Commit | Line | Data |
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34008dbf MD |
1 | /* |
2 | * Support for the Maxtor OneTouch USB hard drive's button | |
3 | * | |
4 | * Current development and maintenance by: | |
5 | * Copyright (c) 2005 Nick Sillik <n.sillik@temple.edu> | |
6 | * | |
7 | * Initial work by: | |
88789672 | 8 | * Copyright (c) 2003 Erik Thyren <erth7411@student.uu.se> |
34008dbf MD |
9 | * |
10 | * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann) | |
11 | * | |
12 | */ | |
13 | ||
14 | /* | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or | |
18 | * (at your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
28 | * | |
29 | */ | |
30 | ||
34008dbf MD |
31 | #include <linux/kernel.h> |
32 | #include <linux/input.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/slab.h> | |
35 | #include <linux/module.h> | |
ae0dadcf | 36 | #include <linux/usb/input.h> |
34008dbf | 37 | #include "usb.h" |
34008dbf MD |
38 | #include "debug.h" |
39 | ||
4246b06a MG |
40 | MODULE_DESCRIPTION("Maxtor USB OneTouch hard drive button driver"); |
41 | MODULE_AUTHOR("Nick Sillik <n.sillik@temple.edu>"); | |
42 | MODULE_LICENSE("GPL"); | |
43 | ||
9cfb95ef AS |
44 | #define ONETOUCH_PKT_LEN 0x02 |
45 | #define ONETOUCH_BUTTON KEY_PROG1 | |
46 | ||
47 | static int onetouch_connect_input(struct us_data *ss); | |
43c1e98c | 48 | static void onetouch_release_input(void *onetouch_); |
34008dbf MD |
49 | |
50 | struct usb_onetouch { | |
51 | char name[128]; | |
52 | char phys[64]; | |
88789672 | 53 | struct input_dev *dev; /* input device interface */ |
34008dbf MD |
54 | struct usb_device *udev; /* usb device */ |
55 | ||
56 | struct urb *irq; /* urb for interrupt in report */ | |
57 | unsigned char *data; /* input data */ | |
58 | dma_addr_t data_dma; | |
7931e1c6 | 59 | unsigned int is_open:1; |
34008dbf MD |
60 | }; |
61 | ||
9cfb95ef AS |
62 | |
63 | /* | |
64 | * The table of devices | |
65 | */ | |
66 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
67 | vendorName, productName, useProtocol, useTransport, \ | |
68 | initFunction, flags) \ | |
69 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 70 | .driver_info = (flags) } |
9cfb95ef | 71 | |
e2c83f01 | 72 | static struct usb_device_id onetouch_usb_ids[] = { |
9cfb95ef AS |
73 | # include "unusual_onetouch.h" |
74 | { } /* Terminating entry */ | |
75 | }; | |
76 | MODULE_DEVICE_TABLE(usb, onetouch_usb_ids); | |
77 | ||
78 | #undef UNUSUAL_DEV | |
79 | ||
80 | /* | |
81 | * The flags table | |
82 | */ | |
83 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
84 | vendor_name, product_name, use_protocol, use_transport, \ | |
85 | init_function, Flags) \ | |
86 | { \ | |
87 | .vendorName = vendor_name, \ | |
88 | .productName = product_name, \ | |
89 | .useProtocol = use_protocol, \ | |
90 | .useTransport = use_transport, \ | |
91 | .initFunction = init_function, \ | |
92 | } | |
93 | ||
94 | static struct us_unusual_dev onetouch_unusual_dev_list[] = { | |
95 | # include "unusual_onetouch.h" | |
96 | { } /* Terminating entry */ | |
97 | }; | |
98 | ||
99 | #undef UNUSUAL_DEV | |
100 | ||
101 | ||
7d12e780 | 102 | static void usb_onetouch_irq(struct urb *urb) |
34008dbf MD |
103 | { |
104 | struct usb_onetouch *onetouch = urb->context; | |
105 | signed char *data = onetouch->data; | |
88789672 | 106 | struct input_dev *dev = onetouch->dev; |
62e5a330 GKH |
107 | int status = urb->status; |
108 | int retval; | |
34008dbf | 109 | |
62e5a330 | 110 | switch (status) { |
34008dbf MD |
111 | case 0: /* success */ |
112 | break; | |
113 | case -ECONNRESET: /* unlink */ | |
114 | case -ENOENT: | |
115 | case -ESHUTDOWN: | |
116 | return; | |
117 | /* -EPIPE: should clear the halt */ | |
118 | default: /* error */ | |
119 | goto resubmit; | |
120 | } | |
121 | ||
88789672 | 122 | input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02); |
34008dbf | 123 | input_sync(dev); |
88789672 | 124 | |
34008dbf | 125 | resubmit: |
62e5a330 GKH |
126 | retval = usb_submit_urb (urb, GFP_ATOMIC); |
127 | if (retval) | |
802f389a GKH |
128 | dev_err(&dev->dev, "can't resubmit intr, %s-%s/input0, " |
129 | "retval %d\n", onetouch->udev->bus->bus_name, | |
62e5a330 | 130 | onetouch->udev->devpath, retval); |
34008dbf MD |
131 | } |
132 | ||
133 | static int usb_onetouch_open(struct input_dev *dev) | |
134 | { | |
09b7002d | 135 | struct usb_onetouch *onetouch = input_get_drvdata(dev); |
34008dbf | 136 | |
7931e1c6 | 137 | onetouch->is_open = 1; |
34008dbf MD |
138 | onetouch->irq->dev = onetouch->udev; |
139 | if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) { | |
802f389a | 140 | dev_err(&dev->dev, "usb_submit_urb failed\n"); |
34008dbf MD |
141 | return -EIO; |
142 | } | |
143 | ||
144 | return 0; | |
145 | } | |
146 | ||
147 | static void usb_onetouch_close(struct input_dev *dev) | |
148 | { | |
09b7002d | 149 | struct usb_onetouch *onetouch = input_get_drvdata(dev); |
34008dbf MD |
150 | |
151 | usb_kill_urb(onetouch->irq); | |
7931e1c6 | 152 | onetouch->is_open = 0; |
34008dbf MD |
153 | } |
154 | ||
7931e1c6 MD |
155 | #ifdef CONFIG_PM |
156 | static void usb_onetouch_pm_hook(struct us_data *us, int action) | |
157 | { | |
158 | struct usb_onetouch *onetouch = (struct usb_onetouch *) us->extra; | |
159 | ||
160 | if (onetouch->is_open) { | |
161 | switch (action) { | |
162 | case US_SUSPEND: | |
163 | usb_kill_urb(onetouch->irq); | |
164 | break; | |
165 | case US_RESUME: | |
e5dc8ae1 | 166 | if (usb_submit_urb(onetouch->irq, GFP_NOIO) != 0) |
802f389a GKH |
167 | dev_err(&onetouch->irq->dev->dev, |
168 | "usb_submit_urb failed\n"); | |
7931e1c6 MD |
169 | break; |
170 | default: | |
171 | break; | |
172 | } | |
173 | } | |
174 | } | |
175 | #endif /* CONFIG_PM */ | |
176 | ||
9cfb95ef | 177 | static int onetouch_connect_input(struct us_data *ss) |
34008dbf MD |
178 | { |
179 | struct usb_device *udev = ss->pusb_dev; | |
180 | struct usb_host_interface *interface; | |
181 | struct usb_endpoint_descriptor *endpoint; | |
182 | struct usb_onetouch *onetouch; | |
88789672 | 183 | struct input_dev *input_dev; |
34008dbf | 184 | int pipe, maxp; |
17efe155 | 185 | int error = -ENOMEM; |
34008dbf MD |
186 | |
187 | interface = ss->pusb_intf->cur_altsetting; | |
188 | ||
d6450e19 NS |
189 | if (interface->desc.bNumEndpoints != 3) |
190 | return -ENODEV; | |
191 | ||
34008dbf | 192 | endpoint = &interface->endpoint[2].desc; |
66722a19 | 193 | if (!usb_endpoint_is_int_in(endpoint)) |
34008dbf MD |
194 | return -ENODEV; |
195 | ||
196 | pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress); | |
197 | maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); | |
bba90aed | 198 | maxp = min(maxp, ONETOUCH_PKT_LEN); |
34008dbf | 199 | |
88789672 DT |
200 | onetouch = kzalloc(sizeof(struct usb_onetouch), GFP_KERNEL); |
201 | input_dev = input_allocate_device(); | |
202 | if (!onetouch || !input_dev) | |
203 | goto fail1; | |
34008dbf | 204 | |
997ea58e DM |
205 | onetouch->data = usb_alloc_coherent(udev, ONETOUCH_PKT_LEN, |
206 | GFP_KERNEL, &onetouch->data_dma); | |
88789672 DT |
207 | if (!onetouch->data) |
208 | goto fail1; | |
34008dbf MD |
209 | |
210 | onetouch->irq = usb_alloc_urb(0, GFP_KERNEL); | |
88789672 DT |
211 | if (!onetouch->irq) |
212 | goto fail2; | |
34008dbf MD |
213 | |
214 | onetouch->udev = udev; | |
88789672 | 215 | onetouch->dev = input_dev; |
34008dbf | 216 | |
88789672 DT |
217 | if (udev->manufacturer) |
218 | strlcpy(onetouch->name, udev->manufacturer, | |
219 | sizeof(onetouch->name)); | |
220 | if (udev->product) { | |
221 | if (udev->manufacturer) | |
222 | strlcat(onetouch->name, " ", sizeof(onetouch->name)); | |
223 | strlcat(onetouch->name, udev->product, sizeof(onetouch->name)); | |
224 | } | |
34008dbf | 225 | |
88789672 DT |
226 | if (!strlen(onetouch->name)) |
227 | snprintf(onetouch->name, sizeof(onetouch->name), | |
228 | "Maxtor Onetouch %04x:%04x", | |
229 | le16_to_cpu(udev->descriptor.idVendor), | |
230 | le16_to_cpu(udev->descriptor.idProduct)); | |
34008dbf | 231 | |
88789672 DT |
232 | usb_make_path(udev, onetouch->phys, sizeof(onetouch->phys)); |
233 | strlcat(onetouch->phys, "/input0", sizeof(onetouch->phys)); | |
34008dbf | 234 | |
88789672 DT |
235 | input_dev->name = onetouch->name; |
236 | input_dev->phys = onetouch->phys; | |
237 | usb_to_input_id(udev, &input_dev->id); | |
09b7002d | 238 | input_dev->dev.parent = &udev->dev; |
34008dbf | 239 | |
88789672 DT |
240 | set_bit(EV_KEY, input_dev->evbit); |
241 | set_bit(ONETOUCH_BUTTON, input_dev->keybit); | |
242 | clear_bit(0, input_dev->keybit); | |
34008dbf | 243 | |
09b7002d DT |
244 | input_set_drvdata(input_dev, onetouch); |
245 | ||
88789672 DT |
246 | input_dev->open = usb_onetouch_open; |
247 | input_dev->close = usb_onetouch_close; | |
34008dbf | 248 | |
bba90aed | 249 | usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data, maxp, |
34008dbf MD |
250 | usb_onetouch_irq, onetouch, endpoint->bInterval); |
251 | onetouch->irq->transfer_dma = onetouch->data_dma; | |
252 | onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
253 | ||
254 | ss->extra_destructor = onetouch_release_input; | |
255 | ss->extra = onetouch; | |
7931e1c6 MD |
256 | #ifdef CONFIG_PM |
257 | ss->suspend_resume_hook = usb_onetouch_pm_hook; | |
258 | #endif | |
34008dbf | 259 | |
17efe155 DT |
260 | error = input_register_device(onetouch->dev); |
261 | if (error) | |
262 | goto fail3; | |
34008dbf MD |
263 | |
264 | return 0; | |
88789672 | 265 | |
17efe155 | 266 | fail3: usb_free_urb(onetouch->irq); |
997ea58e DM |
267 | fail2: usb_free_coherent(udev, ONETOUCH_PKT_LEN, |
268 | onetouch->data, onetouch->data_dma); | |
88789672 DT |
269 | fail1: kfree(onetouch); |
270 | input_free_device(input_dev); | |
17efe155 | 271 | return error; |
34008dbf MD |
272 | } |
273 | ||
43c1e98c | 274 | static void onetouch_release_input(void *onetouch_) |
34008dbf MD |
275 | { |
276 | struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_; | |
277 | ||
278 | if (onetouch) { | |
279 | usb_kill_urb(onetouch->irq); | |
88789672 | 280 | input_unregister_device(onetouch->dev); |
34008dbf | 281 | usb_free_urb(onetouch->irq); |
997ea58e DM |
282 | usb_free_coherent(onetouch->udev, ONETOUCH_PKT_LEN, |
283 | onetouch->data, onetouch->data_dma); | |
34008dbf MD |
284 | } |
285 | } | |
9cfb95ef AS |
286 | |
287 | static int onetouch_probe(struct usb_interface *intf, | |
288 | const struct usb_device_id *id) | |
289 | { | |
290 | struct us_data *us; | |
291 | int result; | |
292 | ||
293 | result = usb_stor_probe1(&us, intf, id, | |
294 | (id - onetouch_usb_ids) + onetouch_unusual_dev_list); | |
295 | if (result) | |
296 | return result; | |
297 | ||
298 | /* Use default transport and protocol */ | |
299 | ||
300 | result = usb_stor_probe2(us); | |
301 | return result; | |
302 | } | |
303 | ||
304 | static struct usb_driver onetouch_driver = { | |
305 | .name = "ums-onetouch", | |
306 | .probe = onetouch_probe, | |
307 | .disconnect = usb_stor_disconnect, | |
308 | .suspend = usb_stor_suspend, | |
309 | .resume = usb_stor_resume, | |
310 | .reset_resume = usb_stor_reset_resume, | |
311 | .pre_reset = usb_stor_pre_reset, | |
312 | .post_reset = usb_stor_post_reset, | |
313 | .id_table = onetouch_usb_ids, | |
314 | .soft_unbind = 1, | |
e73b2db6 | 315 | .no_dynamic_id = 1, |
9cfb95ef AS |
316 | }; |
317 | ||
65db4305 | 318 | module_usb_driver(onetouch_driver); |