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 19 #ifndef _NI_LABPC_H 20 #define _NI_LABPC_H 21 22 #define EEPROM_SIZE 256 /* 256 byte eeprom */ 23 #define NUM_AO_CHAN 2 /* boards have two analog output channels */ 24 25 enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, 26 isa_dma_transfer 27 }; 28 29 struct labpc_boardinfo { 30 const char *name; 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 }; 36 37 struct labpc_private { 38 struct comedi_isadma *dma; 39 struct comedi_8254 *counter; 40 41 /* number of data points left to be taken */ 42 unsigned long long count; 43 /* software copys of bits written to command registers */ 44 unsigned int cmd1; 45 unsigned int cmd2; 46 unsigned int cmd3; 47 unsigned int cmd4; 48 unsigned int cmd5; 49 unsigned int cmd6; 50 /* store last read of board status registers */ 51 unsigned int stat1; 52 unsigned int stat2; 53 54 /* we are using dma/fifo-half-full/etc. */ 55 enum transfer_type current_transfer; 56 /* 57 * function pointers so we can use inb/outb or readb/writeb as 58 * appropriate 59 */ 60 unsigned int (*read_byte)(struct comedi_device *, unsigned long reg); 61 void (*write_byte)(struct comedi_device *, 62 unsigned int byte, unsigned long reg); 63 }; 64 65 int labpc_common_attach(struct comedi_device *dev, 66 unsigned int irq, unsigned long isr_flags); 67 void labpc_common_detach(struct comedi_device *dev); 68 69 #endif /* _NI_LABPC_H */ 70