diff options
Diffstat (limited to 'tests/tmp105-test.c')
| -rw-r--r-- | tests/tmp105-test.c | 141 |
1 files changed, 117 insertions, 24 deletions
diff --git a/tests/tmp105-test.c b/tests/tmp105-test.c index fecd6dcd7..15ddaf38d 100644 --- a/tests/tmp105-test.c +++ b/tests/tmp105-test.c @@ -6,52 +6,144 @@ * 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 <glib.h> + #include "libqtest.h" #include "libqos/i2c.h" #include "hw/misc/tmp105_regs.h" -#include <glib.h> - #define OMAP2_I2C_1_BASE 0x48070000 -#define N8X0_ADDR 0x48 +#define TMP105_TEST_ID "tmp105-test" +#define TMP105_TEST_ADDR 0x49 static I2CAdapter *i2c; -static uint8_t addr; -static void send_and_receive(void) +static uint16_t tmp105_get8(I2CAdapter *i2c, uint8_t addr, uint8_t reg) { - uint8_t cmd[3]; - uint8_t resp[2]; + uint8_t resp[1]; + i2c_send(i2c, addr, ®, 1); + i2c_recv(i2c, addr, resp, 1); + return resp[0]; +} - cmd[0] = TMP105_REG_TEMPERATURE; - i2c_send(i2c, addr, cmd, 1); +static uint16_t tmp105_get16(I2CAdapter *i2c, uint8_t addr, uint8_t reg) +{ + uint8_t resp[2]; + 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]; +} - cmd[0] = TMP105_REG_CONFIG; - cmd[1] = 0x0; /* matches the reset value */ +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] = 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 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 = qmp_tmp105_get_temperature(TMP105_TEST_ID); + g_assert_cmpuint(value, ==, 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); +} + int main(int argc, char **argv) { QTestState *s = NULL; @@ -59,9 +151,10 @@ int main(int argc, char **argv) g_test_init(&argc, &argv, NULL); - s = qtest_start("-display none -machine n800"); + s = qtest_start("-machine n800 " + "-device tmp105,bus=i2c-bus.0,id=" TMP105_TEST_ID + ",address=0x49"); i2c = omap_i2c_create(OMAP2_I2C_1_BASE); - addr = N8X0_ADDR; qtest_add_func("/tmp105/tx-rx", send_and_receive); |