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Add brightness level API to OLED driver (#10772) 

* Add brightness level API to OLED driver

* Set default brightness to 255
This commit is contained in:
Ryan 2020-10-29 18:12:50 +11:00 committed by GitHub
parent b9ed9d33d3
commit 5cecc1ea1e
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4 changed files with 41 additions and 3 deletions
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11
docs/feature_oled_driver.md
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@ -140,8 +140,8 @@ void oled_task_user(void) {
|---------------------------|-----------------|--------------------------------------------------------------------------------------------------------------------------|
|`OLED_DISPLAY_ADDRESS` |`0x3C` |The i2c address of the OLED Display |
|`OLED_FONT_H` |`"glcdfont.c"` |The font code file to use for custom fonts |
|`OLED_FONT_START` |`0` |The starting characer index for custom fonts |
|`OLED_FONT_END` |`223` |The ending characer index for custom fonts |
|`OLED_FONT_START` |`0` |The starting character index for custom fonts |
|`OLED_FONT_END` |`223` |The ending character index for custom fonts |
|`OLED_FONT_WIDTH` |`6` |The font width |
|`OLED_FONT_HEIGHT` |`8` |The font height (untested) |
|`OLED_TIMEOUT` |`60000` |Turns off the OLED screen after 60000ms of keyboard inactivity. Helps reduce OLED Burn-in. Set to 0 to disable. |
@ -149,6 +149,7 @@ void oled_task_user(void) {
|`OLED_SCROLL_TIMEOUT_RIGHT`|*Not defined* |Scroll timeout direction is right when defined, left when undefined. |
|`OLED_IC` |`OLED_IC_SSD1306`|Set to `OLED_IC_SH1106` if you're using the SH1106 OLED controller. |
|`OLED_COLUMN_OFFSET` |`0` |(SH1106 only.) Shift output to the right this many pixels.<br />Useful for 128x64 displays centered on a 132x64 SH1106 IC.|
|`OLED_BRIGHTNESS` |`255` |The default brightness level of the OLED, from 0 to 255. |
## 128x64 & Custom sized OLED Displays
@ -304,6 +305,12 @@ bool oled_off(void);
// not
bool is_oled_on(void);
// Sets the brightness level of the display
uint8_t oled_set_brightness(uint8_t level);
// Gets the current brightness level of the display
uint8_t oled_get_brightness(void);
// Basically it's oled_render, but with timeout management and oled_task_user calling!
void oled_task(void);

17
drivers/oled/oled_driver.c
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@ -107,6 +107,7 @@ OLED_BLOCK_TYPE oled_dirty = 0;
bool oled_initialized = false;
bool oled_active = false;
bool oled_scrolling = false;
uint8_t oled_brightness = OLED_BRIGHTNESS;
uint8_t oled_rotation = 0;
uint8_t oled_rotation_width = 0;
uint8_t oled_scroll_speed = 0; // this holds the speed after being remapped to ssd1306 internal values
@ -193,7 +194,7 @@ bool oled_init(uint8_t rotation) {
}
}
static const uint8_t PROGMEM display_setup2[] = {I2C_CMD, COM_PINS, OLED_COM_PINS, CONTRAST, 0x8F, PRE_CHARGE_PERIOD, 0xF1, VCOM_DETECT, 0x40, DISPLAY_ALL_ON_RESUME, NORMAL_DISPLAY, DEACTIVATE_SCROLL, DISPLAY_ON};
static const uint8_t PROGMEM display_setup2[] = {I2C_CMD, COM_PINS, OLED_COM_PINS, CONTRAST, OLED_BRIGHTNESS, PRE_CHARGE_PERIOD, 0xF1, VCOM_DETECT, 0x20, DISPLAY_ALL_ON_RESUME, NORMAL_DISPLAY, DEACTIVATE_SCROLL, DISPLAY_ON};
if (I2C_TRANSMIT_P(display_setup2) != I2C_STATUS_SUCCESS) {
print("display_setup2 failed\n");
return false;
@ -550,6 +551,20 @@ bool oled_off(void) {
bool is_oled_on(void) { return oled_active; }
uint8_t oled_set_brightness(uint8_t level) {
uint8_t set_contrast[] = {I2C_CMD, CONTRAST, level};
if (oled_brightness != level) {
if (I2C_TRANSMIT(set_contrast) != I2C_STATUS_SUCCESS) {
print("set_brightness cmd failed\n");
return oled_brightness;
}
oled_brightness = level;
}
return oled_brightness;
}
uint8_t oled_get_brightness(void) { return oled_brightness; }
// Set the specific 8 lines rows of the screen to scroll.
// 0 is the default for start, and 7 for end, which is the entire
// height of the screen. For 128x32 screens, rows 4-7 are not used.

10
drivers/oled/oled_driver.h
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@ -141,6 +141,10 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#if !defined(OLED_FONT_HEIGHT)
# define OLED_FONT_HEIGHT 8
#endif
// Default brightness level
#if !defined(OLED_BRIGHTNESS)
# define OLED_BRIGHTNESS 255
#endif
#if !defined(OLED_TIMEOUT)
# if defined(OLED_DISABLE_TIMEOUT)
@ -261,6 +265,12 @@ bool oled_off(void);
// not
bool is_oled_on(void);
// Sets the brightness of the display
uint8_t oled_set_brightness(uint8_t level);
// Gets the current brightness of the display
uint8_t oled_get_brightness(void);
// Basically it's oled_render, but with timeout management and oled_task_user calling!
void oled_task(void);

6
keyboards/handwired/onekey/keymaps/oled/keymap.c
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@ -144,6 +144,12 @@ static void dance_oled_finished(qk_tap_dance_state_t *state, void *user_data) {
}
}
break;
case 4:
if (!state->pressed) {
// quadruple tap - step through brightness levels
oled_set_brightness(oled_get_brightness() + 0x10);
}
break;
default:
break;
}