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42 lines
863 B
C
42 lines
863 B
C
#pragma once
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#include "../../common/glib.h"
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#include "stdint.h"
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#include <process/semaphore.h>
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#define BLK_TYPE_AHCI 0
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struct block_device_operation
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{
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long (*open)();
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long (*close)();
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long (*ioctl)(long cmd, long arg);
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long (*transfer)(long cmd, ul LBA_start, ul count, uint64_t buffer, uint8_t arg0, uint8_t arg1);
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};
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/**
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* @brief 块设备请求队列内的packet
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*
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*/
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struct block_device_request_packet
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{
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uchar cmd;
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uint64_t LBA_start;
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uint32_t count;
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uint64_t buffer_vaddr;
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uint8_t device_type; // 0: ahci
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void (*end_handler)(ul num, ul arg);
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wait_queue_node_t wait_queue;
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};
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/**
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* @brief 块设备的请求队列
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*
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*/
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struct block_device_request_queue
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{
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wait_queue_node_t wait_queue_list;
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struct block_device_request_packet * in_service; // 正在请求的结点
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ul request_count;
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}; |