| Dan Murphy | 61c1775 | 2013-07-11 13:10:27 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 Texas Instruments, Inc. |
| 3 | * Author: Dan Murphy <dmurphy@ti.com> |
| 4 | * |
| 5 | * Derived work from the pca953x.c driver |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; either version 2 of |
| 10 | * the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 20 | * MA 02111-1307 USA |
| 21 | */ |
| 22 | |
| 23 | #ifndef __TCA642X_H_ |
| 24 | #define __TCA642X_H_ |
| 25 | |
| 26 | #ifdef CONFIG_CMD_TCA642X |
| 27 | enum { |
| 28 | TCA642X_CMD_INFO, |
| 29 | TCA642X_CMD_DEVICE, |
| 30 | TCA642X_CMD_OUTPUT, |
| 31 | TCA642X_CMD_INPUT, |
| 32 | TCA642X_CMD_INVERT, |
| 33 | }; |
| 34 | #endif |
| 35 | |
| 36 | #define TCA642X_OUT_LOW 0 |
| 37 | #define TCA642X_OUT_HIGH 1 |
| 38 | #define TCA642X_POL_NORMAL 0 |
| 39 | #define TCA642X_POL_INVERT 1 |
| 40 | #define TCA642X_DIR_OUT 0 |
| 41 | #define TCA642X_DIR_IN 1 |
| 42 | |
| 43 | /* Default to an address that hopefully won't corrupt other i2c devices */ |
| 44 | #ifndef CONFIG_SYS_I2C_TCA642X_ADDR |
| 45 | #define CONFIG_SYS_I2C_TCA642X_ADDR (~0) |
| 46 | #endif |
| 47 | |
| 48 | /* Default to an address that hopefully won't corrupt other i2c devices */ |
| 49 | #ifndef CONFIG_SYS_I2C_TCA642X_BUS_NUM |
| 50 | #define CONFIG_SYS_I2C_TCA642X_BUS_NUM (0) |
| 51 | #endif |
| 52 | |
| 53 | struct tca642x_bank_info { |
| 54 | uint8_t input_reg; |
| 55 | uint8_t output_reg; |
| 56 | uint8_t polarity_reg; |
| 57 | uint8_t configuration_reg; |
| 58 | }; |
| 59 | |
| 60 | int tca642x_set_val(uchar chip, uint8_t gpio_bank, |
| 61 | uint8_t reg_bit, uint8_t data); |
| 62 | int tca642x_set_pol(uchar chip, uint8_t gpio_bank, |
| 63 | uint8_t reg_bit, uint8_t data); |
| 64 | int tca642x_set_dir(uchar chip, uint8_t gpio_bank, |
| 65 | uint8_t reg_bit, uint8_t data); |
| 66 | int tca642x_get_val(uchar chip, uint8_t gpio_bank); |
| 67 | int tca642x_set_inital_state(uchar chip, struct tca642x_bank_info init_data[]); |
| 68 | |
| 69 | #endif /* __TCA642X_H_ */ |