ugfx/drivers/gdisp/R61505U/gdisp_lld_R61505U.c

/*
 * This file is subject to the terms of the GFX License. If a copy of
 * the license was not distributed with this file, you can obtain one at:
 *
 *              http://ugfx.io/license.html
 */

#include "gfx.h"

#if GFX_USE_GDISP

/* This controller is only ever used with a 240 x 320 display */
#if defined(GDISP_SCREEN_HEIGHT) || defined(GDISP_SCREEN_HEIGHT)
	#if GFX_COMPILER_WARNING_TYPE == GFX_COMPILER_WARNING_DIRECT
		#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
	#elif GFX_COMPILER_WARNING_TYPE == GFX_COMPILER_WARNING_MACRO
		COMPILER_WARNING("GDISP: This low level driver does not support setting a screen size. It is being ignored.")
	#endif
	#undef GDISP_SCREEN_WIDTH
	#undef GDISP_SCREEN_HEIGHT
#endif

#define GDISP_DRIVER_VMT			GDISPVMT_R61505U
#include "gdisp_lld_config.h"
#include "../../../src/gdisp/gdisp_driver.h"

#include "board_R61505U.h"

/*===========================================================================*/
/* Driver local definitions.                                                 */
/*===========================================================================*/

#ifndef GDISP_SCREEN_HEIGHT
	#define GDISP_SCREEN_HEIGHT		320
#endif
#ifndef GDISP_SCREEN_WIDTH
	#define GDISP_SCREEN_WIDTH		240
#endif
#ifndef GDISP_INITIAL_CONTRAST
	#define GDISP_INITIAL_CONTRAST	50
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
	#define GDISP_INITIAL_BACKLIGHT	100
#endif

/*===========================================================================*/
/* Driver local variables.                                                   */
/*===========================================================================*/

/*===========================================================================*/
/* Driver local functions.                                                   */
/*===========================================================================*/

#define dummy_read(g)				{ volatile gU16 dummy; dummy = read_data(g); (void) dummy; }
#define write_reg(g, reg, data)		{ write_index(g, reg); write_data(g, data); }

static void set_cursor(GDisplay *g) {
	switch(g->g.Orientation) {
		default:
		case gOrientation0:
		case gOrientation180:
			write_reg(g, 0x20, g->p.x);
			write_reg(g, 0x21, g->p.y);
			break;

		case gOrientation90:
		case gOrientation270:
			write_reg(g, 0x20, g->p.y);
			write_reg(g, 0x21, g->p.x);
			break;
	}
	write_index(g, 0x22);
}

static void set_viewport(GDisplay *g) {
	switch(g->g.Orientation) {
		default:
		case gOrientation0:
		case gOrientation180:
			write_reg(g, 0x50, g->p.x);
			write_reg(g, 0x51, g->p.x + g->p.cx - 1);
			write_reg(g, 0x52, g->p.y);
			write_reg(g, 0x53, g->p.y + g->p.cy - 1);
			break;

		case gOrientation90:
		case gOrientation270:
			write_reg(g, 0x50, g->p.y);
			write_reg(g, 0x51, g->p.y + g->p.cy - 1);
			write_reg(g, 0x52, g->p.x);
			write_reg(g, 0x53, g->p.x + g->p.cx - 1);
			break;
	}
}

LLDSPEC gBool gdisp_lld_init(GDisplay *g) {
	gU16 cver;

	// No private area for this controller
	g->priv = 0;

	// Initialise the board interface
	init_board(g);

	/* Hardware reset */
	setpin_reset(g, gTrue);
	gfxSleepMicroseconds(1000);
	setpin_reset(g, gFalse);
	gfxSleepMicroseconds(1000);

	acquire_bus(g);
	write_index(g, 0);				// Get controller version
	setreadmode(g);
	dummy_read(g);
	cver = read_data(g);
	setwritemode(g);

	/* initializing funciton */   
		write_reg(g, 0xe5,0x8000);  /* Set the internal vcore voltage */   
		write_reg(g, 0x00,0x0001);  /* start OSC */   
		write_reg(g, 0x2b,0x0010);  /* Set the frame rate as 80 when the internal resistor is used for oscillator circuit */   
		write_reg(g, 0x01,0x0100);  /* s720  to  s1 ; G1 to G320 */   
		write_reg(g, 0x02,0x0700);  /* set the line inversion */   
		write_reg(g, 0x03,0x1018);  /* 65536 colors */    
		write_reg(g, 0x04,0x0000);   
		write_reg(g, 0x08,0x0202);  /* specify the line number of front and back porch periods respectively */   
		write_reg(g, 0x09,0x0000);   
		write_reg(g, 0x0a,0x0000);   
		write_reg(g, 0x0c,0x0000);  /* select  internal system clock */  
		write_reg(g, 0x0d,0x0000);   
		write_reg(g, 0x0f,0x0000);    
		write_reg(g, 0x50,0x0000);  /* set windows adress */   
		write_reg(g, 0x51,0x00ef);   
		write_reg(g, 0x52,0x0000);   
		write_reg(g, 0x53,0x013f);   
		write_reg(g, 0x60,0x2700);   
		write_reg(g, 0x61,0x0001);   
		write_reg(g, 0x6a,0x0000);   
		write_reg(g, 0x80,0x0000);   
		write_reg(g, 0x81,0x0000);   
		write_reg(g, 0x82,0x0000);   
		write_reg(g, 0x83,0x0000);   
		write_reg(g, 0x84,0x0000);   
		write_reg(g, 0x85,0x0000);   
		write_reg(g, 0x90,0x0010);   
		write_reg(g, 0x92,0x0000);   
		write_reg(g, 0x93,0x0003);   
		write_reg(g, 0x95,0x0110);   
		write_reg(g, 0x97,0x0000);   
		write_reg(g, 0x98,0x0000);    
		/* power setting function */   
		write_reg(g, 0x10,0x0000);   
		write_reg(g, 0x11,0x0000);   
		write_reg(g, 0x12,0x0000);   
		write_reg(g, 0x13,0x0000);   
		gfxSleepMicroseconds(100);   
		write_reg(g, 0x10,0x17b0);   
		write_reg(g, 0x11,0x0004);   
		gfxSleepMicroseconds(50);   
		write_reg(g, 0x12,0x013e);   
		gfxSleepMicroseconds(50);   
		write_reg(g, 0x13,0x1f00);   
		write_reg(g, 0x29,0x000f);   
		gfxSleepMicroseconds(50);   
		write_reg(g, 0x20,0x0000);   
		write_reg(g, 0x21,0x0000);   
		
		/* initializing function */  	
		write_reg(g, 0x30,0x0204);   
		write_reg(g, 0x31,0x0001);   
		write_reg(g, 0x32,0x0000);   
		write_reg(g, 0x35,0x0206);   
		write_reg(g, 0x36,0x0600);   
		write_reg(g, 0x37,0x0500);   
		write_reg(g, 0x38,0x0505);   
		write_reg(g, 0x39,0x0407);   
		write_reg(g, 0x3c,0x0500);   
		write_reg(g, 0x3d,0x0503);   
		
		/* display on */  
		write_reg(g, 0x07,0x0173);

		gfxSleepMicroseconds(50);

    // Finish Init
    post_init_board(g);

  	// Release the bus
 	release_bus(g);

	// Turn on the backlight
	set_backlight(g, GDISP_INITIAL_BACKLIGHT);
	
    /* Initialise the GDISP structure */
    g->g.Width = GDISP_SCREEN_WIDTH;
    g->g.Height = GDISP_SCREEN_HEIGHT;
    g->g.Orientation = gOrientation0;
    g->g.Powermode = gPowerOn;
    g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
    g->g.Contrast = GDISP_INITIAL_CONTRAST;
	return gTrue;
}

#if GDISP_HARDWARE_STREAM_WRITE
	LLDSPEC	void gdisp_lld_write_start(GDisplay *g) {
		acquire_bus(g);
		set_viewport(g);
		#if !GDISP_HARDWARE_STREAM_POS
			set_cursor(g);
		#endif
	}
	LLDSPEC	void gdisp_lld_write_color(GDisplay *g) {
		write_data(g, gdispColor2Native(g->p.color));
	}
	LLDSPEC	void gdisp_lld_write_stop(GDisplay *g) {
		release_bus(g);
	}
	#if GDISP_HARDWARE_STREAM_POS
		LLDSPEC void gdisp_lld_write_pos(GDisplay *g) {
			set_cursor(g);
		}
	#endif
#endif

#if GDISP_HARDWARE_STREAM_READ
	LLDSPEC	void gdisp_lld_read_start(GDisplay *g) {
		acquire_bus(g);
		set_viewport(g);
		set_cursor(g);
		setreadmode(g);
		dummy_read(g);
	}
	LLDSPEC	gColor gdisp_lld_read_color(GDisplay *g) {
		gU16	data;

		data = read_data(g);
		return gdispNative2Color(data);
	}
	LLDSPEC	void gdisp_lld_read_stop(GDisplay *g) {
		setwritemode(g);
		release_bus(g);
	}
#endif

#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
	LLDSPEC void gdisp_lld_control(GDisplay *g) {
		switch(g->p.x) {
		case GDISP_CONTROL_POWER:
			if (g->g.Powermode == (gPowermode)g->p.ptr)
				return;
			switch((gPowermode)g->p.ptr) {
				case gPowerOff:
					acquire_bus(g);
					write_reg(g, 0x07, 0x0000);
					write_reg(g, 0x10, 0x0000);
					write_reg(g, 0x11, 0x0000);
					write_reg(g, 0x12, 0x0000);
					write_reg(g, 0x13, 0x0000);
					release_bus(g);

					set_backlight(g, 0);
					break;

				case gPowerOn:
					//*************Power On sequence ******************//
					acquire_bus(g);
					write_reg(g, 0x10, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
					write_reg(g, 0x11, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
					write_reg(g, 0x12, 0x0000); /* VREG1OUT voltage */
					write_reg(g, 0x13, 0x0000); /* VDV[4:0] for VCOM amplitude */
					gfxSleepMicroseconds(2000);            /* Dis-charge capacitor power voltage */
					write_reg(g, 0x10, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
					write_reg(g, 0x11, 0x0147); /* DC1[2:0], DC0[2:0], VC[2:0] */
					gfxSleepMicroseconds(500);
					write_reg(g, 0x12, 0x013C); /* VREG1OUT voltage */
					gfxSleepMicroseconds(500);
					write_reg(g, 0x13, 0x0E00); /* VDV[4:0] for VCOM amplitude */
					write_reg(g, 0x29, 0x0009); /* VCM[4:0] for VCOMH */
					gfxSleepMicroseconds(500);
					write_reg(g, 0x07, 0x0173); /* 262K color and display ON */
					release_bus(g);

					set_backlight(g, g->g.Backlight);
					break;

				case gPowerSleep:
					acquire_bus(g);
					write_reg(g, 0x07, 0x0000); /* display OFF */
					write_reg(g, 0x10, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
					write_reg(g, 0x11, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
					write_reg(g, 0x12, 0x0000); /* VREG1OUT voltage */
					write_reg(g, 0x13, 0x0000); /* VDV[4:0] for VCOM amplitude */
					gfxSleepMicroseconds(2000); /* Dis-charge capacitor power voltage */
					write_reg(g, 0x10, 0x0002); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
					release_bus(g);

					set_backlight(g, 0);
					break;

				case gPowerDeepSleep:
					acquire_bus(g);
					write_reg(g, 0x07, 0x0000); /* display OFF */
					write_reg(g, 0x10, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
					write_reg(g, 0x11, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
					write_reg(g, 0x12, 0x0000); /* VREG1OUT voltage */
					write_reg(g, 0x13, 0x0000); /* VDV[4:0] for VCOM amplitude */
					gfxSleepMicroseconds(2000); /* Dis-charge capacitor power voltage */
					write_reg(g, 0x10, 0x0004); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
					release_bus(g);

					set_backlight(g, 0);
					break;

				default:
					return;
				}
				g->g.Powermode = (gPowermode)g->p.ptr;
				return;

			case GDISP_CONTROL_ORIENTATION:
				if (g->g.Orientation == (gOrientation)g->p.ptr)
					return;
				switch((gOrientation)g->p.ptr) {
				case gOrientation0:
					acquire_bus(g);
					write_reg(g, 0x01, 0x0100);
					write_reg(g, 0x03, 0x1038);
					write_reg(g, 0x60, 0x2700);
					release_bus(g);

					g->g.Height = GDISP_SCREEN_HEIGHT;
					g->g.Width = GDISP_SCREEN_WIDTH;
					break;

				case gOrientation90:
					acquire_bus(g);
					write_reg(g, 0x01, 0x0000);
					write_reg(g, 0x03, 0x1030);
					write_reg(g, 0x60, 0x2700);
					release_bus(g);

					g->g.Height = GDISP_SCREEN_WIDTH;
					g->g.Width = GDISP_SCREEN_HEIGHT;
					break;

				case gOrientation180:
					acquire_bus(g);
					write_reg(g, 0x01, 0x0000);
					write_reg(g, 0x03, 0x1030);
					write_reg(g, 0x60, 0x2700);
					release_bus(g);

					g->g.Height = GDISP_SCREEN_HEIGHT;
					g->g.Width = GDISP_SCREEN_WIDTH;
					break;

				case gOrientation270:
					acquire_bus(g);
					write_reg(g, 0x01, 0x0100);
					write_reg(g, 0x03, 0x1038);
					write_reg(g, 0x60, 0xA700);
					release_bus(g);

					g->g.Height = GDISP_SCREEN_WIDTH;
					g->g.Width = GDISP_SCREEN_HEIGHT;
					break;
		
				default:
					return;
				}
				g->g.Orientation = (gOrientation)g->p.ptr;
				return;

	        case GDISP_CONTROL_BACKLIGHT:
	            if ((unsigned)g->p.ptr > 100)
	            	g->p.ptr = (void *)100;
	            set_backlight(g, (unsigned)g->p.ptr);
	            g->g.Backlight = (unsigned)g->p.ptr;
	            return;
			default:
				return;
		}
	}
#endif

#endif /* GFX_USE_GDISP */