2 comedi/drivers/adl_pci6208.c
4 Hardware driver for ADLink 6208 series cards:
5 card | voltage output | current output
6 -------------+-------------------+---------------
7 PCI-6208V | 8 channels | -
8 PCI-6216V | 16 channels | -
9 PCI-6208A | 8 channels | 8 channels
11 COMEDI - Linux Control and Measurement Device Interface
12 Copyright (C) 2000 David A. Schleef <ds@schleef.org>
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 Description: ADLink PCI-6208A
31 Devices: [ADLink] PCI-6208A (adl_pci6208)
32 Author: nsyeow <nsyeow@pd.jaring.my>
33 Updated: Fri, 30 Jan 2004 14:44:27 +0800
36 Configuration Options:
41 - adl_pci9111.c copied the entire pci setup section
45 * These headers should be followed by a blank line, and any comments
46 * you wish to say about the driver. The comment area is the place
47 * to put any known bugs, limitations, unsupported features, supported
48 * command triggers, whether or not commands are supported on particular
51 * Somewhere in the comment should be information about configuration
52 * options that are used with comedi_config.
54 #include "../comedidev.h"
55 #include "comedi_pci.h"
57 #define PCI6208_DRIVER_NAME "adl_pci6208"
59 /* Board descriptions */
60 struct pci6208_board {
62 unsigned short dev_id; /* `lspci` will show you this */
67 static const struct pci6208_board pci6208_boards[] = {
70 .dev_id = 0x6208, // not sure
76 .dev_id = 0x6208, // not sure
88 /* This is used by modprobe to translate PCI IDs to drivers. Should
89 * only be used for PCI and ISA-PnP devices */
90 static DEFINE_PCI_DEVICE_TABLE(pci6208_pci_table) = {
91 /* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
92 /* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
93 {PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
97 MODULE_DEVICE_TABLE(pci, pci6208_pci_table);
99 /* Will be initialized in pci6208_find device(). */
100 #define thisboard ((const struct pci6208_board *)dev->board_ptr)
102 struct pci6208_private {
104 struct pci_dev *pci_dev; /* for a PCI device */
105 unsigned int ao_readback[2]; /* Used for AO readback */
108 #define devpriv ((struct pci6208_private *)dev->private)
110 static int pci6208_attach(struct comedi_device *dev, struct comedi_devconfig *it);
111 static int pci6208_detach(struct comedi_device *dev);
113 static struct comedi_driver driver_pci6208 = {
114 .driver_name = PCI6208_DRIVER_NAME,
115 .module = THIS_MODULE,
116 .attach = pci6208_attach,
117 .detach = pci6208_detach,
120 COMEDI_PCI_INITCLEANUP(driver_pci6208, pci6208_pci_table);
122 static int pci6208_find_device(struct comedi_device *dev, int bus, int slot);
124 pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr,
127 /*read/write functions*/
128 static int pci6208_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
129 struct comedi_insn *insn, unsigned int *data);
130 static int pci6208_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
131 struct comedi_insn *insn, unsigned int *data);
132 /* static int pci6208_dio_insn_bits(struct comedi_device *dev,struct comedi_subdevice *s, */
133 /* struct comedi_insn *insn,unsigned int *data); */
134 /* static int pci6208_dio_insn_config(struct comedi_device *dev,struct comedi_subdevice *s, */
135 /* struct comedi_insn *insn,unsigned int *data); */
138 * Attach is called by the Comedi core to configure the driver
139 * for a particular board. If you specified a board_name array
140 * in the driver structure, dev->board_ptr contains that
143 static int pci6208_attach(struct comedi_device *dev, struct comedi_devconfig *it)
145 struct comedi_subdevice *s;
147 unsigned long io_base;
149 printk("comedi%d: pci6208: ", dev->minor);
151 retval = alloc_private(dev, sizeof(struct pci6208_private));
155 retval = pci6208_find_device(dev, it->options[0], it->options[1]);
159 retval = pci6208_pci_setup(devpriv->pci_dev, &io_base, dev->minor);
163 dev->iobase = io_base;
164 dev->board_name = thisboard->name;
167 * Allocate the subdevice structures. alloc_subdevice() is a
168 * convenient macro defined in comedidev.h.
170 if (alloc_subdevices(dev, 2) < 0)
173 s = dev->subdevices + 0;
174 /* analog output subdevice */
175 s->type = COMEDI_SUBD_AO;
176 s->subdev_flags = SDF_WRITABLE; /* anything else to add here?? */
177 s->n_chan = thisboard->ao_chans;
178 s->maxdata = 0xffff; /* 16-bit DAC */
179 s->range_table = &range_bipolar10; /* this needs to be checked. */
180 s->insn_write = pci6208_ao_winsn;
181 s->insn_read = pci6208_ao_rinsn;
183 /* s=dev->subdevices+1; */
184 /* digital i/o subdevice */
185 /* s->type=COMEDI_SUBD_DIO; */
186 /* s->subdev_flags=SDF_READABLE|SDF_WRITABLE; */
189 /* s->range_table=&range_digital; */
190 /* s->insn_bits = pci6208_dio_insn_bits; */
191 /* s->insn_config = pci6208_dio_insn_config; */
193 printk("attached\n");
199 * _detach is called to deconfigure a device. It should deallocate
201 * This function is also called when _attach() fails, so it should be
202 * careful not to release resources that were not necessarily
203 * allocated by _attach(). dev->private and dev->subdevices are
204 * deallocated automatically by the core.
206 static int pci6208_detach(struct comedi_device *dev)
208 printk("comedi%d: pci6208: remove\n", dev->minor);
210 if (devpriv && devpriv->pci_dev) {
212 comedi_pci_disable(devpriv->pci_dev);
214 pci_dev_put(devpriv->pci_dev);
220 static int pci6208_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
221 struct comedi_insn *insn, unsigned int *data)
223 int i = 0, Data_Read;
224 unsigned short chan = CR_CHAN(insn->chanspec);
225 unsigned long invert = 1 << (16 - 1);
226 unsigned long out_value;
227 /* Writing a list of values to an AO channel is probably not
228 * very useful, but that's how the interface is defined. */
229 for (i = 0; i < insn->n; i++) {
230 out_value = data[i] ^ invert;
231 /* a typical programming sequence */
233 Data_Read = (inw(dev->iobase) & 1);
235 outw(out_value, dev->iobase + (0x02 * chan));
236 devpriv->ao_readback[chan] = out_value;
239 /* return the number of samples read/written */
243 /* AO subdevices should have a read insn as well as a write insn.
244 * Usually this means copying a value stored in devpriv. */
245 static int pci6208_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
246 struct comedi_insn *insn, unsigned int *data)
249 int chan = CR_CHAN(insn->chanspec);
251 for (i = 0; i < insn->n; i++)
252 data[i] = devpriv->ao_readback[chan];
257 /* DIO devices are slightly special. Although it is possible to
258 * implement the insn_read/insn_write interface, it is much more
259 * useful to applications if you implement the insn_bits interface.
260 * This allows packed reading/writing of the DIO channels. The
261 * comedi core can convert between insn_bits and insn_read/write */
262 /* static int pci6208_dio_insn_bits(struct comedi_device *dev,struct comedi_subdevice *s, */
263 /* struct comedi_insn *insn,unsigned int *data) */
265 /* if(insn->n!=2)return -EINVAL; */
267 /* The insn data is a mask in data[0] and the new data
268 * in data[1], each channel cooresponding to a bit. */
270 /* s->state &= ~data[0]; */
271 /* s->state |= data[0]&data[1]; */
272 /* Write out the new digital output lines */
273 /* outw(s->state,dev->iobase + SKEL_DIO); */
276 /* on return, data[1] contains the value of the digital
277 * input and output lines. */
278 /* data[1]=inw(dev->iobase + SKEL_DIO); */
279 /* or we could just return the software copy of the output values if
280 * it was a purely digital output subdevice */
281 /* data[1]=s->state; */
286 /* static int pci6208_dio_insn_config(struct comedi_device *dev,struct comedi_subdevice *s, */
287 /* struct comedi_insn *insn,unsigned int *data) */
289 /* int chan=CR_CHAN(insn->chanspec); */
291 /* The input or output configuration of each digital line is
292 * configured by a special insn_config instruction. chanspec
293 * contains the channel to be changed, and data[0] contains the
294 * value COMEDI_INPUT or COMEDI_OUTPUT. */
296 /* if(data[0]==COMEDI_OUTPUT){ */
297 /* s->io_bits |= 1<<chan; */
299 /* s->io_bits &= ~(1<<chan); */
301 /* outw(s->io_bits,dev->iobase + SKEL_DIO_CONFIG); */
306 static int pci6208_find_device(struct comedi_device *dev, int bus, int slot)
308 struct pci_dev *pci_dev;
311 for (pci_dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
313 pci_dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pci_dev)) {
314 if (pci_dev->vendor == PCI_VENDOR_ID_ADLINK) {
315 for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
316 if (pci6208_boards[i].dev_id == pci_dev->device) {
317 /* was a particular bus/slot requested? */
318 if ((bus != 0) || (slot != 0)) {
319 /* are we on the wrong bus/slot? */
320 if (pci_dev->bus->number
322 PCI_SLOT(pci_dev->devfn)
327 dev->board_ptr = pci6208_boards + i;
334 printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
335 dev->minor, bus, slot);
339 printk("comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n",
341 pci6208_boards[i].name,
342 pci_dev->bus->number,
343 PCI_SLOT(pci_dev->devfn),
344 PCI_FUNC(pci_dev->devfn), pci_dev->irq);
346 /* TODO: Warn about non-tested boards. */
347 /* switch(board->device_id) */
351 devpriv->pci_dev = pci_dev;
357 pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr,
360 unsigned long io_base, io_range, lcr_io_base, lcr_io_range;
362 /* Enable PCI device and request regions */
363 if (comedi_pci_enable(pci_dev, PCI6208_DRIVER_NAME) < 0) {
364 printk("comedi%d: Failed to enable PCI device and request regions\n", dev_minor);
367 /* Read local configuration register base address [PCI_BASE_ADDRESS #1]. */
368 lcr_io_base = pci_resource_start(pci_dev, 1);
369 lcr_io_range = pci_resource_len(pci_dev, 1);
371 printk("comedi%d: local config registers at address 0x%4lx [0x%4lx]\n",
372 dev_minor, lcr_io_base, lcr_io_range);
374 /* Read PCI6208 register base address [PCI_BASE_ADDRESS #2]. */
375 io_base = pci_resource_start(pci_dev, 2);
376 io_range = pci_resource_end(pci_dev, 2) - io_base + 1;
378 printk("comedi%d: 6208 registers at address 0x%4lx [0x%4lx]\n",
379 dev_minor, io_base, io_range);
381 *io_base_ptr = io_base;
382 /* devpriv->io_range = io_range; */
383 /* devpriv->is_valid=0; */
384 /* devpriv->lcr_io_base=lcr_io_base; */
385 /* devpriv->lcr_io_range=lcr_io_range; */