diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/tmp105-test.c | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/tests/tmp105-test.c b/tests/tmp105-test.c index 0834219e35..20a1894ea5 100644 --- a/tests/tmp105-test.c +++ b/tests/tmp105-test.c @@ -20,39 +20,57 @@ static I2CAdapter *i2c; static uint8_t addr; -static void send_and_receive(void) +static uint16_t tmp105_get16(I2CAdapter *i2c, uint8_t addr, uint8_t reg) { - uint8_t cmd[3]; uint8_t resp[2]; - - cmd[0] = TMP105_REG_TEMPERATURE; - i2c_send(i2c, addr, cmd, 1); + i2c_send(i2c, addr, ®, 1); i2c_recv(i2c, addr, resp, 2); - g_assert_cmpuint(((uint16_t)resp[0] << 8) | resp[1], ==, 0); + return (resp[0] << 8) | resp[1]; +} + +static void tmp105_set8(I2CAdapter *i2c, uint8_t addr, uint8_t reg, + uint8_t value) +{ + uint8_t cmd[2]; + uint8_t resp[1]; - cmd[0] = TMP105_REG_CONFIG; - cmd[1] = 0x0; /* matches the reset value */ + cmd[0] = reg; + cmd[1] = value; i2c_send(i2c, addr, cmd, 2); i2c_recv(i2c, addr, resp, 1); g_assert_cmphex(resp[0], ==, cmd[1]); +} - cmd[0] = TMP105_REG_T_LOW; - cmd[1] = 0x12; - cmd[2] = 0x34; - i2c_send(i2c, addr, cmd, 3); - i2c_recv(i2c, addr, resp, 2); - g_assert_cmphex(resp[0], ==, cmd[1]); - g_assert_cmphex(resp[1], ==, cmd[2]); +static void tmp105_set16(I2CAdapter *i2c, uint8_t addr, uint8_t reg, + uint16_t value) +{ + uint8_t cmd[3]; + uint8_t resp[2]; - cmd[0] = TMP105_REG_T_HIGH; - cmd[1] = 0x42; - cmd[2] = 0x31; + cmd[0] = reg; + cmd[1] = value >> 8; + cmd[2] = value & 255; i2c_send(i2c, addr, cmd, 3); i2c_recv(i2c, addr, resp, 2); g_assert_cmphex(resp[0], ==, cmd[1]); g_assert_cmphex(resp[1], ==, cmd[2]); } + +static void send_and_receive(void) +{ + uint16_t value; + + value = tmp105_get16(i2c, addr, TMP105_REG_TEMPERATURE); + g_assert_cmpuint(value, ==, 0); + + /* reset */ + tmp105_set8(i2c, addr, TMP105_REG_CONFIG, 0); + + tmp105_set16(i2c, addr, TMP105_REG_T_LOW, 0x1234); + tmp105_set16(i2c, addr, TMP105_REG_T_HIGH, 0x4231); +} + int main(int argc, char **argv) { QTestState *s = NULL; |