Maxim Integrated 73M1866B/73M1966B Reference Driver - Manual (Page 87)

UG_1x66B_015 73M1866B/73M1966B Reference Driver User Guide
Rev. 2.7 87
7.13 Loopback Related Data Type and Structure
7.13.1 M1966_LOOPBACK_COMMAND
Description
These loopback commands can be used in the M1966_LOOPBACK IOCTL to manage loopback sessions.
Prototype
typedef enum
{
M1966_LOOPBACK_CMD_GET = 0, /* Get the current loopback session */
M1966_LOOPBACK_CMD_SET = 1, /* Set (initiate) a loopback session */
M1966_LOOPBACK_CMD_CLEAR = 2 /* Clear (terminate) a loopback session */
}
M1966_LOOPBACK_COMMAND;
Parameters
Name Value Description
M1966_LOOPBACK_CMD_GET 0 Get the type of current loopback session.
M1966_LOOPBACK_CMD_SET 1 Initiate a loopback session.
M1966_LOOPBACK_CMD_CLEAR 2 Terminate a loopback session.
7.13.2 M1966_LOOPBACK_MODE
Description
The driver supports six loopback modes. Refer to Figure 3 for those loopback reference points.
Prototype
typedef enum
{
M1966_LOOPBACK_MODE_NONE = 0, /* No loopback */
M1966_LOOPBACK_MODE_PCMLB = 1, /* PCM Loopback */
M1966_LOOPBACK_MODE_DIGLB1 = 2, /* Digital Loopback-1 */
M1966_LOOPBACK_MODE_INTLB1 = 3, /* Internal Loopback-1 */
M1966_LOOPBACK_MODE_DIGLB2 = 4, /* Digital Loopback-2 */
M1966_LOOPBACK_MODE_INTLB2 = 5, /* Internal Loopback-2 */
M1966_LOOPBACK_MODE_ALB = 6 /* Analog Loopback */
}
M1966_LOOPBACK_MODE;
Parameters
Name Value Description
M1966_LOOPBACK_MODE_NONE 0 No Loopback.
M1966_LOOPBACK_MODE_PCMLB 1 PCM Loopback.
M1966_LOOPBACK MODE DIGLB1 2 Digital Loopback-1.
M1966_LOOPBACK MODE INTLB1 3 Internal Loopback-1.
M1966_LOOPBACK MODE DIGLB2 4 Digital Loopback-2.
M1966_LOOPBACK MODE INTLB2 5 Internal Loopback-2.
M1966_LOOPBACK MODE ALB 6 Analog Loopback.