284 lines
7.1 KiB
C
284 lines
7.1 KiB
C
/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* https://ugfx.io/license.html
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*
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* Author: pashamray
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* e-mail: pashamray@gmail.com
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* github: https://github.com/pashamray
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*
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* this driver based on code:
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* http://caxapa.ru/thumbs/316734/rdx0154gc.zip
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* http://leoniv.livejournal.com/124005.html
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* Author: leoniv
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* Web site: http://leoniv.livejournal.com
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*
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*/
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#include "gfx.h"
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#if GFX_USE_GDISP
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#define GDISP_DRIVER_VMT GDISPVMT_UC1601s
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#include "gdisp_lld_config.h"
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#include "../../../src/gdisp/gdisp_driver.h"
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#include "board_UC1601s.h"
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#include <string.h> // for memset
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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#ifndef GDISP_SCREEN_HEIGHT
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#define GDISP_SCREEN_HEIGHT 64
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#endif
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#ifndef GDISP_SCREEN_WIDTH
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#define GDISP_SCREEN_WIDTH 132
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#endif
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#ifndef GDISP_INITIAL_CONTRAST
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#define GDISP_INITIAL_CONTRAST 47
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#endif
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#ifndef GDISP_INITIAL_BACKLIGHT
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#define GDISP_INITIAL_BACKLIGHT 100
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#endif
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#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER << 0)
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#include "UC1601s.h"
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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// Some common routines and macros
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#define RAM(g) ((uint8_t *)g->priv)
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#define xyaddr(x, y) ((x) + ((y) >> 3) * GDISP_SCREEN_WIDTH)
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#define xybit(y) (1 << ((y) & 7))
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/**
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* As this controller can't update on a pixel boundary we need to maintain the
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* the entire display surface in memory so that we can do the necessary bit
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* operations. Fortunately it is a small display in monochrome.
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* 64 * 132 / 8 = 1056 bytes.
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*/
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#define GDISP_SCREEN_BYTES ((GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT) / 8)
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#define GDISP_SCREEN_PAGE_SIZE 8
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#define GDISP_SCREEN_PAGES GDISP_SCREEN_HEIGHT / GDISP_SCREEN_PAGE_SIZE
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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LLDSPEC gBool gdisp_lld_init(GDisplay *g) {
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// The private area is the display surface.
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if (!(g->priv = gfxAlloc(GDISP_SCREEN_BYTES)))
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{
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gfxHalt("GDISP UC1601s: Failed to allocate private memory");
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}
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memset(RAM(g), 0, GDISP_SCREEN_BYTES);
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// Initialise the board interface
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init_board(g);
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// Hardware reset
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setpin_reset(g, gTrue);
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gfxSleepMilliseconds(5);
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setpin_reset(g, gFalse);
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acquire_bus(g);
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write_cmd(g, UC1601s_RESET);
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gfxSleepMilliseconds(10);
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write_cmd2(g, UC1601s_SET_BIAS, (uint8_t)(((GDISP_INITIAL_CONTRAST << 8) - 1) / 100));
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write_cmd(g, UC1601s_SET_EN | UC1601s_ENABLE);
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// Finish Init
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post_init_board(g);
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// Release the bus
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release_bus(g);
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/* Initialise the GDISP structure */
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g->g.Width = GDISP_SCREEN_WIDTH;
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g->g.Height = GDISP_SCREEN_HEIGHT;
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g->g.Orientation = gOrientation0;
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g->g.Powermode = gPowerOn;
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g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
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g->g.Contrast = GDISP_INITIAL_CONTRAST;
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return gTrue;
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}
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#if GDISP_HARDWARE_FLUSH
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LLDSPEC void gdisp_lld_flush(GDisplay *g) {
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// Don't flush if we don't need it.
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if (!(g->flags & GDISP_FLG_NEEDFLUSH)) {
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return;
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}
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acquire_bus(g);
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for (int i = 0; i < GDISP_SCREEN_PAGES; ++i)
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{
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write_cmd3(g, UC1601s_SET_PAGE | i, UC1601s_SET_COL_L | (0 & 0x0f), UC1601s_SET_COL_H | ((0 >> 4) & 0x0f)); // Y, XL, XH
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write_data(g, RAM(g) + (i * GDISP_SCREEN_WIDTH), GDISP_SCREEN_WIDTH);
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}
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release_bus(g);
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g->flags &= ~GDISP_FLG_NEEDFLUSH;
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}
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#endif
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#if GDISP_HARDWARE_DRAWPIXEL
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LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
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gCoord x, y;
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#if GDISP_NEED_CONTROL
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switch(g->g.Orientation) {
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default:
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case gOrientation0:
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x = g->p.x;
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y = g->p.y;
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break;
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case gOrientation90:
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x = g->p.y;
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y = g->g.Width - g->p.x - 1;
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break;
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case gOrientation180:
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x = g->g.Width - g->p.x - 1;
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y = g->g.Height - g->p.y - 1;
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break;
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case gOrientation270:
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x = g->g.Height - g->p.y - 1;
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y = g->p.x;
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break;
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}
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#else
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x = g->p.x;
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y = g->p.y;
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#endif
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if (gdispColor2Native(g->p.color) != GFX_BLACK) {
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RAM(g)[xyaddr(x, y)] |= xybit(y);
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} else {
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RAM(g)[xyaddr(x, y)] &= ~xybit(y);
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}
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g->flags |= GDISP_FLG_NEEDFLUSH;
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}
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#endif
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#if GDISP_HARDWARE_PIXELREAD
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LLDSPEC gColor gdisp_lld_get_pixel_color(GDisplay *g) {
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gCoord x, y;
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switch(g->g.Orientation) {
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default:
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case gOrientation0:
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x = g->p.x;
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y = g->p.y;
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break;
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case gOrientation90:
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x = g->p.y;
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y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
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break;
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case gOrientation180:
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x = GDISP_SCREEN_WIDTH-1 - g->p.x;
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y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
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break;
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case gOrientation270:
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x = GDISP_SCREEN_WIDTH-1 - g->p.y;
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y = g->p.x;
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break;
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}
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return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? GFX_WHITE : GFX_BLACK;
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}
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#endif
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#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
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LLDSPEC void gdisp_lld_control(GDisplay *g) {
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switch(g->p.x) {
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case GDISP_CONTROL_POWER:
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if (g->g.Powermode == (gPowermode)g->p.ptr)
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return;
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switch((gPowermode)g->p.ptr) {
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case gPowerOff:
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case gPowerSleep:
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case gPowerDeepSleep:
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acquire_bus(g);
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write_cmd(g, UC1601s_SET_EN);
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release_bus(g);
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break;
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case gPowerOn:
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acquire_bus(g);
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write_cmd(g, UC1601s_SET_EN | UC1601s_ENABLE);
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release_bus(g);
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break;
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default:
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return;
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}
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g->g.Powermode = (gPowermode)g->p.ptr;
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return;
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case GDISP_CONTROL_ORIENTATION:
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if (g->g.Orientation == (gOrientation)g->p.ptr)
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return;
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switch((gOrientation)g->p.ptr) {
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case gOrientation0:
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case gOrientation180:
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if (g->g.Orientation == gOrientation90 || g->g.Orientation == gOrientation270) {
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gCoord tmp;
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tmp = g->g.Width;
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g->g.Width = g->g.Height;
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g->g.Height = tmp;
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}
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break;
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case gOrientation90:
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case gOrientation270:
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if (g->g.Orientation == gOrientation0 || g->g.Orientation == gOrientation180) {
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gCoord tmp;
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tmp = g->g.Width;
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g->g.Width = g->g.Height;
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g->g.Height = tmp;
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}
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break;
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default:
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return;
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}
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g->g.Orientation = (gOrientation)g->p.ptr;
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return;
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case GDISP_CONTROL_BACKLIGHT:
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if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100;
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set_backlight(g, (unsigned)g->p.ptr);
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g->g.Backlight = (unsigned)g->p.ptr;
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return;
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case GDISP_CONTROL_CONTRAST:
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if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100;
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acquire_bus(g);
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write_cmd2(g, UC1601s_SET_BIAS, (uint8_t)(((((unsigned)g->p.ptr) << 8) - 1) / 100));
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release_bus(g);
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g->g.Contrast = (unsigned)g->p.ptr;
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return;
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}
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}
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#endif
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#if GDISP_HARDWARE_FILLS
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LLDSPEC void gdisp_lld_fill_area(GDisplay *g) {
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g->flags |= GDISP_FLG_NEEDFLUSH;
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}
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#endif
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#endif // GFX_USE_GDISP
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