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/*
dev_touchscreen_skyeye.c - skyeye custom touchscreen simulation
Copyright (C) 2003 - 2007 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
*/
/*
* 03/19/2007 initial version, most from skyeye_mach_ep7312.c by ywc.
* Anthony Lee <don.anthony.lee@gmail.com>
*/
#include <stdint.h>
#include "skyeye_config.h"
#include "skyeye_device.h"
/* Pen_buffer: defined in skyeye_touchscreen.c */
extern unsigned int Pen_buffer[8];
struct ts_skyeye_io {
uint32_t ts_buffer[8];
};
static struct device_default_value skyeye_ts_def[] = {
/* name base size interrupt array */
#if 0
{"at91", 0xff00b000, 0x20, {17, 0, 0, 0}},
{"ep7312", 0x8000b000, 0x20, {6, 0, 0, 0}},
{"pxa_lubbock", 0x40000300, 0x20, {15, 0, 0, 0}},
{"pxa_mainstone", 0x40000300, 0x20, {15, 0, 0, 0}},
#endif
{NULL},
};
static void ts_skyeye_set_update_intr(struct device_desc *dev)
{
struct device_interrupt *intr = &dev->intr;
struct machine_config *mc = (struct machine_config*)dev->mach;
struct ts_skyeye_io *io = (struct ts_skyeye_io*)dev->data;
if (mc->mach_set_intr == NULL) return;
mc->mach_set_intr(intr->interrupts[0]);
if (mc->mach_update_intr != NULL) mc->mach_update_intr(mc);
}
static void ts_skyeye_fini(struct device_desc *dev)
{
struct ts_skyeye_io *io = (struct ts_skyeye_io*)dev->data;
free(dev->dev);
free(io);
}
static void ts_skyeye_reset(struct device_desc *dev)
{
struct touchscreen_device *ts_dev = (struct touchscreen_device*)dev->dev;
struct ts_skyeye_io *io = (struct ts_skyeye_io*) dev->data;
memset(io, 0, sizeof(struct ts_skyeye_io));
}
static void ts_skyeye_update(struct device_desc *dev)
{
struct device_interrupt *intr = &dev->intr;
struct touchscreen_device *ts_dev = (struct touchscreen_device*)dev->dev;
struct ts_skyeye_io *io = (struct ts_skyeye_io*)dev->data;
struct machine_config *mc = (struct machine_config*)dev->mach;
if (mc->mach_pending_intr == NULL) return;
if ((!mc->mach_pending_intr(intr->interrupts[0]))) { /* if now has no ts interrupt, then query */
if (Pen_buffer[6] == 1) { /* interrupt */
*(io->ts_buffer + 0) = Pen_buffer[0];
*(io->ts_buffer + 1) = Pen_buffer[1];
*(io->ts_buffer + 4) = Pen_buffer[4];
*(io->ts_buffer + 6) = Pen_buffer[6];
ts_skyeye_set_update_intr(dev); /* update interrupt, ts driver will clear it */
Pen_buffer[6] = 0;
}
}
}
static int ts_skyeye_read_word(struct device_desc *dev, uint32_t addr, uint32_t *data)
{
struct touchscreen_device *ts_dev = (struct touchscreen_device*) dev->dev;
struct ts_skyeye_io *io = (struct ts_skyeye_io*)dev->data;
int offset = (addr & ~3) - dev->base;
*data = io->ts_buffer[offset / 4];
return ADDR_HIT;
}
static int ts_skyeye_write_word(struct device_desc *dev, uint32_t addr, uint32_t data)
{
return ADDR_NOHIT;
}
static int ts_skyeye_setup(struct device_desc *dev)
{
struct ts_skyeye_io *io;
struct device_interrupt *intr = &dev->intr;
dev->fini = ts_skyeye_fini;
dev->reset = ts_skyeye_reset;
dev->update = ts_skyeye_update;
dev->read_word = ts_skyeye_read_word;
dev->write_word = ts_skyeye_write_word;
io = (struct ts_skyeye_io*)malloc(sizeof(struct ts_skyeye_io));
if (io == NULL) return 1;
dev->data = (void*)io;
ts_skyeye_reset(dev);
/* see if we need to set default values. */
set_device_default(dev, skyeye_ts_def);
return 0;
}
void touchscreen_skyeye_init(struct device_module_set *mod_set)
{
register_device_module("skyeye", mod_set, &ts_skyeye_setup);
}
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