root/drivers/mailbox/mailbox.h
/* SPDX-License-Identifier: GPL-2.0-only */

#ifndef __MAILBOX_H
#define __MAILBOX_H

#include <linux/bits.h>

#define TXDONE_BY_IRQ   BIT(0) /* controller has remote RTR irq */
#define TXDONE_BY_POLL  BIT(1) /* controller can read status of last TX */
#define TXDONE_BY_ACK   BIT(2) /* S/W ACK received by Client ticks the TX */

#endif /* __MAILBOX_H */