1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Copyright (c) 2001-2005 Edouard TISSERANT   <edouard.tisserant@wanadoo.fr>
4  *  Copyright (c) 2004-2005 Stephane VOLTZ      <svoltz@numericable.fr>
9  *      v3.2 - Added sysfs support
38 	struct usb_acecad *acecad = urb->context;  in usb_acecad_irq()
39 	unsigned char *data = acecad->data;  in usb_acecad_irq()
40 	struct input_dev *dev = acecad->input;  in usb_acecad_irq()
41 	struct usb_interface *intf = acecad->intf;  in usb_acecad_irq()
43 	int prox, status;  in usb_acecad_irq()  local
45 	switch (urb->status) {  in usb_acecad_irq()
49 	case -ECONNRESET:  in usb_acecad_irq()
50 	case -ENOENT:  in usb_acecad_irq()
51 	case -ESHUTDOWN:  in usb_acecad_irq()
53 		dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",  in usb_acecad_irq()
54 			__func__, urb->status);  in usb_acecad_irq()
57 		dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",  in usb_acecad_irq()
58 			__func__, urb->status);  in usb_acecad_irq()
62 	prox = (data[0] & 0x04) >> 2;  in usb_acecad_irq()
63 	input_report_key(dev, BTN_TOOL_PEN, prox);  in usb_acecad_irq()
65 	if (prox) {  in usb_acecad_irq()
81 	/* event termination */  in usb_acecad_irq()
87 		dev_err(&intf->dev,  in usb_acecad_irq()
88 			"can't resubmit intr, %s-%s/input0, status %d\n",  in usb_acecad_irq()
89 			udev->bus->bus_name,  in usb_acecad_irq()
90 			udev->devpath, status);  in usb_acecad_irq()
97 	acecad->irq->dev = interface_to_usbdev(acecad->intf);  in usb_acecad_open()
98 	if (usb_submit_urb(acecad->irq, GFP_KERNEL))  in usb_acecad_open()
99 		return -EIO;  in usb_acecad_open()
108 	usb_kill_urb(acecad->irq);  in usb_acecad_close()
114 	struct usb_host_interface *interface = intf->cur_altsetting;  in usb_acecad_probe()
121 	if (interface->desc.bNumEndpoints != 1)  in usb_acecad_probe()
122 		return -ENODEV;  in usb_acecad_probe()
124 	endpoint = &interface->endpoint[0].desc;  in usb_acecad_probe()
127 		return -ENODEV;  in usb_acecad_probe()
129 	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);  in usb_acecad_probe()
135 		err = -ENOMEM;  in usb_acecad_probe()
139 	acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);  in usb_acecad_probe()
140 	if (!acecad->data) {  in usb_acecad_probe()
141 		err= -ENOMEM;  in usb_acecad_probe()
145 	acecad->irq = usb_alloc_urb(0, GFP_KERNEL);  in usb_acecad_probe()
146 	if (!acecad->irq) {  in usb_acecad_probe()
147 		err = -ENOMEM;  in usb_acecad_probe()
151 	acecad->intf = intf;  in usb_acecad_probe()
152 	acecad->input = input_dev;  in usb_acecad_probe()
154 	if (dev->manufacturer)  in usb_acecad_probe()
155 		strscpy(acecad->name, dev->manufacturer, sizeof(acecad->name));  in usb_acecad_probe()
157 	if (dev->product) {  in usb_acecad_probe()
158 		if (dev->manufacturer)  in usb_acecad_probe()
159 			strlcat(acecad->name, " ", sizeof(acecad->name));  in usb_acecad_probe()
160 		strlcat(acecad->name, dev->product, sizeof(acecad->name));  in usb_acecad_probe()
163 	usb_make_path(dev, acecad->phys, sizeof(acecad->phys));  in usb_acecad_probe()
164 	strlcat(acecad->phys, "/input0", sizeof(acecad->phys));  in usb_acecad_probe()
166 	input_dev->name = acecad->name;  in usb_acecad_probe()
167 	input_dev->phys = acecad->phys;  in usb_acecad_probe()
168 	usb_to_input_id(dev, &input_dev->id);  in usb_acecad_probe()
169 	input_dev->dev.parent = &intf->dev;  in usb_acecad_probe()
173 	input_dev->open = usb_acecad_open;  in usb_acecad_probe()
174 	input_dev->close = usb_acecad_close;  in usb_acecad_probe()
176 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);  in usb_acecad_probe()
177 	input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) |  in usb_acecad_probe()
181 	switch (id->driver_info) {  in usb_acecad_probe()
186 		if (!strlen(acecad->name))  in usb_acecad_probe()
187 			snprintf(acecad->name, sizeof(acecad->name),  in usb_acecad_probe()
189 				le16_to_cpu(dev->descriptor.idVendor),  in usb_acecad_probe()
190 				le16_to_cpu(dev->descriptor.idProduct));  in usb_acecad_probe()
197 		if (!strlen(acecad->name))  in usb_acecad_probe()
198 			snprintf(acecad->name, sizeof(acecad->name),  in usb_acecad_probe()
200 				le16_to_cpu(dev->descriptor.idVendor),  in usb_acecad_probe()
201 				le16_to_cpu(dev->descriptor.idProduct));  in usb_acecad_probe()
205 	usb_fill_int_urb(acecad->irq, dev, pipe,  in usb_acecad_probe()
206 			acecad->data, maxp > 8 ? 8 : maxp,  in usb_acecad_probe()
207 			usb_acecad_irq, acecad, endpoint->bInterval);  in usb_acecad_probe()
208 	acecad->irq->transfer_dma = acecad->data_dma;  in usb_acecad_probe()
209 	acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in usb_acecad_probe()
211 	err = input_register_device(acecad->input);  in usb_acecad_probe()
219  fail3:	usb_free_urb(acecad->irq);  in usb_acecad_probe()
220  fail2:	usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);  in usb_acecad_probe()
233 	input_unregister_device(acecad->input);  in usb_acecad_disconnect()
234 	usb_free_urb(acecad->irq);  in usb_acecad_disconnect()
235 	usb_free_coherent(udev, 8, acecad->data, acecad->data_dma);  in usb_acecad_disconnect()