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Add Progmem Variant to CDC_Device_Send

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This commit is contained in:
Stefan Hellermann 2015-02-28 12:05:41 +01:00
parent 4185d21fcd
commit 64ef5396a5
2 changed files with 55 additions and 0 deletions
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21
LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
View File

@ -155,6 +155,16 @@ uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo
return Endpoint_Write_Stream_LE(String, strlen(String), NULL);
}
uint8_t CDC_Device_SendString_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
const char* const String)
{
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
return ENDPOINT_RWSTREAM_DeviceDisconnected;
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
return Endpoint_Write_PStream_LE(String, strlen_P(String), NULL);
}
uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
const void* const Buffer,
const uint16_t Length)
@ -166,6 +176,17 @@ uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
return Endpoint_Write_Stream_LE(Buffer, Length, NULL);
}
uint8_t CDC_Device_SendData_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
const void* const Buffer,
const uint16_t Length)
{
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
return ENDPOINT_RWSTREAM_DeviceDisconnected;
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
return Endpoint_Write_PStream_LE(Buffer, Length, NULL);
}
uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
const uint8_t Data)
{

34
LUFA/Drivers/USB/Class/Device/CDCClassDevice.h
View File

@ -200,6 +200,24 @@
const void* const Buffer,
const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/** Sends a given data buffer from PROGMEM space to the attached USB host, if connected. If a host is not connected when the
* function is called, the string is discarded. Bytes will be queued for transmission to the host until either the endpoint
* bank becomes full, or the \ref CDC_Device_Flush() function is called to flush the pending data to the host. This allows
* for multiple bytes to be packed into a single endpoint packet, increasing data throughput.
*
* \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or
* the call will fail.
*
* \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state.
* \param[in] Buffer Pointer to a buffer containing the data to send to the device.
* \param[in] Length Length of the data to send to the host.
*
* \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
*/
uint8_t CDC_Device_SendData_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
const void* const Buffer,
const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/** Sends a given null terminated string to the attached USB host, if connected. If a host is not connected when
* the function is called, the string is discarded. Bytes will be queued for transmission to the host until either
* the endpoint bank becomes full, or the \ref CDC_Device_Flush() function is called to flush the pending data to
@ -216,6 +234,22 @@
uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
const char* const String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/** Sends a given null terminated string from PROGMEM space to the attached USB host, if connected. If a host is not connected
* when the function is called, the string is discarded. Bytes will be queued for transmission to the host until either
* the endpoint bank becomes full, or the \ref CDC_Device_Flush() function is called to flush the pending data to
* the host. This allows for multiple bytes to be packed into a single endpoint packet, increasing data throughput.
*
* \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or
* the call will fail.
*
* \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state.
* \param[in] String Pointer to the null terminated string to send to the host.
*
* \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
*/
uint8_t CDC_Device_SendString_P(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
const char* const String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/** Sends a given byte to the attached USB host, if connected. If a host is not connected when the function is called, the
* byte is discarded. Bytes will be queued for transmission to the host until either the endpoint bank becomes full, or the
* \ref CDC_Device_Flush() function is called to flush the pending data to the host. This allows for multiple bytes to be