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SDL_fbevents.c

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1150 lines (1050 loc) · 28.7 KB
 
Apr 26, 2001
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/*
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SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
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This library 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
Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
slouken@libsdl.org
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*/
/* Handle the event stream, converting console events into SDL events */
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
/* For parsing /proc */
#include <dirent.h>
#include <ctype.h>
#include <linux/vt.h>
#include <linux/kd.h>
#include <linux/keyboard.h>
#include "SDL.h"
#include "SDL_mutex.h"
#include "SDL_sysevents.h"
#include "SDL_sysvideo.h"
#include "SDL_events_c.h"
#include "SDL_fbvideo.h"
#include "SDL_fbevents_c.h"
#include "SDL_fbkeys.h"
#include "SDL_fbelo.h"
#ifndef GPM_NODE_FIFO
#define GPM_NODE_FIFO "/dev/gpmdata"
#endif
/* The translation tables from a console scancode to a SDL keysym */
#define NUM_VGAKEYMAPS (1<<KG_CAPSSHIFT)
static Uint16 vga_keymap[NUM_VGAKEYMAPS][NR_KEYS];
static SDLKey keymap[128];
static Uint16 keymap_temp[128]; /* only used at startup */
static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym);
/* Ugh, we have to duplicate the kernel's keysym mapping code...
Oh, it's not so bad. :-)
FIXME: Add keyboard LED handling code
*/
static void FB_vgainitkeymaps(int fd)
{
struct kbentry entry;
int map, i;
/* Don't do anything if we are passed a closed keyboard */
if ( fd < 0 ) {
return;
}
/* Load all the keysym mappings */
for ( map=0; map<NUM_VGAKEYMAPS; ++map ) {
memset(vga_keymap[map], 0, NR_KEYS*sizeof(Uint16));
for ( i=0; i<NR_KEYS; ++i ) {
entry.kb_table = map;
entry.kb_index = i;
if ( ioctl(fd, KDGKBENT, &entry) == 0 ) {
/* fill keytemp. This replaces SDL_fbkeys.h */
if ( (map == 0) && (i<128) ) {
keymap_temp[i] = entry.kb_value;
}
/* The "Enter" key is a special case */
if ( entry.kb_value == K_ENTER ) {
entry.kb_value = K(KT_ASCII,13);
}
/* Handle numpad specially as well */
if ( KTYP(entry.kb_value) == KT_PAD ) {
switch ( entry.kb_value ) {
case K_P0:
case K_P1:
case K_P2:
case K_P3:
case K_P4:
case K_P5:
case K_P6:
case K_P7:
case K_P8:
case K_P9:
vga_keymap[map][i]=entry.kb_value;
vga_keymap[map][i]+= '0';
break;
case K_PPLUS:
vga_keymap[map][i]=K(KT_ASCII,'+');
break;
case K_PMINUS:
vga_keymap[map][i]=K(KT_ASCII,'-');
break;
case K_PSTAR:
vga_keymap[map][i]=K(KT_ASCII,'*');
break;
case K_PSLASH:
vga_keymap[map][i]=K(KT_ASCII,'/');
break;
case K_PENTER:
vga_keymap[map][i]=K(KT_ASCII,'\r');
break;
case K_PCOMMA:
vga_keymap[map][i]=K(KT_ASCII,',');
break;
case K_PDOT:
vga_keymap[map][i]=K(KT_ASCII,'.');
break;
default:
break;
}
}
/* Do the normal key translation */
if ( (KTYP(entry.kb_value) == KT_LATIN) ||
(KTYP(entry.kb_value) == KT_ASCII) ||
(KTYP(entry.kb_value) == KT_LETTER) ) {
vga_keymap[map][i] = entry.kb_value;
}
}
}
}
}
int FB_InGraphicsMode(_THIS)
{
return((keyboard_fd >= 0) && (saved_kbd_mode >= 0));
}
int FB_EnterGraphicsMode(_THIS)
{
struct termios keyboard_termios;
/* Set medium-raw keyboard mode */
if ( (keyboard_fd >= 0) && !FB_InGraphicsMode(this) ) {
/* Switch to the correct virtual terminal */
if ( current_vt > 0 ) {
struct vt_stat vtstate;
if ( ioctl(keyboard_fd, VT_GETSTATE, &vtstate) == 0 ) {
saved_vt = vtstate.v_active;
}
if ( ioctl(keyboard_fd, VT_ACTIVATE, current_vt) == 0 ) {
ioctl(keyboard_fd, VT_WAITACTIVE, current_vt);
}
}
/* Set the terminal input mode */
if ( tcgetattr(keyboard_fd, &saved_kbd_termios) < 0 ) {
SDL_SetError("Unable to get terminal attributes");
if ( keyboard_fd > 0 ) {
close(keyboard_fd);
}
keyboard_fd = -1;
return(-1);
}
if ( ioctl(keyboard_fd, KDGKBMODE, &saved_kbd_mode) < 0 ) {
SDL_SetError("Unable to get current keyboard mode");
if ( keyboard_fd > 0 ) {
close(keyboard_fd);
}
keyboard_fd = -1;
return(-1);
}
keyboard_termios = saved_kbd_termios;
keyboard_termios.c_lflag &= ~(ICANON | ECHO | ISIG);
keyboard_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
keyboard_termios.c_cc[VMIN] = 0;
keyboard_termios.c_cc[VTIME] = 0;
if (tcsetattr(keyboard_fd, TCSAFLUSH, &keyboard_termios) < 0) {
FB_CloseKeyboard(this);
SDL_SetError("Unable to set terminal attributes");
return(-1);
}
/* This will fail if we aren't root or this isn't our tty */
if ( ioctl(keyboard_fd, KDSKBMODE, K_MEDIUMRAW) < 0 ) {
FB_CloseKeyboard(this);
SDL_SetError("Unable to set keyboard in raw mode");
return(-1);
}
if ( ioctl(keyboard_fd, KDSETMODE, KD_GRAPHICS) < 0 ) {
FB_CloseKeyboard(this);
SDL_SetError("Unable to set keyboard in graphics mode");
return(-1);
}
}
return(keyboard_fd);
}
void FB_LeaveGraphicsMode(_THIS)
{
if ( FB_InGraphicsMode(this) ) {
ioctl(keyboard_fd, KDSETMODE, KD_TEXT);
ioctl(keyboard_fd, KDSKBMODE, saved_kbd_mode);
tcsetattr(keyboard_fd, TCSAFLUSH, &saved_kbd_termios);
saved_kbd_mode = -1;
/* Head back over to the original virtual terminal */
if ( saved_vt > 0 ) {
ioctl(keyboard_fd, VT_ACTIVATE, saved_vt);
}
}
}
void FB_CloseKeyboard(_THIS)
{
if ( keyboard_fd >= 0 ) {
FB_LeaveGraphicsMode(this);
if ( keyboard_fd > 0 ) {
close(keyboard_fd);
}
}
keyboard_fd = -1;
}
int FB_OpenKeyboard(_THIS)
{
/* Open only if not already opened */
if ( keyboard_fd < 0 ) {
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static const char * const tty0[] = { "/dev/tty0", "/dev/vc/0", NULL };
static const char * const vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL };
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int i, tty0_fd;
/* Try to query for a free virtual terminal */
tty0_fd = -1;
for ( i=0; tty0[i] && (tty0_fd < 0); ++i ) {
tty0_fd = open(tty0[i], O_WRONLY, 0);
}
if ( tty0_fd < 0 ) {
tty0_fd = dup(0); /* Maybe stdin is a VT? */
}
ioctl(tty0_fd, VT_OPENQRY, &current_vt);
close(tty0_fd);
if ( (geteuid() == 0) && (current_vt > 0) ) {
for ( i=0; vcs[i] && (keyboard_fd < 0); ++i ) {
char vtpath[12];
sprintf(vtpath, vcs[i], current_vt);
keyboard_fd = open(vtpath, O_RDWR, 0);
#ifdef DEBUG_KEYBOARD
fprintf(stderr, "vtpath = %s, fd = %d\n",
vtpath, keyboard_fd);
#endif /* DEBUG_KEYBOARD */
/* This needs to be our controlling tty
so that the kernel ioctl() calls work
*/
if ( keyboard_fd >= 0 ) {
tty0_fd = open("/dev/tty", O_RDWR, 0);
if ( tty0_fd >= 0 ) {
ioctl(tty0_fd, TIOCNOTTY, 0);
close(tty0_fd);
}
}
}
}
if ( keyboard_fd < 0 ) {
/* Last resort, maybe our tty is a usable VT */
current_vt = 0;
keyboard_fd = open("/dev/tty", O_RDWR);
}
#ifdef DEBUG_KEYBOARD
fprintf(stderr, "Current VT: %d\n", current_vt);
#endif
saved_kbd_mode = -1;
/* Make sure that our input is a console terminal */
{ int dummy;
if ( ioctl(keyboard_fd, KDGKBMODE, &dummy) < 0 ) {
close(keyboard_fd);
keyboard_fd = -1;
SDL_SetError("Unable to open a console terminal");
}
}
/* Set up keymap */
FB_vgainitkeymaps(keyboard_fd);
}
return(keyboard_fd);
}
static enum {
MOUSE_NONE = -1,
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MOUSE_MSC, /* Note: GPM uses the MSC protocol */
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MOUSE_PS2,
MOUSE_IMPS2,
MOUSE_MS,
MOUSE_BM,
MOUSE_ELO,
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MOUSE_TSLIB,
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NUM_MOUSE_DRVS
} mouse_drv = MOUSE_NONE;
void FB_CloseMouse(_THIS)
{
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#ifdef HAVE_TSLIB
if (ts_dev != NULL) {
ts_close(ts_dev);
ts_dev = NULL;
mouse_fd = -1;
}
#endif /* HAVE_TSLIB */
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if ( mouse_fd > 0 ) {
close(mouse_fd);
}
mouse_fd = -1;
}
/* Returns processes listed in /proc with the desired name */
static int find_pid(DIR *proc, const char *wanted_name)
{
struct dirent *entry;
int pid;
/* First scan proc for the gpm process */
pid = 0;
while ( (pid == 0) && ((entry=readdir(proc)) != NULL) ) {
if ( isdigit(entry->d_name[0]) ) {
FILE *status;
char path[PATH_MAX];
char name[PATH_MAX];
sprintf(path, "/proc/%s/status", entry->d_name);
status=fopen(path, "r");
if ( status ) {
name[0] = '\0';
fscanf(status, "Name: %s", name);
if ( strcmp(name, wanted_name) == 0 ) {
pid = atoi(entry->d_name);
}
fclose(status);
}
}
}
return pid;
}
/* Returns true if /dev/gpmdata is being written to by gpm */
static int gpm_available(void)
{
int available;
DIR *proc;
int pid;
int cmdline, len, arglen;
char path[PATH_MAX];
char args[PATH_MAX], *arg;
/* Don't bother looking if the fifo isn't there */
if ( access(GPM_NODE_FIFO, F_OK) < 0 ) {
return(0);
}
available = 0;
proc = opendir("/proc");
if ( proc ) {
while ( (pid=find_pid(proc, "gpm")) > 0 ) {
sprintf(path, "/proc/%d/cmdline", pid);
cmdline = open(path, O_RDONLY, 0);
if ( cmdline >= 0 ) {
len = read(cmdline, args, sizeof(args));
arg = args;
while ( len > 0 ) {
if ( strcmp(arg, "-R") == 0 ) {
available = 1;
}
arglen = strlen(arg)+1;
len -= arglen;
arg += arglen;
}
close(cmdline);
}
}
closedir(proc);
}
return available;
}
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/* rcg06112001 Set up IMPS/2 mode, if possible. This gives
* us access to the mousewheel, etc. Returns zero if
* writes to device failed, but you still need to query the
* device to see which mode it's actually in.
*/
static int set_imps2_mode(int fd)
{
/* If you wanted to control the mouse mode (and we do :) ) ...
Set IMPS/2 protocol:
{0xf3,200,0xf3,100,0xf3,80}
Reset mouse device:
{0xFF}
*/
Uint8 set_imps2[] = {0xf3, 200, 0xf3, 100, 0xf3, 80};
Uint8 reset = 0xff;
fd_set fdset;
struct timeval tv;
int retval = 0;
if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) {
if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) {
retval = 1;
}
}
/* Get rid of any chatter from the above */
FD_ZERO(&fdset);
FD_SET(fd, &fdset);
tv.tv_sec = 0;
tv.tv_usec = 0;
while ( select(fd+1, &fdset, 0, 0, &tv) > 0 ) {
char temp[32];
read(fd, temp, sizeof(temp));
}
return retval;
}
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/* Returns true if the mouse uses the IMPS/2 protocol */
static int detect_imps2(int fd)
{
int imps2;
imps2 = 0;
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if ( getenv("SDL_MOUSEDEV_IMPS2") ) {
imps2 = 1;
}
if ( ! imps2 ) {
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Uint8 query_ps2 = 0xF2;
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fd_set fdset;
struct timeval tv;
/* Get rid of any mouse motion noise */
FD_ZERO(&fdset);
FD_SET(fd, &fdset);
tv.tv_sec = 0;
tv.tv_usec = 0;
while ( select(fd+1, &fdset, 0, 0, &tv) > 0 ) {
char temp[32];
read(fd, temp, sizeof(temp));
}
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/* Query for the type of mouse protocol */
if ( write(fd, &query_ps2, sizeof (query_ps2)) == sizeof (query_ps2)) {
Uint8 ch = 0;
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/* Get the mouse protocol response */
do {
FD_ZERO(&fdset);
FD_SET(fd, &fdset);
tv.tv_sec = 1;
tv.tv_usec = 0;
if ( select(fd+1, &fdset, 0, 0, &tv) < 1 ) {
break;
}
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} while ( (read(fd, &ch, sizeof (ch)) == sizeof (ch)) &&
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((ch == 0xFA) || (ch == 0xAA)) );
/* Experimental values (Logitech wheelmouse) */
#ifdef DEBUG_MOUSE
fprintf(stderr, "Last mouse mode: 0x%x\n", ch);
#endif
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if ( (ch == 3) || (ch == 4) ) {
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imps2 = 1;
}
}
}
return imps2;
}
int FB_OpenMouse(_THIS)
{
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int i;
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const char *mousedev;
const char *mousedrv;
mousedrv = getenv("SDL_MOUSEDRV");
mousedev = getenv("SDL_MOUSEDEV");
mouse_fd = -1;
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#ifdef HAVE_TSLIB
if ((mousedrv != NULL) && (strcmp(mousedrv, "TSLIB") == 0)) {
if (mousedev == NULL) mousedev = getenv("TSLIB_TSDEVICE");
if (mousedev != NULL) {
ts_dev = ts_open(mousedev, 1);
if ((ts_dev != NULL) && (ts_config(ts_dev) >= 0)) {
#ifdef DEBUG_MOUSE
fprintf(stderr, "Using tslib touchscreen\n");
#endif
mouse_drv = MOUSE_TSLIB;
mouse_fd = ts_fd(ts_dev);
return mouse_fd;
}
}
mouse_drv = MOUSE_NONE;
return mouse_fd;
}
#endif /* HAVE_TSLIB */
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/* ELO TOUCHSCREEN SUPPORT */
if( (mousedrv != NULL) && (strcmp(mousedrv, "ELO") == 0) ) {
mouse_fd = open(mousedev, O_RDWR);
if ( mouse_fd >= 0 ) {
if(eloInitController(mouse_fd)) {
#ifdef DEBUG_MOUSE
fprintf(stderr, "Using ELO touchscreen\n");
#endif
mouse_drv = MOUSE_ELO;
}
}
else if ( mouse_fd < 0 ) {
mouse_drv = MOUSE_NONE;
}
return(mouse_fd);
}
/* STD MICE */
if ( mousedev == NULL ) {
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/* FIXME someday... allow multiple mice in this driver */
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static const char * const ps2mice[] = {
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"/dev/input/mice", "/dev/usbmouse", "/dev/psaux", NULL
};
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/* First try to use GPM in repeater mode */
if ( mouse_fd < 0 ) {
if ( gpm_available() ) {
mouse_fd = open(GPM_NODE_FIFO, O_RDONLY, 0);
if ( mouse_fd >= 0 ) {
#ifdef DEBUG_MOUSE
fprintf(stderr, "Using GPM mouse\n");
#endif
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mouse_drv = MOUSE_MSC;
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}
}
}
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/* Now try to use a modern PS/2 mouse */
for ( i=0; (mouse_fd < 0) && ps2mice[i]; ++i ) {
mouse_fd = open(ps2mice[i], O_RDWR, 0);
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if (mouse_fd < 0) {
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mouse_fd = open(ps2mice[i], O_RDONLY, 0);
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}
if (mouse_fd >= 0) {
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/* rcg06112001 Attempt to set IMPS/2 mode */
if ( i == 0 ) {
set_imps2_mode(mouse_fd);
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}
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if (detect_imps2(mouse_fd)) {
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#ifdef DEBUG_MOUSE
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fprintf(stderr, "Using IMPS2 mouse\n");
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#endif
mouse_drv = MOUSE_IMPS2;
} else {
#ifdef DEBUG_MOUSE
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fprintf(stderr, "Using PS2 mouse\n");
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#endif
mouse_drv = MOUSE_PS2;
}
}
}
/* Next try to use a PPC ADB port mouse */
if ( mouse_fd < 0 ) {
mouse_fd = open("/dev/adbmouse", O_RDONLY, 0);
if ( mouse_fd >= 0 ) {
#ifdef DEBUG_MOUSE
fprintf(stderr, "Using ADB mouse\n");
#endif
mouse_drv = MOUSE_BM;
}
}
}
/* Default to a serial Microsoft mouse */
if ( mouse_fd < 0 ) {
if ( mousedev == NULL ) {
mousedev = "/dev/mouse";
}
mouse_fd = open(mousedev, O_RDONLY, 0);
if ( mouse_fd >= 0 ) {
struct termios mouse_termios;
/* Set the sampling speed to 1200 baud */
tcgetattr(mouse_fd, &mouse_termios);
mouse_termios.c_iflag = IGNBRK | IGNPAR;
mouse_termios.c_oflag = 0;
mouse_termios.c_lflag = 0;
mouse_termios.c_line = 0;
mouse_termios.c_cc[VTIME] = 0;
mouse_termios.c_cc[VMIN] = 1;
mouse_termios.c_cflag = CREAD | CLOCAL | HUPCL;
mouse_termios.c_cflag |= CS8;
mouse_termios.c_cflag |= B1200;
tcsetattr(mouse_fd, TCSAFLUSH, &mouse_termios);
#ifdef DEBUG_MOUSE
fprintf(stderr, "Using Microsoft mouse on %s\n", mousedev);
#endif
mouse_drv = MOUSE_MS;
}
}
if ( mouse_fd < 0 ) {
mouse_drv = MOUSE_NONE;
}
return(mouse_fd);
}
static int posted = 0;
void FB_vgamousecallback(int button, int relative, int dx, int dy)
{
int button_1, button_3;
int button_state;
int state_changed;
int i;
Uint8 state;
if ( dx || dy ) {
posted += SDL_PrivateMouseMotion(0, relative, dx, dy);
}
/* Swap button 1 and 3 */
button_1 = (button & 0x04) >> 2;
button_3 = (button & 0x01) << 2;
button &= ~0x05;
button |= (button_1|button_3);
/* See what changed */
button_state = SDL_GetMouseState(NULL, NULL);
state_changed = button_state ^ button;
for ( i=0; i<8; ++i ) {
if ( state_changed & (1<<i) ) {
if ( button & (1<<i) ) {
state = SDL_PRESSED;
} else {
state = SDL_RELEASED;
}
posted += SDL_PrivateMouseButton(state, i+1, 0, 0);
}
}
}
Dec 12, 2005
Dec 12, 2005
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/* Handle input from tslib */
#ifdef HAVE_TSLIB
static void handle_tslib(_THIS)
{
struct ts_sample sample;
int button;
while (ts_read(ts_dev, &sample, 1) > 0) {
button = (sample.pressure > 0) ? 1 : 0;
button <<= 2; /* must report it as button 3 */
Feb 3, 2006
Feb 3, 2006
677
FB_vgamousecallback(button, 0, sample.x, sample.y);
Dec 12, 2005
Dec 12, 2005
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}
return;
}
#endif /* HAVE_TSLIB */
Jul 14, 2001
Jul 14, 2001
683
/* For now, use MSC, PS/2, and MS protocols
Apr 26, 2001
Apr 26, 2001
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Driver adapted from the SVGAlib mouse driver code (taken from gpm, etc.)
*/
static void handle_mouse(_THIS)
{
static int start = 0;
static unsigned char mousebuf[BUFSIZ];
static int relative = 1;
int i, nread;
int button = 0;
int dx = 0, dy = 0;
int packetsize = 0;
Apr 26, 2001
Apr 26, 2001
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697
int realx, realy;
Apr 26, 2001
Apr 26, 2001
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/* Figure out the mouse packet size */
switch (mouse_drv) {
case MOUSE_NONE:
/* Ack! */
read(mouse_fd, mousebuf, BUFSIZ);
return;
Jul 14, 2001
Jul 14, 2001
704
case MOUSE_MSC:
Apr 26, 2001
Apr 26, 2001
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packetsize = 5;
break;
case MOUSE_IMPS2:
packetsize = 4;
break;
case MOUSE_PS2:
case MOUSE_MS:
case MOUSE_BM:
packetsize = 3;
break;
case MOUSE_ELO:
Feb 3, 2006
Feb 3, 2006
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/* try to read the next packet */
if(eloReadPosition(this, mouse_fd, &dx, &dy, &button, &realx, &realy)) {
button = (button & 0x01) << 2;
FB_vgamousecallback(button, 0, dx, dy);
}
return; /* nothing left to do */
Dec 12, 2005
Dec 12, 2005
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case MOUSE_TSLIB:
#ifdef HAVE_TSLIB
handle_tslib(this);
#endif
return; /* nothing left to do */
Feb 3, 2006
Feb 3, 2006
727
default:
Apr 26, 2001
Apr 26, 2001
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/* Uh oh.. */
packetsize = 0;
break;
}
Apr 26, 2001
Apr 26, 2001
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/* Special handling for the quite sensitive ELO controller */
if (mouse_drv == MOUSE_ELO) {
}
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Apr 26, 2001
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/* Read as many packets as possible */
nread = read(mouse_fd, &mousebuf[start], BUFSIZ-start);
if ( nread < 0 ) {
return;
}
nread += start;
#ifdef DEBUG_MOUSE
fprintf(stderr, "Read %d bytes from mouse, start = %d\n", nread, start);
#endif
for ( i=0; i<(nread-(packetsize-1)); i += packetsize ) {
switch (mouse_drv) {
case MOUSE_NONE:
break;
Jul 14, 2001
Jul 14, 2001
751
752
case MOUSE_MSC:
/* MSC protocol has 0x80 in high byte */
Apr 26, 2001
Apr 26, 2001
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if ( (mousebuf[i] & 0xF8) != 0x80 ) {
/* Go to next byte */
i -= (packetsize-1);
continue;
}
/* Get current mouse state */
button = (~mousebuf[i]) & 0x07;
dx = (signed char)(mousebuf[i+1]) +
(signed char)(mousebuf[i+3]);
dy = -((signed char)(mousebuf[i+2]) +
(signed char)(mousebuf[i+4]));
break;
case MOUSE_PS2:
/* PS/2 protocol has nothing in high byte */
if ( (mousebuf[i] & 0xC0) != 0 ) {
/* Go to next byte */
i -= (packetsize-1);
continue;
}
/* Get current mouse state */
button = (mousebuf[i] & 0x04) >> 1 | /*Middle*/
(mousebuf[i] & 0x02) >> 1 | /*Right*/
(mousebuf[i] & 0x01) << 2; /*Left*/
dx = (mousebuf[i] & 0x10) ?
mousebuf[i+1] - 256 : mousebuf[i+1];
dy = (mousebuf[i] & 0x20) ?
-(mousebuf[i+2] - 256) : -mousebuf[i+2];
break;
case MOUSE_IMPS2:
/* Get current mouse state */
button = (mousebuf[i] & 0x04) >> 1 | /*Middle*/
(mousebuf[i] & 0x02) >> 1 | /*Right*/
(mousebuf[i] & 0x01) << 2 | /*Left*/
(mousebuf[i] & 0x40) >> 3 | /* 4 */
(mousebuf[i] & 0x80) >> 3; /* 5 */
dx = (mousebuf[i] & 0x10) ?
mousebuf[i+1] - 256 : mousebuf[i+1];
dy = (mousebuf[i] & 0x20) ?
-(mousebuf[i+2] - 256) : -mousebuf[i+2];
switch (mousebuf[i+3]&0x0F) {
case 0x0E: /* DX = +1 */
case 0x02: /* DX = -1 */
break;
case 0x0F: /* DY = +1 (map button 4) */
Jul 31, 2001
Jul 31, 2001
797
798
FB_vgamousecallback(button | (1<<3),
1, 0, 0);
Apr 26, 2001
Apr 26, 2001
799
800
break;
case 0x01: /* DY = -1 (map button 5) */
Jul 31, 2001
Jul 31, 2001
801
802
FB_vgamousecallback(button | (1<<4),
1, 0, 0);
Apr 26, 2001
Apr 26, 2001
803
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break;
}
break;
case MOUSE_MS:
/* Microsoft protocol has 0x40 in high byte */
if ( (mousebuf[i] & 0x40) != 0x40 ) {
/* Go to next byte */
i -= (packetsize-1);
continue;
}
/* Get current mouse state */
button = ((mousebuf[i] & 0x20) >> 3) |
((mousebuf[i] & 0x10) >> 4);
dx = (signed char)(((mousebuf[i] & 0x03) << 6) |
(mousebuf[i + 1] & 0x3F));
dy = (signed char)(((mousebuf[i] & 0x0C) << 4) |
(mousebuf[i + 2] & 0x3F));
break;
case MOUSE_BM:
/* BusMouse protocol has 0xF8 in high byte */
if ( (mousebuf[i] & 0xF8) != 0x80 ) {
/* Go to next byte */
i -= (packetsize-1);
continue;
}
/* Get current mouse state */
button = (~mousebuf[i]) & 0x07;
dx = (signed char)mousebuf[i+1];
dy = -(signed char)mousebuf[i+2];
break;
Feb 3, 2006
Feb 3, 2006
833
default:
Apr 26, 2001
Apr 26, 2001
834
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/* Uh oh.. */
dx = 0;
dy = 0;
break;
}
FB_vgamousecallback(button, relative, dx, dy);
}
if ( i < nread ) {
memcpy(mousebuf, &mousebuf[i], (nread-i));
start = (nread-i);
} else {
start = 0;
}
return;
}
Jul 14, 2001
Jul 14, 2001
850
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/* Handle switching to another VC, returns when our VC is back.
This isn't necessarily the best solution. For SDL 1.3 we need
a way of notifying the application when we lose access to the
video hardware and when we regain it.
*/
Apr 26, 2001
Apr 26, 2001
855
856
static void switch_vt(_THIS, unsigned short which)
{
Jan 10, 2006
Jan 10, 2006
857
struct fb_var_screeninfo vinfo;
Apr 26, 2001
Apr 26, 2001
858
struct vt_stat vtstate;
Jan 4, 2005
Jan 4, 2005
859
unsigned short v_active;
Apr 26, 2001
Apr 26, 2001
860
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862
863
864
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866
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868
869
SDL_Surface *screen;
__u16 saved_pal[3*256];
Uint32 screen_arealen;
Uint8 *screen_contents;
/* Figure out whether or not we're switching to a new console */
if ( (ioctl(keyboard_fd, VT_GETSTATE, &vtstate) < 0) ||
(which == vtstate.v_active) ) {
return;
}
Jan 4, 2005
Jan 4, 2005
870
v_active = vtstate.v_active;
Apr 26, 2001
Apr 26, 2001
871
872
873
/* Save the contents of the screen, and go to text mode */
SDL_mutexP(hw_lock);
Jul 14, 2001
Jul 14, 2001
874
wait_idle(this);
Apr 26, 2001
Apr 26, 2001
875
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877
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881
screen = SDL_VideoSurface;
screen_arealen = (screen->h*screen->pitch);
screen_contents = (Uint8 *)malloc(screen_arealen);
if ( screen_contents ) {
memcpy(screen_contents, screen->pixels, screen_arealen);
}
FB_SavePaletteTo(this, 256, saved_pal);
Jan 10, 2006
Jan 10, 2006
882
ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo);
Apr 26, 2001
Apr 26, 2001
883
884
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888
ioctl(keyboard_fd, KDSETMODE, KD_TEXT);
/* New console, switch to it */
if ( ioctl(keyboard_fd, VT_ACTIVATE, which) == 0 ) {
/* Wait for our console to be activated again */
ioctl(keyboard_fd, VT_WAITACTIVE, which);
Jan 4, 2005
Jan 4, 2005
889
while ( ioctl(keyboard_fd, VT_WAITACTIVE, v_active) < 0 ) {
Apr 26, 2001
Apr 26, 2001
890
891
892
893
894
895
896
897
898
899
if ( (errno != EINTR) && (errno != EAGAIN) ) {
/* Unknown VT error - cancel this */
break;
}
SDL_Delay(500);
}
}
/* Restore graphics mode and the contents of the screen */
ioctl(keyboard_fd, KDSETMODE, KD_GRAPHICS);
Jan 10, 2006
Jan 10, 2006
900
ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo);
Apr 26, 2001
Apr 26, 2001
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
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925
926
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929
930
931
932
933
934
935
936
937
938
939
940
FB_RestorePaletteFrom(this, 256, saved_pal);
if ( screen_contents ) {
memcpy(screen->pixels, screen_contents, screen_arealen);
free(screen_contents);
}
SDL_mutexV(hw_lock);
}
static void handle_keyboard(_THIS)
{
unsigned char keybuf[BUFSIZ];
int i, nread;
int pressed;
int scancode;
SDL_keysym keysym;
nread = read(keyboard_fd, keybuf, BUFSIZ);
for ( i=0; i<nread; ++i ) {
scancode = keybuf[i] & 0x7F;
if ( keybuf[i] & 0x80 ) {
pressed = SDL_RELEASED;
} else {
pressed = SDL_PRESSED;
}
TranslateKey(scancode, &keysym);
/* Handle Alt-FN for vt switch */
switch (keysym.sym) {
case SDLK_F1:
case SDLK_F2:
case SDLK_F3:
case SDLK_F4:
case SDLK_F5:
case SDLK_F6:
case SDLK_F7:
case SDLK_F8:
case SDLK_F9:
case SDLK_F10:
case SDLK_F11:
case SDLK_F12:
if ( SDL_GetModState() & KMOD_ALT ) {
Jul 14, 2001
Jul 14, 2001
941
942
943
if ( pressed ) {
switch_vt(this, (keysym.sym-SDLK_F1)+1);
}
Apr 26, 2001
Apr 26, 2001
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
break;
}
/* Fall through to normal processing */
default:
posted += SDL_PrivateKeyboard(pressed, &keysym);
break;
}
}
}
void FB_PumpEvents(_THIS)
{
fd_set fdset;
int max_fd;
static struct timeval zero;
do {
posted = 0;
FD_ZERO(&fdset);
max_fd = 0;
if ( keyboard_fd >= 0 ) {
FD_SET(keyboard_fd, &fdset);
if ( max_fd < keyboard_fd ) {
max_fd = keyboard_fd;
}
}
if ( mouse_fd >= 0 ) {
FD_SET(mouse_fd, &fdset);
if ( max_fd < mouse_fd ) {
max_fd = mouse_fd;
}
}
if ( select(max_fd+1, &fdset, NULL, NULL, &zero) > 0 ) {
if ( keyboard_fd >= 0 ) {
if ( FD_ISSET(keyboard_fd, &fdset) ) {
handle_keyboard(this);
}
}
if ( mouse_fd >= 0 ) {
if ( FD_ISSET(mouse_fd, &fdset) ) {
handle_mouse(this);
}
}
}
} while ( posted );
}
void FB_InitOSKeymap(_THIS)
{
int i;
/* Initialize the Linux key translation table */
/* First get the ascii keys and others not well handled */
for (i=0; i<SDL_TABLESIZE(keymap); ++i) {
switch(i) {