208 lines
6.7 KiB
C
208 lines
6.7 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#include <tusb.h>
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#include <class/cdc/cdc_device.h>
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#include "tusb_config.h"
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#include <esp_log.h>
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//--------------------------------------------------------------------+
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// Device Descriptors
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//--------------------------------------------------------------------+
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tusb_desc_device_t const blackmagic_desc_device = {
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.bLength = sizeof(tusb_desc_device_t),
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.bDescriptorType = TUSB_DESC_DEVICE,
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.bcdUSB = 0x0200,
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// Use Interface Association Descriptor (IAD) for CDC
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// As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
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.bDeviceClass = TUSB_CLASS_MISC,
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.bDeviceSubClass = MISC_SUBCLASS_COMMON,
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.bDeviceProtocol = MISC_PROTOCOL_IAD,
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.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
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.idVendor = 0x303A, // USB_ESPRESSIF_VID,
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.idProduct = 0x4001, // USB_TUSB_PID,
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.bcdDevice = 0x0100,
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.iManufacturer = 0x01,
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.iProduct = 0x02,
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.iSerialNumber = 0x03,
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.bNumConfigurations = 0x01,
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};
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//--------------------------------------------------------------------+
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// Configuration Descriptor
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//--------------------------------------------------------------------+
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enum { ITF_NUM_CDC_0 = 0, ITF_NUM_CDC_0_DATA, ITF_NUM_CDC_1, ITF_NUM_CDC_1_DATA, ITF_NUM_TOTAL };
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#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + CFG_TUD_CDC * TUD_CDC_DESC_LEN)
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#if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || \
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CFG_TUSB_MCU == OPT_MCU_LPC40XX
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// LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number
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// 0 control, 1 In, 2 Bulk, 3 Iso, 4 In etc ...
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#define EPNUM_CDC_0_NOTIF 0x81
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#define EPNUM_CDC_0_DATA 0x02
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#define EPNUM_CDC_1_NOTIF 0x84
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#define EPNUM_CDC_1_DATA 0x05
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#else
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#define EPNUM_CDC_0_NOTIF 0x81
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#define EPNUM_CDC_0_DATA 0x02
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#define EPNUM_CDC_1_NOTIF 0x83
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#define EPNUM_CDC_1_DATA 0x04
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#endif
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uint8_t const blackmagic_desc_fs_configuration[] = {
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// Config number, interface count, string index, total length, attribute, power in mA
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TUD_CONFIG_DESCRIPTOR(
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1,
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ITF_NUM_TOTAL,
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0,
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CONFIG_TOTAL_LEN,
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TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP,
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100),
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// 1st CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
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TUD_CDC_DESCRIPTOR(
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ITF_NUM_CDC_0,
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4,
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EPNUM_CDC_0_NOTIF,
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8,
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EPNUM_CDC_0_DATA,
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0x80 | EPNUM_CDC_0_DATA,
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64),
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// 2nd CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
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TUD_CDC_DESCRIPTOR(
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ITF_NUM_CDC_1,
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4,
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EPNUM_CDC_1_NOTIF,
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8,
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EPNUM_CDC_1_DATA,
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0x80 | EPNUM_CDC_1_DATA,
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64),
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};
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#if TUD_OPT_HIGH_SPEED
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uint8_t const blackmagic_desc_hs_configuration[] = {
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// Config number, interface count, string index, total length, attribute, power in mA
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TUD_CONFIG_DESCRIPTOR(
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1,
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ITF_NUM_TOTAL,
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0,
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CONFIG_TOTAL_LEN,
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TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP,
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100),
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// 1st CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
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TUD_CDC_DESCRIPTOR(
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ITF_NUM_CDC_0,
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4,
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EPNUM_CDC_0_NOTIF,
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8,
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EPNUM_CDC_0_DATA,
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0x80 | EPNUM_CDC_0_DATA,
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512),
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// 2nd CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
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TUD_CDC_DESCRIPTOR(
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ITF_NUM_CDC_1,
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4,
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EPNUM_CDC_1_NOTIF,
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8,
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EPNUM_CDC_1_DATA,
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0x80 | EPNUM_CDC_1_DATA,
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512),
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};
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#endif
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//--------------------------------------------------------------------+
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// String Descriptors
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//--------------------------------------------------------------------+
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// array of pointer to string descriptors
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static char* blackmagic_string_desc[] = {
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(char[]){0x09, 0x04}, // 0: is supported language is English (0x0409)
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"Flipper Devices Inc.", // 1: Manufacturer
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"Blackmagic ESP32", // 2: Product
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"blackmagic", // 3: Serials, should use chip ID
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"Blackmagic ESP32", // 4: CDC Interface
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"", // 5: MSC Interface
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"", // 6: HIDs
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};
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void blackmagic_set_serial_number(const char* serial_number) {
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blackmagic_string_desc[3] = malloc(strlen("blackmagic_") + strlen(serial_number) + 1);
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strcpy(blackmagic_string_desc[3], "blackmagic_");
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strcat(blackmagic_string_desc[3], serial_number);
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}
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#define MAX_DESC_BUF_SIZE 32
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static uint16_t _desc_str[MAX_DESC_BUF_SIZE];
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// Invoked when received GET STRING DESCRIPTOR request
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// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
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uint16_t const* blackmagic_descriptor_string_cb(uint8_t index, uint16_t langid) {
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(void)langid;
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uint8_t chr_count;
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if(index == 0) {
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memcpy(&_desc_str[1], blackmagic_string_desc[0], 2);
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chr_count = 1;
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} else {
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// Convert ASCII string into UTF-16
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if(index >= sizeof(blackmagic_string_desc) / sizeof(blackmagic_string_desc[0])) {
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// ESP_LOGI("usb-str", "answer NULL");
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return NULL;
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}
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const char* str = blackmagic_string_desc[index];
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// Cap at max char
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chr_count = strlen(str);
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if(chr_count > MAX_DESC_BUF_SIZE - 1) {
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chr_count = MAX_DESC_BUF_SIZE - 1;
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}
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for(uint8_t i = 0; i < chr_count; i++) {
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_desc_str[1 + i] = str[i];
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}
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}
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// first byte is length (including header), second byte is string type
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_desc_str[0] = (TUSB_DESC_STRING << 8) | (2 * chr_count + 2);
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// ESP_LOG_BUFFER_HEXDUMP("usb-str", _desc_str, (2 * chr_count + 2), ESP_LOG_INFO);
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return _desc_str;
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}
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