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