Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 2 | * Copyright 2003-2005 Red Hat, Inc. All rights reserved. |
| 3 | * Copyright 2003-2005 Jeff Garzik |
| 4 | * |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2, or (at your option) |
| 9 | * any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; see the file COPYING. If not, write to |
| 18 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 | * |
| 20 | * |
| 21 | * libata documentation is available via 'make {ps|pdf}docs', |
| 22 | * as Documentation/DocBook/libata.* |
| 23 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | */ |
| 25 | |
| 26 | #ifndef __LINUX_LIBATA_H__ |
| 27 | #define __LINUX_LIBATA_H__ |
| 28 | |
| 29 | #include <linux/delay.h> |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 30 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <linux/interrupt.h> |
Andrew Morton | 1c72d8d | 2005-11-10 16:21:38 -0800 | [diff] [blame] | 32 | #include <linux/dma-mapping.h> |
Jens Axboe | 8726021 | 2007-10-16 11:14:12 +0200 | [diff] [blame] | 33 | #include <linux/scatterlist.h> |
Tejun Heo | f0d36ef | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 34 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/ata.h> |
| 36 | #include <linux/workqueue.h> |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 37 | #include <scsi/scsi_host.h> |
Kristen Carlson Accardi | 11ef697 | 2006-09-28 11:29:01 -0700 | [diff] [blame] | 38 | #include <linux/acpi.h> |
Tejun Heo | ceb0c64 | 2007-12-05 16:43:06 +0900 | [diff] [blame] | 39 | #include <linux/cdrom.h> |
Tejun Heo | c0c362b | 2010-09-06 17:57:14 +0200 | [diff] [blame] | 40 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Jeff Garzik | a6d967a | 2006-09-25 15:33:09 -0400 | [diff] [blame] | 42 | /* |
| 43 | * Define if arch has non-standard setup. This is a _PCI_ standard |
| 44 | * not a legacy or ISA standard. |
| 45 | */ |
| 46 | #ifdef CONFIG_ATA_NONSTANDARD |
Alan Cox | 2ec7df0 | 2006-08-10 16:59:10 +0900 | [diff] [blame] | 47 | #include <asm/libata-portmap.h> |
Jeff Garzik | a6d967a | 2006-09-25 15:33:09 -0400 | [diff] [blame] | 48 | #else |
| 49 | #include <asm-generic/libata-portmap.h> |
| 50 | #endif |
Alan Cox | 2ec7df0 | 2006-08-10 16:59:10 +0900 | [diff] [blame] | 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | /* |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 53 | * compile-time options: to be removed as soon as all the drivers are |
| 54 | * converted to the new debugging mechanism |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | */ |
| 56 | #undef ATA_DEBUG /* debugging output */ |
| 57 | #undef ATA_VERBOSE_DEBUG /* yet more debugging output */ |
| 58 | #undef ATA_IRQ_TRAP /* define to ack screaming irqs */ |
| 59 | #undef ATA_NDEBUG /* define to disable quick runtime checks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
| 61 | |
| 62 | /* note: prints function name for you */ |
| 63 | #ifdef ATA_DEBUG |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 64 | #define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | #ifdef ATA_VERBOSE_DEBUG |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 66 | #define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | #else |
| 68 | #define VPRINTK(fmt, args...) |
| 69 | #endif /* ATA_VERBOSE_DEBUG */ |
| 70 | #else |
| 71 | #define DPRINTK(fmt, args...) |
| 72 | #define VPRINTK(fmt, args...) |
| 73 | #endif /* ATA_DEBUG */ |
| 74 | |
Alexander Beregalov | 1f938d0 | 2008-07-21 00:06:19 +0400 | [diff] [blame] | 75 | #define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 76 | |
Joe Perches | 06296a1 | 2011-04-15 15:52:00 -0700 | [diff] [blame] | 77 | #define ata_print_version_once(dev, version) \ |
| 78 | ({ \ |
| 79 | static bool __print_once; \ |
| 80 | \ |
| 81 | if (!__print_once) { \ |
| 82 | __print_once = true; \ |
| 83 | ata_print_version(dev, version); \ |
| 84 | } \ |
| 85 | }) |
| 86 | |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 87 | /* NEW: debug levels */ |
| 88 | #define HAVE_LIBATA_MSG 1 |
| 89 | |
| 90 | enum { |
| 91 | ATA_MSG_DRV = 0x0001, |
| 92 | ATA_MSG_INFO = 0x0002, |
| 93 | ATA_MSG_PROBE = 0x0004, |
| 94 | ATA_MSG_WARN = 0x0008, |
| 95 | ATA_MSG_MALLOC = 0x0010, |
| 96 | ATA_MSG_CTL = 0x0020, |
| 97 | ATA_MSG_INTR = 0x0040, |
| 98 | ATA_MSG_ERR = 0x0080, |
| 99 | }; |
| 100 | |
| 101 | #define ata_msg_drv(p) ((p)->msg_enable & ATA_MSG_DRV) |
| 102 | #define ata_msg_info(p) ((p)->msg_enable & ATA_MSG_INFO) |
| 103 | #define ata_msg_probe(p) ((p)->msg_enable & ATA_MSG_PROBE) |
| 104 | #define ata_msg_warn(p) ((p)->msg_enable & ATA_MSG_WARN) |
| 105 | #define ata_msg_malloc(p) ((p)->msg_enable & ATA_MSG_MALLOC) |
| 106 | #define ata_msg_ctl(p) ((p)->msg_enable & ATA_MSG_CTL) |
| 107 | #define ata_msg_intr(p) ((p)->msg_enable & ATA_MSG_INTR) |
| 108 | #define ata_msg_err(p) ((p)->msg_enable & ATA_MSG_ERR) |
| 109 | |
| 110 | static inline u32 ata_msg_init(int dval, int default_msg_enable_bits) |
| 111 | { |
| 112 | if (dval < 0 || dval >= (sizeof(u32) * 8)) |
| 113 | return default_msg_enable_bits; /* should be 0x1 - only driver info msgs */ |
| 114 | if (!dval) |
| 115 | return 0; |
| 116 | return (1 << dval) - 1; |
| 117 | } |
| 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* defines only for the constants which don't work well as enums */ |
| 120 | #define ATA_TAG_POISON 0xfafbfcfdU |
| 121 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | enum { |
| 123 | /* various global constants */ |
| 124 | LIBATA_MAX_PRD = ATA_MAX_PRD / 2, |
Alan Cox | d26fc95 | 2007-07-06 19:13:52 -0400 | [diff] [blame] | 125 | LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | ATA_DEF_QUEUE = 1, |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 127 | /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */ |
Tejun Heo | a6e6ce8 | 2006-05-15 21:03:48 +0900 | [diff] [blame] | 128 | ATA_MAX_QUEUE = 32, |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 129 | ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1, |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 130 | ATA_SHORT_PAUSE = 16, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
Tejun Heo | 140b5e5 | 2007-12-12 12:21:52 +0900 | [diff] [blame] | 132 | ATAPI_MAX_DRAIN = 16 << 10, |
| 133 | |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 134 | ATA_ALL_DEVICES = (1 << ATA_MAX_DEVICES) - 1, |
| 135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | ATA_SHT_EMULATED = 1, |
| 137 | ATA_SHT_CMD_PER_LUN = 1, |
| 138 | ATA_SHT_THIS_ID = -1, |
Jeff Garzik | cf48293 | 2005-10-22 00:19:33 -0400 | [diff] [blame] | 139 | ATA_SHT_USE_CLUSTERING = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | |
| 141 | /* struct ata_device stuff */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 142 | ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */ |
| 143 | ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */ |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 144 | ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */ |
Tejun Heo | 88e4903 | 2006-05-15 21:03:38 +0900 | [diff] [blame] | 145 | ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */ |
Tejun Heo | 6fc49ad | 2006-11-11 20:10:45 +0900 | [diff] [blame] | 146 | ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ |
Tejun Heo | 6746544 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 147 | ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ |
| 148 | ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ |
Tejun Heo | 7d77b24 | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 149 | ATA_DFLAG_AN = (1 << 7), /* AN configured */ |
Tejun Heo | 9116300 | 2008-02-21 13:25:50 +0900 | [diff] [blame] | 150 | ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */ |
Kristen Carlson Accardi | 2557164 | 2007-09-11 11:41:59 -0700 | [diff] [blame] | 151 | ATA_DFLAG_CFG_MASK = (1 << 12) - 1, |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 152 | |
Kristen Carlson Accardi | 2557164 | 2007-09-11 11:41:59 -0700 | [diff] [blame] | 153 | ATA_DFLAG_PIO = (1 << 12), /* device limited to PIO mode */ |
| 154 | ATA_DFLAG_NCQ_OFF = (1 << 13), /* device limited to non-NCQ mode */ |
Tejun Heo | 054a5fb | 2007-10-25 18:30:36 +0900 | [diff] [blame] | 155 | ATA_DFLAG_SLEEPING = (1 << 15), /* device is sleeping */ |
Tejun Heo | 00115e0 | 2007-11-27 19:28:58 +0900 | [diff] [blame] | 156 | ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 157 | ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */ |
Tejun Heo | 445d211 | 2010-04-05 10:33:13 +0900 | [diff] [blame] | 158 | ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */ |
Tejun Heo | f20ded3 | 2007-11-27 19:28:52 +0900 | [diff] [blame] | 159 | ATA_DFLAG_INIT_MASK = (1 << 24) - 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
Tejun Heo | f20ded3 | 2007-11-27 19:28:52 +0900 | [diff] [blame] | 161 | ATA_DFLAG_DETACH = (1 << 24), |
| 162 | ATA_DFLAG_DETACHED = (1 << 25), |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 163 | |
Lin Ming | b1354cb | 2012-06-25 16:13:08 +0800 | [diff] [blame] | 164 | ATA_DFLAG_DA = (1 << 26), /* device supports Device Attention */ |
| 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | ATA_DEV_UNKNOWN = 0, /* unknown device */ |
| 167 | ATA_DEV_ATA = 1, /* ATA device */ |
| 168 | ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ |
| 169 | ATA_DEV_ATAPI = 3, /* ATAPI device */ |
| 170 | ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 171 | ATA_DEV_PMP = 5, /* SATA port multiplier */ |
| 172 | ATA_DEV_PMP_UNSUP = 6, /* SATA port multiplier (unsupported) */ |
| 173 | ATA_DEV_SEMB = 7, /* SEMB */ |
| 174 | ATA_DEV_SEMB_UNSUP = 8, /* SEMB (unsupported) */ |
| 175 | ATA_DEV_NONE = 9, /* no device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 177 | /* struct ata_link flags */ |
Tejun Heo | 05944bd | 2008-08-13 20:19:09 +0900 | [diff] [blame] | 178 | ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */ |
Tejun Heo | ae791c0 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 179 | ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */ |
| 180 | ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ |
| 181 | ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ |
| 182 | ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB, |
Tejun Heo | fd995f7 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 183 | ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ |
Tejun Heo | f9df58c | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 184 | ATA_LFLAG_DISABLED = (1 << 6), /* link is disabled */ |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 185 | ATA_LFLAG_SW_ACTIVITY = (1 << 7), /* keep activity stats */ |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 186 | ATA_LFLAG_NO_LPM = (1 << 8), /* disable LPM on this link */ |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 187 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | /* struct ata_port flags */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 189 | ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | /* (doesn't imply presence) */ |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 191 | ATA_FLAG_SATA = (1 << 1), |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 192 | ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */ |
| 193 | ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */ |
| 194 | ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */ |
Tejun Heo | 7395acb | 2006-05-31 18:27:25 +0900 | [diff] [blame] | 195 | ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD |
| 196 | * doesn't handle PIO interrupts */ |
| 197 | ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */ |
Rafael J. Wysocki | 2a6e58d | 2009-01-19 20:56:43 +0100 | [diff] [blame] | 198 | ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */ |
| 199 | ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */ |
Tejun Heo | 7395acb | 2006-05-31 18:27:25 +0900 | [diff] [blame] | 200 | ATA_FLAG_DEBUGMSG = (1 << 13), |
Shaohua Li | 388539f | 2009-07-27 09:24:35 +0800 | [diff] [blame] | 201 | ATA_FLAG_FPDMA_AA = (1 << 14), /* driver supports Auto-Activate */ |
Tejun Heo | b2a8bbe | 2007-01-25 19:40:05 +0900 | [diff] [blame] | 202 | ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */ |
Alan Cox | f834e49 | 2007-02-07 13:46:00 -0800 | [diff] [blame] | 203 | ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ |
Tejun Heo | 3cadbcc | 2007-05-15 03:28:15 +0900 | [diff] [blame] | 204 | ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ |
Kristen Carlson Accardi | 9f45cbd | 2007-08-15 03:57:11 -0400 | [diff] [blame] | 205 | ATA_FLAG_AN = (1 << 18), /* controller supports AN */ |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 206 | ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 207 | ATA_FLAG_EM = (1 << 21), /* driver supports enclosure |
| 208 | * management */ |
| 209 | ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity |
| 210 | * led */ |
Tejun Heo | ae01b24 | 2011-03-16 11:14:55 +0100 | [diff] [blame] | 211 | ATA_FLAG_NO_DIPM = (1 << 23), /* host not happy with DIPM */ |
Jens Axboe | 9b84754 | 2006-01-06 09:28:07 +0100 | [diff] [blame] | 212 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 213 | /* bits 24:31 of ap->flags are reserved for LLD specific flags */ |
Alan Cox | 8d238e0 | 2006-01-17 20:50:31 +0000 | [diff] [blame] | 214 | |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 215 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 216 | /* struct ata_port pflags */ |
| 217 | ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */ |
| 218 | ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */ |
| 219 | ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */ |
| 220 | ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */ |
| 221 | ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 222 | ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */ |
Tejun Heo | f4d6d00 | 2007-05-01 11:50:15 +0200 | [diff] [blame] | 223 | ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */ |
Tejun Heo | afaa5c3 | 2007-10-09 15:06:10 +0900 | [diff] [blame] | 224 | ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */ |
Tejun Heo | ece180d | 2008-11-03 20:04:37 +0900 | [diff] [blame] | 225 | ATA_PFLAG_UNLOADING = (1 << 9), /* driver is being unloaded */ |
| 226 | ATA_PFLAG_UNLOADED = (1 << 10), /* driver is unloaded */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 227 | |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 228 | ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */ |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 229 | ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 230 | ATA_PFLAG_INIT_GTM_VALID = (1 << 19), /* initial gtm data valid */ |
Tejun Heo | dde4458 | 2006-02-02 00:56:10 +0900 | [diff] [blame] | 231 | |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 232 | ATA_PFLAG_PIO32 = (1 << 20), /* 32bit PIO */ |
| 233 | ATA_PFLAG_PIO32CHANGE = (1 << 21), /* 32bit PIO can be turned on/off */ |
| 234 | |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 235 | /* struct ata_queued_cmd flags */ |
| 236 | ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */ |
Tejun Heo | 001102d | 2007-12-05 16:43:09 +0900 | [diff] [blame] | 237 | ATA_QCFLAG_DMAMAP = (1 << 1), /* SG table is DMA mapped */ |
Tejun Heo | 2719736 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 238 | ATA_QCFLAG_IO = (1 << 3), /* standard IO command */ |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 239 | ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */ |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 240 | ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */ |
Tejun Heo | e027bd3 | 2007-10-26 16:19:26 +0900 | [diff] [blame] | 241 | ATA_QCFLAG_QUIET = (1 << 6), /* don't report device error */ |
Tejun Heo | 03faab7 | 2008-03-27 19:14:24 +0900 | [diff] [blame] | 242 | ATA_QCFLAG_RETRY = (1 << 7), /* retry after failure */ |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 243 | |
Tejun Heo | 9ec957f | 2006-05-15 20:57:58 +0900 | [diff] [blame] | 244 | ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */ |
| 245 | ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */ |
| 246 | ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Alan Cox | 4e5ec5d | 2006-03-27 18:42:40 +0100 | [diff] [blame] | 248 | /* host set flags */ |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 249 | ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */ |
Tejun Heo | ecef725 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 250 | ATA_HOST_STARTED = (1 << 1), /* Host started */ |
Arjan van de Ven | 886ad09 | 2009-01-09 15:54:07 -0800 | [diff] [blame] | 251 | ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */ |
Andy Whitcroft | db63a4c | 2012-05-04 22:15:10 +0100 | [diff] [blame] | 252 | ATA_HOST_IGNORE_ATA = (1 << 3), /* Ignore ATA devices on this host. */ |
Jeff Garzik | 9bec2e3 | 2006-08-31 00:02:15 -0400 | [diff] [blame] | 253 | |
Tejun Heo | b8b275e | 2007-07-10 15:55:43 +0900 | [diff] [blame] | 254 | /* bits 24:31 of host->flags are reserved for LLD specific flags */ |
| 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | /* various lengths of time */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 257 | ATA_TMOUT_BOOT = 30000, /* heuristic */ |
| 258 | ATA_TMOUT_BOOT_QUICK = 7000, /* heuristic */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 259 | ATA_TMOUT_INTERNAL_QUICK = 5000, |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 260 | ATA_TMOUT_MAX_PARK = 30000, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
Tejun Heo | b48d58f | 2010-04-09 19:46:38 +0900 | [diff] [blame] | 262 | /* |
| 263 | * GoVault needs 2s and iVDR disk HHD424020F7SV00 800ms. 2s |
| 264 | * is too much without parallel probing. Use 2s if parallel |
| 265 | * probing is available, 800ms otherwise. |
Tejun Heo | 88ff6ea | 2007-10-16 14:21:24 -0700 | [diff] [blame] | 266 | */ |
Tejun Heo | b48d58f | 2010-04-09 19:46:38 +0900 | [diff] [blame] | 267 | ATA_TMOUT_FF_WAIT_LONG = 2000, |
| 268 | ATA_TMOUT_FF_WAIT = 800, |
Tejun Heo | 88ff6ea | 2007-10-16 14:21:24 -0700 | [diff] [blame] | 269 | |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 270 | /* Spec mandates to wait for ">= 2ms" before checking status |
| 271 | * after reset. We wait 150ms, because that was the magic |
| 272 | * delay used for ATAPI devices in Hale Landis's ATADRVR, for |
| 273 | * the period of time between when the ATA command register is |
| 274 | * written, and then status is checked. Because waiting for |
| 275 | * "a while" before checking status is fine, post SRST, we |
| 276 | * perform this magic delay here as well. |
| 277 | * |
| 278 | * Old drivers/ide uses the 2mS rule and then waits for ready. |
| 279 | */ |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 280 | ATA_WAIT_AFTER_RESET = 150, |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 281 | |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 282 | /* If PMP is supported, we have to do follow-up SRST. As some |
| 283 | * PMPs don't send D2H Reg FIS after hardreset, LLDs are |
| 284 | * advised to wait only for the following duration before |
| 285 | * doing SRST. |
| 286 | */ |
Stuart Hayes | e7d3ef1 | 2009-03-04 11:59:46 -0800 | [diff] [blame] | 287 | ATA_TMOUT_PMP_SRST_WAIT = 5000, |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | /* ATA bus states */ |
| 290 | BUS_UNKNOWN = 0, |
| 291 | BUS_DMA = 1, |
| 292 | BUS_IDLE = 2, |
| 293 | BUS_NOINTR = 3, |
| 294 | BUS_NODATA = 4, |
| 295 | BUS_TIMER = 5, |
| 296 | BUS_PIO = 6, |
| 297 | BUS_EDD = 7, |
| 298 | BUS_IDENTIFY = 8, |
| 299 | BUS_PACKET = 9, |
| 300 | |
| 301 | /* SATA port states */ |
| 302 | PORT_UNKNOWN = 0, |
| 303 | PORT_ENABLED = 1, |
| 304 | PORT_DISABLED = 2, |
| 305 | |
| 306 | /* encoding various smaller bitmaps into a single |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 307 | * unsigned long bitmap |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | */ |
Tejun Heo | 70cd071 | 2007-11-27 19:43:40 +0900 | [diff] [blame] | 309 | ATA_NR_PIO_MODES = 7, |
| 310 | ATA_NR_MWDMA_MODES = 5, |
| 311 | ATA_NR_UDMA_MODES = 8, |
Tejun Heo | 1da7b0d | 2006-03-06 04:31:56 +0900 | [diff] [blame] | 312 | |
| 313 | ATA_SHIFT_PIO = 0, |
Tejun Heo | 70cd071 | 2007-11-27 19:43:40 +0900 | [diff] [blame] | 314 | ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES, |
| 315 | ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES, |
Tejun Heo | 1da7b0d | 2006-03-06 04:31:56 +0900 | [diff] [blame] | 316 | |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 317 | /* size of buffer to pad xfers ending on unaligned boundaries */ |
| 318 | ATA_DMA_PAD_SZ = 4, |
Tejun Heo | 949b38a | 2006-04-02 18:51:52 +0900 | [diff] [blame] | 319 | |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 320 | /* ering size */ |
| 321 | ATA_ERING_SIZE = 32, |
| 322 | |
Tejun Heo | 31cc23b | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 323 | /* return values for ->qc_defer */ |
| 324 | ATA_DEFER_LINK = 1, |
| 325 | ATA_DEFER_PORT = 2, |
| 326 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 327 | /* desc_len for ata_eh_info and context */ |
| 328 | ATA_EH_DESC_LEN = 80, |
| 329 | |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 330 | /* reset / recovery action types */ |
| 331 | ATA_EH_REVALIDATE = (1 << 0), |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 332 | ATA_EH_SOFTRESET = (1 << 1), /* meaningful only in ->prereset */ |
| 333 | ATA_EH_HARDRESET = (1 << 2), /* meaningful only in ->prereset */ |
| 334 | ATA_EH_RESET = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, |
Tejun Heo | f9df58c | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 335 | ATA_EH_ENABLE_LINK = (1 << 3), |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 336 | ATA_EH_PARK = (1 << 5), /* unload heads and stop I/O */ |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 337 | |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 338 | ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_PARK, |
Tejun Heo | b5b3fa3 | 2008-07-31 17:02:42 +0900 | [diff] [blame] | 339 | ATA_EH_ALL_ACTIONS = ATA_EH_REVALIDATE | ATA_EH_RESET | |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 340 | ATA_EH_ENABLE_LINK, |
Tejun Heo | 9be1e97 | 2006-05-15 20:58:17 +0900 | [diff] [blame] | 341 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 342 | /* ata_eh_info->flags */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 343 | ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ |
Tejun Heo | 1cdaf53 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 344 | ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ |
| 345 | ATA_EHI_QUIET = (1 << 3), /* be quiet */ |
Tejun Heo | e2f3d75 | 2010-09-07 14:05:31 +0200 | [diff] [blame] | 346 | ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 347 | |
Tejun Heo | 0d64a23 | 2007-04-23 02:41:05 +0900 | [diff] [blame] | 348 | ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */ |
| 349 | ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */ |
| 350 | ATA_EHI_PRINTINFO = (1 << 18), /* print configuration info */ |
| 351 | ATA_EHI_SETMODE = (1 << 19), /* configure transfer mode */ |
Andrea Gelmini | 89692c0 | 2010-10-16 15:19:18 +0200 | [diff] [blame] | 352 | ATA_EHI_POST_SETMODE = (1 << 20), /* revalidating after setmode */ |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 353 | |
Tejun Heo | 0d64a23 | 2007-04-23 02:41:05 +0900 | [diff] [blame] | 354 | ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET, |
Tejun Heo | 13abf50 | 2006-07-10 23:18:46 +0900 | [diff] [blame] | 355 | |
Tejun Heo | 848e4c6 | 2008-10-21 14:26:39 +0900 | [diff] [blame] | 356 | /* mask of flags to transfer *to* the slave link */ |
| 357 | ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, |
| 358 | |
Tejun Heo | a1e10f7 | 2007-08-18 13:28:49 +0900 | [diff] [blame] | 359 | /* max tries if error condition is still set after ->error_handler */ |
| 360 | ATA_EH_MAX_TRIES = 5, |
Tejun Heo | ad9e276 | 2006-05-15 20:58:12 +0900 | [diff] [blame] | 361 | |
Tejun Heo | 5040ab6 | 2010-01-11 11:14:44 +0900 | [diff] [blame] | 362 | /* sometimes resuming a link requires several retries */ |
| 363 | ATA_LINK_RESUME_TRIES = 5, |
| 364 | |
Tejun Heo | 14d2bac | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 365 | /* how hard are we gonna try to probe/recover devices */ |
| 366 | ATA_PROBE_MAX_TRIES = 3, |
Tejun Heo | 022bdb0 | 2006-05-15 20:58:22 +0900 | [diff] [blame] | 367 | ATA_EH_DEV_TRIES = 3, |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 368 | ATA_EH_PMP_TRIES = 5, |
| 369 | ATA_EH_PMP_LINK_TRIES = 3, |
| 370 | |
Tejun Heo | bf1bff6 | 2008-05-19 01:15:10 +0900 | [diff] [blame] | 371 | SATA_PMP_RW_TIMEOUT = 3000, /* PMP read/write timeout */ |
Tejun Heo | f5914a4 | 2006-05-31 18:27:48 +0900 | [diff] [blame] | 372 | |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 373 | /* This should match the actual table size of |
| 374 | * ata_eh_cmd_timeout_table in libata-eh.c. |
| 375 | */ |
Tejun Heo | 6013efd | 2009-11-19 15:36:45 +0900 | [diff] [blame] | 376 | ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 6, |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 377 | |
Alan Cox | 9359085 | 2006-09-12 16:55:12 +0100 | [diff] [blame] | 378 | /* Horkage types. May be set by libata or controller on drives |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 379 | (some horkage may be drive/controller pair dependent */ |
Alan Cox | 9359085 | 2006-09-12 16:55:12 +0100 | [diff] [blame] | 380 | |
| 381 | ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */ |
Alan Cox | 6919a0a | 2006-10-27 19:08:46 -0700 | [diff] [blame] | 382 | ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */ |
| 383 | ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */ |
Albert Lee | 18d6e9d | 2007-04-02 11:34:15 +0800 | [diff] [blame] | 384 | ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */ |
Tejun Heo | 16c55b0 | 2007-08-29 11:58:33 +0900 | [diff] [blame] | 385 | ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */ |
Tejun Heo | 50af2fa | 2008-05-19 01:15:14 +0900 | [diff] [blame] | 386 | ATA_HORKAGE_DISABLE = (1 << 5), /* Disable it */ |
Alan Cox | 93328e1 | 2007-09-29 04:06:48 -0400 | [diff] [blame] | 387 | ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ |
Alan Cox | 6bbfd53 | 2007-11-05 22:58:58 +0000 | [diff] [blame] | 388 | ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */ |
Albert Lee | 2d3b8ee | 2007-11-15 10:35:46 +0900 | [diff] [blame] | 389 | ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */ |
Jens Axboe | 9ce8e30 | 2008-08-27 15:23:18 +0200 | [diff] [blame] | 390 | ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */ |
Tejun Heo | 6a87e42 | 2008-11-03 19:01:09 +0900 | [diff] [blame] | 391 | ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands |
| 392 | not multiple of 16 bytes */ |
Nick Andrew | 877d031 | 2009-01-26 11:06:57 +0100 | [diff] [blame] | 393 | ATA_HORKAGE_FIRMWARE_WARN = (1 << 12), /* firmware update warning */ |
Tejun Heo | 9062712 | 2009-01-29 20:31:36 +0900 | [diff] [blame] | 394 | ATA_HORKAGE_1_5_GBPS = (1 << 13), /* force 1.5 Gbps */ |
Tejun Heo | d0cb43b | 2009-07-09 09:27:50 +0900 | [diff] [blame] | 395 | ATA_HORKAGE_NOSETXFER = (1 << 14), /* skip SETXFER, SATA only */ |
Shaohua Li | 388539f | 2009-07-27 09:24:35 +0800 | [diff] [blame] | 396 | ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */ |
Tejun Heo | 43c9c59 | 2010-05-23 12:59:11 +0200 | [diff] [blame] | 397 | ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ |
Alan Cox | b3a7060 | 2007-10-02 12:38:26 -0400 | [diff] [blame] | 398 | |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 399 | /* DMA mask for user DMA control: User visible values; DO NOT |
Alan Cox | b3a7060 | 2007-10-02 12:38:26 -0400 | [diff] [blame] | 400 | renumber */ |
| 401 | ATA_DMA_MASK_ATA = (1 << 0), /* DMA on ATA Disk */ |
| 402 | ATA_DMA_MASK_ATAPI = (1 << 1), /* DMA on ATAPI */ |
| 403 | ATA_DMA_MASK_CFA = (1 << 2), /* DMA on CF Card */ |
Tejun Heo | ceb0c64 | 2007-12-05 16:43:06 +0900 | [diff] [blame] | 404 | |
| 405 | /* ATAPI command types */ |
| 406 | ATAPI_READ = 0, /* READs */ |
| 407 | ATAPI_WRITE = 1, /* WRITEs */ |
| 408 | ATAPI_READ_CD = 2, /* READ CD [MSF] */ |
Tejun Heo | e52dcc4 | 2008-04-02 17:35:19 +0900 | [diff] [blame] | 409 | ATAPI_PASS_THRU = 3, /* SAT pass-thru */ |
| 410 | ATAPI_MISC = 4, /* the rest */ |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 411 | |
| 412 | /* Timing constants */ |
| 413 | ATA_TIMING_SETUP = (1 << 0), |
| 414 | ATA_TIMING_ACT8B = (1 << 1), |
| 415 | ATA_TIMING_REC8B = (1 << 2), |
| 416 | ATA_TIMING_CYC8B = (1 << 3), |
| 417 | ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B | |
| 418 | ATA_TIMING_CYC8B, |
| 419 | ATA_TIMING_ACTIVE = (1 << 4), |
| 420 | ATA_TIMING_RECOVER = (1 << 5), |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 421 | ATA_TIMING_DMACK_HOLD = (1 << 6), |
| 422 | ATA_TIMING_CYCLE = (1 << 7), |
| 423 | ATA_TIMING_UDMA = (1 << 8), |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 424 | ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B | |
| 425 | ATA_TIMING_REC8B | ATA_TIMING_CYC8B | |
| 426 | ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 427 | ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE | |
| 428 | ATA_TIMING_UDMA, |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 429 | |
| 430 | /* ACPI constants */ |
| 431 | ATA_ACPI_FILTER_SETXFER = 1 << 0, |
| 432 | ATA_ACPI_FILTER_LOCK = 1 << 1, |
| 433 | ATA_ACPI_FILTER_DIPM = 1 << 2, |
Tejun Heo | fa5b561 | 2009-09-16 04:17:02 +0900 | [diff] [blame] | 434 | ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3, /* FPDMA non-zero offset */ |
| 435 | ATA_ACPI_FILTER_FPDMA_AA = 1 << 4, /* FPDMA auto activate */ |
Tejun Heo | f1bce7f | 2009-09-16 04:16:04 +0900 | [diff] [blame] | 436 | |
| 437 | ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | |
| 438 | ATA_ACPI_FILTER_LOCK | |
| 439 | ATA_ACPI_FILTER_DIPM, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | }; |
| 441 | |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 442 | enum ata_xfer_mask { |
| 443 | ATA_MASK_PIO = ((1LU << ATA_NR_PIO_MODES) - 1) |
| 444 | << ATA_SHIFT_PIO, |
| 445 | ATA_MASK_MWDMA = ((1LU << ATA_NR_MWDMA_MODES) - 1) |
| 446 | << ATA_SHIFT_MWDMA, |
| 447 | ATA_MASK_UDMA = ((1LU << ATA_NR_UDMA_MODES) - 1) |
| 448 | << ATA_SHIFT_UDMA, |
| 449 | }; |
| 450 | |
Albert Lee | 14be71f | 2005-09-27 17:36:35 +0800 | [diff] [blame] | 451 | enum hsm_task_states { |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 452 | HSM_ST_IDLE, /* no command on going */ |
Albert Lee | 7152764 | 2007-04-02 11:28:52 +0800 | [diff] [blame] | 453 | HSM_ST_FIRST, /* (waiting the device to) |
| 454 | write CDB or first data block */ |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 455 | HSM_ST, /* (waiting the device to) transfer data */ |
| 456 | HSM_ST_LAST, /* (waiting the device to) complete command */ |
Albert Lee | c56b14d2 | 2005-09-30 19:07:39 +0800 | [diff] [blame] | 457 | HSM_ST_ERR, /* error */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | }; |
| 459 | |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 460 | enum ata_completion_errors { |
Tejun Heo | 11a56d2 | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 461 | AC_ERR_DEV = (1 << 0), /* device reported error */ |
| 462 | AC_ERR_HSM = (1 << 1), /* host state machine violation */ |
| 463 | AC_ERR_TIMEOUT = (1 << 2), /* timeout */ |
| 464 | AC_ERR_MEDIA = (1 << 3), /* media error */ |
| 465 | AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */ |
| 466 | AC_ERR_HOST_BUS = (1 << 5), /* host bus error */ |
| 467 | AC_ERR_SYSTEM = (1 << 6), /* system error */ |
| 468 | AC_ERR_INVALID = (1 << 7), /* invalid argument */ |
| 469 | AC_ERR_OTHER = (1 << 8), /* unknown */ |
Tejun Heo | 55a8e2c | 2006-11-10 18:08:10 +0900 | [diff] [blame] | 470 | AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */ |
Tejun Heo | 5335b72 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 471 | AC_ERR_NCQ = (1 << 10), /* marker for offending NCQ qc */ |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 472 | }; |
| 473 | |
Tejun Heo | c93b263 | 2010-09-01 17:50:04 +0200 | [diff] [blame] | 474 | /* |
| 475 | * Link power management policy: If you alter this, you also need to |
| 476 | * alter libata-scsi.c (for the ascii descriptions) |
| 477 | */ |
| 478 | enum ata_lpm_policy { |
| 479 | ATA_LPM_UNKNOWN, |
| 480 | ATA_LPM_MAX_POWER, |
| 481 | ATA_LPM_MED_POWER, |
| 482 | ATA_LPM_MIN_POWER, |
| 483 | }; |
| 484 | |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 485 | enum ata_lpm_hints { |
| 486 | ATA_LPM_EMPTY = (1 << 0), /* port empty/probing */ |
| 487 | ATA_LPM_HIPM = (1 << 1), /* may use HIPM */ |
| 488 | }; |
| 489 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | /* forward declarations */ |
| 491 | struct scsi_device; |
| 492 | struct ata_port_operations; |
| 493 | struct ata_port; |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 494 | struct ata_link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | struct ata_queued_cmd; |
| 496 | |
| 497 | /* typedefs */ |
Tejun Heo | 77853bf | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 498 | typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 499 | typedef int (*ata_prereset_fn_t)(struct ata_link *link, unsigned long deadline); |
| 500 | typedef int (*ata_reset_fn_t)(struct ata_link *link, unsigned int *classes, |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 501 | unsigned long deadline); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 502 | typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 504 | extern struct device_attribute dev_attr_link_power_management_policy; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 505 | extern struct device_attribute dev_attr_unload_heads; |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 506 | extern struct device_attribute dev_attr_em_message_type; |
| 507 | extern struct device_attribute dev_attr_em_message; |
| 508 | extern struct device_attribute dev_attr_sw_activity; |
| 509 | |
| 510 | enum sw_activity { |
| 511 | OFF, |
| 512 | BLINK_ON, |
| 513 | BLINK_OFF, |
| 514 | }; |
Kristen Carlson Accardi | ca77329 | 2007-10-25 00:58:59 -0400 | [diff] [blame] | 515 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 516 | #ifdef CONFIG_ATA_SFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | struct ata_ioports { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 518 | void __iomem *cmd_addr; |
| 519 | void __iomem *data_addr; |
| 520 | void __iomem *error_addr; |
| 521 | void __iomem *feature_addr; |
| 522 | void __iomem *nsect_addr; |
| 523 | void __iomem *lbal_addr; |
| 524 | void __iomem *lbam_addr; |
| 525 | void __iomem *lbah_addr; |
| 526 | void __iomem *device_addr; |
| 527 | void __iomem *status_addr; |
| 528 | void __iomem *command_addr; |
| 529 | void __iomem *altstatus_addr; |
| 530 | void __iomem *ctl_addr; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 531 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 532 | void __iomem *bmdma_addr; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 533 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 534 | void __iomem *scr_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | }; |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 536 | #endif /* CONFIG_ATA_SFF */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 538 | struct ata_host { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | spinlock_t lock; |
| 540 | struct device *dev; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 541 | void __iomem * const *iomap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | unsigned int n_ports; |
| 543 | void *private_data; |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 544 | struct ata_port_operations *ops; |
Alan Cox | 5444a6f | 2006-03-27 18:58:20 +0100 | [diff] [blame] | 545 | unsigned long flags; |
Tejun Heo | c0c362b | 2010-09-06 17:57:14 +0200 | [diff] [blame] | 546 | |
| 547 | struct mutex eh_mutex; |
| 548 | struct task_struct *eh_owner; |
| 549 | |
Alan | 032af1c | 2007-03-01 17:36:46 +0000 | [diff] [blame] | 550 | struct ata_port *simplex_claimed; /* channel owning the DMA */ |
Tejun Heo | f0eb62b | 2006-06-12 23:05:38 +0900 | [diff] [blame] | 551 | struct ata_port *ports[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | }; |
| 553 | |
| 554 | struct ata_queued_cmd { |
| 555 | struct ata_port *ap; |
| 556 | struct ata_device *dev; |
| 557 | |
| 558 | struct scsi_cmnd *scsicmd; |
| 559 | void (*scsidone)(struct scsi_cmnd *); |
| 560 | |
| 561 | struct ata_taskfile tf; |
| 562 | u8 cdb[ATAPI_CDB_LEN]; |
| 563 | |
| 564 | unsigned long flags; /* ATA_QCFLAG_xxx */ |
| 565 | unsigned int tag; |
| 566 | unsigned int n_elem; |
FUJITA Tomonori | 5825627 | 2009-02-27 17:35:43 +0900 | [diff] [blame] | 567 | unsigned int orig_n_elem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | |
| 569 | int dma_dir; |
| 570 | |
Mark Lord | 5a5dbd1 | 2007-03-16 10:22:26 -0400 | [diff] [blame] | 571 | unsigned int sect_size; |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 572 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | unsigned int nbytes; |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 574 | unsigned int extrabytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | unsigned int curbytes; |
| 576 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | struct scatterlist sgent; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 579 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | |
Richard Kennedy | b34e904 | 2010-09-10 12:19:43 +0100 | [diff] [blame] | 581 | struct scatterlist *cursg; |
| 582 | unsigned int cursg_ofs; |
| 583 | |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 584 | unsigned int err_mask; |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 585 | struct ata_taskfile result_tf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | ata_qc_cb_t complete_fn; |
| 587 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | void *private_data; |
Darrick J. Wong | 1c50dc8 | 2007-01-30 01:18:41 -0800 | [diff] [blame] | 589 | void *lldd_task; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | }; |
| 591 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 592 | struct ata_port_stats { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | unsigned long unhandled_irq; |
| 594 | unsigned long idle_irq; |
| 595 | unsigned long rw_reqbuf; |
| 596 | }; |
| 597 | |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 598 | struct ata_ering_entry { |
Tejun Heo | 3884f7b | 2007-11-27 19:28:56 +0900 | [diff] [blame] | 599 | unsigned int eflags; |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 600 | unsigned int err_mask; |
| 601 | u64 timestamp; |
| 602 | }; |
| 603 | |
| 604 | struct ata_ering { |
| 605 | int cursor; |
| 606 | struct ata_ering_entry ring[ATA_ERING_SIZE]; |
| 607 | }; |
| 608 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | struct ata_device { |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 610 | struct ata_link *link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | unsigned int devno; /* 0 or 1 */ |
Tejun Heo | 75683fe | 2007-07-05 13:31:27 +0900 | [diff] [blame] | 612 | unsigned int horkage; /* List of broken features */ |
Richard Kennedy | 6866e7b | 2008-09-22 14:47:13 -0700 | [diff] [blame] | 613 | unsigned long flags; /* ATA_DFLAG_xxx */ |
Tejun Heo | 3edebac | 2006-05-31 18:27:40 +0900 | [diff] [blame] | 614 | struct scsi_device *sdev; /* attached SCSI device */ |
Bartlomiej Zolnierkiewicz | 95514fd | 2009-11-25 18:12:48 +0100 | [diff] [blame] | 615 | void *private_data; |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 616 | #ifdef CONFIG_ATA_ACPI |
Tejun Heo | 398e078 | 2007-12-15 15:05:03 +0900 | [diff] [blame] | 617 | union acpi_object *gtf_cache; |
Tejun Heo | 110f66d | 2009-09-16 04:17:28 +0900 | [diff] [blame] | 618 | unsigned int gtf_filter; |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 619 | #endif |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 620 | struct device tdev; |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 621 | /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 622 | u64 n_sectors; /* size of device, if ATA */ |
Tejun Heo | 5920dad | 2009-07-15 17:11:41 +0900 | [diff] [blame] | 623 | u64 n_native_sectors; /* native size, if ATA */ |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 624 | unsigned int class; /* ATA_DEV_xxx */ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 625 | unsigned long unpark_deadline; |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 626 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | u8 pio_mode; |
| 628 | u8 dma_mode; |
| 629 | u8 xfer_mode; |
| 630 | unsigned int xfer_shift; /* ATA_SHIFT_xxx */ |
| 631 | |
Albert Lee | 8cbd6df | 2005-10-12 15:06:27 +0800 | [diff] [blame] | 632 | unsigned int multi_count; /* sectors count for |
| 633 | READ/WRITE MULTIPLE */ |
Tejun Heo | b00eec1 | 2006-02-12 23:32:59 +0900 | [diff] [blame] | 634 | unsigned int max_sectors; /* per-device max sectors */ |
Tejun Heo | 6e7846e | 2006-02-12 23:32:58 +0900 | [diff] [blame] | 635 | unsigned int cdb_len; |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 636 | |
Tejun Heo | acf356b | 2006-03-24 14:07:50 +0900 | [diff] [blame] | 637 | /* per-dev xfer mask */ |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 638 | unsigned long pio_mask; |
| 639 | unsigned long mwdma_mask; |
| 640 | unsigned long udma_mask; |
Tejun Heo | acf356b | 2006-03-24 14:07:50 +0900 | [diff] [blame] | 641 | |
Albert Lee | 8bf62ece | 2005-05-12 15:29:42 -0400 | [diff] [blame] | 642 | /* for CHS addressing */ |
| 643 | u16 cylinders; /* Number of cylinders */ |
| 644 | u16 heads; /* Number of heads */ |
| 645 | u16 sectors; /* Number of sectors per track */ |
Tejun Heo | 0c247c5 | 2006-05-15 20:58:19 +0900 | [diff] [blame] | 646 | |
Jeff Garzik | f7e9893 | 2008-04-29 17:47:34 -0400 | [diff] [blame] | 647 | union { |
| 648 | u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ |
| 649 | u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ |
| 650 | }; |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 651 | |
| 652 | /* error history */ |
| 653 | int spdn_cnt; |
| 654 | /* ering is CLEAR_END, read comment above CLEAR_END */ |
| 655 | struct ata_ering ering; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | }; |
| 657 | |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 658 | /* Fields between ATA_DEVICE_CLEAR_BEGIN and ATA_DEVICE_CLEAR_END are |
| 659 | * cleared to zero on ata_dev_init(). |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 660 | */ |
Tejun Heo | 99cf610 | 2009-01-29 20:31:32 +0900 | [diff] [blame] | 661 | #define ATA_DEVICE_CLEAR_BEGIN offsetof(struct ata_device, n_sectors) |
| 662 | #define ATA_DEVICE_CLEAR_END offsetof(struct ata_device, ering) |
Tejun Heo | 72fa4b7 | 2006-05-31 18:27:32 +0900 | [diff] [blame] | 663 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 664 | struct ata_eh_info { |
| 665 | struct ata_device *dev; /* offending device */ |
| 666 | u32 serror; /* SError from LLDD */ |
| 667 | unsigned int err_mask; /* port-wide err_mask */ |
| 668 | unsigned int action; /* ATA_EH_* action mask */ |
Tejun Heo | 47005f2 | 2006-06-19 18:27:23 +0900 | [diff] [blame] | 669 | unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */ |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 670 | unsigned int flags; /* ATA_EHI_* flags */ |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 671 | |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 672 | unsigned int probe_mask; |
| 673 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 674 | char desc[ATA_EH_DESC_LEN]; |
| 675 | int desc_len; |
| 676 | }; |
| 677 | |
| 678 | struct ata_eh_context { |
| 679 | struct ata_eh_info i; |
| 680 | int tries[ATA_MAX_DEVICES]; |
Tejun Heo | 87fbc5a | 2008-05-20 02:17:54 +0900 | [diff] [blame] | 681 | int cmd_timeout_idx[ATA_MAX_DEVICES] |
| 682 | [ATA_EH_CMD_TIMEOUT_TABLE_SIZE]; |
Tejun Heo | abdda73 | 2006-05-31 18:27:29 +0900 | [diff] [blame] | 683 | unsigned int classes[ATA_MAX_DEVICES]; |
| 684 | unsigned int did_probe_mask; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 685 | unsigned int unloaded_mask; |
Tejun Heo | 00115e0 | 2007-11-27 19:28:58 +0900 | [diff] [blame] | 686 | unsigned int saved_ncq_enabled; |
| 687 | u8 saved_xfer_mode[ATA_MAX_DEVICES]; |
Tejun Heo | 0a2c0f5 | 2008-05-20 02:17:52 +0900 | [diff] [blame] | 688 | /* timestamp for the last reset attempt or success */ |
| 689 | unsigned long last_reset; |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 690 | }; |
| 691 | |
Tejun Heo | 64578a3 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 692 | struct ata_acpi_drive |
| 693 | { |
| 694 | u32 pio; |
| 695 | u32 dma; |
| 696 | } __packed; |
| 697 | |
| 698 | struct ata_acpi_gtm { |
| 699 | struct ata_acpi_drive drive[2]; |
| 700 | u32 flags; |
| 701 | } __packed; |
| 702 | |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 703 | struct ata_link { |
| 704 | struct ata_port *ap; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 705 | int pmp; /* port multiplier port # */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 706 | |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 707 | struct device tdev; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 708 | unsigned int active_tag; /* active tag on this link */ |
| 709 | u32 sactive; /* active NCQ commands */ |
| 710 | |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 711 | unsigned int flags; /* ATA_LFLAG_xxx */ |
| 712 | |
Tejun Heo | d127ea7 | 2008-07-31 16:09:34 +0900 | [diff] [blame] | 713 | u32 saved_scontrol; /* SControl on probe */ |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 714 | unsigned int hw_sata_spd_limit; |
| 715 | unsigned int sata_spd_limit; |
| 716 | unsigned int sata_spd; /* current SATA PHY speed */ |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 717 | enum ata_lpm_policy lpm_policy; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 718 | |
| 719 | /* record runtime error info, protected by host_set lock */ |
| 720 | struct ata_eh_info eh_info; |
| 721 | /* EH context */ |
| 722 | struct ata_eh_context eh_context; |
| 723 | |
| 724 | struct ata_device device[ATA_MAX_DEVICES]; |
| 725 | }; |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 726 | #define ATA_LINK_CLEAR_BEGIN offsetof(struct ata_link, active_tag) |
| 727 | #define ATA_LINK_CLEAR_END offsetof(struct ata_link, device[0]) |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 728 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | struct ata_port { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 730 | struct Scsi_Host *scsi_host; /* our co-allocated scsi host */ |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 731 | struct ata_port_operations *ops; |
Jeff Garzik | ba6a130 | 2006-06-22 23:46:10 -0400 | [diff] [blame] | 732 | spinlock_t *lock; |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 733 | /* Flags owned by the EH context. Only EH should touch these once the |
| 734 | port is active */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | unsigned long flags; /* ATA_FLAG_xxx */ |
Alan Cox | e3cf95d | 2009-04-09 17:31:17 +0100 | [diff] [blame] | 736 | /* Flags that change dynamically, protected by ap->lock */ |
Tejun Heo | b51e9e5 | 2006-06-29 01:29:30 +0900 | [diff] [blame] | 737 | unsigned int pflags; /* ATA_PFLAG_xxx */ |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 738 | unsigned int print_id; /* user visible unique port ID */ |
| 739 | unsigned int port_no; /* 0 based port no. inside the host */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 741 | #ifdef CONFIG_ATA_SFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | u8 ctl; /* cache of ATA control register */ |
| 744 | u8 last_ctl; /* Cache last written value */ |
Gwendal Grignou | ea3c645 | 2010-08-31 16:20:36 -0700 | [diff] [blame] | 745 | struct ata_link* sff_pio_task_link; /* link currently used */ |
Tejun Heo | c429137 | 2010-05-10 21:41:38 +0200 | [diff] [blame] | 746 | struct delayed_work sff_pio_task; |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 747 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | f60d701 | 2010-05-10 21:41:41 +0200 | [diff] [blame] | 748 | struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ |
| 749 | dma_addr_t bmdma_prd_dma; /* and its DMA mapping */ |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 750 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 751 | #endif /* CONFIG_ATA_SFF */ |
| 752 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | unsigned int pio_mask; |
| 754 | unsigned int mwdma_mask; |
| 755 | unsigned int udma_mask; |
| 756 | unsigned int cbl; /* cable type; ATA_CBL_xxx */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | |
| 758 | struct ata_queued_cmd qcmd[ATA_MAX_QUEUE]; |
Tejun Heo | 8a8bc22 | 2008-11-10 14:48:21 +0900 | [diff] [blame] | 759 | unsigned long qc_allocated; |
Tejun Heo | dedaf2b | 2006-05-15 21:03:43 +0900 | [diff] [blame] | 760 | unsigned int qc_active; |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 761 | int nr_active_links; /* #links with active qcs */ |
Tejun Heo | dedaf2b | 2006-05-15 21:03:43 +0900 | [diff] [blame] | 762 | |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 763 | struct ata_link link; /* host default link */ |
| 764 | struct ata_link *slave_link; /* see ata_slave_link_init() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 766 | int nr_pmp_links; /* nr of available PMP links */ |
| 767 | struct ata_link *pmp_link; /* array of PMP links */ |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 768 | struct ata_link *excl_link; /* for PMP qc exclusion */ |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 769 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 770 | struct ata_port_stats stats; |
| 771 | struct ata_host *host; |
Brian King | 2f1f610 | 2006-03-23 17:30:15 -0600 | [diff] [blame] | 772 | struct device *dev; |
Gwendal Grignou | d902747 | 2010-05-25 12:31:38 -0700 | [diff] [blame] | 773 | struct device tdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | |
Tejun Heo | ad72cf9 | 2010-07-02 10:03:52 +0200 | [diff] [blame] | 775 | struct mutex scsi_scan_mutex; |
David Howells | 52bad64 | 2006-11-22 14:54:01 +0000 | [diff] [blame] | 776 | struct delayed_work hotplug_task; |
Jeff Garzik | 3b01b8a | 2006-06-12 00:22:04 -0400 | [diff] [blame] | 777 | struct work_struct scsi_rescan_task; |
Tejun Heo | 86e45b6 | 2006-03-05 15:29:09 +0900 | [diff] [blame] | 778 | |
Albert Lee | 14be71f | 2005-09-27 17:36:35 +0800 | [diff] [blame] | 779 | unsigned int hsm_task_state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 781 | u32 msg_enable; |
Tejun Heo | a72ec4c | 2006-01-23 13:09:37 +0900 | [diff] [blame] | 782 | struct list_head eh_done_q; |
Tejun Heo | c6cf9e9 | 2006-05-31 18:27:27 +0900 | [diff] [blame] | 783 | wait_queue_head_t eh_wait_q; |
Tejun Heo | a1e10f7 | 2007-08-18 13:28:49 +0900 | [diff] [blame] | 784 | int eh_tries; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 785 | struct completion park_req_pending; |
Randy Dunlap | bfd6057 | 2006-01-17 19:34:42 -0500 | [diff] [blame] | 786 | |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 787 | pm_message_t pm_mesg; |
| 788 | int *pm_result; |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 789 | enum ata_lpm_policy target_lpm_policy; |
Tejun Heo | 500530f | 2006-07-03 16:07:27 +0900 | [diff] [blame] | 790 | |
Tejun Heo | 5ddf24c | 2007-07-16 14:29:41 +0900 | [diff] [blame] | 791 | struct timer_list fastdrain_timer; |
| 792 | unsigned long fastdrain_cnt; |
| 793 | |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 794 | int em_message_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | void *private_data; |
Tejun Heo | fe635c7 | 2006-05-15 20:57:35 +0900 | [diff] [blame] | 796 | |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 797 | #ifdef CONFIG_ATA_ACPI |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 798 | struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */ |
Tejun Heo | fafbae8 | 2007-05-15 03:28:16 +0900 | [diff] [blame] | 799 | #endif |
Tejun Heo | 84bda12 | 2009-03-02 18:53:26 +0900 | [diff] [blame] | 800 | /* owned by EH */ |
| 801 | u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | }; |
| 803 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 804 | /* The following initializer overrides a method to NULL whether one of |
| 805 | * its parent has the method defined or not. This is equivalent to |
| 806 | * ERR_PTR(-ENOENT). Unfortunately, ERR_PTR doesn't render a constant |
| 807 | * expression and thus can't be used as an initializer. |
| 808 | */ |
| 809 | #define ATA_OP_NULL (void *)(unsigned long)(-ENOENT) |
| 810 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | struct ata_port_operations { |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 812 | /* |
| 813 | * Command execution |
| 814 | */ |
| 815 | int (*qc_defer)(struct ata_queued_cmd *qc); |
| 816 | int (*check_atapi_dma)(struct ata_queued_cmd *qc); |
| 817 | void (*qc_prep)(struct ata_queued_cmd *qc); |
| 818 | unsigned int (*qc_issue)(struct ata_queued_cmd *qc); |
Tejun Heo | 22183bf | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 819 | bool (*qc_fill_rtf)(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 821 | /* |
| 822 | * Configuration and exception handling |
| 823 | */ |
| 824 | int (*cable_detect)(struct ata_port *ap); |
| 825 | unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask); |
| 826 | void (*set_piomode)(struct ata_port *ap, struct ata_device *dev); |
| 827 | void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev); |
| 828 | int (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev); |
Alan Cox | 963e497 | 2008-07-24 17:16:06 +0100 | [diff] [blame] | 829 | unsigned int (*read_id)(struct ata_device *dev, struct ata_taskfile *tf, u16 *id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 831 | void (*dev_config)(struct ata_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 833 | void (*freeze)(struct ata_port *ap); |
| 834 | void (*thaw)(struct ata_port *ap); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 835 | ata_prereset_fn_t prereset; |
| 836 | ata_reset_fn_t softreset; |
| 837 | ata_reset_fn_t hardreset; |
| 838 | ata_postreset_fn_t postreset; |
| 839 | ata_prereset_fn_t pmp_prereset; |
| 840 | ata_reset_fn_t pmp_softreset; |
| 841 | ata_reset_fn_t pmp_hardreset; |
| 842 | ata_postreset_fn_t pmp_postreset; |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 843 | void (*error_handler)(struct ata_port *ap); |
Alan Cox | c96f173 | 2009-03-24 10:23:46 +0000 | [diff] [blame] | 844 | void (*lost_interrupt)(struct ata_port *ap); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 845 | void (*post_internal_cmd)(struct ata_queued_cmd *qc); |
Dan Williams | e4a9c37 | 2012-06-21 23:25:27 -0700 | [diff] [blame] | 846 | void (*sched_eh)(struct ata_port *ap); |
| 847 | void (*end_eh)(struct ata_port *ap); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 848 | |
| 849 | /* |
| 850 | * Optional features |
| 851 | */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 852 | int (*scr_read)(struct ata_link *link, unsigned int sc_reg, u32 *val); |
| 853 | int (*scr_write)(struct ata_link *link, unsigned int sc_reg, u32 val); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 854 | void (*pmp_attach)(struct ata_port *ap); |
| 855 | void (*pmp_detach)(struct ata_port *ap); |
Tejun Heo | 6b7ae95 | 2010-09-01 17:50:06 +0200 | [diff] [blame] | 856 | int (*set_lpm)(struct ata_link *link, enum ata_lpm_policy policy, |
| 857 | unsigned hints); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 858 | |
| 859 | /* |
| 860 | * Start, stop, suspend and resume |
| 861 | */ |
| 862 | int (*port_suspend)(struct ata_port *ap, pm_message_t mesg); |
| 863 | int (*port_resume)(struct ata_port *ap); |
| 864 | int (*port_start)(struct ata_port *ap); |
| 865 | void (*port_stop)(struct ata_port *ap); |
| 866 | void (*host_stop)(struct ata_host *host); |
| 867 | |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 868 | #ifdef CONFIG_ATA_SFF |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 869 | /* |
| 870 | * SFF / taskfile oriented ops |
| 871 | */ |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 872 | void (*sff_dev_select)(struct ata_port *ap, unsigned int device); |
Sergei Shtylyov | 41dec29 | 2010-05-07 22:47:50 +0400 | [diff] [blame] | 873 | void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 874 | u8 (*sff_check_status)(struct ata_port *ap); |
| 875 | u8 (*sff_check_altstatus)(struct ata_port *ap); |
| 876 | void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf); |
| 877 | void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf); |
| 878 | void (*sff_exec_command)(struct ata_port *ap, |
| 879 | const struct ata_taskfile *tf); |
| 880 | unsigned int (*sff_data_xfer)(struct ata_device *dev, |
| 881 | unsigned char *buf, unsigned int buflen, int rw); |
Sergei Shtylyov | e42a542 | 2010-05-07 22:49:02 +0400 | [diff] [blame] | 882 | void (*sff_irq_on)(struct ata_port *); |
Tejun Heo | 2794362 | 2010-01-19 10:49:19 +0900 | [diff] [blame] | 883 | bool (*sff_irq_check)(struct ata_port *); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 884 | void (*sff_irq_clear)(struct ata_port *); |
Tejun Heo | 8244cd0 | 2010-05-10 21:41:36 +0200 | [diff] [blame] | 885 | void (*sff_drain_fifo)(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 887 | #ifdef CONFIG_ATA_BMDMA |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 888 | void (*bmdma_setup)(struct ata_queued_cmd *qc); |
| 889 | void (*bmdma_start)(struct ata_queued_cmd *qc); |
| 890 | void (*bmdma_stop)(struct ata_queued_cmd *qc); |
| 891 | u8 (*bmdma_status)(struct ata_port *ap); |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 892 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 893 | #endif /* CONFIG_ATA_SFF */ |
Tejun Heo | c19ba8a | 2006-01-24 17:05:22 +0900 | [diff] [blame] | 894 | |
Kristen Carlson Accardi | 18f7ba4 | 2008-06-03 10:33:55 -0700 | [diff] [blame] | 895 | ssize_t (*em_show)(struct ata_port *ap, char *buf); |
| 896 | ssize_t (*em_store)(struct ata_port *ap, const char *message, |
| 897 | size_t size); |
| 898 | ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf); |
| 899 | ssize_t (*sw_activity_store)(struct ata_device *dev, |
| 900 | enum sw_activity val); |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 901 | /* |
| 902 | * Obsolete |
Tejun Heo | 9ec957f | 2006-05-15 20:57:58 +0900 | [diff] [blame] | 903 | */ |
Tejun Heo | c1bc899 | 2008-03-25 12:22:47 +0900 | [diff] [blame] | 904 | void (*phy_reset)(struct ata_port *ap); |
| 905 | void (*eng_timeout)(struct ata_port *ap); |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 906 | |
| 907 | /* |
| 908 | * ->inherits must be the last field and all the preceding |
| 909 | * fields must be pointers. |
| 910 | */ |
| 911 | const struct ata_port_operations *inherits; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | }; |
| 913 | |
| 914 | struct ata_port_info { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 915 | unsigned long flags; |
Tejun Heo | 0c88758 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 916 | unsigned long link_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | unsigned long pio_mask; |
| 918 | unsigned long mwdma_mask; |
| 919 | unsigned long udma_mask; |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 920 | struct ata_port_operations *port_ops; |
Alan Cox | e99f8b5 | 2005-11-08 14:09:44 +0000 | [diff] [blame] | 921 | void *private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | }; |
| 923 | |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 924 | struct ata_timing { |
| 925 | unsigned short mode; /* ATA mode */ |
| 926 | unsigned short setup; /* t1 */ |
| 927 | unsigned short act8b; /* t2 for 8-bit I/O */ |
| 928 | unsigned short rec8b; /* t2i for 8-bit I/O */ |
| 929 | unsigned short cyc8b; /* t0 for 8-bit I/O */ |
| 930 | unsigned short active; /* t2 or tD */ |
| 931 | unsigned short recover; /* t2i or tK */ |
David Daney | 3ada9c1 | 2009-01-15 17:45:31 -0800 | [diff] [blame] | 932 | unsigned short dmack_hold; /* tj */ |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 933 | unsigned short cycle; /* t0 */ |
| 934 | unsigned short udma; /* t2CYCTYP/2 */ |
| 935 | }; |
| 936 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 937 | /* |
| 938 | * Core layer - drivers/ata/libata-core.c |
| 939 | */ |
Tejun Heo | e9c8391 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 940 | extern const unsigned long sata_deb_timing_normal[]; |
| 941 | extern const unsigned long sata_deb_timing_hotplug[]; |
| 942 | extern const unsigned long sata_deb_timing_long[]; |
| 943 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 944 | extern struct ata_port_operations ata_dummy_port_ops; |
Tejun Heo | 21b0ad4 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 945 | extern const struct ata_port_info ata_dummy_port_info; |
Tejun Heo | dd5b06c | 2006-08-10 16:59:12 +0900 | [diff] [blame] | 946 | |
Tejun Heo | e9c8391 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 947 | static inline const unsigned long * |
| 948 | sata_ehc_deb_timing(struct ata_eh_context *ehc) |
| 949 | { |
| 950 | if (ehc->i.flags & ATA_EHI_HOTPLUGGED) |
| 951 | return sata_deb_timing_hotplug; |
| 952 | else |
| 953 | return sata_deb_timing_normal; |
| 954 | } |
Tejun Heo | d7bb4cc | 2006-05-31 18:27:46 +0900 | [diff] [blame] | 955 | |
Tejun Heo | dd5b06c | 2006-08-10 16:59:12 +0900 | [diff] [blame] | 956 | static inline int ata_port_is_dummy(struct ata_port *ap) |
| 957 | { |
| 958 | return ap->ops == &ata_dummy_port_ops; |
| 959 | } |
| 960 | |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 961 | extern int sata_set_spd(struct ata_link *link); |
Tejun Heo | 0aa1113 | 2008-04-07 22:47:18 +0900 | [diff] [blame] | 962 | extern int ata_std_prereset(struct ata_link *link, unsigned long deadline); |
Tejun Heo | aa2731a | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 963 | extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, |
| 964 | int (*check_ready)(struct ata_link *link)); |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 965 | extern int sata_link_debounce(struct ata_link *link, |
| 966 | const unsigned long *params, unsigned long deadline); |
| 967 | extern int sata_link_resume(struct ata_link *link, const unsigned long *params, |
| 968 | unsigned long deadline); |
Tejun Heo | 1152b26 | 2010-09-01 17:50:05 +0200 | [diff] [blame] | 969 | extern int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy, |
| 970 | bool spm_wakeup); |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 971 | extern int sata_link_hardreset(struct ata_link *link, |
Tejun Heo | 9dadd45 | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 972 | const unsigned long *timing, unsigned long deadline, |
| 973 | bool *online, int (*check_ready)(struct ata_link *)); |
Tejun Heo | 57c9efd | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 974 | extern int sata_std_hardreset(struct ata_link *link, unsigned int *class, |
| 975 | unsigned long deadline); |
Tejun Heo | 203c75b | 2008-04-07 22:47:18 +0900 | [diff] [blame] | 976 | extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); |
Jeff Garzik | 2855568 | 2007-10-11 17:12:35 -0400 | [diff] [blame] | 977 | |
Tejun Heo | f318719 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 978 | extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports); |
Tejun Heo | f5cda25 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 979 | extern struct ata_host *ata_host_alloc_pinfo(struct device *dev, |
| 980 | const struct ata_port_info * const * ppi, int n_ports); |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 981 | extern int ata_slave_link_init(struct ata_port *ap); |
Tejun Heo | ecef725 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 982 | extern int ata_host_start(struct ata_host *host); |
Tejun Heo | f318719 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 983 | extern int ata_host_register(struct ata_host *host, |
| 984 | struct scsi_host_template *sht); |
Tejun Heo | f5cda25 | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 985 | extern int ata_host_activate(struct ata_host *host, int irq, |
| 986 | irq_handler_t irq_handler, unsigned long irq_flags, |
| 987 | struct scsi_host_template *sht); |
Tejun Heo | 0529c15 | 2007-01-20 16:00:26 +0900 | [diff] [blame] | 988 | extern void ata_host_detach(struct ata_host *host); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 989 | extern void ata_host_init(struct ata_host *, struct device *, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 990 | unsigned long, struct ata_port_operations *); |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 991 | extern int ata_scsi_detect(struct scsi_host_template *sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg); |
Jeff Garzik | f281233 | 2010-11-16 02:10:29 -0500 | [diff] [blame] | 993 | extern int ata_scsi_queuecmd(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
Jeff Garzik | 94be9a5 | 2009-01-16 10:17:09 -0500 | [diff] [blame] | 994 | extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev, |
| 995 | int cmd, void __user *arg); |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 996 | extern void ata_sas_port_destroy(struct ata_port *); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 997 | extern struct ata_port *ata_sas_port_alloc(struct ata_host *, |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 998 | struct ata_port_info *, struct Scsi_Host *); |
Dan Williams | b202445 | 2012-03-21 21:09:07 -0700 | [diff] [blame] | 999 | extern void ata_sas_async_probe(struct ata_port *ap); |
| 1000 | extern int ata_sas_sync_probe(struct ata_port *ap); |
Brian King | 8028916 | 2006-08-07 14:27:31 -0500 | [diff] [blame] | 1001 | extern int ata_sas_port_init(struct ata_port *); |
| 1002 | extern int ata_sas_port_start(struct ata_port *ap); |
| 1003 | extern void ata_sas_port_stop(struct ata_port *ap); |
| 1004 | extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *); |
Jeff Garzik | b27dcfb | 2010-11-17 22:56:48 -0500 | [diff] [blame] | 1005 | extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap); |
Tejun Heo | 936fd73 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1006 | extern int sata_scr_valid(struct ata_link *link); |
| 1007 | extern int sata_scr_read(struct ata_link *link, int reg, u32 *val); |
| 1008 | extern int sata_scr_write(struct ata_link *link, int reg, u32 val); |
| 1009 | extern int sata_scr_write_flush(struct ata_link *link, int reg, u32 val); |
Tejun Heo | b5b3fa3 | 2008-07-31 17:02:42 +0900 | [diff] [blame] | 1010 | extern bool ata_link_online(struct ata_link *link); |
| 1011 | extern bool ata_link_offline(struct ata_link *link); |
Tejun Heo | 6ffa01d | 2007-03-02 17:32:47 +0900 | [diff] [blame] | 1012 | #ifdef CONFIG_PM |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 1013 | extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg); |
| 1014 | extern void ata_host_resume(struct ata_host *host); |
Tejun Heo | 6ffa01d | 2007-03-02 17:32:47 +0900 | [diff] [blame] | 1015 | #endif |
Jeff Garzik | 67846b3 | 2005-10-05 02:58:32 -0400 | [diff] [blame] | 1016 | extern int ata_ratelimit(void); |
Tejun Heo | 97750ce | 2010-09-06 17:56:29 +0200 | [diff] [blame] | 1017 | extern void ata_msleep(struct ata_port *ap, unsigned int msecs); |
| 1018 | extern u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask, |
| 1019 | u32 val, unsigned long interval, unsigned long timeout); |
Tejun Heo | 436d34b | 2008-04-02 17:28:46 +0900 | [diff] [blame] | 1020 | extern int atapi_cmd_type(u8 opcode); |
Tejun Heo | 9977126 | 2007-07-16 14:29:38 +0900 | [diff] [blame] | 1021 | extern void ata_tf_to_fis(const struct ata_taskfile *tf, |
| 1022 | u8 pmp, int is_cmd, u8 *fis); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1023 | extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf); |
Tejun Heo | 7dc951a | 2007-11-27 19:43:42 +0900 | [diff] [blame] | 1024 | extern unsigned long ata_pack_xfermask(unsigned long pio_mask, |
| 1025 | unsigned long mwdma_mask, unsigned long udma_mask); |
| 1026 | extern void ata_unpack_xfermask(unsigned long xfer_mask, |
| 1027 | unsigned long *pio_mask, unsigned long *mwdma_mask, |
| 1028 | unsigned long *udma_mask); |
| 1029 | extern u8 ata_xfer_mask2mode(unsigned long xfer_mask); |
| 1030 | extern unsigned long ata_xfer_mode2mask(u8 xfer_mode); |
| 1031 | extern int ata_xfer_mode2shift(unsigned long xfer_mode); |
| 1032 | extern const char *ata_mode_string(unsigned long xfer_mask); |
| 1033 | extern unsigned long ata_id_xfermask(const u16 *id); |
Tejun Heo | 31cc23b | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1034 | extern int ata_std_qc_defer(struct ata_queued_cmd *qc); |
Brian King | e46834c | 2006-03-17 17:04:03 -0600 | [diff] [blame] | 1035 | extern void ata_noop_qc_prep(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, |
| 1037 | unsigned int n_elem); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1038 | extern unsigned int ata_dev_classify(const struct ata_taskfile *tf); |
Alan | 10305f0 | 2007-02-20 18:01:59 +0000 | [diff] [blame] | 1039 | extern void ata_dev_disable(struct ata_device *adev); |
Tejun Heo | 6a62a04 | 2006-02-13 10:02:46 +0900 | [diff] [blame] | 1040 | extern void ata_id_string(const u16 *id, unsigned char *s, |
| 1041 | unsigned int ofs, unsigned int len); |
| 1042 | extern void ata_id_c_string(const u16 *id, unsigned char *s, |
| 1043 | unsigned int ofs, unsigned int len); |
Alan Cox | 963e497 | 2008-07-24 17:16:06 +0100 | [diff] [blame] | 1044 | extern unsigned int ata_do_dev_read_id(struct ata_device *dev, |
| 1045 | struct ata_taskfile *tf, u16 *id); |
Tejun Heo | f686bcb | 2006-05-15 20:58:05 +0900 | [diff] [blame] | 1046 | extern void ata_qc_complete(struct ata_queued_cmd *qc); |
Tejun Heo | 79f97da | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 1047 | extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active); |
Jeff Garzik | b27dcfb | 2010-11-17 22:56:48 -0500 | [diff] [blame] | 1048 | extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | extern int ata_std_bios_param(struct scsi_device *sdev, |
| 1050 | struct block_device *bdev, |
| 1051 | sector_t capacity, int geom[]); |
Tejun Heo | d8d9129 | 2010-05-15 20:09:34 +0200 | [diff] [blame] | 1052 | extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | extern int ata_scsi_slave_config(struct scsi_device *sdev); |
Tejun Heo | 83c47bc | 2006-05-31 18:28:07 +0900 | [diff] [blame] | 1054 | extern void ata_scsi_slave_destroy(struct scsi_device *sdev); |
Tejun Heo | a6e6ce8 | 2006-05-15 21:03:48 +0900 | [diff] [blame] | 1055 | extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, |
Mike Christie | e881a17 | 2009-10-15 17:46:39 -0700 | [diff] [blame] | 1056 | int queue_depth, int reason); |
Dan Williams | f6e6703 | 2011-09-20 15:10:33 -0700 | [diff] [blame] | 1057 | extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, |
| 1058 | int queue_depth, int reason); |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1059 | extern struct ata_device *ata_dev_pair(struct ata_device *adev); |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1060 | extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); |
James Bottomley | 0e0b494c | 2011-01-23 09:42:50 -0600 | [diff] [blame] | 1061 | extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); |
| 1062 | extern void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap, struct list_head *eh_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | |
Alan Cox | be0d18d | 2007-03-06 02:37:56 -0800 | [diff] [blame] | 1064 | extern int ata_cable_40wire(struct ata_port *ap); |
| 1065 | extern int ata_cable_80wire(struct ata_port *ap); |
| 1066 | extern int ata_cable_sata(struct ata_port *ap); |
Tejun Heo | c88f90c | 2007-11-27 19:43:48 +0900 | [diff] [blame] | 1067 | extern int ata_cable_ignore(struct ata_port *ap); |
Alan Cox | be0d18d | 2007-03-06 02:37:56 -0800 | [diff] [blame] | 1068 | extern int ata_cable_unknown(struct ata_port *ap); |
| 1069 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1070 | /* Timing helpers */ |
Alan Cox | 1bc4ccf | 2006-01-09 17:18:14 +0000 | [diff] [blame] | 1071 | extern unsigned int ata_pio_need_iordy(const struct ata_device *); |
Tejun Heo | 6357357 | 2007-11-27 19:43:39 +0900 | [diff] [blame] | 1072 | extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode); |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1073 | extern int ata_timing_compute(struct ata_device *, unsigned short, |
| 1074 | struct ata_timing *, int, int); |
| 1075 | extern void ata_timing_merge(const struct ata_timing *, |
| 1076 | const struct ata_timing *, struct ata_timing *, |
| 1077 | unsigned int); |
Tejun Heo | a0f79b9 | 2007-12-18 16:33:05 +0900 | [diff] [blame] | 1078 | extern u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle); |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1079 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1080 | /* PCI */ |
| 1081 | #ifdef CONFIG_PCI |
| 1082 | struct pci_dev; |
| 1083 | |
| 1084 | struct pci_bits { |
| 1085 | unsigned int reg; /* PCI config register to read */ |
| 1086 | unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */ |
| 1087 | unsigned long mask; |
| 1088 | unsigned long val; |
Alan Cox | 452503f | 2005-10-21 19:01:32 -0400 | [diff] [blame] | 1089 | }; |
| 1090 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1091 | extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits); |
| 1092 | extern void ata_pci_remove_one(struct pci_dev *pdev); |
| 1093 | |
| 1094 | #ifdef CONFIG_PM |
| 1095 | extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg); |
| 1096 | extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev); |
| 1097 | extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); |
| 1098 | extern int ata_pci_device_resume(struct pci_dev *pdev); |
| 1099 | #endif /* CONFIG_PM */ |
| 1100 | #endif /* CONFIG_PCI */ |
| 1101 | |
| 1102 | /* |
| 1103 | * ACPI - drivers/ata/libata-acpi.c |
| 1104 | */ |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1105 | #ifdef CONFIG_ATA_ACPI |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 1106 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
| 1107 | { |
| 1108 | if (ap->pflags & ATA_PFLAG_INIT_GTM_VALID) |
| 1109 | return &ap->__acpi_init_gtm; |
| 1110 | return NULL; |
| 1111 | } |
Tejun Heo | 0d02f0b | 2007-12-15 15:04:57 +0900 | [diff] [blame] | 1112 | int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm); |
| 1113 | int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm); |
Tejun Heo | 7c77fa4 | 2007-12-18 16:33:03 +0900 | [diff] [blame] | 1114 | unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev, |
| 1115 | const struct ata_acpi_gtm *gtm); |
Matthew Garrett | 30dcf76 | 2012-06-25 16:13:04 +0800 | [diff] [blame] | 1116 | acpi_handle ata_ap_acpi_handle(struct ata_port *ap); |
| 1117 | acpi_handle ata_dev_acpi_handle(struct ata_device *dev); |
Tejun Heo | 021ee9a | 2007-12-18 16:33:06 +0900 | [diff] [blame] | 1118 | int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm); |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1119 | #else |
Tejun Heo | c05e6ff | 2007-12-15 15:05:02 +0900 | [diff] [blame] | 1120 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
| 1121 | { |
| 1122 | return NULL; |
| 1123 | } |
Tejun Heo | 7c77fa4 | 2007-12-18 16:33:03 +0900 | [diff] [blame] | 1124 | |
| 1125 | static inline int ata_acpi_stm(const struct ata_port *ap, |
| 1126 | struct ata_acpi_gtm *stm) |
| 1127 | { |
| 1128 | return -ENOSYS; |
| 1129 | } |
| 1130 | |
| 1131 | static inline int ata_acpi_gtm(const struct ata_port *ap, |
| 1132 | struct ata_acpi_gtm *stm) |
| 1133 | { |
| 1134 | return -ENOSYS; |
| 1135 | } |
| 1136 | |
| 1137 | static inline unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev, |
| 1138 | const struct ata_acpi_gtm *gtm) |
| 1139 | { |
| 1140 | return 0; |
| 1141 | } |
Tejun Heo | 021ee9a | 2007-12-18 16:33:06 +0900 | [diff] [blame] | 1142 | |
| 1143 | static inline int ata_acpi_cbl_80wire(struct ata_port *ap, |
| 1144 | const struct ata_acpi_gtm *gtm) |
| 1145 | { |
| 1146 | return 0; |
| 1147 | } |
Alan Cox | e1ddb4b | 2007-08-16 02:33:36 -0400 | [diff] [blame] | 1148 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1150 | /* |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1151 | * EH - drivers/ata/libata-eh.c |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1152 | */ |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1153 | extern void ata_port_schedule_eh(struct ata_port *ap); |
Dan Williams | 81c757b | 2011-12-02 16:07:01 -0800 | [diff] [blame] | 1154 | extern void ata_port_wait_eh(struct ata_port *ap); |
Tejun Heo | dbd8261 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1155 | extern int ata_link_abort(struct ata_link *link); |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1156 | extern int ata_port_abort(struct ata_port *ap); |
Tejun Heo | e318049 | 2006-05-15 20:58:09 +0900 | [diff] [blame] | 1157 | extern int ata_port_freeze(struct ata_port *ap); |
Tejun Heo | 7d77b24 | 2007-09-23 13:14:13 +0900 | [diff] [blame] | 1158 | extern int sata_async_notification(struct ata_port *ap); |
Tejun Heo | e318049 | 2006-05-15 20:58:09 +0900 | [diff] [blame] | 1159 | |
| 1160 | extern void ata_eh_freeze_port(struct ata_port *ap); |
| 1161 | extern void ata_eh_thaw_port(struct ata_port *ap); |
Tejun Heo | 7b70fc0 | 2006-05-15 20:58:07 +0900 | [diff] [blame] | 1162 | |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1163 | extern void ata_eh_qc_complete(struct ata_queued_cmd *qc); |
| 1164 | extern void ata_eh_qc_retry(struct ata_queued_cmd *qc); |
Mark Lord | 10acf3b | 2008-05-02 02:14:53 -0400 | [diff] [blame] | 1165 | extern void ata_eh_analyze_ncq_error(struct ata_link *link); |
Tejun Heo | ece1d63 | 2006-04-02 18:51:53 +0900 | [diff] [blame] | 1166 | |
Tejun Heo | f5914a4 | 2006-05-31 18:27:48 +0900 | [diff] [blame] | 1167 | extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, |
| 1168 | ata_reset_fn_t softreset, ata_reset_fn_t hardreset, |
| 1169 | ata_postreset_fn_t postreset); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 1170 | extern void ata_std_error_handler(struct ata_port *ap); |
Dan Williams | e4a9c37 | 2012-06-21 23:25:27 -0700 | [diff] [blame] | 1171 | extern void ata_std_sched_eh(struct ata_port *ap); |
| 1172 | extern void ata_std_end_eh(struct ata_port *ap); |
Kristen Carlson Accardi | 8a745f1 | 2011-03-04 10:24:11 -0800 | [diff] [blame] | 1173 | extern int ata_link_nr_enabled(struct ata_link *link); |
Tejun Heo | 022bdb0 | 2006-05-15 20:58:22 +0900 | [diff] [blame] | 1174 | |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1175 | /* |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1176 | * Base operations to inherit from and initializers for sht |
| 1177 | * |
| 1178 | * Operations |
| 1179 | * |
| 1180 | * base : Common to all libata drivers. |
| 1181 | * sata : SATA controllers w/ native interface. |
| 1182 | * pmp : SATA controllers w/ PMP support. |
| 1183 | * sff : SFF ATA controllers w/o BMDMA support. |
| 1184 | * bmdma : SFF ATA controllers w/ BMDMA support. |
| 1185 | * |
| 1186 | * sht initializers |
| 1187 | * |
| 1188 | * BASE : Common to all libata drivers. The user must set |
| 1189 | * sg_tablesize and dma_boundary. |
| 1190 | * PIO : SFF ATA controllers w/ only PIO support. |
| 1191 | * BMDMA : SFF ATA controllers w/ BMDMA support. sg_tablesize and |
| 1192 | * dma_boundary are set to BMDMA limits. |
| 1193 | * NCQ : SATA controllers supporting NCQ. The user must set |
| 1194 | * sg_tablesize, dma_boundary and can_queue. |
| 1195 | */ |
| 1196 | extern const struct ata_port_operations ata_base_port_ops; |
| 1197 | extern const struct ata_port_operations sata_port_ops; |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1198 | extern struct device_attribute *ata_common_sdev_attrs[]; |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1199 | |
| 1200 | #define ATA_BASE_SHT(drv_name) \ |
| 1201 | .module = THIS_MODULE, \ |
| 1202 | .name = drv_name, \ |
| 1203 | .ioctl = ata_scsi_ioctl, \ |
| 1204 | .queuecommand = ata_scsi_queuecmd, \ |
| 1205 | .can_queue = ATA_DEF_QUEUE, \ |
| 1206 | .this_id = ATA_SHT_THIS_ID, \ |
| 1207 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, \ |
| 1208 | .emulated = ATA_SHT_EMULATED, \ |
| 1209 | .use_clustering = ATA_SHT_USE_CLUSTERING, \ |
| 1210 | .proc_name = drv_name, \ |
| 1211 | .slave_configure = ata_scsi_slave_config, \ |
| 1212 | .slave_destroy = ata_scsi_slave_destroy, \ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1213 | .bios_param = ata_std_bios_param, \ |
Tejun Heo | d8d9129 | 2010-05-15 20:09:34 +0200 | [diff] [blame] | 1214 | .unlock_native_capacity = ata_scsi_unlock_native_capacity, \ |
Elias Oltmanns | 45fabbb | 2008-09-21 11:54:08 +0200 | [diff] [blame] | 1215 | .sdev_attrs = ata_common_sdev_attrs |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1216 | |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 1217 | #define ATA_NCQ_SHT(drv_name) \ |
| 1218 | ATA_BASE_SHT(drv_name), \ |
| 1219 | .change_queue_depth = ata_scsi_change_queue_depth |
| 1220 | |
| 1221 | /* |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1222 | * PMP helpers |
| 1223 | */ |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1224 | #ifdef CONFIG_SATA_PMP |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1225 | static inline bool sata_pmp_supported(struct ata_port *ap) |
| 1226 | { |
| 1227 | return ap->flags & ATA_FLAG_PMP; |
| 1228 | } |
| 1229 | |
| 1230 | static inline bool sata_pmp_attached(struct ata_port *ap) |
| 1231 | { |
| 1232 | return ap->nr_pmp_links != 0; |
| 1233 | } |
| 1234 | |
| 1235 | static inline int ata_is_host_link(const struct ata_link *link) |
| 1236 | { |
Tejun Heo | b1c7291 | 2008-07-31 17:02:43 +0900 | [diff] [blame] | 1237 | return link == &link->ap->link || link == link->ap->slave_link; |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1238 | } |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1239 | #else /* CONFIG_SATA_PMP */ |
| 1240 | static inline bool sata_pmp_supported(struct ata_port *ap) |
| 1241 | { |
| 1242 | return false; |
| 1243 | } |
| 1244 | |
| 1245 | static inline bool sata_pmp_attached(struct ata_port *ap) |
| 1246 | { |
| 1247 | return false; |
| 1248 | } |
| 1249 | |
| 1250 | static inline int ata_is_host_link(const struct ata_link *link) |
| 1251 | { |
| 1252 | return 1; |
| 1253 | } |
| 1254 | #endif /* CONFIG_SATA_PMP */ |
Tejun Heo | 071f44b | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1255 | |
| 1256 | static inline int sata_srst_pmp(struct ata_link *link) |
| 1257 | { |
| 1258 | if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) |
| 1259 | return SATA_PMP_CTRL_PORT; |
| 1260 | return link->pmp; |
| 1261 | } |
| 1262 | |
| 1263 | /* |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1264 | * printk helpers |
| 1265 | */ |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1266 | __printf(3, 4) |
Joe Perches | a9a79df | 2011-04-15 15:51:59 -0700 | [diff] [blame] | 1267 | int ata_port_printk(const struct ata_port *ap, const char *level, |
| 1268 | const char *fmt, ...); |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1269 | __printf(3, 4) |
Joe Perches | a9a79df | 2011-04-15 15:51:59 -0700 | [diff] [blame] | 1270 | int ata_link_printk(const struct ata_link *link, const char *level, |
| 1271 | const char *fmt, ...); |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1272 | __printf(3, 4) |
Joe Perches | a9a79df | 2011-04-15 15:51:59 -0700 | [diff] [blame] | 1273 | int ata_dev_printk(const struct ata_device *dev, const char *level, |
| 1274 | const char *fmt, ...); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | |
Joe Perches | a9a79df | 2011-04-15 15:51:59 -0700 | [diff] [blame] | 1276 | #define ata_port_err(ap, fmt, ...) \ |
| 1277 | ata_port_printk(ap, KERN_ERR, fmt, ##__VA_ARGS__) |
| 1278 | #define ata_port_warn(ap, fmt, ...) \ |
| 1279 | ata_port_printk(ap, KERN_WARNING, fmt, ##__VA_ARGS__) |
| 1280 | #define ata_port_notice(ap, fmt, ...) \ |
| 1281 | ata_port_printk(ap, KERN_NOTICE, fmt, ##__VA_ARGS__) |
| 1282 | #define ata_port_info(ap, fmt, ...) \ |
| 1283 | ata_port_printk(ap, KERN_INFO, fmt, ##__VA_ARGS__) |
| 1284 | #define ata_port_dbg(ap, fmt, ...) \ |
| 1285 | ata_port_printk(ap, KERN_DEBUG, fmt, ##__VA_ARGS__) |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 1286 | |
Joe Perches | a9a79df | 2011-04-15 15:51:59 -0700 | [diff] [blame] | 1287 | #define ata_link_err(link, fmt, ...) \ |
| 1288 | ata_link_printk(link, KERN_ERR, fmt, ##__VA_ARGS__) |
| 1289 | #define ata_link_warn(link, fmt, ...) \ |
| 1290 | ata_link_printk(link, KERN_WARNING, fmt, ##__VA_ARGS__) |
| 1291 | #define ata_link_notice(link, fmt, ...) \ |
| 1292 | ata_link_printk(link, KERN_NOTICE, fmt, ##__VA_ARGS__) |
| 1293 | #define ata_link_info(link, fmt, ...) \ |
| 1294 | ata_link_printk(link, KERN_INFO, fmt, ##__VA_ARGS__) |
| 1295 | #define ata_link_dbg(link, fmt, ...) \ |
| 1296 | ata_link_printk(link, KERN_DEBUG, fmt, ##__VA_ARGS__) |
| 1297 | |
| 1298 | #define ata_dev_err(dev, fmt, ...) \ |
| 1299 | ata_dev_printk(dev, KERN_ERR, fmt, ##__VA_ARGS__) |
| 1300 | #define ata_dev_warn(dev, fmt, ...) \ |
| 1301 | ata_dev_printk(dev, KERN_WARNING, fmt, ##__VA_ARGS__) |
| 1302 | #define ata_dev_notice(dev, fmt, ...) \ |
| 1303 | ata_dev_printk(dev, KERN_NOTICE, fmt, ##__VA_ARGS__) |
| 1304 | #define ata_dev_info(dev, fmt, ...) \ |
| 1305 | ata_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__) |
| 1306 | #define ata_dev_dbg(dev, fmt, ...) \ |
| 1307 | ata_dev_printk(dev, KERN_DEBUG, fmt, ##__VA_ARGS__) |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1308 | |
Joe Perches | 06296a1 | 2011-04-15 15:52:00 -0700 | [diff] [blame] | 1309 | void ata_print_version(const struct device *dev, const char *version); |
| 1310 | |
Tejun Heo | 61440db | 2006-05-15 20:57:55 +0900 | [diff] [blame] | 1311 | /* |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1312 | * ata_eh_info helpers |
| 1313 | */ |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1314 | extern __printf(2, 3) |
| 1315 | void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); |
| 1316 | extern __printf(2, 3) |
| 1317 | void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); |
Tejun Heo | b64bbc3 | 2007-07-16 14:29:39 +0900 | [diff] [blame] | 1318 | extern void ata_ehi_clear_desc(struct ata_eh_info *ehi); |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1319 | |
Tejun Heo | c0b6c03 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1320 | static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi) |
| 1321 | { |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 1322 | ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1; |
Tejun Heo | f8f1e1c | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 1323 | ehi->flags |= ATA_EHI_HOTPLUGGED; |
Tejun Heo | b558edd | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 1324 | ehi->action |= ATA_EH_RESET | ATA_EH_ENABLE_LINK; |
Tejun Heo | c0b6c03 | 2006-07-03 16:07:26 +0900 | [diff] [blame] | 1325 | ehi->err_mask |= AC_ERR_ATA_BUS; |
| 1326 | } |
| 1327 | |
Tejun Heo | f3e81b1 | 2006-05-15 20:58:21 +0900 | [diff] [blame] | 1328 | /* |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1329 | * port description helpers |
| 1330 | */ |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 1331 | extern __printf(2, 3) |
| 1332 | void ata_port_desc(struct ata_port *ap, const char *fmt, ...); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1333 | #ifdef CONFIG_PCI |
| 1334 | extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, |
| 1335 | const char *name); |
| 1336 | #endif |
| 1337 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | static inline unsigned int ata_tag_valid(unsigned int tag) |
| 1339 | { |
| 1340 | return (tag < ATA_MAX_QUEUE) ? 1 : 0; |
| 1341 | } |
| 1342 | |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 1343 | static inline unsigned int ata_tag_internal(unsigned int tag) |
| 1344 | { |
Yoichi Yuasa | 83c063d | 2008-02-28 21:43:13 +0900 | [diff] [blame] | 1345 | return tag == ATA_TAG_INTERNAL; |
Tejun Heo | 2ab7db1 | 2006-05-15 20:58:02 +0900 | [diff] [blame] | 1346 | } |
| 1347 | |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1348 | /* |
| 1349 | * device helpers |
| 1350 | */ |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1351 | static inline unsigned int ata_class_enabled(unsigned int class) |
Tejun Heo | 597afd2 | 2006-03-01 01:25:38 +0900 | [diff] [blame] | 1352 | { |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1353 | return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI || |
| 1354 | class == ATA_DEV_PMP || class == ATA_DEV_SEMB; |
Tejun Heo | 597afd2 | 2006-03-01 01:25:38 +0900 | [diff] [blame] | 1355 | } |
| 1356 | |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1357 | static inline unsigned int ata_class_disabled(unsigned int class) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1358 | { |
Tejun Heo | e0a7175 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1359 | return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP || |
| 1360 | class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP; |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1361 | } |
| 1362 | |
Tejun Heo | 002c805 | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 1363 | static inline unsigned int ata_class_absent(unsigned int class) |
| 1364 | { |
| 1365 | return !ata_class_enabled(class) && !ata_class_disabled(class); |
| 1366 | } |
| 1367 | |
Tejun Heo | e1211e3 | 2006-04-01 01:38:18 +0900 | [diff] [blame] | 1368 | static inline unsigned int ata_dev_enabled(const struct ata_device *dev) |
| 1369 | { |
| 1370 | return ata_class_enabled(dev->class); |
| 1371 | } |
| 1372 | |
| 1373 | static inline unsigned int ata_dev_disabled(const struct ata_device *dev) |
| 1374 | { |
| 1375 | return ata_class_disabled(dev->class); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | } |
| 1377 | |
Tejun Heo | 002c805 | 2006-04-02 17:54:46 +0900 | [diff] [blame] | 1378 | static inline unsigned int ata_dev_absent(const struct ata_device *dev) |
| 1379 | { |
| 1380 | return ata_class_absent(dev->class); |
| 1381 | } |
| 1382 | |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1383 | /* |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1384 | * link helpers |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1385 | */ |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1386 | static inline int ata_link_max_devices(const struct ata_link *link) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1387 | { |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1388 | if (ata_is_host_link(link) && link->ap->flags & ATA_FLAG_SLAVE_POSS) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1389 | return 2; |
| 1390 | return 1; |
| 1391 | } |
| 1392 | |
Tejun Heo | da917d6 | 2007-09-23 13:14:12 +0900 | [diff] [blame] | 1393 | static inline int ata_link_active(struct ata_link *link) |
| 1394 | { |
| 1395 | return ata_tag_valid(link->active_tag) || link->sactive; |
| 1396 | } |
| 1397 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1398 | /* |
| 1399 | * Iterators |
| 1400 | * |
| 1401 | * ATA_LITER_* constants are used to select link iteration mode and |
| 1402 | * ATA_DITER_* device iteration mode. |
| 1403 | * |
| 1404 | * For a custom iteration directly using ata_{link|dev}_next(), if |
| 1405 | * @link or @dev, respectively, is NULL, the first element is |
| 1406 | * returned. @dev and @link can be any valid device or link and the |
| 1407 | * next element according to the iteration mode will be returned. |
| 1408 | * After the last element, NULL is returned. |
| 1409 | */ |
| 1410 | enum ata_link_iter_mode { |
| 1411 | ATA_LITER_EDGE, /* if present, PMP links only; otherwise, |
| 1412 | * host link. no slave link */ |
| 1413 | ATA_LITER_HOST_FIRST, /* host link followed by PMP or slave links */ |
| 1414 | ATA_LITER_PMP_FIRST, /* PMP links followed by host link, |
| 1415 | * slave link still comes after host link */ |
| 1416 | }; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1417 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1418 | enum ata_dev_iter_mode { |
| 1419 | ATA_DITER_ENABLED, |
| 1420 | ATA_DITER_ENABLED_REVERSE, |
| 1421 | ATA_DITER_ALL, |
| 1422 | ATA_DITER_ALL_REVERSE, |
| 1423 | }; |
Tejun Heo | 8989805 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1424 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1425 | extern struct ata_link *ata_link_next(struct ata_link *link, |
| 1426 | struct ata_port *ap, |
| 1427 | enum ata_link_iter_mode mode); |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1428 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1429 | extern struct ata_device *ata_dev_next(struct ata_device *dev, |
| 1430 | struct ata_link *link, |
| 1431 | enum ata_dev_iter_mode mode); |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 1432 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 1433 | /* |
| 1434 | * Shortcut notation for iterations |
| 1435 | * |
| 1436 | * ata_for_each_link() iterates over each link of @ap according to |
| 1437 | * @mode. @link points to the current link in the loop. @link is |
| 1438 | * NULL after loop termination. ata_for_each_dev() works the same way |
| 1439 | * except that it iterates over each device of @link. |
| 1440 | * |
| 1441 | * Note that the mode prefixes ATA_{L|D}ITER_ shouldn't need to be |
| 1442 | * specified when using the following shorthand notations. Only the |
| 1443 | * mode itself (EDGE, HOST_FIRST, ENABLED, etc...) should be |
| 1444 | * specified. This not only increases brevity but also makes it |
| 1445 | * impossible to use ATA_LITER_* for device iteration or vice-versa. |
| 1446 | */ |
| 1447 | #define ata_for_each_link(link, ap, mode) \ |
| 1448 | for ((link) = ata_link_next(NULL, (ap), ATA_LITER_##mode); (link); \ |
| 1449 | (link) = ata_link_next((link), (ap), ATA_LITER_##mode)) |
| 1450 | |
| 1451 | #define ata_for_each_dev(dev, link, mode) \ |
| 1452 | for ((dev) = ata_dev_next(NULL, (link), ATA_DITER_##mode); (dev); \ |
| 1453 | (dev) = ata_dev_next((dev), (link), ATA_DITER_##mode)) |
Tejun Heo | 5806db2 | 2006-06-24 20:30:19 +0900 | [diff] [blame] | 1454 | |
Tejun Heo | 6d1245b | 2007-02-20 23:20:27 +0900 | [diff] [blame] | 1455 | /** |
| 1456 | * ata_ncq_enabled - Test whether NCQ is enabled |
| 1457 | * @dev: ATA device to test for |
| 1458 | * |
| 1459 | * LOCKING: |
| 1460 | * spin_lock_irqsave(host lock) |
| 1461 | * |
| 1462 | * RETURNS: |
| 1463 | * 1 if NCQ is enabled for @dev, 0 otherwise. |
| 1464 | */ |
| 1465 | static inline int ata_ncq_enabled(struct ata_device *dev) |
| 1466 | { |
| 1467 | return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF | |
| 1468 | ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ; |
| 1469 | } |
Edward Falk | 0baab86 | 2005-06-02 18:17:13 -0400 | [diff] [blame] | 1470 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | static inline void ata_qc_set_polling(struct ata_queued_cmd *qc) |
| 1472 | { |
| 1473 | qc->tf.ctl |= ATA_NIEN; |
| 1474 | } |
| 1475 | |
Tejun Heo | f69499f | 2006-05-15 20:58:03 +0900 | [diff] [blame] | 1476 | static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap, |
| 1477 | unsigned int tag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | { |
| 1479 | if (likely(ata_tag_valid(tag))) |
| 1480 | return &ap->qcmd[tag]; |
| 1481 | return NULL; |
| 1482 | } |
| 1483 | |
Tejun Heo | f69499f | 2006-05-15 20:58:03 +0900 | [diff] [blame] | 1484 | static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap, |
| 1485 | unsigned int tag) |
| 1486 | { |
| 1487 | struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); |
| 1488 | |
| 1489 | if (unlikely(!qc) || !ap->ops->error_handler) |
| 1490 | return qc; |
| 1491 | |
| 1492 | if ((qc->flags & (ATA_QCFLAG_ACTIVE | |
| 1493 | ATA_QCFLAG_FAILED)) == ATA_QCFLAG_ACTIVE) |
| 1494 | return qc; |
| 1495 | |
| 1496 | return NULL; |
| 1497 | } |
| 1498 | |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 1499 | static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc) |
| 1500 | { |
| 1501 | return qc->nbytes - min(qc->extrabytes, qc->nbytes); |
| 1502 | } |
| 1503 | |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1504 | static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | { |
| 1506 | memset(tf, 0, sizeof(*tf)); |
| 1507 | |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 1508 | #ifdef CONFIG_ATA_SFF |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 1509 | tf->ctl = dev->link->ap->ctl; |
Tejun Heo | 5fe7454 | 2010-05-10 21:41:37 +0200 | [diff] [blame] | 1510 | #else |
| 1511 | tf->ctl = ATA_DEVCTL_OBS; |
| 1512 | #endif |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1513 | if (dev->devno == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | tf->device = ATA_DEVICE_OBS; |
| 1515 | else |
| 1516 | tf->device = ATA_DEVICE_OBS | ATA_DEV1; |
| 1517 | } |
| 1518 | |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1519 | static inline void ata_qc_reinit(struct ata_queued_cmd *qc) |
| 1520 | { |
Tejun Heo | 501e0c50 | 2007-01-17 11:34:02 +0900 | [diff] [blame] | 1521 | qc->dma_dir = DMA_NONE; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 1522 | qc->sg = NULL; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1523 | qc->flags = 0; |
Jens Axboe | 8726021 | 2007-10-16 11:14:12 +0200 | [diff] [blame] | 1524 | qc->cursg = NULL; |
| 1525 | qc->cursg_ofs = 0; |
Tejun Heo | aacda37 | 2008-03-18 17:47:43 +0900 | [diff] [blame] | 1526 | qc->nbytes = qc->extrabytes = qc->curbytes = 0; |
Brian King | 7a80118 | 2007-01-17 12:32:12 -0600 | [diff] [blame] | 1527 | qc->n_elem = 0; |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 1528 | qc->err_mask = 0; |
Mark Lord | 5a5dbd1 | 2007-03-16 10:22:26 -0400 | [diff] [blame] | 1529 | qc->sect_size = ATA_SECT_SIZE; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1530 | |
Tejun Heo | 3373efd | 2006-05-15 20:57:53 +0900 | [diff] [blame] | 1531 | ata_tf_init(qc->dev, &qc->tf); |
Tejun Heo | e61e067 | 2006-05-15 20:57:40 +0900 | [diff] [blame] | 1532 | |
| 1533 | /* init result_tf such that it indicates normal completion */ |
| 1534 | qc->result_tf.command = ATA_DRDY; |
| 1535 | qc->result_tf.feature = 0; |
Jeff Garzik | 2c13b7c | 2005-11-14 14:14:16 -0500 | [diff] [blame] | 1536 | } |
| 1537 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 1538 | static inline int ata_try_flush_cache(const struct ata_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | { |
| 1540 | return ata_id_wcache_enabled(dev->id) || |
| 1541 | ata_id_has_flush(dev->id) || |
| 1542 | ata_id_has_flush_ext(dev->id); |
| 1543 | } |
| 1544 | |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 1545 | static inline unsigned int ac_err_mask(u8 status) |
| 1546 | { |
Albert Lee | 3655d1d | 2006-05-19 11:43:04 +0800 | [diff] [blame] | 1547 | if (status & (ATA_BUSY | ATA_DRQ)) |
Tejun Heo | 11a56d2 | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 1548 | return AC_ERR_HSM; |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 1549 | if (status & (ATA_ERR | ATA_DF)) |
| 1550 | return AC_ERR_DEV; |
| 1551 | return 0; |
| 1552 | } |
| 1553 | |
| 1554 | static inline unsigned int __ac_err_mask(u8 status) |
| 1555 | { |
| 1556 | unsigned int mask = ac_err_mask(status); |
| 1557 | if (mask == 0) |
| 1558 | return AC_ERR_OTHER; |
| 1559 | return mask; |
| 1560 | } |
| 1561 | |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 1562 | static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host) |
| 1563 | { |
Tejun Heo | 4911487 | 2007-04-17 23:44:06 +0900 | [diff] [blame] | 1564 | return *(struct ata_port **)&host->hostdata[0]; |
Jeff Garzik | 35bb94b | 2006-04-11 13:12:34 -0400 | [diff] [blame] | 1565 | } |
| 1566 | |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1567 | static inline int ata_check_ready(u8 status) |
| 1568 | { |
Jeff Garzik | 005b1f7 | 2008-05-09 15:00:55 -0400 | [diff] [blame] | 1569 | if (!(status & ATA_BUSY)) |
| 1570 | return 1; |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1571 | |
| 1572 | /* 0xff indicates either no device or device not ready */ |
| 1573 | if (status == 0xff) |
| 1574 | return -ENODEV; |
| 1575 | |
Jeff Garzik | 005b1f7 | 2008-05-09 15:00:55 -0400 | [diff] [blame] | 1576 | return 0; |
Tejun Heo | 78ab88f | 2008-05-01 23:41:41 +0900 | [diff] [blame] | 1577 | } |
| 1578 | |
Tejun Heo | 341c2c9 | 2008-05-20 02:17:51 +0900 | [diff] [blame] | 1579 | static inline unsigned long ata_deadline(unsigned long from_jiffies, |
| 1580 | unsigned long timeout_msecs) |
| 1581 | { |
| 1582 | return from_jiffies + msecs_to_jiffies(timeout_msecs); |
| 1583 | } |
| 1584 | |
Alan Cox | b15b3eb | 2008-08-01 09:18:34 +0100 | [diff] [blame] | 1585 | /* Don't open code these in drivers as there are traps. Firstly the range may |
| 1586 | change in future hardware and specs, secondly 0xFF means 'no DMA' but is |
| 1587 | > UDMA_0. Dyma ddreigiau */ |
| 1588 | |
| 1589 | static inline int ata_using_mwdma(struct ata_device *adev) |
| 1590 | { |
| 1591 | if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4) |
| 1592 | return 1; |
| 1593 | return 0; |
| 1594 | } |
| 1595 | |
| 1596 | static inline int ata_using_udma(struct ata_device *adev) |
| 1597 | { |
| 1598 | if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7) |
| 1599 | return 1; |
| 1600 | return 0; |
| 1601 | } |
| 1602 | |
| 1603 | static inline int ata_dma_enabled(struct ata_device *adev) |
| 1604 | { |
| 1605 | return (adev->dma_mode == 0xFF ? 0 : 1); |
| 1606 | } |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1607 | |
| 1608 | /************************************************************************** |
| 1609 | * PMP - drivers/ata/libata-pmp.c |
| 1610 | */ |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1611 | #ifdef CONFIG_SATA_PMP |
| 1612 | |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1613 | extern const struct ata_port_operations sata_pmp_port_ops; |
| 1614 | |
| 1615 | extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc); |
| 1616 | extern void sata_pmp_error_handler(struct ata_port *ap); |
| 1617 | |
Tejun Heo | 88fcd56 | 2008-04-07 22:47:22 +0900 | [diff] [blame] | 1618 | #else /* CONFIG_SATA_PMP */ |
| 1619 | |
| 1620 | #define sata_pmp_port_ops sata_port_ops |
| 1621 | #define sata_pmp_qc_defer_cmd_switch ata_std_qc_defer |
| 1622 | #define sata_pmp_error_handler ata_std_error_handler |
| 1623 | |
| 1624 | #endif /* CONFIG_SATA_PMP */ |
| 1625 | |
Tejun Heo | 48515f6 | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1626 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1627 | /************************************************************************** |
| 1628 | * SFF - drivers/ata/libata-sff.c |
| 1629 | */ |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1630 | #ifdef CONFIG_ATA_SFF |
| 1631 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1632 | extern const struct ata_port_operations ata_sff_port_ops; |
Alan Cox | 871af12 | 2009-01-05 14:16:39 +0000 | [diff] [blame] | 1633 | extern const struct ata_port_operations ata_bmdma32_port_ops; |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1634 | |
| 1635 | /* PIO only, sg_tablesize and dma_boundary limits can be removed */ |
| 1636 | #define ATA_PIO_SHT(drv_name) \ |
| 1637 | ATA_BASE_SHT(drv_name), \ |
| 1638 | .sg_tablesize = LIBATA_MAX_PRD, \ |
| 1639 | .dma_boundary = ATA_DMA_BOUNDARY |
| 1640 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1641 | extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device); |
| 1642 | extern u8 ata_sff_check_status(struct ata_port *ap); |
Alan Cox | a57c1ba | 2008-05-29 22:10:58 +0100 | [diff] [blame] | 1643 | extern void ata_sff_pause(struct ata_port *ap); |
| 1644 | extern void ata_sff_dma_pause(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1645 | extern int ata_sff_busy_sleep(struct ata_port *ap, |
| 1646 | unsigned long timeout_pat, unsigned long timeout); |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1647 | extern int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1648 | extern void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); |
| 1649 | extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf); |
| 1650 | extern void ata_sff_exec_command(struct ata_port *ap, |
| 1651 | const struct ata_taskfile *tf); |
| 1652 | extern unsigned int ata_sff_data_xfer(struct ata_device *dev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1653 | unsigned char *buf, unsigned int buflen, int rw); |
Alan Cox | 871af12 | 2009-01-05 14:16:39 +0000 | [diff] [blame] | 1654 | extern unsigned int ata_sff_data_xfer32(struct ata_device *dev, |
| 1655 | unsigned char *buf, unsigned int buflen, int rw); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1656 | extern unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1657 | unsigned char *buf, unsigned int buflen, int rw); |
Sergei Shtylyov | e42a542 | 2010-05-07 22:49:02 +0400 | [diff] [blame] | 1658 | extern void ata_sff_irq_on(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1659 | extern void ata_sff_irq_clear(struct ata_port *ap); |
| 1660 | extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, |
| 1661 | u8 status, int in_wq); |
Viresh Kumar | 64b9759 | 2011-02-22 14:32:38 +0530 | [diff] [blame] | 1662 | extern void ata_sff_queue_work(struct work_struct *work); |
| 1663 | extern void ata_sff_queue_delayed_work(struct delayed_work *dwork, |
| 1664 | unsigned long delay); |
Gwendal Grignou | ea3c645 | 2010-08-31 16:20:36 -0700 | [diff] [blame] | 1665 | extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1666 | extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); |
Tejun Heo | 22183bf | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 1667 | extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); |
Tejun Heo | c3b2889 | 2010-05-19 22:10:21 +0200 | [diff] [blame] | 1668 | extern unsigned int ata_sff_port_intr(struct ata_port *ap, |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1669 | struct ata_queued_cmd *qc); |
| 1670 | extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance); |
Alan Cox | c96f173 | 2009-03-24 10:23:46 +0000 | [diff] [blame] | 1671 | extern void ata_sff_lost_interrupt(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1672 | extern void ata_sff_freeze(struct ata_port *ap); |
| 1673 | extern void ata_sff_thaw(struct ata_port *ap); |
| 1674 | extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline); |
| 1675 | extern unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, |
| 1676 | u8 *r_err); |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 1677 | extern int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, |
| 1678 | unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1679 | extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1680 | unsigned long deadline); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1681 | extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class, |
| 1682 | unsigned long deadline); |
| 1683 | extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes); |
Alan Cox | 3d47aa8 | 2009-03-24 10:23:19 +0000 | [diff] [blame] | 1684 | extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1685 | extern void ata_sff_error_handler(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1686 | extern void ata_sff_std_ports(struct ata_ioports *ioaddr); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1687 | #ifdef CONFIG_PCI |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1688 | extern int ata_pci_sff_init_host(struct ata_host *host); |
| 1689 | extern int ata_pci_sff_prepare_host(struct pci_dev *pdev, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1690 | const struct ata_port_info * const * ppi, |
| 1691 | struct ata_host **r_host); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1692 | extern int ata_pci_sff_activate_host(struct ata_host *host, |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1693 | irq_handler_t irq_handler, |
| 1694 | struct scsi_host_template *sht); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1695 | extern int ata_pci_sff_init_one(struct pci_dev *pdev, |
Alan Cox | 16ea0fc | 2010-02-23 02:26:06 -0500 | [diff] [blame] | 1696 | const struct ata_port_info * const * ppi, |
| 1697 | struct scsi_host_template *sht, void *host_priv, int hflags); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1698 | #endif /* CONFIG_PCI */ |
| 1699 | |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 1700 | #ifdef CONFIG_ATA_BMDMA |
| 1701 | |
| 1702 | extern const struct ata_port_operations ata_bmdma_port_ops; |
| 1703 | |
| 1704 | #define ATA_BMDMA_SHT(drv_name) \ |
| 1705 | ATA_BASE_SHT(drv_name), \ |
| 1706 | .sg_tablesize = LIBATA_MAX_PRD, \ |
| 1707 | .dma_boundary = ATA_DMA_BOUNDARY |
| 1708 | |
Tejun Heo | f47451c | 2010-05-10 21:41:40 +0200 | [diff] [blame] | 1709 | extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc); |
Tejun Heo | 360ff78 | 2010-05-10 21:41:42 +0200 | [diff] [blame] | 1710 | extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc); |
Tejun Heo | f47451c | 2010-05-10 21:41:40 +0200 | [diff] [blame] | 1711 | extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); |
Tejun Heo | c3b2889 | 2010-05-19 22:10:21 +0200 | [diff] [blame] | 1712 | extern unsigned int ata_bmdma_port_intr(struct ata_port *ap, |
| 1713 | struct ata_queued_cmd *qc); |
| 1714 | extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance); |
Tejun Heo | fe06e5f | 2010-05-10 21:41:39 +0200 | [diff] [blame] | 1715 | extern void ata_bmdma_error_handler(struct ata_port *ap); |
| 1716 | extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); |
Tejun Heo | 37f65b8 | 2010-05-19 22:10:20 +0200 | [diff] [blame] | 1717 | extern void ata_bmdma_irq_clear(struct ata_port *ap); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1718 | extern void ata_bmdma_setup(struct ata_queued_cmd *qc); |
| 1719 | extern void ata_bmdma_start(struct ata_queued_cmd *qc); |
| 1720 | extern void ata_bmdma_stop(struct ata_queued_cmd *qc); |
| 1721 | extern u8 ata_bmdma_status(struct ata_port *ap); |
Tejun Heo | c708765 | 2010-05-10 21:41:34 +0200 | [diff] [blame] | 1722 | extern int ata_bmdma_port_start(struct ata_port *ap); |
| 1723 | extern int ata_bmdma_port_start32(struct ata_port *ap); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1724 | |
| 1725 | #ifdef CONFIG_PCI |
| 1726 | extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev); |
Tejun Heo | c708765 | 2010-05-10 21:41:34 +0200 | [diff] [blame] | 1727 | extern void ata_pci_bmdma_init(struct ata_host *host); |
Tejun Heo | 1c5afdf | 2010-05-19 22:10:22 +0200 | [diff] [blame] | 1728 | extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev, |
| 1729 | const struct ata_port_info * const * ppi, |
| 1730 | struct ata_host **r_host); |
| 1731 | extern int ata_pci_bmdma_init_one(struct pci_dev *pdev, |
| 1732 | const struct ata_port_info * const * ppi, |
| 1733 | struct scsi_host_template *sht, |
| 1734 | void *host_priv, int hflags); |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1735 | #endif /* CONFIG_PCI */ |
Tejun Heo | 9a7780c | 2010-05-19 22:10:24 +0200 | [diff] [blame] | 1736 | #endif /* CONFIG_ATA_BMDMA */ |
Tejun Heo | 9f2f721 | 2010-05-10 21:41:32 +0200 | [diff] [blame] | 1737 | |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1738 | /** |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1739 | * ata_sff_busy_wait - Wait for a port status register |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1740 | * @ap: Port to wait for. |
| 1741 | * @bits: bits that must be clear |
| 1742 | * @max: number of 10uS waits to perform |
| 1743 | * |
| 1744 | * Waits up to max*10 microseconds for the selected bits in the port's |
| 1745 | * status register to be cleared. |
| 1746 | * Returns final value of status register. |
| 1747 | * |
| 1748 | * LOCKING: |
| 1749 | * Inherited from caller. |
| 1750 | */ |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1751 | static inline u8 ata_sff_busy_wait(struct ata_port *ap, unsigned int bits, |
| 1752 | unsigned int max) |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1753 | { |
| 1754 | u8 status; |
| 1755 | |
| 1756 | do { |
| 1757 | udelay(10); |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1758 | status = ap->ops->sff_check_status(ap); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1759 | max--; |
| 1760 | } while (status != 0xff && (status & bits) && (max > 0)); |
| 1761 | |
| 1762 | return status; |
| 1763 | } |
| 1764 | |
| 1765 | /** |
| 1766 | * ata_wait_idle - Wait for a port to be idle. |
| 1767 | * @ap: Port to wait for. |
| 1768 | * |
| 1769 | * Waits up to 10ms for port's BUSY and DRQ signals to clear. |
| 1770 | * Returns final value of status register. |
| 1771 | * |
| 1772 | * LOCKING: |
| 1773 | * Inherited from caller. |
| 1774 | */ |
| 1775 | static inline u8 ata_wait_idle(struct ata_port *ap) |
| 1776 | { |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 1777 | u8 status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1778 | |
| 1779 | #ifdef ATA_DEBUG |
| 1780 | if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) |
| 1781 | ata_port_printk(ap, KERN_DEBUG, "abnormal Status 0x%X\n", |
| 1782 | status); |
| 1783 | #endif |
| 1784 | |
| 1785 | return status; |
| 1786 | } |
Tejun Heo | 127102a | 2008-04-07 22:47:21 +0900 | [diff] [blame] | 1787 | #endif /* CONFIG_ATA_SFF */ |
Tejun Heo | 624d5c5 | 2008-03-25 22:16:41 +0900 | [diff] [blame] | 1788 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1789 | #endif /* __LINUX_LIBATA_H__ */ |