/*      $NetBSD: util.c,v 1.7 2009/04/17 04:03:39 lukem Exp $   */

/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* 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.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

/*-
* Copyright (c) 1999 Michael Smith
* All rights reserved.
*
* 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.
* 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.
*
* 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.
*/

#ifndef lint
#include <sys/cdefs.h>
__RCSID("$NetBSD: util.c,v 1.7 2009/04/17 04:03:39 lukem Exp $");
#endif /* not lint */

#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/queue.h>

#include <dev/ic/mlxreg.h>
#include <dev/ic/mlxio.h>

#include <dev/scsipi/scsipi_all.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <err.h>

#include "extern.h"

int
mlx_command(struct mlx_usercommand *mu, int bomb)
{
       int rv;

       if ((rv = ioctl(mlxfd, MLX_COMMAND, mu)) != 0 && bomb)
               err(EXIT_FAILURE, "cmd 0x%02x failed",
                   mu->mu_command[0]);

       return (rv);
}

void
mlx_enquiry(struct mlx_enquiry2 *enq)
{
       struct mlx_usercommand mu;
       struct mlx_enquiry_old meo;

       memset(&mu, 0, sizeof(mu));

       mu.mu_datasize = sizeof(*enq);
       mu.mu_buf = enq;
       mu.mu_bufptr = 8;
       mu.mu_bufdir = MU_XFER_IN;
       mu.mu_command[0] = MLX_CMD_ENQUIRY2;

       mlx_command(&mu, 1);

       /*
        * If we get back a firmware major of 0, this is (probably) an old
        * controller, so we need to pull the firmware version from the old
        * enquiry structure.
        */
       if (enq->me_firmware_id[0] == 0) {
               memset(&mu, 0, sizeof(mu));

               mu.mu_datasize = sizeof(meo);
               mu.mu_buf = &meo;
               mu.mu_bufptr = 8;
               mu.mu_bufdir = MU_XFER_IN;
               mu.mu_command[0] = MLX_CMD_ENQUIRY_OLD;

               mlx_command(&mu, 1);

               enq->me_firmware_id[0] = meo.me_fwmajor;
               enq->me_firmware_id[1] = meo.me_fwminor;
               enq->me_firmware_id[2] = 0;
               enq->me_firmware_id[3] = '0';
       }
}

void
mlx_configuration(struct mlx_core_cfg *cfg, int wr)
{
       struct mlx_usercommand mu;

       memset(&mu, 0, sizeof(mu));

       mu.mu_datasize = sizeof(*cfg);
       mu.mu_buf = cfg;
       mu.mu_bufptr = 8;
       mu.mu_bufdir = (wr ? MU_XFER_OUT : MU_XFER_IN);
       mu.mu_command[0] = (wr ? MLX_CMD_WRITE_CONFIG : MLX_CMD_READ_CONFIG);

       mlx_command(&mu, 1);
}

int
mlx_get_device_state(int chan, int targ, struct mlx_phys_drv *pd)
{
       struct mlx_usercommand mu;

       memset(&mu, 0, sizeof(mu));

       mu.mu_datasize = sizeof(*pd);
       mu.mu_buf = pd;
       mu.mu_bufptr = 8;
       mu.mu_bufdir = MU_XFER_IN;
       mu.mu_command[0] = MLX_CMD_DEVICE_STATE;
       mu.mu_command[2] = chan;
       mu.mu_command[3] = targ;

       return (mlx_command(&mu, 0));
}

int
mlx_scsi_inquiry(int chan, int targ, char **vendor, char **device,
                char **revision)
{
       struct mlx_usercommand mu;
       static struct {
               struct  mlx_dcdb dcdb;
               struct  scsipi_inquiry_data inq;
       } __packed dcdb_cmd;
       struct scsipi_inquiry *inq_cmd;
       int rv;

       inq_cmd = (struct scsipi_inquiry *)&dcdb_cmd.dcdb.dcdb_cdb[0];

       memset(&mu, 0, sizeof(mu));
       mu.mu_datasize = sizeof(dcdb_cmd);
       mu.mu_buf = &dcdb_cmd;
       mu.mu_command[0] = MLX_CMD_DIRECT_CDB;
       mu.mu_bufdir = MU_XFER_IN | MU_XFER_OUT;

       memset(&dcdb_cmd, 0, sizeof(dcdb_cmd));
       dcdb_cmd.dcdb.dcdb_target = (chan << 4) | targ;
       dcdb_cmd.dcdb.dcdb_flags = MLX_DCDB_DATA_IN | MLX_DCDB_TIMEOUT_10S;
       dcdb_cmd.dcdb.dcdb_datasize = sizeof(dcdb_cmd.inq);
       dcdb_cmd.dcdb.dcdb_length = 6;
       dcdb_cmd.dcdb.dcdb_sense_length = 40;

       inq_cmd->opcode = INQUIRY;
       inq_cmd->length = sizeof(dcdb_cmd.inq);

       if ((rv = mlx_command(&mu, 0)) == 0) {
               *vendor = &dcdb_cmd.inq.vendor[0];
               *device = &dcdb_cmd.inq.product[0];
               *revision = &dcdb_cmd.inq.revision[0];
       }

       return (rv);
}

void
mlx_print_phys_drv(struct mlx_phys_drv *pd, int chn, int targ,
                  const char *prefix)
{
       const char *type;
       char *device, *vendor, *revision;

       switch (pd->pd_flags2 & 0x03) {
               case MLX_PHYS_DRV_DISK:
               type = "disk";
               break;

       case MLX_PHYS_DRV_SEQUENTIAL:
               type = "tape";
               break;

       case MLX_PHYS_DRV_CDROM:
               type= "cdrom";
               break;

       case MLX_PHYS_DRV_OTHER:
       default:
               type = "unknown";
               break;
       }

       printf("%s%s%02d%02d ", prefix, type, chn, targ);

       switch (pd->pd_status) {
       case MLX_PHYS_DRV_DEAD:
               printf(" (dead)    ");
               break;

       case MLX_PHYS_DRV_WRONLY:
               printf(" (write-only) ");
               break;

       case MLX_PHYS_DRV_ONLINE:
               printf(" (online)        ");
               break;

       case MLX_PHYS_DRV_STANDBY:
               printf(" (standby)      ");
               break;

       default:
               printf(" (0x%02x)   ", pd->pd_status);
               break;
       }

       printf("\n");
       if (verbosity == 0)
               return;

       printf("%s   ", prefix);
       if (!mlx_scsi_inquiry(chn, targ, &vendor, &device, &revision))
               printf("'%8.8s' '%16.16s' '%4.4s'", vendor, device, revision);
       else
               printf("<IDENTIFY FAILED>");

       printf(" %dMB ", pd->pd_config_size / 2048);

       if ((pd->pd_flags2 & MLX_PHYS_DRV_FAST20) != 0)
               printf(" ultra");
       else if ((pd->pd_flags2 & MLX_PHYS_DRV_FAST) != 0)
               printf(" fast");

       if ((pd->pd_flags2 & MLX_PHYS_DRV_WIDE) != 0)
               printf(" wide");

       if ((pd->pd_flags2 & MLX_PHYS_DRV_SYNC) != 0)
               printf(" sync");

       if ((pd->pd_flags2 & MLX_PHYS_DRV_TAG) != 0)
               printf(" tag-enabled");

       printf("\n");
}

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