advansys.c

Linux内核源代码 为压缩文件 是<<Linux内核>>一书中的源代码

     1. Need to add memory mapping workaround. Test the memory mapping.
        If it doesn't work revert to I/O port access. Can a test be done
        safely?
     2. Handle an interrupt not working. Keep an interrupt counter in
        the interrupt handler. In the timeout function if the interrupt
        has not occurred then print a message and run in polled mode.
     3. Allow bus type scanning order to be changed.
     4. Need to add support for target mode commands, cf. CAM XPT.
     5  Need to add support for new Linux SCSI error handling method.
     6. Need to fix sti/cli code in Asc Library.
     7. Need to fix abort code in Adv Library.
     8. Reduce io_request_lock hold time.

  K. Credits

     Nathan Hartwell <[e-mail]> provided the directions and
     basis for the Linux v1.3.X changes which were included in the
     1.2 release.

     Thomas E Zerucha <[e-mail]> pointed out a bug
     in advansys_biosparam() which was fixed in the 1.3 release.

     Erik Ratcliffe <[e-mail]> has done testing of the
     AdvanSys driver in the Caldera releases.

     Rik van Riel <[e-mail]> provided a patch to
     AscWaitTixISRDone() which he found necessary to make the
     driver work with a SCSI-1 disk.

     Mark Moran <[e-mail]> has helped test Ultra-Wide
     support in the 3.1A driver.

     Doug Gilbert <[e-mail]> has made changes and
     suggestions to improve the driver and done testing.

     Ken Mort <[e-mail]> reported a DEBUG compile bug fixed
     in 3.2K.

  L. AdvanSys Contact Information
 
     Mail:                   Advanced System Products, Inc.
                             1150 Ringwood Court
                             San Jose, CA 95131
     Operator/Sales:         1-408-383-9400
     FAX:                    1-408-383-9612
     Tech Support:           1-408-467-2930
     Tech Support E-Mail:    [e-mail]
     FTP Site:               ftp.advansys.com (login: anonymous)
     Web Site:               http://www.advansys.com

*/


/*
 * --- Linux Version
 */

/* Convert Linux Version, Patch-level, Sub-level to LINUX_VERSION_CODE. */
#define ASC_LINUX_VERSION(V, P, S)    (((V) * 65536) + ((P) * 256) + (S))

#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#endif /* LINUX_VERSION_CODE */


/*
 * --- Linux Include Files 
 */

#include <linux/config.h>
#if LINUX_VERSION_CODE >= ASC_LINUX_VERSION(1,3,0)
#ifdef MODULE
#include <linux/module.h>
#endif /* MODULE */
#endif /* version >= v1.3.0 */
#include <linux/string.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#if LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,1,0)
#include <linux/head.h>
#endif /* verions < v2.1.0 */
#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/malloc.h>
#include <linux/mm.h>
#if LINUX_VERSION_CODE >= ASC_LINUX_VERSION(1,3,0)
#include <linux/proc_fs.h>
#endif /* version >= v1.3.0 */
#if LINUX_VERSION_CODE >= ASC_LINUX_VERSION(2,1,23)
#include <linux/init.h>
#endif /* version >= v2.1.23 */
#include <asm/io.h>
#include <asm/system.h>
#include <asm/dma.h>
#if LINUX_VERSION_CODE < ASC_LINUX_VERSION(1,3,0)
#include "../block/blk.h"
#else /* version >= v1.3.0 */
#include <linux/blk.h>
#include <linux/stat.h>
#endif /* version >= v1.3.0 */
#if LINUX_VERSION_CODE >= ASC_LINUX_VERSION(2,3,18)
#include <linux/spinlock.h>
#elif LINUX_VERSION_CODE >= ASC_LINUX_VERSION(2,1,95)
#include <asm/spinlock.h>
#endif /* version >= 2.1.95 */
#include "scsi.h"
#include "hosts.h"
#include "sd.h"
#include "advansys.h"
#if LINUX_VERSION_CODE >= ASC_LINUX_VERSION(2,1,93)
#ifdef CONFIG_PCI
#include <linux/pci.h>
#endif /* CONFIG_PCI */
#else /* version < v2.1.93 */
/*
 * For earlier than v2.1.93 the driver has its own PCI configuration.
 * If PCI is not needed in a kernel before v2.1.93 this define can be
 * turned-off to make the driver object smaller.
 */
#define ASC_CONFIG_PCI
#endif /* version < v2.1.93 */

#if LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,1,0)
#define cpu_to_le16(word)       (word)
#define le16_to_cpu(word)       (word)
#define cpu_to_le32(dword)      (dword)
#define le32_to_cpu(dword)      (dword)
#endif /* version < v2.1.0 */


/*
 * --- Driver Options
 */

/* Enable driver assertions. */
#define ADVANSYS_ASSERT

/* Enable driver tracing. */
/* #define ADVANSYS_DEBUG */

/*
 * Because of no /proc to display them, statistics are disabled
 * for versions prior to v1.3.0.
 */
#if LINUX_VERSION_CODE < ASC_LINUX_VERSION(1,3,0)
#undef ADVANSYS_STATS /* Disable statistics */
#else /* version >= v1.3.0 */
#define ADVANSYS_STATS /* Enable statistics. */
#endif /* version >= v1.3.0 */


/*
 * --- Debugging Header
 */

#ifdef ADVANSYS_DEBUG
#define STATIC
#else /* ADVANSYS_DEBUG */
#define STATIC static
#endif /* ADVANSYS_DEBUG */


/*
 * --- Asc Library Constants and Macros
 */

#define ASC_LIB_VERSION_MAJOR  1
#define ASC_LIB_VERSION_MINOR  24
#define ASC_LIB_SERIAL_NUMBER  121

/*
 * Portable Data Types
 *
 * Any instance where a 32-bit long or pointer type is assumed
 * for precision or HW defined structures, the following define
 * types must be used. In Linux the char, short, and int types
 * are all consistent at 8, 16, and 32 bits respectively. Pointers
 * and long types are 64 bits on Alpha and UltraSPARC.
 */ 
#define ASC_PADDR __u32         /* Physical/Bus address data type. */
#define ASC_VADDR __u32         /* Virtual address data type. */
#define ASC_DCNT  __u32         /* Unsigned Data count type. */
#define ASC_SDCNT __s32         /* Signed Data count type. */

/*
 * These macros are used to convert a virtual address to a
 * 32-bit value. This currently can be used on Linux Alpha
 * which uses 64-bit virtual address but a 32-bit bus address.
 * This is likely to break in the future, but doing this now
 * will give us time to change the HW and FW to handle 64-bit
 * addresses.
 */
#define ASC_VADDR_TO_U32   virt_to_bus
#define ASC_U32_TO_VADDR   bus_to_virt

typedef unsigned char uchar;

#ifndef NULL
#define NULL     (0)
#endif
#ifndef TRUE
#define TRUE     (1)
#endif
#ifndef FALSE
#define FALSE    (0)
#endif

#define EOF      (-1)
#define ERR      (-1)
#define UW_ERR   (uint)(0xFFFF)
#define isodd_word(val)   ((((uint)val) & (uint)0x0001) != 0)
#define AscPCIConfigVendorIDRegister      0x0000
#define AscPCIConfigDeviceIDRegister      0x0002
#define AscPCIConfigCommandRegister       0x0004
#define AscPCIConfigStatusRegister        0x0006
#define AscPCIConfigRevisionIDRegister    0x0008
#define AscPCIConfigCacheSize             0x000C
#define AscPCIConfigLatencyTimer          0x000D
#define AscPCIIOBaseRegister              0x0010
#define AscPCICmdRegBits_IOMemBusMaster   0x0007
#define ASC_PCI_ID2BUS(id)    ((id) & 0xFF)
#define ASC_PCI_ID2DEV(id)    (((id) >> 11) & 0x1F)
#define ASC_PCI_ID2FUNC(id)   (((id) >> 8) & 0x7)
#define ASC_PCI_MKID(bus, dev, func) ((((dev) & 0x1F) << 11) | (((func) & 0x7) << 8) | ((bus) & 0xFF))
#define ASC_PCI_VENDORID                  0x10CD
#define ASC_PCI_DEVICEID_1200A            0x1100
#define ASC_PCI_DEVICEID_1200B            0x1200
#define ASC_PCI_DEVICEID_ULTRA            0x1300 
#define ASC_PCI_REVISION_3150             0x02
#define ASC_PCI_REVISION_3050             0x03

#define  ASC_DVCLIB_CALL_DONE     (1)
#define  ASC_DVCLIB_CALL_FAILED   (0)
#define  ASC_DVCLIB_CALL_ERROR    (-1)

/*
 * Enable CC_VERY_LONG_SG_LIST to support up to 64K element SG lists.
 * The SRB structure will have to be changed and the ASC_SRB2SCSIQ()
 * macro re-defined to be able to obtain a ASC_SCSI_Q pointer from the
 * SRB structure.
 */
#define CC_VERY_LONG_SG_LIST 0
#define ASC_SRB2SCSIQ(srb_ptr)  (srb_ptr)

#define PortAddr            unsigned short    /* port address size  */
#define inp(port)           inb(port)
#define inpw(port)          inw(port)
#define inpl(port)          inl(port)
#define outp(port, byte)    outb((byte), (port))
#define outpw(port, word)   outw((word), (port))
#define outpl(port, dword) outl((dword), (port))
#define ASC_MAX_SG_QUEUE    7
#define ASC_MAX_SG_LIST     255

#define ASC_CS_TYPE  unsigned short

#define ASC_IS_ISA          (0x0001)
#define ASC_IS_ISAPNP       (0x0081)
#define ASC_IS_EISA         (0x0002)
#define ASC_IS_PCI          (0x0004)
#define ASC_IS_PCI_ULTRA    (0x0104)
#define ASC_IS_PCMCIA       (0x0008)
#define ASC_IS_MCA          (0x0020)
#define ASC_IS_VL           (0x0040)
#define ASC_ISA_PNP_PORT_ADDR  (0x279)
#define ASC_ISA_PNP_PORT_WRITE (ASC_ISA_PNP_PORT_ADDR+0x800)
#define ASC_IS_WIDESCSI_16  (0x0100)
#define ASC_IS_WIDESCSI_32  (0x0200)
#define ASC_IS_BIG_ENDIAN   (0x8000)
#define ASC_CHIP_MIN_VER_VL      (0x01)
#define ASC_CHIP_MAX_VER_VL      (0x07)
#define ASC_CHIP_MIN_VER_PCI     (0x09)
#define ASC_CHIP_MAX_VER_PCI     (0x0F)
#define ASC_CHIP_VER_PCI_BIT     (0x08)
#define ASC_CHIP_MIN_VER_ISA     (0x11)
#define ASC_CHIP_MIN_VER_ISA_PNP (0x21)
#define ASC_CHIP_MAX_VER_ISA     (0x27)
#define ASC_CHIP_VER_ISA_BIT     (0x30)
#define ASC_CHIP_VER_ISAPNP_BIT  (0x20)
#define ASC_CHIP_VER_ASYN_BUG    (0x21)
#define ASC_CHIP_VER_PCI             0x08
#define ASC_CHIP_VER_PCI_ULTRA_3150  (ASC_CHIP_VER_PCI | 0x02)
#define ASC_CHIP_VER_PCI_ULTRA_3050  (ASC_CHIP_VER_PCI | 0x03)
#define ASC_CHIP_MIN_VER_EISA (0x41)
#define ASC_CHIP_MAX_VER_EISA (0x47)
#define ASC_CHIP_VER_EISA_BIT (0x40)
#define ASC_CHIP_LATEST_VER_EISA   ((ASC_CHIP_MIN_VER_EISA - 1) + 3)
#define ASC_MAX_LIB_SUPPORTED_ISA_CHIP_VER   0x21
#define ASC_MAX_LIB_SUPPORTED_PCI_CHIP_VER   0x0A
#define ASC_MAX_VL_DMA_ADDR     (0x07FFFFFFL)
#define ASC_MAX_VL_DMA_COUNT    (0x07FFFFFFL)
#define ASC_MAX_PCI_DMA_ADDR    (0xFFFFFFFFL)
#define ASC_MAX_PCI_DMA_COUNT   (0xFFFFFFFFL)
#define ASC_MAX_ISA_DMA_ADDR    (0x00FFFFFFL)
#define ASC_MAX_ISA_DMA_COUNT   (0x00FFFFFFL)
#define ASC_MAX_EISA_DMA_ADDR   (0x07FFFFFFL)
#define ASC_MAX_EISA_DMA_COUNT  (0x07FFFFFFL)
#ifndef inpw_noswap
#define inpw_noswap(port)         inpw(port)
#endif
#ifndef outpw_noswap
#define outpw_noswap(port, data)  outpw(port, data)
#endif
#define ASC_SCSI_ID_BITS  3
#define ASC_SCSI_TIX_TYPE     uchar
#define ASC_ALL_DEVICE_BIT_SET  0xFF
#define ASC_SCSI_BIT_ID_TYPE  uchar
#define ASC_MAX_TID       7
#define ASC_MAX_LUN       7
#define ASC_SCSI_WIDTH_BIT_SET  0xFF
#define ASC_MAX_SENSE_LEN   32
#define ASC_MIN_SENSE_LEN   14
#define ASC_MAX_CDB_LEN     12
#define ASC_SCSI_RESET_HOLD_TIME_US  60
#define SCSICMD_TestUnitReady     0x00
#define SCSICMD_Rewind            0x01
#define SCSICMD_Rezero            0x01
#define SCSICMD_RequestSense      0x03
#define SCSICMD_Format            0x04
#define SCSICMD_FormatUnit        0x04
#define SCSICMD_Read6             0x08
#define SCSICMD_Write6            0x0A
#define SCSICMD_Seek6             0x0B
#define SCSICMD_Inquiry           0x12
#define SCSICMD_Verify6           0x13
#define SCSICMD_ModeSelect6       0x15
#define SCSICMD_ModeSense6        0x1A
#define SCSICMD_StartStopUnit     0x1B
#define SCSICMD_LoadUnloadTape    0x1B
#define SCSICMD_ReadCapacity      0x25
#define SCSICMD_Read10            0x28
#define SCSICMD_Write10           0x2A
#define SCSICMD_Seek10            0x2B
#define SCSICMD_Erase10           0x2C
#define SCSICMD_WriteAndVerify10  0x2E
#define SCSICMD_Verify10          0x2F
#define SCSICMD_WriteBuffer       0x3B
#define SCSICMD_ReadBuffer        0x3C