3a0b75880a
Per datasheet, "HIGH AND LOW LIMIT REGISTERS", the lower 4 bit of the limit registers are unused and always report 0. The lower 4 bit should not be used for temperature comparisons, so mask the unused bits before storing the limits. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20240906154911.86803-6-philmd@linaro.org> [PMD: Update tests/qtest/ files] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/*
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* QTest testcase for the TMP105 temperature sensor
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*
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* Copyright (c) 2012 Andreas Färber
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "libqtest-single.h"
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#include "libqos/qgraph.h"
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#include "libqos/i2c.h"
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#include "qapi/qmp/qdict.h"
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#include "hw/sensor/tmp105_regs.h"
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#define TMP105_TEST_ID "tmp105-test"
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#define TMP105_TEST_ADDR 0x49
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static int qmp_tmp105_get_temperature(const char *id)
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{
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QDict *response;
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int ret;
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response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
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"'property': 'temperature' } }", id);
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g_assert(qdict_haskey(response, "return"));
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ret = qdict_get_int(response, "return");
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qobject_unref(response);
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return ret;
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}
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static void qmp_tmp105_set_temperature(const char *id, int value)
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{
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QDict *response;
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response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
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"'property': 'temperature', 'value': %d } }", id, value);
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g_assert(qdict_haskey(response, "return"));
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qobject_unref(response);
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}
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#define TMP105_PRECISION (1000/16)
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static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
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{
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uint16_t value;
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QI2CDevice *i2cdev = (QI2CDevice *)obj;
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value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
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g_assert_cmpuint(value, ==, 0);
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value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
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g_assert_cmphex(value, ==, 0);
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qmp_tmp105_set_temperature(TMP105_TEST_ID, 20000);
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value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
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g_assert_cmpuint(value, ==, 20000);
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value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
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g_assert_cmphex(value, ==, 0x1400);
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qmp_tmp105_set_temperature(TMP105_TEST_ID, 20938); /* 20 + 15/16 */
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value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
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g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2);
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g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
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/* Set config */
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i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
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value = i2c_get8(i2cdev, TMP105_REG_CONFIG);
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g_assert_cmphex(value, ==, 0x60);
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value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
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g_assert_cmphex(value, ==, 0x14f0);
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/* Set precision to 9, 10, 11 bits. */
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i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x00);
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g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x00);
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value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
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g_assert_cmphex(value, ==, 0x1480);
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i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x20);
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g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x20);
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value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
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g_assert_cmphex(value, ==, 0x14c0);
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i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x40);
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g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x40);
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value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
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g_assert_cmphex(value, ==, 0x14e0);
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/* stored precision remains the same */
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value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
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g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2);
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g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
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i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
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g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x60);
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value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
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g_assert_cmphex(value, ==, 0x14f0);
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i2c_set16(i2cdev, TMP105_REG_T_LOW, 0x1234);
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g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_LOW), ==, 0x1230);
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i2c_set16(i2cdev, TMP105_REG_T_HIGH, 0x4231);
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g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_HIGH), ==, 0x4230);
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}
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static void tmp105_register_nodes(void)
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{
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QOSGraphEdgeOptions opts = {
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.extra_device_opts = "id=" TMP105_TEST_ID ",address=0x49"
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};
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add_qi2c_address(&opts, &(QI2CAddress) { 0x49 });
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qos_node_create_driver("tmp105", i2c_device_create);
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qos_node_consumes("tmp105", "i2c-bus", &opts);
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qos_add_test("tx-rx", "tmp105", send_and_receive, NULL);
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}
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libqos_init(tmp105_register_nodes);
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