| /* |
| * linux/drivers/ide/legacy/falconide.c -- Atari Falcon IDE Driver |
| * |
| * Created 12 Jul 1997 by Geert Uytterhoeven |
| * |
| * 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. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/mm.h> |
| #include <linux/interrupt.h> |
| #include <linux/blkdev.h> |
| #include <linux/hdreg.h> |
| #include <linux/ide.h> |
| #include <linux/init.h> |
| |
| #include <asm/setup.h> |
| #include <asm/atarihw.h> |
| #include <asm/atariints.h> |
| #include <asm/atari_stdma.h> |
| |
| |
| /* |
| * Base of the IDE interface |
| */ |
| |
| #define ATA_HD_BASE 0xfff00000 |
| |
| /* |
| * Offsets from the above base |
| */ |
| |
| #define ATA_HD_DATA 0x00 |
| #define ATA_HD_ERROR 0x05 /* see err-bits */ |
| #define ATA_HD_NSECTOR 0x09 /* nr of sectors to read/write */ |
| #define ATA_HD_SECTOR 0x0d /* starting sector */ |
| #define ATA_HD_LCYL 0x11 /* starting cylinder */ |
| #define ATA_HD_HCYL 0x15 /* high byte of starting cyl */ |
| #define ATA_HD_SELECT 0x19 /* 101dhhhh , d=drive, hhhh=head */ |
| #define ATA_HD_STATUS 0x1d /* see status-bits */ |
| #define ATA_HD_CONTROL 0x39 |
| |
| static int falconide_offsets[IDE_NR_PORTS] __initdata = { |
| ATA_HD_DATA, ATA_HD_ERROR, ATA_HD_NSECTOR, ATA_HD_SECTOR, ATA_HD_LCYL, |
| ATA_HD_HCYL, ATA_HD_SELECT, ATA_HD_STATUS, ATA_HD_CONTROL, -1 |
| }; |
| |
| |
| /* |
| * falconide_intr_lock is used to obtain access to the IDE interrupt, |
| * which is shared between several drivers. |
| */ |
| |
| int falconide_intr_lock; |
| EXPORT_SYMBOL(falconide_intr_lock); |
| |
| |
| /* |
| * Probe for a Falcon IDE interface |
| */ |
| |
| static int __init falconide_init(void) |
| { |
| if (MACH_IS_ATARI && ATARIHW_PRESENT(IDE)) { |
| hw_regs_t hw; |
| |
| ide_setup_ports(&hw, ATA_HD_BASE, falconide_offsets, |
| 0, 0, NULL, |
| // falconide_iops, |
| IRQ_MFP_IDE); |
| |
| hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); |
| if (hwif) { |
| u8 index = hwif->index; |
| u8 idx[4] = { index, 0xff, 0xff, 0xff }; |
| |
| ide_init_port_data(hwif, index); |
| ide_init_port_hw(hwif, &hw); |
| |
| printk("ide%d: Falcon IDE interface\n", index); |
| |
| ide_device_add(idx); |
| } |
| } |
| |
| return 0; |
| } |
| |
| module_init(falconide_init); |