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1 | /* |
2 | * QTest testcase for the PCA9552 LED blinker | |
3 | * | |
4 | * Copyright (c) 2017-2018, IBM Corporation. | |
5 | * | |
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. | |
8 | */ | |
9 | ||
10 | #include "qemu/osdep.h" | |
11 | ||
12 | #include "libqtest.h" | |
13 | #include "libqos/i2c.h" | |
14 | #include "hw/misc/pca9552_regs.h" | |
15 | ||
16 | #define PCA9552_TEST_ID "pca9552-test" | |
17 | #define PCA9552_TEST_ADDR 0x60 | |
18 | ||
19 | static I2CAdapter *i2c; | |
20 | ||
5141d415 CLG |
21 | static void receive_autoinc(void) |
22 | { | |
23 | uint8_t resp; | |
24 | uint8_t reg = PCA9552_LS0 | PCA9552_AUTOINC; | |
25 | ||
26 | i2c_send(i2c, PCA9552_TEST_ADDR, ®, 1); | |
27 | ||
28 | /* PCA9552_LS0 */ | |
29 | i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); | |
30 | g_assert_cmphex(resp, ==, 0x54); | |
31 | ||
32 | /* PCA9552_LS1 */ | |
33 | i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); | |
34 | g_assert_cmphex(resp, ==, 0x55); | |
35 | ||
36 | /* PCA9552_LS2 */ | |
37 | i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); | |
38 | g_assert_cmphex(resp, ==, 0x55); | |
39 | ||
40 | /* PCA9552_LS3 */ | |
41 | i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); | |
42 | g_assert_cmphex(resp, ==, 0x54); | |
43 | } | |
44 | ||
45 | static void send_and_receive(void) | |
46 | { | |
47 | uint8_t value; | |
48 | ||
e8ecb706 | 49 | value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0); |
5141d415 CLG |
50 | g_assert_cmphex(value, ==, 0x55); |
51 | ||
e8ecb706 | 52 | value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT0); |
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53 | g_assert_cmphex(value, ==, 0x0); |
54 | ||
55 | /* Switch on LED 0 */ | |
e8ecb706 PB |
56 | i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0, 0x54); |
57 | value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0); | |
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58 | g_assert_cmphex(value, ==, 0x54); |
59 | ||
e8ecb706 | 60 | value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT0); |
5141d415 CLG |
61 | g_assert_cmphex(value, ==, 0x01); |
62 | ||
63 | /* Switch on LED 12 */ | |
e8ecb706 PB |
64 | i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS3, 0x54); |
65 | value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS3); | |
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66 | g_assert_cmphex(value, ==, 0x54); |
67 | ||
e8ecb706 | 68 | value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT1); |
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69 | g_assert_cmphex(value, ==, 0x10); |
70 | } | |
71 | ||
72 | int main(int argc, char **argv) | |
73 | { | |
74 | QTestState *s = NULL; | |
75 | int ret; | |
76 | ||
77 | g_test_init(&argc, &argv, NULL); | |
78 | ||
79 | s = qtest_start("-machine n800 " | |
80 | "-device pca9552,bus=i2c-bus.0,id=" PCA9552_TEST_ID | |
81 | ",address=0x60"); | |
82 | i2c = omap_i2c_create(s, OMAP2_I2C_1_BASE); | |
83 | ||
84 | qtest_add_func("/pca9552/tx-rx", send_and_receive); | |
85 | qtest_add_func("/pca9552/rx-autoinc", receive_autoinc); | |
86 | ||
87 | ret = g_test_run(); | |
88 | ||
89 | if (s) { | |
90 | qtest_quit(s); | |
91 | } | |
92 | g_free(i2c); | |
93 | ||
94 | return ret; | |
95 | } |