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amigahw.h
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1 /*
2 ** asm-m68k/amigahw.h -- This header defines some macros and pointers for
3 ** the various Amiga custom hardware registers.
4 ** The naming conventions used here conform to those
5 ** used in the Amiga Hardware Reference Manual, 3rd Edition
6 **
7 ** Copyright 1992 by Greg Harp
8 **
9 ** This file is subject to the terms and conditions of the GNU General Public
10 ** License. See the file COPYING in the main directory of this archive
11 ** for more details.
12 **
13 ** Created: 9/24/92 by Greg Harp
14 */
15 
16 #ifndef _M68K_AMIGAHW_H
17 #define _M68K_AMIGAHW_H
18 
19 #include <linux/ioport.h>
20 
21  /*
22  * Different Amiga models
23  */
24 
25 #define AMI_UNKNOWN (0)
26 #define AMI_500 (1)
27 #define AMI_500PLUS (2)
28 #define AMI_600 (3)
29 #define AMI_1000 (4)
30 #define AMI_1200 (5)
31 #define AMI_2000 (6)
32 #define AMI_2500 (7)
33 #define AMI_3000 (8)
34 #define AMI_3000T (9)
35 #define AMI_3000PLUS (10)
36 #define AMI_4000 (11)
37 #define AMI_4000T (12)
38 #define AMI_CDTV (13)
39 #define AMI_CD32 (14)
40 #define AMI_DRACO (15)
41 
42 
43  /*
44  * Chipsets
45  */
46 
47 extern unsigned long amiga_chipset;
48 
49 #define CS_STONEAGE (0)
50 #define CS_OCS (1)
51 #define CS_ECS (2)
52 #define CS_AGA (3)
53 
54 
55  /*
56  * Miscellaneous
57  */
58 
59 extern unsigned long amiga_eclock; /* 700 kHz E Peripheral Clock */
60 extern unsigned long amiga_colorclock; /* 3.5 MHz Color Clock */
61 extern unsigned long amiga_chip_size; /* Chip RAM Size (bytes) */
62 extern unsigned char amiga_vblank; /* VBLANK Frequency */
63 
64 
65 #define AMIGAHW_DECLARE(name) unsigned name : 1
66 #define AMIGAHW_SET(name) (amiga_hw_present.name = 1)
67 #define AMIGAHW_PRESENT(name) (amiga_hw_present.name)
68 
69 struct amiga_hw_present {
70  /* video hardware */
71  AMIGAHW_DECLARE(AMI_VIDEO); /* Amiga Video */
72  AMIGAHW_DECLARE(AMI_BLITTER); /* Amiga Blitter */
73  AMIGAHW_DECLARE(AMBER_FF); /* Amber Flicker Fixer */
74  /* sound hardware */
75  AMIGAHW_DECLARE(AMI_AUDIO); /* Amiga Audio */
76  /* disk storage interfaces */
77  AMIGAHW_DECLARE(AMI_FLOPPY); /* Amiga Floppy */
78  AMIGAHW_DECLARE(A3000_SCSI); /* SCSI (wd33c93, A3000 alike) */
79  AMIGAHW_DECLARE(A4000_SCSI); /* SCSI (ncr53c710, A4000T alike) */
80  AMIGAHW_DECLARE(A1200_IDE); /* IDE (A1200 alike) */
81  AMIGAHW_DECLARE(A4000_IDE); /* IDE (A4000 alike) */
82  AMIGAHW_DECLARE(CD_ROM); /* CD ROM drive */
83  /* other I/O hardware */
84  AMIGAHW_DECLARE(AMI_KEYBOARD); /* Amiga Keyboard */
85  AMIGAHW_DECLARE(AMI_MOUSE); /* Amiga Mouse */
86  AMIGAHW_DECLARE(AMI_SERIAL); /* Amiga Serial */
87  AMIGAHW_DECLARE(AMI_PARALLEL); /* Amiga Parallel */
88  /* real time clocks */
89  AMIGAHW_DECLARE(A2000_CLK); /* Hardware Clock (A2000 alike) */
90  AMIGAHW_DECLARE(A3000_CLK); /* Hardware Clock (A3000 alike) */
91  /* supporting hardware */
92  AMIGAHW_DECLARE(CHIP_RAM); /* Chip RAM */
93  AMIGAHW_DECLARE(PAULA); /* Paula (8364) */
94  AMIGAHW_DECLARE(DENISE); /* Denise (8362) */
95  AMIGAHW_DECLARE(DENISE_HR); /* Denise (8373) */
96  AMIGAHW_DECLARE(LISA); /* Lisa (8375) */
97  AMIGAHW_DECLARE(AGNUS_PAL); /* Normal/Fat PAL Agnus (8367/8371) */
98  AMIGAHW_DECLARE(AGNUS_NTSC); /* Normal/Fat NTSC Agnus (8361/8370) */
99  AMIGAHW_DECLARE(AGNUS_HR_PAL); /* Fat Hires PAL Agnus (8372) */
100  AMIGAHW_DECLARE(AGNUS_HR_NTSC); /* Fat Hires NTSC Agnus (8372) */
101  AMIGAHW_DECLARE(ALICE_PAL); /* PAL Alice (8374) */
102  AMIGAHW_DECLARE(ALICE_NTSC); /* NTSC Alice (8374) */
103  AMIGAHW_DECLARE(MAGIC_REKICK); /* A3000 Magic Hard Rekick */
104  AMIGAHW_DECLARE(PCMCIA); /* PCMCIA Slot */
105  AMIGAHW_DECLARE(ZORRO); /* Zorro AutoConfig */
106  AMIGAHW_DECLARE(ZORRO3); /* Zorro III */
107 };
108 
109 extern struct amiga_hw_present amiga_hw_present;
110 
111 struct CUSTOM {
112  unsigned short bltddat;
113  unsigned short dmaconr;
114  unsigned short vposr;
115  unsigned short vhposr;
116  unsigned short dskdatr;
117  unsigned short joy0dat;
118  unsigned short joy1dat;
119  unsigned short clxdat;
120  unsigned short adkconr;
121  unsigned short pot0dat;
122  unsigned short pot1dat;
123  unsigned short potgor;
124  unsigned short serdatr;
125  unsigned short dskbytr;
126  unsigned short intenar;
127  unsigned short intreqr;
128  unsigned char *dskptr;
129  unsigned short dsklen;
130  unsigned short dskdat;
131  unsigned short refptr;
132  unsigned short vposw;
133  unsigned short vhposw;
134  unsigned short copcon;
135  unsigned short serdat;
136  unsigned short serper;
137  unsigned short potgo;
138  unsigned short joytest;
139  unsigned short strequ;
140  unsigned short strvbl;
141  unsigned short strhor;
142  unsigned short strlong;
143  unsigned short bltcon0;
144  unsigned short bltcon1;
145  unsigned short bltafwm;
146  unsigned short bltalwm;
147  unsigned char *bltcpt;
148  unsigned char *bltbpt;
149  unsigned char *bltapt;
150  unsigned char *bltdpt;
151  unsigned short bltsize;
152  unsigned char pad2d;
153  unsigned char bltcon0l;
154  unsigned short bltsizv;
155  unsigned short bltsizh;
156  unsigned short bltcmod;
157  unsigned short bltbmod;
158  unsigned short bltamod;
159  unsigned short bltdmod;
160  unsigned short spare2[4];
161  unsigned short bltcdat;
162  unsigned short bltbdat;
163  unsigned short bltadat;
164  unsigned short spare3[3];
165  unsigned short deniseid;
166  unsigned short dsksync;
167  unsigned short *cop1lc;
168  unsigned short *cop2lc;
169  unsigned short copjmp1;
170  unsigned short copjmp2;
171  unsigned short copins;
172  unsigned short diwstrt;
173  unsigned short diwstop;
174  unsigned short ddfstrt;
175  unsigned short ddfstop;
176  unsigned short dmacon;
177  unsigned short clxcon;
178  unsigned short intena;
179  unsigned short intreq;
180  unsigned short adkcon;
181  struct {
182  unsigned short *audlc;
183  unsigned short audlen;
184  unsigned short audper;
185  unsigned short audvol;
186  unsigned short auddat;
187  unsigned short audspare[2];
188  } aud[4];
189  unsigned char *bplpt[8];
190  unsigned short bplcon0;
191  unsigned short bplcon1;
192  unsigned short bplcon2;
193  unsigned short bplcon3;
194  unsigned short bpl1mod;
195  unsigned short bpl2mod;
196  unsigned short bplcon4;
197  unsigned short clxcon2;
198  unsigned short bpldat[8];
199  unsigned char *sprpt[8];
200  struct {
201  unsigned short pos;
202  unsigned short ctl;
203  unsigned short dataa;
204  unsigned short datab;
205  } spr[8];
206  unsigned short color[32];
207  unsigned short htotal;
208  unsigned short hsstop;
209  unsigned short hbstrt;
210  unsigned short hbstop;
211  unsigned short vtotal;
212  unsigned short vsstop;
213  unsigned short vbstrt;
214  unsigned short vbstop;
215  unsigned short sprhstrt;
216  unsigned short sprhstop;
217  unsigned short bplhstrt;
218  unsigned short bplhstop;
219  unsigned short hhposw;
220  unsigned short hhposr;
221  unsigned short beamcon0;
222  unsigned short hsstrt;
223  unsigned short vsstrt;
224  unsigned short hcenter;
225  unsigned short diwhigh;
226  unsigned short spare4[11];
227  unsigned short fmode;
228 };
229 
230 /*
231  * DMA register bits
232  */
233 #define DMAF_SETCLR (0x8000)
234 #define DMAF_AUD0 (0x0001)
235 #define DMAF_AUD1 (0x0002)
236 #define DMAF_AUD2 (0x0004)
237 #define DMAF_AUD3 (0x0008)
238 #define DMAF_DISK (0x0010)
239 #define DMAF_SPRITE (0x0020)
240 #define DMAF_BLITTER (0x0040)
241 #define DMAF_COPPER (0x0080)
242 #define DMAF_RASTER (0x0100)
243 #define DMAF_MASTER (0x0200)
244 #define DMAF_BLITHOG (0x0400)
245 #define DMAF_BLTNZERO (0x2000)
246 #define DMAF_BLTDONE (0x4000)
247 #define DMAF_ALL (0x01FF)
248 
249 struct CIA {
250  unsigned char pra; char pad0[0xff];
251  unsigned char prb; char pad1[0xff];
252  unsigned char ddra; char pad2[0xff];
253  unsigned char ddrb; char pad3[0xff];
254  unsigned char talo; char pad4[0xff];
255  unsigned char tahi; char pad5[0xff];
256  unsigned char tblo; char pad6[0xff];
257  unsigned char tbhi; char pad7[0xff];
258  unsigned char todlo; char pad8[0xff];
259  unsigned char todmid; char pad9[0xff];
260  unsigned char todhi; char pada[0x1ff];
261  unsigned char sdr; char padb[0xff];
262  unsigned char icr; char padc[0xff];
263  unsigned char cra; char padd[0xff];
264  unsigned char crb; char pade[0xff];
265 };
266 
267 #define zTwoBase (0x80000000)
268 #define ZTWO_PADDR(x) (((unsigned long)(x))-zTwoBase)
269 #define ZTWO_VADDR(x) (((unsigned long)(x))+zTwoBase)
270 
271 #define CUSTOM_PHYSADDR (0xdff000)
272 #define amiga_custom ((*(volatile struct CUSTOM *)(zTwoBase+CUSTOM_PHYSADDR)))
273 
274 #define CIAA_PHYSADDR (0xbfe001)
275 #define CIAB_PHYSADDR (0xbfd000)
276 #define ciaa ((*(volatile struct CIA *)(zTwoBase + CIAA_PHYSADDR)))
277 #define ciab ((*(volatile struct CIA *)(zTwoBase + CIAB_PHYSADDR)))
278 
279 #define CHIP_PHYSADDR (0x000000)
280 
281 void amiga_chip_init (void);
282 void *amiga_chip_alloc(unsigned long size, const char *name);
283 void *amiga_chip_alloc_res(unsigned long size, struct resource *res);
284 void amiga_chip_free(void *ptr);
285 unsigned long amiga_chip_avail( void ); /*MILAN*/
286 extern volatile unsigned short amiga_audio_min_period;
287 
288 static inline void amifb_video_off(void)
289 {
290  if (amiga_chipset == CS_ECS || amiga_chipset == CS_AGA) {
291  /* program Denise/Lisa for a higher maximum play rate */
292  amiga_custom.htotal = 113; /* 31 kHz */
293  amiga_custom.vtotal = 223; /* 70 Hz */
294  amiga_custom.beamcon0 = 0x4390; /* HARDDIS, VAR{BEAM,VSY,HSY,CSY}EN */
295  /* suspend the monitor */
296  amiga_custom.hsstrt = amiga_custom.hsstop = 116;
297  amiga_custom.vsstrt = amiga_custom.vsstop = 226;
298  amiga_audio_min_period = 57;
299  }
300 }
301 
302 struct tod3000 {
303  unsigned int :28, second2:4; /* lower digit */
304  unsigned int :28, second1:4; /* upper digit */
305  unsigned int :28, minute2:4; /* lower digit */
306  unsigned int :28, minute1:4; /* upper digit */
307  unsigned int :28, hour2:4; /* lower digit */
308  unsigned int :28, hour1:4; /* upper digit */
309  unsigned int :28, weekday:4;
310  unsigned int :28, day2:4; /* lower digit */
311  unsigned int :28, day1:4; /* upper digit */
312  unsigned int :28, month2:4; /* lower digit */
313  unsigned int :28, month1:4; /* upper digit */
314  unsigned int :28, year2:4; /* lower digit */
315  unsigned int :28, year1:4; /* upper digit */
316  unsigned int :28, cntrl1:4; /* control-byte 1 */
317  unsigned int :28, cntrl2:4; /* control-byte 2 */
318  unsigned int :28, cntrl3:4; /* control-byte 3 */
319 };
320 #define TOD3000_CNTRL1_HOLD 0
321 #define TOD3000_CNTRL1_FREE 9
322 #define tod_3000 ((*(volatile struct tod3000 *)(zTwoBase+0xDC0000)))
323 
324 struct tod2000 {
325  unsigned int :28, second2:4; /* lower digit */
326  unsigned int :28, second1:4; /* upper digit */
327  unsigned int :28, minute2:4; /* lower digit */
328  unsigned int :28, minute1:4; /* upper digit */
329  unsigned int :28, hour2:4; /* lower digit */
330  unsigned int :28, hour1:4; /* upper digit */
331  unsigned int :28, day2:4; /* lower digit */
332  unsigned int :28, day1:4; /* upper digit */
333  unsigned int :28, month2:4; /* lower digit */
334  unsigned int :28, month1:4; /* upper digit */
335  unsigned int :28, year2:4; /* lower digit */
336  unsigned int :28, year1:4; /* upper digit */
337  unsigned int :28, weekday:4;
338  unsigned int :28, cntrl1:4; /* control-byte 1 */
339  unsigned int :28, cntrl2:4; /* control-byte 2 */
340  unsigned int :28, cntrl3:4; /* control-byte 3 */
341 };
342 
343 #define TOD2000_CNTRL1_HOLD (1<<0)
344 #define TOD2000_CNTRL1_BUSY (1<<1)
345 #define TOD2000_CNTRL3_24HMODE (1<<2)
346 #define TOD2000_HOUR1_PM (1<<2)
347 #define tod_2000 ((*(volatile struct tod2000 *)(zTwoBase+0xDC0000)))
348 
349 #endif /* _M68K_AMIGAHW_H */
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