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micropython/ports/mimxrt/modmachine.c
Damien George 5b4a2baff6 extmod/machine_uart: Factor ports' UART Python bindings to common code. 
This is a code factoring to have the Python bindings in one location, and
all the ports use those same bindings.  For all ports except the two listed
below there is no functional change.

The nrf port has UART.sendbreak() removed, but this method previously did
nothing.

The zephyr port has the following methods added:
- UART.init(): supports setting timeout and timeout_char.
- UART.deinit(): does nothing, just returns None.
- UART.flush(): raises OSError(EINVAL) because it's not implemented.
- UART.any() and UART.txdone(): raise NotImplementedError.

Signed-off-by: Damien George <damien@micropython.org>
2023-10-26 10:46:42 +11:00

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
* Copyright (c) 2020 Jim Mussared
*
* 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 "drivers/dht/dht.h"
#include "extmod/machine_bitstream.h"
#include "extmod/machine_mem.h"
#include "extmod/machine_i2c.h"
#include "extmod/machine_pulse.h"
#include "extmod/machine_signal.h"
#include "extmod/machine_spi.h"
#include "extmod/modmachine.h"
#include "shared/runtime/pyexec.h"
#include "led.h"
#include "pin.h"
#include "modmachine.h"
#include "fsl_gpc.h"
#ifdef MIMXRT117x_SERIES
#include "fsl_soc_src.h"
#else
#include "fsl_src.h"
#endif
#include "fsl_wdog.h"
#if FSL_FEATURE_BOOT_ROM_HAS_ROMAPI
#include "fsl_romapi.h"
#endif
#if MICROPY_PY_MACHINE
#include CPU_HEADER_H
typedef enum {
MP_PWRON_RESET = 1,
MP_HARD_RESET,
MP_WDT_RESET,
MP_DEEPSLEEP_RESET,
MP_SOFT_RESET
} reset_reason_t;
STATIC mp_obj_t machine_unique_id(void) {
unsigned char id[8];
mp_hal_get_unique_id(id);
return mp_obj_new_bytes(id, sizeof(id));
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_unique_id_obj, machine_unique_id);
STATIC mp_obj_t machine_soft_reset(void) {
pyexec_system_exit = PYEXEC_FORCED_EXIT;
mp_raise_type(&mp_type_SystemExit);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_soft_reset_obj, machine_soft_reset);
STATIC mp_obj_t machine_reset(void) {
WDOG_TriggerSystemSoftwareReset(WDOG1);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_obj, machine_reset);
STATIC mp_obj_t machine_reset_cause(void) {
#ifdef MIMXRT117x_SERIES
uint32_t user_reset_flag = kSRC_M7CoreIppUserResetFlag;
#else
uint32_t user_reset_flag = kSRC_IppUserResetFlag;
#endif
if (SRC->SRSR & user_reset_flag) {
return MP_OBJ_NEW_SMALL_INT(MP_DEEPSLEEP_RESET);
}
uint16_t reset_cause =
WDOG_GetStatusFlags(WDOG1) & (kWDOG_PowerOnResetFlag | kWDOG_TimeoutResetFlag | kWDOG_SoftwareResetFlag);
if (reset_cause == kWDOG_PowerOnResetFlag) {
reset_cause = MP_PWRON_RESET;
} else if (reset_cause == kWDOG_TimeoutResetFlag) {
reset_cause = MP_WDT_RESET;
} else {
reset_cause = MP_SOFT_RESET;
}
return MP_OBJ_NEW_SMALL_INT(reset_cause);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_cause_obj, machine_reset_cause);
STATIC mp_obj_t machine_freq(void) {
return MP_OBJ_NEW_SMALL_INT(mp_hal_get_cpu_freq());
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_freq_obj, machine_freq);
STATIC mp_obj_t machine_idle(void) {
MICROPY_EVENT_POLL_HOOK;
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_idle_obj, machine_idle);
STATIC mp_obj_t machine_deepsleep(size_t n_args, const mp_obj_t *args) {
if (n_args != 0) {
mp_int_t seconds = mp_obj_get_int(args[0]) / 1000;
if (seconds > 0) {
machine_rtc_alarm_helper(seconds, false);
#ifdef MIMXRT117x_SERIES
GPC_CM_EnableIrqWakeup(GPC_CPU_MODE_CTRL_0, SNVS_HP_NON_TZ_IRQn, true);
#else
GPC_EnableIRQ(GPC, SNVS_HP_WRAPPER_IRQn);
#endif
}
}
#ifdef MIMXRT117x_SERIES
machine_pin_config(&pin_WAKEUP_DIG, PIN_MODE_IT_RISING, PIN_PULL_DISABLED, PIN_DRIVE_OFF, 0, PIN_AF_MODE_ALT5);
GPC_CM_EnableIrqWakeup(GPC_CPU_MODE_CTRL_0, GPIO13_Combined_0_31_IRQn, true);
#elif defined IOMUXC_SNVS_WAKEUP_GPIO5_IO00
machine_pin_config(&pin_WAKEUP, PIN_MODE_IT_RISING, PIN_PULL_DISABLED, PIN_DRIVE_OFF, 0, PIN_AF_MODE_ALT5);
GPC_EnableIRQ(GPC, GPIO5_Combined_0_15_IRQn);
#endif
SNVS->LPCR |= SNVS_LPCR_TOP_MASK;
while (true) {
;
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_deepsleep_obj, 0, 1, machine_deepsleep);
STATIC mp_obj_t machine_disable_irq(void) {
uint32_t state = MICROPY_BEGIN_ATOMIC_SECTION();
return mp_obj_new_int(state);
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_disable_irq_obj, machine_disable_irq);
STATIC mp_obj_t machine_enable_irq(mp_obj_t state_in) {
uint32_t state = mp_obj_get_int(state_in);
MICROPY_END_ATOMIC_SECTION(state);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(machine_enable_irq_obj, machine_enable_irq);
NORETURN mp_obj_t machine_bootloader(size_t n_args, const mp_obj_t *args) {
#if defined(MICROPY_BOARD_ENTER_BOOTLOADER)
// If a board has a custom bootloader, call it first.
MICROPY_BOARD_ENTER_BOOTLOADER(n_args, args);
#elif FSL_ROM_HAS_RUNBOOTLOADER_API
// If not, enter ROM bootloader in serial downloader / USB mode.
uint32_t arg = 0xEB110000;
ROM_RunBootloader(&arg);
#else
// No custom bootloader, or run bootloader API, then just reset.
WDOG_TriggerSystemSoftwareReset(WDOG1);
#endif
while (1) {
;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_bootloader_obj, 0, 1, machine_bootloader);
STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_machine) },
{ MP_ROM_QSTR(MP_QSTR_unique_id), MP_ROM_PTR(&machine_unique_id_obj) },
{ MP_ROM_QSTR(MP_QSTR_soft_reset), MP_ROM_PTR(&machine_soft_reset_obj) },
{ MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&machine_reset_obj) },
{ MP_ROM_QSTR(MP_QSTR_reset_cause), MP_ROM_PTR(&machine_reset_cause_obj) },
{ MP_ROM_QSTR(MP_QSTR_freq), MP_ROM_PTR(&machine_freq_obj) },
{ MP_ROM_QSTR(MP_QSTR_mem8), MP_ROM_PTR(&machine_mem8_obj) },
{ MP_ROM_QSTR(MP_QSTR_mem16), MP_ROM_PTR(&machine_mem16_obj) },
{ MP_ROM_QSTR(MP_QSTR_mem32), MP_ROM_PTR(&machine_mem32_obj) },
#if defined(MICROPY_HW_LED1_PIN)
{ MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&machine_led_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&machine_pin_type) },
#if MICROPY_PY_MACHINE_ADC
{ MP_ROM_QSTR(MP_QSTR_ADC), MP_ROM_PTR(&machine_adc_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_Timer), MP_ROM_PTR(&machine_timer_type) },
{ MP_ROM_QSTR(MP_QSTR_RTC), MP_ROM_PTR(&machine_rtc_type) },
#if MICROPY_PY_MACHINE_SDCARD
{ MP_ROM_QSTR(MP_QSTR_SDCard), MP_ROM_PTR(&machine_sdcard_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_PWM), MP_ROM_PTR(&machine_pwm_type) },
{ MP_ROM_QSTR(MP_QSTR_Signal), MP_ROM_PTR(&machine_signal_type) },
{ MP_ROM_QSTR(MP_QSTR_SoftI2C), MP_ROM_PTR(&mp_machine_soft_i2c_type) },
{ MP_ROM_QSTR(MP_QSTR_SoftSPI), MP_ROM_PTR(&mp_machine_soft_spi_type) },
{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&machine_i2c_type) },
#if MICROPY_PY_MACHINE_I2S
{ MP_ROM_QSTR(MP_QSTR_I2S), MP_ROM_PTR(&machine_i2s_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&machine_spi_type) },
#if MICROPY_PY_MACHINE_UART
{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&machine_uart_type) },
#endif
#if MICROPY_PY_MACHINE_WDT
{ MP_ROM_QSTR(MP_QSTR_WDT), MP_ROM_PTR(&machine_wdt_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_idle), MP_ROM_PTR(&machine_idle_obj) },
{ MP_ROM_QSTR(MP_QSTR_deepsleep), MP_ROM_PTR(&machine_deepsleep_obj) },
{ MP_ROM_QSTR(MP_QSTR_disable_irq), MP_ROM_PTR(&machine_disable_irq_obj) },
{ MP_ROM_QSTR(MP_QSTR_enable_irq), MP_ROM_PTR(&machine_enable_irq_obj) },
{ MP_ROM_QSTR(MP_QSTR_bootloader), MP_ROM_PTR(&machine_bootloader_obj) },
#if MICROPY_PY_MACHINE_BITSTREAM
{ MP_ROM_QSTR(MP_QSTR_bitstream), MP_ROM_PTR(&machine_bitstream_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_time_pulse_us), MP_ROM_PTR(&machine_time_pulse_us_obj) },
{ MP_ROM_QSTR(MP_QSTR_dht_readinto), MP_ROM_PTR(&dht_readinto_obj) },
// Reset reasons
{ MP_ROM_QSTR(MP_QSTR_PWRON_RESET), MP_ROM_INT(MP_PWRON_RESET) },
{ MP_ROM_QSTR(MP_QSTR_WDT_RESET), MP_ROM_INT(MP_WDT_RESET) },
{ MP_ROM_QSTR(MP_QSTR_SOFT_RESET), MP_ROM_INT(MP_SOFT_RESET) },
};
STATIC MP_DEFINE_CONST_DICT(machine_module_globals, machine_module_globals_table);
const mp_obj_module_t mp_module_machine = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&machine_module_globals,
};
MP_REGISTER_EXTENSIBLE_MODULE(MP_QSTR_machine, mp_module_machine);
#endif // MICROPY_PY_MACHINE
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