257 lines
7.3 KiB
C
257 lines
7.3 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright 2021 Bridgetek Pte Ltd
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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 "bsp/board_api.h"
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#include "board.h"
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#include <ft900.h>
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#include <registers/ft900_registers.h>
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#if CFG_TUD_ENABLED
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int8_t board_ft9xx_vbus(void); // Board specific implementation of VBUS detection for USB device.
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extern void ft9xx_usbd_pm_ISR(uint16_t pmcfg); // Interrupt handler for USB device power management
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#endif
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#ifdef BOARD_GPIO_REMOTE_WAKEUP
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void gpio_ISR(void);
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#endif
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void timer_ISR(void);
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volatile unsigned int timer_ms = 0;
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void board_pm_ISR(void);
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#define WELCOME_MSG "\x1B[2J\x1B[H" \
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"MM900EVxB board\r\n"
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// Initialize on-board peripherals : led, button, uart and USB
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void board_init(void)
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{
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sys_reset_all();
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// Enable the UART Device.
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sys_enable(sys_device_uart0);
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// Set BOARD_UART GPIO function pins for TXD and RXD.
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#ifdef BOARD_GPIO_UART_TX
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gpio_function(BOARD_GPIO_UART_TX, pad_uart0_txd); /* UART0 TXD */
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#endif
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#ifdef BOARD_GPIO_UART_RX
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gpio_function(BOARD_GPIO_UART_RX, pad_uart0_rxd); /* UART0 RXD */
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#endif
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uart_open(BOARD_UART, /* Device */
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1, /* Prescaler = 1 */
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UART_DIVIDER_19200_BAUD, /* Divider = 1302 */
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uart_data_bits_8, /* No. Data Bits */
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uart_parity_none, /* Parity */
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uart_stop_bits_1); /* No. Stop Bits */
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// Print out a welcome message.
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// Use sizeof to avoid pulling in strlen unnecessarily.
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board_uart_write(WELCOME_MSG, sizeof(WELCOME_MSG));
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#ifdef BOARD_GPIO_LED
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gpio_function(BOARD_GPIO_LED, pad_func_0);
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gpio_idrive(BOARD_GPIO_LED, pad_drive_12mA);
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gpio_dir(BOARD_GPIO_LED, pad_dir_output);
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#endif
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#ifdef BOARD_GPIO_BUTTON
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gpio_function(BOARD_GPIO_BUTTON, pad_func_0);
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// Pull up if active low. Down if active high.
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gpio_pull(BOARD_GPIO_BUTTON, (BOARD_GPIO_BUTTON_STATE_ACTIVE == 0)?pad_pull_pullup:pad_pull_pulldown);
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gpio_dir(BOARD_GPIO_BUTTON, pad_dir_input);
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#endif
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sys_enable(sys_device_timer_wdt);
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/* Timer A = 1ms */
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timer_prescaler(timer_select_a, 1000);
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timer_init(timer_select_a, 100, timer_direction_down, timer_prescaler_select_on, timer_mode_continuous);
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timer_enable_interrupt(timer_select_a);
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timer_start(timer_select_a);
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interrupt_attach(interrupt_timers, (int8_t)interrupt_timers, timer_ISR);
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// Setup VBUS detect GPIO. If the device is connected then this
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// will set the MASK_SYS_PMCFG_DEV_DETECT_EN bit in PMCFG.
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gpio_interrupt_disable(BOARD_USBD_VBUS_DTC_PIN);
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gpio_function(BOARD_USBD_VBUS_DTC_PIN, pad_vbus_dtc);
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gpio_pull(BOARD_USBD_VBUS_DTC_PIN, pad_pull_pulldown);
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gpio_dir(BOARD_USBD_VBUS_DTC_PIN, pad_dir_input);
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interrupt_attach(interrupt_0, (int8_t)interrupt_0, board_pm_ISR);
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#ifdef BOARD_GPIO_REMOTE_WAKEUP
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// Configuring GPIO pin to wakeup.
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// Set up the wakeup pin.
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gpio_dir(BOARD_GPIO_REMOTE_WAKEUP, pad_dir_input);
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gpio_pull(BOARD_GPIO_REMOTE_WAKEUP, pad_pull_pullup);
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// Attach an interrupt handler.
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interrupt_attach(interrupt_gpio, (uint8_t)interrupt_gpio, gpio_ISR);
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gpio_interrupt_enable(BOARD_GPIO_REMOTE_WAKEUP, gpio_int_edge_falling);
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#endif
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uart_disable_interrupt(BOARD_UART, uart_interrupt_tx);
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uart_disable_interrupt(BOARD_UART, uart_interrupt_rx);
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// Enable all peripheral interrupts.
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interrupt_enable_globally();
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TU_LOG1("MM900EV1B board setup complete\r\n");
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};
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void timer_ISR(void)
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{
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if (timer_is_interrupted(timer_select_a))
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{
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timer_ms++;
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}
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}
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#ifdef BOARD_GPIO_REMOTE_WAKEUP
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void gpio_ISR(void)
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{
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if (gpio_is_interrupted(BOARD_GPIO_REMOTE_WAKEUP))
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{
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}
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}
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#endif
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/* Power management ISR */
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void board_pm_ISR(void)
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{
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uint16_t pmcfg = SYS->PMCFG_H;
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#if defined(__FT930__)
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if (pmcfg & MASK_SYS_PMCFG_SLAVE_PERI_IRQ_PEND)
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{
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// Clear d2xx hw engine wakeup.
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SYS->PMCFG_H = MASK_SYS_PMCFG_SLAVE_PERI_IRQ_PEND;
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}
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#endif
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if (pmcfg & MASK_SYS_PMCFG_PM_GPIO_IRQ_PEND)
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{
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// Clear GPIO wakeup pending.
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SYS->PMCFG_H = MASK_SYS_PMCFG_PM_GPIO_IRQ_PEND;
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}
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#if defined(__FT900__)
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// USB device power management interrupts.
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if (pmcfg & (MASK_SYS_PMCFG_DEV_CONN_DEV |
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MASK_SYS_PMCFG_DEV_DIS_DEV |
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MASK_SYS_PMCFG_HOST_RST_DEV |
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MASK_SYS_PMCFG_HOST_RESUME_DEV)
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)
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{
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#if CFG_TUD_ENABLED
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ft9xx_usbd_pm_ISR(pmcfg);
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#endif
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}
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#endif
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}
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#if CFG_TUD_ENABLED
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int8_t board_ft9xx_vbus(void)
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{
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return gpio_read(BOARD_USBD_VBUS_DTC_PIN);
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}
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#endif
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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// Turn LED on or off
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void board_led_write(bool state)
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{
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#ifdef BOARD_GPIO_LED
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gpio_write(BOARD_GPIO_LED, (state == 0)?(BOARD_GPIO_LED_STATE_ON?0:1):BOARD_GPIO_LED_STATE_ON);
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#endif
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}
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// Get the current state of button
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// a '1' means active (pressed), a '0' means inactive.
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uint32_t board_button_read(void)
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{
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uint32_t state = 0;
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#ifdef BOARD_GPIO_BUTTON
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state = (gpio_read(BOARD_GPIO_BUTTON) == BOARD_GPIO_BUTTON_STATE_ACTIVE)?1:0;
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#endif
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return state;
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}
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// Get characters from UART
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int board_uart_read(uint8_t *buf, int len)
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{
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int r = 0;
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#ifdef BOARD_UART
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if (uart_rx_has_data(BOARD_UART))
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{
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r = uart_readn(BOARD_UART, (uint8_t *)buf, len);
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}
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#endif
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return r;
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}
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// Send characters to UART
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int board_uart_write(void const *buf, int len)
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{
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int r = 0;
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#ifdef BOARD_UART
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wcast-qual" // uart_writen does not have const for buffer parameter.
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r = uart_writen(BOARD_UART, (uint8_t *)((const void *)buf), len);
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#pragma GCC diagnostic pop
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#endif
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return r;
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}
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// Get current milliseconds
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uint32_t board_millis(void)
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{
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uint32_t safe_ms;
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CRITICAL_SECTION_BEGIN
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safe_ms = timer_ms;
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CRITICAL_SECTION_END
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return safe_ms;
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}
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// Restart the program
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// Called in the event of a watchdog timeout
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void chip_reboot(void)
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{
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// SOFT reset
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__asm__("call 0");
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#if 0
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// HARD reset
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// Initiates data transfer from Flash Memory to Data Memory (DBG_CMDF2D3)
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// followed by a system reboot
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dbg_memory_copy(0xfe, 0, 0, 255);
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#endif
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}
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