qla1280.c

linux和2410结合开发 用他可以生成2410所需的zImage文件

/********************************************************************************
 *                  QLOGIC LINUX SOFTWARE
 *
 * QLogic ISP1x80/1x160 device driver for Linux 2.3.x (redhat 6.X).
 *
 * COPYRIGHT (C) 1999-2000 QLOGIC CORPORATION    
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the Qlogic's Linux Software License. See below.
 *
 * This program is WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistribution's or 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 ********************************************************************************/
 
/*****************************************************************************************
			QLOGIC CORPORATION SOFTWARE
           "GNU" GENERAL PUBLIC LICENSE
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                 AND MODIFICATION

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*******************************************************************************************/ 

/****************************************************************************
    Revision History:
    Rev. 3.00       Jan 17, 1999    DG  Qlogic
	   - Added 64-bit support.
    Rev. 2.07       Nov 9, 1999     DG  Qlogic
	   - Added new routine to set target parameters for ISP12160. 
    Rev. 2.06       Sept 10, 1999     DG  Qlogic
       - Added support for ISP12160 Ultra 3 chip.
    Rev. 2.03       August 3, 1999    Fred Lewis, Intel DuPont
	- Modified code to remove errors generated when compiling with
	  Cygnus IA64 Compiler.
        - Changed conversion of pointers to unsigned longs instead of integers.
        - Changed type of I/O port variables from uint32_t to unsigned long.
        - Modified OFFSET macro to work with 64-bit as well as 32-bit.
        - Changed sprintf and printk format specifiers for pointers to %p.
        - Changed some int to long type casts where needed in sprintf & printk.
        - Added l modifiers to sprintf and printk format specifiers for longs.
        - Removed unused local variables.
    Rev. 1.20       June 8, 1999      DG,  Qlogic
         Changes to support RedHat release 6.0 (kernel 2.2.5).  
       - Added SCSI exclusive access lock (io_request_lock) when accessing 
         the adapter.
       - Added changes for the new LINUX interface template. Some new error
         handling routines have been added to the template, but for now we
         will use the old ones.
    -   Initial Beta Release.  
*****************************************************************************/


#ifdef MODULE
#include <linux/module.h>
#endif

#define QLA1280_VERSION      " 3.00-Beta"

#include <stdarg.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/segment.h>
#include <asm/byteorder.h>
#include <linux/version.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/proc_fs.h>
#include <linux/blk.h>
#include <linux/tqueue.h>
/* MRS #include <linux/tasks.h> */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,95)
# include <linux/bios32.h>
#endif
#include "sd.h"
#include "scsi.h"
#include "hosts.h"
#define UNIQUE_FW_NAME
#include "qla1280.h"
#include "ql12160_fw.h"                     /* ISP RISC code */
#include "ql1280_fw.h"

#include <linux/stat.h>
#include <linux/slab.h>        /* for kmalloc() */


#ifndef KERNEL_VERSION
#  define KERNEL_VERSION(x,y,z) (((x)<<16)+((y)<<8)+(z))
#endif


/*
 * Compile time Options: 
 *            0 - Disable and 1 - Enable 
 */
#define  QLA1280_64BIT_SUPPORT         1   /* 64-bit Support */
#define  QL1280_TARGET_MODE_SUPPORT    0   /* Target mode support */
#define  WATCHDOGTIMER                 0
#define  MEMORY_MAPPED_IO              0
#define  DEBUG_QLA1280_INTR            0
#define  USE_NVRAM_DEFAULTS	       0
#define  DEBUG_PRINT_NVRAM             0
#define  LOADING_RISC_ACTIVITY         0
#define  AUTO_ESCALATE_RESET           0   /* Automatically escalate resets */
#define  AUTO_ESCALATE_ABORT           0   /* Automatically escalate aborts */
#define  STOP_ON_ERROR                 0   /* Stop on aborts and resets  */
#define  STOP_ON_RESET                 0 
#define  STOP_ON_ABORT                 0 
#undef   DYNAMIC_MEM_ALLOC

#define  DEBUG_QLA1280                 0    /* Debugging  */
/* #define CHECKSRBSIZE */

/*
 * These macros to assist programming
 */

#define	BZERO(ptr, amt)		memset(ptr, 0, amt)
#define	BCOPY(src, dst, amt)	memcpy(dst, src, amt)
#define	KMALLOC(siz)	kmalloc((siz), GFP_ATOMIC)
#define	KMFREE(ip,siz)	kfree((ip))
#define	SYS_DELAY(x)		udelay(x);barrier()
#define QLA1280_DELAY(sec)  mdelay(sec * 1000)
#define VIRT_TO_BUS(a) virt_to_bus((a))
#if  QLA1280_64BIT_SUPPORT
#if  BITS_PER_LONG <= 32
#define  VIRT_TO_BUS_LOW(a) (uint32_t)virt_to_bus((a))
#define  VIRT_TO_BUS_HIGH(a) (uint32_t)(0x0)
#else
#define  VIRT_TO_BUS_LOW(a) (uint32_t)(0xffffffff & virt_to_bus((a)))
#define  VIRT_TO_BUS_HIGH(a) (uint32_t)(0xffffffff & (virt_to_bus((a))>>32))
#endif
#endif  /* QLA1280_64BIT_SUPPORT */

#define STATIC     

#define NVRAM_DELAY() udelay(500) /* 2 microsecond delay */
void qla1280_device_queue_depth(scsi_qla_host_t *, Scsi_Device *);

#define  CACHE_FLUSH(a) (RD_REG_WORD(a))
#define  INVALID_HANDLE    (MAX_OUTSTANDING_COMMANDS+1)

#define  MSW(x)          (uint16_t)((uint32_t)(x) >> 16)
#define  LSW(x)          (uint16_t)(x)
#define  MSB(x)          (uint8_t)((uint16_t)(x) >> 8)
#define  LSB(x)          (uint8_t)(x)

#if  BITS_PER_LONG <= 32
#define  LS_64BITS(x) (uint32_t)(x)
#define  MS_64BITS(x) (uint32_t)(0x0)
#else
#define  LS_64BITS(x) (uint32_t)(0xffffffff & (x))
#define  MS_64BITS(x) (uint32_t)(0xffffffff & ((x)>>32) )
#endif

/*
 *  QLogic Driver Support Function Prototypes.
 */
STATIC void   qla1280_done(scsi_qla_host_t *, srb_t **, srb_t **);
STATIC void   qla1280_next(scsi_qla_host_t *, scsi_lu_t *, uint8_t);
STATIC void   qla1280_putq_t(scsi_lu_t *, srb_t *);
STATIC void   qla1280_done_q_put(srb_t *, srb_t **, srb_t **);
STATIC void qla1280_select_queue_depth(struct Scsi_Host *, Scsi_Device *);
#ifdef  QLA1280_UNUSED 
static void qla1280_dump_regs(struct Scsi_Host *host);
#endif
#if  STOP_ON_ERROR 
static void qla1280_panic(char *, struct Scsi_Host *host);
#endif
void qla1280_print_scsi_cmd(Scsi_Cmnd *cmd);
STATIC void qla1280_abort_queue_single(scsi_qla_host_t *,uint32_t,uint32_t,uint32_t,uint32_t);

STATIC int qla1280_return_status( sts_entry_t *sts, Scsi_Cmnd       *cp);
STATIC void qla1280_removeq(scsi_lu_t *q, srb_t *sp);
STATIC void qla1280_mem_free(scsi_qla_host_t *ha);
static void qla1280_do_dpc(void *p);
#ifdef  QLA1280_UNUSED 
static void qla1280_set_flags(char * s);
#endif
static char	*qla1280_get_token(char *, char *);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0)
STATIC inline void mdelay(int);
#endif
static inline void qla1280_enable_intrs(scsi_qla_host_t *);
static inline void qla1280_disable_intrs(scsi_qla_host_t *);

/*
 *  QLogic ISP1280 Hardware Support Function Prototypes.
 */
STATIC uint8_t   qla1280_initialize_adapter(struct scsi_qla_host   *ha);
STATIC uint8_t   qla1280_enable_tgt(scsi_qla_host_t *, uint8_t);
STATIC uint8_t   qla1280_isp_firmware(scsi_qla_host_t *);
STATIC uint8_t   qla1280_pci_config(scsi_qla_host_t *);
STATIC uint8_t   qla1280_chip_diag(scsi_qla_host_t *);
STATIC uint8_t   qla1280_setup_chip(scsi_qla_host_t *);
STATIC uint8_t   qla1280_init_rings(scsi_qla_host_t *);
STATIC uint8_t   qla1280_nvram_config(scsi_qla_host_t *);
STATIC uint8_t   qla1280_mailbox_command(scsi_qla_host_t *, uint8_t, uint16_t *);
STATIC uint8_t   qla1280_bus_reset(scsi_qla_host_t *, uint8_t);
STATIC uint8_t   qla1280_device_reset(scsi_qla_host_t *, uint8_t, uint32_t);
STATIC uint8_t   qla1280_abort_device(scsi_qla_host_t *, uint8_t, uint32_t, uint32_t);
STATIC uint8_t   qla1280_abort_command(scsi_qla_host_t *, srb_t *),
#if  QLA1280_64BIT_SUPPORT
                 qla1280_64bit_start_scsi(scsi_qla_host_t *, srb_t *),
#endif
                 qla1280_32bit_start_scsi(scsi_qla_host_t *, srb_t *),
                 qla1280_abort_isp(scsi_qla_host_t *);
STATIC void      qla1280_nv_write(scsi_qla_host_t *, uint16_t),
                 qla1280_nv_delay(scsi_qla_host_t *),
                 qla1280_poll(scsi_qla_host_t *),
                 qla1280_reset_adapter(scsi_qla_host_t *),
                 qla1280_marker(scsi_qla_host_t *, uint8_t, uint32_t, uint32_t, uint8_t),
                 qla1280_isp_cmd(scsi_qla_host_t *),
                 qla1280_isr(scsi_qla_host_t *, srb_t **, srb_t **),
                 qla1280_rst_aen(scsi_qla_host_t *),
                 qla1280_status_entry(scsi_qla_host_t *, sts_entry_t *, srb_t **,
                                      srb_t **),
                 qla1280_error_entry(scsi_qla_host_t *, response_t *, srb_t **,
                                     srb_t **),
                 qla1280_restart_queues(scsi_qla_host_t *),
                 qla1280_abort_queues(scsi_qla_host_t *);
STATIC uint16_t  qla1280_get_nvram_word(scsi_qla_host_t *, uint32_t),
                 qla1280_nvram_request(scsi_qla_host_t *, uint32_t),
                 qla1280_debounce_register(volatile uint16_t *);
STATIC request_t *qla1280_req_pkt(scsi_qla_host_t *);
int  qla1280_check_for_dead_scsi_bus(scsi_qla_host_t *ha, srb_t *sp);
STATIC uint8_t qla1280_mem_alloc(scsi_qla_host_t *ha);
STATIC uint8_t  qla1280_register_with_Linux(scsi_qla_host_t *ha, uint8_t maxchannels);