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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 <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 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);
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 void send_and_receive(void)
{
uint16_t value;
value = tmp105_get16(i2c, addr, TMP105_REG_TEMPERATURE);
g_assert_cmpuint(value, ==, 0);
/* reset */
tmp105_set8(i2c, addr, TMP105_REG_CONFIG, 0);
tmp105_set16(i2c, addr, TMP105_REG_T_LOW, 0x1234);
tmp105_set16(i2c, 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");
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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