summaryrefslogtreecommitdiff
path: root/src/lib/edid.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/edid.c')
-rw-r--r--src/lib/edid.c341
1 files changed, 223 insertions, 118 deletions
diff --git a/src/lib/edid.c b/src/lib/edid.c
index a506ab1131..2f8277be3f 100644
--- a/src/lib/edid.c
+++ b/src/lib/edid.c
@@ -100,7 +100,8 @@ static struct lb_framebuffer edid_fb;
static char *manufacturer_name(unsigned char *x)
{
extra_info.manuf_name[0] = ((x[0] & 0x7C) >> 2) + '@';
- extra_info.manuf_name[1] = ((x[0] & 0x03) << 3) + ((x[1] & 0xE0) >> 5) + '@';
+ extra_info.manuf_name[1] = ((x[0] & 0x03) << 3) + ((x[1] & 0xE0) >> 5)
+ + '@';
extra_info.manuf_name[2] = (x[1] & 0x1F) + '@';
extra_info.manuf_name[3] = 0;
@@ -156,7 +157,8 @@ detailed_cvt_descriptor(unsigned char *x, int first)
if (!valid) {
printk(BIOS_SPEW, " (broken)\n");
} else {
- printk(BIOS_SPEW, " %dx%d @ ( %s%s%s%s%s) Hz (%s%s preferred)\n",
+ printk(BIOS_SPEW,
+ " %dx%d @ ( %s%s%s%s%s) Hz (%s%s preferred)\n",
width, height,
fifty ? "50 " : "",
sixty ? "60 " : "",
@@ -219,13 +221,15 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
/* Monitor descriptor block, not detailed timing descriptor. */
if (x[2] != 0) {
/* 1.3, 3.10.3 */
- printk(BIOS_SPEW, "Monitor descriptor block has byte 2 nonzero (0x%02x)\n",
+ printk(BIOS_SPEW,
+ "Monitor descriptor block has byte 2 nonzero (0x%02x)\n",
x[2]);
c->has_valid_descriptor_pad = 0;
}
if (x[3] != 0xfd && x[4] != 0x00) {
/* 1.3, 3.10.3 */
- printk(BIOS_SPEW, "Monitor descriptor block has byte 4 nonzero (0x%02x)\n",
+ printk(BIOS_SPEW,
+ "Monitor descriptor block has byte 4 nonzero (0x%02x)\n",
x[4]);
c->has_valid_descriptor_pad = 0;
}
@@ -233,11 +237,13 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
c->seen_non_detailed_descriptor = 1;
if (x[3] <= 0xF) {
/*
- * in principle we can decode these, if we know what they are.
+ * in principle we can decode these, if we know what
+ * they are.
* 0x0f seems to be common in laptop panels.
* 0x0e is used by EPI: http://www.epi-standard.org/
*/
- printk(BIOS_SPEW, "Manufacturer-specified data, tag %d\n", x[3]);
+ printk(BIOS_SPEW,
+ "Manufacturer-specified data, tag %d\n", x[3]);
return 1;
}
switch (x[3]) {
@@ -260,7 +266,8 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
return 0;
}
for (i = 0; i < 4; i++)
- valid_cvt &= detailed_cvt_descriptor(x + 6 + (i * 3), (i == 0));
+ valid_cvt &= detailed_cvt_descriptor(x + 6
+ + (i * 3), (i == 0));
c->has_valid_cvt &= valid_cvt;
return 1;
}
@@ -291,7 +298,8 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
extra_info.range_class = "";
/*
* XXX todo: implement feature flags, vtd blocks
- * XXX check: ranges are well-formed; block termination if no vtd
+ * XXX check: ranges are well-formed; block termination
+ * if no vtd
*/
if (c->claims_one_point_four) {
if (x[4] & 0x02) {
@@ -339,12 +347,14 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
c->has_valid_range_descriptor = 0;
if (x[7] + h_min_offset > x[8] + h_max_offset)
c->has_valid_range_descriptor = 0;
- printk(BIOS_SPEW, "Monitor ranges (%s): %d-%dHz V, %d-%dkHz H",
+ printk(BIOS_SPEW,
+ "Monitor ranges (%s): %d-%dHz V, %d-%dkHz H",
extra_info.range_class,
x[5] + v_min_offset, x[6] + v_max_offset,
x[7] + h_min_offset, x[8] + h_max_offset);
if (x[9])
- printk(BIOS_SPEW, ", max dotclock %dMHz\n", x[9] * 10);
+ printk(BIOS_SPEW,
+ ", max dotclock %dMHz\n", x[9] * 10);
else {
if (c->claims_one_point_four)
c->has_valid_max_dotclock = 0;
@@ -354,12 +364,15 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
if (is_cvt) {
int max_h_pixels = 0;
- printk(BIOS_SPEW, "CVT version %d.%d\n", x[11] & 0xf0 >> 4, x[11] & 0x0f);
+ printk(BIOS_SPEW, "CVT version %d.%d\n",
+ x[11] & 0xf0 >> 4, x[11] & 0x0f);
if (x[12] & 0xfc) {
int raw_offset = (x[12] & 0xfc) >> 2;
- printk(BIOS_SPEW, "Real max dotclock: %dKHz\n",
- (x[9] * 10000) - (raw_offset * 250));
+ printk(BIOS_SPEW,
+ "Real max dotclock: %dKHz\n",
+ (x[9] * 10000)
+ - (raw_offset * 250));
if (raw_offset >= 40)
c->warning_excessive_dotclock_correction = 1;
}
@@ -369,14 +382,17 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
max_h_pixels |= x[13];
max_h_pixels *= 8;
if (max_h_pixels)
- printk(BIOS_SPEW, "Max active pixels per line: %d\n", max_h_pixels);
-
- printk(BIOS_SPEW, "Supported aspect ratios: %s %s %s %s %s\n",
- x[14] & 0x80 ? "4:3" : "",
- x[14] & 0x40 ? "16:9" : "",
- x[14] & 0x20 ? "16:10" : "",
- x[14] & 0x10 ? "5:4" : "",
- x[14] & 0x08 ? "15:9" : "");
+ printk(BIOS_SPEW,
+ "Max active pixels per line: %d\n",
+ max_h_pixels);
+
+ printk(BIOS_SPEW,
+ "Supported aspect ratios: %s %s %s %s %s\n",
+ x[14] & 0x80 ? "4:3" : "",
+ x[14] & 0x40 ? "16:9" : "",
+ x[14] & 0x20 ? "16:10" : "",
+ x[14] & 0x10 ? "5:4" : "",
+ x[14] & 0x08 ? "15:9" : "");
if (x[14] & 0x07)
c->has_valid_range_descriptor = 0;
@@ -404,54 +420,69 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
printk(BIOS_SPEW, "\n");
if (x[15] & 0x04)
- printk(BIOS_SPEW, "Supports CVT standard blanking\n");
+ printk(BIOS_SPEW,
+ "Supports CVT standard blanking\n");
if (x[15] & 0x10)
- printk(BIOS_SPEW, "Supports CVT reduced blanking\n");
+ printk(BIOS_SPEW,
+ "Supports CVT reduced blanking\n");
if (x[15] & 0x07)
c->has_valid_range_descriptor = 0;
if (x[16] & 0xf0) {
- printk(BIOS_SPEW, "Supported display scaling:\n");
+ printk(BIOS_SPEW,
+ "Supported display scaling:\n");
if (x[16] & 0x80)
- printk(BIOS_SPEW, " Horizontal shrink\n");
+ printk(BIOS_SPEW,
+ " Horizontal shrink\n");
if (x[16] & 0x40)
- printk(BIOS_SPEW, " Horizontal stretch\n");
+ printk(BIOS_SPEW,
+ " Horizontal stretch\n");
if (x[16] & 0x20)
- printk(BIOS_SPEW, " Vertical shrink\n");
+ printk(BIOS_SPEW,
+ " Vertical shrink\n");
if (x[16] & 0x10)
- printk(BIOS_SPEW, " Vertical stretch\n");
+ printk(BIOS_SPEW,
+ " Vertical stretch\n");
}
if (x[16] & 0x0f)
c->has_valid_range_descriptor = 0;
if (x[17])
- printk(BIOS_SPEW, "Preferred vertical refresh: %d Hz\n", x[17]);
+ printk(BIOS_SPEW,
+ "Preferred vertical refresh: %d Hz\n",
+ x[17]);
else
c->warning_zero_preferred_refresh = 1;
}
/*
- * Slightly weird to return a global, but I've never seen any
- * EDID block wth two range descriptors, so it's harmless.
+ * Slightly weird to return a global, but I've never
+ * seen any EDID block wth two range descriptors, so
+ * it's harmless.
*/
return 1;
}
case 0xFE:
/*
- * TODO: Two of these in a row, in the third and fourth slots,
- * seems to be specified by SPWG: http://www.spwg.org/
+ * TODO: Two of these in a row, in the third and fourth
+ * slots, seems to be specified by SPWG:
+ * http://www.spwg.org/
*/
printk(BIOS_SPEW, "ASCII string: %s\n",
- extract_string(x + 5, &c->has_valid_string_termination, 13));
+ extract_string(x + 5,
+ &c->has_valid_string_termination, 13));
return 1;
case 0xFF:
printk(BIOS_SPEW, "Serial number: %s\n",
- extract_string(x + 5, &c->has_valid_string_termination, 13));
+ extract_string(x + 5,
+ &c->has_valid_string_termination, 13));
return 1;
default:
- printk(BIOS_SPEW, "Unknown monitor description type %d\n", x[3]);
+ printk(BIOS_SPEW,
+ "Unknown monitor description type %d\n",
+ x[3]);
return 0;
}
}
@@ -539,7 +570,8 @@ detailed_block(struct edid *result_edid, unsigned char *x, int in_extension,
break;
}
- printk(BIOS_SPEW, "Detailed mode (IN HEX): Clock %d KHz, %x mm x %x mm\n"
+ printk(BIOS_SPEW,
+ "Detailed mode (IN HEX): Clock %d KHz, %x mm x %x mm\n"
" %04x %04x %04x %04x hborder %x\n"
" %04x %04x %04x %04x vborder %x\n"
" %chsync %cvsync%s%s %s\n",
@@ -576,7 +608,8 @@ do_checksum(unsigned char *x)
for (i = 0; i < 128; i++)
sum += x[i];
if (sum) {
- printk(BIOS_SPEW, " (should be 0x%hhx)", (unsigned char)(x[0x7f] - sum));
+ printk(BIOS_SPEW, " (should be 0x%hhx)",
+ (unsigned char)(x[0x7f] - sum));
} else {
valid = 1;
printk(BIOS_SPEW, " (valid)");
@@ -626,9 +659,10 @@ cea_audio_block(unsigned char *x)
for (i = 1; i < length; i += 3) {
format = (x[i] & 0x78) >> 3;
- printk(BIOS_SPEW, " %s, max channels %d\n", audio_format(format),
- x[i] & 0x07);
- printk(BIOS_SPEW, " Supported sample rates (kHz):%s%s%s%s%s%s%s\n",
+ printk(BIOS_SPEW, " %s, max channels %d\n",
+ audio_format(format), x[i] & 0x07);
+ printk(BIOS_SPEW,
+ " Supported sample rates (kHz):%s%s%s%s%s%s%s\n",
(x[i+1] & 0x40) ? " 192" : "",
(x[i+1] & 0x20) ? " 176.4" : "",
(x[i+1] & 0x10) ? " 96" : "",
@@ -637,12 +671,14 @@ cea_audio_block(unsigned char *x)
(x[i+1] & 0x02) ? " 44.1" : "",
(x[i+1] & 0x01) ? " 32" : "");
if (format == 1) {
- printk(BIOS_SPEW, " Supported sample sizes (bits):%s%s%s\n",
+ printk(BIOS_SPEW,
+ " Supported sample sizes (bits):%s%s%s\n",
(x[2] & 0x04) ? " 24" : "",
(x[2] & 0x02) ? " 20" : "",
(x[2] & 0x01) ? " 16" : "");
} else if (format <= 8) {
- printk(BIOS_SPEW, " Maximum bit rate: %d kHz\n", x[2] * 8);
+ printk(BIOS_SPEW,
+ " Maximum bit rate: %d kHz\n", x[2] * 8);
}
}
}
@@ -700,8 +736,11 @@ cea_hdmi_block(struct edid *out, unsigned char *x)
}
if (x[8] & 0x40) {
- printk(BIOS_SPEW, " Interlaced video latency: %d\n", x[9 + b]);
- printk(BIOS_SPEW, " Interlaced audio latency: %d\n", x[10 + b]);
+ printk(BIOS_SPEW,
+ " Interlaced video latency: %d\n", x[9 + b]);
+ printk(BIOS_SPEW,
+ " Interlaced audio latency: %d\n",
+ x[10 + b]);
b += 2;
}
@@ -712,11 +751,13 @@ cea_hdmi_block(struct edid *out, unsigned char *x)
if (x[9 + b] & 0x80)
printk(BIOS_SPEW, " 3D present\n");
if ((x[9 + b] & 0x60) == 0x20) {
- printk(BIOS_SPEW, " All advertised VICs are 3D-capable\n");
+ printk(BIOS_SPEW,
+ " All advertised VICs are 3D-capable\n");
formats = 1;
}
if ((x[9 + b] & 0x60) == 0x40) {
- printk(BIOS_SPEW, " 3D-capable-VIC mask present\n");
+ printk(BIOS_SPEW,
+ " 3D-capable-VIC mask present\n");
formats = 1;
mask = 1;
}
@@ -755,14 +796,17 @@ cea_hdmi_block(struct edid *out, unsigned char *x)
}
if (mask) {
int i;
- printk(BIOS_SPEW, " 3D VIC indices:");
+ printk(BIOS_SPEW,
+ " 3D VIC indices:");
/* worst bit ordering ever */
for (i = 0; i < 8; i++)
if (x[10 + b] & (1 << i))
- printk(BIOS_SPEW, " %d", i);
+ printk(BIOS_SPEW,
+ " %d", i);
for (i = 0; i < 8; i++)
if (x[9 + b] & (1 << i))
- printk(BIOS_SPEW, " %d", i + 8);
+ printk(BIOS_SPEW,
+ " %d", i + 8);
printk(BIOS_SPEW, "\n");
b += 2;
}
@@ -796,7 +840,8 @@ cea_block(struct edid *out, unsigned char *x)
case 0x03:
/* yes really, endianness lols */
oui = (x[3] << 16) + (x[2] << 8) + x[1];
- printk(BIOS_SPEW, " Vendor-specific data block, OUI %06x", oui);
+ printk(BIOS_SPEW, " Vendor-specific data block, OUI %06x",
+ oui);
if (oui == 0x000c03)
cea_hdmi_block(out, x);
else
@@ -818,7 +863,8 @@ cea_block(struct edid *out, unsigned char *x)
printk(BIOS_SPEW, "vendor-specific video data block\n");
break;
case 0x02:
- printk(BIOS_SPEW, "VESA video display device information data block\n");
+ printk(BIOS_SPEW,
+ "VESA video display device information data block\n");
break;
case 0x03:
printk(BIOS_SPEW, "VESA video data block\n");
@@ -840,9 +886,11 @@ cea_block(struct edid *out, unsigned char *x)
break;
default:
if (x[1] >= 6 && x[1] <= 15)
- printk(BIOS_SPEW, "Reserved video block (%02x)\n", x[1]);
+ printk(BIOS_SPEW,
+ "Reserved video block (%02x)\n", x[1]);
else if (x[1] >= 19 && x[1] <= 31)
- printk(BIOS_SPEW, "Reserved audio block (%02x)\n", x[1]);
+ printk(BIOS_SPEW,
+ "Reserved audio block (%02x)\n", x[1]);
else
printk(BIOS_SPEW, "Unknown (%02x)\n", x[1]);
break;
@@ -853,7 +901,8 @@ cea_block(struct edid *out, unsigned char *x)
int tag = (*x & 0xe0) >> 5;
int length = *x & 0x1f;
printk(BIOS_SPEW,
- " Unknown tag %d, length %d (raw %02x)\n", tag, length, *x);
+ " Unknown tag %d, length %d (raw %02x)\n",
+ tag, length, *x);
break;
}
}
@@ -876,27 +925,37 @@ parse_cea(struct edid *out, unsigned char *x, struct edid_context *c)
break;
if (version < 3)
- printk(BIOS_SPEW, "%d 8-byte timing descriptors\n", (offset - 4) / 8);
+ printk(BIOS_SPEW,
+ "%d 8-byte timing descriptors\n",
+ (offset - 4) / 8);
else if (version == 3) {
int i;
- printk(BIOS_SPEW, "%d bytes of CEA data\n", offset - 4);
+ printk(BIOS_SPEW,
+ "%d bytes of CEA data\n", offset - 4);
for (i = 4; i < offset; i += (x[i] & 0x1f) + 1)
cea_block(out, x + i);
}
if (version >= 2) {
if (x[3] & 0x80)
- printk(BIOS_SPEW, "Underscans PC formats by default\n");
+ printk(BIOS_SPEW,
+ "Underscans PC formats by default\n");
if (x[3] & 0x40)
- printk(BIOS_SPEW, "Basic audio support\n");
+ printk(BIOS_SPEW,
+ "Basic audio support\n");
if (x[3] & 0x20)
- printk(BIOS_SPEW, "Supports YCbCr 4:4:4\n");
+ printk(BIOS_SPEW,
+ "Supports YCbCr 4:4:4\n");
if (x[3] & 0x10)
- printk(BIOS_SPEW, "Supports YCbCr 4:2:2\n");
- printk(BIOS_SPEW, "%d native detailed modes\n", x[3] & 0x0f);
+ printk(BIOS_SPEW,
+ "Supports YCbCr 4:2:2\n");
+ printk(BIOS_SPEW,
+ "%d native detailed modes\n",
+ x[3] & 0x0f);
}
- for (detailed = x + offset; detailed + 18 < x + 127; detailed += 18)
+ for (detailed = x + offset; detailed + 18 < x + 127;
+ detailed += 18)
if (detailed[0])
detailed_block(out, detailed, 1, c);
} while (0);
@@ -1106,15 +1165,19 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
if (edid[0x11] > 0x0f) {
if (edid[0x10] == 0xff) {
c.has_valid_year = 1;
- printk(BIOS_SPEW, "Made week %hhd of model year %hhd\n", edid[0x10],
- edid[0x11]);
+ printk(BIOS_SPEW,
+ "Made week %hhd of model year %hhd\n",
+ edid[0x10], edid[0x11]);
extra_info.week = edid[0x10];
extra_info.year = edid[0x11];
} else {
- /* we know it's at least 2013, when this code was written */
+ /* we know it's at least 2013, when this code
+ * was written
+ */
if (edid[0x11] + 90 <= 2013) {
c.has_valid_year = 1;
- printk(BIOS_SPEW, "Made week %hhd of %d\n",
+ printk(BIOS_SPEW,
+ "Made week %hhd of %d\n",
edid[0x10], edid[0x11] + 1990);
extra_info.week = edid[0x10];
extra_info.year = edid[0x11] + 1990;
@@ -1129,7 +1192,8 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
if (edid[0x12] == 1) {
if (edid[0x13] > 4) {
- printk(BIOS_SPEW, "Claims > 1.4, assuming 1.4 conformance\n");
+ printk(BIOS_SPEW,
+ "Claims > 1.4, assuming 1.4 conformance\n");
edid[0x13] = 4;
}
switch (edid[0x13]) {
@@ -1157,14 +1221,17 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
else if ((edid[0x14] & 0x70) == 0x70)
c.nonconformant_digital_display = 1;
else
- printk(BIOS_SPEW, "%d bits per primary color channel\n",
+ printk(BIOS_SPEW,
+ "%d bits per primary color channel\n",
((edid[0x14] & 0x70) >> 3) + 4);
- out->panel_bits_per_color = ((edid[0x14] & 0x70) >> 3) + 4;
+ out->panel_bits_per_color = ((edid[0x14] & 0x70) >> 3)
+ + 4;
out->panel_bits_per_pixel = 3*out->panel_bits_per_color;
switch (edid[0x14] & 0x0f) {
case 0x00:
- printk(BIOS_SPEW, "Digital interface is not defined\n");
+ printk(BIOS_SPEW,
+ "Digital interface is not defined\n");
break;
case 0x01:
printk(BIOS_SPEW, "DVI interface\n");
@@ -1194,7 +1261,8 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
conformance_mask = 0x7F;
if (!c.nonconformant_digital_display)
- c.nonconformant_digital_display = edid[0x14] & conformance_mask;
+ c.nonconformant_digital_display = edid[0x14]
+ & conformance_mask;
extra_info.nonconformant = c.nonconformant_digital_display;
} else {
analog = 1;
@@ -1211,22 +1279,26 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
if (c.claims_one_point_four) {
if (edid[0x14] & 0x10)
- printk(BIOS_SPEW, "Blank-to-black setup/pedestal\n");
+ printk(BIOS_SPEW,
+ "Blank-to-black setup/pedestal\n");
else
- printk(BIOS_SPEW, "Blank level equals black level\n");
+ printk(BIOS_SPEW,
+ "Blank level equals black level\n");
} else if (edid[0x14] & 0x10) {
/*
- * XXX this is just the X text. 1.3 says "if set, display expects
- * a blank-to-black setup or pedestal per appropriate Signal
- * Level Standard". Whatever _that_ means.
+ * XXX this is just the X text. 1.3 says "if set,
+ * display expects a blank-to-black setup or pedestal
+ * per appropriate Signal Level Standard". Whatever
+ * _that_ means.
*/
printk(BIOS_SPEW, "Configurable signal levels\n");
}
- printk(BIOS_SPEW, "Sync: %s%s%s%s\n", sync & 0x08 ? "Separate " : "",
- sync & 0x04 ? "Composite " : "",
- sync & 0x02 ? "SyncOnGreen " : "",
- sync & 0x01 ? "Serration " : "");
+ printk(BIOS_SPEW, "Sync: %s%s%s%s\n",
+ sync & 0x08 ? "Separate " : "",
+ sync & 0x04 ? "Composite " : "",
+ sync & 0x02 ? "SyncOnGreen " : "",
+ sync & 0x01 ? "Serration " : "");
}
@@ -1236,12 +1308,14 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
} else if (c.claims_one_point_four && (edid[0x15] || edid[0x16])) {
if (edid[0x15]) { /* edid[0x15] != 0 && edid[0x16] == 0 */
unsigned int ratio = 100000/(edid[0x15] + 99);
- printk(BIOS_SPEW, "Aspect ratio is %u.%03u (landscape)\n",
- ratio / 1000, ratio % 1000);
+ printk(BIOS_SPEW,
+ "Aspect ratio is %u.%03u (landscape)\n",
+ ratio / 1000, ratio % 1000);
} else { /* edid[0x15] == 0 && edid[0x16] != 0 */
unsigned int ratio = 100000/(edid[0x16] + 99);
- printk(BIOS_SPEW, "Aspect ratio is %u.%03u (portrait)\n",
- ratio / 1000, ratio % 1000);
+ printk(BIOS_SPEW,
+ "Aspect ratio is %u.%03u (portrait)\n",
+ ratio / 1000, ratio % 1000);
}
} else {
/* Either or both can be zero for 1.3 and before */
@@ -1250,7 +1324,8 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
if (edid[0x17] == 0xff) {
if (c.claims_one_point_four)
- printk(BIOS_SPEW, "Gamma is defined in an extension block\n");
+ printk(BIOS_SPEW,
+ "Gamma is defined in an extension block\n");
else
/* XXX Technically 1.3 doesn't say this... */
printk(BIOS_SPEW, "Gamma: 1.0\n");
@@ -1294,13 +1369,16 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
}
if (edid[0x18] & 0x04)
- printk(BIOS_SPEW, "Default (sRGB) color space is primary color space\n");
+ printk(BIOS_SPEW,
+ "Default (sRGB) color space is primary color space\n");
if (edid[0x18] & 0x02) {
- printk(BIOS_SPEW, "First detailed timing is preferred timing\n");
+ printk(BIOS_SPEW,
+ "First detailed timing is preferred timing\n");
c.has_preferred_timing = 1;
}
if (edid[0x18] & 0x01)
- printk(BIOS_SPEW, "Supports GTF timings within operating range\n");
+ printk(BIOS_SPEW,
+ "Supports GTF timings within operating range\n");
/* XXX color section */
@@ -1310,13 +1388,18 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
*/
for (i = 0; i < 17; i++) {
if (edid[0x23 + i / 8] & (1 << (7 - i % 8))) {
- printk(BIOS_SPEW, " %dx%d@%dHz\n", established_timings[i].x,
- established_timings[i].y, established_timings[i].refresh);
+ printk(BIOS_SPEW, " %dx%d@%dHz\n",
+ established_timings[i].x,
+ established_timings[i].y,
+ established_timings[i].refresh);
for (j = 0; j < NUM_KNOWN_MODES; j++) {
- if (known_modes[j].ha == established_timings[i].x &&
- known_modes[j].va == established_timings[i].y &&
- known_modes[j].refresh == established_timings[i].refresh)
+ if (known_modes[j].ha ==
+ established_timings[i].x
+ && known_modes[j].va ==
+ established_timings[i].y
+ && known_modes[j].refresh ==
+ established_timings[i].refresh)
out->mode_is_supported[j] = 1;
}
}
@@ -1332,7 +1415,8 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
continue;
if (b1 == 0) {
- printk(BIOS_SPEW, "non-conformant standard timing (0 horiz)\n");
+ printk(BIOS_SPEW,
+ "non-conformant standard timing (0 horiz)\n");
continue;
}
x = (b1 + 31) * 8;
@@ -1404,14 +1488,18 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
!c.has_preferred_timing)
c.conformant = 0;
if (!c.conformant)
- printk(BIOS_ERR, "EDID block does NOT conform to EDID 1.4!\n");
+ printk(BIOS_ERR,
+ "EDID block does NOT conform to EDID 1.4!\n");
if (c.nonconformant_digital_display)
- printk(BIOS_ERR, "\tDigital display field contains garbage: %x\n",
+ printk(BIOS_ERR,
+ "\tDigital display field contains garbage: %x\n",
c.nonconformant_digital_display);
if (!c.has_valid_string_termination)
- printk(BIOS_ERR, "\tDetailed block string not properly terminated\n");
+ printk(BIOS_ERR,
+ "\tDetailed block string not properly terminated\n");
if (!c.has_valid_descriptor_pad)
- printk(BIOS_ERR, "\tInvalid descriptor block padding\n");
+ printk(BIOS_ERR,
+ "\tInvalid descriptor block padding\n");
if (!c.has_preferred_timing)
printk(BIOS_ERR, "\tMissing preferred timing\n");
} else if (c.claims_one_point_three) {
@@ -1429,13 +1517,15 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
* messages.
*/
if (!c.conformant)
- printk(BIOS_ERR, "EDID block does NOT conform to EDID 1.3!\n");
+ printk(BIOS_ERR,
+ "EDID block does NOT conform to EDID 1.3!\n");
else if (!c.has_name_descriptor || !c.has_range_descriptor)
printk(BIOS_WARNING, "WARNING: EDID block does NOT "
"fully conform to EDID 1.3.\n");
if (c.nonconformant_digital_display)
- printk(BIOS_ERR, "\tDigital display field contains garbage: %x\n",
+ printk(BIOS_ERR,
+ "\tDigital display field contains garbage: %x\n",
c.nonconformant_digital_display);
if (!c.has_name_descriptor)
printk(BIOS_ERR, "\tMissing name descriptor\n");
@@ -1443,28 +1533,36 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
printk(BIOS_ERR, "\tMissing preferred timing\n");
if (!c.has_range_descriptor)
printk(BIOS_ERR, "\tMissing monitor ranges\n");
- if (!c.has_valid_descriptor_pad) /* Might be more than just 1.3 */
- printk(BIOS_ERR, "\tInvalid descriptor block padding\n");
+ /* Might be more than just 1.3 */
+ if (!c.has_valid_descriptor_pad)
+ printk(BIOS_ERR,
+ "\tInvalid descriptor block padding\n");
if (!c.has_valid_string_termination) /* Likewise */
- printk(BIOS_ERR, "\tDetailed block string not properly terminated\n");
+ printk(BIOS_ERR,
+ "\tDetailed block string not properly terminated\n");
} else if (c.claims_one_point_two) {
if (c.nonconformant_digital_display ||
!c.has_valid_string_termination)
c.conformant = 0;
if (!c.conformant)
- printk(BIOS_ERR, "EDID block does NOT conform to EDID 1.2!\n");
+ printk(BIOS_ERR,
+ "EDID block does NOT conform to EDID 1.2!\n");
if (c.nonconformant_digital_display)
- printk(BIOS_ERR, "\tDigital display field contains garbage: %x\n",
+ printk(BIOS_ERR,
+ "\tDigital display field contains garbage: %x\n",
c.nonconformant_digital_display);
if (!c.has_valid_string_termination)
- printk(BIOS_ERR, "\tDetailed block string not properly terminated\n");
+ printk(BIOS_ERR,
+ "\tDetailed block string not properly terminated\n");
} else if (c.claims_one_point_oh) {
if (c.seen_non_detailed_descriptor)
c.conformant = 0;
if (!c.conformant)
- printk(BIOS_ERR, "EDID block does NOT conform to EDID 1.0!\n");
+ printk(BIOS_ERR,
+ "EDID block does NOT conform to EDID 1.0!\n");
if (c.seen_non_detailed_descriptor)
- printk(BIOS_ERR, "\tHas descriptor blocks other than detailed timings\n");
+ printk(BIOS_ERR,
+ "\tHas descriptor blocks other than detailed timings\n");
}
if (c.nonconformant_extension ||
@@ -1481,7 +1579,8 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
c.conformant = 0;
printk(BIOS_ERR, "EDID block does not conform at all!\n");
if (c.nonconformant_extension)
- printk(BIOS_ERR, "\tHas %d nonconformant extension block(s)\n",
+ printk(BIOS_ERR,
+ "\tHas %d nonconformant extension block(s)\n",
c.nonconformant_extension);
if (!c.has_valid_checksum)
printk(BIOS_ERR, "\tBlock has broken checksum\n");
@@ -1492,19 +1591,25 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
if (!c.has_valid_week)
printk(BIOS_ERR, "\tBad week of manufacture\n");
if (!c.has_valid_detailed_blocks)
- printk(BIOS_ERR, "\tDetailed blocks filled with garbage\n");
+ printk(BIOS_ERR,
+ "\tDetailed blocks filled with garbage\n");
if (!c.has_valid_dummy_block)
printk(BIOS_ERR, "\tDummy block filled with garbage\n");
if (!c.has_valid_extension_count)
- printk(BIOS_ERR, "\tImpossible extension block count\n");
+ printk(BIOS_ERR,
+ "\tImpossible extension block count\n");
if (!c.manufacturer_name_well_formed)
- printk(BIOS_ERR, "\tManufacturer name field contains garbage\n");
+ printk(BIOS_ERR,
+ "\tManufacturer name field contains garbage\n");
if (!c.has_valid_descriptor_ordering)
- printk(BIOS_ERR, "\tInvalid detailed timing descriptor ordering\n");
+ printk(BIOS_ERR,
+ "\tInvalid detailed timing descriptor ordering\n");
if (!c.has_valid_range_descriptor)
- printk(BIOS_ERR, "\tRange descriptor contains garbage\n");
+ printk(BIOS_ERR,
+ "\tRange descriptor contains garbage\n");
if (!c.has_valid_max_dotclock)
- printk(BIOS_ERR, "\tEDID 1.4 block does not set max dotclock\n");
+ printk(BIOS_ERR,
+ "\tEDID 1.4 block does not set max dotclock\n");
}
if (c.warning_excessive_dotclock_correction)
@@ -1596,8 +1701,8 @@ void set_vbe_mode_info_valid(const struct edid *edid, uintptr_t fb_addr)
edid_fb.x_resolution = edid->x_resolution;
edid_fb.y_resolution = edid->y_resolution;
edid_fb.bytes_per_line = edid->bytes_per_line;
- /* In the case of (e.g.) 24 framebuffer bits per pixel, the convention nowadays
- * seems to be to round it up to the nearest reasonable
+ /* In the case of (e.g.) 24 framebuffer bits per pixel, the convention
+ * nowadays seems to be to round it up to the nearest reasonable
* boundary, because otherwise the byte-packing is hideous.
* So, for example, in RGB with no alpha, the bytes are still
* packed into 32-bit words, the so-called 32bpp-no-alpha mode.
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 21:28:39 +0000