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 */
62 unsigned short dev_id; /* `lspci` will show you this */
66 static const pci6208_board pci6208_boards[] = {
69 dev_id : 0x6208, //not sure
75 dev_id : 0x6208, //not sure
87 /* This is used by modprobe to translate PCI IDs to drivers. Should
88 * only be used for PCI and ISA-PnP devices */
89 static DEFINE_PCI_DEVICE_TABLE(pci6208_pci_table) = {
90 //{ PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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},
96 MODULE_DEVICE_TABLE(pci, pci6208_pci_table);
98 /* Will be initialized in pci6208_find device(). */
99 #define thisboard ((const pci6208_board *)dev->board_ptr)
103 struct pci_dev *pci_dev; /* for a PCI device */
104 unsigned int ao_readback[2]; /* Used for AO readback */
107 #define devpriv ((pci6208_private *)dev->private)
109 static int pci6208_attach(struct comedi_device * dev, comedi_devconfig * it);
110 static int pci6208_detach(struct comedi_device * dev);
112 #define pci6208_board_nbr \
113 (sizeof(pci6208_boards) / sizeof(pci6208_board))
115 static struct comedi_driver driver_pci6208 = {
116 driver_name:PCI6208_DRIVER_NAME,
118 attach:pci6208_attach,
119 detach:pci6208_detach,
122 COMEDI_PCI_INITCLEANUP(driver_pci6208, pci6208_pci_table);
124 static int pci6208_find_device(struct comedi_device * dev, int bus, int slot);
126 pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr,
129 /*read/write functions*/
130 static int pci6208_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
131 struct comedi_insn * insn, unsigned int * data);
132 static int pci6208_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
133 struct comedi_insn * insn, unsigned int * data);
134 //static int pci6208_dio_insn_bits(struct comedi_device *dev,struct comedi_subdevice *s,
135 // struct comedi_insn *insn,unsigned int *data);
136 //static int pci6208_dio_insn_config(struct comedi_device *dev,struct comedi_subdevice *s,
137 // struct comedi_insn *insn,unsigned int *data);
140 * Attach is called by the Comedi core to configure the driver
141 * for a particular board. If you specified a board_name array
142 * in the driver structure, dev->board_ptr contains that
145 static int pci6208_attach(struct comedi_device * dev, comedi_devconfig * it)
147 struct comedi_subdevice *s;
149 unsigned long io_base;
151 printk("comedi%d: pci6208: ", dev->minor);
153 retval = alloc_private(dev, sizeof(pci6208_private));
157 retval = pci6208_find_device(dev, it->options[0], it->options[1]);
161 retval = pci6208_pci_setup(devpriv->pci_dev, &io_base, dev->minor);
165 dev->iobase = io_base;
166 dev->board_name = thisboard->name;
169 * Allocate the subdevice structures. alloc_subdevice() is a
170 * convenient macro defined in comedidev.h.
172 if (alloc_subdevices(dev, 2) < 0)
175 s = dev->subdevices + 0;
176 /* analog output subdevice */
177 s->type = COMEDI_SUBD_AO;
178 s->subdev_flags = SDF_WRITABLE; //anything else to add here??
179 s->n_chan = thisboard->ao_chans;
180 s->maxdata = 0xffff; //16-bit DAC
181 s->range_table = &range_bipolar10; //this needs to be checked.
182 s->insn_write = pci6208_ao_winsn;
183 s->insn_read = pci6208_ao_rinsn;
185 //s=dev->subdevices+1;
186 /* digital i/o subdevice */
187 //s->type=COMEDI_SUBD_DIO;
188 //s->subdev_flags=SDF_READABLE|SDF_WRITABLE;
191 //s->range_table=&range_digital;
192 //s->insn_bits = pci6208_dio_insn_bits;
193 //s->insn_config = pci6208_dio_insn_config;
195 printk("attached\n");
201 * _detach is called to deconfigure a device. It should deallocate
203 * This function is also called when _attach() fails, so it should be
204 * careful not to release resources that were not necessarily
205 * allocated by _attach(). dev->private and dev->subdevices are
206 * deallocated automatically by the core.
208 static int pci6208_detach(struct comedi_device * dev)
210 printk("comedi%d: pci6208: remove\n", dev->minor);
212 if (devpriv && devpriv->pci_dev) {
214 comedi_pci_disable(devpriv->pci_dev);
216 pci_dev_put(devpriv->pci_dev);
222 static int pci6208_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
223 struct comedi_insn * insn, unsigned int * data)
225 int i = 0, Data_Read;
226 unsigned short chan = CR_CHAN(insn->chanspec);
227 unsigned long invert = 1 << (16 - 1);
228 unsigned long out_value;
229 /* Writing a list of values to an AO channel is probably not
230 * very useful, but that's how the interface is defined. */
231 for (i = 0; i < insn->n; i++) {
232 out_value = data[i] ^ invert;
233 /* a typical programming sequence */
235 Data_Read = (inw(dev->iobase) & 1);
237 outw(out_value, dev->iobase + (0x02 * chan));
238 devpriv->ao_readback[chan] = out_value;
241 /* return the number of samples read/written */
245 /* AO subdevices should have a read insn as well as a write insn.
246 * Usually this means copying a value stored in devpriv. */
247 static int pci6208_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
248 struct comedi_insn * insn, unsigned int * data)
251 int chan = CR_CHAN(insn->chanspec);
253 for (i = 0; i < insn->n; i++)
254 data[i] = devpriv->ao_readback[chan];
259 /* DIO devices are slightly special. Although it is possible to
260 * implement the insn_read/insn_write interface, it is much more
261 * useful to applications if you implement the insn_bits interface.
262 * This allows packed reading/writing of the DIO channels. The
263 * comedi core can convert between insn_bits and insn_read/write */
264 //static int pci6208_dio_insn_bits(struct comedi_device *dev,struct comedi_subdevice *s,
265 // struct comedi_insn *insn,unsigned int *data)
267 // if(insn->n!=2)return -EINVAL;
269 /* The insn data is a mask in data[0] and the new data
270 * in data[1], each channel cooresponding to a bit. */
272 // s->state &= ~data[0];
273 // s->state |= data[0]&data[1];
274 /* Write out the new digital output lines */
275 //outw(s->state,dev->iobase + SKEL_DIO);
278 /* on return, data[1] contains the value of the digital
279 * input and output lines. */
280 //data[1]=inw(dev->iobase + SKEL_DIO);
281 /* or we could just return the software copy of the output values if
282 * it was a purely digital output subdevice */
288 //static int pci6208_dio_insn_config(struct comedi_device *dev,struct comedi_subdevice *s,
289 // struct comedi_insn *insn,unsigned int *data)
291 // int chan=CR_CHAN(insn->chanspec);
293 /* The input or output configuration of each digital line is
294 * configured by a special insn_config instruction. chanspec
295 * contains the channel to be changed, and data[0] contains the
296 * value COMEDI_INPUT or COMEDI_OUTPUT. */
298 // if(data[0]==COMEDI_OUTPUT){
299 // s->io_bits |= 1<<chan;
301 // s->io_bits &= ~(1<<chan);
303 //outw(s->io_bits,dev->iobase + SKEL_DIO_CONFIG);
308 static int pci6208_find_device(struct comedi_device * dev, int bus, int slot)
310 struct pci_dev *pci_dev;
313 for (pci_dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
315 pci_dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pci_dev)) {
316 if (pci_dev->vendor == PCI_VENDOR_ID_ADLINK) {
317 for (i = 0; i < pci6208_board_nbr; i++) {
318 if (pci6208_boards[i].dev_id == pci_dev->device) {
319 // was a particular bus/slot requested?
320 if ((bus != 0) || (slot != 0)) {
321 // are we on the wrong bus/slot?
322 if (pci_dev->bus->number
324 PCI_SLOT(pci_dev->devfn)
329 dev->board_ptr = pci6208_boards + i;
336 printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
337 dev->minor, bus, slot);
341 printk("comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n",
343 pci6208_boards[i].name,
344 pci_dev->bus->number,
345 PCI_SLOT(pci_dev->devfn),
346 PCI_FUNC(pci_dev->devfn), pci_dev->irq);
348 // TODO: Warn about non-tested boards.
349 //switch(board->device_id)
353 devpriv->pci_dev = pci_dev;
359 pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr,
362 unsigned long io_base, io_range, lcr_io_base, lcr_io_range;
364 // Enable PCI device and request regions
365 if (comedi_pci_enable(pci_dev, PCI6208_DRIVER_NAME) < 0) {
366 printk("comedi%d: Failed to enable PCI device and request regions\n", dev_minor);
369 // Read local configuration register base address [PCI_BASE_ADDRESS #1].
370 lcr_io_base = pci_resource_start(pci_dev, 1);
371 lcr_io_range = pci_resource_len(pci_dev, 1);
373 printk("comedi%d: local config registers at address 0x%4lx [0x%4lx]\n",
374 dev_minor, lcr_io_base, lcr_io_range);
376 // Read PCI6208 register base address [PCI_BASE_ADDRESS #2].
377 io_base = pci_resource_start(pci_dev, 2);
378 io_range = pci_resource_end(pci_dev, 2) - io_base + 1;
380 printk("comedi%d: 6208 registers at address 0x%4lx [0x%4lx]\n",
381 dev_minor, io_base, io_range);
383 *io_base_ptr = io_base;
384 //devpriv->io_range = io_range;
385 //devpriv->is_valid=0;
386 //devpriv->lcr_io_base=lcr_io_base;
387 //devpriv->lcr_io_range=lcr_io_range;