Patrick Georgi (pgeorgi@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11387
-gerrit
commit 742f55b5717c6b2d5b07567f671281d3fcdea854 Author: David Hendricks dhendrix@chromium.org Date: Sun Aug 2 18:07:48 2015 -0700
edid: Clean-up the edid struct
There are serveral members of the edid struct which are never used outside of the EDID parsing code itself. This patch moves them to a struct in edid.c. They might be useful some day but until then we can just pretty print them and not pollute the more general API.
BUG=none BRANCH=firmware-veyron TEST=compiled for veyron_mickey, peppy, link, nyan_big, rush, smaug Signed-off-by: David Hendricks dhendrix@chromium.org
Change-Id: I660f28c850163e89fe1f59d6c5cfd6e63a56dda0 Signed-off-by: Patrick Georgi patrick@georgi-clan.de Original-Commit-Id: ee8ea314a0d8f5993508f560fc24ab17604049df Original-Change-Id: I7fb8674619c0b780cc64f3ab786286225a3fe0e2 Original-Reviewed-on: https://chromium-review.googlesource.com/290333 Original-Reviewed-by: Yakir Yang ykk@rock-chips.com Original-Reviewed-by: Julius Werner jwerner@chromium.org Original-Commit-Queue: David Hendricks dhendrix@chromium.org Original-Tested-by: David Hendricks dhendrix@chromium.org --- src/include/edid.h | 24 ----------- src/lib/edid.c | 123 +++++++++++++++++++++++++++++++---------------------- 2 files changed, 71 insertions(+), 76 deletions(-)
diff --git a/src/include/edid.h b/src/include/edid.h index f775177..1422c1e 100644 --- a/src/include/edid.h +++ b/src/include/edid.h @@ -27,14 +27,6 @@ */
struct edid { - char manuf_name[4]; - unsigned int model; - unsigned int serial; - unsigned int year; - unsigned int week; - unsigned int version[2]; - unsigned int nonconformant; - unsigned int type; /* These next three things used to all be called bpp. * Merriment ensued. The identifier * 'bpp' is herewith banished from our @@ -56,17 +48,9 @@ struct edid { * all over the place. */ unsigned int panel_bits_per_pixel; - unsigned int xres; - unsigned int yres; - unsigned int voltage; - unsigned int sync; - unsigned int xsize_cm; - unsigned int ysize_cm; /* used to compute timing for graphics chips. */ unsigned char phsync; unsigned char pvsync; - unsigned int x_mm; - unsigned int y_mm; unsigned int pixel_clock; unsigned int link_clock; unsigned int ha; @@ -87,14 +71,6 @@ struct edid { u32 x_resolution; u32 y_resolution; u32 bytes_per_line; - /* it is unlikely we need these things. */ - /* if one of these is non-zero, use that one. */ - /* they're aspect * 10 to provide some additional resolution */ - unsigned int aspect_landscape; - unsigned int aspect_portrait; - const char *range_class; - const char *syncmethod; - const char *stereo; };
/* Defined in src/lib/edid.c */ diff --git a/src/lib/edid.c b/src/lib/edid.c index db0f412..e08535d 100644 --- a/src/lib/edid.c +++ b/src/lib/edid.c @@ -68,20 +68,43 @@ struct edid_context { int conformant; };
+/* Stuff that isn't used anywhere but is nice to pretty-print while + we're decoding everything else. */ +static struct { + char manuf_name[4]; + unsigned int model; + unsigned int serial; + unsigned int year; + unsigned int week; + unsigned int version[2]; + unsigned int nonconformant; + unsigned int type; + + unsigned int x_mm; + unsigned int y_mm; + + unsigned int voltage; + unsigned int sync; + + const char *syncmethod; + const char *range_class; + const char *stereo; +} extra_info; + static int vbe_valid; static struct lb_framebuffer edid_fb;
-static char *manufacturer_name(struct edid *out, unsigned char *x) +static char *manufacturer_name(unsigned char *x) { - out->manuf_name[0] = ((x[0] & 0x7C) >> 2) + '@'; - out->manuf_name[1] = ((x[0] & 0x03) << 3) + ((x[1] & 0xE0) >> 5) + '@'; - out->manuf_name[2] = (x[1] & 0x1F) + '@'; - out->manuf_name[3] = 0; + 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[2] = (x[1] & 0x1F) + '@'; + extra_info.manuf_name[3] = 0;
- if (isupper(out->manuf_name[0]) && - isupper(out->manuf_name[1]) && - isupper(out->manuf_name[2])) - return out->manuf_name; + if (isupper(extra_info.manuf_name[0]) && + isupper(extra_info.manuf_name[1]) && + isupper(extra_info.manuf_name[2])) + return extra_info.manuf_name;
return NULL; } @@ -258,7 +281,7 @@ detailed_block(struct edid *out, unsigned char *x, int in_extension, int v_max_offset = 0, v_min_offset = 0; int is_cvt = 0; c->has_range_descriptor = 1; - out->range_class = ""; + extra_info.range_class = ""; /* * XXX todo: implement feature flags, vtd blocks * XXX check: ranges are well-formed; block termination if no vtd @@ -285,25 +308,25 @@ detailed_block(struct edid *out, unsigned char *x, int in_extension, */ switch (x[10]) { case 0x00: /* default gtf */ - out->range_class = "GTF"; + extra_info.range_class = "GTF"; break; case 0x01: /* range limits only */ - out->range_class = "bare limits"; + extra_info.range_class = "bare limits"; if (!c->claims_one_point_four) c->has_valid_range_descriptor = 0; break; case 0x02: /* secondary gtf curve */ - out->range_class = "GTF with icing"; + extra_info.range_class = "GTF with icing"; break; case 0x04: /* cvt */ - out->range_class = "CVT"; + extra_info.range_class = "CVT"; is_cvt = 1; if (!c->claims_one_point_four) c->has_valid_range_descriptor = 0; break; default: /* invalid */ c->has_valid_range_descriptor = 0; - out->range_class = "invalid"; + extra_info.range_class = "invalid"; break; }
@@ -312,7 +335,7 @@ detailed_block(struct edid *out, unsigned char *x, int in_extension, 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", - out->range_class, + 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]) @@ -423,8 +446,8 @@ detailed_block(struct edid *out, unsigned char *x, int in_extension, if (! c->did_detailed_timing){ /* Edid contains pixel clock in terms of 10KHz */ out->pixel_clock = (x[0] + (x[1] << 8)) * 10; - out->x_mm = (x[12] + ((x[14] & 0xF0) << 4)); - out->y_mm = (x[13] + ((x[14] & 0x0F) << 8)); + extra_info.x_mm = (x[12] + ((x[14] & 0xF0) << 4)); + extra_info.y_mm = (x[13] + ((x[14] & 0x0F) << 8)); out->ha = (x[2] + ((x[4] & 0xF0) << 4)); out->hbl = (x[3] + ((x[4] & 0x0F) << 8)); out->hso = (x[8] + ((x[11] & 0xC0) << 2)); @@ -464,41 +487,41 @@ detailed_block(struct edid *out, unsigned char *x, int in_extension, c->did_detailed_timing = 1; switch ((x[17] & 0x18) >> 3) { case 0x00: - out->syncmethod = " analog composite"; + extra_info.syncmethod = " analog composite"; break; case 0x01: - out->syncmethod = " bipolar analog composite"; + extra_info.syncmethod = " bipolar analog composite"; break; case 0x02: - out->syncmethod = " digital composite"; + extra_info.syncmethod = " digital composite"; break; case 0x03: - out->syncmethod = ""; + extra_info.syncmethod = ""; break; } out->pvsync = (x[17] & (1 << 2)) ? '+' : '-'; out->phsync = (x[17] & (1 << 1)) ? '+' : '-'; switch (x[17] & 0x61) { case 0x20: - out->stereo = "field sequential L/R"; + extra_info.stereo = "field sequential L/R"; break; case 0x40: - out->stereo = "field sequential R/L"; + extra_info.stereo = "field sequential R/L"; break; case 0x21: - out->stereo = "interleaved right even"; + extra_info.stereo = "interleaved right even"; break; case 0x41: - out->stereo = "interleaved left even"; + extra_info.stereo = "interleaved left even"; break; case 0x60: - out->stereo = "four way interleaved"; + extra_info.stereo = "four way interleaved"; break; case 0x61: - out->stereo = "side by side interleaved"; + extra_info.stereo = "side by side interleaved"; break; default: - out->stereo = ""; + extra_info.stereo = ""; break; }
@@ -507,16 +530,16 @@ detailed_block(struct edid *out, unsigned char *x, int in_extension, " %04x %04x %04x %04x vborder %x\n" " %chsync %cvsync%s%s %s\n", out->pixel_clock, - out->x_mm, - out->y_mm, + extra_info.x_mm, + extra_info.y_mm, out->ha, out->ha + out->hso, out->ha + out->hso + out->hspw, out->ha + out->hbl, out->hborder, out->va, out->va + out->vso, out->va + out->vso + out->vspw, out->va + out->vbl, out->vborder, out->phsync, out->pvsync, - out->syncmethod, x[17] & 0x80 ?" interlaced" : "", - out->stereo - ); + extra_info.syncmethod, x[17] & 0x80 ?" interlaced" : "", + extra_info.stereo + ); return 1; }
@@ -983,15 +1006,15 @@ int decode_edid(unsigned char *edid, int size, struct edid *out) }
memset(out, 0, sizeof(*out)); - if (manufacturer_name(out, edid + 0x08)) + if (manufacturer_name(edid + 0x08)) c.manufacturer_name_well_formed = 1;
- out->model = (unsigned short)(edid[0x0A] + (edid[0x0B] << 8)); - out->serial = (unsigned int)(edid[0x0C] + (edid[0x0D] << 8) + extra_info.model = (unsigned short)(edid[0x0A] + (edid[0x0B] << 8)); + extra_info.serial = (unsigned int)(edid[0x0C] + (edid[0x0D] << 8) + (edid[0x0E] << 16) + (edid[0x0F] << 24));
printk(BIOS_SPEW, "Manufacturer: %s Model %x Serial Number %u\n", - out->manuf_name, + extra_info.manuf_name, (unsigned short)(edid[0x0A] + (edid[0x0B] << 8)), (unsigned int)(edid[0x0C] + (edid[0x0D] << 8) + (edid[0x0E] << 16) + (edid[0x0F] << 24))); @@ -1004,24 +1027,24 @@ int decode_edid(unsigned char *edid, int size, struct edid *out) c.has_valid_year = 1; printk(BIOS_SPEW, "Made week %hhd of model year %hhd\n", edid[0x10], edid[0x11]); - out->week = edid[0x10]; - out->year = 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 */ if (edid[0x11] + 90 <= 2013) { c.has_valid_year = 1; printk(BIOS_SPEW, "Made week %hhd of %d\n", edid[0x10], edid[0x11] + 1990); - out->week = edid[0x10]; - out->year = edid[0x11] + 1990; + extra_info.week = edid[0x10]; + extra_info.year = edid[0x11] + 1990; } } } }
printk(BIOS_SPEW, "EDID version: %hhd.%hhd\n", edid[0x12], edid[0x13]); - out->version[0] = edid[0x12]; - out->version[1] = edid[0x13]; + extra_info.version[0] = edid[0x12]; + extra_info.version[1] = edid[0x13];
if (edid[0x12] == 1) { if (edid[0x13] > 4) { @@ -1068,7 +1091,7 @@ int decode_edid(unsigned char *edid, int size, struct edid *out) default: c.nonconformant_digital_display = 1; } - out->type = edid[0x14] & 0x0f; + extra_info.type = edid[0x14] & 0x0f; } else if (c.claims_one_point_two) { conformance_mask = 0x7E; if (edid[0x14] & 0x01) { @@ -1079,13 +1102,13 @@ int decode_edid(unsigned char *edid, int size, struct edid *out)
if (!c.nonconformant_digital_display) c.nonconformant_digital_display = edid[0x14] & conformance_mask; - out->nonconformant = c.nonconformant_digital_display; + extra_info.nonconformant = c.nonconformant_digital_display; } else { analog = 1; int voltage = (edid[0x14] & 0x60) >> 5; int sync = (edid[0x14] & 0x0F); - out->voltage = voltage; - out->sync = sync; + extra_info.voltage = voltage; + extra_info.sync = sync;
printk(BIOS_SPEW, "Analog display, Input voltage level: %s V\n", voltage == 3 ? "0.7/0.7" : @@ -1117,19 +1140,15 @@ int decode_edid(unsigned char *edid, int size, struct edid *out) if (edid[0x15] && edid[0x16]) { printk(BIOS_SPEW, "Maximum image size: %d cm x %d cm\n", edid[0x15], edid[0x16]); - out->xsize_cm = edid[0x15]; - out->ysize_cm = edid[0x16]; } 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); - out->aspect_landscape = ratio / 100; } 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); - out->aspect_portrait = ratio / 100; } } else { /* Either or both can be zero for 1.3 and before */