Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 3 | * Copyright 2003-2004 Red Hat, Inc. All rights reserved. |
| 4 | * Copyright 2003-2004 Jeff Garzik |
| 5 | * |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2, or (at your option) |
| 10 | * any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; see the file COPYING. If not, write to |
| 19 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | * |
| 21 | * |
| 22 | * libata documentation is available via 'make {ps|pdf}docs', |
| 23 | * as Documentation/DocBook/libata.* |
| 24 | * |
| 25 | * Hardware documentation available from http://www.t13.org/ |
| 26 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | */ |
| 28 | |
| 29 | #ifndef __LINUX_ATA_H__ |
| 30 | #define __LINUX_ATA_H__ |
| 31 | |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 32 | #include <linux/kernel.h> |
| 33 | #include <linux/string.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <linux/types.h> |
Bartlomiej Zolnierkiewicz | 93734a2 | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 35 | #include <asm/byteorder.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
| 37 | /* defines only for the constants which don't work well as enums */ |
| 38 | #define ATA_DMA_BOUNDARY 0xffffUL |
| 39 | #define ATA_DMA_MASK 0xffffffffULL |
| 40 | |
| 41 | enum { |
| 42 | /* various global constants */ |
| 43 | ATA_MAX_DEVICES = 2, /* per bus/port */ |
| 44 | ATA_MAX_PRD = 256, /* we could make these 256/256 */ |
| 45 | ATA_SECT_SIZE = 512, |
Albert Lee | 18d6e9d | 2007-04-02 11:34:15 +0800 | [diff] [blame] | 46 | ATA_MAX_SECTORS_128 = 128, |
Jeff Garzik | 8b881b0 | 2006-06-11 09:59:27 -0400 | [diff] [blame] | 47 | ATA_MAX_SECTORS = 256, |
| 48 | ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */ |
Tony Battersby | f8d8e57 | 2007-10-30 11:44:35 -0400 | [diff] [blame] | 49 | ATA_MAX_SECTORS_TAPE = 65535, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | ATA_ID_WORDS = 256, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 52 | ATA_ID_CONFIG = 0, |
| 53 | ATA_ID_CYLS = 1, |
| 54 | ATA_ID_HEADS = 3, |
| 55 | ATA_ID_SECTORS = 6, |
Tejun Heo | a0cf733 | 2007-01-02 20:18:49 +0900 | [diff] [blame] | 56 | ATA_ID_SERNO = 10, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 57 | ATA_ID_BUF_SIZE = 21, |
Tejun Heo | a0cf733 | 2007-01-02 20:18:49 +0900 | [diff] [blame] | 58 | ATA_ID_FW_REV = 23, |
| 59 | ATA_ID_PROD = 27, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 60 | ATA_ID_MAX_MULTSECT = 47, |
| 61 | ATA_ID_DWORD_IO = 48, |
| 62 | ATA_ID_CAPABILITY = 49, |
Alan Cox | 11e29e2 | 2005-10-21 18:46:32 -0400 | [diff] [blame] | 63 | ATA_ID_OLD_PIO_MODES = 51, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 64 | ATA_ID_OLD_DMA_MODES = 52, |
Alan Cox | 11e29e2 | 2005-10-21 18:46:32 -0400 | [diff] [blame] | 65 | ATA_ID_FIELD_VALID = 53, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 66 | ATA_ID_CUR_CYLS = 54, |
| 67 | ATA_ID_CUR_HEADS = 55, |
| 68 | ATA_ID_CUR_SECTORS = 56, |
| 69 | ATA_ID_MULTSECT = 59, |
| 70 | ATA_ID_LBA_CAPACITY = 60, |
| 71 | ATA_ID_SWDMA_MODES = 62, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | ATA_ID_MWDMA_MODES = 63, |
Alan Cox | 11e29e2 | 2005-10-21 18:46:32 -0400 | [diff] [blame] | 73 | ATA_ID_PIO_MODES = 64, |
| 74 | ATA_ID_EIDE_DMA_MIN = 65, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 75 | ATA_ID_EIDE_DMA_TIME = 66, |
Alan Cox | 11e29e2 | 2005-10-21 18:46:32 -0400 | [diff] [blame] | 76 | ATA_ID_EIDE_PIO = 67, |
| 77 | ATA_ID_EIDE_PIO_IORDY = 68, |
Martin K. Petersen | e78db4d | 2009-11-26 22:46:03 -0500 | [diff] [blame] | 78 | ATA_ID_ADDITIONAL_SUPP = 69, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 79 | ATA_ID_QUEUE_DEPTH = 75, |
Shane Huang | 583661a | 2012-09-07 22:38:20 +0800 | [diff] [blame] | 80 | ATA_ID_SATA_CAPABILITY = 76, |
| 81 | ATA_ID_SATA_CAPABILITY_2 = 77, |
| 82 | ATA_ID_FEATURE_SUPP = 78, |
Alan Cox | 11e29e2 | 2005-10-21 18:46:32 -0400 | [diff] [blame] | 83 | ATA_ID_MAJOR_VER = 80, |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 84 | ATA_ID_COMMAND_SET_1 = 82, |
| 85 | ATA_ID_COMMAND_SET_2 = 83, |
| 86 | ATA_ID_CFSSE = 84, |
| 87 | ATA_ID_CFS_ENABLE_1 = 85, |
| 88 | ATA_ID_CFS_ENABLE_2 = 86, |
| 89 | ATA_ID_CSF_DEFAULT = 87, |
| 90 | ATA_ID_UDMA_MODES = 88, |
| 91 | ATA_ID_HW_CONFIG = 93, |
| 92 | ATA_ID_SPG = 98, |
| 93 | ATA_ID_LBA_CAPACITY_2 = 100, |
Christoph Hellwig | 18f0f97 | 2009-11-17 10:00:47 -0500 | [diff] [blame] | 94 | ATA_ID_SECTOR_SIZE = 106, |
Hannes Reinecke | 6b3b9d7 | 2011-03-07 08:56:44 +0100 | [diff] [blame] | 95 | ATA_ID_WWN = 108, |
Grant Grundler | 295124d | 2010-08-17 10:56:53 -0700 | [diff] [blame] | 96 | ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */ |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 97 | ATA_ID_LAST_LUN = 126, |
| 98 | ATA_ID_DLF = 128, |
| 99 | ATA_ID_CSFO = 129, |
| 100 | ATA_ID_CFA_POWER = 160, |
Sergei Shtylyov | d42ad15 | 2009-03-05 17:20:55 +0100 | [diff] [blame] | 101 | ATA_ID_CFA_KEY_MGMT = 162, |
| 102 | ATA_ID_CFA_MODES = 163, |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 103 | ATA_ID_DATA_SET_MGMT = 169, |
Jens Axboe | 8bff7c6 | 2008-09-24 13:05:10 +0200 | [diff] [blame] | 104 | ATA_ID_ROT_SPEED = 217, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | ATA_ID_PIO4 = (1 << 1), |
| 106 | |
Tejun Heo | a0cf733 | 2007-01-02 20:18:49 +0900 | [diff] [blame] | 107 | ATA_ID_SERNO_LEN = 20, |
| 108 | ATA_ID_FW_REV_LEN = 8, |
| 109 | ATA_ID_PROD_LEN = 40, |
Hannes Reinecke | 6b3b9d7 | 2011-03-07 08:56:44 +0100 | [diff] [blame] | 110 | ATA_ID_WWN_LEN = 8, |
Tejun Heo | a0cf733 | 2007-01-02 20:18:49 +0900 | [diff] [blame] | 111 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | ATA_PCI_CTL_OFS = 2, |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 113 | |
| 114 | ATA_PIO0 = (1 << 0), |
| 115 | ATA_PIO1 = ATA_PIO0 | (1 << 1), |
| 116 | ATA_PIO2 = ATA_PIO1 | (1 << 2), |
| 117 | ATA_PIO3 = ATA_PIO2 | (1 << 3), |
| 118 | ATA_PIO4 = ATA_PIO3 | (1 << 4), |
| 119 | ATA_PIO5 = ATA_PIO4 | (1 << 5), |
| 120 | ATA_PIO6 = ATA_PIO5 | (1 << 6), |
| 121 | |
Erik Inge Bolsø | 22ddbd1 | 2009-03-14 21:37:48 +0100 | [diff] [blame] | 122 | ATA_PIO4_ONLY = (1 << 4), |
| 123 | |
Bartlomiej Zolnierkiewicz | 91a6d4e | 2007-08-27 19:35:22 +0200 | [diff] [blame] | 124 | ATA_SWDMA0 = (1 << 0), |
| 125 | ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), |
| 126 | ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), |
| 127 | |
| 128 | ATA_SWDMA2_ONLY = (1 << 2), |
| 129 | |
| 130 | ATA_MWDMA0 = (1 << 0), |
| 131 | ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), |
| 132 | ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), |
Erik Inge Bolsø | 22ddbd1 | 2009-03-14 21:37:48 +0100 | [diff] [blame] | 133 | ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), |
| 134 | ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), |
Bartlomiej Zolnierkiewicz | 91a6d4e | 2007-08-27 19:35:22 +0200 | [diff] [blame] | 135 | |
| 136 | ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), |
| 137 | ATA_MWDMA2_ONLY = (1 << 2), |
| 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | ATA_UDMA0 = (1 << 0), |
| 140 | ATA_UDMA1 = ATA_UDMA0 | (1 << 1), |
| 141 | ATA_UDMA2 = ATA_UDMA1 | (1 << 2), |
| 142 | ATA_UDMA3 = ATA_UDMA2 | (1 << 3), |
| 143 | ATA_UDMA4 = ATA_UDMA3 | (1 << 4), |
| 144 | ATA_UDMA5 = ATA_UDMA4 | (1 << 5), |
| 145 | ATA_UDMA6 = ATA_UDMA5 | (1 << 6), |
| 146 | ATA_UDMA7 = ATA_UDMA6 | (1 << 7), |
| 147 | /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */ |
| 148 | |
Erik Inge Bolsø | 22ddbd1 | 2009-03-14 21:37:48 +0100 | [diff] [blame] | 149 | ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), |
| 150 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ |
| 152 | |
| 153 | /* DMA-related */ |
| 154 | ATA_PRD_SZ = 8, |
| 155 | ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), |
| 156 | ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ |
| 157 | |
| 158 | ATA_DMA_TABLE_OFS = 4, |
| 159 | ATA_DMA_STATUS = 2, |
| 160 | ATA_DMA_CMD = 0, |
| 161 | ATA_DMA_WR = (1 << 3), |
| 162 | ATA_DMA_START = (1 << 0), |
| 163 | ATA_DMA_INTR = (1 << 2), |
| 164 | ATA_DMA_ERR = (1 << 1), |
| 165 | ATA_DMA_ACTIVE = (1 << 0), |
| 166 | |
| 167 | /* bits in ATA command block registers */ |
| 168 | ATA_HOB = (1 << 7), /* LBA48 selector */ |
| 169 | ATA_NIEN = (1 << 1), /* disable-irq flag */ |
| 170 | ATA_LBA = (1 << 6), /* LBA28 selector */ |
| 171 | ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ |
| 172 | ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */ |
| 173 | ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */ |
| 174 | ATA_BUSY = (1 << 7), /* BSY status bit */ |
| 175 | ATA_DRDY = (1 << 6), /* device ready */ |
| 176 | ATA_DF = (1 << 5), /* device fault */ |
Bartlomiej Zolnierkiewicz | b591162 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 177 | ATA_DSC = (1 << 4), /* drive seek complete */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | ATA_DRQ = (1 << 3), /* data request i/o */ |
Bartlomiej Zolnierkiewicz | b591162 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 179 | ATA_CORR = (1 << 2), /* corrected data error */ |
| 180 | ATA_IDX = (1 << 1), /* index */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | ATA_ERR = (1 << 0), /* have an error */ |
| 182 | ATA_SRST = (1 << 2), /* software reset */ |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 183 | ATA_ICRC = (1 << 7), /* interface CRC error */ |
Bartlomiej Zolnierkiewicz | b591162 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 184 | ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 185 | ATA_UNC = (1 << 6), /* uncorrectable media error */ |
Bartlomiej Zolnierkiewicz | b591162 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 186 | ATA_MC = (1 << 5), /* media changed */ |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 187 | ATA_IDNF = (1 << 4), /* ID not found */ |
Bartlomiej Zolnierkiewicz | b591162 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 188 | ATA_MCR = (1 << 3), /* media change requested */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | ATA_ABORTED = (1 << 2), /* command aborted */ |
Bartlomiej Zolnierkiewicz | b591162 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 190 | ATA_TRK0NF = (1 << 1), /* track 0 not found */ |
| 191 | ATA_AMNF = (1 << 0), /* address mark not found */ |
| 192 | ATAPI_LFS = 0xF0, /* last failed sense */ |
| 193 | ATAPI_EOM = ATA_TRK0NF, /* end of media */ |
| 194 | ATAPI_ILI = ATA_AMNF, /* illegal length indication */ |
| 195 | ATAPI_IO = (1 << 1), |
| 196 | ATAPI_COD = (1 << 0), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
| 198 | /* ATA command block registers */ |
| 199 | ATA_REG_DATA = 0x00, |
| 200 | ATA_REG_ERR = 0x01, |
| 201 | ATA_REG_NSECT = 0x02, |
| 202 | ATA_REG_LBAL = 0x03, |
| 203 | ATA_REG_LBAM = 0x04, |
| 204 | ATA_REG_LBAH = 0x05, |
| 205 | ATA_REG_DEVICE = 0x06, |
| 206 | ATA_REG_STATUS = 0x07, |
| 207 | |
| 208 | ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */ |
| 209 | ATA_REG_CMD = ATA_REG_STATUS, |
| 210 | ATA_REG_BYTEL = ATA_REG_LBAM, |
| 211 | ATA_REG_BYTEH = ATA_REG_LBAH, |
| 212 | ATA_REG_DEVSEL = ATA_REG_DEVICE, |
| 213 | ATA_REG_IRQ = ATA_REG_NSECT, |
| 214 | |
| 215 | /* ATA device commands */ |
Jeff Garzik | ab2181c | 2007-05-28 08:30:36 -0400 | [diff] [blame] | 216 | ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ |
Douglas Gilbert | 972dcaf | 2005-08-11 03:35:53 -0400 | [diff] [blame] | 218 | ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ |
| 219 | ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | ATA_CMD_EDD = 0x90, /* execute device diagnostic */ |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 221 | ATA_CMD_DOWNLOAD_MICRO = 0x92, |
| 222 | ATA_CMD_NOP = 0x00, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | ATA_CMD_FLUSH = 0xE7, |
| 224 | ATA_CMD_FLUSH_EXT = 0xEA, |
| 225 | ATA_CMD_ID_ATA = 0xEC, |
| 226 | ATA_CMD_ID_ATAPI = 0xA1, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 227 | ATA_CMD_SERVICE = 0xA2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | ATA_CMD_READ = 0xC8, |
| 229 | ATA_CMD_READ_EXT = 0x25, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 230 | ATA_CMD_READ_QUEUED = 0x26, |
| 231 | ATA_CMD_READ_STREAM_EXT = 0x2B, |
| 232 | ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | ATA_CMD_WRITE = 0xCA, |
| 234 | ATA_CMD_WRITE_EXT = 0x35, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 235 | ATA_CMD_WRITE_QUEUED = 0x36, |
| 236 | ATA_CMD_WRITE_STREAM_EXT = 0x3B, |
| 237 | ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, |
Tejun Heo | 9a3dccc | 2006-01-06 09:56:18 +0100 | [diff] [blame] | 238 | ATA_CMD_WRITE_FUA_EXT = 0x3D, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 239 | ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, |
Tejun Heo | 88e4903 | 2006-05-15 21:03:38 +0900 | [diff] [blame] | 240 | ATA_CMD_FPDMA_READ = 0x60, |
| 241 | ATA_CMD_FPDMA_WRITE = 0x61, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | ATA_CMD_PIO_READ = 0x20, |
| 243 | ATA_CMD_PIO_READ_EXT = 0x24, |
| 244 | ATA_CMD_PIO_WRITE = 0x30, |
| 245 | ATA_CMD_PIO_WRITE_EXT = 0x34, |
Albert Lee | 8cbd6df | 2005-10-12 15:06:27 +0800 | [diff] [blame] | 246 | ATA_CMD_READ_MULTI = 0xC4, |
| 247 | ATA_CMD_READ_MULTI_EXT = 0x29, |
| 248 | ATA_CMD_WRITE_MULTI = 0xC5, |
| 249 | ATA_CMD_WRITE_MULTI_EXT = 0x39, |
Tejun Heo | 9a3dccc | 2006-01-06 09:56:18 +0100 | [diff] [blame] | 250 | ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | ATA_CMD_SET_FEATURES = 0xEF, |
Albert Lee | 2c3d2a4 | 2007-06-07 16:01:17 +0800 | [diff] [blame] | 252 | ATA_CMD_SET_MULTI = 0xC6, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | ATA_CMD_PACKET = 0xA0, |
| 254 | ATA_CMD_VERIFY = 0x40, |
| 255 | ATA_CMD_VERIFY_EXT = 0x42, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 256 | ATA_CMD_WRITE_UNCORR_EXT = 0x45, |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 257 | ATA_CMD_STANDBYNOW1 = 0xE0, |
| 258 | ATA_CMD_IDLEIMMEDIATE = 0xE1, |
Tejun Heo | 054a5fb | 2007-10-25 18:30:36 +0900 | [diff] [blame] | 259 | ATA_CMD_SLEEP = 0xE6, |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 260 | ATA_CMD_INIT_DEV_PARAMS = 0x91, |
Alan Cox | b678272 | 2006-03-21 15:52:49 +0000 | [diff] [blame] | 261 | ATA_CMD_READ_NATIVE_MAX = 0xF8, |
| 262 | ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, |
Alan Cox | 1e99973 | 2007-04-11 00:23:13 +0100 | [diff] [blame] | 263 | ATA_CMD_SET_MAX = 0xF9, |
| 264 | ATA_CMD_SET_MAX_EXT = 0x37, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 265 | ATA_CMD_READ_LOG_EXT = 0x2F, |
| 266 | ATA_CMD_WRITE_LOG_EXT = 0x3F, |
| 267 | ATA_CMD_READ_LOG_DMA_EXT = 0x47, |
| 268 | ATA_CMD_WRITE_LOG_DMA_EXT = 0x57, |
| 269 | ATA_CMD_TRUSTED_RCV = 0x5C, |
| 270 | ATA_CMD_TRUSTED_RCV_DMA = 0x5D, |
| 271 | ATA_CMD_TRUSTED_SND = 0x5E, |
| 272 | ATA_CMD_TRUSTED_SND_DMA = 0x5F, |
Tejun Heo | 814600e | 2007-07-01 19:05:58 +0900 | [diff] [blame] | 273 | ATA_CMD_PMP_READ = 0xE4, |
| 274 | ATA_CMD_PMP_WRITE = 0xE8, |
Tejun Heo | ce2e0ab | 2007-12-15 15:04:59 +0900 | [diff] [blame] | 275 | ATA_CMD_CONF_OVERLAY = 0xB1, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 276 | ATA_CMD_SEC_SET_PASS = 0xF1, |
| 277 | ATA_CMD_SEC_UNLOCK = 0xF2, |
| 278 | ATA_CMD_SEC_ERASE_PREP = 0xF3, |
| 279 | ATA_CMD_SEC_ERASE_UNIT = 0xF4, |
Tejun Heo | ce2e0ab | 2007-12-15 15:04:59 +0900 | [diff] [blame] | 280 | ATA_CMD_SEC_FREEZE_LOCK = 0xF5, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 281 | ATA_CMD_SEC_DISABLE_PASS = 0xF6, |
| 282 | ATA_CMD_CONFIG_STREAM = 0x51, |
Bartlomiej Zolnierkiewicz | 476d989 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 283 | ATA_CMD_SMART = 0xB0, |
| 284 | ATA_CMD_MEDIA_LOCK = 0xDE, |
| 285 | ATA_CMD_MEDIA_UNLOCK = 0xDF, |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 286 | ATA_CMD_DSM = 0x06, |
Robert Hancock | 6521148 | 2009-07-14 20:43:39 -0600 | [diff] [blame] | 287 | ATA_CMD_CHK_MED_CRD_TYP = 0xD1, |
| 288 | ATA_CMD_CFA_REQ_EXT_ERR = 0x03, |
| 289 | ATA_CMD_CFA_WRITE_NE = 0x38, |
| 290 | ATA_CMD_CFA_TRANS_SECT = 0x87, |
| 291 | ATA_CMD_CFA_ERASE = 0xC0, |
| 292 | ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, |
Bartlomiej Zolnierkiewicz | 476d989 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 293 | /* marked obsolete in the ATA/ATAPI-7 spec */ |
| 294 | ATA_CMD_RESTORE = 0x10, |
Tejun Heo | 88e4903 | 2006-05-15 21:03:38 +0900 | [diff] [blame] | 295 | |
| 296 | /* READ_LOG_EXT pages */ |
| 297 | ATA_LOG_SATA_NCQ = 0x10, |
Shane Huang | 65fe1f0 | 2012-09-07 22:40:01 +0800 | [diff] [blame] | 298 | ATA_LOG_SATA_ID_DEV_DATA = 0x30, |
| 299 | ATA_LOG_SATA_SETTINGS = 0x08, |
Shane Huang | 803739d | 2012-12-17 23:18:59 +0800 | [diff] [blame] | 300 | ATA_LOG_DEVSLP_OFFSET = 0x30, |
| 301 | ATA_LOG_DEVSLP_SIZE = 0x08, |
| 302 | ATA_LOG_DEVSLP_MDAT = 0x00, |
Shane Huang | 65fe1f0 | 2012-09-07 22:40:01 +0800 | [diff] [blame] | 303 | ATA_LOG_DEVSLP_MDAT_MASK = 0x1F, |
Shane Huang | 803739d | 2012-12-17 23:18:59 +0800 | [diff] [blame] | 304 | ATA_LOG_DEVSLP_DETO = 0x01, |
| 305 | ATA_LOG_DEVSLP_VALID = 0x07, |
Shane Huang | 65fe1f0 | 2012-09-07 22:40:01 +0800 | [diff] [blame] | 306 | ATA_LOG_DEVSLP_VALID_MASK = 0x80, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | |
Mark Lord | 5a5dbd1 | 2007-03-16 10:22:26 -0400 | [diff] [blame] | 308 | /* READ/WRITE LONG (obsolete) */ |
| 309 | ATA_CMD_READ_LONG = 0x22, |
| 310 | ATA_CMD_READ_LONG_ONCE = 0x23, |
| 311 | ATA_CMD_WRITE_LONG = 0x32, |
| 312 | ATA_CMD_WRITE_LONG_ONCE = 0x33, |
| 313 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | /* SETFEATURES stuff */ |
| 315 | SETFEATURES_XFER = 0x03, |
| 316 | XFER_UDMA_7 = 0x47, |
| 317 | XFER_UDMA_6 = 0x46, |
| 318 | XFER_UDMA_5 = 0x45, |
| 319 | XFER_UDMA_4 = 0x44, |
| 320 | XFER_UDMA_3 = 0x43, |
| 321 | XFER_UDMA_2 = 0x42, |
| 322 | XFER_UDMA_1 = 0x41, |
| 323 | XFER_UDMA_0 = 0x40, |
Alan Cox | b352e57 | 2006-08-10 18:52:12 +0100 | [diff] [blame] | 324 | XFER_MW_DMA_4 = 0x24, /* CFA only */ |
| 325 | XFER_MW_DMA_3 = 0x23, /* CFA only */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | XFER_MW_DMA_2 = 0x22, |
| 327 | XFER_MW_DMA_1 = 0x21, |
| 328 | XFER_MW_DMA_0 = 0x20, |
Alan Cox | b4b52db | 2005-09-26 12:48:41 +0100 | [diff] [blame] | 329 | XFER_SW_DMA_2 = 0x12, |
| 330 | XFER_SW_DMA_1 = 0x11, |
| 331 | XFER_SW_DMA_0 = 0x10, |
Alan Cox | b352e57 | 2006-08-10 18:52:12 +0100 | [diff] [blame] | 332 | XFER_PIO_6 = 0x0E, /* CFA only */ |
| 333 | XFER_PIO_5 = 0x0D, /* CFA only */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | XFER_PIO_4 = 0x0C, |
| 335 | XFER_PIO_3 = 0x0B, |
| 336 | XFER_PIO_2 = 0x0A, |
| 337 | XFER_PIO_1 = 0x09, |
| 338 | XFER_PIO_0 = 0x08, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | XFER_PIO_SLOW = 0x00, |
| 340 | |
zhao, forrest | 3057ac3 | 2006-06-12 12:01:34 +0800 | [diff] [blame] | 341 | SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
| 342 | SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ |
| 343 | |
Bartlomiej Zolnierkiewicz | 476d989 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 344 | /* Enable/Disable Automatic Acoustic Management */ |
| 345 | SETFEATURES_AAM_ON = 0x42, |
| 346 | SETFEATURES_AAM_OFF = 0xC2, |
| 347 | |
Mark Lord | 169439c | 2007-04-17 18:26:07 -0400 | [diff] [blame] | 348 | SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
| 349 | |
Kristen Carlson Accardi | 9f45cbd | 2007-08-15 03:57:11 -0400 | [diff] [blame] | 350 | SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ |
| 351 | SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ |
| 352 | |
| 353 | /* SETFEATURE Sector counts for SATA features */ |
Tejun Heo | fa5b561 | 2009-09-16 04:17:02 +0900 | [diff] [blame] | 354 | SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 355 | SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ |
| 356 | SATA_DIPM = 0x03, /* Device Initiated Power Management */ |
Tejun Heo | fa5b561 | 2009-09-16 04:17:02 +0900 | [diff] [blame] | 357 | SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 358 | SATA_AN = 0x05, /* Asynchronous Notification */ |
Tejun Heo | fa5b561 | 2009-09-16 04:17:02 +0900 | [diff] [blame] | 359 | SATA_SSP = 0x06, /* Software Settings Preservation */ |
Shane Huang | 65fe1f0 | 2012-09-07 22:40:01 +0800 | [diff] [blame] | 360 | SATA_DEVSLP = 0x09, /* Device Sleep */ |
Kristen Carlson Accardi | 9f45cbd | 2007-08-15 03:57:11 -0400 | [diff] [blame] | 361 | |
Tejun Heo | ce2e0ab | 2007-12-15 15:04:59 +0900 | [diff] [blame] | 362 | /* feature values for SET_MAX */ |
| 363 | ATA_SET_MAX_ADDR = 0x00, |
| 364 | ATA_SET_MAX_PASSWD = 0x01, |
| 365 | ATA_SET_MAX_LOCK = 0x02, |
| 366 | ATA_SET_MAX_UNLOCK = 0x03, |
| 367 | ATA_SET_MAX_FREEZE_LOCK = 0x04, |
| 368 | |
| 369 | /* feature values for DEVICE CONFIGURATION OVERLAY */ |
| 370 | ATA_DCO_RESTORE = 0xC0, |
| 371 | ATA_DCO_FREEZE_LOCK = 0xC1, |
| 372 | ATA_DCO_IDENTIFY = 0xC2, |
| 373 | ATA_DCO_SET = 0xC3, |
| 374 | |
Bartlomiej Zolnierkiewicz | 476d989 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 375 | /* feature values for SMART */ |
| 376 | ATA_SMART_ENABLE = 0xD8, |
| 377 | ATA_SMART_READ_VALUES = 0xD0, |
| 378 | ATA_SMART_READ_THRESHOLDS = 0xD1, |
| 379 | |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 380 | /* feature values for Data Set Management */ |
| 381 | ATA_DSM_TRIM = 0x01, |
| 382 | |
Bartlomiej Zolnierkiewicz | 476d989 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 383 | /* password used in LBA Mid / LBA High for executing SMART commands */ |
| 384 | ATA_SMART_LBAM_PASS = 0x4F, |
| 385 | ATA_SMART_LBAH_PASS = 0xC2, |
| 386 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | /* ATAPI stuff */ |
| 388 | ATAPI_PKT_DMA = (1 << 0), |
| 389 | ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: |
| 390 | 0=to device, 1=to host */ |
| 391 | ATAPI_CDB_LEN = 16, |
| 392 | |
Tejun Heo | 814600e | 2007-07-01 19:05:58 +0900 | [diff] [blame] | 393 | /* PMP stuff */ |
| 394 | SATA_PMP_MAX_PORTS = 15, |
| 395 | SATA_PMP_CTRL_PORT = 15, |
| 396 | |
| 397 | SATA_PMP_GSCR_DWORDS = 128, |
| 398 | SATA_PMP_GSCR_PROD_ID = 0, |
| 399 | SATA_PMP_GSCR_REV = 1, |
| 400 | SATA_PMP_GSCR_PORT_INFO = 2, |
| 401 | SATA_PMP_GSCR_ERROR = 32, |
| 402 | SATA_PMP_GSCR_ERROR_EN = 33, |
| 403 | SATA_PMP_GSCR_FEAT = 64, |
| 404 | SATA_PMP_GSCR_FEAT_EN = 96, |
| 405 | |
| 406 | SATA_PMP_PSCR_STATUS = 0, |
| 407 | SATA_PMP_PSCR_ERROR = 1, |
| 408 | SATA_PMP_PSCR_CONTROL = 2, |
| 409 | |
| 410 | SATA_PMP_FEAT_BIST = (1 << 0), |
| 411 | SATA_PMP_FEAT_PMREQ = (1 << 1), |
| 412 | SATA_PMP_FEAT_DYNSSC = (1 << 2), |
| 413 | SATA_PMP_FEAT_NOTIFY = (1 << 3), |
| 414 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | /* cable types */ |
| 416 | ATA_CBL_NONE = 0, |
| 417 | ATA_CBL_PATA40 = 1, |
| 418 | ATA_CBL_PATA80 = 2, |
Tejun Heo | c88f90c | 2007-11-27 19:43:48 +0900 | [diff] [blame] | 419 | ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ |
| 420 | ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ |
| 421 | ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ |
| 422 | ATA_CBL_SATA = 6, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | |
| 424 | /* SATA Status and Control Registers */ |
| 425 | SCR_STATUS = 0, |
| 426 | SCR_ERROR = 1, |
| 427 | SCR_CONTROL = 2, |
| 428 | SCR_ACTIVE = 3, |
| 429 | SCR_NOTIFICATION = 4, |
| 430 | |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 431 | /* SError bits */ |
| 432 | SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ |
| 433 | SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ |
| 434 | SERR_DATA = (1 << 8), /* unrecovered data error */ |
| 435 | SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ |
| 436 | SERR_PROTOCOL = (1 << 10), /* protocol violation */ |
| 437 | SERR_INTERNAL = (1 << 11), /* host internal error */ |
| 438 | SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ |
Robert Hancock | 1333e19 | 2007-10-02 11:22:02 -0400 | [diff] [blame] | 439 | SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ |
| 440 | SERR_COMM_WAKE = (1 << 18), /* Comm wake */ |
| 441 | SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ |
| 442 | SERR_DISPARITY = (1 << 20), /* Disparity */ |
| 443 | SERR_CRC = (1 << 21), /* CRC error */ |
| 444 | SERR_HANDSHAKE = (1 << 22), /* Handshake error */ |
| 445 | SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ |
| 446 | SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ |
| 447 | SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 448 | SERR_DEV_XCHG = (1 << 26), /* device exchanged */ |
| 449 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | /* struct ata_taskfile flags */ |
| 451 | ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ |
| 452 | ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ |
| 453 | ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ |
| 454 | ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 455 | ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ |
Tejun Heo | 9a3dccc | 2006-01-06 09:56:18 +0100 | [diff] [blame] | 456 | ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ |
Jeff Garzik | ea9b395 | 2006-01-17 10:29:06 -0500 | [diff] [blame] | 457 | ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ |
Tejun Heo | 405e66b | 2007-11-27 19:28:53 +0900 | [diff] [blame] | 458 | |
| 459 | /* protocol flags */ |
| 460 | ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ |
| 461 | ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ |
| 462 | ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, |
| 463 | ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ |
| 464 | ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | }; |
| 466 | |
| 467 | enum ata_tf_protocols { |
| 468 | /* ATA taskfile protocols */ |
| 469 | ATA_PROT_UNKNOWN, /* unknown/invalid */ |
| 470 | ATA_PROT_NODATA, /* no data */ |
Albert Lee | 1dce589 | 2007-06-07 15:49:22 +0800 | [diff] [blame] | 471 | ATA_PROT_PIO, /* PIO data xfer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | ATA_PROT_DMA, /* DMA */ |
Tejun Heo | 88e4903 | 2006-05-15 21:03:38 +0900 | [diff] [blame] | 473 | ATA_PROT_NCQ, /* NCQ */ |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 474 | ATAPI_PROT_NODATA, /* packet command, no data */ |
| 475 | ATAPI_PROT_PIO, /* packet command, PIO data xfer*/ |
| 476 | ATAPI_PROT_DMA, /* packet command with special DMA sauce */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | }; |
| 478 | |
| 479 | enum ata_ioctls { |
| 480 | ATA_IOC_GET_IO32 = 0x309, |
| 481 | ATA_IOC_SET_IO32 = 0x324, |
| 482 | }; |
| 483 | |
| 484 | /* core structures */ |
| 485 | |
Tejun Heo | f60d701 | 2010-05-10 21:41:41 +0200 | [diff] [blame] | 486 | struct ata_bmdma_prd { |
Al Viro | 4ca4e43 | 2007-12-30 09:32:22 +0000 | [diff] [blame] | 487 | __le32 addr; |
| 488 | __le32 flags_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | }; |
| 490 | |
| 491 | struct ata_taskfile { |
| 492 | unsigned long flags; /* ATA_TFLAG_xxx */ |
| 493 | u8 protocol; /* ATA_PROT_xxx */ |
| 494 | |
| 495 | u8 ctl; /* control reg */ |
| 496 | |
| 497 | u8 hob_feature; /* additional data */ |
| 498 | u8 hob_nsect; /* to support LBA48 */ |
| 499 | u8 hob_lbal; |
| 500 | u8 hob_lbam; |
| 501 | u8 hob_lbah; |
| 502 | |
| 503 | u8 feature; |
| 504 | u8 nsect; |
| 505 | u8 lbal; |
| 506 | u8 lbam; |
| 507 | u8 lbah; |
| 508 | |
| 509 | u8 device; |
| 510 | |
| 511 | u8 command; /* IO operation */ |
| 512 | }; |
| 513 | |
Tejun Heo | 405e66b | 2007-11-27 19:28:53 +0900 | [diff] [blame] | 514 | /* |
| 515 | * protocol tests |
| 516 | */ |
| 517 | static inline unsigned int ata_prot_flags(u8 prot) |
| 518 | { |
| 519 | switch (prot) { |
| 520 | case ATA_PROT_NODATA: |
| 521 | return 0; |
| 522 | case ATA_PROT_PIO: |
| 523 | return ATA_PROT_FLAG_PIO; |
| 524 | case ATA_PROT_DMA: |
| 525 | return ATA_PROT_FLAG_DMA; |
| 526 | case ATA_PROT_NCQ: |
| 527 | return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 528 | case ATAPI_PROT_NODATA: |
Tejun Heo | 405e66b | 2007-11-27 19:28:53 +0900 | [diff] [blame] | 529 | return ATA_PROT_FLAG_ATAPI; |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 530 | case ATAPI_PROT_PIO: |
Tejun Heo | 405e66b | 2007-11-27 19:28:53 +0900 | [diff] [blame] | 531 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 532 | case ATAPI_PROT_DMA: |
Tejun Heo | 405e66b | 2007-11-27 19:28:53 +0900 | [diff] [blame] | 533 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; |
| 534 | } |
| 535 | return 0; |
| 536 | } |
| 537 | |
| 538 | static inline int ata_is_atapi(u8 prot) |
| 539 | { |
| 540 | return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; |
| 541 | } |
| 542 | |
| 543 | static inline int ata_is_nodata(u8 prot) |
| 544 | { |
| 545 | return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); |
| 546 | } |
| 547 | |
| 548 | static inline int ata_is_pio(u8 prot) |
| 549 | { |
| 550 | return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; |
| 551 | } |
| 552 | |
| 553 | static inline int ata_is_dma(u8 prot) |
| 554 | { |
| 555 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; |
| 556 | } |
| 557 | |
| 558 | static inline int ata_is_ncq(u8 prot) |
| 559 | { |
| 560 | return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; |
| 561 | } |
| 562 | |
| 563 | static inline int ata_is_data(u8 prot) |
| 564 | { |
| 565 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; |
| 566 | } |
| 567 | |
| 568 | /* |
| 569 | * id tests |
| 570 | */ |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 571 | #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) |
| 572 | #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) |
| 573 | #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) |
Shane Huang | 583661a | 2012-09-07 22:38:20 +0800 | [diff] [blame] | 574 | #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 575 | #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) |
| 576 | #define ata_id_removeable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) |
Tejun Heo | 854c73a | 2007-09-23 13:14:11 +0900 | [diff] [blame] | 577 | #define ata_id_has_atapi_AN(id) \ |
Shane Huang | 583661a | 2012-09-07 22:38:20 +0800 | [diff] [blame] | 578 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
| 579 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ |
| 580 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5))) |
Shaohua Li | 388539f | 2009-07-27 09:24:35 +0800 | [diff] [blame] | 581 | #define ata_id_has_fpdma_aa(id) \ |
Shane Huang | 583661a | 2012-09-07 22:38:20 +0800 | [diff] [blame] | 582 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
| 583 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ |
| 584 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2))) |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 585 | #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) |
| 586 | #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | #define ata_id_u32(id,n) \ |
| 588 | (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) |
| 589 | #define ata_id_u64(id,n) \ |
| 590 | ( ((u64) (id)[(n) + 3] << 48) | \ |
| 591 | ((u64) (id)[(n) + 2] << 32) | \ |
| 592 | ((u64) (id)[(n) + 1] << 16) | \ |
| 593 | ((u64) (id)[(n) + 0]) ) |
| 594 | |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 595 | #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) |
Shane Huang | 583661a | 2012-09-07 22:38:20 +0800 | [diff] [blame] | 596 | #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) |
Shane Huang | 65fe1f0 | 2012-09-07 22:40:01 +0800 | [diff] [blame] | 597 | #define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)) |
Albert Lee | 312f7da | 2005-09-27 17:38:03 +0800 | [diff] [blame] | 598 | |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 599 | static inline bool ata_id_has_hipm(const u16 *id) |
| 600 | { |
Shane Huang | 583661a | 2012-09-07 22:38:20 +0800 | [diff] [blame] | 601 | u16 val = id[ATA_ID_SATA_CAPABILITY]; |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 602 | |
| 603 | if (val == 0 || val == 0xffff) |
| 604 | return false; |
| 605 | |
| 606 | return val & (1 << 9); |
| 607 | } |
| 608 | |
| 609 | static inline bool ata_id_has_dipm(const u16 *id) |
| 610 | { |
Shane Huang | 583661a | 2012-09-07 22:38:20 +0800 | [diff] [blame] | 611 | u16 val = id[ATA_ID_FEATURE_SUPP]; |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 612 | |
| 613 | if (val == 0 || val == 0xffff) |
| 614 | return false; |
| 615 | |
| 616 | return val & (1 << 3); |
| 617 | } |
| 618 | |
Alan Cox | ae8d4ee | 2007-11-04 22:05:49 -0500 | [diff] [blame] | 619 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 620 | static inline bool ata_id_has_fua(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 621 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 622 | if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 623 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 624 | return id[ATA_ID_CFSSE] & (1 << 6); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 625 | } |
| 626 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 627 | static inline bool ata_id_has_flush(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 628 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 629 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 630 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 631 | return id[ATA_ID_COMMAND_SET_2] & (1 << 12); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 632 | } |
| 633 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 634 | static inline bool ata_id_flush_enabled(const u16 *id) |
Bartlomiej Zolnierkiewicz | 4b58f17 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 635 | { |
| 636 | if (ata_id_has_flush(id) == 0) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 637 | return false; |
Bartlomiej Zolnierkiewicz | 4b58f17 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 638 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 639 | return false; |
Bartlomiej Zolnierkiewicz | 4b58f17 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 640 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); |
| 641 | } |
| 642 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 643 | static inline bool ata_id_has_flush_ext(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 644 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 645 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 646 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 647 | return id[ATA_ID_COMMAND_SET_2] & (1 << 13); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 648 | } |
| 649 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 650 | static inline bool ata_id_flush_ext_enabled(const u16 *id) |
Bartlomiej Zolnierkiewicz | ff2779b | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 651 | { |
| 652 | if (ata_id_has_flush_ext(id) == 0) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 653 | return false; |
Bartlomiej Zolnierkiewicz | ff2779b | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 654 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 655 | return false; |
Bartlomiej Zolnierkiewicz | ff2779b | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 656 | /* |
| 657 | * some Maxtor disks have bit 13 defined incorrectly |
| 658 | * so check bit 10 too |
| 659 | */ |
| 660 | return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; |
| 661 | } |
| 662 | |
Grant Grundler | 295124d | 2010-08-17 10:56:53 -0700 | [diff] [blame] | 663 | static inline u32 ata_id_logical_sector_size(const u16 *id) |
Christoph Hellwig | 18f0f97 | 2009-11-17 10:00:47 -0500 | [diff] [blame] | 664 | { |
Grant Grundler | 295124d | 2010-08-17 10:56:53 -0700 | [diff] [blame] | 665 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. |
| 666 | * IDENTIFY DEVICE data, word 117-118. |
| 667 | * 0xd000 ignores bit 13 (logical:physical > 1) |
| 668 | */ |
| 669 | if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) |
| 670 | return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) |
| 671 | + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; |
| 672 | return ATA_SECT_SIZE; |
Christoph Hellwig | 18f0f97 | 2009-11-17 10:00:47 -0500 | [diff] [blame] | 673 | } |
| 674 | |
Grant Grundler | 295124d | 2010-08-17 10:56:53 -0700 | [diff] [blame] | 675 | static inline u8 ata_id_log2_per_physical_sector(const u16 *id) |
Christoph Hellwig | 18f0f97 | 2009-11-17 10:00:47 -0500 | [diff] [blame] | 676 | { |
Grant Grundler | 295124d | 2010-08-17 10:56:53 -0700 | [diff] [blame] | 677 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. |
| 678 | * IDENTIFY DEVICE data, word 106. |
| 679 | * 0xe000 ignores bit 12 (logical sector > 512 bytes) |
| 680 | */ |
| 681 | if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) |
| 682 | return (id[ATA_ID_SECTOR_SIZE] & 0xf); |
| 683 | return 0; |
| 684 | } |
| 685 | |
| 686 | /* Offset of logical sectors relative to physical sectors. |
| 687 | * |
| 688 | * If device has more than one logical sector per physical sector |
| 689 | * (aka 512 byte emulation), vendors might offset the "sector 0" address |
| 690 | * so sector 63 is "naturally aligned" - e.g. FAT partition table. |
| 691 | * This avoids Read/Mod/Write penalties when using FAT partition table |
| 692 | * and updating "well aligned" (FS perspective) physical sectors on every |
| 693 | * transaction. |
| 694 | */ |
| 695 | static inline u16 ata_id_logical_sector_offset(const u16 *id, |
| 696 | u8 log2_per_phys) |
| 697 | { |
| 698 | u16 word_209 = id[209]; |
| 699 | |
| 700 | if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { |
| 701 | u16 first = word_209 & 0x3fff; |
| 702 | if (first > 0) |
| 703 | return (1 << log2_per_phys) - first; |
| 704 | } |
| 705 | return 0; |
Christoph Hellwig | 18f0f97 | 2009-11-17 10:00:47 -0500 | [diff] [blame] | 706 | } |
| 707 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 708 | static inline bool ata_id_has_lba48(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 709 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 710 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 711 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 712 | if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 713 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 714 | return id[ATA_ID_COMMAND_SET_2] & (1 << 10); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 715 | } |
| 716 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 717 | static inline bool ata_id_lba48_enabled(const u16 *id) |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 718 | { |
| 719 | if (ata_id_has_lba48(id) == 0) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 720 | return false; |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 721 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 722 | return false; |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 723 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); |
| 724 | } |
| 725 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 726 | static inline bool ata_id_hpa_enabled(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 727 | { |
| 728 | /* Yes children, word 83 valid bits cover word 82 data */ |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 729 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 730 | return false; |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 731 | /* And 87 covers 85-87 */ |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 732 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 733 | return false; |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 734 | /* Check command sets enabled as well as supported */ |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 735 | if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 736 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 737 | return id[ATA_ID_COMMAND_SET_1] & (1 << 10); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 738 | } |
| 739 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 740 | static inline bool ata_id_has_wcache(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 741 | { |
| 742 | /* Yes children, word 83 valid bits cover word 82 data */ |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 743 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 744 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 745 | return id[ATA_ID_COMMAND_SET_1] & (1 << 5); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 746 | } |
| 747 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 748 | static inline bool ata_id_has_pm(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 749 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 750 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 751 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 752 | return id[ATA_ID_COMMAND_SET_1] & (1 << 3); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 753 | } |
| 754 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 755 | static inline bool ata_id_rahead_enabled(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 756 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 757 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 758 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 759 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 760 | } |
| 761 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 762 | static inline bool ata_id_wcache_enabled(const u16 *id) |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 763 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 764 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 765 | return false; |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 766 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 767 | } |
| 768 | |
| 769 | /** |
| 770 | * ata_id_major_version - get ATA level of drive |
| 771 | * @id: Identify data |
| 772 | * |
| 773 | * Caveats: |
| 774 | * ATA-1 considers identify optional |
| 775 | * ATA-2 introduces mandatory identify |
| 776 | * ATA-3 introduces word 80 and accurate reporting |
| 777 | * |
| 778 | * The practical impact of this is that ata_id_major_version cannot |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 779 | * reliably report on drives below ATA3. |
Alan Cox | c729387 | 2007-08-22 23:31:43 +0100 | [diff] [blame] | 780 | */ |
| 781 | |
Tejun Heo | 3d2ca91 | 2006-02-12 22:47:04 +0900 | [diff] [blame] | 782 | static inline unsigned int ata_id_major_version(const u16 *id) |
| 783 | { |
| 784 | unsigned int mver; |
| 785 | |
Alan Cox | b352e57 | 2006-08-10 18:52:12 +0100 | [diff] [blame] | 786 | if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
| 787 | return 0; |
| 788 | |
Tejun Heo | 3d2ca91 | 2006-02-12 22:47:04 +0900 | [diff] [blame] | 789 | for (mver = 14; mver >= 1; mver--) |
| 790 | if (id[ATA_ID_MAJOR_VER] & (1 << mver)) |
| 791 | break; |
| 792 | return mver; |
| 793 | } |
| 794 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 795 | static inline bool ata_id_is_sata(const u16 *id) |
Tejun Heo | 32d9091 | 2007-02-21 20:25:08 +0900 | [diff] [blame] | 796 | { |
Bartlomiej Zolnierkiewicz | 367d7e7 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 797 | /* |
| 798 | * See if word 93 is 0 AND drive is at least ATA-5 compatible |
| 799 | * verifying that word 80 by casting it to a signed type -- |
| 800 | * this trick allows us to filter out the reserved values of |
| 801 | * 0x0000 and 0xffff along with the earlier ATA revisions... |
| 802 | */ |
| 803 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 804 | return true; |
| 805 | return false; |
Tejun Heo | 32d9091 | 2007-02-21 20:25:08 +0900 | [diff] [blame] | 806 | } |
| 807 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 808 | static inline bool ata_id_has_tpm(const u16 *id) |
Alan Cox | ae8d4ee | 2007-11-04 22:05:49 -0500 | [diff] [blame] | 809 | { |
| 810 | /* The TPM bits are only valid on ATA8 */ |
| 811 | if (ata_id_major_version(id) < 8) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 812 | return false; |
Alan Cox | ae8d4ee | 2007-11-04 22:05:49 -0500 | [diff] [blame] | 813 | if ((id[48] & 0xC000) != 0x4000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 814 | return false; |
Alan Cox | ae8d4ee | 2007-11-04 22:05:49 -0500 | [diff] [blame] | 815 | return id[48] & (1 << 0); |
| 816 | } |
| 817 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 818 | static inline bool ata_id_has_dword_io(const u16 *id) |
Alan Cox | ae8d4ee | 2007-11-04 22:05:49 -0500 | [diff] [blame] | 819 | { |
| 820 | /* ATA 8 reuses this flag for "trusted" computing */ |
| 821 | if (ata_id_major_version(id) > 7) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 822 | return false; |
| 823 | return id[ATA_ID_DWORD_IO] & (1 << 0); |
Alan Cox | ae8d4ee | 2007-11-04 22:05:49 -0500 | [diff] [blame] | 824 | } |
| 825 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 826 | static inline bool ata_id_has_unload(const u16 *id) |
Elias Oltmanns | ea6ce53 | 2008-09-19 23:46:01 +0200 | [diff] [blame] | 827 | { |
| 828 | if (ata_id_major_version(id) >= 7 && |
| 829 | (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && |
| 830 | id[ATA_ID_CFSSE] & (1 << 13)) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 831 | return true; |
| 832 | return false; |
Elias Oltmanns | ea6ce53 | 2008-09-19 23:46:01 +0200 | [diff] [blame] | 833 | } |
| 834 | |
Hannes Reinecke | 6b3b9d7 | 2011-03-07 08:56:44 +0100 | [diff] [blame] | 835 | static inline bool ata_id_has_wwn(const u16 *id) |
| 836 | { |
| 837 | return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100; |
| 838 | } |
| 839 | |
Martin K. Petersen | 4bca328 | 2009-05-15 00:40:35 -0400 | [diff] [blame] | 840 | static inline int ata_id_form_factor(const u16 *id) |
| 841 | { |
| 842 | u16 val = id[168]; |
| 843 | |
| 844 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) |
| 845 | return 0; |
| 846 | |
| 847 | val &= 0xf; |
| 848 | |
| 849 | if (val > 5) |
| 850 | return 0; |
| 851 | |
| 852 | return val; |
| 853 | } |
| 854 | |
| 855 | static inline int ata_id_rotation_rate(const u16 *id) |
| 856 | { |
| 857 | u16 val = id[217]; |
| 858 | |
| 859 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) |
| 860 | return 0; |
| 861 | |
| 862 | if (val > 1 && val < 0x401) |
| 863 | return 0; |
| 864 | |
| 865 | return val; |
| 866 | } |
| 867 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 868 | static inline bool ata_id_has_trim(const u16 *id) |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 869 | { |
| 870 | if (ata_id_major_version(id) >= 7 && |
| 871 | (id[ATA_ID_DATA_SET_MGMT] & 1)) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 872 | return true; |
| 873 | return false; |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 874 | } |
| 875 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 876 | static inline bool ata_id_has_zero_after_trim(const u16 *id) |
Martin K. Petersen | e78db4d | 2009-11-26 22:46:03 -0500 | [diff] [blame] | 877 | { |
| 878 | /* DSM supported, deterministic read, and read zero after trim set */ |
| 879 | if (ata_id_has_trim(id) && |
| 880 | (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 881 | return true; |
Martin K. Petersen | e78db4d | 2009-11-26 22:46:03 -0500 | [diff] [blame] | 882 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 883 | return false; |
Martin K. Petersen | e78db4d | 2009-11-26 22:46:03 -0500 | [diff] [blame] | 884 | } |
| 885 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 886 | static inline bool ata_id_current_chs_valid(const u16 *id) |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 887 | { |
Jeff Garzik | 9bec2e3 | 2006-08-31 00:02:15 -0400 | [diff] [blame] | 888 | /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |
| 889 | has not been issued to the device then the values of |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 890 | id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ |
| 891 | return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ |
| 892 | id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ |
| 893 | id[ATA_ID_CUR_HEADS] && /* heads in current translation */ |
| 894 | id[ATA_ID_CUR_HEADS] <= 16 && |
| 895 | id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 896 | } |
| 897 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 898 | static inline bool ata_id_is_cfa(const u16 *id) |
Alan Cox | b352e57 | 2006-08-10 18:52:12 +0100 | [diff] [blame] | 899 | { |
Ben Gardner | 4b7d1c0 | 2010-02-23 12:41:22 -0600 | [diff] [blame] | 900 | if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ |
| 901 | (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 902 | return true; |
Sergei Shtylyov | 2999b58 | 2009-02-01 20:46:39 +0400 | [diff] [blame] | 903 | /* |
| 904 | * CF specs don't require specific value in the word 0 anymore and yet |
| 905 | * they forbid to report the ATA version in the word 80 and require the |
| 906 | * CFA feature set support to be indicated in the word 83 in this case. |
| 907 | * Unfortunately, some cards only follow either of this requirements, |
| 908 | * and while those that don't indicate CFA feature support need some |
| 909 | * sort of quirk list, it seems impractical for the ones that do... |
| 910 | */ |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 911 | return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004; |
Alan Cox | b352e57 | 2006-08-10 18:52:12 +0100 | [diff] [blame] | 912 | } |
| 913 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 914 | static inline bool ata_id_is_ssd(const u16 *id) |
Jens Axboe | 8bff7c6 | 2008-09-24 13:05:10 +0200 | [diff] [blame] | 915 | { |
| 916 | return id[ATA_ID_ROT_SPEED] == 0x01; |
| 917 | } |
| 918 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 919 | static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) |
Bartlomiej Zolnierkiewicz | 6dae44f | 2009-06-15 18:52:52 +0200 | [diff] [blame] | 920 | { |
| 921 | /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ |
| 922 | if (pio > 4 && ata_id_is_cfa(id)) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 923 | return false; |
Bartlomiej Zolnierkiewicz | 6dae44f | 2009-06-15 18:52:52 +0200 | [diff] [blame] | 924 | /* For PIO3 and higher it is mandatory. */ |
| 925 | if (pio > 2) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 926 | return true; |
Bartlomiej Zolnierkiewicz | 6dae44f | 2009-06-15 18:52:52 +0200 | [diff] [blame] | 927 | /* Turn it on when possible. */ |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 928 | return ata_id_has_iordy(id); |
Bartlomiej Zolnierkiewicz | 6dae44f | 2009-06-15 18:52:52 +0200 | [diff] [blame] | 929 | } |
| 930 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 931 | static inline bool ata_drive_40wire(const u16 *dev_id) |
Alan Cox | fc08515 | 2006-10-10 14:28:11 -0700 | [diff] [blame] | 932 | { |
Tejun Heo | 32d9091 | 2007-02-21 20:25:08 +0900 | [diff] [blame] | 933 | if (ata_id_is_sata(dev_id)) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 934 | return false; /* SATA */ |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 935 | if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 936 | return false; /* 80 wire */ |
| 937 | return true; |
Alan Cox | fc08515 | 2006-10-10 14:28:11 -0700 | [diff] [blame] | 938 | } |
| 939 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 940 | static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) |
Alan Cox | 6bbfd53 | 2007-11-05 22:58:58 +0000 | [diff] [blame] | 941 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 942 | if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 943 | return false; /* 80 wire */ |
| 944 | return true; |
Alan Cox | 6bbfd53 | 2007-11-05 22:58:58 +0000 | [diff] [blame] | 945 | } |
| 946 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 947 | static inline int atapi_cdb_len(const u16 *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 949 | u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | switch (tmp) { |
| 951 | case 0: return 12; |
| 952 | case 1: return 16; |
| 953 | default: return -1; |
| 954 | } |
| 955 | } |
| 956 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 957 | static inline bool atapi_command_packet_set(const u16 *dev_id) |
Tony Battersby | f8d8e57 | 2007-10-30 11:44:35 -0400 | [diff] [blame] | 958 | { |
Bartlomiej Zolnierkiewicz | 37014c6 | 2008-08-18 21:40:05 +0200 | [diff] [blame] | 959 | return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; |
Tony Battersby | f8d8e57 | 2007-10-30 11:44:35 -0400 | [diff] [blame] | 960 | } |
| 961 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 962 | static inline bool atapi_id_dmadir(const u16 *dev_id) |
Tejun Heo | 9116300 | 2008-02-21 13:25:50 +0900 | [diff] [blame] | 963 | { |
| 964 | return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); |
| 965 | } |
| 966 | |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 967 | /* |
| 968 | * ata_id_is_lba_capacity_ok() performs a sanity check on |
| 969 | * the claimed LBA capacity value for the device. |
| 970 | * |
| 971 | * Returns 1 if LBA capacity looks sensible, 0 otherwise. |
| 972 | * |
| 973 | * It is called only once for each device. |
| 974 | */ |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 975 | static inline bool ata_id_is_lba_capacity_ok(u16 *id) |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 976 | { |
| 977 | unsigned long lba_sects, chs_sects, head, tail; |
| 978 | |
| 979 | /* No non-LBA info .. so valid! */ |
| 980 | if (id[ATA_ID_CYLS] == 0) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 981 | return true; |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 982 | |
| 983 | lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); |
| 984 | |
| 985 | /* |
| 986 | * The ATA spec tells large drives to return |
| 987 | * C/H/S = 16383/16/63 independent of their size. |
| 988 | * Some drives can be jumpered to use 15 heads instead of 16. |
| 989 | * Some drives can be jumpered to use 4092 cyls instead of 16383. |
| 990 | */ |
| 991 | if ((id[ATA_ID_CYLS] == 16383 || |
| 992 | (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && |
| 993 | id[ATA_ID_SECTORS] == 63 && |
| 994 | (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && |
| 995 | (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 996 | return true; |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 997 | |
| 998 | chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; |
| 999 | |
| 1000 | /* perform a rough sanity check on lba_sects: within 10% is OK */ |
| 1001 | if (lba_sects - chs_sects < chs_sects/10) |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 1002 | return true; |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 1003 | |
| 1004 | /* some drives have the word order reversed */ |
| 1005 | head = (lba_sects >> 16) & 0xffff; |
| 1006 | tail = lba_sects & 0xffff; |
| 1007 | lba_sects = head | (tail << 16); |
| 1008 | |
| 1009 | if (lba_sects - chs_sects < chs_sects/10) { |
| 1010 | *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 1011 | return true; /* LBA capacity is (now) good */ |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 1012 | } |
| 1013 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 1014 | return false; /* LBA capacity value may be bad */ |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 1015 | } |
| 1016 | |
Bartlomiej Zolnierkiewicz | 93734a2 | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 1017 | static inline void ata_id_to_hd_driveid(u16 *id) |
| 1018 | { |
| 1019 | #ifdef __BIG_ENDIAN |
| 1020 | /* accessed in struct hd_driveid as 8-bit values */ |
| 1021 | id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); |
| 1022 | id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); |
| 1023 | id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); |
| 1024 | id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); |
| 1025 | id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); |
| 1026 | |
| 1027 | /* as 32-bit values */ |
| 1028 | *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); |
| 1029 | *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); |
| 1030 | |
| 1031 | /* as 64-bit value */ |
| 1032 | *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = |
| 1033 | ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); |
| 1034 | #endif |
| 1035 | } |
| 1036 | |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 1037 | /* |
Martin K. Petersen | d0634c4 | 2009-11-26 12:00:43 -0500 | [diff] [blame] | 1038 | * Write LBA Range Entries to the buffer that will cover the extent from |
| 1039 | * sector to sector + count. This is used for TRIM and for ADD LBA(S) |
| 1040 | * TO NV CACHE PINNED SET. |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 1041 | */ |
Martin K. Petersen | d0634c4 | 2009-11-26 12:00:43 -0500 | [diff] [blame] | 1042 | static inline unsigned ata_set_lba_range_entries(void *_buffer, |
| 1043 | unsigned buf_size, u64 sector, unsigned long count) |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 1044 | { |
| 1045 | __le64 *buffer = _buffer; |
Martin K. Petersen | d0634c4 | 2009-11-26 12:00:43 -0500 | [diff] [blame] | 1046 | unsigned i = 0, used_bytes; |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 1047 | |
Martin K. Petersen | d0634c4 | 2009-11-26 12:00:43 -0500 | [diff] [blame] | 1048 | while (i < buf_size / 8 ) { /* 6-byte LBA + 2-byte range per entry */ |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 1049 | u64 entry = sector | |
| 1050 | ((u64)(count > 0xffff ? 0xffff : count) << 48); |
| 1051 | buffer[i++] = __cpu_to_le64(entry); |
| 1052 | if (count <= 0xffff) |
| 1053 | break; |
| 1054 | count -= 0xffff; |
| 1055 | sector += 0xffff; |
| 1056 | } |
| 1057 | |
Martin K. Petersen | d0634c4 | 2009-11-26 12:00:43 -0500 | [diff] [blame] | 1058 | used_bytes = ALIGN(i * 8, 512); |
| 1059 | memset(buffer + i, 0, used_bytes - i * 8); |
| 1060 | return used_bytes; |
Matthew Wilcox | 0c659b8 | 2009-04-02 10:37:25 -0400 | [diff] [blame] | 1061 | } |
| 1062 | |
Albert Lee | 07f6f7d | 2005-11-01 19:33:20 +0800 | [diff] [blame] | 1063 | static inline int is_multi_taskfile(struct ata_taskfile *tf) |
| 1064 | { |
| 1065 | return (tf->command == ATA_CMD_READ_MULTI) || |
| 1066 | (tf->command == ATA_CMD_WRITE_MULTI) || |
| 1067 | (tf->command == ATA_CMD_READ_MULTI_EXT) || |
Albert Lee | c2956a3 | 2006-03-03 10:34:05 +0800 | [diff] [blame] | 1068 | (tf->command == ATA_CMD_WRITE_MULTI_EXT) || |
| 1069 | (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); |
Albert Lee | 07f6f7d | 2005-11-01 19:33:20 +0800 | [diff] [blame] | 1070 | } |
| 1071 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 1072 | static inline bool ata_ok(u8 status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | { |
| 1074 | return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) |
| 1075 | == ATA_DRDY); |
| 1076 | } |
| 1077 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 1078 | static inline bool lba_28_ok(u64 block, u32 n_block) |
Albert Lee | c6a33e2 | 2005-10-12 15:12:26 +0800 | [diff] [blame] | 1079 | { |
Mark Lord | 45c4d01 | 2010-04-07 13:52:08 -0400 | [diff] [blame] | 1080 | /* check the ending block number: must be LESS THAN 0x0fffffff */ |
| 1081 | return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= 256); |
Albert Lee | c6a33e2 | 2005-10-12 15:12:26 +0800 | [diff] [blame] | 1082 | } |
| 1083 | |
Hannes Reinecke | 4dce8ba | 2011-03-14 08:54:20 +0100 | [diff] [blame] | 1084 | static inline bool lba_48_ok(u64 block, u32 n_block) |
Albert Lee | c6a33e2 | 2005-10-12 15:12:26 +0800 | [diff] [blame] | 1085 | { |
| 1086 | /* check the ending block number */ |
| 1087 | return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536); |
| 1088 | } |
| 1089 | |
Tejun Heo | 814600e | 2007-07-01 19:05:58 +0900 | [diff] [blame] | 1090 | #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) |
| 1091 | #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) |
| 1092 | #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) |
| 1093 | #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) |
| 1094 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | #endif /* __LINUX_ATA_H__ */ |