iplleomecha.c
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/*
* F i l e N a m e : i p l l e o m e c h a . c
*
****************************************************************************
* (C) Copyright ALPS Electric Co., Ltd. 1995-1996
****************************************************************************
* Version:
*
* ver Date
* ---- --------
* 1.06 '97-06-23 Add check of return value of osRecvMesg in leoiplRecv_event_mesg().
* Inhibit retry for DIAG-error in leoiplChk_err_retry().
* 1.05 '96-10-30 Add leoiplWait_mecha_cmd_done(), leoiplRecv_event_mesg() .
* Move leoiplChk_err_retry() functoin from leoint.c .
* Change leoiplChk_err_retry() function.
* SC_DEVICE_COMMUNICATION_FAIL, SC_COMMAND_PHASE_ERROR is non retry.
* 1.04 '96-07-25 Delete iplleoClear_mecha_int() macro .
* 1.03 '96-02-27 Rename iplmecha.c to iplleomecha.c .
* Debug "if" to call clr_sys_read() in leoAnalize_asic_status().
* 1.02 '96-02-13 Clear EVENT_QUE before command write to drive.
* 1.01 '96-02-03 Debug chk_done_status(),analize_asic_status()
* 1.00 '95-12-20 Initial revision .
****************************************************************************
*/
#define _ASIC_IF
#include "os.h"
#include <ultra64.h>
#include "leodefine.h"
#include "leodrive.h"
#include "iplleomacro.h"
#include "leoappli.h"
/*************************************/
/* PROTOTYPE */
/*************************************/
u8 leoiplAnalize_asic_status(u32 cur_status);
u8 leoiplChk_asic_ready(u32 asic_cmd);
u8 leoiplChk_done_status(u32 asic_cmd);
u8 leoiplSend_asic_cmd_i(u32 asic_cmd, u32 asic_data);
u8 leoiplWait_mecha_cmd_done(u32 asic_cmd );
u8 leoiplSend_asic_cmd_w(u32 asic_cmd, u32 asic_data);
u8 leoiplSeek_read_i(void);
u8 leoiplDetect_index_w(void);
u32 leoiplChk_err_retry(u32 sense);
u8 leoiplRecv_event_mesg(s32 control);
void leoiplDrive_reset(void);
/*************************************/
/* EXTERNAL FUNCTIONS */
/*************************************/
extern OSMesgQueue LeoIPLevent_que;
extern OSMesg LeoIPLcur_command;
extern u8 LeoIPLdrive_flag;
extern struct tgt_param_form LeoIPLtgt_param;
extern OSPiHandle *LeoIPLPiInfo;
/* ==========================================================================
* Function : leoiplAnalize_asic_status
* --------------------------------------------------------------------------
* Description : Analize drive status register to check mecha condition.
* --------------------------------------------------------------------------
* IN : NON
* OUT : NON
* ARG : cur_status .. drive status to check
* RET : 0 - GOOD
* : NOT 0 - ERROR SENSE CODE
* ==========================================================================
*/
u8 leoiplAnalize_asic_status(u32 cur_status)
{
if ((cur_status^=LEO_STAT_DISK) & (LEO_STAT_DISK + LEO_STAT_BUSY + LEO_STAT_RESET + LEO_STAT_DISK_CHANGE +
LEO_STAT_MECHA_ERROR + LEO_STAT_NC_CHK ) )
{
/* HardWare err, reset or disk-chg.Clear system info flag to re-read */
if (cur_status & (LEO_STAT_DISK + LEO_STAT_BUSY + LEO_STAT_RESET + LEO_STAT_DISK_CHANGE + LEO_STAT_NC_CHK ) )
leoiplClr_sys_read();
/*--------------------------*/
/* check HardWare err first */
/*--------------------------*/
/* Communication error ? */
if (cur_status & LEO_STAT_NC_CHK)
return(LEO_SENSE_DEVICE_COMMUNICATION_FAILURE);
/* Busy ? */
if ((cur_status & (LEO_STAT_BUSY+LEO_STAT_RESET)) == LEO_STAT_BUSY)
return(LEO_SENSE_COMMAND_PHASE_ERROR);
/*---------------------------------------------*/
/* CHECK RESET / DISK-CHANGE / NO-DISK */
/*---------------------------------------------*/
/* Reset ? */
if (cur_status & LEO_STAT_RESET)
return (LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
/* No disk ? */
if (cur_status & LEO_STAT_DISK)
return (LEO_SENSE_MEDIUM_NOT_PRESENT);
/* Disk Changed ? */
if (cur_status & LEO_STAT_DISK_CHANGE)
return (LEO_SENSE_MEDIUM_MAY_HAVE_CHANGED);
/*---------------------------------------------*/
/* CHECK other err */
/*---------------------------------------------*/
/* Other mecha error ? */
if (cur_status & LEO_STAT_MECHA_ERROR)
return (LEO_SENSE_NO_SEEK_COMPLETE);
}
/* OK */
return LEO_SENSE_NO_ADDITIONAL_SENSE_INFOMATION;
}
/* ==========================================================================
* Function : leoiplChk_asic_ready
* --------------------------------------------------------------------------
* Description : Pre-Check drive status to issue command to drive.
* --------------------------------------------------------------------------
* IN : non
* OUT : non
* ARG : asic_cmd .. command to drive
* RET : 0 - good.
* : not 0 - no good . error sense code .
* ==========================================================================
*/
u8 leoiplChk_asic_ready(u32 asic_cmd)
{
u32 cur_status;
u32 sense_code;
leoiplGet_leo_status(&cur_status);
sense_code = leoiplAnalize_asic_status(cur_status);
switch (sense_code)
{
case LEO_SENSE_MEDIUM_MAY_HAVE_CHANGED:
if (asic_cmd == ASIC_CLR_CHGFLG)
return LEO_SENSE_NO_ADDITIONAL_SENSE_INFOMATION;
case LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED:
if (!(cur_status & LEO_STAT_BUSY))
{
/* Clear reset/disk-change flag in drive */
if (asic_cmd == ASIC_CLR_RSTFLG)
return LEO_SENSE_NO_ADDITIONAL_SENSE_INFOMATION;
if (leoiplRecv_event_mesg(OS_MESG_NOBLOCK))
return (LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
leoiplAd16WriteIo(ASIC_CMD, ASIC_CLR_RSTFLG);
if (leoiplRecv_event_mesg(OS_MESG_BLOCK))
return (LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
}
break;
case LEO_SENSE_MEDIUM_NOT_PRESENT:
/* Disk needed ? */
if (asic_cmd & ASIC_NEED_DISK_IN)
break;
case LEO_SENSE_NO_SEEK_COMPLETE:
return LEO_SENSE_NO_ADDITIONAL_SENSE_INFOMATION;
default:
;
}
return sense_code;
}
/* ==========================================================================
* Function : leoiplChk_done_status
* --------------------------------------------------------------------------
* Description : Post Check of mecha command to drive.
* --------------------------------------------------------------------------
* IN : non
* OUT : non
* ARG : asic_cmd .. command to drive
* RET : 0 - good.
* : not 0 - error sense code .
* ==========================================================================
*/
u8 leoiplChk_done_status(u32 asic_cmd)
{
u32 cur_status,code;
leoiplGet_leo_status(&cur_status);
code = leoiplAnalize_asic_status(cur_status);
switch (code)
{
case LEO_SENSE_MEDIUM_MAY_HAVE_CHANGED:
case LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED:
if (!(cur_status & LEO_STAT_BUSY))
{
/* Clear reset/disk-change flag */
if (leoiplRecv_event_mesg(OS_MESG_NOBLOCK))
return (LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
leoiplAd16WriteIo(ASIC_CMD, ASIC_CLR_RSTFLG);
if (leoiplRecv_event_mesg(OS_MESG_BLOCK))
return (LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
}
break;
case LEO_SENSE_MEDIUM_NOT_PRESENT:
/* error if command needs disk */
if (asic_cmd & ASIC_NEED_DISK_IN)
break;
return LEO_SENSE_NO_ADDITIONAL_SENSE_INFOMATION;
case LEO_SENSE_NO_SEEK_COMPLETE:
/* request more information */
leoiplAd16WriteIo(ASIC_DATA, 0x00);
if (leoiplRecv_event_mesg(OS_MESG_NOBLOCK))
return (LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
leoiplAd16WriteIo(ASIC_CMD , ASIC_REQ_STATUS);
/* wait done */
if (leoiplRecv_event_mesg(OS_MESG_BLOCK))
return (LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
leoiplGet_leo_asic_data(&cur_status);
if (code = leoiplChk_asic_ready(ASIC_REQ_STATUS))
return code;
/* setup error sense code */
if (cur_status & MC_ERR_DIAGNOSTIC) /* drive diag err */
return(LEO_SENSE_DIAGNOSTIC_FAILURE);
if (cur_status & MC_ERR_SERVO_DATA) /* servo read err */
return(LEO_SENSE_NO_REFERENCE_POSITION_FOUND);
if (cur_status & MC_ERR_INDEX) /* Index detect error or timing NG */
return(LEO_SENSE_DRIVE_NOT_READY);
if (cur_status & MC_ERR_SETRING_TIMEOUT) /* seek timeout */
return(LEO_SENSE_NO_SEEK_COMPLETE);
if (cur_status & MC_INVALID_PARAM) /* invalid parameter(data) */
return(LEO_SENSE_INCOMPATIBLE_MEDIUM_INSTALLED); /* (invalid disk-type or seek out of range) */
return(LEO_SENSE_DEVICE_COMMUNICATION_FAILURE); /* unknown command */
/*case LEO_SENSE_DEVICE_COMMUNICATION_FAILURE:*/
/*case LEO_SENSE_COMMAND_PHASE_ERROR: */
default:
;
}
return code;
}
/* ==========================================================================
* Function : leoiplSend_asic_cmd_i
* --------------------------------------------------------------------------
* Description : Issue commnad to drive. not wait done.
* --------------------------------------------------------------------------
* IN : NON
* OUT : ((LEOCmdHeader *)LeoIPLcur_command)->sense is set at error.
* ARG : asic_cmd : command, asic_data : data to drive
* RET : 0 - command issue normally
* : not 0 - error sense code . command do not issue.
* ==========================================================================
*/
u8 leoiplSend_asic_cmd_i(u32 asic_cmd, u32 asic_data)
{
u8 status;
if (status = leoiplChk_asic_ready(asic_cmd))
return(((LEOCmdHeader *)LeoIPLcur_command)->sense = status);
/* ASICのﾚｼﾞｽﾀに指定のﾃﾞｰﾀとｺﾏﾝﾄﾞを発行する */
leoiplAd16WriteIo(ASIC_DATA, asic_data);
if (leoiplRecv_event_mesg(OS_MESG_NOBLOCK))
return(((LEOCmdHeader *)LeoIPLcur_command)->sense = LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
leoiplAd16WriteIo(ASIC_CMD , asic_cmd );
return(FUNC_OK);
}
/* ==========================================================================
* Function : leoiplWait_mecha_cmd_done
* --------------------------------------------------------------------------
* Description : Wait drive command done and check error.
* --------------------------------------------------------------------------
* IN : non
* OUT : ((LEOCmdHeader *)LeoIPLcur_command)->sense is set at error
* ARG : command code that drive executing.
* RET : 00 - good
* : 00以外 - error sense code.
* ==========================================================================
*/
u8 leoiplWait_mecha_cmd_done(u32 asic_cmd )
{
u32 status;
/* wait done */
if (leoiplRecv_event_mesg(OS_MESG_BLOCK))
return(LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED);
/* check done status */
if (status = leoiplChk_done_status(asic_cmd))
return(status);
return(FUNC_OK);
}
/* ==========================================================================
* Function : leoiplSend_asic_cmd_w
* --------------------------------------------------------------------------
* Description : Issue command to drive,waiting done and check error.
* --------------------------------------------------------------------------
* IN : NON
* OUT : ((LEOCmdHeader *)LeoIPLcur_command)->sense is set at error
* ARG : command and data to issue to drive
* RET : 00 - good
* : 00以外 - error sense code
* ==========================================================================
*/
u8 leoiplSend_asic_cmd_w(u32 asic_cmd, u32 asic_data)
{
u32 status;
if (status = leoiplSend_asic_cmd_i(asic_cmd, asic_data))
return (status);
return (status = leoiplWait_mecha_cmd_done(asic_cmd) );
}
/* ==========================================================================
* Function : leoiplSeek_read_i
* --------------------------------------------------------------------------
* Description : Issue seek command (not wait done)
* --------------------------------------------------------------------------
* IN : LEOcur_command, LeoIPLtgt_param.XXX
* OUT : non
* ARG : non
* RET : 0 - good
* : not 0 - error sense code
* ==========================================================================
*/
u8 leoiplSeek_read_i(void)
{
return leoiplSend_asic_cmd_i(ASIC_RD_SEEK, (u32)LeoIPLtgt_param.cylinder << 16);
}
/* ==========================================================================
* Function : leoiplDetect_index_w
* --------------------------------------------------------------------------
* Description : Issue Index lock command , wait done and check error
* --------------------------------------------------------------------------
* IN : non
* OUT : non
* ARG : non
* RET : 0 - good
* : not 0 - error sense code
* ==========================================================================
*/
u8 leoiplDetect_index_w(void)
{
return leoiplSend_asic_cmd_w(ASIC_INDEX_LOCK_RETRY, 0);
}
/**********************************************************
* Function : leoiplChk_err_retry
* ---------------------------------------------------------
* Description : Check retry enable or not .
* IN : non
* OUT : non
* ARG : sense ....sense code of error
* RET : 0 ...... ENABLE RETRY.
* NOT 0... DISABLE RETRY.COMMAND SHOULD BE STOP.
**********************************************************/
u32 leoiplChk_err_retry(u32 sense)
{
switch (sense)
{
case LEO_SENSE_MEDIUM_MAY_HAVE_CHANGED:
case LEO_SENSE_MEDIUM_NOT_PRESENT: /* no disk */
case LEO_SENSE_POWERONRESET_DEVICERESET_OCCURED: /* drive reset */
case LEO_SENSE_DEVICE_COMMUNICATION_FAILURE: /* ﾄﾞﾗｲﾌﾞの接続不良 */
case LEO_SENSE_COMMAND_PHASE_ERROR:
case LEO_SENSE_DIAGNOSTIC_FAILURE:
return -1;
default:
;
}
return 0;
}
/* ==========================================================================
* Function : leoiplRecv_event_mesg
* --------------------------------------------------------------------------
* Descriprion : Wait event que message.
* Do drive reset if NMI-reset is detected
* --------------------------------------------------------------------------
* IN : NON
* OUT : NON
* ARG : control ( OS_MESG_BLOCK / OS_MESG_NOBLOCK )
* RET : 0 - GOOD
* : NOT 0 - NMI_RESET is detected
* ==========================================================================
*/
u8 leoiplRecv_event_mesg(s32 control)
{
u32 done_mesg;
/* WAIT DONE MESSAGE */
if (osRecvMesg(IPLEVENT_QUE, (OSMesg*)&done_mesg, control) == 0)
{
if (done_mesg == (u32)MES_NMI_RESET)
{
/* Reset drive if done_mesg is NMI_RESET */
leoiplDrive_reset();
return (0xff);
}
}
return 0;
}
/* ==========================================================================
* Function : leoiplDrive_reset
* --------------------------------------------------------------------------
* Description : Do drive reset .
* --------------------------------------------------------------------------
* IN : non
* OUT : non
* ARG : non
* RET : non
* ==========================================================================
*/
void leoiplDrive_reset(void)
{
leoiplAd16WriteIo(ASIC_HARD_RESET, ASIC_RESET_CODE);
}