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video: Handle the 'bell' character

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This can be sent when to many characters are entered. Make sure it is
ignored and does not cause a character to be displayed.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-01-14 18:10:38 -07:00 committed by Anatolij Gustschin
parent f266178698
commit 5508f10ac9
2 changed files with 4 additions and 1 deletions
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3
drivers/video/vidconsole-uclass.c
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@ -91,6 +91,9 @@ int vidconsole_put_char(struct udevice *dev, char ch)
int ret;
switch (ch) {
case '\a':
/* beep */
break;
case '\r':
priv->xcur_frac = 0;
break;

2
test/dm/video.c
View file

@ -124,7 +124,7 @@ DM_TEST(dm_test_video_text, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
static int dm_test_video_chars(struct unit_test_state *uts)
{
struct udevice *dev, *con;
const char *test_string = "Well\b\b\b\bxhe is\r \n\ta very modest \bman\n\t\tand Has much to\b\bto be modest about.";
const char *test_string = "Well\b\b\b\bxhe is\r \n\ta very \amodest \bman\n\t\tand Has much to\b\bto be modest about.";
const char *s;
ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));