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Added error codes to most StillImageHost demo commands.

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This commit is contained in:
Dean Camera 2009-07-20 02:27:32 +00:00
parent cf313989e6
commit 8a68203d34
4 changed files with 34 additions and 18 deletions
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16
Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c
View file

@ -80,20 +80,24 @@ void SImage_SendBlockHeader(void)
}
/** Function to receive a PIMA event container from the attached still image device. */
void SImage_RecieveEventHeader(void)
uint8_t SImage_RecieveEventHeader(void)
{
uint8_t ErrorCode;
/* Unfreeze the events pipe */
Pipe_SelectPipe(SIMAGE_EVENTS_PIPE);
Pipe_Unfreeze();
/* Read in the event data into the global structure */
Pipe_Read_Stream_LE(&PIMA_EventBlock, sizeof(PIMA_EventBlock));
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. */
@ -193,20 +197,24 @@ uint8_t SImage_RecieveBlockHeader(void)
* \param[in] Buffer Source data buffer to send to the device
* \param[in] Bytes Number of bytes to send
*/
void SImage_SendData(void* Buffer, uint16_t Bytes)
uint8_t SImage_SendData(void* Buffer, 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 */
Pipe_Write_Stream_LE(Buffer, Bytes);
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.

10
Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.h
View file

@ -50,6 +50,12 @@
/** Pipe number of the Still Image events pipe */
#define SIMAGE_EVENTS_PIPE 0x03
/** Length in bytes of a given Unicode string's character length
*
* \param[in] chars Total number of Unicode characters in the string
*/
#define UNICODE_STRING_LENGTH(chars) (chars << 1)
/** Timeout period between the issuing of a command to a device, and the reception of the first packet */
#define COMMAND_DATA_TIMEOUT_MS 5000
@ -101,8 +107,8 @@
/* Function Prototypes: */
void SImage_SendBlockHeader(void);
uint8_t SImage_RecieveBlockHeader(void);
void SImage_RecieveEventHeader(void);
void SImage_SendData(void* Buffer, uint16_t Bytes);
uint8_t SImage_RecieveEventHeader(void);
uint8_t SImage_SendData(void* Buffer, uint16_t Bytes);
uint8_t SImage_ReadData(void* Buffer, uint16_t Bytes);
bool SImage_IsEventReceived(void);
uint8_t SImage_ClearPipeStall(const uint8_t EndpointNum);