From 5cecc1ea1ec8df3b74d01f96336dee2c2f5c6f4e Mon Sep 17 00:00:00 2001 From: Ryan Date: Thu, 29 Oct 2020 18:12:50 +1100 Subject: [PATCH] Add brightness level API to OLED driver (#10772) * Add brightness level API to OLED driver * Set default brightness to 255 --- docs/feature_oled_driver.md | 11 +++++++++-- drivers/oled/oled_driver.c | 17 ++++++++++++++++- drivers/oled/oled_driver.h | 10 ++++++++++ .../handwired/onekey/keymaps/oled/keymap.c | 6 ++++++ 4 files changed, 41 insertions(+), 3 deletions(-) diff --git a/docs/feature_oled_driver.md b/docs/feature_oled_driver.md index 9e33a321ce..9f0ef1664b 100644 --- a/docs/feature_oled_driver.md +++ b/docs/feature_oled_driver.md @@ -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.
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); diff --git a/drivers/oled/oled_driver.c b/drivers/oled/oled_driver.c index 0b24a987de..ba11db1d2a 100644 --- a/drivers/oled/oled_driver.c +++ b/drivers/oled/oled_driver.c @@ -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. diff --git a/drivers/oled/oled_driver.h b/drivers/oled/oled_driver.h index 58e2bb7386..72ab21247d 100644 --- a/drivers/oled/oled_driver.h +++ b/drivers/oled/oled_driver.h @@ -141,6 +141,10 @@ along with this program. If not, see . #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); diff --git a/keyboards/handwired/onekey/keymaps/oled/keymap.c b/keyboards/handwired/onekey/keymaps/oled/keymap.c index b6e66ace74..1c120d01c1 100644 --- a/keyboards/handwired/onekey/keymaps/oled/keymap.c +++ b/keyboards/handwired/onekey/keymaps/oled/keymap.c @@ -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; }