/*****************************************************************************
* | File      	:   OLED_0in91.c
* | Author      :   Waveshare team
* | Function    :   0.91inch OLED Module Drive function
* | Info        :
*----------------
* |	This version:   V2.0
* | Date        :   2020-08-17
* | Info        :
* -----------------------------------------------------------------------------
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documnetation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to  whom the Software is
# furished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
******************************************************************************/
#include "OLED_0in91.h"
#include "stdio.h"

/*******************************************************************************
function:
			Hardware reset
*******************************************************************************/
static void OLED_Reset(void)
{
    OLED_RST_1;
    DEV_Delay_ms(100);
    OLED_RST_0;
    DEV_Delay_ms(100);
    OLED_RST_1;
    DEV_Delay_ms(100);
}

/*******************************************************************************
function:
			Write register address and data
*******************************************************************************/
static void OLED_WriteReg(uint8_t Reg)
{
#if USE_IIC
    I2C_Write_Byte(Reg,IIC_CMD);
#endif
}

static void OLED_WriteData(uint8_t Data)
{	
#if USE_IIC
    I2C_Write_Byte(Data,IIC_RAM);
#endif
}

/*******************************************************************************
function:
			Common register initialization
*******************************************************************************/
static void OLED_InitReg(void)
{
    OLED_WriteReg(0xAE);

    OLED_WriteReg(0x40);//---set low column address
    OLED_WriteReg(0xB0);//---set high column address

    OLED_WriteReg(0xC8);//-not offset

    OLED_WriteReg(0x81);
    OLED_WriteReg(0xff);

    OLED_WriteReg(0xa1);

    OLED_WriteReg(0xa6);

    OLED_WriteReg(0xa8);
    OLED_WriteReg(0x1f);

    OLED_WriteReg(0xd3);
    OLED_WriteReg(0x00);

    OLED_WriteReg(0xd5);
    OLED_WriteReg(0xf0);

    OLED_WriteReg(0xd9);
    OLED_WriteReg(0x22);

    OLED_WriteReg(0xda);
    OLED_WriteReg(0x02);

    OLED_WriteReg(0xdb);
    OLED_WriteReg(0x49);

    OLED_WriteReg(0x8d);
    OLED_WriteReg(0x14);
}


/********************************************************************************
function:
			initialization
********************************************************************************/
void OLED_0in91_Init()
{
    //Hardware reset
    OLED_Reset();

    //Set the initialization register
    OLED_InitReg();
    DEV_Delay_ms(200);

    //Turn on the OLED display
    OLED_WriteReg(0xaf);
}


/********************************************************************************
function:
			Clear screen
********************************************************************************/
void OLED_0in91_Clear()
{
    UBYTE Column,Page;
    for(Page = 0; Page < OLED_0in91_HEIGHT/8; Page++) {
        OLED_WriteReg(0xb0 + Page);    //Set page address
        OLED_WriteReg(0x00);           //Set display position - column low address
        OLED_WriteReg(0x10);           //Set display position - column high address
        for(Column = 0; Column < OLED_0in91_WIDTH; Column++)
            OLED_WriteData(0x00);
    }
}

/********************************************************************************
function:	
			Update all memory to OLED
********************************************************************************/
void OLED_0in91_Display(UBYTE *Image)
{		
    UBYTE Column,Page;
    UWORD temp;
    for(Page = 0; Page < OLED_0in91_HEIGHT/8; Page++) {
        OLED_WriteReg(0xb0 + Page);
        OLED_WriteReg(0x00);
        OLED_WriteReg(0x10);
        for(Column = 0; Column < OLED_0in91_WIDTH; Column++) {
            temp = Image[(3-Page) + Column*4];
            OLED_WriteData(temp);
        }
    }   
}