| /* |
| * 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. |
| * |
| * Copyright (C) 1994-1996 Linus Torvalds & authors |
| * |
| * Copied from i386; many of the especially older MIPS or ISA-based platforms |
| * are basically identical. Using this file probably implies i8259 PIC |
| * support in a system but the very least interrupt numbers 0 - 15 need to |
| * be put aside for legacy devices. |
| */ |
| #ifndef __ASM_MACH_GENERIC_IDE_H |
| #define __ASM_MACH_GENERIC_IDE_H |
| |
| #ifdef __KERNEL__ |
| |
| #include <linux/config.h> |
| #include <linux/pci.h> |
| #include <linux/stddef.h> |
| #include <asm/processor.h> |
| |
| #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_probe_legacy(void) |
| { |
| #ifdef CONFIG_PCI |
| struct pci_dev *dev; |
| if ((dev = pci_get_class(PCI_CLASS_BRIDGE_EISA << 8, NULL)) != NULL || |
| (dev = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL)) != NULL) { |
| pci_dev_put(dev); |
| |
| return 1; |
| } |
| return 0; |
| #elif defined(CONFIG_EISA) || defined(CONFIG_ISA) |
| return 1; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static __inline__ int ide_default_irq(unsigned long base) |
| { |
| if (ide_probe_legacy()) |
| 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; |
| } |
| else |
| return 0; |
| } |
| |
| static __inline__ unsigned long ide_default_io_base(int index) |
| { |
| if (ide_probe_legacy()) |
| switch (index) { |
| case 0: |
| return 0x1f0; |
| case 1: |
| return 0x170; |
| case 2: |
| return 0x1e8; |
| case 3: |
| return 0x168; |
| case 4: |
| return 0x1e0; |
| case 5: |
| return 0x160; |
| default: |
| return 0; |
| } |
| else |
| 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 |
| |
| /* MIPS port and memory-mapped I/O string operations. */ |
| |
| static inline void __ide_flush_dcache_range(unsigned long addr, unsigned long size) |
| { |
| if (cpu_has_dc_aliases) { |
| unsigned long end = addr + size; |
| for (; addr < end; addr += PAGE_SIZE) |
| flush_dcache_page(virt_to_page(addr)); |
| } |
| } |
| |
| static inline void __ide_insw(unsigned long port, void *addr, |
| unsigned int count) |
| { |
| insw(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 2); |
| } |
| |
| static inline void __ide_insl(unsigned long port, void *addr, unsigned int count) |
| { |
| insl(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 4); |
| } |
| |
| static inline void __ide_outsw(unsigned long port, const void *addr, |
| unsigned long count) |
| { |
| outsw(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 2); |
| } |
| |
| static inline void __ide_outsl(unsigned long port, const void *addr, |
| unsigned long count) |
| { |
| outsl(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 4); |
| } |
| |
| static inline void __ide_mm_insw(void __iomem *port, void *addr, u32 count) |
| { |
| readsw(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 2); |
| } |
| |
| static inline void __ide_mm_insl(void __iomem *port, void *addr, u32 count) |
| { |
| readsl(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 4); |
| } |
| |
| static inline void __ide_mm_outsw(void __iomem *port, void *addr, u32 count) |
| { |
| writesw(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 2); |
| } |
| |
| static inline void __ide_mm_outsl(void __iomem * port, void *addr, u32 count) |
| { |
| writesl(port, addr, count); |
| __ide_flush_dcache_range((unsigned long)addr, count * 4); |
| } |
| |
| /* ide_insw calls insw, not __ide_insw. Why? */ |
| #undef insw |
| #undef insl |
| #define insw(port, addr, count) __ide_insw(port, addr, count) |
| #define insl(port, addr, count) __ide_insl(port, addr, count) |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* __ASM_MACH_GENERIC_IDE_H */ |