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Commit | Line | Data |
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959f85f8 | 1 | /* |
1da177e4 LT |
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 | */ | |
1da177e4 LT |
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 | ||
1da177e4 LT |
18 | #ifdef CONFIG_SH_SECUREEDGE5410 |
19 | unsigned short secureedge5410_ioport; | |
20 | #endif | |
21 | ||
1da177e4 LT |
22 | static inline volatile __u16 *port2adr(unsigned int port) |
23 | { | |
373e68b5 | 24 | maybebadio((unsigned long)port); |
1da177e4 LT |
25 | return (volatile __u16*)port; |
26 | } | |
27 | ||
1da177e4 LT |
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 | */ | |
1da177e4 LT |
35 | unsigned char snapgear_inb(unsigned long port) |
36 | { | |
37 | if (PXSEG(port)) | |
38 | return *(volatile unsigned char *)port; | |
1da177e4 | 39 | else |
959f85f8 | 40 | return (*port2adr(port)) & 0xff; |
1da177e4 LT |
41 | } |
42 | ||
1da177e4 LT |
43 | unsigned char snapgear_inb_p(unsigned long port) |
44 | { | |
45 | unsigned char v; | |
46 | ||
47 | if (PXSEG(port)) | |
48 | v = *(volatile unsigned char *)port; | |
1da177e4 | 49 | else |
959f85f8 PM |
50 | v = (*port2adr(port))&0xff; |
51 | ctrl_delay(); | |
1da177e4 LT |
52 | return v; |
53 | } | |
54 | ||
1da177e4 LT |
55 | unsigned short snapgear_inw(unsigned long port) |
56 | { | |
57 | if (PXSEG(port)) | |
58 | return *(volatile unsigned short *)port; | |
1da177e4 LT |
59 | else if (port >= 0x2000) |
60 | return *port2adr(port); | |
61 | else | |
373e68b5 | 62 | maybebadio(port); |
1da177e4 LT |
63 | return 0; |
64 | } | |
65 | ||
1da177e4 LT |
66 | unsigned int snapgear_inl(unsigned long port) |
67 | { | |
68 | if (PXSEG(port)) | |
69 | return *(volatile unsigned long *)port; | |
1da177e4 LT |
70 | else if (port >= 0x2000) |
71 | return *port2adr(port); | |
72 | else | |
373e68b5 | 73 | maybebadio(port); |
1da177e4 LT |
74 | return 0; |
75 | } | |
76 | ||
1da177e4 LT |
77 | void snapgear_outb(unsigned char value, unsigned long port) |
78 | { | |
79 | ||
80 | if (PXSEG(port)) | |
81 | *(volatile unsigned char *)port = value; | |
1da177e4 LT |
82 | else |
83 | *(port2adr(port)) = value; | |
84 | } | |
85 | ||
1da177e4 LT |
86 | void snapgear_outb_p(unsigned char value, unsigned long port) |
87 | { | |
88 | if (PXSEG(port)) | |
89 | *(volatile unsigned char *)port = value; | |
1da177e4 LT |
90 | else |
91 | *(port2adr(port)) = value; | |
959f85f8 | 92 | ctrl_delay(); |
1da177e4 LT |
93 | } |
94 | ||
1da177e4 LT |
95 | void snapgear_outw(unsigned short value, unsigned long port) |
96 | { | |
97 | if (PXSEG(port)) | |
98 | *(volatile unsigned short *)port = value; | |
1da177e4 LT |
99 | else if (port >= 0x2000) |
100 | *port2adr(port) = value; | |
101 | else | |
373e68b5 | 102 | maybebadio(port); |
1da177e4 LT |
103 | } |
104 | ||
1da177e4 LT |
105 | void snapgear_outl(unsigned int value, unsigned long port) |
106 | { | |
107 | if (PXSEG(port)) | |
108 | *(volatile unsigned long *)port = value; | |
1da177e4 | 109 | else |
373e68b5 | 110 | maybebadio(port); |
1da177e4 LT |
111 | } |
112 | ||
113 | void snapgear_insl(unsigned long port, void *addr, unsigned long count) | |
114 | { | |
373e68b5 | 115 | maybebadio(port); |
1da177e4 LT |
116 | } |
117 | ||
118 | void snapgear_outsl(unsigned long port, const void *addr, unsigned long count) | |
119 | { | |
373e68b5 | 120 | maybebadio(port); |
1da177e4 | 121 | } |