[deliverable/linux.git] / drivers / staging / comedi / drivers / ni_labpc.h

/*
    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
};

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. */

	/*  1200 has extra registers compared to pc+ */
	enum labpc_register_layout register_layout;
	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;

	/*  board can auto scan up in ai channels, not just down */
	unsigned ai_scan_up:1;

	/* uses memory mapped io instead of ioports */
	unsigned memory_mapped_io:1;
};

struct labpc_private {
	struct mite_struct *mite;	/*  for mite chip on pci-1200 */
	/*  number of data points left to be taken */
	volatile unsigned long long count;
	/*  software copy of analog output values */
	unsigned int ao_value[NUM_AO_CHAN];
	/*  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;
	/*
	 * value to load into board's counter a0 (conversion pacing) for timed
	 * conversions
	 */
	unsigned int divisor_a0;
	/*
	 * value to load into board's counter b0 (master) for timed conversions
	 */
	unsigned int divisor_b0;
	/*
	 * value to load into board's counter b1 (scan pacing) for timed
	 * conversions
	 */
	unsigned int divisor_b1;
	unsigned int dma_chan;	/*  dma channel to use */
	u16 *dma_buffer;	/*  buffer ai will dma into */
	/* transfer size in bytes for current transfer */
	unsigned int dma_transfer_size;
	/* we are using dma/fifo-half-full/etc. */
	enum transfer_type current_transfer;
	/* stores contents of board's eeprom */
	unsigned int eeprom_data[EEPROM_SIZE];
	/* stores settings of calibration dacs */
	unsigned int caldac[16];
	/*
	 * 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);
};

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 */
Commit	Line	Data
124b13b2 FMH	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
2696fb57 BP	27	#define EEPROM_SIZE 256 /* 256 byte eeprom */
2696fb57 BP	28	#define NUM_AO_CHAN 2 /* boards have two analog output channels */
124b13b2 FMH	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,
0a85b6f0 MT	33	isa_dma_transfer
0a85b6f0 MT	34	};
124b13b2	35
9ad00740	36	struct labpc_board_struct {
124b13b2	37	const char *name;
2696fb57 BP	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. */
8642fc4e SW	41
	42	/* 1200 has extra registers compared to pc+ */
	43	enum labpc_register_layout register_layout;
2696fb57	44	int has_ao; /* has analog output true/false */
9ced1de6	45	const struct comedi_lrange *ai_range_table;
124b13b2 FMH	46	const int *ai_range_code;
124b13b2 FMH	47	const int *ai_range_is_unipolar;
8642fc4e SW	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;
9ad00740	54	};
124b13b2	55
0a4eb4b6	56	struct labpc_private {
2696fb57	57	struct mite_struct mite; / for mite chip on pci-1200 */
8642fc4e SW	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];
2696fb57	62	/* software copys of bits written to command registers */
124b13b2 FMH	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;
2696fb57	69	/* store last read of board status registers */
124b13b2 FMH	70	volatile unsigned int status1_bits;
124b13b2 FMH	71	volatile unsigned int status2_bits;
8642fc4e SW	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;
2696fb57 BP	86	unsigned int dma_chan; /* dma channel to use */
2696fb57 BP	87	u16 dma_buffer; / buffer ai will dma into */
8642fc4e SW	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	*/
124b13b2 FMH	100	unsigned int (*read_byte) (unsigned long address);
124b13b2 FMH	101	void (*write_byte) (unsigned int byte, unsigned long address);
0a4eb4b6	102	};
124b13b2	103
da91b269	104	int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
0a85b6f0	105	unsigned int irq, unsigned int dma);
da91b269	106	int labpc_common_detach(struct comedi_device *dev);
124b13b2 FMH	107
	108	extern const int labpc_1200_is_unipolar[];
	109	extern const int labpc_1200_ai_gain_bits[];
9ced1de6	110	extern const struct comedi_lrange range_labpc_1200_ai;
124b13b2 FMH	111
124b13b2 FMH	112	#endif /* _NI_LABPC_H */