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/*
dev_lcd_ep7312.c - skyeye EP7312 serial lcd controllor simulation
Copyright (C) 2003 - 2005 Skyeye Develop Group
for help please send mail to <skyeye-developer@lists.gro.clinux.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* 06/17/2005 initial verion for ep7312
*/
#include "armdefs.h"
#include "skyeye_device.h"
#include "dev_lcd_ep7312.h"
static struct device_default_value ep7312_lcd_def[] = {
/* name base size interrupt array */
{"ep7312", 0x800002c0, 0x4, {0, 0, 0, 0}},
{"at91", 0xffc002c0, 0x4, {0, 0, 0, 0}},
{NULL},
};
static void
ep7312_changed (struct device_desc *dev)
{
struct lcd_device *lcd_dev = (struct lcd_device *) dev->dev;
struct lcd_ep7312_io *io = (struct lcd_ep7312_io *) dev->data;
struct machine_config *mc = (struct machine_config *) dev->mach;
u32 lcdcon = io->lcdcon;
u32 vbufsiz = lcdcon & VBUFSIZ;
u32 linelen = (lcdcon & LINELEN) >> LINELEN_SHIFT;
lcd_dev->state = mc->state;
lcd_dev->lcd_close (lcd_dev);
lcd_dev->depth = 8; //test by ywc 2004-07-24
lcd_dev->width = (linelen + 1) * 16;
if (linelen == 0x3b) {
lcd_dev->depth = 12; //test by ywc 2004-10-14
lcd_dev->width = (linelen + 1) * 16 / 3;
}
lcd_dev->height =
(vbufsiz + 1) * 128 / (lcd_dev->depth) / (lcd_dev->width);
/* 2007-01-29 added by anthonylee */
lcd_dev->lcd_addr_begin = 0xc0000000;
lcd_dev->lcd_open (lcd_dev);
}
static void
lcd_ep7312_fini (struct device_desc *dev)
{
struct lcd_ep7312_io *io = (struct lcd_ep7312_io *) dev->data;
if (!dev->dev)
free (dev->dev);
if (!io)
free (io);
}
static void
lcd_ep7312_reset (struct device_desc *dev)
{
struct lcd_device *lcd_dev = (struct lcd_device *) dev->dev;
struct lcd_ep7312_io *io = (struct lcd_ep7312_io *) dev->data;
//io->lcdcon = GSEN|GSMD | 0x12bf | (0x27<<13);
io->lcdcon = GSEN | GSMD | 0x95f | (0x13 << 13);
/* 2007-01-29 removed by anthonylee */
#if 0
lcd_dev->lcd_addr_begin = 0xc0000000;
lcd_dev->lcd_addr_end = 0xc0000000;
#endif
}
static void
lcd_ep7312_update (struct device_desc *dev)
{
struct device_interrupt *intr = &dev->intr;
struct lcd_device *lcd_dev = (struct lcd_device *) dev->dev;
struct lcd_ep7312_io *io = (struct lcd_ep7312_io *) dev->data;
struct machine_config *mc = (struct machine_config *) dev->mach;
if(lcd_dev->lcd_update)
lcd_dev->lcd_update (lcd_dev);
}
int
lcd_ep7312_read_word (struct device_desc *dev, u32 addr, u32 * data)
{
struct lcd_device *lcd_dev = (struct lcd_device *) dev->dev;
struct lcd_ep7312_io *io = (struct lcd_ep7312_io *) dev->data;
int offset = (addr - dev->base);
int ret = ADDR_HIT;
//printf("%s:addr %x, %x\n", __FUNCTION__, addr, MACON);
*data = 0;
switch (offset) {
case 0:
*data = io->lcdcon;
break;
default:
break;
}
return ret;
}
int
lcd_ep7312_write_word (struct device_desc *dev, u32 addr, u32 data)
{
struct lcd_device *lcd_dev = (struct lcd_device *) dev->dev;
struct lcd_ep7312_io *io = (struct lcd_ep7312_io *) dev->data;
int offset = (addr - dev->base);
int ret = ADDR_HIT;
//printf("%s:mach:%x\n", __FUNCTION__, dev->mach);
switch (offset) {
case 0:
if (io->lcdcon != data) {
io->lcdcon = data;
ep7312_changed (dev);
}
break;
default:
ret = ADDR_NOHIT;
break;
}
return ret;
}
static int
lcd_ep7312_setup (struct device_desc *dev)
{
int i;
struct lcd_ep7312_io *io;
struct device_interrupt *intr = &dev->intr;
dev->fini = lcd_ep7312_fini;
dev->reset = lcd_ep7312_reset;
dev->update = lcd_ep7312_update;
dev->read_word = lcd_ep7312_read_word;
dev->write_word = lcd_ep7312_write_word;
io = (struct lcd_ep7312_io *) malloc (sizeof (struct lcd_ep7312_io));
memset (io, 0, sizeof (struct lcd_ep7312_io));
if (io == NULL)
return 1;
dev->data = (void *) io;
lcd_ep7312_reset (dev);
/* see if we need to set default values.
* */
set_device_default (dev, ep7312_lcd_def);
return 0;
}
void
lcd_ep7312_init (struct device_module_set *mod_set)
{
int i;
register_device_module ("ep7312", mod_set, &lcd_ep7312_setup);
}
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