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
29 #include <sys/types.h>
32 #ifdef HAVE_SYS_IOCTL_H
33 # include <sys/ioctl.h>
36 #include <linux/ppdev.h>
44 #include "wine/debug.h"
46 WINE_DEFAULT_DEBUG_CHANNEL(int);
48 typedef struct _PPDEVICESTRUCT{
49 int fd; /* NULL if device not available */
51 int userbase; /* where wine thinks the ports are*/
52 DWORD lastaccess; /* or NULL if release */
53 int timeout; /* time in second of inactivity to release the port*/
56 static PPDeviceStruct PPDeviceList[5];
57 static int PPDeviceNum=0;
59 static int IO_pp_sort(const void *p1,const void *p2)
61 return ((PPDeviceStruct*)p1)->userbase - ((PPDeviceStruct*)p2)->userbase;
66 * Read the ppdev entries from wine.conf, open the device and check
67 * for nescessary IOCTRL
68 * Report verbose about possible errors
75 int i,idx=0,fd,res,userbase,nports=0;
79 OBJECT_ATTRIBUTES attr;
82 static const WCHAR configW[] = {'M','a','c','h','i','n','e','\\',
83 'S','o','f','t','w','a','r','e','\\',
86 'C','o','n','f','i','g','\\',
87 'p','p','d','e','v',0};
91 attr.Length = sizeof(attr);
92 attr.RootDirectory = 0;
93 attr.ObjectName = &nameW;
95 attr.SecurityDescriptor = NULL;
96 attr.SecurityQualityOfService = NULL;
97 RtlInitUnicodeString( &nameW, configW );
99 if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) return 1;
103 DWORD total_size, len;
105 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)temp;
107 if (NtEnumerateValueKey( hkey, idx, KeyValueFullInformation,
108 temp, sizeof(temp), &total_size )) break;
109 if (info->Type != REG_SZ) break;
111 RtlUnicodeToMultiByteN( name, sizeof(name)-1, &len, info->Name, info->NameLength );
113 RtlUnicodeToMultiByteN( buffer, sizeof(buffer)-1, &len,
114 (WCHAR *)(temp + info->DataOffset), total_size-info->DataOffset );
120 FIXME("Make the PPDeviceList larger then 5 elements\n");
123 TRACE("Device '%s' at virtual userbase '%s'\n", buffer,name);
124 timeout = strchr(buffer,',');
127 fd=open(buffer,O_RDWR);
131 WARN("Configuration: No access to %s Cause: %s\n",buffer,strerror(lasterror));
132 WARN("Rejecting configuration item\n");
133 if (lasterror == ENODEV)
134 FIXME("Is the ppdev module loaded?\n");
137 userbase = strtol(name,(char **)NULL, 16);
138 if ( errno == ERANGE)
140 WARN("Configuration: Invalid base %s for %s\n",name,buffer);
141 WARN("Rejecting configuration item\n");
144 if (ioctl (fd,PPCLAIM,0))
146 ERR("PPCLAIM rejected %s\n",buffer);
147 ERR("Perhaps the device is already in use or non-existent\n");
152 for (i=0; i<= nports; i++)
154 if (PPDeviceList[i].userbase == userbase)
156 WARN("Configuration: %s uses the same virtual ports as %s\n",
157 buffer,PPDeviceList[0].devicename);
158 WARN("Configuration: Rejecting configuration item\n");
163 if (!userbase) continue;
165 /* Check for the minimum required IOCTLS */
166 if ((ioctl(fd,PPRDATA,&res))||
167 (ioctl(fd,PPRCONTROL,&res))||
168 (ioctl(fd,PPRCONTROL,&res)))
170 ERR("PPUSER IOCTL not available for parport device %s\n",buffer);
173 if (ioctl (fd,PPRELEASE,0))
175 ERR("PPRELEASE rejected %s\n",buffer);
176 ERR("Perhaps the device is already in use or non-existent\n");
179 PPDeviceList[nports].devicename = malloc(sizeof(buffer)+1);
180 if (!PPDeviceList[nports].devicename)
182 ERR("No (more)space for devicename\n");
185 strcpy(PPDeviceList[nports].devicename,buffer);
186 PPDeviceList[nports].fd = fd;
187 PPDeviceList[nports].userbase = userbase;
188 PPDeviceList[nports].lastaccess=GetTickCount();
191 PPDeviceList[nports].timeout = strtol(timeout,(char **)NULL, 10);
194 WARN("Configuration:Invalid timeout %s in configuration for %s, Setting to 0\n",
196 PPDeviceList[nports].timeout = 0;
200 PPDeviceList[nports].timeout = 0;
203 TRACE("found %d ports\n",nports);
208 /* sort in accending order for userbase for faster access*/
209 qsort (PPDeviceList,PPDeviceNum,sizeof(PPDeviceStruct),IO_pp_sort);
213 for (idx= 0;idx<PPDeviceNum; idx++)
214 TRACE("found device %s userbase %x fd %x timeout %d\n",
215 PPDeviceList[idx].devicename, PPDeviceList[idx].userbase,
216 PPDeviceList[idx].fd,PPDeviceList[idx].timeout);
218 register a timer callback perhaps every 30 second to release unused ports
219 Set lastaccess = 0 as indicator when port was released
226 * Do the actual IOCTL
227 * Return NULL on success
229 static int IO_pp_do_access(int idx,int ppctl, DWORD* res)
232 if (ioctl(PPDeviceList[idx].fd,PPCLAIM,0))
234 ERR("Can't reclaim device %s, PPUSER/PPDEV handling confused\n",
235 PPDeviceList[idx].devicename);
238 ret = ioctl(PPDeviceList[idx].fd,ppctl,res);
239 if (ioctl(PPDeviceList[idx].fd,PPRELEASE,0))
241 ERR("Can't release device %s, PPUSER/PPDEV handling confused\n",
242 PPDeviceList[idx].devicename);
251 * Check if we can satisfy the INP command with some of the configured PPDEV deviced
252 * Return NULL on success
254 int IO_pp_inp(int port, DWORD* res)
258 for (idx=0;idx<PPDeviceNum ;idx++)
260 j = port - PPDeviceList[idx].userbase;
265 return IO_pp_do_access(idx,PPRDATA,res);
267 return IO_pp_do_access(idx,PPRSTATUS,res);
269 return IO_pp_do_access(idx,PPRCONTROL,res);
275 FIXME("Port 0x%x not accessible for reading with ppdev\n",port);
276 FIXME("If this is causing problems, try direct port access\n");
287 * Check if we can satisfy the INP command with some of the configured PPDEV deviced
288 * Return NULL on success
290 BOOL IO_pp_outp(int port, DWORD* res)
294 for (idx=0;idx<PPDeviceNum ;idx++)
296 j = port - PPDeviceList[idx].userbase;
301 return IO_pp_do_access(idx,PPWDATA,res);
303 return IO_pp_do_access(idx,PPWCONTROL,res);
310 FIXME("Port %d not accessible for writing with ppdev\n",port);
311 FIXME("If this is causing problems, try direct port access\n");
321 #else /* HAVE_PPDEV */
324 char IO_pp_init(void)
329 int IO_pp_inp(int port, DWORD* res)
334 BOOL IO_pp_outp(int port, DWORD* res)
338 #endif /* HAVE_PPDEV */