leord_diskid.c
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/*
* F i l e N a m e : l e o r d _ d i s k i d . c
*
****************************************************************************
* (C) Copyright ALPS Electric Co., Ltd. 1995-1996
****************************************************************************
* Version
*
* ver Date
* ---- --------
* 1.00 '96-08-26 Initial revision .
****************************************************************************
*/
#include <ultra64.h>
#include "leodefine.h"
#include "leodrive.h"
#include "leomacro.h"
#include "leoappli.h"
/**************************************/
/* PROTOTYPE DEFINITIONS */
/**************************************/
void leoReadDiskId(void);
/**************************************/
/* EXTERNALY DEFINED FUNCTIONS */
/**************************************/
extern void leoRead_common(unsigned int);
extern void leoClrUA_MEDIUM_CHANGED(void);
extern void leoSetUA_MEDIUM_CHANGED(void);
/**************************************/
/* RAM LOCATIONS */
/**************************************/
/**************************************/
/* EXTERNALY DEFINED RAM LOCATIONS */
/**************************************/
extern OSMesg LEOcur_command;
extern u16 LEOrw_flags;
extern u8 LEO_TempBuffer[((SEC_SIZE_ZONE0 + 16)/16)*16];
/*************************************/
/* MACRO DEFINITIONS */
/*************************************/
#define readid_cmd ((LEOCmdReadDiskId *)LEOcur_command)
/**********************************************************
* Function : leoRead
* ---------------------------------------------------------
* Description : read
* IN : non
* OUT : non
**********************************************************/
const static LEOCmdRead read_id_cmd =
{ { LEO_COMMAND_READ, /* COMMAND */
0x00, /* RESERVE */
0x00, /* CONTROL */
0x00, /* RESERVE */
0x00, /* STATUS */
0x00, /* SENSE */
0x00, /* RESERVE */
0x00, /* RESERVE */
NULL /* POST QUEUE */
},
DISK_ID_LBA1, /* LBA */
0x01, /* BLOCKS */
(u64*)LEO_TempBuffer, /* BUFFER POINTER */
0x00 /* READ BYTES */
};
const static u8 leo_disk_id_lba[2] = {DISK_ID_LBA1,DISK_ID_LBA2};
void leoReadDiskId(void)
{
LEOCmdRead dummy_cmd;
u8 *temp_pointer;
u32 cntr;
/* back up current command */
temp_pointer = (u8*)LEOcur_command;
/* read ID data */
LEOcur_command = (OSMesg)&dummy_cmd;
cntr = 0;
do
{
LEOrw_flags = SECTOR_READ;
dummy_cmd = read_id_cmd;
dummy_cmd.lba = leo_disk_id_lba[cntr];
#ifdef _ERRCHK
dummy_cmd.header.reserve1 = ((LEOCmdReadDiskId *)temp_pointer)->header.reserve1;
dummy_cmd.header.reserve3 = ((LEOCmdReadDiskId *)temp_pointer)->header.reserve3;
#endif
leoRead_common(0);
if (dummy_cmd.header.sense != LEO_SENSE_UNRECOVERED_READ_ERROR)
break;
} while (++cntr < 2);
#ifdef _ERRCHK
((LEOCmdReadDiskId *)temp_pointer)->header.reserve7 = dummy_cmd.header.reserve7;
#endif
/* restore current command */
LEOcur_command = (OSMesg)temp_pointer;
/* copy 32bytes ID data to buffer */
temp_pointer = (u8*)readid_cmd->buffer_pointer;
for (cntr = 0; cntr < 32; cntr += sizeof(int))
{
*(int*)temp_pointer = *((int*)&LEO_TempBuffer[cntr]);
temp_pointer += sizeof(int);
}
/* end of command */
readid_cmd->header.sense = dummy_cmd.header.sense;
readid_cmd->header.status = dummy_cmd.header.status;
/* GOOD なら、"ID を読んでない"フラグをねかす */
if(readid_cmd->header.status == LEO_STATUS_GOOD)
leoClrUA_MEDIUM_CHANGED();
else
leoSetUA_MEDIUM_CHANGED();
}