4 Header for ni_labpc.c and ni_labpc_cs.c
6 Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #define EEPROM_SIZE 256 /* 256 byte eeprom */
28 #define NUM_AO_CHAN 2 /* boards have two analog output channels */
30 enum labpc_bustype
{ isa_bustype
, pci_bustype
, pcmcia_bustype
};
31 enum labpc_register_layout
{ labpc_plus_layout
, labpc_1200_layout
};
32 enum transfer_type
{ fifo_not_empty_transfer
, fifo_half_full_transfer
,
35 struct labpc_board_struct
{
37 int device_id
; /* device id for pci and pcmcia boards */
38 int ai_speed
; /* maximum input speed in nanoseconds */
39 enum labpc_bustype bustype
; /* ISA/PCI/etc. */
40 enum labpc_register_layout register_layout
; /* 1200 has extra registers compared to pc+ */
41 int has_ao
; /* has analog output true/false */
42 const struct comedi_lrange
*ai_range_table
;
43 const int *ai_range_code
;
44 const int *ai_range_is_unipolar
;
45 unsigned ai_scan_up
:1; /* board can auto scan up in ai channels, not just down */
46 unsigned memory_mapped_io
:1; /* uses memory mapped io instead of ioports */
49 struct labpc_private
{
50 struct mite_struct
*mite
; /* for mite chip on pci-1200 */
51 volatile unsigned long long count
; /* number of data points left to be taken */
52 unsigned int ao_value
[NUM_AO_CHAN
]; /* software copy of analog output values */
53 /* software copys of bits written to command registers */
54 volatile unsigned int command1_bits
;
55 volatile unsigned int command2_bits
;
56 volatile unsigned int command3_bits
;
57 volatile unsigned int command4_bits
;
58 volatile unsigned int command5_bits
;
59 volatile unsigned int command6_bits
;
60 /* store last read of board status registers */
61 volatile unsigned int status1_bits
;
62 volatile unsigned int status2_bits
;
63 unsigned int divisor_a0
; /* value to load into board's counter a0 (conversion pacing) for timed conversions */
64 unsigned int divisor_b0
; /* value to load into board's counter b0 (master) for timed conversions */
65 unsigned int divisor_b1
; /* value to load into board's counter b1 (scan pacing) for timed conversions */
66 unsigned int dma_chan
; /* dma channel to use */
67 u16
*dma_buffer
; /* buffer ai will dma into */
68 unsigned int dma_transfer_size
; /* transfer size in bytes for current transfer */
69 enum transfer_type current_transfer
; /* we are using dma/fifo-half-full/etc. */
70 unsigned int eeprom_data
[EEPROM_SIZE
]; /* stores contents of board's eeprom */
71 unsigned int caldac
[16]; /* stores settings of calibration dacs */
72 /* function pointers so we can use inb/outb or readb/writeb as appropriate */
73 unsigned int (*read_byte
) (unsigned long address
);
74 void (*write_byte
) (unsigned int byte
, unsigned long address
);
77 int labpc_common_attach(struct comedi_device
*dev
, unsigned long iobase
,
78 unsigned int irq
, unsigned int dma
);
79 int labpc_common_detach(struct comedi_device
*dev
);
81 extern const int labpc_1200_is_unipolar
[];
82 extern const int labpc_1200_ai_gain_bits
[];
83 extern const struct comedi_lrange range_labpc_1200_ai
;
85 #endif /* _NI_LABPC_H */