diff options
Diffstat (limited to 'drivers/scsi/pci2220i.c')
| -rw-r--r-- | drivers/scsi/pci2220i.c | 2915 |
1 files changed, 0 insertions, 2915 deletions
diff --git a/drivers/scsi/pci2220i.c b/drivers/scsi/pci2220i.c deleted file mode 100644 index e395e420315..00000000000 --- a/drivers/scsi/pci2220i.c +++ /dev/null @@ -1,2915 +0,0 @@ -/**************************************************************************** - * Perceptive Solutions, Inc. PCI-2220I device driver for Linux. - * - * pci2220i.c - Linux Host Driver for PCI-2220I EIDE RAID Adapters - * - * Copyright (c) 1997-1999 Perceptive Solutions, Inc. - * All Rights Reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that redistributions of source - * code retain the above copyright notice and this comment without - * modification. - * - * Technical updates and product information at: - * http://www.psidisk.com - * - * Please send questions, comments, bug reports to: - * tech@psidisk.com Technical Support - * - * - * Revisions 1.10 Mar-26-1999 - * - Updated driver for RAID and hot reconstruct support. - * - * Revisions 1.11 Mar-26-1999 - * - Fixed spinlock and PCI configuration. - * - * Revision 2.00 December-1-1999 - * - Added code for the PCI-2240I controller - * - Added code for ATAPI devices. - * - Double buffer for scatter/gather support - * - * Revision 2.10 March-27-2000 - * - Added support for dynamic DMA - * - ****************************************************************************/ - -#error Convert me to understand page+offset based scatterlists - -//#define DEBUG 1 - -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/proc_fs.h> -#include <linux/stat.h> -#include <linux/blkdev.h> -#include <linux/timer.h> -#include <linux/spinlock.h> - -#include <asm/dma.h> -#include <asm/system.h> -#include <asm/io.h> - -#include "scsi.h" -#include <scsi/scsi_host.h> -#include "pci2220i.h" -#include "psi_dale.h" - - -#define PCI2220I_VERSION "2.10" -#define READ_CMD IDE_CMD_READ_MULTIPLE -#define WRITE_CMD IDE_CMD_WRITE_MULTIPLE -#define MAX_BUS_MASTER_BLOCKS SECTORSXFER // This is the maximum we can bus master - -#ifdef DEBUG -#define DEB(x) x -#define STOP_HERE() {int st;for(st=0;st<100;st++){st=1;}} -#else -#define DEB(x) -#define STOP_HERE() -#endif - -#define MAXADAPTER 4 // Increase this and the sizes of the arrays below, if you need more. - - -typedef struct - { - UCHAR byte6; // device select register image - UCHAR spigot; // spigot number - UCHAR spigots[2]; // RAID spigots - UCHAR deviceID[2]; // device ID codes - USHORT sectors; // number of sectors per track - USHORT heads; // number of heads - USHORT cylinders; // number of cylinders for this device - USHORT spareword; // placeholder - ULONG blocks; // number of blocks on device - DISK_MIRROR DiskMirror[2]; // RAID status and control - ULONG lastsectorlba[2]; // last addressable sector on the drive - USHORT raid; // RAID active flag - USHORT mirrorRecon; - UCHAR reconOn; - USHORT reconCount; - USHORT reconIsStarting; // indicate hot reconstruct is starting - UCHAR cmdDrqInt; // flag for command interrupt - UCHAR packet; // command packet size in bytes - } OUR_DEVICE, *POUR_DEVICE; - -typedef struct - { - USHORT bigD; // identity is a PCI-2240I if true, otherwise a PCI-2220I - USHORT atapi; // this interface is for ATAPI devices only - ULONG regDmaDesc; // address of the DMA discriptor register for direction of transfer - ULONG regDmaCmdStat; // Byte #1 of DMA command status register - ULONG regDmaAddrPci; // 32 bit register for PCI address of DMA - ULONG regDmaAddrLoc; // 32 bit register for local bus address of DMA - ULONG regDmaCount; // 32 bit register for DMA transfer count - ULONG regDmaMode; // 32 bit register for DMA mode control - ULONG regRemap; // 32 bit local space remap - ULONG regDesc; // 32 bit local region descriptor - ULONG regRange; // 32 bit local range - ULONG regIrqControl; // 16 bit Interrupt enable/disable and status - ULONG regScratchPad; // scratch pad I/O base address - ULONG regBase; // Base I/O register for data space - ULONG regData; // data register I/O address - ULONG regError; // error register I/O address - ULONG regSectCount; // sector count register I/O address - ULONG regLba0; // least significant byte of LBA - ULONG regLba8; // next least significant byte of LBA - ULONG regLba16; // next most significan byte of LBA - ULONG regLba24; // head and most 4 significant bits of LBA - ULONG regStatCmd; // status on read and command on write register - ULONG regStatSel; // board status on read and spigot select on write register - ULONG regFail; // fail bits control register - ULONG regAltStat; // alternate status and drive control register - ULONG basePort; // PLX base I/O port - USHORT timingMode; // timing mode currently set for adapter - USHORT timingPIO; // TRUE if PIO timing is active - struct pci_dev *pcidev; - ULONG timingAddress; // address to use on adapter for current timing mode - ULONG irqOwned; // owned IRQ or zero if shared - UCHAR numberOfDrives; // saved number of drives on this controller - UCHAR failRegister; // current inverted data in fail register - OUR_DEVICE device[BIGD_MAXDRIVES]; - DISK_MIRROR *raidData[BIGD_MAXDRIVES]; - ULONG startSector; - USHORT sectorCount; - ULONG readCount; - UCHAR *currentSgBuffer; - ULONG currentSgCount; - USHORT nextSg; - UCHAR cmd; - Scsi_Cmnd *SCpnt; - POUR_DEVICE pdev; // current device opearating on - USHORT devInReconIndex; - USHORT expectingIRQ; - USHORT reconOn; // Hot reconstruct is to be done. - USHORT reconPhase; // Hot reconstruct operation is in progress. - ULONG reconSize; - USHORT demoFail; // flag for RAID failure demonstration - USHORT survivor; - USHORT failinprog; - struct timer_list reconTimer; - struct timer_list timer; - UCHAR *kBuffer; - dma_addr_t kBufferDma; - UCHAR reqSense; - UCHAR atapiCdb[16]; - UCHAR atapiSpecial; - } ADAPTER2220I, *PADAPTER2220I; - -#define HOSTDATA(host) ((PADAPTER2220I)&host->hostdata) - -#define RECON_PHASE_READY 0x01 -#define RECON_PHASE_COPY 0x02 -#define RECON_PHASE_UPDATE 0x03 -#define RECON_PHASE_LAST 0x04 -#define RECON_PHASE_END 0x07 -#define RECON_PHASE_MARKING 0x80 -#define RECON_PHASE_FAILOVER 0xFF - -static struct Scsi_Host *PsiHost[MAXADAPTER] = {NULL,}; // One for each adapter -static int NumAdapters = 0; -static int Installed = 0; -static SETUP DaleSetup; -static DISK_MIRROR DiskMirror[BIGD_MAXDRIVES]; -static ULONG ModeArray[] = {DALE_DATA_MODE2, DALE_DATA_MODE3, DALE_DATA_MODE4, DALE_DATA_MODE5}; -static ULONG ModeArray2[] = {BIGD_DATA_MODE2, BIGD_DATA_MODE3, BIGD_DATA_MODE4, BIGD_DATA_MODE5}; - -static void ReconTimerExpiry (unsigned long data); - -/******************************************************************************************************* - * Name: Alarm - * - * Description: Sound the for the given device - * - * Parameters: padapter - Pointer adapter data structure. - * device - Device number. - * - * Returns: Nothing. - * - ******************************************************************************************************/ -static void Alarm (PADAPTER2220I padapter, UCHAR device) - { - UCHAR zc; - - if ( padapter->bigD ) - { - zc = device | (FAIL_ANY | FAIL_AUDIBLE); - if ( padapter->failRegister & FAIL_ANY ) - zc |= FAIL_MULTIPLE; - - padapter->failRegister = zc; - outb_p (~zc, padapter->regFail); - } - else - outb_p (0x3C | (1 << device), padapter->regFail); // sound alarm and set fail light - } -/**************************************************************** - * Name: MuteAlarm :LOCAL - * - * Description: Mute the audible alarm. - * - * Parameters: padapter - Pointer adapter data structure. - * - * Returns: TRUE if drive does not assert DRQ in time. - * - ****************************************************************/ -static void MuteAlarm (PADAPTER2220I padapter) - { - UCHAR old; - - if ( padapter->bigD ) - { - padapter->failRegister &= ~FAIL_AUDIBLE; - outb_p (~padapter->failRegister, padapter->regFail); - } - else - { - old = (inb_p (padapter->regStatSel) >> 3) | (inb_p (padapter->regStatSel) & 0x83); - outb_p (old | 0x40, padapter->regFail); - } - } -/**************************************************************** - * Name: WaitReady :LOCAL - * - * Description: Wait for device ready. - * - * Parameters: padapter - Pointer adapter data structure. - * - * Returns: TRUE if drive does not assert DRQ in time. - * - ****************************************************************/ -static int WaitReady (PADAPTER2220I padapter) - { - ULONG z; - UCHAR status; - - for ( z = 0; z < (TIMEOUT_READY * 4); z++ ) - { - status = inb_p (padapter->regStatCmd); - if ( (status & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY ) - return 0; - udelay (250); - } - return status; - } -/**************************************************************** - * Name: WaitReadyReset :LOCAL - * - * Description: Wait for device ready. - * - * Parameters: padapter - Pointer adapter data structure. - * - * Returns: TRUE if drive does not assert DRQ in time. - * - ****************************************************************/ -static int WaitReadyReset (PADAPTER2220I padapter) - { - ULONG z; - UCHAR status; - - for ( z = 0; z < (125 * 16); z++ ) // wait up to 1/4 second - { - status = inb_p (padapter->regStatCmd); - if ( (status & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY ) - { - DEB (printk ("\nPCI2220I: Reset took %ld mSec to be ready", z / 8)); - return 0; - } - udelay (125); - } - DEB (printk ("\nPCI2220I: Reset took more than 2 Seconds to come ready, Disk Failure")); - return status; - } -/**************************************************************** - * Name: WaitDrq :LOCAL - * - * Description: Wait for device ready for data transfer. - * - * Parameters: padapter - Pointer adapter data structure. - * - * Returns: TRUE if drive does not assert DRQ in time. - * - ****************************************************************/ -static int WaitDrq (PADAPTER2220I padapter) - { - ULONG z; - UCHAR status; - - for ( z = 0; z < (TIMEOUT_DRQ * 4); z++ ) - { - status = inb_p (padapter->regStatCmd); - if ( status & IDE_STATUS_DRQ ) - return 0; - udelay (250); - } - return status; - } -/**************************************************************** - * Name: AtapiWaitReady :LOCAL - * - * Description: Wait for device busy and DRQ to be cleared. - * - * Parameters: padapter - Pointer adapter data structure. - * msec - Number of milliseconds to wait. - * - * Returns: TRUE if drive does not clear busy in time. - * - ****************************************************************/ -static int AtapiWaitReady (PADAPTER2220I padapter, int msec) - { - int z; - - for ( z = 0; z < (msec * 16); z++ ) - { - if ( !(inb_p (padapter->regStatCmd) & (IDE_STATUS_BUSY | IDE_STATUS_DRQ)) ) - return FALSE; - udelay (125); - } - return TRUE; - } -/**************************************************************** - * Name: AtapiWaitDrq :LOCAL - * - * Description: Wait for device ready for data transfer. - * - * Parameters: padapter - Pointer adapter data structure. - * msec - Number of milliseconds to wait. - * - * Returns: TRUE if drive does not assert DRQ in time. - * - ****************************************************************/ -static int AtapiWaitDrq (PADAPTER2220I padapter, int msec) - { - ULONG z; - - for ( z = 0; z < (msec * 16); z++ ) - { - if ( inb_p (padapter->regStatCmd) & IDE_STATUS_DRQ ) - return 0; - udelay (128); - } - return TRUE; - } -/**************************************************************** - * Name: HardReset :LOCAL - * - * Description: Wait for device ready for data transfer. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to device. - * spigot - Spigot number. - * - * Returns: TRUE if drive does not assert DRQ in time. - * - ****************************************************************/ -static int HardReset (PADAPTER2220I padapter, POUR_DEVICE pdev, UCHAR spigot) - { - DEB (printk ("\npci2220i:RESET spigot = %X devices = %d, %d", spigot, pdev->deviceID[0], pdev->deviceID[1])); - mdelay (100); // just wait 100 mSec to let drives flush - SelectSpigot (padapter, spigot | SEL_IRQ_OFF); - - outb_p (0x0E, padapter->regAltStat); // reset the suvivor - udelay (100); // wait a little - outb_p (0x08, padapter->regAltStat); // clear the reset - udelay (100); - - outb_p (0xA0, padapter->regLba24); // select the master drive - if ( WaitReadyReset (padapter) ) - { - DEB (printk ("\npci2220i: master not ready after reset")); - return TRUE; - } - outb_p (0xB0, padapter->regLba24); // try the slave drive - if ( (inb_p (padapter->regStatCmd) & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY ) - { - DEB (printk ("\nPCI2220I: initializing slave drive on spigot %X", spigot)); - outb_p (SECTORSXFER, padapter->regSectCount); - WriteCommand (padapter, IDE_CMD_SET_MULTIPLE); - if ( WaitReady (padapter) ) - { - DEB (printk ("\npci2220i: slave not ready after set multiple")); - return TRUE; - } - } - - outb_p (0xA0, padapter->regLba24); // select the drive - outb_p (SECTORSXFER, padapter->regSectCount); - WriteCommand (padapter, IDE_CMD_SET_MULTIPLE); - if ( WaitReady (padapter) ) - { - DEB (printk ("\npci2220i: master not ready after set multiple")); - return TRUE; - } - return FALSE; - } -/**************************************************************** - * Name: AtapiReset :LOCAL - * - * Description: Wait for device ready for data transfer. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to device. - * - * Returns: TRUE if drive does not come ready. - * - ****************************************************************/ -static int AtapiReset (PADAPTER2220I padapter, POUR_DEVICE pdev) - { - SelectSpigot (padapter, pdev->spigot); - AtapiDevice (padapter, pdev->byte6); - AtapiCountLo (padapter, 0); - AtapiCountHi (padapter, 0); - WriteCommand (padapter, IDE_COMMAND_ATAPI_RESET); - udelay (125); - if ( AtapiWaitReady (padapter, 1000) ) - return TRUE; - if ( inb_p (padapter->regStatCmd) || (inb_p (padapter->regLba8) != 0x14) || (inb_p (padapter->regLba16) != 0xEB) ) - return TRUE; - return FALSE; - } -/**************************************************************** - * Name: WalkScatGath :LOCAL - * - * Description: Transfer data to/from scatter/gather buffers. - * - * Parameters: padapter - Pointer adapter data structure. - * datain - TRUE if data read. - * length - Number of bytes to transfer. - * - * Returns: Nothing. - * - ****************************************************************/ -static void WalkScatGath (PADAPTER2220I padapter, UCHAR datain, ULONG length) - { - ULONG count; - UCHAR *buffer = padapter->kBuffer; - - while ( length ) - { - count = ( length > padapter->currentSgCount ) ? padapter->currentSgCount : length; - - if ( datain ) - memcpy (padapter->currentSgBuffer, buffer, count); - else - memcpy (buffer, padapter->currentSgBuffer, count); - - padapter->currentSgCount -= count; - if ( !padapter->currentSgCount ) - { - if ( padapter->nextSg < padapter->SCpnt->use_sg ) - { - padapter->currentSgBuffer = ((struct scatterlist *)padapter->SCpnt->request_buffer)[padapter->nextSg].address; - padapter->currentSgCount = ((struct scatterlist *)padapter->SCpnt->request_buffer)[padapter->nextSg].length; - padapter->nextSg++; - } - } - else - padapter->currentSgBuffer += count; - - length -= count; - buffer += count; - } - } -/**************************************************************** - * Name: BusMaster :LOCAL - * - * Description: Do a bus master I/O. - * - * Parameters: padapter - Pointer adapter data structure. - * datain - TRUE if data read. - * irq - TRUE if bus master interrupt expected. - * - * Returns: Nothing. - * - ****************************************************************/ -static void BusMaster (PADAPTER2220I padapter, UCHAR datain, UCHAR irq) - { - ULONG zl; - - zl = ( padapter->sectorCount > MAX_BUS_MASTER_BLOCKS ) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount; - padapter->sectorCount -= zl; - zl *= (ULONG)BYTES_PER_SECTOR; - - if ( datain ) - { - padapter->readCount = zl; - outb_p (8, padapter->regDmaDesc); // read operation - if ( padapter->bigD ) - { - if ( irq && !padapter->sectorCount ) - outb_p (0x0C, padapter->regDmaMode); // interrupt on - else - outb_p (0x08, padapter->regDmaMode); // no interrupt - } - else - { - if ( irq && !padapter->sectorCount ) - outb_p (0x05, padapter->regDmaMode); // interrupt on - else - outb_p (0x01, padapter->regDmaMode); // no interrupt - } - } - else - { - outb_p (0x00, padapter->regDmaDesc); // write operation - if ( padapter->bigD ) - outb_p (0x08, padapter->regDmaMode); // no interrupt - else - outb_p (0x01, padapter->regDmaMode); // no interrupt - WalkScatGath (padapter, FALSE, zl); - } - - outl (padapter->timingAddress, padapter->regDmaAddrLoc); - outl (padapter->kBufferDma, padapter->regDmaAddrPci); - outl (zl, padapter->regDmaCount); - outb_p (0x03, padapter->regDmaCmdStat); // kick the DMA engine in gear - } -/**************************************************************** - * Name: AtapiBusMaster :LOCAL - * - * Description: Do a bus master I/O. - * - * Parameters: padapter - Pointer adapter data structure. - * datain - TRUE if data read. - * length - Number of bytes to transfer. - * - * Returns: Nothing. - * - ****************************************************************/ -static void AtapiBusMaster (PADAPTER2220I padapter, UCHAR datain, ULONG length) - { - outl (padapter->timingAddress, padapter->regDmaAddrLoc); - outl (padapter->kBufferDma, padapter->regDmaAddrPci); - outl (length, padapter->regDmaCount); - if ( datain ) - { - if ( padapter->readCount ) - WalkScatGath (padapter, TRUE, padapter->readCount); - outb_p (0x08, padapter->regDmaDesc); // read operation - outb_p (0x08, padapter->regDmaMode); // no interrupt - padapter->readCount = length; - } - else - { - outb_p (0x00, padapter->regDmaDesc); // write operation - outb_p (0x08, padapter->regDmaMode); // no interrupt - if ( !padapter->atapiSpecial ) - WalkScatGath (padapter, FALSE, length); - } - outb_p (0x03, padapter->regDmaCmdStat); // kick the DMA engine in gear - } -/**************************************************************** - * Name: WriteData :LOCAL - * - * Description: Write data to device. - * - * Parameters: padapter - Pointer adapter data structure. - * - * Returns: TRUE if drive does not assert DRQ in time. - * - ****************************************************************/ -static int WriteData (PADAPTER2220I padapter) - { - ULONG zl; - - if ( !WaitDrq (padapter) ) - { - if ( padapter->timingPIO ) - { - zl = (padapter->sectorCount > MAX_BUS_MASTER_BLOCKS) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount; - WalkScatGath (padapter, FALSE, zl * BYTES_PER_SECTOR); - outsw (padapter->regData, padapter->kBuffer, zl * (BYTES_PER_SECTOR / 2)); - padapter->sectorCount -= zl; - } - else - BusMaster (padapter, 0, 0); - return 0; - } - padapter->cmd = 0; // null out the command byte - return 1; - } -/**************************************************************** - * Name: WriteDataBoth :LOCAL - * - * Description: Write data to device. - * - * Parameters: padapter - Pointer to adapter structure. - * pdev - Pointer to device structure - * - * Returns: Index + 1 of drive not failed or zero for OK. - * - ****************************************************************/ -static int WriteDataBoth (PADAPTER2220I padapter, POUR_DEVICE pdev) - { - ULONG zl; - UCHAR status0, status1; - - SelectSpigot (padapter, pdev->spigots[0]); - status0 = WaitDrq (padapter); - if ( !status0 ) - { - SelectSpigot (padapter, pdev->spigots[1]); - status1 = WaitDrq (padapter); - if ( !status1 ) - { - SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1] | padapter->bigD); - if ( padapter->timingPIO ) - { - zl = (padapter->sectorCount > MAX_BUS_MASTER_BLOCKS) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount; - WalkScatGath (padapter, FALSE, zl * BYTES_PER_SECTOR); - outsw (padapter->regData, padapter->kBuffer, zl * (BYTES_PER_SECTOR / 2)); - padapter->sectorCount -= zl; - } - else - BusMaster (padapter, 0, 0); - return 0; - } - } - padapter->cmd = 0; // null out the command byte - if ( status0 ) - return 2; - return 1; - } -/**************************************************************** - * Name: IdeCmd :LOCAL - * - * Description: Process an IDE command. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to device. - * - * Returns: Zero if no error or status register contents on error. - * - ****************************************************************/ -static UCHAR IdeCmd (PADAPTER2220I padapter, POUR_DEVICE pdev) - { - UCHAR status; - - SelectSpigot (padapter, pdev->spigot | padapter->bigD); // select the spigot - outb_p (pdev->byte6 | ((UCHAR *)(&padapter->startSector))[3], padapter->regLba24); // select the drive - status = WaitReady (padapter); - if ( !status ) - { - outb_p (padapter->sectorCount, padapter->regSectCount); - outb_p (((UCHAR *)(&padapter->startSector))[0], padapter->regLba0); - outb_p (((UCHAR *)(&padapter->startSector))[1], padapter->regLba8); - outb_p (((UCHAR *)(&padapter->startSector))[2], padapter->regLba16); - padapter->expectingIRQ = TRUE; - WriteCommand (padapter, padapter->cmd); - return 0; - } - - padapter->cmd = 0; // null out the command byte - return status; - } -/**************************************************************** - * Name: IdeCmdBoth :LOCAL - * - * Description: Process an IDE command to both drivers. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to device structure - * - * Returns: Index + 1 of drive not failed or zero for OK. - * - ****************************************************************/ -static UCHAR IdeCmdBoth (PADAPTER2220I padapter, POUR_DEVICE pdev) - { - UCHAR status0; - UCHAR status1; - - SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1]); // select the spigots - outb_p (padapter->pdev->byte6 | ((UCHAR *)(&padapter->startSector))[3], padapter->regLba24);// select the drive - SelectSpigot (padapter, pdev->spigots[0]); - status0 = WaitReady (padapter); - if ( !status0 ) - { - SelectSpigot (padapter, pdev->spigots[1]); - status1 = WaitReady (padapter); - if ( !status1 ) - { - SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1] | padapter->bigD); - outb_p (padapter->sectorCount, padapter->regSectCount); - outb_p (((UCHAR *)(&padapter->startSector))[0], padapter->regLba0); - outb_p (((UCHAR *)(&padapter->startSector))[1], padapter->regLba8); - outb_p (((UCHAR *)(&padapter->startSector))[2], padapter->regLba16); - padapter->expectingIRQ = TRUE; - WriteCommand (padapter, padapter->cmd); - return 0; - } - } - padapter->cmd = 0; // null out the command byte - if ( status0 ) - return 2; - return 1; - } -/**************************************************************** - * Name: OpDone :LOCAL - * - * Description: Complete an operatoin done sequence. - * - * Parameters: padapter - Pointer to host data block. - * spigot - Spigot select code. - * device - Device byte code. - * - * Returns: Nothing. - * - ****************************************************************/ -static void OpDone (PADAPTER2220I padapter, ULONG result) - { - Scsi_Cmnd *SCpnt = padapter->SCpnt; - - if ( padapter->reconPhase ) - { - padapter->reconPhase = 0; - if ( padapter->SCpnt ) - { - Pci2220i_QueueCommand (SCpnt, SCpnt->scsi_done); - } - else - { - if ( padapter->reconOn ) - { - ReconTimerExpiry ((unsigned long)padapter); - } - } - } - else - { - padapter->cmd = 0; - padapter->SCpnt = NULL; - padapter->pdev = NULL; - SCpnt->result = result; - SCpnt->scsi_done (SCpnt); - if ( padapter->reconOn && !padapter->reconTimer.data ) - { - padapter->reconTimer.expires = jiffies + (HZ / 4); // start in 1/4 second - padapter->reconTimer.data = (unsigned long)padapter; - add_timer (&padapter->reconTimer); - } - } - } -/**************************************************************** - * Name: InlineIdentify :LOCAL - * - * Description: Do an intline inquiry on a drive. - * - * Parameters: padapter - Pointer to host data block. - * spigot - Spigot select code. - * device - Device byte code. - * - * Returns: Last addressable sector or zero if none. - * - ****************************************************************/ -static ULONG InlineIdentify (PADAPTER2220I padapter, UCHAR spigot, UCHAR device) - { - PIDENTIFY_DATA pid = (PIDENTIFY_DATA)padapter->kBuffer; - - SelectSpigot (padapter, spigot | SEL_IRQ_OFF); // select the spigot - outb_p ((device << 4) | 0xA0, padapter->regLba24); // select the drive - if ( WaitReady (padapter) ) - return 0; - WriteCommand (padapter, IDE_COMMAND_IDENTIFY); - if ( WaitDrq (padapter) ) - return 0; - insw (padapter->regData, padapter->kBuffer, sizeof (IDENTIFY_DATA) >> 1); - return (pid->LBATotalSectors - 1); - } -/**************************************************************** - * Name: AtapiIdentify :LOCAL - * - * Description: Do an intline inquiry on a drive. - * - * Parameters: padapter - Pointer to host data block. - * pdev - Pointer to device table. - * - * Returns: TRUE on error. - * - ****************************************************************/ -static ULONG AtapiIdentify (PADAPTER2220I padapter, POUR_DEVICE pdev) - { - ATAPI_GENERAL_0 ag0; - USHORT zs; - int z; - - AtapiDevice (padapter, pdev->byte6); - WriteCommand (padapter, IDE_COMMAND_ATAPI_IDENTIFY); - if ( AtapiWaitDrq (padapter, 3000) ) - return TRUE; - - *(USHORT *)&ag0 = inw_p (padapter->regData); - for ( z = 0; z < 255; z++ ) - zs = inw_p (padapter->regData); - - if ( ag0.ProtocolType == 2 ) - { - if ( ag0.CmdDrqType == 1 ) - pdev->cmdDrqInt = TRUE; - switch ( ag0.CmdPacketSize ) - { - case 0: - pdev->packet = 6; - break; - case 1: - pdev->packet = 8; - break; - default: - pdev->packet = 6; - break; - } - return FALSE; - } - return TRUE; - } -/**************************************************************** - * Name: Atapi2Scsi - * - * Description: Convert ATAPI data to SCSI data. - * - * Parameters: padapter - Pointer adapter data structure. - * SCpnt - Pointer to SCSI command structure. - * - * Returns: Nothing. - * - ****************************************************************/ -void Atapi2Scsi (PADAPTER2220I padapter, Scsi_Cmnd *SCpnt) - { - UCHAR *buff = padapter->currentSgBuffer; - - switch ( SCpnt->cmnd[0] ) - { - case SCSIOP_MODE_SENSE: - buff[0] = padapter->kBuffer[1]; - buff[1] = padapter->kBuffer[2]; - buff[2] = padapter->kBuffer[3]; - buff[3] = padapter->kBuffer[7]; - memcpy (&buff[4], &padapter->kBuffer[8], padapter->atapiCdb[8] - 8); - break; - case SCSIOP_INQUIRY: - padapter->kBuffer[2] = 2; - memcpy (buff, padapter->kBuffer, padapter->currentSgCount); - break; - default: - if ( padapter->readCount ) - WalkScatGath (padapter, TRUE, padapter->readCount); - break; - } - } -/**************************************************************** - * Name: Scsi2Atapi - * - * Description: Convert SCSI packet command to Atapi packet command. - * - * Parameters: padapter - Pointer adapter data structure. - * SCpnt - Pointer to SCSI command structure. - * - * Returns: Nothing. - * - ****************************************************************/ -static void Scsi2Atapi (PADAPTER2220I padapter, Scsi_Cmnd *SCpnt) - { - UCHAR *cdb = SCpnt->cmnd; - UCHAR *buff = padapter->currentSgBuffer; - - switch (cdb[0]) - { - case SCSIOP_READ6: - padapter->atapiCdb[0] = SCSIOP_READ; - padapter->atapiCdb[1] = cdb[1] & 0xE0; - padapter->atapiCdb[3] = cdb[1] & 0x1F; - padapter->atapiCdb[4] = cdb[2]; - padapter->atapiCdb[5] = cdb[3]; - padapter->atapiCdb[8] = cdb[4]; - padapter->atapiCdb[9] = cdb[5]; - break; - case SCSIOP_WRITE6: - padapter->atapiCdb[0] = SCSIOP_WRITE; - padapter->atapiCdb[1] = cdb[1] & 0xE0; - padapter->atapiCdb[3] = cdb[1] & 0x1F; - padapter->atapiCdb[4] = cdb[2]; - padapter->atapiCdb[5] = cdb[3]; - padapter->atapiCdb[8] = cdb[4]; - padapter->atapiCdb[9] = cdb[5]; - break; - case SCSIOP_MODE_SENSE: - padapter->atapiCdb[0] = SCSIOP_MODE_SENSE10; - padapter->atapiCdb[2] = cdb[2]; - padapter->atapiCdb[8] = cdb[4] + 4; - break; - - case SCSIOP_MODE_SELECT: - padapter->atapiSpecial = TRUE; - padapter->atapiCdb[0] = SCSIOP_MODE_SELECT10; - padapter->atapiCdb[1] = cdb[1] | 0x10; - memcpy (padapter->kBuffer, buff, 4); - padapter->kBuffer[4] = padapter->kBuffer[5] = 0; - padapter->kBuffer[6] = padapter->kBuffer[7] = 0; - memcpy (&padapter->kBuffer[8], &buff[4], cdb[4] - 4); - padapter->atapiCdb[8] = cdb[4] + 4; - break; - } - } -/**************************************************************** - * Name: AtapiSendCdb - * - * Description: Send the CDB packet to the device. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to device. - * cdb - Pointer to 16 byte SCSI cdb. - * - * Returns: Nothing. - * - ****************************************************************/ -static void AtapiSendCdb (PADAPTER2220I padapter, POUR_DEVICE pdev, CHAR *cdb) - { - DEB (printk ("\nPCI2242I: CDB: %X %X %X %X %X %X %X %X %X %X %X %X", cdb[0], cdb[1], cdb[2], cdb[3], cdb[4], cdb[5], cdb[6], cdb[7], cdb[8], cdb[9], cdb[10], cdb[11])); - outsw (padapter->regData, cdb, pdev->packet); - } -/**************************************************************** - * Name: AtapiRequestSense - * - * Description: Send the CDB packet to the device. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to device. - * SCpnt - Pointer to SCSI command structure. - * pass - If true then this is the second pass to send cdb. - * - * Returns: TRUE on error. - * - ****************************************************************/ -static int AtapiRequestSense (PADAPTER2220I padapter, POUR_DEVICE pdev, Scsi_Cmnd *SCpnt, UCHAR pass) - { - UCHAR cdb[16] = {SCSIOP_REQUEST_SENSE,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0}; - - DEB (printk ("\nPCI2242I: AUTO REQUEST SENSE")); - cdb[4] = (UCHAR)(sizeof (SCpnt->sense_buffer)); - if ( !pass ) - { - padapter->reqSense = TRUE; - AtapiCountLo (padapter, cdb[4]); - AtapiCountHi (padapter, 0); - outb_p (0, padapter->regError); - WriteCommand (padapter, IDE_COMMAND_ATAPI_PACKET); - if ( pdev->cmdDrqInt ) - return FALSE; - - if ( AtapiWaitDrq (padapter, 500) ) - return TRUE; - } - AtapiSendCdb (padapter, pdev, cdb); - return FALSE; - } -/**************************************************************** - * Name: InlineReadSignature :LOCAL - * - * Description: Do an inline read RAID sigature. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to device. - * index - index of data to read. - * - * Returns: Zero if no error or status register contents on error. - * - ****************************************************************/ -static UCHAR InlineReadSignature (PADAPTER2220I padapter, POUR_DEVICE pdev, int index) - { - UCHAR status; - ULONG zl = pdev->lastsectorlba[index]; - - SelectSpigot (padapter, pdev->spigots[index] | SEL_IRQ_OFF); // select the spigot without interrupts - outb_p (pdev->byte6 | ((UCHAR *)&zl)[3], padapter->regLba24); - status = WaitReady (padapter); - if ( !status ) - { - outb_p (((UCHAR *)&zl)[2], padapter->regLba16); - outb_p (((UCHAR *)&zl)[1], padapter->regLba8); - outb_p (((UCHAR *)&zl)[0], padapter->regLba0); - outb_p (1, padapter->regSectCount); - WriteCommand (padapter, IDE_COMMAND_READ); - status = WaitDrq (padapter); - if ( !status ) - { - insw (padapter->regData, padapter->kBuffer, BYTES_PER_SECTOR / 2); - ((ULONG *)(&pdev->DiskMirror[index]))[0] = ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[0]; - ((ULONG *)(&pdev->DiskMirror[index]))[1] = ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[1]; - // some drives assert DRQ before IRQ so let's make sure we clear the IRQ - WaitReady (padapter); - return 0; - } - } - return status; - } -/**************************************************************** - * Name: DecodeError :LOCAL - * - * Description: Decode and process device errors. - * - * Parameters: padapter - Pointer to adapter data. - * status - Status register code. - * - * Returns: The driver status code. - * - ****************************************************************/ -static ULONG DecodeError (PADAPTER2220I padapter, UCHAR status) - { - UCHAR error; - - padapter->expectingIRQ = 0; - if ( status & IDE_STATUS_WRITE_FAULT ) - { - return DID_PARITY << 16; - } - if ( status & IDE_STATUS_BUSY ) - return DID_BUS_BUSY << 16; - - error = inb_p (padapter->regError); - DEB(printk ("\npci2220i error register: %x", error)); - switch ( error ) - { - case IDE_ERROR_AMNF: - case IDE_ERROR_TKONF: - case IDE_ERROR_ABRT: - case IDE_ERROR_IDFN: - case IDE_ERROR_UNC: - case IDE_ERROR_BBK: - default: - return DID_ERROR << 16; - } - return DID_ERROR << 16; - } -/**************************************************************** - * Name: StartTimer :LOCAL - * - * Description: Start the timer. - * - * Parameters: ipadapter - Pointer adapter data structure. - * - * Returns: Nothing. - * - ****************************************************************/ -static void StartTimer (PADAPTER2220I padapter) - { - padapter->timer.expires = jiffies + TIMEOUT_DATA; - add_timer (&padapter->timer); - } -/**************************************************************** - * Name: WriteSignature :LOCAL - * - * Description: Start the timer. - * - * Parameters: padapter - Pointer adapter data structure. - * pdev - Pointer to our device. - * spigot - Selected spigot. - * index - index of mirror signature on device. - * - * Returns: TRUE on any error. - * - ****************************************************************/ -static int WriteSignature (PADAPTER2220I padapter, POUR_DEVICE pdev, UCHAR spigot, int index) - { - ULONG zl; - - SelectSpigot (padapter, spigot); - zl = pdev->lastsectorlba[index]; |