update TinyUSB examples for latest TinyUSB (#325)

Author: kilograham

README.md

@@ -275,6 +275,17 @@ At the time of writing, there is only one host example available:
 
 - tinyusb_host_cdc_msc_hid
 
+### USB Dual Mode
+
+USB Dual Mode uses PIO as a USB host controller and the RP2040 USB device controller as a device controller. All the USB dual examples come directly from the TinyUSB dual examples directory [here](https://github.com/hathach/tinyusb/tree/master/examples/dual).
+Those that are supported on RP2040 devices are automatically included as part of the pico-examples
+build as targets named `tinyusb_dual_<example_name>`, e.g. https://github.com/hathach/tinyusb/tree/master/examples/dual/host_hid_to_device_cdc
+is built as `tinyusb_dual_host_hid_to_device_cdc`.
+
+At the time of writing, there is only one dual example available:
+
+- tinyusb_dual_host_hid_to_device_cdc
+
 ### Watchdog
 
 App|Description

usb/CMakeLists.txt

@@ -7,4 +7,13 @@ if (TARGET tinyusb_host)
     add_subdirectory(host)
 else ()
     message("Skipping TinyUSB host examples as TinyUSB is unavailable")
+endif ()
+if (TARGET tinyusb_pico_pio_usb)
+    if (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 11.3)
+        message("Skipping TinyUSB dual examples, as TinyUSB hw/mcu/raspberry_pi/Pico-PIO-USB does not currently compile on GCC 11.3 or greater")
+    else()
+        add_subdirectory(dual)
+    endif()
+else ()
+    message("Skipping TinyUSB dual examples, as TinyUSB hw/mcu/raspberry_pi/Pico-PIO-USB submodule unavailable")
 endif ()

usb/device/dev_hid_composite/main.c

@@ -223,7 +223,7 @@ void hid_task(void)
 // Invoked when sent REPORT successfully to host
 // Application can use this to send the next report
 // Note: For composite reports, report[0] is report ID
-void tud_hid_report_complete_cb(uint8_t instance, uint8_t const* report, uint8_t len)
+void tud_hid_report_complete_cb(uint8_t instance, uint8_t const* report, uint16_t len)
 {
   (void) instance;
   (void) len;

usb/dual/CMakeLists.txt

@@ -0,0 +1,4 @@
+set(FAMILY rp2040)
+set(BOARD pico_sdk)
+set(TINYUSB_FAMILY_PROJECT_NAME_PREFIX "tinyusb_dual_")
+add_subdirectory(${PICO_TINYUSB_PATH}/examples/dual tinyusb_dual_examples)

usb/host/CMakeLists.txt

@@ -1,6 +1,8 @@
 set(FAMILY rp2040)
 set(BOARD pico_sdk)
 set(TINYUSB_FAMILY_PROJECT_NAME_PREFIX "tinyusb_host_")
+# Hack as some host examples use $TOP in their path
+set(TOP ${PICO_TINYUSB_PATH})
 add_subdirectory(${PICO_TINYUSB_PATH}/examples/host tinyusb_host_examples)
 
 add_subdirectory(host_cdc_msc_hid)

usb/host/host_cdc_msc_hid/CMakeLists.txt

@@ -7,6 +7,7 @@ target_sources(host_cdc_msc_hid PUBLIC
         ${CMAKE_CURRENT_LIST_DIR}/hid_app.c
         ${CMAKE_CURRENT_LIST_DIR}/main.c
         ${CMAKE_CURRENT_LIST_DIR}/msc_app.c
+        ${CMAKE_CURRENT_LIST_DIR}/cdc_app.c
         )
 
 # Make sure TinyUSB can find tusb_config.h

usb/host/host_cdc_msc_hid/cdc_app.c

@@ -0,0 +1,113 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2022, 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.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "tusb.h"
+#include "bsp/board.h"
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
+//--------------------------------------------------------------------+
+
+
+//------------- IMPLEMENTATION -------------//
+
+size_t get_console_inputs(uint8_t* buf, size_t bufsize)
+{
+  size_t count = 0;
+  while (count < bufsize)
+  {
+    int ch = board_getchar();
+    if ( ch <= 0 ) break;
+
+    buf[count] = (uint8_t) ch;
+    count++;
+  }
+
+  return count;
+}
+
+void cdc_app_task(void)
+{
+  uint8_t buf[64+1]; // +1 for extra null character
+  uint32_t const bufsize = sizeof(buf)-1;
+
+  uint32_t count = get_console_inputs(buf, bufsize);
+  buf[count] = 0;
+
+  // loop over all mounted interfaces
+  for(uint8_t idx=0; idx<CFG_TUH_CDC; idx++)
+  {
+    if ( tuh_cdc_mounted(idx) )
+    {
+      // console --> cdc interfaces
+      if (count)
+      {
+        tuh_cdc_write(idx, buf, count);
+        tuh_cdc_write_flush(idx);
+      }
+    }
+  }
+}
+
+// Invoked when received new data
+void tuh_cdc_rx_cb(uint8_t idx)
+{
+  uint8_t buf[64+1]; // +1 for extra null character
+  uint32_t const bufsize = sizeof(buf)-1;
+
+  // forward cdc interfaces -> console
+  uint32_t count = tuh_cdc_read(idx, buf, bufsize);
+  buf[count] = 0;
+
+  printf((char*) buf);
+}
+
+void tuh_cdc_mount_cb(uint8_t idx)
+{
+  tuh_cdc_itf_info_t itf_info = { 0 };
+  tuh_cdc_itf_get_info(idx, &itf_info);
+
+  printf("CDC Interface is mounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.bInterfaceNumber);
+
+#ifdef CFG_TUH_CDC_LINE_CODING_ON_ENUM
+  // CFG_TUH_CDC_LINE_CODING_ON_ENUM must be defined for line coding is set by tinyusb in enumeration
+  // otherwise you need to call tuh_cdc_set_line_coding() first
+  cdc_line_coding_t line_coding = { 0 };
+  if ( tuh_cdc_get_local_line_coding(idx, &line_coding) )
+  {
+    printf("  Baudrate: %lu, Stop Bits : %u\r\n", line_coding.bit_rate, line_coding.stop_bits);
+    printf("  Parity  : %u, Data Width: %u\r\n", line_coding.parity  , line_coding.data_bits);
+  }
+#endif
+}
+
+void tuh_cdc_umount_cb(uint8_t idx)
+{
+  tuh_cdc_itf_info_t itf_info = { 0 };
+  tuh_cdc_itf_get_info(idx, &itf_info);
+
+  printf("CDC Interface is unmounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.bInterfaceNumber);
+}

usb/host/host_cdc_msc_hid/hid_app.c

@@ -247,7 +247,7 @@ static void process_generic_report(uint8_t dev_addr, uint8_t instance, uint8_t c
     // Composite report, 1st byte is report ID, data starts from 2nd byte
     uint8_t const rpt_id = report[0];
 
-    // Find report id in the arrray
+    // Find report id in the array
     for(uint8_t i=0; i<rpt_count; i++)
     {
       if (rpt_id == rpt_info_arr[i].report_id )

usb/host/host_cdc_msc_hid/main.c

@@ -35,7 +35,7 @@
 //--------------------------------------------------------------------+
 void led_blinking_task(void);
 
-extern void cdc_task(void);
+extern void cdc_app_task(void);
 extern void hid_app_task(void);
 
 /*------------- MAIN -------------*/
@@ -45,38 +45,30 @@ int main(void)
 
   printf("TinyUSB Host CDC MSC HID Example\r\n");
 
-  tusb_init();
+  // init host stack on configured roothub port
+  tuh_init(BOARD_TUH_RHPORT);
 
   while (1)
   {
     // tinyusb host task
     tuh_task();
-    led_blinking_task();
-
-#if CFG_TUH_CDC
-    cdc_task();
-#endif
 
-#if CFG_TUH_HID
+    led_blinking_task();
+    cdc_app_task();
     hid_app_task();
-#endif
   }
 
   return 0;
 }
 
 //--------------------------------------------------------------------+
-// USB CDC
+// TinyUSB Callbacks
 //--------------------------------------------------------------------+
-#if CFG_TUH_CDC
-CFG_TUSB_MEM_SECTION static char serial_in_buffer[64] = { 0 };
 
 void tuh_mount_cb(uint8_t dev_addr)
 {
   // application set-up
   printf("A device with address %d is mounted\r\n", dev_addr);
-
-  tuh_cdc_receive(dev_addr, serial_in_buffer, sizeof(serial_in_buffer), true); // schedule first transfer
 }
 
 void tuh_umount_cb(uint8_t dev_addr)
@@ -85,29 +77,6 @@ void tuh_umount_cb(uint8_t dev_addr)
   printf("A device with address %d is unmounted \r\n", dev_addr);
 }
 
-// invoked ISR context
-void tuh_cdc_xfer_isr(uint8_t dev_addr, xfer_result_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes)
-{
-  (void) event;
-  (void) pipe_id;
-  (void) xferred_bytes;
-
-  printf(serial_in_buffer);
-  tu_memclr(serial_in_buffer, sizeof(serial_in_buffer));
-
-  tuh_cdc_receive(dev_addr, serial_in_buffer, sizeof(serial_in_buffer), true); // waiting for next data
-}
-
-void cdc_task(void)
-{
-
-}
-
-#endif
-
-//--------------------------------------------------------------------+
-// TinyUSB Callbacks
-//--------------------------------------------------------------------+
 
 //--------------------------------------------------------------------+
 // Blinking Task

usb/host/host_cdc_msc_hid/msc_app.c

@@ -25,15 +25,16 @@
 
 #include "tusb.h"
 
-#if CFG_TUH_MSC
-
 //--------------------------------------------------------------------+
 // MACRO TYPEDEF CONSTANT ENUM DECLARATION
 //--------------------------------------------------------------------+
 static scsi_inquiry_resp_t inquiry_resp;
 
-bool inquiry_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
+bool inquiry_complete_cb(uint8_t dev_addr, tuh_msc_complete_data_t const * cb_data)
 {
+  msc_cbw_t const* cbw = cb_data->cbw;
+  msc_csw_t const* csw = cb_data->csw;
+
   if (csw->status != 0)
   {
     printf("Inquiry failed\r\n");
@@ -59,48 +60,12 @@ void tuh_msc_mount_cb(uint8_t dev_addr)
   printf("A MassStorage device is mounted\r\n");
 
   uint8_t const lun = 0;
-  tuh_msc_inquiry(dev_addr, lun, &inquiry_resp, inquiry_complete_cb);
-//
-//  //------------- file system (only 1 LUN support) -------------//
-//  uint8_t phy_disk = dev_addr-1;
-//  disk_initialize(phy_disk);
-//
-//  if ( disk_is_ready(phy_disk) )
-//  {
-//    if ( f_mount(phy_disk, &fatfs[phy_disk]) != FR_OK )
-//    {
-//      puts("mount failed");
-//      return;
-//    }
-//
-//    f_chdrive(phy_disk); // change to newly mounted drive
-//    f_chdir("/"); // root as current dir
-//
-//    cli_init();
-//  }
+  tuh_msc_inquiry(dev_addr, lun, &inquiry_resp, inquiry_complete_cb, 0);
 }
 
 void tuh_msc_umount_cb(uint8_t dev_addr)
 {
   (void) dev_addr;
   printf("A MassStorage device is unmounted\r\n");
-
-//  uint8_t phy_disk = dev_addr-1;
-//
-//  f_mount(phy_disk, NULL); // unmount disk
-//  disk_deinitialize(phy_disk);
-//
-//  if ( phy_disk == f_get_current_drive() )
-//  { // active drive is unplugged --> change to other drive
-//    for(uint8_t i=0; i<CFG_TUH_DEVICE_MAX; i++)
-//    {
-//      if ( disk_is_ready(i) )
-//      {
-//        f_chdrive(i);
-//        cli_init(); // refractor, rename
-//      }
-//    }
-//  }
 }
 
-#endif