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
11 enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer,
12 isa_dma_transfer
13 };
14
15 struct 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
23 struct 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
51 int labpc_common_attach(struct comedi_device *dev,
52 unsigned int irq, unsigned long isr_flags);
53 void labpc_common_detach(struct comedi_device *dev);
54
55 #endif /* _NI_LABPC_H */