From d4b4ad5873f415e8c8a8303ece579d0569becd2d Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 5 Oct 2022 19:13:25 +0200
Subject: add first chibios example (WIP)

---
 chibios-blink/c1_main.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 chibios-blink/c1_main.c

(limited to 'chibios-blink/c1_main.c')

diff --git a/chibios-blink/c1_main.c b/chibios-blink/c1_main.c
new file mode 100644
index 0000000..20364b1
--- /dev/null
+++ b/chibios-blink/c1_main.c
@@ -0,0 +1,100 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+#include "shell.h"
+#include "chprintf.h"
+
+#define _offsetof(type, m) ((size_t)((char *)&((type)0)->m - (char *)0))
+
+#define SHELL_WA_SIZE   THD_WORKING_AREA_SIZE(2048)
+
+static const ShellCommand commands[] = {
+  {NULL, NULL}
+};
+
+static const ShellConfig shell_cfg1 = {
+  (BaseSequentialStream *)&SIOD0,
+  commands
+};
+
+/*
+ * Green LED blinker thread, times are in milliseconds.
+ */
+static CH_SYS_CORE1_MEMORY THD_WORKING_AREA(waThreadTimer, 128);
+static THD_FUNCTION(ThreadTimer, arg) {
+  extern semaphore_t blinker_sem;
+
+  (void)arg;
+  chRegSetThreadName("timer");
+  while (true) {
+    chThdSleepMilliseconds(500);
+    chSemSignal(&blinker_sem);
+  }
+}
+
+/**
+ * Core 1 entry point.
+ */
+void c1_main(void) {
+
+  /*
+   * Starting a new OS instance running on this core, we need to wait for
+   * system initialization on the other side.
+   */
+  chSysWaitSystemState(ch_sys_running);
+  chInstanceObjectInit(&ch1, &ch_core1_cfg);
+
+  /* It is alive now.*/
+  chSysUnlock();
+
+  /*
+   * Setting up GPIOs.
+   */
+  palSetLineMode(0U, PAL_MODE_ALTERNATE_UART);
+  palSetLineMode(1U, PAL_MODE_ALTERNATE_UART);
+
+  /*
+   * Activates the UART0 SIO driver using the default configuration.
+   */
+  sioStart(&SIOD0, NULL);
+  sioStartOperation(&SIOD0, NULL);
+
+  /*
+   * Creates the timer thread.
+   */
+  chThdCreateStatic(waThreadTimer, sizeof(waThreadTimer),
+                    NORMALPRIO + 10, ThreadTimer, NULL);
+
+  /*
+   * Shell manager initialization.
+   */
+  shellInit();
+
+  /*
+   * Normal main() thread activity, in this demo it does nothing except
+   * sleeping in a loop (re)spawning a shell.
+   */
+  while (true) {
+    thread_t *shelltp = chThdCreateFromHeap(NULL, SHELL_WA_SIZE,
+                                            "shell", NORMALPRIO + 1,
+                                            shellThread, (void *)&shell_cfg1);
+    chThdWait(shelltp);               /* Waiting termination.             */
+    chThdSleepMilliseconds(500);
+  }
+}
-- 
cgit v1.2.3