| /* |
| 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. |
| */ |
| |
| #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 transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, |
| isa_dma_transfer |
| }; |
| |
| struct labpc_boardinfo { |
| const char *name; |
| int ai_speed; /* maximum input speed in ns */ |
| unsigned ai_scan_up:1; /* can auto scan up in ai channels */ |
| unsigned has_ao:1; /* has analog outputs */ |
| unsigned is_labpc1200:1; /* has extra regs compared to pc+ */ |
| }; |
| |
| struct labpc_private { |
| struct comedi_isadma *dma; |
| struct comedi_8254 *counter; |
| |
| /* number of data points left to be taken */ |
| unsigned long long count; |
| /* 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; |
| |
| /* we are using dma/fifo-half-full/etc. */ |
| enum transfer_type current_transfer; |
| /* |
| * function pointers so we can use inb/outb or readb/writeb as |
| * appropriate |
| */ |
| unsigned int (*read_byte)(struct comedi_device *, unsigned long reg); |
| void (*write_byte)(struct comedi_device *, |
| unsigned int byte, unsigned long reg); |
| }; |
| |
| int labpc_common_attach(struct comedi_device *dev, |
| unsigned int irq, unsigned long isr_flags); |
| void labpc_common_detach(struct comedi_device *dev); |
| |
| #endif /* _NI_LABPC_H */ |
