102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
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/*
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** linux/machw.h -- This header defines some macros and pointers for
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** the various Macintosh custom hardware registers.
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**
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** Copyright 1997 by Michael Schmitz
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**
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** This file is subject to the terms and conditions of the GNU General Public
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** License. See the file COPYING in the main directory of this archive
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** for more details.
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**
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*/
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#ifndef _ASM_MACHW_H_
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#define _ASM_MACHW_H_
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/*
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* head.S maps the videomem to VIDEOMEMBASE
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*/
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#define VIDEOMEMBASE 0xf0000000
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#define VIDEOMEMSIZE (4096*1024)
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#define VIDEOMEMMASK (-4096*1024)
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#if 0
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/* Mac SCSI Controller 5380 */
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#define MAC_5380_BAS (0x50F10000) /* This is definitely wrong!! */
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struct MAC_5380 {
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u_char scsi_data;
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u_char char_dummy1;
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u_char scsi_icr;
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u_char char_dummy2;
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u_char scsi_mode;
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u_char char_dummy3;
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u_char scsi_tcr;
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u_char char_dummy4;
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u_char scsi_idstat;
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u_char char_dummy5;
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u_char scsi_dmastat;
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u_char char_dummy6;
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u_char scsi_targrcv;
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u_char char_dummy7;
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u_char scsi_inircv;
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};
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#define mac_scsi ((*(volatile struct MAC_5380 *)MAC_5380_BAS))
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/*
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** SCC Z8530
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*/
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#define MAC_SCC_BAS (0x50F04000)
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struct MAC_SCC
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{
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u_char cha_a_ctrl;
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u_char char_dummy1;
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u_char cha_a_data;
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u_char char_dummy2;
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u_char cha_b_ctrl;
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u_char char_dummy3;
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u_char cha_b_data;
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};
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# define mac_scc ((*(volatile struct SCC*)MAC_SCC_BAS))
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#endif
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/* hardware stuff */
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#define MACHW_DECLARE(name) unsigned name : 1
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#define MACHW_SET(name) (mac_hw_present.name = 1)
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#define MACHW_PRESENT(name) (mac_hw_present.name)
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struct mac_hw_present {
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/* video hardware */
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/* sound hardware */
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/* disk storage interfaces */
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MACHW_DECLARE(MAC_SCSI_80); /* Directly mapped NCR5380 */
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MACHW_DECLARE(MAC_SCSI_96); /* 53c9[46] */
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MACHW_DECLARE(MAC_SCSI_96_2); /* 2nd 53c9[46] Q900 and Q950 */
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MACHW_DECLARE(IDE); /* IDE Interface */
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/* other I/O hardware */
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MACHW_DECLARE(SCC); /* Serial Communications Contr. */
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/* DMA */
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MACHW_DECLARE(SCSI_DMA); /* DMA for the NCR5380 */
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/* real time clocks */
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MACHW_DECLARE(RTC_CLK); /* clock chip */
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/* supporting hardware */
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MACHW_DECLARE(VIA1); /* Versatile Interface Ad. 1 */
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MACHW_DECLARE(VIA2); /* Versatile Interface Ad. 2 */
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MACHW_DECLARE(RBV); /* Versatile Interface Ad. 2+ */
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/* NUBUS */
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MACHW_DECLARE(NUBUS); /* NUBUS */
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};
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extern struct mac_hw_present mac_hw_present;
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#endif /* __ASSEMBLY__ */
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#endif /* linux/machw.h */
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