5 * This file contains some defines for the AT-hd-controller.
9 #define HD_IRQ 14 /* the standard disk interrupt */
11 /* ide.c has its own port definitions in "ide.h" */
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 */
26 #define HD_CMD 0x3f6 /* used for resets */
27 #define HD_ALTSTATUS 0x3f6 /* same as HD_STATUS but doesn't clear irq */
29 /* remainder is shared between hd.c, ide.c, ide-cd.c, and the hdparm utility */
31 /* Bits of HD_STATUS */
33 #define INDEX_STAT 0x02
34 #define ECC_STAT 0x04 /* Corrected error */
36 #define SEEK_STAT 0x10
37 #define WRERR_STAT 0x20
38 #define READY_STAT 0x40
39 #define BUSY_STAT 0x80
41 /* Values for HD_COMMAND */
42 #define WIN_RESTORE 0x10
44 #define WIN_WRITE 0x30
45 #define WIN_WRITE_VERIFY 0x3C
46 #define WIN_VERIFY 0x40
47 #define WIN_FORMAT 0x50
50 #define WIN_DIAGNOSE 0x90
51 #define WIN_SPECIFY 0x91 /* set drive geometry translation */
52 #define WIN_SETIDLE1 0xE3
53 #define WIN_SETIDLE2 0x97
55 #define WIN_STANDBYNOW1 0xE0
56 #define WIN_STANDBYNOW2 0x94
57 #define WIN_SLEEPNOW1 0xE6
58 #define WIN_SLEEPNOW2 0x99
59 #define WIN_CHECKPOWERMODE1 0xE5
60 #define WIN_CHECKPOWERMODE2 0x98
62 #define WIN_DOORLOCK 0xde /* lock door on removable drives */
63 #define WIN_DOORUNLOCK 0xdf /* unlock door on removable drives */
65 #define WIN_MULTREAD 0xC4 /* read sectors using multiple mode */
66 #define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
67 #define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
68 #define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
69 #define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */
70 #define WIN_SETFEATURES 0xEF /* set special drive features */
71 #define WIN_READDMA 0xc8 /* read sectors using DMA transfers */
72 #define WIN_WRITEDMA 0xca /* write sectors using DMA transfers */
74 #define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
75 #define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
77 #define WIN_SMART 0xb0 /* self-monitoring and reporting */
79 /* Additional drive command codes used by ATAPI devices. */
80 #define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
81 #define WIN_SRST 0x08 /* ATAPI soft reset command */
82 #define WIN_PACKETCMD 0xa0 /* Send a packet command. */
84 /* WIN_SMART sub-commands */
86 #define SMART_READ_VALUES 0xd0
87 #define SMART_READ_THRESHOLDS 0xd1
88 #define SMART_AUTOSAVE 0xd2
89 #define SMART_SAVE 0xd3
90 #define SMART_IMMEDIATE_OFFLINE 0xd4
91 #define SMART_ENABLE 0xd8
92 #define SMART_DISABLE 0xd9
93 #define SMART_STATUS 0xda
94 #define SMART_AUTO_OFFLINE 0xdb
96 /* WIN_SETFEATURES sub-commands */
98 #define SETFEATURES_EN_WCACHE 0x02 /* Enable write cache */
99 #define SETFEATURES_XFER 0x03 /* Set transfer mode */
100 # define XFER_UDMA_4 0x44 /* 0100|0100 */
101 # define XFER_UDMA_3 0x43 /* 0100|0011 */
102 # define XFER_UDMA_2 0x42 /* 0100|0010 */
103 # define XFER_UDMA_1 0x41 /* 0100|0001 */
104 # define XFER_UDMA_0 0x40 /* 0100|0000 */
105 # define XFER_MW_DMA_2 0x22 /* 0010|0010 */
106 # define XFER_MW_DMA_1 0x21 /* 0010|0001 */
107 # define XFER_MW_DMA_0 0x20 /* 0010|0000 */
108 # define XFER_SW_DMA_2 0x12 /* 0001|0010 */
109 # define XFER_SW_DMA_1 0x11 /* 0001|0001 */
110 # define XFER_SW_DMA_0 0x10 /* 0001|0000 */
111 # define XFER_PIO_4 0x0C /* 0000|1100 */
112 # define XFER_PIO_3 0x0B /* 0000|1011 */
113 # define XFER_PIO_2 0x0A /* 0000|1010 */
114 # define XFER_PIO_1 0x09 /* 0000|1001 */
115 # define XFER_PIO_0 0x08 /* 0000|1000 */
116 # define XFER_PIO_SLOW 0x00 /* 0000|0000 */
117 #define SETFEATURES_EN_APM 0x05 /* Enable advanced power management */
118 #define SETFEATURES_DIS_MSN 0x31 /* Disable Media Status Notification */
119 #define SETFEATURES_DIS_RLA 0x55 /* Disable read look-ahead feature */
120 #define SETFEATURES_EN_RI 0x5D /* Enable release interrupt */
121 #define SETFEATURES_EN_SI 0x5E /* Enable SERVICE interrupt */
122 #define SETFEATURES_DIS_RPOD 0x66 /* Disable reverting to power on defaults */
123 #define SETFEATURES_DIS_WCACHE 0x82 /* Disable write cache */
124 #define SETFEATURES_DIS_APM 0x85 /* Disable advanced power management */
125 #define SETFEATURES_EN_MSN 0x95 /* Enable Media Status Notification */
126 #define SETFEATURES_EN_RLA 0xAA /* Enable read look-ahead feature */
127 #define SETFEATURES_EN_RPOD 0xCC /* Enable reverting to power on defaults */
128 #define SETFEATURES_DIS_RI 0xDD /* Disable release interrupt */
129 #define SETFEATURES_DIS_SI 0xDE /* Disable SERVICE interrupt */
131 /* WIN_SECURITY sub-commands */
133 #define SECURITY_SET_PASSWORD 0xBA /* 0xF1 */
134 #define SECURITY_UNLOCK 0xBB /* 0xF2 */
135 #define SECURITY_ERASE_PREPARE 0xBC /* 0xF3 */
136 #define SECURITY_ERASE_UNIT 0xBD /* 0xF4 */
137 #define SECURITY_FREEZE_LOCK 0xBE /* 0xF5 */
138 #define SECURITY_DISABLE_PASSWORD 0xBF /* 0xF6 */
140 /* Bits for HD_ERROR */
141 #define MARK_ERR 0x01 /* Bad address mark */
142 #define TRK0_ERR 0x02 /* couldn't find track 0 */
143 #define ABRT_ERR 0x04 /* Command aborted */
144 #define MCR_ERR 0x08 /* media change request */
145 #define ID_ERR 0x10 /* ID field not found */
146 #define ECC_ERR 0x40 /* Uncorrectable ECC error */
147 #define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
148 #define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
152 unsigned char sectors
;
153 unsigned short cylinders
;
157 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
158 #define HDIO_GETGEO 0x0301 /* get device geometry */
159 #define HDIO_GET_UNMASKINTR 0x0302 /* get current unmask setting */
160 #define HDIO_GET_MULTCOUNT 0x0304 /* get current IDE blockmode setting */
161 #define HDIO_OBSOLETE_IDENTITY 0x0307 /* OBSOLETE, DO NOT USE: returns 142 bytes */
162 #define HDIO_GET_KEEPSETTINGS 0x0308 /* get keep-settings-on-reset flag */
163 #define HDIO_GET_32BIT 0x0309 /* get current io_32bit setting */
164 #define HDIO_GET_NOWERR 0x030a /* get ignore-write-error flag */
165 #define HDIO_GET_DMA 0x030b /* get use-dma flag */
166 #define HDIO_GET_NICE 0x030c /* get nice flags */
167 #define HDIO_GET_IDENTITY 0x030d /* get IDE identification info */
168 #define HDIO_DRIVE_CMD 0x031f /* execute a special drive command */
170 /* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
171 #define HDIO_SET_MULTCOUNT 0x0321 /* change IDE blockmode */
172 #define HDIO_SET_UNMASKINTR 0x0322 /* permit other irqs during I/O */
173 #define HDIO_SET_KEEPSETTINGS 0x0323 /* keep ioctl settings on reset */
174 #define HDIO_SET_32BIT 0x0324 /* change io_32bit flags */
175 #define HDIO_SET_NOWERR 0x0325 /* change ignore-write-error flag */
176 #define HDIO_SET_DMA 0x0326 /* change use-dma flag */
177 #define HDIO_SET_PIO_MODE 0x0327 /* reconfig interface to new speed */
178 #define HDIO_SCAN_HWIF 0x0328 /* register and (re)scan interface */
179 #define HDIO_SET_NICE 0x0329 /* set nice flags */
180 #define HDIO_UNREGISTER_HWIF 0x032a /* unregister interface */
182 /* structure returned by HDIO_GET_IDENTITY, as per ANSI ATA2 rev.2f spec */
184 unsigned short config
; /* lots of obsolete bit flags */
185 unsigned short cyls
; /* "physical" cyls */
186 unsigned short reserved2
; /* reserved (word 2) */
187 unsigned short heads
; /* "physical" heads */
188 unsigned short track_bytes
; /* unformatted bytes per track */
189 unsigned short sector_bytes
; /* unformatted bytes per sector */
190 unsigned short sectors
; /* "physical" sectors per track */
191 unsigned short vendor0
; /* vendor unique */
192 unsigned short vendor1
; /* vendor unique */
193 unsigned short vendor2
; /* vendor unique */
194 unsigned char serial_no
[20]; /* 0 = not_specified */
195 unsigned short buf_type
;
196 unsigned short buf_size
; /* 512 byte increments; 0 = not_specified */
197 unsigned short ecc_bytes
; /* for r/w long cmds; 0 = not_specified */
198 unsigned char fw_rev
[8]; /* 0 = not_specified */
199 unsigned char model
[40]; /* 0 = not_specified */
200 unsigned char max_multsect
; /* 0=not_implemented */
201 unsigned char vendor3
; /* vendor unique */
202 unsigned short dword_io
; /* 0=not_implemented; 1=implemented */
203 unsigned char vendor4
; /* vendor unique */
204 unsigned char capability
; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/
205 unsigned short reserved50
; /* reserved (word 50) */
206 unsigned char vendor5
; /* vendor unique */
207 unsigned char tPIO
; /* 0=slow, 1=medium, 2=fast */
208 unsigned char vendor6
; /* vendor unique */
209 unsigned char tDMA
; /* 0=slow, 1=medium, 2=fast */
210 unsigned short field_valid
; /* bits 0:cur_ok 1:eide_ok */
211 unsigned short cur_cyls
; /* logical cylinders */
212 unsigned short cur_heads
; /* logical heads */
213 unsigned short cur_sectors
; /* logical sectors per track */
214 unsigned short cur_capacity0
; /* logical total sectors on drive */
215 unsigned short cur_capacity1
; /* (2 words, misaligned int) */
216 unsigned char multsect
; /* current multiple sector count */
217 unsigned char multsect_valid
; /* when (bit0==1) multsect is ok */
218 unsigned int lba_capacity
; /* total number of sectors */
219 unsigned short dma_1word
; /* single-word dma info */
220 unsigned short dma_mword
; /* multiple-word dma info */
221 unsigned short eide_pio_modes
; /* bits 0:mode3 1:mode4 */
222 unsigned short eide_dma_min
; /* min mword dma cycle time (ns) */
223 unsigned short eide_dma_time
; /* recommended mword dma cycle time (ns) */
224 unsigned short eide_pio
; /* min cycle time (ns), no IORDY */
225 unsigned short eide_pio_iordy
; /* min cycle time (ns), with IORDY */
226 unsigned short word69
;
227 unsigned short word70
;
228 /* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
229 unsigned short word71
;
230 unsigned short word72
;
231 unsigned short word73
;
232 unsigned short word74
;
233 unsigned short word75
;
234 unsigned short word76
;
235 unsigned short word77
;
236 unsigned short word78
;
237 unsigned short word79
;
238 unsigned short word80
;
239 unsigned short word81
;
240 unsigned short command_sets
; /* bits 0:Smart 1:Security 2:Removable 3:PM */
241 unsigned short word83
; /* bits 14:Smart Enabled 13:0 zero */
242 unsigned short word84
;
243 unsigned short word85
;
244 unsigned short word86
;
245 unsigned short word87
;
246 unsigned short dma_ultra
;
247 unsigned short word89
; /* reserved (word 89) */
248 unsigned short word90
; /* reserved (word 90) */
249 unsigned short word91
; /* reserved (word 91) */
250 unsigned short word92
; /* reserved (word 92) */
251 unsigned short word93
; /* reserved (word 93) */
252 unsigned short word94
; /* reserved (word 94) */
253 unsigned short word95
; /* reserved (word 95) */
254 unsigned short word96
; /* reserved (word 96) */
255 unsigned short word97
; /* reserved (word 97) */
256 unsigned short word98
; /* reserved (word 98) */
257 unsigned short word99
; /* reserved (word 99) */
258 unsigned short word100
; /* reserved (word 100) */
259 unsigned short word101
; /* reserved (word 101) */
260 unsigned short word102
; /* reserved (word 102) */
261 unsigned short word103
; /* reserved (word 103) */
262 unsigned short word104
; /* reserved (word 104) */
263 unsigned short word105
; /* reserved (word 105) */
264 unsigned short word106
; /* reserved (word 106) */
265 unsigned short word107
; /* reserved (word 107) */
266 unsigned short word108
; /* reserved (word 108) */
267 unsigned short word109
; /* reserved (word 109) */
268 unsigned short word110
; /* reserved (word 110) */
269 unsigned short word111
; /* reserved (word 111) */
270 unsigned short word112
; /* reserved (word 112) */
271 unsigned short word113
; /* reserved (word 113) */
272 unsigned short word114
; /* reserved (word 114) */
273 unsigned short word115
; /* reserved (word 115) */
274 unsigned short word116
; /* reserved (word 116) */
275 unsigned short word117
; /* reserved (word 117) */
276 unsigned short word118
; /* reserved (word 118) */
277 unsigned short word119
; /* reserved (word 119) */
278 unsigned short word120
; /* reserved (word 120) */
279 unsigned short word121
; /* reserved (word 121) */
280 unsigned short word122
; /* reserved (word 122) */
281 unsigned short word123
; /* reserved (word 123) */
282 unsigned short word124
; /* reserved (word 124) */
283 unsigned short word125
; /* reserved (word 125) */
284 unsigned short word126
; /* reserved (word 126) */
285 unsigned short word127
; /* reserved (word 127) */
286 unsigned short security
; /* bits 0:support 1:enabled 2:locked 3:frozen */
287 unsigned short reserved
[127];
291 * IDE "nice" flags. These are used on a per drive basis to determine
292 * when to be nice and give more bandwidth to the other devices which
293 * share the same IDE bus.
295 #define IDE_NICE_DSC_OVERLAP (0) /* per the DSC overlap protocol */
296 #define IDE_NICE_ATAPI_OVERLAP (1) /* not supported yet */
297 #define IDE_NICE_0 (2) /* when sure that it won't affect us */
298 #define IDE_NICE_1 (3) /* when probably won't affect us much */
299 #define IDE_NICE_2 (4) /* when we know it's on our expense */
303 * These routines are used for kernel command line parameters from main.c:
305 #include <linux/config.h>
307 #ifdef CONFIG_BLK_DEV_HD
308 void hd_setup(char *, int *);
309 #endif /* CONFIG_BLK_DEV_HD */
311 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
312 int ide_register(int io_port
, int ctl_port
, int irq
);
313 void ide_unregister(unsigned int);
314 #endif /* CONFIG_BLK_DEV_IDE || CONFIG_BLK_DEV_IDE_MODULE */
316 #endif /* __KERNEL__ */
318 #endif /* _LINUX_HDREG_H */
