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// *************************************************************************************************
//
// Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
//
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 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.
//
// Neither the name of Texas Instruments Incorporated 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.
//
// *************************************************************************************************
#ifndef VTI_PS_H_
#define VTI_PS_H_
// *************************************************************************************************
// Include section
// *************************************************************************************************
// Prototypes section
extern void ps_init(void);
extern void ps_start(void);
extern void ps_stop(void);
extern u32 ps_get_pa(void);
extern u16 ps_get_temp(void);
extern void init_pressure_table(void);
extern void update_pressure_table(s16 href, u32 p_meas, u16 t_meas);
#ifndef FIXEDPOINT
extern s16 conv_pa_to_meter(u32 p_meas, u16 t_meas);
#else
extern s16 conv_pa_to_altitude(u32 p_meas, u16 t_meas);
#endif
// *************************************************************************************************
// Defines section
// Port and pin resource for TWI interface to pressure sensor
// SCL=PJ.3, SDA=PJ.2, DRDY=P2.6
#define PS_TWI_IN (PJIN)
#define PS_TWI_OUT (PJOUT)
#define PS_TWI_DIR (PJDIR)
#define PS_TWI_REN (PJREN)
#define PS_SCL_PIN (BIT3)
#define PS_SDA_PIN (BIT2)
// Port, pin and interrupt resource for interrupt from acceleration sensor, DRDY=P2.6
#define PS_INT_IN (P2IN)
#define PS_INT_OUT (P2OUT)
#define PS_INT_DIR (P2DIR)
#define PS_INT_IE (P2IE)
#define PS_INT_IES (P2IES)
#define PS_INT_IFG (P2IFG)
#define PS_INT_PIN (BIT6)
// TWI defines
#define PS_TWI_WRITE (0u)
#define PS_TWI_READ (1u)
#define PS_TWI_SEND_START (0u)
#define PS_TWI_SEND_RESTART (1u)
#define PS_TWI_SEND_STOP (2u)
#define PS_TWI_CHECK_ACK (3u)
#define PS_TWI_8BIT_ACCESS (0u)
#define PS_TWI_16BIT_ACCESS (1u)
#define PS_TWI_SCL_HI { PS_TWI_OUT |= PS_SCL_PIN; }
#define PS_TWI_SCL_LO { PS_TWI_OUT &= ~PS_SCL_PIN; }
#define PS_TWI_SDA_HI { PS_TWI_OUT |= PS_SDA_PIN; }
#define PS_TWI_SDA_LO { PS_TWI_OUT &= ~PS_SDA_PIN; }
#define PS_TWI_SDA_IN { PS_TWI_OUT |= PS_SDA_PIN; PS_TWI_DIR &= ~PS_SDA_PIN; }
#define PS_TWI_SDA_OUT { PS_TWI_DIR |= PS_SDA_PIN; }
// *************************************************************************************************
// Global Variable section
// *************************************************************************************************
// Extern section
#endif /*VTI_PS_H_*/