diff options
| -rw-r--r-- | ports/alif/alif.mk | 1 | ||||
| -rw-r--r-- | ports/alif/irq.h | 1 | ||||
| -rw-r--r-- | ports/alif/machine_rtc.c | 109 | ||||
| -rw-r--r-- | ports/alif/modmachine.c | 1 |
4 files changed, 112 insertions, 0 deletions
diff --git a/ports/alif/alif.mk b/ports/alif/alif.mk index 63003b58a..aa2451d7a 100644 --- a/ports/alif/alif.mk +++ b/ports/alif/alif.mk @@ -119,6 +119,7 @@ SRC_C = \ machine_pin.c \ machine_i2c.c \ machine_spi.c \ + machine_rtc.c \ main.c \ modalif.c \ mphalport.c \ diff --git a/ports/alif/irq.h b/ports/alif/irq.h index 59dbce970..ed454adcb 100644 --- a/ports/alif/irq.h +++ b/ports/alif/irq.h @@ -48,6 +48,7 @@ #define IRQ_PRI_USB NVIC_EncodePriority(NVIC_PRIORITYGROUP_7, 7, 0) #define IRQ_PRI_HWSEM NVIC_EncodePriority(NVIC_PRIORITYGROUP_7, 8, 0) #define IRQ_PRI_GPU NVIC_EncodePriority(NVIC_PRIORITYGROUP_7, 10, 0) +#define IRQ_PRI_RTC NVIC_EncodePriority(NVIC_PRIORITYGROUP_7, 100, 0) #define IRQ_PRI_PENDSV NVIC_EncodePriority(NVIC_PRIORITYGROUP_7, 127, 0) // these states correspond to values from query_irq, enable_irq and disable_irq diff --git a/ports/alif/machine_rtc.c b/ports/alif/machine_rtc.c new file mode 100644 index 000000000..6473d1d80 --- /dev/null +++ b/ports/alif/machine_rtc.c @@ -0,0 +1,109 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2024-2025 OpenMV LLC. + * + * 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 "py/runtime.h" +#include "py/mphal.h" +#include "py/mperrno.h" +#include "extmod/modmachine.h" +#include "rtc.h" +#include "sys_ctrl_rtc.h" + +typedef struct _machine_rtc_obj_t { + mp_obj_base_t base; + LPRTC_Type *rtc; +} machine_rtc_obj_t; + +// Singleton RTC object. +static const machine_rtc_obj_t machine_rtc = {{&machine_rtc_type}, (LPRTC_Type *)LPRTC_BASE}; + +void LPRTC_IRQHandler(void) { + lprtc_interrupt_ack(machine_rtc.rtc); + lprtc_interrupt_disable(machine_rtc.rtc); +} + +static mp_obj_t machine_rtc_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) { + const machine_rtc_obj_t *self = &machine_rtc; + + // Check arguments. + mp_arg_check_num(n_args, n_kw, 0, 0, false); + + enable_lprtc_clk(); + lprtc_prescaler_disable(self->rtc); + lprtc_counter_wrap_disable(self->rtc); + lprtc_interrupt_disable(self->rtc); + lprtc_interrupt_unmask(self->rtc); + + NVIC_SetPriority(LPRTC_IRQ_IRQn, IRQ_PRI_RTC); + NVIC_ClearPendingIRQ(LPRTC_IRQ_IRQn); + NVIC_EnableIRQ(LPRTC_IRQ_IRQn); + return MP_OBJ_FROM_PTR(self); +} + +static mp_obj_t machine_rtc_alarm(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { + enum { ARG_id, ARG_time, ARG_repeat }; + + static const mp_arg_t allowed_args[] = { + { MP_QSTR_id, MP_ARG_INT, {.u_int = 0} }, + { MP_QSTR_time, MP_ARG_OBJ, {.u_obj = mp_const_none} }, + { MP_QSTR_repeat, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} }, + }; + + machine_rtc_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]); + + // Parse args. + 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(args), allowed_args, args); + + if (mp_obj_is_int(args[ARG_time].u_obj)) { + uint32_t seconds = mp_obj_get_int(args[1].u_obj) / 1000; + + lprtc_counter_disable(self->rtc); + lprtc_load_count(self->rtc, 1); + lprtc_load_counter_match_register(self->rtc, seconds * 32768); + + lprtc_interrupt_ack(self->rtc); + lprtc_interrupt_enable(self->rtc); + lprtc_counter_enable(self->rtc); + } else { + mp_raise_ValueError(MP_ERROR_TEXT("invalid argument(s)")); + } + + return mp_const_none; +} +static MP_DEFINE_CONST_FUN_OBJ_KW(machine_rtc_alarm_obj, 1, machine_rtc_alarm); + +static const mp_rom_map_elem_t machine_rtc_locals_dict_table[] = { + { MP_ROM_QSTR(MP_QSTR_alarm), MP_ROM_PTR(&machine_rtc_alarm_obj) }, +}; +static MP_DEFINE_CONST_DICT(machine_rtc_locals_dict, machine_rtc_locals_dict_table); + +MP_DEFINE_CONST_OBJ_TYPE( + machine_rtc_type, + MP_QSTR_RTC, + MP_TYPE_FLAG_NONE, + make_new, machine_rtc_make_new, + locals_dict, &machine_rtc_locals_dict + ); diff --git a/ports/alif/modmachine.c b/ports/alif/modmachine.c index 98d7bffba..9868abbee 100644 --- a/ports/alif/modmachine.c +++ b/ports/alif/modmachine.c @@ -35,6 +35,7 @@ extern void dcd_uninit(void); #define MICROPY_PY_MACHINE_EXTRA_GLOBALS \ { MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&machine_pin_type) }, \ { MP_ROM_QSTR(MP_QSTR_Timer), MP_ROM_PTR(&machine_timer_type) }, \ + { MP_ROM_QSTR(MP_QSTR_RTC), MP_ROM_PTR(&machine_rtc_type) }, \ static void mp_machine_idle(void) { mp_event_wait_indefinite(); |