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24 lines
821 B
Rust
24 lines
821 B
Rust
use crate::driver::pci::pci_irq::TriggerMode;
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/// @brief 获得MSI Message Address
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/// @param processor 目标CPU ID号
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/// @return MSI Message Address
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pub fn ia64_pci_get_arch_msi_message_address(processor: u16) -> u32 {
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0xfee00000 as u32 | ((processor as u32) << 12)
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}
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/// @brief 获得MSI Message Data
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/// @param vector 分配的中断向量号
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/// @param processor 目标CPU ID号
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/// @param trigger 申请中断的触发模式，MSI默认为边沿触发
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/// @return MSI Message Address
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pub fn ia64_pci_get_arch_msi_message_data(
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vector: u16,
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processor: u16,
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trigger: TriggerMode,
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) -> u32 {
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match trigger {
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TriggerMode::EdgeTrigger => vector as u32,
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TriggerMode::AssertHigh => vector as u32 | 1 << 15 | 1 << 14,
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TriggerMode::AssertLow => vector as u32 | 1 << 15,
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}
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}
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