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root/cebix/BasiliskII/src/Unix/sys_unix.cpp

Comparing BasiliskII/src/Unix/sys_unix.cpp (file contents):
Revision 1.18 by cebix, 2002-04-28T14:06:17Z vs.
Revision 1.28 by cebix, 2005-11-24T17:23:43Z

#	Line 1 | Line 1
1		/*
2		*  sys_unix.cpp - System dependent routines, Unix implementation
3		*
4	<	*  Basilisk II (C) 1997-2002 Christian Bauer
4	>	*  Basilisk II (C) 1997-2005 Christian Bauer
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 24 | Line 24
24		#include <sys/stat.h>
25		#include <errno.h>
26
27	+	#ifdef HAVE_AVAILABILITYMACROS_H
28	+	#include <AvailabilityMacros.h>
29	+	#endif
30	+
31		#ifdef __linux__
32		#include <sys/mount.h>
33		#include <linux/cdrom.h>
34		#include <linux/fd.h>
35		#include <linux/major.h>
36		#include <linux/kdev_t.h>
33	–	#include <linux/unistd.h>
37		#include <dirent.h>
35	–
36	–	#ifdef __NR__llseek
37	–	_syscall5(int, _llseek, unsigned int, fd, unsigned long, hi, unsigned long, lo, loff_t *, res, unsigned int, wh);
38	–	#else
39	–	static int _llseek(unsigned int fd, unsigned long hi, unsigned long lo, loff_t *res, unsigned int wh)
40	–	{
41	–	if (hi)
42	–	return -1;
43	–	*res = lseek(fd, lo, wh);
44	–	if (*res == -1)
45	–	return -1;
46	–	return 0;
47	–	}
48	–	#endif
38		#endif
39
40		#if defined(__FreeBSD__) || defined(__NetBSD__)
#	Line 64 | Line 53 | static int _llseek(unsigned int fd, unsi
53
54		// File handles are pointers to these structures
55		struct file_handle {
56	<	char *name;             // Copy of device/file name
56	>	char *name;                     // Copy of device/file name
57		int fd;
58		bool is_file;           // Flag: plain file or /dev/something?
59		bool is_floppy;         // Flag: floppy device
#	Line 77 | Line 66 | struct file_handle {
66		int cdrom_cap;          // CD-ROM capability flags (only valid if is_cdrom is true)
67		#elif defined(__FreeBSD__)
68		struct ioc_capability cdrom_cap;
69	+	#elif defined(__APPLE__) && defined(__MACH__)
70	+	char    *ioctl_name;    // For CDs on OS X - a device for special ioctls
71	+	int             ioctl_fd;
72		#endif
73		};
74
#	Line 121 | Line 113 | void SysMountFirstFloppy(void)
113		void SysAddFloppyPrefs(void)
114		{
115		#if defined(__linux__)
116	<	if (access("/dev/.devfsd", F_OK) < 0) {
117	<	PrefsAddString("floppy", "/dev/fd0u1440");
118	<	PrefsAddString("floppy", "/dev/fd1u1440");
119	<	} else {
120	<	DIR *fd_dir = opendir("/dev/floppy");
121	<	if (fd_dir) {
122	<	struct dirent *floppy_dev;
123	<	while ((floppy_dev = readdir(fd_dir)) != NULL) {
132	<	if (strstr(floppy_dev->d_name, "u1440") != NULL) {
133	<	char fd_dev[20];
134	<	sprintf(fd_dev, "/dev/floppy/%s", floppy_dev->d_name);
135	<	PrefsAddString("floppy", fd_dev);
136	<	}
116	>	DIR *fd_dir = opendir("/dev/floppy");
117	>	if (fd_dir) {
118	>	struct dirent *floppy_dev;
119	>	while ((floppy_dev = readdir(fd_dir)) != NULL) {
120	>	if (strstr(floppy_dev->d_name, "u1440") != NULL) {
121	>	char fd_dev[20];
122	>	sprintf(fd_dev, "/dev/floppy/%s", floppy_dev->d_name);
123	>	PrefsAddString("floppy", fd_dev);
124		}
138	–	closedir(fd_dir);
125		}
126	+	closedir(fd_dir);
127	+	} else {
128	+	PrefsAddString("floppy", "/dev/fd0");
129	+	PrefsAddString("floppy", "/dev/fd1");
130		}
131		#elif defined(__NetBSD__)
132		PrefsAddString("floppy", "/dev/fd0a");
133		PrefsAddString("floppy", "/dev/fd1a");
134	+	#elif defined(__APPLE__) && defined(__MACH__)
135	+	#if defined(AQUA) || defined(HAVE_FRAMEWORK_COREFOUNDATION)
136	+	extern  void DarwinAddFloppyPrefs(void);
137	+
138	+	DarwinAddFloppyPrefs();
139	+	#else
140	+	// Until I can convince the other guys that my Darwin code is useful,
141	+	// we just add something safe (a non-existant device):
142	+	PrefsAddString("floppy", "/dev/null");
143	+	#endif
144		#else
145		PrefsAddString("floppy", "/dev/fd0");
146		PrefsAddString("floppy", "/dev/fd1");
#	Line 151 | Line 151 | void SysAddFloppyPrefs(void)
151		/*
152		*  This gets called when no "disk" prefs items are found
153		*  It scans for available HFS volumes and adds appropriate prefs items
154	+	*      On OS X, we could do the same, but on an OS X machine I think it is
155	+	*      very unlikely that any mounted volumes would contain a system which
156	+	*      is old enough to boot a 68k Mac, so we just do nothing here for now.
157		*/
158
159		void SysAddDiskPrefs(void)
#	Line 208 | Line 211 | void SysAddCDROMPrefs(void)
211		closedir(cd_dir);
212		}
213		}
214	+	#elif defined(__APPLE__) && defined(__MACH__)
215	+	#if defined(AQUA) || defined(HAVE_FRAMEWORK_COREFOUNDATION)
216	+	extern  void DarwinAddCDROMPrefs(void);
217	+
218	+	DarwinAddCDROMPrefs();
219	+	#else
220	+	// Until I can convince the other guys that my Darwin code is useful,
221	+	// we just do nothing (it is safe to have no cdrom device)
222	+	#endif
223		#elif defined(__FreeBSD__) || defined(__NetBSD__)
224		PrefsAddString("cdrom", "/dev/cd0c");
225		#endif
#	Line 234 | Line 246 | void SysAddSerialPrefs(void)
246		#elif defined(__NetBSD__)
247		PrefsAddString("seriala", "/dev/tty00");
248		PrefsAddString("serialb", "/dev/tty01");
249	+	#elif defined(__APPLE__) && defined(__MACH__)
250	+	#if defined(AQUA) || defined(HAVE_FRAMEWORK_COREFOUNDATION)
251	+	extern  void DarwinAddSerialPrefs(void);
252	+
253	+	DarwinAddSerialPrefs();
254	+	#else
255	+	// Until I can convince the other guys that my Darwin code is useful,
256	+	// we just add something safe (non-existant devices):
257	+	PrefsAddString("seriala", "/dev/null");
258	+	PrefsAddString("serialb", "/dev/null");
259	+	#endif
260		#endif
261		}
262
#	Line 285 | Line 308 | void *Sys_open(const char *name, bool re
308		#else
309		bool is_cdrom = strncmp(name, "/dev/cd", 7) == 0;
310		#endif
311	+	bool is_floppy = strncmp(name, "/dev/fd", 7) == 0;
312	+
313	+	#if defined(__APPLE__) && defined(__MACH__)
314	+	//
315	+	// There is no set filename in /dev which is the cdrom,
316	+	// so we have to see if it is any of the devices that we found earlier
317	+	//
318	+	const char      *cdrom;
319	+	int                     tmp = 0;
320	+
321	+	while ( (cdrom = PrefsFindString("cdrom", tmp) ) != NULL )
322	+	{
323	+	if ( strcmp(name, cdrom) == 0 )
324	+	{
325	+	is_cdrom = 1;
326	+	read_only = 1;
327	+	break;
328	+	}
329	+	++tmp;
330	+	}
331	+	#endif
332
333		D(bug("Sys_open(%s, %s)\n", name, read_only ? "read-only" : "read/write"));
334
#	Line 317 | Line 361 | void *Sys_open(const char *name, bool re
361		read_only = true;
362		fd = open(name, O_RDONLY);
363		}
364	<	if (fd >= 0) {
364	>	if (fd >= 0 || is_floppy) { // Floppy open fails if there's no disk inserted
365		file_handle *fh = new file_handle;
366		fh->name = strdup(name);
367		fh->fd = fd;
368		fh->is_file = is_file;
369		fh->read_only = read_only;
370		fh->start_byte = 0;
371	<	fh->is_floppy = false;
372	<	fh->is_cdrom = false;
371	>	fh->is_floppy = is_floppy;
372	>	fh->is_cdrom = is_cdrom;
373		if (fh->is_file) {
374		// Detect disk image file layout
375		loff_t size = 0;
332	–	#if defined(__linux__)
333	–	_llseek(fh->fd, 0, 0, &size, SEEK_END);
334	–	#else
376		size = lseek(fd, 0, SEEK_END);
336	–	#endif
377		uint8 data[256];
378		lseek(fd, 0, SEEK_SET);
379		read(fd, data, 256);
#	Line 368 | Line 408 | void *Sys_open(const char *name, bool re
408		fh->is_floppy = ((st.st_rdev >> 16) == 2);
409		#endif
410		}
411	+	#if defined(__APPLE__) && defined(__MACH__)
412	+
413	+	// In OS X, the device name is OK for sending ioctls to,
414	+	// but not for reading raw CDROM data from.
415	+	// (it seems to have extra data padded in)
416	+	//
417	+	// So, we keep the already opened fiole handle,
418	+	// and open a slightly different file for CDROM data
419	+	//
420	+	if ( is_cdrom )
421	+	{
422	+	fh->ioctl_name  = fh->name;
423	+	fh->ioctl_fd    = fh->fd;
424	+
425	+	fh->name = (char *) malloc(strlen(name) + 2);
426	+	if ( fh->name )
427	+	{
428	+	*fh->name = '\0';
429	+	strcat(fh->name, name);
430	+	strcat(fh->name, "s1");
431	+	fh->fd = open(fh->name, (read_only ? O_RDONLY : O_RDWR));
432	+	if ( fh->fd < 0 ) {
433	+	printf("WARNING: Cannot open %s (%s)\n",
434	+	fh->name, strerror(errno));
435	+	return NULL;
436	+	}
437	+	}
438	+	}
439	+	#endif
440		}
441		}
442		if (fh->is_floppy && first_floppy == NULL)
#	Line 390 | Line 459 | void Sys_close(void *arg)
459		if (!fh)
460		return;
461
462	<	close(fh->fd);
462	>	if (fh->fd >= 0)
463	>	close(fh->fd);
464		if (fh->name)
465		free(fh->name);
466		delete fh;
#	Line 409 | Line 479 | size_t Sys_read(void *arg, void *buffer,
479		return 0;
480
481		// Seek to position
412	–	#if defined(__linux__)
413	–	loff_t pos = offset + fh->start_byte, res;
414	–	if (_llseek(fh->fd, pos >> 32, pos, &res, SEEK_SET) < 0)
415	–	return 0;
416	–	#else
482		if (lseek(fh->fd, offset + fh->start_byte, SEEK_SET) < 0)
483		return 0;
419	–	#endif
484
485		// Read data
486		return read(fh->fd, buffer, length);
#	Line 435 | Line 499 | size_t Sys_write(void *arg, void *buffer
499		return 0;
500
501		// Seek to position
438	–	#if defined(__linux__)
439	–	loff_t pos = offset + fh->start_byte, res;
440	–	if (_llseek(fh->fd, pos >> 32, pos, &res, SEEK_SET) < 0)
441	–	return 0;
442	–	#else
502		if (lseek(fh->fd, offset + fh->start_byte, SEEK_SET) < 0)
503		return 0;
445	–	#endif
504
505		// Write data
506		return write(fh->fd, buffer, length);
#	Line 487 | Line 545 | void SysEject(void *arg)
545
546		#if defined(__linux__)
547		if (fh->is_floppy) {
548	<	fsync(fh->fd);
549	<	ioctl(fh->fd, FDFLUSH);
550	<	ioctl(fh->fd, FDEJECT);
551	<	close(fh->fd);  // Close and reopen so the driver will see the media change
548	>	if (fh->fd >= 0) {
549	>	fsync(fh->fd);
550	>	ioctl(fh->fd, FDFLUSH);
551	>	ioctl(fh->fd, FDEJECT);
552	>	close(fh->fd);  // Close and reopen so the driver will see the media change
553	>	}
554		fh->fd = open(fh->name, fh->read_only ? O_RDONLY : O_RDWR);
555		} else if (fh->is_cdrom) {
556		ioctl(fh->fd, CDROMEJECT);
#	Line 505 | Line 565 | void SysEject(void *arg)
565		close(fh->fd);  // Close and reopen so the driver will see the media change
566		fh->fd = open(fh->name, O_RDONLY | O_NONBLOCK);
567		}
568	+	#elif defined(__APPLE__) && defined(__MACH__)
569	+	if ( fh->is_cdrom ) {
570	+
571	+	// Stolen from IOKit/storage/IOMediaBSDClient.h
572	+	#define DKIOCEJECT _IO('d', 21)
573	+
574	+	close(fh->fd);
575	+	if ( ioctl(fh->ioctl_fd, DKIOCEJECT) < 0 )
576	+	{
577	+	printf("ioctl(DKIOCEJECT) failed on file %s: %s\n",
578	+	fh->ioctl_name, strerror(errno));
579	+
580	+	// If we are running OSX, the device may be is busy
581	+	// due to the Finder having the disk mounted and open,
582	+	// so we have to use another method.
583	+
584	+	// The only problem is that this takes about 5 seconds:
585	+
586	+	char    *cmd = (char *) malloc(30+sizeof(fh->name));
587	+
588	+	if ( ! cmd )
589	+	return;
590	+	close(fh->ioctl_fd);
591	+	sprintf(cmd, "diskutil eject %s 2>&1 >/dev/null", fh->name);
592	+	system(cmd);
593	+	}
594	+	}
595		#endif
596		}
597
#	Line 536 | Line 623 | bool SysIsReadOnly(void *arg)
623
624		#if defined(__linux__)
625		if (fh->is_floppy) {
626	<	struct floppy_drive_struct stat;
627	<	ioctl(fh->fd, FDGETDRVSTAT, &stat);
628	<	return !(stat.flags & FD_DISK_WRITABLE);
626	>	if (fh->fd >= 0) {
627	>	struct floppy_drive_struct stat;
628	>	ioctl(fh->fd, FDGETDRVSTAT, &stat);
629	>	return !(stat.flags & FD_DISK_WRITABLE);
630	>	} else
631	>	return true;
632		} else
633		#endif
634		return fh->read_only;
#	Line 711 | Line 801 | bool SysCDReadTOC(void *arg, uint8 *toc)
801		*toc++ = toc_size >> 8;
802		*toc++ = toc_size & 0xff;
803		return true;
804	+	#elif defined(__APPLE__) && defined(__MACH__) && defined(MAC_OS_X_VERSION_10_2) && defined(HAVE_FRAMEWORK_COREFOUNDATION)
805	+	extern  bool    DarwinCDReadTOC(char *name, uint8 *toc);
806	+
807	+	return  DarwinCDReadTOC(fh->name, toc);
808		#elif defined(__FreeBSD__)
809		uint8 *p = toc + 2;
810

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