Commit | Line | Data |
---|---|---|
4bf21fa4 BP |
1 | /* |
2 | comedi/drivers/usbdux.c | |
3 | Copyright (C) 2003-2007 Bernd Porr, Bernd.Porr@f2s.com | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
4bf21fa4 BP |
14 | */ |
15 | /* | |
16 | Driver: usbdux | |
17 | Description: University of Stirling USB DAQ & INCITE Technology Limited | |
18 | Devices: [ITL] USB-DUX (usbdux.o) | |
19 | Author: Bernd Porr <BerndPorr@f2s.com> | |
6742c0af BP |
20 | Updated: 8 Dec 2008 |
21 | Status: Stable | |
4bf21fa4 BP |
22 | Configuration options: |
23 | You have to upload firmware with the -i option. The | |
24 | firmware is usually installed under /usr/share/usb or | |
25 | /usr/local/share/usb or /lib/firmware. | |
26 | ||
27 | Connection scheme for the counter at the digital port: | |
28 | 0=/CLK0, 1=UP/DOWN0, 2=RESET0, 4=/CLK1, 5=UP/DOWN1, 6=RESET1. | |
29 | The sampling rate of the counter is approximately 500Hz. | |
30 | ||
31 | Please note that under USB2.0 the length of the channel list determines | |
32 | the max sampling rate. If you sample only one channel you get 8kHz | |
33 | sampling rate. If you sample two channels you get 4kHz and so on. | |
34 | */ | |
35 | /* | |
36 | * I must give credit here to Chris Baugher who | |
37 | * wrote the driver for AT-MIO-16d. I used some parts of this | |
38 | * driver. I also must give credits to David Brownell | |
39 | * who supported me with the USB development. | |
40 | * | |
41 | * Bernd Porr | |
42 | * | |
43 | * | |
44 | * Revision history: | |
45 | * 0.94: D/A output should work now with any channel list combinations | |
46 | * 0.95: .owner commented out for kernel vers below 2.4.19 | |
47 | * sanity checks in ai/ao_cmd | |
4274ea02 GKH |
48 | * 0.96: trying to get it working with 2.6, moved all memory alloc to comedi's |
49 | * attach final USB IDs | |
50 | * moved memory allocation completely to the corresponding comedi | |
51 | * functions firmware upload is by fxload and no longer by comedi (due to | |
52 | * enumeration) | |
4bf21fa4 | 53 | * 0.97: USB IDs received, adjusted table |
20ce161d | 54 | * 0.98: SMP, locking, memory alloc: moved all usb memory alloc |
4bf21fa4 BP |
55 | * to the usb subsystem and moved all comedi related memory |
56 | * alloc to comedi. | |
57 | * | kernel | registration | usbdux-usb | usbdux-comedi | comedi | | |
58 | * 0.99: USB 2.0: changed protocol to isochronous transfer | |
59 | * IRQ transfer is too buggy and too risky in 2.0 | |
4274ea02 GKH |
60 | * for the high speed ISO transfer is now a working version |
61 | * available | |
4bf21fa4 BP |
62 | * 0.99b: Increased the iso transfer buffer for high sp.to 10 buffers. Some VIA |
63 | * chipsets miss out IRQs. Deeper buffering is needed. | |
4274ea02 GKH |
64 | * 1.00: full USB 2.0 support for the A/D converter. Now: max 8kHz sampling |
65 | * rate. | |
4bf21fa4 BP |
66 | * Firmware vers 1.00 is needed for this. |
67 | * Two 16 bit up/down/reset counter with a sampling rate of 1kHz | |
68 | * And loads of cleaning up, in particular streamlining the | |
69 | * bulk transfers. | |
70 | * 1.1: moved EP4 transfers to EP1 to make space for a PWM output on EP4 | |
02582e9b | 71 | * 1.2: added PWM support via EP4 |
4bf21fa4 BP |
72 | * 2.0: PWM seems to be stable and is not interfering with the other functions |
73 | * 2.1: changed PWM API | |
6742c0af | 74 | * 2.2: added firmware kernel request to fix an udev problem |
ea25371a | 75 | * 2.3: corrected a bug in bulk timeouts which were far too short |
d4c3a565 BP |
76 | * 2.4: fixed a bug which causes the driver to hang when it ran out of data. |
77 | * Thanks to Jan-Matthias Braun and Ian to spot the bug and fix it. | |
4bf21fa4 BP |
78 | * |
79 | */ | |
80 | ||
4bf21fa4 BP |
81 | #include <linux/kernel.h> |
82 | #include <linux/module.h> | |
83 | #include <linux/init.h> | |
84 | #include <linux/slab.h> | |
85 | #include <linux/input.h> | |
86 | #include <linux/usb.h> | |
4bf21fa4 BP |
87 | #include <linux/fcntl.h> |
88 | #include <linux/compiler.h> | |
89 | ||
90 | #include "../comedidev.h" | |
4bf21fa4 | 91 | |
27020ffe HS |
92 | #include "comedi_fc.h" |
93 | ||
ea25371a BP |
94 | /* timeout for the USB-transfer in ms*/ |
95 | #define BULK_TIMEOUT 1000 | |
4bf21fa4 | 96 | |
e54fb9c1 | 97 | /* constants for "firmware" upload and download */ |
1e1ccc3a | 98 | #define FIRMWARE "usbdux_firmware.bin" |
4bf21fa4 BP |
99 | #define USBDUXSUB_FIRMWARE 0xA0 |
100 | #define VENDOR_DIR_IN 0xC0 | |
101 | #define VENDOR_DIR_OUT 0x40 | |
102 | ||
f69b0d64 | 103 | /* internal addresses of the 8051 processor */ |
4bf21fa4 BP |
104 | #define USBDUXSUB_CPUCS 0xE600 |
105 | ||
e54fb9c1 GKH |
106 | /* |
107 | * the minor device number, major is 180 only for debugging purposes and to | |
108 | * upload special firmware (programming the eeprom etc) which is not compatible | |
109 | * with the comedi framwork | |
110 | */ | |
4bf21fa4 BP |
111 | #define USBDUXSUB_MINOR 32 |
112 | ||
e54fb9c1 | 113 | /* max lenghth of the transfer-buffer for software upload */ |
4bf21fa4 BP |
114 | #define TB_LEN 0x2000 |
115 | ||
e54fb9c1 | 116 | /* Input endpoint number: ISO/IRQ */ |
4bf21fa4 BP |
117 | #define ISOINEP 6 |
118 | ||
e54fb9c1 | 119 | /* Output endpoint number: ISO/IRQ */ |
4bf21fa4 BP |
120 | #define ISOOUTEP 2 |
121 | ||
e54fb9c1 | 122 | /* This EP sends DUX commands to USBDUX */ |
4bf21fa4 BP |
123 | #define COMMAND_OUT_EP 1 |
124 | ||
e54fb9c1 | 125 | /* This EP receives the DUX commands from USBDUX */ |
4bf21fa4 BP |
126 | #define COMMAND_IN_EP 8 |
127 | ||
e54fb9c1 | 128 | /* Output endpoint for PWM */ |
4bf21fa4 BP |
129 | #define PWM_EP 4 |
130 | ||
e54fb9c1 | 131 | /* 300Hz max frequ under PWM */ |
4bf21fa4 BP |
132 | #define MIN_PWM_PERIOD ((long)(1E9/300)) |
133 | ||
e54fb9c1 | 134 | /* Default PWM frequency */ |
4bf21fa4 BP |
135 | #define PWM_DEFAULT_PERIOD ((long)(1E9/100)) |
136 | ||
e54fb9c1 | 137 | /* Number of channels */ |
4bf21fa4 BP |
138 | #define NUMCHANNELS 8 |
139 | ||
e54fb9c1 | 140 | /* Size of one A/D value */ |
4bf21fa4 BP |
141 | #define SIZEADIN ((sizeof(int16_t))) |
142 | ||
4274ea02 GKH |
143 | /* |
144 | * Size of the input-buffer IN BYTES | |
145 | * Always multiple of 8 for 8 microframes which is needed in the highspeed mode | |
146 | */ | |
4bf21fa4 BP |
147 | #define SIZEINBUF ((8*SIZEADIN)) |
148 | ||
e54fb9c1 | 149 | /* 16 bytes. */ |
4bf21fa4 BP |
150 | #define SIZEINSNBUF 16 |
151 | ||
e54fb9c1 | 152 | /* Number of DA channels */ |
4bf21fa4 BP |
153 | #define NUMOUTCHANNELS 8 |
154 | ||
e54fb9c1 | 155 | /* size of one value for the D/A converter: channel and value */ |
4bf21fa4 BP |
156 | #define SIZEDAOUT ((sizeof(int8_t)+sizeof(int16_t))) |
157 | ||
e54fb9c1 GKH |
158 | /* |
159 | * Size of the output-buffer in bytes | |
160 | * Actually only the first 4 triplets are used but for the | |
161 | * high speed mode we need to pad it to 8 (microframes). | |
162 | */ | |
4bf21fa4 BP |
163 | #define SIZEOUTBUF ((8*SIZEDAOUT)) |
164 | ||
e54fb9c1 GKH |
165 | /* |
166 | * Size of the buffer for the dux commands: just now max size is determined | |
167 | * by the analogue out + command byte + panic bytes... | |
168 | */ | |
4bf21fa4 BP |
169 | #define SIZEOFDUXBUFFER ((8*SIZEDAOUT+2)) |
170 | ||
e54fb9c1 | 171 | /* Number of in-URBs which receive the data: min=2 */ |
4bf21fa4 BP |
172 | #define NUMOFINBUFFERSFULL 5 |
173 | ||
e54fb9c1 | 174 | /* Number of out-URBs which send the data: min=2 */ |
4bf21fa4 BP |
175 | #define NUMOFOUTBUFFERSFULL 5 |
176 | ||
e54fb9c1 GKH |
177 | /* Number of in-URBs which receive the data: min=5 */ |
178 | /* must have more buffers due to buggy USB ctr */ | |
179 | #define NUMOFINBUFFERSHIGH 10 | |
4bf21fa4 | 180 | |
e54fb9c1 GKH |
181 | /* Number of out-URBs which send the data: min=5 */ |
182 | /* must have more buffers due to buggy USB ctr */ | |
183 | #define NUMOFOUTBUFFERSHIGH 10 | |
4bf21fa4 | 184 | |
e54fb9c1 | 185 | /* number of retries to get the right dux command */ |
4bf21fa4 BP |
186 | #define RETRIES 10 |
187 | ||
38691ec1 HS |
188 | static const struct comedi_lrange range_usbdux_ai_range = { |
189 | 4, { | |
190 | BIP_RANGE(4.096), | |
191 | BIP_RANGE(4.096 / 2), | |
192 | UNI_RANGE(4.096), | |
193 | UNI_RANGE(4.096 / 2) | |
194 | } | |
4bf21fa4 BP |
195 | }; |
196 | ||
38691ec1 HS |
197 | static const struct comedi_lrange range_usbdux_ao_range = { |
198 | 2, { | |
199 | BIP_RANGE(4.096), | |
200 | UNI_RANGE(4.096) | |
201 | } | |
4bf21fa4 BP |
202 | }; |
203 | ||
40f1a5ab | 204 | struct usbdux_private { |
e54fb9c1 | 205 | /* actual number of in-buffers */ |
b74e5f56 | 206 | int num_in_buffers; |
e54fb9c1 | 207 | /* actual number of out-buffers */ |
b74e5f56 | 208 | int num_out_buffers; |
e54fb9c1 | 209 | /* ISO-transfer handling: buffers */ |
b74e5f56 JG |
210 | struct urb **urb_in; |
211 | struct urb **urb_out; | |
e54fb9c1 | 212 | /* pwm-transfer handling */ |
b74e5f56 | 213 | struct urb *urb_pwm; |
e54fb9c1 | 214 | /* PWM period */ |
b74e5f56 | 215 | unsigned int pwm_period; |
e54fb9c1 | 216 | /* PWM internal delay for the GPIF in the FX2 */ |
b74e5f56 | 217 | int8_t pwn_delay; |
e54fb9c1 | 218 | /* size of the PWM buffer which holds the bit pattern */ |
b74e5f56 | 219 | int size_pwm_buf; |
e54fb9c1 | 220 | /* input buffer for the ISO-transfer */ |
b74e5f56 | 221 | int16_t *in_buffer; |
e54fb9c1 | 222 | /* input buffer for single insn */ |
b74e5f56 | 223 | int16_t *insn_buffer; |
e54fb9c1 | 224 | /* output buffer for single DA outputs */ |
b74e5f56 | 225 | int16_t *out_buffer; |
b8c162c9 HS |
226 | |
227 | unsigned int high_speed:1; | |
228 | unsigned int ai_cmd_running:1; | |
229 | unsigned int ai_continous:1; | |
230 | unsigned int ao_cmd_running:1; | |
231 | unsigned int ao_continous:1; | |
232 | unsigned int pwm_cmd_running:1; | |
233 | ||
9d220c6b | 234 | /* number of samples to acquire */ |
4bf21fa4 BP |
235 | int ai_sample_count; |
236 | int ao_sample_count; | |
e54fb9c1 | 237 | /* time between samples in units of the timer */ |
4bf21fa4 BP |
238 | unsigned int ai_timer; |
239 | unsigned int ao_timer; | |
e54fb9c1 | 240 | /* counter between aquisitions */ |
4bf21fa4 BP |
241 | unsigned int ai_counter; |
242 | unsigned int ao_counter; | |
e54fb9c1 | 243 | /* interval in frames/uframes */ |
4bf21fa4 | 244 | unsigned int ai_interval; |
e54fb9c1 | 245 | /* D/A commands */ |
4bf21fa4 | 246 | int8_t *dac_commands; |
e54fb9c1 | 247 | /* commands */ |
4bf21fa4 BP |
248 | int8_t *dux_commands; |
249 | struct semaphore sem; | |
cc92fca7 | 250 | }; |
4bf21fa4 | 251 | |
3c50bbb7 | 252 | static void usbduxsub_unlink_inurbs(struct comedi_device *dev) |
4bf21fa4 | 253 | { |
3c50bbb7 HS |
254 | struct usbdux_private *devpriv = dev->private; |
255 | int i; | |
4bf21fa4 | 256 | |
3c50bbb7 HS |
257 | if (devpriv->urb_in) { |
258 | for (i = 0; i < devpriv->num_in_buffers; i++) | |
259 | usb_kill_urb(devpriv->urb_in[i]); | |
4bf21fa4 | 260 | } |
4bf21fa4 BP |
261 | } |
262 | ||
3c50bbb7 | 263 | static void usbdux_ai_stop(struct comedi_device *dev, int do_unlink) |
4bf21fa4 | 264 | { |
b3476e67 | 265 | struct usbdux_private *devpriv = dev->private; |
4bf21fa4 | 266 | |
b3476e67 | 267 | if (do_unlink) |
3c50bbb7 | 268 | usbduxsub_unlink_inurbs(dev); |
4bf21fa4 | 269 | |
b3476e67 | 270 | devpriv->ai_cmd_running = 0; |
4bf21fa4 BP |
271 | } |
272 | ||
0a85b6f0 MT |
273 | static int usbdux_ai_cancel(struct comedi_device *dev, |
274 | struct comedi_subdevice *s) | |
4bf21fa4 | 275 | { |
aa6081e5 | 276 | struct usbdux_private *devpriv = dev->private; |
c0e0c26e | 277 | |
e54fb9c1 | 278 | /* prevent other CPUs from submitting new commands just now */ |
aa6081e5 | 279 | down(&devpriv->sem); |
e54fb9c1 | 280 | /* unlink only if the urb really has been submitted */ |
3c50bbb7 | 281 | usbdux_ai_stop(dev, devpriv->ai_cmd_running); |
aa6081e5 HS |
282 | up(&devpriv->sem); |
283 | ||
3c50bbb7 | 284 | return 0; |
4bf21fa4 BP |
285 | } |
286 | ||
e54fb9c1 | 287 | /* analogue IN - interrupt service routine */ |
b74e5f56 | 288 | static void usbduxsub_ai_isoc_irq(struct urb *urb) |
4bf21fa4 | 289 | { |
0a9502f2 HS |
290 | struct comedi_device *dev = urb->context; |
291 | struct comedi_subdevice *s = dev->read_subdev; | |
292 | struct usbdux_private *devpriv = dev->private; | |
4bf21fa4 | 293 | int i, err, n; |
4bf21fa4 | 294 | |
e54fb9c1 | 295 | /* first we test if something unusual has just happened */ |
4bf21fa4 BP |
296 | switch (urb->status) { |
297 | case 0: | |
e54fb9c1 | 298 | /* copy the result in the transfer buffer */ |
0a9502f2 | 299 | memcpy(devpriv->in_buffer, urb->transfer_buffer, SIZEINBUF); |
4bf21fa4 BP |
300 | break; |
301 | case -EILSEQ: | |
e54fb9c1 GKH |
302 | /* error in the ISOchronous data */ |
303 | /* we don't copy the data into the transfer buffer */ | |
304 | /* and recycle the last data byte */ | |
0a9502f2 | 305 | dev_dbg(dev->class_dev, "CRC error in ISO IN stream\n"); |
4bf21fa4 BP |
306 | break; |
307 | ||
4bf21fa4 BP |
308 | case -ECONNRESET: |
309 | case -ENOENT: | |
310 | case -ESHUTDOWN: | |
311 | case -ECONNABORTED: | |
e54fb9c1 | 312 | /* happens after an unlink command */ |
0a9502f2 | 313 | if (devpriv->ai_cmd_running) { |
4bf21fa4 BP |
314 | s->async->events |= COMEDI_CB_EOA; |
315 | s->async->events |= COMEDI_CB_ERROR; | |
0a9502f2 | 316 | comedi_event(dev, s); |
e54fb9c1 | 317 | /* stop the transfer w/o unlink */ |
b3476e67 | 318 | usbdux_ai_stop(dev, 0); |
4bf21fa4 BP |
319 | } |
320 | return; | |
321 | ||
4bf21fa4 | 322 | default: |
e54fb9c1 GKH |
323 | /* a real error on the bus */ |
324 | /* pass error to comedi if we are really running a command */ | |
0a9502f2 HS |
325 | if (devpriv->ai_cmd_running) { |
326 | dev_err(dev->class_dev, | |
327 | "Non-zero urb status received in ai intr context: %d\n", | |
328 | urb->status); | |
4bf21fa4 BP |
329 | s->async->events |= COMEDI_CB_EOA; |
330 | s->async->events |= COMEDI_CB_ERROR; | |
0a9502f2 | 331 | comedi_event(dev, s); |
e54fb9c1 | 332 | /* don't do an unlink here */ |
b3476e67 | 333 | usbdux_ai_stop(dev, 0); |
4bf21fa4 BP |
334 | } |
335 | return; | |
336 | } | |
337 | ||
4274ea02 GKH |
338 | /* |
339 | * at this point we are reasonably sure that nothing dodgy has happened | |
340 | * are we running a command? | |
341 | */ | |
0a9502f2 | 342 | if (unlikely(!devpriv->ai_cmd_running)) { |
e54fb9c1 GKH |
343 | /* |
344 | * not running a command, do not continue execution if no | |
345 | * asynchronous command is running in particular not resubmit | |
346 | */ | |
4bf21fa4 BP |
347 | return; |
348 | } | |
349 | ||
0b20d613 | 350 | urb->dev = comedi_to_usb_dev(dev); |
4bf21fa4 | 351 | |
8fa07567 | 352 | /* resubmit the urb */ |
4aa3a823 | 353 | err = usb_submit_urb(urb, GFP_ATOMIC); |
4bf21fa4 | 354 | if (unlikely(err < 0)) { |
0a9502f2 HS |
355 | dev_err(dev->class_dev, |
356 | "urb resubmit failed in int-context! err=%d\n", err); | |
8fa07567 | 357 | if (err == -EL2NSYNC) |
0a9502f2 HS |
358 | dev_err(dev->class_dev, |
359 | "buggy USB host controller or bug in IRQ handler!\n"); | |
4bf21fa4 BP |
360 | s->async->events |= COMEDI_CB_EOA; |
361 | s->async->events |= COMEDI_CB_ERROR; | |
0a9502f2 | 362 | comedi_event(dev, s); |
8fa07567 | 363 | /* don't do an unlink here */ |
b3476e67 | 364 | usbdux_ai_stop(dev, 0); |
4bf21fa4 BP |
365 | return; |
366 | } | |
367 | ||
0a9502f2 HS |
368 | devpriv->ai_counter--; |
369 | if (likely(devpriv->ai_counter > 0)) | |
4bf21fa4 | 370 | return; |
8fa07567 | 371 | |
e54fb9c1 | 372 | /* timer zero, transfer measurements to comedi */ |
0a9502f2 | 373 | devpriv->ai_counter = devpriv->ai_timer; |
4bf21fa4 | 374 | |
e54fb9c1 | 375 | /* test, if we transmit only a fixed number of samples */ |
0a9502f2 | 376 | if (!devpriv->ai_continous) { |
25985edc | 377 | /* not continuous, fixed number of samples */ |
0a9502f2 | 378 | devpriv->ai_sample_count--; |
e54fb9c1 | 379 | /* all samples received? */ |
0a9502f2 | 380 | if (devpriv->ai_sample_count < 0) { |
e54fb9c1 | 381 | /* prevent a resubmit next time */ |
b3476e67 | 382 | usbdux_ai_stop(dev, 0); |
e54fb9c1 | 383 | /* say comedi that the acquistion is over */ |
4bf21fa4 | 384 | s->async->events |= COMEDI_CB_EOA; |
0a9502f2 | 385 | comedi_event(dev, s); |
4bf21fa4 BP |
386 | return; |
387 | } | |
388 | } | |
e54fb9c1 | 389 | /* get the data from the USB bus and hand it over to comedi */ |
4bf21fa4 BP |
390 | n = s->async->cmd.chanlist_len; |
391 | for (i = 0; i < n; i++) { | |
e54fb9c1 | 392 | /* transfer data */ |
4bf21fa4 | 393 | if (CR_RANGE(s->async->cmd.chanlist[i]) <= 1) { |
0a9502f2 HS |
394 | err = comedi_buf_put(s->async, |
395 | le16_to_cpu(devpriv->in_buffer[i]) ^ 0x800); | |
4bf21fa4 | 396 | } else { |
0a9502f2 HS |
397 | err = comedi_buf_put(s->async, |
398 | le16_to_cpu(devpriv->in_buffer[i])); | |
efe8d60a BP |
399 | } |
400 | if (unlikely(err == 0)) { | |
401 | /* buffer overflow */ | |
b3476e67 | 402 | usbdux_ai_stop(dev, 0); |
efe8d60a | 403 | return; |
4bf21fa4 BP |
404 | } |
405 | } | |
e54fb9c1 | 406 | /* tell comedi that data is there */ |
d4c3a565 | 407 | s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS; |
0a9502f2 | 408 | comedi_event(dev, s); |
4bf21fa4 BP |
409 | } |
410 | ||
3c50bbb7 | 411 | static void usbduxsub_unlink_outurbs(struct comedi_device *dev) |
4bf21fa4 | 412 | { |
3c50bbb7 HS |
413 | struct usbdux_private *devpriv = dev->private; |
414 | int i; | |
4bf21fa4 | 415 | |
3c50bbb7 HS |
416 | if (devpriv->urb_out) { |
417 | for (i = 0; i < devpriv->num_out_buffers; i++) | |
418 | usb_kill_urb(devpriv->urb_out[i]); | |
4bf21fa4 | 419 | } |
4bf21fa4 BP |
420 | } |
421 | ||
3c50bbb7 | 422 | static void usbdux_ao_stop(struct comedi_device *dev, int do_unlink) |
4bf21fa4 | 423 | { |
7c8ed94e | 424 | struct usbdux_private *devpriv = dev->private; |
4bf21fa4 | 425 | |
8fa07567 | 426 | if (do_unlink) |
3c50bbb7 | 427 | usbduxsub_unlink_outurbs(dev); |
4bf21fa4 | 428 | |
7c8ed94e | 429 | devpriv->ao_cmd_running = 0; |
4bf21fa4 BP |
430 | } |
431 | ||
0a85b6f0 MT |
432 | static int usbdux_ao_cancel(struct comedi_device *dev, |
433 | struct comedi_subdevice *s) | |
4bf21fa4 | 434 | { |
eee7d9e9 | 435 | struct usbdux_private *devpriv = dev->private; |
c0e0c26e | 436 | |
e54fb9c1 | 437 | /* prevent other CPUs from submitting a command just now */ |
eee7d9e9 | 438 | down(&devpriv->sem); |
e54fb9c1 | 439 | /* unlink only if it is really running */ |
3c50bbb7 | 440 | usbdux_ao_stop(dev, devpriv->ao_cmd_running); |
eee7d9e9 HS |
441 | up(&devpriv->sem); |
442 | ||
3c50bbb7 | 443 | return 0; |
4bf21fa4 BP |
444 | } |
445 | ||
b74e5f56 | 446 | static void usbduxsub_ao_isoc_irq(struct urb *urb) |
4bf21fa4 | 447 | { |
e057288f HS |
448 | struct comedi_device *dev = urb->context; |
449 | struct comedi_subdevice *s = dev->write_subdev; | |
450 | struct usbdux_private *devpriv = dev->private; | |
4bf21fa4 BP |
451 | int i, ret; |
452 | int8_t *datap; | |
4bf21fa4 BP |
453 | |
454 | switch (urb->status) { | |
455 | case 0: | |
456 | /* success */ | |
457 | break; | |
458 | ||
4bf21fa4 BP |
459 | case -ECONNRESET: |
460 | case -ENOENT: | |
461 | case -ESHUTDOWN: | |
462 | case -ECONNABORTED: | |
e54fb9c1 GKH |
463 | /* after an unlink command, unplug, ... etc */ |
464 | /* no unlink needed here. Already shutting down. */ | |
e057288f | 465 | if (devpriv->ao_cmd_running) { |
4bf21fa4 | 466 | s->async->events |= COMEDI_CB_EOA; |
e057288f | 467 | comedi_event(dev, s); |
7c8ed94e | 468 | usbdux_ao_stop(dev, 0); |
4bf21fa4 BP |
469 | } |
470 | return; | |
471 | ||
4bf21fa4 | 472 | default: |
e54fb9c1 | 473 | /* a real error */ |
e057288f HS |
474 | if (devpriv->ao_cmd_running) { |
475 | dev_err(dev->class_dev, | |
476 | "Non-zero urb status received in ao intr context: %d\n", | |
477 | urb->status); | |
4bf21fa4 BP |
478 | s->async->events |= COMEDI_CB_ERROR; |
479 | s->async->events |= COMEDI_CB_EOA; | |
e057288f | 480 | comedi_event(dev, s); |
e54fb9c1 | 481 | /* we do an unlink if we are in the high speed mode */ |
7c8ed94e | 482 | usbdux_ao_stop(dev, 0); |
4bf21fa4 BP |
483 | } |
484 | return; | |
485 | } | |
486 | ||
e54fb9c1 | 487 | /* are we actually running? */ |
e057288f | 488 | if (!devpriv->ao_cmd_running) |
4bf21fa4 | 489 | return; |
8fa07567 | 490 | |
e54fb9c1 | 491 | /* normal operation: executing a command in this subdevice */ |
e057288f HS |
492 | devpriv->ao_counter--; |
493 | if ((int)devpriv->ao_counter <= 0) { | |
e54fb9c1 | 494 | /* timer zero */ |
e057288f | 495 | devpriv->ao_counter = devpriv->ao_timer; |
4bf21fa4 | 496 | |
25985edc | 497 | /* handle non continous acquisition */ |
e057288f | 498 | if (!devpriv->ao_continous) { |
e54fb9c1 | 499 | /* fixed number of samples */ |
e057288f HS |
500 | devpriv->ao_sample_count--; |
501 | if (devpriv->ao_sample_count < 0) { | |
e54fb9c1 | 502 | /* all samples transmitted */ |
7c8ed94e | 503 | usbdux_ao_stop(dev, 0); |
4bf21fa4 | 504 | s->async->events |= COMEDI_CB_EOA; |
e057288f | 505 | comedi_event(dev, s); |
e54fb9c1 | 506 | /* no resubmit of the urb */ |
4bf21fa4 BP |
507 | return; |
508 | } | |
509 | } | |
e54fb9c1 | 510 | /* transmit data to the USB bus */ |
4bf21fa4 | 511 | ((uint8_t *) (urb->transfer_buffer))[0] = |
0a85b6f0 | 512 | s->async->cmd.chanlist_len; |
4bf21fa4 | 513 | for (i = 0; i < s->async->cmd.chanlist_len; i++) { |
790c5541 | 514 | short temp; |
8fa07567 | 515 | if (i >= NUMOUTCHANNELS) |
4bf21fa4 | 516 | break; |
8fa07567 | 517 | |
e54fb9c1 | 518 | /* pointer to the DA */ |
4274ea02 | 519 | datap = |
0a85b6f0 | 520 | (&(((int8_t *) urb->transfer_buffer)[i * 3 + 1])); |
e54fb9c1 | 521 | /* get the data from comedi */ |
4bf21fa4 BP |
522 | ret = comedi_buf_get(s->async, &temp); |
523 | datap[0] = temp; | |
524 | datap[1] = temp >> 8; | |
e057288f | 525 | datap[2] = devpriv->dac_commands[i]; |
4bf21fa4 | 526 | if (ret < 0) { |
c0e0c26e GKH |
527 | dev_err(&urb->dev->dev, |
528 | "comedi: buffer underflow\n"); | |
4bf21fa4 BP |
529 | s->async->events |= COMEDI_CB_EOA; |
530 | s->async->events |= COMEDI_CB_OVERFLOW; | |
531 | } | |
e54fb9c1 | 532 | /* transmit data to comedi */ |
4bf21fa4 | 533 | s->async->events |= COMEDI_CB_BLOCK; |
e057288f | 534 | comedi_event(dev, s); |
4bf21fa4 BP |
535 | } |
536 | } | |
537 | urb->transfer_buffer_length = SIZEOUTBUF; | |
0b20d613 | 538 | urb->dev = comedi_to_usb_dev(dev); |
4bf21fa4 | 539 | urb->status = 0; |
e057288f HS |
540 | if (devpriv->ao_cmd_running) { |
541 | if (devpriv->high_speed) | |
542 | urb->interval = 8; /* uframes */ | |
543 | else | |
544 | urb->interval = 1; /* frames */ | |
4bf21fa4 BP |
545 | urb->number_of_packets = 1; |
546 | urb->iso_frame_desc[0].offset = 0; | |
547 | urb->iso_frame_desc[0].length = SIZEOUTBUF; | |
548 | urb->iso_frame_desc[0].status = 0; | |
4aa3a823 | 549 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
4274ea02 | 550 | if (ret < 0) { |
e057288f HS |
551 | dev_err(dev->class_dev, |
552 | "ao urb resubm failed in int-cont. ret=%d", | |
553 | ret); | |
8fa07567 | 554 | if (ret == EL2NSYNC) |
e057288f HS |
555 | dev_err(dev->class_dev, |
556 | "buggy USB host controller or bug in IRQ handling!\n"); | |
8fa07567 | 557 | |
4bf21fa4 BP |
558 | s->async->events |= COMEDI_CB_EOA; |
559 | s->async->events |= COMEDI_CB_ERROR; | |
e057288f | 560 | comedi_event(dev, s); |
e54fb9c1 | 561 | /* don't do an unlink here */ |
7c8ed94e | 562 | usbdux_ao_stop(dev, 0); |
4bf21fa4 BP |
563 | } |
564 | } | |
565 | } | |
566 | ||
81874ff7 BP |
567 | #define FIRMWARE_MAX_LEN 0x2000 |
568 | ||
1383b9dd HS |
569 | static int usbdux_firmware_upload(struct comedi_device *dev, |
570 | const u8 *data, size_t size, | |
571 | unsigned long context) | |
4bf21fa4 | 572 | { |
0b20d613 | 573 | struct usb_device *usb = comedi_to_usb_dev(dev); |
4bf6bfe3 HS |
574 | uint8_t *buf; |
575 | uint8_t *tmp; | |
4bf21fa4 BP |
576 | int ret; |
577 | ||
4bf6bfe3 | 578 | if (!data) |
4bf21fa4 | 579 | return 0; |
4274ea02 | 580 | |
4bf6bfe3 | 581 | if (size > FIRMWARE_MAX_LEN) { |
5d293d90 | 582 | dev_err(dev->class_dev, |
94c1f90b | 583 | "usbdux firmware binary it too large for FX2.\n"); |
81874ff7 BP |
584 | return -ENOMEM; |
585 | } | |
586 | ||
587 | /* we generate a local buffer for the firmware */ | |
4bf6bfe3 HS |
588 | buf = kmemdup(data, size, GFP_KERNEL); |
589 | if (!buf) | |
590 | return -ENOMEM; | |
591 | ||
592 | /* we need a malloc'ed buffer for usb_control_msg() */ | |
593 | tmp = kmalloc(1, GFP_KERNEL); | |
594 | if (!tmp) { | |
595 | kfree(buf); | |
81874ff7 BP |
596 | return -ENOMEM; |
597 | } | |
81874ff7 | 598 | |
4bf6bfe3 HS |
599 | /* stop the current firmware on the device */ |
600 | *tmp = 1; /* 7f92 to one */ | |
601 | ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0), | |
602 | USBDUXSUB_FIRMWARE, | |
603 | VENDOR_DIR_OUT, | |
604 | USBDUXSUB_CPUCS, 0x0000, | |
605 | tmp, 1, | |
606 | BULK_TIMEOUT); | |
4bf21fa4 | 607 | if (ret < 0) { |
5d293d90 | 608 | dev_err(dev->class_dev, "can not stop firmware\n"); |
4bf6bfe3 | 609 | goto done; |
4bf21fa4 | 610 | } |
81874ff7 | 611 | |
4bf6bfe3 HS |
612 | /* upload the new firmware to the device */ |
613 | ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0), | |
614 | USBDUXSUB_FIRMWARE, | |
615 | VENDOR_DIR_OUT, | |
616 | 0, 0x0000, | |
617 | buf, size, | |
618 | BULK_TIMEOUT); | |
4bf21fa4 | 619 | if (ret < 0) { |
5d293d90 | 620 | dev_err(dev->class_dev, "firmware upload failed\n"); |
4bf6bfe3 | 621 | goto done; |
4bf21fa4 | 622 | } |
4bf6bfe3 HS |
623 | |
624 | /* start the new firmware on the device */ | |
625 | *tmp = 0; /* 7f92 to zero */ | |
626 | ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0), | |
627 | USBDUXSUB_FIRMWARE, | |
628 | VENDOR_DIR_OUT, | |
629 | USBDUXSUB_CPUCS, 0x0000, | |
630 | tmp, 1, | |
631 | BULK_TIMEOUT); | |
632 | if (ret < 0) | |
5d293d90 | 633 | dev_err(dev->class_dev, "can not start firmware\n"); |
4bf6bfe3 HS |
634 | |
635 | done: | |
636 | kfree(tmp); | |
637 | kfree(buf); | |
638 | return ret; | |
4bf21fa4 BP |
639 | } |
640 | ||
865d9eed | 641 | static int usbduxsub_submit_inurbs(struct comedi_device *dev) |
4bf21fa4 | 642 | { |
0b20d613 | 643 | struct usb_device *usb = comedi_to_usb_dev(dev); |
865d9eed HS |
644 | struct usbdux_private *devpriv = dev->private; |
645 | struct urb *urb; | |
646 | int ret; | |
647 | int i; | |
8fa07567 | 648 | |
4bf21fa4 | 649 | /* Submit all URBs and start the transfer on the bus */ |
865d9eed HS |
650 | for (i = 0; i < devpriv->num_in_buffers; i++) { |
651 | urb = devpriv->urb_in[i]; | |
652 | ||
8fa07567 | 653 | /* in case of a resubmission after an unlink... */ |
865d9eed HS |
654 | urb->interval = devpriv->ai_interval; |
655 | urb->context = dev; | |
0b20d613 | 656 | urb->dev = usb; |
865d9eed HS |
657 | urb->status = 0; |
658 | urb->transfer_flags = URB_ISO_ASAP; | |
659 | ||
660 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
661 | if (ret) | |
662 | return ret; | |
4bf21fa4 BP |
663 | } |
664 | return 0; | |
665 | } | |
666 | ||
6754698b | 667 | static int usbduxsub_submit_outurbs(struct comedi_device *dev) |
4bf21fa4 | 668 | { |
0b20d613 | 669 | struct usb_device *usb = comedi_to_usb_dev(dev); |
6754698b HS |
670 | struct usbdux_private *devpriv = dev->private; |
671 | struct urb *urb; | |
672 | int ret; | |
673 | int i; | |
4bf21fa4 | 674 | |
6754698b HS |
675 | for (i = 0; i < devpriv->num_out_buffers; i++) { |
676 | urb = devpriv->urb_out[i]; | |
4274ea02 | 677 | |
e54fb9c1 | 678 | /* in case of a resubmission after an unlink... */ |
6754698b | 679 | urb->context = dev; |
0b20d613 | 680 | urb->dev = usb; |
6754698b HS |
681 | urb->status = 0; |
682 | urb->transfer_flags = URB_ISO_ASAP; | |
683 | ||
684 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
685 | if (ret) | |
686 | return ret; | |
4bf21fa4 BP |
687 | } |
688 | return 0; | |
689 | } | |
690 | ||
0a85b6f0 MT |
691 | static int usbdux_ai_cmdtest(struct comedi_device *dev, |
692 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
4bf21fa4 | 693 | { |
40f1a5ab | 694 | struct usbdux_private *this_usbduxsub = dev->private; |
27020ffe | 695 | int err = 0, i; |
b74e5f56 | 696 | unsigned int tmp_timer; |
4274ea02 | 697 | |
27020ffe | 698 | /* Step 1 : check if triggers are trivially valid */ |
4bf21fa4 | 699 | |
27020ffe HS |
700 | err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT); |
701 | err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER); | |
702 | err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW); | |
703 | err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); | |
704 | err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); | |
4bf21fa4 BP |
705 | |
706 | if (err) | |
707 | return 1; | |
708 | ||
27020ffe HS |
709 | /* Step 2a : make sure trigger sources are unique */ |
710 | ||
711 | err |= cfc_check_trigger_is_unique(cmd->start_src); | |
712 | err |= cfc_check_trigger_is_unique(cmd->stop_src); | |
713 | ||
714 | /* Step 2b : and mutually compatible */ | |
4bf21fa4 BP |
715 | |
716 | if (err) | |
717 | return 2; | |
718 | ||
f4d36c7a | 719 | /* Step 3: check if arguments are trivially valid */ |
4bf21fa4 | 720 | |
f4d36c7a HS |
721 | err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); |
722 | ||
723 | if (cmd->scan_begin_src == TRIG_FOLLOW) /* internal trigger */ | |
724 | err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0); | |
4bf21fa4 BP |
725 | |
726 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
727 | if (this_usbduxsub->high_speed) { | |
e54fb9c1 GKH |
728 | /* |
729 | * In high speed mode microframes are possible. | |
730 | * However, during one microframe we can roughly | |
731 | * sample one channel. Thus, the more channels | |
732 | * are in the channel list the more time we need. | |
733 | */ | |
4bf21fa4 | 734 | i = 1; |
e54fb9c1 | 735 | /* find a power of 2 for the number of channels */ |
4274ea02 | 736 | while (i < (cmd->chanlist_len)) |
4bf21fa4 | 737 | i = i * 2; |
4274ea02 | 738 | |
f4d36c7a HS |
739 | err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, |
740 | 1000000 / 8 * i); | |
e54fb9c1 GKH |
741 | /* now calc the real sampling rate with all the |
742 | * rounding errors */ | |
b74e5f56 | 743 | tmp_timer = |
0a85b6f0 MT |
744 | ((unsigned int)(cmd->scan_begin_arg / 125000)) * |
745 | 125000; | |
e54fb9c1 GKH |
746 | } else { |
747 | /* full speed */ | |
748 | /* 1kHz scans every USB frame */ | |
f4d36c7a HS |
749 | err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, |
750 | 1000000); | |
4274ea02 GKH |
751 | /* |
752 | * calc the real sampling rate with the rounding errors | |
753 | */ | |
b74e5f56 | 754 | tmp_timer = ((unsigned int)(cmd->scan_begin_arg / |
0a85b6f0 | 755 | 1000000)) * 1000000; |
4bf21fa4 | 756 | } |
f4d36c7a | 757 | err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, |
b74e5f56 | 758 | tmp_timer); |
4bf21fa4 BP |
759 | } |
760 | ||
f4d36c7a HS |
761 | err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); |
762 | ||
4bf21fa4 BP |
763 | if (cmd->stop_src == TRIG_COUNT) { |
764 | /* any count is allowed */ | |
765 | } else { | |
766 | /* TRIG_NONE */ | |
f4d36c7a | 767 | err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); |
4bf21fa4 BP |
768 | } |
769 | ||
770 | if (err) | |
771 | return 3; | |
772 | ||
773 | return 0; | |
774 | } | |
775 | ||
e54fb9c1 GKH |
776 | /* |
777 | * creates the ADC command for the MAX1271 | |
778 | * range is the range value from comedi | |
779 | */ | |
4bf21fa4 BP |
780 | static int8_t create_adc_command(unsigned int chan, int range) |
781 | { | |
782 | int8_t p = (range <= 1); | |
783 | int8_t r = ((range % 2) == 0); | |
784 | return (chan << 4) | ((p == 1) << 2) | ((r == 1) << 3); | |
785 | } | |
786 | ||
e54fb9c1 | 787 | /* bulk transfers to usbdux */ |
4bf21fa4 BP |
788 | |
789 | #define SENDADCOMMANDS 0 | |
790 | #define SENDDACOMMANDS 1 | |
791 | #define SENDDIOCONFIGCOMMAND 2 | |
792 | #define SENDDIOBITSCOMMAND 3 | |
793 | #define SENDSINGLEAD 4 | |
794 | #define READCOUNTERCOMMAND 5 | |
795 | #define WRITECOUNTERCOMMAND 6 | |
796 | #define SENDPWMON 7 | |
797 | #define SENDPWMOFF 8 | |
798 | ||
49cc49dd | 799 | static int send_dux_commands(struct comedi_device *dev, int cmd_type) |
4bf21fa4 | 800 | { |
0b20d613 | 801 | struct usb_device *usb = comedi_to_usb_dev(dev); |
49cc49dd | 802 | struct usbdux_private *devpriv = dev->private; |
91aa6b21 | 803 | int nsent; |
4bf21fa4 | 804 | |
49cc49dd | 805 | devpriv->dux_commands[0] = cmd_type; |
91aa6b21 | 806 | |
49cc49dd HS |
807 | return usb_bulk_msg(usb, usb_sndbulkpipe(usb, COMMAND_OUT_EP), |
808 | devpriv->dux_commands, SIZEOFDUXBUFFER, | |
91aa6b21 | 809 | &nsent, BULK_TIMEOUT); |
4bf21fa4 BP |
810 | } |
811 | ||
fb908568 | 812 | static int receive_dux_commands(struct comedi_device *dev, int command) |
4bf21fa4 | 813 | { |
0b20d613 | 814 | struct usb_device *usb = comedi_to_usb_dev(dev); |
fb908568 | 815 | struct usbdux_private *devpriv = dev->private; |
fb908568 | 816 | int ret; |
4bf21fa4 BP |
817 | int nrec; |
818 | int i; | |
819 | ||
820 | for (i = 0; i < RETRIES; i++) { | |
fb908568 HS |
821 | ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, COMMAND_IN_EP), |
822 | devpriv->insn_buffer, SIZEINSNBUF, | |
ea25371a | 823 | &nrec, BULK_TIMEOUT); |
fb908568 HS |
824 | if (ret < 0) |
825 | return ret; | |
826 | if (le16_to_cpu(devpriv->insn_buffer[0]) == command) | |
827 | return ret; | |
4bf21fa4 | 828 | } |
fb908568 | 829 | /* command not received */ |
4bf21fa4 BP |
830 | return -EFAULT; |
831 | } | |
832 | ||
0a85b6f0 | 833 | static int usbdux_ai_inttrig(struct comedi_device *dev, |
e5cb2f94 HS |
834 | struct comedi_subdevice *s, |
835 | unsigned int trignum) | |
4bf21fa4 | 836 | { |
e5cb2f94 HS |
837 | struct usbdux_private *devpriv = dev->private; |
838 | int ret = -EINVAL; | |
4274ea02 | 839 | |
e5cb2f94 | 840 | down(&devpriv->sem); |
4bf21fa4 | 841 | |
e5cb2f94 HS |
842 | if (trignum != 0) |
843 | goto ai_trig_exit; | |
844 | ||
845 | if (!devpriv->ai_cmd_running) { | |
846 | devpriv->ai_cmd_running = 1; | |
865d9eed | 847 | ret = usbduxsub_submit_inurbs(dev); |
4bf21fa4 | 848 | if (ret < 0) { |
e5cb2f94 HS |
849 | devpriv->ai_cmd_running = 0; |
850 | goto ai_trig_exit; | |
4bf21fa4 BP |
851 | } |
852 | s->async->inttrig = NULL; | |
e5cb2f94 HS |
853 | } else { |
854 | ret = -EBUSY; | |
4bf21fa4 | 855 | } |
e5cb2f94 HS |
856 | |
857 | ai_trig_exit: | |
858 | up(&devpriv->sem); | |
859 | return ret; | |
4bf21fa4 BP |
860 | } |
861 | ||
34c43922 | 862 | static int usbdux_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
4bf21fa4 | 863 | { |
9a79dfce | 864 | struct usbdux_private *devpriv = dev->private; |
ea6d0d4c | 865 | struct comedi_cmd *cmd = &s->async->cmd; |
9a79dfce HS |
866 | int len = cmd->chanlist_len; |
867 | int ret = -EBUSY; | |
868 | int i; | |
8fa07567 GKH |
869 | |
870 | /* block other CPUs from starting an ai_cmd */ | |
9a79dfce HS |
871 | down(&devpriv->sem); |
872 | ||
873 | if (devpriv->ai_cmd_running) | |
874 | goto ai_cmd_exit; | |
875 | ||
25985edc | 876 | /* set current channel of the running acquisition to zero */ |
4bf21fa4 BP |
877 | s->async->cur_chan = 0; |
878 | ||
9a79dfce HS |
879 | devpriv->dux_commands[1] = len; |
880 | for (i = 0; i < len; ++i) { | |
881 | unsigned int chan = CR_CHAN(cmd->chanlist[i]); | |
882 | unsigned int range = CR_RANGE(cmd->chanlist[i]); | |
883 | ||
91aa6b21 | 884 | if (i >= NUMCHANNELS) |
4bf21fa4 | 885 | break; |
4bf21fa4 | 886 | |
9a79dfce | 887 | devpriv->dux_commands[i + 2] = create_adc_command(chan, range); |
4bf21fa4 BP |
888 | } |
889 | ||
9a79dfce HS |
890 | ret = send_dux_commands(dev, SENDADCOMMANDS); |
891 | if (ret < 0) | |
892 | goto ai_cmd_exit; | |
893 | ||
894 | if (devpriv->high_speed) { | |
8fa07567 GKH |
895 | /* |
896 | * every channel gets a time window of 125us. Thus, if we | |
897 | * sample all 8 channels we need 1ms. If we sample only one | |
898 | * channel we need only 125us | |
899 | */ | |
9a79dfce | 900 | devpriv->ai_interval = 1; |
8fa07567 | 901 | /* find a power of 2 for the interval */ |
9a79dfce HS |
902 | while (devpriv->ai_interval < len) |
903 | devpriv->ai_interval *= 2; | |
904 | ||
905 | devpriv->ai_timer = cmd->scan_begin_arg / | |
906 | (125000 * devpriv->ai_interval); | |
4bf21fa4 | 907 | } else { |
8fa07567 | 908 | /* interval always 1ms */ |
9a79dfce HS |
909 | devpriv->ai_interval = 1; |
910 | devpriv->ai_timer = cmd->scan_begin_arg / 1000000; | |
4bf21fa4 | 911 | } |
9a79dfce HS |
912 | if (devpriv->ai_timer < 1) { |
913 | ret = -EINVAL; | |
914 | goto ai_cmd_exit; | |
4bf21fa4 | 915 | } |
9a79dfce HS |
916 | |
917 | devpriv->ai_counter = devpriv->ai_timer; | |
4bf21fa4 BP |
918 | |
919 | if (cmd->stop_src == TRIG_COUNT) { | |
e54fb9c1 | 920 | /* data arrives as one packet */ |
9a79dfce HS |
921 | devpriv->ai_sample_count = cmd->stop_arg; |
922 | devpriv->ai_continous = 0; | |
4bf21fa4 | 923 | } else { |
25985edc | 924 | /* continous acquisition */ |
9a79dfce HS |
925 | devpriv->ai_continous = 1; |
926 | devpriv->ai_sample_count = 0; | |
4bf21fa4 BP |
927 | } |
928 | ||
929 | if (cmd->start_src == TRIG_NOW) { | |
e54fb9c1 | 930 | /* enable this acquisition operation */ |
9a79dfce | 931 | devpriv->ai_cmd_running = 1; |
865d9eed | 932 | ret = usbduxsub_submit_inurbs(dev); |
4bf21fa4 | 933 | if (ret < 0) { |
9a79dfce | 934 | devpriv->ai_cmd_running = 0; |
e54fb9c1 | 935 | /* fixme: unlink here?? */ |
9a79dfce | 936 | goto ai_cmd_exit; |
4bf21fa4 BP |
937 | } |
938 | s->async->inttrig = NULL; | |
939 | } else { | |
940 | /* TRIG_INT */ | |
e54fb9c1 GKH |
941 | /* don't enable the acquision operation */ |
942 | /* wait for an internal signal */ | |
4bf21fa4 BP |
943 | s->async->inttrig = usbdux_ai_inttrig; |
944 | } | |
9a79dfce HS |
945 | |
946 | ai_cmd_exit: | |
947 | up(&devpriv->sem); | |
948 | ||
949 | return ret; | |
4bf21fa4 BP |
950 | } |
951 | ||
952 | /* Mode 0 is used to get a single conversion on demand */ | |
0a85b6f0 MT |
953 | static int usbdux_ai_insn_read(struct comedi_device *dev, |
954 | struct comedi_subdevice *s, | |
a79b4cdb HS |
955 | struct comedi_insn *insn, |
956 | unsigned int *data) | |
4bf21fa4 | 957 | { |
a79b4cdb HS |
958 | struct usbdux_private *devpriv = dev->private; |
959 | unsigned int chan = CR_CHAN(insn->chanspec); | |
960 | unsigned int range = CR_RANGE(insn->chanspec); | |
961 | unsigned int val; | |
962 | int ret = -EBUSY; | |
4bf21fa4 | 963 | int i; |
4bf21fa4 | 964 | |
a79b4cdb | 965 | down(&devpriv->sem); |
c0e0c26e | 966 | |
a79b4cdb HS |
967 | if (devpriv->ai_cmd_running) |
968 | goto ai_read_exit; | |
4bf21fa4 | 969 | |
e54fb9c1 | 970 | /* set command for the first channel */ |
a79b4cdb | 971 | devpriv->dux_commands[1] = create_adc_command(chan, range); |
4bf21fa4 | 972 | |
e54fb9c1 | 973 | /* adc commands */ |
a79b4cdb HS |
974 | ret = send_dux_commands(dev, SENDSINGLEAD); |
975 | if (ret < 0) | |
976 | goto ai_read_exit; | |
4bf21fa4 BP |
977 | |
978 | for (i = 0; i < insn->n; i++) { | |
a79b4cdb HS |
979 | ret = receive_dux_commands(dev, SENDSINGLEAD); |
980 | if (ret < 0) | |
981 | goto ai_read_exit; | |
982 | ||
983 | val = le16_to_cpu(devpriv->insn_buffer[1]); | |
91891f7c HS |
984 | |
985 | /* bipolar data is two's-complement */ | |
986 | if (comedi_range_is_bipolar(s, range)) | |
987 | val ^= ((s->maxdata + 1) >> 1); | |
8fa07567 | 988 | |
a79b4cdb | 989 | data[i] = val; |
4bf21fa4 | 990 | } |
a79b4cdb HS |
991 | |
992 | ai_read_exit: | |
993 | up(&devpriv->sem); | |
994 | ||
995 | return ret ? ret : insn->n; | |
4bf21fa4 BP |
996 | } |
997 | ||
0a85b6f0 MT |
998 | static int usbdux_ao_insn_read(struct comedi_device *dev, |
999 | struct comedi_subdevice *s, | |
818782c8 HS |
1000 | struct comedi_insn *insn, |
1001 | unsigned int *data) | |
4bf21fa4 | 1002 | { |
818782c8 HS |
1003 | struct usbdux_private *devpriv = dev->private; |
1004 | unsigned int chan = CR_CHAN(insn->chanspec); | |
4bf21fa4 | 1005 | int i; |
4bf21fa4 | 1006 | |
818782c8 | 1007 | down(&devpriv->sem); |
8fa07567 | 1008 | for (i = 0; i < insn->n; i++) |
818782c8 HS |
1009 | data[i] = devpriv->out_buffer[chan]; |
1010 | up(&devpriv->sem); | |
8fa07567 | 1011 | |
818782c8 | 1012 | return insn->n; |
4bf21fa4 BP |
1013 | } |
1014 | ||
0a85b6f0 MT |
1015 | static int usbdux_ao_insn_write(struct comedi_device *dev, |
1016 | struct comedi_subdevice *s, | |
37c1d1ec HS |
1017 | struct comedi_insn *insn, |
1018 | unsigned int *data) | |
4bf21fa4 | 1019 | { |
37c1d1ec HS |
1020 | struct usbdux_private *devpriv = dev->private; |
1021 | unsigned int chan = CR_CHAN(insn->chanspec); | |
1022 | unsigned int val = devpriv->out_buffer[chan]; | |
1023 | int16_t *p = (int16_t *)&devpriv->dux_commands[2]; | |
1024 | int ret = -EBUSY; | |
1025 | int i; | |
4bf21fa4 | 1026 | |
37c1d1ec | 1027 | down(&devpriv->sem); |
8fa07567 | 1028 | |
37c1d1ec HS |
1029 | if (devpriv->ao_cmd_running) |
1030 | goto ao_write_exit; | |
1031 | ||
1032 | /* number of channels: 1 */ | |
1033 | devpriv->dux_commands[1] = 1; | |
1034 | /* channel number */ | |
1035 | devpriv->dux_commands[4] = chan << 6; | |
4bf21fa4 BP |
1036 | |
1037 | for (i = 0; i < insn->n; i++) { | |
37c1d1ec HS |
1038 | val = data[i]; |
1039 | ||
e54fb9c1 | 1040 | /* one 16 bit value */ |
37c1d1ec HS |
1041 | *p = cpu_to_le16(val); |
1042 | ||
1043 | ret = send_dux_commands(dev, SENDDACOMMANDS); | |
1044 | if (ret < 0) | |
1045 | goto ao_write_exit; | |
4bf21fa4 | 1046 | } |
37c1d1ec | 1047 | devpriv->out_buffer[chan] = val; |
4bf21fa4 | 1048 | |
37c1d1ec HS |
1049 | ao_write_exit: |
1050 | up(&devpriv->sem); | |
1051 | ||
1052 | return ret ? ret : insn->n; | |
4bf21fa4 BP |
1053 | } |
1054 | ||
0a85b6f0 | 1055 | static int usbdux_ao_inttrig(struct comedi_device *dev, |
f994282d HS |
1056 | struct comedi_subdevice *s, |
1057 | unsigned int trignum) | |
4bf21fa4 | 1058 | { |
f994282d HS |
1059 | struct usbdux_private *devpriv = dev->private; |
1060 | int ret = -EINVAL; | |
4bf21fa4 | 1061 | |
f994282d | 1062 | down(&devpriv->sem); |
8fa07567 | 1063 | |
f994282d HS |
1064 | if (trignum != 0) |
1065 | goto ao_trig_exit; | |
1066 | ||
1067 | if (!devpriv->ao_cmd_running) { | |
1068 | devpriv->ao_cmd_running = 1; | |
6754698b | 1069 | ret = usbduxsub_submit_outurbs(dev); |
4bf21fa4 | 1070 | if (ret < 0) { |
f994282d HS |
1071 | devpriv->ao_cmd_running = 0; |
1072 | goto ao_trig_exit; | |
4bf21fa4 BP |
1073 | } |
1074 | s->async->inttrig = NULL; | |
f994282d HS |
1075 | } else { |
1076 | ret = -EBUSY; | |
4bf21fa4 | 1077 | } |
f994282d HS |
1078 | |
1079 | ao_trig_exit: | |
1080 | up(&devpriv->sem); | |
1081 | return ret; | |
4bf21fa4 BP |
1082 | } |
1083 | ||
0a85b6f0 MT |
1084 | static int usbdux_ao_cmdtest(struct comedi_device *dev, |
1085 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
4bf21fa4 | 1086 | { |
40f1a5ab | 1087 | struct usbdux_private *this_usbduxsub = dev->private; |
27020ffe HS |
1088 | int err = 0; |
1089 | unsigned int flags; | |
4bf21fa4 | 1090 | |
8fa07567 | 1091 | if (!this_usbduxsub) |
4bf21fa4 | 1092 | return -EFAULT; |
8fa07567 | 1093 | |
27020ffe HS |
1094 | /* Step 1 : check if triggers are trivially valid */ |
1095 | ||
1096 | err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT); | |
4bf21fa4 | 1097 | |
4bf21fa4 | 1098 | if (0) { /* (this_usbduxsub->high_speed) */ |
e54fb9c1 | 1099 | /* the sampling rate is set by the coversion rate */ |
27020ffe | 1100 | flags = TRIG_FOLLOW; |
4bf21fa4 | 1101 | } else { |
e54fb9c1 | 1102 | /* start a new scan (output at once) with a timer */ |
27020ffe | 1103 | flags = TRIG_TIMER; |
4bf21fa4 | 1104 | } |
27020ffe | 1105 | err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags); |
4bf21fa4 | 1106 | |
4bf21fa4 | 1107 | if (0) { /* (this_usbduxsub->high_speed) */ |
4274ea02 | 1108 | /* |
27020ffe HS |
1109 | * in usb-2.0 only one conversion it transmitted |
1110 | * but with 8kHz/n | |
4274ea02 | 1111 | */ |
27020ffe | 1112 | flags = TRIG_TIMER; |
4bf21fa4 | 1113 | } else { |
27020ffe HS |
1114 | /* |
1115 | * all conversion events happen simultaneously with | |
1116 | * a rate of 1kHz/n | |
1117 | */ | |
1118 | flags = TRIG_NOW; | |
4bf21fa4 | 1119 | } |
27020ffe | 1120 | err |= cfc_check_trigger_src(&cmd->convert_src, flags); |
4bf21fa4 | 1121 | |
27020ffe HS |
1122 | err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); |
1123 | err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); | |
4bf21fa4 BP |
1124 | |
1125 | if (err) | |
1126 | return 1; | |
1127 | ||
27020ffe HS |
1128 | /* Step 2a : make sure trigger sources are unique */ |
1129 | ||
1130 | err |= cfc_check_trigger_is_unique(cmd->start_src); | |
1131 | err |= cfc_check_trigger_is_unique(cmd->stop_src); | |
1132 | ||
1133 | /* Step 2b : and mutually compatible */ | |
4bf21fa4 BP |
1134 | |
1135 | if (err) | |
1136 | return 2; | |
1137 | ||
f4d36c7a | 1138 | /* Step 3: check if arguments are trivially valid */ |
4bf21fa4 | 1139 | |
f4d36c7a | 1140 | err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); |
4bf21fa4 | 1141 | |
f4d36c7a HS |
1142 | if (cmd->scan_begin_src == TRIG_FOLLOW) /* internal trigger */ |
1143 | err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0); | |
1144 | ||
1145 | if (cmd->scan_begin_src == TRIG_TIMER) | |
1146 | err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, | |
1147 | 1000000); | |
4bf21fa4 | 1148 | |
e54fb9c1 | 1149 | /* not used now, is for later use */ |
f4d36c7a HS |
1150 | if (cmd->convert_src == TRIG_TIMER) |
1151 | err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 125000); | |
4bf21fa4 | 1152 | |
f4d36c7a | 1153 | err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); |
4bf21fa4 BP |
1154 | |
1155 | if (cmd->stop_src == TRIG_COUNT) { | |
1156 | /* any count is allowed */ | |
1157 | } else { | |
1158 | /* TRIG_NONE */ | |
f4d36c7a | 1159 | err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); |
4bf21fa4 BP |
1160 | } |
1161 | ||
4bf21fa4 BP |
1162 | if (err) |
1163 | return 3; | |
1164 | ||
1165 | return 0; | |
1166 | } | |
1167 | ||
34c43922 | 1168 | static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
4bf21fa4 | 1169 | { |
2a226948 | 1170 | struct usbdux_private *devpriv = dev->private; |
ea6d0d4c | 1171 | struct comedi_cmd *cmd = &s->async->cmd; |
2a226948 HS |
1172 | int ret = -EBUSY; |
1173 | int i; | |
4bf21fa4 | 1174 | |
2a226948 | 1175 | down(&devpriv->sem); |
8fa07567 | 1176 | |
2a226948 HS |
1177 | if (devpriv->ao_cmd_running) |
1178 | goto ao_cmd_exit; | |
4bf21fa4 | 1179 | |
25985edc | 1180 | /* set current channel of the running acquisition to zero */ |
4bf21fa4 | 1181 | s->async->cur_chan = 0; |
2a226948 | 1182 | |
4bf21fa4 | 1183 | for (i = 0; i < cmd->chanlist_len; ++i) { |
2a226948 HS |
1184 | unsigned int chan = CR_CHAN(cmd->chanlist[i]); |
1185 | ||
91aa6b21 | 1186 | if (i >= NUMOUTCHANNELS) |
4bf21fa4 | 1187 | break; |
2a226948 HS |
1188 | |
1189 | devpriv->dac_commands[i] = chan << 6; | |
4bf21fa4 BP |
1190 | } |
1191 | ||
e54fb9c1 GKH |
1192 | /* we count in steps of 1ms (125us) */ |
1193 | /* 125us mode not used yet */ | |
2a226948 | 1194 | if (0) { /* (devpriv->high_speed) */ |
e54fb9c1 GKH |
1195 | /* 125us */ |
1196 | /* timing of the conversion itself: every 125 us */ | |
2a226948 | 1197 | devpriv->ao_timer = cmd->convert_arg / 125000; |
4bf21fa4 | 1198 | } else { |
e54fb9c1 GKH |
1199 | /* 1ms */ |
1200 | /* timing of the scan: we get all channels at once */ | |
2a226948 HS |
1201 | devpriv->ao_timer = cmd->scan_begin_arg / 1000000; |
1202 | if (devpriv->ao_timer < 1) { | |
1203 | ret = -EINVAL; | |
1204 | goto ao_cmd_exit; | |
4bf21fa4 BP |
1205 | } |
1206 | } | |
2a226948 HS |
1207 | |
1208 | devpriv->ao_counter = devpriv->ao_timer; | |
4bf21fa4 BP |
1209 | |
1210 | if (cmd->stop_src == TRIG_COUNT) { | |
25985edc | 1211 | /* not continuous */ |
e54fb9c1 GKH |
1212 | /* counter */ |
1213 | /* high speed also scans everything at once */ | |
2a226948 HS |
1214 | if (0) { /* (devpriv->high_speed) */ |
1215 | devpriv->ao_sample_count = cmd->stop_arg * | |
1216 | cmd->scan_end_arg; | |
4bf21fa4 | 1217 | } else { |
e54fb9c1 GKH |
1218 | /* there's no scan as the scan has been */ |
1219 | /* perf inside the FX2 */ | |
1220 | /* data arrives as one packet */ | |
2a226948 | 1221 | devpriv->ao_sample_count = cmd->stop_arg; |
4bf21fa4 | 1222 | } |
2a226948 | 1223 | devpriv->ao_continous = 0; |
4bf21fa4 | 1224 | } else { |
25985edc | 1225 | /* continous acquisition */ |
2a226948 HS |
1226 | devpriv->ao_continous = 1; |
1227 | devpriv->ao_sample_count = 0; | |
4bf21fa4 BP |
1228 | } |
1229 | ||
1230 | if (cmd->start_src == TRIG_NOW) { | |
e54fb9c1 | 1231 | /* enable this acquisition operation */ |
2a226948 | 1232 | devpriv->ao_cmd_running = 1; |
6754698b | 1233 | ret = usbduxsub_submit_outurbs(dev); |
4bf21fa4 | 1234 | if (ret < 0) { |
2a226948 | 1235 | devpriv->ao_cmd_running = 0; |
e54fb9c1 | 1236 | /* fixme: unlink here?? */ |
2a226948 | 1237 | goto ao_cmd_exit; |
4bf21fa4 BP |
1238 | } |
1239 | s->async->inttrig = NULL; | |
1240 | } else { | |
1241 | /* TRIG_INT */ | |
e54fb9c1 GKH |
1242 | /* submit the urbs later */ |
1243 | /* wait for an internal signal */ | |
4bf21fa4 BP |
1244 | s->async->inttrig = usbdux_ao_inttrig; |
1245 | } | |
1246 | ||
2a226948 HS |
1247 | ao_cmd_exit: |
1248 | up(&devpriv->sem); | |
1249 | ||
1250 | return ret; | |
4bf21fa4 BP |
1251 | } |
1252 | ||
0a85b6f0 MT |
1253 | static int usbdux_dio_insn_config(struct comedi_device *dev, |
1254 | struct comedi_subdevice *s, | |
fc110df6 HS |
1255 | struct comedi_insn *insn, |
1256 | unsigned int *data) | |
4bf21fa4 | 1257 | { |
fc110df6 | 1258 | unsigned int mask = 1 << CR_CHAN(insn->chanspec); |
4bf21fa4 BP |
1259 | |
1260 | switch (data[0]) { | |
1261 | case INSN_CONFIG_DIO_OUTPUT: | |
fc110df6 | 1262 | s->io_bits |= mask; |
4bf21fa4 BP |
1263 | break; |
1264 | case INSN_CONFIG_DIO_INPUT: | |
fc110df6 | 1265 | s->io_bits &= ~mask; |
4bf21fa4 BP |
1266 | break; |
1267 | case INSN_CONFIG_DIO_QUERY: | |
fc110df6 | 1268 | data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT; |
4bf21fa4 BP |
1269 | break; |
1270 | default: | |
1271 | return -EINVAL; | |
1272 | break; | |
1273 | } | |
fc110df6 HS |
1274 | |
1275 | /* | |
1276 | * We don't tell the firmware here as it would take 8 frames | |
1277 | * to submit the information. We do it in the insn_bits. | |
1278 | */ | |
4bf21fa4 BP |
1279 | return insn->n; |
1280 | } | |
1281 | ||
0a85b6f0 MT |
1282 | static int usbdux_dio_insn_bits(struct comedi_device *dev, |
1283 | struct comedi_subdevice *s, | |
81a9bdaa HS |
1284 | struct comedi_insn *insn, |
1285 | unsigned int *data) | |
4bf21fa4 BP |
1286 | { |
1287 | ||
81a9bdaa HS |
1288 | struct usbdux_private *devpriv = dev->private; |
1289 | unsigned int mask = data[0]; | |
1290 | unsigned int bits = data[1]; | |
1291 | int ret; | |
4bf21fa4 | 1292 | |
81a9bdaa | 1293 | down(&devpriv->sem); |
8fa07567 | 1294 | |
81a9bdaa HS |
1295 | s->state &= ~mask; |
1296 | s->state |= (bits & mask); | |
4bf21fa4 | 1297 | |
81a9bdaa HS |
1298 | devpriv->dux_commands[1] = s->io_bits; |
1299 | devpriv->dux_commands[2] = s->state; | |
4bf21fa4 | 1300 | |
81a9bdaa HS |
1301 | /* |
1302 | * This command also tells the firmware to return | |
1303 | * the digital input lines. | |
1304 | */ | |
1305 | ret = send_dux_commands(dev, SENDDIOBITSCOMMAND); | |
1306 | if (ret < 0) | |
1307 | goto dio_exit; | |
1308 | ret = receive_dux_commands(dev, SENDDIOBITSCOMMAND); | |
1309 | if (ret < 0) | |
1310 | goto dio_exit; | |
4bf21fa4 | 1311 | |
81a9bdaa HS |
1312 | data[1] = le16_to_cpu(devpriv->insn_buffer[1]); |
1313 | ||
1314 | dio_exit: | |
1315 | up(&devpriv->sem); | |
1316 | ||
1317 | return ret ? ret : insn->n; | |
4bf21fa4 BP |
1318 | } |
1319 | ||
0a85b6f0 MT |
1320 | static int usbdux_counter_read(struct comedi_device *dev, |
1321 | struct comedi_subdevice *s, | |
48967d4f HS |
1322 | struct comedi_insn *insn, |
1323 | unsigned int *data) | |
4bf21fa4 | 1324 | { |
48967d4f HS |
1325 | struct usbdux_private *devpriv = dev->private; |
1326 | unsigned int chan = CR_CHAN(insn->chanspec); | |
1327 | int ret = 0; | |
1328 | int i; | |
4bf21fa4 | 1329 | |
48967d4f | 1330 | down(&devpriv->sem); |
4bf21fa4 | 1331 | |
48967d4f HS |
1332 | for (i = 0; i < insn->n; i++) { |
1333 | ret = send_dux_commands(dev, READCOUNTERCOMMAND); | |
1334 | if (ret < 0) | |
1335 | goto counter_read_exit; | |
1336 | ret = receive_dux_commands(dev, READCOUNTERCOMMAND); | |
1337 | if (ret < 0) | |
1338 | goto counter_read_exit; | |
4bf21fa4 | 1339 | |
48967d4f | 1340 | data[i] = le16_to_cpu(devpriv->insn_buffer[chan + 1]); |
4bf21fa4 BP |
1341 | } |
1342 | ||
48967d4f HS |
1343 | counter_read_exit: |
1344 | up(&devpriv->sem); | |
1345 | ||
1346 | return ret ? ret : insn->n; | |
4bf21fa4 BP |
1347 | } |
1348 | ||
0a85b6f0 MT |
1349 | static int usbdux_counter_write(struct comedi_device *dev, |
1350 | struct comedi_subdevice *s, | |
f2929618 HS |
1351 | struct comedi_insn *insn, |
1352 | unsigned int *data) | |
4bf21fa4 | 1353 | { |
f2929618 HS |
1354 | struct usbdux_private *devpriv = dev->private; |
1355 | unsigned int chan = CR_CHAN(insn->chanspec); | |
1356 | int16_t *p = (int16_t *)&devpriv->dux_commands[2]; | |
1357 | int ret = 0; | |
1358 | int i; | |
4bf21fa4 | 1359 | |
f2929618 | 1360 | down(&devpriv->sem); |
4bf21fa4 | 1361 | |
f2929618 HS |
1362 | devpriv->dux_commands[1] = chan; |
1363 | ||
1364 | for (i = 0; i < insn->n; i++) { | |
1365 | *p = cpu_to_le16(data[i]); | |
4bf21fa4 | 1366 | |
f2929618 HS |
1367 | ret = send_dux_commands(dev, WRITECOUNTERCOMMAND); |
1368 | if (ret < 0) | |
1369 | break; | |
4bf21fa4 BP |
1370 | } |
1371 | ||
f2929618 | 1372 | up(&devpriv->sem); |
4bf21fa4 | 1373 | |
f2929618 | 1374 | return ret ? ret : insn->n; |
4bf21fa4 BP |
1375 | } |
1376 | ||
0a85b6f0 MT |
1377 | static int usbdux_counter_config(struct comedi_device *dev, |
1378 | struct comedi_subdevice *s, | |
90035c08 | 1379 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1380 | { |
e54fb9c1 | 1381 | /* nothing to do so far */ |
4bf21fa4 BP |
1382 | return 2; |
1383 | } | |
1384 | ||
3c50bbb7 | 1385 | static void usbduxsub_unlink_pwm_urbs(struct comedi_device *dev) |
4bf21fa4 | 1386 | { |
3c50bbb7 | 1387 | struct usbdux_private *devpriv = dev->private; |
4bf21fa4 | 1388 | |
3c50bbb7 | 1389 | usb_kill_urb(devpriv->urb_pwm); |
4bf21fa4 BP |
1390 | } |
1391 | ||
3c50bbb7 | 1392 | static void usbdux_pwm_stop(struct comedi_device *dev, int do_unlink) |
4bf21fa4 | 1393 | { |
38f06835 | 1394 | struct usbdux_private *devpriv = dev->private; |
4bf21fa4 | 1395 | |
8fa07567 | 1396 | if (do_unlink) |
3c50bbb7 | 1397 | usbduxsub_unlink_pwm_urbs(dev); |
8fa07567 | 1398 | |
38f06835 | 1399 | devpriv->pwm_cmd_running = 0; |
4bf21fa4 BP |
1400 | } |
1401 | ||
0a85b6f0 MT |
1402 | static int usbdux_pwm_cancel(struct comedi_device *dev, |
1403 | struct comedi_subdevice *s) | |
4bf21fa4 | 1404 | { |
96ca3704 HS |
1405 | struct usbdux_private *devpriv = dev->private; |
1406 | int ret; | |
1407 | ||
1408 | down(&devpriv->sem); | |
8fa07567 | 1409 | /* unlink only if it is really running */ |
3c50bbb7 | 1410 | usbdux_pwm_stop(dev, devpriv->pwm_cmd_running); |
96ca3704 | 1411 | ret = send_dux_commands(dev, SENDPWMOFF); |
96ca3704 HS |
1412 | up(&devpriv->sem); |
1413 | ||
1414 | return ret; | |
4bf21fa4 BP |
1415 | } |
1416 | ||
4bf21fa4 BP |
1417 | static void usbduxsub_pwm_irq(struct urb *urb) |
1418 | { | |
c9f3363a HS |
1419 | struct comedi_device *dev = urb->context; |
1420 | struct usbdux_private *devpriv = dev->private; | |
4bf21fa4 | 1421 | int ret; |
4bf21fa4 BP |
1422 | |
1423 | switch (urb->status) { | |
1424 | case 0: | |
1425 | /* success */ | |
1426 | break; | |
1427 | ||
4bf21fa4 BP |
1428 | case -ECONNRESET: |
1429 | case -ENOENT: | |
1430 | case -ESHUTDOWN: | |
1431 | case -ECONNABORTED: | |
8fa07567 GKH |
1432 | /* |
1433 | * after an unlink command, unplug, ... etc | |
1434 | * no unlink needed here. Already shutting down. | |
1435 | */ | |
c9f3363a | 1436 | if (devpriv->pwm_cmd_running) |
38f06835 | 1437 | usbdux_pwm_stop(dev, 0); |
8fa07567 | 1438 | |
4bf21fa4 BP |
1439 | return; |
1440 | ||
4bf21fa4 | 1441 | default: |
8fa07567 | 1442 | /* a real error */ |
c9f3363a HS |
1443 | if (devpriv->pwm_cmd_running) { |
1444 | dev_err(dev->class_dev, | |
1445 | "Non-zero urb status received in pwm intr context: %d\n", | |
1446 | urb->status); | |
38f06835 | 1447 | usbdux_pwm_stop(dev, 0); |
4bf21fa4 BP |
1448 | } |
1449 | return; | |
1450 | } | |
1451 | ||
8fa07567 | 1452 | /* are we actually running? */ |
c9f3363a | 1453 | if (!devpriv->pwm_cmd_running) |
4bf21fa4 | 1454 | return; |
4bf21fa4 | 1455 | |
c9f3363a | 1456 | urb->transfer_buffer_length = devpriv->size_pwm_buf; |
0b20d613 | 1457 | urb->dev = comedi_to_usb_dev(dev); |
4bf21fa4 | 1458 | urb->status = 0; |
c9f3363a | 1459 | if (devpriv->pwm_cmd_running) { |
4aa3a823 | 1460 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
4274ea02 | 1461 | if (ret < 0) { |
c9f3363a HS |
1462 | dev_err(dev->class_dev, |
1463 | "pwm urb resubm failed in int-cont. ret=%d", | |
1464 | ret); | |
8fa07567 | 1465 | if (ret == EL2NSYNC) |
c9f3363a HS |
1466 | dev_err(dev->class_dev, |
1467 | "buggy USB host controller or bug in IRQ handling!\n"); | |
8fa07567 GKH |
1468 | |
1469 | /* don't do an unlink here */ | |
38f06835 | 1470 | usbdux_pwm_stop(dev, 0); |
4bf21fa4 BP |
1471 | } |
1472 | } | |
1473 | } | |
1474 | ||
5a80fa04 | 1475 | static int usbduxsub_submit_pwm_urbs(struct comedi_device *dev) |
4bf21fa4 | 1476 | { |
0b20d613 | 1477 | struct usb_device *usb = comedi_to_usb_dev(dev); |
5a80fa04 HS |
1478 | struct usbdux_private *devpriv = dev->private; |
1479 | struct urb *urb = devpriv->urb_pwm; | |
8fa07567 | 1480 | |
c0e0c26e | 1481 | /* in case of a resubmission after an unlink... */ |
0b20d613 | 1482 | usb_fill_bulk_urb(urb, usb, usb_sndbulkpipe(usb, PWM_EP), |
5a80fa04 HS |
1483 | urb->transfer_buffer, |
1484 | devpriv->size_pwm_buf, | |
1485 | usbduxsub_pwm_irq, | |
1486 | dev); | |
1487 | ||
1488 | return usb_submit_urb(urb, GFP_ATOMIC); | |
4bf21fa4 BP |
1489 | } |
1490 | ||
0a85b6f0 MT |
1491 | static int usbdux_pwm_period(struct comedi_device *dev, |
1492 | struct comedi_subdevice *s, unsigned int period) | |
4bf21fa4 | 1493 | { |
40f1a5ab | 1494 | struct usbdux_private *this_usbduxsub = dev->private; |
8fa07567 GKH |
1495 | int fx2delay = 255; |
1496 | ||
1497 | if (period < MIN_PWM_PERIOD) { | |
4bf21fa4 BP |
1498 | return -EAGAIN; |
1499 | } else { | |
0a85b6f0 | 1500 | fx2delay = period / ((int)(6 * 512 * (1.0 / 0.033))) - 6; |
91aa6b21 | 1501 | if (fx2delay > 255) |
4bf21fa4 | 1502 | return -EAGAIN; |
4bf21fa4 | 1503 | } |
b74e5f56 JG |
1504 | this_usbduxsub->pwn_delay = fx2delay; |
1505 | this_usbduxsub->pwm_period = period; | |
91aa6b21 | 1506 | |
4bf21fa4 BP |
1507 | return 0; |
1508 | } | |
1509 | ||
0a85b6f0 MT |
1510 | static int usbdux_pwm_start(struct comedi_device *dev, |
1511 | struct comedi_subdevice *s) | |
4bf21fa4 | 1512 | { |
81e80134 HS |
1513 | struct usbdux_private *devpriv = dev->private; |
1514 | int ret = 0; | |
4bf21fa4 | 1515 | |
81e80134 | 1516 | down(&devpriv->sem); |
4bf21fa4 | 1517 | |
81e80134 HS |
1518 | if (devpriv->pwm_cmd_running) |
1519 | goto pwm_start_exit; | |
1520 | ||
1521 | devpriv->dux_commands[1] = devpriv->pwn_delay; | |
49cc49dd | 1522 | ret = send_dux_commands(dev, SENDPWMON); |
4274ea02 | 1523 | if (ret < 0) |
81e80134 | 1524 | goto pwm_start_exit; |
4274ea02 | 1525 | |
37523e84 | 1526 | /* initialise the buffer */ |
81e80134 | 1527 | memset(devpriv->urb_pwm->transfer_buffer, 0, devpriv->size_pwm_buf); |
4bf21fa4 | 1528 | |
81e80134 | 1529 | devpriv->pwm_cmd_running = 1; |
5a80fa04 | 1530 | ret = usbduxsub_submit_pwm_urbs(dev); |
81e80134 HS |
1531 | if (ret < 0) |
1532 | devpriv->pwm_cmd_running = 0; | |
1533 | ||
1534 | pwm_start_exit: | |
1535 | up(&devpriv->sem); | |
1536 | ||
1537 | return ret; | |
4bf21fa4 BP |
1538 | } |
1539 | ||
e54fb9c1 | 1540 | /* generates the bit pattern for PWM with the optional sign bit */ |
0a85b6f0 MT |
1541 | static int usbdux_pwm_pattern(struct comedi_device *dev, |
1542 | struct comedi_subdevice *s, int channel, | |
1543 | unsigned int value, unsigned int sign) | |
4bf21fa4 | 1544 | { |
40f1a5ab | 1545 | struct usbdux_private *this_usbduxsub = dev->private; |
4bf21fa4 | 1546 | int i, szbuf; |
b74e5f56 | 1547 | char *p_buf; |
4274ea02 GKH |
1548 | char pwm_mask; |
1549 | char sgn_mask; | |
1550 | char c; | |
4bf21fa4 | 1551 | |
4274ea02 | 1552 | if (!this_usbduxsub) |
4bf21fa4 | 1553 | return -EFAULT; |
4274ea02 | 1554 | |
e54fb9c1 | 1555 | /* this is the DIO bit which carries the PWM data */ |
4bf21fa4 | 1556 | pwm_mask = (1 << channel); |
e54fb9c1 | 1557 | /* this is the DIO bit which carries the optional direction bit */ |
4bf21fa4 | 1558 | sgn_mask = (16 << channel); |
e54fb9c1 GKH |
1559 | /* this is the buffer which will be filled with the with bit */ |
1560 | /* pattern for one period */ | |
b74e5f56 JG |
1561 | szbuf = this_usbduxsub->size_pwm_buf; |
1562 | p_buf = (char *)(this_usbduxsub->urb_pwm->transfer_buffer); | |
4bf21fa4 | 1563 | for (i = 0; i < szbuf; i++) { |
b74e5f56 | 1564 | c = *p_buf; |
e54fb9c1 | 1565 | /* reset bits */ |
4bf21fa4 | 1566 | c = c & (~pwm_mask); |
e54fb9c1 | 1567 | /* set the bit as long as the index is lower than the value */ |
4bf21fa4 BP |
1568 | if (i < value) |
1569 | c = c | pwm_mask; | |
e54fb9c1 | 1570 | /* set the optional sign bit for a relay */ |
4bf21fa4 | 1571 | if (!sign) { |
e54fb9c1 | 1572 | /* positive value */ |
4bf21fa4 BP |
1573 | c = c & (~sgn_mask); |
1574 | } else { | |
e54fb9c1 | 1575 | /* negative value */ |
4bf21fa4 BP |
1576 | c = c | sgn_mask; |
1577 | } | |
b74e5f56 | 1578 | *(p_buf++) = c; |
4bf21fa4 BP |
1579 | } |
1580 | return 1; | |
1581 | } | |
1582 | ||
0a85b6f0 MT |
1583 | static int usbdux_pwm_write(struct comedi_device *dev, |
1584 | struct comedi_subdevice *s, | |
90035c08 | 1585 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1586 | { |
40f1a5ab | 1587 | struct usbdux_private *this_usbduxsub = dev->private; |
4bf21fa4 | 1588 | |
4274ea02 | 1589 | if (!this_usbduxsub) |
4bf21fa4 | 1590 | return -EFAULT; |
4bf21fa4 | 1591 | |
4274ea02 GKH |
1592 | if ((insn->n) != 1) { |
1593 | /* | |
1594 | * doesn't make sense to have more than one value here because | |
1595 | * it would just overwrite the PWM buffer a couple of times | |
1596 | */ | |
4bf21fa4 BP |
1597 | return -EINVAL; |
1598 | } | |
1599 | ||
4274ea02 GKH |
1600 | /* |
1601 | * the sign is set via a special INSN only, this gives us 8 bits for | |
1602 | * normal operation | |
1603 | * relay sign 0 by default | |
1604 | */ | |
0a85b6f0 | 1605 | return usbdux_pwm_pattern(dev, s, CR_CHAN(insn->chanspec), data[0], 0); |
4bf21fa4 BP |
1606 | } |
1607 | ||
0a85b6f0 MT |
1608 | static int usbdux_pwm_read(struct comedi_device *x1, |
1609 | struct comedi_subdevice *x2, struct comedi_insn *x3, | |
1610 | unsigned int *x4) | |
4bf21fa4 | 1611 | { |
8fa07567 | 1612 | /* not needed */ |
4bf21fa4 BP |
1613 | return -EINVAL; |
1614 | }; | |
1615 | ||
8fa07567 | 1616 | /* switches on/off PWM */ |
0a85b6f0 MT |
1617 | static int usbdux_pwm_config(struct comedi_device *dev, |
1618 | struct comedi_subdevice *s, | |
90035c08 | 1619 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1620 | { |
40f1a5ab | 1621 | struct usbdux_private *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1622 | switch (data[0]) { |
1623 | case INSN_CONFIG_ARM: | |
8fa07567 | 1624 | /* switch it on */ |
8fa07567 GKH |
1625 | /* |
1626 | * if not zero the PWM is limited to a certain time which is | |
1627 | * not supported here | |
1628 | */ | |
1629 | if (data[1] != 0) | |
4bf21fa4 | 1630 | return -EINVAL; |
4bf21fa4 BP |
1631 | return usbdux_pwm_start(dev, s); |
1632 | case INSN_CONFIG_DISARM: | |
4bf21fa4 BP |
1633 | return usbdux_pwm_cancel(dev, s); |
1634 | case INSN_CONFIG_GET_PWM_STATUS: | |
8fa07567 GKH |
1635 | /* |
1636 | * to check if the USB transmission has failed or in case PWM | |
1637 | * was limited to n cycles to check if it has terminated | |
1638 | */ | |
4bf21fa4 BP |
1639 | data[1] = this_usbduxsub->pwm_cmd_running; |
1640 | return 0; | |
1641 | case INSN_CONFIG_PWM_SET_PERIOD: | |
8fa07567 | 1642 | return usbdux_pwm_period(dev, s, data[1]); |
4bf21fa4 | 1643 | case INSN_CONFIG_PWM_GET_PERIOD: |
b74e5f56 | 1644 | data[1] = this_usbduxsub->pwm_period; |
4bf21fa4 BP |
1645 | return 0; |
1646 | case INSN_CONFIG_PWM_SET_H_BRIDGE: | |
8fa07567 GKH |
1647 | /* value in the first byte and the sign in the second for a |
1648 | relay */ | |
4bf21fa4 | 1649 | return usbdux_pwm_pattern(dev, s, |
8fa07567 GKH |
1650 | /* the channel number */ |
1651 | CR_CHAN(insn->chanspec), | |
1652 | /* actual PWM data */ | |
1653 | data[1], | |
1654 | /* just a sign */ | |
1655 | (data[2] != 0)); | |
4bf21fa4 | 1656 | case INSN_CONFIG_PWM_GET_H_BRIDGE: |
8fa07567 | 1657 | /* values are not kept in this driver, nothing to return here */ |
4bf21fa4 BP |
1658 | return -EINVAL; |
1659 | } | |
1660 | return -EINVAL; | |
1661 | } | |
1662 | ||
8fa07567 GKH |
1663 | /* end of PWM */ |
1664 | /*****************************************************************/ | |
4bf21fa4 | 1665 | |
11642c65 | 1666 | static int usbdux_alloc_usb_buffers(struct comedi_device *dev) |
080bcc18 | 1667 | { |
0b20d613 | 1668 | struct usb_device *usb = comedi_to_usb_dev(dev); |
11642c65 | 1669 | struct usbdux_private *devpriv = dev->private; |
080bcc18 HS |
1670 | struct urb *urb; |
1671 | int i; | |
1672 | ||
1673 | /* create space for the commands of the DA converter */ | |
1674 | devpriv->dac_commands = kzalloc(NUMOUTCHANNELS, GFP_KERNEL); | |
1675 | if (!devpriv->dac_commands) | |
1676 | return -ENOMEM; | |
1677 | ||
1678 | /* create space for the commands going to the usb device */ | |
1679 | devpriv->dux_commands = kzalloc(SIZEOFDUXBUFFER, GFP_KERNEL); | |
1680 | if (!devpriv->dux_commands) | |
1681 | return -ENOMEM; | |
1682 | ||
1683 | /* create space for the in buffer and set it to zero */ | |
1684 | devpriv->in_buffer = kzalloc(SIZEINBUF, GFP_KERNEL); | |
1685 | if (!devpriv->in_buffer) | |
1686 | return -ENOMEM; | |
1687 | ||
1688 | /* create space of the instruction buffer */ | |
1689 | devpriv->insn_buffer = kzalloc(SIZEINSNBUF, GFP_KERNEL); | |
1690 | if (!devpriv->insn_buffer) | |
1691 | return -ENOMEM; | |
1692 | ||
1693 | /* create space for the outbuffer */ | |
1694 | devpriv->out_buffer = kzalloc(SIZEOUTBUF, GFP_KERNEL); | |
1695 | if (!devpriv->out_buffer) | |
1696 | return -ENOMEM; | |
1697 | ||
1698 | /* in urbs */ | |
1699 | devpriv->urb_in = kcalloc(devpriv->num_in_buffers, sizeof(*urb), | |
1700 | GFP_KERNEL); | |
1701 | if (!devpriv->urb_in) | |
1702 | return -ENOMEM; | |
1703 | ||
1704 | for (i = 0; i < devpriv->num_in_buffers; i++) { | |
1705 | /* one frame: 1ms */ | |
1706 | urb = usb_alloc_urb(1, GFP_KERNEL); | |
1707 | if (!urb) | |
1708 | return -ENOMEM; | |
1709 | devpriv->urb_in[i] = urb; | |
1710 | ||
0b20d613 | 1711 | urb->dev = usb; |
080bcc18 HS |
1712 | /* will be filled later with a pointer to the comedi-device */ |
1713 | /* and ONLY then the urb should be submitted */ | |
1714 | urb->context = NULL; | |
0b20d613 | 1715 | urb->pipe = usb_rcvisocpipe(usb, ISOINEP); |
080bcc18 HS |
1716 | urb->transfer_flags = URB_ISO_ASAP; |
1717 | urb->transfer_buffer = kzalloc(SIZEINBUF, GFP_KERNEL); | |
1718 | if (!urb->transfer_buffer) | |
1719 | return -ENOMEM; | |
1720 | ||
1721 | urb->complete = usbduxsub_ai_isoc_irq; | |
1722 | urb->number_of_packets = 1; | |
1723 | urb->transfer_buffer_length = SIZEINBUF; | |
1724 | urb->iso_frame_desc[0].offset = 0; | |
1725 | urb->iso_frame_desc[0].length = SIZEINBUF; | |
1726 | } | |
1727 | ||
1728 | /* out urbs */ | |
1729 | devpriv->urb_out = kcalloc(devpriv->num_out_buffers, sizeof(*urb), | |
1730 | GFP_KERNEL); | |
1731 | if (!devpriv->urb_out) | |
1732 | return -ENOMEM; | |
1733 | ||
1734 | for (i = 0; i < devpriv->num_out_buffers; i++) { | |
1735 | /* one frame: 1ms */ | |
1736 | urb = usb_alloc_urb(1, GFP_KERNEL); | |
1737 | if (!urb) | |
1738 | return -ENOMEM; | |
1739 | devpriv->urb_out[i] = urb; | |
1740 | ||
0b20d613 | 1741 | urb->dev = usb; |
080bcc18 HS |
1742 | /* will be filled later with a pointer to the comedi-device */ |
1743 | /* and ONLY then the urb should be submitted */ | |
1744 | urb->context = NULL; | |
0b20d613 | 1745 | urb->pipe = usb_sndisocpipe(usb, ISOOUTEP); |
080bcc18 HS |
1746 | urb->transfer_flags = URB_ISO_ASAP; |
1747 | urb->transfer_buffer = kzalloc(SIZEOUTBUF, GFP_KERNEL); | |
1748 | if (!urb->transfer_buffer) | |
1749 | return -ENOMEM; | |
1750 | ||
1751 | urb->complete = usbduxsub_ao_isoc_irq; | |
1752 | urb->number_of_packets = 1; | |
1753 | urb->transfer_buffer_length = SIZEOUTBUF; | |
1754 | urb->iso_frame_desc[0].offset = 0; | |
1755 | urb->iso_frame_desc[0].length = SIZEOUTBUF; | |
1756 | if (devpriv->high_speed) | |
1757 | urb->interval = 8; /* uframes */ | |
1758 | else | |
1759 | urb->interval = 1; /* frames */ | |
1760 | } | |
1761 | ||
1762 | /* pwm */ | |
1763 | if (devpriv->size_pwm_buf) { | |
1764 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
1765 | if (!urb) | |
1766 | return -ENOMEM; | |
1767 | devpriv->urb_pwm = urb; | |
1768 | ||
1769 | /* max bulk ep size in high speed */ | |
1770 | urb->transfer_buffer = kzalloc(devpriv->size_pwm_buf, | |
1771 | GFP_KERNEL); | |
1772 | if (!urb->transfer_buffer) | |
1773 | return -ENOMEM; | |
1774 | } | |
1775 | ||
1776 | return 0; | |
1777 | } | |
1778 | ||
8ff14ee8 HS |
1779 | static void usbdux_free_usb_buffers(struct usbdux_private *devpriv) |
1780 | { | |
1781 | struct urb *urb; | |
1782 | int i; | |
1783 | ||
1784 | urb = devpriv->urb_pwm; | |
1785 | if (urb) { | |
1786 | kfree(urb->transfer_buffer); | |
1787 | usb_kill_urb(urb); | |
1788 | usb_free_urb(urb); | |
1789 | } | |
1790 | if (devpriv->urb_out) { | |
1791 | for (i = 0; i < devpriv->num_out_buffers; i++) { | |
1792 | urb = devpriv->urb_out[i]; | |
1793 | if (urb) { | |
1794 | kfree(urb->transfer_buffer); | |
1795 | usb_kill_urb(urb); | |
1796 | usb_free_urb(urb); | |
1797 | } | |
1798 | } | |
1799 | kfree(devpriv->urb_out); | |
1800 | } | |
1801 | if (devpriv->urb_in) { | |
1802 | for (i = 0; i < devpriv->num_in_buffers; i++) { | |
1803 | urb = devpriv->urb_in[i]; | |
1804 | if (urb) { | |
1805 | kfree(urb->transfer_buffer); | |
1806 | usb_kill_urb(urb); | |
1807 | usb_free_urb(urb); | |
1808 | } | |
1809 | } | |
1810 | kfree(devpriv->urb_in); | |
1811 | } | |
1812 | kfree(devpriv->out_buffer); | |
1813 | kfree(devpriv->insn_buffer); | |
1814 | kfree(devpriv->in_buffer); | |
1815 | kfree(devpriv->dux_commands); | |
1816 | kfree(devpriv->dac_commands); | |
1817 | } | |
1818 | ||
807e65b0 IA |
1819 | static int usbdux_auto_attach(struct comedi_device *dev, |
1820 | unsigned long context_unused) | |
3403cc0f | 1821 | { |
ef1ee8cf HS |
1822 | struct usb_interface *intf = comedi_to_usb_interface(dev); |
1823 | struct usb_device *usb = comedi_to_usb_dev(dev); | |
1824 | struct usbdux_private *devpriv; | |
cc84f4f9 | 1825 | struct comedi_subdevice *s; |
080bcc18 | 1826 | int ret; |
4bf21fa4 | 1827 | |
ef1ee8cf HS |
1828 | devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); |
1829 | if (!devpriv) | |
1830 | return -ENOMEM; | |
4bf21fa4 | 1831 | |
da903590 | 1832 | sema_init(&devpriv->sem, 1); |
4bf21fa4 | 1833 | |
ef1ee8cf | 1834 | usb_set_intfdata(intf, devpriv); |
4bf21fa4 | 1835 | |
0b20d613 | 1836 | devpriv->high_speed = (usb->speed == USB_SPEED_HIGH); |
080bcc18 | 1837 | if (devpriv->high_speed) { |
da903590 | 1838 | devpriv->num_in_buffers = NUMOFINBUFFERSHIGH; |
080bcc18 HS |
1839 | devpriv->num_out_buffers = NUMOFOUTBUFFERSHIGH; |
1840 | devpriv->size_pwm_buf = 512; | |
1841 | } else { | |
da903590 | 1842 | devpriv->num_in_buffers = NUMOFINBUFFERSFULL; |
080bcc18 | 1843 | devpriv->num_out_buffers = NUMOFOUTBUFFERSFULL; |
080bcc18 | 1844 | } |
8fa07567 | 1845 | |
11642c65 | 1846 | ret = usbdux_alloc_usb_buffers(dev); |
29d0c074 | 1847 | if (ret) |
080bcc18 | 1848 | return ret; |
4bf21fa4 | 1849 | |
080bcc18 | 1850 | /* setting to alternate setting 3: enabling iso ep and bulk ep. */ |
903f4fde HS |
1851 | ret = usb_set_interface(usb, intf->altsetting->desc.bInterfaceNumber, |
1852 | 3); | |
080bcc18 | 1853 | if (ret < 0) { |
ef1ee8cf | 1854 | dev_err(dev->class_dev, |
080bcc18 | 1855 | "could not set alternate setting 3 in high speed\n"); |
080bcc18 | 1856 | return ret; |
4bf21fa4 BP |
1857 | } |
1858 | ||
ef1ee8cf HS |
1859 | ret = comedi_load_firmware(dev, &usb->dev, FIRMWARE, |
1860 | usbdux_firmware_upload, 0); | |
1861 | if (ret < 0) | |
1862 | return ret; | |
4bf21fa4 | 1863 | |
cc84f4f9 HS |
1864 | ret = comedi_alloc_subdevices(dev, (devpriv->high_speed) ? 5 : 4); |
1865 | if (ret) | |
1866 | return ret; | |
1867 | ||
1868 | /* Analog Input subdevice */ | |
e5acdc35 | 1869 | s = &dev->subdevices[0]; |
cc84f4f9 HS |
1870 | dev->read_subdev = s; |
1871 | s->type = COMEDI_SUBD_AI; | |
1872 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ; | |
1873 | s->n_chan = 8; | |
1874 | s->maxdata = 0x0fff; | |
1875 | s->len_chanlist = 8; | |
1876 | s->range_table = &range_usbdux_ai_range; | |
1877 | s->insn_read = usbdux_ai_insn_read; | |
1878 | s->do_cmdtest = usbdux_ai_cmdtest; | |
1879 | s->do_cmd = usbdux_ai_cmd; | |
1880 | s->cancel = usbdux_ai_cancel; | |
1881 | ||
1882 | /* Analog Output subdevice */ | |
e5acdc35 | 1883 | s = &dev->subdevices[1]; |
cc84f4f9 HS |
1884 | dev->write_subdev = s; |
1885 | s->type = COMEDI_SUBD_AO; | |
1886 | s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE; | |
1887 | s->n_chan = 4; | |
1888 | s->maxdata = 0x0fff; | |
1889 | s->len_chanlist = 4; | |
1890 | s->range_table = &range_usbdux_ao_range; | |
1891 | s->do_cmdtest = usbdux_ao_cmdtest; | |
1892 | s->do_cmd = usbdux_ao_cmd; | |
1893 | s->cancel = usbdux_ao_cancel; | |
1894 | s->insn_read = usbdux_ao_insn_read; | |
1895 | s->insn_write = usbdux_ao_insn_write; | |
1896 | ||
1897 | /* Digital I/O subdevice */ | |
e5acdc35 | 1898 | s = &dev->subdevices[2]; |
cc84f4f9 HS |
1899 | s->type = COMEDI_SUBD_DIO; |
1900 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
1901 | s->n_chan = 8; | |
1902 | s->maxdata = 1; | |
1903 | s->range_table = &range_digital; | |
1904 | s->insn_bits = usbdux_dio_insn_bits; | |
1905 | s->insn_config = usbdux_dio_insn_config; | |
1906 | ||
1907 | /* Counter subdevice */ | |
e5acdc35 | 1908 | s = &dev->subdevices[3]; |
cc84f4f9 HS |
1909 | s->type = COMEDI_SUBD_COUNTER; |
1910 | s->subdev_flags = SDF_WRITABLE | SDF_READABLE; | |
1911 | s->n_chan = 4; | |
1912 | s->maxdata = 0xffff; | |
1913 | s->insn_read = usbdux_counter_read; | |
1914 | s->insn_write = usbdux_counter_write; | |
1915 | s->insn_config = usbdux_counter_config; | |
1916 | ||
1917 | if (devpriv->high_speed) { | |
1918 | /* PWM subdevice */ | |
e5acdc35 | 1919 | s = &dev->subdevices[4]; |
cc84f4f9 HS |
1920 | s->type = COMEDI_SUBD_PWM; |
1921 | s->subdev_flags = SDF_WRITABLE | SDF_PWM_HBRIDGE; | |
1922 | s->n_chan = 8; | |
1923 | s->maxdata = devpriv->size_pwm_buf; | |
1924 | s->insn_write = usbdux_pwm_write; | |
1925 | s->insn_read = usbdux_pwm_read; | |
1926 | s->insn_config = usbdux_pwm_config; | |
1927 | ||
1928 | usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD); | |
1929 | } | |
1930 | ||
1931 | return 0; | |
ef1ee8cf HS |
1932 | } |
1933 | ||
1934 | static void usbdux_detach(struct comedi_device *dev) | |
1935 | { | |
5d293d90 | 1936 | struct usb_interface *intf = comedi_to_usb_interface(dev); |
ef1ee8cf | 1937 | struct usbdux_private *devpriv = dev->private; |
6742c0af | 1938 | |
ef1ee8cf HS |
1939 | if (devpriv) { |
1940 | down(&devpriv->sem); | |
8ff14ee8 | 1941 | |
5d293d90 | 1942 | usb_set_intfdata(intf, NULL); |
8ff14ee8 | 1943 | |
ecc2b229 HS |
1944 | /* stop and unlink any submitted urbs */ |
1945 | usbdux_pwm_stop(dev, devpriv->pwm_cmd_running); | |
1946 | usbdux_ao_stop(dev, devpriv->ao_cmd_running); | |
1947 | usbdux_ai_stop(dev, devpriv->ai_cmd_running); | |
8ff14ee8 HS |
1948 | |
1949 | usbdux_free_usb_buffers(devpriv); | |
1950 | ||
ef1ee8cf HS |
1951 | up(&devpriv->sem); |
1952 | } | |
1953 | } | |
1954 | ||
1955 | static struct comedi_driver usbdux_driver = { | |
1956 | .driver_name = "usbdux", | |
1957 | .module = THIS_MODULE, | |
1958 | .auto_attach = usbdux_auto_attach, | |
1959 | .detach = usbdux_detach, | |
1960 | }; | |
1961 | ||
1962 | static int usbdux_usb_probe(struct usb_interface *intf, | |
1963 | const struct usb_device_id *id) | |
1964 | { | |
1965 | return comedi_usb_auto_config(intf, &usbdux_driver, 0); | |
4bf21fa4 BP |
1966 | } |
1967 | ||
3403cc0f HS |
1968 | static const struct usb_device_id usbdux_usb_table[] = { |
1969 | { USB_DEVICE(0x13d8, 0x0001) }, | |
1970 | { USB_DEVICE(0x13d8, 0x0002) }, | |
1971 | { } | |
4bf21fa4 | 1972 | }; |
3403cc0f | 1973 | MODULE_DEVICE_TABLE(usb, usbdux_usb_table); |
4bf21fa4 | 1974 | |
42318c32 | 1975 | static struct usb_driver usbdux_usb_driver = { |
3403cc0f HS |
1976 | .name = "usbdux", |
1977 | .probe = usbdux_usb_probe, | |
a7dd65f5 | 1978 | .disconnect = comedi_usb_auto_unconfig, |
3403cc0f | 1979 | .id_table = usbdux_usb_table, |
4bf21fa4 | 1980 | }; |
42318c32 | 1981 | module_comedi_usb_driver(usbdux_driver, usbdux_usb_driver); |
4bf21fa4 | 1982 | |
3403cc0f HS |
1983 | MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com"); |
1984 | MODULE_DESCRIPTION("Stirling/ITL USB-DUX -- Bernd.Porr@f2s.com"); | |
4bf21fa4 | 1985 | MODULE_LICENSE("GPL"); |
1e1ccc3a | 1986 | MODULE_FIRMWARE(FIRMWARE); |