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/*
* Copyright © 2006 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "../i830_bios.h"
#include <X11/Xfuncproto.h>
#include <X11/Xmd.h>
#define _PARSE_EDID_
#include "edid.h"
/* 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;
#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 YESNO(val) ((val) ? "yes" : "no")
struct bdb_block {
uint8_t id;
uint16_t size;
void *data;
};
struct bdb_header *bdb;
static int tv_present;
static int lvds_present;
static int panel_type;
static struct bdb_block *find_section(int section_id)
{
struct bdb_block *block;
unsigned char *base = (unsigned char *)bdb;
int index = 0;
uint16_t total, current_size;
unsigned char current_id;
/* skip to first section */
index += bdb->header_size;
total = bdb->bdb_size;
block = malloc(sizeof(*block));
if (!block) {
fprintf(stderr, "out of memory\n");
exit(-1);
}
/* walk the sections looking for section_id */
while (index < total) {
current_id = *(base + index);
index++;
current_size = *((uint16_t *)(base + index));
index += 2;
if (current_id == section_id) {
block->id = current_id;
block->size = current_size;
block->data = base + index;
return block;
}
index += current_size;
}
free(block);
return NULL;
}
static void dump_general_features(void)
{
struct bdb_general_features *features;
struct bdb_block *block;
block = find_section(BDB_GENERAL_FEATURES);
if (!block)
return;
features = block->data;
printf("General features block:\n");
printf("\tPanel fitting: ");
switch (features->panel_fitting) {
case 0:
printf("disabled\n");
break;
case 1:
printf("text only\n");
break;
case 2:
printf("graphics only\n");
break;
case 3:
printf("text & graphics\n");
break;
}
printf("\tFlexaim: %s\n", YESNO(features->flexaim));
printf("\tMessage: %s\n", YESNO(features->msg_enable));
printf("\tClear screen: %d\n", features->clear_screen);
printf("\tDVO color flip required: %s\n", YESNO(features->color_flip));
printf("\tExternal VBT: %s\n", YESNO(features->download_ext_vbt));
printf("\tEnable SSC: %s\n", YESNO(features->enable_ssc));
if (features->enable_ssc)
printf("\tSSC frequency: %s\n", features->ssc_freq ?
"100 MHz (66 MHz on 855)" : "96 MHz (48 MHz on 855)");
printf("\tLFP on override: %s\n", YESNO(features->enable_lfp_on_override));
printf("\tDisable SSC on clone: %s\n", YESNO(features->disable_ssc_ddt));
printf("\tDisable smooth vision: %s\n",
YESNO(features->disable_smooth_vision));
printf("\tSingle DVI for CRT/DVI: %s\n", YESNO(features->single_dvi));
printf("\tLegacy monitor detect: %s\n",
YESNO(features->legacy_monitor_detect));
printf("\tIntegrated CRT: %s\n", YESNO(features->int_crt_support));
printf("\tIntegrated TV: %s\n", YESNO(features->int_tv_support));
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_general_definitions(void)
{
struct bdb_block *block;
struct bdb_general_definitions *defs;
struct child_device_config *child;
int i;
char child_id[11];
int child_device_num;
block = find_section(BDB_GENERAL_DEFINITIONS);
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));
printf("\tSkip CRT detect at boot: %s\n",
YESNO(defs->skip_boot_crt_detect));
printf("\tUse DPMS on AIM devices: %s\n", YESNO(defs->dpms_aim));
printf("\tBoot display type: 0x%02x%02x\n", defs->boot_display[1],
defs->boot_display[0]);
printf("\tTV data block present: %s\n", YESNO(tv_present));
child_device_num = (block->size - sizeof(*defs)) / sizeof(*child);
for (i = 0; i < child_device_num; i++) {
child = &defs->devices[i];
if (!child->device_type) {
printf("\tChild device %d not present\n", i);
continue;
}
strncpy(child_id, (char *)child->device_id, 10);
child_id[10] = 0;
printf("\tChild %d device info:\n", i);
printf("\t\tSignature: %s\n", child_id);
printf("\t\tAIM offset: %d\n", child->addin_offset);
printf("\t\tDVO port: 0x%02x\n", child->dvo_port);
}
free(block);
}
#if 0
static void dump_child_devices(void)
{
struct bdb_block *block;
struct bdb_child_devices *child_devs;
struct child_device_config *child;
int i;
block = find_section(BDB_CHILD_DEVICE_TABLE);
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 */
if (!child->device_type)
continue;
printf("\tChild device %d\n", i);
printf("\t\tType: 0x%04x\n", child->device_type);
printf("\t\tDVO port: 0x%02x\n", child->dvo_port);
printf("\t\tI2C pin: 0x%02x\n", child->i2c_pin);
printf("\t\tSlave addr: 0x%02x\n", child->slave_addr);
printf("\t\tDDC pin: 0x%02x\n", child->ddc_pin);
printf("\t\tDVO config: 0x%02x\n", child->dvo_cfg);
printf("\t\tDVO wiring: 0x%02x\n", child->dvo_wiring);
}
free(block);
}
#endif
static void dump_lvds_options(void)
{
struct bdb_block *block;
struct bdb_lvds_options *options;
block = find_section(BDB_LVDS_OPTIONS);
if (!block) {
printf("No LVDS options block\n");
return;
}
options = block->data;
printf("LVDS options block:\n");
panel_type = options->panel_type;
printf("\tPanel type: %d\n", panel_type);
printf("\tLVDS EDID available: %s\n", YESNO(options->lvds_edid));
printf("\tPixel dither: %s\n", YESNO(options->pixel_dither));
printf("\tPFIT auto ratio: %s\n", YESNO(options->pfit_ratio_auto));
printf("\tPFIT enhanced graphics mode: %s\n",
YESNO(options->pfit_gfx_mode_enhanced));
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(void)
{
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);
if (!block) {
printf("No LFP data pointers block\n");
return;
}
ptrs = block->data;
block = find_section(BDB_LVDS_LFP_DATA);
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("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);
}
static void dump_lvds_data(void)
{
struct bdb_block *block;
struct bdb_lvds_lfp_data *lvds_data;
int num_entries;
int i;
int hdisplay, hsyncstart, hsyncend, htotal;
int vdisplay, vsyncstart, vsyncend, vtotal;
float clock;
block = find_section(BDB_LVDS_LFP_DATA);
if (!block) {
printf("No LVDS data block\n");
return;
}
lvds_data = block->data;
num_entries = block->size / sizeof(struct bdb_lvds_lfp_data_entry);
printf("LVDS panel data block (preferred block marked with '*'):\n");
printf(" Number of entries: %d\n", num_entries);
for (i = 0; i < num_entries; i++) {
struct bdb_lvds_lfp_data_entry *lfp_data = &lvds_data->data[i];
uint8_t *timing_data = (uint8_t *)&lfp_data->dvo_timing;
char marker;
if (i == panel_type)
marker = '*';
else
marker = ' ';
hdisplay = _H_ACTIVE(timing_data);
hsyncstart = hdisplay + _H_SYNC_OFF(timing_data);
hsyncend = hsyncstart + _H_SYNC_WIDTH(timing_data);
htotal = hdisplay + _H_BLANK(timing_data);
vdisplay = _V_ACTIVE(timing_data);
vsyncstart = vdisplay + _V_SYNC_OFF(timing_data);
vsyncend = vsyncstart + _V_SYNC_WIDTH(timing_data);
vtotal = vdisplay + _V_BLANK(timing_data);
clock = _PIXEL_CLOCK(timing_data) / 1000;
printf("%c\tpanel type %02i: %dx%d clock %d\n", marker,
i, lfp_data->fp_timing.x_res, lfp_data->fp_timing.y_res,
_PIXEL_CLOCK(timing_data));
printf("\t\tinfo:\n");
printf("\t\t LVDS: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.lvds_reg_val);
printf("\t\t PP_ON_DELAYS: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pp_on_reg_val);
printf("\t\t PP_OFF_DELAYS: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pp_off_reg_val);
printf("\t\t PP_DIVISOR: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pp_cycle_reg_val);
printf("\t\t PFIT: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pfit_reg_val);
printf("\t\ttimings: %d %d %d %d %d %d %d %d %.2f (%s)\n",
hdisplay, hsyncstart, hsyncend, htotal,
vdisplay, vsyncstart, vsyncend, vtotal, clock,
(hsyncend > htotal || vsyncend > vtotal) ?
"BAD!" : "good");
}
free(block);
}
static void dump_driver_feature(void)
{
struct bdb_block *block;
struct bdb_driver_feature *feature;
block = find_section(BDB_DRIVER_FEATURES);
if (!block) {
printf("No Driver feature data block\n");
return;
}
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",
YESNO(feature->block_display_switch));
printf("\tAllow display switching when in Full Screen DOS: %s\n",
YESNO(feature->allow_display_switch));
printf("\tHot Plug DVO: %s\n", YESNO(feature->hotplug_dvo));
printf("\tDual View Zoom: %s\n", YESNO(feature->dual_view_zoom));
printf("\tDriver INT 15h hook: %s\n", YESNO(feature->int15h_hook));
printf("\tEnable Sprite in Clone Mode: %s\n", YESNO(feature->sprite_in_clone));
printf("\tUse 00000110h ID for Primary LFP: %s\n", YESNO(feature->primary_lfp_id));
printf("\tBoot Mode X: %u\n", feature->boot_mode_x);
printf("\tBoot Mode Y: %u\n", feature->boot_mode_y);
printf("\tBoot Mode Bpp: %u\n", feature->boot_mode_bpp);
printf("\tBoot Mode Refresh: %u\n", feature->boot_mode_refresh);
printf("\tEnable LFP as primary: %s\n", YESNO(feature->enable_lfp_primary));
printf("\tSelective Mode Pruning: %s\n", YESNO(feature->selective_mode_pruning));
printf("\tDual-Frequency Graphics Technology: %s\n", YESNO(feature->dual_frequency));
printf("\tDefault Render Clock Frequency: %s\n", feature->render_clock_freq ? "low" : "high");
printf("\tNT 4.0 Dual Display Clone Support: %s\n", YESNO(feature->nt_clone_support));
printf("\tDefault Power Scheme user interface: %s\n", feature->power_scheme_ui ? "3rd party":"CUI");
printf("\tSprite Display Assignment when Overlay is Active in Clone Mode: %s\n",
feature->sprite_display_assign ? "primary" : "secondary");
printf("\tDisplay Maintain Aspect Scaling via CUI: %s\n", YESNO(feature->cui_aspect_scaling));
printf("\tPreserve Aspect Ratio: %s\n", YESNO(feature->preserve_aspect_ratio));
printf("\tEnable SDVO device power down: %s\n", YESNO(feature->sdvo_device_power_down));
printf("\tCRT hotplug: %s\n", YESNO(feature->crt_hotplug));
printf("\tLVDS config: ");
switch (feature->lvds_config) {
case BDB_DRIVER_NO_LVDS:
printf("No LVDS\n");
break;
case BDB_DRIVER_INT_LVDS:
printf("Integrated LVDS\n");
break;
case BDB_DRIVER_SDVO_LVDS:
printf("SDVO LVDS\n");
break;
case BDB_DRIVER_EDP:
printf("Embedded DisplayPort\n");
break;
}
printf("\tDefine Display statically: %s\n", YESNO(feature->static_display));
printf("\tLegacy CRT max X: %d\n", feature->legacy_crt_max_x);
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);
}
int main(int argc, char **argv)
{
int fd;
struct vbt_header *vbt = NULL;
int vbt_off, bdb_off, i;
char *filename = "bios";
struct stat finfo;
struct bdb_block *block;
char signature[17];
if (argc != 2) {
printf("usage: %s <rom file>\n", argv[0]);
return 1;
}
filename = argv[1];
fd = open(filename, O_RDONLY);
if (fd == -1) {
printf("Couldn't open \"%s\": %s\n", filename, strerror(errno));
return 1;
}
if (stat(filename, &finfo)) {
printf("failed to stat \"%s\": %s\n", filename, strerror(errno));
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;
}
/* Scour memory looking for the VBT signature */
for (i = 0; i + 4 < finfo.st_size; i++) {
if (!memcmp(pI830->VBIOS + i, "$VBT", 4)) {
vbt_off = i;
vbt = (struct vbt_header *)(pI830->VBIOS + i);
break;
}
}
if (!vbt) {
printf("VBT signature missing\n");
return 1;
}
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);
strncpy(signature, (char *)bdb->signature, 16);
signature[16] = 0;
printf("BDB sig: %s\n", signature);
printf("BDB vers: %d.%d\n", bdb->version / 100, bdb->version % 100);
printf("Available sections: ");
for (i = 0; i < 256; i++) {
block = find_section(i);
if (!block)
continue;
printf("%d ", i);
free(block);
}
printf("\n");
dump_general_features();
dump_general_definitions();
// dump_child_devices();
dump_lvds_options();
dump_lvds_data();
dump_lvds_ptr_data();
dump_driver_feature();
return 0;
}
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