From c491f8e99349e4022fac0dec6536ab4b43396507 Mon Sep 17 00:00:00 2001 From: Pascal Rigaux Date: Wed, 23 Feb 2005 17:33:43 +0000 Subject: *** empty log message *** --- .cvsignore | 1 + COPYING | 483 +++++++++++++++++++++++++++++++++++++++++++++++++++++ Makefile | 84 ++++++++++ README | 16 ++ get-edid.h | 1 + minifind.c | 77 +++++++++ minifind.h | 42 +++++ monitor-edid | 2 + monitor-edid.spec | 40 +++++ monitor-get-edid.c | 20 +++ monitor-parse-edid | 279 +++++++++++++++++++++++++++++++ open_firmware.c | 55 ++++++ vbe.c | 214 ++++++++++++++++++++++++ 13 files changed, 1314 insertions(+) create mode 100644 .cvsignore create mode 100644 COPYING create mode 100644 Makefile create mode 100644 README create mode 100644 get-edid.h create mode 100644 minifind.c create mode 100644 minifind.h create mode 100755 monitor-edid create mode 100644 monitor-edid.spec create mode 100644 monitor-get-edid.c create mode 100755 monitor-parse-edid create mode 100644 open_firmware.c create mode 100644 vbe.c diff --git a/.cvsignore b/.cvsignore new file mode 100644 index 0000000..0efe259 --- /dev/null +++ b/.cvsignore @@ -0,0 +1 @@ +monitor-get-edid diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..0b643ac --- /dev/null +++ b/COPYING @@ -0,0 +1,483 @@ + + GNU LIBRARY GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1991 Free Software Foundation, Inc. + 675 Mass Ave, Cambridge, MA 02139, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the library GPL. 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diff --git a/minifind.c b/minifind.c new file mode 100644 index 0000000..f483055 --- /dev/null +++ b/minifind.c @@ -0,0 +1,77 @@ +/* minifind.c -- simple find library + * + * Copyright (c) 2002 Terra Soft Solutions, Inc. + * Written by Dan Burcaw + * + * This software may be freely redistributed under the terms of the GNU + * library public license. + * + * You should have received a copy of the GNU Library Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include "minifind.h" + +// insert a node at head of linked-list +void insert_node(struct pathNode *n, char *path) +{ + struct pathNode *new = (struct pathNode *) malloc(sizeof(struct pathNode)); + new->path = path; + new->next = n->next; + n->next = new; +} + +// return input strip less last character +char *stripLastChar(char *in) +{ + char *out = malloc(sizeof(char)*strlen(in)); + snprintf(out, strlen(in) - 1, "%s", in); + return out; +} + +// do the work +char *minifind(char *dir, char *search, struct findNode *list) +{ + char *d = NULL; + int n; + struct dirent **namelist; + struct stat buf; + + if (dir[strlen(dir)-1] == '/') + dir = stripLastChar(dir); + + // check is there is an exact filematch to dir + // when search is not specified + if (search == NULL) + { + if (lstat(dir, &buf) == 0) + insert_node(list->result, dir); + return 0; + } + + n = scandir(dir, &namelist, 0, alphasort); + if (n >= 0) + { + while (n--) + { + d = malloc(sizeof(char) * (strlen(dir) \ + + strlen(namelist[n]->d_name)+1)); + sprintf(d, "%s/%s", dir, namelist[n]->d_name); + if (strstr(namelist[n]->d_name, search)) + insert_node(list->result, d); + + if ((lstat(d, &buf) == 0) && S_ISDIR(buf.st_mode)) + { + if (strcmp(namelist[n]->d_name, ".") && + strcmp(namelist[n]->d_name, "..")) + d = minifind(d, search, list); + } + free(namelist[n]); + } + free(namelist); + return d; + } + return 0; +} diff --git a/minifind.h b/minifind.h new file mode 100644 index 0000000..4f72525 --- /dev/null +++ b/minifind.h @@ -0,0 +1,42 @@ +/* minifind.h + * + * Copyright (c) 2002 Terra Soft Solutions, Inc. + * Written by Dan Burcaw + * + * This software may be freely redistributed under the terms of the GNU + * library public license. + * + * You should have received a copy of the GNU Library Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef MINIFIND_H +#define MINIFIND_H + +#include +#include +#include +#include +#include +#include +#include + +struct pathNode +{ + char *path; + struct pathNode *next; +}; + +struct findNode +{ + struct pathNode *result; + struct pathNode *exclude; +}; + +void insert_node(struct pathNode *n, char *path); +char *stripLastChar(char *in); +char *minifind(char *dir, char *search, struct findNode *list); + +#endif /* MINIFIND_H */ diff --git a/monitor-edid b/monitor-edid new file mode 100755 index 0000000..4e183b2 --- /dev/null +++ b/monitor-edid @@ -0,0 +1,2 @@ +#!/bin/sh +monitor-get-edid | monitor-parse-edid "$@" diff --git a/monitor-edid.spec b/monitor-edid.spec new file mode 100644 index 0000000..978d2f5 --- /dev/null +++ b/monitor-edid.spec @@ -0,0 +1,40 @@ +%define name monitor-edid +%define version 1.0 +%define release 1mdk + +Summary: Get monitor details +Name: %{name} +Version: %{version} +Release: %{release} +Source0: %{name}-%{version}.tar.bz2 +License: GPL +Group: System/Configuration/Other +Url: http://www.mandrakelinux.com/cgi-bin/cvsweb.cgi/soft/monitor-edid +BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-buildroot + +%description +This package will try to read the monitor details directly from the +monitor. + +%prep +%setup -q + +%build +make + +%install +rm -rf $RPM_BUILD_ROOT +install -d $RPM_BUILD_ROOT%_sbindir +install monitor-edid monitor-get-edid monitor-parse-edid $RPM_BUILD_ROOT%_sbindir + +%clean +rm -rf $RPM_BUILD_ROOT + +%files +%defattr(-,root,root) +%doc README +%_sbindir/* + +%changelog +* Wed Feb 23 2005 Pixel 1.0-1mdk +- first package diff --git a/monitor-get-edid.c b/monitor-get-edid.c new file mode 100644 index 0000000..ed5b480 --- /dev/null +++ b/monitor-get-edid.c @@ -0,0 +1,20 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "get-edid.h" + +int main(void) +{ + char edid[256]; + int size = get_edid(edid); + + if (size) write(1, edid, size); + + return size ? 0 : 1; +} diff --git a/monitor-parse-edid b/monitor-parse-edid new file mode 100755 index 0000000..b4b377c --- /dev/null +++ b/monitor-parse-edid @@ -0,0 +1,279 @@ +#!/usr/bin/perl + +my @edid_info = group_by2( + a8 => '_header', + a2 => 'manufacturer_name', + + v => 'product_code', + V => 'serial_number', + C => 'week', + C => 'year', + C => 'edid_version', + C => 'edid_revision', + a => 'video_input_definition', + + C => 'max_size_horizontal', # in cm + C => 'max_size_vertical', # in cm + C => 'gamma', + a => 'feature_support', + a10 => '_color_characteristics', + a3 => '_established_timings', + a16 => '_standard_timings', + a72 => 'monitor_details', + + C => 'extension_flag', + C => 'checksum', +); + +my %subfields = ( + manufacturer_name => [ group_by2( + 1 => '', + 5 => '1', + 5 => '2', + 5 => '3', + ) ], + + video_input_definition => [ group_by2( + 1 => 'digital', + 1 => 'separate_sync', + 1 => 'composite_sync', + 1 => 'sync_on_green', + 2 => '', + 2 => 'voltage_level', + ) ], + + feature_support => [ group_by2( + 1 => 'DPMS_standby', + 1 => 'DPMS_suspend', + 1 => 'DPMS_active_off', + 1 => '', + 1 => 'rgb', + ) ], + + detailed_timing => [ group_by2( + 8 => 'horizontal_active', + 8 => 'horizontal_blanking', + 4 => 'horizontal_active_hi', + 4 => 'horizontal_blanking_hi', + 8 => 'vertical_active', + 8 => 'vertical_blanking', + 4 => 'vertical_active_hi', + 4 => 'vertical_blanking_hi', + 8 => 'horizontal_sync_offset', + 8 => 'horizontal_sync_pulse_width', + 4 => 'vertical_sync_offset', + 4 => 'vertical_sync_pulse_width', + 2 => 'horizontal_sync_offset_hi', + 2 => 'horizontal_sync_pulse_width_hi', + 2 => 'vertical_sync_offset_hi', + 2 => 'vertical_sync_pulse_width_hi', + 8 => 'horizontal_image_size', # in mm + 8 => 'vertical_image_size', # in mm + 4 => 'horizontal_image_size_hi', + 4 => 'vertical_image_size_hi', + 8 => 'horizontal_border', + 8 => 'vertical_border', + + 1 => 'interlaced', + 2 => 'stereo', + 2 => 'digital_composite', + 1 => 'horizontal_sync_positive', + 1 => 'vertical_sync_positive', + 1 => '', + ) ], + + monitor_range => [ group_by2( + 8 => 'vertical_min', + 8 => 'vertical_max', + 8 => 'horizontal_min', + 8 => 'horizontal_max', + 8 => 'pixel_clock_max', + ) ], +); + +sub get_many_bits { + my ($s, $field_name) = @_; + my @bits = split('', unpack('B*', $s)); + my %h; + foreach (@{$subfields{$field_name}}) { + my ($size, $field) = @$_; + my @l = ('0' x (8 - $size), splice(@bits, 0, $size)); + $h{$field} = unpack("C", pack('B*', join('', @l))) if $field && $field !~ /^_/; + } + \%h; +} + +sub check_parsed_edid { + my ($edid) = @_; + + $edid->{manufacturer_name} ne '@@@' or return 'bad manufacturer_name'; + $edid->{product_code} != 0 or return 'bad product_code'; + $edid->{edid_version} != 0xff && $edid->{edid_revision} != 0xff or return 'bad edid_version'; + + if ($edid->{monitor_range}) { + $edid->{monitor_range}{horizontal_min} && + $edid->{monitor_range}{horizontal_min} <= $edid->{monitor_range}{horizontal_max} + or return 'bad HorizSync'; + $edid->{monitor_range}{vertical_min} && + $edid->{monitor_range}{vertical_min} <= $edid->{monitor_range}{vertical_max} + or return 'bad VertRefresh'; + } + + ''; +} + +sub parse_edid { + my ($raw_edid) = @_; + + my %edid; + my @vals = unpack(join('', map { $_->[0] } @edid_info), $raw_edid); + my $i; + foreach (@edid_info) { + my ($field, $v) = ($_->[1], $vals[$i++]); + + if ($field eq 'year') { + $v += 1990; + } elsif ($field eq 'manufacturer_name') { + my $h = get_many_bits($v, 'manufacturer_name'); + $v = join('', map { chr(ord('A') + $h->{$_} - 1) } 1 .. 3); + } elsif ($field eq 'video_input_definition') { + $v = get_many_bits($v, 'video_input_definition'); + } elsif ($field eq 'feature_support') { + $v = get_many_bits($v, 'feature_support'); + } elsif ($field eq 'monitor_details') { + while ($v) { + (my $pixel_clock, my $vv, $v) = unpack("v a16 a*", $v); + + if ($pixel_clock) { + # detailed timing + my $h = get_many_bits($vv, 'detailed_timing'); + $h->{pixel_clock} = $pixel_clock / 100; # to have it in MHz + + my %detailed_timing_field_size = map { $_->[1], $_->[0] } @{$subfields{detailed_timing}}; + foreach my $field (keys %detailed_timing_field_size) { + $field =~ s/_hi$// or next; + my $hi = delete($h->{$field . '_hi'}); + $h->{$field} += $hi << $detailed_timing_field_size{$field}; + } + push @{$edid{detailed_timings}}, $h; + } else { + (my $flag, $vv) = unpack("n x a*", $vv); + + if ($flag == 0xfd) { + # range + $edid{monitor_range} = get_many_bits($vv, 'monitor_range'); + if ($edid{monitor_range}{pixel_clock_max} == 0xff) { + delete $edid{monitor_range}{pixel_clock_max}; + } else { + $edid{monitor_range}{pixel_clock_max} *= 10; #- to have it in MHz + } + } elsif ($flag == 0xfc) { + my $prev = $edid{monitor_name}; + $edid{monitor_name} = ($prev ? "$prev " : '') . unpack('A13', $vv); + } elsif ($flag == 0xfe) { + push @{$edid{monitor_text}}, unpack('A13', $vv); + } elsif ($flag == 0xff) { + push @{$edid{serial_number2}}, unpack('A13', $vv); + } else { + #warn "parse_edid: unknown flag $flag\n"; + } + } + } + } + + $edid{$field} = $v if $field && $field !~ /^_/; + } + + $edid{EISA} = $edid{manufacturer_name} . sprintf('%x', $edid{product_code}); + + \%edid; +} + +sub print_edid { + my ($edid) = @_; + my $diagonal_inches = sqrt(sqr($edid->{max_size_horizontal}) + + sqr($edid->{max_size_vertical})) / 2.54; + + print "Name: $edid->{monitor_name}\n"; + print "EISA ID: $edid->{EISA}\n"; + printf "Screen size: %d cm x %d cm (%3.2f inches)\n", $edid->{max_size_horizontal}, $edid->{max_size_vertical}, $diagonal_inches * 1.08; + + print "Gamma: ", $edid->{gamma} / 100 + 1, "\n"; + printf "%s signal\n", $edid->{video_input_definition}{digital} ? 'Digital' : 'Analog'; + + if ($edid->{monitor_range}) { + printf "Max video bandwidth: %u MHz\n", $edid->{monitor_range}{pixel_clock_max}; + print "\n"; + printf "\tHorizSync %u-%u\n", $edid->{monitor_range}{horizontal_min}, $edid->{monitor_range}{horizontal_max}; + printf "\tVertRefresh %u-%u\n", $edid->{monitor_range}{vertical_min}, $edid->{monitor_range}{vertical_max}; + } + + foreach my $h (@{$edid->{detailed_timings}}) { + my $horizontal_total = $h->{horizontal_active} + $h->{horizontal_blanking}; + my $vertical_total = $h->{vertical_active} + $h->{vertical_blanking}; + + print "\n"; + printf qq(\t# %dx%d @ %.1f Hz, %.1f kHz hsync\n), + $h->{horizontal_active}, $h->{vertical_active}, + $h->{pixel_clock} / $horizontal_total / $vertical_total * 1000 * 1000, + $h->{pixel_clock} / $horizontal_total * 1000; + + printf qq(\tModeLine "%dx%d" $h->{pixel_clock} %d %d %d %d %d %d %d %d\n), + $h->{horizontal_active}, $h->{vertical_active}, + + $h->{horizontal_active}, + $h->{horizontal_active} + $h->{horizontal_sync_offset}, + $h->{horizontal_active} + $h->{horizontal_sync_offset} + $h->{horizontal_sync_pulse_width}, + $h->{horizontal_total}, + + $h->{vertical_active}, + $h->{vertical_active} + $h->{vertical_sync_offset}, + $h->{vertical_active} + $h->{vertical_sync_offset} + $h->{vertical_sync_pulse_width}, + $h->{vertical_total}; + } +} + +sub usage() { + die "usage: monitor-parse-edid [--perl] []\n"; +} + +use Getopt::Long; +GetOptions( + 'perl' => \ (my $raw_perl), +) or usage(); + +my $F; +if (@ARGV == 0) { + $F = *STDIN; +} elsif (@ARGV == 1) { + open($F, $ARGV[0]) or usage(); +} else { + usage(); +} + +my $raw_edid = join('', <$F>); + +length($raw_edid) == 128 || length($raw_edid) == 256 or die "parse-edid: bad edid length\n"; + +my $edid = parse_edid($raw_edid); +if (my $err = check_parsed_edid($edid)) { + die "$err\n"; +} + +if ($raw_perl) { + use Data::Dumper; + $Data::Dumper::Sortkeys = 1; + print Dumper($edid); +} else { + print_edid($edid); +} + + +sub sqr { $_[0] * $_[0] } +sub group_by2 { + my @l; + for (my $i = 0; $i < @_; $i += 2) { + push @l, [ $_[$i], $_[$i+1] ]; + } + @l; +} diff --git a/open_firmware.c b/open_firmware.c new file mode 100644 index 0000000..2170e70 --- /dev/null +++ b/open_firmware.c @@ -0,0 +1,55 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "get-edid.h" +#include "minifind.h" + +int get_edid(char *edid) +{ + struct pathNode *n; + struct findNode *list; + FILE* edid_file = NULL; + char *path = NULL; + + list = (struct findNode *) malloc(sizeof(struct findNode)); + list->result = (struct pathNode *) malloc(sizeof(struct pathNode)); + list->result->path = NULL; + list->result->next = list->result; + + minifind("/proc/device-tree", "EDID", list); + + for (n = list->result->next; n != list->result; n = n->next) + { + path = n->path; + break; + } + + if (path) + edid_file = fopen(path, "rb"); + + if (edid_file) + { + int size = fread(edid, sizeof(unsigned char), 0x80, edid_file); + fclose(edid_file); + return size == 0x80 ? 0x80 : 0; + } else + return 0; + +#if 0 + memcpy(&man, &ret->manufacturer_name, 2); + man = ntohs(man); + memcpy(&ret->manufacturer_name, &man, 2); + + /* byteswap to match the contents of MonitorsDB */ + ret->product_code = ((ret->product_code >> 8) & 0xff) | ((ret->product_code & 0xff) << 8); +#endif +} diff --git a/vbe.c b/vbe.c new file mode 100644 index 0000000..eb6c918 --- /dev/null +++ b/vbe.c @@ -0,0 +1,214 @@ +#include +#if defined(__i386__) || defined(__x86_64__) || defined(__ia64__) +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "get-edid.h" +#include "int10/vbios.h" + +#ifdef __i386__ +#define cpuemu 1 +#else +#define cpuemu 0 +#endif + +#include + +/* used by libint10 */ +void log_err(char *format, ...) +{ + va_list args; + va_start(args, format); + vfprintf(stderr, format, args); + va_end(args); +} + +#ifdef DEBUG +/* Record returned by int 0x10, function 0x4f, subfunction 0x00. */ +struct vbe_info { + unsigned int version; + unsigned int oem_version; + unsigned int memory_size; + char *oem_name; + char *vendor_name; + char *product_name; + char *product_revision; + unsigned int modes; + unsigned int mode_list[0x100]; +}; + +/* + * Create a 'canonical' version, i.e. no spaces at start and end. + * + * Note: removes chars >= 0x80 as well (due to (char *))! This + * is currently considered a feature. + */ +static char *canon_str(char *s, int len) +{ + char *m2, *m1, *m0 = malloc(len + 1); + int i; + + for(m1 = m0, i = 0; i < len; i++) { + if(m1 == m0 && s[i] <= ' ') continue; + *m1++ = s[i]; + } + *m1 = 0; + while(m1 > m0 && m1[-1] <= ' ') { + *--m1 = 0; + } + + m2 = strdup(m0); + free(m0); + + return m2; +} + +static unsigned segofs2addr(unsigned char *segofs) +{ + return segofs[0] + (segofs[1] << 8) + (segofs[2] << 4)+ (segofs[3] << 12); +} + + +static unsigned get_data(unsigned char *buf, unsigned buf_size, unsigned addr) +{ + unsigned bufferaddr = 0x7e00; + unsigned len; + + *buf = 0; + len = 0; + + if(addr >= bufferaddr && addr < bufferaddr + 0x200) { + len = bufferaddr + 0x200 - addr; + if(len >= buf_size) len = buf_size - 1; + memcpy(buf, addr + (char *) 0, len); + } + else if(addr >= 0x0c0000 && addr < 0x100000) { + len = 0x100000 - addr; + if(len >= buf_size) len = buf_size - 1; + memcpy(buf, addr + (char *) 0, len); + } + + buf[len] = 0; + + return len; +} +#endif + +#define GET_WORD(ADDR, OFS) ((ADDR)[OFS] + ((ADDR)[(OFS) + 1] << 8)) + +int vbe_check_vbe_info(void) +{ + int i; + unsigned char v[0x200]; + int ax, bx, cx; + + /* Setup registers for the interrupt call */ + ax = 0x4f00; + bx = 0; + cx = 0; + memset(v, 0, sizeof(v)); + strcpy(v, "VBE2"); + + /* Get VBE block */ + i = CallInt10(&ax, &bx, &cx, v, sizeof(v), cpuemu) & 0xffff; + if (i != 0x4f) { +#ifdef DEBUG + log_err("VBE: Error (0x4f00): 0x%04x\n", i); +#endif + return 0; + } + +#ifdef DEBUG + { + int l, u; + unsigned char tmp[1024]; + struct vbe_info vbe; + + /* Parse VBE block */ + vbe.version = GET_WORD(v, 0x04); + vbe.oem_version = GET_WORD(v, 0x14); + vbe.memory_size = GET_WORD(v, 0x12) << 16; + log_err("version = %u.%u, oem version = %u.%u\n", + vbe.version >> 8, vbe.version & 0xff, vbe.oem_version >> 8, vbe.oem_version & 0xff); + log_err("memory = %uk\n", vbe.memory_size >> 10); + + l = get_data(tmp, sizeof tmp, u = segofs2addr(v + 0x06)); + vbe.oem_name = canon_str(tmp, l); + log_err("oem name [0x%05x] = \"%s\"\n", u, vbe.oem_name); + + l = get_data(tmp, sizeof tmp, u = segofs2addr(v + 0x16)); + vbe.vendor_name = canon_str(tmp, l); + log_err("vendor name [0x%05x] = \"%s\"\n", u, vbe.vendor_name); + + l = get_data(tmp, sizeof tmp, u = segofs2addr(v + 0x1a)); + vbe.product_name = canon_str(tmp, l); + log_err("product name [0x%05x] = \"%s\"\n", u, vbe.product_name); + + l = get_data(tmp, sizeof tmp, u = segofs2addr(v + 0x1e)); + vbe.product_revision = canon_str(tmp, l); + log_err("product revision [0x%05x] = \"%s\"\n", u, vbe.product_revision); + + l = get_data(tmp, sizeof tmp, u = segofs2addr(v + 0x0e)) >> 1; + for(i = vbe.modes = 0; i < l && i < sizeof vbe.mode_list / sizeof *vbe.mode_list; i++) { + u = GET_WORD(tmp, 2 * i); + if(u != 0xffff) + vbe.mode_list[vbe.modes++] = u; + else + break; + } + log_err("%u video modes\n", vbe.modes); + } +#endif + return 1; +} + +/* Get EDID info. */ +int vbe_get_edid_info(char *edid) +{ + int i; + int ax, bx, cx; + + /* Setup registers for the interrupt call */ + ax = 0x4f15; + bx = 1; + cx = 0; + + /* Get EDID block */ + i = CallInt10(&ax, &bx, &cx, edid, 256, cpuemu) & 0xffff; + if (i != 0x4f) { +#ifdef DEBUG + log_err("EDID: Error (0x4f15): 0x%04x\n", i); +#endif + return 0; + } + + return 1; +} + +int get_edid(char *edid) +{ + int pci_config_type = 1; /* Determine PCI configuration type */ + int ok; + + /* Initialize Int10 */ + ok = InitInt10(pci_config_type) == 0; + + if (ok) { + ok = + vbe_check_vbe_info() && + vbe_get_edid_info(edid); + + FreeInt10(); + } + + return ok ? 128 : 0; +} -- cgit v1.2.1