/* * linux/sensor/lps331ap.h * * STMicroelectronics LPS331AP Pressure / Temperature Sensor module driver * * Copyright (C) 2010 STMicroelectronics- MSH - Motion Mems BU - Application Team * Matteo Dameno (matteo.dameno@st.com) * Carmine Iascone (carmine.iascone@st.com) * * Both authors are willing to be considered the contact and update points for * the driver. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * 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, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ /****************************************************************************** Revision 1.0.0 2011/Feb/14: first release moved to input/misc Revision 1.0.1 2011/Apr/04: xxx Revision 1.0.2 2011/Sep/15: corrects ord bug, forces BDU enable Revision 1.0.3 2011/Sep/15: introduces compansation params reading and sysfs file to get them Revision 1.0.4 2011/Dec/12: sets maximum allowable resolution modes dynamically with ODR; Revision 1.0.5 2012/Feb/29: introduces more compansation params and extends sysfs file content format to get them; reduces minimum polling period define; Revision 1.0.6 2012/Mar/30: introduces one more compansation param and extends sysfs file content format to get it. ******************************************************************************/ #ifndef __LPS331AP_H__ #define __LPS331AP_H__ #define LPS331AP_PRS_MIN_POLL_PERIOD_MS 40 #define SAD0L 0x00 #define SAD0H 0x01 #define LPS331AP_PRS_I2C_SADROOT 0x2E #define LPS331AP_PRS_I2C_SAD_L ((LPS331AP_PRS_I2C_SADROOT<<1)|SAD0L) #define LPS331AP_PRS_I2C_SAD_H ((LPS331AP_PRS_I2C_SADROOT<<1)|SAD0H) #define LPS331AP_PRS_DEV_NAME "lps331ap" /* Barometer and Termometer output data rate ODR */ #define LPS331AP_PRS_ODR_ONESH 0x00 /* one shot both */ #define LPS331AP_PRS_ODR_1_1 0x10 /* 1 Hz baro, 1 Hz term ODR */ #define LPS331AP_PRS_ODR_7_7 0x50 /* 7 Hz baro, 7 Hz term ODR */ #define LPS331AP_PRS_ODR_12_12 0x60 /* 12.5Hz baro, 12.5Hz term ODR */ #define LPS331AP_PRS_ODR_25_25 0x70 /* 25 Hz baro, 25 Hz term ODR */ /* Pressure section defines */ /* Pressure Sensor Operating Mode */ #define LPS331AP_PRS_ENABLE 0x01 #define LPS331AP_PRS_DISABLE 0x00 /* Output conversion factors */ #define SENSITIVITY_T 480 /* = 480 LSB/degrC */ #define SENSITIVITY_P 4096 /* = LSB/mbar */ #define SENSITIVITY_P_SHIFT 12 /* = 4096 LSB/mbar */ #define TEMPERATURE_OFFSET 42.5f /* = 42.5 degrC */ #ifdef __KERNEL__ struct lps331ap_platform_data { int irq; }; #endif /* __KERNEL__ */ #endif /* __LPS331AP_H__ */