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@ -78,13 +78,13 @@ HAL_StatusTypeDef Upstream_GetFreePacket(FreePacketCallbackTypeDef callback)
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if ((UpstreamInterfaceState < UPSTREAM_INTERFACE_IDLE) ||
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(UpstreamInterfaceState > UPSTREAM_INTERFACE_RX_PACKET))
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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//Do we already have a queued callback?
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if (PendingFreePacketCallback != NULL)
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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//Check if there is a free buffer now
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@ -113,7 +113,7 @@ UpstreamPacketTypeDef* Upstream_GetFreePacketImmediately(void)
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if ((UpstreamInterfaceState < UPSTREAM_INTERFACE_IDLE) ||
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(UpstreamInterfaceState > UPSTREAM_INTERFACE_RX_PACKET))
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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//We are expecting a free buffer now
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@ -129,7 +129,7 @@ UpstreamPacketTypeDef* Upstream_GetFreePacketImmediately(void)
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}
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//Should not happen:
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_NO_RETURN;
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}
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@ -141,7 +141,7 @@ void Upstream_ReleasePacket(UpstreamPacketTypeDef* packetToRelease)
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if ((packetToRelease != &UpstreamPacket0) &&
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(packetToRelease != &UpstreamPacket1))
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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if (PendingFreePacketCallback != NULL)
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@ -160,19 +160,23 @@ void Upstream_ReleasePacket(UpstreamPacketTypeDef* packetToRelease)
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//Used by USB interface classes only.
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//OK to call when still transmitting another packet.
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//Not OK to call when receiving or waiting for downstream reply.
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HAL_StatusTypeDef Upstream_SendPacket(UpstreamPacketTypeDef* packetToWrite)
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HAL_StatusTypeDef Upstream_TransmitPacket(UpstreamPacketTypeDef* packetToWrite)
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{
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//Sanity checks
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if ((packetToWrite != &UpstreamPacket0) &&
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(packetToWrite != &UpstreamPacket1))
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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if ((packetToWrite->Busy != BUSY) ||
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(packetToWrite->Length < UPSTREAM_PACKET_LEN_MIN) ||
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(packetToWrite->Length > UPSTREAM_PACKET_LEN))
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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if (NextTxPacket != NULL)
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{
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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switch (UpstreamInterfaceState)
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@ -181,10 +185,6 @@ HAL_StatusTypeDef Upstream_SendPacket(UpstreamPacketTypeDef* packetToWrite)
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case UPSTREAM_INTERFACE_TX_SIZE:
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case UPSTREAM_INTERFACE_TX_PACKET_WAIT:
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case UPSTREAM_INTERFACE_TX_PACKET:
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if (NextTxPacket != NULL)
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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}
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NextTxPacket = packetToWrite;
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break;
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@ -193,21 +193,17 @@ HAL_StatusTypeDef Upstream_SendPacket(UpstreamPacketTypeDef* packetToWrite)
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case UPSTREAM_INTERFACE_RX_PACKET_WAIT:
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case UPSTREAM_INTERFACE_RX_PACKET:
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//We can't let the size/packet sequence get out of sync.
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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case UPSTREAM_INTERFACE_IDLE:
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UpstreamInterfaceState = UPSTREAM_INTERFACE_TX_SIZE_WAIT;
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CurrentWorkingPacket = packetToWrite;
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SentCommandClass = CurrentWorkingPacket->CommandClass;
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SentCommand = CurrentWorkingPacket->Command;
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if (DOWNSTREAM_TX_OK_ACTIVE)
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{
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Upstream_TxOkInterrupt(); //Manually trigger edge interrupt processing if the line was already asserted
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}
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break;
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default:
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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return HAL_OK;
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}
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@ -223,16 +219,12 @@ void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
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if ((UpstreamInterfaceState != UPSTREAM_INTERFACE_TX_SIZE) &&
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(UpstreamInterfaceState != UPSTREAM_INTERFACE_TX_PACKET))
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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if (UpstreamInterfaceState == UPSTREAM_INTERFACE_TX_SIZE)
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{
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UpstreamInterfaceState = UPSTREAM_INTERFACE_TX_PACKET_WAIT;
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if (DOWNSTREAM_TX_OK_ACTIVE)
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{
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Upstream_TxOkInterrupt();
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}
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return;
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}
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@ -240,7 +232,7 @@ void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
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{
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if ((PendingFreePacketCallback != NULL) && (NextTxPacket == NULL))
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{
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//SPI_INTERFACE_FREAKOUT_VOID; ///////////////////////////////////////!
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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Upstream_ReleasePacket(CurrentWorkingPacket);
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@ -251,10 +243,6 @@ void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
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UpstreamInterfaceState = UPSTREAM_INTERFACE_TX_SIZE_WAIT;
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CurrentWorkingPacket = NextTxPacket;
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NextTxPacket = NULL;
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if (DOWNSTREAM_TX_OK_ACTIVE)
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{
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Upstream_TxOkInterrupt();
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}
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return;
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}
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@ -270,11 +258,11 @@ void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
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//Used by USB interface classes.
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//Ok to call when idle or transmitting.
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//Not OK to call when receiving or waiting for downstream reply.
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HAL_StatusTypeDef Upstream_GetPacket(SpiPacketReceivedCallbackTypeDef callback)
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HAL_StatusTypeDef Upstream_ReceivePacket(SpiPacketReceivedCallbackTypeDef callback)
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{
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if (ReceivePacketCallback != NULL)
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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ReceivePacketCallback = callback;
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@ -288,28 +276,19 @@ HAL_StatusTypeDef Upstream_CheckBeginPacketReception(void)
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if ((UpstreamInterfaceState < UPSTREAM_INTERFACE_IDLE) ||
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(UpstreamInterfaceState > UPSTREAM_INTERFACE_RX_SIZE_WAIT))
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{
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SPI_INTERFACE_FREAKOUT_HAL_ERROR;
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SPI_INTERFACE_FREAKOUT_RETURN_HAL_ERROR;
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}
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if (UpstreamInterfaceState == UPSTREAM_INTERFACE_IDLE)
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{
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UpstreamInterfaceState = UPSTREAM_INTERFACE_RX_SIZE_WAIT;
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}
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if (UpstreamInterfaceState == UPSTREAM_INTERFACE_RX_SIZE_WAIT)
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{
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if (DOWNSTREAM_TX_OK_ACTIVE)
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{
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//UpstreamTxOkInterrupt();
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Upstream_GetFreePacket(Upstream_BeginPacketReception); //Take a shortcut here :)
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}
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}
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return HAL_OK;
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}
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//This is called by EXTI3 falling edge interrupt,
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//indicating that downstream is ready for next transaction.
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//indicating that downstream is ready for the next transaction.
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void Upstream_TxOkInterrupt(void)
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{
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switch (UpstreamInterfaceState)
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@ -321,7 +300,7 @@ void Upstream_TxOkInterrupt(void)
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(uint8_t*)&CurrentWorkingPacket->Length,
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2) != HAL_OK)
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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break;
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@ -332,7 +311,7 @@ void Upstream_TxOkInterrupt(void)
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&CurrentWorkingPacket->CommandClass,
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CurrentWorkingPacket->Length)) != HAL_OK)
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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break;
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@ -347,12 +326,12 @@ void Upstream_TxOkInterrupt(void)
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&CurrentWorkingPacket->CommandClass,
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(CurrentWorkingPacket->Length + 1))) != HAL_OK) //"When the CRC feature is enabled the pData Length must be Size + 1"
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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break;
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default:
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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}
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@ -363,7 +342,7 @@ void Upstream_BeginPacketReception(UpstreamPacketTypeDef* freePacket)
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{
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if (UpstreamInterfaceState != UPSTREAM_INTERFACE_RX_SIZE_WAIT)
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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UpstreamInterfaceState = UPSTREAM_INTERFACE_RX_SIZE;
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CurrentWorkingPacket = freePacket;
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@ -373,12 +352,12 @@ void Upstream_BeginPacketReception(UpstreamPacketTypeDef* freePacket)
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(uint8_t*)&CurrentWorkingPacket->Length,
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(2 + 1)) != HAL_OK) //"When the CRC feature is enabled the pData Length must be Size + 1"
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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}
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//Called at the end of the SPI TX DMA transfer,
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//Called at the end of the SPI RX DMA transfer,
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//at DMA2 interrupt priority. Assume *hspi points to our hspi1.
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void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
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{
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@ -389,7 +368,7 @@ void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
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if ((UpstreamInterfaceState != UPSTREAM_INTERFACE_RX_SIZE) &&
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(UpstreamInterfaceState != UPSTREAM_INTERFACE_RX_PACKET))
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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if (UpstreamInterfaceState == UPSTREAM_INTERFACE_RX_SIZE)
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@ -397,13 +376,9 @@ void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
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if ((CurrentWorkingPacket->Length < UPSTREAM_PACKET_LEN_MIN) ||
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(CurrentWorkingPacket->Length > UPSTREAM_PACKET_LEN))
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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UpstreamInterfaceState = UPSTREAM_INTERFACE_RX_PACKET_WAIT;
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if (DOWNSTREAM_TX_OK_ACTIVE)
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{
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Upstream_TxOkInterrupt();
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}
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return;
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}
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@ -413,11 +388,11 @@ void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
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if ((SentCommandClass != (CurrentWorkingPacket->CommandClass & COMMAND_CLASS_MASK)) ||
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(SentCommand != CurrentWorkingPacket->Command))
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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if (ReceivePacketCallback == NULL)
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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//USB interface may want to receive another packet immediately,
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//so clear ReceivePacketCallback before the call.
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@ -432,5 +407,5 @@ void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
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//Something bad happened! Possibly CRC error...
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void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi)
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{
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SPI_INTERFACE_FREAKOUT_VOID;
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SPI_INTERFACE_FREAKOUT_RETURN_VOID;
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}
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Robert Fisk
10 years ago