2021-07-10 11:17:24 +02:00
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/*
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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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2021-08-15 12:19:25 +02:00
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#include "board.h"
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#include "drv_usb_hw.h"
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#include "drv_usb_dev.h"
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2023-08-03 10:44:05 +02:00
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#include "../board_api.h"
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2021-07-10 11:17:24 +02:00
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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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2021-07-10 11:47:42 +02:00
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#define USB_NO_VBUS_PIN
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2021-07-10 11:17:24 +02:00
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2021-08-09 21:36:50 +02:00
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// According to GD32VF103 user manual clock tree:
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// Systick clock = AHB clock / 4.
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2023-03-17 10:12:49 +01:00
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#define TIMER_TICKS ((SystemCoreClock / 4) / 1000)
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2021-07-10 11:17:24 +02:00
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2021-08-07 14:08:18 +02:00
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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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2021-07-10 11:17:24 +02:00
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2021-08-07 14:08:18 +02:00
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#define UART_DEV SOC_DEBUG_UART
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2021-08-07 11:31:03 +02:00
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2021-08-07 14:08:18 +02:00
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#define LED_PIN LED_R
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2021-07-10 11:17:24 +02:00
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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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#if CFG_TUSB_OS == OPT_OS_NONE
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2021-08-07 11:24:40 +02:00
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SysTick_Config(TIMER_TICKS);
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2021-07-10 11:17:24 +02:00
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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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2021-08-07 10:08:42 +02:00
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gd_led_init(LED_PIN);
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2021-07-10 11:17:24 +02:00
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#endif
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2021-07-10 11:47:42 +02:00
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#if defined(UART_DEV)
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2021-08-07 10:08:42 +02:00
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gd_com_init(UART_DEV);
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2021-07-10 11:17:24 +02:00
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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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2021-08-07 11:25:28 +02:00
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/* Configure USBFS IRQ */
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ECLIC_Register_IRQ(USBFS_IRQn, ECLIC_NON_VECTOR_INTERRUPT,
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ECLIC_POSTIVE_EDGE_TRIGGER, 3, 0, NULL);
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2021-07-10 11:17:24 +02:00
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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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2022-12-04 12:51:52 +01:00
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/* Enable interrupts globally */
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2021-07-10 11:17:24 +02:00
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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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2022-12-04 07:58:47 +01:00
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* that allow issuing a software reset.
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2021-07-10 11:17:24 +02:00
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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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2021-08-07 11:31:03 +02:00
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state ? gd_led_on(LED_PIN) : gd_led_off(LED_PIN);
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2021-07-10 11:17:24 +02:00
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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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2021-07-10 11:47:42 +02:00
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#if defined(UART_DEV)
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2021-07-10 11:17:24 +02:00
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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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2021-07-10 11:47:42 +02:00
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#if defined(UART_DEV)
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2021-07-10 11:17:24 +02:00
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int txsize = len;
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while (txsize--) {
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2021-10-17 11:26:27 +02:00
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usart_write(UART_DEV, *(uint8_t const*)buf);
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2021-07-10 11:17:24 +02:00
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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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2021-08-07 11:24:40 +02:00
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void eclic_mtip_handler(void) {
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system_ticks++;
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SysTick_Reload(TIMER_TICKS);
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}
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2021-07-10 11:17:24 +02:00
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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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