1*d02e022dStsutsui /* $NetBSD: iris_scsictl.c,v 1.1 2019/01/12 16:44:47 tsutsui Exp $ */
2*d02e022dStsutsui
3*d02e022dStsutsui /*
4*d02e022dStsutsui * Copyright (c) 2018 Naruaki Etomi
5*d02e022dStsutsui * All rights reserved.
6*d02e022dStsutsui *
7*d02e022dStsutsui * Redistribution and use in source and binary forms, with or without
8*d02e022dStsutsui * modification, are permitted provided that the following conditions
9*d02e022dStsutsui * are met:
10*d02e022dStsutsui * 1. Redistributions of source code must retain the above copyright
11*d02e022dStsutsui * notice, this list of conditions and the following disclaimer.
12*d02e022dStsutsui * 2. Redistributions in binary form must reproduce the above copyright
13*d02e022dStsutsui * notice, this list of conditions and the following disclaimer in the
14*d02e022dStsutsui * documentation and/or other materials provided with the distribution.
15*d02e022dStsutsui *
16*d02e022dStsutsui * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17*d02e022dStsutsui * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18*d02e022dStsutsui * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19*d02e022dStsutsui * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20*d02e022dStsutsui * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21*d02e022dStsutsui * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22*d02e022dStsutsui * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23*d02e022dStsutsui * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24*d02e022dStsutsui * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25*d02e022dStsutsui * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*d02e022dStsutsui */
27*d02e022dStsutsui
28*d02e022dStsutsui /*
29*d02e022dStsutsui * Silicon Graphics "IRIS" series MIPS processors machine bootloader.
30*d02e022dStsutsui * Front end of SCSI commands driver.
31*d02e022dStsutsui */
32*d02e022dStsutsui
33*d02e022dStsutsui #include <lib/libsa/stand.h>
34*d02e022dStsutsui
35*d02e022dStsutsui #include "iris_machdep.h"
36*d02e022dStsutsui #include "iris_scsivar.h"
37*d02e022dStsutsui #include "iris_scsicmd.h"
38*d02e022dStsutsui
39*d02e022dStsutsui int
scsi_test_unit_rdy(void)40*d02e022dStsutsui scsi_test_unit_rdy(void)
41*d02e022dStsutsui {
42*d02e022dStsutsui struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr];
43*d02e022dStsutsui static struct scsi_cdb6 cdb = { CMD_TEST_UNIT_READY };
44*d02e022dStsutsui
45*d02e022dStsutsui return wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), NULL, NULL);
46*d02e022dStsutsui }
47*d02e022dStsutsui
48*d02e022dStsutsui int
scsi_read_capacity(uint8_t * buf,size_t olen)49*d02e022dStsutsui scsi_read_capacity(uint8_t *buf, size_t olen)
50*d02e022dStsutsui {
51*d02e022dStsutsui size_t len = olen;
52*d02e022dStsutsui size_t *lenp;
53*d02e022dStsutsui lenp = &len;
54*d02e022dStsutsui struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr];
55*d02e022dStsutsui static struct scsi_cdb10 cdb = { CMD_READ_CAPACITY };
56*d02e022dStsutsui
57*d02e022dStsutsui return wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), buf, lenp);
58*d02e022dStsutsui }
59*d02e022dStsutsui
60*d02e022dStsutsui int
scsi_read(uint8_t * buf,size_t olen,daddr_t blk,u_int nblk)61*d02e022dStsutsui scsi_read(uint8_t *buf, size_t olen, daddr_t blk, u_int nblk)
62*d02e022dStsutsui {
63*d02e022dStsutsui size_t len = olen;
64*d02e022dStsutsui size_t *lenp;
65*d02e022dStsutsui lenp = &len;
66*d02e022dStsutsui struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr];
67*d02e022dStsutsui struct scsi_cdb10 cdb;
68*d02e022dStsutsui
69*d02e022dStsutsui memset(&cdb, 0, sizeof(cdb));
70*d02e022dStsutsui cdb.cmd = CMD_READ_EXT;
71*d02e022dStsutsui cdb.lbah = blk >> 24;
72*d02e022dStsutsui cdb.lbahm = blk >> 16;
73*d02e022dStsutsui cdb.lbalm = blk >> 8;
74*d02e022dStsutsui cdb.lbal = blk;
75*d02e022dStsutsui cdb.lenh = nblk >> (8 + DEV_BSHIFT);
76*d02e022dStsutsui cdb.lenl = nblk >> DEV_BSHIFT;
77*d02e022dStsutsui wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), buf, lenp);
78*d02e022dStsutsui
79*d02e022dStsutsui if (*lenp == olen)
80*d02e022dStsutsui return 1;
81*d02e022dStsutsui
82*d02e022dStsutsui return 0;
83*d02e022dStsutsui }
84*d02e022dStsutsui
85*d02e022dStsutsui int
scsi_write(uint8_t * buf,size_t olen,daddr_t blk,u_int nblk)86*d02e022dStsutsui scsi_write(uint8_t *buf, size_t olen, daddr_t blk, u_int nblk)
87*d02e022dStsutsui {
88*d02e022dStsutsui size_t len = olen;
89*d02e022dStsutsui size_t *lenp;
90*d02e022dStsutsui lenp = &len;
91*d02e022dStsutsui
92*d02e022dStsutsui struct wd33c93_softc *sc = &wd33c93_softc[scsi_ctlr];
93*d02e022dStsutsui struct scsi_cdb10 cdb;
94*d02e022dStsutsui
95*d02e022dStsutsui memset(&cdb, 0, sizeof(cdb));
96*d02e022dStsutsui cdb.cmd = CMD_WRITE_EXT;
97*d02e022dStsutsui cdb.lbah = blk >> 24;
98*d02e022dStsutsui cdb.lbahm = blk >> 16;
99*d02e022dStsutsui cdb.lbalm = blk >> 8;
100*d02e022dStsutsui cdb.lbal = blk;
101*d02e022dStsutsui cdb.lenh = nblk >> (8 + DEV_BSHIFT);
102*d02e022dStsutsui cdb.lenl = nblk >> DEV_BSHIFT;
103*d02e022dStsutsui wd33c93_go(sc, (uint8_t *)&cdb, sizeof(cdb), buf, lenp);
104*d02e022dStsutsui
105*d02e022dStsutsui if (*lenp == olen)
106*d02e022dStsutsui return 1;
107*d02e022dStsutsui
108*d02e022dStsutsui return 0;
109*d02e022dStsutsui }
110