/* register defines */
#define R_START_OSC             0x00
#define R_DRV_OUTPUT_CONTROL    0x01
#define R_DRV_WAVEFORM_CONTROL  0x02
#define R_ENTRY_MODE            0x03
#define R_COMPARE_REG1          0x04
#define R_COMPARE_REG2          0x05

#define R_DISP_CONTROL1     0x07
#define R_DISP_CONTROL2     0x08
#define R_DISP_CONTROL3     0x09

#define R_FRAME_CYCLE_CONTROL 0x0b
#define R_EXT_DISP_IF_CONTROL 0x0c

#define R_POWER_CONTROL1    0x10
#define R_POWER_CONTROL2    0x11
#define R_POWER_CONTROL3    0x12
#define R_POWER_CONTROL4    0x13

#define R_RAM_ADDR_SET  0x21
#define R_WRITE_DATA_2_GRAM 0x22

#define R_GAMMA_FINE_ADJ_POS1   0x30
#define R_GAMMA_FINE_ADJ_POS2   0x31
#define R_GAMMA_FINE_ADJ_POS3   0x32
#define R_GAMMA_GRAD_ADJ_POS    0x33

#define R_GAMMA_FINE_ADJ_NEG1   0x34
#define R_GAMMA_FINE_ADJ_NEG2   0x35
#define R_GAMMA_FINE_ADJ_NEG3   0x36
#define R_GAMMA_GRAD_ADJ_NEG    0x37

#define R_GAMMA_AMP_ADJ_RES_POS     0x38
#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39

#define R_GATE_SCAN_POS         0x40
#define R_VERT_SCROLL_CONTROL   0x41
#define R_1ST_SCR_DRV_POS       0x42
#define R_2ND_SCR_DRV_POS       0x43
#define R_HORIZ_RAM_ADDR_POS    0x44
#define R_VERT_RAM_ADDR_POS     0x45

/* Flip Flag */
#define R_ENTRY_MODE_HORZ_NORMAL 0x1030
#define R_ENTRY_MODE_HORZ_FLIPPED 0x1000
#define R_ENTRY_MODE_VIDEO_NORMAL 0x1038
#define R_ENTRY_MODE_VIDEO_FLIPPED 0x1018

/* Reverse Flag */
#define R_DISP_CONTROL_NORMAL 0x0004
#define R_DISP_CONTROL_REV    0x0000

void lcd_write_cmd(int16_t cmd);
void lcd_write_reg(int reg, int value);
void fuze_display_on(void);