ide.c File Reference

#include <stddef.h>
#include <string.h>
#include <sys/timer.h>
#include <sys/thread.h>
#include <sys/event.h>
#include <sys/atom.h>
#include <sys/heap.h>
#include <dev/irqreg.h>
#include <dev/ide.h>
#include <dev/idep.h>
#include <fs/typedefs.h>

Include dependency graph for ide.c:

Data Structures
struct	_drive
Defines
#define	__IDE_C__
#define	HIBYTE(_x)   (BYTE)((_x >> 8) & 0x00FF)
#define	LOBYTE(_x)   (BYTE)(_x & 0x00FF)
#define	IDE_IRQ   INT7
#define	IDE_INT_RISING_EDGE   0xC0
#define	CF_IRQ   INT6
#define	CF_INT_SENS_MASK   0x30
#define	CF_INT_FALLING_EDGE   0x20
#define	CF_INT_RISING_EDGE   0x30
#define	IDE_MAX_SUPPORTED_DEVICE   1
#define	CF_AVAILABLE   0
#define	CF_NOT_AVAILABLE   1
#define	INITTIMEOUT   10000
#define	DISKTIMEOUT   10000
#define	CONTROLLERTIMEOUT   200
#define	ATAPITIMEOUT   5000
#define	IDEIn(x)   pIDE[x]
#define	IDEOut(x, y)   pIDE[x] = y
#define	IDE_SUPPORT_LBA   0x0001
#define	IDE_SUPPORT_LBA48   0x0002
#define	IDE_SUPPORT_PACKET   0x0004
#define	IDE_SUPPORT_INTRQ_PACKET   0x0008
#define	IDE_CDROM_DEVICE   0x1000
#define	IDE_ZIP_DEVICE   0x2000
#define	IDE_READ_ONLY   0x4000
#define	IDE_READY   0x8000
#define	ATAPI_CFG_12_BYTE_MSK   0x0003
#define	ATAPI_CFG_INTRQ   0x0060
#define	ATAPI_CFG_REM_MEDIUM   0x0080
#define	ATAPI_CFG_DEVICE   0x1F00
#define	ATAPI_CFG_ATAPI   0xC000
#define	ATAPI_IS_12_BYTE   0x0000
#define	ATAPI_USE_INTRQ   0x0020
#define	ATAPI_IS_DIRECT_ACCESS   0x0000
#define	ATAPI_IS_CDROM   0x0500
#define	ATAPI_IS_PACKET   0x8000
#define	ATAPI_CMD(_x)
#define	CLEAR_ATAPI_CMD()   memset(aATAPICmd, 0x00, sizeof(aATAPICmd));
Typedefs
typedef struct _drive	DRIVE
typedef struct _drive *	LPDRIVE
Functions
void	IDELock (void)
void	IDEFree (void)
void	IDESemaInit (void)
void	CFChange (void *arg)
int	IDEInit (int nBaseAddress, int nIDEMode, IDE_MOUNT_FUNC *pMountFunc, IDE_MOUNT_FUNC *pUnMountFunc)
int	IDEMountDevice (BYTE bDevice, BYTE *pSectorBuffer)
int	IDEGetSectorSize (BYTE bDevice)
int	IDEIsCDROMDevice (BYTE bDevice)
int	IDEIsZIPDevice (BYTE bDevice)
int	IDEUnMountDevice (BYTE bDevice)
DWORD	IDEGetTotalSectors (BYTE bDevice)
int	IDEReadSectors (BYTE bDevice, void *pData, DWORD dwStartSector, WORD wSectorCount)
int	IDEATAPISetCDSpeed (BYTE bDevice, WORD wSpeed)

---

Define Documentation

#define __IDE_C__

#define HIBYTE

(

_x

)

(BYTE)((_x >> 8) & 0x00FF)

#define LOBYTE

(

_x

)

(BYTE)(_x & 0x00FF)

#define IDE_IRQ   INT7

Referenced by IDEInit().

#define IDE_INT_RISING_EDGE   0xC0

Referenced by IDEInit().

#define CF_IRQ   INT6

Referenced by CFChange(), and IDEInit().

#define CF_INT_SENS_MASK   0x30

Referenced by CFChange(), and IDEInit().

#define CF_INT_FALLING_EDGE   0x20

Referenced by CFChange(), and IDEInit().

#define CF_INT_RISING_EDGE   0x30

Referenced by CFChange(), and IDEInit().

#define IDE_MAX_SUPPORTED_DEVICE   1

Referenced by IDEATAPISetCDSpeed(), IDEGetSectorSize(), IDEGetTotalSectors(), IDEInit(), IDEIsCDROMDevice(), IDEIsZIPDevice(), IDEMountDevice(), IDEReadSectors(), and IDEUnMountDevice().

#define CF_AVAILABLE   0

Referenced by CFChange(), and IDEInit().

#define CF_NOT_AVAILABLE   1

Referenced by CFChange(), and IDEInit().

#define INITTIMEOUT   10000

#define DISKTIMEOUT   10000

#define CONTROLLERTIMEOUT   200

#define ATAPITIMEOUT   5000

#define IDEIn

(

x

)

pIDE[x]

#define IDEOut	(		x,
			y
	)		pIDE[x] = y

#define IDE_SUPPORT_LBA   0x0001

#define IDE_SUPPORT_LBA48   0x0002

#define IDE_SUPPORT_PACKET   0x0004

Referenced by IDEATAPISetCDSpeed(), IDEMountDevice(), and IDEReadSectors().

#define IDE_SUPPORT_INTRQ_PACKET   0x0008

#define IDE_CDROM_DEVICE   0x1000

Referenced by IDEIsCDROMDevice().

#define IDE_ZIP_DEVICE   0x2000

Referenced by IDEIsZIPDevice().

#define IDE_READ_ONLY   0x4000

#define IDE_READY   0x8000

Referenced by IDEATAPISetCDSpeed(), IDEIsCDROMDevice(), IDEIsZIPDevice(), IDEMountDevice(), and IDEReadSectors().

#define ATAPI_CFG_12_BYTE_MSK   0x0003

#define ATAPI_CFG_INTRQ   0x0060

#define ATAPI_CFG_REM_MEDIUM   0x0080

#define ATAPI_CFG_DEVICE   0x1F00

#define ATAPI_CFG_ATAPI   0xC000

#define ATAPI_IS_12_BYTE   0x0000

#define ATAPI_USE_INTRQ   0x0020

#define ATAPI_IS_DIRECT_ACCESS   0x0000

#define ATAPI_IS_CDROM   0x0500

#define ATAPI_IS_PACKET   0x8000

#define ATAPI_CMD

(

_x

)

Value:

{                       \
  memset(aATAPICmd, 0x00, sizeof(aATAPICmd)); \
  aATAPICmd[0] = _x;                          \
}

Referenced by IDEATAPISetCDSpeed(), and IDEReadSectors().

#define CLEAR_ATAPI_CMD

(

)

memset(aATAPICmd, 0x00, sizeof(aATAPICmd));

---

Typedef Documentation

typedef struct _drive DRIVE

typedef struct _drive * LPDRIVE

---

Function Documentation

void IDELock

(

void

)

References NutEventWait().

Referenced by IDEGetSectorSize(), IDEGetTotalSectors(), IDEIsCDROMDevice(), IDEIsZIPDevice(), IDEMountDevice(), IDEReadSectors(), and IDEUnMountDevice().

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void IDEFree

(

void

)

References NutEventPost().

Referenced by IDEGetSectorSize(), IDEGetTotalSectors(), IDEIsCDROMDevice(), IDEIsZIPDevice(), IDEMountDevice(), IDEReadSectors(), and IDEUnMountDevice().

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void IDESemaInit

(

void

)

References NutEventPost().

Referenced by IDEInit().

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void CFChange

(

void *

arg

)

References BV, CF_AVAILABLE, CF_INT_FALLING_EDGE, CF_INT_RISING_EDGE, CF_INT_SENS_MASK, CF_IRQ, CF_NOT_AVAILABLE, EICR, IDE_DRIVE_C, IDEMountDevice(), IDEUnMountDevice(), NULL, NutEnterCritical, NutEventWaitNext(), NutExitCritical, NutHeapAlloc, NutHeapFree, and NutSleep().

Referenced by IDEInit().

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int IDEInit	(	int	nBaseAddress,
		int	nIDEMode,
		IDE_MOUNT_FUNC *	pMountFunc,
		IDE_MOUNT_FUNC *	pUnMountFunc
	)

References _BV, _drive::bDevice, _drive::bIDEMode, BV, CF_AVAILABLE, CF_INT_FALLING_EDGE, CF_INT_RISING_EDGE, CF_INT_SENS_MASK, CF_IRQ, CF_NOT_AVAILABLE, CFChange(), EICR, FALSE, IDE_BASE_ADDRESS, IDE_COMPACT_FLASH, IDE_HARDDISK, IDE_HARDDISK_7MHZ, IDE_INT_RISING_EDGE, IDE_IRQ, IDE_MAX_SUPPORTED_DEVICE, IDE_OK, IDESemaInit(), MEM_8BIT_COMPACT_FLASH, memset(), NULL, NutEnterCritical, NutExitCritical, NutRegisterIrqHandler(), NutThreadCreate(), sbi, sig_INTERRUPT6, and sig_INTERRUPT7.

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int IDEMountDevice	(	BYTE	bDevice,
		BYTE *	pSectorBuffer
	)

References ATAPI_SECTOR_SIZE, _drive::dwTotalSectors, IDE_ERROR, IDE_MAX_SUPPORTED_DEVICE, IDE_OK, IDE_READY, IDE_SECTOR_SIZE, IDE_SUPPORT_PACKET, IDEFree(), IDELock(), NULL, _drive::wFlags, and _drive::wSectorSize.

Referenced by CFChange().

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int IDEGetSectorSize

(

BYTE

bDevice

)

References IDE_MAX_SUPPORTED_DEVICE, IDEFree(), IDELock(), and _drive::wSectorSize.

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int IDEIsCDROMDevice

(

BYTE

bDevice

)

References FALSE, IDE_CDROM_DEVICE, IDE_MAX_SUPPORTED_DEVICE, IDE_READY, IDEFree(), IDELock(), TRUE, and _drive::wFlags.

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int IDEIsZIPDevice

(

BYTE

bDevice

)

References FALSE, IDE_MAX_SUPPORTED_DEVICE, IDE_READY, IDE_ZIP_DEVICE, IDEFree(), IDELock(), TRUE, and _drive::wFlags.

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int IDEUnMountDevice

(

BYTE

bDevice

)

References IDE_ERROR, IDE_MAX_SUPPORTED_DEVICE, IDEFree(), IDELock(), NULL, and _drive::wFlags.

Referenced by CFChange().

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DWORD IDEGetTotalSectors

(

BYTE

bDevice

)

References _drive::dwTotalSectors, IDE_MAX_SUPPORTED_DEVICE, IDEFree(), and IDELock().

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int IDEReadSectors	(	BYTE	bDevice,
		void *	pData,
		DWORD	dwStartSector,
		WORD	wSectorCount
	)

References ATAPI_CMD, ATAPI_CMD_READ12, _drive::dwTotalSectors, IDE_DRIVE_NOT_FOUND, IDE_ERROR, IDE_MAX_SUPPORTED_DEVICE, IDE_OK, IDE_PARAM_ERROR, IDE_READY, IDE_SUPPORT_PACKET, IDEFree(), IDELock(), _drive::wFlags, and _drive::wSectorSize.

Referenced by FATFileRead().

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int IDEATAPISetCDSpeed	(	BYTE	bDevice,
		WORD	wSpeed
	)

References ATAPI_CMD, IDE_DRIVE_NOT_FOUND, IDE_MAX_SUPPORTED_DEVICE, IDE_NOT_SUPPORTED, IDE_OK, IDE_READY, IDE_SUPPORT_PACKET, NULL, and _drive::wFlags.