void TWITransmitData(void *const TXdata, uint8_t dataLen, uint8_t repStart, uint8_t blocking)
{
// Wait until ready
while (!isTWIReady()) {_delay_us(1);}
// Reset the I2C stuff
TWCR = (1 << TWINT)|(1 << TWSTO);
TWIInit();
// Set repeated start mode
TWIInfo.repStart = repStart;
// Copy transmit info to global variables
TWITransmitBuffer = (uint8_t *)TXdata;
TXBuffLen = dataLen;
TXBuffIndex = 0;
// If a repeated start has been sent, then devices are already listening for an address
// and another start does not need to be sent.
if (TWIInfo.mode == RepeatedStartSent)
{
TWIInfo.mode = Initializing;
TWDR = TWITransmitBuffer[TXBuffIndex++]; // Load data to transmit buffer
TWISendTransmit(); // Send the data
}
else // Otherwise, just send the normal start signal to begin transmission.
{
TWIInfo.mode = Initializing;
TWISendStart();
}
if(blocking){
// Wait until ready
while (!isTWIReady()){_delay_us(1);}
}
}
void matrix_scan_kb(void)
{
#ifdef WATCHDOG_ENABLE
wdt_reset();
#endif
#ifdef ISSI_ENABLE
// switch/underglow lighting update
static uint32_t issi_device = 0;
static uint32_t twi_last_ready = 0;
if(twi_last_ready > 1000){
// Its been way too long since the last ISSI update, reset the I2C bus and start again
xprintf("TWI failed to recover, TWI re-init\n");
twi_last_ready = 0;
TWIInit();
force_issi_refresh();
}
if(isTWIReady()){
twi_last_ready = 0;
// If the i2c bus is available, kick off the issi update, alternate between devices
update_issi(issi_device, issi_device);
if(issi_device){
issi_device = 0;
}else{
issi_device = 3;
}
}else{
twi_last_ready++;
}
#endif
matrix_scan_user();
}
void matrix_scan_kb(void)
{
#ifdef WATCHDOG_ENABLE
wdt_reset();
#endif
#ifdef ISSI_ENABLE
// switch/underglow lighting update
static uint32_t issi_device = 0;
static uint32_t twi_last_ready = 0;
if(twi_last_ready > 1000){
// Its been way too long since the last ISSI update, reset the I2C bus and start again
dprintf("TWI failed to recover, TWI re-init\n");
twi_last_ready = 0;
TWIInit();
force_issi_refresh();
}
if(isTWIReady()){
twi_last_ready = 0;
// If the i2c bus is available, kick off the issi update, alternate between devices
update_issi(issi_device, issi_device);
if(issi_device){
issi_device = 0;
}else{
issi_device = 3;
}
}else{
twi_last_ready++;
}
#endif
// Update layer indicator LED
//
// Not sure how else to reliably do this... TMK has the 'hook_layer_change'
// but can't find QMK equiv
static uint32_t layer_indicator = -1;
if(layer_indicator != layer_state){
for(uint32_t i=0;; i++){
// the layer_info list should end with layer 0xFFFFFFFF
// it will break this out of the loop and define the unknown layer color
if((layer_info[i].layer == (layer_state & layer_info[i].mask)) || (layer_info[i].layer == 0xFFFFFFFF)){
OCR1A = layer_info[i].color.red;
OCR1B = layer_info[i].color.green;
OCR1C = layer_info[i].color.blue;
layer_indicator = layer_state;
break;
}
}
}
matrix_scan_user();
}
uint8_t TWITransmitData(void *const TXdata, uint8_t dataLen, uint8_t repStart)
{
if (dataLen <= TXMAXBUFLEN)
{
// Wait until ready
while (!isTWIReady()) {_delay_us(1);}
// Set repeated start mode
TWIInfo.repStart = repStart;
// Copy data into the transmit buffer
uint8_t *data = (uint8_t *)TXdata;
for (int i = 0; i < dataLen; i++)
{
TWITransmitBuffer[i] = data[i];
}
// Copy transmit info to global variables
TXBuffLen = dataLen;
TXBuffIndex = 0;
// If a repeated start has been sent, then devices are already listening for an address
// and another start does not need to be sent.
if (TWIInfo.mode == RepeatedStartSent)
{
TWIInfo.mode = Initializing;
TWDR = TWITransmitBuffer[TXBuffIndex++]; // Load data to transmit buffer
TWISendTransmit(); // Send the data
}
else // Otherwise, just send the normal start signal to begin transmission.
{
TWIInfo.mode = Initializing;
TWISendStart();
}
}
else
{
return 1; // return an error if data length is longer than buffer
}
return 0;
}