1 /* 2 * QTest testcase for the DS1338 RTC 3 * 4 * Copyright (c) 2013 Jean-Christophe Dubois 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include "qemu/osdep.h" 21 #include "libqtest.h" 22 #include "libqos/i2c.h" 23 24 #define IMX25_I2C_0_BASE 0x43F80000 25 26 #define DS1338_ADDR 0x68 27 28 static I2CAdapter *i2c; 29 static uint8_t addr; 30 31 static inline uint8_t bcd2bin(uint8_t x) 32 { 33 return ((x) & 0x0f) + ((x) >> 4) * 10; 34 } 35 36 static void send_and_receive(void) 37 { 38 uint8_t resp[7]; 39 time_t now = time(NULL); 40 struct tm *tm_ptr = gmtime(&now); 41 42 i2c_read_block(i2c, addr, 0, resp, sizeof(resp)); 43 44 /* check retrieved time againt local time */ 45 g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday); 46 g_assert_cmpuint(bcd2bin(resp[5]), == , 1 + tm_ptr->tm_mon); 47 g_assert_cmpuint(2000 + bcd2bin(resp[6]), == , 1900 + tm_ptr->tm_year); 48 } 49 50 int main(int argc, char **argv) 51 { 52 QTestState *s = NULL; 53 int ret; 54 55 g_test_init(&argc, &argv, NULL); 56 57 s = qtest_start("-display none -machine imx25-pdk -device ds1338,address=0x68"); 58 i2c = imx_i2c_create(s, IMX25_I2C_0_BASE); 59 addr = DS1338_ADDR; 60 61 qtest_add_func("/ds1338/tx-rx", send_and_receive); 62 63 ret = g_test_run(); 64 65 qtest_quit(s); 66 g_free(i2c); 67 68 return ret; 69 } 70