/* Define to 1 if you have the <linux/isdn.h> header file. */
#undef HAVE_LINUX_ISDN_H
+/* Define to 1 if you have the <linux/lcd-linux.h> header file. */
+#undef HAVE_LINUX_LCD_LINUX_H
+
/* Define to 1 if you have the <linux/parport.h> header file. */
#undef HAVE_LINUX_PARPORT_H
done
+# check for LCD-Linux
+
+for ac_header in linux/lcd-linux.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## ---------------------------------------------------- ##
+## Report this to lcd4linux-users@lists.sourceforge.net ##
+## ---------------------------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ has_lcd_linux="true"
+else
+ has_lcd_linux="false"
+fi
+
+done
+
+
# check for python
echo "$as_me:$LINENO: checking if python support is wanted" >&5
echo $ECHO_N "checking if python support is wanted... $ECHO_C" >&6
fi
if test "$LCDLINUX" = "yes"; then
- TEXT="yes"
- DRIVERS="$DRIVERS drv_LCDLinux.o"
+ if test "$has_lcd_linux" = true; then
+ TEXT="yes"
+ DRIVERS="$DRIVERS drv_LCDLinux.o"
cat >>confdefs.h <<\_ACEOF
#define WITH_LCDLINUX 1
_ACEOF
+ else
+ { echo "$as_me:$LINENO: WARNING: lcd-linux.h not found: LCD-Linux driver disabled" >&5
+echo "$as_me: WARNING: lcd-linux.h not found: LCD-Linux driver disabled" >&2;}
+ fi
fi
if test "$LCDTERM" = "yes"; then
# check for serdisplib
AC_CHECK_HEADERS(serdisplib/serdisp.h, [has_serdisplib="true"], [has_serdisplib="false"])
+# check for LCD-Linux
+AC_CHECK_HEADERS(linux/lcd-linux.h, [has_lcd_linux="true"], [has_lcd_linux="false"])
+
# check for python
AC_MSG_CHECKING(if python support is wanted)
AC_ARG_WITH(python,
fi
if test "$LCDLINUX" = "yes"; then
- TEXT="yes"
- DRIVERS="$DRIVERS drv_LCDLinux.o"
- AC_DEFINE(WITH_LCDLINUX,1,[LCD-Linux driver])
+ if test "$has_lcd_linux" = true; then
+ TEXT="yes"
+ DRIVERS="$DRIVERS drv_LCDLinux.o"
+ AC_DEFINE(WITH_LCDLINUX,1,[LCD-Linux driver])
+ else
+ AC_MSG_WARN(lcd-linux.h not found: LCD-Linux driver disabled)
+ fi
fi
if test "$LCDTERM" = "yes"; then
-/* $Id: drv_LCDLinux.c,v 1.9 2005/06/15 05:24:35 reinelt Exp $
+/* $Id: drv_LCDLinux.c,v 1.10 2005/08/27 07:02:25 reinelt Exp $
*
* driver for the LCD-Linux HD44780 kernel driver
* http://lcd-linux.sourceforge.net
*
*
* $Log: drv_LCDLinux.c,v $
+ * Revision 1.10 2005/08/27 07:02:25 reinelt
+ * LCD-Linux updated to 0.9.0
+ *
* Revision 1.9 2005/06/15 05:24:35 reinelt
* updated LCD-Linux driver to version 0.8.9
*
#include "drv.h"
#include "drv_generic_text.h"
-#define HD44780_MAIN
+#define LCD_LINUX_MAIN
#include "drv_LCDLinux.h"
static char Name[] = "LCD-Linux";
static char Device[] = "/dev/lcd";
static int lcdlinux_fd = -1;
+static int raw_mode = 0;
/****************************************/
static void drv_LL_clear(void)
{
- /* Fixme: is there no otherway to clear the display? */
- drv_LL_send("\14", 1); /* Form Feed */
+ /* No return value check since this ioctl cannot fail */
+ ioctl(lcdlinux_fd, IOCTL_CLEAR_DISP);
}
{
char *s;
int rows = -1, cols = -1;
- int use_busy = 0;
- struct lcd_driver buf;
+ int use_busy = 0, commit = 0;
+ struct lcd_parameters buf;
/* emit version information */
info("%s: Version %s", Name, LCD_LINUX_VERSION);
error("%s: Could not query display information!", Name);
return -1;
}
- info("%s: %dx%d display at 0x%x, %d controllers, flags=0x%02x:", Name, buf.disp_cols, buf.cntr_rows, buf.io, 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);
-#if 0
- /* these two flags vanished with release 0.8.9 */
- info("%s: /proc support %sabled", Name, buf.flags & LCD_PROC_ON ? "en" : "dis");
- info("%s: tty support %sabled", Name, buf.flags & LCD_ETTY_ON ? "en" : "dis");
-#endif
- info("%s: console support %sabled", Name, buf.flags & LCD_CONSOLE ? "en" : "dis");
- info("%s: bus width %d bits", Name, buf.flags & LCD_4BITS_BUS ? 4 : 8);
- info("%s: font size %s", Name, buf.flags & LCD_5X10_FONT ? "5x10" : "5x8");
- info("%s: busy-flag checking %sabled", Name, buf.flags & LCD_CHECK_BF ? "en" : "dis");
+ 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 */
- if ((rows > 0 && rows != buf.cntr_rows) || (cols > 0 && cols != buf.disp_cols)) {
+ 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;
- buf.disp_cols = cols;
- if (ioctl(lcdlinux_fd, IOCTL_SET_PARAM, &buf) != 0) {
- error("%s: ioctl(IOCTL_SET_PARAM) failed: %s", Name, strerror(errno));
- error("%s: Could not set display geometry!", Name);
- return -1;
- }
+ buf.cntr_cols = cols;
+ commit = 1;
}
DROWS = buf.cntr_rows;
- DCOLS = buf.disp_cols;
+ DCOLS = buf.cntr_cols;
/* overwrite busy-flag checking from lcd4linux.conf */
cfg_number(section, "UseBusy", 0, 0, 1, &use_busy);
- if (use_busy && !(buf.flags & LCD_CHECK_BF)) {
+ if (use_busy && !(buf.flags & HD44780_CHECK_BF)) {
info("%s: activating busy-flag checking", Name);
- buf.flags |= LCD_CHECK_BF;
- if (ioctl(lcdlinux_fd, IOCTL_SET_PARAM, &buf) != 0) {
- error("%s: ioctl(IOCTL_SET_PARAM) failed: %s", Name, strerror(errno));
- error("%s: Could not activate busy-flag checking!", Name);
- return -1;
- }
- } else if (!use_busy && (buf.flags & LCD_CHECK_BF)) {
+ buf.flags |= HD44780_CHECK_BF;
+ commit = 1;
+ } else if (!use_busy && (buf.flags & HD44780_CHECK_BF)) {
info("%s: deactivating busy-flag checking", Name);
- buf.flags &= ~LCD_CHECK_BF;
- if (ioctl(lcdlinux_fd, IOCTL_SET_PARAM, &buf) != 0) {
- error("%s: ioctl(IOCTL_SET_PARAM) failed: %s", Name, strerror(errno));
- error("%s: Could not deactivate busy-flag checking!", Name);
- return -1;
- }
+ buf.flags &= ~HD44780_CHECK_BF;
+ 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;
+ }
+
/* initialize display */
drv_LL_clear(); /* clear display */
+ /* Disable control characters interpretation. */
+ /* No return value check since this ioctl cannot fail */
+ raw_mode = 1;
+ ioctl(lcdlinux_fd, IOCTL_RAW_MODE, &raw_mode);
+
if (!quiet) {
char buffer[40];
qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
if (!quiet) {
drv_generic_text_greet("goodbye!", NULL);
}
-
+
+ /* Enable control characters interpretation. */
+ /* No return value check since this ioctl cannot fail */
+ raw_mode = 0;
+ ioctl(lcdlinux_fd, IOCTL_RAW_MODE, &raw_mode);
+
/* close device */
close(lcdlinux_fd);
-/* lcd.h
+/* hd44780.h
*
- * $Id: drv_LCDLinux.h,v 1.5 2005/06/15 05:24:35 reinelt Exp $
+ * $Id: drv_LCDLinux.h,v 1.6 2005/08/27 07:02:25 reinelt Exp $
*
- * LCD driver for HD44780 compatible displays connected to the parallel port.
+ * LCD-Linux:
+ * Driver for HD44780 compatible displays connected to the parallel port.
*
- * External interface header file.
+ * HD44780 header file.
*
* Copyright (C) 2004, 2005 Mattia Jona-Lasinio (mjona@users.sourceforge.net)
*
*
*/
-#ifndef LCD_LINUX_H
-#define LCD_LINUX_H
+#ifndef HD44780_H
+#define HD44780_H
-#ifndef HD44780_MAIN
-#warning
-#warning LCD-Linux is still in development stage and
-#warning aims at speed and optimization. For these
-#warning reasons there is no guarantee of backward
-#warning compatibility between different LCD-Linux
-#warning versions. Be sure to use the lcd-linux.h
-#warning file of the same version as the module.
-#warning
-#endif
+#include <linux/lcd-linux.h>
-#define LCD_LINUX_VERSION "0.8.9-CVS" /* Version number */
+#define HD44780_VERSION "0.9.0" /* Version number */
+#define HD44780_STRING "hd44780"
-#define LCD_MAJOR 120 /* Major number for this device
- * Set this to 0 for dynamic allocation
- */
-#include <linux/types.h>
-
-struct lcd_driver {
- /* Hardware */
- unsigned short io; /* Parport base address */
- unsigned short flags; /* Flags (see Documentation) */
+/* IOCTLs */
+#include <asm/ioctl.h>
+#define IOCTL_RAW_CMD _IOW(LCD_MAJOR, 0, unsigned char *)
- /* Display geometry */
- unsigned short num_cntr; /* Number of available controllers */
- unsigned short cntr_rows; /* Rows per controller */
- unsigned short disp_cols; /* Columns */
- unsigned short frames; /* Framebuffer frames */
+/* flags */
+#define HD44780_CHECK_BF 0x0001 /* Do busy flag checking */
+#define HD44780_4BITS_BUS 0x0002 /* Set the bus length to 4 bits */
+#define HD44780_5X10_FONT 0x0004 /* Use 5x10 dots fonts */
- unsigned short tabstop; /* Length of tab character */
-};
-/* IOCTLs */
-#include <asm/ioctl.h>
-#define IOCTL_SET_PARAM _IOW(LCD_MAJOR, 0, struct lcd_driver *)
-#define IOCTL_GET_PARAM _IOR(LCD_MAJOR, 1, struct lcd_driver *)
-#define IOCTL_RAW_CMD _IOW(LCD_MAJOR, 2, unsigned char *)
-#define IOCTL_RESET_CHARMAP _IOW(LCD_MAJOR, 3, void *)
-#define IOCTL_SAVE_CHARMAP _IOW(LCD_MAJOR, 4, void *)
-#define IOCTL_RESTORE_CHARMAP _IOW(LCD_MAJOR, 5, void *)
-#define IOCTL_SWAP_CHARMAP _IOW(LCD_MAJOR, 6, void *)
-#define LCD_CHECK_BF 0x0001 /* Do busy flag checking */
-#define LCD_CONSOLE 0x0002 /* Enable the console support */
-#define LCD_4BITS_BUS 0x0004 /* Set the bus length to 4 bits */
-#define LCD_5X10_FONT 0x0008 /* Use 5x10 dots fonts */
+/*** HD44780 Command Set ***/
+/* Clear Display*/
+#define CLR_DISP 0x01 /* Clear entire display; cursor at row 0, column 0 */
+/* Return Home */
+#define RET_HOME 0x02 /* Cursor at row 0, column 0; display content doesn't change */
-#ifdef __KERNEL__ /* The rest is for kernel only */
+/* Entry Mode Set */
+#define DISP_SHIFT_ON 0x05 /* Shift display, not cursor after data write */
+#define DISP_SHIFT_OFF 0x04 /* Shift cursor, not display after data write */
+#define CURS_INC 0x06 /* Shift on the right after data read/write */
+#define CURS_DEC 0x04 /* Shift on the left after data read/write */
-#include <linux/version.h>
+/* Display on/off Control */
+#define BLINK_ON 0x09 /* Cursor blinking on */
+#define BLINK_OFF 0x08 /* Cursor blinking off */
+#define CURS_ON 0x0a /* Display Cursor */
+#define CURS_OFF 0x08 /* Hide Cursor */
+#define DISP_ON 0x0c /* Turn on display updating */
+#define DISP_OFF 0x08 /* Freeze display content */
-#ifndef KERNEL_VERSION
-#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-#endif
+/* Cursor or Display Shift */
+#define SHIFT_RIGHT 0x14 /* Shift on the right */
+#define SHIFT_LEFT 0x10 /* Shift on the left */
+#define SHIFT_DISP 0x18 /* Shift display */
+#define SHIFT_CURS 0x10 /* Shift cursor */
-#ifndef LINUX_VERSION_CODE
-#error - LINUX_VERSION_CODE undefined.
-#endif
+/* Function Set */
+#define FONT_5X10 0x24 /* Select 5x10 dots font */
+#define FONT_5X8 0x20 /* Select 5x8 dots font */
+#define DISP_2_LINES 0x28 /* Select 2 lines display (only 5x8 font allowed) */
+#define DISP_1_LINE 0x20 /* Select 1 line display */
+#define BUS_8_BITS 0x30 /* Set 8 data bits */
+#define BUS_4_BITS 0x20 /* Set 4 data bits */
-/* External interface */
-int lcd_init(struct lcd_driver *);
-void lcd_exit(void);
-int lcd_ioctl(unsigned int, void *);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
-ssize_t lcd_write(const char *, size_t, unsigned int);
-ssize_t lcd_read(char *, size_t, unsigned int);
-#else
-int lcd_write(const char *, int, unsigned int);
-int lcd_read(char *, int, unsigned int);
-#endif
+/* Set CGRAM Address */
+#define CGRAM_IO 0x40 /* Access the CGRAM */
-#endif /* __KERNEL__ */
+/* Set DDRAM Address */
+#define DDRAM_IO 0x80 /* Access the DDRAM */
-#endif /* External interface included */
+#endif /* HD44780 included */
#Display 'SerDispLib'
-#Display 'LCD-Linux'
+Display 'LCD-Linux'
#Display 'LK204'
#Display 'MI240'
#Display 'CW12232'
#Display 'M50530-24x8'
#Display 'LCDTerm'
#Display 'SimpleLCD'
-Display 'BA63'
+#Display 'BA63'
#Display 'CT20x4'
#Display 'T6963-240x64'
#Display 'XWindow'
projects / lcd4linux.git / commitdiff