summaryrefslogtreecommitdiffstats
path: root/include/asm-arm26/io.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm26/io.h')
-rw-r--r--include/asm-arm26/io.h434
1 files changed, 0 insertions, 434 deletions
diff --git a/include/asm-arm26/io.h b/include/asm-arm26/io.h
deleted file mode 100644
index a5a7a4d5e09c..000000000000
--- a/include/asm-arm26/io.h
+++ /dev/null
@@ -1,434 +0,0 @@
-/*
- * linux/include/asm-arm/io.h
- *
- * Copyright (C) 1996-2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Modifications:
- * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both
- * constant addresses and variable addresses.
- * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture
- * specific IO header files.
- * 27-Mar-1999 PJB Second parameter of memcpy_toio is const..
- * 04-Apr-1999 PJB Added check_signature.
- * 12-Dec-1999 RMK More cleanups
- * 18-Jun-2000 RMK Removed virt_to_* and friends definitions
- */
-#ifndef __ASM_ARM_IO_H
-#define __ASM_ARM_IO_H
-
-#ifdef __KERNEL__
-
-#include <linux/types.h>
-#include <asm/byteorder.h>
-#include <asm/memory.h>
-#include <asm/hardware.h>
-
-/*
- * Generic IO read/write. These perform native-endian accesses. Note
- * that some architectures will want to re-define __raw_{read,write}w.
- */
-extern void __raw_writesb(unsigned int addr, const void *data, int bytelen);
-extern void __raw_writesw(unsigned int addr, const void *data, int wordlen);
-extern void __raw_writesl(unsigned int addr, const void *data, int longlen);
-
-extern void __raw_readsb(unsigned int addr, void *data, int bytelen);
-extern void __raw_readsw(unsigned int addr, void *data, int wordlen);
-extern void __raw_readsl(unsigned int addr, void *data, int longlen);
-
-#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v))
-#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v))
-#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v))
-
-#define __raw_readb(a) (*(volatile unsigned char *)(a))
-#define __raw_readw(a) (*(volatile unsigned short *)(a))
-#define __raw_readl(a) (*(volatile unsigned int *)(a))
-
-
-/*
- * Bad read/write accesses...
- */
-extern void __readwrite_bug(const char *fn);
-
-/*
- * Now, pick up the machine-defined IO definitions
- */
-
-#define IO_SPACE_LIMIT 0xffffffff
-
-/*
- * GCC is totally crap at loading/storing data. We try to persuade it
- * to do the right thing by using these whereever possible instead of
- * the above.
- */
-#define __arch_base_getb(b,o) \
- ({ \
- unsigned int v, r = (b); \
- __asm__ __volatile__( \
- "ldrb %0, [%1, %2]" \
- : "=r" (v) \
- : "r" (r), "Ir" (o)); \
- v; \
- })
-
-#define __arch_base_getl(b,o) \
- ({ \
- unsigned int v, r = (b); \
- __asm__ __volatile__( \
- "ldr %0, [%1, %2]" \
- : "=r" (v) \
- : "r" (r), "Ir" (o)); \
- v; \
- })
-
-#define __arch_base_putb(v,b,o) \
- ({ \
- unsigned int r = (b); \
- __asm__ __volatile__( \
- "strb %0, [%1, %2]" \
- : \
- : "r" (v), "r" (r), "Ir" (o)); \
- })
-
-#define __arch_base_putl(v,b,o) \
- ({ \
- unsigned int r = (b); \
- __asm__ __volatile__( \
- "str %0, [%1, %2]" \
- : \
- : "r" (v), "r" (r), "Ir" (o)); \
- })
-
-/*
- * We use two different types of addressing - PC style addresses, and ARM
- * addresses. PC style accesses the PC hardware with the normal PC IO
- * addresses, eg 0x3f8 for serial#1. ARM addresses are 0x80000000+
- * and are translated to the start of IO. Note that all addresses are
- * shifted left!
- */
-#define __PORT_PCIO(x) (!((x) & 0x80000000))
-
-/*
- * Dynamic IO functions - let the compiler
- * optimize the expressions
- */
-static inline void __outb (unsigned int value, unsigned int port)
-{
- unsigned long temp;
- __asm__ __volatile__(
- "tst %2, #0x80000000\n\t"
- "mov %0, %4\n\t"
- "addeq %0, %0, %3\n\t"
- "strb %1, [%0, %2, lsl #2] @ outb"
- : "=&r" (temp)
- : "r" (value), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE)
- : "cc");
-}
-
-static inline void __outw (unsigned int value, unsigned int port)
-{
- unsigned long temp;
- __asm__ __volatile__(
- "tst %2, #0x80000000\n\t"
- "mov %0, %4\n\t"
- "addeq %0, %0, %3\n\t"
- "str %1, [%0, %2, lsl #2] @ outw"
- : "=&r" (temp)
- : "r" (value|value<<16), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE)
- : "cc");
-}
-
-static inline void __outl (unsigned int value, unsigned int port)
-{
- unsigned long temp;
- __asm__ __volatile__(
- "tst %2, #0x80000000\n\t"
- "mov %0, %4\n\t"
- "addeq %0, %0, %3\n\t"
- "str %1, [%0, %2, lsl #2] @ outl"
- : "=&r" (temp)
- : "r" (value), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE)
- : "cc");
-}
-
-#define DECLARE_DYN_IN(sz,fnsuffix,instr) \
-static inline unsigned sz __in##fnsuffix (unsigned int port) \
-{ \
- unsigned long temp, value; \
- __asm__ __volatile__( \
- "tst %2, #0x80000000\n\t" \
- "mov %0, %4\n\t" \
- "addeq %0, %0, %3\n\t" \
- "ldr" instr " %1, [%0, %2, lsl #2] @ in" #fnsuffix \
- : "=&r" (temp), "=r" (value) \
- : "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE) \
- : "cc"); \
- return (unsigned sz)value; \
-}
-
-static inline unsigned int __ioaddr (unsigned int port) \
-{ \
- if (__PORT_PCIO(port)) \
- return (unsigned int)(PCIO_BASE + (port << 2)); \
- else \
- return (unsigned int)(IO_BASE + (port << 2)); \
-}
-
-#define DECLARE_IO(sz,fnsuffix,instr) \
- DECLARE_DYN_IN(sz,fnsuffix,instr)
-
-DECLARE_IO(char,b,"b")
-DECLARE_IO(short,w,"")
-DECLARE_IO(int,l,"")
-
-#undef DECLARE_IO
-#undef DECLARE_DYN_IN
-
-/*
- * Constant address IO functions
- *
- * These have to be macros for the 'J' constraint to work -
- * +/-4096 immediate operand.
- */
-#define __outbc(value,port) \
-({ \
- if (__PORT_PCIO((port))) \
- __asm__ __volatile__( \
- "strb %0, [%1, %2] @ outbc" \
- : : "r" (value), "r" (PCIO_BASE), "Jr" ((port) << 2)); \
- else \
- __asm__ __volatile__( \
- "strb %0, [%1, %2] @ outbc" \
- : : "r" (value), "r" (IO_BASE), "r" ((port) << 2)); \
-})
-
-#define __inbc(port) \
-({ \
- unsigned char result; \
- if (__PORT_PCIO((port))) \
- __asm__ __volatile__( \
- "ldrb %0, [%1, %2] @ inbc" \
- : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \
- else \
- __asm__ __volatile__( \
- "ldrb %0, [%1, %2] @ inbc" \
- : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \
- result; \
-})
-
-#define __outwc(value,port) \
-({ \
- unsigned long v = value; \
- if (__PORT_PCIO((port))) \
- __asm__ __volatile__( \
- "str %0, [%1, %2] @ outwc" \
- : : "r" (v|v<<16), "r" (PCIO_BASE), "Jr" ((port) << 2)); \
- else \
- __asm__ __volatile__( \
- "str %0, [%1, %2] @ outwc" \
- : : "r" (v|v<<16), "r" (IO_BASE), "r" ((port) << 2)); \
-})
-
-#define __inwc(port) \
-({ \
- unsigned short result; \
- if (__PORT_PCIO((port))) \
- __asm__ __volatile__( \
- "ldr %0, [%1, %2] @ inwc" \
- : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \
- else \
- __asm__ __volatile__( \
- "ldr %0, [%1, %2] @ inwc" \
- : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \
- result & 0xffff; \
-})
-
-#define __outlc(value,port) \
-({ \
- unsigned long v = value; \
- if (__PORT_PCIO((port))) \
- __asm__ __volatile__( \
- "str %0, [%1, %2] @ outlc" \
- : : "r" (v), "r" (PCIO_BASE), "Jr" ((port) << 2)); \
- else \
- __asm__ __volatile__( \
- "str %0, [%1, %2] @ outlc" \
- : : "r" (v), "r" (IO_BASE), "r" ((port) << 2)); \
-})
-
-#define __inlc(port) \
-({ \
- unsigned long result; \
- if (__PORT_PCIO((port))) \
- __asm__ __volatile__( \
- "ldr %0, [%1, %2] @ inlc" \
- : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \
- else \
- __asm__ __volatile__( \
- "ldr %0, [%1, %2] @ inlc" \
- : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \
- result; \
-})
-
-#define __ioaddrc(port) \
-({ \
- unsigned long addr; \
- if (__PORT_PCIO((port))) \
- addr = PCIO_BASE + ((port) << 2); \
- else \
- addr = IO_BASE + ((port) << 2); \
- addr; \
-})
-
-#define inb(p) (__builtin_constant_p((p)) ? __inbc(p) : __inb(p))
-#define inw(p) (__builtin_constant_p((p)) ? __inwc(p) : __inw(p))
-#define inl(p) (__builtin_constant_p((p)) ? __inlc(p) : __inl(p))
-#define outb(v,p) (__builtin_constant_p((p)) ? __outbc(v,p) : __outb(v,p))
-#define outw(v,p) (__builtin_constant_p((p)) ? __outwc(v,p) : __outw(v,p))
-#define outl(v,p) (__builtin_constant_p((p)) ? __outlc(v,p) : __outl(v,p))
-#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
-
-/* JMA 18.02.03 added sb,sl from arm/io.h, changing io to ioaddr */
-
-#define outsb(p,d,l) __raw_writesb(__ioaddr(p),d,l)
-#define outsw(p,d,l) __raw_writesw(__ioaddr(p),d,l)
-#define outsl(p,d,l) __raw_writesl(__ioaddr(p),d,l)
-
-#define insb(p,d,l) __raw_readsb(__ioaddr(p),d,l)
-#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l)
-#define insl(p,d,l) __raw_readsl(__ioaddr(p),d,l)
-
-#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l)
-#define outsw(p,d,l) __raw_writesw(__ioaddr(p),d,l)
-
-#define readb(c) (__readwrite_bug("readb"),0)
-#define readw(c) (__readwrite_bug("readw"),0)
-#define readl(c) (__readwrite_bug("readl"),0)
-#define readb_relaxed(addr) readb(addr)
-#define readw_relaxed(addr) readw(addr)
-#define readl_relaxed(addr) readl(addr)
-#define writeb(v,c) __readwrite_bug("writeb")
-#define writew(v,c) __readwrite_bug("writew")
-#define writel(v,c) __readwrite_bug("writel")
-
-#define readsw(p,d,l) (__readwrite_bug("readsw"),0)
-#define readsl(p,d,l) (__readwrite_bug("readsl"),0)
-#define writesw(p,d,l) __readwrite_bug("writesw")
-#define writesl(p,d,l) __readwrite_bug("writesl")
-
-#define mmiowb()
-
-/* the following macro is deprecated */
-#define ioaddr(port) __ioaddr((port))
-
-/*
- * No ioremap support here.
- */
-#define __arch_ioremap(c,s,f,a) ((void *)(c))
-#define __arch_iounmap(c) do { } while (0)
-
-
-#if defined(__arch_putb) || defined(__arch_putw) || defined(__arch_putl) || \
- defined(__arch_getb) || defined(__arch_getw) || defined(__arch_getl)
-#warning machine class uses old __arch_putw or __arch_getw
-#endif
-
-/*
- * IO port access primitives
- * -------------------------
- *
- * The ARM doesn't have special IO access instructions; all IO is memory
- * mapped. Note that these are defined to perform little endian accesses
- * only. Their primary purpose is to access PCI and ISA peripherals.
- *
- * Note that for a big endian machine, this implies that the following
- * big endian mode connectivity is in place, as described by numerious
- * ARM documents:
- *
- * PCI: D0-D7 D8-D15 D16-D23 D24-D31
- * ARM: D24-D31 D16-D23 D8-D15 D0-D7
- *
- * The machine specific io.h include defines __io to translate an "IO"
- * address to a memory address.
- *
- * Note that we prevent GCC re-ordering or caching values in expressions
- * by introducing sequence points into the in*() definitions. Note that
- * __raw_* do not guarantee this behaviour.
- */
-/*
-#define outsb(p,d,l) __raw_writesb(__io(p),d,l)
-#define outsw(p,d,l) __raw_writesw(__io(p),d,l)
-
-#define insb(p,d,l) __raw_readsb(__io(p),d,l)
-#define insw(p,d,l) __raw_readsw(__io(p),d,l)
-*/
-#define outb_p(val,port) outb((val),(port))
-#define outw_p(val,port) outw((val),(port))
-#define inb_p(port) inb((port))
-#define inw_p(port) inw((port))
-#define inl_p(port) inl((port))
-
-#define outsb_p(port,from,len) outsb(port,from,len)
-#define outsw_p(port,from,len) outsw(port,from,len)
-#define insb_p(port,to,len) insb(port,to,len)
-#define insw_p(port,to,len) insw(port,to,len)
-
-/*
- * String version of IO memory access ops:
- */
-extern void _memcpy_fromio(void *, unsigned long, size_t);
-extern void _memcpy_toio(unsigned long, const void *, size_t);
-extern void _memset_io(unsigned long, int, size_t);
-
-/*
- * ioremap and friends.
- *
- * ioremap takes a PCI memory address, as specified in
- * Documentation/IO-mapping.txt.
- */
-extern void * __ioremap(unsigned long, size_t, unsigned long, unsigned long);
-extern void __iounmap(void *addr);
-
-#ifndef __arch_ioremap
-#define ioremap(cookie,size) __ioremap(cookie,size,0,1)
-#define ioremap_nocache(cookie,size) __ioremap(cookie,size,0,1)
-#define iounmap(cookie) __iounmap(cookie)
-#else
-#define ioremap(cookie,size) __arch_ioremap((cookie),(size),0,1)
-#define ioremap_nocache(cookie,size) __arch_ioremap((cookie),(size),0,1)
-#define iounmap(cookie) __arch_iounmap(cookie)
-#endif
-
-/*
- * DMA-consistent mapping functions. These allocate/free a region of
- * uncached, unwrite-buffered mapped memory space for use with DMA
- * devices. This is the "generic" version. The PCI specific version
- * is in pci.h
- */
-extern void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle);
-extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle);
-extern void consistent_sync(void *vaddr, size_t size, int rw);
-
-/*
- * can the hardware map this into one segment or not, given no other
- * constraints.
- */
-#define BIOVEC_MERGEABLE(vec1, vec2) \
- ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
-
-/*
- * 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 /* __KERNEL__ */
-#endif /* __ASM_ARM_IO_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 10:06:32 +0100