hw/misc/tmp105.h

   1 /*
   2  * Texas Instruments TMP105 Temperature Sensor
   3  *
   4  * Browse the data sheet:
   5  *
   6  *    http://www.ti.com/lit/gpn/tmp105
   7  *
   8  * Copyright (C) 2012 Alex Horn <alex.horn@cs.ox.ac.uk>
   9  * Copyright (C) 2008-2012 Andrzej Zaborowski <balrogg@gmail.com>
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2 or
  12  * later. See the COPYING file in the top-level directory.
  13  */
  14 #ifndef QEMU_TMP105_H
  15 #define QEMU_TMP105_H
  16
  17 #include "hw/i2c/i2c.h"
  18 #include "hw/misc/tmp105_regs.h"
  19 #include "qom/object.h"
  20
  21 #define TYPE_TMP105 "tmp105"
  22 typedef struct TMP105State TMP105State;
  23 DECLARE_INSTANCE_CHECKER(TMP105State, TMP105,
  24                          TYPE_TMP105)
  25
  26 /**
  27  * TMP105State:
  28  * @config: Bits 5 and 6 (value 32 and 64) determine the precision of the
  29  * temperature. See Table 8 in the data sheet.
  30  *
  31  * @see_also: http://www.ti.com/lit/gpn/tmp105
  32  */
  33 struct TMP105State {
  34     /*< private >*/
  35     I2CSlave i2c;
  36     /*< public >*/
  37
  38     uint8_t len;
  39     uint8_t buf[2];
  40     qemu_irq pin;
  41
  42     uint8_t pointer;
  43     uint8_t config;
  44     int16_t temperature;
  45     int16_t limit[2];
  46     int faults;
  47     uint8_t alarm;
  48 };
  49
  50 #endif