Initial version

main/sketch.ino.cpp

@@ -0,0 +1,121 @@
+/*
+  This file is part of the MKR WiFi 1010 firmware.
+  Copyright (C) 2018  Arduino AG (http://www.arduino.cc/)
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include <rom/uart.h>
+
+extern "C" {
+  #include <driver/periph_ctrl.h>
+}
+
+#include <Arduino.h>
+
+#include <SPIS.h>
+#include <WiFi.h>
+
+#include "CommandHandler.h"
+
+#define SPI_BUFFER_LEN SPI_MAX_DMA_LEN
+
+int debug = 0;
+
+uint8_t* commandBuffer;
+uint8_t* responseBuffer;
+
+void dumpBuffer(const char* label, uint8_t data[], int length) {
+  ets_printf("%s: ", label);
+
+  for (int i = 0; i < length; i++) {
+    ets_printf("%02x", data[i]);
+  }
+
+  ets_printf("\r\n");
+}
+
+void setDebug(int d) {
+  debug = d;
+
+  if (debug) {
+    PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[1], 0);
+    PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[3], 0);
+
+    const char* default_uart_dev = "/dev/uart/0";
+    _GLOBAL_REENT->_stdin  = fopen(default_uart_dev, "r");
+    _GLOBAL_REENT->_stdout = fopen(default_uart_dev, "w");
+    _GLOBAL_REENT->_stderr = fopen(default_uart_dev, "w");
+
+    uart_div_modify(CONFIG_CONSOLE_UART_NUM, (APB_CLK_FREQ << 4) / 115200);
+
+    // uartAttach();
+    ets_install_uart_printf();
+    uart_tx_switch(CONFIG_CONSOLE_UART_NUM);
+  } else {
+    PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[1], PIN_FUNC_GPIO);
+    PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[3], PIN_FUNC_GPIO);
+
+    _GLOBAL_REENT->_stdin  = (FILE*) &__sf_fake_stdin;
+    _GLOBAL_REENT->_stdout = (FILE*) &__sf_fake_stdout;
+    _GLOBAL_REENT->_stderr = (FILE*) &__sf_fake_stderr;
+
+    ets_install_putc1(NULL);
+    ets_install_putc2(NULL);
+  }
+}
+
+void setup() {
+  setDebug(debug);
+
+  // put SWD and SWCLK pins connected to SAMD as inputs
+  pinMode(15, INPUT);
+  pinMode(21, INPUT);
+
+  SPIS.begin();
+
+  if (WiFi.status() == WL_NO_SHIELD) {
+    while (1); // no shield
+  }
+  
+  commandBuffer = (uint8_t*)heap_caps_malloc(SPI_BUFFER_LEN, MALLOC_CAP_DMA);
+  responseBuffer = (uint8_t*)heap_caps_malloc(SPI_BUFFER_LEN, MALLOC_CAP_DMA);
+
+  CommandHandler.begin();
+}
+
+void loop() {
+  // wait for a command
+  memset(commandBuffer, 0x00, SPI_BUFFER_LEN);
+  int commandLength = SPIS.transfer(NULL, commandBuffer, SPI_BUFFER_LEN);
+
+  if (commandLength == 0) {
+    return;
+  }
+
+  if (debug) {
+    dumpBuffer("COMMAND", commandBuffer, commandLength);
+  }
+
+  // process
+  memset(responseBuffer, 0x00, SPI_BUFFER_LEN);
+  int responseLength = CommandHandler.handle(commandBuffer, responseBuffer);
+
+  SPIS.transfer(responseBuffer, NULL, responseLength);
+
+  if (debug) {
+    dumpBuffer("RESPONSE", responseBuffer, responseLength);
+  }
+}