Squashed 'third_party/pico-sdk/lib/tinyusb/' content from commit 868948f67c
Change-Id: I5d33c2566dd597be9d4b1c30d4b3723c5ef4a265
git-subtree-dir: third_party/pico-sdk/lib/tinyusb
git-subtree-split: 868948f67c90fa7c2553cdcd604b52862cf55720
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/examples/device/dfu_runtime/src/main.c b/examples/device/dfu_runtime/src/main.c
new file mode 100644
index 0000000..823c71a
--- /dev/null
+++ b/examples/device/dfu_runtime/src/main.c
@@ -0,0 +1,135 @@
+/*
+ * 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.
+ *
+ */
+
+/* After device is enumerated, run following command
+ *
+ * $ dfu-util -l
+ *
+ * It should be able to list our device as in Runtime mode. Then run
+ *
+ * $ dfu-util -e
+ *
+ * This will send DETTACH command to put device into bootloader. Since this example
+ * is minimal, it doesn't actually go into DFU mode but rather change the LED blinking
+ * pattern to fast rate as indicator.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board.h"
+#include "tusb.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+
+/* Blink pattern
+ * - 1000 ms : device should reboot
+ * - 250 ms : device not mounted
+ * - 0 ms : device mounted
+ * - 2500 ms : device is suspended
+ */
+enum {
+ BLINK_DFU_MODE = 100,
+ BLINK_NOT_MOUNTED = 250,
+ BLINK_MOUNTED = 1000,
+ BLINK_SUSPENDED = 2500,
+};
+
+static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
+
+void led_blinking_task(void);
+
+/*------------- MAIN -------------*/
+int main(void)
+{
+ board_init();
+
+ tusb_init();
+
+ while (1)
+ {
+ tud_task(); // tinyusb device task
+ led_blinking_task();
+ }
+
+ return 0;
+}
+
+//--------------------------------------------------------------------+
+// Device callbacks
+//--------------------------------------------------------------------+
+
+// Invoked when device is mounted
+void tud_mount_cb(void)
+{
+ blink_interval_ms = BLINK_MOUNTED;
+}
+
+// Invoked when device is unmounted
+void tud_umount_cb(void)
+{
+ blink_interval_ms = BLINK_NOT_MOUNTED;
+}
+
+// Invoked when usb bus is suspended
+// remote_wakeup_en : if host allow us to perform remote wakeup
+// Within 7ms, device must draw an average of current less than 2.5 mA from bus
+void tud_suspend_cb(bool remote_wakeup_en)
+{
+ (void) remote_wakeup_en;
+ blink_interval_ms = BLINK_SUSPENDED;
+}
+
+// Invoked when usb bus is resumed
+void tud_resume_cb(void)
+{
+ blink_interval_ms = BLINK_MOUNTED;
+}
+
+// Invoked on DFU_DETACH request to reboot to the bootloader
+void tud_dfu_runtime_reboot_to_dfu_cb(void)
+{
+ blink_interval_ms = BLINK_DFU_MODE;
+}
+
+//--------------------------------------------------------------------+
+// BLINKING TASK + Indicator pulse
+//--------------------------------------------------------------------+
+
+void led_blinking_task(void)
+{
+ static uint32_t start_ms = 0;
+ static bool led_state = false;
+
+ // Blink every interval ms
+ if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
+ start_ms += blink_interval_ms;
+
+ board_led_write(led_state);
+ led_state = 1 - led_state; // toggle
+}