Commit | Line | Data |
---|---|---|
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 | |
42 | struct driver_interfacekit { | |
43 | int sensors; | |
44 | int inputs; | |
45 | int outputs; | |
46 | int has_lcd; | |
238d0e7b | 47 | int amnesiac; |
1da177e4 | 48 | }; |
238d0e7b SY |
49 | |
50 | #define ifkit(_sensors, _inputs, _outputs, _lcd, _amnesiac) \ | |
51 | { \ | |
1da177e4 LT |
52 | .sensors = _sensors, \ |
53 | .inputs = _inputs, \ | |
54 | .outputs = _outputs, \ | |
55 | .has_lcd = _lcd, \ | |
238d0e7b | 56 | .amnesiac = _amnesiac \ |
1da177e4 | 57 | }; |
238d0e7b SY |
58 | |
59 | static const struct driver_interfacekit ph_004 = ifkit(0, 0, 4, 0, 0); | |
60 | static const struct driver_interfacekit ph_888n = ifkit(8, 8, 8, 0, 1); | |
61 | static const struct driver_interfacekit ph_888o = ifkit(8, 8, 8, 0, 0); | |
62 | static const struct driver_interfacekit ph_047 = ifkit(0, 4, 7, 1, 0); | |
63 | static const struct driver_interfacekit ph_884 = ifkit(8, 8, 4, 0, 0); | |
64 | static const struct driver_interfacekit ph_088 = ifkit(0, 8, 8, 1, 0); | |
65 | static const struct driver_interfacekit ph_01616 = ifkit(0, 16, 16, 0, 0); | |
1da177e4 | 66 | |
912b24c3 SY |
67 | static unsigned long device_no; |
68 | ||
69165c29 | 69 | struct interfacekit { |
1da177e4 LT |
70 | struct usb_device *udev; |
71 | struct usb_interface *intf; | |
72 | struct driver_interfacekit *ifkit; | |
912b24c3 | 73 | struct device *dev; |
69165c29 | 74 | unsigned long outputs; |
912b24c3 | 75 | int dev_no; |
69165c29 SY |
76 | u8 inputs[MAX_INTERFACES]; |
77 | u16 sensors[MAX_INTERFACES]; | |
1da177e4 LT |
78 | u8 lcd_files_on; |
79 | ||
80 | struct urb *irq; | |
81 | unsigned char *data; | |
82 | dma_addr_t data_dma; | |
69165c29 | 83 | |
c4028958 DH |
84 | struct delayed_work do_notify; |
85 | struct delayed_work do_resubmit; | |
69165c29 SY |
86 | unsigned long input_events; |
87 | unsigned long sensor_events; | |
1da177e4 LT |
88 | }; |
89 | ||
90 | static struct usb_device_id id_table[] = { | |
91 | {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT004), | |
92 | .driver_info = (kernel_ulong_t)&ph_004}, | |
238d0e7b SY |
93 | {USB_DEVICE_VER(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT888, 0, 0x814), |
94 | .driver_info = (kernel_ulong_t)&ph_888o}, | |
95 | {USB_DEVICE_VER(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT888, 0x0815, 0xffff), | |
96 | .driver_info = (kernel_ulong_t)&ph_888n}, | |
1da177e4 LT |
97 | {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT047), |
98 | .driver_info = (kernel_ulong_t)&ph_047}, | |
99 | {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT088), | |
100 | .driver_info = (kernel_ulong_t)&ph_088}, | |
69165c29 SY |
101 | {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT01616), |
102 | .driver_info = (kernel_ulong_t)&ph_01616}, | |
1da177e4 LT |
103 | {USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_INTERFACEKIT884), |
104 | .driver_info = (kernel_ulong_t)&ph_884}, | |
105 | {} | |
106 | }; | |
107 | MODULE_DEVICE_TABLE(usb, id_table); | |
108 | ||
238d0e7b | 109 | static int set_outputs(struct interfacekit *kit) |
1da177e4 | 110 | { |
69165c29 | 111 | u8 *buffer; |
1da177e4 | 112 | int retval; |
69165c29 | 113 | |
17590840 | 114 | buffer = kzalloc(4, GFP_KERNEL); |
1da177e4 | 115 | if (!buffer) { |
69165c29 | 116 | dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); |
1da177e4 LT |
117 | return -ENOMEM; |
118 | } | |
69165c29 SY |
119 | buffer[0] = (u8)kit->outputs; |
120 | buffer[1] = (u8)(kit->outputs >> 8); | |
1da177e4 | 121 | |
69165c29 | 122 | dev_dbg(&kit->udev->dev, "sending data: 0x%04x\n", (u16)kit->outputs); |
1da177e4 LT |
123 | |
124 | retval = usb_control_msg(kit->udev, | |
125 | usb_sndctrlpipe(kit->udev, 0), | |
126 | 0x09, 0x21, 0x0200, 0x0000, buffer, 4, 2000); | |
127 | ||
128 | if (retval != 4) | |
129 | dev_err(&kit->udev->dev, "usb_control_msg returned %d\n", | |
130 | retval); | |
131 | kfree(buffer); | |
132 | ||
238d0e7b SY |
133 | if (kit->ifkit->amnesiac) |
134 | schedule_delayed_work(&kit->do_resubmit, HZ / 2); | |
135 | ||
1da177e4 LT |
136 | return retval < 0 ? retval : 0; |
137 | } | |
138 | ||
69165c29 | 139 | static int change_string(struct interfacekit *kit, const char *display, unsigned char row) |
1da177e4 LT |
140 | { |
141 | unsigned char *buffer; | |
69165c29 | 142 | unsigned char *form_buffer; |
1da177e4 LT |
143 | int retval = -ENOMEM; |
144 | int i,j, len, buf_ptr; | |
145 | ||
146 | buffer = kmalloc(8, GFP_KERNEL); | |
147 | form_buffer = kmalloc(30, GFP_KERNEL); | |
148 | if ((!buffer) || (!form_buffer)) { | |
149 | dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); | |
150 | goto exit; | |
151 | } | |
152 | ||
153 | len = strlen(display); | |
154 | if (len > 20) | |
155 | len = 20; | |
156 | ||
157 | dev_dbg(&kit->udev->dev, "Setting LCD line %d to %s\n", row, display); | |
158 | ||
159 | form_buffer[0] = row * 0x40 + 0x80; | |
160 | form_buffer[1] = 0x02; | |
161 | buf_ptr = 2; | |
162 | for (i = 0; i<len; i++) | |
163 | form_buffer[buf_ptr++] = display[i]; | |
164 | ||
165 | for (i = 0; i < (20 - len); i++) | |
166 | form_buffer[buf_ptr++] = 0x20; | |
167 | form_buffer[buf_ptr++] = 0x01; | |
168 | form_buffer[buf_ptr++] = row * 0x40 + 0x80 + strlen(display); | |
169 | ||
170 | for (i = 0; i < buf_ptr; i += 7) { | |
171 | if ((buf_ptr - i) > 7) | |
172 | len = 7; | |
173 | else | |
174 | len = (buf_ptr - i); | |
175 | for (j = 0; j < len; j++) | |
176 | buffer[j] = form_buffer[i + j]; | |
177 | buffer[7] = len; | |
178 | ||
179 | retval = usb_control_msg(kit->udev, | |
180 | usb_sndctrlpipe(kit->udev, 0), | |
181 | 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); | |
182 | if (retval < 0) | |
183 | goto exit; | |
184 | } | |
185 | ||
186 | retval = 0; | |
187 | exit: | |
188 | kfree(buffer); | |
189 | kfree(form_buffer); | |
190 | ||
191 | return retval; | |
192 | } | |
193 | ||
194 | #define set_lcd_line(number) \ | |
912b24c3 SY |
195 | static ssize_t lcd_line_##number(struct device *dev, \ |
196 | struct device_attribute *attr, \ | |
197 | const char *buf, size_t count) \ | |
198 | { \ | |
199 | struct interfacekit *kit = dev_get_drvdata(dev); \ | |
200 | change_string(kit, buf, number - 1); \ | |
201 | return count; \ | |
da308e8d SY |
202 | } |
203 | ||
204 | #define lcd_line_attr(number) \ | |
205 | __ATTR(lcd_line_##number, S_IWUGO, NULL, lcd_line_##number) | |
206 | ||
1da177e4 LT |
207 | set_lcd_line(1); |
208 | set_lcd_line(2); | |
209 | ||
060b8845 | 210 | static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 211 | { |
912b24c3 | 212 | struct interfacekit *kit = dev_get_drvdata(dev); |
1da177e4 LT |
213 | int enabled; |
214 | unsigned char *buffer; | |
215 | int retval = -ENOMEM; | |
216 | ||
17590840 | 217 | buffer = kzalloc(8, GFP_KERNEL); |
1da177e4 LT |
218 | if (!buffer) { |
219 | dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); | |
220 | goto exit; | |
221 | } | |
222 | ||
223 | if (sscanf(buf, "%d", &enabled) < 1) { | |
224 | retval = -EINVAL; | |
225 | goto exit; | |
226 | } | |
1da177e4 LT |
227 | if (enabled) |
228 | buffer[0] = 0x01; | |
229 | buffer[7] = 0x11; | |
230 | ||
231 | dev_dbg(&kit->udev->dev, "Setting backlight to %s\n", enabled ? "on" : "off"); | |
232 | ||
233 | retval = usb_control_msg(kit->udev, | |
234 | usb_sndctrlpipe(kit->udev, 0), | |
235 | 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); | |
236 | if (retval < 0) | |
237 | goto exit; | |
238 | ||
239 | retval = count; | |
240 | exit: | |
241 | kfree(buffer); | |
242 | return retval; | |
243 | } | |
da308e8d SY |
244 | |
245 | static struct device_attribute dev_lcd_line_attrs[] = { | |
246 | lcd_line_attr(1), | |
247 | lcd_line_attr(2), | |
248 | __ATTR(backlight, S_IWUGO, NULL, set_backlight) | |
249 | }; | |
1da177e4 | 250 | |
69165c29 | 251 | static void remove_lcd_files(struct interfacekit *kit) |
1da177e4 | 252 | { |
da308e8d SY |
253 | int i; |
254 | ||
1da177e4 LT |
255 | if (kit->lcd_files_on) { |
256 | dev_dbg(&kit->udev->dev, "Removing lcd files\n"); | |
da308e8d SY |
257 | |
258 | for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) | |
259 | device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); | |
1da177e4 LT |
260 | } |
261 | } | |
262 | ||
060b8845 | 263 | static ssize_t enable_lcd_files(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 264 | { |
912b24c3 | 265 | struct interfacekit *kit = dev_get_drvdata(dev); |
1da177e4 | 266 | int enable; |
da308e8d | 267 | int i, rc; |
1da177e4 LT |
268 | |
269 | if (kit->ifkit->has_lcd == 0) | |
270 | return -ENODEV; | |
271 | ||
272 | if (sscanf(buf, "%d", &enable) < 1) | |
273 | return -EINVAL; | |
274 | ||
275 | if (enable) { | |
276 | if (!kit->lcd_files_on) { | |
277 | dev_dbg(&kit->udev->dev, "Adding lcd files\n"); | |
da308e8d SY |
278 | for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) { |
279 | rc = device_create_file(kit->dev, | |
280 | &dev_lcd_line_attrs[i]); | |
281 | if (rc) | |
282 | goto out; | |
283 | } | |
1da177e4 LT |
284 | kit->lcd_files_on = 1; |
285 | } | |
286 | } else { | |
287 | if (kit->lcd_files_on) { | |
288 | remove_lcd_files(kit); | |
289 | kit->lcd_files_on = 0; | |
290 | } | |
291 | } | |
292 | ||
293 | return count; | |
da308e8d SY |
294 | out: |
295 | while (i-- > 0) | |
296 | device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); | |
297 | ||
298 | return rc; | |
1da177e4 | 299 | } |
da308e8d | 300 | |
1da177e4 LT |
301 | static DEVICE_ATTR(lcd, S_IWUGO, NULL, enable_lcd_files); |
302 | ||
7d12e780 | 303 | static void interfacekit_irq(struct urb *urb) |
1da177e4 | 304 | { |
69165c29 | 305 | struct interfacekit *kit = urb->context; |
1da177e4 | 306 | unsigned char *buffer = kit->data; |
69165c29 | 307 | int i, level, sensor; |
2fe8c3f1 GKH |
308 | int retval; |
309 | int status = urb->status; | |
1da177e4 | 310 | |
2fe8c3f1 | 311 | switch (status) { |
1da177e4 LT |
312 | case 0: /* success */ |
313 | break; | |
314 | case -ECONNRESET: /* unlink */ | |
315 | case -ENOENT: | |
316 | case -ESHUTDOWN: | |
317 | return; | |
318 | /* -EPIPE: should clear the halt */ | |
319 | default: /* error */ | |
320 | goto resubmit; | |
321 | } | |
322 | ||
69165c29 SY |
323 | /* digital inputs */ |
324 | if (kit->ifkit->inputs == 16) { | |
325 | for (i=0; i < 8; i++) { | |
326 | level = (buffer[0] >> i) & 1; | |
327 | if (kit->inputs[i] != level) { | |
328 | kit->inputs[i] = level; | |
329 | set_bit(i, &kit->input_events); | |
330 | } | |
331 | level = (buffer[1] >> i) & 1; | |
332 | if (kit->inputs[8 + i] != level) { | |
333 | kit->inputs[8 + i] = level; | |
334 | set_bit(8 + i, &kit->input_events); | |
335 | } | |
336 | } | |
337 | } | |
338 | else if (kit->ifkit->inputs == 8) { | |
339 | for (i=0; i < 8; i++) { | |
340 | level = (buffer[1] >> i) & 1; | |
341 | if (kit->inputs[i] != level) { | |
342 | kit->inputs[i] = level; | |
343 | set_bit(i, &kit->input_events); | |
344 | } | |
345 | } | |
1da177e4 LT |
346 | } |
347 | ||
69165c29 SY |
348 | /* analog inputs */ |
349 | if (kit->ifkit->sensors) { | |
350 | sensor = (buffer[0] & 1) ? 4 : 0; | |
351 | ||
352 | level = buffer[2] + (buffer[3] & 0x0f) * 256; | |
353 | if (level != kit->sensors[sensor]) { | |
354 | kit->sensors[sensor] = level; | |
355 | set_bit(sensor, &kit->sensor_events); | |
356 | } | |
357 | sensor++; | |
358 | level = buffer[4] + (buffer[3] & 0xf0) * 16; | |
359 | if (level != kit->sensors[sensor]) { | |
360 | kit->sensors[sensor] = level; | |
361 | set_bit(sensor, &kit->sensor_events); | |
362 | } | |
363 | sensor++; | |
364 | level = buffer[5] + (buffer[6] & 0x0f) * 256; | |
365 | if (level != kit->sensors[sensor]) { | |
366 | kit->sensors[sensor] = level; | |
367 | set_bit(sensor, &kit->sensor_events); | |
368 | } | |
369 | sensor++; | |
370 | level = buffer[7] + (buffer[6] & 0xf0) * 16; | |
371 | if (level != kit->sensors[sensor]) { | |
372 | kit->sensors[sensor] = level; | |
373 | set_bit(sensor, &kit->sensor_events); | |
374 | } | |
1da177e4 LT |
375 | } |
376 | ||
69165c29 | 377 | if (kit->input_events || kit->sensor_events) |
c4028958 | 378 | schedule_delayed_work(&kit->do_notify, 0); |
69165c29 | 379 | |
1da177e4 | 380 | resubmit: |
2fe8c3f1 GKH |
381 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
382 | if (retval) | |
383 | err("can't resubmit intr, %s-%s/interfacekit0, retval %d", | |
1da177e4 | 384 | kit->udev->bus->bus_name, |
2fe8c3f1 | 385 | kit->udev->devpath, retval); |
1da177e4 LT |
386 | } |
387 | ||
c4028958 | 388 | static void do_notify(struct work_struct *work) |
69165c29 | 389 | { |
c4028958 DH |
390 | struct interfacekit *kit = |
391 | container_of(work, struct interfacekit, do_notify.work); | |
69165c29 SY |
392 | int i; |
393 | char sysfs_file[8]; | |
394 | ||
395 | for (i=0; i<kit->ifkit->inputs; i++) { | |
396 | if (test_and_clear_bit(i, &kit->input_events)) { | |
397 | sprintf(sysfs_file, "input%d", i + 1); | |
912b24c3 | 398 | sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); |
69165c29 SY |
399 | } |
400 | } | |
401 | ||
402 | for (i=0; i<kit->ifkit->sensors; i++) { | |
403 | if (test_and_clear_bit(i, &kit->sensor_events)) { | |
404 | sprintf(sysfs_file, "sensor%d", i + 1); | |
912b24c3 | 405 | sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); |
69165c29 SY |
406 | } |
407 | } | |
408 | } | |
409 | ||
c4028958 | 410 | static void do_resubmit(struct work_struct *work) |
238d0e7b | 411 | { |
c4028958 DH |
412 | struct interfacekit *kit = |
413 | container_of(work, struct interfacekit, do_resubmit.work); | |
414 | set_outputs(kit); | |
238d0e7b SY |
415 | } |
416 | ||
1da177e4 | 417 | #define show_set_output(value) \ |
912b24c3 SY |
418 | static ssize_t set_output##value(struct device *dev, \ |
419 | struct device_attribute *attr, \ | |
420 | const char *buf, size_t count) \ | |
1da177e4 | 421 | { \ |
912b24c3 | 422 | struct interfacekit *kit = dev_get_drvdata(dev); \ |
238d0e7b | 423 | int enable; \ |
1da177e4 LT |
424 | int retval; \ |
425 | \ | |
238d0e7b | 426 | if (sscanf(buf, "%d", &enable) < 1) \ |
1da177e4 | 427 | return -EINVAL; \ |
1da177e4 | 428 | \ |
238d0e7b SY |
429 | if (enable) \ |
430 | set_bit(value - 1, &kit->outputs); \ | |
431 | else \ | |
432 | clear_bit(value - 1, &kit->outputs); \ | |
433 | \ | |
434 | retval = set_outputs(kit); \ | |
1da177e4 LT |
435 | \ |
436 | return retval ? retval : count; \ | |
437 | } \ | |
438 | \ | |
912b24c3 SY |
439 | static ssize_t show_output##value(struct device *dev, \ |
440 | struct device_attribute *attr, \ | |
441 | char *buf) \ | |
1da177e4 | 442 | { \ |
912b24c3 | 443 | struct interfacekit *kit = dev_get_drvdata(dev); \ |
1da177e4 | 444 | \ |
69165c29 | 445 | return sprintf(buf, "%d\n", !!test_bit(value - 1, &kit->outputs));\ |
da308e8d SY |
446 | } |
447 | ||
448 | #define output_attr(value) \ | |
449 | __ATTR(output##value, S_IWUGO | S_IRUGO, \ | |
450 | show_output##value, set_output##value) | |
451 | ||
1da177e4 LT |
452 | show_set_output(1); |
453 | show_set_output(2); | |
454 | show_set_output(3); | |
455 | show_set_output(4); | |
456 | show_set_output(5); | |
457 | show_set_output(6); | |
458 | show_set_output(7); | |
69165c29 SY |
459 | show_set_output(8); |
460 | show_set_output(9); | |
461 | show_set_output(10); | |
462 | show_set_output(11); | |
463 | show_set_output(12); | |
464 | show_set_output(13); | |
465 | show_set_output(14); | |
466 | show_set_output(15); | |
467 | show_set_output(16); | |
1da177e4 | 468 | |
da308e8d SY |
469 | static struct device_attribute dev_output_attrs[] = { |
470 | output_attr(1), output_attr(2), output_attr(3), output_attr(4), | |
471 | output_attr(5), output_attr(6), output_attr(7), output_attr(8), | |
472 | output_attr(9), output_attr(10), output_attr(11), output_attr(12), | |
473 | output_attr(13), output_attr(14), output_attr(15), output_attr(16) | |
474 | }; | |
475 | ||
1da177e4 | 476 | #define show_input(value) \ |
da308e8d SY |
477 | static ssize_t show_input##value(struct device *dev, \ |
478 | struct device_attribute *attr, char *buf) \ | |
1da177e4 | 479 | { \ |
912b24c3 | 480 | struct interfacekit *kit = dev_get_drvdata(dev); \ |
1da177e4 | 481 | \ |
69165c29 | 482 | return sprintf(buf, "%d\n", (int)kit->inputs[value - 1]); \ |
da308e8d SY |
483 | } |
484 | ||
485 | #define input_attr(value) \ | |
486 | __ATTR(input##value, S_IRUGO, show_input##value, NULL) | |
1da177e4 LT |
487 | |
488 | show_input(1); | |
489 | show_input(2); | |
490 | show_input(3); | |
491 | show_input(4); | |
492 | show_input(5); | |
493 | show_input(6); | |
494 | show_input(7); | |
69165c29 SY |
495 | show_input(8); |
496 | show_input(9); | |
497 | show_input(10); | |
498 | show_input(11); | |
499 | show_input(12); | |
500 | show_input(13); | |
501 | show_input(14); | |
502 | show_input(15); | |
503 | show_input(16); | |
1da177e4 | 504 | |
da308e8d SY |
505 | static struct device_attribute dev_input_attrs[] = { |
506 | input_attr(1), input_attr(2), input_attr(3), input_attr(4), | |
507 | input_attr(5), input_attr(6), input_attr(7), input_attr(8), | |
508 | input_attr(9), input_attr(10), input_attr(11), input_attr(12), | |
509 | input_attr(13), input_attr(14), input_attr(15), input_attr(16) | |
510 | }; | |
511 | ||
1da177e4 | 512 | #define show_sensor(value) \ |
912b24c3 SY |
513 | static ssize_t show_sensor##value(struct device *dev, \ |
514 | struct device_attribute *attr, \ | |
515 | char *buf) \ | |
1da177e4 | 516 | { \ |
912b24c3 | 517 | struct interfacekit *kit = dev_get_drvdata(dev); \ |
1da177e4 | 518 | \ |
69165c29 | 519 | return sprintf(buf, "%d\n", (int)kit->sensors[value - 1]); \ |
da308e8d SY |
520 | } |
521 | ||
522 | #define sensor_attr(value) \ | |
523 | __ATTR(sensor##value, S_IRUGO, show_sensor##value, NULL) | |
1da177e4 LT |
524 | |
525 | show_sensor(1); | |
526 | show_sensor(2); | |
527 | show_sensor(3); | |
528 | show_sensor(4); | |
529 | show_sensor(5); | |
530 | show_sensor(6); | |
531 | show_sensor(7); | |
69165c29 | 532 | show_sensor(8); |
1da177e4 | 533 | |
da308e8d SY |
534 | static struct device_attribute dev_sensor_attrs[] = { |
535 | sensor_attr(1), sensor_attr(2), sensor_attr(3), sensor_attr(4), | |
536 | sensor_attr(5), sensor_attr(6), sensor_attr(7), sensor_attr(8) | |
537 | }; | |
538 | ||
1da177e4 LT |
539 | static int interfacekit_probe(struct usb_interface *intf, const struct usb_device_id *id) |
540 | { | |
541 | struct usb_device *dev = interface_to_usbdev(intf); | |
542 | struct usb_host_interface *interface; | |
543 | struct usb_endpoint_descriptor *endpoint; | |
69165c29 | 544 | struct interfacekit *kit; |
1da177e4 | 545 | struct driver_interfacekit *ifkit; |
69165c29 | 546 | int pipe, maxp, rc = -ENOMEM; |
da308e8d | 547 | int bit, value, i; |
1da177e4 LT |
548 | |
549 | ifkit = (struct driver_interfacekit *)id->driver_info; | |
550 | if (!ifkit) | |
551 | return -ENODEV; | |
552 | ||
553 | interface = intf->cur_altsetting; | |
554 | if (interface->desc.bNumEndpoints != 1) | |
555 | return -ENODEV; | |
556 | ||
557 | endpoint = &interface->endpoint[0].desc; | |
84194049 | 558 | if (!usb_endpoint_dir_in(endpoint)) |
1da177e4 LT |
559 | return -ENODEV; |
560 | /* | |
561 | * bmAttributes | |
562 | */ | |
563 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); | |
564 | maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); | |
565 | ||
17590840 | 566 | kit = kzalloc(sizeof(*kit), GFP_KERNEL); |
69165c29 SY |
567 | if (!kit) |
568 | goto out; | |
1da177e4 | 569 | |
912b24c3 | 570 | kit->dev_no = -1; |
69165c29 | 571 | kit->ifkit = ifkit; |
54e6ecb2 | 572 | kit->data = usb_buffer_alloc(dev, URB_INT_SIZE, GFP_ATOMIC, &kit->data_dma); |
69165c29 SY |
573 | if (!kit->data) |
574 | goto out; | |
1da177e4 LT |
575 | |
576 | kit->irq = usb_alloc_urb(0, GFP_KERNEL); | |
69165c29 SY |
577 | if (!kit->irq) |
578 | goto out; | |
1da177e4 LT |
579 | |
580 | kit->udev = usb_get_dev(dev); | |
581 | kit->intf = intf; | |
c4028958 DH |
582 | INIT_DELAYED_WORK(&kit->do_notify, do_notify); |
583 | INIT_DELAYED_WORK(&kit->do_resubmit, do_resubmit); | |
1da177e4 | 584 | usb_fill_int_urb(kit->irq, kit->udev, pipe, kit->data, |
69165c29 | 585 | maxp > URB_INT_SIZE ? URB_INT_SIZE : maxp, |
1da177e4 LT |
586 | interfacekit_irq, kit, endpoint->bInterval); |
587 | kit->irq->transfer_dma = kit->data_dma; | |
588 | kit->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
589 | ||
590 | usb_set_intfdata(intf, kit); | |
591 | ||
912b24c3 SY |
592 | do { |
593 | bit = find_first_zero_bit(&device_no, sizeof(device_no)); | |
594 | value = test_and_set_bit(bit, &device_no); | |
595 | } while(value); | |
596 | kit->dev_no = bit; | |
597 | ||
598 | kit->dev = device_create(phidget_class, &kit->udev->dev, 0, | |
599 | "interfacekit%d", kit->dev_no); | |
600 | if (IS_ERR(kit->dev)) { | |
601 | rc = PTR_ERR(kit->dev); | |
602 | kit->dev = NULL; | |
603 | goto out; | |
604 | } | |
605 | dev_set_drvdata(kit->dev, kit); | |
606 | ||
1da177e4 | 607 | if (usb_submit_urb(kit->irq, GFP_KERNEL)) { |
69165c29 SY |
608 | rc = -EIO; |
609 | goto out; | |
1da177e4 LT |
610 | } |
611 | ||
da308e8d SY |
612 | for (i=0; i<ifkit->outputs; i++ ) { |
613 | rc = device_create_file(kit->dev, &dev_output_attrs[i]); | |
614 | if (rc) | |
615 | goto out2; | |
69165c29 | 616 | } |
1da177e4 | 617 | |
da308e8d SY |
618 | for (i=0; i<ifkit->inputs; i++ ) { |
619 | rc = device_create_file(kit->dev, &dev_input_attrs[i]); | |
620 | if (rc) | |
621 | goto out3; | |
69165c29 | 622 | } |
1da177e4 | 623 | |
da308e8d SY |
624 | for (i=0; i<ifkit->sensors; i++ ) { |
625 | rc = device_create_file(kit->dev, &dev_sensor_attrs[i]); | |
626 | if (rc) | |
627 | goto out4; | |
1da177e4 | 628 | } |
1da177e4 | 629 | |
da308e8d SY |
630 | if (ifkit->has_lcd) { |
631 | rc = device_create_file(kit->dev, &dev_attr_lcd); | |
632 | if (rc) | |
633 | goto out4; | |
634 | ||
635 | } | |
1da177e4 LT |
636 | |
637 | dev_info(&intf->dev, "USB PhidgetInterfaceKit %d/%d/%d attached\n", | |
638 | ifkit->sensors, ifkit->inputs, ifkit->outputs); | |
639 | ||
640 | return 0; | |
69165c29 | 641 | |
da308e8d SY |
642 | out4: |
643 | while (i-- > 0) | |
644 | device_remove_file(kit->dev, &dev_sensor_attrs[i]); | |
645 | ||
646 | i = ifkit->inputs; | |
647 | out3: | |
648 | while (i-- > 0) | |
649 | device_remove_file(kit->dev, &dev_input_attrs[i]); | |
650 | ||
651 | i = ifkit->outputs; | |
652 | out2: | |
653 | while (i-- > 0) | |
654 | device_remove_file(kit->dev, &dev_output_attrs[i]); | |
69165c29 SY |
655 | out: |
656 | if (kit) { | |
df431214 | 657 | usb_free_urb(kit->irq); |
69165c29 SY |
658 | if (kit->data) |
659 | usb_buffer_free(dev, URB_INT_SIZE, kit->data, kit->data_dma); | |
912b24c3 SY |
660 | if (kit->dev) |
661 | device_unregister(kit->dev); | |
662 | if (kit->dev_no >= 0) | |
663 | clear_bit(kit->dev_no, &device_no); | |
664 | ||
69165c29 SY |
665 | kfree(kit); |
666 | } | |
667 | ||
668 | return rc; | |
1da177e4 LT |
669 | } |
670 | ||
671 | static void interfacekit_disconnect(struct usb_interface *interface) | |
672 | { | |
69165c29 | 673 | struct interfacekit *kit; |
da308e8d | 674 | int i; |
1da177e4 LT |
675 | |
676 | kit = usb_get_intfdata(interface); | |
677 | usb_set_intfdata(interface, NULL); | |
678 | if (!kit) | |
679 | return; | |
680 | ||
69165c29 SY |
681 | usb_kill_urb(kit->irq); |
682 | usb_free_urb(kit->irq); | |
683 | usb_buffer_free(kit->udev, URB_INT_SIZE, kit->data, kit->data_dma); | |
684 | ||
685 | cancel_delayed_work(&kit->do_notify); | |
238d0e7b | 686 | cancel_delayed_work(&kit->do_resubmit); |
69165c29 | 687 | |
da308e8d SY |
688 | for (i=0; i<kit->ifkit->outputs; i++) |
689 | device_remove_file(kit->dev, &dev_output_attrs[i]); | |
1da177e4 | 690 | |
da308e8d SY |
691 | for (i=0; i<kit->ifkit->inputs; i++) |
692 | device_remove_file(kit->dev, &dev_input_attrs[i]); | |
1da177e4 | 693 | |
da308e8d SY |
694 | for (i=0; i<kit->ifkit->sensors; i++) |
695 | device_remove_file(kit->dev, &dev_sensor_attrs[i]); | |
69165c29 | 696 | |
da308e8d | 697 | if (kit->ifkit->has_lcd) { |
912b24c3 | 698 | device_remove_file(kit->dev, &dev_attr_lcd); |
da308e8d SY |
699 | remove_lcd_files(kit); |
700 | } | |
912b24c3 SY |
701 | |
702 | device_unregister(kit->dev); | |
1da177e4 LT |
703 | |
704 | dev_info(&interface->dev, "USB PhidgetInterfaceKit %d/%d/%d detached\n", | |
705 | kit->ifkit->sensors, kit->ifkit->inputs, kit->ifkit->outputs); | |
706 | ||
1da177e4 | 707 | usb_put_dev(kit->udev); |
912b24c3 SY |
708 | clear_bit(kit->dev_no, &device_no); |
709 | ||
1da177e4 LT |
710 | kfree(kit); |
711 | } | |
712 | ||
713 | static struct usb_driver interfacekit_driver = { | |
1da177e4 LT |
714 | .name = "phidgetkit", |
715 | .probe = interfacekit_probe, | |
716 | .disconnect = interfacekit_disconnect, | |
717 | .id_table = id_table | |
718 | }; | |
719 | ||
720 | static int __init interfacekit_init(void) | |
721 | { | |
722 | int retval = 0; | |
723 | ||
724 | retval = usb_register(&interfacekit_driver); | |
725 | if (retval) | |
726 | err("usb_register failed. Error number %d", retval); | |
727 | ||
728 | return retval; | |
729 | } | |
730 | ||
731 | static void __exit interfacekit_exit(void) | |
732 | { | |
733 | usb_deregister(&interfacekit_driver); | |
734 | } | |
735 | ||
736 | module_init(interfacekit_init); | |
737 | module_exit(interfacekit_exit); | |
738 | ||
739 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
740 | MODULE_DESCRIPTION(DRIVER_DESC); | |
741 | MODULE_LICENSE("GPL"); |