From 951674ac7e3db23eb3b2b87c27387364a9e38ca2 Mon Sep 17 00:00:00 2001 From: Robert Beckett Date: Mon, 28 Oct 2019 17:44:59 +0000 Subject: dm: i2c: EEPROM simulator add tests for addr offset mask Add support for setting the chip address offset mask to EEPROM sumulator and add tests to test it. Signed-off-by: Robert Beckett Reviewed-by: Heiko Schocher --- test/dm/i2c.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) (limited to 'test') diff --git a/test/dm/i2c.c b/test/dm/i2c.c index bf5597b7a6..cadbb43b9e 100644 --- a/test/dm/i2c.c +++ b/test/dm/i2c.c @@ -241,3 +241,68 @@ static int dm_test_i2c_offset(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_i2c_offset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +static int dm_test_i2c_addr_offset(struct unit_test_state *uts) +{ + struct udevice *eeprom; + struct udevice *dev; + u8 buf[5]; + + ut_assertok(i2c_get_chip_for_busnum(busnum, chip, 1, &dev)); + + /* Do a transfer so we can find the emulator */ + ut_assertok(dm_i2c_read(dev, 0, buf, 5)); + ut_assertok(uclass_first_device(UCLASS_I2C_EMUL, &eeprom)); + + /* Offset length 0 */ + sandbox_i2c_eeprom_set_offset_len(eeprom, 0); + sandbox_i2c_eeprom_set_chip_addr_offset_mask(eeprom, 0x3); + ut_assertok(i2c_set_chip_offset_len(dev, 0)); + ut_assertok(i2c_set_chip_addr_offset_mask(dev, 0x3)); + ut_assertok(dm_i2c_write(dev, 0x3, (uint8_t *)"AB", 2)); + ut_assertok(dm_i2c_read(dev, 0x3, buf, 5)); + ut_asserteq_mem("AB\0\0\0\0", buf, sizeof(buf)); + ut_asserteq(0x3, sanbox_i2c_eeprom_get_prev_offset(eeprom)); + ut_asserteq(chip | 0x3, sanbox_i2c_eeprom_get_prev_addr(eeprom)); + + /* Offset length 1 */ + sandbox_i2c_eeprom_set_offset_len(eeprom, 1); + sandbox_i2c_eeprom_set_chip_addr_offset_mask(eeprom, 0x3); + ut_assertok(i2c_set_chip_offset_len(dev, 1)); + ut_assertok(i2c_set_chip_addr_offset_mask(dev, 0x3)); + ut_assertok(dm_i2c_write(dev, 0x310, (uint8_t *)"AB", 2)); + ut_assertok(dm_i2c_read(dev, 0x310, buf, 5)); + ut_asserteq_mem("AB\0\0\0\0", buf, sizeof(buf)); + ut_asserteq(0x310, sanbox_i2c_eeprom_get_prev_offset(eeprom)); + ut_asserteq(chip | 0x3, sanbox_i2c_eeprom_get_prev_addr(eeprom)); + + /* Offset length 2 */ + sandbox_i2c_eeprom_set_offset_len(eeprom, 2); + sandbox_i2c_eeprom_set_chip_addr_offset_mask(eeprom, 0x3); + ut_assertok(i2c_set_chip_offset_len(dev, 2)); + ut_assertok(i2c_set_chip_addr_offset_mask(dev, 0x3)); + ut_assertok(dm_i2c_write(dev, 0x32020, (uint8_t *)"AB", 2)); + ut_assertok(dm_i2c_read(dev, 0x32020, buf, 5)); + ut_asserteq_mem("AB\0\0\0\0", buf, sizeof(buf)); + ut_asserteq(0x32020, sanbox_i2c_eeprom_get_prev_offset(eeprom)); + ut_asserteq(chip | 0x3, sanbox_i2c_eeprom_get_prev_addr(eeprom)); + + /* Offset length 3 */ + sandbox_i2c_eeprom_set_offset_len(eeprom, 3); + sandbox_i2c_eeprom_set_chip_addr_offset_mask(eeprom, 0x3); + ut_assertok(i2c_set_chip_offset_len(dev, 3)); + ut_assertok(i2c_set_chip_addr_offset_mask(dev, 0x3)); + ut_assertok(dm_i2c_write(dev, 0x3303030, (uint8_t *)"AB", 2)); + ut_assertok(dm_i2c_read(dev, 0x3303030, buf, 5)); + ut_asserteq_mem("AB\0\0\0\0", buf, sizeof(buf)); + ut_asserteq(0x3303030, sanbox_i2c_eeprom_get_prev_offset(eeprom)); + ut_asserteq(chip | 0x3, sanbox_i2c_eeprom_get_prev_addr(eeprom)); + + /* Restore defaults */ + sandbox_i2c_eeprom_set_offset_len(eeprom, 1); + sandbox_i2c_eeprom_set_chip_addr_offset_mask(eeprom, 0); + + return 0; +} + +DM_TEST(dm_test_i2c_addr_offset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); -- cgit v1.2.3