pkg/tinyusb: add STM32 USB FS device driver

pkg/tinyusb/Kconfig

@@ -30,11 +30,11 @@ menuconfig PACKAGE_TINYUSB
     select MODULE_TINYUSB_PORTABLE_SYNOPSYS_DWC2 if CPU_STM32 && CPU_FAM_F7
     select MODULE_TINYUSB_PORTABLE_SYNOPSYS_DWC2 if CPU_STM32 && CPU_FAM_H7
     select MODULE_TINYUSB_PORTABLE_SYNOPSYS_DWC2 if CPU_STM32 && CPU_FAM_L4
-    select MODULE_TINYUSB_PORTABLE_STM32_FSEDV if CPU_STM32 && CPU_FAM_F0
-    select MODULE_TINYUSB_PORTABLE_STM32_FSEDV if CPU_STM32 && CPU_FAM_F1
-    select MODULE_TINYUSB_PORTABLE_STM32_FSEDV if CPU_STM32 && CPU_FAM_G4
-    select MODULE_TINYUSB_PORTABLE_STM32_FSEDV if CPU_STM32 && CPU_FAM_L0
-    select MODULE_TINYUSB_PORTABLE_STM32_FSEDV if CPU_STM32 && CPU_FAM_WB
+    select MODULE_TINYUSB_PORTABLE_STM32_FSDEV if CPU_STM32 && CPU_FAM_F0
+    select MODULE_TINYUSB_PORTABLE_STM32_FSDEV if CPU_STM32 && CPU_FAM_F1
+    select MODULE_TINYUSB_PORTABLE_STM32_FSDEV if CPU_STM32 && CPU_FAM_G4
+    select MODULE_TINYUSB_PORTABLE_STM32_FSDEV if CPU_STM32 && CPU_FAM_L0
+    select MODULE_TINYUSB_PORTABLE_STM32_FSDEV if CPU_STM32 && CPU_FAM_WB
     select MODULE_TINYUSB_PORTABLE_MICROCHIP if CPU_FAM_SAMD21 || CPU_FAM_SAMR21 \
            || CPU_COMMON_SAMD5X || CPU_FAM_SAML21 || CPU_FAM_SAMR34 \
            || CPU_FAM_SAMR30

pkg/tinyusb/Makefile.dep

@@ -58,9 +58,13 @@ else ifneq (,$(filter saml21 samd5x samd21,$(CPU)))
   USEMODULE += tinyusb_portable_microchip
 else ifeq (stm32,$(CPU))
   ifneq (,$(filter f2 f4 f7 h7 l4,$(CPU_FAM)))
+    # STM32 families F2, F4, F7, H7 and L4 use the Synopsys DWC2 USB OTG IP core
     USEMODULE += tinyusb_portable_synopsys_dwc2
-  else ifneq (,$(filter f0 f1 g4 l0 wb,$(CPU_FAM)))
-    # TODO not yet working, the driver has to be ported
+  else ifneq (,$(filter stm32f105% stm32f107%,$(CPU_MODEL)))
+    # STM32F105xx and STM32F107xx also use the Synopsys DWC2 USB OTG IP core
+    USEMODULE += tinyusb_portable_synopsys_dwc2
+  else
+    # All other STM32 MCUs use the USB Device FS IP core.
     USEMODULE += tinyusb_portable_stm32_fsdev
   endif
 endif

pkg/tinyusb/Makefile.include

@@ -12,6 +12,7 @@ else ifeq (esp32s3,$(CPU_FAM))
   CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_ESP32S3
 else ifeq (stm32,$(CPU))
   CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_STM32$(call uppercase_and_underscore,$(CPU_FAM))
+  CFLAGS += -Dasm=__asm
 else ifeq (saml21,$(CPU))
   CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_SAML21
 else ifeq (samd21,$(CPU))

pkg/tinyusb/hw/Makefile

@@ -2,6 +2,17 @@ MODULE = tinyusb_hw
 
 ifneq (,$(filter saml21 samd5x samd21,$(CPU)))
   SRC = hw_sam0.c
+else ifeq (stm32,$(CPU))
+  ifeq (,$(filter f1 f3 wb,$(CPU_FAM)))
+    # All STM32 families except for F1, F3 and WB use the Synopsys DWC2 USB OTG IP core
+    SRC += hw_stm32_otg.c
+  else ifneq (,$(filter stm32f105% stm32f107%,$(CPU_MODEL)))
+    # STM32F105xx and STM32F107xx also use the Synopsys DWC2 USB OTG IP core
+    SRC += hw_stm32_otg.c
+  else
+    # All other STM32 MCUs use the USB Device FS IP core.
+    SRC += hw_stm32_fsdev.c
+  endif
 else
   SRC = hw_$(CPU).c
 endif

pkg/tinyusb/hw/hw_stm32_fsdev.c

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2022 Gunar Schorcht
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     pkg_tinyusb
+ * @brief
+ * @{
+ *
+ * @brief       tinyUSB hardware driver for STM32 MCUs with USB FS device port
+ * @author      Gunar Schorcht <[email protected]>
+ */
+
+#include <errno.h>
+
+#include "periph_conf.h"
+#include "periph/gpio.h"
+#include "periph/pm.h"
+
+#include "tusb.h"
+#include "device/usbd.h"
+#include "host/usbh.h"
+
+static int tinyusb_hw_init_dev(const stm32_usbdev_fs_config_t *conf)
+{
+    /* Block both STOP and STANDBY, TODO STOP is unblocked during USB suspend
+     * status */
+    pm_block(STM32_PM_STOP);
+    pm_block(STM32_PM_STANDBY);
+
+    /* Enable the clock to the peripheral */
+    periph_clk_en(conf->apb, conf->rcc_mask);
+
+#if defined(PWR_CR2_USV)
+    /* Validate USB Supply */
+    PWR->CR2 |= PWR_CR2_USV;
+#endif
+
+#if defined(RCC_APB1SMENR_USBSMEN)
+    RCC->APB1SMENR |= RCC_APB1SMENR_USBSMEN;
+#elif defined(RCC_APB1SMENR1_USBSMEN)
+    RCC->APB1SMENR1 |= RCC_APB1SMENR1_USBSMEN;
+#endif
+
+#if defined(CRS_CR_AUTOTRIMEN) && defined(CRS_CR_CEN)
+    /* Enable CRS with auto trim enabled */
+    CRS->CR |=  (CRS_CR_AUTOTRIMEN | CRS_CR_CEN);
+#endif
+
+    if (conf->af != GPIO_AF_UNDEF) {
+        /* Configure AF for the pins */
+        gpio_init_af(conf->dp, conf->af);
+        gpio_init_af(conf->dm, conf->af);
+    }
+
+    if (conf->disconn != GPIO_UNDEF) {
+        /* In case the MCU has no internal D+ pullup, a GPIO is used to
+         * connect/disconnect from USB bus */
+        gpio_init(conf->disconn, GPIO_OUT);
+        gpio_set(conf->disconn);
+    }
+
+    return 0;
+}
+
+int tinyusb_hw_init(void)
+{
+    for (unsigned i = 0; i < USBDEV_NUMOF; i++) {
+        if (tinyusb_hw_init_dev(&stm32_usbdev_fs_config[i]) != 0) {
+            return -ENODEV;
+        }
+    }
+    return 0;
+}
+
+void USBDEV_ISR(void)
+{
+    /* call device interrupt handler with the last device */
+    if (IS_USED(MODULE_TINYUSB_DEVICE)) {
+        tud_int_handler(TINYUSB_TUD_RHPORT);
+    }
+
+    cortexm_isr_end();
+}

pkg/tinyusb/hw/hw_stm32.c → pkg/tinyusb/hw/hw_stm32_otg.c

@@ -11,7 +11,7 @@
  * @brief
  * @{
  *
- * @brief       tinyUSB hardware driver for STM32 MCUs
+ * @brief       tinyUSB hardware driver for STM32 MCUs with USB OTG FS/HS ports
  * @author      Gunar Schorcht <[email protected]>
  */