2022-07-19 09:30:32 +02:00
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/*
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* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: CC0-1.0
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*/
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#include "unity.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/queue.h"
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#include "freertos/semphr.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_private/usb_phy.h"
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#include "usb/usb_host.h"
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#include "msc_host.h"
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#include "msc_host_vfs.h"
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#include "ffconf.h"
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#include "ff.h"
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#include "test_common.h"
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#include "soc/usb_wrap_struct.h"
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#include "soc/soc_caps.h"
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#if SOC_USB_OTG_SUPPORTED
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static const char *TAG = "APP";
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#define ESP_OK_ASSERT(exp) TEST_ASSERT_EQUAL(ESP_OK, exp)
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static esp_vfs_fat_mount_config_t mount_config = {
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.format_if_mount_failed = false,
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.max_files = 3,
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.allocation_unit_size = 1024,
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};
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static QueueHandle_t app_queue;
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static SemaphoreHandle_t ready_to_deinit_usb;
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static msc_host_device_handle_t device;
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static msc_host_vfs_handle_t vfs_handle;
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static volatile bool waiting_for_sudden_disconnect;
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static usb_phy_handle_t phy_hdl = NULL;
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static void force_conn_state(bool connected, TickType_t delay_ticks)
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{
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TEST_ASSERT(phy_hdl);
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if (delay_ticks > 0) {
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//Delay of 0 ticks causes a yield. So skip if delay_ticks is 0.
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vTaskDelay(delay_ticks);
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}
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ESP_ERROR_CHECK(usb_phy_action(phy_hdl, (connected) ? USB_PHY_ACTION_HOST_ALLOW_CONN : USB_PHY_ACTION_HOST_FORCE_DISCONN));
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}
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static void msc_event_cb(const msc_host_event_t *event, void *arg)
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{
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if (waiting_for_sudden_disconnect) {
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waiting_for_sudden_disconnect = false;
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TEST_ASSERT_EQUAL(MSC_DEVICE_DISCONNECTED, event->event);
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}
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if (event->event == MSC_DEVICE_CONNECTED) {
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printf("MSC_DEVICE_CONNECTED\n");
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} else {
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printf("MSC_DEVICE_DISCONNECTED\n");
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}
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xQueueSend(app_queue, event, 10);
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}
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static const char *TEST_STRING = "Hello World!";
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static const char *FILE_NAME = "/usb/ESP32.txt";
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static void write_read_file(const char *file_path)
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{
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char line[64];
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ESP_LOGI(TAG, "Writing file");
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FILE *f = fopen(file_path, "w");
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TEST_ASSERT(f);
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fprintf(f, TEST_STRING);
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fclose(f);
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ESP_LOGI(TAG, "Reading file");
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TEST_ASSERT(fopen(file_path, "r"));
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fgets(line, sizeof(line), f);
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fclose(f);
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// strip newline
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char *pos = strchr(line, '\n');
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if (pos) {
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*pos = '\0';
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}
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TEST_ASSERT_EQUAL_STRING(line, TEST_STRING);
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ESP_LOGI(TAG, "Done");
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}
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static bool file_exists(const char *file_path)
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{
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return ( access(file_path, F_OK) == 0 );
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}
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// Handles common USB host library events
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static void handle_usb_events(void *args)
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{
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uint32_t end_flags = 0;
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while (1) {
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uint32_t event_flags;
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usb_host_lib_handle_events(portMAX_DELAY, &event_flags);
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// Release devices once all clients has deregistered
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if (event_flags & USB_HOST_LIB_EVENT_FLAGS_NO_CLIENTS) {
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printf("USB_HOST_LIB_EVENT_FLAGS_NO_CLIENTS\n");
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usb_host_device_free_all();
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end_flags |= 1;
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}
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// Give ready_to_deinit_usb semaphore to indicate that USB Host library
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// can be deinitialized, and terminate this task.
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if (event_flags & USB_HOST_LIB_EVENT_FLAGS_ALL_FREE) {
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printf("USB_HOST_LIB_EVENT_FLAGS_ALL_FREE\n");
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end_flags |= 2;
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}
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if (end_flags == 3) {
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xSemaphoreGive(ready_to_deinit_usb);
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break;
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}
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}
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vTaskDelete(NULL);
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}
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static void check_file_content(const char *file_path, const char *expected)
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{
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ESP_LOGI(TAG, "Reading %s:", file_path);
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FILE *file = fopen(file_path, "r");
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TEST_ASSERT(file)
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char content[200];
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fread(content, 1, sizeof(content), file);
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TEST_ASSERT_EQUAL_STRING(content, expected);
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fclose(file);
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}
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static void check_sudden_disconnect(void)
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{
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uint8_t data[512];
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const size_t DATA_SIZE = sizeof(data);
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ESP_LOGI(TAG, "Creating test.tx");
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FILE *file = fopen("/usb/test.txt", "w");
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TEST_ASSERT(file);
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ESP_LOGI(TAG, "Write data");
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TEST_ASSERT_EQUAL(DATA_SIZE, fwrite(data, 1, DATA_SIZE, file));
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TEST_ASSERT_EQUAL(DATA_SIZE, fwrite(data, 1, DATA_SIZE, file));
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TEST_ASSERT_EQUAL(0, fflush(file));
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ESP_LOGI(TAG, "Trigger a disconnect");
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//Trigger a disconnect
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waiting_for_sudden_disconnect = true;
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force_conn_state(false, 0);
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// Make sure flag was leared in callback
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vTaskDelay( pdMS_TO_TICKS(100) );
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TEST_ASSERT_FALSE(waiting_for_sudden_disconnect);
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ESP_LOGI(TAG, "Write data after disconnect");
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TEST_ASSERT_NOT_EQUAL( DATA_SIZE, fwrite(data, 1, DATA_SIZE, file));
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fclose(file);
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}
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static void msc_setup(void)
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{
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BaseType_t task_created;
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ready_to_deinit_usb = xSemaphoreCreateBinary();
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TEST_ASSERT( app_queue = xQueueCreate(5, sizeof(msc_host_event_t)) );
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//Initialize the internal USB PHY to connect to the USB OTG peripheral. We manually install the USB PHY for testing
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usb_phy_config_t phy_config = {
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.controller = USB_PHY_CTRL_OTG,
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.target = USB_PHY_TARGET_INT,
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.otg_mode = USB_OTG_MODE_HOST,
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.otg_speed = USB_PHY_SPEED_UNDEFINED, //In Host mode, the speed is determined by the connected device
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};
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ESP_OK_ASSERT(usb_new_phy(&phy_config, &phy_hdl));
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const usb_host_config_t host_config = {
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.skip_phy_setup = true,
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.intr_flags = ESP_INTR_FLAG_LEVEL1,
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};
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ESP_OK_ASSERT( usb_host_install(&host_config) );
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task_created = xTaskCreatePinnedToCore(handle_usb_events, "usb_events", 2048, NULL, 2, NULL, 0);
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TEST_ASSERT(task_created);
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const msc_host_driver_config_t msc_config = {
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.create_backround_task = true,
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.callback = msc_event_cb,
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.stack_size = 4096,
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.task_priority = 5,
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};
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ESP_OK_ASSERT( msc_host_install(&msc_config) );
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ESP_LOGI(TAG, "Waiting for USB stick to be connected");
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msc_host_event_t app_event;
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xQueueReceive(app_queue, &app_event, portMAX_DELAY);
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TEST_ASSERT_EQUAL(MSC_DEVICE_CONNECTED, app_event.event);
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uint8_t device_addr = app_event.device.address;
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ESP_OK_ASSERT( msc_host_install_device(device_addr, &device) );
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ESP_OK_ASSERT( msc_host_vfs_register(device, "/usb", &mount_config, &vfs_handle) );
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}
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static void msc_teardown(void)
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{
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2022-11-07 18:06:40 +01:00
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vTaskDelay(10); // Wait to finish any ongoing USB operations
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2022-07-19 09:30:32 +02:00
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ESP_OK_ASSERT( msc_host_vfs_unregister(vfs_handle) );
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ESP_OK_ASSERT( msc_host_uninstall_device(device) );
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ESP_OK_ASSERT( msc_host_uninstall() );
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xSemaphoreTake(ready_to_deinit_usb, portMAX_DELAY);
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vSemaphoreDelete(ready_to_deinit_usb);
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ESP_OK_ASSERT( usb_host_uninstall() );
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//Tear down USB PHY
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ESP_OK_ASSERT(usb_del_phy(phy_hdl));
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phy_hdl = NULL;
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vQueueDelete(app_queue);
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2022-11-07 18:06:40 +01:00
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vTaskDelay(10); // Wait for FreeRTOS to clean up deleted tasks
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2022-07-19 09:30:32 +02:00
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}
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static void write_read_sectors(void)
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{
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uint8_t write_data[DISK_BLOCK_SIZE];
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uint8_t read_data[DISK_BLOCK_SIZE];
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memset(write_data, 0x55, DISK_BLOCK_SIZE);
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memset(read_data, 0, DISK_BLOCK_SIZE);
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msc_host_write_sector(device, 10, write_data, DISK_BLOCK_SIZE);
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msc_host_read_sector(device, 10, read_data, DISK_BLOCK_SIZE);
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TEST_ASSERT_EQUAL_MEMORY(write_data, read_data, DISK_BLOCK_SIZE);
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}
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static void erase_storage(void)
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{
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uint8_t data[DISK_BLOCK_SIZE];
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memset(data, 0xFF, DISK_BLOCK_SIZE);
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for (int block = 0; block < DISK_BLOCK_NUM; block++) {
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msc_host_write_sector(device, block, data, DISK_BLOCK_SIZE);
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}
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}
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TEST_CASE("write_and_read_file", "[usb_msc]")
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{
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msc_setup();
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write_read_file(FILE_NAME);
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msc_teardown();
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}
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TEST_CASE("sudden_disconnect", "[usb_msc]")
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{
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msc_setup();
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check_sudden_disconnect();
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msc_teardown();
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}
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TEST_CASE("sectors_can_be_written_and_read", "[usb_msc]")
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{
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msc_setup();
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write_read_sectors();
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msc_teardown();
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}
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TEST_CASE("check_README_content", "[usb_msc]")
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{
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msc_setup();
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check_file_content("/usb/README.TXT", README_CONTENTS);
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msc_teardown();
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}
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/**
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* @brief USB MSC format testcase
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* @attention This testcase deletes all content on the USB MSC device.
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* The device must be reset in order to contain the FILE_NAME again.
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*/
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TEST_CASE("can_be_formated", "[usb_msc]")
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{
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printf("Create file\n");
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msc_setup();
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write_read_file(FILE_NAME);
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msc_teardown();
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printf("File exists after mounting again\n");
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msc_setup();
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TEST_ASSERT(file_exists(FILE_NAME));
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printf("Erase storage device\n");
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erase_storage();
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msc_teardown();
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printf("Check file does not exist after formatting\n");
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mount_config.format_if_mount_failed = true;
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msc_setup();
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TEST_ASSERT_FALSE(file_exists(FILE_NAME));
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msc_teardown();
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mount_config.format_if_mount_failed = false;
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}
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TEST_CASE("mock_device_app", "[usb_msc_device][ignore]")
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{
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device_app();
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}
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#endif
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