summaryrefslogtreecommitdiffstats
path: root/tools/ddcprobe/vbe.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/ddcprobe/vbe.c')
-rw-r--r--tools/ddcprobe/vbe.c411
1 files changed, 0 insertions, 411 deletions
diff --git a/tools/ddcprobe/vbe.c b/tools/ddcprobe/vbe.c
deleted file mode 100644
index b710c79bb..000000000
--- a/tools/ddcprobe/vbe.c
+++ /dev/null
@@ -1,411 +0,0 @@
-#include <sys/types.h>
-#if defined(__i386__) || defined(__x86_64__) || defined(__ia64__)
-#include <sys/io.h>
-#endif
-#include <sys/mman.h>
-#include <netinet/in.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <assert.h>
-#include <limits.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include "vesamode.h"
-#include "vbe.h"
-#ifdef HAVE_VBE
-#include "int10/vbios.h"
-#endif
-
-#define DEBUG 0
-#if DEBUG
-#define bug printf
-#define D(X) X
-#else
-#define D(X)
-#endif
-
-#ifdef __i386__
-#define cpuemu 1
-#else
-#define cpuemu 0
-#endif
-
-#ifdef HAVE_VBE
-/*
- * 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;
-}
-
-#define GET_WORD(ADDR, OFS) ((ADDR)[OFS] + ((ADDR)[(OFS) + 1] << 8))
-
-int vbe_get_vbe_info(struct vbe_info *vbe)
-{
- int i, l, u;
- unsigned char v[0x200];
- unsigned char tmp[1024];
- int ax, bx, cx;
-
- if (vbe == NULL)
- return 0;
-
- /* 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) {
- D(bug("VBE: Error (0x4f00): 0x%04x\n", i));
- return 0;
- }
-
- /* Parse VBE block */
- vbe->version = GET_WORD(v, 0x04);
- vbe->oem_version = GET_WORD(v, 0x14);
- vbe->memory_size = GET_WORD(v, 0x12) << 16;
- D(bug("version = %u.%u, oem version = %u.%u\n",
- vbe->version >> 8, vbe->version & 0xff, vbe->oem_version >> 8, vbe->oem_version & 0xff));
- D(bug("memory = %uk\n", vbe->memory_size >> 10));
-
- l = get_data(tmp, sizeof tmp, u = segofs2addr(v + 0x06));
- vbe->oem_name = canon_str(tmp, l);
- D(bug("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);
- D(bug("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);
- D(bug("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);
- D(bug("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;
- }
- D(bug("%u video modes\n", vbe->modes));
-
- return 1;
-}
-
-/* Get EDID info. */
-int vbe_get_edid_info(struct vbe_edid1_info *edid)
-{
- int i;
- int ax, bx, cx;
-
- if (edid == NULL)
- return 0;
-
- /* Setup registers for the interrupt call */
- ax = 0x4f15;
- bx = 1;
- cx = 0;
-
- /* Get EDID block */
- i = CallInt10(&ax, &bx, &cx, (unsigned char *)edid, sizeof *edid, cpuemu) & 0xffff;
- if (i != 0x4f) {
- D(bug("EDID: Error (0x4f15): 0x%04x\n", i));
- return 0;
- }
-
- edid->manufacturer_name.p = ntohs(edid->manufacturer_name.p);
- return 1;
-}
-#endif
-
-/* Just read ranges from the EDID. */
-void vbe_get_edid_ranges(struct vbe_edid1_info *edid,
- unsigned char *hmin, unsigned char *hmax,
- unsigned char *vmin, unsigned char *vmax)
-{
- struct vbe_edid_monitor_descriptor *monitor;
- int i;
-
- *hmin = *hmax = *vmin = *vmax = 0;
-
- for(i = 0; i < 4; i++) {
- monitor = &edid->monitor_details.monitor_descriptor[i];
- if(monitor->type == vbe_edid_monitor_descriptor_range) {
- *hmin = monitor->data.range_data.horizontal_min;
- *hmax = monitor->data.range_data.horizontal_max;
- *vmin = monitor->data.range_data.vertical_min;
- *vmax = monitor->data.range_data.vertical_max;
- }
- }
-}
-
-static int compare_vbe_modelines(const void *m1, const void *m2)
-{
- const struct vbe_modeline *M1 = (const struct vbe_modeline*) m1;
- const struct vbe_modeline *M2 = (const struct vbe_modeline*) m2;
- if(M1->width < M2->width) return -1;
- if(M1->width > M2->width) return 1;
- return 0;
-}
-
-struct vbe_modeline *vbe_get_edid_modelines(struct vbe_edid1_info *edid)
-{
- struct vbe_modeline *ret;
- char buf[LINE_MAX];
- int modeline_count = 0, i, j;
-
- if (edid == NULL)
- return NULL;
-
- memcpy(buf, &edid->established_timings,
- sizeof(edid->established_timings));
- for(i = 0; i < (8 * sizeof(edid->established_timings)); i++) {
- if(buf[i / 8] & (1 << (i % 8))) {
- modeline_count++;
- }
- }
-
- /* Count the number of standard timings. */
- for(i = 0; i < 8; i++) {
- int x, v;
- x = edid->standard_timing[i].xresolution;
- v = edid->standard_timing[i].vfreq;
- if(((edid->standard_timing[i].xresolution & 0x01) != x) &&
- ((edid->standard_timing[i].vfreq & 0x01) != v)) {
- modeline_count++;
- }
- }
-
- ret = malloc(sizeof(struct vbe_modeline) * (modeline_count + 1));
- if(ret == NULL) {
- return NULL;
- }
- memset(ret, 0, sizeof(struct vbe_modeline) * (modeline_count + 1));
-
- modeline_count = 0;
-
- /* Fill out established timings. */
- if(edid->established_timings.timing_720x400_70) {
- ret[modeline_count].width = 720;
- ret[modeline_count].height = 400;
- ret[modeline_count].refresh = 70;
- modeline_count++;
- }
- if(edid->established_timings.timing_720x400_88) {
- ret[modeline_count].width = 720;
- ret[modeline_count].height = 400;
- ret[modeline_count].refresh = 88;
- modeline_count++;
- }
- if(edid->established_timings.timing_640x480_60) {
- ret[modeline_count].width = 640;
- ret[modeline_count].height = 480;
- ret[modeline_count].refresh = 60;
- modeline_count++;
- }
- if(edid->established_timings.timing_640x480_67) {
- ret[modeline_count].width = 640;
- ret[modeline_count].height = 480;
- ret[modeline_count].refresh = 67;
- modeline_count++;
- }
- if(edid->established_timings.timing_640x480_72) {
- ret[modeline_count].width = 640;
- ret[modeline_count].height = 480;
- ret[modeline_count].refresh = 72;
- modeline_count++;
- }
- if(edid->established_timings.timing_640x480_75) {
- ret[modeline_count].width = 640;
- ret[modeline_count].height = 480;
- ret[modeline_count].refresh = 75;
- modeline_count++;
- }
- if(edid->established_timings.timing_800x600_56) {
- ret[modeline_count].width = 800;
- ret[modeline_count].height = 600;
- ret[modeline_count].refresh = 56;
- modeline_count++;
- }
- if(edid->established_timings.timing_800x600_60) {
- ret[modeline_count].width = 800;
- ret[modeline_count].height = 600;
- ret[modeline_count].refresh = 60;
- modeline_count++;
- }
- if(edid->established_timings.timing_800x600_72) {
- ret[modeline_count].width = 800;
- ret[modeline_count].height = 600;
- ret[modeline_count].refresh = 72;
- modeline_count++;
- }
- if(edid->established_timings.timing_800x600_75) {
- ret[modeline_count].width = 800;
- ret[modeline_count].height = 600;
- ret[modeline_count].refresh = 75;
- modeline_count++;
- }
- if(edid->established_timings.timing_832x624_75) {
- ret[modeline_count].width = 832;
- ret[modeline_count].height = 624;
- ret[modeline_count].refresh = 75;
- modeline_count++;
- }
- if(edid->established_timings.timing_1024x768_87i) {
- ret[modeline_count].width = 1024;
- ret[modeline_count].height = 768;
- ret[modeline_count].refresh = 87;
- ret[modeline_count].interlaced = 1;
- modeline_count++;
- }
- if(edid->established_timings.timing_1024x768_60){
- ret[modeline_count].width = 1024;
- ret[modeline_count].height = 768;
- ret[modeline_count].refresh = 60;
- modeline_count++;
- }
- if(edid->established_timings.timing_1024x768_70){
- ret[modeline_count].width = 1024;
- ret[modeline_count].height = 768;
- ret[modeline_count].refresh = 70;
- modeline_count++;
- }
- if(edid->established_timings.timing_1024x768_75){
- ret[modeline_count].width = 1024;
- ret[modeline_count].height = 768;
- ret[modeline_count].refresh = 75;
- modeline_count++;
- }
- if(edid->established_timings.timing_1280x1024_75) {
- ret[modeline_count].width = 1280;
- ret[modeline_count].height = 1024;
- ret[modeline_count].refresh = 75;
- modeline_count++;
- }
-
- /* Add in standard timings. */
- for(i = 0; i < 8; i++) {
- float aspect = 1;
- int x, v;
- x = edid->standard_timing[i].xresolution;
- v = edid->standard_timing[i].vfreq;
- if(((edid->standard_timing[i].xresolution & 0x01) != x) &&
- ((edid->standard_timing[i].vfreq & 0x01) != v)) {
- switch(edid->standard_timing[i].aspect) {
- case aspect_75: aspect = 0.7500; break;
- case aspect_8: aspect = 0.8000; break;
- case aspect_5625: aspect = 0.5625; break;
- default: aspect = 1; break;
- }
- x = (edid->standard_timing[i].xresolution + 31) * 8;
- ret[modeline_count].width = x;
- ret[modeline_count].height = x * aspect;
- ret[modeline_count].refresh =
- edid->standard_timing[i].vfreq + 60;
- modeline_count++;
- }
- }
-
- /* Now tack on any matching modelines. */
- for(i = 0; ret[i].refresh != 0; i++) {
- struct vesa_timing_t *t = NULL;
- for(j = 0; known_vesa_timings[j].refresh != 0; j++) {
- t = &known_vesa_timings[j];
- if(ret[i].width == t->x)
- if(ret[i].height == t->y)
- if(ret[i].refresh == t->refresh) {
- snprintf(buf, sizeof(buf),
- "ModeLine \"%dx%d\"\t%6.2f "
- "%4d %4d %4d %4d %4d %4d %4d %4d %s %s"
- , t->x, t->y, t->dotclock,
- t->timings[0],
- t->timings[0] + t->timings[1],
- t->timings[0] + t->timings[1] +
- t->timings[2],
- t->timings[0] + t->timings[1] +
- t->timings[2] + t->timings[3],
- t->timings[4],
- t->timings[4] + t->timings[5],
- t->timings[4] + t->timings[5] +
- t->timings[6],
- t->timings[4] + t->timings[5] +
- t->timings[6] + t->timings[7],
- t->hsync == hsync_pos ?
- "+hsync" : "-hsync",
- t->vsync == vsync_pos ?
- "+vsync" : "-vsync");
- ret[i].modeline = strdup(buf);
- ret[i].hfreq = t->hfreq;
- ret[i].vfreq = t->vfreq;
- }
- }
- }
-
- modeline_count = 0;
- for(i = 0; ret[i].refresh != 0; i++) {
- modeline_count++;
- }
- qsort(ret, modeline_count, sizeof(ret[0]), compare_vbe_modelines);
-
- return ret;
-}
generated by cgit v1.2.1 (git 2.21.0) at 2024-11-23 03:51:42 +0000