147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Jerzy Kasenberg
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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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/* metadata:
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manufacturer: Renesas
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*/
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#include "bsp/board_api.h"
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#include "board.h"
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#include <hal/hal_gpio.h>
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#include <mcu/mcu.h>
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#define LED_STATE_OFF (1-LED_STATE_ON)
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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 USB_IRQHandler(void) {
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tud_int_handler(0);
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}
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// DA146xx driver function that must be called whenever VBUS changes.
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extern void tusb_vbus_changed(bool present);
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#if defined(NEED_VBUS_MONITOR) && CFG_TUD_ENABLED
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// VBUS change interrupt handler
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void VBUS_IRQHandler(void) {
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bool present = (CRG_TOP->ANA_STATUS_REG & CRG_TOP_ANA_STATUS_REG_VBUS_AVAILABLE_Msk) != 0;
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// Clear VBUS interrupt
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CRG_TOP->VBUS_IRQ_CLEAR_REG = 1;
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tusb_vbus_changed(present);
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}
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#endif
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM
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//--------------------------------------------------------------------+
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void UnhandledIRQ(void) {
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CRG_TOP->SYS_CTRL_REG = 0x80;
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__BKPT(1);
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while (1);
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}
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void board_init(void) {
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// LED
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hal_gpio_init_out(LED_PIN, LED_STATE_ON);
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hal_gpio_init_out(1, 0);
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hal_gpio_init_out(2, 0);
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hal_gpio_init_out(3, 0);
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hal_gpio_init_out(4, 0);
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hal_gpio_init_out(5, 0);
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// Button
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hal_gpio_init_in(BUTTON_PIN, BUTTON_STATE_ACTIVE ? HAL_GPIO_PULL_DOWN : HAL_GPIO_PULL_UP);
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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#if CFG_TUD_ENABLED
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#ifdef NEED_VBUS_MONITOR
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// Setup interrupt for both connect and disconnect
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CRG_TOP->VBUS_IRQ_MASK_REG = CRG_TOP_VBUS_IRQ_MASK_REG_VBUS_IRQ_EN_FALL_Msk |
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CRG_TOP_VBUS_IRQ_MASK_REG_VBUS_IRQ_EN_RISE_Msk;
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NVIC_SetPriority(VBUS_IRQn, 2);
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// Trigger interrupt at the start to inform driver about VBUS state at start
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// otherwise it could go unnoticed.
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NVIC_SetPendingIRQ(VBUS_IRQn);
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NVIC_EnableIRQ(VBUS_IRQn);
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#else
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// This board is USB powered there is no need to monitor VBUS line. Notify driver that VBUS is present.
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tusb_vbus_changed(true);
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#endif
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/* Setup USB IRQ */
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NVIC_SetPriority(USB_IRQn, 2);
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NVIC_EnableIRQ(USB_IRQn);
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/* Use PLL96 / 2 clock not HCLK */
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CRG_TOP->CLK_CTRL_REG &= ~CRG_TOP_CLK_CTRL_REG_USB_CLK_SRC_Msk;
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mcu_gpio_set_pin_function(14, MCU_GPIO_MODE_INPUT, MCU_GPIO_FUNC_USB);
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mcu_gpio_set_pin_function(15, MCU_GPIO_MODE_INPUT, MCU_GPIO_FUNC_USB);
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#endif
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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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hal_gpio_write(LED_PIN, state ? LED_STATE_ON : LED_STATE_OFF);
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}
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uint32_t board_button_read(void) {
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return BUTTON_STATE_ACTIVE == hal_gpio_read(BUTTON_PIN);
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}
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int board_uart_read(uint8_t* buf, int len) {
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(void) buf;
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(void) len;
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return 0;
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}
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int board_uart_write(void const* buf, int len) {
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(void) buf;
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(void) len;
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return 0;
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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 SysTick_Handler(void) {
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system_ticks++;
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}
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uint32_t board_millis(void) {
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return system_ticks;
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}
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#endif
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