diff options
Diffstat (limited to 'lib/lufa/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c')
| -rw-r--r-- | lib/lufa/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/lib/lufa/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c b/lib/lufa/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c deleted file mode 100644 index d233e27700..0000000000 --- a/lib/lufa/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2017. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2017 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 disclaims 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), NULL); - - /* If the block type is a command, send its parameters (if any) */ - if (PIMA_SendBlock.Type == PIMA_CONTAINER_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, NULL); - } - - /* 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), NULL); - - /* 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; - uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber(); - - /* Unfreeze the data IN pipe */ - Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); - Pipe_Unfreeze(); - - /* Wait until data received on the IN pipe */ - while (!(Pipe_IsINReceived())) - { - uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber(); - - /* Check to see if a new frame has been issued (1ms elapsed) */ - if (CurrentFrameNumber != PreviousFrameNumber) - { - /* Save the new frame number and decrement the timeout period */ - PreviousFrameNumber = CurrentFrameNumber; - TimeoutMSRem--; - - /* Check to see if the timeout period for the command has elapsed */ - if (!(TimeoutMSRem)) - 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_ClearEndpointStall(Pipe_GetBoundEndpointAddress()); - - /* 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_ClearEndpointStall(Pipe_GetBoundEndpointAddress()); - - /* 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), NULL); - - /* Check if the returned block type is a response block */ - if (PIMA_ReceivedBlock.Type == PIMA_CONTAINER_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, NULL); - } - - /* 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, NULL); - - /* 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 from 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, NULL); - - /* 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, \c 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; -} - |