2befcb8a9d
Adds support for hardware i2c to the zephyr port. Similar to other ports such as stm32 and nrf, we only implement the i2c protocol functions (readfrom and writeto) and defer memory operations (readfrom_mem, readfrom_mem_into, and writeto_mem) to the software i2c implementation. This may need to change in the future because zephyr is considering deprecating its i2c_transfer function in favor of i2c_write_read; in this case we would probably want to implement the memory operations directly using i2c_write_read. Tested with the accelerometer on frdm_k64f and bbc_microbit boards.
160 lines
5.5 KiB
C
160 lines
5.5 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) 2016 Linaro Limited
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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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#include <alloca.h>
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// Include Zephyr's autoconf.h, which should be made first by Zephyr makefiles
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#include "autoconf.h"
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// Included here to get basic Zephyr environment (macros, etc.)
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#include <zephyr.h>
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// Usually passed from Makefile
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#ifndef MICROPY_HEAP_SIZE
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#define MICROPY_HEAP_SIZE (16 * 1024)
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#endif
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#define MICROPY_ENABLE_SOURCE_LINE (1)
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#define MICROPY_STACK_CHECK (1)
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#define MICROPY_ENABLE_GC (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_KBD_EXCEPTION (1)
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#define MICROPY_CPYTHON_COMPAT (0)
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#define MICROPY_PY_ASYNC_AWAIT (0)
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#define MICROPY_PY_ATTRTUPLE (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_MIN_MAX (0)
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#define MICROPY_PY_BUILTINS_PROPERTY (0)
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#define MICROPY_PY_BUILTINS_RANGE_ATTRS (0)
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#define MICROPY_PY_BUILTINS_REVERSED (0)
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#define MICROPY_PY_BUILTINS_SET (0)
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#define MICROPY_PY_BUILTINS_STR_COUNT (0)
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#define MICROPY_PY_BUILTINS_HELP (1)
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#define MICROPY_PY_BUILTINS_HELP_TEXT zephyr_help_text
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#define MICROPY_PY_ARRAY (0)
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#define MICROPY_PY_COLLECTIONS (0)
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#define MICROPY_PY_CMATH (0)
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#define MICROPY_PY_IO (0)
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#define MICROPY_PY_MICROPYTHON_MEM_INFO (1)
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#define MICROPY_PY_MACHINE (1)
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#define MICROPY_PY_MACHINE_I2C (1)
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#define MICROPY_PY_MACHINE_I2C_MAKE_NEW machine_hard_i2c_make_new
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#define MICROPY_PY_MACHINE_PIN_MAKE_NEW mp_pin_make_new
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#define MICROPY_MODULE_WEAK_LINKS (1)
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#define MICROPY_PY_STRUCT (0)
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#ifdef CONFIG_NETWORKING
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// If we have networking, we likely want errno comfort
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#define MICROPY_PY_UERRNO (1)
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#define MICROPY_PY_USOCKET (1)
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#endif
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#define MICROPY_PY_UBINASCII (1)
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#define MICROPY_PY_UHASHLIB (1)
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#define MICROPY_PY_UTIME (1)
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#define MICROPY_PY_UTIME_MP_HAL (1)
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#define MICROPY_PY_ZEPHYR (1)
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#define MICROPY_PY_ZSENSOR (1)
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#define MICROPY_PY_SYS_MODULES (0)
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#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_LONGLONG)
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#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_FLOAT)
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#define MICROPY_PY_BUILTINS_COMPLEX (0)
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// Saving extra crumbs to make sure binary fits in 128K
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#define MICROPY_COMP_CONST_FOLDING (0)
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#define MICROPY_COMP_CONST (0)
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#define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (0)
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#define MICROPY_PY_SYS_PLATFORM "zephyr"
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#ifdef CONFIG_BOARD
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#define MICROPY_HW_BOARD_NAME "zephyr-" CONFIG_BOARD
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#else
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#define MICROPY_HW_BOARD_NAME "zephyr-generic"
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#endif
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#ifdef CONFIG_SOC
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#define MICROPY_HW_MCU_NAME CONFIG_SOC
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#else
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#define MICROPY_HW_MCU_NAME "unknown-cpu"
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#endif
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#define MICROPY_MODULE_FROZEN_STR (1)
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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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#define MP_STATE_PORT MP_STATE_VM
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#define MICROPY_PORT_ROOT_POINTERS \
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const char *readline_hist[8];
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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_time;
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extern const struct _mp_obj_module_t mp_module_usocket;
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extern const struct _mp_obj_module_t mp_module_zephyr;
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extern const struct _mp_obj_module_t mp_module_zsensor;
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#if MICROPY_PY_USOCKET
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#define MICROPY_PY_USOCKET_DEF { MP_ROM_QSTR(MP_QSTR_usocket), MP_ROM_PTR(&mp_module_usocket) },
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#define MICROPY_PY_USOCKET_WEAK_DEF { MP_ROM_QSTR(MP_QSTR_socket), MP_ROM_PTR(&mp_module_usocket) },
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#else
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#define MICROPY_PY_USOCKET_DEF
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#define MICROPY_PY_USOCKET_WEAK_DEF
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#endif
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#if MICROPY_PY_UTIME
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#define MICROPY_PY_UTIME_DEF { MP_ROM_QSTR(MP_QSTR_utime), MP_ROM_PTR(&mp_module_time) },
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#else
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#define MICROPY_PY_UTIME_DEF
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#endif
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#if MICROPY_PY_ZEPHYR
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#define MICROPY_PY_ZEPHYR_DEF { MP_ROM_QSTR(MP_QSTR_zephyr), MP_ROM_PTR(&mp_module_zephyr) },
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#else
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#define MICROPY_PY_ZEPHYR_DEF
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#endif
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#if MICROPY_PY_ZSENSOR
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#define MICROPY_PY_ZSENSOR_DEF { MP_ROM_QSTR(MP_QSTR_zsensor), MP_ROM_PTR(&mp_module_zsensor) },
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#else
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#define MICROPY_PY_ZSENSOR_DEF
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#endif
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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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MICROPY_PY_USOCKET_DEF \
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MICROPY_PY_UTIME_DEF \
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MICROPY_PY_ZEPHYR_DEF \
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MICROPY_PY_ZSENSOR_DEF \
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#define MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS \
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{ MP_ROM_QSTR(MP_QSTR_time), MP_ROM_PTR(&mp_module_time) }, \
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MICROPY_PY_USOCKET_WEAK_DEF \
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// extra built in names to add to the global namespace
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#define MICROPY_PORT_BUILTINS \
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