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_register_layout { labpc_plus_layout, labpc_1200_layout }; 31 enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, 32 isa_dma_transfer 33 }; 34 35 struct labpc_boardinfo { 36 const char *name; 37 int device_id; /* device id for pci and pcmcia boards */ 38 int ai_speed; /* maximum input speed in nanoseconds */ 39 40 /* 1200 has extra registers compared to pc+ */ 41 enum labpc_register_layout register_layout; 42 int has_ao; /* has analog output true/false */ 43 const struct comedi_lrange *ai_range_table; 44 const int *ai_range_code; 45 46 /* board can auto scan up in ai channels, not just down */ 47 unsigned ai_scan_up:1; 48 49 /* uses memory mapped io instead of ioports */ 50 unsigned has_mmio:1; 51 }; 52 53 struct labpc_private { 54 struct mite_struct *mite; /* for mite chip on pci-1200 */ 55 /* number of data points left to be taken */ 56 unsigned long long count; 57 /* software copy of analog output values */ 58 unsigned int ao_value[NUM_AO_CHAN]; 59 /* software copys of bits written to command registers */ 60 unsigned int cmd1; 61 unsigned int cmd2; 62 unsigned int cmd3; 63 unsigned int cmd4; 64 unsigned int cmd5; 65 unsigned int cmd6; 66 /* store last read of board status registers */ 67 unsigned int stat1; 68 unsigned int stat2; 69 /* 70 * value to load into board's counter a0 (conversion pacing) for timed 71 * conversions 72 */ 73 unsigned int divisor_a0; 74 /* 75 * value to load into board's counter b0 (master) for timed conversions 76 */ 77 unsigned int divisor_b0; 78 /* 79 * value to load into board's counter b1 (scan pacing) for timed 80 * conversions 81 */ 82 unsigned int divisor_b1; 83 unsigned int dma_chan; /* dma channel to use */ 84 u16 *dma_buffer; /* buffer ai will dma into */ 85 phys_addr_t dma_addr; 86 /* transfer size in bytes for current transfer */ 87 unsigned int dma_transfer_size; 88 /* we are using dma/fifo-half-full/etc. */ 89 enum transfer_type current_transfer; 90 /* stores contents of board's eeprom */ 91 unsigned int eeprom_data[EEPROM_SIZE]; 92 /* stores settings of calibration dacs */ 93 unsigned int caldac[16]; 94 /* 95 * function pointers so we can use inb/outb or readb/writeb as 96 * appropriate 97 */ 98 unsigned int (*read_byte) (unsigned long address); 99 void (*write_byte) (unsigned int byte, unsigned long address); 100 }; 101 102 int labpc_common_attach(struct comedi_device *dev, 103 unsigned int irq, unsigned long isr_flags); 104 void labpc_common_detach(struct comedi_device *dev); 105 106 extern const int labpc_1200_ai_gain_bits[]; 107 extern const struct comedi_lrange range_labpc_1200_ai; 108 109 #endif /* _NI_LABPC_H */ 110