2aad80eeb7
Introduce TYPE_ constant and cast macro. Move the state struct to the new header to allow for future embedding. Signed-off-by: Andreas Färber <andreas.faerber@web.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
|
|
* 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 "i2c.h"
|
|
#include "tmp105_regs.h"
|
|
|
|
#define TYPE_TMP105 "tmp105"
|
|
#define TMP105(obj) OBJECT_CHECK(TMP105State, (obj), TYPE_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
|
|
*/
|
|
typedef 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;
|
|
} TMP105State;
|
|
|
|
/**
|
|
* tmp105_set:
|
|
* @i2c: dispatcher to TMP105 hardware model
|
|
* @temp: temperature with 0.001 centigrades units in the range -40 C to +125 C
|
|
*
|
|
* Sets the temperature of the TMP105 hardware model.
|
|
*
|
|
* Bits 5 and 6 (value 32 and 64) in the register indexed by TMP105_REG_CONFIG
|
|
* determine the precision of the temperature. See Table 8 in the data sheet.
|
|
*
|
|
* @see_also: I2C_SLAVE macro
|
|
* @see_also: http://www.ti.com/lit/gpn/tmp105
|
|
*/
|
|
void tmp105_set(I2CSlave *i2c, int temp);
|
|
|
|
#endif
|