Commit | Line | Data |
---|---|---|
48a4d521 AB |
1 | /* |
2 | comedi/drivers/daqboard2000.c | |
3 | hardware driver for IOtech DAQboard/2000 | |
4 | ||
5 | COMEDI - Linux Control and Measurement Device Interface | |
6 | Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se> | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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. | |
21 | ||
22 | */ | |
23 | /* | |
24 | Driver: daqboard2000 | |
25 | Description: IOTech DAQBoard/2000 | |
26 | Author: Anders Blomdell <anders.blomdell@control.lth.se> | |
27 | Status: works | |
28 | Updated: Mon, 14 Apr 2008 15:28:52 +0100 | |
29 | Devices: [IOTech] DAQBoard/2000 (daqboard2000) | |
30 | ||
31 | Much of the functionality of this driver was determined from reading | |
32 | the source code for the Windows driver. | |
33 | ||
34 | The FPGA on the board requires initialization code, which can | |
35 | be loaded by comedi_config using the -i | |
36 | option. The initialization code is available from http://www.comedi.org | |
37 | in the comedi_nonfree_firmware tarball. | |
38 | ||
39 | Configuration options: | |
40 | [0] - PCI bus of device (optional) | |
41 | [1] - PCI slot of device (optional) | |
42 | If bus/slot is not specified, the first supported | |
43 | PCI device found will be used. | |
44 | */ | |
45 | /* | |
46 | This card was obviously never intended to leave the Windows world, | |
47 | since it lacked all kind of hardware documentation (except for cable | |
48 | pinouts, plug and pray has something to catch up with yet). | |
49 | ||
50 | With some help from our swedish distributor, we got the Windows sourcecode | |
51 | for the card, and here are the findings so far. | |
52 | ||
53 | 1. A good document that describes the PCI interface chip is found at: | |
54 | http://plx.plxtech.com/download/9080/databook/9080db-106.pdf | |
55 | ||
56 | 2. The initialization done so far is: | |
57 | a. program the FPGA (windows code sans a lot of error messages) | |
58 | b. | |
59 | ||
60 | 3. Analog out seems to work OK with DAC's disabled, if DAC's are enabled, | |
61 | you have to output values to all enabled DAC's until result appears, I | |
62 | guess that it has something to do with pacer clocks, but the source | |
63 | gives me no clues. I'll keep it simple so far. | |
64 | ||
65 | 4. Analog in. | |
66 | Each channel in the scanlist seems to be controlled by four | |
67 | control words: | |
68 | ||
69 | Word0: | |
70 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
71 | ! | | | ! | | | ! | | | ! | | | ! | |
72 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
73 | ||
74 | Word1: | |
75 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
76 | ! | | | ! | | | ! | | | ! | | | ! | |
77 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
78 | | | | | | | | | |
79 | +------+------+ | | | | +-- Digital input (??) | |
80 | | | | | +---- 10 us settling time | |
81 | | | | +------ Suspend acquisition (last to scan) | |
82 | | | +-------- Simultaneous sample and hold | |
83 | | +---------- Signed data format | |
84 | +------------------------- Correction offset low | |
85 | ||
86 | Word2: | |
87 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
88 | ! | | | ! | | | ! | | | ! | | | ! | |
89 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
90 | | | | | | | | | | | | |
91 | +-----+ +--+--+ +++ +++ +--+--+ | |
92 | | | | | +----- Expansion channel | |
93 | | | | +----------- Expansion gain | |
94 | | | +--------------- Channel (low) | |
95 | | +--------------------- Correction offset high | |
96 | +----------------------------- Correction gain low | |
97 | Word3: | |
98 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
99 | ! | | | ! | | | ! | | | ! | | | ! | |
100 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
101 | | | | | | | | | | | |
102 | +------+------+ | | +-+-+ | | +-- Low bank enable | |
103 | | | | | | +---- High bank enable | |
104 | | | | | +------ Hi/low select | |
105 | | | | +---------- Gain (1,?,2,4,8,16,32,64) | |
106 | | | +-------------- differential/single ended | |
107 | | +---------------- Unipolar | |
108 | +------------------------- Correction gain high | |
109 | ||
48a4d521 AB |
110 | 999. The card seems to have an incredible amount of capabilities, but |
111 | trying to reverse engineer them from the Windows source is beyond my | |
112 | patience. | |
113 | ||
48a4d521 AB |
114 | */ |
115 | ||
116 | #include "../comedidev.h" | |
117 | ||
118 | #include <linux/delay.h> | |
25436dc9 | 119 | #include <linux/interrupt.h> |
48a4d521 AB |
120 | |
121 | #include "comedi_pci.h" | |
122 | #include "8255.h" | |
123 | ||
124 | #define DAQBOARD2000_SUBSYSTEM_IDS2 0x00021616 /* Daqboard/2000 - 2 Dacs */ | |
125 | #define DAQBOARD2000_SUBSYSTEM_IDS4 0x00041616 /* Daqboard/2000 - 4 Dacs */ | |
126 | ||
127 | #define DAQBOARD2000_DAQ_SIZE 0x1002 | |
128 | #define DAQBOARD2000_PLX_SIZE 0x100 | |
129 | ||
2696fb57 | 130 | /* Initialization bits for the Serial EEPROM Control Register */ |
48a4d521 AB |
131 | #define DAQBOARD2000_SECRProgPinHi 0x8001767e |
132 | #define DAQBOARD2000_SECRProgPinLo 0x8000767e | |
133 | #define DAQBOARD2000_SECRLocalBusHi 0xc000767e | |
134 | #define DAQBOARD2000_SECRLocalBusLo 0x8000767e | |
135 | #define DAQBOARD2000_SECRReloadHi 0xa000767e | |
136 | #define DAQBOARD2000_SECRReloadLo 0x8000767e | |
137 | ||
2696fb57 | 138 | /* SECR status bits */ |
48a4d521 AB |
139 | #define DAQBOARD2000_EEPROM_PRESENT 0x10000000 |
140 | ||
2696fb57 | 141 | /* CPLD status bits */ |
48a4d521 AB |
142 | #define DAQBOARD2000_CPLD_INIT 0x0002 |
143 | #define DAQBOARD2000_CPLD_DONE 0x0004 | |
144 | ||
2696fb57 | 145 | /* Available ranges */ |
9ced1de6 | 146 | static const struct comedi_lrange range_daqboard2000_ai = { 13, { |
0a85b6f0 MT |
147 | RANGE(-10, 10), |
148 | RANGE(-5, 5), | |
149 | RANGE(-2.5, | |
150 | 2.5), | |
151 | RANGE(-1.25, | |
152 | 1.25), | |
153 | RANGE(-0.625, | |
154 | 0.625), | |
155 | RANGE(-0.3125, | |
156 | 0.3125), | |
157 | RANGE(-0.156, | |
158 | 0.156), | |
159 | RANGE(0, 10), | |
160 | RANGE(0, 5), | |
161 | RANGE(0, 2.5), | |
162 | RANGE(0, 1.25), | |
163 | RANGE(0, | |
164 | 0.625), | |
165 | RANGE(0, | |
166 | 0.3125) | |
167 | } | |
48a4d521 AB |
168 | }; |
169 | ||
9ced1de6 | 170 | static const struct comedi_lrange range_daqboard2000_ao = { 1, { |
0a85b6f0 MT |
171 | RANGE(-10, 10) |
172 | } | |
48a4d521 AB |
173 | }; |
174 | ||
79c7b392 | 175 | struct daqboard2000_hw { |
2696fb57 BP |
176 | volatile u16 acqControl; /* 0x00 */ |
177 | volatile u16 acqScanListFIFO; /* 0x02 */ | |
178 | volatile u32 acqPacerClockDivLow; /* 0x04 */ | |
179 | ||
180 | volatile u16 acqScanCounter; /* 0x08 */ | |
181 | volatile u16 acqPacerClockDivHigh; /* 0x0a */ | |
182 | volatile u16 acqTriggerCount; /* 0x0c */ | |
183 | volatile u16 fill2; /* 0x0e */ | |
184 | volatile u16 acqResultsFIFO; /* 0x10 */ | |
185 | volatile u16 fill3; /* 0x12 */ | |
186 | volatile u16 acqResultsShadow; /* 0x14 */ | |
187 | volatile u16 fill4; /* 0x16 */ | |
188 | volatile u16 acqAdcResult; /* 0x18 */ | |
189 | volatile u16 fill5; /* 0x1a */ | |
190 | volatile u16 dacScanCounter; /* 0x1c */ | |
191 | volatile u16 fill6; /* 0x1e */ | |
192 | ||
193 | volatile u16 dacControl; /* 0x20 */ | |
194 | volatile u16 fill7; /* 0x22 */ | |
195 | volatile s16 dacFIFO; /* 0x24 */ | |
196 | volatile u16 fill8[2]; /* 0x26 */ | |
197 | volatile u16 dacPacerClockDiv; /* 0x2a */ | |
198 | volatile u16 refDacs; /* 0x2c */ | |
199 | volatile u16 fill9; /* 0x2e */ | |
200 | ||
201 | volatile u16 dioControl; /* 0x30 */ | |
202 | volatile s16 dioP3hsioData; /* 0x32 */ | |
203 | volatile u16 dioP3Control; /* 0x34 */ | |
204 | volatile u16 calEepromControl; /* 0x36 */ | |
205 | volatile s16 dacSetting[4]; /* 0x38 */ | |
206 | volatile s16 dioP2ExpansionIO8Bit[32]; /* 0x40 */ | |
207 | ||
208 | volatile u16 ctrTmrControl; /* 0x80 */ | |
209 | volatile u16 fill10[3]; /* 0x82 */ | |
210 | volatile s16 ctrInput[4]; /* 0x88 */ | |
211 | volatile u16 fill11[8]; /* 0x90 */ | |
212 | volatile u16 timerDivisor[2]; /* 0xa0 */ | |
213 | volatile u16 fill12[6]; /* 0xa4 */ | |
214 | ||
215 | volatile u16 dmaControl; /* 0xb0 */ | |
216 | volatile u16 trigControl; /* 0xb2 */ | |
217 | volatile u16 fill13[2]; /* 0xb4 */ | |
218 | volatile u16 calEeprom; /* 0xb8 */ | |
219 | volatile u16 acqDigitalMark; /* 0xba */ | |
220 | volatile u16 trigDacs; /* 0xbc */ | |
221 | volatile u16 fill14; /* 0xbe */ | |
222 | volatile s16 dioP2ExpansionIO16Bit[32]; /* 0xc0 */ | |
79c7b392 | 223 | }; |
48a4d521 AB |
224 | |
225 | /* Scan Sequencer programming */ | |
226 | #define DAQBOARD2000_SeqStartScanList 0x0011 | |
227 | #define DAQBOARD2000_SeqStopScanList 0x0010 | |
228 | ||
2696fb57 | 229 | /* Prepare for acquisition */ |
48a4d521 AB |
230 | #define DAQBOARD2000_AcqResetScanListFifo 0x0004 |
231 | #define DAQBOARD2000_AcqResetResultsFifo 0x0002 | |
232 | #define DAQBOARD2000_AcqResetConfigPipe 0x0001 | |
233 | ||
2696fb57 | 234 | /* Acqusition status bits */ |
48a4d521 AB |
235 | #define DAQBOARD2000_AcqResultsFIFOMore1Sample 0x0001 |
236 | #define DAQBOARD2000_AcqResultsFIFOHasValidData 0x0002 | |
237 | #define DAQBOARD2000_AcqResultsFIFOOverrun 0x0004 | |
238 | #define DAQBOARD2000_AcqLogicScanning 0x0008 | |
239 | #define DAQBOARD2000_AcqConfigPipeFull 0x0010 | |
240 | #define DAQBOARD2000_AcqScanListFIFOEmpty 0x0020 | |
241 | #define DAQBOARD2000_AcqAdcNotReady 0x0040 | |
242 | #define DAQBOARD2000_ArbitrationFailure 0x0080 | |
243 | #define DAQBOARD2000_AcqPacerOverrun 0x0100 | |
244 | #define DAQBOARD2000_DacPacerOverrun 0x0200 | |
245 | #define DAQBOARD2000_AcqHardwareError 0x01c0 | |
246 | ||
2696fb57 | 247 | /* Scan Sequencer programming */ |
48a4d521 AB |
248 | #define DAQBOARD2000_SeqStartScanList 0x0011 |
249 | #define DAQBOARD2000_SeqStopScanList 0x0010 | |
250 | ||
251 | /* Pacer Clock Control */ | |
252 | #define DAQBOARD2000_AdcPacerInternal 0x0030 | |
253 | #define DAQBOARD2000_AdcPacerExternal 0x0032 | |
254 | #define DAQBOARD2000_AdcPacerEnable 0x0031 | |
255 | #define DAQBOARD2000_AdcPacerEnableDacPacer 0x0034 | |
256 | #define DAQBOARD2000_AdcPacerDisable 0x0030 | |
257 | #define DAQBOARD2000_AdcPacerNormalMode 0x0060 | |
258 | #define DAQBOARD2000_AdcPacerCompatibilityMode 0x0061 | |
259 | #define DAQBOARD2000_AdcPacerInternalOutEnable 0x0008 | |
260 | #define DAQBOARD2000_AdcPacerExternalRising 0x0100 | |
261 | ||
2696fb57 | 262 | /* DAC status */ |
48a4d521 AB |
263 | #define DAQBOARD2000_DacFull 0x0001 |
264 | #define DAQBOARD2000_RefBusy 0x0002 | |
265 | #define DAQBOARD2000_TrgBusy 0x0004 | |
266 | #define DAQBOARD2000_CalBusy 0x0008 | |
267 | #define DAQBOARD2000_Dac0Busy 0x0010 | |
268 | #define DAQBOARD2000_Dac1Busy 0x0020 | |
269 | #define DAQBOARD2000_Dac2Busy 0x0040 | |
270 | #define DAQBOARD2000_Dac3Busy 0x0080 | |
271 | ||
2696fb57 | 272 | /* DAC control */ |
48a4d521 AB |
273 | #define DAQBOARD2000_Dac0Enable 0x0021 |
274 | #define DAQBOARD2000_Dac1Enable 0x0031 | |
275 | #define DAQBOARD2000_Dac2Enable 0x0041 | |
276 | #define DAQBOARD2000_Dac3Enable 0x0051 | |
277 | #define DAQBOARD2000_DacEnableBit 0x0001 | |
278 | #define DAQBOARD2000_Dac0Disable 0x0020 | |
279 | #define DAQBOARD2000_Dac1Disable 0x0030 | |
280 | #define DAQBOARD2000_Dac2Disable 0x0040 | |
281 | #define DAQBOARD2000_Dac3Disable 0x0050 | |
282 | #define DAQBOARD2000_DacResetFifo 0x0004 | |
283 | #define DAQBOARD2000_DacPatternDisable 0x0060 | |
284 | #define DAQBOARD2000_DacPatternEnable 0x0061 | |
285 | #define DAQBOARD2000_DacSelectSignedData 0x0002 | |
286 | #define DAQBOARD2000_DacSelectUnsignedData 0x0000 | |
287 | ||
288 | /* Trigger Control */ | |
289 | #define DAQBOARD2000_TrigAnalog 0x0000 | |
290 | #define DAQBOARD2000_TrigTTL 0x0010 | |
291 | #define DAQBOARD2000_TrigTransHiLo 0x0004 | |
292 | #define DAQBOARD2000_TrigTransLoHi 0x0000 | |
293 | #define DAQBOARD2000_TrigAbove 0x0000 | |
294 | #define DAQBOARD2000_TrigBelow 0x0004 | |
295 | #define DAQBOARD2000_TrigLevelSense 0x0002 | |
296 | #define DAQBOARD2000_TrigEdgeSense 0x0000 | |
297 | #define DAQBOARD2000_TrigEnable 0x0001 | |
298 | #define DAQBOARD2000_TrigDisable 0x0000 | |
299 | ||
2696fb57 | 300 | /* Reference Dac Selection */ |
48a4d521 AB |
301 | #define DAQBOARD2000_PosRefDacSelect 0x0100 |
302 | #define DAQBOARD2000_NegRefDacSelect 0x0000 | |
303 | ||
0a85b6f0 MT |
304 | static int daqboard2000_attach(struct comedi_device *dev, |
305 | struct comedi_devconfig *it); | |
da91b269 | 306 | static int daqboard2000_detach(struct comedi_device *dev); |
48a4d521 | 307 | |
139dfbdf | 308 | static struct comedi_driver driver_daqboard2000 = { |
68c3dbff BP |
309 | .driver_name = "daqboard2000", |
310 | .module = THIS_MODULE, | |
311 | .attach = daqboard2000_attach, | |
312 | .detach = daqboard2000_detach, | |
48a4d521 AB |
313 | }; |
314 | ||
9da18ff8 | 315 | struct daq200_boardtype { |
48a4d521 AB |
316 | const char *name; |
317 | int id; | |
9da18ff8 BP |
318 | }; |
319 | static const struct daq200_boardtype boardtypes[] = { | |
48a4d521 AB |
320 | {"ids2", DAQBOARD2000_SUBSYSTEM_IDS2}, |
321 | {"ids4", DAQBOARD2000_SUBSYSTEM_IDS4}, | |
322 | }; | |
323 | ||
9da18ff8 BP |
324 | #define n_boardtypes (sizeof(boardtypes)/sizeof(struct daq200_boardtype)) |
325 | #define this_board ((const struct daq200_boardtype *)dev->board_ptr) | |
48a4d521 AB |
326 | |
327 | static DEFINE_PCI_DEVICE_TABLE(daqboard2000_pci_table) = { | |
0a85b6f0 MT |
328 | { |
329 | 0x1616, 0x0409, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
330 | 0} | |
48a4d521 AB |
331 | }; |
332 | ||
333 | MODULE_DEVICE_TABLE(pci, daqboard2000_pci_table); | |
334 | ||
b3653681 | 335 | struct daqboard2000_private { |
48a4d521 AB |
336 | enum { |
337 | card_daqboard_2000 | |
338 | } card; | |
339 | struct pci_dev *pci_dev; | |
340 | void *daq; | |
341 | void *plx; | |
342 | int got_regions; | |
790c5541 | 343 | unsigned int ao_readback[2]; |
b3653681 | 344 | }; |
48a4d521 | 345 | |
b3653681 | 346 | #define devpriv ((struct daqboard2000_private *)dev->private) |
48a4d521 | 347 | |
da91b269 | 348 | static void writeAcqScanListEntry(struct comedi_device *dev, u16 entry) |
48a4d521 | 349 | { |
79c7b392 | 350 | struct daqboard2000_hw *fpga = devpriv->daq; |
48a4d521 | 351 | |
5f74ea14 | 352 | /* udelay(4); */ |
48a4d521 | 353 | fpga->acqScanListFIFO = entry & 0x00ff; |
5f74ea14 | 354 | /* udelay(4); */ |
48a4d521 AB |
355 | fpga->acqScanListFIFO = (entry >> 8) & 0x00ff; |
356 | } | |
357 | ||
da91b269 | 358 | static void setup_sampling(struct comedi_device *dev, int chan, int gain) |
48a4d521 AB |
359 | { |
360 | u16 word0, word1, word2, word3; | |
361 | ||
362 | /* Channel 0-7 diff, channel 8-23 single ended */ | |
363 | word0 = 0; | |
364 | word1 = 0x0004; /* Last scan */ | |
365 | word2 = (chan << 6) & 0x00c0; | |
366 | switch (chan / 4) { | |
367 | case 0: | |
368 | word3 = 0x0001; | |
369 | break; | |
370 | case 1: | |
371 | word3 = 0x0002; | |
372 | break; | |
373 | case 2: | |
374 | word3 = 0x0005; | |
375 | break; | |
376 | case 3: | |
377 | word3 = 0x0006; | |
378 | break; | |
379 | case 4: | |
380 | word3 = 0x0041; | |
381 | break; | |
382 | case 5: | |
383 | word3 = 0x0042; | |
384 | break; | |
385 | default: | |
386 | word3 = 0; | |
387 | break; | |
388 | } | |
389 | /* | |
390 | dev->eeprom.correctionDACSE[i][j][k].offset = 0x800; | |
391 | dev->eeprom.correctionDACSE[i][j][k].gain = 0xc00; | |
392 | */ | |
393 | /* These should be read from EEPROM */ | |
394 | word2 |= 0x0800; | |
395 | word3 |= 0xc000; | |
396 | /* printk("%d %4.4x %4.4x %4.4x %4.4x\n", chan, word0, word1, word2, word3);*/ | |
397 | writeAcqScanListEntry(dev, word0); | |
398 | writeAcqScanListEntry(dev, word1); | |
399 | writeAcqScanListEntry(dev, word2); | |
400 | writeAcqScanListEntry(dev, word3); | |
401 | } | |
402 | ||
0a85b6f0 MT |
403 | static int daqboard2000_ai_insn_read(struct comedi_device *dev, |
404 | struct comedi_subdevice *s, | |
405 | struct comedi_insn *insn, | |
406 | unsigned int *data) | |
48a4d521 AB |
407 | { |
408 | int i; | |
79c7b392 | 409 | struct daqboard2000_hw *fpga = devpriv->daq; |
48a4d521 AB |
410 | int gain, chan, timeout; |
411 | ||
412 | fpga->acqControl = | |
0a85b6f0 MT |
413 | DAQBOARD2000_AcqResetScanListFifo | |
414 | DAQBOARD2000_AcqResetResultsFifo | DAQBOARD2000_AcqResetConfigPipe; | |
48a4d521 AB |
415 | |
416 | /* If pacer clock is not set to some high value (> 10 us), we | |
417 | risk multiple samples to be put into the result FIFO. */ | |
418 | fpga->acqPacerClockDivLow = 1000000; /* 1 second, should be long enough */ | |
419 | fpga->acqPacerClockDivHigh = 0; | |
420 | ||
421 | gain = CR_RANGE(insn->chanspec); | |
422 | chan = CR_CHAN(insn->chanspec); | |
423 | ||
424 | /* This doesn't look efficient. I decided to take the conservative | |
425 | * approach when I did the insn conversion. Perhaps it would be | |
426 | * better to have broken it completely, then someone would have been | |
427 | * forced to fix it. --ds */ | |
428 | for (i = 0; i < insn->n; i++) { | |
429 | setup_sampling(dev, chan, gain); | |
430 | /* Enable reading from the scanlist FIFO */ | |
431 | fpga->acqControl = DAQBOARD2000_SeqStartScanList; | |
432 | for (timeout = 0; timeout < 20; timeout++) { | |
433 | if (fpga->acqControl & DAQBOARD2000_AcqConfigPipeFull) { | |
434 | break; | |
435 | } | |
5f74ea14 | 436 | /* udelay(2); */ |
48a4d521 AB |
437 | } |
438 | fpga->acqControl = DAQBOARD2000_AdcPacerEnable; | |
439 | for (timeout = 0; timeout < 20; timeout++) { | |
440 | if (fpga->acqControl & DAQBOARD2000_AcqLogicScanning) { | |
441 | break; | |
442 | } | |
5f74ea14 | 443 | /* udelay(2); */ |
48a4d521 AB |
444 | } |
445 | for (timeout = 0; timeout < 20; timeout++) { | |
0a85b6f0 MT |
446 | if (fpga->acqControl & |
447 | DAQBOARD2000_AcqResultsFIFOHasValidData) { | |
48a4d521 AB |
448 | break; |
449 | } | |
5f74ea14 | 450 | /* udelay(2); */ |
48a4d521 AB |
451 | } |
452 | data[i] = fpga->acqResultsFIFO; | |
453 | fpga->acqControl = DAQBOARD2000_AdcPacerDisable; | |
454 | fpga->acqControl = DAQBOARD2000_SeqStopScanList; | |
455 | } | |
456 | ||
457 | return i; | |
458 | } | |
459 | ||
0a85b6f0 MT |
460 | static int daqboard2000_ao_insn_read(struct comedi_device *dev, |
461 | struct comedi_subdevice *s, | |
462 | struct comedi_insn *insn, | |
463 | unsigned int *data) | |
48a4d521 AB |
464 | { |
465 | int i; | |
466 | int chan = CR_CHAN(insn->chanspec); | |
467 | ||
468 | for (i = 0; i < insn->n; i++) { | |
469 | data[i] = devpriv->ao_readback[chan]; | |
470 | } | |
471 | ||
472 | return i; | |
473 | } | |
474 | ||
0a85b6f0 MT |
475 | static int daqboard2000_ao_insn_write(struct comedi_device *dev, |
476 | struct comedi_subdevice *s, | |
477 | struct comedi_insn *insn, | |
478 | unsigned int *data) | |
48a4d521 AB |
479 | { |
480 | int i; | |
481 | int chan = CR_CHAN(insn->chanspec); | |
79c7b392 | 482 | struct daqboard2000_hw *fpga = devpriv->daq; |
48a4d521 AB |
483 | int timeout; |
484 | ||
485 | for (i = 0; i < insn->n; i++) { | |
486 | /* | |
487 | * OK, since it works OK without enabling the DAC's, let's keep | |
488 | * it as simple as possible... | |
489 | */ | |
5f74ea14 | 490 | /* fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; udelay(1000); */ |
48a4d521 AB |
491 | fpga->dacSetting[chan] = data[i]; |
492 | for (timeout = 0; timeout < 20; timeout++) { | |
493 | if ((fpga->dacControl & ((chan + 1) * 0x0010)) == 0) { | |
494 | break; | |
495 | } | |
5f74ea14 | 496 | /* udelay(2); */ |
48a4d521 AB |
497 | } |
498 | devpriv->ao_readback[chan] = data[i]; | |
499 | /* | |
500 | * Since we never enabled the DAC's, we don't need to disable it... | |
5f74ea14 | 501 | * fpga->dacControl = (chan + 2) * 0x0010 | 0x0000; udelay(1000); |
48a4d521 AB |
502 | */ |
503 | } | |
504 | ||
505 | return i; | |
506 | } | |
507 | ||
da91b269 | 508 | static void daqboard2000_resetLocalBus(struct comedi_device *dev) |
48a4d521 AB |
509 | { |
510 | printk("daqboard2000_resetLocalBus\n"); | |
511 | writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c); | |
5f74ea14 | 512 | udelay(10000); |
48a4d521 | 513 | writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c); |
5f74ea14 | 514 | udelay(10000); |
48a4d521 AB |
515 | } |
516 | ||
da91b269 | 517 | static void daqboard2000_reloadPLX(struct comedi_device *dev) |
48a4d521 AB |
518 | { |
519 | printk("daqboard2000_reloadPLX\n"); | |
520 | writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c); | |
5f74ea14 | 521 | udelay(10000); |
48a4d521 | 522 | writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c); |
5f74ea14 | 523 | udelay(10000); |
48a4d521 | 524 | writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c); |
5f74ea14 | 525 | udelay(10000); |
48a4d521 AB |
526 | } |
527 | ||
da91b269 | 528 | static void daqboard2000_pulseProgPin(struct comedi_device *dev) |
48a4d521 AB |
529 | { |
530 | printk("daqboard2000_pulseProgPin 1\n"); | |
531 | writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c); | |
5f74ea14 | 532 | udelay(10000); |
48a4d521 | 533 | writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c); |
0a85b6f0 | 534 | udelay(10000); /* Not in the original code, but I like symmetry... */ |
48a4d521 AB |
535 | } |
536 | ||
da91b269 | 537 | static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask) |
48a4d521 AB |
538 | { |
539 | int result = 0; | |
540 | int i; | |
541 | int cpld; | |
542 | ||
543 | /* timeout after 50 tries -> 5ms */ | |
544 | for (i = 0; i < 50; i++) { | |
545 | cpld = readw(devpriv->daq + 0x1000); | |
546 | if ((cpld & mask) == mask) { | |
547 | result = 1; | |
548 | break; | |
549 | } | |
5f74ea14 | 550 | udelay(100); |
48a4d521 | 551 | } |
5f74ea14 | 552 | udelay(5); |
48a4d521 AB |
553 | return result; |
554 | } | |
555 | ||
da91b269 | 556 | static int daqboard2000_writeCPLD(struct comedi_device *dev, int data) |
48a4d521 AB |
557 | { |
558 | int result = 0; | |
559 | ||
5f74ea14 | 560 | udelay(10); |
48a4d521 AB |
561 | writew(data, devpriv->daq + 0x1000); |
562 | if ((readw(devpriv->daq + 0x1000) & DAQBOARD2000_CPLD_INIT) == | |
0a85b6f0 | 563 | DAQBOARD2000_CPLD_INIT) { |
48a4d521 AB |
564 | result = 1; |
565 | } | |
566 | return result; | |
567 | } | |
568 | ||
da91b269 | 569 | static int initialize_daqboard2000(struct comedi_device *dev, |
0a85b6f0 | 570 | unsigned char *cpld_array, int len) |
48a4d521 AB |
571 | { |
572 | int result = -EIO; | |
573 | /* Read the serial EEPROM control register */ | |
574 | int secr; | |
575 | int retry; | |
576 | int i; | |
577 | ||
578 | /* Check to make sure the serial eeprom is present on the board */ | |
579 | secr = readl(devpriv->plx + 0x6c); | |
580 | if (!(secr & DAQBOARD2000_EEPROM_PRESENT)) { | |
581 | #ifdef DEBUG_EEPROM | |
582 | printk("no serial eeprom\n"); | |
583 | #endif | |
584 | return -EIO; | |
585 | } | |
586 | ||
587 | for (retry = 0; retry < 3; retry++) { | |
588 | #ifdef DEBUG_EEPROM | |
589 | printk("Programming EEPROM try %x\n", retry); | |
590 | #endif | |
591 | ||
592 | daqboard2000_resetLocalBus(dev); | |
593 | daqboard2000_reloadPLX(dev); | |
594 | daqboard2000_pulseProgPin(dev); | |
595 | if (daqboard2000_pollCPLD(dev, DAQBOARD2000_CPLD_INIT)) { | |
596 | for (i = 0; i < len; i++) { | |
597 | if (cpld_array[i] == 0xff | |
0a85b6f0 | 598 | && cpld_array[i + 1] == 0x20) { |
48a4d521 AB |
599 | #ifdef DEBUG_EEPROM |
600 | printk("Preamble found at %d\n", i); | |
601 | #endif | |
602 | break; | |
603 | } | |
604 | } | |
605 | for (; i < len; i += 2) { | |
606 | int data = | |
0a85b6f0 | 607 | (cpld_array[i] << 8) + cpld_array[i + 1]; |
48a4d521 AB |
608 | if (!daqboard2000_writeCPLD(dev, data)) { |
609 | break; | |
610 | } | |
611 | } | |
612 | if (i >= len) { | |
613 | #ifdef DEBUG_EEPROM | |
614 | printk("Programmed\n"); | |
615 | #endif | |
616 | daqboard2000_resetLocalBus(dev); | |
617 | daqboard2000_reloadPLX(dev); | |
618 | result = 0; | |
619 | break; | |
620 | } | |
621 | } | |
622 | } | |
623 | return result; | |
624 | } | |
625 | ||
da91b269 | 626 | static void daqboard2000_adcStopDmaTransfer(struct comedi_device *dev) |
48a4d521 AB |
627 | { |
628 | /* printk("Implement: daqboard2000_adcStopDmaTransfer\n");*/ | |
629 | } | |
630 | ||
da91b269 | 631 | static void daqboard2000_adcDisarm(struct comedi_device *dev) |
48a4d521 | 632 | { |
79c7b392 | 633 | struct daqboard2000_hw *fpga = devpriv->daq; |
48a4d521 AB |
634 | |
635 | /* Disable hardware triggers */ | |
5f74ea14 | 636 | udelay(2); |
48a4d521 | 637 | fpga->trigControl = DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable; |
5f74ea14 | 638 | udelay(2); |
48a4d521 AB |
639 | fpga->trigControl = DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable; |
640 | ||
641 | /* Stop the scan list FIFO from loading the configuration pipe */ | |
5f74ea14 | 642 | udelay(2); |
48a4d521 AB |
643 | fpga->acqControl = DAQBOARD2000_SeqStopScanList; |
644 | ||
645 | /* Stop the pacer clock */ | |
5f74ea14 | 646 | udelay(2); |
48a4d521 AB |
647 | fpga->acqControl = DAQBOARD2000_AdcPacerDisable; |
648 | ||
649 | /* Stop the input dma (abort channel 1) */ | |
650 | daqboard2000_adcStopDmaTransfer(dev); | |
651 | } | |
652 | ||
da91b269 | 653 | static void daqboard2000_activateReferenceDacs(struct comedi_device *dev) |
48a4d521 | 654 | { |
79c7b392 | 655 | struct daqboard2000_hw *fpga = devpriv->daq; |
48a4d521 AB |
656 | int timeout; |
657 | ||
2696fb57 | 658 | /* Set the + reference dac value in the FPGA */ |
48a4d521 AB |
659 | fpga->refDacs = 0x80 | DAQBOARD2000_PosRefDacSelect; |
660 | for (timeout = 0; timeout < 20; timeout++) { | |
661 | if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) { | |
662 | break; | |
663 | } | |
5f74ea14 | 664 | udelay(2); |
48a4d521 AB |
665 | } |
666 | /* printk("DAQBOARD2000_PosRefDacSelect %d\n", timeout);*/ | |
667 | ||
2696fb57 | 668 | /* Set the - reference dac value in the FPGA */ |
48a4d521 AB |
669 | fpga->refDacs = 0x80 | DAQBOARD2000_NegRefDacSelect; |
670 | for (timeout = 0; timeout < 20; timeout++) { | |
671 | if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) { | |
672 | break; | |
673 | } | |
5f74ea14 | 674 | udelay(2); |
48a4d521 AB |
675 | } |
676 | /* printk("DAQBOARD2000_NegRefDacSelect %d\n", timeout);*/ | |
677 | } | |
678 | ||
da91b269 | 679 | static void daqboard2000_initializeCtrs(struct comedi_device *dev) |
48a4d521 AB |
680 | { |
681 | /* printk("Implement: daqboard2000_initializeCtrs\n");*/ | |
682 | } | |
683 | ||
da91b269 | 684 | static void daqboard2000_initializeTmrs(struct comedi_device *dev) |
48a4d521 AB |
685 | { |
686 | /* printk("Implement: daqboard2000_initializeTmrs\n");*/ | |
687 | } | |
688 | ||
da91b269 | 689 | static void daqboard2000_dacDisarm(struct comedi_device *dev) |
48a4d521 AB |
690 | { |
691 | /* printk("Implement: daqboard2000_dacDisarm\n");*/ | |
692 | } | |
693 | ||
da91b269 | 694 | static void daqboard2000_initializeAdc(struct comedi_device *dev) |
48a4d521 AB |
695 | { |
696 | daqboard2000_adcDisarm(dev); | |
697 | daqboard2000_activateReferenceDacs(dev); | |
698 | daqboard2000_initializeCtrs(dev); | |
699 | daqboard2000_initializeTmrs(dev); | |
700 | } | |
701 | ||
da91b269 | 702 | static void daqboard2000_initializeDac(struct comedi_device *dev) |
48a4d521 AB |
703 | { |
704 | daqboard2000_dacDisarm(dev); | |
705 | } | |
706 | ||
707 | /* | |
708 | The test command, REMOVE!!: | |
709 | ||
710 | rmmod daqboard2000 ; rmmod comedi; make install ; modprobe daqboard2000; /usr/sbin/comedi_config /dev/comedi0 daqboard/2000 ; tail -40 /var/log/messages | |
711 | */ | |
712 | ||
713 | static int daqboard2000_8255_cb(int dir, int port, int data, | |
0a85b6f0 | 714 | unsigned long ioaddr) |
48a4d521 AB |
715 | { |
716 | int result = 0; | |
717 | if (dir) { | |
718 | writew(data, ((void *)ioaddr) + port * 2); | |
719 | result = 0; | |
720 | } else { | |
721 | result = readw(((void *)ioaddr) + port * 2); | |
722 | } | |
723 | /* | |
724 | printk("daqboard2000_8255_cb %x %d %d %2.2x -> %2.2x\n", | |
725 | arg, dir, port, data, result); | |
726 | */ | |
727 | return result; | |
728 | } | |
729 | ||
0a85b6f0 MT |
730 | static int daqboard2000_attach(struct comedi_device *dev, |
731 | struct comedi_devconfig *it) | |
48a4d521 AB |
732 | { |
733 | int result = 0; | |
34c43922 | 734 | struct comedi_subdevice *s; |
48a4d521 AB |
735 | struct pci_dev *card = NULL; |
736 | void *aux_data; | |
737 | unsigned int aux_len; | |
738 | int bus, slot; | |
739 | ||
740 | printk("comedi%d: daqboard2000:", dev->minor); | |
741 | ||
742 | bus = it->options[0]; | |
743 | slot = it->options[1]; | |
744 | ||
b3653681 | 745 | result = alloc_private(dev, sizeof(struct daqboard2000_private)); |
48a4d521 AB |
746 | if (result < 0) { |
747 | return -ENOMEM; | |
748 | } | |
749 | for (card = pci_get_device(0x1616, 0x0409, NULL); | |
0a85b6f0 | 750 | card != NULL; card = pci_get_device(0x1616, 0x0409, card)) { |
48a4d521 AB |
751 | if (bus || slot) { |
752 | /* requested particular bus/slot */ | |
753 | if (card->bus->number != bus || | |
0a85b6f0 | 754 | PCI_SLOT(card->devfn) != slot) { |
48a4d521 AB |
755 | continue; |
756 | } | |
757 | } | |
0a85b6f0 | 758 | break; /* found one */ |
48a4d521 AB |
759 | } |
760 | if (!card) { | |
761 | if (bus || slot) | |
762 | printk(" no daqboard2000 found at bus/slot: %d/%d\n", | |
0a85b6f0 | 763 | bus, slot); |
48a4d521 AB |
764 | else |
765 | printk(" no daqboard2000 found\n"); | |
766 | return -EIO; | |
767 | } else { | |
768 | u32 id; | |
769 | int i; | |
770 | devpriv->pci_dev = card; | |
0a85b6f0 MT |
771 | id = ((u32) card-> |
772 | subsystem_device << 16) | card->subsystem_vendor; | |
48a4d521 AB |
773 | for (i = 0; i < n_boardtypes; i++) { |
774 | if (boardtypes[i].id == id) { | |
775 | printk(" %s", boardtypes[i].name); | |
776 | dev->board_ptr = boardtypes + i; | |
777 | } | |
778 | } | |
779 | if (!dev->board_ptr) { | |
0a85b6f0 MT |
780 | printk |
781 | (" unknown subsystem id %08x (pretend it is an ids2)", | |
782 | id); | |
48a4d521 AB |
783 | dev->board_ptr = boardtypes; |
784 | } | |
785 | } | |
786 | ||
c3744138 BP |
787 | result = comedi_pci_enable(card, "daqboard2000"); |
788 | if (result < 0) { | |
48a4d521 AB |
789 | printk(" failed to enable PCI device and request regions\n"); |
790 | return -EIO; | |
791 | } | |
792 | devpriv->got_regions = 1; | |
793 | devpriv->plx = | |
0a85b6f0 | 794 | ioremap(pci_resource_start(card, 0), DAQBOARD2000_PLX_SIZE); |
48a4d521 | 795 | devpriv->daq = |
0a85b6f0 | 796 | ioremap(pci_resource_start(card, 2), DAQBOARD2000_DAQ_SIZE); |
48a4d521 AB |
797 | if (!devpriv->plx || !devpriv->daq) { |
798 | return -ENOMEM; | |
799 | } | |
800 | ||
801 | result = alloc_subdevices(dev, 3); | |
802 | if (result < 0) | |
803 | goto out; | |
804 | ||
805 | readl(devpriv->plx + 0x6c); | |
806 | ||
807 | /* | |
808 | u8 interrupt; | |
809 | Windows code does restore interrupts, but since we don't use them... | |
810 | pci_read_config_byte(card, PCI_INTERRUPT_LINE, &interrupt); | |
811 | printk("Interrupt before is: %x\n", interrupt); | |
812 | */ | |
813 | ||
814 | aux_data = comedi_aux_data(it->options, 0); | |
815 | aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]; | |
816 | ||
817 | if (aux_data && aux_len) { | |
818 | result = initialize_daqboard2000(dev, aux_data, aux_len); | |
819 | } else { | |
820 | printk("no FPGA initialization code, aborting\n"); | |
821 | result = -EIO; | |
822 | } | |
823 | if (result < 0) | |
824 | goto out; | |
825 | daqboard2000_initializeAdc(dev); | |
826 | daqboard2000_initializeDac(dev); | |
827 | /* | |
828 | Windows code does restore interrupts, but since we don't use them... | |
829 | pci_read_config_byte(card, PCI_INTERRUPT_LINE, &interrupt); | |
830 | printk("Interrupt after is: %x\n", interrupt); | |
831 | */ | |
832 | ||
833 | dev->iobase = (unsigned long)devpriv->daq; | |
834 | ||
835 | dev->board_name = this_board->name; | |
836 | ||
837 | s = dev->subdevices + 0; | |
838 | /* ai subdevice */ | |
839 | s->type = COMEDI_SUBD_AI; | |
840 | s->subdev_flags = SDF_READABLE | SDF_GROUND; | |
841 | s->n_chan = 24; | |
842 | s->maxdata = 0xffff; | |
843 | s->insn_read = daqboard2000_ai_insn_read; | |
844 | s->range_table = &range_daqboard2000_ai; | |
845 | ||
846 | s = dev->subdevices + 1; | |
847 | /* ao subdevice */ | |
848 | s->type = COMEDI_SUBD_AO; | |
849 | s->subdev_flags = SDF_WRITABLE; | |
850 | s->n_chan = 2; | |
851 | s->maxdata = 0xffff; | |
852 | s->insn_read = daqboard2000_ao_insn_read; | |
853 | s->insn_write = daqboard2000_ao_insn_write; | |
854 | s->range_table = &range_daqboard2000_ao; | |
855 | ||
856 | s = dev->subdevices + 2; | |
857 | result = subdev_8255_init(dev, s, daqboard2000_8255_cb, | |
0a85b6f0 | 858 | (unsigned long)(dev->iobase + 0x40)); |
48a4d521 AB |
859 | |
860 | printk("\n"); | |
0a85b6f0 | 861 | out: |
48a4d521 AB |
862 | return result; |
863 | } | |
864 | ||
da91b269 | 865 | static int daqboard2000_detach(struct comedi_device *dev) |
48a4d521 AB |
866 | { |
867 | printk("comedi%d: daqboard2000: remove\n", dev->minor); | |
868 | ||
869 | if (dev->subdevices) | |
870 | subdev_8255_cleanup(dev, dev->subdevices + 2); | |
871 | ||
872 | if (dev->irq) { | |
873 | free_irq(dev->irq, dev); | |
874 | } | |
875 | if (devpriv) { | |
876 | if (devpriv->daq) | |
877 | iounmap(devpriv->daq); | |
878 | if (devpriv->plx) | |
879 | iounmap(devpriv->plx); | |
880 | if (devpriv->pci_dev) { | |
881 | if (devpriv->got_regions) { | |
882 | comedi_pci_disable(devpriv->pci_dev); | |
883 | } | |
884 | pci_dev_put(devpriv->pci_dev); | |
885 | } | |
886 | } | |
887 | return 0; | |
888 | } | |
889 | ||
727b286b AT |
890 | static int __devinit driver_daqboard2000_pci_probe(struct pci_dev *dev, |
891 | const struct pci_device_id | |
892 | *ent) | |
893 | { | |
894 | return comedi_pci_auto_config(dev, driver_daqboard2000.driver_name); | |
895 | } | |
896 | ||
897 | static void __devexit driver_daqboard2000_pci_remove(struct pci_dev *dev) | |
898 | { | |
899 | comedi_pci_auto_unconfig(dev); | |
900 | } | |
901 | ||
902 | static struct pci_driver driver_daqboard2000_pci_driver = { | |
903 | .id_table = daqboard2000_pci_table, | |
904 | .probe = &driver_daqboard2000_pci_probe, | |
905 | .remove = __devexit_p(&driver_daqboard2000_pci_remove) | |
906 | }; | |
907 | ||
908 | static int __init driver_daqboard2000_init_module(void) | |
909 | { | |
910 | int retval; | |
911 | ||
912 | retval = comedi_driver_register(&driver_daqboard2000); | |
913 | if (retval < 0) | |
914 | return retval; | |
915 | ||
916 | driver_daqboard2000_pci_driver.name = | |
917 | (char *)driver_daqboard2000.driver_name; | |
918 | return pci_register_driver(&driver_daqboard2000_pci_driver); | |
919 | } | |
920 | ||
921 | static void __exit driver_daqboard2000_cleanup_module(void) | |
922 | { | |
923 | pci_unregister_driver(&driver_daqboard2000_pci_driver); | |
924 | comedi_driver_unregister(&driver_daqboard2000); | |
925 | } | |
926 | ||
927 | module_init(driver_daqboard2000_init_module); | |
928 | module_exit(driver_daqboard2000_cleanup_module); | |
90f703d3 AT |
929 | |
930 | MODULE_AUTHOR("Comedi http://www.comedi.org"); | |
931 | MODULE_DESCRIPTION("Comedi low-level driver"); | |
932 | MODULE_LICENSE("GPL"); |