[linux.git] / drivers / scsi / aha152x.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _AHA152X_H
#define _AHA152X_H

/*
 * $Id: aha152x.h,v 2.7 2004/01/24 11:39:03 fischer Exp $
 */

/* number of queueable commands
   (unless we support more than 1 cmd_per_lun this should do) */
#define AHA152X_MAXQUEUE 7

#define AHA152X_REVID "Adaptec 152x SCSI driver; $Revision: 2.7 $"

/* port addresses */
#define SCSISEQ      (HOSTIOPORT0+0x00)    /* SCSI sequence control */
#define SXFRCTL0     (HOSTIOPORT0+0x01)    /* SCSI transfer control 0 */
#define SXFRCTL1     (HOSTIOPORT0+0x02)    /* SCSI transfer control 1 */
#define SCSISIG      (HOSTIOPORT0+0x03)    /* SCSI signal in/out */
#define SCSIRATE     (HOSTIOPORT0+0x04)    /* SCSI rate control */
#define SELID        (HOSTIOPORT0+0x05)    /* selection/reselection ID */
#define SCSIID       SELID                 /* SCSI ID */
#define SCSIDAT      (HOSTIOPORT0+0x06)    /* SCSI latched data */
#define SCSIBUS      (HOSTIOPORT0+0x07)    /* SCSI data bus */
#define STCNT0       (HOSTIOPORT0+0x08)    /* SCSI transfer count 0 */
#define STCNT1       (HOSTIOPORT0+0x09)    /* SCSI transfer count 1 */
#define STCNT2       (HOSTIOPORT0+0x0a)    /* SCSI transfer count 2 */
#define SSTAT0       (HOSTIOPORT0+0x0b)    /* SCSI interrupt status 0 */
#define SSTAT1       (HOSTIOPORT0+0x0c)    /* SCSI interrupt status 1 */
#define SSTAT2       (HOSTIOPORT0+0x0d)    /* SCSI interrupt status 2 */
#define SCSITEST     (HOSTIOPORT0+0x0e)    /* SCSI test control */
#define SSTAT3       SCSITEST              /* SCSI interrupt status 3 */
#define SSTAT4       (HOSTIOPORT0+0x0f)    /* SCSI status 4 */
#define SIMODE0      (HOSTIOPORT1+0x10)    /* SCSI interrupt mode 0 */
#define SIMODE1      (HOSTIOPORT1+0x11)    /* SCSI interrupt mode 1 */
#define DMACNTRL0    (HOSTIOPORT1+0x12)    /* DMA control 0 */
#define DMACNTRL1    (HOSTIOPORT1+0x13)    /* DMA control 1 */
#define DMASTAT      (HOSTIOPORT1+0x14)    /* DMA status */
#define FIFOSTAT     (HOSTIOPORT1+0x15)    /* FIFO status */
#define DATAPORT     (HOSTIOPORT1+0x16)    /* DATA port */
#define BRSTCNTRL    (HOSTIOPORT1+0x18)    /* burst control */
#define PORTA        (HOSTIOPORT1+0x1a)    /* PORT A */
#define PORTB        (HOSTIOPORT1+0x1b)    /* PORT B */
#define REV          (HOSTIOPORT1+0x1c)    /* revision */
#define STACK        (HOSTIOPORT1+0x1d)    /* stack */
#define TEST         (HOSTIOPORT1+0x1e)    /* test register */

#define IO_RANGE        0x20

/* used in aha152x_porttest */
#define O_PORTA         0x1a               /* PORT A */
#define O_PORTB         0x1b               /* PORT B */
#define O_DMACNTRL1     0x13               /* DMA control 1 */
#define O_STACK         0x1d               /* stack */

/* used in tc1550_porttest */
#define O_TC_PORTA      0x0a               /* PORT A */
#define O_TC_PORTB      0x0b               /* PORT B */
#define O_TC_DMACNTRL1  0x03               /* DMA control 1 */
#define O_TC_STACK      0x0d               /* stack */

/* bits and bitmasks to ports */

/* SCSI sequence control */
#define TEMODEO      0x80
#define ENSELO       0x40
#define ENSELI       0x20
#define ENRESELI     0x10
#define ENAUTOATNO   0x08
#define ENAUTOATNI   0x04
#define ENAUTOATNP   0x02
#define SCSIRSTO     0x01

/* SCSI transfer control 0 */
#define SCSIEN       0x80
#define DMAEN        0x40
#define CH1          0x20
#define CLRSTCNT     0x10
#define SPIOEN       0x08
#define CLRCH1       0x02

/* SCSI transfer control 1 */
#define BITBUCKET    0x80
#define SWRAPEN      0x40
#define ENSPCHK      0x20
#define STIMESEL     0x18    /* mask */
#define STIMESEL_    3
#define ENSTIMER     0x04
#define BYTEALIGN    0x02

/* SCSI signal IN */
#define SIG_CDI          0x80
#define SIG_IOI          0x40
#define SIG_MSGI         0x20
#define SIG_ATNI         0x10
#define SIG_SELI         0x08
#define SIG_BSYI         0x04
#define SIG_REQI         0x02
#define SIG_ACKI         0x01

/* SCSI Phases */
#define P_MASK       (SIG_MSGI|SIG_CDI|SIG_IOI)
#define P_DATAO      (0)
#define P_DATAI      (SIG_IOI)
#define P_CMD        (SIG_CDI)
#define P_STATUS     (SIG_CDI|SIG_IOI)
#define P_MSGO       (SIG_MSGI|SIG_CDI)
#define P_MSGI       (SIG_MSGI|SIG_CDI|SIG_IOI)

/* SCSI signal OUT */
#define SIG_CDO          0x80
#define SIG_IOO          0x40
#define SIG_MSGO         0x20
#define SIG_ATNO         0x10
#define SIG_SELO         0x08
#define SIG_BSYO         0x04
#define SIG_REQO         0x02
#define SIG_ACKO         0x01

/* SCSI rate control */
#define SXFR         0x70    /* mask */
#define SXFR_        4
#define SOFS         0x0f    /* mask */

/* SCSI ID */
#define OID          0x70
#define OID_         4
#define TID          0x07

/* SCSI transfer count */
#define GETSTCNT() ( (GETPORT(STCNT2)<<16) \
                   + (GETPORT(STCNT1)<< 8) \
                   + GETPORT(STCNT0) )

#define SETSTCNT(X) { SETPORT(STCNT2, ((X) & 0xFF0000) >> 16); \
                      SETPORT(STCNT1, ((X) & 0x00FF00) >>  8); \
                      SETPORT(STCNT0, ((X) & 0x0000FF) ); }

/* SCSI interrupt status */
#define TARGET       0x80
#define SELDO        0x40
#define SELDI        0x20
#define SELINGO      0x10
#define SWRAP        0x08
#define SDONE        0x04
#define SPIORDY      0x02
#define DMADONE      0x01

#define SETSDONE     0x80
#define CLRSELDO     0x40
#define CLRSELDI     0x20
#define CLRSELINGO   0x10
#define CLRSWRAP     0x08
#define CLRSDONE     0x04
#define CLRSPIORDY   0x02
#define CLRDMADONE   0x01

/* SCSI status 1 */
#define SELTO        0x80
#define ATNTARG      0x40
#define SCSIRSTI     0x20
#define PHASEMIS     0x10
#define BUSFREE      0x08
#define SCSIPERR     0x04
#define PHASECHG     0x02
#define REQINIT      0x01

#define CLRSELTIMO   0x80
#define CLRATNO      0x40
#define CLRSCSIRSTI  0x20
#define CLRBUSFREE   0x08
#define CLRSCSIPERR  0x04
#define CLRPHASECHG  0x02
#define CLRREQINIT   0x01

/* SCSI status 2 */
#define SOFFSET      0x20
#define SEMPTY       0x10
#define SFULL        0x08
#define SFCNT        0x07    /* mask */

/* SCSI status 3 */
#define SCSICNT      0xf0    /* mask */
#define SCSICNT_     4
#define OFFCNT       0x0f    /* mask */

/* SCSI TEST control */
#define SCTESTU      0x08
#define SCTESTD      0x04
#define STCTEST      0x01

/* SCSI status 4 */
#define SYNCERR      0x04
#define FWERR        0x02
#define FRERR        0x01

#define CLRSYNCERR   0x04
#define CLRFWERR     0x02
#define CLRFRERR     0x01

/* SCSI interrupt mode 0 */
#define ENSELDO      0x40
#define ENSELDI      0x20
#define ENSELINGO    0x10
#define ENSWRAP      0x08
#define ENSDONE      0x04
#define ENSPIORDY    0x02
#define ENDMADONE    0x01

/* SCSI interrupt mode 1 */
#define ENSELTIMO    0x80
#define ENATNTARG    0x40
#define ENSCSIRST    0x20
#define ENPHASEMIS   0x10
#define ENBUSFREE    0x08
#define ENSCSIPERR   0x04
#define ENPHASECHG   0x02
#define ENREQINIT    0x01

/* DMA control 0 */
#define ENDMA        0x80
#define _8BIT        0x40
#define DMA          0x20
#define WRITE_READ   0x08
#define INTEN        0x04
#define RSTFIFO      0x02
#define SWINT        0x01

/* DMA control 1 */
#define PWRDWN       0x80
#define STK          0x07    /* mask */

/* DMA status */
#define ATDONE       0x80
#define WORDRDY      0x40
#define INTSTAT      0x20
#define DFIFOFULL    0x10
#define DFIFOEMP     0x08

/* BURST control */
#define BON          0xf0
#define BOFF         0x0f

/* TEST REGISTER */
#define BOFFTMR      0x40
#define BONTMR       0x20
#define STCNTH       0x10
#define STCNTM       0x08
#define STCNTL       0x04
#define SCSIBLK      0x02
#define DMABLK       0x01

/* On the AHA-152x board PORTA and PORTB contain
   some information about the board's configuration. */
typedef union {
  struct {
    unsigned reserved:2;    /* reserved */
    unsigned tardisc:1;     /* Target disconnect: 0=disabled, 1=enabled */
    unsigned syncneg:1;     /* Initial sync neg: 0=disabled, 1=enabled */
    unsigned msgclasses:2;  /* Message classes
                                 0=#4
                                 1=#0, #1, #2, #3, #4
                                 2=#0, #3, #4
                                 3=#0, #4
                             */
    unsigned boot:1;        /* boot: 0=disabled, 1=enabled */
    unsigned dma:1;         /* Transfer mode: 0=PIO; 1=DMA */
    unsigned id:3;          /* SCSI-id */
    unsigned irq:2;         /* IRQ-Channel: 0,3=12, 1=10, 2=11 */
    unsigned dmachan:2;     /* DMA-Channel: 0=0, 1=5, 2=6, 3=7 */
    unsigned parity:1;      /* SCSI-parity: 1=enabled 0=disabled */
  } fields;
  unsigned short port;
} aha152x_config ;

#define cf_parity     fields.parity
#define cf_dmachan    fields.dmachan
#define cf_irq        fields.irq
#define cf_id         fields.id
#define cf_dma        fields.dma
#define cf_boot       fields.boot
#define cf_msgclasses fields.msgclasses
#define cf_syncneg    fields.syncneg
#define cf_tardisc    fields.tardisc
#define cf_port       port

/* Some macros to manipulate ports and their bits */

#define SETPORT(PORT, VAL)	outb( (VAL), (PORT) )
#define GETPORT(PORT)		inb( PORT )
#define SETBITS(PORT, BITS)	outb( (inb(PORT) | (BITS)), (PORT) )
#define CLRBITS(PORT, BITS)	outb( (inb(PORT) & ~(BITS)), (PORT) )
#define TESTHI(PORT, BITS)	((inb(PORT) & (BITS)) == (BITS))
#define TESTLO(PORT, BITS)	((inb(PORT) & (BITS)) == 0)

#define SETRATE(RATE)		SETPORT(SCSIRATE,(RATE) & 0x7f)

#if defined(AHA152X_DEBUG)
enum {
  debug_procinfo  = 0x0001,
  debug_queue     = 0x0002,
  debug_locking   = 0x0004,
  debug_intr      = 0x0008,
  debug_selection = 0x0010,
  debug_msgo      = 0x0020,
  debug_msgi      = 0x0040,
  debug_status    = 0x0080,
  debug_cmd       = 0x0100,
  debug_datai     = 0x0200,
  debug_datao     = 0x0400,
  debug_eh	  = 0x0800,
  debug_done      = 0x1000,
  debug_phases    = 0x2000,
};
#endif

/* for the pcmcia stub */
struct aha152x_setup {
	int io_port;
	int irq;
	int scsiid;
	int reconnect;
	int parity;
	int synchronous;
	int delay;
	int ext_trans;
	int tc1550;
#if defined(AHA152X_DEBUG)
	int debug;
#endif
	char *conf;
};

struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *);
void aha152x_release(struct Scsi_Host *);
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _AHA152X_H
	3	#define _AHA152X_H
	4
	5	/*
	6	* $Id: aha152x.h,v 2.7 2004/01/24 11:39:03 fischer Exp $
	7	*/
	8
	9	/* number of queueable commands
	10	(unless we support more than 1 cmd_per_lun this should do) */
	11	#define AHA152X_MAXQUEUE 7
	12
	13	#define AHA152X_REVID "Adaptec 152x SCSI driver; $Revision: 2.7 $"
	14
	15	/* port addresses */
	16	#define SCSISEQ (HOSTIOPORT0+0x00) /* SCSI sequence control */
	17	#define SXFRCTL0 (HOSTIOPORT0+0x01) /* SCSI transfer control 0 */
	18	#define SXFRCTL1 (HOSTIOPORT0+0x02) /* SCSI transfer control 1 */
	19	#define SCSISIG (HOSTIOPORT0+0x03) /* SCSI signal in/out */
	20	#define SCSIRATE (HOSTIOPORT0+0x04) /* SCSI rate control */
	21	#define SELID (HOSTIOPORT0+0x05) /* selection/reselection ID */
	22	#define SCSIID SELID /* SCSI ID */
	23	#define SCSIDAT (HOSTIOPORT0+0x06) /* SCSI latched data */
	24	#define SCSIBUS (HOSTIOPORT0+0x07) /* SCSI data bus */
	25	#define STCNT0 (HOSTIOPORT0+0x08) /* SCSI transfer count 0 */
	26	#define STCNT1 (HOSTIOPORT0+0x09) /* SCSI transfer count 1 */
	27	#define STCNT2 (HOSTIOPORT0+0x0a) /* SCSI transfer count 2 */
	28	#define SSTAT0 (HOSTIOPORT0+0x0b) /* SCSI interrupt status 0 */
	29	#define SSTAT1 (HOSTIOPORT0+0x0c) /* SCSI interrupt status 1 */
	30	#define SSTAT2 (HOSTIOPORT0+0x0d) /* SCSI interrupt status 2 */
	31	#define SCSITEST (HOSTIOPORT0+0x0e) /* SCSI test control */
	32	#define SSTAT3 SCSITEST /* SCSI interrupt status 3 */
	33	#define SSTAT4 (HOSTIOPORT0+0x0f) /* SCSI status 4 */
	34	#define SIMODE0 (HOSTIOPORT1+0x10) /* SCSI interrupt mode 0 */
	35	#define SIMODE1 (HOSTIOPORT1+0x11) /* SCSI interrupt mode 1 */
	36	#define DMACNTRL0 (HOSTIOPORT1+0x12) /* DMA control 0 */
	37	#define DMACNTRL1 (HOSTIOPORT1+0x13) /* DMA control 1 */
	38	#define DMASTAT (HOSTIOPORT1+0x14) /* DMA status */
	39	#define FIFOSTAT (HOSTIOPORT1+0x15) /* FIFO status */
	40	#define DATAPORT (HOSTIOPORT1+0x16) /* DATA port */
	41	#define BRSTCNTRL (HOSTIOPORT1+0x18) /* burst control */
	42	#define PORTA (HOSTIOPORT1+0x1a) /* PORT A */
	43	#define PORTB (HOSTIOPORT1+0x1b) /* PORT B */
	44	#define REV (HOSTIOPORT1+0x1c) /* revision */
	45	#define STACK (HOSTIOPORT1+0x1d) /* stack */
	46	#define TEST (HOSTIOPORT1+0x1e) /* test register */
	47
	48	#define IO_RANGE 0x20
	49
	50	/* used in aha152x_porttest */
	51	#define O_PORTA 0x1a /* PORT A */
	52	#define O_PORTB 0x1b /* PORT B */
	53	#define O_DMACNTRL1 0x13 /* DMA control 1 */
	54	#define O_STACK 0x1d /* stack */
	55
	56	/* used in tc1550_porttest */
	57	#define O_TC_PORTA 0x0a /* PORT A */
	58	#define O_TC_PORTB 0x0b /* PORT B */
	59	#define O_TC_DMACNTRL1 0x03 /* DMA control 1 */
	60	#define O_TC_STACK 0x0d /* stack */
	61
	62	/* bits and bitmasks to ports */
	63
	64	/* SCSI sequence control */
	65	#define TEMODEO 0x80
66	#define ENSELO 0x40
67	#define ENSELI 0x20
68	#define ENRESELI 0x10
69	#define ENAUTOATNO 0x08
70	#define ENAUTOATNI 0x04
71	#define ENAUTOATNP 0x02
72	#define SCSIRSTO 0x01
73
74	/* SCSI transfer control 0 */
75	#define SCSIEN 0x80
76	#define DMAEN 0x40
77	#define CH1 0x20
78	#define CLRSTCNT 0x10
79	#define SPIOEN 0x08
80	#define CLRCH1 0x02
81
82	/* SCSI transfer control 1 */
83	#define BITBUCKET 0x80
84	#define SWRAPEN 0x40
85	#define ENSPCHK 0x20
86	#define STIMESEL 0x18 /* mask */
87	#define STIMESEL_ 3
88	#define ENSTIMER 0x04
89	#define BYTEALIGN 0x02
90
91	/* SCSI signal IN */
92	#define SIG_CDI 0x80
93	#define SIG_IOI 0x40
94	#define SIG_MSGI 0x20
95	#define SIG_ATNI 0x10
96	#define SIG_SELI 0x08
97	#define SIG_BSYI 0x04
98	#define SIG_REQI 0x02
99	#define SIG_ACKI 0x01
100
101	/* SCSI Phases */
102	#define P_MASK (SIG_MSGI\|SIG_CDI\|SIG_IOI)
103	#define P_DATAO (0)
104	#define P_DATAI (SIG_IOI)
105	#define P_CMD (SIG_CDI)
106	#define P_STATUS (SIG_CDI\|SIG_IOI)
107	#define P_MSGO (SIG_MSGI\|SIG_CDI)
108	#define P_MSGI (SIG_MSGI\|SIG_CDI\|SIG_IOI)
109
110	/* SCSI signal OUT */
111	#define SIG_CDO 0x80
112	#define SIG_IOO 0x40
113	#define SIG_MSGO 0x20
114	#define SIG_ATNO 0x10
115	#define SIG_SELO 0x08
116	#define SIG_BSYO 0x04
117	#define SIG_REQO 0x02
118	#define SIG_ACKO 0x01
119
120	/* SCSI rate control */
121	#define SXFR 0x70 /* mask */
122	#define SXFR_ 4
123	#define SOFS 0x0f /* mask */
124
125	/* SCSI ID */
126	#define OID 0x70
127	#define OID_ 4
128	#define TID 0x07
129
130	/* SCSI transfer count */
131	#define GETSTCNT() ( (GETPORT(STCNT2)<<16) \
132	+ (GETPORT(STCNT1)<< 8) \
133	+ GETPORT(STCNT0) )
134
135	#define SETSTCNT(X) { SETPORT(STCNT2, ((X) & 0xFF0000) >> 16); \
136	SETPORT(STCNT1, ((X) & 0x00FF00) >> 8); \
137	SETPORT(STCNT0, ((X) & 0x0000FF) ); }
138
139	/* SCSI interrupt status */
140	#define TARGET 0x80
141	#define SELDO 0x40
142	#define SELDI 0x20
143	#define SELINGO 0x10
144	#define SWRAP 0x08
145	#define SDONE 0x04
146	#define SPIORDY 0x02
147	#define DMADONE 0x01
148
149	#define SETSDONE 0x80
150	#define CLRSELDO 0x40
151	#define CLRSELDI 0x20
152	#define CLRSELINGO 0x10
153	#define CLRSWRAP 0x08
154	#define CLRSDONE 0x04
155	#define CLRSPIORDY 0x02
156	#define CLRDMADONE 0x01
157
158	/* SCSI status 1 */
159	#define SELTO 0x80
160	#define ATNTARG 0x40
161	#define SCSIRSTI 0x20
162	#define PHASEMIS 0x10
163	#define BUSFREE 0x08
164	#define SCSIPERR 0x04
165	#define PHASECHG 0x02
166	#define REQINIT 0x01
167
168	#define CLRSELTIMO 0x80
169	#define CLRATNO 0x40
170	#define CLRSCSIRSTI 0x20
171	#define CLRBUSFREE 0x08
172	#define CLRSCSIPERR 0x04
173	#define CLRPHASECHG 0x02
174	#define CLRREQINIT 0x01
175
176	/* SCSI status 2 */
177	#define SOFFSET 0x20
178	#define SEMPTY 0x10
179	#define SFULL 0x08
180	#define SFCNT 0x07 /* mask */
181
182	/* SCSI status 3 */
183	#define SCSICNT 0xf0 /* mask */
184	#define SCSICNT_ 4
185	#define OFFCNT 0x0f /* mask */
186
187	/* SCSI TEST control */
188	#define SCTESTU 0x08
189	#define SCTESTD 0x04
190	#define STCTEST 0x01
191
192	/* SCSI status 4 */
193	#define SYNCERR 0x04
194	#define FWERR 0x02
195	#define FRERR 0x01
196
197	#define CLRSYNCERR 0x04
198	#define CLRFWERR 0x02
199	#define CLRFRERR 0x01
200
201	/* SCSI interrupt mode 0 */
202	#define ENSELDO 0x40
203	#define ENSELDI 0x20
204	#define ENSELINGO 0x10
205	#define ENSWRAP 0x08
206	#define ENSDONE 0x04
207	#define ENSPIORDY 0x02
208	#define ENDMADONE 0x01
209
210	/* SCSI interrupt mode 1 */
211	#define ENSELTIMO 0x80
212	#define ENATNTARG 0x40
213	#define ENSCSIRST 0x20
214	#define ENPHASEMIS 0x10
215	#define ENBUSFREE 0x08
216	#define ENSCSIPERR 0x04
217	#define ENPHASECHG 0x02
218	#define ENREQINIT 0x01
219
220	/* DMA control 0 */
221	#define ENDMA 0x80
222	#define _8BIT 0x40
223	#define DMA 0x20
224	#define WRITE_READ 0x08
225	#define INTEN 0x04
226	#define RSTFIFO 0x02
227	#define SWINT 0x01
228
229	/* DMA control 1 */
230	#define PWRDWN 0x80
231	#define STK 0x07 /* mask */
232
233	/* DMA status */
234	#define ATDONE 0x80
235	#define WORDRDY 0x40
236	#define INTSTAT 0x20
237	#define DFIFOFULL 0x10
238	#define DFIFOEMP 0x08
239
240	/* BURST control */
241	#define BON 0xf0
242	#define BOFF 0x0f
243
244	/* TEST REGISTER */
245	#define BOFFTMR 0x40
246	#define BONTMR 0x20
247	#define STCNTH 0x10
248	#define STCNTM 0x08
249	#define STCNTL 0x04
250	#define SCSIBLK 0x02
251	#define DMABLK 0x01
252
253	/* On the AHA-152x board PORTA and PORTB contain
254	some information about the board's configuration. */
255	typedef union {
256	struct {
257	unsigned reserved:2; /* reserved */
258	unsigned tardisc:1; /* Target disconnect: 0=disabled, 1=enabled */
259	unsigned syncneg:1; /* Initial sync neg: 0=disabled, 1=enabled */
260	unsigned msgclasses:2; /* Message classes
261	0=#4
262	1=#0, #1, #2, #3, #4
263	2=#0, #3, #4
264	3=#0, #4
265	*/
266	unsigned boot:1; /* boot: 0=disabled, 1=enabled */
267	unsigned dma:1; /* Transfer mode: 0=PIO; 1=DMA */
268	unsigned id:3; /* SCSI-id */
269	unsigned irq:2; /* IRQ-Channel: 0,3=12, 1=10, 2=11 */
270	unsigned dmachan:2; /* DMA-Channel: 0=0, 1=5, 2=6, 3=7 */
271	unsigned parity:1; /* SCSI-parity: 1=enabled 0=disabled */
272	} fields;
273	unsigned short port;
274	} aha152x_config ;
275
276	#define cf_parity fields.parity
277	#define cf_dmachan fields.dmachan
278	#define cf_irq fields.irq
279	#define cf_id fields.id
280	#define cf_dma fields.dma
281	#define cf_boot fields.boot
282	#define cf_msgclasses fields.msgclasses
283	#define cf_syncneg fields.syncneg
284	#define cf_tardisc fields.tardisc
285	#define cf_port port
286
287	/* Some macros to manipulate ports and their bits */
288
289	#define SETPORT(PORT, VAL) outb( (VAL), (PORT) )
290	#define GETPORT(PORT) inb( PORT )
291	#define SETBITS(PORT, BITS) outb( (inb(PORT) \| (BITS)), (PORT) )
292	#define CLRBITS(PORT, BITS) outb( (inb(PORT) & ~(BITS)), (PORT) )
293	#define TESTHI(PORT, BITS) ((inb(PORT) & (BITS)) == (BITS))
294	#define TESTLO(PORT, BITS) ((inb(PORT) & (BITS)) == 0)
295
296	#define SETRATE(RATE) SETPORT(SCSIRATE,(RATE) & 0x7f)
297
298	#if defined(AHA152X_DEBUG)
299	enum {
300	debug_procinfo = 0x0001,
301	debug_queue = 0x0002,
50535df3	302	debug_locking = 0x0004,
1da177e4 LT	303	debug_intr = 0x0008,
	304	debug_selection = 0x0010,
	305	debug_msgo = 0x0020,
	306	debug_msgi = 0x0040,
	307	debug_status = 0x0080,
	308	debug_cmd = 0x0100,
	309	debug_datai = 0x0200,
	310	debug_datao = 0x0400,
	311	debug_eh = 0x0800,
	312	debug_done = 0x1000,
	313	debug_phases = 0x2000,
	314	};
	315	#endif
	316
	317	/* for the pcmcia stub */
	318	struct aha152x_setup {
	319	int io_port;
	320	int irq;
	321	int scsiid;
	322	int reconnect;
	323	int parity;
	324	int synchronous;
	325	int delay;
	326	int ext_trans;
	327	int tc1550;
	328	#if defined(AHA152X_DEBUG)
	329	int debug;
	330	#endif
	331	char *conf;
	332	};
	333
	334	struct Scsi_Host aha152x_probe_one(struct aha152x_setup );
	335	void aha152x_release(struct Scsi_Host *);