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root/cebix/BasiliskII/src/slot_rom.cpp
Revision: 1.9
Committed: 2001-06-29T12:51:20Z (23 years, 4 months ago) by cebix
Branch: MAIN
Changes since 1.8: +30 -11 lines
Log Message:
slot ROM checksum is recalculated after patching during resolution switch

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * slot_rom.cpp - Slot declaration ROM
3     *
4 cebix 1.4 * Basilisk II (C) 1996-2001 Christian Bauer
5 cebix 1.1 *
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 cebix 1.9 // Length of slot ROM
46     static int slot_rom_size = 0;
47    
48 cebix 1.1
49 cebix 1.6 // Check whether a mode with the specified depth exists
50     static bool has_depth(video_depth depth)
51     {
52 gbeauche 1.8 std::vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
53 cebix 1.6 while (i != end) {
54     if (i->depth == depth)
55     return true;
56     ++i;
57     }
58     return false;
59     }
60    
61    
62 cebix 1.1 /*
63     * Construct slot declaration ROM and copy it into the Mac ROM (must be called after VideoInit())
64     */
65    
66     static void Offs(uint8 type, uint32 ptr)
67     {
68     uint32 offs = ptr - p;
69     srom[p++] = type;
70     srom[p++] = offs >> 16;
71     srom[p++] = offs >> 8;
72     srom[p++] = offs;
73     }
74    
75     static void Rsrc(uint8 type, uint32 data)
76     {
77     srom[p++] = type;
78     srom[p++] = data >> 16;
79     srom[p++] = data >> 8;
80     srom[p++] = data;
81     }
82    
83     static void EndOfList(void)
84     {
85     srom[p++] = 0xff;
86     srom[p++] = 0;
87     srom[p++] = 0;
88     srom[p++] = 0;
89     }
90    
91     static void Long(uint32 data)
92     {
93     srom[p++] = data >> 24;
94     srom[p++] = data >> 16;
95     srom[p++] = data >> 8;
96     srom[p++] = data;
97     }
98    
99     static void Word(uint16 data)
100     {
101     srom[p++] = data >> 8;
102     srom[p++] = data;
103     }
104    
105     static void String(char *str)
106     {
107     while ((srom[p++] = *str++) != 0) ;
108     if (p & 1)
109     srom[p++] = 0;
110     }
111    
112     static void PString(char *str)
113     {
114     srom[p++] = strlen(str);
115     while ((srom[p++] = *str++) != 0) ;
116     p--;
117     if (p & 1)
118     srom[p++] = 0;
119     }
120    
121 cebix 1.5 static uint32 VModeParms(uint32 width, uint32 height, uint32 bytes_per_row, video_depth depth)
122     {
123     uint32 ret = p;
124 cebix 1.7 Long(50); // Length
125     Long(0); // Base offset
126     Word(bytes_per_row); // Row bytes
127     Word(0); // Bounds
128 cebix 1.5 Word(0);
129     Word(height);
130     Word(width);
131 cebix 1.7 Word(0); // Version
132     Word(0); // Pack type
133     Long(0); // Pack size
134     Long(0x00480000); // HRes
135     Long(0x00480000); // VRes
136 cebix 1.5 switch (depth) {
137     case VDEPTH_1BIT:
138 cebix 1.7 Word(0); // Pixel type (indirect)
139     Word(1); // Pixel size
140     Word(1); // CmpCount
141     Word(1); // CmpSize
142 cebix 1.5 break;
143     case VDEPTH_2BIT:
144 cebix 1.7 Word(0); // Pixel type (indirect)
145     Word(2); // Pixel size
146     Word(1); // CmpCount
147     Word(2); // CmpSize
148 cebix 1.5 break;
149     case VDEPTH_4BIT:
150 cebix 1.7 Word(0); // Pixel type (indirect)
151     Word(4); // Pixel size
152     Word(1); // CmpCount
153     Word(4); // CmpSize
154 cebix 1.5 break;
155     case VDEPTH_8BIT:
156 cebix 1.7 Word(0); // Pixel type (indirect)
157     Word(8); // Pixel size
158     Word(1); // CmpCount
159     Word(8); // CmpSize
160 cebix 1.5 break;
161     case VDEPTH_16BIT:
162 cebix 1.7 Word(16); // Pixel type (direct)
163     Word(16); // Pixel size
164     Word(3); // CmpCount
165     Word(5); // CmpSize
166 cebix 1.5 break;
167     case VDEPTH_32BIT:
168 cebix 1.7 Word(16); // Pixel type (direct)
169     Word(32); // Pixel size
170     Word(3); // CmpCount
171     Word(8); // CmpSize
172 cebix 1.5 break;
173     }
174 cebix 1.7 Long(0); // Plane size
175     Long(0); // Reserved
176 cebix 1.5 return ret;
177     }
178    
179     static uint32 VModeDesc(uint32 params, bool direct)
180     {
181     uint32 ret = p;
182     Offs(0x01, params); // Video parameters
183     Rsrc(0x03, 1); // Page count
184     Rsrc(0x04, direct ? 2 : 0); // Device type
185     EndOfList();
186     return ret;
187     }
188    
189 cebix 1.1 bool InstallSlotROM(void)
190     {
191     uint32 boardType, boardName, vendorID, revLevel, partNum, date;
192     uint32 vendorInfo, sRsrcBoard;
193    
194     uint32 videoType, videoName, minorBase, minorLength, videoDrvr, vidDrvrDir;
195 cebix 1.5 uint32 defaultGamma, gammaDir, sRsrcVideo;
196     uint32 vidModeParms1, vidModeParms2, vidModeParms4, vidModeParms8, vidModeParms16, vidModeParms32;
197     uint32 vidMode1, vidMode2, vidMode4, vidMode8, vidMode16, vidMode32;
198 cebix 1.1
199     uint32 cpuType, cpuName, cpuMajor, cpuMinor, sRsrcCPU;
200    
201     uint32 etherType, etherName, etherDrvr, etherDrvrDir, sRsrcEther;
202    
203     uint32 sRsrcDir;
204    
205     char str[256];
206     p = 0;
207    
208     // Board sResource
209     boardType = p; // Literals
210     Word(1); Word(0); Word(0); Word(0); // Board sResource
211     boardName = p;
212     String("Basilisk II Slot ROM");
213     vendorID = p;
214     String("Christian Bauer");
215     revLevel = p;
216     sprintf(str, "V%d.%d", VERSION_MAJOR, VERSION_MINOR);
217     String(str);
218     partNum = p;
219     String("BasiliskII");
220     date = p;
221     String(__DATE__);
222    
223     vendorInfo = p; // Vendor Info
224     Offs(0x01, vendorID); // Vendor ID
225     Offs(0x03, revLevel); // Revision level
226     Offs(0x04, partNum); // Part number
227     Offs(0x05, date); // ROM build date
228     EndOfList();
229    
230     sRsrcBoard = p;
231     Offs(0x01, boardType); // Board descriptor
232     Offs(0x02, boardName); // Board name
233     Rsrc(0x20, 0x4232); // Board ID ('B2')
234     Offs(0x24, vendorInfo); // Vendor Info
235     EndOfList();
236    
237 cebix 1.5 // Video sResource for default mode
238 cebix 1.1 videoType = p; // Literals
239 cebix 1.7 Word(3); Word(1); Word(1); Word(0x4232); // Display Video Apple 'B2'
240 cebix 1.1 videoName = p;
241     String("Display_Video_Apple_Basilisk");
242     minorBase = p;
243 cebix 1.7 Long(VideoMonitor.mac_frame_base); // Frame buffer base
244 cebix 1.1 minorLength = p;
245 cebix 1.7 Long(0); // Frame buffer size (unspecified)
246 cebix 1.1
247     videoDrvr = p; // Video driver
248     Long(0x72); // Length
249     Word(0x4c00); Word(0); Word(0); Word(0);
250     Word(0x32); // Open offset
251     Word(0x36); // Prime offset
252     Word(0x3a); // Control offset
253     Word(0x46); // Status offset
254     Word(0x6c); // Close offset
255     PString(".Display_Video_Apple_Basilisk");
256     Word(1); // Driver version
257     Word(M68K_EMUL_OP_VIDEO_OPEN); // Open()
258     Word(0x4e75);
259     Word(0x70ff); // Prime()
260     Word(0x600e);
261     Word(M68K_EMUL_OP_VIDEO_CONTROL); // Control()
262     Word(0x0c68); Word(0x0001); Word(0x001a);
263     Word(0x6604);
264     Word(0x4e75);
265     Word(M68K_EMUL_OP_VIDEO_STATUS); // Status()
266     Word(0x3228); Word(0x0006); // IOReturn
267     Word(0x0801); Word(0x0009);
268     Word(0x670c);
269     Word(0x4a40);
270     Word(0x6f02);
271     Word(0x4240);
272     Word(0x3140); Word(0x0010);
273     Word(0x4e75);
274     Word(0x4a40);
275     Word(0x6f04);
276     Word(0x4240);
277     Word(0x4e75);
278     Word(0x2f38); Word(0x08fc);
279     Word(0x4e75);
280     Word(0x70e8); // Close()
281     Word(0x4e75);
282    
283     vidDrvrDir = p; // Driver directory
284     Offs(0x02, videoDrvr); // sMacOS68020
285     EndOfList();
286    
287     defaultGamma = p; // Gamma table
288     Long(38 + 0x100); // Length
289     Word(0x2000); // Resource ID
290     String("Mac HiRes Std Gamma");
291     Word(0); // Version
292     Word(0); // Type
293     Word(0); // FormulaSize
294     Word(1); // ChanCnt
295     Word(0x0100); // DataCnt
296     Word(8); // ChanWidth
297     Long(0x0005090B); Long(0x0E101315); Long(0x17191B1D); Long(0x1E202224);
298     Long(0x2527282A); Long(0x2C2D2F30); Long(0x31333436); Long(0x37383A3B);
299     Long(0x3C3E3F40); Long(0x42434445); Long(0x4748494A); Long(0x4B4D4E4F);
300     Long(0x50515254); Long(0x55565758); Long(0x595A5B5C); Long(0x5E5F6061);
301     Long(0x62636465); Long(0x66676869); Long(0x6A6B6C6D); Long(0x6E6F7071);
302     Long(0x72737475); Long(0x76777879); Long(0x7A7B7C7D); Long(0x7E7F8081);
303     Long(0x81828384); Long(0x85868788); Long(0x898A8B8C); Long(0x8C8D8E8F);
304     Long(0x90919293); Long(0x94959596); Long(0x9798999A); Long(0x9B9B9C9D);
305     Long(0x9E9FA0A1); Long(0xA1A2A3A4); Long(0xA5A6A6A7); Long(0xA8A9AAAB);
306     Long(0xABACADAE); Long(0xAFB0B0B1); Long(0xB2B3B4B4); Long(0xB5B6B7B8);
307     Long(0xB8B9BABB); Long(0xBCBCBDBE); Long(0xBFC0C0C1); Long(0xC2C3C3C4);
308     Long(0xC5C6C7C7); Long(0xC8C9CACA); Long(0xCBCCCDCD); Long(0xCECFD0D0);
309     Long(0xD1D2D3D3); Long(0xD4D5D6D6); Long(0xD7D8D9D9); Long(0xDADBDCDC);
310     Long(0xDDDEDFDF); Long(0xE0E1E1E2); Long(0xE3E4E4E5); Long(0xE6E7E7E8);
311     Long(0xE9E9EAEB); Long(0xECECEDEE); Long(0xEEEFF0F1); Long(0xF1F2F3F3);
312     Long(0xF4F5F5F6); Long(0xF7F8F8F9); Long(0xFAFAFBFC); Long(0xFCFDFEFF);
313    
314     gammaDir = p; // Gamma directory
315     Offs(0x80, defaultGamma);
316     EndOfList();
317    
318 cebix 1.5 vidModeParms1 = VModeParms(VideoMonitor.mode.x, VideoMonitor.mode.y, VideoMonitor.mode.bytes_per_row, VDEPTH_1BIT);
319     vidModeParms2 = VModeParms(VideoMonitor.mode.x, VideoMonitor.mode.y, VideoMonitor.mode.bytes_per_row, VDEPTH_2BIT);
320     vidModeParms4 = VModeParms(VideoMonitor.mode.x, VideoMonitor.mode.y, VideoMonitor.mode.bytes_per_row, VDEPTH_4BIT);
321     vidModeParms8 = VModeParms(VideoMonitor.mode.x, VideoMonitor.mode.y, VideoMonitor.mode.bytes_per_row, VDEPTH_8BIT);
322     vidModeParms16 = VModeParms(VideoMonitor.mode.x, VideoMonitor.mode.y, VideoMonitor.mode.bytes_per_row, VDEPTH_16BIT);
323     vidModeParms32 = VModeParms(VideoMonitor.mode.x, VideoMonitor.mode.y, VideoMonitor.mode.bytes_per_row, VDEPTH_32BIT);
324    
325     vidMode1 = VModeDesc(vidModeParms1, false);
326     vidMode2 = VModeDesc(vidModeParms2, false);
327     vidMode4 = VModeDesc(vidModeParms4, false);
328     vidMode8 = VModeDesc(vidModeParms8, false);
329     vidMode16 = VModeDesc(vidModeParms16, true);
330     vidMode32 = VModeDesc(vidModeParms32, true);
331 cebix 1.1
332     sRsrcVideo = p;
333     Offs(0x01, videoType); // Video type descriptor
334     Offs(0x02, videoName); // Driver name
335     Offs(0x04, vidDrvrDir); // Driver directory
336     Rsrc(0x08, 0x4232); // Hardware device ID ('B2')
337     Offs(0x0a, minorBase); // Frame buffer base
338     Offs(0x0b, minorLength); // Frame buffer length
339     Offs(0x40, gammaDir); // Gamma directory
340     Rsrc(0x7d, 6); // Video attributes: Default to color, built-in
341 cebix 1.6 if (has_depth(VDEPTH_1BIT))
342     Offs(0x80, vidMode1); // Video mode parameters for 1 bit
343     if (has_depth(VDEPTH_2BIT))
344     Offs(0x81, vidMode2); // Video mode parameters for 2 bit
345     if (has_depth(VDEPTH_4BIT))
346     Offs(0x82, vidMode4); // Video mode parameters for 4 bit
347     if (has_depth(VDEPTH_8BIT))
348     Offs(0x83, vidMode8); // Video mode parameters for 8 bit
349     if (has_depth(VDEPTH_16BIT))
350     Offs(0x84, vidMode16); // Video mode parameters for 16 bit
351     if (has_depth(VDEPTH_32BIT))
352     Offs(0x85, vidMode32); // Video mode parameters for 32 bit
353 cebix 1.1 EndOfList();
354    
355     // CPU sResource
356     cpuType = p; // Literals
357     Word(10); Word(3); Word(0); Word(24); // CPU 68020
358     cpuName = p;
359     String("CPU_68020");
360     cpuMajor = p;
361     Long(0); Long(0x7fffffff);
362     cpuMinor = p;
363     Long(0xf0800000); Long(0xf0ffffff);
364    
365     sRsrcCPU = p;
366     Offs(0x01, cpuType); // Type descriptor
367     Offs(0x02, cpuName); // CPU name
368     Offs(0x81, cpuMajor); // Major RAM space
369     Offs(0x82, cpuMinor); // Minor RAM space
370     EndOfList();
371    
372     // Ethernet sResource
373     etherType = p; // Literals
374     Word(4); Word(1); Word(1); Word(0x4232); // Network Ethernet Apple 'B2'
375     etherName = p;
376     String("Network_Ethernet_Apple_BasiliskII");
377    
378     etherDrvr = p; // Video driver
379     Long(0x88); // Length
380     Word(0x4400); Word(0); Word(0); Word(0);
381     Word(0x4a); // Open offset
382     Word(0x4e); // Prime offset
383     Word(0x52); // Control offset
384     Word(0x4e); // Status offset
385     Word(0x82); // Close offset
386     PString(".ENET");
387     Word(0x0111); Word(0x8000); // Driver version
388     Word(0);
389     PString("1.1.1 ");
390     PString("Basilisk II Ethernet Network Driver");
391     Word(M68K_EMUL_OP_ETHER_OPEN); // Open()
392     Word(0x4e75);
393     Word(0x70ef); // Prime()/Status()
394     Word(0x600c);
395     Word(M68K_EMUL_OP_ETHER_CONTROL); // Control()
396     Word(0x0c68); Word(0x0001); Word(0x001a);
397     Word(0x6602);
398     Word(0x4e75);
399     Word(0x3228); Word(0x0006); // IOReturn
400     Word(0x0801); Word(0x0009);
401     Word(0x670c);
402     Word(0x4a40);
403     Word(0x6f02);
404     Word(0x4240);
405     Word(0x3140); Word(0x0010);
406     Word(0x4e75);
407     Word(0x4a40);
408     Word(0x6f04);
409     Word(0x4240);
410     Word(0x4e75);
411     Word(0x2f38); Word(0x08fc);
412     Word(0x4e75);
413     Word(0x70e8); // Close()
414     Word(0x4e75);
415    
416     etherDrvrDir = p; // Driver directory
417     Offs(0x02, etherDrvr); // sMacOS68020
418     EndOfList();
419    
420     sRsrcEther = p;
421     Offs(0x01, etherType); // Type descriptor
422     Offs(0x02, etherName); // Driver name
423     Offs(0x04, etherDrvrDir); // Driver directory
424     Rsrc(0x07, 2); // Flags: OpenAtStart
425     Rsrc(0x08, 0x4232); // Hardware device ID ('B2')
426     EndOfList();
427    
428     // sResource directory
429     sRsrcDir = p;
430     Offs(0x01, sRsrcBoard);
431     Offs(0x80, sRsrcVideo);
432     Offs(0xf0, sRsrcCPU);
433     Offs(0xf1, sRsrcEther);
434     EndOfList();
435    
436     // Format/header block
437     Offs(0, sRsrcDir); // sResource directory
438     Long(p + 16); // Length of declaration data
439 cebix 1.9 Long(0); // CRC (calculated later)
440 cebix 1.1 Word(0x0101); // Rev. level, format
441     Long(0x5a932bc7); // Test pattern
442     Word(0x000f); // Byte lanes
443    
444 cebix 1.9 // Copy slot ROM to Mac ROM
445     slot_rom_size = p;
446     memcpy(ROMBaseHost + ROMSize - slot_rom_size, srom, slot_rom_size);
447    
448     // Calculate checksum
449     ChecksumSlotROM();
450     return true;
451     }
452    
453     /*
454     * Calculate slot ROM checksum (in-place)
455     */
456    
457     void ChecksumSlotROM(void)
458     {
459 cebix 1.1 // Calculate CRC
460 cebix 1.9 uint8 *p = ROMBaseHost + ROMSize - slot_rom_size;
461     p[slot_rom_size - 12] = 0;
462     p[slot_rom_size - 11] = 0;
463     p[slot_rom_size - 10] = 0;
464     p[slot_rom_size - 9] = 0;
465 cebix 1.1 uint32 crc = 0;
466 cebix 1.9 for (uint32 i=0; i<slot_rom_size; i++) {
467 cebix 1.1 crc = (crc << 1) | (crc >> 31);
468 cebix 1.9 crc += p[i];
469 cebix 1.1 }
470 cebix 1.9 p[slot_rom_size - 12] = crc >> 24;
471     p[slot_rom_size - 11] = crc >> 16;
472     p[slot_rom_size - 10] = crc >> 8;
473     p[slot_rom_size - 9] = crc;
474 cebix 1.1 }