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7f398627 JCD |
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 | ||
681c28a3 | 20 | #include "qemu/osdep.h" |
7f398627 JCD |
21 | #include "libqtest.h" |
22 | #include "libqos/i2c.h" | |
23 | ||
7f398627 JCD |
24 | #define DS1338_ADDR 0x68 |
25 | ||
7f398627 JCD |
26 | static inline uint8_t bcd2bin(uint8_t x) |
27 | { | |
28 | return ((x) & 0x0f) + ((x) >> 4) * 10; | |
29 | } | |
30 | ||
8130dbcb | 31 | static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc) |
7f398627 | 32 | { |
8130dbcb | 33 | QI2CDevice *i2cdev = (QI2CDevice *)obj; |
8130dbcb | 34 | |
7f398627 JCD |
35 | uint8_t resp[7]; |
36 | time_t now = time(NULL); | |
37 | struct tm *tm_ptr = gmtime(&now); | |
38 | ||
06599472 | 39 | i2c_read_block(i2cdev, 0, resp, sizeof(resp)); |
7f398627 JCD |
40 | |
41 | /* check retrieved time againt local time */ | |
42 | g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday); | |
43 | g_assert_cmpuint(bcd2bin(resp[5]), == , 1 + tm_ptr->tm_mon); | |
44 | g_assert_cmpuint(2000 + bcd2bin(resp[6]), == , 1900 + tm_ptr->tm_year); | |
45 | } | |
46 | ||
8130dbcb | 47 | static void ds1338_register_nodes(void) |
7f398627 | 48 | { |
8130dbcb PB |
49 | QOSGraphEdgeOptions opts = { |
50 | .extra_device_opts = "address=0x68" | |
51 | }; | |
06599472 | 52 | add_qi2c_address(&opts, &(QI2CAddress) { DS1338_ADDR }); |
7f398627 | 53 | |
8130dbcb PB |
54 | qos_node_create_driver("ds1338", i2c_device_create); |
55 | qos_node_consumes("ds1338", "i2c-bus", &opts); | |
56 | qos_add_test("tx-rx", "ds1338", send_and_receive, NULL); | |
7f398627 | 57 | } |
8130dbcb | 58 | libqos_init(ds1338_register_nodes); |