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[lcd4linux @ 2005-05-04 07:18:44 by obconseil]

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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.

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@541 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
obconseil
2005-05-04 07:18:44 +00:00
parent af622e47c4
commit f6453b924e
1 changed files with 84 additions and 36 deletions
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120
drv_Noritake.c
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@@ -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;