[linux-2.6-block.git] / include / linux / mfd / smsc.h

/*
 * SMSC ECE1099
 *
 * Copyright 2012 Texas Instruments Inc.
 *
 * Author: Sourav Poddar <sourav.poddar@ti.com>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under  the terms of the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the License, or (at your
 *  option) any later version.
 *
 */

#ifndef __LINUX_MFD_SMSC_H
#define __LINUX_MFD_SMSC_H

#include <linux/regmap.h>

#define SMSC_ID_ECE1099			1
#define SMSC_NUM_CLIENTS		2

#define SMSC_BASE_ADDR			0x38
#define OMAP_GPIO_SMSC_IRQ		151

#define SMSC_MAXGPIO         32
#define SMSC_BANK(offs)      ((offs) >> 3)
#define SMSC_BIT(offs)       (1u << ((offs) & 0x7))

struct smsc {
	struct device *dev;
	struct i2c_client *i2c_clients[SMSC_NUM_CLIENTS];
	struct regmap *regmap;
	int clk;
	/* Stored chip id */
	int id;
};

struct smsc_gpio;
struct smsc_keypad;

static inline int smsc_read(struct device *child, unsigned int reg,
	unsigned int *dest)
{
	struct smsc     *smsc = dev_get_drvdata(child->parent);

	return regmap_read(smsc->regmap, reg, dest);
}

static inline int smsc_write(struct device *child, unsigned int reg,
	unsigned int value)
{
	struct smsc     *smsc = dev_get_drvdata(child->parent);

	return regmap_write(smsc->regmap, reg, value);
}

/* Registers for SMSC */
#define SMSC_RESET						0xF5
#define SMSC_GRP_INT						0xF9
#define SMSC_CLK_CTRL						0xFA
#define SMSC_WKUP_CTRL						0xFB
#define SMSC_DEV_ID						0xFC
#define SMSC_DEV_REV						0xFD
#define SMSC_VEN_ID_L						0xFE
#define SMSC_VEN_ID_H						0xFF

/* CLK VALUE */
#define SMSC_CLK_VALUE						0x13

/* Registers for function GPIO INPUT */
#define SMSC_GPIO_DATA_IN_START					0x00

/* Registers for function GPIO OUPUT */
#define SMSC_GPIO_DATA_OUT_START                                       0x05

/* Definitions for SMSC GPIO CONFIGURATION REGISTER*/
#define SMSC_GPIO_INPUT_LOW					0x01
#define SMSC_GPIO_INPUT_RISING					0x09
#define SMSC_GPIO_INPUT_FALLING					0x11
#define SMSC_GPIO_INPUT_BOTH_EDGE				0x19
#define SMSC_GPIO_OUTPUT_PP					0x21
#define SMSC_GPIO_OUTPUT_OP					0x31

#define GRP_INT_STAT						0xf9
#define	SMSC_GPI_INT						0x0f
#define SMSC_CFG_START						0x0A

/* Registers for SMSC GPIO INTERRUPT STATUS REGISTER*/
#define SMSC_GPIO_INT_STAT_START                                  0x32

/* Registers for SMSC GPIO INTERRUPT MASK REGISTER*/
#define SMSC_GPIO_INT_MASK_START                               0x37

/* Registers for SMSC function KEYPAD*/
#define SMSC_KP_OUT						0x40
#define SMSC_KP_IN						0x41
#define SMSC_KP_INT_STAT					0x42
#define SMSC_KP_INT_MASK					0x43

/* Definitions for keypad */
#define SMSC_KP_KSO           0x70
#define SMSC_KP_KSI           0x51
#define SMSC_KSO_ALL_LOW        0x20
#define SMSC_KP_SET_LOW_PWR        0x0B
#define SMSC_KP_SET_HIGH           0xFF
#define SMSC_KSO_EVAL           0x00

#endif /*  __LINUX_MFD_SMSC_H */
Commit	Line	Data
8284328c SP	1	/*
	2	* SMSC ECE1099
	3	*
	4	* Copyright 2012 Texas Instruments Inc.
	5	*
	6	* Author: Sourav Poddar <sourav.poddar@ti.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
	12	*
	13	*/
	14
	15	#ifndef __LINUX_MFD_SMSC_H
	16	#define __LINUX_MFD_SMSC_H
	17
	18	#include <linux/regmap.h>
	19
	20	#define SMSC_ID_ECE1099 1
	21	#define SMSC_NUM_CLIENTS 2
	22
	23	#define SMSC_BASE_ADDR 0x38
	24	#define OMAP_GPIO_SMSC_IRQ 151
	25
	26	#define SMSC_MAXGPIO 32
	27	#define SMSC_BANK(offs) ((offs) >> 3)
	28	#define SMSC_BIT(offs) (1u << ((offs) & 0x7))
	29
	30	struct smsc {
	31	struct device *dev;
	32	struct i2c_client *i2c_clients[SMSC_NUM_CLIENTS];
	33	struct regmap *regmap;
	34	int clk;
	35	/* Stored chip id */
	36	int id;
	37	};
	38
	39	struct smsc_gpio;
	40	struct smsc_keypad;
	41
	42	static inline int smsc_read(struct device *child, unsigned int reg,
	43	unsigned int *dest)
	44	{
	45	struct smsc *smsc = dev_get_drvdata(child->parent);
	46
	47	return regmap_read(smsc->regmap, reg, dest);
	48	}
	49
	50	static inline int smsc_write(struct device *child, unsigned int reg,
	51	unsigned int value)
	52	{
	53	struct smsc *smsc = dev_get_drvdata(child->parent);
	54
	55	return regmap_write(smsc->regmap, reg, value);
	56	}
	57
	58	/* Registers for SMSC */
	59	#define SMSC_RESET 0xF5
	60	#define SMSC_GRP_INT 0xF9
	61	#define SMSC_CLK_CTRL 0xFA
	62	#define SMSC_WKUP_CTRL 0xFB
	63	#define SMSC_DEV_ID 0xFC
	64	#define SMSC_DEV_REV 0xFD
65	#define SMSC_VEN_ID_L 0xFE
66	#define SMSC_VEN_ID_H 0xFF
67
68	/* CLK VALUE */
69	#define SMSC_CLK_VALUE 0x13
70
71	/* Registers for function GPIO INPUT */
72	#define SMSC_GPIO_DATA_IN_START 0x00
73
74	/* Registers for function GPIO OUPUT */
75	#define SMSC_GPIO_DATA_OUT_START 0x05
76
77	/* Definitions for SMSC GPIO CONFIGURATION REGISTER*/
78	#define SMSC_GPIO_INPUT_LOW 0x01
79	#define SMSC_GPIO_INPUT_RISING 0x09
80	#define SMSC_GPIO_INPUT_FALLING 0x11
81	#define SMSC_GPIO_INPUT_BOTH_EDGE 0x19
82	#define SMSC_GPIO_OUTPUT_PP 0x21
83	#define SMSC_GPIO_OUTPUT_OP 0x31
84
85	#define GRP_INT_STAT 0xf9
86	#define SMSC_GPI_INT 0x0f
87	#define SMSC_CFG_START 0x0A
88
89	/* Registers for SMSC GPIO INTERRUPT STATUS REGISTER*/
90	#define SMSC_GPIO_INT_STAT_START 0x32
91
92	/* Registers for SMSC GPIO INTERRUPT MASK REGISTER*/
93	#define SMSC_GPIO_INT_MASK_START 0x37
94
95	/* Registers for SMSC function KEYPAD*/
96	#define SMSC_KP_OUT 0x40
97	#define SMSC_KP_IN 0x41
98	#define SMSC_KP_INT_STAT 0x42
99	#define SMSC_KP_INT_MASK 0x43
100
101	/* Definitions for keypad */
102	#define SMSC_KP_KSO 0x70
103	#define SMSC_KP_KSI 0x51
104	#define SMSC_KSO_ALL_LOW 0x20
105	#define SMSC_KP_SET_LOW_PWR 0x0B
106	#define SMSC_KP_SET_HIGH 0xFF
107	#define SMSC_KSO_EVAL 0x00
108
109	#endif /* __LINUX_MFD_SMSC_H */