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authorChris Wilson <chris@chris-wilson.co.uk>2011-01-29 16:12:38 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2011-01-29 16:13:38 +0000
commit281285ec702bceecaffbdcbc5c1a3cc4591e500c (patch)
treef2c32bfc0b46c34461d69a9dc3627210b7bc7dcb /tools/intel_bios_reader.c
parentafaf5ef27cafad5a0fc0ad2fb870e1a7ea8743a1 (diff)
bios: Parse SDVO panel DTDs
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'tools/intel_bios_reader.c')
-rw-r--r--tools/intel_bios_reader.c144
1 files changed, 123 insertions, 21 deletions
diff --git a/tools/intel_bios_reader.c b/tools/intel_bios_reader.c
index 9b6a231b..c4b39b09 100644
--- a/tools/intel_bios_reader.c
+++ b/tools/intel_bios_reader.c
@@ -51,20 +51,15 @@ static uint32_t devid;
#define _V_BLANK(x) (x[6] + ((x[7] & 0x0F) << 8))
#define _PIXEL_CLOCK(x) (x[0] + (x[1] << 8)) * 10000
-/* Make a fake pI830 so we can easily pull i830_bios.c code in here. */
-struct _fake_i830 {
- uint8_t *VBIOS;
-};
-struct _fake_i830 I830;
-struct _fake_i830 *pI830 = &I830;
+uint8_t *VBIOS;
-#define INTEL_BIOS_8(_addr) (pI830->VBIOS[_addr])
-#define INTEL_BIOS_16(_addr) (pI830->VBIOS[_addr] | \
- (pI830->VBIOS[_addr + 1] << 8))
-#define INTEL_BIOS_32(_addr) (pI830->VBIOS[_addr] | \
- (pI830->VBIOS[_addr + 1] << 8) | \
- (pI830->VBIOS[_addr + 2] << 16) | \
- (pI830->VBIOS[_addr + 3] << 24))
+#define INTEL_BIOS_8(_addr) (VBIOS[_addr])
+#define INTEL_BIOS_16(_addr) (VBIOS[_addr] | \
+ (VBIOS[_addr + 1] << 8))
+#define INTEL_BIOS_32(_addr) (VBIOS[_addr] | \
+ (VBIOS[_addr + 1] << 8) | \
+ (VBIOS[_addr + 2] << 16) | \
+ (VBIOS[_addr + 3] << 24))
#define YESNO(val) ((val) ? "yes" : "no")
@@ -727,6 +722,91 @@ static void dump_edp(void)
free(block);
}
+static void
+print_detail_timing_data(struct lvds_dvo_timing2 *dvo_timing)
+{
+ int display, sync_start, sync_end, total;
+
+ display = (dvo_timing->hactive_hi << 8) | dvo_timing->hactive_lo;
+ sync_start = display +
+ ((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo);
+ sync_end = sync_start + dvo_timing->hsync_pulse_width;
+ total = display +
+ ((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo);
+ printf("\thdisplay: %d\n", display);
+ printf("\thsync [%d, %d] %s\n", sync_start, sync_end,
+ dvo_timing->hsync_positive ? "+sync" : "-sync");
+ printf("\thtotal: %d\n", total);
+
+ display = (dvo_timing->vactive_hi << 8) | dvo_timing->vactive_lo;
+ sync_start = display + dvo_timing->vsync_off;
+ sync_end = sync_start + dvo_timing->vsync_pulse_width;
+ total = display +
+ ((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo);
+ printf("\tvdisplay: %d\n", display);
+ printf("\tvsync [%d, %d] %s\n", sync_start, sync_end,
+ dvo_timing->vsync_positive ? "+sync" : "-sync");
+ printf("\tvtotal: %d\n", total);
+
+ printf("\tclock: %d\n", dvo_timing->clock * 10);
+}
+
+static void dump_sdvo_panel_dtds(void)
+{
+ struct bdb_block *block;
+ struct lvds_dvo_timing2 *dvo_timing;
+ int n, count;
+
+ block = find_section(BDB_SDVO_PANEL_DTDS);
+ if (!block) {
+ printf("No SDVO panel dtds block\n");
+ return;
+ }
+
+ printf("SDVO panel dtds:\n");
+ count = block->size / sizeof(struct lvds_dvo_timing2);
+ dvo_timing = block->data;
+ for (n = 0; n < count; n++) {
+ printf("%d:\n", n);
+ print_detail_timing_data(dvo_timing++);
+ }
+
+ free(block);
+}
+
+static void dump_sdvo_lvds_options(void)
+{
+ struct bdb_block *block;
+ struct bdb_sdvo_lvds_options *options;
+
+ block = find_section(BDB_SDVO_LVDS_OPTIONS);
+ if (!block) {
+ printf("No SDVO LVDS options block\n");
+ return;
+ }
+
+ options = block->data;
+
+ printf("SDVO LVDS options block:\n");
+ printf("\tbacklight: %d\n", options->panel_backlight);
+ printf("\th40 type: %d\n", options->h40_set_panel_type);
+ printf("\ttype: %d\n", options->panel_type);
+ printf("\tssc_clk_freq: %d\n", options->ssc_clk_freq);
+ printf("\tals_low_trip: %d\n", options->als_low_trip);
+ printf("\tals_high_trip: %d\n", options->als_high_trip);
+ /*
+ u8 sclalarcoeff_tab_row_num;
+ u8 sclalarcoeff_tab_row_size;
+ u8 coefficient[8];
+ */
+ printf("\tmisc[0]: %x\n", options->panel_misc_bits_1);
+ printf("\tmisc[1]: %x\n", options->panel_misc_bits_2);
+ printf("\tmisc[2]: %x\n", options->panel_misc_bits_3);
+ printf("\tmisc[3]: %x\n", options->panel_misc_bits_4);
+
+ free(block);
+}
+
static int
get_device_id(unsigned char *bios)
{
@@ -773,17 +853,36 @@ int main(int argc, char **argv)
return 1;
}
- pI830->VBIOS = mmap(NULL, finfo.st_size, PROT_READ, MAP_SHARED, fd, 0);
- if (pI830->VBIOS == MAP_FAILED) {
- printf("failed to map \"%s\": %s\n", filename, strerror(errno));
- return 1;
+ if (finfo.st_size == 0) {
+ int len = 0, ret;
+ finfo.st_size = 8192;
+ VBIOS = malloc (finfo.st_size);
+ while ((ret = read(fd, VBIOS + len, finfo.st_size - len))) {
+ if (ret < 0) {
+ printf("failed to read \"%s\": %s\n", filename,
+ strerror(errno));
+ return 1;
+ }
+
+ len += ret;
+ if (len == finfo.st_size) {
+ finfo.st_size *= 2;
+ VBIOS = realloc(VBIOS, finfo.st_size);
+ }
+ }
+ } else {
+ VBIOS = mmap(NULL, finfo.st_size, PROT_READ, MAP_SHARED, fd, 0);
+ if (VBIOS == MAP_FAILED) {
+ printf("failed to map \"%s\": %s\n", filename, strerror(errno));
+ return 1;
+ }
}
/* Scour memory looking for the VBT signature */
for (i = 0; i + 4 < finfo.st_size; i++) {
- if (!memcmp(pI830->VBIOS + i, "$VBT", 4)) {
+ if (!memcmp(VBIOS + i, "$VBT", 4)) {
vbt_off = i;
- vbt = (struct vbt_header *)(pI830->VBIOS + i);
+ vbt = (struct vbt_header *)(VBIOS + i);
break;
}
}
@@ -796,7 +895,7 @@ int main(int argc, char **argv)
printf("VBT vers: %d.%d\n", vbt->version / 100, vbt->version % 100);
bdb_off = vbt_off + vbt->bdb_offset;
- bdb = (struct bdb_header *)(pI830->VBIOS + bdb_off);
+ bdb = (struct bdb_header *)(VBIOS + bdb_off);
strncpy(signature, (char *)bdb->signature, 16);
signature[16] = 0;
printf("BDB sig: %s\n", signature);
@@ -812,7 +911,7 @@ int main(int argc, char **argv)
}
printf("\n");
- devid = get_device_id(pI830->VBIOS);
+ devid = get_device_id(VBIOS);
if (devid == -1)
printf("Warning: could not find PCI device ID!\n");
@@ -824,6 +923,9 @@ int main(int argc, char **argv)
dump_lvds_ptr_data();
dump_backlight_info();
+ dump_sdvo_lvds_options();
+ dump_sdvo_panel_dtds();
+
dump_driver_feature();
dump_edp();