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root/cebix/BasiliskII/src/MacOSX/sys_darwin.cpp
Revision: 1.14
Committed: 2008-02-04T01:02:58Z (16 years, 5 months ago) by nigel
Branch: MAIN
Changes since 1.13: +3 -3 lines
Log Message:
Remove a few 'warning: NULL used in arithmetic'

File Contents

# Content
1 /*
2 * $Id: sys_darwin.cpp,v 1.13 2008/01/01 09:40:32 gbeauche Exp $
3 *
4 * sys_darwin.cpp - Extra Darwin system dependant routines. Called by:
5 *
6 * sys_unix.cpp - System dependent routines, Unix implementation
7 *
8 * Based on Apple's CDROMSample.c and Evan Jones' cd-discid.c patches
9 *
10 * Basilisk II (C) 1997-2008 Christian Bauer
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 */
26
27 #import <errno.h>
28 #import <sys/param.h>
29 #import <IOKit/IOKitLib.h>
30 #import <IOKit/IOBSD.h>
31 #import <IOKit/serial/IOSerialKeys.h>
32 #import <IOKit/storage/IOMedia.h>
33 #import <IOKit/storage/IOMediaBSDClient.h>
34 #ifdef HAVE_IOKIT_STORAGE_IOBLOCKSTORAGEDEVICE_H
35 #import <IOKit/storage/IOBlockStorageDevice.h>
36 #endif
37 #import <IOKit/storage/IOCDMedia.h>
38 #import <IOKit/storage/IOCDMediaBSDClient.h>
39 #import <CoreFoundation/CoreFoundation.h>
40
41 #include "sysdeps.h"
42
43 #include "sys.h"
44 #include "prefs.h"
45
46 #define DEBUG 0
47 #import "debug.h"
48
49
50 // Global variables
51 static CFRunLoopRef media_poll_loop = NULL;
52 static bool media_thread_active = false;
53 static pthread_t media_thread;
54
55 // Prototypes
56 static void *media_poll_func(void *);
57
58 // From sys_unix.cpp
59 extern void SysMediaArrived(const char *path, int type);
60 extern void SysMediaRemoved(const char *path, int type);
61
62
63 /*
64 * Initialization
65 */
66
67 void DarwinSysInit(void)
68 {
69 media_thread_active = (pthread_create(&media_thread, NULL, media_poll_func, NULL) == 0);
70 D(bug("Media poll thread installed (%ld)\n", media_thread));
71 }
72
73
74 /*
75 * Deinitialization
76 */
77
78 void DarwinSysExit(void)
79 {
80 // Stop media poll thread
81 if (media_poll_loop)
82 CFRunLoopStop(media_poll_loop);
83 if (media_thread_active)
84 pthread_join(media_thread, NULL);
85 }
86
87
88 /*
89 * Get the BSD-style path of specified object
90 */
91
92 static kern_return_t get_device_path(io_object_t obj, char *path, size_t maxPathLength)
93 {
94 kern_return_t kernResult = KERN_FAILURE;
95 CFTypeRef pathAsCFString = IORegistryEntryCreateCFProperty(obj, CFSTR(kIOBSDNameKey),
96 kCFAllocatorDefault, 0);
97 if (pathAsCFString) {
98 strcpy(path, "/dev/");
99 size_t pathLength = strlen(path);
100 if (CFStringGetCString((const __CFString *)pathAsCFString,
101 path + pathLength,
102 maxPathLength - pathLength,
103 kCFStringEncodingASCII))
104 kernResult = KERN_SUCCESS;
105 CFRelease(pathAsCFString);
106 }
107 return kernResult;
108 }
109
110
111 /*
112 * kIOMatchedNotification handler
113 */
114
115 static void media_arrived(int type, io_iterator_t iterator)
116 {
117 io_object_t obj;
118 while ((obj = IOIteratorNext(iterator))) {
119 char path[MAXPATHLEN];
120 kern_return_t kernResult = get_device_path(obj, path, sizeof(path));
121 if (kernResult == KERN_SUCCESS) {
122 D(bug("Media Arrived: %s\n", path));
123 SysMediaArrived(path, type);
124 }
125 kernResult = IOObjectRelease(obj);
126 if (kernResult != KERN_SUCCESS) {
127 fprintf(stderr, "IOObjectRelease() returned %d\n", kernResult);
128 }
129 }
130 }
131
132
133 /*
134 * kIOTerminatedNotification handler
135 */
136
137 static void media_removed(int type, io_iterator_t iterator)
138 {
139 io_object_t obj;
140 while ((obj = IOIteratorNext(iterator))) {
141 char path[MAXPATHLEN];
142 kern_return_t kernResult = get_device_path(obj, path, sizeof(path));
143 if (kernResult == KERN_SUCCESS) {
144 D(bug("Media Removed: %s\n", path));
145 SysMediaRemoved(path, type);
146 }
147 kernResult = IOObjectRelease(obj);
148 if (kernResult != KERN_SUCCESS) {
149 fprintf(stderr, "IOObjectRelease() returned %d\n", kernResult);
150 }
151 }
152 }
153
154
155 /*
156 * Media poll function
157 */
158
159 static void *media_poll_func(void *)
160 {
161 media_poll_loop = CFRunLoopGetCurrent();
162
163 mach_port_t masterPort;
164 kern_return_t kernResult = IOMasterPort(bootstrap_port, &masterPort);
165 if (kernResult != KERN_SUCCESS) {
166 fprintf(stderr, "IOMasterPort() returned %d\n", kernResult);
167 return NULL;
168 }
169
170 CFMutableDictionaryRef matchingDictionary = IOServiceMatching(kIOCDMediaClass);
171 if (matchingDictionary == NULL) {
172 fprintf(stderr, "IOServiceMatching() returned a NULL dictionary\n");
173 return NULL;
174 }
175 matchingDictionary = (CFMutableDictionaryRef)CFRetain(matchingDictionary);
176
177 IONotificationPortRef notificationPort = IONotificationPortCreate(kIOMasterPortDefault);
178 CFRunLoopAddSource(media_poll_loop,
179 IONotificationPortGetRunLoopSource(notificationPort),
180 kCFRunLoopDefaultMode);
181
182 io_iterator_t mediaArrivedIterator;
183 kernResult = IOServiceAddMatchingNotification(notificationPort,
184 kIOMatchedNotification,
185 matchingDictionary,
186 (IOServiceMatchingCallback)media_arrived,
187 (void *)MEDIA_CD, &mediaArrivedIterator);
188 if (kernResult != KERN_SUCCESS)
189 fprintf(stderr, "IOServiceAddMatchingNotification() returned %d\n", kernResult);
190 media_arrived(MEDIA_CD, mediaArrivedIterator);
191
192 io_iterator_t mediaRemovedIterator;
193 kernResult = IOServiceAddMatchingNotification(notificationPort,
194 kIOTerminatedNotification,
195 matchingDictionary,
196 (IOServiceMatchingCallback)media_removed,
197 (void *)MEDIA_CD, &mediaRemovedIterator);
198 if (kernResult != KERN_SUCCESS)
199 fprintf(stderr, "IOServiceAddMatchingNotification() returned %d\n", kernResult);
200 media_removed(MEDIA_CD, mediaRemovedIterator);
201
202 CFRunLoopRun();
203 return NULL;
204 }
205
206
207 void DarwinAddFloppyPrefs(void)
208 {
209 mach_port_t masterPort; // The way to talk to the kernel
210 io_iterator_t allFloppies; // List of possible floppys
211 CFMutableDictionaryRef classesToMatch;
212 io_object_t nextFloppy;
213
214
215 if ( IOMasterPort(MACH_PORT_NULL, &masterPort) != KERN_SUCCESS )
216 bug("IOMasterPort failed. Won't be able to do anything with floppy drives\n");
217
218
219 // This selects all partitions of all disks
220 classesToMatch = IOServiceMatching(kIOMediaClass);
221 if ( classesToMatch )
222 {
223 // Skip drivers and partitions
224 CFDictionarySetValue(classesToMatch,
225 CFSTR(kIOMediaWholeKey), kCFBooleanTrue);
226
227 // Skip fixed drives (hard disks?)
228 CFDictionarySetValue(classesToMatch,
229 CFSTR(kIOMediaEjectableKey), kCFBooleanTrue);
230 }
231
232 if ( IOServiceGetMatchingServices(masterPort,
233 classesToMatch, &allFloppies) != KERN_SUCCESS )
234 {
235 D(bug("IOServiceGetMatchingServices failed. No removable drives found?\n"));
236 return;
237 }
238
239 // Iterate through each floppy
240 while ( nextFloppy = IOIteratorNext(allFloppies))
241 {
242 char bsdPath[MAXPATHLEN];
243 long size;
244 CFTypeRef sizeAsCFNumber =
245 IORegistryEntryCreateCFProperty(nextFloppy,
246 CFSTR(kIOMediaSizeKey),
247 kCFAllocatorDefault, 0);
248
249 if ( CFNumberGetValue((CFNumberRef)sizeAsCFNumber,
250 kCFNumberSInt32Type, &size) )
251 {
252 D(bug("Got size of %ld\n", size));
253 if ( size < 800 * 1024 || size > 1440 * 1024 )
254 {
255 D(puts("Device does not appear to be 800k or 1440k"));
256 continue;
257 }
258 }
259 else {
260 D(puts("Couldn't get kIOMediaSizeKey of device"));
261 continue; // if kIOMediaSizeKey is unavailable, we shouldn't use it anyway
262 }
263
264 if (get_device_path(nextFloppy, bsdPath, sizeof(bsdPath)) == KERN_SUCCESS) {
265 PrefsAddString("floppy", bsdPath);
266 } else {
267 D(bug("Could not get BSD device path for floppy\n"));
268 }
269 }
270
271 IOObjectRelease(nextFloppy);
272 IOObjectRelease(allFloppies);
273 }
274
275
276 void DarwinAddSerialPrefs(void)
277 {
278 mach_port_t masterPort; // The way to talk to the kernel
279 io_iterator_t allModems; // List of modems on the system
280 CFMutableDictionaryRef classesToMatch;
281 io_object_t nextModem;
282
283
284 if ( IOMasterPort(MACH_PORT_NULL, &masterPort) != KERN_SUCCESS )
285 bug("IOMasterPort failed. Won't be able to do anything with modems\n");
286
287
288 // Serial devices are instances of class IOSerialBSDClient
289 classesToMatch = IOServiceMatching(kIOSerialBSDServiceValue);
290 if ( classesToMatch )
291 {
292 // Narrow the search a little further. Each serial device object has
293 // a property with key kIOSerialBSDTypeKey and a value that is one of
294 // kIOSerialBSDAllTypes, kIOSerialBSDModemType, or kIOSerialBSDRS232Type.
295
296 CFDictionarySetValue(classesToMatch,
297 CFSTR(kIOSerialBSDTypeKey),
298 CFSTR(kIOSerialBSDModemType));
299
300 // This will find built-in and USB modems, but not serial modems.
301 }
302
303 if ( IOServiceGetMatchingServices(masterPort,
304 classesToMatch, &allModems) != KERN_SUCCESS )
305 {
306 D(bug("IOServiceGetMatchingServices failed. No modems found?\n"));
307 return;
308 }
309
310 // Iterate through each modem
311 while ( nextModem = IOIteratorNext(allModems))
312 {
313 char bsdPath[MAXPATHLEN];
314 CFTypeRef bsdPathAsCFString =
315 IORegistryEntryCreateCFProperty(nextModem,
316 CFSTR(kIOCalloutDeviceKey),
317 // kIODialinDeviceKey?
318 kCFAllocatorDefault, 0);
319 *bsdPath = '\0';
320 if ( bsdPathAsCFString )
321 {
322 if ( CFStringGetCString((const __CFString *)bsdPathAsCFString,
323 bsdPath, MAXPATHLEN,
324 kCFStringEncodingASCII) )
325 {
326 D(bug("Modem BSD path: %s\n", bsdPath));
327
328 // Note that if there are multiple modems, we only get the last
329 PrefsAddString("seriala", bsdPath);
330 }
331 else
332 D(bug("Could not get BSD device path for modem\n"));
333
334 CFRelease(bsdPathAsCFString);
335 }
336 else
337 D(puts("Cannot determine bsdPath for modem\n"));
338 }
339
340 IOObjectRelease(nextModem);
341 IOObjectRelease(allModems);
342
343
344 // Getting a printer device is a bit harder. Creating a fake device
345 // that emulates a simple printer (e.g. a HP DeskJet) is one possibility,
346 // but for now I will just create a fake, safe, device entry:
347
348 PrefsAddString("serialb", "/dev/null");
349 }
350
351
352 #ifdef MAC_OS_X_VERSION_10_2
353 /*
354 * Read CD-ROM TOC (binary MSF format, 804 bytes max.)
355 */
356
357 bool DarwinCDReadTOC(char *name, uint8 *toc)
358 {
359 char *c, *devname;
360 int fd;
361
362
363 // The open filehandle is something like /dev/disk5s1
364 // The DKIOCCDREADTOC ioctl needs the original cd file,
365 // so we strip the s1 suffix off it, and open the file just for this ioctl
366
367 devname = strdup(name);
368 if ( ! devname )
369 return false;
370
371 for ( c = devname; *c; ++c ) ; // Go to the end of the name,
372 --c, --c; // point to the 's1' on the end,
373 *c = '\0'; // and truncate the string
374
375 fd = open(devname, O_RDONLY);
376 if ( ! fd )
377 {
378 printf("Failed to open CD device %s for ioctl\n", devname);
379 free(devname);
380 return false;
381 }
382
383 D(bug("Opened %s for ioctl()\n", devname));
384
385 dk_cd_read_toc_t TOCrequest;
386
387 // Setup the ioctl request structure:
388
389 memset(&TOCrequest, 0, sizeof(TOCrequest));
390 TOCrequest.buffer = toc;
391 TOCrequest.bufferLength = 804;
392 TOCrequest.formatAsTime = kCDTrackInfoAddressTypeTrackNumber;
393
394 if ( ioctl(fd, DKIOCCDREADTOC, &TOCrequest) < 0 )
395 {
396 printf("ioctl(DKIOCCDREADTOC) failed: %s\n", strerror(errno));
397 close(fd);
398 free(devname);
399 return false;
400 }
401 if ( TOCrequest.bufferLength < sizeof(CDTOC) )
402 {
403 printf("ioctl(DKIOCCDREADTOC): only read %d bytes (a CDTOC is at least %d)\n",
404 TOCrequest.bufferLength, (int)sizeof(CDTOC));
405 close(fd);
406 free(devname);
407 return false;
408 }
409 D(bug("ioctl(DKIOCCDREADTOC) read %d bytes\n", TOCrequest.bufferLength));
410
411 close(fd);
412 free(devname);
413 return true;
414 }
415 #endif