diff options
Diffstat (limited to 'drivers/avr')
| -rw-r--r-- | drivers/avr/ws2812.c | 35 | ||||
| -rw-r--r-- | drivers/avr/ws2812.h | 4 |
2 files changed, 17 insertions, 22 deletions
diff --git a/drivers/avr/ws2812.c b/drivers/avr/ws2812.c index 82d985c20..5c3d72dcb 100644 --- a/drivers/avr/ws2812.c +++ b/drivers/avr/ws2812.c @@ -20,12 +20,13 @@ * 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 "ws2812.h" #include <avr/interrupt.h> #include <avr/io.h> #include <util/delay.h> +#define pinmask(pin) (_BV((pin)&0xF)) + /* * Forward declare internal functions * @@ -33,20 +34,21 @@ * The length is the number of bytes to send - three per LED. */ -void ws2812_sendarray(uint8_t *array, uint16_t length); -void ws2812_sendarray_mask(uint8_t *array, uint16_t length, uint8_t pinmask); +static inline void ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t masklo, uint8_t maskhi); // Setleds for standard RGB -void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) { - // ws2812_setleds_pin(ledarray,leds, _BV(ws2812_pin)); - ws2812_setleds_pin(ledarray, leds, _BV(RGB_DI_PIN & 0xF)); +void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds) { + // wrap up usage of RGB_DI_PIN + ws2812_setleds_pin(ledarray, number_of_leds, RGB_DI_PIN); } -void inline ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask) { - // new universal format (DDR) - _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask; +void ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t number_of_leds, uint8_t pin) { + DDRx_ADDRESS(RGB_DI_PIN) |= pinmask(pin); - ws2812_sendarray_mask((uint8_t *)ledarray, leds * sizeof(LED_TYPE), pinmask); + uint8_t masklo = ~(pinmask(pin)) & PORTx_ADDRESS(pin); + uint8_t maskhi = pinmask(pin) | PORTx_ADDRESS(pin); + + ws2812_sendarray_mask((uint8_t *)ledarray, number_of_leds * sizeof(LED_TYPE), masklo, maskhi); #ifdef RGBW _delay_us(80); @@ -55,8 +57,6 @@ void inline ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmas #endif } -void ws2812_sendarray(uint8_t *data, uint16_t datlen) { ws2812_sendarray_mask(data, datlen, _BV(RGB_DI_PIN & 0xF)); } - /* This routine writes an array of bytes with RGB values to the Dataout pin using the fast 800kHz clockless WS2811/2812 protocol. @@ -118,14 +118,9 @@ void ws2812_sendarray(uint8_t *data, uint16_t datlen) { ws2812_sendarray_mask(da #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; +static inline void ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t masklo, uint8_t maskhi) { + uint8_t curbyte, ctr, sreg_prev; - // masklo =~maskhi&ws2812_PORTREG; - // maskhi |= ws2812_PORTREG; - masklo = ~maskhi & _SFR_IO8((RGB_DI_PIN >> 4) + 2); - maskhi |= _SFR_IO8((RGB_DI_PIN >> 4) + 2); sreg_prev = SREG; cli(); @@ -188,7 +183,7 @@ void inline ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t maskhi " dec %0 \n\t" // '1' [+2] '0' [+2] " brne loop%=\n\t" // '1' [+3] '0' [+4] : "=&d"(ctr) - : "r"(curbyte), "I"(_SFR_IO_ADDR(_SFR_IO8((RGB_DI_PIN >> 4) + 2))), "r"(maskhi), "r"(masklo)); + : "r"(curbyte), "I"(_SFR_IO_ADDR(PORTx_ADDRESS(RGB_DI_PIN))), "r"(maskhi), "r"(masklo)); } SREG = sreg_prev; diff --git a/drivers/avr/ws2812.h b/drivers/avr/ws2812.h index b869fb28c..88eb08189 100644 --- a/drivers/avr/ws2812.h +++ b/drivers/avr/ws2812.h @@ -29,7 +29,7 @@ * Input: * ledarray: An array of GRB data describing the LED colors * number_of_leds: The number of LEDs to write - * pinmask (optional): Bitmask describing the output bin. e.g. _BV(PB0) + * pin (optional): A pin_t definition for the line to drive * * The functions will perform the following actions: * - Set the data-out pin as output @@ -37,4 +37,4 @@ * - Wait 50us to reset the LEDs */ void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds); -void ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t number_of_leds, uint8_t pinmask); +void ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t number_of_leds, uint8_t pin); |