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.
22 #define EEPROM_SIZE 256 /* 256 byte eeprom */
23 #define NUM_AO_CHAN 2 /* boards have two analog output channels */
25 enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer,
29 struct labpc_boardinfo {
31 int ai_speed; /* maximum input speed in ns */
32 unsigned ai_scan_up:1; /* can auto scan up in ai channels */
33 unsigned has_ao:1; /* has analog outputs */
34 unsigned is_labpc1200:1; /* has extra regs compared to pc+ */
35 unsigned has_mmio:1; /* uses memory mapped io */
38 struct labpc_private {
39 struct mite_struct *mite; /* for mite chip on pci-1200 */
40 /* number of data points left to be taken */
41 unsigned long long count;
42 /* software copy of analog output values */
43 unsigned int ao_value[NUM_AO_CHAN];
44 /* software copys of bits written to command registers */
51 /* store last read of board status registers */
55 * value to load into board's counter a0 (conversion pacing) for timed
58 unsigned int divisor_a0;
60 * value to load into board's counter b0 (master) for timed conversions
62 unsigned int divisor_b0;
64 * value to load into board's counter b1 (scan pacing) for timed
67 unsigned int divisor_b1;
68 unsigned int dma_chan; /* dma channel to use */
69 u16 *dma_buffer; /* buffer ai will dma into */
71 /* transfer size in bytes for current transfer */
72 unsigned int dma_transfer_size;
73 /* we are using dma/fifo-half-full/etc. */
74 enum transfer_type current_transfer;
75 /* stores contents of board's eeprom */
76 unsigned int eeprom_data[EEPROM_SIZE];
77 /* stores settings of calibration dacs */
78 unsigned int caldac[16];
80 * function pointers so we can use inb/outb or readb/writeb as
83 unsigned int (*read_byte) (unsigned long address);
84 void (*write_byte) (unsigned int byte, unsigned long address);
87 int labpc_common_attach(struct comedi_device *dev,
88 unsigned int irq, unsigned long isr_flags);
90 #endif /* _NI_LABPC_H */