diff options
| -rw-r--r-- | hw/i2c/pmbus_device.c | 18 | ||||
| -rw-r--r-- | tests/qtest/max34451-test.c | 24 |
2 files changed, 33 insertions, 9 deletions
diff --git a/hw/i2c/pmbus_device.c b/hw/i2c/pmbus_device.c index 481e158380..1b978e588f 100644 --- a/hw/i2c/pmbus_device.c +++ b/hw/i2c/pmbus_device.c @@ -1255,6 +1255,15 @@ static int pmbus_write_data(SMBusDevice *smd, uint8_t *buf, uint8_t len) if (pmdev->code == PMBUS_PAGE) { pmdev->page = pmbus_receive8(pmdev); + + if (pmdev->page > pmdev->num_pages - 1 && pmdev->page != PB_ALL_PAGES) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: page %u is out of range\n", + __func__, pmdev->page); + pmdev->page = 0; /* undefined behaviour - reset to page 0 */ + pmbus_cml_error(pmdev); + return PMBUS_ERR_BYTE; + } return 0; } @@ -1268,15 +1277,6 @@ static int pmbus_write_data(SMBusDevice *smd, uint8_t *buf, uint8_t len) return 0; } - if (pmdev->page > pmdev->num_pages - 1) { - qemu_log_mask(LOG_GUEST_ERROR, - "%s: page %u is out of range\n", - __func__, pmdev->page); - pmdev->page = 0; /* undefined behaviour - reset to page 0 */ - pmbus_cml_error(pmdev); - return PMBUS_ERR_BYTE; - } - index = pmdev->page; switch (pmdev->code) { diff --git a/tests/qtest/max34451-test.c b/tests/qtest/max34451-test.c index 0c98d0764c..dbf6ddc829 100644 --- a/tests/qtest/max34451-test.c +++ b/tests/qtest/max34451-test.c @@ -18,6 +18,7 @@ #define TEST_ID "max34451-test" #define TEST_ADDR (0x4e) +#define MAX34451_MFR_MODE 0xD1 #define MAX34451_MFR_VOUT_PEAK 0xD4 #define MAX34451_MFR_IOUT_PEAK 0xD5 #define MAX34451_MFR_TEMPERATURE_PEAK 0xD6 @@ -315,6 +316,28 @@ static void test_ot_faults(void *obj, void *data, QGuestAllocator *alloc) } } +#define RAND_ON_OFF_CONFIG 0x12 +#define RAND_MFR_MODE 0x3456 + +/* test writes to all pages */ +static void test_all_pages(void *obj, void *data, QGuestAllocator *alloc) +{ + uint16_t i2c_value; + QI2CDevice *i2cdev = (QI2CDevice *)obj; + + i2c_set8(i2cdev, PMBUS_PAGE, PB_ALL_PAGES); + i2c_set8(i2cdev, PMBUS_ON_OFF_CONFIG, RAND_ON_OFF_CONFIG); + max34451_i2c_set16(i2cdev, MAX34451_MFR_MODE, RAND_MFR_MODE); + + for (int i = 0; i < MAX34451_NUM_TEMP_DEVICES + MAX34451_NUM_PWR_DEVICES; + i++) { + i2c_value = i2c_get8(i2cdev, PMBUS_ON_OFF_CONFIG); + g_assert_cmphex(i2c_value, ==, RAND_ON_OFF_CONFIG); + i2c_value = max34451_i2c_get16(i2cdev, MAX34451_MFR_MODE); + g_assert_cmphex(i2c_value, ==, RAND_MFR_MODE); + } +} + static void max34451_register_nodes(void) { QOSGraphEdgeOptions opts = { @@ -332,5 +355,6 @@ static void max34451_register_nodes(void) qos_add_test("test_ro_regs", "max34451", test_ro_regs, NULL); qos_add_test("test_ov_faults", "max34451", test_ov_faults, NULL); qos_add_test("test_ot_faults", "max34451", test_ot_faults, NULL); + qos_add_test("test_all_pages", "max34451", test_all_pages, NULL); } libqos_init(max34451_register_nodes); |