395 lines
9.3 KiB
C
395 lines
9.3 KiB
C
/*
|
|
* 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
|
|
*/
|
|
/* KS0107/0108 Driver
|
|
* Pinout: There are at least two different Pinouts!
|
|
* Version 1:
|
|
* 1 - CS1 High Active
|
|
* 2 - CS2 High Active
|
|
* 3 - GND
|
|
* 4 - 5V
|
|
* 5 - CONTRAST
|
|
* 6 - RS(=DC) High = Data, Low = Command
|
|
* 7 - R/W High = Read, Low = Write
|
|
* 8 - E Data is KS0108_latched at the falling Edge
|
|
* 9..16 - D0..7
|
|
* Version 2:
|
|
* 1 - GND
|
|
* 2 - 5V
|
|
* 3 - Vo (Operating Voltage for LCD)
|
|
* 4 - RS High = Data, Low = Command
|
|
* 5 - R/W High = Read, Low = Write
|
|
* 6 - E Data is KS0108_latched at the falling Edge
|
|
* 7..14 - D0..7
|
|
* 15 - CS1 High Active
|
|
* 16 - CS2 High Active
|
|
* 17 - /RST Low Active
|
|
* 18 - Vout (Output voltage for LCD)
|
|
* 19 - LEDA
|
|
* 20 - LEDK
|
|
*
|
|
*/
|
|
#ifndef _GDISP_LLD_BOARD_H
|
|
#define _GDISP_LLD_BOARD_H
|
|
|
|
// My Settings
|
|
#define GDISP_SCREEN_HEIGHT 64
|
|
#define GDISP_SCREEN_WIDTH 128
|
|
#define KS0108_NEED_READ GFXOFF
|
|
#define KS0108_HAS_RESET GFXOFF
|
|
#define KS0108_NEED_BACKLIGHT GFXOFF
|
|
#define KS0108_NEED_PWMBACKLIGHT GFXOFF
|
|
#define KS0108_NOP_DLY GFXON //doesn't work for me without!
|
|
|
|
#define LINE_D0 PAL_LINE(GPIOB, 0U)
|
|
#define LINE_D1 PAL_LINE(GPIOB, 1U)
|
|
#define LINE_D2 PAL_LINE(GPIOB, 2U)
|
|
#define LINE_D3 PAL_LINE(GPIOB, 3U)
|
|
#define LINE_D4 PAL_LINE(GPIOB, 4U)
|
|
#define LINE_D5 PAL_LINE(GPIOB, 5U)
|
|
#define LINE_D6 PAL_LINE(GPIOB, 6U)
|
|
#define LINE_D7 PAL_LINE(GPIOB, 7U)
|
|
#define LINE_BUSY PAL_LINE(GPIOB, 7U)
|
|
#define LINE_CS1 PAL_LINE(GPIOB, 8U)
|
|
#define LINE_CS2 PAL_LINE(GPIOB, 9U)
|
|
#define LINE_E PAL_LINE(GPIOB, 10U)
|
|
#define LINE_DC PAL_LINE(GPIOB, 11U)
|
|
#if KS0108_NEED_READ
|
|
#define LINE_RW PAL_LINE(GPIOB, 12U)
|
|
#endif
|
|
#if KS0108_NEED_BACKLIGHT
|
|
#define LINE_BL PAL_LINE(GPIOB, 13U)
|
|
#endif
|
|
#if KS0108_HAS_RESET
|
|
#define LINE_RESET PAL_LINE(GPIOB, 13U)
|
|
#endif
|
|
|
|
typedef struct {
|
|
ioline_t CS1; // Chip Select1 PIN
|
|
ioline_t CS2; // Chip Select2 PIN
|
|
ioline_t DC; // Register selector PIN
|
|
ioline_t E; // Enable PIN
|
|
ioline_t BUSY; // Busy PIN (Same as D[7])
|
|
#if KS0108_NEED_READ
|
|
ioline_t RW; // Read/Write PIN
|
|
#endif
|
|
#if KS0108_HAS_RESET
|
|
ioline_t RST; // Reset PIN
|
|
#endif
|
|
#if KS0108_NEED_BACKLIGHT
|
|
ioline_t BL; // Backlight PIN
|
|
#endif
|
|
ioline_t D[8];
|
|
ioline_t CS[CHIPS];
|
|
} lcd_pins_t;
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local variables. */
|
|
/*===========================================================================*/
|
|
static const lcd_pins_t lcdpins = {
|
|
LINE_CS1,
|
|
LINE_CS2,
|
|
LINE_DC,
|
|
LINE_E,
|
|
LINE_BUSY,
|
|
#if KS0108_NEED_READ
|
|
LINE_RW,
|
|
#endif
|
|
#if KS0108_HAS_RESET
|
|
LINE_RST,
|
|
#endif
|
|
#if KS0108_NEED_BACKLIGHT
|
|
LINE_BL,
|
|
#endif
|
|
{
|
|
LINE_D0,
|
|
LINE_D1,
|
|
LINE_D2,
|
|
LINE_D3,
|
|
LINE_D4,
|
|
LINE_D5,
|
|
LINE_D6,
|
|
LINE_D7
|
|
},
|
|
{
|
|
LINE_CS1,
|
|
LINE_CS2
|
|
}
|
|
};
|
|
|
|
static GFXINLINE void init_board(GDisplay* g){
|
|
(void) g;
|
|
g->board = 0;
|
|
int ii;
|
|
|
|
for (ii = 0; ii < CHIPS; ii++){
|
|
palSetLineMode(lcdpins.CS[ii], PAL_MODE_OUTPUT_PUSHPULL);
|
|
palClearLine(lcdpins.CS[ii]);
|
|
}
|
|
palSetLineMode(lcdpins.DC, PAL_MODE_OUTPUT_PUSHPULL);
|
|
palClearLine(lcdpins.DC);
|
|
palSetLineMode(lcdpins.E, PAL_MODE_OUTPUT_PUSHPULL);
|
|
palSetLine(lcdpins.E);
|
|
#if KS0108_NEED_READ
|
|
palSetLineMode(lcdpins.RW, PAL_MODE_OUTPUT_PUSHPULL);
|
|
palClearLine(lcdpins.RW);
|
|
#endif
|
|
#if KS0108_HAS_RESET
|
|
palSetLineMode(lcdpins.RST, PAL_MODE_OUTPUT_PUSHPULL);
|
|
palSetLine(lcdpins.RST);
|
|
#endif
|
|
for(ii = 0; ii < 8; ii++) {
|
|
palSetLineMode(lcdpins.D[ii], PAL_MODE_OUTPUT_PUSHPULL);
|
|
palClearLine(lcdpins.D[ii]);
|
|
}
|
|
#if KS0108_NEED_BACKLIGHT
|
|
#if KS0108_NEED_PWMBACKLIGHT
|
|
palSetLineMode(lcdpins.BL, PAL_MODE_ALTERNATE(1));
|
|
#else
|
|
palSetLineMode(lcdpins.BL, PAL_MODE_OUTPUT_PUSHPULL);
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
static GFXINLINE void post_init_board(GDisplay *g) {
|
|
(void) g;
|
|
}
|
|
|
|
static GFXINLINE void setpin_reset(GDisplay *g, bool_t state) {
|
|
(void) g;
|
|
(void) state;
|
|
|
|
#if KS0108_HAS_RESET //Make Hardware Reset
|
|
if (state)
|
|
palClearLine(lcdpins.RST);
|
|
else
|
|
palSetLine(lcdpins.RST);
|
|
#endif
|
|
}
|
|
|
|
static GFXINLINE void set_backlight(GDisplay *g, uint8_t percent) {
|
|
(void) g;
|
|
(void) percent;
|
|
}
|
|
|
|
static GFXINLINE void acquire_bus(GDisplay *g) {
|
|
(void) g;
|
|
}
|
|
|
|
static GFXINLINE void release_bus(GDisplay *g) {
|
|
(void) g;
|
|
}
|
|
|
|
void KS0108_delay(uint16_t microsec){
|
|
#if KS0108_NOP_DLY
|
|
uint16_t cn;
|
|
for (cn=0;cn< microsec;cn++){
|
|
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
asm("nop");asm("nop");asm("nop");asm("nop");
|
|
|
|
//asm("nop");asm("nop");asm("nop");asm("nop");
|
|
//asm("nop");asm("nop");asm("nop");asm("nop");
|
|
//1us
|
|
}
|
|
#else
|
|
gfxSleepMicroseconds(microsec);
|
|
#endif
|
|
}
|
|
|
|
static GFXINLINE void KS0108_latch(void){
|
|
palClearLine(lcdpins.E);
|
|
KS0108_delay(1);
|
|
palSetLine(lcdpins.E);
|
|
}
|
|
|
|
static GFXINLINE void KS0108_write(uint8_t value){
|
|
int ii;
|
|
|
|
for(ii = 0; ii < 8; ii++){
|
|
if(value & (1 << ii))
|
|
palSetLine(lcdpins.D[ii]);
|
|
else
|
|
palClearLine(lcdpins.D[ii]);
|
|
}
|
|
KS0108_delay(1);
|
|
}
|
|
|
|
static GFXINLINE void KS0108_select(uint8_t chip){
|
|
uint8_t ii;
|
|
KS0108_delay(1);
|
|
for (ii = 0; ii < CHIPS; ii++){
|
|
if (ii == chip)
|
|
palSetLine(lcdpins.CS[ii]);
|
|
}
|
|
KS0108_delay(1);
|
|
}
|
|
|
|
static GFXINLINE void KS0108_unselect(void){
|
|
uint8_t ii;
|
|
|
|
KS0108_delay(1);
|
|
for (ii = 0; ii < CHIPS; ii++){
|
|
palClearLine(lcdpins.CS[ii]);
|
|
}
|
|
}
|
|
|
|
/*
|
|
#if KS0108_NEED_READ //Hardware Read ############## WORKS more or less
|
|
static GFXINLINE uint8_t read_KS0108(void) {
|
|
uint8_t ii, data=0;
|
|
|
|
for(ii = 0; ii < 8; ii++)
|
|
palSetLineMode(lcdpins.D[ii], PAL_MODE_INPUT); //Set pads to input
|
|
palSetLine(lcdpins.RW);
|
|
KS0108_delay(1);
|
|
palClearLine(lcdpins.E);
|
|
KS0108_delay(1);
|
|
palSetLine(lcdpins.E);
|
|
KS0108_delay(1);
|
|
// palClearLine(lcdpins.RW);
|
|
// KS0108_delay(1);
|
|
// palSetLine(lcdpins.RW);
|
|
// KS0108_delay(1);
|
|
for(ii = 0; ii < 8; ii++){
|
|
if (palReadLine(lcdpins.D[ii]) == PAL_HIGH){ //Read output
|
|
data |= (1<<ii);
|
|
}
|
|
}
|
|
// palClearLine(lcdpins.E);
|
|
palClearLine(lcdpins.RW); //Write again
|
|
for(ii = 0; ii < 8; ii++) {
|
|
palSetLineMode(lcdpins.D[ii], PAL_MODE_OUTPUT_PUSHPULL); //Set pads to output
|
|
}
|
|
return data;
|
|
}
|
|
#endif
|
|
*/
|
|
#if KS0108_NEED_READ //Hardware Read ########### needs more testing but my display is broken
|
|
static GFXINLINE uint8_t read_KS0108(void) {
|
|
uint8_t ii, data=0;
|
|
|
|
for(ii = 0; ii < 8; ii++)
|
|
palSetLineMode(lcdpins.D[ii], PAL_MODE_INPUT); //Set pads to input
|
|
palSetLine(lcdpins.RW);
|
|
KS0108_delay(1);
|
|
|
|
palClearLine(lcdpins.DC);
|
|
KS0108_delay(1);
|
|
|
|
|
|
while (palReadLine(lcdpins.BUSY)); //Wait for busy flag
|
|
palSetLine(lcdpins.DC);
|
|
/*
|
|
KS0108_delay(2);
|
|
KS0108_latch();
|
|
KS0108_delay(2);
|
|
//KS0108_latch();
|
|
//KS0108_delay(1);
|
|
*/
|
|
palClearLine(lcdpins.RW);
|
|
KS0108_delay(2);
|
|
palSetLine(lcdpins.RW);
|
|
KS0108_delay(1);
|
|
palClearLine(lcdpins.DC);
|
|
KS0108_delay(1);
|
|
while (palReadLine(lcdpins.BUSY)); //Wait for busy flag
|
|
//KS0108_delay(7);
|
|
palSetLine(lcdpins.DC);
|
|
|
|
//KS0108_delay(1);
|
|
//KS0108_latch();
|
|
//KS0108_delay(3);
|
|
|
|
KS0108_delay(1);
|
|
for(ii = 0; ii < 8; ii++){
|
|
if (palReadLine(lcdpins.D[ii]) == PAL_HIGH) //Read output
|
|
data |= (1<<ii);
|
|
}
|
|
// palClearLine(lcdpins.E);
|
|
palSetLine(lcdpins.DC);
|
|
palClearLine(lcdpins.RW); //Write again
|
|
for(ii = 0; ii < 8; ii++) {
|
|
palSetLineMode(lcdpins.D[ii], PAL_MODE_OUTPUT_PUSHPULL); //Set pads to output
|
|
}
|
|
return data;
|
|
}
|
|
#endif
|
|
|
|
static GFXINLINE void write_data(GDisplay* g, uint16_t data){
|
|
(void)g;
|
|
uint8_t bit, displayData;
|
|
#if !KS0108_NEED_READ
|
|
uint8_t *p;
|
|
#endif
|
|
|
|
palSetLine(lcdpins.DC);
|
|
KS0108_select((uint8_t)(data>>8));
|
|
#if KS0108_NEED_READ
|
|
displayData=read_KS0108();
|
|
#else
|
|
p = RAM(g) + (GDISP_SCREEN_WIDTH*(g->p.y >> 3)) + g->p.x;
|
|
displayData = *p;
|
|
#endif
|
|
bit = 1 << (g->p.y & 7); //Get Page bit
|
|
|
|
if ((uint8_t)data){ //set bit
|
|
KS0108_write(displayData | bit);
|
|
#if !KS0108_NEED_READ
|
|
*p = (displayData | bit);
|
|
#endif
|
|
KS0108_latch();
|
|
} else {
|
|
KS0108_write(displayData & ~bit);
|
|
#if !KS0108_NEED_READ
|
|
*p = (displayData & ~bit);
|
|
#endif
|
|
KS0108_latch();
|
|
}
|
|
KS0108_delay(2); //one is too short!
|
|
KS0108_unselect(); //Important
|
|
}
|
|
|
|
static GFXINLINE void write_cmd(GDisplay* g, uint16_t cmd){
|
|
(void)g;
|
|
palClearLine(lcdpins.DC);
|
|
KS0108_select((uint8_t)(cmd>>8));
|
|
KS0108_write((uint8_t)cmd);
|
|
KS0108_latch();
|
|
KS0108_unselect(); //Important
|
|
}
|
|
|
|
static GFXINLINE void setreadmode(GDisplay *g) {
|
|
(void) g;
|
|
}
|
|
|
|
static GFXINLINE void setwritemode(GDisplay *g) {
|
|
(void) g;
|
|
}
|
|
|
|
static GFXINLINE uint16_t read_data(GDisplay *g) {
|
|
(void) g;
|
|
return 0;
|
|
}
|
|
#endif /* _GDISP_LLD_BOARD_H */
|