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/*
* 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.org/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_ILI9320
#include "gdisp_lld_config.h"
#include "../../../src/gdisp/gdisp_driver.h"
#include "board_ILI9320.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 uint16_t 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 GDISP_ROTATE_0:
case GDISP_ROTATE_180:
write_reg(g, 0x20, g->p.x);
write_reg(g, 0x21, g->p.y);
break;
case GDISP_ROTATE_90:
case GDISP_ROTATE_270:
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 GDISP_ROTATE_0:
case GDISP_ROTATE_180:
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 GDISP_ROTATE_90:
case GDISP_ROTATE_270:
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) {
uint16_t 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);
write_reg(g, 0x00, 0x0001); //start Int. osc
gfxSleepMicroseconds(500);
write_reg(g, 0x01, 0x0100); //Set SS bit (shift direction of outputs is from S720 to S1)
write_reg(g, 0x02, 0x0700); //select the line inversion
write_reg(g, 0x03, 0x1038); //Entry mode(Horizontal : increment,Vertical : increment, AM=1)
write_reg(g, 0x04, 0x0000); //Resize control(No resizing)
write_reg(g, 0x08, 0x0202); //front and back porch 2 lines
write_reg(g, 0x09, 0x0000); //select normal scan
write_reg(g, 0x0A, 0x0000); //display control 4
write_reg(g, 0x0C, 0x0000); //system interface(2 transfer /pixel), internal sys clock,
write_reg(g, 0x0D, 0x0000); //Frame marker position
write_reg(g, 0x0F, 0x0000); //selects clk, enable and sync signal polarity,
write_reg(g, 0x10, 0x0000); //
write_reg(g, 0x11, 0x0000); //power control 2 reference voltages = 1:1,
write_reg(g, 0x12, 0x0000); //power control 3 VRH
write_reg(g, 0x13, 0x0000); //power control 4 VCOM amplitude
gfxSleepMicroseconds(500);
write_reg(g, 0x10, 0x17B0); //power control 1 BT,AP
write_reg(g, 0x11, 0x0137); //power control 2 DC,VC
gfxSleepMicroseconds(500);
write_reg(g, 0x12, 0x0139); //power control 3 VRH
gfxSleepMicroseconds(500);
write_reg(g, 0x13, 0x1d00); //power control 4 vcom amplitude
write_reg(g, 0x29, 0x0011); //power control 7 VCOMH
gfxSleepMicroseconds(500);
write_reg(g, 0x30, 0x0007);
write_reg(g, 0x31, 0x0403);
write_reg(g, 0x32, 0x0404);
write_reg(g, 0x35, 0x0002);
write_reg(g, 0x36, 0x0707);
write_reg(g, 0x37, 0x0606);
write_reg(g, 0x38, 0x0106);
write_reg(g, 0x39, 0x0007);
write_reg(g, 0x3c, 0x0700);
write_reg(g, 0x3d, 0x0707);
write_reg(g, 0x20, 0x0000); //starting Horizontal GRAM Address
write_reg(g, 0x21, 0x0000); //starting Vertical GRAM Address
write_reg(g, 0x50, 0x0000); //Horizontal GRAM Start Position
write_reg(g, 0x51, 0x00EF); //Horizontal GRAM end Position
write_reg(g, 0x52, 0x0000); //Vertical GRAM Start Position
write_reg(g, 0x53, 0x013F); //Vertical GRAM end Position
switch (cver) {
case 0x9320:
write_reg(g, 0x60, 0x2700); //starts scanning from G1, and 320 drive lines
break;
case 0x9325:
write_reg(g, 0x60, 0xA700); //starts scanning from G1, and 320 drive lines
break;
}
write_reg(g, 0x61, 0x0001); //fixed base display
write_reg(g, 0x6a, 0x0000); //no scroll
write_reg(g, 0x90, 0x0010); //set Clocks/Line =16, Internal Operation Clock Frequency=fosc/1,
write_reg(g, 0x92, 0x0000); //set gate output non-overlap period=0
write_reg(g, 0x93, 0x0003); //set Source Output Position=3
write_reg(g, 0x95, 0x0110); //RGB interface(Clocks per line period=16 clocks)
write_reg(g, 0x97, 0x0110); //set Gate Non-overlap Period 0 locksc
write_reg(g, 0x98, 0x0110); //
write_reg(g, 0x07, 0x0173); //display On
// 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 = GDISP_ROTATE_0;
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) {
uint16_t 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 == (orientation_t)g->p.ptr)
return;
switch((orientation_t)g->p.ptr) {
case GDISP_ROTATE_0:
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 GDISP_ROTATE_90:
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 GDISP_ROTATE_180:
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 GDISP_ROTATE_270:
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 = (orientation_t)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 */
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