From 7b72e5479ee6d11f76c49f7463ba0e7f4e5165c5 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Tue, 25 Jul 2023 17:42:00 +1000
Subject: fork the esp-idf fatfs for f_forward and exfat support

---
 lib/fatfs/test_fatfs_host/test_fatfs.cpp | 94 ++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 lib/fatfs/test_fatfs_host/test_fatfs.cpp

(limited to 'lib/fatfs/test_fatfs_host/test_fatfs.cpp')

diff --git a/lib/fatfs/test_fatfs_host/test_fatfs.cpp b/lib/fatfs/test_fatfs_host/test_fatfs.cpp
new file mode 100644
index 00000000..2dae2471
--- /dev/null
+++ b/lib/fatfs/test_fatfs_host/test_fatfs.cpp
@@ -0,0 +1,94 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "ff.h"
+#include "esp_partition.h"
+#include "wear_levelling.h"
+#include "diskio_impl.h"
+#include "diskio_wl.h"
+
+#include "catch.hpp"
+
+extern "C" void _spi_flash_init(const char* chip_size, size_t block_size, size_t sector_size, size_t page_size, const char* partition_bin);
+
+TEST_CASE("create volume, open file, write and read back data", "[fatfs]")
+{
+    _spi_flash_init(CONFIG_ESPTOOLPY_FLASHSIZE, CONFIG_WL_SECTOR_SIZE * 16, CONFIG_WL_SECTOR_SIZE, CONFIG_WL_SECTOR_SIZE, "partition_table.bin");
+
+    FRESULT fr_result;
+    BYTE pdrv;
+    FATFS fs;
+    FIL file;
+    UINT bw;
+
+    esp_err_t esp_result;
+
+    const esp_partition_t *partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_FAT, "storage");
+
+    // Mount wear-levelled partition
+    wl_handle_t wl_handle;
+    esp_result = wl_mount(partition, &wl_handle);
+    REQUIRE(esp_result == ESP_OK);
+
+    // Get a physical drive
+    esp_result = ff_diskio_get_drive(&pdrv);
+    REQUIRE(esp_result == ESP_OK);
+
+    // Register physical drive as wear-levelled partition
+    esp_result = ff_diskio_register_wl_partition(pdrv, wl_handle);
+
+    // Create FAT volume on the entire disk
+    LBA_t part_list[] = {100, 0, 0, 0};
+    BYTE work_area[FF_MAX_SS];
+
+    fr_result = f_fdisk(pdrv, part_list, work_area);
+    REQUIRE(fr_result == FR_OK);
+    const MKFS_PARM opt = {(BYTE)FM_ANY, 0, 0, 0, 0};
+    fr_result = f_mkfs("", &opt, work_area, sizeof(work_area)); // Use default volume
+
+    // Mount the volume
+    fr_result = f_mount(&fs, "", 0);
+    REQUIRE(fr_result == FR_OK);
+
+    // Open, write and read data
+    fr_result = f_open(&file, "test.txt", FA_OPEN_ALWAYS | FA_READ | FA_WRITE);
+    REQUIRE(fr_result == FR_OK);
+
+    // Generate data
+    uint32_t data_size = 100000;
+
+    char *data = (char*) malloc(data_size);
+    char *read = (char*) malloc(data_size);
+
+    for(uint32_t i = 0; i < data_size; i += sizeof(i))
+    {
+        *((uint32_t*)(data + i)) = i;
+    }
+
+    // Write generated data
+    fr_result = f_write(&file, data, data_size, &bw);
+    REQUIRE(fr_result == FR_OK);
+    REQUIRE(bw == data_size);
+
+    // Move to beginning of file
+    fr_result = f_lseek(&file, 0);
+    REQUIRE(fr_result == FR_OK);
+
+    // Read written data
+    fr_result = f_read(&file, read, data_size, &bw);
+    REQUIRE(fr_result == FR_OK);
+    REQUIRE(bw == data_size);
+
+    REQUIRE(memcmp(data, read, data_size) == 0);
+
+    // Close file
+    fr_result = f_close(&file);
+    REQUIRE(fr_result == FR_OK);
+
+    // Unmount default volume
+    fr_result = f_mount(0, "", 0);
+    REQUIRE(fr_result == FR_OK);
+
+    free(read);
+    free(data);
+}
-- 
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