satafis_subr.c revision 1.3
1 /* $NetBSD: satafis_subr.c,v 1.3 2009/07/04 20:57:15 jakllsch Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 Jonathan A. Kollasch. 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 * Copyright (c) 2006 Manuel Bouyer. 30 * 31 * Redistribution and use in source and binary forms, with or without 32 * modification, are permitted provided that the following conditions 33 * are met: 34 * 1. Redistributions of source code must retain the above copyright 35 * notice, this list of conditions and the following disclaimer. 36 * 2. Redistributions in binary form must reproduce the above copyright 37 * notice, this list of conditions and the following disclaimer in the 38 * documentation and/or other materials provided with the distribution. 39 * 3. All advertising materials mentioning features or use of this software 40 * must display the following acknowledgement: 41 * This product includes software developed by Manuel Bouyer. 42 * 4. The name of the author may not be used to endorse or promote products 43 * derived from this software without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 * 56 */ 57 58 #include <sys/cdefs.h> 59 __KERNEL_RCSID(0, "$NetBSD: satafis_subr.c,v 1.3 2009/07/04 20:57:15 jakllsch Exp $"); 60 61 #include <sys/param.h> 62 #include <sys/systm.h> 63 64 #include <sys/disklabel.h> 65 66 #include <dev/ata/atareg.h> 67 #include <dev/ata/atavar.h> 68 69 #include <dev/ata/satafisreg.h> 70 #include <dev/ata/satafisvar.h> 71 72 #include <dev/ic/wdcreg.h> /* for WDCTL_4BIT */ 73 74 #include "atapibus.h" 75 76 void 77 satafis_rhd_construct_cmd(struct ata_command *ata_c, uint8_t *fis) 78 { 79 memset(fis, 0, RHD_FISLEN); 80 81 fis[fis_type] = RHD_FISTYPE; 82 fis[rhd_cdpmp] = 0x80; /* xxx magic */ 83 fis[rhd_command] = ata_c->r_command; 84 fis[rhd_features] = ata_c->r_features; 85 fis[rhd_sector] = ata_c->r_sector; 86 fis[rhd_cyl_lo] = ata_c->r_cyl & 0xff; 87 fis[rhd_cyl_hi] = (ata_c->r_cyl >> 8) & 0xff; 88 fis[rhd_dh] = ata_c->r_head & 0x0f; 89 fis[rhd_seccnt] = ata_c->r_count; 90 fis[rhd_control] = WDCTL_4BIT; 91 92 return; 93 } 94 95 void 96 satafis_rhd_construct_bio(struct ata_xfer *xfer, uint8_t *fis) 97 { 98 struct ata_bio *ata_bio = xfer->c_cmd; 99 int nblks; 100 101 nblks = xfer->c_bcount / ata_bio->lp->d_secsize; 102 103 memset(fis, 0, RHD_FISLEN); 104 105 fis[fis_type] = RHD_FISTYPE; 106 fis[rhd_cdpmp] = 0x80; /* xxx magic */ 107 if (ata_bio->flags & ATA_LBA48) { 108 fis[rhd_command] = (ata_bio->flags & ATA_READ) ? 109 WDCC_READDMA_EXT : WDCC_WRITEDMA_EXT; 110 } else { 111 fis[rhd_command] = 112 (ata_bio->flags & ATA_READ) ? WDCC_READDMA : WDCC_WRITEDMA; 113 } 114 fis[rhd_sector] = ata_bio->blkno & 0xff; 115 fis[rhd_cyl_lo] = (ata_bio->blkno >> 8) & 0xff; 116 fis[rhd_cyl_hi] = (ata_bio->blkno >> 16) & 0xff; 117 if (ata_bio->flags & ATA_LBA48) { 118 fis[rhd_dh] = WDSD_LBA; 119 fis[rhd_sector_exp] = (ata_bio->blkno >> 24) & 0xff; 120 fis[rhd_cyl_lo_exp] = (ata_bio->blkno >> 32) & 0xff; 121 fis[rhd_cyl_hi_exp] = (ata_bio->blkno >> 40) & 0xff; 122 } else { 123 fis[rhd_dh] = ((ata_bio->blkno >> 24) & 0x0f) | WDSD_LBA; 124 } 125 fis[rhd_seccnt] = nblks & 0xff; 126 fis[rhd_seccnt_exp] = (ata_bio->flags & ATA_LBA48) ? 127 ((nblks >> 8) & 0xff) : 0; 128 fis[rhd_control] = WDCTL_4BIT; 129 return; 130 } 131 132 #if NATAPIBUS > 0 133 void 134 satafis_rhd_construct_atapi(struct ata_xfer *xfer, uint8_t *fis) 135 { 136 memset(fis, 0, RHD_FISLEN); 137 138 fis[fis_type] = RHD_FISTYPE; 139 fis[rhd_cdpmp] = 0x80; /* xxx magic */ 140 fis[rhd_command] = ATAPI_PKT_CMD; 141 fis[rhd_features] = (xfer->c_flags & C_DMA) ? 142 ATAPI_PKT_CMD_FTRE_DMA : 0; 143 fis[rhd_dh] = WDSD_IBM; /* XXX or WDSD_LBA? */ 144 fis[rhd_control] = WDCTL_4BIT; 145 146 return; 147 } 148 #endif /* NATAPIBUS */ 149 150 void 151 satafis_rdh_parse(struct ata_channel *chp, uint8_t *fis) 152 { 153 #if 0 154 /* siisata doesn't do enough for this to work */ 155 KASSERT(fis[fis_type] == RDH_FISTYPE); 156 #endif 157 chp->ch_status = fis[rdh_status]; 158 chp->ch_error = fis[rdh_error]; 159 160 return; 161 } 162
Indexes created Fri Sep 26 08:10:20 GMT 2025