/* * Copyright (c) 2020 Arm Limited * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "mbed.h" #include "greentea-client/test_env.h" #include "unity.h" #include "utest.h" #include "I2CEEBlockDevice.h" #include <stdlib.h> using namespace utest::v1; #define TEST_PINS D14, D15 #define TEST_ADDR 0xa0 #define TEST_SIZE 32*1024 #define TEST_BLOCK_SIZE 64 #define TEST_FREQ 400000 #define TEST_BLOCK_COUNT 10 #define TEST_ERROR_MASK 16 const struct { const char *name; bd_size_t (BlockDevice::*method)() const; } ATTRS[] = { {"read size", &BlockDevice::get_read_size}, {"program size", &BlockDevice::get_program_size}, {"erase size", &BlockDevice::get_erase_size}, {"total size", &BlockDevice::size}, }; void test_read_write() { I2CEEBlockDevice bd(TEST_PINS, TEST_ADDR, TEST_SIZE, TEST_BLOCK_SIZE, TEST_FREQ); int err = bd.init(); TEST_ASSERT_EQUAL(0, err); for (unsigned a = 0; a < sizeof(ATTRS) / sizeof(ATTRS[0]); a++) { static const char *prefixes[] = {"", "k", "M", "G"}; for (int i = 3; i >= 0; i--) { bd_size_t size = (bd.*ATTRS[a].method)(); if (size >= (1ULL << 10 * i)) { printf("%s: %llu%sbytes (%llubytes)\n", ATTRS[a].name, size >> 10 * i, prefixes[i], size); break; } } } bd_size_t block_size = bd.get_erase_size(); uint8_t *write_block = new uint8_t[block_size]; uint8_t *read_block = new uint8_t[block_size]; uint8_t *error_mask = new uint8_t[TEST_ERROR_MASK]; unsigned addrwidth = ceil(log(float(bd.size() - 1)) / log(float(16))) + 1; for (int b = 0; b < TEST_BLOCK_COUNT; b++) { // Find a random block bd_addr_t block = (rand() * block_size) % bd.size(); // Use next random number as temporary seed to keep // the address progressing in the pseudorandom sequence unsigned seed = rand(); // Fill with random sequence srand(seed); for (bd_size_t i = 0; i < block_size; i++) { write_block[i] = 0xff & rand(); } // Write, sync, and read the block printf("test %0*llx:%llu...\n", addrwidth, block, block_size); err = bd.erase(block, block_size); TEST_ASSERT_EQUAL(0, err); err = bd.program(write_block, block, block_size); TEST_ASSERT_EQUAL(0, err); printf("write %0*llx:%llu ", addrwidth, block, block_size); for (int i = 0; i < block_size && i < 16; i++) { printf("%02x", write_block[i]); } if (block_size > 16) { printf("...\n"); } printf("\n"); err = bd.read(read_block, block, block_size); TEST_ASSERT_EQUAL(0, err); printf("read %0*llx:%llu ", addrwidth, block, block_size); for (int i = 0; i < block_size && i < 16; i++) { printf("%02x", read_block[i]); } if (block_size > 16) { printf("..."); } printf("\n"); // Find error mask for debugging memset(error_mask, 0, TEST_ERROR_MASK); bd_size_t error_scale = block_size / (TEST_ERROR_MASK * 8); srand(seed); for (bd_size_t i = 0; i < TEST_ERROR_MASK * 8; i++) { for (bd_size_t j = 0; j < error_scale; j++) { if ((0xff & rand()) != read_block[i * error_scale + j]) { error_mask[i / 8] |= 1 << (i % 8); } } } printf("error %0*llx:%llu ", addrwidth, block, block_size); for (int i = 0; i < TEST_ERROR_MASK; i++) { printf("%02x", error_mask[i]); } printf("\n"); // Check that the data was unmodified srand(seed); for (bd_size_t i = 0; i < block_size; i++) { TEST_ASSERT_EQUAL(0xff & rand(), read_block[i]); } } err = bd.deinit(); TEST_ASSERT_EQUAL(0, err); } // Test setup utest::v1::status_t test_setup(const size_t number_of_cases) { GREENTEA_SETUP(30, "default_auto"); return verbose_test_setup_handler(number_of_cases); } Case cases[] = { Case("Testing read write random blocks", test_read_write), }; Specification specification(test_setup, cases); int main() { return !Harness::run(specification); }