ef87f8d096
* Remove obsoleted "idex=" kernel parameters. * Make probe_* and cmd640_vlb variables static. Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/ide.h>
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#define DRV_NAME "ide-4drives"
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static int probe_4drives;
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module_param_named(probe, probe_4drives, bool, 0);
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MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port");
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static int __init ide_4drives_init(void)
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{
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ide_hwif_t *hwif, *mate;
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unsigned long base = 0x1f0, ctl = 0x3f6;
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u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
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hw_regs_t hw;
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if (probe_4drives == 0)
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return -ENODEV;
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if (!request_region(base, 8, DRV_NAME)) {
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printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
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DRV_NAME, base, base + 7);
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return -EBUSY;
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}
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if (!request_region(ctl, 1, DRV_NAME)) {
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printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
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DRV_NAME, ctl);
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release_region(base, 8);
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return -EBUSY;
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}
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memset(&hw, 0, sizeof(hw));
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ide_std_init_ports(&hw, base, ctl);
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hw.irq = 14;
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hw.chipset = ide_4drives;
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hwif = ide_find_port();
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if (hwif) {
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ide_init_port_hw(hwif, &hw);
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idx[0] = hwif->index;
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}
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mate = ide_find_port();
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if (mate) {
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ide_init_port_hw(mate, &hw);
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mate->drives[0].select.all ^= 0x20;
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mate->drives[1].select.all ^= 0x20;
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idx[1] = mate->index;
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if (hwif) {
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hwif->mate = mate;
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mate->mate = hwif;
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hwif->serialized = mate->serialized = 1;
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}
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}
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ide_device_add(idx, NULL);
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return 0;
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}
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module_init(ide_4drives_init);
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MODULE_AUTHOR("Bartlomiej Zolnierkiewicz");
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MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support");
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MODULE_LICENSE("GPL");
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