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-rw-r--r--tools/intel_bios_reader.c537
1 files changed, 273 insertions, 264 deletions
diff --git a/tools/intel_bios_reader.c b/tools/intel_bios_reader.c
index 493fb637..173772bf 100644
--- a/tools/intel_bios_reader.c
+++ b/tools/intel_bios_reader.c
@@ -36,7 +36,9 @@
#include <sys/types.h>
#include "intel_bios.h"
-#include "intel_gpu_tools.h"
+#include "intel_io.h"
+#include "intel_chipset.h"
+#include "drmtest.h"
static uint32_t devid = -1;
@@ -70,6 +72,7 @@ struct bdb_block {
};
struct bdb_header *bdb;
+struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs;
static int tv_present;
static int lvds_present;
static int panel_type;
@@ -115,19 +118,9 @@ static struct bdb_block *find_section(int section_id, int length)
return NULL;
}
-static void dump_general_features(int length)
+static void dump_general_features(const struct bdb_block *block)
{
- struct bdb_general_features *features;
- struct bdb_block *block;
-
- block = find_section(BDB_GENERAL_FEATURES, length);
-
- if (!block)
- return;
-
- features = block->data;
-
- printf("General features block:\n");
+ struct bdb_general_features *features = block->data;
printf("\tPanel fitting: ");
switch (features->panel_fitting) {
@@ -172,25 +165,13 @@ static void dump_general_features(int length)
tv_present = 1; /* should be based on whether TV DAC exists */
lvds_present = 1; /* should be based on IS_MOBILE() */
-
- free(block);
}
-static void dump_backlight_info(int length)
+static void dump_backlight_info(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_lvds_backlight *backlight;
+ struct bdb_lvds_backlight *backlight = block->data;
struct blc_struct *blc;
- block = find_section(BDB_LVDS_BACKLIGHT, length);
-
- if (!block)
- return;
-
- backlight = block->data;
-
- printf("Backlight info block (len %d):\n", block->size);
-
if (sizeof(struct blc_struct) != backlight->blcstruct_size) {
printf("\tBacklight struct sizes don't match (expected %zu, got %u), skipping\n",
sizeof(struct blc_struct), backlight->blcstruct_size);
@@ -345,23 +326,13 @@ static void dump_child_device(struct child_device_config *child)
}
}
-static void dump_general_definitions(int length)
+static void dump_general_definitions(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_general_definitions *defs;
+ struct bdb_general_definitions *defs = block->data;
struct child_device_config *child;
int i;
int child_device_num;
- block = find_section(BDB_GENERAL_DEFINITIONS, length);
-
- if (!block)
- return;
-
- defs = block->data;
-
- printf("General definitions block:\n");
-
printf("\tCRT DDC GMBUS addr: 0x%02x\n", defs->crt_ddc_gmbus_pin);
printf("\tUse ACPI DPMS CRT power states: %s\n",
YESNO(defs->dpms_acpi));
@@ -374,25 +345,14 @@ static void dump_general_definitions(int length)
child_device_num = (block->size - sizeof(*defs)) / sizeof(*child);
for (i = 0; i < child_device_num; i++)
dump_child_device(&defs->devices[i]);
- free(block);
}
-static void dump_child_devices(int length)
+static void dump_child_devices(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_child_devices *child_devs;
+ struct bdb_child_devices *child_devs = block->data;
struct child_device_config *child;
int i;
- block = find_section(BDB_CHILD_DEVICE_TABLE, length);
- if (!block) {
- printf("No child device table found\n");
- return;
- }
-
- child_devs = block->data;
-
- printf("Child devices block:\n");
for (i = 0; i < DEVICE_CHILD_SIZE; i++) {
child = &child_devs->children[i];
/* Skip nonexistent children */
@@ -408,24 +368,11 @@ static void dump_child_devices(int length)
printf("\t\tDVO config: 0x%02x\n", child->dvo_cfg);
printf("\t\tDVO wiring: 0x%02x\n", child->dvo_wiring);
}
-
- free(block);
}
-static void dump_lvds_options(int length)
+static void dump_lvds_options(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_lvds_options *options;
-
- block = find_section(BDB_LVDS_OPTIONS, length);
- if (!block) {
- printf("No LVDS options block\n");
- return;
- }
-
- options = block->data;
-
- printf("LVDS options block:\n");
+ struct bdb_lvds_options *options = block->data;
panel_type = options->panel_type;
printf("\tPanel type: %d\n", panel_type);
@@ -437,54 +384,22 @@ static void dump_lvds_options(int length)
printf("\tPFIT enhanced text mode: %s\n",
YESNO(options->pfit_text_mode_enhanced));
printf("\tPFIT mode: %d\n", options->pfit_mode);
-
- free(block);
}
-static void dump_lvds_ptr_data(int length)
+static void dump_lvds_ptr_data(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_lvds_lfp_data *lvds_data;
- struct bdb_lvds_lfp_data_ptrs *ptrs;
- struct lvds_fp_timing *fp_timing;
- struct bdb_lvds_lfp_data_entry *entry;
- int lfp_data_size;
-
- block = find_section(BDB_LVDS_LFP_DATA_PTRS, length);
- if (!block) {
- printf("No LFP data pointers block\n");
- return;
- }
- ptrs = block->data;
+ struct bdb_lvds_lfp_data_ptrs *ptrs = block->data;
- block = find_section(BDB_LVDS_LFP_DATA, length);
- if (!block) {
- printf("No LVDS data block\n");
- return;
- }
- lvds_data = block->data;
-
- lfp_data_size =
- ptrs->ptr[1].fp_timing_offset - ptrs->ptr[0].fp_timing_offset;
- entry =
- (struct bdb_lvds_lfp_data_entry *)((uint8_t *) lvds_data->data +
- (lfp_data_size * panel_type));
- fp_timing = &entry->fp_timing;
+ printf("\tNumber of entries: %d\n", ptrs->lvds_entries);
- printf("LVDS timing pointer data:\n");
- printf(" Number of entries: %d\n", ptrs->lvds_entries);
-
- printf("\tpanel type %02i: %dx%d\n", panel_type, fp_timing->x_res,
- fp_timing->y_res);
-
- free(block);
+ /* save for use by dump_lvds_data() */
+ lvds_lfp_data_ptrs = ptrs;
}
-static void dump_lvds_data(int length)
+static void dump_lvds_data(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_lvds_lfp_data *lvds_data;
- struct bdb_lvds_lfp_data_ptrs *ptrs;
+ struct bdb_lvds_lfp_data *lvds_data = block->data;
+ struct bdb_lvds_lfp_data_ptrs *ptrs = lvds_lfp_data_ptrs;
int num_entries;
int i;
int hdisplay, hsyncstart, hsyncend, htotal;
@@ -492,29 +407,20 @@ static void dump_lvds_data(int length)
float clock;
int lfp_data_size, dvo_offset;
- block = find_section(BDB_LVDS_LFP_DATA_PTRS, length);
- if (!block) {
+ if (!ptrs) {
printf("No LVDS ptr block\n");
return;
}
- ptrs = block->data;
+
lfp_data_size =
ptrs->ptr[1].fp_timing_offset - ptrs->ptr[0].fp_timing_offset;
dvo_offset =
ptrs->ptr[0].dvo_timing_offset - ptrs->ptr[0].fp_timing_offset;
- free(block);
- block = find_section(BDB_LVDS_LFP_DATA, length);
- if (!block) {
- printf("No LVDS data block\n");
- return;
- }
-
- lvds_data = block->data;
num_entries = block->size / lfp_data_size;
- printf("LVDS panel data block (preferred block marked with '*'):\n");
- printf(" Number of entries: %d\n", num_entries);
+ printf(" Number of entries: %d (preferred block marked with '*')\n",
+ num_entries);
for (i = 0; i < num_entries; i++) {
uint8_t *lfp_data_ptr =
@@ -560,22 +466,12 @@ static void dump_lvds_data(int length)
(hsyncend > htotal || vsyncend > vtotal) ?
"BAD!" : "good");
}
- free(block);
}
-static void dump_driver_feature(int length)
+static void dump_driver_feature(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_driver_feature *feature;
-
- block = find_section(BDB_DRIVER_FEATURES, length);
- if (!block) {
- printf("No Driver feature data block\n");
- return;
- }
- feature = block->data;
+ struct bdb_driver_feature *feature = block->data;
- printf("Driver feature Data Block:\n");
printf("\tBoot Device Algorithm: %s\n", feature->boot_dev_algorithm ?
"driver default" : "os default");
printf("\tBlock display switching when DVD active: %s\n",
@@ -636,94 +532,106 @@ static void dump_driver_feature(int length)
printf("\tLegacy CRT max Y: %d\n", feature->legacy_crt_max_y);
printf("\tLegacy CRT max refresh: %d\n",
feature->legacy_crt_max_refresh);
- free(block);
}
-static void dump_edp(int length)
+static void dump_edp(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_edp *edp;
- int bpp;
+ struct bdb_edp *edp = block->data;
+ int bpp, msa;
+ int i;
- block = find_section(BDB_EDP, length);
- if (!block) {
- printf("No EDP data block\n");
- return;
- }
- edp = block->data;
-
- printf("eDP block: type %d\n", panel_type);
- printf("\tPower Sequence: T3 %d T7 %d T9 %d T10 %d T12 %d\n",
- edp->power_seqs[panel_type].t3,
- edp->power_seqs[panel_type].t7,
- edp->power_seqs[panel_type].t9,
- edp->power_seqs[panel_type].t10,
- edp->power_seqs[panel_type].t12);
-
- bpp = (edp->color_depth >> (panel_type * 2)) & 3;
-
- printf("\tPanel color depth: ");
- switch (bpp) {
- case EDP_18BPP:
- printf("18bpp\n");
- break;
- case EDP_24BPP:
- printf("24bpp\n");
- break;
- case EDP_30BPP:
- printf("30bpp\n");
- break;
- }
- printf("\teDP sDRRs MSA timing delay: %d\n", edp->sdrrs_msa_timing_delay);
- printf("\tLink params:\n");
- printf("\t\trate: ");
- if (edp->link_params[panel_type].rate == EDP_RATE_1_62)
- printf("1.62G\n");
- else if (edp->link_params[panel_type].rate == EDP_RATE_2_7)
- printf("2.7G\n");
- printf("\t\tlanes: ");
- switch (edp->link_params[panel_type].lanes) {
- case EDP_LANE_1:
- printf("x1 mode\n");
- break;
- case EDP_LANE_2:
- printf("x2 mode\n");
- break;
- case EDP_LANE_4:
- printf("x4 mode\n");
- break;
- }
- printf("\t\tpre-emphasis: ");
- switch (edp->link_params[panel_type].preemphasis) {
- case EDP_PREEMPHASIS_NONE:
- printf("none\n");
- break;
- case EDP_PREEMPHASIS_3_5dB:
- printf("3.5dB\n");
- break;
- case EDP_PREEMPHASIS_6dB:
- printf("6dB\n");
- break;
- case EDP_PREEMPHASIS_9_5dB:
- printf("9.5dB\n");
- break;
- }
- printf("\t\tvswing: ");
- switch (edp->link_params[panel_type].vswing) {
- case EDP_VSWING_0_4V:
- printf("0.4V\n");
- break;
- case EDP_VSWING_0_6V:
- printf("0.6V\n");
- break;
- case EDP_VSWING_0_8V:
- printf("0.8V\n");
- break;
- case EDP_VSWING_1_2V:
- printf("1.2V\n");
- break;
+ for (i = 0; i < 16; i++) {
+ printf("\tPanel %d%s\n", i, panel_type == i ? " *" : "");
+
+ printf("\t\tPower Sequence: T3 %d T7 %d T9 %d T10 %d T12 %d\n",
+ edp->power_seqs[i].t3,
+ edp->power_seqs[i].t7,
+ edp->power_seqs[i].t9,
+ edp->power_seqs[i].t10,
+ edp->power_seqs[i].t12);
+
+ bpp = (edp->color_depth >> (i * 2)) & 3;
+
+ printf("\t\tPanel color depth: ");
+ switch (bpp) {
+ case EDP_18BPP:
+ printf("18 bpp\n");
+ break;
+ case EDP_24BPP:
+ printf("24 bpp\n");
+ break;
+ case EDP_30BPP:
+ printf("30 bpp\n");
+ break;
+ default:
+ printf("(unknown value %d)\n", bpp);
+ break;
+ }
+
+ msa = (edp->sdrrs_msa_timing_delay >> (i * 2)) & 3;
+ printf("\t\teDP sDRRS MSA Delay: Lane %d\n", msa + 1);
+
+ printf("\t\tLink params:\n");
+ printf("\t\t\trate: ");
+ if (edp->link_params[i].rate == EDP_RATE_1_62)
+ printf("1.62G\n");
+ else if (edp->link_params[i].rate == EDP_RATE_2_7)
+ printf("2.7G\n");
+ printf("\t\t\tlanes: ");
+ switch (edp->link_params[i].lanes) {
+ case EDP_LANE_1:
+ printf("x1 mode\n");
+ break;
+ case EDP_LANE_2:
+ printf("x2 mode\n");
+ break;
+ case EDP_LANE_4:
+ printf("x4 mode\n");
+ break;
+ default:
+ printf("(unknown value %d)\n",
+ edp->link_params[i].lanes);
+ break;
+ }
+ printf("\t\t\tpre-emphasis: ");
+ switch (edp->link_params[i].preemphasis) {
+ case EDP_PREEMPHASIS_NONE:
+ printf("none\n");
+ break;
+ case EDP_PREEMPHASIS_3_5dB:
+ printf("3.5dB\n");
+ break;
+ case EDP_PREEMPHASIS_6dB:
+ printf("6dB\n");
+ break;
+ case EDP_PREEMPHASIS_9_5dB:
+ printf("9.5dB\n");
+ break;
+ default:
+ printf("(unknown value %d)\n",
+ edp->link_params[i].preemphasis);
+ break;
+ }
+ printf("\t\t\tvswing: ");
+ switch (edp->link_params[i].vswing) {
+ case EDP_VSWING_0_4V:
+ printf("0.4V\n");
+ break;
+ case EDP_VSWING_0_6V:
+ printf("0.6V\n");
+ break;
+ case EDP_VSWING_0_8V:
+ printf("0.8V\n");
+ break;
+ case EDP_VSWING_1_2V:
+ printf("1.2V\n");
+ break;
+ default:
+ printf("(unknown value %d)\n",
+ edp->link_params[i].vswing);
+ break;
+ }
}
- free(block);
}
static void
@@ -755,43 +663,22 @@ print_detail_timing_data(struct lvds_dvo_timing2 *dvo_timing)
printf("\tclock: %d\n", dvo_timing->clock * 10);
}
-static void dump_sdvo_panel_dtds(int length)
+static void dump_sdvo_panel_dtds(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct lvds_dvo_timing2 *dvo_timing;
+ struct lvds_dvo_timing2 *dvo_timing = block->data;
int n, count;
- block = find_section(BDB_SDVO_PANEL_DTDS, length);
- 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(int length)
+static void dump_sdvo_lvds_options(const struct bdb_block *block)
{
- struct bdb_block *block;
- struct bdb_sdvo_lvds_options *options;
+ struct bdb_sdvo_lvds_options *options = block->data;
- block = find_section(BDB_SDVO_LVDS_OPTIONS, length);
- 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);
@@ -807,8 +694,6 @@ static void dump_sdvo_lvds_options(int length)
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
@@ -828,6 +713,124 @@ get_device_id(unsigned char *bios)
return device;
}
+struct dumper {
+ uint8_t id;
+ const char *name;
+ void (*dump)(const struct bdb_block *block);
+};
+
+struct dumper dumpers[] = {
+ {
+ .id = BDB_GENERAL_FEATURES,
+ .name = "General features block",
+ .dump = dump_general_features,
+ },
+ {
+ .id = BDB_GENERAL_DEFINITIONS,
+ .name = "General definitions block",
+ .dump = dump_general_definitions,
+ },
+ {
+ .id = BDB_CHILD_DEVICE_TABLE,
+ .name = "Child devices block",
+ .dump = dump_child_devices,
+ },
+ {
+ .id = BDB_LVDS_OPTIONS,
+ .name = "LVDS options block",
+ .dump = dump_lvds_options,
+ },
+ {
+ .id = BDB_LVDS_LFP_DATA_PTRS,
+ .name = "LVDS timing pointer data",
+ .dump = dump_lvds_ptr_data,
+ },
+ {
+ .id = BDB_LVDS_LFP_DATA,
+ .name = "LVDS panel data block",
+ .dump = dump_lvds_data,
+ },
+ {
+ .id = BDB_LVDS_BACKLIGHT,
+ .name = "Backlight info block",
+ .dump = dump_backlight_info,
+ },
+ {
+ .id = BDB_SDVO_LVDS_OPTIONS,
+ .name = "SDVO LVDS options block",
+ .dump = dump_sdvo_lvds_options,
+ },
+ {
+ .id = BDB_SDVO_PANEL_DTDS,
+ .name = "SDVO panel dtds",
+ .dump = dump_sdvo_panel_dtds,
+ },
+ {
+ .id = BDB_DRIVER_FEATURES,
+ .name = "Driver feature data block",
+ .dump = dump_driver_feature,
+ },
+ {
+ .id = BDB_EDP,
+ .name = "eDP block",
+ .dump = dump_edp,
+ },
+};
+
+static void hex_dump(const struct bdb_block *block)
+{
+ int i;
+ uint8_t *p = block->data;
+
+ for (i = 0; i < block->size; i++) {
+ if (i % 16 == 0)
+ printf("\t%04x: ", i);
+ printf("%02x", p[i]);
+ if (i % 16 == 15) {
+ if (i + 1 < block->size)
+ printf("\n");
+ } else if (i % 8 == 7) {
+ printf(" ");
+ } else {
+ printf(" ");
+ }
+ }
+ printf("\n\n");
+}
+
+static void dump_section(int section_id, int size)
+{
+ struct dumper *dumper = NULL;
+ const struct bdb_block *block;
+ static int done[256];
+ int i;
+
+ if (done[section_id])
+ return;
+ done[section_id] = 1;
+
+ block = find_section(section_id, size);
+ if (!block)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(dumpers); i++) {
+ if (block->id == dumpers[i].id) {
+ dumper = &dumpers[i];
+ break;
+ }
+ }
+
+ if (dumper && dumper->name)
+ printf("BDB block %d - %s:\n", block->id, dumper->name);
+ else
+ printf("BDB block %d:\n", block->id);
+
+ hex_dump(block);
+ if (dumper && dumper->dump)
+ dumper->dump(block);
+ printf("\n");
+}
+
int main(int argc, char **argv)
{
int fd;
@@ -835,6 +838,7 @@ int main(int argc, char **argv)
int vbt_off, bdb_off, i;
const char *filename = "bios";
struct stat finfo;
+ int size;
struct bdb_block *block;
char signature[17];
char *devid_string;
@@ -860,12 +864,13 @@ int main(int argc, char **argv)
strerror(errno));
return 1;
}
+ size = finfo.st_size;
- if (finfo.st_size == 0) {
+ if (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))) {
+ size = 8192;
+ VBIOS = malloc (size);
+ while ((ret = read(fd, VBIOS + len, size - len))) {
if (ret < 0) {
printf("failed to read \"%s\": %s\n", filename,
strerror(errno));
@@ -873,13 +878,13 @@ int main(int argc, char **argv)
}
len += ret;
- if (len == finfo.st_size) {
- finfo.st_size *= 2;
- VBIOS = realloc(VBIOS, finfo.st_size);
+ if (len == size) {
+ size *= 2;
+ VBIOS = realloc(VBIOS, size);
}
}
} else {
- VBIOS = mmap(NULL, finfo.st_size, PROT_READ, MAP_SHARED, fd, 0);
+ VBIOS = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
if (VBIOS == MAP_FAILED) {
printf("failed to map \"%s\": %s\n", filename, strerror(errno));
return 1;
@@ -887,7 +892,7 @@ int main(int argc, char **argv)
}
/* Scour memory looking for the VBT signature */
- for (i = 0; i + 4 < finfo.st_size; i++) {
+ for (i = 0; i + 4 < size; i++) {
if (!memcmp(VBIOS + i, "$VBT", 4)) {
vbt_off = i;
vbt = (struct vbt_header *)(VBIOS + i);
@@ -903,7 +908,7 @@ 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;
- if (bdb_off >= finfo.st_size - sizeof(struct bdb_header)) {
+ if (bdb_off >= size - sizeof(struct bdb_header)) {
printf("Invalid VBT found, BDB points beyond end of data block\n");
return 1;
}
@@ -915,8 +920,9 @@ int main(int argc, char **argv)
printf("BDB vers: %d\n", bdb->version);
printf("Available sections: ");
+
for (i = 0; i < 256; i++) {
- block = find_section(i, finfo.st_size);
+ block = find_section(i, size);
if (!block)
continue;
printf("%d ", i);
@@ -929,19 +935,22 @@ int main(int argc, char **argv)
if (devid == -1)
printf("Warning: could not find PCI device ID!\n");
- dump_general_features(finfo.st_size);
- dump_general_definitions(finfo.st_size);
- dump_child_devices(finfo.st_size);
- dump_lvds_options(finfo.st_size);
- dump_lvds_data(finfo.st_size);
- dump_lvds_ptr_data(finfo.st_size);
- dump_backlight_info(finfo.st_size);
+ dump_section(BDB_GENERAL_FEATURES, size);
+ dump_section(BDB_GENERAL_DEFINITIONS, size);
+ dump_section(BDB_CHILD_DEVICE_TABLE, size);
+ dump_section(BDB_LVDS_OPTIONS, size);
+ dump_section(BDB_LVDS_LFP_DATA_PTRS, size);
+ dump_section(BDB_LVDS_LFP_DATA, size);
+ dump_section(BDB_LVDS_BACKLIGHT, size);
+
+ dump_section(BDB_SDVO_LVDS_OPTIONS, size);
+ dump_section(BDB_SDVO_PANEL_DTDS, size);
- dump_sdvo_lvds_options(finfo.st_size);
- dump_sdvo_panel_dtds(finfo.st_size);
+ dump_section(BDB_DRIVER_FEATURES, size);
+ dump_section(BDB_EDP, size);
- dump_driver_feature(finfo.st_size);
- dump_edp(finfo.st_size);
+ for (i = 0; i < 256; i++)
+ dump_section(i, size);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 17:00:30 +0000