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#ifndef I2C_DS_1621_DRIVER_H
#define I2C_DS_1621_DRIVER_H
/* Trivial i2c driver for the maxim DS1621 temperature sensor;
* just implements reading constant conversions with 8-bit
* resolution.
* Demonstrates the implementation of a i2c high-level driver.
*/
/*
* Authorship
* ----------
* This software was created by
* Till Straumann <strauman@slac.stanford.edu>, 2005,
* Stanford Linear Accelerator Center, Stanford University.
*
* Acknowledgement of sponsorship
* ------------------------------
* This software was produced by
* the Stanford Linear Accelerator Center, Stanford University,
* under Contract DE-AC03-76SFO0515 with the Department of Energy.
*
* Government disclaimer of liability
* ----------------------------------
* Neither the United States nor the United States Department of Energy,
* nor any of their employees, makes any warranty, express or implied, or
* assumes any legal liability or responsibility for the accuracy,
* completeness, or usefulness of any data, apparatus, product, or process
* disclosed, or represents that its use would not infringe privately owned
* rights.
*
* Stanford disclaimer of liability
* --------------------------------
* Stanford University makes no representations or warranties, express or
* implied, nor assumes any liability for the use of this software.
*
* Stanford disclaimer of copyright
* --------------------------------
* Stanford University, owner of the copyright, hereby disclaims its
* copyright and all other rights in this software. Hence, anyone may
* freely use it for any purpose without restriction.
*
* Maintenance of notices
* ----------------------
* In the interest of clarity regarding the origin and status of this
* SLAC software, this and all the preceding Stanford University notices
* are to remain affixed to any copy or derivative of this software made
* or distributed by the recipient and are to be affixed to any copy of
* software made or distributed by the recipient that contains a copy or
* derivative of this software.
*
* ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
*/
#define DS1621_CMD_READ_TEMP 0xaa
#define DS1621_CMD_CSR_ACCESS 0xac
#define DS1621_CMD_START_CONV 0xee
/* CSR bits */
#define DS1621_CSR_DONE (1<<7)
#define DS1621_CSR_TEMP_HI (1<<6) /* T >= hi register */
#define DS1621_CSR_TEMP_LO (1<<5) /* T <= lo register */
#define DS1621_CSR_NVMEM_BSY (1<<4) /* non-volatile memory busy */
#define DS1621_CSR_OUT_POL (1<<1) /* Thermostat output active polarity */
#define DS1621_CSR_1SHOT (1<<0) /* Oneshot mode */
#include <rtems.h>
#include <rtems/libi2c.h>
#ifdef __cplusplus
extern "C" {
#endif
/* for registration with libi2c */
extern rtems_libi2c_drv_t *i2c_ds1621_driver_descriptor;
#ifdef __cplusplus
}
#endif
#endif
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