/*- * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * The full GNU General Public License is included in this distribution * in the file called LICENSE.GPL. * * BSD LICENSE * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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 COPYRIGHT HOLDERS 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 COPYRIGHT * OWNER 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. */ #include __FBSDID("$FreeBSD$"); /** * @file * @brief This file contains the implementation to translate * SCSI Read Buffer command based on the SAT spec. */ #if !defined(DISABLE_SATI_READ_BUFFER) #include #include #include /** * @brief This method will translate the SCSI Read Buffer command * into a corresponding ATA Read Buffer command. * For more information on the parameters passed to this method, * please reference sati_translate_command(). * * @return Indicates if the command translation succeeded. * @retval SATI_SUCCESS indicates that the translation was supported and occurred * without error. * @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if * there is a translation failure. * @retval SATI_COMPLETE indicates that the translation was supported, occurred without * error, and no additional translation is necessary. */ SATI_STATUS sati_read_buffer_translate_command( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * scsi_io, void * ata_io ) { U8 * cdb = sati_cb_get_cdb_address(scsi_io); SATI_STATUS status = SATI_FAILURE; U32 allocation_length; U32 buffer_offset; allocation_length = ((sati_get_cdb_byte(cdb, 6) << 16) | (sati_get_cdb_byte(cdb, 7) << 8) | (sati_get_cdb_byte(cdb, 8))); buffer_offset = ((sati_get_cdb_byte(cdb, 3) << 16) | (sati_get_cdb_byte(cdb, 4) << 8) | (sati_get_cdb_byte(cdb, 5))); sequence->allocation_length = allocation_length; switch(sati_get_cdb_byte(cdb, 1)) { case SATI_READ_BUFFER_MODE_DATA: if((allocation_length == 512) && (buffer_offset == 0) && (sati_get_cdb_byte(cdb, 2) == 0)) { sati_ata_read_buffer_construct(ata_io, sequence); sequence->type = SATI_SEQUENCE_READ_BUFFER; sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE; status = SATI_SUCCESS; } else { sati_scsi_sense_data_construct( sequence, scsi_io, SCSI_STATUS_CHECK_CONDITION, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INVALID_FIELD_IN_CDB, SCSI_ASCQ_INVALID_FIELD_IN_CDB ); sequence->state = SATI_SEQUENCE_STATE_FINAL; status = SATI_FAILURE_CHECK_RESPONSE_DATA; } break; case SATI_READ_BUFFER_MODE_DESCRIPTOR: //allocation legnth must be at least four to return translated data if(allocation_length < 4) { sati_scsi_sense_data_construct( sequence, scsi_io, SCSI_STATUS_CHECK_CONDITION, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INVALID_FIELD_IN_CDB, SCSI_ASCQ_INVALID_FIELD_IN_CDB ); sequence->state = SATI_SEQUENCE_STATE_FINAL; status = SATI_FAILURE_CHECK_RESPONSE_DATA; } else { //figure out if we support other buffer id's sati_set_data_byte(sequence, scsi_io, 0, 0x09); //offset boundary sati_set_data_byte(sequence, scsi_io, 1, 0x00); sati_set_data_byte(sequence, scsi_io, 2, 0x02); //buffer capacity 0x200 sati_set_data_byte(sequence, scsi_io, 3, 0x00); sequence->state = SATI_SEQUENCE_STATE_FINAL; status = SATI_COMPLETE; } break; default: //Unspecified sat2v7, returning invalid cdb sati_scsi_sense_data_construct( sequence, scsi_io, SCSI_STATUS_CHECK_CONDITION, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INVALID_FIELD_IN_CDB, SCSI_ASCQ_INVALID_FIELD_IN_CDB ); sequence->state = SATI_SEQUENCE_STATE_FINAL; status = SATI_FAILURE_CHECK_RESPONSE_DATA; } return status; } /** * @brief This method will complete the Read Buffer Translation by copying the ATA response data into the SCSI request DATA buffer. * For more information on the parameters passed to this method, * please reference sati_translate_command(). * * @return Indicates if the command translation succeeded. * @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if * there is a translation failure. * @retval SATI_COMPLETE indicates that the translation was supported, occurred without * error, and no additional translation is necessary. */ SATI_STATUS sati_read_buffer_translate_response( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * scsi_io, void * ata_io ) { U8 * register_fis = sati_cb_get_d2h_register_fis_address(ata_io); U8 ata_status = (U8) sati_get_ata_status(register_fis); SATI_STATUS status = SATI_COMPLETE; if (ata_status & ATA_STATUS_REG_ERROR_BIT) { sati_scsi_sense_data_construct( sequence, scsi_io, SCSI_STATUS_CHECK_CONDITION, SCSI_SENSE_ABORTED_COMMAND, SCSI_ASC_NO_ADDITIONAL_SENSE, SCSI_ASCQ_NO_ADDITIONAL_SENSE ); status = SATI_FAILURE_CHECK_RESPONSE_DATA; } else { void * ata_data = sati_cb_get_ata_data_address(ata_io); if(ata_data == NULL) { status = SATI_FAILURE; } else { //copy ATA data into SCSI data buffer sati_copy_data( sequence, scsi_io, 0, ata_data, 512 ); } } sequence->state = SATI_SEQUENCE_STATE_FINAL; return status; } #endif //!defined(DISABLE_SATI_READ_BUFFER)