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feature/ssd1312
Joel Bodenmann 2023-10-31 12:29:00 +01:00
parent c2f2ab63e1
commit cae9c0c320
6 changed files with 166 additions and 150 deletions
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BIN
drivers/gdisp/SSD1312/.gdisp_lld_SSD1312.c.swp
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Binary file not shown.

28
drivers/gdisp/SSD1312/SSD1312.h
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@ -1,28 +0,0 @@
/*
* 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.io/license.html
*/
#ifndef _SSD1322_H
#define _SSD1322_H
#define CMD_DISPLAY_START_LINE 0x40
#define CMD_CONTRAST_CONTROL 0x81
#define CMD_CHARGE_PUMP 0x8D
#define CMD_SEGMENT_REMAP 0xA1
#define CMD_MULTIPLEX_RATIO 0xA8
#define CMD_REFERENCE 0xAD
#define CMD_DISPLAY_OFF 0xAE
#define CMD_DISPLAY_ON 0xAF
#define CMD_COM_OUTPUT_SCAN_DIR 0xC0
#define CMD_DISPLAY_OFFSET 0xD3
#define CMD_CLOCK_DIVIDER 0xD5
#define CMD_PRECHARGE_PERIOD 0xD9
#define CMD_COM_HARDWARE_CFG 0xDA
#define CMD_VCOMH_SELECT_LEVEL 0xDB
#define CMD_LOCK 0xFD
#endif /* _SSD1322_H */

31
drivers/gdisp/SSD1312/board_SSD1312_template.h
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@ -5,8 +5,17 @@
* http://ugfx.io/license.html
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#pragma once
/**
* The command byte to put in front of each page line.
*
* If this is defined, each page line is prefixed with the specified value in the locally
* maintained framebuffer.
*
* This can be omitted and handled inside of write_data() manually instead.
*/
#define SSD1312_PAGE_PREFIX 0x40 // Co = 0, D/C = 1
static GFXINLINE void init_board(GDisplay *g)
{
@ -34,18 +43,16 @@ static GFXINLINE void release_bus(GDisplay *g)
(void) g;
}
static GFXINLINE void write_cmd(GDisplay *g, gU8 cmd)
{
(void) g;
(void) cmd;
}
static GFXINLINE void write_data(GDisplay *g, gU8 data)
static GFXINLINE void write_cmd(GDisplay *g, gU8 *data, gU16 length)
{
(void) g;
(void) data;
(void) length;
}
#endif // _GDISP_LLD_BOARD_H
static GFXINLINE void write_data(GDisplay *g, gU8 *data, gU16 length)
{
(void) g;
(void) data;
(void) length;
}

8
drivers/gdisp/SSD1312/driver.cmake 100644
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@ -0,0 +1,8 @@
list(APPEND ugfx_INCLUDE_DIRS
${CMAKE_CURRENT_LIST_DIR}
)
list(APPEND ugfx_SOURCES
${CMAKE_CURRENT_LIST_DIR}/gdisp_lld_SSD1312.c
)

241
drivers/gdisp/SSD1312/gdisp_lld_SSD1312.c
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@ -23,7 +23,7 @@
#define GDISP_SCREEN_HEIGHT 32 // This controller should also support 64 (untested)
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 128
#define GDISP_SCREEN_WIDTH 128
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 100
@ -41,8 +41,6 @@
#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0)
#include "SSD1312.h"
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
@ -52,6 +50,9 @@
#define xyaddr(x, y) (SSD1312_PAGE_OFFSET + (x) + ((y)>>3)*SSD1312_PAGE_WIDTH)
#define xybit(y) (1<<((y)&7))
#define write_cmd_1(g, a) { gU8 cmd[1]; cmd[0] = a; write_cmd(g, cmd, 1); }
#define write_cmd_2(g, a, b) { gU8 cmd[2]; cmd[0] = a; cmd[1] = b; write_cmd(g, cmd, 2); }
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
@ -59,17 +60,19 @@
/**
* 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.
* operations. Fortunately it is a small monochrome display.
* 64 * 128 / 8 = 1024 bytes.
*/
LLDSPEC gBool gdisp_lld_init(GDisplay *g)
{
// The private area is the display surface.
g->priv = gfxAlloc(GDISP_SCREEN_HEIGHT/8 * SSD1312_PAGE_WIDTH);
if (!g->priv)
return gFalse;
// Fill in the prefix command byte on each page line of the display buffer
// We can do it during initialisation as this byte is never overwritten.
// We can do this during initialisation as we're being careful that this byte is never overwritten.
#ifdef SSD1312_PAGE_PREFIX
for (unsigned i = 0; i < GDISP_SCREEN_HEIGHT/8 * SSD1312_PAGE_WIDTH; i += SSD1312_PAGE_WIDTH)
RAM(g)[i] = SSD1312_PAGE_PREFIX;
@ -84,54 +87,64 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
setpin_reset(g, gFalse);
gfxSleepMilliseconds(200);
// Display off
write_cmd(g, 0xAE);
acquire_bus(g);
// Clock divider
write_cmd2(g, 0xD5, 0x80);
// Configuration
// This might require display module vendor specific changes
{
// Display off
write_cmd_1(g, 0xAE);
// Multiplex ratio
write_cmd2(g, 0xA8, 0x1F);
// Clock divider
write_cmd_2(g, 0xD5, 0x80);
// Display offset
write_cmd2(g, 0xD3, 0x30);
// Multiplex ratio
write_cmd_2(g, 0xA8, 0x1F);
// Display start line
write_cmd(g, 0x40);
// Display offset
write_cmd_2(g, 0xD3, 0x30);
// Charge pump
write_cmd2(g, 0x8D, 0x72); // 0x10 if Vcc externally supplied
// Display start line
write_cmd_1(g, 0x40);
// Segment re-map
write_cmd(g, 0xA1);
// Charge pump
write_cmd_2(g, 0x8D, 0x72); // 0x10 if Vcc externally supplied
// COM output scan direction
write_cmd(g, 0xC0);
// Segment re-map
write_cmd_1(g, 0xA1);
// COM pin hardware configuration
write_cmd2(g, 0xDA, 0x10);
// COM output scan direction
write_cmd_1(g, 0xC0);
// Set internal/external current reference
write_cmd2(g, 0xAD, 0x50);
// COM pin hardware configuration
write_cmd_2(g, 0xDA, 0x10);
// Set contract
// ToDo: Also add to GDISP control interface below
write_cmd2(g, 0x81, 0x17);
// Set internal/external current reference
write_cmd_2(g, 0xAD, 0x50);
// Set pre-charge period
write_cmd2(g, 0xD9, 0xF1);
// Set contract
write_cmd_2(g, 0x81, 0x17);
// Set VCOMH select level
write_cmd2(g, 0xDB, 0x30);
// Set pre-charge period
write_cmd_2(g, 0xD9, 0xF1);
// Set entire display on/off
write_cmd(g, 0xA4);
// Set VCOMH select level
write_cmd_2(g, 0xDB, 0x30);
// Set normal/inverse display
write_cmd(g, 0xA6);
// Set entire display on/off
write_cmd_1(g, 0xA4);
// Display on
write_cmd(g, 0xAF);
// Set normal/inverse display
write_cmd_1(g, 0xA6);
// Page addressing mode
write_cmd_2(g, 0x20, 0x02);
// Display on
write_cmd_1(g, 0xAF);
}
release_bus(g);
// Finish Init
post_init_board(g);
@ -148,11 +161,12 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
}
#if GDISP_HARDWARE_FLUSH
LLDSPEC void gdisp_lld_flush(GDisplay *g) {
LLDSPEC void gdisp_lld_flush(GDisplay *g)
{
gU8 * ram;
unsigned pages;
// Don't flush if we don't need it.
// Only flush if necessary
if (!(g->flags & GDISP_FLG_NEEDFLUSH))
return;
@ -160,8 +174,11 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
pages = GDISP_SCREEN_HEIGHT/8;
acquire_bus(g);
write_cmd(g, CMD_DISPLAY_START_LINE);
write_cmd_1(g, 0x40 | 0);
while (pages--) {
write_cmd_1(g, 0xB0 + (((GDISP_SCREEN_HEIGHT/8)-1)-pages));
write_cmd_1(g, 0x00);
write_cmd_1(g, 0x10);
write_data(g, ram, SSD1312_PAGE_WIDTH);
ram += SSD1312_PAGE_WIDTH;
}
@ -171,8 +188,70 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
}
#endif
#if GDISP_HARDWARE_DRAWPIXEL
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g)
{
gCoord x, y;
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;
}
if (gdispColor2Native(g->p.color) != gdispColor2Native(GFX_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 gColor gdisp_lld_get_pixel_color(GDisplay *g)
{
gCoord x, y;
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;
}
return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? GFX_WHITE : GFX_BLACK;
}
#endif
#if GDISP_HARDWARE_FILLS
LLDSPEC void gdisp_lld_fill_area(GDisplay *g) {
LLDSPEC void gdisp_lld_fill_area(GDisplay *g)
{
gCoord sy, ey;
gCoord sx, ex;
gCoord col;
@ -223,7 +302,8 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
mask &= (0xff >> (7 - (ey&7)));
for (col = sx; col <= ex; col++)
base[col] &= ~mask;
} else {
}
else {
while (zpages--) {
for (col = sx; col <= ex; col++)
base[col] |= mask;
@ -238,66 +318,9 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
}
#endif
#if GDISP_HARDWARE_DRAWPIXEL
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
gCoord x, y;
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;
}
if (gdispColor2Native(g->p.color) != gdispColor2Native(GFX_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 gColor gdisp_lld_get_pixel_color(GDisplay *g) {
gCoord x, y;
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;
}
return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? GFX_WHITE : GFX_BLACK;
}
#endif
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
LLDSPEC void gdisp_lld_control(GDisplay *g) {
LLDSPEC void gdisp_lld_control(GDisplay *g)
{
switch(g->p.x) {
case GDISP_CONTROL_POWER:
if (g->g.Powermode == (gPowermode)g->p.ptr)
@ -307,12 +330,12 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
case gPowerSleep:
case gPowerDeepSleep:
acquire_bus(g);
write_cmd(g, SSD1312_DISPLAYOFF);
write_cmd_1(g, 0xAE);
release_bus(g);
break;
case gPowerOn:
acquire_bus(g);
write_cmd(g, SSD1312_DISPLAYON);
write_cmd_1(g, 0xAF);
release_bus(g);
break;
default:
@ -324,8 +347,9 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
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 */
// Rotation is handled by the drawing routines
case gOrientation0:
case gOrientation180:
g->g.Height = GDISP_SCREEN_HEIGHT;
@ -339,6 +363,7 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
default:
return;
}
g->g.Orientation = (gOrientation)g->p.ptr;
return;
@ -346,7 +371,7 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
if ((unsigned)g->p.ptr > 100)
g->p.ptr = (void *)100;
acquire_bus(g);
write_cmd2(g, SSD1312_SETCONTRAST, (((unsigned)g->p.ptr)<<8)/101);
write_cmd_2(g, 0x81, (((unsigned)g->p.ptr)<<8)/101);
release_bus(g);
g->g.Contrast = (unsigned)g->p.ptr;
return;
@ -355,7 +380,7 @@ LLDSPEC gBool gdisp_lld_init(GDisplay *g)
// 0 = normal, 1 = inverse
case GDISP_CONTROL_INVERSE:
acquire_bus(g);
write_cmd(g, g->p.ptr ? SSD1312_INVERTDISPLAY : SSD1312_NORMALDISPLAY);
write_cmd_1(g, g->p.ptr ? 0xA7: 0xA6);
release_bus(g);
return;
}

8
drivers/gdisp/SSD1312/gdisp_lld_config.h
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@ -22,6 +22,10 @@
#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_MONO
#endif /* GFX_USE_GDISP */
// This controller supports a special gdispControl() to inverse the display.
// Pass a parameter of 1 for inverse and 0 for normal.
#define GDISP_CONTROL_INVERSE (GDISP_CONTROL_LLD+0)
#endif /* _GDISP_LLD_CONFIG_H */
#endif // GFX_USE_GDISP
#endif // _GDISP_LLD_CONFIG_H