| 1 | /* |
| 2 | * Copyright 2006 Luc Verhaegen. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sub license, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the |
| 12 | * next paragraph) shall be included in all copies or substantial portions |
| 13 | * of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 21 | * DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #ifdef HAVE_XORG_CONFIG_H |
| 25 | #include <xorg-config.h> |
| 26 | #endif |
| 27 | |
| 28 | #include "xf86.h" |
| 29 | #include "xf86DDC.h" |
| 30 | #include <X11/Xatom.h> |
| 31 | #include "property.h" |
| 32 | #include "propertyst.h" |
| 33 | #include <string.h> |
| 34 | |
| 35 | #define EDID1_ATOM_NAME "XFree86_DDC_EDID1_RAWDATA" |
| 36 | |
| 37 | static void |
| 38 | edidMakeAtom(int i, const char *name, CARD8 *data, int size) |
| 39 | { |
| 40 | Atom atom; |
| 41 | unsigned char *atom_data; |
| 42 | |
| 43 | if (!(atom_data = malloc(size * sizeof(CARD8)))) |
| 44 | return; |
| 45 | |
| 46 | atom = MakeAtom(name, strlen(name), TRUE); |
| 47 | memcpy(atom_data, data, size); |
| 48 | xf86RegisterRootWindowProperty(i, atom, XA_INTEGER, 8, size, atom_data); |
| 49 | } |
| 50 | |
| 51 | static void |
| 52 | addRootWindowProperties(ScrnInfoPtr pScrn, xf86MonPtr DDC) |
| 53 | { |
| 54 | int scrnIndex = pScrn->scrnIndex; |
| 55 | |
| 56 | if (DDC->flags & MONITOR_DISPLAYID) { |
| 57 | /* Don't bother, use RANDR already */ |
| 58 | return; |
| 59 | } |
| 60 | else if (DDC->ver.version == 1) { |
| 61 | int size = 128 + |
| 62 | (DDC->flags & EDID_COMPLETE_RAWDATA ? DDC->no_sections * 128 : 0); |
| 63 | |
| 64 | edidMakeAtom(scrnIndex, EDID1_ATOM_NAME, DDC->rawData, size); |
| 65 | } |
| 66 | else { |
| 67 | xf86DrvMsg(scrnIndex, X_PROBED, "unexpected EDID version %d.%d\n", |
| 68 | DDC->ver.version, DDC->ver.revision); |
| 69 | return; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | Bool |
| 74 | xf86SetDDCproperties(ScrnInfoPtr pScrn, xf86MonPtr DDC) |
| 75 | { |
| 76 | if (!pScrn || !pScrn->monitor || !DDC) |
| 77 | return FALSE; |
| 78 | |
| 79 | if (DDC->flags & MONITOR_DISPLAYID); |
| 80 | else |
| 81 | xf86EdidMonitorSet(pScrn->scrnIndex, pScrn->monitor, DDC); |
| 82 | |
| 83 | addRootWindowProperties(pScrn, DDC); |
| 84 | |
| 85 | return TRUE; |
| 86 | } |