xref: /kernel/linux/linux-6.6/drivers/media/pci/mantis/mantis_uart.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
	Mantis PCI bridge driver

	Copyright (C) Manu Abraham (abraham.manu@gmail.com)

*/

#ifndef __MANTIS_UART_H
#define __MANTIS_UART_H

#define MANTIS_UART_CTL			0xe0
#define MANTIS_UART_RXINT		(1 << 4)
#define MANTIS_UART_RXFLUSH		(1 << 2)

#define MANTIS_UART_RXD			0xe8
#define MANTIS_UART_BAUD		0xec

#define MANTIS_UART_STAT		0xf0
#define MANTIS_UART_RXFIFO_DATA		(1 << 7)
#define MANTIS_UART_RXFIFO_EMPTY	(1 << 6)
#define MANTIS_UART_RXFIFO_FULL		(1 << 3)
#define MANTIS_UART_FRAME_ERR		(1 << 2)
#define MANTIS_UART_PARITY_ERR		(1 << 1)
#define MANTIS_UART_RXTHRESH_INT	(1 << 0)

enum mantis_baud {
	MANTIS_BAUD_9600	= 0,
	MANTIS_BAUD_19200,
	MANTIS_BAUD_38400,
	MANTIS_BAUD_57600,
	MANTIS_BAUD_115200
};

enum mantis_parity {
	MANTIS_PARITY_NONE	= 0,
	MANTIS_PARITY_EVEN,
	MANTIS_PARITY_ODD,
};

struct mantis_pci;

extern int mantis_uart_init(struct mantis_pci *mantis);
extern void mantis_uart_exit(struct mantis_pci *mantis);

#endif /* __MANTIS_UART_H */