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small cleanup: move variables declaration near where they're used.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35660 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini 2010-02-28 17:17:42 +00:00
parent 734d41fbf6
commit 5b15d1ec1e
1 changed files with 5 additions and 11 deletions
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16
src/system/kernel/arch/x86/arch_int.cpp
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@ -261,8 +261,6 @@ x86_get_idt(int32 cpu)
static bool
pic_is_spurious_interrupt(int32 num)
{
int32 isr;
if (num != 7)
return false;
@ -271,7 +269,7 @@ pic_is_spurious_interrupt(int32 num)
// just ignore them
out8(PIC_CONTROL3 | PIC_CONTROL3_READ_ISR, PIC_MASTER_CONTROL);
isr = in8(PIC_MASTER_CONTROL);
int32 isr = in8(PIC_MASTER_CONTROL);
out8(PIC_CONTROL3 | PIC_CONTROL3_READ_IRR, PIC_MASTER_CONTROL);
return (isr & 0x80) == 0;
@ -439,9 +437,8 @@ ioapic_write_32(uint8 registerSelect, uint32 value)
static inline uint64
ioapic_read_64(uint8 registerSelect)
{
uint64 result;
sIOAPIC->io_register_select = registerSelect + 1;
result = sIOAPIC->io_window_register;
uint64 result = sIOAPIC->io_window_register;
result <<= 32;
sIOAPIC->io_register_select = registerSelect;
result |= sIOAPIC->io_window_register;
@ -477,14 +474,13 @@ ioapic_end_of_interrupt(int32 num)
static void
ioapic_enable_io_interrupt(int32 num)
{
uint64 entry;
int32 pin = sIRQToIOAPICPin[num];
if (pin < 0 || pin > (int32)sIOAPICMaxRedirectionEntry)
return;
TRACE(("ioapic_enable_io_interrupt: IRQ %ld -> pin %ld\n", num, pin));
entry = ioapic_read_64(IO_APIC_REDIRECTION_TABLE + pin * 2);
uint64 entry = ioapic_read_64(IO_APIC_REDIRECTION_TABLE + pin * 2);
entry &= ~(1 << IO_APIC_INTERRUPT_MASK_SHIFT);
entry |= IO_APIC_INTERRUPT_UNMASKED << IO_APIC_INTERRUPT_MASK_SHIFT;
ioapic_write_64(IO_APIC_REDIRECTION_TABLE + pin * 2, entry);
@ -494,14 +490,13 @@ ioapic_enable_io_interrupt(int32 num)
static void
ioapic_disable_io_interrupt(int32 num)
{
uint64 entry;
int32 pin = sIRQToIOAPICPin[num];
if (pin < 0 || pin > (int32)sIOAPICMaxRedirectionEntry)
return;
TRACE(("ioapic_disable_io_interrupt: IRQ %ld -> pin %ld\n", num, pin));
entry = ioapic_read_64(IO_APIC_REDIRECTION_TABLE + pin * 2);
uint64 entry = ioapic_read_64(IO_APIC_REDIRECTION_TABLE + pin * 2);
entry &= ~(1 << IO_APIC_INTERRUPT_MASK_SHIFT);
entry |= IO_APIC_INTERRUPT_MASKED << IO_APIC_INTERRUPT_MASK_SHIFT;
ioapic_write_64(IO_APIC_REDIRECTION_TABLE + pin * 2, entry);
@ -511,7 +506,6 @@ ioapic_disable_io_interrupt(int32 num)
static void
ioapic_configure_io_interrupt(int32 num, uint32 config)
{
uint64 entry;
int32 pin = sIRQToIOAPICPin[num];
if (pin < 0 || pin > (int32)sIOAPICMaxRedirectionEntry)
return;
@ -519,7 +513,7 @@ ioapic_configure_io_interrupt(int32 num, uint32 config)
TRACE(("ioapic_configure_io_interrupt: IRQ %ld -> pin %ld; config 0x%08lx\n",
num, pin, config));
entry = ioapic_read_64(IO_APIC_REDIRECTION_TABLE + pin * 2);
uint64 entry = ioapic_read_64(IO_APIC_REDIRECTION_TABLE + pin * 2);
entry &= ~((1 << IO_APIC_TRIGGER_MODE_SHIFT)
| (1 << IO_APIC_PIN_POLARITY_SHIFT)
| (IO_APIC_INTERRUPT_VECTOR_MASK << IO_APIC_INTERRUPT_VECTOR_SHIFT));