/*- * 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 all of the method implementations that * can be utilized by a user to perform SCSI-to-ATA Translation. * SATI adheres to the www.t10.org SAT specification. * * For situations where compliance is not observed, the SATI will * return an error indication (most likely INVALID FIELD IN CDB sense data). */ #include #include #include #include #include #include #include #include //****************************************************************************** //* P U B L I C M E T H O D S //****************************************************************************** SATI_STATUS sati_atapi_translate_command( SATI_TRANSLATOR_SEQUENCE_T * sequence, SATI_DEVICE_T * sati_device, void * scsi_io, void * atapi_io ) { SATI_STATUS status; U8 * cdb = sati_cb_get_cdb_address(scsi_io); SATA_FIS_REG_H2D_T * register_fis = (SATA_FIS_REG_H2D_T *)sati_cb_get_h2d_register_fis_address(atapi_io); U8 io_direction = SATI_DATA_DIRECTION_IN; //No sense response has been set for the translation sequence yet sequence->is_sense_response_set = FALSE; // Default to no translation response required sequence->is_translate_response_required = FALSE; sequence->number_data_bytes_set = 0; sequence->device = sati_device; sequence->command_specific_data.scratch = 0; sati_cb_get_data_direction(scsi_io, &io_direction); //set sat protocol. if (io_direction == SATI_DATA_DIRECTION_NONE) sequence->protocol = SAT_PROTOCOL_PACKET_NON_DATA; else if (io_direction == SATI_DATA_DIRECTION_IN) sequence->protocol = SAT_PROTOCOL_PACKET_DMA_DATA_IN; else if (io_direction == SATI_DATA_DIRECTION_OUT) sequence->protocol = SAT_PROTOCOL_PACKET_DMA_DATA_OUT; // We don't send Report Luns command out. if (sati_get_cdb_byte(cdb, 0) == SCSI_REPORT_LUNS) { status = sati_report_luns_translate_command( sequence, scsi_io, atapi_io ); } else if (sati_cb_get_lun(scsi_io) != 0) { sati_scsi_sense_data_construct( sequence, scsi_io, SCSI_STATUS_CHECK_CONDITION, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_LOGICAL_UNIT_NOT_SUPPORTED, 0 ); status = SATI_FAILURE_CHECK_RESPONSE_DATA; } else { if (sequence->state == SATI_SEQUENCE_STATE_INCOMPLETE) { //Request Sense command is required. U8 request_sense_cdb[SATI_ATAPI_REQUEST_SENSE_CDB_LENGTH] = {0x3, 0x0, 0x0, 0x0, 0x12, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}; //set the sequence->protocol to DATA_IN anyway; sequence->protocol = SAT_PROTOCOL_PACKET_DMA_DATA_IN; //set the cdb for Request Sense using command_specific_data field. memcpy(sequence->command_specific_data.sati_atapi_data.request_sense_cdb, request_sense_cdb, SATI_ATAPI_REQUEST_SENSE_CDB_LENGTH ); } //build Packet Fis for any other command translation. register_fis->command = ATA_PACKET; register_fis->features |= ATA_PACKET_FEATURE_DMA; register_fis->fis_type = SATA_FIS_TYPE_REGH2D; register_fis->command_flag = 1; status = SATI_SUCCESS; } return status; } SATI_STATUS sati_atapi_translate_command_response( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * scsi_io, void * atapi_io ) { SATI_STATUS status = SATI_COMPLETE; U8 * register_fis = sati_cb_get_d2h_register_fis_address(atapi_io); U8 ata_status; /** * If the device fault bit is set in the status register, then * set the sense data and return. */ ata_status = (U8) sati_get_ata_status(register_fis); if (ata_status & ATA_STATUS_REG_DEVICE_FAULT_BIT) { sati_scsi_sense_data_construct( sequence, scsi_io, SCSI_STATUS_CHECK_CONDITION, SCSI_SENSE_HARDWARE_ERROR, SCSI_ASC_INTERNAL_TARGET_FAILURE, SCSI_ASCQ_INTERNAL_TARGET_FAILURE ); sequence->device->state = SATI_DEVICE_STATE_DEVICE_FAULT_OCCURRED; return SATI_FAILURE_CHECK_RESPONSE_DATA; } else if (ata_status & ATA_STATUS_REG_ERROR_BIT) { //reset the register_fis. memset(register_fis, 0, sizeof(SATA_FIS_REG_D2H_T)); //Internal Request Sense command is needed. sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE; return SATI_SEQUENCE_INCOMPLETE; } return status; } void sati_atapi_translate_request_sense_response( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * scsi_io, void * atapi_io ) { //sense data is already in place. SCI_SSP_RESPONSE_IU_T * rsp_iu = (SCI_SSP_RESPONSE_IU_T*) sati_cb_get_response_iu_address(scsi_io); sati_scsi_common_response_iu_construct( rsp_iu, SCSI_STATUS_CHECK_CONDITION, sati_scsi_get_sense_data_length(sequence, scsi_io), SCSI_RESPONSE_DATA_PRES_SENSE_DATA ); sequence->is_sense_response_set = TRUE; sequence->state = SATI_SEQUENCE_STATE_FINAL; } U32 sati_atapi_translate_number_of_bytes_transferred( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * scsi_io, void * atapi_io ) { U8* cdb = sati_cb_get_cdb_address(scsi_io); U8 response_data; U32 data_length = 0; switch(cdb[0]) { case SCSI_MODE_SENSE_10: sati_cb_get_data_byte(scsi_io, 1, &response_data); data_length = response_data+2; break; case 0x51: //READ DISC INFORMATION sati_cb_get_data_byte(scsi_io, 1, &response_data); data_length = response_data+2; break; default: break; } return data_length; }