Commit | Line | Data |
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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 | ||
110 | ||
111 | ||
112 | 999. The card seems to have an incredible amount of capabilities, but | |
113 | trying to reverse engineer them from the Windows source is beyond my | |
114 | patience. | |
115 | ||
116 | ||
117 | */ | |
118 | ||
119 | #include "../comedidev.h" | |
120 | ||
121 | #include <linux/delay.h> | |
122 | ||
123 | #include "comedi_pci.h" | |
124 | #include "8255.h" | |
125 | ||
126 | #define DAQBOARD2000_SUBSYSTEM_IDS2 0x00021616 /* Daqboard/2000 - 2 Dacs */ | |
127 | #define DAQBOARD2000_SUBSYSTEM_IDS4 0x00041616 /* Daqboard/2000 - 4 Dacs */ | |
128 | ||
129 | #define DAQBOARD2000_DAQ_SIZE 0x1002 | |
130 | #define DAQBOARD2000_PLX_SIZE 0x100 | |
131 | ||
132 | // Initialization bits for the Serial EEPROM Control Register | |
133 | #define DAQBOARD2000_SECRProgPinHi 0x8001767e | |
134 | #define DAQBOARD2000_SECRProgPinLo 0x8000767e | |
135 | #define DAQBOARD2000_SECRLocalBusHi 0xc000767e | |
136 | #define DAQBOARD2000_SECRLocalBusLo 0x8000767e | |
137 | #define DAQBOARD2000_SECRReloadHi 0xa000767e | |
138 | #define DAQBOARD2000_SECRReloadLo 0x8000767e | |
139 | ||
140 | // SECR status bits | |
141 | #define DAQBOARD2000_EEPROM_PRESENT 0x10000000 | |
142 | ||
143 | // CPLD status bits | |
144 | #define DAQBOARD2000_CPLD_INIT 0x0002 | |
145 | #define DAQBOARD2000_CPLD_DONE 0x0004 | |
146 | ||
147 | // Available ranges | |
9ced1de6 | 148 | static const struct comedi_lrange range_daqboard2000_ai = { 13, { |
48a4d521 AB |
149 | RANGE(-10, 10), |
150 | RANGE(-5, 5), | |
151 | RANGE(-2.5, 2.5), | |
152 | RANGE(-1.25, 1.25), | |
153 | RANGE(-0.625, 0.625), | |
154 | RANGE(-0.3125, 0.3125), | |
155 | RANGE(-0.156, 0.156), | |
156 | RANGE(0, 10), | |
157 | RANGE(0, 5), | |
158 | RANGE(0, 2.5), | |
159 | RANGE(0, 1.25), | |
160 | RANGE(0, 0.625), | |
161 | RANGE(0, 0.3125) | |
162 | } | |
163 | }; | |
164 | ||
9ced1de6 | 165 | static const struct comedi_lrange range_daqboard2000_ao = { 1, { |
48a4d521 AB |
166 | RANGE(-10, 10) |
167 | } | |
168 | }; | |
169 | ||
170 | typedef struct daqboard2000_hw { | |
171 | volatile u16 acqControl; // 0x00 | |
172 | volatile u16 acqScanListFIFO; // 0x02 | |
173 | volatile u32 acqPacerClockDivLow; // 0x04 | |
174 | ||
175 | volatile u16 acqScanCounter; // 0x08 | |
176 | volatile u16 acqPacerClockDivHigh; // 0x0a | |
177 | volatile u16 acqTriggerCount; // 0x0c | |
178 | volatile u16 fill2; // 0x0e | |
179 | volatile u16 acqResultsFIFO; // 0x10 | |
180 | volatile u16 fill3; // 0x12 | |
181 | volatile u16 acqResultsShadow; // 0x14 | |
182 | volatile u16 fill4; // 0x16 | |
183 | volatile u16 acqAdcResult; // 0x18 | |
184 | volatile u16 fill5; // 0x1a | |
185 | volatile u16 dacScanCounter; // 0x1c | |
186 | volatile u16 fill6; // 0x1e | |
187 | ||
188 | volatile u16 dacControl; // 0x20 | |
189 | volatile u16 fill7; // 0x22 | |
190 | volatile s16 dacFIFO; // 0x24 | |
191 | volatile u16 fill8[2]; // 0x26 | |
192 | volatile u16 dacPacerClockDiv; // 0x2a | |
193 | volatile u16 refDacs; // 0x2c | |
194 | volatile u16 fill9; // 0x2e | |
195 | ||
196 | volatile u16 dioControl; // 0x30 | |
197 | volatile s16 dioP3hsioData; // 0x32 | |
198 | volatile u16 dioP3Control; // 0x34 | |
199 | volatile u16 calEepromControl; // 0x36 | |
200 | volatile s16 dacSetting[4]; // 0x38 | |
201 | volatile s16 dioP2ExpansionIO8Bit[32]; // 0x40 | |
202 | ||
203 | volatile u16 ctrTmrControl; // 0x80 | |
204 | volatile u16 fill10[3]; // 0x82 | |
205 | volatile s16 ctrInput[4]; // 0x88 | |
206 | volatile u16 fill11[8]; // 0x90 | |
207 | volatile u16 timerDivisor[2]; // 0xa0 | |
208 | volatile u16 fill12[6]; // 0xa4 | |
209 | ||
210 | volatile u16 dmaControl; // 0xb0 | |
211 | volatile u16 trigControl; // 0xb2 | |
212 | volatile u16 fill13[2]; // 0xb4 | |
213 | volatile u16 calEeprom; // 0xb8 | |
214 | volatile u16 acqDigitalMark; // 0xba | |
215 | volatile u16 trigDacs; // 0xbc | |
216 | volatile u16 fill14; // 0xbe | |
217 | volatile s16 dioP2ExpansionIO16Bit[32]; // 0xc0 | |
218 | } daqboard2000_hw; | |
219 | ||
220 | /* Scan Sequencer programming */ | |
221 | #define DAQBOARD2000_SeqStartScanList 0x0011 | |
222 | #define DAQBOARD2000_SeqStopScanList 0x0010 | |
223 | ||
224 | // Prepare for acquisition | |
225 | #define DAQBOARD2000_AcqResetScanListFifo 0x0004 | |
226 | #define DAQBOARD2000_AcqResetResultsFifo 0x0002 | |
227 | #define DAQBOARD2000_AcqResetConfigPipe 0x0001 | |
228 | ||
229 | // Acqusition status bits | |
230 | #define DAQBOARD2000_AcqResultsFIFOMore1Sample 0x0001 | |
231 | #define DAQBOARD2000_AcqResultsFIFOHasValidData 0x0002 | |
232 | #define DAQBOARD2000_AcqResultsFIFOOverrun 0x0004 | |
233 | #define DAQBOARD2000_AcqLogicScanning 0x0008 | |
234 | #define DAQBOARD2000_AcqConfigPipeFull 0x0010 | |
235 | #define DAQBOARD2000_AcqScanListFIFOEmpty 0x0020 | |
236 | #define DAQBOARD2000_AcqAdcNotReady 0x0040 | |
237 | #define DAQBOARD2000_ArbitrationFailure 0x0080 | |
238 | #define DAQBOARD2000_AcqPacerOverrun 0x0100 | |
239 | #define DAQBOARD2000_DacPacerOverrun 0x0200 | |
240 | #define DAQBOARD2000_AcqHardwareError 0x01c0 | |
241 | ||
242 | // Scan Sequencer programming | |
243 | #define DAQBOARD2000_SeqStartScanList 0x0011 | |
244 | #define DAQBOARD2000_SeqStopScanList 0x0010 | |
245 | ||
246 | /* Pacer Clock Control */ | |
247 | #define DAQBOARD2000_AdcPacerInternal 0x0030 | |
248 | #define DAQBOARD2000_AdcPacerExternal 0x0032 | |
249 | #define DAQBOARD2000_AdcPacerEnable 0x0031 | |
250 | #define DAQBOARD2000_AdcPacerEnableDacPacer 0x0034 | |
251 | #define DAQBOARD2000_AdcPacerDisable 0x0030 | |
252 | #define DAQBOARD2000_AdcPacerNormalMode 0x0060 | |
253 | #define DAQBOARD2000_AdcPacerCompatibilityMode 0x0061 | |
254 | #define DAQBOARD2000_AdcPacerInternalOutEnable 0x0008 | |
255 | #define DAQBOARD2000_AdcPacerExternalRising 0x0100 | |
256 | ||
257 | // DAC status | |
258 | #define DAQBOARD2000_DacFull 0x0001 | |
259 | #define DAQBOARD2000_RefBusy 0x0002 | |
260 | #define DAQBOARD2000_TrgBusy 0x0004 | |
261 | #define DAQBOARD2000_CalBusy 0x0008 | |
262 | #define DAQBOARD2000_Dac0Busy 0x0010 | |
263 | #define DAQBOARD2000_Dac1Busy 0x0020 | |
264 | #define DAQBOARD2000_Dac2Busy 0x0040 | |
265 | #define DAQBOARD2000_Dac3Busy 0x0080 | |
266 | ||
267 | // DAC control | |
268 | #define DAQBOARD2000_Dac0Enable 0x0021 | |
269 | #define DAQBOARD2000_Dac1Enable 0x0031 | |
270 | #define DAQBOARD2000_Dac2Enable 0x0041 | |
271 | #define DAQBOARD2000_Dac3Enable 0x0051 | |
272 | #define DAQBOARD2000_DacEnableBit 0x0001 | |
273 | #define DAQBOARD2000_Dac0Disable 0x0020 | |
274 | #define DAQBOARD2000_Dac1Disable 0x0030 | |
275 | #define DAQBOARD2000_Dac2Disable 0x0040 | |
276 | #define DAQBOARD2000_Dac3Disable 0x0050 | |
277 | #define DAQBOARD2000_DacResetFifo 0x0004 | |
278 | #define DAQBOARD2000_DacPatternDisable 0x0060 | |
279 | #define DAQBOARD2000_DacPatternEnable 0x0061 | |
280 | #define DAQBOARD2000_DacSelectSignedData 0x0002 | |
281 | #define DAQBOARD2000_DacSelectUnsignedData 0x0000 | |
282 | ||
283 | /* Trigger Control */ | |
284 | #define DAQBOARD2000_TrigAnalog 0x0000 | |
285 | #define DAQBOARD2000_TrigTTL 0x0010 | |
286 | #define DAQBOARD2000_TrigTransHiLo 0x0004 | |
287 | #define DAQBOARD2000_TrigTransLoHi 0x0000 | |
288 | #define DAQBOARD2000_TrigAbove 0x0000 | |
289 | #define DAQBOARD2000_TrigBelow 0x0004 | |
290 | #define DAQBOARD2000_TrigLevelSense 0x0002 | |
291 | #define DAQBOARD2000_TrigEdgeSense 0x0000 | |
292 | #define DAQBOARD2000_TrigEnable 0x0001 | |
293 | #define DAQBOARD2000_TrigDisable 0x0000 | |
294 | ||
295 | // Reference Dac Selection | |
296 | #define DAQBOARD2000_PosRefDacSelect 0x0100 | |
297 | #define DAQBOARD2000_NegRefDacSelect 0x0000 | |
298 | ||
0707bb04 | 299 | static int daqboard2000_attach(struct comedi_device * dev, struct comedi_devconfig * it); |
71b5f4f1 | 300 | static int daqboard2000_detach(struct comedi_device * dev); |
48a4d521 | 301 | |
139dfbdf | 302 | static struct comedi_driver driver_daqboard2000 = { |
48a4d521 AB |
303 | driver_name:"daqboard2000", |
304 | module:THIS_MODULE, | |
305 | attach:daqboard2000_attach, | |
306 | detach:daqboard2000_detach, | |
307 | }; | |
308 | ||
309 | typedef struct { | |
310 | const char *name; | |
311 | int id; | |
312 | } boardtype; | |
313 | static const boardtype boardtypes[] = { | |
314 | {"ids2", DAQBOARD2000_SUBSYSTEM_IDS2}, | |
315 | {"ids4", DAQBOARD2000_SUBSYSTEM_IDS4}, | |
316 | }; | |
317 | ||
318 | #define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype)) | |
319 | #define this_board ((const boardtype *)dev->board_ptr) | |
320 | ||
321 | static DEFINE_PCI_DEVICE_TABLE(daqboard2000_pci_table) = { | |
322 | {0x1616, 0x0409, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
323 | {0} | |
324 | }; | |
325 | ||
326 | MODULE_DEVICE_TABLE(pci, daqboard2000_pci_table); | |
327 | ||
328 | typedef struct { | |
329 | enum { | |
330 | card_daqboard_2000 | |
331 | } card; | |
332 | struct pci_dev *pci_dev; | |
333 | void *daq; | |
334 | void *plx; | |
335 | int got_regions; | |
790c5541 | 336 | unsigned int ao_readback[2]; |
48a4d521 AB |
337 | } daqboard2000_private; |
338 | ||
339 | #define devpriv ((daqboard2000_private*)dev->private) | |
340 | ||
71b5f4f1 | 341 | static void writeAcqScanListEntry(struct comedi_device * dev, u16 entry) |
48a4d521 AB |
342 | { |
343 | daqboard2000_hw *fpga = devpriv->daq; | |
344 | ||
345 | // comedi_udelay(4); | |
346 | fpga->acqScanListFIFO = entry & 0x00ff; | |
347 | // comedi_udelay(4); | |
348 | fpga->acqScanListFIFO = (entry >> 8) & 0x00ff; | |
349 | } | |
350 | ||
71b5f4f1 | 351 | static void setup_sampling(struct comedi_device * dev, int chan, int gain) |
48a4d521 AB |
352 | { |
353 | u16 word0, word1, word2, word3; | |
354 | ||
355 | /* Channel 0-7 diff, channel 8-23 single ended */ | |
356 | word0 = 0; | |
357 | word1 = 0x0004; /* Last scan */ | |
358 | word2 = (chan << 6) & 0x00c0; | |
359 | switch (chan / 4) { | |
360 | case 0: | |
361 | word3 = 0x0001; | |
362 | break; | |
363 | case 1: | |
364 | word3 = 0x0002; | |
365 | break; | |
366 | case 2: | |
367 | word3 = 0x0005; | |
368 | break; | |
369 | case 3: | |
370 | word3 = 0x0006; | |
371 | break; | |
372 | case 4: | |
373 | word3 = 0x0041; | |
374 | break; | |
375 | case 5: | |
376 | word3 = 0x0042; | |
377 | break; | |
378 | default: | |
379 | word3 = 0; | |
380 | break; | |
381 | } | |
382 | /* | |
383 | dev->eeprom.correctionDACSE[i][j][k].offset = 0x800; | |
384 | dev->eeprom.correctionDACSE[i][j][k].gain = 0xc00; | |
385 | */ | |
386 | /* These should be read from EEPROM */ | |
387 | word2 |= 0x0800; | |
388 | word3 |= 0xc000; | |
389 | /* printk("%d %4.4x %4.4x %4.4x %4.4x\n", chan, word0, word1, word2, word3);*/ | |
390 | writeAcqScanListEntry(dev, word0); | |
391 | writeAcqScanListEntry(dev, word1); | |
392 | writeAcqScanListEntry(dev, word2); | |
393 | writeAcqScanListEntry(dev, word3); | |
394 | } | |
395 | ||
34c43922 | 396 | static int daqboard2000_ai_insn_read(struct comedi_device * dev, struct comedi_subdevice * s, |
90035c08 | 397 | struct comedi_insn * insn, unsigned int * data) |
48a4d521 AB |
398 | { |
399 | int i; | |
400 | daqboard2000_hw *fpga = devpriv->daq; | |
401 | int gain, chan, timeout; | |
402 | ||
403 | fpga->acqControl = | |
404 | DAQBOARD2000_AcqResetScanListFifo | | |
405 | DAQBOARD2000_AcqResetResultsFifo | | |
406 | DAQBOARD2000_AcqResetConfigPipe; | |
407 | ||
408 | /* If pacer clock is not set to some high value (> 10 us), we | |
409 | risk multiple samples to be put into the result FIFO. */ | |
410 | fpga->acqPacerClockDivLow = 1000000; /* 1 second, should be long enough */ | |
411 | fpga->acqPacerClockDivHigh = 0; | |
412 | ||
413 | gain = CR_RANGE(insn->chanspec); | |
414 | chan = CR_CHAN(insn->chanspec); | |
415 | ||
416 | /* This doesn't look efficient. I decided to take the conservative | |
417 | * approach when I did the insn conversion. Perhaps it would be | |
418 | * better to have broken it completely, then someone would have been | |
419 | * forced to fix it. --ds */ | |
420 | for (i = 0; i < insn->n; i++) { | |
421 | setup_sampling(dev, chan, gain); | |
422 | /* Enable reading from the scanlist FIFO */ | |
423 | fpga->acqControl = DAQBOARD2000_SeqStartScanList; | |
424 | for (timeout = 0; timeout < 20; timeout++) { | |
425 | if (fpga->acqControl & DAQBOARD2000_AcqConfigPipeFull) { | |
426 | break; | |
427 | } | |
428 | //comedi_udelay(2); | |
429 | } | |
430 | fpga->acqControl = DAQBOARD2000_AdcPacerEnable; | |
431 | for (timeout = 0; timeout < 20; timeout++) { | |
432 | if (fpga->acqControl & DAQBOARD2000_AcqLogicScanning) { | |
433 | break; | |
434 | } | |
435 | //comedi_udelay(2); | |
436 | } | |
437 | for (timeout = 0; timeout < 20; timeout++) { | |
438 | if (fpga-> | |
439 | acqControl & | |
440 | DAQBOARD2000_AcqResultsFIFOHasValidData) { | |
441 | break; | |
442 | } | |
443 | //comedi_udelay(2); | |
444 | } | |
445 | data[i] = fpga->acqResultsFIFO; | |
446 | fpga->acqControl = DAQBOARD2000_AdcPacerDisable; | |
447 | fpga->acqControl = DAQBOARD2000_SeqStopScanList; | |
448 | } | |
449 | ||
450 | return i; | |
451 | } | |
452 | ||
34c43922 | 453 | static int daqboard2000_ao_insn_read(struct comedi_device * dev, struct comedi_subdevice * s, |
90035c08 | 454 | struct comedi_insn * insn, unsigned int * data) |
48a4d521 AB |
455 | { |
456 | int i; | |
457 | int chan = CR_CHAN(insn->chanspec); | |
458 | ||
459 | for (i = 0; i < insn->n; i++) { | |
460 | data[i] = devpriv->ao_readback[chan]; | |
461 | } | |
462 | ||
463 | return i; | |
464 | } | |
465 | ||
34c43922 | 466 | static int daqboard2000_ao_insn_write(struct comedi_device * dev, struct comedi_subdevice * s, |
90035c08 | 467 | struct comedi_insn * insn, unsigned int * data) |
48a4d521 AB |
468 | { |
469 | int i; | |
470 | int chan = CR_CHAN(insn->chanspec); | |
471 | daqboard2000_hw *fpga = devpriv->daq; | |
472 | int timeout; | |
473 | ||
474 | for (i = 0; i < insn->n; i++) { | |
475 | /* | |
476 | * OK, since it works OK without enabling the DAC's, let's keep | |
477 | * it as simple as possible... | |
478 | */ | |
479 | //fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; comedi_udelay(1000); | |
480 | fpga->dacSetting[chan] = data[i]; | |
481 | for (timeout = 0; timeout < 20; timeout++) { | |
482 | if ((fpga->dacControl & ((chan + 1) * 0x0010)) == 0) { | |
483 | break; | |
484 | } | |
485 | //comedi_udelay(2); | |
486 | } | |
487 | devpriv->ao_readback[chan] = data[i]; | |
488 | /* | |
489 | * Since we never enabled the DAC's, we don't need to disable it... | |
490 | * fpga->dacControl = (chan + 2) * 0x0010 | 0x0000; comedi_udelay(1000); | |
491 | */ | |
492 | } | |
493 | ||
494 | return i; | |
495 | } | |
496 | ||
71b5f4f1 | 497 | static void daqboard2000_resetLocalBus(struct comedi_device * dev) |
48a4d521 AB |
498 | { |
499 | printk("daqboard2000_resetLocalBus\n"); | |
500 | writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c); | |
501 | comedi_udelay(10000); | |
502 | writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c); | |
503 | comedi_udelay(10000); | |
504 | } | |
505 | ||
71b5f4f1 | 506 | static void daqboard2000_reloadPLX(struct comedi_device * dev) |
48a4d521 AB |
507 | { |
508 | printk("daqboard2000_reloadPLX\n"); | |
509 | writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c); | |
510 | comedi_udelay(10000); | |
511 | writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c); | |
512 | comedi_udelay(10000); | |
513 | writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c); | |
514 | comedi_udelay(10000); | |
515 | } | |
516 | ||
71b5f4f1 | 517 | static void daqboard2000_pulseProgPin(struct comedi_device * dev) |
48a4d521 AB |
518 | { |
519 | printk("daqboard2000_pulseProgPin 1\n"); | |
520 | writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c); | |
521 | comedi_udelay(10000); | |
522 | writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c); | |
523 | comedi_udelay(10000); /* Not in the original code, but I like symmetry... */ | |
524 | } | |
525 | ||
71b5f4f1 | 526 | static int daqboard2000_pollCPLD(struct comedi_device * dev, int mask) |
48a4d521 AB |
527 | { |
528 | int result = 0; | |
529 | int i; | |
530 | int cpld; | |
531 | ||
532 | /* timeout after 50 tries -> 5ms */ | |
533 | for (i = 0; i < 50; i++) { | |
534 | cpld = readw(devpriv->daq + 0x1000); | |
535 | if ((cpld & mask) == mask) { | |
536 | result = 1; | |
537 | break; | |
538 | } | |
539 | comedi_udelay(100); | |
540 | } | |
541 | comedi_udelay(5); | |
542 | return result; | |
543 | } | |
544 | ||
71b5f4f1 | 545 | static int daqboard2000_writeCPLD(struct comedi_device * dev, int data) |
48a4d521 AB |
546 | { |
547 | int result = 0; | |
548 | ||
549 | comedi_udelay(10); | |
550 | writew(data, devpriv->daq + 0x1000); | |
551 | if ((readw(devpriv->daq + 0x1000) & DAQBOARD2000_CPLD_INIT) == | |
552 | DAQBOARD2000_CPLD_INIT) { | |
553 | result = 1; | |
554 | } | |
555 | return result; | |
556 | } | |
557 | ||
71b5f4f1 | 558 | static int initialize_daqboard2000(struct comedi_device * dev, |
48a4d521 AB |
559 | unsigned char *cpld_array, int len) |
560 | { | |
561 | int result = -EIO; | |
562 | /* Read the serial EEPROM control register */ | |
563 | int secr; | |
564 | int retry; | |
565 | int i; | |
566 | ||
567 | /* Check to make sure the serial eeprom is present on the board */ | |
568 | secr = readl(devpriv->plx + 0x6c); | |
569 | if (!(secr & DAQBOARD2000_EEPROM_PRESENT)) { | |
570 | #ifdef DEBUG_EEPROM | |
571 | printk("no serial eeprom\n"); | |
572 | #endif | |
573 | return -EIO; | |
574 | } | |
575 | ||
576 | for (retry = 0; retry < 3; retry++) { | |
577 | #ifdef DEBUG_EEPROM | |
578 | printk("Programming EEPROM try %x\n", retry); | |
579 | #endif | |
580 | ||
581 | daqboard2000_resetLocalBus(dev); | |
582 | daqboard2000_reloadPLX(dev); | |
583 | daqboard2000_pulseProgPin(dev); | |
584 | if (daqboard2000_pollCPLD(dev, DAQBOARD2000_CPLD_INIT)) { | |
585 | for (i = 0; i < len; i++) { | |
586 | if (cpld_array[i] == 0xff | |
587 | && cpld_array[i + 1] == 0x20) { | |
588 | #ifdef DEBUG_EEPROM | |
589 | printk("Preamble found at %d\n", i); | |
590 | #endif | |
591 | break; | |
592 | } | |
593 | } | |
594 | for (; i < len; i += 2) { | |
595 | int data = | |
596 | (cpld_array[i] << 8) + cpld_array[i + | |
597 | 1]; | |
598 | if (!daqboard2000_writeCPLD(dev, data)) { | |
599 | break; | |
600 | } | |
601 | } | |
602 | if (i >= len) { | |
603 | #ifdef DEBUG_EEPROM | |
604 | printk("Programmed\n"); | |
605 | #endif | |
606 | daqboard2000_resetLocalBus(dev); | |
607 | daqboard2000_reloadPLX(dev); | |
608 | result = 0; | |
609 | break; | |
610 | } | |
611 | } | |
612 | } | |
613 | return result; | |
614 | } | |
615 | ||
71b5f4f1 | 616 | static void daqboard2000_adcStopDmaTransfer(struct comedi_device * dev) |
48a4d521 AB |
617 | { |
618 | /* printk("Implement: daqboard2000_adcStopDmaTransfer\n");*/ | |
619 | } | |
620 | ||
71b5f4f1 | 621 | static void daqboard2000_adcDisarm(struct comedi_device * dev) |
48a4d521 AB |
622 | { |
623 | daqboard2000_hw *fpga = devpriv->daq; | |
624 | ||
625 | /* Disable hardware triggers */ | |
626 | comedi_udelay(2); | |
627 | fpga->trigControl = DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable; | |
628 | comedi_udelay(2); | |
629 | fpga->trigControl = DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable; | |
630 | ||
631 | /* Stop the scan list FIFO from loading the configuration pipe */ | |
632 | comedi_udelay(2); | |
633 | fpga->acqControl = DAQBOARD2000_SeqStopScanList; | |
634 | ||
635 | /* Stop the pacer clock */ | |
636 | comedi_udelay(2); | |
637 | fpga->acqControl = DAQBOARD2000_AdcPacerDisable; | |
638 | ||
639 | /* Stop the input dma (abort channel 1) */ | |
640 | daqboard2000_adcStopDmaTransfer(dev); | |
641 | } | |
642 | ||
71b5f4f1 | 643 | static void daqboard2000_activateReferenceDacs(struct comedi_device * dev) |
48a4d521 AB |
644 | { |
645 | daqboard2000_hw *fpga = devpriv->daq; | |
646 | int timeout; | |
647 | ||
648 | // Set the + reference dac value in the FPGA | |
649 | fpga->refDacs = 0x80 | DAQBOARD2000_PosRefDacSelect; | |
650 | for (timeout = 0; timeout < 20; timeout++) { | |
651 | if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) { | |
652 | break; | |
653 | } | |
654 | comedi_udelay(2); | |
655 | } | |
656 | /* printk("DAQBOARD2000_PosRefDacSelect %d\n", timeout);*/ | |
657 | ||
658 | // Set the - reference dac value in the FPGA | |
659 | fpga->refDacs = 0x80 | DAQBOARD2000_NegRefDacSelect; | |
660 | for (timeout = 0; timeout < 20; timeout++) { | |
661 | if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) { | |
662 | break; | |
663 | } | |
664 | comedi_udelay(2); | |
665 | } | |
666 | /* printk("DAQBOARD2000_NegRefDacSelect %d\n", timeout);*/ | |
667 | } | |
668 | ||
71b5f4f1 | 669 | static void daqboard2000_initializeCtrs(struct comedi_device * dev) |
48a4d521 AB |
670 | { |
671 | /* printk("Implement: daqboard2000_initializeCtrs\n");*/ | |
672 | } | |
673 | ||
71b5f4f1 | 674 | static void daqboard2000_initializeTmrs(struct comedi_device * dev) |
48a4d521 AB |
675 | { |
676 | /* printk("Implement: daqboard2000_initializeTmrs\n");*/ | |
677 | } | |
678 | ||
71b5f4f1 | 679 | static void daqboard2000_dacDisarm(struct comedi_device * dev) |
48a4d521 AB |
680 | { |
681 | /* printk("Implement: daqboard2000_dacDisarm\n");*/ | |
682 | } | |
683 | ||
71b5f4f1 | 684 | static void daqboard2000_initializeAdc(struct comedi_device * dev) |
48a4d521 AB |
685 | { |
686 | daqboard2000_adcDisarm(dev); | |
687 | daqboard2000_activateReferenceDacs(dev); | |
688 | daqboard2000_initializeCtrs(dev); | |
689 | daqboard2000_initializeTmrs(dev); | |
690 | } | |
691 | ||
71b5f4f1 | 692 | static void daqboard2000_initializeDac(struct comedi_device * dev) |
48a4d521 AB |
693 | { |
694 | daqboard2000_dacDisarm(dev); | |
695 | } | |
696 | ||
697 | /* | |
698 | The test command, REMOVE!!: | |
699 | ||
700 | rmmod daqboard2000 ; rmmod comedi; make install ; modprobe daqboard2000; /usr/sbin/comedi_config /dev/comedi0 daqboard/2000 ; tail -40 /var/log/messages | |
701 | */ | |
702 | ||
703 | static int daqboard2000_8255_cb(int dir, int port, int data, | |
704 | unsigned long ioaddr) | |
705 | { | |
706 | int result = 0; | |
707 | if (dir) { | |
708 | writew(data, ((void *)ioaddr) + port * 2); | |
709 | result = 0; | |
710 | } else { | |
711 | result = readw(((void *)ioaddr) + port * 2); | |
712 | } | |
713 | /* | |
714 | printk("daqboard2000_8255_cb %x %d %d %2.2x -> %2.2x\n", | |
715 | arg, dir, port, data, result); | |
716 | */ | |
717 | return result; | |
718 | } | |
719 | ||
0707bb04 | 720 | static int daqboard2000_attach(struct comedi_device * dev, struct comedi_devconfig * it) |
48a4d521 AB |
721 | { |
722 | int result = 0; | |
34c43922 | 723 | struct comedi_subdevice *s; |
48a4d521 AB |
724 | struct pci_dev *card = NULL; |
725 | void *aux_data; | |
726 | unsigned int aux_len; | |
727 | int bus, slot; | |
728 | ||
729 | printk("comedi%d: daqboard2000:", dev->minor); | |
730 | ||
731 | bus = it->options[0]; | |
732 | slot = it->options[1]; | |
733 | ||
734 | result = alloc_private(dev, sizeof(daqboard2000_private)); | |
735 | if (result < 0) { | |
736 | return -ENOMEM; | |
737 | } | |
738 | for (card = pci_get_device(0x1616, 0x0409, NULL); | |
739 | card != NULL; | |
740 | card = pci_get_device(0x1616, 0x0409, card)) { | |
741 | if (bus || slot) { | |
742 | /* requested particular bus/slot */ | |
743 | if (card->bus->number != bus || | |
744 | PCI_SLOT(card->devfn) != slot) { | |
745 | continue; | |
746 | } | |
747 | } | |
748 | break; /* found one */ | |
749 | } | |
750 | if (!card) { | |
751 | if (bus || slot) | |
752 | printk(" no daqboard2000 found at bus/slot: %d/%d\n", | |
753 | bus, slot); | |
754 | else | |
755 | printk(" no daqboard2000 found\n"); | |
756 | return -EIO; | |
757 | } else { | |
758 | u32 id; | |
759 | int i; | |
760 | devpriv->pci_dev = card; | |
761 | id = ((u32) card->subsystem_device << 16) | card-> | |
762 | subsystem_vendor; | |
763 | for (i = 0; i < n_boardtypes; i++) { | |
764 | if (boardtypes[i].id == id) { | |
765 | printk(" %s", boardtypes[i].name); | |
766 | dev->board_ptr = boardtypes + i; | |
767 | } | |
768 | } | |
769 | if (!dev->board_ptr) { | |
770 | printk(" unknown subsystem id %08x (pretend it is an ids2)", id); | |
771 | dev->board_ptr = boardtypes; | |
772 | } | |
773 | } | |
774 | ||
775 | if ((result = comedi_pci_enable(card, "daqboard2000")) < 0) { | |
776 | printk(" failed to enable PCI device and request regions\n"); | |
777 | return -EIO; | |
778 | } | |
779 | devpriv->got_regions = 1; | |
780 | devpriv->plx = | |
781 | ioremap(pci_resource_start(card, 0), DAQBOARD2000_PLX_SIZE); | |
782 | devpriv->daq = | |
783 | ioremap(pci_resource_start(card, 2), DAQBOARD2000_DAQ_SIZE); | |
784 | if (!devpriv->plx || !devpriv->daq) { | |
785 | return -ENOMEM; | |
786 | } | |
787 | ||
788 | result = alloc_subdevices(dev, 3); | |
789 | if (result < 0) | |
790 | goto out; | |
791 | ||
792 | readl(devpriv->plx + 0x6c); | |
793 | ||
794 | /* | |
795 | u8 interrupt; | |
796 | Windows code does restore interrupts, but since we don't use them... | |
797 | pci_read_config_byte(card, PCI_INTERRUPT_LINE, &interrupt); | |
798 | printk("Interrupt before is: %x\n", interrupt); | |
799 | */ | |
800 | ||
801 | aux_data = comedi_aux_data(it->options, 0); | |
802 | aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]; | |
803 | ||
804 | if (aux_data && aux_len) { | |
805 | result = initialize_daqboard2000(dev, aux_data, aux_len); | |
806 | } else { | |
807 | printk("no FPGA initialization code, aborting\n"); | |
808 | result = -EIO; | |
809 | } | |
810 | if (result < 0) | |
811 | goto out; | |
812 | daqboard2000_initializeAdc(dev); | |
813 | daqboard2000_initializeDac(dev); | |
814 | /* | |
815 | Windows code does restore interrupts, but since we don't use them... | |
816 | pci_read_config_byte(card, PCI_INTERRUPT_LINE, &interrupt); | |
817 | printk("Interrupt after is: %x\n", interrupt); | |
818 | */ | |
819 | ||
820 | dev->iobase = (unsigned long)devpriv->daq; | |
821 | ||
822 | dev->board_name = this_board->name; | |
823 | ||
824 | s = dev->subdevices + 0; | |
825 | /* ai subdevice */ | |
826 | s->type = COMEDI_SUBD_AI; | |
827 | s->subdev_flags = SDF_READABLE | SDF_GROUND; | |
828 | s->n_chan = 24; | |
829 | s->maxdata = 0xffff; | |
830 | s->insn_read = daqboard2000_ai_insn_read; | |
831 | s->range_table = &range_daqboard2000_ai; | |
832 | ||
833 | s = dev->subdevices + 1; | |
834 | /* ao subdevice */ | |
835 | s->type = COMEDI_SUBD_AO; | |
836 | s->subdev_flags = SDF_WRITABLE; | |
837 | s->n_chan = 2; | |
838 | s->maxdata = 0xffff; | |
839 | s->insn_read = daqboard2000_ao_insn_read; | |
840 | s->insn_write = daqboard2000_ao_insn_write; | |
841 | s->range_table = &range_daqboard2000_ao; | |
842 | ||
843 | s = dev->subdevices + 2; | |
844 | result = subdev_8255_init(dev, s, daqboard2000_8255_cb, | |
845 | (unsigned long)(dev->iobase + 0x40)); | |
846 | ||
847 | printk("\n"); | |
848 | out: | |
849 | return result; | |
850 | } | |
851 | ||
71b5f4f1 | 852 | static int daqboard2000_detach(struct comedi_device * dev) |
48a4d521 AB |
853 | { |
854 | printk("comedi%d: daqboard2000: remove\n", dev->minor); | |
855 | ||
856 | if (dev->subdevices) | |
857 | subdev_8255_cleanup(dev, dev->subdevices + 2); | |
858 | ||
859 | if (dev->irq) { | |
860 | free_irq(dev->irq, dev); | |
861 | } | |
862 | if (devpriv) { | |
863 | if (devpriv->daq) | |
864 | iounmap(devpriv->daq); | |
865 | if (devpriv->plx) | |
866 | iounmap(devpriv->plx); | |
867 | if (devpriv->pci_dev) { | |
868 | if (devpriv->got_regions) { | |
869 | comedi_pci_disable(devpriv->pci_dev); | |
870 | } | |
871 | pci_dev_put(devpriv->pci_dev); | |
872 | } | |
873 | } | |
874 | return 0; | |
875 | } | |
876 | ||
877 | COMEDI_PCI_INITCLEANUP(driver_daqboard2000, daqboard2000_pci_table); |