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109 lines
2.9 KiB
109 lines
2.9 KiB
/* |
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* SMSC ECE1099 |
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* |
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* Copyright 2012 Texas Instruments Inc. |
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* |
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* Author: Sourav Poddar <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the |
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* Free Software Foundation; either version 2 of the License, or (at your |
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* option) any later version. |
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* |
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*/ |
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#ifndef __LINUX_MFD_SMSC_H |
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#define __LINUX_MFD_SMSC_H |
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#include <linux/regmap.h> |
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#define SMSC_ID_ECE1099 1 |
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#define SMSC_NUM_CLIENTS 2 |
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#define SMSC_BASE_ADDR 0x38 |
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#define OMAP_GPIO_SMSC_IRQ 151 |
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#define SMSC_MAXGPIO 32 |
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#define SMSC_BANK(offs) ((offs) >> 3) |
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#define SMSC_BIT(offs) (1u << ((offs) & 0x7)) |
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struct smsc { |
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struct device *dev; |
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struct i2c_client *i2c_clients[SMSC_NUM_CLIENTS]; |
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struct regmap *regmap; |
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int clk; |
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/* Stored chip id */ |
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int id; |
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}; |
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struct smsc_gpio; |
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struct smsc_keypad; |
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static inline int smsc_read(struct device *child, unsigned int reg, |
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unsigned int *dest) |
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{ |
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struct smsc *smsc = dev_get_drvdata(child->parent); |
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return regmap_read(smsc->regmap, reg, dest); |
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} |
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static inline int smsc_write(struct device *child, unsigned int reg, |
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unsigned int value) |
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{ |
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struct smsc *smsc = dev_get_drvdata(child->parent); |
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return regmap_write(smsc->regmap, reg, value); |
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} |
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/* Registers for SMSC */ |
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#define SMSC_RESET 0xF5 |
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#define SMSC_GRP_INT 0xF9 |
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#define SMSC_CLK_CTRL 0xFA |
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#define SMSC_WKUP_CTRL 0xFB |
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#define SMSC_DEV_ID 0xFC |
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#define SMSC_DEV_REV 0xFD |
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#define SMSC_VEN_ID_L 0xFE |
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#define SMSC_VEN_ID_H 0xFF |
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/* CLK VALUE */ |
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#define SMSC_CLK_VALUE 0x13 |
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/* Registers for function GPIO INPUT */ |
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#define SMSC_GPIO_DATA_IN_START 0x00 |
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/* Registers for function GPIO OUPUT */ |
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#define SMSC_GPIO_DATA_OUT_START 0x05 |
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/* Definitions for SMSC GPIO CONFIGURATION REGISTER*/ |
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#define SMSC_GPIO_INPUT_LOW 0x01 |
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#define SMSC_GPIO_INPUT_RISING 0x09 |
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#define SMSC_GPIO_INPUT_FALLING 0x11 |
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#define SMSC_GPIO_INPUT_BOTH_EDGE 0x19 |
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#define SMSC_GPIO_OUTPUT_PP 0x21 |
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#define SMSC_GPIO_OUTPUT_OP 0x31 |
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#define GRP_INT_STAT 0xf9 |
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#define SMSC_GPI_INT 0x0f |
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#define SMSC_CFG_START 0x0A |
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/* Registers for SMSC GPIO INTERRUPT STATUS REGISTER*/ |
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#define SMSC_GPIO_INT_STAT_START 0x32 |
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/* Registers for SMSC GPIO INTERRUPT MASK REGISTER*/ |
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#define SMSC_GPIO_INT_MASK_START 0x37 |
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/* Registers for SMSC function KEYPAD*/ |
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#define SMSC_KP_OUT 0x40 |
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#define SMSC_KP_IN 0x41 |
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#define SMSC_KP_INT_STAT 0x42 |
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#define SMSC_KP_INT_MASK 0x43 |
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/* Definitions for keypad */ |
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#define SMSC_KP_KSO 0x70 |
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#define SMSC_KP_KSI 0x51 |
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#define SMSC_KSO_ALL_LOW 0x20 |
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#define SMSC_KP_SET_LOW_PWR 0x0B |
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#define SMSC_KP_SET_HIGH 0xFF |
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#define SMSC_KSO_EVAL 0x00 |
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#endif /* __LINUX_MFD_SMSC_H */
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