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c19b3b0f6e
When KMS has parsed an EDID "detailed timing", it leaves the frame rate zeroed. Consecutive (debug-) output of that mode thus yields 0 for vsync. This simple fix also speeds up future invocations of drm_mode_vrefresh(). While it is debatable whether this qualifies as a -stable fix I'd apply it for consistency's sake; drm_helper_probe_single_connector_modes() does the same thing already for all probed modes. Cc: stable@vger.kernel.org Signed-off-by: Torsten Duwe <duwe@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2893 lines
85 KiB
C
2893 lines
85 KiB
C
/*
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* Copyright (c) 2006 Luc Verhaegen (quirks list)
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* Copyright (c) 2007-2008 Intel Corporation
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* Jesse Barnes <jesse.barnes@intel.com>
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* Copyright 2010 Red Hat, Inc.
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*
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* DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
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* FB layer.
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* Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/hdmi.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <drm/drmP.h>
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#include <drm/drm_edid.h>
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#define version_greater(edid, maj, min) \
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(((edid)->version > (maj)) || \
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((edid)->version == (maj) && (edid)->revision > (min)))
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#define EDID_EST_TIMINGS 16
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#define EDID_STD_TIMINGS 8
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#define EDID_DETAILED_TIMINGS 4
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/*
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* EDID blocks out in the wild have a variety of bugs, try to collect
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* them here (note that userspace may work around broken monitors first,
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* but fixes should make their way here so that the kernel "just works"
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* on as many displays as possible).
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*/
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/* First detailed mode wrong, use largest 60Hz mode */
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#define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
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/* Reported 135MHz pixel clock is too high, needs adjustment */
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#define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
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/* Prefer the largest mode at 75 Hz */
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#define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
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/* Detail timing is in cm not mm */
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#define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
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/* Detailed timing descriptors have bogus size values, so just take the
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* maximum size and use that.
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*/
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#define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
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/* Monitor forgot to set the first detailed is preferred bit. */
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#define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
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/* use +hsync +vsync for detailed mode */
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#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
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/* Force reduced-blanking timings for detailed modes */
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#define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7)
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struct detailed_mode_closure {
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struct drm_connector *connector;
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struct edid *edid;
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bool preferred;
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u32 quirks;
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int modes;
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};
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#define LEVEL_DMT 0
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#define LEVEL_GTF 1
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#define LEVEL_GTF2 2
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#define LEVEL_CVT 3
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static struct edid_quirk {
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char vendor[4];
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int product_id;
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u32 quirks;
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} edid_quirk_list[] = {
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/* Acer AL1706 */
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{ "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
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/* Acer F51 */
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{ "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
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/* Unknown Acer */
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{ "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
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/* Belinea 10 15 55 */
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{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
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{ "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
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/* Envision Peripherals, Inc. EN-7100e */
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{ "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
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/* Envision EN2028 */
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{ "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
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/* Funai Electronics PM36B */
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{ "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
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EDID_QUIRK_DETAILED_IN_CM },
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/* LG Philips LCD LP154W01-A5 */
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{ "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
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{ "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
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/* Philips 107p5 CRT */
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{ "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
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/* Proview AY765C */
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{ "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
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/* Samsung SyncMaster 205BW. Note: irony */
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{ "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
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/* Samsung SyncMaster 22[5-6]BW */
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{ "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
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{ "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
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/* ViewSonic VA2026w */
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{ "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
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};
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/*
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* Autogenerated from the DMT spec.
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* This table is copied from xfree86/modes/xf86EdidModes.c.
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*/
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static const struct drm_display_mode drm_dmt_modes[] = {
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/* 640x350@85Hz */
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{ DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
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736, 832, 0, 350, 382, 385, 445, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 640x400@85Hz */
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{ DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
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736, 832, 0, 400, 401, 404, 445, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 720x400@85Hz */
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{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
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828, 936, 0, 400, 401, 404, 446, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 640x480@60Hz */
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{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
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752, 800, 0, 480, 489, 492, 525, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 640x480@72Hz */
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{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
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704, 832, 0, 480, 489, 492, 520, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 640x480@75Hz */
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{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
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720, 840, 0, 480, 481, 484, 500, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 640x480@85Hz */
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{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
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752, 832, 0, 480, 481, 484, 509, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 800x600@56Hz */
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{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
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896, 1024, 0, 600, 601, 603, 625, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 800x600@60Hz */
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{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
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968, 1056, 0, 600, 601, 605, 628, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 800x600@72Hz */
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{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
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976, 1040, 0, 600, 637, 643, 666, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 800x600@75Hz */
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{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
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896, 1056, 0, 600, 601, 604, 625, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 800x600@85Hz */
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{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
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896, 1048, 0, 600, 601, 604, 631, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 800x600@120Hz RB */
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{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
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880, 960, 0, 600, 603, 607, 636, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 848x480@60Hz */
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{ DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
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976, 1088, 0, 480, 486, 494, 517, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1024x768@43Hz, interlace */
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{ DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
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1208, 1264, 0, 768, 768, 772, 817, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
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DRM_MODE_FLAG_INTERLACE) },
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/* 1024x768@60Hz */
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{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
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1184, 1344, 0, 768, 771, 777, 806, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1024x768@70Hz */
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{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
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1184, 1328, 0, 768, 771, 777, 806, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1024x768@75Hz */
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{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
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1136, 1312, 0, 768, 769, 772, 800, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1024x768@85Hz */
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{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
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1168, 1376, 0, 768, 769, 772, 808, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1024x768@120Hz RB */
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{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
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1104, 1184, 0, 768, 771, 775, 813, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1152x864@75Hz */
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{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
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1344, 1600, 0, 864, 865, 868, 900, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x768@60Hz RB */
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{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
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1360, 1440, 0, 768, 771, 778, 790, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1280x768@60Hz */
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{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
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1472, 1664, 0, 768, 771, 778, 798, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x768@75Hz */
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{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
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1488, 1696, 0, 768, 771, 778, 805, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1280x768@85Hz */
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{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
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1496, 1712, 0, 768, 771, 778, 809, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x768@120Hz RB */
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{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
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1360, 1440, 0, 768, 771, 778, 813, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1280x800@60Hz RB */
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{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
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1360, 1440, 0, 800, 803, 809, 823, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1280x800@60Hz */
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{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
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1480, 1680, 0, 800, 803, 809, 831, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1280x800@75Hz */
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{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
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1488, 1696, 0, 800, 803, 809, 838, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x800@85Hz */
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{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
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1496, 1712, 0, 800, 803, 809, 843, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x800@120Hz RB */
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{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
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1360, 1440, 0, 800, 803, 809, 847, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1280x960@60Hz */
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{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
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1488, 1800, 0, 960, 961, 964, 1000, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x960@85Hz */
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{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
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1504, 1728, 0, 960, 961, 964, 1011, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x960@120Hz RB */
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{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
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1360, 1440, 0, 960, 963, 967, 1017, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1280x1024@60Hz */
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{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
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1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x1024@75Hz */
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{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
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1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x1024@85Hz */
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{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
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1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1280x1024@120Hz RB */
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{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
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1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1360x768@60Hz */
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{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
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1536, 1792, 0, 768, 771, 777, 795, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1360x768@120Hz RB */
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{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
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1440, 1520, 0, 768, 771, 776, 813, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1400x1050@60Hz RB */
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{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
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1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1400x1050@60Hz */
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{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
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1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1400x1050@75Hz */
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{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
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1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1400x1050@85Hz */
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{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
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1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1400x1050@120Hz RB */
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{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
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1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1440x900@60Hz RB */
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{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
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1520, 1600, 0, 900, 903, 909, 926, 0,
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DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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/* 1440x900@60Hz */
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{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
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1672, 1904, 0, 900, 903, 909, 934, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1440x900@75Hz */
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{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
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1688, 1936, 0, 900, 903, 909, 942, 0,
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DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
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/* 1440x900@85Hz */
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{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
|
|
1696, 1952, 0, 900, 903, 909, 948, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1440x900@120Hz RB */
|
|
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
|
|
1520, 1600, 0, 900, 903, 909, 953, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1600x1200@60Hz */
|
|
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
|
|
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1600x1200@65Hz */
|
|
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
|
|
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1600x1200@70Hz */
|
|
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
|
|
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1600x1200@75Hz */
|
|
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
|
|
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1600x1200@85Hz */
|
|
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
|
|
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1600x1200@120Hz RB */
|
|
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
|
|
1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1680x1050@60Hz RB */
|
|
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
|
|
1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1680x1050@60Hz */
|
|
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
|
|
1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1680x1050@75Hz */
|
|
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
|
|
1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1680x1050@85Hz */
|
|
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
|
|
1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1680x1050@120Hz RB */
|
|
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
|
|
1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1792x1344@60Hz */
|
|
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
|
|
2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1792x1344@75Hz */
|
|
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
|
|
2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1792x1344@120Hz RB */
|
|
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
|
|
1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1856x1392@60Hz */
|
|
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
|
|
2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1856x1392@75Hz */
|
|
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
|
|
2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1856x1392@120Hz RB */
|
|
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
|
|
1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1920x1200@60Hz RB */
|
|
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
|
|
2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1920x1200@60Hz */
|
|
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
|
|
2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1920x1200@75Hz */
|
|
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
|
|
2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1920x1200@85Hz */
|
|
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
|
|
2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1920x1200@120Hz RB */
|
|
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
|
|
2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 1920x1440@60Hz */
|
|
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
|
|
2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1920x1440@75Hz */
|
|
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
|
|
2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 1920x1440@120Hz RB */
|
|
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
|
|
2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 2560x1600@60Hz RB */
|
|
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
|
|
2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 2560x1600@60Hz */
|
|
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
|
|
3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 2560x1600@75HZ */
|
|
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
|
|
3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 2560x1600@85HZ */
|
|
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
|
|
3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 2560x1600@120Hz RB */
|
|
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
|
|
2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
};
|
|
|
|
static const struct drm_display_mode edid_est_modes[] = {
|
|
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
|
|
968, 1056, 0, 600, 601, 605, 628, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
|
|
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
|
|
896, 1024, 0, 600, 601, 603, 625, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
|
|
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
|
|
720, 840, 0, 480, 481, 484, 500, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
|
|
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
|
|
704, 832, 0, 480, 489, 491, 520, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
|
|
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
|
|
768, 864, 0, 480, 483, 486, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
|
|
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
|
|
752, 800, 0, 480, 490, 492, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
|
|
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
|
|
846, 900, 0, 400, 421, 423, 449, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
|
|
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
|
|
846, 900, 0, 400, 412, 414, 449, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
|
|
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
|
|
1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
|
|
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
|
|
1136, 1312, 0, 768, 769, 772, 800, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
|
|
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
|
|
1184, 1328, 0, 768, 771, 777, 806, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
|
|
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
|
|
1184, 1344, 0, 768, 771, 777, 806, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
|
|
{ DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
|
|
1208, 1264, 0, 768, 768, 776, 817, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
|
|
{ DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
|
|
928, 1152, 0, 624, 625, 628, 667, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
|
|
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
|
|
896, 1056, 0, 600, 601, 604, 625, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
|
|
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
|
|
976, 1040, 0, 600, 637, 643, 666, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
|
|
{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
|
|
1344, 1600, 0, 864, 865, 868, 900, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
|
|
};
|
|
|
|
struct minimode {
|
|
short w;
|
|
short h;
|
|
short r;
|
|
short rb;
|
|
};
|
|
|
|
static const struct minimode est3_modes[] = {
|
|
/* byte 6 */
|
|
{ 640, 350, 85, 0 },
|
|
{ 640, 400, 85, 0 },
|
|
{ 720, 400, 85, 0 },
|
|
{ 640, 480, 85, 0 },
|
|
{ 848, 480, 60, 0 },
|
|
{ 800, 600, 85, 0 },
|
|
{ 1024, 768, 85, 0 },
|
|
{ 1152, 864, 75, 0 },
|
|
/* byte 7 */
|
|
{ 1280, 768, 60, 1 },
|
|
{ 1280, 768, 60, 0 },
|
|
{ 1280, 768, 75, 0 },
|
|
{ 1280, 768, 85, 0 },
|
|
{ 1280, 960, 60, 0 },
|
|
{ 1280, 960, 85, 0 },
|
|
{ 1280, 1024, 60, 0 },
|
|
{ 1280, 1024, 85, 0 },
|
|
/* byte 8 */
|
|
{ 1360, 768, 60, 0 },
|
|
{ 1440, 900, 60, 1 },
|
|
{ 1440, 900, 60, 0 },
|
|
{ 1440, 900, 75, 0 },
|
|
{ 1440, 900, 85, 0 },
|
|
{ 1400, 1050, 60, 1 },
|
|
{ 1400, 1050, 60, 0 },
|
|
{ 1400, 1050, 75, 0 },
|
|
/* byte 9 */
|
|
{ 1400, 1050, 85, 0 },
|
|
{ 1680, 1050, 60, 1 },
|
|
{ 1680, 1050, 60, 0 },
|
|
{ 1680, 1050, 75, 0 },
|
|
{ 1680, 1050, 85, 0 },
|
|
{ 1600, 1200, 60, 0 },
|
|
{ 1600, 1200, 65, 0 },
|
|
{ 1600, 1200, 70, 0 },
|
|
/* byte 10 */
|
|
{ 1600, 1200, 75, 0 },
|
|
{ 1600, 1200, 85, 0 },
|
|
{ 1792, 1344, 60, 0 },
|
|
{ 1792, 1344, 85, 0 },
|
|
{ 1856, 1392, 60, 0 },
|
|
{ 1856, 1392, 75, 0 },
|
|
{ 1920, 1200, 60, 1 },
|
|
{ 1920, 1200, 60, 0 },
|
|
/* byte 11 */
|
|
{ 1920, 1200, 75, 0 },
|
|
{ 1920, 1200, 85, 0 },
|
|
{ 1920, 1440, 60, 0 },
|
|
{ 1920, 1440, 75, 0 },
|
|
};
|
|
|
|
static const struct minimode extra_modes[] = {
|
|
{ 1024, 576, 60, 0 },
|
|
{ 1366, 768, 60, 0 },
|
|
{ 1600, 900, 60, 0 },
|
|
{ 1680, 945, 60, 0 },
|
|
{ 1920, 1080, 60, 0 },
|
|
{ 2048, 1152, 60, 0 },
|
|
{ 2048, 1536, 60, 0 },
|
|
};
|
|
|
|
/*
|
|
* Probably taken from CEA-861 spec.
|
|
* This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c.
|
|
*/
|
|
static const struct drm_display_mode edid_cea_modes[] = {
|
|
/* 1 - 640x480@60Hz */
|
|
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
|
|
752, 800, 0, 480, 490, 492, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 2 - 720x480@60Hz */
|
|
{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
|
|
798, 858, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 3 - 720x480@60Hz */
|
|
{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
|
|
798, 858, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 4 - 1280x720@60Hz */
|
|
{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
|
|
1430, 1650, 0, 720, 725, 730, 750, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 5 - 1920x1080i@60Hz */
|
|
{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
|
|
2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 6 - 1440x480i@60Hz */
|
|
{ DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
|
|
1602, 1716, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 7 - 1440x480i@60Hz */
|
|
{ DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
|
|
1602, 1716, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 8 - 1440x240@60Hz */
|
|
{ DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
|
|
1602, 1716, 0, 240, 244, 247, 262, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_DBLCLK) },
|
|
/* 9 - 1440x240@60Hz */
|
|
{ DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
|
|
1602, 1716, 0, 240, 244, 247, 262, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_DBLCLK) },
|
|
/* 10 - 2880x480i@60Hz */
|
|
{ DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
|
|
3204, 3432, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 11 - 2880x480i@60Hz */
|
|
{ DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
|
|
3204, 3432, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 12 - 2880x240@60Hz */
|
|
{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
|
|
3204, 3432, 0, 240, 244, 247, 262, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 13 - 2880x240@60Hz */
|
|
{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
|
|
3204, 3432, 0, 240, 244, 247, 262, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 14 - 1440x480@60Hz */
|
|
{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
|
|
1596, 1716, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 15 - 1440x480@60Hz */
|
|
{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
|
|
1596, 1716, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 16 - 1920x1080@60Hz */
|
|
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
|
|
2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 17 - 720x576@50Hz */
|
|
{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
|
|
796, 864, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 18 - 720x576@50Hz */
|
|
{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
|
|
796, 864, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 19 - 1280x720@50Hz */
|
|
{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
|
|
1760, 1980, 0, 720, 725, 730, 750, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 20 - 1920x1080i@50Hz */
|
|
{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
|
|
2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 21 - 1440x576i@50Hz */
|
|
{ DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
|
|
1590, 1728, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 22 - 1440x576i@50Hz */
|
|
{ DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
|
|
1590, 1728, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 23 - 1440x288@50Hz */
|
|
{ DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
|
|
1590, 1728, 0, 288, 290, 293, 312, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_DBLCLK) },
|
|
/* 24 - 1440x288@50Hz */
|
|
{ DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
|
|
1590, 1728, 0, 288, 290, 293, 312, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_DBLCLK) },
|
|
/* 25 - 2880x576i@50Hz */
|
|
{ DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
|
|
3180, 3456, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 26 - 2880x576i@50Hz */
|
|
{ DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
|
|
3180, 3456, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 27 - 2880x288@50Hz */
|
|
{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
|
|
3180, 3456, 0, 288, 290, 293, 312, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 28 - 2880x288@50Hz */
|
|
{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
|
|
3180, 3456, 0, 288, 290, 293, 312, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 29 - 1440x576@50Hz */
|
|
{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
|
|
1592, 1728, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 30 - 1440x576@50Hz */
|
|
{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
|
|
1592, 1728, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 31 - 1920x1080@50Hz */
|
|
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
|
|
2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 32 - 1920x1080@24Hz */
|
|
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
|
|
2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 33 - 1920x1080@25Hz */
|
|
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
|
|
2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 34 - 1920x1080@30Hz */
|
|
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
|
|
2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 35 - 2880x480@60Hz */
|
|
{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
|
|
3192, 3432, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 36 - 2880x480@60Hz */
|
|
{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
|
|
3192, 3432, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 37 - 2880x576@50Hz */
|
|
{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
|
|
3184, 3456, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 38 - 2880x576@50Hz */
|
|
{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
|
|
3184, 3456, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 39 - 1920x1080i@50Hz */
|
|
{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
|
|
2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 40 - 1920x1080i@100Hz */
|
|
{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
|
|
2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 41 - 1280x720@100Hz */
|
|
{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
|
|
1760, 1980, 0, 720, 725, 730, 750, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 42 - 720x576@100Hz */
|
|
{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
|
|
796, 864, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 43 - 720x576@100Hz */
|
|
{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
|
|
796, 864, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 44 - 1440x576i@100Hz */
|
|
{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
|
|
1590, 1728, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_DBLCLK) },
|
|
/* 45 - 1440x576i@100Hz */
|
|
{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
|
|
1590, 1728, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_DBLCLK) },
|
|
/* 46 - 1920x1080i@120Hz */
|
|
{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
|
|
2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE) },
|
|
/* 47 - 1280x720@120Hz */
|
|
{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
|
|
1430, 1650, 0, 720, 725, 730, 750, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 48 - 720x480@120Hz */
|
|
{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
|
|
798, 858, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 49 - 720x480@120Hz */
|
|
{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
|
|
798, 858, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 50 - 1440x480i@120Hz */
|
|
{ DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1478,
|
|
1602, 1716, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 51 - 1440x480i@120Hz */
|
|
{ DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1478,
|
|
1602, 1716, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 52 - 720x576@200Hz */
|
|
{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
|
|
796, 864, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 53 - 720x576@200Hz */
|
|
{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
|
|
796, 864, 0, 576, 581, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 54 - 1440x576i@200Hz */
|
|
{ DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1464,
|
|
1590, 1728, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 55 - 1440x576i@200Hz */
|
|
{ DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1464,
|
|
1590, 1728, 0, 576, 580, 586, 625, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 56 - 720x480@240Hz */
|
|
{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
|
|
798, 858, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 57 - 720x480@240Hz */
|
|
{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
|
|
798, 858, 0, 480, 489, 495, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
|
|
/* 58 - 1440x480i@240 */
|
|
{ DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1478,
|
|
1602, 1716, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 59 - 1440x480i@240 */
|
|
{ DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1478,
|
|
1602, 1716, 0, 480, 488, 494, 525, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
|
|
DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
|
|
/* 60 - 1280x720@24Hz */
|
|
{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
|
|
3080, 3300, 0, 720, 725, 730, 750, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 61 - 1280x720@25Hz */
|
|
{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
|
|
3740, 3960, 0, 720, 725, 730, 750, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 62 - 1280x720@30Hz */
|
|
{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
|
|
3080, 3300, 0, 720, 725, 730, 750, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 63 - 1920x1080@120Hz */
|
|
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
|
|
2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
/* 64 - 1920x1080@100Hz */
|
|
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
|
|
2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
|
|
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
|
|
};
|
|
|
|
/*** DDC fetch and block validation ***/
|
|
|
|
static const u8 edid_header[] = {
|
|
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
|
|
};
|
|
|
|
/*
|
|
* Sanity check the header of the base EDID block. Return 8 if the header
|
|
* is perfect, down to 0 if it's totally wrong.
|
|
*/
|
|
int drm_edid_header_is_valid(const u8 *raw_edid)
|
|
{
|
|
int i, score = 0;
|
|
|
|
for (i = 0; i < sizeof(edid_header); i++)
|
|
if (raw_edid[i] == edid_header[i])
|
|
score++;
|
|
|
|
return score;
|
|
}
|
|
EXPORT_SYMBOL(drm_edid_header_is_valid);
|
|
|
|
static int edid_fixup __read_mostly = 6;
|
|
module_param_named(edid_fixup, edid_fixup, int, 0400);
|
|
MODULE_PARM_DESC(edid_fixup,
|
|
"Minimum number of valid EDID header bytes (0-8, default 6)");
|
|
|
|
/*
|
|
* Sanity check the EDID block (base or extension). Return 0 if the block
|
|
* doesn't check out, or 1 if it's valid.
|
|
*/
|
|
bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
|
|
{
|
|
int i;
|
|
u8 csum = 0;
|
|
struct edid *edid = (struct edid *)raw_edid;
|
|
|
|
if (edid_fixup > 8 || edid_fixup < 0)
|
|
edid_fixup = 6;
|
|
|
|
if (block == 0) {
|
|
int score = drm_edid_header_is_valid(raw_edid);
|
|
if (score == 8) ;
|
|
else if (score >= edid_fixup) {
|
|
DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
|
|
memcpy(raw_edid, edid_header, sizeof(edid_header));
|
|
} else {
|
|
goto bad;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < EDID_LENGTH; i++)
|
|
csum += raw_edid[i];
|
|
if (csum) {
|
|
if (print_bad_edid) {
|
|
DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
|
|
}
|
|
|
|
/* allow CEA to slide through, switches mangle this */
|
|
if (raw_edid[0] != 0x02)
|
|
goto bad;
|
|
}
|
|
|
|
/* per-block-type checks */
|
|
switch (raw_edid[0]) {
|
|
case 0: /* base */
|
|
if (edid->version != 1) {
|
|
DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
|
|
goto bad;
|
|
}
|
|
|
|
if (edid->revision > 4)
|
|
DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
|
|
bad:
|
|
if (raw_edid && print_bad_edid) {
|
|
printk(KERN_ERR "Raw EDID:\n");
|
|
print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
|
|
raw_edid, EDID_LENGTH, false);
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(drm_edid_block_valid);
|
|
|
|
/**
|
|
* drm_edid_is_valid - sanity check EDID data
|
|
* @edid: EDID data
|
|
*
|
|
* Sanity-check an entire EDID record (including extensions)
|
|
*/
|
|
bool drm_edid_is_valid(struct edid *edid)
|
|
{
|
|
int i;
|
|
u8 *raw = (u8 *)edid;
|
|
|
|
if (!edid)
|
|
return false;
|
|
|
|
for (i = 0; i <= edid->extensions; i++)
|
|
if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
EXPORT_SYMBOL(drm_edid_is_valid);
|
|
|
|
#define DDC_SEGMENT_ADDR 0x30
|
|
/**
|
|
* Get EDID information via I2C.
|
|
*
|
|
* \param adapter : i2c device adaptor
|
|
* \param buf : EDID data buffer to be filled
|
|
* \param len : EDID data buffer length
|
|
* \return 0 on success or -1 on failure.
|
|
*
|
|
* Try to fetch EDID information by calling i2c driver function.
|
|
*/
|
|
static int
|
|
drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
|
|
int block, int len)
|
|
{
|
|
unsigned char start = block * EDID_LENGTH;
|
|
unsigned char segment = block >> 1;
|
|
unsigned char xfers = segment ? 3 : 2;
|
|
int ret, retries = 5;
|
|
|
|
/* The core i2c driver will automatically retry the transfer if the
|
|
* adapter reports EAGAIN. However, we find that bit-banging transfers
|
|
* are susceptible to errors under a heavily loaded machine and
|
|
* generate spurious NAKs and timeouts. Retrying the transfer
|
|
* of the individual block a few times seems to overcome this.
|
|
*/
|
|
do {
|
|
struct i2c_msg msgs[] = {
|
|
{
|
|
.addr = DDC_SEGMENT_ADDR,
|
|
.flags = 0,
|
|
.len = 1,
|
|
.buf = &segment,
|
|
}, {
|
|
.addr = DDC_ADDR,
|
|
.flags = 0,
|
|
.len = 1,
|
|
.buf = &start,
|
|
}, {
|
|
.addr = DDC_ADDR,
|
|
.flags = I2C_M_RD,
|
|
.len = len,
|
|
.buf = buf,
|
|
}
|
|
};
|
|
|
|
/*
|
|
* Avoid sending the segment addr to not upset non-compliant ddc
|
|
* monitors.
|
|
*/
|
|
ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
|
|
|
|
if (ret == -ENXIO) {
|
|
DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
|
|
adapter->name);
|
|
break;
|
|
}
|
|
} while (ret != xfers && --retries);
|
|
|
|
return ret == xfers ? 0 : -1;
|
|
}
|
|
|
|
static bool drm_edid_is_zero(u8 *in_edid, int length)
|
|
{
|
|
if (memchr_inv(in_edid, 0, length))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static u8 *
|
|
drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
|
|
{
|
|
int i, j = 0, valid_extensions = 0;
|
|
u8 *block, *new;
|
|
bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
|
|
|
|
if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
|
|
return NULL;
|
|
|
|
/* base block fetch */
|
|
for (i = 0; i < 4; i++) {
|
|
if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH))
|
|
goto out;
|
|
if (drm_edid_block_valid(block, 0, print_bad_edid))
|
|
break;
|
|
if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) {
|
|
connector->null_edid_counter++;
|
|
goto carp;
|
|
}
|
|
}
|
|
if (i == 4)
|
|
goto carp;
|
|
|
|
/* if there's no extensions, we're done */
|
|
if (block[0x7e] == 0)
|
|
return block;
|
|
|
|
new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL);
|
|
if (!new)
|
|
goto out;
|
|
block = new;
|
|
|
|
for (j = 1; j <= block[0x7e]; j++) {
|
|
for (i = 0; i < 4; i++) {
|
|
if (drm_do_probe_ddc_edid(adapter,
|
|
block + (valid_extensions + 1) * EDID_LENGTH,
|
|
j, EDID_LENGTH))
|
|
goto out;
|
|
if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j, print_bad_edid)) {
|
|
valid_extensions++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == 4 && print_bad_edid) {
|
|
dev_warn(connector->dev->dev,
|
|
"%s: Ignoring invalid EDID block %d.\n",
|
|
drm_get_connector_name(connector), j);
|
|
|
|
connector->bad_edid_counter++;
|
|
}
|
|
}
|
|
|
|
if (valid_extensions != block[0x7e]) {
|
|
block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;
|
|
block[0x7e] = valid_extensions;
|
|
new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
|
|
if (!new)
|
|
goto out;
|
|
block = new;
|
|
}
|
|
|
|
return block;
|
|
|
|
carp:
|
|
if (print_bad_edid) {
|
|
dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
|
|
drm_get_connector_name(connector), j);
|
|
}
|
|
connector->bad_edid_counter++;
|
|
|
|
out:
|
|
kfree(block);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Probe DDC presence.
|
|
*
|
|
* \param adapter : i2c device adaptor
|
|
* \return 1 on success
|
|
*/
|
|
bool
|
|
drm_probe_ddc(struct i2c_adapter *adapter)
|
|
{
|
|
unsigned char out;
|
|
|
|
return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
|
|
}
|
|
EXPORT_SYMBOL(drm_probe_ddc);
|
|
|
|
/**
|
|
* drm_get_edid - get EDID data, if available
|
|
* @connector: connector we're probing
|
|
* @adapter: i2c adapter to use for DDC
|
|
*
|
|
* Poke the given i2c channel to grab EDID data if possible. If found,
|
|
* attach it to the connector.
|
|
*
|
|
* Return edid data or NULL if we couldn't find any.
|
|
*/
|
|
struct edid *drm_get_edid(struct drm_connector *connector,
|
|
struct i2c_adapter *adapter)
|
|
{
|
|
struct edid *edid = NULL;
|
|
|
|
if (drm_probe_ddc(adapter))
|
|
edid = (struct edid *)drm_do_get_edid(connector, adapter);
|
|
|
|
return edid;
|
|
}
|
|
EXPORT_SYMBOL(drm_get_edid);
|
|
|
|
/*** EDID parsing ***/
|
|
|
|
/**
|
|
* edid_vendor - match a string against EDID's obfuscated vendor field
|
|
* @edid: EDID to match
|
|
* @vendor: vendor string
|
|
*
|
|
* Returns true if @vendor is in @edid, false otherwise
|
|
*/
|
|
static bool edid_vendor(struct edid *edid, char *vendor)
|
|
{
|
|
char edid_vendor[3];
|
|
|
|
edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
|
|
edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
|
|
((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
|
|
edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
|
|
|
|
return !strncmp(edid_vendor, vendor, 3);
|
|
}
|
|
|
|
/**
|
|
* edid_get_quirks - return quirk flags for a given EDID
|
|
* @edid: EDID to process
|
|
*
|
|
* This tells subsequent routines what fixes they need to apply.
|
|
*/
|
|
static u32 edid_get_quirks(struct edid *edid)
|
|
{
|
|
struct edid_quirk *quirk;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
|
|
quirk = &edid_quirk_list[i];
|
|
|
|
if (edid_vendor(edid, quirk->vendor) &&
|
|
(EDID_PRODUCT_ID(edid) == quirk->product_id))
|
|
return quirk->quirks;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
|
|
#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh))
|
|
|
|
/**
|
|
* edid_fixup_preferred - set preferred modes based on quirk list
|
|
* @connector: has mode list to fix up
|
|
* @quirks: quirks list
|
|
*
|
|
* Walk the mode list for @connector, clearing the preferred status
|
|
* on existing modes and setting it anew for the right mode ala @quirks.
|
|
*/
|
|
static void edid_fixup_preferred(struct drm_connector *connector,
|
|
u32 quirks)
|
|
{
|
|
struct drm_display_mode *t, *cur_mode, *preferred_mode;
|
|
int target_refresh = 0;
|
|
|
|
if (list_empty(&connector->probed_modes))
|
|
return;
|
|
|
|
if (quirks & EDID_QUIRK_PREFER_LARGE_60)
|
|
target_refresh = 60;
|
|
if (quirks & EDID_QUIRK_PREFER_LARGE_75)
|
|
target_refresh = 75;
|
|
|
|
preferred_mode = list_first_entry(&connector->probed_modes,
|
|
struct drm_display_mode, head);
|
|
|
|
list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
|
|
cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
|
|
|
|
if (cur_mode == preferred_mode)
|
|
continue;
|
|
|
|
/* Largest mode is preferred */
|
|
if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
|
|
preferred_mode = cur_mode;
|
|
|
|
/* At a given size, try to get closest to target refresh */
|
|
if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
|
|
MODE_REFRESH_DIFF(cur_mode, target_refresh) <
|
|
MODE_REFRESH_DIFF(preferred_mode, target_refresh)) {
|
|
preferred_mode = cur_mode;
|
|
}
|
|
}
|
|
|
|
preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
|
|
}
|
|
|
|
static bool
|
|
mode_is_rb(const struct drm_display_mode *mode)
|
|
{
|
|
return (mode->htotal - mode->hdisplay == 160) &&
|
|
(mode->hsync_end - mode->hdisplay == 80) &&
|
|
(mode->hsync_end - mode->hsync_start == 32) &&
|
|
(mode->vsync_start - mode->vdisplay == 3);
|
|
}
|
|
|
|
/*
|
|
* drm_mode_find_dmt - Create a copy of a mode if present in DMT
|
|
* @dev: Device to duplicate against
|
|
* @hsize: Mode width
|
|
* @vsize: Mode height
|
|
* @fresh: Mode refresh rate
|
|
* @rb: Mode reduced-blanking-ness
|
|
*
|
|
* Walk the DMT mode list looking for a match for the given parameters.
|
|
* Return a newly allocated copy of the mode, or NULL if not found.
|
|
*/
|
|
struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
|
|
int hsize, int vsize, int fresh,
|
|
bool rb)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
|
|
const struct drm_display_mode *ptr = &drm_dmt_modes[i];
|
|
if (hsize != ptr->hdisplay)
|
|
continue;
|
|
if (vsize != ptr->vdisplay)
|
|
continue;
|
|
if (fresh != drm_mode_vrefresh(ptr))
|
|
continue;
|
|
if (rb != mode_is_rb(ptr))
|
|
continue;
|
|
|
|
return drm_mode_duplicate(dev, ptr);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(drm_mode_find_dmt);
|
|
|
|
typedef void detailed_cb(struct detailed_timing *timing, void *closure);
|
|
|
|
static void
|
|
cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
|
|
{
|
|
int i, n = 0;
|
|
u8 d = ext[0x02];
|
|
u8 *det_base = ext + d;
|
|
|
|
n = (127 - d) / 18;
|
|
for (i = 0; i < n; i++)
|
|
cb((struct detailed_timing *)(det_base + 18 * i), closure);
|
|
}
|
|
|
|
static void
|
|
vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
|
|
{
|
|
unsigned int i, n = min((int)ext[0x02], 6);
|
|
u8 *det_base = ext + 5;
|
|
|
|
if (ext[0x01] != 1)
|
|
return; /* unknown version */
|
|
|
|
for (i = 0; i < n; i++)
|
|
cb((struct detailed_timing *)(det_base + 18 * i), closure);
|
|
}
|
|
|
|
static void
|
|
drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure)
|
|
{
|
|
int i;
|
|
struct edid *edid = (struct edid *)raw_edid;
|
|
|
|
if (edid == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
|
|
cb(&(edid->detailed_timings[i]), closure);
|
|
|
|
for (i = 1; i <= raw_edid[0x7e]; i++) {
|
|
u8 *ext = raw_edid + (i * EDID_LENGTH);
|
|
switch (*ext) {
|
|
case CEA_EXT:
|
|
cea_for_each_detailed_block(ext, cb, closure);
|
|
break;
|
|
case VTB_EXT:
|
|
vtb_for_each_detailed_block(ext, cb, closure);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
is_rb(struct detailed_timing *t, void *data)
|
|
{
|
|
u8 *r = (u8 *)t;
|
|
if (r[3] == EDID_DETAIL_MONITOR_RANGE)
|
|
if (r[15] & 0x10)
|
|
*(bool *)data = true;
|
|
}
|
|
|
|
/* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
|
|
static bool
|
|
drm_monitor_supports_rb(struct edid *edid)
|
|
{
|
|
if (edid->revision >= 4) {
|
|
bool ret = false;
|
|
drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
|
|
return ret;
|
|
}
|
|
|
|
return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
|
|
}
|
|
|
|
static void
|
|
find_gtf2(struct detailed_timing *t, void *data)
|
|
{
|
|
u8 *r = (u8 *)t;
|
|
if (r[3] == EDID_DETAIL_MONITOR_RANGE && r[10] == 0x02)
|
|
*(u8 **)data = r;
|
|
}
|
|
|
|
/* Secondary GTF curve kicks in above some break frequency */
|
|
static int
|
|
drm_gtf2_hbreak(struct edid *edid)
|
|
{
|
|
u8 *r = NULL;
|
|
drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
|
|
return r ? (r[12] * 2) : 0;
|
|
}
|
|
|
|
static int
|
|
drm_gtf2_2c(struct edid *edid)
|
|
{
|
|
u8 *r = NULL;
|
|
drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
|
|
return r ? r[13] : 0;
|
|
}
|
|
|
|
static int
|
|
drm_gtf2_m(struct edid *edid)
|
|
{
|
|
u8 *r = NULL;
|
|
drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
|
|
return r ? (r[15] << 8) + r[14] : 0;
|
|
}
|
|
|
|
static int
|
|
drm_gtf2_k(struct edid *edid)
|
|
{
|
|
u8 *r = NULL;
|
|
drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
|
|
return r ? r[16] : 0;
|
|
}
|
|
|
|
static int
|
|
drm_gtf2_2j(struct edid *edid)
|
|
{
|
|
u8 *r = NULL;
|
|
drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
|
|
return r ? r[17] : 0;
|
|
}
|
|
|
|
/**
|
|
* standard_timing_level - get std. timing level(CVT/GTF/DMT)
|
|
* @edid: EDID block to scan
|
|
*/
|
|
static int standard_timing_level(struct edid *edid)
|
|
{
|
|
if (edid->revision >= 2) {
|
|
if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
|
|
return LEVEL_CVT;
|
|
if (drm_gtf2_hbreak(edid))
|
|
return LEVEL_GTF2;
|
|
return LEVEL_GTF;
|
|
}
|
|
return LEVEL_DMT;
|
|
}
|
|
|
|
/*
|
|
* 0 is reserved. The spec says 0x01 fill for unused timings. Some old
|
|
* monitors fill with ascii space (0x20) instead.
|
|
*/
|
|
static int
|
|
bad_std_timing(u8 a, u8 b)
|
|
{
|
|
return (a == 0x00 && b == 0x00) ||
|
|
(a == 0x01 && b == 0x01) ||
|
|
(a == 0x20 && b == 0x20);
|
|
}
|
|
|
|
/**
|
|
* drm_mode_std - convert standard mode info (width, height, refresh) into mode
|
|
* @t: standard timing params
|
|
* @timing_level: standard timing level
|
|
*
|
|
* Take the standard timing params (in this case width, aspect, and refresh)
|
|
* and convert them into a real mode using CVT/GTF/DMT.
|
|
*/
|
|
static struct drm_display_mode *
|
|
drm_mode_std(struct drm_connector *connector, struct edid *edid,
|
|
struct std_timing *t, int revision)
|
|
{
|
|
struct drm_device *dev = connector->dev;
|
|
struct drm_display_mode *m, *mode = NULL;
|
|
int hsize, vsize;
|
|
int vrefresh_rate;
|
|
unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
|
|
>> EDID_TIMING_ASPECT_SHIFT;
|
|
unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
|
|
>> EDID_TIMING_VFREQ_SHIFT;
|
|
int timing_level = standard_timing_level(edid);
|
|
|
|
if (bad_std_timing(t->hsize, t->vfreq_aspect))
|
|
return NULL;
|
|
|
|
/* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
|
|
hsize = t->hsize * 8 + 248;
|
|
/* vrefresh_rate = vfreq + 60 */
|
|
vrefresh_rate = vfreq + 60;
|
|
/* the vdisplay is calculated based on the aspect ratio */
|
|
if (aspect_ratio == 0) {
|
|
if (revision < 3)
|
|
vsize = hsize;
|
|
else
|
|
vsize = (hsize * 10) / 16;
|
|
} else if (aspect_ratio == 1)
|
|
vsize = (hsize * 3) / 4;
|
|
else if (aspect_ratio == 2)
|
|
vsize = (hsize * 4) / 5;
|
|
else
|
|
vsize = (hsize * 9) / 16;
|
|
|
|
/* HDTV hack, part 1 */
|
|
if (vrefresh_rate == 60 &&
|
|
((hsize == 1360 && vsize == 765) ||
|
|
(hsize == 1368 && vsize == 769))) {
|
|
hsize = 1366;
|
|
vsize = 768;
|
|
}
|
|
|
|
/*
|
|
* If this connector already has a mode for this size and refresh
|
|
* rate (because it came from detailed or CVT info), use that
|
|
* instead. This way we don't have to guess at interlace or
|
|
* reduced blanking.
|
|
*/
|
|
list_for_each_entry(m, &connector->probed_modes, head)
|
|
if (m->hdisplay == hsize && m->vdisplay == vsize &&
|
|
drm_mode_vrefresh(m) == vrefresh_rate)
|
|
return NULL;
|
|
|
|
/* HDTV hack, part 2 */
|
|
if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
|
|
mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
|
|
false);
|
|
mode->hdisplay = 1366;
|
|
mode->hsync_start = mode->hsync_start - 1;
|
|
mode->hsync_end = mode->hsync_end - 1;
|
|
return mode;
|
|
}
|
|
|
|
/* check whether it can be found in default mode table */
|
|
if (drm_monitor_supports_rb(edid)) {
|
|
mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
|
|
true);
|
|
if (mode)
|
|
return mode;
|
|
}
|
|
mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
|
|
if (mode)
|
|
return mode;
|
|
|
|
/* okay, generate it */
|
|
switch (timing_level) {
|
|
case LEVEL_DMT:
|
|
break;
|
|
case LEVEL_GTF:
|
|
mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
|
|
break;
|
|
case LEVEL_GTF2:
|
|
/*
|
|
* This is potentially wrong if there's ever a monitor with
|
|
* more than one ranges section, each claiming a different
|
|
* secondary GTF curve. Please don't do that.
|
|
*/
|
|
mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
|
|
if (!mode)
|
|
return NULL;
|
|
if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
|
|
drm_mode_destroy(dev, mode);
|
|
mode = drm_gtf_mode_complex(dev, hsize, vsize,
|
|
vrefresh_rate, 0, 0,
|
|
drm_gtf2_m(edid),
|
|
drm_gtf2_2c(edid),
|
|
drm_gtf2_k(edid),
|
|
drm_gtf2_2j(edid));
|
|
}
|
|
break;
|
|
case LEVEL_CVT:
|
|
mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
|
|
false);
|
|
break;
|
|
}
|
|
return mode;
|
|
}
|
|
|
|
/*
|
|
* EDID is delightfully ambiguous about how interlaced modes are to be
|
|
* encoded. Our internal representation is of frame height, but some
|
|
* HDTV detailed timings are encoded as field height.
|
|
*
|
|
* The format list here is from CEA, in frame size. Technically we
|
|
* should be checking refresh rate too. Whatever.
|
|
*/
|
|
static void
|
|
drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
|
|
struct detailed_pixel_timing *pt)
|
|
{
|
|
int i;
|
|
static const struct {
|
|
int w, h;
|
|
} cea_interlaced[] = {
|
|
{ 1920, 1080 },
|
|
{ 720, 480 },
|
|
{ 1440, 480 },
|
|
{ 2880, 480 },
|
|
{ 720, 576 },
|
|
{ 1440, 576 },
|
|
{ 2880, 576 },
|
|
};
|
|
|
|
if (!(pt->misc & DRM_EDID_PT_INTERLACED))
|
|
return;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
|
|
if ((mode->hdisplay == cea_interlaced[i].w) &&
|
|
(mode->vdisplay == cea_interlaced[i].h / 2)) {
|
|
mode->vdisplay *= 2;
|
|
mode->vsync_start *= 2;
|
|
mode->vsync_end *= 2;
|
|
mode->vtotal *= 2;
|
|
mode->vtotal |= 1;
|
|
}
|
|
}
|
|
|
|
mode->flags |= DRM_MODE_FLAG_INTERLACE;
|
|
}
|
|
|
|
/**
|
|
* drm_mode_detailed - create a new mode from an EDID detailed timing section
|
|
* @dev: DRM device (needed to create new mode)
|
|
* @edid: EDID block
|
|
* @timing: EDID detailed timing info
|
|
* @quirks: quirks to apply
|
|
*
|
|
* An EDID detailed timing block contains enough info for us to create and
|
|
* return a new struct drm_display_mode.
|
|
*/
|
|
static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
|
|
struct edid *edid,
|
|
struct detailed_timing *timing,
|
|
u32 quirks)
|
|
{
|
|
struct drm_display_mode *mode;
|
|
struct detailed_pixel_timing *pt = &timing->data.pixel_data;
|
|
unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
|
|
unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
|
|
unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
|
|
unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
|
|
unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
|
|
unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
|
|
unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
|
|
unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
|
|
|
|
/* ignore tiny modes */
|
|
if (hactive < 64 || vactive < 64)
|
|
return NULL;
|
|
|
|
if (pt->misc & DRM_EDID_PT_STEREO) {
|
|
printk(KERN_WARNING "stereo mode not supported\n");
|
|
return NULL;
|
|
}
|
|
if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
|
|
printk(KERN_WARNING "composite sync not supported\n");
|
|
}
|
|
|
|
/* it is incorrect if hsync/vsync width is zero */
|
|
if (!hsync_pulse_width || !vsync_pulse_width) {
|
|
DRM_DEBUG_KMS("Incorrect Detailed timing. "
|
|
"Wrong Hsync/Vsync pulse width\n");
|
|
return NULL;
|
|
}
|
|
|
|
if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
|
|
mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
|
|
if (!mode)
|
|
return NULL;
|
|
|
|
goto set_size;
|
|
}
|
|
|
|
mode = drm_mode_create(dev);
|
|
if (!mode)
|
|
return NULL;
|
|
|
|
if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
|
|
timing->pixel_clock = cpu_to_le16(1088);
|
|
|
|
mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
|
|
|
|
mode->hdisplay = hactive;
|
|
mode->hsync_start = mode->hdisplay + hsync_offset;
|
|
mode->hsync_end = mode->hsync_start + hsync_pulse_width;
|
|
mode->htotal = mode->hdisplay + hblank;
|
|
|
|
mode->vdisplay = vactive;
|
|
mode->vsync_start = mode->vdisplay + vsync_offset;
|
|
mode->vsync_end = mode->vsync_start + vsync_pulse_width;
|
|
mode->vtotal = mode->vdisplay + vblank;
|
|
|
|
/* Some EDIDs have bogus h/vtotal values */
|
|
if (mode->hsync_end > mode->htotal)
|
|
mode->htotal = mode->hsync_end + 1;
|
|
if (mode->vsync_end > mode->vtotal)
|
|
mode->vtotal = mode->vsync_end + 1;
|
|
|
|
drm_mode_do_interlace_quirk(mode, pt);
|
|
|
|
if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
|
|
pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
|
|
}
|
|
|
|
mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
|
|
DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
|
|
mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
|
|
DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
|
|
|
|
set_size:
|
|
mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
|
|
mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
|
|
|
|
if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
|
|
mode->width_mm *= 10;
|
|
mode->height_mm *= 10;
|
|
}
|
|
|
|
if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
|
|
mode->width_mm = edid->width_cm * 10;
|
|
mode->height_mm = edid->height_cm * 10;
|
|
}
|
|
|
|
mode->type = DRM_MODE_TYPE_DRIVER;
|
|
mode->vrefresh = drm_mode_vrefresh(mode);
|
|
drm_mode_set_name(mode);
|
|
|
|
return mode;
|
|
}
|
|
|
|
static bool
|
|
mode_in_hsync_range(const struct drm_display_mode *mode,
|
|
struct edid *edid, u8 *t)
|
|
{
|
|
int hsync, hmin, hmax;
|
|
|
|
hmin = t[7];
|
|
if (edid->revision >= 4)
|
|
hmin += ((t[4] & 0x04) ? 255 : 0);
|
|
hmax = t[8];
|
|
if (edid->revision >= 4)
|
|
hmax += ((t[4] & 0x08) ? 255 : 0);
|
|
hsync = drm_mode_hsync(mode);
|
|
|
|
return (hsync <= hmax && hsync >= hmin);
|
|
}
|
|
|
|
static bool
|
|
mode_in_vsync_range(const struct drm_display_mode *mode,
|
|
struct edid *edid, u8 *t)
|
|
{
|
|
int vsync, vmin, vmax;
|
|
|
|
vmin = t[5];
|
|
if (edid->revision >= 4)
|
|
vmin += ((t[4] & 0x01) ? 255 : 0);
|
|
vmax = t[6];
|
|
if (edid->revision >= 4)
|
|
vmax += ((t[4] & 0x02) ? 255 : 0);
|
|
vsync = drm_mode_vrefresh(mode);
|
|
|
|
return (vsync <= vmax && vsync >= vmin);
|
|
}
|
|
|
|
static u32
|
|
range_pixel_clock(struct edid *edid, u8 *t)
|
|
{
|
|
/* unspecified */
|
|
if (t[9] == 0 || t[9] == 255)
|
|
return 0;
|
|
|
|
/* 1.4 with CVT support gives us real precision, yay */
|
|
if (edid->revision >= 4 && t[10] == 0x04)
|
|
return (t[9] * 10000) - ((t[12] >> 2) * 250);
|
|
|
|
/* 1.3 is pathetic, so fuzz up a bit */
|
|
return t[9] * 10000 + 5001;
|
|
}
|
|
|
|
static bool
|
|
mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
|
|
struct detailed_timing *timing)
|
|
{
|
|
u32 max_clock;
|
|
u8 *t = (u8 *)timing;
|
|
|
|
if (!mode_in_hsync_range(mode, edid, t))
|
|
return false;
|
|
|
|
if (!mode_in_vsync_range(mode, edid, t))
|
|
return false;
|
|
|
|
if ((max_clock = range_pixel_clock(edid, t)))
|
|
if (mode->clock > max_clock)
|
|
return false;
|
|
|
|
/* 1.4 max horizontal check */
|
|
if (edid->revision >= 4 && t[10] == 0x04)
|
|
if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
|
|
return false;
|
|
|
|
if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool valid_inferred_mode(const struct drm_connector *connector,
|
|
const struct drm_display_mode *mode)
|
|
{
|
|
struct drm_display_mode *m;
|
|
bool ok = false;
|
|
|
|
list_for_each_entry(m, &connector->probed_modes, head) {
|
|
if (mode->hdisplay == m->hdisplay &&
|
|
mode->vdisplay == m->vdisplay &&
|
|
drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
|
|
return false; /* duplicated */
|
|
if (mode->hdisplay <= m->hdisplay &&
|
|
mode->vdisplay <= m->vdisplay)
|
|
ok = true;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
static int
|
|
drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
|
|
struct detailed_timing *timing)
|
|
{
|
|
int i, modes = 0;
|
|
struct drm_display_mode *newmode;
|
|
struct drm_device *dev = connector->dev;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
|
|
if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
|
|
valid_inferred_mode(connector, drm_dmt_modes + i)) {
|
|
newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
|
|
if (newmode) {
|
|
drm_mode_probed_add(connector, newmode);
|
|
modes++;
|
|
}
|
|
}
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
/* fix up 1366x768 mode from 1368x768;
|
|
* GFT/CVT can't express 1366 width which isn't dividable by 8
|
|
*/
|
|
static void fixup_mode_1366x768(struct drm_display_mode *mode)
|
|
{
|
|
if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
|
|
mode->hdisplay = 1366;
|
|
mode->hsync_start--;
|
|
mode->hsync_end--;
|
|
drm_mode_set_name(mode);
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
|
|
struct detailed_timing *timing)
|
|
{
|
|
int i, modes = 0;
|
|
struct drm_display_mode *newmode;
|
|
struct drm_device *dev = connector->dev;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
|
|
const struct minimode *m = &extra_modes[i];
|
|
newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
|
|
if (!newmode)
|
|
return modes;
|
|
|
|
fixup_mode_1366x768(newmode);
|
|
if (!mode_in_range(newmode, edid, timing) ||
|
|
!valid_inferred_mode(connector, newmode)) {
|
|
drm_mode_destroy(dev, newmode);
|
|
continue;
|
|
}
|
|
|
|
drm_mode_probed_add(connector, newmode);
|
|
modes++;
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
static int
|
|
drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
|
|
struct detailed_timing *timing)
|
|
{
|
|
int i, modes = 0;
|
|
struct drm_display_mode *newmode;
|
|
struct drm_device *dev = connector->dev;
|
|
bool rb = drm_monitor_supports_rb(edid);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
|
|
const struct minimode *m = &extra_modes[i];
|
|
newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
|
|
if (!newmode)
|
|
return modes;
|
|
|
|
fixup_mode_1366x768(newmode);
|
|
if (!mode_in_range(newmode, edid, timing) ||
|
|
!valid_inferred_mode(connector, newmode)) {
|
|
drm_mode_destroy(dev, newmode);
|
|
continue;
|
|
}
|
|
|
|
drm_mode_probed_add(connector, newmode);
|
|
modes++;
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
static void
|
|
do_inferred_modes(struct detailed_timing *timing, void *c)
|
|
{
|
|
struct detailed_mode_closure *closure = c;
|
|
struct detailed_non_pixel *data = &timing->data.other_data;
|
|
struct detailed_data_monitor_range *range = &data->data.range;
|
|
|
|
if (data->type != EDID_DETAIL_MONITOR_RANGE)
|
|
return;
|
|
|
|
closure->modes += drm_dmt_modes_for_range(closure->connector,
|
|
closure->edid,
|
|
timing);
|
|
|
|
if (!version_greater(closure->edid, 1, 1))
|
|
return; /* GTF not defined yet */
|
|
|
|
switch (range->flags) {
|
|
case 0x02: /* secondary gtf, XXX could do more */
|
|
case 0x00: /* default gtf */
|
|
closure->modes += drm_gtf_modes_for_range(closure->connector,
|
|
closure->edid,
|
|
timing);
|
|
break;
|
|
case 0x04: /* cvt, only in 1.4+ */
|
|
if (!version_greater(closure->edid, 1, 3))
|
|
break;
|
|
|
|
closure->modes += drm_cvt_modes_for_range(closure->connector,
|
|
closure->edid,
|
|
timing);
|
|
break;
|
|
case 0x01: /* just the ranges, no formula */
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
add_inferred_modes(struct drm_connector *connector, struct edid *edid)
|
|
{
|
|
struct detailed_mode_closure closure = {
|
|
connector, edid, 0, 0, 0
|
|
};
|
|
|
|
if (version_greater(edid, 1, 0))
|
|
drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
|
|
&closure);
|
|
|
|
return closure.modes;
|
|
}
|
|
|
|
static int
|
|
drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
|
|
{
|
|
int i, j, m, modes = 0;
|
|
struct drm_display_mode *mode;
|
|
u8 *est = ((u8 *)timing) + 5;
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
for (j = 7; j > 0; j--) {
|
|
m = (i * 8) + (7 - j);
|
|
if (m >= ARRAY_SIZE(est3_modes))
|
|
break;
|
|
if (est[i] & (1 << j)) {
|
|
mode = drm_mode_find_dmt(connector->dev,
|
|
est3_modes[m].w,
|
|
est3_modes[m].h,
|
|
est3_modes[m].r,
|
|
est3_modes[m].rb);
|
|
if (mode) {
|
|
drm_mode_probed_add(connector, mode);
|
|
modes++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
static void
|
|
do_established_modes(struct detailed_timing *timing, void *c)
|
|
{
|
|
struct detailed_mode_closure *closure = c;
|
|
struct detailed_non_pixel *data = &timing->data.other_data;
|
|
|
|
if (data->type == EDID_DETAIL_EST_TIMINGS)
|
|
closure->modes += drm_est3_modes(closure->connector, timing);
|
|
}
|
|
|
|
/**
|
|
* add_established_modes - get est. modes from EDID and add them
|
|
* @edid: EDID block to scan
|
|
*
|
|
* Each EDID block contains a bitmap of the supported "established modes" list
|
|
* (defined above). Tease them out and add them to the global modes list.
|
|
*/
|
|
static int
|
|
add_established_modes(struct drm_connector *connector, struct edid *edid)
|
|
{
|
|
struct drm_device *dev = connector->dev;
|
|
unsigned long est_bits = edid->established_timings.t1 |
|
|
(edid->established_timings.t2 << 8) |
|
|
((edid->established_timings.mfg_rsvd & 0x80) << 9);
|
|
int i, modes = 0;
|
|
struct detailed_mode_closure closure = {
|
|
connector, edid, 0, 0, 0
|
|
};
|
|
|
|
for (i = 0; i <= EDID_EST_TIMINGS; i++) {
|
|
if (est_bits & (1<<i)) {
|
|
struct drm_display_mode *newmode;
|
|
newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
|
|
if (newmode) {
|
|
drm_mode_probed_add(connector, newmode);
|
|
modes++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (version_greater(edid, 1, 0))
|
|
drm_for_each_detailed_block((u8 *)edid,
|
|
do_established_modes, &closure);
|
|
|
|
return modes + closure.modes;
|
|
}
|
|
|
|
static void
|
|
do_standard_modes(struct detailed_timing *timing, void *c)
|
|
{
|
|
struct detailed_mode_closure *closure = c;
|
|
struct detailed_non_pixel *data = &timing->data.other_data;
|
|
struct drm_connector *connector = closure->connector;
|
|
struct edid *edid = closure->edid;
|
|
|
|
if (data->type == EDID_DETAIL_STD_MODES) {
|
|
int i;
|
|
for (i = 0; i < 6; i++) {
|
|
struct std_timing *std;
|
|
struct drm_display_mode *newmode;
|
|
|
|
std = &data->data.timings[i];
|
|
newmode = drm_mode_std(connector, edid, std,
|
|
edid->revision);
|
|
if (newmode) {
|
|
drm_mode_probed_add(connector, newmode);
|
|
closure->modes++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* add_standard_modes - get std. modes from EDID and add them
|
|
* @edid: EDID block to scan
|
|
*
|
|
* Standard modes can be calculated using the appropriate standard (DMT,
|
|
* GTF or CVT. Grab them from @edid and add them to the list.
|
|
*/
|
|
static int
|
|
add_standard_modes(struct drm_connector *connector, struct edid *edid)
|
|
{
|
|
int i, modes = 0;
|
|
struct detailed_mode_closure closure = {
|
|
connector, edid, 0, 0, 0
|
|
};
|
|
|
|
for (i = 0; i < EDID_STD_TIMINGS; i++) {
|
|
struct drm_display_mode *newmode;
|
|
|
|
newmode = drm_mode_std(connector, edid,
|
|
&edid->standard_timings[i],
|
|
edid->revision);
|
|
if (newmode) {
|
|
drm_mode_probed_add(connector, newmode);
|
|
modes++;
|
|
}
|
|
}
|
|
|
|
if (version_greater(edid, 1, 0))
|
|
drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
|
|
&closure);
|
|
|
|
/* XXX should also look for standard codes in VTB blocks */
|
|
|
|
return modes + closure.modes;
|
|
}
|
|
|
|
static int drm_cvt_modes(struct drm_connector *connector,
|
|
struct detailed_timing *timing)
|
|
{
|
|
int i, j, modes = 0;
|
|
struct drm_display_mode *newmode;
|
|
struct drm_device *dev = connector->dev;
|
|
struct cvt_timing *cvt;
|
|
const int rates[] = { 60, 85, 75, 60, 50 };
|
|
const u8 empty[3] = { 0, 0, 0 };
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
int uninitialized_var(width), height;
|
|
cvt = &(timing->data.other_data.data.cvt[i]);
|
|
|
|
if (!memcmp(cvt->code, empty, 3))
|
|
continue;
|
|
|
|
height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
|
|
switch (cvt->code[1] & 0x0c) {
|
|
case 0x00:
|
|
width = height * 4 / 3;
|
|
break;
|
|
case 0x04:
|
|
width = height * 16 / 9;
|
|
break;
|
|
case 0x08:
|
|
width = height * 16 / 10;
|
|
break;
|
|
case 0x0c:
|
|
width = height * 15 / 9;
|
|
break;
|
|
}
|
|
|
|
for (j = 1; j < 5; j++) {
|
|
if (cvt->code[2] & (1 << j)) {
|
|
newmode = drm_cvt_mode(dev, width, height,
|
|
rates[j], j == 0,
|
|
false, false);
|
|
if (newmode) {
|
|
drm_mode_probed_add(connector, newmode);
|
|
modes++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
static void
|
|
do_cvt_mode(struct detailed_timing *timing, void *c)
|
|
{
|
|
struct detailed_mode_closure *closure = c;
|
|
struct detailed_non_pixel *data = &timing->data.other_data;
|
|
|
|
if (data->type == EDID_DETAIL_CVT_3BYTE)
|
|
closure->modes += drm_cvt_modes(closure->connector, timing);
|
|
}
|
|
|
|
static int
|
|
add_cvt_modes(struct drm_connector *connector, struct edid *edid)
|
|
{
|
|
struct detailed_mode_closure closure = {
|
|
connector, edid, 0, 0, 0
|
|
};
|
|
|
|
if (version_greater(edid, 1, 2))
|
|
drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
|
|
|
|
/* XXX should also look for CVT codes in VTB blocks */
|
|
|
|
return closure.modes;
|
|
}
|
|
|
|
static void
|
|
do_detailed_mode(struct detailed_timing *timing, void *c)
|
|
{
|
|
struct detailed_mode_closure *closure = c;
|
|
struct drm_display_mode *newmode;
|
|
|
|
if (timing->pixel_clock) {
|
|
newmode = drm_mode_detailed(closure->connector->dev,
|
|
closure->edid, timing,
|
|
closure->quirks);
|
|
if (!newmode)
|
|
return;
|
|
|
|
if (closure->preferred)
|
|
newmode->type |= DRM_MODE_TYPE_PREFERRED;
|
|
|
|
drm_mode_probed_add(closure->connector, newmode);
|
|
closure->modes++;
|
|
closure->preferred = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* add_detailed_modes - Add modes from detailed timings
|
|
* @connector: attached connector
|
|
* @edid: EDID block to scan
|
|
* @quirks: quirks to apply
|
|
*/
|
|
static int
|
|
add_detailed_modes(struct drm_connector *connector, struct edid *edid,
|
|
u32 quirks)
|
|
{
|
|
struct detailed_mode_closure closure = {
|
|
connector,
|
|
edid,
|
|
1,
|
|
quirks,
|
|
0
|
|
};
|
|
|
|
if (closure.preferred && !version_greater(edid, 1, 3))
|
|
closure.preferred =
|
|
(edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
|
|
|
|
drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
|
|
|
|
return closure.modes;
|
|
}
|
|
|
|
#define HDMI_IDENTIFIER 0x000C03
|
|
#define AUDIO_BLOCK 0x01
|
|
#define VIDEO_BLOCK 0x02
|
|
#define VENDOR_BLOCK 0x03
|
|
#define SPEAKER_BLOCK 0x04
|
|
#define VIDEO_CAPABILITY_BLOCK 0x07
|
|
#define EDID_BASIC_AUDIO (1 << 6)
|
|
#define EDID_CEA_YCRCB444 (1 << 5)
|
|
#define EDID_CEA_YCRCB422 (1 << 4)
|
|
#define EDID_CEA_VCDB_QS (1 << 6)
|
|
|
|
/**
|
|
* Search EDID for CEA extension block.
|
|
*/
|
|
u8 *drm_find_cea_extension(struct edid *edid)
|
|
{
|
|
u8 *edid_ext = NULL;
|
|
int i;
|
|
|
|
/* No EDID or EDID extensions */
|
|
if (edid == NULL || edid->extensions == 0)
|
|
return NULL;
|
|
|
|
/* Find CEA extension */
|
|
for (i = 0; i < edid->extensions; i++) {
|
|
edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);
|
|
if (edid_ext[0] == CEA_EXT)
|
|
break;
|
|
}
|
|
|
|
if (i == edid->extensions)
|
|
return NULL;
|
|
|
|
return edid_ext;
|
|
}
|
|
EXPORT_SYMBOL(drm_find_cea_extension);
|
|
|
|
/**
|
|
* drm_match_cea_mode - look for a CEA mode matching given mode
|
|
* @to_match: display mode
|
|
*
|
|
* Returns the CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
|
|
* mode.
|
|
*/
|
|
u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
|
|
{
|
|
struct drm_display_mode *cea_mode;
|
|
u8 mode;
|
|
|
|
for (mode = 0; mode < ARRAY_SIZE(edid_cea_modes); mode++) {
|
|
cea_mode = (struct drm_display_mode *)&edid_cea_modes[mode];
|
|
|
|
if (drm_mode_equal(to_match, cea_mode))
|
|
return mode + 1;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(drm_match_cea_mode);
|
|
|
|
|
|
static int
|
|
do_cea_modes (struct drm_connector *connector, u8 *db, u8 len)
|
|
{
|
|
struct drm_device *dev = connector->dev;
|
|
u8 * mode, cea_mode;
|
|
int modes = 0;
|
|
|
|
for (mode = db; mode < db + len; mode++) {
|
|
cea_mode = (*mode & 127) - 1; /* CEA modes are numbered 1..127 */
|
|
if (cea_mode < ARRAY_SIZE(edid_cea_modes)) {
|
|
struct drm_display_mode *newmode;
|
|
newmode = drm_mode_duplicate(dev,
|
|
&edid_cea_modes[cea_mode]);
|
|
if (newmode) {
|
|
drm_mode_probed_add(connector, newmode);
|
|
modes++;
|
|
}
|
|
}
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
static int
|
|
cea_db_payload_len(const u8 *db)
|
|
{
|
|
return db[0] & 0x1f;
|
|
}
|
|
|
|
static int
|
|
cea_db_tag(const u8 *db)
|
|
{
|
|
return db[0] >> 5;
|
|
}
|
|
|
|
static int
|
|
cea_revision(const u8 *cea)
|
|
{
|
|
return cea[1];
|
|
}
|
|
|
|
static int
|
|
cea_db_offsets(const u8 *cea, int *start, int *end)
|
|
{
|
|
/* Data block offset in CEA extension block */
|
|
*start = 4;
|
|
*end = cea[2];
|
|
if (*end == 0)
|
|
*end = 127;
|
|
if (*end < 4 || *end > 127)
|
|
return -ERANGE;
|
|
return 0;
|
|
}
|
|
|
|
#define for_each_cea_db(cea, i, start, end) \
|
|
for ((i) = (start); (i) < (end) && (i) + cea_db_payload_len(&(cea)[(i)]) < (end); (i) += cea_db_payload_len(&(cea)[(i)]) + 1)
|
|
|
|
static int
|
|
add_cea_modes(struct drm_connector *connector, struct edid *edid)
|
|
{
|
|
u8 * cea = drm_find_cea_extension(edid);
|
|
u8 * db, dbl;
|
|
int modes = 0;
|
|
|
|
if (cea && cea_revision(cea) >= 3) {
|
|
int i, start, end;
|
|
|
|
if (cea_db_offsets(cea, &start, &end))
|
|
return 0;
|
|
|
|
for_each_cea_db(cea, i, start, end) {
|
|
db = &cea[i];
|
|
dbl = cea_db_payload_len(db);
|
|
|
|
if (cea_db_tag(db) == VIDEO_BLOCK)
|
|
modes += do_cea_modes (connector, db+1, dbl);
|
|
}
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
static void
|
|
parse_hdmi_vsdb(struct drm_connector *connector, const u8 *db)
|
|
{
|
|
u8 len = cea_db_payload_len(db);
|
|
|
|
if (len >= 6) {
|
|
connector->eld[5] |= (db[6] >> 7) << 1; /* Supports_AI */
|
|
connector->dvi_dual = db[6] & 1;
|
|
}
|
|
if (len >= 7)
|
|
connector->max_tmds_clock = db[7] * 5;
|
|
if (len >= 8) {
|
|
connector->latency_present[0] = db[8] >> 7;
|
|
connector->latency_present[1] = (db[8] >> 6) & 1;
|
|
}
|
|
if (len >= 9)
|
|
connector->video_latency[0] = db[9];
|
|
if (len >= 10)
|
|
connector->audio_latency[0] = db[10];
|
|
if (len >= 11)
|
|
connector->video_latency[1] = db[11];
|
|
if (len >= 12)
|
|
connector->audio_latency[1] = db[12];
|
|
|
|
DRM_DEBUG_KMS("HDMI: DVI dual %d, "
|
|
"max TMDS clock %d, "
|
|
"latency present %d %d, "
|
|
"video latency %d %d, "
|
|
"audio latency %d %d\n",
|
|
connector->dvi_dual,
|
|
connector->max_tmds_clock,
|
|
(int) connector->latency_present[0],
|
|
(int) connector->latency_present[1],
|
|
connector->video_latency[0],
|
|
connector->video_latency[1],
|
|
connector->audio_latency[0],
|
|
connector->audio_latency[1]);
|
|
}
|
|
|
|
static void
|
|
monitor_name(struct detailed_timing *t, void *data)
|
|
{
|
|
if (t->data.other_data.type == EDID_DETAIL_MONITOR_NAME)
|
|
*(u8 **)data = t->data.other_data.data.str.str;
|
|
}
|
|
|
|
static bool cea_db_is_hdmi_vsdb(const u8 *db)
|
|
{
|
|
int hdmi_id;
|
|
|
|
if (cea_db_tag(db) != VENDOR_BLOCK)
|
|
return false;
|
|
|
|
if (cea_db_payload_len(db) < 5)
|
|
return false;
|
|
|
|
hdmi_id = db[1] | (db[2] << 8) | (db[3] << 16);
|
|
|
|
return hdmi_id == HDMI_IDENTIFIER;
|
|
}
|
|
|
|
/**
|
|
* drm_edid_to_eld - build ELD from EDID
|
|
* @connector: connector corresponding to the HDMI/DP sink
|
|
* @edid: EDID to parse
|
|
*
|
|
* Fill the ELD (EDID-Like Data) buffer for passing to the audio driver.
|
|
* Some ELD fields are left to the graphics driver caller:
|
|
* - Conn_Type
|
|
* - HDCP
|
|
* - Port_ID
|
|
*/
|
|
void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
|
|
{
|
|
uint8_t *eld = connector->eld;
|
|
u8 *cea;
|
|
u8 *name;
|
|
u8 *db;
|
|
int sad_count = 0;
|
|
int mnl;
|
|
int dbl;
|
|
|
|
memset(eld, 0, sizeof(connector->eld));
|
|
|
|
cea = drm_find_cea_extension(edid);
|
|
if (!cea) {
|
|
DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
|
|
return;
|
|
}
|
|
|
|
name = NULL;
|
|
drm_for_each_detailed_block((u8 *)edid, monitor_name, &name);
|
|
for (mnl = 0; name && mnl < 13; mnl++) {
|
|
if (name[mnl] == 0x0a)
|
|
break;
|
|
eld[20 + mnl] = name[mnl];
|
|
}
|
|
eld[4] = (cea[1] << 5) | mnl;
|
|
DRM_DEBUG_KMS("ELD monitor %s\n", eld + 20);
|
|
|
|
eld[0] = 2 << 3; /* ELD version: 2 */
|
|
|
|
eld[16] = edid->mfg_id[0];
|
|
eld[17] = edid->mfg_id[1];
|
|
eld[18] = edid->prod_code[0];
|
|
eld[19] = edid->prod_code[1];
|
|
|
|
if (cea_revision(cea) >= 3) {
|
|
int i, start, end;
|
|
|
|
if (cea_db_offsets(cea, &start, &end)) {
|
|
start = 0;
|
|
end = 0;
|
|
}
|
|
|
|
for_each_cea_db(cea, i, start, end) {
|
|
db = &cea[i];
|
|
dbl = cea_db_payload_len(db);
|
|
|
|
switch (cea_db_tag(db)) {
|
|
case AUDIO_BLOCK:
|
|
/* Audio Data Block, contains SADs */
|
|
sad_count = dbl / 3;
|
|
if (dbl >= 1)
|
|
memcpy(eld + 20 + mnl, &db[1], dbl);
|
|
break;
|
|
case SPEAKER_BLOCK:
|
|
/* Speaker Allocation Data Block */
|
|
if (dbl >= 1)
|
|
eld[7] = db[1];
|
|
break;
|
|
case VENDOR_BLOCK:
|
|
/* HDMI Vendor-Specific Data Block */
|
|
if (cea_db_is_hdmi_vsdb(db))
|
|
parse_hdmi_vsdb(connector, db);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
eld[5] |= sad_count << 4;
|
|
eld[2] = (20 + mnl + sad_count * 3 + 3) / 4;
|
|
|
|
DRM_DEBUG_KMS("ELD size %d, SAD count %d\n", (int)eld[2], sad_count);
|
|
}
|
|
EXPORT_SYMBOL(drm_edid_to_eld);
|
|
|
|
/**
|
|
* drm_av_sync_delay - HDMI/DP sink audio-video sync delay in millisecond
|
|
* @connector: connector associated with the HDMI/DP sink
|
|
* @mode: the display mode
|
|
*/
|
|
int drm_av_sync_delay(struct drm_connector *connector,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
|
|
int a, v;
|
|
|
|
if (!connector->latency_present[0])
|
|
return 0;
|
|
if (!connector->latency_present[1])
|
|
i = 0;
|
|
|
|
a = connector->audio_latency[i];
|
|
v = connector->video_latency[i];
|
|
|
|
/*
|
|
* HDMI/DP sink doesn't support audio or video?
|
|
*/
|
|
if (a == 255 || v == 255)
|
|
return 0;
|
|
|
|
/*
|
|
* Convert raw EDID values to millisecond.
|
|
* Treat unknown latency as 0ms.
|
|
*/
|
|
if (a)
|
|
a = min(2 * (a - 1), 500);
|
|
if (v)
|
|
v = min(2 * (v - 1), 500);
|
|
|
|
return max(v - a, 0);
|
|
}
|
|
EXPORT_SYMBOL(drm_av_sync_delay);
|
|
|
|
/**
|
|
* drm_select_eld - select one ELD from multiple HDMI/DP sinks
|
|
* @encoder: the encoder just changed display mode
|
|
* @mode: the adjusted display mode
|
|
*
|
|
* It's possible for one encoder to be associated with multiple HDMI/DP sinks.
|
|
* The policy is now hard coded to simply use the first HDMI/DP sink's ELD.
|
|
*/
|
|
struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
struct drm_connector *connector;
|
|
struct drm_device *dev = encoder->dev;
|
|
|
|
list_for_each_entry(connector, &dev->mode_config.connector_list, head)
|
|
if (connector->encoder == encoder && connector->eld[0])
|
|
return connector;
|
|
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(drm_select_eld);
|
|
|
|
/**
|
|
* drm_detect_hdmi_monitor - detect whether monitor is hdmi.
|
|
* @edid: monitor EDID information
|
|
*
|
|
* Parse the CEA extension according to CEA-861-B.
|
|
* Return true if HDMI, false if not or unknown.
|
|
*/
|
|
bool drm_detect_hdmi_monitor(struct edid *edid)
|
|
{
|
|
u8 *edid_ext;
|
|
int i;
|
|
int start_offset, end_offset;
|
|
|
|
edid_ext = drm_find_cea_extension(edid);
|
|
if (!edid_ext)
|
|
return false;
|
|
|
|
if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
|
|
return false;
|
|
|
|
/*
|
|
* Because HDMI identifier is in Vendor Specific Block,
|
|
* search it from all data blocks of CEA extension.
|
|
*/
|
|
for_each_cea_db(edid_ext, i, start_offset, end_offset) {
|
|
if (cea_db_is_hdmi_vsdb(&edid_ext[i]))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
EXPORT_SYMBOL(drm_detect_hdmi_monitor);
|
|
|
|
/**
|
|
* drm_detect_monitor_audio - check monitor audio capability
|
|
*
|
|
* Monitor should have CEA extension block.
|
|
* If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
|
|
* audio' only. If there is any audio extension block and supported
|
|
* audio format, assume at least 'basic audio' support, even if 'basic
|
|
* audio' is not defined in EDID.
|
|
*
|
|
*/
|
|
bool drm_detect_monitor_audio(struct edid *edid)
|
|
{
|
|
u8 *edid_ext;
|
|
int i, j;
|
|
bool has_audio = false;
|
|
int start_offset, end_offset;
|
|
|
|
edid_ext = drm_find_cea_extension(edid);
|
|
if (!edid_ext)
|
|
goto end;
|
|
|
|
has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0);
|
|
|
|
if (has_audio) {
|
|
DRM_DEBUG_KMS("Monitor has basic audio support\n");
|
|
goto end;
|
|
}
|
|
|
|
if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
|
|
goto end;
|
|
|
|
for_each_cea_db(edid_ext, i, start_offset, end_offset) {
|
|
if (cea_db_tag(&edid_ext[i]) == AUDIO_BLOCK) {
|
|
has_audio = true;
|
|
for (j = 1; j < cea_db_payload_len(&edid_ext[i]) + 1; j += 3)
|
|
DRM_DEBUG_KMS("CEA audio format %d\n",
|
|
(edid_ext[i + j] >> 3) & 0xf);
|
|
goto end;
|
|
}
|
|
}
|
|
end:
|
|
return has_audio;
|
|
}
|
|
EXPORT_SYMBOL(drm_detect_monitor_audio);
|
|
|
|
/**
|
|
* drm_rgb_quant_range_selectable - is RGB quantization range selectable?
|
|
*
|
|
* Check whether the monitor reports the RGB quantization range selection
|
|
* as supported. The AVI infoframe can then be used to inform the monitor
|
|
* which quantization range (full or limited) is used.
|
|
*/
|
|
bool drm_rgb_quant_range_selectable(struct edid *edid)
|
|
{
|
|
u8 *edid_ext;
|
|
int i, start, end;
|
|
|
|
edid_ext = drm_find_cea_extension(edid);
|
|
if (!edid_ext)
|
|
return false;
|
|
|
|
if (cea_db_offsets(edid_ext, &start, &end))
|
|
return false;
|
|
|
|
for_each_cea_db(edid_ext, i, start, end) {
|
|
if (cea_db_tag(&edid_ext[i]) == VIDEO_CAPABILITY_BLOCK &&
|
|
cea_db_payload_len(&edid_ext[i]) == 2) {
|
|
DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", edid_ext[i + 2]);
|
|
return edid_ext[i + 2] & EDID_CEA_VCDB_QS;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
EXPORT_SYMBOL(drm_rgb_quant_range_selectable);
|
|
|
|
/**
|
|
* drm_add_display_info - pull display info out if present
|
|
* @edid: EDID data
|
|
* @info: display info (attached to connector)
|
|
*
|
|
* Grab any available display info and stuff it into the drm_display_info
|
|
* structure that's part of the connector. Useful for tracking bpp and
|
|
* color spaces.
|
|
*/
|
|
static void drm_add_display_info(struct edid *edid,
|
|
struct drm_display_info *info)
|
|
{
|
|
u8 *edid_ext;
|
|
|
|
info->width_mm = edid->width_cm * 10;
|
|
info->height_mm = edid->height_cm * 10;
|
|
|
|
/* driver figures it out in this case */
|
|
info->bpc = 0;
|
|
info->color_formats = 0;
|
|
|
|
if (edid->revision < 3)
|
|
return;
|
|
|
|
if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
|
|
return;
|
|
|
|
/* Get data from CEA blocks if present */
|
|
edid_ext = drm_find_cea_extension(edid);
|
|
if (edid_ext) {
|
|
info->cea_rev = edid_ext[1];
|
|
|
|
/* The existence of a CEA block should imply RGB support */
|
|
info->color_formats = DRM_COLOR_FORMAT_RGB444;
|
|
if (edid_ext[3] & EDID_CEA_YCRCB444)
|
|
info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
|
|
if (edid_ext[3] & EDID_CEA_YCRCB422)
|
|
info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
|
|
}
|
|
|
|
/* Only defined for 1.4 with digital displays */
|
|
if (edid->revision < 4)
|
|
return;
|
|
|
|
switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
|
|
case DRM_EDID_DIGITAL_DEPTH_6:
|
|
info->bpc = 6;
|
|
break;
|
|
case DRM_EDID_DIGITAL_DEPTH_8:
|
|
info->bpc = 8;
|
|
break;
|
|
case DRM_EDID_DIGITAL_DEPTH_10:
|
|
info->bpc = 10;
|
|
break;
|
|
case DRM_EDID_DIGITAL_DEPTH_12:
|
|
info->bpc = 12;
|
|
break;
|
|
case DRM_EDID_DIGITAL_DEPTH_14:
|
|
info->bpc = 14;
|
|
break;
|
|
case DRM_EDID_DIGITAL_DEPTH_16:
|
|
info->bpc = 16;
|
|
break;
|
|
case DRM_EDID_DIGITAL_DEPTH_UNDEF:
|
|
default:
|
|
info->bpc = 0;
|
|
break;
|
|
}
|
|
|
|
info->color_formats |= DRM_COLOR_FORMAT_RGB444;
|
|
if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
|
|
info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
|
|
if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
|
|
info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
|
|
}
|
|
|
|
/**
|
|
* drm_add_edid_modes - add modes from EDID data, if available
|
|
* @connector: connector we're probing
|
|
* @edid: edid data
|
|
*
|
|
* Add the specified modes to the connector's mode list.
|
|
*
|
|
* Return number of modes added or 0 if we couldn't find any.
|
|
*/
|
|
int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
|
|
{
|
|
int num_modes = 0;
|
|
u32 quirks;
|
|
|
|
if (edid == NULL) {
|
|
return 0;
|
|
}
|
|
if (!drm_edid_is_valid(edid)) {
|
|
dev_warn(connector->dev->dev, "%s: EDID invalid.\n",
|
|
drm_get_connector_name(connector));
|
|
return 0;
|
|
}
|
|
|
|
quirks = edid_get_quirks(edid);
|
|
|
|
/*
|
|
* EDID spec says modes should be preferred in this order:
|
|
* - preferred detailed mode
|
|
* - other detailed modes from base block
|
|
* - detailed modes from extension blocks
|
|
* - CVT 3-byte code modes
|
|
* - standard timing codes
|
|
* - established timing codes
|
|
* - modes inferred from GTF or CVT range information
|
|
*
|
|
* We get this pretty much right.
|
|
*
|
|
* XXX order for additional mode types in extension blocks?
|
|
*/
|
|
num_modes += add_detailed_modes(connector, edid, quirks);
|
|
num_modes += add_cvt_modes(connector, edid);
|
|
num_modes += add_standard_modes(connector, edid);
|
|
num_modes += add_established_modes(connector, edid);
|
|
if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
|
|
num_modes += add_inferred_modes(connector, edid);
|
|
num_modes += add_cea_modes(connector, edid);
|
|
|
|
if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
|
|
edid_fixup_preferred(connector, quirks);
|
|
|
|
drm_add_display_info(edid, &connector->display_info);
|
|
|
|
return num_modes;
|
|
}
|
|
EXPORT_SYMBOL(drm_add_edid_modes);
|
|
|
|
/**
|
|
* drm_add_modes_noedid - add modes for the connectors without EDID
|
|
* @connector: connector we're probing
|
|
* @hdisplay: the horizontal display limit
|
|
* @vdisplay: the vertical display limit
|
|
*
|
|
* Add the specified modes to the connector's mode list. Only when the
|
|
* hdisplay/vdisplay is not beyond the given limit, it will be added.
|
|
*
|
|
* Return number of modes added or 0 if we couldn't find any.
|
|
*/
|
|
int drm_add_modes_noedid(struct drm_connector *connector,
|
|
int hdisplay, int vdisplay)
|
|
{
|
|
int i, count, num_modes = 0;
|
|
struct drm_display_mode *mode;
|
|
struct drm_device *dev = connector->dev;
|
|
|
|
count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
|
|
if (hdisplay < 0)
|
|
hdisplay = 0;
|
|
if (vdisplay < 0)
|
|
vdisplay = 0;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
const struct drm_display_mode *ptr = &drm_dmt_modes[i];
|
|
if (hdisplay && vdisplay) {
|
|
/*
|
|
* Only when two are valid, they will be used to check
|
|
* whether the mode should be added to the mode list of
|
|
* the connector.
|
|
*/
|
|
if (ptr->hdisplay > hdisplay ||
|
|
ptr->vdisplay > vdisplay)
|
|
continue;
|
|
}
|
|
if (drm_mode_vrefresh(ptr) > 61)
|
|
continue;
|
|
mode = drm_mode_duplicate(dev, ptr);
|
|
if (mode) {
|
|
drm_mode_probed_add(connector, mode);
|
|
num_modes++;
|
|
}
|
|
}
|
|
return num_modes;
|
|
}
|
|
EXPORT_SYMBOL(drm_add_modes_noedid);
|
|
|
|
/**
|
|
* drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
|
|
* data from a DRM display mode
|
|
* @frame: HDMI AVI infoframe
|
|
* @mode: DRM display mode
|
|
*
|
|
* Returns 0 on success or a negative error code on failure.
|
|
*/
|
|
int
|
|
drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
|
|
const struct drm_display_mode *mode)
|
|
{
|
|
int err;
|
|
|
|
if (!frame || !mode)
|
|
return -EINVAL;
|
|
|
|
err = hdmi_avi_infoframe_init(frame);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
frame->video_code = drm_match_cea_mode(mode);
|
|
if (!frame->video_code)
|
|
return 0;
|
|
|
|
frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
|
|
frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
|