diff options
Diffstat (limited to '')
| -rw-r--r-- | drv_LCDLinux.c | 28 |
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 */ |