100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/* HopeRF Electronic HP206C precision barometer and altimeter header
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*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef _SENSOR_HP206C_H_
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#define _SENSOR_HP206C_H_
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#include <misc/util.h>
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#define HP206C_I2C_ADDRESS 0x76
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/* HP206C configuration registers */
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#define HP206C_REG_ALT_OFF_LSB 0x00
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#define HP206C_REG_ALT_OFF_MSB 0x01
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#define HP206C_REG_PA_H_TH_LSB 0x02
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#define HP206C_REG_PA_H_TH_MSB 0x03
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#define HP206C_REG_PA_M_TH_LSB 0x04
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#define HP206C_REG_PA_M_TH_MSB 0x05
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#define HP206C_REG_PA_L_TH_LSB 0x06
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#define HP206C_REG_PA_L_TH_MSB 0x07
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#define HP206C_REG_T_H_TH 0x08
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#define HP206C_REG_T_M_TH 0x09
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#define HP206C_REG_T_L_TH 0x0A
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#define HP206C_REG_INT_EN 0x0B
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#define HP206C_REG_INT_GFG 0x0C
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#define HP206C_REG_INT_SRC 0x0D
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#define HP206C_REG_INT_DIR 0x0E
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#define HP206C_REG_PARA 0x0F
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/* HP206C commands */
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#define HP206C_CMD_SOFT_RST 0x06
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#define HP206C_CMD_ADC_CVT 0x40
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#define HP206C_CMD_READ_PT 0x10
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#define HP206C_CMD_READ_AT 0x11
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#define HP206C_CMD_READ_P 0x30
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#define HP206C_CMD_READ_A 0x31
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#define HP206C_CMD_READ_T 0x32
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#define HP206C_CMD_ANA_CAL 0x28
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#define HP206C_CMD_READ_REG 0x80
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#define HP206C_CMD_WRITE_REG 0xC0
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#define HP206C_REG_ADDR_MASK 0x3F
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/* HP206C_REG_INT_SRC */
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#define HP206C_T_WIN BIT(0)
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#define HP206C_PA_WIN BIT(1)
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#define HP206C_T_TRAV BIT(2)
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#define HP206C_PA_TRAV BIT(3)
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#define HP206C_T_RDY BIT(4)
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#define HP206C_PA_RDY BIT(5)
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#define HP206C_DEV_RDY BIT(6)
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#define HP206C_TH_ERR BIT(7)
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/* HP206C_REG_PARA */
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#define HP206C_COMPENSATION_EN BIT(7)
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/* default settings, based on menuconfig options */
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#if defined(CONFIG_HP206C_OSR_RUNTIME)
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# define HP206C_DEFAULT_OSR 4096
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#else
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# define HP206C_DEFAULT_OSR CONFIG_HP206C_OSR
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#endif
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#if defined(CONFIG_HP206C_ALT_OFFSET_RUNTIME)
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# define HP206C_DEFAULT_ALT_OFFSET 0
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#else
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# define HP206C_DEFAULT_ALT_OFFSET CONFIG_HP206C_ALT_OFFSET
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#endif
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/* end of default settings */
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struct hp206c_device_data {
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struct device *i2c;
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#ifdef CONFIG_NANO_TIMERS
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#if CONFIG_SYS_CLOCK_TICKS_PER_SEC < 2000
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#error "SYS_CLOCK_TICKS_PER_SEC >= 2000 needed for better timeouts granularity."
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#endif
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struct k_timer tmr;
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#endif
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uint8_t osr;
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};
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#define SYS_LOG_DOMAIN "HP206C"
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#define SYS_LOG_LEVEL CONFIG_SYS_LOG_SENSOR_LEVEL
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#include <logging/sys_log.h>
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#endif /* _SENSOR_HP206C_H_ */
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