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* Improve backlight PWM pin support (#6202)fauxpark2019-08-081-24/+23
| | | | | | | | | | | | | | | | * Improve backlight PWM pin support * I accidentally an equals sign * Another typo * Order by pin number * Throw an error if backlight pin is C4 or C5 on 16/32U4 * Use else for clarity * Minor alignment adjustments
* Correct backlight on state docs (#6358)fauxpark2019-07-181-2/+4
| | | | | | * Correct backlight on state docs * Reword to make it less confusing
* Extend maximum number of backlight levels to 31 (#6351)fauxpark2019-07-161-1/+1
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* Fix breathing always on for soft PWM (#5983)fauxpark2019-06-191-2/+8
| | | | | | | | | | * Fix breathing always on for soft PWM * Remove reference to hardware PWM pins in BACKLIGHT_BREATHING description Now, breathing will only be unsupported when Timers 1 and 3 are both used by Audio * Document BACKLIGHT_ON_STATE and its purpose
* Fix backlight breathing on C6 (#6102)fauxpark2019-06-171-7/+8
| | | | | | | | | | * Fix backlight breathing on C6 * Account for ATmega32A's single TIMSK register (MT40) * Document hardware PWM on D4 for ATmega32A * Add C6 and D4 to BACKLIGHT_PIN description
* Fix #3566 use an hardware timer for software PWM stability (#3615)Brice Figureau2019-04-221-2/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With my XD60, I noticed that when typing the backlight was flickering. The XD60 doesn't have the backlight wired to a hardware PWM pin. I assumed it was a timing issue in the matrix scan that made the PWM lit the LED a bit too longer. I verified it because the more keys that were pressed, the more lighting I observed. This patch makes the software PWM be called during CPU interruptions. It works almost like the hardware PWM, except instead of using the CPU waveform generation, the CPU will fire interruption when the LEDs need be turned on or off. Using the same timer system as for hardware PWM, when the counter will reach OCRxx (the current backlight level), an Output Compare match interrupt will be fired and we'll turn the LEDs off. When the counter reaches its maximum value, an overflow interrupt will be triggered in which we turn the LEDs on. This way we replicate the hardware backlight PWM duty cycle. This gives a better time stability of the PWM computation than pure software PWM, leading to a flicker free backlight. Since this is reusing the hardware PWM code, software PWM also supports backlight breathing. Note that if timer1 is used for audio, backlight will use timer3, and if timer3 is used for audio backlight will use timer1. If both timers are used for audio, then this feature is disabled and we revert to the matrix scan based PWM computation. Signed-off-by: Brice Figureau <brice@daysofwonder.com>
* Backlight - New option : BACKLIGHT_CAPS_LOCK (#4769)Rockman182019-01-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | * [BACKLIGHT_CAPS_LOCK_INDICATOR] Use backlight toggling as Caps Lock LED I've implemented this feature because S65-X doesn't have LED indicators and the existing led_set_kb(usb_led) function try to use backlight as indicator but that creates an inconsistency with backlight_config state. - define `BACKLIGHT_CAPS_LOCK_INDICATOR` to enable Caps Lock indicator using backlight (for keyboards without dedicated LED) - Don't turn off LED indicators when suspend because backlight is already turned off. Else led_set(0) will turn back on backlight. - Documentation has been updated * [BACKLIGHT_CAPS_LOCK_INDICATOR] Turn off all LED indicators except Caps Lock if BACKLIGHT_CAPS_LOCK_INDICATOR * [BACKLIGHT_CAPS_LOCK] Rename BACKLIGHT_CAPS_LOCK_INDICATOR * [BACKLIGHT_CAPS_LOCK] Use new IS_LED_ON method
* Backlight status functions (#4259)Phillip Tennen2018-11-141-8/+11
| | | | | | | | | | | | | | | | | | * add functions to set specific backlight state * add function to query backlight state * update documentation with new backlight functions * Update tmk_core/common/backlight.c Co-Authored-By: codyd51 <phillip.ennen@gmail.com> * Update tmk_core/common/backlight.h Co-Authored-By: codyd51 <phillip.ennen@gmail.com> * update docs for is_backlight_enabled() name change
* Fix incorrect doctoring in feature.backlight.md (#4244)Phillip Tennen2018-10-261-1/+1
| | | I'm guessing someone deleted a row at some point in the past, but I didn't blame it.
* Helpful functionsDrashna Jaelre2018-08-261-0/+19
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* Docs: Add Usage section to backlight docs (#3537)fauxpark2018-07-311-3/+13
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* Backlighting docs (#3526)fauxpark2018-07-301-19/+23
| | | | | | * Some words about backlighting * Link to RGB feature pages
* Clarify that we actually have max 16 total backlight levelsfauxpark2018-01-121-1/+1
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* Remove reference to BL_x in keycodes.md, and add BL_BRTGfauxpark2018-01-121-5/+5
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* backlight breathing overhaul (#2187)Balz Guenat2018-01-011-3/+25
| | | | | | | | | | | | | | | | | | | | * add breathing to bananasplit * backlight breathing overhaul * fix the backlight_tick thing. * fix for vision_division backlight * fix a few keymaps and probably break breathing for some weirdly set-up boards. * remove BL_x keycodes because they made unreasonable assumptions * some fixes for BL keycodes * integer cie lightness scaling * use cie lightness for non-breathing backlight and make breathing able to reach true max brightness
* Format keycode tablesfauxpark2017-12-091-9/+9
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* break up keymaps and quantum keycodes into files by featureskullY2017-08-161-0/+17