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root/cebix/BasiliskII/src/slot_rom.cpp
Revision: 1.11
Committed: 2001-07-03T19:20:38Z (23 years, 4 months ago) by cebix
Branch: MAIN
Changes since 1.10: +22 -35 lines
Log Message:
- improved compatibility of multiple depth/resolution handling with versions
  of MacOS before 7.6:
   - Apple mode IDs are now allocated contiguously from 0x80 (the video_*.cpp
     module must call video_init_depth_list() after adding all modes)
   - if the video driver didn't receive a GetVideoParameters call, it patches
     ScrnBase and the main GDevice upon a video mode switch (otherwise MacOS
     will continue to use the old frame buffer base)
   - the rowBytes values in the video parameters slot resources are correct
     for all bit depths

File Contents

# Content
1 /*
2 * slot_rom.cpp - Slot declaration ROM
3 *
4 * Basilisk II (C) 1996-2001 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.
10 *
11 * 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
14 * GNU General Public License for more details.
15 *
16 * 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 2 "Slot Manager"
24 * Designing Cards and Drivers for the Macintosh Family, Second Edition
25 */
26
27 #include <stdio.h>
28 #include <string.h>
29
30 #include "sysdeps.h"
31 #include "cpu_emulation.h"
32 #include "main.h"
33 #include "video.h"
34 #include "emul_op.h"
35 #include "version.h"
36 #include "slot_rom.h"
37
38
39 // Temporary buffer for slot ROM
40 static uint8 srom[4096];
41
42 // Index in srom
43 static uint32 p;
44
45 // Length of slot ROM
46 static int slot_rom_size = 0;
47
48
49 /*
50 * Construct slot declaration ROM and copy it into the Mac ROM (must be called after VideoInit())
51 */
52
53 static void Offs(uint8 type, uint32 ptr)
54 {
55 uint32 offs = ptr - p;
56 srom[p++] = type;
57 srom[p++] = offs >> 16;
58 srom[p++] = offs >> 8;
59 srom[p++] = offs;
60 }
61
62 static void Rsrc(uint8 type, uint32 data)
63 {
64 srom[p++] = type;
65 srom[p++] = data >> 16;
66 srom[p++] = data >> 8;
67 srom[p++] = data;
68 }
69
70 static void EndOfList(void)
71 {
72 srom[p++] = 0xff;
73 srom[p++] = 0;
74 srom[p++] = 0;
75 srom[p++] = 0;
76 }
77
78 static void Long(uint32 data)
79 {
80 srom[p++] = data >> 24;
81 srom[p++] = data >> 16;
82 srom[p++] = data >> 8;
83 srom[p++] = data;
84 }
85
86 static void Word(uint16 data)
87 {
88 srom[p++] = data >> 8;
89 srom[p++] = data;
90 }
91
92 static void String(char *str)
93 {
94 while ((srom[p++] = *str++) != 0) ;
95 if (p & 1)
96 srom[p++] = 0;
97 }
98
99 static void PString(char *str)
100 {
101 srom[p++] = strlen(str);
102 while ((srom[p++] = *str++) != 0) ;
103 p--;
104 if (p & 1)
105 srom[p++] = 0;
106 }
107
108 static uint32 VModeParms(const video_mode &mode, video_depth depth)
109 {
110 uint32 ret = p;
111 Long(50); // Length
112 Long(0); // Base offset
113 Word(video_bytes_per_row(depth, mode.resolution_id));
114 Word(0); // Bounds
115 Word(0);
116 Word(mode.y);
117 Word(mode.x);
118 Word(0); // Version
119 Word(0); // Pack type
120 Long(0); // Pack size
121 Long(0x00480000); // HRes
122 Long(0x00480000); // VRes
123 switch (depth) {
124 case VDEPTH_1BIT:
125 Word(0); // Pixel type (indirect)
126 Word(1); // Pixel size
127 Word(1); // CmpCount
128 Word(1); // CmpSize
129 break;
130 case VDEPTH_2BIT:
131 Word(0); // Pixel type (indirect)
132 Word(2); // Pixel size
133 Word(1); // CmpCount
134 Word(2); // CmpSize
135 break;
136 case VDEPTH_4BIT:
137 Word(0); // Pixel type (indirect)
138 Word(4); // Pixel size
139 Word(1); // CmpCount
140 Word(4); // CmpSize
141 break;
142 case VDEPTH_8BIT:
143 Word(0); // Pixel type (indirect)
144 Word(8); // Pixel size
145 Word(1); // CmpCount
146 Word(8); // CmpSize
147 break;
148 case VDEPTH_16BIT:
149 Word(16); // Pixel type (direct)
150 Word(16); // Pixel size
151 Word(3); // CmpCount
152 Word(5); // CmpSize
153 break;
154 case VDEPTH_32BIT:
155 Word(16); // Pixel type (direct)
156 Word(32); // Pixel size
157 Word(3); // CmpCount
158 Word(8); // CmpSize
159 break;
160 }
161 Long(0); // Plane size
162 Long(0); // Reserved
163 return ret;
164 }
165
166 static uint32 VModeDesc(uint32 params, bool direct)
167 {
168 uint32 ret = p;
169 Offs(0x01, params); // Video parameters
170 Rsrc(0x03, 1); // Page count
171 Rsrc(0x04, direct ? 2 : 0); // Device type
172 EndOfList();
173 return ret;
174 }
175
176 bool InstallSlotROM(void)
177 {
178 uint32 boardType, boardName, vendorID, revLevel, partNum, date;
179 uint32 vendorInfo, sRsrcBoard;
180
181 uint32 videoType, videoName, minorBase, minorLength, videoDrvr, vidDrvrDir;
182 uint32 defaultGamma, gammaDir, sRsrcVideo;
183 uint32 vidModeParms1, vidModeParms2, vidModeParms4, vidModeParms8, vidModeParms16, vidModeParms32;
184 uint32 vidMode1, vidMode2, vidMode4, vidMode8, vidMode16, vidMode32;
185
186 uint32 cpuType, cpuName, cpuMajor, cpuMinor, sRsrcCPU;
187
188 uint32 etherType, etherName, etherDrvr, etherDrvrDir, sRsrcEther;
189
190 uint32 sRsrcDir;
191
192 char str[256];
193 p = 0;
194
195 // Board sResource
196 boardType = p; // Literals
197 Word(1); Word(0); Word(0); Word(0); // Board sResource
198 boardName = p;
199 String("Basilisk II Slot ROM");
200 vendorID = p;
201 String("Christian Bauer");
202 revLevel = p;
203 sprintf(str, "V%d.%d", VERSION_MAJOR, VERSION_MINOR);
204 String(str);
205 partNum = p;
206 String("BasiliskII");
207 date = p;
208 String(__DATE__);
209
210 vendorInfo = p; // Vendor Info
211 Offs(0x01, vendorID); // Vendor ID
212 Offs(0x03, revLevel); // Revision level
213 Offs(0x04, partNum); // Part number
214 Offs(0x05, date); // ROM build date
215 EndOfList();
216
217 sRsrcBoard = p;
218 Offs(0x01, boardType); // Board descriptor
219 Offs(0x02, boardName); // Board name
220 Rsrc(0x20, 0x4232); // Board ID ('B2')
221 Offs(0x24, vendorInfo); // Vendor Info
222 EndOfList();
223
224 // Video sResource for default mode
225 videoType = p; // Literals
226 Word(3); Word(1); Word(1); Word(0x4232); // Display Video Apple 'B2'
227 videoName = p;
228 String("Display_Video_Apple_Basilisk");
229 minorBase = p;
230 Long(VideoMonitor.mac_frame_base); // Frame buffer base
231 minorLength = p;
232 Long(0); // Frame buffer size (unspecified)
233
234 videoDrvr = p; // Video driver
235 Long(0x72); // Length
236 Word(0x4c00); Word(0); Word(0); Word(0);
237 Word(0x32); // Open offset
238 Word(0x36); // Prime offset
239 Word(0x3a); // Control offset
240 Word(0x46); // Status offset
241 Word(0x6c); // Close offset
242 PString(".Display_Video_Apple_Basilisk");
243 Word(1); // Driver version
244 Word(M68K_EMUL_OP_VIDEO_OPEN); // Open()
245 Word(0x4e75);
246 Word(0x70ff); // Prime()
247 Word(0x600e);
248 Word(M68K_EMUL_OP_VIDEO_CONTROL); // Control()
249 Word(0x0c68); Word(0x0001); Word(0x001a);
250 Word(0x6604);
251 Word(0x4e75);
252 Word(M68K_EMUL_OP_VIDEO_STATUS); // Status()
253 Word(0x3228); Word(0x0006); // IOReturn
254 Word(0x0801); Word(0x0009);
255 Word(0x670c);
256 Word(0x4a40);
257 Word(0x6f02);
258 Word(0x4240);
259 Word(0x3140); Word(0x0010);
260 Word(0x4e75);
261 Word(0x4a40);
262 Word(0x6f04);
263 Word(0x4240);
264 Word(0x4e75);
265 Word(0x2f38); Word(0x08fc);
266 Word(0x4e75);
267 Word(0x70e8); // Close()
268 Word(0x4e75);
269
270 vidDrvrDir = p; // Driver directory
271 Offs(0x02, videoDrvr); // sMacOS68020
272 EndOfList();
273
274 defaultGamma = p; // Gamma table
275 Long(38 + 0x100); // Length
276 Word(0x2000); // Resource ID
277 String("Mac HiRes Std Gamma");
278 Word(0); // Version
279 Word(0); // Type
280 Word(0); // FormulaSize
281 Word(1); // ChanCnt
282 Word(0x0100); // DataCnt
283 Word(8); // ChanWidth
284 Long(0x0005090B); Long(0x0E101315); Long(0x17191B1D); Long(0x1E202224);
285 Long(0x2527282A); Long(0x2C2D2F30); Long(0x31333436); Long(0x37383A3B);
286 Long(0x3C3E3F40); Long(0x42434445); Long(0x4748494A); Long(0x4B4D4E4F);
287 Long(0x50515254); Long(0x55565758); Long(0x595A5B5C); Long(0x5E5F6061);
288 Long(0x62636465); Long(0x66676869); Long(0x6A6B6C6D); Long(0x6E6F7071);
289 Long(0x72737475); Long(0x76777879); Long(0x7A7B7C7D); Long(0x7E7F8081);
290 Long(0x81828384); Long(0x85868788); Long(0x898A8B8C); Long(0x8C8D8E8F);
291 Long(0x90919293); Long(0x94959596); Long(0x9798999A); Long(0x9B9B9C9D);
292 Long(0x9E9FA0A1); Long(0xA1A2A3A4); Long(0xA5A6A6A7); Long(0xA8A9AAAB);
293 Long(0xABACADAE); Long(0xAFB0B0B1); Long(0xB2B3B4B4); Long(0xB5B6B7B8);
294 Long(0xB8B9BABB); Long(0xBCBCBDBE); Long(0xBFC0C0C1); Long(0xC2C3C3C4);
295 Long(0xC5C6C7C7); Long(0xC8C9CACA); Long(0xCBCCCDCD); Long(0xCECFD0D0);
296 Long(0xD1D2D3D3); Long(0xD4D5D6D6); Long(0xD7D8D9D9); Long(0xDADBDCDC);
297 Long(0xDDDEDFDF); Long(0xE0E1E1E2); Long(0xE3E4E4E5); Long(0xE6E7E7E8);
298 Long(0xE9E9EAEB); Long(0xECECEDEE); Long(0xEEEFF0F1); Long(0xF1F2F3F3);
299 Long(0xF4F5F5F6); Long(0xF7F8F8F9); Long(0xFAFAFBFC); Long(0xFCFDFEFF);
300
301 gammaDir = p; // Gamma directory
302 Offs(0x80, defaultGamma);
303 EndOfList();
304
305 vidModeParms1 = VModeParms(VideoMonitor.mode, VDEPTH_1BIT);
306 vidModeParms2 = VModeParms(VideoMonitor.mode, VDEPTH_2BIT);
307 vidModeParms4 = VModeParms(VideoMonitor.mode, VDEPTH_4BIT);
308 vidModeParms8 = VModeParms(VideoMonitor.mode, VDEPTH_8BIT);
309 vidModeParms16 = VModeParms(VideoMonitor.mode, VDEPTH_16BIT);
310 vidModeParms32 = VModeParms(VideoMonitor.mode, VDEPTH_32BIT);
311
312 vidMode1 = VModeDesc(vidModeParms1, false);
313 vidMode2 = VModeDesc(vidModeParms2, false);
314 vidMode4 = VModeDesc(vidModeParms4, false);
315 vidMode8 = VModeDesc(vidModeParms8, false);
316 vidMode16 = VModeDesc(vidModeParms16, true);
317 vidMode32 = VModeDesc(vidModeParms32, true);
318
319 sRsrcVideo = p;
320 Offs(0x01, videoType); // Video type descriptor
321 Offs(0x02, videoName); // Driver name
322 Offs(0x04, vidDrvrDir); // Driver directory
323 Rsrc(0x08, 0x4232); // Hardware device ID ('B2')
324 Offs(0x0a, minorBase); // Frame buffer base
325 Offs(0x0b, minorLength); // Frame buffer length
326 Offs(0x40, gammaDir); // Gamma directory
327 Rsrc(0x7d, 6); // Video attributes: Default to color, built-in
328 if (video_has_depth(VDEPTH_1BIT))
329 Offs(DepthToAppleMode(VDEPTH_1BIT), vidMode1); // Video mode parameters for 1 bit
330 if (video_has_depth(VDEPTH_2BIT))
331 Offs(DepthToAppleMode(VDEPTH_2BIT), vidMode2); // Video mode parameters for 2 bit
332 if (video_has_depth(VDEPTH_4BIT))
333 Offs(DepthToAppleMode(VDEPTH_4BIT), vidMode4); // Video mode parameters for 4 bit
334 if (video_has_depth(VDEPTH_8BIT))
335 Offs(DepthToAppleMode(VDEPTH_8BIT), vidMode8); // Video mode parameters for 8 bit
336 if (video_has_depth(VDEPTH_16BIT))
337 Offs(DepthToAppleMode(VDEPTH_16BIT), vidMode16); // Video mode parameters for 16 bit
338 if (video_has_depth(VDEPTH_32BIT))
339 Offs(DepthToAppleMode(VDEPTH_32BIT), vidMode32); // Video mode parameters for 32 bit
340 EndOfList();
341
342 // CPU sResource
343 cpuType = p; // Literals
344 Word(10); Word(3); Word(0); Word(24); // CPU 68020
345 cpuName = p;
346 String("CPU_68020");
347 cpuMajor = p;
348 Long(0); Long(0x7fffffff);
349 cpuMinor = p;
350 Long(0xf0800000); Long(0xf0ffffff);
351
352 sRsrcCPU = p;
353 Offs(0x01, cpuType); // Type descriptor
354 Offs(0x02, cpuName); // CPU name
355 Offs(0x81, cpuMajor); // Major RAM space
356 Offs(0x82, cpuMinor); // Minor RAM space
357 EndOfList();
358
359 // Ethernet sResource
360 etherType = p; // Literals
361 Word(4); Word(1); Word(1); Word(0x4232); // Network Ethernet Apple 'B2'
362 etherName = p;
363 String("Network_Ethernet_Apple_BasiliskII");
364
365 etherDrvr = p; // Video driver
366 Long(0x88); // Length
367 Word(0x4400); Word(0); Word(0); Word(0);
368 Word(0x4a); // Open offset
369 Word(0x4e); // Prime offset
370 Word(0x52); // Control offset
371 Word(0x4e); // Status offset
372 Word(0x82); // Close offset
373 PString(".ENET");
374 Word(0x0111); Word(0x8000); // Driver version
375 Word(0);
376 PString("1.1.1 ");
377 PString("Basilisk II Ethernet Network Driver");
378 Word(M68K_EMUL_OP_ETHER_OPEN); // Open()
379 Word(0x4e75);
380 Word(0x70ef); // Prime()/Status()
381 Word(0x600c);
382 Word(M68K_EMUL_OP_ETHER_CONTROL); // Control()
383 Word(0x0c68); Word(0x0001); Word(0x001a);
384 Word(0x6602);
385 Word(0x4e75);
386 Word(0x3228); Word(0x0006); // IOReturn
387 Word(0x0801); Word(0x0009);
388 Word(0x670c);
389 Word(0x4a40);
390 Word(0x6f02);
391 Word(0x4240);
392 Word(0x3140); Word(0x0010);
393 Word(0x4e75);
394 Word(0x4a40);
395 Word(0x6f04);
396 Word(0x4240);
397 Word(0x4e75);
398 Word(0x2f38); Word(0x08fc);
399 Word(0x4e75);
400 Word(0x70e8); // Close()
401 Word(0x4e75);
402
403 etherDrvrDir = p; // Driver directory
404 Offs(0x02, etherDrvr); // sMacOS68020
405 EndOfList();
406
407 sRsrcEther = p;
408 Offs(0x01, etherType); // Type descriptor
409 Offs(0x02, etherName); // Driver name
410 Offs(0x04, etherDrvrDir); // Driver directory
411 Rsrc(0x07, 2); // Flags: OpenAtStart
412 Rsrc(0x08, 0x4232); // Hardware device ID ('B2')
413 EndOfList();
414
415 // sResource directory
416 sRsrcDir = p;
417 Offs(0x01, sRsrcBoard);
418 Offs(0x80, sRsrcVideo);
419 Offs(0xf0, sRsrcCPU);
420 Offs(0xf1, sRsrcEther);
421 EndOfList();
422
423 // Format/header block
424 Offs(0, sRsrcDir); // sResource directory
425 Long(p + 16); // Length of declaration data
426 Long(0); // CRC (calculated later)
427 Word(0x0101); // Rev. level, format
428 Long(0x5a932bc7); // Test pattern
429 Word(0x000f); // Byte lanes
430
431 // Copy slot ROM to Mac ROM
432 slot_rom_size = p;
433 memcpy(ROMBaseHost + ROMSize - slot_rom_size, srom, slot_rom_size);
434
435 // Calculate checksum
436 ChecksumSlotROM();
437 return true;
438 }
439
440 /*
441 * Calculate slot ROM checksum (in-place)
442 */
443
444 void ChecksumSlotROM(void)
445 {
446 // Calculate CRC
447 uint8 *p = ROMBaseHost + ROMSize - slot_rom_size;
448 p[slot_rom_size - 12] = 0;
449 p[slot_rom_size - 11] = 0;
450 p[slot_rom_size - 10] = 0;
451 p[slot_rom_size - 9] = 0;
452 uint32 crc = 0;
453 for (uint32 i=0; i<slot_rom_size; i++) {
454 crc = (crc << 1) | (crc >> 31);
455 crc += p[i];
456 }
457 p[slot_rom_size - 12] = crc >> 24;
458 p[slot_rom_size - 11] = crc >> 16;
459 p[slot_rom_size - 10] = crc >> 8;
460 p[slot_rom_size - 9] = crc;
461 }