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59 lines
1.8 KiB
C
59 lines
1.8 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 "libqos/libqtest.h"
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#include "libqos/i2c.h"
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#define DS1338_ADDR 0x68
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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 *obj, void *data, QGuestAllocator *alloc)
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{
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QI2CDevice *i2cdev = (QI2CDevice *)obj;
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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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i2c_read_block(i2cdev, 0, resp, sizeof(resp));
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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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static void ds1338_register_nodes(void)
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{
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QOSGraphEdgeOptions opts = {
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.extra_device_opts = "address=0x68"
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};
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add_qi2c_address(&opts, &(QI2CAddress) { DS1338_ADDR });
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qos_node_create_driver("ds1338", i2c_device_create);
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qos_node_consumes("ds1338", "i2c-bus", &opts);
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qos_add_test("tx-rx", "ds1338", send_and_receive, NULL);
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}
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libqos_init(ds1338_register_nodes);
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