#include <linux/tty.h>
#include <linux/fb.h>
#include <linux/module.h>
+#include <video/edid.h>
#ifdef CONFIG_PPC_OF
#include <linux/pci.h>
#include <asm/prom.h>
return 0;
}
-static void calc_mode_timings(int xres, int yres, int refresh, struct fb_videomode *mode)
+static void calc_mode_timings(int xres, int yres, int refresh,
+ struct fb_videomode *mode)
{
struct fb_var_screeninfo var;
struct fb_info info;
+ memset(&var, 0, sizeof(struct fb_var_screeninfo));
var.xres = xres;
var.yres = yres;
fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON,
*dbsize = 0;
- DPRINTK(" Supported VESA Modes\n");
- block = edid + ESTABLISHED_TIMING_1;
- num += get_est_timing(block, &mode[num]);
-
- DPRINTK(" Standard Timings\n");
- block = edid + STD_TIMING_DESCRIPTIONS_START;
- for (i = 0; i < STD_TIMING; i++, block += STD_TIMING_DESCRIPTION_SIZE)
- num += get_std_timing(block, &mode[num]);
-
DPRINTK(" Detailed Timings\n");
block = edid + DETAILED_TIMING_DESCRIPTIONS_START;
for (i = 0; i < 4; i++, block+= DETAILED_TIMING_DESCRIPTION_SIZE) {
int first = 1;
- if (block[0] == 0x00 && block[1] == 0x00) {
- if (block[3] == 0xfa) {
- num += get_dst_timing(block + 5, &mode[num]);
- }
- } else {
+ if (!(block[0] == 0x00 && block[1] == 0x00)) {
get_detailed_timing(block, &mode[num]);
if (first) {
mode[num].flag |= FB_MODE_IS_FIRST;
num++;
}
}
+
+ DPRINTK(" Supported VESA Modes\n");
+ block = edid + ESTABLISHED_TIMING_1;
+ num += get_est_timing(block, &mode[num]);
+
+ DPRINTK(" Standard Timings\n");
+ block = edid + STD_TIMING_DESCRIPTIONS_START;
+ for (i = 0; i < STD_TIMING; i++, block += STD_TIMING_DESCRIPTION_SIZE)
+ num += get_std_timing(block, &mode[num]);
+
+ block = edid + DETAILED_TIMING_DESCRIPTIONS_START;
+ for (i = 0; i < 4; i++, block+= DETAILED_TIMING_DESCRIPTION_SIZE) {
+ if (block[0] == 0x00 && block[1] == 0x00 && block[3] == 0xfa)
+ num += get_dst_timing(block + 5, &mode[num]);
+ }
/* Yikes, EDID data is totally useless */
if (!num) {
void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs)
{
unsigned char *block;
- int i;
+ int i, found = 0;
if (edid == NULL)
return;
get_monspecs(edid, specs);
specs->modedb = fb_create_modedb(edid, &specs->modedb_len);
+
+ /*
+ * Workaround for buggy EDIDs that sets that the first
+ * detailed timing is preferred but has not detailed
+ * timing specified
+ */
+ for (i = 0; i < specs->modedb_len; i++) {
+ if (specs->modedb[i].flag & FB_MODE_IS_DETAILED) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ specs->misc &= ~FB_MISC_1ST_DETAIL;
+
DPRINTK("========================================\n");
}
-EINVAL : 0;
}
+#if defined(__i386__)
+#include <linux/pci.h>
+
+/*
+ * We need to ensure that the EDID block is only returned for
+ * the primary graphics adapter.
+ */
+
+const unsigned char *fb_firmware_edid(struct device *device)
+{
+ struct pci_dev *dev = NULL;
+ struct resource *res = NULL;
+ unsigned char *edid = NULL;
+
+ if (device)
+ dev = to_pci_dev(device);
+
+ if (dev)
+ res = &dev->resource[PCI_ROM_RESOURCE];
+
+ if (res && res->flags & IORESOURCE_ROM_SHADOW)
+ edid = edid_info.dummy;
+
+ return edid;
+}
+#else
+const unsigned char *fb_firmware_edid(struct device *device)
+{
+ return NULL;
+}
+#endif /* _i386_ */
+
EXPORT_SYMBOL(fb_parse_edid);
EXPORT_SYMBOL(fb_edid_to_monspecs);
-
+EXPORT_SYMBOL(fb_firmware_edid);
EXPORT_SYMBOL(fb_get_mode);
EXPORT_SYMBOL(fb_validate_mode);
EXPORT_SYMBOL(fb_destroy_modedb);