/* * SPDX-FileCopyrightText: 2019 Ha Thach (tinyusb.org) * * SPDX-License-Identifier: MIT * * SPDX-FileContributor: 2019-2021 Espressif Systems (Shanghai) CO LTD * */ /* * The MIT License (MIT) * * Copyright (c) 2019 Ha Thach (tinyusb.org) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */ #include #include "esp_log.h" #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "tinyusb.h" #include "test_common.h" #include "soc/soc_caps.h" #include "esp_idf_version.h" #if SOC_USB_OTG_SUPPORTED #define MASS_STORAGE_CLASS 0x08 #define SCSI_COMMAND_SET 0x06 #define BULK_ONLY_TRANSFER 0x50 static const char *TAG = "msc_example"; #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0) /**** Kconfig driven Descriptor ****/ static const tusb_desc_device_t device_descriptor = { .bLength = sizeof(device_descriptor), .bDescriptorType = TUSB_DESC_DEVICE, .bcdUSB = 0x0200, .bDeviceClass = MASS_STORAGE_CLASS, .bDeviceSubClass = SCSI_COMMAND_SET, .bDeviceProtocol = BULK_ONLY_TRANSFER, .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, .idVendor = USB_ESPRESSIF_VID, .idProduct = 0x1234, .bcdDevice = 0x0100, .iManufacturer = 0x01, .iProduct = 0x02, .iSerialNumber = 0x03, .bNumConfigurations = 0x01 }; const uint16_t msc_desc_config_len = TUD_CONFIG_DESC_LEN + CFG_TUD_MSC * TUD_MSC_DESC_LEN; static const uint8_t msc_desc_configuration[] = { TUD_CONFIG_DESCRIPTOR(1, 4, 0, msc_desc_config_len, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100), TUD_MSC_DESCRIPTOR(0, 5, 1, 0x80 | 1, 64), }; #endif void device_app(void) { ESP_LOGI(TAG, "USB initialization"); tinyusb_config_t tusb_cfg = { .external_phy = false, #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0) .device_descriptor = &device_descriptor, .configuration_descriptor = msc_desc_configuration #endif }; ESP_ERROR_CHECK(tinyusb_driver_install(&tusb_cfg)); ESP_LOGI(TAG, "USB initialization DONE"); while (1) { vTaskDelay(100); } } // whether host does safe-eject static bool ejected = false; // Some MCU doesn't have enough 8KB SRAM to store the whole disk // We will use Flash as read-only disk with board that has // CFG_EXAMPLE_MSC_READONLY defined uint8_t msc_disk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] = { //------------- Block0: Boot Sector -------------// // byte_per_sector = DISK_BLOCK_SIZE; fat12_sector_num_16 = DISK_BLOCK_NUM; // sector_per_cluster = 1; reserved_sectors = 1; // fat_num = 1; fat12_root_entry_num = 16; // sector_per_fat = 1; sector_per_track = 1; head_num = 1; hidden_sectors = 0; // drive_number = 0x80; media_type = 0xf8; extended_boot_signature = 0x29; // filesystem_type = "FAT12 "; volume_serial_number = 0x1234; volume_label = "TinyUSB MSC"; // FAT magic code at offset 510-511 { 0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x01, 0x01, 0x00, 0x01, 0x10, 0x00, 0x10, 0x00, 0xF8, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0x34, 0x12, 0x00, 0x00, 'T', 'i', 'n', 'y', 'U', 'S', 'B', ' ', 'M', 'S', 'C', 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, 0x00, 0x00, // Zero up to 2 last bytes of FAT magic code 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 'F', 'A', 'T', '3', '2', ' ', ' ', ' ', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xAA }, //------------- Block1: FAT12 Table -------------// { 0xF8, 0xFF, 0xFF, 0xFF, 0x0F // // first 2 entries must be F8FF, third entry is cluster end of readme file }, //------------- Block2: Root Directory -------------// { // first entry is volume label 'T', 'i', 'n', 'y', 'U', 'S', 'B', ' ', 'M', 'S', 'C', 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0x6D, 0x65, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // second entry is readme file 'R', 'E', 'A', 'D', 'M', 'E', ' ', ' ', 'T', 'X', 'T', 0x20, 0x00, 0xC6, 0x52, 0x6D, 0x65, 0x43, 0x65, 0x43, 0x00, 0x00, 0x88, 0x6D, 0x65, 0x43, 0x02, 0x00, sizeof(README_CONTENTS) - 1, 0x00, 0x00, 0x00 // readme's files size (4 Bytes) }, //------------- Block3: Readme Content -------------// README_CONTENTS }; // Invoked when received SCSI_CMD_INQUIRY // Application fill vendor id, product id and revision with string up to 8, 16, 4 characters respectively void tud_msc_inquiry_cb(uint8_t lun, uint8_t vendor_id[8], uint8_t product_id[16], uint8_t product_rev[4]) { (void) lun; const char vid[] = "TinyUSB"; const char pid[] = "Mass Storage"; const char rev[] = "1.0"; memcpy(vendor_id, vid, strlen(vid)); memcpy(product_id, pid, strlen(pid)); memcpy(product_rev, rev, strlen(rev)); } // Invoked when received Test Unit Ready command. // return true allowing host to read/write this LUN e.g SD card inserted bool tud_msc_test_unit_ready_cb(uint8_t lun) { (void) lun; // RAM disk is ready until ejected if (ejected) { tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x3a, 0x00); return false; } return true; } // Invoked when received SCSI_CMD_READ_CAPACITY_10 and SCSI_CMD_READ_FORMAT_CAPACITY to determine the disk size // Application update block count and block size void tud_msc_capacity_cb(uint8_t lun, uint32_t *block_count, uint16_t *block_size) { (void) lun; *block_count = DISK_BLOCK_NUM; *block_size = DISK_BLOCK_SIZE; } // Invoked when received Start Stop Unit command // - Start = 0 : stopped power mode, if load_eject = 1 : unload disk storage // - Start = 1 : active mode, if load_eject = 1 : load disk storage bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject) { (void) lun; (void) power_condition; if ( load_eject ) { if (start) { // load disk storage } else { // unload disk storage ejected = true; } } return true; } // Callback invoked when received READ10 command. // Copy disk's data to buffer (up to bufsize) and return number of copied bytes. int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void *buffer, uint32_t bufsize) { (void) lun; uint8_t const *addr = msc_disk[lba] + offset; memcpy(buffer, addr, bufsize); return bufsize; } // Callback invoked when received WRITE10 command. // Process data in buffer to disk's storage and return number of written bytes int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t *buffer, uint32_t bufsize) { (void) lun; #ifndef CFG_EXAMPLE_MSC_READONLY uint8_t *addr = msc_disk[lba] + offset; memcpy(addr, buffer, bufsize); #else (void) lba; (void) offset; (void) buffer; #endif return bufsize; } // Callback invoked when received an SCSI command not in built-in list below // - READ_CAPACITY10, READ_FORMAT_CAPACITY, INQUIRY, MODE_SENSE6, REQUEST_SENSE // - READ10 and WRITE10 has their own callbacks int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void *buffer, uint16_t bufsize) { // read10 & write10 has their own callback and MUST not be handled here void const *response = NULL; uint16_t resplen = 0; // most scsi handled is input bool in_xfer = true; switch (scsi_cmd[0]) { case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL: // Host is about to read/write etc ... better not to disconnect disk resplen = 0; break; default: // Set Sense = Invalid Command Operation tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00); // negative means error -> tinyusb could stall and/or response with failed status resplen = -1; break; } // return resplen must not larger than bufsize if ( resplen > bufsize ) { resplen = bufsize; } if ( response && (resplen > 0) ) { if (in_xfer) { memcpy(buffer, response, resplen); } else { // SCSI output } } return resplen; } #endif /* SOC_USB_OTG_SUPPORTED */