tinyusb/hw/bsp/raspberrypi4/family.c

/* 
 * 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 "bsp/board.h"
#include "board.h"

#include "io.h"

//--------------------------------------------------------------------+
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
void OTG_FS_IRQHandler(void)
{
  tud_int_handler(0);
}

//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM
//--------------------------------------------------------------------+

//--------------------------------------------------------------------+
// Board porting API
//--------------------------------------------------------------------+

void print(void) {
  const char* greeting2 = "hello from cm100\r\n";
  board_uart_write(greeting2, strlen(greeting2));
}

void board_init(void)
{
  gpio_initOutputPinWithPullNone(18);
  gpio_setPinOutputBool(18, true);
  gpio_initOutputPinWithPullNone(42);
  // gpio_initOutputPinWithPullNone(23);
  // gpio_initOutputPinWithPullNone(24);
  // gpio_initOutputPinWithPullNone(25);
  gpio_setPinOutputBool(18, false);
  uart_init();
  gpio_setPinOutputBool(18, true);
  const char* greeting = "hello to gdb2\r\n";
  gpio_setPinOutputBool(18, false);
  for (size_t i = 0; i < 5; i++) {
  // while (true) {
    for (size_t j = 0; j < 1000000; j++) {
      __asm__("nop");
    }
    gpio_setPinOutputBool(42, true);
    gpio_setPinOutputBool(18, true);
    for (size_t j = 0; j < 1000000; j++) {
      __asm__("nop");
    }
    gpio_setPinOutputBool(42, false);
    gpio_setPinOutputBool(18, false);
  }
  // uart_writeText("hello from io\n");
  // gpio_setPinOutputBool(24, true);
  board_uart_write(greeting, strlen(greeting));
  // gpio_setPinOutputBool(24, false);
  // gpio_setPinOutputBool(25, true);
  print();
  // gpio_setPinOutputBool(25, false);
  while (true) {
  // for (size_t i = 0; i < 5; i++) {
    for (size_t j = 0; j < 10000000000; j++) {
      __asm__("nop");
    }
    gpio_setPinOutputBool(42, true);
    for (size_t j = 0; j < 10000000000; j++) {
      __asm__("nop");
    }
    gpio_setPinOutputBool(42, false);
  }
  // while (1) uart_update();
}

void board_led_write(bool state)
{
  gpio_setPinOutputBool(42, 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)
{
  for (int i = 0; i < len; i++) {
    const char* cbuf = buf;
    if (cbuf[i] == '\n') {
      uart_writeByteBlockingActual('\r');
    }
    uart_writeByteBlockingActual(cbuf[i]);
  }
  return len;
}

#if CFG_TUSB_OS  == OPT_OS_NONE
volatile uint32_t system_ticks = 0;
void SysTick_Handler (void)
{
  system_ticks++;
}

uint32_t board_millis(void)
{
  return system_ticks;
}
#endif

void HardFault_Handler (void)
{
  // asm("bkpt");
}

// Required by __libc_init_array in startup code if we are compiling using
// -nostdlib/-nostartfiles.
void _init(void)
{

}