+
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#include "stm32f4xx_hal.h" /* for HAL_Delay() */+
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#include "ostc.h"+
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#include "display.h"+
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+
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#define ENABLE_EXTENDED_COMMANDS	0xB9+
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#define SET_POWER									0xB1+
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#define SLEEP_OUT									0x11+
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#define DISPLAY_INVERSION_OFF			0x20+
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#define MEMORY_ACCESS_ONTROL			0x36+
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#define INTERFACE_PIXEL_FORMAT		0x3A+
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#define SET_RGB_INTERFACE_RELATED	0xB3+
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#define SET_DISPLAY_WAVEFORM			0xB4+
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#define SET_PANEL									0xCC+
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#define SET_GAMMA_CURVE_RELATED		0xE0+
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#define DISPLAY_ON								0x29+
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#define DISPLAY_OFF								0x28+
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#define SLEEP_IN									0x10+
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+
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+
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static void Display_Error_Handler(void);+
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+
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void display_power_on__1_of_2__pre_RGB(void)+
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{+
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	/* reset system */ +
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	HAL_GPIO_WritePin(DISPLAY_CSB_GPIO_PORT,DISPLAY_CSB_PIN,GPIO_PIN_SET); // chip select+
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+
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	HAL_GPIO_WritePin(DISPLAY_RESETB_GPIO_PORT,DISPLAY_RESETB_PIN,GPIO_PIN_RESET);+
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	HAL_Delay(10);+
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	HAL_GPIO_WritePin(DISPLAY_RESETB_GPIO_PORT,DISPLAY_RESETB_PIN,GPIO_PIN_SET);+
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	HAL_Delay(10);+
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+
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	/* RGB signals should be now for 2 frames or more (datasheet) */+
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}+
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+
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+
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static void send(uint8_t *pData, uint16_t inputlength)+
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{+
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	HAL_GPIO_WritePin(DISPLAY_CSB_GPIO_PORT,DISPLAY_CSB_PIN,GPIO_PIN_RESET); // chip select+
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+
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	if(HAL_SPI_Transmit(&hspiDisplay,(uint8_t*)pData, inputlength, 10000) != HAL_OK)+
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		Display_Error_Handler();+
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+
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	while (HAL_SPI_GetState(&hspiDisplay) != HAL_SPI_STATE_READY)+
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  {+
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  }+
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	HAL_GPIO_WritePin(DISPLAY_CSB_GPIO_PORT,DISPLAY_CSB_PIN,GPIO_PIN_SET); // chip select+
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}+
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+
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+
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static uint16_t convert8to9to8(uint8_t *pInput, uint8_t *pOutput,uint16_t inputlength)+
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{+
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	uint16_t outputlength;+
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	uint8_t readbit =  0x80;//0b1000000;+
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	uint8_t writebit = 0x40;//0b0100000;+
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	uint16_t i,j,k;+
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+
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	outputlength = ((inputlength+7)/8)*9;+
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+
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	for(i=0;i<outputlength;i++)+
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		pOutput[i] = 0;+
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+
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	k = 0;+
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	for(i=0;i<inputlength;i++)+
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	{+
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		if(i != 0)+
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		{+
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			pOutput[k] |= writebit; // 9. bit+
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			writebit = writebit >> 1;+
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			if(writebit == 0)+
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			{+
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				writebit = 0x80;+
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				k++;+
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			}+
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		}+
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		for(j=0;j<8;j++)+
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		{+
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			if((pInput[i] & readbit) != 0)+
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			{+
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				pOutput[k] |= writebit;+
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			}+
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			readbit = readbit >> 1;+
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			if(readbit == 0)+
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				readbit = 0x80;+
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			writebit = writebit >> 1;+
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			if(writebit == 0)+
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			{+
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				writebit = 0x80;+
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				k++;+
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			}+
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		}+
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	}+
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	return outputlength;+
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}+
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+
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void display_power_on__2_of_2__post_RGB(void)+
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{+
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	uint8_t aTxBuffer[32];+
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	uint8_t bTxBuffer[36];+
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	uint16_t i,length;+
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+
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	for(i=0;i<32;i++)+
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		aTxBuffer[i] = 0;+
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	for(i=0;i<36;i++)+
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		bTxBuffer[i] = 0;+
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+
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	aTxBuffer[0] = ENABLE_EXTENDED_COMMANDS;+
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	aTxBuffer[1] = 0xFF;+
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	aTxBuffer[2] = 0x83;+
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	aTxBuffer[3] = 0x63;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,4);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = SET_POWER;+
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	aTxBuffer[1] = 0x81;+
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	aTxBuffer[2] = 0x24;+
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	aTxBuffer[3] = 0x04;+
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	aTxBuffer[4] = 0x02;+
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	aTxBuffer[5] = 0x02;+
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	aTxBuffer[6] = 0x03;+
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	aTxBuffer[7] = 0x10;+
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	aTxBuffer[8] = 0x10;+
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	aTxBuffer[9] = 0x34;+
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	aTxBuffer[10] = 0x3C;+
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	aTxBuffer[11] = 0x3F;+
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	aTxBuffer[12] = 0x3F;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,13);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = SLEEP_OUT;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,1);+
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	send((uint8_t*)bTxBuffer, length);+
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	HAL_Delay(5+1);+
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+
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	aTxBuffer[0] = DISPLAY_INVERSION_OFF;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,1);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = MEMORY_ACCESS_ONTROL;+
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	aTxBuffer[1] = 0x00;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,2);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = INTERFACE_PIXEL_FORMAT;+
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	aTxBuffer[1] = 0x70;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,2);+
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	send((uint8_t*)bTxBuffer, length);+
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	HAL_Delay(120+20);+
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+
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	aTxBuffer[0] = SET_POWER;+
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	aTxBuffer[1] = 0x78;+
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	aTxBuffer[2] = 0x24;+
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	aTxBuffer[3] = 0x04,+
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	aTxBuffer[4] = 0x02;+
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	aTxBuffer[5] = 0x02;+
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	aTxBuffer[6] = 0x03;+
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	aTxBuffer[7] = 0x10;+
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	aTxBuffer[8] = 0x10;+
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	aTxBuffer[9] = 0x34;+
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	aTxBuffer[10] = 0x3C;+
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	aTxBuffer[11] = 0x3F;+
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	aTxBuffer[12] = 0x3F;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,13);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = SET_RGB_INTERFACE_RELATED;+
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	aTxBuffer[1] = 0x01;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,2);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = SET_DISPLAY_WAVEFORM;+
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	aTxBuffer[1] = 0x00;+
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	aTxBuffer[2] = 0x08;+
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	aTxBuffer[3] = 0x56;+
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	aTxBuffer[4] = 0x07;+
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	aTxBuffer[5] = 0x01;+
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	aTxBuffer[6] = 0x01;+
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	aTxBuffer[7] = 0x4D;+
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	aTxBuffer[8] = 0x01;+
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	aTxBuffer[9] = 0x42;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,10);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = SET_PANEL;+
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	aTxBuffer[1] = 0x0B;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,2);+
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	send((uint8_t*)bTxBuffer, length);+
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+
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	aTxBuffer[0] = SET_GAMMA_CURVE_RELATED;+
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	aTxBuffer[1] = 0x01;+
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	aTxBuffer[2] = 0x48;+
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	aTxBuffer[3] = 0x4D;+
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	aTxBuffer[4] = 0x4E;+
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	aTxBuffer[5] = 0x58;+
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	aTxBuffer[6] = 0xF6;+
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	aTxBuffer[7] = 0x0B;+
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	aTxBuffer[8] = 0x4E;+
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	aTxBuffer[9] = 0x12;+
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	aTxBuffer[10] = 0xD5;+
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	aTxBuffer[11] = 0x15;+
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	aTxBuffer[12] = 0x95;+
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	aTxBuffer[13] = 0x55;+
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	aTxBuffer[14] = 0x8E;+
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	aTxBuffer[15] = 0x11;+
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	aTxBuffer[16] = 0x01;+
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	aTxBuffer[17] = 0x48;+
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	aTxBuffer[18] = 0x4D;+
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	aTxBuffer[19] = 0x55;+
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	aTxBuffer[20] = 0x5F;+
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	aTxBuffer[21] = 0xFD;+
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	aTxBuffer[22] = 0x0A;+
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	aTxBuffer[23] = 0x4E;+
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	aTxBuffer[24] = 0x51;+
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	aTxBuffer[25] = 0xD3;+
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	aTxBuffer[26] = 0x17;+
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	aTxBuffer[27] = 0x95;+
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	aTxBuffer[28] = 0x96;+
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	aTxBuffer[29] = 0x4E;+
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	aTxBuffer[30] = 0x11;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,31);+
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	send((uint8_t*)bTxBuffer, length);+
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	HAL_Delay(5+1);+
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+
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	aTxBuffer[0] = DISPLAY_ON;+
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	length = convert8to9to8((uint8_t*)aTxBuffer,(uint8_t*)bTxBuffer,1);+
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	send((uint8_t*)bTxBuffer, length);+
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}+
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+
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+
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static void Display_Error_Handler(void)+
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{+
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  while(1)+
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  {+
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  }+
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}+
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