disk.c File Reference

#include <stdbool.h>
#include <stdint.h>
#include <sys/kassert.h>
#include <sys/kdebug.h>
#include <sys/queue.h>
#include <sys/sga.h>
#include <sys/disk.h>
#include <sys/spinlock.h>

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Functions
	LIST_HEAD (DiskList, Disk)
void	Disk_RemoveDisk (Disk *disk)
Disk *	Disk_GetByID (uint64_t ctrlNo, uint64_t diskNo)
int	Disk_Read (Disk *disk, void *buf, SGArray *sga, DiskCB cb, void *arg)
int	Disk_Write (Disk *disk, void *buf, SGArray *sga, DiskCB cb, void *arg)
int	Disk_Flush (Disk *disk, void *buf, SGArray *sga, DiskCB cb, void *arg)
static void	Debug_Disks (int argc, const char *argv[])
	REGISTER_DBGCMD (disks, "List disks", Debug_Disks)
static void	Debug_DumpDisk (int argc, const char *argv[])
	REGISTER_DBGCMD (dumpdisk, "Dump disk sector", Debug_DumpDisk)

Function Documentation

Debug_Disks()

static void Debug_Disks ( int  argc, const char *  argv[]  )

static

Definition at line 62 of file disk.c.

{
    Disk *d;
 
    LIST_FOREACH(d, &diskList, entries) {
        kprintf("disk%lld.%lld: %lld Sectors\n",
                d->ctrlNo, d->diskNo, d->sectorCount);
    }
}

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Debug_DumpDisk()

static void Debug_DumpDisk ( int  argc, const char *  argv[]  )

static

Definition at line 75 of file disk.c.

{
    uint64_t ctrlNo, diskNo;
    uint64_t sector;
    char buf[512];
    SGArray sga;
 
    if (argc != 4) {
        kprintf("dumpdisk requires 4 arguments!\n");
        return;
    }
 
    ctrlNo = Debug_StrToInt(argv[1]);
    diskNo = Debug_StrToInt(argv[2]);
    sector = Debug_StrToInt(argv[3]);
 
    Disk *d = Disk_GetByID(ctrlNo, diskNo);
 
    sga.len = 1;
    sga.entries[0].offset = sector;
    sga.entries[0].length = 512;
 
    kprintf("Reading Sector %lld from disk%lld.%lld\n", sector, ctrlNo, diskNo);
 
    Disk_Read(d, &buf, &sga, NULL, NULL);
    Debug_PrintHex((const char *)&buf, 512, 0, 512);
}

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Disk_Flush()

int Disk_Flush	(	Disk *	disk,
		void *	buf,
		SGArray *	sga,
		DiskCB	cb,
		void *	arg
	)

Definition at line 56 of file disk.c.

{
    return disk->flush(disk, buf, sga, cb, arg);
}

Disk_GetByID()

Disk * Disk_GetByID	(	uint64_t	ctrlNo,
		uint64_t	diskNo
	)

Definition at line 31 of file disk.c.

{
    Disk *d;
 
    LIST_FOREACH(d, &diskList, entries) {
        if (d->ctrlNo == ctrlNo && d->diskNo == diskNo)
            return d;
    }
 
    return NULL;
}

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Disk_Read()

int Disk_Read	(	Disk *	disk,
		void *	buf,
		SGArray *	sga,
		DiskCB	cb,
		void *	arg
	)

Definition at line 44 of file disk.c.

{
    return disk->read(disk, buf, sga, cb, arg);
}

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Disk_RemoveDisk()

void Disk_RemoveDisk

(

Disk *

disk

)

Definition at line 25 of file disk.c.

{
    LIST_REMOVE(disk, entries);
}

Disk_Write()

int Disk_Write	(	Disk *	disk,
		void *	buf,
		SGArray *	sga,
		DiskCB	cb,
		void *	arg
	)

Definition at line 50 of file disk.c.

{
    return disk->write(disk, buf, sga, cb, arg);
}

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LIST_HEAD()

LIST_HEAD	(	DiskList	,
		Disk
	)

Definition at line 16 of file disk.c.

{
    LIST_INSERT_HEAD(&diskList, disk, entries);
}

REGISTER_DBGCMD() [1/2]

REGISTER_DBGCMD	(	disks	,
		"List disks"	,
		Debug_Disks
	)

REGISTER_DBGCMD() [2/2]

REGISTER_DBGCMD	(	dumpdisk	,
		"Dump disk sector"	,
		Debug_DumpDisk
	)