drm/edid/firmware: Remove built-in EDIDs
The EDID firmware loading mechanism introduced a few built-in EDIDs that
could be forced on any connector, bypassing the EDIDs it exposes.
While convenient, this limited set of EDIDs doesn't take into account
the connector type, and we can end up with an EDID that is completely
invalid for a given connector.
For example, the edid/800x600.bin file matches the following EDID:
edid-decode (hex):
00 ff ff ff ff ff ff 00 31 d8 00 00 00 00 00 00
05 16 01 03 6d 1b 14 78 ea 5e c0 a4 59 4a 98 25
20 50 54 01 00 00 45 40 01 01 01 01 01 01 01 01
01 01 01 01 01 01 a0 0f 20 00 31 58 1c 20 28 80
14 00 15 d0 10 00 00 1e 00 00 00 ff 00 4c 69 6e
75 78 20 23 30 0a 20 20 20 20 00 00 00 fd 00 3b
3d 24 26 05 00 0a 20 20 20 20 20 20 00 00 00 fc
00 4c 69 6e 75 78 20 53 56 47 41 0a 20 20 00 c2
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.3
Vendor & Product Identification:
Manufacturer: LNX
Model: 0
Made in: week 5 of 2012
Basic Display Parameters & Features:
Analog display
Signal Level Standard: 0.700 : 0.000 : 0.700 V p-p
Blank level equals black level
Sync: Separate Composite Serration
Maximum image size: 27 cm x 20 cm
Gamma: 2.20
DPMS levels: Standby Suspend Off
RGB color display
First detailed timing is the preferred timing
Color Characteristics:
Red : 0.6416, 0.3486
Green: 0.2919, 0.5957
Blue : 0.1474, 0.1250
White: 0.3125, 0.3281
Established Timings I & II:
DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz
Standard Timings:
DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz
Detailed Timing Descriptors:
DTD 1: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz (277 mm x 208 mm)
Hfront 40 Hsync 128 Hback 88 Hpol P
Vfront 1 Vsync 4 Vback 23 Vpol P
Display Product Serial Number: 'Linux #0'
Display Range Limits:
Monitor ranges (GTF): 59-61 Hz V, 36-38 kHz H, max dotclock 50 MHz
Display Product Name: 'Linux SVGA'
Checksum: 0xc2
So, an analog monitor EDID. However, if the connector was an HDMI
monitor for example, it breaks the HDMI specification that requires,
among other things, a digital display, the VIC 1 mode and an HDMI Forum
Vendor Specific Data Block in an CTA-861 extension.
We thus end up with a completely invalid EDID, which thus might confuse
HDMI-related code that could parse it.
After some discussions on IRC, we identified mainly two ways to fix
this:
- We can either create more EDIDs for each connector type to provide
a built-in EDID that matches the resolution passed in the name, and
still be a sensible EDID for that connector type;
- Or we can just prevent the EDID to be exposed to userspace if it's
built-in.
Or possibly both.
However, the conclusion was that maybe we just don't need the built-in
EDIDs at all and we should just get rid of them. So here we are.
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240221092636.691701-1-mripard@kernel.org
This commit is contained in:
Maxime Ripard
parent
358e76fd61
commit
89ac522d45
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@ -24,37 +24,4 @@ restrictions later on.
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As a remedy for such situations, the kernel configuration item
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CONFIG_DRM_LOAD_EDID_FIRMWARE was introduced. It allows to provide an
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individually prepared or corrected EDID data set in the /lib/firmware
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directory from where it is loaded via the firmware interface. The code
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(see drivers/gpu/drm/drm_edid_load.c) contains built-in data sets for
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commonly used screen resolutions (800x600, 1024x768, 1280x1024, 1600x1200,
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1680x1050, 1920x1080) as binary blobs, but the kernel source tree does
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not contain code to create these data. In order to elucidate the origin
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of the built-in binary EDID blobs and to facilitate the creation of
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individual data for a specific misbehaving monitor, commented sources
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and a Makefile environment are given here.
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To create binary EDID and C source code files from the existing data
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material, simply type "make" in tools/edid/.
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If you want to create your own EDID file, copy the file 1024x768.S,
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replace the settings with your own data and add a new target to the
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Makefile. Please note that the EDID data structure expects the timing
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values in a different way as compared to the standard X11 format.
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X11:
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HTimings:
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hdisp hsyncstart hsyncend htotal
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VTimings:
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vdisp vsyncstart vsyncend vtotal
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EDID::
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#define XPIX hdisp
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#define XBLANK htotal-hdisp
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#define XOFFSET hsyncstart-hdisp
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#define XPULSE hsyncend-hsyncstart
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#define YPIX vdisp
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#define YBLANK vtotal-vdisp
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#define YOFFSET vsyncstart-vdisp
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#define YPULSE vsyncend-vsyncstart
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directory from where it is loaded via the firmware interface.
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@ -1162,16 +1162,10 @@
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panels may send no or incorrect EDID data sets.
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This parameter allows to specify an EDID data sets
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in the /lib/firmware directory that are used instead.
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Generic built-in EDID data sets are used, if one of
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edid/1024x768.bin, edid/1280x1024.bin,
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edid/1680x1050.bin, or edid/1920x1080.bin is given
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and no file with the same name exists. Details and
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instructions how to build your own EDID data are
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available in Documentation/admin-guide/edid.rst. An EDID
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data set will only be used for a particular connector,
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if its name and a colon are prepended to the EDID
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name. Each connector may use a unique EDID data
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set by separating the files with a comma. An EDID
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An EDID data set will only be used for a particular
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connector, if its name and a colon are prepended to
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the EDID name. Each connector may use a unique EDID
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data set by separating the files with a comma. An EDID
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data set with no connector name will be used for
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any connectors not explicitly specified.
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@ -20,162 +20,28 @@
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static char edid_firmware[PATH_MAX];
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module_param_string(edid_firmware, edid_firmware, sizeof(edid_firmware), 0644);
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MODULE_PARM_DESC(edid_firmware, "Do not probe monitor, use specified EDID blob "
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"from built-in data or /lib/firmware instead. ");
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#define GENERIC_EDIDS 6
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static const char * const generic_edid_name[GENERIC_EDIDS] = {
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"edid/800x600.bin",
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"edid/1024x768.bin",
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"edid/1280x1024.bin",
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"edid/1600x1200.bin",
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"edid/1680x1050.bin",
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"edid/1920x1080.bin",
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};
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static const u8 generic_edid[GENERIC_EDIDS][128] = {
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x1b, 0x14, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x01, 0x00, 0x00, 0x45, 0x40,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xa0, 0x0f,
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0x20, 0x00, 0x31, 0x58, 0x1c, 0x20, 0x28, 0x80,
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0x14, 0x00, 0x15, 0xd0, 0x10, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x24, 0x26, 0x05, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
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0x56, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xc2,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x23, 0x1a, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x08, 0x00, 0x61, 0x40,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x64, 0x19,
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0x00, 0x40, 0x41, 0x00, 0x26, 0x30, 0x08, 0x90,
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0x36, 0x00, 0x63, 0x0a, 0x11, 0x00, 0x00, 0x18,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x2f, 0x31, 0x07, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x58,
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0x47, 0x41, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x55,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x2c, 0x23, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0x81, 0x80,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x30, 0x2a,
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0x00, 0x98, 0x51, 0x00, 0x2a, 0x40, 0x30, 0x70,
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0x13, 0x00, 0xbc, 0x63, 0x11, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x3e, 0x40, 0x0b, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
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0x58, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xa0,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x37, 0x29, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xa9, 0x40,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x48, 0x3f,
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0x40, 0x30, 0x62, 0xb0, 0x32, 0x40, 0x40, 0xc0,
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0x13, 0x00, 0x2b, 0xa0, 0x21, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x4a, 0x4c, 0x11, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x55,
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0x58, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0x9d,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x2b, 0x1b, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xb3, 0x00,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x21, 0x39,
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0x90, 0x30, 0x62, 0x1a, 0x27, 0x40, 0x68, 0xb0,
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0x36, 0x00, 0xb5, 0x11, 0x11, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x40, 0x42, 0x0f, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x57,
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0x53, 0x58, 0x47, 0x41, 0x0a, 0x20, 0x00, 0x26,
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},
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{
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x05, 0x16, 0x01, 0x03, 0x6d, 0x32, 0x1c, 0x78,
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0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
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0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xd1, 0xc0,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a,
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0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c,
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0x45, 0x00, 0xf4, 0x19, 0x11, 0x00, 0x00, 0x1e,
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0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
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0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
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0x3d, 0x42, 0x44, 0x0f, 0x00, 0x0a, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
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0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x46,
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0x48, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x05,
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},
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};
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MODULE_PARM_DESC(edid_firmware,
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"Do not probe monitor, use specified EDID blob from /lib/firmware instead.");
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static const struct drm_edid *edid_load(struct drm_connector *connector, const char *name)
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{
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const struct firmware *fw = NULL;
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const u8 *fwdata;
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const struct drm_edid *drm_edid;
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int fwsize, builtin;
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int err;
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builtin = match_string(generic_edid_name, GENERIC_EDIDS, name);
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if (builtin >= 0) {
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fwdata = generic_edid[builtin];
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fwsize = sizeof(generic_edid[builtin]);
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} else {
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int err;
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err = request_firmware(&fw, name, connector->dev->dev);
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if (err) {
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drm_err(connector->dev,
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"[CONNECTOR:%d:%s] Requesting EDID firmware \"%s\" failed (err=%d)\n",
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connector->base.id, connector->name,
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name, err);
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return ERR_PTR(err);
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}
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fwdata = fw->data;
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fwsize = fw->size;
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err = request_firmware(&fw, name, connector->dev->dev);
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if (err) {
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drm_err(connector->dev,
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"[CONNECTOR:%d:%s] Requesting EDID firmware \"%s\" failed (err=%d)\n",
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connector->base.id, connector->name,
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name, err);
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return ERR_PTR(err);
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}
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drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] Loaded %s firmware EDID \"%s\"\n",
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connector->base.id, connector->name,
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builtin >= 0 ? "built-in" : "external", name);
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drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] Loaded external firmware EDID \"%s\"\n",
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connector->base.id, connector->name, name);
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drm_edid = drm_edid_alloc(fwdata, fwsize);
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drm_edid = drm_edid_alloc(fw->data, fw->size);
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if (!drm_edid_valid(drm_edid)) {
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drm_err(connector->dev, "Invalid firmware EDID \"%s\"\n", name);
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drm_edid_free(drm_edid);
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@ -1,43 +0,0 @@
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/*
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1024x768.S: EDID data set for standard 1024x768 60 Hz monitor
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Copyright (C) 2011 Carsten Emde <C.Emde@osadl.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
|
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along with this program; if not, write to the Free Software
|
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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||||
/* EDID */
|
||||
#define VERSION 1
|
||||
#define REVISION 3
|
||||
|
||||
/* Display */
|
||||
#define CLOCK 65000 /* kHz */
|
||||
#define XPIX 1024
|
||||
#define YPIX 768
|
||||
#define XY_RATIO XY_RATIO_4_3
|
||||
#define XBLANK 320
|
||||
#define YBLANK 38
|
||||
#define XOFFSET 8
|
||||
#define XPULSE 144
|
||||
#define YOFFSET 3
|
||||
#define YPULSE 6
|
||||
#define DPI 72
|
||||
#define VFREQ 60 /* Hz */
|
||||
#define TIMING_NAME "Linux XGA"
|
||||
#define ESTABLISHED_TIMING2_BITS 0x08 /* Bit 3 -> 1024x768 @60 Hz */
|
||||
#define HSYNC_POL 0
|
||||
#define VSYNC_POL 0
|
||||
|
||||
#include "edid.S"
|
||||
|
|
@ -1,43 +0,0 @@
|
|||
/*
|
||||
1280x1024.S: EDID data set for standard 1280x1024 60 Hz monitor
|
||||
|
||||
Copyright (C) 2011 Carsten Emde <C.Emde@osadl.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
/* EDID */
|
||||
#define VERSION 1
|
||||
#define REVISION 3
|
||||
|
||||
/* Display */
|
||||
#define CLOCK 108000 /* kHz */
|
||||
#define XPIX 1280
|
||||
#define YPIX 1024
|
||||
#define XY_RATIO XY_RATIO_5_4
|
||||
#define XBLANK 408
|
||||
#define YBLANK 42
|
||||
#define XOFFSET 48
|
||||
#define XPULSE 112
|
||||
#define YOFFSET 1
|
||||
#define YPULSE 3
|
||||
#define DPI 72
|
||||
#define VFREQ 60 /* Hz */
|
||||
#define TIMING_NAME "Linux SXGA"
|
||||
/* No ESTABLISHED_TIMINGx_BITS */
|
||||
#define HSYNC_POL 1
|
||||
#define VSYNC_POL 1
|
||||
|
||||
#include "edid.S"
|
||||
|
|
@ -1,43 +0,0 @@
|
|||
/*
|
||||
1600x1200.S: EDID data set for standard 1600x1200 60 Hz monitor
|
||||
|
||||
Copyright (C) 2013 Carsten Emde <C.Emde@osadl.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
/* EDID */
|
||||
#define VERSION 1
|
||||
#define REVISION 3
|
||||
|
||||
/* Display */
|
||||
#define CLOCK 162000 /* kHz */
|
||||
#define XPIX 1600
|
||||
#define YPIX 1200
|
||||
#define XY_RATIO XY_RATIO_4_3
|
||||
#define XBLANK 560
|
||||
#define YBLANK 50
|
||||
#define XOFFSET 64
|
||||
#define XPULSE 192
|
||||
#define YOFFSET 1
|
||||
#define YPULSE 3
|
||||
#define DPI 72
|
||||
#define VFREQ 60 /* Hz */
|
||||
#define TIMING_NAME "Linux UXGA"
|
||||
/* No ESTABLISHED_TIMINGx_BITS */
|
||||
#define HSYNC_POL 1
|
||||
#define VSYNC_POL 1
|
||||
|
||||
#include "edid.S"
|
||||
|
|
@ -1,43 +0,0 @@
|
|||
/*
|
||||
1680x1050.S: EDID data set for standard 1680x1050 60 Hz monitor
|
||||
|
||||
Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
/* EDID */
|
||||
#define VERSION 1
|
||||
#define REVISION 3
|
||||
|
||||
/* Display */
|
||||
#define CLOCK 146250 /* kHz */
|
||||
#define XPIX 1680
|
||||
#define YPIX 1050
|
||||
#define XY_RATIO XY_RATIO_16_10
|
||||
#define XBLANK 560
|
||||
#define YBLANK 39
|
||||
#define XOFFSET 104
|
||||
#define XPULSE 176
|
||||
#define YOFFSET 3
|
||||
#define YPULSE 6
|
||||
#define DPI 96
|
||||
#define VFREQ 60 /* Hz */
|
||||
#define TIMING_NAME "Linux WSXGA"
|
||||
/* No ESTABLISHED_TIMINGx_BITS */
|
||||
#define HSYNC_POL 1
|
||||
#define VSYNC_POL 1
|
||||
|
||||
#include "edid.S"
|
||||
|
|
@ -1,43 +0,0 @@
|
|||
/*
|
||||
1920x1080.S: EDID data set for standard 1920x1080 60 Hz monitor
|
||||
|
||||
Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
/* EDID */
|
||||
#define VERSION 1
|
||||
#define REVISION 3
|
||||
|
||||
/* Display */
|
||||
#define CLOCK 148500 /* kHz */
|
||||
#define XPIX 1920
|
||||
#define YPIX 1080
|
||||
#define XY_RATIO XY_RATIO_16_9
|
||||
#define XBLANK 280
|
||||
#define YBLANK 45
|
||||
#define XOFFSET 88
|
||||
#define XPULSE 44
|
||||
#define YOFFSET 4
|
||||
#define YPULSE 5
|
||||
#define DPI 96
|
||||
#define VFREQ 60 /* Hz */
|
||||
#define TIMING_NAME "Linux FHD"
|
||||
/* No ESTABLISHED_TIMINGx_BITS */
|
||||
#define HSYNC_POL 1
|
||||
#define VSYNC_POL 1
|
||||
|
||||
#include "edid.S"
|
||||
|
|
@ -1,40 +0,0 @@
|
|||
/*
|
||||
800x600.S: EDID data set for standard 800x600 60 Hz monitor
|
||||
|
||||
Copyright (C) 2011 Carsten Emde <C.Emde@osadl.org>
|
||||
Copyright (C) 2014 Linaro Limited
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
/* EDID */
|
||||
#define VERSION 1
|
||||
#define REVISION 3
|
||||
|
||||
/* Display */
|
||||
#define CLOCK 40000 /* kHz */
|
||||
#define XPIX 800
|
||||
#define YPIX 600
|
||||
#define XY_RATIO XY_RATIO_4_3
|
||||
#define XBLANK 256
|
||||
#define YBLANK 28
|
||||
#define XOFFSET 40
|
||||
#define XPULSE 128
|
||||
#define YOFFSET 1
|
||||
#define YPULSE 4
|
||||
#define DPI 72
|
||||
#define VFREQ 60 /* Hz */
|
||||
#define TIMING_NAME "Linux SVGA"
|
||||
#define ESTABLISHED_TIMING1_BITS 0x01 /* Bit 0: 800x600 @ 60Hz */
|
||||
#define HSYNC_POL 1
|
||||
#define VSYNC_POL 1
|
||||
|
||||
#include "edid.S"
|
||||
|
|
@ -1,37 +0,0 @@
|
|||
|
||||
SOURCES := $(wildcard [0-9]*x[0-9]*.S)
|
||||
|
||||
BIN := $(patsubst %.S, %.bin, $(SOURCES))
|
||||
|
||||
IHEX := $(patsubst %.S, %.bin.ihex, $(SOURCES))
|
||||
|
||||
CODE := $(patsubst %.S, %.c, $(SOURCES))
|
||||
|
||||
all: $(BIN) $(IHEX) $(CODE)
|
||||
|
||||
clean:
|
||||
@rm -f *.o *.bin.ihex *.bin *.c
|
||||
|
||||
%.o: %.S
|
||||
@cc -c $^
|
||||
|
||||
%.bin.nocrc: %.o
|
||||
@objcopy -Obinary $^ $@
|
||||
|
||||
%.crc: %.bin.nocrc
|
||||
@list=$$(for i in `seq 1 127`; do head -c$$i $^ | tail -c1 \
|
||||
| hexdump -v -e '/1 "%02X+"'; done); \
|
||||
echo "ibase=16;100-($${list%?})%100" | bc >$@
|
||||
|
||||
%.p: %.crc %.S
|
||||
@cc -c -DCRC="$$(cat $*.crc)" -o $@ $*.S
|
||||
|
||||
%.bin: %.p
|
||||
@objcopy -Obinary $^ $@
|
||||
|
||||
%.bin.ihex: %.p
|
||||
@objcopy -Oihex $^ $@
|
||||
@dos2unix $@ 2>/dev/null
|
||||
|
||||
%.c: %.bin
|
||||
@echo "{" >$@; hexdump -f hex $^ >>$@; echo "};" >>$@
|
||||
|
|
@ -1,274 +0,0 @@
|
|||
/*
|
||||
edid.S: EDID data template
|
||||
|
||||
Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
|
||||
/* Manufacturer */
|
||||
#define MFG_LNX1 'L'
|
||||
#define MFG_LNX2 'N'
|
||||
#define MFG_LNX3 'X'
|
||||
#define SERIAL 0
|
||||
#define YEAR 2012
|
||||
#define WEEK 5
|
||||
|
||||
/* EDID 1.3 standard definitions */
|
||||
#define XY_RATIO_16_10 0b00
|
||||
#define XY_RATIO_4_3 0b01
|
||||
#define XY_RATIO_5_4 0b10
|
||||
#define XY_RATIO_16_9 0b11
|
||||
|
||||
/* Provide defaults for the timing bits */
|
||||
#ifndef ESTABLISHED_TIMING1_BITS
|
||||
#define ESTABLISHED_TIMING1_BITS 0x00
|
||||
#endif
|
||||
#ifndef ESTABLISHED_TIMING2_BITS
|
||||
#define ESTABLISHED_TIMING2_BITS 0x00
|
||||
#endif
|
||||
#ifndef ESTABLISHED_TIMING3_BITS
|
||||
#define ESTABLISHED_TIMING3_BITS 0x00
|
||||
#endif
|
||||
|
||||
#define mfgname2id(v1,v2,v3) \
|
||||
((((v1-'@')&0x1f)<<10)+(((v2-'@')&0x1f)<<5)+((v3-'@')&0x1f))
|
||||
#define swap16(v1) ((v1>>8)+((v1&0xff)<<8))
|
||||
#define lsbs2(v1,v2) (((v1&0x0f)<<4)+(v2&0x0f))
|
||||
#define msbs2(v1,v2) ((((v1>>8)&0x0f)<<4)+((v2>>8)&0x0f))
|
||||
#define msbs4(v1,v2,v3,v4) \
|
||||
((((v1>>8)&0x03)<<6)+(((v2>>8)&0x03)<<4)+\
|
||||
(((v3>>4)&0x03)<<2)+((v4>>4)&0x03))
|
||||
#define pixdpi2mm(pix,dpi) ((pix*25)/dpi)
|
||||
#define xsize pixdpi2mm(XPIX,DPI)
|
||||
#define ysize pixdpi2mm(YPIX,DPI)
|
||||
|
||||
.data
|
||||
|
||||
/* Fixed header pattern */
|
||||
header: .byte 0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
|
||||
|
||||
mfg_id: .hword swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
|
||||
|
||||
prod_code: .hword 0
|
||||
|
||||
/* Serial number. 32 bits, little endian. */
|
||||
serial_number: .long SERIAL
|
||||
|
||||
/* Week of manufacture */
|
||||
week: .byte WEEK
|
||||
|
||||
/* Year of manufacture, less 1990. (1990-2245)
|
||||
If week=255, it is the model year instead */
|
||||
year: .byte YEAR-1990
|
||||
|
||||
version: .byte VERSION /* EDID version, usually 1 (for 1.3) */
|
||||
revision: .byte REVISION /* EDID revision, usually 3 (for 1.3) */
|
||||
|
||||
/* If Bit 7=1 Digital input. If set, the following bit definitions apply:
|
||||
Bits 6-1 Reserved, must be 0
|
||||
Bit 0 Signal is compatible with VESA DFP 1.x TMDS CRGB,
|
||||
1 pixel per clock, up to 8 bits per color, MSB aligned,
|
||||
If Bit 7=0 Analog input. If clear, the following bit definitions apply:
|
||||
Bits 6-5 Video white and sync levels, relative to blank
|
||||
00=+0.7/-0.3 V; 01=+0.714/-0.286 V;
|
||||
10=+1.0/-0.4 V; 11=+0.7/0 V
|
||||
Bit 4 Blank-to-black setup (pedestal) expected
|
||||
Bit 3 Separate sync supported
|
||||
Bit 2 Composite sync (on HSync) supported
|
||||
Bit 1 Sync on green supported
|
||||
Bit 0 VSync pulse must be serrated when somposite or
|
||||
sync-on-green is used. */
|
||||
video_parms: .byte 0x6d
|
||||
|
||||
/* Maximum horizontal image size, in centimetres
|
||||
(max 292 cm/115 in at 16:9 aspect ratio) */
|
||||
max_hor_size: .byte xsize/10
|
||||
|
||||
/* Maximum vertical image size, in centimetres.
|
||||
If either byte is 0, undefined (e.g. projector) */
|
||||
max_vert_size: .byte ysize/10
|
||||
|
||||
/* Display gamma, minus 1, times 100 (range 1.00-3.5 */
|
||||
gamma: .byte 120
|
||||
|
||||
/* Bit 7 DPMS standby supported
|
||||
Bit 6 DPMS suspend supported
|
||||
Bit 5 DPMS active-off supported
|
||||
Bits 4-3 Display type: 00=monochrome; 01=RGB colour;
|
||||
10=non-RGB multicolour; 11=undefined
|
||||
Bit 2 Standard sRGB colour space. Bytes 25-34 must contain
|
||||
sRGB standard values.
|
||||
Bit 1 Preferred timing mode specified in descriptor block 1.
|
||||
Bit 0 GTF supported with default parameter values. */
|
||||
dsp_features: .byte 0xea
|
||||
|
||||
/* Chromaticity coordinates. */
|
||||
/* Red and green least-significant bits
|
||||
Bits 7-6 Red x value least-significant 2 bits
|
||||
Bits 5-4 Red y value least-significant 2 bits
|
||||
Bits 3-2 Green x value lst-significant 2 bits
|
||||
Bits 1-0 Green y value least-significant 2 bits */
|
||||
red_green_lsb: .byte 0x5e
|
||||
|
||||
/* Blue and white least-significant 2 bits */
|
||||
blue_white_lsb: .byte 0xc0
|
||||
|
||||
/* Red x value most significant 8 bits.
|
||||
0-255 encodes 0-0.996 (255/256); 0-0.999 (1023/1024) with lsbits */
|
||||
red_x_msb: .byte 0xa4
|
||||
|
||||
/* Red y value most significant 8 bits */
|
||||
red_y_msb: .byte 0x59
|
||||
|
||||
/* Green x and y value most significant 8 bits */
|
||||
green_x_y_msb: .byte 0x4a,0x98
|
||||
|
||||
/* Blue x and y value most significant 8 bits */
|
||||
blue_x_y_msb: .byte 0x25,0x20
|
||||
|
||||
/* Default white point x and y value most significant 8 bits */
|
||||
white_x_y_msb: .byte 0x50,0x54
|
||||
|
||||
/* Established timings */
|
||||
/* Bit 7 720x400 @ 70 Hz
|
||||
Bit 6 720x400 @ 88 Hz
|
||||
Bit 5 640x480 @ 60 Hz
|
||||
Bit 4 640x480 @ 67 Hz
|
||||
Bit 3 640x480 @ 72 Hz
|
||||
Bit 2 640x480 @ 75 Hz
|
||||
Bit 1 800x600 @ 56 Hz
|
||||
Bit 0 800x600 @ 60 Hz */
|
||||
estbl_timing1: .byte ESTABLISHED_TIMING1_BITS
|
||||
|
||||
/* Bit 7 800x600 @ 72 Hz
|
||||
Bit 6 800x600 @ 75 Hz
|
||||
Bit 5 832x624 @ 75 Hz
|
||||
Bit 4 1024x768 @ 87 Hz, interlaced (1024x768)
|
||||
Bit 3 1024x768 @ 60 Hz
|
||||
Bit 2 1024x768 @ 72 Hz
|
||||
Bit 1 1024x768 @ 75 Hz
|
||||
Bit 0 1280x1024 @ 75 Hz */
|
||||
estbl_timing2: .byte ESTABLISHED_TIMING2_BITS
|
||||
|
||||
/* Bit 7 1152x870 @ 75 Hz (Apple Macintosh II)
|
||||
Bits 6-0 Other manufacturer-specific display mod */
|
||||
estbl_timing3: .byte ESTABLISHED_TIMING3_BITS
|
||||
|
||||
/* Standard timing */
|
||||
/* X resolution, less 31, divided by 8 (256-2288 pixels) */
|
||||
std_xres: .byte (XPIX/8)-31
|
||||
/* Y resolution, X:Y pixel ratio
|
||||
Bits 7-6 X:Y pixel ratio: 00=16:10; 01=4:3; 10=5:4; 11=16:9.
|
||||
Bits 5-0 Vertical frequency, less 60 (60-123 Hz) */
|
||||
std_vres: .byte (XY_RATIO<<6)+VFREQ-60
|
||||
.fill 7,2,0x0101 /* Unused */
|
||||
|
||||
descriptor1:
|
||||
/* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */
|
||||
clock: .hword CLOCK/10
|
||||
|
||||
/* Horizontal active pixels 8 lsbits (0-4095) */
|
||||
x_act_lsb: .byte XPIX&0xff
|
||||
/* Horizontal blanking pixels 8 lsbits (0-4095)
|
||||
End of active to start of next active. */
|
||||
x_blk_lsb: .byte XBLANK&0xff
|
||||
/* Bits 7-4 Horizontal active pixels 4 msbits
|
||||
Bits 3-0 Horizontal blanking pixels 4 msbits */
|
||||
x_msbs: .byte msbs2(XPIX,XBLANK)
|
||||
|
||||
/* Vertical active lines 8 lsbits (0-4095) */
|
||||
y_act_lsb: .byte YPIX&0xff
|
||||
/* Vertical blanking lines 8 lsbits (0-4095) */
|
||||
y_blk_lsb: .byte YBLANK&0xff
|
||||
/* Bits 7-4 Vertical active lines 4 msbits
|
||||
Bits 3-0 Vertical blanking lines 4 msbits */
|
||||
y_msbs: .byte msbs2(YPIX,YBLANK)
|
||||
|
||||
/* Horizontal sync offset pixels 8 lsbits (0-1023) From blanking start */
|
||||
x_snc_off_lsb: .byte XOFFSET&0xff
|
||||
/* Horizontal sync pulse width pixels 8 lsbits (0-1023) */
|
||||
x_snc_pls_lsb: .byte XPULSE&0xff
|
||||
/* Bits 7-4 Vertical sync offset lines 4 lsbits (0-63)
|
||||
Bits 3-0 Vertical sync pulse width lines 4 lsbits (0-63) */
|
||||
y_snc_lsb: .byte lsbs2(YOFFSET, YPULSE)
|
||||
/* Bits 7-6 Horizontal sync offset pixels 2 msbits
|
||||
Bits 5-4 Horizontal sync pulse width pixels 2 msbits
|
||||
Bits 3-2 Vertical sync offset lines 2 msbits
|
||||
Bits 1-0 Vertical sync pulse width lines 2 msbits */
|
||||
xy_snc_msbs: .byte msbs4(XOFFSET,XPULSE,YOFFSET,YPULSE)
|
||||
|
||||
/* Horizontal display size, mm, 8 lsbits (0-4095 mm, 161 in) */
|
||||
x_dsp_size: .byte xsize&0xff
|
||||
|
||||
/* Vertical display size, mm, 8 lsbits (0-4095 mm, 161 in) */
|
||||
y_dsp_size: .byte ysize&0xff
|
||||
|
||||
/* Bits 7-4 Horizontal display size, mm, 4 msbits
|
||||
Bits 3-0 Vertical display size, mm, 4 msbits */
|
||||
dsp_size_mbsb: .byte msbs2(xsize,ysize)
|
||||
|
||||
/* Horizontal border pixels (each side; total is twice this) */
|
||||
x_border: .byte 0
|
||||
/* Vertical border lines (each side; total is twice this) */
|
||||
y_border: .byte 0
|
||||
|
||||
/* Bit 7 Interlaced
|
||||
Bits 6-5 Stereo mode: 00=No stereo; other values depend on bit 0:
|
||||
Bit 0=0: 01=Field sequential, sync=1 during right; 10=similar,
|
||||
sync=1 during left; 11=4-way interleaved stereo
|
||||
Bit 0=1 2-way interleaved stereo: 01=Right image on even lines;
|
||||
10=Left image on even lines; 11=side-by-side
|
||||
Bits 4-3 Sync type: 00=Analog composite; 01=Bipolar analog composite;
|
||||
10=Digital composite (on HSync); 11=Digital separate
|
||||
Bit 2 If digital separate: Vertical sync polarity (1=positive)
|
||||
Other types: VSync serrated (HSync during VSync)
|
||||
Bit 1 If analog sync: Sync on all 3 RGB lines (else green only)
|
||||
Digital: HSync polarity (1=positive)
|
||||
Bit 0 2-way line-interleaved stereo, if bits 4-3 are not 00. */
|
||||
features: .byte 0x18+(VSYNC_POL<<2)+(HSYNC_POL<<1)
|
||||
|
||||
descriptor2: .byte 0,0 /* Not a detailed timing descriptor */
|
||||
.byte 0 /* Must be zero */
|
||||
.byte 0xff /* Descriptor is monitor serial number (text) */
|
||||
.byte 0 /* Must be zero */
|
||||
start1: .ascii "Linux #0"
|
||||
end1: .byte 0x0a /* End marker */
|
||||
.fill 12-(end1-start1), 1, 0x20 /* Padded spaces */
|
||||
descriptor3: .byte 0,0 /* Not a detailed timing descriptor */
|
||||
.byte 0 /* Must be zero */
|
||||
.byte 0xfd /* Descriptor is monitor range limits */
|
||||
.byte 0 /* Must be zero */
|
||||
start2: .byte VFREQ-1 /* Minimum vertical field rate (1-255 Hz) */
|
||||
.byte VFREQ+1 /* Maximum vertical field rate (1-255 Hz) */
|
||||
.byte (CLOCK/(XPIX+XBLANK))-1 /* Minimum horizontal line rate
|
||||
(1-255 kHz) */
|
||||
.byte (CLOCK/(XPIX+XBLANK))+1 /* Maximum horizontal line rate
|
||||
(1-255 kHz) */
|
||||
.byte (CLOCK/10000)+1 /* Maximum pixel clock rate, rounded up
|
||||
to 10 MHz multiple (10-2550 MHz) */
|
||||
.byte 0 /* No extended timing information type */
|
||||
end2: .byte 0x0a /* End marker */
|
||||
.fill 12-(end2-start2), 1, 0x20 /* Padded spaces */
|
||||
descriptor4: .byte 0,0 /* Not a detailed timing descriptor */
|
||||
.byte 0 /* Must be zero */
|
||||
.byte 0xfc /* Descriptor is text */
|
||||
.byte 0 /* Must be zero */
|
||||
start3: .ascii TIMING_NAME
|
||||
end3: .byte 0x0a /* End marker */
|
||||
.fill 12-(end3-start3), 1, 0x20 /* Padded spaces */
|
||||
extensions: .byte 0 /* Number of extensions to follow */
|
||||
checksum: .byte CRC /* Sum of all bytes must be 0 */
|
||||
|
|
@ -1 +0,0 @@
|
|||
"\t" 8/1 "0x%02x, " "\n"
|
||||
Loading…
Reference in New Issue