2020-12-08 01:00:00 -05:00
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/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 microDev
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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2020-12-17 14:04:56 -05:00
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#include "shared-bindings/dualbank/__init__.h"
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2020-12-08 01:00:00 -05:00
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2022-10-05 23:50:54 -04:00
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#if CIRCUITPY_STORAGE_EXTEND
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#include "supervisor/flash.h"
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#endif
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2023-01-29 05:42:05 -05:00
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//| """Dualbank Module
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//|
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//| The `dualbank` module adds ability to update and switch between the
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//| two identical app partitions, which can contain different firmware versions.
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//|
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//| Having two partitions enables rollback functionality.
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//|
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//| The two partitions are defined as the boot partition and the next-update partition.
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//| Calling `dualbank.flash()` writes the next-update partition.
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//|
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//| After the next-update partition is written a validation check is performed
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//| and on a successful validation this partition is set as the boot partition.
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//| On next reset, firmware will be loaded from this partition.
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//|
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//| Use cases:
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//| * Can be used for ``OTA`` Over-The-Air updates.
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//| * Can be used for ``dual-boot`` of different firmware versions or platforms.
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//|
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//| .. note::
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//|
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//| Boards with flash ``=2MB``:
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//| This module is unavailable as the flash is only large enough for one app partition.
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//|
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//| Boards with flash ``>2MB``:
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//| This module is enabled/disabled at runtime based on whether the ``CIRCUITPY`` drive
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//| is extended or not. See `storage.erase_filesystem()` for more information.
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//|
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//| .. code-block:: python
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//|
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//| import dualbank
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//|
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//| dualbank.flash(buffer, offset)
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//| dualbank.switch()
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//| """
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//| ...
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2023-02-01 03:08:41 -05:00
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//|
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2020-12-08 01:00:00 -05:00
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2022-10-05 23:50:54 -04:00
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#if CIRCUITPY_STORAGE_EXTEND
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STATIC void raise_error_if_storage_extended(void) {
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if (supervisor_flash_get_extended()) {
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mp_raise_msg_varg(&mp_type_RuntimeError, MP_ERROR_TEXT("%q is %q"), MP_QSTR_storage, MP_QSTR_extended);
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}
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}
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#endif
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2022-09-27 16:21:42 -04:00
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//| def flash(buffer: ReadableBuffer, offset: int = 0) -> None:
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//| """Writes one of the two app partitions at the given offset.
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//|
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//| This can be called multiple times when flashing the firmware in smaller chunks.
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//|
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//| :param ReadableBuffer buffer: The entire firmware or a partial chunk.
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//| :param int offset: Start writing at this offset in the app partition.
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//| """
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2020-12-10 14:31:01 -05:00
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//| ...
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//|
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STATIC mp_obj_t dualbank_flash(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_buffer, ARG_offset };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_buffer, MP_ARG_OBJ | MP_ARG_REQUIRED },
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{ MP_QSTR_offset, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} },
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};
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2022-10-05 23:50:54 -04:00
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#if CIRCUITPY_STORAGE_EXTEND
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raise_error_if_storage_extended();
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#endif
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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if (args[ARG_offset].u_int < 0) {
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mp_raise_ValueError(MP_ERROR_TEXT("offset must be >= 0"));
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}
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mp_buffer_info_t bufinfo;
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mp_get_buffer_raise(args[ARG_buffer].u_obj, &bufinfo, MP_BUFFER_READ);
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2020-12-08 01:00:00 -05:00
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common_hal_dualbank_flash(bufinfo.buf, bufinfo.len, args[ARG_offset].u_int);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(dualbank_flash_obj, 0, dualbank_flash);
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//| def switch() -> None:
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//| """Switches to the next-update partition.
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2020-12-17 14:04:56 -05:00
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//|
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2023-01-29 05:42:05 -05:00
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//| On next reset, firmware will be loaded from the partition just switched over to.
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2020-12-17 14:04:56 -05:00
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//| """
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//| ...
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//|
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2020-12-17 14:04:56 -05:00
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STATIC mp_obj_t dualbank_switch(void) {
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#if CIRCUITPY_STORAGE_EXTEND
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raise_error_if_storage_extended();
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#endif
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2020-12-17 14:04:56 -05:00
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common_hal_dualbank_switch();
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2020-12-08 01:00:00 -05:00
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(dualbank_switch_obj, dualbank_switch);
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STATIC const mp_rom_map_elem_t dualbank_module_globals_table[] = {
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// module name
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_dualbank) },
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// module functions
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{ MP_ROM_QSTR(MP_QSTR_flash), MP_ROM_PTR(&dualbank_flash_obj) },
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{ MP_ROM_QSTR(MP_QSTR_switch), MP_ROM_PTR(&dualbank_switch_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(dualbank_module_globals, dualbank_module_globals_table);
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const mp_obj_module_t dualbank_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&dualbank_module_globals,
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};
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Convert more modules to use MP_REGISTER_MODULE
Convert _eve, _pew, aesio, alarm, audiopwmio, bitops, camera, canio, dualbank, gnss, i2cperipheral, imagecapture, ipaddress, memorymonitor, sdioio, socketpool, ssl, uheap, ustack, watchdog, and wifi modules to use MP_REGISTER_MODULE.
Related to #5183.
2021-09-01 00:12:00 -04:00
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2023-08-07 20:45:57 -04:00
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MP_REGISTER_MODULE(MP_QSTR_dualbank, dualbank_module);
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