add circuitpython code

1 files changed, 268 insertions, 0 deletions

diff --git a/circuitpython/lib/tinyusb/hw/bsp/stm32h7/family.c b/circuitpython/lib/tinyusb/hw/bsp/stm32h7/family.c
new file mode 100644
index 0000000..84976b4
--- /dev/null
+++ b/circuitpython/lib/tinyusb/hw/bsp/stm32h7/family.c
@@ -0,0 +1,268 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019
+ *    William D. Jones (thor0505@comcast.net),
+ *    Ha Thach (tinyusb.org)
+ *    Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de
+ *
+ * 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 "stm32h7xx_hal.h"
+#include "bsp/board.h"
+#include "board.h"
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+
+// Despite being call USB2_OTG
+// OTG_FS is marked as RHPort0 by TinyUSB to be consistent across stm32 port
+void OTG_FS_IRQHandler(void)
+{
+  tud_int_handler(0);
+}
+
+// Despite being call USB2_OTG
+// OTG_HS is marked as RHPort1 by TinyUSB to be consistent across stm32 port
+void OTG_HS_IRQHandler(void)
+{
+  tud_int_handler(1);
+}
+
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM
+//--------------------------------------------------------------------+
+
+UART_HandleTypeDef UartHandle;
+
+void board_init(void)
+{
+  board_stm32h7_clock_init();
+
+  // Enable All GPIOs clocks
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_GPIOB_CLK_ENABLE(); // USB ULPI NXT
+  __HAL_RCC_GPIOC_CLK_ENABLE(); // USB ULPI NXT
+  __HAL_RCC_GPIOD_CLK_ENABLE();
+  __HAL_RCC_GPIOE_CLK_ENABLE();
+  __HAL_RCC_GPIOE_CLK_ENABLE();
+  __HAL_RCC_GPIOG_CLK_ENABLE();
+  __HAL_RCC_GPIOH_CLK_ENABLE(); // USB ULPI NXT
+  __HAL_RCC_GPIOI_CLK_ENABLE(); // USB ULPI NXT
+  __HAL_RCC_GPIOJ_CLK_ENABLE();
+
+  // Enable UART Clock
+  UART_CLK_EN();
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+
+#elif CFG_TUSB_OS == OPT_OS_FREERTOS
+  // Explicitly disable systick to prevent its ISR runs before scheduler start
+  SysTick->CTRL &= ~1U;
+
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+  NVIC_SetPriority(OTG_FS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+  NVIC_SetPriority(OTG_HS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+#endif
+  
+  GPIO_InitTypeDef  GPIO_InitStruct;
+
+  // LED
+  GPIO_InitStruct.Pin   = LED_PIN;
+  GPIO_InitStruct.Mode  = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull  = GPIO_PULLUP;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
+
+  // Button
+  GPIO_InitStruct.Pin   = BUTTON_PIN;
+  GPIO_InitStruct.Mode  = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Pull  = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
+
+  // Uart
+  GPIO_InitStruct.Pin       = UART_TX_PIN | UART_RX_PIN;
+  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
+  GPIO_InitStruct.Pull      = GPIO_PULLUP;
+  GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_VERY_HIGH;
+  GPIO_InitStruct.Alternate = UART_GPIO_AF;
+  HAL_GPIO_Init(UART_GPIO_PORT, &GPIO_InitStruct);
+
+  UartHandle.Instance        = UART_DEV;
+  UartHandle.Init.BaudRate   = CFG_BOARD_UART_BAUDRATE;
+  UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
+  UartHandle.Init.StopBits   = UART_STOPBITS_1;
+  UartHandle.Init.Parity     = UART_PARITY_NONE;
+  UartHandle.Init.HwFlowCtl  = UART_HWCONTROL_NONE;
+  UartHandle.Init.Mode       = UART_MODE_TX_RX;
+  UartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
+  HAL_UART_Init(&UartHandle);
+
+#if BOARD_DEVICE_RHPORT_NUM == 0
+  // Despite being call USB2_OTG
+  // OTG_FS is marked as RHPort0 by TinyUSB to be consistent across stm32 port
+  // PA9 VUSB, PA10 ID, PA11 DM, PA12 DP
+
+  // Configure DM DP Pins
+  GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  // This for ID line debug
+  GPIO_InitStruct.Pin = GPIO_PIN_10;
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  // https://community.st.com/s/question/0D50X00009XkYZLSA3/stm32h7-nucleo-usb-fs-cdc
+  // TODO: Board init actually works fine without this line.
+  HAL_PWREx_EnableUSBVoltageDetector();
+  __HAL_RCC_USB2_OTG_FS_CLK_ENABLE();
+
+#if OTG_FS_VBUS_SENSE
+  // Configure VBUS Pin
+  GPIO_InitStruct.Pin = GPIO_PIN_9;
+  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  // Enable VBUS sense (B device) via pin PA9
+  USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
+#else
+  // Disable VBUS sense (B device) via pin PA9
+  USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
+
+  // B-peripheral session valid override enable
+  USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
+  USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
+#endif // vbus sense
+
+#elif BOARD_DEVICE_RHPORT_NUM == 1
+  // Despite being call USB2_OTG
+  // OTG_HS is marked as RHPort1 by TinyUSB to be consistent across stm32 port
+
+  struct {
+    GPIO_TypeDef* port;
+    uint32_t pin;
+  } const ulpi_pins[] =
+  {
+    ULPI_PINS
+  };
+
+  for (uint8_t i=0; i < sizeof(ulpi_pins)/sizeof(ulpi_pins[0]); i++)
+  {
+    GPIO_InitStruct.Pin       = ulpi_pins[i].pin;
+    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_OTG2_HS;
+    HAL_GPIO_Init(ulpi_pins[i].port, &GPIO_InitStruct);
+  }
+
+  // Enable USB HS & ULPI Clocks
+  __HAL_RCC_USB1_OTG_HS_ULPI_CLK_ENABLE();
+  __HAL_RCC_USB1_OTG_HS_CLK_ENABLE();
+
+#if OTG_HS_VBUS_SENSE
+  #error OTG HS VBUS Sense enabled is not implemented
+#else
+  // No VBUS sense
+  USB_OTG_HS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
+
+  // B-peripheral session valid override enable
+  USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
+  USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
+#endif
+
+  // Force device mode
+  USB_OTG_HS->GUSBCFG &= ~USB_OTG_GUSBCFG_FHMOD;
+  USB_OTG_HS->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD;
+
+  HAL_PWREx_EnableUSBVoltageDetector();
+
+  // For waveshare openh743 ULPI PHY reset walkaround
+  board_stm32h7_post_init();
+#endif // rhport = 1
+
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  HAL_GPIO_WritePin(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  return (BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN)) ? 1 : 0;
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  (void) buf; (void) len;
+  return 0;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  HAL_UART_Transmit(&UartHandle, (uint8_t*)(uintptr_t) buf, len, 0xffff);
+  return len;
+}
+
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler(void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
+
+void HardFault_Handler(void)
+{
+  asm("bkpt");
+}
+
+// Required by __libc_init_array in startup code if we are compiling using
+// -nostdlib/-nostartfiles.
+void _init(void)
+{
+
+}