Channel control

Description

The RX and TX channels are independently configurable. As such, many libbladeRF functions require a bladerf_channel parameter to specify the desired channel.

These functions are thread-safe.

Modules
	Gain
	Sample rate
	Bandwidth
	Frequency
	Internal loopback
	Triggers
	Receive Mux
	Scheduled Tuning
	Correction

Typedefs
typedef int	bladerf_channel

Enumerations
enum	bladerf_direction { BLADERF_RX = 0 , BLADERF_TX = 1 }
enum	bladerf_channel_layout { BLADERF_RX_X1 = 0 , BLADERF_TX_X1 = 1 , BLADERF_RX_X2 = 2 , BLADERF_TX_X2 = 3 }

Macros
#define	BLADERF_CHANNEL_RX(ch)   (bladerf_channel)(((ch) << 1) | 0x0)
#define	BLADERF_CHANNEL_TX(ch)   (bladerf_channel)(((ch) << 1) | 0x1)
#define	BLADERF_CHANNEL_INVALID   (bladerf_channel)(-1)
#define	BLADERF_CHANNEL_IS_TX(ch)   (ch & BLADERF_TX)

Functions
API_EXPORT size_t CALL_CONV	bladerf_get_channel_count (struct bladerf *dev, bladerf_direction dir)

Typedef Documentation

bladerf_channel

typedef int bladerf_channel

Channel type

Example usage:

// RX Channel 0
bladerf_channel ch = BLADERF_CHANNEL_RX(0);
 
// RX Channel 1
bladerf_channel ch = BLADERF_CHANNEL_RX(1);
 
// TX Channel 0
bladerf_channel ch = BLADERF_CHANNEL_TX(0);
 
// TX Channel 1
bladerf_channel ch = BLADERF_CHANNEL_TX(1);

Definition at line 649 of file libbladeRF.h.

Enumeration Type Documentation

bladerf_channel_layout

enum bladerf_channel_layout

Stream channel layout

Enumerator
BLADERF_RX_X1	x1 RX (SISO)
BLADERF_TX_X1	x1 TX (SISO)
BLADERF_RX_X2	x2 RX (MIMO)
BLADERF_TX_X2	x2 TX (MIMO)

Definition at line 714 of file libbladeRF.h.

bladerf_direction

enum bladerf_direction

Stream direction

Enumerator
BLADERF_RX	Receive direction
BLADERF_TX	Transmit direction

Definition at line 706 of file libbladeRF.h.

Macro Definition Documentation

BLADERF_CHANNEL_INVALID

#define BLADERF_CHANNEL_INVALID   (bladerf_channel)(-1)

Invalid channel

Definition at line 684 of file libbladeRF.h.

BLADERF_CHANNEL_IS_TX

#define BLADERF_CHANNEL_IS_TX

(

ch

)

(ch & BLADERF_TX)

Convenience macro: true if argument is a TX channel

Definition at line 701 of file libbladeRF.h.

BLADERF_CHANNEL_RX

#define BLADERF_CHANNEL_RX

(

ch

)

(bladerf_channel)(((ch) << 1) | 0x0)

RX Channel Macro

Example usage:

// RX Channel 0
bladerf_channel ch = BLADERF_CHANNEL_RX(0);
 
// RX Channel 1
bladerf_channel ch = BLADERF_CHANNEL_RX(1);

Definition at line 664 of file libbladeRF.h.

BLADERF_CHANNEL_TX

#define BLADERF_CHANNEL_TX

(

ch

)

(bladerf_channel)(((ch) << 1) | 0x1)

TX Channel Macro

Example usage:

// TX Channel 0
bladerf_channel ch = BLADERF_CHANNEL_TX(0);
 
// TX Channel 1
bladerf_channel ch = BLADERF_CHANNEL_TX(1);

Definition at line 679 of file libbladeRF.h.

Function Documentation

bladerf_get_channel_count()

API_EXPORT size_t CALL_CONV bladerf_get_channel_count	(	struct bladerf *	dev,
		bladerf_direction	dir
	)

Get the number of RX or TX channels supported by the given device

Parameters

	dev	Device handle
[in]	dir	Stream direction

Returns

Number of channels