Add nanoch32v305

hw/bsp/ch32v30x/family.c

@@ -0,0 +1,200 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2022 Greg Davill
+ *
+ * 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.
+ */
+
+/* metadata:
+   manufacturer: WCH
+*/
+
+#include "stdio.h"
+
+// https://github.com/openwch/ch32v307/pull/90
+// https://github.com/openwch/ch32v20x/pull/12
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#endif
+
+#include "debug_uart.h"
+#include "ch32v30x.h"
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+#include "bsp/board_api.h"
+#include "board.h"
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+
+// TODO maybe having FS as port0, HS as port1
+
+__attribute__((interrupt)) void USBHS_IRQHandler(void) {
+  #if CFG_TUD_WCH_USBIP_USBHS
+  tud_int_handler(0);
+  #endif
+}
+
+__attribute__((interrupt)) void OTG_FS_IRQHandler(void) {
+  #if CFG_TUD_WCH_USBIP_USBFS
+  tud_int_handler(0);
+  #endif
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM
+//--------------------------------------------------------------------+
+
+uint32_t SysTick_Config(uint32_t ticks) {
+  NVIC_EnableIRQ(SysTicK_IRQn);
+  SysTick->CTLR = 0;
+  SysTick->SR = 0;
+  SysTick->CNT = 0;
+  SysTick->CMP = ticks - 1;
+  SysTick->CTLR = 0xF;
+  return 0;
+}
+
+void board_init(void) {
+
+  /* Disable interrupts during init */
+  __disable_irq();
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  SysTick_Config(SystemCoreClock / 1000);
+#endif
+
+  usart_printf_init(CFG_BOARD_UART_BAUDRATE);
+
+#ifdef CH32V30x_D8C
+  // v305/v307: Highspeed USB
+  RCC_USBCLK48MConfig(RCC_USBCLK48MCLKSource_USBPHY);
+  RCC_USBHSPLLCLKConfig(RCC_HSBHSPLLCLKSource_HSE);
+  RCC_USBHSConfig(RCC_USBPLL_Div2);
+  RCC_USBHSPLLCKREFCLKConfig(RCC_USBHSPLLCKREFCLK_4M);
+  RCC_USBHSPHYPLLALIVEcmd(ENABLE);
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_USBHS, ENABLE);
+#endif
+
+  // Fullspeed USB
+  uint8_t otg_div;
+  switch (SystemCoreClock) {
+    case 48000000:  otg_div = RCC_OTGFSCLKSource_PLLCLK_Div1; break;
+    case 96000000:  otg_div = RCC_OTGFSCLKSource_PLLCLK_Div2; break;
+    case 144000000: otg_div = RCC_OTGFSCLKSource_PLLCLK_Div3; break;
+    default: TU_ASSERT(0,); break;
+  }
+  RCC_OTGFSCLKConfig(otg_div);
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE);
+
+  GPIO_InitTypeDef GPIO_InitStructure = {0};
+
+  // LED
+  LED_CLOCK_EN();
+  GPIO_InitStructure.GPIO_Pin = LED_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_Init(LED_PORT, &GPIO_InitStructure);
+
+  // Button
+#ifdef BUTTON_PORT
+  BUTTON_CLOCK_EN();
+  GPIO_InitStructure.GPIO_Pin = BUTTON_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_Init(BUTTON_PORT, &GPIO_InitStructure);
+#endif
+  /* Enable interrupts globally */
+  __enable_irq();
+
+  board_delay(2);
+}
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+
+__attribute__((interrupt)) void SysTick_Handler(void) {
+  SysTick->SR = 0;
+  system_ticks++;
+}
+
+uint32_t board_millis(void) {
+  return system_ticks;
+}
+
+#endif
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state) {
+  GPIO_WriteBit(LED_PORT, LED_PIN, state);
+}
+
+uint32_t board_button_read(void) {
+#ifdef BUTTON_PORT
+  return BUTTON_STATE_ACTIVE == GPIO_ReadInputDataBit(BUTTON_PORT, BUTTON_PIN);
+#else
+  return false;
+#endif
+}
+
+int board_uart_read(uint8_t* buf, int len) {
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+int board_uart_write(void const* buf, int len) {
+  int txsize = len;
+  const char* bufc = (const char*) buf;
+  while (txsize--) {
+    uart_write(*bufc++);
+  }
+  uart_sync();
+  return len;
+}
+
+#ifdef USE_FULL_ASSERT
+/**
+ * @brief  Reports the name of the source file and the source line number
+ *         where the assert_param error has occurred.
+ * @param  file: pointer to the source file name
+ * @param  line: assert_param error line source number
+ * @retval None
+ */
+void assert_failed(char* file, uint32_t line) {
+  /* USER CODE BEGIN 6 */
+  /* User can add his own implementation to report the file name and line
+     number,
+     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line)
+   */
+  /* USER CODE END 6 */
+}
+#endif /* USE_FULL_ASSERT */