/*** 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*/#include <stdio.h>#include <stdlib.h>#include <string.h>#include "common.h"#ifdef _PX255B_IAL#include <unistd.h>#include <sys/ioctl.h>#include <sys/poll.h>#include <linux/kd.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <sys/mman.h>#include <termios.h>//#include "misc.h"#include "ial.h"#include "px255b.h"#define _DEBUG_PX255B	0/* ------------------------------------------------------------------------- */#ifndef KEY_RELEASED#define KEY_RELEASED	0x80#endif#ifndef KEY_NUM#define KEY_NUM		0x7F#endif/* for data reading from /dev/tpanel */typedef struct {  short header;  short x;  short y;  short millisecs;} POS;static int ts = -1;static int kb_fd = -1;static unsigned char state [NR_KEYS];static unsigned char btn_state=0;static POS pos;/************************  Low Level Input Operations **********************/static int mouse_update(void){    return 1;}static void mouse_getxy(int *x, int* y){    *x = pos.x;    *y = pos.y;}static int mouse_getbutton(void){    return pos.header;}static int keyboard_update(void){    int status;    int key;    status = (btn_state & KEY_RELEASED)? 0: 1;    key = btn_state & KEY_NUM;    if (key == SCANCODE_CURSORLEFT)	key = SCANCODE_CURSORBLOCKLEFT;    else if (key == SCANCODE_CURSORRIGHT)	key = SCANCODE_CURSORBLOCKRIGHT;    else if (key == SCANCODE_CURSORUP)	key = SCANCODE_CURSORBLOCKUP;    else if (key == SCANCODE_CURSORDOWN)	key = SCANCODE_CURSORBLOCKDOWN;    state[key] = status;    return NR_KEYS;}static const char* keyboard_getstate(void){    return (char *)state;}#ifdef _LITE_VERSION static int wait_event (int which, int maxfd, fd_set *in, fd_set *out, fd_set *except,                struct timeval *timeout)#elsestatic int wait_event (int which, fd_set *in, fd_set *out, fd_set *except,                struct timeval *timeout)#endif{    fd_set rfds;    int    retvalue = 0;    if (!in) {        in = &rfds;        FD_ZERO (in);    }    if ((which & IAL_MOUSEEVENT) && ts >= 0) {        FD_SET (ts, in);#ifdef _LITE_VERSION        if (ts > maxfd) maxfd = ts;#endif    }    if ((which & IAL_KEYEVENT) && kb_fd >= 0){        FD_SET (kb_fd, in);#ifdef _LITE_VERSION        if(kb_fd > maxfd) maxfd = kb_fd;#endif    }#ifdef _LITE_VERSION    if ( select (maxfd + 1, in, out, except, timeout) < 0 )#else    if ( select (FD_SETSIZE, in, out, except, timeout) < 0 )#endif	return -1;    if (ts >= 0 && FD_ISSET (ts, in))    {        FD_CLR (ts, in);        if ( read (ts, &pos, sizeof (POS)) == sizeof(POS) ) {    	    pos.header = ( pos.header > 0 ? 4:0 );            retvalue |= IAL_MOUSEEVENT;        }        else {    	    fprintf (stderr, "read pos data error!\n");    	    return -1;        }    }    if (kb_fd >= 0 && FD_ISSET(kb_fd, in))    {        unsigned char scankey;        FD_CLR(kb_fd, in);        if (read(kb_fd, &scankey, sizeof(scankey)) == sizeof(scankey)) {#if _DEBUG_PX255B	    printf ("scankey = %d\n", scankey);#endif	    /* 224 where from ? */	    if (scankey == 224) {		return -1;	    }            btn_state = scankey;            retvalue |= IAL_KEYEVENT;        }        else {    	    fprintf (stderr, "read pos data error!\n");    	    return -1;        }    }    return retvalue;}BOOL InitPX255BInput (INPUT* input, const char* mdev, const char* mtype){    ts = open ("/dev/ts", O_RDONLY);    if (ts < 0) {        fprintf (stderr, "PX255B: Can not open touch screen!\n");        return FALSE;    }#if 0    kb_fd = open ("/dev/kb_7289", O_RDONLY);    if (kb_fd < 0 ) {        fprintf (stderr, "PX255B: Can not open key board!\n");        return FALSE;    }    if (ioctl(kb_fd, KDSKBMODE, K_MEDIUMRAW) < 0) {        fprintf (stderr, "PX255B: key board ioctl error!\n");        return FALSE;    }#endif    input->update_mouse = mouse_update;    input->get_mouse_xy = mouse_getxy;    input->set_mouse_xy = NULL;    input->get_mouse_button = mouse_getbutton;    input->set_mouse_range = NULL;    input->update_keyboard = keyboard_update;    input->get_keyboard_state = keyboard_getstate;    input->set_leds = NULL;    input->wait_event = wait_event;    pos.x = pos.y = pos.header = 0;        return TRUE;}void TermPX255BInput (void){    if (ts >= 0)        close(ts);    if (kb_fd >= 0)	close(kb_fd);}#endif /* _PX255B_IAL */