diff options
| -rw-r--r-- | locale/circuitpython.pot | 9 | ||||
| -rw-r--r-- | ports/esp32s2/Makefile | 1 | ||||
| -rw-r--r-- | ports/esp32s2/common-hal/countio/Counter.c | 70 | ||||
| -rw-r--r-- | ports/esp32s2/common-hal/countio/Counter.h | 31 | ||||
| -rw-r--r-- | ports/esp32s2/pcnt_handler.c | 67 | ||||
| -rw-r--r-- | ports/esp32s2/pcnt_handler.h | 35 |
6 files changed, 177 insertions, 36 deletions
diff --git a/locale/circuitpython.pot b/locale/circuitpython.pot index 16c3dd973..1336ab25c 100644 --- a/locale/circuitpython.pot +++ b/locale/circuitpython.pot @@ -8,7 +8,7 @@ msgid "" msgstr "" "Project-Id-Version: PACKAGE VERSION\n" "Report-Msgid-Bugs-To: \n" -"POT-Creation-Date: 2020-10-21 20:13-0500\n" +"POT-Creation-Date: 2020-11-01 11:11+0530\n" "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n" "Language-Team: LANGUAGE <LL@li.org>\n" @@ -1109,7 +1109,8 @@ msgid "Invalid phase" msgstr "" #: ports/atmel-samd/common-hal/audioio/AudioOut.c -#: ports/atmel-samd/common-hal/touchio/TouchIn.c shared-bindings/pwmio/PWMOut.c +#: ports/atmel-samd/common-hal/touchio/TouchIn.c +#: ports/esp32s2/common-hal/touchio/TouchIn.c shared-bindings/pwmio/PWMOut.c #: shared-module/rgbmatrix/RGBMatrix.c msgid "Invalid pin" msgstr "" @@ -1271,6 +1272,10 @@ msgstr "" msgid "No MOSI Pin" msgstr "" +#: ports/esp32s2/pcnt_handler.c +msgid "No PCNT unit free" +msgstr "" + #: ports/atmel-samd/common-hal/busio/UART.c #: ports/esp32s2/common-hal/busio/UART.c #: ports/mimxrt10xx/common-hal/busio/UART.c ports/nrf/common-hal/busio/UART.c diff --git a/ports/esp32s2/Makefile b/ports/esp32s2/Makefile index 8d891edd0..6dbbf58d4 100644 --- a/ports/esp32s2/Makefile +++ b/ports/esp32s2/Makefile @@ -173,6 +173,7 @@ SRC_C += \ background.c \ fatfs_port.c \ mphalport.c \ + pcnt_handler.c \ bindings/espidf/__init__.c \ boards/$(BOARD)/board.c \ boards/$(BOARD)/pins.c \ diff --git a/ports/esp32s2/common-hal/countio/Counter.c b/ports/esp32s2/common-hal/countio/Counter.c index 6a76a163d..435762473 100644 --- a/ports/esp32s2/common-hal/countio/Counter.c +++ b/ports/esp32s2/common-hal/countio/Counter.c @@ -1,67 +1,75 @@ -#include "common-hal/countio/Counter.h" +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2020 microDev + * + * 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 "supervisor/shared/translate.h" +#include "common-hal/countio/Counter.h" +#include "common-hal/microcontroller/Pin.h" -#include "driver/pcnt.h" +void common_hal_countio_counter_construct(countio_counter_obj_t* self, + const mcu_pin_obj_t* pin) { + claim_pin(pin); -static void pcnt_init(countio_counter_obj_t* self) { - int unit = PCNT_UNIT_0; // Prepare configuration for the PCNT unit pcnt_config_t pcnt_config = { // Set PCNT input signal and control GPIOs - .pulse_gpio_num = self->pin->number, + .pulse_gpio_num = pin->number, .ctrl_gpio_num = PCNT_PIN_NOT_USED, .channel = PCNT_CHANNEL_0, - .unit = unit, // What to do on the positive / negative edge of pulse input? .pos_mode = PCNT_COUNT_INC, // Count up on the positive edge .neg_mode = PCNT_COUNT_DIS, // Keep the counter value on the negative edge }; // Initialize PCNT unit - pcnt_unit_config(&pcnt_config); - - // Configure and enable the input filter - pcnt_set_filter_value(unit, 100); - pcnt_filter_enable(unit); + pcnt_handler_init(&pcnt_config); - // Initialize PCNT's counter - pcnt_counter_pause(unit); - pcnt_counter_clear(unit); - - // Everything is set up, now go to counting - pcnt_counter_resume(unit); -} - -void common_hal_countio_counter_construct(countio_counter_obj_t* self, - const mcu_pin_obj_t* pin) { - claim_pin(pin); - self->pin = pin; - pcnt_init(self); + self->pin = pin->number; + self->unit = pcnt_config.unit; } bool common_hal_countio_counter_deinited(countio_counter_obj_t* self) { - return self->pin == NULL; + return self->unit == PCNT_UNIT_MAX; } void common_hal_countio_counter_deinit(countio_counter_obj_t* self) { if (common_hal_countio_counter_deinited(self)) { return; } - reset_pin_number(self->pin->number); - self->pin = NULL; + reset_pin_number(self->pin); + pcnt_handler_deinit(&self->unit); } mp_int_t common_hal_countio_counter_get_count(countio_counter_obj_t* self) { int16_t count; - pcnt_get_counter_value(PCNT_UNIT_0, &count); + pcnt_get_counter_value(self->unit, &count); return count+self->count; } void common_hal_countio_counter_set_count(countio_counter_obj_t* self, mp_int_t new_count) { self->count = new_count; - pcnt_counter_clear(PCNT_UNIT_0); + pcnt_counter_clear(self->unit); } void common_hal_countio_counter_reset(countio_counter_obj_t* self) { diff --git a/ports/esp32s2/common-hal/countio/Counter.h b/ports/esp32s2/common-hal/countio/Counter.h index 3406f9daa..63d1eb98b 100644 --- a/ports/esp32s2/common-hal/countio/Counter.h +++ b/ports/esp32s2/common-hal/countio/Counter.h @@ -1,15 +1,40 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2020 microDev + * + * 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. + */ #ifndef MICROPY_INCLUDED_ESP32S2_COMMON_HAL_COUNTIO_COUNTER_H #define MICROPY_INCLUDED_ESP32S2_COMMON_HAL_COUNTIO_COUNTER_H -#include "common-hal/microcontroller/Pin.h" - #include "py/obj.h" +#include "pcnt_handler.h" typedef struct { mp_obj_base_t base; - const mcu_pin_obj_t * pin; + uint8_t pin; mp_int_t count; + pcnt_unit_t unit; } countio_counter_obj_t; #endif // MICROPY_INCLUDED_ESP32S2_COMMON_HAL_COUNTIO_COUNT_H diff --git a/ports/esp32s2/pcnt_handler.c b/ports/esp32s2/pcnt_handler.c new file mode 100644 index 000000000..56fb0f21c --- /dev/null +++ b/ports/esp32s2/pcnt_handler.c @@ -0,0 +1,67 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2020 microDev + * + * 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 "pcnt_handler.h" + +#include "py/runtime.h" +#include "supervisor/shared/translate.h" + +#define PCNT_UNIT_ACTIVE 1 +#define PCNT_UNIT_INACTIVE 0 + +static uint8_t pcnt_state[4]; + +void pcnt_handler_init(pcnt_config_t* pcnt_config) { + // Look for available pcnt unit + for (uint8_t i = 0; i<=3; i++) { + if (pcnt_state[i] == PCNT_UNIT_INACTIVE) { + pcnt_config->unit = (pcnt_unit_t)i; + pcnt_state[i] = PCNT_UNIT_ACTIVE; + break; + } else if (i == 3) { + mp_raise_RuntimeError(translate("No PCNT unit free")); + } + } + + // Initialize PCNT unit + pcnt_unit_config(pcnt_config); + + // Configure and enable the input filter + pcnt_set_filter_value(pcnt_config->unit, 100); + pcnt_filter_enable(pcnt_config->unit); + + // Initialize PCNT's counter + pcnt_counter_pause(pcnt_config->unit); + pcnt_counter_clear(pcnt_config->unit); + + // Everything is set up, now go to counting + pcnt_counter_resume(pcnt_config->unit); +} + +void pcnt_handler_deinit(pcnt_unit_t* unit) { + pcnt_state[*unit] = PCNT_UNIT_INACTIVE; + *unit = PCNT_UNIT_MAX; +} diff --git a/ports/esp32s2/pcnt_handler.h b/ports/esp32s2/pcnt_handler.h new file mode 100644 index 000000000..4bdaee1b8 --- /dev/null +++ b/ports/esp32s2/pcnt_handler.h @@ -0,0 +1,35 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2020 microDev + * + * 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. + */ + +#ifndef MICROPY_INCLUDED_ESP32S2_PCNT_HANDLER_H +#define MICROPY_INCLUDED_ESP32S2_PCNT_HANDLER_H + +#include "driver/pcnt.h" + +extern void pcnt_handler_init(pcnt_config_t* pcnt_config); +extern void pcnt_handler_deinit(pcnt_unit_t* unit); + +#endif // MICROPY_INCLUDED_ESP32S2_PCNT_HANDLER_H |