diff options
Diffstat (limited to 'esp8266/modpybrtc.c')
-rw-r--r-- | esp8266/modpybrtc.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/esp8266/modpybrtc.c b/esp8266/modpybrtc.c deleted file mode 100644 index d69fc47a8e..0000000000 --- a/esp8266/modpybrtc.c +++ /dev/null @@ -1,273 +0,0 @@ -/* - * This file is part of the Micro Python project, http://micropython.org/ - * - * The MIT License (MIT) - * - * Copyright (c) 2015 Josef Gajdusek - * - * 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 <stdio.h> -#include <string.h> - -#include "py/nlr.h" -#include "py/obj.h" -#include "py/runtime.h" -#include "timeutils.h" -#include "user_interface.h" -#include "modpyb.h" - -typedef struct _pyb_rtc_obj_t { - mp_obj_base_t base; -} pyb_rtc_obj_t; - -#define MEM_MAGIC 0x75507921 -#define MEM_DELTA_ADDR 64 -#define MEM_CAL_ADDR (MEM_DELTA_ADDR + 2) -#define MEM_USER_MAGIC_ADDR (MEM_CAL_ADDR + 1) -#define MEM_USER_LEN_ADDR (MEM_USER_MAGIC_ADDR + 1) -#define MEM_USER_DATA_ADDR (MEM_USER_LEN_ADDR + 1) -#define MEM_USER_MAXLEN (512 - (MEM_USER_DATA_ADDR - MEM_DELTA_ADDR) * 4) - -// singleton RTC object -STATIC const pyb_rtc_obj_t pyb_rtc_obj = {{&pyb_rtc_type}}; - -// ALARM0 state -uint32_t pyb_rtc_alarm0_wake; // see MACHINE_WAKE_xxx constants -uint64_t pyb_rtc_alarm0_expiry; // in microseconds - -// RTC overflow checking -STATIC uint32_t rtc_last_ticks; - -void mp_hal_rtc_init(void) { - uint32_t magic; - - system_rtc_mem_read(MEM_USER_MAGIC_ADDR, &magic, sizeof(magic)); - if (magic != MEM_MAGIC) { - magic = MEM_MAGIC; - system_rtc_mem_write(MEM_USER_MAGIC_ADDR, &magic, sizeof(magic)); - uint32_t cal = system_rtc_clock_cali_proc(); - int64_t delta = 0; - system_rtc_mem_write(MEM_CAL_ADDR, &cal, sizeof(cal)); - system_rtc_mem_write(MEM_DELTA_ADDR, &delta, sizeof(delta)); - uint32_t len = 0; - system_rtc_mem_write(MEM_USER_LEN_ADDR, &len, sizeof(len)); - } - // system_get_rtc_time() is always 0 after reset/deepsleep - rtc_last_ticks = system_get_rtc_time(); - - // reset ALARM0 state - pyb_rtc_alarm0_wake = 0; - pyb_rtc_alarm0_expiry = 0; -} - -STATIC mp_obj_t pyb_rtc_make_new(const mp_obj_type_t *type, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { - // check arguments - mp_arg_check_num(n_args, n_kw, 0, 0, false); - - // return constant object - return (mp_obj_t)&pyb_rtc_obj; -} - -void pyb_rtc_set_us_since_2000(uint64_t nowus) { - uint32_t cal = system_rtc_clock_cali_proc(); - // Save RTC ticks for overflow detection. - rtc_last_ticks = system_get_rtc_time(); - int64_t delta = nowus - (((uint64_t)rtc_last_ticks * cal) >> 12); - - // As the calibration value jitters quite a bit, to make the - // clock at least somewhat practially usable, we need to store it - system_rtc_mem_write(MEM_CAL_ADDR, &cal, sizeof(cal)); - system_rtc_mem_write(MEM_DELTA_ADDR, &delta, sizeof(delta)); -}; - -uint64_t pyb_rtc_get_us_since_2000() { - uint32_t cal; - int64_t delta; - uint32_t rtc_ticks; - - system_rtc_mem_read(MEM_CAL_ADDR, &cal, sizeof(cal)); - system_rtc_mem_read(MEM_DELTA_ADDR, &delta, sizeof(delta)); - - // ESP-SDK system_get_rtc_time() only returns uint32 and therefore - // overflow about every 7:45h. Thus, we have to check for - // overflow and handle it. - rtc_ticks = system_get_rtc_time(); - if (rtc_ticks < rtc_last_ticks) { - // Adjust delta because of RTC overflow. - delta += (uint64_t)cal << 20; - system_rtc_mem_write(MEM_DELTA_ADDR, &delta, sizeof(delta)); - } - rtc_last_ticks = rtc_ticks; - - return (((uint64_t)rtc_ticks * cal) >> 12) + delta; -}; - -void rtc_prepare_deepsleep(uint64_t sleep_us) { - // RTC time will reset at wake up. Let's be preared for this. - int64_t delta = pyb_rtc_get_us_since_2000() + sleep_us; - system_rtc_mem_write(MEM_DELTA_ADDR, &delta, sizeof(delta)); -} - -STATIC mp_obj_t pyb_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) { - if (n_args == 1) { - // Get time - uint64_t msecs = pyb_rtc_get_us_since_2000() / 1000; - - timeutils_struct_time_t tm; - timeutils_seconds_since_2000_to_struct_time(msecs / 1000, &tm); - - mp_obj_t tuple[8] = { - mp_obj_new_int(tm.tm_year), - mp_obj_new_int(tm.tm_mon), - mp_obj_new_int(tm.tm_mday), - mp_obj_new_int(tm.tm_wday), - mp_obj_new_int(tm.tm_hour), - mp_obj_new_int(tm.tm_min), - mp_obj_new_int(tm.tm_sec), - mp_obj_new_int(msecs % 1000) - }; - - return mp_obj_new_tuple(8, tuple); - } else { - // Set time - mp_obj_t *items; - mp_obj_get_array_fixed_n(args[1], 8, &items); - - pyb_rtc_set_us_since_2000( - ((uint64_t)timeutils_seconds_since_2000( - mp_obj_get_int(items[0]), - mp_obj_get_int(items[1]), - mp_obj_get_int(items[2]), - mp_obj_get_int(items[4]), - mp_obj_get_int(items[5]), - mp_obj_get_int(items[6])) * 1000 + mp_obj_get_int(items[7])) * 1000); - - return mp_const_none; - } -} -STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_rtc_datetime_obj, 1, 2, pyb_rtc_datetime); - -STATIC mp_obj_t pyb_rtc_memory(mp_uint_t n_args, const mp_obj_t *args) { - uint8_t rtcram[MEM_USER_MAXLEN]; - uint32_t len; - - if (n_args == 1) { - // read RTC memory - - system_rtc_mem_read(MEM_USER_LEN_ADDR, &len, sizeof(len)); - system_rtc_mem_read(MEM_USER_DATA_ADDR, rtcram, len + (4 - len % 4)); - - return mp_obj_new_bytes(rtcram, len); - } else { - // write RTC memory - - mp_buffer_info_t bufinfo; - mp_get_buffer_raise(args[1], &bufinfo, MP_BUFFER_READ); - - if (bufinfo.len > MEM_USER_MAXLEN) { - nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, - "buffer too long")); - } - - len = bufinfo.len; - system_rtc_mem_write(MEM_USER_LEN_ADDR, &len, sizeof(len)); - - int i = 0; - for (; i < bufinfo.len; i++) { - rtcram[i] = ((uint8_t *)bufinfo.buf)[i]; - } - - system_rtc_mem_write(MEM_USER_DATA_ADDR, rtcram, len + (4 - len % 4)); - - return mp_const_none; - } - -} -STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_rtc_memory_obj, 1, 2, pyb_rtc_memory); - -STATIC mp_obj_t pyb_rtc_alarm(mp_obj_t self_in, mp_obj_t alarm_id, mp_obj_t time_in) { - (void)self_in; // unused - - // check we want alarm0 - if (mp_obj_get_int(alarm_id) != 0) { - nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "invalid alarm")); - } - - // set expiry time (in microseconds) - pyb_rtc_alarm0_expiry = pyb_rtc_get_us_since_2000() + (uint64_t)mp_obj_get_int(time_in) * 1000; - - return mp_const_none; - -} -STATIC MP_DEFINE_CONST_FUN_OBJ_3(pyb_rtc_alarm_obj, pyb_rtc_alarm); - -STATIC mp_obj_t pyb_rtc_alarm_left(size_t n_args, const mp_obj_t *args) { - // check we want alarm0 - if (n_args > 1 && mp_obj_get_int(args[1]) != 0) { - mp_raise_ValueError("invalid alarm"); - } - - uint64_t now = pyb_rtc_get_us_since_2000(); - if (pyb_rtc_alarm0_expiry <= now) { - return MP_OBJ_NEW_SMALL_INT(0); - } else { - return mp_obj_new_int((pyb_rtc_alarm0_expiry - now) / 1000); - } -} -STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_rtc_alarm_left_obj, 1, 2, pyb_rtc_alarm_left); - -STATIC mp_obj_t pyb_rtc_irq(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { - enum { ARG_trigger, ARG_wake }; - static const mp_arg_t allowed_args[] = { - { MP_QSTR_trigger, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} }, - { MP_QSTR_wake, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} }, - }; - mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; - mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); - - // check we want alarm0 - if (args[ARG_trigger].u_int != 0) { - nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "invalid alarm")); - } - - // set the wake value - pyb_rtc_alarm0_wake = args[ARG_wake].u_int; - - return mp_const_none; -} -STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_rtc_irq_obj, 1, pyb_rtc_irq); - -STATIC const mp_map_elem_t pyb_rtc_locals_dict_table[] = { - { MP_OBJ_NEW_QSTR(MP_QSTR_datetime), (mp_obj_t)&pyb_rtc_datetime_obj }, - { MP_OBJ_NEW_QSTR(MP_QSTR_memory), (mp_obj_t)&pyb_rtc_memory_obj }, - { MP_OBJ_NEW_QSTR(MP_QSTR_alarm), (mp_obj_t)&pyb_rtc_alarm_obj }, - { MP_OBJ_NEW_QSTR(MP_QSTR_alarm_left), (mp_obj_t)&pyb_rtc_alarm_left_obj }, - { MP_OBJ_NEW_QSTR(MP_QSTR_irq), (mp_obj_t)&pyb_rtc_irq_obj }, - { MP_OBJ_NEW_QSTR(MP_QSTR_ALARM0), MP_OBJ_NEW_SMALL_INT(0) }, -}; -STATIC MP_DEFINE_CONST_DICT(pyb_rtc_locals_dict, pyb_rtc_locals_dict_table); - -const mp_obj_type_t pyb_rtc_type = { - { &mp_type_type }, - .name = MP_QSTR_RTC, - .make_new = pyb_rtc_make_new, - .locals_dict = (mp_obj_t)&pyb_rtc_locals_dict, -}; |