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.
6 * I/O routine for Hitachi 7751 SolutionEngine.
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.
12 #include <linux/kernel.h>
13 #include <linux/types.h>
14 #include <linux/pci.h>
16 #include <asm/addrspace.h>
18 #ifdef CONFIG_SH_SECUREEDGE5410
19 unsigned short secureedge5410_ioport;
22 static inline volatile __u16 *port2adr(unsigned int port)
24 maybebadio((unsigned long)port);
25 return (volatile __u16*)port;
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
35 unsigned char snapgear_inb(unsigned long port)
38 return *(volatile unsigned char *)port;
39 else if (is_pci_ioaddr(port))
40 return *(volatile unsigned char *)pci_ioaddr(port);
42 return (*port2adr(port)) & 0xff;
45 unsigned char snapgear_inb_p(unsigned long port)
50 v = *(volatile unsigned char *)port;
51 else if (is_pci_ioaddr(port))
52 v = *(volatile unsigned char *)pci_ioaddr(port);
54 v = (*port2adr(port))&0xff;
59 unsigned short snapgear_inw(unsigned long 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);
72 unsigned int snapgear_inl(unsigned long 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);
85 void snapgear_outb(unsigned char value, unsigned long port)
89 *(volatile unsigned char *)port = value;
90 else if (is_pci_ioaddr(port))
91 *((unsigned char*)pci_ioaddr(port)) = value;
93 *(port2adr(port)) = value;
96 void snapgear_outb_p(unsigned char value, unsigned long port)
99 *(volatile unsigned char *)port = value;
100 else if (is_pci_ioaddr(port))
101 *((unsigned char*)pci_ioaddr(port)) = value;
103 *(port2adr(port)) = value;
107 void snapgear_outw(unsigned short value, unsigned long 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;
119 void snapgear_outl(unsigned int value, unsigned long port)
122 *(volatile unsigned long *)port = value;
123 else if (is_pci_ioaddr(port))
124 *((unsigned long*)pci_ioaddr(port)) = value;
129 void snapgear_insl(unsigned long port, void *addr, unsigned long count)
134 void snapgear_outsl(unsigned long port, const void *addr, unsigned long count)