esp-idf/components/spi_flash/test/test_large_flash_writes.c

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// Copyright 2010-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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.
// Test for spi_flash_write() with large buffers (in RAM or on flash)
#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/param.h>
#include <unity.h>
#include <test_utils.h>
#include <esp_spi_flash.h>
#include <esp_log.h>
#include <rom/spi_flash.h>
#include "../cache_utils.h"
#include "soc/timer_group_struct.h"
#include "soc/timer_group_reg.h"
static const uint8_t large_const_buffer[16400] = {
203, // first byte
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,
21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,
[50 ... 99] = 2,
[1600 ... 2000] = 3,
[8000 ... 9000] = 77,
[15000 ... 16398] = 8,
43 // last byte
};
static void test_write_large_buffer(const uint8_t *source, size_t length);
TEST_CASE("Test spi_flash_write large const buffer", "[spi_flash]")
{
// buffer in flash
test_write_large_buffer(large_const_buffer, sizeof(large_const_buffer));
}
TEST_CASE("Test spi_flash_write large RAM buffer", "[spi_flash]")
{
// buffer in RAM
uint8_t *source_buf = malloc(sizeof(large_const_buffer));
TEST_ASSERT_NOT_NULL(source_buf);
memcpy(source_buf, large_const_buffer, sizeof(large_const_buffer));
test_write_large_buffer(source_buf, sizeof(large_const_buffer));
free(source_buf);
}
static void test_write_large_buffer(const uint8_t *source, size_t length)
{
const esp_partition_t *part = get_test_data_partition();
TEST_ASSERT(part->size > length + 2 + SPI_FLASH_SEC_SIZE);
printf("Writing %d bytes from source %p\n", length, source);
uint8_t *buf = malloc(length);
TEST_ASSERT_NOT_NULL(buf);
ESP_ERROR_CHECK( spi_flash_erase_range(part->address, (length + SPI_FLASH_SEC_SIZE) & ~(SPI_FLASH_SEC_SIZE-1)) );
// note writing to unaligned address
ESP_ERROR_CHECK( spi_flash_write(part->address + 1, source, length) );
ESP_ERROR_CHECK( spi_flash_read(part->address + 1, buf, length) );
TEST_ASSERT_EQUAL_HEX8_ARRAY(source, buf, length);
free(buf);
// check nothing was written at beginning or end
uint8_t ends[8];
ESP_ERROR_CHECK( spi_flash_read(part->address, ends, sizeof(ends)) );
TEST_ASSERT_EQUAL_HEX8(0xFF, ends[0]);
TEST_ASSERT_EQUAL_HEX8(source[0] , ends[1]);
ESP_ERROR_CHECK( spi_flash_read(part->address + length, ends, sizeof(ends)) );
TEST_ASSERT_EQUAL_HEX8(source[length-1], ends[0]);
TEST_ASSERT_EQUAL_HEX8(0xFF, ends[1]);
TEST_ASSERT_EQUAL_HEX8(0xFF, ends[2]);
TEST_ASSERT_EQUAL_HEX8(0xFF, ends[3]);
}