xref: /linux/drivers/comedi/drivers/addi_tcw.h (revision 2da68a77)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ADDI_TCW_H
3 #define _ADDI_TCW_H
4 
5 /*
6  * Following are the generic definitions for the ADDI-DATA timer/counter/
7  * watchdog (TCW) registers and bits. Some of the registers are not used
8  * depending on the use of the TCW.
9  */
10 
11 #define ADDI_TCW_VAL_REG		0x00
12 
13 #define ADDI_TCW_SYNC_REG		0x00
14 #define ADDI_TCW_SYNC_CTR_TRIG		BIT(8)
15 #define ADDI_TCW_SYNC_CTR_DIS		BIT(7)
16 #define ADDI_TCW_SYNC_CTR_ENA		BIT(6)
17 #define ADDI_TCW_SYNC_TIMER_TRIG	BIT(5)
18 #define ADDI_TCW_SYNC_TIMER_DIS		BIT(4)
19 #define ADDI_TCW_SYNC_TIMER_ENA		BIT(3)
20 #define ADDI_TCW_SYNC_WDOG_TRIG		BIT(2)
21 #define ADDI_TCW_SYNC_WDOG_DIS		BIT(1)
22 #define ADDI_TCW_SYNC_WDOG_ENA		BIT(0)
23 
24 #define ADDI_TCW_RELOAD_REG		0x04
25 
26 #define ADDI_TCW_TIMEBASE_REG		0x08
27 
28 #define ADDI_TCW_CTRL_REG		0x0c
29 #define ADDI_TCW_CTRL_EXT_CLK_STATUS	BIT(21)
30 #define ADDI_TCW_CTRL_CASCADE		BIT(20)
31 #define ADDI_TCW_CTRL_CNTR_ENA		BIT(19)
32 #define ADDI_TCW_CTRL_CNT_UP		BIT(18)
33 #define ADDI_TCW_CTRL_EXT_CLK(x)	(((x) & 3) << 16)
34 #define ADDI_TCW_CTRL_EXT_CLK_MASK	ADDI_TCW_CTRL_EXT_CLK(3)
35 #define ADDI_TCW_CTRL_MODE(x)		(((x) & 7) << 13)
36 #define ADDI_TCW_CTRL_MODE_MASK		ADDI_TCW_CTRL_MODE(7)
37 #define ADDI_TCW_CTRL_OUT(x)		(((x) & 3) << 11)
38 #define ADDI_TCW_CTRL_OUT_MASK		ADDI_TCW_CTRL_OUT(3)
39 #define ADDI_TCW_CTRL_GATE		BIT(10)
40 #define ADDI_TCW_CTRL_TRIG		BIT(9)
41 #define ADDI_TCW_CTRL_EXT_GATE(x)	(((x) & 3) << 7)
42 #define ADDI_TCW_CTRL_EXT_GATE_MASK	ADDI_TCW_CTRL_EXT_GATE(3)
43 #define ADDI_TCW_CTRL_EXT_TRIG(x)	(((x) & 3) << 5)
44 #define ADDI_TCW_CTRL_EXT_TRIG_MASK	ADDI_TCW_CTRL_EXT_TRIG(3)
45 #define ADDI_TCW_CTRL_TIMER_ENA		BIT(4)
46 #define ADDI_TCW_CTRL_RESET_ENA		BIT(3)
47 #define ADDI_TCW_CTRL_WARN_ENA		BIT(2)
48 #define ADDI_TCW_CTRL_IRQ_ENA		BIT(1)
49 #define ADDI_TCW_CTRL_ENA		BIT(0)
50 
51 #define ADDI_TCW_STATUS_REG		0x10
52 #define ADDI_TCW_STATUS_SOFT_CLR	BIT(3)
53 #define ADDI_TCW_STATUS_HARDWARE_TRIG	BIT(2)
54 #define ADDI_TCW_STATUS_SOFT_TRIG	BIT(1)
55 #define ADDI_TCW_STATUS_OVERFLOW	BIT(0)
56 
57 #define ADDI_TCW_IRQ_REG		0x14
58 #define ADDI_TCW_IRQ			BIT(0)
59 
60 #define ADDI_TCW_WARN_TIMEVAL_REG	0x18
61 
62 #define ADDI_TCW_WARN_TIMEBASE_REG	0x1c
63 
64 #endif
65