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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 | ||
25436dc9 | 62 | #include <linux/interrupt.h> |
9a21297d DS |
63 | #include "../comedidev.h" |
64 | #include <linux/delay.h> | |
65 | ||
66 | #include "comedi_pci.h" | |
67 | ||
68 | #define PCI_VENDOR_ID_DT 0x1116 | |
69 | ||
9ced1de6 | 70 | static const struct comedi_lrange range_dt3000_ai = { 4, { |
0a85b6f0 MT |
71 | RANGE(-10, 10), |
72 | RANGE(-5, 5), | |
73 | RANGE(-2.5, 2.5), | |
74 | RANGE(-1.25, 1.25) | |
75 | } | |
9a21297d | 76 | }; |
0a85b6f0 | 77 | |
9ced1de6 | 78 | static const struct comedi_lrange range_dt3000_ai_pgl = { 4, { |
0a85b6f0 MT |
79 | RANGE(-10, 10), |
80 | RANGE(-1, 1), | |
81 | RANGE(-0.1, 0.1), | |
82 | RANGE(-0.02, 0.02) | |
83 | } | |
9a21297d DS |
84 | }; |
85 | ||
c14e9208 BP |
86 | struct dt3k_boardtype { |
87 | ||
9a21297d DS |
88 | const char *name; |
89 | unsigned int device_id; | |
90 | int adchan; | |
91 | int adbits; | |
92 | int ai_speed; | |
9ced1de6 | 93 | const struct comedi_lrange *adrange; |
9a21297d DS |
94 | int dachan; |
95 | int dabits; | |
c14e9208 BP |
96 | }; |
97 | ||
c14e9208 | 98 | static const struct dt3k_boardtype dt3k_boardtypes[] = { |
68c3dbff BP |
99 | {.name = "dt3001", |
100 | .device_id = 0x22, | |
101 | .adchan = 16, | |
102 | .adbits = 12, | |
103 | .adrange = &range_dt3000_ai, | |
104 | .ai_speed = 3000, | |
105 | .dachan = 2, | |
106 | .dabits = 12, | |
0a85b6f0 | 107 | }, |
68c3dbff BP |
108 | {.name = "dt3001-pgl", |
109 | .device_id = 0x27, | |
110 | .adchan = 16, | |
111 | .adbits = 12, | |
112 | .adrange = &range_dt3000_ai_pgl, | |
113 | .ai_speed = 3000, | |
114 | .dachan = 2, | |
115 | .dabits = 12, | |
0a85b6f0 | 116 | }, |
68c3dbff BP |
117 | {.name = "dt3002", |
118 | .device_id = 0x23, | |
119 | .adchan = 32, | |
120 | .adbits = 12, | |
121 | .adrange = &range_dt3000_ai, | |
122 | .ai_speed = 3000, | |
123 | .dachan = 0, | |
124 | .dabits = 0, | |
0a85b6f0 | 125 | }, |
68c3dbff BP |
126 | {.name = "dt3003", |
127 | .device_id = 0x24, | |
128 | .adchan = 64, | |
129 | .adbits = 12, | |
130 | .adrange = &range_dt3000_ai, | |
131 | .ai_speed = 3000, | |
132 | .dachan = 2, | |
133 | .dabits = 12, | |
0a85b6f0 | 134 | }, |
68c3dbff BP |
135 | {.name = "dt3003-pgl", |
136 | .device_id = 0x28, | |
137 | .adchan = 64, | |
138 | .adbits = 12, | |
139 | .adrange = &range_dt3000_ai_pgl, | |
140 | .ai_speed = 3000, | |
141 | .dachan = 2, | |
142 | .dabits = 12, | |
0a85b6f0 | 143 | }, |
68c3dbff BP |
144 | {.name = "dt3004", |
145 | .device_id = 0x25, | |
146 | .adchan = 16, | |
147 | .adbits = 16, | |
148 | .adrange = &range_dt3000_ai, | |
149 | .ai_speed = 10000, | |
150 | .dachan = 2, | |
151 | .dabits = 12, | |
0a85b6f0 MT |
152 | }, |
153 | {.name = "dt3005", /* a.k.a. 3004-200 */ | |
68c3dbff BP |
154 | .device_id = 0x26, |
155 | .adchan = 16, | |
156 | .adbits = 16, | |
157 | .adrange = &range_dt3000_ai, | |
158 | .ai_speed = 5000, | |
159 | .dachan = 2, | |
160 | .dabits = 12, | |
0a85b6f0 | 161 | }, |
9a21297d DS |
162 | }; |
163 | ||
c14e9208 BP |
164 | #define n_dt3k_boards sizeof(dt3k_boardtypes)/sizeof(struct dt3k_boardtype) |
165 | #define this_board ((const struct dt3k_boardtype *)dev->board_ptr) | |
9a21297d DS |
166 | |
167 | static DEFINE_PCI_DEVICE_TABLE(dt3k_pci_table) = { | |
0a85b6f0 MT |
168 | { |
169 | PCI_VENDOR_ID_DT, 0x0022, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
170 | PCI_VENDOR_ID_DT, 0x0027, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
171 | PCI_VENDOR_ID_DT, 0x0023, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
172 | PCI_VENDOR_ID_DT, 0x0024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
173 | PCI_VENDOR_ID_DT, 0x0028, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
174 | PCI_VENDOR_ID_DT, 0x0025, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
175 | PCI_VENDOR_ID_DT, 0x0026, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
176 | 0} | |
9a21297d DS |
177 | }; |
178 | ||
179 | MODULE_DEVICE_TABLE(pci, dt3k_pci_table); | |
180 | ||
181 | #define DT3000_SIZE (4*0x1000) | |
182 | ||
183 | /* dual-ported RAM location definitions */ | |
184 | ||
185 | #define DPR_DAC_buffer (4*0x000) | |
186 | #define DPR_ADC_buffer (4*0x800) | |
187 | #define DPR_Command (4*0xfd3) | |
188 | #define DPR_SubSys (4*0xfd3) | |
189 | #define DPR_Encode (4*0xfd4) | |
190 | #define DPR_Params(a) (4*(0xfd5+(a))) | |
191 | #define DPR_Tick_Reg_Lo (4*0xff5) | |
192 | #define DPR_Tick_Reg_Hi (4*0xff6) | |
193 | #define DPR_DA_Buf_Front (4*0xff7) | |
194 | #define DPR_DA_Buf_Rear (4*0xff8) | |
195 | #define DPR_AD_Buf_Front (4*0xff9) | |
196 | #define DPR_AD_Buf_Rear (4*0xffa) | |
197 | #define DPR_Int_Mask (4*0xffb) | |
198 | #define DPR_Intr_Flag (4*0xffc) | |
199 | #define DPR_Response_Mbx (4*0xffe) | |
200 | #define DPR_Command_Mbx (4*0xfff) | |
201 | ||
202 | #define AI_FIFO_DEPTH 2003 | |
203 | #define AO_FIFO_DEPTH 2048 | |
204 | ||
205 | /* command list */ | |
206 | ||
207 | #define CMD_GETBRDINFO 0 | |
208 | #define CMD_CONFIG 1 | |
209 | #define CMD_GETCONFIG 2 | |
210 | #define CMD_START 3 | |
211 | #define CMD_STOP 4 | |
212 | #define CMD_READSINGLE 5 | |
213 | #define CMD_WRITESINGLE 6 | |
214 | #define CMD_CALCCLOCK 7 | |
215 | #define CMD_READEVENTS 8 | |
216 | #define CMD_WRITECTCTRL 16 | |
217 | #define CMD_READCTCTRL 17 | |
218 | #define CMD_WRITECT 18 | |
219 | #define CMD_READCT 19 | |
220 | #define CMD_WRITEDATA 32 | |
221 | #define CMD_READDATA 33 | |
222 | #define CMD_WRITEIO 34 | |
223 | #define CMD_READIO 35 | |
224 | #define CMD_WRITECODE 36 | |
225 | #define CMD_READCODE 37 | |
226 | #define CMD_EXECUTE 38 | |
227 | #define CMD_HALT 48 | |
228 | ||
229 | #define SUBS_AI 0 | |
230 | #define SUBS_AO 1 | |
231 | #define SUBS_DIN 2 | |
232 | #define SUBS_DOUT 3 | |
233 | #define SUBS_MEM 4 | |
234 | #define SUBS_CT 5 | |
235 | ||
236 | /* interrupt flags */ | |
237 | #define DT3000_CMDONE 0x80 | |
238 | #define DT3000_CTDONE 0x40 | |
239 | #define DT3000_DAHWERR 0x20 | |
240 | #define DT3000_DASWERR 0x10 | |
241 | #define DT3000_DAEMPTY 0x08 | |
242 | #define DT3000_ADHWERR 0x04 | |
243 | #define DT3000_ADSWERR 0x02 | |
244 | #define DT3000_ADFULL 0x01 | |
245 | ||
246 | #define DT3000_COMPLETION_MASK 0xff00 | |
247 | #define DT3000_COMMAND_MASK 0x00ff | |
248 | #define DT3000_NOTPROCESSED 0x0000 | |
249 | #define DT3000_NOERROR 0x5500 | |
250 | #define DT3000_ERROR 0xaa00 | |
251 | #define DT3000_NOTSUPPORTED 0xff00 | |
252 | ||
253 | #define DT3000_EXTERNAL_CLOCK 1 | |
254 | #define DT3000_RISING_EDGE 2 | |
255 | ||
256 | #define TMODE_MASK 0x1c | |
257 | ||
258 | #define DT3000_AD_TRIG_INTERNAL (0<<2) | |
259 | #define DT3000_AD_TRIG_EXTERNAL (1<<2) | |
260 | #define DT3000_AD_RETRIG_INTERNAL (2<<2) | |
261 | #define DT3000_AD_RETRIG_EXTERNAL (3<<2) | |
262 | #define DT3000_AD_EXTRETRIG (4<<2) | |
263 | ||
264 | #define DT3000_CHANNEL_MODE_SE 0 | |
265 | #define DT3000_CHANNEL_MODE_DI 1 | |
266 | ||
b81c8035 BP |
267 | struct dt3k_private { |
268 | ||
9a21297d DS |
269 | struct pci_dev *pci_dev; |
270 | resource_size_t phys_addr; | |
271 | void *io_addr; | |
272 | unsigned int lock; | |
790c5541 | 273 | unsigned int ao_readback[2]; |
9a21297d DS |
274 | unsigned int ai_front; |
275 | unsigned int ai_rear; | |
b81c8035 BP |
276 | }; |
277 | ||
278 | #define devpriv ((struct dt3k_private *)dev->private) | |
9a21297d | 279 | |
0a85b6f0 MT |
280 | static int dt3000_attach(struct comedi_device *dev, |
281 | struct comedi_devconfig *it); | |
da91b269 | 282 | static int dt3000_detach(struct comedi_device *dev); |
139dfbdf | 283 | static struct comedi_driver driver_dt3000 = { |
68c3dbff BP |
284 | .driver_name = "dt3000", |
285 | .module = THIS_MODULE, | |
286 | .attach = dt3000_attach, | |
287 | .detach = dt3000_detach, | |
9a21297d DS |
288 | }; |
289 | ||
290 | COMEDI_PCI_INITCLEANUP(driver_dt3000, dt3k_pci_table); | |
291 | ||
0a85b6f0 MT |
292 | static void dt3k_ai_empty_fifo(struct comedi_device *dev, |
293 | struct comedi_subdevice *s); | |
9a21297d | 294 | static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *arg, |
0a85b6f0 MT |
295 | unsigned int round_mode); |
296 | static int dt3k_ai_cancel(struct comedi_device *dev, | |
297 | struct comedi_subdevice *s); | |
9a21297d DS |
298 | #ifdef DEBUG |
299 | static void debug_intr_flags(unsigned int flags); | |
300 | #endif | |
301 | ||
302 | #define TIMEOUT 100 | |
303 | ||
da91b269 | 304 | static int dt3k_send_cmd(struct comedi_device *dev, unsigned int cmd) |
9a21297d DS |
305 | { |
306 | int i; | |
307 | unsigned int status = 0; | |
308 | ||
309 | writew(cmd, devpriv->io_addr + DPR_Command_Mbx); | |
310 | ||
311 | for (i = 0; i < TIMEOUT; i++) { | |
312 | status = readw(devpriv->io_addr + DPR_Command_Mbx); | |
313 | if ((status & DT3000_COMPLETION_MASK) != DT3000_NOTPROCESSED) | |
314 | break; | |
5f74ea14 | 315 | udelay(1); |
9a21297d DS |
316 | } |
317 | if ((status & DT3000_COMPLETION_MASK) == DT3000_NOERROR) { | |
318 | return 0; | |
319 | } | |
320 | ||
321 | printk("dt3k_send_cmd() timeout/error status=0x%04x\n", status); | |
322 | ||
323 | return -ETIME; | |
324 | } | |
325 | ||
0a85b6f0 MT |
326 | static unsigned int dt3k_readsingle(struct comedi_device *dev, |
327 | unsigned int subsys, unsigned int chan, | |
328 | unsigned int gain) | |
9a21297d DS |
329 | { |
330 | writew(subsys, devpriv->io_addr + DPR_SubSys); | |
331 | ||
332 | writew(chan, devpriv->io_addr + DPR_Params(0)); | |
333 | writew(gain, devpriv->io_addr + DPR_Params(1)); | |
334 | ||
335 | dt3k_send_cmd(dev, CMD_READSINGLE); | |
336 | ||
337 | return readw(devpriv->io_addr + DPR_Params(2)); | |
338 | } | |
339 | ||
da91b269 | 340 | static void dt3k_writesingle(struct comedi_device *dev, unsigned int subsys, |
0a85b6f0 | 341 | unsigned int chan, unsigned int data) |
9a21297d DS |
342 | { |
343 | writew(subsys, devpriv->io_addr + DPR_SubSys); | |
344 | ||
345 | writew(chan, devpriv->io_addr + DPR_Params(0)); | |
346 | writew(0, devpriv->io_addr + DPR_Params(1)); | |
347 | writew(data, devpriv->io_addr + DPR_Params(2)); | |
348 | ||
349 | dt3k_send_cmd(dev, CMD_WRITESINGLE); | |
350 | } | |
351 | ||
352 | static int debug_n_ints = 0; | |
353 | ||
2696fb57 BP |
354 | /* FIXME! Assumes shared interrupt is for this card. */ |
355 | /* What's this debug_n_ints stuff? Obviously needs some work... */ | |
70265d24 | 356 | static irqreturn_t dt3k_interrupt(int irq, void *d) |
9a21297d | 357 | { |
71b5f4f1 | 358 | struct comedi_device *dev = d; |
34c43922 | 359 | struct comedi_subdevice *s; |
9a21297d DS |
360 | unsigned int status; |
361 | ||
362 | if (!dev->attached) { | |
363 | return IRQ_NONE; | |
364 | } | |
365 | ||
366 | s = dev->subdevices + 0; | |
367 | status = readw(devpriv->io_addr + DPR_Intr_Flag); | |
368 | #ifdef DEBUG | |
369 | debug_intr_flags(status); | |
370 | #endif | |
371 | ||
372 | if (status & DT3000_ADFULL) { | |
373 | dt3k_ai_empty_fifo(dev, s); | |
374 | s->async->events |= COMEDI_CB_BLOCK; | |
375 | } | |
376 | ||
377 | if (status & (DT3000_ADSWERR | DT3000_ADHWERR)) { | |
378 | s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA; | |
379 | } | |
380 | ||
381 | debug_n_ints++; | |
382 | if (debug_n_ints >= 10) { | |
383 | dt3k_ai_cancel(dev, s); | |
384 | s->async->events |= COMEDI_CB_EOA; | |
385 | } | |
386 | ||
387 | comedi_event(dev, s); | |
388 | return IRQ_HANDLED; | |
389 | } | |
390 | ||
391 | #ifdef DEBUG | |
392 | static char *intr_flags[] = { | |
393 | "AdFull", "AdSwError", "AdHwError", "DaEmpty", | |
394 | "DaSwError", "DaHwError", "CtDone", "CmDone", | |
395 | }; | |
0a85b6f0 | 396 | |
9a21297d DS |
397 | static void debug_intr_flags(unsigned int flags) |
398 | { | |
399 | int i; | |
400 | printk("dt3k: intr_flags:"); | |
401 | for (i = 0; i < 8; i++) { | |
402 | if (flags & (1 << i)) { | |
403 | printk(" %s", intr_flags[i]); | |
404 | } | |
405 | } | |
406 | printk("\n"); | |
407 | } | |
408 | #endif | |
409 | ||
0a85b6f0 MT |
410 | static void dt3k_ai_empty_fifo(struct comedi_device *dev, |
411 | struct comedi_subdevice *s) | |
9a21297d DS |
412 | { |
413 | int front; | |
414 | int rear; | |
415 | int count; | |
416 | int i; | |
790c5541 | 417 | short data; |
9a21297d DS |
418 | |
419 | front = readw(devpriv->io_addr + DPR_AD_Buf_Front); | |
420 | count = front - devpriv->ai_front; | |
421 | if (count < 0) | |
422 | count += AI_FIFO_DEPTH; | |
423 | ||
424 | printk("reading %d samples\n", count); | |
425 | ||
426 | rear = devpriv->ai_rear; | |
427 | ||
428 | for (i = 0; i < count; i++) { | |
429 | data = readw(devpriv->io_addr + DPR_ADC_buffer + rear); | |
430 | comedi_buf_put(s->async, data); | |
431 | rear++; | |
432 | if (rear >= AI_FIFO_DEPTH) | |
433 | rear = 0; | |
434 | } | |
435 | ||
436 | devpriv->ai_rear = rear; | |
437 | writew(rear, devpriv->io_addr + DPR_AD_Buf_Rear); | |
438 | } | |
439 | ||
0a85b6f0 MT |
440 | static int dt3k_ai_cmdtest(struct comedi_device *dev, |
441 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
9a21297d DS |
442 | { |
443 | int err = 0; | |
444 | int tmp; | |
445 | ||
446 | /* step 1: make sure trigger sources are trivially valid */ | |
447 | ||
448 | tmp = cmd->start_src; | |
449 | cmd->start_src &= TRIG_NOW; | |
450 | if (!cmd->start_src || tmp != cmd->start_src) | |
451 | err++; | |
452 | ||
453 | tmp = cmd->scan_begin_src; | |
454 | cmd->scan_begin_src &= TRIG_TIMER; | |
455 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
456 | err++; | |
457 | ||
458 | tmp = cmd->convert_src; | |
459 | cmd->convert_src &= TRIG_TIMER; | |
460 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
461 | err++; | |
462 | ||
463 | tmp = cmd->scan_end_src; | |
464 | cmd->scan_end_src &= TRIG_COUNT; | |
465 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
466 | err++; | |
467 | ||
468 | tmp = cmd->stop_src; | |
469 | cmd->stop_src &= TRIG_COUNT; | |
470 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
471 | err++; | |
472 | ||
473 | if (err) | |
474 | return 1; | |
475 | ||
476 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
477 | ||
478 | if (err) | |
479 | return 2; | |
480 | ||
481 | /* step 3: make sure arguments are trivially compatible */ | |
482 | ||
483 | if (cmd->start_arg != 0) { | |
484 | cmd->start_arg = 0; | |
485 | err++; | |
486 | } | |
487 | ||
488 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
489 | if (cmd->scan_begin_arg < this_board->ai_speed) { | |
490 | cmd->scan_begin_arg = this_board->ai_speed; | |
491 | err++; | |
492 | } | |
493 | if (cmd->scan_begin_arg > 100 * 16 * 65535) { | |
494 | cmd->scan_begin_arg = 100 * 16 * 65535; | |
495 | err++; | |
496 | } | |
497 | } else { | |
498 | /* not supported */ | |
499 | } | |
500 | if (cmd->convert_src == TRIG_TIMER) { | |
501 | if (cmd->convert_arg < this_board->ai_speed) { | |
502 | cmd->convert_arg = this_board->ai_speed; | |
503 | err++; | |
504 | } | |
505 | if (cmd->convert_arg > 50 * 16 * 65535) { | |
506 | cmd->convert_arg = 50 * 16 * 65535; | |
507 | err++; | |
508 | } | |
509 | } else { | |
510 | /* not supported */ | |
511 | } | |
512 | ||
513 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
514 | cmd->scan_end_arg = cmd->chanlist_len; | |
515 | err++; | |
516 | } | |
517 | if (cmd->stop_src == TRIG_COUNT) { | |
518 | if (cmd->stop_arg > 0x00ffffff) { | |
519 | cmd->stop_arg = 0x00ffffff; | |
520 | err++; | |
521 | } | |
522 | } else { | |
523 | /* TRIG_NONE */ | |
524 | if (cmd->stop_arg != 0) { | |
525 | cmd->stop_arg = 0; | |
526 | err++; | |
527 | } | |
528 | } | |
529 | ||
530 | if (err) | |
531 | return 3; | |
532 | ||
533 | /* step 4: fix up any arguments */ | |
534 | ||
535 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
536 | tmp = cmd->scan_begin_arg; | |
537 | dt3k_ns_to_timer(100, &cmd->scan_begin_arg, | |
0a85b6f0 | 538 | cmd->flags & TRIG_ROUND_MASK); |
9a21297d DS |
539 | if (tmp != cmd->scan_begin_arg) |
540 | err++; | |
541 | } else { | |
542 | /* not supported */ | |
543 | } | |
544 | if (cmd->convert_src == TRIG_TIMER) { | |
545 | tmp = cmd->convert_arg; | |
546 | dt3k_ns_to_timer(50, &cmd->convert_arg, | |
0a85b6f0 | 547 | cmd->flags & TRIG_ROUND_MASK); |
9a21297d DS |
548 | if (tmp != cmd->convert_arg) |
549 | err++; | |
550 | if (cmd->scan_begin_src == TRIG_TIMER && | |
0a85b6f0 MT |
551 | cmd->scan_begin_arg < |
552 | cmd->convert_arg * cmd->scan_end_arg) { | |
9a21297d | 553 | cmd->scan_begin_arg = |
0a85b6f0 | 554 | cmd->convert_arg * cmd->scan_end_arg; |
9a21297d DS |
555 | err++; |
556 | } | |
557 | } else { | |
558 | /* not supported */ | |
559 | } | |
560 | ||
561 | if (err) | |
562 | return 4; | |
563 | ||
564 | return 0; | |
565 | } | |
566 | ||
567 | static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec, | |
0a85b6f0 | 568 | unsigned int round_mode) |
9a21297d DS |
569 | { |
570 | int divider, base, prescale; | |
571 | ||
572 | /* This function needs improvment */ | |
573 | /* Don't know if divider==0 works. */ | |
574 | ||
575 | for (prescale = 0; prescale < 16; prescale++) { | |
576 | base = timer_base * (prescale + 1); | |
577 | switch (round_mode) { | |
578 | case TRIG_ROUND_NEAREST: | |
579 | default: | |
580 | divider = (*nanosec + base / 2) / base; | |
581 | break; | |
582 | case TRIG_ROUND_DOWN: | |
583 | divider = (*nanosec) / base; | |
584 | break; | |
585 | case TRIG_ROUND_UP: | |
586 | divider = (*nanosec) / base; | |
587 | break; | |
588 | } | |
589 | if (divider < 65536) { | |
590 | *nanosec = divider * base; | |
591 | return (prescale << 16) | (divider); | |
592 | } | |
593 | } | |
594 | ||
595 | prescale = 15; | |
596 | base = timer_base * (1 << prescale); | |
597 | divider = 65535; | |
598 | *nanosec = divider * base; | |
599 | return (prescale << 16) | (divider); | |
600 | } | |
601 | ||
da91b269 | 602 | static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
9a21297d | 603 | { |
ea6d0d4c | 604 | struct comedi_cmd *cmd = &s->async->cmd; |
9a21297d DS |
605 | int i; |
606 | unsigned int chan, range, aref; | |
607 | unsigned int divider; | |
608 | unsigned int tscandiv; | |
609 | int ret; | |
610 | unsigned int mode; | |
611 | ||
612 | printk("dt3k_ai_cmd:\n"); | |
613 | for (i = 0; i < cmd->chanlist_len; i++) { | |
614 | chan = CR_CHAN(cmd->chanlist[i]); | |
615 | range = CR_RANGE(cmd->chanlist[i]); | |
616 | ||
617 | writew((range << 6) | chan, | |
0a85b6f0 | 618 | devpriv->io_addr + DPR_ADC_buffer + i); |
9a21297d DS |
619 | } |
620 | aref = CR_AREF(cmd->chanlist[0]); | |
621 | ||
622 | writew(cmd->scan_end_arg, devpriv->io_addr + DPR_Params(0)); | |
623 | printk("param[0]=0x%04x\n", cmd->scan_end_arg); | |
624 | ||
625 | if (cmd->convert_src == TRIG_TIMER) { | |
626 | divider = dt3k_ns_to_timer(50, &cmd->convert_arg, | |
0a85b6f0 | 627 | cmd->flags & TRIG_ROUND_MASK); |
9a21297d DS |
628 | writew((divider >> 16), devpriv->io_addr + DPR_Params(1)); |
629 | printk("param[1]=0x%04x\n", divider >> 16); | |
630 | writew((divider & 0xffff), devpriv->io_addr + DPR_Params(2)); | |
631 | printk("param[2]=0x%04x\n", divider & 0xffff); | |
632 | } else { | |
633 | /* not supported */ | |
634 | } | |
635 | ||
636 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
637 | tscandiv = dt3k_ns_to_timer(100, &cmd->scan_begin_arg, | |
0a85b6f0 | 638 | cmd->flags & TRIG_ROUND_MASK); |
9a21297d DS |
639 | writew((tscandiv >> 16), devpriv->io_addr + DPR_Params(3)); |
640 | printk("param[3]=0x%04x\n", tscandiv >> 16); | |
641 | writew((tscandiv & 0xffff), devpriv->io_addr + DPR_Params(4)); | |
642 | printk("param[4]=0x%04x\n", tscandiv & 0xffff); | |
643 | } else { | |
644 | /* not supported */ | |
645 | } | |
646 | ||
647 | mode = DT3000_AD_RETRIG_INTERNAL | 0 | 0; | |
648 | writew(mode, devpriv->io_addr + DPR_Params(5)); | |
649 | printk("param[5]=0x%04x\n", mode); | |
650 | writew(aref == AREF_DIFF, devpriv->io_addr + DPR_Params(6)); | |
651 | printk("param[6]=0x%04x\n", aref == AREF_DIFF); | |
652 | ||
653 | writew(AI_FIFO_DEPTH / 2, devpriv->io_addr + DPR_Params(7)); | |
654 | printk("param[7]=0x%04x\n", AI_FIFO_DEPTH / 2); | |
655 | ||
656 | writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); | |
657 | ret = dt3k_send_cmd(dev, CMD_CONFIG); | |
658 | ||
659 | writew(DT3000_ADFULL | DT3000_ADSWERR | DT3000_ADHWERR, | |
0a85b6f0 | 660 | devpriv->io_addr + DPR_Int_Mask); |
9a21297d DS |
661 | |
662 | debug_n_ints = 0; | |
663 | ||
664 | writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); | |
665 | ret = dt3k_send_cmd(dev, CMD_START); | |
666 | ||
667 | return 0; | |
668 | } | |
669 | ||
da91b269 | 670 | static int dt3k_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) |
9a21297d DS |
671 | { |
672 | int ret; | |
673 | ||
674 | writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); | |
675 | ret = dt3k_send_cmd(dev, CMD_STOP); | |
676 | ||
677 | writew(0, devpriv->io_addr + DPR_Int_Mask); | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
da91b269 | 682 | static int dt3k_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 683 | struct comedi_insn *insn, unsigned int *data) |
9a21297d DS |
684 | { |
685 | int i; | |
686 | unsigned int chan, gain, aref; | |
687 | ||
688 | chan = CR_CHAN(insn->chanspec); | |
689 | gain = CR_RANGE(insn->chanspec); | |
690 | /* XXX docs don't explain how to select aref */ | |
691 | aref = CR_AREF(insn->chanspec); | |
692 | ||
693 | for (i = 0; i < insn->n; i++) { | |
694 | data[i] = dt3k_readsingle(dev, SUBS_AI, chan, gain); | |
695 | } | |
696 | ||
697 | return i; | |
698 | } | |
699 | ||
da91b269 | 700 | static int dt3k_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 701 | struct comedi_insn *insn, unsigned int *data) |
9a21297d DS |
702 | { |
703 | int i; | |
704 | unsigned int chan; | |
705 | ||
706 | chan = CR_CHAN(insn->chanspec); | |
707 | for (i = 0; i < insn->n; i++) { | |
708 | dt3k_writesingle(dev, SUBS_AO, chan, data[i]); | |
709 | devpriv->ao_readback[chan] = data[i]; | |
710 | } | |
711 | ||
712 | return i; | |
713 | } | |
714 | ||
0a85b6f0 MT |
715 | static int dt3k_ao_insn_read(struct comedi_device *dev, |
716 | struct comedi_subdevice *s, | |
717 | struct comedi_insn *insn, unsigned int *data) | |
9a21297d DS |
718 | { |
719 | int i; | |
720 | unsigned int chan; | |
721 | ||
722 | chan = CR_CHAN(insn->chanspec); | |
723 | for (i = 0; i < insn->n; i++) { | |
724 | data[i] = devpriv->ao_readback[chan]; | |
725 | } | |
726 | ||
727 | return i; | |
728 | } | |
729 | ||
da91b269 | 730 | static void dt3k_dio_config(struct comedi_device *dev, int bits) |
9a21297d DS |
731 | { |
732 | /* XXX */ | |
733 | writew(SUBS_DOUT, devpriv->io_addr + DPR_SubSys); | |
734 | ||
735 | writew(bits, devpriv->io_addr + DPR_Params(0)); | |
736 | #if 0 | |
737 | /* don't know */ | |
738 | writew(0, devpriv->io_addr + DPR_Params(1)); | |
739 | writew(0, devpriv->io_addr + DPR_Params(2)); | |
740 | #endif | |
741 | ||
742 | dt3k_send_cmd(dev, CMD_CONFIG); | |
743 | } | |
744 | ||
0a85b6f0 MT |
745 | static int dt3k_dio_insn_config(struct comedi_device *dev, |
746 | struct comedi_subdevice *s, | |
747 | struct comedi_insn *insn, unsigned int *data) | |
9a21297d DS |
748 | { |
749 | int mask; | |
750 | ||
751 | mask = (CR_CHAN(insn->chanspec) < 4) ? 0x0f : 0xf0; | |
752 | ||
753 | switch (data[0]) { | |
754 | case INSN_CONFIG_DIO_OUTPUT: | |
755 | s->io_bits |= mask; | |
756 | break; | |
757 | case INSN_CONFIG_DIO_INPUT: | |
758 | s->io_bits &= ~mask; | |
759 | break; | |
760 | case INSN_CONFIG_DIO_QUERY: | |
761 | data[1] = | |
0a85b6f0 MT |
762 | (s-> |
763 | io_bits & (1 << CR_CHAN(insn->chanspec))) ? COMEDI_OUTPUT : | |
764 | COMEDI_INPUT; | |
9a21297d DS |
765 | return insn->n; |
766 | break; | |
767 | default: | |
768 | return -EINVAL; | |
769 | break; | |
770 | } | |
771 | mask = (s->io_bits & 0x01) | ((s->io_bits & 0x10) >> 3); | |
772 | dt3k_dio_config(dev, mask); | |
773 | ||
774 | return insn->n; | |
775 | } | |
776 | ||
0a85b6f0 MT |
777 | static int dt3k_dio_insn_bits(struct comedi_device *dev, |
778 | struct comedi_subdevice *s, | |
779 | struct comedi_insn *insn, unsigned int *data) | |
9a21297d DS |
780 | { |
781 | if (insn->n != 2) | |
782 | return -EINVAL; | |
783 | ||
784 | if (data[0]) { | |
785 | s->state &= ~data[0]; | |
786 | s->state |= data[1] & data[0]; | |
787 | dt3k_writesingle(dev, SUBS_DOUT, 0, s->state); | |
788 | } | |
789 | data[1] = dt3k_readsingle(dev, SUBS_DIN, 0, 0); | |
790 | ||
791 | return 2; | |
792 | } | |
793 | ||
0a85b6f0 MT |
794 | static int dt3k_mem_insn_read(struct comedi_device *dev, |
795 | struct comedi_subdevice *s, | |
796 | struct comedi_insn *insn, unsigned int *data) | |
9a21297d DS |
797 | { |
798 | unsigned int addr = CR_CHAN(insn->chanspec); | |
799 | int i; | |
800 | ||
801 | for (i = 0; i < insn->n; i++) { | |
802 | writew(SUBS_MEM, devpriv->io_addr + DPR_SubSys); | |
803 | writew(addr, devpriv->io_addr + DPR_Params(0)); | |
804 | writew(1, devpriv->io_addr + DPR_Params(1)); | |
805 | ||
806 | dt3k_send_cmd(dev, CMD_READCODE); | |
807 | ||
808 | data[i] = readw(devpriv->io_addr + DPR_Params(2)); | |
809 | } | |
810 | ||
811 | return i; | |
812 | } | |
813 | ||
da91b269 | 814 | static int dt_pci_probe(struct comedi_device *dev, int bus, int slot); |
9a21297d | 815 | |
da91b269 | 816 | static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it) |
9a21297d | 817 | { |
34c43922 | 818 | struct comedi_subdevice *s; |
9a21297d DS |
819 | int bus, slot; |
820 | int ret = 0; | |
821 | ||
822 | printk("dt3000:"); | |
823 | bus = it->options[0]; | |
824 | slot = it->options[1]; | |
825 | ||
c3744138 BP |
826 | ret = alloc_private(dev, sizeof(struct dt3k_private)); |
827 | if (ret < 0) | |
9a21297d DS |
828 | return ret; |
829 | ||
830 | ret = dt_pci_probe(dev, bus, slot); | |
831 | if (ret < 0) | |
832 | return ret; | |
833 | if (ret == 0) { | |
834 | printk(" no DT board found\n"); | |
835 | return -ENODEV; | |
836 | } | |
837 | ||
838 | dev->board_name = this_board->name; | |
839 | ||
5f74ea14 GKH |
840 | if (request_irq(devpriv->pci_dev->irq, dt3k_interrupt, IRQF_SHARED, |
841 | "dt3000", dev)) { | |
9a21297d DS |
842 | printk(" unable to allocate IRQ %u\n", devpriv->pci_dev->irq); |
843 | return -EINVAL; | |
844 | } | |
845 | dev->irq = devpriv->pci_dev->irq; | |
846 | ||
c3744138 BP |
847 | ret = alloc_subdevices(dev, 4); |
848 | if (ret < 0) | |
9a21297d DS |
849 | return ret; |
850 | ||
851 | s = dev->subdevices; | |
852 | dev->read_subdev = s; | |
853 | ||
854 | /* ai subdevice */ | |
855 | s->type = COMEDI_SUBD_AI; | |
856 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; | |
857 | s->n_chan = this_board->adchan; | |
858 | s->insn_read = dt3k_ai_insn; | |
859 | s->maxdata = (1 << this_board->adbits) - 1; | |
860 | s->len_chanlist = 512; | |
861 | s->range_table = &range_dt3000_ai; /* XXX */ | |
862 | s->do_cmd = dt3k_ai_cmd; | |
863 | s->do_cmdtest = dt3k_ai_cmdtest; | |
864 | s->cancel = dt3k_ai_cancel; | |
865 | ||
866 | s++; | |
867 | /* ao subsystem */ | |
868 | s->type = COMEDI_SUBD_AO; | |
869 | s->subdev_flags = SDF_WRITABLE; | |
870 | s->n_chan = 2; | |
871 | s->insn_read = dt3k_ao_insn_read; | |
872 | s->insn_write = dt3k_ao_insn; | |
873 | s->maxdata = (1 << this_board->dabits) - 1; | |
874 | s->len_chanlist = 1; | |
875 | s->range_table = &range_bipolar10; | |
876 | ||
877 | s++; | |
878 | /* dio subsystem */ | |
879 | s->type = COMEDI_SUBD_DIO; | |
880 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
881 | s->n_chan = 8; | |
882 | s->insn_config = dt3k_dio_insn_config; | |
883 | s->insn_bits = dt3k_dio_insn_bits; | |
884 | s->maxdata = 1; | |
885 | s->len_chanlist = 8; | |
886 | s->range_table = &range_digital; | |
887 | ||
888 | s++; | |
889 | /* mem subsystem */ | |
890 | s->type = COMEDI_SUBD_MEMORY; | |
891 | s->subdev_flags = SDF_READABLE; | |
892 | s->n_chan = 0x1000; | |
893 | s->insn_read = dt3k_mem_insn_read; | |
894 | s->maxdata = 0xff; | |
895 | s->len_chanlist = 1; | |
896 | s->range_table = &range_unknown; | |
897 | ||
898 | #if 0 | |
899 | s++; | |
900 | /* proc subsystem */ | |
901 | s->type = COMEDI_SUBD_PROC; | |
902 | #endif | |
903 | ||
904 | return 0; | |
905 | } | |
906 | ||
da91b269 | 907 | static int dt3000_detach(struct comedi_device *dev) |
9a21297d DS |
908 | { |
909 | if (dev->irq) | |
5f74ea14 | 910 | free_irq(dev->irq, dev); |
9a21297d DS |
911 | |
912 | if (devpriv) { | |
913 | if (devpriv->pci_dev) { | |
914 | if (devpriv->phys_addr) { | |
915 | comedi_pci_disable(devpriv->pci_dev); | |
916 | } | |
917 | pci_dev_put(devpriv->pci_dev); | |
918 | } | |
919 | if (devpriv->io_addr) | |
920 | iounmap(devpriv->io_addr); | |
921 | } | |
922 | /* XXX */ | |
923 | ||
924 | return 0; | |
925 | } | |
926 | ||
927 | static struct pci_dev *dt_pci_find_device(struct pci_dev *from, int *board); | |
da91b269 | 928 | static int setup_pci(struct comedi_device *dev); |
9a21297d | 929 | |
da91b269 | 930 | static int dt_pci_probe(struct comedi_device *dev, int bus, int slot) |
9a21297d DS |
931 | { |
932 | int board; | |
933 | int ret; | |
934 | struct pci_dev *pcidev; | |
935 | ||
936 | pcidev = NULL; | |
937 | while ((pcidev = dt_pci_find_device(pcidev, &board)) != NULL) { | |
938 | if ((bus == 0 && slot == 0) || | |
0a85b6f0 MT |
939 | (pcidev->bus->number == bus && |
940 | PCI_SLOT(pcidev->devfn) == slot)) { | |
9a21297d DS |
941 | break; |
942 | } | |
943 | } | |
944 | devpriv->pci_dev = pcidev; | |
945 | ||
946 | if (board >= 0) | |
947 | dev->board_ptr = dt3k_boardtypes + board; | |
948 | ||
949 | if (!devpriv->pci_dev) | |
950 | return 0; | |
951 | ||
c3744138 BP |
952 | ret = setup_pci(dev); |
953 | if (ret < 0) | |
9a21297d DS |
954 | return ret; |
955 | ||
956 | return 1; | |
957 | } | |
958 | ||
da91b269 | 959 | static int setup_pci(struct comedi_device *dev) |
9a21297d DS |
960 | { |
961 | resource_size_t addr; | |
962 | int ret; | |
963 | ||
964 | ret = comedi_pci_enable(devpriv->pci_dev, "dt3000"); | |
965 | if (ret < 0) | |
966 | return ret; | |
967 | ||
968 | addr = pci_resource_start(devpriv->pci_dev, 0); | |
969 | devpriv->phys_addr = addr; | |
970 | devpriv->io_addr = ioremap(devpriv->phys_addr, DT3000_SIZE); | |
971 | if (!devpriv->io_addr) | |
972 | return -ENOMEM; | |
973 | #if DEBUG | |
974 | printk("0x%08llx mapped to %p, ", | |
0a85b6f0 | 975 | (unsigned long long)devpriv->phys_addr, devpriv->io_addr); |
9a21297d DS |
976 | #endif |
977 | ||
978 | return 0; | |
979 | } | |
980 | ||
981 | static struct pci_dev *dt_pci_find_device(struct pci_dev *from, int *board) | |
982 | { | |
983 | int i; | |
984 | ||
985 | for (from = pci_get_device(PCI_VENDOR_ID_DT, PCI_ANY_ID, from); | |
0a85b6f0 MT |
986 | from != NULL; |
987 | from = pci_get_device(PCI_VENDOR_ID_DT, PCI_ANY_ID, from)) { | |
9a21297d DS |
988 | for (i = 0; i < n_dt3k_boards; i++) { |
989 | if (from->device == dt3k_boardtypes[i].device_id) { | |
990 | *board = i; | |
991 | return from; | |
992 | } | |
993 | } | |
0a85b6f0 MT |
994 | printk |
995 | ("unknown Data Translation PCI device found with device_id=0x%04x\n", | |
996 | from->device); | |
9a21297d DS |
997 | } |
998 | *board = -1; | |
999 | return from; | |
1000 | } |