1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
4  *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
6  *  USB/RS232 I-Force joysticks and wheels.
30 	spin_lock_irqsave(&iforce->xmit_lock, flags);  in __iforce_usb_xmit()
32 	if (iforce->xmit.head == iforce->xmit.tail) {  in __iforce_usb_xmit()
34 		spin_unlock_irqrestore(&iforce->xmit_lock, flags);  in __iforce_usb_xmit()
38 	((char *)iforce_usb->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];  in __iforce_usb_xmit()
39 	XMIT_INC(iforce->xmit.tail, 1);  in __iforce_usb_xmit()
40 	n = iforce->xmit.buf[iforce->xmit.tail];  in __iforce_usb_xmit()
41 	XMIT_INC(iforce->xmit.tail, 1);  in __iforce_usb_xmit()
43 	iforce_usb->out->transfer_buffer_length = n + 1;  in __iforce_usb_xmit()
44 	iforce_usb->out->dev = iforce_usb->usbdev;  in __iforce_usb_xmit()
47 	c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);  in __iforce_usb_xmit()
50 	memcpy(iforce_usb->out->transfer_buffer + 1,  in __iforce_usb_xmit()
51 	       &iforce->xmit.buf[iforce->xmit.tail],  in __iforce_usb_xmit()
54 		memcpy(iforce_usb->out->transfer_buffer + 1 + c,  in __iforce_usb_xmit()
55 		       &iforce->xmit.buf[0],  in __iforce_usb_xmit()
56 		       n-c);  in __iforce_usb_xmit()
58 	XMIT_INC(iforce->xmit.tail, n);  in __iforce_usb_xmit()
60 	if ( (n=usb_submit_urb(iforce_usb->out, GFP_ATOMIC)) ) {  in __iforce_usb_xmit()
61 		dev_warn(&iforce_usb->intf->dev,  in __iforce_usb_xmit()
69 	spin_unlock_irqrestore(&iforce->xmit_lock, flags);  in __iforce_usb_xmit()
74 	if (!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags))  in iforce_usb_xmit()
88 		return -ENOMEM;  in iforce_usb_get_id()
90 	status = usb_control_msg(iforce_usb->usbdev,  in iforce_usb_get_id()
91 				 usb_rcvctrlpipe(iforce_usb->usbdev, 0),  in iforce_usb_get_id()
97 		dev_err(&iforce_usb->intf->dev,  in iforce_usb_get_id()
100 		status = -EIO;  in iforce_usb_get_id()
116 	if (usb_submit_urb(iforce_usb->irq, GFP_KERNEL))  in iforce_usb_start_io()
117 		return -EIO;  in iforce_usb_start_io()
127 	usb_kill_urb(iforce_usb->irq);  in iforce_usb_stop_io()
128 	usb_kill_urb(iforce_usb->out);  in iforce_usb_stop_io()
140 	struct iforce_usb *iforce_usb = urb->context;  in iforce_usb_irq()
141 	struct iforce *iforce = &iforce_usb->iforce;  in iforce_usb_irq()
142 	struct device *dev = &iforce_usb->intf->dev;  in iforce_usb_irq()
145 	switch (urb->status) {  in iforce_usb_irq()
149 	case -ECONNRESET:  in iforce_usb_irq()
150 	case -ENOENT:  in iforce_usb_irq()
151 	case -ESHUTDOWN:  in iforce_usb_irq()
153 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",  in iforce_usb_irq()
154 			__func__, urb->status);  in iforce_usb_irq()
157 		dev_dbg(dev, "%s - urb has status of: %d\n",  in iforce_usb_irq()
158 			__func__, urb->status);  in iforce_usb_irq()
162 	iforce_process_packet(iforce, iforce_usb->data_in[0],  in iforce_usb_irq()
163 			      iforce_usb->data_in + 1, urb->actual_length - 1);  in iforce_usb_irq()
168 		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",  in iforce_usb_irq()
174 	struct iforce_usb *iforce_usb = urb->context;  in iforce_usb_out()
175 	struct iforce *iforce = &iforce_usb->iforce;  in iforce_usb_out()
177 	if (urb->status) {  in iforce_usb_out()
178 		dev_dbg(&iforce_usb->intf->dev, "urb->status %d, exiting\n",  in iforce_usb_out()
179 			urb->status);  in iforce_usb_out()
186 	wake_up_all(&iforce->wait);  in iforce_usb_out()
196 	int err = -ENOMEM;  in iforce_usb_probe()
198 	interface = intf->cur_altsetting;  in iforce_usb_probe()
200 	if (interface->desc.bNumEndpoints < 2)  in iforce_usb_probe()
201 		return -ENODEV;  in iforce_usb_probe()
203 	epirq = &interface->endpoint[0].desc;  in iforce_usb_probe()
205 		return -ENODEV;  in iforce_usb_probe()
207 	epout = &interface->endpoint[1].desc;  in iforce_usb_probe()
209 		return -ENODEV;  in iforce_usb_probe()
215 	iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL);  in iforce_usb_probe()
216 	if (!iforce_usb->irq)  in iforce_usb_probe()
219 	iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL);  in iforce_usb_probe()
220 	if (!iforce_usb->out)  in iforce_usb_probe()
223 	iforce_usb->iforce.xport_ops = &iforce_usb_xport_ops;  in iforce_usb_probe()
225 	iforce_usb->usbdev = dev;  in iforce_usb_probe()
226 	iforce_usb->intf = intf;  in iforce_usb_probe()
228 	usb_fill_int_urb(iforce_usb->irq, dev,  in iforce_usb_probe()
229 			 usb_rcvintpipe(dev, epirq->bEndpointAddress),  in iforce_usb_probe()
230 			 iforce_usb->data_in, sizeof(iforce_usb->data_in),  in iforce_usb_probe()
231 			 iforce_usb_irq, iforce_usb, epirq->bInterval);  in iforce_usb_probe()
233 	usb_fill_int_urb(iforce_usb->out, dev,  in iforce_usb_probe()
234 			 usb_sndintpipe(dev, epout->bEndpointAddress),  in iforce_usb_probe()
235 			 iforce_usb->data_out, sizeof(iforce_usb->data_out),  in iforce_usb_probe()
236 			 iforce_usb_out, iforce_usb, epout->bInterval);  in iforce_usb_probe()
238 	err = iforce_init_device(&intf->dev, BUS_USB, &iforce_usb->iforce);  in iforce_usb_probe()
247 		usb_free_urb(iforce_usb->irq);  in iforce_usb_probe()
248 		usb_free_urb(iforce_usb->out);  in iforce_usb_probe()
261 	input_unregister_device(iforce_usb->iforce.dev);  in iforce_usb_disconnect()
263 	usb_free_urb(iforce_usb->irq);  in iforce_usb_disconnect()
264 	usb_free_urb(iforce_usb->out);  in iforce_usb_disconnect()
270 	{ USB_DEVICE(0x044f, 0xa01c) },		/* Thrustmaster Motor Sport GT */
298 MODULE_DESCRIPTION("USB I-Force joysticks and wheels driver");