* Add: RGB underglow support using SPI to SteamVan and CO60 * Update: Switch to QMK's baclight implementation for CO60 and SteamVan * Fix: Remove now unnecessary backlighting code from keyboard filespull/7881/head
@ -1,240 +0,0 @@ | |||
/* | |||
Copyright 2012 Jun Wako <wakojun@gmail.com> | |||
This program is free software: you can redistribute it and/or modify | |||
it under the terms of the GNU General Public License as published by | |||
the Free Software Foundation, either version 2 of the License, or | |||
(at your option) any later version. | |||
This program is distributed in the hope that it will be useful, | |||
but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
GNU General Public License for more details. | |||
You should have received a copy of the GNU General Public License | |||
along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
*/ | |||
#include "hal.h" | |||
#include "led_custom.h" | |||
#include "rev6.h" | |||
#include "printf.h" | |||
static void breathing_callback(PWMDriver *pwmp); | |||
static PWMConfig pwmCFG = { | |||
0xFFFF, /* PWM clock frequency */ | |||
256, /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */ | |||
NULL, /* No Callback */ | |||
{ | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 3 */ | |||
{PWM_OUTPUT_DISABLED, NULL} | |||
}, | |||
0, /* HW dependent part.*/ | |||
0 | |||
}; | |||
static PWMConfig pwmCFG_breathing = { | |||
0xFFFF, /* 10kHz PWM clock frequency */ | |||
256, /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */ | |||
breathing_callback, /* Breathing Callback */ | |||
{ | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 3 */ | |||
{PWM_OUTPUT_DISABLED, NULL} | |||
}, | |||
0, /* HW dependent part.*/ | |||
0 | |||
}; | |||
// See http://jared.geek.nz/2013/feb/linear-led-pwm | |||
static uint16_t cie_lightness(uint16_t v) { | |||
if (v <= 5243) // if below 8% of max | |||
return v / 9; // same as dividing by 900% | |||
else { | |||
uint32_t y = (((uint32_t)v + 10486) << 8) / (10486 + 0xFFFFUL); // add 16% of max and compare | |||
// to get a useful result with integer division, we shift left in the expression above | |||
// and revert what we've done again after squaring. | |||
y = y * y * y >> 8; | |||
if (y > 0xFFFFUL) // prevent overflow | |||
return 0xFFFFU; | |||
else | |||
return (uint16_t)y; | |||
} | |||
} | |||
void backlight_init_ports(void) { | |||
palSetPadMode(GPIOB, 8, PAL_MODE_ALTERNATE(2)); | |||
pwmStart(&PWMD4, &pwmCFG); | |||
if (kb_backlight_config.enable) { | |||
if (kb_backlight_config.breathing) { | |||
breathing_enable(); | |||
} else { | |||
backlight_set(kb_backlight_config.level); | |||
} | |||
} else { | |||
backlight_set(0); | |||
} | |||
} | |||
void backlight_set(uint8_t level) { | |||
uint32_t duty = (uint32_t)(cie_lightness(0xFFFF * (uint32_t)level / BACKLIGHT_LEVELS)); | |||
if (level == 0) { | |||
// Turn backlight off | |||
// Disable channel 3 on PWM4 | |||
pwmDisableChannel(&PWMD4, 2); | |||
} else { | |||
// Turn backlight on | |||
if (!is_breathing()) { | |||
// Enable channel 3 on PWM4 | |||
pwmEnableChannel(&PWMD4, 2, PWM_FRACTION_TO_WIDTH(&PWMD4, 0xFFFF, duty)); | |||
} | |||
} | |||
} | |||
uint8_t backlight_tick = 0; | |||
void backlight_task(void) { | |||
} | |||
#define BREATHING_NO_HALT 0 | |||
#define BREATHING_HALT_OFF 1 | |||
#define BREATHING_HALT_ON 2 | |||
#define BREATHING_STEPS 128 | |||
static uint8_t breathing_period = BREATHING_PERIOD; | |||
static uint8_t breathing_halt = BREATHING_NO_HALT; | |||
static uint16_t breathing_counter = 0; | |||
bool is_breathing(void) { | |||
return PWMD4.config == &pwmCFG_breathing; | |||
} | |||
#define breathing_min() do {breathing_counter = 0;} while (0) | |||
#define breathing_max() do {breathing_counter = breathing_period * 256 / 2;} while (0) | |||
void breathing_interrupt_enable(void){ | |||
pwmStop(&PWMD4); | |||
pwmStart(&PWMD4, &pwmCFG_breathing); | |||
chSysLockFromISR(); | |||
pwmEnablePeriodicNotification(&PWMD4); | |||
pwmEnableChannelI( | |||
&PWMD4, | |||
2, | |||
PWM_FRACTION_TO_WIDTH( | |||
&PWMD4, | |||
0xFFFF, | |||
0xFFFF | |||
) | |||
); | |||
chSysUnlockFromISR(); | |||
} | |||
void breathing_interrupt_disable(void){ | |||
pwmStop(&PWMD4); | |||
pwmStart(&PWMD4, &pwmCFG); | |||
} | |||
void breathing_enable(void) | |||
{ | |||
breathing_counter = 0; | |||
breathing_halt = BREATHING_NO_HALT; | |||
breathing_interrupt_enable(); | |||
} | |||
void breathing_pulse(void) | |||
{ | |||
if (kb_backlight_config.level == 0) | |||
breathing_min(); | |||
else | |||
breathing_max(); | |||
breathing_halt = BREATHING_HALT_ON; | |||
breathing_interrupt_enable(); | |||
} | |||
void breathing_disable(void) | |||
{ | |||
breathing_interrupt_disable(); | |||
// Restore backlight level | |||
backlight_set(kb_backlight_config.level); | |||
} | |||
void breathing_self_disable(void) | |||
{ | |||
if (kb_backlight_config.level == 0) | |||
breathing_halt = BREATHING_HALT_OFF; | |||
else | |||
breathing_halt = BREATHING_HALT_ON; | |||
} | |||
void breathing_toggle(void) { | |||
if (is_breathing()){ | |||
breathing_disable(); | |||
} else { | |||
breathing_enable(); | |||
} | |||
} | |||
void breathing_period_set(uint8_t value) | |||
{ | |||
if (!value) | |||
value = 1; | |||
breathing_period = value; | |||
} | |||
void breathing_period_default(void) { | |||
breathing_period_set(BREATHING_PERIOD); | |||
} | |||
void breathing_period_inc(void) | |||
{ | |||
breathing_period_set(breathing_period+1); | |||
} | |||
void breathing_period_dec(void) | |||
{ | |||
breathing_period_set(breathing_period-1); | |||
} | |||
/* To generate breathing curve in python: | |||
* from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)] | |||
*/ | |||
static const uint8_t breathing_table[BREATHING_STEPS] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 28, 32, 36, 41, 46, 51, 57, 63, 70, 76, 83, 91, 98, 106, 113, 121, 129, 138, 146, 154, 162, 170, 178, 185, 193, 200, 207, 213, 220, 225, 231, 235, 240, 244, 247, 250, 252, 253, 254, 255, 254, 253, 252, 250, 247, 244, 240, 235, 231, 225, 220, 213, 207, 200, 193, 185, 178, 170, 162, 154, 146, 138, 129, 121, 113, 106, 98, 91, 83, 76, 70, 63, 57, 51, 46, 41, 36, 32, 28, 24, 20, 17, 15, 12, 10, 8, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; | |||
// Use this before the cie_lightness function. | |||
static inline uint16_t scale_backlight(uint16_t v) { | |||
return v / BACKLIGHT_LEVELS * kb_backlight_config.level; | |||
} | |||
static void breathing_callback(PWMDriver *pwmp) | |||
{ | |||
(void)pwmp; | |||
uint16_t interval = (uint16_t) breathing_period * 256 / BREATHING_STEPS; | |||
// resetting after one period to prevent ugly reset at overflow. | |||
breathing_counter = (breathing_counter + 1) % (breathing_period * 256); | |||
uint8_t index = breathing_counter / interval % BREATHING_STEPS; | |||
if (((breathing_halt == BREATHING_HALT_ON) && (index == BREATHING_STEPS / 2)) || | |||
((breathing_halt == BREATHING_HALT_OFF) && (index == BREATHING_STEPS - 1))) | |||
{ | |||
breathing_interrupt_disable(); | |||
} | |||
uint32_t duty = cie_lightness(scale_backlight(breathing_table[index] * 256)); | |||
chSysLockFromISR(); | |||
pwmEnableChannelI( | |||
&PWMD4, | |||
2, | |||
PWM_FRACTION_TO_WIDTH( | |||
&PWMD4, | |||
0xFFFF, | |||
duty | |||
) | |||
); | |||
chSysUnlockFromISR(); | |||
} |
@ -1,22 +0,0 @@ | |||
/* | |||
* Copyright 2019 John M Daly <jmdaly@gmail.com> | |||
* | |||
* This program is free software: you can redistribute it and/or modify | |||
* it under the terms of the GNU General Public License as published by | |||
* the Free Software Foundation, either version 2 of the License, or | |||
* (at your option) any later version. | |||
* | |||
* This program is distributed in the hope that it will be useful, | |||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
* GNU General Public License for more details. | |||
* | |||
* You should have received a copy of the GNU General Public License | |||
* along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
*/ | |||
#pragma once | |||
void backlight_task(void); | |||
void breathing_interrupt_disable(void); | |||
void breathing_interrupt_enable(void); |
@ -1,242 +0,0 @@ | |||
/* | |||
Copyright 2012 Jun Wako <wakojun@gmail.com> | |||
This program is free software: you can redistribute it and/or modify | |||
it under the terms of the GNU General Public License as published by | |||
the Free Software Foundation, either version 2 of the License, or | |||
(at your option) any later version. | |||
This program is distributed in the hope that it will be useful, | |||
but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
GNU General Public License for more details. | |||
You should have received a copy of the GNU General Public License | |||
along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
*/ | |||
#include "hal.h" | |||
#include "led_custom.h" | |||
#include "rev7.h" | |||
#include "printf.h" | |||
static void breathing_callback(PWMDriver *pwmp); | |||
static PWMConfig pwmCFG = { | |||
0xFFFF, /* PWM clock frequency */ | |||
256, /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */ | |||
NULL, /* No Callback */ | |||
{ | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 3 */ | |||
{PWM_OUTPUT_DISABLED, NULL} | |||
}, | |||
0, /* HW dependent part.*/ | |||
0 | |||
}; | |||
static PWMConfig pwmCFG_breathing = { | |||
0xFFFF, /* 10kHz PWM clock frequency */ | |||
256, /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */ | |||
breathing_callback, /* Breathing Callback */ | |||
{ | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 3 */ | |||
{PWM_OUTPUT_DISABLED, NULL} | |||
}, | |||
0, /* HW dependent part.*/ | |||
0 | |||
}; | |||
// See http://jared.geek.nz/2013/feb/linear-led-pwm | |||
static uint16_t cie_lightness(uint16_t v) { | |||
if (v <= 5243) // if below 8% of max | |||
return v / 9; // same as dividing by 900% | |||
else { | |||
uint32_t y = (((uint32_t) v + 10486) << 8) / (10486 + 0xFFFFUL); // add 16% of max and compare | |||
// to get a useful result with integer division, we shift left in the expression above | |||
// and revert what we've done again after squaring. | |||
y = y * y * y >> 8; | |||
if (y > 0xFFFFUL) // prevent overflow | |||
return 0xFFFFU; | |||
else | |||
return (uint16_t) y; | |||
} | |||
} | |||
void backlight_init_ports(void) { | |||
palSetPadMode(GPIOB, 8, PAL_MODE_ALTERNATE(2)); | |||
pwmStart(&PWMD4, &pwmCFG); | |||
if(kb_backlight_config.enable){ | |||
if(kb_backlight_config.breathing){ | |||
breathing_enable(); | |||
} else{ | |||
backlight_set(kb_backlight_config.level); | |||
} | |||
} else { | |||
backlight_set(0); | |||
} | |||
} | |||
void backlight_set(uint8_t level) { | |||
uint32_t duty = (uint32_t)(cie_lightness(0xFFFF * (uint32_t) level / BACKLIGHT_LEVELS)); | |||
if (level == 0) { | |||
// Turn backlight off | |||
// Disable channel 3 on PWM4 | |||
pwmDisableChannel(&PWMD4, 2); | |||
} else { | |||
// Turn backlight on | |||
if(!is_breathing()){ | |||
// Enable channel 3 on PWM4 | |||
pwmEnableChannel(&PWMD4, 2, PWM_FRACTION_TO_WIDTH(&PWMD4,0xFFFF,duty)); | |||
} | |||
} | |||
} | |||
uint8_t backlight_tick = 0; | |||
void backlight_task(void) { | |||
} | |||
#define BREATHING_NO_HALT 0 | |||
#define BREATHING_HALT_OFF 1 | |||
#define BREATHING_HALT_ON 2 | |||
#define BREATHING_STEPS 128 | |||
static uint8_t breathing_period = BREATHING_PERIOD; | |||
static uint8_t breathing_halt = BREATHING_NO_HALT; | |||
static uint16_t breathing_counter = 0; | |||
bool is_breathing(void) { | |||
return PWMD4.config == &pwmCFG_breathing; | |||
} | |||
#define breathing_min() do {breathing_counter = 0;} while (0) | |||
#define breathing_max() do {breathing_counter = breathing_period * 256 / 2;} while (0) | |||
void breathing_interrupt_enable(void){ | |||
pwmStop(&PWMD4); | |||
pwmStart(&PWMD4, &pwmCFG_breathing); | |||
chSysLockFromISR(); | |||
pwmEnablePeriodicNotification(&PWMD4); | |||
pwmEnableChannelI( | |||
&PWMD4, | |||
2, | |||
PWM_FRACTION_TO_WIDTH( | |||
&PWMD4, | |||
0xFFFF, | |||
0xFFFF | |||
) | |||
); | |||
chSysUnlockFromISR(); | |||
} | |||
void breathing_interrupt_disable(void){ | |||
pwmStop(&PWMD4); | |||
pwmStart(&PWMD4, &pwmCFG); | |||
} | |||
void breathing_enable(void) | |||
{ | |||
breathing_counter = 0; | |||
breathing_halt = BREATHING_NO_HALT; | |||
breathing_interrupt_enable(); | |||
} | |||
void breathing_pulse(void) | |||
{ | |||
if (kb_backlight_config.level == 0) | |||
breathing_min(); | |||
else | |||
breathing_max(); | |||
breathing_halt = BREATHING_HALT_ON; | |||
breathing_interrupt_enable(); | |||
} | |||
void breathing_disable(void) | |||
{ | |||
breathing_interrupt_disable(); | |||
// Restore backlight level | |||
backlight_set(kb_backlight_config.level); | |||
} | |||
void breathing_self_disable(void) | |||
{ | |||
if (kb_backlight_config.level == 0) | |||
breathing_halt = BREATHING_HALT_OFF; | |||
else | |||
breathing_halt = BREATHING_HALT_ON; | |||
} | |||
void breathing_toggle(void) { | |||
if (is_breathing()){ | |||
breathing_disable(); | |||
} else { | |||
breathing_enable(); | |||
} | |||
} | |||
void breathing_period_set(uint8_t value) | |||
{ | |||
if (!value) | |||
value = 1; | |||
breathing_period = value; | |||
} | |||
void breathing_period_default(void) { | |||
breathing_period_set(BREATHING_PERIOD); | |||
} | |||
void breathing_period_inc(void) | |||
{ | |||
breathing_period_set(breathing_period+1); | |||
} | |||
void breathing_period_dec(void) | |||
{ | |||
breathing_period_set(breathing_period-1); | |||
} | |||
/* To generate breathing curve in python: | |||
* from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)] | |||
*/ | |||
static const uint8_t breathing_table[BREATHING_STEPS] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 28, 32, 36, 41, 46, 51, 57, 63, 70, 76, 83, 91, 98, 106, 113, 121, 129, 138, 146, 154, 162, 170, 178, 185, 193, 200, 207, 213, 220, 225, 231, 235, 240, 244, 247, 250, 252, 253, 254, 255, 254, 253, 252, 250, 247, 244, 240, 235, 231, 225, 220, 213, 207, 200, 193, 185, 178, 170, 162, 154, 146, 138, 129, 121, 113, 106, 98, 91, 83, 76, 70, 63, 57, 51, 46, 41, 36, 32, 28, 24, 20, 17, 15, 12, 10, 8, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; | |||
// Use this before the cie_lightness function. | |||
static inline uint16_t scale_backlight(uint16_t v) { | |||
return v / BACKLIGHT_LEVELS * kb_backlight_config.level; | |||
} | |||
static void breathing_callback(PWMDriver *pwmp) | |||
{ | |||
(void)pwmp; | |||
uint16_t interval = (uint16_t) breathing_period * 256 / BREATHING_STEPS; | |||
// resetting after one period to prevent ugly reset at overflow. | |||
breathing_counter = (breathing_counter + 1) % (breathing_period * 256); | |||
uint8_t index = breathing_counter / interval % BREATHING_STEPS; | |||
if (((breathing_halt == BREATHING_HALT_ON) && (index == BREATHING_STEPS / 2)) || | |||
((breathing_halt == BREATHING_HALT_OFF) && (index == BREATHING_STEPS - 1))) | |||
{ | |||
breathing_interrupt_disable(); | |||
} | |||
uint32_t duty = cie_lightness(scale_backlight(breathing_table[index] * 256)); | |||
chSysLockFromISR(); | |||
pwmEnableChannelI( | |||
&PWMD4, | |||
2, | |||
PWM_FRACTION_TO_WIDTH( | |||
&PWMD4, | |||
0xFFFF, | |||
duty | |||
) | |||
); | |||
chSysUnlockFromISR(); | |||
} |
@ -1,22 +0,0 @@ | |||
/* | |||
Copyright 2019 John M Daly <jmdaly@gmail.com> | |||
This program is free software: you can redistribute it and/or modify | |||
it under the terms of the GNU General Public License as published by | |||
the Free Software Foundation, either version 2 of the License, or | |||
(at your option) any later version. | |||
This program is distributed in the hope that it will be useful, | |||
but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
GNU General Public License for more details. | |||
You should have received a copy of the GNU General Public License | |||
along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
*/ | |||
#pragma once | |||
void backlight_task(void); | |||
void breathing_interrupt_disable(void); | |||
void breathing_interrupt_enable(void); |
@ -1,242 +0,0 @@ | |||
/* | |||
Copyright 2012 Jun Wako <wakojun@gmail.com> | |||
This program is free software: you can redistribute it and/or modify | |||
it under the terms of the GNU General Public License as published by | |||
the Free Software Foundation, either version 2 of the License, or | |||
(at your option) any later version. | |||
This program is distributed in the hope that it will be useful, | |||
but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
GNU General Public License for more details. | |||
You should have received a copy of the GNU General Public License | |||
along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
*/ | |||
#include "hal.h" | |||
#include "led_custom.h" | |||
#include "rev1.h" | |||
#include "printf.h" | |||
static void breathing_callback(PWMDriver *pwmp); | |||
static PWMConfig pwmCFG = { | |||
0xFFFF, /* PWM clock frequency */ | |||
256, /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */ | |||
NULL, /* No Callback */ | |||
{ | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 3 */ | |||
{PWM_OUTPUT_DISABLED, NULL} | |||
}, | |||
0, /* HW dependent part.*/ | |||
0 | |||
}; | |||
static PWMConfig pwmCFG_breathing = { | |||
0xFFFF, /* 10kHz PWM clock frequency */ | |||
256, /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */ | |||
breathing_callback, /* Breathing Callback */ | |||
{ | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_DISABLED, NULL}, | |||
{PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 3 */ | |||
{PWM_OUTPUT_DISABLED, NULL} | |||
}, | |||
0, /* HW dependent part.*/ | |||
0 | |||
}; | |||
// See http://jared.geek.nz/2013/feb/linear-led-pwm | |||
static uint16_t cie_lightness(uint16_t v) { | |||
if (v <= 5243) // if below 8% of max | |||
return v / 9; // same as dividing by 900% | |||
else { | |||
uint32_t y = (((uint32_t) v + 10486) << 8) / (10486 + 0xFFFFUL); // add 16% of max and compare | |||
// to get a useful result with integer division, we shift left in the expression above | |||
// and revert what we've done again after squaring. | |||
y = y * y * y >> 8; | |||
if (y > 0xFFFFUL) // prevent overflow | |||
return 0xFFFFU; | |||
else | |||
return (uint16_t) y; | |||
} | |||
} | |||
void backlight_init_ports(void) { | |||
palSetPadMode(GPIOB, 8, PAL_MODE_ALTERNATE(2)); | |||
pwmStart(&PWMD4, &pwmCFG); | |||
if(kb_backlight_config.enable){ | |||
if(kb_backlight_config.breathing){ | |||
breathing_enable(); | |||
} else{ | |||
backlight_set(kb_backlight_config.level); | |||
} | |||
} else { | |||
backlight_set(0); | |||
} | |||
} | |||
void backlight_set(uint8_t level) { | |||
uint32_t duty = (uint32_t)(cie_lightness(0xFFFF * (uint32_t) level / BACKLIGHT_LEVELS)); | |||
if (level == 0) { | |||
// Turn backlight off | |||
// Disable channel 3 on PWM4 | |||
pwmDisableChannel(&PWMD4, 2); | |||
} else { | |||
// Turn backlight on | |||
if(!is_breathing()){ | |||
// Enable channel 3 on PWM4 | |||
pwmEnableChannel(&PWMD4, 2, PWM_FRACTION_TO_WIDTH(&PWMD4,0xFFFF,duty)); | |||
} | |||
} | |||
} | |||
uint8_t backlight_tick = 0; | |||
void backlight_task(void) { | |||
} | |||
#define BREATHING_NO_HALT 0 | |||
#define BREATHING_HALT_OFF 1 | |||
#define BREATHING_HALT_ON 2 | |||
#define BREATHING_STEPS 128 | |||
static uint8_t breathing_period = BREATHING_PERIOD; | |||
static uint8_t breathing_halt = BREATHING_NO_HALT; | |||
static uint16_t breathing_counter = 0; | |||
bool is_breathing(void) { | |||
return PWMD4.config == &pwmCFG_breathing; | |||
} | |||
#define breathing_min() do {breathing_counter = 0;} while (0) | |||
#define breathing_max() do {breathing_counter = breathing_period * 256 / 2;} while (0) | |||
void breathing_interrupt_enable(void){ | |||
pwmStop(&PWMD4); | |||
pwmStart(&PWMD4, &pwmCFG_breathing); | |||
chSysLockFromISR(); | |||
pwmEnablePeriodicNotification(&PWMD4); | |||
pwmEnableChannelI( | |||
&PWMD4, | |||
2, | |||
PWM_FRACTION_TO_WIDTH( | |||
&PWMD4, | |||
0xFFFF, | |||
0xFFFF | |||
) | |||
); | |||
chSysUnlockFromISR(); | |||
} | |||
void breathing_interrupt_disable(void){ | |||
pwmStop(&PWMD4); | |||
pwmStart(&PWMD4, &pwmCFG); | |||
} | |||
void breathing_enable(void) | |||
{ | |||
breathing_counter = 0; | |||
breathing_halt = BREATHING_NO_HALT; | |||
breathing_interrupt_enable(); | |||
} | |||
void breathing_pulse(void) | |||
{ | |||
if (kb_backlight_config.level == 0) | |||
breathing_min(); | |||
else | |||
breathing_max(); | |||
breathing_halt = BREATHING_HALT_ON; | |||
breathing_interrupt_enable(); | |||
} | |||
void breathing_disable(void) | |||
{ | |||
breathing_interrupt_disable(); | |||
// Restore backlight level | |||
backlight_set(kb_backlight_config.level); | |||
} | |||
void breathing_self_disable(void) | |||
{ | |||
if (kb_backlight_config.level == 0) | |||
breathing_halt = BREATHING_HALT_OFF; | |||
else | |||
breathing_halt = BREATHING_HALT_ON; | |||
} | |||
void breathing_toggle(void) { | |||
if (is_breathing()){ | |||
breathing_disable(); | |||
} else { | |||
breathing_enable(); | |||
} | |||
} | |||
void breathing_period_set(uint8_t value) | |||
{ | |||
if (!value) | |||
value = 1; | |||
breathing_period = value; | |||
} | |||
void breathing_period_default(void) { | |||
breathing_period_set(BREATHING_PERIOD); | |||
} | |||
void breathing_period_inc(void) | |||
{ | |||
breathing_period_set(breathing_period+1); | |||
} | |||
void breathing_period_dec(void) | |||
{ | |||
breathing_period_set(breathing_period-1); | |||
} | |||
/* To generate breathing curve in python: | |||
* from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)] | |||
*/ | |||
static const uint8_t breathing_table[BREATHING_STEPS] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 28, 32, 36, 41, 46, 51, 57, 63, 70, 76, 83, 91, 98, 106, 113, 121, 129, 138, 146, 154, 162, 170, 178, 185, 193, 200, 207, 213, 220, 225, 231, 235, 240, 244, 247, 250, 252, 253, 254, 255, 254, 253, 252, 250, 247, 244, 240, 235, 231, 225, 220, 213, 207, 200, 193, 185, 178, 170, 162, 154, 146, 138, 129, 121, 113, 106, 98, 91, 83, 76, 70, 63, 57, 51, 46, 41, 36, 32, 28, 24, 20, 17, 15, 12, 10, 8, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; | |||
// Use this before the cie_lightness function. | |||
static inline uint16_t scale_backlight(uint16_t v) { | |||
return v / BACKLIGHT_LEVELS * kb_backlight_config.level; | |||
} | |||
static void breathing_callback(PWMDriver *pwmp) | |||
{ | |||
(void)pwmp; | |||
uint16_t interval = (uint16_t) breathing_period * 256 / BREATHING_STEPS; | |||
// resetting after one period to prevent ugly reset at overflow. | |||
breathing_counter = (breathing_counter + 1) % (breathing_period * 256); | |||
uint8_t index = breathing_counter / interval % BREATHING_STEPS; | |||
if (((breathing_halt == BREATHING_HALT_ON) && (index == BREATHING_STEPS / 2)) || | |||
((breathing_halt == BREATHING_HALT_OFF) && (index == BREATHING_STEPS - 1))) | |||
{ | |||
breathing_interrupt_disable(); | |||
} | |||
uint32_t duty = cie_lightness(scale_backlight(breathing_table[index] * 256)); | |||
chSysLockFromISR(); | |||
pwmEnableChannelI( | |||
&PWMD4, | |||
2, | |||
PWM_FRACTION_TO_WIDTH( | |||
&PWMD4, | |||
0xFFFF, | |||
duty | |||
) | |||
); | |||
chSysUnlockFromISR(); | |||
} |
@ -1,22 +0,0 @@ | |||
/* | |||
Copyright 2019 John M Daly <jmdaly@gmail.com> | |||
This program is free software: you can redistribute it and/or modify | |||
it under the terms of the GNU General Public License as published by | |||
the Free Software Foundation, either version 2 of the License, or | |||
(at your option) any later version. | |||
This program is distributed in the hope that it will be useful, | |||
but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
GNU General Public License for more details. | |||
You should have received a copy of the GNU General Public License | |||
along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
*/ | |||
#pragma once | |||
void backlight_task(void); | |||
void breathing_interrupt_disable(void); | |||
void breathing_interrupt_enable(void); |