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 extern unsigned long amiga_model;
26
27 #define AMI_UNKNOWN (0)
28 #define AMI_500 (1)
29 #define AMI_500PLUS (2)
30 #define AMI_600 (3)
31 #define AMI_1000 (4)
32 #define AMI_1200 (5)
33 #define AMI_2000 (6)
34 #define AMI_2500 (7)
35 #define AMI_3000 (8)
36 #define AMI_3000T (9)
37 #define AMI_3000PLUS (10)
38 #define AMI_4000 (11)
39 #define AMI_4000T (12)
40 #define AMI_CDTV (13)
41 #define AMI_CD32 (14)
42 #define AMI_DRACO (15)
43
44
45 /*
46 * Chipsets
47 */
48
49 extern unsigned long amiga_chipset;
50
51 #define CS_STONEAGE (0)
52 #define CS_OCS (1)
53 #define CS_ECS (2)
54 #define CS_AGA (3)
55
56
57 /*
58 * Miscellaneous
59 */
60
61 extern unsigned long amiga_eclock; /* 700 kHz E Peripheral Clock */
62 extern unsigned long amiga_masterclock; /* 28 MHz Master Clock */
63 extern unsigned long amiga_colorclock; /* 3.5 MHz Color Clock */
64 extern unsigned long amiga_chip_size; /* Chip RAM Size (bytes) */
65 extern unsigned char amiga_vblank; /* VBLANK Frequency */
66 extern unsigned char amiga_psfreq; /* Power Supply Frequency */
67
68
69 #define AMIGAHW_DECLARE(name) unsigned name : 1
70 #define AMIGAHW_SET(name) (amiga_hw_present.name = 1)
71 #define AMIGAHW_PRESENT(name) (amiga_hw_present.name)
72
73 struct amiga_hw_present {
74 /* video hardware */
75 AMIGAHW_DECLARE(AMI_VIDEO); /* Amiga Video */
76 AMIGAHW_DECLARE(AMI_BLITTER); /* Amiga Blitter */
77 AMIGAHW_DECLARE(AMBER_FF); /* Amber Flicker Fixer */
78 /* sound hardware */
79 AMIGAHW_DECLARE(AMI_AUDIO); /* Amiga Audio */
80 /* disk storage interfaces */
81 AMIGAHW_DECLARE(AMI_FLOPPY); /* Amiga Floppy */
82 AMIGAHW_DECLARE(A3000_SCSI); /* SCSI (wd33c93, A3000 alike) */
83 AMIGAHW_DECLARE(A4000_SCSI); /* SCSI (ncr53c710, A4000T alike) */
84 AMIGAHW_DECLARE(A1200_IDE); /* IDE (A1200 alike) */
85 AMIGAHW_DECLARE(A4000_IDE); /* IDE (A4000 alike) */
86 AMIGAHW_DECLARE(CD_ROM); /* CD ROM drive */
87 /* other I/O hardware */
88 AMIGAHW_DECLARE(AMI_KEYBOARD); /* Amiga Keyboard */
89 AMIGAHW_DECLARE(AMI_MOUSE); /* Amiga Mouse */
90 AMIGAHW_DECLARE(AMI_SERIAL); /* Amiga Serial */
91 AMIGAHW_DECLARE(AMI_PARALLEL); /* Amiga Parallel */
92 /* real time clocks */
93 AMIGAHW_DECLARE(A2000_CLK); /* Hardware Clock (A2000 alike) */
94 AMIGAHW_DECLARE(A3000_CLK); /* Hardware Clock (A3000 alike) */
95 /* supporting hardware */
96 AMIGAHW_DECLARE(CHIP_RAM); /* Chip RAM */
97 AMIGAHW_DECLARE(PAULA); /* Paula (8364) */
98 AMIGAHW_DECLARE(DENISE); /* Denise (8362) */
99 AMIGAHW_DECLARE(DENISE_HR); /* Denise (8373) */
100 AMIGAHW_DECLARE(LISA); /* Lisa (8375) */
101 AMIGAHW_DECLARE(AGNUS_PAL); /* Normal/Fat PAL Agnus (8367/8371) */
102 AMIGAHW_DECLARE(AGNUS_NTSC); /* Normal/Fat NTSC Agnus (8361/8370) */
103 AMIGAHW_DECLARE(AGNUS_HR_PAL); /* Fat Hires PAL Agnus (8372) */
104 AMIGAHW_DECLARE(AGNUS_HR_NTSC); /* Fat Hires NTSC Agnus (8372) */
105 AMIGAHW_DECLARE(ALICE_PAL); /* PAL Alice (8374) */
106 AMIGAHW_DECLARE(ALICE_NTSC); /* NTSC Alice (8374) */
107 AMIGAHW_DECLARE(MAGIC_REKICK); /* A3000 Magic Hard Rekick */
108 AMIGAHW_DECLARE(PCMCIA); /* PCMCIA Slot */
109 AMIGAHW_DECLARE(GG2_ISA); /* GG2 Zorro2ISA Bridge */
110 AMIGAHW_DECLARE(ZORRO); /* Zorro AutoConfig */
111 AMIGAHW_DECLARE(ZORRO3); /* Zorro III */
112 };
113
114 extern struct amiga_hw_present amiga_hw_present;
115
116 struct CUSTOM {
117 unsigned short bltddat;
118 unsigned short dmaconr;
119 unsigned short vposr;
120 unsigned short vhposr;
121 unsigned short dskdatr;
122 unsigned short joy0dat;
123 unsigned short joy1dat;
124 unsigned short clxdat;
125 unsigned short adkconr;
126 unsigned short pot0dat;
127 unsigned short pot1dat;
128 unsigned short potgor;
129 unsigned short serdatr;
130 unsigned short dskbytr;
131 unsigned short intenar;
132 unsigned short intreqr;
133 unsigned char *dskptr;
134 unsigned short dsklen;
135 unsigned short dskdat;
136 unsigned short refptr;
137 unsigned short vposw;
138 unsigned short vhposw;
139 unsigned short copcon;
140 unsigned short serdat;
141 unsigned short serper;
142 unsigned short potgo;
143 unsigned short joytest;
144 unsigned short strequ;
145 unsigned short strvbl;
146 unsigned short strhor;
147 unsigned short strlong;
148 unsigned short bltcon0;
149 unsigned short bltcon1;
150 unsigned short bltafwm;
151 unsigned short bltalwm;
152 unsigned char *bltcpt;
153 unsigned char *bltbpt;
154 unsigned char *bltapt;
155 unsigned char *bltdpt;
156 unsigned short bltsize;
157 unsigned char pad2d;
158 unsigned char bltcon0l;
159 unsigned short bltsizv;
160 unsigned short bltsizh;
161 unsigned short bltcmod;
162 unsigned short bltbmod;
163 unsigned short bltamod;
164 unsigned short bltdmod;
165 unsigned short spare2[4];
166 unsigned short bltcdat;
167 unsigned short bltbdat;
168 unsigned short bltadat;
169 unsigned short spare3[3];
170 unsigned short deniseid;
171 unsigned short dsksync;
172 unsigned short *cop1lc;
173 unsigned short *cop2lc;
174 unsigned short copjmp1;
175 unsigned short copjmp2;
176 unsigned short copins;
177 unsigned short diwstrt;
178 unsigned short diwstop;
179 unsigned short ddfstrt;
180 unsigned short ddfstop;
181 unsigned short dmacon;
182 unsigned short clxcon;
183 unsigned short intena;
184 unsigned short intreq;
185 unsigned short adkcon;
186 struct {
187 unsigned short *audlc;
188 unsigned short audlen;
189 unsigned short audper;
190 unsigned short audvol;
191 unsigned short auddat;
192 unsigned short audspare[2];
193 } aud[4];
194 unsigned char *bplpt[8];
195 unsigned short bplcon0;
196 unsigned short bplcon1;
197 unsigned short bplcon2;
198 unsigned short bplcon3;
199 unsigned short bpl1mod;
200 unsigned short bpl2mod;
201 unsigned short bplcon4;
202 unsigned short clxcon2;
203 unsigned short bpldat[8];
204 unsigned char *sprpt[8];
205 struct {
206 unsigned short pos;
207 unsigned short ctl;
208 unsigned short dataa;
209 unsigned short datab;
210 } spr[8];
211 unsigned short color[32];
212 unsigned short htotal;
213 unsigned short hsstop;
214 unsigned short hbstrt;
215 unsigned short hbstop;
216 unsigned short vtotal;
217 unsigned short vsstop;
218 unsigned short vbstrt;
219 unsigned short vbstop;
220 unsigned short sprhstrt;
221 unsigned short sprhstop;
222 unsigned short bplhstrt;
223 unsigned short bplhstop;
224 unsigned short hhposw;
225 unsigned short hhposr;
226 unsigned short beamcon0;
227 unsigned short hsstrt;
228 unsigned short vsstrt;
229 unsigned short hcenter;
230 unsigned short diwhigh;
231 unsigned short spare4[11];
232 unsigned short fmode;
233 };
234
235 /*
236 * DMA register bits
237 */
238 #define DMAF_SETCLR (0x8000)
239 #define DMAF_AUD0 (0x0001)
240 #define DMAF_AUD1 (0x0002)
241 #define DMAF_AUD2 (0x0004)
242 #define DMAF_AUD3 (0x0008)
243 #define DMAF_DISK (0x0010)
244 #define DMAF_SPRITE (0x0020)
245 #define DMAF_BLITTER (0x0040)
246 #define DMAF_COPPER (0x0080)
247 #define DMAF_RASTER (0x0100)
248 #define DMAF_MASTER (0x0200)
249 #define DMAF_BLITHOG (0x0400)
250 #define DMAF_BLTNZERO (0x2000)
251 #define DMAF_BLTDONE (0x4000)
252 #define DMAF_ALL (0x01FF)
253
254 struct CIA {
255 unsigned char pra; char pad0[0xff];
256 unsigned char prb; char pad1[0xff];
257 unsigned char ddra; char pad2[0xff];
258 unsigned char ddrb; char pad3[0xff];
259 unsigned char talo; char pad4[0xff];
260 unsigned char tahi; char pad5[0xff];
261 unsigned char tblo; char pad6[0xff];
262 unsigned char tbhi; char pad7[0xff];
263 unsigned char todlo; char pad8[0xff];
264 unsigned char todmid; char pad9[0xff];
265 unsigned char todhi; char pada[0x1ff];
266 unsigned char sdr; char padb[0xff];
267 unsigned char icr; char padc[0xff];
268 unsigned char cra; char padd[0xff];
269 unsigned char crb; char pade[0xff];
270 };
271
272 #define zTwoBase (0x80000000)
273 #define ZTWO_PADDR(x) (((unsigned long)(x))-zTwoBase)
274 #define ZTWO_VADDR(x) (((unsigned long)(x))+zTwoBase)
275
276 #define CUSTOM_PHYSADDR (0xdff000)
277 #define custom ((*(volatile struct CUSTOM *)(zTwoBase+CUSTOM_PHYSADDR)))
278
279 #define CIAA_PHYSADDR (0xbfe001)
280 #define CIAB_PHYSADDR (0xbfd000)
281 #define ciaa ((*(volatile struct CIA *)(zTwoBase + CIAA_PHYSADDR)))
282 #define ciab ((*(volatile struct CIA *)(zTwoBase + CIAB_PHYSADDR)))
283
284 #define CHIP_PHYSADDR (0x000000)
285
286 void amiga_chip_init (void);
287 void *amiga_chip_alloc(unsigned long size, const char *name);
288 void *amiga_chip_alloc_res(unsigned long size, struct resource *res);
289 void amiga_chip_free(void *ptr);
290 unsigned long amiga_chip_avail( void ); /*MILAN*/
291 extern volatile unsigned short amiga_audio_min_period;
292
amifb_video_off(void)293 static inline void amifb_video_off(void)
294 {
295 if (amiga_chipset == CS_ECS || amiga_chipset == CS_AGA) {
296 /* program Denise/Lisa for a higher maximum play rate */
297 custom.htotal = 113; /* 31 kHz */
298 custom.vtotal = 223; /* 70 Hz */
299 custom.beamcon0 = 0x4390; /* HARDDIS, VAR{BEAM,VSY,HSY,CSY}EN */
300 /* suspend the monitor */
301 custom.hsstrt = custom.hsstop = 116;
302 custom.vsstrt = custom.vsstop = 226;
303 amiga_audio_min_period = 57;
304 }
305 }
306
307 struct tod3000 {
308 unsigned int :28, second2:4; /* lower digit */
309 unsigned int :28, second1:4; /* upper digit */
310 unsigned int :28, minute2:4; /* lower digit */
311 unsigned int :28, minute1:4; /* upper digit */
312 unsigned int :28, hour2:4; /* lower digit */
313 unsigned int :28, hour1:4; /* upper digit */
314 unsigned int :28, weekday:4;
315 unsigned int :28, day2:4; /* lower digit */
316 unsigned int :28, day1:4; /* upper digit */
317 unsigned int :28, month2:4; /* lower digit */
318 unsigned int :28, month1:4; /* upper digit */
319 unsigned int :28, year2:4; /* lower digit */
320 unsigned int :28, year1:4; /* upper digit */
321 unsigned int :28, cntrl1:4; /* control-byte 1 */
322 unsigned int :28, cntrl2:4; /* control-byte 2 */
323 unsigned int :28, cntrl3:4; /* control-byte 3 */
324 };
325 #define TOD3000_CNTRL1_HOLD 0
326 #define TOD3000_CNTRL1_FREE 9
327 #define tod_3000 ((*(volatile struct tod3000 *)(zTwoBase+0xDC0000)))
328
329 struct tod2000 {
330 unsigned int :28, second2:4; /* lower digit */
331 unsigned int :28, second1:4; /* upper digit */
332 unsigned int :28, minute2:4; /* lower digit */
333 unsigned int :28, minute1:4; /* upper digit */
334 unsigned int :28, hour2:4; /* lower digit */
335 unsigned int :28, hour1:4; /* upper digit */
336 unsigned int :28, day2:4; /* lower digit */
337 unsigned int :28, day1:4; /* upper digit */
338 unsigned int :28, month2:4; /* lower digit */
339 unsigned int :28, month1:4; /* upper digit */
340 unsigned int :28, year2:4; /* lower digit */
341 unsigned int :28, year1:4; /* upper digit */
342 unsigned int :28, weekday:4;
343 unsigned int :28, cntrl1:4; /* control-byte 1 */
344 unsigned int :28, cntrl2:4; /* control-byte 2 */
345 unsigned int :28, cntrl3:4; /* control-byte 3 */
346 };
347
348 #define TOD2000_CNTRL1_HOLD (1<<0)
349 #define TOD2000_CNTRL1_BUSY (1<<1)
350 #define TOD2000_CNTRL3_24HMODE (1<<2)
351 #define TOD2000_HOUR1_PM (1<<2)
352 #define tod_2000 ((*(volatile struct tod2000 *)(zTwoBase+0xDC0000)))
353
354 #endif /* _M68K_AMIGAHW_H */
355