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Address up to 256 LED per channel #2

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Address up to 256 LED per channel #2

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19500e3
Added mode for 128 LED.
areid-van Sep 2, 2017
507b75d
Added a 12 bit color mode
areid-van Sep 2, 2017
8acffb0
Fixed a couple of bugs with report 10
areid-van Sep 7, 2017
ef36623
Merge branch 'pro-xl' into pro
areid-van Sep 7, 2017
8cc7853
Added feature to repeat a pattern
areid-van Sep 9, 2017
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65 changes: 53 additions & 12 deletions light_ws2812.c
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Original file line number Diff line number Diff line change
Expand Up @@ -92,19 +92,9 @@ void ws2812_sendarray(uint8_t *data,uint16_t datlen)
#define w_nop8 w_nop4 w_nop4
#define w_nop16 w_nop8 w_nop8

void inline ws2812_sendarray_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
{
uint8_t curbyte,ctr,masklo;
uint8_t sreg_prev;

masklo =~maskhi&ws2812_PORTREG;
maskhi |= ws2812_PORTREG;
sreg_prev=SREG;
cli();
inline void send_byte(uint8_t curbyte, uint8_t maskhi, uint8_t masklo){
uint8_t ctr;

while (datlen--) {
curbyte=*data++;

asm volatile(
" ldi %0,8 \n\t"
"loop%=: \n\t"
Expand Down Expand Up @@ -164,6 +154,57 @@ w_nop16
: "=&d" (ctr)
: "r" (curbyte), "I" (_SFR_IO_ADDR(ws2812_PORTREG)), "r" (maskhi), "r" (masklo)
);
}

void inline ws2812_sendarray_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
{
uint8_t curbyte, masklo;
uint8_t sreg_prev;

masklo =~maskhi&ws2812_PORTREG;
maskhi |= ws2812_PORTREG;
sreg_prev=SREG;
cli();

while (datlen--) {
curbyte=*data++;
send_byte(curbyte, maskhi, masklo);
}

SREG=sreg_prev;
}

void inline ws2812_sendarraylow_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
{
uint8_t curbyte, masklo;
uint8_t sreg_prev;

masklo =~maskhi&ws2812_PORTREG;
maskhi |= ws2812_PORTREG;
sreg_prev=SREG;
cli();

while (datlen--) {
curbyte=*data++;
send_byte(curbyte<<4, maskhi, masklo);
}

SREG=sreg_prev;
}

void inline ws2812_sendarrayhigh_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
{
uint8_t curbyte, masklo;
uint8_t sreg_prev;

masklo =~maskhi&ws2812_PORTREG;
maskhi |= ws2812_PORTREG;
sreg_prev=SREG;
cli();

while (datlen--) {
curbyte=*data++;
send_byte(curbyte&240, maskhi, masklo);
}

SREG=sreg_prev;
Expand Down
2 changes: 2 additions & 0 deletions light_ws2812.h
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,8 @@ void ws2812_setleds_pin(struct cRGB *ledarray, uint16_t number_of_leds,uint8_t p

void ws2812_sendarray (uint8_t *array,uint16_t length);
void ws2812_sendarray_mask(uint8_t *array,uint16_t length, uint8_t pinmask);
void ws2812_sendarraylow_mask(uint8_t *array,uint16_t length, uint8_t pinmask);
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A couple variants of the sendarray function to send low and high 4 bits

void ws2812_sendarrayhigh_mask(uint8_t *array,uint16_t length, uint8_t pinmask);


/*
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