Merge remote-tracking branch 'ipmi/for-next'
[deliverable/linux.git] / drivers / usb / storage / onetouch.c
CommitLineData
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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>
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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
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31#include <linux/kernel.h>
32#include <linux/input.h>
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33#include <linux/slab.h>
34#include <linux/module.h>
ae0dadcf 35#include <linux/usb/input.h>
34008dbf 36#include "usb.h"
34008dbf 37#include "debug.h"
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38#include "scsiglue.h"
39
40#define DRV_NAME "ums-onetouch"
34008dbf 41
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42MODULE_DESCRIPTION("Maxtor USB OneTouch hard drive button driver");
43MODULE_AUTHOR("Nick Sillik <n.sillik@temple.edu>");
44MODULE_LICENSE("GPL");
45
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46#define ONETOUCH_PKT_LEN 0x02
47#define ONETOUCH_BUTTON KEY_PROG1
48
49static int onetouch_connect_input(struct us_data *ss);
43c1e98c 50static void onetouch_release_input(void *onetouch_);
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51
52struct usb_onetouch {
53 char name[128];
54 char phys[64];
88789672 55 struct input_dev *dev; /* input device interface */
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56 struct usb_device *udev; /* usb device */
57
58 struct urb *irq; /* urb for interrupt in report */
59 unsigned char *data; /* input data */
60 dma_addr_t data_dma;
7931e1c6 61 unsigned int is_open:1;
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62};
63
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64
65/*
66 * The table of devices
67 */
68#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
69 vendorName, productName, useProtocol, useTransport, \
70 initFunction, flags) \
71{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
f61870ee 72 .driver_info = (flags) }
9cfb95ef 73
e2c83f01 74static struct usb_device_id onetouch_usb_ids[] = {
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75# include "unusual_onetouch.h"
76 { } /* Terminating entry */
77};
78MODULE_DEVICE_TABLE(usb, onetouch_usb_ids);
79
80#undef UNUSUAL_DEV
81
82/*
83 * The flags table
84 */
85#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
86 vendor_name, product_name, use_protocol, use_transport, \
87 init_function, Flags) \
88{ \
89 .vendorName = vendor_name, \
90 .productName = product_name, \
91 .useProtocol = use_protocol, \
92 .useTransport = use_transport, \
93 .initFunction = init_function, \
94}
95
96static struct us_unusual_dev onetouch_unusual_dev_list[] = {
97# include "unusual_onetouch.h"
98 { } /* Terminating entry */
99};
100
101#undef UNUSUAL_DEV
102
103
7d12e780 104static void usb_onetouch_irq(struct urb *urb)
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105{
106 struct usb_onetouch *onetouch = urb->context;
107 signed char *data = onetouch->data;
88789672 108 struct input_dev *dev = onetouch->dev;
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109 int status = urb->status;
110 int retval;
34008dbf 111
62e5a330 112 switch (status) {
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113 case 0: /* success */
114 break;
115 case -ECONNRESET: /* unlink */
116 case -ENOENT:
117 case -ESHUTDOWN:
118 return;
119 /* -EPIPE: should clear the halt */
120 default: /* error */
121 goto resubmit;
122 }
123
88789672 124 input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02);
34008dbf 125 input_sync(dev);
88789672 126
34008dbf 127resubmit:
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128 retval = usb_submit_urb (urb, GFP_ATOMIC);
129 if (retval)
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130 dev_err(&dev->dev, "can't resubmit intr, %s-%s/input0, "
131 "retval %d\n", onetouch->udev->bus->bus_name,
62e5a330 132 onetouch->udev->devpath, retval);
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133}
134
135static int usb_onetouch_open(struct input_dev *dev)
136{
09b7002d 137 struct usb_onetouch *onetouch = input_get_drvdata(dev);
34008dbf 138
7931e1c6 139 onetouch->is_open = 1;
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140 onetouch->irq->dev = onetouch->udev;
141 if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
802f389a 142 dev_err(&dev->dev, "usb_submit_urb failed\n");
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143 return -EIO;
144 }
145
146 return 0;
147}
148
149static void usb_onetouch_close(struct input_dev *dev)
150{
09b7002d 151 struct usb_onetouch *onetouch = input_get_drvdata(dev);
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152
153 usb_kill_urb(onetouch->irq);
7931e1c6 154 onetouch->is_open = 0;
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155}
156
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157#ifdef CONFIG_PM
158static void usb_onetouch_pm_hook(struct us_data *us, int action)
159{
160 struct usb_onetouch *onetouch = (struct usb_onetouch *) us->extra;
161
162 if (onetouch->is_open) {
163 switch (action) {
164 case US_SUSPEND:
165 usb_kill_urb(onetouch->irq);
166 break;
167 case US_RESUME:
e5dc8ae1 168 if (usb_submit_urb(onetouch->irq, GFP_NOIO) != 0)
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169 dev_err(&onetouch->irq->dev->dev,
170 "usb_submit_urb failed\n");
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171 break;
172 default:
173 break;
174 }
175 }
176}
177#endif /* CONFIG_PM */
178
9cfb95ef 179static int onetouch_connect_input(struct us_data *ss)
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180{
181 struct usb_device *udev = ss->pusb_dev;
182 struct usb_host_interface *interface;
183 struct usb_endpoint_descriptor *endpoint;
184 struct usb_onetouch *onetouch;
88789672 185 struct input_dev *input_dev;
34008dbf 186 int pipe, maxp;
17efe155 187 int error = -ENOMEM;
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188
189 interface = ss->pusb_intf->cur_altsetting;
190
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191 if (interface->desc.bNumEndpoints != 3)
192 return -ENODEV;
193
34008dbf 194 endpoint = &interface->endpoint[2].desc;
66722a19 195 if (!usb_endpoint_is_int_in(endpoint))
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196 return -ENODEV;
197
198 pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
199 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
bba90aed 200 maxp = min(maxp, ONETOUCH_PKT_LEN);
34008dbf 201
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202 onetouch = kzalloc(sizeof(struct usb_onetouch), GFP_KERNEL);
203 input_dev = input_allocate_device();
204 if (!onetouch || !input_dev)
205 goto fail1;
34008dbf 206
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207 onetouch->data = usb_alloc_coherent(udev, ONETOUCH_PKT_LEN,
208 GFP_KERNEL, &onetouch->data_dma);
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209 if (!onetouch->data)
210 goto fail1;
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211
212 onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);
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213 if (!onetouch->irq)
214 goto fail2;
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215
216 onetouch->udev = udev;
88789672 217 onetouch->dev = input_dev;
34008dbf 218
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219 if (udev->manufacturer)
220 strlcpy(onetouch->name, udev->manufacturer,
221 sizeof(onetouch->name));
222 if (udev->product) {
223 if (udev->manufacturer)
224 strlcat(onetouch->name, " ", sizeof(onetouch->name));
225 strlcat(onetouch->name, udev->product, sizeof(onetouch->name));
226 }
34008dbf 227
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228 if (!strlen(onetouch->name))
229 snprintf(onetouch->name, sizeof(onetouch->name),
230 "Maxtor Onetouch %04x:%04x",
231 le16_to_cpu(udev->descriptor.idVendor),
232 le16_to_cpu(udev->descriptor.idProduct));
34008dbf 233
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234 usb_make_path(udev, onetouch->phys, sizeof(onetouch->phys));
235 strlcat(onetouch->phys, "/input0", sizeof(onetouch->phys));
34008dbf 236
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237 input_dev->name = onetouch->name;
238 input_dev->phys = onetouch->phys;
239 usb_to_input_id(udev, &input_dev->id);
09b7002d 240 input_dev->dev.parent = &udev->dev;
34008dbf 241
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242 set_bit(EV_KEY, input_dev->evbit);
243 set_bit(ONETOUCH_BUTTON, input_dev->keybit);
244 clear_bit(0, input_dev->keybit);
34008dbf 245
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246 input_set_drvdata(input_dev, onetouch);
247
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248 input_dev->open = usb_onetouch_open;
249 input_dev->close = usb_onetouch_close;
34008dbf 250
bba90aed 251 usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data, maxp,
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252 usb_onetouch_irq, onetouch, endpoint->bInterval);
253 onetouch->irq->transfer_dma = onetouch->data_dma;
254 onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
255
256 ss->extra_destructor = onetouch_release_input;
257 ss->extra = onetouch;
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258#ifdef CONFIG_PM
259 ss->suspend_resume_hook = usb_onetouch_pm_hook;
260#endif
34008dbf 261
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262 error = input_register_device(onetouch->dev);
263 if (error)
264 goto fail3;
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265
266 return 0;
88789672 267
17efe155 268 fail3: usb_free_urb(onetouch->irq);
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269 fail2: usb_free_coherent(udev, ONETOUCH_PKT_LEN,
270 onetouch->data, onetouch->data_dma);
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271 fail1: kfree(onetouch);
272 input_free_device(input_dev);
17efe155 273 return error;
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274}
275
43c1e98c 276static void onetouch_release_input(void *onetouch_)
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277{
278 struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_;
279
280 if (onetouch) {
281 usb_kill_urb(onetouch->irq);
88789672 282 input_unregister_device(onetouch->dev);
34008dbf 283 usb_free_urb(onetouch->irq);
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284 usb_free_coherent(onetouch->udev, ONETOUCH_PKT_LEN,
285 onetouch->data, onetouch->data_dma);
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286 }
287}
9cfb95ef 288
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289static struct scsi_host_template onetouch_host_template;
290
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291static int onetouch_probe(struct usb_interface *intf,
292 const struct usb_device_id *id)
293{
294 struct us_data *us;
295 int result;
296
297 result = usb_stor_probe1(&us, intf, id,
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298 (id - onetouch_usb_ids) + onetouch_unusual_dev_list,
299 &onetouch_host_template);
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300 if (result)
301 return result;
302
303 /* Use default transport and protocol */
304
305 result = usb_stor_probe2(us);
306 return result;
307}
308
309static struct usb_driver onetouch_driver = {
aa519be3 310 .name = DRV_NAME,
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311 .probe = onetouch_probe,
312 .disconnect = usb_stor_disconnect,
313 .suspend = usb_stor_suspend,
314 .resume = usb_stor_resume,
315 .reset_resume = usb_stor_reset_resume,
316 .pre_reset = usb_stor_pre_reset,
317 .post_reset = usb_stor_post_reset,
318 .id_table = onetouch_usb_ids,
319 .soft_unbind = 1,
e73b2db6 320 .no_dynamic_id = 1,
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321};
322
aa519be3 323module_usb_stor_driver(onetouch_driver, onetouch_host_template, DRV_NAME);
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