1 /********************************************************
2 * Header file for eata_dma.c and eata_pio.c *
3 * Linux EATA SCSI drivers *
4 * (c) 1993-96 Michael Neuffer *
6 * neuffer@mail.uni-mainz.de *
7 *********************************************************
8 * last change: 96/08/14 *
9 ********************************************************/
12 #ifndef _EATA_GENERIC_H
13 #define _EATA_GENERIC_H
17 /*********************************************
19 *********************************************/
21 #define R_LIMIT 0x20000
34 #define BROKEN_INQUIRY 1
36 #define BUSMASTER 0xff
39 #define EATA_SIGNATURE 0x45415441 /* BIG ENDIAN coded "EATA" sig. */
53 #define EATA_CP_SIZE 44
55 #define MAX_PCI_DEVICES 32 /* Maximum # Of Devices Per Bus */
56 #define MAX_METHOD_2 16 /* Max Devices For Method 2 */
57 #define MAX_PCI_BUS 16 /* Maximum # Of Busses Allowed */
60 #define SG_SIZE_BIG 252 /* max. 8096 elements, 64k */
62 #define UPPER_DEVICE_QUEUE_LIMIT 64 /* The limit we have to set for the
63 * device queue to keep the broken
64 * midlevel SCSI code from producing
68 #define TYPE_DISK_QUEUE 16
69 #define TYPE_TAPE_QUEUE 4
70 #define TYPE_ROM_QUEUE 4
71 #define TYPE_OTHER_QUEUE 2
86 #define HD(cmd) ((hostdata *)&(cmd->device->host->hostdata))
87 #define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble))
88 #define SD(host) ((hostdata *)&(host->hostdata))
90 /***********************************************
91 * EATA Command & Register definitions *
92 ***********************************************/
93 #define PCI_REG_DPTconfig 0x40
94 #define PCI_REG_PumpModeAddress 0x44
95 #define PCI_REG_PumpModeData 0x48
96 #define PCI_REG_ConfigParam1 0x50
97 #define PCI_REG_ConfigParam2 0x54
100 #define EATA_CMD_PIO_SETUPTEST 0xc6
101 #define EATA_CMD_PIO_READ_CONFIG 0xf0
102 #define EATA_CMD_PIO_SET_CONFIG 0xf1
103 #define EATA_CMD_PIO_SEND_CP 0xf2
104 #define EATA_CMD_PIO_RECEIVE_SP 0xf3
105 #define EATA_CMD_PIO_TRUNC 0xf4
107 #define EATA_CMD_RESET 0xf9
108 #define EATA_CMD_IMMEDIATE 0xfa
110 #define EATA_CMD_DMA_READ_CONFIG 0xfd
111 #define EATA_CMD_DMA_SET_CONFIG 0xfe
112 #define EATA_CMD_DMA_SEND_CP 0xff
114 #define ECS_EMULATE_SENSE 0xd4
116 #define EATA_GENERIC_ABORT 0x00
117 #define EATA_SPECIFIC_RESET 0x01
118 #define EATA_BUS_RESET 0x02
119 #define EATA_SPECIFIC_ABORT 0x03
120 #define EATA_QUIET_INTR 0x04
121 #define EATA_COLD_BOOT_HBA 0x06 /* Only as a last resort */
122 #define EATA_FORCE_IO 0x07
124 #define HA_CTRLREG 0x206 /* control register for HBA */
125 #define HA_CTRL_DISINT 0x02 /* CTRLREG: disable interrupts */
126 #define HA_CTRL_RESCPU 0x04 /* CTRLREG: reset processor */
127 #define HA_CTRL_8HEADS 0x08 /* CTRLREG: set for drives with*
128 * >=8 heads (WD1003 rudimentary :-) */
130 #define HA_WCOMMAND 0x07 /* command register offset */
131 #define HA_WIFC 0x06 /* immediate command offset */
132 #define HA_WCODE 0x05
133 #define HA_WCODE2 0x04
134 #define HA_WDMAADDR 0x02 /* DMA address LSB offset */
135 #define HA_RAUXSTAT 0x08 /* aux status register offset*/
136 #define HA_RSTATUS 0x07 /* status register offset */
137 #define HA_RDATA 0x00 /* data register (16bit) */
138 #define HA_WDATA 0x00 /* data register (16bit) */
140 #define HA_ABUSY 0x01 /* aux busy bit */
141 #define HA_AIRQ 0x02 /* aux IRQ pending bit */
142 #define HA_SERROR 0x01 /* pr. command ended in error*/
143 #define HA_SMORE 0x02 /* more data soon to come */
144 #define HA_SCORR 0x04 /* data corrected */
145 #define HA_SDRQ 0x08 /* data request active */
146 #define HA_SSC 0x10 /* seek complete */
147 #define HA_SFAULT 0x20 /* write fault */
148 #define HA_SREADY 0x40 /* drive ready */
149 #define HA_SBUSY 0x80 /* drive busy */
150 #define HA_SDRDY HA_SSC+HA_SREADY+HA_SDRQ
152 /**********************************************
153 * Message definitions *
154 **********************************************/
156 #define HA_NO_ERROR 0x00 /* No Error */
157 #define HA_ERR_SEL_TO 0x01 /* Selection Timeout */
158 #define HA_ERR_CMD_TO 0x02 /* Command Timeout */
159 #define HA_BUS_RESET 0x03 /* SCSI Bus Reset Received */
160 #define HA_INIT_POWERUP 0x04 /* Initial Controller Power-up */
161 #define HA_UNX_BUSPHASE 0x05 /* Unexpected Bus Phase */
162 #define HA_UNX_BUS_FREE 0x06 /* Unexpected Bus Free */
163 #define HA_BUS_PARITY 0x07 /* Bus Parity Error */
164 #define HA_SCSI_HUNG 0x08 /* SCSI Hung */
165 #define HA_UNX_MSGRJCT 0x09 /* Unexpected Message Rejected */
166 #define HA_RESET_STUCK 0x0a /* SCSI Bus Reset Stuck */
167 #define HA_RSENSE_FAIL 0x0b /* Auto Request-Sense Failed */
168 #define HA_PARITY_ERR 0x0c /* Controller Ram Parity Error */
169 #define HA_CP_ABORT_NA 0x0d /* Abort Message sent to non-active cmd */
170 #define HA_CP_ABORTED 0x0e /* Abort Message sent to active cmd */
171 #define HA_CP_RESET_NA 0x0f /* Reset Message sent to non-active cmd */
172 #define HA_CP_RESET 0x10 /* Reset Message sent to active cmd */
173 #define HA_ECC_ERR 0x11 /* Controller Ram ECC Error */
174 #define HA_PCI_PARITY 0x12 /* PCI Parity Error */
175 #define HA_PCI_MABORT 0x13 /* PCI Master Abort */
176 #define HA_PCI_TABORT 0x14 /* PCI Target Abort */
177 #define HA_PCI_STABORT 0x15 /* PCI Signaled Target Abort */
179 /**********************************************
180 * Other definitions *
181 **********************************************/
183 struct reg_bit
{ /* reading this one will clear the interrupt */
184 __u8 error
:1; /* previous command ended in an error */
185 __u8 more
:1; /* more DATA coming soon, poll BSY & DRQ (PIO) */
186 __u8 corr
:1; /* data read was successfully corrected with ECC*/
187 __u8 drq
:1; /* data request active */
188 __u8 sc
:1; /* seek complete */
189 __u8 fault
:1; /* write fault */
190 __u8 ready
:1; /* drive ready */
191 __u8 busy
:1; /* controller busy */
194 struct reg_abit
{ /* reading this won't clear the interrupt */
195 __u8 abusy
:1; /* auxiliary busy */
196 __u8 irq
:1; /* set when drive interrupt is asserted */
200 struct eata_register
{ /* EATA register set */
201 __u8 data_reg
[2]; /* R, couldn't figure this one out */
202 __u8 cp_addr
[4]; /* W, CP address register */
204 __u8 command
; /* W, command code: [read|set] conf, send CP*/
205 struct reg_bit status
; /* R, see register_bit1 */
208 struct reg_abit aux_stat
; /* R, see register_bit2 */
211 struct get_conf
{ /* Read Configuration Array */
212 __u32 len
; /* Should return 0x22, 0x24, etc */
213 __u32 signature
; /* Signature MUST be "EATA" */
215 version
:4; /* EATA Version level */
216 __u8 OCS_enabled
:1, /* Overlap Command Support enabled */
217 TAR_support
:1, /* SCSI Target Mode supported */
218 TRNXFR
:1, /* Truncate Transfer Cmd not necessary *
219 * Only used in PIO Mode */
220 MORE_support
:1, /* MORE supported (only PIO Mode) */
221 DMA_support
:1, /* DMA supported Driver uses only *
223 DMA_valid
:1, /* DRQ value in Byte 30 is valid */
224 ATA
:1, /* ATA device connected (not supported) */
225 HAA_valid
:1; /* Hostadapter Address is valid */
227 __u16 cppadlen
; /* Number of pad bytes send after CD data *
228 * set to zero for DMA commands */
229 __u8 scsi_id
[4]; /* SCSI ID of controller 2-0 Byte 0 res. *
230 * if not, zero is returned */
231 __u32 cplen
; /* CP length: number of valid cp bytes */
232 __u32 splen
; /* Number of bytes returned after *
233 * Receive SP command */
234 __u16 queuesiz
; /* max number of queueable CPs */
236 __u16 SGsiz
; /* max number of SG table entries */
237 __u8 IRQ
:4, /* IRQ used this HA */
238 IRQ_TR
:1, /* IRQ Trigger: 0=edge, 1=level */
239 SECOND
:1, /* This is a secondary controller */
240 DMA_channel
:2; /* DRQ index, DRQ is 2comp of DRQX */
241 __u8 sync
; /* device at ID 7 tru 0 is running in *
242 * synchronous mode, this will disappear */
243 __u8 DSBLE
:1, /* ISA i/o addressing is disabled */
244 FORCADR
:1, /* i/o address has been forced */
248 __u8 MAX_ID
:5, /* Max number of SCSI target IDs */
249 MAX_CHAN
:3; /* Number of SCSI busses on HBA */
250 __u8 MAX_LUN
; /* Max number of LUNs */
254 ID_qest
:1, /* Raidnum ID is questionable */
255 is_PCI
:1, /* HBA is PCI */
256 is_EISA
:1; /* HBA is EISA */
257 __u8 RAIDNUM
; /* unique HBA identifier */
267 struct eata_ccb
{ /* Send Command Packet structure */
269 __u8 SCSI_Reset
:1, /* Cause a SCSI Bus reset on the cmd */
270 HBA_Init
:1, /* Cause Controller to reinitialize */
271 Auto_Req_Sen
:1, /* Do Auto Request Sense on errors */
272 scatter
:1, /* Data Ptr points to a SG Packet */
274 Interpret
:1, /* Interpret the SCSI cdb of own use */
275 DataOut
:1, /* Data Out phase with command */
276 DataIn
:1; /* Data In phase with command */
277 __u8 reqlen
; /* Request Sense Length *
278 * Valid if Auto_Req_Sen=1 */
280 __u8 FWNEST
:1, /* send cmd to phys RAID component */
282 __u8 Phsunit
:1, /* physical unit on mirrored pair */
283 I_AT
:1, /* inhibit address translation */
284 I_HBA_C
:1, /* HBA inhibit caching */
287 __u8 cp_id
:5, /* SCSI Device ID of target */
288 cp_channel
:3; /* SCSI Channel # of HBA */
291 cp_luntar
:1, /* CP is for target ROUTINE */
292 cp_dispri
:1, /* Grant disconnect privilege */
293 cp_identify
:1; /* Always TRUE */
294 __u8 cp_msg1
; /* Message bytes 0-3 */
297 __u8 cp_cdb
[12]; /* Command Descriptor Block */
298 __u32 cp_datalen
; /* Data Transfer Length *
299 * If scatter=1 len of sg package */
300 void *cp_viraddr
; /* address of this ccb */
301 __u32 cp_dataDMA
; /* Data Address, if scatter=1 *
302 * address of scatter packet */
303 __u32 cp_statDMA
; /* address for Status Packet */
304 __u32 cp_reqDMA
; /* Request Sense Address, used if *
305 * CP command ends with error */
306 /* Additional CP info begins here */
307 __u32 timestamp
; /* Needed to measure command latency */
312 __u8 status
; /* status of this queueslot */
313 struct scsi_cmnd
*cmd
; /* address of cmd */
314 struct eata_sg_list
*sg_list
;
319 __u8 hba_stat
:7, /* HBA status */
320 EOC
:1; /* True if command finished */
321 __u8 scsi_stat
; /* Target SCSI status */
323 __u32 residue_len
; /* Number of bytes not transferred */
324 struct eata_ccb
*ccb
; /* Address set in COMMAND PACKET */
328 typedef struct hstd
{
333 __u32 firmware_revision
;
335 __u8 bustype
; /* bustype of HBA */
336 __u8 channel
; /* # of avail. scsi channels */
337 __u8 state
; /* state of HBA */
338 __u8 primary
; /* true if primary */
339 __u8 more_support
:1, /* HBA supports MORE flag */
340 immediate_support
:1, /* HBA supports IMMEDIATE CMDs*/
341 broken_INQUIRY
:1; /* This is an EISA HBA with *
343 __u8 do_latency
; /* Latency measurement flag */
346 __u32 reads_lat
[12][4];
347 __u32 writes_lat
[12][4];
349 __u8 resetlevel
[MAXCHANNEL
];
350 __u32 last_ccb
; /* Last used ccb */
351 __u32 cplen
; /* size of CP in words */
352 __u16 cppadlen
; /* pad length of cp in words */
354 __u16 sgsize
; /* # of entries in the SG list*/
355 __u16 devflags
; /* bits set for detected devices */
356 __u8 hostid
; /* SCSI ID of HBA */
357 __u8 moresupport
; /* HBA supports MORE flag */
358 struct Scsi_Host
*next
;
359 struct Scsi_Host
*prev
;
360 struct pci_dev
*pdev
; /* PCI device or NULL for non PCI */
361 struct eata_sp sp
; /* status packet */
362 struct eata_ccb ccb
[0]; /* ccb array begins here */
365 /* structure for max. 2 emulated drives */
366 struct drive_geom_emul
{
367 __u8 trans
; /* translation flag 1=transl */
368 __u8 channel
; /* SCSI channel number */
369 __u8 HBA
; /* HBA number (prim/sec) */
370 __u8 id
; /* drive id */
371 __u8 lun
; /* drive lun */
372 __u32 heads
; /* number of heads */
373 __u32 sectors
; /* number of sectors */
374 __u32 cylinder
; /* number of cylinders */
378 __u8 bios_drives
; /* number of emulated drives */
379 struct drive_geom_emul drv
[2]; /* drive structures */
382 #endif /* _EATA_GENERIC_H */
385 * Overrides for Emacs so that we almost follow Linus's tabbing style.
386 * Emacs will notice this stuff at the end of the file and automatically
387 * adjust the settings for this buffer only. This must remain at the end
389 * ---------------------------------------------------------------------------
392 * c-brace-imaginary-offset: 0
394 * c-argdecl-indent: 4
396 * c-continued-statement-offset: 4
397 * c-continued-brace-offset: 0
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