65 lines
2.5 KiB
C
65 lines
2.5 KiB
C
// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2022 Scott Shawcroft for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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#include "py/obj.h"
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#include "py/mphal.h"
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#include "py/runtime.h"
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#include "shared-bindings/usb_host/__init__.h"
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#include "shared-bindings/usb_host/Port.h"
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#include "supervisor/usb.h"
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//| """USB Host
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//|
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//| The `usb_host` module allows you to manage USB host ports. To communicate
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//| with devices use the `usb` module that is a subset of PyUSB's API.
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//| """
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//|
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//| def set_user_keymap(keymap: ReadableBuffer, /) -> None:
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//| """Set the keymap used by a USB HID keyboard in kernel mode
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//|
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//| The keymap consists of 256 or 384 1-byte entries that map from USB keycodes
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//| to ASCII codes. The first 128 entries are for unmodified keys,
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//| the next 128 entries are for shifted keys,and the next optional 128 entries are
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//| for altgr-modified keys.
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//|
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//| The values must all be ASCII (32 through 126 inclusive); other values are not valid.
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//|
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//| The values at index 0, 128, and 256 (if the keymap has 384 entries) must be
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//| 0; other values are reserved for future expansion to indicate alternate
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//| keymap formats.
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//|
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//| At other indices, the value 0 is used to indicate that the normal
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//| definition is still used. For instance, the entry for HID_KEY_ARROW_UP
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//| (0x52) is usually 0 so that the default behavior of sending an escape code
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//| is preserved.
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//|
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//| This function is a CircuitPython extension not present in PyUSB
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//| """
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//|
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static mp_obj_t usb_set_user_keymap(mp_obj_t buf_in) {
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mp_buffer_info_t bufinfo;
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mp_get_buffer_raise(buf_in, &bufinfo, MP_BUFFER_READ);
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usb_keymap_set(bufinfo.buf, bufinfo.len);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(usb_set_user_keymap_obj, usb_set_user_keymap);
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static mp_map_elem_t usb_host_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_usb_host) },
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{ MP_ROM_QSTR(MP_QSTR_Port), MP_OBJ_FROM_PTR(&usb_host_port_type) },
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{ MP_ROM_QSTR(MP_QSTR_set_user_keymap), MP_OBJ_FROM_PTR(&usb_set_user_keymap_obj) },
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};
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static MP_DEFINE_CONST_DICT(usb_host_module_globals, usb_host_module_globals_table);
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const mp_obj_module_t usb_host_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&usb_host_module_globals,
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};
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MP_REGISTER_MODULE(MP_QSTR_usb_host, usb_host_module);
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