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authorDaisuke Nojiri <dnojiri@chromium.org>2015-07-31 15:22:58 -0700
committerPatrick Georgi <pgeorgi@google.com>2015-09-08 11:51:26 +0000
commitabe03d25e2890eec96df5b8e8372a9b5a1ffd1d0 (patch)
tree5964ace587015e7a67e303c8521042859033f014 /payloads
parent4bd65e1c0cd53802abd3598c03d28b82a11be46d (diff)
downloadcoreboot-abe03d25e2890eec96df5b8e8372a9b5a1ffd1d0.tar.xz
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 Reviewed-on: http://review.coreboot.org/11407 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'payloads')
-rw-r--r--payloads/libpayload/drivers/video/video.c21
-rw-r--r--payloads/libpayload/include/libpayload.h5
2 files changed, 26 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/video/video.c b/payloads/libpayload/drivers/video/video.c
index 834a121e19..f183517881 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 5e787e1ff7..3ae3590558 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, ...);
/** @} */
/**