#include "include.h"
#include "tft.h"

#define CommEnd()       tft_write_end()
#define WriteData(v)    tft_write_data(v)
#define WriteComm(v)    tft_write_cmd(v)

#define GUI_TFT_SCREEN_ID               0x98

#define GUI_SCREEN_OFS_X                0
#define GUI_SCREEN_OFS_Y                5

static void tft_gui_set_window(u16 x0, u16 y0, u16 x1, u16 y1)
{
    x0 += GUI_SCREEN_OFS_X;
    x1 += GUI_SCREEN_OFS_X;
    y0 += GUI_SCREEN_OFS_Y;
    y1 += GUI_SCREEN_OFS_Y;

    WriteComm(0x2A); // TFT_CASET
    WriteData(BYTE1(x0));
    WriteData(BYTE0(x0));
    WriteData(BYTE1(x1));
    WriteData(BYTE0(x1));

    WriteComm(0x2B); // TFT_PASET
    WriteData(BYTE1(y0));
    WriteData(BYTE0(y0));
    WriteData(BYTE1(y1));
    WriteData(BYTE0(y1));

    tft_write_end();
}

static void tft_read_id(uint8_t *buf)
{
    tft_read_id_cmd(0x04);

    /* dummy clock cycle */
    tft_dummy_clock();

    buf[0] = tft_spi_getbyte();
    buf[1] = tft_spi_getbyte();
    buf[2] = tft_spi_getbyte();
    tft_write_end();
}

static void tft_240_JD9853a_init(void)
{
    printf("tft_240_JD9853a_init\n");

    tft_hw_reset();

    delay_ms(50);
    WriteComm(0xDF);
    WriteData(0x98);
    WriteData(0x53);

    WriteComm(0xDE);
    WriteData(0x00);

    WriteComm(0xB2);
    WriteData(0x32);

    WriteComm(0xB7);
    WriteData(0x00);
    WriteData(0x35);
    WriteData(0x00);
    WriteData(0x5D);

    WriteComm(0xBB);
    WriteData(0x6C);
    WriteData(0x2F);
    WriteData(0x55);
    WriteData(0x73);
    WriteData(0x6F);
    WriteData(0xF0);

    WriteComm(0xC0);
    WriteData(0x22);
    WriteData(0xA2);

    WriteComm(0xC1);
    WriteData(0x12); // BACKSCAN=0A

    WriteComm(0xC3);
    WriteData(0x7D);
    WriteData(0x04);
    WriteData(0x04);
    WriteData(0x08);
    WriteData(0xC2);
    WriteData(0x72);
    WriteData(0x22);
    WriteData(0x77);

    WriteComm(0xC4);
    WriteData(0x00);
    WriteData(0x00);
    WriteData(0x99); // LN=296+10=306Line
    WriteData(0x79);
    WriteData(0x1B);
    WriteData(0x0B);
    WriteData(0x16);
    WriteData(0x79);
    WriteData(0x1B);
    WriteData(0x0B);
    WriteData(0x16);
    WriteData(0x82);

    WriteComm(0xC8);
    WriteData(0x3F);
    WriteData(0x29);
    WriteData(0x20);
    WriteData(0x14);
    WriteData(0x1B);
    WriteData(0x1E);
    WriteData(0x1A);
    WriteData(0x1A);
    WriteData(0x19);
    WriteData(0x19);
    WriteData(0x0E);
    WriteData(0x0E);
    WriteData(0x0B);
    WriteData(0x07);
    WriteData(0x03);
    WriteData(0x02);
    WriteData(0x3F);
    WriteData(0x29);
    WriteData(0x20);
    WriteData(0x14);
    WriteData(0x1B);
    WriteData(0x1E);
    WriteData(0x1A);
    WriteData(0x1A);
    WriteData(0x19);
    WriteData(0x19);
    WriteData(0x1E);
    WriteData(0x0E);
    WriteData(0x0B);
    WriteData(0x07);
    WriteData(0x03);
    WriteData(0x02);

    WriteComm(0xD0);
    WriteData(0x04);
    WriteData(0x04);
    WriteData(0x6C);
    WriteData(0x1C);
    WriteData(0x03);

    WriteComm(0xD7);
    WriteData(0x00);
    WriteData(0x30);

    WriteComm(0xE6);
    WriteData(0x10);

    WriteComm(0xDE);
    WriteData(0x01);

    WriteComm(0xBB);
    WriteData(0x04); // TE_SEL
    WriteComm(0xD7);
    WriteData(0x12); // INH_CHKSUM_SEL

    WriteComm(0xB7);
    WriteData(0x03);
    WriteData(0x13);
    WriteData(0xE5);
    WriteData(0x38);
    WriteData(0x38);

    WriteComm(0xC1);
    WriteData(0x14);
    WriteData(0x15);
    WriteData(0xC0);

    WriteComm(0xC2);
    WriteData(0x06);
    WriteData(0x3A);

    WriteComm(0xC4);
    WriteData(0x72);
    WriteData(0x12);

    WriteComm(0xBE);
    WriteData(0x00);

    WriteComm(0xDE);
    WriteData(0x00);

    WriteComm(0x35);
    WriteData(0x00);

    WriteComm(0x36);
    WriteData(0x00);

    WriteComm(0x3A);
    WriteData(0x05);

    WriteComm(0x2A);
    WriteData(0x00);
    WriteData(0x00);
    WriteData(0x00);
    WriteData(0xEF);

    WriteComm(0x2B);
    WriteData(0x00);
    WriteData(0x05);
    WriteData(0x01);
    WriteData(0x2C);

    WriteComm(0x11);
    delay_ms(120);

    WriteComm(0x29);
    delay_ms(10);
}

tft_driver_t tft_driver_240_JD9853a = {
    .id = GUI_TFT_SCREEN_ID,
    .init = tft_240_JD9853a_init,
    .read_id = tft_read_id,
    .set_window = tft_gui_set_window,
};