Add boilerplate, create basic PWMOut test

8 files changed, 395 insertions, 1 deletions

diff --git a/ports/esp32s2/common-hal/pulseio/PWMOut.c b/ports/esp32s2/common-hal/pulseio/PWMOut.c
new file mode 100644
index 000000000..8f96433c0
--- /dev/null
+++ b/ports/esp32s2/common-hal/pulseio/PWMOut.c
@@ -0,0 +1,120 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ * Uses code from Micropython, Copyright (c) 2013-2016 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 "common-hal/pulseio/PWMOut.h"
+#include "shared-bindings/pulseio/PWMOut.h"
+#include "py/runtime.h"
+#include "driver/ledc.h"
+
+#define LEDC_LS_TIMER          LEDC_TIMER_1
+#define LEDC_LS_MODE           LEDC_LOW_SPEED_MODE
+#define LEDC_LS_CH0_GPIO       (18)
+#define LEDC_LS_CH0_CHANNEL    LEDC_CHANNEL_0
+#define LEDC_LS_CH1_GPIO       (19)
+#define LEDC_LS_CH1_CHANNEL    LEDC_CHANNEL_1
+#define LEDC_LS_CH2_GPIO       (4)
+#define LEDC_LS_CH2_CHANNEL    LEDC_CHANNEL_2
+#define LEDC_LS_CH3_GPIO       (5)
+#define LEDC_LS_CH3_CHANNEL    LEDC_CHANNEL_3
+
+#define LEDC_TEST_CH_NUM       (4)
+#define LEDC_TEST_DUTY         (4000)
+#define LEDC_TEST_FADE_TIME    (3000)
+
+
+
+void pwmout_reset(void) {
+}
+
+pwmout_result_t common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
+                                                    const mcu_pin_obj_t* pin,
+                                                    uint16_t duty,
+                                                    uint32_t frequency,
+                                                    bool variable_frequency) {
+    ledc_timer_config_t ledc_timer = {
+        .duty_resolution = LEDC_TIMER_16_BIT,   // resolution of PWM duty
+        .freq_hz = frequency,                   // frequency of PWM signal
+        .speed_mode = LEDC_LS_MODE,             // timer mode
+        .timer_num = LEDC_LS_TIMER,             // timer index
+        .clk_cfg = LEDC_AUTO_CLK,               // Auto select the source clock
+    };
+    // Set configuration of timer0 for high speed channels
+    ledc_timer_config(&ledc_timer);
+
+    ledc_channel_config_t pwm_channel = {
+        .channel    = LEDC_LS_CH0_CHANNEL,
+        .duty       = 0,
+        .gpio_num   = pin->number,
+        .speed_mode = LEDC_LS_MODE,
+        .hpoint     = 0,
+        .timer_sel  = LEDC_LS_TIMER
+    };
+
+    // Set LED Controller with previously prepared configuration
+    for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
+        ledc_channel_config(&ledc_channel[ch]);
+    }
+
+    for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
+        ledc_set_duty(ledc_channel[ch].speed_mode, ledc_channel[ch].channel, duty*2);
+        ledc_update_duty(ledc_channel[ch].speed_mode, ledc_channel[ch].channel);
+    }
+
+    return PWMOUT_OK;
+}
+
+void common_hal_pulseio_pwmout_never_reset(pulseio_pwmout_obj_t *self) {
+}
+
+void common_hal_pulseio_pwmout_reset_ok(pulseio_pwmout_obj_t *self) {
+}
+
+bool common_hal_pulseio_pwmout_deinited(pulseio_pwmout_obj_t* self) {
+    return false;
+}
+
+void common_hal_pulseio_pwmout_deinit(pulseio_pwmout_obj_t* self) {
+}
+
+void common_hal_pulseio_pwmout_set_duty_cycle(pulseio_pwmout_obj_t* self, uint16_t duty) {
+}
+
+uint16_t common_hal_pulseio_pwmout_get_duty_cycle(pulseio_pwmout_obj_t* self) {
+    return false;
+}
+
+void common_hal_pulseio_pwmout_set_frequency(pulseio_pwmout_obj_t* self, uint32_t frequency) {
+}
+
+uint32_t common_hal_pulseio_pwmout_get_frequency(pulseio_pwmout_obj_t* self) {
+    return false;
+}
+
+bool common_hal_pulseio_pwmout_get_variable_frequency(pulseio_pwmout_obj_t* self) {
+    return false;
+}
diff --git a/ports/esp32s2/common-hal/pulseio/PWMOut.h b/ports/esp32s2/common-hal/pulseio/PWMOut.h
new file mode 100644
index 000000000..28484e923
--- /dev/null
+++ b/ports/esp32s2/common-hal/pulseio/PWMOut.h
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland 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_ESP32S2_COMMON_HAL_PULSEIO_PWMOUT_H
+#define MICROPY_INCLUDED_ESP32S2_COMMON_HAL_PULSEIO_PWMOUT_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    uint8_t channel;
+    bool variable_frequency: 1;
+    uint16_t duty_cycle;
+    uint32_t frequency;
+    uint32_t period;
+} pulseio_pwmout_obj_t;
+
+void pwmout_reset(void);
+
+#endif // MICROPY_INCLUDED_ESP32S2_COMMON_HAL_PULSEIO_PWMOUT_H
diff --git a/ports/esp32s2/common-hal/pulseio/PulseIn.c b/ports/esp32s2/common-hal/pulseio/PulseIn.c
new file mode 100644
index 000000000..65fc6631d
--- /dev/null
+++ b/ports/esp32s2/common-hal/pulseio/PulseIn.c
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Lucian Copeland 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 "common-hal/pulseio/PulseIn.h"
+#include "py/runtime.h"
+
+// STATIC void pulsein_handler(uint8_t num) {
+// }
+
+void pulsein_reset(void) {
+}
+
+void common_hal_pulseio_pulsein_construct(pulseio_pulsein_obj_t* self, const mcu_pin_obj_t* pin,
+                                             uint16_t maxlen, bool idle_state) {
+    mp_raise_NotImplementedError(translate("PulseIn not supported on this chip"));
+}
+
+bool common_hal_pulseio_pulsein_deinited(pulseio_pulsein_obj_t* self) {
+    return false;
+}
+
+void common_hal_pulseio_pulsein_deinit(pulseio_pulsein_obj_t* self) {
+}
+
+void common_hal_pulseio_pulsein_pause(pulseio_pulsein_obj_t* self) {
+}
+
+void common_hal_pulseio_pulsein_resume(pulseio_pulsein_obj_t* self, uint16_t trigger_duration) {
+}
+
+void common_hal_pulseio_pulsein_clear(pulseio_pulsein_obj_t* self) {
+}
+
+uint16_t common_hal_pulseio_pulsein_get_item(pulseio_pulsein_obj_t* self, int16_t index) {
+    return false;
+}
+
+uint16_t common_hal_pulseio_pulsein_popleft(pulseio_pulsein_obj_t* self) {
+    return false;
+}
+
+uint16_t common_hal_pulseio_pulsein_get_maxlen(pulseio_pulsein_obj_t* self) {
+    return false;
+}
+
+bool common_hal_pulseio_pulsein_get_paused(pulseio_pulsein_obj_t* self) {
+    return false;
+}
+
+uint16_t common_hal_pulseio_pulsein_get_len(pulseio_pulsein_obj_t* self) {
+    return false;
+}
diff --git a/ports/esp32s2/common-hal/pulseio/PulseIn.h b/ports/esp32s2/common-hal/pulseio/PulseIn.h
new file mode 100644
index 000000000..b317c516c
--- /dev/null
+++ b/ports/esp32s2/common-hal/pulseio/PulseIn.h
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland 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_ESP32S2_COMMON_HAL_PULSEIO_PULSEIN_H
+#define MICROPY_INCLUDED_ESP32S2_COMMON_HAL_PULSEIO_PULSEIN_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+
+    const mcu_pin_obj_t* pin;
+    bool idle_state;
+    bool paused;
+    volatile bool first_edge;
+
+    uint16_t* buffer;
+    uint16_t maxlen;
+
+    volatile uint16_t start;
+    volatile uint16_t len;
+    volatile uint32_t last_overflow;
+    volatile uint16_t last_count;
+} pulseio_pulsein_obj_t;
+
+void pulsein_reset(void);
+
+#endif // MICROPY_INCLUDED_ESP32S2_COMMON_HAL_PULSEIO_PULSEIN_H
diff --git a/ports/esp32s2/common-hal/pulseio/PulseOut.c b/ports/esp32s2/common-hal/pulseio/PulseOut.c
new file mode 100644
index 000000000..c448c578d
--- /dev/null
+++ b/ports/esp32s2/common-hal/pulseio/PulseOut.c
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland 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 "common-hal/pulseio/PulseOut.h"
+
+#include "shared-bindings/pulseio/PWMOut.h"
+#include "py/runtime.h"
+
+// STATIC void turn_on(pulseio_pulseout_obj_t *pulseout) {
+// }
+
+// STATIC void turn_off(pulseio_pulseout_obj_t *pulseout) {
+// }
+
+// STATIC void start_timer(void) {
+// }
+
+// STATIC void pulseout_event_handler(void) {
+// }
+
+void pulseout_reset() {
+}
+
+void common_hal_pulseio_pulseout_construct(pulseio_pulseout_obj_t* self,
+                                           const pulseio_pwmout_obj_t* carrier) {
+    mp_raise_NotImplementedError(translate("PulseOut not supported on this chip"));
+}
+
+bool common_hal_pulseio_pulseout_deinited(pulseio_pulseout_obj_t* self) {
+    return false;
+}
+
+void common_hal_pulseio_pulseout_deinit(pulseio_pulseout_obj_t* self) {
+}
+
+void common_hal_pulseio_pulseout_send(pulseio_pulseout_obj_t* self, uint16_t* pulses, uint16_t length) {
+}
diff --git a/ports/esp32s2/common-hal/pulseio/PulseOut.h b/ports/esp32s2/common-hal/pulseio/PulseOut.h
new file mode 100644
index 000000000..f465d0079
--- /dev/null
+++ b/ports/esp32s2/common-hal/pulseio/PulseOut.h
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland 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_ESP32S2_COMMON_HAL_PULSEIO_PULSEOUT_H
+#define MICROPY_INCLUDED_ESP32S2_COMMON_HAL_PULSEIO_PULSEOUT_H
+
+#include "common-hal/microcontroller/Pin.h"
+#include "common-hal/pulseio/PWMOut.h"
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    pulseio_pwmout_obj_t *pwmout;
+} pulseio_pulseout_obj_t;
+
+void pulseout_reset(void);
+
+#endif // MICROPY_INCLUDED_ESP32S2_COMMON_HAL_PULSEIO_PULSEOUT_H
diff --git a/ports/esp32s2/common-hal/pulseio/__init__.c b/ports/esp32s2/common-hal/pulseio/__init__.c
new file mode 100644
index 000000000..2bee925bc
--- /dev/null
+++ b/ports/esp32s2/common-hal/pulseio/__init__.c
@@ -0,0 +1 @@
+// No pulseio module functions.
diff --git a/ports/esp32s2/mpconfigport.mk b/ports/esp32s2/mpconfigport.mk
index 5686579b4..fccb14ded 100644
--- a/ports/esp32s2/mpconfigport.mk
+++ b/ports/esp32s2/mpconfigport.mk
@@ -25,7 +25,7 @@ CIRCUITPY_FREQUENCYIO = 0
 CIRCUITPY_I2CPERIPHERAL = 0
 CIRCUITPY_MICROCONTROLLER = 1
 CIRCUITPY_NVM = 0
-CIRCUITPY_PULSEIO = 0
+CIRCUITPY_PULSEIO = 1
 CIRCUITPY_ROTARYIO = 0
 CIRCUITPY_RTC = 0
 CIRCUITPY_TOUCHIO = 0