add circuitpython code

1 files changed, 88 insertions, 0 deletions

diff --git a/circuitpython/supervisor/usb.h b/circuitpython/supervisor/usb.h
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--- /dev/null
+++ b/circuitpython/supervisor/usb.h
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+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 hathach for Adafruit Industries
+ *
+ * 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SUPERVISOR_USB_H
+#define MICROPY_INCLUDED_SUPERVISOR_USB_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+// Ports must call this as frequently as they can in order to keep the USB
+// connection alive and responsive.  Normally this is called from background
+// tasks after the USB IRQ handler is executed, but in specific circumstances
+// it may be necessary to call it directly.
+void usb_background(void);
+
+// Schedule usb background
+void usb_background_schedule(void);
+
+// Ports must call this from their particular USB IRQ handler
+void usb_irq_handler(int instance);
+
+// Only inits the USB peripheral clocks and pins. The peripheral will be initialized by
+// TinyUSB.
+void init_usb_hardware(void);
+
+// Temporary hook for code after init. Only used for RP2040.
+void post_usb_init(void);
+
+// Indexes and counts updated as descriptors are built.
+typedef struct {
+    size_t current_interface;
+    size_t current_endpoint;
+    size_t num_in_endpoints;
+    size_t num_out_endpoints;
+} descriptor_counts_t;
+
+// Shared implementation.
+bool usb_enabled(void);
+void usb_add_interface_string(uint8_t interface_string_index, const char str[]);
+void usb_build_descriptors(void);
+void usb_disconnect(void);
+void usb_init(void);
+void usb_set_defaults(void);
+size_t usb_boot_py_data_size(void);
+void usb_get_boot_py_data(uint8_t *temp_storage, size_t temp_storage_size);
+void usb_return_boot_py_data(uint8_t *temp_storage, size_t temp_storage_size);
+
+// Further initialization that must be done with a VM present.
+void usb_setup_with_vm(void);
+
+
+// Propagate plug/unplug events to the MSC logic.
+#if CIRCUITPY_USB_MSC
+void usb_msc_mount(void);
+void usb_msc_umount(void);
+bool usb_msc_ejected(void);
+
+// Locking MSC prevents presenting the drive on plug-in when in use by something
+// else (likely BLE.)
+bool usb_msc_lock(void);
+void usb_msc_unlock(void);
+#endif
+
+#endif // MICROPY_INCLUDED_SUPERVISOR_USB_H