/* * 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 */