X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/e331b531c6e6d93eb0eee42b9002074e8090ad18..071e02c6b6b4837fa9cf0b6d4c749994e02638d7:/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c?ds=inline diff --git a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c index d9fc68a77..530450988 100644 --- a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c +++ b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c @@ -1,265 +1,265 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Still Image Device commands, to issue PIMA commands to the device for - * reading device status, capacity, and other characteristics as well as - * reading and writing of stored image data. - */ - -#include "StillImageCommands.h" - -/** PIMA block container for the block to send to the device */ -PIMA_Container_t PIMA_SendBlock; - -/** PIMA block container for the last received block from the device */ -PIMA_Container_t PIMA_ReceivedBlock; - -/** PIMA block container for the last event block received from the device */ -PIMA_Container_t PIMA_EventBlock; - - -/** Function to send the PIMA command container to the attached still image device. */ -void SImage_SendBlockHeader(void) -{ - /* Unfreeze the data OUT pipe ready for data transmission */ - Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE); - Pipe_Unfreeze(); - - /* Write the PIMA block to the data OUT pipe */ - Pipe_Write_Stream_LE(&PIMA_SendBlock, PIMA_COMMAND_SIZE(0)); - - /* If the block type is a command, send its parameters (if any) */ - if (PIMA_SendBlock.Type == CType_CommandBlock) - { - /* Determine the size of the parameters in the block via the data length attribute */ - uint8_t ParamBytes = (PIMA_SendBlock.DataLength - PIMA_COMMAND_SIZE(0)); - - /* Check if any parameters in the command block */ - if (ParamBytes) - { - /* Write the PIMA parameters to the data OUT pipe */ - Pipe_Write_Stream_LE(&PIMA_SendBlock.Params, ParamBytes); - } - - /* Send the PIMA command block to the attached device */ - Pipe_ClearOUT(); - } - - /* Freeze pipe after use */ - Pipe_Freeze(); -} - -/** Function to receive a PIMA event container from the attached still image device. - * - * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum - */ -uint8_t SImage_ReceiveEventHeader(void) -{ - uint8_t ErrorCode; - - /* Unfreeze the events pipe */ - Pipe_SelectPipe(SIMAGE_EVENTS_PIPE); - Pipe_Unfreeze(); - - /* Read in the event data into the global structure */ - ErrorCode = Pipe_Read_Stream_LE(&PIMA_EventBlock, sizeof(PIMA_EventBlock)); - - /* Clear the pipe after read complete to prepare for next event */ - Pipe_ClearIN(); - - /* Freeze the event pipe again after use */ - Pipe_Freeze(); - - return ErrorCode; -} - -/** Function to receive a PIMA response container from the attached still image device. - * - * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum - */ -uint8_t SImage_ReceiveBlockHeader(void) -{ - uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS; - - /* Unfreeze the data IN pipe */ - Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); - Pipe_Unfreeze(); - - /* Wait until data received on the IN pipe */ - while (!(Pipe_IsReadWriteAllowed())) - { - /* Check to see if a new frame has been issued (1ms elapsed) */ - if (USB_INT_HasOccurred(USB_INT_HSOFI)) - { - /* Clear the flag and decrement the timeout period counter */ - USB_INT_Clear(USB_INT_HSOFI); - TimeoutMSRem--; - - /* Check to see if the timeout period for the command has elapsed */ - if (!(TimeoutMSRem)) - { - /* Return error code */ - return PIPE_RWSTREAM_Timeout; - } - } - - Pipe_Freeze(); - Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE); - Pipe_Unfreeze(); - - /* Check if pipe stalled (command failed by device) */ - if (Pipe_IsStalled()) - { - /* Clear the stall condition on the OUT pipe */ - USB_Host_ClearPipeStall(SIMAGE_DATA_OUT_PIPE); - - /* Return error code and break out of the loop */ - return PIPE_RWSTREAM_PipeStalled; - } - - Pipe_Freeze(); - Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); - Pipe_Unfreeze(); - - /* Check if pipe stalled (command failed by device) */ - if (Pipe_IsStalled()) - { - /* Clear the stall condition on the IN pipe */ - USB_Host_ClearPipeStall(SIMAGE_DATA_IN_PIPE); - - /* Return error code */ - return PIPE_RWSTREAM_PipeStalled; - } - - /* Check to see if the device was disconnected, if so exit function */ - if (USB_HostState == HOST_STATE_Unattached) - return PIPE_RWSTREAM_DeviceDisconnected; - } - - /* Load in the response from the attached device */ - Pipe_Read_Stream_LE(&PIMA_ReceivedBlock, PIMA_COMMAND_SIZE(0)); - - /* Check if the returned block type is a response block */ - if (PIMA_ReceivedBlock.Type == CType_ResponseBlock) - { - /* Determine the size of the parameters in the block via the data length attribute */ - uint8_t ParamBytes = (PIMA_ReceivedBlock.DataLength - PIMA_COMMAND_SIZE(0)); - - /* Check if the device has returned any parameters */ - if (ParamBytes) - { - /* Read the PIMA parameters from the data IN pipe */ - Pipe_Read_Stream_LE(&PIMA_ReceivedBlock.Params, ParamBytes); - } - - /* Clear pipe bank after use */ - Pipe_ClearIN(); - } - - /* Freeze the IN pipe after use */ - Pipe_Freeze(); - - return PIPE_RWSTREAM_NoError; -} - -/** Function to send the given data to the device, after a command block has been issued. - * - * \param[in] Buffer Source data buffer to send to the device - * \param[in] Bytes Number of bytes to send - * - * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum - */ -uint8_t SImage_SendData(void* const Buffer, const uint16_t Bytes) -{ - uint8_t ErrorCode; - - /* Unfreeze the data OUT pipe */ - Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE); - Pipe_Unfreeze(); - - /* Write the data contents to the pipe */ - ErrorCode = Pipe_Write_Stream_LE(Buffer, Bytes); - - /* Send the last packet to the attached device */ - Pipe_ClearOUT(); - - /* Freeze the pipe again after use */ - Pipe_Freeze(); - - return ErrorCode; -} - -/** Function to receive the given data to the device, after a response block has been received. - * - * \param[out] Buffer Destination data buffer to put read bytes from the device - * \param[in] Bytes Number of bytes to receive - * - * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum - */ -uint8_t SImage_ReadData(void* const Buffer, const uint16_t Bytes) -{ - uint8_t ErrorCode; - - /* Unfreeze the data IN pipe */ - Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); - Pipe_Unfreeze(); - - /* Read in the data into the buffer */ - ErrorCode = Pipe_Read_Stream_LE(Buffer, Bytes); - - /* Freeze the pipe again after use */ - Pipe_Freeze(); - - return ErrorCode; -} - -/** Function to test if a PIMA event block is waiting to be read in from the attached device. - * - * \return True if an event is waiting to be read in from the device, false otherwise - */ -bool SImage_IsEventReceived(void) -{ - bool IsEventReceived = false; - - /* Unfreeze the Event pipe */ - Pipe_SelectPipe(SIMAGE_EVENTS_PIPE); - Pipe_Unfreeze(); - - /* If the pipe contains data, an event has been received */ - if (Pipe_BytesInPipe()) - IsEventReceived = true; - - /* Freeze the pipe after use */ - Pipe_Freeze(); - - return IsEventReceived; -} +/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Still Image Device commands, to issue PIMA commands to the device for + * reading device status, capacity, and other characteristics as well as + * reading and writing of stored image data. + */ + +#include "StillImageCommands.h" + +/** PIMA block container for the block to send to the device */ +PIMA_Container_t PIMA_SendBlock; + +/** PIMA block container for the last received block from the device */ +PIMA_Container_t PIMA_ReceivedBlock; + +/** PIMA block container for the last event block received from the device */ +PIMA_Container_t PIMA_EventBlock; + + +/** Function to send the PIMA command container to the attached still image device. */ +void SImage_SendBlockHeader(void) +{ + /* Unfreeze the data OUT pipe ready for data transmission */ + Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE); + Pipe_Unfreeze(); + + /* Write the PIMA block to the data OUT pipe */ + Pipe_Write_Stream_LE(&PIMA_SendBlock, PIMA_COMMAND_SIZE(0)); + + /* If the block type is a command, send its parameters (if any) */ + if (PIMA_SendBlock.Type == CType_CommandBlock) + { + /* Determine the size of the parameters in the block via the data length attribute */ + uint8_t ParamBytes = (PIMA_SendBlock.DataLength - PIMA_COMMAND_SIZE(0)); + + /* Check if any parameters in the command block */ + if (ParamBytes) + { + /* Write the PIMA parameters to the data OUT pipe */ + Pipe_Write_Stream_LE(&PIMA_SendBlock.Params, ParamBytes); + } + + /* Send the PIMA command block to the attached device */ + Pipe_ClearOUT(); + } + + /* Freeze pipe after use */ + Pipe_Freeze(); +} + +/** Function to receive a PIMA event container from the attached still image device. + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum + */ +uint8_t SImage_ReceiveEventHeader(void) +{ + uint8_t ErrorCode; + + /* Unfreeze the events pipe */ + Pipe_SelectPipe(SIMAGE_EVENTS_PIPE); + Pipe_Unfreeze(); + + /* Read in the event data into the global structure */ + ErrorCode = Pipe_Read_Stream_LE(&PIMA_EventBlock, sizeof(PIMA_EventBlock)); + + /* Clear the pipe after read complete to prepare for next event */ + Pipe_ClearIN(); + + /* Freeze the event pipe again after use */ + Pipe_Freeze(); + + return ErrorCode; +} + +/** Function to receive a PIMA response container from the attached still image device. + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum + */ +uint8_t SImage_ReceiveBlockHeader(void) +{ + uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS; + + /* Unfreeze the data IN pipe */ + Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); + Pipe_Unfreeze(); + + /* Wait until data received on the IN pipe */ + while (!(Pipe_IsReadWriteAllowed())) + { + /* Check to see if a new frame has been issued (1ms elapsed) */ + if (USB_INT_HasOccurred(USB_INT_HSOFI)) + { + /* Clear the flag and decrement the timeout period counter */ + USB_INT_Clear(USB_INT_HSOFI); + TimeoutMSRem--; + + /* Check to see if the timeout period for the command has elapsed */ + if (!(TimeoutMSRem)) + { + /* Return error code */ + return PIPE_RWSTREAM_Timeout; + } + } + + Pipe_Freeze(); + Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE); + Pipe_Unfreeze(); + + /* Check if pipe stalled (command failed by device) */ + if (Pipe_IsStalled()) + { + /* Clear the stall condition on the OUT pipe */ + USB_Host_ClearPipeStall(SIMAGE_DATA_OUT_PIPE); + + /* Return error code and break out of the loop */ + return PIPE_RWSTREAM_PipeStalled; + } + + Pipe_Freeze(); + Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); + Pipe_Unfreeze(); + + /* Check if pipe stalled (command failed by device) */ + if (Pipe_IsStalled()) + { + /* Clear the stall condition on the IN pipe */ + USB_Host_ClearPipeStall(SIMAGE_DATA_IN_PIPE); + + /* Return error code */ + return PIPE_RWSTREAM_PipeStalled; + } + + /* Check to see if the device was disconnected, if so exit function */ + if (USB_HostState == HOST_STATE_Unattached) + return PIPE_RWSTREAM_DeviceDisconnected; + } + + /* Load in the response from the attached device */ + Pipe_Read_Stream_LE(&PIMA_ReceivedBlock, PIMA_COMMAND_SIZE(0)); + + /* Check if the returned block type is a response block */ + if (PIMA_ReceivedBlock.Type == CType_ResponseBlock) + { + /* Determine the size of the parameters in the block via the data length attribute */ + uint8_t ParamBytes = (PIMA_ReceivedBlock.DataLength - PIMA_COMMAND_SIZE(0)); + + /* Check if the device has returned any parameters */ + if (ParamBytes) + { + /* Read the PIMA parameters from the data IN pipe */ + Pipe_Read_Stream_LE(&PIMA_ReceivedBlock.Params, ParamBytes); + } + + /* Clear pipe bank after use */ + Pipe_ClearIN(); + } + + /* Freeze the IN pipe after use */ + Pipe_Freeze(); + + return PIPE_RWSTREAM_NoError; +} + +/** Function to send the given data to the device, after a command block has been issued. + * + * \param[in] Buffer Source data buffer to send to the device + * \param[in] Bytes Number of bytes to send + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum + */ +uint8_t SImage_SendData(void* const Buffer, const uint16_t Bytes) +{ + uint8_t ErrorCode; + + /* Unfreeze the data OUT pipe */ + Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE); + Pipe_Unfreeze(); + + /* Write the data contents to the pipe */ + ErrorCode = Pipe_Write_Stream_LE(Buffer, Bytes); + + /* Send the last packet to the attached device */ + Pipe_ClearOUT(); + + /* Freeze the pipe again after use */ + Pipe_Freeze(); + + return ErrorCode; +} + +/** Function to receive the given data to the device, after a response block has been received. + * + * \param[out] Buffer Destination data buffer to put read bytes from the device + * \param[in] Bytes Number of bytes to receive + * + * \return A value from the Pipe_Stream_RW_ErrorCodes_t enum + */ +uint8_t SImage_ReadData(void* const Buffer, const uint16_t Bytes) +{ + uint8_t ErrorCode; + + /* Unfreeze the data IN pipe */ + Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); + Pipe_Unfreeze(); + + /* Read in the data into the buffer */ + ErrorCode = Pipe_Read_Stream_LE(Buffer, Bytes); + + /* Freeze the pipe again after use */ + Pipe_Freeze(); + + return ErrorCode; +} + +/** Function to test if a PIMA event block is waiting to be read in from the attached device. + * + * \return True if an event is waiting to be read in from the device, false otherwise + */ +bool SImage_IsEventReceived(void) +{ + bool IsEventReceived = false; + + /* Unfreeze the Event pipe */ + Pipe_SelectPipe(SIMAGE_EVENTS_PIPE); + Pipe_Unfreeze(); + + /* If the pipe contains data, an event has been received */ + if (Pipe_BytesInPipe()) + IsEventReceived = true; + + /* Freeze the pipe after use */ + Pipe_Freeze(); + + return IsEventReceived; +}