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-rw-r--r--atmel-samd/modmachine_pwm.c192
1 files changed, 0 insertions, 192 deletions
diff --git a/atmel-samd/modmachine_pwm.c b/atmel-samd/modmachine_pwm.c
deleted file mode 100644
index 214210f50..000000000
--- a/atmel-samd/modmachine_pwm.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 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 <stdio.h>
-#include <stdint.h>
-
-#include "py/runtime.h"
-#include "modmachine_pin.h"
-#include "modmachine_pwm.h"
-
-#include "asf/sam0/drivers/tc/tc.h"
-#include "asf/sam0/drivers/tcc/tcc.h"
-
-typedef struct _pwm_obj_t {
- mp_obj_base_t base;
- const pin_obj_t *pin;
- bool using_primary_timer;
- struct tc_module tc_instance;
- struct tcc_module tcc_instance;
-} pwm_obj_t;
-
-/******************************************************************************/
-// MicroPython bindings for PWM
-
-STATIC void pwm_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
- pwm_obj_t *self = MP_OBJ_TO_PTR(self_in);
- mp_printf(print, "PWM(%s", self->pin->name);
- mp_printf(print, ", freq=%u, duty=%u", 0, 0);
- mp_printf(print, ")");
-}
-/// \classmethod \constructor(pin)
-/// Create a PWM object associated with the given pin. This allows you to write PWM
-/// signals out on the given pin. Frequency is currently fixed at ~735Hz like Arduino.
-STATIC mp_obj_t pwm_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
- mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
- mp_obj_t pin_obj = args[0];
- const pin_obj_t *pin = pin_find(pin_obj);
-
- // create PWM object from the given pin
- pwm_obj_t *self = m_new_obj(pwm_obj_t);
- self->base.type = &pwm_type;
- self->pin = pin;
- self->using_primary_timer = true;
-
- mp_map_t kw_args;
- mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
- enum { ARG_duty };
- static const mp_arg_t allowed_args[] = {
- { MP_QSTR_duty, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
- };
- mp_arg_val_t parsed_args[MP_ARRAY_SIZE(allowed_args)];
- mp_arg_parse_all(n_args - 1, args + 1, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, parsed_args);
-
- if (pin->primary_timer.tc == 0 && pin->primary_timer.tcc == 0 &&
- pin->secondary_timer.tc == 0 && pin->secondary_timer.tcc == 0) {
- nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
- "PWM not supported on pin %q", self->pin->name));
- }
-
- if (parsed_args[ARG_duty].u_int < 0 || parsed_args[ARG_duty].u_int > 255) {
- nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
- "PWM duty must be between 0 and 255 (8 bit resolution), not %d",
- parsed_args[ARG_duty].u_int));
- }
- uint8_t duty = parsed_args[ARG_duty].u_int;
-
- // TODO(tannewt): Support output on multiple timer channels at once.
- const pin_timer_t* t = &pin->primary_timer;
- if (t->tcc != 0) {
- struct tcc_config config_tcc;
- tcc_get_config_defaults(&config_tcc, t->tcc);
-
- config_tcc.counter.clock_prescaler = TCC_CLOCK_PRESCALER_DIV256;
- config_tcc.counter.period = 0xFF;
- config_tcc.compare.wave_generation = TCC_WAVE_GENERATION_SINGLE_SLOPE_PWM;
- config_tcc.compare.match[t->channel] = duty;
-
- config_tcc.pins.enable_wave_out_pin[t->wave_output] = true;
- config_tcc.pins.wave_out_pin[t->wave_output] = t->pin;
- config_tcc.pins.wave_out_pin_mux[t->wave_output] = t->mux;
-
- tcc_init(&self->tcc_instance, t->tcc, &config_tcc);
-
- tcc_enable(&self->tcc_instance);
- } else {
- struct tc_config config_tc;
- tc_get_config_defaults(&config_tc);
-
- config_tc.counter_size = TC_COUNTER_SIZE_8BIT;
- config_tc.wave_generation = TC_WAVE_GENERATION_NORMAL_PWM;
- config_tc.clock_prescaler = TC_CLOCK_PRESCALER_DIV256;
- config_tc.counter_8_bit.period = 0xff;
- config_tc.counter_8_bit.compare_capture_channel[t->channel] = duty;
-
- config_tc.pwm_channel[t->wave_output].enabled = true;
- config_tc.pwm_channel[t->wave_output].pin_out = t->pin;
- config_tc.pwm_channel[t->wave_output].pin_mux = t->mux;
-
- tc_init(&self->tc_instance, t->tc, &config_tc);
-
- tc_enable(&self->tc_instance);
- }
-
- return MP_OBJ_FROM_PTR(self);
-}
-
-STATIC mp_obj_t pwm_del(mp_obj_t self_in) {
- pwm_obj_t *self = MP_OBJ_TO_PTR(self_in);
- const pin_timer_t* t = &self->pin->primary_timer;
- if (!self->using_primary_timer) {
- t = &self->pin->secondary_timer;
- }
- if (t->tcc != 0) {
- tcc_disable(&self->tcc_instance);
- } else {
- tc_disable(&self->tc_instance);
- }
- return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pwm_del_obj, pwm_del);
-
-// 8 bit resolution
-STATIC mp_obj_t pwm_duty(size_t n_args, const mp_obj_t *args) {
- pwm_obj_t *self = MP_OBJ_TO_PTR(args[0]);
-
- const pin_timer_t* t = &self->pin->primary_timer;
- if (!self->using_primary_timer) {
- t = &self->pin->secondary_timer;
- }
-
- if (n_args == 1) {
- uint8_t duty;
- if (t->tcc != 0) {
- duty = tcc_get_capture_value(&self->tcc_instance, t->channel);
- } else {
- duty = tc_get_capture_value(&self->tc_instance, t->channel);
- }
- return MP_OBJ_NEW_SMALL_INT(duty);
- } else {
- mp_int_t duty = mp_obj_get_int(args[1]);
- if (duty < 0 || duty > 255) {
- nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
- "PWM duty must be between 0 and 255 (8 bit resolution), not %d",
- duty));
- }
- if (t->tcc != 0) {
- tcc_set_compare_value(&self->tcc_instance, t->channel, duty);
- } else {
- tc_set_compare_value(&self->tc_instance, t->channel, duty);
- }
- return mp_const_none;
- }
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pwm_duty_obj, 1, 2, pwm_duty);
-
-STATIC const mp_rom_map_elem_t pwm_locals_dict_table[] = {
- { MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&pwm_del_obj) },
- { MP_ROM_QSTR(MP_QSTR_duty), MP_ROM_PTR(&pwm_duty_obj) },
-};
-
-STATIC MP_DEFINE_CONST_DICT(pwm_locals_dict, pwm_locals_dict_table);
-
-const mp_obj_type_t pwm_type = {
- { &mp_type_type },
- .name = MP_QSTR_PWM,
- .print = pwm_print,
- .make_new = pwm_make_new,
- .locals_dict = (mp_obj_dict_t*)&pwm_locals_dict,
-};
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