#ifndef TFT_H
#define TFT_H

#include <zeta.h>
#include <hardware.h>

#define TFT_WIDTH 480
#define TFT_HEIGHT 320

enum tft_command {
	NOP        = 0x00,
	SWRESET    = 0x01,
	RDDID      = 0x04,
	RDNUMPE    = 0x05,
	RDRED      = 0x06,
	RDGREEN    = 0x07,
	RDBLUE     = 0x08,
	RDDPM      = 0x0A,
	RDDMADCTL  = 0x0B,
	RDDCOLMOD  = 0x0C,
	RDDIM      = 0x0D,
	RDDSM      = 0x0E,
	RDDSDR     = 0x0F,
	SPLIN      = 0x10,
	SLPOUT     = 0x11,
	PTLON      = 0x12,
	NORON      = 0x13,
	INVOFF     = 0x20,
	INVON      = 0x21,
	ALLPOFF    = 0x22,
	ALLPON     = 0x23,
	GAMSET     = 0x26,
	DISPOFF    = 0x28,
	DISPON     = 0x29,
	CASET      = 0x2A,
	PASET      = 0x2B,
	RAMWR      = 0x2C,
	RAMRD      = 0x2E,
	PLTAR      = 0x30,
	VSCRDEF    = 0x33,
	TEOFF      = 0x34,
	TEON       = 0x35,
	MADCTL     = 0x36,
	VSCRSADD   = 0x37,
	IDMOFF     = 0x38,
	IDMON      = 0x39,
	COLMOD     = 0x3A,
	CONRAMWR   = 0x3C,
	CONRAMRD   = 0x3E,
	TESL       = 0x44,
	GETSL      = 0x45,
	WRDISBV    = 0x51,
	RDDISBV    = 0x52,
	WRCTRLD    = 0x53,
	RDCTRLD    = 0x54,
	WRCABC     = 0x55,
	RDCABC     = 0x56,
	WRCABCMB   = 0x5E,
	RDCABCMB   = 0x5F,
	RDABVCSDR  = 0x68,
	RDBWLK     = 0x70,
	RDBKX      = 0x71,
	RDBKY      = 0x72,
	RDWX       = 0x73,
	RDWY       = 0x74,
	RDRGLB     = 0x75,
	RDRX       = 0x76,
	RDRY       = 0x77,
	RDGX       = 0x78,
	RDGY       = 0x79,
	RDBALB     = 0x7A,
	RDBX       = 0x7B,
	RDBY       = 0x7C,
	RDAX       = 0x7D,
	RDAY       = 0x7E,

	RDID1      = 0xDA,
	RDID2      = 0xDB,
	RDID3      = 0xDC,
	SETOSC     = 0xB0,
	SETPOWER   = 0xB1,
	SETDISCTRL = 0xB2,
	SETRGB     = 0xB3,
	SETCYC     = 0xB4,
	SETBGP     = 0xB5,
	SETCOM     = 0xB6,
	SETOTP     = 0xB7,
	SETEXTC    = 0xB9,
	SETSTBA    = 0xC0,
	SETDGC     = 0xC1,
	SETID      = 0xC3,
	SETDDB     = 0xC4,
	SETCABC    = 0xC9,
	SETPANEL   = 0xCC,
	SETGAMMA   = 0xE0,
	SETIMAGE   = 0xE9,
	SETMESSI   = 0xEA,
	SETCOLOR   = 0xEB
};

enum pixel_format {
	BIT12 = 0x03,
	BIT16 = 0x05,
	BIT18 = 0x06,
	BIT24 = 0x07
};

static inline void
tft_ram_wr(void)
{
	tft_ctrl = RAMWR;
}

static inline void
tft_pixel(u8 r, u8 g, u8 b)
{
	tft_data = (r << 3) | ((g & 0x38) >> 3);
	tft_data = ((g & 0x07) << 5) | b & 0x1F;
}

void
tft_set_area(u16 x, u16 y, u16 w, u16 h);

void
tft_init(void);

void
clear_screen(void);


#endif // TFT_H