projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
USB: Put phidgets driver in a sysfs class
[deliverable/linux.git] / drivers / usb / misc / phidgetkit.c
CommitLineData
1da177e4
LT		 1/*
2 * USB PhidgetInterfaceKit driver 1.0
3 *
69165c29
SY		 4 * Copyright (C) 2004, 2006 Sean Young <sean@mess.org>
5 * Copyright (C) 2005 Daniel Saakes <daniel@saakes.net>
1da177e4
LT		 6 * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This is a driver for the USB PhidgetInterfaceKit.
14 */
15
1da177e4
LT		 16#include <linux/kernel.h>
17#include <linux/errno.h>
18#include <linux/init.h>
19#include <linux/slab.h>
20#include <linux/module.h>
21#include <linux/usb.h>
22
912b24c3
SY		 23#include "phidget.h"
24
1da177e4
LT		 25#define DRIVER_AUTHOR "Sean Young <sean@mess.org>"
26#define DRIVER_DESC "USB PhidgetInterfaceKit Driver"
27
28#define USB_VENDOR_ID_GLAB 0x06c2
29#define USB_DEVICE_ID_INTERFACEKIT004 0x0040
69165c29 30#define USB_DEVICE_ID_INTERFACEKIT01616 0x0044
1da177e4
LT		 31#define USB_DEVICE_ID_INTERFACEKIT888 0x0045
32#define USB_DEVICE_ID_INTERFACEKIT047 0x0051
33#define USB_DEVICE_ID_INTERFACEKIT088 0x0053
34
35#define USB_VENDOR_ID_WISEGROUP 0x0925
36#define USB_DEVICE_ID_INTERFACEKIT884 0x8201
37
69165c29
SY		 38#define MAX_INTERFACES 16
39
40#define URB_INT_SIZE 8
1da177e4
LT		 41
42struct driver_interfacekit {
43 int sensors;
44 int inputs;
45 int outputs;
46 int has_lcd;
47};
48#define ifkit(_sensors, _inputs, _outputs, _lcd) \
49static struct driver_interfacekit ph_##_sensors##_inputs##_outputs = { \
50 .sensors = _sensors, \
51 .inputs = _inputs, \
52 .outputs = _outputs, \
53 .has_lcd = _lcd, \
54};
55ifkit(0, 0, 4, 0);
56ifkit(8, 8, 8, 0);
57ifkit(0, 4, 7, 1);
58ifkit(8, 8, 4, 0);
59ifkit(0, 8, 8, 1);
69165c29 60ifkit(0, 16, 16, 0);
1da177e4 61
912b24c3
SY		 62static unsigned long device_no;
63
69165c29 64struct interfacekit {
1da177e4
LT		 65 struct usb_device *udev;
66 struct usb_interface *intf;
67 struct driver_interfacekit *ifkit;
912b24c3 68 struct device *dev;
69165c29 69 unsigned long outputs;
912b24c3 70 int dev_no;
69165c29
SY		 71 u8 inputs[MAX_INTERFACES];
72 u16 sensors[MAX_INTERFACES];
1da177e4
LT		 73 u8 lcd_files_on;
74
75 struct urb *irq;
76 unsigned char *data;
77 dma_addr_t data_dma;
69165c29
SY		 78
79 struct work_struct do_notify;
80 unsigned long input_events;
81 unsigned long sensor_events;
1da177e4
LT		 82};
83
84static struct usb_device_id id_table[] = {
85 {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT004),
86 .driver_info = (kernel_ulong_t)&ph_004},
87 {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT888),
88 .driver_info = (kernel_ulong_t)&ph_888},
89 {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT047),
90 .driver_info = (kernel_ulong_t)&ph_047},
91 {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT088),
92 .driver_info = (kernel_ulong_t)&ph_088},
69165c29
SY		 93 {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT01616),
94 .driver_info = (kernel_ulong_t)&ph_01616},
1da177e4
LT		 95 {USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_INTERFACEKIT884),
96 .driver_info = (kernel_ulong_t)&ph_884},
97 {}
98};
99MODULE_DEVICE_TABLE(usb, id_table);
100
69165c29 101static int change_outputs(struct interfacekit *kit, int output_num, int enable)
1da177e4 102{
69165c29 103 u8 *buffer;
1da177e4 104 int retval;
69165c29
SY		 105
106 if (enable)
107 set_bit(output_num, &kit->outputs);
108 else
109 clear_bit(output_num, &kit->outputs);
1da177e4 110
17590840 111 buffer = kzalloc(4, GFP_KERNEL);
1da177e4 112 if (!buffer) {
69165c29 113 dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__);
1da177e4
LT		 114 return -ENOMEM;
115 }
69165c29
SY		 116 buffer[0] = (u8)kit->outputs;
117 buffer[1] = (u8)(kit->outputs >> 8);
1da177e4 118
69165c29 119 dev_dbg(&kit->udev->dev, "sending data: 0x%04x\n", (u16)kit->outputs);
1da177e4
LT		 120
121 retval = usb_control_msg(kit->udev,
122 usb_sndctrlpipe(kit->udev, 0),
123 0x09, 0x21, 0x0200, 0x0000, buffer, 4, 2000);
124
125 if (retval != 4)
126 dev_err(&kit->udev->dev, "usb_control_msg returned %d\n",
127 retval);
128 kfree(buffer);
129
130 return retval < 0 ? retval : 0;
131}
132
69165c29 133static int change_string(struct interfacekit *kit, const char *display, unsigned char row)
1da177e4
LT		 134{
135 unsigned char *buffer;
69165c29 136 unsigned char *form_buffer;
1da177e4
LT		 137 int retval = -ENOMEM;
138 int i,j, len, buf_ptr;
139
140 buffer = kmalloc(8, GFP_KERNEL);
141 form_buffer = kmalloc(30, GFP_KERNEL);
142 if ((!buffer) || (!form_buffer)) {
143 dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__);
144 goto exit;
145 }
146
147 len = strlen(display);
148 if (len > 20)
149 len = 20;
150
151 dev_dbg(&kit->udev->dev, "Setting LCD line %d to %s\n", row, display);
152
153 form_buffer[0] = row * 0x40 + 0x80;
154 form_buffer[1] = 0x02;
155 buf_ptr = 2;
156 for (i = 0; i<len; i++)
157 form_buffer[buf_ptr++] = display[i];
158
159 for (i = 0; i < (20 - len); i++)
160 form_buffer[buf_ptr++] = 0x20;
161 form_buffer[buf_ptr++] = 0x01;
162 form_buffer[buf_ptr++] = row * 0x40 + 0x80 + strlen(display);
163
164 for (i = 0; i < buf_ptr; i += 7) {
165 if ((buf_ptr - i) > 7)
166 len = 7;
167 else
168 len = (buf_ptr - i);
169 for (j = 0; j < len; j++)
170 buffer[j] = form_buffer[i + j];
171 buffer[7] = len;
172
173 retval = usb_control_msg(kit->udev,
174 usb_sndctrlpipe(kit->udev, 0),
175 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000);
176 if (retval < 0)
177 goto exit;
178 }
179
180 retval = 0;
181exit:
182 kfree(buffer);
183 kfree(form_buffer);
184
185 return retval;
186}
187
188#define set_lcd_line(number) \
912b24c3
SY		 189static ssize_t lcd_line_##number(struct device *dev, \
190 struct device_attribute *attr, \
191 const char *buf, size_t count) \
192{ \
193 struct interfacekit *kit = dev_get_drvdata(dev); \
194 change_string(kit, buf, number - 1); \
195 return count; \
196} \
1da177e4
LT		 197static DEVICE_ATTR(lcd_line_##number, S_IWUGO, NULL, lcd_line_##number);
198set_lcd_line(1);
199set_lcd_line(2);
200
060b8845 201static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1da177e4 202{
912b24c3 203 struct interfacekit *kit = dev_get_drvdata(dev);
1da177e4
LT		 204 int enabled;
205 unsigned char *buffer;
206 int retval = -ENOMEM;
207
17590840 208 buffer = kzalloc(8, GFP_KERNEL);
1da177e4
LT		 209 if (!buffer) {
210 dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__);
211 goto exit;
212 }
213
214 if (sscanf(buf, "%d", &enabled) < 1) {
215 retval = -EINVAL;
216 goto exit;
217 }
1da177e4
LT		 218 if (enabled)
219 buffer[0] = 0x01;
220 buffer[7] = 0x11;
221
222 dev_dbg(&kit->udev->dev, "Setting backlight to %s\n", enabled ? "on" : "off");
223
224 retval = usb_control_msg(kit->udev,
225 usb_sndctrlpipe(kit->udev, 0),
226 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000);
227 if (retval < 0)
228 goto exit;
229
230 retval = count;
231exit:
232 kfree(buffer);
233 return retval;
234}
235static DEVICE_ATTR(backlight, S_IWUGO, NULL, set_backlight);
236
69165c29 237static void remove_lcd_files(struct interfacekit *kit)
1da177e4
LT		 238{
239 if (kit->lcd_files_on) {
240 dev_dbg(&kit->udev->dev, "Removing lcd files\n");
912b24c3
SY		 241 device_remove_file(kit->dev, &dev_attr_lcd_line_1);
242 device_remove_file(kit->dev, &dev_attr_lcd_line_2);
243 device_remove_file(kit->dev, &dev_attr_backlight);
1da177e4
LT		 244 }
245}
246
060b8845 247static ssize_t enable_lcd_files(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1da177e4 248{
912b24c3 249 struct interfacekit *kit = dev_get_drvdata(dev);
1da177e4
LT		 250 int enable;
251
252 if (kit->ifkit->has_lcd == 0)
253 return -ENODEV;
254
255 if (sscanf(buf, "%d", &enable) < 1)
256 return -EINVAL;
257
258 if (enable) {
259 if (!kit->lcd_files_on) {
260 dev_dbg(&kit->udev->dev, "Adding lcd files\n");
912b24c3
SY		 261 device_create_file(kit->dev, &dev_attr_lcd_line_1);
262 device_create_file(kit->dev, &dev_attr_lcd_line_2);
263 device_create_file(kit->dev, &dev_attr_backlight);
1da177e4
LT		 264 kit->lcd_files_on = 1;
265 }
266 } else {
267 if (kit->lcd_files_on) {
268 remove_lcd_files(kit);
269 kit->lcd_files_on = 0;
270 }
271 }
272
273 return count;
274}
275static DEVICE_ATTR(lcd, S_IWUGO, NULL, enable_lcd_files);
276
277static void interfacekit_irq(struct urb *urb, struct pt_regs *regs)
278{
69165c29 279 struct interfacekit *kit = urb->context;
1da177e4 280 unsigned char *buffer = kit->data;
69165c29 281 int i, level, sensor;
1da177e4 282 int status;
1da177e4
LT		 283
284 switch (urb->status) {
285 case 0: /* success */
286 break;
287 case -ECONNRESET: /* unlink */
288 case -ENOENT:
289 case -ESHUTDOWN:
290 return;
291 /* -EPIPE: should clear the halt */
292 default: /* error */
293 goto resubmit;
294 }
295
69165c29
SY		 296 /* digital inputs */
297 if (kit->ifkit->inputs == 16) {
298 for (i=0; i < 8; i++) {
299 level = (buffer[0] >> i) & 1;
300 if (kit->inputs[i] != level) {
301 kit->inputs[i] = level;
302 set_bit(i, &kit->input_events);
303 }
304 level = (buffer[1] >> i) & 1;
305 if (kit->inputs[8 + i] != level) {
306 kit->inputs[8 + i] = level;
307 set_bit(8 + i, &kit->input_events);
308 }
309 }
310 }
311 else if (kit->ifkit->inputs == 8) {
312 for (i=0; i < 8; i++) {
313 level = (buffer[1] >> i) & 1;
314 if (kit->inputs[i] != level) {
315 kit->inputs[i] = level;
316 set_bit(i, &kit->input_events);
317 }
318 }
1da177e4
LT		 319 }
320
69165c29
SY		 321 /* analog inputs */
322 if (kit->ifkit->sensors) {
323 sensor = (buffer[0] & 1) ? 4 : 0;
324
325 level = buffer[2] + (buffer[3] & 0x0f) * 256;
326 if (level != kit->sensors[sensor]) {
327 kit->sensors[sensor] = level;
328 set_bit(sensor, &kit->sensor_events);
329 }
330 sensor++;
331 level = buffer[4] + (buffer[3] & 0xf0) * 16;
332 if (level != kit->sensors[sensor]) {
333 kit->sensors[sensor] = level;
334 set_bit(sensor, &kit->sensor_events);
335 }
336 sensor++;
337 level = buffer[5] + (buffer[6] & 0x0f) * 256;
338 if (level != kit->sensors[sensor]) {
339 kit->sensors[sensor] = level;
340 set_bit(sensor, &kit->sensor_events);
341 }
342 sensor++;
343 level = buffer[7] + (buffer[6] & 0xf0) * 16;
344 if (level != kit->sensors[sensor]) {
345 kit->sensors[sensor] = level;
346 set_bit(sensor, &kit->sensor_events);
347 }
1da177e4
LT		 348 }
349
69165c29
SY		 350 if (kit->input_events || kit->sensor_events)
351 schedule_work(&kit->do_notify);
352
1da177e4
LT		 353resubmit:
354 status = usb_submit_urb(urb, SLAB_ATOMIC);
355 if (status)
356 err("can't resubmit intr, %s-%s/interfacekit0, status %d",
357 kit->udev->bus->bus_name,
358 kit->udev->devpath, status);
359}
360
69165c29
SY		 361static void do_notify(void *data)
362{
363 struct interfacekit *kit = data;
364 int i;
365 char sysfs_file[8];
366
367 for (i=0; i<kit->ifkit->inputs; i++) {
368 if (test_and_clear_bit(i, &kit->input_events)) {
369 sprintf(sysfs_file, "input%d", i + 1);
912b24c3 370 sysfs_notify(&kit->dev->kobj, NULL, sysfs_file);
69165c29
SY		 371 }
372 }
373
374 for (i=0; i<kit->ifkit->sensors; i++) {
375 if (test_and_clear_bit(i, &kit->sensor_events)) {
376 sprintf(sysfs_file, "sensor%d", i + 1);
912b24c3 377 sysfs_notify(&kit->dev->kobj, NULL, sysfs_file);
69165c29
SY		 378 }
379 }
380}
381
1da177e4 382#define show_set_output(value) \
912b24c3
SY		 383static ssize_t set_output##value(struct device *dev, \
384 struct device_attribute *attr, \
385 const char *buf, size_t count) \
1da177e4 386{ \
912b24c3 387 struct interfacekit *kit = dev_get_drvdata(dev); \
1da177e4
LT		 388 int enabled; \
389 int retval; \
390 \
69165c29 391 if (sscanf(buf, "%d", &enabled) < 1) \
1da177e4 392 return -EINVAL; \
1da177e4 393 \
69165c29 394 retval = change_outputs(kit, value - 1, enabled); \
1da177e4
LT		 395 \
396 return retval ? retval : count; \
397} \
398 \
912b24c3
SY		 399static ssize_t show_output##value(struct device *dev, \
400 struct device_attribute *attr, \
401 char *buf) \
1da177e4 402{ \
912b24c3 403 struct interfacekit *kit = dev_get_drvdata(dev); \
1da177e4 404 \
69165c29 405 return sprintf(buf, "%d\n", !!test_bit(value - 1, &kit->outputs));\
1da177e4
LT		 406} \
407static DEVICE_ATTR(output##value, S_IWUGO | S_IRUGO, \
408 show_output##value, set_output##value);
409show_set_output(1);
410show_set_output(2);
411show_set_output(3);
412show_set_output(4);
413show_set_output(5);
414show_set_output(6);
415show_set_output(7);
69165c29
SY		 416show_set_output(8);
417show_set_output(9);
418show_set_output(10);
419show_set_output(11);
420show_set_output(12);
421show_set_output(13);
422show_set_output(14);
423show_set_output(15);
424show_set_output(16);
1da177e4
LT		 425
426#define show_input(value) \
060b8845 427static ssize_t show_input##value(struct device *dev, struct device_attribute *attr, char *buf) \
1da177e4 428{ \
912b24c3 429 struct interfacekit *kit = dev_get_drvdata(dev); \
1da177e4 430 \
69165c29 431 return sprintf(buf, "%d\n", (int)kit->inputs[value - 1]); \
1da177e4
LT		 432} \
433static DEVICE_ATTR(input##value, S_IRUGO, show_input##value, NULL);
434
435show_input(1);
436show_input(2);
437show_input(3);
438show_input(4);
439show_input(5);
440show_input(6);
441show_input(7);
69165c29
SY		 442show_input(8);
443show_input(9);
444show_input(10);
445show_input(11);
446show_input(12);
447show_input(13);
448show_input(14);
449show_input(15);
450show_input(16);
1da177e4
LT		 451
452#define show_sensor(value) \
912b24c3
SY		 453static ssize_t show_sensor##value(struct device *dev, \
454 struct device_attribute *attr, \
455 char *buf) \
1da177e4 456{ \
912b24c3 457 struct interfacekit *kit = dev_get_drvdata(dev); \
1da177e4 458 \
69165c29 459 return sprintf(buf, "%d\n", (int)kit->sensors[value - 1]); \
1da177e4
LT		 460} \
461static DEVICE_ATTR(sensor##value, S_IRUGO, show_sensor##value, NULL);
462
463show_sensor(1);
464show_sensor(2);
465show_sensor(3);
466show_sensor(4);
467show_sensor(5);
468show_sensor(6);
469show_sensor(7);
69165c29 470show_sensor(8);
1da177e4
LT		 471
472static int interfacekit_probe(struct usb_interface *intf, const struct usb_device_id *id)
473{
474 struct usb_device *dev = interface_to_usbdev(intf);
475 struct usb_host_interface *interface;
476 struct usb_endpoint_descriptor *endpoint;
69165c29 477 struct interfacekit *kit;
1da177e4 478 struct driver_interfacekit *ifkit;
69165c29 479 int pipe, maxp, rc = -ENOMEM;
912b24c3 480 int bit, value;
1da177e4
LT		 481
482 ifkit = (struct driver_interfacekit *)id->driver_info;
483 if (!ifkit)
484 return -ENODEV;
485
486 interface = intf->cur_altsetting;
487 if (interface->desc.bNumEndpoints != 1)
488 return -ENODEV;
489
490 endpoint = &interface->endpoint[0].desc;
491 if (!(endpoint->bEndpointAddress & 0x80))
492 return -ENODEV;
493 /*
494 * bmAttributes
495 */
496 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
497 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
498
17590840 499 kit = kzalloc(sizeof(*kit), GFP_KERNEL);
69165c29
SY		 500 if (!kit)
501 goto out;
1da177e4 502
912b24c3 503 kit->dev_no = -1;
69165c29
SY		 504 kit->ifkit = ifkit;
505 kit->data = usb_buffer_alloc(dev, URB_INT_SIZE, SLAB_ATOMIC, &kit->data_dma);
506 if (!kit->data)
507 goto out;
1da177e4
LT		 508
509 kit->irq = usb_alloc_urb(0, GFP_KERNEL);
69165c29
SY		 510 if (!kit->irq)
511 goto out;
1da177e4
LT		 512
513 kit->udev = usb_get_dev(dev);
514 kit->intf = intf;
69165c29 515 INIT_WORK(&kit->do_notify, do_notify, kit);
1da177e4 516 usb_fill_int_urb(kit->irq, kit->udev, pipe, kit->data,
69165c29 517 maxp > URB_INT_SIZE ? URB_INT_SIZE : maxp,
1da177e4
LT		 518 interfacekit_irq, kit, endpoint->bInterval);
519 kit->irq->transfer_dma = kit->data_dma;
520 kit->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
521
522 usb_set_intfdata(intf, kit);
523
912b24c3
SY		 524 do {
525 bit = find_first_zero_bit(&device_no, sizeof(device_no));
526 value = test_and_set_bit(bit, &device_no);
527 } while(value);
528 kit->dev_no = bit;
529
530 kit->dev = device_create(phidget_class, &kit->udev->dev, 0,
531 "interfacekit%d", kit->dev_no);
532 if (IS_ERR(kit->dev)) {
533 rc = PTR_ERR(kit->dev);
534 kit->dev = NULL;
535 goto out;
536 }
537 dev_set_drvdata(kit->dev, kit);
538
1da177e4 539 if (usb_submit_urb(kit->irq, GFP_KERNEL)) {
69165c29
SY		 540 rc = -EIO;
541 goto out;
1da177e4
LT		 542 }
543
544 if (ifkit->outputs >= 4) {
912b24c3
SY		 545 device_create_file(kit->dev, &dev_attr_output1);
546 device_create_file(kit->dev, &dev_attr_output2);
547 device_create_file(kit->dev, &dev_attr_output3);
548 device_create_file(kit->dev, &dev_attr_output4);
1da177e4 549 }
69165c29 550 if (ifkit->outputs >= 8) {
912b24c3
SY		 551 device_create_file(kit->dev, &dev_attr_output5);
552 device_create_file(kit->dev, &dev_attr_output6);
553 device_create_file(kit->dev, &dev_attr_output7);
554 device_create_file(kit->dev, &dev_attr_output8);
1da177e4 555 }
69165c29 556 if (ifkit->outputs == 16) {
912b24c3
SY		 557 device_create_file(kit->dev, &dev_attr_output9);
558 device_create_file(kit->dev, &dev_attr_output10);
559 device_create_file(kit->dev, &dev_attr_output11);
560 device_create_file(kit->dev, &dev_attr_output12);
561 device_create_file(kit->dev, &dev_attr_output13);
562 device_create_file(kit->dev, &dev_attr_output14);
563 device_create_file(kit->dev, &dev_attr_output15);
564 device_create_file(kit->dev, &dev_attr_output16);
69165c29 565 }
1da177e4
LT		 566
567 if (ifkit->inputs >= 4) {
912b24c3
SY		 568 device_create_file(kit->dev, &dev_attr_input1);
569 device_create_file(kit->dev, &dev_attr_input2);
570 device_create_file(kit->dev, &dev_attr_input3);
571 device_create_file(kit->dev, &dev_attr_input4);
1da177e4 572 }
69165c29 573 if (ifkit->inputs >= 8) {
912b24c3
SY		 574 device_create_file(kit->dev, &dev_attr_input5);
575 device_create_file(kit->dev, &dev_attr_input6);
576 device_create_file(kit->dev, &dev_attr_input7);
577 device_create_file(kit->dev, &dev_attr_input8);
1da177e4 578 }
69165c29 579 if (ifkit->inputs == 16) {
912b24c3
SY		 580 device_create_file(kit->dev, &dev_attr_input9);
581 device_create_file(kit->dev, &dev_attr_input10);
582 device_create_file(kit->dev, &dev_attr_input11);
583 device_create_file(kit->dev, &dev_attr_input12);
584 device_create_file(kit->dev, &dev_attr_input13);
585 device_create_file(kit->dev, &dev_attr_input14);
586 device_create_file(kit->dev, &dev_attr_input15);
587 device_create_file(kit->dev, &dev_attr_input16);
69165c29 588 }
1da177e4
LT		 589
590 if (ifkit->sensors >= 4) {
912b24c3
SY		 591 device_create_file(kit->dev, &dev_attr_sensor1);
592 device_create_file(kit->dev, &dev_attr_sensor2);
593 device_create_file(kit->dev, &dev_attr_sensor3);
594 device_create_file(kit->dev, &dev_attr_sensor4);
1da177e4
LT		 595 }
596 if (ifkit->sensors >= 7) {
912b24c3
SY		 597 device_create_file(kit->dev, &dev_attr_sensor5);
598 device_create_file(kit->dev, &dev_attr_sensor6);
599 device_create_file(kit->dev, &dev_attr_sensor7);
1da177e4 600 }
69165c29 601 if (ifkit->sensors == 8)
912b24c3 602 device_create_file(kit->dev, &dev_attr_sensor8);
1da177e4
LT		 603
604 if (ifkit->has_lcd)
912b24c3 605 device_create_file(kit->dev, &dev_attr_lcd);
1da177e4
LT		 606
607 dev_info(&intf->dev, "USB PhidgetInterfaceKit %d/%d/%d attached\n",
608 ifkit->sensors, ifkit->inputs, ifkit->outputs);
609
610 return 0;
69165c29
SY		 611
612out:
613 if (kit) {
614 if (kit->irq)
615 usb_free_urb(kit->irq);
616 if (kit->data)
617 usb_buffer_free(dev, URB_INT_SIZE, kit->data, kit->data_dma);
912b24c3
SY		 618 if (kit->dev)
619 device_unregister(kit->dev);
620 if (kit->dev_no >= 0)
621 clear_bit(kit->dev_no, &device_no);
622
69165c29
SY		 623 kfree(kit);
624 }
625
626 return rc;
1da177e4
LT		 627}
628
629static void interfacekit_disconnect(struct usb_interface *interface)
630{
69165c29 631 struct interfacekit *kit;
1da177e4
LT		 632
633 kit = usb_get_intfdata(interface);
634 usb_set_intfdata(interface, NULL);
635 if (!kit)
636 return;
637
69165c29
SY		 638 usb_kill_urb(kit->irq);
639 usb_free_urb(kit->irq);
640 usb_buffer_free(kit->udev, URB_INT_SIZE, kit->data, kit->data_dma);
641
642 cancel_delayed_work(&kit->do_notify);
643
1da177e4 644 if (kit->ifkit->outputs >= 4) {
912b24c3
SY		 645 device_remove_file(kit->dev, &dev_attr_output1);
646 device_remove_file(kit->dev, &dev_attr_output2);
647 device_remove_file(kit->dev, &dev_attr_output3);
648 device_remove_file(kit->dev, &dev_attr_output4);
1da177e4 649 }
69165c29 650 if (kit->ifkit->outputs >= 8) {
912b24c3
SY		 651 device_remove_file(kit->dev, &dev_attr_output5);
652 device_remove_file(kit->dev, &dev_attr_output6);
653 device_remove_file(kit->dev, &dev_attr_output7);
654 device_remove_file(kit->dev, &dev_attr_output8);
1da177e4 655 }
69165c29 656 if (kit->ifkit->outputs == 16) {
912b24c3
SY		 657 device_remove_file(kit->dev, &dev_attr_output9);
658 device_remove_file(kit->dev, &dev_attr_output10);
659 device_remove_file(kit->dev, &dev_attr_output11);
660 device_remove_file(kit->dev, &dev_attr_output12);
661 device_remove_file(kit->dev, &dev_attr_output13);
662 device_remove_file(kit->dev, &dev_attr_output14);
663 device_remove_file(kit->dev, &dev_attr_output15);
664 device_remove_file(kit->dev, &dev_attr_output16);
69165c29 665 }
1da177e4
LT		 666
667 if (kit->ifkit->inputs >= 4) {
912b24c3
SY		 668 device_remove_file(kit->dev, &dev_attr_input1);
669 device_remove_file(kit->dev, &dev_attr_input2);
670 device_remove_file(kit->dev, &dev_attr_input3);
671 device_remove_file(kit->dev, &dev_attr_input4);
1da177e4 672 }
69165c29 673 if (kit->ifkit->inputs >= 8) {
912b24c3
SY		 674 device_remove_file(kit->dev, &dev_attr_input5);
675 device_remove_file(kit->dev, &dev_attr_input6);
676 device_remove_file(kit->dev, &dev_attr_input7);
677 device_remove_file(kit->dev, &dev_attr_input8);
1da177e4 678 }
69165c29 679 if (kit->ifkit->inputs == 16) {
912b24c3
SY		 680 device_remove_file(kit->dev, &dev_attr_input9);
681 device_remove_file(kit->dev, &dev_attr_input10);
682 device_remove_file(kit->dev, &dev_attr_input11);
683 device_remove_file(kit->dev, &dev_attr_input12);
684 device_remove_file(kit->dev, &dev_attr_input13);
685 device_remove_file(kit->dev, &dev_attr_input14);
686 device_remove_file(kit->dev, &dev_attr_input15);
687 device_remove_file(kit->dev, &dev_attr_input16);
69165c29 688 }
1da177e4
LT		 689
690 if (kit->ifkit->sensors >= 4) {
912b24c3
SY		 691 device_remove_file(kit->dev, &dev_attr_sensor1);
692 device_remove_file(kit->dev, &dev_attr_sensor2);
693 device_remove_file(kit->dev, &dev_attr_sensor3);
694 device_remove_file(kit->dev, &dev_attr_sensor4);
1da177e4
LT		 695 }
696 if (kit->ifkit->sensors >= 7) {
912b24c3
SY		 697 device_remove_file(kit->dev, &dev_attr_sensor5);
698 device_remove_file(kit->dev, &dev_attr_sensor6);
699 device_remove_file(kit->dev, &dev_attr_sensor7);
1da177e4 700 }
69165c29 701 if (kit->ifkit->sensors == 8)
912b24c3 702 device_remove_file(kit->dev, &dev_attr_sensor8);
69165c29 703
1da177e4 704 if (kit->ifkit->has_lcd)
912b24c3
SY		 705 device_remove_file(kit->dev, &dev_attr_lcd);
706
707 device_unregister(kit->dev);
1da177e4
LT		 708
709 dev_info(&interface->dev, "USB PhidgetInterfaceKit %d/%d/%d detached\n",
710 kit->ifkit->sensors, kit->ifkit->inputs, kit->ifkit->outputs);
711
1da177e4 712 usb_put_dev(kit->udev);
912b24c3
SY		 713 clear_bit(kit->dev_no, &device_no);
714
1da177e4
LT		 715 kfree(kit);
716}
717
718static struct usb_driver interfacekit_driver = {
1da177e4
LT		 719 .name = "phidgetkit",
720 .probe = interfacekit_probe,
721 .disconnect = interfacekit_disconnect,
722 .id_table = id_table
723};
724
725static int __init interfacekit_init(void)
726{
727 int retval = 0;
728
729 retval = usb_register(&interfacekit_driver);
730 if (retval)
731 err("usb_register failed. Error number %d", retval);
732
733 return retval;
734}
735
736static void __exit interfacekit_exit(void)
737{
738 usb_deregister(&interfacekit_driver);
739}
740
741module_init(interfacekit_init);
742module_exit(interfacekit_exit);
743
744MODULE_AUTHOR(DRIVER_AUTHOR);
745MODULE_DESCRIPTION(DRIVER_DESC);
746MODULE_LICENSE("GPL");
Linux kernel - Deliverables
This page took 0.213783 seconds and 5 git commands to generate.