drivers/scsi/mesh.h

1 /* SPDX-License-Identifier: GPL-2.0 */
28 	char pad0[15];
30 	char pad1[15];
32 	char pad2[15];
34 	char pad3[15];
36 	char pad4[15];
38 	char pad5[15];
40 	char pad6[15];
42 	char pad7[15];
44 	char pad8[15];
46 	char pad9[15];
48 	char pad10[15];
50 	char pad11[15];
52 	char pad12[15];
54 	char pad13[15];
56 	char pad14[15];
58 	char pad15[15];
62 #define SEQ_DMA_MODE	0x80	/* use DMA for data transfer */
63 #define SEQ_TARGET	0x40	/* put the controller into target mode */
64 #define SEQ_ATN		0x20	/* assert ATN signal */
65 #define SEQ_ACTIVE_NEG	0x10	/* use active negation on REQ/ACK */
66 #define SEQ_CMD		0x0f	/* command bits: */
76 #define SEQ_ENBPARITY	0x0a	/*  enable parity checking */
77 #define SEQ_DISPARITY	0x0b	/*  disable parity checking */
78 #define SEQ_ENBRESEL	0x0c	/*  enable reselection */
79 #define SEQ_DISRESEL	0x0d	/*  disable reselection */
80 #define SEQ_RESETMESH	0x0e	/*  reset the controller */
81 #define SEQ_FLUSHFIFO	0x0f	/*  clear out the FIFO */
85 #define BS0_REQ		0x20
86 #define BS0_ACK		0x10
87 #define BS0_ATN		0x08
88 #define BS0_MSG		0x04
89 #define BS0_CD		0x02
90 #define BS0_IO		0x01
91 #define BS1_RST		0x80
92 #define BS1_BSY		0x40
93 #define BS1_SEL		0x20
97 #define BP_DATAOUT	0
105 #define EXC_SELWATN	0x20	/* (as target) we were selected with ATN */
106 #define EXC_SELECTED	0x10	/* (as target) we were selected w/o ATN */
107 #define EXC_RESELECTED	0x08	/* (as initiator) we were reselected */
108 #define EXC_ARBLOST	0x04	/* we lost arbitration */
109 #define EXC_PHASEMM	0x02	/* SCSI phase mismatch */
110 #define EXC_SELTO	0x01	/* selection timeout */
113 #define ERR_UNEXPDISC	0x40	/* target unexpectedly disconnected */
114 #define ERR_SCSIRESET	0x20	/* SCSI bus got reset on us */
115 #define ERR_SEQERR	0x10	/* we did something the chip didn't like */
116 #define ERR_PARITY	0x01	/* parity error was detected */
119 #define INT_ERROR	0x04	/* error interrupt */
120 #define INT_EXCEPTION	0x02	/* exception interrupt */
121 #define INT_CMDDONE	0x01	/* command done interrupt */
125 #define SYNC_PER(x)	((x) & 0xf)	/* period field */
133  * is (x + 2) * 40ns, except that x == 0 gives 100ns.