Merge pull request #4755 from jepler/esp32s2-protomatter

Esp32s2 protomatter

Author: tannewt

lib/protomatter

@@ -222,6 +222,8 @@ OBJ += $(addprefix $(BUILD)/, $(SRC_MOD:.c=.o))
 $(BUILD)/$(FATFS_DIR)/ff.o: COPT += -Os
 $(filter $(PY_BUILD)/../extmod/vfs_fat_%.o, $(PY_O)): COPT += -Os
 
+$(BUILD)/lib/protomatter/src/core.o: CFLAGS += -DESP32
+
 # List of sources for qstr extraction
 SRC_QSTR += $(SRC_C) $(SRC_SUPERVISOR) $(SRC_MOD) $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED)
 # Sources that only hold QSTRs after pre-processing.

ports/esp32s2/Makefile

@@ -51,7 +51,7 @@ STATIC void floating_gpio_reset(gpio_num_t pin_number) {
 }
 
 void never_reset_pin_number(gpio_num_t pin_number) {
-    if (pin_number == -1) {
+    if (pin_number == NO_PIN) {
         return;
     }
     never_reset_pins[pin_number / 32] |= 1 << pin_number % 32;
@@ -63,7 +63,7 @@ void common_hal_never_reset_pin(const mcu_pin_obj_t *pin) {
 
 // Mark pin as free and return it to a quiescent state.
 void reset_pin_number(gpio_num_t pin_number) {
-    if (pin_number == -1) {
+    if (pin_number == NO_PIN) {
         return;
     }
     never_reset_pins[pin_number / 32] &= ~(1 << pin_number % 32);
@@ -72,6 +72,10 @@ void reset_pin_number(gpio_num_t pin_number) {
     floating_gpio_reset(pin_number);
 }
 
+void common_hal_mcu_pin_reset_number(uint8_t i) {
+    reset_pin_number((gpio_num_t)i);
+}
+
 void common_hal_reset_pin(const mcu_pin_obj_t *pin) {
     if (pin == NULL) {
         return;
@@ -109,3 +113,7 @@ bool pin_number_is_free(gpio_num_t pin_number) {
 bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t *pin) {
     return pin_number_is_free(pin->number);
 }
+
+uint8_t common_hal_mcu_pin_number(const mcu_pin_obj_t *pin) {
+    return pin ? pin->number : NO_PIN;
+}

ports/esp32s2/common-hal/microcontroller/Pin.c

@@ -0,0 +1,75 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Jeff Epler for Adafruit Industries
+ *
+ * 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 <stddef.h>
+
+#include "common-hal/rgbmatrix/RGBMatrix.h"
+
+#include "peripherals/timer.h"
+
+void *common_hal_rgbmatrix_timer_allocate(rgbmatrix_rgbmatrix_obj_t *self) {
+    const timer_config_t config = {
+        .alarm_en = false,
+        .counter_en = false,
+        .intr_type = TIMER_INTR_LEVEL,
+        .counter_dir = TIMER_COUNT_UP,
+        .auto_reload = true,
+        .divider = 2 // 40MHz
+    };
+
+    timer_index_t *timer = malloc(sizeof(timer_index_t));
+    bool res = peripherals_timer_init(&config, timer);
+    if (!res) {
+        return NULL;
+    }
+    peripherals_timer_never_reset(timer);
+    return timer;
+}
+
+extern bool _PM_esp32timerCallback(void *arg);
+
+void common_hal_rgbmatrix_timer_enable(void *ptr) {
+}
+
+void common_hal_rgbmatrix_timer_disable(void *ptr) {
+    timer_index_t *timer = (timer_index_t *)ptr;
+    if (timer->idx == TIMER_MAX) {
+        return;
+    }
+    timer_pause(timer->group, timer->idx);
+    timer_disable_intr(timer->group, timer->idx);
+    timer_isr_callback_remove(timer->group, timer->idx);
+}
+
+void common_hal_rgbmatrix_timer_free(void *ptr) {
+    timer_index_t *timer = (timer_index_t *)ptr;
+    if (timer->idx == TIMER_MAX) {
+        return;
+    }
+    common_hal_rgbmatrix_timer_disable(ptr);
+    peripherals_timer_deinit(timer);
+    timer->idx = TIMER_MAX;
+}

ports/esp32s2/common-hal/rgbmatrix/RGBMatrix.c

@@ -0,0 +1,37 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Jeff Epler for Adafruit Industries
+ *
+ * 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_ATMEL_SAMD_COMMON_HAL_RGBMATRIX_RGBMATRIX_H
+#define MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_RGBMATRIX_RGBMATRIX_H
+
+#include "shared-module/rgbmatrix/RGBMatrix.h"
+
+void *common_hal_rgbmatrix_timer_allocate(rgbmatrix_rgbmatrix_obj_t *self);
+void common_hal_rgbmatrix_timer_enable(void *);
+void common_hal_rgbmatrix_timer_disable(void *);
+void common_hal_rgbmatrix_timer_free(void *);
+
+#endif

ports/esp32s2/common-hal/rgbmatrix/RGBMatrix.h

@@ -21,8 +21,10 @@ CIRCUITPY_AUDIOIO = 0
 CIRCUITPY_CANIO = 1
 CIRCUITPY_COUNTIO = 1
 CIRCUITPY_DUALBANK = 1
+CIRCUITPY_FRAMEBUFFERIO = 1
 CIRCUITPY_FREQUENCYIO = 1
 CIRCUITPY_I2CPERIPHERAL = 0
+CIRCUITPY_RGBMATRIX = 1
 CIRCUITPY_ROTARYIO = 1
 CIRCUITPY_NVM = 1
 CIRCUITPY_PS2IO ?= 1

ports/esp32s2/common-hal/rgbmatrix/__init__.c

@@ -91,4 +91,6 @@ extern const mcu_pin_obj_t pin_GPIO44;
 extern const mcu_pin_obj_t pin_GPIO45;
 extern const mcu_pin_obj_t pin_GPIO46;
 
+#define NO_PIN (GPIO_NUM_NC)
+
 #endif // MICROPY_INCLUDED_ESP32S2_PERIPHERALS_PINS_H

ports/esp32s2/common-hal/rgbmatrix/__init__.h

@@ -26,6 +26,7 @@
 
 #include "peripherals/timer.h"
 
+#define TIMER_NEVER_RESET 2
 #define TIMER_FREE 1
 #define TIMER_BUSY 0
 
@@ -45,7 +46,7 @@ void peripherals_timer_reset(void) {
     }
 }
 
-void peripherals_timer_init(const timer_config_t *config, timer_index_t *timer) {
+bool peripherals_timer_init(const timer_config_t *config, timer_index_t *timer) {
     bool break_loop = false;
 
     // get free timer
@@ -60,19 +61,38 @@ void peripherals_timer_init(const timer_config_t *config, timer_index_t *timer)
             } else if (i == 1 && j == 1) {
                 timer->idx = TIMER_MAX;
                 timer->group = TIMER_GROUP_MAX;
-                return;
+                return false;
             }
         }
         if (break_loop) {
             break;
         }
     }
 
+    timer->hw = (timer->group == 0) ? &TIMERG0 : &TIMERG1;
+
     // initialize timer module
     timer_init(timer->group, timer->idx, config);
     timer_set_counter_value(timer->group, timer->idx, 0);
+
+    return true;
 }
 
 void peripherals_timer_deinit(timer_index_t *timer) {
+    if (timer->group == TIMER_GROUP_MAX || timer->idx == TIMER_MAX) {
+        return;
+    }
+    timer_deinit(timer->group, timer->idx);
+    int i = timer->group;
+    int j = timer->idx;
+    timer->group = TIMER_GROUP_MAX;
+    timer->idx = TIMER_MAX;
+    timer_state[i][j] = TIMER_FREE;
+}
+
+void peripherals_timer_never_reset(timer_index_t *timer) {
     timer_deinit(timer->group, timer->idx);
+    int i = timer->group;
+    int j = timer->idx;
+    timer_state[i][j] = TIMER_NEVER_RESET;
 }