Removed old code snippets

1 files changed, 0 insertions, 208 deletions

diff --git a/ports/nrf/common-hal/pulseio/PulseIn.c b/ports/nrf/common-hal/pulseio/PulseIn.c
index c343bffac..a6f1bf10d 100644
--- a/ports/nrf/common-hal/pulseio/PulseIn.c
+++ b/ports/nrf/common-hal/pulseio/PulseIn.c
@@ -85,211 +85,3 @@ uint16_t common_hal_pulseio_pulsein_get_len(pulseio_pulsein_obj_t* self) {
 uint16_t common_hal_pulseio_pulsein_get_item(pulseio_pulsein_obj_t* self, int16_t index) {
   return 0xadaf;
 }
-
-
-#if 0
-
-static pulseio_pulsein_obj_t *active_pulseins[EIC_NUMBER_OF_INTERRUPTS];
-static uint64_t last_ms[EIC_NUMBER_OF_INTERRUPTS];
-static uint16_t last_us[EIC_NUMBER_OF_INTERRUPTS];
-
-void pulsein_reset(void) {
-    for (int i = 0; i < EIC_NUMBER_OF_INTERRUPTS; i++) {
-        if (active_pulseins[i] != NULL) {
-            extint_chan_disable_callback(i, EXTINT_CALLBACK_TYPE_DETECT);
-        }
-        active_pulseins[i] = NULL;
-        last_ms[i] = 0;
-        last_us[i] = 0;
-    }
-}
-
-static void pulsein_set_config(pulseio_pulsein_obj_t* self, bool first_edge) {
-    struct extint_chan_conf config;
-    extint_chan_get_config_defaults(&config);
-    config.gpio_pin            = self->pin;
-    config.gpio_pin_pull       = EXTINT_PULL_NONE;
-    config.filter_input_signal = true;
-
-    if (!first_edge) {
-        config.detection_criteria  = EXTINT_DETECT_BOTH;
-    } else if (self->idle_state) {
-        config.detection_criteria  = EXTINT_DETECT_FALLING;
-    } else {
-        config.detection_criteria  = EXTINT_DETECT_RISING;
-    }
-    extint_chan_disable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
-    extint_chan_set_config(self->channel, &config);
-    // Clear any interrupts that may have triggered without notifying the CPU.
-    EIC->INTFLAG.reg |=  (1UL << self->channel);
-    extint_chan_enable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
-}
-
-static void pulsein_callback(void) {
-    // Grab the current time first.
-    uint16_t current_us = tc_get_count_value(&ms_timer);
-    // Add the overflow flag to account for tick interrupts that are blocked by
-    // this interrupt.
-    uint64_t current_ms = ticks_ms + TC5->COUNT16.INTFLAG.bit.OVF;
-    pulseio_pulsein_obj_t* self = active_pulseins[extint_get_current_channel()];
-    current_us = current_us * 1000 / self->ticks_per_ms;
-    if (self->first_edge) {
-        self->first_edge = false;
-        pulsein_set_config(self, false);
-    } else {
-        uint32_t ms_diff = current_ms - last_ms[self->channel];
-        uint16_t us_diff = current_us - last_us[self->channel];
-        uint32_t total_diff = us_diff;
-        if (last_us[self->channel] > current_us) {
-            total_diff = 1000 + current_us - last_us[self->channel];
-            if (ms_diff > 1) {
-                total_diff += (ms_diff - 1) * 1000;
-            }
-        } else {
-            total_diff += ms_diff * 1000;
-        }
-        uint16_t duration = 0xffff;
-        if (total_diff < duration) {
-            duration = total_diff;
-        }
-
-        uint16_t i = (self->start + self->len) % self->maxlen;
-        self->buffer[i] = duration;
-        if (self->len < self->maxlen) {
-            self->len++;
-        } else {
-            self->start++;
-        }
-    }
-    last_ms[self->channel] = current_ms;
-    last_us[self->channel] = current_us;
-}
-
-void common_hal_pulseio_pulsein_construct(pulseio_pulsein_obj_t* self,
-        const mcu_pin_obj_t* pin, uint16_t maxlen, bool idle_state) {
-    if (!pin->has_extint) {
-        mp_raise_RuntimeError("No hardware support on pin");
-    }
-    // TODO(tannewt): Switch to checking actual extint peripheral state when other
-    // classes use extints.
-    if (active_pulseins[pin->extint_channel] != NULL) {
-        mp_raise_RuntimeError("EXTINT channel already in use");
-    }
-
-    self->buffer = (uint16_t *) gc_alloc(maxlen * sizeof(uint16_t), false);
-    if (self->buffer == NULL) {
-        mp_raise_msg_varg(&mp_type_MemoryError, "Failed to allocate RX buffer of %d bytes", maxlen * sizeof(uint16_t));
-    }
-    self->channel = pin->extint_channel;
-    self->pin = pin->pin;
-    self->maxlen = maxlen;
-    self->idle_state = idle_state;
-    self->start = 0;
-    self->len = 0;
-    self->first_edge = true;
-    self->ticks_per_ms = (system_cpu_clock_get_hz() / 1000 - 1);
-
-    active_pulseins[pin->extint_channel] = self;
-
-    pulsein_set_config(self, true);
-    extint_register_callback(
-        pulsein_callback,
-        self->channel,
-        EXTINT_CALLBACK_TYPE_DETECT);
-    extint_chan_enable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
-}
-
-bool common_hal_pulseio_pulsein_deinited(pulseio_pulsein_obj_t* self) {
-    return self->pin == NO_PIN;
-}
-
-void common_hal_pulseio_pulsein_deinit(pulseio_pulsein_obj_t* self) {
-    if (common_hal_pulseio_pulsein_deinited(self)) {
-        return;
-    }
-    extint_chan_disable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
-    active_pulseins[self->channel] = NULL;
-    reset_pin(self->pin);
-    self->pin = NO_PIN;
-}
-
-void common_hal_pulseio_pulsein_pause(pulseio_pulsein_obj_t* self) {
-    extint_chan_disable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
-}
-
-void common_hal_pulseio_pulsein_resume(pulseio_pulsein_obj_t* self,
-        uint16_t trigger_duration) {
-    // Send the trigger pulse.
-    if (trigger_duration > 0) {
-        struct port_config pin_conf;
-        port_get_config_defaults(&pin_conf);
-
-        pin_conf.direction  = PORT_PIN_DIR_OUTPUT;
-        pin_conf.input_pull = PORT_PIN_PULL_NONE;
-        port_pin_set_config(self->pin, &pin_conf);
-
-        // TODO(tannewt): delay_us isn't exactly correct so we adjust the value
-        // here before calling it. Find out why its not exact and fix it instead
-        // of hacking around it here.
-        uint32_t adjusted_duration = trigger_duration;
-        adjusted_duration *= 4;
-        adjusted_duration /= 5;
-
-        common_hal_mcu_disable_interrupts();
-        port_pin_set_output_level(self->pin, !self->idle_state);
-        common_hal_mcu_delay_us(adjusted_duration);
-        port_pin_set_output_level(self->pin, self->idle_state);
-        common_hal_mcu_enable_interrupts();
-    }
-
-    // Reconfigure the pin and make sure its set to detect the first edge.
-    last_ms[self->channel] = 0;
-    last_us[self->channel] = 0;
-    self->first_edge = true;
-    pulsein_set_config(self, true);
-}
-
-void common_hal_pulseio_pulsein_clear(pulseio_pulsein_obj_t* self) {
-    common_hal_mcu_disable_interrupts();
-    self->start = 0;
-    self->len = 0;
-    common_hal_mcu_enable_interrupts();
-}
-
-uint16_t common_hal_pulseio_pulsein_popleft(pulseio_pulsein_obj_t* self) {
-    if (self->len == 0) {
-        mp_raise_IndexError("pop from an empty PulseIn");
-    }
-    common_hal_mcu_disable_interrupts();
-    uint16_t value = self->buffer[self->start];
-    self->start = (self->start + 1) % self->maxlen;
-    self->len--;
-    common_hal_mcu_enable_interrupts();
-
-    return value;
-}
-
-uint16_t common_hal_pulseio_pulsein_get_maxlen(pulseio_pulsein_obj_t* self) {
-    return self->maxlen;
-}
-
-uint16_t common_hal_pulseio_pulsein_get_len(pulseio_pulsein_obj_t* self) {
-    return self->len;
-}
-
-uint16_t common_hal_pulseio_pulsein_get_item(pulseio_pulsein_obj_t* self,
-        int16_t index) {
-    common_hal_mcu_disable_interrupts();
-    if (index < 0) {
-        index += self->len;
-    }
-    if (index < 0 || index >= self->len) {
-        common_hal_mcu_enable_interrupts();
-        mp_raise_IndexError("index out of range");
-    }
-    uint16_t value = self->buffer[(self->start + index) % self->maxlen];
-    common_hal_mcu_enable_interrupts();
-    return value;
-}
-
-#endif