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arch/x64:add up_set_irq_type
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add up_set_irq_type interface

Signed-off-by: liwenxiang1 <liwenxiang1@xiaomi.com>
This commit is contained in:
liwenxiang1
2025-01-15 16:17:42 +08:00
committed by Xiang Xiao
parent 9685403038
commit 681bfa6b54
2 changed files with 50 additions and 0 deletions
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arch/x86_64/include/intel64/irq.h
+1
View File
@@ -505,6 +505,7 @@ enum ioapic_trigger_mode
TRIGGER_FALLING_EDGE = (1 << 13),
TRIGGER_LEVEL_ACTIVE_HIGH = (1 << 15),
TRIGGER_LEVEL_ACTIVE_LOW = (1 << 15) | (1 << 13),
TRIGGER_MODE_MASK = (1 << 15) | (1 << 13),
};
/* This structure represents the return state from a system call */
arch/x86_64/src/intel64/intel64_irq.c
+49
View File
@@ -796,3 +796,52 @@ int up_connect_irq(const int *irq, int num, uintptr_t *mar, uint32_t *mdr)
return OK;
}
/****************************************************************************
* Name: up_set_irq_type
*
* Description:
* Config an IRQ trigger type.
*
****************************************************************************/
int up_set_irq_type(int irq, int mode)
{
enum ioapic_trigger_mode trigger_mode = 0;
uint32_t maxintr;
uint32_t data;
/* Setup the IO-APIC, remap the interrupt to 32~ */
maxintr = (up_ioapic_read(IOAPIC_REG_VER) >> 16) & 0xff;
if (irq < 0 || irq - IRQ0 > maxintr)
{
return -EINVAL;
}
if (mode == IRQ_RISING_EDGE)
{
trigger_mode = TRIGGER_RISING_EDGE;
}
else if (mode == IRQ_FALLING_EDGE)
{
trigger_mode = TRIGGER_FALLING_EDGE;
}
else if (mode == IRQ_HIGH_LEVEL)
{
trigger_mode = TRIGGER_LEVEL_ACTIVE_HIGH;
}
else if (mode == IRQ_LOW_LEVEL)
{
trigger_mode = TRIGGER_LEVEL_ACTIVE_LOW;
}
data = up_ioapic_read(IOAPIC_REG_TABLE + (irq - IRQ0) * 2);
data &= ~TRIGGER_MODE_MASK;
data |= trigger_mode;
up_ioapic_write(IOAPIC_REG_TABLE + (irq - IRQ0) * 2, data);
return 0;
}