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Fix color lcd detection (only check ID3 byte). 

Also: some cleanup of the lcd code. Sorry, I felt compelled.
This commit is contained in:
Stefan `Sec` Zehl 2011-12-20 01:21:31 +01:00
parent 5f584adb82
commit b10f12ba1f
1 changed files with 62 additions and 95 deletions
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111
firmware/lcd/display.c
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@ -10,9 +10,8 @@
#include "usb/usbmsc.h" #include "usb/usbmsc.h"
#define DISPLAY_UNKNOWN 0 #define DISPLAY_N1200 0
#define DISPLAY_N1200 1 #define DISPLAY_N1600 1
#define DISPLAY_N1600 2
/**************************************************************************/ /**************************************************************************/
/* Utility routines to manage nokia display */ /* Utility routines to manage nokia display */
@ -128,7 +127,7 @@ uint8_t lcdRead(uint8_t data)
void lcdInit(void) { void lcdInit(void) {
int id1,id2,id3,id4; int id;
sspInit(0, sspClockPolarity_Low, sspClockPhase_RisingEdge); sspInit(0, sspClockPolarity_Low, sspClockPhase_RisingEdge);
@ -144,16 +143,12 @@ void lcdInit(void) {
gpioSetValue(RB_LCD_RST, 1); gpioSetValue(RB_LCD_RST, 1);
delayms(100); delayms(100);
id1=lcdRead(128+64+16+8 +2 ); // it will screw up everything.. better do it before anything else --the_nihilant id=lcdRead(220); // ID3
id2=lcdRead(128+64+16+8 +2+1); // .. but after the code above! --the_nihilant
// id3=lcdRead(128+64+16+8+4 ); // id1 and id2 are enough for most screens
// id4=lcdRead(128+64+16+8+4 +1); // id3 and id4 would only use up PRECIOUS SPACE --the_nihilant
lcd_select(); if(id==14)
displayType=DISPLAY_N1600;
if((id1==69)&&(id2==214))displayType=DISPLAY_N1600; else /* ID3 == 48 */
//if((id1==254)&&(id2==2))displayType=DISPLAY_N1200; displayType=DISPLAY_N1200;
else displayType=DISPLAY_N1200; // unknown displays are treated like N1200s anyway, this saves an if (PRECIOUS SPACE) --the_nihilant
/* Small Nokia 1200 LCD docs: /* Small Nokia 1200 LCD docs:
* clear/ set * clear/ set
@ -168,67 +163,49 @@ void lcdInit(void) {
* 0xd0+x black lines from top? (-0xdf?) * 0xd0+x black lines from top? (-0xdf?)
* *
*/ */
if(displayType<=DISPLAY_N1200){ lcd_select();
// lcdWrite(TYPE_CMD,0xE2);
// delayms(5); if(displayType==DISPLAY_N1200){
uint8_t initseq[] = {0xE2,0xAF, // Display ON uint8_t initseq[]= { 0xE2,0xAF, // Display ON
0xA1, // Mirror-X 0xA1, // Mirror-X
0xA4, 0x2F, 0xB0, 0x10}; 0xA4, 0x2F, 0xB0, 0x10};
int i = 0; int i = 0;
while(i<sizeof(initseq)){ while(i<sizeof(initseq)){
lcdWrite(TYPE_CMD,initseq[i++]); lcdWrite(TYPE_CMD,initseq[i++]);
delayms(5); // this is only needed after the first command (0xE2), but doing like this saves space and it still works --the_nihilant delayms(5); // actually only needed after the first
} }
// lcdWrite(TYPE_CMD,0x00); }else{ /* displayType==DISPLAY_N1600 */
goto end;
}/*else if(displayType==DISPLAY_N1600)*/{
uint8_t initseq_d[] = { uint8_t initseq_d[] = {
0x36, 0x36,
0x29, 0xBA, 0x07, 0x29, 0xBA, 0x07,
0x15,0x25, 0x3f, 0x15, 0x25, 0x3f,
0x11, 0x13, 0X37, 0x11, 0x13, 0x37,
0x00, 0x3A, 0x05, 0x00, 0x3A, 0x05,
0x2A, 0, 98-1, 0x2A, 0, 98-1,
0x2B, 0, 70-1}; 0x2B, 0, 70-1};
uint32_t initseq_c = ~/*0x95a7;*/0x12BA7; // this saves 12 bytes overall --the_nihilant uint32_t initseq_c = ~ 0x12BA7; // command/data bitstring
int i = 0; int i = 0;
//// delayms(10); // useless --the_nihilant
lcdWrite(TYPE_CMD,0x01); //sw reset lcdWrite(TYPE_CMD,0x01); //sw reset
//// delayms(10); // useless delayms(10);
//// lcdWrite(TYPE_CMD,0x11); //sleepout (useless --the_nihilant)
delayms(10); // NOT useless! --the_nihilant
// lcdWrite(TYPE_CMD,0x36); //MADCTL MY MX V LAO RGB X X X
//// lcdWrite(TYPE_DATA,0x00); // useless
//// lcdWrite(TYPE_CMD,0x25); // contrast... useless (set below anyway)
//// lcdWrite(TYPE_DATA,0x3F);
//// delayms(10); // useless --the_nihilant
while(i<sizeof(initseq_d)){ while(i<sizeof(initseq_d)){
lcdWrite(initseq_c&1, initseq_d[i++]); lcdWrite(initseq_c&1, initseq_d[i++]);
initseq_c = initseq_c >> 1; initseq_c = initseq_c >> 1;
} }
} }
end:
lcd_deselect(); lcd_deselect();
} }
void lcdFill(char f){ void lcdFill(char f){
// using memset saves 4 bytes compared with the loop!
memset(lcdBuffer,f,RESX*RESY_B); memset(lcdBuffer,f,RESX*RESY_B);
/* int x; #if 0
int x;
for(x=0;x<RESX*RESY_B;x++) { for(x=0;x<RESX*RESY_B;x++) {
lcdBuffer[x]=f; lcdBuffer[x]=f;
}*/ }
#endif
}; };
/* it's not used... it would have no footprint anyway as it's apparently removed anyway at some point (yes I tried, same size) --the_nihilant
void lcdSafeSetPixel(char x, char y, bool f){
if (x>=0 && x<RESX && y>=0 && y < RESY)
lcdSetPixel(x, y, f);
}*/
void lcdSetPixel(char x, char y, bool f){ void lcdSetPixel(char x, char y, bool f){
if (x<0 || x> RESX || y<0 || y > RESY) if (x<0 || x> RESX || y<0 || y > RESY)
return; return;
@ -251,13 +228,15 @@ bool lcdGetPixel(char x, char y){
} }
static void _helper_pixel16(uint16_t color){ // putting this here saves a few bytes overall --the_nihilant // Color display hepler functions
static void _helper_pixel16(uint16_t color){
lcdWrite(TYPE_DATA,color>>8); lcdWrite(TYPE_DATA,color>>8);
lcdWrite(TYPE_DATA,color&0xFF); lcdWrite(TYPE_DATA,color&0xFF);
} }
static void _helper_hline(uint16_t color){ // same for this --the_nihilant static void _helper_hline(uint16_t color){
for(int cx=0;cx<98;cx++) _helper_pixel16(color); for(int cx=0;cx<98;cx++)
_helper_pixel16(color);
} }
#define THECOLOR_R 0x0 #define THECOLOR_R 0x0
@ -268,7 +247,7 @@ void lcdDisplay(void) {
char byte; char byte;
lcd_select(); lcd_select();
if(displayType<=DISPLAY_N1200){ if(displayType==DISPLAY_N1200){
lcdWrite(TYPE_CMD,0xB0); lcdWrite(TYPE_CMD,0xB0);
lcdWrite(TYPE_CMD,0x10); lcdWrite(TYPE_CMD,0x10);
lcdWrite(TYPE_CMD,0x00); lcdWrite(TYPE_CMD,0x00);
@ -286,8 +265,7 @@ void lcdDisplay(void) {
lcdWrite(TYPE_DATA,byte); lcdWrite(TYPE_DATA,byte);
} }
} }
goto end; } else { /* displayType==DISPLAY_N1600 */
}/*else if(displayType==DISPLAY_N1600)*/{
unsigned char r=THECOLOR_R,g=THECOLOR_G,b=THECOLOR_B; unsigned char r=THECOLOR_R,g=THECOLOR_G,b=THECOLOR_B;
unsigned char br=0xFF, bg=0xFF, bb=0xFF; unsigned char br=0xFF, bg=0xFF, bb=0xFF;
unsigned char frame_r=0x00, frame_g=0x00, frame_b=0x80; unsigned char frame_r=0x00, frame_g=0x00, frame_b=0x80;
@ -326,9 +304,9 @@ void lcdDisplay(void) {
//bottom line of the frame //bottom line of the frame
_helper_hline(framecolor); _helper_hline(framecolor);
} }
end:
lcd_deselect(); lcd_deselect();
} }
void lcdRefresh() __attribute__ ((weak, alias ("lcdDisplay"))); void lcdRefresh() __attribute__ ((weak, alias ("lcdDisplay")));
inline void lcdInvert(void) { inline void lcdInvert(void) {
@ -337,32 +315,23 @@ inline void lcdInvert(void) {
void lcdSetContrast(int c) { void lcdSetContrast(int c) {
lcd_select(); lcd_select();
if(displayType<=DISPLAY_N1200){ if(displayType==DISPLAY_N1200){
c+=0x80; if(c<0x1F)
if(c>0x9F) goto end; lcdWrite(TYPE_CMD,0x80+c);
lcdWrite(TYPE_CMD,c); }else{ /* displayType==DISPLAY_N1600 */
goto end; if(c<0x40) {
}/*else if(displayType==DISPLAY_N1600)*/{
if(c>=0x40) goto end;
lcdWrite(TYPE_CMD,0x25); lcdWrite(TYPE_CMD,0x25);
lcdWrite(TYPE_DATA,4*c); lcdWrite(TYPE_DATA,4*c);
};
} }
end:
lcd_deselect(); lcd_deselect();
}; };
void lcdSetInvert(int c) { void lcdSetInvert(int c) {
/* if it's just to force c to be either 0 or 1, it can be done more efficiently --the_nihilant
if(c>1)
c=1;
if(c<0)
c=1;
*/
c=(c&1)+0xa6; // like this --the_nihilant
lcd_select(); lcd_select();
// if(displayType<=DISPLAY_N1200){ // it doesn't harm N1600 displays, does nothing. The if, on the other hand, uses PRECIOUS SPACE --the_nihilant /* it doesn't harm N1600, save space */
lcdWrite(TYPE_CMD,c); // if(displayType==DISPLAY_N1200)
// } lcdWrite(TYPE_CMD,(c&1)+0xa6);
lcd_deselect(); lcd_deselect();
}; };
@ -374,7 +343,6 @@ void __attribute__((__deprecated__)) lcdToggleFlag(int flag) {
GLOBAL(lcdinvert)=!GLOBAL(lcdinvert); GLOBAL(lcdinvert)=!GLOBAL(lcdinvert);
} }
void lcdShiftH(bool right, bool wrap) { void lcdShiftH(bool right, bool wrap) {
uint8_t tmp; uint8_t tmp;
for (int yb = 0; yb<RESY_B; yb++) { for (int yb = 0; yb<RESY_B; yb++) {
@ -434,7 +402,6 @@ void lcdShiftV(bool up, bool wrap) {
} }
lcdBuffer[x+((RESY_B-1)*RESX)] = ( lcdBuffer[x+((RESY_B-1)*RESX)] >> 1) | ((tmp[x]<<3)&8); lcdBuffer[x+((RESY_B-1)*RESX)] = ( lcdBuffer[x+((RESY_B-1)*RESX)] >> 1) | ((tmp[x]<<3)&8);
} }
} }
} }