root/include/asm-x86/visws/lithium.h

INCLUDED FROM

DEFINITIONS

1. li_pcia_write16
2. li_pcia_read16
3. li_pcib_write16
4. li_pcib_read16

#ifndef ASM_X86__VISWS__LITHIUM_H
#define ASM_X86__VISWS__LITHIUM_H

#include <asm/fixmap.h>

/*
 * Lithium is the SGI Visual Workstation I/O ASIC
 */

#define LI_PCI_A_PHYS           0xfc000000      /* Enet is dev 3 */
#define LI_PCI_B_PHYS           0xfd000000      /* PIIX4 is here */

/* see set_fixmap() and asm/fixmap.h */
#define LI_PCIA_VADDR   (fix_to_virt(FIX_LI_PCIA))
#define LI_PCIB_VADDR   (fix_to_virt(FIX_LI_PCIB))

/* Not a standard PCI? (not in linux/pci.h) */
#define LI_PCI_BUSNUM   0x44                    /* lo8: primary, hi8: sub */
#define LI_PCI_INTEN    0x46

/* LI_PCI_INTENT bits */
#define LI_INTA_0       0x0001
#define LI_INTA_1       0x0002
#define LI_INTA_2       0x0004
#define LI_INTA_3       0x0008
#define LI_INTA_4       0x0010
#define LI_INTB         0x0020
#define LI_INTC         0x0040
#define LI_INTD         0x0080

/* More special purpose macros... */
static inline void li_pcia_write16(unsigned long reg, unsigned short v)
{
        *((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
}

static inline unsigned short li_pcia_read16(unsigned long reg)
{
         return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
}

static inline void li_pcib_write16(unsigned long reg, unsigned short v)
{
        *((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
}

static inline unsigned short li_pcib_read16(unsigned long reg)
{
        return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
}

#endif /* ASM_X86__VISWS__LITHIUM_H */