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tmp105-test: Test QOM property and precision

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This adds a regression test for commit
efdf6a56a7 (tmp105: Read temperature in
milli-celsius).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Paolo Bonzini 2014-03-31 18:26:35 +02:00 committed by Andreas Färber
parent a4ec5bb718
commit 7373fc7693
1 changed files with 76 additions and 3 deletions
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79
tests/tmp105-test.c
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@ -20,6 +20,14 @@
static I2CAdapter *i2c;
static uint16_t tmp105_get8(I2CAdapter *i2c, uint8_t addr, uint8_t reg)
{
uint8_t resp[1];
i2c_send(i2c, addr, &reg, 1);
i2c_recv(i2c, addr, resp, 1);
return resp[0];
}
static uint16_t tmp105_get16(I2CAdapter *i2c, uint8_t addr, uint8_t reg)
{
uint8_t resp[2];
@ -56,16 +64,81 @@ static void tmp105_set16(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
g_assert_cmphex(resp[1], ==, cmd[2]);
}
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");
QDECREF(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"));
QDECREF(response);
}
#define TMP105_PRECISION (1000/16)
static void send_and_receive(void)
{
uint16_t value;
value = tmp105_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE);
value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
g_assert_cmpuint(value, ==, 0);
/* reset */
tmp105_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0);
value = tmp105_get16(i2c, TMP105_TEST_ADDR, 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 = tmp105_get16(i2c, TMP105_TEST_ADDR, 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 */
tmp105_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x60);
value = tmp105_get8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG);
g_assert_cmphex(value, ==, 0x60);
value = tmp105_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x14f0);
/* Set precision to 9, 10, 11 bits. */
tmp105_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x00);
value = tmp105_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x1480);
tmp105_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x20);
value = tmp105_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x14c0);
tmp105_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x40);
value = tmp105_get16(i2c, TMP105_TEST_ADDR, 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);
tmp105_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x60);
value = tmp105_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x14f0);
tmp105_set16(i2c, TMP105_TEST_ADDR, TMP105_REG_T_LOW, 0x1234);
tmp105_set16(i2c, TMP105_TEST_ADDR, TMP105_REG_T_HIGH, 0x4231);