/****************************** File: ws2812.h *********************************
 * Author      : wizard2001     22.03.2023
 * Version     : V1.0.0
 * Settings    : MounRiver Studio V1.84 MCU CH32V003F4P6 CH32F003_Board  SSOP20
 * Description : Control WS2812 Chain over GPIO
 *               PC.1 - WS2812 Data
 *               PC.2 - LED1 OnBoard
 *               PC.4 - LED2 OnBoard
 * Updates     : 23.03.2023  Extension of the Luminance table to 256 Values
 ******************************************************************************/
#include <stdlib.h>

#ifndef __WS2812_H
#define __WS2812_H
//--------------------------- Includes
#define LED_X             1
#define LED_Y            32
#define Max_LED         LED_X * LED_Y                      // n lines
#define MaxLumiTab      256                                // steps 0~max

typedef struct __attribute__ ((__packed__)){               //  ------
  uint8_t  G;
  uint8_t  R;
  uint8_t  B;
} WS_LED_t;

static const uint8_t dim_tab[] = {
   0,   1,   1,   2,   2,   2,   2,   2,   2,   3,   3,   3,   3,   3,   3,   3,
   3,   3,   3,   3,   3,   3,   3,   4,   4,   4,   4,   4,   4,   4,   4,   4,
   4,   4,   4,   5,   5,   5,   5,   5,   5,   5,   5,   5,   5,   6,   6,   6,
   6,   6,   6,   6,   6,   7,   7,   7,   7,   7,   7,   7,   8,   8,   8,   8,
   8,   8,   9,   9,   9,   9,   9,   9,  10,  10,  10,  10,  10,  11,  11,  11,
  11,  11,  12,  12,  12,  12,  12,  13,  13,  13,  13,  14,  14,  14,  14,  15,
  15,  15,  16,  16,  16,  16,  17,  17,  17,  18,  18,  18,  19,  19,  19,  20,
  20,  20,  21,  21,  22,  22,  22,  23,  23,  24,  24,  25,  25,  25,  26,  26,
  27,  27,  28,  28,  29,  29,  30,  30,  31,  32,  32,  33,  33,  34,  35,  35,
  36,  36,  37,  38,  38,  39,  40,  40,  41,  42,  43,  43,  44,  45,  46,  47,
  48,  48,  49,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,  60,  61,  62,
  63,  64,  65,  66,  68,  69,  70,  71,  73,  74,  75,  76,  78,  79,  81,  82,
  83,  85,  86,  88,  90,  91,  93,  94,  96,  98,  99, 101, 103, 105, 107, 109,
 110, 112, 114, 116, 118, 121, 123, 125, 127, 129, 132, 134, 136, 139, 141, 144,
 146, 149, 151, 154, 157, 159, 162, 165, 168, 171, 174, 177, 180, 183, 186, 190,
 193, 196, 200, 203, 207, 211, 214, 218, 222, 226, 230, 234, 238, 242, 248, 255,
};

//--------------------------- Defines Pins, Ports
#define Dext            GPIO_Pin_3                         // check / debug
#define WS_OUT          GPIO_Pin_1                         // PC.1 Dout for WS2812
#define WS_PORT         GPIOC                              // GPIO Port C
#define WS_GPIO_CLK     RCC_APB2Periph_GPIOC

#define LED1            GPIO_Pin_2                         // PC.2 OnBoard LED1 &
#define LED2            GPIO_Pin_4                         // PC.3 LED2 handwired
#define LED_PORT        GPIOC
#define LED_GPIO_CLK    RCC_APB2Periph_GPIOC

//--------------------------- Macros
#define LED1_on         LED_PORT->BCR  = LED1;             // LED1=LOW  -> on
#define LED1_off        LED_PORT->BSHR = LED1;             // LED1=HIGH -> off
#define LED2_on         LED_PORT->BCR  = LED2;             // LED2=LOW  -> on
#define LED2_off        LED_PORT->BSHR = LED2;             // LED2=HIGH -> off
#define WS_OUT_L         WS_PORT->BCR  = WS_OUT;           // DatPin Low
#define WS_OUT_H         WS_PORT->BSHR = WS_OUT;           // DatPin Hight

//--------------------------- Globale Funktionen
void WS2812_IO_init(void);
void WS_CHAIN_init(void);
void LED_init(void);
void WS2812_wr(uint8_t nLED);
void WS2812_dimm(void);

//--------------------------------------------------------------
#endif // __WS2812_H