1 // SPDX-License-Identifier: GPL-2.0+
3  * Support for the Maxtor OneTouch USB hard drive's button
18 #include <linux/usb/input.h>
19 #include "usb.h"
23 #define DRV_NAME "ums-onetouch"
25 MODULE_DESCRIPTION("Maxtor USB OneTouch hard drive button driver");
33 static int onetouch_connect_input(struct us_data *ss);
40 	struct usb_device *udev;	/* usb device */
62 MODULE_DEVICE_TABLE(usb, onetouch_usb_ids);
90 	struct usb_onetouch *onetouch = urb->context;  in usb_onetouch_irq()
91 	signed char *data = onetouch->data;  in usb_onetouch_irq()
92 	struct input_dev *dev = onetouch->dev;  in usb_onetouch_irq()
93 	int status = urb->status;  in usb_onetouch_irq()
99 	case -ECONNRESET:	/* unlink */  in usb_onetouch_irq()
100 	case -ENOENT:  in usb_onetouch_irq()
101 	case -ESHUTDOWN:  in usb_onetouch_irq()
103 	/* -EPIPE:  should clear the halt */  in usb_onetouch_irq()
114 		dev_err(&dev->dev, "can't resubmit intr, %s-%s/input0, "  in usb_onetouch_irq()
115 			"retval %d\n", onetouch->udev->bus->bus_name,  in usb_onetouch_irq()
116 			onetouch->udev->devpath, retval);  in usb_onetouch_irq()
123 	onetouch->is_open = 1;  in usb_onetouch_open()
124 	onetouch->irq->dev = onetouch->udev;  in usb_onetouch_open()
125 	if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {  in usb_onetouch_open()
126 		dev_err(&dev->dev, "usb_submit_urb failed\n");  in usb_onetouch_open()
127 		return -EIO;  in usb_onetouch_open()
137 	usb_kill_urb(onetouch->irq);  in usb_onetouch_close()
138 	onetouch->is_open = 0;  in usb_onetouch_close()
144 	struct usb_onetouch *onetouch = (struct usb_onetouch *) us->extra;  in usb_onetouch_pm_hook()
146 	if (onetouch->is_open) {  in usb_onetouch_pm_hook()
149 			usb_kill_urb(onetouch->irq);  in usb_onetouch_pm_hook()
152 			if (usb_submit_urb(onetouch->irq, GFP_NOIO) != 0)  in usb_onetouch_pm_hook()
153 				dev_err(&onetouch->irq->dev->dev,  in usb_onetouch_pm_hook()
163 static int onetouch_connect_input(struct us_data *ss)  in onetouch_connect_input()  argument
165 	struct usb_device *udev = ss->pusb_dev;  in onetouch_connect_input()
171 	int error = -ENOMEM;  in onetouch_connect_input()
173 	interface = ss->pusb_intf->cur_altsetting;  in onetouch_connect_input()
175 	if (interface->desc.bNumEndpoints != 3)  in onetouch_connect_input()
176 		return -ENODEV;  in onetouch_connect_input()
178 	endpoint = &interface->endpoint[2].desc;  in onetouch_connect_input()
180 		return -ENODEV;  in onetouch_connect_input()
182 	pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);  in onetouch_connect_input()
191 	onetouch->data = usb_alloc_coherent(udev, ONETOUCH_PKT_LEN,  in onetouch_connect_input()
192 					    GFP_KERNEL, &onetouch->data_dma);  in onetouch_connect_input()
193 	if (!onetouch->data)  in onetouch_connect_input()
196 	onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);  in onetouch_connect_input()
197 	if (!onetouch->irq)  in onetouch_connect_input()
200 	onetouch->udev = udev;  in onetouch_connect_input()
201 	onetouch->dev = input_dev;  in onetouch_connect_input()
203 	if (udev->manufacturer)  in onetouch_connect_input()
204 		strscpy(onetouch->name, udev->manufacturer,  in onetouch_connect_input()
205 			sizeof(onetouch->name));  in onetouch_connect_input()
206 	if (udev->product) {  in onetouch_connect_input()
207 		if (udev->manufacturer)  in onetouch_connect_input()
208 			strlcat(onetouch->name, " ", sizeof(onetouch->name));  in onetouch_connect_input()
209 		strlcat(onetouch->name, udev->product, sizeof(onetouch->name));  in onetouch_connect_input()
212 	if (!strlen(onetouch->name))  in onetouch_connect_input()
213 		snprintf(onetouch->name, sizeof(onetouch->name),  in onetouch_connect_input()
215 			 le16_to_cpu(udev->descriptor.idVendor),  in onetouch_connect_input()
216 			 le16_to_cpu(udev->descriptor.idProduct));  in onetouch_connect_input()
218 	usb_make_path(udev, onetouch->phys, sizeof(onetouch->phys));  in onetouch_connect_input()
219 	strlcat(onetouch->phys, "/input0", sizeof(onetouch->phys));  in onetouch_connect_input()
221 	input_dev->name = onetouch->name;  in onetouch_connect_input()
222 	input_dev->phys = onetouch->phys;  in onetouch_connect_input()
223 	usb_to_input_id(udev, &input_dev->id);  in onetouch_connect_input()
224 	input_dev->dev.parent = &udev->dev;  in onetouch_connect_input()
226 	set_bit(EV_KEY, input_dev->evbit);  in onetouch_connect_input()
227 	set_bit(ONETOUCH_BUTTON, input_dev->keybit);  in onetouch_connect_input()
228 	clear_bit(0, input_dev->keybit);  in onetouch_connect_input()
232 	input_dev->open = usb_onetouch_open;  in onetouch_connect_input()
233 	input_dev->close = usb_onetouch_close;  in onetouch_connect_input()
235 	usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data, maxp,  in onetouch_connect_input()
236 			 usb_onetouch_irq, onetouch, endpoint->bInterval);  in onetouch_connect_input()
237 	onetouch->irq->transfer_dma = onetouch->data_dma;  in onetouch_connect_input()
238 	onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in onetouch_connect_input()
240 	ss->extra_destructor = onetouch_release_input;  in onetouch_connect_input()
241 	ss->extra = onetouch;  in onetouch_connect_input()
243 	ss->suspend_resume_hook = usb_onetouch_pm_hook;  in onetouch_connect_input()
246 	error = input_register_device(onetouch->dev);  in onetouch_connect_input()
252  fail3:	usb_free_urb(onetouch->irq);  in onetouch_connect_input()
254 			  onetouch->data, onetouch->data_dma);  in onetouch_connect_input()
265 		usb_kill_urb(onetouch->irq);  in onetouch_release_input()
266 		input_unregister_device(onetouch->dev);  in onetouch_release_input()
267 		usb_free_urb(onetouch->irq);  in onetouch_release_input()
268 		usb_free_coherent(onetouch->udev, ONETOUCH_PKT_LEN,  in onetouch_release_input()
269 				  onetouch->data, onetouch->data_dma);  in onetouch_release_input()
282 			(id - onetouch_usb_ids) + onetouch_unusual_dev_list,  in onetouch_probe()