1 |
/* |
2 |
* cdrom.cpp - CD-ROM driver |
3 |
* |
4 |
* Basilisk II (C) 1997-2001 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 |
8 |
* the Free Software Foundation; either version 2 of the License, or |
9 |
* (at your option) any later version. |
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* |
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* This program 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 |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
17 |
* along with this program; if not, write to the Free Software |
18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 |
*/ |
20 |
|
21 |
/* |
22 |
* SEE ALSO |
23 |
* Inside Macintosh: Devices, chapter 1 "Device Manager" |
24 |
* Technote DV 05: "Drive Queue Elements" |
25 |
* Technote DV 22: "CD-ROM Driver Calls" |
26 |
* Technote DV 23: "Driver Education" |
27 |
* Technote FL 24: "Don't Look at ioPosOffset for Devices" |
28 |
* Technote FL 36: "Apple Extensions to ISO 9660" |
29 |
*/ |
30 |
|
31 |
#include <string.h> |
32 |
|
33 |
#include "sysdeps.h" |
34 |
#include "cpu_emulation.h" |
35 |
#include "main.h" |
36 |
#include "macos_util.h" |
37 |
#include "sys.h" |
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#include "prefs.h" |
39 |
#include "cdrom.h" |
40 |
|
41 |
#define DEBUG 0 |
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#include "debug.h" |
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|
44 |
|
45 |
// CDROM disk/drive icon |
46 |
const uint8 CDROMIcon[258] = { |
47 |
0x3f, 0xff, 0xff, 0xf0, 0x40, 0x00, 0x00, 0x08, 0x80, 0x1f, 0xc0, 0x04, 0x80, 0x75, 0x70, 0x04, |
48 |
0x81, 0xaa, 0xac, 0x04, 0x83, 0x55, 0x56, 0x04, 0x86, 0xaa, 0xab, 0x04, 0x8d, 0x55, 0x55, 0x84, |
49 |
0x8a, 0xaa, 0xaa, 0xc4, 0x95, 0x5f, 0xd5, 0x44, 0x9a, 0xb0, 0x6a, 0xe4, 0xb5, 0x67, 0x35, 0x64, |
50 |
0xaa, 0xcf, 0x9a, 0xb4, 0xb5, 0x5c, 0x55, 0x74, 0xaa, 0xd8, 0x5a, 0xb4, 0xb5, 0x58, 0x55, 0x74, |
51 |
0xaa, 0xc8, 0x9a, 0xb4, 0xb5, 0x67, 0x35, 0x74, 0x9a, 0xb0, 0x6a, 0xf4, 0x95, 0x5f, 0xd5, 0x64, |
52 |
0x8a, 0xaa, 0xaa, 0xe4, 0x8d, 0x55, 0x55, 0xc4, 0x86, 0xaa, 0xab, 0xc4, 0x83, 0x55, 0x57, 0x84, |
53 |
0x81, 0xaa, 0xaf, 0x04, 0x80, 0xf5, 0x7e, 0x04, 0x80, 0x3f, 0xf8, 0x04, 0x80, 0x0f, 0xe0, 0x04, |
54 |
0xff, 0xff, 0xff, 0xfc, 0x80, 0x00, 0x00, 0x04, 0x80, 0x1f, 0xf0, 0x04, 0x7f, 0xff, 0xff, 0xf8, |
55 |
|
56 |
0x3f, 0xff, 0xff, 0xf0, 0x7f, 0xff, 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, |
57 |
0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, |
58 |
0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, |
59 |
0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, |
60 |
0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, |
61 |
0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, |
62 |
0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, |
63 |
0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfc, 0x7f, 0xff, 0xff, 0xf8, |
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|
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0, 0 |
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}; |
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|
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|
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// Tables for converting bin<->BCD |
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static const uint8 bin2bcd[256] = { |
71 |
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, |
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, |
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, |
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, |
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0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, |
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0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, |
77 |
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, |
78 |
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, |
79 |
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, |
80 |
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, |
81 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
82 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
83 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
84 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
85 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
86 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
87 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
88 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
89 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
90 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
91 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
92 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
93 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
94 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff |
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}; |
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|
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static const uint8 bcd2bin[256] = { |
100 |
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
101 |
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
102 |
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
103 |
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
104 |
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
105 |
50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
106 |
60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
107 |
70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
108 |
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
109 |
90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
110 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
111 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
112 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
113 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
114 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
115 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff |
116 |
}; |
117 |
|
118 |
|
119 |
// Struct for each drive |
120 |
struct DriveInfo { |
121 |
DriveInfo() |
122 |
{ |
123 |
next = NULL; |
124 |
num = 0; |
125 |
fh = NULL; |
126 |
start_byte = 0; |
127 |
status = 0; |
128 |
} |
129 |
|
130 |
DriveInfo *next; // Pointer to next DriveInfo (must be first in struct!) |
131 |
int num; // Drive number |
132 |
void *fh; // File handle |
133 |
int block_size; // CD-ROM block size |
134 |
int twok_offset; // Offset of beginning of 2K block to last Prime position |
135 |
uint32 start_byte; // Start of HFS partition on disk |
136 |
bool to_be_mounted; // Flag: drive must be mounted in accRun |
137 |
bool mount_non_hfs; // Flag: Issue disk-inserted events for non-HFS disks |
138 |
|
139 |
uint8 toc[804]; // TOC of currently inserted disk |
140 |
uint8 lead_out[3]; // MSF address of lead-out track |
141 |
uint8 stop_at[3]; // MSF address of audio play stopping point |
142 |
|
143 |
uint8 play_mode; // Audio play mode |
144 |
uint8 power_mode; // Power mode |
145 |
uint32 status; // Mac address of drive status record |
146 |
}; |
147 |
|
148 |
// Linked list of DriveInfos |
149 |
static DriveInfo *first_drive_info; |
150 |
|
151 |
// Icon address (Mac address space, set by PatchROM()) |
152 |
uint32 CDROMIconAddr; |
153 |
|
154 |
// Flag: Control(accRun) has been called, interrupt routine is now active |
155 |
static bool acc_run_called = false; |
156 |
|
157 |
|
158 |
/* |
159 |
* Get pointer to drive info, NULL = invalid drive number |
160 |
*/ |
161 |
|
162 |
static DriveInfo *get_drive_info(int num) |
163 |
{ |
164 |
DriveInfo *info = first_drive_info; |
165 |
while (info != NULL) { |
166 |
if (info->num == num) |
167 |
return info; |
168 |
info = info->next; |
169 |
} |
170 |
return NULL; |
171 |
} |
172 |
|
173 |
|
174 |
/* |
175 |
* Find HFS partition, set info->start_byte (0 = no HFS partition) |
176 |
*/ |
177 |
|
178 |
static void find_hfs_partition(DriveInfo *info) |
179 |
{ |
180 |
info->start_byte = 0; |
181 |
uint8 *map = new uint8[512]; |
182 |
|
183 |
// Search first 64 blocks for HFS partition |
184 |
for (int i=0; i<64; i++) { |
185 |
if (Sys_read(info->fh, map, i * 512, 512) != 512) |
186 |
break; |
187 |
|
188 |
// Not a partition map block? Then look at next block |
189 |
uint16 sig = (map[0] << 8) | map[1]; |
190 |
if (sig != 0x504d) |
191 |
continue; |
192 |
|
193 |
// Partition map block found, Apple HFS partition? |
194 |
if (strcmp((char *)(map + 48), "Apple_HFS") == 0) { |
195 |
info->start_byte = ntohl(((uint32 *)map)[2]) << 9; |
196 |
D(bug(" HFS partition found at %d, %d blocks\n", info->start_byte, ntohl(((uint32 *)map)[3]))); |
197 |
break; |
198 |
} |
199 |
} |
200 |
delete[] map; |
201 |
} |
202 |
|
203 |
|
204 |
/* |
205 |
* Read TOC of disk and set lead_out |
206 |
*/ |
207 |
|
208 |
static void read_toc(DriveInfo *info) |
209 |
{ |
210 |
// Read TOC |
211 |
memset(&info->toc, 0, sizeof(info->toc)); |
212 |
SysCDReadTOC(info->fh, info->toc); |
213 |
D(bug(" TOC: %08lx %08lx\n", ntohl(((uint32 *)info->toc)[0]), ntohl(((uint32 *)info->toc)[1]))); |
214 |
|
215 |
// Find lead-out track |
216 |
info->lead_out[0] = 0; |
217 |
info->lead_out[1] = 0; |
218 |
info->lead_out[2] = 0; |
219 |
for (int i=4; i<804; i+=8) { |
220 |
if (info->toc[i+2] == 0xaa) { |
221 |
info->stop_at[0] = info->lead_out[0] = info->toc[i+5]; |
222 |
info->stop_at[1] = info->lead_out[1] = info->toc[i+6]; |
223 |
info->stop_at[2] = info->lead_out[2] = info->toc[i+7]; |
224 |
break; |
225 |
} |
226 |
} |
227 |
D(bug(" Lead-Out M %d S %d F %d\n", info->lead_out[0], info->lead_out[1], info->lead_out[2])); |
228 |
} |
229 |
|
230 |
|
231 |
/* |
232 |
* Convert audio positioning type/position to MSF address |
233 |
* Return: false = error |
234 |
*/ |
235 |
|
236 |
static bool position2msf(DriveInfo *info, uint16 postype, uint32 pos, bool stopping, uint8 &m, uint8 &s, uint8 &f) |
237 |
{ |
238 |
switch (postype) { |
239 |
case 0: |
240 |
m = pos / (60 * 75); |
241 |
s = (pos / 75) % 60; |
242 |
f = pos % 75; |
243 |
return true; |
244 |
case 1: |
245 |
m = bcd2bin[(pos >> 16) & 0xff]; |
246 |
s = bcd2bin[(pos >> 8) & 0xff]; |
247 |
f = bcd2bin[pos & 0xff]; |
248 |
return true; |
249 |
case 2: { |
250 |
uint8 track = bcd2bin[pos & 0xff]; |
251 |
if (stopping) |
252 |
track++; |
253 |
for (int i=4; i<804; i+=8) { |
254 |
if (info->toc[i+2] == track || info->toc[i+2] == 0xaa) { |
255 |
m = info->toc[i+5]; |
256 |
s = info->toc[i+6]; |
257 |
f = info->toc[i+7]; |
258 |
return true; |
259 |
} |
260 |
} |
261 |
return false; |
262 |
} |
263 |
default: |
264 |
return false; |
265 |
} |
266 |
} |
267 |
|
268 |
|
269 |
/* |
270 |
* Initialization |
271 |
*/ |
272 |
|
273 |
void CDROMInit(void) |
274 |
{ |
275 |
first_drive_info = NULL; |
276 |
|
277 |
// No drives specified in prefs? Then add defaults |
278 |
if (PrefsFindString("cdrom", 0) == NULL) |
279 |
SysAddCDROMPrefs(); |
280 |
|
281 |
// Add drives specified in preferences |
282 |
int32 index = 0; |
283 |
const char *str; |
284 |
while ((str = PrefsFindString("cdrom", index++)) != NULL) { |
285 |
void *fh = Sys_open(str, true); |
286 |
if (fh) { |
287 |
DriveInfo *info = new DriveInfo; |
288 |
info->fh = fh; |
289 |
DriveInfo *p = (DriveInfo *)&first_drive_info; |
290 |
while (p->next != NULL) |
291 |
p = p->next; |
292 |
p->next = info; |
293 |
} |
294 |
} |
295 |
} |
296 |
|
297 |
|
298 |
/* |
299 |
* Deinitialization |
300 |
*/ |
301 |
|
302 |
void CDROMExit(void) |
303 |
{ |
304 |
DriveInfo *info = first_drive_info, *next; |
305 |
while (info != NULL) { |
306 |
SysAllowRemoval(info->fh); |
307 |
Sys_close(info->fh); |
308 |
next = info->next; |
309 |
delete info; |
310 |
info = next; |
311 |
} |
312 |
} |
313 |
|
314 |
|
315 |
/* |
316 |
* Disk was inserted, flag for mounting |
317 |
*/ |
318 |
|
319 |
bool CDROMMountVolume(void *fh) |
320 |
{ |
321 |
DriveInfo *info; |
322 |
for (info = first_drive_info; info != NULL && info->fh != fh; info = info->next) ; |
323 |
if (info) { |
324 |
if (SysIsDiskInserted(info->fh)) { |
325 |
SysPreventRemoval(info->fh); |
326 |
WriteMacInt8(info->status + dsDiskInPlace, 1); |
327 |
read_toc(info); |
328 |
find_hfs_partition(info); |
329 |
if (info->start_byte != 0 || info->mount_non_hfs) |
330 |
info->to_be_mounted = true; |
331 |
} |
332 |
return true; |
333 |
} else |
334 |
return false; |
335 |
} |
336 |
|
337 |
|
338 |
/* |
339 |
* Mount volumes for which the to_be_mounted flag is set |
340 |
* (called during interrupt time) |
341 |
*/ |
342 |
|
343 |
static void mount_mountable_volumes(void) |
344 |
{ |
345 |
DriveInfo *info = first_drive_info; |
346 |
while (info != NULL) { |
347 |
|
348 |
// Disk in drive? |
349 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) { |
350 |
|
351 |
// No, check if disk was inserted |
352 |
if (SysIsDiskInserted(info->fh)) |
353 |
CDROMMountVolume(info->fh); |
354 |
} |
355 |
|
356 |
// Mount disk if flagged |
357 |
if (info->to_be_mounted) { |
358 |
D(bug(" mounting drive %d\n", info->num)); |
359 |
M68kRegisters r; |
360 |
r.d[0] = info->num; |
361 |
r.a[0] = 7; // diskEvent |
362 |
Execute68kTrap(0xa02f, &r); // PostEvent() |
363 |
info->to_be_mounted = false; |
364 |
} |
365 |
|
366 |
info = info->next; |
367 |
} |
368 |
} |
369 |
|
370 |
|
371 |
/* |
372 |
* Driver Open() routine |
373 |
*/ |
374 |
|
375 |
int16 CDROMOpen(uint32 pb, uint32 dce) |
376 |
{ |
377 |
D(bug("CDROMOpen\n")); |
378 |
|
379 |
// Set up DCE |
380 |
WriteMacInt32(dce + dCtlPosition, 0); |
381 |
acc_run_called = false; |
382 |
|
383 |
// Install drives |
384 |
for (DriveInfo *info = first_drive_info; info; info = info->next) { |
385 |
|
386 |
info->num = FindFreeDriveNumber(1); |
387 |
info->to_be_mounted = false; |
388 |
|
389 |
if (info->fh) { |
390 |
info->mount_non_hfs = true; |
391 |
info->block_size = 512; |
392 |
info->twok_offset = -1; |
393 |
info->play_mode = 0x09; |
394 |
info->power_mode = 0; |
395 |
|
396 |
// Allocate drive status record |
397 |
M68kRegisters r; |
398 |
r.d[0] = SIZEOF_DrvSts; |
399 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
400 |
if (r.a[0] == 0) |
401 |
continue; |
402 |
info->status = r.a[0]; |
403 |
D(bug(" DrvSts at %08lx\n", info->status)); |
404 |
|
405 |
// Set up drive status |
406 |
WriteMacInt8(info->status + dsWriteProt, 0x80); |
407 |
WriteMacInt8(info->status + dsInstalled, 1); |
408 |
WriteMacInt8(info->status + dsSides, 1); |
409 |
|
410 |
// Disk in drive? |
411 |
if (SysIsDiskInserted(info->fh)) { |
412 |
SysPreventRemoval(info->fh); |
413 |
WriteMacInt8(info->status + dsDiskInPlace, 1); |
414 |
read_toc(info); |
415 |
find_hfs_partition(info); |
416 |
info->to_be_mounted = true; |
417 |
} |
418 |
|
419 |
// Add drive to drive queue |
420 |
D(bug(" adding drive %d\n", info->num)); |
421 |
r.d[0] = (info->num << 16) | (CDROMRefNum & 0xffff); |
422 |
r.a[0] = info->status + dsQLink; |
423 |
Execute68kTrap(0xa04e, &r); // AddDrive() |
424 |
} |
425 |
} |
426 |
return noErr; |
427 |
} |
428 |
|
429 |
|
430 |
/* |
431 |
* Driver Prime() routine |
432 |
*/ |
433 |
|
434 |
int16 CDROMPrime(uint32 pb, uint32 dce) |
435 |
{ |
436 |
WriteMacInt32(pb + ioActCount, 0); |
437 |
|
438 |
// Drive valid and disk inserted? |
439 |
DriveInfo *info; |
440 |
if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL) |
441 |
return nsDrvErr; |
442 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
443 |
return offLinErr; |
444 |
|
445 |
// Get parameters |
446 |
void *buffer = Mac2HostAddr(ReadMacInt32(pb + ioBuffer)); |
447 |
size_t length = ReadMacInt32(pb + ioReqCount); |
448 |
loff_t position = ReadMacInt32(dce + dCtlPosition); |
449 |
if ((length & (info->block_size - 1)) || (position & (info->block_size - 1))) |
450 |
return paramErr; |
451 |
info->twok_offset = (position + info->start_byte) & 0x7ff; |
452 |
|
453 |
size_t actual = 0; |
454 |
if ((ReadMacInt16(pb + ioTrap) & 0xff) == aRdCmd) { |
455 |
|
456 |
// Read |
457 |
actual = Sys_read(info->fh, buffer, position + info->start_byte, length); |
458 |
if (actual != length) { |
459 |
|
460 |
// Read error, tried to read HFS root block? |
461 |
if (length == 0x200 && position == 0x400) { |
462 |
|
463 |
// Yes, fake (otherwise audio CDs won't get mounted) |
464 |
memset(buffer, 0, 0x200); |
465 |
actual = 0x200; |
466 |
} else |
467 |
return readErr; |
468 |
} |
469 |
} else |
470 |
return wPrErr; |
471 |
|
472 |
// Update ParamBlock and DCE |
473 |
WriteMacInt32(pb + ioActCount, actual); |
474 |
WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual); |
475 |
return noErr; |
476 |
} |
477 |
|
478 |
|
479 |
/* |
480 |
* Driver Control() routine |
481 |
*/ |
482 |
|
483 |
int16 CDROMControl(uint32 pb, uint32 dce) |
484 |
{ |
485 |
uint16 code = ReadMacInt16(pb + csCode); |
486 |
D(bug("CDROMControl %d\n", code)); |
487 |
|
488 |
// General codes |
489 |
switch (code) { |
490 |
case 1: // KillIO |
491 |
return noErr; |
492 |
|
493 |
case 65: { // Periodic action (accRun, "insert" disks on startup) |
494 |
mount_mountable_volumes(); |
495 |
WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action |
496 |
acc_run_called = true; |
497 |
return noErr; |
498 |
} |
499 |
|
500 |
case 81: // Set poll freq |
501 |
WriteMacInt16(dce + dCtlDelay, ReadMacInt16(pb + csParam)); |
502 |
return noErr; |
503 |
} |
504 |
|
505 |
// Drive valid? |
506 |
DriveInfo *info; |
507 |
if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL) |
508 |
if (first_drive_info == NULL) |
509 |
return nsDrvErr; |
510 |
else |
511 |
info = first_drive_info; // This is needed for Apple's Audio CD program |
512 |
|
513 |
// Drive-specific codes |
514 |
switch (code) { |
515 |
case 5: // VerifyTheDisc |
516 |
if (ReadMacInt8(info->status + dsDiskInPlace) > 0) |
517 |
return noErr; |
518 |
else |
519 |
return offLinErr; |
520 |
|
521 |
case 6: // FormatTheDisc |
522 |
return writErr; |
523 |
|
524 |
case 7: // EjectTheDisc |
525 |
if (ReadMacInt8(info->status + dsDiskInPlace) > 0) { |
526 |
SysAllowRemoval(info->fh); |
527 |
SysEject(info->fh); |
528 |
WriteMacInt8(info->status + dsDiskInPlace, 0); |
529 |
info->twok_offset = -1; |
530 |
} |
531 |
return noErr; |
532 |
|
533 |
case 21: // GetDriveIcon |
534 |
case 22: // GetMediaIcon |
535 |
WriteMacInt32(pb + csParam, CDROMIconAddr); |
536 |
return noErr; |
537 |
|
538 |
case 23: // DriveInfo |
539 |
WriteMacInt32(pb + csParam, 0x00000b01); // Unspecified external removable SCSI disk |
540 |
return noErr; |
541 |
|
542 |
case 70: { // SetPowerMode |
543 |
uint8 mode = ReadMacInt8(pb + csParam); |
544 |
if (mode > 3) |
545 |
return paramErr; |
546 |
else { |
547 |
info->power_mode = mode; |
548 |
return noErr; |
549 |
} |
550 |
} |
551 |
|
552 |
case 76: // ModifyPostEvent |
553 |
info->mount_non_hfs = ReadMacInt16(pb + csParam); |
554 |
return noErr; |
555 |
|
556 |
case 79: { // Change block size |
557 |
uint16 size = ReadMacInt16(pb + csParam); |
558 |
D(bug(" change block size to %d bytes\n", size)); |
559 |
if (size != 512 && size != 2048) |
560 |
return paramErr; |
561 |
else { |
562 |
info->block_size = size; |
563 |
return noErr; |
564 |
} |
565 |
} |
566 |
|
567 |
case 80: // SetUserEject |
568 |
if (ReadMacInt8(info->status + dsDiskInPlace) > 0) { |
569 |
if (ReadMacInt16(pb + csParam) == 1) |
570 |
SysAllowRemoval(info->fh); |
571 |
else |
572 |
SysPreventRemoval(info->fh); |
573 |
return noErr; |
574 |
} else |
575 |
return offLinErr; |
576 |
|
577 |
case 100: { // ReadTOC |
578 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
579 |
return offLinErr; |
580 |
|
581 |
int action = ReadMacInt16(pb + csParam); |
582 |
D(bug(" read TOC %d\n", action)); |
583 |
switch (action) { |
584 |
case 1: // Get first/last track number |
585 |
WriteMacInt8(pb + csParam, bin2bcd[info->toc[2]]); |
586 |
WriteMacInt8(pb + csParam + 1, bin2bcd[info->toc[3]]); |
587 |
WriteMacInt16(pb + csParam + 2, 0); |
588 |
break; |
589 |
|
590 |
case 2: // Get lead out MSF starting address |
591 |
WriteMacInt8(pb + csParam, bin2bcd[info->lead_out[0]]); |
592 |
WriteMacInt8(pb + csParam + 1, bin2bcd[info->lead_out[1]]); |
593 |
WriteMacInt8(pb + csParam + 2, bin2bcd[info->lead_out[2]]); |
594 |
WriteMacInt8(pb + csParam + 3, 0); |
595 |
break; |
596 |
|
597 |
case 3: { // Get track starting address |
598 |
uint32 buf = ReadMacInt32(pb + csParam + 2); |
599 |
uint16 buf_size = ReadMacInt16(pb + csParam + 6); |
600 |
int track = bcd2bin[ReadMacInt8(pb + csParam + 8)]; |
601 |
|
602 |
// Search start track in TOC |
603 |
int i; |
604 |
for (i=4; i<804; i+=8) { |
605 |
if (info->toc[i+2] == track) |
606 |
break; |
607 |
} |
608 |
|
609 |
// Fill buffer |
610 |
if (i != 804) |
611 |
while (buf_size > 0) { |
612 |
WriteMacInt8(buf, info->toc[i+1] & 0x0f); buf++; // Control |
613 |
WriteMacInt8(buf, bin2bcd[info->toc[i+5]]); buf++; // M |
614 |
WriteMacInt8(buf, bin2bcd[info->toc[i+6]]); buf++; // S |
615 |
WriteMacInt8(buf, bin2bcd[info->toc[i+7]]); buf++; // F |
616 |
|
617 |
// Lead-Out? Then stop |
618 |
if (info->toc[i+2] == 0xaa) |
619 |
break; |
620 |
|
621 |
buf_size -= 4; |
622 |
i += 8; |
623 |
} |
624 |
break; |
625 |
} |
626 |
|
627 |
case 5: // Get session information |
628 |
WriteMacInt16(pb + csParam, 1); // First session number |
629 |
WriteMacInt16(pb + csParam + 2, 1); // Last session number |
630 |
WriteMacInt16(pb + csParam + 4, bin2bcd[info->toc[2]]); // First track number of last session |
631 |
WriteMacInt8(pb + csParam + 6, info->toc[5] & 0x0f); // Control |
632 |
WriteMacInt8(pb + csParam + 7, bin2bcd[info->toc[9]]); // M |
633 |
WriteMacInt8(pb + csParam + 8, bin2bcd[info->toc[10]]); // S |
634 |
WriteMacInt8(pb + csParam + 9, bin2bcd[info->toc[11]]); // F |
635 |
break; |
636 |
|
637 |
default: |
638 |
printf("FATAL: .AppleCD/Control(100): unimplemented TOC type\n"); |
639 |
return paramErr; |
640 |
} |
641 |
return noErr; |
642 |
} |
643 |
|
644 |
case 101: { // ReadTheQSubcode |
645 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) { |
646 |
Mac_memset(pb + csParam, 0, 10); |
647 |
return offLinErr; |
648 |
} |
649 |
|
650 |
uint8 pos[16]; |
651 |
if (SysCDGetPosition(info->fh, pos)) { |
652 |
uint32 p = pb + csParam; |
653 |
WriteMacInt8(p, pos[5] & 0x0f); p++; // Control |
654 |
WriteMacInt8(p, bin2bcd[pos[6]]); p++; // Track number |
655 |
WriteMacInt8(p, bin2bcd[pos[7]]); p++; // Index number |
656 |
WriteMacInt8(p, bin2bcd[pos[13]]); p++; // M (rel) |
657 |
WriteMacInt8(p, bin2bcd[pos[14]]); p++; // S (rel) |
658 |
WriteMacInt8(p, bin2bcd[pos[15]]); p++; // F (rel) |
659 |
WriteMacInt8(p, bin2bcd[pos[9]]); p++; // M (abs) |
660 |
WriteMacInt8(p, bin2bcd[pos[10]]); p++; // S (abs) |
661 |
WriteMacInt8(p, bin2bcd[pos[11]]); p++; // F (abs) |
662 |
WriteMacInt8(p, 0); |
663 |
return noErr; |
664 |
} else |
665 |
return ioErr; |
666 |
} |
667 |
|
668 |
case 102: // ReadHeader |
669 |
printf("FATAL: .AppleCD/Control(102): unimplemented call\n"); |
670 |
return controlErr; |
671 |
|
672 |
case 103: { // AudioTrackSearch |
673 |
D(bug(" AudioTrackSearch postype %d, pos %08x, hold %d\n", ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), ReadMacInt16(pb + csParam + 6))); |
674 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
675 |
return offLinErr; |
676 |
|
677 |
uint8 start_m, start_s, start_f; |
678 |
if (!position2msf(info, ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), false, start_m, start_s, start_f)) |
679 |
return paramErr; |
680 |
info->play_mode = ReadMacInt8(pb + csParam + 9) & 0x0f; |
681 |
if (!SysCDPlay(info->fh, start_m, start_s, start_f, info->stop_at[0], info->stop_at[1], info->stop_at[2])) |
682 |
return paramErr; |
683 |
if (ReadMacInt16(pb + csParam + 6) == 0) // Hold |
684 |
SysCDPause(info->fh); |
685 |
return noErr; |
686 |
} |
687 |
|
688 |
case 104: // AudioPlay |
689 |
D(bug(" AudioPlay postype %d, pos %08lx, hold %d\n", ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), ReadMacInt16(pb + csParam + 6))); |
690 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
691 |
return offLinErr; |
692 |
|
693 |
if (ReadMacInt16(pb + csParam + 6)) { |
694 |
// Given stopping address |
695 |
if (!position2msf(info, ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), true, info->stop_at[0], info->stop_at[1], info->stop_at[2])) |
696 |
return paramErr; |
697 |
} else { |
698 |
// Given starting address |
699 |
uint8 start_m, start_s, start_f; |
700 |
if (!position2msf(info, ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), false, start_m, start_s, start_f)) |
701 |
return paramErr; |
702 |
info->play_mode = ReadMacInt8(pb + csParam + 9) & 0x0f; |
703 |
if (!SysCDPlay(info->fh, start_m, start_s, start_f, info->stop_at[0], info->stop_at[1], info->stop_at[2])) |
704 |
return paramErr; |
705 |
} |
706 |
return noErr; |
707 |
|
708 |
case 105: // AudioPause |
709 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
710 |
return offLinErr; |
711 |
|
712 |
switch (ReadMacInt32(pb + csParam)) { |
713 |
case 0: |
714 |
if (!SysCDResume(info->fh)) |
715 |
return paramErr; |
716 |
break; |
717 |
case 1: |
718 |
if (!SysCDPause(info->fh)) |
719 |
return paramErr; |
720 |
break; |
721 |
default: |
722 |
return paramErr; |
723 |
} |
724 |
return noErr; |
725 |
|
726 |
case 106: // AudioStop |
727 |
D(bug(" AudioStop postype %d, pos %08lx\n", ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2))); |
728 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
729 |
return offLinErr; |
730 |
|
731 |
if (ReadMacInt16(pb + csParam) == 0 && ReadMacInt32(pb + csParam + 2) == 0) { |
732 |
// Stop immediately |
733 |
if (!SysCDStop(info->fh, info->lead_out[0], info->lead_out[1], info->lead_out[2])) |
734 |
return paramErr; |
735 |
} else { |
736 |
// Given stopping address |
737 |
if (!position2msf(info, ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), true, info->stop_at[0], info->stop_at[1], info->stop_at[2])) |
738 |
return paramErr; |
739 |
} |
740 |
return noErr; |
741 |
|
742 |
case 107: { // AudioStatus |
743 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
744 |
return offLinErr; |
745 |
|
746 |
uint8 pos[16]; |
747 |
if (!SysCDGetPosition(info->fh, pos)) |
748 |
return paramErr; |
749 |
|
750 |
uint32 p = pb + csParam; |
751 |
switch (pos[1]) { |
752 |
case 0x11: |
753 |
WriteMacInt8(p, 0); // Audio play in progress |
754 |
break; |
755 |
case 0x12: |
756 |
WriteMacInt8(p, 1); // Audio play paused |
757 |
break; |
758 |
case 0x13: |
759 |
WriteMacInt8(p, 3); // Audio play completed |
760 |
break; |
761 |
case 0x14: |
762 |
WriteMacInt8(p, 4); // Error occurred |
763 |
break; |
764 |
default: |
765 |
WriteMacInt8(p, 5); // No audio play operation requested |
766 |
break; |
767 |
} |
768 |
p++; |
769 |
WriteMacInt8(p, info->play_mode); p++; |
770 |
WriteMacInt8(p, pos[5] & 0x0f); p++; // Control |
771 |
WriteMacInt8(p, bin2bcd[pos[9]]); p++; // M (abs) |
772 |
WriteMacInt8(p, bin2bcd[pos[10]]); p++; // S (abs) |
773 |
WriteMacInt8(p, bin2bcd[pos[11]]); p++; // F (abs) |
774 |
return noErr; |
775 |
} |
776 |
|
777 |
case 108: { // AudioScan |
778 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) |
779 |
return offLinErr; |
780 |
|
781 |
uint8 start_m, start_s, start_f; |
782 |
if (!position2msf(info, ReadMacInt16(pb + csParam), ReadMacInt32(pb + csParam + 2), false, start_m, start_s, start_f)) |
783 |
return paramErr; |
784 |
|
785 |
if (!SysCDScan(info->fh, start_m, start_s, start_f, ReadMacInt16(pb + csParam + 6))) |
786 |
return paramErr; |
787 |
else |
788 |
return noErr; |
789 |
} |
790 |
|
791 |
case 109: // AudioControl |
792 |
SysCDSetVolume(info->fh, ReadMacInt8(pb + csParam), ReadMacInt8(pb + csParam + 1)); |
793 |
return noErr; |
794 |
|
795 |
case 110: // ReadMCN |
796 |
printf("FATAL: .AppleCD/Control(110): unimplemented call\n"); |
797 |
return controlErr; |
798 |
|
799 |
case 111: // ReadISRC |
800 |
printf("FATAL: .AppleCD/Control(111): unimplemented call\n"); |
801 |
return controlErr; |
802 |
|
803 |
case 112: { // ReadAudioVolume |
804 |
uint8 left, right; |
805 |
SysCDGetVolume(info->fh, left, right); |
806 |
WriteMacInt8(pb + csParam, left); |
807 |
WriteMacInt8(pb + csParam + 1, right); |
808 |
return noErr; |
809 |
} |
810 |
|
811 |
case 113: // GetSpindleSpeed |
812 |
WriteMacInt16(pb + csParam, 0xff); |
813 |
return noErr; |
814 |
|
815 |
case 114: // SetSpindleSpeed |
816 |
return noErr; |
817 |
|
818 |
case 115: // ReadAudio |
819 |
printf("FATAL: .AppleCD/Control(115): unimplemented call\n"); |
820 |
return controlErr; |
821 |
|
822 |
case 116: // ReadAllSubcodes |
823 |
printf("FATAL: .AppleCD/Control(116): unimplemented call\n"); |
824 |
return controlErr; |
825 |
|
826 |
case 122: // SetTrackList |
827 |
printf("FATAL: .AppleCD/Control(122): unimplemented call\n"); |
828 |
return controlErr; |
829 |
|
830 |
case 123: // GetTrackList |
831 |
printf("FATAL: .AppleCD/Control(123): unimplemented call\n"); |
832 |
return controlErr; |
833 |
|
834 |
case 124: // GetTrackIndex |
835 |
printf("FATAL: .AppleCD/Control(124): unimplemented call\n"); |
836 |
return controlErr; |
837 |
|
838 |
case 125: // SetPlayMode |
839 |
D(bug(" SetPlayMode %04x\n", ReadMacInt16(pb + csParam))); |
840 |
printf("FATAL: .AppleCD/Control(125): unimplemented call\n"); |
841 |
return controlErr; |
842 |
|
843 |
case 126: // GetPlayMode (Apple's Audio CD program needs this) |
844 |
WriteMacInt16(pb + csParam, 0); |
845 |
return noErr; |
846 |
|
847 |
default: |
848 |
printf("WARNING: Unknown CDROMControl(%d)\n", code); |
849 |
return controlErr; |
850 |
} |
851 |
} |
852 |
|
853 |
|
854 |
/* |
855 |
* Driver Status() routine |
856 |
*/ |
857 |
|
858 |
int16 CDROMStatus(uint32 pb, uint32 dce) |
859 |
{ |
860 |
DriveInfo *info = get_drive_info(ReadMacInt16(pb + ioVRefNum)); |
861 |
uint16 code = ReadMacInt16(pb + csCode); |
862 |
D(bug("CDROMStatus %d\n", code)); |
863 |
|
864 |
// General codes |
865 |
switch (code) { |
866 |
case 43: { // DriverGestalt |
867 |
uint32 sel = ReadMacInt32(pb + csParam); |
868 |
D(bug(" driver gestalt %c%c%c%c\n", sel >> 24, sel >> 16, sel >> 8, sel)); |
869 |
switch (sel) { |
870 |
case FOURCC('v','e','r','s'): // Version |
871 |
WriteMacInt32(pb + csParam + 4, 0x05208000); |
872 |
break; |
873 |
case FOURCC('d','e','v','t'): // Device type |
874 |
WriteMacInt32(pb + csParam + 4, FOURCC('c','d','r','m')); |
875 |
break; |
876 |
case FOURCC('i','n','t','f'): // Interface type |
877 |
WriteMacInt32(pb + csParam + 4, EMULATOR_ID_4); |
878 |
break; |
879 |
case FOURCC('s','y','n','c'): // Only synchronous operation? |
880 |
WriteMacInt32(pb + csParam + 4, 0x01000000); |
881 |
break; |
882 |
case FOURCC('b','o','o','t'): // Boot ID |
883 |
if (info != NULL) |
884 |
WriteMacInt16(pb + csParam + 4, info->num); |
885 |
else |
886 |
WriteMacInt16(pb + csParam + 4, 0); |
887 |
WriteMacInt16(pb + csParam + 6, (uint16)CDROMRefNum); |
888 |
break; |
889 |
case FOURCC('w','i','d','e'): // 64-bit access supported? |
890 |
WriteMacInt16(pb + csParam + 4, 0); |
891 |
break; |
892 |
case FOURCC('p','u','r','g'): // Purge flags |
893 |
WriteMacInt32(pb + csParam + 4, 0); |
894 |
break; |
895 |
case FOURCC('e','j','e','c'): // Eject flags |
896 |
WriteMacInt32(pb + csParam + 4, 0x00030003); // Don't eject on shutdown/restart |
897 |
break; |
898 |
case FOURCC('f','l','u','s'): // Flush flags |
899 |
WriteMacInt16(pb + csParam + 4, 0); |
900 |
break; |
901 |
case FOURCC('v','m','o','p'): // Virtual memory attributes |
902 |
WriteMacInt32(pb + csParam + 4, 0); // Drive not available for VM |
903 |
break; |
904 |
default: |
905 |
return statusErr; |
906 |
} |
907 |
return noErr; |
908 |
} |
909 |
} |
910 |
|
911 |
// Drive valid? |
912 |
if (info == NULL) |
913 |
if (first_drive_info == NULL) |
914 |
return nsDrvErr; |
915 |
else |
916 |
info = first_drive_info; // This is needed for Apple's Audio CD program |
917 |
|
918 |
// Drive-specific codes |
919 |
switch (code) { |
920 |
case 6: // Return format list |
921 |
if (ReadMacInt16(pb + csParam) > 0) { |
922 |
uint32 adr = ReadMacInt32(pb + csParam + 2); |
923 |
WriteMacInt16(pb + csParam, 1); // 1 format |
924 |
WriteMacInt32(adr, SysGetFileSize(info->fh) / 512); // Number of blocks |
925 |
WriteMacInt32(adr + 4, 0); // heads/track/sectors |
926 |
return noErr; |
927 |
} else |
928 |
return paramErr; |
929 |
|
930 |
case 8: // DriveStatus |
931 |
Mac2Mac_memcpy(pb + csParam, info->status, 22); |
932 |
return noErr; |
933 |
|
934 |
case 70: // GetPowerMode |
935 |
WriteMacInt16(pb + csParam, info->power_mode << 8); |
936 |
return noErr; |
937 |
|
938 |
case 95: // Get2KOffset |
939 |
if (info->twok_offset > 0) { |
940 |
WriteMacInt16(pb + csParam, info->twok_offset); |
941 |
return noErr; |
942 |
} else |
943 |
return statusErr; |
944 |
|
945 |
case 96: // Get drive type |
946 |
WriteMacInt16(pb + csParam, 3); // Apple CD 300 or newer |
947 |
return noErr; |
948 |
|
949 |
case 98: // Get block size |
950 |
WriteMacInt16(pb + csParam, info->block_size); |
951 |
return noErr; |
952 |
|
953 |
case 120: // Return device ident |
954 |
WriteMacInt32(pb + csParam, 0); |
955 |
return noErr; |
956 |
|
957 |
case 121: // Get CD features |
958 |
WriteMacInt16(pb + csParam, 0x0200); // 300 KB/s |
959 |
WriteMacInt16(pb + csParam, 0x0300); // SCSI-2, stereo |
960 |
return noErr; |
961 |
|
962 |
default: |
963 |
printf("WARNING: Unknown CDROMStatus(%d)\n", code); |
964 |
return statusErr; |
965 |
} |
966 |
} |
967 |
|
968 |
|
969 |
/* |
970 |
* Driver interrupt routine (1Hz) - check for volumes to be mounted |
971 |
*/ |
972 |
|
973 |
void CDROMInterrupt(void) |
974 |
{ |
975 |
if (!acc_run_called) |
976 |
return; |
977 |
|
978 |
mount_mountable_volumes(); |
979 |
} |