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/*
* 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 "libqtest.h"
#include "libi2c.h"
#include "hw/tmp105_regs.h"
#include <glib.h>
#define OMAP2_I2C_1_BASE 0x48070000
#define N8X0_ADDR 0x48
static I2CAdapter *i2c;
static uint8_t addr;
static void send_and_receive(void)
{
uint8_t cmd[3];
uint8_t resp[2];
cmd[0] = TMP105_REG_TEMPERATURE;
i2c_send(i2c, addr, cmd, 1);
i2c_recv(i2c, addr, resp, 2);
g_assert_cmpuint(((uint16_t)resp[0] << 8) | resp[1], ==, 0);
cmd[0] = TMP105_REG_CONFIG;
cmd[1] = 0x0; /* matches the reset 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]);
cmd[0] = TMP105_REG_T_HIGH;
cmd[1] = 0x42;
cmd[2] = 0x31;
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]);
}
int main(int argc, char **argv)
{
QTestState *s = NULL;
int ret;
g_test_init(&argc, &argv, NULL);
s = qtest_start("-display none -machine n800");
i2c = omap_i2c_create(OMAP2_I2C_1_BASE);
addr = N8X0_ADDR;
qtest_add_func("/tmp105/tx-rx", send_and_receive);
ret = g_test_run();
if (s) {
qtest_quit(s);
}
g_free(i2c);
return ret;
}
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