80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
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* Copyright (C) EdgeTx
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*
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* Based on code named
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* opentx - https://github.com/opentx/opentx
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#pragma once
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#include "hal/i2c_driver.h"
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/* WARNING
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Ti PCA95 chip do NOT number pin sequentially, it goes PIN0 to PIN7 then PIN10 to PIN17.
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So when schematic indicate P10, it is PIN_8 in the following table
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*/
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#define PCA95XX_PIN_0 (1 << 0)
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#define PCA95XX_PIN_1 (1 << 1)
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#define PCA95XX_PIN_2 (1 << 2)
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#define PCA95XX_PIN_3 (1 << 3)
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#define PCA95XX_PIN_4 (1 << 4)
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#define PCA95XX_PIN_5 (1 << 5)
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#define PCA95XX_PIN_6 (1 << 6)
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#define PCA95XX_PIN_7 (1 << 7)
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#define PCA95XX_PIN_8 (1 << 8)
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#define PCA95XX_PIN_9 (1 << 9)
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#define PCA95XX_PIN_10 (1 << 10)
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#define PCA95XX_PIN_11 (1 << 11)
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#define PCA95XX_PIN_12 (1 << 12)
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#define PCA95XX_PIN_13 (1 << 13)
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#define PCA95XX_PIN_14 (1 << 14)
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#define PCA95XX_PIN_15 (1 << 15)
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#define PCA95XX_PIN_16 (1 << 16)
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#define PCA95XX_PIN_17 (1 << 17)
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#define PCA95XX_P0 PCA95XX_PIN_0
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#define PCA95XX_P1 PCA95XX_PIN_1
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#define PCA95XX_P2 PCA95XX_PIN_2
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#define PCA95XX_P3 PCA95XX_PIN_3
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#define PCA95XX_P4 PCA95XX_PIN_4
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#define PCA95XX_P5 PCA95XX_PIN_5
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#define PCA95XX_P6 PCA95XX_PIN_6
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#define PCA95XX_P7 PCA95XX_PIN_7
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#define PCA95XX_P10 PCA95XX_PIN_8
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#define PCA95XX_P11 PCA95XX_PIN_9
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#define PCA95XX_P12 PCA95XX_PIN_10
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#define PCA95XX_P13 PCA95XX_PIN_11
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#define PCA95XX_P14 PCA95XX_PIN_12
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#define PCA95XX_P15 PCA95XX_PIN_13
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#define PCA95XX_P16 PCA95XX_PIN_14
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#define PCA95XX_P17 PCA95XX_PIN_15
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typedef struct {
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etx_i2c_bus_t bus;
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uint16_t addr;
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uint16_t polarity;
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uint16_t direction;
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uint16_t output;
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} pca95xx_t;
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int pca95xx_init(pca95xx_t* dev, etx_i2c_bus_t bus, uint16_t addr);
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int pca95xx_set_direction(pca95xx_t* dev, uint16_t mask, uint16_t dir);
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int pca95xx_set_polarity(pca95xx_t* dev, uint16_t mask, uint16_t dir);
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int pca95xx_write(pca95xx_t* dev, uint16_t mask, uint16_t value);
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int pca95xx_read(pca95xx_t* dev, uint16_t mask, uint16_t* value);
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