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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_SSD1322
#include "gdisp_lld_config.h"
#include "../../../src/gdisp/gdisp_driver.h"
#include "board_SSD1322.h"
#include <string.h> // for memset
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 64 // This controller should support 64
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 256
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 100
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
#define GDISP_INITIAL_BACKLIGHT 100
#endif
#ifndef SSD1322_USE_DMA
#define SSD1322_USE_DMA GFXOFF
#endif
#define SSD1322_ROW_WIDTH (GDISP_SCREEN_WIDTH/2)
#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0)
#include "SSD1322.h"
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
// Some common routines and macros
#define RAM(g) ((uint8_t *)g->priv)
// Some common routines and macros
#define xyaddr(x, y) ((x) + (y)*SSD1322_ROW_WIDTH)
#define xybits(x, y, c) ((c)<<(((x)&1)<<2))
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* As this controller can't update on a pixel boundary we need to maintain the
* the entire display surface in memory so that we can do the necessary bit
* operations. Fortunately it is a small display in 4 bit grayscale.
* 64 * 128 / 2 = 4096 bytes.
*/
LLDSPEC gBool gdisp_lld_init(GDisplay *g) {
// The private area is the display surface.
g->priv = gfxAlloc(GDISP_SCREEN_HEIGHT * SSD1322_ROW_WIDTH);
// Initialise the board interface
init_board(g);
post_init_board(g);
// Hardware reset
setpin_reset(g, gTrue);
gfxSleepMilliseconds(20);
setpin_reset(g, gFalse);
gfxSleepMilliseconds(200);
write_cmd(g,CMD_SET_COMMAND_LOCK);
write_data(g,0x12); // Unlock OLED driver IC
write_cmd(g,CMD_SET_DISPLAY_OFF);
write_cmd(g,CMD_SET_CLOCK_DIVIDER);
write_data(g,0x91);
write_cmd(g,CMD_SET_MULTIPLEX_RATIO);
write_data(g,0x3F); //duty = 1/64*,64 COMS are enabled
write_cmd(g,CMD_SET_DISPLAY_OFFSET);
write_data(g,0x00);
write_cmd(g,CMD_SET_DISPLAY_START_LINE); //set start line position
write_data(g,0x00);
write_cmd(g,CMD_SET_REMAP);
write_data(g,0x14); //Horizontal address increment,Disable Column Address Re-map,Enable Nibble Re-map,Scan from COM[N-1] to COM0,Disable COM Split Odd Even
write_data(g,0x11); //Enable Dual COM mode
write_cmd(g,0xB5); //GPIO
write_data(g,0x00);
//writeCommand(0x00);
write_cmd(g,CMD_SET_FUNCTION_SELECTION);
write_data(g,0x01);// selection external VDD
write_cmd(g,CMD_DISPLAY_ENHANCEMENT);
write_data(g,0xA0);// enables the external VSL
write_data(g,0xb5);// 0xfd,Enhanced low GS display quality;default is 0xb5(normal),
write_cmd(g,CMD_SET_CONTRAST_CURRENT);
write_data(g,0x7f); // 0xff default is 0x7f
write_cmd(g,CMD_MASTER_CURRENT_CONTROL);
write_data(g,0x0f); //default is 0x0f
write_cmd(g,0xB9); //GRAY TABLE,linear Gray Scale
write_cmd(g,CMD_SET_PHASE_LENGTH);
write_data(g,0xE2); // default is 0x74
write_cmd(g,CMD_DISPLAY_ENHANCEMENT_B);
write_data(g,0xA2); // Reserved;default is 0xa2(normal)
write_data(g,0x20);
write_cmd(g,CMD_SET_PRECHARGE_VOLTAGE);
write_data(g,0x1F); // 0.6xVcc
write_cmd(g,CMD_SET_SECOND_PRECHARGE_PERIOD);
write_data(g,0x08); // default
write_cmd(g,CMD_SET_VCOMH_VOLTAGE );
write_data(g,0x07); // 0.86xVcc;default is 0x04
write_cmd(g,CMD_SET_DISPLAY_MODE_NORMAL);
write_cmd(g,CMD_EXIT_PARTIAL_DISPLAY);
write_cmd(g,CMD_SET_DISPLAY_ON);
// Finish Init
post_init_board(g);
/* Initialise the GDISP structure */
g->g.Width = GDISP_SCREEN_WIDTH;
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Orientation = gOrientation180;
g->g.Powermode = gPowerOn;
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
g->g.Contrast = GDISP_INITIAL_CONTRAST;
return gTrue;
}
#if GDISP_HARDWARE_FLUSH
LLDSPEC void gdisp_lld_flush(GDisplay *g) {
uint8_t * ram;
unsigned cols,rows;
// Don't flush if we don't need it.
if (!(g->flags & GDISP_FLG_NEEDFLUSH))
return;
acquire_bus(g);
write_cmd(g, CMD_SET_COLUMN_ADDR); // range 28 to 91 for 256 pixels to x
write_data(g, 28);
write_data(g, GDISP_SCREEN_WIDTH/4 + 28 - 1);
write_cmd(g, CMD_SET_ROW_ADDR); // range 0 to 63 for 64 pixels
write_data(g, 0);
write_data(g, GDISP_SCREEN_HEIGHT-1);
write_cmd(g, CMD_WRITE_RAM);
ram = RAM(g);
#if SSD1322_USE_DMA
write_data_DMA(g, ram);
#else
for(rows = 0; rows < GDISP_SCREEN_HEIGHT; rows ++) {
for(cols = 0;cols < GDISP_SCREEN_WIDTH/2; cols ++) {
write_data(g, *ram++);
}
}
#endif
release_bus(g);
g->flags &= ~GDISP_FLG_NEEDFLUSH;
}
#endif
#if GDISP_HARDWARE_DRAWPIXEL
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
gCoord x, y;
uint8_t *ram;
switch(g->g.Orientation) {
default:
case gOrientation0:
x = g->p.x;
y = g->p.y;
break;
case gOrientation90:
x = g->p.y;
y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
break;
case gOrientation180:
x = GDISP_SCREEN_WIDTH-1 - g->p.x;
y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
break;
case gOrientation270:
x = GDISP_SCREEN_WIDTH-1 - g->p.y;
y = g->p.x;
break;
}
ram = RAM(g)+xyaddr(x,y);
*ram &= ~xybits(x, y, LLDCOLOR_MASK());
*ram |= xybits(x, y, gdispColor2Native(g->p.color));
g->flags |= GDISP_FLG_NEEDFLUSH;
}
#endif
#if GDISP_HARDWARE_PIXELREAD
LLDSPEC gColor gdisp_lld_get_pixel_color(GDisplay *g) {
gCoord x, y;
LLDCOLOR_TYPE c;
switch(g->g.Orientation) {
default:
case gOrientation0:
x = g->p.x;
y = g->p.y;
break;
case gOrientation90:
x = g->p.y;
y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
break;
case gOrientation180:
x = GDISP_SCREEN_WIDTH-1 - g->p.x;
y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
break;
case gOrientation270:
x = GDISP_SCREEN_WIDTH-1 - g->p.y;
y = g->p.x;
break;
}
c = (RAM(g)[xyaddr(x, y)]>>((x & 1)<<2)) & LLDCOLOR_MASK();
return gdispNative2Color(c);
}
#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:
case gPowerSleep:
case gPowerDeepSleep:
acquire_bus(g);
write_cmd(g, CMD_SET_DISPLAY_MODE_OFF);
release_bus(g);
break;
case gPowerOn:
acquire_bus(g);
write_cmd(g, CMD_SET_DISPLAY_MODE_ON);
release_bus(g);
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) {
/* Rotation is handled by the drawing routines */
case gOrientation0:
case gOrientation180:
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case gOrientation90:
case gOrientation270:
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
g->g.Orientation = (gOrientation)g->p.ptr;
return;
}
}
#endif // GDISP_NEED_CONTROL
#endif // GFX_USE_GDISP
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