root/include/asm-sparc/io.h

/* */

INCLUDED FROM

DEFINITIONS

1. inb_local
2. outb_local
3. inb
4. inw
5. outb
6. outw
7. outl
8. readb
9. readw
10. readl
11. writeb
12. writew
13. writel
14. mapioaddr

   1 #ifndef __SPARC_IO_H
   2 #define __SPARC_IO_H
   3 
   4 #include <asm/page.h>      /* IO address mapping routines need this */
   5 
   6 /*
   7  * Defines for io operations on the Sparc. Whether a memory access is going
   8  * to i/o sparc is encoded in the pte. The type bits determine whether this
   9  * is i/o sparc, on board memory, or VME space for VME cards. I think VME
  10  * space only works on sun4's
  11  */
  12 
  13 extern inline unsigned long inb_local(unsigned long addr)
     /*  */
  14 {
  15   return 0;
  16 }
  17 
  18 extern inline void outb_local(unsigned char b, unsigned long addr)
     /*  */
  19 {
  20   return;
  21 }
  22 
  23 extern inline unsigned long inb(unsigned long addr)
     /*  */
  24 {
  25   return 0;
  26 }
  27 
  28 extern inline unsigned long inw(unsigned long addr)
     /*  */
  29 {
  30   return 0;
  31 }
  32 
  33 extern inline unsigned long inl(unsigned long addr)
  34 {
  35   return 0;
  36 }
  37 
  38 extern inline void outb(unsigned char b, unsigned long addr)
     /*  */
  39 {
  40   return;
  41 }
  42 
  43 extern inline void outw(unsigned short b, unsigned long addr)
     /*  */
  44 {
  45   return;
  46 }
  47 
  48 extern inline void outl(unsigned int b, unsigned long addr)
     /*  */
  49 {
  50   return;
  51 }
  52 
  53 /*
  54  * Memory functions
  55  */
  56 extern inline unsigned long readb(unsigned long addr)
     /*  */
  57 {
  58   return 0;
  59 }
  60 
  61 extern inline unsigned long readw(unsigned long addr)
     /*  */
  62 {
  63   return 0;
  64 }
  65 
  66 extern inline unsigned long readl(unsigned long addr)
     /*  */
  67 {
  68   return 0;
  69 }
  70 
  71 extern inline void writeb(unsigned short b, unsigned long addr)
     /*  */
  72 {
  73   return;
  74 }
  75 
  76 extern inline void writew(unsigned short b, unsigned long addr)
     /*  */
  77 {
  78   return;
  79 }
  80 
  81 extern inline void writel(unsigned int b, unsigned long addr)
     /*  */
  82 {
  83   return;
  84 }
  85 
  86 #define inb_p inb
  87 #define outb_p outb
  88 
  89 extern inline void mapioaddr(unsigned long physaddr, unsigned long virt_addr)
     /*  */
  90 {
  91   unsigned long page_entry;
  92 
  93   page_entry = physaddr >> PAGE_SHIFT;
  94   page_entry |= (PTE_V | PTE_ACC | PTE_NC | PTE_IO);  /* kernel io addr */
  95 
  96   put_pte(virt_addr, page_entry);
  97   return;
  98 }
  99 
 100 #endif /* !(__SPARC_IO_H) */

/* */