i60uscsi.c
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上传日期:2013-02-24
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- /**************************************************************************
- * 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 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.
- *
- *************************************************************************
- *
- * module: i60uscsi.c
- * DESCRIPTION:
- * This is the Linux low-level SCSI driver for Initio INIA100 SCSI host
- * adapters
- *
- * 07/02/98 hl - v.91n Initial drivers.
- * 09/14/98 hl - v1.01 Support new Kernel.
- * 09/22/98 hl - v1.01a Support reset.
- * 09/24/98 hl - v1.01b Fixed reset.
- * 10/05/98 hl - v1.02 split the source code and release.
- * 12/19/98 bv - v1.02a Use spinlocks for 2.1.95 and up
- * 01/31/99 bv - v1.02b Use mdelay instead of waitForPause
- * 08/08/99 bv - v1.02c Use waitForPause again.
- **************************************************************************/
- #include <linux/version.h>
- #include <linux/sched.h>
- #include <asm/io.h>
- #include "i60uscsi.h"
- #define JIFFIES_TO_MS(t) ((t) * 1000 / HZ)
- #define MS_TO_JIFFIES(j) ((j * HZ) / 1000)
- /* ---- INTERNAL FUNCTIONS ---- */
- static UCHAR waitChipReady(ORC_HCS * hcsp);
- static UCHAR waitFWReady(ORC_HCS * hcsp);
- static UCHAR waitFWReady(ORC_HCS * hcsp);
- static UCHAR waitSCSIRSTdone(ORC_HCS * hcsp);
- static UCHAR waitHDOoff(ORC_HCS * hcsp);
- static UCHAR waitHDIset(ORC_HCS * hcsp, UCHAR * pData);
- static unsigned short get_FW_version(ORC_HCS * hcsp);
- static UCHAR set_NVRAM(ORC_HCS * hcsp, unsigned char address, unsigned char value);
- static UCHAR get_NVRAM(ORC_HCS * hcsp, unsigned char address, unsigned char *pDataIn);
- static int se2_rd_all(ORC_HCS * hcsp);
- static void se2_update_all(ORC_HCS * hcsp); /* setup default pattern */
- static void read_eeprom(ORC_HCS * hcsp);
- static UCHAR load_FW(ORC_HCS * hcsp);
- static void setup_SCBs(ORC_HCS * hcsp);
- static void initAFlag(ORC_HCS * hcsp);
- ORC_SCB *orc_alloc_scb(ORC_HCS * hcsp);
- /* ---- EXTERNAL FUNCTIONS ---- */
- extern void inia100SCBPost(BYTE * pHcb, BYTE * pScb);
- /* ---- INTERNAL VARIABLES ---- */
- ORC_HCS orc_hcs[MAX_SUPPORTED_ADAPTERS];
- static INIA100_ADPT_STRUCT inia100_adpt[MAX_SUPPORTED_ADAPTERS];
- /* set by inia100_setup according to the command line */
- int orc_num_scb;
- NVRAM nvram, *nvramp = &nvram;
- static UCHAR dftNvRam[64] =
- {
- /*----------header -------------*/
- 0x01, /* 0x00: Sub System Vendor ID 0 */
- 0x11, /* 0x01: Sub System Vendor ID 1 */
- 0x60, /* 0x02: Sub System ID 0 */
- 0x10, /* 0x03: Sub System ID 1 */
- 0x00, /* 0x04: SubClass */
- 0x01, /* 0x05: Vendor ID 0 */
- 0x11, /* 0x06: Vendor ID 1 */
- 0x60, /* 0x07: Device ID 0 */
- 0x10, /* 0x08: Device ID 1 */
- 0x00, /* 0x09: Reserved */
- 0x00, /* 0x0A: Reserved */
- 0x01, /* 0x0B: Revision of Data Structure */
- /* -- Host Adapter Structure --- */
- 0x01, /* 0x0C: Number Of SCSI Channel */
- 0x01, /* 0x0D: BIOS Configuration 1 */
- 0x00, /* 0x0E: BIOS Configuration 2 */
- 0x00, /* 0x0F: BIOS Configuration 3 */
- /* --- SCSI Channel 0 Configuration --- */
- 0x07, /* 0x10: H/A ID */
- 0x83, /* 0x11: Channel Configuration */
- 0x20, /* 0x12: MAX TAG per target */
- 0x0A, /* 0x13: SCSI Reset Recovering time */
- 0x00, /* 0x14: Channel Configuration4 */
- 0x00, /* 0x15: Channel Configuration5 */
- /* SCSI Channel 0 Target Configuration */
- /* 0x16-0x25 */
- 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
- 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
- /* --- SCSI Channel 1 Configuration --- */
- 0x07, /* 0x26: H/A ID */
- 0x83, /* 0x27: Channel Configuration */
- 0x20, /* 0x28: MAX TAG per target */
- 0x0A, /* 0x29: SCSI Reset Recovering time */
- 0x00, /* 0x2A: Channel Configuration4 */
- 0x00, /* 0x2B: Channel Configuration5 */
- /* SCSI Channel 1 Target Configuration */
- /* 0x2C-0x3B */
- 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
- 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
- 0x00, /* 0x3C: Reserved */
- 0x00, /* 0x3D: Reserved */
- 0x00, /* 0x3E: Reserved */
- 0x00 /* 0x3F: Checksum */
- };
- /***************************************************************************/
- static void waitForPause(unsigned amount)
- {
- ULONG the_time = jiffies + MS_TO_JIFFIES(amount);
- while (time_before_eq(jiffies, the_time))
- cpu_relax();
- }
- /***************************************************************************/
- UCHAR waitChipReady(ORC_HCS * hcsp)
- {
- int i;
- for (i = 0; i < 10; i++) { /* Wait 1 second for report timeout */
- if (ORC_RD(hcsp->HCS_Base, ORC_HCTRL) & HOSTSTOP) /* Wait HOSTSTOP set */
- return (TRUE);
- waitForPause(100); /* wait 100ms before try again */
- }
- return (FALSE);
- }
- /***************************************************************************/
- UCHAR waitFWReady(ORC_HCS * hcsp)
- {
- int i;
- for (i = 0; i < 10; i++) { /* Wait 1 second for report timeout */
- if (ORC_RD(hcsp->HCS_Base, ORC_HSTUS) & RREADY) /* Wait READY set */
- return (TRUE);
- waitForPause(100); /* wait 100ms before try again */
- }
- return (FALSE);
- }
- /***************************************************************************/
- UCHAR waitSCSIRSTdone(ORC_HCS * hcsp)
- {
- int i;
- for (i = 0; i < 10; i++) { /* Wait 1 second for report timeout */
- if (!(ORC_RD(hcsp->HCS_Base, ORC_HCTRL) & SCSIRST)) /* Wait SCSIRST done */
- return (TRUE);
- waitForPause(100); /* wait 100ms before try again */
- }
- return (FALSE);
- }
- /***************************************************************************/
- UCHAR waitHDOoff(ORC_HCS * hcsp)
- {
- int i;
- for (i = 0; i < 10; i++) { /* Wait 1 second for report timeout */
- if (!(ORC_RD(hcsp->HCS_Base, ORC_HCTRL) & HDO)) /* Wait HDO off */
- return (TRUE);
- waitForPause(100); /* wait 100ms before try again */
- }
- return (FALSE);
- }
- /***************************************************************************/
- UCHAR waitHDIset(ORC_HCS * hcsp, UCHAR * pData)
- {
- int i;
- for (i = 0; i < 10; i++) { /* Wait 1 second for report timeout */
- if ((*pData = ORC_RD(hcsp->HCS_Base, ORC_HSTUS)) & HDI)
- return (TRUE); /* Wait HDI set */
- waitForPause(100); /* wait 100ms before try again */
- }
- return (FALSE);
- }
- /***************************************************************************/
- unsigned short get_FW_version(ORC_HCS * hcsp)
- {
- UCHAR bData;
- union {
- unsigned short sVersion;
- unsigned char cVersion[2];
- } Version;
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, ORC_CMD_VERSION);
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- if (waitHDIset(hcsp, &bData) == FALSE) /* Wait HDI set */
- return (FALSE);
- Version.cVersion[0] = ORC_RD(hcsp->HCS_Base, ORC_HDATA);
- ORC_WR(hcsp->HCS_Base + ORC_HSTUS, bData); /* Clear HDI */
- if (waitHDIset(hcsp, &bData) == FALSE) /* Wait HDI set */
- return (FALSE);
- Version.cVersion[1] = ORC_RD(hcsp->HCS_Base, ORC_HDATA);
- ORC_WR(hcsp->HCS_Base + ORC_HSTUS, bData); /* Clear HDI */
- return (Version.sVersion);
- }
- /***************************************************************************/
- UCHAR set_NVRAM(ORC_HCS * hcsp, unsigned char address, unsigned char value)
- {
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, ORC_CMD_SET_NVM); /* Write command */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, address); /* Write address */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, value); /* Write value */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- return (TRUE);
- }
- /***************************************************************************/
- UCHAR get_NVRAM(ORC_HCS * hcsp, unsigned char address, unsigned char *pDataIn)
- {
- unsigned char bData;
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, ORC_CMD_GET_NVM); /* Write command */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, address); /* Write address */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- if (waitHDIset(hcsp, &bData) == FALSE) /* Wait HDI set */
- return (FALSE);
- *pDataIn = ORC_RD(hcsp->HCS_Base, ORC_HDATA);
- ORC_WR(hcsp->HCS_Base + ORC_HSTUS, bData); /* Clear HDI */
- return (TRUE);
- }
- /***************************************************************************/
- void orc_exec_scb(ORC_HCS * hcsp, ORC_SCB * scbp)
- {
- scbp->SCB_Status = SCB_POST;
- ORC_WR(hcsp->HCS_Base + ORC_PQUEUE, scbp->SCB_ScbIdx);
- return;
- }
- /***********************************************************************
- Read SCSI H/A configuration parameters from serial EEPROM
- ************************************************************************/
- int se2_rd_all(ORC_HCS * hcsp)
- {
- int i;
- UCHAR *np, chksum = 0;
- np = (UCHAR *) nvramp;
- for (i = 0; i < 64; i++, np++) { /* <01> */
- if (get_NVRAM(hcsp, (unsigned char) i, np) == FALSE)
- return -1;
- // *np++ = get_NVRAM(hcsp, (unsigned char ) i);
- }
- /*------ Is ckecksum ok ? ------*/
- np = (UCHAR *) nvramp;
- for (i = 0; i < 63; i++)
- chksum += *np++;
- if (nvramp->CheckSum != (UCHAR) chksum)
- return -1;
- return 1;
- }
- /************************************************************************
- Update SCSI H/A configuration parameters from serial EEPROM
- *************************************************************************/
- void se2_update_all(ORC_HCS * hcsp)
- { /* setup default pattern */
- int i;
- UCHAR *np, *np1, chksum = 0;
- /* Calculate checksum first */
- np = (UCHAR *) dftNvRam;
- for (i = 0; i < 63; i++)
- chksum += *np++;
- *np = chksum;
- np = (UCHAR *) dftNvRam;
- np1 = (UCHAR *) nvramp;
- for (i = 0; i < 64; i++, np++, np1++) {
- if (*np != *np1) {
- set_NVRAM(hcsp, (unsigned char) i, *np);
- }
- }
- return;
- }
- /*************************************************************************
- Function name : read_eeprom
- **************************************************************************/
- void read_eeprom(ORC_HCS * hcsp)
- {
- if (se2_rd_all(hcsp) != 1) {
- se2_update_all(hcsp); /* setup default pattern */
- se2_rd_all(hcsp); /* load again */
- }
- }
- /***************************************************************************/
- UCHAR load_FW(ORC_HCS * hcsp)
- {
- U32 dData;
- USHORT wBIOSAddress;
- USHORT i;
- UCHAR *pData, bData;
- bData = ORC_RD(hcsp->HCS_Base, ORC_GCFG);
- ORC_WR(hcsp->HCS_Base + ORC_GCFG, bData | EEPRG); /* Enable EEPROM programming */
- ORC_WR(hcsp->HCS_Base + ORC_EBIOSADR2, 0x00);
- ORC_WRSHORT(hcsp->HCS_Base + ORC_EBIOSADR0, 0x00);
- if (ORC_RD(hcsp->HCS_Base, ORC_EBIOSDATA) != 0x55) {
- ORC_WR(hcsp->HCS_Base + ORC_GCFG, bData); /* Disable EEPROM programming */
- return (FALSE);
- }
- ORC_WRSHORT(hcsp->HCS_Base + ORC_EBIOSADR0, 0x01);
- if (ORC_RD(hcsp->HCS_Base, ORC_EBIOSDATA) != 0xAA) {
- ORC_WR(hcsp->HCS_Base + ORC_GCFG, bData); /* Disable EEPROM programming */
- return (FALSE);
- }
- ORC_WR(hcsp->HCS_Base + ORC_RISCCTL, PRGMRST | DOWNLOAD); /* Enable SRAM programming */
- pData = (UCHAR *) & dData;
- dData = 0; /* Initial FW address to 0 */
- ORC_WRSHORT(hcsp->HCS_Base + ORC_EBIOSADR0, 0x10);
- *pData = ORC_RD(hcsp->HCS_Base, ORC_EBIOSDATA); /* Read from BIOS */
- ORC_WRSHORT(hcsp->HCS_Base + ORC_EBIOSADR0, 0x11);
- *(pData + 1) = ORC_RD(hcsp->HCS_Base, ORC_EBIOSDATA); /* Read from BIOS */
- ORC_WRSHORT(hcsp->HCS_Base + ORC_EBIOSADR0, 0x12);
- *(pData + 2) = ORC_RD(hcsp->HCS_Base, ORC_EBIOSDATA); /* Read from BIOS */
- ORC_WR(hcsp->HCS_Base + ORC_EBIOSADR2, *(pData + 2));
- ORC_WRLONG(hcsp->HCS_Base + ORC_FWBASEADR, dData); /* Write FW address */
- wBIOSAddress = (USHORT) dData; /* FW code locate at BIOS address + ? */
- for (i = 0, pData = (UCHAR *) & dData; /* Download the code */
- i < 0x1000; /* Firmware code size = 4K */
- i++, wBIOSAddress++) {
- ORC_WRSHORT(hcsp->HCS_Base + ORC_EBIOSADR0, wBIOSAddress);
- *pData++ = ORC_RD(hcsp->HCS_Base, ORC_EBIOSDATA); /* Read from BIOS */
- if ((i % 4) == 3) {
- ORC_WRLONG(hcsp->HCS_Base + ORC_RISCRAM, dData); /* Write every 4 bytes */
- pData = (UCHAR *) & dData;
- }
- }
- ORC_WR(hcsp->HCS_Base + ORC_RISCCTL, PRGMRST | DOWNLOAD); /* Reset program count 0 */
- wBIOSAddress -= 0x1000; /* Reset the BIOS adddress */
- for (i = 0, pData = (UCHAR *) & dData; /* Check the code */
- i < 0x1000; /* Firmware code size = 4K */
- i++, wBIOSAddress++) {
- ORC_WRSHORT(hcsp->HCS_Base + ORC_EBIOSADR0, wBIOSAddress);
- *pData++ = ORC_RD(hcsp->HCS_Base, ORC_EBIOSDATA); /* Read from BIOS */
- if ((i % 4) == 3) {
- if (ORC_RDLONG(hcsp->HCS_Base, ORC_RISCRAM) != dData) {
- ORC_WR(hcsp->HCS_Base + ORC_RISCCTL, PRGMRST); /* Reset program to 0 */
- ORC_WR(hcsp->HCS_Base + ORC_GCFG, bData); /*Disable EEPROM programming */
- return (FALSE);
- }
- pData = (UCHAR *) & dData;
- }
- }
- ORC_WR(hcsp->HCS_Base + ORC_RISCCTL, PRGMRST); /* Reset program to 0 */
- ORC_WR(hcsp->HCS_Base + ORC_GCFG, bData); /* Disable EEPROM programming */
- return (TRUE);
- }
- /***************************************************************************/
- void setup_SCBs(ORC_HCS * hcsp)
- {
- ORC_SCB *pVirScb;
- int i;
- UCHAR j;
- ESCB *pVirEscb;
- PVOID pPhysEscb;
- PVOID tPhysEscb;
- j = 0;
- pVirScb = NULL;
- tPhysEscb = (PVOID) NULL;
- pPhysEscb = (PVOID) NULL;
- /* Setup SCB HCS_Base and SCB Size registers */
- ORC_WR(hcsp->HCS_Base + ORC_SCBSIZE, orc_num_scb); /* Total number of SCBs */
- /* SCB HCS_Base address 0 */
- ORC_WRLONG(hcsp->HCS_Base + ORC_SCBBASE0, hcsp->HCS_physScbArray);
- /* SCB HCS_Base address 1 */
- ORC_WRLONG(hcsp->HCS_Base + ORC_SCBBASE1, hcsp->HCS_physScbArray);
- /* setup scatter list address with one buffer */
- pVirScb = (ORC_SCB *) hcsp->HCS_virScbArray;
- pVirEscb = (ESCB *) hcsp->HCS_virEscbArray;
- for (i = 0; i < orc_num_scb; i++) {
- pPhysEscb = (PVOID) (hcsp->HCS_physEscbArray + (sizeof(ESCB) * i));
- pVirScb->SCB_SGPAddr = (U32) pPhysEscb;
- pVirScb->SCB_SensePAddr = (U32) pPhysEscb;
- pVirScb->SCB_EScb = pVirEscb;
- pVirScb->SCB_ScbIdx = i;
- pVirScb++;
- pVirEscb++;
- }
- return;
- }
- /***************************************************************************/
- static void initAFlag(ORC_HCS * hcsp)
- {
- UCHAR i, j;
- for (i = 0; i < MAX_CHANNELS; i++) {
- for (j = 0; j < 8; j++) {
- hcsp->BitAllocFlag[i][j] = 0xffffffff;
- }
- }
- }
- /***************************************************************************/
- int init_orchid(ORC_HCS * hcsp)
- {
- UBYTE *readBytep;
- USHORT revision;
- UCHAR i;
- initAFlag(hcsp);
- ORC_WR(hcsp->HCS_Base + ORC_GIMSK, 0xFF); /* Disable all interrupt */
- if (ORC_RD(hcsp->HCS_Base, ORC_HSTUS) & RREADY) { /* Orchid is ready */
- revision = get_FW_version(hcsp);
- if (revision == 0xFFFF) {
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, DEVRST); /* Reset Host Adapter */
- if (waitChipReady(hcsp) == FALSE)
- return (-1);
- load_FW(hcsp); /* Download FW */
- setup_SCBs(hcsp); /* Setup SCB HCS_Base and SCB Size registers */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, 0); /* clear HOSTSTOP */
- if (waitFWReady(hcsp) == FALSE)
- return (-1);
- /* Wait for firmware ready */
- } else {
- setup_SCBs(hcsp); /* Setup SCB HCS_Base and SCB Size registers */
- }
- } else { /* Orchid is not Ready */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, DEVRST); /* Reset Host Adapter */
- if (waitChipReady(hcsp) == FALSE)
- return (-1);
- load_FW(hcsp); /* Download FW */
- setup_SCBs(hcsp); /* Setup SCB HCS_Base and SCB Size registers */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO); /* Do Hardware Reset & */
- /* clear HOSTSTOP */
- if (waitFWReady(hcsp) == FALSE) /* Wait for firmware ready */
- return (-1);
- }
- /*------------- get serial EEProm settting -------*/
- read_eeprom(hcsp);
- if (nvramp->Revision != 1)
- return (-1);
- hcsp->HCS_SCSI_ID = nvramp->SCSI0Id;
- hcsp->HCS_BIOS = nvramp->BIOSConfig1;
- hcsp->HCS_MaxTar = MAX_TARGETS;
- readBytep = (UCHAR *) & (nvramp->Target00Config);
- for (i = 0; i < 16; readBytep++, i++) {
- hcsp->TargetFlag[i] = *readBytep;
- hcsp->MaximumTags[i] = orc_num_scb;
- } /* for */
- if (nvramp->SCSI0Config & NCC_BUSRESET) { /* Reset SCSI bus */
- hcsp->HCS_Flags |= HCF_SCSI_RESET;
- }
- ORC_WR(hcsp->HCS_Base + ORC_GIMSK, 0xFB); /* enable RP FIFO interrupt */
- return (0);
- }
- /*****************************************************************************
- Function name : orc_reset_scsi_bus
- 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 orc_reset_scsi_bus(ORC_HCS * pHCB)
- { /* I need Host Control Block Information */
- ULONG flags;
- spin_lock_irqsave(&(pHCB->BitAllocFlagLock), flags);
- initAFlag(pHCB);
- /* reset scsi bus */
- ORC_WR(pHCB->HCS_Base + ORC_HCTRL, SCSIRST);
- if (waitSCSIRSTdone(pHCB) == FALSE) {
- spin_unlock_irqrestore(&(pHCB->BitAllocFlagLock), flags);
- return (SCSI_RESET_ERROR);
- } else {
- spin_unlock_irqrestore(&(pHCB->BitAllocFlagLock), flags);
- return (SCSI_RESET_SUCCESS);
- }
- }
- /*****************************************************************************
- Function name : orc_device_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 orc_device_reset(ORC_HCS * pHCB, ULONG SCpnt, unsigned int target, unsigned int ResetFlags)
- { /* I need Host Control Block Information */
- ORC_SCB *pScb;
- ESCB *pVirEscb;
- ORC_SCB *pVirScb;
- UCHAR i;
- ULONG flags;
- spin_lock_irqsave(&(pHCB->BitAllocFlagLock), flags);
- pScb = (ORC_SCB *) NULL;
- pVirEscb = (ESCB *) NULL;
- /* setup scatter list address with one buffer */
- pVirScb = (ORC_SCB *) pHCB->HCS_virScbArray;
- initAFlag(pHCB);
- /* device reset */
- for (i = 0; i < orc_num_scb; i++) {
- pVirEscb = pVirScb->SCB_EScb;
- if ((pVirScb->SCB_Status) && (pVirEscb->SCB_Srb == (unsigned char *) SCpnt))
- break;
- pVirScb++;
- }
- if (i == orc_num_scb) {
- printk("Unable to Reset - No SCB Foundn");
- spin_unlock_irqrestore(&(pHCB->BitAllocFlagLock), flags);
- return (SCSI_RESET_NOT_RUNNING);
- }
- if ((pScb = orc_alloc_scb(pHCB)) == NULL) {
- spin_unlock_irqrestore(&(pHCB->BitAllocFlagLock), flags);
- return (SCSI_RESET_NOT_RUNNING);
- }
- pScb->SCB_Opcode = ORC_BUSDEVRST;
- pScb->SCB_Target = target;
- pScb->SCB_HaStat = 0;
- pScb->SCB_TaStat = 0;
- pScb->SCB_Status = 0x0;
- pScb->SCB_Link = 0xFF;
- pScb->SCB_Reserved0 = 0;
- pScb->SCB_Reserved1 = 0;
- pScb->SCB_XferLen = 0;
- pScb->SCB_SGLen = 0;
- pVirEscb->SCB_Srb = 0;
- if (ResetFlags & SCSI_RESET_SYNCHRONOUS) {
- pVirEscb->SCB_Srb = (unsigned char *) SCpnt;
- }
- orc_exec_scb(pHCB, pScb); /* Start execute SCB */
- spin_unlock_irqrestore(&(pHCB->BitAllocFlagLock), flags);
- return SCSI_RESET_PENDING;
- }
- /***************************************************************************/
- ORC_SCB *__orc_alloc_scb(ORC_HCS * hcsp)
- {
- ORC_SCB *pTmpScb;
- UCHAR Ch;
- ULONG idx;
- UCHAR index;
- UCHAR i;
- Ch = hcsp->HCS_Index;
- for (i = 0; i < 8; i++) {
- for (index = 0; index < 32; index++) {
- if ((hcsp->BitAllocFlag[Ch][i] >> index) & 0x01) {
- hcsp->BitAllocFlag[Ch][i] &= ~(1 << index);
- break;
- }
- }
- idx = index + 32 * i;
- pTmpScb = (PVOID) ((ULONG) hcsp->HCS_virScbArray + (idx * sizeof(ORC_SCB)));
- return (pTmpScb);
- }
- return (NULL);
- }
- ORC_SCB *orc_alloc_scb(ORC_HCS * hcsp)
- {
- ORC_SCB *pTmpScb;
- ULONG flags;
- spin_lock_irqsave(&(hcsp->BitAllocFlagLock), flags);
- pTmpScb = __orc_alloc_scb(hcsp);
- spin_unlock_irqrestore(&(hcsp->BitAllocFlagLock), flags);
- return (pTmpScb);
- }
- /***************************************************************************/
- void orc_release_scb(ORC_HCS * hcsp, ORC_SCB * scbp)
- {
- ULONG flags;
- UCHAR Index;
- UCHAR i;
- UCHAR Ch;
- spin_lock_irqsave(&(hcsp->BitAllocFlagLock), flags);
- Ch = hcsp->HCS_Index;
- Index = scbp->SCB_ScbIdx;
- i = Index / 32;
- Index %= 32;
- hcsp->BitAllocFlag[Ch][i] |= (1 << Index);
- spin_unlock_irqrestore(&(hcsp->BitAllocFlagLock), flags);
- }
- /*****************************************************************************
- Function name : Addinia100_into_Adapter_table
- 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 Addinia100_into_Adapter_table(WORD wBIOS, WORD wBASE, BYTE bInterrupt,
- BYTE bBus, BYTE bDevice)
- {
- unsigned int i, j;
- for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) {
- if (inia100_adpt[i].ADPT_BIOS < wBIOS)
- continue;
- if (inia100_adpt[i].ADPT_BIOS == wBIOS) {
- if (inia100_adpt[i].ADPT_BASE == wBASE) {
- if (inia100_adpt[i].ADPT_Bus != 0xFF)
- return (FAILURE);
- } else if (inia100_adpt[i].ADPT_BASE < wBASE)
- continue;
- }
- for (j = MAX_SUPPORTED_ADAPTERS - 1; j > i; j--) {
- inia100_adpt[j].ADPT_BASE = inia100_adpt[j - 1].ADPT_BASE;
- inia100_adpt[j].ADPT_INTR = inia100_adpt[j - 1].ADPT_INTR;
- inia100_adpt[j].ADPT_BIOS = inia100_adpt[j - 1].ADPT_BIOS;
- inia100_adpt[j].ADPT_Bus = inia100_adpt[j - 1].ADPT_Bus;
- inia100_adpt[j].ADPT_Device = inia100_adpt[j - 1].ADPT_Device;
- }
- inia100_adpt[i].ADPT_BASE = wBASE;
- inia100_adpt[i].ADPT_INTR = bInterrupt;
- inia100_adpt[i].ADPT_BIOS = wBIOS;
- inia100_adpt[i].ADPT_Bus = bBus;
- inia100_adpt[i].ADPT_Device = bDevice;
- return (SUCCESSFUL);
- }
- return (FAILURE);
- }
- /*****************************************************************************
- Function name : init_inia100Adapter_table
- Description : This function will scan PCI bus to get all Orchid card
- Input : None.
- Output : None.
- Return : SUCCESSFUL - Successful scan
- ohterwise - No drives founded
- *****************************************************************************/
- void init_inia100Adapter_table(void)
- {
- int i;
- for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) { /* Initialize adapter structure */
- inia100_adpt[i].ADPT_BIOS = 0xffff;
- inia100_adpt[i].ADPT_BASE = 0xffff;
- inia100_adpt[i].ADPT_INTR = 0xff;
- inia100_adpt[i].ADPT_Bus = 0xff;
- inia100_adpt[i].ADPT_Device = 0xff;
- }
- }
- /*****************************************************************************
- Function name : get_orcPCIConfig
- Description :
- Input : pHCB - Pointer to host adapter structure
- Output : None.
- Return : pSRB - Pointer to SCSI request block.
- *****************************************************************************/
- void get_orcPCIConfig(ORC_HCS * pCurHcb, int ch_idx)
- {
- pCurHcb->HCS_Base = inia100_adpt[ch_idx].ADPT_BASE; /* Supply base address */
- pCurHcb->HCS_BIOS = inia100_adpt[ch_idx].ADPT_BIOS; /* Supply BIOS address */
- pCurHcb->HCS_Intr = inia100_adpt[ch_idx].ADPT_INTR; /* Supply interrupt line */
- return;
- }
- /*****************************************************************************
- Function name : abort_SCB
- 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 abort_SCB(ORC_HCS * hcsp, ORC_SCB * pScb)
- {
- unsigned char bData, bStatus;
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, ORC_CMD_ABORT_SCB); /* Write command */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- ORC_WR(hcsp->HCS_Base + ORC_HDATA, pScb->SCB_ScbIdx); /* Write address */
- ORC_WR(hcsp->HCS_Base + ORC_HCTRL, HDO);
- if (waitHDOoff(hcsp) == FALSE) /* Wait HDO off */
- return (FALSE);
- if (waitHDIset(hcsp, &bData) == FALSE) /* Wait HDI set */
- return (FALSE);
- bStatus = ORC_RD(hcsp->HCS_Base, ORC_HDATA);
- ORC_WR(hcsp->HCS_Base + ORC_HSTUS, bData); /* Clear HDI */
- if (bStatus == 1) /* 0 - Successfully */
- return (FALSE); /* 1 - Fail */
- return (TRUE);
- }
- /*****************************************************************************
- 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 orc_abort_srb(ORC_HCS * hcsp, ULONG SCpnt)
- {
- ESCB *pVirEscb;
- ORC_SCB *pVirScb;
- UCHAR i;
- ULONG flags;
- spin_lock_irqsave(&(hcsp->BitAllocFlagLock), flags);
- pVirScb = (ORC_SCB *) hcsp->HCS_virScbArray;
- for (i = 0; i < orc_num_scb; i++, pVirScb++) {
- pVirEscb = pVirScb->SCB_EScb;
- if ((pVirScb->SCB_Status) && (pVirEscb->SCB_Srb == (unsigned char *) SCpnt)) {
- if (pVirScb->SCB_TagMsg == 0) {
- spin_unlock_irqrestore(&(hcsp->BitAllocFlagLock), flags);
- return (SCSI_ABORT_BUSY);
- } else {
- if (abort_SCB(hcsp, pVirScb)) {
- pVirEscb->SCB_Srb = NULL;
- spin_unlock_irqrestore(&(hcsp->BitAllocFlagLock), flags);
- return (SCSI_ABORT_SUCCESS);
- } else {
- spin_unlock_irqrestore(&(hcsp->BitAllocFlagLock), flags);
- return (SCSI_ABORT_NOT_RUNNING);
- }
- }
- }
- }
- spin_unlock_irqrestore(&(hcsp->BitAllocFlagLock), flags);
- return (SCSI_ABORT_NOT_RUNNING);
- }
- /***********************************************************************
- Routine Description:
- This is the interrupt service routine for the Orchid SCSI adapter.
- It reads the interrupt register to determine if the adapter is indeed
- the source of the interrupt and clears the interrupt at the device.
- Arguments:
- HwDeviceExtension - HBA miniport driver's adapter data storage
- Return Value:
- ***********************************************************************/
- void orc_interrupt(
- ORC_HCS * hcsp
- )
- {
- BYTE bScbIdx;
- ORC_SCB *pScb;
- if (ORC_RD(hcsp->HCS_Base, ORC_RQUEUECNT) == 0) {
- return; // (FALSE);
- }
- do {
- bScbIdx = ORC_RD(hcsp->HCS_Base, ORC_RQUEUE);
- pScb = (ORC_SCB *) ((ULONG) hcsp->HCS_virScbArray + (ULONG) (sizeof(ORC_SCB) * bScbIdx));
- pScb->SCB_Status = 0x0;
- inia100SCBPost((BYTE *) hcsp, (BYTE *) pScb);
- } while (ORC_RD(hcsp->HCS_Base, ORC_RQUEUECNT));
- return; //(TRUE);
- } /* End of I1060Interrupt() */