You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
104 lines
4.0 KiB
104 lines
4.0 KiB
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2020-2021 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.
|
|
*/
|
|
|
|
#include "py/runtime.h"
|
|
#include "drivers/dht/dht.h"
|
|
#include "modrp2.h"
|
|
#include "pico/stdlib.h"
|
|
#include "hardware/gpio.h"
|
|
#include "hardware/sync.h"
|
|
#include "hardware/structs/ioqspi.h"
|
|
#include "hardware/structs/sio.h"
|
|
|
|
#if MICROPY_PY_NETWORK_CYW43
|
|
#include "extmod/modnetwork.h"
|
|
#endif
|
|
|
|
#if MICROPY_PY_NETWORK_CYW43
|
|
MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mod_network_country_obj);
|
|
#endif
|
|
|
|
// Improved version of
|
|
// https://github.com/raspberrypi/pico-examples/blob/master/picoboard/button/button.c
|
|
STATIC bool __no_inline_not_in_flash_func(bootsel_button)(void) {
|
|
const uint CS_PIN_INDEX = 1;
|
|
|
|
// Disable interrupts and the other core since they might be
|
|
// executing code from flash and we are about to temporarily
|
|
// disable flash access.
|
|
mp_uint_t atomic_state = MICROPY_BEGIN_ATOMIC_SECTION();
|
|
|
|
// Set the CS pin to high impedance.
|
|
hw_write_masked(&ioqspi_hw->io[CS_PIN_INDEX].ctrl,
|
|
(GPIO_OVERRIDE_LOW << IO_QSPI_GPIO_QSPI_SS_CTRL_OEOVER_LSB),
|
|
IO_QSPI_GPIO_QSPI_SS_CTRL_OEOVER_BITS);
|
|
|
|
// Delay without calling any functions in flash.
|
|
uint32_t start = timer_hw->timerawl;
|
|
while ((uint32_t)(timer_hw->timerawl - start) <= MICROPY_HW_BOOTSEL_DELAY_US) {
|
|
;
|
|
}
|
|
|
|
// The HI GPIO registers in SIO can observe and control the 6 QSPI pins.
|
|
// The button pulls the QSPI_SS pin *low* when pressed.
|
|
bool button_state = !(sio_hw->gpio_hi_in & (1 << CS_PIN_INDEX));
|
|
|
|
// Restore the QSPI_SS pin so we can use flash again.
|
|
hw_write_masked(&ioqspi_hw->io[CS_PIN_INDEX].ctrl,
|
|
(GPIO_OVERRIDE_NORMAL << IO_QSPI_GPIO_QSPI_SS_CTRL_OEOVER_LSB),
|
|
IO_QSPI_GPIO_QSPI_SS_CTRL_OEOVER_BITS);
|
|
|
|
MICROPY_END_ATOMIC_SECTION(atomic_state);
|
|
|
|
return button_state;
|
|
}
|
|
|
|
STATIC mp_obj_t rp2_bootsel_button(void) {
|
|
return MP_OBJ_NEW_SMALL_INT(bootsel_button());
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_0(rp2_bootsel_button_obj, rp2_bootsel_button);
|
|
|
|
|
|
STATIC const mp_rom_map_elem_t rp2_module_globals_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_rp2) },
|
|
{ MP_ROM_QSTR(MP_QSTR_Flash), MP_ROM_PTR(&rp2_flash_type) },
|
|
{ MP_ROM_QSTR(MP_QSTR_PIO), MP_ROM_PTR(&rp2_pio_type) },
|
|
{ MP_ROM_QSTR(MP_QSTR_StateMachine), MP_ROM_PTR(&rp2_state_machine_type) },
|
|
{ MP_ROM_QSTR(MP_QSTR_bootsel_button), MP_ROM_PTR(&rp2_bootsel_button_obj) },
|
|
|
|
#if MICROPY_PY_NETWORK_CYW43
|
|
// Deprecated (use network.country instead).
|
|
{ MP_ROM_QSTR(MP_QSTR_country), MP_ROM_PTR(&mod_network_country_obj) },
|
|
#endif
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(rp2_module_globals, rp2_module_globals_table);
|
|
|
|
const mp_obj_module_t mp_module_rp2 = {
|
|
.base = { &mp_type_module },
|
|
.globals = (mp_obj_dict_t *)&rp2_module_globals,
|
|
};
|
|
|
|
MP_REGISTER_MODULE(MP_QSTR__rp2, mp_module_rp2);
|
|
|