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ramips: use switch statement instead of multiple if-else-if in the rt288x pci code

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17972 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2009-10-07 11:37:03 +00:00
parent 184510d772
commit f00dfe552e
1 changed files with 22 additions and 12 deletions
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34
target/linux/ramips/files/arch/mips/pci/pci-rt288x.c
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@ -80,12 +80,17 @@ static int rt2880_pci_config_read(struct pci_bus *bus, unsigned int devfn,
config_access(PCI_ACCESS_READ, bus, devfn, where, &data);
spin_unlock_irqrestore(&rt2880_pci_lock, flags);
if (size == 1)
switch (size) {
case 1:
*val = (data >> ((where & 3) << 3)) & 0xff;
else if (size == 2)
break;
case 2:
*val = (data >> ((where & 3) << 3)) & 0xffff;
else
break;
case 4:
*val = data;
break;
}
return PCIBIOS_SUCCESSFUL;
}
@ -97,16 +102,21 @@ static int rt2880_pci_config_write(struct pci_bus *bus, unsigned int devfn,
u32 data = 0;
spin_lock_irqsave(&rt2880_pci_lock, flags);
if (size == 4) {
data = val;
} else {
switch (size) {
case 1:
config_access(PCI_ACCESS_READ, bus, devfn, where, &data);
if (size == 1)
data = (data & ~(0xff << ((where & 3) << 3))) |
(val << ((where & 3) << 3));
else if (size == 2)
data = (data & ~(0xffff << ((where & 3) << 3))) |
(val << ((where & 3) << 3));
data = (data & ~(0xff << ((where & 3) << 3))) |
(val << ((where & 3) << 3));
break;
case 2:
config_access(PCI_ACCESS_READ, bus, devfn, where, &data);
data = (data & ~(0xffff << ((where & 3) << 3))) |
(val << ((where & 3) << 3));
break;
case 4:
data = val;
break;
}
config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data);