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
137struct adp5588_gpi_map {
138	unsigned short pin;
139	unsigned short sw_evt;
140};
141
142struct 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
156struct i2c_client; /* forward declaration */
157
158struct 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