#ifndef PCF8535_H__
#define PCF8535_H__

/*
    PCF8535 lcd controller control codes
*/

#define PCF8535_BUS_ADDRESS     0x78

#define LCD_SIZE_X 133
#define LCD_SIZE_Y 64

// Co, D/~C bits
enum
{
    modeLCD_CMD_TILL_STOP   = 0x00,
    modeLCD_CMD_SINGLE      = 0x80,
    modeLCD_DATA_TILL_STOP  = 0x40,
    modeLCD_DATA_SINGLE     = 0xC0
};

enum
{
    cmdLCD_DEFAULT_PAGE     = 0x01,
// Function and RAM command page
    cmdLCD_COMMAND_PAGE     = 0x08,
        paramLCD_PAGE_FUNCTION_AND_RAM  = 0x07,     //H[2:0] = 111
        paramLCD_PAGE_DISPLAY_SETTINGS  = 0x06,     //H[2:0] = 110
        paramLCD_PAGE_HV_GEN            = 0x05,     //H[2:0] = 101
        paramLCD_PAGE_SPECIAL_FEATURE   = 0x03,     //H[2:0] = 011

    cmdLCD_FUNCTION_SET     = 0x10,
        paramLCD_POWER_DOWN             = (1<<2),   // PD = 0
        paramLCD_ACTIVE                 = (0<<2),   // PD = 1
        paramLCD_HORIZONTAL_ADDRESSING  = (0<<1),   // V = 0
        paramLCD_VERTICAL_ADDRESSING    = (1<<1),   // V = 1

    cmdLCD_RAM_PAGE         = 0x20,
        paramLCD_PAGE0                  = (0<<2),   // XM0 = 0
        paramLCD_PAGE1                  = (1<<2),   // XM0 = 0

    cmdLCD_SET_Y            = 0x40,

    cmdLCD_SET_X            = 0x80,

// Display settings command page
    cmdLCD_DISPLAY_CONTROL  = 0x04,
        paramLCD_BLANK                  = (0<<1)|(0<<0),    // D = 0, E = 0
        paramLCD_NORMAL                 = (1<<1)|(0<<0),    // D = 1, E = 0
        paramLCD_ALL_ON                 = (0<<1)|(1<<0),    // D = 0, E = 1
        paramLCD_INVERSE                = (1<<1)|(1<<0),    // D = 1, E = 1

    cmdLCD_EXT_DISPLAY_CTL  = 0x08,
        paramLCD_XDIRECTION_REVERSE     = (0<<2),   // MX = 0
        paramLCD_XDIRECTION_NORMAL      = (1<<2),   // MX = 1
        paramLCD_YDIRECTION_REVERSE     = (0<<1),   // MY = 0
        paramLCD_YDIRECTION_NORMAL      = (1<<1),   // MY = 1

    cmdLCD_BIAS_SYSTEM      = 0x10,
        paramLCD_BIAS_11                = 0,        // Bias 1/11, MUX 1:100
        paramLCD_BIAS_10                = 1,        // Bias 1/10, MUX 1:80
        paramLCD_BIAS_9                 = 2,        // Bias 1/9,  MUX 1:65
        paramLCD_BIAS_8                 = 3,        // Bias 1/8,  MUX 1:49
        paramLCD_BIAS_7                 = 4,        // Bias 1/7,  MUX 1:34
        paramLCD_BIAS_6                 = 5,        // Bias 1/6,  MUX 1:26
        paramLCD_BIAS_5                 = 6,        // Bias 1/5,  MUX 1:17
        paramLCD_BIAS_4                 = 7,        // Bias 1/4,  MUX 1:9

    cmdLCD_DISPLAY_SIZE     = 0x20,
        paramLCD_SMALL_DISPLAY          = (0<<2),   // IB = 0
        paramLCD_LARGE_DISPLAY          = (1<<2),   // IB = 1

    cmdLCD_MULTILPEX_RATE   = 0x80,
        paramLCD_MUX_17                 = 0,        // MUX 1:17
        paramLCD_MUX_26                 = 1,        // MUX 1:26
        paramLCD_MUX_34                 = 2,        // MUX 1:34
        paramLCD_MUX_49                 = 3,        // MUX 1:49
        paramLCD_MUX_65                 = 4,        // MUX 1:65

// HV-gen command page
    cmdLCD_HV_GEN_CONTROL   = 0x04,
        paramLCD_HV_DISABLED            = (0<<0),   // HVE = 0
        paramLCD_HV_ENABLED             = (1<<0),   // HVE = 1
        paramLCD_VLCD_LOW               = (0<<1),   // PRS = 0
        paramLCD_VLCD_HIGH              = (1<<1),   // PRS = 1

    cmdLCD_HV_GEN_STAGES    = 0x08,
        paramLCD_HV_MUL2                = 0,        // S1 = 0, S0 = 0
        paramLCD_HV_MUL3                = 1,        // S1 = 0, S0 = 1
        paramLCD_HV_MUL4                = 2,        // S1 = 1, S0 = 0
        paramLCD_HV_MUL5                = 3,        // S1 = 1, S0 = 1
    cmdLCD_TEMP_COEFF       = 0x10,
        paramLCD_TC_0                   = 0,        // TC = 0
        paramLCD_TC_044                 = 1,        // TC = -0.44e-3 1/C
        paramLCD_TC_110                 = 2,        // TC = -1.10e-3 1/C
        paramLCD_TC_145                 = 3,        // TC = -1.45e-3 1/C
        paramLCD_TC_191                 = 4,        // TC = -1.91-3 1/C
        paramLCD_TC_215                 = 5,        // TC = -2.15e-3 1/C
        paramLCD_TC_232                 = 6,        // TC = -2.32e-3 1/C
        paramLCD_TC_274                 = 7,        // TC = -2.74e-3 1/C
    cmdLCD_TEMP_MEAS_CTL    = 0x20,
        paramLCD_START_MEASURE          = (1<<0),   // SM = 1
    cmdLCD_VLCD_CONTROL     = 0x80,

// Special feature command page
    cmdLCD_STATE_CONTROL    = 0x04,
        paramLCD_DISPLAY_OFF                = (1<<1),   // DOF = 1
        paramLCD_DIRECT_MODE                = (1<<0),   // DM = 1
    cmdLCD_OSC_SETTING      = 0x08,
        paramLCD_OSC_INTERNAL               = (0<<1),   // EC = 0
        paramLCD_OSC_EXTERNAL               = (1<<1),   // EC = 1
    cmdLCD_COG_TCP          = 0x40,
        paramLCD_BOT_ROW_SWAP_DISABLED      = (0<<3),   // BRS = 0
        paramLCD_BOT_ROW_SWAP_ENABLED       = (1<<3),   // BRS = 0
        paramLCD_TOP_ROW_SWAP_DISABLED      = (0<<4),   // TRS = 0
        paramLCD_TOP_ROW_SWAP_ENABLED       = (1<<4)   // TRS = 0
};

#endif  // PCF8535_H__