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/*
* The MIT License (MIT)
*
* Copyright 2021 Bridgetek Pte Ltd
*
* 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 "bsp/board.h"
#include "board.h"
#include <registers/ft900_registers.h>
#include <ft900.h>
#if CFG_TUD_ENABLED
int8_t board_ft90x_vbus(void); // Board specific implementation of VBUS detection for USB device.
extern void ft90x_usbd_pm_ISR(uint16_t pmcfg); // Interrupt handler for USB device power management
#endif
#ifdef GPIO_REMOTE_WAKEUP
void gpio_ISR(void);
#endif
void timer_ISR(void);
volatile unsigned int timer_ms = 0;
void board_pm_ISR(void);
#define WELCOME_MSG "\x1B[2J\x1B[H" \
"MM900EVxB board\r\n"
// Initialize on-board peripherals : led, button, uart and USB
void board_init(void)
{
sys_reset_all();
// Enable the UART Device.
sys_enable(sys_device_uart0);
// Set UART0 GPIO functions to UART0_TXD and UART0_RXD.
gpio_function(GPIO_UART0_TX, pad_uart0_txd); /* UART0 TXD */
gpio_function(GPIO_UART0_RX, pad_uart0_rxd); /* UART0 RXD */
uart_open(UART0, /* Device */
1, /* Prescaler = 1 */
UART_DIVIDER_19200_BAUD, /* Divider = 1302 */
uart_data_bits_8, /* No. Data Bits */
uart_parity_none, /* Parity */
uart_stop_bits_1); /* No. Stop Bits */
// Print out a welcome message.
// Use sizeof to avoid pulling in strlen unnecessarily.
board_uart_write(WELCOME_MSG, sizeof(WELCOME_MSG));
#if 0
// Ethernet LEDs
gpio_function(GPIO_ETH_LED0, pad_gpio4); /* ETH LED0 */
gpio_dir(GPIO_ETH_LED0, pad_dir_open_drain);
gpio_function(GPIO_ETH_LED1, pad_gpio5); /* ETH LED1 */
gpio_dir(GPIO_ETH_LED1, pad_dir_output);
#endif
sys_enable(sys_device_timer_wdt);
/* Timer A = 1ms */
timer_prescaler(timer_select_a, 1000);
timer_init(timer_select_a, 100, timer_direction_down, timer_prescaler_select_on, timer_mode_continuous);
timer_enable_interrupt(timer_select_a);
timer_start(timer_select_a);
interrupt_attach(interrupt_timers, (int8_t)interrupt_timers, timer_ISR);
// Setup VBUS detect GPIO. If the device is connected then this
// will set the MASK_SYS_PMCFG_DEV_DETECT_EN bit in PMCFG.
gpio_interrupt_disable(USBD_VBUS_DTC_PIN);
gpio_function(USBD_VBUS_DTC_PIN, pad_vbus_dtc);
gpio_pull(USBD_VBUS_DTC_PIN, pad_pull_pulldown);
gpio_dir(USBD_VBUS_DTC_PIN, pad_dir_input);
interrupt_attach(interrupt_0, (int8_t)interrupt_0, board_pm_ISR);
#ifdef GPIO_REMOTE_WAKEUP
//Configuring GPIO pin to wakeup.
// Set up the wakeup pin.
gpio_dir(GPIO_REMOTE_WAKEUP_PIN, pad_dir_input);
gpio_pull(GPIO_REMOTE_WAKEUP_PIN, pad_pull_pullup);
// Attach an interrupt handler.
interrupt_attach(interrupt_gpio, (uint8_t)interrupt_gpio, gpio_ISR);
gpio_interrupt_enable(GPIO_REMOTE_WAKEUP_PIN, gpio_int_edge_falling);
#endif
uart_disable_interrupt(UART0, uart_interrupt_tx);
uart_disable_interrupt(UART0, uart_interrupt_rx);
// Enable all peripheral interrupts.
interrupt_enable_globally();
TU_LOG1("MM900EV1B board setup complete\r\n");
};
void timer_ISR(void)
{
if (timer_is_interrupted(timer_select_a))
{
timer_ms++;
}
}
#ifdef GPIO_REMOTE_WAKEUP
void gpio_ISR(void)
{
if (gpio_is_interrupted(GPIO_REMOTE_WAKEUP_PIN))
{
}
}
#endif
/* Power management ISR */
void board_pm_ISR(void)
{
uint16_t pmcfg = SYS->PMCFG_H;
#if defined(__FT930__)
if (pmcfg & MASK_SYS_PMCFG_SLAVE_PERI_IRQ_PEND)
{
// Clear d2xx hw engine wakeup.
SYS->PMCFG_H = MASK_SYS_PMCFG_SLAVE_PERI_IRQ_PEND;
}
#endif
if (pmcfg & MASK_SYS_PMCFG_PM_GPIO_IRQ_PEND)
{
// Clear GPIO wakeup pending.
SYS->PMCFG_H = MASK_SYS_PMCFG_PM_GPIO_IRQ_PEND;
}
#if defined(__FT900__)
// USB device power management interrupts.
if (pmcfg & (MASK_SYS_PMCFG_DEV_CONN_DEV |
MASK_SYS_PMCFG_DEV_DIS_DEV |
MASK_SYS_PMCFG_HOST_RST_DEV |
MASK_SYS_PMCFG_HOST_RESUME_DEV)
)
{
#if CFG_TUD_ENABLED
ft90x_usbd_pm_ISR(pmcfg);
#endif
}
#endif
}
#if CFG_TUD_ENABLED
int8_t board_ft90x_vbus(void)
{
return gpio_read(USBD_VBUS_DTC_PIN);
}
#endif
//--------------------------------------------------------------------+
// Board porting API
//--------------------------------------------------------------------+
// Turn LED on or off
void board_led_write(bool state)
{
gpio_write(GPIO_ETH_LED0, state);
}
// Get the current state of button
// a '1' means active (pressed), a '0' means inactive.
uint32_t board_button_read(void)
{
return 0;
}
// Get characters from UART
int board_uart_read(uint8_t *buf, int len)
{
int r = uart_readn(UART0, (uint8_t *)buf, len);
return r;
}
// Send characters to UART
int board_uart_write(void const *buf, int len)
{
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual" // uart_writen does not have const for buffer parameter.
int r = uart_writen(UART0, (uint8_t *)((const void *)buf), len);
#pragma GCC diagnostic pop
return r;
}
// Get current milliseconds
uint32_t board_millis(void)
{
uint32_t safe_ms;
CRITICAL_SECTION_BEGIN
safe_ms = timer_ms;
CRITICAL_SECTION_END
return safe_ms;
}
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