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Add oled_invert (#13172)

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Co-authored-by: Drashna Jaelre <drashna@live.com>
This commit is contained in:
Ignaz Kevenaar 2021-06-18 17:08:22 +02:00 • committed by GitHub
parent 172e6a7030
commit 0311c8036d
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 34 additions and 0 deletions
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26
drivers/oled/oled_driver.c
View file

@ -34,6 +34,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define DISPLAY_ALL_ON 0xA5
#define DISPLAY_ALL_ON_RESUME 0xA4
#define NORMAL_DISPLAY 0xA6
#define INVERT_DISPLAY 0xA7
#define DISPLAY_ON 0xAF
#define DISPLAY_OFF 0xAE
#define NOP 0xE3
@ -114,6 +115,7 @@ OLED_BLOCK_TYPE oled_dirty = 0;
bool oled_initialized = false;
bool oled_active = false;
bool oled_scrolling = false;
bool oled_inverted = false;
uint8_t oled_brightness = OLED_BRIGHTNESS;
oled_rotation_t oled_rotation = 0;
uint8_t oled_rotation_width = 0;
@ -690,6 +692,30 @@ bool oled_scroll_off(void) {
return !oled_scrolling;
}
bool oled_invert(bool invert) {
if (!oled_initialized) {
return oled_inverted;
}
if (invert && !oled_inverted) {
static const uint8_t PROGMEM display_inverted[] = {I2C_CMD, INVERT_DISPLAY};
if (I2C_TRANSMIT_P(display_inverted) != I2C_STATUS_SUCCESS) {
print("oled_invert cmd failed\n");
return oled_inverted;
}
oled_inverted = true;
} else if (!invert && oled_inverted) {
static const uint8_t PROGMEM display_normal[] = {I2C_CMD, NORMAL_DISPLAY};
if (I2C_TRANSMIT_P(display_normal) != I2C_STATUS_SUCCESS) {
print("oled_invert cmd failed\n");
return oled_inverted;
}
oled_inverted = false;
}
return oled_inverted;
}
uint8_t oled_max_chars(void) {
if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
return OLED_DISPLAY_WIDTH / OLED_FONT_WIDTH;

4
drivers/oled/oled_driver.h
View file

@ -313,6 +313,10 @@ bool oled_scroll_left(void);
// Returns true if the screen was not scrolling or stops scrolling
bool oled_scroll_off(void);
// Inverts the display
// Returns true if the screen was or is inverted
bool oled_invert(bool invert);
// Returns the maximum number of characters that will fit on a line
uint8_t oled_max_chars(void);