diff options
Diffstat (limited to 'drivers/scsi/inia100.c')
-rw-r--r-- | drivers/scsi/inia100.c | 952 |
1 files changed, 952 insertions, 0 deletions
diff --git a/drivers/scsi/inia100.c b/drivers/scsi/inia100.c new file mode 100644 index 000000000..b6f4eb34f --- /dev/null +++ b/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" */ |