diff options
Diffstat (limited to 'led.c')
| -rw-r--r-- | led.c | 20 |
1 files changed, 10 insertions, 10 deletions
@@ -3,7 +3,7 @@ #include <avr/io.h> -void signal_bit_0() { +static void signal_bit_0() { asm volatile ( "sbi %0, %1\n\t" "cbi %0, %1\n\t" @@ -11,11 +11,11 @@ void signal_bit_0() { "rjmp .+0\n\t" "rjmp .+0\n\t" : - : "I" (_SFR_IO_ADDR(PORTB)), "I" (PIN_LED) + : "I" (_SFR_IO_ADDR(PORTB)), "I" (LED_PIN) ); } -void signal_bit_1() { +static void signal_bit_1() { asm volatile ( "sbi %0, %1\n\t" "rjmp .+0\n\t" @@ -24,11 +24,11 @@ void signal_bit_1() { "rjmp .+0\n\t" "nop\n\t" : - : "I" (_SFR_IO_ADDR(PORTB)), "I" (PIN_LED) + : "I" (_SFR_IO_ADDR(PORTB)), "I" (LED_PIN) ); } -void signal_byte(unsigned char byte) { +static void signal_byte(unsigned char byte) { for (unsigned char mask = 0x80; mask != 0; mask >>= 1) { if (byte & mask) signal_bit_1(); @@ -37,20 +37,20 @@ void signal_byte(unsigned char byte) { } } -void signal_led(struct colour *c) { +static void signal_led(struct colour *c) { signal_byte(c->r); signal_byte(c->g); signal_byte(c->b); } -void signal_led_sequence(int num_leds, struct colour *seq, int num_seq, int width, int start) { +void led_signal_sequence(int num_leds, struct colour *seq, int num_seq, int col_width, int seq_start) { for(int i = 0; i < num_leds; ++i) { - int j, p = i - start; + int j, p = i - seq_start; if (p >= 0) - j = (p / width % num_seq); + j = (p / col_width % num_seq); else - j = (num_seq - ((p + 1) / -width % num_seq) - 1); + j = (num_seq - ((p + 1) / -col_width % num_seq) - 1); signal_led(&seq[j]); } |