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 */ |
56 | |