From ad2bb529c795be066b279f52bebec03257992fc2 Mon Sep 17 00:00:00 2001 From: yiancar Date: Wed, 15 Aug 2018 08:19:38 +0300 Subject: 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 --- drivers/arm/i2c_master.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 drivers/arm/i2c_master.h (limited to 'drivers/arm/i2c_master.h') diff --git a/drivers/arm/i2c_master.h b/drivers/arm/i2c_master.h new file mode 100644 index 000000000..9d51245be --- /dev/null +++ b/drivers/arm/i2c_master.h @@ -0,0 +1,39 @@ +/* Copyright 2018 Jack Humbert + * Copyright 2018 Yiancar + * + * This program is free sofare: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Sofare 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, see . + */ + +/* This library follows the convention of the AVR i2c_master library. + * As a result addresses are expected to be already shifted (addr << 1). + * I2CD1 is the default driver which corresponds to pins B6 and B7. This + * can be changed. + * Please ensure that HAL_USE_I2C is TRUE in the halconf.h file and that + * STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file. + */ + +#include "ch.h" +#include + +#ifndef I2C_DRIVER + #define I2C_DRIVER I2CD1 +#endif + +void i2c_init(void); +uint8_t i2c_start(uint8_t address); +uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout); +uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout); +uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); +uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); +void i2c_stop(void); -- cgit v1.2.3