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Diffstat (limited to 'include/hw/sensor/tmp105.h')
| -rw-r--r-- | include/hw/sensor/tmp105.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/hw/sensor/tmp105.h b/include/hw/sensor/tmp105.h new file mode 100644 index 000000000..244e2989f --- /dev/null +++ b/include/hw/sensor/tmp105.h @@ -0,0 +1,55 @@ +/* + * Texas Instruments TMP105 Temperature Sensor + * + * Browse the data sheet: + * + * http://www.ti.com/lit/gpn/tmp105 + * + * Copyright (C) 2012 Alex Horn <alex.horn@cs.ox.ac.uk> + * Copyright (C) 2008-2012 Andrzej Zaborowski <balrogg@gmail.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * later. See the COPYING file in the top-level directory. + */ +#ifndef QEMU_TMP105_H +#define QEMU_TMP105_H + +#include "hw/i2c/i2c.h" +#include "hw/sensor/tmp105_regs.h" +#include "qom/object.h" + +#define TYPE_TMP105 "tmp105" +OBJECT_DECLARE_SIMPLE_TYPE(TMP105State, TMP105) + +/** + * TMP105State: + * @config: Bits 5 and 6 (value 32 and 64) determine the precision of the + * temperature. See Table 8 in the data sheet. + * + * @see_also: http://www.ti.com/lit/gpn/tmp105 + */ +struct TMP105State { + /*< private >*/ + I2CSlave i2c; + /*< public >*/ + + uint8_t len; + uint8_t buf[2]; + qemu_irq pin; + + uint8_t pointer; + uint8_t config; + int16_t temperature; + int16_t limit[2]; + int faults; + uint8_t alarm; + /* + * The TMP105 initially looks for a temperature rising above T_high; + * once this is detected, the condition it looks for next is the + * temperature falling below T_low. This flag is false when initially + * looking for T_high, true when looking for T_low. + */ + bool detect_falling; +}; + +#endif |