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| author | inmarket <andrewh@inmarket.com.au> | 2013-10-21 17:11:46 +1000 |
|---|---|---|
| committer | inmarket <andrewh@inmarket.com.au> | 2013-10-21 17:11:46 +1000 |
| commit | 1b3297aeaebdfec5bf8c507ed88445585a0952de (patch) | |
| tree | b431c05e0baecfe4dd5a277e4a3438e1cdcd7bce | |
| parent | 0698fd28c03e20704376cf6c97f373ba9c5e8c4b (diff) | |
| download | uGFX-1b3297aeaebdfec5bf8c507ed88445585a0952de.tar.gz uGFX-1b3297aeaebdfec5bf8c507ed88445585a0952de.tar.bz2 uGFX-1b3297aeaebdfec5bf8c507ed88445585a0952de.zip | |
Fix a bug in Contrast handling in the Nokia drivers
| -rw-r--r-- | drivers/gdisp/Nokia6610GE12/gdisp_lld.c | 4 | ||||
| -rw-r--r-- | drivers/gdisp/Nokia6610GE8/gdisp_lld.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gdisp/Nokia6610GE12/gdisp_lld.c b/drivers/gdisp/Nokia6610GE12/gdisp_lld.c index 25f26c69..ef8cd043 100644 --- a/drivers/gdisp/Nokia6610GE12/gdisp_lld.c +++ b/drivers/gdisp/Nokia6610GE12/gdisp_lld.c @@ -115,7 +115,7 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { write_index(g, SLEEPOUT); // Sleep out write_reg(g, COLMOD, 0x03); // Color Interface Pixel Format - 0x03 = 12 bits-per-pixel write_reg(g, MADCTL, 0x00); // Memory access controller - write_reg(g, SETCON, 127*GDISP_INITIAL_CONTRAST/100-64); // Write contrast + write_reg(g, SETCON, 128*GDISP_INITIAL_CONTRAST/101-64); // Write contrast delayms(20); // Finish Init @@ -248,7 +248,7 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { case GDISP_CONTROL_CONTRAST: if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100; acquire_bus(g); - write_reg(g, CONTRAST,(unsigned)127*g->p.ptr/100-64); + write_reg(g, CONTRAST,(unsigned)128*g->p.ptr/101-64); release_bus(g); g->g.Contrast = (unsigned)g->p.ptr; return; diff --git a/drivers/gdisp/Nokia6610GE8/gdisp_lld.c b/drivers/gdisp/Nokia6610GE8/gdisp_lld.c index 1bc7282a..f724ee42 100644 --- a/drivers/gdisp/Nokia6610GE8/gdisp_lld.c +++ b/drivers/gdisp/Nokia6610GE8/gdisp_lld.c @@ -199,7 +199,7 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { // P1: 0x00 = page address normal, column address normal, address scan in column direction // P2: 0x00 = RGB sequence (default value) // P3: 0x02 = 4 bits per colour (Type A) - write_cmd2(g, VOLCTR, 63*GDISP_INITIAL_CONTRAST/100, 0x03); // Voltage control (contrast setting) + write_cmd2(g, VOLCTR, 64*GDISP_INITIAL_CONTRAST/101, 0x03); // Voltage control (contrast setting) // P1 = Contrast (0..63) // P2 = 3 resistance ratio (only value that works) delayms(100); // Allow power supply to stabilise @@ -543,7 +543,7 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { case GDISP_CONTROL_CONTRAST: if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100; acquire_bus(g); - write_cmd2(g, VOLCTR, 63*(unsigned)g->p.ptr/100, 0x03); + write_cmd2(g, VOLCTR, 64*(unsigned)g->p.ptr/101, 0x03); release_bus(g); g->g.Contrast = (unsigned)g->p.ptr; return; |