ini9100u.c
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- /**************************************************************************
- * Initio 9100 device driver for Linux.
- *
- * Copyright (c) 1994-1998 Initio Corporation
- * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl>
- * 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 General 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.
- *
- *************************************************************************
- *
- * DESCRIPTION:
- *
- * This is the Linux low-level SCSI driver for Initio INI-9X00U/UW SCSI host
- * adapters
- *
- * 08/06/97 hc - v1.01h
- * - Support inic-940 and inic-935
- * 09/26/97 hc - v1.01i
- * - Make correction from J.W. Schultz suggestion
- * 10/13/97 hc - Support reset function
- * 10/21/97 hc - v1.01j
- * - Support 32 LUN (SCSI 3)
- * 01/14/98 hc - v1.01k
- * - Fix memory allocation problem
- * 03/04/98 hc - v1.01l
- * - Fix tape rewind which will hang the system problem
- * - Set can_queue to tul_num_scb
- * 06/25/98 hc - v1.01m
- * - Get it work for kernel version >= 2.1.75
- * - Dynamic assign SCSI bus reset holding time in init_tulip()
- * 07/02/98 hc - v1.01n
- * - Support 0002134A
- * 08/07/98 hc - v1.01o
- * - Change the tul_abort_srb routine to use scsi_done. <01>
- * 09/07/98 hl - v1.02
- * - Change the INI9100U define and proc_dir_entry to
- * reflect the newer Kernel 2.1.118, but the v1.o1o
- * should work with Kernel 2.1.118.
- * 09/20/98 wh - v1.02a
- * - Support Abort command.
- * - Handle reset routine.
- * 09/21/98 hl - v1.03
- * - remove comments.
- * 12/09/98 bv - v1.03a
- * - Removed unused code
- * 12/13/98 bv - v1.03b
- * - Remove cli() locking for kernels >= 2.1.95. This uses
- * spinlocks to serialize access to the pSRB_head and
- * pSRB_tail members of the HCS structure.
- * 09/01/99 bv - v1.03d
- * - Fixed a deadlock problem in SMP.
- * 21/01/99 bv - v1.03e
- * - Add support for the Domex 3192U PCI SCSI
- * This is a slightly modified patch by
- * Brian Macy <bmacy@sunshinecomputing.com>
- * 22/02/99 bv - v1.03f
- * - Didn't detect the INIC-950 in 2.0.x correctly.
- * Now fixed.
- * 05/07/99 bv - v1.03g
- * - Changed the assumption that HZ = 100
- **************************************************************************/
- #define CVT_LINUX_VERSION(V,P,S) (V * 65536 + P * 256 + S)
- #ifndef LINUX_VERSION_CODE
- #include <linux/version.h>
- #endif
- #include <linux/module.h>
- #include <stdarg.h>
- #include <asm/irq.h>
- #include <linux/errno.h>
- #include <linux/delay.h>
- #include <linux/pci.h>
- #include <linux/init.h>
- #include <linux/blk.h>
- #include <linux/spinlock.h>
- #include <linux/stat.h>
- #include <linux/config.h>
- #include <linux/kernel.h>
- #include <linux/string.h>
- #include <linux/ioport.h>
- #include <linux/sched.h>
- #include <linux/proc_fs.h>
- #include <asm/io.h>
- #include "scsi.h"
- #include "sd.h"
- #include "hosts.h"
- #include <linux/slab.h>
- #include "ini9100u.h"
- #ifdef DEBUG_i91u
- unsigned int i91u_debug = DEBUG_DEFAULT;
- #endif
- static Scsi_Host_Template driver_template = INI9100U;
- #include "scsi_module.c"
- char *i91uCopyright = "Copyright (C) 1996-98";
- char *i91uInitioName = "by Initio Corporation";
- char *i91uProductName = "INI-9X00U/UW";
- char *i91uVersion = "v1.03g";
- #define TULSZ(sz) (sizeof(sz) / sizeof(sz[0]))
- #define TUL_RDWORD(x,y) (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) ))
- /* set by i91_setup according to the command line */
- static int setup_called = 0;
- static int tul_num_ch = 4; /* Maximum 4 adapters */
- static int tul_num_scb;
- static int tul_tag_enable = 1;
- static SCB *tul_scb;
- #ifdef DEBUG_i91u
- static int setup_debug = 0;
- #endif
- static char *setup_str = (char *) NULL;
- static void i91u_intr0(int irq, void *dev_id, struct pt_regs *);
- static void i91u_intr1(int irq, void *dev_id, struct pt_regs *);
- static void i91u_intr2(int irq, void *dev_id, struct pt_regs *);
- static void i91u_intr3(int irq, void *dev_id, struct pt_regs *);
- static void i91u_intr4(int irq, void *dev_id, struct pt_regs *);
- static void i91u_intr5(int irq, void *dev_id, struct pt_regs *);
- static void i91u_intr6(int irq, void *dev_id, struct pt_regs *);
- static void i91u_intr7(int irq, void *dev_id, struct pt_regs *);
- static void i91u_panic(char *msg);
- static void i91uSCBPost(BYTE * pHcb, BYTE * pScb);
- /* ---- EXTERNAL FUNCTIONS ---- */
- /* Get total number of adapters */
- extern void init_i91uAdapter_table(void);
- extern int Addi91u_into_Adapter_table(WORD, WORD, BYTE, BYTE, BYTE);
- extern int tul_ReturnNumberOfAdapters(void);
- extern void get_tulipPCIConfig(HCS * pHCB, int iChannel_index);
- extern int init_tulip(HCS * pHCB, SCB * pSCB, int tul_num_scb, BYTE * pbBiosAdr, int reset_time);
- extern SCB *tul_alloc_scb(HCS * pHCB);
- extern int tul_abort_srb(HCS * pHCB, Scsi_Cmnd * pSRB);
- extern void tul_exec_scb(HCS * pHCB, SCB * pSCB);
- extern void tul_release_scb(HCS * pHCB, SCB * pSCB);
- extern void tul_stop_bm(HCS * pHCB);
- extern int tul_reset_scsi(HCS * pCurHcb, int seconds);
- extern int tul_isr(HCS * pHCB);
- extern int tul_reset(HCS * pHCB, Scsi_Cmnd * pSRB, unsigned char target);
- extern int tul_reset_scsi_bus(HCS * pCurHcb);
- extern int tul_device_reset(HCS * pCurHcb, ULONG pSrb, unsigned int target, unsigned int ResetFlags);
- /* ---- EXTERNAL VARIABLES ---- */
- extern HCS tul_hcs[];
- const PCI_ID i91u_pci_devices[] = {
- { INI_VENDOR_ID, I950_DEVICE_ID },
- { INI_VENDOR_ID, I940_DEVICE_ID },
- { INI_VENDOR_ID, I935_DEVICE_ID },
- { INI_VENDOR_ID, I920_DEVICE_ID },
- { DMX_VENDOR_ID, I920_DEVICE_ID },
- };
- /*
- * queue services:
- */
- /*****************************************************************************
- Function name : i91uAppendSRBToQueue
- 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 i91uAppendSRBToQueue(HCS * pHCB, Scsi_Cmnd * pSRB)
- {
- ULONG flags;
- spin_lock_irqsave(&(pHCB->pSRB_lock), flags);
- 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;
- spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags);
- return;
- }
- /*****************************************************************************
- Function name : i91uPopSRBFromQueue
- 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 *i91uPopSRBFromQueue(HCS * pHCB)
- {
- Scsi_Cmnd *pSRB;
- ULONG flags;
- spin_lock_irqsave(&(pHCB->pSRB_lock), flags);
- if ((pSRB = pHCB->pSRB_head) != NULL) {
- pHCB->pSRB_head = pHCB->pSRB_head->next;
- pSRB->next = NULL;
- }
- spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags);
- return (pSRB);
- }
- /* called from init/main.c */
- void i91u_setup(char *str, int *ints)
- {
- if (setup_called)
- i91u_panic("i91u: i91u_setup called twice.n");
- setup_called = ints[0];
- setup_str = str;
- #ifdef DEBUG_i91u
- setup_debug = ints[0] >= 1 ? ints[1] : DEBUG_DEFAULT;
- #endif
- }
- int tul_NewReturnNumberOfAdapters(void)
- {
- struct pci_dev *pDev = NULL; /* Start from none */
- int iAdapters = 0;
- long dRegValue;
- WORD wBIOS;
- int i = 0;
- init_i91uAdapter_table();
- for (i = 0; i < TULSZ(i91u_pci_devices); i++)
- {
- while ((pDev = pci_find_device(i91u_pci_devices[i].vendor_id, i91u_pci_devices[i].device_id, pDev)) != NULL) {
- if (pci_enable_device(pDev))
- continue;
- pci_read_config_dword(pDev, 0x44, (u32 *) & dRegValue);
- wBIOS = (UWORD) (dRegValue & 0xFF);
- if (((dRegValue & 0xFF00) >> 8) == 0xFF)
- dRegValue = 0;
- wBIOS = (wBIOS << 8) + ((UWORD) ((dRegValue & 0xFF00) >> 8));
- if (Addi91u_into_Adapter_table(wBIOS,
- (pDev->resource[0].start),
- pDev->irq,
- pDev->bus->number,
- (pDev->devfn >> 3)
- ) == 0)
- iAdapters++;
- }
- }
- return (iAdapters);
- }
- int i91u_detect(Scsi_Host_Template * tpnt)
- {
- SCB *pSCB;
- HCS *pHCB;
- struct Scsi_Host *hreg;
- unsigned long i; /* 01/14/98 */
- int ok = 0, iAdapters;
- ULONG dBiosAdr;
- BYTE *pbBiosAdr;
- tpnt->proc_name = "INI9100U";
- if (setup_called) { /* Setup by i91u_setup */
- printk("i91u: processing commandline: ");
- #ifdef DEBUG_i91u
- if (setup_called > 1) {
- printk("ni91u: %sn", setup_str);
- printk("i91u: usage: i91u[=<DEBUG>]n");
- i91u_panic("i91u panics in line %d", __LINE__);
- }
- i91u_debug = setup_debug;
- #endif
- }
- /* Get total number of adapters in the motherboard */
- #ifdef CONFIG_PCI
- iAdapters = tul_NewReturnNumberOfAdapters();
- #else
- iAdapters = tul_ReturnNumberOfAdapters();
- #endif
- if (iAdapters == 0) /* If no tulip founded, return */
- return (0);
- tul_num_ch = (iAdapters > tul_num_ch) ? tul_num_ch : iAdapters;
- /* Update actually channel number */
- if (tul_tag_enable) { /* 1.01i */
- tul_num_scb = MAX_TARGETS * i91u_MAXQUEUE;
- } else {
- tul_num_scb = MAX_TARGETS + 3; /* 1-tape, 1-CD_ROM, 1- extra */
- } /* Update actually SCBs per adapter */
- /* Get total memory needed for HCS */
- i = tul_num_ch * sizeof(HCS);
- memset((unsigned char *) &tul_hcs[0], 0, i); /* Initialize tul_hcs 0 */
- /* Get total memory needed for SCB */
- for (; tul_num_scb >= MAX_TARGETS + 3; tul_num_scb--) {
- i = tul_num_ch * tul_num_scb * sizeof(SCB);
- if ((tul_scb = (SCB *) kmalloc(i, GFP_ATOMIC | GFP_DMA)) != NULL)
- break;
- }
- if (tul_scb == NULL) {
- printk("i91u: SCB memory allocation errorn");
- return (0);
- }
- memset((unsigned char *) tul_scb, 0, i);
- pSCB = tul_scb;
- for (i = 0; i < tul_num_ch * tul_num_scb; i++, pSCB++) {
- pSCB->SCB_SGPAddr = (U32) VIRT_TO_BUS(&pSCB->SCB_SGList[0]);
- }
- for (i = 0, pHCB = &tul_hcs[0]; /* Get pointer for control block */
- i < tul_num_ch;
- i++, pHCB++) {
- pHCB->pSRB_head = NULL; /* Initial SRB save queue */
- pHCB->pSRB_tail = NULL; /* Initial SRB save queue */
- pHCB->pSRB_lock = SPIN_LOCK_UNLOCKED; /* SRB save queue lock */
- get_tulipPCIConfig(pHCB, i);
- dBiosAdr = pHCB->HCS_BIOS;
- dBiosAdr = (dBiosAdr << 4);
- pbBiosAdr = phys_to_virt(dBiosAdr);
- init_tulip(pHCB, tul_scb + (i * tul_num_scb), tul_num_scb, pbBiosAdr, 10);
- request_region(pHCB->HCS_Base, 256, "i91u"); /* Register */
- pHCB->HCS_Index = i; /* 7/29/98 */
- hreg = scsi_register(tpnt, sizeof(HCS));
- if(hreg == NULL)
- {
- release_region(pHCB->HCS_Base, 256);
- return 0;
- }
- hreg->io_port = pHCB->HCS_Base;
- hreg->n_io_port = 0xff;
- hreg->can_queue = tul_num_scb; /* 03/05/98 */
- hreg->unique_id = pHCB->HCS_Base;
- hreg->max_id = pHCB->HCS_MaxTar;
- hreg->max_lun = 32; /* 10/21/97 */
- hreg->irq = pHCB->HCS_Intr;
- hreg->this_id = pHCB->HCS_SCSI_ID; /* Assign HCS index */
- hreg->base = (unsigned long)pHCB;
- hreg->sg_tablesize = TOTAL_SG_ENTRY; /* Maximun support is 32 */
- /* Initial tulip chip */
- switch (i) {
- case 0:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr0, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- case 1:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr1, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- case 2:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr2, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- case 3:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr3, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- case 4:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr4, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- case 5:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr5, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- case 6:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr6, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- case 7:
- ok = request_irq(pHCB->HCS_Intr, i91u_intr7, SA_INTERRUPT | SA_SHIRQ, "i91u", hreg);
- break;
- default:
- i91u_panic("i91u: Too many host adaptersn");
- break;
- }
- if (ok < 0) {
- if (ok == -EINVAL) {
- printk("i91u: bad IRQ %d.n", pHCB->HCS_Intr);
- printk(" Contact author.n");
- } else if (ok == -EBUSY)
- printk("i91u: IRQ %d already in use. Configure another.n",
- pHCB->HCS_Intr);
- else {
- printk("ni91u: Unexpected error code on requesting IRQ %d.n",
- pHCB->HCS_Intr);
- printk(" Contact author.n");
- }
- i91u_panic("i91u: driver needs an IRQ.n");
- }
- }
- tpnt->this_id = -1;
- tpnt->can_queue = 1;
- return 1;
- }
- static void i91uBuildSCB(HCS * pHCB, SCB * pSCB, Scsi_Cmnd * SCpnt)
- { /* Create corresponding SCB */
- struct scatterlist *pSrbSG;
- SG *pSG; /* Pointer to SG list */
- int i;
- long TotalLen;
- pSCB->SCB_Post = i91uSCBPost; /* i91u's callback routine */
- pSCB->SCB_Srb = SCpnt;
- pSCB->SCB_Opcode = ExecSCSI;
- pSCB->SCB_Flags = SCF_POST; /* After SCSI done, call post routine */
- pSCB->SCB_Target = SCpnt->target;
- pSCB->SCB_Lun = SCpnt->lun;
- pSCB->SCB_Ident = SCpnt->lun | DISC_ALLOW;
- pSCB->SCB_Flags |= SCF_SENSE; /* Turn on auto request sense */
- pSCB->SCB_SensePtr = (U32) VIRT_TO_BUS(SCpnt->sense_buffer);
- pSCB->SCB_SenseLen = SENSE_SIZE;
- pSCB->SCB_CDBLen = SCpnt->cmd_len;
- pSCB->SCB_HaStat = 0;
- pSCB->SCB_TaStat = 0;
- memcpy(&pSCB->SCB_CDB[0], &SCpnt->cmnd, SCpnt->cmd_len);
- 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 */
- }
- if (SCpnt->use_sg) {
- pSrbSG = (struct scatterlist *) SCpnt->request_buffer;
- if (SCpnt->use_sg == 1) { /* If only one entry in the list *//* treat it as regular I/O */
- pSCB->SCB_BufPtr = (U32) VIRT_TO_BUS(pSrbSG->address);
- TotalLen = pSrbSG->length;
- pSCB->SCB_SGLen = 0;
- } else { /* Assign SG physical address */
- pSCB->SCB_BufPtr = pSCB->SCB_SGPAddr;
- pSCB->SCB_Flags |= SCF_SG; /* Turn on SG list flag */
- for (i = 0, TotalLen = 0, pSG = &pSCB->SCB_SGList[0]; /* 1.01g */
- i < SCpnt->use_sg;
- i++, pSG++, pSrbSG++) {
- pSG->SG_Ptr = (U32) VIRT_TO_BUS(pSrbSG->address);
- TotalLen += pSG->SG_Len = pSrbSG->length;
- }
- pSCB->SCB_SGLen = i;
- }
- pSCB->SCB_BufLen = (SCpnt->request_bufflen > TotalLen) ?
- TotalLen : SCpnt->request_bufflen;
- } else { /* Non SG */
- pSCB->SCB_BufPtr = (U32) VIRT_TO_BUS(SCpnt->request_buffer);
- pSCB->SCB_BufLen = SCpnt->request_bufflen;
- pSCB->SCB_SGLen = 0;
- }
- return;
- }
- /*
- * Queue a command and setup interrupts for a free bus.
- */
- int i91u_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
- {
- register SCB *pSCB;
- HCS *pHCB; /* Point to Host adapter control block */
- if (SCpnt->lun > 16) { /* 07/22/98 */
- SCpnt->result = (DID_TIME_OUT << 16);
- done(SCpnt); /* Notify system DONE */
- return (0);
- }
- pHCB = (HCS *) SCpnt->host->base;
- SCpnt->scsi_done = done;
- /* Get free SCSI control block */
- if ((pSCB = tul_alloc_scb(pHCB)) == NULL) {
- i91uAppendSRBToQueue(pHCB, SCpnt); /* Buffer this request */
- return (0);
- }
- i91uBuildSCB(pHCB, pSCB, SCpnt);
- tul_exec_scb(pHCB, pSCB); /* Start execute SCB */
- return (0);
- }
- /*
- * We only support command in interrupt-driven fashion
- */
- int i91u_command(Scsi_Cmnd * SCpnt)
- {
- printk("i91u: interrupt driven driver; use i91u_queue()n");
- return -1;
- }
- /*
- * Abort a queued command
- * (commands that are on the bus can't be aborted easily)
- */
- int i91u_abort(Scsi_Cmnd * SCpnt)
- {
- HCS *pHCB;
- pHCB = (HCS *) SCpnt->host->base;
- return tul_abort_srb(pHCB, SCpnt);
- }
- /*
- * Reset registers, reset a hanging bus and
- * kill active and disconnected commands for target w/o soft reset
- */
- int i91u_reset(Scsi_Cmnd * SCpnt, unsigned int reset_flags)
- { /* I need Host Control Block Information */
- HCS *pHCB;
- pHCB = (HCS *) SCpnt->host->base;
- if (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET))
- return tul_reset_scsi_bus(pHCB);
- else
- return tul_device_reset(pHCB, (ULONG) SCpnt, SCpnt->target, reset_flags);
- }
- /*
- * Return the "logical geometry"
- */
- int i91u_biosparam(Scsi_Disk * disk, kdev_t dev, int *info_array)
- {
- HCS *pHcb; /* Point to Host adapter control block */
- TCS *pTcb;
- pHcb = (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;
- }
- }
- #if defined(DEBUG_BIOSPARAM)
- if (i91u_debug & debug_biosparam) {
- printk("bios geometry: head=%d, sec=%d, cyl=%dn",
- info_array[0], info_array[1], info_array[2]);
- printk("WARNING: check, if the bios geometry is correct.n");
- }
- #endif
- return 0;
- }
- /*****************************************************************************
- Function name : i91uSCBPost
- Description : This is callback routine be called when tulip finish one
- SCSI command.
- Input : pHCB - Pointer to host adapter control block.
- pSCB - Pointer to SCSI control block.
- Output : None.
- Return : None.
- *****************************************************************************/
- static void i91uSCBPost(BYTE * pHcb, BYTE * pScb)
- {
- Scsi_Cmnd *pSRB; /* Pointer to SCSI request block */
- HCS *pHCB;
- SCB *pSCB;
- pHCB = (HCS *) pHcb;
- pSCB = (SCB *) pScb;
- if ((pSRB = pSCB->SCB_Srb) == 0) {
- printk("i91uSCBPost: SRB pointer is emptyn");
- tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */
- return;
- }
- 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 SCB Operation Code. */
- default:
- printk("ini9100u: %x %xn", pSCB->SCB_HaStat, pSCB->SCB_TaStat);
- pSCB->SCB_HaStat = DID_ERROR; /* Couldn't find any better */
- break;
- }
- pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16);
- if (pSRB == NULL) {
- printk("pSRB is NULLn");
- }
- pSRB->scsi_done(pSRB); /* Notify system DONE */
- if ((pSRB = i91uPopSRBFromQueue(pHCB)) != NULL)
- /* Find the next pending SRB */
- { /* Assume resend will success */
- /* Reuse old SCB */
- i91uBuildSCB(pHCB, pSCB, pSRB); /* Create corresponding SCB */
- tul_exec_scb(pHCB, pSCB); /* Start execute SCB */
- } else { /* No Pending SRB */
- tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */
- }
- return;
- }
- /*
- * Interrupts handler (main routine of the driver)
- */
- static void i91u_intr0(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[0].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[0]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- static void i91u_intr1(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[1].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[1]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- static void i91u_intr2(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[2].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[2]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- static void i91u_intr3(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[3].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[3]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- static void i91u_intr4(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[4].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[4]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- static void i91u_intr5(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[5].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[5]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- static void i91u_intr6(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[6].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[6]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- static void i91u_intr7(int irqno, void *dev_id, struct pt_regs *regs)
- {
- unsigned long flags;
- if (tul_hcs[7].HCS_Intr != irqno)
- return;
- spin_lock_irqsave(&io_request_lock, flags);
- tul_isr(&tul_hcs[7]);
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- /*
- * Dump the current driver status and panic...
- */
- static void i91u_panic(char *msg)
- {
- printk("ni91u_panic: %sn", msg);
- panic("i91u panic");
- }
- /*
- * Release ressources
- */
- int i91u_release(struct Scsi_Host *hreg)
- {
- free_irq(hreg->irq, hreg);
- release_region(hreg->io_port, 256);
- return 0;
- }
- MODULE_LICENSE("Dual BSD/GPL");