From fa1bb24f1f8aaf8e598a3bc53d90922e445fe59a Mon Sep 17 00:00:00 2001 From: iximeow Date: Thu, 14 Mar 2019 15:52:30 -0700 Subject: add qhy headers......... --- include/qhy/i2c.h | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 include/qhy/i2c.h (limited to 'include/qhy/i2c.h') diff --git a/include/qhy/i2c.h b/include/qhy/i2c.h new file mode 100644 index 0000000..0861239 --- /dev/null +++ b/include/qhy/i2c.h @@ -0,0 +1,60 @@ +/*___________________________________________________ + | _____ _____ _ _ _ | + | | __ \ | __ (_) | | | | + | | |__) |__ _ __ __ _ _ _| |__) || | ___ | |_ | + | | ___/ _ \ '_ \ / _` | | | | ___/ | |/ _ \| __| | + | | | | __/ | | | (_| | |_| | | | | | (_) | |_ | + | |_| \___|_| |_|\__, |\__,_|_| |_|_|\___/ \__| | + | __/ | | + | GNU/Linux based |___/ Multi-Rotor UAV Autopilot | + |___________________________________________________| + + Threadsafe Linux I2C Interface + + Copyright (C) 2013 Tobias Simon, Ilmenau University of Technology + + 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. */ + + +#ifndef __I2C_H__ +#define __I2C_H__ + + +#include +#include + + +/* bus type definition: */ +typedef int i2c_bus_t; + + +/* device type definition: */ +typedef struct +{ + i2c_bus_t *bus; + uint8_t addr; +} +i2c_dev_t; + + +int i2c_bus_open(i2c_bus_t *bus, char *path); +int i2c_bus_close(i2c_bus_t *bus); +void i2c_dev_init(i2c_dev_t *dev, i2c_bus_t *bus, uint8_t addr); +int i2c_xfer(i2c_dev_t *dev, uint8_t len_wr, uint8_t *wr_data, uint8_t len_rd, uint8_t *rd_data); +int i2c_write(i2c_dev_t *dev, uint8_t val); +int i2c_write_reg(i2c_dev_t *dev, uint8_t reg, uint8_t val); +int i2c_read(i2c_dev_t *dev); +int i2c_read_reg(i2c_dev_t *dev, uint8_t reg); +int i2c_read_block_reg(i2c_dev_t *dev, uint8_t reg, uint8_t *buf, size_t len); + + +#endif /* __I2C_H__ */ + -- cgit v1.1