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Fixes for the SSD1289 driver 

Put aquire_bus() and release_bus() in the right place in the control
routine.
Simplify reset_viewport().
A couple of other simple tidyups.
ugfx_release_2.6
Andrew Hannam 2012-12-20 18:33:43 +10:00
parent 9da1afa34a
commit 5bdab7a8a8
1 changed files with 17 additions and 14 deletions
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31
drivers/gdisp/SSD1289/gdisp_lld.c
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@ -95,7 +95,7 @@ static __inline void set_cursor(coord_t x, coord_t y) {
}
}
void set_viewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
static void set_viewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
set_cursor(x, y);
@ -134,17 +134,8 @@ void set_viewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
set_cursor(x, y);
}
void reset_viewport(void) {
switch(GDISP.Orientation) {
case GDISP_ROTATE_0:
case GDISP_ROTATE_180:
set_viewport(0, 0, GDISP_SCREEN_WIDTH, GDISP_SCREEN_HEIGHT);
break;
case GDISP_ROTATE_90:
case GDISP_ROTATE_270:
set_viewport(0, 0, GDISP_SCREEN_HEIGHT, GDISP_SCREEN_WIDTH);
break;
}
static __inline void reset_viewport(void) {
set_viewport(0, 0, GDISP.Width, GDISP.Height);
}
/*===========================================================================*/
@ -499,25 +490,30 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
* @notapi
*/
void GDISP_LLD(control)(unsigned what, void *value) {
acquire_bus();
switch(what) {
case GDISP_CONTROL_POWER:
if (GDISP.Powermode == (gdisp_powermode_t)value)
return;
switch((gdisp_powermode_t)value) {
case powerOff:
acquire_bus();
write_reg(0x0010, 0x0000); // leave sleep mode
write_reg(0x0007, 0x0000); // halt operation
write_reg(0x0000, 0x0000); // turn off oszillator
write_reg(0x0010, 0x0001); // enter sleepmode
release_bus();
break;
case powerOn:
acquire_bus();
write_reg(0x0010, 0x0000); // leave sleep mode
release_bus();
if (GDISP.Powermode != powerSleep)
GDISP_LLD(init)();
break;
case powerSleep:
acquire_bus();
write_reg(0x0010, 0x0001); // enter sleep mode
release_bus();
break;
default:
return;
@ -529,30 +525,38 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
return;
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 11 AM = 0 */
write_reg(0x0011, 0x6070);
release_bus();
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 11 AM = 1 */
write_reg(0x0011, 0x6078);
release_bus();
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 01 AM = 0 */
write_reg(0x0011, 0x6040);
release_bus();
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 01 AM = 1 */
write_reg(0x0011, 0x6048);
release_bus();
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
@ -572,7 +576,6 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
case GDISP_CONTROL_CONTRAST:
*/
}
release_bus();
}
#endif