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1da177e4 | 1 | /* |
af36d7f0 JG |
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 | * | |
1da177e4 LT |
24 | */ |
25 | ||
26 | #ifndef __LINUX_LIBATA_H__ | |
27 | #define __LINUX_LIBATA_H__ | |
28 | ||
29 | #include <linux/delay.h> | |
341c2c95 | 30 | #include <linux/jiffies.h> |
1da177e4 | 31 | #include <linux/interrupt.h> |
1c72d8d9 | 32 | #include <linux/dma-mapping.h> |
87260216 | 33 | #include <linux/scatterlist.h> |
f0d36efd | 34 | #include <linux/io.h> |
1da177e4 LT |
35 | #include <linux/ata.h> |
36 | #include <linux/workqueue.h> | |
35bb94b1 | 37 | #include <scsi/scsi_host.h> |
11ef697b | 38 | #include <linux/acpi.h> |
ceb0c642 | 39 | #include <linux/cdrom.h> |
c0c362b6 | 40 | #include <linux/sched.h> |
1da177e4 | 41 | |
a6d967a4 JG |
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 | |
2ec7df04 | 47 | #include <asm/libata-portmap.h> |
a6d967a4 JG |
48 | #else |
49 | #include <asm-generic/libata-portmap.h> | |
50 | #endif | |
2ec7df04 | 51 | |
1da177e4 | 52 | /* |
bfd60579 RD |
53 | * compile-time options: to be removed as soon as all the drivers are |
54 | * converted to the new debugging mechanism | |
1da177e4 LT |
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 */ | |
1da177e4 LT |
60 | |
61 | ||
62 | /* note: prints function name for you */ | |
63 | #ifdef ATA_DEBUG | |
1f938d06 | 64 | #define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
1da177e4 | 65 | #ifdef ATA_VERBOSE_DEBUG |
1f938d06 | 66 | #define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
1da177e4 LT |
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 | ||
1f938d06 | 75 | #define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __func__, ## args) |
2c13b7ce | 76 | |
06296a1e JP |
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 | ||
bfd60579 RD |
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 | ||
1da177e4 LT |
119 | /* defines only for the constants which don't work well as enums */ |
120 | #define ATA_TAG_POISON 0xfafbfcfdU | |
121 | ||
1da177e4 LT |
122 | enum { |
123 | /* various global constants */ | |
124 | LIBATA_MAX_PRD = ATA_MAX_PRD / 2, | |
d26fc955 | 125 | LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ |
1da177e4 | 126 | ATA_DEF_QUEUE = 1, |
2ab7db1f | 127 | /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */ |
a6e6ce8e | 128 | ATA_MAX_QUEUE = 32, |
2ab7db1f | 129 | ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1, |
341c2c95 | 130 | ATA_SHORT_PAUSE = 16, |
1da177e4 | 131 | |
140b5e59 TH |
132 | ATAPI_MAX_DRAIN = 16 << 10, |
133 | ||
b558eddd TH |
134 | ATA_ALL_DEVICES = (1 << ATA_MAX_DEVICES) - 1, |
135 | ||
1da177e4 LT |
136 | ATA_SHT_EMULATED = 1, |
137 | ATA_SHT_CMD_PER_LUN = 1, | |
138 | ATA_SHT_THIS_ID = -1, | |
cf482935 | 139 | ATA_SHT_USE_CLUSTERING = 1, |
1da177e4 LT |
140 | |
141 | /* struct ata_device stuff */ | |
949b38af TH |
142 | ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */ |
143 | ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */ | |
029f5468 | 144 | ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */ |
88e49034 | 145 | ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */ |
6fc49adb | 146 | ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ |
6746544c TH |
147 | ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ |
148 | ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ | |
7d77b247 | 149 | ATA_DFLAG_AN = (1 << 7), /* AN configured */ |
91163006 | 150 | ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */ |
2557164e | 151 | ATA_DFLAG_CFG_MASK = (1 << 12) - 1, |
949b38af | 152 | |
2557164e KCA |
153 | ATA_DFLAG_PIO = (1 << 12), /* device limited to PIO mode */ |
154 | ATA_DFLAG_NCQ_OFF = (1 << 13), /* device limited to non-NCQ mode */ | |
054a5fba | 155 | ATA_DFLAG_SLEEPING = (1 << 15), /* device is sleeping */ |
00115e0f | 156 | ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */ |
45fabbb7 | 157 | ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */ |
445d211b | 158 | ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */ |
f20ded38 | 159 | ATA_DFLAG_INIT_MASK = (1 << 24) - 1, |
1da177e4 | 160 | |
f20ded38 TH |
161 | ATA_DFLAG_DETACH = (1 << 24), |
162 | ATA_DFLAG_DETACHED = (1 << 25), | |
abdda733 | 163 | |
b1354cbb | 164 | ATA_DFLAG_DA = (1 << 26), /* device supports Device Attention */ |
65fe1f0f | 165 | ATA_DFLAG_DEVSLP = (1 << 27), /* device supports Device Sleep */ |
0d0cdb02 | 166 | ATA_DFLAG_ACPI_DISABLED = (1 << 28), /* ACPI for the device is disabled */ |
b1354cbb | 167 | |
1da177e4 LT |
168 | ATA_DEV_UNKNOWN = 0, /* unknown device */ |
169 | ATA_DEV_ATA = 1, /* ATA device */ | |
170 | ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */ | |
171 | ATA_DEV_ATAPI = 3, /* ATAPI device */ | |
172 | ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */ | |
e0a71752 TH |
173 | ATA_DEV_PMP = 5, /* SATA port multiplier */ |
174 | ATA_DEV_PMP_UNSUP = 6, /* SATA port multiplier (unsupported) */ | |
175 | ATA_DEV_SEMB = 7, /* SEMB */ | |
176 | ATA_DEV_SEMB_UNSUP = 8, /* SEMB (unsupported) */ | |
177 | ATA_DEV_NONE = 9, /* no device */ | |
1da177e4 | 178 | |
0c88758b | 179 | /* struct ata_link flags */ |
05944bdf | 180 | ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */ |
ae791c05 TH |
181 | ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */ |
182 | ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ | |
183 | ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ | |
184 | ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB, | |
fd995f70 | 185 | ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ |
f9df58cb | 186 | ATA_LFLAG_DISABLED = (1 << 6), /* link is disabled */ |
18f7ba4c | 187 | ATA_LFLAG_SW_ACTIVITY = (1 << 7), /* keep activity stats */ |
6b7ae954 | 188 | ATA_LFLAG_NO_LPM = (1 << 8), /* disable LPM on this link */ |
ca6d43b0 | 189 | ATA_LFLAG_RST_ONCE = (1 << 9), /* limit recovery to one reset */ |
0c88758b | 190 | |
1da177e4 | 191 | /* struct ata_port flags */ |
949b38af | 192 | ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ |
1da177e4 | 193 | /* (doesn't imply presence) */ |
949b38af | 194 | ATA_FLAG_SATA = (1 << 1), |
949b38af TH |
195 | ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */ |
196 | ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */ | |
197 | ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */ | |
7395acb2 TH |
198 | ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD |
199 | * doesn't handle PIO interrupts */ | |
200 | ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */ | |
2a6e58d2 RW |
201 | ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */ |
202 | ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */ | |
7395acb2 | 203 | ATA_FLAG_DEBUGMSG = (1 << 13), |
388539f3 | 204 | ATA_FLAG_FPDMA_AA = (1 << 14), /* driver supports Auto-Activate */ |
b2a8bbe6 | 205 | ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */ |
f834e49f | 206 | ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ |
3cadbcc0 | 207 | ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ |
9f45cbd3 | 208 | ATA_FLAG_AN = (1 << 18), /* controller supports AN */ |
e0a71752 | 209 | ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ |
18f7ba4c KCA |
210 | ATA_FLAG_EM = (1 << 21), /* driver supports enclosure |
211 | * management */ | |
212 | ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity | |
213 | * led */ | |
ae01b249 | 214 | ATA_FLAG_NO_DIPM = (1 << 23), /* host not happy with DIPM */ |
949b38af | 215 | |
b51e9e5d | 216 | /* bits 24:31 of ap->flags are reserved for LLD specific flags */ |
9ec957f2 | 217 | |
e3cf95dd | 218 | |
b51e9e5d TH |
219 | /* struct ata_port pflags */ |
220 | ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */ | |
221 | ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */ | |
222 | ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */ | |
223 | ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */ | |
224 | ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */ | |
b51e9e5d | 225 | ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */ |
f4d6d004 | 226 | ATA_PFLAG_INITIALIZING = (1 << 7), /* being initialized, don't touch */ |
afaa5c37 | 227 | ATA_PFLAG_RESETTING = (1 << 8), /* reset in progress */ |
ece180d1 TH |
228 | ATA_PFLAG_UNLOADING = (1 << 9), /* driver is being unloaded */ |
229 | ATA_PFLAG_UNLOADED = (1 << 10), /* driver is unloaded */ | |
949b38af | 230 | |
b51e9e5d | 231 | ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */ |
500530f6 | 232 | ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ |
c05e6ff0 | 233 | ATA_PFLAG_INIT_GTM_VALID = (1 << 19), /* initial gtm data valid */ |
949b38af | 234 | |
e3cf95dd AC |
235 | ATA_PFLAG_PIO32 = (1 << 20), /* 32bit PIO */ |
236 | ATA_PFLAG_PIO32CHANGE = (1 << 21), /* 32bit PIO can be turned on/off */ | |
237 | ||
949b38af TH |
238 | /* struct ata_queued_cmd flags */ |
239 | ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */ | |
001102d7 | 240 | ATA_QCFLAG_DMAMAP = (1 << 1), /* SG table is DMA mapped */ |
27197367 | 241 | ATA_QCFLAG_IO = (1 << 3), /* standard IO command */ |
e61e0672 | 242 | ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */ |
da917d69 | 243 | ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */ |
e027bd36 | 244 | ATA_QCFLAG_QUIET = (1 << 6), /* don't report device error */ |
03faab78 | 245 | ATA_QCFLAG_RETRY = (1 << 7), /* retry after failure */ |
e61e0672 | 246 | |
9ec957f2 TH |
247 | ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */ |
248 | ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */ | |
249 | ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */ | |
1da177e4 | 250 | |
4e5ec5db | 251 | /* host set flags */ |
cca3974e | 252 | ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */ |
ecef7253 | 253 | ATA_HOST_STARTED = (1 << 1), /* Host started */ |
886ad09f | 254 | ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */ |
db63a4c8 | 255 | ATA_HOST_IGNORE_ATA = (1 << 3), /* Ignore ATA devices on this host. */ |
9bec2e38 | 256 | |
b8b275ef TH |
257 | /* bits 24:31 of host->flags are reserved for LLD specific flags */ |
258 | ||
1da177e4 | 259 | /* various lengths of time */ |
341c2c95 TH |
260 | ATA_TMOUT_BOOT = 30000, /* heuristic */ |
261 | ATA_TMOUT_BOOT_QUICK = 7000, /* heuristic */ | |
341c2c95 | 262 | ATA_TMOUT_INTERNAL_QUICK = 5000, |
45fabbb7 | 263 | ATA_TMOUT_MAX_PARK = 30000, |
1da177e4 | 264 | |
b48d58f5 TH |
265 | /* |
266 | * GoVault needs 2s and iVDR disk HHD424020F7SV00 800ms. 2s | |
267 | * is too much without parallel probing. Use 2s if parallel | |
268 | * probing is available, 800ms otherwise. | |
88ff6eaf | 269 | */ |
b48d58f5 TH |
270 | ATA_TMOUT_FF_WAIT_LONG = 2000, |
271 | ATA_TMOUT_FF_WAIT = 800, | |
88ff6eaf | 272 | |
705e76be TH |
273 | /* Spec mandates to wait for ">= 2ms" before checking status |
274 | * after reset. We wait 150ms, because that was the magic | |
275 | * delay used for ATAPI devices in Hale Landis's ATADRVR, for | |
276 | * the period of time between when the ATA command register is | |
277 | * written, and then status is checked. Because waiting for | |
278 | * "a while" before checking status is fine, post SRST, we | |
279 | * perform this magic delay here as well. | |
280 | * | |
281 | * Old drivers/ide uses the 2mS rule and then waits for ready. | |
282 | */ | |
341c2c95 | 283 | ATA_WAIT_AFTER_RESET = 150, |
705e76be | 284 | |
9dadd45b TH |
285 | /* If PMP is supported, we have to do follow-up SRST. As some |
286 | * PMPs don't send D2H Reg FIS after hardreset, LLDs are | |
287 | * advised to wait only for the following duration before | |
288 | * doing SRST. | |
289 | */ | |
e7d3ef13 | 290 | ATA_TMOUT_PMP_SRST_WAIT = 5000, |
9dadd45b | 291 | |
1da177e4 LT |
292 | /* ATA bus states */ |
293 | BUS_UNKNOWN = 0, | |
294 | BUS_DMA = 1, | |
295 | BUS_IDLE = 2, | |
296 | BUS_NOINTR = 3, | |
297 | BUS_NODATA = 4, | |
298 | BUS_TIMER = 5, | |
299 | BUS_PIO = 6, | |
300 | BUS_EDD = 7, | |
301 | BUS_IDENTIFY = 8, | |
302 | BUS_PACKET = 9, | |
303 | ||
304 | /* SATA port states */ | |
305 | PORT_UNKNOWN = 0, | |
306 | PORT_ENABLED = 1, | |
307 | PORT_DISABLED = 2, | |
308 | ||
309 | /* encoding various smaller bitmaps into a single | |
7dc951ae | 310 | * unsigned long bitmap |
1da177e4 | 311 | */ |
70cd071e TH |
312 | ATA_NR_PIO_MODES = 7, |
313 | ATA_NR_MWDMA_MODES = 5, | |
314 | ATA_NR_UDMA_MODES = 8, | |
1da7b0d0 TH |
315 | |
316 | ATA_SHIFT_PIO = 0, | |
70cd071e TH |
317 | ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES, |
318 | ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES, | |
319 | ||
cedc9a47 JG |
320 | /* size of buffer to pad xfers ending on unaligned boundaries */ |
321 | ATA_DMA_PAD_SZ = 4, | |
949b38af | 322 | |
0c247c55 TH |
323 | /* ering size */ |
324 | ATA_ERING_SIZE = 32, | |
325 | ||
31cc23b3 TH |
326 | /* return values for ->qc_defer */ |
327 | ATA_DEFER_LINK = 1, | |
328 | ATA_DEFER_PORT = 2, | |
329 | ||
f3e81b19 TH |
330 | /* desc_len for ata_eh_info and context */ |
331 | ATA_EH_DESC_LEN = 80, | |
332 | ||
9be1e979 TH |
333 | /* reset / recovery action types */ |
334 | ATA_EH_REVALIDATE = (1 << 0), | |
cf480626 TH |
335 | ATA_EH_SOFTRESET = (1 << 1), /* meaningful only in ->prereset */ |
336 | ATA_EH_HARDRESET = (1 << 2), /* meaningful only in ->prereset */ | |
337 | ATA_EH_RESET = ATA_EH_SOFTRESET | ATA_EH_HARDRESET, | |
f9df58cb | 338 | ATA_EH_ENABLE_LINK = (1 << 3), |
45fabbb7 | 339 | ATA_EH_PARK = (1 << 5), /* unload heads and stop I/O */ |
9be1e979 | 340 | |
45fabbb7 | 341 | ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_PARK, |
b5b3fa38 | 342 | ATA_EH_ALL_ACTIONS = ATA_EH_REVALIDATE | ATA_EH_RESET | |
6b7ae954 | 343 | ATA_EH_ENABLE_LINK, |
9be1e979 | 344 | |
f3e81b19 | 345 | /* ata_eh_info->flags */ |
abdda733 | 346 | ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ |
1cdaf534 TH |
347 | ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ |
348 | ATA_EHI_QUIET = (1 << 3), /* be quiet */ | |
e2f3d75f | 349 | ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */ |
abdda733 | 350 | |
0d64a233 TH |
351 | ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */ |
352 | ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */ | |
353 | ATA_EHI_PRINTINFO = (1 << 18), /* print configuration info */ | |
354 | ATA_EHI_SETMODE = (1 << 19), /* configure transfer mode */ | |
89692c03 | 355 | ATA_EHI_POST_SETMODE = (1 << 20), /* revalidating after setmode */ |
f3e81b19 | 356 | |
0d64a233 | 357 | ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET, |
13abf50d | 358 | |
848e4c68 TH |
359 | /* mask of flags to transfer *to* the slave link */ |
360 | ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, | |
361 | ||
a1e10f7e TH |
362 | /* max tries if error condition is still set after ->error_handler */ |
363 | ATA_EH_MAX_TRIES = 5, | |
ad9e2762 | 364 | |
5040ab67 TH |
365 | /* sometimes resuming a link requires several retries */ |
366 | ATA_LINK_RESUME_TRIES = 5, | |
367 | ||
14d2bac1 TH |
368 | /* how hard are we gonna try to probe/recover devices */ |
369 | ATA_PROBE_MAX_TRIES = 3, | |
022bdb07 | 370 | ATA_EH_DEV_TRIES = 3, |
e0a71752 TH |
371 | ATA_EH_PMP_TRIES = 5, |
372 | ATA_EH_PMP_LINK_TRIES = 3, | |
373 | ||
bf1bff6f | 374 | SATA_PMP_RW_TIMEOUT = 3000, /* PMP read/write timeout */ |
f5914a46 | 375 | |
87fbc5a0 TH |
376 | /* This should match the actual table size of |
377 | * ata_eh_cmd_timeout_table in libata-eh.c. | |
378 | */ | |
6013efd8 | 379 | ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 6, |
87fbc5a0 | 380 | |
93590859 | 381 | /* Horkage types. May be set by libata or controller on drives |
25985edc | 382 | (some horkage may be drive/controller pair dependent */ |
93590859 AC |
383 | |
384 | ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */ | |
6919a0a6 AC |
385 | ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */ |
386 | ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */ | |
18d6e9d5 | 387 | ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */ |
16c55b03 | 388 | ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */ |
50af2fa1 | 389 | ATA_HORKAGE_DISABLE = (1 << 5), /* Disable it */ |
93328e11 | 390 | ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ |
6bbfd53d | 391 | ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */ |
2d3b8eea | 392 | ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */ |
9ce8e307 | 393 | ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */ |
6a87e42e TH |
394 | ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands |
395 | not multiple of 16 bytes */ | |
877d0310 | 396 | ATA_HORKAGE_FIRMWARE_WARN = (1 << 12), /* firmware update warning */ |
9062712f | 397 | ATA_HORKAGE_1_5_GBPS = (1 << 13), /* force 1.5 Gbps */ |
d0cb43b3 | 398 | ATA_HORKAGE_NOSETXFER = (1 << 14), /* skip SETXFER, SATA only */ |
388539f3 | 399 | ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */ |
43c9c591 | 400 | ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ |
a32450e1 | 401 | ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17), /* Set max sects to 65535 */ |
b3a70601 | 402 | |
2dcb407e | 403 | /* DMA mask for user DMA control: User visible values; DO NOT |
b3a70601 AC |
404 | renumber */ |
405 | ATA_DMA_MASK_ATA = (1 << 0), /* DMA on ATA Disk */ | |
406 | ATA_DMA_MASK_ATAPI = (1 << 1), /* DMA on ATAPI */ | |
407 | ATA_DMA_MASK_CFA = (1 << 2), /* DMA on CF Card */ | |
ceb0c642 TH |
408 | |
409 | /* ATAPI command types */ | |
410 | ATAPI_READ = 0, /* READs */ | |
411 | ATAPI_WRITE = 1, /* WRITEs */ | |
412 | ATAPI_READ_CD = 2, /* READ CD [MSF] */ | |
e52dcc48 TH |
413 | ATAPI_PASS_THRU = 3, /* SAT pass-thru */ |
414 | ATAPI_MISC = 4, /* the rest */ | |
624d5c51 TH |
415 | |
416 | /* Timing constants */ | |
417 | ATA_TIMING_SETUP = (1 << 0), | |
418 | ATA_TIMING_ACT8B = (1 << 1), | |
419 | ATA_TIMING_REC8B = (1 << 2), | |
420 | ATA_TIMING_CYC8B = (1 << 3), | |
421 | ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B | | |
422 | ATA_TIMING_CYC8B, | |
423 | ATA_TIMING_ACTIVE = (1 << 4), | |
424 | ATA_TIMING_RECOVER = (1 << 5), | |
3ada9c12 DD |
425 | ATA_TIMING_DMACK_HOLD = (1 << 6), |
426 | ATA_TIMING_CYCLE = (1 << 7), | |
427 | ATA_TIMING_UDMA = (1 << 8), | |
624d5c51 TH |
428 | ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B | |
429 | ATA_TIMING_REC8B | ATA_TIMING_CYC8B | | |
430 | ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | | |
3ada9c12 DD |
431 | ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE | |
432 | ATA_TIMING_UDMA, | |
f1bce7f8 TH |
433 | |
434 | /* ACPI constants */ | |
435 | ATA_ACPI_FILTER_SETXFER = 1 << 0, | |
436 | ATA_ACPI_FILTER_LOCK = 1 << 1, | |
437 | ATA_ACPI_FILTER_DIPM = 1 << 2, | |
fa5b561c TH |
438 | ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3, /* FPDMA non-zero offset */ |
439 | ATA_ACPI_FILTER_FPDMA_AA = 1 << 4, /* FPDMA auto activate */ | |
f1bce7f8 TH |
440 | |
441 | ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | | |
442 | ATA_ACPI_FILTER_LOCK | | |
443 | ATA_ACPI_FILTER_DIPM, | |
1da177e4 LT |
444 | }; |
445 | ||
7dc951ae TH |
446 | enum ata_xfer_mask { |
447 | ATA_MASK_PIO = ((1LU << ATA_NR_PIO_MODES) - 1) | |
448 | << ATA_SHIFT_PIO, | |
449 | ATA_MASK_MWDMA = ((1LU << ATA_NR_MWDMA_MODES) - 1) | |
450 | << ATA_SHIFT_MWDMA, | |
451 | ATA_MASK_UDMA = ((1LU << ATA_NR_UDMA_MODES) - 1) | |
452 | << ATA_SHIFT_UDMA, | |
453 | }; | |
454 | ||
14be71f4 | 455 | enum hsm_task_states { |
c56b14d2 | 456 | HSM_ST_IDLE, /* no command on going */ |
71527647 AL |
457 | HSM_ST_FIRST, /* (waiting the device to) |
458 | write CDB or first data block */ | |
c56b14d2 AL |
459 | HSM_ST, /* (waiting the device to) transfer data */ |
460 | HSM_ST_LAST, /* (waiting the device to) complete command */ | |
c56b14d2 | 461 | HSM_ST_ERR, /* error */ |
1da177e4 LT |
462 | }; |
463 | ||
a7dac447 | 464 | enum ata_completion_errors { |
11a56d24 TH |
465 | AC_ERR_DEV = (1 << 0), /* device reported error */ |
466 | AC_ERR_HSM = (1 << 1), /* host state machine violation */ | |
467 | AC_ERR_TIMEOUT = (1 << 2), /* timeout */ | |
468 | AC_ERR_MEDIA = (1 << 3), /* media error */ | |
469 | AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */ | |
470 | AC_ERR_HOST_BUS = (1 << 5), /* host bus error */ | |
471 | AC_ERR_SYSTEM = (1 << 6), /* system error */ | |
472 | AC_ERR_INVALID = (1 << 7), /* invalid argument */ | |
473 | AC_ERR_OTHER = (1 << 8), /* unknown */ | |
55a8e2c8 | 474 | AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */ |
5335b729 | 475 | AC_ERR_NCQ = (1 << 10), /* marker for offending NCQ qc */ |
a7dac447 JG |
476 | }; |
477 | ||
c93b263e TH |
478 | /* |
479 | * Link power management policy: If you alter this, you also need to | |
480 | * alter libata-scsi.c (for the ascii descriptions) | |
481 | */ | |
482 | enum ata_lpm_policy { | |
483 | ATA_LPM_UNKNOWN, | |
484 | ATA_LPM_MAX_POWER, | |
485 | ATA_LPM_MED_POWER, | |
486 | ATA_LPM_MIN_POWER, | |
487 | }; | |
488 | ||
6b7ae954 TH |
489 | enum ata_lpm_hints { |
490 | ATA_LPM_EMPTY = (1 << 0), /* port empty/probing */ | |
491 | ATA_LPM_HIPM = (1 << 1), /* may use HIPM */ | |
492 | }; | |
493 | ||
1da177e4 LT |
494 | /* forward declarations */ |
495 | struct scsi_device; | |
496 | struct ata_port_operations; | |
497 | struct ata_port; | |
cc0680a5 | 498 | struct ata_link; |
1da177e4 LT |
499 | struct ata_queued_cmd; |
500 | ||
501 | /* typedefs */ | |
77853bf2 | 502 | typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); |
cc0680a5 TH |
503 | typedef int (*ata_prereset_fn_t)(struct ata_link *link, unsigned long deadline); |
504 | typedef int (*ata_reset_fn_t)(struct ata_link *link, unsigned int *classes, | |
d4b2bab4 | 505 | unsigned long deadline); |
cc0680a5 | 506 | typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes); |
1da177e4 | 507 | |
ee959b00 | 508 | extern struct device_attribute dev_attr_link_power_management_policy; |
45fabbb7 | 509 | extern struct device_attribute dev_attr_unload_heads; |
18f7ba4c KCA |
510 | extern struct device_attribute dev_attr_em_message_type; |
511 | extern struct device_attribute dev_attr_em_message; | |
512 | extern struct device_attribute dev_attr_sw_activity; | |
513 | ||
514 | enum sw_activity { | |
515 | OFF, | |
516 | BLINK_ON, | |
517 | BLINK_OFF, | |
518 | }; | |
ca77329f | 519 | |
127102ae | 520 | #ifdef CONFIG_ATA_SFF |
1da177e4 | 521 | struct ata_ioports { |
0d5ff566 TH |
522 | void __iomem *cmd_addr; |
523 | void __iomem *data_addr; | |
524 | void __iomem *error_addr; | |
525 | void __iomem *feature_addr; | |
526 | void __iomem *nsect_addr; | |
527 | void __iomem *lbal_addr; | |
528 | void __iomem *lbam_addr; | |
529 | void __iomem *lbah_addr; | |
530 | void __iomem *device_addr; | |
531 | void __iomem *status_addr; | |
532 | void __iomem *command_addr; | |
533 | void __iomem *altstatus_addr; | |
534 | void __iomem *ctl_addr; | |
9a7780c9 | 535 | #ifdef CONFIG_ATA_BMDMA |
0d5ff566 | 536 | void __iomem *bmdma_addr; |
9a7780c9 | 537 | #endif /* CONFIG_ATA_BMDMA */ |
0d5ff566 | 538 | void __iomem *scr_addr; |
1da177e4 | 539 | }; |
127102ae | 540 | #endif /* CONFIG_ATA_SFF */ |
1da177e4 | 541 | |
cca3974e | 542 | struct ata_host { |
1da177e4 LT |
543 | spinlock_t lock; |
544 | struct device *dev; | |
0d5ff566 | 545 | void __iomem * const *iomap; |
1da177e4 LT |
546 | unsigned int n_ports; |
547 | void *private_data; | |
029cfd6b | 548 | struct ata_port_operations *ops; |
5444a6f4 | 549 | unsigned long flags; |
c0c362b6 TH |
550 | |
551 | struct mutex eh_mutex; | |
552 | struct task_struct *eh_owner; | |
553 | ||
032af1ce | 554 | struct ata_port *simplex_claimed; /* channel owning the DMA */ |
f0eb62b8 | 555 | struct ata_port *ports[0]; |
1da177e4 LT |
556 | }; |
557 | ||
558 | struct ata_queued_cmd { | |
559 | struct ata_port *ap; | |
560 | struct ata_device *dev; | |
561 | ||
562 | struct scsi_cmnd *scsicmd; | |
563 | void (*scsidone)(struct scsi_cmnd *); | |
564 | ||
565 | struct ata_taskfile tf; | |
566 | u8 cdb[ATAPI_CDB_LEN]; | |
567 | ||
568 | unsigned long flags; /* ATA_QCFLAG_xxx */ | |
569 | unsigned int tag; | |
570 | unsigned int n_elem; | |
5825627c | 571 | unsigned int orig_n_elem; |
1da177e4 LT |
572 | |
573 | int dma_dir; | |
574 | ||
5a5dbd18 | 575 | unsigned int sect_size; |
cedc9a47 | 576 | |
1da177e4 | 577 | unsigned int nbytes; |
aacda375 | 578 | unsigned int extrabytes; |
1da177e4 LT |
579 | unsigned int curbytes; |
580 | ||
1da177e4 | 581 | struct scatterlist sgent; |
1da177e4 | 582 | |
ff2aeb1e | 583 | struct scatterlist *sg; |
1da177e4 | 584 | |
b34e9042 RK |
585 | struct scatterlist *cursg; |
586 | unsigned int cursg_ofs; | |
587 | ||
a22e2eb0 | 588 | unsigned int err_mask; |
e61e0672 | 589 | struct ata_taskfile result_tf; |
1da177e4 LT |
590 | ata_qc_cb_t complete_fn; |
591 | ||
1da177e4 | 592 | void *private_data; |
1c50dc83 | 593 | void *lldd_task; |
1da177e4 LT |
594 | }; |
595 | ||
cca3974e | 596 | struct ata_port_stats { |
1da177e4 LT |
597 | unsigned long unhandled_irq; |
598 | unsigned long idle_irq; | |
599 | unsigned long rw_reqbuf; | |
600 | }; | |
601 | ||
0c247c55 | 602 | struct ata_ering_entry { |
3884f7b0 | 603 | unsigned int eflags; |
0c247c55 TH |
604 | unsigned int err_mask; |
605 | u64 timestamp; | |
606 | }; | |
607 | ||
608 | struct ata_ering { | |
609 | int cursor; | |
610 | struct ata_ering_entry ring[ATA_ERING_SIZE]; | |
611 | }; | |
612 | ||
1da177e4 | 613 | struct ata_device { |
9af5c9c9 | 614 | struct ata_link *link; |
72fa4b74 | 615 | unsigned int devno; /* 0 or 1 */ |
75683fe7 | 616 | unsigned int horkage; /* List of broken features */ |
6866e7bc | 617 | unsigned long flags; /* ATA_DFLAG_xxx */ |
3edebac4 | 618 | struct scsi_device *sdev; /* attached SCSI device */ |
95514fd8 | 619 | void *private_data; |
fafbae87 | 620 | #ifdef CONFIG_ATA_ACPI |
398e0782 | 621 | union acpi_object *gtf_cache; |
110f66d2 | 622 | unsigned int gtf_filter; |
afe75951 AL |
623 | #endif |
624 | #ifdef CONFIG_SATA_ZPODD | |
625 | void *zpodd; | |
fafbae87 | 626 | #endif |
d9027470 | 627 | struct device tdev; |
99cf610a | 628 | /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ |
72fa4b74 | 629 | u64 n_sectors; /* size of device, if ATA */ |
5920dadf | 630 | u64 n_native_sectors; /* native size, if ATA */ |
1da177e4 | 631 | unsigned int class; /* ATA_DEV_xxx */ |
45fabbb7 | 632 | unsigned long unpark_deadline; |
e0a71752 | 633 | |
1da177e4 LT |
634 | u8 pio_mode; |
635 | u8 dma_mode; | |
636 | u8 xfer_mode; | |
637 | unsigned int xfer_shift; /* ATA_SHIFT_xxx */ | |
638 | ||
8cbd6df1 AL |
639 | unsigned int multi_count; /* sectors count for |
640 | READ/WRITE MULTIPLE */ | |
b00eec1d | 641 | unsigned int max_sectors; /* per-device max sectors */ |
6e7846e9 | 642 | unsigned int cdb_len; |
8bf62ece | 643 | |
acf356b1 | 644 | /* per-dev xfer mask */ |
7dc951ae TH |
645 | unsigned long pio_mask; |
646 | unsigned long mwdma_mask; | |
647 | unsigned long udma_mask; | |
acf356b1 | 648 | |
8bf62ece AL |
649 | /* for CHS addressing */ |
650 | u16 cylinders; /* Number of cylinders */ | |
651 | u16 heads; /* Number of heads */ | |
652 | u16 sectors; /* Number of sectors per track */ | |
0c247c55 | 653 | |
f7e98930 JG |
654 | union { |
655 | u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */ | |
656 | u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */ | |
657 | }; | |
99cf610a | 658 | |
803739d2 SH |
659 | /* DEVSLP Timing Variables from Identify Device Data Log */ |
660 | u8 devslp_timing[ATA_LOG_DEVSLP_SIZE]; | |
65fe1f0f | 661 | |
99cf610a TH |
662 | /* error history */ |
663 | int spdn_cnt; | |
664 | /* ering is CLEAR_END, read comment above CLEAR_END */ | |
665 | struct ata_ering ering; | |
1da177e4 LT |
666 | }; |
667 | ||
99cf610a TH |
668 | /* Fields between ATA_DEVICE_CLEAR_BEGIN and ATA_DEVICE_CLEAR_END are |
669 | * cleared to zero on ata_dev_init(). | |
72fa4b74 | 670 | */ |
99cf610a TH |
671 | #define ATA_DEVICE_CLEAR_BEGIN offsetof(struct ata_device, n_sectors) |
672 | #define ATA_DEVICE_CLEAR_END offsetof(struct ata_device, ering) | |
72fa4b74 | 673 | |
f3e81b19 TH |
674 | struct ata_eh_info { |
675 | struct ata_device *dev; /* offending device */ | |
676 | u32 serror; /* SError from LLDD */ | |
677 | unsigned int err_mask; /* port-wide err_mask */ | |
678 | unsigned int action; /* ATA_EH_* action mask */ | |
47005f25 | 679 | unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */ |
f3e81b19 | 680 | unsigned int flags; /* ATA_EHI_* flags */ |
abdda733 | 681 | |
abdda733 TH |
682 | unsigned int probe_mask; |
683 | ||
f3e81b19 TH |
684 | char desc[ATA_EH_DESC_LEN]; |
685 | int desc_len; | |
686 | }; | |
687 | ||
688 | struct ata_eh_context { | |
689 | struct ata_eh_info i; | |
690 | int tries[ATA_MAX_DEVICES]; | |
87fbc5a0 TH |
691 | int cmd_timeout_idx[ATA_MAX_DEVICES] |
692 | [ATA_EH_CMD_TIMEOUT_TABLE_SIZE]; | |
abdda733 TH |
693 | unsigned int classes[ATA_MAX_DEVICES]; |
694 | unsigned int did_probe_mask; | |
45fabbb7 | 695 | unsigned int unloaded_mask; |
00115e0f TH |
696 | unsigned int saved_ncq_enabled; |
697 | u8 saved_xfer_mode[ATA_MAX_DEVICES]; | |
0a2c0f56 TH |
698 | /* timestamp for the last reset attempt or success */ |
699 | unsigned long last_reset; | |
f3e81b19 TH |
700 | }; |
701 | ||
64578a3d TH |
702 | struct ata_acpi_drive |
703 | { | |
704 | u32 pio; | |
705 | u32 dma; | |
706 | } __packed; | |
707 | ||
708 | struct ata_acpi_gtm { | |
709 | struct ata_acpi_drive drive[2]; | |
710 | u32 flags; | |
711 | } __packed; | |
712 | ||
9af5c9c9 TH |
713 | struct ata_link { |
714 | struct ata_port *ap; | |
8989805d | 715 | int pmp; /* port multiplier port # */ |
9af5c9c9 | 716 | |
d9027470 | 717 | struct device tdev; |
9af5c9c9 TH |
718 | unsigned int active_tag; /* active tag on this link */ |
719 | u32 sactive; /* active NCQ commands */ | |
720 | ||
0c88758b TH |
721 | unsigned int flags; /* ATA_LFLAG_xxx */ |
722 | ||
d127ea7b | 723 | u32 saved_scontrol; /* SControl on probe */ |
9af5c9c9 TH |
724 | unsigned int hw_sata_spd_limit; |
725 | unsigned int sata_spd_limit; | |
726 | unsigned int sata_spd; /* current SATA PHY speed */ | |
6b7ae954 | 727 | enum ata_lpm_policy lpm_policy; |
9af5c9c9 TH |
728 | |
729 | /* record runtime error info, protected by host_set lock */ | |
730 | struct ata_eh_info eh_info; | |
731 | /* EH context */ | |
732 | struct ata_eh_context eh_context; | |
733 | ||
734 | struct ata_device device[ATA_MAX_DEVICES]; | |
735 | }; | |
d9027470 GG |
736 | #define ATA_LINK_CLEAR_BEGIN offsetof(struct ata_link, active_tag) |
737 | #define ATA_LINK_CLEAR_END offsetof(struct ata_link, device[0]) | |
9af5c9c9 | 738 | |
1da177e4 | 739 | struct ata_port { |
cca3974e | 740 | struct Scsi_Host *scsi_host; /* our co-allocated scsi host */ |
029cfd6b | 741 | struct ata_port_operations *ops; |
ba6a1308 | 742 | spinlock_t *lock; |
e3cf95dd AC |
743 | /* Flags owned by the EH context. Only EH should touch these once the |
744 | port is active */ | |
1da177e4 | 745 | unsigned long flags; /* ATA_FLAG_xxx */ |
e3cf95dd | 746 | /* Flags that change dynamically, protected by ap->lock */ |
b51e9e5d | 747 | unsigned int pflags; /* ATA_PFLAG_xxx */ |
44877b4e TH |
748 | unsigned int print_id; /* user visible unique port ID */ |
749 | unsigned int port_no; /* 0 based port no. inside the host */ | |
1da177e4 | 750 | |
127102ae | 751 | #ifdef CONFIG_ATA_SFF |
1da177e4 | 752 | struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ |
1da177e4 LT |
753 | u8 ctl; /* cache of ATA control register */ |
754 | u8 last_ctl; /* Cache last written value */ | |
ea3c6450 | 755 | struct ata_link* sff_pio_task_link; /* link currently used */ |
c429137a | 756 | struct delayed_work sff_pio_task; |
9a7780c9 | 757 | #ifdef CONFIG_ATA_BMDMA |
f60d7011 TH |
758 | struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ |
759 | dma_addr_t bmdma_prd_dma; /* and its DMA mapping */ | |
9a7780c9 | 760 | #endif /* CONFIG_ATA_BMDMA */ |
5fe7454a TH |
761 | #endif /* CONFIG_ATA_SFF */ |
762 | ||
1da177e4 LT |
763 | unsigned int pio_mask; |
764 | unsigned int mwdma_mask; | |
765 | unsigned int udma_mask; | |
766 | unsigned int cbl; /* cable type; ATA_CBL_xxx */ | |
1da177e4 LT |
767 | |
768 | struct ata_queued_cmd qcmd[ATA_MAX_QUEUE]; | |
8a8bc223 | 769 | unsigned long qc_allocated; |
dedaf2b0 | 770 | unsigned int qc_active; |
da917d69 | 771 | int nr_active_links; /* #links with active qcs */ |
dedaf2b0 | 772 | |
b1c72916 TH |
773 | struct ata_link link; /* host default link */ |
774 | struct ata_link *slave_link; /* see ata_slave_link_init() */ | |
1da177e4 | 775 | |
8989805d TH |
776 | int nr_pmp_links; /* nr of available PMP links */ |
777 | struct ata_link *pmp_link; /* array of PMP links */ | |
da917d69 | 778 | struct ata_link *excl_link; /* for PMP qc exclusion */ |
8989805d | 779 | |
cca3974e JG |
780 | struct ata_port_stats stats; |
781 | struct ata_host *host; | |
2f1f610b | 782 | struct device *dev; |
d9027470 | 783 | struct device tdev; |
1da177e4 | 784 | |
ad72cf98 | 785 | struct mutex scsi_scan_mutex; |
52bad64d | 786 | struct delayed_work hotplug_task; |
3b01b8af | 787 | struct work_struct scsi_rescan_task; |
86e45b6b | 788 | |
14be71f4 | 789 | unsigned int hsm_task_state; |
1da177e4 | 790 | |
bfd60579 | 791 | u32 msg_enable; |
a72ec4ce | 792 | struct list_head eh_done_q; |
c6cf9e99 | 793 | wait_queue_head_t eh_wait_q; |
a1e10f7e | 794 | int eh_tries; |
45fabbb7 | 795 | struct completion park_req_pending; |
bfd60579 | 796 | |
500530f6 TH |
797 | pm_message_t pm_mesg; |
798 | int *pm_result; | |
6b7ae954 | 799 | enum ata_lpm_policy target_lpm_policy; |
500530f6 | 800 | |
5ddf24c5 TH |
801 | struct timer_list fastdrain_timer; |
802 | unsigned long fastdrain_cnt; | |
803 | ||
18f7ba4c | 804 | int em_message_type; |
1da177e4 | 805 | void *private_data; |
fe635c7e | 806 | |
fafbae87 | 807 | #ifdef CONFIG_ATA_ACPI |
c05e6ff0 | 808 | struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */ |
fafbae87 | 809 | #endif |
84bda12a TH |
810 | /* owned by EH */ |
811 | u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned; | |
1da177e4 LT |
812 | }; |
813 | ||
029cfd6b TH |
814 | /* The following initializer overrides a method to NULL whether one of |
815 | * its parent has the method defined or not. This is equivalent to | |
816 | * ERR_PTR(-ENOENT). Unfortunately, ERR_PTR doesn't render a constant | |
817 | * expression and thus can't be used as an initializer. | |
818 | */ | |
819 | #define ATA_OP_NULL (void *)(unsigned long)(-ENOENT) | |
820 | ||
1da177e4 | 821 | struct ata_port_operations { |
c1bc899f TH |
822 | /* |
823 | * Command execution | |
824 | */ | |
825 | int (*qc_defer)(struct ata_queued_cmd *qc); | |
826 | int (*check_atapi_dma)(struct ata_queued_cmd *qc); | |
827 | void (*qc_prep)(struct ata_queued_cmd *qc); | |
828 | unsigned int (*qc_issue)(struct ata_queued_cmd *qc); | |
22183bf5 | 829 | bool (*qc_fill_rtf)(struct ata_queued_cmd *qc); |
1da177e4 | 830 | |
c1bc899f TH |
831 | /* |
832 | * Configuration and exception handling | |
833 | */ | |
834 | int (*cable_detect)(struct ata_port *ap); | |
835 | unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask); | |
836 | void (*set_piomode)(struct ata_port *ap, struct ata_device *dev); | |
837 | void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev); | |
838 | int (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev); | |
963e4975 | 839 | unsigned int (*read_id)(struct ata_device *dev, struct ata_taskfile *tf, u16 *id); |
1da177e4 | 840 | |
c1bc899f | 841 | void (*dev_config)(struct ata_device *dev); |
1da177e4 | 842 | |
c1bc899f TH |
843 | void (*freeze)(struct ata_port *ap); |
844 | void (*thaw)(struct ata_port *ap); | |
a1efdaba TH |
845 | ata_prereset_fn_t prereset; |
846 | ata_reset_fn_t softreset; | |
847 | ata_reset_fn_t hardreset; | |
848 | ata_postreset_fn_t postreset; | |
849 | ata_prereset_fn_t pmp_prereset; | |
850 | ata_reset_fn_t pmp_softreset; | |
851 | ata_reset_fn_t pmp_hardreset; | |
852 | ata_postreset_fn_t pmp_postreset; | |
c1bc899f | 853 | void (*error_handler)(struct ata_port *ap); |
c96f1732 | 854 | void (*lost_interrupt)(struct ata_port *ap); |
c1bc899f | 855 | void (*post_internal_cmd)(struct ata_queued_cmd *qc); |
e4a9c373 DW |
856 | void (*sched_eh)(struct ata_port *ap); |
857 | void (*end_eh)(struct ata_port *ap); | |
c1bc899f TH |
858 | |
859 | /* | |
860 | * Optional features | |
861 | */ | |
82ef04fb TH |
862 | int (*scr_read)(struct ata_link *link, unsigned int sc_reg, u32 *val); |
863 | int (*scr_write)(struct ata_link *link, unsigned int sc_reg, u32 val); | |
c1bc899f TH |
864 | void (*pmp_attach)(struct ata_port *ap); |
865 | void (*pmp_detach)(struct ata_port *ap); | |
6b7ae954 TH |
866 | int (*set_lpm)(struct ata_link *link, enum ata_lpm_policy policy, |
867 | unsigned hints); | |
c1bc899f TH |
868 | |
869 | /* | |
870 | * Start, stop, suspend and resume | |
871 | */ | |
872 | int (*port_suspend)(struct ata_port *ap, pm_message_t mesg); | |
873 | int (*port_resume)(struct ata_port *ap); | |
874 | int (*port_start)(struct ata_port *ap); | |
875 | void (*port_stop)(struct ata_port *ap); | |
876 | void (*host_stop)(struct ata_host *host); | |
877 | ||
127102ae | 878 | #ifdef CONFIG_ATA_SFF |
c1bc899f TH |
879 | /* |
880 | * SFF / taskfile oriented ops | |
881 | */ | |
5682ed33 | 882 | void (*sff_dev_select)(struct ata_port *ap, unsigned int device); |
41dec29b | 883 | void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); |
5682ed33 TH |
884 | u8 (*sff_check_status)(struct ata_port *ap); |
885 | u8 (*sff_check_altstatus)(struct ata_port *ap); | |
886 | void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf); | |
887 | void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf); | |
888 | void (*sff_exec_command)(struct ata_port *ap, | |
889 | const struct ata_taskfile *tf); | |
890 | unsigned int (*sff_data_xfer)(struct ata_device *dev, | |
891 | unsigned char *buf, unsigned int buflen, int rw); | |
e42a542b | 892 | void (*sff_irq_on)(struct ata_port *); |
27943620 | 893 | bool (*sff_irq_check)(struct ata_port *); |
5682ed33 | 894 | void (*sff_irq_clear)(struct ata_port *); |
8244cd05 | 895 | void (*sff_drain_fifo)(struct ata_queued_cmd *qc); |
5682ed33 | 896 | |
9a7780c9 | 897 | #ifdef CONFIG_ATA_BMDMA |
c1bc899f TH |
898 | void (*bmdma_setup)(struct ata_queued_cmd *qc); |
899 | void (*bmdma_start)(struct ata_queued_cmd *qc); | |
900 | void (*bmdma_stop)(struct ata_queued_cmd *qc); | |
901 | u8 (*bmdma_status)(struct ata_port *ap); | |
9a7780c9 | 902 | #endif /* CONFIG_ATA_BMDMA */ |
127102ae | 903 | #endif /* CONFIG_ATA_SFF */ |
c1bc899f | 904 | |
18f7ba4c KCA |
905 | ssize_t (*em_show)(struct ata_port *ap, char *buf); |
906 | ssize_t (*em_store)(struct ata_port *ap, const char *message, | |
907 | size_t size); | |
908 | ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf); | |
909 | ssize_t (*sw_activity_store)(struct ata_device *dev, | |
910 | enum sw_activity val); | |
c1bc899f TH |
911 | /* |
912 | * Obsolete | |
9ec957f2 | 913 | */ |
c1bc899f TH |
914 | void (*phy_reset)(struct ata_port *ap); |
915 | void (*eng_timeout)(struct ata_port *ap); | |
029cfd6b TH |
916 | |
917 | /* | |
918 | * ->inherits must be the last field and all the preceding | |
919 | * fields must be pointers. | |
920 | */ | |
921 | const struct ata_port_operations *inherits; | |
1da177e4 LT |
922 | }; |
923 | ||
924 | struct ata_port_info { | |
cca3974e | 925 | unsigned long flags; |
0c88758b | 926 | unsigned long link_flags; |
1da177e4 LT |
927 | unsigned long pio_mask; |
928 | unsigned long mwdma_mask; | |
929 | unsigned long udma_mask; | |
029cfd6b | 930 | struct ata_port_operations *port_ops; |
e99f8b5e | 931 | void *private_data; |
1da177e4 LT |
932 | }; |
933 | ||
452503f9 AC |
934 | struct ata_timing { |
935 | unsigned short mode; /* ATA mode */ | |
936 | unsigned short setup; /* t1 */ | |
937 | unsigned short act8b; /* t2 for 8-bit I/O */ | |
938 | unsigned short rec8b; /* t2i for 8-bit I/O */ | |
939 | unsigned short cyc8b; /* t0 for 8-bit I/O */ | |
940 | unsigned short active; /* t2 or tD */ | |
941 | unsigned short recover; /* t2i or tK */ | |
3ada9c12 | 942 | unsigned short dmack_hold; /* tj */ |
452503f9 AC |
943 | unsigned short cycle; /* t0 */ |
944 | unsigned short udma; /* t2CYCTYP/2 */ | |
945 | }; | |
946 | ||
624d5c51 TH |
947 | /* |
948 | * Core layer - drivers/ata/libata-core.c | |
949 | */ | |
e9c83914 TH |
950 | extern const unsigned long sata_deb_timing_normal[]; |
951 | extern const unsigned long sata_deb_timing_hotplug[]; | |
952 | extern const unsigned long sata_deb_timing_long[]; | |
953 | ||
029cfd6b | 954 | extern struct ata_port_operations ata_dummy_port_ops; |
21b0ad4f | 955 | extern const struct ata_port_info ata_dummy_port_info; |
dd5b06c4 | 956 | |
e9c83914 TH |
957 | static inline const unsigned long * |
958 | sata_ehc_deb_timing(struct ata_eh_context *ehc) | |
959 | { | |
960 | if (ehc->i.flags & ATA_EHI_HOTPLUGGED) | |
961 | return sata_deb_timing_hotplug; | |
962 | else | |
963 | return sata_deb_timing_normal; | |
964 | } | |
d7bb4cc7 | 965 | |
dd5b06c4 TH |
966 | static inline int ata_port_is_dummy(struct ata_port *ap) |
967 | { | |
968 | return ap->ops == &ata_dummy_port_ops; | |
969 | } | |
970 | ||
936fd732 | 971 | extern int sata_set_spd(struct ata_link *link); |
0aa1113d | 972 | extern int ata_std_prereset(struct ata_link *link, unsigned long deadline); |
aa2731ad TH |
973 | extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, |
974 | int (*check_ready)(struct ata_link *link)); | |
936fd732 TH |
975 | extern int sata_link_debounce(struct ata_link *link, |
976 | const unsigned long *params, unsigned long deadline); | |
977 | extern int sata_link_resume(struct ata_link *link, const unsigned long *params, | |
978 | unsigned long deadline); | |
1152b261 TH |
979 | extern int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy, |
980 | bool spm_wakeup); | |
cc0680a5 | 981 | extern int sata_link_hardreset(struct ata_link *link, |
9dadd45b TH |
982 | const unsigned long *timing, unsigned long deadline, |
983 | bool *online, int (*check_ready)(struct ata_link *)); | |
57c9efdf TH |
984 | extern int sata_std_hardreset(struct ata_link *link, unsigned int *class, |
985 | unsigned long deadline); | |
203c75b8 | 986 | extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); |
2855568b | 987 | |
f3187195 | 988 | extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports); |
f5cda257 TH |
989 | extern struct ata_host *ata_host_alloc_pinfo(struct device *dev, |
990 | const struct ata_port_info * const * ppi, int n_ports); | |
b1c72916 | 991 | extern int ata_slave_link_init(struct ata_port *ap); |
ecef7253 | 992 | extern int ata_host_start(struct ata_host *host); |
f3187195 TH |
993 | extern int ata_host_register(struct ata_host *host, |
994 | struct scsi_host_template *sht); | |
f5cda257 TH |
995 | extern int ata_host_activate(struct ata_host *host, int irq, |
996 | irq_handler_t irq_handler, unsigned long irq_flags, | |
997 | struct scsi_host_template *sht); | |
0529c159 | 998 | extern void ata_host_detach(struct ata_host *host); |
8d8e7d13 | 999 | extern void ata_host_init(struct ata_host *, struct device *, struct ata_port_operations *); |
193515d5 | 1000 | extern int ata_scsi_detect(struct scsi_host_template *sht); |
1da177e4 | 1001 | extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg); |
f281233d | 1002 | extern int ata_scsi_queuecmd(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
94be9a58 JG |
1003 | extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev, |
1004 | int cmd, void __user *arg); | |
80289167 | 1005 | extern void ata_sas_port_destroy(struct ata_port *); |
cca3974e | 1006 | extern struct ata_port *ata_sas_port_alloc(struct ata_host *, |
80289167 | 1007 | struct ata_port_info *, struct Scsi_Host *); |
b2024459 DW |
1008 | extern void ata_sas_async_probe(struct ata_port *ap); |
1009 | extern int ata_sas_sync_probe(struct ata_port *ap); | |
80289167 BK |
1010 | extern int ata_sas_port_init(struct ata_port *); |
1011 | extern int ata_sas_port_start(struct ata_port *ap); | |
1012 | extern void ata_sas_port_stop(struct ata_port *ap); | |
1013 | extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *); | |
b27dcfb0 | 1014 | extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap); |
936fd732 TH |
1015 | extern int sata_scr_valid(struct ata_link *link); |
1016 | extern int sata_scr_read(struct ata_link *link, int reg, u32 *val); | |
1017 | extern int sata_scr_write(struct ata_link *link, int reg, u32 val); | |
1018 | extern int sata_scr_write_flush(struct ata_link *link, int reg, u32 val); | |
b5b3fa38 TH |
1019 | extern bool ata_link_online(struct ata_link *link); |
1020 | extern bool ata_link_offline(struct ata_link *link); | |
6ffa01d8 | 1021 | #ifdef CONFIG_PM |
cca3974e JG |
1022 | extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg); |
1023 | extern void ata_host_resume(struct ata_host *host); | |
2fcbdcb4 DW |
1024 | extern int ata_sas_port_async_suspend(struct ata_port *ap, int *async); |
1025 | extern int ata_sas_port_async_resume(struct ata_port *ap, int *async); | |
1026 | #else | |
1027 | static inline int ata_sas_port_async_suspend(struct ata_port *ap, int *async) | |
1028 | { | |
1029 | return 0; | |
1030 | } | |
1031 | static inline int ata_sas_port_async_resume(struct ata_port *ap, int *async) | |
1032 | { | |
1033 | return 0; | |
1034 | } | |
6ffa01d8 | 1035 | #endif |
67846b30 | 1036 | extern int ata_ratelimit(void); |
97750ceb TH |
1037 | extern void ata_msleep(struct ata_port *ap, unsigned int msecs); |
1038 | extern u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask, | |
1039 | u32 val, unsigned long interval, unsigned long timeout); | |
436d34b3 | 1040 | extern int atapi_cmd_type(u8 opcode); |
9977126c TH |
1041 | extern void ata_tf_to_fis(const struct ata_taskfile *tf, |
1042 | u8 pmp, int is_cmd, u8 *fis); | |
057ace5e | 1043 | extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf); |
7dc951ae TH |
1044 | extern unsigned long ata_pack_xfermask(unsigned long pio_mask, |
1045 | unsigned long mwdma_mask, unsigned long udma_mask); | |
1046 | extern void ata_unpack_xfermask(unsigned long xfer_mask, | |
1047 | unsigned long *pio_mask, unsigned long *mwdma_mask, | |
1048 | unsigned long *udma_mask); | |
1049 | extern u8 ata_xfer_mask2mode(unsigned long xfer_mask); | |
1050 | extern unsigned long ata_xfer_mode2mask(u8 xfer_mode); | |
1051 | extern int ata_xfer_mode2shift(unsigned long xfer_mode); | |
1052 | extern const char *ata_mode_string(unsigned long xfer_mask); | |
1053 | extern unsigned long ata_id_xfermask(const u16 *id); | |
31cc23b3 | 1054 | extern int ata_std_qc_defer(struct ata_queued_cmd *qc); |
e46834cd | 1055 | extern void ata_noop_qc_prep(struct ata_queued_cmd *qc); |
1da177e4 LT |
1056 | extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, |
1057 | unsigned int n_elem); | |
057ace5e | 1058 | extern unsigned int ata_dev_classify(const struct ata_taskfile *tf); |
10305f0f | 1059 | extern void ata_dev_disable(struct ata_device *adev); |
6a62a04d TH |
1060 | extern void ata_id_string(const u16 *id, unsigned char *s, |
1061 | unsigned int ofs, unsigned int len); | |
1062 | extern void ata_id_c_string(const u16 *id, unsigned char *s, | |
1063 | unsigned int ofs, unsigned int len); | |
963e4975 AC |
1064 | extern unsigned int ata_do_dev_read_id(struct ata_device *dev, |
1065 | struct ata_taskfile *tf, u16 *id); | |
f686bcb8 | 1066 | extern void ata_qc_complete(struct ata_queued_cmd *qc); |
79f97dad | 1067 | extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active); |
b27dcfb0 | 1068 | extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd); |
1da177e4 LT |
1069 | extern int ata_std_bios_param(struct scsi_device *sdev, |
1070 | struct block_device *bdev, | |
1071 | sector_t capacity, int geom[]); | |
d8d9129e | 1072 | extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); |
1da177e4 | 1073 | extern int ata_scsi_slave_config(struct scsi_device *sdev); |
83c47bcb | 1074 | extern void ata_scsi_slave_destroy(struct scsi_device *sdev); |
a6e6ce8e | 1075 | extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, |
e881a172 | 1076 | int queue_depth, int reason); |
f6e67035 DW |
1077 | extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, |
1078 | int queue_depth, int reason); | |
3373efd8 | 1079 | extern struct ata_device *ata_dev_pair(struct ata_device *adev); |
0260731f | 1080 | extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); |
0e0b494c JB |
1081 | extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); |
1082 | extern void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap, struct list_head *eh_q); | |
1da177e4 | 1083 | |
be0d18df AC |
1084 | extern int ata_cable_40wire(struct ata_port *ap); |
1085 | extern int ata_cable_80wire(struct ata_port *ap); | |
1086 | extern int ata_cable_sata(struct ata_port *ap); | |
c88f90c3 | 1087 | extern int ata_cable_ignore(struct ata_port *ap); |
be0d18df AC |
1088 | extern int ata_cable_unknown(struct ata_port *ap); |
1089 | ||
624d5c51 | 1090 | /* Timing helpers */ |
1bc4ccff | 1091 | extern unsigned int ata_pio_need_iordy(const struct ata_device *); |
6357357c | 1092 | extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode); |
452503f9 AC |
1093 | extern int ata_timing_compute(struct ata_device *, unsigned short, |
1094 | struct ata_timing *, int, int); | |
1095 | extern void ata_timing_merge(const struct ata_timing *, | |
1096 | const struct ata_timing *, struct ata_timing *, | |
1097 | unsigned int); | |
a0f79b92 | 1098 | extern u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle); |
452503f9 | 1099 | |
624d5c51 TH |
1100 | /* PCI */ |
1101 | #ifdef CONFIG_PCI | |
1102 | struct pci_dev; | |
1103 | ||
1104 | struct pci_bits { | |
1105 | unsigned int reg; /* PCI config register to read */ | |
1106 | unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */ | |
1107 | unsigned long mask; | |
1108 | unsigned long val; | |
452503f9 AC |
1109 | }; |
1110 | ||
624d5c51 TH |
1111 | extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits); |
1112 | extern void ata_pci_remove_one(struct pci_dev *pdev); | |
1113 | ||
1114 | #ifdef CONFIG_PM | |
1115 | extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg); | |
1116 | extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev); | |
1117 | extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); | |
1118 | extern int ata_pci_device_resume(struct pci_dev *pdev); | |
1119 | #endif /* CONFIG_PM */ | |
1120 | #endif /* CONFIG_PCI */ | |
1121 | ||
b7db04d9 BN |
1122 | struct platform_device; |
1123 | ||
1124 | extern int ata_platform_remove_one(struct platform_device *pdev); | |
1125 | ||
624d5c51 TH |
1126 | /* |
1127 | * ACPI - drivers/ata/libata-acpi.c | |
1128 | */ | |
e1ddb4b6 | 1129 | #ifdef CONFIG_ATA_ACPI |
c05e6ff0 TH |
1130 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
1131 | { | |
1132 | if (ap->pflags & ATA_PFLAG_INIT_GTM_VALID) | |
1133 | return &ap->__acpi_init_gtm; | |
1134 | return NULL; | |
1135 | } | |
0d02f0b2 TH |
1136 | int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm); |
1137 | int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm); | |
7c77fa4d TH |
1138 | unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev, |
1139 | const struct ata_acpi_gtm *gtm); | |
30dcf76a MG |
1140 | acpi_handle ata_ap_acpi_handle(struct ata_port *ap); |
1141 | acpi_handle ata_dev_acpi_handle(struct ata_device *dev); | |
021ee9a6 | 1142 | int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm); |
e1ddb4b6 | 1143 | #else |
c05e6ff0 TH |
1144 | static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) |
1145 | { | |
1146 | return NULL; | |
1147 | } | |
7c77fa4d TH |
1148 | |
1149 | static inline int ata_acpi_stm(const struct ata_port *ap, | |
1150 | struct ata_acpi_gtm *stm) | |
1151 | { | |
1152 | return -ENOSYS; | |
1153 | } | |
1154 | ||
1155 | static inline int ata_acpi_gtm(const struct ata_port *ap, | |
1156 | struct ata_acpi_gtm *stm) | |
1157 | { | |
1158 | return -ENOSYS; | |
1159 | } | |
1160 | ||
1161 | static inline unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev, | |
1162 | const struct ata_acpi_gtm *gtm) | |
1163 | { | |
1164 | return 0; | |
1165 | } | |
021ee9a6 TH |
1166 | |
1167 | static inline int ata_acpi_cbl_80wire(struct ata_port *ap, | |
1168 | const struct ata_acpi_gtm *gtm) | |
1169 | { | |
1170 | return 0; | |
1171 | } | |
e1ddb4b6 | 1172 | #endif |
1da177e4 | 1173 | |
ece1d636 | 1174 | /* |
624d5c51 | 1175 | * EH - drivers/ata/libata-eh.c |
ece1d636 | 1176 | */ |
7b70fc03 | 1177 | extern void ata_port_schedule_eh(struct ata_port *ap); |
81c757bc | 1178 | extern void ata_port_wait_eh(struct ata_port *ap); |
dbd82616 | 1179 | extern int ata_link_abort(struct ata_link *link); |
7b70fc03 | 1180 | extern int ata_port_abort(struct ata_port *ap); |
e3180499 | 1181 | extern int ata_port_freeze(struct ata_port *ap); |
7d77b247 | 1182 | extern int sata_async_notification(struct ata_port *ap); |
e3180499 TH |
1183 | |
1184 | extern void ata_eh_freeze_port(struct ata_port *ap); | |
1185 | extern void ata_eh_thaw_port(struct ata_port *ap); | |
7b70fc03 | 1186 | |
ece1d636 TH |
1187 | extern void ata_eh_qc_complete(struct ata_queued_cmd *qc); |
1188 | extern void ata_eh_qc_retry(struct ata_queued_cmd *qc); | |
10acf3b0 | 1189 | extern void ata_eh_analyze_ncq_error(struct ata_link *link); |
ece1d636 | 1190 | |
f5914a46 TH |
1191 | extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, |
1192 | ata_reset_fn_t softreset, ata_reset_fn_t hardreset, | |
1193 | ata_postreset_fn_t postreset); | |
a1efdaba | 1194 | extern void ata_std_error_handler(struct ata_port *ap); |
e4a9c373 DW |
1195 | extern void ata_std_sched_eh(struct ata_port *ap); |
1196 | extern void ata_std_end_eh(struct ata_port *ap); | |
8a745f1f | 1197 | extern int ata_link_nr_enabled(struct ata_link *link); |
022bdb07 | 1198 | |
68d1d07b TH |
1199 | /* |
1200 | * Base operations to inherit from and initializers for sht | |
1201 | * | |
1202 | * Operations | |
1203 | * | |
1204 | * base : Common to all libata drivers. | |
1205 | * sata : SATA controllers w/ native interface. | |
1206 | * pmp : SATA controllers w/ PMP support. | |
1207 | * sff : SFF ATA controllers w/o BMDMA support. | |
1208 | * bmdma : SFF ATA controllers w/ BMDMA support. | |
1209 | * | |
1210 | * sht initializers | |
1211 | * | |
1212 | * BASE : Common to all libata drivers. The user must set | |
1213 | * sg_tablesize and dma_boundary. | |
1214 | * PIO : SFF ATA controllers w/ only PIO support. | |
1215 | * BMDMA : SFF ATA controllers w/ BMDMA support. sg_tablesize and | |
1216 | * dma_boundary are set to BMDMA limits. | |
1217 | * NCQ : SATA controllers supporting NCQ. The user must set | |
1218 | * sg_tablesize, dma_boundary and can_queue. | |
1219 | */ | |
1220 | extern const struct ata_port_operations ata_base_port_ops; | |
1221 | extern const struct ata_port_operations sata_port_ops; | |
45fabbb7 | 1222 | extern struct device_attribute *ata_common_sdev_attrs[]; |
68d1d07b TH |
1223 | |
1224 | #define ATA_BASE_SHT(drv_name) \ | |
1225 | .module = THIS_MODULE, \ | |
1226 | .name = drv_name, \ | |
1227 | .ioctl = ata_scsi_ioctl, \ | |
1228 | .queuecommand = ata_scsi_queuecmd, \ | |
1229 | .can_queue = ATA_DEF_QUEUE, \ | |
1230 | .this_id = ATA_SHT_THIS_ID, \ | |
1231 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, \ | |
1232 | .emulated = ATA_SHT_EMULATED, \ | |
1233 | .use_clustering = ATA_SHT_USE_CLUSTERING, \ | |
1234 | .proc_name = drv_name, \ | |
1235 | .slave_configure = ata_scsi_slave_config, \ | |
1236 | .slave_destroy = ata_scsi_slave_destroy, \ | |
45fabbb7 | 1237 | .bios_param = ata_std_bios_param, \ |
d8d9129e | 1238 | .unlock_native_capacity = ata_scsi_unlock_native_capacity, \ |
45fabbb7 | 1239 | .sdev_attrs = ata_common_sdev_attrs |
68d1d07b | 1240 | |
68d1d07b TH |
1241 | #define ATA_NCQ_SHT(drv_name) \ |
1242 | ATA_BASE_SHT(drv_name), \ | |
1243 | .change_queue_depth = ata_scsi_change_queue_depth | |
1244 | ||
071f44b1 TH |
1245 | /* |
1246 | * PMP helpers | |
1247 | */ | |
88fcd562 | 1248 | #ifdef CONFIG_SATA_PMP |
071f44b1 TH |
1249 | static inline bool sata_pmp_supported(struct ata_port *ap) |
1250 | { | |
1251 | return ap->flags & ATA_FLAG_PMP; | |
1252 | } | |
1253 | ||
1254 | static inline bool sata_pmp_attached(struct ata_port *ap) | |
1255 | { | |
1256 | return ap->nr_pmp_links != 0; | |
1257 | } | |
1258 | ||
1259 | static inline int ata_is_host_link(const struct ata_link *link) | |
1260 | { | |
b1c72916 | 1261 | return link == &link->ap->link || link == link->ap->slave_link; |
071f44b1 | 1262 | } |
88fcd562 TH |
1263 | #else /* CONFIG_SATA_PMP */ |
1264 | static inline bool sata_pmp_supported(struct ata_port *ap) | |
1265 | { | |
1266 | return false; | |
1267 | } | |
1268 | ||
1269 | static inline bool sata_pmp_attached(struct ata_port *ap) | |
1270 | { | |
1271 | return false; | |
1272 | } | |
1273 | ||
1274 | static inline int ata_is_host_link(const struct ata_link *link) | |
1275 | { | |
1276 | return 1; | |
1277 | } | |
1278 | #endif /* CONFIG_SATA_PMP */ | |
071f44b1 TH |
1279 | |
1280 | static inline int sata_srst_pmp(struct ata_link *link) | |
1281 | { | |
1282 | if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) | |
1283 | return SATA_PMP_CTRL_PORT; | |
1284 | return link->pmp; | |
1285 | } | |
1286 | ||
61440db6 TH |
1287 | /* |
1288 | * printk helpers | |
1289 | */ | |
b9075fa9 | 1290 | __printf(3, 4) |
a9a79dfe JP |
1291 | int ata_port_printk(const struct ata_port *ap, const char *level, |
1292 | const char *fmt, ...); | |
b9075fa9 | 1293 | __printf(3, 4) |
a9a79dfe JP |
1294 | int ata_link_printk(const struct ata_link *link, const char *level, |
1295 | const char *fmt, ...); | |
b9075fa9 | 1296 | __printf(3, 4) |
a9a79dfe JP |
1297 | int ata_dev_printk(const struct ata_device *dev, const char *level, |
1298 | const char *fmt, ...); | |
1299 | ||
1300 | #define ata_port_err(ap, fmt, ...) \ | |
1301 | ata_port_printk(ap, KERN_ERR, fmt, ##__VA_ARGS__) | |
1302 | #define ata_port_warn(ap, fmt, ...) \ | |
1303 | ata_port_printk(ap, KERN_WARNING, fmt, ##__VA_ARGS__) | |
1304 | #define ata_port_notice(ap, fmt, ...) \ | |
1305 | ata_port_printk(ap, KERN_NOTICE, fmt, ##__VA_ARGS__) | |
1306 | #define ata_port_info(ap, fmt, ...) \ | |
1307 | ata_port_printk(ap, KERN_INFO, fmt, ##__VA_ARGS__) | |
1308 | #define ata_port_dbg(ap, fmt, ...) \ | |
1309 | ata_port_printk(ap, KERN_DEBUG, fmt, ##__VA_ARGS__) | |
1310 | ||
1311 | #define ata_link_err(link, fmt, ...) \ | |
1312 | ata_link_printk(link, KERN_ERR, fmt, ##__VA_ARGS__) | |
1313 | #define ata_link_warn(link, fmt, ...) \ | |
1314 | ata_link_printk(link, KERN_WARNING, fmt, ##__VA_ARGS__) | |
1315 | #define ata_link_notice(link, fmt, ...) \ | |
1316 | ata_link_printk(link, KERN_NOTICE, fmt, ##__VA_ARGS__) | |
1317 | #define ata_link_info(link, fmt, ...) \ | |
1318 | ata_link_printk(link, KERN_INFO, fmt, ##__VA_ARGS__) | |
1319 | #define ata_link_dbg(link, fmt, ...) \ | |
1320 | ata_link_printk(link, KERN_DEBUG, fmt, ##__VA_ARGS__) | |
1321 | ||
1322 | #define ata_dev_err(dev, fmt, ...) \ | |
1323 | ata_dev_printk(dev, KERN_ERR, fmt, ##__VA_ARGS__) | |
1324 | #define ata_dev_warn(dev, fmt, ...) \ | |
1325 | ata_dev_printk(dev, KERN_WARNING, fmt, ##__VA_ARGS__) | |
1326 | #define ata_dev_notice(dev, fmt, ...) \ | |
1327 | ata_dev_printk(dev, KERN_NOTICE, fmt, ##__VA_ARGS__) | |
1328 | #define ata_dev_info(dev, fmt, ...) \ | |
1329 | ata_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__) | |
1330 | #define ata_dev_dbg(dev, fmt, ...) \ | |
1331 | ata_dev_printk(dev, KERN_DEBUG, fmt, ##__VA_ARGS__) | |
1da177e4 | 1332 | |
06296a1e JP |
1333 | void ata_print_version(const struct device *dev, const char *version); |
1334 | ||
f3e81b19 TH |
1335 | /* |
1336 | * ata_eh_info helpers | |
1337 | */ | |
b9075fa9 JP |
1338 | extern __printf(2, 3) |
1339 | void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); | |
1340 | extern __printf(2, 3) | |
1341 | void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...); | |
b64bbc39 | 1342 | extern void ata_ehi_clear_desc(struct ata_eh_info *ehi); |
f3e81b19 | 1343 | |
c0b6c037 TH |
1344 | static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi) |
1345 | { | |
b558eddd | 1346 | ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1; |
f8f1e1cc | 1347 | ehi->flags |= ATA_EHI_HOTPLUGGED; |
b558eddd | 1348 | ehi->action |= ATA_EH_RESET | ATA_EH_ENABLE_LINK; |
c0b6c037 TH |
1349 | ehi->err_mask |= AC_ERR_ATA_BUS; |
1350 | } | |
1351 | ||
cbcdd875 TH |
1352 | /* |
1353 | * port description helpers | |
1354 | */ | |
b9075fa9 JP |
1355 | extern __printf(2, 3) |
1356 | void ata_port_desc(struct ata_port *ap, const char *fmt, ...); | |
cbcdd875 TH |
1357 | #ifdef CONFIG_PCI |
1358 | extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, | |
1359 | const char *name); | |
1360 | #endif | |
1361 | ||
1da177e4 LT |
1362 | static inline unsigned int ata_tag_valid(unsigned int tag) |
1363 | { | |
1364 | return (tag < ATA_MAX_QUEUE) ? 1 : 0; | |
1365 | } | |
1366 | ||
2ab7db1f TH |
1367 | static inline unsigned int ata_tag_internal(unsigned int tag) |
1368 | { | |
83c063dd | 1369 | return tag == ATA_TAG_INTERNAL; |
2ab7db1f TH |
1370 | } |
1371 | ||
5806db22 TH |
1372 | /* |
1373 | * device helpers | |
1374 | */ | |
e1211e3f | 1375 | static inline unsigned int ata_class_enabled(unsigned int class) |
597afd21 | 1376 | { |
e0a71752 TH |
1377 | return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI || |
1378 | class == ATA_DEV_PMP || class == ATA_DEV_SEMB; | |
597afd21 TH |
1379 | } |
1380 | ||
e1211e3f | 1381 | static inline unsigned int ata_class_disabled(unsigned int class) |
1da177e4 | 1382 | { |
e0a71752 TH |
1383 | return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP || |
1384 | class == ATA_DEV_PMP_UNSUP || class == ATA_DEV_SEMB_UNSUP; | |
e1211e3f TH |
1385 | } |
1386 | ||
002c8054 TH |
1387 | static inline unsigned int ata_class_absent(unsigned int class) |
1388 | { | |
1389 | return !ata_class_enabled(class) && !ata_class_disabled(class); | |
1390 | } | |
1391 | ||
e1211e3f TH |
1392 | static inline unsigned int ata_dev_enabled(const struct ata_device *dev) |
1393 | { | |
1394 | return ata_class_enabled(dev->class); | |
1395 | } | |
1396 | ||
1397 | static inline unsigned int ata_dev_disabled(const struct ata_device *dev) | |
1398 | { | |
1399 | return ata_class_disabled(dev->class); | |
1da177e4 LT |
1400 | } |
1401 | ||
002c8054 TH |
1402 | static inline unsigned int ata_dev_absent(const struct ata_device *dev) |
1403 | { | |
1404 | return ata_class_absent(dev->class); | |
1405 | } | |
1406 | ||
5806db22 | 1407 | /* |
f58229f8 | 1408 | * link helpers |
5806db22 | 1409 | */ |
f58229f8 | 1410 | static inline int ata_link_max_devices(const struct ata_link *link) |
5806db22 | 1411 | { |
8989805d | 1412 | if (ata_is_host_link(link) && link->ap->flags & ATA_FLAG_SLAVE_POSS) |
5806db22 TH |
1413 | return 2; |
1414 | return 1; | |
1415 | } | |
1416 | ||
da917d69 TH |
1417 | static inline int ata_link_active(struct ata_link *link) |
1418 | { | |
1419 | return ata_tag_valid(link->active_tag) || link->sactive; | |
1420 | } | |
1421 | ||
1eca4365 TH |
1422 | /* |
1423 | * Iterators | |
1424 | * | |
1425 | * ATA_LITER_* constants are used to select link iteration mode and | |
1426 | * ATA_DITER_* device iteration mode. | |
1427 | * | |
1428 | * For a custom iteration directly using ata_{link|dev}_next(), if | |
1429 | * @link or @dev, respectively, is NULL, the first element is | |
1430 | * returned. @dev and @link can be any valid device or link and the | |
1431 | * next element according to the iteration mode will be returned. | |
1432 | * After the last element, NULL is returned. | |
1433 | */ | |
1434 | enum ata_link_iter_mode { | |
1435 | ATA_LITER_EDGE, /* if present, PMP links only; otherwise, | |
1436 | * host link. no slave link */ | |
1437 | ATA_LITER_HOST_FIRST, /* host link followed by PMP or slave links */ | |
1438 | ATA_LITER_PMP_FIRST, /* PMP links followed by host link, | |
1439 | * slave link still comes after host link */ | |
1440 | }; | |
1441 | ||
1442 | enum ata_dev_iter_mode { | |
1443 | ATA_DITER_ENABLED, | |
1444 | ATA_DITER_ENABLED_REVERSE, | |
1445 | ATA_DITER_ALL, | |
1446 | ATA_DITER_ALL_REVERSE, | |
1447 | }; | |
1448 | ||
1449 | extern struct ata_link *ata_link_next(struct ata_link *link, | |
1450 | struct ata_port *ap, | |
1451 | enum ata_link_iter_mode mode); | |
1452 | ||
1453 | extern struct ata_device *ata_dev_next(struct ata_device *dev, | |
1454 | struct ata_link *link, | |
1455 | enum ata_dev_iter_mode mode); | |
1456 | ||
1457 | /* | |
1458 | * Shortcut notation for iterations | |
1459 | * | |
1460 | * ata_for_each_link() iterates over each link of @ap according to | |
1461 | * @mode. @link points to the current link in the loop. @link is | |
1462 | * NULL after loop termination. ata_for_each_dev() works the same way | |
1463 | * except that it iterates over each device of @link. | |
1464 | * | |
1465 | * Note that the mode prefixes ATA_{L|D}ITER_ shouldn't need to be | |
1466 | * specified when using the following shorthand notations. Only the | |
1467 | * mode itself (EDGE, HOST_FIRST, ENABLED, etc...) should be | |
1468 | * specified. This not only increases brevity but also makes it | |
1469 | * impossible to use ATA_LITER_* for device iteration or vice-versa. | |
1470 | */ | |
1471 | #define ata_for_each_link(link, ap, mode) \ | |
1472 | for ((link) = ata_link_next(NULL, (ap), ATA_LITER_##mode); (link); \ | |
1473 | (link) = ata_link_next((link), (ap), ATA_LITER_##mode)) | |
1474 | ||
1475 | #define ata_for_each_dev(dev, link, mode) \ | |
1476 | for ((dev) = ata_dev_next(NULL, (link), ATA_DITER_##mode); (dev); \ | |
1477 | (dev) = ata_dev_next((dev), (link), ATA_DITER_##mode)) | |
5806db22 | 1478 | |
6d1245bf TH |
1479 | /** |
1480 | * ata_ncq_enabled - Test whether NCQ is enabled | |
1481 | * @dev: ATA device to test for | |
1482 | * | |
1483 | * LOCKING: | |
1484 | * spin_lock_irqsave(host lock) | |
1485 | * | |
1486 | * RETURNS: | |
1487 | * 1 if NCQ is enabled for @dev, 0 otherwise. | |
1488 | */ | |
1489 | static inline int ata_ncq_enabled(struct ata_device *dev) | |
1490 | { | |
1491 | return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF | | |
1492 | ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ; | |
1493 | } | |
0baab86b | 1494 | |
1da177e4 LT |
1495 | static inline void ata_qc_set_polling(struct ata_queued_cmd *qc) |
1496 | { | |
1497 | qc->tf.ctl |= ATA_NIEN; | |
1498 | } | |
1499 | ||
f69499f4 TH |
1500 | static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap, |
1501 | unsigned int tag) | |
1da177e4 LT |
1502 | { |
1503 | if (likely(ata_tag_valid(tag))) | |
1504 | return &ap->qcmd[tag]; | |
1505 | return NULL; | |
1506 | } | |
1507 | ||
f69499f4 TH |
1508 | static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap, |
1509 | unsigned int tag) | |
1510 | { | |
1511 | struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); | |
1512 | ||
1513 | if (unlikely(!qc) || !ap->ops->error_handler) | |
1514 | return qc; | |
1515 | ||
1516 | if ((qc->flags & (ATA_QCFLAG_ACTIVE | | |
1517 | ATA_QCFLAG_FAILED)) == ATA_QCFLAG_ACTIVE) | |
1518 | return qc; | |
1519 | ||
1520 | return NULL; | |
1521 | } | |
1522 | ||
aacda375 TH |
1523 | static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc) |
1524 | { | |
1525 | return qc->nbytes - min(qc->extrabytes, qc->nbytes); | |
1526 | } | |
1527 | ||
3373efd8 | 1528 | static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf) |
1da177e4 LT |
1529 | { |
1530 | memset(tf, 0, sizeof(*tf)); | |
1531 | ||
5fe7454a | 1532 | #ifdef CONFIG_ATA_SFF |
9af5c9c9 | 1533 | tf->ctl = dev->link->ap->ctl; |
5fe7454a TH |
1534 | #else |
1535 | tf->ctl = ATA_DEVCTL_OBS; | |
1536 | #endif | |
3373efd8 | 1537 | if (dev->devno == 0) |
1da177e4 LT |
1538 | tf->device = ATA_DEVICE_OBS; |
1539 | else | |
1540 | tf->device = ATA_DEVICE_OBS | ATA_DEV1; | |
1541 | } | |
1542 | ||
2c13b7ce JG |
1543 | static inline void ata_qc_reinit(struct ata_queued_cmd *qc) |
1544 | { | |
501e0c50 | 1545 | qc->dma_dir = DMA_NONE; |
ff2aeb1e | 1546 | qc->sg = NULL; |
2c13b7ce | 1547 | qc->flags = 0; |
87260216 JA |
1548 | qc->cursg = NULL; |
1549 | qc->cursg_ofs = 0; | |
aacda375 | 1550 | qc->nbytes = qc->extrabytes = qc->curbytes = 0; |
7a801184 | 1551 | qc->n_elem = 0; |
a22e2eb0 | 1552 | qc->err_mask = 0; |
5a5dbd18 | 1553 | qc->sect_size = ATA_SECT_SIZE; |
2c13b7ce | 1554 | |
3373efd8 | 1555 | ata_tf_init(qc->dev, &qc->tf); |
e61e0672 TH |
1556 | |
1557 | /* init result_tf such that it indicates normal completion */ | |
1558 | qc->result_tf.command = ATA_DRDY; | |
1559 | qc->result_tf.feature = 0; | |
2c13b7ce JG |
1560 | } |
1561 | ||
057ace5e | 1562 | static inline int ata_try_flush_cache(const struct ata_device *dev) |
1da177e4 LT |
1563 | { |
1564 | return ata_id_wcache_enabled(dev->id) || | |
1565 | ata_id_has_flush(dev->id) || | |
1566 | ata_id_has_flush_ext(dev->id); | |
1567 | } | |
1568 | ||
a7dac447 JG |
1569 | static inline unsigned int ac_err_mask(u8 status) |
1570 | { | |
3655d1d3 | 1571 | if (status & (ATA_BUSY | ATA_DRQ)) |
11a56d24 | 1572 | return AC_ERR_HSM; |
a7dac447 JG |
1573 | if (status & (ATA_ERR | ATA_DF)) |
1574 | return AC_ERR_DEV; | |
1575 | return 0; | |
1576 | } | |
1577 | ||
1578 | static inline unsigned int __ac_err_mask(u8 status) | |
1579 | { | |
1580 | unsigned int mask = ac_err_mask(status); | |
1581 | if (mask == 0) | |
1582 | return AC_ERR_OTHER; | |
1583 | return mask; | |
1584 | } | |
1585 | ||
35bb94b1 JG |
1586 | static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host) |
1587 | { | |
4911487a | 1588 | return *(struct ata_port **)&host->hostdata[0]; |
35bb94b1 JG |
1589 | } |
1590 | ||
78ab88f0 TH |
1591 | static inline int ata_check_ready(u8 status) |
1592 | { | |
005b1f74 JG |
1593 | if (!(status & ATA_BUSY)) |
1594 | return 1; | |
78ab88f0 TH |
1595 | |
1596 | /* 0xff indicates either no device or device not ready */ | |
1597 | if (status == 0xff) | |
1598 | return -ENODEV; | |
1599 | ||
005b1f74 | 1600 | return 0; |
78ab88f0 TH |
1601 | } |
1602 | ||
341c2c95 TH |
1603 | static inline unsigned long ata_deadline(unsigned long from_jiffies, |
1604 | unsigned long timeout_msecs) | |
1605 | { | |
1606 | return from_jiffies + msecs_to_jiffies(timeout_msecs); | |
1607 | } | |
1608 | ||
b15b3eba AC |
1609 | /* Don't open code these in drivers as there are traps. Firstly the range may |
1610 | change in future hardware and specs, secondly 0xFF means 'no DMA' but is | |
1611 | > UDMA_0. Dyma ddreigiau */ | |
1612 | ||
1613 | static inline int ata_using_mwdma(struct ata_device *adev) | |
1614 | { | |
1615 | if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4) | |
1616 | return 1; | |
1617 | return 0; | |
1618 | } | |
1619 | ||
1620 | static inline int ata_using_udma(struct ata_device *adev) | |
1621 | { | |
1622 | if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7) | |
1623 | return 1; | |
1624 | return 0; | |
1625 | } | |
1626 | ||
1627 | static inline int ata_dma_enabled(struct ata_device *adev) | |
1628 | { | |
1629 | return (adev->dma_mode == 0xFF ? 0 : 1); | |
1630 | } | |
48515f6c TH |
1631 | |
1632 | /************************************************************************** | |
1633 | * PMP - drivers/ata/libata-pmp.c | |
1634 | */ | |
88fcd562 TH |
1635 | #ifdef CONFIG_SATA_PMP |
1636 | ||
48515f6c TH |
1637 | extern const struct ata_port_operations sata_pmp_port_ops; |
1638 | ||
1639 | extern int sata_pmp_qc_defer_cmd_switch(struct ata_queued_cmd *qc); | |
1640 | extern void sata_pmp_error_handler(struct ata_port *ap); | |
1641 | ||
88fcd562 TH |
1642 | #else /* CONFIG_SATA_PMP */ |
1643 | ||
1644 | #define sata_pmp_port_ops sata_port_ops | |
1645 | #define sata_pmp_qc_defer_cmd_switch ata_std_qc_defer | |
1646 | #define sata_pmp_error_handler ata_std_error_handler | |
1647 | ||
1648 | #endif /* CONFIG_SATA_PMP */ | |
1649 | ||
48515f6c | 1650 | |
624d5c51 TH |
1651 | /************************************************************************** |
1652 | * SFF - drivers/ata/libata-sff.c | |
1653 | */ | |
127102ae TH |
1654 | #ifdef CONFIG_ATA_SFF |
1655 | ||
624d5c51 | 1656 | extern const struct ata_port_operations ata_sff_port_ops; |
871af121 | 1657 | extern const struct ata_port_operations ata_bmdma32_port_ops; |
624d5c51 TH |
1658 | |
1659 | /* PIO only, sg_tablesize and dma_boundary limits can be removed */ | |
1660 | #define ATA_PIO_SHT(drv_name) \ | |
1661 | ATA_BASE_SHT(drv_name), \ | |
1662 | .sg_tablesize = LIBATA_MAX_PRD, \ | |
1663 | .dma_boundary = ATA_DMA_BOUNDARY | |
1664 | ||
9363c382 TH |
1665 | extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device); |
1666 | extern u8 ata_sff_check_status(struct ata_port *ap); | |
a57c1bad AC |
1667 | extern void ata_sff_pause(struct ata_port *ap); |
1668 | extern void ata_sff_dma_pause(struct ata_port *ap); | |
9363c382 TH |
1669 | extern int ata_sff_busy_sleep(struct ata_port *ap, |
1670 | unsigned long timeout_pat, unsigned long timeout); | |
705e76be | 1671 | extern int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline); |
9363c382 TH |
1672 | extern void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); |
1673 | extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf); | |
1674 | extern void ata_sff_exec_command(struct ata_port *ap, | |
1675 | const struct ata_taskfile *tf); | |
1676 | extern unsigned int ata_sff_data_xfer(struct ata_device *dev, | |
624d5c51 | 1677 | unsigned char *buf, unsigned int buflen, int rw); |
871af121 AC |
1678 | extern unsigned int ata_sff_data_xfer32(struct ata_device *dev, |
1679 | unsigned char *buf, unsigned int buflen, int rw); | |
9363c382 | 1680 | extern unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev, |
624d5c51 | 1681 | unsigned char *buf, unsigned int buflen, int rw); |
e42a542b | 1682 | extern void ata_sff_irq_on(struct ata_port *ap); |
9363c382 TH |
1683 | extern void ata_sff_irq_clear(struct ata_port *ap); |
1684 | extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, | |
1685 | u8 status, int in_wq); | |
64b97594 VK |
1686 | extern void ata_sff_queue_work(struct work_struct *work); |
1687 | extern void ata_sff_queue_delayed_work(struct delayed_work *dwork, | |
1688 | unsigned long delay); | |
ea3c6450 | 1689 | extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay); |
9363c382 | 1690 | extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); |
22183bf5 | 1691 | extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); |
c3b28894 | 1692 | extern unsigned int ata_sff_port_intr(struct ata_port *ap, |
9363c382 TH |
1693 | struct ata_queued_cmd *qc); |
1694 | extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance); | |
c96f1732 | 1695 | extern void ata_sff_lost_interrupt(struct ata_port *ap); |
9363c382 TH |
1696 | extern void ata_sff_freeze(struct ata_port *ap); |
1697 | extern void ata_sff_thaw(struct ata_port *ap); | |
1698 | extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline); | |
1699 | extern unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, | |
1700 | u8 *r_err); | |
705e76be TH |
1701 | extern int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, |
1702 | unsigned long deadline); | |
9363c382 | 1703 | extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes, |
624d5c51 | 1704 | unsigned long deadline); |
9363c382 TH |
1705 | extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class, |
1706 | unsigned long deadline); | |
1707 | extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes); | |
3d47aa8e | 1708 | extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc); |
9363c382 | 1709 | extern void ata_sff_error_handler(struct ata_port *ap); |
9363c382 | 1710 | extern void ata_sff_std_ports(struct ata_ioports *ioaddr); |
624d5c51 | 1711 | #ifdef CONFIG_PCI |
9363c382 TH |
1712 | extern int ata_pci_sff_init_host(struct ata_host *host); |
1713 | extern int ata_pci_sff_prepare_host(struct pci_dev *pdev, | |
624d5c51 TH |
1714 | const struct ata_port_info * const * ppi, |
1715 | struct ata_host **r_host); | |
9363c382 | 1716 | extern int ata_pci_sff_activate_host(struct ata_host *host, |
624d5c51 TH |
1717 | irq_handler_t irq_handler, |
1718 | struct scsi_host_template *sht); | |
9363c382 | 1719 | extern int ata_pci_sff_init_one(struct pci_dev *pdev, |
16ea0fc9 AC |
1720 | const struct ata_port_info * const * ppi, |
1721 | struct scsi_host_template *sht, void *host_priv, int hflags); | |
624d5c51 TH |
1722 | #endif /* CONFIG_PCI */ |
1723 | ||
9a7780c9 TH |
1724 | #ifdef CONFIG_ATA_BMDMA |
1725 | ||
1726 | extern const struct ata_port_operations ata_bmdma_port_ops; | |
1727 | ||
1728 | #define ATA_BMDMA_SHT(drv_name) \ | |
1729 | ATA_BASE_SHT(drv_name), \ | |
1730 | .sg_tablesize = LIBATA_MAX_PRD, \ | |
1731 | .dma_boundary = ATA_DMA_BOUNDARY | |
1732 | ||
f47451c4 | 1733 | extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc); |
360ff783 | 1734 | extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc); |
f47451c4 | 1735 | extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); |
c3b28894 TH |
1736 | extern unsigned int ata_bmdma_port_intr(struct ata_port *ap, |
1737 | struct ata_queued_cmd *qc); | |
1738 | extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance); | |
fe06e5f9 TH |
1739 | extern void ata_bmdma_error_handler(struct ata_port *ap); |
1740 | extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); | |
37f65b8b | 1741 | extern void ata_bmdma_irq_clear(struct ata_port *ap); |
9f2f7210 TH |
1742 | extern void ata_bmdma_setup(struct ata_queued_cmd *qc); |
1743 | extern void ata_bmdma_start(struct ata_queued_cmd *qc); | |
1744 | extern void ata_bmdma_stop(struct ata_queued_cmd *qc); | |
1745 | extern u8 ata_bmdma_status(struct ata_port *ap); | |
c7087652 TH |
1746 | extern int ata_bmdma_port_start(struct ata_port *ap); |
1747 | extern int ata_bmdma_port_start32(struct ata_port *ap); | |
9f2f7210 TH |
1748 | |
1749 | #ifdef CONFIG_PCI | |
1750 | extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev); | |
c7087652 | 1751 | extern void ata_pci_bmdma_init(struct ata_host *host); |
1c5afdf7 TH |
1752 | extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev, |
1753 | const struct ata_port_info * const * ppi, | |
1754 | struct ata_host **r_host); | |
1755 | extern int ata_pci_bmdma_init_one(struct pci_dev *pdev, | |
1756 | const struct ata_port_info * const * ppi, | |
1757 | struct scsi_host_template *sht, | |
1758 | void *host_priv, int hflags); | |
9f2f7210 | 1759 | #endif /* CONFIG_PCI */ |
9a7780c9 | 1760 | #endif /* CONFIG_ATA_BMDMA */ |
9f2f7210 | 1761 | |
624d5c51 | 1762 | /** |
9363c382 | 1763 | * ata_sff_busy_wait - Wait for a port status register |
624d5c51 TH |
1764 | * @ap: Port to wait for. |
1765 | * @bits: bits that must be clear | |
1766 | * @max: number of 10uS waits to perform | |
1767 | * | |
1768 | * Waits up to max*10 microseconds for the selected bits in the port's | |
1769 | * status register to be cleared. | |
1770 | * Returns final value of status register. | |
1771 | * | |
1772 | * LOCKING: | |
1773 | * Inherited from caller. | |
1774 | */ | |
9363c382 TH |
1775 | static inline u8 ata_sff_busy_wait(struct ata_port *ap, unsigned int bits, |
1776 | unsigned int max) | |
624d5c51 TH |
1777 | { |
1778 | u8 status; | |
1779 | ||
1780 | do { | |
1781 | udelay(10); | |
5682ed33 | 1782 | status = ap->ops->sff_check_status(ap); |
624d5c51 TH |
1783 | max--; |
1784 | } while (status != 0xff && (status & bits) && (max > 0)); | |
1785 | ||
1786 | return status; | |
1787 | } | |
1788 | ||
1789 | /** | |
1790 | * ata_wait_idle - Wait for a port to be idle. | |
1791 | * @ap: Port to wait for. | |
1792 | * | |
1793 | * Waits up to 10ms for port's BUSY and DRQ signals to clear. | |
1794 | * Returns final value of status register. | |
1795 | * | |
1796 | * LOCKING: | |
1797 | * Inherited from caller. | |
1798 | */ | |
1799 | static inline u8 ata_wait_idle(struct ata_port *ap) | |
1800 | { | |
9363c382 | 1801 | u8 status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
624d5c51 TH |
1802 | |
1803 | #ifdef ATA_DEBUG | |
1804 | if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) | |
1805 | ata_port_printk(ap, KERN_DEBUG, "abnormal Status 0x%X\n", | |
1806 | status); | |
1807 | #endif | |
1808 | ||
1809 | return status; | |
1810 | } | |
127102ae | 1811 | #endif /* CONFIG_ATA_SFF */ |
624d5c51 | 1812 | |
1da177e4 | 1813 | #endif /* __LINUX_LIBATA_H__ */ |