/** * @file main.c * @brief * * Copyright (c) 2021 Bouffalolab team * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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 "hal_usb.h" #include "usbd_core.h" #include "usbd_cdc.h" #define CDC_IN_EP 0x82 #define CDC_OUT_EP 0x01 #define CDC_INT_EP 0x83 #define USBD_VID 0xFFFF #define USBD_PID 0xFFFF #define USBD_MAX_POWER 100 #define USBD_LANGID_STRING 1033 #define USB_CONFIG_SIZE (9 + CDC_ACM_DESCRIPTOR_LEN + CDC_ACM_DESCRIPTOR_LEN) USB_DESC_SECTION const uint8_t cdc_descriptor[] = { USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x02, 0x02, 0x01, USBD_VID, USBD_PID, 0x0100, 0x01), USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x04, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER), CDC_ACM_DESCRIPTOR_INIT(0x00, 0x85, CDC_OUT_EP, CDC_IN_EP, 0x02), CDC_ACM_DESCRIPTOR_INIT(0x02, 0x86, 0x04, 0x83, 0x02), /////////////////////////////////////// /// string0 descriptor /////////////////////////////////////// USB_LANGID_INIT(USBD_LANGID_STRING), /////////////////////////////////////// /// string1 descriptor /////////////////////////////////////// 0x12, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ 'B', 0x00, /* wcChar0 */ 'o', 0x00, /* wcChar1 */ 'u', 0x00, /* wcChar2 */ 'f', 0x00, /* wcChar3 */ 'f', 0x00, /* wcChar4 */ 'a', 0x00, /* wcChar5 */ 'l', 0x00, /* wcChar6 */ 'o', 0x00, /* wcChar7 */ /////////////////////////////////////// /// string2 descriptor /////////////////////////////////////// 0x24, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ 'B', 0x00, /* wcChar0 */ 'o', 0x00, /* wcChar1 */ 'u', 0x00, /* wcChar2 */ 'f', 0x00, /* wcChar3 */ 'f', 0x00, /* wcChar4 */ 'a', 0x00, /* wcChar5 */ 'l', 0x00, /* wcChar6 */ 'o', 0x00, /* wcChar7 */ ' ', 0x00, /* wcChar8 */ 'C', 0x00, /* wcChar9 */ 'D', 0x00, /* wcChar10 */ 'C', 0x00, /* wcChar11 */ ' ', 0x00, /* wcChar13 */ 'D', 0x00, /* wcChar14 */ 'E', 0x00, /* wcChar15 */ 'M', 0x00, /* wcChar16 */ 'O', 0x00, /* wcChar17 */ /////////////////////////////////////// /// string3 descriptor /////////////////////////////////////// 0x16, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ '2', 0x00, /* wcChar0 */ '0', 0x00, /* wcChar1 */ '2', 0x00, /* wcChar2 */ '1', 0x00, /* wcChar3 */ '0', 0x00, /* wcChar4 */ '3', 0x00, /* wcChar5 */ '1', 0x00, /* wcChar6 */ '0', 0x00, /* wcChar7 */ '0', 0x00, /* wcChar8 */ '0', 0x00, /* wcChar9 */ /////////////////////////////////////// /// device qualifier descriptor /////////////////////////////////////// 0x0a, USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER, 0x00, 0x02, 0x02, 0x02, 0x01, 0x40, 0x01, 0x00, 0x00 }; bool zlp_flag = false; uint32_t actual_write_length = 0; uint32_t total_recv_length = 0; uint32_t rx_pos = 0; uint8_t tx_pos = 0; uint8_t out_buffer[4096]; void usbd_cdc_acm_bulk_out(uint8_t ep) { uint32_t actual_read_length = 0; if (usbd_ep_read(ep, &out_buffer[rx_pos], 64, &actual_read_length) < 0) { USBD_LOG_DBG("Read DATA Packet failed\r\n"); usbd_ep_set_stall(ep); return; } usbd_ep_read(ep, NULL, 0, NULL); rx_pos += actual_read_length; total_recv_length += actual_read_length; actual_write_length = total_recv_length; if (rx_pos > 4096) { rx_pos = 0; } } void usbd_cdc_acm_bulk_in(uint8_t ep) { if ((zlp_flag == false) && actual_write_length) { if (actual_write_length > 64) { usbd_ep_write(ep, (uint8_t *)&out_buffer[tx_pos], 64, NULL); actual_write_length -= 64; tx_pos += 64; } else { usbd_ep_write(ep, (uint8_t *)&out_buffer[tx_pos], actual_write_length, NULL); actual_write_length = 0; tx_pos = 0; total_recv_length = 0; } if (!actual_write_length && !(total_recv_length % 64)) { MSG("zlp\r\n"); zlp_flag = true; } } else if (zlp_flag) { usbd_ep_write(ep, NULL, 0, NULL); zlp_flag = false; } } usbd_class_t cdc_class1; usbd_interface_t cdc_cmd_intf1; usbd_interface_t cdc_data_intf1; usbd_endpoint_t cdc_out_ep1 = { .ep_addr = CDC_OUT_EP, .ep_cb = usbd_cdc_acm_bulk_out }; usbd_endpoint_t cdc_in_ep1 = { .ep_addr = CDC_IN_EP, .ep_cb = usbd_cdc_acm_bulk_in }; usbd_class_t cdc_class2; usbd_interface_t cdc_cmd_intf2; usbd_interface_t cdc_data_intf2; usbd_endpoint_t cdc_out_ep2 = { .ep_addr = 0x04, .ep_cb = usbd_cdc_acm_bulk_out }; usbd_endpoint_t cdc_in_ep2 = { .ep_addr = 0x83, .ep_cb = usbd_cdc_acm_bulk_in }; struct device *usb_fs; extern struct device *usb_dc_init(void); int main(void) { bflb_platform_init(0); usbd_desc_register(cdc_descriptor); usbd_cdc_add_acm_interface(&cdc_class1, &cdc_cmd_intf1); usbd_cdc_add_acm_interface(&cdc_class1, &cdc_data_intf1); usbd_interface_add_endpoint(&cdc_data_intf1, &cdc_out_ep1); usbd_interface_add_endpoint(&cdc_data_intf1, &cdc_in_ep1); usbd_cdc_add_acm_interface(&cdc_class2, &cdc_cmd_intf2); usbd_cdc_add_acm_interface(&cdc_class2, &cdc_data_intf2); usbd_interface_add_endpoint(&cdc_data_intf2, &cdc_out_ep2); usbd_interface_add_endpoint(&cdc_data_intf2, &cdc_in_ep2); usb_fs = usb_dc_init(); if (usb_fs) { device_control(usb_fs, DEVICE_CTRL_SET_INT, (void *)(USB_EP1_DATA_OUT_IT | USB_EP2_DATA_IN_IT | USB_EP4_DATA_OUT_IT | USB_EP3_DATA_IN_IT)); } while (1) { } }