freetdm: allow IO statistics access to users

added ftdm iostats command

libs/freetdm/src/include/private/ftdm_core.h

@@ -359,35 +359,6 @@ typedef struct {
 	ftdm_mutex_t *mutex;
 } ftdm_dtmf_debug_t;
 
-typedef enum {
-	FTDM_IOSTATS_ERROR_CRC		= (1 << 0),
-	FTDM_IOSTATS_ERROR_FRAME	= (1 << 1),
-	FTDM_IOSTATS_ERROR_ABORT 	= (1 << 2),
-	FTDM_IOSTATS_ERROR_FIFO 	= (1 << 3),
-	FTDM_IOSTATS_ERROR_DMA		= (1 << 4),
-	FTDM_IOSTATS_ERROR_QUEUE_THRES	= (1 << 5), /* Queue reached high threshold */
-	FTDM_IOSTATS_ERROR_QUEUE_FULL	= (1 << 6), /* Queue is full */
-} ftdm_iostats_error_type_t;
-
-typedef struct {
-	struct {
-		uint32_t errors;
-		uint16_t flags;
-		uint8_t	 queue_size;	/* max queue size configured */
-		uint8_t	 queue_len;	/* Current number of elements in queue */
-		uint64_t packets;
-	} rx;
-
-	struct {
-		uint32_t errors;
-		uint16_t flags;
-		uint8_t  idle_packets;
-		uint8_t	 queue_size;	/* max queue size configured */
-		uint8_t	 queue_len;	/* Current number of elements in queue */
-		uint64_t packets;
-	} tx;
-} ftdm_channel_iostats_t;
-
 /* 2^8 table size, one for each byte (sample) value */
 #define FTDM_GAINS_TABLE_SIZE 256
 struct ftdm_channel {