mirror of
https://github.com/licsber/micropython.git
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df6567e634
Pretty much everyone needs to include map.h, since it's such an integral part of the Micro Python object implementation. Thus, the definitions are now in obj.h instead. map.h is removed.
273 lines
7.2 KiB
C
273 lines
7.2 KiB
C
#include <stdio.h>
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#include <stm32f4xx_hal.h>
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#include "usbd_cdc_msc_hid.h"
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#include "usbd_cdc_interface.h"
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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#include "runtime.h"
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#include "led.h"
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#include "pin.h"
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#include "build/pins.h"
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static const pin_obj_t *gLed[] = {
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&MICROPY_HW_LED1,
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#if defined(MICROPY_HW_LED2)
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&MICROPY_HW_LED2,
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#if defined(MICROPY_HW_LED3)
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&MICROPY_HW_LED3,
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#if defined(MICROPY_HW_LED4)
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&MICROPY_HW_LED4,
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#endif
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#endif
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#endif
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};
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#define NUM_LEDS (sizeof(gLed) / sizeof(gLed[0]))
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void led_init(void) {
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/* GPIO structure */
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GPIO_InitTypeDef GPIO_InitStructure;
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/* Configure I/O speed, mode, output type and pull */
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GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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GPIO_InitStructure.Mode = MICROPY_HW_LED_OTYPE;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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/* Turn off LEDs and initialize */
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for (int led = 0; led < NUM_LEDS; led++) {
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MICROPY_HW_LED_OFF(gLed[led]);
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GPIO_InitStructure.Pin = gLed[led]->pin_mask;
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HAL_GPIO_Init(gLed[led]->gpio, &GPIO_InitStructure);
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}
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#if defined(PYBV4) || defined(PYBV10)
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// LED4 (blue) is on PB4 which is TIM3_CH1
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// we use PWM on this channel to fade the LED
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// GPIO configuration
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GPIO_InitStructure.Pin = MICROPY_HW_LED4.pin_mask;
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GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Alternate = GPIO_AF2_TIM3;
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HAL_GPIO_Init(MICROPY_HW_LED4.gpio, &GPIO_InitStructure);
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// PWM mode configuration
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TIM_OC_InitTypeDef oc_init;
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oc_init.OCMode = TIM_OCMODE_PWM1;
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oc_init.Pulse = 0; // off
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oc_init.OCPolarity = TIM_OCPOLARITY_HIGH;
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oc_init.OCFastMode = TIM_OCFAST_DISABLE;
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HAL_TIM_PWM_ConfigChannel(&TIM3_Handle, &oc_init, TIM_CHANNEL_1);
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// start PWM
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TIM_CCxChannelCmd(TIM3, TIM_CHANNEL_1, TIM_CCx_ENABLE);
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#endif
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}
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void led_state(pyb_led_t led, int state) {
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if (led < 1 || led > NUM_LEDS) {
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return;
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}
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#if defined(PYBV4) || defined(PYBV10)
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if (led == 4) {
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if (state) {
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TIM3->CCR1 = 0xffff;
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} else {
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TIM3->CCR1 = 0;
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}
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return;
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}
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#endif
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const pin_obj_t *led_pin = gLed[led - 1];
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//printf("led_state(%d,%d)\n", led, state);
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if (state == 0) {
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// turn LED off
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MICROPY_HW_LED_OFF(led_pin);
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} else {
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// turn LED on
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MICROPY_HW_LED_ON(led_pin);
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}
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}
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void led_toggle(pyb_led_t led) {
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if (led < 1 || led > NUM_LEDS) {
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return;
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}
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#if defined(PYBV4) || defined(PYBV10)
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if (led == 4) {
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if (TIM3->CCR1 == 0) {
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TIM3->CCR1 = 0xffff;
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} else {
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TIM3->CCR1 = 0;
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}
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return;
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}
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#endif
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const pin_obj_t *led_pin = gLed[led - 1];
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GPIO_TypeDef *gpio = led_pin->gpio;
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// We don't know if we're turning the LED on or off, but we don't really
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// care. Just invert the state.
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if (gpio->ODR & led_pin->pin_mask) {
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// pin is high, make it low
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gpio->BSRRH = led_pin->pin_mask;
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} else {
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// pin is low, make it high
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gpio->BSRRL = led_pin->pin_mask;
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}
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}
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int led_get_intensity(pyb_led_t led) {
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if (led < 1 || led > NUM_LEDS) {
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return 0;
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}
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#if defined(PYBV4) || defined(PYBV10)
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if (led == 4) {
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machine_uint_t i = TIM3->CCR1 * 255 / ((USBD_CDC_POLLING_INTERVAL*1000) - 1);
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if (i > 255) {
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i = 255;
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}
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return i;
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}
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#endif
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const pin_obj_t *led_pin = gLed[led - 1];
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GPIO_TypeDef *gpio = led_pin->gpio;
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// TODO convert high/low to on/off depending on board
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if (gpio->ODR & led_pin->pin_mask) {
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// pin is high
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return 255;
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} else {
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// pin is low
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return 0;
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}
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}
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void led_set_intensity(pyb_led_t led, machine_int_t intensity) {
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#if defined(PYBV4) || defined(PYBV10)
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if (led == 4) {
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// set intensity using PWM pulse width
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if (intensity < 0) {
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intensity = 0;
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} else if (intensity >= 255) {
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intensity = 0xffff;
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} else {
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intensity = intensity * ((USBD_CDC_POLLING_INTERVAL*1000) - 1) / 255;
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}
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TIM3->CCR1 = intensity;
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return;
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}
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#endif
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// intensity not supported for this LED; just turn it on/off
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led_state(led, intensity > 0);
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}
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void led_debug(int n, int delay) {
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led_state(1, n & 1);
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led_state(2, n & 2);
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led_state(3, n & 4);
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led_state(4, n & 8);
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HAL_Delay(delay);
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}
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/******************************************************************************/
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/* Micro Python bindings */
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typedef struct _pyb_led_obj_t {
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mp_obj_base_t base;
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machine_uint_t led_id;
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} pyb_led_obj_t;
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STATIC const pyb_led_obj_t pyb_led_obj[NUM_LEDS] = {
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{{&pyb_led_type}, 1},
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#if defined(PYB_LED2)
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{{&pyb_led_type}, 2},
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#if defined(PYB_LED3)
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{{&pyb_led_type}, 3},
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#if defined(PYB_LED4)
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{{&pyb_led_type}, 4},
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#endif
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#endif
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#endif
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};
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void led_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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pyb_led_obj_t *self = self_in;
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print(env, "<LED %lu>", self->led_id);
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}
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STATIC mp_obj_t led_obj_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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// check arguments
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mp_check_nargs(n_args, 1, 1, n_kw, false);
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// get led number
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machine_int_t led_id = mp_obj_get_int(args[0]) - 1;
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// check led number
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if (!(0 <= led_id && led_id < NUM_LEDS)) {
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "Led %d does not exist", led_id));
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}
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// return static led object
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return (mp_obj_t)&pyb_led_obj[led_id];
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}
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mp_obj_t led_obj_on(mp_obj_t self_in) {
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pyb_led_obj_t *self = self_in;
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led_state(self->led_id, 1);
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return mp_const_none;
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}
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mp_obj_t led_obj_off(mp_obj_t self_in) {
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pyb_led_obj_t *self = self_in;
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led_state(self->led_id, 0);
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return mp_const_none;
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}
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mp_obj_t led_obj_toggle(mp_obj_t self_in) {
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pyb_led_obj_t *self = self_in;
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led_toggle(self->led_id);
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return mp_const_none;
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}
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mp_obj_t led_obj_intensity(uint n_args, const mp_obj_t *args) {
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pyb_led_obj_t *self = args[0];
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if (n_args == 1) {
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return mp_obj_new_int(led_get_intensity(self->led_id));
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} else {
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led_set_intensity(self->led_id, mp_obj_get_int(args[1]));
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_on_obj, led_obj_on);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_off_obj, led_obj_off);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_toggle_obj, led_obj_toggle);
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(led_obj_intensity_obj, 1, 2, led_obj_intensity);
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STATIC const mp_map_elem_t led_locals_dict_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR_on), (mp_obj_t)&led_obj_on_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_off), (mp_obj_t)&led_obj_off_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_toggle), (mp_obj_t)&led_obj_toggle_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_intensity), (mp_obj_t)&led_obj_intensity_obj },
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};
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STATIC MP_DEFINE_CONST_DICT(led_locals_dict, led_locals_dict_table);
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const mp_obj_type_t pyb_led_type = {
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{ &mp_type_type },
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.name = MP_QSTR_Led,
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.print = led_obj_print,
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.make_new = led_obj_make_new,
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.locals_dict = (mp_obj_t)&led_locals_dict,
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};
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