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20#include "qemu/osdep.h"
21#include "libqos/libqtest.h"
22#include "libqos/i2c.h"
23
24#define DS1338_ADDR 0x68
25
26static inline uint8_t bcd2bin(uint8_t x)
27{
28 return ((x) & 0x0f) + ((x) >> 4) * 10;
29}
30
31static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
32{
33 QI2CDevice *i2cdev = (QI2CDevice *)obj;
34
35 uint8_t resp[7];
36 time_t now = time(NULL);
37 struct tm *tm_ptr = gmtime(&now);
38
39 i2c_read_block(i2cdev, 0, resp, sizeof(resp));
40
41
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
47static void ds1338_register_nodes(void)
48{
49 QOSGraphEdgeOptions opts = {
50 .extra_device_opts = "address=0x68"
51 };
52 add_qi2c_address(&opts, &(QI2CAddress) { DS1338_ADDR });
53
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);
57}
58libqos_init(ds1338_register_nodes);
59