| /* |
| 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. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| |
| */ |
| |
| #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 labpc_bustype { isa_bustype, pci_bustype, pcmcia_bustype }; |
| enum labpc_register_layout { labpc_plus_layout, labpc_1200_layout }; |
| enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, |
| isa_dma_transfer }; |
| |
| typedef struct labpc_board_struct { |
| const char *name; |
| int device_id; // device id for pci and pcmcia boards |
| int ai_speed; // maximum input speed in nanoseconds |
| enum labpc_bustype bustype; // ISA/PCI/etc. |
| enum labpc_register_layout register_layout; // 1200 has extra registers compared to pc+ |
| int has_ao; // has analog output true/false |
| const struct comedi_lrange *ai_range_table; |
| const int *ai_range_code; |
| const int *ai_range_is_unipolar; |
| unsigned ai_scan_up:1; // board can auto scan up in ai channels, not just down |
| unsigned memory_mapped_io:1; /* uses memory mapped io instead of ioports */ |
| } labpc_board; |
| |
| typedef struct { |
| struct mite_struct *mite; // for mite chip on pci-1200 |
| volatile unsigned long long count; /* number of data points left to be taken */ |
| unsigned int ao_value[NUM_AO_CHAN]; // software copy of analog output values |
| // software copys of bits written to command registers |
| volatile unsigned int command1_bits; |
| volatile unsigned int command2_bits; |
| volatile unsigned int command3_bits; |
| volatile unsigned int command4_bits; |
| volatile unsigned int command5_bits; |
| volatile unsigned int command6_bits; |
| // store last read of board status registers |
| volatile unsigned int status1_bits; |
| volatile unsigned int status2_bits; |
| unsigned int divisor_a0; /* value to load into board's counter a0 (conversion pacing) for timed conversions */ |
| unsigned int divisor_b0; /* value to load into board's counter b0 (master) for timed conversions */ |
| unsigned int divisor_b1; /* value to load into board's counter b1 (scan pacing) for timed conversions */ |
| unsigned int dma_chan; // dma channel to use |
| u16 *dma_buffer; // buffer ai will dma into |
| unsigned int dma_transfer_size; // transfer size in bytes for current transfer |
| enum transfer_type current_transfer; // we are using dma/fifo-half-full/etc. |
| unsigned int eeprom_data[EEPROM_SIZE]; // stores contents of board's eeprom |
| unsigned int caldac[16]; // stores settings of calibration dacs |
| // function pointers so we can use inb/outb or readb/writeb as appropriate |
| unsigned int (*read_byte) (unsigned long address); |
| void (*write_byte) (unsigned int byte, unsigned long address); |
| } labpc_private; |
| |
| int labpc_common_attach(struct comedi_device * dev, unsigned long iobase, |
| unsigned int irq, unsigned int dma); |
| int labpc_common_detach(struct comedi_device * dev); |
| |
| extern const int labpc_1200_is_unipolar[]; |
| extern const int labpc_1200_ai_gain_bits[]; |
| extern const struct comedi_lrange range_labpc_1200_ai; |
| |
| #endif /* _NI_LABPC_H */ |