[U-Boot] [PATCH 06/19] video: Provide a left margin for the text console

Simon Glass
2016-01-15T01:10:39Z

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>
---

drivers/video/vidconsole-uclass.c | 6 +++---
include/video_console.h | 2 ++
2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c
index d9a9615..fec4a60 100644
--- a/drivers/video/vidconsole-uclass.c
+++ b/drivers/video/vidconsole-uclass.c
@@ -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);
diff --git a/include/video_console.h b/include/video_console.h
index 2f7012e..3bfc37f 100644
--- a/include/video_console.h
+++ b/include/video_console.h
@@ -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;
};

/**
--
2.6.0.rc2.230.g3dd15c0