Patrick Georgi (pgeorgi@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11407
-gerrit
commit d99752ae9cf7fac8dc163be5651292f3fdca9707 Author: Daisuke Nojiri dnojiri@chromium.org Date: Fri Jul 31 15:22:58 2015 -0700
video: add video_printf
video_printf prints strings on the screen with specified foreground and background color.
BUG=none BRANCH=smaug TEST=verified messages printed on Smaug
Change-Id: I619625f7d4c5bc19cd9de64a0ba07899cf9ba289 Signed-off-by: Patrick Georgi patrick@georgi-clan.de Original-Commit-Id: e0ac4cb4c0d43b40f5c8f8f5a90eac45b0263b77 Original-Reviewed-on: https://chromium-review.googlesource.com/290130 Original-Reviewed-by: Aaron Durbin adurbin@chromium.org Original-(cherry picked from commit 75ea2c025d629c8fabc0cb859c4e8ab8ba6ce6e3) Original-Change-Id: Ief6d1fc820330b54f37ad9260cf3119853460b70 Original-Signed-off-by: Daisuke Nojiri dnojiri@chromium.org Original-Reviewed-on: https://chromium-review.googlesource.com/290373 --- payloads/libpayload/drivers/video/video.c | 21 +++++++++++++++++++++ payloads/libpayload/include/libpayload.h | 5 +++++ 2 files changed, 26 insertions(+)
diff --git a/payloads/libpayload/drivers/video/video.c b/payloads/libpayload/drivers/video/video.c index 834a121..f183517 100644 --- a/payloads/libpayload/drivers/video/video.c +++ b/payloads/libpayload/drivers/video/video.c @@ -162,6 +162,27 @@ void video_console_putchar(unsigned int ch) video_console_fixup_cursor(); }
+void video_printf(int foreground, int background, const char *fmt, ...) +{ + int i = 0, len; + char str[200]; + + va_list ap; + va_start(ap, fmt); + len = vsnprintf(str, ARRAY_SIZE(str), fmt, ap); + va_end(ap); + if (len <= 0) + return; + + foreground &= 0xf; + foreground <<= 8; + background &= 0xf; + background <<= 12; + + while (str[i]) + video_console_putchar(str[i++] | foreground | background); +} + void video_console_get_cursor(unsigned int *x, unsigned int *y, unsigned int *en) { *x=0; diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h index 5e787e1..3ae3590 100644 --- a/payloads/libpayload/include/libpayload.h +++ b/payloads/libpayload/include/libpayload.h @@ -206,6 +206,11 @@ void video_console_clear(void); void video_console_cursor_enable(int state); void video_console_get_cursor(unsigned int *x, unsigned int *y, unsigned int *en); void video_console_set_cursor(unsigned int cursorx, unsigned int cursory); +/* + * print characters on video console with colors. note that there is a size + * restriction for the internal buffer. so, output string can be truncated. + */ +void video_printf(int foreground, int background, const char *fmt, ...); /** @} */
/**
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Patrick Georgi