Add qemu 2.4.0

[kvmfornfv.git] / qemu / tests / tmp105-test.c

diff --git a/qemu/tests/tmp105-test.c b/qemu/tests/tmp105-test.c
new file mode 100644 (file)
index 0000000..99db538
--- /dev/null
+++ b/qemu/tests/tmp105-test.c
@@ -0,0 +1,169 @@
+/*
+ * QTest testcase for the TMP105 temperature sensor
+ *
+ * Copyright (c) 2012 Andreas Färber
+ *
+ * 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"
+
+#define OMAP2_I2C_1_BASE 0x48070000
+
+#define TMP105_TEST_ID   "tmp105-test"
+#define TMP105_TEST_ADDR 0x49
+
+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];
+    i2c_send(i2c, addr, &reg, 1);
+    i2c_recv(i2c, addr, resp, 2);
+    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] = reg;
+    cmd[1] = value;
+    i2c_send(i2c, addr, cmd, 2);
+    i2c_recv(i2c, addr, resp, 1);
+    g_assert_cmphex(resp[0], ==, cmd[1]);
+}
+
+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] = 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;
+    int ret;
+
+    g_test_init(&argc, &argv, NULL);
+
+    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);
+
+    qtest_add_func("/tmp105/tx-rx", send_and_receive);
+
+    ret = g_test_run();
+
+    if (s) {
+        qtest_quit(s);
+    }
+    g_free(i2c);
+
+    return ret;
+}