2 * QTest testcase for the PCA9552 LED blinker
4 * Copyright (c) 2017-2018, IBM Corporation.
6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
7 * See the COPYING file in the top-level directory.
10 #include "qemu/osdep.h"
13 #include "libqos/qgraph.h"
14 #include "libqos/i2c.h"
15 #include "hw/misc/pca9552_regs.h"
17 #define PCA9552_TEST_ID "pca9552-test"
18 #define PCA9552_TEST_ADDR 0x60
20 static void pca9552_init(QI2CDevice *i2cdev)
22 /* Switch on LEDs 0 and 12 */
23 i2c_set8(i2cdev, PCA9552_LS0, 0x54);
24 i2c_set8(i2cdev, PCA9552_LS3, 0x54);
27 static void receive_autoinc(void *obj, void *data, QGuestAllocator *alloc)
29 QI2CDevice *i2cdev = (QI2CDevice *)obj;
31 uint8_t reg = PCA9552_LS0 | PCA9552_AUTOINC;
35 qi2c_send(i2cdev, ®, 1);
38 qi2c_recv(i2cdev, &resp, 1);
39 g_assert_cmphex(resp, ==, 0x54);
42 qi2c_recv(i2cdev, &resp, 1);
43 g_assert_cmphex(resp, ==, 0x55);
46 qi2c_recv(i2cdev, &resp, 1);
47 g_assert_cmphex(resp, ==, 0x55);
50 qi2c_recv(i2cdev, &resp, 1);
51 g_assert_cmphex(resp, ==, 0x54);
54 static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
56 QI2CDevice *i2cdev = (QI2CDevice *)obj;
59 value = i2c_get8(i2cdev, PCA9552_LS0);
60 g_assert_cmphex(value, ==, 0x55);
62 value = i2c_get8(i2cdev, PCA9552_INPUT0);
63 g_assert_cmphex(value, ==, 0x0);
67 value = i2c_get8(i2cdev, PCA9552_LS0);
68 g_assert_cmphex(value, ==, 0x54);
70 value = i2c_get8(i2cdev, PCA9552_INPUT0);
71 g_assert_cmphex(value, ==, 0x01);
73 value = i2c_get8(i2cdev, PCA9552_LS3);
74 g_assert_cmphex(value, ==, 0x54);
76 value = i2c_get8(i2cdev, PCA9552_INPUT1);
77 g_assert_cmphex(value, ==, 0x10);
80 static void pca9552_register_nodes(void)
82 QOSGraphEdgeOptions opts = {
83 .extra_device_opts = "address=0x60"
85 add_qi2c_address(&opts, &(QI2CAddress) { 0x60 });
87 qos_node_create_driver("pca9552", i2c_device_create);
88 qos_node_consumes("pca9552", "i2c-bus", &opts);
90 qos_add_test("tx-rx", "pca9552", send_and_receive, NULL);
91 qos_add_test("rx-autoinc", "pca9552", receive_autoinc, NULL);
93 libqos_init(pca9552_register_nodes);