int main(void)
{
WDTCTL = WDTPW | WDTHOLD;
P1DIR |= BIT0;
P1OUT &= ~BIT0;
// Test: initialize the CC1101 physical information structure. Once this is
// initialized, regular operation may begin.
CC1101SpiInit(&gPhyInfo, &gSpi, NULL);
CC1101GdoInit(&gPhyInfo, gGdo);
// Test: configure with default settings.
CC1101Configure(&gPhyInfo, &gCC1101Settings);
// Test: set the PA table to an initial power level.
CC1101WriteRegisters(&gPhyInfo, CC1101_PATABLE, gPaTable, 8);
// ---------------------------------------------------------------------------
/**
* Test polling transmit/receive operations on two different units. One unit
* is designated the receiver while the other is the transmitter. This method
* can be modified to use an interrupt-driven approach. Toggle an LED when
* done receiving and transmitting.
*/
#if defined(TEST_CC1101_RECEIVER)
Receiver();
#elif defined(TEST_CC1101_TRANSMITTER)
Transmitter();
#endif
return 0;
}
status_t
FDILink::Train(display_mode* target)
{
CALLED();
uint32 bitsPerPixel;
switch (target->space) {
case B_RGB32_LITTLE:
bitsPerPixel = 32;
break;
case B_RGB16_LITTLE:
bitsPerPixel = 16;
break;
case B_RGB15_LITTLE:
bitsPerPixel = 15;
break;
case B_CMAP8:
default:
bitsPerPixel = 8;
break;
}
// Khz / 10. ( each output octet encoded as 10 bits.
uint32 linkBandwidth = gInfo->shared_info->fdi_link_frequency * 1000 / 10;
uint32 bps = target->timing.pixel_clock * bitsPerPixel * 21 / 20;
uint32 lanes = bps / (linkBandwidth * 8);
TRACE("%s: FDI Link Lanes: %" B_PRIu32 "\n", __func__, lanes);
// Enable FDI clocks
Receiver().EnablePLL(lanes);
Receiver().SwitchClock(true);
Transmitter().EnablePLL(lanes);
status_t result = B_ERROR;
// TODO: Only _AutoTrain on IVYB Stepping B or later
// otherwise, _ManualTrain
if (gInfo->shared_info->device_type.Generation() >= 7)
result = _AutoTrain(lanes);
else if (gInfo->shared_info->device_type.Generation() == 6)
result = _SnbTrain(lanes);
else if (gInfo->shared_info->device_type.Generation() == 5)
result = _IlkTrain(lanes);
else
result = _NormalTrain(lanes);
if (result != B_OK) {
ERROR("%s: FDI training fault.\n", __func__);
}
return result;
}
status_t
FDILink::_NormalTrain(uint32 lanes)
{
CALLED();
uint32 txControl = Transmitter().Base() + PCH_FDI_TX_CONTROL;
uint32 rxControl = Receiver().Base() + PCH_FDI_RX_CONTROL;
// Enable normal link training
uint32 tmp = read32(txControl);
if (gInfo->shared_info->device_type.InGroup(INTEL_GROUP_IVB)) {
tmp &= ~FDI_LINK_TRAIN_NONE_IVB;
tmp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
} else {
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
}
write32(txControl, tmp);
tmp = read32(rxControl);
if (gInfo->shared_info->pch_info == INTEL_PCH_CPT) {
tmp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
tmp |= FDI_LINK_TRAIN_NORMAL_CPT;
} else {
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_NONE;
}
write32(rxControl, tmp | FDI_RX_ENHANCE_FRAME_ENABLE);
// Wait 1x idle pattern
read32(rxControl);
spin(1000);
// Enable ecc on IVB
if (gInfo->shared_info->device_type.InGroup(INTEL_GROUP_IVB)) {
write32(rxControl, read32(rxControl)
| FDI_FS_ERRC_ENABLE | FDI_FE_ERRC_ENABLE);
read32(rxControl);
}
return B_OK;
}
status_t
FDILink::_AutoTrain(uint32 lanes)
{
CALLED();
uint32 txControl = Transmitter().Base() + PCH_FDI_TX_CONTROL;
uint32 rxControl = Receiver().Base() + PCH_FDI_RX_CONTROL;
uint32 buffer = read32(txControl);
// Clear port width selection and set number of lanes
buffer &= ~(7 << 19);
buffer |= (lanes - 1) << 19;
if (gInfo->shared_info->device_type.InGroup(INTEL_GROUP_IVB))
buffer &= ~FDI_LINK_TRAIN_NONE_IVB;
else
buffer &= ~FDI_LINK_TRAIN_NONE;
write32(txControl, buffer);
bool trained = false;
for (uint32 i = 0; i < (sizeof(gSnbBFDITrainParam)
/ sizeof(gSnbBFDITrainParam[0])); i++) {
for (int j = 0; j < 2; j++) {
buffer = read32(txControl);
buffer |= FDI_AUTO_TRAINING;
buffer &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
buffer |= gSnbBFDITrainParam[i];
write32(txControl, buffer | FDI_TX_ENABLE);
write32(rxControl, read32(rxControl) | FDI_RX_ENABLE);
spin(5);
buffer = read32(txControl);
if ((buffer & FDI_AUTO_TRAIN_DONE) != 0) {
TRACE("%s: FDI auto train complete!\n", __func__);
trained = true;
break;
}
write32(txControl, read32(txControl) & ~FDI_TX_ENABLE);
write32(rxControl, read32(rxControl) & ~FDI_RX_ENABLE);
read32(rxControl);
spin(31);
}
// If Trained, we fall out of autotraining
if (trained)
break;
}
if (!trained) {
ERROR("%s: FDI auto train failed!\n", __func__);
return B_ERROR;
}
// Enable ecc on IVB
if (gInfo->shared_info->device_type.InGroup(INTEL_GROUP_IVB)) {
write32(rxControl, read32(rxControl)
| FDI_FS_ERRC_ENABLE | FDI_FE_ERRC_ENABLE);
read32(rxControl);
}
return B_OK;
}
status_t
FDILink::_SnbTrain(uint32 lanes)
{
CALLED();
uint32 txControl = Transmitter().Base() + PCH_FDI_TX_CONTROL;
uint32 rxControl = Receiver().Base() + PCH_FDI_RX_CONTROL;
// Train 1
uint32 imrControl = Receiver().Base() + PCH_FDI_RX_IMR;
uint32 tmp = read32(imrControl);
tmp &= ~FDI_RX_SYMBOL_LOCK;
tmp &= ~FDI_RX_BIT_LOCK;
write32(imrControl, tmp);
read32(imrControl);
spin(150);
tmp = read32(txControl);
tmp &= ~FDI_DP_PORT_WIDTH_MASK;
tmp |= FDI_DP_PORT_WIDTH(lanes);
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_1;
tmp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
tmp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
write32(txControl, tmp);
write32(Receiver().Base() + PCH_FDI_RX_MISC,
FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
tmp = read32(rxControl);
if (gInfo->shared_info->pch_info == INTEL_PCH_CPT) {
tmp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
tmp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
} else {
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_1;
}
write32(rxControl, rxControl);
Receiver().Enable();
uint32 iirControl = Receiver().Base() + PCH_FDI_RX_IIR;
TRACE("%s: FDI RX IIR Control @ 0x%" B_PRIx32 "\n", __func__, iirControl);
int i = 0;
for (i = 0; i < 4; i++) {
tmp = read32(txControl);
tmp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
tmp |= gSnbBFDITrainParam[i];
write32(txControl, tmp);
read32(txControl);
spin(500);
int retry = 0;
for (retry = 0; retry < 5; retry++) {
tmp = read32(iirControl);
TRACE("%s: FDI RX IIR 0x%" B_PRIx32 "\n", __func__, tmp);
if (tmp & FDI_RX_BIT_LOCK) {
TRACE("%s: FDI train 1 done\n", __func__);
write32(iirControl, tmp | FDI_RX_BIT_LOCK);
break;
}
spin(50);
}
if (retry < 5)
break;
}
if (i == 4) {
ERROR("%s: FDI train 1 failure!\n", __func__);
return B_ERROR;
}
// Train 2
tmp = read32(txControl);
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_2;
// if gen6? It's always gen6
tmp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
tmp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
write32(txControl, tmp);
tmp = read32(rxControl);
if (gInfo->shared_info->pch_info == INTEL_PCH_CPT) {
tmp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
tmp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
} else {
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_2;
}
write32(rxControl, tmp);
read32(rxControl);
spin(150);
for (i = 0; i < 4; i++) {
tmp = read32(txControl);
tmp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
tmp |= gSnbBFDITrainParam[i];
write32(txControl, tmp);
read32(txControl);
spin(500);
int retry = 0;
for (retry = 0; retry < 5; retry++) {
tmp = read32(iirControl);
TRACE("%s: FDI RX IIR 0x%" B_PRIx32 "\n", __func__, tmp);
if (tmp & FDI_RX_SYMBOL_LOCK) {
TRACE("%s: FDI train 2 done\n", __func__);
write32(iirControl, tmp | FDI_RX_SYMBOL_LOCK);
break;
}
spin(50);
}
if (retry < 5)
break;
}
if (i == 4) {
ERROR("%s: FDI train 1 failure!\n", __func__);
return B_ERROR;
}
return B_OK;
}
status_t
FDILink::_IlkTrain(uint32 lanes)
{
CALLED();
uint32 txControl = Transmitter().Base() + PCH_FDI_TX_CONTROL;
uint32 rxControl = Receiver().Base() + PCH_FDI_RX_CONTROL;
// Train 1: unmask FDI RX Interrupt symbol_lock and bit_lock
uint32 tmp = read32(Receiver().Base() + PCH_FDI_RX_IMR);
tmp &= ~FDI_RX_SYMBOL_LOCK;
tmp &= ~FDI_RX_BIT_LOCK;
write32(Receiver().Base() + PCH_FDI_RX_IMR, tmp);
spin(150);
// Enable CPU FDI TX and RX
tmp = read32(txControl);
tmp &= ~FDI_DP_PORT_WIDTH_MASK;
tmp |= FDI_DP_PORT_WIDTH(lanes);
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_1;
write32(txControl, tmp);
Transmitter().Enable();
tmp = read32(rxControl);
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_1;
write32(rxControl, tmp);
Receiver().Enable();
// ILK Workaround, enable clk after FDI enable
if (fPipeIndex == INTEL_PIPE_B) {
write32(PCH_FDI_RXB_CHICKEN, FDI_RX_PHASE_SYNC_POINTER_OVR);
write32(PCH_FDI_RXB_CHICKEN, FDI_RX_PHASE_SYNC_POINTER_OVR
| FDI_RX_PHASE_SYNC_POINTER_EN);
} else {
write32(PCH_FDI_RXA_CHICKEN, FDI_RX_PHASE_SYNC_POINTER_OVR);
write32(PCH_FDI_RXA_CHICKEN, FDI_RX_PHASE_SYNC_POINTER_OVR
| FDI_RX_PHASE_SYNC_POINTER_EN);
}
uint32 iirControl = Receiver().Base() + PCH_FDI_RX_IIR;
TRACE("%s: FDI RX IIR Control @ 0x%" B_PRIx32 "\n", __func__, iirControl);
int tries = 0;
for (tries = 0; tries < 5; tries++) {
tmp = read32(iirControl);
TRACE("%s: FDI RX IIR 0x%" B_PRIx32 "\n", __func__, tmp);
if ((tmp & FDI_RX_BIT_LOCK)) {
TRACE("%s: FDI train 1 done\n", __func__);
write32(iirControl, tmp | FDI_RX_BIT_LOCK);
break;
}
}
if (tries == 5) {
ERROR("%s: FDI train 1 failure!\n", __func__);
return B_ERROR;
}
// Train 2
tmp = read32(txControl);
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_2;
write32(txControl, tmp);
tmp = read32(rxControl);
tmp &= ~FDI_LINK_TRAIN_NONE;
tmp |= FDI_LINK_TRAIN_PATTERN_2;
write32(rxControl, tmp);
read32(rxControl);
spin(150);
for (tries = 0; tries < 5; tries++) {
tmp = read32(iirControl);
TRACE("%s: FDI RX IIR 0x%" B_PRIx32 "\n", __func__, tmp);
if (tmp & FDI_RX_SYMBOL_LOCK) {
TRACE("%s: FDI train 2 done\n", __func__);
write32(iirControl, tmp | FDI_RX_SYMBOL_LOCK);
break;
}
}
if (tries == 5) {
ERROR("%s: FDI train 2 failure!\n", __func__);
return B_ERROR;
}
return B_OK;
}
void main(void)
{
Init();
Transmitter();
}
//Transmitter Thread
void Transmitter_Thread(void)
{
std::cout<<"Started Transmitter"<<std::endl;
double output = 0;
Transmitter();
}