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 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, 33 isa_dma_transfer 34 }; 35 36 struct 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 42 /* 1200 has extra registers compared to pc+ */ 43 enum labpc_register_layout register_layout; 44 int has_ao; /* has analog output true/false */ 45 const struct comedi_lrange *ai_range_table; 46 const int *ai_range_code; 47 const int *ai_range_is_unipolar; 48 49 /* board can auto scan up in ai channels, not just down */ 50 unsigned ai_scan_up:1; 51 52 /* uses memory mapped io instead of ioports */ 53 unsigned memory_mapped_io:1; 54 }; 55 56 struct labpc_private { 57 struct mite_struct *mite; /* for mite chip on pci-1200 */ 58 /* number of data points left to be taken */ 59 volatile unsigned long long count; 60 /* software copy of analog output values */ 61 unsigned int ao_value[NUM_AO_CHAN]; 62 /* software copys of bits written to command registers */ 63 volatile unsigned int command1_bits; 64 volatile unsigned int command2_bits; 65 volatile unsigned int command3_bits; 66 volatile unsigned int command4_bits; 67 volatile unsigned int command5_bits; 68 volatile unsigned int command6_bits; 69 /* store last read of board status registers */ 70 volatile unsigned int status1_bits; 71 volatile unsigned int status2_bits; 72 /* 73 * value to load into board's counter a0 (conversion pacing) for timed 74 * conversions 75 */ 76 unsigned int divisor_a0; 77 /* 78 * value to load into board's counter b0 (master) for timed conversions 79 */ 80 unsigned int divisor_b0; 81 /* 82 * value to load into board's counter b1 (scan pacing) for timed 83 * conversions 84 */ 85 unsigned int divisor_b1; 86 unsigned int dma_chan; /* dma channel to use */ 87 u16 *dma_buffer; /* buffer ai will dma into */ 88 /* transfer size in bytes for current transfer */ 89 unsigned int dma_transfer_size; 90 /* we are using dma/fifo-half-full/etc. */ 91 enum transfer_type current_transfer; 92 /* stores contents of board's eeprom */ 93 unsigned int eeprom_data[EEPROM_SIZE]; 94 /* stores settings of calibration dacs */ 95 unsigned int caldac[16]; 96 /* 97 * function pointers so we can use inb/outb or readb/writeb as 98 * appropriate 99 */ 100 unsigned int (*read_byte) (unsigned long address); 101 void (*write_byte) (unsigned int byte, unsigned long address); 102 }; 103 104 int labpc_common_attach(struct comedi_device *dev, unsigned long iobase, 105 unsigned int irq, unsigned int dma); 106 int labpc_common_detach(struct comedi_device *dev); 107 108 extern const int labpc_1200_is_unipolar[]; 109 extern const int labpc_1200_ai_gain_bits[]; 110 extern const struct comedi_lrange range_labpc_1200_ai; 111 112 #endif /* _NI_LABPC_H */ 113