di0ib/tmk_keyboard_custom
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Experimental implement SoftPWM for GH60

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This commit is contained in:
Kai Ryu 2014-07-18 11:17:45 +09:00
parent 41182d2b35
commit 61051c74ee
2 changed files with 59 additions and 1 deletions
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1
keyboard/gh60/Makefile
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@ -139,6 +139,7 @@ USB_6KRO_ENABLE = yes # USB 6key Rollover
BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
KEYMAP_IN_EEPROM_ENABLE = yes # Read keymap from eeprom
KEYMAP_SECTION_ENABLE = yes # Fixed address keymap for keymap editor
SOFTPWM_LED_ENABLE = yes # Enable SoftPWM to drive backlight
BREATHING_LED_ENABLE = yes # Enable breathing backlight

57
keyboard/gh60/backlight.c
View File

@ -19,7 +19,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include "backlight.h"
#ifdef SOFTPWM_LED_ENABLE
#include "softpwm_led.h"
#else
#include "breathing_led.h"
#endif
#ifdef BACKLIGHT_ENABLE
@ -27,12 +31,14 @@ void backlight_enable(void);
void backlight_disable(void);
inline void backlight_set_raw(uint8_t raw);
#ifndef SOFTPWM_LED_ENABLE
#ifdef GH60_REV_CHN
#else
#define SOFTPWM_TIMER_TOP F_CPU/(256*64)
uint8_t softpwm_ocr = 0;
uint8_t softpwm_ocr_buff = 0;
#endif
#endif
static const uint8_t backlight_table[] PROGMEM = {
0, 16, 128, 255
@ -44,6 +50,16 @@ static const uint8_t backlight_table[] PROGMEM = {
*/
void backlight_enable(void)
{
#ifdef SOFTPWM_LED_ENABLE
#if defined(GH60_REV_CHN)
DDRB |= (1<<PB6);
PORTB &= ~(1<<PB6);
#else
DDRF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
PORTF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
#endif
softpwm_led_enable();
#else
#if defined(GH60_REV_CHN)
// Turn on PWM
DDRB |= (1<<PB6);
@ -62,10 +78,19 @@ void backlight_enable(void)
TIMSK1 |= (1<<OCIE1A);
sei();
#endif
#endif
}
void backlight_disable(void)
{
#ifdef SOFTPWM_LED_ENABLE
softpwm_led_disable();
#if defined(GH60_REV_CHN)
DDRB &= ~(1<<PB6);
#else
DDRF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
#endif
#else
#if defined(GH60_REV_CHN)
// Turn off PWM
cli();
@ -83,6 +108,7 @@ void backlight_disable(void)
sei();
OCR1A = 0;
#endif
#endif
}
void backlight_set(uint8_t level)
@ -120,22 +146,52 @@ void backlight_set(uint8_t level)
#endif
}
#ifndef SOFTPWM_LED_ENABLE
#ifdef BREATHING_LED_ENABLE
void breathing_led_set_raw(uint8_t raw)
{
backlight_set_raw(raw);
}
#endif
#endif
inline void backlight_set_raw(uint8_t raw)
{
#ifdef SOFTPWM_LED_ENABLE
softpwm_led_set(raw);
#else
#if defined(GH60_REV_CHN)
OCR1B = raw;
#else
softpwm_ocr_buff = raw;
#endif
#endif
}
#ifdef SOFTPWM_LED_ENABLE
void softpwm_led_on(void)
{
#if defined(GH60_REV_CHN)
PORTB |= (1<<PB6);
#else
PORTF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
#endif
}
void softpwm_led_off(void)
{
#if defined(GH60_REV_CHN)
PORTB &= ~(1<<PB6);
#else
PORTF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
#endif
}
#endif
#ifndef SOFTPWM_LED_ENABLE
#if defined(GH60_REV_CHN)
#else
ISR(TIMER1_COMPA_vect)
@ -155,5 +211,6 @@ ISR(TIMER1_COMPA_vect)
}
}
#endif
#endif
#endif