2014-05-03 22:27:38 +00:00
|
|
|
/*
|
|
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
|
|
*
|
|
|
|
* The MIT License (MIT)
|
|
|
|
*
|
|
|
|
* Copyright (c) 2013, 2014 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.
|
|
|
|
*/
|
|
|
|
|
2014-03-13 01:06:26 +00:00
|
|
|
#include <stdio.h>
|
|
|
|
#include <stm32f4xx_hal.h>
|
|
|
|
|
2015-01-01 21:06:20 +00:00
|
|
|
#include "py/nlr.h"
|
|
|
|
#include "py/runtime.h"
|
2014-04-02 14:09:36 +00:00
|
|
|
#include "timer.h"
|
2014-03-13 01:06:26 +00:00
|
|
|
#include "led.h"
|
|
|
|
#include "pin.h"
|
2014-04-17 17:03:27 +00:00
|
|
|
#include "genhdr/pins.h"
|
2014-03-13 01:06:26 +00:00
|
|
|
|
2015-01-16 05:45:21 +00:00
|
|
|
#if defined(MICROPY_HW_LED1)
|
|
|
|
|
2015-02-22 17:54:07 +00:00
|
|
|
// default is to not PWM LED4
|
|
|
|
#if !defined(MICROPY_HW_LED4_PWM)
|
|
|
|
#define MICROPY_HW_LED4_PWM (0)
|
|
|
|
#endif
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \moduleref pyb
|
|
|
|
/// \class LED - LED object
|
|
|
|
///
|
|
|
|
/// The LED object controls an individual LED (Light Emitting Diode).
|
|
|
|
|
2014-04-01 17:20:52 +00:00
|
|
|
typedef struct _pyb_led_obj_t {
|
|
|
|
mp_obj_base_t base;
|
2014-07-03 12:25:24 +00:00
|
|
|
mp_uint_t led_id;
|
2014-04-01 17:20:52 +00:00
|
|
|
const pin_obj_t *led_pin;
|
|
|
|
} pyb_led_obj_t;
|
|
|
|
|
|
|
|
STATIC const pyb_led_obj_t pyb_led_obj[] = {
|
|
|
|
{{&pyb_led_type}, 1, &MICROPY_HW_LED1},
|
2014-03-30 11:30:35 +00:00
|
|
|
#if defined(MICROPY_HW_LED2)
|
2014-04-01 17:20:52 +00:00
|
|
|
{{&pyb_led_type}, 2, &MICROPY_HW_LED2},
|
2014-03-30 11:30:35 +00:00
|
|
|
#if defined(MICROPY_HW_LED3)
|
2014-04-01 17:20:52 +00:00
|
|
|
{{&pyb_led_type}, 3, &MICROPY_HW_LED3},
|
2014-03-30 11:30:35 +00:00
|
|
|
#if defined(MICROPY_HW_LED4)
|
2014-04-01 17:20:52 +00:00
|
|
|
{{&pyb_led_type}, 4, &MICROPY_HW_LED4},
|
2014-03-13 01:06:26 +00:00
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
};
|
2014-06-19 16:54:34 +00:00
|
|
|
#define NUM_LEDS MP_ARRAY_SIZE(pyb_led_obj)
|
2014-03-13 01:06:26 +00:00
|
|
|
|
|
|
|
void led_init(void) {
|
|
|
|
/* GPIO structure */
|
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
|
|
|
|
|
|
|
/* Configure I/O speed, mode, output type and pull */
|
|
|
|
GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
|
2014-03-30 11:30:35 +00:00
|
|
|
GPIO_InitStructure.Mode = MICROPY_HW_LED_OTYPE;
|
2014-03-13 01:06:26 +00:00
|
|
|
GPIO_InitStructure.Pull = GPIO_NOPULL;
|
|
|
|
|
|
|
|
/* Turn off LEDs and initialize */
|
|
|
|
for (int led = 0; led < NUM_LEDS; led++) {
|
2014-04-01 17:20:52 +00:00
|
|
|
const pin_obj_t *led_pin = pyb_led_obj[led].led_pin;
|
|
|
|
MICROPY_HW_LED_OFF(led_pin);
|
|
|
|
GPIO_InitStructure.Pin = led_pin->pin_mask;
|
|
|
|
HAL_GPIO_Init(led_pin->gpio, &GPIO_InitStructure);
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
2014-03-22 23:54:13 +00:00
|
|
|
|
2015-02-22 17:54:07 +00:00
|
|
|
#if MICROPY_HW_LED4_PWM
|
2014-03-22 23:54:13 +00:00
|
|
|
// LED4 (blue) is on PB4 which is TIM3_CH1
|
|
|
|
// we use PWM on this channel to fade the LED
|
|
|
|
|
2014-04-02 14:09:36 +00:00
|
|
|
// LED3 (yellow) is on PA15 which has TIM2_CH1, so we could PWM that as well
|
|
|
|
|
2014-03-22 23:54:13 +00:00
|
|
|
// GPIO configuration
|
2014-03-30 11:30:35 +00:00
|
|
|
GPIO_InitStructure.Pin = MICROPY_HW_LED4.pin_mask;
|
2014-03-22 23:54:13 +00:00
|
|
|
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
|
|
|
|
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
|
|
|
|
GPIO_InitStructure.Pull = GPIO_NOPULL;
|
|
|
|
GPIO_InitStructure.Alternate = GPIO_AF2_TIM3;
|
2014-03-30 11:30:35 +00:00
|
|
|
HAL_GPIO_Init(MICROPY_HW_LED4.gpio, &GPIO_InitStructure);
|
2014-03-22 23:54:13 +00:00
|
|
|
|
|
|
|
// PWM mode configuration
|
|
|
|
TIM_OC_InitTypeDef oc_init;
|
|
|
|
oc_init.OCMode = TIM_OCMODE_PWM1;
|
|
|
|
oc_init.Pulse = 0; // off
|
|
|
|
oc_init.OCPolarity = TIM_OCPOLARITY_HIGH;
|
|
|
|
oc_init.OCFastMode = TIM_OCFAST_DISABLE;
|
|
|
|
HAL_TIM_PWM_ConfigChannel(&TIM3_Handle, &oc_init, TIM_CHANNEL_1);
|
|
|
|
|
|
|
|
// start PWM
|
|
|
|
TIM_CCxChannelCmd(TIM3, TIM_CHANNEL_1, TIM_CCx_ENABLE);
|
2015-02-22 17:54:07 +00:00
|
|
|
#endif
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void led_state(pyb_led_t led, int state) {
|
|
|
|
if (led < 1 || led > NUM_LEDS) {
|
|
|
|
return;
|
|
|
|
}
|
2015-02-22 17:54:07 +00:00
|
|
|
if (MICROPY_HW_LED4_PWM && led == 4) {
|
2014-03-22 23:54:13 +00:00
|
|
|
if (state) {
|
|
|
|
TIM3->CCR1 = 0xffff;
|
|
|
|
} else {
|
|
|
|
TIM3->CCR1 = 0;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
2014-04-01 17:20:52 +00:00
|
|
|
const pin_obj_t *led_pin = pyb_led_obj[led - 1].led_pin;
|
2014-03-23 00:25:09 +00:00
|
|
|
//printf("led_state(%d,%d)\n", led, state);
|
2014-03-13 01:06:26 +00:00
|
|
|
if (state == 0) {
|
|
|
|
// turn LED off
|
2014-03-30 11:30:35 +00:00
|
|
|
MICROPY_HW_LED_OFF(led_pin);
|
2014-03-13 01:06:26 +00:00
|
|
|
} else {
|
|
|
|
// turn LED on
|
2014-03-30 11:30:35 +00:00
|
|
|
MICROPY_HW_LED_ON(led_pin);
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void led_toggle(pyb_led_t led) {
|
|
|
|
if (led < 1 || led > NUM_LEDS) {
|
|
|
|
return;
|
|
|
|
}
|
2014-03-23 00:25:09 +00:00
|
|
|
|
2015-02-22 17:54:07 +00:00
|
|
|
if (MICROPY_HW_LED4_PWM && led == 4) {
|
2014-03-23 00:25:09 +00:00
|
|
|
if (TIM3->CCR1 == 0) {
|
|
|
|
TIM3->CCR1 = 0xffff;
|
|
|
|
} else {
|
|
|
|
TIM3->CCR1 = 0;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2014-06-17 18:57:17 +00:00
|
|
|
// toggle the output data register to toggle the LED state
|
2014-04-01 17:20:52 +00:00
|
|
|
const pin_obj_t *led_pin = pyb_led_obj[led - 1].led_pin;
|
2014-06-17 18:57:17 +00:00
|
|
|
led_pin->gpio->ODR ^= led_pin->pin_mask;
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
|
|
|
|
2014-03-23 00:25:09 +00:00
|
|
|
int led_get_intensity(pyb_led_t led) {
|
2014-03-22 23:54:13 +00:00
|
|
|
if (led < 1 || led > NUM_LEDS) {
|
|
|
|
return 0;
|
|
|
|
}
|
2014-03-23 00:25:09 +00:00
|
|
|
|
2015-02-22 17:54:07 +00:00
|
|
|
if (MICROPY_HW_LED4_PWM && led == 4) {
|
2014-07-03 12:25:24 +00:00
|
|
|
mp_uint_t i = (TIM3->CCR1 * 255 + (USBD_CDC_POLLING_INTERVAL*1000) - 2) / ((USBD_CDC_POLLING_INTERVAL*1000) - 1);
|
2014-03-23 00:25:09 +00:00
|
|
|
if (i > 255) {
|
|
|
|
i = 255;
|
|
|
|
}
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
2014-04-01 17:20:52 +00:00
|
|
|
const pin_obj_t *led_pin = pyb_led_obj[led - 1].led_pin;
|
2014-03-22 23:54:13 +00:00
|
|
|
GPIO_TypeDef *gpio = led_pin->gpio;
|
|
|
|
|
|
|
|
// TODO convert high/low to on/off depending on board
|
|
|
|
if (gpio->ODR & led_pin->pin_mask) {
|
|
|
|
// pin is high
|
2014-03-23 00:25:09 +00:00
|
|
|
return 255;
|
2014-03-22 23:54:13 +00:00
|
|
|
} else {
|
|
|
|
// pin is low
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-07-03 12:25:24 +00:00
|
|
|
void led_set_intensity(pyb_led_t led, mp_int_t intensity) {
|
2015-02-22 17:54:07 +00:00
|
|
|
if (MICROPY_HW_LED4_PWM && led == 4) {
|
2014-03-23 00:25:09 +00:00
|
|
|
// set intensity using PWM pulse width
|
|
|
|
if (intensity < 0) {
|
|
|
|
intensity = 0;
|
|
|
|
} else if (intensity >= 255) {
|
|
|
|
intensity = 0xffff;
|
|
|
|
} else {
|
|
|
|
intensity = intensity * ((USBD_CDC_POLLING_INTERVAL*1000) - 1) / 255;
|
|
|
|
}
|
|
|
|
TIM3->CCR1 = intensity;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// intensity not supported for this LED; just turn it on/off
|
|
|
|
led_state(led, intensity > 0);
|
|
|
|
}
|
|
|
|
|
2014-03-20 23:33:30 +00:00
|
|
|
void led_debug(int n, int delay) {
|
|
|
|
led_state(1, n & 1);
|
|
|
|
led_state(2, n & 2);
|
|
|
|
led_state(3, n & 4);
|
|
|
|
led_state(4, n & 8);
|
|
|
|
HAL_Delay(delay);
|
|
|
|
}
|
|
|
|
|
2014-03-13 01:06:26 +00:00
|
|
|
/******************************************************************************/
|
|
|
|
/* Micro Python bindings */
|
|
|
|
|
2015-04-09 22:56:15 +00:00
|
|
|
void led_obj_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
|
2014-03-13 01:06:26 +00:00
|
|
|
pyb_led_obj_t *self = self_in;
|
2015-04-09 22:56:15 +00:00
|
|
|
mp_printf(print, "LED(%lu)", self->led_id);
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \classmethod \constructor(id)
|
|
|
|
/// Create an LED object associated with the given LED:
|
|
|
|
///
|
|
|
|
/// - `id` is the LED number, 1-4.
|
2014-08-29 23:35:11 +00:00
|
|
|
STATIC mp_obj_t led_obj_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
|
2014-03-24 11:48:39 +00:00
|
|
|
// check arguments
|
2014-04-19 23:16:30 +00:00
|
|
|
mp_arg_check_num(n_args, n_kw, 1, 1, false);
|
2014-03-24 11:48:39 +00:00
|
|
|
|
|
|
|
// get led number
|
2014-07-03 12:25:24 +00:00
|
|
|
mp_int_t led_id = mp_obj_get_int(args[0]);
|
2014-03-24 11:48:39 +00:00
|
|
|
|
|
|
|
// check led number
|
2014-04-30 18:23:21 +00:00
|
|
|
if (!(1 <= led_id && led_id <= NUM_LEDS)) {
|
2015-04-11 20:50:53 +00:00
|
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "LED(%d) does not exist", led_id));
|
2014-03-24 11:48:39 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// return static led object
|
2014-04-30 18:23:21 +00:00
|
|
|
return (mp_obj_t)&pyb_led_obj[led_id - 1];
|
2014-03-24 11:48:39 +00:00
|
|
|
}
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method on()
|
|
|
|
/// Turn the LED on.
|
2014-03-13 01:06:26 +00:00
|
|
|
mp_obj_t led_obj_on(mp_obj_t self_in) {
|
|
|
|
pyb_led_obj_t *self = self_in;
|
|
|
|
led_state(self->led_id, 1);
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method off()
|
|
|
|
/// Turn the LED off.
|
2014-03-13 01:06:26 +00:00
|
|
|
mp_obj_t led_obj_off(mp_obj_t self_in) {
|
|
|
|
pyb_led_obj_t *self = self_in;
|
|
|
|
led_state(self->led_id, 0);
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method toggle()
|
|
|
|
/// Toggle the LED between on and off.
|
2014-03-13 01:06:26 +00:00
|
|
|
mp_obj_t led_obj_toggle(mp_obj_t self_in) {
|
|
|
|
pyb_led_obj_t *self = self_in;
|
|
|
|
led_toggle(self->led_id);
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method intensity([value])
|
|
|
|
/// Get or set the LED intensity. Intensity ranges between 0 (off) and 255 (full on).
|
|
|
|
/// If no argument is given, return the LED intensity.
|
|
|
|
/// If an argument is given, set the LED intensity and return `None`.
|
2014-08-29 23:35:11 +00:00
|
|
|
mp_obj_t led_obj_intensity(mp_uint_t n_args, const mp_obj_t *args) {
|
2014-03-22 23:54:13 +00:00
|
|
|
pyb_led_obj_t *self = args[0];
|
2014-03-23 00:25:09 +00:00
|
|
|
if (n_args == 1) {
|
|
|
|
return mp_obj_new_int(led_get_intensity(self->led_id));
|
2014-03-22 23:54:13 +00:00
|
|
|
} else {
|
2014-03-23 00:25:09 +00:00
|
|
|
led_set_intensity(self->led_id, mp_obj_get_int(args[1]));
|
2014-03-22 23:54:13 +00:00
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_on_obj, led_obj_on);
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_off_obj, led_obj_off);
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_toggle_obj, led_obj_toggle);
|
2014-03-23 00:25:09 +00:00
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(led_obj_intensity_obj, 1, 2, led_obj_intensity);
|
2014-03-13 01:06:26 +00:00
|
|
|
|
2014-03-26 21:47:19 +00:00
|
|
|
STATIC const mp_map_elem_t led_locals_dict_table[] = {
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_on), (mp_obj_t)&led_obj_on_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_off), (mp_obj_t)&led_obj_off_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_toggle), (mp_obj_t)&led_obj_toggle_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_intensity), (mp_obj_t)&led_obj_intensity_obj },
|
2014-03-13 01:06:26 +00:00
|
|
|
};
|
|
|
|
|
2014-03-26 21:47:19 +00:00
|
|
|
STATIC MP_DEFINE_CONST_DICT(led_locals_dict, led_locals_dict_table);
|
|
|
|
|
2014-03-24 11:48:39 +00:00
|
|
|
const mp_obj_type_t pyb_led_type = {
|
2014-03-13 01:06:26 +00:00
|
|
|
{ &mp_type_type },
|
2014-04-18 23:54:33 +00:00
|
|
|
.name = MP_QSTR_LED,
|
2014-03-13 01:06:26 +00:00
|
|
|
.print = led_obj_print,
|
2014-03-24 11:48:39 +00:00
|
|
|
.make_new = led_obj_make_new,
|
2014-03-26 21:47:19 +00:00
|
|
|
.locals_dict = (mp_obj_t)&led_locals_dict,
|
2014-03-13 01:06:26 +00:00
|
|
|
};
|
2015-01-16 05:45:21 +00:00
|
|
|
|
|
|
|
#else
|
|
|
|
// For boards with no LEDs, we leave an empty function here so that we don't
|
|
|
|
// have to put conditionals everywhere.
|
|
|
|
void led_init(void) {
|
|
|
|
}
|
|
|
|
void led_state(pyb_led_t led, int state) {
|
|
|
|
}
|
|
|
|
void led_toggle(pyb_led_t led) {
|
|
|
|
}
|
|
|
|
#endif // defined(MICROPY_HW_LED1)
|