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ugfx/drivers/gdisp/HX8347D/gdisp_lld_HX8347D.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
#define GDISP_DRIVER_VMT GDISPVMT_HX8347D
#include "gdisp_lld_config.h"
#include "../../../src/gdisp/gdisp_driver.h"
#include "board_HX8347D.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 functions. */
/*===========================================================================*/
#include "HX8347D.h"
#define write_reg(g, reg, data) { write_index(g, reg); write_data(g, data); }
static GFXINLINE void set_viewport(GDisplay* g) {
write_reg(g, HX8347D_REG_SCL, g->p.x);
write_reg(g, HX8347D_REG_SCH, g->p.x >> 8);
write_reg(g, HX8347D_REG_ECL, g->p.x + g->p.cx -1);
write_reg(g, HX8347D_REG_ECH, (g->p.x + g->p.cx -1) >> 8);
write_reg(g, HX8347D_REG_SPL, g->p.y);
write_reg(g, HX8347D_REG_SPH, g->p.y >> 8);
write_reg(g, HX8347D_REG_EPL, g->p.y + g->p.cy -1);
write_reg(g, HX8347D_REG_EPH, (g->p.y + g->p.cy -1) >> 8);
write_index(g, HX8347D_REG_SRAMWC);
}
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
LLDSPEC gBool 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, gTrue);
gfxSleepMilliseconds(1);
setpin_reset(g, gFalse);
gfxSleepMilliseconds(5);
// Get the bus for the following initialisation commands
acquire_bus(g);
/* Start Initial Sequence ----------------------------------------------------*/
write_reg(g, HX8347D_REG_STBAH, 0x00); /* Reset Power Control 1 */
write_reg(g, HX8347D_REG_STBAL, 0x20); /* Power Control 2 */
write_reg(g, HX8347D_REG_PTBAH, 0x0C); /* Power Control 1 */
write_reg(g, HX8347D_REG_PTBAL, 0xC4); /* Power Control 2 */
write_reg(g, HX8347D_REG_OPONN, 0x40); /* Source OPON_N */
write_reg(g, HX8347D_REG_OPONI, 0x38); /* Source OPON_I */
write_reg(g, HX8347D_REG_DC2, 0xA3); /* Display Control 2 */
/* Power On sequence ---------------------------------------------------------*/
write_reg(g, HX8347D_REG_PWC2, 0x1B); /* Power Control 2 */
write_reg(g, HX8347D_REG_PWC1, 0x01); /* Power Control 1 */
write_reg(g, HX8347D_REG_VMH, 0x2F); /* Vcom Control 2 */
write_reg(g, HX8347D_REG_VML, 0x57); /* Vcom Control 3 */
write_reg(g, HX8347D_REG_VMF, 0x8D); /* Vcom Control 1 */
/* Gamma settings -----------------------------------------------------------*/
write_reg(g, HX8347D_REG_VRP0, 0x01); // default setup
write_reg(g, HX8347D_REG_VRP1, 0x0e); //
write_reg(g, HX8347D_REG_VRP2, 0x11); //
write_reg(g, HX8347D_REG_VRP3, 0x1a); //
write_reg(g, HX8347D_REG_VRP4, 0x18); //
write_reg(g, HX8347D_REG_VRP5, 0x24); //
write_reg(g, HX8347D_REG_PRP0, 0x15); //
write_reg(g, HX8347D_REG_PRP1, 0x65); //
write_reg(g, HX8347D_REG_PKP0, 0x0b); //
write_reg(g, HX8347D_REG_PKP1, 0x18); //
write_reg(g, HX8347D_REG_PKP2, 0x19); //
write_reg(g, HX8347D_REG_PKP3, 0x1a); //
write_reg(g, HX8347D_REG_PKP4, 0x18); //
write_reg(g, HX8347D_REG_VRN0, 0x1b); //
write_reg(g, HX8347D_REG_VRN1, 0x27); //
write_reg(g, HX8347D_REG_VRN2, 0x25); //
write_reg(g, HX8347D_REG_VRN3, 0x2e); //
write_reg(g, HX8347D_REG_VRN4, 0x31); //
write_reg(g, HX8347D_REG_VRN5, 0x3e); //
write_reg(g, HX8347D_REG_PRN0, 0x1a); //
write_reg(g, HX8347D_REG_PRN1, 0x6a); //
write_reg(g, HX8347D_REG_PKN0, 0x07); //
write_reg(g, HX8347D_REG_PKN1, 0x05); //
write_reg(g, HX8347D_REG_PKN2, 0x06); //
write_reg(g, HX8347D_REG_PKN3, 0x0b); //
write_reg(g, HX8347D_REG_PKN4, 0x14); //
write_reg(g, HX8347D_REG_CGM, 0xcc); //
/* Power + Osc ---------------------------------------------------------------*/
write_reg(g, HX8347D_REG_OSCCH, 0x36); /* OSC Control 1 */
write_reg(g, HX8347D_REG_OSCCL, 0x01); /* OSC Control 2 */
write_reg(g, HX8347D_REG_DMODE, 0x00); /* Display Mode Control */
write_reg(g, HX8347D_REG_PWC6, 0x88); /* Power Control 6 */
gfxSleepMilliseconds(5); /* Delay 5 ms */
write_reg(g, HX8347D_REG_PWC6, 0x80); /* Power Control 6 */
gfxSleepMilliseconds(5); /* Delay 5 ms */
write_reg(g, HX8347D_REG_PWC6, 0x90); /* Power Control 6 */
gfxSleepMilliseconds(5); /* Delay 5 ms */
write_reg(g, HX8347D_REG_PWC6, 0xD0); /* Power Control 6 */
gfxSleepMilliseconds(5); /* Delay 5 ms */
write_reg(g, HX8347D_REG_COLMOD, 0x05); /* Colmod 16Bit/Pixel */
write_reg(g, HX8347D_REG_PCH, 0x00); /* Panel Characteristic */
write_reg(g, HX8347D_REG_DC3, 0x38); /* Display Control 3 */
gfxSleepMilliseconds(40); /* Delay 40 ms */
write_reg(g, HX8347D_REG_DC3, 0x3C); /* Display Control 3 */
write_reg(g, HX8347D_REG_MAC, 0x08); /* Memory access control */
// 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);
busmode16(g);
}
LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
write_ram16(g, gdispColor2Native(g->p.color));
}
LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
busmode8(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_ORIENTATION:
if (g->g.Orientation == (gOrientation)g->p.ptr)
return;
switch((gOrientation)g->p.ptr) {
case gOrientation0:
acquire_bus(g);
write_reg(g, HX8347D_REG_MAC, 0x08); /* Memory access control */
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case gOrientation90:
acquire_bus(g);
write_reg(g, HX8347D_REG_MAC, 0x68); /* Memory access control */
release_bus(g);
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
case gOrientation180:
acquire_bus(g);
write_reg(g, HX8347D_REG_MAC, 0xc8); /* Memory access control */
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case gOrientation270:
acquire_bus(g);
write_reg(g, HX8347D_REG_MAC, 0xa8); /* Memory access control */
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 */
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