1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _ATA_COMMON_H
28 #define	_ATA_COMMON_H
29 
30 #ifdef	__cplusplus
31 extern "C" {
32 #endif
33 
34 #include <sys/varargs.h>
35 
36 #include <sys/scsi/scsi.h>
37 #include <sys/dktp/dadkio.h>
38 #include <sys/dktp/dadev.h>
39 #include <sys/dkio.h>
40 #include <sys/dktp/tgdk.h>
41 
42 #include <sys/ddi.h>
43 #include <sys/sunddi.h>
44 
45 #include "ghd.h"
46 
47 #include "pciide.h"
48 #include "ata_cmd.h"
49 #include "ata_fsm.h"
50 #include "ata_debug.h"
51 
52 
53 /*
54  * device types
55  */
56 #define	ATA_DEV_NONE	0
57 #define	ATA_DEV_DISK	1
58 #define	ATA_DEV_ATAPI	2
59 
60 /*
61  * Largest sector allowed in 28 bit mode
62  */
63 #define	MAX_28BIT_CAPACITY	0xfffffff
64 
65 /*
66  * Largest sector count allowed for device firmware file in one command.
67  */
68 #define	MAX_FWFILE_SIZE_ONECMD	0xffff
69 
70 /*
71  * ata-options property configuration bits
72  */
73 
74 #define	ATA_OPTIONS_DMA		0x01
75 
76 #define	ATAPRT(fmt)	ghd_err fmt
77 
78 /* ad_flags (per-drive) */
79 
80 #define	AD_ATAPI		0x01	/* is an ATAPI drive */
81 #define	AD_DISK			0x02
82 #define	AD_MUTEX_INIT		0x04
83 #define	AD_NO_CDB_INTR		0x20
84 #define	AD_1SECTOR		0x40
85 #define	AD_INT13LBA		0x80	/* supports LBA at Int13 interface */
86 #define	AD_NORVRT		0x100	/* block revert-to-defaults */
87 #define	AD_EXT48		0x200	/* 48 bit (extended) LBA */
88 #define	ATAPIDRV(X)  ((X)->ad_flags & AD_ATAPI)
89 
90 
91 /* max targets and luns */
92 
93 #define	ATA_MAXTARG	2
94 #define	ATA_MAXLUN	16
95 
96 /*
97  * PCI-IDE Bus Mastering Scatter/Gather list size
98  */
99 #define	ATA_DMA_NSEGS	17	/* enough for at least 64K */
100 
101 /*
102  * Controller port address defaults
103  */
104 #define	ATA_BASE0	0x1f0
105 #define	ATA_BASE1	0x170
106 
107 /*
108  * port offsets from base address ioaddr1
109  */
110 #define	AT_DATA		0x00	/* data register 			*/
111 #define	AT_ERROR	0x01	/* error register (read)		*/
112 #define	AT_FEATURE	0x01	/* features (write)			*/
113 #define	AT_COUNT	0x02    /* sector count 			*/
114 #define	AT_SECT		0x03	/* sector number 			*/
115 #define	AT_LCYL		0x04	/* cylinder low byte 			*/
116 #define	AT_HCYL		0x05	/* cylinder high byte 			*/
117 #define	AT_DRVHD	0x06    /* drive/head register 			*/
118 #define	AT_STATUS	0x07	/* status/command register 		*/
119 #define	AT_CMD		0x07	/* status/command register 		*/
120 
121 /*
122  * port offsets from base address ioaddr2
123  */
124 #define	AT_ALTSTATUS	0x00	/* alternate status (read)		*/
125 #define	AT_DEVCTL	0x00	/* device control (write)		*/
126 
127 /*	Device control register						*/
128 #define	ATDC_NIEN    	0x02    /* disable interrupts 			*/
129 #define	ATDC_SRST	0x04	/* controller reset			*/
130 #define	ATDC_D3		0x08	/* Mysterious bit, must be set  	*/
131 /*
132  * ATA-6 spec
133  * In 48-bit addressing, reading the LBA location and count
134  * registers when the high-order bit is set reads the "previous
135  * content" (LBA bits 47:24, count bits 15:8) instead of the
136  * "most recent" values (LBA bits 23:0, count bits 7:0).
137  */
138 #define	ATDC_HOB	0x80	/* High order bit			*/
139 
140 /*
141  * Status bits from AT_STATUS register
142  */
143 #define	ATS_BSY		0x80    /* controller busy 			*/
144 #define	ATS_DRDY	0x40    /* drive ready 				*/
145 #define	ATS_DF		0x20    /* device fault				*/
146 #define	ATS_DSC    	0x10    /* seek operation complete 		*/
147 #define	ATS_DRQ		0x08	/* data request 			*/
148 #define	ATS_CORR	0x04    /* ECC correction applied 		*/
149 #define	ATS_IDX		0x02    /* disk revolution index 		*/
150 #define	ATS_ERR		0x01    /* error flag 				*/
151 
152 /*
153  * Status bits from AT_ERROR register
154  */
155 #define	ATE_BBK_ICRC	0x80	/* bad block detected in ATA-1		*/
156 				/* ICRC error in ATA-4 and newer	*/
157 #define	ATE_UNC		0x40	/* uncorrectable data error		*/
158 #define	ATE_MC		0x20    /* Media change				*/
159 #define	ATE_IDNF	0x10    /* ID not found				*/
160 #define	ATE_MCR		0x08	/* media change request			*/
161 #define	ATE_ABORT	0x04    /* aborted command			*/
162 #define	ATE_TKONF	0x02    /* track 0 not found			*/
163 #define	ATE_AMNF	0x01    /* address mark not found		*/
164 
165 #define	ATE_NM		0x02	/* no media				*/
166 
167 /*
168  * Drive selectors for AT_DRVHD register
169  */
170 #define	ATDH_LBA	0x40	/* addressing in LBA mode not chs 	*/
171 #define	ATDH_DRIVE0	0xa0    /* or into AT_DRVHD to select drive 0 	*/
172 #define	ATDH_DRIVE1	0xb0    /* or into AT_DRVHD to select drive 1 	*/
173 
174 /*
175  * Feature register bits
176  */
177 #define	ATF_ATAPI_DMA	0x01	/* ATAPI DMA enable bit */
178 #define	ATF_XFRMOD_MDMA	0x20	/* Multi-Word DMA mode */
179 #define	ATF_XFRMOD_UDMA	0x40	/* Ultra DMA mode	*/
180 #define	ATACM_UDMA_SEL(id)	(((id)->ai_ultradma >> 8) & 0x7f)
181 
182 /*
183  * Set feature register definitions.
184  */
185 #define	ATSF_SET_XFRMOD	0X03	/* Set transfer mode			  */
186 #define	ATSF_DIS_REVPOD	0x66	/* Disable reverting to power on defaults */
187 #define	ATSF_ENA_REVPOD	0xcc	/* Enable reverting to power on defaults  */
188 
189 /*
190  * common bits and options for set features (ATC_SET_FEAT)
191  */
192 #define	FC_WRITE_CACHE_ON	0x02
193 #define	FC_WRITE_CACHE_OFF	0x82
194 
195 /* Test which version of ATA is supported */
196 #define	IS_ATA_VERSION_SUPPORTED(idp, n) \
197 	((idp->ai_majorversion != 0xffff) && \
198 	(idp->ai_majorversion & (1<<n)))
199 
200 /* Test if supported version >= ATA-n */
201 #define	IS_ATA_VERSION_GE(idp, n) \
202 	((idp->ai_majorversion != 0xffff) && \
203 	(idp->ai_majorversion != 0) && \
204 	(idp->ai_majorversion >= (1<<n)))
205 
206 /* Test whether a device is a CD drive */
207 #define	IS_CDROM(dp) \
208 		((dp->ad_flags & AD_ATAPI) && \
209 		    ((dp->ad_id.ai_config >> 8) & DTYPE_MASK) == \
210 		    DTYPE_RODIRECT)
211 
212 /*  macros from old common hba code */
213 
214 #define	ATA_INTPROP(devi, pname, pval, plen) \
215 	(ddi_prop_op(DDI_DEV_T_ANY, (devi), PROP_LEN_AND_VAL_BUF, \
216 		DDI_PROP_DONTPASS, (pname), (caddr_t)(pval), (plen)))
217 
218 #define	ATA_LONGPROP(devi, pname, pval, plen) \
219 	(ddi_getlongprop(DDI_DEV_T_ANY, (devi), DDI_PROP_DONTPASS, \
220 		(pname), (caddr_t)(pval), (plen)))
221 
222 /*
223  *
224  * per-controller soft-state data structure
225  *
226  */
227 
228 #define	CTL2DRV(cp, t, l)	(cp->ac_drvp[t][l])
229 
230 typedef struct ata_ctl {
231 
232 	dev_info_t	*ac_dip;
233 	uint_t		 ac_flags;
234 	uint_t		 ac_timing_flags;
235 	struct ata_drv	*ac_drvp[ATA_MAXTARG][ATA_MAXLUN];
236 	int		 ac_max_transfer; /* max transfer in sectors */
237 	uint_t		 ac_standby_time; /* timer value seconds */
238 
239 	ccc_t		 ac_ccc;	  /* for GHD module */
240 	struct ata_drv	*ac_active_drvp;  /* active drive, if any */
241 	struct ata_pkt	*ac_active_pktp;  /* active packet, if any */
242 	uchar_t		 ac_state;
243 
244 	scsi_hba_tran_t *ac_atapi_tran;	  /* for atapi module */
245 
246 	/*
247 	 * port addresses associated with ioaddr1
248 	 */
249 	ddi_acc_handle_t ac_iohandle1;	  /* DDI I/O handle */
250 	caddr_t		 ac_ioaddr1;
251 	ushort_t	*ac_data;	  /* data register 		*/
252 	uchar_t		*ac_error;	  /* error register (read)	*/
253 	uchar_t		*ac_feature;	  /* features (write)		*/
254 	uchar_t		*ac_count;	  /* sector count 		*/
255 	uchar_t		*ac_sect;	  /* sector number 		*/
256 	uchar_t		*ac_lcyl;	  /* cylinder low byte 		*/
257 	uchar_t		*ac_hcyl;	  /* cylinder high byte 	*/
258 	uchar_t		*ac_drvhd;	  /* drive/head register 	*/
259 	uchar_t		*ac_status;	  /* status/command register 	*/
260 	uchar_t		*ac_cmd;	  /* status/command register 	*/
261 
262 	/*
263 	 * port addresses associated with ioaddr2
264 	 */
265 	ddi_acc_handle_t ac_iohandle2;	  /* DDI I/O handle		*/
266 	caddr_t		 ac_ioaddr2;
267 	uchar_t		*ac_altstatus;	  /* alternate status (read)	*/
268 	uchar_t		*ac_devctl;	  /* device control (write)	*/
269 
270 	/*
271 	 * handle and port addresss for PCI-IDE Bus Master controller
272 	 */
273 	ddi_acc_handle_t ac_bmhandle;	  /* DDI I/O handle		*/
274 	caddr_t		 ac_bmaddr;	  /* base addr of Bus Master Regs */
275 	uchar_t		 ac_pciide;	  /* PCI-IDE device */
276 	uchar_t		 ac_pciide_bm;	  /* Bus Mastering PCI-IDE device */
277 
278 	/*
279 	 * Scatter/Gather list for PCI-IDE Bus Mastering controllers
280 	 */
281 	caddr_t		 ac_sg_list;	  /* virtual addr of S/G list */
282 	paddr_t		 ac_sg_paddr;	  /* phys addr of S/G list */
283 	ddi_acc_handle_t ac_sg_acc_handle;
284 	ddi_dma_handle_t ac_sg_handle;
285 
286 	/*
287 	 * data for managing ARQ on ATAPI devices
288 	 */
289 	struct ata_pkt	*ac_arq_pktp;	  /* pkt for performing ATAPI ARQ */
290 	struct ata_pkt	*ac_fault_pktp;	  /* pkt that caused ARQ */
291 	uchar_t		 ac_arq_cdb[6];
292 
293 	/*
294 	 * Power Management
295 	 */
296 	int		ac_pm_support;
297 	int		ac_pm_level;
298 } ata_ctl_t;
299 
300 /* ac_flags (per-controller) */
301 
302 #define	AC_GHD_INIT			0x02
303 #define	AC_ATAPI_INIT			0x04
304 #define	AC_DISK_INIT			0x08
305 #define	AC_ATTACHED			0x10
306 #define	AC_SCSI_HBA_TRAN_ALLOC		0x1000
307 #define	AC_SCSI_HBA_ATTACH		0x2000
308 
309 #define	AC_BMSTATREG_PIO_BROKEN		0x80000000
310 
311 /*
312  * Bug 1256489:
313  *
314  * If AC_BSY_WAIT needs to be set  for laptops that do
315  * suspend/resume but do not correctly wait for the busy bit to
316  * drop after a resume.
317  */
318 
319 /* ac_timing_flags (per-controller) */
320 #define	AC_BSY_WAIT	0x1	/* tweak timing in ata_start & atapi_start */
321 
322 
323 
324 /* Identify drive data */
325 struct ata_id {
326 /*  					WORD				*/
327 /* 					OFFSET COMMENT			*/
328 	ushort_t  ai_config;	  /*   0  general configuration bits 	*/
329 	ushort_t  ai_fixcyls;	  /*   1  # of fixed cylinders		*/
330 	ushort_t  ai_resv0;	  /*   2  # reserved			*/
331 	ushort_t  ai_heads;	  /*   3  # of heads			*/
332 	ushort_t  ai_trksiz;	  /*   4  # of unformatted bytes/track 	*/
333 	ushort_t  ai_secsiz;	  /*   5  # of unformatted bytes/sector	*/
334 	ushort_t  ai_sectors;	  /*   6  # of sectors/track		*/
335 	ushort_t  ai_resv1[3];	  /*   7  "Vendor Unique"		*/
336 	char	ai_drvser[20];	  /*  10  Serial number			*/
337 	ushort_t ai_buftype;	  /*  20  Buffer type			*/
338 	ushort_t ai_bufsz;	  /*  21  Buffer size in 512 byte incr  */
339 	ushort_t ai_ecc;	  /*  22  # of ecc bytes avail on rd/wr */
340 	char	ai_fw[8];	  /*  23  Firmware revision		*/
341 	char	ai_model[40];	  /*  27  Model #			*/
342 	ushort_t ai_mult1;	  /*  47  Multiple command flags	*/
343 	ushort_t ai_dwcap;	  /*  48  Doubleword capabilities	*/
344 	ushort_t ai_cap;	  /*  49  Capabilities			*/
345 	ushort_t ai_resv2;	  /*  50  Reserved			*/
346 	ushort_t ai_piomode;	  /*  51  PIO timing mode		*/
347 	ushort_t ai_dmamode;	  /*  52  DMA timing mode		*/
348 	ushort_t ai_validinfo;	  /*  53  bit0: wds 54-58, bit1: 64-70	*/
349 	ushort_t ai_curcyls;	  /*  54  # of current cylinders	*/
350 	ushort_t ai_curheads;	  /*  55  # of current heads		*/
351 	ushort_t ai_cursectrk;	  /*  56  # of current sectors/track	*/
352 	ushort_t ai_cursccp[2];	  /*  57  current sectors capacity	*/
353 	ushort_t ai_mult2;	  /*  59  multiple sectors info		*/
354 	ushort_t ai_addrsec[2];	  /*  60  LBA only: no of addr secs	*/
355 	ushort_t ai_sworddma;	  /*  62  single word dma modes		*/
356 	ushort_t ai_dworddma;	  /*  63  double word dma modes		*/
357 	ushort_t ai_advpiomode;	  /*  64  advanced PIO modes supported	*/
358 	ushort_t ai_minmwdma;	  /*  65  min multi-word dma cycle info	*/
359 	ushort_t ai_recmwdma;	  /*  66  rec multi-word dma cycle info	*/
360 	ushort_t ai_minpio;	  /*  67  min PIO cycle info		*/
361 	ushort_t ai_minpioflow;	  /*  68  min PIO cycle info w/flow ctl */
362 	ushort_t ai_resv3[2];	  /* 69,70 reserved			*/
363 	ushort_t ai_resv4[4];	  /* 71-74 reserved			*/
364 	ushort_t ai_qdepth;	  /*  75  queue depth			*/
365 	ushort_t ai_resv5[4];	  /* 76-79 reserved			*/
366 	ushort_t ai_majorversion; /*  80  major versions supported	*/
367 	ushort_t ai_minorversion; /*  81  minor version number supported */
368 	ushort_t ai_cmdset82;	  /*  82  command set supported		*/
369 	ushort_t ai_cmdset83;	  /*  83  more command sets supported	*/
370 	ushort_t ai_cmdset84;	  /*  84  more command sets supported	*/
371 	ushort_t ai_features85;	  /*  85 enabled features		*/
372 	ushort_t ai_features86;	  /*  86 enabled features		*/
373 	ushort_t ai_features87;	  /*  87 enabled features		*/
374 	ushort_t ai_ultradma;	  /*  88 Ultra DMA mode			*/
375 	ushort_t ai_erasetime;	  /*  89 security erase time		*/
376 	ushort_t ai_erasetimex;	  /*  90 enhanced security erase time	*/
377 	ushort_t ai_padding1[9];  /* pad through 99			*/
378 	ushort_t ai_addrsecxt[4]; /* 100 extended max LBA sector	*/
379 	ushort_t ai_padding2[22]; /* pad to 126				*/
380 	ushort_t ai_lastlun;	  /* 126 last LUN, as per SFF-8070i	*/
381 	ushort_t ai_resv6;	  /* 127 reserved			*/
382 	ushort_t ai_securestatus; /* 128 security status		*/
383 	ushort_t ai_vendor[31];	  /* 129-159 vendor specific		*/
384 	ushort_t ai_padding3[16]; /* 160 pad to 176			*/
385 	ushort_t ai_curmedser[30]; /* 176-205 current media serial number */
386 	ushort_t ai_padding4[49]; /* 206 pad to 255			*/
387 	ushort_t ai_integrity;	  /* 255 integrity word			*/
388 };
389 
390 /* Identify Drive: general config bits  - word 0 */
391 
392 #define	ATA_ID_REM_DRV  	0x80
393 #define	ATA_ID_COMPACT_FLASH 	0x848a
394 #define	ATA_ID_CF_TO_ATA 	0x040a
395 #define	ATA_ID_INCMPT		0x0004
396 
397 /* Identify Drive: common capability bits - word 49 */
398 
399 #define	ATAC_DMA_SUPPORT	0x0100
400 #define	ATAC_LBA_SUPPORT	0x0200
401 #define	ATAC_IORDY_DISABLE	0x0400
402 #define	ATAC_IORDY_SUPPORT	0x0800
403 #define	ATAC_RESERVED_IDPKT	0x1000	/* rsrvd for identify pkt dev */
404 #define	ATAC_STANDBYTIMER	0x2000
405 #define	ATAC_ATA_TYPE_MASK	0x8001
406 #define	ATAC_ATA_TYPE		0x0000
407 #define	ATAC_ATAPI_TYPE_MASK	0xc000
408 #define	ATAC_ATAPI_TYPE		0x8000
409 
410 /* Identify Driver ai_validinfo (word 53) */
411 
412 #define	ATAC_VALIDINFO_83	0x0004	/* word 83 supported fields valid */
413 #define	ATAC_VALIDINFO_70_64	0x0002	/* word 70:64 sup. fields valid */
414 
415 /* Identify Drive: ai_dworddma (word 63) */
416 
417 #define	ATAC_MDMA_SUP_MASK	0x0007	/* Multiword DMA supported */
418 #define	ATAC_MDMA_SEL_MASK	0x0700	/* Multiword DMA selected */
419 #define	ATAC_MDMA_2_SEL		0x0400	/* Multiword DMA mode 2 selected */
420 #define	ATAC_MDMA_1_SEL		0x0200	/* Multiword DMA mode 1 selected */
421 #define	ATAC_MDMA_0_SEL		0x0100	/* Multiword DMA mode 0 selected */
422 #define	ATAC_MDMA_2_SUP		0x0004	/* Multiword DMA mode 2 supported */
423 #define	ATAC_MDMA_1_SUP		0x0002	/* Multiword DMA mode 1 supported */
424 #define	ATAC_MDMA_0_SUP		0x0001	/* Multiword DMA mode 0 supported */
425 
426 /* Identify Drive: ai_advpiomode (word 64) */
427 
428 #define	ATAC_ADVPIO_4_SUP	0x0002	/* PIO mode 4 supported */
429 #define	ATAC_ADVPIO_3_SUP	0x0001	/* PIO mode 3 supported */
430 #define	ATAC_ADVPIO_SERIAL	0x0003	/* Serial interface */
431 
432 /* Identify Drive: ai_majorversion (word 80) */
433 
434 #define	ATAC_MAJVER_8		0x0100	/* ATA/ATAPI-8 version supported */
435 #define	ATAC_MAJVER_6		0x0040	/* ATA/ATAPI-6 version supported */
436 #define	ATAC_MAJVER_4		0x0010	/* ATA/ATAPI-4 version supported */
437 
438 /* Identify Drive: command set supported/enabled bits - words 83 and 86 */
439 
440 #define	ATACS_EXT48		0x0400	/* 48 bit address feature */
441 
442 /* Identify Drive: ai_features85 (word 85) */
443 #define	ATAC_FEATURES85_WCE	0x0020	/* write cache enabled */
444 
445 /* Identify Drive: ai_ultradma (word 88) */
446 #define	ATAC_UDMA_SUP_MASK	0x007f	/* UDMA modes supported */
447 #define	ATAC_UDMA_SEL_MASK	0x7f00	/* UDMA modes selected */
448 
449 
450 /* per-drive data struct */
451 
452 typedef struct ata_drv {
453 	ata_ctl_t		*ad_ctlp; 	/* pointer back to ctlr */
454 	struct ata_id		ad_id;  	/* IDENTIFY DRIVE data */
455 
456 	uint_t			ad_flags;
457 	uchar_t			ad_pciide_dma;	/* PCIIDE DMA supported */
458 	uchar_t			ad_targ;	/* target */
459 	uchar_t			ad_lun;		/* lun */
460 	uchar_t			ad_drive_bits;
461 
462 	/* Used by atapi side only */
463 
464 	uchar_t			ad_state;	/* state of ATAPI FSM */
465 	uchar_t			ad_cdb_len;	/* Size of ATAPI CDBs */
466 
467 	uchar_t			ad_bogus_drq;
468 	uchar_t			ad_nec_bad_status;
469 
470 	/* Used by disk side only */
471 
472 	struct scsi_device	*ad_device;
473 	struct scsi_inquiry	ad_inquiry;
474 	struct ctl_obj		ad_ctl_obj;
475 	uchar_t			ad_rd_cmd;
476 	uchar_t			ad_wr_cmd;
477 	ushort_t		ad_acyl;
478 
479 	/*
480 	 * Geometry note: The following three values are the geometry
481 	 * that the driver will use.  They may differ from the
482 	 * geometry reported by the controller and/or BIOS.  See note
483 	 * on ata_fix_large_disk_geometry in ata_disk.c for more
484 	 * details.
485 	 */
486 	uint32_t		ad_drvrcyl;	/* number of cyls */
487 	uint32_t		ad_drvrhd;	/* number of heads */
488 	uint32_t		ad_drvrsec;	/* number of sectors */
489 	ushort_t		ad_phhd;	/* number of phys heads */
490 	ushort_t		ad_phsec;	/* number of phys sectors */
491 	short			ad_block_factor;
492 	short			ad_bytes_per_block;
493 
494 	/*
495 	 * Support for 48-bit LBA (ATA-6)
496 	 */
497 	uint64_t		ad_capacity;	/* Total sectors on disk */
498 
499 	/*
500 	 * save/restore the DMA mode for suspend/resume
501 	 */
502 	ushort_t		ad_dma_cap;
503 	ushort_t		ad_dma_mode;
504 } ata_drv_t;
505 
506 /* values for ad_dma_cap */
507 #define	ATA_DMA_ULTRAMODE	0x1
508 #define	ATA_DMA_MWORDMODE	0x2
509 
510 typedef	struct	ata_tgt {
511 	ata_drv_t	*at_drvp;
512 	int		 at_arq;
513 	ulong_t		 at_total_sectors;
514 	ddi_dma_attr_t	 at_dma_attr;
515 } ata_tgt_t;
516 
517 /* values for ad_pciide_dma */
518 #define	ATA_DMA_OFF		0x0
519 #define	ATA_DMA_ON		0x1
520 #define	ATA_DMA_UNINITIALIZED	0x2
521 
522 /*
523  * (ata_pkt_t *) to (gcmd_t *)
524  */
525 #define	APKT2GCMD(apktp)	(apktp->ap_gcmdp)
526 
527 /*
528  * (gcmd_t *) to (ata_pkt_t *)
529  */
530 #define	GCMD2APKT(gcmdp)	((ata_pkt_t *)gcmdp->cmd_private)
531 
532 /*
533  * (gtgt_t *) to (ata_ctl_t *)
534  */
535 #define	GTGTP2ATAP(gtgtp)	((ata_ctl_t *)GTGTP2HBA(gtgtp))
536 
537 /*
538  * (gtgt_t *) to (ata_tgt_t *)
539  */
540 #define	GTGTP2ATATGTP(gtgtp)	((ata_tgt_t *)GTGTP2TARGET(gtgtp))
541 
542 /*
543  * (gtgt_t *) to (ata_drv_t *)
544  */
545 #define	GTGTP2ATADRVP(gtgtp)	(GTGTP2ATATGTP(gtgtp)->at_drvp)
546 
547 /*
548  * (gcmd_t *) to (ata_tgt_t *)
549  */
550 #define	GCMD2TGT(gcmdp)		GTGTP2ATATGTP(GCMDP2GTGTP(gcmdp))
551 
552 /*
553  * (gcmd_t *) to (ata_drv_t *)
554  */
555 #define	GCMD2DRV(gcmdp)		GTGTP2ATADRVP(GCMDP2GTGTP(gcmdp))
556 
557 /*
558  * (ata_pkt_t *) to (ata_drv_t *)
559  */
560 #define	APKT2DRV(apktp)		GCMD2DRV(APKT2GCMD(apktp))
561 
562 
563 /*
564  * (struct hba_tran *) to (ata_ctl_t *)
565  */
566 #define	TRAN2ATAP(tranp) 	((ata_ctl_t *)TRAN2HBA(tranp))
567 
568 
569 /*
570  * ata common packet structure
571  */
572 typedef struct ata_pkt {
573 
574 	gcmd_t		*ap_gcmdp;	/* GHD command struct */
575 
576 	uint_t		ap_flags;	/* packet flags */
577 
578 	caddr_t		ap_baddr;	/* I/O buffer base address */
579 	size_t		ap_boffset;	/* current offset into I/O buffer */
580 	size_t		ap_bcount;	/* # bytes in this request */
581 
582 	caddr_t		ap_v_addr;	/* I/O buffer address */
583 	size_t		ap_resid;	/* # bytes left to read/write */
584 
585 	uchar_t		ap_pciide_dma;	/* This pkt uses DMA transfer mode */
586 	prde_t		ap_sg_list[ATA_DMA_NSEGS]; /* Scatter/Gather list */
587 	int		ap_sg_cnt;	/* number of entries in S/G list */
588 
589 	/* command, starting sector number, sector count */
590 
591 	daddr_t		ap_startsec;	/* starting sector number */
592 	ushort_t	ap_count;	/* sector count */
593 	uchar_t		ap_sec;
594 	uchar_t		ap_lwcyl;
595 	uchar_t		ap_hicyl;
596 	uchar_t		ap_hd;
597 	uchar_t		ap_cmd;
598 
599 	/* saved status and error registers for error case */
600 
601 	uchar_t		ap_status;
602 	uchar_t		ap_error;
603 
604 	/* disk/atapi callback routines */
605 
606 	int		(*ap_start)(ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp,
607 				struct ata_pkt *ata_pktp);
608 	int		(*ap_intr)(ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp,
609 				struct ata_pkt *ata_pktp);
610 	void		(*ap_complete)(ata_drv_t *ata_drvp,
611 				struct ata_pkt *ata_pktp, int do_callback);
612 
613 	/* Used by disk side */
614 
615 	char		ap_cdb;		/* disk command */
616 	char		ap_scb;		/* status after disk cmd */
617 	uint_t		ap_bytes_per_block; /* blk mode factor */
618 	uint_t		ap_wrt_count;	/* size of last write */
619 	caddr_t		ap_v_addr_sav;	/* Original I/O buffer address. */
620 	size_t		ap_resid_sav;	/* Original # of bytes */
621 					/* left to read/write. */
622 
623 	/* Used by atapi side */
624 
625 	uchar_t		*ap_cdbp;	/* ptr to SCSI CDB */
626 	uchar_t		ap_cdb_len;	/* length of SCSI CDB (in bytes) */
627 	uchar_t		ap_cdb_pad;	/* padding after SCSI CDB (in shorts) */
628 
629 	struct scsi_arq_status *ap_scbp; /* ptr to SCSI status block */
630 	uchar_t		ap_statuslen;	/* length of SCSI status block */
631 } ata_pkt_t;
632 
633 
634 /*
635  * defines for ap_flags
636  */
637 #define	AP_ATAPI		0x0001	/* device is atapi */
638 #define	AP_ERROR		0x0002	/* normal error */
639 #define	AP_TRAN_ERROR		0x0004	/* transport error */
640 #define	AP_READ			0x0008	/* read data */
641 #define	AP_WRITE		0x0010	/* write data */
642 #define	AP_ABORT		0x0020	/* packet aborted */
643 #define	AP_TIMEOUT		0x0040	/* packet timed out */
644 #define	AP_BUS_RESET		0x0080	/* bus reset */
645 #define	AP_DEV_RESET		0x0100	/* device reset */
646 
647 #define	AP_SENT_CMD		0x0200	/* atapi: cdb sent */
648 #define	AP_XFERRED_DATA		0x0400	/* atapi: data transferred */
649 #define	AP_GOT_STATUS		0x0800	/* atapi: status received */
650 #define	AP_ARQ_ON_ERROR		0x1000	/* atapi: do ARQ on error */
651 #define	AP_ARQ_OKAY		0x2000
652 #define	AP_ARQ_ERROR		0x4000
653 
654 #define	AP_FREE		   0x80000000u	/* packet is free! */
655 
656 
657 /*
658  * public function prototypes
659  */
660 
661 int	ata_check_drive_blacklist(struct ata_id *aidp, uint_t flags);
662 int	ata_command(ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp, int expect_drdy,
663 		int silent, uint_t busy_wait, uchar_t cmd, uchar_t feature,
664 		uchar_t count, uchar_t sector, uchar_t head, uchar_t cyl_low,
665 		uchar_t cyl_hi);
666 int	ata_get_status_clear_intr(ata_ctl_t *ata_ctlp, ata_pkt_t *ata_pktp);
667 int	ata_id_common(uchar_t id_cmd, int drdy_expected,
668 		ddi_acc_handle_t io_hdl1, caddr_t ioaddr1,
669 		ddi_acc_handle_t io_hdl2, caddr_t ioaddr2,
670 		struct ata_id *ata_idp);
671 int	ata_prop_create(dev_info_t *tgt_dip, ata_drv_t *ata_drvp, char *name);
672 int	ata_queue_cmd(int (*func)(ata_ctl_t *, ata_drv_t *, ata_pkt_t *),
673 		void *arg, ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp,
674 		gtgt_t *gtgtp);
675 int	ata_set_feature(ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp,
676 		uchar_t feature, uchar_t value);
677 int	ata_wait(ddi_acc_handle_t io_hdl, caddr_t ioaddr, uchar_t onbits,
678 		uchar_t offbits, uint_t timeout_usec);
679 int	ata_wait3(ddi_acc_handle_t io_hdl, caddr_t ioaddr, uchar_t onbits1,
680 		uchar_t offbits1, uchar_t failure_onbits2,
681 		uchar_t failure_offbits2, uchar_t failure_onbits3,
682 		uchar_t failure_offbits3, uint_t timeout_usec);
683 int	ata_test_lba_support(struct ata_id *aidp);
684 void	ata_nsecwait(clock_t count);
685 int	ata_set_dma_mode(ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp);
686 void	atapi_reset_dma_mode(ata_drv_t *ata_drvp);
687 
688 
689 /*
690  * PCIIDE DMA (Bus Mastering) functions and data in ata_dma.c
691  */
692 extern	ddi_dma_attr_t ata_pciide_dma_attr;
693 extern	int	ata_dma_disabled;
694 
695 int	ata_pciide_alloc(dev_info_t *dip, ata_ctl_t *ata_ctlp);
696 void	ata_pciide_free(ata_ctl_t *ata_ctlp);
697 
698 void	ata_pciide_dma_sg_func(gcmd_t *gcmdp, ddi_dma_cookie_t *dmackp,
699 		int single_segment, int seg_index);
700 void	ata_pciide_dma_setup(ata_ctl_t *ata_ctlp, prde_t *srcp, int sg_cnt);
701 void	ata_pciide_dma_start(ata_ctl_t *ata_ctlp, uchar_t direction);
702 void	ata_pciide_dma_stop(ata_ctl_t *ata_ctlp);
703 int	ata_pciide_status_clear(ata_ctl_t *ata_ctlp);
704 int	ata_pciide_status_dmacheck_clear(ata_ctl_t *ata_ctlp);
705 int	ata_pciide_status_pending(ata_ctl_t *ata_ctlp);
706 
707 #ifdef	__cplusplus
708 }
709 #endif
710 
711 #endif /* _ATA_COMMON_H */
712