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
41 	struct usb_acecad *acecad = urb->context;  in usb_acecad_irq()
42 	unsigned char *data = acecad->data;  in usb_acecad_irq()
43 	struct input_dev *dev = acecad->input;  in usb_acecad_irq()
44 	struct usb_interface *intf = acecad->intf;  in usb_acecad_irq()
46 	int prox, status;  in usb_acecad_irq()  local
48 	switch (urb->status) {  in usb_acecad_irq()
52 	case -ECONNRESET:  in usb_acecad_irq()
53 	case -ENOENT:  in usb_acecad_irq()
54 	case -ESHUTDOWN:  in usb_acecad_irq()
56 		dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",  in usb_acecad_irq()
57 			__func__, urb->status);  in usb_acecad_irq()
60 		dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",  in usb_acecad_irq()
61 			__func__, urb->status);  in usb_acecad_irq()
65 	prox = (data[0] & 0x04) >> 2;  in usb_acecad_irq()
66 	input_report_key(dev, BTN_TOOL_PEN, prox);  in usb_acecad_irq()
68 	if (prox) {  in usb_acecad_irq()
84 	/* event termination */  in usb_acecad_irq()
90 		dev_err(&intf->dev,  in usb_acecad_irq()
91 			"can't resubmit intr, %s-%s/input0, status %d\n",  in usb_acecad_irq()
92 			udev->bus->bus_name,  in usb_acecad_irq()
93 			udev->devpath, status);  in usb_acecad_irq()
100 	acecad->irq->dev = interface_to_usbdev(acecad->intf);  in usb_acecad_open()
101 	if (usb_submit_urb(acecad->irq, GFP_KERNEL))  in usb_acecad_open()
102 		return -EIO;  in usb_acecad_open()
111 	usb_kill_urb(acecad->irq);  in usb_acecad_close()
117 	struct usb_host_interface *interface = intf->cur_altsetting;  in usb_acecad_probe()
124 	if (interface->desc.bNumEndpoints != 1)  in usb_acecad_probe()
125 		return -ENODEV;  in usb_acecad_probe()
127 	endpoint = &interface->endpoint[0].desc;  in usb_acecad_probe()
130 		return -ENODEV;  in usb_acecad_probe()
132 	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);  in usb_acecad_probe()
138 		err = -ENOMEM;  in usb_acecad_probe()
142 	acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);  in usb_acecad_probe()
143 	if (!acecad->data) {  in usb_acecad_probe()
144 		err= -ENOMEM;  in usb_acecad_probe()
148 	acecad->irq = usb_alloc_urb(0, GFP_KERNEL);  in usb_acecad_probe()
149 	if (!acecad->irq) {  in usb_acecad_probe()
150 		err = -ENOMEM;  in usb_acecad_probe()
154 	acecad->intf = intf;  in usb_acecad_probe()
155 	acecad->input = input_dev;  in usb_acecad_probe()
157 	if (dev->manufacturer)  in usb_acecad_probe()
158 		strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name));  in usb_acecad_probe()
160 	if (dev->product) {  in usb_acecad_probe()
161 		if (dev->manufacturer)  in usb_acecad_probe()
162 			strlcat(acecad->name, " ", sizeof(acecad->name));  in usb_acecad_probe()
163 		strlcat(acecad->name, dev->product, sizeof(acecad->name));  in usb_acecad_probe()
166 	usb_make_path(dev, acecad->phys, sizeof(acecad->phys));  in usb_acecad_probe()
167 	strlcat(acecad->phys, "/input0", sizeof(acecad->phys));  in usb_acecad_probe()
169 	input_dev->name = acecad->name;  in usb_acecad_probe()
170 	input_dev->phys = acecad->phys;  in usb_acecad_probe()
171 	usb_to_input_id(dev, &input_dev->id);  in usb_acecad_probe()
172 	input_dev->dev.parent = &intf->dev;  in usb_acecad_probe()
176 	input_dev->open = usb_acecad_open;  in usb_acecad_probe()
177 	input_dev->close = usb_acecad_close;  in usb_acecad_probe()
179 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);  in usb_acecad_probe()
180 	input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) |  in usb_acecad_probe()
184 	switch (id->driver_info) {  in usb_acecad_probe()
189 		if (!strlen(acecad->name))  in usb_acecad_probe()
190 			snprintf(acecad->name, sizeof(acecad->name),  in usb_acecad_probe()
192 				le16_to_cpu(dev->descriptor.idVendor),  in usb_acecad_probe()
193 				le16_to_cpu(dev->descriptor.idProduct));  in usb_acecad_probe()
200 		if (!strlen(acecad->name))  in usb_acecad_probe()
201 			snprintf(acecad->name, sizeof(acecad->name),  in usb_acecad_probe()
203 				le16_to_cpu(dev->descriptor.idVendor),  in usb_acecad_probe()
204 				le16_to_cpu(dev->descriptor.idProduct));  in usb_acecad_probe()
208 	usb_fill_int_urb(acecad->irq, dev, pipe,  in usb_acecad_probe()
209 			acecad->data, maxp > 8 ? 8 : maxp,  in usb_acecad_probe()
210 			usb_acecad_irq, acecad, endpoint->bInterval);  in usb_acecad_probe()
211 	acecad->irq->transfer_dma = acecad->data_dma;  in usb_acecad_probe()
212 	acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in usb_acecad_probe()
214 	err = input_register_device(acecad->input);  in usb_acecad_probe()
222  fail3:	usb_free_urb(acecad->irq);  in usb_acecad_probe()
223  fail2:	usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);  in usb_acecad_probe()
236 	input_unregister_device(acecad->input);  in usb_acecad_disconnect()
237 	usb_free_urb(acecad->irq);  in usb_acecad_disconnect()
238 	usb_free_coherent(udev, 8, acecad->data, acecad->data_dma);  in usb_acecad_disconnect()