| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 11 | #include <linux/types.h> |
| 12 | #include <linux/mm.h> |
| 13 | #include <linux/interrupt.h> |
| 14 | #include <linux/blkdev.h> |
| 15 | #include <linux/hdreg.h> |
| 16 | #include <linux/ide.h> |
| 17 | #include <linux/init.h> |
| 18 | |
| 19 | #include <asm/setup.h> |
| 20 | #include <asm/atarihw.h> |
| 21 | #include <asm/atariints.h> |
| 22 | #include <asm/atari_stdma.h> |
| 23 | |
| 24 | |
| 25 | /* |
| 26 | * Base of the IDE interface |
| 27 | */ |
| 28 | |
| 29 | #define ATA_HD_BASE 0xfff00000 |
| 30 | |
| 31 | /* |
| 32 | * Offsets from the above base |
| 33 | */ |
| 34 | |
| 35 | #define ATA_HD_DATA 0x00 |
| 36 | #define ATA_HD_ERROR 0x05 /* see err-bits */ |
| 37 | #define ATA_HD_NSECTOR 0x09 /* nr of sectors to read/write */ |
| 38 | #define ATA_HD_SECTOR 0x0d /* starting sector */ |
| 39 | #define ATA_HD_LCYL 0x11 /* starting cylinder */ |
| 40 | #define ATA_HD_HCYL 0x15 /* high byte of starting cyl */ |
| 41 | #define ATA_HD_SELECT 0x19 /* 101dhhhh , d=drive, hhhh=head */ |
| 42 | #define ATA_HD_STATUS 0x1d /* see status-bits */ |
| 43 | #define ATA_HD_CONTROL 0x39 |
| 44 | |
| 45 | static int falconide_offsets[IDE_NR_PORTS] __initdata = { |
| 46 | ATA_HD_DATA, ATA_HD_ERROR, ATA_HD_NSECTOR, ATA_HD_SECTOR, ATA_HD_LCYL, |
| 47 | ATA_HD_HCYL, ATA_HD_SELECT, ATA_HD_STATUS, ATA_HD_CONTROL, -1 |
| 48 | }; |
| 49 | |
| 50 | |
| 51 | /* |
| 52 | * falconide_intr_lock is used to obtain access to the IDE interrupt, |
| 53 | * which is shared between several drivers. |
| 54 | */ |
| 55 | |
| 56 | int falconide_intr_lock; |
| 57 | |
| 58 | |
| 59 | /* |
| 60 | * Probe for a Falcon IDE interface |
| 61 | */ |
| 62 | |
| 63 | void __init falconide_init(void) |
| 64 | { |
| 65 | if (MACH_IS_ATARI && ATARIHW_PRESENT(IDE)) { |
| 66 | hw_regs_t hw; |
| 67 | int index; |
| 68 | |
| 69 | ide_setup_ports(&hw, ATA_HD_BASE, falconide_offsets, |
| 70 | 0, 0, NULL, |
| 71 | // falconide_iops, |
| 72 | IRQ_MFP_IDE); |
| 73 | index = ide_register_hw(&hw, NULL); |
| 74 | |
| 75 | if (index != -1) |
| 76 | printk("ide%d: Falcon IDE interface\n", index); |
| 77 | } |
| 78 | } |