diff options
Diffstat (limited to 'include/asm-x86/ide.h')
| -rw-r--r-- | include/asm-x86/ide.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/asm-x86/ide.h b/include/asm-x86/ide.h new file mode 100644 index 000000000000..e7817a3d6578 --- /dev/null +++ b/include/asm-x86/ide.h @@ -0,0 +1,78 @@ +/* + * linux/include/asm-i386/ide.h + * + * Copyright (C) 1994-1996 Linus Torvalds & authors + */ + +/* + * This file contains the i386 architecture specific IDE code. + */ + +#ifndef __ASMi386_IDE_H +#define __ASMi386_IDE_H + +#ifdef __KERNEL__ + + +#ifndef MAX_HWIFS +# ifdef CONFIG_BLK_DEV_IDEPCI +#define MAX_HWIFS 10 +# else +#define MAX_HWIFS 6 +# endif +#endif + +#define IDE_ARCH_OBSOLETE_DEFAULTS + +static __inline__ int ide_default_irq(unsigned long base) +{ + switch (base) { + case 0x1f0: return 14; + case 0x170: return 15; + case 0x1e8: return 11; + case 0x168: return 10; + case 0x1e0: return 8; + case 0x160: return 12; + default: + return 0; + } +} + +static __inline__ unsigned long ide_default_io_base(int index) +{ + /* + * If PCI is present then it is not safe to poke around + * the other legacy IDE ports. Only 0x1f0 and 0x170 are + * defined compatibility mode ports for PCI. A user can + * override this using ide= but we must default safe. + */ + if (no_pci_devices()) { + switch(index) { + case 2: return 0x1e8; + case 3: return 0x168; + case 4: return 0x1e0; + case 5: return 0x160; + } + } + switch (index) { + case 0: return 0x1f0; + case 1: return 0x170; + default: + return 0; + } +} + +#define IDE_ARCH_OBSOLETE_INIT +#define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */ + +#ifdef CONFIG_BLK_DEV_IDEPCI +#define ide_init_default_irq(base) (0) +#else +#define ide_init_default_irq(base) ide_default_irq(base) +#endif + +#include <asm-generic/ide_iops.h> + +#endif /* __KERNEL__ */ + +#endif /* __ASMi386_IDE_H */ |