1d2912cb1SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds * linux/drivers/acorn/scsi/fas216.h
41da177e4SLinus Torvalds *
51da177e4SLinus Torvalds * Copyright (C) 1997-2000 Russell King
61da177e4SLinus Torvalds *
71da177e4SLinus Torvalds * FAS216 generic driver
81da177e4SLinus Torvalds */
91da177e4SLinus Torvalds #ifndef FAS216_H
101da177e4SLinus Torvalds #define FAS216_H
111da177e4SLinus Torvalds
12ccf9ea91SBoaz Harrosh #include <scsi/scsi_eh.h>
13ccf9ea91SBoaz Harrosh
141da177e4SLinus Torvalds #include "queue.h"
151da177e4SLinus Torvalds #include "msgqueue.h"
161da177e4SLinus Torvalds
171da177e4SLinus Torvalds /* FAS register definitions */
181da177e4SLinus Torvalds
191da177e4SLinus Torvalds /* transfer count low */
201da177e4SLinus Torvalds #define REG_CTCL (0)
211da177e4SLinus Torvalds #define REG_STCL (0)
221da177e4SLinus Torvalds
231da177e4SLinus Torvalds /* transfer count medium */
241da177e4SLinus Torvalds #define REG_CTCM (1)
251da177e4SLinus Torvalds #define REG_STCM (1)
261da177e4SLinus Torvalds
271da177e4SLinus Torvalds /* fifo data */
281da177e4SLinus Torvalds #define REG_FF (2)
291da177e4SLinus Torvalds
301da177e4SLinus Torvalds /* command */
311da177e4SLinus Torvalds #define REG_CMD (3)
321da177e4SLinus Torvalds #define CMD_NOP 0x00
331da177e4SLinus Torvalds #define CMD_FLUSHFIFO 0x01
341da177e4SLinus Torvalds #define CMD_RESETCHIP 0x02
351da177e4SLinus Torvalds #define CMD_RESETSCSI 0x03
361da177e4SLinus Torvalds
371da177e4SLinus Torvalds #define CMD_TRANSFERINFO 0x10
381da177e4SLinus Torvalds #define CMD_INITCMDCOMPLETE 0x11
391da177e4SLinus Torvalds #define CMD_MSGACCEPTED 0x12
401da177e4SLinus Torvalds #define CMD_PADBYTES 0x18
411da177e4SLinus Torvalds #define CMD_SETATN 0x1a
421da177e4SLinus Torvalds #define CMD_RSETATN 0x1b
431da177e4SLinus Torvalds
441da177e4SLinus Torvalds #define CMD_SELECTWOATN 0x41
451da177e4SLinus Torvalds #define CMD_SELECTATN 0x42
461da177e4SLinus Torvalds #define CMD_SELECTATNSTOP 0x43
471da177e4SLinus Torvalds #define CMD_ENABLESEL 0x44
481da177e4SLinus Torvalds #define CMD_DISABLESEL 0x45
491da177e4SLinus Torvalds #define CMD_SELECTATN3 0x46
501da177e4SLinus Torvalds #define CMD_RESEL3 0x47
511da177e4SLinus Torvalds
521da177e4SLinus Torvalds #define CMD_WITHDMA 0x80
531da177e4SLinus Torvalds
541da177e4SLinus Torvalds /* status register (read) */
551da177e4SLinus Torvalds #define REG_STAT (4)
561da177e4SLinus Torvalds #define STAT_IO (1 << 0) /* IO phase */
571da177e4SLinus Torvalds #define STAT_CD (1 << 1) /* CD phase */
581da177e4SLinus Torvalds #define STAT_MSG (1 << 2) /* MSG phase */
591da177e4SLinus Torvalds #define STAT_TRANSFERDONE (1 << 3) /* Transfer completed */
601da177e4SLinus Torvalds #define STAT_TRANSFERCNTZ (1 << 4) /* Transfer counter is zero */
611da177e4SLinus Torvalds #define STAT_PARITYERROR (1 << 5) /* Parity error */
621da177e4SLinus Torvalds #define STAT_REALBAD (1 << 6) /* Something bad */
631da177e4SLinus Torvalds #define STAT_INT (1 << 7) /* Interrupt */
641da177e4SLinus Torvalds
651da177e4SLinus Torvalds #define STAT_BUSMASK (STAT_MSG|STAT_CD|STAT_IO)
661da177e4SLinus Torvalds #define STAT_DATAOUT (0) /* Data out */
671da177e4SLinus Torvalds #define STAT_DATAIN (STAT_IO) /* Data in */
681da177e4SLinus Torvalds #define STAT_COMMAND (STAT_CD) /* Command out */
691da177e4SLinus Torvalds #define STAT_STATUS (STAT_CD|STAT_IO) /* Status In */
701da177e4SLinus Torvalds #define STAT_MESGOUT (STAT_MSG|STAT_CD) /* Message out */
711da177e4SLinus Torvalds #define STAT_MESGIN (STAT_MSG|STAT_CD|STAT_IO) /* Message In */
721da177e4SLinus Torvalds
731da177e4SLinus Torvalds /* bus ID for select / reselect */
741da177e4SLinus Torvalds #define REG_SDID (4)
751da177e4SLinus Torvalds #define BUSID(target) ((target) & 7)
761da177e4SLinus Torvalds
771da177e4SLinus Torvalds /* Interrupt status register (read) */
781da177e4SLinus Torvalds #define REG_INST (5)
791da177e4SLinus Torvalds #define INST_SELWOATN (1 << 0) /* Select w/o ATN */
801da177e4SLinus Torvalds #define INST_SELATN (1 << 1) /* Select w/ATN */
811da177e4SLinus Torvalds #define INST_RESELECTED (1 << 2) /* Reselected */
821da177e4SLinus Torvalds #define INST_FUNCDONE (1 << 3) /* Function done */
831da177e4SLinus Torvalds #define INST_BUSSERVICE (1 << 4) /* Bus service */
841da177e4SLinus Torvalds #define INST_DISCONNECT (1 << 5) /* Disconnect */
851da177e4SLinus Torvalds #define INST_ILLEGALCMD (1 << 6) /* Illegal command */
861da177e4SLinus Torvalds #define INST_BUSRESET (1 << 7) /* SCSI Bus reset */
871da177e4SLinus Torvalds
881da177e4SLinus Torvalds /* Timeout register (write) */
891da177e4SLinus Torvalds #define REG_STIM (5)
901da177e4SLinus Torvalds
911da177e4SLinus Torvalds /* Sequence step register (read) */
921da177e4SLinus Torvalds #define REG_IS (6)
931da177e4SLinus Torvalds #define IS_BITS 0x07
941da177e4SLinus Torvalds #define IS_SELARB 0x00 /* Select & Arb ok */
951da177e4SLinus Torvalds #define IS_MSGBYTESENT 0x01 /* One byte message sent*/
961da177e4SLinus Torvalds #define IS_NOTCOMMAND 0x02 /* Not in command state */
971da177e4SLinus Torvalds #define IS_EARLYPHASE 0x03 /* Early phase change */
981da177e4SLinus Torvalds #define IS_COMPLETE 0x04 /* Command ok */
991da177e4SLinus Torvalds #define IS_SOF 0x08 /* Sync off flag */
1001da177e4SLinus Torvalds
1011da177e4SLinus Torvalds /* Transfer period step (write) */
1021da177e4SLinus Torvalds #define REG_STP (6)
1031da177e4SLinus Torvalds
1041da177e4SLinus Torvalds /* Synchronous Offset (write) */
1051da177e4SLinus Torvalds #define REG_SOF (7)
1061da177e4SLinus Torvalds
1071da177e4SLinus Torvalds /* Fifo state register (read) */
1081da177e4SLinus Torvalds #define REG_CFIS (7)
1091da177e4SLinus Torvalds #define CFIS_CF 0x1f /* Num bytes in FIFO */
1101da177e4SLinus Torvalds #define CFIS_IS 0xe0 /* Step */
1111da177e4SLinus Torvalds
1121da177e4SLinus Torvalds /* config register 1 */
1131da177e4SLinus Torvalds #define REG_CNTL1 (8)
1141da177e4SLinus Torvalds #define CNTL1_CID (7 << 0) /* Chip ID */
1151da177e4SLinus Torvalds #define CNTL1_STE (1 << 3) /* Self test enable */
1161da177e4SLinus Torvalds #define CNTL1_PERE (1 << 4) /* Parity enable reporting en. */
1171da177e4SLinus Torvalds #define CNTL1_PTE (1 << 5) /* Parity test enable */
1181da177e4SLinus Torvalds #define CNTL1_DISR (1 << 6) /* Disable Irq on SCSI reset */
1191da177e4SLinus Torvalds #define CNTL1_ETM (1 << 7) /* Extended Timing Mode */
1201da177e4SLinus Torvalds
1211da177e4SLinus Torvalds /* Clock conversion factor (read) */
1221da177e4SLinus Torvalds #define REG_CLKF (9)
1231da177e4SLinus Torvalds #define CLKF_F37MHZ 0x00 /* 35.01 - 40 MHz */
1241da177e4SLinus Torvalds #define CLKF_F10MHZ 0x02 /* 10 MHz */
1251da177e4SLinus Torvalds #define CLKF_F12MHZ 0x03 /* 10.01 - 15 MHz */
1261da177e4SLinus Torvalds #define CLKF_F17MHZ 0x04 /* 15.01 - 20 MHz */
1271da177e4SLinus Torvalds #define CLKF_F22MHZ 0x05 /* 20.01 - 25 MHz */
1281da177e4SLinus Torvalds #define CLKF_F27MHZ 0x06 /* 25.01 - 30 MHz */
1291da177e4SLinus Torvalds #define CLKF_F32MHZ 0x07 /* 30.01 - 35 MHz */
1301da177e4SLinus Torvalds
1311da177e4SLinus Torvalds /* Chip test register (write) */
1321da177e4SLinus Torvalds #define REG_FTM (10)
1331da177e4SLinus Torvalds #define TEST_FTM 0x01 /* Force target mode */
1341da177e4SLinus Torvalds #define TEST_FIM 0x02 /* Force initiator mode */
1351da177e4SLinus Torvalds #define TEST_FHI 0x04 /* Force high impedance mode */
1361da177e4SLinus Torvalds
1371da177e4SLinus Torvalds /* Configuration register 2 (read/write) */
1381da177e4SLinus Torvalds #define REG_CNTL2 (11)
1391da177e4SLinus Torvalds #define CNTL2_PGDP (1 << 0) /* Pass Th/Generate Data Parity */
1401da177e4SLinus Torvalds #define CNTL2_PGRP (1 << 1) /* Pass Th/Generate Reg Parity */
1411da177e4SLinus Torvalds #define CNTL2_ACDPE (1 << 2) /* Abort on Cmd/Data Parity Err */
1421da177e4SLinus Torvalds #define CNTL2_S2FE (1 << 3) /* SCSI2 Features Enable */
1431da177e4SLinus Torvalds #define CNTL2_TSDR (1 << 4) /* Tristate DREQ */
1441da177e4SLinus Torvalds #define CNTL2_SBO (1 << 5) /* Select Byte Order */
1451da177e4SLinus Torvalds #define CNTL2_ENF (1 << 6) /* Enable features */
1461da177e4SLinus Torvalds #define CNTL2_DAE (1 << 7) /* Data Alignment Enable */
1471da177e4SLinus Torvalds
1481da177e4SLinus Torvalds /* Configuration register 3 (read/write) */
1491da177e4SLinus Torvalds #define REG_CNTL3 (12)
1501da177e4SLinus Torvalds #define CNTL3_BS8 (1 << 0) /* Burst size 8 */
1511da177e4SLinus Torvalds #define CNTL3_MDM (1 << 1) /* Modify DMA mode */
1521da177e4SLinus Torvalds #define CNTL3_LBTM (1 << 2) /* Last Byte Transfer mode */
1531da177e4SLinus Torvalds #define CNTL3_FASTCLK (1 << 3) /* Fast SCSI clocking */
1541da177e4SLinus Torvalds #define CNTL3_FASTSCSI (1 << 4) /* Fast SCSI */
1551da177e4SLinus Torvalds #define CNTL3_G2CB (1 << 5) /* Group2 SCSI support */
1561da177e4SLinus Torvalds #define CNTL3_QTAG (1 << 6) /* Enable 3 byte msgs */
1571da177e4SLinus Torvalds #define CNTL3_ADIDCHK (1 << 7) /* Additional ID check */
1581da177e4SLinus Torvalds
1591da177e4SLinus Torvalds /* High transfer count (read/write) */
1601da177e4SLinus Torvalds #define REG_CTCH (14)
1611da177e4SLinus Torvalds #define REG_STCH (14)
1621da177e4SLinus Torvalds
1631da177e4SLinus Torvalds /* ID register (read only) */
1641da177e4SLinus Torvalds #define REG_ID (14)
1651da177e4SLinus Torvalds
1661da177e4SLinus Torvalds /* Data alignment */
1671da177e4SLinus Torvalds #define REG_DAL (15)
1681da177e4SLinus Torvalds
1691da177e4SLinus Torvalds typedef enum {
1701da177e4SLinus Torvalds PHASE_IDLE, /* we're not planning on doing anything */
1711da177e4SLinus Torvalds PHASE_SELECTION, /* selecting a device */
1721da177e4SLinus Torvalds PHASE_SELSTEPS, /* selection with command steps */
1731da177e4SLinus Torvalds PHASE_COMMAND, /* command sent */
1741da177e4SLinus Torvalds PHASE_MESSAGESENT, /* selected, and we're sending cmd */
1751da177e4SLinus Torvalds PHASE_DATAOUT, /* data out to device */
1761da177e4SLinus Torvalds PHASE_DATAIN, /* data in from device */
1771da177e4SLinus Torvalds PHASE_MSGIN, /* message in from device */
1781da177e4SLinus Torvalds PHASE_MSGIN_DISCONNECT, /* disconnecting from bus */
1791da177e4SLinus Torvalds PHASE_MSGOUT, /* after message out phase */
1801da177e4SLinus Torvalds PHASE_MSGOUT_EXPECT, /* expecting message out */
1811da177e4SLinus Torvalds PHASE_STATUS, /* status from device */
1821da177e4SLinus Torvalds PHASE_DONE /* Command complete */
1831da177e4SLinus Torvalds } phase_t;
1841da177e4SLinus Torvalds
1851da177e4SLinus Torvalds typedef enum {
1861da177e4SLinus Torvalds DMA_OUT, /* DMA from memory to chip */
1871da177e4SLinus Torvalds DMA_IN /* DMA from chip to memory */
1881da177e4SLinus Torvalds } fasdmadir_t;
1891da177e4SLinus Torvalds
1901da177e4SLinus Torvalds typedef enum {
1911da177e4SLinus Torvalds fasdma_none, /* No dma */
1921da177e4SLinus Torvalds fasdma_pio, /* PIO mode */
1931da177e4SLinus Torvalds fasdma_pseudo, /* Pseudo DMA */
1941da177e4SLinus Torvalds fasdma_real_block, /* Real DMA, on block by block basis */
1951da177e4SLinus Torvalds fasdma_real_all /* Real DMA, on request by request */
1961da177e4SLinus Torvalds } fasdmatype_t;
1971da177e4SLinus Torvalds
1981da177e4SLinus Torvalds typedef enum {
19925985edcSLucas De Marchi neg_wait, /* Negotiate with device */
20025985edcSLucas De Marchi neg_inprogress, /* Negotiation sent */
20125985edcSLucas De Marchi neg_complete, /* Negotiation complete */
20225985edcSLucas De Marchi neg_targcomplete, /* Target completed negotiation */
20325985edcSLucas De Marchi neg_invalid /* Negotiation not supported */
2041da177e4SLinus Torvalds } neg_t;
2051da177e4SLinus Torvalds
2061da177e4SLinus Torvalds #define MAGIC 0x441296bdUL
2071da177e4SLinus Torvalds #define NR_MSGS 8
2081da177e4SLinus Torvalds
2091da177e4SLinus Torvalds #define FASCAP_DMA (1 << 0)
2101da177e4SLinus Torvalds #define FASCAP_PSEUDODMA (1 << 1)
2111da177e4SLinus Torvalds
2121da177e4SLinus Torvalds typedef struct {
2131da177e4SLinus Torvalds unsigned long magic_start;
2141da177e4SLinus Torvalds spinlock_t host_lock;
2151da177e4SLinus Torvalds struct Scsi_Host *host; /* host */
216ee0ca6baSHenne struct scsi_cmnd *SCpnt; /* currently processing command */
217ee0ca6baSHenne struct scsi_cmnd *origSCpnt; /* original connecting command */
218ee0ca6baSHenne struct scsi_cmnd *reqSCpnt; /* request sense command */
219ee0ca6baSHenne struct scsi_cmnd *rstSCpnt; /* reset command */
220ee0ca6baSHenne struct scsi_cmnd *pending_SCpnt[8]; /* per-device pending commands */
2211da177e4SLinus Torvalds int next_pending; /* next pending device */
2221da177e4SLinus Torvalds
2231da177e4SLinus Torvalds /*
2241da177e4SLinus Torvalds * Error recovery
2251da177e4SLinus Torvalds */
2261da177e4SLinus Torvalds wait_queue_head_t eh_wait;
2271da177e4SLinus Torvalds struct timer_list eh_timer;
2281da177e4SLinus Torvalds unsigned int rst_dev_status;
2291da177e4SLinus Torvalds unsigned int rst_bus_status;
2301da177e4SLinus Torvalds
2311da177e4SLinus Torvalds /* driver information */
2321da177e4SLinus Torvalds struct {
2331da177e4SLinus Torvalds phase_t phase; /* current phase */
2341da177e4SLinus Torvalds void __iomem *io_base; /* iomem base of FAS216 */
2351da177e4SLinus Torvalds unsigned int io_shift; /* shift to adjust reg offsets by */
2361da177e4SLinus Torvalds unsigned char cfg[4]; /* configuration registers */
2371da177e4SLinus Torvalds const char *type; /* chip type */
2381da177e4SLinus Torvalds unsigned int irq; /* interrupt */
2391da177e4SLinus Torvalds int dma; /* dma channel */
2401da177e4SLinus Torvalds
2410a04137eSChristoph Hellwig struct scsi_pointer SCp; /* current commands data pointer */
2421da177e4SLinus Torvalds
2431da177e4SLinus Torvalds MsgQueue_t msgs; /* message queue for connected device */
2441da177e4SLinus Torvalds
2451da177e4SLinus Torvalds unsigned int async_stp; /* Async transfer STP value */
2461da177e4SLinus Torvalds unsigned char msgin_fifo; /* bytes in fifo at time of message in */
2471da177e4SLinus Torvalds unsigned char message[256]; /* last message received from device */
2481da177e4SLinus Torvalds
2491da177e4SLinus Torvalds unsigned char disconnectable:1; /* this command can be disconnected */
2501da177e4SLinus Torvalds unsigned char aborting:1; /* aborting command */
2511da177e4SLinus Torvalds } scsi;
2521da177e4SLinus Torvalds
2531da177e4SLinus Torvalds /* statistics information */
2541da177e4SLinus Torvalds struct {
2551da177e4SLinus Torvalds unsigned int queues;
2561da177e4SLinus Torvalds unsigned int removes;
2571da177e4SLinus Torvalds unsigned int fins;
2581da177e4SLinus Torvalds unsigned int reads;
2591da177e4SLinus Torvalds unsigned int writes;
2601da177e4SLinus Torvalds unsigned int miscs;
2611da177e4SLinus Torvalds unsigned int disconnects;
2621da177e4SLinus Torvalds unsigned int aborts;
2631da177e4SLinus Torvalds unsigned int bus_resets;
2641da177e4SLinus Torvalds unsigned int host_resets;
2651da177e4SLinus Torvalds } stats;
2661da177e4SLinus Torvalds
2671da177e4SLinus Torvalds /* configuration information */
2681da177e4SLinus Torvalds struct {
2691da177e4SLinus Torvalds unsigned char clockrate; /* clock rate of FAS device (MHz) */
2701da177e4SLinus Torvalds unsigned char select_timeout; /* timeout (R5) */
2711da177e4SLinus Torvalds unsigned char sync_max_depth; /* Synchronous xfer max fifo depth */
2721da177e4SLinus Torvalds unsigned char wide_max_size; /* Maximum wide transfer size */
2731da177e4SLinus Torvalds unsigned char cntl3; /* Control Reg 3 */
2741da177e4SLinus Torvalds unsigned int asyncperiod; /* Async transfer period (ns) */
2751da177e4SLinus Torvalds unsigned int capabilities; /* driver capabilities */
2761da177e4SLinus Torvalds unsigned int disconnect_ok:1; /* Disconnects allowed? */
2771da177e4SLinus Torvalds } ifcfg;
2781da177e4SLinus Torvalds
2791da177e4SLinus Torvalds /* queue handling */
2801da177e4SLinus Torvalds struct {
2811da177e4SLinus Torvalds Queue_t issue; /* issue queue */
2821da177e4SLinus Torvalds Queue_t disconnected; /* disconnected command queue */
2831da177e4SLinus Torvalds } queues;
2841da177e4SLinus Torvalds
2851da177e4SLinus Torvalds /* per-device info */
2861da177e4SLinus Torvalds struct fas216_device {
2871da177e4SLinus Torvalds unsigned char disconnect_ok:1; /* device can disconnect */
2881da177e4SLinus Torvalds unsigned char parity_enabled:1; /* parity checking enabled */
2891da177e4SLinus Torvalds unsigned char parity_check:1; /* need to check parity checking */
2901da177e4SLinus Torvalds unsigned char period; /* sync xfer period in (*4ns) */
2911da177e4SLinus Torvalds unsigned char stp; /* synchronous transfer period */
2921da177e4SLinus Torvalds unsigned char sof; /* synchronous offset register */
2931da177e4SLinus Torvalds unsigned char wide_xfer; /* currently negociated wide transfer */
2941da177e4SLinus Torvalds neg_t sync_state; /* synchronous transfer mode */
2951da177e4SLinus Torvalds neg_t wide_state; /* wide transfer mode */
2961da177e4SLinus Torvalds } device[8];
2971da177e4SLinus Torvalds unsigned long busyluns[64/sizeof(unsigned long)];/* array of bits indicating LUNs busy */
2981da177e4SLinus Torvalds
2991da177e4SLinus Torvalds /* dma */
3001da177e4SLinus Torvalds struct {
3011da177e4SLinus Torvalds fasdmatype_t transfer_type; /* current type of DMA transfer */
3020a04137eSChristoph Hellwig fasdmatype_t (*setup) (struct Scsi_Host *host, struct scsi_pointer *SCp, fasdmadir_t direction, fasdmatype_t min_dma);
3030a04137eSChristoph Hellwig void (*pseudo)(struct Scsi_Host *host, struct scsi_pointer *SCp, fasdmadir_t direction, int transfer);
3040a04137eSChristoph Hellwig void (*stop) (struct Scsi_Host *host, struct scsi_pointer *SCp);
3051da177e4SLinus Torvalds } dma;
3061da177e4SLinus Torvalds
3071da177e4SLinus Torvalds /* miscellaneous */
3081da177e4SLinus Torvalds int internal_done; /* flag to indicate request done */
3090e935c9eSJames Bottomley struct scsi_eh_save ses; /* holds request sense restore info */
3101da177e4SLinus Torvalds unsigned long magic_end;
3111da177e4SLinus Torvalds } FAS216_Info;
3121da177e4SLinus Torvalds
313caffd3adSBart Van Assche /* driver-private data per SCSI command. */
314caffd3adSBart Van Assche struct fas216_cmd_priv {
315*dc417545SBart Van Assche /*
316*dc417545SBart Van Assche * @scsi_pointer must be the first member. See also arm_scsi_pointer().
317*dc417545SBart Van Assche */
318*dc417545SBart Van Assche struct scsi_pointer scsi_pointer;
319caffd3adSBart Van Assche void (*scsi_done)(struct scsi_cmnd *cmd);
320caffd3adSBart Van Assche };
321caffd3adSBart Van Assche
fas216_cmd_priv(struct scsi_cmnd * cmd)322caffd3adSBart Van Assche static inline struct fas216_cmd_priv *fas216_cmd_priv(struct scsi_cmnd *cmd)
323caffd3adSBart Van Assche {
324caffd3adSBart Van Assche return scsi_cmd_priv(cmd);
325caffd3adSBart Van Assche }
326caffd3adSBart Van Assche
3271da177e4SLinus Torvalds /* Function: int fas216_init (struct Scsi_Host *instance)
3281da177e4SLinus Torvalds * Purpose : initialise FAS/NCR/AMD SCSI structures.
3291da177e4SLinus Torvalds * Params : instance - a driver-specific filled-out structure
3301da177e4SLinus Torvalds * Returns : 0 on success
3311da177e4SLinus Torvalds */
3321da177e4SLinus Torvalds extern int fas216_init (struct Scsi_Host *instance);
3331da177e4SLinus Torvalds
3341da177e4SLinus Torvalds /* Function: int fas216_add (struct Scsi_Host *instance, struct device *dev)
3351da177e4SLinus Torvalds * Purpose : initialise FAS/NCR/AMD SCSI ic.
3361da177e4SLinus Torvalds * Params : instance - a driver-specific filled-out structure
3371da177e4SLinus Torvalds * Returns : 0 on success
3381da177e4SLinus Torvalds */
3391da177e4SLinus Torvalds extern int fas216_add (struct Scsi_Host *instance, struct device *dev);
3401da177e4SLinus Torvalds
341f281233dSJeff Garzik /* Function: int fas216_queue_command(struct Scsi_Host *h, struct scsi_cmnd *SCpnt)
3421da177e4SLinus Torvalds * Purpose : queue a command for adapter to process.
343f281233dSJeff Garzik * Params : h - host adapter
344f281233dSJeff Garzik * : SCpnt - Command to queue
3451da177e4SLinus Torvalds * Returns : 0 - success, else error
3461da177e4SLinus Torvalds */
347f281233dSJeff Garzik extern int fas216_queue_command(struct Scsi_Host *h, struct scsi_cmnd *SCpnt);
3481da177e4SLinus Torvalds
349f281233dSJeff Garzik /* Function: int fas216_noqueue_command(struct Scsi_Host *h, struct scsi_cmnd *SCpnt)
3501da177e4SLinus Torvalds * Purpose : queue a command for adapter to process, and process it to completion.
351f281233dSJeff Garzik * Params : h - host adapter
352f281233dSJeff Garzik * : SCpnt - Command to queue
3531da177e4SLinus Torvalds * Returns : 0 - success, else error
3541da177e4SLinus Torvalds */
3555d61b718SRussell King extern int fas216_noqueue_command(struct Scsi_Host *, struct scsi_cmnd *);
3561da177e4SLinus Torvalds
3571da177e4SLinus Torvalds /* Function: irqreturn_t fas216_intr (FAS216_Info *info)
3581da177e4SLinus Torvalds * Purpose : handle interrupts from the interface to progress a command
3591da177e4SLinus Torvalds * Params : info - interface to service
3601da177e4SLinus Torvalds */
3611da177e4SLinus Torvalds extern irqreturn_t fas216_intr (FAS216_Info *info);
3621da177e4SLinus Torvalds
3631da177e4SLinus Torvalds extern void fas216_remove (struct Scsi_Host *instance);
3641da177e4SLinus Torvalds
3651da177e4SLinus Torvalds /* Function: void fas216_release (struct Scsi_Host *instance)
3661da177e4SLinus Torvalds * Purpose : release all resources and put everything to bed for FAS/NCR/AMD SCSI ic.
3671da177e4SLinus Torvalds * Params : instance - a driver-specific filled-out structure
3681da177e4SLinus Torvalds * Returns : 0 on success
3691da177e4SLinus Torvalds */
3701da177e4SLinus Torvalds extern void fas216_release (struct Scsi_Host *instance);
3711da177e4SLinus Torvalds
3729d4e5c54SAl Viro extern void fas216_print_host(FAS216_Info *info, struct seq_file *m);
3739d4e5c54SAl Viro extern void fas216_print_stats(FAS216_Info *info, struct seq_file *m);
3749d4e5c54SAl Viro extern void fas216_print_devices(FAS216_Info *info, struct seq_file *m);
3751da177e4SLinus Torvalds
376ee0ca6baSHenne /* Function: int fas216_eh_abort(struct scsi_cmnd *SCpnt)
3771da177e4SLinus Torvalds * Purpose : abort this command
3781da177e4SLinus Torvalds * Params : SCpnt - command to abort
3791da177e4SLinus Torvalds * Returns : FAILED if unable to abort
3801da177e4SLinus Torvalds */
381ee0ca6baSHenne extern int fas216_eh_abort(struct scsi_cmnd *SCpnt);
3821da177e4SLinus Torvalds
383ee0ca6baSHenne /* Function: int fas216_eh_device_reset(struct scsi_cmnd *SCpnt)
3841da177e4SLinus Torvalds * Purpose : Reset the device associated with this command
3851da177e4SLinus Torvalds * Params : SCpnt - command specifing device to reset
3861da177e4SLinus Torvalds * Returns : FAILED if unable to reset
3871da177e4SLinus Torvalds */
388ee0ca6baSHenne extern int fas216_eh_device_reset(struct scsi_cmnd *SCpnt);
3891da177e4SLinus Torvalds
390ee0ca6baSHenne /* Function: int fas216_eh_bus_reset(struct scsi_cmnd *SCpnt)
3911da177e4SLinus Torvalds * Purpose : Reset the complete bus associated with this command
3921da177e4SLinus Torvalds * Params : SCpnt - command specifing bus to reset
3931da177e4SLinus Torvalds * Returns : FAILED if unable to reset
3941da177e4SLinus Torvalds */
395ee0ca6baSHenne extern int fas216_eh_bus_reset(struct scsi_cmnd *SCpnt);
3961da177e4SLinus Torvalds
397ee0ca6baSHenne /* Function: int fas216_eh_host_reset(struct scsi_cmnd *SCpnt)
3981da177e4SLinus Torvalds * Purpose : Reset the host associated with this command
3991da177e4SLinus Torvalds * Params : SCpnt - command specifing host to reset
4001da177e4SLinus Torvalds * Returns : FAILED if unable to reset
4011da177e4SLinus Torvalds */
402ee0ca6baSHenne extern int fas216_eh_host_reset(struct scsi_cmnd *SCpnt);
4031da177e4SLinus Torvalds
4041da177e4SLinus Torvalds #endif /* FAS216_H */
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