1 /*
2  * Exynos specific definitions for Samsung pinctrl and gpiolib driver.
3  *
4  * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5  *		http://www.samsung.com
6  * Copyright (c) 2012 Linaro Ltd
7  *		http://www.linaro.org
8  *
9  * This file contains the Exynos specific definitions for the Samsung
10  * pinctrl/gpiolib interface drivers.
11  *
12  * Author: Thomas Abraham <thomas.ab@samsung.com>
13  *
14  * This program is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License as published by
16  * the Free Software Foundation; either version 2 of the License, or
17  * (at your option) any later version.
18  */
19 
20 /* External GPIO and wakeup interrupt related definitions */
21 #define EXYNOS_GPIO_ECON_OFFSET		0x700
22 #define EXYNOS_GPIO_EFLTCON_OFFSET	0x800
23 #define EXYNOS_GPIO_EMASK_OFFSET	0x900
24 #define EXYNOS_GPIO_EPEND_OFFSET	0xA00
25 #define EXYNOS_WKUP_ECON_OFFSET		0xE00
26 #define EXYNOS_WKUP_EMASK_OFFSET	0xF00
27 #define EXYNOS_WKUP_EPEND_OFFSET	0xF40
28 #define EXYNOS7_WKUP_ECON_OFFSET	0x700
29 #define EXYNOS7_WKUP_EMASK_OFFSET	0x900
30 #define EXYNOS7_WKUP_EPEND_OFFSET	0xA00
31 #define EXYNOS_SVC_OFFSET		0xB08
32 #define EXYNOS_EINT_FUNC		0xF
33 
34 /* helpers to access interrupt service register */
35 #define EXYNOS_SVC_GROUP_SHIFT		3
36 #define EXYNOS_SVC_GROUP_MASK		0x1f
37 #define EXYNOS_SVC_NUM_MASK		7
38 #define EXYNOS_SVC_GROUP(x)		((x >> EXYNOS_SVC_GROUP_SHIFT) & \
39 						EXYNOS_SVC_GROUP_MASK)
40 
41 /* Exynos specific external interrupt trigger types */
42 #define EXYNOS_EINT_LEVEL_LOW		0
43 #define EXYNOS_EINT_LEVEL_HIGH		1
44 #define EXYNOS_EINT_EDGE_FALLING	2
45 #define EXYNOS_EINT_EDGE_RISING		3
46 #define EXYNOS_EINT_EDGE_BOTH		4
47 #define EXYNOS_EINT_CON_MASK		0xF
48 #define EXYNOS_EINT_CON_LEN		4
49 
50 #define EXYNOS_EINT_MAX_PER_BANK	8
51 #define EXYNOS_EINT_NR_WKUP_EINT
52 
53 #define EXYNOS_PIN_BANK_EINTN(pins, reg, id)		\
54 	{						\
55 		.type		= &bank_type_off,	\
56 		.pctl_offset	= reg,			\
57 		.nr_pins	= pins,			\
58 		.eint_type	= EINT_TYPE_NONE,	\
59 		.name		= id			\
60 	}
61 
62 #define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs)	\
63 	{						\
64 		.type		= &bank_type_off,	\
65 		.pctl_offset	= reg,			\
66 		.nr_pins	= pins,			\
67 		.eint_type	= EINT_TYPE_GPIO,	\
68 		.eint_offset	= offs,			\
69 		.name		= id			\
70 	}
71 
72 #define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs)	\
73 	{						\
74 		.type		= &bank_type_alive,	\
75 		.pctl_offset	= reg,			\
76 		.nr_pins	= pins,			\
77 		.eint_type	= EINT_TYPE_WKUP,	\
78 		.eint_offset	= offs,			\
79 		.name		= id			\
80 	}
81 
82 /**
83  * struct exynos_weint_data: irq specific data for all the wakeup interrupts
84  * generated by the external wakeup interrupt controller.
85  * @irq: interrupt number within the domain.
86  * @bank: bank responsible for this interrupt
87  */
88 struct exynos_weint_data {
89 	unsigned int irq;
90 	struct samsung_pin_bank *bank;
91 };
92 
93 /**
94  * struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
95  * generated by the external wakeup interrupt controller.
96  * @nr_banks: count of banks being part of the mux
97  * @banks: array of banks being part of the mux
98  */
99 struct exynos_muxed_weint_data {
100 	unsigned int nr_banks;
101 	struct samsung_pin_bank *banks[];
102 };
103