di0ib/tmk_keyboard_custom
Archived
1
0
Fork 0
Code Releases Activity

New branch for SoftPWM feature

Browse Source
This commit is contained in:
Kai Ryu 2014-07-18 11:15:30 +09:00
parent 2054605530
commit 0054ff79cd
4 changed files with 211 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
common.mk
View File

@ -58,10 +58,18 @@ ifdef SLEEP_LED_ENABLE
OPT_DEFS += -DNO_SUSPEND_POWER_DOWN
endif
ifdef SOFTPWM_LED_ENABLE
SRC += $(COMMON_DIR)/softpwm_led.c
OPT_DEFS += -DSOFTPWM_LED_ENABLE
ifdef BREATHING_LED_ENABLE
OPT_DEFS += -DBREATHING_LED_ENABLE
endif
else
ifdef BREATHING_LED_ENABLE
SRC += $(COMMON_DIR)/breathing_led.c
OPT_DEFS += -DBREATHING_LED_ENABLE
endif
endif
ifdef BACKLIGHT_ENABLE
SRC += $(COMMON_DIR)/backlight.c

8
common/keyboard.c
View File

@ -31,7 +31,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "bootmagic.h"
#include "eeconfig.h"
#include "backlight.h"
#ifdef SOFTPWM_LED_ENABLE
#include "softpwm_led.h"
#else
#include "breathing_led.h"
#endif
#include "keymap_in_eeprom.h"
#ifdef MOUSEKEY_ENABLE
# include "mousekey.h"
@ -82,6 +86,10 @@ void keyboard_init(void)
backlight_init();
#endif
#ifdef SOFTPWM_LED_ENABLE
softpwm_led_init();
#endif
#ifdef BREATHING_LED_ENABLE
breathing_led_init();
#endif

155
common/softpwm_led.c Normal file
View File

@ -0,0 +1,155 @@
#include <avr/io.h>
#include <avr/interrupt.h>
#include "led.h"
#include "softpwm_led.h"
#include "debug.h"
#define SOFTPWM_LED_FREQ 64
#define SOFTPWM_LED_TIMER_TOP F_CPU / (256 * SOFTPWM_LED_FREQ)
uint8_t softpwm_ocr = 0;
uint8_t softpwm_ocr_buff = 0;
void softpwm_led_init(void)
{
#ifdef SOFTPWM_LED_TIMER3
/* Timer3 setup */
/* CTC mode */
TCCR3B |= (1<<WGM32);
/* Clock selelct: clk/8 */
TCCR3B |= (1<<CS30);
/* Set TOP value */
uint8_t sreg = SREG;
cli();
OCR3AH = (SOFTPWM_LED_TIMER_TOP >> 8) & 0xff;
OCR3AL = SOFTPWM_LED_TIMER_TOP & 0xff;
SREG = sreg;
#else
/* Timer1 setup */
/* CTC mode */
TCCR1B |= (1<<WGM12);
/* Clock selelct: clk/8 */
TCCR1B |= (1<<CS10);
/* Set TOP value */
uint8_t sreg = SREG;
cli();
OCR1AH = (SOFTPWM_LED_TIMER_TOP >> 8) & 0xff;
OCR1AL = SOFTPWM_LED_TIMER_TOP & 0xff;
SREG = sreg;
#endif
}
void softpwm_led_enable(void)
{
/* Enable Compare Match Interrupt */
#ifdef SOFTPWM_LED_TIMER3
TIMSK3 |= (1<<OCIE3A);
dprintf("softpwm led on: %u\n", TIMSK3 & (1<<OCIE3A));
#else
TIMSK1 |= (1<<OCIE1A);
dprintf("softpwm led on: %u\n", TIMSK1 & (1<<OCIE1A));
#endif
}
void softpwm_led_disable(void)
{
/* Disable Compare Match Interrupt */
#ifdef SOFTPWM_LED_TIMER3
TIMSK3 &= ~(1<<OCIE3A);
dprintf("softpwm led off: %u\n", TIMSK3 & (1<<OCIE3A));
#else
TIMSK1 &= ~(1<<OCIE1A);
dprintf("softpwm led off: %u\n", TIMSK1 & (1<<OCIE1A));
#endif
}
void softpwm_led_toggle(void)
{
/* Disable Compare Match Interrupt */
#ifdef SOFTPWM_LED_TIMER3
TIMSK3 ^= (1<<OCIE3A);
dprintf("softpwm led toggle: %u\n", TIMSK3 & (1<<OCIE3A));
#else
TIMSK1 ^= (1<<OCIE1A);
dprintf("softpwm led toggle: %u\n", TIMSK1 & (1<<OCIE1A));
#endif
}
void softpwm_led_set(uint8_t val) {
softpwm_ocr_buff = val;
}
#ifdef BREATHING_LED_ENABLE
/* Breathing LED brighness(PWM On period) table
*
* http://www.wolframalpha.com/input/?i=Table%5Bfloor%28%28exp%28sin%28x%2F256*2*pi%2B3%2F2*pi%29%29-1%2Fe%29*%28256%2F%28e-1%2Fe%29%29%29%2C+%7Bx%2C0%2C255%2C1%7D%5D
* Table[floor((exp(sin(x/256*2*pi+3/2*pi))-1/e)*(256/(e-1/e))), {x,0,255,1}]
* (0..255).each {|x| print ((exp(sin(x/256.0*2*PI+3.0/2*PI))-1/E)*(256/(E-1/E))).to_i, ', ' }
*/
static const uint8_t breathing_table[256] PROGMEM = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 8, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 25, 26, 27, 29, 30, 32, 34, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 56, 58, 61, 63, 66, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98, 102, 105, 108, 112, 116, 119, 123, 126, 130, 134, 138, 142, 145, 149, 153, 157, 161, 165, 169, 173, 176, 180, 184, 188, 192, 195, 199, 203, 206, 210, 213, 216, 219, 223, 226, 228, 231, 234, 236, 239, 241, 243, 245, 247, 248, 250, 251, 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 254, 253, 252, 251, 250, 248, 247, 245, 243, 241, 239, 236, 234, 231, 228, 226, 223, 219, 216, 213, 210, 206, 203, 199, 195, 192, 188, 184, 180, 176, 173, 169, 165, 161, 157, 153, 149, 145, 142, 138, 134, 130, 126, 123, 119, 116, 112, 108, 105, 102, 98, 95, 92, 89, 86, 83, 80, 77, 74, 71, 68, 66, 63, 61, 58, 56, 53, 51, 49, 47, 45, 43, 41, 39, 37, 35, 34, 32, 30, 29, 27, 26, 25, 23, 22, 21, 19, 18, 17, 16, 15, 14, 13, 12, 11, 11, 10, 9, 8, 8, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
static uint8_t breathing_led_state = 0;
static uint8_t breathing_led_duration = 0;
void breathing_led_enable(void)
{
breathing_led_state = 1;
}
void breathing_led_disable(void)
{
breathing_led_state = 0;
}
void breathing_led_toggle(void)
{
breathing_led_state ^= 1;
}
void breathing_led_set_duration(uint8_t dur)
{
breathing_led_duration = dur;
dprintf("breathing led set duration: %u\n", breathing_led_duration);
}
#endif
#ifdef SOFTPWM_LED_TIMER3
ISR(TIMER3_COMPA_vect)
#else
ISR(TIMER1_COMPA_vect)
#endif
{
static uint8_t pwm = 0;
pwm++;
// LED on
if (pwm == 0) {
softpwm_led_on();
softpwm_ocr = softpwm_ocr_buff;
}
// LED off
if (pwm == softpwm_ocr) {
softpwm_led_off();
}
#ifdef BREATHING_LED_ENABLE
static uint8_t count = 0;
static uint8_t index = 0;
static uint8_t step = 0;
if (breathing_led_state) {
count++;
if (count > SOFTPWM_LED_FREQ) {
count = 0;
step++;
if (step > breathing_led_duration) {
step = 0;
softpwm_ocr_buff = pgm_read_byte(&breathing_table[index]);
index++;
}
}
}
#endif
}

40
common/softpwm_led.h Normal file
View File

@ -0,0 +1,40 @@
#ifndef SOFTPWM_LED_H
#define SOFTPWM_LED_H
#ifdef SOFTPWM_LED_ENABLE
void softpwm_led_init(void);
void softpwm_led_enable(void);
void softpwm_led_disable(void);
void softpwm_led_toggle(void);
void softpwm_led_set(uint8_t val);
void softpwm_led_on(void);
void softpwm_led_off(void);
#ifdef BREATHING_LED_ENABLE
#define breathing_led_init()
void breathing_led_enable(void);
void breathing_led_disable(void);
void breathing_led_toggle(void);
void breathing_led_set_duration(uint8_t dur);
#else
#define breathing_led_init()
#define breathing_led_enable()
#define breathing_led_disable()
#define breathing_led_toggle()
#define breathing_led_set_duration()
#endif
#else
#define softpwm_led_init()
#define softpwm_led_enable()
#define softpwm_led_disable()
#define softpwm_led_toggle()
#define softpwm_led_set()
#define softpwm_led_on()
#define softpwm_led_off()
#endif
#endif