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/comedidev.h>
48 #define PCI_VENDOR_ID_NATINST 0x1093
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 typedef struct ni_670x_board_struct
65 unsigned short dev_id;
67 unsigned short ao_chans;
68 unsigned short ao_bits;
70 static ni_670x_board ni_670x_boards[] =
92 static struct pci_device_id ni_670x_pci_table[] __devinitdata = {
93 { PCI_VENDOR_ID_NATINST, 0x2c90, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
94 { PCI_VENDOR_ID_NATINST, 0x1920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
95 //{ PCI_VENDOR_ID_NATINST, 0x0000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
98 MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
100 #define thisboard ((ni_670x_board *)dev->board_ptr)
104 struct mite_struct *mite;
107 lsampl_t ao_readback[32];
110 #define devpriv ((ni_670x_private *)dev->private)
111 #define n_ni_670x_boards (sizeof(ni_670x_boards)/sizeof(ni_670x_boards[0]))
113 static int ni_670x_attach(comedi_device *dev,comedi_devconfig *it);
114 static int ni_670x_detach(comedi_device *dev);
116 static comedi_driver driver_ni_670x=
118 driver_name: "ni_670x",
120 attach: ni_670x_attach,
121 detach: ni_670x_detach,
123 COMEDI_INITCLEANUP(driver_ni_670x);
125 static comedi_lrange range_0_20mA = { 1, { RANGE_mA(0,20)}};
127 static int ni_670x_find_device(comedi_device *dev,int bus,int slot);
129 static int ni_670x_ao_winsn(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data);
130 static int ni_670x_ao_rinsn(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data);
131 static int ni_670x_dio_insn_bits(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data);
132 static int ni_670x_dio_insn_config(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data);
135 static int ni_670x_attach(comedi_device *dev,comedi_devconfig *it)
141 printk("comedi%d: ni_670x: ",dev->minor);
143 if((ret=alloc_private(dev,sizeof(ni_670x_private)))<0)
146 ret=ni_670x_find_device(dev,it->options[0],it->options[1]);
147 if(ret<0) return ret;
149 ret = mite_setup(devpriv->mite);
152 printk("error setting up mite\n");
155 dev->iobase=mite_iobase(devpriv->mite);
156 dev->board_name=thisboard->name;
157 dev->irq=mite_irq(devpriv->mite);
158 printk(" %s",dev->board_name);
160 if(alloc_subdevices(dev, 2)<0)
164 /* analog output subdevice */
165 s->type = COMEDI_SUBD_AO;
166 s->subdev_flags = SDF_WRITABLE;
167 s->n_chan = thisboard->ao_chans;
170 s->range_table_list = kmalloc(sizeof(comedi_lrange *)*32,
173 s->range_table_list[i] = &range_bipolar10;
174 s->range_table_list[16+i] = &range_0_20mA;
177 s->range_table = &range_bipolar10;
179 s->insn_write = &ni_670x_ao_winsn;
180 s->insn_read = &ni_670x_ao_rinsn;
183 /* digital i/o subdevice */
184 s->type = COMEDI_SUBD_DIO;
185 s->subdev_flags = SDF_READABLE|SDF_WRITABLE;
188 s->range_table = &range_digital;
189 s->insn_bits = ni_670x_dio_insn_bits;
190 s->insn_config = ni_670x_dio_insn_config;
192 writel(0x10 ,dev->iobase + MISC_CONTROL_OFFSET); /* Config of misc registers */
193 writel(0x00 ,dev->iobase + AO_CONTROL_OFFSET); /* Config of ao registers */
195 printk("attached\n");
201 static int ni_670x_detach(comedi_device *dev)
203 printk("comedi%d: ni_670x: remove\n",dev->minor);
205 if(dev->subdevices[0].range_table_list){
206 kfree(dev->subdevices[0].range_table_list);
208 if(dev->private && devpriv->mite)
209 mite_unsetup(devpriv->mite);
212 comedi_free_irq(dev->irq,dev);
220 static int ni_670x_ao_winsn(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data)
223 int chan = CR_CHAN(insn->chanspec);
225 /* Channel number mapping :
227 NI 6703/ NI 6704 | NI 6704 Only
228 ----------------------------------------------------
229 vch(0) : 0 | ich(16) : 1
230 vch(1) : 2 | ich(17) : 3
234 vch(15) : 30 | ich(31) : 31 */
236 for(i=0;i<insn->n;i++){
237 writel(((chan&15)<<1) | ((chan&16)>>4),
238 dev->iobase + AO_CHAN_OFFSET); /* First write in channel register which channel to use */
239 writel(data[i],dev->iobase + AO_VALUE_OFFSET); /* write channel value */
240 devpriv->ao_readback[chan] = data[i];
246 static int ni_670x_ao_rinsn(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data)
249 int chan = CR_CHAN(insn->chanspec);
251 for(i=0;i<insn->n;i++)
252 data[i] = devpriv->ao_readback[chan];
257 static int ni_670x_dio_insn_bits(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data)
259 if(insn->n!=2)return -EINVAL;
261 /* The insn data is a mask in data[0] and the new data
262 * in data[1], each channel cooresponding to a bit. */
265 s->state &= ~data[0];
266 s->state |= data[0]&data[1];
267 writel(s->state,dev->iobase + DIO_PORT0_DATA_OFFSET);
270 /* on return, data[1] contains the value of the digital
272 data[1]=readl(dev->iobase + DIO_PORT0_DATA_OFFSET);
277 static int ni_670x_dio_insn_config(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data)
279 int chan=CR_CHAN(insn->chanspec);
282 if(insn->n!=1) return -EINVAL;
284 if(data[0]==COMEDI_OUTPUT)
286 s->io_bits |= 1<<chan;
290 s->io_bits &= ~(1<<chan);
292 writel(s->io_bits,dev->iobase + DIO_PORT0_DIR_OFFSET);
297 static int ni_670x_find_device(comedi_device *dev,int bus,int slot)
299 struct mite_struct *mite;
302 for(mite=mite_devices;mite;mite=mite->next)
304 if(mite->used)continue;
307 if(bus!=mite->pcidev->bus->number || slot!=PCI_SLOT(mite->pcidev->devfn))
311 for(i=0;i<n_ni_670x_boards;i++)
313 if(mite_device_id(mite)==ni_670x_boards[i].dev_id)
315 dev->board_ptr=ni_670x_boards+i;
322 printk("no device found\n");