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-rw-r--r--drv_Noritake.c120
1 files changed, 84 insertions, 36 deletions
diff --git a/drv_Noritake.c b/drv_Noritake.c
index 5cd19ae..65a9d72 100644
--- a/drv_Noritake.c
+++ b/drv_Noritake.c
@@ -1,4 +1,4 @@
-/* $Id: drv_Noritake.c,v 1.1 2005/05/04 05:42:38 reinelt Exp $
+/* $Id: drv_Noritake.c,v 1.2 2005/05/04 07:18:44 obconseil Exp $
*
* Driver for a Noritake GU128x32-311 graphical display.
*
@@ -22,6 +22,15 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Log: drv_Noritake.c,v $
+ * Revision 1.2 2005/05/04 07:18:44 obconseil
+ * Driver modified according to Michels's recommendations :
+ *
+ * - Suppressed linux/parport.h depandancy. It was not needed anyway.
+ * - Compile-time disable the wait_busy polling function, replaced with a time wait.
+ * - Replaced the hardwire_* calls by their wire_* equivalent, to adapt other wirings.
+ * - Created a "Models" structure, containing parameters for the display.
+ * - Other cleanups, to remove compile-time warnings.
+ *
* Revision 1.1 2005/05/04 05:42:38 reinelt
* Noritake driver added
*
@@ -80,17 +89,34 @@
#include "udelay.h"
#include "drv_generic_text.h"
#include "drv_generic_parport.h"
-#include <linux/parport.h>
-
static char Name[]="Noritake";
+
+typedef struct {
+ int type;
+ char *name;
+ int rows;
+ int cols;
+ int xres;
+ int yrex;
+ int goto_cost;
+ int protocol;
+} MODEL;
+
+static int Model,Protocol;
+static MODEL Models[] = {
+ { 0x01, "GU311", 4, 21, 6, 8, 5, 1 },
+ { 0x02, "GU311_Graphic", 4, 21, 6, 8, 6, 1 },
+ { 0xff, "Unknown", -1, -1, -1, -1, -1, -1 }
+};
+
static unsigned char SIGNAL_CS; /* Chip select, OUTPUT, negative logic, pport AUTOFEED */
static unsigned char SIGNAL_WR; /* Write OUTPUT, negative logic, pport STOBE */
static unsigned char SIGNAL_RESET; /* Reset, OUTPUT, negative logic, pport INIT */
static unsigned char SIGNAL_BLANK; /* Blank, OUTPUT , negative logic, pport SELECT-IN */
-static unsigned char SIGNAL_BUSY; /* Busy, INPUT , positive logic, pport BUSY,*/
-static unsigned char SIGNAL_FRP; /* Frame Pulse, INPUT , positive logic, pport ACK, not used */
+/* static unsigned char SIGNAL_BUSY;*/ /* Busy, INPUT , positive logic, pport BUSY, not used */
+/* static unsigned char SIGNAL_FRP;*/ /* Frame Pulse, INPUT , positive logic, pport ACK, not used */
void (*drv_Noritake_clear) (void) ;
/* Data port is positive logic */
@@ -102,6 +128,10 @@ void (*drv_Noritake_clear) (void) ;
/* Low-level parport driving functions */
+/* This function was used to pool the BUSY line on the parallel port, which
+can be linked to the BUSY line on the display. But since it works
+with a timed wait, this function is not necessary, and is kept just in case.*/
+#if 0
static void drv_GU311_wait_busy(void)
{
char c;
@@ -114,6 +144,8 @@ static void drv_GU311_wait_busy(void)
c = drv_generic_parport_status();
}
}
+#endif
+
static void drv_GU311_send_char(char c)
{
@@ -181,23 +213,18 @@ static void drv_GU311_reset (void)
}
-static int drv_GU311_start(const char *section, const int quiet)
+static int drv_GU311_start(const char *section)
{
char cmd[3] = { 0x01, 'O' };
- DROWS = 4;
- DCOLS = 21;
- /* real worker functions */
- drv_generic_text_real_write = drv_GU311_write;
- drv_Noritake_clear = drv_GU311_clear;
/* Parallel port opening and association */
if (drv_generic_parport_open(section, Name) < 0) return -1;
- if ((SIGNAL_CS=drv_generic_parport_hardwire_ctrl ("CS", "AUTOFD"))==0xff) return -1;
- if ((SIGNAL_WR=drv_generic_parport_hardwire_ctrl ("WR", "STROBE"))==0xff) return -1;
- if ((SIGNAL_RESET=drv_generic_parport_hardwire_ctrl ("RESET", "INIT"))==0xff) return -1;
- if ((SIGNAL_BLANK=drv_generic_parport_hardwire_ctrl ("BLANK", "SELECT") )==0xff) return -1;
- SIGNAL_BUSY=PARPORT_STATUS_BUSY;
- SIGNAL_FRP=PARPORT_STATUS_ACK;
+ if ((SIGNAL_CS=drv_generic_parport_wire_ctrl ("CS", "AUTOFD"))==0xff) return -1;
+ if ((SIGNAL_WR=drv_generic_parport_wire_ctrl ("WR", "STROBE"))==0xff) return -1;
+ if ((SIGNAL_RESET=drv_generic_parport_wire_ctrl ("RESET", "INIT"))==0xff) return -1;
+ if ((SIGNAL_BLANK=drv_generic_parport_wire_ctrl ("BLANK", "SELECT") )==0xff) return -1;
+ /* SIGNAL_BUSY=PARPORT_STATUS_BUSY; */ /* Not currently needed */
+ /* SIGNAL_FRP=PARPORT_STATUS_ACK; */ /* Not currently needed */
/* Signals configuration */
drv_generic_parport_direction(0); /* parallel port in output mode */
@@ -220,18 +247,47 @@ static int drv_GU311_start(const char *section, const int quiet)
-static int drv_Noritake_start (const char *section, const int quiet)
+static int drv_Noritake_start (const char *section)
{
char * model=0;
-
-
- model = cfg_get(section,"Model","GU311");
-
- if ( model && (strcasecmp("GU311",model) == 0) )
- return drv_GU311_start(section,quiet);
+ int i;
+ model=cfg_get(section, "Model", NULL);
+ if (model!=NULL && *model!='\0') {
+ for (i=0; Models[i].type!=0xff; i++) {
+ if (strcasecmp(Models[i].name, model)==0) break;
+ }
+ if (Models[i].type==0xff) {
+ error ("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source());
+ return -1;
+ }
+ Model=i;
+ info ("%s: using model '%s'", Name, Models[Model].name);
+ } else {
+ error ("%s: no '%s.Model' entry from %s", Name, section, cfg_source());
+ return -1;
+ }
- error("%s : Unsupported display. Currently supported are : GU311.",Name);
- return -1;
+ DROWS = Models[Model].rows;
+ DCOLS = Models[Model].cols;
+ XRES = Models[Model].xres;
+ YRES = Models[Model].xres;
+ GOTO_COST = Models[Model].goto_cost;
+ Protocol = Models[Model].protocol;
+ /* display preferences */
+ CHARS = 0; /* number of user-defineable characters */
+ CHAR0 = 0; /* ASCII of first user-defineable char */
+
+
+
+ /* real worker functions */
+ drv_Noritake_clear = drv_GU311_clear;
+ if ( Models[Model].type == 0x01 ) {
+ drv_generic_text_real_write = drv_GU311_write;
+ } else {
+ error("%s: Unsupported display. Currently supported are : GU311.",Name);
+ return -1;
+ }
+ return drv_GU311_start(section);
}
@@ -269,18 +325,10 @@ int drv_Noritake_init (const char *section, const int quiet)
WIDGET_CLASS wc;
int ret;
- /* display preferences */
- XRES = 6; /* pixel width of one char */
- YRES = 8; /* pixel height of one char */
- CHARS = 0; /* number of user-defineable characters */
- CHAR0 = 0; /* ASCII of first user-defineable char */
-
- GOTO_COST = 6; /* number of bytes a goto command requires */
-
/* start display */
- if ((ret=drv_Noritake_start (section, quiet))!=0)
+ if ((ret=drv_Noritake_start (section))!=0)
return ret;
-
+
/* initialize generic text driver */
if ((ret=drv_generic_text_init(section, Name))!=0)
return ret;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 13:49:11 +0000