Commit | Line | Data |
---|---|---|
8b93f903 | 1 | /* |
2 | comedi/drivers/adl_pci6208.c | |
3 | ||
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 | |
10 | ||
11 | COMEDI - Linux Control and Measurement Device Interface | |
12 | Copyright (C) 2000 David A. Schleef <ds@schleef.org> | |
13 | ||
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. | |
18 | ||
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. | |
23 | ||
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. | |
27 | */ | |
28 | /* | |
29 | Driver: adl_pci6208 | |
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 | |
34 | Status: untested | |
35 | ||
36 | Configuration Options: | |
37 | none | |
38 | ||
39 | References: | |
40 | - ni_660x.c | |
41 | - adl_pci9111.c copied the entire pci setup section | |
42 | - adl_pci9118.c | |
43 | */ | |
44 | /* | |
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 | |
49 | * subdevices, etc. | |
50 | * | |
51 | * Somewhere in the comment should be information about configuration | |
52 | * options that are used with comedi_config. | |
53 | */ | |
54 | #include "../comedidev.h" | |
55 | #include "comedi_pci.h" | |
56 | ||
57 | #define PCI6208_DRIVER_NAME "adl_pci6208" | |
58 | ||
59 | /* Board descriptions */ | |
60 | typedef struct { | |
61 | const char *name; | |
62 | unsigned short dev_id; /* `lspci` will show you this */ | |
63 | int ao_chans; | |
64 | //int ao_bits; | |
65 | } pci6208_board; | |
66 | static const pci6208_board pci6208_boards[] = { | |
67 | /*{ | |
68 | name : "pci6208v", | |
69 | dev_id : 0x6208, //not sure | |
70 | ao_chans: 8 | |
71 | //, ao_bits : 16 | |
72 | }, | |
73 | { | |
74 | name : "pci6216v", | |
75 | dev_id : 0x6208, //not sure | |
76 | ao_chans: 16 | |
77 | //, ao_bits : 16 | |
78 | }, */ | |
79 | { | |
80 | name: "pci6208a", | |
81 | dev_id: 0x6208, | |
82 | ao_chans:8 | |
83 | //, ao_bits : 16 | |
84 | } | |
85 | }; | |
86 | ||
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}, | |
93 | {0} | |
94 | }; | |
95 | ||
96 | MODULE_DEVICE_TABLE(pci, pci6208_pci_table); | |
97 | ||
98 | /* Will be initialized in pci6208_find device(). */ | |
99 | #define thisboard ((const pci6208_board *)dev->board_ptr) | |
100 | ||
101 | typedef struct { | |
102 | int data; | |
103 | struct pci_dev *pci_dev; /* for a PCI device */ | |
790c5541 | 104 | unsigned int ao_readback[2]; /* Used for AO readback */ |
8b93f903 | 105 | } pci6208_private; |
106 | ||
107 | #define devpriv ((pci6208_private *)dev->private) | |
108 | ||
71b5f4f1 BP |
109 | static int pci6208_attach(struct comedi_device * dev, comedi_devconfig * it); |
110 | static int pci6208_detach(struct comedi_device * dev); | |
8b93f903 | 111 | |
112 | #define pci6208_board_nbr \ | |
113 | (sizeof(pci6208_boards) / sizeof(pci6208_board)) | |
114 | ||
139dfbdf | 115 | static struct comedi_driver driver_pci6208 = { |
8b93f903 | 116 | driver_name:PCI6208_DRIVER_NAME, |
117 | module:THIS_MODULE, | |
118 | attach:pci6208_attach, | |
119 | detach:pci6208_detach, | |
120 | }; | |
121 | ||
122 | COMEDI_PCI_INITCLEANUP(driver_pci6208, pci6208_pci_table); | |
123 | ||
71b5f4f1 | 124 | static int pci6208_find_device(struct comedi_device * dev, int bus, int slot); |
8b93f903 | 125 | static int |
126 | pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr, | |
127 | int dev_minor); | |
128 | ||
129 | /*read/write functions*/ | |
34c43922 | 130 | static int pci6208_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s, |
90035c08 | 131 | struct comedi_insn * insn, unsigned int * data); |
34c43922 | 132 | static int pci6208_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s, |
90035c08 | 133 | struct comedi_insn * insn, unsigned int * data); |
34c43922 | 134 | //static int pci6208_dio_insn_bits(struct comedi_device *dev,struct comedi_subdevice *s, |
90035c08 | 135 | // struct comedi_insn *insn,unsigned int *data); |
34c43922 | 136 | //static int pci6208_dio_insn_config(struct comedi_device *dev,struct comedi_subdevice *s, |
90035c08 | 137 | // struct comedi_insn *insn,unsigned int *data); |
8b93f903 | 138 | |
139 | /* | |
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 | |
143 | * address. | |
144 | */ | |
71b5f4f1 | 145 | static int pci6208_attach(struct comedi_device * dev, comedi_devconfig * it) |
8b93f903 | 146 | { |
34c43922 | 147 | struct comedi_subdevice *s; |
8b93f903 | 148 | int retval; |
149 | unsigned long io_base; | |
150 | ||
151 | printk("comedi%d: pci6208: ", dev->minor); | |
152 | ||
153 | retval = alloc_private(dev, sizeof(pci6208_private)); | |
154 | if (retval < 0) | |
155 | return retval; | |
156 | ||
157 | retval = pci6208_find_device(dev, it->options[0], it->options[1]); | |
158 | if (retval < 0) | |
159 | return retval; | |
160 | ||
161 | retval = pci6208_pci_setup(devpriv->pci_dev, &io_base, dev->minor); | |
162 | if (retval < 0) | |
163 | return retval; | |
164 | ||
165 | dev->iobase = io_base; | |
166 | dev->board_name = thisboard->name; | |
167 | ||
168 | /* | |
169 | * Allocate the subdevice structures. alloc_subdevice() is a | |
170 | * convenient macro defined in comedidev.h. | |
171 | */ | |
172 | if (alloc_subdevices(dev, 2) < 0) | |
173 | return -ENOMEM; | |
174 | ||
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; | |
184 | ||
185 | //s=dev->subdevices+1; | |
186 | /* digital i/o subdevice */ | |
187 | //s->type=COMEDI_SUBD_DIO; | |
188 | //s->subdev_flags=SDF_READABLE|SDF_WRITABLE; | |
189 | //s->n_chan=16; | |
190 | //s->maxdata=1; | |
191 | //s->range_table=&range_digital; | |
192 | //s->insn_bits = pci6208_dio_insn_bits; | |
193 | //s->insn_config = pci6208_dio_insn_config; | |
194 | ||
195 | printk("attached\n"); | |
196 | ||
197 | return 1; | |
198 | } | |
199 | ||
200 | /* | |
201 | * _detach is called to deconfigure a device. It should deallocate | |
202 | * resources. | |
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. | |
207 | */ | |
71b5f4f1 | 208 | static int pci6208_detach(struct comedi_device * dev) |
8b93f903 | 209 | { |
210 | printk("comedi%d: pci6208: remove\n", dev->minor); | |
211 | ||
212 | if (devpriv && devpriv->pci_dev) { | |
213 | if (dev->iobase) { | |
214 | comedi_pci_disable(devpriv->pci_dev); | |
215 | } | |
216 | pci_dev_put(devpriv->pci_dev); | |
217 | } | |
218 | ||
219 | return 0; | |
220 | } | |
221 | ||
34c43922 | 222 | static int pci6208_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s, |
90035c08 | 223 | struct comedi_insn * insn, unsigned int * data) |
8b93f903 | 224 | { |
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 */ | |
234 | do { | |
235 | Data_Read = (inw(dev->iobase) & 1); | |
236 | } while (Data_Read); | |
237 | outw(out_value, dev->iobase + (0x02 * chan)); | |
238 | devpriv->ao_readback[chan] = out_value; | |
239 | } | |
240 | ||
241 | /* return the number of samples read/written */ | |
242 | return i; | |
243 | } | |
244 | ||
245 | /* AO subdevices should have a read insn as well as a write insn. | |
246 | * Usually this means copying a value stored in devpriv. */ | |
34c43922 | 247 | static int pci6208_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s, |
90035c08 | 248 | struct comedi_insn * insn, unsigned int * data) |
8b93f903 | 249 | { |
250 | int i; | |
251 | int chan = CR_CHAN(insn->chanspec); | |
252 | ||
253 | for (i = 0; i < insn->n; i++) | |
254 | data[i] = devpriv->ao_readback[chan]; | |
255 | ||
256 | return i; | |
257 | } | |
258 | ||
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 */ | |
34c43922 | 264 | //static int pci6208_dio_insn_bits(struct comedi_device *dev,struct comedi_subdevice *s, |
90035c08 | 265 | // struct comedi_insn *insn,unsigned int *data) |
8b93f903 | 266 | //{ |
267 | // if(insn->n!=2)return -EINVAL; | |
268 | ||
269 | /* The insn data is a mask in data[0] and the new data | |
270 | * in data[1], each channel cooresponding to a bit. */ | |
271 | // if(data[0]){ | |
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); | |
276 | // } | |
277 | ||
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 */ | |
283 | //data[1]=s->state; | |
284 | ||
285 | // return 2; | |
286 | //} | |
287 | ||
34c43922 | 288 | //static int pci6208_dio_insn_config(struct comedi_device *dev,struct comedi_subdevice *s, |
90035c08 | 289 | // struct comedi_insn *insn,unsigned int *data) |
8b93f903 | 290 | //{ |
291 | // int chan=CR_CHAN(insn->chanspec); | |
292 | ||
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. */ | |
297 | ||
298 | // if(data[0]==COMEDI_OUTPUT){ | |
299 | // s->io_bits |= 1<<chan; | |
300 | // }else{ | |
301 | // s->io_bits &= ~(1<<chan); | |
302 | // } | |
303 | //outw(s->io_bits,dev->iobase + SKEL_DIO_CONFIG); | |
304 | ||
305 | // return 1; | |
306 | //} | |
307 | ||
71b5f4f1 | 308 | static int pci6208_find_device(struct comedi_device * dev, int bus, int slot) |
8b93f903 | 309 | { |
310 | struct pci_dev *pci_dev; | |
311 | int i; | |
312 | ||
313 | for (pci_dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); | |
314 | pci_dev != 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 | |
323 | != bus || | |
324 | PCI_SLOT(pci_dev->devfn) | |
325 | != slot) { | |
326 | continue; | |
327 | } | |
328 | } | |
329 | dev->board_ptr = pci6208_boards + i; | |
330 | goto found; | |
331 | } | |
332 | } | |
333 | } | |
334 | } | |
335 | ||
336 | printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n", | |
337 | dev->minor, bus, slot); | |
338 | return -EIO; | |
339 | ||
340 | found: | |
341 | printk("comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n", | |
342 | dev->minor, | |
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); | |
347 | ||
348 | // TODO: Warn about non-tested boards. | |
349 | //switch(board->device_id) | |
350 | //{ | |
351 | //}; | |
352 | ||
353 | devpriv->pci_dev = pci_dev; | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | static int | |
359 | pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr, | |
360 | int dev_minor) | |
361 | { | |
362 | unsigned long io_base, io_range, lcr_io_base, lcr_io_range; | |
363 | ||
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); | |
367 | return -EIO; | |
368 | } | |
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); | |
372 | ||
373 | printk("comedi%d: local config registers at address 0x%4lx [0x%4lx]\n", | |
374 | dev_minor, lcr_io_base, lcr_io_range); | |
375 | ||
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; | |
379 | ||
380 | printk("comedi%d: 6208 registers at address 0x%4lx [0x%4lx]\n", | |
381 | dev_minor, io_base, io_range); | |
382 | ||
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; | |
388 | ||
389 | return 0; | |
390 | } |