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Remove the timeout period extension code from the AVRISP project, as no single command should ever exceed the maximum timeout period. Extend timeout period to 1 second per command, so that an accidental timeout will never occur.

Browse Source
pull/1469/head
Dean Camera 15 years ago
parent 0313034245
commit 666c0fa4c3
9 changed files with 33 additions and 74 deletions
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2
LUFA/ManPages/ChangeLog.txt
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@ -44,6 +44,8 @@
* - Fixed void pointer arithmetic in ConfigDescriptor.h breaking C++ compatibility (thanks to Michael Hennebry)
* - Fixed broken PDI EEPROM Section Erase functionality in the AVRISP-MKII project
* - Fixed USB_Device_SendRemoteWakeup() not working when the USB clock was frozen during USB bus suspend (thanks to Brian Dickman)
* - Fixed occasional lockup of the AVRISP project due to the timeout extension code incorrectly extending the timeout in
* PDI and TPI programming modes infinitely
*
* \section Sec_ChangeLog100513 Version 100513
* <b>New:</b>

11
Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c
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@ -76,7 +76,7 @@ void ISPProtocol_EnterISPMode(void)
/* Continuously attempt to synchronize with the target until either the number of attempts specified
* by the host has exceeded, or the the device sends back the expected response values */
while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus == STATUS_CMD_FAILED) && TimeoutMSRemaining)
while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus == STATUS_CMD_FAILED) && TimeoutTicksRemaining)
{
uint8_t ResponseBytes[4];
@ -552,13 +552,8 @@ void ISPProtocol_SPIMulti(void)
*/
void ISPProtocol_DelayMS(uint8_t DelayMS)
{
while (DelayMS-- && TimeoutMSRemaining)
{
if (TimeoutMSRemaining)
TimeoutMSRemaining--;
_delay_ms(1);
}
while (DelayMS-- && TimeoutTicksRemaining)
_delay_ms(1);
}
#endif

19
Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
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@ -129,9 +129,9 @@ uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint1
SPI_SendByte(PollAddress >> 8);
SPI_SendByte(PollAddress & 0xFF);
}
while ((SPI_TransferByte(0x00) == PollValue) && TimeoutMSRemaining);
while ((SPI_TransferByte(0x00) == PollValue) && TimeoutTicksRemaining);
if (!(TimeoutMSRemaining))
if (!(TimeoutTicksRemaining))
ProgrammingStatus = STATUS_CMD_TOUT;
break;
@ -141,9 +141,6 @@ uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint1
break;
}
if (ProgrammingStatus == STATUS_CMD_OK)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return ProgrammingStatus;
}
@ -160,17 +157,9 @@ uint8_t ISPTarget_WaitWhileTargetBusy(void)
SPI_SendByte(0x00);
SPI_SendByte(0x00);
}
while ((SPI_ReceiveByte() & 0x01) && TimeoutMSRemaining);
while ((SPI_ReceiveByte() & 0x01) && TimeoutTicksRemaining);
if (TimeoutMSRemaining)
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return STATUS_CMD_OK;
}
else
{
return STATUS_RDY_BSY_TOUT;
}
return TimeoutTicksRemaining ? STATUS_CMD_OK : STATUS_RDY_BSY_TOUT;
}
/** Sends a low-level LOAD EXTENDED ADDRESS command to the target, for addressing of memory beyond the

12
Projects/AVRISP-MKII/Lib/V2Protocol.c
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@ -46,8 +46,8 @@ bool MustLoadExtendedAddress;
/** ISR to manage timeouts whilst processing a V2Protocol command */
ISR(TIMER0_COMPA_vect, ISR_NOBLOCK)
{
if (TimeoutMSRemaining)
TimeoutMSRemaining--;
if (TimeoutTicksRemaining)
TimeoutTicksRemaining--;
}
/** Initializes the hardware and software associated with the V2 protocol command handling. */
@ -60,8 +60,8 @@ void V2Protocol_Init(void)
ADC_StartReading(VTARGET_ADC_CHANNEL_MASK | ADC_RIGHT_ADJUSTED | ADC_REFERENCE_AVCC);
#endif
/* Millisecond timer initialization for managing the command timeout counter */
OCR0A = ((F_CPU / 64) / 1000);
/* Timeout timer initialization (10ms period) */
OCR0A = ((F_CPU / 1024) / 100);
TCCR0A = (1 << WGM01);
TIMSK0 = (1 << OCIE0A);
@ -77,8 +77,8 @@ void V2Protocol_ProcessCommand(void)
uint8_t V2Command = Endpoint_Read_Byte();
/* Start the timeout management timer */
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
TCCR0B = ((1 << CS01) | (1 << CS00));
TimeoutTicksRemaining = COMMAND_TIMEOUT_TICKS;
TCCR0B = ((1 << CS02) | (1 << CS00));
switch (V2Command)
{

6
Projects/AVRISP-MKII/Lib/V2Protocol.h
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@ -66,11 +66,11 @@
/** Programmer ID string, returned to the host during the CMD_SIGN_ON command processing. */
#define PROGRAMMER_ID "AVRISP_MK2"
/** Timeout period for each issued command from the host before it is aborted. */
#define COMMAND_TIMEOUT_MS 200
/** Timeout period for each issued command from the host before it is aborted (in 10ms ticks). */
#define COMMAND_TIMEOUT_TICKS 100
/** Command timeout counter register, GPIOR for speed. */
#define TimeoutMSRemaining GPIOR0
#define TimeoutTicksRemaining GPIOR0
/** MUX mask for the VTARGET ADC channel number. */
#define VTARGET_ADC_CHANNEL_MASK _GETADCMUXMASK(ADC_CHANNEL, VTARGET_ADC_CHANNEL)

18
Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
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@ -85,15 +85,12 @@ bool TINYNVM_WaitWhileNVMBusBusy(void)
uint8_t StatusRegister = XPROGTarget_ReceiveByte();
/* We might have timed out waiting for the status register read response, check here */
if (!(TimeoutMSRemaining))
if (!(TimeoutTicksRemaining))
return false;
/* Check the status register read response to see if the NVM bus is enabled */
if (StatusRegister & TPI_STATUS_NVM)
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
return true;
}
}
@ -113,15 +110,12 @@ bool TINYNVM_WaitWhileNVMControllerBusy(void)
uint8_t StatusRegister = XPROGTarget_ReceiveByte();
/* We might have timed out waiting for the status register read response, check here */
if (!(TimeoutMSRemaining))
if (!(TimeoutTicksRemaining))
return false;
/* Check to see if the BUSY flag is still set */
if (!(StatusRegister & (1 << 7)))
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
return true;
}
}
@ -146,14 +140,14 @@ bool TINYNVM_ReadMemory(const uint16_t ReadAddress, uint8_t* ReadBuffer, uint16_
/* Send the address of the location to read from */
TINYNVM_SendPointerAddress(ReadAddress);
while (ReadSize-- && TimeoutMSRemaining)
while (ReadSize-- && TimeoutTicksRemaining)
{
/* Read the byte of data from the target */
XPROGTarget_SendByte(TPI_CMD_SLD | TPI_POINTER_INDIRECT_PI);
*(ReadBuffer++) = XPROGTarget_ReceiveByte();
}
return (TimeoutMSRemaining != 0);
return (TimeoutTicksRemaining != 0);
}
/** Writes word addressed memory to the target's memory spaces.

20
Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
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@ -80,15 +80,12 @@ bool XMEGANVM_WaitWhileNVMBusBusy(void)
uint8_t StatusRegister = XPROGTarget_ReceiveByte();
/* We might have timed out waiting for the status register read response, check here */
if (!(TimeoutMSRemaining))
if (!(TimeoutTicksRemaining))
return false;
/* Check the status register read response to see if the NVM bus is enabled */
if (StatusRegister & PDI_STATUS_NVM)
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
return true;
}
}
@ -109,15 +106,12 @@ bool XMEGANVM_WaitWhileNVMControllerBusy(void)
uint8_t StatusRegister = XPROGTarget_ReceiveByte();
/* We might have timed out waiting for the status register read response, check here */
if (!(TimeoutMSRemaining))
if (!(TimeoutTicksRemaining))
return false;
/* Check to see if the BUSY flag is still set */
if (!(StatusRegister & (1 << 7)))
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
return true;
}
}
@ -165,7 +159,7 @@ bool XMEGANVM_GetMemoryCRC(const uint8_t CRCCommand, uint32_t* const CRCDest)
for (uint8_t i = 0; i < XMEGA_CRC_LENGTH; i++)
((uint8_t*)CRCDest)[i] = XPROGTarget_ReceiveByte();
return (TimeoutMSRemaining != 0);
return (TimeoutTicksRemaining != 0);
}
/** Reads memory from the target's memory spaces.
@ -197,10 +191,10 @@ bool XMEGANVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, uint16
/* Send a LD command with indirect access and post-increment to read out the bytes */
XPROGTarget_SendByte(PDI_CMD_LD | (PDI_POINTER_INDIRECT_PI << 2) | PDI_DATSIZE_1BYTE);
while (ReadSize-- && TimeoutMSRemaining)
while (ReadSize-- && TimeoutTicksRemaining)
*(ReadBuffer++) = XPROGTarget_ReceiveByte();
return (TimeoutMSRemaining != 0);
return (TimeoutTicksRemaining != 0);
}
/** Writes byte addressed memory to the target's memory spaces.

2
Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
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@ -131,7 +131,7 @@ static void XPROGProtocol_EnterXPROGMode(void)
XPROGTarget_SendByte(0x07);
/* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
XPROGTarget_SendByte(PDI_CMD_KEY);
XPROGTarget_SendByte(PDI_CMD_KEY);
for (uint8_t i = sizeof(PDI_NVMENABLE_KEY); i > 0; i--)
XPROGTarget_SendByte(PDI_NVMENABLE_KEY[i - 1]);

17
Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c
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@ -138,9 +138,6 @@ void XPROGTarget_SendByte(const uint8_t Byte)
while (!(UCSR1A & (1 << UDRE1)));
UCSR1A |= (1 << TXC1);
UDR1 = Byte;
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
}
/** Receives a byte via the software USART, blocking until data is received.
@ -154,10 +151,7 @@ uint8_t XPROGTarget_ReceiveByte(void)
XPROGTarget_SetRxMode();
/* Wait until a byte has been received before reading */
while (!(UCSR1A & (1 << RXC1)) && TimeoutMSRemaining);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
while (!(UCSR1A & (1 << RXC1)) && TimeoutTicksRemaining);
return UDR1;
}
@ -176,9 +170,6 @@ void XPROGTarget_SendBreak(void)
while (PIND & (1 << 5));
while (!(PIND & (1 << 5)));
}
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
}
static void XPROGTarget_SetTxMode(void)
@ -193,9 +184,6 @@ static void XPROGTarget_SetTxMode(void)
UCSR1B &= ~(1 << RXEN1);
UCSR1B |= (1 << TXEN1);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
IsSending = true;
}
@ -210,9 +198,6 @@ static void XPROGTarget_SetRxMode(void)
DDRD &= ~(1 << 3);
PORTD &= ~(1 << 3);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
IsSending = false;
}

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