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include/tca642x.h
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61c1775f1 gpio: tca642x: Ad... |
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/* * Copyright 2013 Texas Instruments, Inc. * Author: Dan Murphy <dmurphy@ti.com> * * Derived work from the pca953x.c driver * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #ifndef __TCA642X_H_ #define __TCA642X_H_ #ifdef CONFIG_CMD_TCA642X enum { TCA642X_CMD_INFO, TCA642X_CMD_DEVICE, TCA642X_CMD_OUTPUT, TCA642X_CMD_INPUT, TCA642X_CMD_INVERT, }; #endif #define TCA642X_OUT_LOW 0 #define TCA642X_OUT_HIGH 1 #define TCA642X_POL_NORMAL 0 #define TCA642X_POL_INVERT 1 #define TCA642X_DIR_OUT 0 #define TCA642X_DIR_IN 1 /* Default to an address that hopefully won't corrupt other i2c devices */ #ifndef CONFIG_SYS_I2C_TCA642X_ADDR #define CONFIG_SYS_I2C_TCA642X_ADDR (~0) #endif /* Default to an address that hopefully won't corrupt other i2c devices */ #ifndef CONFIG_SYS_I2C_TCA642X_BUS_NUM #define CONFIG_SYS_I2C_TCA642X_BUS_NUM (0) #endif struct tca642x_bank_info { uint8_t input_reg; uint8_t output_reg; uint8_t polarity_reg; uint8_t configuration_reg; }; int tca642x_set_val(uchar chip, uint8_t gpio_bank, uint8_t reg_bit, uint8_t data); int tca642x_set_pol(uchar chip, uint8_t gpio_bank, uint8_t reg_bit, uint8_t data); int tca642x_set_dir(uchar chip, uint8_t gpio_bank, uint8_t reg_bit, uint8_t data); int tca642x_get_val(uchar chip, uint8_t gpio_bank); int tca642x_set_inital_state(uchar chip, struct tca642x_bank_info init_data[]); #endif /* __TCA642X_H_ */ |