1 /*
2 * I/O routines for Titan
3 */
4 #include <linux/pci.h>
5 #include <asm/machvec.h>
6 #include <asm/addrspace.h>
7 #include <mach/titan.h>
8 #include <asm/io.h>
9
port2adr(unsigned int port)10 static inline unsigned int port2adr(unsigned int port)
11 {
12 maybebadio((unsigned long)port);
13 return port;
14 }
15
titan_inb(unsigned long port)16 u8 titan_inb(unsigned long port)
17 {
18 if (PXSEG(port))
19 return ctrl_inb(port);
20 else if (is_pci_ioaddr(port))
21 return ctrl_inb(pci_ioaddr(port));
22 return ctrl_inw(port2adr(port)) & 0xff;
23 }
24
titan_inb_p(unsigned long port)25 u8 titan_inb_p(unsigned long port)
26 {
27 u8 v;
28
29 if (PXSEG(port))
30 v = ctrl_inb(port);
31 else if (is_pci_ioaddr(port))
32 v = ctrl_inb(pci_ioaddr(port));
33 else
34 v = ctrl_inw(port2adr(port)) & 0xff;
35 ctrl_delay();
36 return v;
37 }
38
titan_inw(unsigned long port)39 u16 titan_inw(unsigned long port)
40 {
41 if (PXSEG(port))
42 return ctrl_inw(port);
43 else if (is_pci_ioaddr(port))
44 return ctrl_inw(pci_ioaddr(port));
45 else if (port >= 0x2000)
46 return ctrl_inw(port2adr(port));
47 else
48 maybebadio(port);
49 return 0;
50 }
51
titan_inl(unsigned long port)52 u32 titan_inl(unsigned long port)
53 {
54 if (PXSEG(port))
55 return ctrl_inl(port);
56 else if (is_pci_ioaddr(port))
57 return ctrl_inl(pci_ioaddr(port));
58 else if (port >= 0x2000)
59 return ctrl_inw(port2adr(port));
60 else
61 maybebadio(port);
62 return 0;
63 }
64
titan_outb(u8 value,unsigned long port)65 void titan_outb(u8 value, unsigned long port)
66 {
67 if (PXSEG(port))
68 ctrl_outb(value, port);
69 else if (is_pci_ioaddr(port))
70 ctrl_outb(value, pci_ioaddr(port));
71 else
72 ctrl_outw(value, port2adr(port));
73 }
74
titan_outb_p(u8 value,unsigned long port)75 void titan_outb_p(u8 value, unsigned long port)
76 {
77 if (PXSEG(port))
78 ctrl_outb(value, port);
79 else if (is_pci_ioaddr(port))
80 ctrl_outb(value, pci_ioaddr(port));
81 else
82 ctrl_outw(value, port2adr(port));
83 ctrl_delay();
84 }
85
titan_outw(u16 value,unsigned long port)86 void titan_outw(u16 value, unsigned long port)
87 {
88 if (PXSEG(port))
89 ctrl_outw(value, port);
90 else if (is_pci_ioaddr(port))
91 ctrl_outw(value, pci_ioaddr(port));
92 else if (port >= 0x2000)
93 ctrl_outw(value, port2adr(port));
94 else
95 maybebadio(port);
96 }
97
titan_outl(u32 value,unsigned long port)98 void titan_outl(u32 value, unsigned long port)
99 {
100 if (PXSEG(port))
101 ctrl_outl(value, port);
102 else if (is_pci_ioaddr(port))
103 ctrl_outl(value, pci_ioaddr(port));
104 else
105 maybebadio(port);
106 }
107
titan_insl(unsigned long port,void * dst,unsigned long count)108 void titan_insl(unsigned long port, void *dst, unsigned long count)
109 {
110 maybebadio(port);
111 }
112
titan_outsl(unsigned long port,const void * src,unsigned long count)113 void titan_outsl(unsigned long port, const void *src, unsigned long count)
114 {
115 maybebadio(port);
116 }
117
titan_ioport_map(unsigned long port,unsigned int size)118 void __iomem *titan_ioport_map(unsigned long port, unsigned int size)
119 {
120 if (PXSEG(port) || is_pci_memaddr(port))
121 return (void __iomem *)port;
122 else if (is_pci_ioaddr(port))
123 return (void __iomem *)pci_ioaddr(port);
124
125 return (void __iomem *)port2adr(port);
126 }
127