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1275 |
phoenix |
/**************************************************************************
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* Initio A100 device driver for Linux.
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*
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* Copyright (c) 1994-1998 Initio Corporation
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* --------------------------------------------------------------------------
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Where this Software is combined with software released under the terms of
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* the GNU General Public License ("GPL") and the terms of the GPL would require the
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* combined work to also be released under the terms of the GPL, the terms
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* and conditions of this License will apply in addition to those of the
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* GPL with the exception of any terms or conditions of this License that
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* conflict with, or are expressly prohibited by, the GPL.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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**************************************************************************
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*
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* module: inia100.c
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* DESCRIPTION:
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* This is the Linux low-level SCSI driver for Initio INIA100 SCSI host
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* adapters
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* 09/24/98 hl - v1.02 initial production release.
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* 12/19/98 bv - v1.02a Use spinlocks for 2.1.95 and up.
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**************************************************************************/
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#define CVT_LINUX_VERSION(V,P,S) (V * 65536 + P * 256 + S)
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#ifndef LINUX_VERSION_CODE
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#include <linux/version.h>
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#endif
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#include <linux/module.h>
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#include <stdarg.h>
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#include <asm/irq.h>
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#include <linux/errno.h>
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#include <linux/delay.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/blk.h>
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#include <linux/spinlock.h>
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#include <linux/stat.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/ioport.h>
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#include <linux/sched.h>
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#include <linux/proc_fs.h>
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#include <asm/io.h>
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#include "scsi.h"
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#include "sd.h"
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#include "hosts.h"
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#include <linux/slab.h>
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#include "inia100.h"
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static Scsi_Host_Template driver_template = INIA100;
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#include "scsi_module.c"
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#define ORC_RDWORD(x,y) (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) ))
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char *inia100_Copyright = "Copyright (C) 1998-99";
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char *inia100_InitioName = "by Initio Corporation";
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char *inia100_ProductName = "INI-A100U2W";
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char *inia100_Version = "v1.02c";
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/* set by inia100_setup according to the command line */
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static int setup_called = 0;
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static int orc_num_ch = MAX_SUPPORTED_ADAPTERS; /* Maximum 4 adapters */
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/* ---- INTERNAL VARIABLES ---- */
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#define NUMBER(arr) (sizeof(arr) / sizeof(arr[0]))
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static char *setup_str = (char *) NULL;
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static void inia100_intr0(int irq, void *dev_id, struct pt_regs *);
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static void inia100_intr1(int irq, void *dev_id, struct pt_regs *);
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static void inia100_intr2(int irq, void *dev_id, struct pt_regs *);
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static void inia100_intr3(int irq, void *dev_id, struct pt_regs *);
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static void inia100_intr4(int irq, void *dev_id, struct pt_regs *);
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static void inia100_intr5(int irq, void *dev_id, struct pt_regs *);
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static void inia100_intr6(int irq, void *dev_id, struct pt_regs *);
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static void inia100_intr7(int irq, void *dev_id, struct pt_regs *);
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static void inia100_panic(char *msg);
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void inia100SCBPost(BYTE * pHcb, BYTE * pScb);
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/* ---- EXTERNAL VARIABLES ---- */
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extern int Addinia100_into_Adapter_table(WORD, WORD, BYTE, BYTE, BYTE);
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extern void init_inia100Adapter_table(void);
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extern ORC_SCB *orc_alloc_scb(ORC_HCS * hcsp);
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extern void orc_exec_scb(ORC_HCS * hcsp, ORC_SCB * scbp);
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extern void orc_release_scb(ORC_HCS * hcsp, ORC_SCB * scbp);
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extern void orc_interrupt(ORC_HCS * hcsp);
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extern int orc_device_reset(ORC_HCS * pHCB, ULONG SCpnt, unsigned int target, unsigned int ResetFlags);
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extern int orc_reset_scsi_bus(ORC_HCS * pHCB);
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extern int abort_SCB(ORC_HCS * hcsp, ORC_SCB * pScb);
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extern int orc_abort_srb(ORC_HCS * hcsp, ULONG SCpnt);
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extern void get_orcPCIConfig(ORC_HCS * pCurHcb, int ch_idx);
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extern int init_orchid(ORC_HCS * hcsp);
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extern int orc_num_scb;
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extern ORC_HCS orc_hcs[];
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/*****************************************************************************
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Function name : inia100AppendSRBToQueue
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Description : This function will push current request into save list
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Input : pSRB - Pointer to SCSI request block.
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pHCB - Pointer to host adapter structure
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Output : None.
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Return : None.
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*****************************************************************************/
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static void inia100AppendSRBToQueue(ORC_HCS * pHCB, Scsi_Cmnd * pSRB)
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{
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ULONG flags;
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spin_lock_irqsave(&(pHCB->pSRB_lock), flags);
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pSRB->next = NULL; /* Pointer to next */
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if (pHCB->pSRB_head == NULL)
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pHCB->pSRB_head = pSRB;
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else
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pHCB->pSRB_tail->next = pSRB; /* Pointer to next */
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pHCB->pSRB_tail = pSRB;
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spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags);
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return;
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}
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/*****************************************************************************
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Function name : inia100PopSRBFromQueue
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Description : This function will pop current request from save list
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Input : pHCB - Pointer to host adapter structure
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Output : None.
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Return : pSRB - Pointer to SCSI request block.
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*****************************************************************************/
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static Scsi_Cmnd *inia100PopSRBFromQueue(ORC_HCS * pHCB)
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{
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Scsi_Cmnd *pSRB;
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ULONG flags;
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spin_lock_irqsave(&(pHCB->pSRB_lock), flags);
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if ((pSRB = (Scsi_Cmnd *) pHCB->pSRB_head) != NULL) {
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pHCB->pSRB_head = pHCB->pSRB_head->next;
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pSRB->next = NULL;
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}
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spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags);
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return (pSRB);
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}
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/*****************************************************************************
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Function name : inia100_setup
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Description :
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Input : pHCB - Pointer to host adapter structure
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Output : None.
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Return : pSRB - Pointer to SCSI request block.
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*****************************************************************************/
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void inia100_setup(char *str, int *ints)
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{
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if (setup_called)
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inia100_panic("inia100: inia100_setup called twice.\n");
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setup_called = ints[0];
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setup_str = str;
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}
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/*****************************************************************************
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Function name : orc_ReturnNumberOfAdapters
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Description : This function will scan PCI bus to get all Orchid card
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Input : None.
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Output : None.
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Return : SUCCESSFUL - Successful scan
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ohterwise - No drives founded
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*****************************************************************************/
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int orc_ReturnNumberOfAdapters(void)
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{
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unsigned int i, iAdapters;
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iAdapters = 0;
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/*
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* PCI-bus probe.
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*/
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if (pcibios_present()) {
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struct {
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unsigned short vendor_id;
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unsigned short device_id;
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} const inia100_pci_devices[] =
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{
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{ORC_VENDOR_ID, I920_DEVICE_ID},
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{ORC_VENDOR_ID, ORC_DEVICE_ID}
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};
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unsigned int dRegValue;
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WORD wBIOS, wBASE;
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BYTE bPCIBusNum, bInterrupt, bPCIDeviceNum;
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#ifdef MMAPIO
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unsigned long page_offset, base;
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#endif
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struct pci_dev *pdev = NULL;
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bPCIBusNum = 0;
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bPCIDeviceNum = 0;
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init_inia100Adapter_table();
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for (i = 0; i < NUMBER(inia100_pci_devices); i++) {
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pdev = NULL;
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while ((pdev = pci_find_device(inia100_pci_devices[i].vendor_id,
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inia100_pci_devices[i].device_id,
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pdev)))
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{
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if (pci_enable_device(pdev))
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continue;
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if (iAdapters >= MAX_SUPPORTED_ADAPTERS)
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break; /* Never greater than maximum */
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if (i == 0) {
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/*
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printk("inia100: The RAID controller is not supported by\n");
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printk("inia100: this driver, we are ignoring it.\n");
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*/
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} else {
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/*
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* Read sundry information from PCI BIOS.
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*/
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bPCIBusNum = pdev->bus->number;
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bPCIDeviceNum = pdev->devfn;
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dRegValue = pci_resource_start(pdev, 0);
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if (dRegValue == -1) { /* Check return code */
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printk("\n\rinia100: orchid read configuration error.\n");
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return (0); /* Read configuration space error */
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}
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/* <02> read from base address + 0x50 offset to get the wBIOS balue. */
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wBASE = (WORD) dRegValue;
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/* Now read the interrupt line value */
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dRegValue = pdev->irq;
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bInterrupt = dRegValue; /* Assign interrupt line */
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wBIOS = ORC_RDWORD(wBASE, 0x50);
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pci_set_master(pdev);
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#ifdef MMAPIO
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base = wBASE & PAGE_MASK;
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page_offset = wBASE - base;
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/*
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* replace the next line with this one if you are using 2.1.x:
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* temp_p->maddr = ioremap(base, page_offset + 256);
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*/
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wBASE = ioremap(base, page_offset + 256);
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if (wBASE) {
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wBASE += page_offset;
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}
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#endif
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291 |
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292 |
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if (Addinia100_into_Adapter_table(wBIOS, wBASE, bInterrupt, bPCIBusNum,
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bPCIDeviceNum) == SUCCESSFUL)
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iAdapters++;
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}
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} /* while(pdev=....) */
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297 |
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} /* for PCI_DEVICES */
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} /* PCI BIOS present */
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return (iAdapters);
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}
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301 |
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302 |
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/*****************************************************************************
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303 |
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Function name : inia100_detect
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304 |
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Description :
|
305 |
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Input : pHCB - Pointer to host adapter structure
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306 |
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Output : None.
|
307 |
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Return : pSRB - Pointer to SCSI request block.
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308 |
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*****************************************************************************/
|
309 |
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int inia100_detect(Scsi_Host_Template * tpnt)
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310 |
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{
|
311 |
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ORC_HCS *pHCB;
|
312 |
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struct Scsi_Host *hreg;
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313 |
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U32 sz;
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314 |
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U32 i; /* 01/14/98 */
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315 |
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int ok = 0, iAdapters;
|
316 |
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ULONG dBiosAdr;
|
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BYTE *pbBiosAdr;
|
318 |
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tpnt->proc_name = "INIA100";
|
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if (setup_called) {
|
321 |
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/* Setup by inia100_setup */
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322 |
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printk("inia100: processing commandline: ");
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}
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324 |
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/* Get total number of adapters in the motherboard */
|
325 |
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iAdapters = orc_ReturnNumberOfAdapters();
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326 |
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327 |
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/* printk("inia100: Total Initio Adapters = %d\n", iAdapters); */
|
328 |
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if (iAdapters == 0) /* If no orc founded, return */
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329 |
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return (0);
|
330 |
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331 |
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orc_num_ch = (iAdapters > orc_num_ch) ? orc_num_ch : iAdapters;
|
332 |
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orc_num_scb = ORC_MAXQUEUE;
|
333 |
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|
334 |
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/* clear the memory needed for HCS */
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335 |
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i = orc_num_ch * sizeof(ORC_HCS);
|
336 |
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memset((unsigned char *) &orc_hcs[0], 0, i); /* Initialize orc_hcs 0 */
|
337 |
|
|
|
338 |
|
|
#if 0
|
339 |
|
|
printk("orc_num_scb= %x orc_num_ch= %x hcsize= %x scbsize= %x escbsize= %x\n",
|
340 |
|
|
orc_num_scb, orc_num_ch, sizeof(ORC_HCS), sizeof(ORC_SCB), sizeof(ESCB));
|
341 |
|
|
#endif
|
342 |
|
|
|
343 |
|
|
for (i = 0, pHCB = &orc_hcs[0]; /* Get pointer for control block */
|
344 |
|
|
i < orc_num_ch;
|
345 |
|
|
i++, pHCB++) {
|
346 |
|
|
|
347 |
|
|
pHCB->pSRB_head = NULL; /* Initial SRB save queue */
|
348 |
|
|
pHCB->pSRB_tail = NULL; /* Initial SRB save queue */
|
349 |
|
|
pHCB->pSRB_lock = SPIN_LOCK_UNLOCKED; /* SRB save queue lock */
|
350 |
|
|
pHCB->BitAllocFlagLock = SPIN_LOCK_UNLOCKED;
|
351 |
|
|
/* Get total memory needed for SCB */
|
352 |
|
|
sz = orc_num_scb * sizeof(ORC_SCB);
|
353 |
|
|
if ((pHCB->HCS_virScbArray = (PVOID) kmalloc(sz, GFP_ATOMIC | GFP_DMA)) == NULL) {
|
354 |
|
|
printk("inia100: SCB memory allocation error\n");
|
355 |
|
|
return (0);
|
356 |
|
|
}
|
357 |
|
|
memset((unsigned char *) pHCB->HCS_virScbArray, 0, sz);
|
358 |
|
|
pHCB->HCS_physScbArray = (U32) VIRT_TO_BUS(pHCB->HCS_virScbArray);
|
359 |
|
|
|
360 |
|
|
/* Get total memory needed for ESCB */
|
361 |
|
|
sz = orc_num_scb * sizeof(ESCB);
|
362 |
|
|
if ((pHCB->HCS_virEscbArray = (PVOID) kmalloc(sz, GFP_ATOMIC | GFP_DMA)) == NULL) {
|
363 |
|
|
printk("inia100: ESCB memory allocation error\n");
|
364 |
|
|
/* ?? does pHCB->HCS_virtScbArray leak ??*/
|
365 |
|
|
return (0);
|
366 |
|
|
}
|
367 |
|
|
memset((unsigned char *) pHCB->HCS_virEscbArray, 0, sz);
|
368 |
|
|
pHCB->HCS_physEscbArray = (U32) VIRT_TO_BUS(pHCB->HCS_virEscbArray);
|
369 |
|
|
|
370 |
|
|
get_orcPCIConfig(pHCB, i);
|
371 |
|
|
|
372 |
|
|
dBiosAdr = pHCB->HCS_BIOS;
|
373 |
|
|
dBiosAdr = (dBiosAdr << 4);
|
374 |
|
|
|
375 |
|
|
pbBiosAdr = phys_to_virt(dBiosAdr);
|
376 |
|
|
|
377 |
|
|
if (init_orchid(pHCB)) { /* Initial orchid chip */
|
378 |
|
|
printk("inia100: initial orchid fail!!\n");
|
379 |
|
|
return (0);
|
380 |
|
|
}
|
381 |
|
|
request_region(pHCB->HCS_Base, 256, "inia100"); /* Register */
|
382 |
|
|
|
383 |
|
|
hreg = scsi_register(tpnt, sizeof(ORC_HCS));
|
384 |
|
|
if (hreg == NULL) {
|
385 |
|
|
release_region(pHCB->HCS_Base, 256); /* Register */
|
386 |
|
|
return 0;
|
387 |
|
|
}
|
388 |
|
|
hreg->io_port = pHCB->HCS_Base;
|
389 |
|
|
hreg->n_io_port = 0xff;
|
390 |
|
|
hreg->can_queue = orc_num_scb; /* 03/05/98 */
|
391 |
|
|
|
392 |
|
|
hreg->unique_id = pHCB->HCS_Base;
|
393 |
|
|
hreg->max_id = pHCB->HCS_MaxTar;
|
394 |
|
|
|
395 |
|
|
hreg->max_lun = 32; /* 10/21/97 */
|
396 |
|
|
/*
|
397 |
|
|
hreg->max_lun = 8;
|
398 |
|
|
hreg->max_channel = 1;
|
399 |
|
|
*/
|
400 |
|
|
hreg->irq = pHCB->HCS_Intr;
|
401 |
|
|
hreg->this_id = pHCB->HCS_SCSI_ID; /* Assign HCS index */
|
402 |
|
|
hreg->base = (unsigned long)pHCB;
|
403 |
|
|
|
404 |
|
|
#if 1
|
405 |
|
|
hreg->sg_tablesize = TOTAL_SG_ENTRY; /* Maximun support is 32 */
|
406 |
|
|
#else
|
407 |
|
|
hreg->sg_tablesize = SG_NONE; /* No SG */
|
408 |
|
|
#endif
|
409 |
|
|
|
410 |
|
|
/* Initial orc chip */
|
411 |
|
|
switch (i) {
|
412 |
|
|
case 0:
|
413 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr0, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
414 |
|
|
break;
|
415 |
|
|
case 1:
|
416 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr1, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
417 |
|
|
break;
|
418 |
|
|
case 2:
|
419 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr2, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
420 |
|
|
break;
|
421 |
|
|
case 3:
|
422 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr3, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
423 |
|
|
break;
|
424 |
|
|
case 4:
|
425 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr4, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
426 |
|
|
break;
|
427 |
|
|
case 5:
|
428 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr5, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
429 |
|
|
break;
|
430 |
|
|
case 6:
|
431 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr6, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
432 |
|
|
break;
|
433 |
|
|
case 7:
|
434 |
|
|
ok = request_irq(pHCB->HCS_Intr, inia100_intr7, SA_INTERRUPT | SA_SHIRQ, "inia100", hreg);
|
435 |
|
|
break;
|
436 |
|
|
default:
|
437 |
|
|
inia100_panic("inia100: Too many host adapters\n");
|
438 |
|
|
break;
|
439 |
|
|
}
|
440 |
|
|
|
441 |
|
|
if (ok < 0) {
|
442 |
|
|
if (ok == -EINVAL) {
|
443 |
|
|
printk("inia100: bad IRQ %d.\n", pHCB->HCS_Intr);
|
444 |
|
|
printk(" Contact author.\n");
|
445 |
|
|
} else {
|
446 |
|
|
if (ok == -EBUSY)
|
447 |
|
|
printk("inia100: IRQ %d already in use. Configure another.\n", pHCB->HCS_Intr);
|
448 |
|
|
else {
|
449 |
|
|
printk("\ninia100: Unexpected error code on requesting IRQ %d.\n",
|
450 |
|
|
pHCB->HCS_Intr);
|
451 |
|
|
printk(" Contact author.\n");
|
452 |
|
|
}
|
453 |
|
|
}
|
454 |
|
|
inia100_panic("inia100: driver needs an IRQ.\n");
|
455 |
|
|
}
|
456 |
|
|
}
|
457 |
|
|
|
458 |
|
|
tpnt->this_id = -1;
|
459 |
|
|
tpnt->can_queue = 1;
|
460 |
|
|
return 1;
|
461 |
|
|
}
|
462 |
|
|
|
463 |
|
|
/*****************************************************************************
|
464 |
|
|
Function name : inia100BuildSCB
|
465 |
|
|
Description :
|
466 |
|
|
Input : pHCB - Pointer to host adapter structure
|
467 |
|
|
Output : None.
|
468 |
|
|
Return : pSRB - Pointer to SCSI request block.
|
469 |
|
|
*****************************************************************************/
|
470 |
|
|
static void inia100BuildSCB(ORC_HCS * pHCB, ORC_SCB * pSCB, Scsi_Cmnd * SCpnt)
|
471 |
|
|
{ /* Create corresponding SCB */
|
472 |
|
|
struct scatterlist *pSrbSG;
|
473 |
|
|
ORC_SG *pSG; /* Pointer to SG list */
|
474 |
|
|
int i;
|
475 |
|
|
U32 TotalLen;
|
476 |
|
|
ESCB *pEScb;
|
477 |
|
|
|
478 |
|
|
pEScb = pSCB->SCB_EScb;
|
479 |
|
|
pEScb->SCB_Srb = SCpnt;
|
480 |
|
|
pSG = NULL;
|
481 |
|
|
|
482 |
|
|
pSCB->SCB_Opcode = ORC_EXECSCSI;
|
483 |
|
|
pSCB->SCB_Flags = SCF_NO_DCHK; /* Clear done bit */
|
484 |
|
|
pSCB->SCB_Target = SCpnt->target;
|
485 |
|
|
pSCB->SCB_Lun = SCpnt->lun;
|
486 |
|
|
pSCB->SCB_Reserved0 = 0;
|
487 |
|
|
pSCB->SCB_Reserved1 = 0;
|
488 |
|
|
pSCB->SCB_SGLen = 0;
|
489 |
|
|
|
490 |
|
|
if ((pSCB->SCB_XferLen = (U32) SCpnt->request_bufflen)) {
|
491 |
|
|
pSG = (ORC_SG *) & pEScb->ESCB_SGList[0];
|
492 |
|
|
if (SCpnt->use_sg) {
|
493 |
|
|
TotalLen = 0;
|
494 |
|
|
pSCB->SCB_SGLen = (U32) (SCpnt->use_sg * 8);
|
495 |
|
|
pSrbSG = (struct scatterlist *) SCpnt->request_buffer;
|
496 |
|
|
for (i = 0; i < SCpnt->use_sg; i++, pSG++, pSrbSG++) {
|
497 |
|
|
pSG->SG_Ptr = (U32) (VIRT_TO_BUS(pSrbSG->address));
|
498 |
|
|
pSG->SG_Len = (U32) pSrbSG->length;
|
499 |
|
|
TotalLen += (U32) pSrbSG->length;
|
500 |
|
|
}
|
501 |
|
|
} else { /* Non SG */
|
502 |
|
|
pSCB->SCB_SGLen = 0x8;
|
503 |
|
|
pSG->SG_Ptr = (U32) (VIRT_TO_BUS(SCpnt->request_buffer));
|
504 |
|
|
pSG->SG_Len = (U32) SCpnt->request_bufflen;
|
505 |
|
|
}
|
506 |
|
|
}
|
507 |
|
|
pSCB->SCB_SGPAddr = (U32) pSCB->SCB_SensePAddr;
|
508 |
|
|
pSCB->SCB_HaStat = 0;
|
509 |
|
|
pSCB->SCB_TaStat = 0;
|
510 |
|
|
pSCB->SCB_Link = 0xFF;
|
511 |
|
|
pSCB->SCB_SenseLen = SENSE_SIZE;
|
512 |
|
|
pSCB->SCB_CDBLen = SCpnt->cmd_len;
|
513 |
|
|
if (pSCB->SCB_CDBLen >= IMAX_CDB) {
|
514 |
|
|
printk("max cdb length= %x\b", SCpnt->cmd_len);
|
515 |
|
|
pSCB->SCB_CDBLen = IMAX_CDB;
|
516 |
|
|
}
|
517 |
|
|
pSCB->SCB_Ident = SCpnt->lun | DISC_ALLOW;
|
518 |
|
|
if (SCpnt->device->tagged_supported) { /* Tag Support */
|
519 |
|
|
pSCB->SCB_TagMsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */
|
520 |
|
|
} else {
|
521 |
|
|
pSCB->SCB_TagMsg = 0; /* No tag support */
|
522 |
|
|
}
|
523 |
|
|
memcpy(&pSCB->SCB_CDB[0], &SCpnt->cmnd, pSCB->SCB_CDBLen);
|
524 |
|
|
return;
|
525 |
|
|
}
|
526 |
|
|
|
527 |
|
|
/*****************************************************************************
|
528 |
|
|
Function name : inia100_queue
|
529 |
|
|
Description : Queue a command and setup interrupts for a free bus.
|
530 |
|
|
Input : pHCB - Pointer to host adapter structure
|
531 |
|
|
Output : None.
|
532 |
|
|
Return : pSRB - Pointer to SCSI request block.
|
533 |
|
|
*****************************************************************************/
|
534 |
|
|
int inia100_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
|
535 |
|
|
{
|
536 |
|
|
register ORC_SCB *pSCB;
|
537 |
|
|
ORC_HCS *pHCB; /* Point to Host adapter control block */
|
538 |
|
|
|
539 |
|
|
if (SCpnt->lun > 16) {
|
540 |
|
|
SCpnt->result = (DID_TIME_OUT << 16);
|
541 |
|
|
done(SCpnt); /* Notify system DONE */
|
542 |
|
|
return (0);
|
543 |
|
|
}
|
544 |
|
|
pHCB = (ORC_HCS *) SCpnt->host->base;
|
545 |
|
|
SCpnt->scsi_done = done;
|
546 |
|
|
/* Get free SCSI control block */
|
547 |
|
|
if ((pSCB = orc_alloc_scb(pHCB)) == NULL) {
|
548 |
|
|
inia100AppendSRBToQueue(pHCB, SCpnt); /* Buffer this request */
|
549 |
|
|
/* printk("inia100_entry: can't allocate SCB\n"); */
|
550 |
|
|
return (0);
|
551 |
|
|
}
|
552 |
|
|
inia100BuildSCB(pHCB, pSCB, SCpnt);
|
553 |
|
|
orc_exec_scb(pHCB, pSCB); /* Start execute SCB */
|
554 |
|
|
|
555 |
|
|
return (0);
|
556 |
|
|
}
|
557 |
|
|
|
558 |
|
|
/*****************************************************************************
|
559 |
|
|
Function name : inia100_command
|
560 |
|
|
Description : We only support command in interrupt-driven fashion
|
561 |
|
|
Input : pHCB - Pointer to host adapter structure
|
562 |
|
|
Output : None.
|
563 |
|
|
Return : pSRB - Pointer to SCSI request block.
|
564 |
|
|
*****************************************************************************/
|
565 |
|
|
int inia100_command(Scsi_Cmnd * SCpnt)
|
566 |
|
|
{
|
567 |
|
|
printk("inia100: interrupt driven driver; use inia100_queue()\n");
|
568 |
|
|
return -1;
|
569 |
|
|
}
|
570 |
|
|
|
571 |
|
|
/*****************************************************************************
|
572 |
|
|
Function name : inia100_abort
|
573 |
|
|
Description : Abort a queued command.
|
574 |
|
|
(commands that are on the bus can't be aborted easily)
|
575 |
|
|
Input : pHCB - Pointer to host adapter structure
|
576 |
|
|
Output : None.
|
577 |
|
|
Return : pSRB - Pointer to SCSI request block.
|
578 |
|
|
*****************************************************************************/
|
579 |
|
|
int inia100_abort(Scsi_Cmnd * SCpnt)
|
580 |
|
|
{
|
581 |
|
|
ORC_HCS *hcsp;
|
582 |
|
|
|
583 |
|
|
hcsp = (ORC_HCS *) SCpnt->host->base;
|
584 |
|
|
return orc_abort_srb(hcsp, (ULONG) SCpnt);
|
585 |
|
|
}
|
586 |
|
|
|
587 |
|
|
/*****************************************************************************
|
588 |
|
|
Function name : inia100_reset
|
589 |
|
|
Description : Reset registers, reset a hanging bus and
|
590 |
|
|
kill active and disconnected commands for target w/o soft reset
|
591 |
|
|
Input : pHCB - Pointer to host adapter structure
|
592 |
|
|
Output : None.
|
593 |
|
|
Return : pSRB - Pointer to SCSI request block.
|
594 |
|
|
*****************************************************************************/
|
595 |
|
|
int inia100_reset(Scsi_Cmnd * SCpnt, unsigned int reset_flags)
|
596 |
|
|
{ /* I need Host Control Block Information */
|
597 |
|
|
ORC_HCS *pHCB;
|
598 |
|
|
pHCB = (ORC_HCS *) SCpnt->host->base;
|
599 |
|
|
|
600 |
|
|
if (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET))
|
601 |
|
|
return orc_reset_scsi_bus(pHCB);
|
602 |
|
|
else
|
603 |
|
|
return orc_device_reset(pHCB, (ULONG) SCpnt, SCpnt->target, reset_flags);
|
604 |
|
|
|
605 |
|
|
}
|
606 |
|
|
|
607 |
|
|
/*****************************************************************************
|
608 |
|
|
Function name : inia100SCBPost
|
609 |
|
|
Description : This is callback routine be called when orc finish one
|
610 |
|
|
SCSI command.
|
611 |
|
|
Input : pHCB - Pointer to host adapter control block.
|
612 |
|
|
pSCB - Pointer to SCSI control block.
|
613 |
|
|
Output : None.
|
614 |
|
|
Return : None.
|
615 |
|
|
*****************************************************************************/
|
616 |
|
|
void inia100SCBPost(BYTE * pHcb, BYTE * pScb)
|
617 |
|
|
{
|
618 |
|
|
Scsi_Cmnd *pSRB; /* Pointer to SCSI request block */
|
619 |
|
|
ORC_HCS *pHCB;
|
620 |
|
|
ORC_SCB *pSCB;
|
621 |
|
|
ESCB *pEScb;
|
622 |
|
|
|
623 |
|
|
pHCB = (ORC_HCS *) pHcb;
|
624 |
|
|
pSCB = (ORC_SCB *) pScb;
|
625 |
|
|
pEScb = pSCB->SCB_EScb;
|
626 |
|
|
if ((pSRB = (Scsi_Cmnd *) pEScb->SCB_Srb) == 0) {
|
627 |
|
|
printk("inia100SCBPost: SRB pointer is empty\n");
|
628 |
|
|
orc_release_scb(pHCB, pSCB); /* Release SCB for current channel */
|
629 |
|
|
return;
|
630 |
|
|
}
|
631 |
|
|
pEScb->SCB_Srb = NULL;
|
632 |
|
|
|
633 |
|
|
switch (pSCB->SCB_HaStat) {
|
634 |
|
|
case 0x0:
|
635 |
|
|
case 0xa: /* Linked command complete without error and linked normally */
|
636 |
|
|
case 0xb: /* Linked command complete without error interrupt generated */
|
637 |
|
|
pSCB->SCB_HaStat = 0;
|
638 |
|
|
break;
|
639 |
|
|
|
640 |
|
|
case 0x11: /* Selection time out-The initiator selection or target
|
641 |
|
|
reselection was not complete within the SCSI Time out period */
|
642 |
|
|
pSCB->SCB_HaStat = DID_TIME_OUT;
|
643 |
|
|
break;
|
644 |
|
|
|
645 |
|
|
case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus
|
646 |
|
|
phase sequence was requested by the target. The host adapter
|
647 |
|
|
will generate a SCSI Reset Condition, notifying the host with
|
648 |
|
|
a SCRD interrupt */
|
649 |
|
|
pSCB->SCB_HaStat = DID_RESET;
|
650 |
|
|
break;
|
651 |
|
|
|
652 |
|
|
case 0x1a: /* SCB Aborted. 07/21/98 */
|
653 |
|
|
pSCB->SCB_HaStat = DID_ABORT;
|
654 |
|
|
break;
|
655 |
|
|
|
656 |
|
|
case 0x12: /* Data overrun/underrun-The target attempted to transfer more data
|
657 |
|
|
than was allocated by the Data Length field or the sum of the
|
658 |
|
|
Scatter / Gather Data Length fields. */
|
659 |
|
|
case 0x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */
|
660 |
|
|
case 0x16: /* Invalid CCB Operation Code-The first byte of the CCB was invalid. */
|
661 |
|
|
|
662 |
|
|
default:
|
663 |
|
|
printk("inia100: %x %x\n", pSCB->SCB_HaStat, pSCB->SCB_TaStat);
|
664 |
|
|
pSCB->SCB_HaStat = DID_ERROR; /* Couldn't find any better */
|
665 |
|
|
break;
|
666 |
|
|
}
|
667 |
|
|
|
668 |
|
|
if (pSCB->SCB_TaStat == 2) { /* Check condition */
|
669 |
|
|
memcpy((unsigned char *) &pSRB->sense_buffer[0],
|
670 |
|
|
(unsigned char *) &pEScb->ESCB_SGList[0], SENSE_SIZE);
|
671 |
|
|
}
|
672 |
|
|
pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16);
|
673 |
|
|
pSRB->scsi_done(pSRB); /* Notify system DONE */
|
674 |
|
|
|
675 |
|
|
/* Find the next pending SRB */
|
676 |
|
|
if ((pSRB = inia100PopSRBFromQueue(pHCB)) != NULL) { /* Assume resend will success */
|
677 |
|
|
/* Reuse old SCB */
|
678 |
|
|
inia100BuildSCB(pHCB, pSCB, pSRB); /* Create corresponding SCB */
|
679 |
|
|
orc_exec_scb(pHCB, pSCB); /* Start execute SCB */
|
680 |
|
|
} else { /* No Pending SRB */
|
681 |
|
|
orc_release_scb(pHCB, pSCB); /* Release SCB for current channel */
|
682 |
|
|
}
|
683 |
|
|
return;
|
684 |
|
|
}
|
685 |
|
|
|
686 |
|
|
/*****************************************************************************
|
687 |
|
|
Function name : inia100_biosparam
|
688 |
|
|
Description : Return the "logical geometry"
|
689 |
|
|
Input : pHCB - Pointer to host adapter structure
|
690 |
|
|
Output : None.
|
691 |
|
|
Return : pSRB - Pointer to SCSI request block.
|
692 |
|
|
*****************************************************************************/
|
693 |
|
|
int inia100_biosparam(Scsi_Disk * disk, kdev_t dev, int *info_array)
|
694 |
|
|
{
|
695 |
|
|
ORC_HCS *pHcb; /* Point to Host adapter control block */
|
696 |
|
|
ORC_TCS *pTcb;
|
697 |
|
|
|
698 |
|
|
pHcb = (ORC_HCS *) disk->device->host->base;
|
699 |
|
|
pTcb = &pHcb->HCS_Tcs[disk->device->id];
|
700 |
|
|
|
701 |
|
|
if (pTcb->TCS_DrvHead) {
|
702 |
|
|
info_array[0] = pTcb->TCS_DrvHead;
|
703 |
|
|
info_array[1] = pTcb->TCS_DrvSector;
|
704 |
|
|
info_array[2] = disk->capacity / pTcb->TCS_DrvHead / pTcb->TCS_DrvSector;
|
705 |
|
|
} else {
|
706 |
|
|
if (pTcb->TCS_DrvFlags & TCF_DRV_255_63) {
|
707 |
|
|
info_array[0] = 255;
|
708 |
|
|
info_array[1] = 63;
|
709 |
|
|
info_array[2] = disk->capacity / 255 / 63;
|
710 |
|
|
} else {
|
711 |
|
|
info_array[0] = 64;
|
712 |
|
|
info_array[1] = 32;
|
713 |
|
|
info_array[2] = disk->capacity >> 11;
|
714 |
|
|
}
|
715 |
|
|
}
|
716 |
|
|
return 0;
|
717 |
|
|
}
|
718 |
|
|
|
719 |
|
|
|
720 |
|
|
static void subIntr(ORC_HCS * pHCB, int irqno)
|
721 |
|
|
{
|
722 |
|
|
unsigned long flags;
|
723 |
|
|
|
724 |
|
|
spin_lock_irqsave(&io_request_lock, flags);
|
725 |
|
|
|
726 |
|
|
if (pHCB->HCS_Intr != irqno) {
|
727 |
|
|
spin_unlock_irqrestore(&io_request_lock, flags);
|
728 |
|
|
return;
|
729 |
|
|
}
|
730 |
|
|
orc_interrupt(pHCB);
|
731 |
|
|
|
732 |
|
|
spin_unlock_irqrestore(&io_request_lock, flags);
|
733 |
|
|
}
|
734 |
|
|
|
735 |
|
|
/*
|
736 |
|
|
* Interrupts handler (main routine of the driver)
|
737 |
|
|
*/
|
738 |
|
|
static void inia100_intr0(int irqno, void *dev_id, struct pt_regs *regs)
|
739 |
|
|
{
|
740 |
|
|
subIntr(&orc_hcs[0], irqno);
|
741 |
|
|
}
|
742 |
|
|
|
743 |
|
|
static void inia100_intr1(int irqno, void *dev_id, struct pt_regs *regs)
|
744 |
|
|
{
|
745 |
|
|
subIntr(&orc_hcs[1], irqno);
|
746 |
|
|
}
|
747 |
|
|
|
748 |
|
|
static void inia100_intr2(int irqno, void *dev_id, struct pt_regs *regs)
|
749 |
|
|
{
|
750 |
|
|
subIntr(&orc_hcs[2], irqno);
|
751 |
|
|
}
|
752 |
|
|
|
753 |
|
|
static void inia100_intr3(int irqno, void *dev_id, struct pt_regs *regs)
|
754 |
|
|
{
|
755 |
|
|
subIntr(&orc_hcs[3], irqno);
|
756 |
|
|
}
|
757 |
|
|
|
758 |
|
|
static void inia100_intr4(int irqno, void *dev_id, struct pt_regs *regs)
|
759 |
|
|
{
|
760 |
|
|
subIntr(&orc_hcs[4], irqno);
|
761 |
|
|
}
|
762 |
|
|
|
763 |
|
|
static void inia100_intr5(int irqno, void *dev_id, struct pt_regs *regs)
|
764 |
|
|
{
|
765 |
|
|
subIntr(&orc_hcs[5], irqno);
|
766 |
|
|
}
|
767 |
|
|
|
768 |
|
|
static void inia100_intr6(int irqno, void *dev_id, struct pt_regs *regs)
|
769 |
|
|
{
|
770 |
|
|
subIntr(&orc_hcs[6], irqno);
|
771 |
|
|
}
|
772 |
|
|
|
773 |
|
|
static void inia100_intr7(int irqno, void *dev_id, struct pt_regs *regs)
|
774 |
|
|
{
|
775 |
|
|
subIntr(&orc_hcs[7], irqno);
|
776 |
|
|
}
|
777 |
|
|
|
778 |
|
|
/*
|
779 |
|
|
* Dump the current driver status and panic...
|
780 |
|
|
*/
|
781 |
|
|
static void inia100_panic(char *msg)
|
782 |
|
|
{
|
783 |
|
|
printk("\ninia100_panic: %s\n", msg);
|
784 |
|
|
panic("inia100 panic");
|
785 |
|
|
}
|
786 |
|
|
|
787 |
|
|
/*
|
788 |
|
|
* Release ressources
|
789 |
|
|
*/
|
790 |
|
|
int inia100_release(struct Scsi_Host *hreg)
|
791 |
|
|
{
|
792 |
|
|
free_irq(hreg->irq, hreg);
|
793 |
|
|
release_region(hreg->io_port, 256);
|
794 |
|
|
return 0;
|
795 |
|
|
}
|
796 |
|
|
|
797 |
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
798 |
|
|
/*#include "inia100scsi.c" */
|