mirror of
https://github.com/tiagovignatti/intel-gpu-tools.git
synced 2025-11-04 12:07:12 +00:00
bios: Parse SDVO panel DTDs
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
parent
afaf5ef27c
commit
281285ec70
@ -336,6 +336,33 @@ struct lvds_dvo_timing {
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uint8_t v_border;
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uint8_t flags;
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} __attribute__ ((packed));
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struct lvds_dvo_timing2 {
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uint16_t clock; /**< In 10khz */
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uint8_t hactive_lo;
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uint8_t hblank_lo;
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uint8_t hblank_hi:4;
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uint8_t hactive_hi:4;
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uint8_t vactive_lo;
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uint8_t vblank_lo;
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uint8_t vblank_hi:4;
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uint8_t vactive_hi:4;
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uint8_t hsync_off_lo;
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uint8_t hsync_pulse_width;
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uint8_t vsync_pulse_width:4;
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uint8_t vsync_off:4;
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uint8_t rsvd0:6;
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uint8_t hsync_off_hi:2;
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uint8_t h_image;
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uint8_t v_image;
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uint8_t max_hv;
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uint8_t h_border;
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uint8_t v_border;
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uint8_t rsvd1:3;
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uint8_t digital:2;
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uint8_t vsync_positive:1;
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uint8_t hsync_positive:1;
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uint8_t rsvd2:1;
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} __attribute__((packed));
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struct lvds_pnp_id {
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uint16_t mfg_name;
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@ -51,20 +51,15 @@ static uint32_t devid;
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#define _V_BLANK(x) (x[6] + ((x[7] & 0x0F) << 8))
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#define _PIXEL_CLOCK(x) (x[0] + (x[1] << 8)) * 10000
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/* Make a fake pI830 so we can easily pull i830_bios.c code in here. */
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struct _fake_i830 {
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uint8_t *VBIOS;
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};
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struct _fake_i830 I830;
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struct _fake_i830 *pI830 = &I830;
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uint8_t *VBIOS;
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#define INTEL_BIOS_8(_addr) (pI830->VBIOS[_addr])
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#define INTEL_BIOS_16(_addr) (pI830->VBIOS[_addr] | \
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(pI830->VBIOS[_addr + 1] << 8))
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#define INTEL_BIOS_32(_addr) (pI830->VBIOS[_addr] | \
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(pI830->VBIOS[_addr + 1] << 8) | \
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(pI830->VBIOS[_addr + 2] << 16) | \
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(pI830->VBIOS[_addr + 3] << 24))
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#define INTEL_BIOS_8(_addr) (VBIOS[_addr])
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#define INTEL_BIOS_16(_addr) (VBIOS[_addr] | \
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(VBIOS[_addr + 1] << 8))
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#define INTEL_BIOS_32(_addr) (VBIOS[_addr] | \
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(VBIOS[_addr + 1] << 8) | \
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(VBIOS[_addr + 2] << 16) | \
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(VBIOS[_addr + 3] << 24))
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#define YESNO(val) ((val) ? "yes" : "no")
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@ -727,6 +722,91 @@ static void dump_edp(void)
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free(block);
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}
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static void
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print_detail_timing_data(struct lvds_dvo_timing2 *dvo_timing)
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{
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int display, sync_start, sync_end, total;
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display = (dvo_timing->hactive_hi << 8) | dvo_timing->hactive_lo;
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sync_start = display +
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((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo);
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sync_end = sync_start + dvo_timing->hsync_pulse_width;
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total = display +
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((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo);
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printf("\thdisplay: %d\n", display);
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printf("\thsync [%d, %d] %s\n", sync_start, sync_end,
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dvo_timing->hsync_positive ? "+sync" : "-sync");
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printf("\thtotal: %d\n", total);
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display = (dvo_timing->vactive_hi << 8) | dvo_timing->vactive_lo;
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sync_start = display + dvo_timing->vsync_off;
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sync_end = sync_start + dvo_timing->vsync_pulse_width;
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total = display +
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((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo);
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printf("\tvdisplay: %d\n", display);
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printf("\tvsync [%d, %d] %s\n", sync_start, sync_end,
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dvo_timing->vsync_positive ? "+sync" : "-sync");
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printf("\tvtotal: %d\n", total);
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printf("\tclock: %d\n", dvo_timing->clock * 10);
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}
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static void dump_sdvo_panel_dtds(void)
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{
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struct bdb_block *block;
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struct lvds_dvo_timing2 *dvo_timing;
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int n, count;
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block = find_section(BDB_SDVO_PANEL_DTDS);
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if (!block) {
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printf("No SDVO panel dtds block\n");
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return;
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}
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printf("SDVO panel dtds:\n");
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count = block->size / sizeof(struct lvds_dvo_timing2);
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dvo_timing = block->data;
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for (n = 0; n < count; n++) {
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printf("%d:\n", n);
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print_detail_timing_data(dvo_timing++);
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}
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free(block);
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}
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static void dump_sdvo_lvds_options(void)
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{
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struct bdb_block *block;
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struct bdb_sdvo_lvds_options *options;
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block = find_section(BDB_SDVO_LVDS_OPTIONS);
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if (!block) {
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printf("No SDVO LVDS options block\n");
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return;
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}
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options = block->data;
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printf("SDVO LVDS options block:\n");
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printf("\tbacklight: %d\n", options->panel_backlight);
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printf("\th40 type: %d\n", options->h40_set_panel_type);
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printf("\ttype: %d\n", options->panel_type);
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printf("\tssc_clk_freq: %d\n", options->ssc_clk_freq);
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printf("\tals_low_trip: %d\n", options->als_low_trip);
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printf("\tals_high_trip: %d\n", options->als_high_trip);
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/*
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u8 sclalarcoeff_tab_row_num;
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u8 sclalarcoeff_tab_row_size;
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u8 coefficient[8];
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*/
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printf("\tmisc[0]: %x\n", options->panel_misc_bits_1);
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printf("\tmisc[1]: %x\n", options->panel_misc_bits_2);
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printf("\tmisc[2]: %x\n", options->panel_misc_bits_3);
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printf("\tmisc[3]: %x\n", options->panel_misc_bits_4);
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free(block);
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}
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static int
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get_device_id(unsigned char *bios)
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{
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@ -773,17 +853,36 @@ int main(int argc, char **argv)
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return 1;
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}
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pI830->VBIOS = mmap(NULL, finfo.st_size, PROT_READ, MAP_SHARED, fd, 0);
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if (pI830->VBIOS == MAP_FAILED) {
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printf("failed to map \"%s\": %s\n", filename, strerror(errno));
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return 1;
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if (finfo.st_size == 0) {
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int len = 0, ret;
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finfo.st_size = 8192;
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VBIOS = malloc (finfo.st_size);
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while ((ret = read(fd, VBIOS + len, finfo.st_size - len))) {
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if (ret < 0) {
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printf("failed to read \"%s\": %s\n", filename,
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strerror(errno));
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return 1;
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}
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len += ret;
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if (len == finfo.st_size) {
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finfo.st_size *= 2;
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VBIOS = realloc(VBIOS, finfo.st_size);
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}
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}
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} else {
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VBIOS = mmap(NULL, finfo.st_size, PROT_READ, MAP_SHARED, fd, 0);
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if (VBIOS == MAP_FAILED) {
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printf("failed to map \"%s\": %s\n", filename, strerror(errno));
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return 1;
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}
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}
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/* Scour memory looking for the VBT signature */
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for (i = 0; i + 4 < finfo.st_size; i++) {
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if (!memcmp(pI830->VBIOS + i, "$VBT", 4)) {
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if (!memcmp(VBIOS + i, "$VBT", 4)) {
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vbt_off = i;
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vbt = (struct vbt_header *)(pI830->VBIOS + i);
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vbt = (struct vbt_header *)(VBIOS + i);
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break;
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}
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}
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@ -796,7 +895,7 @@ int main(int argc, char **argv)
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printf("VBT vers: %d.%d\n", vbt->version / 100, vbt->version % 100);
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bdb_off = vbt_off + vbt->bdb_offset;
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bdb = (struct bdb_header *)(pI830->VBIOS + bdb_off);
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bdb = (struct bdb_header *)(VBIOS + bdb_off);
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strncpy(signature, (char *)bdb->signature, 16);
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signature[16] = 0;
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printf("BDB sig: %s\n", signature);
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@ -812,7 +911,7 @@ int main(int argc, char **argv)
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}
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printf("\n");
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devid = get_device_id(pI830->VBIOS);
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devid = get_device_id(VBIOS);
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if (devid == -1)
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printf("Warning: could not find PCI device ID!\n");
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@ -824,6 +923,9 @@ int main(int argc, char **argv)
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dump_lvds_ptr_data();
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dump_backlight_info();
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dump_sdvo_lvds_options();
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dump_sdvo_panel_dtds();
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dump_driver_feature();
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dump_edp();
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