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28 lines
961 B
C
28 lines
961 B
C
#include "ia64_msi.h"
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/**
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* @brief 生成架构相关的msi的message address
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*
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*/
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#define ia64_pci_get_arch_msi_message_address(processor) ((0xfee00000UL | (processor << 12)))
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/**
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* @brief 生成架构相关的message data
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*
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*/
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#define ia64_pci_get_arch_msi_message_data(vector, processor, edge_trigger, assert) ((uint32_t)((vector & 0xff) | (edge_trigger == 1 ? 0 : (1 << 15)) | ((assert == 0) ? 0 : (1 << 14))))
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/**
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* @brief 生成msi消息
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*
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* @param msi_desc msi描述符
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* @return struct msi_msg_t* msi消息指针（在描述符内）
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*/
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struct msi_msg_t *msi_arch_get_msg(struct msi_desc_t *msi_desc)
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{
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msi_desc->msg.address_hi = 0;
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msi_desc->msg.address_lo = ia64_pci_get_arch_msi_message_address(msi_desc->processor);
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msi_desc->msg.data = ia64_pci_get_arch_msi_message_data(msi_desc->irq_num, msi_desc->processor, msi_desc->edge_trigger, msi_desc->assert);
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msi_desc->msg.vector_control = 0;
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return &(msi_desc->msg);
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} |