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More orientation fixes for SSD1289.

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Orientation is now supported purely in RAM addressing direction which means the orientation of the display can be changed without affecting existing information on the display. Drawing then occurs in the new orientation.
This commit is contained in:
inmarket 2013-09-30 13:33:35 +10:00
parent 39c10335a3
commit 3480001a79
1 changed files with 6 additions and 10 deletions
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16
drivers/gdisp/SSD1289/gdisp_lld.c
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@ -76,9 +76,9 @@ static void set_viewport(GDISPDriver* g) {
write_reg(0x004f, (GDISP_SCREEN_HEIGHT-1-g->p.x) & 0x01FF);
break;
case GDISP_ROTATE_180:
write_reg(0x44, (((GDISP_SCREEN_WIDTH-g->p.x-1) & 0x00FF) << 8) | ((GDISP_SCREEN_WIDTH - (g->p.x+g->p.cx)) & 0x00FF));
write_reg(0x44, (((GDISP_SCREEN_WIDTH-1-g->p.x) & 0x00FF) << 8) | ((GDISP_SCREEN_WIDTH - (g->p.x+g->p.cx)) & 0x00FF));
write_reg(0x45, (GDISP_SCREEN_HEIGHT-(g->p.y+g->p.cy)) & 0x01FF);
write_reg(0x46, (GDISP_SCREEN_HEIGHT-g->p.y-1) & 0x01FF);
write_reg(0x46, (GDISP_SCREEN_HEIGHT-1-g->p.y) & 0x01FF);
write_reg(0x004e, (GDISP_SCREEN_WIDTH-1-g->p.x) & 0x00FF);
write_reg(0x004f, (GDISP_SCREEN_HEIGHT-1-g->p.y) & 0x01FF);
break;
@ -278,7 +278,6 @@ LLDSPEC bool_t gdisp_lld_init(GDISPDriver *g) {
switch((orientation_t)g->p.ptr) {
case GDISP_ROTATE_0:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 11 AM = 0 */
write_reg(0x0011, 0x6070);
release_bus();
@ -287,17 +286,15 @@ LLDSPEC bool_t gdisp_lld_init(GDISPDriver *g) {
break;
case GDISP_ROTATE_90:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 01 AM = 1 */
write_reg(0x0011, 0x6048);
write_reg(0x0011, 0x6058);
release_bus();
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 01 AM = 0 */
/* ID = 00 AM = 0 */
write_reg(0x0011, 0x6040);
release_bus();
g->g.Height = GDISP_SCREEN_HEIGHT;
@ -305,9 +302,8 @@ LLDSPEC bool_t gdisp_lld_init(GDISPDriver *g) {
break;
case GDISP_ROTATE_270:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 11 AM = 1 */
write_reg(0x0011, 0x6078);
/* ID = 10 AM = 1 */
write_reg(0x0011, 0x6068);
release_bus();
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;