/* * QTest testcase for the DS1338 RTC * * Copyright (c) 2013 Jean-Christophe Dubois * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, see <http://www.gnu.org/licenses/>. */ #include "qemu/osdep.h" #include "libqtest.h" #include "libqos/i2c.h" #define IMX25_I2C_0_BASE 0x43F80000 #define DS1338_ADDR 0x68 static I2CAdapter *i2c; static uint8_t addr; static inline uint8_t bcd2bin(uint8_t x) { return ((x) & 0x0f) + ((x) >> 4) * 10; } static void send_and_receive(void) { uint8_t cmd[1]; uint8_t resp[7]; time_t now = time(NULL); struct tm *tm_ptr = gmtime(&now); /* reset the index in the RTC memory */ cmd[0] = 0; i2c_send(i2c, addr, cmd, 1); /* retrieve the date */ i2c_recv(i2c, addr, resp, 7); /* check retrieved time againt local time */ g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday); g_assert_cmpuint(bcd2bin(resp[5]), == , 1 + tm_ptr->tm_mon); g_assert_cmpuint(2000 + bcd2bin(resp[6]), == , 1900 + tm_ptr->tm_year); } int main(int argc, char **argv) { QTestState *s = NULL; int ret; g_test_init(&argc, &argv, NULL); s = qtest_start("-display none -machine imx25-pdk"); i2c = imx_i2c_create(s, IMX25_I2C_0_BASE); addr = DS1338_ADDR; qtest_add_func("/ds1338/tx-rx", send_and_receive); ret = g_test_run(); qtest_quit(s); g_free(i2c); return ret; }