| 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 | |