Squashed 'third_party/pico-sdk/lib/tinyusb/' content from commit 868948f67c

Change-Id: I5d33c2566dd597be9d4b1c30d4b3723c5ef4a265
git-subtree-dir: third_party/pico-sdk/lib/tinyusb
git-subtree-split: 868948f67c90fa7c2553cdcd604b52862cf55720
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/hw/bsp/stm32f4/boards/stm32f412disco/board.h b/hw/bsp/stm32f4/boards/stm32f412disco/board.h
new file mode 100644
index 0000000..7f4a4fa
--- /dev/null
+++ b/hw/bsp/stm32f4/boards/stm32f412disco/board.h
@@ -0,0 +1,118 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020, 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.
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+// LED
+#define LED_PORT              GPIOE
+#define LED_PIN               GPIO_PIN_2
+#define LED_STATE_ON          0
+
+// Button
+#define BUTTON_PORT           GPIOA
+#define BUTTON_PIN            GPIO_PIN_0
+#define BUTTON_STATE_ACTIVE   1
+
+// UART Enable PA2 as the debug log UART
+#define UART_DEV              USART2
+#define UART_GPIO_PORT        GPIOA
+#define UART_GPIO_AF          GPIO_AF7_USART2
+#define UART_TX_PIN           GPIO_PIN_2
+#define UART_RX_PIN           GPIO_PIN_3
+
+//--------------------------------------------------------------------+
+// RCC Clock
+//--------------------------------------------------------------------+
+static inline void board_clock_init(void)
+{
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
+
+  /* Enable Power Control clock */
+  __HAL_RCC_PWR_CLK_ENABLE();
+
+  /* The voltage scaling allows optimizing the power consumption when the
+   * device is clocked below the maximum system frequency, to update the
+   * voltage scaling value regarding system frequency refer to product
+   * datasheet.  */
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+
+  /* Enable HSE Oscillator and activate PLL with HSE as source */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM = HSE_VALUE/1000000;
+  RCC_OscInitStruct.PLL.PLLN = 200;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = 7;
+  RCC_OscInitStruct.PLL.PLLR = 2;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  /* Select PLLSAI output as USB clock source */
+  PeriphClkInitStruct.PLLI2S.PLLI2SM = 8;
+  PeriphClkInitStruct.PLLI2S.PLLI2SQ = 4;
+  PeriphClkInitStruct.PLLI2S.PLLI2SN = 192;
+  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_CK48;
+  PeriphClkInitStruct.Clk48ClockSelection = RCC_CK48CLKSOURCE_PLLI2SQ;
+  PeriphClkInitStruct.PLLI2SSelection = RCC_PLLI2SCLKSOURCE_PLLSRC;
+  PeriphClkInitStruct.PLLI2S.PLLI2SR = 7;
+  HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
+
+  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
+   * clocks dividers */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK |
+                                RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
+
+  // Enable clocks for LED, Button, Uart
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_GPIOE_CLK_ENABLE();
+  __HAL_RCC_USART2_CLK_ENABLE();
+}
+
+static inline void board_vbus_sense_init(void)
+{
+  // Enable VBUS sense (B device) via pin PA9
+  USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
+}
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* BOARD_H_ */