[deliverable/linux.git] / drivers / staging / comedi / drivers / ni_atmio.c

/*
    comedi/drivers/ni_atmio.c
    Hardware driver for NI AT-MIO E series cards

    COMEDI - Linux Control and Measurement Device Interface
    Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>

    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.
*/
/*
Driver: ni_atmio
Description: National Instruments AT-MIO-E series
Author: ds
Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio),
  AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3,
  AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10
Status: works
Updated: Thu May  1 20:03:02 CDT 2003

The driver has 2.6 kernel isapnp support, and
will automatically probe for a supported board if the
I/O base is left unspecified with comedi_config.
However, many of
the isapnp id numbers are unknown.  If your board is not
recognized, please send the output of 'cat /proc/isapnp'
(you may need to modprobe the isa-pnp module for
/proc/isapnp to exist) so the
id numbers for your board can be added to the driver.

Otherwise, you can use the isapnptools package to configure
your board.  Use isapnp to
configure the I/O base and IRQ for the board, and then pass
the same values as
parameters in comedi_config.  A sample isapnp.conf file is included
in the etc/ directory of Comedilib.

Comedilib includes a utility to autocalibrate these boards.  The
boards seem to boot into a state where the all calibration DACs
are at one extreme of their range, thus the default calibration
is terrible.  Calibration at boot is strongly encouraged.

To use the extended digital I/O on some of the boards, enable the
8255 driver when configuring the Comedi source tree.

External triggering is supported for some events.  The channel index
(scan_begin_arg, etc.) maps to PFI0 - PFI9.

Some of the more esoteric triggering possibilities of these boards
are not supported.
*/
/*
	The real guts of the driver is in ni_mio_common.c, which is included
	both here and in ni_pcimio.c

	Interrupt support added by Truxton Fulton <trux@truxton.com>

	References for specifications:

	   340747b.pdf  Register Level Programmer Manual (obsolete)
	   340747c.pdf  Register Level Programmer Manual (new)
	   DAQ-STC reference manual

	Other possibly relevant info:

	   320517c.pdf  User manual (obsolete)
	   320517f.pdf  User manual (new)
	   320889a.pdf  delete
	   320906c.pdf  maximum signal ratings
	   321066a.pdf  about 16x
	   321791a.pdf  discontinuation of at-mio-16e-10 rev. c
	   321808a.pdf  about at-mio-16e-10 rev P
	   321837a.pdf  discontinuation of at-mio-16de-10 rev d
	   321838a.pdf  about at-mio-16de-10 rev N

	ISSUES:

	need to deal with external reference for DAC, and other DAC
	properties in board properties

	deal with at-mio-16de-10 revision D to N changes, etc.

*/

#include "../comedidev.h"

#include <linux/delay.h>
#include <linux/isapnp.h>

#include "ni_stc.h"
#include "8255.h"

#undef DEBUG

#define ATMIO 1
#undef PCIMIO

/*
 *  AT specific setup
 */

#define NI_SIZE 0x20

#define MAX_N_CALDACS 32

static const ni_board ni_boards[] = {
      {device_id:44,
	      isapnp_id:0x0000,/* XXX unknown */
	      name:	"at-mio-16e-1",
	      n_adchan:16,
	      adbits:	12,
	      ai_fifo_depth:8192,
	      alwaysdither:0,
	      gainlkup:ai_gain_16,
	      ai_speed:800,
	      n_aochan:2,
	      aobits:	12,
	      ao_fifo_depth:2048,
			.ao_range_table = &range_ni_E_ao_ext,
	      ao_unipolar:1,
	      ao_speed:1000,
	      has_8255:0,
			.num_p0_dio_channels = 8,
	      caldac:	{mb88341},
		},
      {device_id:25,
	      isapnp_id:0x1900,
	      name:	"at-mio-16e-2",
	      n_adchan:16,
	      adbits:	12,
	      ai_fifo_depth:2048,
	      alwaysdither:0,
	      gainlkup:ai_gain_16,
	      ai_speed:2000,
	      n_aochan:2,
	      aobits:	12,
	      ao_fifo_depth:2048,
			.ao_range_table = &range_ni_E_ao_ext,
	      ao_unipolar:1,
	      ao_speed:1000,
	      has_8255:0,
			.num_p0_dio_channels = 8,
	      caldac:	{mb88341},
		},
      {device_id:36,
	      isapnp_id:0x2400,
	      name:	"at-mio-16e-10",
	      n_adchan:16,
	      adbits:	12,
	      ai_fifo_depth:512,
	      alwaysdither:0,
	      gainlkup:ai_gain_16,
	      ai_speed:10000,
	      n_aochan:2,
	      aobits:	12,
	      ao_fifo_depth:0,
			.ao_range_table = &range_ni_E_ao_ext,
	      ao_unipolar:1,
	      ao_speed:10000,
			.num_p0_dio_channels = 8,
	      caldac:	{ad8804_debug},
	      has_8255:0,
		},
      {device_id:37,
	      isapnp_id:0x2500,
	      name:	"at-mio-16de-10",
	      n_adchan:16,
	      adbits:	12,
	      ai_fifo_depth:512,
	      alwaysdither:0,
	      gainlkup:ai_gain_16,
	      ai_speed:10000,
	      n_aochan:2,
	      aobits:	12,
	      ao_fifo_depth:0,
			.ao_range_table = &range_ni_E_ao_ext,
	      ao_unipolar:1,
	      ao_speed:10000,
			.num_p0_dio_channels = 8,
	      caldac:	{ad8804_debug},
	      has_8255:1,
		},
      {device_id:38,
	      isapnp_id:0x2600,
	      name:	"at-mio-64e-3",
	      n_adchan:64,
	      adbits:	12,
	      ai_fifo_depth:2048,
	      alwaysdither:0,
	      gainlkup:ai_gain_16,
	      ai_speed:2000,
	      n_aochan:2,
	      aobits:	12,
	      ao_fifo_depth:2048,
			.ao_range_table = &range_ni_E_ao_ext,
	      ao_unipolar:1,
	      ao_speed:1000,
	      has_8255:0,
			.num_p0_dio_channels = 8,
	      caldac:	{ad8804_debug},
		},
      {device_id:39,
	      isapnp_id:0x2700,
	      name:	"at-mio-16xe-50",
	      n_adchan:16,
	      adbits:	16,
	      ai_fifo_depth:512,
	      alwaysdither:1,
	      gainlkup:ai_gain_8,
	      ai_speed:50000,
	      n_aochan:2,
	      aobits:	12,
	      ao_fifo_depth:0,
			.ao_range_table = &range_bipolar10,
	      ao_unipolar:0,
	      ao_speed:50000,
			.num_p0_dio_channels = 8,
	      caldac:	{dac8800, dac8043},
	      has_8255:0,
		},
      {device_id:50,
	      isapnp_id:0x0000,/* XXX unknown */
	      name:	"at-mio-16xe-10",
	      n_adchan:16,
	      adbits:	16,
	      ai_fifo_depth:512,
	      alwaysdither:1,
	      gainlkup:ai_gain_14,
	      ai_speed:10000,
	      n_aochan:2,
	      aobits:	16,
	      ao_fifo_depth:2048,
			.ao_range_table = &range_ni_E_ao_ext,
	      ao_unipolar:1,
	      ao_speed:1000,
			.num_p0_dio_channels = 8,
	      caldac:	{dac8800, dac8043, ad8522},
	      has_8255:0,
		},
      {device_id:51,
	      isapnp_id:0x0000,/* XXX unknown */
	      name:	"at-ai-16xe-10",
	      n_adchan:16,
	      adbits:	16,
	      ai_fifo_depth:512,
	      alwaysdither:1,	/* unknown */
	      gainlkup:ai_gain_14,
	      ai_speed:10000,
	      n_aochan:0,
	      aobits:	0,
	      ao_fifo_depth:0,
	      ao_unipolar:0,
			.num_p0_dio_channels = 8,
	      caldac:	{dac8800, dac8043, ad8522},
	      has_8255:0,
		}
};

static const int ni_irqpin[] =
	{ -1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7 };

#define interrupt_pin(a)	(ni_irqpin[(a)])

#define IRQ_POLARITY 0

#define NI_E_IRQ_FLAGS		0

typedef struct {
	struct pnp_dev *isapnp_dev;
 NI_PRIVATE_COMMON} ni_private;
#define devpriv ((ni_private *)dev->private)

/* How we access registers */

#define ni_writel(a,b)		(outl((a),(b)+dev->iobase))
#define ni_readl(a)		(inl((a)+dev->iobase))
#define ni_writew(a,b)		(outw((a),(b)+dev->iobase))
#define ni_readw(a)		(inw((a)+dev->iobase))
#define ni_writeb(a,b)		(outb((a),(b)+dev->iobase))
#define ni_readb(a)		(inb((a)+dev->iobase))

/* How we access windowed registers */

/* We automatically take advantage of STC registers that can be
 * read/written directly in the I/O space of the board.  The
 * AT-MIO devices map the low 8 STC registers to iobase+addr*2. */

static void ni_atmio_win_out(struct comedi_device * dev, uint16_t data, int addr)
{
	unsigned long flags;

	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
	if ((addr) < 8) {
		ni_writew(data, addr * 2);
	} else {
		ni_writew(addr, Window_Address);
		ni_writew(data, Window_Data);
	}
	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
}

static uint16_t ni_atmio_win_in(struct comedi_device * dev, int addr)
{
	unsigned long flags;
	uint16_t ret;

	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
	if (addr < 8) {
		ret = ni_readw(addr * 2);
	} else {
		ni_writew(addr, Window_Address);
		ret = ni_readw(Window_Data);
	}
	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);

	return ret;
}

static struct pnp_device_id device_ids[] = {
	{.id = "NIC1900",.driver_data = 0},
	{.id = "NIC2400",.driver_data = 0},
	{.id = "NIC2500",.driver_data = 0},
	{.id = "NIC2600",.driver_data = 0},
	{.id = "NIC2700",.driver_data = 0},
	{.id = ""}
};

MODULE_DEVICE_TABLE(pnp, device_ids);

static int ni_atmio_attach(struct comedi_device * dev, struct comedi_devconfig * it);
static int ni_atmio_detach(struct comedi_device * dev);
static struct comedi_driver driver_atmio = {
      driver_name:"ni_atmio",
      module:THIS_MODULE,
      attach:ni_atmio_attach,
      detach:ni_atmio_detach,
};

COMEDI_INITCLEANUP(driver_atmio);

#include "ni_mio_common.c"

static int ni_getboardtype(struct comedi_device * dev);

/* clean up allocated resources */
static int ni_atmio_detach(struct comedi_device * dev)
{
	mio_common_detach(dev);

	if (dev->iobase)
		release_region(dev->iobase, NI_SIZE);
	if (dev->irq) {
		comedi_free_irq(dev->irq, dev);
	}
	if (devpriv->isapnp_dev)
		pnp_device_detach(devpriv->isapnp_dev);

	return 0;
}

static int ni_isapnp_find_board(struct pnp_dev **dev)
{
	struct pnp_dev *isapnp_dev = NULL;
	int i;

	for (i = 0; i < n_ni_boards; i++) {
		isapnp_dev = pnp_find_dev(NULL,
			ISAPNP_VENDOR('N', 'I', 'C'),
			ISAPNP_FUNCTION(ni_boards[i].isapnp_id), NULL);

		if (isapnp_dev == NULL || isapnp_dev->card == NULL)
			continue;

		if (pnp_device_attach(isapnp_dev) < 0) {
			printk("ni_atmio: %s found but already active, skipping.\n", ni_boards[i].name);
			continue;
		}
		if (pnp_activate_dev(isapnp_dev) < 0) {
			pnp_device_detach(isapnp_dev);
			return -EAGAIN;
		}
		if (!pnp_port_valid(isapnp_dev, 0)
			|| !pnp_irq_valid(isapnp_dev, 0)) {
			pnp_device_detach(isapnp_dev);
			printk("ni_atmio: pnp invalid port or irq, aborting\n");
			return -ENOMEM;
		}
		break;
	}
	if (i == n_ni_boards)
		return -ENODEV;
	*dev = isapnp_dev;
	return 0;
}

static int ni_atmio_attach(struct comedi_device * dev, struct comedi_devconfig * it)
{
	struct pnp_dev *isapnp_dev;
	int ret;
	unsigned long iobase;
	int board;
	unsigned int irq;

	/* allocate private area */
	if ((ret = ni_alloc_private(dev)) < 0)
		return ret;
	devpriv->stc_writew = &ni_atmio_win_out;
	devpriv->stc_readw = &ni_atmio_win_in;
	devpriv->stc_writel = &win_out2;
	devpriv->stc_readl = &win_in2;

	iobase = it->options[0];
	irq = it->options[1];
	isapnp_dev = NULL;
	if (iobase == 0) {
		ret = ni_isapnp_find_board(&isapnp_dev);
		if (ret < 0)
			return ret;

		iobase = pnp_port_start(isapnp_dev, 0);
		irq = pnp_irq(isapnp_dev, 0);
		devpriv->isapnp_dev = isapnp_dev;
	}

	/* reserve our I/O region */

	printk("comedi%d: ni_atmio: 0x%04lx", dev->minor, iobase);
	if (!request_region(iobase, NI_SIZE, "ni_atmio")) {
		printk(" I/O port conflict\n");
		return -EIO;
	}

	dev->iobase = iobase;

#ifdef DEBUG
	/* board existence sanity check */
	{
		int i;

		printk(" board fingerprint:");
		for (i = 0; i < 16; i += 2) {
			printk(" %04x %02x", inw(dev->iobase + i),
				inb(dev->iobase + i + 1));
		}
	}
#endif

	/* get board type */

	board = ni_getboardtype(dev);
	if (board < 0)
		return -EIO;

	dev->board_ptr = ni_boards + board;

	printk(" %s", boardtype.name);
	dev->board_name = boardtype.name;

	/* irq stuff */

	if (irq != 0) {
		if (irq > 15 || ni_irqpin[irq] == -1) {
			printk(" invalid irq %u\n", irq);
			return -EINVAL;
		}
		printk(" ( irq = %u )", irq);
		if ((ret = comedi_request_irq(irq, ni_E_interrupt,
					NI_E_IRQ_FLAGS, "ni_atmio", dev)) < 0) {
			printk(" irq not available\n");
			return -EINVAL;
		}
		dev->irq = irq;
	}

	/* generic E series stuff in ni_mio_common.c */

	if ((ret = ni_E_init(dev, it)) < 0) {
		return ret;
	}

	return 0;
}

static int ni_getboardtype(struct comedi_device * dev)
{
	int device_id = ni_read_eeprom(dev, 511);
	int i;

	for (i = 0; i < n_ni_boards; i++) {
		if (ni_boards[i].device_id == device_id) {
			return i;
		}
	}
	if (device_id == 255) {
		printk(" can't find board\n");
	} else if (device_id == 0) {
		printk(" EEPROM read error (?) or device not found\n");
	} else {
		printk(" unknown device ID %d -- contact author\n", device_id);
	}
	return -1;
}
Commit	Line	Data
a8b77430 DS	1	/*
	2	comedi/drivers/ni_atmio.c
	3	Hardware driver for NI AT-MIO E series cards
	4
	5	COMEDI - Linux Control and Measurement Device Interface
	6	Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
	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	Driver: ni_atmio
	24	Description: National Instruments AT-MIO-E series
	25	Author: ds
	26	Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio),
	27	AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3,
	28	AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10
	29	Status: works
	30	Updated: Thu May 1 20:03:02 CDT 2003
	31
	32	The driver has 2.6 kernel isapnp support, and
	33	will automatically probe for a supported board if the
	34	I/O base is left unspecified with comedi_config.
	35	However, many of
	36	the isapnp id numbers are unknown. If your board is not
	37	recognized, please send the output of 'cat /proc/isapnp'
	38	(you may need to modprobe the isa-pnp module for
	39	/proc/isapnp to exist) so the
	40	id numbers for your board can be added to the driver.
	41
	42	Otherwise, you can use the isapnptools package to configure
	43	your board. Use isapnp to
	44	configure the I/O base and IRQ for the board, and then pass
	45	the same values as
	46	parameters in comedi_config. A sample isapnp.conf file is included
	47	in the etc/ directory of Comedilib.
	48
	49	Comedilib includes a utility to autocalibrate these boards. The
	50	boards seem to boot into a state where the all calibration DACs
	51	are at one extreme of their range, thus the default calibration
	52	is terrible. Calibration at boot is strongly encouraged.
	53
	54	To use the extended digital I/O on some of the boards, enable the
	55	8255 driver when configuring the Comedi source tree.
	56
	57	External triggering is supported for some events. The channel index
	58	(scan_begin_arg, etc.) maps to PFI0 - PFI9.
	59
	60	Some of the more esoteric triggering possibilities of these boards
	61	are not supported.
	62	*/
	63	/*
	64	The real guts of the driver is in ni_mio_common.c, which is included
65	both here and in ni_pcimio.c
66
67	Interrupt support added by Truxton Fulton <trux@truxton.com>
68
69	References for specifications:
70
71	340747b.pdf Register Level Programmer Manual (obsolete)
72	340747c.pdf Register Level Programmer Manual (new)
73	DAQ-STC reference manual
74
75	Other possibly relevant info:
76
77	320517c.pdf User manual (obsolete)
78	320517f.pdf User manual (new)
79	320889a.pdf delete
80	320906c.pdf maximum signal ratings
81	321066a.pdf about 16x
82	321791a.pdf discontinuation of at-mio-16e-10 rev. c
83	321808a.pdf about at-mio-16e-10 rev P
84	321837a.pdf discontinuation of at-mio-16de-10 rev d
85	321838a.pdf about at-mio-16de-10 rev N
86
87	ISSUES:
88
89	need to deal with external reference for DAC, and other DAC
90	properties in board properties
91
92	deal with at-mio-16de-10 revision D to N changes, etc.
93
94	*/
95
96	#include "../comedidev.h"
97
98	#include <linux/delay.h>
99	#include <linux/isapnp.h>
100
101	#include "ni_stc.h"
102	#include "8255.h"
103
104	#undef DEBUG
105
106	#define ATMIO 1
107	#undef PCIMIO
108
109	/*
110	* AT specific setup
111	*/
112
113	#define NI_SIZE 0x20
114
115	#define MAX_N_CALDACS 32
116
117	static const ni_board ni_boards[] = {
118	{device_id:44,
119	isapnp_id:0x0000,/* XXX unknown */
120	name: "at-mio-16e-1",
121	n_adchan:16,
122	adbits: 12,
123	ai_fifo_depth:8192,
124	alwaysdither:0,
125	gainlkup:ai_gain_16,
126	ai_speed:800,
127	n_aochan:2,
128	aobits: 12,
129	ao_fifo_depth:2048,
130	.ao_range_table = &range_ni_E_ao_ext,
131	ao_unipolar:1,
132	ao_speed:1000,
133	has_8255:0,
134	.num_p0_dio_channels = 8,
135	caldac: {mb88341},
136	},
137	{device_id:25,
138	isapnp_id:0x1900,
139	name: "at-mio-16e-2",
140	n_adchan:16,
141	adbits: 12,
142	ai_fifo_depth:2048,
143	alwaysdither:0,
144	gainlkup:ai_gain_16,
145	ai_speed:2000,
146	n_aochan:2,
147	aobits: 12,
148	ao_fifo_depth:2048,
149	.ao_range_table = &range_ni_E_ao_ext,
150	ao_unipolar:1,
151	ao_speed:1000,
152	has_8255:0,
153	.num_p0_dio_channels = 8,
154	caldac: {mb88341},
155	},
156	{device_id:36,
157	isapnp_id:0x2400,
158	name: "at-mio-16e-10",
159	n_adchan:16,
160	adbits: 12,
161	ai_fifo_depth:512,
162	alwaysdither:0,
163	gainlkup:ai_gain_16,
164	ai_speed:10000,
165	n_aochan:2,
166	aobits: 12,
167	ao_fifo_depth:0,
168	.ao_range_table = &range_ni_E_ao_ext,
169	ao_unipolar:1,
170	ao_speed:10000,
171	.num_p0_dio_channels = 8,
172	caldac: {ad8804_debug},
173	has_8255:0,
174	},
175	{device_id:37,
176	isapnp_id:0x2500,
177	name: "at-mio-16de-10",
178	n_adchan:16,
179	adbits: 12,
180	ai_fifo_depth:512,
181	alwaysdither:0,
182	gainlkup:ai_gain_16,
183	ai_speed:10000,
184	n_aochan:2,
185	aobits: 12,
186	ao_fifo_depth:0,
187	.ao_range_table = &range_ni_E_ao_ext,
188	ao_unipolar:1,
189	ao_speed:10000,
190	.num_p0_dio_channels = 8,
191	caldac: {ad8804_debug},
192	has_8255:1,
193	},
194	{device_id:38,
195	isapnp_id:0x2600,
196	name: "at-mio-64e-3",
197	n_adchan:64,
198	adbits: 12,
199	ai_fifo_depth:2048,
200	alwaysdither:0,
201	gainlkup:ai_gain_16,
202	ai_speed:2000,
203	n_aochan:2,
204	aobits: 12,
205	ao_fifo_depth:2048,
206	.ao_range_table = &range_ni_E_ao_ext,
207	ao_unipolar:1,
208	ao_speed:1000,
209	has_8255:0,
210	.num_p0_dio_channels = 8,
211	caldac: {ad8804_debug},
212	},
213	{device_id:39,
214	isapnp_id:0x2700,
215	name: "at-mio-16xe-50",
216	n_adchan:16,
217	adbits: 16,
218	ai_fifo_depth:512,
219	alwaysdither:1,
220	gainlkup:ai_gain_8,
221	ai_speed:50000,
222	n_aochan:2,
223	aobits: 12,
224	ao_fifo_depth:0,
225	.ao_range_table = &range_bipolar10,
226	ao_unipolar:0,
227	ao_speed:50000,
228	.num_p0_dio_channels = 8,
229	caldac: {dac8800, dac8043},
230	has_8255:0,
231	},
232	{device_id:50,
233	isapnp_id:0x0000,/* XXX unknown */
234	name: "at-mio-16xe-10",
235	n_adchan:16,
236	adbits: 16,
237	ai_fifo_depth:512,
238	alwaysdither:1,
239	gainlkup:ai_gain_14,
240	ai_speed:10000,
241	n_aochan:2,
242	aobits: 16,
243	ao_fifo_depth:2048,
244	.ao_range_table = &range_ni_E_ao_ext,
245	ao_unipolar:1,
246	ao_speed:1000,
247	.num_p0_dio_channels = 8,
248	caldac: {dac8800, dac8043, ad8522},
249	has_8255:0,
250	},
251	{device_id:51,
252	isapnp_id:0x0000,/* XXX unknown */
253	name: "at-ai-16xe-10",
254	n_adchan:16,
255	adbits: 16,
256	ai_fifo_depth:512,
257	alwaysdither:1, /* unknown */
258	gainlkup:ai_gain_14,
259	ai_speed:10000,
260	n_aochan:0,
261	aobits: 0,
262	ao_fifo_depth:0,
263	ao_unipolar:0,
264	.num_p0_dio_channels = 8,
265	caldac: {dac8800, dac8043, ad8522},
266	has_8255:0,
267	}
268	};
269
270	static const int ni_irqpin[] =
271	{ -1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7 };
272
273	#define interrupt_pin(a) (ni_irqpin[(a)])
274
275	#define IRQ_POLARITY 0
276
277	#define NI_E_IRQ_FLAGS 0
278
279	typedef struct {
280	struct pnp_dev *isapnp_dev;
281	NI_PRIVATE_COMMON} ni_private;
282	#define devpriv ((ni_private *)dev->private)
283
284	/* How we access registers */
285
286	#define ni_writel(a,b) (outl((a),(b)+dev->iobase))
287	#define ni_readl(a) (inl((a)+dev->iobase))
288	#define ni_writew(a,b) (outw((a),(b)+dev->iobase))
289	#define ni_readw(a) (inw((a)+dev->iobase))
290	#define ni_writeb(a,b) (outb((a),(b)+dev->iobase))
291	#define ni_readb(a) (inb((a)+dev->iobase))
292
293	/* How we access windowed registers */
294
295	/* We automatically take advantage of STC registers that can be
296	* read/written directly in the I/O space of the board. The
297	* AT-MIO devices map the low 8 STC registers to iobase+addr2. /
298
71b5f4f1	299	static void ni_atmio_win_out(struct comedi_device * dev, uint16_t data, int addr)
a8b77430 DS	300	{
	301	unsigned long flags;
	302
	303	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
	304	if ((addr) < 8) {
	305	ni_writew(data, addr * 2);
	306	} else {
	307	ni_writew(addr, Window_Address);
	308	ni_writew(data, Window_Data);
	309	}
	310	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
	311	}
	312
71b5f4f1	313	static uint16_t ni_atmio_win_in(struct comedi_device * dev, int addr)
a8b77430 DS	314	{
	315	unsigned long flags;
	316	uint16_t ret;
	317
	318	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
	319	if (addr < 8) {
	320	ret = ni_readw(addr * 2);
	321	} else {
	322	ni_writew(addr, Window_Address);
	323	ret = ni_readw(Window_Data);
	324	}
	325	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
	326
	327	return ret;
	328	}
	329
	330	static struct pnp_device_id device_ids[] = {
	331	{.id = "NIC1900",.driver_data = 0},
	332	{.id = "NIC2400",.driver_data = 0},
	333	{.id = "NIC2500",.driver_data = 0},
	334	{.id = "NIC2600",.driver_data = 0},
	335	{.id = "NIC2700",.driver_data = 0},
	336	{.id = ""}
	337	};
	338
	339	MODULE_DEVICE_TABLE(pnp, device_ids);
	340
0707bb04	341	static int ni_atmio_attach(struct comedi_device * dev, struct comedi_devconfig * it);
71b5f4f1	342	static int ni_atmio_detach(struct comedi_device * dev);
139dfbdf	343	static struct comedi_driver driver_atmio = {
a8b77430 DS	344	driver_name:"ni_atmio",
	345	module:THIS_MODULE,
	346	attach:ni_atmio_attach,
	347	detach:ni_atmio_detach,
	348	};
	349
	350	COMEDI_INITCLEANUP(driver_atmio);
	351
	352	#include "ni_mio_common.c"
	353
71b5f4f1	354	static int ni_getboardtype(struct comedi_device * dev);
a8b77430 DS	355
a8b77430 DS	356	/* clean up allocated resources */
71b5f4f1	357	static int ni_atmio_detach(struct comedi_device * dev)
a8b77430 DS	358	{
	359	mio_common_detach(dev);
	360
	361	if (dev->iobase)
	362	release_region(dev->iobase, NI_SIZE);
	363	if (dev->irq) {
	364	comedi_free_irq(dev->irq, dev);
	365	}
	366	if (devpriv->isapnp_dev)
	367	pnp_device_detach(devpriv->isapnp_dev);
	368
	369	return 0;
	370	}
	371
	372	static int ni_isapnp_find_board(struct pnp_dev **dev)
	373	{
	374	struct pnp_dev *isapnp_dev = NULL;
	375	int i;
	376
	377	for (i = 0; i < n_ni_boards; i++) {
	378	isapnp_dev = pnp_find_dev(NULL,
	379	ISAPNP_VENDOR('N', 'I', 'C'),
	380	ISAPNP_FUNCTION(ni_boards[i].isapnp_id), NULL);
	381
	382	if (isapnp_dev == NULL \|\| isapnp_dev->card == NULL)
	383	continue;
	384
	385	if (pnp_device_attach(isapnp_dev) < 0) {
	386	printk("ni_atmio: %s found but already active, skipping.\n", ni_boards[i].name);
	387	continue;
	388	}
	389	if (pnp_activate_dev(isapnp_dev) < 0) {
	390	pnp_device_detach(isapnp_dev);
	391	return -EAGAIN;
	392	}
	393	if (!pnp_port_valid(isapnp_dev, 0)
	394	\|\| !pnp_irq_valid(isapnp_dev, 0)) {
	395	pnp_device_detach(isapnp_dev);
	396	printk("ni_atmio: pnp invalid port or irq, aborting\n");
	397	return -ENOMEM;
	398	}
	399	break;
	400	}
	401	if (i == n_ni_boards)
	402	return -ENODEV;
	403	*dev = isapnp_dev;
	404	return 0;
	405	}
	406
0707bb04	407	static int ni_atmio_attach(struct comedi_device * dev, struct comedi_devconfig * it)
a8b77430 DS	408	{
	409	struct pnp_dev *isapnp_dev;
	410	int ret;
	411	unsigned long iobase;
	412	int board;
	413	unsigned int irq;
	414
	415	/* allocate private area */
	416	if ((ret = ni_alloc_private(dev)) < 0)
	417	return ret;
	418	devpriv->stc_writew = &ni_atmio_win_out;
	419	devpriv->stc_readw = &ni_atmio_win_in;
	420	devpriv->stc_writel = &win_out2;
	421	devpriv->stc_readl = &win_in2;
	422
	423	iobase = it->options[0];
	424	irq = it->options[1];
	425	isapnp_dev = NULL;
	426	if (iobase == 0) {
	427	ret = ni_isapnp_find_board(&isapnp_dev);
	428	if (ret < 0)
	429	return ret;
	430
	431	iobase = pnp_port_start(isapnp_dev, 0);
	432	irq = pnp_irq(isapnp_dev, 0);
	433	devpriv->isapnp_dev = isapnp_dev;
	434	}
	435
	436	/* reserve our I/O region */
	437
	438	printk("comedi%d: ni_atmio: 0x%04lx", dev->minor, iobase);
	439	if (!request_region(iobase, NI_SIZE, "ni_atmio")) {
	440	printk(" I/O port conflict\n");
	441	return -EIO;
	442	}
	443
	444	dev->iobase = iobase;
	445
	446	#ifdef DEBUG
	447	/* board existence sanity check */
	448	{
	449	int i;
	450
	451	printk(" board fingerprint:");
	452	for (i = 0; i < 16; i += 2) {
	453	printk(" %04x %02x", inw(dev->iobase + i),
	454	inb(dev->iobase + i + 1));
	455	}
	456	}
	457	#endif
	458
	459	/* get board type */
	460
	461	board = ni_getboardtype(dev);
	462	if (board < 0)
	463	return -EIO;
	464
	465	dev->board_ptr = ni_boards + board;
	466
	467	printk(" %s", boardtype.name);
	468	dev->board_name = boardtype.name;
	469
	470	/* irq stuff */
	471
472	if (irq != 0) {
473	if (irq > 15 \|\| ni_irqpin[irq] == -1) {
474	printk(" invalid irq %u\n", irq);
475	return -EINVAL;
476	}
477	printk(" ( irq = %u )", irq);
478	if ((ret = comedi_request_irq(irq, ni_E_interrupt,
479	NI_E_IRQ_FLAGS, "ni_atmio", dev)) < 0) {
480	printk(" irq not available\n");
481	return -EINVAL;
482	}
483	dev->irq = irq;
484	}
485
486	/* generic E series stuff in ni_mio_common.c */
487
488	if ((ret = ni_E_init(dev, it)) < 0) {
489	return ret;
490	}
491
492	return 0;
493	}
494
71b5f4f1	495	static int ni_getboardtype(struct comedi_device * dev)
a8b77430 DS	496	{
	497	int device_id = ni_read_eeprom(dev, 511);
	498	int i;
	499
	500	for (i = 0; i < n_ni_boards; i++) {
	501	if (ni_boards[i].device_id == device_id) {
	502	return i;
	503	}
	504	}
	505	if (device_id == 255) {
	506	printk(" can't find board\n");
	507	} else if (device_id == 0) {
	508	printk(" EEPROM read error (?) or device not found\n");
	509	} else {
	510	printk(" unknown device ID %d -- contact author\n", device_id);
	511	}
	512	return -1;
	513	}