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add dual/host_info_to_device_cdc example

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hathach 2024-06-18 13:29:04 +07:00
parent d945261aef
commit de62b55042
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8 changed files with 761 additions and 2 deletions
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1
examples/dual/CMakeLists.txt
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@ -10,4 +10,5 @@ if (FAMILY STREQUAL "rp2040" AND NOT TARGET tinyusb_pico_pio_usb)
else ()
# family_add_subdirectory will filter what to actually add based on selected FAMILY
family_add_subdirectory(host_hid_to_device_cdc)
family_add_subdirectory(host_info_to_device_cdc)
endif ()

40
examples/dual/host_info_to_device_cdc/CMakeLists.txt Normal file
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@ -0,0 +1,40 @@
cmake_minimum_required(VERSION 3.17)
include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
# gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
project(${PROJECT} C CXX ASM)
# Checks this example is valid for the family and initializes the project
family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
add_executable(${PROJECT})
# Example source
target_sources(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
)
# Example include
target_include_directories(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/src
)
# Configure compilation flags and libraries for the example without RTOS.
# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
family_configure_dual_usb_example(${PROJECT} noos)
# due to warnings from Pico-PIO-USB
target_compile_options(${PROJECT} PUBLIC
-Wno-error=shadow
-Wno-error=cast-align
-Wno-error=cast-qual
-Wno-error=redundant-decls
-Wno-error=sign-conversion
-Wno-error=conversion
-Wno-error=sign-compare
-Wno-error=unused-function
)

17
examples/dual/host_info_to_device_cdc/Makefile Normal file
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@ -0,0 +1,17 @@
include ../../build_system/make/make.mk
INC += \
src \
$(TOP)/hw \
# Example source
EXAMPLE_SOURCE += $(wildcard src/*.c)
SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference
SRC_C += \
src/host/hub.c \
src/host/usbh.c
include ../../build_system/make/rules.mk

6
examples/dual/host_info_to_device_cdc/only.txt Normal file
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@ -0,0 +1,6 @@
board:mimxrt1060_evk
board:mimxrt1064_evk
board:mcb1800
mcu:RP2040
mcu:ra6m5
mcu:MAX3421

285
examples/dual/host_info_to_device_cdc/src/main.c Normal file
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@ -0,0 +1,285 @@
/*
* 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.
*
*/
/* Host example will get device descriptors of attached devices and print it out via device cdc as follows:
* Device 1: ID 046d:c52f
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 0200
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d
idProduct 0xc52f
bcdDevice 2200
iManufacturer 1 Logitech
iProduct 2 USB Receiver
iSerialNumber 0
bNumConfigurations 1
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "bsp/board_api.h"
#include "tusb.h"
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF PROTYPES
//--------------------------------------------------------------------+
// Language ID: English
#define LANGUAGE_ID 0x0409
/* Blink pattern
* - 250 ms : device not mounted
* - 1000 ms : device mounted
* - 2500 ms : device is suspended
*/
enum {
BLINK_NOT_MOUNTED = 250,
BLINK_MOUNTED = 1000,
BLINK_SUSPENDED = 2500,
};
static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
static bool is_print[CFG_TUH_DEVICE_MAX+1] = { 0 };
static void print_utf16(uint16_t *temp_buf, size_t buf_len);
void led_blinking_task(void);
void cdc_task(void);
/*------------- MAIN -------------*/
int main(void) {
board_init();
printf("TinyUSB Host Information -> Device CDC Example\r\n");
// init device and host stack on configured roothub port
tud_init(BOARD_TUD_RHPORT);
tuh_init(BOARD_TUH_RHPORT);
if (board_init_after_tusb) {
board_init_after_tusb();
}
while (1) {
tud_task(); // tinyusb device task
tuh_task(); // tinyusb host task
cdc_task();
led_blinking_task();
}
return 0;
}
//--------------------------------------------------------------------+
// Device CDC
//--------------------------------------------------------------------+
// Invoked when device is mounted
void tud_mount_cb(void) {
blink_interval_ms = BLINK_MOUNTED;
}
// Invoked when device is unmounted
void tud_umount_cb(void) {
blink_interval_ms = BLINK_NOT_MOUNTED;
}
// Invoked when usb bus is suspended
// remote_wakeup_en : if host allow us to perform remote wakeup
// Within 7ms, device must draw an average of current less than 2.5 mA from bus
void tud_suspend_cb(bool remote_wakeup_en) {
(void) remote_wakeup_en;
blink_interval_ms = BLINK_SUSPENDED;
}
// Invoked when usb bus is resumed
void tud_resume_cb(void) {
blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
}
#if 1
#define cdc_printf(...) \
do { \
char _tempbuf[256]; \
int count = sprintf(_tempbuf, __VA_ARGS__); \
tud_cdc_write(_tempbuf, (uint32_t) count); \
tud_cdc_write_flush(); \
tud_task(); \
} while(0)
#endif
//#define cdc_printf printf
void print_device_info(uint8_t daddr) {
tusb_desc_device_t desc_device;
uint8_t xfer_result = tuh_descriptor_get_device_sync(daddr, &desc_device, 18);
if (XFER_RESULT_SUCCESS != xfer_result) {
tud_cdc_write_str("Failed to get device descriptor\r\n");
return;
}
cdc_printf("Device %u: ID %04x:%04x\r\n", daddr, desc_device.idVendor, desc_device.idProduct);
cdc_printf("Device Descriptor:\r\n");
cdc_printf(" bLength %u\r\n" , desc_device.bLength);
cdc_printf(" bDescriptorType %u\r\n" , desc_device.bDescriptorType);
cdc_printf(" bcdUSB %04x\r\n" , desc_device.bcdUSB);
cdc_printf(" bDeviceClass %u\r\n" , desc_device.bDeviceClass);
cdc_printf(" bDeviceSubClass %u\r\n" , desc_device.bDeviceSubClass);
cdc_printf(" bDeviceProtocol %u\r\n" , desc_device.bDeviceProtocol);
cdc_printf(" bMaxPacketSize0 %u\r\n" , desc_device.bMaxPacketSize0);
cdc_printf(" idVendor 0x%04x\r\n" , desc_device.idVendor);
cdc_printf(" idProduct 0x%04x\r\n" , desc_device.idProduct);
cdc_printf(" bcdDevice %04x\r\n" , desc_device.bcdDevice);
// Get String descriptor using Sync API
uint16_t buf[128];
cdc_printf(" iManufacturer %u " , desc_device.iManufacturer);
xfer_result = tuh_descriptor_get_manufacturer_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
if (XFER_RESULT_SUCCESS == xfer_result ) {
print_utf16(buf, TU_ARRAY_SIZE(buf));
}
tud_cdc_write_str("\r\n");
cdc_printf(" iProduct %u " , desc_device.iProduct);
xfer_result = tuh_descriptor_get_product_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
if (XFER_RESULT_SUCCESS == xfer_result) {
print_utf16(buf, TU_ARRAY_SIZE(buf));
}
tud_cdc_write_str("\r\n");
cdc_printf(" iSerialNumber %u " , desc_device.iSerialNumber);
xfer_result = tuh_descriptor_get_serial_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
if (XFER_RESULT_SUCCESS == xfer_result) {
print_utf16(buf, TU_ARRAY_SIZE(buf));
}
tud_cdc_write_str("\r\n");
cdc_printf(" bNumConfigurations %u\r\n" , desc_device.bNumConfigurations);
}
void cdc_task(void) {
if (tud_cdc_connected()) {
for (uint8_t daddr = 1; daddr <= CFG_TUH_DEVICE_MAX; daddr++) {
if (tuh_mounted(daddr)) {
if (is_print[daddr]) {
is_print[daddr] = false;
print_device_info(daddr);
tud_cdc_write_flush();
}
}
}
}
}
//--------------------------------------------------------------------+
// Host Get device information
//--------------------------------------------------------------------+
void tuh_mount_cb(uint8_t daddr) {
printf("mounted device %u\r\n", daddr);
is_print[daddr] = true;
}
void tuh_umount_cb(uint8_t daddr) {
printf("unmounted device %u\r\n", daddr);
is_print[daddr] = false;
}
//--------------------------------------------------------------------+
// Blinking Task
//--------------------------------------------------------------------+
void led_blinking_task(void) {
static uint32_t start_ms = 0;
static bool led_state = false;
// Blink every interval ms
if (board_millis() - start_ms < blink_interval_ms) return; // not enough time
start_ms += blink_interval_ms;
board_led_write(led_state);
led_state = 1 - led_state; // toggle
}
//--------------------------------------------------------------------+
// String Descriptor Helper
//--------------------------------------------------------------------+
static void _convert_utf16le_to_utf8(const uint16_t *utf16, size_t utf16_len, uint8_t *utf8, size_t utf8_len) {
// TODO: Check for runover.
(void)utf8_len;
// Get the UTF-16 length out of the data itself.
for (size_t i = 0; i < utf16_len; i++) {
uint16_t chr = utf16[i];
if (chr < 0x80) {
*utf8++ = chr & 0xffu;
} else if (chr < 0x800) {
*utf8++ = (uint8_t)(0xC0 | (chr >> 6 & 0x1F));
*utf8++ = (uint8_t)(0x80 | (chr >> 0 & 0x3F));
} else {
// TODO: Verify surrogate.
*utf8++ = (uint8_t)(0xE0 | (chr >> 12 & 0x0F));
*utf8++ = (uint8_t)(0x80 | (chr >> 6 & 0x3F));
*utf8++ = (uint8_t)(0x80 | (chr >> 0 & 0x3F));
}
// TODO: Handle UTF-16 code points that take two entries.
}
}
// Count how many bytes a utf-16-le encoded string will take in utf-8.
static int _count_utf8_bytes(const uint16_t *buf, size_t len) {
size_t total_bytes = 0;
for (size_t i = 0; i < len; i++) {
uint16_t chr = buf[i];
if (chr < 0x80) {
total_bytes += 1;
} else if (chr < 0x800) {
total_bytes += 2;
} else {
total_bytes += 3;
}
// TODO: Handle UTF-16 code points that take two entries.
}
return (int) total_bytes;
}
static void print_utf16(uint16_t *temp_buf, size_t buf_len) {
if ((temp_buf[0] & 0xff) == 0) return; // empty
size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t);
size_t utf8_len = (size_t) _count_utf8_bytes(temp_buf + 1, utf16_len);
_convert_utf16le_to_utf8(temp_buf + 1, utf16_len, (uint8_t *) temp_buf, sizeof(uint16_t) * buf_len);
((uint8_t*) temp_buf)[utf8_len] = '\0';
tud_cdc_write(temp_buf, utf8_len);
tud_cdc_write_flush();
tud_task();
}

143
examples/dual/host_info_to_device_cdc/src/tusb_config.h Normal file
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@ -0,0 +1,143 @@
/*
* 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.
*
*/
#ifndef TUSB_CONFIG_H_
#define TUSB_CONFIG_H_
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// Board Specific Configuration
//--------------------------------------------------------------------+
// RHPort number used for device can be defined by board.mk, default to port 0
#ifndef BOARD_TUD_RHPORT
#define BOARD_TUD_RHPORT 0
#endif
// RHPort max operational speed can defined by board.mk
#ifndef BOARD_TUD_MAX_SPEED
#define BOARD_TUD_MAX_SPEED OPT_MODE_DEFAULT_SPEED
#endif
// RHPort number used for host can be defined by board.mk, default to port 1
#ifndef BOARD_TUH_RHPORT
#define BOARD_TUH_RHPORT 1
#endif
// RHPort max operational speed can defined by board.mk
#ifndef BOARD_TUH_MAX_SPEED
#define BOARD_TUH_MAX_SPEED OPT_MODE_DEFAULT_SPEED
#endif
//--------------------------------------------------------------------
// COMMON CONFIGURATION
//--------------------------------------------------------------------
// defined by compiler flags for flexibility
#ifndef CFG_TUSB_MCU
#error CFG_TUSB_MCU must be defined
#endif
#ifndef CFG_TUSB_OS
#define CFG_TUSB_OS OPT_OS_NONE
#endif
#ifndef CFG_TUSB_DEBUG
#define CFG_TUSB_DEBUG 0
#endif
// Enable Device stack, Default is max speed that hardware controller could support with on-chip PHY
#define CFG_TUD_ENABLED 1
#define CFG_TUD_MAX_SPEED BOARD_TUD_MAX_SPEED
// Enable Host stack, Default is max speed that hardware controller could support with on-chip PHY
#define CFG_TUH_ENABLED 1
#define CFG_TUH_MAX_SPEED BOARD_TUH_MAX_SPEED
#if CFG_TUSB_MCU == OPT_MCU_RP2040
// Use pico-pio-usb as host controller for raspberry rp2040
#define CFG_TUH_RPI_PIO_USB 1
#endif
/* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
* Tinyusb use follows macros to declare transferring memory so that they can be put
* into those specific section.
* e.g
* - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
* - CFG_TUSB_MEM_ALIGN : __attribute__ ((aligned(4)))
*/
#ifndef CFG_TUD_MEM_SECTION
#define CFG_TUD_MEM_SECTION
#endif
#ifndef CFG_TUD_MEM_ALIGN
#define CFG_TUD_MEM_ALIGN __attribute__ ((aligned(4)))
#endif
//--------------------------------------------------------------------
// DEVICE CONFIGURATION
//--------------------------------------------------------------------
#ifndef CFG_TUD_ENDPOINT0_SIZE
#define CFG_TUD_ENDPOINT0_SIZE 64
#endif
//------------- CLASS -------------//
#define CFG_TUD_CDC 1
// CDC FIFO size of TX and RX
#define CFG_TUD_CDC_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
#define CFG_TUD_CDC_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
// CDC Endpoint transfer buffer size, more is faster
#define CFG_TUD_CDC_EP_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
//--------------------------------------------------------------------
// HOST CONFIGURATION
//--------------------------------------------------------------------
// Size of buffer to hold descriptors and other data used for enumeration
#define CFG_TUH_ENUMERATION_BUFSIZE 256
#ifndef CFG_TUH_MEM_SECTION
#define CFG_TUH_MEM_SECTION
#endif
#ifndef CFG_TUH_MEM_ALIGN
#define CFG_TUH_MEM_ALIGN __attribute__ ((aligned(4)))
#endif
#define CFG_TUH_HUB 1
// max device support (excluding hub device)
#define CFG_TUH_DEVICE_MAX (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
#ifdef __cplusplus
}
#endif
#endif

268
examples/dual/host_info_to_device_cdc/src/usb_descriptors.c Normal file
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@ -0,0 +1,268 @@
/*
* 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 "bsp/board_api.h"
#include "tusb.h"
/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
* Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
*
* Auto ProductID layout's Bitmap:
* [MSB] HID | MSC | CDC [LSB]
*/
#define _PID_MAP(itf, n) ( (CFG_TUD_##itf) << (n) )
#define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
_PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4) )
#define USB_VID 0xCafe
#define USB_BCD 0x0200
//--------------------------------------------------------------------+
// Device Descriptors
//--------------------------------------------------------------------+
tusb_desc_device_t const desc_device = {
.bLength = sizeof(tusb_desc_device_t),
.bDescriptorType = TUSB_DESC_DEVICE,
.bcdUSB = USB_BCD,
// Use Interface Association Descriptor (IAD) for CDC
// As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
.bDeviceClass = TUSB_CLASS_MISC,
.bDeviceSubClass = MISC_SUBCLASS_COMMON,
.bDeviceProtocol = MISC_PROTOCOL_IAD,
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
.idVendor = USB_VID,
.idProduct = USB_PID,
.bcdDevice = 0x0100,
.iManufacturer = 0x01,
.iProduct = 0x02,
.iSerialNumber = 0x03,
.bNumConfigurations = 0x01
};
// Invoked when received GET DEVICE DESCRIPTOR
// Application return pointer to descriptor
uint8_t const* tud_descriptor_device_cb(void) {
return (uint8_t const*) &desc_device;
}
//--------------------------------------------------------------------+
// Configuration Descriptor
//--------------------------------------------------------------------+
enum {
ITF_NUM_CDC = 0,
ITF_NUM_CDC_DATA,
ITF_NUM_TOTAL
};
#if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || CFG_TUSB_MCU == OPT_MCU_LPC40XX
// LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number
// 0 control, 1 In, 2 Bulk, 3 Iso, 4 In, 5 Bulk etc ...
#define EPNUM_CDC_NOTIF 0x81
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x82
#elif CFG_TUSB_MCU == OPT_MCU_SAMG || CFG_TUSB_MCU == OPT_MCU_SAMX7X
// SAMG & SAME70 don't support a same endpoint number with different direction IN and OUT
// e.g EP1 OUT & EP1 IN cannot exist together
#define EPNUM_CDC_NOTIF 0x81
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x83
#elif CFG_TUSB_MCU == OPT_MCU_CXD56
// CXD56 doesn't support a same endpoint number with different direction IN and OUT
// e.g EP1 OUT & EP1 IN cannot exist together
// CXD56 USB driver has fixed endpoint type (bulk/interrupt/iso) and direction (IN/OUT) by its number
// 0 control (IN/OUT), 1 Bulk (IN), 2 Bulk (OUT), 3 In (IN), 4 Bulk (IN), 5 Bulk (OUT), 6 In (IN)
#define EPNUM_CDC_NOTIF 0x83
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x81
#elif CFG_TUSB_MCU == OPT_MCU_FT90X || CFG_TUSB_MCU == OPT_MCU_FT93X
// FT9XX doesn't support a same endpoint number with different direction IN and OUT
// e.g EP1 OUT & EP1 IN cannot exist together
#define EPNUM_CDC_NOTIF 0x81
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x83
#else
#define EPNUM_CDC_NOTIF 0x81
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x82
#endif
#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
// full speed configuration
uint8_t const desc_fs_configuration[] = {
// Config number, interface count, string index, total length, attribute, power in mA
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
// Interface number, string index, EP notification address and size, EP data address (out, in) and size.
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64),
};
#if TUD_OPT_HIGH_SPEED
// Per USB specs: high speed capable device must report device_qualifier and other_speed_configuration
// high speed configuration
uint8_t const desc_hs_configuration[] = {
// Config number, interface count, string index, total length, attribute, power in mA
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
// Interface number, string index, EP notification address and size, EP data address (out, in) and size.
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 512),
};
// other speed configuration
uint8_t desc_other_speed_config[CONFIG_TOTAL_LEN];
// device qualifier is mostly similar to device descriptor since we don't change configuration based on speed
tusb_desc_device_qualifier_t const desc_device_qualifier = {
.bLength = sizeof(tusb_desc_device_qualifier_t),
.bDescriptorType = TUSB_DESC_DEVICE_QUALIFIER,
.bcdUSB = USB_BCD,
.bDeviceClass = TUSB_CLASS_MISC,
.bDeviceSubClass = MISC_SUBCLASS_COMMON,
.bDeviceProtocol = MISC_PROTOCOL_IAD,
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
.bNumConfigurations = 0x01,
.bReserved = 0x00
};
// Invoked when received GET DEVICE QUALIFIER DESCRIPTOR request
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete.
// device_qualifier descriptor describes information about a high-speed capable device that would
// change if the device were operating at the other speed. If not highspeed capable stall this request.
uint8_t const* tud_descriptor_device_qualifier_cb(void) {
return (uint8_t const*) &desc_device_qualifier;
}
// Invoked when received GET OTHER SEED CONFIGURATION DESCRIPTOR request
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
// Configuration descriptor in the other speed e.g if high speed then this is for full speed and vice versa
uint8_t const* tud_descriptor_other_speed_configuration_cb(uint8_t index) {
(void) index; // for multiple configurations
// if link speed is high return fullspeed config, and vice versa
// Note: the descriptor type is OHER_SPEED_CONFIG instead of CONFIG
memcpy(desc_other_speed_config,
(tud_speed_get() == TUSB_SPEED_HIGH) ? desc_fs_configuration : desc_hs_configuration,
CONFIG_TOTAL_LEN);
desc_other_speed_config[1] = TUSB_DESC_OTHER_SPEED_CONFIG;
return desc_other_speed_config;
}
#endif // highspeed
// Invoked when received GET CONFIGURATION DESCRIPTOR
// Application return pointer to descriptor
// Descriptor contents must exist long enough for transfer to complete
uint8_t const* tud_descriptor_configuration_cb(uint8_t index) {
(void) index; // for multiple configurations
#if TUD_OPT_HIGH_SPEED
// Although we are highspeed, host may be fullspeed.
return (tud_speed_get() == TUSB_SPEED_HIGH) ? desc_hs_configuration : desc_fs_configuration;
#else
return desc_fs_configuration;
#endif
}
//--------------------------------------------------------------------+
// String Descriptors
//--------------------------------------------------------------------+
// String Descriptor Index
enum {
STRID_LANGID = 0,
STRID_MANUFACTURER,
STRID_PRODUCT,
STRID_SERIAL,
};
// array of pointer to string descriptors
char const* string_desc_arr[] = {
(const char[]) {0x09, 0x04}, // 0: is supported language is English (0x0409)
"TinyUSB", // 1: Manufacturer
"TinyUSB Device", // 2: Product
NULL, // 3: Serials will use unique ID if possible
"TinyUSB CDC", // 4: CDC Interface
};
static uint16_t _desc_str[32 + 1];
// Invoked when received GET STRING DESCRIPTOR request
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
(void) langid;
size_t chr_count;
switch (index) {
case STRID_LANGID:
memcpy(&_desc_str[1], string_desc_arr[0], 2);
chr_count = 1;
break;
case STRID_SERIAL:
chr_count = board_usb_get_serial(_desc_str + 1, 32);
break;
default:
// Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
// https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
if (!(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0]))) return NULL;
const char* str = string_desc_arr[index];
// Cap at max char
chr_count = strlen(str);
size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
if (chr_count > max_count) chr_count = max_count;
// Convert ASCII string into UTF-16
for (size_t i = 0; i < chr_count; i++) {
_desc_str[1 + i] = str[i];
}
break;
}
// first byte is length (including header), second byte is string type
_desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
return _desc_str;
}

3
examples/host/device_info/src/main.c
View File

@ -23,8 +23,7 @@
*
*/
/* Host example will get device descriptors of attached devices and print it out via
* device cdc (Serial) as follows:
/* Host example will get device descriptors of attached devices and print it out via uart/rtt (logger) as follows:
* Device 1: ID 046d:c52f
Device Descriptor:
bLength 18