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- /*
- * linux/include/asm-m68k/io.h
- *
- * 4/1/00 RZ: - rewritten to avoid clashes between ISA/PCI and other
- * IO access
- * - added Q40 support
- * - added skeleton for GG-II and Amiga PCMCIA
- * 2/3/01 RZ: - moved a few more defs into raw_io.h
- *
- * inX/outX/readX/writeX should not be used by any driver unless it does
- * ISA or PCI access. Other drivers should use function defined in raw_io.h
- * or define its own macros on top of these.
- *
- * inX(),outX() are for PCI and ISA I/O
- * readX(),writeX() are for PCI memory
- * isa_readX(),isa_writeX() are for ISA memory
- *
- * moved mem{cpy,set}_*io inside CONFIG_PCI
- */
-
- #ifndef _IO_H
- #define _IO_H
-
- #ifdef __KERNEL__
-
- #include <linux/compiler.h>
- #include <asm/raw_io.h>
- #include <asm/virtconvert.h>
-
-
- #ifdef CONFIG_ATARI
- #include <asm/atarihw.h>
- #endif
-
-
- /*
- * IO/MEM definitions for various ISA bridges
- */
-
-
- #ifdef CONFIG_Q40
-
- #define q40_isa_io_base 0xff400000
- #define q40_isa_mem_base 0xff800000
-
- #define Q40_ISA_IO_B(ioaddr) (q40_isa_io_base+1+4*((unsigned long)(ioaddr)))
- #define Q40_ISA_IO_W(ioaddr) (q40_isa_io_base+ 4*((unsigned long)(ioaddr)))
- #define Q40_ISA_MEM_B(madr) (q40_isa_mem_base+1+4*((unsigned long)(madr)))
- #define Q40_ISA_MEM_W(madr) (q40_isa_mem_base+ 4*((unsigned long)(madr)))
-
- #define MULTI_ISA 0
- #endif /* Q40 */
-
- /* GG-II Zorro to ISA bridge */
- #ifdef CONFIG_GG2
-
- extern unsigned long gg2_isa_base;
- #define GG2_ISA_IO_B(ioaddr) (gg2_isa_base+1+((unsigned long)(ioaddr)*4))
- #define GG2_ISA_IO_W(ioaddr) (gg2_isa_base+ ((unsigned long)(ioaddr)*4))
- #define GG2_ISA_MEM_B(madr) (gg2_isa_base+1+(((unsigned long)(madr)*4) & 0xfffff))
- #define GG2_ISA_MEM_W(madr) (gg2_isa_base+ (((unsigned long)(madr)*4) & 0xfffff))
-
- #ifndef MULTI_ISA
- #define MULTI_ISA 0
- #else
- #undef MULTI_ISA
- #define MULTI_ISA 1
- #endif
- #endif /* GG2 */
-
- #ifdef CONFIG_AMIGA_PCMCIA
- #include <asm/amigayle.h>
-
- #define AG_ISA_IO_B(ioaddr) ( GAYLE_IO+(ioaddr)+(((ioaddr)&1)*GAYLE_ODD) )
- #define AG_ISA_IO_W(ioaddr) ( GAYLE_IO+(ioaddr) )
-
- #ifndef MULTI_ISA
- #define MULTI_ISA 0
- #else
- #undef MULTI_ISA
- #define MULTI_ISA 1
- #endif
- #endif /* AMIGA_PCMCIA */
-
-
-
- #ifdef CONFIG_ISA
-
- #if MULTI_ISA == 0
- #undef MULTI_ISA
- #endif
-
- #define Q40_ISA (1)
- #define GG2_ISA (2)
- #define AG_ISA (3)
-
- #if defined(CONFIG_Q40) && !defined(MULTI_ISA)
- #define ISA_TYPE Q40_ISA
- #define ISA_SEX 0
- #endif
- #if defined(CONFIG_AMIGA_PCMCIA) && !defined(MULTI_ISA)
- #define ISA_TYPE AG_ISA
- #define ISA_SEX 1
- #endif
- #if defined(CONFIG_GG2) && !defined(MULTI_ISA)
- #define ISA_TYPE GG2_ISA
- #define ISA_SEX 0
- #endif
-
- #ifdef MULTI_ISA
- extern int isa_type;
- extern int isa_sex;
-
- #define ISA_TYPE isa_type
- #define ISA_SEX isa_sex
- #endif
-
- /*
- * define inline addr translation functions. Normally only one variant will
- * be compiled in so the case statement will be optimised away
- */
-
- static inline u8 __iomem *isa_itb(unsigned long addr)
- {
- switch(ISA_TYPE)
- {
- #ifdef CONFIG_Q40
- case Q40_ISA: return (u8 __iomem *)Q40_ISA_IO_B(addr);
- #endif
- #ifdef CONFIG_GG2
- case GG2_ISA: return (u8 __iomem *)GG2_ISA_IO_B(addr);
- #endif
- #ifdef CONFIG_AMIGA_PCMCIA
- case AG_ISA: return (u8 __iomem *)AG_ISA_IO_B(addr);
- #endif
- default: return NULL; /* avoid warnings, just in case */
- }
- }
- static inline u16 __iomem *isa_itw(unsigned long addr)
- {
- switch(ISA_TYPE)
- {
- #ifdef CONFIG_Q40
- case Q40_ISA: return (u16 __iomem *)Q40_ISA_IO_W(addr);
- #endif
- #ifdef CONFIG_GG2
- case GG2_ISA: return (u16 __iomem *)GG2_ISA_IO_W(addr);
- #endif
- #ifdef CONFIG_AMIGA_PCMCIA
- case AG_ISA: return (u16 __iomem *)AG_ISA_IO_W(addr);
- #endif
- default: return NULL; /* avoid warnings, just in case */
- }
- }
- static inline u8 __iomem *isa_mtb(unsigned long addr)
- {
- switch(ISA_TYPE)
- {
- #ifdef CONFIG_Q40
- case Q40_ISA: return (u8 __iomem *)Q40_ISA_MEM_B(addr);
- #endif
- #ifdef CONFIG_GG2
- case GG2_ISA: return (u8 __iomem *)GG2_ISA_MEM_B(addr);
- #endif
- #ifdef CONFIG_AMIGA_PCMCIA
- case AG_ISA: return (u8 __iomem *)addr;
- #endif
- default: return NULL; /* avoid warnings, just in case */
- }
- }
- static inline u16 __iomem *isa_mtw(unsigned long addr)
- {
- switch(ISA_TYPE)
- {
- #ifdef CONFIG_Q40
- case Q40_ISA: return (u16 __iomem *)Q40_ISA_MEM_W(addr);
- #endif
- #ifdef CONFIG_GG2
- case GG2_ISA: return (u16 __iomem *)GG2_ISA_MEM_W(addr);
- #endif
- #ifdef CONFIG_AMIGA_PCMCIA
- case AG_ISA: return (u16 __iomem *)addr;
- #endif
- default: return NULL; /* avoid warnings, just in case */
- }
- }
-
-
- #define isa_inb(port) in_8(isa_itb(port))
- #define isa_inw(port) (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port)))
- #define isa_outb(val,port) out_8(isa_itb(port),(val))
- #define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val)))
-
- #define isa_readb(p) in_8(isa_mtb((unsigned long)(p)))
- #define isa_readw(p) \
- (ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \
- : in_le16(isa_mtw((unsigned long)(p))))
- #define isa_writeb(val,p) out_8(isa_mtb((unsigned long)(p)),(val))
- #define isa_writew(val,p) \
- (ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \
- : out_le16(isa_mtw((unsigned long)(p)),(val)))
-
- static inline void isa_delay(void)
- {
- switch(ISA_TYPE)
- {
- #ifdef CONFIG_Q40
- case Q40_ISA: isa_outb(0,0x80); break;
- #endif
- #ifdef CONFIG_GG2
- case GG2_ISA: break;
- #endif
- #ifdef CONFIG_AMIGA_PCMCIA
- case AG_ISA: break;
- #endif
- default: break; /* avoid warnings */
- }
- }
-
- #define isa_inb_p(p) ({u8 v=isa_inb(p);isa_delay();v;})
- #define isa_outb_p(v,p) ({isa_outb((v),(p));isa_delay();})
- #define isa_inw_p(p) ({u16 v=isa_inw(p);isa_delay();v;})
- #define isa_outw_p(v,p) ({isa_outw((v),(p));isa_delay();})
- #define isa_inl_p(p) ({u32 v=isa_inl(p);isa_delay();v;})
- #define isa_outl_p(v,p) ({isa_outl((v),(p));isa_delay();})
-
- #define isa_insb(port, buf, nr) raw_insb(isa_itb(port), (u8 *)(buf), (nr))
- #define isa_outsb(port, buf, nr) raw_outsb(isa_itb(port), (u8 *)(buf), (nr))
-
- #define isa_insw(port, buf, nr) \
- (ISA_SEX ? raw_insw(isa_itw(port), (u16 *)(buf), (nr)) : \
- raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
-
- #define isa_outsw(port, buf, nr) \
- (ISA_SEX ? raw_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \
- raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
- #endif /* CONFIG_ISA */
-
-
- #if defined(CONFIG_ISA) && !defined(CONFIG_PCI)
- #define inb isa_inb
- #define inb_p isa_inb_p
- #define outb isa_outb
- #define outb_p isa_outb_p
- #define inw isa_inw
- #define inw_p isa_inw_p
- #define outw isa_outw
- #define outw_p isa_outw_p
- #define inl isa_inw
- #define inl_p isa_inw_p
- #define outl isa_outw
- #define outl_p isa_outw_p
- #define insb isa_insb
- #define insw isa_insw
- #define outsb isa_outsb
- #define outsw isa_outsw
- #define readb isa_readb
- #define readw isa_readw
- #define writeb isa_writeb
- #define writew isa_writew
- #endif /* CONFIG_ISA */
-
- #if defined(CONFIG_PCI)
-
- #define inl(port) in_le32(port)
- #define outl(val,port) out_le32((port),(val))
- #define readl(addr) in_le32(addr)
- #define writel(val,addr) out_le32((addr),(val))
-
- /* those can be defined for both ISA and PCI - it won't work though */
- #define readb(addr) in_8(addr)
- #define readw(addr) in_le16(addr)
- #define writeb(val,addr) out_8((addr),(val))
- #define writew(val,addr) out_le16((addr),(val))
-
- #define readb_relaxed(addr) readb(addr)
- #define readw_relaxed(addr) readw(addr)
- #define readl_relaxed(addr) readl(addr)
-
- #ifndef CONFIG_ISA
- #define inb(port) in_8(port)
- #define outb(val,port) out_8((port),(val))
- #define inw(port) in_le16(port)
- #define outw(val,port) out_le16((port),(val))
-
- #else
- /*
- * kernel with both ISA and PCI compiled in, those have
- * conflicting defs for in/out. Simply consider port < 1024
- * ISA and everything else PCI. read,write not defined
- * in this case
- */
- #define inb(port) ((port)<1024 ? isa_inb(port) : in_8(port))
- #define inb_p(port) ((port)<1024 ? isa_inb_p(port) : in_8(port))
- #define inw(port) ((port)<1024 ? isa_inw(port) : in_le16(port))
- #define inw_p(port) ((port)<1024 ? isa_inw_p(port) : in_le16(port))
- #define inl(port) ((port)<1024 ? isa_inl(port) : in_le32(port))
- #define inl_p(port) ((port)<1024 ? isa_inl_p(port) : in_le32(port))
-
- #define outb(val,port) ((port)<1024 ? isa_outb((val),(port)) : out_8((port),(val)))
- #define outb_p(val,port) ((port)<1024 ? isa_outb_p((val),(port)) : out_8((port),(val)))
- #define outw(val,port) ((port)<1024 ? isa_outw((val),(port)) : out_le16((port),(val)))
- #define outw_p(val,port) ((port)<1024 ? isa_outw_p((val),(port)) : out_le16((port),(val)))
- #define outl(val,port) ((port)<1024 ? isa_outl((val),(port)) : out_le32((port),(val)))
- #define outl_p(val,port) ((port)<1024 ? isa_outl_p((val),(port)) : out_le32((port),(val)))
- #endif
- #endif /* CONFIG_PCI */
-
- #if !defined(CONFIG_ISA) && !defined(CONFIG_PCI) && defined(CONFIG_HP300)
- /*
- * We need to define dummy functions otherwise drivers/serial/8250.c doesn't link
- */
- #define inb(port) 0xff
- #define inb_p(port) 0xff
- #define outb(val,port) do { } while (0)
- #define outb_p(val,port) do { } while (0)
-
- /*
- * These should be valid on any ioremap()ed region
- */
- #define readb(addr) in_8(addr)
- #define writeb(val,addr) out_8((addr),(val))
- #define readl(addr) in_le32(addr)
- #define writel(val,addr) out_le32((addr),(val))
- #endif
-
- #define mmiowb()
-
- static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
- {
- return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
- }
- static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned long size)
- {
- return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
- }
- static inline void __iomem *ioremap_writethrough(unsigned long physaddr,
- unsigned long size)
- {
- return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
- }
- static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
- unsigned long size)
- {
- return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
- }
-
-
- /* m68k caches aren't DMA coherent */
- extern void dma_cache_wback_inv(unsigned long start, unsigned long size);
- extern void dma_cache_wback(unsigned long start, unsigned long size);
- extern void dma_cache_inv(unsigned long start, unsigned long size);
-
-
- #ifndef CONFIG_SUN3
- #define IO_SPACE_LIMIT 0xffff
- #else
- #define IO_SPACE_LIMIT 0x0fffffff
- #endif
-
- #endif /* __KERNEL__ */
-
- #define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1
-
- /*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
- #define xlate_dev_mem_ptr(p) __va(p)
-
- /*
- * Convert a virtual cached pointer to an uncached pointer
- */
- #define xlate_dev_kmem_ptr(p) p
-
- #endif /* _IO_H */
-