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254 lines
8.7 KiB
254 lines
8.7 KiB
/*
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* upstream_msc_mock.c
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*
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* Created on: 17/07/2015
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* Author: Robert Fisk
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*
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* This file replaces upstream_msc.c to allow operational testing of Upstream,
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* without Downstream in place and communicating over SPI.
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* It still attempts to write downstream packets out the SPI port.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include <upstream_interface_def.h>
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#include <upstream_msc.h>
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#include <upstream_spi.h>
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#include "stm32f4xx_hal.h"
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//Stuff we need to save for our callbacks to use:
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UpstreamMSCCallbackTypeDef TestReadyCallback;
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UpstreamMSCCallbackUintPacketTypeDef GetCapacityCallback;
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UpstreamMSCCallbackPacketTypeDef GetStreamDataCallback;
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uint32_t ByteCount;
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UpstreamPacketTypeDef* ReadStreamPacket;
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uint8_t ReadStreamBusy;
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static void Upstream_MSC_TestReadyReplyCallback(UpstreamPacketTypeDef* replyPacket);
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static void Upstream_MSC_GetCapacityReplyCallback(UpstreamPacketTypeDef* replyPacket);
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static void Upstream_MSC_GetStreamDataPacketCallback(UpstreamPacketTypeDef* replyPacket);
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static void Upstream_MSC_BeginWriteReplyCallback(UpstreamPacketTypeDef* replyPacket);
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HAL_StatusTypeDef Upstream_MSC_TestReady(UpstreamMSCCallbackTypeDef callback)
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{
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UpstreamPacketTypeDef* freePacket;
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HAL_StatusTypeDef tempResult;
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TestReadyCallback = callback;
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freePacket = Upstream_GetFreePacketImmediately();
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freePacket->Length = UPSTREAM_PACKET_HEADER_LEN;
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freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
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freePacket->Command = COMMAND_MSC_TEST_UNIT_READY;
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tempResult = Upstream_TransmitPacket(freePacket);
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if (tempResult != HAL_OK)
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{
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return tempResult;
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}
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//return Upstream_GetPacket(Upstream_MSC_TestReadyReplyCallback);
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return Upstream_GetFreePacket(Upstream_MSC_TestReadyReplyCallback);
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}
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void Upstream_MSC_TestReadyReplyCallback(UpstreamPacketTypeDef* replyPacket)
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{
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// if ((replyPacket->Length != (UPSTREAM_PACKET_HEADER_LEN + 1)) ||
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// (replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG) ||
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// (replyPacket->Data[0] != HAL_OK))
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// {
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// Upstream_ReleasePacket(replyPacket);
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// TestReadyCallback(HAL_ERROR);
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// return;
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// }
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Upstream_ReleasePacket(replyPacket);
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TestReadyCallback(HAL_OK);
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}
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HAL_StatusTypeDef Upstream_MSC_GetCapacity(UpstreamMSCCallbackUintPacketTypeDef callback)
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{
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UpstreamPacketTypeDef* freePacket;
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HAL_StatusTypeDef tempResult;
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GetCapacityCallback = callback;
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freePacket = Upstream_GetFreePacketImmediately();
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freePacket->Length = UPSTREAM_PACKET_HEADER_LEN;
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freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
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freePacket->Command = COMMAND_MSC_GET_CAPACITY;
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tempResult = Upstream_TransmitPacket(freePacket);
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if (tempResult != HAL_OK)
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{
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return tempResult;
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}
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//return Upstream_GetPacket(Upstream_MSC_GetCapacityReplyCallback);
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return Upstream_GetFreePacket(Upstream_MSC_GetCapacityReplyCallback);
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}
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void Upstream_MSC_GetCapacityReplyCallback(UpstreamPacketTypeDef* replyPacket)
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{
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uint32_t uint[2];
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// if ((replyPacket->Length != (UPSTREAM_PACKET_HEADER_LEN + 8) ||
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// (replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG)))
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// {
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// GetCapacityCallback(HAL_ERROR, NULL, NULL);
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// }
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*(uint32_t*)&(replyPacket->Data[0]) = 262144; //* 512B = 128MB
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*(uint32_t*)&(replyPacket->Data[4]) = 512;
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uint[0] = *(uint32_t*)&(replyPacket->Data[0]);
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uint[1] = *(uint32_t*)&(replyPacket->Data[4]);
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GetCapacityCallback(HAL_OK, uint, replyPacket); //usb_msc_scsi will use this packet, so don't release now
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}
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HAL_StatusTypeDef Upstream_MSC_BeginRead(UpstreamMSCCallbackTypeDef callback,
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uint64_t readBlockStart,
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uint32_t readBlockCount,
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uint32_t readByteCount)
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{
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UpstreamPacketTypeDef* freePacket;
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HAL_StatusTypeDef tempResult;
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ReadStreamPacket = NULL; //Prepare for GetStreamDataPacket's use
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ReadStreamBusy = 0;
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TestReadyCallback = callback;
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ByteCount = readByteCount;
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freePacket = Upstream_GetFreePacketImmediately();
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freePacket->Length = UPSTREAM_PACKET_HEADER_LEN + (4 * 3);
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freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
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freePacket->Command = COMMAND_MSC_BEGIN_READ;
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*(uint64_t*)&(freePacket->Data[0]) = readBlockStart;
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*(uint32_t*)&(freePacket->Data[8]) = readBlockCount;
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tempResult = Upstream_TransmitPacket(freePacket);
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if (tempResult != HAL_OK)
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{
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TestReadyCallback(tempResult);
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}
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//return Upstream_GetPacket(Upstream_MSC_TestReadyReplyCallback); //Re-use TestReadyReplyCallback because it does exactly what we want!
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return Upstream_GetFreePacket(Upstream_MSC_TestReadyReplyCallback);
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}
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HAL_StatusTypeDef Upstream_MSC_GetStreamDataPacket(UpstreamMSCCallbackPacketTypeDef callback)
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{
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GetStreamDataCallback = callback;
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if (ReadStreamBusy != 0)
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{
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return HAL_OK;
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}
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ReadStreamBusy = 1;
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if (ReadStreamPacket && GetStreamDataCallback) //Do we have a stored packet and an address to send it?
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{
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Upstream_MSC_GetStreamDataPacketCallback(ReadStreamPacket); //Send it now!
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ReadStreamPacket = NULL;
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return HAL_OK; //Our callback will call us again, so we don't need to get a packet in this case.
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}
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//return Upstream_GetPacket(Upstream_MSC_GetStreamDataPacketCallback);
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return Upstream_GetFreePacket(Upstream_MSC_GetStreamDataPacketCallback);
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}
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void Upstream_MSC_GetStreamDataPacketCallback(UpstreamPacketTypeDef* replyPacket)
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{
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uint16_t dataLength;
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ReadStreamBusy = 0;
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if (GetStreamDataCallback == NULL)
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{
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ReadStreamPacket = replyPacket; //We used up our callback already, so save this one for later.
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return;
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}
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// if (((replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG) == 0) || //Any 'command' reply (as opposed to 'data' reply) is an automatic fail here
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// (replyPacket->Length <= UPSTREAM_PACKET_HEADER_LEN) || //Should be at least one data byte in the reply.
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// (replyPacket->Length > ByteCount))
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// {
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// GetStreamDataCallback(HAL_ERROR, NULL);
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// return;
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// }
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replyPacket->Length = MIN((ByteCount + UPSTREAM_PACKET_HEADER_LEN), (MSC_MEDIA_PACKET + UPSTREAM_PACKET_HEADER_LEN));
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dataLength = replyPacket->Length - UPSTREAM_PACKET_HEADER_LEN;
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ByteCount -= dataLength;
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GetStreamDataCallback(HAL_OK, replyPacket, dataLength); //usb_msc_scsi will use this packet, so don't release now
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if (ByteCount > 0)
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{
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Upstream_MSC_GetStreamDataPacket(NULL); //Try to get the next packet now, before USB asks for it
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}
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}
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HAL_StatusTypeDef Upstream_MSC_BeginWrite(UpstreamMSCCallbackTypeDef callback,
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uint64_t readBlockStart,
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uint32_t readBlockCount)
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{
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UpstreamPacketTypeDef* freePacket;
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HAL_StatusTypeDef tempResult;
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TestReadyCallback = callback;
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freePacket = Upstream_GetFreePacketImmediately();
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freePacket->Length = UPSTREAM_PACKET_HEADER_LEN + (4 * 3);
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freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
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freePacket->Command = COMMAND_MSC_BEGIN_WRITE;
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*(uint64_t*)&(freePacket->Data[0]) = readBlockStart;
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*(uint32_t*)&(freePacket->Data[8]) = readBlockCount;
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tempResult = Upstream_TransmitPacket(freePacket);
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if (tempResult != HAL_OK)
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{
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TestReadyCallback(tempResult);
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}
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//return Upstream_GetPacket(Upstream_MSC_BeginWriteReplyCallback);
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return Upstream_GetFreePacket(Upstream_MSC_BeginWriteReplyCallback);
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}
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void Upstream_MSC_BeginWriteReplyCallback(UpstreamPacketTypeDef* replyPacket)
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{
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// if ((replyPacket->Length != (UPSTREAM_PACKET_HEADER_LEN + 1)) ||
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// (replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG) ||
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// ((replyPacket->Data[0] != HAL_OK) && (replyPacket->Data[0] != HAL_BUSY)))
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// {
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// Upstream_ReleasePacket(replyPacket);
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// TestReadyCallback(HAL_ERROR);
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// return;
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// }
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Upstream_ReleasePacket(replyPacket);
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TestReadyCallback(replyPacket->Data[0]);
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}
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HAL_StatusTypeDef Upstream_MSC_PutStreamDataPacket(UpstreamPacketTypeDef* packetToSend,
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uint32_t dataLength)
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{
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packetToSend->Length = dataLength + UPSTREAM_PACKET_HEADER_LEN;
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packetToSend->CommandClass = COMMAND_CLASS_MASS_STORAGE | COMMAND_CLASS_DATA_FLAG;
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packetToSend->Command = COMMAND_MSC_BEGIN_WRITE;
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return Upstream_TransmitPacket(packetToSend);
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}
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