Rgb matrix arm (#3648)
* Addition of I2C master driver for STM32, Generalization of ISSI3731 driver - Addition of an i2c_master driver for STM32 to replicate expectations of AVR driver. - Moved ISSI3731 driver one level up to make it accesible by both architectures. - Renamed ISSI3731 functions to a more general name for preparation of other ISSI drivers. - Added compiler directives where necessary to differenciate each architecture. * converted tabs to spaces
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drivers/arm/i2c_master.h
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drivers/arm/i2c_master.h
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/* Copyright 2018 Jack Humbert
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* Copyright 2018 Yiancar
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*
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* This program is free sofare: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Sofare Foundation, either version 2 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* This library follows the convention of the AVR i2c_master library.
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* As a result addresses are expected to be already shifted (addr << 1).
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* I2CD1 is the default driver which corresponds to pins B6 and B7. This
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* can be changed.
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* Please ensure that HAL_USE_I2C is TRUE in the halconf.h file and that
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* STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file.
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*/
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#include "ch.h"
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#include <hal.h>
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#ifndef I2C_DRIVER
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#define I2C_DRIVER I2CD1
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#endif
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void i2c_init(void);
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uint8_t i2c_start(uint8_t address);
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uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
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uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
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uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
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uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
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void i2c_stop(void);
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