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https://github.com/licsber/micropython.git
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dfd4324eb1
This commit adds full support for a filesystem on all boards, with a block device object mimxrt.Flash() and uos.VfsLfs2 enabled. Main changes are: - Refactoring of linker scripts to accomodate reserved area for VFS. VFS will take up most of the available flash. 1M is reserved for code. 9K is reserved for flash configuration, interrupts, etc. - Addition of _boot.py with filesystem init code, called from main.c. - Definition of the mimxrt module with a Flash class in modmimxrt.[ch]. - Implementation of a flash driver class in mimxrt_flash.c. All flashing related functions are stored in ITCM RAM. - Addition of the uos module with filesystem functions. - Implementation of uos.urandom() for the sake of completeness of the uos module. It uses sample code from CircuitPython supplied under MIT license, which uses the NXP SDK example code. Done in collaboration with Philipp Ebensberger aka @alphaFred who contributed the essential part to enable writing to flash while code is executing, among other things.
135 lines
5.2 KiB
C
135 lines
5.2 KiB
C
/*
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* This file is part of the MicroPython 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) 2019 Damien P. George
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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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// Options controlling how MicroPython is built, overriding defaults in py/mpconfig.h
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// Board specific definitions
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#include "mpconfigboard.h"
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// Memory allocation policies
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#define MICROPY_GC_STACK_ENTRY_TYPE uint16_t
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#define MICROPY_GC_ALLOC_THRESHOLD (0)
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#define MICROPY_ALLOC_PARSE_CHUNK_INIT (32)
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#define MICROPY_ALLOC_PATH_MAX (256)
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// Compiler configuration
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#define MICROPY_COMP_CONST (0)
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// Python internal features
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#define MICROPY_READER_VFS (1)
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#define MICROPY_ENABLE_GC (1)
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#define MICROPY_ENABLE_FINALISER (1)
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#define MICROPY_STACK_CHECK (1)
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#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF (1)
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#define MICROPY_KBD_EXCEPTION (1)
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#define MICROPY_HELPER_REPL (1)
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#define MICROPY_REPL_AUTO_INDENT (1)
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#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
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#define MICROPY_ENABLE_SOURCE_LINE (1)
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#define MICROPY_STREAMS_NON_BLOCK (1)
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#define MICROPY_MODULE_BUILTIN_INIT (1)
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#define MICROPY_MODULE_WEAK_LINKS (1)
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#define MICROPY_CAN_OVERRIDE_BUILTINS (1)
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#define MICROPY_VFS (1)
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#define MICROPY_MODULE_FROZEN_MPY (1)
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#define MICROPY_QSTR_EXTRA_POOL mp_qstr_frozen_const_pool
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// Control over Python builtins
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#define MICROPY_PY_BUILTINS_STR_COUNT (0)
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#define MICROPY_PY_BUILTINS_MEMORYVIEW (1)
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#define MICROPY_PY_BUILTINS_SET (1)
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#define MICROPY_PY_BUILTINS_FROZENSET (0)
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#define MICROPY_PY_BUILTINS_PROPERTY (0)
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#define MICROPY_PY_BUILTINS_ENUMERATE (0)
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#define MICROPY_PY_BUILTINS_FILTER (0)
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#define MICROPY_PY_BUILTINS_REVERSED (1)
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#define MICROPY_PY_BUILTINS_MIN_MAX (0)
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#define MICROPY_PY_BUILTINS_HELP (1)
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#define MICROPY_PY_BUILTINS_HELP_MODULES (1)
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#define MICROPY_PY_BUILTINS_HELP_TEXT mimxrt_help_text
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#define MICROPY_PY___FILE__ (0)
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#define MICROPY_PY_MICROPYTHON_MEM_INFO (1)
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#define MICROPY_PY_ARRAY_SLICE_ASSIGN (1)
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#define MICROPY_PY_COLLECTIONS (0)
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#define MICROPY_PY_IO_IOBASE (1)
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#define MICROPY_PY_IO_FILEIO (1)
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#define MICROPY_PY_SYS_MAXSIZE (1)
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#define MICROPY_PY_SYS_PLATFORM "mimxrt"
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#define MICROPY_PY_SYS_STDFILES (1)
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#define MICROPY_PY_SYS_STDIO_BUFFER (1)
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// Extended modules
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#define MICROPY_PY_UTIME_MP_HAL (1)
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#define MICROPY_PY_MACHINE (1)
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// Use VfsLfs2's types for fileio/textio
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#define mp_type_fileio mp_type_vfs_lfs2_fileio
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#define mp_type_textio mp_type_vfs_lfs2_textio
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// Use VFS's functions for import stat and builtin open
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#define mp_import_stat mp_vfs_import_stat
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#define mp_builtin_open_obj mp_vfs_open_obj
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// Hooks to add builtins
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#define MICROPY_PORT_BUILTINS \
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{ MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&mp_builtin_open_obj) },
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extern const struct _mp_obj_module_t mp_module_machine;
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extern const struct _mp_obj_module_t mp_module_mimxrt;
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extern const struct _mp_obj_module_t mp_module_uos;
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extern const struct _mp_obj_module_t mp_module_utime;
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#define MICROPY_PORT_BUILTIN_MODULES \
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{ MP_ROM_QSTR(MP_QSTR_machine), MP_ROM_PTR(&mp_module_machine) }, \
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{ MP_ROM_QSTR(MP_QSTR_mimxrt), (mp_obj_t)&mp_module_mimxrt }, \
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{ MP_ROM_QSTR(MP_QSTR_uos), MP_ROM_PTR(&mp_module_uos) }, \
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{ MP_ROM_QSTR(MP_QSTR_utime), MP_ROM_PTR(&mp_module_utime) }, \
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#define MICROPY_PORT_ROOT_POINTERS \
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const char *readline_hist[8];
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#define MP_STATE_PORT MP_STATE_VM
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// Miscellaneous settings
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#define MICROPY_EVENT_POLL_HOOK \
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do { \
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extern void mp_handle_pending(bool); \
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mp_handle_pending(true); \
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__WFE(); \
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} while (0);
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#define MICROPY_MAKE_POINTER_CALLABLE(p) ((void *)((mp_uint_t)(p) | 1))
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#define MP_SSIZE_MAX (0x7fffffff)
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typedef int mp_int_t; // must be pointer size
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typedef unsigned mp_uint_t; // must be pointer size
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typedef long mp_off_t;
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// Need to provide a declaration/definition of alloca()
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#include <alloca.h>
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