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