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Fixed bug #888

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The OS/2 joystick code included an IBM header and was in violation of the license.
Ryan may put this back someday with a legal header. :)

--HG--
branch : SDL-1.2
This commit is contained in:
Sam Lantinga
2009-11-17 05:14:23 +00:00
parent 6c9d143fb3
commit 6b6579081f
2 changed files with 0 additions and 845 deletions
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668
src/joystick/os2/SDL_sysjoystick.c
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@@ -1,668 +0,0 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
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.
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.
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
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifdef SDL_JOYSTICK_OS2
/* OS/2 Joystick driver, contributed by Daniel Caetano */
#include <mem.h>
#define INCL_DOSDEVICES
#define INCL_DOSDEVIOCTL
#define INCL_DOSMEMMGR
#include <os2.h>
#include "joyos2.h"
#include "SDL_joystick.h"
#include "SDL_events.h"
#include "../SDL_sysjoystick.h"
#include "../SDL_joystick_c.h"
HFILE hJoyPort = NULL; /* Joystick GAME$ Port Address */
#define MAX_JOYSTICKS 2 /* Maximum of two joysticks */
#define MAX_AXES 4 /* each joystick can have up to 4 axes */
#define MAX_BUTTONS 8 /* 8 buttons */
#define MAX_HATS 0 /* 0 hats - OS/2 doesn't support it */
#define MAX_BALLS 0 /* and 0 balls - OS/2 doesn't support it */
#define AXIS_MIN -32768 /* minimum value for axes coordinate */
#define AXIS_MAX 32767 /* maximum value for axes coordinate */
#define MAX_JOYNAME 128 /* Joystick name may have 128 characters */
/* limit axes to 256 possible positions to filter out noise */
#define JOY_AXIS_THRESHOLD (((AXIS_MAX)-(AXIS_MIN))/256)
/* Calc Button Flag for buttons A to D */
#define JOY_BUTTON_FLAG(n) (1<<n)
/* Joystick data... hold information about detected devices */
typedef struct SYS_JoyData_s
{
Sint8 id; // Device ID
char szDeviceName[MAX_JOYNAME]; // Device Name
char axes; // Number of axes
char buttons; // Number of buttons
char hats; // Number of buttons
char balls; // Number of buttons
int axes_min[MAX_AXES]; // minimum callibration value for axes
int axes_med[MAX_AXES]; // medium callibration value for axes
int axes_max[MAX_AXES]; // maximum callibration value for axes
int buttoncalc[4]; // Used for buttons 5, 6, 7 and 8.
} SYS_JoyData_t, *SYS_JoyData_p;
SYS_JoyData_t SYS_JoyData[MAX_JOYSTICKS];
/* Structure used to convert data from OS/2 driver format to SDL format */
struct joystick_hwdata
{
Sint8 id;
struct _transaxes
{
int offset; /* Center Offset */
float scale1; /* Center to left/up Scale */
float scale2; /* Center to right/down Scale */
} transaxes[MAX_AXES];
};
/* Structure used to get values from Joystick Environment Variable */
struct _joycfg
{
char name[MAX_JOYNAME];
unsigned int axes;
unsigned int buttons;
unsigned int hats;
unsigned int balls;
};
/* OS/2 Implementation Function Prototypes */
APIRET joyPortOpen(HFILE * hGame);
void joyPortClose(HFILE * hGame);
int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars);
int joyGetEnv(struct _joycfg * joydata);
/************************************************************************/
/* Function to scan the system for joysticks. */
/* This function should set SDL_numjoysticks to the number of available */
/* joysticks. Joystick 0 should be the system default joystick. */
/* It should return 0, or -1 on an unrecoverable fatal error. */
/************************************************************************/
int SDL_SYS_JoystickInit(void)
{
APIRET rc; /* Generic OS/2 return code */
GAME_PORT_STRUCT stJoyStatus; /* Joystick Status Structure */
GAME_PARM_STRUCT stGameParms; /* Joystick Parameter Structure */
GAME_CALIB_STRUCT stGameCalib; /* Calibration Struct */
ULONG ulDataLen; /* Size of data */
ULONG ulLastTick; /* Tick Counter for timing operations */
Uint8 maxdevs; /* Maximum number of devices */
Uint8 numdevs; /* Number of present devices */
Uint8 maxbut; /* Maximum number of buttons... */
Uint8 i; /* Temporary Count Vars */
Uint8 ucNewJoystickMask; /* Mask for Joystick Detection */
struct _joycfg joycfg; /* Joy Configuration from envvar */
/* Get Max Number of Devices */
rc = joyPortOpen(&hJoyPort); /* Open GAME$ port */
if (rc != 0) return 0; /* Cannot open... report no joystick */
ulDataLen = sizeof(stGameParms);
rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_PARMS,
NULL, 0, NULL, &stGameParms, ulDataLen, &ulDataLen); /* Ask device info */
if (rc != 0)
{
joyPortClose(&hJoyPort);
SDL_SetError("Could not read joystick port.");
return -1;
}
if (stGameParms.useA != 0) maxdevs++;
if (stGameParms.useB != 0) maxdevs++;
if ( maxdevs > MAX_JOYSTICKS ) maxdevs = MAX_JOYSTICKS;
/* Defines min/max axes values (callibration) */
ulDataLen = sizeof(stGameCalib);
rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_CALIB,
NULL, 0, NULL, &stGameCalib, ulDataLen, &ulDataLen);
if (rc != 0)
{
joyPortClose(&hJoyPort);
SDL_SetError("Could not read callibration data.");
return -1;
}
/* Determine how many joysticks are active */
numdevs = 0; /* Points no device */
ucNewJoystickMask = 0x0F; /* read all 4 joystick axis */
ulDataLen = sizeof(ucNewJoystickMask);
rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_RESET,
&ucNewJoystickMask, ulDataLen, &ulDataLen, NULL, 0, NULL);
if (rc == 0)
{
ulDataLen = sizeof(stJoyStatus);
rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen);
if (rc != 0)
{
joyPortClose(&hJoyPort);
SDL_SetError("Could not call joystick port.");
return -1;
}
ulLastTick = stJoyStatus.ulJs_Ticks;
while (stJoyStatus.ulJs_Ticks == ulLastTick)
{
rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen);
}
if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) numdevs++;
if (((stJoyStatus.ucJs_JoyStickMask >> 2) & 0x03) > 0) numdevs++;
}
if (numdevs>maxdevs) numdevs=maxdevs;
/* If *any* joystick was detected... Let's configure SDL for them */
if (numdevs > 0)
{
/* Verify if it is a "user defined" joystick */
if (joyGetEnv(&joycfg))
{
GAME_3POS_STRUCT * axis[4];
axis[0] = &stGameCalib.Ax;
axis[1] = &stGameCalib.Ay;
axis[2] = &stGameCalib.Bx;
axis[3] = &stGameCalib.By;
/* Say it has one device only (user defined is always one device only) */
numdevs = 1;
/* Define Device 0 as... */
SYS_JoyData[0].id=0;
/* Define Number of Axes... up to 4 */
if (joycfg.axes>MAX_AXES) joycfg.axes = MAX_AXES;
SYS_JoyData[0].axes = joycfg.axes;
/* Define number of buttons... 8 if 2 axes, 6 if 3 axes and 4 if 4 axes */
maxbut = MAX_BUTTONS;
if (joycfg.axes>2) maxbut-=((joycfg.axes-2)<<1); /* MAX_BUTTONS - 2*(axes-2) */
if (joycfg.buttons > maxbut) joycfg.buttons = maxbut;
SYS_JoyData[0].buttons = joycfg.buttons;
/* Define number of hats */
if (joycfg.hats > MAX_HATS) joycfg.hats = MAX_HATS;
SYS_JoyData[0].hats = joycfg.hats;
/* Define number of balls */
if (joycfg.balls > MAX_BALLS) joycfg.balls = MAX_BALLS;
SYS_JoyData[0].balls = joycfg.balls;
/* Initialize Axes Callibration Values */
for (i=0; i<joycfg.axes; i++)
{
SYS_JoyData[0].axes_min[i] = axis[i]->lower;
SYS_JoyData[0].axes_med[i] = axis[i]->centre;
SYS_JoyData[0].axes_max[i] = axis[i]->upper;
}
/* Initialize Buttons 5 to 8 structures */
if (joycfg.buttons>=5) SYS_JoyData[0].buttoncalc[0]=((axis[2]->lower+axis[3]->centre)>>1);
if (joycfg.buttons>=6) SYS_JoyData[0].buttoncalc[1]=((axis[3]->lower+axis[3]->centre)>>1);
if (joycfg.buttons>=7) SYS_JoyData[0].buttoncalc[2]=((axis[2]->upper+axis[3]->centre)>>1);
if (joycfg.buttons>=8) SYS_JoyData[0].buttoncalc[3]=((axis[3]->upper+axis[3]->centre)>>1);
/* Intialize Joystick Name */
SDL_strlcpy (SYS_JoyData[0].szDeviceName,joycfg.name, SDL_arraysize(SYS_JoyData[0].szDeviceName));
}
/* Default Init ... autoconfig */
else
{
/* if two devices were detected... configure as Joy1 4 axis and Joy2 2 axis */
if (numdevs==2)
{
/* Define Device 0 as 4 axes, 4 buttons */
SYS_JoyData[0].id=0;
SYS_JoyData[0].axes = 4;
SYS_JoyData[0].buttons = 4;
SYS_JoyData[0].hats = 0;
SYS_JoyData[0].balls = 0;
SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
SYS_JoyData[0].axes_min[2] = stGameCalib.Bx.lower;
SYS_JoyData[0].axes_med[2] = stGameCalib.Bx.centre;
SYS_JoyData[0].axes_max[2] = stGameCalib.Bx.upper;
SYS_JoyData[0].axes_min[3] = stGameCalib.By.lower;
SYS_JoyData[0].axes_med[3] = stGameCalib.By.centre;
SYS_JoyData[0].axes_max[3] = stGameCalib.By.upper;
/* Define Device 1 as 2 axes, 2 buttons */
SYS_JoyData[1].id=1;
SYS_JoyData[1].axes = 2;
SYS_JoyData[1].buttons = 2;
SYS_JoyData[1].hats = 0;
SYS_JoyData[1].balls = 0;
SYS_JoyData[1].axes_min[0] = stGameCalib.Bx.lower;
SYS_JoyData[1].axes_med[0] = stGameCalib.Bx.centre;
SYS_JoyData[1].axes_max[0] = stGameCalib.Bx.upper;
SYS_JoyData[1].axes_min[1] = stGameCalib.By.lower;
SYS_JoyData[1].axes_med[1] = stGameCalib.By.centre;
SYS_JoyData[1].axes_max[1] = stGameCalib.By.upper;
}
/* One joystick only? */
else
{
/* If it is joystick A... */
if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0)
{
/* Define Device 0 as 2 axes, 4 buttons */
SYS_JoyData[0].id=0;
SYS_JoyData[0].axes = 2;
SYS_JoyData[0].buttons = 4;
SYS_JoyData[0].hats = 0;
SYS_JoyData[0].balls = 0;
SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
}
/* If not, it is joystick B */
else
{
/* Define Device 1 as 2 axes, 2 buttons */
SYS_JoyData[0].id=1;
SYS_JoyData[0].axes = 2;
SYS_JoyData[0].buttons = 2;
SYS_JoyData[0].hats = 0;
SYS_JoyData[0].balls = 0;
SYS_JoyData[0].axes_min[0] = stGameCalib.Bx.lower;
SYS_JoyData[0].axes_med[0] = stGameCalib.Bx.centre;
SYS_JoyData[0].axes_max[0] = stGameCalib.Bx.upper;
SYS_JoyData[0].axes_min[1] = stGameCalib.By.lower;
SYS_JoyData[0].axes_med[1] = stGameCalib.By.centre;
SYS_JoyData[0].axes_max[1] = stGameCalib.By.upper;
}
}
/* Hack to define Joystick Port Names */
if ( numdevs > maxdevs ) numdevs = maxdevs;
for (i=0; i<numdevs; i++)
SDL_snprintf (SYS_JoyData[i].szDeviceName, SDL_arraysize(SYS_JoyData[i].szDeviceName), "Default Joystick %c", 'A'+SYS_JoyData[i].id);
}
}
/* Return the number of devices found */
return(numdevs);
}
/***********************************************************/
/* Function to get the device-dependent name of a joystick */
/***********************************************************/
const char *SDL_SYS_JoystickName(int index)
{
/* No need to verify if device exists, already done in upper layer */
return(SYS_JoyData[index].szDeviceName);
}
/******************************************************************************/
/* Function to open a joystick for use. */
/* The joystick to open is specified by the index field of the joystick. */
/* This should fill the nbuttons and naxes fields of the joystick structure. */
/* It returns 0, or -1 if there is an error. */
/******************************************************************************/
int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
{
int index; /* Index shortcut for index in joystick structure */
int i; /* Generic Counter */
/* allocate memory for system specific hardware data */
joystick->hwdata = (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata));
if (joystick->hwdata == NULL)
{
SDL_OutOfMemory();
return(-1);
}
/* Reset Hardware Data */
SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata));
/* ShortCut Pointer */
index = joystick->index;
/* Define offsets and scales for all axes */
joystick->hwdata->id = SYS_JoyData[index].id;
for ( i = 0; i < MAX_AXES; ++i )
{
if ( (i<2) || i < SYS_JoyData[index].axes )
{
joystick->hwdata->transaxes[i].offset = ((AXIS_MAX + AXIS_MIN)>>1) - SYS_JoyData[index].axes_med[i];
//joystick->hwdata->transaxes[i].scale = (float)((AXIS_MAX - AXIS_MIN)/(SYS_JoyData[index].axes_max[i]-SYS_JoyData[index].axes_min[i]));
joystick->hwdata->transaxes[i].scale1 = (float)abs((AXIS_MIN/SYS_JoyData[index].axes_min[i]));
joystick->hwdata->transaxes[i].scale2 = (float)abs((AXIS_MAX/SYS_JoyData[index].axes_max[i]));
}
else
{
joystick->hwdata->transaxes[i].offset = 0;
//joystick->hwdata->transaxes[i].scale = 1.0; /* Just in case */
joystick->hwdata->transaxes[i].scale1 = 1.0; /* Just in case */
joystick->hwdata->transaxes[i].scale2 = 1.0; /* Just in case */
}
}
/* fill nbuttons, naxes, and nhats fields */
joystick->nbuttons = SYS_JoyData[index].buttons;
joystick->naxes = SYS_JoyData[index].axes;
/* joystick->nhats = SYS_JoyData[index].hats; */
joystick->nhats = 0; /* No support for hats at this time */
/* joystick->nballs = SYS_JoyData[index].balls; */
joystick->nballs = 0; /* No support for balls at this time */
return 0;
}
/***************************************************************************/
/* Function to update the state of a joystick - called as a device poll. */
/* This function shouldn't update the joystick structure directly, */
/* but instead should call SDL_PrivateJoystick*() to deliver events */
/* and update joystick device state. */
/***************************************************************************/
void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
{
APIRET rc; /* Generic OS/2 return code */
int index; /* index shortcurt to joystick index */
int i; /* Generic counter */
int normbut; /* Number of buttons reported by joystick */
int corr; /* Correction for button names */
Sint16 value, change; /* Values used to update axis values */
struct _transaxes *transaxes; /* Shortcut for Correction structure */
Uint32 pos[MAX_AXES]; /* Vector to inform the Axis status */
ULONG ulDataLen; /* Size of data */
GAME_STATUS_STRUCT stGameStatus; /* Joystick Status Structure */
ulDataLen = sizeof(stGameStatus);
rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_STATUS,
NULL, 0, NULL, &stGameStatus, ulDataLen, &ulDataLen);
if (rc != 0)
{
SDL_SetError("Could not read joystick status.");
return; /* Could not read data */
}
/* Shortcut pointer */
index = joystick->index;
/* joystick motion events */
if (SYS_JoyData[index].id == 0)
{
pos[0] = stGameStatus.curdata.A.x;
pos[1] = stGameStatus.curdata.A.y;
if (SYS_JoyData[index].axes >= 3) pos[2] = stGameStatus.curdata.B.x;
else pos[2]=0;
if (SYS_JoyData[index].axes >= 4) pos[3] = stGameStatus.curdata.B.y;
else pos[3]=0;
pos[4]=0; /* OS/2 basic drivers do not support more than 4 axes joysticks */
pos[5]=0;
}
else if (SYS_JoyData[index].id == 1)
{
pos[0] = stGameStatus.curdata.B.x;
pos[1] = stGameStatus.curdata.B.y;
pos[2]=0;
pos[3]=0;
pos[4]=0;
pos[5]=0;
}
/* Corrects the movements using the callibration */
transaxes = joystick->hwdata->transaxes;
for (i = 0; i < joystick->naxes; i++)
{
value = pos[i] + transaxes[i].offset;
if (value<0)
{
value*=transaxes[i].scale1;
if (value>0) value = AXIS_MIN;
}
else
{
value*=transaxes[i].scale2;
if (value<0) value = AXIS_MAX;
}
change = (value - joystick->axes[i]);
if ( (change < -JOY_AXIS_THRESHOLD) || (change > JOY_AXIS_THRESHOLD) )
{
SDL_PrivateJoystickAxis(joystick, (Uint8)i, (Sint16)value);
}
}
/* joystick button A to D events */
if (SYS_JoyData[index].id == 1) corr = 2;
else corr = 0;
normbut=4; /* Number of normal buttons */
if (joystick->nbuttons<normbut) normbut = joystick->nbuttons;
for ( i = corr; (i-corr) < normbut; ++i )
{
/*
Button A: 1110 0000
Button B: 1101 0000
Button C: 1011 0000
Button D: 0111 0000
*/
if ( (~stGameStatus.curdata.butMask)>>4 & JOY_BUTTON_FLAG(i) )
{
if ( ! joystick->buttons[i-corr] )
{
SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_PRESSED);
}
}
else
{
if ( joystick->buttons[i-corr] )
{
SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_RELEASED);
}
}
}
/* Joystick button E to H buttons */
/*
Button E: Axis 2 X Left
Button F: Axis 2 Y Up
Button G: Axis 2 X Right
Button H: Axis 2 Y Down
*/
if (joystick->nbuttons>=5)
{
if (stGameStatus.curdata.B.x < SYS_JoyData[index].buttoncalc[0]) SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_PRESSED);
else SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_RELEASED);
}
if (joystick->nbuttons>=6)
{
if (stGameStatus.curdata.B.y < SYS_JoyData[index].buttoncalc[1]) SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_PRESSED);
else SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_RELEASED);
}
if (joystick->nbuttons>=7)
{
if (stGameStatus.curdata.B.x > SYS_JoyData[index].buttoncalc[2]) SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_PRESSED);
else SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_RELEASED);
}
if (joystick->nbuttons>=8)
{
if (stGameStatus.curdata.B.y > SYS_JoyData[index].buttoncalc[3]) SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_PRESSED);
else SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_RELEASED);
}
/* joystick hat events */
/* Not Supported under OS/2 */
/* joystick ball events */
/* Not Supported under OS/2 */
}
/******************************************/
/* Function to close a joystick after use */
/******************************************/
void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
{
if (joystick->hwdata != NULL)
{
/* free system specific hardware data */
SDL_free(joystick->hwdata);
}
}
/********************************************************************/
/* Function to perform any system-specific joystick related cleanup */
/********************************************************************/
void SDL_SYS_JoystickQuit(void)
{
joyPortClose(&hJoyPort);
}
/************************/
/************************/
/* OS/2 Implementations */
/************************/
/************************/
/*****************************************/
/* Open Joystick Port, if not opened yet */
/*****************************************/
APIRET joyPortOpen(HFILE * hGame)
{
APIRET rc; /* Generic Return Code */
ULONG ulAction; /* ? */
ULONG ulVersion; /* Version of joystick driver */
ULONG ulDataLen; /* Size of version data */
/* Verifies if joyport is not already open... */
if (*hGame != NULL) return 0;
/* Open GAME$ for read */
rc = DosOpen((PSZ)GAMEPDDNAME, hGame, &ulAction, 0, FILE_READONLY,
FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL);
if (rc != 0)
{
SDL_SetError("Could not open Joystick Port.");
return -1;
}
/* Get Joystick Driver Version... must be 2.0 or higher */
ulVersion = 0;
ulDataLen = sizeof(ulVersion);
rc = DosDevIOCtl( *hGame, IOCTL_CAT_USER, GAME_GET_VERSION,
NULL, 0, NULL, &ulVersion, ulDataLen, &ulDataLen);
if (rc != 0)
{
joyPortClose(hGame);
SDL_SetError("Could not get Joystick Driver version.");
return -1;
}
if (ulVersion < GAME_VERSION)
{
joyPortClose(hGame);
SDL_SetError("Driver too old. At least IBM driver version 2.0 required.");
return -1;
}
return 0;
}
/****************************/
/* Close JoyPort, if opened */
/****************************/
void joyPortClose(HFILE * hGame)
{
if (*hGame != NULL) DosClose(*hGame);
*hGame = NULL;
}
/***************************/
/* Get SDL Joystick EnvVar */
/***************************/
int joyGetEnv(struct _joycfg * joydata)
{
char *joyenv; /* Pointer to tested character */
char tempnumber[5]; /* Temporary place to put numeric texts */
joyenv = SDL_getenv("SDL_OS2_JOYSTICK");
if (joyenv == NULL) return 0;
/* Joystick Environment is defined! */
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
/* If the string name starts with '... get if fully */
if (*joyenv=='\'') joyenv+=joyGetData(++joyenv,joydata->name,'\'',sizeof(joydata->name));
/* If not, get it until the next space */
else if (*joyenv=='\"') joyenv+=joyGetData(++joyenv,joydata->name,'\"',sizeof(joydata->name));
else joyenv+=joyGetData(joyenv,joydata->name,' ',sizeof(joydata->name));
/* Now get the number of axes */
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
joydata->axes = atoi(tempnumber);
/* Now get the number of buttons */
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
joydata->buttons = atoi(tempnumber);
/* Now get the number of hats */
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
joydata->hats = atoi(tempnumber);
/* Now get the number of balls */
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
joydata->balls = atoi(tempnumber);
return 1;
}
/************************************************************************/
/* Get a text from in the string starting in joyenv until it finds */
/* the stopchar or maxchars is reached. The result is placed in name. */
/************************************************************************/
int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars)
{
char *nameptr; /* Pointer to the selected character */
int chcnt=0; /* Count how many characters where copied */
nameptr=name;
while (*joyenv!=stopchar && *joyenv!=0)
{
if (nameptr<(name+(maxchars-1)))
{
*nameptr = *joyenv; /* Only copy if smaller than maximum */
nameptr++;
}
chcnt++;
joyenv++;
}
if (*joyenv==stopchar)
{
joyenv++; /* Jump stopchar */
chcnt++;
}
*nameptr = 0; /* Mark last byte */
return chcnt;
}
#endif /* SDL_JOYSTICK_OS2 */

177
src/joystick/os2/joyos2.h
View File

@@ -1,177 +0,0 @@
/*****************************************************************************/
/* */
/* COPYRIGHT Copyright (C) 1995 IBM Corporation */
/* */
/* The following IBM OS/2 source code is provided to you solely for */
/* the purpose of assisting you in your development of OS/2 device */
/* drivers. You may use this code in accordance with the IBM License */
/* Agreement provided in the IBM Device Driver Source Kit for OS/2. This */
/* Copyright statement may not be removed. */
/* */
/*****************************************************************************/
#ifndef JOYOS2_H
#define JOYOS2_H
/****** GAMEPORT.SYS joystick definitions, start *****************************/
#define GAME_VERSION 0x20 /* 2.0 First IBM version */
#define GAMEPDDNAME "GAME$ "
#define IOCTL_CAT_USER 0x80
#define GAME_PORT_GET 0x20 /* read GAMEPORT.SYS values */
#define GAME_PORT_RESET 0x60 /* reset joystick mask with given value */
#pragma pack(1) /* pack structure size is 1 byte */
typedef struct { /* GAMEPORT.SYS structure */
USHORT usJs_AxCnt; /* Joystick_A X position */
USHORT usJs_AyCnt; /* Joystick_A Y position */
USHORT usJs_BxCnt; /* Joystick_B X position */
USHORT usJs_ByCnt; /* Joystick_B Y position */
USHORT usJs_ButtonA1Cnt; /* button A1 press count */
USHORT usJs_ButtonA2Cnt; /* button A2 press count */
USHORT usJs_ButtonB1Cnt; /* button B1 press count */
USHORT usJs_ButtonB2Cnt; /* button B2 press count */
UCHAR ucJs_JoyStickMask; /* mask of connected joystick pots */
UCHAR ucJs_ButtonStatus; /* bits of switches down */
ULONG ulJs_Ticks; /* joystick clock ticks */
} GAME_PORT_STRUCT;
#pragma pack() /*reset to normal pack size */
/****** GAMEPORT.SYS joystick definitions, end *******************************/
/****************************************************************************/
#define GAME_GET_VERSION 0x01
#define GAME_GET_PARMS 0x02
#define GAME_SET_PARMS 0x03
#define GAME_GET_CALIB 0x04
#define GAME_SET_CALIB 0x05
#define GAME_GET_DIGSET 0x06
#define GAME_SET_DIGSET 0x07
#define GAME_GET_STATUS 0x10
#define GAME_GET_STATUS_BUTWAIT 0x11
#define GAME_GET_STATUS_SAMPWAIT 0x12
/****************************************************************************/
/****************************************************************************/
// bit masks for each axis
#define JOY_AX_BIT 0x01
#define JOY_AY_BIT 0x02
#define JOY_A_BITS (JOY_AX_BIT|JOY_AY_BIT)
#define JOY_BX_BIT 0x04
#define JOY_BY_BIT 0x08
#define JOY_B_BITS (JOY_BX_BIT|JOY_BY_BIT)
#define JOY_ALLPOS_BITS (JOY_A_BITS|JOY_B_BITS)
// bit masks for each button
#define JOY_BUT1_BIT 0x10
#define JOY_BUT2_BIT 0x20
#define JOY_BUT3_BIT 0x40
#define JOY_BUT4_BIT 0x80
#define JOY_ALL_BUTS (JOY_BUT1_BIT|JOY_BUT2_BIT|JOY_BUT3_BIT|JOY_BUT4_BIT)
/****************************************************************************/
/****************************************************************************/
// 1-D position struct used for each axis
typedef SHORT GAME_POS; /* some data formats require signed values */
// simple 2-D position for each joystick
typedef struct
{
GAME_POS x;
GAME_POS y;
}
GAME_2DPOS_STRUCT;
// struct defining the instantaneous state of both sticks and all buttons
typedef struct
{
GAME_2DPOS_STRUCT A;
GAME_2DPOS_STRUCT B;
USHORT butMask;
}
GAME_DATA_STRUCT;
// struct to be used for calibration and digital response on each axis
typedef struct
{
GAME_POS lower;
GAME_POS centre;
GAME_POS upper;
}
GAME_3POS_STRUCT;
/****************************************************************************/
/****************************************************************************/
// status struct returned to OS/2 applications:
// current data for all sticks as well as button counts since last read
typedef struct
{
GAME_DATA_STRUCT curdata;
USHORT b1cnt;
USHORT b2cnt;
USHORT b3cnt;
USHORT b4cnt;
}
GAME_STATUS_STRUCT;
/****************************************************************************/
/****************************************************************************/
/* in use bitmasks originating in 0.2b */
#define GAME_USE_BOTH_OLDMASK 0x01 /* for backward compat with bool */
#define GAME_USE_X_NEWMASK 0x02
#define GAME_USE_Y_NEWMASK 0x04
#define GAME_USE_X_EITHERMASK (GAME_USE_X_NEWMASK|GAME_USE_BOTH_OLDMASK)
#define GAME_USE_Y_EITHERMASK (GAME_USE_Y_NEWMASK|GAME_USE_BOTH_OLDMASK)
#define GAME_USE_BOTH_NEWMASK (GAME_USE_X_NEWMASK|GAME_USE_Y_NEWMASK)
/* only timed sampling implemented in version 1.0 */
#define GAME_MODE_TIMED 1 /* timed sampling */
#define GAME_MODE_REQUEST 2 /* request driven sampling */
/* only raw implemented in version 1.0 */
#define GAME_DATA_FORMAT_RAW 1 /* [l,c,r] */
#define GAME_DATA_FORMAT_SIGNED 2 /* [-l,0,+r] */
#define GAME_DATA_FORMAT_BINARY 3 /* {-1,0,+1} */
#define GAME_DATA_FORMAT_SCALED 4 /* [-10,+10] */
// parameters defining the operation of the driver
typedef struct
{
USHORT useA; /* new bitmasks: see above */
USHORT useB;
USHORT mode; /* see consts above */
USHORT format; /* see consts above */
USHORT sampDiv; /* samp freq = 32 / n */
USHORT scale; /* scaling factor */
USHORT res1; /* must be 0 */
USHORT res2; /* must be 0 */
}
GAME_PARM_STRUCT;
/****************************************************************************/
/****************************************************************************/
// calibration values for each axis:
// - upper limit on value to be considered in lower range
// - centre value
// - lower limit on value to be considered in upper range
typedef struct
{
GAME_3POS_STRUCT Ax;
GAME_3POS_STRUCT Ay;
GAME_3POS_STRUCT Bx;
GAME_3POS_STRUCT By;
}
GAME_CALIB_STRUCT;
/****************************************************************************/
/****************************************************************************/
// struct defining the digital response values for all axes
typedef struct
{
GAME_3POS_STRUCT Ax;
GAME_3POS_STRUCT Ay;
GAME_3POS_STRUCT Bx;
GAME_3POS_STRUCT By;
}
GAME_DIGSET_STRUCT;
/****************************************************************************/
#endif