| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | ** linux/machw.h -- This header defines some macros and pointers for |
| 3 | ** the various Macintosh custom hardware registers. |
| 4 | ** |
| 5 | ** Copyright 1997 by Michael Schmitz |
| 6 | ** |
| 7 | ** This file is subject to the terms and conditions of the GNU General Public |
| 8 | ** License. See the file COPYING in the main directory of this archive |
| 9 | ** for more details. |
| 10 | ** |
| 11 | */ |
| 12 | |
| 13 | #ifndef _ASM_MACHW_H_ |
| 14 | #define _ASM_MACHW_H_ |
| 15 | |
| 16 | /* |
| 17 | * head.S maps the videomem to VIDEOMEMBASE |
| 18 | */ |
| 19 | |
| 20 | #define VIDEOMEMBASE 0xf0000000 |
| 21 | #define VIDEOMEMSIZE (4096*1024) |
| 22 | #define VIDEOMEMMASK (-4096*1024) |
| 23 | |
| 24 | #ifndef __ASSEMBLY__ |
| 25 | |
| 26 | #include <linux/types.h> |
| 27 | |
| 28 | #if 0 |
| 29 | /* Mac SCSI Controller 5380 */ |
| 30 | |
| 31 | #define MAC_5380_BAS (0x50F10000) /* This is definitely wrong!! */ |
| 32 | struct MAC_5380 { |
| 33 | u_char scsi_data; |
| 34 | u_char char_dummy1; |
| 35 | u_char scsi_icr; |
| 36 | u_char char_dummy2; |
| 37 | u_char scsi_mode; |
| 38 | u_char char_dummy3; |
| 39 | u_char scsi_tcr; |
| 40 | u_char char_dummy4; |
| 41 | u_char scsi_idstat; |
| 42 | u_char char_dummy5; |
| 43 | u_char scsi_dmastat; |
| 44 | u_char char_dummy6; |
| 45 | u_char scsi_targrcv; |
| 46 | u_char char_dummy7; |
| 47 | u_char scsi_inircv; |
| 48 | }; |
| 49 | #define mac_scsi ((*(volatile struct MAC_5380 *)MAC_5380_BAS)) |
| 50 | |
| 51 | /* |
| 52 | ** SCC Z8530 |
| 53 | */ |
| 54 | |
| 55 | #define MAC_SCC_BAS (0x50F04000) |
| 56 | struct MAC_SCC |
| 57 | { |
| 58 | u_char cha_a_ctrl; |
| 59 | u_char char_dummy1; |
| 60 | u_char cha_a_data; |
| 61 | u_char char_dummy2; |
| 62 | u_char cha_b_ctrl; |
| 63 | u_char char_dummy3; |
| 64 | u_char cha_b_data; |
| 65 | }; |
| 66 | # define mac_scc ((*(volatile struct SCC*)MAC_SCC_BAS)) |
| 67 | #endif |
| 68 | |
| 69 | /* hardware stuff */ |
| 70 | |
| 71 | #define MACHW_DECLARE(name) unsigned name : 1 |
| 72 | #define MACHW_SET(name) (mac_hw_present.name = 1) |
| 73 | #define MACHW_PRESENT(name) (mac_hw_present.name) |
| 74 | |
| 75 | struct mac_hw_present { |
| 76 | /* video hardware */ |
| 77 | /* sound hardware */ |
| 78 | /* disk storage interfaces */ |
| 79 | MACHW_DECLARE(MAC_SCSI_80); /* Directly mapped NCR5380 */ |
| 80 | MACHW_DECLARE(MAC_SCSI_96); /* 53c9[46] */ |
| 81 | MACHW_DECLARE(MAC_SCSI_96_2); /* 2nd 53c9[46] Q900 and Q950 */ |
| 82 | MACHW_DECLARE(IDE); /* IDE Interface */ |
| 83 | /* other I/O hardware */ |
| 84 | MACHW_DECLARE(SCC); /* Serial Communications Contr. */ |
| 85 | /* DMA */ |
| 86 | MACHW_DECLARE(SCSI_DMA); /* DMA for the NCR5380 */ |
| 87 | /* real time clocks */ |
| 88 | MACHW_DECLARE(RTC_CLK); /* clock chip */ |
| 89 | /* supporting hardware */ |
| 90 | MACHW_DECLARE(VIA1); /* Versatile Interface Ad. 1 */ |
| 91 | MACHW_DECLARE(VIA2); /* Versatile Interface Ad. 2 */ |
| 92 | MACHW_DECLARE(RBV); /* Versatile Interface Ad. 2+ */ |
| 93 | /* NUBUS */ |
| 94 | MACHW_DECLARE(NUBUS); /* NUBUS */ |
| 95 | }; |
| 96 | |
| 97 | extern struct mac_hw_present mac_hw_present; |
| 98 | |
| 99 | #endif /* __ASSEMBLY__ */ |
| 100 | |
| 101 | #endif /* linux/machw.h */ |