#ifndef __TSL_2561__
#define __TSL_2561__

#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include <stdint.h>

void init_tsl2561();

typedef enum
{
  TSL2561_INTEGRATIONTIME_13MS      = 0x00,    // 13.7ms
  TSL2561_INTEGRATIONTIME_101MS     = 0x01,    // 101ms
  TSL2561_INTEGRATIONTIME_402MS     = 0x02     // 402ms
}
tsl2561IntegrationTime_t;

typedef enum
{
  TSL2561_GAIN_1X                   = 0x00,    // No gain
  TSL2561_GAIN_16X                  = 0x10,    // 16x gain
}
tsl2561Gain_t;

#define TSL2561_COMMAND_BIT       (0x80)    // Must be 1
#define TSL2561_CLEAR_BIT         (0x40)    // Clears any pending interrupt (write 1 to clear)
#define TSL2561_WORD_BIT          (0x20)    // 1 = read/write word (rather than byte)
#define TSL2561_BLOCK_BIT         (0x10)    // 1 = using block read/write

#define TSL2561_CONTROL_POWERON   (0x03)
#define TSL2561_CONTROL_POWEROFF  (0x00)

// Auto-gain thresholds
#define TSL2561_AGC_THI_13MS      (4850)    // Max value at Ti 13ms = 5047
#define TSL2561_AGC_TLO_13MS      (100)
#define TSL2561_AGC_THI_101MS     (36000)   // Max value at Ti 101ms = 37177
#define TSL2561_AGC_TLO_101MS     (200)
#define TSL2561_AGC_THI_402MS     (63000)   // Max value at Ti 402ms = 65535
#define TSL2561_AGC_TLO_402MS     (500)

#define TSL2561_DELAY_INTTIME_13MS    (15)
#define TSL2561_DELAY_INTTIME_101MS   (120)
#define TSL2561_DELAY_INTTIME_402MS   (450)

#define TSL2561_CLIPPING_13MS     (4900)
#define TSL2561_CLIPPING_101MS    (37000)
#define TSL2561_CLIPPING_402MS    (65000)

#define TSL2561_LUX_LUXSCALE      (14)      // Scale by 2^14
#define TSL2561_LUX_RATIOSCALE    (9)       // Scale ratio by 2^9
#define TSL2561_LUX_CHSCALE       (10)      // Scale channel values by 2^10
#define TSL2561_LUX_CHSCALE_TINT0 (0x7517)  // 322/11 * 2^TSL2561_LUX_CHSCALE
#define TSL2561_LUX_CHSCALE_TINT1 (0x0FE7)  // 322/81 * 2^TSL2561_LUX_CHSCALE

// T, FN and CL package values
#define TSL2561_LUX_K1T           (0x0040)  // 0.125 * 2^RATIO_SCALE
#define TSL2561_LUX_B1T           (0x01f2)  // 0.0304 * 2^LUX_SCALE
#define TSL2561_LUX_M1T           (0x01be)  // 0.0272 * 2^LUX_SCALE
#define TSL2561_LUX_K2T           (0x0080)  // 0.250 * 2^RATIO_SCALE
#define TSL2561_LUX_B2T           (0x0214)  // 0.0325 * 2^LUX_SCALE
#define TSL2561_LUX_M2T           (0x02d1)  // 0.0440 * 2^LUX_SCALE
#define TSL2561_LUX_K3T           (0x00c0)  // 0.375 * 2^RATIO_SCALE
#define TSL2561_LUX_B3T           (0x023f)  // 0.0351 * 2^LUX_SCALE
#define TSL2561_LUX_M3T           (0x037b)  // 0.0544 * 2^LUX_SCALE
#define TSL2561_LUX_K4T           (0x0100)  // 0.50 * 2^RATIO_SCALE
#define TSL2561_LUX_B4T           (0x0270)  // 0.0381 * 2^LUX_SCALE
#define TSL2561_LUX_M4T           (0x03fe)  // 0.0624 * 2^LUX_SCALE
#define TSL2561_LUX_K5T           (0x0138)  // 0.61 * 2^RATIO_SCALE
#define TSL2561_LUX_B5T           (0x016f)  // 0.0224 * 2^LUX_SCALE
#define TSL2561_LUX_M5T           (0x01fc)  // 0.0310 * 2^LUX_SCALE
#define TSL2561_LUX_K6T           (0x019a)  // 0.80 * 2^RATIO_SCALE
#define TSL2561_LUX_B6T           (0x00d2)  // 0.0128 * 2^LUX_SCALE
#define TSL2561_LUX_M6T           (0x00fb)  // 0.0153 * 2^LUX_SCALE
#define TSL2561_LUX_K7T           (0x029a)  // 1.3 * 2^RATIO_SCALE
#define TSL2561_LUX_B7T           (0x0018)  // 0.00146 * 2^LUX_SCALE
#define TSL2561_LUX_M7T           (0x0012)  // 0.00112 * 2^LUX_SCALE
#define TSL2561_LUX_K8T           (0x029a)  // 1.3 * 2^RATIO_SCALE
#define TSL2561_LUX_B8T           (0x0000)  // 0.000 * 2^LUX_SCALE
#define TSL2561_LUX_M8T           (0x0000)  // 0.000 * 2^LUX_SCALE



#endif