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Bug fixes to SSD1306. Orientation in all directions is also now supported.

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This commit is contained in:
inmarket 2013-10-22 19:52:54 +10:00
parent 5e9e1a36ab
commit 299cb353af
1 changed files with 59 additions and 20 deletions
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79
drivers/gdisp/SSD1306/gdisp_lld.c
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@ -51,8 +51,11 @@
#define write_cmd3(g, cmd1, cmd2, cmd3) { write_cmd(g, cmd1); write_cmd(g, cmd2); write_cmd(g, cmd3); }
// Some common routines and macros
#define delay(us) gfxSleepMicroseconds(us)
#define delayms(ms) gfxSleepMilliseconds(ms)
#define delay(us) gfxSleepMicroseconds(us)
#define delayms(ms) gfxSleepMilliseconds(ms)
#define xyaddr(x, y) ((x) + ((y)>>3)*GDISP_SCREEN_WIDTH)
#define xybit(y) (1<<((y)&7))
/*===========================================================================*/
/* Driver exported functions. */
@ -135,17 +138,57 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
#if GDISP_HARDWARE_DRAWPIXEL
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
coord_t x, y;
switch(g->g.Orientation) {
case GDISP_ROTATE_0:
x = g->p.x;
y = g->p.y;
break;
case GDISP_ROTATE_90:
x = g->p.y;
y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
break;
case GDISP_ROTATE_180:
x = GDISP_SCREEN_WIDTH-1 - g->p.x;
y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
break;
case GDISP_ROTATE_270:
x = GDISP_SCREEN_HEIGHT-1 - g->p.y;
x = g->p.x;
break;
}
if (g->p.color != Black)
RAM(g)[g->p.x + (g->p.y>>3)*GDISP_SCREEN_WIDTH] |= (1<<(g->p.y&7));
RAM(g)[xyaddr(x, y)] |= xybit(y);
else
RAM(g)[g->p.x + (g->p.y>>3)*GDISP_SCREEN_WIDTH] &= ~(1<<(g->p.y&7));
RAM(g)[xyaddr(x, y)] &= ~xybit(y);
g->flags |= GDISP_FLG_NEEDFLUSH;
}
#endif
#if GDISP_HARDWARE_PIXELREAD
LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) {
return (RAM(g)[g->p.x + (g->p.y>>3)*GDISP_SCREEN_WIDTH] & (1<<(g->p.y&7))) ? White : Black;
coord_t x, y;
switch(g->g.Orientation) {
case GDISP_ROTATE_0:
x = g->p.x;
y = g->p.y;
break;
case GDISP_ROTATE_90:
x = g->p.y;
y = GDISP_SCREEN_HEIGHT-1 - g->p.x;
break;
case GDISP_ROTATE_180:
x = GDISP_SCREEN_WIDTH-1 - g->p.x;
y = GDISP_SCREEN_HEIGHT-1 - g->p.y;
break;
case GDISP_ROTATE_270:
x = GDISP_SCREEN_HEIGHT-1 - g->p.y;
y = g->p.x;
break;
}
return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? White : Black;
}
#endif
@ -167,6 +210,7 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
acquire_bus(g);
write_cmd(g, SSD1306_DISPLAYON);
release_bus(g);
break;
default:
return;
}
@ -177,21 +221,16 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
if (g->g.Orientation == (orientation_t)g->p.ptr)
return;
switch((orientation_t)g->p.ptr) {
/* Rotation is handled by the drawing routines */
case GDISP_ROTATE_0:
acquire_bus(g);
write_cmd(g, SSD1306_COMSCANDEC);
write_cmd(g, SSD1306_SEGREMAP+1);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
release_bus(g);
break;
case GDISP_ROTATE_180:
acquire_bus(g);
write_cmd(g, SSD1306_COMSCANINC);
write_cmd(g, SSD1306_SEGREMAP);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
case GDISP_ROTATE_270:
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
@ -203,14 +242,14 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
if ((unsigned)g->p.ptr > 100)
g->p.ptr = (void *)100;
acquire_bus(g);
write_cmd2(g, SSD1306_SETCONTRAST, (((uint16_t)value)<<8)/101);
write_cmd2(g, SSD1306_SETCONTRAST, (((unsigned)g->p.ptr)<<8)/101);
release_bus(g);
g->g.Contrast = (unsigned)g->p.ptr;
return;
// Our own special controller code to inverse the display
// 0 = normal, 1 = inverse
case GDISP_CONTROL_INVERT:
case GDISP_CONTROL_INVERSE:
acquire_bus(g);
write_cmd(g, g->p.ptr ? SSD1306_INVERTDISPLAY : SSD1306_NORMALDISPLAY);
release_bus(g);