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authorreinelt <>2000-08-09 09:50:29 +0000
committerreinelt <>2000-08-09 09:50:29 +0000
commit58deee6b03e396b6cba5e4e888940419c240866b (patch)
treeddf01503c9b524efbe08b2887ab9b9f0bed1dc55 /HD44780.c
parenta7f2de2a1d1fb7b5c8b3ba277ea66f01e692dd18 (diff)
downloadlcd4linux-58deee6b03e396b6cba5e4e888940419c240866b.tar.gz
[lcd4linux @ 2000-08-09 09:50:29 by reinelt]
opened 0.98 development removed driver-specific signal-handlers added 'quit'-function to driver structure added global signal-handler
Diffstat (limited to 'HD44780.c')
-rw-r--r--HD44780.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/HD44780.c b/HD44780.c
index 3278ad2..a31db00 100644
--- a/HD44780.c
+++ b/HD44780.c
@@ -1,4 +1,4 @@
-/* $Id: HD44780.c,v 1.6 2000/07/31 10:43:44 reinelt Exp $
+/* $Id: HD44780.c,v 1.7 2000/08/09 09:50:29 reinelt Exp $
*
* driver for display modules based on the HD44780 chip
*
@@ -20,6 +20,13 @@
*
*
* $Log: HD44780.c,v $
+ * Revision 1.7 2000/08/09 09:50:29 reinelt
+ *
+ * opened 0.98 development
+ * removed driver-specific signal-handlers
+ * added 'quit'-function to driver structure
+ * added global signal-handler
+ *
* Revision 1.6 2000/07/31 10:43:44 reinelt
*
* some changes to support kernel-2.4 (different layout of various files in /proc)
@@ -70,7 +77,6 @@
#include <string.h>
#include <unistd.h>
#include <time.h>
-#include <signal.h>
#include <errno.h>
#ifdef HAVE_SYS_IO_H
#include <sys/io.h>
@@ -340,8 +346,6 @@ int HD_clear (void)
return 0;
}
-static void HD_quit (int signal); //forward declaration
-
int HD_init (LCD *Self)
{
int rows=-1, cols=-1;
@@ -386,10 +390,6 @@ int HD_init (LCD *Self)
HD_clear();
- signal(SIGINT, HD_quit);
- signal(SIGQUIT, HD_quit);
- signal(SIGTERM, HD_quit);
-
return 0;
}
@@ -518,17 +518,17 @@ int HD_flush (void)
return 0;
}
-int lcd_hello (void); // prototype from lcd4linux.c
-
-static void HD_quit (int signal)
+int HD_quit (void)
{
- debug ("got signal %d\n", signal);
- HD_clear();
- lcd_hello();
- exit (0);
+ debug ("closing port 0x%x\n", Port);
+ if (ioperm(Port, 3, 0)!=0) {
+ fprintf (stderr, "HD44780: ioperm(0x%x) failed: %s\n", Port, strerror(errno));
+ return -1;
+ }
+ return 0;
}
LCD HD44780[] = {
- { "HD44780", 0, 0, XRES, YRES, BARS, HD_init, HD_clear, HD_put, HD_bar, HD_flush },
+ { "HD44780", 0, 0, XRES, YRES, BARS, HD_init, HD_clear, HD_put, HD_bar, HD_flush, HD_quit },
{ NULL }
};