satafis_subr.c revision 1.7
1 /* $NetBSD: satafis_subr.c,v 1.7 2012/07/22 17:57:57 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 * 40 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 41 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 42 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 43 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 44 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 46 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 47 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 48 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 49 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 50 * 51 */ 52 53 #include <sys/cdefs.h> 54 __KERNEL_RCSID(0, "$NetBSD: satafis_subr.c,v 1.7 2012/07/22 17:57:57 jakllsch Exp $"); 55 56 #include <sys/param.h> 57 #include <sys/systm.h> 58 59 #include <sys/disklabel.h> 60 61 #include <dev/ata/atareg.h> 62 #include <dev/ata/atavar.h> 63 64 #include <dev/ata/satafisreg.h> 65 #include <dev/ata/satafisvar.h> 66 67 #include "atapibus.h" 68 69 void 70 satafis_rhd_construct_cmd(struct ata_command *ata_c, uint8_t *fis) 71 { 72 73 memset(fis, 0, RHD_FISLEN); 74 75 fis[fis_type] = RHD_FISTYPE; 76 fis[rhd_c] = RHD_C; 77 fis[rhd_command] = ata_c->r_command; 78 fis[rhd_features0] = (ata_c->r_features >> 0) & 0xff; 79 80 fis[rhd_lba0] = (ata_c->r_lba >> 0) & 0xff; 81 fis[rhd_lba1] = (ata_c->r_lba >> 8) & 0xff; 82 fis[rhd_lba2] = (ata_c->r_lba >> 16) & 0xff; 83 if ((ata_c->flags & AT_LBA48) != 0) { 84 fis[rhd_dh] = ata_c->r_device; 85 fis[rhd_lba3] = (ata_c->r_lba >> 24) & 0xff; 86 fis[rhd_lba4] = (ata_c->r_lba >> 32) & 0xff; 87 fis[rhd_lba5] = (ata_c->r_lba >> 40) & 0xff; 88 fis[rhd_features1] = (ata_c->r_features >> 8) & 0xff; 89 } else { 90 fis[rhd_dh] = (ata_c->r_device & 0xf0) | 91 ((ata_c->r_lba >> 24) & 0x0f); 92 } 93 94 fis[rhd_count0] = (ata_c->r_count >> 0) & 0xff; 95 if ((ata_c->flags & AT_LBA48) != 0) { 96 fis[rhd_count1] = (ata_c->r_count >> 8) & 0xff; 97 } 98 } 99 100 void 101 satafis_rhd_construct_bio(struct ata_xfer *xfer, uint8_t *fis) 102 { 103 struct ata_bio *ata_bio = xfer->c_cmd; 104 int nblks; 105 106 nblks = xfer->c_bcount / ata_bio->lp->d_secsize; 107 108 memset(fis, 0, RHD_FISLEN); 109 110 fis[fis_type] = RHD_FISTYPE; 111 fis[rhd_c] = RHD_C; 112 if (ata_bio->flags & ATA_LBA48) { 113 fis[rhd_command] = (ata_bio->flags & ATA_READ) ? 114 WDCC_READDMA_EXT : WDCC_WRITEDMA_EXT; 115 } else { 116 fis[rhd_command] = 117 (ata_bio->flags & ATA_READ) ? WDCC_READDMA : WDCC_WRITEDMA; 118 } 119 120 fis[rhd_lba0] = (ata_bio->blkno >> 0) & 0xff; 121 fis[rhd_lba1] = (ata_bio->blkno >> 8) & 0xff; 122 fis[rhd_lba2] = (ata_bio->blkno >> 16) & 0xff; 123 if ((ata_bio->flags & ATA_LBA48) != 0) { 124 fis[rhd_dh] = WDSD_LBA; 125 fis[rhd_lba3] = (ata_bio->blkno >> 24) & 0xff; 126 fis[rhd_lba4] = (ata_bio->blkno >> 32) & 0xff; 127 fis[rhd_lba5] = (ata_bio->blkno >> 40) & 0xff; 128 } else { 129 fis[rhd_dh] = ((ata_bio->blkno >> 24) & 0x0f) | 130 (((ata_bio->flags & ATA_LBA) != 0) ? WDSD_LBA : 0); 131 } 132 133 fis[rhd_count0] = nblks & 0xff; 134 if ((ata_bio->flags & ATA_LBA48) != 0) { 135 fis[rhd_count1] = (nblks >> 8) & 0xff; 136 } 137 } 138 139 #if NATAPIBUS > 0 140 void 141 satafis_rhd_construct_atapi(struct ata_xfer *xfer, uint8_t *fis) 142 { 143 144 memset(fis, 0, RHD_FISLEN); 145 146 fis[fis_type] = RHD_FISTYPE; 147 fis[rhd_c] = RHD_C; 148 fis[rhd_command] = ATAPI_PKT_CMD; 149 fis[rhd_features0] = (xfer->c_flags & C_DMA) ? 150 ATAPI_PKT_CMD_FTRE_DMA : 0; 151 } 152 #endif /* NATAPIBUS */ 153 154 void 155 satafis_rdh_parse(struct ata_channel *chp, const uint8_t *fis) 156 { 157 158 chp->ch_status = fis[rdh_status]; 159 chp->ch_error = fis[rdh_error]; 160 } 161 162 void 163 satafis_rdh_cmd_readreg(struct ata_command *ata_c, const uint8_t *fis) 164 { 165 166 ata_c->r_lba = (uint64_t)fis[rdh_lba0] << 0; 167 ata_c->r_lba |= (uint64_t)fis[rdh_lba1] << 8; 168 ata_c->r_lba |= (uint64_t)fis[rdh_lba2] << 16; 169 if ((ata_c->flags & AT_LBA48) != 0) { 170 ata_c->r_lba |= (uint64_t)fis[rdh_lba3] << 24; 171 ata_c->r_lba |= (uint64_t)fis[rdh_lba4] << 32; 172 ata_c->r_lba |= (uint64_t)fis[rdh_lba5] << 40; 173 ata_c->r_device = fis[rdh_dh]; 174 } else { 175 ata_c->r_lba |= (uint64_t)(fis[rdh_dh] & 0x0f) << 24; 176 ata_c->r_device = fis[rdh_dh] & 0xf0; 177 } 178 179 ata_c->r_count = fis[rdh_count0] << 0; 180 if ((ata_c->flags & AT_LBA48) != 0) { 181 ata_c->r_count |= fis[rdh_count1] << 8; 182 } 183 184 ata_c->r_error = fis[rdh_error]; 185 ata_c->r_status = fis[rdh_status]; 186 } 187
Indexes created Wed Sep 24 22:09:59 GMT 2025