This source file includes following definitions.
- gapspci_config_access
- gapspci_read
- gapspci_write
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9 #include <linux/sched.h>
10 #include <linux/kernel.h>
11 #include <linux/param.h>
12 #include <linux/interrupt.h>
13 #include <linux/init.h>
14 #include <linux/irq.h>
15 #include <linux/pci.h>
16 #include <linux/module.h>
17 #include <linux/io.h>
18 #include <mach/pci.h>
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36 static int gapspci_config_access(unsigned char bus, unsigned int devfn)
37 {
38 return (bus == 0) && (devfn == 0);
39 }
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46 static int gapspci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val)
47 {
48 *val = 0xffffffff;
49
50 if (!gapspci_config_access(bus->number, devfn))
51 return PCIBIOS_DEVICE_NOT_FOUND;
52
53 switch (size) {
54 case 1: *val = inb(GAPSPCI_BBA_CONFIG+where); break;
55 case 2: *val = inw(GAPSPCI_BBA_CONFIG+where); break;
56 case 4: *val = inl(GAPSPCI_BBA_CONFIG+where); break;
57 }
58
59 return PCIBIOS_SUCCESSFUL;
60 }
61
62 static int gapspci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
63 {
64 if (!gapspci_config_access(bus->number, devfn))
65 return PCIBIOS_DEVICE_NOT_FOUND;
66
67 switch (size) {
68 case 1: outb(( u8)val, GAPSPCI_BBA_CONFIG+where); break;
69 case 2: outw((u16)val, GAPSPCI_BBA_CONFIG+where); break;
70 case 4: outl((u32)val, GAPSPCI_BBA_CONFIG+where); break;
71 }
72
73 return PCIBIOS_SUCCESSFUL;
74 }
75
76 struct pci_ops gapspci_pci_ops = {
77 .read = gapspci_read,
78 .write = gapspci_write,
79 };