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