Commit | Line | Data |
---|---|---|
f47c697d | 1 | /* |
533de0f8 | 2 | * Copyright (C) 2004-2014 Bernd Porr, mail@berndporr.me.uk |
4e8ad0dc MK |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
4e8ad0dc | 13 | */ |
f47c697d | 14 | |
533de0f8 BP |
15 | /* |
16 | * Driver: usbduxfast | |
17 | * Description: University of Stirling USB DAQ & INCITE Technology Limited | |
504a1aa7 | 18 | * Devices: [ITL] USB-DUX-FAST (usbduxfast) |
533de0f8 BP |
19 | * Author: Bernd Porr <mail@berndporr.me.uk> |
20 | * Updated: 10 Oct 2014 | |
21 | * Status: stable | |
22 | */ | |
23 | ||
f47c697d BP |
24 | /* |
25 | * I must give credit here to Chris Baugher who | |
26 | * wrote the driver for AT-MIO-16d. I used some parts of this | |
27 | * driver. I also must give credits to David Brownell | |
28 | * who supported me with the USB development. | |
29 | * | |
30 | * Bernd Porr | |
31 | * | |
32 | * | |
33 | * Revision history: | |
34 | * 0.9: Dropping the first data packet which seems to be from the last transfer. | |
35 | * Buffer overflows in the FX2 are handed over to comedi. | |
36 | * 0.92: Dropping now 4 packets. The quad buffer has to be emptied. | |
4e8ad0dc MK |
37 | * Added insn command basically for testing. Sample rate is |
38 | * 1MHz/16ch=62.5kHz | |
f47c697d BP |
39 | * 0.99: Ian Abbott pointed out a bug which has been corrected. Thanks! |
40 | * 0.99a: added external trigger. | |
6742c0af BP |
41 | * 1.00: added firmware kernel request to the driver which fixed |
42 | * udev coldplug problem | |
f47c697d BP |
43 | */ |
44 | ||
45 | #include <linux/kernel.h> | |
46 | #include <linux/module.h> | |
f47c697d BP |
47 | #include <linux/slab.h> |
48 | #include <linux/input.h> | |
f47c697d BP |
49 | #include <linux/fcntl.h> |
50 | #include <linux/compiler.h> | |
d3f83952 | 51 | #include "../comedi_usb.h" |
f47c697d | 52 | |
4e8ad0dc MK |
53 | /* |
54 | * timeout for the USB-transfer | |
55 | */ | |
56 | #define EZTIMEOUT 30 | |
f47c697d | 57 | |
4e8ad0dc MK |
58 | /* |
59 | * constants for "firmware" upload and download | |
60 | */ | |
e74f7fc5 | 61 | #define FIRMWARE "usbduxfast_firmware.bin" |
dcd29f56 | 62 | #define FIRMWARE_MAX_LEN 0x2000 |
4e8ad0dc MK |
63 | #define USBDUXFASTSUB_FIRMWARE 0xA0 |
64 | #define VENDOR_DIR_IN 0xC0 | |
65 | #define VENDOR_DIR_OUT 0x40 | |
f47c697d | 66 | |
4e8ad0dc | 67 | /* |
f69b0d64 | 68 | * internal addresses of the 8051 processor |
4e8ad0dc MK |
69 | */ |
70 | #define USBDUXFASTSUB_CPUCS 0xE600 | |
f47c697d | 71 | |
4e8ad0dc MK |
72 | /* |
73 | * max lenghth of the transfer-buffer for software upload | |
74 | */ | |
75 | #define TB_LEN 0x2000 | |
f47c697d | 76 | |
4e8ad0dc MK |
77 | /* |
78 | * input endpoint number | |
79 | */ | |
80 | #define BULKINEP 6 | |
f47c697d | 81 | |
4e8ad0dc MK |
82 | /* |
83 | * endpoint for the A/D channellist: bulk OUT | |
84 | */ | |
85 | #define CHANNELLISTEP 4 | |
f47c697d | 86 | |
4e8ad0dc MK |
87 | /* |
88 | * number of channels | |
89 | */ | |
90 | #define NUMCHANNELS 32 | |
f47c697d | 91 | |
4e8ad0dc MK |
92 | /* |
93 | * size of the waveform descriptor | |
94 | */ | |
95 | #define WAVESIZE 0x20 | |
f47c697d | 96 | |
4e8ad0dc MK |
97 | /* |
98 | * size of one A/D value | |
99 | */ | |
26961546 | 100 | #define SIZEADIN (sizeof(s16)) |
f47c697d | 101 | |
4e8ad0dc MK |
102 | /* |
103 | * size of the input-buffer IN BYTES | |
104 | */ | |
105 | #define SIZEINBUF 512 | |
f47c697d | 106 | |
4e8ad0dc MK |
107 | /* |
108 | * 16 bytes | |
109 | */ | |
110 | #define SIZEINSNBUF 512 | |
f47c697d | 111 | |
4e8ad0dc MK |
112 | /* |
113 | * size of the buffer for the dux commands in bytes | |
114 | */ | |
5659e24a | 115 | #define SIZEOFDUXBUF 256 |
f47c697d | 116 | |
4e8ad0dc MK |
117 | /* |
118 | * number of in-URBs which receive the data: min=5 | |
119 | */ | |
120 | #define NUMOFINBUFFERSHIGH 10 | |
f47c697d | 121 | |
4e8ad0dc MK |
122 | /* |
123 | * min delay steps for more than one channel | |
124 | * basically when the mux gives up ;-) | |
125 | * | |
126 | * steps at 30MHz in the FX2 | |
127 | */ | |
128 | #define MIN_SAMPLING_PERIOD 9 | |
f47c697d | 129 | |
4e8ad0dc MK |
130 | /* |
131 | * max number of 1/30MHz delay steps | |
132 | */ | |
133 | #define MAX_SAMPLING_PERIOD 500 | |
f47c697d | 134 | |
4e8ad0dc MK |
135 | /* |
136 | * number of received packets to ignore before we start handing data | |
137 | * over to comedi, it's quad buffering and we have to ignore 4 packets | |
138 | */ | |
139 | #define PACKETS_TO_IGNORE 4 | |
f47c697d | 140 | |
4e8ad0dc MK |
141 | /* |
142 | * comedi constants | |
143 | */ | |
9ced1de6 | 144 | static const struct comedi_lrange range_usbduxfast_ai_range = { |
67b3b78f HS |
145 | 2, { |
146 | BIP_RANGE(0.75), | |
147 | BIP_RANGE(0.5) | |
148 | } | |
f47c697d BP |
149 | }; |
150 | ||
151 | /* | |
152 | * private structure of one subdevice | |
4e8ad0dc MK |
153 | * |
154 | * this is the structure which holds all the data of this driver | |
155 | * one sub device just now: A/D | |
f47c697d | 156 | */ |
7aa41c3c | 157 | struct usbduxfast_private { |
da58c263 | 158 | struct urb *urb; /* BULK-transfer handling: urb */ |
26961546 HS |
159 | u8 *duxbuf; |
160 | s8 *inbuf; | |
4e8ad0dc | 161 | short int ai_cmd_running; /* asynchronous command is running */ |
24b83783 | 162 | int ignore; /* counter which ignores the first buffers */ |
27a90695 | 163 | struct mutex mut; |
4e8ad0dc | 164 | }; |
f47c697d | 165 | |
4e8ad0dc MK |
166 | /* |
167 | * bulk transfers to usbduxfast | |
168 | */ | |
f47c697d BP |
169 | #define SENDADCOMMANDS 0 |
170 | #define SENDINITEP6 1 | |
171 | ||
665ff8d3 | 172 | static int usbduxfast_send_cmd(struct comedi_device *dev, int cmd_type) |
f47c697d | 173 | { |
0a92de24 | 174 | struct usb_device *usb = comedi_to_usb_dev(dev); |
da63c39c | 175 | struct usbduxfast_private *devpriv = dev->private; |
665ff8d3 HS |
176 | int nsent; |
177 | int ret; | |
0a3b8b64 | 178 | |
5659e24a | 179 | devpriv->duxbuf[0] = cmd_type; |
0a3b8b64 | 180 | |
665ff8d3 | 181 | ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, CHANNELLISTEP), |
5659e24a HS |
182 | devpriv->duxbuf, SIZEOFDUXBUF, |
183 | &nsent, 10000); | |
665ff8d3 | 184 | if (ret < 0) |
106af997 | 185 | dev_err(dev->class_dev, |
5659e24a | 186 | "could not transmit command to the usb-device, err=%d\n", |
665ff8d3 HS |
187 | ret); |
188 | return ret; | |
f47c697d BP |
189 | } |
190 | ||
17fdeba0 | 191 | static void usbduxfast_cmd_data(struct comedi_device *dev, int index, |
26961546 | 192 | u8 len, u8 op, u8 out, u8 log) |
17fdeba0 HS |
193 | { |
194 | struct usbduxfast_private *devpriv = dev->private; | |
195 | ||
196 | /* Set the GPIF bytes, the first byte is the command byte */ | |
197 | devpriv->duxbuf[1 + 0x00 + index] = len; | |
198 | devpriv->duxbuf[1 + 0x08 + index] = op; | |
199 | devpriv->duxbuf[1 + 0x10 + index] = out; | |
200 | devpriv->duxbuf[1 + 0x18 + index] = log; | |
201 | } | |
202 | ||
32fa46b9 | 203 | static int usbduxfast_ai_stop(struct comedi_device *dev, int do_unlink) |
f47c697d | 204 | { |
da63c39c | 205 | struct usbduxfast_private *devpriv = dev->private; |
f47c697d | 206 | |
32fa46b9 | 207 | /* stop aquistion */ |
7aa41c3c | 208 | devpriv->ai_cmd_running = 0; |
f47c697d | 209 | |
32fa46b9 HS |
210 | if (do_unlink && devpriv->urb) { |
211 | /* kill the running transfer */ | |
212 | usb_kill_urb(devpriv->urb); | |
213 | } | |
f47c697d | 214 | |
32fa46b9 | 215 | return 0; |
f47c697d BP |
216 | } |
217 | ||
0a85b6f0 MT |
218 | static int usbduxfast_ai_cancel(struct comedi_device *dev, |
219 | struct comedi_subdevice *s) | |
f47c697d | 220 | { |
7aa41c3c | 221 | struct usbduxfast_private *devpriv = dev->private; |
4e8ad0dc | 222 | int ret; |
f47c697d | 223 | |
27a90695 | 224 | mutex_lock(&devpriv->mut); |
da63c39c | 225 | ret = usbduxfast_ai_stop(dev, 1); |
27a90695 | 226 | mutex_unlock(&devpriv->mut); |
f47c697d | 227 | |
4e8ad0dc | 228 | return ret; |
f47c697d BP |
229 | } |
230 | ||
7c88f9f4 HS |
231 | static void usbduxfast_ai_handle_urb(struct comedi_device *dev, |
232 | struct comedi_subdevice *s, | |
233 | struct urb *urb) | |
234 | { | |
235 | struct usbduxfast_private *devpriv = dev->private; | |
236 | struct comedi_async *async = s->async; | |
237 | struct comedi_cmd *cmd = &async->cmd; | |
238 | int ret; | |
239 | ||
240 | if (devpriv->ignore) { | |
241 | devpriv->ignore--; | |
242 | } else { | |
c39e050d | 243 | unsigned int nsamples; |
7c88f9f4 | 244 | |
c39e050d | 245 | nsamples = comedi_bytes_to_samples(s, urb->actual_length); |
979f9996 | 246 | nsamples = comedi_nsamples_left(s, nsamples); |
f81ac41b | 247 | comedi_buf_write_samples(s, urb->transfer_buffer, nsamples); |
979f9996 HS |
248 | |
249 | if (cmd->stop_src == TRIG_COUNT && | |
250 | async->scans_done >= cmd->stop_arg) | |
251 | async->events |= COMEDI_CB_EOA; | |
7c88f9f4 HS |
252 | } |
253 | ||
254 | /* if command is still running, resubmit urb for BULK transfer */ | |
255 | if (!(async->events & COMEDI_CB_CANCEL_MASK)) { | |
256 | urb->dev = comedi_to_usb_dev(dev); | |
257 | urb->status = 0; | |
258 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
259 | if (ret < 0) { | |
260 | dev_err(dev->class_dev, "urb resubm failed: %d", ret); | |
261 | async->events |= COMEDI_CB_ERROR; | |
262 | } | |
263 | } | |
264 | } | |
265 | ||
f8eb27e0 | 266 | static void usbduxfast_ai_interrupt(struct urb *urb) |
f47c697d | 267 | { |
f8eb27e0 HS |
268 | struct comedi_device *dev = urb->context; |
269 | struct comedi_subdevice *s = dev->read_subdev; | |
270 | struct comedi_async *async = s->async; | |
271 | struct usbduxfast_private *devpriv = dev->private; | |
7c88f9f4 HS |
272 | |
273 | /* exit if not running a command, do not resubmit urb */ | |
274 | if (!devpriv->ai_cmd_running) | |
f47c697d | 275 | return; |
f47c697d | 276 | |
f47c697d BP |
277 | switch (urb->status) { |
278 | case 0: | |
7c88f9f4 | 279 | usbduxfast_ai_handle_urb(dev, s, urb); |
f47c697d BP |
280 | break; |
281 | ||
f47c697d BP |
282 | case -ECONNRESET: |
283 | case -ENOENT: | |
284 | case -ESHUTDOWN: | |
285 | case -ECONNABORTED: | |
7c88f9f4 | 286 | /* after an unlink command, unplug, ... etc */ |
f8eb27e0 | 287 | async->events |= COMEDI_CB_ERROR; |
7c88f9f4 | 288 | break; |
f47c697d BP |
289 | |
290 | default: | |
7c88f9f4 | 291 | /* a real error */ |
42f4acdf HS |
292 | dev_err(dev->class_dev, |
293 | "non-zero urb status received in ai intr context: %d\n", | |
294 | urb->status); | |
f8eb27e0 | 295 | async->events |= COMEDI_CB_ERROR; |
7c88f9f4 | 296 | break; |
f47c697d BP |
297 | } |
298 | ||
4e8ad0dc | 299 | /* |
7c88f9f4 HS |
300 | * comedi_handle_events() cannot be used in this driver. The (*cancel) |
301 | * operation would unlink the urb. | |
4e8ad0dc | 302 | */ |
7c88f9f4 | 303 | if (async->events & COMEDI_CB_CANCEL_MASK) |
da63c39c | 304 | usbduxfast_ai_stop(dev, 0); |
7c88f9f4 HS |
305 | |
306 | comedi_event(dev, s); | |
f47c697d BP |
307 | } |
308 | ||
ebe9f1cf | 309 | static int usbduxfast_submit_urb(struct comedi_device *dev) |
f47c697d | 310 | { |
0a92de24 | 311 | struct usb_device *usb = comedi_to_usb_dev(dev); |
da63c39c | 312 | struct usbduxfast_private *devpriv = dev->private; |
4e8ad0dc | 313 | int ret; |
f47c697d | 314 | |
da58c263 | 315 | usb_fill_bulk_urb(devpriv->urb, usb, usb_rcvbulkpipe(usb, BULKINEP), |
ef8e0840 | 316 | devpriv->inbuf, SIZEINBUF, |
da63c39c | 317 | usbduxfast_ai_interrupt, dev); |
f47c697d | 318 | |
da58c263 | 319 | ret = usb_submit_urb(devpriv->urb, GFP_ATOMIC); |
4e8ad0dc | 320 | if (ret) { |
106af997 | 321 | dev_err(dev->class_dev, "usb_submit_urb error %d\n", ret); |
4e8ad0dc | 322 | return ret; |
f47c697d BP |
323 | } |
324 | return 0; | |
325 | } | |
326 | ||
99555fc2 HS |
327 | static int usbduxfast_ai_check_chanlist(struct comedi_device *dev, |
328 | struct comedi_subdevice *s, | |
329 | struct comedi_cmd *cmd) | |
330 | { | |
331 | unsigned int gain0 = CR_RANGE(cmd->chanlist[0]); | |
332 | int i; | |
333 | ||
db1876ff HS |
334 | if (cmd->chanlist_len > 3 && cmd->chanlist_len != 16) { |
335 | dev_err(dev->class_dev, "unsupported combination of channels\n"); | |
336 | return -EINVAL; | |
337 | } | |
338 | ||
99555fc2 HS |
339 | for (i = 0; i < cmd->chanlist_len; ++i) { |
340 | unsigned int chan = CR_CHAN(cmd->chanlist[i]); | |
341 | unsigned int gain = CR_RANGE(cmd->chanlist[i]); | |
342 | ||
343 | if (chan != i) { | |
344 | dev_err(dev->class_dev, | |
345 | "channels are not consecutive\n"); | |
346 | return -EINVAL; | |
347 | } | |
348 | if (gain != gain0 && cmd->chanlist_len > 3) { | |
349 | dev_err(dev->class_dev, | |
350 | "gain must be the same for all channels\n"); | |
351 | return -EINVAL; | |
352 | } | |
353 | } | |
354 | return 0; | |
355 | } | |
356 | ||
71b5f4f1 | 357 | static int usbduxfast_ai_cmdtest(struct comedi_device *dev, |
0a85b6f0 MT |
358 | struct comedi_subdevice *s, |
359 | struct comedi_cmd *cmd) | |
f47c697d | 360 | { |
27020ffe | 361 | int err = 0; |
c748debc HS |
362 | unsigned int steps; |
363 | unsigned int arg; | |
4e8ad0dc | 364 | |
27020ffe | 365 | /* Step 1 : check if triggers are trivially valid */ |
f47c697d | 366 | |
f53398eb | 367 | err |= comedi_check_trigger_src(&cmd->start_src, |
27020ffe | 368 | TRIG_NOW | TRIG_EXT | TRIG_INT); |
fe0d96bf HS |
369 | err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW); |
370 | err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER); | |
f53398eb IA |
371 | err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); |
372 | err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); | |
f47c697d BP |
373 | |
374 | if (err) | |
375 | return 1; | |
376 | ||
27020ffe | 377 | /* Step 2a : make sure trigger sources are unique */ |
f47c697d | 378 | |
f53398eb | 379 | err |= comedi_check_trigger_is_unique(cmd->start_src); |
f53398eb | 380 | err |= comedi_check_trigger_is_unique(cmd->stop_src); |
27020ffe HS |
381 | |
382 | /* Step 2b : and mutually compatible */ | |
f47c697d | 383 | |
f47c697d BP |
384 | if (err) |
385 | return 2; | |
386 | ||
9309c477 | 387 | /* Step 3: check if arguments are trivially valid */ |
f47c697d | 388 | |
f53398eb | 389 | err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); |
f47c697d | 390 | |
4e8ad0dc | 391 | if (!cmd->chanlist_len) |
9309c477 | 392 | err |= -EINVAL; |
4e8ad0dc | 393 | |
d636f87d HS |
394 | /* external start trigger is only valid for 1 or 16 channels */ |
395 | if (cmd->start_src == TRIG_EXT && | |
396 | cmd->chanlist_len != 1 && cmd->chanlist_len != 16) | |
397 | err |= -EINVAL; | |
398 | ||
f53398eb IA |
399 | err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, |
400 | cmd->chanlist_len); | |
f47c697d | 401 | |
c748debc HS |
402 | /* |
403 | * Validate the conversion timing: | |
404 | * for 1 channel the timing in 30MHz "steps" is: | |
405 | * steps <= MAX_SAMPLING_PERIOD | |
406 | * for all other chanlist_len it is: | |
407 | * MIN_SAMPLING_PERIOD <= steps <= MAX_SAMPLING_PERIOD | |
408 | */ | |
409 | steps = (cmd->convert_arg * 30) / 1000; | |
410 | if (cmd->chanlist_len != 1) | |
411 | err |= comedi_check_trigger_arg_min(&steps, | |
412 | MIN_SAMPLING_PERIOD); | |
413 | err |= comedi_check_trigger_arg_max(&steps, MAX_SAMPLING_PERIOD); | |
414 | arg = (steps * 1000) / 30; | |
415 | err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg); | |
f47c697d | 416 | |
fe0d96bf | 417 | if (cmd->stop_src == TRIG_COUNT) |
f53398eb | 418 | err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1); |
fe0d96bf | 419 | else /* TRIG_NONE */ |
f53398eb | 420 | err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0); |
f47c697d BP |
421 | |
422 | if (err) | |
423 | return 3; | |
424 | ||
99555fc2 HS |
425 | /* Step 4: fix up any arguments */ |
426 | ||
427 | /* Step 5: check channel list if it exists */ | |
428 | if (cmd->chanlist && cmd->chanlist_len > 0) | |
429 | err |= usbduxfast_ai_check_chanlist(dev, s, cmd); | |
430 | if (err) | |
431 | return 5; | |
f47c697d BP |
432 | |
433 | return 0; | |
f47c697d BP |
434 | } |
435 | ||
71b5f4f1 | 436 | static int usbduxfast_ai_inttrig(struct comedi_device *dev, |
0a85b6f0 | 437 | struct comedi_subdevice *s, |
95194590 | 438 | unsigned int trig_num) |
f47c697d | 439 | { |
7aa41c3c | 440 | struct usbduxfast_private *devpriv = dev->private; |
95194590 | 441 | struct comedi_cmd *cmd = &s->async->cmd; |
f47c697d | 442 | int ret; |
4e8ad0dc | 443 | |
95194590 HS |
444 | if (trig_num != cmd->start_arg) |
445 | return -EINVAL; | |
446 | ||
27a90695 | 447 | mutex_lock(&devpriv->mut); |
f47c697d | 448 | |
7aa41c3c HS |
449 | if (!devpriv->ai_cmd_running) { |
450 | devpriv->ai_cmd_running = 1; | |
ebe9f1cf | 451 | ret = usbduxfast_submit_urb(dev); |
f47c697d | 452 | if (ret < 0) { |
106af997 | 453 | dev_err(dev->class_dev, "urbSubmit: err=%d\n", ret); |
7aa41c3c | 454 | devpriv->ai_cmd_running = 0; |
27a90695 | 455 | mutex_unlock(&devpriv->mut); |
f47c697d BP |
456 | return ret; |
457 | } | |
458 | s->async->inttrig = NULL; | |
459 | } else { | |
106af997 | 460 | dev_err(dev->class_dev, "ai is already running\n"); |
f47c697d | 461 | } |
27a90695 | 462 | mutex_unlock(&devpriv->mut); |
f47c697d BP |
463 | return 1; |
464 | } | |
465 | ||
0a85b6f0 MT |
466 | static int usbduxfast_ai_cmd(struct comedi_device *dev, |
467 | struct comedi_subdevice *s) | |
f47c697d | 468 | { |
7aa41c3c | 469 | struct usbduxfast_private *devpriv = dev->private; |
ea6d0d4c | 470 | struct comedi_cmd *cmd = &s->async->cmd; |
99555fc2 HS |
471 | unsigned int rngmask = 0xff; |
472 | int j, ret; | |
f47c697d BP |
473 | long steps, steps_tmp; |
474 | ||
27a90695 | 475 | mutex_lock(&devpriv->mut); |
7aa41c3c | 476 | if (devpriv->ai_cmd_running) { |
7b0fc5ba HS |
477 | ret = -EBUSY; |
478 | goto cmd_exit; | |
f47c697d | 479 | } |
f47c697d | 480 | |
4e8ad0dc MK |
481 | /* |
482 | * ignore the first buffers from the device if there | |
483 | * is an error condition | |
484 | */ | |
7aa41c3c | 485 | devpriv->ignore = PACKETS_TO_IGNORE; |
f47c697d | 486 | |
fe0d96bf | 487 | steps = (cmd->convert_arg * 30) / 1000; |
4e8ad0dc | 488 | |
f47c697d | 489 | switch (cmd->chanlist_len) { |
f47c697d | 490 | case 1: |
4e8ad0dc MK |
491 | /* |
492 | * one channel | |
493 | */ | |
494 | ||
f47c697d BP |
495 | if (CR_RANGE(cmd->chanlist[0]) > 0) |
496 | rngmask = 0xff - 0x04; | |
497 | else | |
498 | rngmask = 0xff; | |
499 | ||
4e8ad0dc MK |
500 | /* |
501 | * for external trigger: looping in this state until | |
502 | * the RDY0 pin becomes zero | |
503 | */ | |
504 | ||
505 | /* we loop here until ready has been set */ | |
506 | if (cmd->start_src == TRIG_EXT) { | |
507 | /* branch back to state 0 */ | |
4e8ad0dc | 508 | /* deceision state w/o data */ |
4e8ad0dc | 509 | /* RDY0 = 0 */ |
17fdeba0 | 510 | usbduxfast_cmd_data(dev, 0, 0x01, 0x01, rngmask, 0x00); |
4e8ad0dc | 511 | } else { /* we just proceed to state 1 */ |
17fdeba0 | 512 | usbduxfast_cmd_data(dev, 0, 0x01, 0x00, rngmask, 0x00); |
f47c697d BP |
513 | } |
514 | ||
515 | if (steps < MIN_SAMPLING_PERIOD) { | |
4e8ad0dc | 516 | /* for fast single channel aqu without mux */ |
f47c697d | 517 | if (steps <= 1) { |
4e8ad0dc MK |
518 | /* |
519 | * we just stay here at state 1 and rexecute | |
520 | * the same state this gives us 30MHz sampling | |
521 | * rate | |
522 | */ | |
523 | ||
524 | /* branch back to state 1 */ | |
4e8ad0dc | 525 | /* deceision state with data */ |
4e8ad0dc | 526 | /* doesn't matter */ |
17fdeba0 HS |
527 | usbduxfast_cmd_data(dev, 1, |
528 | 0x89, 0x03, rngmask, 0xff); | |
f47c697d | 529 | } else { |
4e8ad0dc MK |
530 | /* |
531 | * we loop through two states: data and delay | |
532 | * max rate is 15MHz | |
533 | */ | |
4e8ad0dc | 534 | /* data */ |
4e8ad0dc | 535 | /* doesn't matter */ |
17fdeba0 HS |
536 | usbduxfast_cmd_data(dev, 1, steps - 1, |
537 | 0x02, rngmask, 0x00); | |
538 | ||
4e8ad0dc | 539 | /* branch back to state 1 */ |
4e8ad0dc | 540 | /* deceision state w/o data */ |
4e8ad0dc | 541 | /* doesn't matter */ |
17fdeba0 HS |
542 | usbduxfast_cmd_data(dev, 2, |
543 | 0x09, 0x01, rngmask, 0xff); | |
f47c697d BP |
544 | } |
545 | } else { | |
4e8ad0dc MK |
546 | /* |
547 | * we loop through 3 states: 2x delay and 1x data | |
548 | * this gives a min sampling rate of 60kHz | |
549 | */ | |
f47c697d | 550 | |
4e8ad0dc | 551 | /* we have 1 state with duration 1 */ |
f47c697d BP |
552 | steps = steps - 1; |
553 | ||
4e8ad0dc | 554 | /* do the first part of the delay */ |
17fdeba0 HS |
555 | usbduxfast_cmd_data(dev, 1, |
556 | steps / 2, 0x00, rngmask, 0x00); | |
4e8ad0dc MK |
557 | |
558 | /* and the second part */ | |
17fdeba0 HS |
559 | usbduxfast_cmd_data(dev, 2, steps - steps / 2, |
560 | 0x00, rngmask, 0x00); | |
4e8ad0dc MK |
561 | |
562 | /* get the data and branch back */ | |
563 | ||
564 | /* branch back to state 1 */ | |
4e8ad0dc | 565 | /* deceision state w data */ |
4e8ad0dc | 566 | /* doesn't matter */ |
17fdeba0 HS |
567 | usbduxfast_cmd_data(dev, 3, |
568 | 0x09, 0x03, rngmask, 0xff); | |
f47c697d BP |
569 | } |
570 | break; | |
571 | ||
572 | case 2: | |
4e8ad0dc MK |
573 | /* |
574 | * two channels | |
575 | * commit data to the FIFO | |
576 | */ | |
577 | ||
f47c697d BP |
578 | if (CR_RANGE(cmd->chanlist[0]) > 0) |
579 | rngmask = 0xff - 0x04; | |
580 | else | |
581 | rngmask = 0xff; | |
f47c697d | 582 | |
4e8ad0dc | 583 | /* data */ |
17fdeba0 | 584 | usbduxfast_cmd_data(dev, 0, 0x01, 0x02, rngmask, 0x00); |
4e8ad0dc MK |
585 | |
586 | /* we have 1 state with duration 1: state 0 */ | |
f47c697d BP |
587 | steps_tmp = steps - 1; |
588 | ||
589 | if (CR_RANGE(cmd->chanlist[1]) > 0) | |
590 | rngmask = 0xff - 0x04; | |
591 | else | |
592 | rngmask = 0xff; | |
4e8ad0dc MK |
593 | |
594 | /* do the first part of the delay */ | |
4e8ad0dc | 595 | /* count */ |
17fdeba0 HS |
596 | usbduxfast_cmd_data(dev, 1, steps_tmp / 2, |
597 | 0x00, 0xfe & rngmask, 0x00); | |
4e8ad0dc MK |
598 | |
599 | /* and the second part */ | |
17fdeba0 HS |
600 | usbduxfast_cmd_data(dev, 2, steps_tmp - steps_tmp / 2, |
601 | 0x00, rngmask, 0x00); | |
4e8ad0dc | 602 | |
4e8ad0dc | 603 | /* data */ |
17fdeba0 | 604 | usbduxfast_cmd_data(dev, 3, 0x01, 0x02, rngmask, 0x00); |
4e8ad0dc MK |
605 | |
606 | /* | |
607 | * we have 2 states with duration 1: step 6 and | |
608 | * the IDLE state | |
609 | */ | |
f47c697d BP |
610 | steps_tmp = steps - 2; |
611 | ||
612 | if (CR_RANGE(cmd->chanlist[0]) > 0) | |
613 | rngmask = 0xff - 0x04; | |
614 | else | |
615 | rngmask = 0xff; | |
4e8ad0dc MK |
616 | |
617 | /* do the first part of the delay */ | |
4e8ad0dc | 618 | /* reset */ |
17fdeba0 HS |
619 | usbduxfast_cmd_data(dev, 4, steps_tmp / 2, |
620 | 0x00, (0xff - 0x02) & rngmask, 0x00); | |
4e8ad0dc MK |
621 | |
622 | /* and the second part */ | |
17fdeba0 HS |
623 | usbduxfast_cmd_data(dev, 5, steps_tmp - steps_tmp / 2, |
624 | 0x00, rngmask, 0x00); | |
625 | ||
626 | usbduxfast_cmd_data(dev, 6, 0x01, 0x00, rngmask, 0x00); | |
f47c697d BP |
627 | break; |
628 | ||
629 | case 3: | |
4e8ad0dc MK |
630 | /* |
631 | * three channels | |
632 | */ | |
f47c697d | 633 | for (j = 0; j < 1; j++) { |
17fdeba0 HS |
634 | int index = j * 2; |
635 | ||
f47c697d BP |
636 | if (CR_RANGE(cmd->chanlist[j]) > 0) |
637 | rngmask = 0xff - 0x04; | |
638 | else | |
639 | rngmask = 0xff; | |
4e8ad0dc MK |
640 | /* |
641 | * commit data to the FIFO and do the first part | |
642 | * of the delay | |
643 | */ | |
4e8ad0dc | 644 | /* data */ |
4e8ad0dc | 645 | /* no change */ |
17fdeba0 HS |
646 | usbduxfast_cmd_data(dev, index, steps / 2, |
647 | 0x02, rngmask, 0x00); | |
f47c697d BP |
648 | |
649 | if (CR_RANGE(cmd->chanlist[j + 1]) > 0) | |
650 | rngmask = 0xff - 0x04; | |
651 | else | |
652 | rngmask = 0xff; | |
4e8ad0dc MK |
653 | |
654 | /* do the second part of the delay */ | |
4e8ad0dc | 655 | /* no data */ |
4e8ad0dc | 656 | /* count */ |
17fdeba0 HS |
657 | usbduxfast_cmd_data(dev, index + 1, steps - steps / 2, |
658 | 0x00, 0xfe & rngmask, 0x00); | |
f47c697d BP |
659 | } |
660 | ||
4e8ad0dc | 661 | /* 2 steps with duration 1: the idele step and step 6: */ |
f47c697d | 662 | steps_tmp = steps - 2; |
4e8ad0dc MK |
663 | |
664 | /* commit data to the FIFO and do the first part of the delay */ | |
4e8ad0dc | 665 | /* data */ |
17fdeba0 HS |
666 | usbduxfast_cmd_data(dev, 4, steps_tmp / 2, |
667 | 0x02, rngmask, 0x00); | |
f47c697d BP |
668 | |
669 | if (CR_RANGE(cmd->chanlist[0]) > 0) | |
670 | rngmask = 0xff - 0x04; | |
671 | else | |
672 | rngmask = 0xff; | |
4e8ad0dc MK |
673 | |
674 | /* do the second part of the delay */ | |
4e8ad0dc | 675 | /* no data */ |
4e8ad0dc | 676 | /* reset */ |
17fdeba0 HS |
677 | usbduxfast_cmd_data(dev, 5, steps_tmp - steps_tmp / 2, |
678 | 0x00, (0xff - 0x02) & rngmask, 0x00); | |
4e8ad0dc | 679 | |
17fdeba0 | 680 | usbduxfast_cmd_data(dev, 6, 0x01, 0x00, rngmask, 0x00); |
99284f25 | 681 | break; |
f47c697d BP |
682 | |
683 | case 16: | |
684 | if (CR_RANGE(cmd->chanlist[0]) > 0) | |
685 | rngmask = 0xff - 0x04; | |
686 | else | |
687 | rngmask = 0xff; | |
4e8ad0dc MK |
688 | |
689 | if (cmd->start_src == TRIG_EXT) { | |
690 | /* | |
691 | * we loop here until ready has been set | |
692 | */ | |
693 | ||
694 | /* branch back to state 0 */ | |
4e8ad0dc | 695 | /* deceision state w/o data */ |
4e8ad0dc | 696 | /* reset */ |
4e8ad0dc | 697 | /* RDY0 = 0 */ |
17fdeba0 HS |
698 | usbduxfast_cmd_data(dev, 0, 0x01, 0x01, |
699 | (0xff - 0x02) & rngmask, 0x00); | |
4e8ad0dc MK |
700 | } else { |
701 | /* | |
702 | * we just proceed to state 1 | |
703 | */ | |
704 | ||
705 | /* 30us reset pulse */ | |
4e8ad0dc | 706 | /* reset */ |
17fdeba0 HS |
707 | usbduxfast_cmd_data(dev, 0, 0xff, 0x00, |
708 | (0xff - 0x02) & rngmask, 0x00); | |
f47c697d BP |
709 | } |
710 | ||
4e8ad0dc | 711 | /* commit data to the FIFO */ |
4e8ad0dc | 712 | /* data */ |
17fdeba0 | 713 | usbduxfast_cmd_data(dev, 1, 0x01, 0x02, rngmask, 0x00); |
f47c697d | 714 | |
4e8ad0dc | 715 | /* we have 2 states with duration 1 */ |
f47c697d BP |
716 | steps = steps - 2; |
717 | ||
4e8ad0dc | 718 | /* do the first part of the delay */ |
17fdeba0 HS |
719 | usbduxfast_cmd_data(dev, 2, steps / 2, |
720 | 0x00, 0xfe & rngmask, 0x00); | |
4e8ad0dc MK |
721 | |
722 | /* and the second part */ | |
17fdeba0 HS |
723 | usbduxfast_cmd_data(dev, 3, steps - steps / 2, |
724 | 0x00, rngmask, 0x00); | |
4e8ad0dc MK |
725 | |
726 | /* branch back to state 1 */ | |
4e8ad0dc | 727 | /* deceision state w/o data */ |
4e8ad0dc | 728 | /* doesn't matter */ |
17fdeba0 | 729 | usbduxfast_cmd_data(dev, 4, 0x09, 0x01, rngmask, 0xff); |
f47c697d BP |
730 | |
731 | break; | |
f47c697d BP |
732 | } |
733 | ||
4e8ad0dc | 734 | /* 0 means that the AD commands are sent */ |
7b0fc5ba HS |
735 | ret = usbduxfast_send_cmd(dev, SENDADCOMMANDS); |
736 | if (ret < 0) | |
737 | goto cmd_exit; | |
71cf2b4a | 738 | |
f47c697d | 739 | if ((cmd->start_src == TRIG_NOW) || (cmd->start_src == TRIG_EXT)) { |
4e8ad0dc | 740 | /* enable this acquisition operation */ |
7aa41c3c | 741 | devpriv->ai_cmd_running = 1; |
ebe9f1cf | 742 | ret = usbduxfast_submit_urb(dev); |
f47c697d | 743 | if (ret < 0) { |
7aa41c3c | 744 | devpriv->ai_cmd_running = 0; |
4e8ad0dc | 745 | /* fixme: unlink here?? */ |
7b0fc5ba | 746 | goto cmd_exit; |
f47c697d BP |
747 | } |
748 | s->async->inttrig = NULL; | |
95194590 | 749 | } else { /* TRIG_INT */ |
f47c697d BP |
750 | s->async->inttrig = usbduxfast_ai_inttrig; |
751 | } | |
7b0fc5ba HS |
752 | |
753 | cmd_exit: | |
27a90695 | 754 | mutex_unlock(&devpriv->mut); |
f47c697d | 755 | |
7b0fc5ba | 756 | return ret; |
f47c697d BP |
757 | } |
758 | ||
4e8ad0dc MK |
759 | /* |
760 | * Mode 0 is used to get a single conversion on demand. | |
761 | */ | |
71b5f4f1 | 762 | static int usbduxfast_ai_insn_read(struct comedi_device *dev, |
0a85b6f0 | 763 | struct comedi_subdevice *s, |
dabf2aa3 HS |
764 | struct comedi_insn *insn, |
765 | unsigned int *data) | |
f47c697d | 766 | { |
0a92de24 | 767 | struct usb_device *usb = comedi_to_usb_dev(dev); |
7aa41c3c | 768 | struct usbduxfast_private *devpriv = dev->private; |
dabf2aa3 HS |
769 | unsigned int chan = CR_CHAN(insn->chanspec); |
770 | unsigned int range = CR_RANGE(insn->chanspec); | |
26961546 | 771 | u8 rngmask = range ? (0xff - 0x04) : 0xff; |
f47c697d | 772 | int i, j, n, actual_length; |
dabf2aa3 | 773 | int ret; |
ba6205d6 | 774 | |
27a90695 | 775 | mutex_lock(&devpriv->mut); |
dabf2aa3 | 776 | |
7aa41c3c | 777 | if (devpriv->ai_cmd_running) { |
0a00ab99 | 778 | dev_err(dev->class_dev, |
106af997 | 779 | "ai_insn_read not possible, async cmd is running\n"); |
27a90695 | 780 | mutex_unlock(&devpriv->mut); |
f47c697d BP |
781 | return -EBUSY; |
782 | } | |
f47c697d | 783 | |
dabf2aa3 | 784 | /* set command for the first channel */ |
4e8ad0dc MK |
785 | |
786 | /* commit data to the FIFO */ | |
4e8ad0dc | 787 | /* data */ |
17fdeba0 | 788 | usbduxfast_cmd_data(dev, 0, 0x01, 0x02, rngmask, 0x00); |
4e8ad0dc MK |
789 | |
790 | /* do the first part of the delay */ | |
17fdeba0 HS |
791 | usbduxfast_cmd_data(dev, 1, 0x0c, 0x00, 0xfe & rngmask, 0x00); |
792 | usbduxfast_cmd_data(dev, 2, 0x01, 0x00, 0xfe & rngmask, 0x00); | |
793 | usbduxfast_cmd_data(dev, 3, 0x01, 0x00, 0xfe & rngmask, 0x00); | |
794 | usbduxfast_cmd_data(dev, 4, 0x01, 0x00, 0xfe & rngmask, 0x00); | |
4e8ad0dc MK |
795 | |
796 | /* second part */ | |
17fdeba0 HS |
797 | usbduxfast_cmd_data(dev, 5, 0x0c, 0x00, rngmask, 0x00); |
798 | usbduxfast_cmd_data(dev, 6, 0x01, 0x00, rngmask, 0x00); | |
f47c697d | 799 | |
dabf2aa3 HS |
800 | ret = usbduxfast_send_cmd(dev, SENDADCOMMANDS); |
801 | if (ret < 0) { | |
27a90695 | 802 | mutex_unlock(&devpriv->mut); |
dabf2aa3 | 803 | return ret; |
f47c697d | 804 | } |
ba6205d6 | 805 | |
f47c697d | 806 | for (i = 0; i < PACKETS_TO_IGNORE; i++) { |
dabf2aa3 | 807 | ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, BULKINEP), |
ef8e0840 | 808 | devpriv->inbuf, SIZEINBUF, |
88676359 | 809 | &actual_length, 10000); |
dabf2aa3 | 810 | if (ret < 0) { |
106af997 | 811 | dev_err(dev->class_dev, "insn timeout, no data\n"); |
27a90695 | 812 | mutex_unlock(&devpriv->mut); |
dabf2aa3 | 813 | return ret; |
f47c697d BP |
814 | } |
815 | } | |
dabf2aa3 | 816 | |
f47c697d | 817 | for (i = 0; i < insn->n;) { |
dabf2aa3 | 818 | ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, BULKINEP), |
ef8e0840 | 819 | devpriv->inbuf, SIZEINBUF, |
88676359 | 820 | &actual_length, 10000); |
dabf2aa3 HS |
821 | if (ret < 0) { |
822 | dev_err(dev->class_dev, "insn data error: %d\n", ret); | |
27a90695 | 823 | mutex_unlock(&devpriv->mut); |
dabf2aa3 | 824 | return ret; |
f47c697d | 825 | } |
26961546 | 826 | n = actual_length / sizeof(u16); |
f47c697d | 827 | if ((n % 16) != 0) { |
106af997 | 828 | dev_err(dev->class_dev, "insn data packet corrupted\n"); |
27a90695 | 829 | mutex_unlock(&devpriv->mut); |
f47c697d BP |
830 | return -EINVAL; |
831 | } | |
832 | for (j = chan; (j < n) && (i < insn->n); j = j + 16) { | |
26961546 | 833 | data[i] = ((u16 *)(devpriv->inbuf))[j]; |
f47c697d BP |
834 | i++; |
835 | } | |
836 | } | |
dabf2aa3 | 837 | |
27a90695 | 838 | mutex_unlock(&devpriv->mut); |
dabf2aa3 HS |
839 | |
840 | return insn->n; | |
f47c697d BP |
841 | } |
842 | ||
1b4997e6 | 843 | static int usbduxfast_upload_firmware(struct comedi_device *dev, |
f9eb8a3b HS |
844 | const u8 *data, size_t size, |
845 | unsigned long context) | |
f47c697d | 846 | { |
0a92de24 | 847 | struct usb_device *usb = comedi_to_usb_dev(dev); |
26961546 | 848 | u8 *buf; |
fbe38a8b | 849 | unsigned char *tmp; |
106af997 | 850 | int ret; |
f47c697d | 851 | |
f9eb8a3b | 852 | if (!data) |
81874ff7 | 853 | return 0; |
f47c697d | 854 | |
f9eb8a3b | 855 | if (size > FIRMWARE_MAX_LEN) { |
106af997 | 856 | dev_err(dev->class_dev, "firmware binary too large for FX2\n"); |
81874ff7 BP |
857 | return -ENOMEM; |
858 | } | |
4e8ad0dc | 859 | |
81874ff7 | 860 | /* we generate a local buffer for the firmware */ |
f9eb8a3b | 861 | buf = kmemdup(data, size, GFP_KERNEL); |
1b4997e6 | 862 | if (!buf) |
81874ff7 | 863 | return -ENOMEM; |
f47c697d | 864 | |
fbe38a8b HS |
865 | /* we need a malloc'ed buffer for usb_control_msg() */ |
866 | tmp = kmalloc(1, GFP_KERNEL); | |
867 | if (!tmp) { | |
868 | kfree(buf); | |
869 | return -ENOMEM; | |
870 | } | |
871 | ||
872 | /* stop the current firmware on the device */ | |
873 | *tmp = 1; /* 7f92 to one */ | |
874 | ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0), | |
875 | USBDUXFASTSUB_FIRMWARE, | |
876 | VENDOR_DIR_OUT, | |
877 | USBDUXFASTSUB_CPUCS, 0x0000, | |
878 | tmp, 1, | |
879 | EZTIMEOUT); | |
81874ff7 | 880 | if (ret < 0) { |
106af997 | 881 | dev_err(dev->class_dev, "can not stop firmware\n"); |
1b4997e6 | 882 | goto done; |
81874ff7 | 883 | } |
f47c697d | 884 | |
fbe38a8b HS |
885 | /* upload the new firmware to the device */ |
886 | ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0), | |
887 | USBDUXFASTSUB_FIRMWARE, | |
888 | VENDOR_DIR_OUT, | |
889 | 0, 0x0000, | |
f9eb8a3b | 890 | buf, size, |
fbe38a8b | 891 | EZTIMEOUT); |
81874ff7 | 892 | if (ret < 0) { |
106af997 | 893 | dev_err(dev->class_dev, "firmware upload failed\n"); |
1b4997e6 | 894 | goto done; |
f47c697d | 895 | } |
fbe38a8b HS |
896 | |
897 | /* start the new firmware on the device */ | |
898 | *tmp = 0; /* 7f92 to zero */ | |
899 | ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0), | |
900 | USBDUXFASTSUB_FIRMWARE, | |
901 | VENDOR_DIR_OUT, | |
902 | USBDUXFASTSUB_CPUCS, 0x0000, | |
903 | tmp, 1, | |
904 | EZTIMEOUT); | |
1b4997e6 | 905 | if (ret < 0) |
106af997 | 906 | dev_err(dev->class_dev, "can not start firmware\n"); |
1b4997e6 HS |
907 | |
908 | done: | |
fbe38a8b | 909 | kfree(tmp); |
1b4997e6 HS |
910 | kfree(buf); |
911 | return ret; | |
f47c697d BP |
912 | } |
913 | ||
2d719c9c HS |
914 | static int usbduxfast_auto_attach(struct comedi_device *dev, |
915 | unsigned long context_unused) | |
f47c697d | 916 | { |
2d719c9c | 917 | struct usb_interface *intf = comedi_to_usb_interface(dev); |
0a92de24 | 918 | struct usb_device *usb = comedi_to_usb_dev(dev); |
2d719c9c | 919 | struct usbduxfast_private *devpriv; |
42293db0 | 920 | struct comedi_subdevice *s; |
6742c0af | 921 | int ret; |
f47c697d | 922 | |
e4a8ecc0 | 923 | if (usb->speed != USB_SPEED_HIGH) { |
106af997 | 924 | dev_err(dev->class_dev, |
0a00ab99 | 925 | "This driver needs USB 2.0 to operate. Aborting...\n"); |
88676359 | 926 | return -ENODEV; |
f47c697d | 927 | } |
64bf88bf | 928 | |
0bdab509 | 929 | devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); |
2d719c9c HS |
930 | if (!devpriv) |
931 | return -ENOMEM; | |
f47c697d | 932 | |
27a90695 | 933 | mutex_init(&devpriv->mut); |
a35fd8a1 | 934 | usb_set_intfdata(intf, devpriv); |
f47c697d | 935 | |
5659e24a HS |
936 | devpriv->duxbuf = kmalloc(SIZEOFDUXBUF, GFP_KERNEL); |
937 | if (!devpriv->duxbuf) | |
88676359 | 938 | return -ENOMEM; |
ca88c09f | 939 | |
a4f2e0f9 | 940 | ret = usb_set_interface(usb, |
01245e7a | 941 | intf->altsetting->desc.bInterfaceNumber, 1); |
2d719c9c | 942 | if (ret < 0) { |
106af997 | 943 | dev_err(dev->class_dev, |
ca88c09f | 944 | "could not switch to alternate setting 1\n"); |
88676359 | 945 | return -ENODEV; |
f47c697d | 946 | } |
ca88c09f | 947 | |
da58c263 | 948 | devpriv->urb = usb_alloc_urb(0, GFP_KERNEL); |
1a55f38d | 949 | if (!devpriv->urb) |
88676359 | 950 | return -ENOMEM; |
ca88c09f | 951 | |
ef8e0840 HS |
952 | devpriv->inbuf = kmalloc(SIZEINBUF, GFP_KERNEL); |
953 | if (!devpriv->inbuf) | |
88676359 | 954 | return -ENOMEM; |
ca88c09f | 955 | |
f9eb8a3b HS |
956 | ret = comedi_load_firmware(dev, &usb->dev, FIRMWARE, |
957 | usbduxfast_upload_firmware, 0); | |
958 | if (ret) | |
6742c0af | 959 | return ret; |
6742c0af | 960 | |
42293db0 HS |
961 | ret = comedi_alloc_subdevices(dev, 1); |
962 | if (ret) | |
963 | return ret; | |
964 | ||
965 | /* Analog Input subdevice */ | |
966 | s = &dev->subdevices[0]; | |
967 | dev->read_subdev = s; | |
968 | s->type = COMEDI_SUBD_AI; | |
969 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ; | |
970 | s->n_chan = 16; | |
971 | s->maxdata = 0x1000; /* 12-bit + 1 overflow bit */ | |
972 | s->range_table = &range_usbduxfast_ai_range; | |
973 | s->insn_read = usbduxfast_ai_insn_read; | |
974 | s->len_chanlist = s->n_chan; | |
975 | s->do_cmdtest = usbduxfast_ai_cmdtest; | |
976 | s->do_cmd = usbduxfast_ai_cmd; | |
977 | s->cancel = usbduxfast_ai_cancel; | |
978 | ||
979 | return 0; | |
2d719c9c HS |
980 | } |
981 | ||
982 | static void usbduxfast_detach(struct comedi_device *dev) | |
983 | { | |
a71a65b1 | 984 | struct usb_interface *intf = comedi_to_usb_interface(dev); |
2d719c9c HS |
985 | struct usbduxfast_private *devpriv = dev->private; |
986 | ||
38bf7ba8 HS |
987 | if (!devpriv) |
988 | return; | |
989 | ||
27a90695 | 990 | mutex_lock(&devpriv->mut); |
38bf7ba8 | 991 | |
a71a65b1 | 992 | usb_set_intfdata(intf, NULL); |
38bf7ba8 | 993 | |
da58c263 | 994 | if (devpriv->urb) { |
38bf7ba8 | 995 | /* waits until a running transfer is over */ |
da58c263 | 996 | usb_kill_urb(devpriv->urb); |
38bf7ba8 | 997 | |
ef8e0840 | 998 | kfree(devpriv->inbuf); |
da58c263 | 999 | usb_free_urb(devpriv->urb); |
2d719c9c | 1000 | } |
38bf7ba8 | 1001 | |
5659e24a | 1002 | kfree(devpriv->duxbuf); |
38bf7ba8 | 1003 | |
27a90695 | 1004 | mutex_unlock(&devpriv->mut); |
2d719c9c HS |
1005 | } |
1006 | ||
1007 | static struct comedi_driver usbduxfast_driver = { | |
1008 | .driver_name = "usbduxfast", | |
1009 | .module = THIS_MODULE, | |
1010 | .auto_attach = usbduxfast_auto_attach, | |
1011 | .detach = usbduxfast_detach, | |
1012 | }; | |
1013 | ||
1014 | static int usbduxfast_usb_probe(struct usb_interface *intf, | |
1015 | const struct usb_device_id *id) | |
1016 | { | |
a35fd8a1 | 1017 | return comedi_usb_auto_config(intf, &usbduxfast_driver, 0); |
f47c697d BP |
1018 | } |
1019 | ||
4c8ba916 | 1020 | static const struct usb_device_id usbduxfast_usb_table[] = { |
4e8ad0dc | 1021 | /* { USB_DEVICE(0x4b4, 0x8613) }, testing */ |
4c8ba916 HS |
1022 | { USB_DEVICE(0x13d8, 0x0010) }, /* real ID */ |
1023 | { USB_DEVICE(0x13d8, 0x0011) }, /* real ID */ | |
1024 | { } | |
f47c697d | 1025 | }; |
4c8ba916 | 1026 | MODULE_DEVICE_TABLE(usb, usbduxfast_usb_table); |
f47c697d | 1027 | |
cb9513ad | 1028 | static struct usb_driver usbduxfast_usb_driver = { |
4c8ba916 HS |
1029 | .name = "usbduxfast", |
1030 | .probe = usbduxfast_usb_probe, | |
0c4ab671 | 1031 | .disconnect = comedi_usb_auto_unconfig, |
4c8ba916 | 1032 | .id_table = usbduxfast_usb_table, |
f47c697d | 1033 | }; |
cb9513ad | 1034 | module_comedi_usb_driver(usbduxfast_driver, usbduxfast_usb_driver); |
f47c697d | 1035 | |
4c8ba916 HS |
1036 | MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com"); |
1037 | MODULE_DESCRIPTION("USB-DUXfast, BerndPorr@f2s.com"); | |
f47c697d | 1038 | MODULE_LICENSE("GPL"); |
e74f7fc5 | 1039 | MODULE_FIRMWARE(FIRMWARE); |