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2014-12-17edid: initialize has_valid_detailed_blocks as 1Vince Hsu
In last clean-up commit, the detailed_blocks parsing has been merged to one for-loop and combining return values in each iteration instead of assignment. As a result, has_valid_detailed_blocks should now be initialized as 1. BRANCH=none BUG=none TEST=Tested AUO 1080p and InnoLux 720p panels on nyan_big Original-Change-Id: Ie4b6e25de63c0e216ae5de9bde20eed1fe3e59a6 Original-Signed-off-by: Vince Hsu <vinceh@nvidia.com> Original-Reviewed-on: https://chromium-review.googlesource.com/195803 Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org> Original-Commit-Queue: Hung-Te Lin <hungte@chromium.org> Original-Tested-by: Hung-Te Lin <hungte@chromium.org> (cherry picked from commit 21ac533d17c892c39532c263cc6ec15e4507ed3e) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I23111efb902c7e5994a4dbdfe77242c13ef5a70e Reviewed-on: http://review.coreboot.org/7835 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-12-17edid: Change static variables to auto variables.Hung-Te Lin
To support parsing multiple EDID blobs, the static "decode results" flags should be changed to auto variables inside decode_edid. This is done by packaging static variables into a structure inside decode_edid. We also revised some functions (manufacturer_name, do_checksum) to avoid accessing global variables directly. Extension (and detail block) parsing may need to access and return all parsed context so we pass the whole structure to it. BRANCH=none BUG=none TEST=emerge-nyan coreboot chromeos-bootimage # See EDID parsed correctly on Nyan. Original-Change-Id: Ieca93d446bacf655c145dffdfa6cc6f5dc87ac26 Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/195372 Original-Reviewed-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit ed45909df24c05a0cb8b2ff662fdd2d7a39012f0) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I17cdfa770181a6eaac9d1050d340c8e052572b4a Reviewed-on: http://review.coreboot.org/7834 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-12-16edid: remove float usePatrick Georgi
First, we don't want floats in our code base. Second, the calculation of the aspect ratio was wacky, using a value guaranteed to be 0 for aspect ratio calculation. While at it, define the aspect_* fields to be in tenths, to provide some additional resolution. They were like that already but we now also commit to that. Change-Id: I5511adf4bf76cdd6a69240491372f220ef1aa687 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: http://review.coreboot.org/7803 Reviewed-by: Marc Jones <marc.jones@se-eng.com> Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins)
2014-12-08edid: fill reserved bits fields in cb_framebufferPatrick Georgi
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>
2014-10-07edid: Relax EDID 1.3 requirements.Hung-Te Lin
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>
2014-10-01edid: Support EDID 1.4.Hung-Te Lin
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>
2014-10-01edid: Accept valid detail blocks without timing descriptor.Hung-Te Lin
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>
2014-10-01edid: Fix string extraction in Monitor Descriptors.Hung-Te Lin
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>
2014-10-01edid: Fix extension parsing when EDID blob does not have any extensions.Hung-Te Lin
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>
2014-10-01edid: Fix source indent.Hung-Te Lin
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>
2014-08-25intel/gma: Clarify code and use dedicated init for Google PeppyRonald G. Minnich
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)
2014-08-10src/lib/edid.c: missing break statementPatrick Georgi
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>
2014-02-21lib/edid: Don't set vbe_valid in decode_edid.Vladimir Serbinenko
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>
2014-02-19printk: support and use %hh prefixPatrick Georgi
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>
2013-12-21Pit: graphicsRonald G. Minnich
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>
2013-12-21Calculate transcoder flags based on pipe configFurquan Shaikh
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>
2013-12-21Added structure members x_mm and y_mm to edid decodingFurquan Shaikh
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>
2013-12-21FUI: Fill in link_m and link_n valuesFurquan Shaikh
... 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>
2013-12-12EDID: add fields specialized to the needs of framebuffersRonald G. Minnich
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>
2013-07-10FUI: reorganize include filesRonald G. Minnich
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>
2013-07-10Provide support for setting up the framebuffer from EDIDRonald G. Minnich
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>
2013-06-19edid: fix warningGerd Hoffmann
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>
2013-03-20link/graphics: Add support for EDIDRonald G. Minnich
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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