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Diffstat (limited to 'src/drivers/ms5611/ms5611.h')
| -rw-r--r-- | src/drivers/ms5611/ms5611.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/drivers/ms5611/ms5611.h b/src/drivers/ms5611/ms5611.h new file mode 100644 index 000000000..76fb84de8 --- /dev/null +++ b/src/drivers/ms5611/ms5611.h @@ -0,0 +1,85 @@ +/**************************************************************************** + * + * Copyright (C) 2012-2013 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file ms5611.h + * + * Shared defines for the ms5611 driver. + */ + +#define ADDR_RESET_CMD 0x1E /* write to this address to reset chip */ +#define ADDR_CMD_CONVERT_D1 0x48 /* write to this address to start temperature conversion */ +#define ADDR_CMD_CONVERT_D2 0x58 /* write to this address to start pressure conversion */ +#define ADDR_DATA 0x00 /* address of 3 bytes / 32bit pressure data */ +#define ADDR_PROM_SETUP 0xA0 /* address of 8x 2 bytes factory and calibration data */ +#define ADDR_PROM_C1 0xA2 /* address of 6x 2 bytes calibration data */ + +/* interface ioctls */ +#define IOCTL_RESET 2 +#define IOCTL_MEASURE 3 + +namespace ms5611 +{ + +/** + * Calibration PROM as reported by the device. + */ +#pragma pack(push,1) +struct prom_s { + uint16_t factory_setup; + uint16_t c1_pressure_sens; + uint16_t c2_pressure_offset; + uint16_t c3_temp_coeff_pres_sens; + uint16_t c4_temp_coeff_pres_offset; + uint16_t c5_reference_temp; + uint16_t c6_temp_coeff_temp; + uint16_t serial_and_crc; +}; + +/** + * Grody hack for crc4() + */ +union prom_u { + uint16_t c[8]; + prom_s s; +}; +#pragma pack(pop) + +extern bool crc4(uint16_t *n_prom); + +} /* namespace */ + +/* interface factories */ +extern device::Device *MS5611_spi_interface(ms5611::prom_u &prom_buf) weak_function; +extern device::Device *MS5611_i2c_interface(ms5611::prom_u &prom_buf) weak_function; + |