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video: Provide a left margin for the text console

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Allow the left margin to be set so that text does not have to be right up
against the left side. On some panels this makes it hard to read.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-01-14 18:10:39 -07:00 committed by Anatolij Gustschin
parent 5508f10ac9
commit c5b77d01d1
2 changed files with 5 additions and 3 deletions
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6
drivers/video/vidconsole-uclass.c
View File

@ -53,7 +53,7 @@ static void vidconsole_back(struct udevice *dev)
struct vidconsole_priv *priv = dev_get_uclass_priv(dev);
priv->xcur_frac -= VID_TO_POS(priv->x_charsize);
if (priv->xcur_frac < 0) {
if (priv->xcur_frac < priv->xstart_frac) {
priv->xcur_frac = (priv->cols - 1) *
VID_TO_POS(priv->x_charsize);
priv->ycur -= priv->y_charsize;
@ -71,7 +71,7 @@ static void vidconsole_newline(struct udevice *dev)
const int rows = CONFIG_CONSOLE_SCROLL_LINES;
int i;
priv->xcur_frac = 0;
priv->xcur_frac = priv->xstart_frac;
priv->ycur += priv->y_charsize;
/* Check if we need to scroll the terminal */
@ -95,7 +95,7 @@ int vidconsole_put_char(struct udevice *dev, char ch)
/* beep */
break;
case '\r':
priv->xcur_frac = 0;
priv->xcur_frac = priv->xstart_frac;
break;
case '\n':
vidconsole_newline(dev);

2
include/video_console.h
View File

@ -27,6 +27,7 @@
* @y_charsize: Character height in pixels
* @tab_width_frac: Tab width in fractional units
* @xsize_frac: Width of the display in fractional units
* @xstart_frac: Left margin for the text console in fractional units
*/
struct vidconsole_priv {
struct stdio_dev sdev;
@ -38,6 +39,7 @@ struct vidconsole_priv {
int y_charsize;
int tab_width_frac;
int xsize_frac;
int xstart_frac;
};
/**