satafis_subr.c revision 1.5
1 /* $NetBSD: satafis_subr.c,v 1.5 2010/04/07 17:51:16 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 1.5 2010/04/07 17:51:16 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 memset(fis, 0, RHD_FISLEN); 73 74 fis[fis_type] = RHD_FISTYPE; 75 fis[rhd_c] = RHD_C; 76 fis[rhd_command] = ata_c->r_command; 77 fis[rhd_features] = ata_c->r_features; 78 fis[rhd_sector] = ata_c->r_sector; 79 fis[rhd_cyl_lo] = ata_c->r_cyl & 0xff; 80 fis[rhd_cyl_hi] = (ata_c->r_cyl >> 8) & 0xff; 81 fis[rhd_dh] = ata_c->r_head & 0x0f; 82 fis[rhd_seccnt] = ata_c->r_count; 83 } 84 85 void 86 satafis_rhd_construct_bio(struct ata_xfer *xfer, uint8_t *fis) 87 { 88 struct ata_bio *ata_bio = xfer->c_cmd; 89 int nblks; 90 91 nblks = xfer->c_bcount / ata_bio->lp->d_secsize; 92 93 memset(fis, 0, RHD_FISLEN); 94 95 fis[fis_type] = RHD_FISTYPE; 96 fis[rhd_c] = RHD_C; 97 if (ata_bio->flags & ATA_LBA48) { 98 fis[rhd_command] = (ata_bio->flags & ATA_READ) ? 99 WDCC_READDMA_EXT : WDCC_WRITEDMA_EXT; 100 } else { 101 fis[rhd_command] = 102 (ata_bio->flags & ATA_READ) ? WDCC_READDMA : WDCC_WRITEDMA; 103 } 104 fis[rhd_sector] = ata_bio->blkno & 0xff; 105 fis[rhd_cyl_lo] = (ata_bio->blkno >> 8) & 0xff; 106 fis[rhd_cyl_hi] = (ata_bio->blkno >> 16) & 0xff; 107 if (ata_bio->flags & ATA_LBA48) { 108 fis[rhd_dh] = WDSD_LBA; 109 fis[rhd_sector_exp] = (ata_bio->blkno >> 24) & 0xff; 110 fis[rhd_cyl_lo_exp] = (ata_bio->blkno >> 32) & 0xff; 111 fis[rhd_cyl_hi_exp] = (ata_bio->blkno >> 40) & 0xff; 112 } else { 113 fis[rhd_dh] = ((ata_bio->blkno >> 24) & 0x0f) | WDSD_LBA; 114 } 115 fis[rhd_seccnt] = nblks & 0xff; 116 fis[rhd_seccnt_exp] = (ata_bio->flags & ATA_LBA48) ? 117 ((nblks >> 8) & 0xff) : 0; 118 } 119 120 #if NATAPIBUS > 0 121 void 122 satafis_rhd_construct_atapi(struct ata_xfer *xfer, uint8_t *fis) 123 { 124 memset(fis, 0, RHD_FISLEN); 125 126 fis[fis_type] = RHD_FISTYPE; 127 fis[rhd_c] = RHD_C; 128 fis[rhd_command] = ATAPI_PKT_CMD; 129 fis[rhd_features] = (xfer->c_flags & C_DMA) ? 130 ATAPI_PKT_CMD_FTRE_DMA : 0; 131 132 return; 133 } 134 #endif /* NATAPIBUS */ 135 136 void 137 satafis_rdh_parse(struct ata_channel *chp, const uint8_t *fis) 138 { 139 chp->ch_status = fis[rdh_status]; 140 chp->ch_error = fis[rdh_error]; 141 } 142 143 void 144 satafis_rdh_cmd_readreg(struct ata_command *ata_c, const uint8_t *fis) 145 { 146 ata_c->r_command = fis[rdh_status]; 147 ata_c->r_features = fis[rdh_error]; 148 ata_c->r_error = fis[rdh_error]; 149 ata_c->r_sector = fis[rdh_sector]; 150 ata_c->r_cyl = fis[rdh_cyl_hi] << 8 | fis[rdh_cyl_lo]; 151 ata_c->r_head = fis[rdh_dh]; 152 ata_c->r_count = fis[rdh_seccnt]; 153 } 154
Indexes created Sat Sep 27 14:09:57 GMT 2025