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Commit | Line | Data |
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d4c3a565 | 1 | #define DRIVER_VERSION "v2.4" |
4bf21fa4 BP |
2 | #define DRIVER_AUTHOR "Bernd Porr, BerndPorr@f2s.com" |
3 | #define DRIVER_DESC "Stirling/ITL USB-DUX -- Bernd.Porr@f2s.com" | |
4 | /* | |
5 | comedi/drivers/usbdux.c | |
6 | Copyright (C) 2003-2007 Bernd Porr, Bernd.Porr@f2s.com | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | ||
22 | */ | |
23 | /* | |
24 | Driver: usbdux | |
25 | Description: University of Stirling USB DAQ & INCITE Technology Limited | |
26 | Devices: [ITL] USB-DUX (usbdux.o) | |
27 | Author: Bernd Porr <BerndPorr@f2s.com> | |
6742c0af BP |
28 | Updated: 8 Dec 2008 |
29 | Status: Stable | |
4bf21fa4 BP |
30 | Configuration options: |
31 | You have to upload firmware with the -i option. The | |
32 | firmware is usually installed under /usr/share/usb or | |
33 | /usr/local/share/usb or /lib/firmware. | |
34 | ||
35 | Connection scheme for the counter at the digital port: | |
36 | 0=/CLK0, 1=UP/DOWN0, 2=RESET0, 4=/CLK1, 5=UP/DOWN1, 6=RESET1. | |
37 | The sampling rate of the counter is approximately 500Hz. | |
38 | ||
39 | Please note that under USB2.0 the length of the channel list determines | |
40 | the max sampling rate. If you sample only one channel you get 8kHz | |
41 | sampling rate. If you sample two channels you get 4kHz and so on. | |
42 | */ | |
43 | /* | |
44 | * I must give credit here to Chris Baugher who | |
45 | * wrote the driver for AT-MIO-16d. I used some parts of this | |
46 | * driver. I also must give credits to David Brownell | |
47 | * who supported me with the USB development. | |
48 | * | |
49 | * Bernd Porr | |
50 | * | |
51 | * | |
52 | * Revision history: | |
53 | * 0.94: D/A output should work now with any channel list combinations | |
54 | * 0.95: .owner commented out for kernel vers below 2.4.19 | |
55 | * sanity checks in ai/ao_cmd | |
4274ea02 GKH |
56 | * 0.96: trying to get it working with 2.6, moved all memory alloc to comedi's |
57 | * attach final USB IDs | |
58 | * moved memory allocation completely to the corresponding comedi | |
59 | * functions firmware upload is by fxload and no longer by comedi (due to | |
60 | * enumeration) | |
4bf21fa4 BP |
61 | * 0.97: USB IDs received, adjusted table |
62 | * 0.98: SMP, locking, memroy alloc: moved all usb memory alloc | |
63 | * to the usb subsystem and moved all comedi related memory | |
64 | * alloc to comedi. | |
65 | * | kernel | registration | usbdux-usb | usbdux-comedi | comedi | | |
66 | * 0.99: USB 2.0: changed protocol to isochronous transfer | |
67 | * IRQ transfer is too buggy and too risky in 2.0 | |
4274ea02 GKH |
68 | * for the high speed ISO transfer is now a working version |
69 | * available | |
4bf21fa4 BP |
70 | * 0.99b: Increased the iso transfer buffer for high sp.to 10 buffers. Some VIA |
71 | * chipsets miss out IRQs. Deeper buffering is needed. | |
4274ea02 GKH |
72 | * 1.00: full USB 2.0 support for the A/D converter. Now: max 8kHz sampling |
73 | * rate. | |
4bf21fa4 BP |
74 | * Firmware vers 1.00 is needed for this. |
75 | * Two 16 bit up/down/reset counter with a sampling rate of 1kHz | |
76 | * And loads of cleaning up, in particular streamlining the | |
77 | * bulk transfers. | |
78 | * 1.1: moved EP4 transfers to EP1 to make space for a PWM output on EP4 | |
79 | * 1.2: added PWM suport via EP4 | |
80 | * 2.0: PWM seems to be stable and is not interfering with the other functions | |
81 | * 2.1: changed PWM API | |
6742c0af | 82 | * 2.2: added firmware kernel request to fix an udev problem |
ea25371a | 83 | * 2.3: corrected a bug in bulk timeouts which were far too short |
d4c3a565 BP |
84 | * 2.4: fixed a bug which causes the driver to hang when it ran out of data. |
85 | * Thanks to Jan-Matthias Braun and Ian to spot the bug and fix it. | |
4bf21fa4 BP |
86 | * |
87 | */ | |
88 | ||
e54fb9c1 GKH |
89 | /* generates loads of debug info */ |
90 | /* #define NOISY_DUX_DEBUGBUG */ | |
4bf21fa4 BP |
91 | |
92 | #include <linux/kernel.h> | |
93 | #include <linux/module.h> | |
94 | #include <linux/init.h> | |
95 | #include <linux/slab.h> | |
96 | #include <linux/input.h> | |
97 | #include <linux/usb.h> | |
4bf21fa4 BP |
98 | #include <linux/fcntl.h> |
99 | #include <linux/compiler.h> | |
6742c0af | 100 | #include <linux/firmware.h> |
4bf21fa4 BP |
101 | |
102 | #include "../comedidev.h" | |
4bf21fa4 BP |
103 | |
104 | #define BOARDNAME "usbdux" | |
105 | ||
ea25371a BP |
106 | /* timeout for the USB-transfer in ms*/ |
107 | #define BULK_TIMEOUT 1000 | |
4bf21fa4 | 108 | |
e54fb9c1 | 109 | /* constants for "firmware" upload and download */ |
4bf21fa4 BP |
110 | #define USBDUXSUB_FIRMWARE 0xA0 |
111 | #define VENDOR_DIR_IN 0xC0 | |
112 | #define VENDOR_DIR_OUT 0x40 | |
113 | ||
e54fb9c1 | 114 | /* internal adresses of the 8051 processor */ |
4bf21fa4 BP |
115 | #define USBDUXSUB_CPUCS 0xE600 |
116 | ||
e54fb9c1 GKH |
117 | /* |
118 | * the minor device number, major is 180 only for debugging purposes and to | |
119 | * upload special firmware (programming the eeprom etc) which is not compatible | |
120 | * with the comedi framwork | |
121 | */ | |
4bf21fa4 BP |
122 | #define USBDUXSUB_MINOR 32 |
123 | ||
e54fb9c1 | 124 | /* max lenghth of the transfer-buffer for software upload */ |
4bf21fa4 BP |
125 | #define TB_LEN 0x2000 |
126 | ||
e54fb9c1 | 127 | /* Input endpoint number: ISO/IRQ */ |
4bf21fa4 BP |
128 | #define ISOINEP 6 |
129 | ||
e54fb9c1 | 130 | /* Output endpoint number: ISO/IRQ */ |
4bf21fa4 BP |
131 | #define ISOOUTEP 2 |
132 | ||
e54fb9c1 | 133 | /* This EP sends DUX commands to USBDUX */ |
4bf21fa4 BP |
134 | #define COMMAND_OUT_EP 1 |
135 | ||
e54fb9c1 | 136 | /* This EP receives the DUX commands from USBDUX */ |
4bf21fa4 BP |
137 | #define COMMAND_IN_EP 8 |
138 | ||
e54fb9c1 | 139 | /* Output endpoint for PWM */ |
4bf21fa4 BP |
140 | #define PWM_EP 4 |
141 | ||
e54fb9c1 | 142 | /* 300Hz max frequ under PWM */ |
4bf21fa4 BP |
143 | #define MIN_PWM_PERIOD ((long)(1E9/300)) |
144 | ||
e54fb9c1 | 145 | /* Default PWM frequency */ |
4bf21fa4 BP |
146 | #define PWM_DEFAULT_PERIOD ((long)(1E9/100)) |
147 | ||
e54fb9c1 | 148 | /* Number of channels */ |
4bf21fa4 BP |
149 | #define NUMCHANNELS 8 |
150 | ||
e54fb9c1 | 151 | /* Size of one A/D value */ |
4bf21fa4 BP |
152 | #define SIZEADIN ((sizeof(int16_t))) |
153 | ||
4274ea02 GKH |
154 | /* |
155 | * Size of the input-buffer IN BYTES | |
156 | * Always multiple of 8 for 8 microframes which is needed in the highspeed mode | |
157 | */ | |
4bf21fa4 BP |
158 | #define SIZEINBUF ((8*SIZEADIN)) |
159 | ||
e54fb9c1 | 160 | /* 16 bytes. */ |
4bf21fa4 BP |
161 | #define SIZEINSNBUF 16 |
162 | ||
e54fb9c1 | 163 | /* Number of DA channels */ |
4bf21fa4 BP |
164 | #define NUMOUTCHANNELS 8 |
165 | ||
e54fb9c1 | 166 | /* size of one value for the D/A converter: channel and value */ |
4bf21fa4 BP |
167 | #define SIZEDAOUT ((sizeof(int8_t)+sizeof(int16_t))) |
168 | ||
e54fb9c1 GKH |
169 | /* |
170 | * Size of the output-buffer in bytes | |
171 | * Actually only the first 4 triplets are used but for the | |
172 | * high speed mode we need to pad it to 8 (microframes). | |
173 | */ | |
4bf21fa4 BP |
174 | #define SIZEOUTBUF ((8*SIZEDAOUT)) |
175 | ||
e54fb9c1 GKH |
176 | /* |
177 | * Size of the buffer for the dux commands: just now max size is determined | |
178 | * by the analogue out + command byte + panic bytes... | |
179 | */ | |
4bf21fa4 BP |
180 | #define SIZEOFDUXBUFFER ((8*SIZEDAOUT+2)) |
181 | ||
e54fb9c1 | 182 | /* Number of in-URBs which receive the data: min=2 */ |
4bf21fa4 BP |
183 | #define NUMOFINBUFFERSFULL 5 |
184 | ||
e54fb9c1 | 185 | /* Number of out-URBs which send the data: min=2 */ |
4bf21fa4 BP |
186 | #define NUMOFOUTBUFFERSFULL 5 |
187 | ||
e54fb9c1 GKH |
188 | /* Number of in-URBs which receive the data: min=5 */ |
189 | /* must have more buffers due to buggy USB ctr */ | |
190 | #define NUMOFINBUFFERSHIGH 10 | |
4bf21fa4 | 191 | |
e54fb9c1 GKH |
192 | /* Number of out-URBs which send the data: min=5 */ |
193 | /* must have more buffers due to buggy USB ctr */ | |
194 | #define NUMOFOUTBUFFERSHIGH 10 | |
4bf21fa4 | 195 | |
e54fb9c1 | 196 | /* Total number of usbdux devices */ |
4bf21fa4 BP |
197 | #define NUMUSBDUX 16 |
198 | ||
e54fb9c1 | 199 | /* Analogue in subdevice */ |
4bf21fa4 BP |
200 | #define SUBDEV_AD 0 |
201 | ||
e54fb9c1 | 202 | /* Analogue out subdevice */ |
4bf21fa4 BP |
203 | #define SUBDEV_DA 1 |
204 | ||
e54fb9c1 | 205 | /* Digital I/O */ |
4bf21fa4 BP |
206 | #define SUBDEV_DIO 2 |
207 | ||
e54fb9c1 | 208 | /* counter */ |
4bf21fa4 BP |
209 | #define SUBDEV_COUNTER 3 |
210 | ||
e54fb9c1 | 211 | /* timer aka pwm output */ |
4bf21fa4 BP |
212 | #define SUBDEV_PWM 4 |
213 | ||
e54fb9c1 | 214 | /* number of retries to get the right dux command */ |
4bf21fa4 BP |
215 | #define RETRIES 10 |
216 | ||
e54fb9c1 GKH |
217 | /**************************************************/ |
218 | /* comedi constants */ | |
9ced1de6 | 219 | static const struct comedi_lrange range_usbdux_ai_range = { 4, { |
0a85b6f0 MT |
220 | BIP_RANGE |
221 | (4.096), | |
222 | BIP_RANGE(4.096 | |
223 | / 2), | |
224 | UNI_RANGE | |
225 | (4.096), | |
226 | UNI_RANGE(4.096 | |
227 | / 2) | |
228 | } | |
4bf21fa4 BP |
229 | }; |
230 | ||
9ced1de6 | 231 | static const struct comedi_lrange range_usbdux_ao_range = { 2, { |
0a85b6f0 MT |
232 | BIP_RANGE |
233 | (4.096), | |
234 | UNI_RANGE | |
235 | (4.096), | |
236 | } | |
4bf21fa4 BP |
237 | }; |
238 | ||
239 | /* | |
240 | * private structure of one subdevice | |
241 | */ | |
242 | ||
e54fb9c1 GKH |
243 | /* |
244 | * This is the structure which holds all the data of | |
245 | * this driver one sub device just now: A/D | |
246 | */ | |
cc92fca7 | 247 | struct usbduxsub { |
e54fb9c1 | 248 | /* attached? */ |
4bf21fa4 | 249 | int attached; |
e54fb9c1 | 250 | /* is it associated with a subdevice? */ |
4bf21fa4 | 251 | int probed; |
e54fb9c1 | 252 | /* pointer to the usb-device */ |
4bf21fa4 | 253 | struct usb_device *usbdev; |
e54fb9c1 | 254 | /* actual number of in-buffers */ |
4bf21fa4 | 255 | int numOfInBuffers; |
e54fb9c1 | 256 | /* actual number of out-buffers */ |
4bf21fa4 | 257 | int numOfOutBuffers; |
e54fb9c1 | 258 | /* ISO-transfer handling: buffers */ |
4bf21fa4 BP |
259 | struct urb **urbIn; |
260 | struct urb **urbOut; | |
e54fb9c1 | 261 | /* pwm-transfer handling */ |
4bf21fa4 | 262 | struct urb *urbPwm; |
e54fb9c1 | 263 | /* PWM period */ |
790c5541 | 264 | unsigned int pwmPeriod; |
e54fb9c1 | 265 | /* PWM internal delay for the GPIF in the FX2 */ |
4bf21fa4 | 266 | int8_t pwmDelay; |
e54fb9c1 | 267 | /* size of the PWM buffer which holds the bit pattern */ |
4bf21fa4 | 268 | int sizePwmBuf; |
e54fb9c1 | 269 | /* input buffer for the ISO-transfer */ |
4bf21fa4 | 270 | int16_t *inBuffer; |
e54fb9c1 | 271 | /* input buffer for single insn */ |
4bf21fa4 | 272 | int16_t *insnBuffer; |
e54fb9c1 | 273 | /* output buffer for single DA outputs */ |
4bf21fa4 | 274 | int16_t *outBuffer; |
e54fb9c1 | 275 | /* interface number */ |
4bf21fa4 | 276 | int ifnum; |
e54fb9c1 | 277 | /* interface structure in 2.6 */ |
4bf21fa4 | 278 | struct usb_interface *interface; |
e54fb9c1 | 279 | /* comedi device for the interrupt context */ |
71b5f4f1 | 280 | struct comedi_device *comedidev; |
e54fb9c1 | 281 | /* is it USB_SPEED_HIGH or not? */ |
4bf21fa4 | 282 | short int high_speed; |
e54fb9c1 | 283 | /* asynchronous command is running */ |
4bf21fa4 BP |
284 | short int ai_cmd_running; |
285 | short int ao_cmd_running; | |
e54fb9c1 | 286 | /* pwm is running */ |
4bf21fa4 | 287 | short int pwm_cmd_running; |
e54fb9c1 | 288 | /* continous aquisition */ |
4bf21fa4 BP |
289 | short int ai_continous; |
290 | short int ao_continous; | |
9d220c6b | 291 | /* number of samples to acquire */ |
4bf21fa4 BP |
292 | int ai_sample_count; |
293 | int ao_sample_count; | |
e54fb9c1 | 294 | /* time between samples in units of the timer */ |
4bf21fa4 BP |
295 | unsigned int ai_timer; |
296 | unsigned int ao_timer; | |
e54fb9c1 | 297 | /* counter between aquisitions */ |
4bf21fa4 BP |
298 | unsigned int ai_counter; |
299 | unsigned int ao_counter; | |
e54fb9c1 | 300 | /* interval in frames/uframes */ |
4bf21fa4 | 301 | unsigned int ai_interval; |
e54fb9c1 | 302 | /* D/A commands */ |
4bf21fa4 | 303 | int8_t *dac_commands; |
e54fb9c1 | 304 | /* commands */ |
4bf21fa4 BP |
305 | int8_t *dux_commands; |
306 | struct semaphore sem; | |
cc92fca7 | 307 | }; |
4bf21fa4 | 308 | |
e54fb9c1 GKH |
309 | /* |
310 | * The pointer to the private usb-data of the driver is also the private data | |
311 | * for the comedi-device. This has to be global as the usb subsystem needs | |
312 | * global variables. The other reason is that this structure must be there | |
313 | * _before_ any comedi command is issued. The usb subsystem must be initialised | |
314 | * before comedi can access it. | |
315 | */ | |
cc92fca7 | 316 | static struct usbduxsub usbduxsub[NUMUSBDUX]; |
4bf21fa4 BP |
317 | |
318 | static DECLARE_MUTEX(start_stop_sem); | |
319 | ||
e54fb9c1 GKH |
320 | /* |
321 | * Stops the data acquision | |
322 | * It should be safe to call this function from any context | |
323 | */ | |
cc92fca7 | 324 | static int usbduxsub_unlink_InURBs(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 BP |
325 | { |
326 | int i = 0; | |
4bf21fa4 BP |
327 | int err = 0; |
328 | ||
329 | if (usbduxsub_tmp && usbduxsub_tmp->urbIn) { | |
330 | for (i = 0; i < usbduxsub_tmp->numOfInBuffers; i++) { | |
331 | if (usbduxsub_tmp->urbIn[i]) { | |
e54fb9c1 GKH |
332 | /* We wait here until all transfers have been |
333 | * cancelled. */ | |
4bf21fa4 | 334 | usb_kill_urb(usbduxsub_tmp->urbIn[i]); |
4bf21fa4 | 335 | } |
c0e0c26e GKH |
336 | dev_dbg(&usbduxsub_tmp->interface->dev, |
337 | "comedi: usbdux: unlinked InURB %d, err=%d\n", | |
4bf21fa4 | 338 | i, err); |
4bf21fa4 BP |
339 | } |
340 | } | |
341 | return err; | |
342 | } | |
343 | ||
8fa07567 GKH |
344 | /* |
345 | * This will stop a running acquisition operation | |
346 | * Is called from within this driver from both the | |
347 | * interrupt context and from comedi | |
348 | */ | |
cc92fca7 | 349 | static int usbdux_ai_stop(struct usbduxsub *this_usbduxsub, int do_unlink) |
4bf21fa4 BP |
350 | { |
351 | int ret = 0; | |
352 | ||
353 | if (!this_usbduxsub) { | |
c0e0c26e GKH |
354 | dev_err(&this_usbduxsub->interface->dev, |
355 | "comedi?: usbdux_ai_stop: this_usbduxsub=NULL!\n"); | |
4bf21fa4 BP |
356 | return -EFAULT; |
357 | } | |
c0e0c26e | 358 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: usbdux_ai_stop\n"); |
4bf21fa4 BP |
359 | |
360 | if (do_unlink) { | |
e54fb9c1 | 361 | /* stop aquistion */ |
4bf21fa4 BP |
362 | ret = usbduxsub_unlink_InURBs(this_usbduxsub); |
363 | } | |
364 | ||
365 | this_usbduxsub->ai_cmd_running = 0; | |
366 | ||
367 | return ret; | |
368 | } | |
369 | ||
e54fb9c1 GKH |
370 | /* |
371 | * This will cancel a running acquisition operation. | |
372 | * This is called by comedi but never from inside the driver. | |
373 | */ | |
0a85b6f0 MT |
374 | static int usbdux_ai_cancel(struct comedi_device *dev, |
375 | struct comedi_subdevice *s) | |
4bf21fa4 | 376 | { |
cc92fca7 | 377 | struct usbduxsub *this_usbduxsub; |
4bf21fa4 BP |
378 | int res = 0; |
379 | ||
e54fb9c1 | 380 | /* force unlink of all urbs */ |
4bf21fa4 | 381 | this_usbduxsub = dev->private; |
c0e0c26e | 382 | if (!this_usbduxsub) |
4bf21fa4 | 383 | return -EFAULT; |
c0e0c26e GKH |
384 | |
385 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: usbdux_ai_cancel\n"); | |
386 | ||
e54fb9c1 | 387 | /* prevent other CPUs from submitting new commands just now */ |
4bf21fa4 BP |
388 | down(&this_usbduxsub->sem); |
389 | if (!(this_usbduxsub->probed)) { | |
390 | up(&this_usbduxsub->sem); | |
391 | return -ENODEV; | |
392 | } | |
e54fb9c1 | 393 | /* unlink only if the urb really has been submitted */ |
4bf21fa4 BP |
394 | res = usbdux_ai_stop(this_usbduxsub, this_usbduxsub->ai_cmd_running); |
395 | up(&this_usbduxsub->sem); | |
396 | return res; | |
397 | } | |
398 | ||
e54fb9c1 | 399 | /* analogue IN - interrupt service routine */ |
4bf21fa4 | 400 | static void usbduxsub_ai_IsocIrq(struct urb *urb) |
4bf21fa4 BP |
401 | { |
402 | int i, err, n; | |
cc92fca7 | 403 | struct usbduxsub *this_usbduxsub; |
71b5f4f1 | 404 | struct comedi_device *this_comedidev; |
34c43922 | 405 | struct comedi_subdevice *s; |
4bf21fa4 | 406 | |
e54fb9c1 | 407 | /* the context variable points to the subdevice */ |
4bf21fa4 | 408 | this_comedidev = urb->context; |
cc92fca7 | 409 | /* the private structure of the subdevice is struct usbduxsub */ |
4bf21fa4 | 410 | this_usbduxsub = this_comedidev->private; |
e54fb9c1 | 411 | /* subdevice which is the AD converter */ |
4bf21fa4 BP |
412 | s = this_comedidev->subdevices + SUBDEV_AD; |
413 | ||
e54fb9c1 | 414 | /* first we test if something unusual has just happened */ |
4bf21fa4 BP |
415 | switch (urb->status) { |
416 | case 0: | |
e54fb9c1 | 417 | /* copy the result in the transfer buffer */ |
4bf21fa4 | 418 | memcpy(this_usbduxsub->inBuffer, |
0a85b6f0 | 419 | urb->transfer_buffer, SIZEINBUF); |
4bf21fa4 BP |
420 | break; |
421 | case -EILSEQ: | |
e54fb9c1 GKH |
422 | /* error in the ISOchronous data */ |
423 | /* we don't copy the data into the transfer buffer */ | |
424 | /* and recycle the last data byte */ | |
c0e0c26e GKH |
425 | dev_dbg(&urb->dev->dev, |
426 | "comedi%d: usbdux: CRC error in ISO IN stream.\n", | |
4bf21fa4 | 427 | this_usbduxsub->comedidev->minor); |
4bf21fa4 BP |
428 | |
429 | break; | |
430 | ||
4bf21fa4 BP |
431 | case -ECONNRESET: |
432 | case -ENOENT: | |
433 | case -ESHUTDOWN: | |
434 | case -ECONNABORTED: | |
e54fb9c1 | 435 | /* happens after an unlink command */ |
4bf21fa4 | 436 | if (this_usbduxsub->ai_cmd_running) { |
e54fb9c1 GKH |
437 | /* we are still running a command */ |
438 | /* tell this comedi */ | |
4bf21fa4 BP |
439 | s->async->events |= COMEDI_CB_EOA; |
440 | s->async->events |= COMEDI_CB_ERROR; | |
441 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 442 | /* stop the transfer w/o unlink */ |
4bf21fa4 BP |
443 | usbdux_ai_stop(this_usbduxsub, 0); |
444 | } | |
445 | return; | |
446 | ||
4bf21fa4 | 447 | default: |
e54fb9c1 GKH |
448 | /* a real error on the bus */ |
449 | /* pass error to comedi if we are really running a command */ | |
4bf21fa4 | 450 | if (this_usbduxsub->ai_cmd_running) { |
c0e0c26e GKH |
451 | dev_err(&urb->dev->dev, |
452 | "Non-zero urb status received in ai intr " | |
453 | "context: %d\n", urb->status); | |
4bf21fa4 BP |
454 | s->async->events |= COMEDI_CB_EOA; |
455 | s->async->events |= COMEDI_CB_ERROR; | |
456 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 457 | /* don't do an unlink here */ |
4bf21fa4 BP |
458 | usbdux_ai_stop(this_usbduxsub, 0); |
459 | } | |
460 | return; | |
461 | } | |
462 | ||
4274ea02 GKH |
463 | /* |
464 | * at this point we are reasonably sure that nothing dodgy has happened | |
465 | * are we running a command? | |
466 | */ | |
4bf21fa4 | 467 | if (unlikely((!(this_usbduxsub->ai_cmd_running)))) { |
e54fb9c1 GKH |
468 | /* |
469 | * not running a command, do not continue execution if no | |
470 | * asynchronous command is running in particular not resubmit | |
471 | */ | |
4bf21fa4 BP |
472 | return; |
473 | } | |
474 | ||
475 | urb->dev = this_usbduxsub->usbdev; | |
476 | ||
8fa07567 | 477 | /* resubmit the urb */ |
4aa3a823 | 478 | err = usb_submit_urb(urb, GFP_ATOMIC); |
4bf21fa4 | 479 | if (unlikely(err < 0)) { |
c0e0c26e GKH |
480 | dev_err(&urb->dev->dev, |
481 | "comedi_: urb resubmit failed in int-context! err=%d\n", | |
482 | err); | |
8fa07567 | 483 | if (err == -EL2NSYNC) |
c0e0c26e GKH |
484 | dev_err(&urb->dev->dev, |
485 | "buggy USB host controller or bug in IRQ " | |
486 | "handler!\n"); | |
4bf21fa4 BP |
487 | s->async->events |= COMEDI_CB_EOA; |
488 | s->async->events |= COMEDI_CB_ERROR; | |
489 | comedi_event(this_usbduxsub->comedidev, s); | |
8fa07567 | 490 | /* don't do an unlink here */ |
4bf21fa4 BP |
491 | usbdux_ai_stop(this_usbduxsub, 0); |
492 | return; | |
493 | } | |
494 | ||
495 | this_usbduxsub->ai_counter--; | |
8fa07567 | 496 | if (likely(this_usbduxsub->ai_counter > 0)) |
4bf21fa4 | 497 | return; |
8fa07567 | 498 | |
e54fb9c1 | 499 | /* timer zero, transfer measurements to comedi */ |
4bf21fa4 BP |
500 | this_usbduxsub->ai_counter = this_usbduxsub->ai_timer; |
501 | ||
e54fb9c1 | 502 | /* test, if we transmit only a fixed number of samples */ |
4bf21fa4 | 503 | if (!(this_usbduxsub->ai_continous)) { |
e54fb9c1 | 504 | /* not continous, fixed number of samples */ |
4bf21fa4 | 505 | this_usbduxsub->ai_sample_count--; |
e54fb9c1 | 506 | /* all samples received? */ |
4bf21fa4 | 507 | if (this_usbduxsub->ai_sample_count < 0) { |
e54fb9c1 | 508 | /* prevent a resubmit next time */ |
4bf21fa4 | 509 | usbdux_ai_stop(this_usbduxsub, 0); |
e54fb9c1 | 510 | /* say comedi that the acquistion is over */ |
4bf21fa4 BP |
511 | s->async->events |= COMEDI_CB_EOA; |
512 | comedi_event(this_usbduxsub->comedidev, s); | |
513 | return; | |
514 | } | |
515 | } | |
e54fb9c1 | 516 | /* get the data from the USB bus and hand it over to comedi */ |
4bf21fa4 BP |
517 | n = s->async->cmd.chanlist_len; |
518 | for (i = 0; i < n; i++) { | |
e54fb9c1 | 519 | /* transfer data */ |
4bf21fa4 | 520 | if (CR_RANGE(s->async->cmd.chanlist[i]) <= 1) { |
efe8d60a | 521 | err = comedi_buf_put |
0a85b6f0 MT |
522 | (s->async, |
523 | le16_to_cpu(this_usbduxsub->inBuffer[i]) ^ 0x800); | |
4bf21fa4 | 524 | } else { |
efe8d60a | 525 | err = comedi_buf_put |
0a85b6f0 MT |
526 | (s->async, |
527 | le16_to_cpu(this_usbduxsub->inBuffer[i])); | |
efe8d60a BP |
528 | } |
529 | if (unlikely(err == 0)) { | |
530 | /* buffer overflow */ | |
531 | usbdux_ai_stop(this_usbduxsub, 0); | |
532 | return; | |
4bf21fa4 BP |
533 | } |
534 | } | |
e54fb9c1 | 535 | /* tell comedi that data is there */ |
d4c3a565 | 536 | s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS; |
4bf21fa4 BP |
537 | comedi_event(this_usbduxsub->comedidev, s); |
538 | } | |
539 | ||
cc92fca7 | 540 | static int usbduxsub_unlink_OutURBs(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 BP |
541 | { |
542 | int i = 0; | |
4bf21fa4 BP |
543 | int err = 0; |
544 | ||
545 | if (usbduxsub_tmp && usbduxsub_tmp->urbOut) { | |
546 | for (i = 0; i < usbduxsub_tmp->numOfOutBuffers; i++) { | |
8fa07567 | 547 | if (usbduxsub_tmp->urbOut[i]) |
4bf21fa4 | 548 | usb_kill_urb(usbduxsub_tmp->urbOut[i]); |
8fa07567 | 549 | |
c0e0c26e GKH |
550 | dev_dbg(&usbduxsub_tmp->interface->dev, |
551 | "comedi: usbdux: unlinked OutURB %d: res=%d\n", | |
4bf21fa4 | 552 | i, err); |
4bf21fa4 BP |
553 | } |
554 | } | |
555 | return err; | |
556 | } | |
557 | ||
558 | /* This will cancel a running acquisition operation | |
559 | * in any context. | |
560 | */ | |
cc92fca7 | 561 | static int usbdux_ao_stop(struct usbduxsub *this_usbduxsub, int do_unlink) |
4bf21fa4 BP |
562 | { |
563 | int ret = 0; | |
564 | ||
c0e0c26e | 565 | if (!this_usbduxsub) |
4bf21fa4 | 566 | return -EFAULT; |
c0e0c26e GKH |
567 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: usbdux_ao_cancel\n"); |
568 | ||
8fa07567 | 569 | if (do_unlink) |
4bf21fa4 | 570 | ret = usbduxsub_unlink_OutURBs(this_usbduxsub); |
4bf21fa4 BP |
571 | |
572 | this_usbduxsub->ao_cmd_running = 0; | |
573 | ||
574 | return ret; | |
575 | } | |
576 | ||
8fa07567 | 577 | /* force unlink, is called by comedi */ |
0a85b6f0 MT |
578 | static int usbdux_ao_cancel(struct comedi_device *dev, |
579 | struct comedi_subdevice *s) | |
4bf21fa4 | 580 | { |
cc92fca7 | 581 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
582 | int res = 0; |
583 | ||
c0e0c26e | 584 | if (!this_usbduxsub) |
4bf21fa4 | 585 | return -EFAULT; |
c0e0c26e | 586 | |
e54fb9c1 | 587 | /* prevent other CPUs from submitting a command just now */ |
4bf21fa4 BP |
588 | down(&this_usbduxsub->sem); |
589 | if (!(this_usbduxsub->probed)) { | |
590 | up(&this_usbduxsub->sem); | |
591 | return -ENODEV; | |
592 | } | |
e54fb9c1 | 593 | /* unlink only if it is really running */ |
4bf21fa4 BP |
594 | res = usbdux_ao_stop(this_usbduxsub, this_usbduxsub->ao_cmd_running); |
595 | up(&this_usbduxsub->sem); | |
596 | return res; | |
597 | } | |
598 | ||
4bf21fa4 BP |
599 | static void usbduxsub_ao_IsocIrq(struct urb *urb) |
600 | { | |
4bf21fa4 BP |
601 | int i, ret; |
602 | int8_t *datap; | |
cc92fca7 | 603 | struct usbduxsub *this_usbduxsub; |
71b5f4f1 | 604 | struct comedi_device *this_comedidev; |
34c43922 | 605 | struct comedi_subdevice *s; |
4bf21fa4 | 606 | |
e54fb9c1 | 607 | /* the context variable points to the subdevice */ |
4bf21fa4 | 608 | this_comedidev = urb->context; |
cc92fca7 | 609 | /* the private structure of the subdevice is struct usbduxsub */ |
4bf21fa4 | 610 | this_usbduxsub = this_comedidev->private; |
4bf21fa4 BP |
611 | |
612 | s = this_comedidev->subdevices + SUBDEV_DA; | |
613 | ||
614 | switch (urb->status) { | |
615 | case 0: | |
616 | /* success */ | |
617 | break; | |
618 | ||
4bf21fa4 BP |
619 | case -ECONNRESET: |
620 | case -ENOENT: | |
621 | case -ESHUTDOWN: | |
622 | case -ECONNABORTED: | |
e54fb9c1 GKH |
623 | /* after an unlink command, unplug, ... etc */ |
624 | /* no unlink needed here. Already shutting down. */ | |
4bf21fa4 BP |
625 | if (this_usbduxsub->ao_cmd_running) { |
626 | s->async->events |= COMEDI_CB_EOA; | |
627 | comedi_event(this_usbduxsub->comedidev, s); | |
628 | usbdux_ao_stop(this_usbduxsub, 0); | |
629 | } | |
630 | return; | |
631 | ||
4bf21fa4 | 632 | default: |
e54fb9c1 | 633 | /* a real error */ |
4bf21fa4 | 634 | if (this_usbduxsub->ao_cmd_running) { |
c0e0c26e GKH |
635 | dev_err(&urb->dev->dev, |
636 | "comedi_: Non-zero urb status received in ao " | |
637 | "intr context: %d\n", urb->status); | |
4bf21fa4 BP |
638 | s->async->events |= COMEDI_CB_ERROR; |
639 | s->async->events |= COMEDI_CB_EOA; | |
640 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 641 | /* we do an unlink if we are in the high speed mode */ |
4bf21fa4 BP |
642 | usbdux_ao_stop(this_usbduxsub, 0); |
643 | } | |
644 | return; | |
645 | } | |
646 | ||
e54fb9c1 | 647 | /* are we actually running? */ |
8fa07567 | 648 | if (!(this_usbduxsub->ao_cmd_running)) |
4bf21fa4 | 649 | return; |
8fa07567 | 650 | |
e54fb9c1 | 651 | /* normal operation: executing a command in this subdevice */ |
4bf21fa4 BP |
652 | this_usbduxsub->ao_counter--; |
653 | if (this_usbduxsub->ao_counter <= 0) { | |
e54fb9c1 | 654 | /* timer zero */ |
4bf21fa4 BP |
655 | this_usbduxsub->ao_counter = this_usbduxsub->ao_timer; |
656 | ||
e54fb9c1 | 657 | /* handle non continous aquisition */ |
4bf21fa4 | 658 | if (!(this_usbduxsub->ao_continous)) { |
e54fb9c1 | 659 | /* fixed number of samples */ |
4bf21fa4 BP |
660 | this_usbduxsub->ao_sample_count--; |
661 | if (this_usbduxsub->ao_sample_count < 0) { | |
e54fb9c1 | 662 | /* all samples transmitted */ |
4bf21fa4 BP |
663 | usbdux_ao_stop(this_usbduxsub, 0); |
664 | s->async->events |= COMEDI_CB_EOA; | |
665 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 666 | /* no resubmit of the urb */ |
4bf21fa4 BP |
667 | return; |
668 | } | |
669 | } | |
e54fb9c1 | 670 | /* transmit data to the USB bus */ |
4bf21fa4 | 671 | ((uint8_t *) (urb->transfer_buffer))[0] = |
0a85b6f0 | 672 | s->async->cmd.chanlist_len; |
4bf21fa4 | 673 | for (i = 0; i < s->async->cmd.chanlist_len; i++) { |
790c5541 | 674 | short temp; |
8fa07567 | 675 | if (i >= NUMOUTCHANNELS) |
4bf21fa4 | 676 | break; |
8fa07567 | 677 | |
e54fb9c1 | 678 | /* pointer to the DA */ |
4274ea02 | 679 | datap = |
0a85b6f0 | 680 | (&(((int8_t *) urb->transfer_buffer)[i * 3 + 1])); |
e54fb9c1 | 681 | /* get the data from comedi */ |
4bf21fa4 BP |
682 | ret = comedi_buf_get(s->async, &temp); |
683 | datap[0] = temp; | |
684 | datap[1] = temp >> 8; | |
685 | datap[2] = this_usbduxsub->dac_commands[i]; | |
e54fb9c1 GKH |
686 | /* printk("data[0]=%x, data[1]=%x, data[2]=%x\n", */ |
687 | /* datap[0],datap[1],datap[2]); */ | |
4bf21fa4 | 688 | if (ret < 0) { |
c0e0c26e GKH |
689 | dev_err(&urb->dev->dev, |
690 | "comedi: buffer underflow\n"); | |
4bf21fa4 BP |
691 | s->async->events |= COMEDI_CB_EOA; |
692 | s->async->events |= COMEDI_CB_OVERFLOW; | |
693 | } | |
e54fb9c1 | 694 | /* transmit data to comedi */ |
4bf21fa4 BP |
695 | s->async->events |= COMEDI_CB_BLOCK; |
696 | comedi_event(this_usbduxsub->comedidev, s); | |
697 | } | |
698 | } | |
699 | urb->transfer_buffer_length = SIZEOUTBUF; | |
700 | urb->dev = this_usbduxsub->usbdev; | |
701 | urb->status = 0; | |
702 | if (this_usbduxsub->ao_cmd_running) { | |
703 | if (this_usbduxsub->high_speed) { | |
e54fb9c1 | 704 | /* uframes */ |
4bf21fa4 BP |
705 | urb->interval = 8; |
706 | } else { | |
e54fb9c1 | 707 | /* frames */ |
4bf21fa4 BP |
708 | urb->interval = 1; |
709 | } | |
710 | urb->number_of_packets = 1; | |
711 | urb->iso_frame_desc[0].offset = 0; | |
712 | urb->iso_frame_desc[0].length = SIZEOUTBUF; | |
713 | urb->iso_frame_desc[0].status = 0; | |
4aa3a823 | 714 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
4274ea02 | 715 | if (ret < 0) { |
c0e0c26e GKH |
716 | dev_err(&urb->dev->dev, |
717 | "comedi_: ao urb resubm failed in int-cont. " | |
718 | "ret=%d", ret); | |
8fa07567 | 719 | if (ret == EL2NSYNC) |
c0e0c26e GKH |
720 | dev_err(&urb->dev->dev, |
721 | "buggy USB host controller or bug in " | |
722 | "IRQ handling!\n"); | |
8fa07567 | 723 | |
4bf21fa4 BP |
724 | s->async->events |= COMEDI_CB_EOA; |
725 | s->async->events |= COMEDI_CB_ERROR; | |
726 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 727 | /* don't do an unlink here */ |
4bf21fa4 BP |
728 | usbdux_ao_stop(this_usbduxsub, 0); |
729 | } | |
730 | } | |
731 | } | |
732 | ||
cc92fca7 | 733 | static int usbduxsub_start(struct usbduxsub *usbduxsub) |
4bf21fa4 BP |
734 | { |
735 | int errcode = 0; | |
736 | uint8_t local_transfer_buffer[16]; | |
737 | ||
6742c0af BP |
738 | /* 7f92 to zero */ |
739 | local_transfer_buffer[0] = 0; | |
740 | errcode = usb_control_msg(usbduxsub->usbdev, | |
741 | /* create a pipe for a control transfer */ | |
742 | usb_sndctrlpipe(usbduxsub->usbdev, 0), | |
743 | /* bRequest, "Firmware" */ | |
744 | USBDUXSUB_FIRMWARE, | |
745 | /* bmRequestType */ | |
746 | VENDOR_DIR_OUT, | |
747 | /* Value */ | |
748 | USBDUXSUB_CPUCS, | |
749 | /* Index */ | |
750 | 0x0000, | |
751 | /* address of the transfer buffer */ | |
752 | local_transfer_buffer, | |
753 | /* Length */ | |
754 | 1, | |
755 | /* Timeout */ | |
ea25371a | 756 | BULK_TIMEOUT); |
6742c0af BP |
757 | if (errcode < 0) { |
758 | dev_err(&usbduxsub->interface->dev, | |
759 | "comedi_: control msg failed (start)\n"); | |
760 | return errcode; | |
4bf21fa4 BP |
761 | } |
762 | return 0; | |
763 | } | |
764 | ||
cc92fca7 | 765 | static int usbduxsub_stop(struct usbduxsub *usbduxsub) |
4bf21fa4 BP |
766 | { |
767 | int errcode = 0; | |
768 | ||
769 | uint8_t local_transfer_buffer[16]; | |
6742c0af BP |
770 | |
771 | /* 7f92 to one */ | |
772 | local_transfer_buffer[0] = 1; | |
773 | errcode = usb_control_msg(usbduxsub->usbdev, | |
774 | usb_sndctrlpipe(usbduxsub->usbdev, 0), | |
775 | /* bRequest, "Firmware" */ | |
776 | USBDUXSUB_FIRMWARE, | |
777 | /* bmRequestType */ | |
778 | VENDOR_DIR_OUT, | |
779 | /* Value */ | |
780 | USBDUXSUB_CPUCS, | |
781 | /* Index */ | |
782 | 0x0000, local_transfer_buffer, | |
783 | /* Length */ | |
784 | 1, | |
785 | /* Timeout */ | |
ea25371a | 786 | BULK_TIMEOUT); |
6742c0af BP |
787 | if (errcode < 0) { |
788 | dev_err(&usbduxsub->interface->dev, | |
789 | "comedi_: control msg failed (stop)\n"); | |
790 | return errcode; | |
4bf21fa4 BP |
791 | } |
792 | return 0; | |
793 | } | |
794 | ||
cc92fca7 | 795 | static int usbduxsub_upload(struct usbduxsub *usbduxsub, |
0a85b6f0 | 796 | uint8_t * local_transfer_buffer, |
8fa07567 | 797 | unsigned int startAddr, unsigned int len) |
4bf21fa4 BP |
798 | { |
799 | int errcode; | |
800 | ||
6742c0af | 801 | errcode = usb_control_msg(usbduxsub->usbdev, |
0a85b6f0 MT |
802 | usb_sndctrlpipe(usbduxsub->usbdev, 0), |
803 | /* brequest, firmware */ | |
804 | USBDUXSUB_FIRMWARE, | |
805 | /* bmRequestType */ | |
806 | VENDOR_DIR_OUT, | |
807 | /* value */ | |
808 | startAddr, | |
809 | /* index */ | |
810 | 0x0000, | |
811 | /* our local safe buffer */ | |
812 | local_transfer_buffer, | |
813 | /* length */ | |
814 | len, | |
815 | /* timeout */ | |
ea25371a | 816 | BULK_TIMEOUT); |
0a85b6f0 | 817 | dev_dbg(&usbduxsub->interface->dev, "comedi_: result=%d\n", errcode); |
6742c0af | 818 | if (errcode < 0) { |
0a85b6f0 | 819 | dev_err(&usbduxsub->interface->dev, "comedi_: upload failed\n"); |
6742c0af | 820 | return errcode; |
4bf21fa4 BP |
821 | } |
822 | return 0; | |
823 | } | |
824 | ||
81874ff7 BP |
825 | #define FIRMWARE_MAX_LEN 0x2000 |
826 | ||
827 | static int firmwareUpload(struct usbduxsub *usbduxsub, | |
0a85b6f0 | 828 | const u8 * firmwareBinary, int sizeFirmware) |
4bf21fa4 BP |
829 | { |
830 | int ret; | |
81874ff7 | 831 | uint8_t *fwBuf; |
4bf21fa4 | 832 | |
4274ea02 | 833 | if (!firmwareBinary) |
4bf21fa4 | 834 | return 0; |
4274ea02 | 835 | |
0a85b6f0 | 836 | if (sizeFirmware > FIRMWARE_MAX_LEN) { |
81874ff7 BP |
837 | dev_err(&usbduxsub->interface->dev, |
838 | "comedi_: usbdux firmware binary it too large for FX2.\n"); | |
839 | return -ENOMEM; | |
840 | } | |
841 | ||
842 | /* we generate a local buffer for the firmware */ | |
843 | fwBuf = kzalloc(sizeFirmware, GFP_KERNEL); | |
844 | if (!fwBuf) { | |
845 | dev_err(&usbduxsub->interface->dev, | |
846 | "comedi_: mem alloc for firmware failed\n"); | |
847 | return -ENOMEM; | |
848 | } | |
0a85b6f0 | 849 | memcpy(fwBuf, firmwareBinary, sizeFirmware); |
81874ff7 | 850 | |
4bf21fa4 BP |
851 | ret = usbduxsub_stop(usbduxsub); |
852 | if (ret < 0) { | |
c0e0c26e GKH |
853 | dev_err(&usbduxsub->interface->dev, |
854 | "comedi_: can not stop firmware\n"); | |
81874ff7 | 855 | kfree(fwBuf); |
4bf21fa4 BP |
856 | return ret; |
857 | } | |
81874ff7 BP |
858 | |
859 | ret = usbduxsub_upload(usbduxsub, fwBuf, 0, sizeFirmware); | |
4bf21fa4 | 860 | if (ret < 0) { |
c0e0c26e GKH |
861 | dev_err(&usbduxsub->interface->dev, |
862 | "comedi_: firmware upload failed\n"); | |
81874ff7 | 863 | kfree(fwBuf); |
4bf21fa4 BP |
864 | return ret; |
865 | } | |
866 | ret = usbduxsub_start(usbduxsub); | |
867 | if (ret < 0) { | |
c0e0c26e GKH |
868 | dev_err(&usbduxsub->interface->dev, |
869 | "comedi_: can not start firmware\n"); | |
81874ff7 | 870 | kfree(fwBuf); |
4bf21fa4 BP |
871 | return ret; |
872 | } | |
81874ff7 | 873 | kfree(fwBuf); |
4bf21fa4 BP |
874 | return 0; |
875 | } | |
876 | ||
cc92fca7 | 877 | static int usbduxsub_submit_InURBs(struct usbduxsub *usbduxsub) |
4bf21fa4 BP |
878 | { |
879 | int i, errFlag; | |
880 | ||
8fa07567 | 881 | if (!usbduxsub) |
4bf21fa4 | 882 | return -EFAULT; |
8fa07567 | 883 | |
4bf21fa4 BP |
884 | /* Submit all URBs and start the transfer on the bus */ |
885 | for (i = 0; i < usbduxsub->numOfInBuffers; i++) { | |
8fa07567 | 886 | /* in case of a resubmission after an unlink... */ |
4bf21fa4 BP |
887 | usbduxsub->urbIn[i]->interval = usbduxsub->ai_interval; |
888 | usbduxsub->urbIn[i]->context = usbduxsub->comedidev; | |
889 | usbduxsub->urbIn[i]->dev = usbduxsub->usbdev; | |
890 | usbduxsub->urbIn[i]->status = 0; | |
891 | usbduxsub->urbIn[i]->transfer_flags = URB_ISO_ASAP; | |
c0e0c26e GKH |
892 | dev_dbg(&usbduxsub->interface->dev, |
893 | "comedi%d: submitting in-urb[%d]: %p,%p intv=%d\n", | |
894 | usbduxsub->comedidev->minor, i, | |
895 | (usbduxsub->urbIn[i]->context), | |
896 | (usbduxsub->urbIn[i]->dev), | |
897 | (usbduxsub->urbIn[i]->interval)); | |
4aa3a823 | 898 | errFlag = usb_submit_urb(usbduxsub->urbIn[i], GFP_ATOMIC); |
4bf21fa4 | 899 | if (errFlag) { |
c0e0c26e | 900 | dev_err(&usbduxsub->interface->dev, |
4aa3a823 | 901 | "comedi_: ai: usb_submit_urb(%d) error %d\n", |
c0e0c26e | 902 | i, errFlag); |
4bf21fa4 BP |
903 | return errFlag; |
904 | } | |
905 | } | |
906 | return 0; | |
907 | } | |
908 | ||
cc92fca7 | 909 | static int usbduxsub_submit_OutURBs(struct usbduxsub *usbduxsub) |
4bf21fa4 BP |
910 | { |
911 | int i, errFlag; | |
912 | ||
4274ea02 | 913 | if (!usbduxsub) |
4bf21fa4 | 914 | return -EFAULT; |
4274ea02 | 915 | |
4bf21fa4 | 916 | for (i = 0; i < usbduxsub->numOfOutBuffers; i++) { |
c0e0c26e GKH |
917 | dev_dbg(&usbduxsub->interface->dev, |
918 | "comedi_: submitting out-urb[%d]\n", i); | |
e54fb9c1 | 919 | /* in case of a resubmission after an unlink... */ |
4bf21fa4 BP |
920 | usbduxsub->urbOut[i]->context = usbduxsub->comedidev; |
921 | usbduxsub->urbOut[i]->dev = usbduxsub->usbdev; | |
922 | usbduxsub->urbOut[i]->status = 0; | |
923 | usbduxsub->urbOut[i]->transfer_flags = URB_ISO_ASAP; | |
4aa3a823 | 924 | errFlag = usb_submit_urb(usbduxsub->urbOut[i], GFP_ATOMIC); |
4bf21fa4 | 925 | if (errFlag) { |
c0e0c26e | 926 | dev_err(&usbduxsub->interface->dev, |
4aa3a823 | 927 | "comedi_: ao: usb_submit_urb(%d) error %d\n", |
c0e0c26e | 928 | i, errFlag); |
4bf21fa4 BP |
929 | return errFlag; |
930 | } | |
931 | } | |
932 | return 0; | |
933 | } | |
934 | ||
0a85b6f0 MT |
935 | static int usbdux_ai_cmdtest(struct comedi_device *dev, |
936 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
4bf21fa4 BP |
937 | { |
938 | int err = 0, tmp, i; | |
939 | unsigned int tmpTimer; | |
cc92fca7 | 940 | struct usbduxsub *this_usbduxsub = dev->private; |
4274ea02 GKH |
941 | |
942 | if (!(this_usbduxsub->probed)) | |
4bf21fa4 | 943 | return -ENODEV; |
4274ea02 | 944 | |
c0e0c26e GKH |
945 | dev_dbg(&this_usbduxsub->interface->dev, |
946 | "comedi%d: usbdux_ai_cmdtest\n", dev->minor); | |
947 | ||
4bf21fa4 | 948 | /* make sure triggers are valid */ |
e54fb9c1 | 949 | /* Only immediate triggers are allowed */ |
4bf21fa4 BP |
950 | tmp = cmd->start_src; |
951 | cmd->start_src &= TRIG_NOW | TRIG_INT; | |
952 | if (!cmd->start_src || tmp != cmd->start_src) | |
953 | err++; | |
954 | ||
e54fb9c1 | 955 | /* trigger should happen timed */ |
4bf21fa4 | 956 | tmp = cmd->scan_begin_src; |
e54fb9c1 | 957 | /* start a new _scan_ with a timer */ |
4bf21fa4 BP |
958 | cmd->scan_begin_src &= TRIG_TIMER; |
959 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
960 | err++; | |
961 | ||
e54fb9c1 | 962 | /* scanning is continous */ |
4bf21fa4 BP |
963 | tmp = cmd->convert_src; |
964 | cmd->convert_src &= TRIG_NOW; | |
965 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
966 | err++; | |
967 | ||
e54fb9c1 | 968 | /* issue a trigger when scan is finished and start a new scan */ |
4bf21fa4 BP |
969 | tmp = cmd->scan_end_src; |
970 | cmd->scan_end_src &= TRIG_COUNT; | |
971 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
972 | err++; | |
973 | ||
e54fb9c1 | 974 | /* trigger at the end of count events or not, stop condition or not */ |
4bf21fa4 BP |
975 | tmp = cmd->stop_src; |
976 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
977 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
978 | err++; | |
979 | ||
980 | if (err) | |
981 | return 1; | |
982 | ||
4274ea02 GKH |
983 | /* |
984 | * step 2: make sure trigger sources are unique and mutually compatible | |
828684f9 | 985 | * note that mutual compatibility is not an issue here |
4274ea02 | 986 | */ |
4bf21fa4 | 987 | if (cmd->scan_begin_src != TRIG_FOLLOW && |
0a85b6f0 MT |
988 | cmd->scan_begin_src != TRIG_EXT && |
989 | cmd->scan_begin_src != TRIG_TIMER) | |
4bf21fa4 BP |
990 | err++; |
991 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
992 | err++; | |
993 | ||
994 | if (err) | |
995 | return 2; | |
996 | ||
997 | /* step 3: make sure arguments are trivially compatible */ | |
4bf21fa4 BP |
998 | if (cmd->start_arg != 0) { |
999 | cmd->start_arg = 0; | |
1000 | err++; | |
1001 | } | |
1002 | ||
1003 | if (cmd->scan_begin_src == TRIG_FOLLOW) { | |
1004 | /* internal trigger */ | |
1005 | if (cmd->scan_begin_arg != 0) { | |
1006 | cmd->scan_begin_arg = 0; | |
1007 | err++; | |
1008 | } | |
1009 | } | |
1010 | ||
1011 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
1012 | if (this_usbduxsub->high_speed) { | |
e54fb9c1 GKH |
1013 | /* |
1014 | * In high speed mode microframes are possible. | |
1015 | * However, during one microframe we can roughly | |
1016 | * sample one channel. Thus, the more channels | |
1017 | * are in the channel list the more time we need. | |
1018 | */ | |
4bf21fa4 | 1019 | i = 1; |
e54fb9c1 | 1020 | /* find a power of 2 for the number of channels */ |
4274ea02 | 1021 | while (i < (cmd->chanlist_len)) |
4bf21fa4 | 1022 | i = i * 2; |
4274ea02 | 1023 | |
4bf21fa4 BP |
1024 | if (cmd->scan_begin_arg < (1000000 / 8 * i)) { |
1025 | cmd->scan_begin_arg = 1000000 / 8 * i; | |
1026 | err++; | |
1027 | } | |
e54fb9c1 GKH |
1028 | /* now calc the real sampling rate with all the |
1029 | * rounding errors */ | |
4bf21fa4 | 1030 | tmpTimer = |
0a85b6f0 MT |
1031 | ((unsigned int)(cmd->scan_begin_arg / 125000)) * |
1032 | 125000; | |
4bf21fa4 BP |
1033 | if (cmd->scan_begin_arg != tmpTimer) { |
1034 | cmd->scan_begin_arg = tmpTimer; | |
1035 | err++; | |
1036 | } | |
e54fb9c1 GKH |
1037 | } else { |
1038 | /* full speed */ | |
1039 | /* 1kHz scans every USB frame */ | |
4bf21fa4 BP |
1040 | if (cmd->scan_begin_arg < 1000000) { |
1041 | cmd->scan_begin_arg = 1000000; | |
1042 | err++; | |
1043 | } | |
4274ea02 GKH |
1044 | /* |
1045 | * calc the real sampling rate with the rounding errors | |
1046 | */ | |
1047 | tmpTimer = ((unsigned int)(cmd->scan_begin_arg / | |
0a85b6f0 | 1048 | 1000000)) * 1000000; |
4bf21fa4 BP |
1049 | if (cmd->scan_begin_arg != tmpTimer) { |
1050 | cmd->scan_begin_arg = tmpTimer; | |
1051 | err++; | |
1052 | } | |
1053 | } | |
1054 | } | |
e54fb9c1 | 1055 | /* the same argument */ |
4bf21fa4 BP |
1056 | if (cmd->scan_end_arg != cmd->chanlist_len) { |
1057 | cmd->scan_end_arg = cmd->chanlist_len; | |
1058 | err++; | |
1059 | } | |
1060 | ||
1061 | if (cmd->stop_src == TRIG_COUNT) { | |
1062 | /* any count is allowed */ | |
1063 | } else { | |
1064 | /* TRIG_NONE */ | |
1065 | if (cmd->stop_arg != 0) { | |
1066 | cmd->stop_arg = 0; | |
1067 | err++; | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | if (err) | |
1072 | return 3; | |
1073 | ||
1074 | return 0; | |
1075 | } | |
1076 | ||
e54fb9c1 GKH |
1077 | /* |
1078 | * creates the ADC command for the MAX1271 | |
1079 | * range is the range value from comedi | |
1080 | */ | |
4bf21fa4 BP |
1081 | static int8_t create_adc_command(unsigned int chan, int range) |
1082 | { | |
1083 | int8_t p = (range <= 1); | |
1084 | int8_t r = ((range % 2) == 0); | |
1085 | return (chan << 4) | ((p == 1) << 2) | ((r == 1) << 3); | |
1086 | } | |
1087 | ||
e54fb9c1 | 1088 | /* bulk transfers to usbdux */ |
4bf21fa4 BP |
1089 | |
1090 | #define SENDADCOMMANDS 0 | |
1091 | #define SENDDACOMMANDS 1 | |
1092 | #define SENDDIOCONFIGCOMMAND 2 | |
1093 | #define SENDDIOBITSCOMMAND 3 | |
1094 | #define SENDSINGLEAD 4 | |
1095 | #define READCOUNTERCOMMAND 5 | |
1096 | #define WRITECOUNTERCOMMAND 6 | |
1097 | #define SENDPWMON 7 | |
1098 | #define SENDPWMOFF 8 | |
1099 | ||
cc92fca7 | 1100 | static int send_dux_commands(struct usbduxsub *this_usbduxsub, int cmd_type) |
4bf21fa4 BP |
1101 | { |
1102 | int result, nsent; | |
1103 | ||
1104 | this_usbduxsub->dux_commands[0] = cmd_type; | |
1105 | #ifdef NOISY_DUX_DEBUGBUG | |
c0e0c26e | 1106 | printk(KERN_DEBUG "comedi%d: usbdux: dux_commands: ", |
0a85b6f0 | 1107 | this_usbduxsub->comedidev->minor); |
4274ea02 | 1108 | for (result = 0; result < SIZEOFDUXBUFFER; result++) |
4bf21fa4 | 1109 | printk(" %02x", this_usbduxsub->dux_commands[result]); |
4bf21fa4 BP |
1110 | printk("\n"); |
1111 | #endif | |
4aa3a823 GKH |
1112 | result = usb_bulk_msg(this_usbduxsub->usbdev, |
1113 | usb_sndbulkpipe(this_usbduxsub->usbdev, | |
1114 | COMMAND_OUT_EP), | |
1115 | this_usbduxsub->dux_commands, SIZEOFDUXBUFFER, | |
ea25371a | 1116 | &nsent, BULK_TIMEOUT); |
8fa07567 | 1117 | if (result < 0) |
c0e0c26e GKH |
1118 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: " |
1119 | "could not transmit dux_command to the usb-device, " | |
1120 | "err=%d\n", this_usbduxsub->comedidev->minor, result); | |
8fa07567 | 1121 | |
4bf21fa4 BP |
1122 | return result; |
1123 | } | |
1124 | ||
cc92fca7 | 1125 | static int receive_dux_commands(struct usbduxsub *this_usbduxsub, int command) |
4bf21fa4 BP |
1126 | { |
1127 | int result = (-EFAULT); | |
1128 | int nrec; | |
1129 | int i; | |
1130 | ||
1131 | for (i = 0; i < RETRIES; i++) { | |
4aa3a823 GKH |
1132 | result = usb_bulk_msg(this_usbduxsub->usbdev, |
1133 | usb_rcvbulkpipe(this_usbduxsub->usbdev, | |
1134 | COMMAND_IN_EP), | |
1135 | this_usbduxsub->insnBuffer, SIZEINSNBUF, | |
ea25371a | 1136 | &nrec, BULK_TIMEOUT); |
4bf21fa4 | 1137 | if (result < 0) { |
c0e0c26e GKH |
1138 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: " |
1139 | "insn: USB error %d while receiving DUX command" | |
1140 | "\n", this_usbduxsub->comedidev->minor, result); | |
4bf21fa4 BP |
1141 | return result; |
1142 | } | |
4274ea02 | 1143 | if (le16_to_cpu(this_usbduxsub->insnBuffer[0]) == command) |
4bf21fa4 | 1144 | return result; |
4bf21fa4 | 1145 | } |
4274ea02 GKH |
1146 | /* this is only reached if the data has been requested a couple of |
1147 | * times */ | |
c0e0c26e GKH |
1148 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: insn: " |
1149 | "wrong data returned from firmware: want cmd %d, got cmd %d.\n", | |
1150 | this_usbduxsub->comedidev->minor, command, | |
1151 | le16_to_cpu(this_usbduxsub->insnBuffer[0])); | |
4bf21fa4 BP |
1152 | return -EFAULT; |
1153 | } | |
1154 | ||
0a85b6f0 MT |
1155 | static int usbdux_ai_inttrig(struct comedi_device *dev, |
1156 | struct comedi_subdevice *s, unsigned int trignum) | |
4bf21fa4 BP |
1157 | { |
1158 | int ret; | |
cc92fca7 | 1159 | struct usbduxsub *this_usbduxsub = dev->private; |
4274ea02 | 1160 | if (!this_usbduxsub) |
4bf21fa4 | 1161 | return -EFAULT; |
4274ea02 | 1162 | |
4bf21fa4 BP |
1163 | down(&this_usbduxsub->sem); |
1164 | if (!(this_usbduxsub->probed)) { | |
1165 | up(&this_usbduxsub->sem); | |
1166 | return -ENODEV; | |
1167 | } | |
c0e0c26e GKH |
1168 | dev_dbg(&this_usbduxsub->interface->dev, |
1169 | "comedi%d: usbdux_ai_inttrig\n", dev->minor); | |
4bf21fa4 BP |
1170 | |
1171 | if (trignum != 0) { | |
c0e0c26e GKH |
1172 | dev_err(&this_usbduxsub->interface->dev, |
1173 | "comedi%d: usbdux_ai_inttrig: invalid trignum\n", | |
4bf21fa4 BP |
1174 | dev->minor); |
1175 | up(&this_usbduxsub->sem); | |
1176 | return -EINVAL; | |
1177 | } | |
1178 | if (!(this_usbduxsub->ai_cmd_running)) { | |
1179 | this_usbduxsub->ai_cmd_running = 1; | |
1180 | ret = usbduxsub_submit_InURBs(this_usbduxsub); | |
1181 | if (ret < 0) { | |
c0e0c26e GKH |
1182 | dev_err(&this_usbduxsub->interface->dev, |
1183 | "comedi%d: usbdux_ai_inttrig: " | |
1184 | "urbSubmit: err=%d\n", dev->minor, ret); | |
4bf21fa4 BP |
1185 | this_usbduxsub->ai_cmd_running = 0; |
1186 | up(&this_usbduxsub->sem); | |
1187 | return ret; | |
1188 | } | |
1189 | s->async->inttrig = NULL; | |
1190 | } else { | |
c0e0c26e GKH |
1191 | dev_err(&this_usbduxsub->interface->dev, |
1192 | "comedi%d: ai_inttrig but acqu is already running\n", | |
4bf21fa4 BP |
1193 | dev->minor); |
1194 | } | |
1195 | up(&this_usbduxsub->sem); | |
1196 | return 1; | |
1197 | } | |
1198 | ||
34c43922 | 1199 | static int usbdux_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
4bf21fa4 | 1200 | { |
ea6d0d4c | 1201 | struct comedi_cmd *cmd = &s->async->cmd; |
4bf21fa4 BP |
1202 | unsigned int chan, range; |
1203 | int i, ret; | |
cc92fca7 | 1204 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1205 | int result; |
1206 | ||
8fa07567 | 1207 | if (!this_usbduxsub) |
4bf21fa4 | 1208 | return -EFAULT; |
8fa07567 | 1209 | |
c0e0c26e GKH |
1210 | dev_dbg(&this_usbduxsub->interface->dev, |
1211 | "comedi%d: usbdux_ai_cmd\n", dev->minor); | |
1212 | ||
8fa07567 | 1213 | /* block other CPUs from starting an ai_cmd */ |
4bf21fa4 BP |
1214 | down(&this_usbduxsub->sem); |
1215 | ||
1216 | if (!(this_usbduxsub->probed)) { | |
1217 | up(&this_usbduxsub->sem); | |
1218 | return -ENODEV; | |
1219 | } | |
1220 | if (this_usbduxsub->ai_cmd_running) { | |
c0e0c26e GKH |
1221 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: " |
1222 | "ai_cmd not possible. Another ai_cmd is running.\n", | |
1223 | dev->minor); | |
4bf21fa4 BP |
1224 | up(&this_usbduxsub->sem); |
1225 | return -EBUSY; | |
1226 | } | |
8fa07567 | 1227 | /* set current channel of the running aquisition to zero */ |
4bf21fa4 BP |
1228 | s->async->cur_chan = 0; |
1229 | ||
1230 | this_usbduxsub->dux_commands[1] = cmd->chanlist_len; | |
1231 | for (i = 0; i < cmd->chanlist_len; ++i) { | |
1232 | chan = CR_CHAN(cmd->chanlist[i]); | |
1233 | range = CR_RANGE(cmd->chanlist[i]); | |
1234 | if (i >= NUMCHANNELS) { | |
c0e0c26e GKH |
1235 | dev_err(&this_usbduxsub->interface->dev, |
1236 | "comedi%d: channel list too long\n", | |
1237 | dev->minor); | |
4bf21fa4 BP |
1238 | break; |
1239 | } | |
1240 | this_usbduxsub->dux_commands[i + 2] = | |
0a85b6f0 | 1241 | create_adc_command(chan, range); |
4bf21fa4 BP |
1242 | } |
1243 | ||
c0e0c26e GKH |
1244 | dev_dbg(&this_usbduxsub->interface->dev, |
1245 | "comedi %d: sending commands to the usb device: size=%u\n", | |
1246 | dev->minor, NUMCHANNELS); | |
1247 | ||
4274ea02 GKH |
1248 | result = send_dux_commands(this_usbduxsub, SENDADCOMMANDS); |
1249 | if (result < 0) { | |
4bf21fa4 BP |
1250 | up(&this_usbduxsub->sem); |
1251 | return result; | |
1252 | } | |
1253 | ||
1254 | if (this_usbduxsub->high_speed) { | |
8fa07567 GKH |
1255 | /* |
1256 | * every channel gets a time window of 125us. Thus, if we | |
1257 | * sample all 8 channels we need 1ms. If we sample only one | |
1258 | * channel we need only 125us | |
1259 | */ | |
4bf21fa4 | 1260 | this_usbduxsub->ai_interval = 1; |
8fa07567 | 1261 | /* find a power of 2 for the interval */ |
4bf21fa4 BP |
1262 | while ((this_usbduxsub->ai_interval) < (cmd->chanlist_len)) { |
1263 | this_usbduxsub->ai_interval = | |
0a85b6f0 | 1264 | (this_usbduxsub->ai_interval) * 2; |
4bf21fa4 | 1265 | } |
8fa07567 | 1266 | this_usbduxsub->ai_timer = cmd->scan_begin_arg / (125000 * |
0a85b6f0 MT |
1267 | (this_usbduxsub-> |
1268 | ai_interval)); | |
4bf21fa4 | 1269 | } else { |
8fa07567 | 1270 | /* interval always 1ms */ |
4bf21fa4 BP |
1271 | this_usbduxsub->ai_interval = 1; |
1272 | this_usbduxsub->ai_timer = cmd->scan_begin_arg / 1000000; | |
1273 | } | |
1274 | if (this_usbduxsub->ai_timer < 1) { | |
c0e0c26e GKH |
1275 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: ai_cmd: " |
1276 | "timer=%d, scan_begin_arg=%d. " | |
1277 | "Not properly tested by cmdtest?\n", dev->minor, | |
1278 | this_usbduxsub->ai_timer, cmd->scan_begin_arg); | |
4bf21fa4 BP |
1279 | up(&this_usbduxsub->sem); |
1280 | return -EINVAL; | |
1281 | } | |
1282 | this_usbduxsub->ai_counter = this_usbduxsub->ai_timer; | |
1283 | ||
1284 | if (cmd->stop_src == TRIG_COUNT) { | |
e54fb9c1 | 1285 | /* data arrives as one packet */ |
4bf21fa4 BP |
1286 | this_usbduxsub->ai_sample_count = cmd->stop_arg; |
1287 | this_usbduxsub->ai_continous = 0; | |
1288 | } else { | |
e54fb9c1 | 1289 | /* continous aquisition */ |
4bf21fa4 BP |
1290 | this_usbduxsub->ai_continous = 1; |
1291 | this_usbduxsub->ai_sample_count = 0; | |
1292 | } | |
1293 | ||
1294 | if (cmd->start_src == TRIG_NOW) { | |
e54fb9c1 | 1295 | /* enable this acquisition operation */ |
4bf21fa4 BP |
1296 | this_usbduxsub->ai_cmd_running = 1; |
1297 | ret = usbduxsub_submit_InURBs(this_usbduxsub); | |
1298 | if (ret < 0) { | |
1299 | this_usbduxsub->ai_cmd_running = 0; | |
e54fb9c1 | 1300 | /* fixme: unlink here?? */ |
4bf21fa4 BP |
1301 | up(&this_usbduxsub->sem); |
1302 | return ret; | |
1303 | } | |
1304 | s->async->inttrig = NULL; | |
1305 | } else { | |
1306 | /* TRIG_INT */ | |
e54fb9c1 GKH |
1307 | /* don't enable the acquision operation */ |
1308 | /* wait for an internal signal */ | |
4bf21fa4 BP |
1309 | s->async->inttrig = usbdux_ai_inttrig; |
1310 | } | |
1311 | up(&this_usbduxsub->sem); | |
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | /* Mode 0 is used to get a single conversion on demand */ | |
0a85b6f0 MT |
1316 | static int usbdux_ai_insn_read(struct comedi_device *dev, |
1317 | struct comedi_subdevice *s, | |
90035c08 | 1318 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1319 | { |
1320 | int i; | |
790c5541 | 1321 | unsigned int one = 0; |
4bf21fa4 BP |
1322 | int chan, range; |
1323 | int err; | |
cc92fca7 | 1324 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1325 | |
c0e0c26e | 1326 | if (!this_usbduxsub) |
4bf21fa4 | 1327 | return 0; |
c0e0c26e GKH |
1328 | |
1329 | dev_dbg(&this_usbduxsub->interface->dev, | |
1330 | "comedi%d: ai_insn_read, insn->n=%d, insn->subdev=%d\n", | |
4bf21fa4 | 1331 | dev->minor, insn->n, insn->subdev); |
c0e0c26e | 1332 | |
4bf21fa4 BP |
1333 | down(&this_usbduxsub->sem); |
1334 | if (!(this_usbduxsub->probed)) { | |
1335 | up(&this_usbduxsub->sem); | |
1336 | return -ENODEV; | |
1337 | } | |
1338 | if (this_usbduxsub->ai_cmd_running) { | |
c0e0c26e GKH |
1339 | dev_err(&this_usbduxsub->interface->dev, |
1340 | "comedi%d: ai_insn_read not possible. " | |
1341 | "Async Command is running.\n", dev->minor); | |
4bf21fa4 BP |
1342 | up(&this_usbduxsub->sem); |
1343 | return 0; | |
1344 | } | |
1345 | ||
e54fb9c1 | 1346 | /* sample one channel */ |
4bf21fa4 BP |
1347 | chan = CR_CHAN(insn->chanspec); |
1348 | range = CR_RANGE(insn->chanspec); | |
e54fb9c1 | 1349 | /* set command for the first channel */ |
4bf21fa4 BP |
1350 | this_usbduxsub->dux_commands[1] = create_adc_command(chan, range); |
1351 | ||
e54fb9c1 | 1352 | /* adc commands */ |
4274ea02 GKH |
1353 | err = send_dux_commands(this_usbduxsub, SENDSINGLEAD); |
1354 | if (err < 0) { | |
4bf21fa4 BP |
1355 | up(&this_usbduxsub->sem); |
1356 | return err; | |
1357 | } | |
1358 | ||
1359 | for (i = 0; i < insn->n; i++) { | |
4274ea02 GKH |
1360 | err = receive_dux_commands(this_usbduxsub, SENDSINGLEAD); |
1361 | if (err < 0) { | |
4bf21fa4 BP |
1362 | up(&this_usbduxsub->sem); |
1363 | return 0; | |
1364 | } | |
1365 | one = le16_to_cpu(this_usbduxsub->insnBuffer[1]); | |
8fa07567 | 1366 | if (CR_RANGE(insn->chanspec) <= 1) |
4bf21fa4 | 1367 | one = one ^ 0x800; |
8fa07567 | 1368 | |
4bf21fa4 BP |
1369 | data[i] = one; |
1370 | } | |
1371 | up(&this_usbduxsub->sem); | |
1372 | return i; | |
1373 | } | |
1374 | ||
e54fb9c1 GKH |
1375 | /************************************/ |
1376 | /* analog out */ | |
4bf21fa4 | 1377 | |
0a85b6f0 MT |
1378 | static int usbdux_ao_insn_read(struct comedi_device *dev, |
1379 | struct comedi_subdevice *s, | |
90035c08 | 1380 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1381 | { |
1382 | int i; | |
1383 | int chan = CR_CHAN(insn->chanspec); | |
cc92fca7 | 1384 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1385 | |
8fa07567 | 1386 | if (!this_usbduxsub) |
4bf21fa4 | 1387 | return -EFAULT; |
8fa07567 | 1388 | |
4bf21fa4 BP |
1389 | down(&this_usbduxsub->sem); |
1390 | if (!(this_usbduxsub->probed)) { | |
1391 | up(&this_usbduxsub->sem); | |
1392 | return -ENODEV; | |
1393 | } | |
8fa07567 | 1394 | for (i = 0; i < insn->n; i++) |
4bf21fa4 | 1395 | data[i] = this_usbduxsub->outBuffer[chan]; |
8fa07567 | 1396 | |
4bf21fa4 BP |
1397 | up(&this_usbduxsub->sem); |
1398 | return i; | |
1399 | } | |
1400 | ||
0a85b6f0 MT |
1401 | static int usbdux_ao_insn_write(struct comedi_device *dev, |
1402 | struct comedi_subdevice *s, | |
90035c08 | 1403 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1404 | { |
1405 | int i, err; | |
1406 | int chan = CR_CHAN(insn->chanspec); | |
cc92fca7 | 1407 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1408 | |
8fa07567 | 1409 | if (!this_usbduxsub) |
4bf21fa4 | 1410 | return -EFAULT; |
8fa07567 | 1411 | |
c0e0c26e GKH |
1412 | dev_dbg(&this_usbduxsub->interface->dev, |
1413 | "comedi%d: ao_insn_write\n", dev->minor); | |
1414 | ||
4bf21fa4 BP |
1415 | down(&this_usbduxsub->sem); |
1416 | if (!(this_usbduxsub->probed)) { | |
1417 | up(&this_usbduxsub->sem); | |
1418 | return -ENODEV; | |
1419 | } | |
1420 | if (this_usbduxsub->ao_cmd_running) { | |
c0e0c26e GKH |
1421 | dev_err(&this_usbduxsub->interface->dev, |
1422 | "comedi%d: ao_insn_write: " | |
1423 | "ERROR: asynchronous ao_cmd is running\n", dev->minor); | |
4bf21fa4 BP |
1424 | up(&this_usbduxsub->sem); |
1425 | return 0; | |
1426 | } | |
1427 | ||
1428 | for (i = 0; i < insn->n; i++) { | |
c0e0c26e GKH |
1429 | dev_dbg(&this_usbduxsub->interface->dev, |
1430 | "comedi%d: ao_insn_write: data[chan=%d,i=%d]=%d\n", | |
4bf21fa4 | 1431 | dev->minor, chan, i, data[i]); |
c0e0c26e | 1432 | |
e54fb9c1 | 1433 | /* number of channels: 1 */ |
4bf21fa4 | 1434 | this_usbduxsub->dux_commands[1] = 1; |
e54fb9c1 | 1435 | /* one 16 bit value */ |
4bf21fa4 | 1436 | *((int16_t *) (this_usbduxsub->dux_commands + 2)) = |
0a85b6f0 | 1437 | cpu_to_le16(data[i]); |
4bf21fa4 | 1438 | this_usbduxsub->outBuffer[chan] = data[i]; |
e54fb9c1 | 1439 | /* channel number */ |
4bf21fa4 | 1440 | this_usbduxsub->dux_commands[4] = (chan << 6); |
4274ea02 GKH |
1441 | err = send_dux_commands(this_usbduxsub, SENDDACOMMANDS); |
1442 | if (err < 0) { | |
4bf21fa4 BP |
1443 | up(&this_usbduxsub->sem); |
1444 | return err; | |
1445 | } | |
1446 | } | |
1447 | up(&this_usbduxsub->sem); | |
1448 | ||
1449 | return i; | |
1450 | } | |
1451 | ||
0a85b6f0 MT |
1452 | static int usbdux_ao_inttrig(struct comedi_device *dev, |
1453 | struct comedi_subdevice *s, unsigned int trignum) | |
4bf21fa4 BP |
1454 | { |
1455 | int ret; | |
cc92fca7 | 1456 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1457 | |
8fa07567 | 1458 | if (!this_usbduxsub) |
4bf21fa4 | 1459 | return -EFAULT; |
8fa07567 | 1460 | |
4bf21fa4 BP |
1461 | down(&this_usbduxsub->sem); |
1462 | if (!(this_usbduxsub->probed)) { | |
1463 | up(&this_usbduxsub->sem); | |
1464 | return -ENODEV; | |
1465 | } | |
1466 | if (trignum != 0) { | |
c0e0c26e GKH |
1467 | dev_err(&this_usbduxsub->interface->dev, |
1468 | "comedi%d: usbdux_ao_inttrig: invalid trignum\n", | |
4bf21fa4 BP |
1469 | dev->minor); |
1470 | return -EINVAL; | |
1471 | } | |
1472 | if (!(this_usbduxsub->ao_cmd_running)) { | |
1473 | this_usbduxsub->ao_cmd_running = 1; | |
1474 | ret = usbduxsub_submit_OutURBs(this_usbduxsub); | |
1475 | if (ret < 0) { | |
c0e0c26e GKH |
1476 | dev_err(&this_usbduxsub->interface->dev, |
1477 | "comedi%d: usbdux_ao_inttrig: submitURB: " | |
1478 | "err=%d\n", dev->minor, ret); | |
4bf21fa4 BP |
1479 | this_usbduxsub->ao_cmd_running = 0; |
1480 | up(&this_usbduxsub->sem); | |
1481 | return ret; | |
1482 | } | |
1483 | s->async->inttrig = NULL; | |
1484 | } else { | |
c0e0c26e GKH |
1485 | dev_err(&this_usbduxsub->interface->dev, |
1486 | "comedi%d: ao_inttrig but acqu is already running.\n", | |
4bf21fa4 BP |
1487 | dev->minor); |
1488 | } | |
1489 | up(&this_usbduxsub->sem); | |
1490 | return 1; | |
1491 | } | |
1492 | ||
0a85b6f0 MT |
1493 | static int usbdux_ao_cmdtest(struct comedi_device *dev, |
1494 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
4bf21fa4 BP |
1495 | { |
1496 | int err = 0, tmp; | |
cc92fca7 | 1497 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1498 | |
8fa07567 | 1499 | if (!this_usbduxsub) |
4bf21fa4 | 1500 | return -EFAULT; |
8fa07567 GKH |
1501 | |
1502 | if (!(this_usbduxsub->probed)) | |
4bf21fa4 | 1503 | return -ENODEV; |
8fa07567 | 1504 | |
c0e0c26e GKH |
1505 | dev_dbg(&this_usbduxsub->interface->dev, |
1506 | "comedi%d: usbdux_ao_cmdtest\n", dev->minor); | |
1507 | ||
4bf21fa4 | 1508 | /* make sure triggers are valid */ |
e54fb9c1 | 1509 | /* Only immediate triggers are allowed */ |
4bf21fa4 BP |
1510 | tmp = cmd->start_src; |
1511 | cmd->start_src &= TRIG_NOW | TRIG_INT; | |
1512 | if (!cmd->start_src || tmp != cmd->start_src) | |
1513 | err++; | |
1514 | ||
e54fb9c1 | 1515 | /* trigger should happen timed */ |
4bf21fa4 | 1516 | tmp = cmd->scan_begin_src; |
e54fb9c1 GKH |
1517 | /* just now we scan also in the high speed mode every frame */ |
1518 | /* this is due to ehci driver limitations */ | |
4bf21fa4 | 1519 | if (0) { /* (this_usbduxsub->high_speed) */ |
e54fb9c1 GKH |
1520 | /* start immidiately a new scan */ |
1521 | /* the sampling rate is set by the coversion rate */ | |
4bf21fa4 BP |
1522 | cmd->scan_begin_src &= TRIG_FOLLOW; |
1523 | } else { | |
e54fb9c1 | 1524 | /* start a new scan (output at once) with a timer */ |
4bf21fa4 BP |
1525 | cmd->scan_begin_src &= TRIG_TIMER; |
1526 | } | |
1527 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
1528 | err++; | |
1529 | ||
e54fb9c1 | 1530 | /* scanning is continous */ |
4bf21fa4 | 1531 | tmp = cmd->convert_src; |
e54fb9c1 | 1532 | /* we always output at 1kHz just now all channels at once */ |
4bf21fa4 | 1533 | if (0) { /* (this_usbduxsub->high_speed) */ |
4274ea02 GKH |
1534 | /* |
1535 | * in usb-2.0 only one conversion it tranmitted but with 8kHz/n | |
1536 | */ | |
4bf21fa4 BP |
1537 | cmd->convert_src &= TRIG_TIMER; |
1538 | } else { | |
4274ea02 GKH |
1539 | /* all conversion events happen simultaneously with a rate of |
1540 | * 1kHz/n */ | |
4bf21fa4 BP |
1541 | cmd->convert_src &= TRIG_NOW; |
1542 | } | |
1543 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
1544 | err++; | |
1545 | ||
e54fb9c1 | 1546 | /* issue a trigger when scan is finished and start a new scan */ |
4bf21fa4 BP |
1547 | tmp = cmd->scan_end_src; |
1548 | cmd->scan_end_src &= TRIG_COUNT; | |
1549 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
1550 | err++; | |
1551 | ||
e54fb9c1 | 1552 | /* trigger at the end of count events or not, stop condition or not */ |
4bf21fa4 BP |
1553 | tmp = cmd->stop_src; |
1554 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
1555 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
1556 | err++; | |
1557 | ||
1558 | if (err) | |
1559 | return 1; | |
1560 | ||
4274ea02 GKH |
1561 | /* |
1562 | * step 2: make sure trigger sources are unique and mutually compatible | |
828684f9 | 1563 | * note that mutual compatibility is not an issue here |
4274ea02 | 1564 | */ |
4bf21fa4 | 1565 | if (cmd->scan_begin_src != TRIG_FOLLOW && |
0a85b6f0 MT |
1566 | cmd->scan_begin_src != TRIG_EXT && |
1567 | cmd->scan_begin_src != TRIG_TIMER) | |
4bf21fa4 BP |
1568 | err++; |
1569 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
1570 | err++; | |
1571 | ||
1572 | if (err) | |
1573 | return 2; | |
1574 | ||
1575 | /* step 3: make sure arguments are trivially compatible */ | |
1576 | ||
1577 | if (cmd->start_arg != 0) { | |
1578 | cmd->start_arg = 0; | |
1579 | err++; | |
1580 | } | |
1581 | ||
1582 | if (cmd->scan_begin_src == TRIG_FOLLOW) { | |
1583 | /* internal trigger */ | |
1584 | if (cmd->scan_begin_arg != 0) { | |
1585 | cmd->scan_begin_arg = 0; | |
1586 | err++; | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
1591 | /* timer */ | |
1592 | if (cmd->scan_begin_arg < 1000000) { | |
1593 | cmd->scan_begin_arg = 1000000; | |
1594 | err++; | |
1595 | } | |
1596 | } | |
e54fb9c1 | 1597 | /* not used now, is for later use */ |
4bf21fa4 BP |
1598 | if (cmd->convert_src == TRIG_TIMER) { |
1599 | if (cmd->convert_arg < 125000) { | |
1600 | cmd->convert_arg = 125000; | |
1601 | err++; | |
1602 | } | |
1603 | } | |
1604 | ||
e54fb9c1 | 1605 | /* the same argument */ |
4bf21fa4 BP |
1606 | if (cmd->scan_end_arg != cmd->chanlist_len) { |
1607 | cmd->scan_end_arg = cmd->chanlist_len; | |
1608 | err++; | |
1609 | } | |
1610 | ||
1611 | if (cmd->stop_src == TRIG_COUNT) { | |
1612 | /* any count is allowed */ | |
1613 | } else { | |
1614 | /* TRIG_NONE */ | |
1615 | if (cmd->stop_arg != 0) { | |
1616 | cmd->stop_arg = 0; | |
1617 | err++; | |
1618 | } | |
1619 | } | |
1620 | ||
c0e0c26e GKH |
1621 | dev_dbg(&this_usbduxsub->interface->dev, "comedi%d: err=%d, " |
1622 | "scan_begin_src=%d, scan_begin_arg=%d, convert_src=%d, " | |
1623 | "convert_arg=%d\n", dev->minor, err, cmd->scan_begin_src, | |
1624 | cmd->scan_begin_arg, cmd->convert_src, cmd->convert_arg); | |
4bf21fa4 BP |
1625 | |
1626 | if (err) | |
1627 | return 3; | |
1628 | ||
1629 | return 0; | |
1630 | } | |
1631 | ||
34c43922 | 1632 | static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
4bf21fa4 | 1633 | { |
ea6d0d4c | 1634 | struct comedi_cmd *cmd = &s->async->cmd; |
4bf21fa4 BP |
1635 | unsigned int chan, gain; |
1636 | int i, ret; | |
cc92fca7 | 1637 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1638 | |
8fa07567 | 1639 | if (!this_usbduxsub) |
4bf21fa4 | 1640 | return -EFAULT; |
8fa07567 | 1641 | |
4bf21fa4 BP |
1642 | down(&this_usbduxsub->sem); |
1643 | if (!(this_usbduxsub->probed)) { | |
1644 | up(&this_usbduxsub->sem); | |
1645 | return -ENODEV; | |
1646 | } | |
c0e0c26e GKH |
1647 | dev_dbg(&this_usbduxsub->interface->dev, |
1648 | "comedi%d: %s\n", dev->minor, __func__); | |
4bf21fa4 | 1649 | |
e54fb9c1 | 1650 | /* set current channel of the running aquisition to zero */ |
4bf21fa4 BP |
1651 | s->async->cur_chan = 0; |
1652 | for (i = 0; i < cmd->chanlist_len; ++i) { | |
1653 | chan = CR_CHAN(cmd->chanlist[i]); | |
1654 | gain = CR_RANGE(cmd->chanlist[i]); | |
1655 | if (i >= NUMOUTCHANNELS) { | |
c0e0c26e GKH |
1656 | dev_err(&this_usbduxsub->interface->dev, |
1657 | "comedi%d: %s: channel list too long\n", | |
1658 | dev->minor, __func__); | |
4bf21fa4 BP |
1659 | break; |
1660 | } | |
1661 | this_usbduxsub->dac_commands[i] = (chan << 6); | |
c0e0c26e GKH |
1662 | dev_dbg(&this_usbduxsub->interface->dev, |
1663 | "comedi%d: dac command for ch %d is %x\n", | |
4bf21fa4 | 1664 | dev->minor, i, this_usbduxsub->dac_commands[i]); |
4bf21fa4 BP |
1665 | } |
1666 | ||
e54fb9c1 GKH |
1667 | /* we count in steps of 1ms (125us) */ |
1668 | /* 125us mode not used yet */ | |
4bf21fa4 | 1669 | if (0) { /* (this_usbduxsub->high_speed) */ |
e54fb9c1 GKH |
1670 | /* 125us */ |
1671 | /* timing of the conversion itself: every 125 us */ | |
4bf21fa4 BP |
1672 | this_usbduxsub->ao_timer = cmd->convert_arg / 125000; |
1673 | } else { | |
e54fb9c1 GKH |
1674 | /* 1ms */ |
1675 | /* timing of the scan: we get all channels at once */ | |
4bf21fa4 | 1676 | this_usbduxsub->ao_timer = cmd->scan_begin_arg / 1000000; |
c0e0c26e GKH |
1677 | dev_dbg(&this_usbduxsub->interface->dev, |
1678 | "comedi%d: scan_begin_src=%d, scan_begin_arg=%d, " | |
1679 | "convert_src=%d, convert_arg=%d\n", dev->minor, | |
1680 | cmd->scan_begin_src, cmd->scan_begin_arg, | |
1681 | cmd->convert_src, cmd->convert_arg); | |
1682 | dev_dbg(&this_usbduxsub->interface->dev, | |
1683 | "comedi%d: ao_timer=%d (ms)\n", | |
4bf21fa4 | 1684 | dev->minor, this_usbduxsub->ao_timer); |
4bf21fa4 | 1685 | if (this_usbduxsub->ao_timer < 1) { |
c0e0c26e GKH |
1686 | dev_err(&this_usbduxsub->interface->dev, |
1687 | "comedi%d: usbdux: ao_timer=%d, " | |
1688 | "scan_begin_arg=%d. " | |
1689 | "Not properly tested by cmdtest?\n", | |
1690 | dev->minor, this_usbduxsub->ao_timer, | |
1691 | cmd->scan_begin_arg); | |
4bf21fa4 BP |
1692 | up(&this_usbduxsub->sem); |
1693 | return -EINVAL; | |
1694 | } | |
1695 | } | |
1696 | this_usbduxsub->ao_counter = this_usbduxsub->ao_timer; | |
1697 | ||
1698 | if (cmd->stop_src == TRIG_COUNT) { | |
e54fb9c1 GKH |
1699 | /* not continous */ |
1700 | /* counter */ | |
1701 | /* high speed also scans everything at once */ | |
4bf21fa4 BP |
1702 | if (0) { /* (this_usbduxsub->high_speed) */ |
1703 | this_usbduxsub->ao_sample_count = | |
0a85b6f0 | 1704 | (cmd->stop_arg) * (cmd->scan_end_arg); |
4bf21fa4 | 1705 | } else { |
e54fb9c1 GKH |
1706 | /* there's no scan as the scan has been */ |
1707 | /* perf inside the FX2 */ | |
1708 | /* data arrives as one packet */ | |
4bf21fa4 BP |
1709 | this_usbduxsub->ao_sample_count = cmd->stop_arg; |
1710 | } | |
1711 | this_usbduxsub->ao_continous = 0; | |
1712 | } else { | |
e54fb9c1 | 1713 | /* continous aquisition */ |
4bf21fa4 BP |
1714 | this_usbduxsub->ao_continous = 1; |
1715 | this_usbduxsub->ao_sample_count = 0; | |
1716 | } | |
1717 | ||
1718 | if (cmd->start_src == TRIG_NOW) { | |
e54fb9c1 | 1719 | /* enable this acquisition operation */ |
4bf21fa4 BP |
1720 | this_usbduxsub->ao_cmd_running = 1; |
1721 | ret = usbduxsub_submit_OutURBs(this_usbduxsub); | |
1722 | if (ret < 0) { | |
1723 | this_usbduxsub->ao_cmd_running = 0; | |
e54fb9c1 | 1724 | /* fixme: unlink here?? */ |
4bf21fa4 BP |
1725 | up(&this_usbduxsub->sem); |
1726 | return ret; | |
1727 | } | |
1728 | s->async->inttrig = NULL; | |
1729 | } else { | |
1730 | /* TRIG_INT */ | |
e54fb9c1 GKH |
1731 | /* submit the urbs later */ |
1732 | /* wait for an internal signal */ | |
4bf21fa4 BP |
1733 | s->async->inttrig = usbdux_ao_inttrig; |
1734 | } | |
1735 | ||
1736 | up(&this_usbduxsub->sem); | |
1737 | return 0; | |
1738 | } | |
1739 | ||
0a85b6f0 MT |
1740 | static int usbdux_dio_insn_config(struct comedi_device *dev, |
1741 | struct comedi_subdevice *s, | |
90035c08 | 1742 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1743 | { |
1744 | int chan = CR_CHAN(insn->chanspec); | |
1745 | ||
1746 | /* The input or output configuration of each digital line is | |
1747 | * configured by a special insn_config instruction. chanspec | |
1748 | * contains the channel to be changed, and data[0] contains the | |
1749 | * value COMEDI_INPUT or COMEDI_OUTPUT. */ | |
1750 | ||
1751 | switch (data[0]) { | |
1752 | case INSN_CONFIG_DIO_OUTPUT: | |
1753 | s->io_bits |= 1 << chan; /* 1 means Out */ | |
1754 | break; | |
1755 | case INSN_CONFIG_DIO_INPUT: | |
1756 | s->io_bits &= ~(1 << chan); | |
1757 | break; | |
1758 | case INSN_CONFIG_DIO_QUERY: | |
1759 | data[1] = | |
0a85b6f0 | 1760 | (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; |
4bf21fa4 BP |
1761 | break; |
1762 | default: | |
1763 | return -EINVAL; | |
1764 | break; | |
1765 | } | |
e54fb9c1 GKH |
1766 | /* we don't tell the firmware here as it would take 8 frames */ |
1767 | /* to submit the information. We do it in the insn_bits. */ | |
4bf21fa4 BP |
1768 | return insn->n; |
1769 | } | |
1770 | ||
0a85b6f0 MT |
1771 | static int usbdux_dio_insn_bits(struct comedi_device *dev, |
1772 | struct comedi_subdevice *s, | |
90035c08 | 1773 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1774 | { |
1775 | ||
cc92fca7 | 1776 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1777 | int err; |
1778 | ||
8fa07567 | 1779 | if (!this_usbduxsub) |
4bf21fa4 | 1780 | return -EFAULT; |
8fa07567 | 1781 | |
4bf21fa4 BP |
1782 | if (insn->n != 2) |
1783 | return -EINVAL; | |
1784 | ||
1785 | down(&this_usbduxsub->sem); | |
1786 | ||
1787 | if (!(this_usbduxsub->probed)) { | |
1788 | up(&this_usbduxsub->sem); | |
1789 | return -ENODEV; | |
1790 | } | |
1791 | ||
1792 | /* The insn data is a mask in data[0] and the new data | |
1793 | * in data[1], each channel cooresponding to a bit. */ | |
1794 | s->state &= ~data[0]; | |
1795 | s->state |= data[0] & data[1]; | |
1796 | this_usbduxsub->dux_commands[1] = s->io_bits; | |
1797 | this_usbduxsub->dux_commands[2] = s->state; | |
1798 | ||
e54fb9c1 GKH |
1799 | /* This command also tells the firmware to return */ |
1800 | /* the digital input lines */ | |
4274ea02 GKH |
1801 | err = send_dux_commands(this_usbduxsub, SENDDIOBITSCOMMAND); |
1802 | if (err < 0) { | |
4bf21fa4 BP |
1803 | up(&this_usbduxsub->sem); |
1804 | return err; | |
1805 | } | |
4274ea02 GKH |
1806 | err = receive_dux_commands(this_usbduxsub, SENDDIOBITSCOMMAND); |
1807 | if (err < 0) { | |
4bf21fa4 BP |
1808 | up(&this_usbduxsub->sem); |
1809 | return err; | |
1810 | } | |
1811 | ||
1812 | data[1] = le16_to_cpu(this_usbduxsub->insnBuffer[1]); | |
1813 | up(&this_usbduxsub->sem); | |
1814 | return 2; | |
1815 | } | |
1816 | ||
8fa07567 | 1817 | /* reads the 4 counters, only two are used just now */ |
0a85b6f0 MT |
1818 | static int usbdux_counter_read(struct comedi_device *dev, |
1819 | struct comedi_subdevice *s, | |
90035c08 | 1820 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1821 | { |
cc92fca7 | 1822 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1823 | int chan = insn->chanspec; |
1824 | int err; | |
1825 | ||
8fa07567 | 1826 | if (!this_usbduxsub) |
4bf21fa4 | 1827 | return -EFAULT; |
4bf21fa4 BP |
1828 | |
1829 | down(&this_usbduxsub->sem); | |
1830 | ||
1831 | if (!(this_usbduxsub->probed)) { | |
1832 | up(&this_usbduxsub->sem); | |
1833 | return -ENODEV; | |
1834 | } | |
1835 | ||
4274ea02 GKH |
1836 | err = send_dux_commands(this_usbduxsub, READCOUNTERCOMMAND); |
1837 | if (err < 0) { | |
4bf21fa4 BP |
1838 | up(&this_usbduxsub->sem); |
1839 | return err; | |
1840 | } | |
1841 | ||
4274ea02 GKH |
1842 | err = receive_dux_commands(this_usbduxsub, READCOUNTERCOMMAND); |
1843 | if (err < 0) { | |
4bf21fa4 BP |
1844 | up(&this_usbduxsub->sem); |
1845 | return err; | |
1846 | } | |
1847 | ||
1848 | data[0] = le16_to_cpu(this_usbduxsub->insnBuffer[chan + 1]); | |
1849 | up(&this_usbduxsub->sem); | |
1850 | return 1; | |
1851 | } | |
1852 | ||
0a85b6f0 MT |
1853 | static int usbdux_counter_write(struct comedi_device *dev, |
1854 | struct comedi_subdevice *s, | |
90035c08 | 1855 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1856 | { |
cc92fca7 | 1857 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1858 | int err; |
1859 | ||
8fa07567 | 1860 | if (!this_usbduxsub) |
4bf21fa4 | 1861 | return -EFAULT; |
4bf21fa4 BP |
1862 | |
1863 | down(&this_usbduxsub->sem); | |
1864 | ||
1865 | if (!(this_usbduxsub->probed)) { | |
1866 | up(&this_usbduxsub->sem); | |
1867 | return -ENODEV; | |
1868 | } | |
1869 | ||
1870 | this_usbduxsub->dux_commands[1] = insn->chanspec; | |
1871 | *((int16_t *) (this_usbduxsub->dux_commands + 2)) = cpu_to_le16(*data); | |
1872 | ||
4274ea02 GKH |
1873 | err = send_dux_commands(this_usbduxsub, WRITECOUNTERCOMMAND); |
1874 | if (err < 0) { | |
4bf21fa4 BP |
1875 | up(&this_usbduxsub->sem); |
1876 | return err; | |
1877 | } | |
1878 | ||
1879 | up(&this_usbduxsub->sem); | |
1880 | ||
1881 | return 1; | |
1882 | } | |
1883 | ||
0a85b6f0 MT |
1884 | static int usbdux_counter_config(struct comedi_device *dev, |
1885 | struct comedi_subdevice *s, | |
90035c08 | 1886 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1887 | { |
e54fb9c1 | 1888 | /* nothing to do so far */ |
4bf21fa4 BP |
1889 | return 2; |
1890 | } | |
1891 | ||
e54fb9c1 GKH |
1892 | /***********************************/ |
1893 | /* PWM */ | |
4bf21fa4 | 1894 | |
cc92fca7 | 1895 | static int usbduxsub_unlink_PwmURBs(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 | 1896 | { |
4bf21fa4 BP |
1897 | int err = 0; |
1898 | ||
1899 | if (usbduxsub_tmp && usbduxsub_tmp->urbPwm) { | |
4398ecfa | 1900 | if (usbduxsub_tmp->urbPwm) |
4bf21fa4 | 1901 | usb_kill_urb(usbduxsub_tmp->urbPwm); |
c0e0c26e GKH |
1902 | dev_dbg(&usbduxsub_tmp->interface->dev, |
1903 | "comedi: unlinked PwmURB: res=%d\n", err); | |
4bf21fa4 BP |
1904 | } |
1905 | return err; | |
1906 | } | |
1907 | ||
1908 | /* This cancels a running acquisition operation | |
1909 | * in any context. | |
1910 | */ | |
cc92fca7 | 1911 | static int usbdux_pwm_stop(struct usbduxsub *this_usbduxsub, int do_unlink) |
4bf21fa4 BP |
1912 | { |
1913 | int ret = 0; | |
1914 | ||
c0e0c26e | 1915 | if (!this_usbduxsub) |
4bf21fa4 | 1916 | return -EFAULT; |
c0e0c26e GKH |
1917 | |
1918 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: %s\n", __func__); | |
8fa07567 | 1919 | if (do_unlink) |
4bf21fa4 | 1920 | ret = usbduxsub_unlink_PwmURBs(this_usbduxsub); |
8fa07567 | 1921 | |
4bf21fa4 BP |
1922 | this_usbduxsub->pwm_cmd_running = 0; |
1923 | ||
1924 | return ret; | |
1925 | } | |
1926 | ||
8fa07567 | 1927 | /* force unlink - is called by comedi */ |
0a85b6f0 MT |
1928 | static int usbdux_pwm_cancel(struct comedi_device *dev, |
1929 | struct comedi_subdevice *s) | |
4bf21fa4 | 1930 | { |
cc92fca7 | 1931 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1932 | int res = 0; |
1933 | ||
8fa07567 | 1934 | /* unlink only if it is really running */ |
4bf21fa4 BP |
1935 | res = usbdux_pwm_stop(this_usbduxsub, this_usbduxsub->pwm_cmd_running); |
1936 | ||
c0e0c26e GKH |
1937 | dev_dbg(&this_usbduxsub->interface->dev, |
1938 | "comedi %d: sending pwm off command to the usb device.\n", | |
4bf21fa4 | 1939 | dev->minor); |
4274ea02 GKH |
1940 | res = send_dux_commands(this_usbduxsub, SENDPWMOFF); |
1941 | if (res < 0) | |
4bf21fa4 | 1942 | return res; |
4bf21fa4 BP |
1943 | |
1944 | return res; | |
1945 | } | |
1946 | ||
4bf21fa4 BP |
1947 | static void usbduxsub_pwm_irq(struct urb *urb) |
1948 | { | |
4bf21fa4 | 1949 | int ret; |
cc92fca7 | 1950 | struct usbduxsub *this_usbduxsub; |
71b5f4f1 | 1951 | struct comedi_device *this_comedidev; |
34c43922 | 1952 | struct comedi_subdevice *s; |
4bf21fa4 | 1953 | |
c0e0c26e | 1954 | /* printk(KERN_DEBUG "PWM: IRQ\n"); */ |
4bf21fa4 | 1955 | |
e54fb9c1 | 1956 | /* the context variable points to the subdevice */ |
4bf21fa4 | 1957 | this_comedidev = urb->context; |
cc92fca7 | 1958 | /* the private structure of the subdevice is struct usbduxsub */ |
4bf21fa4 | 1959 | this_usbduxsub = this_comedidev->private; |
4bf21fa4 BP |
1960 | |
1961 | s = this_comedidev->subdevices + SUBDEV_DA; | |
1962 | ||
1963 | switch (urb->status) { | |
1964 | case 0: | |
1965 | /* success */ | |
1966 | break; | |
1967 | ||
4bf21fa4 BP |
1968 | case -ECONNRESET: |
1969 | case -ENOENT: | |
1970 | case -ESHUTDOWN: | |
1971 | case -ECONNABORTED: | |
8fa07567 GKH |
1972 | /* |
1973 | * after an unlink command, unplug, ... etc | |
1974 | * no unlink needed here. Already shutting down. | |
1975 | */ | |
1976 | if (this_usbduxsub->pwm_cmd_running) | |
4bf21fa4 | 1977 | usbdux_pwm_stop(this_usbduxsub, 0); |
8fa07567 | 1978 | |
4bf21fa4 BP |
1979 | return; |
1980 | ||
4bf21fa4 | 1981 | default: |
8fa07567 | 1982 | /* a real error */ |
4bf21fa4 | 1983 | if (this_usbduxsub->pwm_cmd_running) { |
c0e0c26e GKH |
1984 | dev_err(&this_usbduxsub->interface->dev, |
1985 | "comedi_: Non-zero urb status received in " | |
1986 | "pwm intr context: %d\n", urb->status); | |
4bf21fa4 BP |
1987 | usbdux_pwm_stop(this_usbduxsub, 0); |
1988 | } | |
1989 | return; | |
1990 | } | |
1991 | ||
8fa07567 GKH |
1992 | /* are we actually running? */ |
1993 | if (!(this_usbduxsub->pwm_cmd_running)) | |
4bf21fa4 | 1994 | return; |
4bf21fa4 BP |
1995 | |
1996 | urb->transfer_buffer_length = this_usbduxsub->sizePwmBuf; | |
1997 | urb->dev = this_usbduxsub->usbdev; | |
1998 | urb->status = 0; | |
1999 | if (this_usbduxsub->pwm_cmd_running) { | |
4aa3a823 | 2000 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
4274ea02 | 2001 | if (ret < 0) { |
c0e0c26e GKH |
2002 | dev_err(&this_usbduxsub->interface->dev, |
2003 | "comedi_: pwm urb resubm failed in int-cont. " | |
2004 | "ret=%d", ret); | |
8fa07567 | 2005 | if (ret == EL2NSYNC) |
c0e0c26e GKH |
2006 | dev_err(&this_usbduxsub->interface->dev, |
2007 | "buggy USB host controller or bug in " | |
2008 | "IRQ handling!\n"); | |
8fa07567 GKH |
2009 | |
2010 | /* don't do an unlink here */ | |
4bf21fa4 BP |
2011 | usbdux_pwm_stop(this_usbduxsub, 0); |
2012 | } | |
2013 | } | |
2014 | } | |
2015 | ||
cc92fca7 | 2016 | static int usbduxsub_submit_PwmURBs(struct usbduxsub *usbduxsub) |
4bf21fa4 BP |
2017 | { |
2018 | int errFlag; | |
2019 | ||
8fa07567 | 2020 | if (!usbduxsub) |
4bf21fa4 | 2021 | return -EFAULT; |
8fa07567 | 2022 | |
c0e0c26e | 2023 | dev_dbg(&usbduxsub->interface->dev, "comedi_: submitting pwm-urb\n"); |
4bf21fa4 | 2024 | |
c0e0c26e | 2025 | /* in case of a resubmission after an unlink... */ |
4bf21fa4 | 2026 | usb_fill_bulk_urb(usbduxsub->urbPwm, |
0a85b6f0 MT |
2027 | usbduxsub->usbdev, |
2028 | usb_sndbulkpipe(usbduxsub->usbdev, PWM_EP), | |
2029 | usbduxsub->urbPwm->transfer_buffer, | |
2030 | usbduxsub->sizePwmBuf, usbduxsub_pwm_irq, | |
2031 | usbduxsub->comedidev); | |
4bf21fa4 | 2032 | |
4aa3a823 | 2033 | errFlag = usb_submit_urb(usbduxsub->urbPwm, GFP_ATOMIC); |
4bf21fa4 | 2034 | if (errFlag) { |
c0e0c26e | 2035 | dev_err(&usbduxsub->interface->dev, |
4aa3a823 | 2036 | "comedi_: usbdux: pwm: usb_submit_urb error %d\n", |
c0e0c26e | 2037 | errFlag); |
4bf21fa4 BP |
2038 | return errFlag; |
2039 | } | |
2040 | return 0; | |
2041 | } | |
2042 | ||
0a85b6f0 MT |
2043 | static int usbdux_pwm_period(struct comedi_device *dev, |
2044 | struct comedi_subdevice *s, unsigned int period) | |
4bf21fa4 | 2045 | { |
cc92fca7 | 2046 | struct usbduxsub *this_usbduxsub = dev->private; |
8fa07567 GKH |
2047 | int fx2delay = 255; |
2048 | ||
2049 | if (period < MIN_PWM_PERIOD) { | |
c0e0c26e GKH |
2050 | dev_err(&this_usbduxsub->interface->dev, |
2051 | "comedi%d: illegal period setting for pwm.\n", | |
2052 | dev->minor); | |
4bf21fa4 BP |
2053 | return -EAGAIN; |
2054 | } else { | |
0a85b6f0 | 2055 | fx2delay = period / ((int)(6 * 512 * (1.0 / 0.033))) - 6; |
4bf21fa4 | 2056 | if (fx2delay > 255) { |
c0e0c26e GKH |
2057 | dev_err(&this_usbduxsub->interface->dev, |
2058 | "comedi%d: period %d for pwm is too low.\n", | |
0a85b6f0 | 2059 | dev->minor, period); |
4bf21fa4 BP |
2060 | return -EAGAIN; |
2061 | } | |
2062 | } | |
8fa07567 GKH |
2063 | this_usbduxsub->pwmDelay = fx2delay; |
2064 | this_usbduxsub->pwmPeriod = period; | |
c0e0c26e GKH |
2065 | dev_dbg(&this_usbduxsub->interface->dev, "%s: frequ=%d, period=%d\n", |
2066 | __func__, period, fx2delay); | |
4bf21fa4 BP |
2067 | return 0; |
2068 | } | |
2069 | ||
e54fb9c1 | 2070 | /* is called from insn so there's no need to do all the sanity checks */ |
0a85b6f0 MT |
2071 | static int usbdux_pwm_start(struct comedi_device *dev, |
2072 | struct comedi_subdevice *s) | |
4bf21fa4 BP |
2073 | { |
2074 | int ret, i; | |
cc92fca7 | 2075 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 2076 | |
c0e0c26e GKH |
2077 | dev_dbg(&this_usbduxsub->interface->dev, "comedi%d: %s\n", |
2078 | dev->minor, __func__); | |
2079 | ||
4bf21fa4 | 2080 | if (this_usbduxsub->pwm_cmd_running) { |
e54fb9c1 | 2081 | /* already running */ |
4bf21fa4 BP |
2082 | return 0; |
2083 | } | |
2084 | ||
2085 | this_usbduxsub->dux_commands[1] = ((int8_t) this_usbduxsub->pwmDelay); | |
4274ea02 GKH |
2086 | ret = send_dux_commands(this_usbduxsub, SENDPWMON); |
2087 | if (ret < 0) | |
4bf21fa4 | 2088 | return ret; |
4274ea02 | 2089 | |
421f91d2 | 2090 | /* initialise the buffer */ |
4274ea02 | 2091 | for (i = 0; i < this_usbduxsub->sizePwmBuf; i++) |
4bf21fa4 | 2092 | ((char *)(this_usbduxsub->urbPwm->transfer_buffer))[i] = 0; |
4bf21fa4 BP |
2093 | |
2094 | this_usbduxsub->pwm_cmd_running = 1; | |
2095 | ret = usbduxsub_submit_PwmURBs(this_usbduxsub); | |
2096 | if (ret < 0) { | |
2097 | this_usbduxsub->pwm_cmd_running = 0; | |
2098 | return ret; | |
2099 | } | |
2100 | return 0; | |
2101 | } | |
2102 | ||
e54fb9c1 | 2103 | /* generates the bit pattern for PWM with the optional sign bit */ |
0a85b6f0 MT |
2104 | static int usbdux_pwm_pattern(struct comedi_device *dev, |
2105 | struct comedi_subdevice *s, int channel, | |
2106 | unsigned int value, unsigned int sign) | |
4bf21fa4 | 2107 | { |
cc92fca7 | 2108 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
2109 | int i, szbuf; |
2110 | char *pBuf; | |
4274ea02 GKH |
2111 | char pwm_mask; |
2112 | char sgn_mask; | |
2113 | char c; | |
4bf21fa4 | 2114 | |
4274ea02 | 2115 | if (!this_usbduxsub) |
4bf21fa4 | 2116 | return -EFAULT; |
4274ea02 | 2117 | |
e54fb9c1 | 2118 | /* this is the DIO bit which carries the PWM data */ |
4bf21fa4 | 2119 | pwm_mask = (1 << channel); |
e54fb9c1 | 2120 | /* this is the DIO bit which carries the optional direction bit */ |
4bf21fa4 | 2121 | sgn_mask = (16 << channel); |
e54fb9c1 GKH |
2122 | /* this is the buffer which will be filled with the with bit */ |
2123 | /* pattern for one period */ | |
4bf21fa4 BP |
2124 | szbuf = this_usbduxsub->sizePwmBuf; |
2125 | pBuf = (char *)(this_usbduxsub->urbPwm->transfer_buffer); | |
2126 | for (i = 0; i < szbuf; i++) { | |
2127 | c = *pBuf; | |
e54fb9c1 | 2128 | /* reset bits */ |
4bf21fa4 | 2129 | c = c & (~pwm_mask); |
e54fb9c1 | 2130 | /* set the bit as long as the index is lower than the value */ |
4bf21fa4 BP |
2131 | if (i < value) |
2132 | c = c | pwm_mask; | |
e54fb9c1 | 2133 | /* set the optional sign bit for a relay */ |
4bf21fa4 | 2134 | if (!sign) { |
e54fb9c1 | 2135 | /* positive value */ |
4bf21fa4 BP |
2136 | c = c & (~sgn_mask); |
2137 | } else { | |
e54fb9c1 | 2138 | /* negative value */ |
4bf21fa4 BP |
2139 | c = c | sgn_mask; |
2140 | } | |
2141 | *(pBuf++) = c; | |
2142 | } | |
2143 | return 1; | |
2144 | } | |
2145 | ||
0a85b6f0 MT |
2146 | static int usbdux_pwm_write(struct comedi_device *dev, |
2147 | struct comedi_subdevice *s, | |
90035c08 | 2148 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 2149 | { |
cc92fca7 | 2150 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 2151 | |
4274ea02 | 2152 | if (!this_usbduxsub) |
4bf21fa4 | 2153 | return -EFAULT; |
4bf21fa4 | 2154 | |
4274ea02 GKH |
2155 | if ((insn->n) != 1) { |
2156 | /* | |
2157 | * doesn't make sense to have more than one value here because | |
2158 | * it would just overwrite the PWM buffer a couple of times | |
2159 | */ | |
4bf21fa4 BP |
2160 | return -EINVAL; |
2161 | } | |
2162 | ||
4274ea02 GKH |
2163 | /* |
2164 | * the sign is set via a special INSN only, this gives us 8 bits for | |
2165 | * normal operation | |
2166 | * relay sign 0 by default | |
2167 | */ | |
0a85b6f0 | 2168 | return usbdux_pwm_pattern(dev, s, CR_CHAN(insn->chanspec), data[0], 0); |
4bf21fa4 BP |
2169 | } |
2170 | ||
0a85b6f0 MT |
2171 | static int usbdux_pwm_read(struct comedi_device *x1, |
2172 | struct comedi_subdevice *x2, struct comedi_insn *x3, | |
2173 | unsigned int *x4) | |
4bf21fa4 | 2174 | { |
8fa07567 | 2175 | /* not needed */ |
4bf21fa4 BP |
2176 | return -EINVAL; |
2177 | }; | |
2178 | ||
8fa07567 | 2179 | /* switches on/off PWM */ |
0a85b6f0 MT |
2180 | static int usbdux_pwm_config(struct comedi_device *dev, |
2181 | struct comedi_subdevice *s, | |
90035c08 | 2182 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 2183 | { |
cc92fca7 | 2184 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
2185 | switch (data[0]) { |
2186 | case INSN_CONFIG_ARM: | |
8fa07567 | 2187 | /* switch it on */ |
c0e0c26e GKH |
2188 | dev_dbg(&this_usbduxsub->interface->dev, |
2189 | "comedi%d: %s: pwm on\n", dev->minor, __func__); | |
8fa07567 GKH |
2190 | /* |
2191 | * if not zero the PWM is limited to a certain time which is | |
2192 | * not supported here | |
2193 | */ | |
2194 | if (data[1] != 0) | |
4bf21fa4 | 2195 | return -EINVAL; |
4bf21fa4 BP |
2196 | return usbdux_pwm_start(dev, s); |
2197 | case INSN_CONFIG_DISARM: | |
c0e0c26e GKH |
2198 | dev_dbg(&this_usbduxsub->interface->dev, |
2199 | "comedi%d: %s: pwm off\n", dev->minor, __func__); | |
4bf21fa4 BP |
2200 | return usbdux_pwm_cancel(dev, s); |
2201 | case INSN_CONFIG_GET_PWM_STATUS: | |
8fa07567 GKH |
2202 | /* |
2203 | * to check if the USB transmission has failed or in case PWM | |
2204 | * was limited to n cycles to check if it has terminated | |
2205 | */ | |
4bf21fa4 BP |
2206 | data[1] = this_usbduxsub->pwm_cmd_running; |
2207 | return 0; | |
2208 | case INSN_CONFIG_PWM_SET_PERIOD: | |
c0e0c26e GKH |
2209 | dev_dbg(&this_usbduxsub->interface->dev, |
2210 | "comedi%d: %s: setting period\n", dev->minor, __func__); | |
8fa07567 | 2211 | return usbdux_pwm_period(dev, s, data[1]); |
4bf21fa4 BP |
2212 | case INSN_CONFIG_PWM_GET_PERIOD: |
2213 | data[1] = this_usbduxsub->pwmPeriod; | |
2214 | return 0; | |
2215 | case INSN_CONFIG_PWM_SET_H_BRIDGE: | |
8fa07567 GKH |
2216 | /* value in the first byte and the sign in the second for a |
2217 | relay */ | |
4bf21fa4 | 2218 | return usbdux_pwm_pattern(dev, s, |
8fa07567 GKH |
2219 | /* the channel number */ |
2220 | CR_CHAN(insn->chanspec), | |
2221 | /* actual PWM data */ | |
2222 | data[1], | |
2223 | /* just a sign */ | |
2224 | (data[2] != 0)); | |
4bf21fa4 | 2225 | case INSN_CONFIG_PWM_GET_H_BRIDGE: |
8fa07567 | 2226 | /* values are not kept in this driver, nothing to return here */ |
4bf21fa4 BP |
2227 | return -EINVAL; |
2228 | } | |
2229 | return -EINVAL; | |
2230 | } | |
2231 | ||
8fa07567 GKH |
2232 | /* end of PWM */ |
2233 | /*****************************************************************/ | |
4bf21fa4 | 2234 | |
cc92fca7 | 2235 | static void tidy_up(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 BP |
2236 | { |
2237 | int i; | |
2238 | ||
8fa07567 | 2239 | if (!usbduxsub_tmp) |
4bf21fa4 | 2240 | return; |
c0e0c26e | 2241 | dev_dbg(&usbduxsub_tmp->interface->dev, "comedi_: tiding up\n"); |
8fa07567 GKH |
2242 | |
2243 | /* shows the usb subsystem that the driver is down */ | |
4398ecfa | 2244 | if (usbduxsub_tmp->interface) |
4bf21fa4 | 2245 | usb_set_intfdata(usbduxsub_tmp->interface, NULL); |
4bf21fa4 BP |
2246 | |
2247 | usbduxsub_tmp->probed = 0; | |
2248 | ||
2249 | if (usbduxsub_tmp->urbIn) { | |
2250 | if (usbduxsub_tmp->ai_cmd_running) { | |
2251 | usbduxsub_tmp->ai_cmd_running = 0; | |
2252 | usbduxsub_unlink_InURBs(usbduxsub_tmp); | |
2253 | } | |
2254 | for (i = 0; i < usbduxsub_tmp->numOfInBuffers; i++) { | |
4274ea02 GKH |
2255 | kfree(usbduxsub_tmp->urbIn[i]->transfer_buffer); |
2256 | usbduxsub_tmp->urbIn[i]->transfer_buffer = NULL; | |
2257 | usb_kill_urb(usbduxsub_tmp->urbIn[i]); | |
2258 | usb_free_urb(usbduxsub_tmp->urbIn[i]); | |
2259 | usbduxsub_tmp->urbIn[i] = NULL; | |
4bf21fa4 BP |
2260 | } |
2261 | kfree(usbduxsub_tmp->urbIn); | |
2262 | usbduxsub_tmp->urbIn = NULL; | |
2263 | } | |
2264 | if (usbduxsub_tmp->urbOut) { | |
2265 | if (usbduxsub_tmp->ao_cmd_running) { | |
2266 | usbduxsub_tmp->ao_cmd_running = 0; | |
2267 | usbduxsub_unlink_OutURBs(usbduxsub_tmp); | |
2268 | } | |
2269 | for (i = 0; i < usbduxsub_tmp->numOfOutBuffers; i++) { | |
2270 | if (usbduxsub_tmp->urbOut[i]->transfer_buffer) { | |
0a85b6f0 MT |
2271 | kfree(usbduxsub_tmp-> |
2272 | urbOut[i]->transfer_buffer); | |
4bf21fa4 | 2273 | usbduxsub_tmp->urbOut[i]->transfer_buffer = |
0a85b6f0 | 2274 | NULL; |
4bf21fa4 BP |
2275 | } |
2276 | if (usbduxsub_tmp->urbOut[i]) { | |
4bf21fa4 | 2277 | usb_kill_urb(usbduxsub_tmp->urbOut[i]); |
4bf21fa4 BP |
2278 | usb_free_urb(usbduxsub_tmp->urbOut[i]); |
2279 | usbduxsub_tmp->urbOut[i] = NULL; | |
2280 | } | |
2281 | } | |
2282 | kfree(usbduxsub_tmp->urbOut); | |
2283 | usbduxsub_tmp->urbOut = NULL; | |
2284 | } | |
2285 | if (usbduxsub_tmp->urbPwm) { | |
2286 | if (usbduxsub_tmp->pwm_cmd_running) { | |
2287 | usbduxsub_tmp->pwm_cmd_running = 0; | |
2288 | usbduxsub_unlink_PwmURBs(usbduxsub_tmp); | |
2289 | } | |
8fa07567 GKH |
2290 | kfree(usbduxsub_tmp->urbPwm->transfer_buffer); |
2291 | usbduxsub_tmp->urbPwm->transfer_buffer = NULL; | |
4bf21fa4 | 2292 | usb_kill_urb(usbduxsub_tmp->urbPwm); |
4bf21fa4 BP |
2293 | usb_free_urb(usbduxsub_tmp->urbPwm); |
2294 | usbduxsub_tmp->urbPwm = NULL; | |
2295 | } | |
8fa07567 GKH |
2296 | kfree(usbduxsub_tmp->inBuffer); |
2297 | usbduxsub_tmp->inBuffer = NULL; | |
2298 | kfree(usbduxsub_tmp->insnBuffer); | |
2299 | usbduxsub_tmp->insnBuffer = NULL; | |
2300 | kfree(usbduxsub_tmp->inBuffer); | |
2301 | usbduxsub_tmp->inBuffer = NULL; | |
2302 | kfree(usbduxsub_tmp->dac_commands); | |
2303 | usbduxsub_tmp->dac_commands = NULL; | |
2304 | kfree(usbduxsub_tmp->dux_commands); | |
2305 | usbduxsub_tmp->dux_commands = NULL; | |
4bf21fa4 BP |
2306 | usbduxsub_tmp->ai_cmd_running = 0; |
2307 | usbduxsub_tmp->ao_cmd_running = 0; | |
2308 | usbduxsub_tmp->pwm_cmd_running = 0; | |
2309 | } | |
2310 | ||
6742c0af BP |
2311 | static void usbdux_firmware_request_complete_handler(const struct firmware *fw, |
2312 | void *context) | |
2313 | { | |
2314 | struct usbduxsub *usbduxsub_tmp = context; | |
2315 | struct usb_device *usbdev = usbduxsub_tmp->usbdev; | |
2316 | int ret; | |
2317 | ||
2318 | if (fw == NULL) { | |
2319 | dev_err(&usbdev->dev, | |
2320 | "Firmware complete handler without firmware!\n"); | |
2321 | return; | |
2322 | } | |
2323 | ||
2324 | /* | |
2325 | * we need to upload the firmware here because fw will be | |
2326 | * freed once we've left this function | |
2327 | */ | |
81874ff7 | 2328 | ret = firmwareUpload(usbduxsub_tmp, fw->data, fw->size); |
6742c0af BP |
2329 | |
2330 | if (ret) { | |
2331 | dev_err(&usbdev->dev, | |
0a85b6f0 | 2332 | "Could not upload firmware (err=%d)\n", ret); |
9ebfbd45 | 2333 | goto out; |
6742c0af BP |
2334 | } |
2335 | comedi_usb_auto_config(usbdev, BOARDNAME); | |
9ebfbd45 JB |
2336 | out: |
2337 | release_firmware(fw); | |
6742c0af BP |
2338 | } |
2339 | ||
e54fb9c1 | 2340 | /* allocate memory for the urbs and initialise them */ |
4bf21fa4 | 2341 | static int usbduxsub_probe(struct usb_interface *uinterf, |
c0e0c26e | 2342 | const struct usb_device_id *id) |
4bf21fa4 BP |
2343 | { |
2344 | struct usb_device *udev = interface_to_usbdev(uinterf); | |
c0e0c26e | 2345 | struct device *dev = &uinterf->dev; |
4bf21fa4 BP |
2346 | int i; |
2347 | int index; | |
6742c0af | 2348 | int ret; |
4bf21fa4 | 2349 | |
c0e0c26e GKH |
2350 | dev_dbg(dev, "comedi_: usbdux_: " |
2351 | "finding a free structure for the usb-device\n"); | |
2352 | ||
4bf21fa4 | 2353 | down(&start_stop_sem); |
e54fb9c1 | 2354 | /* look for a free place in the usbdux array */ |
4bf21fa4 BP |
2355 | index = -1; |
2356 | for (i = 0; i < NUMUSBDUX; i++) { | |
2357 | if (!(usbduxsub[i].probed)) { | |
2358 | index = i; | |
2359 | break; | |
2360 | } | |
2361 | } | |
2362 | ||
e54fb9c1 | 2363 | /* no more space */ |
4bf21fa4 | 2364 | if (index == -1) { |
c0e0c26e | 2365 | dev_err(dev, "Too many usbdux-devices connected.\n"); |
4bf21fa4 | 2366 | up(&start_stop_sem); |
4aa3a823 | 2367 | return -EMFILE; |
4bf21fa4 | 2368 | } |
c0e0c26e GKH |
2369 | dev_dbg(dev, "comedi_: usbdux: " |
2370 | "usbduxsub[%d] is ready to connect to comedi.\n", index); | |
4bf21fa4 BP |
2371 | |
2372 | init_MUTEX(&(usbduxsub[index].sem)); | |
e54fb9c1 | 2373 | /* save a pointer to the usb device */ |
4bf21fa4 BP |
2374 | usbduxsub[index].usbdev = udev; |
2375 | ||
e54fb9c1 | 2376 | /* 2.6: save the interface itself */ |
4bf21fa4 | 2377 | usbduxsub[index].interface = uinterf; |
e54fb9c1 | 2378 | /* get the interface number from the interface */ |
4bf21fa4 | 2379 | usbduxsub[index].ifnum = uinterf->altsetting->desc.bInterfaceNumber; |
e54fb9c1 GKH |
2380 | /* hand the private data over to the usb subsystem */ |
2381 | /* will be needed for disconnect */ | |
4bf21fa4 | 2382 | usb_set_intfdata(uinterf, &(usbduxsub[index])); |
4bf21fa4 | 2383 | |
c0e0c26e GKH |
2384 | dev_dbg(dev, "comedi_: usbdux: ifnum=%d\n", usbduxsub[index].ifnum); |
2385 | ||
e54fb9c1 | 2386 | /* test if it is high speed (USB 2.0) */ |
4bf21fa4 | 2387 | usbduxsub[index].high_speed = |
0a85b6f0 | 2388 | (usbduxsub[index].usbdev->speed == USB_SPEED_HIGH); |
4bf21fa4 | 2389 | |
e54fb9c1 | 2390 | /* create space for the commands of the DA converter */ |
4bf21fa4 BP |
2391 | usbduxsub[index].dac_commands = kzalloc(NUMOUTCHANNELS, GFP_KERNEL); |
2392 | if (!usbduxsub[index].dac_commands) { | |
c0e0c26e GKH |
2393 | dev_err(dev, "comedi_: usbdux: " |
2394 | "error alloc space for dac commands\n"); | |
4bf21fa4 BP |
2395 | tidy_up(&(usbduxsub[index])); |
2396 | up(&start_stop_sem); | |
4aa3a823 | 2397 | return -ENOMEM; |
4bf21fa4 | 2398 | } |
e54fb9c1 | 2399 | /* create space for the commands going to the usb device */ |
4bf21fa4 BP |
2400 | usbduxsub[index].dux_commands = kzalloc(SIZEOFDUXBUFFER, GFP_KERNEL); |
2401 | if (!usbduxsub[index].dux_commands) { | |
c0e0c26e GKH |
2402 | dev_err(dev, "comedi_: usbdux: " |
2403 | "error alloc space for dac commands\n"); | |
4bf21fa4 BP |
2404 | tidy_up(&(usbduxsub[index])); |
2405 | up(&start_stop_sem); | |
4aa3a823 | 2406 | return -ENOMEM; |
4bf21fa4 | 2407 | } |
e54fb9c1 | 2408 | /* create space for the in buffer and set it to zero */ |
4bf21fa4 BP |
2409 | usbduxsub[index].inBuffer = kzalloc(SIZEINBUF, GFP_KERNEL); |
2410 | if (!(usbduxsub[index].inBuffer)) { | |
c0e0c26e GKH |
2411 | dev_err(dev, "comedi_: usbdux: " |
2412 | "could not alloc space for inBuffer\n"); | |
4bf21fa4 BP |
2413 | tidy_up(&(usbduxsub[index])); |
2414 | up(&start_stop_sem); | |
4aa3a823 | 2415 | return -ENOMEM; |
4bf21fa4 | 2416 | } |
e54fb9c1 | 2417 | /* create space of the instruction buffer */ |
4bf21fa4 BP |
2418 | usbduxsub[index].insnBuffer = kzalloc(SIZEINSNBUF, GFP_KERNEL); |
2419 | if (!(usbduxsub[index].insnBuffer)) { | |
c0e0c26e GKH |
2420 | dev_err(dev, "comedi_: usbdux: " |
2421 | "could not alloc space for insnBuffer\n"); | |
4bf21fa4 BP |
2422 | tidy_up(&(usbduxsub[index])); |
2423 | up(&start_stop_sem); | |
4aa3a823 | 2424 | return -ENOMEM; |
4bf21fa4 | 2425 | } |
e54fb9c1 | 2426 | /* create space for the outbuffer */ |
4bf21fa4 BP |
2427 | usbduxsub[index].outBuffer = kzalloc(SIZEOUTBUF, GFP_KERNEL); |
2428 | if (!(usbduxsub[index].outBuffer)) { | |
c0e0c26e GKH |
2429 | dev_err(dev, "comedi_: usbdux: " |
2430 | "could not alloc space for outBuffer\n"); | |
4bf21fa4 BP |
2431 | tidy_up(&(usbduxsub[index])); |
2432 | up(&start_stop_sem); | |
4aa3a823 | 2433 | return -ENOMEM; |
4bf21fa4 | 2434 | } |
8fa07567 | 2435 | /* setting to alternate setting 3: enabling iso ep and bulk ep. */ |
4bf21fa4 | 2436 | i = usb_set_interface(usbduxsub[index].usbdev, |
8fa07567 | 2437 | usbduxsub[index].ifnum, 3); |
4bf21fa4 | 2438 | if (i < 0) { |
c0e0c26e GKH |
2439 | dev_err(dev, "comedi_: usbdux%d: " |
2440 | "could not set alternate setting 3 in high speed.\n", | |
2441 | index); | |
4bf21fa4 BP |
2442 | tidy_up(&(usbduxsub[index])); |
2443 | up(&start_stop_sem); | |
4aa3a823 | 2444 | return -ENODEV; |
4bf21fa4 | 2445 | } |
8fa07567 | 2446 | if (usbduxsub[index].high_speed) |
4bf21fa4 | 2447 | usbduxsub[index].numOfInBuffers = NUMOFINBUFFERSHIGH; |
8fa07567 | 2448 | else |
4bf21fa4 | 2449 | usbduxsub[index].numOfInBuffers = NUMOFINBUFFERSFULL; |
8fa07567 | 2450 | |
4bf21fa4 | 2451 | usbduxsub[index].urbIn = |
0a85b6f0 MT |
2452 | kzalloc(sizeof(struct urb *) * usbduxsub[index].numOfInBuffers, |
2453 | GFP_KERNEL); | |
4bf21fa4 | 2454 | if (!(usbduxsub[index].urbIn)) { |
c0e0c26e | 2455 | dev_err(dev, "comedi_: usbdux: Could not alloc. urbIn array\n"); |
4bf21fa4 BP |
2456 | tidy_up(&(usbduxsub[index])); |
2457 | up(&start_stop_sem); | |
4aa3a823 | 2458 | return -ENOMEM; |
4bf21fa4 BP |
2459 | } |
2460 | for (i = 0; i < usbduxsub[index].numOfInBuffers; i++) { | |
e54fb9c1 | 2461 | /* one frame: 1ms */ |
4aa3a823 | 2462 | usbduxsub[index].urbIn[i] = usb_alloc_urb(1, GFP_KERNEL); |
4bf21fa4 | 2463 | if (usbduxsub[index].urbIn[i] == NULL) { |
c0e0c26e GKH |
2464 | dev_err(dev, "comedi_: usbdux%d: " |
2465 | "Could not alloc. urb(%d)\n", index, i); | |
4bf21fa4 BP |
2466 | tidy_up(&(usbduxsub[index])); |
2467 | up(&start_stop_sem); | |
4aa3a823 | 2468 | return -ENOMEM; |
4bf21fa4 BP |
2469 | } |
2470 | usbduxsub[index].urbIn[i]->dev = usbduxsub[index].usbdev; | |
e54fb9c1 GKH |
2471 | /* will be filled later with a pointer to the comedi-device */ |
2472 | /* and ONLY then the urb should be submitted */ | |
4bf21fa4 BP |
2473 | usbduxsub[index].urbIn[i]->context = NULL; |
2474 | usbduxsub[index].urbIn[i]->pipe = | |
0a85b6f0 | 2475 | usb_rcvisocpipe(usbduxsub[index].usbdev, ISOINEP); |
4bf21fa4 BP |
2476 | usbduxsub[index].urbIn[i]->transfer_flags = URB_ISO_ASAP; |
2477 | usbduxsub[index].urbIn[i]->transfer_buffer = | |
0a85b6f0 | 2478 | kzalloc(SIZEINBUF, GFP_KERNEL); |
4bf21fa4 | 2479 | if (!(usbduxsub[index].urbIn[i]->transfer_buffer)) { |
c0e0c26e GKH |
2480 | dev_err(dev, "comedi_: usbdux%d: " |
2481 | "could not alloc. transb.\n", index); | |
4bf21fa4 BP |
2482 | tidy_up(&(usbduxsub[index])); |
2483 | up(&start_stop_sem); | |
4aa3a823 | 2484 | return -ENOMEM; |
4bf21fa4 BP |
2485 | } |
2486 | usbduxsub[index].urbIn[i]->complete = usbduxsub_ai_IsocIrq; | |
2487 | usbduxsub[index].urbIn[i]->number_of_packets = 1; | |
2488 | usbduxsub[index].urbIn[i]->transfer_buffer_length = SIZEINBUF; | |
2489 | usbduxsub[index].urbIn[i]->iso_frame_desc[0].offset = 0; | |
2490 | usbduxsub[index].urbIn[i]->iso_frame_desc[0].length = SIZEINBUF; | |
2491 | } | |
2492 | ||
8fa07567 GKH |
2493 | /* out */ |
2494 | if (usbduxsub[index].high_speed) | |
4bf21fa4 | 2495 | usbduxsub[index].numOfOutBuffers = NUMOFOUTBUFFERSHIGH; |
8fa07567 | 2496 | else |
4bf21fa4 | 2497 | usbduxsub[index].numOfOutBuffers = NUMOFOUTBUFFERSFULL; |
8fa07567 | 2498 | |
4bf21fa4 | 2499 | usbduxsub[index].urbOut = |
0a85b6f0 MT |
2500 | kzalloc(sizeof(struct urb *) * usbduxsub[index].numOfOutBuffers, |
2501 | GFP_KERNEL); | |
4bf21fa4 | 2502 | if (!(usbduxsub[index].urbOut)) { |
c0e0c26e GKH |
2503 | dev_err(dev, "comedi_: usbdux: " |
2504 | "Could not alloc. urbOut array\n"); | |
4bf21fa4 BP |
2505 | tidy_up(&(usbduxsub[index])); |
2506 | up(&start_stop_sem); | |
4aa3a823 | 2507 | return -ENOMEM; |
4bf21fa4 BP |
2508 | } |
2509 | for (i = 0; i < usbduxsub[index].numOfOutBuffers; i++) { | |
e54fb9c1 | 2510 | /* one frame: 1ms */ |
4aa3a823 | 2511 | usbduxsub[index].urbOut[i] = usb_alloc_urb(1, GFP_KERNEL); |
4bf21fa4 | 2512 | if (usbduxsub[index].urbOut[i] == NULL) { |
c0e0c26e GKH |
2513 | dev_err(dev, "comedi_: usbdux%d: " |
2514 | "Could not alloc. urb(%d)\n", index, i); | |
4bf21fa4 BP |
2515 | tidy_up(&(usbduxsub[index])); |
2516 | up(&start_stop_sem); | |
4aa3a823 | 2517 | return -ENOMEM; |
4bf21fa4 BP |
2518 | } |
2519 | usbduxsub[index].urbOut[i]->dev = usbduxsub[index].usbdev; | |
e54fb9c1 GKH |
2520 | /* will be filled later with a pointer to the comedi-device */ |
2521 | /* and ONLY then the urb should be submitted */ | |
4bf21fa4 BP |
2522 | usbduxsub[index].urbOut[i]->context = NULL; |
2523 | usbduxsub[index].urbOut[i]->pipe = | |
0a85b6f0 | 2524 | usb_sndisocpipe(usbduxsub[index].usbdev, ISOOUTEP); |
4bf21fa4 BP |
2525 | usbduxsub[index].urbOut[i]->transfer_flags = URB_ISO_ASAP; |
2526 | usbduxsub[index].urbOut[i]->transfer_buffer = | |
0a85b6f0 | 2527 | kzalloc(SIZEOUTBUF, GFP_KERNEL); |
4bf21fa4 | 2528 | if (!(usbduxsub[index].urbOut[i]->transfer_buffer)) { |
c0e0c26e GKH |
2529 | dev_err(dev, "comedi_: usbdux%d: " |
2530 | "could not alloc. transb.\n", index); | |
4bf21fa4 BP |
2531 | tidy_up(&(usbduxsub[index])); |
2532 | up(&start_stop_sem); | |
4aa3a823 | 2533 | return -ENOMEM; |
4bf21fa4 BP |
2534 | } |
2535 | usbduxsub[index].urbOut[i]->complete = usbduxsub_ao_IsocIrq; | |
2536 | usbduxsub[index].urbOut[i]->number_of_packets = 1; | |
2537 | usbduxsub[index].urbOut[i]->transfer_buffer_length = SIZEOUTBUF; | |
2538 | usbduxsub[index].urbOut[i]->iso_frame_desc[0].offset = 0; | |
2539 | usbduxsub[index].urbOut[i]->iso_frame_desc[0].length = | |
0a85b6f0 | 2540 | SIZEOUTBUF; |
4bf21fa4 | 2541 | if (usbduxsub[index].high_speed) { |
e54fb9c1 | 2542 | /* uframes */ |
4bf21fa4 BP |
2543 | usbduxsub[index].urbOut[i]->interval = 8; |
2544 | } else { | |
e54fb9c1 | 2545 | /* frames */ |
4bf21fa4 BP |
2546 | usbduxsub[index].urbOut[i]->interval = 1; |
2547 | } | |
2548 | } | |
2549 | ||
e54fb9c1 | 2550 | /* pwm */ |
4bf21fa4 | 2551 | if (usbduxsub[index].high_speed) { |
4274ea02 GKH |
2552 | /* max bulk ep size in high speed */ |
2553 | usbduxsub[index].sizePwmBuf = 512; | |
4aa3a823 | 2554 | usbduxsub[index].urbPwm = usb_alloc_urb(0, GFP_KERNEL); |
4bf21fa4 | 2555 | if (usbduxsub[index].urbPwm == NULL) { |
c0e0c26e GKH |
2556 | dev_err(dev, "comedi_: usbdux%d: " |
2557 | "Could not alloc. pwm urb\n", index); | |
4bf21fa4 BP |
2558 | tidy_up(&(usbduxsub[index])); |
2559 | up(&start_stop_sem); | |
4aa3a823 | 2560 | return -ENOMEM; |
4bf21fa4 BP |
2561 | } |
2562 | usbduxsub[index].urbPwm->transfer_buffer = | |
0a85b6f0 | 2563 | kzalloc(usbduxsub[index].sizePwmBuf, GFP_KERNEL); |
4bf21fa4 | 2564 | if (!(usbduxsub[index].urbPwm->transfer_buffer)) { |
c0e0c26e GKH |
2565 | dev_err(dev, "comedi_: usbdux%d: " |
2566 | "could not alloc. transb. for pwm\n", index); | |
4bf21fa4 BP |
2567 | tidy_up(&(usbduxsub[index])); |
2568 | up(&start_stop_sem); | |
4aa3a823 | 2569 | return -ENOMEM; |
4bf21fa4 BP |
2570 | } |
2571 | } else { | |
2572 | usbduxsub[index].urbPwm = NULL; | |
2573 | usbduxsub[index].sizePwmBuf = 0; | |
2574 | } | |
2575 | ||
2576 | usbduxsub[index].ai_cmd_running = 0; | |
2577 | usbduxsub[index].ao_cmd_running = 0; | |
2578 | usbduxsub[index].pwm_cmd_running = 0; | |
2579 | ||
e54fb9c1 | 2580 | /* we've reached the bottom of the function */ |
4bf21fa4 BP |
2581 | usbduxsub[index].probed = 1; |
2582 | up(&start_stop_sem); | |
6742c0af BP |
2583 | |
2584 | ret = request_firmware_nowait(THIS_MODULE, | |
2585 | FW_ACTION_HOTPLUG, | |
81874ff7 | 2586 | "usbdux_firmware.bin", |
6742c0af | 2587 | &udev->dev, |
9ebfbd45 | 2588 | GFP_KERNEL, |
6742c0af BP |
2589 | usbduxsub + index, |
2590 | usbdux_firmware_request_complete_handler); | |
2591 | ||
2592 | if (ret) { | |
2593 | dev_err(dev, "Could not load firmware (err=%d)\n", ret); | |
2594 | return ret; | |
2595 | } | |
2596 | ||
c0e0c26e GKH |
2597 | dev_info(dev, "comedi_: usbdux%d " |
2598 | "has been successfully initialised.\n", index); | |
e54fb9c1 | 2599 | /* success */ |
4bf21fa4 | 2600 | return 0; |
4bf21fa4 BP |
2601 | } |
2602 | ||
4bf21fa4 BP |
2603 | static void usbduxsub_disconnect(struct usb_interface *intf) |
2604 | { | |
cc92fca7 | 2605 | struct usbduxsub *usbduxsub_tmp = usb_get_intfdata(intf); |
4bf21fa4 | 2606 | struct usb_device *udev = interface_to_usbdev(intf); |
4398ecfa | 2607 | |
4bf21fa4 | 2608 | if (!usbduxsub_tmp) { |
c0e0c26e GKH |
2609 | dev_err(&intf->dev, |
2610 | "comedi_: disconnect called with null pointer.\n"); | |
4bf21fa4 BP |
2611 | return; |
2612 | } | |
2613 | if (usbduxsub_tmp->usbdev != udev) { | |
0a85b6f0 | 2614 | dev_err(&intf->dev, "comedi_: BUG! called with wrong ptr!!!\n"); |
4bf21fa4 BP |
2615 | return; |
2616 | } | |
6742c0af | 2617 | comedi_usb_auto_unconfig(udev); |
4bf21fa4 BP |
2618 | down(&start_stop_sem); |
2619 | down(&usbduxsub_tmp->sem); | |
2620 | tidy_up(usbduxsub_tmp); | |
2621 | up(&usbduxsub_tmp->sem); | |
2622 | up(&start_stop_sem); | |
c0e0c26e | 2623 | dev_dbg(&intf->dev, "comedi_: disconnected from the usb\n"); |
4bf21fa4 BP |
2624 | } |
2625 | ||
8fa07567 | 2626 | /* is called when comedi-config is called */ |
0707bb04 | 2627 | static int usbdux_attach(struct comedi_device *dev, struct comedi_devconfig *it) |
4bf21fa4 BP |
2628 | { |
2629 | int ret; | |
2630 | int index; | |
2631 | int i; | |
cc92fca7 | 2632 | struct usbduxsub *udev; |
c0e0c26e | 2633 | |
34c43922 | 2634 | struct comedi_subdevice *s = NULL; |
4bf21fa4 BP |
2635 | dev->private = NULL; |
2636 | ||
2637 | down(&start_stop_sem); | |
4274ea02 GKH |
2638 | /* find a valid device which has been detected by the probe function of |
2639 | * the usb */ | |
4bf21fa4 BP |
2640 | index = -1; |
2641 | for (i = 0; i < NUMUSBDUX; i++) { | |
2642 | if ((usbduxsub[i].probed) && (!usbduxsub[i].attached)) { | |
2643 | index = i; | |
2644 | break; | |
2645 | } | |
2646 | } | |
2647 | ||
2648 | if (index < 0) { | |
c0e0c26e GKH |
2649 | printk(KERN_ERR "comedi%d: usbdux: error: attach failed, no " |
2650 | "usbdux devs connected to the usb bus.\n", dev->minor); | |
4bf21fa4 BP |
2651 | up(&start_stop_sem); |
2652 | return -ENODEV; | |
2653 | } | |
2654 | ||
c0e0c26e GKH |
2655 | udev = &usbduxsub[index]; |
2656 | down(&udev->sem); | |
e54fb9c1 | 2657 | /* pointer back to the corresponding comedi device */ |
c0e0c26e | 2658 | udev->comedidev = dev; |
4bf21fa4 | 2659 | |
e54fb9c1 | 2660 | /* trying to upload the firmware into the chip */ |
4bf21fa4 | 2661 | if (comedi_aux_data(it->options, 0) && |
0a85b6f0 | 2662 | it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]) { |
81874ff7 BP |
2663 | firmwareUpload(udev, comedi_aux_data(it->options, 0), |
2664 | it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]); | |
4bf21fa4 BP |
2665 | } |
2666 | ||
2667 | dev->board_name = BOARDNAME; | |
2668 | ||
2669 | /* set number of subdevices */ | |
c0e0c26e | 2670 | if (udev->high_speed) { |
e54fb9c1 | 2671 | /* with pwm */ |
4bf21fa4 BP |
2672 | dev->n_subdevices = 5; |
2673 | } else { | |
e54fb9c1 | 2674 | /* without pwm */ |
4bf21fa4 BP |
2675 | dev->n_subdevices = 4; |
2676 | } | |
2677 | ||
e54fb9c1 | 2678 | /* allocate space for the subdevices */ |
4274ea02 GKH |
2679 | ret = alloc_subdevices(dev, dev->n_subdevices); |
2680 | if (ret < 0) { | |
c0e0c26e GKH |
2681 | dev_err(&udev->interface->dev, |
2682 | "comedi%d: error alloc space for subdev\n", dev->minor); | |
4bf21fa4 BP |
2683 | up(&start_stop_sem); |
2684 | return ret; | |
2685 | } | |
2686 | ||
c0e0c26e | 2687 | dev_info(&udev->interface->dev, |
0a85b6f0 MT |
2688 | "comedi%d: usb-device %d is attached to comedi.\n", |
2689 | dev->minor, index); | |
e54fb9c1 | 2690 | /* private structure is also simply the usb-structure */ |
c0e0c26e | 2691 | dev->private = udev; |
4bf21fa4 | 2692 | |
e54fb9c1 | 2693 | /* the first subdevice is the A/D converter */ |
4bf21fa4 | 2694 | s = dev->subdevices + SUBDEV_AD; |
e54fb9c1 GKH |
2695 | /* the URBs get the comedi subdevice */ |
2696 | /* which is responsible for reading */ | |
2697 | /* this is the subdevice which reads data */ | |
4bf21fa4 | 2698 | dev->read_subdev = s; |
e54fb9c1 GKH |
2699 | /* the subdevice receives as private structure the */ |
2700 | /* usb-structure */ | |
4bf21fa4 | 2701 | s->private = NULL; |
e54fb9c1 | 2702 | /* analog input */ |
4bf21fa4 | 2703 | s->type = COMEDI_SUBD_AI; |
e54fb9c1 | 2704 | /* readable and ref is to ground */ |
4bf21fa4 | 2705 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ; |
e54fb9c1 | 2706 | /* 8 channels */ |
4bf21fa4 | 2707 | s->n_chan = 8; |
e54fb9c1 | 2708 | /* length of the channellist */ |
4bf21fa4 | 2709 | s->len_chanlist = 8; |
e54fb9c1 | 2710 | /* callback functions */ |
4bf21fa4 BP |
2711 | s->insn_read = usbdux_ai_insn_read; |
2712 | s->do_cmdtest = usbdux_ai_cmdtest; | |
2713 | s->do_cmd = usbdux_ai_cmd; | |
2714 | s->cancel = usbdux_ai_cancel; | |
e54fb9c1 | 2715 | /* max value from the A/D converter (12bit) */ |
4bf21fa4 | 2716 | s->maxdata = 0xfff; |
e54fb9c1 | 2717 | /* range table to convert to physical units */ |
4bf21fa4 | 2718 | s->range_table = (&range_usbdux_ai_range); |
4bf21fa4 | 2719 | |
e54fb9c1 | 2720 | /* analog out */ |
4bf21fa4 | 2721 | s = dev->subdevices + SUBDEV_DA; |
e54fb9c1 | 2722 | /* analog out */ |
4bf21fa4 | 2723 | s->type = COMEDI_SUBD_AO; |
e54fb9c1 | 2724 | /* backward pointer */ |
4bf21fa4 | 2725 | dev->write_subdev = s; |
e54fb9c1 GKH |
2726 | /* the subdevice receives as private structure the */ |
2727 | /* usb-structure */ | |
4bf21fa4 | 2728 | s->private = NULL; |
e54fb9c1 | 2729 | /* are writable */ |
4bf21fa4 | 2730 | s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE; |
e54fb9c1 | 2731 | /* 4 channels */ |
4bf21fa4 | 2732 | s->n_chan = 4; |
e54fb9c1 | 2733 | /* length of the channellist */ |
4bf21fa4 | 2734 | s->len_chanlist = 4; |
e54fb9c1 | 2735 | /* 12 bit resolution */ |
4bf21fa4 | 2736 | s->maxdata = 0x0fff; |
e54fb9c1 | 2737 | /* bipolar range */ |
4bf21fa4 | 2738 | s->range_table = (&range_usbdux_ao_range); |
e54fb9c1 | 2739 | /* callback */ |
4bf21fa4 BP |
2740 | s->do_cmdtest = usbdux_ao_cmdtest; |
2741 | s->do_cmd = usbdux_ao_cmd; | |
2742 | s->cancel = usbdux_ao_cancel; | |
2743 | s->insn_read = usbdux_ao_insn_read; | |
2744 | s->insn_write = usbdux_ao_insn_write; | |
2745 | ||
e54fb9c1 | 2746 | /* digital I/O */ |
4bf21fa4 BP |
2747 | s = dev->subdevices + SUBDEV_DIO; |
2748 | s->type = COMEDI_SUBD_DIO; | |
2749 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
2750 | s->n_chan = 8; | |
2751 | s->maxdata = 1; | |
2752 | s->range_table = (&range_digital); | |
2753 | s->insn_bits = usbdux_dio_insn_bits; | |
2754 | s->insn_config = usbdux_dio_insn_config; | |
e54fb9c1 | 2755 | /* we don't use it */ |
4bf21fa4 BP |
2756 | s->private = NULL; |
2757 | ||
e54fb9c1 | 2758 | /* counter */ |
4bf21fa4 BP |
2759 | s = dev->subdevices + SUBDEV_COUNTER; |
2760 | s->type = COMEDI_SUBD_COUNTER; | |
2761 | s->subdev_flags = SDF_WRITABLE | SDF_READABLE; | |
2762 | s->n_chan = 4; | |
2763 | s->maxdata = 0xFFFF; | |
2764 | s->insn_read = usbdux_counter_read; | |
2765 | s->insn_write = usbdux_counter_write; | |
2766 | s->insn_config = usbdux_counter_config; | |
2767 | ||
c0e0c26e | 2768 | if (udev->high_speed) { |
e54fb9c1 | 2769 | /* timer / pwm */ |
4bf21fa4 BP |
2770 | s = dev->subdevices + SUBDEV_PWM; |
2771 | s->type = COMEDI_SUBD_PWM; | |
2772 | s->subdev_flags = SDF_WRITABLE | SDF_PWM_HBRIDGE; | |
2773 | s->n_chan = 8; | |
e54fb9c1 | 2774 | /* this defines the max duty cycle resolution */ |
c0e0c26e | 2775 | s->maxdata = udev->sizePwmBuf; |
4bf21fa4 BP |
2776 | s->insn_write = usbdux_pwm_write; |
2777 | s->insn_read = usbdux_pwm_read; | |
2778 | s->insn_config = usbdux_pwm_config; | |
2779 | usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD); | |
2780 | } | |
e54fb9c1 | 2781 | /* finally decide that it's attached */ |
c0e0c26e | 2782 | udev->attached = 1; |
4bf21fa4 | 2783 | |
c0e0c26e | 2784 | up(&udev->sem); |
4bf21fa4 BP |
2785 | |
2786 | up(&start_stop_sem); | |
2787 | ||
c0e0c26e GKH |
2788 | dev_info(&udev->interface->dev, "comedi%d: attached to usbdux.\n", |
2789 | dev->minor); | |
4bf21fa4 BP |
2790 | |
2791 | return 0; | |
2792 | } | |
2793 | ||
71b5f4f1 | 2794 | static int usbdux_detach(struct comedi_device *dev) |
4bf21fa4 | 2795 | { |
cc92fca7 | 2796 | struct usbduxsub *usbduxsub_tmp; |
4bf21fa4 | 2797 | |
4bf21fa4 | 2798 | if (!dev) { |
c0e0c26e | 2799 | printk(KERN_ERR |
0a85b6f0 | 2800 | "comedi?: usbdux: detach without dev variable...\n"); |
4bf21fa4 BP |
2801 | return -EFAULT; |
2802 | } | |
2803 | ||
2804 | usbduxsub_tmp = dev->private; | |
2805 | if (!usbduxsub_tmp) { | |
c0e0c26e | 2806 | printk(KERN_ERR |
0a85b6f0 | 2807 | "comedi?: usbdux: detach without ptr to usbduxsub[]\n"); |
4bf21fa4 BP |
2808 | return -EFAULT; |
2809 | } | |
2810 | ||
c0e0c26e GKH |
2811 | dev_dbg(&usbduxsub_tmp->interface->dev, "comedi%d: detach usb device\n", |
2812 | dev->minor); | |
2813 | ||
4bf21fa4 | 2814 | down(&usbduxsub_tmp->sem); |
e54fb9c1 GKH |
2815 | /* Don't allow detach to free the private structure */ |
2816 | /* It's one entry of of usbduxsub[] */ | |
4bf21fa4 BP |
2817 | dev->private = NULL; |
2818 | usbduxsub_tmp->attached = 0; | |
2819 | usbduxsub_tmp->comedidev = NULL; | |
c0e0c26e GKH |
2820 | dev_dbg(&usbduxsub_tmp->interface->dev, |
2821 | "comedi%d: detach: successfully removed\n", dev->minor); | |
4bf21fa4 BP |
2822 | up(&usbduxsub_tmp->sem); |
2823 | return 0; | |
2824 | } | |
2825 | ||
2826 | /* main driver struct */ | |
139dfbdf | 2827 | static struct comedi_driver driver_usbdux = { |
0a85b6f0 MT |
2828 | .driver_name = "usbdux", |
2829 | .module = THIS_MODULE, | |
2830 | .attach = usbdux_attach, | |
2831 | .detach = usbdux_detach, | |
4bf21fa4 BP |
2832 | }; |
2833 | ||
8fa07567 | 2834 | /* Table with the USB-devices: just now only testing IDs */ |
a457732b | 2835 | static const struct usb_device_id usbduxsub_table[] = { |
0a85b6f0 MT |
2836 | {USB_DEVICE(0x13d8, 0x0001)}, |
2837 | {USB_DEVICE(0x13d8, 0x0002)}, | |
4bf21fa4 BP |
2838 | {} /* Terminating entry */ |
2839 | }; | |
2840 | ||
2841 | MODULE_DEVICE_TABLE(usb, usbduxsub_table); | |
2842 | ||
8fa07567 | 2843 | /* The usbduxsub-driver */ |
4bf21fa4 | 2844 | static struct usb_driver usbduxsub_driver = { |
0a85b6f0 MT |
2845 | .name = BOARDNAME, |
2846 | .probe = usbduxsub_probe, | |
2847 | .disconnect = usbduxsub_disconnect, | |
2848 | .id_table = usbduxsub_table, | |
4bf21fa4 BP |
2849 | }; |
2850 | ||
e54fb9c1 GKH |
2851 | /* Can't use the nice macro as I have also to initialise the USB */ |
2852 | /* subsystem: */ | |
2853 | /* registering the usb-system _and_ the comedi-driver */ | |
1b9fb14e | 2854 | static int __init init_usbdux(void) |
4bf21fa4 BP |
2855 | { |
2856 | printk(KERN_INFO KBUILD_MODNAME ": " | |
2857 | DRIVER_VERSION ":" DRIVER_DESC "\n"); | |
4bf21fa4 BP |
2858 | usb_register(&usbduxsub_driver); |
2859 | comedi_driver_register(&driver_usbdux); | |
2860 | return 0; | |
2861 | } | |
2862 | ||
e54fb9c1 | 2863 | /* deregistering the comedi driver and the usb-subsystem */ |
1b9fb14e | 2864 | static void __exit exit_usbdux(void) |
4bf21fa4 BP |
2865 | { |
2866 | comedi_driver_unregister(&driver_usbdux); | |
2867 | usb_deregister(&usbduxsub_driver); | |
2868 | } | |
2869 | ||
2870 | module_init(init_usbdux); | |
2871 | module_exit(exit_usbdux); | |
2872 | ||
2873 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
2874 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2875 | MODULE_LICENSE("GPL"); |