oximeter_ble_client/app/src/board/board_light_ctrl.c

#include "board_light_ctrl.h"

#include "board.h"
#include "znordic.h"

#define BLINK_CNT       1
#define BLINK_PERIOD_MS (100)

#define LIGHT_PWM_DRIVER 1

// LED_GREEN_PIN

#if LIGHT_PWM_DRIVER

typedef struct {
  nrf_drv_pwm_t               driver;
  nrf_pwm_values_individual_t seq_values;
  nrf_pwm_sequence_t          seq;
  nrf_drv_pwm_config_t        config;
} pwm_light_ctrl_t;

#endif

static pwm_light_ctrl_t light_ctrl = {
    .driver     = NRF_DRV_PWM_INSTANCE(LIGHT_PWM_INSTANCE),
    .seq_values = {0},
    .seq =
        {
            .values.p_individual = &light_ctrl.seq_values,
            .length              = NRF_PWM_VALUES_LENGTH(light_ctrl.seq_values),
            .repeats             = 0,
            .end_delay           = 0,
        },
    .config =
        {

            .output_pins =
                {
                    LED_GREEN_PIN,  //
                    NRF_DRV_PWM_PIN_NOT_USED,
                    NRF_DRV_PWM_PIN_NOT_USED,
                    NRF_DRV_PWM_PIN_NOT_USED,
                },
            .irq_priority = APP_IRQ_PRIORITY_LOWEST,
            .base_clock   = NRF_PWM_CLK_250kHz,
            .count_mode   = NRF_PWM_MODE_UP,
            .top_value    = 100,  // 125kHz / 46 = 2.717k
            .load_mode    = NRF_PWM_LOAD_INDIVIDUAL,
            .step_mode    = NRF_PWM_STEP_AUTO,

        },
};

static LightEffect m_light_effect;
static bool        m_led_green_light_state;
static int         m_blink_cnt;
APP_TIMER_DEF(m_green_light_effect_tmr);

void BoardLight_setGreenLightState(bool state) {
#if LIGHT_PWM_DRIVER
  if (state) {
    light_ctrl.seq_values.channel_0 = 95;  // ����ռ�ձȣ���ֵ���󲻳��� top_value
    nrfx_pwm_simple_playback(&light_ctrl.driver, &light_ctrl.seq, 1, NRF_DRV_PWM_FLAG_LOOP);
  } else {
    nrfx_pwm_stop(&light_ctrl.driver, true);
  }
#else
  if (state) {
    nrf_gpio_pin_set(LED_GREEN_PIN);
    m_led_green_light_state = true;
  } else {
    nrf_gpio_pin_clear(LED_GREEN_PIN);
    m_led_green_light_state = false;
  }
#endif
}

static void BoardLight_effect_tmr_handler(void* p_context) {  //
  if (m_light_effect == kLightEffect_close) {
    if (m_led_green_light_state) {
      BoardLight_setGreenLightState(false);
    }
  } else if (m_light_effect == kLightEffect_open) {
    if (!m_led_green_light_state) {
      BoardLight_setGreenLightState(true);
    }
  } else if (m_light_effect == kLightEffect_slowFlash) {
    if (m_blink_cnt < 2) {
      if (m_blink_cnt % 2 == 0) {
        BoardLight_setGreenLightState(true);
      } else if (m_blink_cnt % 2 == 1) {
        BoardLight_setGreenLightState(false);
      }
    } else {
      if (BLINK_PERIOD_MS * m_blink_cnt >= 1000) {
        m_blink_cnt = 0;
        return;
      }
    }
  }
  m_blink_cnt++;
}

void BoardLight_Init() {
  ZERROR_CHECK(app_timer_create(&m_green_light_effect_tmr, APP_TIMER_MODE_REPEATED, BoardLight_effect_tmr_handler));
#if LIGHT_PWM_DRIVER
  APP_ERROR_CHECK(nrfx_pwm_init(&light_ctrl.driver, &light_ctrl.config, NULL));
#else
  znrf_gpio_cfg_output(LED_GREEN_PIN, NRF_GPIO_PIN_NOPULL);
#endif
}
void BoardLight_load() {}
void BoardLight_unload() { BoardLight_setGreenLightEffect(kLightEffect_close); }

void BoardLight_toggleGreenLightState() { nrf_gpio_pin_toggle(LED_GREEN_PIN); }

void BoardLight_setGreenLightEffect(LightEffect effect) {
  m_light_effect = effect;

  switch (effect) {
    case kLightEffect_close:
      app_timer_stop(m_green_light_effect_tmr);
      BoardLight_setGreenLightState(false);
      break;
    case kLightEffect_open:
      app_timer_stop(m_green_light_effect_tmr);
      BoardLight_setGreenLightState(true);
      break;
    case kLightEffect_slowFlash:
      app_timer_start(m_green_light_effect_tmr, APP_TIMER_TICKS(BLINK_PERIOD_MS), NULL);
      break;
    default:
      break;
  }
  return;
}