1/* $NetBSD: iris_scsictl.c,v 1.1 2019/01/12 16:44:47 tsutsui Exp $ */ 2 3/* 4 * Copyright (c) 2018 Naruaki Etomi 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28/* 29 * Silicon Graphics "IRIS" series MIPS processors machine bootloader. 30 * Front end of SCSI commands driver. 31 */ 32 33#include <lib/libsa/stand.h> 34 35#include "iris_machdep.h" 36#include "iris_scsivar.h" 37#include "iris_scsicmd.h" 38 39int 40scsi_test_unit_rdy(void) 41{ 42 struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr]; 43 static struct scsi_cdb6 cdb = { CMD_TEST_UNIT_READY }; 44 45 return wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), NULL, NULL); 46} 47 48int 49scsi_read_capacity(uint8_t *buf, size_t olen) 50{ 51 size_t len = olen; 52 size_t *lenp; 53 lenp = &len; 54 struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr]; 55 static struct scsi_cdb10 cdb = { CMD_READ_CAPACITY }; 56 57 return wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), buf, lenp); 58} 59 60int 61scsi_read(uint8_t *buf, size_t olen, daddr_t blk, u_int nblk) 62{ 63 size_t len = olen; 64 size_t *lenp; 65 lenp = &len; 66 struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr]; 67 struct scsi_cdb10 cdb; 68 69 memset(&cdb, 0, sizeof(cdb)); 70 cdb.cmd = CMD_READ_EXT; 71 cdb.lbah = blk >> 24; 72 cdb.lbahm = blk >> 16; 73 cdb.lbalm = blk >> 8; 74 cdb.lbal = blk; 75 cdb.lenh = nblk >> (8 + DEV_BSHIFT); 76 cdb.lenl = nblk >> DEV_BSHIFT; 77 wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), buf, lenp); 78 79 if (*lenp == olen) 80 return 1; 81 82 return 0; 83} 84 85int 86scsi_write(uint8_t *buf, size_t olen, daddr_t blk, u_int nblk) 87{ 88 size_t len = olen; 89 size_t *lenp; 90 lenp = &len; 91 92 struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr]; 93 struct scsi_cdb10 cdb; 94 95 memset(&cdb, 0, sizeof(cdb)); 96 cdb.cmd = CMD_WRITE_EXT; 97 cdb.lbah = blk >> 24; 98 cdb.lbahm = blk >> 16; 99 cdb.lbalm = blk >> 8; 100 cdb.lbal = blk; 101 cdb.lenh = nblk >> (8 + DEV_BSHIFT); 102 cdb.lenl = nblk >> DEV_BSHIFT; 103 wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), buf, lenp); 104 105 if (*lenp == olen) 106 return 1; 107 108 return 0; 109} 110