Remove old pcnt, rmt and timer group drivers

The new ones handle resource tracking for us. They also do a
better job running when the flash cache is disabled, which is the
source of bugs when interacting with flash over USB.

Fixes #6998 and fixes #8379

Author: tannewt

lib/protomatter

@@ -476,12 +476,6 @@ msgstr ""
 msgid "All I2C peripherals are in use"
 msgstr ""
 
-#: ports/espressif/common-hal/countio/Counter.c
-#: ports/espressif/common-hal/frequencyio/FrequencyIn.c
-#: ports/espressif/common-hal/rotaryio/IncrementalEncoder.c
-msgid "All PCNT units in use"
-msgstr ""
-
 #: ports/atmel-samd/common-hal/canio/Listener.c
 #: ports/espressif/common-hal/canio/Listener.c
 #: ports/stm/common-hal/canio/Listener.c
@@ -529,10 +523,6 @@ msgstr ""
 #: ports/atmel-samd/common-hal/pulseio/PulseIn.c
 #: ports/atmel-samd/common-hal/pulseio/PulseOut.c
 #: ports/cxd56/common-hal/pulseio/PulseOut.c
-#: ports/espressif/common-hal/frequencyio/FrequencyIn.c
-#: ports/espressif/common-hal/neopixel_write/__init__.c
-#: ports/espressif/common-hal/pulseio/PulseIn.c
-#: ports/espressif/common-hal/pulseio/PulseOut.c
 #: ports/nrf/common-hal/audiopwmio/PWMAudioOut.c
 #: ports/nrf/common-hal/pulseio/PulseIn.c ports/nrf/peripherals/nrf/timers.c
 #: ports/raspberrypi/common-hal/audiopwmio/PWMAudioOut.c
@@ -735,7 +725,7 @@ msgstr ""
 
 #: shared-bindings/storage/__init__.c shared-bindings/usb_cdc/__init__.c
 #: shared-bindings/usb_hid/__init__.c shared-bindings/usb_midi/__init__.c
-#: shared-bindings/uvc/__init__.c
+#: shared-bindings/usb_video/__init__.c
 msgid "Cannot change USB devices now"
 msgstr ""
 
@@ -827,10 +817,6 @@ msgstr ""
 msgid "Coordinate arrays types have different sizes"
 msgstr ""
 
-#: ports/espressif/common-hal/neopixel_write/__init__.c
-msgid "Could not retrieve clock"
-msgstr ""
-
 #: shared-bindings/_bleio/Adapter.c
 msgid "Could not set address"
 msgstr ""
@@ -1134,7 +1120,7 @@ msgstr ""
 msgid "Input taking too long"
 msgstr ""
 
-#: ports/espressif/common-hal/neopixel_write/__init__.c py/moderrno.c
+#: py/moderrno.c
 msgid "Input/output error"
 msgstr ""
 

locale/circuitpython.pot

@@ -79,10 +79,13 @@ INC += \
 	-isystem esp-idf/components/driver/deprecated \
 	-isystem esp-idf/components/driver/dac/include \
 	-isystem esp-idf/components/driver/gpio/include \
+	-isystem esp-idf/components/driver/gptimer/include \
 	-isystem esp-idf/components/driver/i2c/include \
 	-isystem esp-idf/components/driver/i2s/include \
 	-isystem esp-idf/components/driver/$(IDF_TARGET)/include \
 	-isystem esp-idf/components/driver/ledc/include \
+	-isystem esp-idf/components/driver/pcnt/include \
+	-isystem esp-idf/components/driver/rmt/include \
 	-isystem esp-idf/components/driver/spi/include \
 	-isystem esp-idf/components/driver/temperature_sensor/include \
 	-isystem esp-idf/components/driver/touch_sensor/include \
@@ -280,8 +283,6 @@ SRC_C += \
 	boards/$(BOARD)/pins.c \
 	shared/netutils/netutils.c \
 	peripherals/i2c.c \
-	peripherals/rmt.c \
-	peripherals/timer.c \
 	peripherals/$(IDF_TARGET)/pins.c
 
 SRC_C += $(wildcard common-hal/espidf/*.c)
@@ -290,10 +291,6 @@ ifneq ($(CIRCUITPY_ESP_USB_SERIAL_JTAG),0)
 SRC_C += supervisor/usb_serial_jtag.c
 endif
 
-ifneq ($(CIRCUITPY_COUNTIO),0)
-SRC_C += peripherals/pcnt.c
-endif
-
 ifneq ($(CIRCUITPY_TOUCHIO_USE_NATIVE),0)
 SRC_C += peripherals/touch.c
 endif

ports/espressif/Makefile

@@ -32,20 +32,9 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
-#if CIRCUITPY_DISPLAYIO
-#include "shared-module/displayio/__init__.h"
-#endif
-
-#if CIRCUITPY_PULSEIO
-#include "common-hal/pulseio/PulseIn.h"
-#endif
-
 void port_background_tick(void) {
     // Zero delay in case FreeRTOS wants to switch to something else.
     vTaskDelay(0);
-    #if CIRCUITPY_PULSEIO
-    pulsein_background();
-    #endif
 }
 
 void port_background_task(void) {

ports/espressif/background.c

@@ -28,6 +28,8 @@
 #include "shared-bindings/countio/Counter.h"
 #include "common-hal/microcontroller/Pin.h"
 
+#include "bindings/espidf/__init__.h"
+
 #include "py/runtime.h"
 
 #include "driver/gpio.h"
@@ -36,25 +38,26 @@ void common_hal_countio_counter_construct(countio_counter_obj_t *self,
     const mcu_pin_obj_t *pin, countio_edge_t edge, digitalio_pull_t pull) {
     claim_pin(pin);
 
-    // Prepare configuration for the PCNT unit
-    pcnt_config_t pcnt_config = {
-        // Set PCNT input signal and control GPIOs
-        .pulse_gpio_num = pin->number,
-        .ctrl_gpio_num = PCNT_PIN_NOT_USED,
-        .channel = PCNT_CHANNEL_0,
-        // What to do on the rising / falling edge of pulse input?
-        // If EDGE_RISE_AND_FALL, both modeswill do PCNT_COUNT_INC.
-        .pos_mode = (edge == EDGE_FALL) ? PCNT_COUNT_DIS : PCNT_COUNT_INC, // Count up unless only fall
-        .neg_mode = (edge == EDGE_RISE) ? PCNT_COUNT_DIS : PCNT_COUNT_INC, // Count up unless only rise
+    pcnt_unit_config_t unit_config = {
+        // Set counter limit
+        .low_limit = -1,
+        .high_limit = INT16_MAX
     };
+    // The pulse count driver automatically counts roll overs.
+    unit_config.flags.accum_count = true;
 
-    // Initialize PCNT unit
-    const int8_t unit = peripherals_pcnt_init(&pcnt_config);
-    if (unit == -1) {
-        mp_raise_RuntimeError(MP_ERROR_TEXT("All PCNT units in use"));
-    }
+    // initialize PCNT
+    CHECK_ESP_RESULT(pcnt_new_unit(&unit_config, &self->unit));
 
     self->pin = pin->number;
+    pcnt_chan_config_t channel_config = {
+        .edge_gpio_num = self->pin,
+        .level_gpio_num = -1
+    };
+    CHECK_ESP_RESULT(pcnt_new_channel(self->unit, &channel_config, &self->channel));
+    pcnt_channel_edge_action_t pos = (edge == EDGE_RISE || edge == EDGE_RISE_AND_FALL) ? PCNT_CHANNEL_EDGE_ACTION_INCREASE : PCNT_CHANNEL_EDGE_ACTION_HOLD;
+    pcnt_channel_edge_action_t neg = (edge == EDGE_FALL || edge == EDGE_RISE_AND_FALL) ? PCNT_CHANNEL_EDGE_ACTION_INCREASE : PCNT_CHANNEL_EDGE_ACTION_HOLD;
+    pcnt_channel_set_edge_action(self->channel, pos, neg);
 
     gpio_pullup_dis(pin->number);
     gpio_pulldown_dis(pin->number);
@@ -64,29 +67,34 @@ void common_hal_countio_counter_construct(countio_counter_obj_t *self,
         gpio_pulldown_en(pin->number);
     }
 
-    self->unit = (pcnt_unit_t)unit;
+
+    pcnt_unit_enable(self->unit);
+    pcnt_unit_start(self->unit);
 }
 
 bool common_hal_countio_counter_deinited(countio_counter_obj_t *self) {
-    return self->unit == PCNT_UNIT_MAX;
+    return self->unit == NULL;
 }
 
 void common_hal_countio_counter_deinit(countio_counter_obj_t *self) {
     if (common_hal_countio_counter_deinited(self)) {
         return;
     }
+    pcnt_unit_disable(self->unit);
+    pcnt_del_channel(self->channel);
     reset_pin_number(self->pin);
-    peripherals_pcnt_deinit(&self->unit);
+    pcnt_del_unit(self->unit);
+    self->unit = NULL;
 }
 
 mp_int_t common_hal_countio_counter_get_count(countio_counter_obj_t *self) {
-    int16_t count;
-    pcnt_get_counter_value(self->unit, &count);
+    int count;
+    pcnt_unit_get_count(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(self->unit);
+    pcnt_unit_clear_count(self->unit);
 }

ports/espressif/common-hal/countio/Counter.c

@@ -24,17 +24,15 @@
  * THE SOFTWARE.
  */
 
-#ifndef MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_COUNTIO_COUNTER_H
-#define MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_COUNTIO_COUNTER_H
+#pragma once
 
 #include "py/obj.h"
-#include "peripherals/pcnt.h"
+#include "driver/pulse_cnt.h"
 
 typedef struct {
     mp_obj_base_t base;
-    uint8_t pin;
+    pcnt_unit_handle_t unit;
+    pcnt_channel_handle_t channel;
     mp_int_t count;
-    pcnt_unit_t unit;
+    uint8_t pin;
 } countio_counter_obj_t;
-
-#endif // MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_COUNTIO_COUNT_H