display_timing.c revision 1.1.10.2
1 1.1.10.2 jdolecek /* $NetBSD: display_timing.c,v 1.1.10.2 2017/12/03 11:37:01 jdolecek Exp $ */ 2 1.1.10.2 jdolecek 3 1.1.10.2 jdolecek /*- 4 1.1.10.2 jdolecek * Copyright (c) 2017 Jared McNeill <jmcneill (at) invisible.ca> 5 1.1.10.2 jdolecek * All rights reserved. 6 1.1.10.2 jdolecek * 7 1.1.10.2 jdolecek * Redistribution and use in source and binary forms, with or without 8 1.1.10.2 jdolecek * modification, are permitted provided that the following conditions 9 1.1.10.2 jdolecek * are met: 10 1.1.10.2 jdolecek * 1. Redistributions of source code must retain the above copyright 11 1.1.10.2 jdolecek * notice, this list of conditions and the following disclaimer. 12 1.1.10.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.10.2 jdolecek * notice, this list of conditions and the following disclaimer in the 14 1.1.10.2 jdolecek * documentation and/or other materials provided with the distribution. 15 1.1.10.2 jdolecek * 16 1.1.10.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.1.10.2 jdolecek * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.1.10.2 jdolecek * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.1.10.2 jdolecek * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.1.10.2 jdolecek * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 1.1.10.2 jdolecek * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.1.10.2 jdolecek * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 1.1.10.2 jdolecek * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 1.1.10.2 jdolecek * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.1.10.2 jdolecek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.1.10.2 jdolecek * SUCH DAMAGE. 27 1.1.10.2 jdolecek */ 28 1.1.10.2 jdolecek 29 1.1.10.2 jdolecek #include <sys/cdefs.h> 30 1.1.10.2 jdolecek __KERNEL_RCSID(0, "$NetBSD: display_timing.c,v 1.1.10.2 2017/12/03 11:37:01 jdolecek Exp $"); 31 1.1.10.2 jdolecek 32 1.1.10.2 jdolecek #include <sys/param.h> 33 1.1.10.2 jdolecek #include <sys/systm.h> 34 1.1.10.2 jdolecek #include <sys/device.h> 35 1.1.10.2 jdolecek #include <sys/kmem.h> 36 1.1.10.2 jdolecek #include <sys/bus.h> 37 1.1.10.2 jdolecek 38 1.1.10.2 jdolecek #include <dev/fdt/fdtvar.h> 39 1.1.10.2 jdolecek #include <dev/fdt/display_timing.h> 40 1.1.10.2 jdolecek 41 1.1.10.2 jdolecek #define GETPROP(n, v) \ 42 1.1.10.2 jdolecek of_getprop_uint32(phandle, (n), (v)) 43 1.1.10.2 jdolecek 44 1.1.10.2 jdolecek int 45 1.1.10.2 jdolecek display_timing_parse(int phandle, struct display_timing *timing) 46 1.1.10.2 jdolecek { 47 1.1.10.2 jdolecek if (GETPROP("clock-frequency", &timing->clock_freq) || 48 1.1.10.2 jdolecek GETPROP("hactive", &timing->hactive) || 49 1.1.10.2 jdolecek GETPROP("vactive", &timing->vactive) || 50 1.1.10.2 jdolecek GETPROP("hfront-porch", &timing->hfront_porch) || 51 1.1.10.2 jdolecek GETPROP("hback-porch", &timing->hback_porch) || 52 1.1.10.2 jdolecek GETPROP("hsync-len", &timing->hsync_len) || 53 1.1.10.2 jdolecek GETPROP("vfront-porch", &timing->vfront_porch) || 54 1.1.10.2 jdolecek GETPROP("vback-porch", &timing->vback_porch) || 55 1.1.10.2 jdolecek GETPROP("vsync-len", &timing->vsync_len)) 56 1.1.10.2 jdolecek return EINVAL; 57 1.1.10.2 jdolecek 58 1.1.10.2 jdolecek return 0; 59 1.1.10.2 jdolecek } 60
Indexes created Mon Sep 29 13:09:55 GMT 2025