1#ifndef _LINUX_HDREG_H
2#define _LINUX_HDREG_H
3
4/*
5 * This file contains some defines for the AT-hd-controller.
6 * Various sources.
7 */
8
9#define HD_IRQ 14			/* the standard disk interrupt */
10
11/* ide.c has its own port definitions in "ide.h" */
12
13/* Hd controller regs. Ref: IBM AT Bios-listing */
14#define HD_DATA		0x1f0		/* _CTL when writing */
15#define HD_ERROR	0x1f1		/* see err-bits */
16#define HD_NSECTOR	0x1f2		/* nr of sectors to read/write */
17#define HD_SECTOR	0x1f3		/* starting sector */
18#define HD_LCYL		0x1f4		/* starting cylinder */
19#define HD_HCYL		0x1f5		/* high byte of starting cyl */
20#define HD_CURRENT	0x1f6		/* 101dhhhh , d=drive, hhhh=head */
21#define HD_STATUS	0x1f7		/* see status-bits */
22#define HD_FEATURE	HD_ERROR	/* same io address, read=error, write=feature */
23#define HD_PRECOMP	HD_FEATURE	/* obsolete use of this port - predates IDE */
24#define HD_COMMAND	HD_STATUS	/* same io address, read=status, write=cmd */
25
26#define HD_CMD		0x3f6		/* used for resets */
27#define HD_ALTSTATUS	0x3f6		/* same as HD_STATUS but doesn't clear irq */
28
29/* remainder is shared between hd.c, ide.c, ide-cd.c, and the hdparm utility */
30
31/* Bits of HD_STATUS */
32#define ERR_STAT		0x01
33#define INDEX_STAT		0x02
34#define ECC_STAT		0x04	/* Corrected error */
35#define DRQ_STAT		0x08
36#define SEEK_STAT		0x10
37#define WRERR_STAT		0x20
38#define READY_STAT		0x40
39#define BUSY_STAT		0x80
40
41/* Bits for HD_ERROR */
42#define MARK_ERR		0x01	/* Bad address mark */
43#define TRK0_ERR		0x02	/* couldn't find track 0 */
44#define ABRT_ERR		0x04	/* Command aborted */
45#define MCR_ERR			0x08	/* media change request */
46#define ID_ERR			0x10	/* ID field not found */
47#define MC_ERR			0x20	/* media changed */
48#define ECC_ERR			0x40	/* Uncorrectable ECC error */
49#define BBD_ERR			0x80	/* pre-EIDE meaning:  block marked bad */
50#define ICRC_ERR		0x80	/* new meaning:  CRC error during transfer */
51
52/*
53 * Command Header sizes for IOCTL commands
54 *	HDIO_DRIVE_CMD, HDIO_DRIVE_TASK, and HDIO_DRIVE_TASKFILE
55 */
56
57typedef unsigned char task_ioreg_t;
58
59#define HDIO_DRIVE_CMD_HDR_SIZE		4*sizeof(task_ioreg_t)
60#define HDIO_DRIVE_TASK_HDR_SIZE	8*sizeof(task_ioreg_t)
61#define HDIO_DRIVE_HOB_HDR_SIZE		8*sizeof(task_ioreg_t)
62
63#define IDE_DRIVE_TASK_INVALID		-1
64#define IDE_DRIVE_TASK_NO_DATA		0
65#define IDE_DRIVE_TASK_SET_XFER		1
66
67#define IDE_DRIVE_TASK_IN		2
68
69#define IDE_DRIVE_TASK_OUT		3
70#define IDE_DRIVE_TASK_RAW_WRITE	4
71
72struct hd_drive_cmd_hdr {
73	task_ioreg_t command;
74	task_ioreg_t sector_number;
75	task_ioreg_t feature;
76	task_ioreg_t sector_count;
77};
78
79typedef struct hd_drive_task_hdr {
80	task_ioreg_t data;
81	task_ioreg_t feature;
82	task_ioreg_t sector_count;
83	task_ioreg_t sector_number;
84	task_ioreg_t low_cylinder;
85	task_ioreg_t high_cylinder;
86	task_ioreg_t device_head;
87	task_ioreg_t command;
88} task_struct_t;
89
90typedef struct hd_drive_hob_hdr {
91	task_ioreg_t data;
92	task_ioreg_t feature;
93	task_ioreg_t sector_count;
94	task_ioreg_t sector_number;
95	task_ioreg_t low_cylinder;
96	task_ioreg_t high_cylinder;
97	task_ioreg_t device_head;
98	task_ioreg_t control;
99} hob_struct_t;
100
101typedef union ide_reg_valid_s {
102	unsigned all				: 16;
103	struct {
104		unsigned data			: 1;
105		unsigned error_feature		: 1;
106		unsigned sector			: 1;
107		unsigned nsector		: 1;
108		unsigned lcyl			: 1;
109		unsigned hcyl			: 1;
110		unsigned select			: 1;
111		unsigned status_command		: 1;
112
113		unsigned data_hob		: 1;
114		unsigned error_feature_hob	: 1;
115		unsigned sector_hob		: 1;
116		unsigned nsector_hob		: 1;
117		unsigned lcyl_hob		: 1;
118		unsigned hcyl_hob		: 1;
119		unsigned select_hob		: 1;
120		unsigned control_hob		: 1;
121	} b;
122} ide_reg_valid_t;
123
124/*
125 * Define standard taskfile in/out register
126 */
127#define IDE_TASKFILE_STD_OUT_FLAGS	0xFE
128#define IDE_TASKFILE_STD_IN_FLAGS	0xFE
129#define IDE_HOB_STD_OUT_FLAGS		0xC0
130#define IDE_HOB_STD_IN_FLAGS		0xC0
131
132typedef struct ide_task_request_s {
133	task_ioreg_t	io_ports[8];
134	task_ioreg_t	hob_ports[8];
135	ide_reg_valid_t	out_flags;
136	ide_reg_valid_t	in_flags;
137	int		data_phase;
138	int		req_cmd;
139	unsigned long	out_size;
140	unsigned long	in_size;
141} ide_task_request_t;
142
143typedef struct ide_ioctl_request_s {
144	ide_task_request_t	*task_request;
145	unsigned char		*out_buffer;
146	unsigned char		*in_buffer;
147} ide_ioctl_request_t;
148
149#define TASKFILE_INVALID		0x7fff
150#define TASKFILE_48			0x8000
151
152#define TASKFILE_NO_DATA		0x0000
153
154#define TASKFILE_IN			0x0001
155#define TASKFILE_MULTI_IN		0x0002
156
157#define TASKFILE_OUT			0x0004
158#define TASKFILE_MULTI_OUT		0x0008
159#define TASKFILE_IN_OUT			0x0010
160
161#define TASKFILE_IN_DMA			0x0020
162#define TASKFILE_OUT_DMA		0x0040
163#define TASKFILE_IN_DMAQ		0x0080
164#define TASKFILE_OUT_DMAQ		0x0100
165
166#define TASKFILE_P_IN			0x0200
167#define TASKFILE_P_OUT			0x0400
168#define TASKFILE_P_IN_DMA		0x0800
169#define TASKFILE_P_OUT_DMA		0x1000
170#define TASKFILE_P_IN_DMAQ		0x2000
171#define TASKFILE_P_OUT_DMAQ		0x4000
172
173/* ATA/ATAPI Commands pre T13 Spec */
174#define WIN_NOP				0x00
175#define CFA_REQ_EXT_ERROR_CODE		0x03 /* CFA Request Extended Error Code */
176#define WIN_SRST			0x08 /* ATAPI soft reset command */
177#define WIN_DEVICE_RESET		0x08
178#define WIN_RESTORE			0x10
179#define WIN_READ			0x20 /* 28-Bit */
180#define WIN_READ_EXT			0x24 /* 48-Bit */
181#define WIN_READDMA_EXT			0x25 /* 48-Bit */
182#define WIN_READDMA_QUEUED_EXT		0x26 /* 48-Bit */
183#define WIN_READ_NATIVE_MAX_EXT		0x27 /* 48-Bit */
184#define WIN_MULTREAD_EXT		0x29 /* 48-Bit */
185#define WIN_WRITE			0x30 /* 28-Bit */
186#define WIN_WRITE_EXT			0x34 /* 48-Bit */
187#define WIN_WRITEDMA_EXT		0x35 /* 48-Bit */
188#define WIN_WRITEDMA_QUEUED_EXT		0x36 /* 48-Bit */
189#define WIN_SET_MAX_EXT			0x37 /* 48-Bit */
190#define CFA_WRITE_SECT_WO_ERASE		0x38 /* CFA Write Sectors without erase */
191#define WIN_MULTWRITE_EXT		0x39 /* 48-Bit */
192#define WIN_WRITE_VERIFY		0x3C /* 28-Bit */
193#define WIN_VERIFY			0x40 /* 28-Bit - Read Verify Sectors */
194#define WIN_VERIFY_EXT			0x42 /* 48-Bit */
195#define WIN_FORMAT			0x50
196#define WIN_INIT			0x60
197#define WIN_SEEK			0x70
198#define CFA_TRANSLATE_SECTOR		0x87 /* CFA Translate Sector */
199#define WIN_DIAGNOSE			0x90
200#define WIN_SPECIFY			0x91 /* set drive geometry translation */
201#define WIN_DOWNLOAD_MICROCODE		0x92
202#define WIN_STANDBYNOW2			0x94
203#define WIN_SETIDLE2			0x97
204#define WIN_CHECKPOWERMODE2		0x98
205#define WIN_SLEEPNOW2			0x99
206#define WIN_PACKETCMD			0xA0 /* Send a packet command. */
207#define WIN_PIDENTIFY			0xA1 /* identify ATAPI device	*/
208#define WIN_QUEUED_SERVICE		0xA2
209#define WIN_SMART			0xB0 /* self-monitoring and reporting */
210#define CFA_ERASE_SECTORS       	0xC0
211#define WIN_MULTREAD			0xC4 /* read sectors using multiple mode*/
212#define WIN_MULTWRITE			0xC5 /* write sectors using multiple mode */
213#define WIN_SETMULT			0xC6 /* enable/disable multiple mode */
214#define WIN_READDMA_QUEUED		0xC7 /* read sectors using Queued DMA transfers */
215#define WIN_READDMA			0xC8 /* read sectors using DMA transfers */
216#define WIN_WRITEDMA			0xCA /* write sectors using DMA transfers */
217#define WIN_WRITEDMA_QUEUED		0xCC /* write sectors using Queued DMA transfers */
218#define CFA_WRITE_MULTI_WO_ERASE	0xCD /* CFA Write multiple without erase */
219#define WIN_GETMEDIASTATUS		0xDA
220#define WIN_DOORLOCK			0xDE /* lock door on removable drives */
221#define WIN_DOORUNLOCK			0xDF /* unlock door on removable drives */
222#define WIN_STANDBYNOW1			0xE0
223#define WIN_IDLEIMMEDIATE		0xE1 /* force drive to become "ready" */
224#define WIN_STANDBY             	0xE2 /* Set device in Standby Mode */
225#define WIN_SETIDLE1			0xE3
226#define WIN_READ_BUFFER			0xE4 /* force read only 1 sector */
227#define WIN_CHECKPOWERMODE1		0xE5
228#define WIN_SLEEPNOW1			0xE6
229#define WIN_FLUSH_CACHE			0xE7
230#define WIN_WRITE_BUFFER		0xE8 /* force write only 1 sector */
231#define WIN_FLUSH_CACHE_EXT		0xEA /* 48-Bit */
232#define WIN_IDENTIFY			0xEC /* ask drive to identify itself	*/
233#define WIN_MEDIAEJECT			0xED
234#define WIN_IDENTIFY_DMA		0xEE /* same as WIN_IDENTIFY, but DMA */
235#define WIN_SETFEATURES			0xEF /* set special drive features */
236#define EXABYTE_ENABLE_NEST		0xF0
237#define WIN_SECURITY_SET_PASS		0xF1
238#define WIN_SECURITY_UNLOCK		0xF2
239#define WIN_SECURITY_ERASE_PREPARE	0xF3
240#define WIN_SECURITY_ERASE_UNIT		0xF4
241#define WIN_SECURITY_FREEZE_LOCK	0xF5
242#define WIN_SECURITY_DISABLE		0xF6
243#define WIN_READ_NATIVE_MAX		0xF8 /* return the native maximum address */
244#define WIN_SET_MAX			0xF9
245#define DISABLE_SEAGATE			0xFB
246
247/* WIN_SMART sub-commands */
248
249#define SMART_READ_VALUES		0xD0
250#define SMART_READ_THRESHOLDS		0xD1
251#define SMART_AUTOSAVE			0xD2
252#define SMART_SAVE			0xD3
253#define SMART_IMMEDIATE_OFFLINE		0xD4
254#define SMART_READ_LOG_SECTOR		0xD5
255#define SMART_WRITE_LOG_SECTOR		0xD6
256#define SMART_WRITE_THRESHOLDS		0xD7
257#define SMART_ENABLE			0xD8
258#define SMART_DISABLE			0xD9
259#define SMART_STATUS			0xDA
260#define SMART_AUTO_OFFLINE		0xDB
261
262/* Password used in TF4 & TF5 executing SMART commands */
263
264#define SMART_LCYL_PASS			0x4F
265#define SMART_HCYL_PASS			0xC2
266
267/* WIN_SETFEATURES sub-commands */
268
269#define SETFEATURES_EN_WCACHE	0x02	/* Enable write cache */
270#define SETFEATURES_XFER	0x03	/* Set transfer mode */
271#	define XFER_UDMA_7	0x47	/* 0100|0111 */
272#	define XFER_UDMA_6	0x46	/* 0100|0110 */
273#	define XFER_UDMA_5	0x45	/* 0100|0101 */
274#	define XFER_UDMA_4	0x44	/* 0100|0100 */
275#	define XFER_UDMA_3	0x43	/* 0100|0011 */
276#	define XFER_UDMA_2	0x42	/* 0100|0010 */
277#	define XFER_UDMA_1	0x41	/* 0100|0001 */
278#	define XFER_UDMA_0	0x40	/* 0100|0000 */
279#	define XFER_MW_DMA_2	0x22	/* 0010|0010 */
280#	define XFER_MW_DMA_1	0x21	/* 0010|0001 */
281#	define XFER_MW_DMA_0	0x20	/* 0010|0000 */
282#	define XFER_SW_DMA_2	0x12	/* 0001|0010 */
283#	define XFER_SW_DMA_1	0x11	/* 0001|0001 */
284#	define XFER_SW_DMA_0	0x10	/* 0001|0000 */
285#	define XFER_PIO_4	0x0C	/* 0000|1100 */
286#	define XFER_PIO_3	0x0B	/* 0000|1011 */
287#	define XFER_PIO_2	0x0A	/* 0000|1010 */
288#	define XFER_PIO_1	0x09	/* 0000|1001 */
289#	define XFER_PIO_0	0x08	/* 0000|1000 */
290#	define XFER_PIO_SLOW	0x00	/* 0000|0000 */
291#define SETFEATURES_DIS_DEFECT	0x04	/* Disable Defect Management */
292#define SETFEATURES_EN_APM	0x05	/* Enable advanced power management */
293#define SETFEATURES_DIS_MSN	0x31	/* Disable Media Status Notification */
294#define SETFEATURES_EN_AAM	0x42	/* Enable Automatic Acoustic Management */
295#define SETFEATURES_DIS_RLA	0x55	/* Disable read look-ahead feature */
296#define SETFEATURES_EN_RI	0x5D	/* Enable release interrupt */
297#define SETFEATURES_EN_SI	0x5E	/* Enable SERVICE interrupt */
298#define SETFEATURES_DIS_RPOD	0x66	/* Disable reverting to power on defaults */
299#define SETFEATURES_DIS_WCACHE	0x82	/* Disable write cache */
300#define SETFEATURES_EN_DEFECT	0x84	/* Enable Defect Management */
301#define SETFEATURES_DIS_APM	0x85	/* Disable advanced power management */
302#define SETFEATURES_EN_MSN	0x95	/* Enable Media Status Notification */
303#define SETFEATURES_EN_RLA	0xAA	/* Enable read look-ahead feature */
304#define SETFEATURES_PREFETCH	0xAB	/* Sets drive prefetch value */
305#define SETFEATURES_DIS_AAM	0xC2	/* Disable Automatic Acoustic Management */
306#define SETFEATURES_EN_RPOD	0xCC	/* Enable reverting to power on defaults */
307#define SETFEATURES_DIS_RI	0xDD	/* Disable release interrupt */
308#define SETFEATURES_DIS_SI	0xDE	/* Disable SERVICE interrupt */
309
310/* WIN_SECURITY sub-commands */
311
312#define SECURITY_SET_PASSWORD		0xBA
313#define SECURITY_UNLOCK			0xBB
314#define SECURITY_ERASE_PREPARE		0xBC
315#define SECURITY_ERASE_UNIT		0xBD
316#define SECURITY_FREEZE_LOCK		0xBE
317#define SECURITY_DISABLE_PASSWORD	0xBF
318
319struct hd_geometry {
320      unsigned char heads;
321      unsigned char sectors;
322      unsigned short cylinders;
323      unsigned long start;
324};
325
326/* BIG GEOMETRY */
327struct hd_big_geometry {
328	unsigned char heads;
329	unsigned char sectors;
330	unsigned int cylinders;
331	unsigned long start;
332};
333
334/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
335#define HDIO_GETGEO		0x0301	/* get device geometry */
336#define HDIO_GET_UNMASKINTR	0x0302	/* get current unmask setting */
337#define HDIO_GET_MULTCOUNT	0x0304	/* get current IDE blockmode setting */
338#define HDIO_GET_QDMA		0x0305	/* get use-qdma flag */
339#define HDIO_OBSOLETE_IDENTITY	0x0307	/* OBSOLETE, DO NOT USE: returns 142 bytes */
340#define HDIO_GET_KEEPSETTINGS	0x0308	/* get keep-settings-on-reset flag */
341#define HDIO_GET_32BIT		0x0309	/* get current io_32bit setting */
342#define HDIO_GET_NOWERR		0x030a	/* get ignore-write-error flag */
343#define HDIO_GET_DMA		0x030b	/* get use-dma flag */
344#define HDIO_GET_NICE		0x030c	/* get nice flags */
345#define HDIO_GET_IDENTITY	0x030d	/* get IDE identification info */
346#define HDIO_GET_WCACHE		0x030e	/* get write cache mode on|off */
347#define HDIO_GET_ACOUSTIC	0x030f	/* get acoustic value */
348#define	HDIO_GET_ADDRESS	0x0310	/* */
349
350#define HDIO_GET_BUSSTATE	0x031a	/* get the bus state of the hwif */
351#define HDIO_TRISTATE_HWIF	0x031b	/* execute a channel tristate */
352#define HDIO_DRIVE_RESET	0x031c	/* execute a device reset */
353#define HDIO_DRIVE_TASKFILE	0x031d	/* execute raw taskfile */
354#define HDIO_DRIVE_TASK		0x031e	/* execute task and special drive command */
355#define HDIO_DRIVE_CMD		0x031f	/* execute a special drive command */
356
357#define HDIO_DRIVE_CMD_AEB	HDIO_DRIVE_TASK
358
359/* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
360#define HDIO_SET_MULTCOUNT	0x0321	/* change IDE blockmode */
361#define HDIO_SET_UNMASKINTR	0x0322	/* permit other irqs during I/O */
362#define HDIO_SET_KEEPSETTINGS	0x0323	/* keep ioctl settings on reset */
363#define HDIO_SET_32BIT		0x0324	/* change io_32bit flags */
364#define HDIO_SET_NOWERR		0x0325	/* change ignore-write-error flag */
365#define HDIO_SET_DMA		0x0326	/* change use-dma flag */
366#define HDIO_SET_PIO_MODE	0x0327	/* reconfig interface to new speed */
367#define HDIO_SCAN_HWIF		0x0328	/* register and (re)scan interface */
368#define HDIO_SET_NICE		0x0329	/* set nice flags */
369#define HDIO_UNREGISTER_HWIF	0x032a  /* unregister interface */
370#define HDIO_SET_WCACHE		0x032b	/* change write cache enable-disable */
371#define HDIO_SET_ACOUSTIC	0x032c	/* change acoustic behavior */
372#define HDIO_SET_BUSSTATE	0x032d	/* set the bus state of the hwif */
373#define HDIO_SET_QDMA		0x032e	/* change use-qdma flag */
374#define HDIO_SET_ADDRESS	0x032f	/* change lba addressing modes */
375
376/* bus states */
377enum {
378	BUSSTATE_OFF = 0,
379	BUSSTATE_ON,
380	BUSSTATE_TRISTATE
381};
382
383/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
384#define HDIO_GETGEO_BIG		0x0330	/* */
385#define HDIO_GETGEO_BIG_RAW	0x0331	/* */
386
387#define __NEW_HD_DRIVE_ID
388/* structure returned by HDIO_GET_IDENTITY,
389 * as per ANSI NCITS ATA6 rev.1b spec
390 */
391struct hd_driveid {
392	unsigned short	config;		/* lots of obsolete bit flags */
393	unsigned short	cyls;		/* Obsolete, "physical" cyls */
394	unsigned short	reserved2;	/* reserved (word 2) */
395	unsigned short	heads;		/* Obsolete, "physical" heads */
396	unsigned short	track_bytes;	/* unformatted bytes per track */
397	unsigned short	sector_bytes;	/* unformatted bytes per sector */
398	unsigned short	sectors;	/* Obsolete, "physical" sectors per track */
399	unsigned short	vendor0;	/* vendor unique */
400	unsigned short	vendor1;	/* vendor unique */
401	unsigned short	vendor2;	/* Retired vendor unique */
402	unsigned char	serial_no[20];	/* 0 = not_specified */
403	unsigned short	buf_type;	/* Retired */
404	unsigned short	buf_size;	/* Retired, 512 byte increments
405					 * 0 = not_specified
406					 */
407	unsigned short	ecc_bytes;	/* for r/w long cmds; 0 = not_specified */
408	unsigned char	fw_rev[8];	/* 0 = not_specified */
409	unsigned char	model[40];	/* 0 = not_specified */
410	unsigned char	max_multsect;	/* 0=not_implemented */
411	unsigned char	vendor3;	/* vendor unique */
412	unsigned short	dword_io;	/* 0=not_implemented; 1=implemented */
413	unsigned char	vendor4;	/* vendor unique */
414	unsigned char	capability;	/* (upper byte of word 49)
415					 *  3:	IORDYsup
416					 *  2:	IORDYsw
417					 *  1:	LBA
418					 *  0:	DMA
419					 */
420	unsigned short	reserved50;	/* reserved (word 50) */
421	unsigned char	vendor5;	/* Obsolete, vendor unique */
422	unsigned char	tPIO;		/* Obsolete, 0=slow, 1=medium, 2=fast */
423	unsigned char	vendor6;	/* Obsolete, vendor unique */
424	unsigned char	tDMA;		/* Obsolete, 0=slow, 1=medium, 2=fast */
425	unsigned short	field_valid;	/* (word 53)
426					 *  2:	ultra_ok	word  88
427					 *  1:	eide_ok		words 64-70
428					 *  0:	cur_ok		words 54-58
429					 */
430	unsigned short	cur_cyls;	/* Obsolete, logical cylinders */
431	unsigned short	cur_heads;	/* Obsolete, l heads */
432	unsigned short	cur_sectors;	/* Obsolete, l sectors per track */
433	unsigned short	cur_capacity0;	/* Obsolete, l total sectors on drive */
434	unsigned short	cur_capacity1;	/* Obsolete, (2 words, misaligned int)     */
435	unsigned char	multsect;	/* current multiple sector count */
436	unsigned char	multsect_valid;	/* when (bit0==1) multsect is ok */
437	unsigned int	lba_capacity;	/* Obsolete, total number of sectors */
438	unsigned short	dma_1word;	/* Obsolete, single-word dma info */
439	unsigned short	dma_mword;	/* multiple-word dma info */
440	unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
441	unsigned short  eide_dma_min;	/* min mword dma cycle time (ns) */
442	unsigned short  eide_dma_time;	/* recommended mword dma cycle time (ns) */
443	unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
444	unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
445	unsigned short	words69_70[2];	/* reserved words 69-70
446					 * future command overlap and queuing
447					 */
448	/* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
449	unsigned short	words71_74[4];	/* reserved words 71-74
450					 * for IDENTIFY PACKET DEVICE command
451					 */
452	unsigned short  queue_depth;	/* (word 75)
453					 * 15:5	reserved
454					 *  4:0	Maximum queue depth -1
455					 */
456	unsigned short  words76_79[4];	/* reserved words 76-79 */
457	unsigned short  major_rev_num;	/* (word 80) */
458	unsigned short  minor_rev_num;	/* (word 81) */
459	unsigned short  command_set_1;	/* (word 82) supported
460					 * 15:	Obsolete
461					 * 14:	NOP command
462					 * 13:	READ_BUFFER
463					 * 12:	WRITE_BUFFER
464					 * 11:	Obsolete
465					 * 10:	Host Protected Area
466					 *  9:	DEVICE Reset
467					 *  8:	SERVICE Interrupt
468					 *  7:	Release Interrupt
469					 *  6:	look-ahead
470					 *  5:	write cache
471					 *  4:	PACKET Command
472					 *  3:	Power Management Feature Set
473					 *  2:	Removable Feature Set
474					 *  1:	Security Feature Set
475					 *  0:	SMART Feature Set
476					 */
477	unsigned short  command_set_2;	/* (word 83)
478					 * 15:	Shall be ZERO
479					 * 14:	Shall be ONE
480					 * 13:	FLUSH CACHE EXT
481					 * 12:	FLUSH CACHE
482					 * 11:	Device Configuration Overlay
483					 * 10:	48-bit Address Feature Set
484					 *  9:	Automatic Acoustic Management
485					 *  8:	SET MAX security
486					 *  7:	reserved 1407DT PARTIES
487					 *  6:	SetF sub-command Power-Up
488					 *  5:	Power-Up in Standby Feature Set
489					 *  4:	Removable Media Notification
490					 *  3:	APM Feature Set
491					 *  2:	CFA Feature Set
492					 *  1:	READ/WRITE DMA QUEUED
493					 *  0:	Download MicroCode
494					 */
495	unsigned short  cfsse;		/* (word 84)
496					 * cmd set-feature supported extensions
497					 * 15:	Shall be ZERO
498					 * 14:	Shall be ONE
499					 * 13:3	reserved
500					 *  2:	Media Serial Number Valid
501					 *  1:	SMART selt-test supported
502					 *  0:	SMART error logging
503					 */
504	unsigned short  cfs_enable_1;	/* (word 85)
505					 * command set-feature enabled
506					 * 15:	Obsolete
507					 * 14:	NOP command
508					 * 13:	READ_BUFFER
509					 * 12:	WRITE_BUFFER
510					 * 11:	Obsolete
511					 * 10:	Host Protected Area
512					 *  9:	DEVICE Reset
513					 *  8:	SERVICE Interrupt
514					 *  7:	Release Interrupt
515					 *  6:	look-ahead
516					 *  5:	write cache
517					 *  4:	PACKET Command
518					 *  3:	Power Management Feature Set
519					 *  2:	Removable Feature Set
520					 *  1:	Security Feature Set
521					 *  0:	SMART Feature Set
522					 */
523	unsigned short  cfs_enable_2;	/* (word 86)
524					 * command set-feature enabled
525					 * 15:	Shall be ZERO
526					 * 14:	Shall be ONE
527					 * 13:	FLUSH CACHE EXT
528					 * 12:	FLUSH CACHE
529					 * 11:	Device Configuration Overlay
530					 * 10:	48-bit Address Feature Set
531					 *  9:	Automatic Acoustic Management
532					 *  8:	SET MAX security
533					 *  7:	reserved 1407DT PARTIES
534					 *  6:	SetF sub-command Power-Up
535					 *  5:	Power-Up in Standby Feature Set
536					 *  4:	Removable Media Notification
537					 *  3:	APM Feature Set
538					 *  2:	CFA Feature Set
539					 *  1:	READ/WRITE DMA QUEUED
540					 *  0:	Download MicroCode
541					 */
542	unsigned short  csf_default;	/* (word 87)
543					 * command set-feature default
544					 * 15:	Shall be ZERO
545					 * 14:	Shall be ONE
546					 * 13:3	reserved
547					 *  2:	Media Serial Number Valid
548					 *  1:	SMART selt-test supported
549					 *  0:	SMART error logging
550					 */
551	unsigned short  dma_ultra;	/* (word 88) */
552	unsigned short	word89;		/* reserved (word 89) */
553	unsigned short	word90;		/* reserved (word 90) */
554	unsigned short	CurAPMvalues;	/* current APM values */
555	unsigned short	word92;		/* reserved (word 92) */
556	unsigned short	hw_config;	/* hardware config (word 93)
557					 * 15:
558					 * 14:
559					 * 13:
560					 * 12:
561					 * 11:
562					 * 10:
563					 *  9:
564					 *  8:
565					 *  7:
566					 *  6:
567					 *  5:
568					 *  4:
569					 *  3:
570					 *  2:
571					 *  1:
572					 *  0:
573					 */
574	unsigned short	acoustic;	/* (word 94)
575					 * 15:8	Vendor's recommended value
576					 *  7:0	current value
577					 */
578	unsigned short	words95_99[5];	/* reserved words 95-99 */
579	unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
580	unsigned short	words104_125[22];/* reserved words 104-125 */
581	unsigned short	last_lun;	/* (word 126) */
582	unsigned short	word127;	/* (word 127) Feature Set
583					 * Removable Media Notification
584					 * 15:2	reserved
585					 *  1:0	00 = not supported
586					 *	01 = supported
587					 *	10 = reserved
588					 *	11 = reserved
589					 */
590	unsigned short	dlf;		/* (word 128)
591					 * device lock function
592					 * 15:9	reserved
593					 *  8	security level 1:max 0:high
594					 *  7:6	reserved
595					 *  5	enhanced erase
596					 *  4	expire
597					 *  3	frozen
598					 *  2	locked
599					 *  1	en/disabled
600					 *  0	capability
601					 */
602	unsigned short  csfo;		/*  (word 129)
603					 * current set features options
604					 * 15:4	reserved
605					 *  3:	auto reassign
606					 *  2:	reverting
607					 *  1:	read-look-ahead
608					 *  0:	write cache
609					 */
610	unsigned short	words130_155[26];/* reserved vendor words 130-155 */
611	unsigned short	word156;	/* reserved vendor word 156 */
612	unsigned short	words157_159[3];/* reserved vendor words 157-159 */
613	unsigned short	cfa_power;	/* (word 160) CFA Power Mode
614					 * 15 word 160 supported
615					 * 14 reserved
616					 * 13
617					 * 12
618					 * 11:0
619					 */
620	unsigned short	words161_175[14];/* Reserved for CFA */
621	unsigned short	words176_205[31];/* Current Media Serial Number */
622	unsigned short	words206_254[48];/* reserved words 206-254 */
623	unsigned short	integrity_word;	/* (word 255)
624					 * 15:8 Checksum
625					 *  7:0 Signature
626					 */
627};
628
629/*
630 * IDE "nice" flags. These are used on a per drive basis to determine
631 * when to be nice and give more bandwidth to the other devices which
632 * share the same IDE bus.
633 */
634#define IDE_NICE_DSC_OVERLAP	(0)	/* per the DSC overlap protocol */
635#define IDE_NICE_ATAPI_OVERLAP	(1)	/* not supported yet */
636#define IDE_NICE_0		(2)	/* when sure that it won't affect us */
637#define IDE_NICE_1		(3)	/* when probably won't affect us much */
638#define IDE_NICE_2		(4)	/* when we know it's on our expense */
639
640#ifdef __KERNEL__
641/*
642 * These routines are used for kernel command line parameters from main.c:
643 */
644#include <linux/config.h>
645
646#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
647int ide_register(int io_port, int ctl_port, int irq);
648void ide_unregister(unsigned int);
649#endif /* CONFIG_BLK_DEV_IDE || CONFIG_BLK_DEV_IDE_MODULE */
650
651#endif  /* __KERNEL__ */
652
653#endif	/* _LINUX_HDREG_H */
654