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SSD2119: orientation control

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All angles supported: 0, 90, 180, 270.
This commit is contained in:
Mateusz Tomaszkiewicz 2013-02-28 00:31:46 +01:00
parent bbdd57d9c1
commit e5543face9
2 changed files with 16 additions and 16 deletions
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30
drivers/gdisp/SSD2119/gdisp_lld.c
View file

@ -111,6 +111,7 @@ static void set_viewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
* Lower 9 bits gives 0-511 range in each value, HSA and HEA respectively
* 0 <= HSA <= HEA <= 0x13F
*/
switch(GDISP.Orientation) {
case GDISP_ROTATE_0:
write_reg(SSD2119_REG_V_RAM_POS, (((y + cy - 1) << 8) & 0xFF00 ) | (y & 0x00FF));
@ -128,7 +129,7 @@ static void set_viewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
write_reg(SSD2119_REG_H_RAM_END, (GDISP_SCREEN_WIDTH - x - 1) & 0x01FF);
break;
case GDISP_ROTATE_270:
write_reg(SSD2119_REG_V_RAM_POS, (((y + cy - 1) << 8) & 0xFF00 ) | (x & 0x00FF));
write_reg(SSD2119_REG_V_RAM_POS, (((x + cx - 1) << 8) & 0xFF00 ) | (x & 0x00FF));
write_reg(SSD2119_REG_H_RAM_START, (y & 0x01FF));
write_reg(SSD2119_REG_H_RAM_END, (y + cy - 1) & 0x01FF);
break;
@ -524,7 +525,6 @@ void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
* GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
* that only supports off/on anything other
* than zero is on.
* GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
*
* @param[in] what What to do.
* @param[in] value The value to use (always cast to a void *).
@ -600,9 +600,10 @@ void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* TB = 0 */
write_reg(SSD2119_REG_OUTPUT_CTRL, 0x30EF);
/* ID = 11 AM = 0 */
write_reg(0x0011, 0x6070);
write_reg(SSD2119_REG_ENTRY_MODE, 0x6830);
release_bus();
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
@ -610,9 +611,10 @@ void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
case GDISP_ROTATE_90:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 11 AM = 1 */
write_reg(0x0011, 0x6078);
/* TB = 1 */
write_reg(SSD2119_REG_OUTPUT_CTRL, 0x32EF);
/* ID = 10 AM = 1 */
write_reg(SSD2119_REG_ENTRY_MODE, 0x6828);
release_bus();
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
@ -620,9 +622,10 @@ void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
case GDISP_ROTATE_180:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 01 AM = 0 */
write_reg(0x0011, 0x6040);
/* TB = 0 */
write_reg(SSD2119_REG_OUTPUT_CTRL, 0x30EF);
/* ID = 00 AM = 0 */
write_reg(SSD2119_REG_ENTRY_MODE, 0x6800);
release_bus();
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
@ -630,9 +633,10 @@ void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
case GDISP_ROTATE_270:
acquire_bus();
write_reg(0x0001, 0x293F);
/* TB = 1 */
write_reg(SSD2119_REG_OUTPUT_CTRL, 0x32EF);
/* ID = 01 AM = 1 */
write_reg(0x0011, 0x6048);
write_reg(SSD2119_REG_ENTRY_MODE, 0x6818);
release_bus();
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
@ -658,8 +662,6 @@ void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
GDISP.Backlight = (unsigned)value;
return;
case GDISP_CONTROL_CONTRAST:
default:
return;
}

2
drivers/gdisp/SSD2119/ssd2119.h
View file

@ -77,7 +77,5 @@
#define SSD2119_REG_X_RAM_ADDR 0x4E
#define SSD2119_REG_Y_RAM_ADDR 0x4F
/* TODO: SSD2119 commands */
#endif /* _SSD2119_H */
/** @} */