1/* 2 ni_labpc.h 3 4 Header for ni_labpc.c and ni_labpc_cs.c 5 6 Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net> 7 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. 12 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. 17 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. 21 22*/ 23 24#ifndef _NI_LABPC_H 25#define _NI_LABPC_H 26 27#define EEPROM_SIZE 256 /* 256 byte eeprom */ 28#define NUM_AO_CHAN 2 /* boards have two analog output channels */ 29 30enum labpc_bustype { isa_bustype, pci_bustype, pcmcia_bustype }; 31enum labpc_register_layout { labpc_plus_layout, labpc_1200_layout }; 32enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, 33 isa_dma_transfer 34}; 35 36struct labpc_board_struct { 37 const char *name; 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 */ 48}; 49 50struct 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); 76}; 77 78int labpc_common_attach(struct comedi_device *dev, unsigned long iobase, 79 unsigned int irq, unsigned int dma); 80int labpc_common_detach(struct comedi_device *dev); 81 82extern const int labpc_1200_is_unipolar[]; 83extern const int labpc_1200_ai_gain_bits[]; 84extern const struct comedi_lrange range_labpc_1200_ai; 85 86#endif /* _NI_LABPC_H */ 87