 setup_decode_edid_dtv_frame_with_extension,
1308 teardown_edid_test),
1309 cmocka_unit_test_setup_teardown(test_decode_edid_it_dtv_frame_with_extension,
1310 setup_decode_edid_it_dtv_frame_with_extension,
1311 teardown_edid_test),
1312 cmocka_unit_test_setup_teardown(test_edid_set_framebuffer_bits_per_pixel,
1313 setup_decode_edid_basic_frame,
1314 teardown_edid_test),
1315 };
1316
1317 return cb_run_group_tests(tests, NULL, NULL);
1318 }
1319
1320