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1da177e4 LT |
1 | /* |
2 | * linux/drivers/ide/legacy/falconide.c -- Atari Falcon IDE Driver | |
3 | * | |
4 | * Created 12 Jul 1997 by Geert Uytterhoeven | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file COPYING in the main directory of this archive for | |
8 | * more details. | |
9 | */ | |
10 | ||
88f8bb78 | 11 | #include <linux/module.h> |
1da177e4 LT |
12 | #include <linux/types.h> |
13 | #include <linux/mm.h> | |
14 | #include <linux/interrupt.h> | |
15 | #include <linux/blkdev.h> | |
16 | #include <linux/hdreg.h> | |
17 | #include <linux/ide.h> | |
18 | #include <linux/init.h> | |
19 | ||
20 | #include <asm/setup.h> | |
21 | #include <asm/atarihw.h> | |
22 | #include <asm/atariints.h> | |
23 | #include <asm/atari_stdma.h> | |
24 | ||
25 | ||
26 | /* | |
27 | * Base of the IDE interface | |
28 | */ | |
29 | ||
30 | #define ATA_HD_BASE 0xfff00000 | |
31 | ||
32 | /* | |
33 | * Offsets from the above base | |
34 | */ | |
35 | ||
36 | #define ATA_HD_DATA 0x00 | |
37 | #define ATA_HD_ERROR 0x05 /* see err-bits */ | |
38 | #define ATA_HD_NSECTOR 0x09 /* nr of sectors to read/write */ | |
39 | #define ATA_HD_SECTOR 0x0d /* starting sector */ | |
40 | #define ATA_HD_LCYL 0x11 /* starting cylinder */ | |
41 | #define ATA_HD_HCYL 0x15 /* high byte of starting cyl */ | |
42 | #define ATA_HD_SELECT 0x19 /* 101dhhhh , d=drive, hhhh=head */ | |
43 | #define ATA_HD_STATUS 0x1d /* see status-bits */ | |
44 | #define ATA_HD_CONTROL 0x39 | |
45 | ||
46 | static int falconide_offsets[IDE_NR_PORTS] __initdata = { | |
47 | ATA_HD_DATA, ATA_HD_ERROR, ATA_HD_NSECTOR, ATA_HD_SECTOR, ATA_HD_LCYL, | |
48 | ATA_HD_HCYL, ATA_HD_SELECT, ATA_HD_STATUS, ATA_HD_CONTROL, -1 | |
49 | }; | |
50 | ||
51 | ||
52 | /* | |
53 | * falconide_intr_lock is used to obtain access to the IDE interrupt, | |
54 | * which is shared between several drivers. | |
55 | */ | |
56 | ||
57 | int falconide_intr_lock; | |
88f8bb78 | 58 | EXPORT_SYMBOL(falconide_intr_lock); |
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59 | |
60 | ||
61 | /* | |
62 | * Probe for a Falcon IDE interface | |
63 | */ | |
64 | ||
65 | void __init falconide_init(void) | |
66 | { | |
67 | if (MACH_IS_ATARI && ATARIHW_PRESENT(IDE)) { | |
68 | hw_regs_t hw; | |
69 | int index; | |
70 | ||
71 | ide_setup_ports(&hw, ATA_HD_BASE, falconide_offsets, | |
72 | 0, 0, NULL, | |
73 | // falconide_iops, | |
74 | IRQ_MFP_IDE); | |
869c56ee | 75 | index = ide_register_hw(&hw, 1, NULL); |
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76 | |
77 | if (index != -1) | |
78 | printk("ide%d: Falcon IDE interface\n", index); | |
79 | } | |
80 | } |