patch-2.2.3 linux/drivers/scsi/inia100.c
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- Lines: 953
- Date:
Wed Feb 24 16:27:54 1999
- Orig file:
v2.2.2/linux/drivers/scsi/inia100.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.2.2/linux/drivers/scsi/inia100.c linux/drivers/scsi/inia100.c
@@ -0,0 +1,952 @@
+/**************************************************************************
+ * Initio A100 device driver for Linux.
+ *
+ * Copyright (c) 1994-1998 Initio Corporation
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification, immediately at the beginning of the file.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Where this Software is combined with software released under the terms of
+ * the GNU Public License ("GPL") and the terms of the GPL would require the
+ * combined work to also be released under the terms of the GPL, the terms
+ * and conditions of this License will apply in addition to those of the
+ * GPL with the exception of any terms or conditions of this License that
+ * conflict with, or are expressly prohibited by, the GPL.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ **************************************************************************
+ *
+ * module: inia100.c
+ * DESCRIPTION:
+ * This is the Linux low-level SCSI driver for Initio INIA100 SCSI host
+ * adapters
+ * 09/24/98 hl - v1.02 initial production release.
+ * 12/19/98 bv - v1.02a Use spinlocks for 2.1.95 and up.
+ **************************************************************************/
+
+#define CVT_LINUX_VERSION(V,P,S) (V * 65536 + P * 256 + S)
+
+#ifndef LINUX_VERSION_CODE
+#include <linux/version.h>
+#endif
+
+#ifdef MODULE
+#include <linux/module.h>
+#endif
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+#include <stdarg.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#if LINUX_VERSION_CODE <= CVT_LINUX_VERSION(2,1,92)
+#include <linux/bios32.h>
+#endif
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,23)
+#include <linux/init.h>
+#endif
+#include <linux/blk.h>
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+#include <asm/spinlock.h>
+#endif
+#include "sd.h"
+#include "scsi.h"
+#include "hosts.h"
+#include "inia100.h"
+#include <linux/stat.h>
+#include <linux/malloc.h>
+
+
+#else
+
+#include <linux/kernel.h>
+#include <linux/head.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include "../block/blk.h"
+#include "scsi.h"
+#include "sd.h"
+#include "hosts.h"
+#include <linux/malloc.h>
+#include "inia100.h"
+#endif
+
+#ifdef MODULE
+Scsi_Host_Template driver_template = INIA100;
+#include "scsi_module.c"
+#endif
+
+#define ORC_RDWORD(x,y) (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) ))
+
+char *inia100_Copyright = "Copyright (C) 1998-99";
+char *inia100_InitioName = "by Initio Corporation";
+char *inia100_ProductName = "INI-A100U2W";
+char *inia100_Version = "v1.02a";
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+struct proc_dir_entry proc_scsi_inia100 =
+{
+ PROC_SCSI_INIA100, 7, "INIA100",
+ S_IFDIR | S_IRUGO | S_IXUGO, 2,
+ 0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL
+};
+#endif
+
+/* set by inia100_setup according to the command line */
+static int setup_called = 0;
+static int orc_num_ch = MAX_SUPPORTED_ADAPTERS; /* Maximum 4 adapters */
+
+/* ---- INTERNAL VARIABLES ---- */
+#define NUMBER(arr) (sizeof(arr) / sizeof(arr[0]))
+static char *setup_str = (char *) NULL;
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr0(int irq, void *dev_id, struct pt_regs *);
+static void inia100_intr1(int irq, void *dev_id, struct pt_regs *);
+static void inia100_intr2(int irq, void *dev_id, struct pt_regs *);
+static void inia100_intr3(int irq, void *dev_id, struct pt_regs *);
+static void inia100_intr4(int irq, void *dev_id, struct pt_regs *);
+static void inia100_intr5(int irq, void *dev_id, struct pt_regs *);
+static void inia100_intr6(int irq, void *dev_id, struct pt_regs *);
+static void inia100_intr7(int irq, void *dev_id, struct pt_regs *);
+#else
+static void inia100_intr0(int irq, struct pt_regs *);
+static void inia100_intr1(int irq, struct pt_regs *);
+static void inia100_intr2(int irq, struct pt_regs *);
+static void inia100_intr3(int irq, struct pt_regs *);
+static void inia100_intr4(int irq, struct pt_regs *);
+static void inia100_intr5(int irq, struct pt_regs *);
+static void inia100_intr6(int irq, struct pt_regs *);
+static void inia100_intr7(int irq, struct pt_regs *);
+#endif
+
+static void inia100_panic(char *msg);
+void inia100SCBPost(BYTE * pHcb, BYTE * pScb);
+
+/* ---- EXTERNAL VARIABLES ---- */
+extern int Addinia100_into_Adapter_table(WORD, WORD, BYTE, BYTE, BYTE);
+extern void init_inia100Adapter_table(void);
+extern ORC_SCB *orc_alloc_scb(ORC_HCS * hcsp);
+extern void orc_exec_scb(ORC_HCS * hcsp, ORC_SCB * scbp);
+extern void orc_release_scb(ORC_HCS * hcsp, ORC_SCB * scbp);
+extern void orc_interrupt(ORC_HCS * hcsp);
+extern int orc_device_reset(ORC_HCS * pHCB, ULONG SCpnt, unsigned int target, unsigned int ResetFlags);
+extern int orc_reset_scsi_bus(ORC_HCS * pHCB);
+extern int abort_SCB(ORC_HCS * hcsp, ORC_SCB * pScb);
+extern int orc_abort_srb(ORC_HCS * hcsp, ULONG SCpnt);
+extern void get_orcPCIConfig(ORC_HCS * pCurHcb, int ch_idx);
+extern int init_orchid(ORC_HCS * hcsp);
+
+extern int orc_num_scb;
+extern ORC_HCS orc_hcs[];
+
+/*****************************************************************************
+ Function name : inia100AppendSRBToQueue
+ Description : This function will push current request into save list
+ Input : pSRB - Pointer to SCSI request block.
+ pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : None.
+*****************************************************************************/
+static void inia100AppendSRBToQueue(ORC_HCS * pHCB, Scsi_Cmnd * pSRB)
+{
+ ULONG flags;
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ spin_lock_irqsave(&(pHCB->pSRB_lock), flags);
+#else
+ save_flags(flags);
+ cli();
+#endif
+
+ pSRB->next = NULL; /* Pointer to next */
+ if (pHCB->pSRB_head == NULL)
+ pHCB->pSRB_head = pSRB;
+ else
+ pHCB->pSRB_tail->next = pSRB; /* Pointer to next */
+ pHCB->pSRB_tail = pSRB;
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags);
+#else
+ restore_flags(flags);
+#endif
+ return;
+}
+
+/*****************************************************************************
+ Function name : inia100PopSRBFromQueue
+ Description : This function will pop current request from save list
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+static Scsi_Cmnd *inia100PopSRBFromQueue(ORC_HCS * pHCB)
+{
+ Scsi_Cmnd *pSRB;
+ ULONG flags;
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ spin_lock_irqsave(&(pHCB->pSRB_lock), flags);
+#else
+ save_flags(flags);
+ cli();
+#endif
+
+ if ((pSRB = (Scsi_Cmnd *) pHCB->pSRB_head) != NULL) {
+ pHCB->pSRB_head = pHCB->pSRB_head->next;
+ pSRB->next = NULL;
+ }
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags);
+#else
+ restore_flags(flags);
+#endif
+ return (pSRB);
+}
+
+/*****************************************************************************
+ Function name : inia100_setup
+ Description :
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+void inia100_setup(char *str, int *ints)
+{
+ if (setup_called)
+ inia100_panic("inia100: inia100_setup called twice.\n");
+
+ setup_called = ints[0];
+ setup_str = str;
+}
+
+/*****************************************************************************
+ Function name : orc_ReturnNumberOfAdapters
+ Description : This function will scan PCI bus to get all Orchid card
+ Input : None.
+ Output : None.
+ Return : SUCCESSFUL - Successful scan
+ ohterwise - No drives founded
+*****************************************************************************/
+int orc_ReturnNumberOfAdapters(void)
+{
+ unsigned int i, iAdapters;
+
+ iAdapters = 0;
+ /*
+ * PCI-bus probe.
+ */
+ if (pcibios_present()) {
+ struct {
+ unsigned short vendor_id;
+ unsigned short device_id;
+ } const inia100_pci_devices[] =
+ {
+ {ORC_VENDOR_ID, I920_DEVICE_ID},
+ {ORC_VENDOR_ID, ORC_DEVICE_ID}
+ };
+
+ unsigned int dRegValue;
+ unsigned short command;
+ WORD wBIOS, wBASE;
+ BYTE bPCIBusNum, bInterrupt, bPCIDeviceNum;
+
+#ifdef MMAPIO
+ unsigned long page_offset, base;
+#endif
+
+#if LINUX_VERSION_CODE > CVT_LINUX_VERSION(2,1,92)
+ struct pci_dev *pdev = NULL;
+#else
+ int index;
+ unsigned char pci_bus, pci_devfn;
+#endif
+
+ bPCIBusNum = 0;
+ bPCIDeviceNum = 0;
+ init_inia100Adapter_table();
+ for (i = 0; i < NUMBER(inia100_pci_devices); i++) {
+#if LINUX_VERSION_CODE > CVT_LINUX_VERSION(2,1,92)
+ pdev = NULL;
+ while ((pdev = pci_find_device(inia100_pci_devices[i].vendor_id,
+ inia100_pci_devices[i].device_id,
+ pdev)))
+#else
+ index = 0;
+ while (!(pcibios_find_device(inia100_pci_devices[i].vendor_id,
+ inia100_pci_devices[i].device_id,
+ index++, &pci_bus, &pci_devfn)))
+#endif
+ {
+ if (iAdapters >= MAX_SUPPORTED_ADAPTERS)
+ break; /* Never greater than maximum */
+
+ if (i == 0) {
+ /*
+ printk("inia100: The RAID controller is not supported by\n");
+ printk("inia100: this driver, we are ignoring it.\n");
+ */
+ } else {
+ /*
+ * Read sundry information from PCI BIOS.
+ */
+#if LINUX_VERSION_CODE > CVT_LINUX_VERSION(2,1,92)
+ bPCIBusNum = pdev->bus->number;
+ bPCIDeviceNum = pdev->devfn;
+ dRegValue = pdev->base_address[0];
+ if (dRegValue == -1) { /* Check return code */
+ printk("\n\rinia100: orchid read configuration error.\n");
+ return (0); /* Read configuration space error */
+ }
+ /* <02> read from base address + 0x50 offset to get the wBIOS balue. */
+ wBASE = (WORD) dRegValue;
+
+ /* Now read the interrupt line */
+ dRegValue = pdev->irq;
+ bInterrupt = dRegValue & 0xFF; /* Assign interrupt line */
+ pci_read_config_word(pdev, PCI_COMMAND, &command);
+ pci_write_config_word(pdev, PCI_COMMAND,
+ command | PCI_COMMAND_MASTER | PCI_COMMAND_IO);
+
+#else
+ bPCIBusNum = pci_bus;
+ bPCIDeviceNum = pci_devfn;
+ pcibios_read_config_dword(pci_bus, pci_devfn, PCI_BASE_ADDRESS_0,
+ &dRegValue);
+ if (dRegValue == -1) { /* Check return code */
+ printk("\n\rinia100: Orchid read configuration error.\n");
+ return (0); /* Read configuration space error */
+ }
+ /* <02> read from base address + 0x50 offset to get the wBIOS balue. */
+ wBASE = (WORD) dRegValue;
+
+ /* Now read the interrupt line */
+ pcibios_read_config_dword(pci_bus, pci_devfn, PCI_INTERRUPT_LINE,
+ &dRegValue);
+ bInterrupt = dRegValue & 0xFF; /* Assign interrupt line */
+ pcibios_read_config_word(pci_bus, pci_devfn, PCI_COMMAND, &command);
+ pcibios_write_config_word(pci_bus, pci_devfn, PCI_COMMAND,
+ command | PCI_COMMAND_MASTER | PCI_COMMAND_IO);
+#endif
+ wBASE &= PCI_BASE_ADDRESS_IO_MASK;
+ wBIOS = ORC_RDWORD(wBASE, 0x50);
+
+#ifdef MMAPIO
+ base = wBASE & PAGE_MASK;
+ page_offset = wBASE - base;
+
+ /*
+ * replace the next line with this one if you are using 2.1.x:
+ * temp_p->maddr = ioremap(base, page_offset + 256);
+ */
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,0)
+ wBASE = ioremap(base, page_offset + 256);
+#else
+ wBASE = (WORD) vremap(base, page_offset + 256);
+#endif
+ if (wBASE) {
+ wBASE += page_offset;
+ }
+#endif
+
+ if (Addinia100_into_Adapter_table(wBIOS, wBASE, bInterrupt, bPCIBusNum,
+ bPCIDeviceNum) == SUCCESSFUL)
+ iAdapters++;
+ }
+ } /* while(pdev=....) */
+ } /* for PCI_DEVICES */
+ } /* PCI BIOS present */
+ return (iAdapters);
+}
+
+/*****************************************************************************
+ Function name : inia100_detect
+ Description :
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+int inia100_detect(Scsi_Host_Template * tpnt)
+{
+ ORC_HCS *pHCB;
+ struct Scsi_Host *hreg;
+ U32 sz;
+ U32 i; /* 01/14/98 */
+ int ok = 0, iAdapters;
+ ULONG dBiosAdr;
+ BYTE *pbBiosAdr;
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+ tpnt->proc_dir = &proc_scsi_inia100;
+#endif
+ if (setup_called) {
+ /* Setup by inia100_setup */
+ printk("inia100: processing commandline: ");
+ }
+ /* Get total number of adapters in the motherboard */
+ iAdapters = orc_ReturnNumberOfAdapters();
+
+ /* printk("inia100: Total Initio Adapters = %d\n", iAdapters); */
+ if (iAdapters == 0) /* If no orc founded, return */
+ return (0);
+
+ orc_num_ch = (iAdapters > orc_num_ch) ? orc_num_ch : iAdapters;
+ orc_num_scb = ORC_MAXQUEUE;
+
+ /* clear the memory needed for HCS */
+ i = orc_num_ch * sizeof(ORC_HCS);
+ memset((unsigned char *) &orc_hcs[0], 0, i); /* Initialize orc_hcs 0 */
+
+#if 0
+ printk("orc_num_scb= %x orc_num_ch= %x hcsize= %x scbsize= %x escbsize= %x\n",
+ orc_num_scb, orc_num_ch, sizeof(ORC_HCS), sizeof(ORC_SCB), sizeof(ESCB));
+#endif
+
+ for (i = 0, pHCB = &orc_hcs[0]; /* Get pointer for control block */
+ i < orc_num_ch;
+ i++, pHCB++) {
+
+ pHCB->pSRB_head = NULL; /* Initial SRB save queue */
+ pHCB->pSRB_tail = NULL; /* Initial SRB save queue */
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ pHCB->pSRB_lock = SPIN_LOCK_UNLOCKED; /* SRB save queue lock */
+#endif
+ /* Get total memory needed for SCB */
+ sz = orc_num_scb * sizeof(ORC_SCB);
+ if ((pHCB->HCS_virScbArray = (PVOID) kmalloc(sz, GFP_ATOMIC | GFP_DMA)) == NULL) {
+ printk("inia100: SCB memory allocation error\n");
+ return (0);
+ }
+ memset((unsigned char *) pHCB->HCS_virScbArray, 0, sz);
+ pHCB->HCS_physScbArray = (U32) VIRT_TO_BUS(pHCB->HCS_virScbArray);
+
+ /* Get total memory needed for ESCB */
+ sz = orc_num_scb * sizeof(ESCB);
+ if ((pHCB->HCS_virEscbArray = (PVOID) kmalloc(sz, GFP_ATOMIC | GFP_DMA)) == NULL) {
+ printk("inia100: ESCB memory allocation error\n");
+ return (0);
+ }
+ memset((unsigned char *) pHCB->HCS_virEscbArray, 0, sz);
+ pHCB->HCS_physEscbArray = (U32) VIRT_TO_BUS(pHCB->HCS_virEscbArray);
+
+ request_region(pHCB->HCS_Base, 0x100, "inia100"); /* Register */
+ get_orcPCIConfig(pHCB, i);
+
+ dBiosAdr = pHCB->HCS_BIOS;
+ dBiosAdr = (dBiosAdr << 4);
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+ pbBiosAdr = phys_to_virt(dBiosAdr);
+#endif
+
+ if (init_orchid(pHCB)) { /* Initial orchid chip */
+ printk("inia100: initial orchid fail!!\n");
+ return (0);
+ }
+ hreg = scsi_register(tpnt, sizeof(ORC_HCS));
+ if (hreg == NULL) {
+ printk("Invalid scsi_register pointer.\n");
+ }
+ hreg->io_port = pHCB->HCS_Base;
+ hreg->n_io_port = 0xff;
+ hreg->can_queue = orc_num_scb; /* 03/05/98 */
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+ hreg->unique_id = pHCB->HCS_Base;
+ hreg->max_id = pHCB->HCS_MaxTar;
+#endif
+
+ hreg->max_lun = 32; /* 10/21/97 */
+/*
+ hreg->max_lun = 8;
+ hreg->max_channel = 1;
+ */
+ hreg->irq = pHCB->HCS_Intr;
+ hreg->this_id = pHCB->HCS_SCSI_ID; /* Assign HCS index */
+ hreg->base = (UCHAR *) pHCB;
+
+#if 1
+ hreg->sg_tablesize = TOTAL_SG_ENTRY; /* Maximun support is 32 */
+#else
+ hreg->sg_tablesize = SG_NONE; /* No SG */
+#endif
+
+ /* Initial orc chip */
+ switch (i) {
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+ case 0:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr0, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ case 1:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr1, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ case 2:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr2, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ case 3:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr3, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ case 4:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr4, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ case 5:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr5, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ case 6:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr6, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ case 7:
+ ok = request_irq(pHCB->HCS_Intr, inia100_intr7, SA_INTERRUPT | SA_SHIRQ, "inia100", NULL);
+ break;
+ default:
+ inia100_panic("inia100: Too many host adapters\n");
+ break;
+ }
+
+ if (ok < 0) {
+ if (ok == -EINVAL) {
+ printk("inia100: bad IRQ %d.\n", pHCB->HCS_Intr);
+ printk(" Contact author.\n");
+ } else {
+ if (ok == -EBUSY)
+ printk("inia100: IRQ %d already in use. Configure another.\n", pHCB->HCS_Intr);
+ else {
+ printk("\ninia100: Unexpected error code on requesting IRQ %d.\n",
+ pHCB->HCS_Intr);
+ printk(" Contact author.\n");
+ }
+ }
+ inia100_panic("inia100: driver needs an IRQ.\n");
+ }
+#endif
+ }
+
+ tpnt->this_id = -1;
+ tpnt->can_queue = 1;
+ return 1;
+}
+
+/*****************************************************************************
+ Function name : inia100BuildSCB
+ Description :
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+static void inia100BuildSCB(ORC_HCS * pHCB, ORC_SCB * pSCB, Scsi_Cmnd * SCpnt)
+{ /* Create corresponding SCB */
+ struct scatterlist *pSrbSG;
+ ORC_SG *pSG; /* Pointer to SG list */
+ int i;
+ U32 TotalLen;
+ ESCB *pEScb;
+
+ pEScb = pSCB->SCB_EScb;
+ pEScb->SCB_Srb = SCpnt;
+ pSG = NULL;
+
+ pSCB->SCB_Opcode = ORC_EXECSCSI;
+ pSCB->SCB_Flags = SCF_NO_DCHK; /* Clear done bit */
+ pSCB->SCB_Target = SCpnt->target;
+ pSCB->SCB_Lun = SCpnt->lun;
+ pSCB->SCB_Reserved0 = 0;
+ pSCB->SCB_Reserved1 = 0;
+ pSCB->SCB_SGLen = 0;
+
+ if ((pSCB->SCB_XferLen = (U32) SCpnt->request_bufflen)) {
+ pSG = (ORC_SG *) & pEScb->ESCB_SGList[0];
+ if (SCpnt->use_sg) {
+ TotalLen = 0;
+ pSCB->SCB_SGLen = (U32) (SCpnt->use_sg * 8);
+ pSrbSG = (struct scatterlist *) SCpnt->request_buffer;
+ for (i = 0; i < SCpnt->use_sg; i++, pSG++, pSrbSG++) {
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+ pSG->SG_Ptr = (U32) (VIRT_TO_BUS(pSrbSG->address));
+#else
+ pSG->SG_Ptr = (U32) pSrbSG->address;
+#endif
+ pSG->SG_Len = (U32) pSrbSG->length;
+ TotalLen += (U32) pSrbSG->length;
+ }
+ } else { /* Non SG */
+ pSCB->SCB_SGLen = 0x8;
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+ pSG->SG_Ptr = (U32) (VIRT_TO_BUS(SCpnt->request_buffer));
+#else
+ pSG->SG_PTR = (U32) SCpnt->request_buffer;
+#endif
+ pSG->SG_Len = (U32) SCpnt->request_bufflen;
+ }
+ }
+ pSCB->SCB_SGPAddr = (U32) pSCB->SCB_SensePAddr;
+ pSCB->SCB_HaStat = 0;
+ pSCB->SCB_TaStat = 0;
+ pSCB->SCB_Link = 0xFF;
+ pSCB->SCB_SenseLen = SENSE_SIZE;
+ pSCB->SCB_CDBLen = SCpnt->cmd_len;
+ if (pSCB->SCB_CDBLen >= IMAX_CDB) {
+ printk("max cdb length= %x\b", SCpnt->cmd_len);
+ pSCB->SCB_CDBLen = IMAX_CDB;
+ }
+ pSCB->SCB_Ident = SCpnt->lun | DISC_ALLOW;
+ if (SCpnt->device->tagged_supported) { /* Tag Support */
+ pSCB->SCB_TagMsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */
+ } else {
+ pSCB->SCB_TagMsg = 0; /* No tag support */
+ }
+ memcpy(&pSCB->SCB_CDB[0], &SCpnt->cmnd, pSCB->SCB_CDBLen);
+ return;
+}
+
+/*****************************************************************************
+ Function name : inia100_queue
+ Description : Queue a command and setup interrupts for a free bus.
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+int inia100_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
+{
+ register ORC_SCB *pSCB;
+ ORC_HCS *pHCB; /* Point to Host adapter control block */
+
+ if (SCpnt->lun > 16) {
+ SCpnt->result = (DID_TIME_OUT << 16);
+ done(SCpnt); /* Notify system DONE */
+ return (0);
+ }
+ pHCB = (ORC_HCS *) SCpnt->host->base;
+ SCpnt->scsi_done = done;
+ /* Get free SCSI control block */
+ if ((pSCB = orc_alloc_scb(pHCB)) == NULL) {
+ inia100AppendSRBToQueue(pHCB, SCpnt); /* Buffer this request */
+ /* printk("inia100_entry: can't allocate SCB\n"); */
+ return (0);
+ }
+ inia100BuildSCB(pHCB, pSCB, SCpnt);
+ orc_exec_scb(pHCB, pSCB); /* Start execute SCB */
+
+ return (0);
+}
+
+/*****************************************************************************
+ Function name : inia100_command
+ Description : We only support command in interrupt-driven fashion
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+int inia100_command(Scsi_Cmnd * SCpnt)
+{
+ printk("inia100: interrupt driven driver; use inia100_queue()\n");
+ return -1;
+}
+
+/*****************************************************************************
+ Function name : inia100_abort
+ Description : Abort a queued command.
+ (commands that are on the bus can't be aborted easily)
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+int inia100_abort(Scsi_Cmnd * SCpnt)
+{
+ ORC_HCS *hcsp;
+
+ hcsp = (ORC_HCS *) SCpnt->host->base;
+ return orc_abort_srb(hcsp, (ULONG) SCpnt);
+}
+
+/*****************************************************************************
+ Function name : inia100_reset
+ Description : Reset registers, reset a hanging bus and
+ kill active and disconnected commands for target w/o soft reset
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+int inia100_reset(Scsi_Cmnd * SCpnt, unsigned int reset_flags)
+{ /* I need Host Control Block Information */
+ ORC_HCS *pHCB;
+ pHCB = (ORC_HCS *) SCpnt->host->base;
+
+ if (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET))
+ return orc_reset_scsi_bus(pHCB);
+ else
+ return orc_device_reset(pHCB, (ULONG) SCpnt, SCpnt->target, reset_flags);
+
+}
+
+/*****************************************************************************
+ Function name : inia100SCBPost
+ Description : This is callback routine be called when orc finish one
+ SCSI command.
+ Input : pHCB - Pointer to host adapter control block.
+ pSCB - Pointer to SCSI control block.
+ Output : None.
+ Return : None.
+*****************************************************************************/
+void inia100SCBPost(BYTE * pHcb, BYTE * pScb)
+{
+ Scsi_Cmnd *pSRB; /* Pointer to SCSI request block */
+ ORC_HCS *pHCB;
+ ORC_SCB *pSCB;
+ ESCB *pEScb;
+
+ pHCB = (ORC_HCS *) pHcb;
+ pSCB = (ORC_SCB *) pScb;
+ pEScb = pSCB->SCB_EScb;
+ if ((pSRB = (Scsi_Cmnd *) pEScb->SCB_Srb) == 0) {
+ printk("inia100SCBPost: SRB pointer is empty\n");
+ orc_release_scb(pHCB, pSCB); /* Release SCB for current channel */
+ return;
+ }
+ pEScb->SCB_Srb = NULL;
+
+ switch (pSCB->SCB_HaStat) {
+ case 0x0:
+ case 0xa: /* Linked command complete without error and linked normally */
+ case 0xb: /* Linked command complete without error interrupt generated */
+ pSCB->SCB_HaStat = 0;
+ break;
+
+ case 0x11: /* Selection time out-The initiator selection or target
+ reselection was not complete within the SCSI Time out period */
+ pSCB->SCB_HaStat = DID_TIME_OUT;
+ break;
+
+ case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus
+ phase sequence was requested by the target. The host adapter
+ will generate a SCSI Reset Condition, notifying the host with
+ a SCRD interrupt */
+ pSCB->SCB_HaStat = DID_RESET;
+ break;
+
+ case 0x1a: /* SCB Aborted. 07/21/98 */
+ pSCB->SCB_HaStat = DID_ABORT;
+ break;
+
+ case 0x12: /* Data overrun/underrun-The target attempted to transfer more data
+ than was allocated by the Data Length field or the sum of the
+ Scatter / Gather Data Length fields. */
+ case 0x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */
+ case 0x16: /* Invalid CCB Operation Code-The first byte of the CCB was invalid. */
+
+ default:
+ printk("inia100: %x %x\n", pSCB->SCB_HaStat, pSCB->SCB_TaStat);
+ pSCB->SCB_HaStat = DID_ERROR; /* Couldn't find any better */
+ break;
+ }
+
+ if (pSCB->SCB_TaStat == 2) { /* Check condition */
+ memcpy((unsigned char *) &pSRB->sense_buffer[0],
+ (unsigned char *) &pEScb->ESCB_SGList[0], SENSE_SIZE);
+ }
+ pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16);
+ pSRB->scsi_done(pSRB); /* Notify system DONE */
+
+ /* Find the next pending SRB */
+ if ((pSRB = inia100PopSRBFromQueue(pHCB)) != NULL) { /* Assume resend will success */
+ /* Reuse old SCB */
+ inia100BuildSCB(pHCB, pSCB, pSRB); /* Create corresponding SCB */
+ orc_exec_scb(pHCB, pSCB); /* Start execute SCB */
+ } else { /* No Pending SRB */
+ orc_release_scb(pHCB, pSCB); /* Release SCB for current channel */
+ }
+ return;
+}
+
+/*****************************************************************************
+ Function name : inia100_biosparam
+ Description : Return the "logical geometry"
+ Input : pHCB - Pointer to host adapter structure
+ Output : None.
+ Return : pSRB - Pointer to SCSI request block.
+*****************************************************************************/
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+int inia100_biosparam(Scsi_Disk * disk, kdev_t dev, int *info_array)
+#else
+int inia100_biosparam(Scsi_Disk * disk, int dev, int *info_array)
+#endif
+{
+ ORC_HCS *pHcb; /* Point to Host adapter control block */
+ ORC_TCS *pTcb;
+
+ pHcb = (ORC_HCS *) disk->device->host->base;
+ pTcb = &pHcb->HCS_Tcs[disk->device->id];
+
+ if (pTcb->TCS_DrvHead) {
+ info_array[0] = pTcb->TCS_DrvHead;
+ info_array[1] = pTcb->TCS_DrvSector;
+ info_array[2] = disk->capacity / pTcb->TCS_DrvHead / pTcb->TCS_DrvSector;
+ } else {
+ if (pTcb->TCS_DrvFlags & TCF_DRV_255_63) {
+ info_array[0] = 255;
+ info_array[1] = 63;
+ info_array[2] = disk->capacity / 255 / 63;
+ } else {
+ info_array[0] = 64;
+ info_array[1] = 32;
+ info_array[2] = disk->capacity >> 11;
+ }
+ }
+ return 0;
+}
+
+
+static void subIntr(ORC_HCS * pHCB, int irqno)
+{
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ unsigned long flags;
+
+ spin_lock_irqsave(&io_request_lock, flags);
+#endif
+
+ if (pHCB->HCS_Intr != irqno) {
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ spin_unlock_irqrestore(&io_request_lock, flags);
+#endif
+ return;
+ }
+ orc_interrupt(pHCB);
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
+ spin_unlock_irqrestore(&io_request_lock, flags);
+#endif
+}
+
+/*
+ * Interrupts handler (main routine of the driver)
+ */
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr0(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr0(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[0], irqno);
+}
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr1(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr1(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[1], irqno);
+}
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr2(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr2(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[2], irqno);
+}
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr3(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr3(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[3], irqno);
+}
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr4(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr4(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[4], irqno);
+}
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr5(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr5(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[5], irqno);
+}
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr6(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr6(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[6], irqno);
+}
+
+#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0)
+static void inia100_intr7(int irqno, void *dev_id, struct pt_regs *regs)
+#else
+static void inia100_intr7(int irqno, struct pt_regs *regs)
+#endif
+{
+ subIntr(&orc_hcs[7], irqno);
+}
+
+/*
+ * Dump the current driver status and panic...
+ */
+static void inia100_panic(char *msg)
+{
+ printk("\ninia100_panic: %s\n", msg);
+ panic("inia100 panic");
+}
+
+/*#include "inia100scsi.c" */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)