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ugfx/drivers/gdisp/UC1601s/gdisp_lld_UC1601s.c
inmarket eaa704c765 Added UC1601s driver
2017-05-05 09:06:57 +10:00

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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:
*
* https://ugfx.io/license.html
*
* Author: pashamray
* e-mail: pashamray@gmail.com
* github: https://github.com/pashamray
*
* this driver based on code:
* http://caxapa.ru/thumbs/316734/rdx0154gc.zip
* http://leoniv.livejournal.com/124005.html
* Author: leoniv
* Web site: http://leoniv.livejournal.com
*
*/
#include "gfx.h"
#if GFX_USE_GDISP
#define GDISP_DRIVER_VMT GDISPVMT_UC1601s
#include "gdisp_lld_config.h"
#include "../../../src/gdisp/gdisp_driver.h"
#include "board_UC1601s.h"
#include <string.h> // for memset
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 64
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 132
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 47
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
#define GDISP_INITIAL_BACKLIGHT 100
#endif
#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER << 0)
#include "UC1601s.h"
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
// Some common routines and macros
#define RAM(g) ((uint8_t *)g->priv)
#define xyaddr(x, y) ((x) + ((y) >> 3) * GDISP_SCREEN_WIDTH)
#define xybit(y) (1 << ((y) & 7))
/**
* 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 monochrome.
* 64 * 132 / 8 = 1056 bytes.
*/
#define GDISP_SCREEN_BYTES ((GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT) / 8)
#define GDISP_SCREEN_PAGE_SIZE 8
#define GDISP_SCREEN_PAGES GDISP_SCREEN_HEIGHT / GDISP_SCREEN_PAGE_SIZE
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
// The private area is the display surface.
if (!(g->priv = gfxAlloc(GDISP_SCREEN_BYTES)))
{
gfxHalt("GDISP UC1601s: Failed to allocate private memory");
}
memset(RAM(g), 0, GDISP_SCREEN_BYTES);
// Initialise the board interface
init_board(g);
// Hardware reset
setpin_reset(g, TRUE);
gfxSleepMilliseconds(5);
setpin_reset(g, FALSE);
acquire_bus(g);
write_cmd(g, UC1601s_RESET);
gfxSleepMilliseconds(10);
write_cmd2(g, UC1601s_SET_BIAS, (uint8_t)(((GDISP_INITIAL_CONTRAST << 8) - 1) / 100));
write_cmd(g, UC1601s_SET_EN | UC1601s_ENABLE);
// Finish Init
post_init_board(g);
// Release the bus
release_bus(g);
/* 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_FLUSH
LLDSPEC void gdisp_lld_flush(GDisplay *g) {
// Don't flush if we don't need it.
if (!(g->flags & GDISP_FLG_NEEDFLUSH)) {
return;
}
acquire_bus(g);
for (int i = 0; i < GDISP_SCREEN_PAGES; ++i)
{
write_cmd3(g, UC1601s_SET_PAGE | i, UC1601s_SET_COL_L | (0 & 0x0f), UC1601s_SET_COL_H | ((0 >> 4) & 0x0f)); // Y, XL, XH
write_data(g, RAM(g) + (i * GDISP_SCREEN_WIDTH), GDISP_SCREEN_WIDTH);
}
release_bus(g);
g->flags &= ~GDISP_FLG_NEEDFLUSH;
}
#endif
#if GDISP_HARDWARE_DRAWPIXEL
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
coord_t x, y;
#if GDISP_NEED_CONTROL
switch(g->g.Orientation) {
default:
case GDISP_ROTATE_0:
x = g->p.x;
y = g->p.y;
break;
case GDISP_ROTATE_90:
x = g->p.y;
y = g->g.Width - g->p.x - 1;
break;
case GDISP_ROTATE_180:
x = g->g.Width - g->p.x - 1;
y = g->g.Height - g->p.y - 1;
break;
case GDISP_ROTATE_270:
x = g->g.Height - g->p.y - 1;
y = g->p.x;
break;
}
#else
x = g->p.x;
y = g->p.y;
#endif
if (gdispColor2Native(g->p.color) != Black) {
RAM(g)[xyaddr(x, y)] |= xybit(y);
} else {
RAM(g)[xyaddr(x, y)] &= ~xybit(y);
}
g->flags |= GDISP_FLG_NEEDFLUSH;
}
#endif
#if GDISP_HARDWARE_PIXELREAD
LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) {
coord_t x, y;
switch(g->g.Orientation) {
default:
case GDISP_ROTATE_0:
x = g->p.x;
y = g->p.y;
break;
case GDISP_ROTATE_90:
x = g->p.y;
y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
break;
case GDISP_ROTATE_180:
x = GDISP_SCREEN_WIDTH-1 - g->p.x;
y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
break;
case GDISP_ROTATE_270:
x = GDISP_SCREEN_WIDTH-1 - g->p.y;
y = g->p.x;
break;
}
return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? White : Black;
}
#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_cmd(g, UC1601s_SET_EN);
release_bus(g);
break;
case powerOn:
acquire_bus(g);
write_cmd(g, UC1601s_SET_EN | UC1601s_ENABLE);
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:
case GDISP_ROTATE_180:
if (g->g.Orientation == GDISP_ROTATE_90 || g->g.Orientation == GDISP_ROTATE_270) {
coord_t tmp;
tmp = g->g.Width;
g->g.Width = g->g.Height;
g->g.Height = tmp;
}
break;
case GDISP_ROTATE_90:
case GDISP_ROTATE_270:
if (g->g.Orientation == GDISP_ROTATE_0 || g->g.Orientation == GDISP_ROTATE_180) {
coord_t tmp;
tmp = g->g.Width;
g->g.Width = g->g.Height;
g->g.Height = tmp;
}
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:
if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100;
acquire_bus(g);
write_cmd2(g, UC1601s_SET_BIAS, (uint8_t)(((((unsigned)g->p.ptr) << 8) - 1) / 100));
release_bus(g);
g->g.Contrast = (unsigned)g->p.ptr;
return;
}
}
#endif
#if GDISP_HARDWARE_FILLS
LLDSPEC void gdisp_lld_fill_area(GDisplay *g) {
g->flags |= GDISP_FLG_NEEDFLUSH;
}
#endif
#endif // GFX_USE_GDISP
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