diff options
Diffstat (limited to 'scsi/scsi_comm.c')
| -rw-r--r-- | scsi/scsi_comm.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/scsi/scsi_comm.c b/scsi/scsi_comm.c deleted file mode 100644 index 1f0095a9..00000000 --- a/scsi/scsi_comm.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1991,1990 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ -/* - * File: scsi_comm.c - * Author: Alessandro Forin, Carnegie Mellon University - * Date: 10/90 - * - * Middle layer of the SCSI driver: SCSI protocol implementation - * - * This file contains code for SCSI commands for COMMUNICATION devices. - */ - -#include <mach/std_types.h> -#include <scsi/compat_30.h> - -#include <scsi/scsi.h> -#include <scsi/scsi_defs.h> - -#if (NSCSI > 0) - -char *sccomm_name( - boolean_t internal) -{ - return internal ? "cz" : "comm"; -} - -void scsi_get_message( - register target_info_t *tgt, - io_req_t ior) -{ - scsi_cmd_read_t *cmd; - register unsigned len, max; - - max = scsi_softc[(unsigned char)tgt->masterno]->max_dma_data; - - len = ior->io_count; - if (len > max) { - ior->io_residual = len - max; - len = max; - } - - cmd = (scsi_cmd_read_t*) (tgt->cmd_ptr); - cmd->scsi_cmd_code = SCSI_CMD_GET_MESSAGE; - cmd->scsi_cmd_lun_and_lba1 = tgt->lun << SCSI_LUN_SHIFT; - cmd->scsi_cmd_lba2 = len >> 16; - cmd->scsi_cmd_lba3 = len >> 8; - cmd->scsi_cmd_xfer_len = len; - cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ - - tgt->cur_cmd = SCSI_CMD_GET_MESSAGE; - - scsi_go(tgt, sizeof(*cmd), len, FALSE); -} - -void scsi_send_message( - register target_info_t *tgt, - io_req_t ior) -{ - scsi_cmd_write_t *cmd; - register unsigned len, max; - - len = ior->io_count; - max = scsi_softc[(unsigned char)tgt->masterno]->max_dma_data; - - if (len > max) { - ior->io_residual = len - max; - len = max; - } - - cmd = (scsi_cmd_write_t*) (tgt->cmd_ptr); - cmd->scsi_cmd_code = SCSI_CMD_SEND_MESSAGE; - cmd->scsi_cmd_lun_and_lba1 = tgt->lun << SCSI_LUN_SHIFT; - cmd->scsi_cmd_lba2 = len >> 16; - cmd->scsi_cmd_lba3 = len >> 8; - cmd->scsi_cmd_xfer_len = len; - cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ - - tgt->cur_cmd = SCSI_CMD_SEND_MESSAGE; - - scsi_go(tgt, sizeof(*cmd), 0, FALSE); -} - - -#if 0 -/* For now, these are not needed */ -scsi_get_message_long -scsi_get_message_vlong -scsi_send_message_long -scsi_send_message_vlong -#endif - -#endif /* NSCSI > 0 */ |