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>
33 #ifdef HAVE_SYS_IOCTL_H
34 # include <sys/ioctl.h>
36 #ifdef HAVE_LINUX_IOCTL_H
37 # include <linux/ioctl.h>
39 #include <linux/ppdev.h>
47 #include "wine/debug.h"
49 WINE_DEFAULT_DEBUG_CHANNEL(int);
51 typedef struct _PPDEVICESTRUCT{
52 int fd; /* NULL if device not available */
54 int userbase; /* where wine thinks the ports are */
55 DWORD lastaccess; /* or NULL if release */
56 int timeout; /* time in second of inactivity to release the port */
59 static PPDeviceStruct PPDeviceList[5];
60 static int PPDeviceNum=0;
62 static int IO_pp_sort(const void *p1,const void *p2)
64 return ((const PPDeviceStruct*)p1)->userbase - ((const PPDeviceStruct*)p2)->userbase;
69 * Read the ppdev entries from wine.conf, open the device and check
70 * for necessary IOCTRL
71 * Report verbose about possible errors
78 int i,idx=0,fd,res,userbase,nports=0;
82 OBJECT_ATTRIBUTES attr;
85 static const WCHAR configW[] = {'M','a','c','h','i','n','e','\\',
86 'S','o','f','t','w','a','r','e','\\',
89 'C','o','n','f','i','g','\\',
90 'p','p','d','e','v',0};
94 attr.Length = sizeof(attr);
95 attr.RootDirectory = 0;
96 attr.ObjectName = &nameW;
98 attr.SecurityDescriptor = NULL;
99 attr.SecurityQualityOfService = NULL;
100 RtlInitUnicodeString( &nameW, configW );
102 if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) return 1;
106 DWORD total_size, len;
108 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)temp;
110 if (NtEnumerateValueKey( hkey, idx, KeyValueFullInformation,
111 temp, sizeof(temp), &total_size )) break;
112 if (info->Type != REG_SZ) break;
114 RtlUnicodeToMultiByteN( name, sizeof(name)-1, &len, info->Name, info->NameLength );
116 RtlUnicodeToMultiByteN( buffer, sizeof(buffer)-1, &len,
117 (WCHAR *)(temp + info->DataOffset), total_size-info->DataOffset );
123 FIXME("Make the PPDeviceList larger than 5 elements\n");
126 TRACE("Device '%s' at virtual userbase '%s'\n", buffer,name);
127 timeout = strchr(buffer,',');
130 fd=open(buffer,O_RDWR);
134 WARN("Configuration: No access to %s Cause: %s\n",buffer,strerror(lasterror));
135 WARN("Rejecting configuration item\n");
136 if (lasterror == ENODEV)
137 ERR("Is the ppdev module loaded?\n");
140 userbase = strtol(name,(char **)NULL, 16);
141 if ( errno == ERANGE)
143 WARN("Configuration: Invalid base %s for %s\n",name,buffer);
144 WARN("Rejecting configuration item\n");
147 if (ioctl (fd,PPCLAIM,0))
149 ERR("PPCLAIM rejected %s\n",buffer);
150 ERR("Perhaps the device is already in use or non-existent\n");
155 for (i=0; i<= nports; i++)
157 if (PPDeviceList[i].userbase == userbase)
159 WARN("Configuration: %s uses the same virtual ports as %s\n",
160 buffer,PPDeviceList[0].devicename);
161 WARN("Configuration: Rejecting configuration item\n");
166 if (!userbase) continue;
168 /* Check for the minimum required IOCTLS */
169 if ((ioctl(fd,PPRDATA,&res))||
170 (ioctl(fd,PPRCONTROL,&res))||
171 (ioctl(fd,PPRCONTROL,&res)))
173 ERR("PPUSER IOCTL not available for parport device %s\n",buffer);
176 if (ioctl (fd,PPRELEASE,0))
178 ERR("PPRELEASE rejected %s\n",buffer);
179 ERR("Perhaps the device is already in use or non-existent\n");
182 PPDeviceList[nports].devicename = malloc(sizeof(buffer)+1);
183 if (!PPDeviceList[nports].devicename)
185 ERR("No (more) space for devicename\n");
188 strcpy(PPDeviceList[nports].devicename,buffer);
189 PPDeviceList[nports].fd = fd;
190 PPDeviceList[nports].userbase = userbase;
191 PPDeviceList[nports].lastaccess=GetTickCount();
194 PPDeviceList[nports].timeout = strtol(timeout,(char **)NULL, 10);
197 WARN("Configuration: Invalid timeout %s in configuration for %s, Setting to 0\n",
199 PPDeviceList[nports].timeout = 0;
203 PPDeviceList[nports].timeout = 0;
206 TRACE("found %d ports\n",nports);
211 /* sort in ascending order for userbase for faster access */
212 qsort (PPDeviceList,PPDeviceNum,sizeof(PPDeviceStruct),IO_pp_sort);
216 for (idx= 0;idx<PPDeviceNum; idx++)
217 TRACE("found device %s userbase %x fd %x timeout %d\n",
218 PPDeviceList[idx].devicename, PPDeviceList[idx].userbase,
219 PPDeviceList[idx].fd,PPDeviceList[idx].timeout);
221 register a timer callback perhaps every 30 seconds to release unused ports
222 Set lastaccess = 0 as indicator when port was released
229 * Do the actual IOCTL
230 * Return NULL on success
232 static int IO_pp_do_access(int idx,int ppctl, DWORD* res)
235 if (ioctl(PPDeviceList[idx].fd,PPCLAIM,0))
237 ERR("Can't reclaim device %s, PPUSER/PPDEV handling confused\n",
238 PPDeviceList[idx].devicename);
241 ret = ioctl(PPDeviceList[idx].fd,ppctl,res);
242 if (ioctl(PPDeviceList[idx].fd,PPRELEASE,0))
244 ERR("Can't release device %s, PPUSER/PPDEV handling confused\n",
245 PPDeviceList[idx].devicename);
254 * Check if we can satisfy the INP command with some of the configured PPDEV deviced
255 * Return NULL on success
257 int IO_pp_inp(int port, DWORD* res)
261 for (idx=0;idx<PPDeviceNum ;idx++)
263 j = port - PPDeviceList[idx].userbase;
268 return IO_pp_do_access(idx,PPRDATA,res);
270 return IO_pp_do_access(idx,PPRSTATUS,res);
272 return IO_pp_do_access(idx,PPRCONTROL,res);
278 FIXME("Port 0x%x not accessible for reading with ppdev\n",port);
279 FIXME("If this is causing problems, try direct port access\n");
290 * Check if we can satisfy the INP command with some of the configured PPDEV deviced
291 * Return NULL on success
293 BOOL IO_pp_outp(int port, DWORD* res)
297 for (idx=0;idx<PPDeviceNum ;idx++)
299 j = port - PPDeviceList[idx].userbase;
304 return IO_pp_do_access(idx,PPWDATA,res);
307 /* We can't switch port direction via PPWCONTROL,
308 so do it via PPDATADIR
310 DWORD mode = *res & 0x20;
311 IO_pp_do_access(idx,PPDATADIR,&mode);
312 mode = (*res & ~0x20);
313 return IO_pp_do_access(idx,PPWCONTROL,&mode);
322 FIXME("Port %d not accessible for writing with ppdev\n",port);
323 FIXME("If this is causing problems, try direct port access\n");
333 #else /* HAVE_PPDEV */
336 char IO_pp_init(void)
341 int IO_pp_inp(int port, DWORD* res)
346 BOOL IO_pp_outp(int port, DWORD* res)
350 #endif /* HAVE_PPDEV */