acrn-kernel/arch/sh/boards/titan/io.c

127 lines
3.0 KiB
C

/*
* I/O routines for Titan
*/
#include <linux/pci.h>
#include <asm/machvec.h>
#include <asm/addrspace.h>
#include <asm/titan.h>
#include <asm/io.h>
static inline unsigned int port2adr(unsigned int port)
{
maybebadio((unsigned long)port);
return port;
}
u8 titan_inb(unsigned long port)
{
if (PXSEG(port))
return ctrl_inb(port);
else if (is_pci_ioaddr(port))
return ctrl_inb(pci_ioaddr(port));
return ctrl_inw(port2adr(port)) & 0xff;
}
u8 titan_inb_p(unsigned long port)
{
u8 v;
if (PXSEG(port))
v = ctrl_inb(port);
else if (is_pci_ioaddr(port))
v = ctrl_inb(pci_ioaddr(port));
else
v = ctrl_inw(port2adr(port)) & 0xff;
ctrl_delay();
return v;
}
u16 titan_inw(unsigned long port)
{
if (PXSEG(port))
return ctrl_inw(port);
else if (is_pci_ioaddr(port))
return ctrl_inw(pci_ioaddr(port));
else if (port >= 0x2000)
return ctrl_inw(port2adr(port));
else
maybebadio(port);
return 0;
}
u32 titan_inl(unsigned long port)
{
if (PXSEG(port))
return ctrl_inl(port);
else if (is_pci_ioaddr(port))
return ctrl_inl(pci_ioaddr(port));
else if (port >= 0x2000)
return ctrl_inw(port2adr(port));
else
maybebadio(port);
return 0;
}
void titan_outb(u8 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outb(value, port);
else if (is_pci_ioaddr(port))
ctrl_outb(value, pci_ioaddr(port));
else
ctrl_outw(value, port2adr(port));
}
void titan_outb_p(u8 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outb(value, port);
else if (is_pci_ioaddr(port))
ctrl_outb(value, pci_ioaddr(port));
else
ctrl_outw(value, port2adr(port));
ctrl_delay();
}
void titan_outw(u16 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outw(value, port);
else if (is_pci_ioaddr(port))
ctrl_outw(value, pci_ioaddr(port));
else if (port >= 0x2000)
ctrl_outw(value, port2adr(port));
else
maybebadio(port);
}
void titan_outl(u32 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outl(value, port);
else if (is_pci_ioaddr(port))
ctrl_outl(value, pci_ioaddr(port));
else
maybebadio(port);
}
void titan_insl(unsigned long port, void *dst, unsigned long count)
{
maybebadio(port);
}
void titan_outsl(unsigned long port, const void *src, unsigned long count)
{
maybebadio(port);
}
void __iomem *titan_ioport_map(unsigned long port, unsigned int size)
{
if (PXSEG(port) || is_pci_memaddr(port))
return (void __iomem *)port;
else if (is_pci_ioaddr(port))
return (void __iomem *)pci_ioaddr(port);
return (void __iomem *)port2adr(port);
}