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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_ */
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