blinkchain

// This is a bare-bones implementation of the ws2811 API
// to make it easier to test on non-Raspberry Pi hardware

#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

#include "rpi_ws281x/ws2811.h"
#include "port_interface.h"

#define RPI_PWM_CHANNELS 2

ws2811_return_t ws2811_init(ws2811_t *ws2811) {
  int chan;
  for (chan = 0; chan < RPI_PWM_CHANNELS; chan++) {
    ws2811_channel_t *channel = &ws2811->channel[chan];
    channel->leds = calloc(channel->count, sizeof(ws2811_led_t));
    channel->strip_type=WS2811_STRIP_RGB;
  }
  return WS2811_SUCCESS;
}

ws2811_return_t ws2811_render(ws2811_t *ws2811) {
  debug("Called render()");
  uint8_t ch;
  uint16_t offset;
  for(ch = 0; ch < RPI_PWM_CHANNELS; ch++) {
    for(offset = 0; offset < ws2811->channel[ch].count; offset++) {
      debug("  [%hhu][%hu]: 0x%08x", ch, offset, ws2811->channel[ch].leds[offset]);
    }
  }
  return WS2811_SUCCESS;
}

const char * ws2811_get_return_t_str(const ws2811_return_t state) {
  const int index = -state;
  static const char * const ret_state_str[] = { WS2811_RETURN_STATES(WS2811_RETURN_STATES_STRING) };

  if (index < (int)(sizeof(ret_state_str) / sizeof(ret_state_str[0])))
  {
    return ret_state_str[index];
  }

  return "";
}