Commit | Line | Data |
---|---|---|
4bf21fa4 BP |
1 | /* |
2 | comedi/drivers/usbdux.c | |
3 | Copyright (C) 2003-2007 Bernd Porr, Bernd.Porr@f2s.com | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
4bf21fa4 BP |
14 | */ |
15 | /* | |
16 | Driver: usbdux | |
17 | Description: University of Stirling USB DAQ & INCITE Technology Limited | |
18 | Devices: [ITL] USB-DUX (usbdux.o) | |
19 | Author: Bernd Porr <BerndPorr@f2s.com> | |
6742c0af BP |
20 | Updated: 8 Dec 2008 |
21 | Status: Stable | |
4bf21fa4 BP |
22 | Configuration options: |
23 | You have to upload firmware with the -i option. The | |
24 | firmware is usually installed under /usr/share/usb or | |
25 | /usr/local/share/usb or /lib/firmware. | |
26 | ||
27 | Connection scheme for the counter at the digital port: | |
28 | 0=/CLK0, 1=UP/DOWN0, 2=RESET0, 4=/CLK1, 5=UP/DOWN1, 6=RESET1. | |
29 | The sampling rate of the counter is approximately 500Hz. | |
30 | ||
31 | Please note that under USB2.0 the length of the channel list determines | |
32 | the max sampling rate. If you sample only one channel you get 8kHz | |
33 | sampling rate. If you sample two channels you get 4kHz and so on. | |
34 | */ | |
35 | /* | |
36 | * I must give credit here to Chris Baugher who | |
37 | * wrote the driver for AT-MIO-16d. I used some parts of this | |
38 | * driver. I also must give credits to David Brownell | |
39 | * who supported me with the USB development. | |
40 | * | |
41 | * Bernd Porr | |
42 | * | |
43 | * | |
44 | * Revision history: | |
45 | * 0.94: D/A output should work now with any channel list combinations | |
46 | * 0.95: .owner commented out for kernel vers below 2.4.19 | |
47 | * sanity checks in ai/ao_cmd | |
4274ea02 GKH |
48 | * 0.96: trying to get it working with 2.6, moved all memory alloc to comedi's |
49 | * attach final USB IDs | |
50 | * moved memory allocation completely to the corresponding comedi | |
51 | * functions firmware upload is by fxload and no longer by comedi (due to | |
52 | * enumeration) | |
4bf21fa4 | 53 | * 0.97: USB IDs received, adjusted table |
20ce161d | 54 | * 0.98: SMP, locking, memory alloc: moved all usb memory alloc |
4bf21fa4 BP |
55 | * to the usb subsystem and moved all comedi related memory |
56 | * alloc to comedi. | |
57 | * | kernel | registration | usbdux-usb | usbdux-comedi | comedi | | |
58 | * 0.99: USB 2.0: changed protocol to isochronous transfer | |
59 | * IRQ transfer is too buggy and too risky in 2.0 | |
4274ea02 GKH |
60 | * for the high speed ISO transfer is now a working version |
61 | * available | |
4bf21fa4 BP |
62 | * 0.99b: Increased the iso transfer buffer for high sp.to 10 buffers. Some VIA |
63 | * chipsets miss out IRQs. Deeper buffering is needed. | |
4274ea02 GKH |
64 | * 1.00: full USB 2.0 support for the A/D converter. Now: max 8kHz sampling |
65 | * rate. | |
4bf21fa4 BP |
66 | * Firmware vers 1.00 is needed for this. |
67 | * Two 16 bit up/down/reset counter with a sampling rate of 1kHz | |
68 | * And loads of cleaning up, in particular streamlining the | |
69 | * bulk transfers. | |
70 | * 1.1: moved EP4 transfers to EP1 to make space for a PWM output on EP4 | |
02582e9b | 71 | * 1.2: added PWM support via EP4 |
4bf21fa4 BP |
72 | * 2.0: PWM seems to be stable and is not interfering with the other functions |
73 | * 2.1: changed PWM API | |
6742c0af | 74 | * 2.2: added firmware kernel request to fix an udev problem |
ea25371a | 75 | * 2.3: corrected a bug in bulk timeouts which were far too short |
d4c3a565 BP |
76 | * 2.4: fixed a bug which causes the driver to hang when it ran out of data. |
77 | * Thanks to Jan-Matthias Braun and Ian to spot the bug and fix it. | |
4bf21fa4 BP |
78 | * |
79 | */ | |
80 | ||
e54fb9c1 GKH |
81 | /* generates loads of debug info */ |
82 | /* #define NOISY_DUX_DEBUGBUG */ | |
4bf21fa4 BP |
83 | |
84 | #include <linux/kernel.h> | |
85 | #include <linux/module.h> | |
86 | #include <linux/init.h> | |
87 | #include <linux/slab.h> | |
88 | #include <linux/input.h> | |
89 | #include <linux/usb.h> | |
4bf21fa4 BP |
90 | #include <linux/fcntl.h> |
91 | #include <linux/compiler.h> | |
6742c0af | 92 | #include <linux/firmware.h> |
4bf21fa4 BP |
93 | |
94 | #include "../comedidev.h" | |
4bf21fa4 | 95 | |
27020ffe HS |
96 | #include "comedi_fc.h" |
97 | ||
ea25371a BP |
98 | /* timeout for the USB-transfer in ms*/ |
99 | #define BULK_TIMEOUT 1000 | |
4bf21fa4 | 100 | |
e54fb9c1 | 101 | /* constants for "firmware" upload and download */ |
1e1ccc3a | 102 | #define FIRMWARE "usbdux_firmware.bin" |
4bf21fa4 BP |
103 | #define USBDUXSUB_FIRMWARE 0xA0 |
104 | #define VENDOR_DIR_IN 0xC0 | |
105 | #define VENDOR_DIR_OUT 0x40 | |
106 | ||
f69b0d64 | 107 | /* internal addresses of the 8051 processor */ |
4bf21fa4 BP |
108 | #define USBDUXSUB_CPUCS 0xE600 |
109 | ||
e54fb9c1 GKH |
110 | /* |
111 | * the minor device number, major is 180 only for debugging purposes and to | |
112 | * upload special firmware (programming the eeprom etc) which is not compatible | |
113 | * with the comedi framwork | |
114 | */ | |
4bf21fa4 BP |
115 | #define USBDUXSUB_MINOR 32 |
116 | ||
e54fb9c1 | 117 | /* max lenghth of the transfer-buffer for software upload */ |
4bf21fa4 BP |
118 | #define TB_LEN 0x2000 |
119 | ||
e54fb9c1 | 120 | /* Input endpoint number: ISO/IRQ */ |
4bf21fa4 BP |
121 | #define ISOINEP 6 |
122 | ||
e54fb9c1 | 123 | /* Output endpoint number: ISO/IRQ */ |
4bf21fa4 BP |
124 | #define ISOOUTEP 2 |
125 | ||
e54fb9c1 | 126 | /* This EP sends DUX commands to USBDUX */ |
4bf21fa4 BP |
127 | #define COMMAND_OUT_EP 1 |
128 | ||
e54fb9c1 | 129 | /* This EP receives the DUX commands from USBDUX */ |
4bf21fa4 BP |
130 | #define COMMAND_IN_EP 8 |
131 | ||
e54fb9c1 | 132 | /* Output endpoint for PWM */ |
4bf21fa4 BP |
133 | #define PWM_EP 4 |
134 | ||
e54fb9c1 | 135 | /* 300Hz max frequ under PWM */ |
4bf21fa4 BP |
136 | #define MIN_PWM_PERIOD ((long)(1E9/300)) |
137 | ||
e54fb9c1 | 138 | /* Default PWM frequency */ |
4bf21fa4 BP |
139 | #define PWM_DEFAULT_PERIOD ((long)(1E9/100)) |
140 | ||
e54fb9c1 | 141 | /* Number of channels */ |
4bf21fa4 BP |
142 | #define NUMCHANNELS 8 |
143 | ||
e54fb9c1 | 144 | /* Size of one A/D value */ |
4bf21fa4 BP |
145 | #define SIZEADIN ((sizeof(int16_t))) |
146 | ||
4274ea02 GKH |
147 | /* |
148 | * Size of the input-buffer IN BYTES | |
149 | * Always multiple of 8 for 8 microframes which is needed in the highspeed mode | |
150 | */ | |
4bf21fa4 BP |
151 | #define SIZEINBUF ((8*SIZEADIN)) |
152 | ||
e54fb9c1 | 153 | /* 16 bytes. */ |
4bf21fa4 BP |
154 | #define SIZEINSNBUF 16 |
155 | ||
e54fb9c1 | 156 | /* Number of DA channels */ |
4bf21fa4 BP |
157 | #define NUMOUTCHANNELS 8 |
158 | ||
e54fb9c1 | 159 | /* size of one value for the D/A converter: channel and value */ |
4bf21fa4 BP |
160 | #define SIZEDAOUT ((sizeof(int8_t)+sizeof(int16_t))) |
161 | ||
e54fb9c1 GKH |
162 | /* |
163 | * Size of the output-buffer in bytes | |
164 | * Actually only the first 4 triplets are used but for the | |
165 | * high speed mode we need to pad it to 8 (microframes). | |
166 | */ | |
4bf21fa4 BP |
167 | #define SIZEOUTBUF ((8*SIZEDAOUT)) |
168 | ||
e54fb9c1 GKH |
169 | /* |
170 | * Size of the buffer for the dux commands: just now max size is determined | |
171 | * by the analogue out + command byte + panic bytes... | |
172 | */ | |
4bf21fa4 BP |
173 | #define SIZEOFDUXBUFFER ((8*SIZEDAOUT+2)) |
174 | ||
e54fb9c1 | 175 | /* Number of in-URBs which receive the data: min=2 */ |
4bf21fa4 BP |
176 | #define NUMOFINBUFFERSFULL 5 |
177 | ||
e54fb9c1 | 178 | /* Number of out-URBs which send the data: min=2 */ |
4bf21fa4 BP |
179 | #define NUMOFOUTBUFFERSFULL 5 |
180 | ||
e54fb9c1 GKH |
181 | /* Number of in-URBs which receive the data: min=5 */ |
182 | /* must have more buffers due to buggy USB ctr */ | |
183 | #define NUMOFINBUFFERSHIGH 10 | |
4bf21fa4 | 184 | |
e54fb9c1 GKH |
185 | /* Number of out-URBs which send the data: min=5 */ |
186 | /* must have more buffers due to buggy USB ctr */ | |
187 | #define NUMOFOUTBUFFERSHIGH 10 | |
4bf21fa4 | 188 | |
e54fb9c1 | 189 | /* Total number of usbdux devices */ |
4bf21fa4 BP |
190 | #define NUMUSBDUX 16 |
191 | ||
e54fb9c1 | 192 | /* Analogue in subdevice */ |
4bf21fa4 BP |
193 | #define SUBDEV_AD 0 |
194 | ||
e54fb9c1 | 195 | /* Analogue out subdevice */ |
4bf21fa4 BP |
196 | #define SUBDEV_DA 1 |
197 | ||
e54fb9c1 | 198 | /* Digital I/O */ |
4bf21fa4 BP |
199 | #define SUBDEV_DIO 2 |
200 | ||
e54fb9c1 | 201 | /* counter */ |
4bf21fa4 BP |
202 | #define SUBDEV_COUNTER 3 |
203 | ||
e54fb9c1 | 204 | /* timer aka pwm output */ |
4bf21fa4 BP |
205 | #define SUBDEV_PWM 4 |
206 | ||
e54fb9c1 | 207 | /* number of retries to get the right dux command */ |
4bf21fa4 BP |
208 | #define RETRIES 10 |
209 | ||
e54fb9c1 GKH |
210 | /**************************************************/ |
211 | /* comedi constants */ | |
9ced1de6 | 212 | static const struct comedi_lrange range_usbdux_ai_range = { 4, { |
0a85b6f0 MT |
213 | BIP_RANGE |
214 | (4.096), | |
215 | BIP_RANGE(4.096 | |
216 | / 2), | |
217 | UNI_RANGE | |
218 | (4.096), | |
219 | UNI_RANGE(4.096 | |
220 | / 2) | |
221 | } | |
4bf21fa4 BP |
222 | }; |
223 | ||
9ced1de6 | 224 | static const struct comedi_lrange range_usbdux_ao_range = { 2, { |
0a85b6f0 MT |
225 | BIP_RANGE |
226 | (4.096), | |
227 | UNI_RANGE | |
228 | (4.096), | |
229 | } | |
4bf21fa4 BP |
230 | }; |
231 | ||
232 | /* | |
233 | * private structure of one subdevice | |
234 | */ | |
235 | ||
e54fb9c1 GKH |
236 | /* |
237 | * This is the structure which holds all the data of | |
238 | * this driver one sub device just now: A/D | |
239 | */ | |
cc92fca7 | 240 | struct usbduxsub { |
e54fb9c1 | 241 | /* attached? */ |
4bf21fa4 | 242 | int attached; |
e54fb9c1 | 243 | /* is it associated with a subdevice? */ |
4bf21fa4 | 244 | int probed; |
e54fb9c1 | 245 | /* pointer to the usb-device */ |
4bf21fa4 | 246 | struct usb_device *usbdev; |
e54fb9c1 | 247 | /* actual number of in-buffers */ |
b74e5f56 | 248 | int num_in_buffers; |
e54fb9c1 | 249 | /* actual number of out-buffers */ |
b74e5f56 | 250 | int num_out_buffers; |
e54fb9c1 | 251 | /* ISO-transfer handling: buffers */ |
b74e5f56 JG |
252 | struct urb **urb_in; |
253 | struct urb **urb_out; | |
e54fb9c1 | 254 | /* pwm-transfer handling */ |
b74e5f56 | 255 | struct urb *urb_pwm; |
e54fb9c1 | 256 | /* PWM period */ |
b74e5f56 | 257 | unsigned int pwm_period; |
e54fb9c1 | 258 | /* PWM internal delay for the GPIF in the FX2 */ |
b74e5f56 | 259 | int8_t pwn_delay; |
e54fb9c1 | 260 | /* size of the PWM buffer which holds the bit pattern */ |
b74e5f56 | 261 | int size_pwm_buf; |
e54fb9c1 | 262 | /* input buffer for the ISO-transfer */ |
b74e5f56 | 263 | int16_t *in_buffer; |
e54fb9c1 | 264 | /* input buffer for single insn */ |
b74e5f56 | 265 | int16_t *insn_buffer; |
e54fb9c1 | 266 | /* output buffer for single DA outputs */ |
b74e5f56 | 267 | int16_t *out_buffer; |
e54fb9c1 | 268 | /* interface number */ |
4bf21fa4 | 269 | int ifnum; |
e54fb9c1 | 270 | /* interface structure in 2.6 */ |
4bf21fa4 | 271 | struct usb_interface *interface; |
e54fb9c1 | 272 | /* comedi device for the interrupt context */ |
71b5f4f1 | 273 | struct comedi_device *comedidev; |
e54fb9c1 | 274 | /* is it USB_SPEED_HIGH or not? */ |
4bf21fa4 | 275 | short int high_speed; |
e54fb9c1 | 276 | /* asynchronous command is running */ |
4bf21fa4 BP |
277 | short int ai_cmd_running; |
278 | short int ao_cmd_running; | |
e54fb9c1 | 279 | /* pwm is running */ |
4bf21fa4 | 280 | short int pwm_cmd_running; |
25985edc | 281 | /* continous acquisition */ |
4bf21fa4 BP |
282 | short int ai_continous; |
283 | short int ao_continous; | |
9d220c6b | 284 | /* number of samples to acquire */ |
4bf21fa4 BP |
285 | int ai_sample_count; |
286 | int ao_sample_count; | |
e54fb9c1 | 287 | /* time between samples in units of the timer */ |
4bf21fa4 BP |
288 | unsigned int ai_timer; |
289 | unsigned int ao_timer; | |
e54fb9c1 | 290 | /* counter between aquisitions */ |
4bf21fa4 BP |
291 | unsigned int ai_counter; |
292 | unsigned int ao_counter; | |
e54fb9c1 | 293 | /* interval in frames/uframes */ |
4bf21fa4 | 294 | unsigned int ai_interval; |
e54fb9c1 | 295 | /* D/A commands */ |
4bf21fa4 | 296 | int8_t *dac_commands; |
e54fb9c1 | 297 | /* commands */ |
4bf21fa4 BP |
298 | int8_t *dux_commands; |
299 | struct semaphore sem; | |
cc92fca7 | 300 | }; |
4bf21fa4 | 301 | |
e54fb9c1 GKH |
302 | /* |
303 | * The pointer to the private usb-data of the driver is also the private data | |
304 | * for the comedi-device. This has to be global as the usb subsystem needs | |
305 | * global variables. The other reason is that this structure must be there | |
306 | * _before_ any comedi command is issued. The usb subsystem must be initialised | |
307 | * before comedi can access it. | |
308 | */ | |
cc92fca7 | 309 | static struct usbduxsub usbduxsub[NUMUSBDUX]; |
4bf21fa4 | 310 | |
45f4d024 | 311 | static DEFINE_SEMAPHORE(start_stop_sem); |
4bf21fa4 | 312 | |
e54fb9c1 GKH |
313 | /* |
314 | * Stops the data acquision | |
315 | * It should be safe to call this function from any context | |
316 | */ | |
b74e5f56 | 317 | static int usbduxsub_unlink_inurbs(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 BP |
318 | { |
319 | int i = 0; | |
4bf21fa4 BP |
320 | int err = 0; |
321 | ||
b74e5f56 JG |
322 | if (usbduxsub_tmp && usbduxsub_tmp->urb_in) { |
323 | for (i = 0; i < usbduxsub_tmp->num_in_buffers; i++) { | |
324 | if (usbduxsub_tmp->urb_in[i]) { | |
e54fb9c1 GKH |
325 | /* We wait here until all transfers have been |
326 | * cancelled. */ | |
b74e5f56 | 327 | usb_kill_urb(usbduxsub_tmp->urb_in[i]); |
4bf21fa4 | 328 | } |
c0e0c26e GKH |
329 | dev_dbg(&usbduxsub_tmp->interface->dev, |
330 | "comedi: usbdux: unlinked InURB %d, err=%d\n", | |
4bf21fa4 | 331 | i, err); |
4bf21fa4 BP |
332 | } |
333 | } | |
334 | return err; | |
335 | } | |
336 | ||
8fa07567 GKH |
337 | /* |
338 | * This will stop a running acquisition operation | |
339 | * Is called from within this driver from both the | |
340 | * interrupt context and from comedi | |
341 | */ | |
cc92fca7 | 342 | static int usbdux_ai_stop(struct usbduxsub *this_usbduxsub, int do_unlink) |
4bf21fa4 BP |
343 | { |
344 | int ret = 0; | |
345 | ||
346 | if (!this_usbduxsub) { | |
c60e55f3 | 347 | pr_err("comedi?: usbdux_ai_stop: this_usbduxsub=NULL!\n"); |
4bf21fa4 BP |
348 | return -EFAULT; |
349 | } | |
c0e0c26e | 350 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: usbdux_ai_stop\n"); |
4bf21fa4 BP |
351 | |
352 | if (do_unlink) { | |
e54fb9c1 | 353 | /* stop aquistion */ |
b74e5f56 | 354 | ret = usbduxsub_unlink_inurbs(this_usbduxsub); |
4bf21fa4 BP |
355 | } |
356 | ||
357 | this_usbduxsub->ai_cmd_running = 0; | |
358 | ||
359 | return ret; | |
360 | } | |
361 | ||
e54fb9c1 GKH |
362 | /* |
363 | * This will cancel a running acquisition operation. | |
364 | * This is called by comedi but never from inside the driver. | |
365 | */ | |
0a85b6f0 MT |
366 | static int usbdux_ai_cancel(struct comedi_device *dev, |
367 | struct comedi_subdevice *s) | |
4bf21fa4 | 368 | { |
cc92fca7 | 369 | struct usbduxsub *this_usbduxsub; |
4bf21fa4 BP |
370 | int res = 0; |
371 | ||
e54fb9c1 | 372 | /* force unlink of all urbs */ |
4bf21fa4 | 373 | this_usbduxsub = dev->private; |
c0e0c26e | 374 | if (!this_usbduxsub) |
4bf21fa4 | 375 | return -EFAULT; |
c0e0c26e GKH |
376 | |
377 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: usbdux_ai_cancel\n"); | |
378 | ||
e54fb9c1 | 379 | /* prevent other CPUs from submitting new commands just now */ |
4bf21fa4 BP |
380 | down(&this_usbduxsub->sem); |
381 | if (!(this_usbduxsub->probed)) { | |
382 | up(&this_usbduxsub->sem); | |
383 | return -ENODEV; | |
384 | } | |
e54fb9c1 | 385 | /* unlink only if the urb really has been submitted */ |
4bf21fa4 BP |
386 | res = usbdux_ai_stop(this_usbduxsub, this_usbduxsub->ai_cmd_running); |
387 | up(&this_usbduxsub->sem); | |
388 | return res; | |
389 | } | |
390 | ||
e54fb9c1 | 391 | /* analogue IN - interrupt service routine */ |
b74e5f56 | 392 | static void usbduxsub_ai_isoc_irq(struct urb *urb) |
4bf21fa4 BP |
393 | { |
394 | int i, err, n; | |
cc92fca7 | 395 | struct usbduxsub *this_usbduxsub; |
71b5f4f1 | 396 | struct comedi_device *this_comedidev; |
34c43922 | 397 | struct comedi_subdevice *s; |
4bf21fa4 | 398 | |
e54fb9c1 | 399 | /* the context variable points to the subdevice */ |
4bf21fa4 | 400 | this_comedidev = urb->context; |
cc92fca7 | 401 | /* the private structure of the subdevice is struct usbduxsub */ |
4bf21fa4 | 402 | this_usbduxsub = this_comedidev->private; |
e54fb9c1 | 403 | /* subdevice which is the AD converter */ |
4760904f | 404 | s = &this_comedidev->subdevices[SUBDEV_AD]; |
4bf21fa4 | 405 | |
e54fb9c1 | 406 | /* first we test if something unusual has just happened */ |
4bf21fa4 BP |
407 | switch (urb->status) { |
408 | case 0: | |
e54fb9c1 | 409 | /* copy the result in the transfer buffer */ |
b74e5f56 | 410 | memcpy(this_usbduxsub->in_buffer, |
0a85b6f0 | 411 | urb->transfer_buffer, SIZEINBUF); |
4bf21fa4 BP |
412 | break; |
413 | case -EILSEQ: | |
e54fb9c1 GKH |
414 | /* error in the ISOchronous data */ |
415 | /* we don't copy the data into the transfer buffer */ | |
416 | /* and recycle the last data byte */ | |
c0e0c26e GKH |
417 | dev_dbg(&urb->dev->dev, |
418 | "comedi%d: usbdux: CRC error in ISO IN stream.\n", | |
4bf21fa4 | 419 | this_usbduxsub->comedidev->minor); |
4bf21fa4 BP |
420 | |
421 | break; | |
422 | ||
4bf21fa4 BP |
423 | case -ECONNRESET: |
424 | case -ENOENT: | |
425 | case -ESHUTDOWN: | |
426 | case -ECONNABORTED: | |
e54fb9c1 | 427 | /* happens after an unlink command */ |
4bf21fa4 | 428 | if (this_usbduxsub->ai_cmd_running) { |
e54fb9c1 GKH |
429 | /* we are still running a command */ |
430 | /* tell this comedi */ | |
4bf21fa4 BP |
431 | s->async->events |= COMEDI_CB_EOA; |
432 | s->async->events |= COMEDI_CB_ERROR; | |
433 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 434 | /* stop the transfer w/o unlink */ |
4bf21fa4 BP |
435 | usbdux_ai_stop(this_usbduxsub, 0); |
436 | } | |
437 | return; | |
438 | ||
4bf21fa4 | 439 | default: |
e54fb9c1 GKH |
440 | /* a real error on the bus */ |
441 | /* pass error to comedi if we are really running a command */ | |
4bf21fa4 | 442 | if (this_usbduxsub->ai_cmd_running) { |
c0e0c26e GKH |
443 | dev_err(&urb->dev->dev, |
444 | "Non-zero urb status received in ai intr " | |
445 | "context: %d\n", urb->status); | |
4bf21fa4 BP |
446 | s->async->events |= COMEDI_CB_EOA; |
447 | s->async->events |= COMEDI_CB_ERROR; | |
448 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 449 | /* don't do an unlink here */ |
4bf21fa4 BP |
450 | usbdux_ai_stop(this_usbduxsub, 0); |
451 | } | |
452 | return; | |
453 | } | |
454 | ||
4274ea02 GKH |
455 | /* |
456 | * at this point we are reasonably sure that nothing dodgy has happened | |
457 | * are we running a command? | |
458 | */ | |
4bf21fa4 | 459 | if (unlikely((!(this_usbduxsub->ai_cmd_running)))) { |
e54fb9c1 GKH |
460 | /* |
461 | * not running a command, do not continue execution if no | |
462 | * asynchronous command is running in particular not resubmit | |
463 | */ | |
4bf21fa4 BP |
464 | return; |
465 | } | |
466 | ||
467 | urb->dev = this_usbduxsub->usbdev; | |
468 | ||
8fa07567 | 469 | /* resubmit the urb */ |
4aa3a823 | 470 | err = usb_submit_urb(urb, GFP_ATOMIC); |
4bf21fa4 | 471 | if (unlikely(err < 0)) { |
c0e0c26e GKH |
472 | dev_err(&urb->dev->dev, |
473 | "comedi_: urb resubmit failed in int-context! err=%d\n", | |
474 | err); | |
8fa07567 | 475 | if (err == -EL2NSYNC) |
c0e0c26e GKH |
476 | dev_err(&urb->dev->dev, |
477 | "buggy USB host controller or bug in IRQ " | |
478 | "handler!\n"); | |
4bf21fa4 BP |
479 | s->async->events |= COMEDI_CB_EOA; |
480 | s->async->events |= COMEDI_CB_ERROR; | |
481 | comedi_event(this_usbduxsub->comedidev, s); | |
8fa07567 | 482 | /* don't do an unlink here */ |
4bf21fa4 BP |
483 | usbdux_ai_stop(this_usbduxsub, 0); |
484 | return; | |
485 | } | |
486 | ||
487 | this_usbduxsub->ai_counter--; | |
8fa07567 | 488 | if (likely(this_usbduxsub->ai_counter > 0)) |
4bf21fa4 | 489 | return; |
8fa07567 | 490 | |
e54fb9c1 | 491 | /* timer zero, transfer measurements to comedi */ |
4bf21fa4 BP |
492 | this_usbduxsub->ai_counter = this_usbduxsub->ai_timer; |
493 | ||
e54fb9c1 | 494 | /* test, if we transmit only a fixed number of samples */ |
4bf21fa4 | 495 | if (!(this_usbduxsub->ai_continous)) { |
25985edc | 496 | /* not continuous, fixed number of samples */ |
4bf21fa4 | 497 | this_usbduxsub->ai_sample_count--; |
e54fb9c1 | 498 | /* all samples received? */ |
4bf21fa4 | 499 | if (this_usbduxsub->ai_sample_count < 0) { |
e54fb9c1 | 500 | /* prevent a resubmit next time */ |
4bf21fa4 | 501 | usbdux_ai_stop(this_usbduxsub, 0); |
e54fb9c1 | 502 | /* say comedi that the acquistion is over */ |
4bf21fa4 BP |
503 | s->async->events |= COMEDI_CB_EOA; |
504 | comedi_event(this_usbduxsub->comedidev, s); | |
505 | return; | |
506 | } | |
507 | } | |
e54fb9c1 | 508 | /* get the data from the USB bus and hand it over to comedi */ |
4bf21fa4 BP |
509 | n = s->async->cmd.chanlist_len; |
510 | for (i = 0; i < n; i++) { | |
e54fb9c1 | 511 | /* transfer data */ |
4bf21fa4 | 512 | if (CR_RANGE(s->async->cmd.chanlist[i]) <= 1) { |
efe8d60a | 513 | err = comedi_buf_put |
0a85b6f0 | 514 | (s->async, |
b74e5f56 | 515 | le16_to_cpu(this_usbduxsub->in_buffer[i]) ^ 0x800); |
4bf21fa4 | 516 | } else { |
efe8d60a | 517 | err = comedi_buf_put |
0a85b6f0 | 518 | (s->async, |
b74e5f56 | 519 | le16_to_cpu(this_usbduxsub->in_buffer[i])); |
efe8d60a BP |
520 | } |
521 | if (unlikely(err == 0)) { | |
522 | /* buffer overflow */ | |
523 | usbdux_ai_stop(this_usbduxsub, 0); | |
524 | return; | |
4bf21fa4 BP |
525 | } |
526 | } | |
e54fb9c1 | 527 | /* tell comedi that data is there */ |
d4c3a565 | 528 | s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS; |
4bf21fa4 BP |
529 | comedi_event(this_usbduxsub->comedidev, s); |
530 | } | |
531 | ||
b74e5f56 | 532 | static int usbduxsub_unlink_outurbs(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 BP |
533 | { |
534 | int i = 0; | |
4bf21fa4 BP |
535 | int err = 0; |
536 | ||
b74e5f56 JG |
537 | if (usbduxsub_tmp && usbduxsub_tmp->urb_out) { |
538 | for (i = 0; i < usbduxsub_tmp->num_out_buffers; i++) { | |
539 | if (usbduxsub_tmp->urb_out[i]) | |
540 | usb_kill_urb(usbduxsub_tmp->urb_out[i]); | |
8fa07567 | 541 | |
c0e0c26e GKH |
542 | dev_dbg(&usbduxsub_tmp->interface->dev, |
543 | "comedi: usbdux: unlinked OutURB %d: res=%d\n", | |
4bf21fa4 | 544 | i, err); |
4bf21fa4 BP |
545 | } |
546 | } | |
547 | return err; | |
548 | } | |
549 | ||
550 | /* This will cancel a running acquisition operation | |
551 | * in any context. | |
552 | */ | |
cc92fca7 | 553 | static int usbdux_ao_stop(struct usbduxsub *this_usbduxsub, int do_unlink) |
4bf21fa4 BP |
554 | { |
555 | int ret = 0; | |
556 | ||
c0e0c26e | 557 | if (!this_usbduxsub) |
4bf21fa4 | 558 | return -EFAULT; |
c0e0c26e GKH |
559 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: usbdux_ao_cancel\n"); |
560 | ||
8fa07567 | 561 | if (do_unlink) |
b74e5f56 | 562 | ret = usbduxsub_unlink_outurbs(this_usbduxsub); |
4bf21fa4 BP |
563 | |
564 | this_usbduxsub->ao_cmd_running = 0; | |
565 | ||
566 | return ret; | |
567 | } | |
568 | ||
8fa07567 | 569 | /* force unlink, is called by comedi */ |
0a85b6f0 MT |
570 | static int usbdux_ao_cancel(struct comedi_device *dev, |
571 | struct comedi_subdevice *s) | |
4bf21fa4 | 572 | { |
cc92fca7 | 573 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
574 | int res = 0; |
575 | ||
c0e0c26e | 576 | if (!this_usbduxsub) |
4bf21fa4 | 577 | return -EFAULT; |
c0e0c26e | 578 | |
e54fb9c1 | 579 | /* prevent other CPUs from submitting a command just now */ |
4bf21fa4 BP |
580 | down(&this_usbduxsub->sem); |
581 | if (!(this_usbduxsub->probed)) { | |
582 | up(&this_usbduxsub->sem); | |
583 | return -ENODEV; | |
584 | } | |
e54fb9c1 | 585 | /* unlink only if it is really running */ |
4bf21fa4 BP |
586 | res = usbdux_ao_stop(this_usbduxsub, this_usbduxsub->ao_cmd_running); |
587 | up(&this_usbduxsub->sem); | |
588 | return res; | |
589 | } | |
590 | ||
b74e5f56 | 591 | static void usbduxsub_ao_isoc_irq(struct urb *urb) |
4bf21fa4 | 592 | { |
4bf21fa4 BP |
593 | int i, ret; |
594 | int8_t *datap; | |
cc92fca7 | 595 | struct usbduxsub *this_usbduxsub; |
71b5f4f1 | 596 | struct comedi_device *this_comedidev; |
34c43922 | 597 | struct comedi_subdevice *s; |
4bf21fa4 | 598 | |
e54fb9c1 | 599 | /* the context variable points to the subdevice */ |
4bf21fa4 | 600 | this_comedidev = urb->context; |
cc92fca7 | 601 | /* the private structure of the subdevice is struct usbduxsub */ |
4bf21fa4 | 602 | this_usbduxsub = this_comedidev->private; |
4bf21fa4 | 603 | |
4760904f | 604 | s = &this_comedidev->subdevices[SUBDEV_DA]; |
4bf21fa4 BP |
605 | |
606 | switch (urb->status) { | |
607 | case 0: | |
608 | /* success */ | |
609 | break; | |
610 | ||
4bf21fa4 BP |
611 | case -ECONNRESET: |
612 | case -ENOENT: | |
613 | case -ESHUTDOWN: | |
614 | case -ECONNABORTED: | |
e54fb9c1 GKH |
615 | /* after an unlink command, unplug, ... etc */ |
616 | /* no unlink needed here. Already shutting down. */ | |
4bf21fa4 BP |
617 | if (this_usbduxsub->ao_cmd_running) { |
618 | s->async->events |= COMEDI_CB_EOA; | |
619 | comedi_event(this_usbduxsub->comedidev, s); | |
620 | usbdux_ao_stop(this_usbduxsub, 0); | |
621 | } | |
622 | return; | |
623 | ||
4bf21fa4 | 624 | default: |
e54fb9c1 | 625 | /* a real error */ |
4bf21fa4 | 626 | if (this_usbduxsub->ao_cmd_running) { |
c0e0c26e GKH |
627 | dev_err(&urb->dev->dev, |
628 | "comedi_: Non-zero urb status received in ao " | |
629 | "intr context: %d\n", urb->status); | |
4bf21fa4 BP |
630 | s->async->events |= COMEDI_CB_ERROR; |
631 | s->async->events |= COMEDI_CB_EOA; | |
632 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 633 | /* we do an unlink if we are in the high speed mode */ |
4bf21fa4 BP |
634 | usbdux_ao_stop(this_usbduxsub, 0); |
635 | } | |
636 | return; | |
637 | } | |
638 | ||
e54fb9c1 | 639 | /* are we actually running? */ |
8fa07567 | 640 | if (!(this_usbduxsub->ao_cmd_running)) |
4bf21fa4 | 641 | return; |
8fa07567 | 642 | |
e54fb9c1 | 643 | /* normal operation: executing a command in this subdevice */ |
4bf21fa4 | 644 | this_usbduxsub->ao_counter--; |
2503a265 | 645 | if ((int)this_usbduxsub->ao_counter <= 0) { |
e54fb9c1 | 646 | /* timer zero */ |
4bf21fa4 BP |
647 | this_usbduxsub->ao_counter = this_usbduxsub->ao_timer; |
648 | ||
25985edc | 649 | /* handle non continous acquisition */ |
4bf21fa4 | 650 | if (!(this_usbduxsub->ao_continous)) { |
e54fb9c1 | 651 | /* fixed number of samples */ |
4bf21fa4 BP |
652 | this_usbduxsub->ao_sample_count--; |
653 | if (this_usbduxsub->ao_sample_count < 0) { | |
e54fb9c1 | 654 | /* all samples transmitted */ |
4bf21fa4 BP |
655 | usbdux_ao_stop(this_usbduxsub, 0); |
656 | s->async->events |= COMEDI_CB_EOA; | |
657 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 658 | /* no resubmit of the urb */ |
4bf21fa4 BP |
659 | return; |
660 | } | |
661 | } | |
e54fb9c1 | 662 | /* transmit data to the USB bus */ |
4bf21fa4 | 663 | ((uint8_t *) (urb->transfer_buffer))[0] = |
0a85b6f0 | 664 | s->async->cmd.chanlist_len; |
4bf21fa4 | 665 | for (i = 0; i < s->async->cmd.chanlist_len; i++) { |
790c5541 | 666 | short temp; |
8fa07567 | 667 | if (i >= NUMOUTCHANNELS) |
4bf21fa4 | 668 | break; |
8fa07567 | 669 | |
e54fb9c1 | 670 | /* pointer to the DA */ |
4274ea02 | 671 | datap = |
0a85b6f0 | 672 | (&(((int8_t *) urb->transfer_buffer)[i * 3 + 1])); |
e54fb9c1 | 673 | /* get the data from comedi */ |
4bf21fa4 BP |
674 | ret = comedi_buf_get(s->async, &temp); |
675 | datap[0] = temp; | |
676 | datap[1] = temp >> 8; | |
677 | datap[2] = this_usbduxsub->dac_commands[i]; | |
e54fb9c1 GKH |
678 | /* printk("data[0]=%x, data[1]=%x, data[2]=%x\n", */ |
679 | /* datap[0],datap[1],datap[2]); */ | |
4bf21fa4 | 680 | if (ret < 0) { |
c0e0c26e GKH |
681 | dev_err(&urb->dev->dev, |
682 | "comedi: buffer underflow\n"); | |
4bf21fa4 BP |
683 | s->async->events |= COMEDI_CB_EOA; |
684 | s->async->events |= COMEDI_CB_OVERFLOW; | |
685 | } | |
e54fb9c1 | 686 | /* transmit data to comedi */ |
4bf21fa4 BP |
687 | s->async->events |= COMEDI_CB_BLOCK; |
688 | comedi_event(this_usbduxsub->comedidev, s); | |
689 | } | |
690 | } | |
691 | urb->transfer_buffer_length = SIZEOUTBUF; | |
692 | urb->dev = this_usbduxsub->usbdev; | |
693 | urb->status = 0; | |
694 | if (this_usbduxsub->ao_cmd_running) { | |
695 | if (this_usbduxsub->high_speed) { | |
e54fb9c1 | 696 | /* uframes */ |
4bf21fa4 BP |
697 | urb->interval = 8; |
698 | } else { | |
e54fb9c1 | 699 | /* frames */ |
4bf21fa4 BP |
700 | urb->interval = 1; |
701 | } | |
702 | urb->number_of_packets = 1; | |
703 | urb->iso_frame_desc[0].offset = 0; | |
704 | urb->iso_frame_desc[0].length = SIZEOUTBUF; | |
705 | urb->iso_frame_desc[0].status = 0; | |
4aa3a823 | 706 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
4274ea02 | 707 | if (ret < 0) { |
c0e0c26e GKH |
708 | dev_err(&urb->dev->dev, |
709 | "comedi_: ao urb resubm failed in int-cont. " | |
710 | "ret=%d", ret); | |
8fa07567 | 711 | if (ret == EL2NSYNC) |
c0e0c26e GKH |
712 | dev_err(&urb->dev->dev, |
713 | "buggy USB host controller or bug in " | |
714 | "IRQ handling!\n"); | |
8fa07567 | 715 | |
4bf21fa4 BP |
716 | s->async->events |= COMEDI_CB_EOA; |
717 | s->async->events |= COMEDI_CB_ERROR; | |
718 | comedi_event(this_usbduxsub->comedidev, s); | |
e54fb9c1 | 719 | /* don't do an unlink here */ |
4bf21fa4 BP |
720 | usbdux_ao_stop(this_usbduxsub, 0); |
721 | } | |
722 | } | |
723 | } | |
724 | ||
cc92fca7 | 725 | static int usbduxsub_start(struct usbduxsub *usbduxsub) |
4bf21fa4 BP |
726 | { |
727 | int errcode = 0; | |
d49c3d61 KAM |
728 | uint8_t *local_transfer_buffer; |
729 | ||
730 | local_transfer_buffer = kmalloc(1, GFP_KERNEL); | |
731 | if (!local_transfer_buffer) | |
732 | return -ENOMEM; | |
4bf21fa4 | 733 | |
6742c0af | 734 | /* 7f92 to zero */ |
d49c3d61 | 735 | *local_transfer_buffer = 0; |
6742c0af BP |
736 | errcode = usb_control_msg(usbduxsub->usbdev, |
737 | /* create a pipe for a control transfer */ | |
738 | usb_sndctrlpipe(usbduxsub->usbdev, 0), | |
739 | /* bRequest, "Firmware" */ | |
740 | USBDUXSUB_FIRMWARE, | |
741 | /* bmRequestType */ | |
742 | VENDOR_DIR_OUT, | |
743 | /* Value */ | |
744 | USBDUXSUB_CPUCS, | |
745 | /* Index */ | |
746 | 0x0000, | |
747 | /* address of the transfer buffer */ | |
748 | local_transfer_buffer, | |
749 | /* Length */ | |
750 | 1, | |
751 | /* Timeout */ | |
ea25371a | 752 | BULK_TIMEOUT); |
d49c3d61 | 753 | if (errcode < 0) |
6742c0af BP |
754 | dev_err(&usbduxsub->interface->dev, |
755 | "comedi_: control msg failed (start)\n"); | |
d49c3d61 KAM |
756 | |
757 | kfree(local_transfer_buffer); | |
758 | return errcode; | |
4bf21fa4 BP |
759 | } |
760 | ||
cc92fca7 | 761 | static int usbduxsub_stop(struct usbduxsub *usbduxsub) |
4bf21fa4 BP |
762 | { |
763 | int errcode = 0; | |
d49c3d61 | 764 | uint8_t *local_transfer_buffer; |
4bf21fa4 | 765 | |
d49c3d61 KAM |
766 | local_transfer_buffer = kmalloc(1, GFP_KERNEL); |
767 | if (!local_transfer_buffer) | |
768 | return -ENOMEM; | |
6742c0af BP |
769 | |
770 | /* 7f92 to one */ | |
d49c3d61 | 771 | *local_transfer_buffer = 1; |
6742c0af BP |
772 | errcode = usb_control_msg(usbduxsub->usbdev, |
773 | usb_sndctrlpipe(usbduxsub->usbdev, 0), | |
774 | /* bRequest, "Firmware" */ | |
775 | USBDUXSUB_FIRMWARE, | |
776 | /* bmRequestType */ | |
777 | VENDOR_DIR_OUT, | |
778 | /* Value */ | |
779 | USBDUXSUB_CPUCS, | |
780 | /* Index */ | |
781 | 0x0000, local_transfer_buffer, | |
782 | /* Length */ | |
783 | 1, | |
784 | /* Timeout */ | |
ea25371a | 785 | BULK_TIMEOUT); |
d49c3d61 | 786 | if (errcode < 0) |
6742c0af BP |
787 | dev_err(&usbduxsub->interface->dev, |
788 | "comedi_: control msg failed (stop)\n"); | |
d49c3d61 KAM |
789 | |
790 | kfree(local_transfer_buffer); | |
791 | return errcode; | |
4bf21fa4 BP |
792 | } |
793 | ||
cc92fca7 | 794 | static int usbduxsub_upload(struct usbduxsub *usbduxsub, |
94c1f90b | 795 | uint8_t *local_transfer_buffer, |
b74e5f56 | 796 | unsigned int start_addr, unsigned int len) |
4bf21fa4 BP |
797 | { |
798 | int errcode; | |
799 | ||
6742c0af | 800 | errcode = usb_control_msg(usbduxsub->usbdev, |
0a85b6f0 MT |
801 | usb_sndctrlpipe(usbduxsub->usbdev, 0), |
802 | /* brequest, firmware */ | |
803 | USBDUXSUB_FIRMWARE, | |
804 | /* bmRequestType */ | |
805 | VENDOR_DIR_OUT, | |
806 | /* value */ | |
b74e5f56 | 807 | start_addr, |
0a85b6f0 MT |
808 | /* index */ |
809 | 0x0000, | |
810 | /* our local safe buffer */ | |
811 | local_transfer_buffer, | |
812 | /* length */ | |
813 | len, | |
814 | /* timeout */ | |
ea25371a | 815 | BULK_TIMEOUT); |
0a85b6f0 | 816 | dev_dbg(&usbduxsub->interface->dev, "comedi_: result=%d\n", errcode); |
6742c0af | 817 | if (errcode < 0) { |
0a85b6f0 | 818 | dev_err(&usbduxsub->interface->dev, "comedi_: upload failed\n"); |
6742c0af | 819 | return errcode; |
4bf21fa4 BP |
820 | } |
821 | return 0; | |
822 | } | |
823 | ||
81874ff7 BP |
824 | #define FIRMWARE_MAX_LEN 0x2000 |
825 | ||
b74e5f56 JG |
826 | static int firmware_upload(struct usbduxsub *usbduxsub, |
827 | const u8 *firmware_binary, int size_firmware) | |
4bf21fa4 BP |
828 | { |
829 | int ret; | |
b74e5f56 | 830 | uint8_t *fw_buf; |
4bf21fa4 | 831 | |
b74e5f56 | 832 | if (!firmware_binary) |
4bf21fa4 | 833 | return 0; |
4274ea02 | 834 | |
b74e5f56 | 835 | if (size_firmware > FIRMWARE_MAX_LEN) { |
81874ff7 | 836 | dev_err(&usbduxsub->interface->dev, |
94c1f90b | 837 | "usbdux firmware binary it too large for FX2.\n"); |
81874ff7 BP |
838 | return -ENOMEM; |
839 | } | |
840 | ||
841 | /* we generate a local buffer for the firmware */ | |
b74e5f56 JG |
842 | fw_buf = kmemdup(firmware_binary, size_firmware, GFP_KERNEL); |
843 | if (!fw_buf) { | |
81874ff7 BP |
844 | dev_err(&usbduxsub->interface->dev, |
845 | "comedi_: mem alloc for firmware failed\n"); | |
846 | return -ENOMEM; | |
847 | } | |
81874ff7 | 848 | |
4bf21fa4 BP |
849 | ret = usbduxsub_stop(usbduxsub); |
850 | if (ret < 0) { | |
c0e0c26e GKH |
851 | dev_err(&usbduxsub->interface->dev, |
852 | "comedi_: can not stop firmware\n"); | |
b74e5f56 | 853 | kfree(fw_buf); |
4bf21fa4 BP |
854 | return ret; |
855 | } | |
81874ff7 | 856 | |
b74e5f56 | 857 | ret = usbduxsub_upload(usbduxsub, fw_buf, 0, size_firmware); |
4bf21fa4 | 858 | if (ret < 0) { |
c0e0c26e GKH |
859 | dev_err(&usbduxsub->interface->dev, |
860 | "comedi_: firmware upload failed\n"); | |
b74e5f56 | 861 | kfree(fw_buf); |
4bf21fa4 BP |
862 | return ret; |
863 | } | |
864 | ret = usbduxsub_start(usbduxsub); | |
865 | if (ret < 0) { | |
c0e0c26e GKH |
866 | dev_err(&usbduxsub->interface->dev, |
867 | "comedi_: can not start firmware\n"); | |
b74e5f56 | 868 | kfree(fw_buf); |
4bf21fa4 BP |
869 | return ret; |
870 | } | |
b74e5f56 | 871 | kfree(fw_buf); |
4bf21fa4 BP |
872 | return 0; |
873 | } | |
874 | ||
b74e5f56 | 875 | static int usbduxsub_submit_inurbs(struct usbduxsub *usbduxsub) |
4bf21fa4 | 876 | { |
b74e5f56 | 877 | int i, err_flag; |
4bf21fa4 | 878 | |
8fa07567 | 879 | if (!usbduxsub) |
4bf21fa4 | 880 | return -EFAULT; |
8fa07567 | 881 | |
4bf21fa4 | 882 | /* Submit all URBs and start the transfer on the bus */ |
b74e5f56 | 883 | for (i = 0; i < usbduxsub->num_in_buffers; i++) { |
8fa07567 | 884 | /* in case of a resubmission after an unlink... */ |
b74e5f56 JG |
885 | usbduxsub->urb_in[i]->interval = usbduxsub->ai_interval; |
886 | usbduxsub->urb_in[i]->context = usbduxsub->comedidev; | |
887 | usbduxsub->urb_in[i]->dev = usbduxsub->usbdev; | |
888 | usbduxsub->urb_in[i]->status = 0; | |
889 | usbduxsub->urb_in[i]->transfer_flags = URB_ISO_ASAP; | |
c0e0c26e GKH |
890 | dev_dbg(&usbduxsub->interface->dev, |
891 | "comedi%d: submitting in-urb[%d]: %p,%p intv=%d\n", | |
892 | usbduxsub->comedidev->minor, i, | |
b74e5f56 JG |
893 | (usbduxsub->urb_in[i]->context), |
894 | (usbduxsub->urb_in[i]->dev), | |
895 | (usbduxsub->urb_in[i]->interval)); | |
896 | err_flag = usb_submit_urb(usbduxsub->urb_in[i], GFP_ATOMIC); | |
897 | if (err_flag) { | |
c0e0c26e | 898 | dev_err(&usbduxsub->interface->dev, |
4aa3a823 | 899 | "comedi_: ai: usb_submit_urb(%d) error %d\n", |
b74e5f56 JG |
900 | i, err_flag); |
901 | return err_flag; | |
4bf21fa4 BP |
902 | } |
903 | } | |
904 | return 0; | |
905 | } | |
906 | ||
b74e5f56 | 907 | static int usbduxsub_submit_outurbs(struct usbduxsub *usbduxsub) |
4bf21fa4 | 908 | { |
b74e5f56 | 909 | int i, err_flag; |
4bf21fa4 | 910 | |
4274ea02 | 911 | if (!usbduxsub) |
4bf21fa4 | 912 | return -EFAULT; |
4274ea02 | 913 | |
b74e5f56 | 914 | for (i = 0; i < usbduxsub->num_out_buffers; i++) { |
c0e0c26e GKH |
915 | dev_dbg(&usbduxsub->interface->dev, |
916 | "comedi_: submitting out-urb[%d]\n", i); | |
e54fb9c1 | 917 | /* in case of a resubmission after an unlink... */ |
b74e5f56 JG |
918 | usbduxsub->urb_out[i]->context = usbduxsub->comedidev; |
919 | usbduxsub->urb_out[i]->dev = usbduxsub->usbdev; | |
920 | usbduxsub->urb_out[i]->status = 0; | |
921 | usbduxsub->urb_out[i]->transfer_flags = URB_ISO_ASAP; | |
922 | err_flag = usb_submit_urb(usbduxsub->urb_out[i], GFP_ATOMIC); | |
923 | if (err_flag) { | |
c0e0c26e | 924 | dev_err(&usbduxsub->interface->dev, |
4aa3a823 | 925 | "comedi_: ao: usb_submit_urb(%d) error %d\n", |
b74e5f56 JG |
926 | i, err_flag); |
927 | return err_flag; | |
4bf21fa4 BP |
928 | } |
929 | } | |
930 | return 0; | |
931 | } | |
932 | ||
0a85b6f0 MT |
933 | static int usbdux_ai_cmdtest(struct comedi_device *dev, |
934 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
4bf21fa4 | 935 | { |
cc92fca7 | 936 | struct usbduxsub *this_usbduxsub = dev->private; |
27020ffe | 937 | int err = 0, i; |
b74e5f56 | 938 | unsigned int tmp_timer; |
4274ea02 GKH |
939 | |
940 | if (!(this_usbduxsub->probed)) | |
4bf21fa4 | 941 | return -ENODEV; |
4274ea02 | 942 | |
27020ffe | 943 | /* Step 1 : check if triggers are trivially valid */ |
4bf21fa4 | 944 | |
27020ffe HS |
945 | err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT); |
946 | err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER); | |
947 | err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW); | |
948 | err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); | |
949 | err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); | |
4bf21fa4 BP |
950 | |
951 | if (err) | |
952 | return 1; | |
953 | ||
27020ffe HS |
954 | /* Step 2a : make sure trigger sources are unique */ |
955 | ||
956 | err |= cfc_check_trigger_is_unique(cmd->start_src); | |
957 | err |= cfc_check_trigger_is_unique(cmd->stop_src); | |
958 | ||
959 | /* Step 2b : and mutually compatible */ | |
4bf21fa4 BP |
960 | |
961 | if (err) | |
962 | return 2; | |
963 | ||
f4d36c7a | 964 | /* Step 3: check if arguments are trivially valid */ |
4bf21fa4 | 965 | |
f4d36c7a HS |
966 | err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); |
967 | ||
968 | if (cmd->scan_begin_src == TRIG_FOLLOW) /* internal trigger */ | |
969 | err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0); | |
4bf21fa4 BP |
970 | |
971 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
972 | if (this_usbduxsub->high_speed) { | |
e54fb9c1 GKH |
973 | /* |
974 | * In high speed mode microframes are possible. | |
975 | * However, during one microframe we can roughly | |
976 | * sample one channel. Thus, the more channels | |
977 | * are in the channel list the more time we need. | |
978 | */ | |
4bf21fa4 | 979 | i = 1; |
e54fb9c1 | 980 | /* find a power of 2 for the number of channels */ |
4274ea02 | 981 | while (i < (cmd->chanlist_len)) |
4bf21fa4 | 982 | i = i * 2; |
4274ea02 | 983 | |
f4d36c7a HS |
984 | err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, |
985 | 1000000 / 8 * i); | |
e54fb9c1 GKH |
986 | /* now calc the real sampling rate with all the |
987 | * rounding errors */ | |
b74e5f56 | 988 | tmp_timer = |
0a85b6f0 MT |
989 | ((unsigned int)(cmd->scan_begin_arg / 125000)) * |
990 | 125000; | |
e54fb9c1 GKH |
991 | } else { |
992 | /* full speed */ | |
993 | /* 1kHz scans every USB frame */ | |
f4d36c7a HS |
994 | err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, |
995 | 1000000); | |
4274ea02 GKH |
996 | /* |
997 | * calc the real sampling rate with the rounding errors | |
998 | */ | |
b74e5f56 | 999 | tmp_timer = ((unsigned int)(cmd->scan_begin_arg / |
0a85b6f0 | 1000 | 1000000)) * 1000000; |
4bf21fa4 | 1001 | } |
f4d36c7a | 1002 | err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, |
b74e5f56 | 1003 | tmp_timer); |
4bf21fa4 BP |
1004 | } |
1005 | ||
f4d36c7a HS |
1006 | err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); |
1007 | ||
4bf21fa4 BP |
1008 | if (cmd->stop_src == TRIG_COUNT) { |
1009 | /* any count is allowed */ | |
1010 | } else { | |
1011 | /* TRIG_NONE */ | |
f4d36c7a | 1012 | err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); |
4bf21fa4 BP |
1013 | } |
1014 | ||
1015 | if (err) | |
1016 | return 3; | |
1017 | ||
1018 | return 0; | |
1019 | } | |
1020 | ||
e54fb9c1 GKH |
1021 | /* |
1022 | * creates the ADC command for the MAX1271 | |
1023 | * range is the range value from comedi | |
1024 | */ | |
4bf21fa4 BP |
1025 | static int8_t create_adc_command(unsigned int chan, int range) |
1026 | { | |
1027 | int8_t p = (range <= 1); | |
1028 | int8_t r = ((range % 2) == 0); | |
1029 | return (chan << 4) | ((p == 1) << 2) | ((r == 1) << 3); | |
1030 | } | |
1031 | ||
e54fb9c1 | 1032 | /* bulk transfers to usbdux */ |
4bf21fa4 BP |
1033 | |
1034 | #define SENDADCOMMANDS 0 | |
1035 | #define SENDDACOMMANDS 1 | |
1036 | #define SENDDIOCONFIGCOMMAND 2 | |
1037 | #define SENDDIOBITSCOMMAND 3 | |
1038 | #define SENDSINGLEAD 4 | |
1039 | #define READCOUNTERCOMMAND 5 | |
1040 | #define WRITECOUNTERCOMMAND 6 | |
1041 | #define SENDPWMON 7 | |
1042 | #define SENDPWMOFF 8 | |
1043 | ||
cc92fca7 | 1044 | static int send_dux_commands(struct usbduxsub *this_usbduxsub, int cmd_type) |
4bf21fa4 BP |
1045 | { |
1046 | int result, nsent; | |
1047 | ||
1048 | this_usbduxsub->dux_commands[0] = cmd_type; | |
1049 | #ifdef NOISY_DUX_DEBUGBUG | |
c0e0c26e | 1050 | printk(KERN_DEBUG "comedi%d: usbdux: dux_commands: ", |
0a85b6f0 | 1051 | this_usbduxsub->comedidev->minor); |
4274ea02 | 1052 | for (result = 0; result < SIZEOFDUXBUFFER; result++) |
4bf21fa4 | 1053 | printk(" %02x", this_usbduxsub->dux_commands[result]); |
4bf21fa4 BP |
1054 | printk("\n"); |
1055 | #endif | |
4aa3a823 GKH |
1056 | result = usb_bulk_msg(this_usbduxsub->usbdev, |
1057 | usb_sndbulkpipe(this_usbduxsub->usbdev, | |
1058 | COMMAND_OUT_EP), | |
1059 | this_usbduxsub->dux_commands, SIZEOFDUXBUFFER, | |
ea25371a | 1060 | &nsent, BULK_TIMEOUT); |
8fa07567 | 1061 | if (result < 0) |
c0e0c26e GKH |
1062 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: " |
1063 | "could not transmit dux_command to the usb-device, " | |
1064 | "err=%d\n", this_usbduxsub->comedidev->minor, result); | |
8fa07567 | 1065 | |
4bf21fa4 BP |
1066 | return result; |
1067 | } | |
1068 | ||
cc92fca7 | 1069 | static int receive_dux_commands(struct usbduxsub *this_usbduxsub, int command) |
4bf21fa4 BP |
1070 | { |
1071 | int result = (-EFAULT); | |
1072 | int nrec; | |
1073 | int i; | |
1074 | ||
1075 | for (i = 0; i < RETRIES; i++) { | |
4aa3a823 GKH |
1076 | result = usb_bulk_msg(this_usbduxsub->usbdev, |
1077 | usb_rcvbulkpipe(this_usbduxsub->usbdev, | |
1078 | COMMAND_IN_EP), | |
b74e5f56 | 1079 | this_usbduxsub->insn_buffer, SIZEINSNBUF, |
ea25371a | 1080 | &nrec, BULK_TIMEOUT); |
4bf21fa4 | 1081 | if (result < 0) { |
c0e0c26e GKH |
1082 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: " |
1083 | "insn: USB error %d while receiving DUX command" | |
1084 | "\n", this_usbduxsub->comedidev->minor, result); | |
4bf21fa4 BP |
1085 | return result; |
1086 | } | |
b74e5f56 | 1087 | if (le16_to_cpu(this_usbduxsub->insn_buffer[0]) == command) |
4bf21fa4 | 1088 | return result; |
4bf21fa4 | 1089 | } |
4274ea02 GKH |
1090 | /* this is only reached if the data has been requested a couple of |
1091 | * times */ | |
c0e0c26e GKH |
1092 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: insn: " |
1093 | "wrong data returned from firmware: want cmd %d, got cmd %d.\n", | |
1094 | this_usbduxsub->comedidev->minor, command, | |
b74e5f56 | 1095 | le16_to_cpu(this_usbduxsub->insn_buffer[0])); |
4bf21fa4 BP |
1096 | return -EFAULT; |
1097 | } | |
1098 | ||
0a85b6f0 MT |
1099 | static int usbdux_ai_inttrig(struct comedi_device *dev, |
1100 | struct comedi_subdevice *s, unsigned int trignum) | |
4bf21fa4 BP |
1101 | { |
1102 | int ret; | |
cc92fca7 | 1103 | struct usbduxsub *this_usbduxsub = dev->private; |
4274ea02 | 1104 | if (!this_usbduxsub) |
4bf21fa4 | 1105 | return -EFAULT; |
4274ea02 | 1106 | |
4bf21fa4 BP |
1107 | down(&this_usbduxsub->sem); |
1108 | if (!(this_usbduxsub->probed)) { | |
1109 | up(&this_usbduxsub->sem); | |
1110 | return -ENODEV; | |
1111 | } | |
c0e0c26e GKH |
1112 | dev_dbg(&this_usbduxsub->interface->dev, |
1113 | "comedi%d: usbdux_ai_inttrig\n", dev->minor); | |
4bf21fa4 BP |
1114 | |
1115 | if (trignum != 0) { | |
c0e0c26e GKH |
1116 | dev_err(&this_usbduxsub->interface->dev, |
1117 | "comedi%d: usbdux_ai_inttrig: invalid trignum\n", | |
4bf21fa4 BP |
1118 | dev->minor); |
1119 | up(&this_usbduxsub->sem); | |
1120 | return -EINVAL; | |
1121 | } | |
1122 | if (!(this_usbduxsub->ai_cmd_running)) { | |
1123 | this_usbduxsub->ai_cmd_running = 1; | |
b74e5f56 | 1124 | ret = usbduxsub_submit_inurbs(this_usbduxsub); |
4bf21fa4 | 1125 | if (ret < 0) { |
c0e0c26e GKH |
1126 | dev_err(&this_usbduxsub->interface->dev, |
1127 | "comedi%d: usbdux_ai_inttrig: " | |
1128 | "urbSubmit: err=%d\n", dev->minor, ret); | |
4bf21fa4 BP |
1129 | this_usbduxsub->ai_cmd_running = 0; |
1130 | up(&this_usbduxsub->sem); | |
1131 | return ret; | |
1132 | } | |
1133 | s->async->inttrig = NULL; | |
1134 | } else { | |
c0e0c26e GKH |
1135 | dev_err(&this_usbduxsub->interface->dev, |
1136 | "comedi%d: ai_inttrig but acqu is already running\n", | |
4bf21fa4 BP |
1137 | dev->minor); |
1138 | } | |
1139 | up(&this_usbduxsub->sem); | |
1140 | return 1; | |
1141 | } | |
1142 | ||
34c43922 | 1143 | static int usbdux_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
4bf21fa4 | 1144 | { |
ea6d0d4c | 1145 | struct comedi_cmd *cmd = &s->async->cmd; |
4bf21fa4 BP |
1146 | unsigned int chan, range; |
1147 | int i, ret; | |
cc92fca7 | 1148 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1149 | int result; |
1150 | ||
8fa07567 | 1151 | if (!this_usbduxsub) |
4bf21fa4 | 1152 | return -EFAULT; |
8fa07567 | 1153 | |
c0e0c26e GKH |
1154 | dev_dbg(&this_usbduxsub->interface->dev, |
1155 | "comedi%d: usbdux_ai_cmd\n", dev->minor); | |
1156 | ||
8fa07567 | 1157 | /* block other CPUs from starting an ai_cmd */ |
4bf21fa4 BP |
1158 | down(&this_usbduxsub->sem); |
1159 | ||
1160 | if (!(this_usbduxsub->probed)) { | |
1161 | up(&this_usbduxsub->sem); | |
1162 | return -ENODEV; | |
1163 | } | |
1164 | if (this_usbduxsub->ai_cmd_running) { | |
c0e0c26e GKH |
1165 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: " |
1166 | "ai_cmd not possible. Another ai_cmd is running.\n", | |
1167 | dev->minor); | |
4bf21fa4 BP |
1168 | up(&this_usbduxsub->sem); |
1169 | return -EBUSY; | |
1170 | } | |
25985edc | 1171 | /* set current channel of the running acquisition to zero */ |
4bf21fa4 BP |
1172 | s->async->cur_chan = 0; |
1173 | ||
1174 | this_usbduxsub->dux_commands[1] = cmd->chanlist_len; | |
1175 | for (i = 0; i < cmd->chanlist_len; ++i) { | |
1176 | chan = CR_CHAN(cmd->chanlist[i]); | |
1177 | range = CR_RANGE(cmd->chanlist[i]); | |
1178 | if (i >= NUMCHANNELS) { | |
c0e0c26e GKH |
1179 | dev_err(&this_usbduxsub->interface->dev, |
1180 | "comedi%d: channel list too long\n", | |
1181 | dev->minor); | |
4bf21fa4 BP |
1182 | break; |
1183 | } | |
1184 | this_usbduxsub->dux_commands[i + 2] = | |
0a85b6f0 | 1185 | create_adc_command(chan, range); |
4bf21fa4 BP |
1186 | } |
1187 | ||
c0e0c26e GKH |
1188 | dev_dbg(&this_usbduxsub->interface->dev, |
1189 | "comedi %d: sending commands to the usb device: size=%u\n", | |
1190 | dev->minor, NUMCHANNELS); | |
1191 | ||
4274ea02 GKH |
1192 | result = send_dux_commands(this_usbduxsub, SENDADCOMMANDS); |
1193 | if (result < 0) { | |
4bf21fa4 BP |
1194 | up(&this_usbduxsub->sem); |
1195 | return result; | |
1196 | } | |
1197 | ||
1198 | if (this_usbduxsub->high_speed) { | |
8fa07567 GKH |
1199 | /* |
1200 | * every channel gets a time window of 125us. Thus, if we | |
1201 | * sample all 8 channels we need 1ms. If we sample only one | |
1202 | * channel we need only 125us | |
1203 | */ | |
4bf21fa4 | 1204 | this_usbduxsub->ai_interval = 1; |
8fa07567 | 1205 | /* find a power of 2 for the interval */ |
4bf21fa4 BP |
1206 | while ((this_usbduxsub->ai_interval) < (cmd->chanlist_len)) { |
1207 | this_usbduxsub->ai_interval = | |
0a85b6f0 | 1208 | (this_usbduxsub->ai_interval) * 2; |
4bf21fa4 | 1209 | } |
8fa07567 | 1210 | this_usbduxsub->ai_timer = cmd->scan_begin_arg / (125000 * |
94c1f90b MG |
1211 | (this_usbduxsub-> |
1212 | ai_interval)); | |
4bf21fa4 | 1213 | } else { |
8fa07567 | 1214 | /* interval always 1ms */ |
4bf21fa4 BP |
1215 | this_usbduxsub->ai_interval = 1; |
1216 | this_usbduxsub->ai_timer = cmd->scan_begin_arg / 1000000; | |
1217 | } | |
1218 | if (this_usbduxsub->ai_timer < 1) { | |
c0e0c26e GKH |
1219 | dev_err(&this_usbduxsub->interface->dev, "comedi%d: ai_cmd: " |
1220 | "timer=%d, scan_begin_arg=%d. " | |
1221 | "Not properly tested by cmdtest?\n", dev->minor, | |
1222 | this_usbduxsub->ai_timer, cmd->scan_begin_arg); | |
4bf21fa4 BP |
1223 | up(&this_usbduxsub->sem); |
1224 | return -EINVAL; | |
1225 | } | |
1226 | this_usbduxsub->ai_counter = this_usbduxsub->ai_timer; | |
1227 | ||
1228 | if (cmd->stop_src == TRIG_COUNT) { | |
e54fb9c1 | 1229 | /* data arrives as one packet */ |
4bf21fa4 BP |
1230 | this_usbduxsub->ai_sample_count = cmd->stop_arg; |
1231 | this_usbduxsub->ai_continous = 0; | |
1232 | } else { | |
25985edc | 1233 | /* continous acquisition */ |
4bf21fa4 BP |
1234 | this_usbduxsub->ai_continous = 1; |
1235 | this_usbduxsub->ai_sample_count = 0; | |
1236 | } | |
1237 | ||
1238 | if (cmd->start_src == TRIG_NOW) { | |
e54fb9c1 | 1239 | /* enable this acquisition operation */ |
4bf21fa4 | 1240 | this_usbduxsub->ai_cmd_running = 1; |
b74e5f56 | 1241 | ret = usbduxsub_submit_inurbs(this_usbduxsub); |
4bf21fa4 BP |
1242 | if (ret < 0) { |
1243 | this_usbduxsub->ai_cmd_running = 0; | |
e54fb9c1 | 1244 | /* fixme: unlink here?? */ |
4bf21fa4 BP |
1245 | up(&this_usbduxsub->sem); |
1246 | return ret; | |
1247 | } | |
1248 | s->async->inttrig = NULL; | |
1249 | } else { | |
1250 | /* TRIG_INT */ | |
e54fb9c1 GKH |
1251 | /* don't enable the acquision operation */ |
1252 | /* wait for an internal signal */ | |
4bf21fa4 BP |
1253 | s->async->inttrig = usbdux_ai_inttrig; |
1254 | } | |
1255 | up(&this_usbduxsub->sem); | |
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | /* Mode 0 is used to get a single conversion on demand */ | |
0a85b6f0 MT |
1260 | static int usbdux_ai_insn_read(struct comedi_device *dev, |
1261 | struct comedi_subdevice *s, | |
90035c08 | 1262 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1263 | { |
1264 | int i; | |
790c5541 | 1265 | unsigned int one = 0; |
4bf21fa4 BP |
1266 | int chan, range; |
1267 | int err; | |
cc92fca7 | 1268 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1269 | |
c0e0c26e | 1270 | if (!this_usbduxsub) |
4bf21fa4 | 1271 | return 0; |
c0e0c26e GKH |
1272 | |
1273 | dev_dbg(&this_usbduxsub->interface->dev, | |
1274 | "comedi%d: ai_insn_read, insn->n=%d, insn->subdev=%d\n", | |
4bf21fa4 | 1275 | dev->minor, insn->n, insn->subdev); |
c0e0c26e | 1276 | |
4bf21fa4 BP |
1277 | down(&this_usbduxsub->sem); |
1278 | if (!(this_usbduxsub->probed)) { | |
1279 | up(&this_usbduxsub->sem); | |
1280 | return -ENODEV; | |
1281 | } | |
1282 | if (this_usbduxsub->ai_cmd_running) { | |
c0e0c26e GKH |
1283 | dev_err(&this_usbduxsub->interface->dev, |
1284 | "comedi%d: ai_insn_read not possible. " | |
1285 | "Async Command is running.\n", dev->minor); | |
4bf21fa4 BP |
1286 | up(&this_usbduxsub->sem); |
1287 | return 0; | |
1288 | } | |
1289 | ||
e54fb9c1 | 1290 | /* sample one channel */ |
4bf21fa4 BP |
1291 | chan = CR_CHAN(insn->chanspec); |
1292 | range = CR_RANGE(insn->chanspec); | |
e54fb9c1 | 1293 | /* set command for the first channel */ |
4bf21fa4 BP |
1294 | this_usbduxsub->dux_commands[1] = create_adc_command(chan, range); |
1295 | ||
e54fb9c1 | 1296 | /* adc commands */ |
4274ea02 GKH |
1297 | err = send_dux_commands(this_usbduxsub, SENDSINGLEAD); |
1298 | if (err < 0) { | |
4bf21fa4 BP |
1299 | up(&this_usbduxsub->sem); |
1300 | return err; | |
1301 | } | |
1302 | ||
1303 | for (i = 0; i < insn->n; i++) { | |
4274ea02 GKH |
1304 | err = receive_dux_commands(this_usbduxsub, SENDSINGLEAD); |
1305 | if (err < 0) { | |
4bf21fa4 BP |
1306 | up(&this_usbduxsub->sem); |
1307 | return 0; | |
1308 | } | |
b74e5f56 | 1309 | one = le16_to_cpu(this_usbduxsub->insn_buffer[1]); |
8fa07567 | 1310 | if (CR_RANGE(insn->chanspec) <= 1) |
4bf21fa4 | 1311 | one = one ^ 0x800; |
8fa07567 | 1312 | |
4bf21fa4 BP |
1313 | data[i] = one; |
1314 | } | |
1315 | up(&this_usbduxsub->sem); | |
1316 | return i; | |
1317 | } | |
1318 | ||
e54fb9c1 GKH |
1319 | /************************************/ |
1320 | /* analog out */ | |
4bf21fa4 | 1321 | |
0a85b6f0 MT |
1322 | static int usbdux_ao_insn_read(struct comedi_device *dev, |
1323 | struct comedi_subdevice *s, | |
90035c08 | 1324 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1325 | { |
1326 | int i; | |
1327 | int chan = CR_CHAN(insn->chanspec); | |
cc92fca7 | 1328 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1329 | |
8fa07567 | 1330 | if (!this_usbduxsub) |
4bf21fa4 | 1331 | return -EFAULT; |
8fa07567 | 1332 | |
4bf21fa4 BP |
1333 | down(&this_usbduxsub->sem); |
1334 | if (!(this_usbduxsub->probed)) { | |
1335 | up(&this_usbduxsub->sem); | |
1336 | return -ENODEV; | |
1337 | } | |
8fa07567 | 1338 | for (i = 0; i < insn->n; i++) |
b74e5f56 | 1339 | data[i] = this_usbduxsub->out_buffer[chan]; |
8fa07567 | 1340 | |
4bf21fa4 BP |
1341 | up(&this_usbduxsub->sem); |
1342 | return i; | |
1343 | } | |
1344 | ||
0a85b6f0 MT |
1345 | static int usbdux_ao_insn_write(struct comedi_device *dev, |
1346 | struct comedi_subdevice *s, | |
90035c08 | 1347 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1348 | { |
1349 | int i, err; | |
1350 | int chan = CR_CHAN(insn->chanspec); | |
cc92fca7 | 1351 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1352 | |
8fa07567 | 1353 | if (!this_usbduxsub) |
4bf21fa4 | 1354 | return -EFAULT; |
8fa07567 | 1355 | |
c0e0c26e GKH |
1356 | dev_dbg(&this_usbduxsub->interface->dev, |
1357 | "comedi%d: ao_insn_write\n", dev->minor); | |
1358 | ||
4bf21fa4 BP |
1359 | down(&this_usbduxsub->sem); |
1360 | if (!(this_usbduxsub->probed)) { | |
1361 | up(&this_usbduxsub->sem); | |
1362 | return -ENODEV; | |
1363 | } | |
1364 | if (this_usbduxsub->ao_cmd_running) { | |
c0e0c26e GKH |
1365 | dev_err(&this_usbduxsub->interface->dev, |
1366 | "comedi%d: ao_insn_write: " | |
1367 | "ERROR: asynchronous ao_cmd is running\n", dev->minor); | |
4bf21fa4 BP |
1368 | up(&this_usbduxsub->sem); |
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | for (i = 0; i < insn->n; i++) { | |
c0e0c26e GKH |
1373 | dev_dbg(&this_usbduxsub->interface->dev, |
1374 | "comedi%d: ao_insn_write: data[chan=%d,i=%d]=%d\n", | |
4bf21fa4 | 1375 | dev->minor, chan, i, data[i]); |
c0e0c26e | 1376 | |
e54fb9c1 | 1377 | /* number of channels: 1 */ |
4bf21fa4 | 1378 | this_usbduxsub->dux_commands[1] = 1; |
e54fb9c1 | 1379 | /* one 16 bit value */ |
4bf21fa4 | 1380 | *((int16_t *) (this_usbduxsub->dux_commands + 2)) = |
0a85b6f0 | 1381 | cpu_to_le16(data[i]); |
b74e5f56 | 1382 | this_usbduxsub->out_buffer[chan] = data[i]; |
e54fb9c1 | 1383 | /* channel number */ |
4bf21fa4 | 1384 | this_usbduxsub->dux_commands[4] = (chan << 6); |
4274ea02 GKH |
1385 | err = send_dux_commands(this_usbduxsub, SENDDACOMMANDS); |
1386 | if (err < 0) { | |
4bf21fa4 BP |
1387 | up(&this_usbduxsub->sem); |
1388 | return err; | |
1389 | } | |
1390 | } | |
1391 | up(&this_usbduxsub->sem); | |
1392 | ||
1393 | return i; | |
1394 | } | |
1395 | ||
0a85b6f0 MT |
1396 | static int usbdux_ao_inttrig(struct comedi_device *dev, |
1397 | struct comedi_subdevice *s, unsigned int trignum) | |
4bf21fa4 BP |
1398 | { |
1399 | int ret; | |
cc92fca7 | 1400 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1401 | |
8fa07567 | 1402 | if (!this_usbduxsub) |
4bf21fa4 | 1403 | return -EFAULT; |
8fa07567 | 1404 | |
4bf21fa4 BP |
1405 | down(&this_usbduxsub->sem); |
1406 | if (!(this_usbduxsub->probed)) { | |
1407 | up(&this_usbduxsub->sem); | |
1408 | return -ENODEV; | |
1409 | } | |
1410 | if (trignum != 0) { | |
c0e0c26e GKH |
1411 | dev_err(&this_usbduxsub->interface->dev, |
1412 | "comedi%d: usbdux_ao_inttrig: invalid trignum\n", | |
4bf21fa4 | 1413 | dev->minor); |
85678d5d | 1414 | up(&this_usbduxsub->sem); |
4bf21fa4 BP |
1415 | return -EINVAL; |
1416 | } | |
1417 | if (!(this_usbduxsub->ao_cmd_running)) { | |
1418 | this_usbduxsub->ao_cmd_running = 1; | |
b74e5f56 | 1419 | ret = usbduxsub_submit_outurbs(this_usbduxsub); |
4bf21fa4 | 1420 | if (ret < 0) { |
c0e0c26e GKH |
1421 | dev_err(&this_usbduxsub->interface->dev, |
1422 | "comedi%d: usbdux_ao_inttrig: submitURB: " | |
1423 | "err=%d\n", dev->minor, ret); | |
4bf21fa4 BP |
1424 | this_usbduxsub->ao_cmd_running = 0; |
1425 | up(&this_usbduxsub->sem); | |
1426 | return ret; | |
1427 | } | |
1428 | s->async->inttrig = NULL; | |
1429 | } else { | |
c0e0c26e GKH |
1430 | dev_err(&this_usbduxsub->interface->dev, |
1431 | "comedi%d: ao_inttrig but acqu is already running.\n", | |
4bf21fa4 BP |
1432 | dev->minor); |
1433 | } | |
1434 | up(&this_usbduxsub->sem); | |
1435 | return 1; | |
1436 | } | |
1437 | ||
0a85b6f0 MT |
1438 | static int usbdux_ao_cmdtest(struct comedi_device *dev, |
1439 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
4bf21fa4 | 1440 | { |
cc92fca7 | 1441 | struct usbduxsub *this_usbduxsub = dev->private; |
27020ffe HS |
1442 | int err = 0; |
1443 | unsigned int flags; | |
4bf21fa4 | 1444 | |
8fa07567 | 1445 | if (!this_usbduxsub) |
4bf21fa4 | 1446 | return -EFAULT; |
8fa07567 GKH |
1447 | |
1448 | if (!(this_usbduxsub->probed)) | |
4bf21fa4 | 1449 | return -ENODEV; |
8fa07567 | 1450 | |
27020ffe HS |
1451 | /* Step 1 : check if triggers are trivially valid */ |
1452 | ||
1453 | err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT); | |
4bf21fa4 | 1454 | |
4bf21fa4 | 1455 | if (0) { /* (this_usbduxsub->high_speed) */ |
e54fb9c1 | 1456 | /* the sampling rate is set by the coversion rate */ |
27020ffe | 1457 | flags = TRIG_FOLLOW; |
4bf21fa4 | 1458 | } else { |
e54fb9c1 | 1459 | /* start a new scan (output at once) with a timer */ |
27020ffe | 1460 | flags = TRIG_TIMER; |
4bf21fa4 | 1461 | } |
27020ffe | 1462 | err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags); |
4bf21fa4 | 1463 | |
4bf21fa4 | 1464 | if (0) { /* (this_usbduxsub->high_speed) */ |
4274ea02 | 1465 | /* |
27020ffe HS |
1466 | * in usb-2.0 only one conversion it transmitted |
1467 | * but with 8kHz/n | |
4274ea02 | 1468 | */ |
27020ffe | 1469 | flags = TRIG_TIMER; |
4bf21fa4 | 1470 | } else { |
27020ffe HS |
1471 | /* |
1472 | * all conversion events happen simultaneously with | |
1473 | * a rate of 1kHz/n | |
1474 | */ | |
1475 | flags = TRIG_NOW; | |
4bf21fa4 | 1476 | } |
27020ffe | 1477 | err |= cfc_check_trigger_src(&cmd->convert_src, flags); |
4bf21fa4 | 1478 | |
27020ffe HS |
1479 | err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); |
1480 | err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); | |
4bf21fa4 BP |
1481 | |
1482 | if (err) | |
1483 | return 1; | |
1484 | ||
27020ffe HS |
1485 | /* Step 2a : make sure trigger sources are unique */ |
1486 | ||
1487 | err |= cfc_check_trigger_is_unique(cmd->start_src); | |
1488 | err |= cfc_check_trigger_is_unique(cmd->stop_src); | |
1489 | ||
1490 | /* Step 2b : and mutually compatible */ | |
4bf21fa4 BP |
1491 | |
1492 | if (err) | |
1493 | return 2; | |
1494 | ||
f4d36c7a | 1495 | /* Step 3: check if arguments are trivially valid */ |
4bf21fa4 | 1496 | |
f4d36c7a | 1497 | err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); |
4bf21fa4 | 1498 | |
f4d36c7a HS |
1499 | if (cmd->scan_begin_src == TRIG_FOLLOW) /* internal trigger */ |
1500 | err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0); | |
1501 | ||
1502 | if (cmd->scan_begin_src == TRIG_TIMER) | |
1503 | err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, | |
1504 | 1000000); | |
4bf21fa4 | 1505 | |
e54fb9c1 | 1506 | /* not used now, is for later use */ |
f4d36c7a HS |
1507 | if (cmd->convert_src == TRIG_TIMER) |
1508 | err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 125000); | |
4bf21fa4 | 1509 | |
f4d36c7a | 1510 | err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); |
4bf21fa4 BP |
1511 | |
1512 | if (cmd->stop_src == TRIG_COUNT) { | |
1513 | /* any count is allowed */ | |
1514 | } else { | |
1515 | /* TRIG_NONE */ | |
f4d36c7a | 1516 | err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); |
4bf21fa4 BP |
1517 | } |
1518 | ||
4bf21fa4 BP |
1519 | if (err) |
1520 | return 3; | |
1521 | ||
1522 | return 0; | |
1523 | } | |
1524 | ||
34c43922 | 1525 | static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
4bf21fa4 | 1526 | { |
ea6d0d4c | 1527 | struct comedi_cmd *cmd = &s->async->cmd; |
4bf21fa4 BP |
1528 | unsigned int chan, gain; |
1529 | int i, ret; | |
cc92fca7 | 1530 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1531 | |
8fa07567 | 1532 | if (!this_usbduxsub) |
4bf21fa4 | 1533 | return -EFAULT; |
8fa07567 | 1534 | |
4bf21fa4 BP |
1535 | down(&this_usbduxsub->sem); |
1536 | if (!(this_usbduxsub->probed)) { | |
1537 | up(&this_usbduxsub->sem); | |
1538 | return -ENODEV; | |
1539 | } | |
c0e0c26e GKH |
1540 | dev_dbg(&this_usbduxsub->interface->dev, |
1541 | "comedi%d: %s\n", dev->minor, __func__); | |
4bf21fa4 | 1542 | |
25985edc | 1543 | /* set current channel of the running acquisition to zero */ |
4bf21fa4 BP |
1544 | s->async->cur_chan = 0; |
1545 | for (i = 0; i < cmd->chanlist_len; ++i) { | |
1546 | chan = CR_CHAN(cmd->chanlist[i]); | |
1547 | gain = CR_RANGE(cmd->chanlist[i]); | |
1548 | if (i >= NUMOUTCHANNELS) { | |
c0e0c26e GKH |
1549 | dev_err(&this_usbduxsub->interface->dev, |
1550 | "comedi%d: %s: channel list too long\n", | |
1551 | dev->minor, __func__); | |
4bf21fa4 BP |
1552 | break; |
1553 | } | |
1554 | this_usbduxsub->dac_commands[i] = (chan << 6); | |
c0e0c26e GKH |
1555 | dev_dbg(&this_usbduxsub->interface->dev, |
1556 | "comedi%d: dac command for ch %d is %x\n", | |
4bf21fa4 | 1557 | dev->minor, i, this_usbduxsub->dac_commands[i]); |
4bf21fa4 BP |
1558 | } |
1559 | ||
e54fb9c1 GKH |
1560 | /* we count in steps of 1ms (125us) */ |
1561 | /* 125us mode not used yet */ | |
4bf21fa4 | 1562 | if (0) { /* (this_usbduxsub->high_speed) */ |
e54fb9c1 GKH |
1563 | /* 125us */ |
1564 | /* timing of the conversion itself: every 125 us */ | |
4bf21fa4 BP |
1565 | this_usbduxsub->ao_timer = cmd->convert_arg / 125000; |
1566 | } else { | |
e54fb9c1 GKH |
1567 | /* 1ms */ |
1568 | /* timing of the scan: we get all channels at once */ | |
4bf21fa4 | 1569 | this_usbduxsub->ao_timer = cmd->scan_begin_arg / 1000000; |
c0e0c26e GKH |
1570 | dev_dbg(&this_usbduxsub->interface->dev, |
1571 | "comedi%d: scan_begin_src=%d, scan_begin_arg=%d, " | |
1572 | "convert_src=%d, convert_arg=%d\n", dev->minor, | |
1573 | cmd->scan_begin_src, cmd->scan_begin_arg, | |
1574 | cmd->convert_src, cmd->convert_arg); | |
1575 | dev_dbg(&this_usbduxsub->interface->dev, | |
1576 | "comedi%d: ao_timer=%d (ms)\n", | |
4bf21fa4 | 1577 | dev->minor, this_usbduxsub->ao_timer); |
4bf21fa4 | 1578 | if (this_usbduxsub->ao_timer < 1) { |
c0e0c26e GKH |
1579 | dev_err(&this_usbduxsub->interface->dev, |
1580 | "comedi%d: usbdux: ao_timer=%d, " | |
1581 | "scan_begin_arg=%d. " | |
1582 | "Not properly tested by cmdtest?\n", | |
1583 | dev->minor, this_usbduxsub->ao_timer, | |
1584 | cmd->scan_begin_arg); | |
4bf21fa4 BP |
1585 | up(&this_usbduxsub->sem); |
1586 | return -EINVAL; | |
1587 | } | |
1588 | } | |
1589 | this_usbduxsub->ao_counter = this_usbduxsub->ao_timer; | |
1590 | ||
1591 | if (cmd->stop_src == TRIG_COUNT) { | |
25985edc | 1592 | /* not continuous */ |
e54fb9c1 GKH |
1593 | /* counter */ |
1594 | /* high speed also scans everything at once */ | |
4bf21fa4 BP |
1595 | if (0) { /* (this_usbduxsub->high_speed) */ |
1596 | this_usbduxsub->ao_sample_count = | |
0a85b6f0 | 1597 | (cmd->stop_arg) * (cmd->scan_end_arg); |
4bf21fa4 | 1598 | } else { |
e54fb9c1 GKH |
1599 | /* there's no scan as the scan has been */ |
1600 | /* perf inside the FX2 */ | |
1601 | /* data arrives as one packet */ | |
4bf21fa4 BP |
1602 | this_usbduxsub->ao_sample_count = cmd->stop_arg; |
1603 | } | |
1604 | this_usbduxsub->ao_continous = 0; | |
1605 | } else { | |
25985edc | 1606 | /* continous acquisition */ |
4bf21fa4 BP |
1607 | this_usbduxsub->ao_continous = 1; |
1608 | this_usbduxsub->ao_sample_count = 0; | |
1609 | } | |
1610 | ||
1611 | if (cmd->start_src == TRIG_NOW) { | |
e54fb9c1 | 1612 | /* enable this acquisition operation */ |
4bf21fa4 | 1613 | this_usbduxsub->ao_cmd_running = 1; |
b74e5f56 | 1614 | ret = usbduxsub_submit_outurbs(this_usbduxsub); |
4bf21fa4 BP |
1615 | if (ret < 0) { |
1616 | this_usbduxsub->ao_cmd_running = 0; | |
e54fb9c1 | 1617 | /* fixme: unlink here?? */ |
4bf21fa4 BP |
1618 | up(&this_usbduxsub->sem); |
1619 | return ret; | |
1620 | } | |
1621 | s->async->inttrig = NULL; | |
1622 | } else { | |
1623 | /* TRIG_INT */ | |
e54fb9c1 GKH |
1624 | /* submit the urbs later */ |
1625 | /* wait for an internal signal */ | |
4bf21fa4 BP |
1626 | s->async->inttrig = usbdux_ao_inttrig; |
1627 | } | |
1628 | ||
1629 | up(&this_usbduxsub->sem); | |
1630 | return 0; | |
1631 | } | |
1632 | ||
0a85b6f0 MT |
1633 | static int usbdux_dio_insn_config(struct comedi_device *dev, |
1634 | struct comedi_subdevice *s, | |
90035c08 | 1635 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1636 | { |
1637 | int chan = CR_CHAN(insn->chanspec); | |
1638 | ||
1639 | /* The input or output configuration of each digital line is | |
1640 | * configured by a special insn_config instruction. chanspec | |
1641 | * contains the channel to be changed, and data[0] contains the | |
1642 | * value COMEDI_INPUT or COMEDI_OUTPUT. */ | |
1643 | ||
1644 | switch (data[0]) { | |
1645 | case INSN_CONFIG_DIO_OUTPUT: | |
1646 | s->io_bits |= 1 << chan; /* 1 means Out */ | |
1647 | break; | |
1648 | case INSN_CONFIG_DIO_INPUT: | |
1649 | s->io_bits &= ~(1 << chan); | |
1650 | break; | |
1651 | case INSN_CONFIG_DIO_QUERY: | |
1652 | data[1] = | |
0a85b6f0 | 1653 | (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; |
4bf21fa4 BP |
1654 | break; |
1655 | default: | |
1656 | return -EINVAL; | |
1657 | break; | |
1658 | } | |
e54fb9c1 GKH |
1659 | /* we don't tell the firmware here as it would take 8 frames */ |
1660 | /* to submit the information. We do it in the insn_bits. */ | |
4bf21fa4 BP |
1661 | return insn->n; |
1662 | } | |
1663 | ||
0a85b6f0 MT |
1664 | static int usbdux_dio_insn_bits(struct comedi_device *dev, |
1665 | struct comedi_subdevice *s, | |
90035c08 | 1666 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 BP |
1667 | { |
1668 | ||
cc92fca7 | 1669 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1670 | int err; |
1671 | ||
8fa07567 | 1672 | if (!this_usbduxsub) |
4bf21fa4 | 1673 | return -EFAULT; |
8fa07567 | 1674 | |
4bf21fa4 BP |
1675 | down(&this_usbduxsub->sem); |
1676 | ||
1677 | if (!(this_usbduxsub->probed)) { | |
1678 | up(&this_usbduxsub->sem); | |
1679 | return -ENODEV; | |
1680 | } | |
1681 | ||
1682 | /* The insn data is a mask in data[0] and the new data | |
1683 | * in data[1], each channel cooresponding to a bit. */ | |
1684 | s->state &= ~data[0]; | |
1685 | s->state |= data[0] & data[1]; | |
1686 | this_usbduxsub->dux_commands[1] = s->io_bits; | |
1687 | this_usbduxsub->dux_commands[2] = s->state; | |
1688 | ||
e54fb9c1 GKH |
1689 | /* This command also tells the firmware to return */ |
1690 | /* the digital input lines */ | |
4274ea02 GKH |
1691 | err = send_dux_commands(this_usbduxsub, SENDDIOBITSCOMMAND); |
1692 | if (err < 0) { | |
4bf21fa4 BP |
1693 | up(&this_usbduxsub->sem); |
1694 | return err; | |
1695 | } | |
4274ea02 GKH |
1696 | err = receive_dux_commands(this_usbduxsub, SENDDIOBITSCOMMAND); |
1697 | if (err < 0) { | |
4bf21fa4 BP |
1698 | up(&this_usbduxsub->sem); |
1699 | return err; | |
1700 | } | |
1701 | ||
b74e5f56 | 1702 | data[1] = le16_to_cpu(this_usbduxsub->insn_buffer[1]); |
4bf21fa4 | 1703 | up(&this_usbduxsub->sem); |
a2714e3e | 1704 | return insn->n; |
4bf21fa4 BP |
1705 | } |
1706 | ||
8fa07567 | 1707 | /* reads the 4 counters, only two are used just now */ |
0a85b6f0 MT |
1708 | static int usbdux_counter_read(struct comedi_device *dev, |
1709 | struct comedi_subdevice *s, | |
90035c08 | 1710 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1711 | { |
cc92fca7 | 1712 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1713 | int chan = insn->chanspec; |
1714 | int err; | |
1715 | ||
8fa07567 | 1716 | if (!this_usbduxsub) |
4bf21fa4 | 1717 | return -EFAULT; |
4bf21fa4 BP |
1718 | |
1719 | down(&this_usbduxsub->sem); | |
1720 | ||
1721 | if (!(this_usbduxsub->probed)) { | |
1722 | up(&this_usbduxsub->sem); | |
1723 | return -ENODEV; | |
1724 | } | |
1725 | ||
4274ea02 GKH |
1726 | err = send_dux_commands(this_usbduxsub, READCOUNTERCOMMAND); |
1727 | if (err < 0) { | |
4bf21fa4 BP |
1728 | up(&this_usbduxsub->sem); |
1729 | return err; | |
1730 | } | |
1731 | ||
4274ea02 GKH |
1732 | err = receive_dux_commands(this_usbduxsub, READCOUNTERCOMMAND); |
1733 | if (err < 0) { | |
4bf21fa4 BP |
1734 | up(&this_usbduxsub->sem); |
1735 | return err; | |
1736 | } | |
1737 | ||
b74e5f56 | 1738 | data[0] = le16_to_cpu(this_usbduxsub->insn_buffer[chan + 1]); |
4bf21fa4 BP |
1739 | up(&this_usbduxsub->sem); |
1740 | return 1; | |
1741 | } | |
1742 | ||
0a85b6f0 MT |
1743 | static int usbdux_counter_write(struct comedi_device *dev, |
1744 | struct comedi_subdevice *s, | |
90035c08 | 1745 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1746 | { |
cc92fca7 | 1747 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1748 | int err; |
1749 | ||
8fa07567 | 1750 | if (!this_usbduxsub) |
4bf21fa4 | 1751 | return -EFAULT; |
4bf21fa4 BP |
1752 | |
1753 | down(&this_usbduxsub->sem); | |
1754 | ||
1755 | if (!(this_usbduxsub->probed)) { | |
1756 | up(&this_usbduxsub->sem); | |
1757 | return -ENODEV; | |
1758 | } | |
1759 | ||
1760 | this_usbduxsub->dux_commands[1] = insn->chanspec; | |
1761 | *((int16_t *) (this_usbduxsub->dux_commands + 2)) = cpu_to_le16(*data); | |
1762 | ||
4274ea02 GKH |
1763 | err = send_dux_commands(this_usbduxsub, WRITECOUNTERCOMMAND); |
1764 | if (err < 0) { | |
4bf21fa4 BP |
1765 | up(&this_usbduxsub->sem); |
1766 | return err; | |
1767 | } | |
1768 | ||
1769 | up(&this_usbduxsub->sem); | |
1770 | ||
1771 | return 1; | |
1772 | } | |
1773 | ||
0a85b6f0 MT |
1774 | static int usbdux_counter_config(struct comedi_device *dev, |
1775 | struct comedi_subdevice *s, | |
90035c08 | 1776 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 1777 | { |
e54fb9c1 | 1778 | /* nothing to do so far */ |
4bf21fa4 BP |
1779 | return 2; |
1780 | } | |
1781 | ||
e54fb9c1 GKH |
1782 | /***********************************/ |
1783 | /* PWM */ | |
4bf21fa4 | 1784 | |
b74e5f56 | 1785 | static int usbduxsub_unlink_pwm_urbs(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 | 1786 | { |
4bf21fa4 BP |
1787 | int err = 0; |
1788 | ||
b74e5f56 JG |
1789 | if (usbduxsub_tmp && usbduxsub_tmp->urb_pwm) { |
1790 | if (usbduxsub_tmp->urb_pwm) | |
1791 | usb_kill_urb(usbduxsub_tmp->urb_pwm); | |
c0e0c26e GKH |
1792 | dev_dbg(&usbduxsub_tmp->interface->dev, |
1793 | "comedi: unlinked PwmURB: res=%d\n", err); | |
4bf21fa4 BP |
1794 | } |
1795 | return err; | |
1796 | } | |
1797 | ||
1798 | /* This cancels a running acquisition operation | |
1799 | * in any context. | |
1800 | */ | |
cc92fca7 | 1801 | static int usbdux_pwm_stop(struct usbduxsub *this_usbduxsub, int do_unlink) |
4bf21fa4 BP |
1802 | { |
1803 | int ret = 0; | |
1804 | ||
c0e0c26e | 1805 | if (!this_usbduxsub) |
4bf21fa4 | 1806 | return -EFAULT; |
c0e0c26e GKH |
1807 | |
1808 | dev_dbg(&this_usbduxsub->interface->dev, "comedi: %s\n", __func__); | |
8fa07567 | 1809 | if (do_unlink) |
b74e5f56 | 1810 | ret = usbduxsub_unlink_pwm_urbs(this_usbduxsub); |
8fa07567 | 1811 | |
4bf21fa4 BP |
1812 | this_usbduxsub->pwm_cmd_running = 0; |
1813 | ||
1814 | return ret; | |
1815 | } | |
1816 | ||
8fa07567 | 1817 | /* force unlink - is called by comedi */ |
0a85b6f0 MT |
1818 | static int usbdux_pwm_cancel(struct comedi_device *dev, |
1819 | struct comedi_subdevice *s) | |
4bf21fa4 | 1820 | { |
cc92fca7 | 1821 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
1822 | int res = 0; |
1823 | ||
8fa07567 | 1824 | /* unlink only if it is really running */ |
4bf21fa4 BP |
1825 | res = usbdux_pwm_stop(this_usbduxsub, this_usbduxsub->pwm_cmd_running); |
1826 | ||
c0e0c26e GKH |
1827 | dev_dbg(&this_usbduxsub->interface->dev, |
1828 | "comedi %d: sending pwm off command to the usb device.\n", | |
4bf21fa4 | 1829 | dev->minor); |
4bf21fa4 | 1830 | |
c5274ab0 | 1831 | return send_dux_commands(this_usbduxsub, SENDPWMOFF); |
4bf21fa4 BP |
1832 | } |
1833 | ||
4bf21fa4 BP |
1834 | static void usbduxsub_pwm_irq(struct urb *urb) |
1835 | { | |
4bf21fa4 | 1836 | int ret; |
cc92fca7 | 1837 | struct usbduxsub *this_usbduxsub; |
71b5f4f1 | 1838 | struct comedi_device *this_comedidev; |
34c43922 | 1839 | struct comedi_subdevice *s; |
4bf21fa4 | 1840 | |
c0e0c26e | 1841 | /* printk(KERN_DEBUG "PWM: IRQ\n"); */ |
4bf21fa4 | 1842 | |
e54fb9c1 | 1843 | /* the context variable points to the subdevice */ |
4bf21fa4 | 1844 | this_comedidev = urb->context; |
cc92fca7 | 1845 | /* the private structure of the subdevice is struct usbduxsub */ |
4bf21fa4 | 1846 | this_usbduxsub = this_comedidev->private; |
4bf21fa4 | 1847 | |
4760904f | 1848 | s = &this_comedidev->subdevices[SUBDEV_DA]; |
4bf21fa4 BP |
1849 | |
1850 | switch (urb->status) { | |
1851 | case 0: | |
1852 | /* success */ | |
1853 | break; | |
1854 | ||
4bf21fa4 BP |
1855 | case -ECONNRESET: |
1856 | case -ENOENT: | |
1857 | case -ESHUTDOWN: | |
1858 | case -ECONNABORTED: | |
8fa07567 GKH |
1859 | /* |
1860 | * after an unlink command, unplug, ... etc | |
1861 | * no unlink needed here. Already shutting down. | |
1862 | */ | |
1863 | if (this_usbduxsub->pwm_cmd_running) | |
4bf21fa4 | 1864 | usbdux_pwm_stop(this_usbduxsub, 0); |
8fa07567 | 1865 | |
4bf21fa4 BP |
1866 | return; |
1867 | ||
4bf21fa4 | 1868 | default: |
8fa07567 | 1869 | /* a real error */ |
4bf21fa4 | 1870 | if (this_usbduxsub->pwm_cmd_running) { |
c0e0c26e GKH |
1871 | dev_err(&this_usbduxsub->interface->dev, |
1872 | "comedi_: Non-zero urb status received in " | |
1873 | "pwm intr context: %d\n", urb->status); | |
4bf21fa4 BP |
1874 | usbdux_pwm_stop(this_usbduxsub, 0); |
1875 | } | |
1876 | return; | |
1877 | } | |
1878 | ||
8fa07567 GKH |
1879 | /* are we actually running? */ |
1880 | if (!(this_usbduxsub->pwm_cmd_running)) | |
4bf21fa4 | 1881 | return; |
4bf21fa4 | 1882 | |
b74e5f56 | 1883 | urb->transfer_buffer_length = this_usbduxsub->size_pwm_buf; |
4bf21fa4 BP |
1884 | urb->dev = this_usbduxsub->usbdev; |
1885 | urb->status = 0; | |
1886 | if (this_usbduxsub->pwm_cmd_running) { | |
4aa3a823 | 1887 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
4274ea02 | 1888 | if (ret < 0) { |
c0e0c26e GKH |
1889 | dev_err(&this_usbduxsub->interface->dev, |
1890 | "comedi_: pwm urb resubm failed in int-cont. " | |
1891 | "ret=%d", ret); | |
8fa07567 | 1892 | if (ret == EL2NSYNC) |
c0e0c26e GKH |
1893 | dev_err(&this_usbduxsub->interface->dev, |
1894 | "buggy USB host controller or bug in " | |
1895 | "IRQ handling!\n"); | |
8fa07567 GKH |
1896 | |
1897 | /* don't do an unlink here */ | |
4bf21fa4 BP |
1898 | usbdux_pwm_stop(this_usbduxsub, 0); |
1899 | } | |
1900 | } | |
1901 | } | |
1902 | ||
b74e5f56 | 1903 | static int usbduxsub_submit_pwm_urbs(struct usbduxsub *usbduxsub) |
4bf21fa4 | 1904 | { |
b74e5f56 | 1905 | int err_flag; |
4bf21fa4 | 1906 | |
8fa07567 | 1907 | if (!usbduxsub) |
4bf21fa4 | 1908 | return -EFAULT; |
8fa07567 | 1909 | |
c0e0c26e | 1910 | dev_dbg(&usbduxsub->interface->dev, "comedi_: submitting pwm-urb\n"); |
4bf21fa4 | 1911 | |
c0e0c26e | 1912 | /* in case of a resubmission after an unlink... */ |
b74e5f56 | 1913 | usb_fill_bulk_urb(usbduxsub->urb_pwm, |
0a85b6f0 MT |
1914 | usbduxsub->usbdev, |
1915 | usb_sndbulkpipe(usbduxsub->usbdev, PWM_EP), | |
b74e5f56 JG |
1916 | usbduxsub->urb_pwm->transfer_buffer, |
1917 | usbduxsub->size_pwm_buf, usbduxsub_pwm_irq, | |
0a85b6f0 | 1918 | usbduxsub->comedidev); |
4bf21fa4 | 1919 | |
b74e5f56 JG |
1920 | err_flag = usb_submit_urb(usbduxsub->urb_pwm, GFP_ATOMIC); |
1921 | if (err_flag) { | |
c0e0c26e | 1922 | dev_err(&usbduxsub->interface->dev, |
4aa3a823 | 1923 | "comedi_: usbdux: pwm: usb_submit_urb error %d\n", |
b74e5f56 JG |
1924 | err_flag); |
1925 | return err_flag; | |
4bf21fa4 BP |
1926 | } |
1927 | return 0; | |
1928 | } | |
1929 | ||
0a85b6f0 MT |
1930 | static int usbdux_pwm_period(struct comedi_device *dev, |
1931 | struct comedi_subdevice *s, unsigned int period) | |
4bf21fa4 | 1932 | { |
cc92fca7 | 1933 | struct usbduxsub *this_usbduxsub = dev->private; |
8fa07567 GKH |
1934 | int fx2delay = 255; |
1935 | ||
1936 | if (period < MIN_PWM_PERIOD) { | |
c0e0c26e GKH |
1937 | dev_err(&this_usbduxsub->interface->dev, |
1938 | "comedi%d: illegal period setting for pwm.\n", | |
1939 | dev->minor); | |
4bf21fa4 BP |
1940 | return -EAGAIN; |
1941 | } else { | |
0a85b6f0 | 1942 | fx2delay = period / ((int)(6 * 512 * (1.0 / 0.033))) - 6; |
4bf21fa4 | 1943 | if (fx2delay > 255) { |
c0e0c26e GKH |
1944 | dev_err(&this_usbduxsub->interface->dev, |
1945 | "comedi%d: period %d for pwm is too low.\n", | |
0a85b6f0 | 1946 | dev->minor, period); |
4bf21fa4 BP |
1947 | return -EAGAIN; |
1948 | } | |
1949 | } | |
b74e5f56 JG |
1950 | this_usbduxsub->pwn_delay = fx2delay; |
1951 | this_usbduxsub->pwm_period = period; | |
c0e0c26e GKH |
1952 | dev_dbg(&this_usbduxsub->interface->dev, "%s: frequ=%d, period=%d\n", |
1953 | __func__, period, fx2delay); | |
4bf21fa4 BP |
1954 | return 0; |
1955 | } | |
1956 | ||
e54fb9c1 | 1957 | /* is called from insn so there's no need to do all the sanity checks */ |
0a85b6f0 MT |
1958 | static int usbdux_pwm_start(struct comedi_device *dev, |
1959 | struct comedi_subdevice *s) | |
4bf21fa4 BP |
1960 | { |
1961 | int ret, i; | |
cc92fca7 | 1962 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1963 | |
c0e0c26e GKH |
1964 | dev_dbg(&this_usbduxsub->interface->dev, "comedi%d: %s\n", |
1965 | dev->minor, __func__); | |
1966 | ||
4bf21fa4 | 1967 | if (this_usbduxsub->pwm_cmd_running) { |
e54fb9c1 | 1968 | /* already running */ |
4bf21fa4 BP |
1969 | return 0; |
1970 | } | |
1971 | ||
b74e5f56 | 1972 | this_usbduxsub->dux_commands[1] = ((int8_t) this_usbduxsub->pwn_delay); |
4274ea02 GKH |
1973 | ret = send_dux_commands(this_usbduxsub, SENDPWMON); |
1974 | if (ret < 0) | |
4bf21fa4 | 1975 | return ret; |
4274ea02 | 1976 | |
37523e84 | 1977 | /* initialise the buffer */ |
b74e5f56 JG |
1978 | for (i = 0; i < this_usbduxsub->size_pwm_buf; i++) |
1979 | ((char *)(this_usbduxsub->urb_pwm->transfer_buffer))[i] = 0; | |
4bf21fa4 BP |
1980 | |
1981 | this_usbduxsub->pwm_cmd_running = 1; | |
b74e5f56 | 1982 | ret = usbduxsub_submit_pwm_urbs(this_usbduxsub); |
4bf21fa4 BP |
1983 | if (ret < 0) { |
1984 | this_usbduxsub->pwm_cmd_running = 0; | |
1985 | return ret; | |
1986 | } | |
1987 | return 0; | |
1988 | } | |
1989 | ||
e54fb9c1 | 1990 | /* generates the bit pattern for PWM with the optional sign bit */ |
0a85b6f0 MT |
1991 | static int usbdux_pwm_pattern(struct comedi_device *dev, |
1992 | struct comedi_subdevice *s, int channel, | |
1993 | unsigned int value, unsigned int sign) | |
4bf21fa4 | 1994 | { |
cc92fca7 | 1995 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 1996 | int i, szbuf; |
b74e5f56 | 1997 | char *p_buf; |
4274ea02 GKH |
1998 | char pwm_mask; |
1999 | char sgn_mask; | |
2000 | char c; | |
4bf21fa4 | 2001 | |
4274ea02 | 2002 | if (!this_usbduxsub) |
4bf21fa4 | 2003 | return -EFAULT; |
4274ea02 | 2004 | |
e54fb9c1 | 2005 | /* this is the DIO bit which carries the PWM data */ |
4bf21fa4 | 2006 | pwm_mask = (1 << channel); |
e54fb9c1 | 2007 | /* this is the DIO bit which carries the optional direction bit */ |
4bf21fa4 | 2008 | sgn_mask = (16 << channel); |
e54fb9c1 GKH |
2009 | /* this is the buffer which will be filled with the with bit */ |
2010 | /* pattern for one period */ | |
b74e5f56 JG |
2011 | szbuf = this_usbduxsub->size_pwm_buf; |
2012 | p_buf = (char *)(this_usbduxsub->urb_pwm->transfer_buffer); | |
4bf21fa4 | 2013 | for (i = 0; i < szbuf; i++) { |
b74e5f56 | 2014 | c = *p_buf; |
e54fb9c1 | 2015 | /* reset bits */ |
4bf21fa4 | 2016 | c = c & (~pwm_mask); |
e54fb9c1 | 2017 | /* set the bit as long as the index is lower than the value */ |
4bf21fa4 BP |
2018 | if (i < value) |
2019 | c = c | pwm_mask; | |
e54fb9c1 | 2020 | /* set the optional sign bit for a relay */ |
4bf21fa4 | 2021 | if (!sign) { |
e54fb9c1 | 2022 | /* positive value */ |
4bf21fa4 BP |
2023 | c = c & (~sgn_mask); |
2024 | } else { | |
e54fb9c1 | 2025 | /* negative value */ |
4bf21fa4 BP |
2026 | c = c | sgn_mask; |
2027 | } | |
b74e5f56 | 2028 | *(p_buf++) = c; |
4bf21fa4 BP |
2029 | } |
2030 | return 1; | |
2031 | } | |
2032 | ||
0a85b6f0 MT |
2033 | static int usbdux_pwm_write(struct comedi_device *dev, |
2034 | struct comedi_subdevice *s, | |
90035c08 | 2035 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 2036 | { |
cc92fca7 | 2037 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 | 2038 | |
4274ea02 | 2039 | if (!this_usbduxsub) |
4bf21fa4 | 2040 | return -EFAULT; |
4bf21fa4 | 2041 | |
4274ea02 GKH |
2042 | if ((insn->n) != 1) { |
2043 | /* | |
2044 | * doesn't make sense to have more than one value here because | |
2045 | * it would just overwrite the PWM buffer a couple of times | |
2046 | */ | |
4bf21fa4 BP |
2047 | return -EINVAL; |
2048 | } | |
2049 | ||
4274ea02 GKH |
2050 | /* |
2051 | * the sign is set via a special INSN only, this gives us 8 bits for | |
2052 | * normal operation | |
2053 | * relay sign 0 by default | |
2054 | */ | |
0a85b6f0 | 2055 | return usbdux_pwm_pattern(dev, s, CR_CHAN(insn->chanspec), data[0], 0); |
4bf21fa4 BP |
2056 | } |
2057 | ||
0a85b6f0 MT |
2058 | static int usbdux_pwm_read(struct comedi_device *x1, |
2059 | struct comedi_subdevice *x2, struct comedi_insn *x3, | |
2060 | unsigned int *x4) | |
4bf21fa4 | 2061 | { |
8fa07567 | 2062 | /* not needed */ |
4bf21fa4 BP |
2063 | return -EINVAL; |
2064 | }; | |
2065 | ||
8fa07567 | 2066 | /* switches on/off PWM */ |
0a85b6f0 MT |
2067 | static int usbdux_pwm_config(struct comedi_device *dev, |
2068 | struct comedi_subdevice *s, | |
90035c08 | 2069 | struct comedi_insn *insn, unsigned int *data) |
4bf21fa4 | 2070 | { |
cc92fca7 | 2071 | struct usbduxsub *this_usbduxsub = dev->private; |
4bf21fa4 BP |
2072 | switch (data[0]) { |
2073 | case INSN_CONFIG_ARM: | |
8fa07567 | 2074 | /* switch it on */ |
c0e0c26e GKH |
2075 | dev_dbg(&this_usbduxsub->interface->dev, |
2076 | "comedi%d: %s: pwm on\n", dev->minor, __func__); | |
8fa07567 GKH |
2077 | /* |
2078 | * if not zero the PWM is limited to a certain time which is | |
2079 | * not supported here | |
2080 | */ | |
2081 | if (data[1] != 0) | |
4bf21fa4 | 2082 | return -EINVAL; |
4bf21fa4 BP |
2083 | return usbdux_pwm_start(dev, s); |
2084 | case INSN_CONFIG_DISARM: | |
c0e0c26e GKH |
2085 | dev_dbg(&this_usbduxsub->interface->dev, |
2086 | "comedi%d: %s: pwm off\n", dev->minor, __func__); | |
4bf21fa4 BP |
2087 | return usbdux_pwm_cancel(dev, s); |
2088 | case INSN_CONFIG_GET_PWM_STATUS: | |
8fa07567 GKH |
2089 | /* |
2090 | * to check if the USB transmission has failed or in case PWM | |
2091 | * was limited to n cycles to check if it has terminated | |
2092 | */ | |
4bf21fa4 BP |
2093 | data[1] = this_usbduxsub->pwm_cmd_running; |
2094 | return 0; | |
2095 | case INSN_CONFIG_PWM_SET_PERIOD: | |
c0e0c26e GKH |
2096 | dev_dbg(&this_usbduxsub->interface->dev, |
2097 | "comedi%d: %s: setting period\n", dev->minor, __func__); | |
8fa07567 | 2098 | return usbdux_pwm_period(dev, s, data[1]); |
4bf21fa4 | 2099 | case INSN_CONFIG_PWM_GET_PERIOD: |
b74e5f56 | 2100 | data[1] = this_usbduxsub->pwm_period; |
4bf21fa4 BP |
2101 | return 0; |
2102 | case INSN_CONFIG_PWM_SET_H_BRIDGE: | |
8fa07567 GKH |
2103 | /* value in the first byte and the sign in the second for a |
2104 | relay */ | |
4bf21fa4 | 2105 | return usbdux_pwm_pattern(dev, s, |
8fa07567 GKH |
2106 | /* the channel number */ |
2107 | CR_CHAN(insn->chanspec), | |
2108 | /* actual PWM data */ | |
2109 | data[1], | |
2110 | /* just a sign */ | |
2111 | (data[2] != 0)); | |
4bf21fa4 | 2112 | case INSN_CONFIG_PWM_GET_H_BRIDGE: |
8fa07567 | 2113 | /* values are not kept in this driver, nothing to return here */ |
4bf21fa4 BP |
2114 | return -EINVAL; |
2115 | } | |
2116 | return -EINVAL; | |
2117 | } | |
2118 | ||
8fa07567 GKH |
2119 | /* end of PWM */ |
2120 | /*****************************************************************/ | |
4bf21fa4 | 2121 | |
cc92fca7 | 2122 | static void tidy_up(struct usbduxsub *usbduxsub_tmp) |
4bf21fa4 BP |
2123 | { |
2124 | int i; | |
2125 | ||
8fa07567 | 2126 | if (!usbduxsub_tmp) |
4bf21fa4 | 2127 | return; |
c0e0c26e | 2128 | dev_dbg(&usbduxsub_tmp->interface->dev, "comedi_: tiding up\n"); |
8fa07567 GKH |
2129 | |
2130 | /* shows the usb subsystem that the driver is down */ | |
4398ecfa | 2131 | if (usbduxsub_tmp->interface) |
4bf21fa4 | 2132 | usb_set_intfdata(usbduxsub_tmp->interface, NULL); |
4bf21fa4 BP |
2133 | |
2134 | usbduxsub_tmp->probed = 0; | |
2135 | ||
b74e5f56 | 2136 | if (usbduxsub_tmp->urb_in) { |
4bf21fa4 BP |
2137 | if (usbduxsub_tmp->ai_cmd_running) { |
2138 | usbduxsub_tmp->ai_cmd_running = 0; | |
b74e5f56 | 2139 | usbduxsub_unlink_inurbs(usbduxsub_tmp); |
4bf21fa4 | 2140 | } |
b74e5f56 JG |
2141 | for (i = 0; i < usbduxsub_tmp->num_in_buffers; i++) { |
2142 | kfree(usbduxsub_tmp->urb_in[i]->transfer_buffer); | |
2143 | usbduxsub_tmp->urb_in[i]->transfer_buffer = NULL; | |
2144 | usb_kill_urb(usbduxsub_tmp->urb_in[i]); | |
2145 | usb_free_urb(usbduxsub_tmp->urb_in[i]); | |
2146 | usbduxsub_tmp->urb_in[i] = NULL; | |
4bf21fa4 | 2147 | } |
b74e5f56 JG |
2148 | kfree(usbduxsub_tmp->urb_in); |
2149 | usbduxsub_tmp->urb_in = NULL; | |
4bf21fa4 | 2150 | } |
b74e5f56 | 2151 | if (usbduxsub_tmp->urb_out) { |
4bf21fa4 BP |
2152 | if (usbduxsub_tmp->ao_cmd_running) { |
2153 | usbduxsub_tmp->ao_cmd_running = 0; | |
b74e5f56 | 2154 | usbduxsub_unlink_outurbs(usbduxsub_tmp); |
4bf21fa4 | 2155 | } |
b74e5f56 JG |
2156 | for (i = 0; i < usbduxsub_tmp->num_out_buffers; i++) { |
2157 | kfree(usbduxsub_tmp->urb_out[i]->transfer_buffer); | |
2158 | usbduxsub_tmp->urb_out[i]->transfer_buffer = NULL; | |
2159 | if (usbduxsub_tmp->urb_out[i]) { | |
2160 | usb_kill_urb(usbduxsub_tmp->urb_out[i]); | |
2161 | usb_free_urb(usbduxsub_tmp->urb_out[i]); | |
2162 | usbduxsub_tmp->urb_out[i] = NULL; | |
4bf21fa4 BP |
2163 | } |
2164 | } | |
b74e5f56 JG |
2165 | kfree(usbduxsub_tmp->urb_out); |
2166 | usbduxsub_tmp->urb_out = NULL; | |
4bf21fa4 | 2167 | } |
b74e5f56 | 2168 | if (usbduxsub_tmp->urb_pwm) { |
4bf21fa4 BP |
2169 | if (usbduxsub_tmp->pwm_cmd_running) { |
2170 | usbduxsub_tmp->pwm_cmd_running = 0; | |
b74e5f56 | 2171 | usbduxsub_unlink_pwm_urbs(usbduxsub_tmp); |
4bf21fa4 | 2172 | } |
b74e5f56 JG |
2173 | kfree(usbduxsub_tmp->urb_pwm->transfer_buffer); |
2174 | usbduxsub_tmp->urb_pwm->transfer_buffer = NULL; | |
2175 | usb_kill_urb(usbduxsub_tmp->urb_pwm); | |
2176 | usb_free_urb(usbduxsub_tmp->urb_pwm); | |
2177 | usbduxsub_tmp->urb_pwm = NULL; | |
2178 | } | |
2179 | kfree(usbduxsub_tmp->in_buffer); | |
2180 | usbduxsub_tmp->in_buffer = NULL; | |
2181 | kfree(usbduxsub_tmp->insn_buffer); | |
2182 | usbduxsub_tmp->insn_buffer = NULL; | |
2183 | kfree(usbduxsub_tmp->out_buffer); | |
2184 | usbduxsub_tmp->out_buffer = NULL; | |
8fa07567 GKH |
2185 | kfree(usbduxsub_tmp->dac_commands); |
2186 | usbduxsub_tmp->dac_commands = NULL; | |
2187 | kfree(usbduxsub_tmp->dux_commands); | |
2188 | usbduxsub_tmp->dux_commands = NULL; | |
4bf21fa4 BP |
2189 | usbduxsub_tmp->ai_cmd_running = 0; |
2190 | usbduxsub_tmp->ao_cmd_running = 0; | |
2191 | usbduxsub_tmp->pwm_cmd_running = 0; | |
2192 | } | |
2193 | ||
3403cc0f | 2194 | static int usbdux_attach_common(struct comedi_device *dev, |
5a0f2260 | 2195 | struct usbduxsub *udev) |
3403cc0f HS |
2196 | { |
2197 | int ret; | |
2198 | struct comedi_subdevice *s = NULL; | |
2199 | int n_subdevs; | |
2200 | ||
2201 | down(&udev->sem); | |
2202 | /* pointer back to the corresponding comedi device */ | |
2203 | udev->comedidev = dev; | |
2204 | ||
3403cc0f HS |
2205 | /* set number of subdevices */ |
2206 | if (udev->high_speed) { | |
2207 | /* with pwm */ | |
2208 | n_subdevs = 5; | |
2209 | } else { | |
2210 | /* without pwm */ | |
2211 | n_subdevs = 4; | |
2212 | } | |
2213 | ||
2214 | ret = comedi_alloc_subdevices(dev, n_subdevs); | |
2215 | if (ret) { | |
2216 | up(&udev->sem); | |
2217 | return ret; | |
2218 | } | |
2219 | ||
2220 | /* private structure is also simply the usb-structure */ | |
2221 | dev->private = udev; | |
2222 | ||
2223 | /* the first subdevice is the A/D converter */ | |
4760904f | 2224 | s = &dev->subdevices[SUBDEV_AD]; |
3403cc0f HS |
2225 | /* the URBs get the comedi subdevice */ |
2226 | /* which is responsible for reading */ | |
2227 | /* this is the subdevice which reads data */ | |
2228 | dev->read_subdev = s; | |
2229 | /* the subdevice receives as private structure the */ | |
2230 | /* usb-structure */ | |
2231 | s->private = NULL; | |
2232 | /* analog input */ | |
2233 | s->type = COMEDI_SUBD_AI; | |
2234 | /* readable and ref is to ground */ | |
2235 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ; | |
2236 | /* 8 channels */ | |
2237 | s->n_chan = 8; | |
2238 | /* length of the channellist */ | |
2239 | s->len_chanlist = 8; | |
2240 | /* callback functions */ | |
2241 | s->insn_read = usbdux_ai_insn_read; | |
2242 | s->do_cmdtest = usbdux_ai_cmdtest; | |
2243 | s->do_cmd = usbdux_ai_cmd; | |
2244 | s->cancel = usbdux_ai_cancel; | |
2245 | /* max value from the A/D converter (12bit) */ | |
2246 | s->maxdata = 0xfff; | |
2247 | /* range table to convert to physical units */ | |
2248 | s->range_table = (&range_usbdux_ai_range); | |
2249 | ||
2250 | /* analog out */ | |
4760904f | 2251 | s = &dev->subdevices[SUBDEV_DA]; |
3403cc0f HS |
2252 | /* analog out */ |
2253 | s->type = COMEDI_SUBD_AO; | |
2254 | /* backward pointer */ | |
2255 | dev->write_subdev = s; | |
2256 | /* the subdevice receives as private structure the */ | |
2257 | /* usb-structure */ | |
2258 | s->private = NULL; | |
2259 | /* are writable */ | |
2260 | s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE; | |
2261 | /* 4 channels */ | |
2262 | s->n_chan = 4; | |
2263 | /* length of the channellist */ | |
2264 | s->len_chanlist = 4; | |
2265 | /* 12 bit resolution */ | |
2266 | s->maxdata = 0x0fff; | |
2267 | /* bipolar range */ | |
2268 | s->range_table = (&range_usbdux_ao_range); | |
2269 | /* callback */ | |
2270 | s->do_cmdtest = usbdux_ao_cmdtest; | |
2271 | s->do_cmd = usbdux_ao_cmd; | |
2272 | s->cancel = usbdux_ao_cancel; | |
2273 | s->insn_read = usbdux_ao_insn_read; | |
2274 | s->insn_write = usbdux_ao_insn_write; | |
2275 | ||
2276 | /* digital I/O */ | |
4760904f | 2277 | s = &dev->subdevices[SUBDEV_DIO]; |
3403cc0f HS |
2278 | s->type = COMEDI_SUBD_DIO; |
2279 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
2280 | s->n_chan = 8; | |
2281 | s->maxdata = 1; | |
2282 | s->range_table = (&range_digital); | |
2283 | s->insn_bits = usbdux_dio_insn_bits; | |
2284 | s->insn_config = usbdux_dio_insn_config; | |
2285 | /* we don't use it */ | |
2286 | s->private = NULL; | |
2287 | ||
2288 | /* counter */ | |
4760904f | 2289 | s = &dev->subdevices[SUBDEV_COUNTER]; |
3403cc0f HS |
2290 | s->type = COMEDI_SUBD_COUNTER; |
2291 | s->subdev_flags = SDF_WRITABLE | SDF_READABLE; | |
2292 | s->n_chan = 4; | |
2293 | s->maxdata = 0xFFFF; | |
2294 | s->insn_read = usbdux_counter_read; | |
2295 | s->insn_write = usbdux_counter_write; | |
2296 | s->insn_config = usbdux_counter_config; | |
2297 | ||
2298 | if (udev->high_speed) { | |
2299 | /* timer / pwm */ | |
4760904f | 2300 | s = &dev->subdevices[SUBDEV_PWM]; |
3403cc0f HS |
2301 | s->type = COMEDI_SUBD_PWM; |
2302 | s->subdev_flags = SDF_WRITABLE | SDF_PWM_HBRIDGE; | |
2303 | s->n_chan = 8; | |
2304 | /* this defines the max duty cycle resolution */ | |
b74e5f56 | 2305 | s->maxdata = udev->size_pwm_buf; |
3403cc0f HS |
2306 | s->insn_write = usbdux_pwm_write; |
2307 | s->insn_read = usbdux_pwm_read; | |
2308 | s->insn_config = usbdux_pwm_config; | |
2309 | usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD); | |
2310 | } | |
2311 | /* finally decide that it's attached */ | |
2312 | udev->attached = 1; | |
2313 | ||
2314 | up(&udev->sem); | |
2315 | ||
2316 | dev_info(&udev->interface->dev, "comedi%d: attached to usbdux.\n", | |
2317 | dev->minor); | |
2318 | ||
2319 | return 0; | |
2320 | } | |
2321 | ||
807e65b0 IA |
2322 | static int usbdux_auto_attach(struct comedi_device *dev, |
2323 | unsigned long context_unused) | |
3403cc0f | 2324 | { |
807e65b0 | 2325 | struct usb_interface *uinterf = comedi_to_usb_interface(dev); |
3403cc0f HS |
2326 | int ret; |
2327 | struct usbduxsub *this_usbduxsub; | |
2328 | ||
2329 | dev->private = NULL; | |
2330 | ||
2331 | down(&start_stop_sem); | |
2332 | this_usbduxsub = usb_get_intfdata(uinterf); | |
2333 | if (!this_usbduxsub || !this_usbduxsub->probed) { | |
3818a142 | 2334 | dev_err(dev->class_dev, |
807e65b0 | 2335 | "usbdux: error: auto_attach failed, not connected\n"); |
3403cc0f HS |
2336 | ret = -ENODEV; |
2337 | } else if (this_usbduxsub->attached) { | |
3818a142 | 2338 | dev_err(dev->class_dev, |
807e65b0 | 2339 | "error: auto_attach failed, already attached\n"); |
3403cc0f HS |
2340 | ret = -ENODEV; |
2341 | } else | |
5a0f2260 | 2342 | ret = usbdux_attach_common(dev, this_usbduxsub); |
3403cc0f HS |
2343 | up(&start_stop_sem); |
2344 | return ret; | |
2345 | } | |
2346 | ||
2347 | static void usbdux_detach(struct comedi_device *dev) | |
2348 | { | |
2349 | struct usbduxsub *usb = dev->private; | |
2350 | ||
2351 | if (usb) { | |
2352 | down(&usb->sem); | |
2353 | dev->private = NULL; | |
2354 | usb->attached = 0; | |
2355 | usb->comedidev = NULL; | |
2356 | up(&usb->sem); | |
2357 | } | |
2358 | } | |
2359 | ||
2360 | static struct comedi_driver usbdux_driver = { | |
2361 | .driver_name = "usbdux", | |
2362 | .module = THIS_MODULE, | |
807e65b0 | 2363 | .auto_attach = usbdux_auto_attach, |
5a0f2260 | 2364 | .detach = usbdux_detach, |
3403cc0f HS |
2365 | }; |
2366 | ||
3403cc0f HS |
2367 | static int usbdux_usb_probe(struct usb_interface *uinterf, |
2368 | const struct usb_device_id *id) | |
4bf21fa4 BP |
2369 | { |
2370 | struct usb_device *udev = interface_to_usbdev(uinterf); | |
c0e0c26e | 2371 | struct device *dev = &uinterf->dev; |
71f89d18 | 2372 | const struct firmware *fw; |
4bf21fa4 BP |
2373 | int i; |
2374 | int index; | |
6742c0af | 2375 | int ret; |
4bf21fa4 | 2376 | |
c0e0c26e GKH |
2377 | dev_dbg(dev, "comedi_: usbdux_: " |
2378 | "finding a free structure for the usb-device\n"); | |
2379 | ||
4bf21fa4 | 2380 | down(&start_stop_sem); |
e54fb9c1 | 2381 | /* look for a free place in the usbdux array */ |
4bf21fa4 BP |
2382 | index = -1; |
2383 | for (i = 0; i < NUMUSBDUX; i++) { | |
2384 | if (!(usbduxsub[i].probed)) { | |
2385 | index = i; | |
2386 | break; | |
2387 | } | |
2388 | } | |
2389 | ||
e54fb9c1 | 2390 | /* no more space */ |
4bf21fa4 | 2391 | if (index == -1) { |
c0e0c26e | 2392 | dev_err(dev, "Too many usbdux-devices connected.\n"); |
4bf21fa4 | 2393 | up(&start_stop_sem); |
4aa3a823 | 2394 | return -EMFILE; |
4bf21fa4 | 2395 | } |
c0e0c26e GKH |
2396 | dev_dbg(dev, "comedi_: usbdux: " |
2397 | "usbduxsub[%d] is ready to connect to comedi.\n", index); | |
4bf21fa4 | 2398 | |
45f4d024 | 2399 | sema_init(&(usbduxsub[index].sem), 1); |
e54fb9c1 | 2400 | /* save a pointer to the usb device */ |
4bf21fa4 BP |
2401 | usbduxsub[index].usbdev = udev; |
2402 | ||
e54fb9c1 | 2403 | /* 2.6: save the interface itself */ |
4bf21fa4 | 2404 | usbduxsub[index].interface = uinterf; |
e54fb9c1 | 2405 | /* get the interface number from the interface */ |
4bf21fa4 | 2406 | usbduxsub[index].ifnum = uinterf->altsetting->desc.bInterfaceNumber; |
e54fb9c1 GKH |
2407 | /* hand the private data over to the usb subsystem */ |
2408 | /* will be needed for disconnect */ | |
4bf21fa4 | 2409 | usb_set_intfdata(uinterf, &(usbduxsub[index])); |
4bf21fa4 | 2410 | |
c0e0c26e GKH |
2411 | dev_dbg(dev, "comedi_: usbdux: ifnum=%d\n", usbduxsub[index].ifnum); |
2412 | ||
e54fb9c1 | 2413 | /* test if it is high speed (USB 2.0) */ |
4bf21fa4 | 2414 | usbduxsub[index].high_speed = |
0a85b6f0 | 2415 | (usbduxsub[index].usbdev->speed == USB_SPEED_HIGH); |
4bf21fa4 | 2416 | |
e54fb9c1 | 2417 | /* create space for the commands of the DA converter */ |
4bf21fa4 BP |
2418 | usbduxsub[index].dac_commands = kzalloc(NUMOUTCHANNELS, GFP_KERNEL); |
2419 | if (!usbduxsub[index].dac_commands) { | |
4bf21fa4 BP |
2420 | tidy_up(&(usbduxsub[index])); |
2421 | up(&start_stop_sem); | |
4aa3a823 | 2422 | return -ENOMEM; |
4bf21fa4 | 2423 | } |
e54fb9c1 | 2424 | /* create space for the commands going to the usb device */ |
4bf21fa4 BP |
2425 | usbduxsub[index].dux_commands = kzalloc(SIZEOFDUXBUFFER, GFP_KERNEL); |
2426 | if (!usbduxsub[index].dux_commands) { | |
4bf21fa4 BP |
2427 | tidy_up(&(usbduxsub[index])); |
2428 | up(&start_stop_sem); | |
4aa3a823 | 2429 | return -ENOMEM; |
4bf21fa4 | 2430 | } |
e54fb9c1 | 2431 | /* create space for the in buffer and set it to zero */ |
b74e5f56 JG |
2432 | usbduxsub[index].in_buffer = kzalloc(SIZEINBUF, GFP_KERNEL); |
2433 | if (!(usbduxsub[index].in_buffer)) { | |
4bf21fa4 BP |
2434 | tidy_up(&(usbduxsub[index])); |
2435 | up(&start_stop_sem); | |
4aa3a823 | 2436 | return -ENOMEM; |
4bf21fa4 | 2437 | } |
e54fb9c1 | 2438 | /* create space of the instruction buffer */ |
b74e5f56 JG |
2439 | usbduxsub[index].insn_buffer = kzalloc(SIZEINSNBUF, GFP_KERNEL); |
2440 | if (!(usbduxsub[index].insn_buffer)) { | |
4bf21fa4 BP |
2441 | tidy_up(&(usbduxsub[index])); |
2442 | up(&start_stop_sem); | |
4aa3a823 | 2443 | return -ENOMEM; |
4bf21fa4 | 2444 | } |
e54fb9c1 | 2445 | /* create space for the outbuffer */ |
b74e5f56 JG |
2446 | usbduxsub[index].out_buffer = kzalloc(SIZEOUTBUF, GFP_KERNEL); |
2447 | if (!(usbduxsub[index].out_buffer)) { | |
4bf21fa4 BP |
2448 | tidy_up(&(usbduxsub[index])); |
2449 | up(&start_stop_sem); | |
4aa3a823 | 2450 | return -ENOMEM; |
4bf21fa4 | 2451 | } |
8fa07567 | 2452 | /* setting to alternate setting 3: enabling iso ep and bulk ep. */ |
4bf21fa4 | 2453 | i = usb_set_interface(usbduxsub[index].usbdev, |
8fa07567 | 2454 | usbduxsub[index].ifnum, 3); |
4bf21fa4 | 2455 | if (i < 0) { |
c0e0c26e GKH |
2456 | dev_err(dev, "comedi_: usbdux%d: " |
2457 | "could not set alternate setting 3 in high speed.\n", | |
2458 | index); | |
4bf21fa4 BP |
2459 | tidy_up(&(usbduxsub[index])); |
2460 | up(&start_stop_sem); | |
4aa3a823 | 2461 | return -ENODEV; |
4bf21fa4 | 2462 | } |
8fa07567 | 2463 | if (usbduxsub[index].high_speed) |
b74e5f56 | 2464 | usbduxsub[index].num_in_buffers = NUMOFINBUFFERSHIGH; |
8fa07567 | 2465 | else |
b74e5f56 | 2466 | usbduxsub[index].num_in_buffers = NUMOFINBUFFERSFULL; |
8fa07567 | 2467 | |
b74e5f56 JG |
2468 | usbduxsub[index].urb_in = |
2469 | kcalloc(usbduxsub[index].num_in_buffers, sizeof(struct urb *), | |
78110bb8 | 2470 | GFP_KERNEL); |
b74e5f56 | 2471 | if (!(usbduxsub[index].urb_in)) { |
4bf21fa4 BP |
2472 | tidy_up(&(usbduxsub[index])); |
2473 | up(&start_stop_sem); | |
4aa3a823 | 2474 | return -ENOMEM; |
4bf21fa4 | 2475 | } |
b74e5f56 | 2476 | for (i = 0; i < usbduxsub[index].num_in_buffers; i++) { |
e54fb9c1 | 2477 | /* one frame: 1ms */ |
b74e5f56 JG |
2478 | usbduxsub[index].urb_in[i] = usb_alloc_urb(1, GFP_KERNEL); |
2479 | if (usbduxsub[index].urb_in[i] == NULL) { | |
c0e0c26e GKH |
2480 | dev_err(dev, "comedi_: usbdux%d: " |
2481 | "Could not alloc. urb(%d)\n", index, i); | |
4bf21fa4 BP |
2482 | tidy_up(&(usbduxsub[index])); |
2483 | up(&start_stop_sem); | |
4aa3a823 | 2484 | return -ENOMEM; |
4bf21fa4 | 2485 | } |
b74e5f56 | 2486 | usbduxsub[index].urb_in[i]->dev = usbduxsub[index].usbdev; |
e54fb9c1 GKH |
2487 | /* will be filled later with a pointer to the comedi-device */ |
2488 | /* and ONLY then the urb should be submitted */ | |
b74e5f56 JG |
2489 | usbduxsub[index].urb_in[i]->context = NULL; |
2490 | usbduxsub[index].urb_in[i]->pipe = | |
0a85b6f0 | 2491 | usb_rcvisocpipe(usbduxsub[index].usbdev, ISOINEP); |
b74e5f56 JG |
2492 | usbduxsub[index].urb_in[i]->transfer_flags = URB_ISO_ASAP; |
2493 | usbduxsub[index].urb_in[i]->transfer_buffer = | |
0a85b6f0 | 2494 | kzalloc(SIZEINBUF, GFP_KERNEL); |
b74e5f56 | 2495 | if (!(usbduxsub[index].urb_in[i]->transfer_buffer)) { |
4bf21fa4 BP |
2496 | tidy_up(&(usbduxsub[index])); |
2497 | up(&start_stop_sem); | |
4aa3a823 | 2498 | return -ENOMEM; |
4bf21fa4 | 2499 | } |
b74e5f56 JG |
2500 | usbduxsub[index].urb_in[i]->complete = usbduxsub_ai_isoc_irq; |
2501 | usbduxsub[index].urb_in[i]->number_of_packets = 1; | |
2502 | usbduxsub[index].urb_in[i]->transfer_buffer_length = SIZEINBUF; | |
2503 | usbduxsub[index].urb_in[i]->iso_frame_desc[0].offset = 0; | |
2504 | usbduxsub[index].urb_in[i]->iso_frame_desc[0].length = SIZEINBUF; | |
4bf21fa4 BP |
2505 | } |
2506 | ||
8fa07567 GKH |
2507 | /* out */ |
2508 | if (usbduxsub[index].high_speed) | |
b74e5f56 | 2509 | usbduxsub[index].num_out_buffers = NUMOFOUTBUFFERSHIGH; |
8fa07567 | 2510 | else |
b74e5f56 | 2511 | usbduxsub[index].num_out_buffers = NUMOFOUTBUFFERSFULL; |
8fa07567 | 2512 | |
b74e5f56 JG |
2513 | usbduxsub[index].urb_out = |
2514 | kcalloc(usbduxsub[index].num_out_buffers, sizeof(struct urb *), | |
78110bb8 | 2515 | GFP_KERNEL); |
b74e5f56 | 2516 | if (!(usbduxsub[index].urb_out)) { |
4bf21fa4 BP |
2517 | tidy_up(&(usbduxsub[index])); |
2518 | up(&start_stop_sem); | |
4aa3a823 | 2519 | return -ENOMEM; |
4bf21fa4 | 2520 | } |
b74e5f56 | 2521 | for (i = 0; i < usbduxsub[index].num_out_buffers; i++) { |
e54fb9c1 | 2522 | /* one frame: 1ms */ |
b74e5f56 JG |
2523 | usbduxsub[index].urb_out[i] = usb_alloc_urb(1, GFP_KERNEL); |
2524 | if (usbduxsub[index].urb_out[i] == NULL) { | |
c0e0c26e GKH |
2525 | dev_err(dev, "comedi_: usbdux%d: " |
2526 | "Could not alloc. urb(%d)\n", index, i); | |
4bf21fa4 BP |
2527 | tidy_up(&(usbduxsub[index])); |
2528 | up(&start_stop_sem); | |
4aa3a823 | 2529 | return -ENOMEM; |
4bf21fa4 | 2530 | } |
b74e5f56 | 2531 | usbduxsub[index].urb_out[i]->dev = usbduxsub[index].usbdev; |
e54fb9c1 GKH |
2532 | /* will be filled later with a pointer to the comedi-device */ |
2533 | /* and ONLY then the urb should be submitted */ | |
b74e5f56 JG |
2534 | usbduxsub[index].urb_out[i]->context = NULL; |
2535 | usbduxsub[index].urb_out[i]->pipe = | |
0a85b6f0 | 2536 | usb_sndisocpipe(usbduxsub[index].usbdev, ISOOUTEP); |
b74e5f56 JG |
2537 | usbduxsub[index].urb_out[i]->transfer_flags = URB_ISO_ASAP; |
2538 | usbduxsub[index].urb_out[i]->transfer_buffer = | |
0a85b6f0 | 2539 | kzalloc(SIZEOUTBUF, GFP_KERNEL); |
b74e5f56 | 2540 | if (!(usbduxsub[index].urb_out[i]->transfer_buffer)) { |
4bf21fa4 BP |
2541 | tidy_up(&(usbduxsub[index])); |
2542 | up(&start_stop_sem); | |
4aa3a823 | 2543 | return -ENOMEM; |
4bf21fa4 | 2544 | } |
b74e5f56 JG |
2545 | usbduxsub[index].urb_out[i]->complete = usbduxsub_ao_isoc_irq; |
2546 | usbduxsub[index].urb_out[i]->number_of_packets = 1; | |
2547 | usbduxsub[index].urb_out[i]->transfer_buffer_length = SIZEOUTBUF; | |
2548 | usbduxsub[index].urb_out[i]->iso_frame_desc[0].offset = 0; | |
2549 | usbduxsub[index].urb_out[i]->iso_frame_desc[0].length = | |
0a85b6f0 | 2550 | SIZEOUTBUF; |
4bf21fa4 | 2551 | if (usbduxsub[index].high_speed) { |
e54fb9c1 | 2552 | /* uframes */ |
b74e5f56 | 2553 | usbduxsub[index].urb_out[i]->interval = 8; |
4bf21fa4 | 2554 | } else { |
e54fb9c1 | 2555 | /* frames */ |
b74e5f56 | 2556 | usbduxsub[index].urb_out[i]->interval = 1; |
4bf21fa4 BP |
2557 | } |
2558 | } | |
2559 | ||
e54fb9c1 | 2560 | /* pwm */ |
4bf21fa4 | 2561 | if (usbduxsub[index].high_speed) { |
4274ea02 | 2562 | /* max bulk ep size in high speed */ |
b74e5f56 JG |
2563 | usbduxsub[index].size_pwm_buf = 512; |
2564 | usbduxsub[index].urb_pwm = usb_alloc_urb(0, GFP_KERNEL); | |
2565 | if (usbduxsub[index].urb_pwm == NULL) { | |
c0e0c26e GKH |
2566 | dev_err(dev, "comedi_: usbdux%d: " |
2567 | "Could not alloc. pwm urb\n", index); | |
4bf21fa4 BP |
2568 | tidy_up(&(usbduxsub[index])); |
2569 | up(&start_stop_sem); | |
4aa3a823 | 2570 | return -ENOMEM; |
4bf21fa4 | 2571 | } |
b74e5f56 JG |
2572 | usbduxsub[index].urb_pwm->transfer_buffer = |
2573 | kzalloc(usbduxsub[index].size_pwm_buf, GFP_KERNEL); | |
2574 | if (!(usbduxsub[index].urb_pwm->transfer_buffer)) { | |
4bf21fa4 BP |
2575 | tidy_up(&(usbduxsub[index])); |
2576 | up(&start_stop_sem); | |
4aa3a823 | 2577 | return -ENOMEM; |
4bf21fa4 BP |
2578 | } |
2579 | } else { | |
b74e5f56 JG |
2580 | usbduxsub[index].urb_pwm = NULL; |
2581 | usbduxsub[index].size_pwm_buf = 0; | |
4bf21fa4 BP |
2582 | } |
2583 | ||
2584 | usbduxsub[index].ai_cmd_running = 0; | |
2585 | usbduxsub[index].ao_cmd_running = 0; | |
2586 | usbduxsub[index].pwm_cmd_running = 0; | |
2587 | ||
e54fb9c1 | 2588 | /* we've reached the bottom of the function */ |
4bf21fa4 BP |
2589 | usbduxsub[index].probed = 1; |
2590 | up(&start_stop_sem); | |
6742c0af | 2591 | |
71f89d18 HS |
2592 | ret = request_firmware(&fw, FIRMWARE, &udev->dev); |
2593 | if (ret == 0) { | |
2594 | ret = firmware_upload(&usbduxsub[index], fw->data, fw->size); | |
2595 | release_firmware(fw); | |
6742c0af | 2596 | } |
71f89d18 HS |
2597 | if (ret < 0) |
2598 | return ret; | |
6742c0af | 2599 | |
71f89d18 | 2600 | return comedi_usb_auto_config(uinterf, &usbdux_driver, 0); |
4bf21fa4 BP |
2601 | } |
2602 | ||
3403cc0f | 2603 | static void usbdux_usb_disconnect(struct usb_interface *intf) |
4bf21fa4 | 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 | } | |
d8b6ca08 | 2617 | comedi_usb_auto_unconfig(intf); |
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 | ||
3403cc0f HS |
2626 | static const struct usb_device_id usbdux_usb_table[] = { |
2627 | { USB_DEVICE(0x13d8, 0x0001) }, | |
2628 | { USB_DEVICE(0x13d8, 0x0002) }, | |
2629 | { } | |
4bf21fa4 BP |
2630 | }; |
2631 | ||
3403cc0f | 2632 | MODULE_DEVICE_TABLE(usb, usbdux_usb_table); |
4bf21fa4 | 2633 | |
42318c32 | 2634 | static struct usb_driver usbdux_usb_driver = { |
3403cc0f HS |
2635 | .name = "usbdux", |
2636 | .probe = usbdux_usb_probe, | |
2637 | .disconnect = usbdux_usb_disconnect, | |
2638 | .id_table = usbdux_usb_table, | |
4bf21fa4 | 2639 | }; |
42318c32 | 2640 | module_comedi_usb_driver(usbdux_driver, usbdux_usb_driver); |
4bf21fa4 | 2641 | |
3403cc0f HS |
2642 | MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com"); |
2643 | MODULE_DESCRIPTION("Stirling/ITL USB-DUX -- Bernd.Porr@f2s.com"); | |
4bf21fa4 | 2644 | MODULE_LICENSE("GPL"); |
1e1ccc3a | 2645 | MODULE_FIRMWARE(FIRMWARE); |