1/*
2 * Copyright (C) 2002  David McCullough <davidm@snapgear.com>
3 * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
4 * Based largely on io_se.c.
5 *
6 * I/O routine for Hitachi 7751 SolutionEngine.
7 *
8 * Initial version only to support LAN access; some
9 * placeholder code from io_se.c left in with the
10 * expectation of later SuperIO and PCMCIA access.
11 */
12#include <linux/kernel.h>
13#include <linux/types.h>
14#include <linux/pci.h>
15#include <asm/io.h>
16#include <asm/addrspace.h>
17
18#ifdef CONFIG_SH_SECUREEDGE5410
19unsigned short secureedge5410_ioport;
20#endif
21
22static inline volatile __u16 *port2adr(unsigned int port)
23{
24	maybebadio((unsigned long)port);
25	return (volatile __u16*)port;
26}
27
28/*
29 * General outline: remap really low stuff [eventually] to SuperIO,
30 * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
31 * is mapped through the PCI IO window.  Stuff with high bits (PXSEG)
32 * should be way beyond the window, and is used  w/o translation for
33 * compatibility.
34 */
35unsigned char snapgear_inb(unsigned long port)
36{
37	if (PXSEG(port))
38		return *(volatile unsigned char *)port;
39	else if (is_pci_ioaddr(port))
40		return *(volatile unsigned char *)pci_ioaddr(port);
41	else
42		return (*port2adr(port)) & 0xff;
43}
44
45unsigned char snapgear_inb_p(unsigned long port)
46{
47	unsigned char v;
48
49	if (PXSEG(port))
50		v = *(volatile unsigned char *)port;
51	else if (is_pci_ioaddr(port))
52		v = *(volatile unsigned char *)pci_ioaddr(port);
53	else
54		v = (*port2adr(port))&0xff;
55	ctrl_delay();
56	return v;
57}
58
59unsigned short snapgear_inw(unsigned long port)
60{
61	if (PXSEG(port))
62		return *(volatile unsigned short *)port;
63	else if (is_pci_ioaddr(port))
64		return *(volatile unsigned short *)pci_ioaddr(port);
65	else if (port >= 0x2000)
66		return *port2adr(port);
67	else
68		maybebadio(port);
69	return 0;
70}
71
72unsigned int snapgear_inl(unsigned long port)
73{
74	if (PXSEG(port))
75		return *(volatile unsigned long *)port;
76	else if (is_pci_ioaddr(port))
77		return *(volatile unsigned int *)pci_ioaddr(port);
78	else if (port >= 0x2000)
79		return *port2adr(port);
80	else
81		maybebadio(port);
82	return 0;
83}
84
85void snapgear_outb(unsigned char value, unsigned long port)
86{
87
88	if (PXSEG(port))
89		*(volatile unsigned char *)port = value;
90	else if (is_pci_ioaddr(port))
91		*((unsigned char*)pci_ioaddr(port)) = value;
92	else
93		*(port2adr(port)) = value;
94}
95
96void snapgear_outb_p(unsigned char value, unsigned long port)
97{
98	if (PXSEG(port))
99		*(volatile unsigned char *)port = value;
100	else if (is_pci_ioaddr(port))
101		*((unsigned char*)pci_ioaddr(port)) = value;
102	else
103		*(port2adr(port)) = value;
104	ctrl_delay();
105}
106
107void snapgear_outw(unsigned short value, unsigned long port)
108{
109	if (PXSEG(port))
110		*(volatile unsigned short *)port = value;
111	else if (is_pci_ioaddr(port))
112		*((unsigned short *)pci_ioaddr(port)) = value;
113	else if (port >= 0x2000)
114		*port2adr(port) = value;
115	else
116		maybebadio(port);
117}
118
119void snapgear_outl(unsigned int value, unsigned long port)
120{
121	if (PXSEG(port))
122		*(volatile unsigned long *)port = value;
123	else if (is_pci_ioaddr(port))
124		*((unsigned long*)pci_ioaddr(port)) = value;
125	else
126		maybebadio(port);
127}
128
129void snapgear_insl(unsigned long port, void *addr, unsigned long count)
130{
131	maybebadio(port);
132}
133
134void snapgear_outsl(unsigned long port, const void *addr, unsigned long count)
135{
136	maybebadio(port);
137}
138