src/add-ons/kernel/generic/scsi_periph/sync.cpp

   1 /*
   2  * Copyright 2007, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Bruno Albuquerque, bga@bug-br.org.br
   7  *
   8  * Copyright 2004-2006 yellowTAB GMbH. This file is
   9  * based on work I did for ZETA while employed by
  10  * yellowTAB and is used under permission.
  11  */
  12
  13
  14 #include "scsi_periph_int.h"
  15
  16 #include <scsi_cmds.h>
  17
  18 #include <string.h>
  19
  20
  21 err_res
  22 periph_synchronize_cache(scsi_periph_device_info *device, scsi_ccb *request)
  23 {
  24         scsi_cmd_sync_cache* cmd = (scsi_cmd_sync_cache*)request->cdb;
  25
  26         request->flags = SCSI_DIR_NONE;
  27
  28         request->data = NULL;
  29         request->sg_list = NULL;
  30         request->data_length = 0;
  31         request->timeout = device->std_timeout;
  32         request->sort = -1;
  33
  34         memset(cmd, 0, sizeof(*cmd));
  35
  36         cmd->opcode     = SCSI_OP_SYNCHRONIZE_CACHE;
  37         cmd->immediately = 0;
  38
  39         // TODO: Maybe we will actually want to set this one day...
  40         cmd->block_count = 0;
  41
  42         request->cdb_length = sizeof(*cmd);
  43
  44         device->scsi->sync_io(request);
  45
  46         return periph_check_error(device, request);
  47 }