diff options
Diffstat (limited to 'arch/sh/boards/overdrive/io.c')
-rw-r--r-- | arch/sh/boards/overdrive/io.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/arch/sh/boards/overdrive/io.c b/arch/sh/boards/overdrive/io.c deleted file mode 100644 index 4671b6b047b..00000000000 --- a/arch/sh/boards/overdrive/io.c +++ /dev/null | |||
@@ -1,172 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) | ||
3 | * | ||
4 | * May be copied or modified under the terms of the GNU General Public | ||
5 | * License. See linux/COPYING for more information. | ||
6 | * | ||
7 | * This file contains the I/O routines for use on the overdrive board | ||
8 | * | ||
9 | */ | ||
10 | |||
11 | #include <linux/types.h> | ||
12 | #include <linux/delay.h> | ||
13 | #include <asm/processor.h> | ||
14 | #include <asm/io.h> | ||
15 | #include <asm/addrspace.h> | ||
16 | |||
17 | #include <asm/overdrive/overdrive.h> | ||
18 | |||
19 | /* | ||
20 | * readX/writeX() are used to access memory mapped devices. On some | ||
21 | * architectures the memory mapped IO stuff needs to be accessed | ||
22 | * differently. On the SuperH architecture, we just read/write the | ||
23 | * memory location directly. | ||
24 | */ | ||
25 | |||
26 | #define dprintk(x...) | ||
27 | |||
28 | /* Translates an IO address to where it is mapped in memory */ | ||
29 | |||
30 | #define io_addr(x) (((unsigned)(x))|PCI_GTIO_BASE) | ||
31 | |||
32 | unsigned char od_inb(unsigned long port) | ||
33 | { | ||
34 | dprintk("od_inb(%x)\n", port); | ||
35 | return readb(io_addr(port)) & 0xff; | ||
36 | } | ||
37 | |||
38 | |||
39 | unsigned short od_inw(unsigned long port) | ||
40 | { | ||
41 | dprintk("od_inw(%x)\n", port); | ||
42 | return readw(io_addr(port)) & 0xffff; | ||
43 | } | ||
44 | |||
45 | unsigned int od_inl(unsigned long port) | ||
46 | { | ||
47 | dprintk("od_inl(%x)\n", port); | ||
48 | return readl(io_addr(port)); | ||
49 | } | ||
50 | |||
51 | void od_outb(unsigned char value, unsigned long port) | ||
52 | { | ||
53 | dprintk("od_outb(%x, %x)\n", value, port); | ||
54 | writeb(value, io_addr(port)); | ||
55 | } | ||
56 | |||
57 | void od_outw(unsigned short value, unsigned long port) | ||
58 | { | ||
59 | dprintk("od_outw(%x, %x)\n", value, port); | ||
60 | writew(value, io_addr(port)); | ||
61 | } | ||
62 | |||
63 | void od_outl(unsigned int value, unsigned long port) | ||
64 | { | ||
65 | dprintk("od_outl(%x, %x)\n", value, port); | ||
66 | writel(value, io_addr(port)); | ||
67 | } | ||
68 | |||
69 | /* This is horrible at the moment - needs more work to do something sensible */ | ||
70 | #define IO_DELAY() udelay(10) | ||
71 | |||
72 | #define OUT_DELAY(x,type) \ | ||
73 | void od_out##x##_p(unsigned type value,unsigned long port){out##x(value,port);IO_DELAY();} | ||
74 | |||
75 | #define IN_DELAY(x,type) \ | ||
76 | unsigned type od_in##x##_p(unsigned long port) {unsigned type tmp=in##x(port);IO_DELAY();return tmp;} | ||
77 | |||
78 | |||
79 | OUT_DELAY(b,char) | ||
80 | OUT_DELAY(w,short) | ||
81 | OUT_DELAY(l,int) | ||
82 | |||
83 | IN_DELAY(b,char) | ||
84 | IN_DELAY(w,short) | ||
85 | IN_DELAY(l,int) | ||
86 | |||
87 | |||
88 | /* Now for the string version of these functions */ | ||
89 | void od_outsb(unsigned long port, const void *addr, unsigned long count) | ||
90 | { | ||
91 | int i; | ||
92 | unsigned char *p = (unsigned char *) addr; | ||
93 | |||
94 | for (i = 0; i < count; i++, p++) { | ||
95 | outb(*p, port); | ||
96 | } | ||
97 | } | ||
98 | |||
99 | |||
100 | void od_insb(unsigned long port, void *addr, unsigned long count) | ||
101 | { | ||
102 | int i; | ||
103 | unsigned char *p = (unsigned char *) addr; | ||
104 | |||
105 | for (i = 0; i < count; i++, p++) { | ||
106 | *p = inb(port); | ||
107 | } | ||
108 | } | ||
109 | |||
110 | /* For the 16 and 32 bit string functions, we have to worry about alignment. | ||
111 | * The SH does not do unaligned accesses, so we have to read as bytes and | ||
112 | * then write as a word or dword. | ||
113 | * This can be optimised a lot more, especially in the case where the data | ||
114 | * is aligned | ||
115 | */ | ||
116 | |||
117 | void od_outsw(unsigned long port, const void *addr, unsigned long count) | ||
118 | { | ||
119 | int i; | ||
120 | unsigned short tmp; | ||
121 | unsigned char *p = (unsigned char *) addr; | ||
122 | |||
123 | for (i = 0; i < count; i++, p += 2) { | ||
124 | tmp = (*p) | ((*(p + 1)) << 8); | ||
125 | outw(tmp, port); | ||
126 | } | ||
127 | } | ||
128 | |||
129 | |||
130 | void od_insw(unsigned long port, void *addr, unsigned long count) | ||
131 | { | ||
132 | int i; | ||
133 | unsigned short tmp; | ||
134 | unsigned char *p = (unsigned char *) addr; | ||
135 | |||
136 | for (i = 0; i < count; i++, p += 2) { | ||
137 | tmp = inw(port); | ||
138 | p[0] = tmp & 0xff; | ||
139 | p[1] = (tmp >> 8) & 0xff; | ||
140 | } | ||
141 | } | ||
142 | |||
143 | |||
144 | void od_outsl(unsigned long port, const void *addr, unsigned long count) | ||
145 | { | ||
146 | int i; | ||
147 | unsigned tmp; | ||
148 | unsigned char *p = (unsigned char *) addr; | ||
149 | |||
150 | for (i = 0; i < count; i++, p += 4) { | ||
151 | tmp = (*p) | ((*(p + 1)) << 8) | ((*(p + 2)) << 16) | | ||
152 | ((*(p + 3)) << 24); | ||
153 | outl(tmp, port); | ||
154 | } | ||
155 | } | ||
156 | |||
157 | |||
158 | void od_insl(unsigned long port, void *addr, unsigned long count) | ||
159 | { | ||
160 | int i; | ||
161 | unsigned tmp; | ||
162 | unsigned char *p = (unsigned char *) addr; | ||
163 | |||
164 | for (i = 0; i < count; i++, p += 4) { | ||
165 | tmp = inl(port); | ||
166 | p[0] = tmp & 0xff; | ||
167 | p[1] = (tmp >> 8) & 0xff; | ||
168 | p[2] = (tmp >> 16) & 0xff; | ||
169 | p[3] = (tmp >> 24) & 0xff; | ||
170 | |||
171 | } | ||
172 | } | ||