1 /* SPDX-License-Identifier: GPL-2.0 */
2 
3 #define FDOMAIN_REGION_SIZE	0x10
4 #define FDOMAIN_BIOS_SIZE	0x2000
5 
6 enum {
7 	in_arbitration	= 0x02,
8 	in_selection	= 0x04,
9 	in_other	= 0x08,
10 	disconnect	= 0x10,
11 	aborted		= 0x20,
12 	sent_ident	= 0x40,
13 };
14 
15 /* (@) = not present on TMC1800, (#) = not present on TMC1800 and TMC18C50 */
16 #define REG_SCSI_DATA		0	/* R/W: SCSI Data (with ACK) */
17 #define REG_BSTAT		1	/* R: SCSI Bus Status */
18 #define		BSTAT_BSY	BIT(0)	 /* Busy */
19 #define		BSTAT_MSG	BIT(1)	 /* Message */
20 #define		BSTAT_IO	BIT(2)	 /* Input/Output */
21 #define		BSTAT_CMD	BIT(3)	 /* Command/Data */
22 #define		BSTAT_REQ	BIT(4)	 /* Request and Not Ack */
23 #define		BSTAT_SEL	BIT(5)	 /* Select */
24 #define		BSTAT_ACK	BIT(6)	 /* Acknowledge and Request */
25 #define		BSTAT_ATN	BIT(7)	 /* Attention */
26 #define REG_BCTL		1	/* W: SCSI Bus Control */
27 #define		BCTL_RST	BIT(0)	 /* Bus Reset */
28 #define		BCTL_SEL	BIT(1)	 /* Select */
29 #define		BCTL_BSY	BIT(2)	 /* Busy */
30 #define		BCTL_ATN	BIT(3)	 /* Attention */
31 #define		BCTL_IO		BIT(4)	 /* Input/Output */
32 #define		BCTL_CMD	BIT(5)	 /* Command/Data */
33 #define		BCTL_MSG	BIT(6)	 /* Message */
34 #define		BCTL_BUSEN	BIT(7)	 /* Enable bus drivers */
35 #define REG_ASTAT		2	/* R: Adapter Status 1 */
36 #define		ASTAT_IRQ	BIT(0)	 /* Interrupt active */
37 #define		ASTAT_ARB	BIT(1)	 /* Arbitration complete */
38 #define		ASTAT_PARERR	BIT(2)	 /* Parity error */
39 #define		ASTAT_RST	BIT(3)	 /* SCSI reset occurred */
40 #define		ASTAT_FIFODIR	BIT(4)	 /* FIFO direction */
41 #define		ASTAT_FIFOEN	BIT(5)	 /* FIFO enabled */
42 #define		ASTAT_PAREN	BIT(6)	 /* Parity enabled */
43 #define		ASTAT_BUSEN	BIT(7)	 /* Bus drivers enabled */
44 #define REG_ICTL		2	/* W: Interrupt Control */
45 #define		ICTL_FIFO_MASK	0x0f	 /* FIFO threshold, 1/16 FIFO size */
46 #define		ICTL_FIFO	BIT(4)	 /* Int. on FIFO count */
47 #define		ICTL_ARB	BIT(5)	 /* Int. on Arbitration complete */
48 #define		ICTL_SEL	BIT(6)	 /* Int. on SCSI Select */
49 #define		ICTL_REQ	BIT(7)	 /* Int. on SCSI Request */
50 #define REG_FSTAT		3	/* R: Adapter Status 2 (FIFO) - (@) */
51 #define		FSTAT_ONOTEMPTY	BIT(0)	 /* Output FIFO not empty */
52 #define		FSTAT_INOTEMPTY	BIT(1)	 /* Input FIFO not empty */
53 #define		FSTAT_NOTEMPTY	BIT(2)	 /* Main FIFO not empty */
54 #define		FSTAT_NOTFULL	BIT(3)	 /* Main FIFO not full */
55 #define REG_MCTL		3	/* W: SCSI Data Mode Control */
56 #define		MCTL_ACK_MASK	0x0f	 /* Acknowledge period */
57 #define		MCTL_ACTDEASS	BIT(4)	 /* Active deassert of REQ and ACK */
58 #define		MCTL_TARGET	BIT(5)	 /* Enable target mode */
59 #define		MCTL_FASTSYNC	BIT(6)	 /* Enable Fast Synchronous */
60 #define		MCTL_SYNC	BIT(7)	 /* Enable Synchronous */
61 #define REG_INTCOND		4	/* R: Interrupt Condition - (@) */
62 #define		IRQ_FIFO	BIT(1)	 /* FIFO interrupt */
63 #define		IRQ_REQ		BIT(2)	 /* SCSI Request interrupt */
64 #define		IRQ_SEL		BIT(3)	 /* SCSI Select interrupt */
65 #define		IRQ_ARB		BIT(4)	 /* SCSI Arbitration interrupt */
66 #define		IRQ_RST		BIT(5)	 /* SCSI Reset interrupt */
67 #define		IRQ_FORCED	BIT(6)	 /* Forced interrupt */
68 #define		IRQ_TIMEOUT	BIT(7)	 /* Bus timeout */
69 #define REG_ACTL		4	/* W: Adapter Control 1 */
70 #define		ACTL_RESET	BIT(0)	 /* Reset FIFO, parity, reset int. */
71 #define		ACTL_FIRQ	BIT(1)	 /* Set Forced interrupt */
72 #define		ACTL_ARB	BIT(2)	 /* Initiate Bus Arbitration */
73 #define		ACTL_PAREN	BIT(3)	 /* Enable SCSI Parity */
74 #define		ACTL_IRQEN	BIT(4)	 /* Enable interrupts */
75 #define		ACTL_CLRFIRQ	BIT(5)	 /* Clear Forced interrupt */
76 #define		ACTL_FIFOWR	BIT(6)	 /* FIFO Direction (1=write) */
77 #define		ACTL_FIFOEN	BIT(7)	 /* Enable FIFO */
78 #define REG_ID_LSB		5	/* R: ID Code (LSB) */
79 #define REG_ACTL2		5	/* Adapter Control 2 - (@) */
80 #define		ACTL2_RAMOVRLY	BIT(0)	 /* Enable RAM overlay */
81 #define		ACTL2_SLEEP	BIT(7)	 /* Sleep mode */
82 #define REG_ID_MSB		6	/* R: ID Code (MSB) */
83 #define REG_LOOPBACK		7	/* R/W: Loopback */
84 #define REG_SCSI_DATA_NOACK	8	/* R/W: SCSI Data (no ACK) */
85 #define REG_ASTAT3		9	/* R: Adapter Status 3 */
86 #define		ASTAT3_ACTDEASS	BIT(0)	 /* Active deassert enabled */
87 #define		ASTAT3_RAMOVRLY	BIT(1)	 /* RAM overlay enabled */
88 #define		ASTAT3_TARGERR	BIT(2)	 /* Target error */
89 #define		ASTAT3_IRQEN	BIT(3)	 /* Interrupts enabled */
90 #define		ASTAT3_IRQMASK	0xf0	 /* Enabled interrupts mask */
91 #define REG_CFG1		10	/* R: Configuration Register 1 */
92 #define		CFG1_BUS	BIT(0)	 /* 0 = ISA */
93 #define		CFG1_IRQ_MASK	0x0e	 /* IRQ jumpers */
94 #define		CFG1_IO_MASK	0x30	 /* I/O base jumpers */
95 #define		CFG1_BIOS_MASK	0xc0	 /* BIOS base jumpers */
96 #define REG_CFG2		11	/* R/W: Configuration Register 2 (@) */
97 #define		CFG2_ROMDIS	BIT(0)	 /* ROM disabled */
98 #define		CFG2_RAMDIS	BIT(1)	 /* RAM disabled */
99 #define		CFG2_IRQEDGE	BIT(2)	 /* Edge-triggered interrupts */
100 #define		CFG2_NOWS	BIT(3)	 /* No wait states */
101 #define		CFG2_32BIT	BIT(7)	 /* 32-bit mode */
102 #define REG_FIFO		12	/* R/W: FIFO */
103 #define REG_FIFO_COUNT		14	/* R: FIFO Data Count */
104 
105 #ifdef CONFIG_PM_SLEEP
106 static const struct dev_pm_ops fdomain_pm_ops;
107 #define FDOMAIN_PM_OPS	(&fdomain_pm_ops)
108 #else
109 #define FDOMAIN_PM_OPS	NULL
110 #endif /* CONFIG_PM_SLEEP */
111 
112 struct Scsi_Host *fdomain_create(int base, int irq, int this_id,
113 				 struct device *dev);
114 int fdomain_destroy(struct Scsi_Host *sh);
115