2 * Analog Devices ADM1266 Cascadable Super Sequencer with Margin Control and
3 * Fault Recording with PMBus
5 * Copyright 2022 Google LLC
7 * SPDX-License-Identifier: GPL-2.0-or-later
10 #include "qemu/osdep.h"
12 #include "hw/i2c/pmbus_device.h"
13 #include "libqtest-single.h"
14 #include "libqos/qgraph.h"
15 #include "libqos/i2c.h"
16 #include "qapi/qmp/qdict.h"
17 #include "qapi/qmp/qnum.h"
18 #include "qemu/bitops.h"
20 #define TEST_ID "adm1266-test"
21 #define TEST_ADDR (0x12)
23 #define ADM1266_BLACKBOX_CONFIG 0xD3
24 #define ADM1266_PDIO_CONFIG 0xD4
25 #define ADM1266_READ_STATE 0xD9
26 #define ADM1266_READ_BLACKBOX 0xDE
27 #define ADM1266_SET_RTC 0xDF
28 #define ADM1266_GPIO_SYNC_CONFIGURATION 0xE1
29 #define ADM1266_BLACKBOX_INFORMATION 0xE6
30 #define ADM1266_PDIO_STATUS 0xE9
31 #define ADM1266_GPIO_STATUS 0xEA
34 #define ADM1266_OPERATION_DEFAULT 0x80
35 #define ADM1266_CAPABILITY_DEFAULT 0xA0
36 #define ADM1266_CAPABILITY_NO_PEC 0x20
37 #define ADM1266_PMBUS_REVISION_DEFAULT 0x22
38 #define ADM1266_MFR_ID_DEFAULT "ADI"
39 #define ADM1266_MFR_ID_DEFAULT_LEN 32
40 #define ADM1266_MFR_MODEL_DEFAULT "ADM1266-A1"
41 #define ADM1266_MFR_MODEL_DEFAULT_LEN 32
42 #define ADM1266_MFR_REVISION_DEFAULT "25"
43 #define ADM1266_MFR_REVISION_DEFAULT_LEN 8
44 #define TEST_STRING_A "a sample"
45 #define TEST_STRING_B "b sample"
46 #define TEST_STRING_C "rev c"
48 static void compare_string(QI2CDevice
*i2cdev
, uint8_t reg
,
51 uint8_t len
= i2c_get8(i2cdev
, reg
);
52 char i2c_str
[SMBUS_DATA_MAX_LEN
] = {0};
54 i2c_read_block(i2cdev
, reg
, (uint8_t *)i2c_str
, len
);
55 g_assert_cmpstr(i2c_str
, ==, test_str
);
58 static void write_and_compare_string(QI2CDevice
*i2cdev
, uint8_t reg
,
59 const char *test_str
, uint8_t len
)
61 char buf
[SMBUS_DATA_MAX_LEN
] = {0};
63 strncpy(buf
+ 1, test_str
, len
);
64 i2c_write_block(i2cdev
, reg
, (uint8_t *)buf
, len
+ 1);
65 compare_string(i2cdev
, reg
, test_str
);
68 static void test_defaults(void *obj
, void *data
, QGuestAllocator
*alloc
)
71 QI2CDevice
*i2cdev
= (QI2CDevice
*)obj
;
73 i2c_value
= i2c_get8(i2cdev
, PMBUS_OPERATION
);
74 g_assert_cmphex(i2c_value
, ==, ADM1266_OPERATION_DEFAULT
);
76 i2c_value
= i2c_get8(i2cdev
, PMBUS_REVISION
);
77 g_assert_cmphex(i2c_value
, ==, ADM1266_PMBUS_REVISION_DEFAULT
);
79 compare_string(i2cdev
, PMBUS_MFR_ID
, ADM1266_MFR_ID_DEFAULT
);
80 compare_string(i2cdev
, PMBUS_MFR_MODEL
, ADM1266_MFR_MODEL_DEFAULT
);
81 compare_string(i2cdev
, PMBUS_MFR_REVISION
, ADM1266_MFR_REVISION_DEFAULT
);
84 /* test r/w registers */
85 static void test_rw_regs(void *obj
, void *data
, QGuestAllocator
*alloc
)
87 QI2CDevice
*i2cdev
= (QI2CDevice
*)obj
;
90 i2c_set8(i2cdev
, PMBUS_MFR_ID
, 0);
91 compare_string(i2cdev
, PMBUS_MFR_ID
, "");
93 i2c_set8(i2cdev
, PMBUS_MFR_MODEL
, 0);
94 compare_string(i2cdev
, PMBUS_MFR_MODEL
, "");
96 i2c_set8(i2cdev
, PMBUS_MFR_REVISION
, 0);
97 compare_string(i2cdev
, PMBUS_MFR_REVISION
, "");
100 write_and_compare_string(i2cdev
, PMBUS_MFR_ID
, TEST_STRING_A
,
101 sizeof(TEST_STRING_A
));
102 write_and_compare_string(i2cdev
, PMBUS_MFR_ID
, TEST_STRING_B
,
103 sizeof(TEST_STRING_B
));
104 write_and_compare_string(i2cdev
, PMBUS_MFR_ID
, TEST_STRING_C
,
105 sizeof(TEST_STRING_C
));
108 static void adm1266_register_nodes(void)
110 QOSGraphEdgeOptions opts
= {
111 .extra_device_opts
= "id=" TEST_ID
",address=0x12"
113 add_qi2c_address(&opts
, &(QI2CAddress
) { TEST_ADDR
});
115 qos_node_create_driver("adm1266", i2c_device_create
);
116 qos_node_consumes("adm1266", "i2c-bus", &opts
);
118 qos_add_test("test_defaults", "adm1266", test_defaults
, NULL
);
119 qos_add_test("test_rw_regs", "adm1266", test_rw_regs
, NULL
);
122 libqos_init(adm1266_register_nodes
);