2 comedi/drivers/ni_670x.c
3 Hardware driver for NI 670x devices
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
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.
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.
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.
25 Description: National Instruments 670x
26 Author: Bart Joris <bjoris@advalvas.be>
27 Updated: Wed, 11 Dec 2002 18:25:35 -0800
28 Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704
31 Commands are not supported.
35 Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001
39 322110a.pdf PCI/PXI-6704 User Manual
40 322110b.pdf PCI/PXI-6703/6704 User Manual
44 #include <linux/interrupt.h>
45 #include <linux/slab.h>
46 #include "../comedidev.h"
50 #define AO_VALUE_OFFSET 0x00
51 #define AO_CHAN_OFFSET 0x0c
52 #define AO_STATUS_OFFSET 0x10
53 #define AO_CONTROL_OFFSET 0x10
54 #define DIO_PORT0_DIR_OFFSET 0x20
55 #define DIO_PORT0_DATA_OFFSET 0x24
56 #define DIO_PORT1_DIR_OFFSET 0x28
57 #define DIO_PORT1_DATA_OFFSET 0x2c
58 #define MISC_STATUS_OFFSET 0x14
59 #define MISC_CONTROL_OFFSET 0x14
61 /* Board description*/
63 struct ni_670x_board
{
64 unsigned short dev_id
;
66 unsigned short ao_chans
;
67 unsigned short ao_bits
;
70 static const struct ni_670x_board ni_670x_boards
[] = {
91 static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table
) = {
92 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x2c90)},
93 {PCI_DEVICE(PCI_VENDOR_ID_NI
, 0x1920)},
97 MODULE_DEVICE_TABLE(pci
, ni_670x_pci_table
);
99 #define thisboard ((struct ni_670x_board *)dev->board_ptr)
101 struct ni_670x_private
{
103 struct mite_struct
*mite
;
106 unsigned int ao_readback
[32];
109 #define devpriv ((struct ni_670x_private *)dev->private)
110 #define n_ni_670x_boards ARRAY_SIZE(ni_670x_boards)
112 static int ni_670x_attach(struct comedi_device
*dev
,
113 struct comedi_devconfig
*it
);
114 static int ni_670x_detach(struct comedi_device
*dev
);
116 static struct comedi_driver driver_ni_670x
= {
117 .driver_name
= "ni_670x",
118 .module
= THIS_MODULE
,
119 .attach
= ni_670x_attach
,
120 .detach
= ni_670x_detach
,
123 static int __devinit
driver_ni_670x_pci_probe(struct pci_dev
*dev
,
124 const struct pci_device_id
*ent
)
126 return comedi_pci_auto_config(dev
, driver_ni_670x
.driver_name
);
129 static void __devexit
driver_ni_670x_pci_remove(struct pci_dev
*dev
)
131 comedi_pci_auto_unconfig(dev
);
134 static struct pci_driver driver_ni_670x_pci_driver
= {
135 .id_table
= ni_670x_pci_table
,
136 .probe
= &driver_ni_670x_pci_probe
,
137 .remove
= __devexit_p(&driver_ni_670x_pci_remove
)
140 static int __init
driver_ni_670x_init_module(void)
144 retval
= comedi_driver_register(&driver_ni_670x
);
148 driver_ni_670x_pci_driver
.name
= (char *)driver_ni_670x
.driver_name
;
149 return pci_register_driver(&driver_ni_670x_pci_driver
);
152 static void __exit
driver_ni_670x_cleanup_module(void)
154 pci_unregister_driver(&driver_ni_670x_pci_driver
);
155 comedi_driver_unregister(&driver_ni_670x
);
158 module_init(driver_ni_670x_init_module
);
159 module_exit(driver_ni_670x_cleanup_module
);
161 static struct comedi_lrange range_0_20mA
= { 1, {RANGE_mA(0, 20)} };
163 static int ni_670x_find_device(struct comedi_device
*dev
, int bus
, int slot
);
165 static int ni_670x_ao_winsn(struct comedi_device
*dev
,
166 struct comedi_subdevice
*s
,
167 struct comedi_insn
*insn
, unsigned int *data
);
168 static int ni_670x_ao_rinsn(struct comedi_device
*dev
,
169 struct comedi_subdevice
*s
,
170 struct comedi_insn
*insn
, unsigned int *data
);
171 static int ni_670x_dio_insn_bits(struct comedi_device
*dev
,
172 struct comedi_subdevice
*s
,
173 struct comedi_insn
*insn
, unsigned int *data
);
174 static int ni_670x_dio_insn_config(struct comedi_device
*dev
,
175 struct comedi_subdevice
*s
,
176 struct comedi_insn
*insn
,
179 static int ni_670x_attach(struct comedi_device
*dev
,
180 struct comedi_devconfig
*it
)
182 struct comedi_subdevice
*s
;
186 printk(KERN_INFO
"comedi%d: ni_670x: ", dev
->minor
);
188 ret
= alloc_private(dev
, sizeof(struct ni_670x_private
));
192 ret
= ni_670x_find_device(dev
, it
->options
[0], it
->options
[1]);
196 ret
= mite_setup(devpriv
->mite
);
198 printk(KERN_WARNING
"error setting up mite\n");
201 dev
->board_name
= thisboard
->name
;
202 dev
->irq
= mite_irq(devpriv
->mite
);
203 printk(KERN_INFO
" %s", dev
->board_name
);
205 if (alloc_subdevices(dev
, 2) < 0)
208 s
= dev
->subdevices
+ 0;
209 /* analog output subdevice */
210 s
->type
= COMEDI_SUBD_AO
;
211 s
->subdev_flags
= SDF_WRITABLE
;
212 s
->n_chan
= thisboard
->ao_chans
;
214 if (s
->n_chan
== 32) {
215 const struct comedi_lrange
**range_table_list
;
217 range_table_list
= kmalloc(sizeof(struct comedi_lrange
*) * 32,
219 if (!range_table_list
)
221 s
->range_table_list
= range_table_list
;
222 for (i
= 0; i
< 16; i
++) {
223 range_table_list
[i
] = &range_bipolar10
;
224 range_table_list
[16 + i
] = &range_0_20mA
;
227 s
->range_table
= &range_bipolar10
;
229 s
->insn_write
= &ni_670x_ao_winsn
;
230 s
->insn_read
= &ni_670x_ao_rinsn
;
232 s
= dev
->subdevices
+ 1;
233 /* digital i/o subdevice */
234 s
->type
= COMEDI_SUBD_DIO
;
235 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
;
238 s
->range_table
= &range_digital
;
239 s
->insn_bits
= ni_670x_dio_insn_bits
;
240 s
->insn_config
= ni_670x_dio_insn_config
;
242 /* Config of misc registers */
243 writel(0x10, devpriv
->mite
->daq_io_addr
+ MISC_CONTROL_OFFSET
);
244 /* Config of ao registers */
245 writel(0x00, devpriv
->mite
->daq_io_addr
+ AO_CONTROL_OFFSET
);
247 printk(KERN_INFO
"attached\n");
252 static int ni_670x_detach(struct comedi_device
*dev
)
254 printk(KERN_INFO
"comedi%d: ni_670x: remove\n", dev
->minor
);
256 kfree(dev
->subdevices
[0].range_table_list
);
258 if (dev
->private && devpriv
->mite
)
259 mite_unsetup(devpriv
->mite
);
262 free_irq(dev
->irq
, dev
);
267 static int ni_670x_ao_winsn(struct comedi_device
*dev
,
268 struct comedi_subdevice
*s
,
269 struct comedi_insn
*insn
, unsigned int *data
)
272 int chan
= CR_CHAN(insn
->chanspec
);
274 /* Channel number mapping :
276 NI 6703/ NI 6704 | NI 6704 Only
277 ----------------------------------------------------
278 vch(0) : 0 | ich(16) : 1
279 vch(1) : 2 | ich(17) : 3
283 vch(15) : 30 | ich(31) : 31 */
285 for (i
= 0; i
< insn
->n
; i
++) {
286 /* First write in channel register which channel to use */
287 writel(((chan
& 15) << 1) | ((chan
& 16) >> 4),
288 devpriv
->mite
->daq_io_addr
+ AO_CHAN_OFFSET
);
289 /* write channel value */
290 writel(data
[i
], devpriv
->mite
->daq_io_addr
+ AO_VALUE_OFFSET
);
291 devpriv
->ao_readback
[chan
] = data
[i
];
297 static int ni_670x_ao_rinsn(struct comedi_device
*dev
,
298 struct comedi_subdevice
*s
,
299 struct comedi_insn
*insn
, unsigned int *data
)
302 int chan
= CR_CHAN(insn
->chanspec
);
304 for (i
= 0; i
< insn
->n
; i
++)
305 data
[i
] = devpriv
->ao_readback
[chan
];
310 static int ni_670x_dio_insn_bits(struct comedi_device
*dev
,
311 struct comedi_subdevice
*s
,
312 struct comedi_insn
*insn
, unsigned int *data
)
317 /* The insn data is a mask in data[0] and the new data
318 * in data[1], each channel cooresponding to a bit. */
320 s
->state
&= ~data
[0];
321 s
->state
|= data
[0] & data
[1];
323 devpriv
->mite
->daq_io_addr
+ DIO_PORT0_DATA_OFFSET
);
326 /* on return, data[1] contains the value of the digital
328 data
[1] = readl(devpriv
->mite
->daq_io_addr
+ DIO_PORT0_DATA_OFFSET
);
333 static int ni_670x_dio_insn_config(struct comedi_device
*dev
,
334 struct comedi_subdevice
*s
,
335 struct comedi_insn
*insn
, unsigned int *data
)
337 int chan
= CR_CHAN(insn
->chanspec
);
340 case INSN_CONFIG_DIO_OUTPUT
:
341 s
->io_bits
|= 1 << chan
;
343 case INSN_CONFIG_DIO_INPUT
:
344 s
->io_bits
&= ~(1 << chan
);
346 case INSN_CONFIG_DIO_QUERY
:
348 (s
->io_bits
& (1 << chan
)) ? COMEDI_OUTPUT
: COMEDI_INPUT
;
355 writel(s
->io_bits
, devpriv
->mite
->daq_io_addr
+ DIO_PORT0_DIR_OFFSET
);
360 static int ni_670x_find_device(struct comedi_device
*dev
, int bus
, int slot
)
362 struct mite_struct
*mite
;
365 for (mite
= mite_devices
; mite
; mite
= mite
->next
) {
369 if (bus
!= mite
->pcidev
->bus
->number
370 || slot
!= PCI_SLOT(mite
->pcidev
->devfn
))
374 for (i
= 0; i
< n_ni_670x_boards
; i
++) {
375 if (mite_device_id(mite
) == ni_670x_boards
[i
].dev_id
) {
376 dev
->board_ptr
= ni_670x_boards
+ i
;
377 devpriv
->mite
= mite
;
383 printk(KERN_INFO
"no device found\n");