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https://github.com/dougg3/mac-rom-simm-programmer.git
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Started writing more command handling
This commit is contained in:
Doug Brown
parent
651c3a4be7
commit
f45cc2c4d6
@ -50,7 +50,7 @@
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<additionalInput kind="additionalinput" paths="$(LIBS)"/>
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@ -431,7 +431,7 @@
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<additionalInput kind="additionalinput" paths="$(LIBS)"/>
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22
chip_id.h
Normal file
22
chip_id.h
Normal file
@ -0,0 +1,22 @@
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/*
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* chip_id.h
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*
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* Created on: Dec 10, 2011
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* Author: Doug
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*/
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#ifndef CHIP_ID_H_
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#define CHIP_ID_H_
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#define SST_GREENLIANT 0xBF
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#define GLS29EE010 0x07
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#define GLS29SF020 0x24
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#define GLS29SF040 0x13
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#define SST39SF010A 0xB5
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#define SST39SF020A 0xB6
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#define SST39SF040 0xB7
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#define AMD 0x01
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#define AM29F040B 0xA4
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#endif /* CHIP_ID_H_ */
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@ -9,6 +9,12 @@
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#include "../LUFA/Drivers/USB/USB.h"
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#include "../Descriptors.h"
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#include "../external_mem.h"
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#include "../tests/simm_electrical_test.h"
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#define READ_CHUNK_SIZE_BYTES 1024UL
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#if ((READ_CHUNK_SIZE_BYTES % 4) != 0)
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#error Read chunk size should be a multiple of 4 bytes
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#endif
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USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
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{
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@ -18,11 +24,11 @@ USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
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.DataINEndpointNumber = CDC_TX_EPNUM,
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.DataINEndpointSize = CDC_TXRX_EPSIZE,
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.DataINEndpointDoubleBank = false,
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.DataINEndpointDoubleBank = true,
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.DataOUTEndpointNumber = CDC_RX_EPNUM,
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.DataOUTEndpointSize = CDC_TXRX_EPSIZE,
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.DataOUTEndpointDoubleBank = false,
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.DataOUTEndpointDoubleBank = true,
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.NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
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.NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
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@ -35,6 +41,38 @@ void USBSerial_Init(void)
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USB_Init();
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}
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typedef enum ProgrammerCommandState
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{
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WaitingForCommand = 0,
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ReadingByteWaitingForAddress,
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ReadingChips,
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ReadingChipsUnableSendError,
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} ProgrammerCommandState;
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typedef enum ProgrammerCommand
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{
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EnterWaitingMode = 0,
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DoElectricalTest,
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IdentifyChips,
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ReadByte,
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ReadChips,
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EraseChips,
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WriteChips,
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} ProgrammerCommand;
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typedef enum ProgrammerReply
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{
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ReplyOK,
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ReplyError,
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};
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static ProgrammerCommandState curCommandState = WaitingForCommand;
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static uint8_t byteAddressReceiveCount = 0;
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static uint16_t curReadIndex;
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void USBSerial_HandleWaitingForCommandByte(uint8_t byte);
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void USBSerial_SendReadDataChunk(void);
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void USBSerial_Check(void)
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{
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/*if (USB_DeviceState == DEVICE_STATE_Configured)
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@ -56,10 +94,89 @@ void USBSerial_Check(void)
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}
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}*/
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if (USB_DeviceState == DEVICE_STATE_Configured)
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{
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// Check for commands, etc...
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int16_t recvByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
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if (recvByte >= 0)
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{
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switch (curCommandState)
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{
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case WaitingForCommand:
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USBSerial_HandleWaitingForCommandByte((uint8_t)recvByte);
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break;
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}
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}
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}
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CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
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USB_USBTask();
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}
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void USBSerial_HandleWaitingForCommandByte(uint8_t byte)
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{
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switch (byte)
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{
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case EnterWaitingMode:
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curCommandState = WaitingForCommand;
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break;
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case DoElectricalTest:
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CDC_Device_SendByte(&VirtualSerial_CDC_Interface, ReplyOK);
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SIMMElectricalTest_Run();
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curCommandState = WaitingForCommand;
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break;
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case IdentifyChips:
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{
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struct ChipID chips[4];
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CDC_Device_SendByte(&VirtualSerial_CDC_Interface, ReplyOK);
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ExternalMem_IdentifyChips(chips);
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// TODO: Send chip ID info back to receiver
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break;
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}
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case ReadByte:
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curCommandState = ReadingByteWaitingForAddress;
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byteAddressReceiveCount = 0;
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CDC_Device_SendByte(&VirtualSerial_CDC_Interface, ReplyOK);
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break;
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case ReadChips:
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curCommandState = ReadingChips;
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curReadIndex = 0;
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CDC_Device_SendByte(&VirtualSerial_CDC_Interface, ReplyOK);
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USBSerial_SendReadDataChunk();
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break;
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case EraseChips:
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case WriteChips:
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break;
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}
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}
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void USBSerial_SendReadDataChunk(void)
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{
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// TODO: How do I send an error back to the device?
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// Maybe the device, when it tries to request the next data chunk,
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// will get an ERROR response instead of an "OK" response?
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static union
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{
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uint32_t readChunks[READ_CHUNK_SIZE_BYTES / 4];
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uint8_t readChunkBytes[READ_CHUNK_SIZE_BYTES];
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} chunks;
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ExternalMem_Read(curReadIndex * (READ_CHUNK_SIZE_BYTES/4), chunks.readChunks, READ_CHUNK_SIZE_BYTES/4);
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uint8_t retVal = CDC_Device_SendData(&VirtualSerial_CDC_Interface, (const char *)chunks.readChunkBytes, READ_CHUNK_SIZE_BYTES);
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if (retVal != ENDPOINT_RWSTREAM_NoError)
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{
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curCommandState = ReadingChipsUnableSendError;
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}
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else
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{
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curReadIndex++;
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}
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}
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/** Event handler for the library USB Configuration Changed event. */
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void EVENT_USB_Device_ConfigurationChanged(void)
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{
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