1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #ifndef __MAILBOX_H
4 #define __MAILBOX_H
5 
6 #include <linux/bits.h>
7 
8 #define TXDONE_BY_IRQ	BIT(0) /* controller has remote RTR irq */
9 #define TXDONE_BY_POLL	BIT(1) /* controller can read status of last TX */
10 #define TXDONE_BY_ACK	BIT(2) /* S/W ACK received by Client ticks the TX */
11 
12 #endif /* __MAILBOX_H */
13