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ugfx/drivers/gdisp/ILI9342/gdisp_lld_ILI9342.c

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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
#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_ILI9342
#include "gdisp_lld_config.h"
#include "../../../src/gdisp/gdisp_driver.h"
#include "board_ILI9342.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 240
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 320
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 50
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
#define GDISP_INITIAL_BACKLIGHT 100
#endif
#include "drivers/gdisp/ILI9342/ILI9342.h"
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
// Some common routines and macros
#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_viewport(GDisplay *g) {
write_index(g, 0x2A);
write_data(g, (g->p.x >> 8));
write_data(g, (uint8_t) g->p.x);
write_data(g, (g->p.x + g->p.cx - 1) >> 8);
write_data(g, (uint8_t) (g->p.x + g->p.cx - 1));
write_index(g, 0x2B);
write_data(g, (g->p.y >> 8));
write_data(g, (uint8_t) g->p.y);
write_data(g, (g->p.y + g->p.cy - 1) >> 8);
write_data(g, (uint8_t) (g->p.y + g->p.cy - 1));
}
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
// No private area for this controller
g->priv = 0;
// Initialise the board interface
init_board(g);
// Hardware reset
setpin_reset(g, TRUE);
gfxSleepMilliseconds(20);
setpin_reset(g, FALSE);
gfxSleepMilliseconds(20);
// Get the bus for the following initialisation commands
acquire_bus(g);
// Software reset
write_index(g, 0x01);
gfxSleepMilliseconds(5);
write_index(g, 0x28);
// display off
//---------------------------------------------------------
// magic?
write_index(g, 0xcf);
write_data(g, 0x00);
write_data(g, 0x83);
write_data(g, 0x30);
write_index(g, 0xed);
write_data(g, 0x64);
write_data(g, 0x03);
write_data(g, 0x12);
write_data(g, 0x81);
write_index(g, 0xe8);
write_data(g, 0x85);
write_data(g, 0x01);
write_data(g, 0x79);
write_index(g, 0xcb);
write_data(g, 0x39);
write_data(g, 0x2c);
write_data(g, 0x00);
write_data(g, 0x34);
write_data(g, 0x02);
write_index(g, 0xf7);
write_data(g, 0x20);
write_index(g, 0xea);
write_data(g, 0x00);
write_data(g, 0x00);
//------------power control------------------------------
write_index(g, 0xc0); //power control
write_data(g, 0x26);
write_index(g, 0xc1); //power control
write_data(g, 0x11);
//--------------VCOM
write_index(g, 0xc5); //vcom control
write_data(g, 0x35);//35
write_data(g, 0x3e);//3E
write_index(g, 0xc7); //vcom control
write_data(g, 0xbe); // 0x94
//------------memory access control------------------------
write_index(g, 0x36);
write_data(g, 0x08); // scan direction (aka orientation and mirroring)
write_index(g, 0x3a); // pixel format set
write_data(g, 0x55);//16bit /pixel
//----------------- frame rate------------------------------
write_index(g, 0xb1);
// frame rate
write_data(g, 0x00);
write_data(g, 0x1B); //70
//----------------Gamma---------------------------------
write_index(g, 0xf2); // 3Gamma Function Disable
write_data(g, 0x08);
write_index(g, 0x26);
write_data(g, 0x01); // gamma set 4 gamma curve 01/02/04/08
write_index(g, 0xE0); //positive gamma correction
write_data(g, 0x1f);
write_data(g, 0x1a);
write_data(g, 0x18);
write_data(g, 0x0a);
write_data(g, 0x0f);
write_data(g, 0x06);
write_data(g, 0x45);
write_data(g, 0x87);
write_data(g, 0x32);
write_data(g, 0x0a);
write_data(g, 0x07);
write_data(g, 0x02);
write_data(g, 0x07);
write_data(g, 0x05);
write_data(g, 0x00);
write_index(g, 0xE1); //negamma correction
write_data(g, 0x00);
write_data(g, 0x25);
write_data(g, 0x27);
write_data(g, 0x05);
write_data(g, 0x10);
write_data(g, 0x09);
write_data(g, 0x3a);
write_data(g, 0x78);
write_data(g, 0x4d);
write_data(g, 0x05);
write_data(g, 0x18);
write_data(g, 0x0d);
write_data(g, 0x38);
write_data(g, 0x3a);
write_data(g, 0x1f);
//--------------ddram ---------------------
write_index(g, 0x2a);
// column set
// size = 239
write_data(g, 0x00);
write_data(g, 0x00);
write_data(g, 0x00);
write_data(g, 0xEF);
write_index(g, 0x2b);
// page address set
// size = 319
write_data(g, 0x00);
write_data(g, 0x00);
write_data(g, 0x01);
write_data(g, 0x3F);
// write_index(g, 0x34);
//write_index(g, 0x35);
// tearing effect off
// tearing effect on
// write_index(g, 0xb4); // display inversion
// write_data(g, 0x00);
write_index(g, 0xb7); //entry mode set
write_data(g, 0x07);
//-----------------display---------------------
write_index(g, 0xb6);
// display function control
write_data(g, 0x0a);
write_data(g, 0x82);
write_data(g, 0x27);
write_data(g, 0x00);
write_index(g, 0x11); //sleep out
gfxSleepMilliseconds(100);
write_index(g, 0x29); // display on
gfxSleepMilliseconds(100);
// Finish Init
post_init_board(g);
// Release the bus
release_bus(g);
/* Turn on the back-light */
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 = powerOn;
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
g->g.Contrast = GDISP_INITIAL_CONTRAST;
return TRUE;
}
#if GDISP_HARDWARE_STREAM_WRITE
LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
acquire_bus(g);
set_viewport(g);
write_index(g, 0x2C);
}
LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
write_pixel(g, gdispColor2Native(g->p.color));
}
LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
release_bus(g);
}
#endif
#if GDISP_HARDWARE_STREAM_READ
LLDSPEC void gdisp_lld_read_start(GDisplay *g) {
acquire_bus(g);
set_viewport(g);
write_index(g, 0x2E);
setreadmode(g);
dummy_read(g);
}
LLDSPEC color_t 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 == (powermode_t)g->p.ptr)
return;
switch((powermode_t)g->p.ptr) {
case powerOff:
case powerSleep:
case powerDeepSleep:
acquire_bus(g);
write_reg(g, 0x0010, 0x0001); /* enter sleep mode */
release_bus(g);
break;
case powerOn:
acquire_bus(g);
write_reg(g, 0x0010, 0x0000); /* leave sleep mode */
release_bus(g);
break;
default:
return;
}
g->g.Powermode = (powermode_t)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, 0x36, 0x08);
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, 0x36, 0x68);
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, 0x36, 0xC8);
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, 0x36, 0xA8);
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;
//case GDISP_CONTROL_CONTRAST:
default:
return;
}
}
#endif
#endif /* GFX_USE_GDISP */
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