111 struct rxtx {  struct
119 	struct rxtx rxtx;       /* loop back buffer */  argument
310 		if (mdev_state->s[index].rxtx.count <  in handle_bar_write()
312 			mdev_state->s[index].rxtx.fifo[  in handle_bar_write()
313 					mdev_state->s[index].rxtx.head] = data;  in handle_bar_write()
314 			mdev_state->s[index].rxtx.count++;  in handle_bar_write()
315 			CIRCULAR_BUF_INC_IDX(mdev_state->s[index].rxtx.head);  in handle_bar_write()
324 			   (mdev_state->s[index].rxtx.count ==  in handle_bar_write()
358 			    (mdev_state->s[index].rxtx.head ==  in handle_bar_write()
359 					mdev_state->s[index].rxtx.tail)) {  in handle_bar_write()
378 			mdev_state->s[index].rxtx.count = 0;  in handle_bar_write()
379 			mdev_state->s[index].rxtx.head = 0;  in handle_bar_write()
380 			mdev_state->s[index].rxtx.tail = 0;  in handle_bar_write()
475 		if (mdev_state->s[index].rxtx.head !=  in handle_bar_read()
476 				 mdev_state->s[index].rxtx.tail) {  in handle_bar_read()
477 			*buf = mdev_state->s[index].rxtx.fifo[  in handle_bar_read()
478 						mdev_state->s[index].rxtx.tail];  in handle_bar_read()
479 			mdev_state->s[index].rxtx.count--;  in handle_bar_read()
480 			CIRCULAR_BUF_INC_IDX(mdev_state->s[index].rxtx.tail);  in handle_bar_read()
483 		if (mdev_state->s[index].rxtx.head ==  in handle_bar_read()
484 				mdev_state->s[index].rxtx.tail) {  in handle_bar_read()
520 		    (mdev_state->s[index].rxtx.count >=  in handle_bar_read()
526 		    (mdev_state->s[index].rxtx.head ==  in handle_bar_read()
527 				mdev_state->s[index].rxtx.tail))  in handle_bar_read()
557 		if (mdev_state->s[index].rxtx.head !=  in handle_bar_read()
558 				 mdev_state->s[index].rxtx.tail)  in handle_bar_read()
566 		if (mdev_state->s[index].rxtx.head ==  in handle_bar_read()
567 				 mdev_state->s[index].rxtx.tail)  in handle_bar_read()
581 			if (mdev_state->s[index].rxtx.count <  in handle_bar_read()