120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
/*
|
|
* QTest testcase for the TMP105 temperature sensor
|
|
*
|
|
* Copyright (c) 2012 Andreas Färber
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
|
|
#include "libqtest-single.h"
|
|
#include "libqos/qgraph.h"
|
|
#include "libqos/i2c.h"
|
|
#include "qapi/qmp/qdict.h"
|
|
#include "hw/misc/tmp105_regs.h"
|
|
|
|
#define TMP105_TEST_ID "tmp105-test"
|
|
#define TMP105_TEST_ADDR 0x49
|
|
|
|
static int qmp_tmp105_get_temperature(const char *id)
|
|
{
|
|
QDict *response;
|
|
int ret;
|
|
|
|
response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
|
|
"'property': 'temperature' } }", id);
|
|
g_assert(qdict_haskey(response, "return"));
|
|
ret = qdict_get_int(response, "return");
|
|
qobject_unref(response);
|
|
return ret;
|
|
}
|
|
|
|
static void qmp_tmp105_set_temperature(const char *id, int value)
|
|
{
|
|
QDict *response;
|
|
|
|
response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
|
|
"'property': 'temperature', 'value': %d } }", id, value);
|
|
g_assert(qdict_haskey(response, "return"));
|
|
qobject_unref(response);
|
|
}
|
|
|
|
#define TMP105_PRECISION (1000/16)
|
|
static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
|
|
{
|
|
uint16_t value;
|
|
QI2CDevice *i2cdev = (QI2CDevice *)obj;
|
|
|
|
value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
|
|
g_assert_cmpuint(value, ==, 0);
|
|
|
|
value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
|
|
g_assert_cmphex(value, ==, 0);
|
|
|
|
qmp_tmp105_set_temperature(TMP105_TEST_ID, 20000);
|
|
value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
|
|
g_assert_cmpuint(value, ==, 20000);
|
|
|
|
value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
|
|
g_assert_cmphex(value, ==, 0x1400);
|
|
|
|
qmp_tmp105_set_temperature(TMP105_TEST_ID, 20938); /* 20 + 15/16 */
|
|
value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
|
|
g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2);
|
|
g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
|
|
|
|
/* Set config */
|
|
i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
|
|
value = i2c_get8(i2cdev, TMP105_REG_CONFIG);
|
|
g_assert_cmphex(value, ==, 0x60);
|
|
|
|
value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
|
|
g_assert_cmphex(value, ==, 0x14f0);
|
|
|
|
/* Set precision to 9, 10, 11 bits. */
|
|
i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x00);
|
|
g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x00);
|
|
value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
|
|
g_assert_cmphex(value, ==, 0x1480);
|
|
|
|
i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x20);
|
|
g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x20);
|
|
value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
|
|
g_assert_cmphex(value, ==, 0x14c0);
|
|
|
|
i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x40);
|
|
g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x40);
|
|
value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
|
|
g_assert_cmphex(value, ==, 0x14e0);
|
|
|
|
/* stored precision remains the same */
|
|
value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
|
|
g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2);
|
|
g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
|
|
|
|
i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
|
|
g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x60);
|
|
value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
|
|
g_assert_cmphex(value, ==, 0x14f0);
|
|
|
|
i2c_set16(i2cdev, TMP105_REG_T_LOW, 0x1234);
|
|
g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_LOW), ==, 0x1234);
|
|
i2c_set16(i2cdev, TMP105_REG_T_HIGH, 0x4231);
|
|
g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_HIGH), ==, 0x4231);
|
|
}
|
|
|
|
static void tmp105_register_nodes(void)
|
|
{
|
|
QOSGraphEdgeOptions opts = {
|
|
.extra_device_opts = "id=" TMP105_TEST_ID ",address=0x49"
|
|
};
|
|
add_qi2c_address(&opts, &(QI2CAddress) { 0x49 });
|
|
|
|
qos_node_create_driver("tmp105", i2c_device_create);
|
|
qos_node_consumes("tmp105", "i2c-bus", &opts);
|
|
|
|
qos_add_test("tx-rx", "tmp105", send_and_receive, NULL);
|
|
}
|
|
libqos_init(tmp105_register_nodes);
|