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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-m68k/atarihw.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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diff --git a/include/asm-m68k/atarihw.h b/include/asm-m68k/atarihw.h
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1/*
2** linux/atarihw.h -- This header defines some macros and pointers for
3** the various Atari custom hardware registers.
4**
5** Copyright 1994 by Bj”rn Brauel
6**
7** 5/1/94 Roman Hodek:
8** Added definitions for TT specific chips.
9**
10** 1996-09-13 lars brinkhoff <f93labr@dd.chalmers.se>:
11** Finally added definitions for the matrix/codec and the DSP56001 host
12** interface.
13**
14** This file is subject to the terms and conditions of the GNU General Public
15** License. See the file COPYING in the main directory of this archive
16** for more details.
17**
18*/
19
20#ifndef _LINUX_ATARIHW_H_
21#define _LINUX_ATARIHW_H_
22
23#include <linux/types.h>
24#include <asm/bootinfo.h>
25#include <asm/raw_io.h>
26
27extern u_long atari_mch_cookie;
28extern u_long atari_mch_type;
29extern u_long atari_switches;
30extern int atari_rtc_year_offset;
31extern int atari_dont_touch_floppy_select;
32
33/* convenience macros for testing machine type */
34#define MACH_IS_ST ((atari_mch_cookie >> 16) == ATARI_MCH_ST)
35#define MACH_IS_STE ((atari_mch_cookie >> 16) == ATARI_MCH_STE && \
36 (atari_mch_cookie & 0xffff) == 0)
37#define MACH_IS_MSTE ((atari_mch_cookie >> 16) == ATARI_MCH_STE && \
38 (atari_mch_cookie & 0xffff) == 0x10)
39#define MACH_IS_TT ((atari_mch_cookie >> 16) == ATARI_MCH_TT)
40#define MACH_IS_FALCON ((atari_mch_cookie >> 16) == ATARI_MCH_FALCON)
41#define MACH_IS_MEDUSA (atari_mch_type == ATARI_MACH_MEDUSA)
42#define MACH_IS_HADES (atari_mch_type == ATARI_MACH_HADES)
43#define MACH_IS_AB40 (atari_mch_type == ATARI_MACH_AB40)
44
45/* values for atari_switches */
46#define ATARI_SWITCH_IKBD 0x01
47#define ATARI_SWITCH_MIDI 0x02
48#define ATARI_SWITCH_SND6 0x04
49#define ATARI_SWITCH_SND7 0x08
50#define ATARI_SWITCH_OVSC_SHIFT 16
51#define ATARI_SWITCH_OVSC_IKBD (ATARI_SWITCH_IKBD << ATARI_SWITCH_OVSC_SHIFT)
52#define ATARI_SWITCH_OVSC_MIDI (ATARI_SWITCH_MIDI << ATARI_SWITCH_OVSC_SHIFT)
53#define ATARI_SWITCH_OVSC_SND6 (ATARI_SWITCH_SND6 << ATARI_SWITCH_OVSC_SHIFT)
54#define ATARI_SWITCH_OVSC_SND7 (ATARI_SWITCH_SND7 << ATARI_SWITCH_OVSC_SHIFT)
55#define ATARI_SWITCH_OVSC_MASK 0xffff0000
56
57/*
58 * Define several Hardware-Chips for indication so that for the ATARI we do
59 * no longer decide whether it is a Falcon or other machine . It's just
60 * important what hardware the machine uses
61 */
62
63/* ++roman 08/08/95: rewritten from ORing constants to a C bitfield */
64
65#define ATARIHW_DECLARE(name) unsigned name : 1
66#define ATARIHW_SET(name) (atari_hw_present.name = 1)
67#define ATARIHW_PRESENT(name) (atari_hw_present.name)
68
69struct atari_hw_present {
70 /* video hardware */
71 ATARIHW_DECLARE(STND_SHIFTER); /* ST-Shifter - no base low ! */
72 ATARIHW_DECLARE(EXTD_SHIFTER); /* STe-Shifter - 24 bit address */
73 ATARIHW_DECLARE(TT_SHIFTER); /* TT-Shifter */
74 ATARIHW_DECLARE(VIDEL_SHIFTER); /* Falcon-Shifter */
75 /* sound hardware */
76 ATARIHW_DECLARE(YM_2149); /* Yamaha YM 2149 */
77 ATARIHW_DECLARE(PCM_8BIT); /* PCM-Sound in STe-ATARI */
78 ATARIHW_DECLARE(CODEC); /* CODEC Sound (Falcon) */
79 /* disk storage interfaces */
80 ATARIHW_DECLARE(TT_SCSI); /* Directly mapped NCR5380 */
81 ATARIHW_DECLARE(ST_SCSI); /* NCR5380 via ST-DMA (Falcon) */
82 ATARIHW_DECLARE(ACSI); /* Standard ACSI like in STs */
83 ATARIHW_DECLARE(IDE); /* IDE Interface */
84 ATARIHW_DECLARE(FDCSPEED); /* 8/16 MHz switch for FDC */
85 /* other I/O hardware */
86 ATARIHW_DECLARE(ST_MFP); /* The ST-MFP (there should be no Atari
87 without it... but who knows?) */
88 ATARIHW_DECLARE(TT_MFP); /* 2nd MFP */
89 ATARIHW_DECLARE(SCC); /* Serial Communications Contr. */
90 ATARIHW_DECLARE(ST_ESCC); /* SCC Z83230 in an ST */
91 ATARIHW_DECLARE(ANALOG_JOY); /* Paddle Interface for STe
92 and Falcon */
93 ATARIHW_DECLARE(MICROWIRE); /* Microwire Interface */
94 /* DMA */
95 ATARIHW_DECLARE(STND_DMA); /* 24 Bit limited ST-DMA */
96 ATARIHW_DECLARE(EXTD_DMA); /* 32 Bit ST-DMA */
97 ATARIHW_DECLARE(SCSI_DMA); /* DMA for the NCR5380 */
98 ATARIHW_DECLARE(SCC_DMA); /* DMA for the SCC */
99 /* real time clocks */
100 ATARIHW_DECLARE(TT_CLK); /* TT compatible clock chip */
101 ATARIHW_DECLARE(MSTE_CLK); /* Mega ST(E) clock chip */
102 /* supporting hardware */
103 ATARIHW_DECLARE(SCU); /* System Control Unit */
104 ATARIHW_DECLARE(BLITTER); /* Blitter */
105 ATARIHW_DECLARE(VME); /* VME Bus */
106 ATARIHW_DECLARE(DSP56K); /* DSP56k processor in Falcon */
107};
108
109extern struct atari_hw_present atari_hw_present;
110
111
112/* Reading the MFP port register gives a machine independent delay, since the
113 * MFP always has a 8 MHz clock. This avoids problems with the varying length
114 * of nops on various machines. Somebody claimed that the tstb takes 600 ns.
115 */
116#define MFPDELAY() \
117 __asm__ __volatile__ ( "tstb %0" : : "m" (mfp.par_dt_reg) : "cc" );
118
119/* Do cache push/invalidate for DMA read/write. This function obeys the
120 * snooping on some machines (Medusa) and processors: The Medusa itself can
121 * snoop, but only the '040 can source data from its cache to DMA writes i.e.,
122 * reads from memory). Both '040 and '060 invalidate cache entries on snooped
123 * DMA reads (i.e., writes to memory).
124 */
125
126
127#define atari_readb raw_inb
128#define atari_writeb raw_outb
129
130#define atari_inb_p raw_inb
131#define atari_outb_p raw_outb
132
133
134
135#include <linux/mm.h>
136#include <asm/cacheflush.h>
137
138static inline void dma_cache_maintenance( unsigned long paddr,
139 unsigned long len,
140 int writeflag )
141
142{
143 if (writeflag) {
144 if (!MACH_IS_MEDUSA || CPU_IS_060)
145 cache_push( paddr, len );
146 }
147 else {
148 if (!MACH_IS_MEDUSA)
149 cache_clear( paddr, len );
150 }
151}
152
153
154/*
155** Shifter
156 */
157#define ST_LOW 0
158#define ST_MID 1
159#define ST_HIGH 2
160#define TT_LOW 7
161#define TT_MID 4
162#define TT_HIGH 6
163
164#define SHF_BAS (0xffff8200)
165struct SHIFTER
166 {
167 u_char pad1;
168 u_char bas_hi;
169 u_char pad2;
170 u_char bas_md;
171 u_char pad3;
172 u_char volatile vcounthi;
173 u_char pad4;
174 u_char volatile vcountmid;
175 u_char pad5;
176 u_char volatile vcountlow;
177 u_char volatile syncmode;
178 u_char pad6;
179 u_char pad7;
180 u_char bas_lo;
181 };
182# define shifter ((*(volatile struct SHIFTER *)SHF_BAS))
183
184#define SHF_FBAS (0xffff820e)
185struct SHIFTER_F030
186 {
187 u_short off_next;
188 u_short scn_width;
189 };
190# define shifter_f030 ((*(volatile struct SHIFTER_F030 *)SHF_FBAS))
191
192
193#define SHF_TBAS (0xffff8200)
194struct SHIFTER_TT {
195 u_char char_dummy0;
196 u_char bas_hi; /* video mem base addr, high and mid byte */
197 u_char char_dummy1;
198 u_char bas_md;
199 u_char char_dummy2;
200 u_char vcount_hi; /* pointer to currently displayed byte */
201 u_char char_dummy3;
202 u_char vcount_md;
203 u_char char_dummy4;
204 u_char vcount_lo;
205 u_short st_sync; /* ST compatible sync mode register, unused */
206 u_char char_dummy5;
207 u_char bas_lo; /* video mem addr, low byte */
208 u_char char_dummy6[2+3*16];
209 /* $ffff8240: */
210 u_short color_reg[16]; /* 16 color registers */
211 u_char st_shiftmode; /* ST compatible shift mode register, unused */
212 u_char char_dummy7;
213 u_short tt_shiftmode; /* TT shift mode register */
214
215
216};
217#define shifter_tt ((*(volatile struct SHIFTER_TT *)SHF_TBAS))
218
219/* values for shifter_tt->tt_shiftmode */
220#define TT_SHIFTER_STLOW 0x0000
221#define TT_SHIFTER_STMID 0x0100
222#define TT_SHIFTER_STHIGH 0x0200
223#define TT_SHIFTER_TTLOW 0x0700
224#define TT_SHIFTER_TTMID 0x0400
225#define TT_SHIFTER_TTHIGH 0x0600
226#define TT_SHIFTER_MODEMASK 0x0700
227#define TT_SHIFTER_NUMMODE 0x0008
228#define TT_SHIFTER_PALETTE_MASK 0x000f
229#define TT_SHIFTER_GRAYMODE 0x1000
230
231/* 256 TT palette registers */
232#define TT_PALETTE_BASE (0xffff8400)
233#define tt_palette ((volatile u_short *)TT_PALETTE_BASE)
234
235#define TT_PALETTE_RED_MASK 0x0f00
236#define TT_PALETTE_GREEN_MASK 0x00f0
237#define TT_PALETTE_BLUE_MASK 0x000f
238
239/*
240** Falcon030 VIDEL Video Controller
241** for description see File 'linux\tools\atari\hardware.txt
242 */
243#define f030_col ((u_long *) 0xffff9800)
244#define f030_xreg ((u_short*) 0xffff8282)
245#define f030_yreg ((u_short*) 0xffff82a2)
246#define f030_creg ((u_short*) 0xffff82c0)
247#define f030_sreg ((u_short*) 0xffff8260)
248#define f030_mreg ((u_short*) 0xffff820a)
249#define f030_linewidth ((u_short*) 0xffff820e)
250#define f030_hscroll ((u_char*) 0xffff8265)
251
252#define VIDEL_BAS (0xffff8260)
253struct VIDEL {
254 u_short st_shift;
255 u_short pad1;
256 u_char xoffset_s;
257 u_char xoffset;
258 u_short f_shift;
259 u_char pad2[0x1a];
260 u_short hht;
261 u_short hbb;
262 u_short hbe;
263 u_short hdb;
264 u_short hde;
265 u_short hss;
266 u_char pad3[0x14];
267 u_short vft;
268 u_short vbb;
269 u_short vbe;
270 u_short vdb;
271 u_short vde;
272 u_short vss;
273 u_char pad4[0x12];
274 u_short control;
275 u_short mode;
276};
277#define videl ((*(volatile struct VIDEL *)VIDEL_BAS))
278
279/*
280** DMA/WD1772 Disk Controller
281 */
282
283#define FWD_BAS (0xffff8604)
284struct DMA_WD
285 {
286 u_short fdc_acces_seccount;
287 u_short dma_mode_status;
288 u_char dma_vhi; /* Some extended ST-DMAs can handle 32 bit addresses */
289 u_char dma_hi;
290 u_char char_dummy2;
291 u_char dma_md;
292 u_char char_dummy3;
293 u_char dma_lo;
294 u_short fdc_speed;
295 };
296# define dma_wd ((*(volatile struct DMA_WD *)FWD_BAS))
297/* alias */
298#define st_dma dma_wd
299/* The two highest bytes of an extended DMA as a short; this is a must
300 * for the Medusa.
301 */
302#define st_dma_ext_dmahi (*((volatile unsigned short *)0xffff8608))
303
304/*
305** YM2149 Sound Chip
306** access in bytes
307 */
308
309#define YM_BAS (0xffff8800)
310struct SOUND_YM
311 {
312 u_char rd_data_reg_sel;
313 u_char char_dummy1;
314 u_char wd_data;
315 };
316#define sound_ym ((*(volatile struct SOUND_YM *)YM_BAS))
317
318/* TT SCSI DMA */
319
320#define TT_SCSI_DMA_BAS (0xffff8700)
321struct TT_DMA {
322 u_char char_dummy0;
323 u_char dma_addr_hi;
324 u_char char_dummy1;
325 u_char dma_addr_hmd;
326 u_char char_dummy2;
327 u_char dma_addr_lmd;
328 u_char char_dummy3;
329 u_char dma_addr_lo;
330 u_char char_dummy4;
331 u_char dma_cnt_hi;
332 u_char char_dummy5;
333 u_char dma_cnt_hmd;
334 u_char char_dummy6;
335 u_char dma_cnt_lmd;
336 u_char char_dummy7;
337 u_char dma_cnt_lo;
338 u_long dma_restdata;
339 u_short dma_ctrl;
340};
341#define tt_scsi_dma ((*(volatile struct TT_DMA *)TT_SCSI_DMA_BAS))
342
343/* TT SCSI Controller 5380 */
344
345#define TT_5380_BAS (0xffff8781)
346struct TT_5380 {
347 u_char scsi_data;
348 u_char char_dummy1;
349 u_char scsi_icr;
350 u_char char_dummy2;
351 u_char scsi_mode;
352 u_char char_dummy3;
353 u_char scsi_tcr;
354 u_char char_dummy4;
355 u_char scsi_idstat;
356 u_char char_dummy5;
357 u_char scsi_dmastat;
358 u_char char_dummy6;
359 u_char scsi_targrcv;
360 u_char char_dummy7;
361 u_char scsi_inircv;
362};
363#define tt_scsi ((*(volatile struct TT_5380 *)TT_5380_BAS))
364#define tt_scsi_regp ((volatile char *)TT_5380_BAS)
365
366
367/*
368** Falcon DMA Sound Subsystem
369 */
370
371#define MATRIX_BASE (0xffff8930)
372struct MATRIX
373{
374 u_short source;
375 u_short destination;
376 u_char external_frequency_divider;
377 u_char internal_frequency_divider;
378};
379#define falcon_matrix (*(volatile struct MATRIX *)MATRIX_BASE)
380
381#define CODEC_BASE (0xffff8936)
382struct CODEC
383{
384 u_char tracks;
385 u_char input_source;
386#define CODEC_SOURCE_ADC 1
387#define CODEC_SOURCE_MATRIX 2
388 u_char adc_source;
389#define ADC_SOURCE_RIGHT_PSG 1
390#define ADC_SOURCE_LEFT_PSG 2
391 u_char gain;
392#define CODEC_GAIN_RIGHT 0x0f
393#define CODEC_GAIN_LEFT 0xf0
394 u_char attenuation;
395#define CODEC_ATTENUATION_RIGHT 0x0f
396#define CODEC_ATTENUATION_LEFT 0xf0
397 u_char unused1;
398 u_char status;
399#define CODEC_OVERFLOW_RIGHT 1
400#define CODEC_OVERFLOW_LEFT 2
401 u_char unused2, unused3, unused4, unused5;
402 u_char gpio_directions;
403#define GPIO_IN 0
404#define GPIO_OUT 1
405 u_char unused6;
406 u_char gpio_data;
407};
408#define falcon_codec (*(volatile struct CODEC *)CODEC_BASE)
409
410/*
411** Falcon Blitter
412*/
413
414#define BLT_BAS (0xffff8a00)
415
416struct BLITTER
417 {
418 u_short halftone[16];
419 u_short src_x_inc;
420 u_short src_y_inc;
421 u_long src_address;
422 u_short endmask1;
423 u_short endmask2;
424 u_short endmask3;
425 u_short dst_x_inc;
426 u_short dst_y_inc;
427 u_long dst_address;
428 u_short wd_per_line;
429 u_short ln_per_bb;
430 u_short hlf_op_reg;
431 u_short log_op_reg;
432 u_short lin_nm_reg;
433 u_short skew_reg;
434 };
435# define blitter ((*(volatile struct BLITTER *)BLT_BAS))
436
437
438/*
439** SCC Z8530
440 */
441
442#define SCC_BAS (0xffff8c81)
443struct SCC
444 {
445 u_char cha_a_ctrl;
446 u_char char_dummy1;
447 u_char cha_a_data;
448 u_char char_dummy2;
449 u_char cha_b_ctrl;
450 u_char char_dummy3;
451 u_char cha_b_data;
452 };
453# define scc ((*(volatile struct SCC*)SCC_BAS))
454
455/* The ESCC (Z85230) in an Atari ST. The channels are reversed! */
456# define st_escc ((*(volatile struct SCC*)0xfffffa31))
457# define st_escc_dsr ((*(volatile char *)0xfffffa39))
458
459/* TT SCC DMA Controller (same chip as SCSI DMA) */
460
461#define TT_SCC_DMA_BAS (0xffff8c00)
462#define tt_scc_dma ((*(volatile struct TT_DMA *)TT_SCC_DMA_BAS))
463
464/*
465** VIDEL Palette Register
466 */
467
468#define FPL_BAS (0xffff9800)
469struct VIDEL_PALETTE
470 {
471 u_long reg[256];
472 };
473# define videl_palette ((*(volatile struct VIDEL_PALETTE*)FPL_BAS))
474
475
476/*
477** Falcon DSP Host Interface
478 */
479
480#define DSP56K_HOST_INTERFACE_BASE (0xffffa200)
481struct DSP56K_HOST_INTERFACE {
482 u_char icr;
483#define DSP56K_ICR_RREQ 0x01
484#define DSP56K_ICR_TREQ 0x02
485#define DSP56K_ICR_HF0 0x08
486#define DSP56K_ICR_HF1 0x10
487#define DSP56K_ICR_HM0 0x20
488#define DSP56K_ICR_HM1 0x40
489#define DSP56K_ICR_INIT 0x80
490
491 u_char cvr;
492#define DSP56K_CVR_HV_MASK 0x1f
493#define DSP56K_CVR_HC 0x80
494
495 u_char isr;
496#define DSP56K_ISR_RXDF 0x01
497#define DSP56K_ISR_TXDE 0x02
498#define DSP56K_ISR_TRDY 0x04
499#define DSP56K_ISR_HF2 0x08
500#define DSP56K_ISR_HF3 0x10
501#define DSP56K_ISR_DMA 0x40
502#define DSP56K_ISR_HREQ 0x80
503
504 u_char ivr;
505
506 union {
507 u_char b[4];
508 u_short w[2];
509 u_long l;
510 } data;
511};
512#define dsp56k_host_interface ((*(volatile struct DSP56K_HOST_INTERFACE *)DSP56K_HOST_INTERFACE_BASE))
513
514/*
515** MFP 68901
516 */
517
518#define MFP_BAS (0xfffffa01)
519struct MFP
520 {
521 u_char par_dt_reg;
522 u_char char_dummy1;
523 u_char active_edge;
524 u_char char_dummy2;
525 u_char data_dir;
526 u_char char_dummy3;
527 u_char int_en_a;
528 u_char char_dummy4;
529 u_char int_en_b;
530 u_char char_dummy5;
531 u_char int_pn_a;
532 u_char char_dummy6;
533 u_char int_pn_b;
534 u_char char_dummy7;
535 u_char int_sv_a;
536 u_char char_dummy8;
537 u_char int_sv_b;
538 u_char char_dummy9;
539 u_char int_mk_a;
540 u_char char_dummy10;
541 u_char int_mk_b;
542 u_char char_dummy11;
543 u_char vec_adr;
544 u_char char_dummy12;
545 u_char tim_ct_a;
546 u_char char_dummy13;
547 u_char tim_ct_b;
548 u_char char_dummy14;
549 u_char tim_ct_cd;
550 u_char char_dummy15;
551 u_char tim_dt_a;
552 u_char char_dummy16;
553 u_char tim_dt_b;
554 u_char char_dummy17;
555 u_char tim_dt_c;
556 u_char char_dummy18;
557 u_char tim_dt_d;
558 u_char char_dummy19;
559 u_char sync_char;
560 u_char char_dummy20;
561 u_char usart_ctr;
562 u_char char_dummy21;
563 u_char rcv_stat;
564 u_char char_dummy22;
565 u_char trn_stat;
566 u_char char_dummy23;
567 u_char usart_dta;
568 };
569# define mfp ((*(volatile struct MFP*)MFP_BAS))
570
571/* TT's second MFP */
572
573#define TT_MFP_BAS (0xfffffa81)
574# define tt_mfp ((*(volatile struct MFP*)TT_MFP_BAS))
575
576
577/* TT System Control Unit */
578
579#define TT_SCU_BAS (0xffff8e01)
580struct TT_SCU {
581 u_char sys_mask;
582 u_char char_dummy1;
583 u_char sys_stat;
584 u_char char_dummy2;
585 u_char softint;
586 u_char char_dummy3;
587 u_char vmeint;
588 u_char char_dummy4;
589 u_char gp_reg1;
590 u_char char_dummy5;
591 u_char gp_reg2;
592 u_char char_dummy6;
593 u_char vme_mask;
594 u_char char_dummy7;
595 u_char vme_stat;
596};
597#define tt_scu ((*(volatile struct TT_SCU *)TT_SCU_BAS))
598
599/* TT real time clock */
600
601#define TT_RTC_BAS (0xffff8961)
602struct TT_RTC {
603 u_char regsel;
604 u_char dummy;
605 u_char data;
606};
607#define tt_rtc ((*(volatile struct TT_RTC *)TT_RTC_BAS))
608
609
610/*
611** ACIA 6850
612 */
613/* constants for the ACIA registers */
614
615/* baudrate selection and reset (Baudrate = clock/factor) */
616#define ACIA_DIV1 0
617#define ACIA_DIV16 1
618#define ACIA_DIV64 2
619#define ACIA_RESET 3
620
621/* character format */
622#define ACIA_D7E2S (0<<2) /* 7 data, even parity, 2 stop */
623#define ACIA_D7O2S (1<<2) /* 7 data, odd parity, 2 stop */
624#define ACIA_D7E1S (2<<2) /* 7 data, even parity, 1 stop */
625#define ACIA_D7O1S (3<<2) /* 7 data, odd parity, 1 stop */
626#define ACIA_D8N2S (4<<2) /* 8 data, no parity, 2 stop */
627#define ACIA_D8N1S (5<<2) /* 8 data, no parity, 1 stop */
628#define ACIA_D8E1S (6<<2) /* 8 data, even parity, 1 stop */
629#define ACIA_D8O1S (7<<2) /* 8 data, odd parity, 1 stop */
630
631/* transmit control */
632#define ACIA_RLTID (0<<5) /* RTS low, TxINT disabled */
633#define ACIA_RLTIE (1<<5) /* RTS low, TxINT enabled */
634#define ACIA_RHTID (2<<5) /* RTS high, TxINT disabled */
635#define ACIA_RLTIDSB (3<<5) /* RTS low, TxINT disabled, send break */
636
637/* receive control */
638#define ACIA_RID (0<<7) /* RxINT disabled */
639#define ACIA_RIE (1<<7) /* RxINT enabled */
640
641/* status fields of the ACIA */
642#define ACIA_RDRF 1 /* Receive Data Register Full */
643#define ACIA_TDRE (1<<1) /* Transmit Data Register Empty */
644#define ACIA_DCD (1<<2) /* Data Carrier Detect */
645#define ACIA_CTS (1<<3) /* Clear To Send */
646#define ACIA_FE (1<<4) /* Framing Error */
647#define ACIA_OVRN (1<<5) /* Receiver Overrun */
648#define ACIA_PE (1<<6) /* Parity Error */
649#define ACIA_IRQ (1<<7) /* Interrupt Request */
650
651#define ACIA_BAS (0xfffffc00)
652struct ACIA
653 {
654 u_char key_ctrl;
655 u_char char_dummy1;
656 u_char key_data;
657 u_char char_dummy2;
658 u_char mid_ctrl;
659 u_char char_dummy3;
660 u_char mid_data;
661 };
662# define acia ((*(volatile struct ACIA*)ACIA_BAS))
663
664#define TT_DMASND_BAS (0xffff8900)
665struct TT_DMASND {
666 u_char int_ctrl; /* Falcon: Interrupt control */
667 u_char ctrl;
668 u_char pad2;
669 u_char bas_hi;
670 u_char pad3;
671 u_char bas_mid;
672 u_char pad4;
673 u_char bas_low;
674 u_char pad5;
675 u_char addr_hi;
676 u_char pad6;
677 u_char addr_mid;
678 u_char pad7;
679 u_char addr_low;
680 u_char pad8;
681 u_char end_hi;
682 u_char pad9;
683 u_char end_mid;
684 u_char pad10;
685 u_char end_low;
686 u_char pad11[12];
687 u_char track_select; /* Falcon */
688 u_char mode;
689 u_char pad12[14];
690 /* Falcon only: */
691 u_short cbar_src;
692 u_short cbar_dst;
693 u_char ext_div;
694 u_char int_div;
695 u_char rec_track_select;
696 u_char dac_src;
697 u_char adc_src;
698 u_char input_gain;
699 u_short output_atten;
700};
701# define tt_dmasnd ((*(volatile struct TT_DMASND *)TT_DMASND_BAS))
702
703#define DMASND_MFP_INT_REPLAY 0x01
704#define DMASND_MFP_INT_RECORD 0x02
705#define DMASND_TIMERA_INT_REPLAY 0x04
706#define DMASND_TIMERA_INT_RECORD 0x08
707
708#define DMASND_CTRL_OFF 0x00
709#define DMASND_CTRL_ON 0x01
710#define DMASND_CTRL_REPEAT 0x02
711#define DMASND_CTRL_RECORD_ON 0x10
712#define DMASND_CTRL_RECORD_OFF 0x00
713#define DMASND_CTRL_RECORD_REPEAT 0x20
714#define DMASND_CTRL_SELECT_REPLAY 0x00
715#define DMASND_CTRL_SELECT_RECORD 0x80
716#define DMASND_MODE_MONO 0x80
717#define DMASND_MODE_STEREO 0x00
718#define DMASND_MODE_8BIT 0x00
719#define DMASND_MODE_16BIT 0x40 /* Falcon only */
720#define DMASND_MODE_6KHZ 0x00 /* Falcon: mute */
721#define DMASND_MODE_12KHZ 0x01
722#define DMASND_MODE_25KHZ 0x02
723#define DMASND_MODE_50KHZ 0x03
724
725
726#define DMASNDSetBase(bufstart) \
727 do { \
728 tt_dmasnd.bas_hi = (unsigned char)(((bufstart) & 0xff0000) >> 16); \
729 tt_dmasnd.bas_mid = (unsigned char)(((bufstart) & 0x00ff00) >> 8); \
730 tt_dmasnd.bas_low = (unsigned char) ((bufstart) & 0x0000ff); \
731 } while( 0 )
732
733#define DMASNDGetAdr() ((tt_dmasnd.addr_hi << 16) + \
734 (tt_dmasnd.addr_mid << 8) + \
735 (tt_dmasnd.addr_low))
736
737#define DMASNDSetEnd(bufend) \
738 do { \
739 tt_dmasnd.end_hi = (unsigned char)(((bufend) & 0xff0000) >> 16); \
740 tt_dmasnd.end_mid = (unsigned char)(((bufend) & 0x00ff00) >> 8); \
741 tt_dmasnd.end_low = (unsigned char) ((bufend) & 0x0000ff); \
742 } while( 0 )
743
744
745#define TT_MICROWIRE_BAS (0xffff8922)
746struct TT_MICROWIRE {
747 u_short data;
748 u_short mask;
749};
750# define tt_microwire ((*(volatile struct TT_MICROWIRE *)TT_MICROWIRE_BAS))
751
752#define MW_LM1992_ADDR 0x0400
753
754#define MW_LM1992_VOLUME(dB) \
755 (0x0c0 | ((dB) < -80 ? 0 : (dB) > 0 ? 40 : (((dB) + 80) / 2)))
756#define MW_LM1992_BALLEFT(dB) \
757 (0x140 | ((dB) < -40 ? 0 : (dB) > 0 ? 20 : (((dB) + 40) / 2)))
758#define MW_LM1992_BALRIGHT(dB) \
759 (0x100 | ((dB) < -40 ? 0 : (dB) > 0 ? 20 : (((dB) + 40) / 2)))
760#define MW_LM1992_TREBLE(dB) \
761 (0x080 | ((dB) < -12 ? 0 : (dB) > 12 ? 12 : (((dB) / 2) + 6)))
762#define MW_LM1992_BASS(dB) \
763 (0x040 | ((dB) < -12 ? 0 : (dB) > 12 ? 12 : (((dB) / 2) + 6)))
764
765#define MW_LM1992_PSG_LOW 0x000
766#define MW_LM1992_PSG_HIGH 0x001
767#define MW_LM1992_PSG_OFF 0x002
768
769#define MSTE_RTC_BAS (0xfffffc21)
770
771struct MSTE_RTC {
772 u_char sec_ones;
773 u_char dummy1;
774 u_char sec_tens;
775 u_char dummy2;
776 u_char min_ones;
777 u_char dummy3;
778 u_char min_tens;
779 u_char dummy4;
780 u_char hr_ones;
781 u_char dummy5;
782 u_char hr_tens;
783 u_char dummy6;
784 u_char weekday;
785 u_char dummy7;
786 u_char day_ones;
787 u_char dummy8;
788 u_char day_tens;
789 u_char dummy9;
790 u_char mon_ones;
791 u_char dummy10;
792 u_char mon_tens;
793 u_char dummy11;
794 u_char year_ones;
795 u_char dummy12;
796 u_char year_tens;
797 u_char dummy13;
798 u_char mode;
799 u_char dummy14;
800 u_char test;
801 u_char dummy15;
802 u_char reset;
803};
804
805#define mste_rtc ((*(volatile struct MSTE_RTC *)MSTE_RTC_BAS))
806
807#endif /* linux/atarihw.h */
808
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