Adds support for USB device functionality for AT90USB and

ATU2/U4 series devices.

Support tested on a PJRC TEENSY2++ board with AT90USB1286.

Signed-off-by: Rob Lippert <roblip@gmail.com>



git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9487 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 84 insertions, 0 deletions

diff --git a/demos/AVR/RT-TEENSY2-USB/main.c b/demos/AVR/RT-TEENSY2-USB/main.c
new file mode 100644
index 000000000..376751852
--- /dev/null
+++ b/demos/AVR/RT-TEENSY2-USB/main.c
@@ -0,0 +1,84 @@
+/*
+    Copyright (C) 2015 Robert Lippert
+
+    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 "usbcfg.h"
+
+static THD_WORKING_AREA(waThread1, 128);
+static THD_FUNCTION(Thread1, arg) {
+  (void)arg;
+  chRegSetThreadName("blinker");
+  while (true) {
+    palTogglePad(IOPORT4, BOARD_LED1);
+    chThdSleepMilliseconds(1000);
+  }
+}
+
+#define SHELL_WA_SIZE   THD_WORKING_AREA_SIZE(512)
+
+static const ShellConfig shell_cfg1 = {
+  (BaseSequentialStream *)&SDU1,
+  NULL
+};
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+  /*
+   * System initializations.
+   * - HAL initialization, this also initializes the configured device drivers
+   *   and performs the board-specific initializations.
+   * - Kernel initialization, the main() function becomes a thread and the
+   *   RTOS is active.
+   */
+  halInit();
+  chSysInit();
+
+  palClearPad(IOPORT4, BOARD_LED1);
+
+  /*
+   * Shell manager initialization.
+   */
+  shellInit();
+
+  /* Initializes a serial-over-USB CDC driver. */
+  sduObjectInit(&SDU1);
+  sduStart(&SDU1, &serusbcfg);
+
+  /* Initialize USB */
+  usbStart(serusbcfg.usbp, &usbcfg);
+
+  /*
+   * Starts the LED blinker thread.
+   */
+  chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+
+  /*
+   * Normal main() thread activity.
+   */
+  while (true) {
+    if (SDU1.config->usbp->state == USB_ACTIVE) {
+      thread_t *shelltp = chThdCreateFromHeap(NULL, SHELL_WA_SIZE,
+                                              "shell", NORMALPRIO + 1,
+                                              shellThread, (void *)&shell_cfg1);
+      chThdWait(shelltp);               /* Waiting termination.             */
+    }
+    chThdSleepMilliseconds(1000);
+  }
+}