1 /*
2  * Analog Devices ADP5588 I/O Expander and QWERTY Keypad Controller
3  *
4  * Copyright 2009-2010 Analog Devices Inc.
5  *
6  * Licensed under the GPL-2 or later.
7  */
8 
9 #ifndef _ADP5588_H
10 #define _ADP5588_H
11 
12 #define DEV_ID 0x00		/* Device ID */
13 #define CFG 0x01		/* Configuration Register1 */
14 #define INT_STAT 0x02		/* Interrupt Status Register */
15 #define KEY_LCK_EC_STAT 0x03	/* Key Lock and Event Counter Register */
16 #define Key_EVENTA 0x04		/* Key Event Register A */
17 #define Key_EVENTB 0x05		/* Key Event Register B */
18 #define Key_EVENTC 0x06		/* Key Event Register C */
19 #define Key_EVENTD 0x07		/* Key Event Register D */
20 #define Key_EVENTE 0x08		/* Key Event Register E */
21 #define Key_EVENTF 0x09		/* Key Event Register F */
22 #define Key_EVENTG 0x0A		/* Key Event Register G */
23 #define Key_EVENTH 0x0B		/* Key Event Register H */
24 #define Key_EVENTI 0x0C		/* Key Event Register I */
25 #define Key_EVENTJ 0x0D		/* Key Event Register J */
26 #define KP_LCK_TMR 0x0E		/* Keypad Lock1 to Lock2 Timer */
27 #define UNLOCK1 0x0F		/* Unlock Key1 */
28 #define UNLOCK2 0x10		/* Unlock Key2 */
29 #define GPIO_INT_STAT1 0x11	/* GPIO Interrupt Status */
30 #define GPIO_INT_STAT2 0x12	/* GPIO Interrupt Status */
31 #define GPIO_INT_STAT3 0x13	/* GPIO Interrupt Status */
32 #define GPIO_DAT_STAT1 0x14	/* GPIO Data Status, Read twice to clear */
33 #define GPIO_DAT_STAT2 0x15	/* GPIO Data Status, Read twice to clear */
34 #define GPIO_DAT_STAT3 0x16	/* GPIO Data Status, Read twice to clear */
35 #define GPIO_DAT_OUT1 0x17	/* GPIO DATA OUT */
36 #define GPIO_DAT_OUT2 0x18	/* GPIO DATA OUT */
37 #define GPIO_DAT_OUT3 0x19	/* GPIO DATA OUT */
38 #define GPIO_INT_EN1 0x1A	/* GPIO Interrupt Enable */
39 #define GPIO_INT_EN2 0x1B	/* GPIO Interrupt Enable */
40 #define GPIO_INT_EN3 0x1C	/* GPIO Interrupt Enable */
41 #define KP_GPIO1 0x1D		/* Keypad or GPIO Selection */
42 #define KP_GPIO2 0x1E		/* Keypad or GPIO Selection */
43 #define KP_GPIO3 0x1F		/* Keypad or GPIO Selection */
44 #define GPI_EM1 0x20		/* GPI Event Mode 1 */
45 #define GPI_EM2 0x21		/* GPI Event Mode 2 */
46 #define GPI_EM3 0x22		/* GPI Event Mode 3 */
47 #define GPIO_DIR1 0x23		/* GPIO Data Direction */
48 #define GPIO_DIR2 0x24		/* GPIO Data Direction */
49 #define GPIO_DIR3 0x25		/* GPIO Data Direction */
50 #define GPIO_INT_LVL1 0x26	/* GPIO Edge/Level Detect */
51 #define GPIO_INT_LVL2 0x27	/* GPIO Edge/Level Detect */
52 #define GPIO_INT_LVL3 0x28	/* GPIO Edge/Level Detect */
53 #define Debounce_DIS1 0x29	/* Debounce Disable */
54 #define Debounce_DIS2 0x2A	/* Debounce Disable */
55 #define Debounce_DIS3 0x2B	/* Debounce Disable */
56 #define GPIO_PULL1 0x2C		/* GPIO Pull Disable */
57 #define GPIO_PULL2 0x2D		/* GPIO Pull Disable */
58 #define GPIO_PULL3 0x2E		/* GPIO Pull Disable */
59 #define CMP_CFG_STAT 0x30	/* Comparator Configuration and Status Register */
60 #define CMP_CONFG_SENS1 0x31	/* Sensor1 Comparator Configuration Register */
61 #define CMP_CONFG_SENS2 0x32	/* L2 Light Sensor Reference Level, Output Falling for Sensor 1 */
62 #define CMP1_LVL2_TRIP 0x33	/* L2 Light Sensor Hysteresis (Active when Output Rising) for Sensor 1 */
63 #define CMP1_LVL2_HYS 0x34	/* L3 Light Sensor Reference Level, Output Falling For Sensor 1 */
64 #define CMP1_LVL3_TRIP 0x35	/* L3 Light Sensor Hysteresis (Active when Output Rising) For Sensor 1 */
65 #define CMP1_LVL3_HYS 0x36	/* Sensor 2 Comparator Configuration Register */
66 #define CMP2_LVL2_TRIP 0x37	/* L2 Light Sensor Reference Level, Output Falling for Sensor 2 */
67 #define CMP2_LVL2_HYS 0x38	/* L2 Light Sensor Hysteresis (Active when Output Rising) for Sensor 2 */
68 #define CMP2_LVL3_TRIP 0x39	/* L3 Light Sensor Reference Level, Output Falling For Sensor 2 */
69 #define CMP2_LVL3_HYS 0x3A	/* L3 Light Sensor Hysteresis (Active when Output Rising) For Sensor 2 */
70 #define CMP1_ADC_DAT_R1 0x3B	/* Comparator 1 ADC data Register1 */
71 #define CMP1_ADC_DAT_R2 0x3C	/* Comparator 1 ADC data Register2 */
72 #define CMP2_ADC_DAT_R1 0x3D	/* Comparator 2 ADC data Register1 */
73 #define CMP2_ADC_DAT_R2 0x3E	/* Comparator 2 ADC data Register2 */
74 
75 #define ADP5588_DEVICE_ID_MASK	0xF
76 
77  /* Configuration Register1 */
78 #define ADP5588_AUTO_INC	(1 << 7)
79 #define ADP5588_GPIEM_CFG	(1 << 6)
80 #define ADP5588_OVR_FLOW_M	(1 << 5)
81 #define ADP5588_INT_CFG		(1 << 4)
82 #define ADP5588_OVR_FLOW_IEN	(1 << 3)
83 #define ADP5588_K_LCK_IM	(1 << 2)
84 #define ADP5588_GPI_IEN		(1 << 1)
85 #define ADP5588_KE_IEN		(1 << 0)
86 
87 /* Interrupt Status Register */
88 #define ADP5588_CMP2_INT	(1 << 5)
89 #define ADP5588_CMP1_INT	(1 << 4)
90 #define ADP5588_OVR_FLOW_INT	(1 << 3)
91 #define ADP5588_K_LCK_INT	(1 << 2)
92 #define ADP5588_GPI_INT		(1 << 1)
93 #define ADP5588_KE_INT		(1 << 0)
94 
95 /* Key Lock and Event Counter Register */
96 #define ADP5588_K_LCK_EN	(1 << 6)
97 #define ADP5588_LCK21		0x30
98 #define ADP5588_KEC		0xF
99 
100 #define ADP5588_MAXGPIO		18
101 #define ADP5588_BANK(offs)	((offs) >> 3)
102 #define ADP5588_BIT(offs)	(1u << ((offs) & 0x7))
103 
104 /* Put one of these structures in i2c_board_info platform_data */
105 
106 #define ADP5588_KEYMAPSIZE	80
107 
108 #define GPI_PIN_ROW0 97
109 #define GPI_PIN_ROW1 98
110 #define GPI_PIN_ROW2 99
111 #define GPI_PIN_ROW3 100
112 #define GPI_PIN_ROW4 101
113 #define GPI_PIN_ROW5 102
114 #define GPI_PIN_ROW6 103
115 #define GPI_PIN_ROW7 104
116 #define GPI_PIN_COL0 105
117 #define GPI_PIN_COL1 106
118 #define GPI_PIN_COL2 107
119 #define GPI_PIN_COL3 108
120 #define GPI_PIN_COL4 109
121 #define GPI_PIN_COL5 110
122 #define GPI_PIN_COL6 111
123 #define GPI_PIN_COL7 112
124 #define GPI_PIN_COL8 113
125 #define GPI_PIN_COL9 114
126 
127 #define GPI_PIN_ROW_BASE GPI_PIN_ROW0
128 #define GPI_PIN_ROW_END GPI_PIN_ROW7
129 #define GPI_PIN_COL_BASE GPI_PIN_COL0
130 #define GPI_PIN_COL_END GPI_PIN_COL9
131 
132 #define GPI_PIN_BASE GPI_PIN_ROW_BASE
133 #define GPI_PIN_END GPI_PIN_COL_END
134 
135 #define ADP5588_GPIMAPSIZE_MAX (GPI_PIN_END - GPI_PIN_BASE + 1)
136 
137 struct adp5588_gpi_map {
138 	unsigned short pin;
139 	unsigned short sw_evt;
140 };
141 
142 struct adp5588_kpad_platform_data {
143 	int rows;			/* Number of rows */
144 	int cols;			/* Number of columns */
145 	const unsigned short *keymap;	/* Pointer to keymap */
146 	unsigned short keymapsize;	/* Keymap size */
147 	unsigned repeat:1;		/* Enable key repeat */
148 	unsigned en_keylock:1;		/* Enable Key Lock feature */
149 	unsigned short unlock_key1;	/* Unlock Key 1 */
150 	unsigned short unlock_key2;	/* Unlock Key 2 */
151 	const struct adp5588_gpi_map *gpimap;
152 	unsigned short gpimapsize;
153 	const struct adp5588_gpio_platform_data *gpio_data;
154 };
155 
156 struct i2c_client; /* forward declaration */
157 
158 struct adp5588_gpio_platform_data {
159 	int gpio_start;		/* GPIO Chip base # */
160 	const char *const *names;
161 	unsigned irq_base;	/* interrupt base # */
162 	unsigned pullup_dis_mask; /* Pull-Up Disable Mask */
163 	int	(*setup)(struct i2c_client *client,
164 				unsigned gpio, unsigned ngpio,
165 				void *context);
166 	int	(*teardown)(struct i2c_client *client,
167 				unsigned gpio, unsigned ngpio,
168 				void *context);
169 	void	*context;
170 };
171 
172 #endif
173