1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Header for ni_labpc ISA/PCMCIA/PCI drivers
4 *
5 * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
6 */
7
8#ifndef _NI_LABPC_H
9#define _NI_LABPC_H
10
11enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer,
12	isa_dma_transfer
13};
14
15struct labpc_boardinfo {
16	const char *name;
17	int ai_speed;			/* maximum input speed in ns */
18	unsigned ai_scan_up:1;		/* can auto scan up in ai channels */
19	unsigned has_ao:1;		/* has analog outputs */
20	unsigned is_labpc1200:1;	/* has extra regs compared to pc+ */
21};
22
23struct labpc_private {
24	struct comedi_isadma *dma;
25	struct comedi_8254 *counter;
26
27	/*  number of data points left to be taken */
28	unsigned long long count;
29	/*  software copys of bits written to command registers */
30	unsigned int cmd1;
31	unsigned int cmd2;
32	unsigned int cmd3;
33	unsigned int cmd4;
34	unsigned int cmd5;
35	unsigned int cmd6;
36	/*  store last read of board status registers */
37	unsigned int stat1;
38	unsigned int stat2;
39
40	/* we are using dma/fifo-half-full/etc. */
41	enum transfer_type current_transfer;
42	/*
43	 * function pointers so we can use inb/outb or readb/writeb as
44	 * appropriate
45	 */
46	unsigned int (*read_byte)(struct comedi_device *dev, unsigned long reg);
47	void (*write_byte)(struct comedi_device *dev,
48			   unsigned int byte, unsigned long reg);
49};
50
51int labpc_common_attach(struct comedi_device *dev,
52			unsigned int irq, unsigned long isr_flags);
53void labpc_common_detach(struct comedi_device *dev);
54
55#endif /* _NI_LABPC_H */
56