diff options
Diffstat (limited to 'tests/chip_wp.c')
| -rw-r--r-- | tests/chip_wp.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/tests/chip_wp.c b/tests/chip_wp.c index cb9b3ab40..9607a96ed 100644 --- a/tests/chip_wp.c +++ b/tests/chip_wp.c @@ -327,3 +327,68 @@ void partial_chip_erase_with_wp_dummyflasher_test_success(void **state) flashrom_wp_cfg_release(wp_cfg); } + +/* Chip register values & masks are calculated correctly by WP */ +void wp_get_register_values_and_masks(void **state) +{ + (void) state; /* unused */ + + /* + * Test with range: start = 0x004000, lengh = 0xffc000 + * + * WP should use these bit values: + * WPS (S17) = 0 (write protect scheme) + * CMP (S14) = 1 (range complement) + * SRP1 (S8) = 0 + * SRP0 (S7) = 1 (`SRP1 == 1 && SRP0 == 1` is permanent mode) + * SEC (S6) = 1 (base unit is a 4 KiB sector) + * TB (S5) = 1 (bottom up range) + * BP2 (S4) = 0 + * BP1 (S3) = 1 + * BP0 (S2) = 1 (bp: BP2-0 == 0b011 == 3) + * + * Register values: + * SR1 = 0b11101100 = 0xec + * SR2 = 0b01000000 = 0x40 + * SR3 = 0b00000000 = 0x00 + * + * Masks for WP bits in registers: + * SR1: 0b11111100 = 0xfc + * SR2: 0b01000000 = 0x41 + * SR3: 0b00000100 = 0x04 + * + * All WP bits are RW so write masks should be the same as the bit masks. + * + */ + struct flashrom_flashctx flash = { 0 }; + struct flashchip mock_chip = chip_W25Q128_V; + struct flashrom_wp_cfg *wp_cfg; + + uint8_t reg_values[MAX_REGISTERS]; + uint8_t bit_masks[MAX_REGISTERS]; + uint8_t write_masks[MAX_REGISTERS]; + + setup_chip(&flash, NULL, &mock_chip, "bus=spi,emulate=W25Q128FV"); + + assert_int_equal(0, flashrom_wp_cfg_new(&wp_cfg)); + flashrom_wp_set_mode(wp_cfg, FLASHROM_WP_MODE_HARDWARE); + flashrom_wp_set_range(wp_cfg, 0x004000, 0xffc000); + + assert_int_equal(0, wp_cfg_to_reg_values(reg_values, bit_masks, write_masks, &flash, wp_cfg)); + + assert_int_equal(0xec, reg_values[STATUS1]); + assert_int_equal(0x40, reg_values[STATUS2]); + assert_int_equal(0x00, reg_values[STATUS3]); + + assert_int_equal(0xfc, bit_masks[STATUS1]); + assert_int_equal(0x41, bit_masks[STATUS2]); + assert_int_equal(0x04, bit_masks[STATUS3]); + + assert_int_equal(0xfc, write_masks[STATUS1]); + assert_int_equal(0x41, write_masks[STATUS2]); + assert_int_equal(0x04, write_masks[STATUS3]); + + teardown(NULL); + + flashrom_wp_cfg_release(wp_cfg); +} |