Merge pull request #565 from code-fiasco/stm32f4-support

STM32 F4 Support

Author: hathach

README.md

@@ -50,6 +50,8 @@ Note: For ESP32 port, version before v3.0 requires all descriptors must be speci
 Following is cores without built-in support
 
 - **mbed_rp2040**
+- **[stm32duino/Arduino_Core_STM32](https://github.com/stm32duino/Arduino_Core_STM32)**
+  - Still WIP, only support/tested with F4, only support OTG_FS  
 
 It is still possible to use TinyUSB but with some limits such as:
 

src/arduino/ports/stm32/Adafruit_TinyUSB_stm32.cpp

@@ -0,0 +1,100 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019, hathach for Adafruit
+ *
+ * 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 "tusb_option.h"
+
+#if (defined(ARDUINO_ARCH_STM32) ||                                            \
+     defined(ARDUINO_ARCH_ARDUINO_CORE_STM32)) &&                              \
+    CFG_TUD_ENABLED
+
+#define USE_HAL_DRIVER
+#include "Arduino.h"
+#include "arduino/Adafruit_TinyUSB_API.h"
+#include "stm32f4xx_hal.h"
+#include "stm32f4xx_hal_rcc.h"
+#include "tusb.h"
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+extern "C" {
+
+void OTG_FS_IRQHandler(void) { tud_int_handler(0); }
+
+void yield(void) {
+  tud_task();
+  if (tud_cdc_connected()) {
+    tud_cdc_write_flush();
+  }
+}
+
+} // extern "C"
+
+//--------------------------------------------------------------------+
+// Porting API
+//--------------------------------------------------------------------+
+void TinyUSB_Port_InitDevice(uint8_t rhport) {
+  (void)rhport;
+
+  // Enable clocks FIRST
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+
+  // Configure USB pins (PA11 = DM, PA12 = DP)
+  GPIO_InitTypeDef GPIO_InitStruct = {};
+  GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+  GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  // Enable USB IRQ
+  NVIC_SetPriority(OTG_FS_IRQn, 0);
+  NVIC_EnableIRQ(OTG_FS_IRQn);
+
+  // Disable VBUS sensing (we're bus-powered, don't need it)
+  USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS;
+  USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSBSEN;
+  USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSASEN;
+
+  // Initialize TinyUSB device stack
+  tud_init(rhport);
+}
+
+void TinyUSB_Port_EnterDFU(void) {
+  // Optional - implement bootloader entry if needed
+}
+
+uint8_t TinyUSB_Port_GetSerialNumber(uint8_t serial_id[16]) {
+  volatile uint32_t *uid =
+      (volatile uint32_t *)0x1FFF7A10; // STM32F411 UID base
+  uint32_t *serial_32 = (uint32_t *)serial_id;
+  serial_32[0] = uid[0];
+  serial_32[1] = uid[1];
+  serial_32[2] = uid[2];
+  return 12;
+}
+
+#endif // ARDUINO_ARCH_STM32

src/arduino/ports/stm32/tusb_config_stm32.h

@@ -0,0 +1,76 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019, hathach for Adafruit
+ *
+ * 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_STM32_H_
+#define TUSB_CONFIG_STM32_H_
+
+//--------------------------------------------------------------------
+// COMMON CONFIGURATION
+//--------------------------------------------------------------------
+// MCU / OS
+#define CFG_TUSB_MCU OPT_MCU_STM32F4
+#define CFG_TUSB_OS OPT_OS_NONE
+
+// Debug
+#ifndef CFG_TUSB_DEBUG
+#define CFG_TUSB_DEBUG 0
+#endif
+
+#define CFG_TUSB_MEM_SECTION
+#define CFG_TUSB_MEM_ALIGN __attribute__((aligned(4)))
+
+//--------------------------------------------------------------------
+// DEVICE CONFIGURATION
+//--------------------------------------------------------------------
+#define CFG_TUD_ENABLED 1
+#define CFG_TUD_MAX_SPEED OPT_MODE_FULL_SPEED // TODO some are highspeed
+#define CFG_TUD_ENDPOINT0_SIZE 64
+
+// Classes
+#define CFG_TUD_CDC 1
+#define CFG_TUD_MSC 1
+#define CFG_TUD_HID 1
+#define CFG_TUD_MIDI 1
+#define CFG_TUD_VENDOR 1
+
+// Buffer sizes
+#define CFG_TUD_CDC_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_EP_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_MSC_EP_BUFSIZE 512
+#define CFG_TUD_HID_EP_BUFSIZE 64
+#define CFG_TUD_MIDI_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 128)
+#define CFG_TUD_MIDI_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 128)
+#define CFG_TUD_VENDOR_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_VENDOR_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
+
+// Serial Redirect
+#define Serial SerialTinyUSB
+
+//--------------------------------------------------------------------
+// Host Configuration
+//--------------------------------------------------------------------
+#define CFG_TUH_ENABLED 0 // disable for now
+
+#endif

src/tusb_config.h

@@ -43,6 +43,10 @@
 
 #elif defined(ARDUINO_ARCH_CH32) || defined(CH32V20x) || defined(CH32V30x)
   #include "arduino/ports/ch32/tusb_config_ch32.h"
+
+#elif defined(ARDUINO_ARCH_STM32) || defined(ARDUINO_ARCH_ARDUINO_CORE_STM32)
+  #include "arduino/ports/stm32/tusb_config_stm32.h"
+  
 #else
   #error TinyUSB Arduino Library does not support your core yet
 #endif