diff options
Diffstat (limited to 'tests/tmp105-test.c')
| -rw-r--r-- | tests/tmp105-test.c | 79 |
1 files changed, 76 insertions, 3 deletions
diff --git a/tests/tmp105-test.c b/tests/tmp105-test.c index 4e640b45f3..15ddaf38d4 100644 --- a/tests/tmp105-test.c +++ b/tests/tmp105-test.c @@ -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, ®, 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); |