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,
36 struct labpc_board_struct {
38 int device_id; /* device id for pci and pcmcia boards */
39 int ai_speed; /* maximum input speed in nanoseconds */
40 enum labpc_bustype bustype; /* ISA/PCI/etc. */
41 enum labpc_register_layout register_layout; /* 1200 has extra registers compared to pc+ */
42 int has_ao; /* has analog output true/false */
43 const struct comedi_lrange *ai_range_table;
44 const int *ai_range_code;
45 const int *ai_range_is_unipolar;
46 unsigned ai_scan_up:1; /* board can auto scan up in ai channels, not just down */
47 unsigned memory_mapped_io:1; /* uses memory mapped io instead of ioports */
50 struct labpc_private {
51 struct mite_struct *mite; /* for mite chip on pci-1200 */
52 volatile unsigned long long count; /* number of data points left to be taken */
53 unsigned int ao_value[NUM_AO_CHAN]; /* software copy of analog output values */
54 /* software copys of bits written to command registers */
55 volatile unsigned int command1_bits;
56 volatile unsigned int command2_bits;
57 volatile unsigned int command3_bits;
58 volatile unsigned int command4_bits;
59 volatile unsigned int command5_bits;
60 volatile unsigned int command6_bits;
61 /* store last read of board status registers */
62 volatile unsigned int status1_bits;
63 volatile unsigned int status2_bits;
64 unsigned int divisor_a0; /* value to load into board's counter a0 (conversion pacing) for timed conversions */
65 unsigned int divisor_b0; /* value to load into board's counter b0 (master) for timed conversions */
66 unsigned int divisor_b1; /* value to load into board's counter b1 (scan pacing) for timed conversions */
67 unsigned int dma_chan; /* dma channel to use */
68 u16 *dma_buffer; /* buffer ai will dma into */
69 unsigned int dma_transfer_size; /* transfer size in bytes for current transfer */
70 enum transfer_type current_transfer; /* we are using dma/fifo-half-full/etc. */
71 unsigned int eeprom_data[EEPROM_SIZE]; /* stores contents of board's eeprom */
72 unsigned int caldac[16]; /* stores settings of calibration dacs */
73 /* function pointers so we can use inb/outb or readb/writeb as appropriate */
74 unsigned int (*read_byte) (unsigned long address);
75 void (*write_byte) (unsigned int byte, unsigned long address);
78 int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
79 unsigned int irq, unsigned int dma);
80 int labpc_common_detach(struct comedi_device *dev);
82 extern const int labpc_1200_is_unipolar[];
83 extern const int labpc_1200_ai_gain_bits[];
84 extern const struct comedi_lrange range_labpc_1200_ai;
86 #endif /* _NI_LABPC_H */