linux-imx

/*

 * Generic Macintosh NCR5380 driver

 *

 * Copyright 1998, Michael Schmitz <mschmitz@lbl.gov>

 *

 * derived in part from:

 */

/*

 * Generic Generic NCR5380 driver

 *

 * Copyright 1995, Russell King

 */

​

#include <linux/types.h>

#include <linux/module.h>

#include <linux/ioport.h>

#include <linux/init.h>

#include <linux/blkdev.h>

#include <linux/interrupt.h>

#include <linux/platform_device.h>

​

#include <asm/hwtest.h>

#include <asm/io.h>

#include <asm/macints.h>

#include <asm/setup.h>

​

#include <scsi/scsi_host.h>

​

/* Definitions for the core NCR5380 driver. */

​

#define NCR5380_implementation_fields   int pdma_residual

​

#define NCR5380_read(reg)           in_8(hostdata->io + ((reg) << 4))

#define NCR5380_write(reg, value)   out_8(hostdata->io + ((reg) << 4), value)

​

#define NCR5380_dma_xfer_len            macscsi_dma_xfer_len

#define NCR5380_dma_recv_setup          macscsi_pread

#define NCR5380_dma_send_setup          macscsi_pwrite

#define NCR5380_dma_residual            macscsi_dma_residual

​

#define NCR5380_intr                    macscsi_intr

#define NCR5380_queue_command           macscsi_queue_command

#define NCR5380_abort                   macscsi_abort

#define NCR5380_host_reset              macscsi_host_reset

#define NCR5380_info                    macscsi_info

​

#include "NCR5380.h"

​

static int setup_can_queue = -1;

module_param(setup_can_queue, int, 0);

static int setup_cmd_per_lun = -1;

module_param(setup_cmd_per_lun, int, 0);

static int setup_sg_tablesize = -1;

module_param(setup_sg_tablesize, int, 0);

static int setup_use_pdma = -1;

module_param(setup_use_pdma, int, 0);

static int setup_hostid = -1;

module_param(setup_hostid, int, 0);

static int setup_toshiba_delay = -1;

module_param(setup_toshiba_delay, int, 0);

​

#ifndef MODULE

static int __init mac_scsi_setup(char *str)

{

    int ints[8];

​

    (void)get_options(str, ARRAY_SIZE(ints), ints);

​

    if (ints[0] < 1) {

        pr_err("Usage: mac5380=<can_queue>[,<cmd_per_lun>[,<sg_tablesize>[,<hostid>[,<use_tags>[,<use_pdma>[,<toshiba_delay>]]]]]]\n");

        return 0;

    }

    if (ints[0] >= 1)

        setup_can_queue = ints[1];

    if (ints[0] >= 2)

        setup_cmd_per_lun = ints[2];

    if (ints[0] >= 3)

        setup_sg_tablesize = ints[3];

    if (ints[0] >= 4)

        setup_hostid = ints[4];

    /* ints[5] (use_tagged_queuing) is ignored */

    if (ints[0] >= 6)

        setup_use_pdma = ints[6];

    if (ints[0] >= 7)

        setup_toshiba_delay = ints[7];

    return 1;

}

​

__setup("mac5380=", mac_scsi_setup);

#endif /* !MODULE */

​

/* Pseudo DMA asm originally by Ove Edlund */