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/*
ni_labpc.h
Header for ni_labpc.c and ni_labpc_cs.c
Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _NI_LABPC_H
#define _NI_LABPC_H
#define EEPROM_SIZE 256 /* 256 byte eeprom */
#define NUM_AO_CHAN 2 /* boards have two analog output channels */
enum labpc_register_layout { labpc_plus_layout, labpc_1200_layout };
enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer,
isa_dma_transfer
};
struct labpc_boardinfo {
const char *name;
int device_id; /* device id for pci and pcmcia boards */
int ai_speed; /* maximum input speed in nanoseconds */
/* 1200 has extra registers compared to pc+ */
enum labpc_register_layout register_layout;
int has_ao; /* has analog output true/false */
const struct comedi_lrange *ai_range_table;
const int *ai_range_code;
/* board can auto scan up in ai channels, not just down */
unsigned ai_scan_up:1;
/* uses memory mapped io instead of ioports */
unsigned has_mmio:1;
};
struct labpc_private {
struct mite_struct *mite; /* for mite chip on pci-1200 */
/* number of data points left to be taken */
unsigned long long count;
/* software copy of analog output values */
unsigned int ao_value[NUM_AO_CHAN];
/* software copys of bits written to command registers */
unsigned int cmd1;
unsigned int cmd2;
unsigned int cmd3;
unsigned int cmd4;
unsigned int cmd5;
unsigned int cmd6;
/* store last read of board status registers */
unsigned int stat1;
unsigned int stat2;
/*
* value to load into board's counter a0 (conversion pacing) for timed
* conversions
*/
unsigned int divisor_a0;
/*
* value to load into board's counter b0 (master) for timed conversions
*/
unsigned int divisor_b0;
/*
* value to load into board's counter b1 (scan pacing) for timed
* conversions
*/
unsigned int divisor_b1;
unsigned int dma_chan; /* dma channel to use */
u16 *dma_buffer; /* buffer ai will dma into */
phys_addr_t dma_addr;
/* transfer size in bytes for current transfer */
unsigned int dma_transfer_size;
/* we are using dma/fifo-half-full/etc. */
enum transfer_type current_transfer;
/* stores contents of board's eeprom */
unsigned int eeprom_data[EEPROM_SIZE];
/* stores settings of calibration dacs */
unsigned int caldac[16];
/*
* function pointers so we can use inb/outb or readb/writeb as
* appropriate
*/
unsigned int (*read_byte) (unsigned long address);
void (*write_byte) (unsigned int byte, unsigned long address);
};
int labpc_common_attach(struct comedi_device *dev,
unsigned int irq, unsigned long isr_flags);
void labpc_common_detach(struct comedi_device *dev);
extern const int labpc_1200_ai_gain_bits[];
extern const struct comedi_lrange range_labpc_1200_ai;
#endif /* _NI_LABPC_H */
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