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/*
* 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 <stdint.h>
#include <stdbool.h>
#include "../board.h"
#include "csr.h"
#include "irq.h"
//--------------------------------------------------------------------+
// Board porting API
//--------------------------------------------------------------------+
void fomu_error(uint32_t line)
{
(void)line;
TU_BREAKPOINT();
}
volatile uint32_t system_ticks = 0;
static void timer_init(void)
{
int t;
timer0_en_write(0);
t = CONFIG_CLOCK_FREQUENCY / 1000; // 1000 kHz tick
timer0_reload_write(t);
timer0_load_write(t);
timer0_en_write(1);
timer0_ev_enable_write(1);
timer0_ev_pending_write(1);
irq_setmask(irq_getmask() | (1 << TIMER0_INTERRUPT));
}
void isr(void)
{
unsigned int irqs;
irqs = irq_pending() & irq_getmask();
#if CFG_TUSB_RHPORT0_MODE == OPT_MODE_DEVICE
if (irqs & (1 << USB_INTERRUPT)) {
tud_int_handler(0);
}
#endif
if (irqs & (1 << TIMER0_INTERRUPT)) {
system_ticks++;
timer0_ev_pending_write(1);
}
}
void board_init(void)
{
irq_setmask(0);
irq_setie(1);
timer_init();
return;
}
void board_led_write(bool state)
{
rgb_ctrl_write(0xff);
rgb_raw_write(state);
}
uint32_t board_button_read(void)
{
return 0;
}
int board_uart_read(uint8_t* buf, int len)
{
(void) buf;
(void) len;
return 0;
}
int board_uart_write(void const * buf, int len)
{
int32_t offset = 0;
for (offset = 0; offset < len; offset++)
if (! (messible_status_read() & CSR_MESSIBLE_STATUS_FULL_OFFSET))
messible_in_write(((uint8_t *)buf)[offset]);
return len;
}
#if CFG_TUSB_OS == OPT_OS_NONE
uint32_t board_millis(void)
{
return system_ticks;
}
#endif
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