drashna/qmk_firmware
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working with power limit

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This commit is contained in:
Jack Humbert 2016-10-16 16:03:33 -04:00
parent b8679bbe04
commit 5f91fb4136
8 changed files with 163 additions and 4 deletions
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137
quantum/light_ws2812.c
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@ -16,6 +16,122 @@
#include <util/delay.h>
#include "debug.h"
#define RGBW_BB_TWI 1
#ifdef RGBW_BB_TWI
// Port for the I2C
#define I2C_DDR DDRD
#define I2C_PIN PIND
#define I2C_PORT PORTD
// Pins to be used in the bit banging
#define I2C_CLK 0
#define I2C_DAT 1
#define I2C_DATA_HI()\
I2C_DDR &= ~ (1 << I2C_DAT);\
I2C_PORT |= (1 << I2C_DAT);
#define I2C_DATA_LO()\
I2C_DDR |= (1 << I2C_DAT);\
I2C_PORT &= ~ (1 << I2C_DAT);
#define I2C_CLOCK_HI()\
I2C_DDR &= ~ (1 << I2C_CLK);\
I2C_PORT |= (1 << I2C_CLK);
#define I2C_CLOCK_LO()\
I2C_DDR |= (1 << I2C_CLK);\
I2C_PORT &= ~ (1 << I2C_CLK);
#define I2C_DELAY 1
void I2C_WriteBit(unsigned char c)
{
if (c > 0)
{
I2C_DATA_HI();
}
else
{
I2C_DATA_LO();
}
I2C_CLOCK_HI();
_delay_us(I2C_DELAY);
I2C_CLOCK_LO();
_delay_us(I2C_DELAY);
if (c > 0)
{
I2C_DATA_LO();
}
_delay_us(I2C_DELAY);
}
// Inits bitbanging port, must be called before using the functions below
//
void I2C_Init()
{
I2C_PORT &= ~ ((1 << I2C_DAT) | (1 << I2C_CLK));
I2C_CLOCK_HI();
I2C_DATA_HI();
_delay_us(I2C_DELAY);
}
// Send a START Condition
//
void I2C_Start()
{
// set both to high at the same time
I2C_DDR &= ~ ((1 << I2C_DAT) | (1 << I2C_CLK));
_delay_us(I2C_DELAY);
I2C_DATA_LO();
_delay_us(I2C_DELAY);
I2C_CLOCK_LO();
_delay_us(I2C_DELAY);
}
// Send a STOP Condition
//
void I2C_Stop()
{
I2C_CLOCK_HI();
_delay_us(I2C_DELAY);
I2C_DATA_HI();
_delay_us(I2C_DELAY);
}
// write a byte to the I2C slave device
//
unsigned char I2C_Write(unsigned char c)
{
for (char i = 0; i < 8; i++)
{
I2C_WriteBit(c & 128);
c <<= 1;
}
I2C_WriteBit(0);
_delay_us(I2C_DELAY);
_delay_us(I2C_DELAY);
// _delay_us(I2C_DELAY);
//return I2C_ReadBit();
return 0;
}
#endif
// Setleds for standard RGB
void inline ws2812_setleds(struct cRGB *ledarray, uint16_t leds)
{
@ -41,6 +157,25 @@ void inline ws2812_setleds_rgbw(struct cRGBW *ledarray, uint16_t leds)
_SFR_IO8((RGB_DI_PIN >> 4) + 1) |= _BV(RGB_DI_PIN & 0xF);
ws2812_sendarray_mask((uint8_t*)ledarray,leds<<2,_BV(RGB_DI_PIN & 0xF));
#ifdef RGBW_BB_TWI
cli();
TWCR = 0;
I2C_Init();
I2C_Start();
I2C_Write(0x84);
uint16_t datlen = leds<<2;
uint8_t curbyte;
uint8_t * data = (uint8_t*)ledarray;
while (datlen--) {
curbyte=*data++;
I2C_Write(curbyte % 0x10);
}
I2C_Stop();
sei();
#endif
_delay_us(80);
}
@ -123,7 +258,7 @@ void inline ws2812_sendarray_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
cli();
while (datlen--) {
curbyte=*data++;
curbyte=(*data++) % 0x10;
asm volatile(
" ldi %0,8 \n\t"