circuitpython/shared-bindings/supervisor/__init__.c

325 lines
14 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016-2017 Scott Shawcroft for Adafruit Industries
*
* 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.
*/
#include <string.h>
#include "py/obj.h"
#include "py/runtime.h"
#include "py/reload.h"
#include "py/objstr.h"
#include "shared/runtime/interrupt_char.h"
#include "supervisor/shared/autoreload.h"
#include "supervisor/shared/bluetooth/bluetooth.h"
#include "supervisor/shared/status_leds.h"
#include "supervisor/shared/stack.h"
#include "supervisor/shared/traceback.h"
#include "supervisor/shared/translate.h"
#include "supervisor/shared/workflow.h"
#include "shared-bindings/microcontroller/__init__.h"
#include "shared-bindings/supervisor/__init__.h"
#include "shared-bindings/time/__init__.h"
#include "shared-bindings/supervisor/Runtime.h"
//| """Supervisor settings"""
//|
//| runtime: Runtime
//| """Runtime information, such as ``runtime.serial_connected``
//| (USB serial connection status).
//| This object is the sole instance of `supervisor.Runtime`."""
//|
//| def enable_autoreload() -> None:
//| """Enable autoreload based on USB file write activity."""
//| ...
//|
STATIC mp_obj_t supervisor_enable_autoreload(void) {
autoreload_enable();
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(supervisor_enable_autoreload_obj, supervisor_enable_autoreload);
//| def disable_autoreload() -> None:
//| """Disable autoreload based on USB file write activity until
//| `enable_autoreload` is called."""
//| ...
//|
STATIC mp_obj_t supervisor_disable_autoreload(void) {
autoreload_disable();
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(supervisor_disable_autoreload_obj, supervisor_disable_autoreload);
//| def set_rgb_status_brightness(brightness: int) -> None:
//| """Set brightness of status neopixel from 0-255
//| `set_rgb_status_brightness` is called."""
//| ...
//|
STATIC mp_obj_t supervisor_set_rgb_status_brightness(mp_obj_t lvl) {
// This must be int. If cast to uint8_t first, will never raise a ValueError.
int brightness_int = mp_obj_get_int(lvl);
if (brightness_int < 0 || brightness_int > 255) {
mp_raise_ValueError(translate("Brightness must be between 0 and 255"));
}
set_status_brightness((uint8_t)brightness_int);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(supervisor_set_rgb_status_brightness_obj, supervisor_set_rgb_status_brightness);
//| def reload() -> None:
//| """Reload the main Python code and run it (equivalent to hitting Ctrl-D at the REPL)."""
//| ...
//|
STATIC mp_obj_t supervisor_reload(void) {
reload_requested = true;
supervisor_set_run_reason(RUN_REASON_SUPERVISOR_RELOAD);
mp_raise_reload_exception();
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(supervisor_reload_obj, supervisor_reload);
//| def set_next_stack_limit(size: int) -> None:
//| """Set the size of the stack for the next vm run. If its too large, the default will be used."""
//| ...
//|
STATIC mp_obj_t supervisor_set_next_stack_limit(mp_obj_t size_obj) {
mp_int_t size = mp_obj_get_int(size_obj);
if (size < 256) {
mp_raise_ValueError(translate("Stack size must be at least 256"));
}
set_next_stack_size(size);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(supervisor_set_next_stack_limit_obj, supervisor_set_next_stack_limit);
//| def set_next_code_file(filename: Optional[str], *, reload_on_success : bool = False, reload_on_error: bool = False, sticky_on_success: bool = False, sticky_on_error: bool = False, sticky_on_reload: bool = False) -> None:
//| """Set what file to run on the next vm run.
//|
//| When not ``None``, the given ``filename`` is inserted at the front of the usual ['code.py',
//| 'main.py'] search sequence.
//|
//| The optional keyword arguments specify what happens after the specified file has run:
//|
//| ``sticky_on_…`` determine whether the newly set filename and options stay in effect: If
//| True, further runs will continue to run that file (unless it says otherwise by calling
//| ``set_next_code_filename()`` itself). If False, the settings will only affect one run and
//| revert to the standard code.py/main.py afterwards.
//|
//| ``reload_on_…`` determine how to continue: If False, wait in the usual "Code done running.
//| Waiting for reload. / Press any key to enter the REPL. Use CTRL-D to reload." state. If
//| True, reload immediately as if CTRL-D was pressed.
//|
//| ``…_on_success`` take effect when the program runs to completion or calls ``sys.exit()``.
//|
//| ``…_on_error`` take effect when the program exits with an exception, including the
//| KeyboardInterrupt caused by CTRL-C.
//|
//| ``…_on_reload`` take effect when the program is interrupted by files being written to the USB
//| drive (auto-reload) or when it calls ``supervisor.reload()``.
//|
//| These settings are stored in RAM, not in persistent memory, and will therefore only affect
//| soft reloads. Powering off or resetting the device will always revert to standard settings.
//|
//| When called multiple times in the same run, only the last call takes effect, replacing any
//| settings made by previous ones. This is the main use of passing ``None`` as a filename: to
//| reset to the standard search sequence."""
//| ...
//|
STATIC mp_obj_t supervisor_set_next_code_file(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_filename, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_rom_obj = mp_const_none} },
{ MP_QSTR_reload_on_success, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_reload_on_error, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_sticky_on_success, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_sticky_on_error, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_sticky_on_reload, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
};
struct {
mp_arg_val_t filename;
mp_arg_val_t reload_on_success;
mp_arg_val_t reload_on_error;
mp_arg_val_t sticky_on_success;
mp_arg_val_t sticky_on_error;
mp_arg_val_t sticky_on_reload;
} args;
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, (mp_arg_val_t *)&args);
if (!mp_obj_is_str_or_bytes(args.filename.u_obj) && args.filename.u_obj != mp_const_none) {
mp_raise_TypeError(translate("argument has wrong type"));
}
if (args.filename.u_obj == mp_const_none) {
args.filename.u_obj = mp_const_empty_bytes;
}
uint8_t options = 0;
if (args.reload_on_success.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_SUCCESS;
}
if (args.reload_on_error.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_ERROR;
}
if (args.sticky_on_success.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_SUCCESS;
}
if (args.sticky_on_error.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_ERROR;
}
if (args.sticky_on_reload.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_RELOAD;
}
size_t len;
const char *filename = mp_obj_str_get_data(args.filename.u_obj, &len);
free_memory(next_code_allocation);
if (options != 0 || len != 0) {
next_code_allocation = allocate_memory(align32_size(sizeof(next_code_info_t) + len + 1), false, true);
if (next_code_allocation == NULL) {
m_malloc_fail(sizeof(next_code_info_t) + len + 1);
}
next_code_info_t *next_code = (next_code_info_t *)next_code_allocation->ptr;
next_code->options = options | SUPERVISOR_NEXT_CODE_OPT_NEWLY_SET;
memcpy(&next_code->filename, filename, len);
next_code->filename[len] = '\0';
} else {
next_code_allocation = NULL;
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(supervisor_set_next_code_file_obj, 0, supervisor_set_next_code_file);
//| def ticks_ms() -> int:
//| """Return the time in milliseconds since an unspecified reference point, wrapping after 2**29ms.
//|
//| The value is initialized so that the first overflow occurs about 65
//| seconds after power-on, making it feasible to check that your program
//| works properly around an overflow.
//|
//| The wrap value was chosen so that it is always possible to add
//| or subtract two `ticks_ms` values without overflow on a board without
//| long ints (or without allocating any long integer objects, on boards with
//| long ints).
//|
//| This ticks value comes from a low-accuracy clock internal to the
//| microcontroller, just like `time.monotonic`. Due to its low accuracy
//| and the fact that it "wraps around" every few days, it is intended
//| for working with short term events like advancing an LED animation,
//| not for long term events like counting down the time until a holiday.
//|
//| Addition, subtraction, and comparison of ticks values can be done
//| with routines like the following::
//|
//| _TICKS_PERIOD = const(1<<29)
//| _TICKS_MAX = const(_TICKS_PERIOD-1)
//| _TICKS_HALFPERIOD = const(_TICKS_PERIOD//2)
//|
//| def ticks_add(ticks, delta):
//| "Add a delta to a base number of ticks, performing wraparound at 2**29ms."
//| return (a + b) % _TICKS_PERIOD
//|
//| def ticks_diff(ticks1, ticks2):
//| "Compute the signed difference between two ticks values, assuming that they are within 2**28 ticks"
//| diff = (ticks1 - ticks2) & _TICKS_MAX
//| diff = ((diff + _TICKS_HALFPERIOD) & _TICKS_MAX) - _TICKS_HALFPERIOD
//| return diff
//|
//| def ticks_less(ticks1, ticks2):
//| "Return true iff ticks1 is less than ticks2, assuming that they are within 2**28 ticks"
//| return ticks_diff(ticks1, ticks2) < 0
//|
//| """
//| ...
mp_obj_t supervisor_ticks_ms(void) {
uint64_t ticks_ms = common_hal_time_monotonic_ms();
return mp_obj_new_int((ticks_ms + 0x1fff0000) % (1 << 29));
}
MP_DEFINE_CONST_FUN_OBJ_0(supervisor_ticks_ms_obj, supervisor_ticks_ms);
//| def get_previous_traceback() -> Optional[str]:
//| """If the last vm run ended with an exception (including the KeyboardInterrupt caused by
//| CTRL-C), returns the traceback as a string.
//| Otherwise, returns ``None``.
//|
//| An exception traceback is only preserved over a soft reload, a hard reset clears it.
//|
//| Only code (main or boot) runs are considered, not REPL runs."""
//| ...
//|
STATIC mp_obj_t supervisor_get_previous_traceback(void) {
if (prev_traceback_allocation) {
size_t len = strlen((const char *)prev_traceback_allocation->ptr);
if (len > 0) {
mp_obj_str_t *o = m_new_obj(mp_obj_str_t);
o->base.type = &mp_type_str;
o->len = len;
// callers probably aren't going to compare this string, so skip computing the hash
o->hash = 0;
o->data = (const byte *)prev_traceback_allocation->ptr;
return MP_OBJ_FROM_PTR(o);
}
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(supervisor_get_previous_traceback_obj, supervisor_get_previous_traceback);
//| def disable_ble_workflow() -> None:
//| """Disable ble workflow until a reset. This prevents BLE advertising outside of the VM and
//| the services used for it."""
//| ...
//|
STATIC mp_obj_t supervisor_disable_ble_workflow(void) {
#if !CIRCUITPY_BLE_FILE_SERVICE && !CIRCUITPY_SERIAL_BLE
mp_raise_NotImplementedError(NULL);
#else
supervisor_bluetooth_disable_workflow();
#endif
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(supervisor_disable_ble_workflow_obj, supervisor_disable_ble_workflow);
STATIC const mp_rom_map_elem_t supervisor_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_supervisor) },
{ MP_ROM_QSTR(MP_QSTR_enable_autoreload), MP_ROM_PTR(&supervisor_enable_autoreload_obj) },
{ MP_ROM_QSTR(MP_QSTR_disable_autoreload), MP_ROM_PTR(&supervisor_disable_autoreload_obj) },
{ MP_ROM_QSTR(MP_QSTR_set_rgb_status_brightness), MP_ROM_PTR(&supervisor_set_rgb_status_brightness_obj) },
{ MP_ROM_QSTR(MP_QSTR_runtime), MP_ROM_PTR(&common_hal_supervisor_runtime_obj) },
{ MP_ROM_QSTR(MP_QSTR_reload), MP_ROM_PTR(&supervisor_reload_obj) },
{ MP_ROM_QSTR(MP_QSTR_RunReason), MP_ROM_PTR(&supervisor_run_reason_type) },
{ MP_ROM_QSTR(MP_QSTR_set_next_stack_limit), MP_ROM_PTR(&supervisor_set_next_stack_limit_obj) },
{ MP_ROM_QSTR(MP_QSTR_set_next_code_file), MP_ROM_PTR(&supervisor_set_next_code_file_obj) },
{ MP_ROM_QSTR(MP_QSTR_ticks_ms), MP_ROM_PTR(&supervisor_ticks_ms_obj) },
{ MP_ROM_QSTR(MP_QSTR_get_previous_traceback), MP_ROM_PTR(&supervisor_get_previous_traceback_obj) },
{ MP_ROM_QSTR(MP_QSTR_disable_ble_workflow), MP_ROM_PTR(&supervisor_disable_ble_workflow_obj) },
};
STATIC MP_DEFINE_CONST_DICT(supervisor_module_globals, supervisor_module_globals_table);
const mp_obj_module_t supervisor_module = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&supervisor_module_globals,
};
MP_REGISTER_MODULE(MP_QSTR_supervisor, supervisor_module, CIRCUITPY_SUPERVISOR);