2 comedi/drivers/pcl726.c
4 hardware driver for Advantech cards:
5 card: PCL-726, PCL-727, PCL-728
6 driver: pcl726, pcl727, pcl728
8 card: ACL-6126, ACL-6128
9 driver: acl6126, acl6128
11 COMEDI - Linux Control and Measurement Device Interface
12 Copyright (C) 1998 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.
31 Description: Advantech PCL-726 & compatibles
34 Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
35 [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)
37 Interrupts are not supported.
41 [2]...[7] - D/A output range for channel 1-6:
42 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
43 4: 4-20mA, 5: unknown (external reference)
47 [2]...[13] - D/A output range for channel 1-12:
48 0: 0-5V, 1: 0-10V, 2: +/-5V,
51 Options for PCL-728 and ACL-6128:
53 [2], [3] - D/A output range for channel 1 and 2:
54 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
59 [1] - IRQ (0=disable, 3, 5, 6, 7, 9, 10, 11, 12, 15) (currently ignored)
60 [2]...[7] - D/A output range for channel 1-6:
61 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
66 Thanks to Circuit Specialists for having programming info (!) on
67 their web page. (http://www.cir.com/)
70 #include <linux/comedidev.h>
72 #include <linux/ioport.h>
75 #undef ACL6126_IRQ /* no interrupt support (yet) */
78 #define PCL726_SIZE 16
79 #define PCL727_SIZE 32
82 #define PCL726_DAC0_HI 0
83 #define PCL726_DAC0_LO 1
85 #define PCL726_DO_HI 12
86 #define PCL726_DO_LO 13
87 #define PCL726_DI_HI 14
88 #define PCL726_DI_LO 15
90 #define PCL727_DO_HI 24
91 #define PCL727_DO_LO 25
92 #define PCL727_DI_HI 0
93 #define PCL727_DI_LO 1
95 static comedi_lrange range_4_20mA={ 1, {RANGE_mA(4,20)}};
96 static comedi_lrange range_0_20mA={ 1, {RANGE_mA(0,20)}};
98 static comedi_lrange *rangelist_726[]={
99 &range_unipolar5, &range_unipolar10,
100 &range_bipolar5, &range_bipolar10,
101 &range_4_20mA, &range_unknown
104 static comedi_lrange *rangelist_727[]={
105 &range_unipolar5, &range_unipolar10,
110 static comedi_lrange *rangelist_728[]={
111 &range_unipolar5, &range_unipolar10,
112 &range_bipolar5, &range_bipolar10,
113 &range_4_20mA, &range_0_20mA
116 static int pcl726_attach(comedi_device *dev,comedi_devconfig *it);
117 static int pcl726_detach(comedi_device *dev);
120 const char *name; // driver name
121 int n_aochan; // num of D/A chans
122 int num_of_ranges; // num of ranges
123 unsigned int IRQbits; // allowed interrupts
124 unsigned int io_range; // len of IO space
125 char have_dio; // 1=card have DI/DO ports
126 int di_hi; // ports for DI/DO operations
130 comedi_lrange **range_type_list;// list of supported ranges
133 static boardtype boardtypes[] =
135 {"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
136 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
137 &rangelist_726[0], },
138 {"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
139 PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
140 &rangelist_727[0], },
141 {"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
143 &rangelist_728[0], },
144 {"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
145 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
146 &rangelist_726[0], },
147 {"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
149 &rangelist_728[0], },
151 #define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
152 #define this_board ((boardtype *)dev->board_ptr)
154 static comedi_driver driver_pcl726={
155 driver_name: "pcl726",
157 attach: pcl726_attach,
158 detach: pcl726_detach,
159 board_name: &boardtypes[0].name,
160 num_names: n_boardtypes,
161 offset: sizeof(boardtype),
163 COMEDI_INITCLEANUP(driver_pcl726);
167 comedi_lrange *rangelist[12];
168 lsampl_t ao_readback[12];
170 #define devpriv ((pcl726_private *)dev->private)
173 static int pcl726_ao_insn(comedi_device *dev,comedi_subdevice *s,
174 comedi_insn *insn,lsampl_t *data)
178 int chan=CR_CHAN(insn->chanspec);
180 for(n=0;n<insn->n;n++){
183 if(devpriv->bipolar[chan])hi^=0x8;
185 * the programming info did not say which order
186 * to write bytes. switch the order of the next
187 * two lines if you get glitches.
189 outb(hi,dev->iobase+PCL726_DAC0_HI + 2*chan);
190 outb(lo,dev->iobase+PCL726_DAC0_LO + 2*chan);
191 devpriv->ao_readback[chan]=data[n];
197 static int pcl726_ao_insn_read(comedi_device *dev,comedi_subdevice *s,
198 comedi_insn *insn,lsampl_t *data)
200 int chan=CR_CHAN(insn->chanspec);
203 for(n=0;n<insn->n;n++){
204 data[n]=devpriv->ao_readback[chan];
209 static int pcl726_di_insn_bits(comedi_device *dev,comedi_subdevice *s,
210 comedi_insn *insn,lsampl_t *data)
212 if(insn->n!=2)return -EINVAL;
214 data[1]=inb(dev->iobase+this_board->di_lo)|
215 (inb(dev->iobase+this_board->di_hi)<<8);
220 static int pcl726_do_insn_bits(comedi_device *dev,comedi_subdevice *s,
221 comedi_insn *insn,lsampl_t *data)
223 if(insn->n!=2)return -EINVAL;
226 s->state &= ~data[0];
227 s->state |= data[0]&data[1];
230 outb(s->state&0xff,dev->iobase+this_board->do_lo);
232 outb((s->state>>8),dev->iobase+this_board->do_hi);
239 static int pcl726_attach(comedi_device *dev,comedi_devconfig *it)
242 unsigned long iobase;
243 unsigned int iorange;
249 iobase=it->options[0];
250 iorange=this_board->io_range;
251 printk("comedi%d: pcl726: board=%s, 0x%03lx ",dev->minor,this_board->name,iobase);
252 if(!request_region(iobase, iorange, "pcl726")){
253 printk("I/O port conflict\n");
259 dev->board_name = this_board->name;
261 if((ret=alloc_private(dev,sizeof(pcl726_private)))<0)
264 for (i=0; i<12; i++) {
265 devpriv->bipolar[i]=0;
266 devpriv->rangelist[i]=&range_unknown;
271 if (boardtypes[board].IRQbits!=0) { /* board support IRQ */
273 devpriv->first_chan=2;
274 if (irq) {/* we want to use IRQ */
275 if (((1<<irq)&boardtypes[board].IRQbits)==0) {
276 rt_printk(", IRQ %d is out of allowed range, DISABLING IT",irq);
279 if (comedi_request_irq(irq, interrupt_pcl818, 0, "pcl726", dev)) {
280 rt_printk(", unable to allocate IRQ %d, DISABLING IT", irq);
281 irq=0; /* Can't use IRQ */
283 rt_printk(", irq=%d", irq);
294 if((ret=alloc_subdevices(dev, 3))<0)
299 s->type=COMEDI_SUBD_AO;
300 s->subdev_flags=SDF_WRITABLE|SDF_GROUND;
301 s->n_chan=this_board->n_aochan;
304 s->insn_write=pcl726_ao_insn;
305 s->insn_read=pcl726_ao_insn_read;
306 s->range_table_list = devpriv->rangelist;
307 for (i=0; i<this_board->n_aochan; i++) {
310 j = it->options[2+1];
311 if ((j<0)||(j>=this_board->num_of_ranges)) {
312 printk("Invalid range for channel %d! Must be 0<=%d<%d\n",
313 i,j,this_board->num_of_ranges-1);
316 devpriv->rangelist[i]=this_board->range_type_list[j];
317 if (devpriv->rangelist[i]->range[0].min==-devpriv->rangelist[i]->range[0].max)
318 devpriv->bipolar[i]=1; /* bipolar range */
323 if (!this_board->have_dio){
324 s->type = COMEDI_SUBD_UNUSED;
326 s->type=COMEDI_SUBD_DI;
327 s->subdev_flags=SDF_READABLE|SDF_GROUND;
331 s->insn_bits=pcl726_di_insn_bits;
332 s->range_table=&range_digital;
337 if (!this_board->have_dio){
338 s->type = COMEDI_SUBD_UNUSED;
340 s->type=COMEDI_SUBD_DO;
341 s->subdev_flags=SDF_WRITABLE|SDF_GROUND;
345 s->insn_bits=pcl726_do_insn_bits;
346 s->range_table=&range_digital;
353 static int pcl726_detach(comedi_device *dev)
355 // printk("comedi%d: pcl726: remove\n",dev->minor);
359 comedi_free_irq(dev->irq,dev);
364 release_region(dev->iobase,this_board->io_range);