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Commit | Line | Data |
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9a21297d DS |
1 | /* |
2 | comedi/drivers/dt3000.c | |
3 | Data Translation DT3000 series driver | |
4 | ||
5 | COMEDI - Linux Control and Measurement Device Interface | |
6 | Copyright (C) 1999 David A. Schleef <ds@schleef.org> | |
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: dt3000 | |
25 | Description: Data Translation DT3000 series | |
26 | Author: ds | |
27 | Devices: [Data Translation] DT3001 (dt3000), DT3001-PGL, DT3002, DT3003, | |
28 | DT3003-PGL, DT3004, DT3005, DT3004-200 | |
29 | Updated: Mon, 14 Apr 2008 15:41:24 +0100 | |
30 | Status: works | |
31 | ||
32 | Configuration Options: | |
33 | [0] - PCI bus of device (optional) | |
34 | [1] - PCI slot of device (optional) | |
35 | If bus/slot is not specified, the first supported | |
36 | PCI device found will be used. | |
37 | ||
38 | There is code to support AI commands, but it may not work. | |
39 | ||
40 | AO commands are not supported. | |
41 | */ | |
42 | ||
43 | /* | |
44 | The DT3000 series is Data Translation's attempt to make a PCI | |
45 | data acquisition board. The design of this series is very nice, | |
46 | since each board has an on-board DSP (Texas Instruments TMS320C52). | |
47 | However, a few details are a little annoying. The boards lack | |
48 | bus-mastering DMA, which eliminates them from serious work. | |
49 | They also are not capable of autocalibration, which is a common | |
50 | feature in modern hardware. The default firmware is pretty bad, | |
51 | making it nearly impossible to write an RT compatible driver. | |
52 | It would make an interesting project to write a decent firmware | |
53 | for these boards. | |
54 | ||
55 | Data Translation originally wanted an NDA for the documentation | |
56 | for the 3k series. However, if you ask nicely, they might send | |
57 | you the docs without one, also. | |
58 | */ | |
59 | ||
60 | #define DEBUG 1 | |
61 | ||
62 | #include "../comedidev.h" | |
63 | #include <linux/delay.h> | |
64 | ||
65 | #include "comedi_pci.h" | |
66 | ||
67 | #define PCI_VENDOR_ID_DT 0x1116 | |
68 | ||
69 | static const comedi_lrange range_dt3000_ai = { 4, { | |
70 | RANGE(-10, 10), | |
71 | RANGE(-5, 5), | |
72 | RANGE(-2.5, 2.5), | |
73 | RANGE(-1.25, 1.25) | |
74 | } | |
75 | }; | |
76 | static const comedi_lrange range_dt3000_ai_pgl = { 4, { | |
77 | RANGE(-10, 10), | |
78 | RANGE(-1, 1), | |
79 | RANGE(-0.1, 0.1), | |
80 | RANGE(-0.02, 0.02) | |
81 | } | |
82 | }; | |
83 | ||
84 | typedef struct { | |
85 | const char *name; | |
86 | unsigned int device_id; | |
87 | int adchan; | |
88 | int adbits; | |
89 | int ai_speed; | |
90 | const comedi_lrange *adrange; | |
91 | int dachan; | |
92 | int dabits; | |
93 | } dt3k_boardtype; | |
94 | ||
95 | static const dt3k_boardtype dt3k_boardtypes[] = { | |
96 | {name:"dt3001", | |
97 | device_id:0x22, | |
98 | adchan: 16, | |
99 | adbits: 12, | |
100 | adrange: &range_dt3000_ai, | |
101 | ai_speed:3000, | |
102 | dachan: 2, | |
103 | dabits: 12, | |
104 | }, | |
105 | {name:"dt3001-pgl", | |
106 | device_id:0x27, | |
107 | adchan: 16, | |
108 | adbits: 12, | |
109 | adrange: &range_dt3000_ai_pgl, | |
110 | ai_speed:3000, | |
111 | dachan: 2, | |
112 | dabits: 12, | |
113 | }, | |
114 | {name:"dt3002", | |
115 | device_id:0x23, | |
116 | adchan: 32, | |
117 | adbits: 12, | |
118 | adrange: &range_dt3000_ai, | |
119 | ai_speed:3000, | |
120 | dachan: 0, | |
121 | dabits: 0, | |
122 | }, | |
123 | {name:"dt3003", | |
124 | device_id:0x24, | |
125 | adchan: 64, | |
126 | adbits: 12, | |
127 | adrange: &range_dt3000_ai, | |
128 | ai_speed:3000, | |
129 | dachan: 2, | |
130 | dabits: 12, | |
131 | }, | |
132 | {name:"dt3003-pgl", | |
133 | device_id:0x28, | |
134 | adchan: 64, | |
135 | adbits: 12, | |
136 | adrange: &range_dt3000_ai_pgl, | |
137 | ai_speed:3000, | |
138 | dachan: 2, | |
139 | dabits: 12, | |
140 | }, | |
141 | {name:"dt3004", | |
142 | device_id:0x25, | |
143 | adchan: 16, | |
144 | adbits: 16, | |
145 | adrange: &range_dt3000_ai, | |
146 | ai_speed:10000, | |
147 | dachan: 2, | |
148 | dabits: 12, | |
149 | }, | |
150 | {name:"dt3005", /* a.k.a. 3004-200 */ | |
151 | device_id:0x26, | |
152 | adchan: 16, | |
153 | adbits: 16, | |
154 | adrange: &range_dt3000_ai, | |
155 | ai_speed:5000, | |
156 | dachan: 2, | |
157 | dabits: 12, | |
158 | }, | |
159 | }; | |
160 | ||
161 | #define n_dt3k_boards sizeof(dt3k_boardtypes)/sizeof(dt3k_boardtype) | |
162 | #define this_board ((const dt3k_boardtype *)dev->board_ptr) | |
163 | ||
164 | static DEFINE_PCI_DEVICE_TABLE(dt3k_pci_table) = { | |
165 | {PCI_VENDOR_ID_DT, 0x0022, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
166 | {PCI_VENDOR_ID_DT, 0x0027, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
167 | {PCI_VENDOR_ID_DT, 0x0023, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
168 | {PCI_VENDOR_ID_DT, 0x0024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
169 | {PCI_VENDOR_ID_DT, 0x0028, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
170 | {PCI_VENDOR_ID_DT, 0x0025, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
171 | {PCI_VENDOR_ID_DT, 0x0026, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
172 | {0} | |
173 | }; | |
174 | ||
175 | MODULE_DEVICE_TABLE(pci, dt3k_pci_table); | |
176 | ||
177 | #define DT3000_SIZE (4*0x1000) | |
178 | ||
179 | /* dual-ported RAM location definitions */ | |
180 | ||
181 | #define DPR_DAC_buffer (4*0x000) | |
182 | #define DPR_ADC_buffer (4*0x800) | |
183 | #define DPR_Command (4*0xfd3) | |
184 | #define DPR_SubSys (4*0xfd3) | |
185 | #define DPR_Encode (4*0xfd4) | |
186 | #define DPR_Params(a) (4*(0xfd5+(a))) | |
187 | #define DPR_Tick_Reg_Lo (4*0xff5) | |
188 | #define DPR_Tick_Reg_Hi (4*0xff6) | |
189 | #define DPR_DA_Buf_Front (4*0xff7) | |
190 | #define DPR_DA_Buf_Rear (4*0xff8) | |
191 | #define DPR_AD_Buf_Front (4*0xff9) | |
192 | #define DPR_AD_Buf_Rear (4*0xffa) | |
193 | #define DPR_Int_Mask (4*0xffb) | |
194 | #define DPR_Intr_Flag (4*0xffc) | |
195 | #define DPR_Response_Mbx (4*0xffe) | |
196 | #define DPR_Command_Mbx (4*0xfff) | |
197 | ||
198 | #define AI_FIFO_DEPTH 2003 | |
199 | #define AO_FIFO_DEPTH 2048 | |
200 | ||
201 | /* command list */ | |
202 | ||
203 | #define CMD_GETBRDINFO 0 | |
204 | #define CMD_CONFIG 1 | |
205 | #define CMD_GETCONFIG 2 | |
206 | #define CMD_START 3 | |
207 | #define CMD_STOP 4 | |
208 | #define CMD_READSINGLE 5 | |
209 | #define CMD_WRITESINGLE 6 | |
210 | #define CMD_CALCCLOCK 7 | |
211 | #define CMD_READEVENTS 8 | |
212 | #define CMD_WRITECTCTRL 16 | |
213 | #define CMD_READCTCTRL 17 | |
214 | #define CMD_WRITECT 18 | |
215 | #define CMD_READCT 19 | |
216 | #define CMD_WRITEDATA 32 | |
217 | #define CMD_READDATA 33 | |
218 | #define CMD_WRITEIO 34 | |
219 | #define CMD_READIO 35 | |
220 | #define CMD_WRITECODE 36 | |
221 | #define CMD_READCODE 37 | |
222 | #define CMD_EXECUTE 38 | |
223 | #define CMD_HALT 48 | |
224 | ||
225 | #define SUBS_AI 0 | |
226 | #define SUBS_AO 1 | |
227 | #define SUBS_DIN 2 | |
228 | #define SUBS_DOUT 3 | |
229 | #define SUBS_MEM 4 | |
230 | #define SUBS_CT 5 | |
231 | ||
232 | /* interrupt flags */ | |
233 | #define DT3000_CMDONE 0x80 | |
234 | #define DT3000_CTDONE 0x40 | |
235 | #define DT3000_DAHWERR 0x20 | |
236 | #define DT3000_DASWERR 0x10 | |
237 | #define DT3000_DAEMPTY 0x08 | |
238 | #define DT3000_ADHWERR 0x04 | |
239 | #define DT3000_ADSWERR 0x02 | |
240 | #define DT3000_ADFULL 0x01 | |
241 | ||
242 | #define DT3000_COMPLETION_MASK 0xff00 | |
243 | #define DT3000_COMMAND_MASK 0x00ff | |
244 | #define DT3000_NOTPROCESSED 0x0000 | |
245 | #define DT3000_NOERROR 0x5500 | |
246 | #define DT3000_ERROR 0xaa00 | |
247 | #define DT3000_NOTSUPPORTED 0xff00 | |
248 | ||
249 | #define DT3000_EXTERNAL_CLOCK 1 | |
250 | #define DT3000_RISING_EDGE 2 | |
251 | ||
252 | #define TMODE_MASK 0x1c | |
253 | ||
254 | #define DT3000_AD_TRIG_INTERNAL (0<<2) | |
255 | #define DT3000_AD_TRIG_EXTERNAL (1<<2) | |
256 | #define DT3000_AD_RETRIG_INTERNAL (2<<2) | |
257 | #define DT3000_AD_RETRIG_EXTERNAL (3<<2) | |
258 | #define DT3000_AD_EXTRETRIG (4<<2) | |
259 | ||
260 | #define DT3000_CHANNEL_MODE_SE 0 | |
261 | #define DT3000_CHANNEL_MODE_DI 1 | |
262 | ||
263 | typedef struct { | |
264 | struct pci_dev *pci_dev; | |
265 | resource_size_t phys_addr; | |
266 | void *io_addr; | |
267 | unsigned int lock; | |
790c5541 | 268 | unsigned int ao_readback[2]; |
9a21297d DS |
269 | unsigned int ai_front; |
270 | unsigned int ai_rear; | |
271 | } dt3k_private; | |
272 | #define devpriv ((dt3k_private *)dev->private) | |
273 | ||
71b5f4f1 BP |
274 | static int dt3000_attach(struct comedi_device * dev, comedi_devconfig * it); |
275 | static int dt3000_detach(struct comedi_device * dev); | |
9a21297d DS |
276 | static comedi_driver driver_dt3000 = { |
277 | driver_name:"dt3000", | |
278 | module:THIS_MODULE, | |
279 | attach:dt3000_attach, | |
280 | detach:dt3000_detach, | |
281 | }; | |
282 | ||
283 | COMEDI_PCI_INITCLEANUP(driver_dt3000, dt3k_pci_table); | |
284 | ||
71b5f4f1 | 285 | static void dt3k_ai_empty_fifo(struct comedi_device * dev, comedi_subdevice * s); |
9a21297d DS |
286 | static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *arg, |
287 | unsigned int round_mode); | |
71b5f4f1 | 288 | static int dt3k_ai_cancel(struct comedi_device * dev, comedi_subdevice * s); |
9a21297d DS |
289 | #ifdef DEBUG |
290 | static void debug_intr_flags(unsigned int flags); | |
291 | #endif | |
292 | ||
293 | #define TIMEOUT 100 | |
294 | ||
71b5f4f1 | 295 | static int dt3k_send_cmd(struct comedi_device * dev, unsigned int cmd) |
9a21297d DS |
296 | { |
297 | int i; | |
298 | unsigned int status = 0; | |
299 | ||
300 | writew(cmd, devpriv->io_addr + DPR_Command_Mbx); | |
301 | ||
302 | for (i = 0; i < TIMEOUT; i++) { | |
303 | status = readw(devpriv->io_addr + DPR_Command_Mbx); | |
304 | if ((status & DT3000_COMPLETION_MASK) != DT3000_NOTPROCESSED) | |
305 | break; | |
306 | comedi_udelay(1); | |
307 | } | |
308 | if ((status & DT3000_COMPLETION_MASK) == DT3000_NOERROR) { | |
309 | return 0; | |
310 | } | |
311 | ||
312 | printk("dt3k_send_cmd() timeout/error status=0x%04x\n", status); | |
313 | ||
314 | return -ETIME; | |
315 | } | |
316 | ||
71b5f4f1 | 317 | static unsigned int dt3k_readsingle(struct comedi_device * dev, unsigned int subsys, |
9a21297d DS |
318 | unsigned int chan, unsigned int gain) |
319 | { | |
320 | writew(subsys, devpriv->io_addr + DPR_SubSys); | |
321 | ||
322 | writew(chan, devpriv->io_addr + DPR_Params(0)); | |
323 | writew(gain, devpriv->io_addr + DPR_Params(1)); | |
324 | ||
325 | dt3k_send_cmd(dev, CMD_READSINGLE); | |
326 | ||
327 | return readw(devpriv->io_addr + DPR_Params(2)); | |
328 | } | |
329 | ||
71b5f4f1 | 330 | static void dt3k_writesingle(struct comedi_device * dev, unsigned int subsys, |
9a21297d DS |
331 | unsigned int chan, unsigned int data) |
332 | { | |
333 | writew(subsys, devpriv->io_addr + DPR_SubSys); | |
334 | ||
335 | writew(chan, devpriv->io_addr + DPR_Params(0)); | |
336 | writew(0, devpriv->io_addr + DPR_Params(1)); | |
337 | writew(data, devpriv->io_addr + DPR_Params(2)); | |
338 | ||
339 | dt3k_send_cmd(dev, CMD_WRITESINGLE); | |
340 | } | |
341 | ||
342 | static int debug_n_ints = 0; | |
343 | ||
344 | // FIXME! Assumes shared interrupt is for this card. | |
345 | // What's this debug_n_ints stuff? Obviously needs some work... | |
346 | static irqreturn_t dt3k_interrupt(int irq, void *d PT_REGS_ARG) | |
347 | { | |
71b5f4f1 | 348 | struct comedi_device *dev = d; |
9a21297d DS |
349 | comedi_subdevice *s; |
350 | unsigned int status; | |
351 | ||
352 | if (!dev->attached) { | |
353 | return IRQ_NONE; | |
354 | } | |
355 | ||
356 | s = dev->subdevices + 0; | |
357 | status = readw(devpriv->io_addr + DPR_Intr_Flag); | |
358 | #ifdef DEBUG | |
359 | debug_intr_flags(status); | |
360 | #endif | |
361 | ||
362 | if (status & DT3000_ADFULL) { | |
363 | dt3k_ai_empty_fifo(dev, s); | |
364 | s->async->events |= COMEDI_CB_BLOCK; | |
365 | } | |
366 | ||
367 | if (status & (DT3000_ADSWERR | DT3000_ADHWERR)) { | |
368 | s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA; | |
369 | } | |
370 | ||
371 | debug_n_ints++; | |
372 | if (debug_n_ints >= 10) { | |
373 | dt3k_ai_cancel(dev, s); | |
374 | s->async->events |= COMEDI_CB_EOA; | |
375 | } | |
376 | ||
377 | comedi_event(dev, s); | |
378 | return IRQ_HANDLED; | |
379 | } | |
380 | ||
381 | #ifdef DEBUG | |
382 | static char *intr_flags[] = { | |
383 | "AdFull", "AdSwError", "AdHwError", "DaEmpty", | |
384 | "DaSwError", "DaHwError", "CtDone", "CmDone", | |
385 | }; | |
386 | static void debug_intr_flags(unsigned int flags) | |
387 | { | |
388 | int i; | |
389 | printk("dt3k: intr_flags:"); | |
390 | for (i = 0; i < 8; i++) { | |
391 | if (flags & (1 << i)) { | |
392 | printk(" %s", intr_flags[i]); | |
393 | } | |
394 | } | |
395 | printk("\n"); | |
396 | } | |
397 | #endif | |
398 | ||
71b5f4f1 | 399 | static void dt3k_ai_empty_fifo(struct comedi_device * dev, comedi_subdevice * s) |
9a21297d DS |
400 | { |
401 | int front; | |
402 | int rear; | |
403 | int count; | |
404 | int i; | |
790c5541 | 405 | short data; |
9a21297d DS |
406 | |
407 | front = readw(devpriv->io_addr + DPR_AD_Buf_Front); | |
408 | count = front - devpriv->ai_front; | |
409 | if (count < 0) | |
410 | count += AI_FIFO_DEPTH; | |
411 | ||
412 | printk("reading %d samples\n", count); | |
413 | ||
414 | rear = devpriv->ai_rear; | |
415 | ||
416 | for (i = 0; i < count; i++) { | |
417 | data = readw(devpriv->io_addr + DPR_ADC_buffer + rear); | |
418 | comedi_buf_put(s->async, data); | |
419 | rear++; | |
420 | if (rear >= AI_FIFO_DEPTH) | |
421 | rear = 0; | |
422 | } | |
423 | ||
424 | devpriv->ai_rear = rear; | |
425 | writew(rear, devpriv->io_addr + DPR_AD_Buf_Rear); | |
426 | } | |
427 | ||
71b5f4f1 | 428 | static int dt3k_ai_cmdtest(struct comedi_device * dev, comedi_subdevice * s, |
9a21297d DS |
429 | comedi_cmd * cmd) |
430 | { | |
431 | int err = 0; | |
432 | int tmp; | |
433 | ||
434 | /* step 1: make sure trigger sources are trivially valid */ | |
435 | ||
436 | tmp = cmd->start_src; | |
437 | cmd->start_src &= TRIG_NOW; | |
438 | if (!cmd->start_src || tmp != cmd->start_src) | |
439 | err++; | |
440 | ||
441 | tmp = cmd->scan_begin_src; | |
442 | cmd->scan_begin_src &= TRIG_TIMER; | |
443 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
444 | err++; | |
445 | ||
446 | tmp = cmd->convert_src; | |
447 | cmd->convert_src &= TRIG_TIMER; | |
448 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
449 | err++; | |
450 | ||
451 | tmp = cmd->scan_end_src; | |
452 | cmd->scan_end_src &= TRIG_COUNT; | |
453 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
454 | err++; | |
455 | ||
456 | tmp = cmd->stop_src; | |
457 | cmd->stop_src &= TRIG_COUNT; | |
458 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
459 | err++; | |
460 | ||
461 | if (err) | |
462 | return 1; | |
463 | ||
464 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
465 | ||
466 | if (err) | |
467 | return 2; | |
468 | ||
469 | /* step 3: make sure arguments are trivially compatible */ | |
470 | ||
471 | if (cmd->start_arg != 0) { | |
472 | cmd->start_arg = 0; | |
473 | err++; | |
474 | } | |
475 | ||
476 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
477 | if (cmd->scan_begin_arg < this_board->ai_speed) { | |
478 | cmd->scan_begin_arg = this_board->ai_speed; | |
479 | err++; | |
480 | } | |
481 | if (cmd->scan_begin_arg > 100 * 16 * 65535) { | |
482 | cmd->scan_begin_arg = 100 * 16 * 65535; | |
483 | err++; | |
484 | } | |
485 | } else { | |
486 | /* not supported */ | |
487 | } | |
488 | if (cmd->convert_src == TRIG_TIMER) { | |
489 | if (cmd->convert_arg < this_board->ai_speed) { | |
490 | cmd->convert_arg = this_board->ai_speed; | |
491 | err++; | |
492 | } | |
493 | if (cmd->convert_arg > 50 * 16 * 65535) { | |
494 | cmd->convert_arg = 50 * 16 * 65535; | |
495 | err++; | |
496 | } | |
497 | } else { | |
498 | /* not supported */ | |
499 | } | |
500 | ||
501 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
502 | cmd->scan_end_arg = cmd->chanlist_len; | |
503 | err++; | |
504 | } | |
505 | if (cmd->stop_src == TRIG_COUNT) { | |
506 | if (cmd->stop_arg > 0x00ffffff) { | |
507 | cmd->stop_arg = 0x00ffffff; | |
508 | err++; | |
509 | } | |
510 | } else { | |
511 | /* TRIG_NONE */ | |
512 | if (cmd->stop_arg != 0) { | |
513 | cmd->stop_arg = 0; | |
514 | err++; | |
515 | } | |
516 | } | |
517 | ||
518 | if (err) | |
519 | return 3; | |
520 | ||
521 | /* step 4: fix up any arguments */ | |
522 | ||
523 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
524 | tmp = cmd->scan_begin_arg; | |
525 | dt3k_ns_to_timer(100, &cmd->scan_begin_arg, | |
526 | cmd->flags & TRIG_ROUND_MASK); | |
527 | if (tmp != cmd->scan_begin_arg) | |
528 | err++; | |
529 | } else { | |
530 | /* not supported */ | |
531 | } | |
532 | if (cmd->convert_src == TRIG_TIMER) { | |
533 | tmp = cmd->convert_arg; | |
534 | dt3k_ns_to_timer(50, &cmd->convert_arg, | |
535 | cmd->flags & TRIG_ROUND_MASK); | |
536 | if (tmp != cmd->convert_arg) | |
537 | err++; | |
538 | if (cmd->scan_begin_src == TRIG_TIMER && | |
539 | cmd->scan_begin_arg < | |
540 | cmd->convert_arg * cmd->scan_end_arg) { | |
541 | cmd->scan_begin_arg = | |
542 | cmd->convert_arg * cmd->scan_end_arg; | |
543 | err++; | |
544 | } | |
545 | } else { | |
546 | /* not supported */ | |
547 | } | |
548 | ||
549 | if (err) | |
550 | return 4; | |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
555 | static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec, | |
556 | unsigned int round_mode) | |
557 | { | |
558 | int divider, base, prescale; | |
559 | ||
560 | /* This function needs improvment */ | |
561 | /* Don't know if divider==0 works. */ | |
562 | ||
563 | for (prescale = 0; prescale < 16; prescale++) { | |
564 | base = timer_base * (prescale + 1); | |
565 | switch (round_mode) { | |
566 | case TRIG_ROUND_NEAREST: | |
567 | default: | |
568 | divider = (*nanosec + base / 2) / base; | |
569 | break; | |
570 | case TRIG_ROUND_DOWN: | |
571 | divider = (*nanosec) / base; | |
572 | break; | |
573 | case TRIG_ROUND_UP: | |
574 | divider = (*nanosec) / base; | |
575 | break; | |
576 | } | |
577 | if (divider < 65536) { | |
578 | *nanosec = divider * base; | |
579 | return (prescale << 16) | (divider); | |
580 | } | |
581 | } | |
582 | ||
583 | prescale = 15; | |
584 | base = timer_base * (1 << prescale); | |
585 | divider = 65535; | |
586 | *nanosec = divider * base; | |
587 | return (prescale << 16) | (divider); | |
588 | } | |
589 | ||
71b5f4f1 | 590 | static int dt3k_ai_cmd(struct comedi_device * dev, comedi_subdevice * s) |
9a21297d DS |
591 | { |
592 | comedi_cmd *cmd = &s->async->cmd; | |
593 | int i; | |
594 | unsigned int chan, range, aref; | |
595 | unsigned int divider; | |
596 | unsigned int tscandiv; | |
597 | int ret; | |
598 | unsigned int mode; | |
599 | ||
600 | printk("dt3k_ai_cmd:\n"); | |
601 | for (i = 0; i < cmd->chanlist_len; i++) { | |
602 | chan = CR_CHAN(cmd->chanlist[i]); | |
603 | range = CR_RANGE(cmd->chanlist[i]); | |
604 | ||
605 | writew((range << 6) | chan, | |
606 | devpriv->io_addr + DPR_ADC_buffer + i); | |
607 | } | |
608 | aref = CR_AREF(cmd->chanlist[0]); | |
609 | ||
610 | writew(cmd->scan_end_arg, devpriv->io_addr + DPR_Params(0)); | |
611 | printk("param[0]=0x%04x\n", cmd->scan_end_arg); | |
612 | ||
613 | if (cmd->convert_src == TRIG_TIMER) { | |
614 | divider = dt3k_ns_to_timer(50, &cmd->convert_arg, | |
615 | cmd->flags & TRIG_ROUND_MASK); | |
616 | writew((divider >> 16), devpriv->io_addr + DPR_Params(1)); | |
617 | printk("param[1]=0x%04x\n", divider >> 16); | |
618 | writew((divider & 0xffff), devpriv->io_addr + DPR_Params(2)); | |
619 | printk("param[2]=0x%04x\n", divider & 0xffff); | |
620 | } else { | |
621 | /* not supported */ | |
622 | } | |
623 | ||
624 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
625 | tscandiv = dt3k_ns_to_timer(100, &cmd->scan_begin_arg, | |
626 | cmd->flags & TRIG_ROUND_MASK); | |
627 | writew((tscandiv >> 16), devpriv->io_addr + DPR_Params(3)); | |
628 | printk("param[3]=0x%04x\n", tscandiv >> 16); | |
629 | writew((tscandiv & 0xffff), devpriv->io_addr + DPR_Params(4)); | |
630 | printk("param[4]=0x%04x\n", tscandiv & 0xffff); | |
631 | } else { | |
632 | /* not supported */ | |
633 | } | |
634 | ||
635 | mode = DT3000_AD_RETRIG_INTERNAL | 0 | 0; | |
636 | writew(mode, devpriv->io_addr + DPR_Params(5)); | |
637 | printk("param[5]=0x%04x\n", mode); | |
638 | writew(aref == AREF_DIFF, devpriv->io_addr + DPR_Params(6)); | |
639 | printk("param[6]=0x%04x\n", aref == AREF_DIFF); | |
640 | ||
641 | writew(AI_FIFO_DEPTH / 2, devpriv->io_addr + DPR_Params(7)); | |
642 | printk("param[7]=0x%04x\n", AI_FIFO_DEPTH / 2); | |
643 | ||
644 | writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); | |
645 | ret = dt3k_send_cmd(dev, CMD_CONFIG); | |
646 | ||
647 | writew(DT3000_ADFULL | DT3000_ADSWERR | DT3000_ADHWERR, | |
648 | devpriv->io_addr + DPR_Int_Mask); | |
649 | ||
650 | debug_n_ints = 0; | |
651 | ||
652 | writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); | |
653 | ret = dt3k_send_cmd(dev, CMD_START); | |
654 | ||
655 | return 0; | |
656 | } | |
657 | ||
71b5f4f1 | 658 | static int dt3k_ai_cancel(struct comedi_device * dev, comedi_subdevice * s) |
9a21297d DS |
659 | { |
660 | int ret; | |
661 | ||
662 | writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); | |
663 | ret = dt3k_send_cmd(dev, CMD_STOP); | |
664 | ||
665 | writew(0, devpriv->io_addr + DPR_Int_Mask); | |
666 | ||
667 | return 0; | |
668 | } | |
669 | ||
71b5f4f1 | 670 | static int dt3k_ai_insn(struct comedi_device * dev, comedi_subdevice * s, |
790c5541 | 671 | comedi_insn * insn, unsigned int * data) |
9a21297d DS |
672 | { |
673 | int i; | |
674 | unsigned int chan, gain, aref; | |
675 | ||
676 | chan = CR_CHAN(insn->chanspec); | |
677 | gain = CR_RANGE(insn->chanspec); | |
678 | /* XXX docs don't explain how to select aref */ | |
679 | aref = CR_AREF(insn->chanspec); | |
680 | ||
681 | for (i = 0; i < insn->n; i++) { | |
682 | data[i] = dt3k_readsingle(dev, SUBS_AI, chan, gain); | |
683 | } | |
684 | ||
685 | return i; | |
686 | } | |
687 | ||
71b5f4f1 | 688 | static int dt3k_ao_insn(struct comedi_device * dev, comedi_subdevice * s, |
790c5541 | 689 | comedi_insn * insn, unsigned int * data) |
9a21297d DS |
690 | { |
691 | int i; | |
692 | unsigned int chan; | |
693 | ||
694 | chan = CR_CHAN(insn->chanspec); | |
695 | for (i = 0; i < insn->n; i++) { | |
696 | dt3k_writesingle(dev, SUBS_AO, chan, data[i]); | |
697 | devpriv->ao_readback[chan] = data[i]; | |
698 | } | |
699 | ||
700 | return i; | |
701 | } | |
702 | ||
71b5f4f1 | 703 | static int dt3k_ao_insn_read(struct comedi_device * dev, comedi_subdevice * s, |
790c5541 | 704 | comedi_insn * insn, unsigned int * data) |
9a21297d DS |
705 | { |
706 | int i; | |
707 | unsigned int chan; | |
708 | ||
709 | chan = CR_CHAN(insn->chanspec); | |
710 | for (i = 0; i < insn->n; i++) { | |
711 | data[i] = devpriv->ao_readback[chan]; | |
712 | } | |
713 | ||
714 | return i; | |
715 | } | |
716 | ||
71b5f4f1 | 717 | static void dt3k_dio_config(struct comedi_device * dev, int bits) |
9a21297d DS |
718 | { |
719 | /* XXX */ | |
720 | writew(SUBS_DOUT, devpriv->io_addr + DPR_SubSys); | |
721 | ||
722 | writew(bits, devpriv->io_addr + DPR_Params(0)); | |
723 | #if 0 | |
724 | /* don't know */ | |
725 | writew(0, devpriv->io_addr + DPR_Params(1)); | |
726 | writew(0, devpriv->io_addr + DPR_Params(2)); | |
727 | #endif | |
728 | ||
729 | dt3k_send_cmd(dev, CMD_CONFIG); | |
730 | } | |
731 | ||
71b5f4f1 | 732 | static int dt3k_dio_insn_config(struct comedi_device * dev, comedi_subdevice * s, |
790c5541 | 733 | comedi_insn * insn, unsigned int * data) |
9a21297d DS |
734 | { |
735 | int mask; | |
736 | ||
737 | mask = (CR_CHAN(insn->chanspec) < 4) ? 0x0f : 0xf0; | |
738 | ||
739 | switch (data[0]) { | |
740 | case INSN_CONFIG_DIO_OUTPUT: | |
741 | s->io_bits |= mask; | |
742 | break; | |
743 | case INSN_CONFIG_DIO_INPUT: | |
744 | s->io_bits &= ~mask; | |
745 | break; | |
746 | case INSN_CONFIG_DIO_QUERY: | |
747 | data[1] = | |
748 | (s->io_bits & (1 << CR_CHAN(insn-> | |
749 | chanspec))) ? COMEDI_OUTPUT : | |
750 | COMEDI_INPUT; | |
751 | return insn->n; | |
752 | break; | |
753 | default: | |
754 | return -EINVAL; | |
755 | break; | |
756 | } | |
757 | mask = (s->io_bits & 0x01) | ((s->io_bits & 0x10) >> 3); | |
758 | dt3k_dio_config(dev, mask); | |
759 | ||
760 | return insn->n; | |
761 | } | |
762 | ||
71b5f4f1 | 763 | static int dt3k_dio_insn_bits(struct comedi_device * dev, comedi_subdevice * s, |
790c5541 | 764 | comedi_insn * insn, unsigned int * data) |
9a21297d DS |
765 | { |
766 | if (insn->n != 2) | |
767 | return -EINVAL; | |
768 | ||
769 | if (data[0]) { | |
770 | s->state &= ~data[0]; | |
771 | s->state |= data[1] & data[0]; | |
772 | dt3k_writesingle(dev, SUBS_DOUT, 0, s->state); | |
773 | } | |
774 | data[1] = dt3k_readsingle(dev, SUBS_DIN, 0, 0); | |
775 | ||
776 | return 2; | |
777 | } | |
778 | ||
71b5f4f1 | 779 | static int dt3k_mem_insn_read(struct comedi_device * dev, comedi_subdevice * s, |
790c5541 | 780 | comedi_insn * insn, unsigned int * data) |
9a21297d DS |
781 | { |
782 | unsigned int addr = CR_CHAN(insn->chanspec); | |
783 | int i; | |
784 | ||
785 | for (i = 0; i < insn->n; i++) { | |
786 | writew(SUBS_MEM, devpriv->io_addr + DPR_SubSys); | |
787 | writew(addr, devpriv->io_addr + DPR_Params(0)); | |
788 | writew(1, devpriv->io_addr + DPR_Params(1)); | |
789 | ||
790 | dt3k_send_cmd(dev, CMD_READCODE); | |
791 | ||
792 | data[i] = readw(devpriv->io_addr + DPR_Params(2)); | |
793 | } | |
794 | ||
795 | return i; | |
796 | } | |
797 | ||
71b5f4f1 | 798 | static int dt_pci_probe(struct comedi_device * dev, int bus, int slot); |
9a21297d | 799 | |
71b5f4f1 | 800 | static int dt3000_attach(struct comedi_device * dev, comedi_devconfig * it) |
9a21297d DS |
801 | { |
802 | comedi_subdevice *s; | |
803 | int bus, slot; | |
804 | int ret = 0; | |
805 | ||
806 | printk("dt3000:"); | |
807 | bus = it->options[0]; | |
808 | slot = it->options[1]; | |
809 | ||
810 | if ((ret = alloc_private(dev, sizeof(dt3k_private))) < 0) | |
811 | return ret; | |
812 | ||
813 | ret = dt_pci_probe(dev, bus, slot); | |
814 | if (ret < 0) | |
815 | return ret; | |
816 | if (ret == 0) { | |
817 | printk(" no DT board found\n"); | |
818 | return -ENODEV; | |
819 | } | |
820 | ||
821 | dev->board_name = this_board->name; | |
822 | ||
823 | if (comedi_request_irq(devpriv->pci_dev->irq, dt3k_interrupt, | |
824 | IRQF_SHARED, "dt3000", dev)) { | |
825 | printk(" unable to allocate IRQ %u\n", devpriv->pci_dev->irq); | |
826 | return -EINVAL; | |
827 | } | |
828 | dev->irq = devpriv->pci_dev->irq; | |
829 | ||
830 | if ((ret = alloc_subdevices(dev, 4)) < 0) | |
831 | return ret; | |
832 | ||
833 | s = dev->subdevices; | |
834 | dev->read_subdev = s; | |
835 | ||
836 | /* ai subdevice */ | |
837 | s->type = COMEDI_SUBD_AI; | |
838 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; | |
839 | s->n_chan = this_board->adchan; | |
840 | s->insn_read = dt3k_ai_insn; | |
841 | s->maxdata = (1 << this_board->adbits) - 1; | |
842 | s->len_chanlist = 512; | |
843 | s->range_table = &range_dt3000_ai; /* XXX */ | |
844 | s->do_cmd = dt3k_ai_cmd; | |
845 | s->do_cmdtest = dt3k_ai_cmdtest; | |
846 | s->cancel = dt3k_ai_cancel; | |
847 | ||
848 | s++; | |
849 | /* ao subsystem */ | |
850 | s->type = COMEDI_SUBD_AO; | |
851 | s->subdev_flags = SDF_WRITABLE; | |
852 | s->n_chan = 2; | |
853 | s->insn_read = dt3k_ao_insn_read; | |
854 | s->insn_write = dt3k_ao_insn; | |
855 | s->maxdata = (1 << this_board->dabits) - 1; | |
856 | s->len_chanlist = 1; | |
857 | s->range_table = &range_bipolar10; | |
858 | ||
859 | s++; | |
860 | /* dio subsystem */ | |
861 | s->type = COMEDI_SUBD_DIO; | |
862 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
863 | s->n_chan = 8; | |
864 | s->insn_config = dt3k_dio_insn_config; | |
865 | s->insn_bits = dt3k_dio_insn_bits; | |
866 | s->maxdata = 1; | |
867 | s->len_chanlist = 8; | |
868 | s->range_table = &range_digital; | |
869 | ||
870 | s++; | |
871 | /* mem subsystem */ | |
872 | s->type = COMEDI_SUBD_MEMORY; | |
873 | s->subdev_flags = SDF_READABLE; | |
874 | s->n_chan = 0x1000; | |
875 | s->insn_read = dt3k_mem_insn_read; | |
876 | s->maxdata = 0xff; | |
877 | s->len_chanlist = 1; | |
878 | s->range_table = &range_unknown; | |
879 | ||
880 | #if 0 | |
881 | s++; | |
882 | /* proc subsystem */ | |
883 | s->type = COMEDI_SUBD_PROC; | |
884 | #endif | |
885 | ||
886 | return 0; | |
887 | } | |
888 | ||
71b5f4f1 | 889 | static int dt3000_detach(struct comedi_device * dev) |
9a21297d DS |
890 | { |
891 | if (dev->irq) | |
892 | comedi_free_irq(dev->irq, dev); | |
893 | ||
894 | if (devpriv) { | |
895 | if (devpriv->pci_dev) { | |
896 | if (devpriv->phys_addr) { | |
897 | comedi_pci_disable(devpriv->pci_dev); | |
898 | } | |
899 | pci_dev_put(devpriv->pci_dev); | |
900 | } | |
901 | if (devpriv->io_addr) | |
902 | iounmap(devpriv->io_addr); | |
903 | } | |
904 | /* XXX */ | |
905 | ||
906 | return 0; | |
907 | } | |
908 | ||
909 | static struct pci_dev *dt_pci_find_device(struct pci_dev *from, int *board); | |
71b5f4f1 | 910 | static int setup_pci(struct comedi_device * dev); |
9a21297d | 911 | |
71b5f4f1 | 912 | static int dt_pci_probe(struct comedi_device * dev, int bus, int slot) |
9a21297d DS |
913 | { |
914 | int board; | |
915 | int ret; | |
916 | struct pci_dev *pcidev; | |
917 | ||
918 | pcidev = NULL; | |
919 | while ((pcidev = dt_pci_find_device(pcidev, &board)) != NULL) { | |
920 | if ((bus == 0 && slot == 0) || | |
921 | (pcidev->bus->number == bus && | |
922 | PCI_SLOT(pcidev->devfn) == slot)) { | |
923 | break; | |
924 | } | |
925 | } | |
926 | devpriv->pci_dev = pcidev; | |
927 | ||
928 | if (board >= 0) | |
929 | dev->board_ptr = dt3k_boardtypes + board; | |
930 | ||
931 | if (!devpriv->pci_dev) | |
932 | return 0; | |
933 | ||
934 | if ((ret = setup_pci(dev)) < 0) | |
935 | return ret; | |
936 | ||
937 | return 1; | |
938 | } | |
939 | ||
71b5f4f1 | 940 | static int setup_pci(struct comedi_device * dev) |
9a21297d DS |
941 | { |
942 | resource_size_t addr; | |
943 | int ret; | |
944 | ||
945 | ret = comedi_pci_enable(devpriv->pci_dev, "dt3000"); | |
946 | if (ret < 0) | |
947 | return ret; | |
948 | ||
949 | addr = pci_resource_start(devpriv->pci_dev, 0); | |
950 | devpriv->phys_addr = addr; | |
951 | devpriv->io_addr = ioremap(devpriv->phys_addr, DT3000_SIZE); | |
952 | if (!devpriv->io_addr) | |
953 | return -ENOMEM; | |
954 | #if DEBUG | |
955 | printk("0x%08llx mapped to %p, ", | |
956 | (unsigned long long)devpriv->phys_addr, devpriv->io_addr); | |
957 | #endif | |
958 | ||
959 | return 0; | |
960 | } | |
961 | ||
962 | static struct pci_dev *dt_pci_find_device(struct pci_dev *from, int *board) | |
963 | { | |
964 | int i; | |
965 | ||
966 | for (from = pci_get_device(PCI_VENDOR_ID_DT, PCI_ANY_ID, from); | |
967 | from != NULL; | |
968 | from = pci_get_device(PCI_VENDOR_ID_DT, PCI_ANY_ID, from)) { | |
969 | for (i = 0; i < n_dt3k_boards; i++) { | |
970 | if (from->device == dt3k_boardtypes[i].device_id) { | |
971 | *board = i; | |
972 | return from; | |
973 | } | |
974 | } | |
975 | printk("unknown Data Translation PCI device found with device_id=0x%04x\n", from->device); | |
976 | } | |
977 | *board = -1; | |
978 | return from; | |
979 | } |