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-rw-r--r--drv_LCDLinux.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/drv_LCDLinux.c b/drv_LCDLinux.c
index 7f2ec5f..8fb7c51 100644
--- a/drv_LCDLinux.c
+++ b/drv_LCDLinux.c
@@ -1,4 +1,4 @@
-/* $Id: drv_LCDLinux.c,v 1.12 2006/01/30 06:25:52 reinelt Exp $
+/* $Id: drv_LCDLinux.c,v 1.13 2006/04/17 08:10:42 reinelt Exp $
*
* driver for the LCD-Linux HD44780 kernel driver
* http://lcd-linux.sourceforge.net
@@ -24,6 +24,9 @@
*
*
* $Log: drv_LCDLinux.c,v $
+ * Revision 1.13 2006/04/17 08:10:42 reinelt
+ * LCDLinux patch from Mattia; widget_image moved to EXTRA_SOURCE
+ *
* Revision 1.12 2006/01/30 06:25:52 reinelt
* added CVS Revision
*
@@ -171,7 +174,7 @@ static int drv_LL_start(const char *section, const int quiet)
{
char *s;
int rows = -1, cols = -1;
- int use_busy = 0, commit = 0;
+ int use_busy = 0, bus4bits = 0, commit = 0;
struct lcd_parameters buf;
/* emit version information */
@@ -202,16 +205,15 @@ static int drv_LL_start(const char *section, const int quiet)
error("%s: Could not query display information!", Name);
return -1;
}
- info("%s: %dx%d display with %d controllers, flags=0x%02x:", Name, buf.cntr_cols, buf.cntr_rows, buf.num_cntr,
- buf.flags);
-
+ info("%s: %dx%d display with %d controllers, flags=0x%02x:",
+ Name, buf.cntr_cols, buf.cntr_rows, buf.num_cntr, buf.flags);
info("%s: busy-flag checking %sabled", Name, buf.flags & HD44780_CHECK_BF ? "en" : "dis");
info("%s: bus width %d bits", Name, buf.flags & HD44780_4BITS_BUS ? 4 : 8);
info("%s: font size %s", Name, buf.flags & HD44780_5X10_FONT ? "5x10" : "5x8");
- /* overwrite with size from lcd4linux.conf */
+ /* overwrite width size from lcd4linux.conf */
if ((rows > 0 && rows != buf.cntr_rows) || (cols > 0 && cols != buf.cntr_cols)) {
info("%s: changing size to %dx%d", Name, cols, rows);
buf.cntr_rows = rows;
@@ -234,6 +236,18 @@ static int drv_LL_start(const char *section, const int quiet)
commit = 1;
}
+ /* overwrite bus length from lcd4linux.conf */
+ cfg_number(section, "Bus4Bit", 0, 0, 1, &bus4bits);
+ if (bus4bits && !(buf.flags & HD44780_4BITS_BUS)) {
+ info("%s: setting bus length to 4 bits", Name);
+ buf.flags |= HD44780_4BITS_BUS;
+ commit = 1;
+ } else if (!bus4bits && (buf.flags & HD44780_4BITS_BUS)) {
+ info("%s: setting bus length to 8 bits", Name);
+ buf.flags &= ~HD44780_4BITS_BUS;
+ commit = 1;
+ }
+
if (commit && ioctl(lcdlinux_fd, IOCTL_SET_PARAM, &buf) != 0) {
error("%s: ioctl(IOCTL_SET_PARAM) failed: %s", Name, strerror(errno));
return -1;
@@ -297,7 +311,7 @@ int drv_LL_init(const char *section, const int quiet)
int asc255bug;
int ret;
- info("%s: %s", Name, "$Revision: 1.12 $");
+ info("%s: %s", Name, "$Revision: 1.13 $");
/* display preferences */
XRES = 5; /* pixel width of one char */