2 * Parallel-port device support
4 * Copyright 2001 Uwe Bonnes
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <sys/types.h>
29 #include <sys/ioctl.h>
31 #include <linux/ppdev.h>
38 #include "wine/debug.h"
40 WINE_DEFAULT_DEBUG_CHANNEL(int);
42 typedef struct _PPDEVICESTRUCT
{
43 int fd
; /* NULL if device not available */
45 int userbase
; /* where wine thinks the ports are*/
46 DWORD lastaccess
; /* or NULL if release */
47 int timeout
; /* time in second of inactivity to release the port*/
50 static PPDeviceStruct PPDeviceList
[5];
51 static int PPDeviceNum
=0;
53 static int IO_pp_sort(const void *p1
,const void *p2
)
55 return ((PPDeviceStruct
*)p1
)->userbase
- ((PPDeviceStruct
*)p2
)->userbase
;
60 * Read the ppdev entries from wine.conf, open the device and check
61 * for nescessary IOCTRL
62 * Report verbose about possible errors
70 int i
,idx
=0,fd
,res
,userbase
,nports
=0;
76 if (RegOpenKeyA( HKEY_LOCAL_MACHINE
, "Software\\Wine\\Wine\\Config\\ppdev", &hkey
) != ERROR_SUCCESS
)
81 DWORD type
, count
= sizeof(buffer
), name_len
= sizeof(name
);
83 if (RegEnumValueA( hkey
, idx
, name
, &name_len
, NULL
, &type
, buffer
, &count
)!= ERROR_SUCCESS
)
89 FIXME("Make the PPDeviceList larger then 5 elements\n");
92 TRACE("Device '%s' at virtual userbase '%s'\n", buffer
,name
);
93 timeout
= strchr(buffer
,',');
96 fd
=open(buffer
,O_RDWR
);
100 WARN("Configuration: No access to %s Cause: %s\n",buffer
,strerror(lasterror
));
101 WARN("Rejecting configuration item\n");
102 if (lasterror
== ENODEV
)
103 FIXME("Is the ppdev module loaded?\n");
106 userbase
= strtol(name
,(char **)NULL
, 16);
107 if ( errno
== ERANGE
)
109 WARN("Configuration: Invalid base %s for %s\n",name
,buffer
);
110 WARN("Rejecting configuration item\n");
113 if (ioctl (fd
,PPCLAIM
,0))
115 ERR("PPCLAIM rejected %s\n",buffer
);
116 ERR("Perhaps the device is already in use or non-existant\n");
121 for (i
=0; i
<= nports
; i
++)
123 if (PPDeviceList
[i
].userbase
== userbase
)
125 WARN("Configuration: %s uses the same virtual ports as %s\n",
126 buffer
,PPDeviceList
[0].devicename
);
127 WARN("Configuration: Rejecting configuration item");
132 if (!userbase
) continue;
134 /* Check for the minimum required IOCTLS */
135 if ((ioctl(fd
,PPRDATA
,&res
))||
136 (ioctl(fd
,PPRCONTROL
,&res
))||
137 (ioctl(fd
,PPRCONTROL
,&res
)))
139 ERR("PPUSER IOCTL not available for parport device %s\n",temp
);
142 if (ioctl (fd
,PPRELEASE
,0))
144 ERR("PPRELEASE rejected %s\n",buffer
);
145 ERR("Perhaps the device is already in use or non-existant\n");
148 PPDeviceList
[nports
].devicename
= malloc(sizeof(buffer
)+1);
149 if (!PPDeviceList
[nports
].devicename
)
151 ERR("No (more)space for devicename\n");
154 strcpy(PPDeviceList
[nports
].devicename
,buffer
);
155 PPDeviceList
[nports
].fd
= fd
;
156 PPDeviceList
[nports
].userbase
= userbase
;
157 PPDeviceList
[nports
].lastaccess
=GetTickCount();
160 PPDeviceList
[nports
].timeout
= strtol(timeout
,(char **)NULL
, 10);
163 WARN("Configuration:Invalid timeout %s in configuration for %s, Setting to 0\n",
165 PPDeviceList
[nports
].timeout
= 0;
169 PPDeviceList
[nports
].timeout
= 0;
172 TRACE("found %d ports\n",nports
);
177 /* sort in accending order for userbase for faster access*/
178 qsort (PPDeviceList
,PPDeviceNum
,sizeof(PPDeviceStruct
),IO_pp_sort
);
182 for (idx
= 0;idx
<PPDeviceNum
; idx
++)
183 TRACE("found device %s userbase %x fd %x timeout %d\n",
184 PPDeviceList
[idx
].devicename
, PPDeviceList
[idx
].userbase
,
185 PPDeviceList
[idx
].fd
,PPDeviceList
[idx
].timeout
);
187 register a timer callback perhaps every 30 second to release unused ports
188 Set lastaccess = 0 as indicator when port was released
195 * Do the actual IOCTL
196 * Return NULL on success
198 static int IO_pp_do_access(int idx
,int ppctl
, DWORD
* res
)
201 if (ioctl(PPDeviceList
[idx
].fd
,PPCLAIM
,0))
203 ERR("Can't reclaim device %s, PPUSER/PPDEV handling confused\n",
204 PPDeviceList
[idx
].devicename
);
207 ret
= ioctl(PPDeviceList
[idx
].fd
,ppctl
,res
);
208 if (ioctl(PPDeviceList
[idx
].fd
,PPRELEASE
,0))
210 ERR("Can't release device %s, PPUSER/PPDEV handling confused\n",
211 PPDeviceList
[idx
].devicename
);
220 * Check if we can satisfy the INP command with some of the configured PPDEV deviced
221 * Return NULL on success
223 int IO_pp_inp(int port
, DWORD
* res
)
227 for (idx
=0;idx
<PPDeviceNum
;idx
++)
229 j
= port
- PPDeviceList
[idx
].userbase
;
234 return IO_pp_do_access(idx
,PPRDATA
,res
);
236 return IO_pp_do_access(idx
,PPRSTATUS
,res
);
238 return IO_pp_do_access(idx
,PPRCONTROL
,res
);
244 FIXME("Port 0x%x not accessible for reading with ppdev\n",port
);
245 FIXME("If this is causing problems, try direct port access\n");
256 * Check if we can satisfy the INP command with some of the configured PPDEV deviced
257 * Return NULL on success
259 BOOL
IO_pp_outp(int port
, DWORD
* res
)
263 for (idx
=0;idx
<PPDeviceNum
;idx
++)
265 j
= port
- PPDeviceList
[idx
].userbase
;
270 return IO_pp_do_access(idx
,PPWDATA
,res
);
272 return IO_pp_do_access(idx
,PPWCONTROL
,res
);
279 FIXME("Port %d not accessible for writing with ppdev\n",port
);
280 FIXME("If this is causing problems, try direct port access\n");
290 #else /* HAVE_PPDEV */
294 char IO_pp_init(void)
299 int IO_pp_inp(int port
, DWORD
* res
)
304 BOOL
IO_pp_outp(int port
, DWORD
* res
)
308 #endif /* HAVE_PPDEV */