diff options
Diffstat (limited to 'tinyusb/hw/bsp/gd32vf103/family.c')
| -rwxr-xr-x | tinyusb/hw/bsp/gd32vf103/family.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/gd32vf103/family.c b/tinyusb/hw/bsp/gd32vf103/family.c new file mode 100755 index 00000000..d76fb9a2 --- /dev/null +++ b/tinyusb/hw/bsp/gd32vf103/family.c @@ -0,0 +1,197 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 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. + */ + +#include "board.h" +#include "drv_usb_hw.h" +#include "drv_usb_dev.h" + +#include "../board.h" + +//--------------------------------------------------------------------+ +// Forward USB interrupt events to TinyUSB IRQ Handler +//--------------------------------------------------------------------+ + +void USBFS_IRQHandler(void) { tud_int_handler(0); } + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM +//--------------------------------------------------------------------+ + +#define USB_NO_VBUS_PIN + +// According to GD32VF103 user manual clock tree: +// Systick clock = AHB clock / 4. +#define TIMER_TICKS ((SystemCoreClock / 4) / 1000) + +#define BUTTON_PORT GPIOA +#define BUTTON_PIN GPIO_PIN_0 +#define BUTTON_STATE_ACTIVE 1 + +#define UART_DEV SOC_DEBUG_UART + +#define LED_PIN LED_R + +void board_init(void) { + /* Disable interrupts during init */ + __disable_irq(); + +#if CFG_TUSB_OS == OPT_OS_NONE + SysTick_Config(TIMER_TICKS); +#endif + + rcu_periph_clock_enable(RCU_GPIOA); + rcu_periph_clock_enable(RCU_GPIOB); + rcu_periph_clock_enable(RCU_GPIOC); + rcu_periph_clock_enable(RCU_GPIOD); + rcu_periph_clock_enable(RCU_AF); + +#ifdef BUTTON_PIN + gpio_init(BUTTON_PORT, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, BUTTON_PIN); +#endif + +#ifdef LED_PIN + gd_led_init(LED_PIN); +#endif + +#if defined(UART_DEV) + gd_com_init(UART_DEV); +#endif + + /* USB D+ and D- pins don't need to be configured. */ + /* Configure VBUS Pin */ +#ifndef USB_NO_VBUS_PIN + gpio_init(GPIOA, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, GPIO_PIN_9); +#endif + + /* This for ID line debug */ + // gpio_init(GPIOA, GPIO_MODE_AF_OD, GPIO_OSPEED_50MHZ, GPIO_PIN_10); + + /* Enable USB OTG clock */ + usb_rcu_config(); + + /* Reset USB OTG peripheral */ + rcu_periph_reset_enable(RCU_USBFSRST); + rcu_periph_reset_disable(RCU_USBFSRST); + + /* Configure USBFS IRQ */ + ECLIC_Register_IRQ(USBFS_IRQn, ECLIC_NON_VECTOR_INTERRUPT, + ECLIC_POSTIVE_EDGE_TRIGGER, 3, 0, NULL); + + /* Retrieve otg core registers */ + usb_gr* otg_core_regs = (usb_gr*)(USBFS_REG_BASE + USB_REG_OFFSET_CORE); + +#ifdef USB_NO_VBUS_PIN + /* Disable VBUS sense*/ + otg_core_regs->GCCFG |= GCCFG_VBUSIG | GCCFG_PWRON | GCCFG_VBUSBCEN; +#else + /* Enable VBUS sense via pin PA9 */ + otg_core_regs->GCCFG |= GCCFG_VBUSIG | GCCFG_PWRON | GCCFG_VBUSBCEN; + otg_core_regs->GCCFG &= ~GCCFG_VBUSIG; +#endif + + /* Enable interrupts globaly */ + __enable_irq(); +} + +void gd32vf103_reset(void) { + /* The MTIMER unit of the GD32VF103 doesn't have the MSFRST + * register to generate a software reset request. + * BUT instead two undocumented registers in the debug peripheral + * that allow issueing a software reset. + * https://github.com/esmil/gd32vf103inator/blob/master/include/gd32vf103/dbg.h + */ + DBG_KEY = DBG_KEY_UNLOCK; + DBG_CMD = DBG_CMD_RESET; +} + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void board_led_write(bool state) { + state ? gd_led_on(LED_PIN) : gd_led_off(LED_PIN); +} + +uint32_t board_button_read(void) { + return BUTTON_STATE_ACTIVE == gpio_input_bit_get(BUTTON_PORT, BUTTON_PIN); +} + +int board_uart_read(uint8_t* buf, int len) { +#if defined(UART_DEV) + int rxsize = len; + while (rxsize--) { + *(uint8_t*)buf = usart_read(UART_DEV); + buf++; + } + return len; +#else + (void)buf; + (void)len; + return 0; +#endif +} + +int board_uart_write(void const* buf, int len) { +#if defined(UART_DEV) + int txsize = len; + while (txsize--) { + usart_write(UART_DEV, *(uint8_t*)buf); + buf++; + } + return len; +#else + (void)buf; + (void)len; + return 0; +#endif +} + +#if CFG_TUSB_OS == OPT_OS_NONE +volatile uint32_t system_ticks = 0; +void eclic_mtip_handler(void) { + system_ticks++; + SysTick_Reload(TIMER_TICKS); +} +uint32_t board_millis(void) { return system_ticks; } +#endif + +#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 */ |