diff options
Diffstat (limited to 'include/asm-sparc/io.h')
-rw-r--r-- | include/asm-sparc/io.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/include/asm-sparc/io.h b/include/asm-sparc/io.h new file mode 100644 index 000000000..5aa1a3fac --- /dev/null +++ b/include/asm-sparc/io.h @@ -0,0 +1,100 @@ +#ifndef __SPARC_IO_H +#define __SPARC_IO_H + +#include <asm/page.h> /* IO address mapping routines need this */ + +/* + * Defines for io operations on the Sparc. Whether a memory access is going + * to i/o sparc is encoded in the pte. The type bits determine whether this + * is i/o sparc, on board memory, or VME space for VME cards. I think VME + * space only works on sun4's + */ + +extern inline unsigned long inb_local(unsigned long addr) +{ + return 0; +} + +extern inline void outb_local(unsigned char b, unsigned long addr) +{ + return; +} + +extern inline unsigned long inb(unsigned long addr) +{ + return 0; +} + +extern inline unsigned long inw(unsigned long addr) +{ + return 0; +} + +extern inline unsigned long inl(unsigned long addr) +{ + return 0; +} + +extern inline void outb(unsigned char b, unsigned long addr) +{ + return; +} + +extern inline void outw(unsigned short b, unsigned long addr) +{ + return; +} + +extern inline void outl(unsigned int b, unsigned long addr) +{ + return; +} + +/* + * Memory functions + */ +extern inline unsigned long readb(unsigned long addr) +{ + return 0; +} + +extern inline unsigned long readw(unsigned long addr) +{ + return 0; +} + +extern inline unsigned long readl(unsigned long addr) +{ + return 0; +} + +extern inline void writeb(unsigned short b, unsigned long addr) +{ + return; +} + +extern inline void writew(unsigned short b, unsigned long addr) +{ + return; +} + +extern inline void writel(unsigned int b, unsigned long addr) +{ + return; +} + +#define inb_p inb +#define outb_p outb + +extern inline void mapioaddr(unsigned long physaddr, unsigned long virt_addr) +{ + unsigned long page_entry; + + page_entry = physaddr >> PAGE_SHIFT; + page_entry |= (PTE_V | PTE_ACC | PTE_NC | PTE_IO); /* kernel io addr */ + + put_pte(virt_addr, page_entry); + return; +} + +#endif /* !(__SPARC_IO_H) */ |