78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
|
|
* 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 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("-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;
|
|
}
|