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If it's a 4 byte format (as per documentation), there
are some reserved bits, so let's mark them as such...
Change-Id: I50f12cfff2c9bb9d082a5f3c3ac54c0d514d862b
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/7674
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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In E-EDID (EDID v1.3), Monitor Name (0xfc) and Monitor Range Limits (0xfd) are
always required. However, some panels do not really have these fields. As a
workaround (and since we don't really use these fields), we only print warning
messages for that case.
Change-Id: I81b1db7d7f6c6f9320a862608dec4c7be298d7db
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193742
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit c633215ef8342664d9a4478e821fc8aad368b7f3)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/7009
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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EDID v1.4 has changed some fields (0xfc - Monitor Name, 0xfd - Monitor Range
Limits) to optional so we need to list the requirements explicitly instead of
sharing v1.3 requirements.
Change-Id: I5c7ca06893bd20e178bc35164c4ca639c881e00b
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193013
(cherry picked from commit 2ad598b8bd620117e70e13347365d74a7c6b87ef)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6998
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The detail block may contain timing descriptor, or other fields like monitor
descriptor, so we should return 1 in detailed_block function when a valid
structure is found, otherwise for any EDID containing monitor descriptor we will
see following error messages:
EDID block does not conform at all!
Detailed blocks filled with garbage
Change-Id: Ib4e91d648741e5b54a558d53a1152273c7341427
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193002
(cherry picked from commit a1f212d6aaa14d5f795beeabdb8b7b8a79578c33)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6997
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The ASCII Data String in EDID Monitor Descriptor (3.10.3) is "Stored as ASCII,
code page #437" and may contain special characters like '-'. The isalnum check
should be removed.
Also, the "Monitor Name" (0xfc) does not need to always end with 0Ah, so the
name_descriptor_terminated should be replaced by has_valid_string_termination.
Change-Id: I12a670237e12577fc971c0fbd9b2a61c82040ad3
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193001
(cherry picked from commit 671f82fd5963e32e72d3886aa242cb3e8519f226)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6996
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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When parsing "extensions", we should skip the first EDID (main) block and start
from offset 128 (EDID may have only main block, so an EDID without any
extension is fine) because the header format for main block and extensions are
different.
Without this we will see "Unknown extension block" on all EDIDs, and seeing an
error (1) return value for EDIDs without extension.
Also, after the first "unknown" error is fixed, we can now collect all return
values from parse_extension, and return an error when any of the extensions are
wrong (not just last one).
Change-Id: I0ee029ac8ec6800687cd7749e23989399e721109
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193011
(cherry picked from commit fdf0cc2e9573c19b550fa2b5e4e06337b114f864)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6995
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Some lines in decode_edid have incorrect indent levels.
Change-Id: Icc9cb57ff8dd2e2056599b3dc733fe5ac4e41c16
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193010
Reviewed-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 3211ac0a29a037c5414f9ed1736c8f7822ad116b)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6994
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Peppy had some issues with FUI. We decided it was time to create
peppy-specific gma.c and i915io.c files. Using yabel and the i915tool,
we generated a replay attack, then interpolated against the slippy
i915io.c to get something working.
Also, in preparation for moving code out of the mainboard gma.c to
generic driver code, we got rid of some hardcodes in the mainboard
gma.c that have no business being there. The worst were the
computation of gmch_[m,n] and it turns out that we had some
long-standing bugs related to confusion about 'bpp'. I've killed the
word bpp everywhere I could because there are at least 3 things that
correspond to bpp. We now have framebuffer, pipe, and panel bpp. The
names are long because I want to avoid all the mistakes we've all been
making in the last year :-) Sadly, that means a lot of changes not just
peppy-related, but they are simple and in a good cause.
The test pattern generation is driven by a global variable in
mainboard/peppy/gma.c. I've found in the past that it's very useful
to have a function like this available, as one can activate it while
using a jtag debugger: halt at the right place in ramstage, set the
variable to 1, continue. It's not enough code to worry about always
including.
The last hard-codes for M and N registers are gone, and the function
to set from generic intel_dp.c code works. To avoid screen trash on a
dev mode boot, which we liked but nobody else did :-), we now take the
time to put a pleasing background color that sort of doubles as a
power LED.
Rough timing is ramstage start is at 2.2, and dev setup is done at
3.3. These new platforms are depressingly slow to boot. Rom init alone
is taking 1.9 seconds. 13 years ago it was 3 seconds from power on to bash
prompt. These CPUs are at least 10x faster and take much longer to get going.
Future work, once we get this through, is to move more functions to the
intel driver, and combine the mainboard i915io.c into the mainboard gma.c.
That separation only existed because i915io.c was generated by a tool, and it
had lots of ugliness. Most ugliness is gone.
Old-Change-Id: I6a6295b423a41e263f82cef33eacb92a14163321
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://chromium-review.googlesource.com/170013
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Commit-Queue: Ronald Minnich <rminnich@chromium.org>
Tested-by: Ronald Minnich <rminnich@chromium.org>
Reviewed-by: Furquan Shaikh <furquan.m.shaikh@gmail.com>
(cherry picked from commit 8cdaf73e3602e15925859866714db4d5ec6c947d)
snow: Fix a typo in devicetree.cb that was breaking the snow build.
A typo in a recent change broke the snow build.
Old-Change-Id: I93074e68eb3d21510d974fd8e9c63b3947285afd
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/171014
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 154876c126a6690930141df178485658533096d2)
Squashed a fix into the initial patch and updated nehalem/gma.c
to have a non-static gtt_poll.
Change-Id: I2f4342c610d87335411da1d6d405171dc80c1f14
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6657
Tested-by: build bot (Jenkins)
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While vendor specific extension blocks are mostly opaque to us,
they're not exactly "unknown".
Change-Id: I9136c04d12045ad13ef4f942c0814c4df88bdf6b
Found-by: Coverity Scan
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/6563
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Decoding EDID doesn't yet mean that gfx mode is used.
Change-Id: Icedd36f26877754f34dd59233cce72271d7f0b19
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5269
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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clang complains otherwise.
Change-Id: I2ac98d7147ecd3d7064f17f8c9d214d44baedf97
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/4717
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
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This includes the new dp code, which is better, and the fimd code,
which is changed and improved. We took the chance to remove un-needed
files, and also to remove some foolish u-boot habits, but not all of
them. That will take time.
With these changes we get graphics.
Since the only mainboards we have with 16 bit graphics are 5:6:5,
adjust edid.c to just use that format. If at some future time we need
4:4:4, which seems unlikely, we'll need to add a function to adjust
the lb_framebuffer. Note that you can't just divine this from the EDID,
as the graphics pipe format need not match the actual final format used.
The EDID reading works. We've been requested to support hard-coded
EDIDs and that will come in the next revision. Currently the hard-coded
EDID is ignored for testing.
Change-Id: Ib4d06dc3388ab90c834f94808a51133e5b515a4d
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/64240
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Tested-by: Ronald G. Minnich <rminnich@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/4432
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Works fine with all three panels with the change of 6 bits per color.
Change-Id: Ia47d152e62d1879150d8cf9a6657b62007ef5c0e
Reviewed-on: https://gerrit.chromium.org/gerrit/63762
Reviewed-by: Ronald G. Minnich <rminnich@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/4402
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Change-Id: I9a628cec4da127a3f072d9611259dad99dfa9d29
Reviewed-on: https://gerrit.chromium.org/gerrit/63125
Reviewed-by: Ronald G. Minnich <rminnich@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/4382
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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... based on the EDID detailed timing values for
pixel_clock and link_clock.
Two undocumented registers 0x6f040 and 0x6f044 correspond to link_m and link_n
respectively. Other two undocumented registers 0x6f030 and 0x6f034 correspond
to data_m and data_n respectively.
Calculations are based on the intel_link_compute_m_n from linux kernel.
Currently, the value for 0x6f030 does not come up right with our calculations.
Hence, set to hard-coded value.
Change-Id: I40ff411729d0a61759164c3c1098504973f9cf5e
Reviewed-on: https://gerrit.chromium.org/gerrit/62915
Reviewed-by: Ronald G. Minnich <rminnich@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/4381
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Now that we have horizontal display areas that are not multiples of 32 bytes,
things are more complex. We add three struct members (x, y resolution and
bytes per line) which are to be filled in by the mainboard as it sets the mode.
In future, the EDID code may take a stab at initializing these but the values are
context-dependent.
Change-Id: Ib9102d6bbf8c66931f5adb1029a04b881a982cfe
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/60514
Tested-by: Ronald G. Minnich <rminnich@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Ronald G. Minnich <rminnich@chromium.org>
Reviewed-on: http://review.coreboot.org/4336
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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We've got enough of a handle on this to realize some things:
drm_dp_helper.h is by design device and architecture independent
i915.h is common to most intel graphics chipsets going back several years
i915_reg.h is as well
Move these files to src/include/device, and adjust the .c files accordingly.
Change-Id: I07512b3695fea0b22949074b467986420783d62a
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3637
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Add three functions to edid.c:
void set_vbe_mode_info_valid(struct edid *edid, uintptr_t fb_addr)
takes an edid and uintptr_t, and fills in a static lb_framebuffer struct
as well as setting the static vbe_valid to 1 unless some problem
is found in the edid. The intent here is that this could be called from
the native graphics setup code on both ARM and x86.
int vbe_mode_info_valid(void)
returns value of the static vbe_valid.
void fill_lb_framebuffer(struct lb_framebuffer *framebuffer)
copies the static edid_fb to lb_framebuffer.
There is now a common vbe.h in src/include, removed the two special ones.
In general, graphics in coreboot is a mess, but graphics is always a
mess. We don't have a clean way to try two different ways to turn on
a device and use the one that works. One battle at a time. Overall,
things are much better.
The best part: this code would also work for ARM, which also uses EDID.
Change-Id: Id23eb61498b331d44ab064b8fb4cb10f07cff7f3
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3636
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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src/lib/edid.c:1177: error: ‘y’ may be used uninitialized in this function
Warning is bogus, but seems my gcc (4.4.7 as shipped by RHEL-6)
isn't clever enougth to figure this on its own. So help a bit
by explicitly initializing the variable.
Change-Id: Ia9f966c9c0a6bd92a9f41f1a4a3c8e49f258be37
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3501
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This code is taken from an EDID reader written at Red Hat.
The key function is
int decode_edid(unsigned char *edid, int size, struct edid *out)
Which takes a pointer to an EDID blob, and a size, and decodes it into
a machine-independent format in out, which may be used for driving
chipsets. The EDID blob might come for IO, or a compiled-in EDID
BLOB, or CBFS.
Also included are the changes needed to use the EDID code on Link.
Change-Id: I66b275b8ed28fd77cfa5978bdec1eeef9e9425f1
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2837
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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