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https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-21 20:35:58 +01:00
backend/drm: use pnp.ids to fetch EDID data
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parent
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commit
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8 changed files with 63 additions and 77 deletions
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@ -17,6 +17,7 @@ packages:
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- xcb-util-wm-dev
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- xwayland
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- libseat-dev
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- hwdata
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sources:
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- https://gitlab.freedesktop.org/wlroots/wlroots.git
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tasks:
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@ -18,6 +18,7 @@ packages:
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- vulkan-icd-loader
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- vulkan-headers
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- glslang
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- hwdata
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sources:
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- https://gitlab.freedesktop.org/wlroots/wlroots.git
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tasks:
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@ -25,6 +25,7 @@ packages:
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- x11-servers/xwayland
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- sysutils/seatd
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- gmake
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- hwdata
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sources:
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- https://gitlab.freedesktop.org/wlroots/wlroots.git
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tasks:
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@ -51,6 +51,7 @@ Install dependencies:
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* udev
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* pixman
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* [libseat]
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* [hwdata] (optional, for the DRM backend)
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If you choose to enable X11 support:
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@ -78,4 +79,5 @@ See [CONTRIBUTING.md].
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[#sway-devel on Libera Chat]: https://web.libera.chat/gamja/?channels=#sway-devel
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[wrapper libraries]: https://gitlab.freedesktop.org/wlroots/wlroots/-/wikis/Projects-which-use-wlroots#wrapper-libraries
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[libseat]: https://git.sr.ht/~kennylevinsen/seatd
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[hwdata]: https://github.com/vcrhonek/hwdata
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[CONTRIBUTING.md]: https://gitlab.freedesktop.org/wlroots/wlroots/-/blob/master/CONTRIBUTING.md
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27
backend/drm/gen_pnpids.sh
Executable file
27
backend/drm/gen_pnpids.sh
Executable file
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@ -0,0 +1,27 @@
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#!/bin/sh -eu
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#
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# usage: gen_pnpids.sh < pnp.ids > pnpids.c
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gen_pnps()
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{
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while read -r id vendor; do
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[ "${#id}" = 3 ] || exit 1
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printf "\tcase PNP_ID('%c', '%c', '%c'): return \"%s\";\n" \
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"$id" "${id#?}" "${id#??}" "$vendor"
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done
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}
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cat << EOF
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#include <stdint.h>
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#include <stddef.h>
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#include "backend/drm/util.h"
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#define PNP_ID(a, b, c) ((a & 0x1f) << 10) | ((b & 0x1f) << 5) | (c & 0x1f)
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const char *get_pnp_manufacturer(uint16_t code) {
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switch (code) {
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$(gen_pnps)
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}
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return NULL;
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}
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#undef PNP_ID
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EOF
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@ -1,3 +1,21 @@
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hwdata = dependency('hwdata', required: false, native: true)
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if hwdata.found()
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hwdata_dir = hwdata.get_variable(pkgconfig: 'pkgdatadir')
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pnp_ids = files(hwdata_dir / 'pnp.ids')
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else
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pnp_ids = files('/usr/share/hwdata/pnp.ids')
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endif
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pnpids_c = custom_target(
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'pnpids.c',
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output: 'pnpids.c',
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input: pnp_ids,
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feed: true,
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capture: true,
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command: files('gen_pnpids.sh'),
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)
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wlr_files += pnpids_c
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wlr_files += files(
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'atomic.c',
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'backend.c',
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@ -48,82 +48,6 @@ enum wlr_output_mode_aspect_ratio get_picture_aspect_ratio(const drmModeModeInfo
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}
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}
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// Constructed from http://edid.tv/manufacturer
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static const char *get_manufacturer(uint16_t id) {
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#define ID(a, b, c) ((a & 0x1f) << 10) | ((b & 0x1f) << 5) | (c & 0x1f)
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switch (id) {
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case ID('A', 'A', 'A'): return "Avolites Ltd";
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case ID('A', 'C', 'I'): return "Ancor Communications Inc";
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case ID('A', 'C', 'R'): return "Acer Technologies";
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case ID('A', 'D', 'A'): return "Addi-Data GmbH";
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case ID('A', 'P', 'P'): return "Apple Computer Inc";
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case ID('A', 'S', 'K'): return "Ask A/S";
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case ID('A', 'V', 'T'): return "Avtek (Electronics) Pty Ltd";
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case ID('B', 'N', 'O'): return "Bang & Olufsen";
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case ID('B', 'N', 'Q'): return "BenQ Corporation";
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case ID('C', 'M', 'N'): return "Chimei Innolux Corporation";
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case ID('C', 'M', 'O'): return "Chi Mei Optoelectronics corp.";
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case ID('C', 'R', 'O'): return "Extraordinary Technologies PTY Limited";
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case ID('D', 'E', 'L'): return "Dell Inc.";
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case ID('D', 'G', 'C'): return "Data General Corporation";
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case ID('D', 'O', 'N'): return "DENON, Ltd.";
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case ID('E', 'N', 'C'): return "Eizo Nanao Corporation";
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case ID('E', 'P', 'H'): return "Epiphan Systems Inc.";
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case ID('E', 'X', 'P'): return "Data Export Corporation";
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case ID('F', 'N', 'I'): return "Funai Electric Co., Ltd.";
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case ID('F', 'U', 'S'): return "Fujitsu Siemens Computers GmbH";
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case ID('G', 'S', 'M'): return "Goldstar Company Ltd";
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case ID('H', 'I', 'Q'): return "Kaohsiung Opto Electronics Americas, Inc.";
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case ID('H', 'S', 'D'): return "HannStar Display Corp";
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case ID('H', 'T', 'C'): return "Hitachi Ltd";
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case ID('H', 'W', 'P'): return "Hewlett Packard";
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case ID('I', 'N', 'T'): return "Interphase Corporation";
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case ID('I', 'N', 'X'): return "Communications Supply Corporation (A division of WESCO)";
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case ID('I', 'T', 'E'): return "Integrated Tech Express Inc";
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case ID('I', 'V', 'M'): return "Iiyama North America";
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case ID('L', 'E', 'N'): return "Lenovo Group Limited";
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case ID('M', 'A', 'X'): return "Rogen Tech Distribution Inc";
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case ID('M', 'E', 'G'): return "Abeam Tech Ltd";
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case ID('M', 'E', 'I'): return "Panasonic Industry Company";
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case ID('M', 'T', 'C'): return "Mars-Tech Corporation";
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case ID('M', 'T', 'X'): return "Matrox";
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case ID('N', 'E', 'C'): return "NEC Corporation";
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case ID('N', 'E', 'X'): return "Nexgen Mediatech Inc.";
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case ID('O', 'N', 'K'): return "ONKYO Corporation";
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case ID('O', 'R', 'N'): return "ORION ELECTRIC CO., LTD.";
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case ID('O', 'T', 'M'): return "Optoma Corporation";
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case ID('O', 'V', 'R'): return "Oculus VR, Inc.";
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case ID('P', 'H', 'L'): return "Philips Consumer Electronics Company";
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case ID('P', 'I', 'O'): return "Pioneer Electronic Corporation";
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case ID('P', 'N', 'R'): return "Planar Systems, Inc.";
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case ID('Q', 'D', 'S'): return "Quanta Display Inc.";
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case ID('R', 'A', 'T'): return "Rent-A-Tech";
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case ID('R', 'E', 'N'): return "Renesas Technology Corp.";
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case ID('S', 'A', 'M'): return "Samsung Electric Company";
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case ID('S', 'A', 'N'): return "Sanyo Electric Co., Ltd.";
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case ID('S', 'E', 'C'): return "Seiko Epson Corporation";
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case ID('S', 'H', 'P'): return "Sharp Corporation";
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case ID('S', 'I', 'I'): return "Silicon Image, Inc.";
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case ID('S', 'N', 'Y'): return "Sony";
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case ID('S', 'T', 'D'): return "STD Computer Inc";
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case ID('S', 'V', 'S'): return "SVSI";
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case ID('S', 'Y', 'N'): return "Synaptics Inc";
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case ID('T', 'C', 'L'): return "Technical Concepts Ltd";
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case ID('T', 'O', 'P'): return "Orion Communications Co., Ltd.";
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case ID('T', 'S', 'B'): return "Toshiba America Info Systems Inc";
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case ID('T', 'S', 'T'): return "Transtream Inc";
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case ID('U', 'N', 'K'): return "Unknown";
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case ID('V', 'E', 'S'): return "Vestel Elektronik Sanayi ve Ticaret A. S.";
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case ID('V', 'I', 'T'): return "Visitech AS";
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case ID('V', 'I', 'Z'): return "VIZIO, Inc";
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case ID('V', 'L', 'V'): return "Valve";
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case ID('V', 'S', 'C'): return "ViewSonic Corporation";
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case ID('Y', 'M', 'H'): return "Yamaha Corporation";
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default: return "Unknown";
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}
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#undef ID
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}
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/* See https://en.wikipedia.org/wiki/Extended_Display_Identification_Data for layout of EDID data.
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* We don't parse the EDID properly. We just expect to receive valid data.
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*/
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@ -142,7 +66,17 @@ void parse_edid(struct wlr_drm_connector *conn, size_t len, const uint8_t *data)
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}
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uint16_t id = (data[8] << 8) | data[9];
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output->make = strdup(get_manufacturer(id));
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const char *manu = get_pnp_manufacturer(id);
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char pnp_id[4];
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if (!manu) {
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// The ASCII 3-letter manufacturer PnP ID is encoded in 5-bit codes
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pnp_id[0] = ((id >> 10) & 0x1F) + '@';
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pnp_id[1] = ((id >> 5) & 0x1F) + '@';
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pnp_id[2] = ((id >> 0) & 0x1F) + '@';
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pnp_id[3] = '\0';
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manu = pnp_id;
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}
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output->make = strdup(manu);
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uint16_t model = data[10] | (data[11] << 8);
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char model_str[32];
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@ -10,6 +10,8 @@ struct wlr_drm_connector;
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// Calculates a more accurate refresh rate (mHz) than what mode itself provides
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int32_t calculate_refresh_rate(const drmModeModeInfo *mode);
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enum wlr_output_mode_aspect_ratio get_picture_aspect_ratio(const drmModeModeInfo *mode);
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// Returns manufacturer based on pnp id
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const char *get_pnp_manufacturer(uint16_t code);
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// Populates the make/model/phys_{width,height} of output from the edid data
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void parse_edid(struct wlr_drm_connector *conn, size_t len, const uint8_t *data);
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