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micropython/ports/stm32/mpconfigport.h
Damien George 647fa63f9c stm32/softtimer: Support static soft timer instances. 
This adds support for making static (ie not on the Python GC heap) soft
timers.  This can be useful for a board to define a custom background
handler, or eventually for BLE/network processing to use instead of systick
slots; it will be more efficient using soft timer for this.

The main issue with using the existing code for static soft timers is that
it would combine heap allocated and statically allocated soft_timer_entry_t
instances in the same pairing-heap data structure.  This would prevent the
GC from tracing some of the heap allocated entries (because the GC won't
follow pointers outside the heap).

This commit makes it so that soft timer entries are explicitly marked,
instead of relying on implicit marking by having the root of the pairing
heap in the root pointer section.  Also, on soft reset only the heap-
allocated soft timers are deleted from the pairing heap, leaving the
statically allocated ones.

Signed-off-by: Damien George <damien@micropython.org>
2021-04-29 16:54:35 +10:00

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013-2017 Damien P. George
*
* 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.
*/
// Options to control how MicroPython is built for this port,
// overriding defaults in py/mpconfig.h.
// board specific definitions
#include "mpconfigboard.h"
#include "mpconfigboard_common.h"
// memory allocation policies
#ifndef MICROPY_GC_STACK_ENTRY_TYPE
#if MICROPY_HW_SDRAM_SIZE
#define MICROPY_GC_STACK_ENTRY_TYPE uint32_t
#else
#define MICROPY_GC_STACK_ENTRY_TYPE uint16_t
#endif
#endif
#define MICROPY_ALLOC_PATH_MAX (128)
// emitters
#define MICROPY_PERSISTENT_CODE_LOAD (1)
#ifndef MICROPY_EMIT_THUMB
#define MICROPY_EMIT_THUMB (1)
#endif
#ifndef MICROPY_EMIT_INLINE_THUMB
#define MICROPY_EMIT_INLINE_THUMB (1)
#endif
// compiler configuration
#define MICROPY_COMP_MODULE_CONST (1)
#define MICROPY_COMP_TRIPLE_TUPLE_ASSIGN (1)
#define MICROPY_COMP_RETURN_IF_EXPR (1)
// optimisations
#define MICROPY_OPT_COMPUTED_GOTO (1)
#define MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE (0)
#define MICROPY_OPT_MPZ_BITWISE (1)
#define MICROPY_OPT_MATH_FACTORIAL (1)
// Python internal features
#define MICROPY_READER_VFS (1)
#define MICROPY_ENABLE_GC (1)
#define MICROPY_ENABLE_FINALISER (1)
#define MICROPY_STACK_CHECK (1)
#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF (1)
#define MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE (0)
#define MICROPY_KBD_EXCEPTION (1)
#define MICROPY_HELPER_REPL (1)
#define MICROPY_REPL_INFO (1)
#define MICROPY_REPL_EMACS_KEYS (1)
#define MICROPY_REPL_AUTO_INDENT (1)
#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
#define MICROPY_ENABLE_SOURCE_LINE (1)
#ifndef MICROPY_FLOAT_IMPL // can be configured by each board via mpconfigboard.mk
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_FLOAT)
#endif
#define MICROPY_STREAMS_NON_BLOCK (1)
#define MICROPY_MODULE_BUILTIN_INIT (1)
#define MICROPY_MODULE_WEAK_LINKS (1)
#define MICROPY_CAN_OVERRIDE_BUILTINS (1)
#define MICROPY_USE_INTERNAL_ERRNO (1)
#define MICROPY_ENABLE_SCHEDULER (1)
#define MICROPY_SCHEDULER_DEPTH (8)
#define MICROPY_VFS (1)
// control over Python builtins
#define MICROPY_PY_FUNCTION_ATTRS (1)
#define MICROPY_PY_DESCRIPTORS (1)
#define MICROPY_PY_DELATTR_SETATTR (1)
#define MICROPY_PY_BUILTINS_STR_UNICODE (1)
#define MICROPY_PY_BUILTINS_STR_CENTER (1)
#define MICROPY_PY_BUILTINS_STR_PARTITION (1)
#define MICROPY_PY_BUILTINS_STR_SPLITLINES (1)
#define MICROPY_PY_BUILTINS_MEMORYVIEW (1)
#define MICROPY_PY_BUILTINS_FROZENSET (1)
#define MICROPY_PY_BUILTINS_SLICE_ATTRS (1)
#define MICROPY_PY_BUILTINS_SLICE_INDICES (1)
#define MICROPY_PY_BUILTINS_ROUND_INT (1)
#define MICROPY_PY_ALL_SPECIAL_METHODS (1)
#define MICROPY_PY_REVERSE_SPECIAL_METHODS (1)
#define MICROPY_PY_BUILTINS_COMPILE (MICROPY_ENABLE_COMPILER)
#define MICROPY_PY_BUILTINS_EXECFILE (MICROPY_ENABLE_COMPILER)
#define MICROPY_PY_BUILTINS_NOTIMPLEMENTED (1)
#define MICROPY_PY_BUILTINS_INPUT (1)
#define MICROPY_PY_BUILTINS_POW3 (1)
#define MICROPY_PY_BUILTINS_HELP (1)
#ifndef MICROPY_PY_BUILTINS_HELP_TEXT
#define MICROPY_PY_BUILTINS_HELP_TEXT stm32_help_text
#endif
#define MICROPY_PY_BUILTINS_HELP_MODULES (1)
#define MICROPY_PY_MICROPYTHON_MEM_INFO (1)
#define MICROPY_PY_ARRAY_SLICE_ASSIGN (1)
#define MICROPY_PY_COLLECTIONS_DEQUE (1)
#define MICROPY_PY_COLLECTIONS_ORDEREDDICT (1)
#define MICROPY_PY_MATH_SPECIAL_FUNCTIONS (1)
#define MICROPY_PY_MATH_ISCLOSE (1)
#define MICROPY_PY_MATH_FACTORIAL (1)
#define MICROPY_PY_CMATH (1)
#define MICROPY_PY_IO (1)
#define MICROPY_PY_IO_IOBASE (1)
#define MICROPY_PY_IO_FILEIO (MICROPY_VFS_FAT || MICROPY_VFS_LFS1 || MICROPY_VFS_LFS2)
#define MICROPY_PY_SYS_MAXSIZE (1)
#define MICROPY_PY_SYS_EXIT (1)
#define MICROPY_PY_SYS_STDFILES (1)
#define MICROPY_PY_SYS_STDIO_BUFFER (1)
#ifndef MICROPY_PY_SYS_PLATFORM // let boards override it if they want
#define MICROPY_PY_SYS_PLATFORM "pyboard"
#endif
#define MICROPY_PY_UERRNO (1)
#ifndef MICROPY_PY_THREAD
#define MICROPY_PY_THREAD (0)
#endif
// extended modules
#ifndef MICROPY_PY_UASYNCIO
#define MICROPY_PY_UASYNCIO (1)
#endif
#ifndef MICROPY_PY_UCTYPES
#define MICROPY_PY_UCTYPES (1)
#endif
#ifndef MICROPY_PY_UZLIB
#define MICROPY_PY_UZLIB (1)
#endif
#ifndef MICROPY_PY_UJSON
#define MICROPY_PY_UJSON (1)
#endif
#ifndef MICROPY_PY_URE
#define MICROPY_PY_URE (1)
#endif
#ifndef MICROPY_PY_URE_SUB
#define MICROPY_PY_URE_SUB (1)
#endif
#ifndef MICROPY_PY_UHEAPQ
#define MICROPY_PY_UHEAPQ (1)
#endif
#ifndef MICROPY_PY_UHASHLIB
#define MICROPY_PY_UHASHLIB (1)
#endif
#define MICROPY_PY_UHASHLIB_MD5 (MICROPY_PY_USSL)
#define MICROPY_PY_UHASHLIB_SHA1 (MICROPY_PY_USSL)
#define MICROPY_PY_UCRYPTOLIB (MICROPY_PY_USSL)
#ifndef MICROPY_PY_UBINASCII
#define MICROPY_PY_UBINASCII (1)
#define MICROPY_PY_UBINASCII_CRC32 (1)
#endif
#ifndef MICROPY_PY_UOS
#define MICROPY_PY_UOS (1)
#endif
#define MICROPY_PY_OS_DUPTERM (3)
#define MICROPY_PY_UOS_DUPTERM_BUILTIN_STREAM (1)
#ifndef MICROPY_PY_URANDOM
#define MICROPY_PY_URANDOM (1)
#define MICROPY_PY_URANDOM_SEED_INIT_FUNC (rng_get())
#endif
#ifndef MICROPY_PY_URANDOM_EXTRA_FUNCS
#define MICROPY_PY_URANDOM_EXTRA_FUNCS (1)
#endif
#define MICROPY_PY_USELECT (1)
#ifndef MICROPY_PY_UTIME
#define MICROPY_PY_UTIME (1)
#endif
#define MICROPY_PY_UTIME_MP_HAL (MICROPY_PY_UTIME)
#ifndef MICROPY_PY_UTIMEQ
#define MICROPY_PY_UTIMEQ (1)
#endif
#define MICROPY_PY_LWIP_SOCK_RAW (MICROPY_PY_LWIP)
#ifndef MICROPY_PY_MACHINE
#define MICROPY_PY_MACHINE (1)
#define MICROPY_PY_MACHINE_PULSE (1)
#define MICROPY_PY_MACHINE_PIN_MAKE_NEW mp_pin_make_new
#define MICROPY_PY_MACHINE_I2C (1)
#define MICROPY_PY_MACHINE_SPI (1)
#define MICROPY_PY_MACHINE_SPI_MSB (SPI_FIRSTBIT_MSB)
#define MICROPY_PY_MACHINE_SPI_LSB (SPI_FIRSTBIT_LSB)
#endif
#define MICROPY_HW_SOFTSPI_MIN_DELAY (0)
#define MICROPY_HW_SOFTSPI_MAX_BAUDRATE (HAL_RCC_GetSysClockFreq() / 48)
#define MICROPY_PY_UWEBSOCKET (MICROPY_PY_LWIP)
#define MICROPY_PY_WEBREPL (MICROPY_PY_LWIP)
#ifndef MICROPY_PY_FRAMEBUF
#define MICROPY_PY_FRAMEBUF (1)
#endif
#ifndef MICROPY_PY_USOCKET
#define MICROPY_PY_USOCKET (1)
#endif
#ifndef MICROPY_PY_NETWORK
#define MICROPY_PY_NETWORK (1)
#endif
#ifndef MICROPY_PY_ONEWIRE
#define MICROPY_PY_ONEWIRE (1)
#endif
// fatfs configuration used in ffconf.h
#define MICROPY_FATFS_ENABLE_LFN (1)
#define MICROPY_FATFS_LFN_CODE_PAGE 437 /* 1=SFN/ANSI 437=LFN/U.S.(OEM) */
#define MICROPY_FATFS_USE_LABEL (1)
#define MICROPY_FATFS_RPATH (2)
#define MICROPY_FATFS_MULTI_PARTITION (1)
// TODO these should be generic, not bound to a particular FS implementation
#if MICROPY_VFS_FAT
#define mp_type_fileio mp_type_vfs_fat_fileio
#define mp_type_textio mp_type_vfs_fat_textio
#elif MICROPY_VFS_LFS1
#define mp_type_fileio mp_type_vfs_lfs1_fileio
#define mp_type_textio mp_type_vfs_lfs1_textio
#elif MICROPY_VFS_LFS2
#define mp_type_fileio mp_type_vfs_lfs2_fileio
#define mp_type_textio mp_type_vfs_lfs2_textio
#endif
// use vfs's functions for import stat and builtin open
#define mp_import_stat mp_vfs_import_stat
#define mp_builtin_open mp_vfs_open
#define mp_builtin_open_obj mp_vfs_open_obj
// extra built in names to add to the global namespace
#define MICROPY_PORT_BUILTINS \
{ MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&mp_builtin_open_obj) },
// extra built in modules to add to the list of known ones
extern const struct _mp_obj_module_t machine_module;
extern const struct _mp_obj_module_t pyb_module;
extern const struct _mp_obj_module_t stm_module;
extern const struct _mp_obj_module_t mp_module_ubinascii;
extern const struct _mp_obj_module_t mp_module_ure;
extern const struct _mp_obj_module_t mp_module_uzlib;
extern const struct _mp_obj_module_t mp_module_ujson;
extern const struct _mp_obj_module_t mp_module_uheapq;
extern const struct _mp_obj_module_t mp_module_uhashlib;
extern const struct _mp_obj_module_t mp_module_uos;
extern const struct _mp_obj_module_t mp_module_utime;
extern const struct _mp_obj_module_t mp_module_usocket;
extern const struct _mp_obj_module_t mp_module_network;
extern const struct _mp_obj_module_t mp_module_onewire;
#if MICROPY_PY_PYB
#define PYB_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_pyb), MP_ROM_PTR(&pyb_module) },
#else
#define PYB_BUILTIN_MODULE
#endif
#if MICROPY_PY_STM
#define STM_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_stm), MP_ROM_PTR(&stm_module) },
#else
#define STM_BUILTIN_MODULE
#endif
#if MICROPY_PY_MACHINE
#define MACHINE_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_umachine), MP_ROM_PTR(&machine_module) },
#define MACHINE_BUILTIN_MODULE_CONSTANTS { MP_ROM_QSTR(MP_QSTR_machine), MP_ROM_PTR(&machine_module) },
#else
#define MACHINE_BUILTIN_MODULE
#define MACHINE_BUILTIN_MODULE_CONSTANTS
#endif
#if MICROPY_PY_UOS
#define UOS_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_uos), MP_ROM_PTR(&mp_module_uos) },
#else
#define UOS_BUILTIN_MODULE
#endif
#if MICROPY_PY_UTIME
#define UTIME_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_utime), MP_ROM_PTR(&mp_module_utime) },
#else
#define UTIME_BUILTIN_MODULE
#endif
#if MICROPY_PY_USOCKET && MICROPY_PY_LWIP
// usocket implementation provided by lwIP
#define SOCKET_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_usocket), MP_ROM_PTR(&mp_module_lwip) },
#elif MICROPY_PY_USOCKET
// usocket implementation provided by skeleton wrapper
#define SOCKET_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_usocket), MP_ROM_PTR(&mp_module_usocket) },
#else
// no usocket module
#define SOCKET_BUILTIN_MODULE
#endif
#if MICROPY_PY_NETWORK
#define NETWORK_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_network), MP_ROM_PTR(&mp_module_network) },
#else
#define NETWORK_BUILTIN_MODULE
#endif
#if MICROPY_PY_ONEWIRE
#define ONEWIRE_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR__onewire), MP_ROM_PTR(&mp_module_onewire) },
#else
#define ONEWIRE_BUILTIN_MODULE
#endif
#define MICROPY_PORT_BUILTIN_MODULES \
MACHINE_BUILTIN_MODULE \
PYB_BUILTIN_MODULE \
STM_BUILTIN_MODULE \
UOS_BUILTIN_MODULE \
UTIME_BUILTIN_MODULE \
SOCKET_BUILTIN_MODULE \
NETWORK_BUILTIN_MODULE \
ONEWIRE_BUILTIN_MODULE \
// extra constants
#define MICROPY_PORT_CONSTANTS \
MACHINE_BUILTIN_MODULE \
MACHINE_BUILTIN_MODULE_CONSTANTS \
PYB_BUILTIN_MODULE \
STM_BUILTIN_MODULE \
#define MP_STATE_PORT MP_STATE_VM
#if MICROPY_SSL_MBEDTLS
#define MICROPY_PORT_ROOT_POINTER_MBEDTLS void **mbedtls_memory;
#else
#define MICROPY_PORT_ROOT_POINTER_MBEDTLS
#endif
#if MICROPY_BLUETOOTH_NIMBLE
struct _mp_bluetooth_nimble_root_pointers_t;
struct _mp_bluetooth_nimble_malloc_t;
#define MICROPY_PORT_ROOT_POINTER_BLUETOOTH_NIMBLE struct _mp_bluetooth_nimble_malloc_t *bluetooth_nimble_memory; struct _mp_bluetooth_nimble_root_pointers_t *bluetooth_nimble_root_pointers;
#else
#define MICROPY_PORT_ROOT_POINTER_BLUETOOTH_NIMBLE
#endif
#if MICROPY_BLUETOOTH_BTSTACK
struct _mp_bluetooth_btstack_root_pointers_t;
#define MICROPY_PORT_ROOT_POINTER_BLUETOOTH_BTSTACK struct _mp_bluetooth_btstack_root_pointers_t *bluetooth_btstack_root_pointers;
#else
#define MICROPY_PORT_ROOT_POINTER_BLUETOOTH_BTSTACK
#endif
#ifndef MICROPY_BOARD_ROOT_POINTERS
#define MICROPY_BOARD_ROOT_POINTERS
#endif
#define MICROPY_PORT_ROOT_POINTERS \
const char *readline_hist[8]; \
\
mp_obj_t pyb_hid_report_desc; \
\
mp_obj_t pyb_config_main; \
\
mp_obj_t pyb_switch_callback; \
\
mp_obj_t pin_class_mapper; \
mp_obj_t pin_class_map_dict; \
\
mp_obj_t pyb_extint_callback[PYB_EXTI_NUM_VECTORS]; \
\
/* pointers to all Timer objects (if they have been created) */ \
struct _pyb_timer_obj_t *pyb_timer_obj_all[MICROPY_HW_MAX_TIMER]; \
\
/* stdio is repeated on this UART object if it's not null */ \
struct _pyb_uart_obj_t *pyb_stdio_uart; \
\
/* pointers to all UART objects (if they have been created) */ \
struct _pyb_uart_obj_t *pyb_uart_obj_all[MICROPY_HW_MAX_UART + MICROPY_HW_MAX_LPUART]; \
\
/* pointers to all CAN objects (if they have been created) */ \
struct _pyb_can_obj_t *pyb_can_obj_all[MICROPY_HW_MAX_CAN]; \
\
/* list of registered NICs */ \
mp_obj_list_t mod_network_nic_list; \
\
/* root pointers for sub-systems */ \
MICROPY_PORT_ROOT_POINTER_MBEDTLS \
MICROPY_PORT_ROOT_POINTER_BLUETOOTH_NIMBLE \
MICROPY_PORT_ROOT_POINTER_BLUETOOTH_BTSTACK \
\
/* root pointers defined by a board */ \
MICROPY_BOARD_ROOT_POINTERS \
// type definitions for the specific machine
#define MICROPY_MAKE_POINTER_CALLABLE(p) ((void *)((uint32_t)(p) | 1))
#define MP_SSIZE_MAX (0x7fffffff)
// Assume that if we already defined the obj repr then we also defined these items
#ifndef MICROPY_OBJ_REPR
#define UINT_FMT "%u"
#define INT_FMT "%d"
typedef int mp_int_t; // must be pointer size
typedef unsigned int mp_uint_t; // must be pointer size
#endif
typedef long mp_off_t;
// We have inlined IRQ functions for efficiency (they are generally
// 1 machine instruction).
//
// Note on IRQ state: you should not need to know the specific
// value of the state variable, but rather just pass the return
// value from disable_irq back to enable_irq. If you really need
// to know the machine-specific values, see irq.h.
static inline void enable_irq(mp_uint_t state) {
__set_PRIMASK(state);
}
static inline mp_uint_t disable_irq(void) {
mp_uint_t state = __get_PRIMASK();
__disable_irq();
return state;
}
#define MICROPY_BEGIN_ATOMIC_SECTION() disable_irq()
#define MICROPY_END_ATOMIC_SECTION(state) enable_irq(state)
#if MICROPY_PY_THREAD
#define MICROPY_EVENT_POLL_HOOK \
do { \
extern void mp_handle_pending(bool); \
mp_handle_pending(true); \
if (pyb_thread_enabled) { \
MP_THREAD_GIL_EXIT(); \
pyb_thread_yield(); \
MP_THREAD_GIL_ENTER(); \
} else { \
__WFI(); \
} \
} while (0);
#define MICROPY_THREAD_YIELD() pyb_thread_yield()
#else
#define MICROPY_EVENT_POLL_HOOK \
do { \
extern void mp_handle_pending(bool); \
mp_handle_pending(true); \
__WFI(); \
} while (0);
#define MICROPY_THREAD_YIELD()
#endif
// For regular code that wants to prevent "background tasks" from running.
// These background tasks (LWIP, Bluetooth) run in PENDSV context.
#define MICROPY_PY_PENDSV_ENTER uint32_t atomic_state = raise_irq_pri(IRQ_PRI_PENDSV);
#define MICROPY_PY_PENDSV_REENTER atomic_state = raise_irq_pri(IRQ_PRI_PENDSV);
#define MICROPY_PY_PENDSV_EXIT restore_irq_pri(atomic_state);
// Prevent the "LWIP task" from running.
#define MICROPY_PY_LWIP_ENTER MICROPY_PY_PENDSV_ENTER
#define MICROPY_PY_LWIP_REENTER MICROPY_PY_PENDSV_REENTER
#define MICROPY_PY_LWIP_EXIT MICROPY_PY_PENDSV_EXIT
#if MICROPY_PY_BLUETOOTH_USE_SYNC_EVENTS
// Bluetooth code only runs in the scheduler, no locking/mutex required.
#define MICROPY_PY_BLUETOOTH_ENTER uint32_t atomic_state = 0;
#define MICROPY_PY_BLUETOOTH_EXIT (void)atomic_state;
#else
// When async events are enabled, need to prevent PendSV execution racing with
// scheduler execution.
#define MICROPY_PY_BLUETOOTH_ENTER MICROPY_PY_PENDSV_ENTER
#define MICROPY_PY_BLUETOOTH_EXIT MICROPY_PY_PENDSV_EXIT
#endif
// We need an implementation of the log2 function which is not a macro
#define MP_NEED_LOG2 (1)
// We need to provide a declaration/definition of alloca()
#include <alloca.h>
// Needed for MICROPY_PY_URANDOM_SEED_INIT_FUNC.
uint32_t rng_get(void);
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