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ec049cb29dcc7fd9ba3f7e8fc21a7bf086a2891c
system76-coreboot/tests/lib/edid-test.c
Jakub Czapiga c08b6a7037 tests: Fix tests code and comments style 
This patch applies clang-format settings to most of tests files. Some
files were fixed "by-hand" to exclude some lines, which whould be less
readable after automatic style fixing.
Moreover, some comments (mostly in tests/lib/edid-test.c) were adjusted
to match coreboot coding style guidelines.

Change-Id: I69f25a7b6d8265800c731754e2fbb2255f482134
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60970
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
2022-01-14 14:29:29 +00:00

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/* SPDX-License-Identifier: GPL-2.0-only */
#include <stdlib.h>
#include <tests/test.h>
#include <edid.h>
#include <assert.h>
#include <string.h>
#include <tests/lib/edid.h>
struct test_state {
int data_size;
void *data;
};
static uint8_t get_raw_edid_checksum(const unsigned char *x)
{
unsigned char sum = 0;
int i;
for (i = 0; i < 127; ++i)
sum += x[i];
return 256 - sum;
}
static void edid_raw_calc_checksum(struct edid_raw *raw)
{
raw->checksum = get_raw_edid_checksum((const unsigned char *)raw);
}
static void test_decode_edid_no_edid(void **state)
{
assert_int_equal(EDID_ABSENT, decode_edid(NULL, 0, NULL));
}
static void test_decode_edid_invalid_header(void **state)
{
struct edid_raw raw = {.header = EDID_HEADER_INVALID_RAW};
raw.checksum = get_raw_edid_checksum((const unsigned char *)&raw);
assert_int_equal(EDID_ABSENT, decode_edid((unsigned char *)&raw, sizeof(raw), NULL));
}
/* Frame is modified example of an LCD Desktop IT display
from VESA E-EDID Standard Release A2. */
static int setup_decode_edid_basic_frame(void **state)
{
struct edid_raw raw = {
EDID_RAW_DEFAULT_PARAMS,
.video_input_type =
EDID_ANALOG_VSI
| EDID_SIGNAL_LEVEL_0
| EDID_VIDEO_SETUP_BLANK_EQ_BLACK
| EDID_SEPARATE_SYNC_H_AND_V(1)
| EDID_COMPOSITE_SYNC_H(1)
| EDID_COMPOSITE_SYNC_ON_GREEN(1)
| EDID_SERRATION_VSYNC(1),
.horizontal_size = 43, /* [cm] */
.vertical_size = 32, /* [cm] */
.display_gamma = 120, /* 220% */
.supported_features =
EDID_STANDBY_MODE(0)
| EDID_SUSPEND_MODE(0)
| EDID_ACTIVE_OFF(1)
| EDID_COLOR_FORMAT_RGB444
| EDID_SRGB_SUPPORTED(0)
| EDID_PREFERRED_TIMING_EXTENDED_INFO
| EDID_DISPLAY_FREQUENCY_CONTINUOUS,
.established_supported_timings = {
[0] = EDID_ESTABLISHED_TIMINGS_1_720x400_70Hz
| EDID_ESTABLISHED_TIMINGS_1_720x400_88Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_60Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_67Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_72Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_75Hz
| EDID_ESTABLISHED_TIMINGS_1_800x600_56Hz
| EDID_ESTABLISHED_TIMINGS_1_800x600_60Hz,
[1] = EDID_ESTABLISHED_TIMINGS_2_800x600_72Hz
| EDID_ESTABLISHED_TIMINGS_2_800x600_75Hz
| EDID_ESTABLISHED_TIMINGS_2_832x624_75Hz
| EDID_ESTABLISHED_TIMINGS_2_1024x768_80HzI
| EDID_ESTABLISHED_TIMINGS_2_1024x768_60Hz
| EDID_ESTABLISHED_TIMINGS_2_1024x768_70Hz
| EDID_ESTABLISHED_TIMINGS_2_1024x768_75Hz
| EDID_ESTABLISHED_TIMINGS_2_1280x1024_75Hz,
},
.manufacturers_reserved_timing = EDID_MANUFACTURERS_TIMINGS_1152x870_75Hz,
.standard_timings_supported = {
[0] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
[1] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
[2] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
[3] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(75),
[4] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
[5] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(70),
[6] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1600),
[7] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(65),
[8] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
[9] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(85),
[10] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
[11] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(60),
[12] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1024),
[13] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
[14] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(800),
[15] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
},
.descriptor_block_1 = {
[0] = EDID_PIXEL_CLOCK(162000000u) & 0xFF,
[1] = (EDID_PIXEL_CLOCK(162000000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1600px,
Horizontal Blanking is 560px. */
[2] = 0x40,
[3] = 0x30,
[4] = 0x62,
/* Vertical Addressable Video is 1200 lines,
Vertical Blanking is 50 lines. */
[5] = 0xB0,
[6] = 0x32,
[7] = 0x40,
[8] = 64u, /* Horizontal Front Porch in pixels. */
[9] = 192u, /* Horizontal Pulse Sync Width in pixels. */
[10] = 0x13, /* Vertical Front Porch is 1 line. */
[11] = 0x00, /* Vertical Sync Pulse Width is 3 lines. */
/* Horizontal Addressable Image Size is 427mm,
Vertical Addressable Image Size is 320mm. */
[12] = 0xAB,
[13] = 0x40,
[14] = 0x11,
[15] = 0x00, /* Horizontal Border Size is 0px. */
[16] = 0x00, /* Vertical Border Size is 0px. */
/* Timing is Non-Interlaced Video,
Stereo Video is not supported,
Digital separate syncs are requires. */
[17] = 0x1E,
},
.descriptor_block_2 = {
/* Display Range Limits Block Tag */
[0] = 0,
[1] = 0,
[2] = 0,
[3] = 0xFD,
[4] = 0, /* Horizontal and Vertical Rate Offsets are zero. */
[5] = 50u, /* Minimum Vertical Freq is 50Hz. */
[6] = 90u, /* Maximum Vertical Freq is 90Hz. */
[7] = 30u, /* Minimum Horizontal Freq is 30kHz. */
[8] = 110u, /* Maximum Horizontal Freq is 110kHz. */
[9] = 23u, /* Maximum Pixel Clock Freq is 230MHz. */
[10] = 0x4, /* Begin CVT Support Info */
[11] = 0x11, /* Compatible with CVT Version 1.1 */
[12] = 0, /* Maximum Pixel Clock Freq remains at 230MHz. */
[13] = 200, /* Maximum Active Pixels per Line is 1600. */
[14] = 0x90, /* Supported aspect ratios: 4:3, 5:4. */
/* Preferred Aspect Ratio is 4:3, Standard CVT Blanking is supported. */
[15] = 0,
[16] = 0x50, /* H. & V. Stretch are supported and Shrinks are not. */
[17] = 60u, /* Preferred Refresh Rate is 60Hz. */
},
.descriptor_block_3 = {
/* Established Timings III Block Tag */
[0] = 0,
[1] = 0,
[2] = 0,
[3] = 0xF7,
[4] = 0,
[5] = 10u, /* VESA DMT Standard Version #10 */
/*
* 640x350@85Hz,
* 640x400@85Hz,
* 720x400@85Hz,
* 640x480@85Hz,
* 800x600@85Hz,
* 1024x768@85Hz,
* 1152x864@75Hz are supported.
*/
[6] = 0x7F,
/*
* 1280x960@60Hz,
* 1280x960@85Hz,
* 1280x1024@60Hz,
* 1280x1024@85Hz are supported.
*/
[7] = 0x0F,
/*
* 1400x1050@60Hz (Normal Blanking),
* 1400x1050@75Hz are supported.
*/
[8] = 0x03,
/*
* 1400x1050@85Hz,
* 1600x1200@60Hz,
* 1600x1200@65Hz,
* 1600x1200@70Hz are supported.
*/
[9] = 0x87,
/*
* 1600x1200@75Hz,
* 1600x1200@85Hz are supported.
*/
[10] = 0xC0,
/* 1920 timings not supported. */
[11] = 0x0,
[12 ... 17] = 0,
},
.descriptor_block_4 = {
/* Display Product Name Block Tag */
[0] = 0,
[1] = 0,
[2] = 0,
[3] = 0xFC,
[4] = 0,
/* Product name */
[5] = 'A',
[6] = 'B',
[7] = 'C',
[8] = ' ',
[9] = 'L',
[10] = 'C',
[11] = 'D',
[12] = '2',
[13] = '1',
[14] = '\n',
[15] = ' ',
[16] = ' ',
[17] = ' ',
},
.extension_flag = 0x0, /* No extensions */
};
edid_raw_calc_checksum(&raw);
*state = malloc(sizeof(struct test_state));
struct test_state ts = {.data_size = sizeof(struct edid_raw),
.data = malloc(sizeof(struct edid_raw))};
memcpy(ts.data, &raw, sizeof(raw));
memcpy(*state, &ts, sizeof(ts));
return 0;
}
/* Test decoding of EDID frame without extensions. */
static void test_decode_edid_basic_frame(void **state)
{
struct edid out;
struct test_state *ts = *state;
/* In real-life situations frames often are not 100% conformant,
but are at least correct when it comes to key data fields. */
assert_int_equal(EDID_CONFORMANT,
decode_edid((unsigned char *)ts->data, ts->data_size, &out));
assert_int_equal(32, out.framebuffer_bits_per_pixel);
assert_int_equal(0, out.panel_bits_per_color);
assert_int_equal(0, out.panel_bits_per_pixel);
assert_int_equal(0, out.link_clock);
assert_int_equal(1600, out.x_resolution);
assert_int_equal(1200, out.y_resolution);
assert_int_equal(6400, out.bytes_per_line);
assert_int_equal(0, out.hdmi_monitor_detected);
assert_int_equal(0, strnlen(out.ascii_string, ARRAY_SIZE(out.ascii_string)));
assert_string_equal(out.manufacturer_name, EDID_MANUFACTURER_NAME);
/* Mode */
assert_null(out.mode.name);
assert_int_equal(162000, out.mode.pixel_clock);
assert_int_equal(1, out.mode.lvds_dual_channel);
assert_int_equal(0, out.mode.refresh);
assert_int_equal(1600, out.mode.ha);
assert_int_equal(560, out.mode.hbl);
assert_int_equal(64, out.mode.hso);
assert_int_equal(192, out.mode.hspw);
assert_int_equal(0, out.mode.hborder);
assert_int_equal(1200, out.mode.va);
assert_int_equal(50, out.mode.vbl);
assert_int_equal(1, out.mode.vso);
assert_int_equal(0, out.mode.vborder);
assert_int_equal(43, out.mode.phsync);
assert_int_equal(43, out.mode.pvsync);
assert_int_equal(0, out.mode.x_mm);
assert_int_equal(0, out.mode.y_mm);
assert_int_equal(1, out.mode_is_supported[EDID_MODE_640x480_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_720x480_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_1280x720_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_1920x1080_60Hz]);
}
/* Frame is modified example of base EDID frame with CEA861 extension
for DTV Display from VESA E-EDID Standard Release A2. */
static int setup_decode_edid_dtv_frame_with_extension(void **state)
{
struct edid_raw raw = {
EDID_RAW_DEFAULT_PARAMS,
.video_input_type =
EDID_DIGITAL_VSI
| EDID_INTERFACE_HDMI_A
| EDID_COLOR_BIT_DEPTH_8B,
.horizontal_size = 16, /* Aspect ratio 16:9 in landscape. */
.vertical_size = 0, /* Landscape flag */
.display_gamma = 120, /* 220% */
.supported_features =
EDID_STANDBY_MODE(0)
| EDID_SUSPEND_MODE(0)
| EDID_ACTIVE_OFF(0)
| EDID_COLOR_FORMAT_RGB444_YCRCB422_YCRCB422
| EDID_SRGB_SUPPORTED(1)
| EDID_PREFERRED_TIMING_EXTENDED_INFO
| EDID_DISPLAY_FREQUENCY_NON_CONTINUOUS,
.established_supported_timings = {
[0] = EDID_ESTABLISHED_TIMINGS_1_640x480_60Hz,
[1] = 0,
},
.manufacturers_reserved_timing = 0,
.standard_timings_supported = {
[0 ... 15] = 0,
},
.descriptor_block_1 = {
[0] = EDID_PIXEL_CLOCK(148500000u) & 0xFF,
[1] = (EDID_PIXEL_CLOCK(148500000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1920px,
Horizontal Blanking is 280px. */
[2] = 0x80,
[3] = 0x18,
[4] = 0x71,
/* Vertical Addressable Video is 1080 lines,
Vertical Blanking is 45 lines. */
[5] = 0x38,
[6] = 0x2D,
[7] = 0x40,
[8] = 88u, /* Horizontal Front Porch in pixels. */
[9] = 44u, /* Horizontal Pulse Sync Width in pixels. */
[10] = 4u, /* Vertical Front Porch is 4 lines. */
[11] = 5u, /* Vertical Sync Pulse Width is 5 lines. */
/* Horizontal Addressable Image Size is 1039mm,
Vertical Addressable Image Size is 584mm. */
[12] = 0x0F,
[13] = 0x48,
[14] = 0x42,
[15] = 0x00, /* Horizontal Border Size is 0px. */
[16] = 0x00, /* Vertical Border Size is 0px. */
/* Timing is Non-Interlaced Video,
Stereo Video is not supported,
Digital separate and syncs are requires. */
[17] = 0x1E,
},
.descriptor_block_2 = {
[0] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
[1] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1920px,
Horizontal Blanking is 280px. */
[2] = 0x80,
[3] = 0x18,
[4] = 0x71,
/* Vertical Addressable Video is 540 lines,
Vertical Blanking is 22 lines. */
[5] = 0x1C,
[6] = 0x16,
[7] = 0x20,
[8] = 88u, /* Horizontal Front Porch in pixels. */
[9] = 44u, /* Horizontal Pulse Sync Width in pixels. */
[10] = 0x25, /* Vertical Front Porch is 2 lines. */
[11] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
/* Horizontal Addressable Image Size is 1039mm,
Vertical Addressable Image Size is 584mm. */
[12] = 0x0F,
[13] = 0x48,
[14] = 0x42,
[15] = 0x00, /* Horizontal Border Size is 0px. */
[16] = 0x00, /* Vertical Border Size is 0px. */
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital separate and syncs are requires. */
[17] = 0x9E,
},
.descriptor_block_3 = {
[0] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
[1] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1280px,
Horizontal Blanking is 370px. */
[2] = 0x00,
[3] = 0x72,
[4] = 0x51,
/* Vertical Addressable Video is 720 lines,
Vertical Blanking is 30 lines. */
[5] = 0xD0,
[6] = 0x1E,
[7] = 0x20,
[8] = 110u, /* Horizontal Front Porch in pixels. */
[9] = 40u, /* Horizontal Pulse Sync Width in pixels. */
[10] = 0x55u, /* Vertical Front Porch is 5 lines. */
[11] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
/* Horizontal Addressable Image Size is 1039mm,
Vertical Addressable Image Size is 584mm. */
[12] = 0x0F,
[13] = 0x48,
[14] = 0x42,
[15] = 0x00, /* Horizontal Border Size is 0px. */
[16] = 0x00, /* Vertical Border Size is 0px. */
/* Timing is Non-Interlaced Video,
Stereo Video is not supported,
Digital separate syncs are requires. */
[17] = 0x1E,
},
.descriptor_block_4 = {
/* Display Product Name Block Tag */
[0] = 0,
[1] = 0,
[2] = 0,
[3] = 0xFC,
[4] = 0,
/* Product name */
[5] = 'A',
[6] = 'B',
[7] = 'C',
[8] = ' ',
[9] = 'L',
[10] = 'C',
[11] = 'D',
[12] = '4',
[13] = '7',
[14] = 'w',
[15] = '\n',
[16] = ' ',
[17] = ' ',
},
.extension_flag = 0x0, /* No extensions */
};
edid_raw_calc_checksum(&raw);
unsigned char ext[128] = {
[0] = 0x02, /* CEA 861 Extension Block Tag Code */
[1] = 0x03, /* CEA 861 Block Version */
[2] = 0x18, /* Detail Timing Descriptors start 0x18 bytes from here. */
/* Underscan is not supported,
Basic Audio is supported,
YCbCr 4:4:4 & YCbCr 4:2:2 are supported,
Number of native formats: 2. */
[3] = 0x72,
/* Video Data Block Tag Code is 2,
Number of Short Video Descriptor Bytes is 7. */
[4] = 0x47,
/* 1920x1080p 59.94/60 Hz 16 : 9 AR (CEA Format #16)
is a supported Native Format. */
[5] = 0x90,
/* 1920x1080i 59.94/60 Hz 16 : 9 AR (CEA Format #5)
is a supported Native Format. */
[6] = 0x85,
/* 1280x720p 59.94/60 Hz 16 : 9 AR (CEA Format #4) is a supported format. */
[7] = 0x04,
/* 720x480p 59.94/60 Hz 16 : 9 AR (CEA Format #3) is a supported format. */
[8] = 0x03,
/* 720x480p 59.94/60 Hz 4 : 3 AR (CEA Format #2) is a supported format. */
[9] = 0x02,
/* 720x480i 59.94/60 Hz 16 : 9 AR (CEA Format #7) is a supported format. */
[10] = 0x07,
/* 720x480i 59.94/60 Hz 4 : 3 AR (CEA Format #6) is a supported format. */
[11] = 0x06,
/* Audio Data Block Tag Code is 1,
Number of Short Audio Descriptor Bytes is 3. */
[12] = 0x23,
/* Audio Format Tag Code is 1 --- LPCM is supported,
Maximum number of audio channels is 2. */
[13] = 0x09,
/* Supported Sampling Frequencies include: 48kHz; 44.1kHz & 32kHz. */
[14] = 0x07,
/* Supported Sampling Bit Rates include: 24 bit; 20 bit & 16 bit. */
[15] = 0x07,
/* Speaker Allocation Block Tag Code is 4,
Number of Speaker Allocation Descriptor Bytes is 3. */
[16] = 0x83,
/* Speaker Allocation is Front-Left & Front-Right. */
[17] = 0x01,
/* Reserved */
[18 ... 19] = 0,
/* Vendor Specific Data Block Tag Code is 3,
Number of Vendor Specific Data Bytes is 5. */
[20] = 0x65,
/* 24bit IEEE registration Identifier is 0x000C03. */
[21] = 0x03,
[22] = 0x0C,
[23] = 0x00,
/* Vendor Specific Data is 0x10000. */
[24] = 0x01,
[25] = 0x00,
/* Descriptor Block 5 [18 Bytes] */
[26] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
[27] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 720px,
Horizontal Blanking is 138 px. */
[28] = 0xD0,
[29] = 0x8A,
[30] = 0x20,
/* Vertical Addressable Video is 480 lines,
Vertical Blanking is 45 lines. */
[31] = 0xE0,
[32] = 0x2D,
[33] = 0x10,
[34] = 16u, /* Horizontal Front Porch in pixels. */
[35] = 62u, /* Horizontal Sync Pulse Width in pixels. */
[36] = 0x96, /* Vertical Front Porch is 9 lines. */
[37] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
/* Displayed Image Aspect Ratio is 16:9 */
[38] = 16u,
[39] = 9u,
[40] = 0u,
/* Horizontal and Vertical Border Size is 0 px */
[41] = 0u,
[42] = 0u,
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[43] = 0x18,
/* Descriptor Block 6 [18 Bytes] */
[44] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
[45] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 720px,
Horizontal Blanking is 138 px. */
[46] = 0xD0,
[47] = 0x8A,
[48] = 0x20,
/* Vertical Addressable Video is 480 lines,
Vertical Blanking is 45 lines. */
[49] = 0xE0,
[50] = 0x2D,
[51] = 0x10,
[52] = 16u, /* Horizontal Front Porch in pixels. */
[53] = 62u, /* Horizontal Sync Pulse Width in pixels. */
[54] = 0x96, /* Vertical Front Porch is 9 lines. */
[55] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
/* Displayed Image Aspect Ratio is 4:3. */
[56] = 4u,
[57] = 3u,
[58] = 0u,
/* Horizontal and Vertical Border Size is 0px. */
[59] = 0u,
[60] = 0u,
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[61] = 0x18,
/* Descriptor Block 7 [18 Bytes] */
[62] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
[63] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1440px,
Horizontal Blanking is 276 px. */
[64] = 0xA0,
[65] = 0x14,
[66] = 0x51,
/* Vertical Addressable Video is 240 lines,
Vertical Blanking is 23 lines. */
[67] = 0xF0,
[68] = 0x16,
[69] = 0x00,
[70] = 38u, /* Horizontal Front Porch in pixels. */
[71] = 124u, /* Horizontal Sync Pulse Width in pixels. */
[72] = 0x43, /* Vertical Front Porch is 9 lines. */
[73] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
/* Displayed Image Aspect Ratio is 16:9 */
[74] = 16u,
[75] = 9u,
[76] = 0u,
/* Horizontal and Vertical Border Size is 0px. */
[77] = 0u,
[78] = 0u,
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[79] = 0x98,
/* Descriptor Block 8 [18 Bytes] */
[80] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
[81] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1440px,
Horizontal Blanking is 276 px. */
[82] = 0xA0,
[83] = 0x14,
[84] = 0x51,
/* Vertical Addressable Video is 240 lines,
Vertical Blanking is 23 lines. */
[85] = 0xF0,
[86] = 0x16,
[87] = 0x00,
[88] = 38u, /* Horizontal Front Porch in pixels. */
[89] = 124u, /* Horizontal Sync Pulse Width in pixels. */
[90] = 0x43, /* Vertical Front Porch is 9 lines. */
[91] = 0x00, /* Vertical Sync Pulse Width is 6 lines. */
/* Displayed Image Aspect Ratio is 4:3. */
[92] = 4u,
[93] = 3u,
[94] = 0u,
/* Horizontal and Vertical Border Size is 0px. */
[95] = 0u,
[96] = 0u,
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[97] = 0x98,
[99 ... 126] = 0};
ext[127] = get_raw_edid_checksum(ext);
*state = malloc(sizeof(struct test_state));
struct test_state ts = {.data_size = sizeof(raw) + sizeof(ext),
.data = malloc(sizeof(raw) + sizeof(ext))};
memcpy(ts.data, &raw, sizeof(raw));
memcpy(ts.data + sizeof(raw), &ext[0], sizeof(ext));
memcpy(*state, &ts, sizeof(ts));
return 0;
}
/* Test decoding of EDID frame with one extension. */
static void test_decode_edid_dtv_frame_with_extension(void **state)
{
struct edid out;
struct test_state *ts = *state;
/* In real-life situations frames often are not 100% conformant,
but are at least correct when it comes to key data fields. */
assert_int_equal(EDID_CONFORMANT,
decode_edid((unsigned char *)ts->data, ts->data_size, &out));
assert_int_equal(32, out.framebuffer_bits_per_pixel);
assert_int_equal(8, out.panel_bits_per_color);
assert_int_equal(24, out.panel_bits_per_pixel);
assert_int_equal(0, out.link_clock);
assert_int_equal(1920, out.x_resolution);
assert_int_equal(1080, out.y_resolution);
assert_int_equal(7680, out.bytes_per_line);
assert_int_equal(1, out.hdmi_monitor_detected);
assert_int_equal(0, strnlen(out.ascii_string, ARRAY_SIZE(out.ascii_string)));
assert_string_equal(out.manufacturer_name, EDID_MANUFACTURER_NAME);
/* Mode */
assert_null(out.mode.name);
assert_int_equal(148500, out.mode.pixel_clock);
assert_int_equal(1, out.mode.lvds_dual_channel);
assert_int_equal(0, out.mode.refresh);
assert_int_equal(1920, out.mode.ha);
assert_int_equal(280, out.mode.hbl);
assert_int_equal(88, out.mode.hso);
assert_int_equal(44, out.mode.hspw);
assert_int_equal(0, out.mode.hborder);
assert_int_equal(1080, out.mode.va);
assert_int_equal(45, out.mode.vbl);
assert_int_equal(16, out.mode.vso);
assert_int_equal(0, out.mode.vborder);
assert_int_equal(43, out.mode.phsync);
assert_int_equal(43, out.mode.pvsync);
assert_int_equal(0, out.mode.x_mm);
assert_int_equal(0, out.mode.y_mm);
assert_int_equal(1, out.mode_is_supported[EDID_MODE_640x480_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_720x480_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_1280x720_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_1920x1080_60Hz]);
}
/* Test decoding of EDID frame with one extension. Tested frame is modified
example of base EDID frame with CEA861 extension for IT/DTV Display from
VESA E-EDID Standard Release A2. */
static int setup_decode_edid_it_dtv_frame_with_extension(void **state)
{
struct edid_raw raw = {
EDID_RAW_DEFAULT_PARAMS,
.video_input_type =
EDID_DIGITAL_VSI
| EDID_INTERFACE_HDMI_A
| EDID_COLOR_BIT_DEPTH_8B,
.horizontal_size = 121, /* Aspect ratio 16:9 in landscape */
.vertical_size = 68, /* Landscape flag */
.display_gamma = 120, /* 220% */
.supported_features =
EDID_STANDBY_MODE(0)
| EDID_SUSPEND_MODE(0)
| EDID_ACTIVE_OFF(0)
| EDID_COLOR_FORMAT_RGB444_YCRCB422_YCRCB422
| EDID_SRGB_SUPPORTED(1)
| EDID_PREFERRED_TIMING_EXTENDED_INFO
| EDID_DISPLAY_FREQUENCY_NON_CONTINUOUS,
.established_supported_timings = {
[0] = EDID_ESTABLISHED_TIMINGS_1_800x600_60Hz
| EDID_ESTABLISHED_TIMINGS_1_800x600_56Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_75Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_72Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_67Hz
| EDID_ESTABLISHED_TIMINGS_1_640x480_60Hz
| EDID_ESTABLISHED_TIMINGS_1_720x400_88Hz
| EDID_ESTABLISHED_TIMINGS_1_720x400_70Hz,
[1] = EDID_ESTABLISHED_TIMINGS_2_1280x1024_75Hz
| EDID_ESTABLISHED_TIMINGS_2_1024x768_75Hz
| EDID_ESTABLISHED_TIMINGS_2_1024x768_70Hz
| EDID_ESTABLISHED_TIMINGS_2_1024x768_60Hz
| EDID_ESTABLISHED_TIMINGS_2_832x624_75Hz
| EDID_ESTABLISHED_TIMINGS_2_800x600_75Hz
| EDID_ESTABLISHED_TIMINGS_2_800x600_72Hz,
},
.manufacturers_reserved_timing = EDID_MANUFACTURERS_TIMINGS_1152x870_75Hz,
.standard_timings_supported = {
[0] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
[1] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(85),
[2] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
[3] = EDID_ASPECT_RATIO_5_4 | EDID_FIELD_REFRESH_RATE(60),
[4] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
[5] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
[6] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1280),
[7] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(60),
[8] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(1024),
[9] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(85),
[10] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(848),
[11] = EDID_ASPECT_RATIO_16_9 | EDID_FIELD_REFRESH_RATE(60),
[12] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(800),
[13] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(60),
[14] = EDID_HORIZONTAL_ACCESSIBLE_PIXELS(640),
[15] = EDID_ASPECT_RATIO_4_3 | EDID_FIELD_REFRESH_RATE(60),
},
.descriptor_block_1 = {
[0] = EDID_PIXEL_CLOCK(85500000u) & 0xFF,
[1] = (EDID_PIXEL_CLOCK(85500000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1360px,
Horizontal Blanking is 432px. */
[2] = 0x50,
[3] = 0xB0,
[4] = 0x51,
/* Vertical Addressable Video is 768 lines,
Vertical Blanking is 27 lines. */
[5] = 0x00,
[6] = 0x1B,
[7] = 0x30,
[8] = 64u, /* Horizontal Front Porch in pixels. */
[9] = 112u, /* Horizontal Pulse Sync Width in pixels. */
[10] = 0x36, /* Vertical Front Porch is 3 lines. */
[11] = 0u, /* Vertical Sync Pulse Width is 6 lines. */
/* Horizontal Addressable Image Size is 1214mm,
Vertical Addressable Image Size is 683mm. */
[12] = 0xBE,
[13] = 0xAB,
[14] = 0x42,
[15] = 0x00, /* Horizontal border size is 0px. */
[16] = 0x00, /* Vertical Border Size is 0px. */
/* Timing is Non-Interlaced Video,
Stereo Video is not supported,
Digital separate and syncs are requires. */
[17] = 0x1E,
},
.descriptor_block_2 = {
[0] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
[1] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1280px,
Horizontal Blanking is 370px. */
[2] = 0x00,
[3] = 0x72,
[4] = 0x51,
/* Vertical Addressable Video is 720 lines,
Vertical Blanking is 30 lines. */
[5] = 0xD0,
[6] = 0x1E,
[7] = 0x20,
[8] = 110u, /* Horizontal Front Porch in pixels. */
[9] = 40u, /* Horizontal Pulse Sync Width in pixels. */
[10] = 0x55, /* Vertical Front Porch is 5 lines. */
[11] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
/* Horizontal Addressable Image Size is 1214mm,
Vertical Addressable Image Size is 683mm. */
[12] = 0xBE,
[13] = 0xAB,
[14] = 0x42,
[15] = 0x00, /* Horizontal border size is 0px. */
[16] = 0x00, /* Vertical Border Size is 0px. */
/* Timing is Non-Interlaced Video,
Stereo Video is not supported,
Digital separate and syncs are required. */
[17] = 0x1E,
},
.descriptor_block_3 = {
/* Established timings III Block Tag */
[0 ... 2] = 0u,
[3] = 0xF7,
[4] = 0u,
/* VESA DMT Standard Version #10 */
[5] = 10u,
/*
* 640x350@85Hz,
* 640x400@85Hz,
* 720x400@85Hz,
* 640x480@85Hz,
* 800x600@85Hz,
* 1024x768@85Hz,
* 1152x864@75Hz are supported.
*/
[6] = 0x7F,
/*
* 1280x960@60Hz,
* 1280x960@85Hz,
* 1280x1024@60Hz,
* 1280x1024@85Hz
*/
[7] = 0x0F,
/*
* 1400x1050@60Hz (Normal Blanking),
* 1400x1050@75Hz are supported.
*/
[8] = 0x03,
/*
* 1400x1050@85Hz,
* 1600x1200@60Hz,
* 1600x1200@65Hz,
* 1600x1200@70Hz are supported.
*/
[9] = 0x87,
/*
* 1600x1200@75Hz,
* 1600x1200@85Hz are supported.
*/
[10] = 0xC0,
/* 1920 PC Timings are not supported. */
[11] = 0u,
/* Reserved */
[12 ... 17] = 0,
},
.descriptor_block_4 = {
/* Display Product Name Block Tag */
[0] = 0,
[1] = 0,
[2] = 0,
[3] = 0xFC,
[4] = 0,
/* Product name */
[5] = 'A',
[6] = 'B',
[7] = 'C',
[8] = ' ',
[9] = 'P',
[10] = 'L',
[11] = 'A',
[12] = '5',
[13] = '5',
[14] = '\n',
[15] = ' ',
[16] = ' ',
[17] = ' ',
},
.extension_flag = 0x0, /* No extensions */
};
edid_raw_calc_checksum(&raw);
unsigned char ext[128] = {
[0] = 0x02, /* CEA 861 Extension Block Tag Code */
[1] = 0x03, /* CEA 861 Block Version */
[2] = 0x17, /* Detail Timing Descriptors start 0x17 bytesfrom here */
/* Underscan is supported,
Basic Audio is supported,
YCbCr 4:4:4 & YCbCr 4:2:2 are supported,
Number of native formats: 0. */
[3] = 0xF0,
/* Video Data Block Tag Code is 2.
Number of Short Video Descriptor Bytes is 6. */
[4] = 0x46,
/* 1920x1080i 59.94/60 Hz 16 : 9 AR (CEA Format #5) is a supported format. */
[5] = 0x05,
/* 1280x720p 59.94/60 Hz 16 : 9 AR (CEA Format #4) is a supported format. */
[6] = 0x04,
/* 720x480p 59.94/60 Hz 16 : 9 AR (CEA Format #3) is a supported format. */
[7] = 0x03,
/* 720x480p 59.94/60 Hz 4 : 3 AR (CEA Format #2) is a supported format. */
[8] = 0x02,
/* 720x480i 59.94/60 Hz 16 : 9 AR (CEA Format #7) is a supported format. */
[9] = 0x07,
/* 720x480i 59.94/60 Hz 4 : 3 AR (CEA Format #6) is a supported format. */
[10] = 0x06,
/* Audio Data Block Tag Code is 1,
Number of Short Audio Descriptor Bytes is 3. */
[11] = 0x23,
/* Audio Format Tag Code is 1 --- LPCM is supported,
Maximum number of audio channels is 2. */
[12] = 0x09,
/* Supported Sampling Frequencies include: 48kHz; 44.1kHz & 32kHz. */
[13] = 0x07,
/* Supported Sampling Bit Rates include: 24 bit; 20 bit & 16 bit. */
[14] = 0x07,
/* Speaker Allocation Block Tag Code is 4,
Number of Speaker Allocation Descriptor Bytes is 3. */
[15] = 0x83,
/* Speaker Allocation is Front-Left & Front-Right */
[16] = 0x01,
/* Reserved */
[17 ... 18] = 0,
/* Vendor Specific Data Block Tag Code is 3,
Number of Vendor Specific Data Bytes is 5. */
[19] = 0x65,
/* 24bit IEEE registration Identifier is 0x000C03. */
[20] = 0x03,
[21] = 0x0C,
[22] = 0x00,
/* Vendor Specific Data is 0x10000. */
[23] = 0x01,
[24] = 0x00,
/* Descriptor Block 5 [18 Bytes] */
[25] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
[26] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1920px,
Horizontal Blanking is 280px. */
[27] = 0x80,
[28] = 0x18,
[29] = 0x71,
/* Vertical Addressable Video is 540 lines,
Vertical Blanking is 22 lines. */
[30] = 0x1C,
[31] = 0x16,
[32] = 0x20,
[33] = 88u, /* Horizontal Front Porch in pixels. */
[34] = 44u, /* Horizontal Sync Pulse Width in pixels. */
[35] = 0x25, /* Vertical Front Porch is 2 lines. */
[36] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
/* Image size: 1039mm x 584mm */
[37] = 0x0F,
[38] = 0x48,
[39] = 0x42,
/* Horizontal and Vertical Border Size is 0px. */
[40] = 0u,
[41] = 0u,
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[42] = 0x9E,
/* Descriptor Block 6 [18 Bytes] */
[43] = EDID_PIXEL_CLOCK(74250000u) & 0xFF,
[44] = (EDID_PIXEL_CLOCK(74250000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1280px,
Horizontal Blanking is 370 px. */
[45] = 0x00,
[46] = 0x72,
[47] = 0x51,
/* Vertical Addressable Video is 720 lines,
Vertical Blanking is 30 lines. */
[48] = 0xD0,
[49] = 0x1E,
[50] = 0x20,
[51] = 110u, /* Horizontal Front Porch in pixels. */
[52] = 40u, /* Horizontal Sync Pulse Width in pixels. */
[53] = 0x55, /* Vertical Front Porch is 5 lines. */
[54] = 0x00, /* Vertical Sync Pulse Width is 5 lines. */
/* Image size: 1039mm x 584mm */
[55] = 0x0F,
[56] = 0x48,
[57] = 0x42,
/* Horizontal and Vertical Border Size is 0px. */
[58] = 0u,
[59] = 0u,
/* Timing is Non-Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[60] = 0x1E,
/* Descriptor Block 7 [18 Bytes] */
[61] = EDID_PIXEL_CLOCK(27000000u) & 0xFF,
[62] = (EDID_PIXEL_CLOCK(27000000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1440px,
Horizontal Blanking is 276 px. */
[63] = 0xA0,
[64] = 0x14,
[65] = 0x51,
/* Vertical Addressable Video is 240 lines,
Vertical Blanking is 23 lines. */
[66] = 0xF0,
[67] = 0x16,
[68] = 0x00,
[69] = 38u, /* Horizontal Front Porch in pixels. */
[70] = 124u, /* Horizontal Sync Pulse Width in pixels. */
[71] = 0x43, /* Vertical Front Porch is 4 lines. */
[72] = 0x00, /* Vertical Sync Pulse Width is 3 lines. */
/* Image size: 1039mm x 584mm */
[73] = 0x0F,
[74] = 0x48,
[75] = 0x42,
/* Horizontal and Vertical Border Size is 0px. */
[76] = 0u,
[77] = 0u,
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[78] = 0x18,
/* Descriptor Block 8 [18 Bytes] */
[79] = EDID_PIXEL_CLOCK(27027000u) & 0xFF,
[80] = (EDID_PIXEL_CLOCK(27027000u) >> 8) & 0xFF,
/* Horizontal Addressable Video is 1440px,
Horizontal Blanking is 276 px. */
[81] = 0xA0,
[82] = 0x14,
[83] = 0x51,
/* Vertical Addressable Video is 240 lines,
Vertical Blanking is 23 lines. */
[84] = 0xF0,
[85] = 0x16,
[86] = 0x00,
[87] = 38u, /* Horizontal Front Porch in pixels. */
[88] = 124u, /* Horizontal Sync Pulse Width in pixels. */
[89] = 0x43, /* Vertical Front Porch is 4 lines. */
[90] = 0x00, /* Vertical Sync Pulse Width is 3 lines. */
/* Image size: 1039mm x 584mm */
[91] = 0x0F,
[92] = 0x48,
[93] = 0x42,
/* Horizontal and Vertical Border Size is 0px. */
[94] = 0u,
[95] = 0u,
/* Timing is Interlaced Video,
Stereo Video is not supported,
Digital Separate Syncs are required. */
[96] = 0x98,
[97 ... 126] = 0,
};
ext[127] = get_raw_edid_checksum(ext);
*state = malloc(sizeof(struct test_state));
struct test_state ts = {.data_size = sizeof(raw) + sizeof(ext),
.data = malloc(sizeof(raw) + sizeof(ext))};
memcpy(ts.data, &raw, sizeof(raw));
memcpy(ts.data + sizeof(raw), &ext[0], sizeof(ext));
memcpy(*state, &ts, sizeof(ts));
return 0;
}
static void test_decode_edid_it_dtv_frame_with_extension(void **state)
{
struct edid out;
struct test_state *ts = *state;
/* In real-life situations frames often are not 100% conformant,
but are at least correct when it comes to key data fields. */
assert_int_equal(EDID_CONFORMANT,
decode_edid((unsigned char *)ts->data, ts->data_size, &out));
assert_int_equal(32, out.framebuffer_bits_per_pixel);
assert_int_equal(8, out.panel_bits_per_color);
assert_int_equal(24, out.panel_bits_per_pixel);
assert_int_equal(0, out.link_clock);
assert_int_equal(1360, out.x_resolution);
assert_int_equal(768, out.y_resolution);
assert_int_equal(5440, out.bytes_per_line);
assert_int_equal(1, out.hdmi_monitor_detected);
assert_int_equal(0, strnlen(out.ascii_string, ARRAY_SIZE(out.ascii_string)));
assert_string_equal(out.manufacturer_name, EDID_MANUFACTURER_NAME);
/* Mode */
assert_null(out.mode.name);
assert_int_equal(85500, out.mode.pixel_clock);
assert_int_equal(0, out.mode.lvds_dual_channel);
assert_int_equal(0, out.mode.refresh);
assert_int_equal(1360, out.mode.ha);
assert_int_equal(432, out.mode.hbl);
assert_int_equal(64, out.mode.hso);
assert_int_equal(112, out.mode.hspw);
assert_int_equal(0, out.mode.hborder);
assert_int_equal(768, out.mode.va);
assert_int_equal(27, out.mode.vbl);
assert_int_equal(3, out.mode.vso);
assert_int_equal(0, out.mode.vborder);
assert_int_equal(43, out.mode.phsync);
assert_int_equal(43, out.mode.pvsync);
assert_int_equal(0, out.mode.x_mm);
assert_int_equal(0, out.mode.y_mm);
assert_int_equal(1, out.mode_is_supported[EDID_MODE_640x480_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_720x480_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_1280x720_60Hz]);
assert_int_equal(0, out.mode_is_supported[EDID_MODE_1920x1080_60Hz]);
}
static int teardown_edid_test(void **state)
{
struct test_state *ts;
if (*state == NULL)
return 0;
ts = (struct test_state *)*state;
free(ts->data);
free(ts);
return 0;
}
static void test_edid_set_framebuffer_bits_per_pixel(void **state)
{
struct edid out;
struct test_state *ts = *state;
decode_edid((unsigned char *)ts->data, ts->data_size, &out);
edid_set_framebuffer_bits_per_pixel(&out, 16, 2);
assert_int_equal(16, out.framebuffer_bits_per_pixel);
assert_int_equal(out.mode.ha * 2, out.bytes_per_line);
assert_int_equal(out.bytes_per_line / (16 / 8), out.x_resolution);
assert_int_equal(out.mode.va, out.y_resolution);
edid_set_framebuffer_bits_per_pixel(&out, 24, 4);
assert_int_equal(24, out.framebuffer_bits_per_pixel);
assert_int_equal(out.mode.ha * 3, out.bytes_per_line);
assert_int_equal(out.bytes_per_line / (24 / 8), out.x_resolution);
assert_int_equal(out.mode.va, out.y_resolution);
edid_set_framebuffer_bits_per_pixel(&out, 32, 4);
assert_int_equal(32, out.framebuffer_bits_per_pixel);
assert_int_equal(out.mode.ha * 4, out.bytes_per_line);
assert_int_equal(out.bytes_per_line / (32 / 8), out.x_resolution);
assert_int_equal(out.mode.va, out.y_resolution);
}
int main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_decode_edid_no_edid),
cmocka_unit_test(test_decode_edid_invalid_header),
cmocka_unit_test_setup_teardown(test_decode_edid_basic_frame,
setup_decode_edid_basic_frame,
teardown_edid_test),
cmocka_unit_test_setup_teardown(test_decode_edid_dtv_frame_with_extension,
setup_decode_edid_dtv_frame_with_extension,
teardown_edid_test),
cmocka_unit_test_setup_teardown(test_decode_edid_it_dtv_frame_with_extension,
setup_decode_edid_it_dtv_frame_with_extension,
teardown_edid_test),
cmocka_unit_test_setup_teardown(test_edid_set_framebuffer_bits_per_pixel,
setup_decode_edid_basic_frame,
teardown_edid_test),
};
return cb_run_group_tests(tests, NULL, NULL);
}
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