216 lines
6.0 KiB
C
216 lines
6.0 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "../board.h"
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#include "nuclei_sdk_hal.h"
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//--------------------------------------------------------------------+
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// Forward USB interrupt events to TinyUSB IRQ Handler
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//--------------------------------------------------------------------+
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void USBFS_IRQHandler(void) { tud_int_handler(0); }
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM
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//--------------------------------------------------------------------+
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#define USB_NO_VBUS_PIN
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#define BUTTON_PORT GPIOA
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#define BUTTON_PIN GPIO_PIN_0
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#define BUTTON_STATE_ACTIVE 1
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#define UART_DEV SOC_DEBUG_UART
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#define LED_PIN LED_R
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void board_init(void) {
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/* Disable interrupts during init */
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__disable_irq();
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ECLIC_Init();
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/* Reset eclic interrupt registers */
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for (int32_t i = 0; i < SOC_INT_MAX; i++) {
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ECLIC->CTRL[0].INTIP = 0;
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ECLIC->CTRL[0].INTIE = 0;
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ECLIC->CTRL[0].INTATTR = 0;
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ECLIC->CTRL[0].INTCTRL = 0;
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}
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/* Set 4 bits for interrupt level and 0 bits for priority */
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__ECLIC_SetCfgNlbits(4);
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SystemCoreClockUpdate();
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#if CFG_TUSB_OS == OPT_OS_NONE
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SysTimer_SetLoadValue(0);
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SysTimer_SetCompareValue(SystemCoreClock / 1000);
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ECLIC_SetLevelIRQ(SysTimer_IRQn, 3);
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ECLIC_SetTrigIRQ(SysTimer_IRQn, ECLIC_POSTIVE_EDGE_TRIGGER);
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ECLIC_EnableIRQ(SysTimer_IRQn);
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SysTimer_Start();
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#endif
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rcu_periph_clock_enable(RCU_GPIOA);
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rcu_periph_clock_enable(RCU_GPIOB);
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rcu_periph_clock_enable(RCU_GPIOC);
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rcu_periph_clock_enable(RCU_GPIOD);
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rcu_periph_clock_enable(RCU_AF);
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#ifdef BUTTON_PIN
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gpio_init(BUTTON_PORT, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, BUTTON_PIN);
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#endif
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#ifdef LED_PIN
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gd_led_init(LED_PIN);
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#endif
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#if defined(UART_DEV)
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gd_com_init(UART_DEV);
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#endif
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/* USB D+ and D- pins don't need to be configured. */
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/* Configure VBUS Pin */
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#ifndef USB_NO_VBUS_PIN
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gpio_init(GPIOA, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, GPIO_PIN_9);
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#endif
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/* This for ID line debug */
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// gpio_init(GPIOA, GPIO_MODE_AF_OD, GPIO_OSPEED_50MHZ, GPIO_PIN_10);
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/* Enable USB OTG clock */
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usb_rcu_config();
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/* Reset USB OTG peripheral */
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rcu_periph_reset_enable(RCU_USBFSRST);
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rcu_periph_reset_disable(RCU_USBFSRST);
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/* Set IRQ priority and trigger */
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ECLIC_SetLevelIRQ(USBFS_IRQn, 3);
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ECLIC_SetTrigIRQ(USBFS_IRQn, ECLIC_POSTIVE_EDGE_TRIGGER);
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/* Retrieve otg core registers */
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usb_gr* otg_core_regs = (usb_gr*)(USBFS_REG_BASE + USB_REG_OFFSET_CORE);
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#ifdef USB_NO_VBUS_PIN
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/* Disable VBUS sense*/
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otg_core_regs->GCCFG |= GCCFG_VBUSIG | GCCFG_PWRON | GCCFG_VBUSBCEN;
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#else
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/* Enable VBUS sense via pin PA9 */
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otg_core_regs->GCCFG |= GCCFG_VBUSIG | GCCFG_PWRON | GCCFG_VBUSBCEN;
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otg_core_regs->GCCFG &= ~GCCFG_VBUSIG;
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#endif
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/* Enable interrupts globaly */
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__enable_irq();
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}
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void gd32vf103_reset(void) {
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/* The MTIMER unit of the GD32VF103 doesn't have the MSFRST
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* register to generate a software reset request.
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* BUT instead two undocumented registers in the debug peripheral
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* that allow issueing a software reset.
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* https://github.com/esmil/gd32vf103inator/blob/master/include/gd32vf103/dbg.h
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*/
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DBG_KEY = DBG_KEY_UNLOCK;
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DBG_CMD = DBG_CMD_RESET;
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state) {
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if (state) {
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gd_led_on(LED_PIN);
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} else {
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gd_led_off(LED_PIN);
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}
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}
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uint32_t board_button_read(void) {
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return BUTTON_STATE_ACTIVE == gpio_input_bit_get(BUTTON_PORT, BUTTON_PIN);
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}
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int board_uart_read(uint8_t* buf, int len) {
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#if defined(UART_DEV)
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int rxsize = len;
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while (rxsize--) {
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*(uint8_t*)buf = usart_read(UART_DEV);
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buf++;
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}
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return len;
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#else
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(void)buf;
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(void)len;
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return 0;
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#endif
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}
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int board_uart_write(void const* buf, int len) {
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#if defined(UART_DEV)
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int txsize = len;
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while (txsize--) {
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usart_write(UART_DEV, *(uint8_t*)buf);
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buf++;
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}
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return len;
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#else
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(void)buf;
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(void)len;
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return 0;
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#endif
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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void eclic_mtip_handler(void) { system_ticks++; }
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uint32_t board_millis(void) { return system_ticks; }
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#endif
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(char* file, uint32_t line) {
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/* USER CODE BEGIN 6 */
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/* User can add his own implementation to report the file name and line
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number,
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tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line)
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*/
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/* USER CODE END 6 */
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}
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#endif /* USE_FULL_ASSERT */
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// Required by __libc_init_array in startup code if we are compiling using
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// -nostdlib/-nostartfiles.
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// void _init(void) {}
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