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/*
* Copyright (C) 2001 Ian da Silva, Jeremy Siegel
* Based largely on io_se.c.
*
* I/O routine for Renesas Solutions Highlander R7780RP-1
*
* Initial version only to support LAN access; some
* placeholder code from io_r7780rp.c left in with the
* expectation of later SuperIO and PCMCIA access.
*/
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <asm/r7780rp/r7780rp.h>
#include <asm/addrspace.h>
#include <asm/io.h>
static inline unsigned long port2adr(unsigned int port)
{
if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
if (port == 0x3f6)
return (PA_AREA5_IO + 0x80c);
else
return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1));
else
maybebadio((unsigned long)port);
return port;
}
static inline unsigned long port88796l(unsigned int port, int flag)
{
unsigned long addr;
if (flag)
addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1);
else
addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1) + 0x1000;
return addr;
}
/* The 7780 R7780RP-1 seems to have everything hooked */
/* up pretty normally (nothing on high-bytes only...) so this */
/* shouldn't be needed */
static inline int shifted_port(unsigned long port)
{
/* For IDE registers, value is not shifted */
if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
return 0;
else
return 1;
}
#if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE)
#define CHECK_AX88796L_PORT(port) \
((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20)))
#else
#define CHECK_AX88796L_PORT(port) (0)
#endif
/*
* General outline: remap really low stuff [eventually] to SuperIO,
* stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
* is mapped through the PCI IO window. Stuff with high bits (PXSEG)
* should be way beyond the window, and is used w/o translation for
* compatibility.
*/
u8 r7780rp_inb(unsigned long port)
{
if (CHECK_AX88796L_PORT(port))
return ctrl_inw(port88796l(port, 0)) & 0xff;
else if (PXSEG(port))
return ctrl_inb(port);
else if (is_pci_ioaddr(port) || shifted_port(port))
return ctrl_inb(pci_ioaddr(port));
return ctrl_inw(port2adr(port)) & 0xff;
}
u8 r7780rp_inb_p(unsigned long port)
{
u8 v;
if (CHECK_AX88796L_PORT(port))
v = ctrl_inw(port88796l(port, 0)) & 0xff;
else if (PXSEG(port))
v = ctrl_inb(port);
else if (is_pci_ioaddr(port) || shifted_port(port))
v = ctrl_inb(pci_ioaddr(port));
else
v = ctrl_inw(port2adr(port)) & 0xff;
ctrl_delay();
return v;
}
u16 r7780rp_inw(unsigned long port)
{
if (CHECK_AX88796L_PORT(port))
maybebadio(port);
else if (PXSEG(port))
return ctrl_inw(port);
else if (is_pci_ioaddr(port) || shifted_port(port))
return ctrl_inw(pci_ioaddr(port));
else
maybebadio(port);
return 0;
}
u32 r7780rp_inl(unsigned long port)
{
if (CHECK_AX88796L_PORT(port))
maybebadio(port);
else if (PXSEG(port))
return ctrl_inl(port);
else if (is_pci_ioaddr(port) || shifted_port(port))
return ctrl_inl(pci_ioaddr(port));
else
maybebadio(port);
return 0;
}
void r7780rp_outb(u8 value, unsigned long port)
{
if (CHECK_AX88796L_PORT(port))
ctrl_outw(value, port88796l(port, 0));
else if (PXSEG(port))
ctrl_outb(value, port);
else if (is_pci_ioaddr(port) || shifted_port(port))
ctrl_outb(value, pci_ioaddr(port));
else
ctrl_outw(value, port2adr(port));
}
void r7780rp_outb_p(u8 value, unsigned long port)
{
if (CHECK_AX88796L_PORT(port))
ctrl_outw(value, port88796l(port, 0));
else if (PXSEG(port))
ctrl_outb(value, port);
else if (is_pci_ioaddr(port) || shifted_port(port))
ctrl_outb(value, pci_ioaddr(port));
else
ctrl_outw(value, port2adr(port));
ctrl_delay();
}
void r7780rp_outw(u16 value, unsigned long port)
{
if (CHECK_AX88796L_PORT(port))
maybebadio(port);
else if (PXSEG(port))
ctrl_outw(value, port);
else if (is_pci_ioaddr(port) || shifted_port(port))
ctrl_outw(value, pci_ioaddr(port));
else
maybebadio(port);
}
void r7780rp_outl(u32 value, unsigned long port)
{
if (CHECK_AX88796L_PORT(port))
maybebadio(port);
else if (PXSEG(port))
ctrl_outl(value, port);
else if (is_pci_ioaddr(port) || shifted_port(port))
ctrl_outl(value, pci_ioaddr(port));
else
maybebadio(port);
}
void r7780rp_insb(unsigned long port, void *dst, unsigned long count)
{
volatile u16 *p;
u8 *buf = dst;
if (CHECK_AX88796L_PORT(port)) {
p = (volatile u16 *)port88796l(port, 0);
while (count--)
*buf++ = *p & 0xff;
} else if (PXSEG(port)) {
while (count--)
*buf++ = *(volatile u8 *)port;
} else if (is_pci_ioaddr(port) || shifted_port(port)) {
volatile u8 *bp = (volatile u8 *)pci_ioaddr(port);
while (count--)
*buf++ = *bp;
} else {
p = (volatile u16 *)port2adr(port);
while (count--)
*buf++ = *p & 0xff;
}
}
void r7780rp_insw(unsigned long port, void *dst, unsigned long count)
{
volatile u16 *p;
u16 *buf = dst;
if (CHECK_AX88796L_PORT(port))
p = (volatile u16 *)port88796l(port, 1);
else if (PXSEG(port))
p = (volatile u16 *)port;
else if (is_pci_ioaddr(port) || shifted_port(port))
p = (volatile u16 *)pci_ioaddr(port);
else
p = (volatile u16 *)port2adr(port);
while (count--)
*buf++ = *p;
}
void r7780rp_insl(unsigned long port, void *dst, unsigned long count)
{
u32 *buf = dst;
if (CHECK_AX88796L_PORT(port))
maybebadio(port);
else if (is_pci_ioaddr(port) || shifted_port(port)) {
volatile u32 *p = (volatile u32 *)pci_ioaddr(port);
while (count--)
*buf++ = *p;
} else
maybebadio(port);
}
void r7780rp_outsb(unsigned long port, const void *src, unsigned long count)
{
volatile u16 *p;
const u8 *buf = src;
if (CHECK_AX88796L_PORT(port)) {
p = (volatile u16 *)port88796l(port, 0);
while (count--)
*p = *buf++;
} else if (PXSEG(port))
while (count--)
ctrl_outb(*buf++, port);
else if (is_pci_ioaddr(port) || shifted_port(port)) {
volatile u8 *bp = (volatile u8 *)pci_ioaddr(port);
while (count--)
*bp = *buf++;
} else {
p = (volatile u16 *)port2adr(port);
while (count--)
*p = *buf++;
}
}
void r7780rp_outsw(unsigned long port, const void *src, unsigned long count)
{
volatile u16 *p;
const u16 *buf = src;
if (CHECK_AX88796L_PORT(port))
p = (volatile u16 *)port88796l(port, 1);
else if (PXSEG(port))
p = (volatile u16 *)port;
else if (is_pci_ioaddr(port) || shifted_port(port))
p = (volatile u16 *)pci_ioaddr(port);
else
p = (volatile u16 *)port2adr(port);
while (count--)
*p = *buf++;
}
void r7780rp_outsl(unsigned long port, const void *src, unsigned long count)
{
const u32 *buf = src;
if (CHECK_AX88796L_PORT(port))
maybebadio(port);
else if (is_pci_ioaddr(port) || shifted_port(port)) {
volatile u32 *p = (volatile u32 *)pci_ioaddr(port);
while (count--)
*p = *buf++;
} else
maybebadio(port);
}
void __iomem *r7780rp_ioport_map(unsigned long port, unsigned int size)
{
if (CHECK_AX88796L_PORT(port))
return (void __iomem *)port88796l(port, size > 1);
else if (PXSEG(port))
return (void __iomem *)port;
else if (is_pci_ioaddr(port) || shifted_port(port))
return (void __iomem *)pci_ioaddr(port);
return (void __iomem *)port2adr(port);
}
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