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.
29 	guard(spinlock_irqsave)(&iforce->xmit_lock);  in __iforce_usb_xmit()
31 	if (iforce->xmit.head == iforce->xmit.tail) {  in __iforce_usb_xmit()
36 	((char *)iforce_usb->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];  in __iforce_usb_xmit()
37 	XMIT_INC(iforce->xmit.tail, 1);  in __iforce_usb_xmit()
38 	n = iforce->xmit.buf[iforce->xmit.tail];  in __iforce_usb_xmit()
39 	XMIT_INC(iforce->xmit.tail, 1);  in __iforce_usb_xmit()
41 	iforce_usb->out->transfer_buffer_length = n + 1;  in __iforce_usb_xmit()
42 	iforce_usb->out->dev = iforce_usb->usbdev;  in __iforce_usb_xmit()
45 	c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);  in __iforce_usb_xmit()
49 	memcpy(iforce_usb->out->transfer_buffer + 1,  in __iforce_usb_xmit()
50 	       &iforce->xmit.buf[iforce->xmit.tail],  in __iforce_usb_xmit()
53 		memcpy(iforce_usb->out->transfer_buffer + 1 + c,  in __iforce_usb_xmit()
54 		       &iforce->xmit.buf[0],  in __iforce_usb_xmit()
55 		       n - c);  in __iforce_usb_xmit()
57 	XMIT_INC(iforce->xmit.tail, n);  in __iforce_usb_xmit()
59 	n=usb_submit_urb(iforce_usb->out, GFP_ATOMIC);  in __iforce_usb_xmit()
61 		dev_warn(&iforce_usb->intf->dev,  in __iforce_usb_xmit()
73 	if (!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags))  in iforce_usb_xmit()
87 		return -ENOMEM;  in iforce_usb_get_id()
89 	status = usb_control_msg(iforce_usb->usbdev,  in iforce_usb_get_id()
90 				 usb_rcvctrlpipe(iforce_usb->usbdev, 0),  in iforce_usb_get_id()
96 		dev_err(&iforce_usb->intf->dev,  in iforce_usb_get_id()
99 		status = -EIO;  in iforce_usb_get_id()
115 	if (usb_submit_urb(iforce_usb->irq, GFP_KERNEL))  in iforce_usb_start_io()
116 		return -EIO;  in iforce_usb_start_io()
126 	usb_kill_urb(iforce_usb->irq);  in iforce_usb_stop_io()
127 	usb_kill_urb(iforce_usb->out);  in iforce_usb_stop_io()
139 	struct iforce_usb *iforce_usb = urb->context;  in iforce_usb_irq()
140 	struct iforce *iforce = &iforce_usb->iforce;  in iforce_usb_irq()
141 	struct device *dev = &iforce_usb->intf->dev;  in iforce_usb_irq()
144 	switch (urb->status) {  in iforce_usb_irq()
148 	case -ECONNRESET:  in iforce_usb_irq()
149 	case -ENOENT:  in iforce_usb_irq()
150 	case -ESHUTDOWN:  in iforce_usb_irq()
152 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",  in iforce_usb_irq()
153 			__func__, urb->status);  in iforce_usb_irq()
156 		dev_dbg(dev, "%s - urb has status of: %d\n",  in iforce_usb_irq()
157 			__func__, urb->status);  in iforce_usb_irq()
161 	iforce_process_packet(iforce, iforce_usb->data_in[0],  in iforce_usb_irq()
162 			      iforce_usb->data_in + 1, urb->actual_length - 1);  in iforce_usb_irq()
167 		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",  in iforce_usb_irq()
173 	struct iforce_usb *iforce_usb = urb->context;  in iforce_usb_out()
174 	struct iforce *iforce = &iforce_usb->iforce;  in iforce_usb_out()
176 	if (urb->status) {  in iforce_usb_out()
177 		dev_dbg(&iforce_usb->intf->dev, "urb->status %d, exiting\n",  in iforce_usb_out()
178 			urb->status);  in iforce_usb_out()
185 	wake_up_all(&iforce->wait);  in iforce_usb_out()
195 	int err = -ENOMEM;  in iforce_usb_probe()
197 	interface = intf->cur_altsetting;  in iforce_usb_probe()
199 	if (interface->desc.bNumEndpoints < 2)  in iforce_usb_probe()
200 		return -ENODEV;  in iforce_usb_probe()
202 	epirq = &interface->endpoint[0].desc;  in iforce_usb_probe()
204 		return -ENODEV;  in iforce_usb_probe()
206 	epout = &interface->endpoint[1].desc;  in iforce_usb_probe()
208 		return -ENODEV;  in iforce_usb_probe()
214 	iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL);  in iforce_usb_probe()
215 	if (!iforce_usb->irq)  in iforce_usb_probe()
218 	iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL);  in iforce_usb_probe()
219 	if (!iforce_usb->out)  in iforce_usb_probe()
222 	iforce_usb->iforce.xport_ops = &iforce_usb_xport_ops;  in iforce_usb_probe()
224 	iforce_usb->usbdev = dev;  in iforce_usb_probe()
225 	iforce_usb->intf = intf;  in iforce_usb_probe()
227 	usb_fill_int_urb(iforce_usb->irq, dev,  in iforce_usb_probe()
228 			 usb_rcvintpipe(dev, epirq->bEndpointAddress),  in iforce_usb_probe()
229 			 iforce_usb->data_in, sizeof(iforce_usb->data_in),  in iforce_usb_probe()
230 			 iforce_usb_irq, iforce_usb, epirq->bInterval);  in iforce_usb_probe()
232 	usb_fill_int_urb(iforce_usb->out, dev,  in iforce_usb_probe()
233 			 usb_sndintpipe(dev, epout->bEndpointAddress),  in iforce_usb_probe()
234 			 iforce_usb->data_out, sizeof(iforce_usb->data_out),  in iforce_usb_probe()
235 			 iforce_usb_out, iforce_usb, epout->bInterval);  in iforce_usb_probe()
237 	err = iforce_init_device(&intf->dev, BUS_USB, &iforce_usb->iforce);  in iforce_usb_probe()
246 		usb_free_urb(iforce_usb->irq);  in iforce_usb_probe()
247 		usb_free_urb(iforce_usb->out);  in iforce_usb_probe()
260 	input_unregister_device(iforce_usb->iforce.dev);  in iforce_usb_disconnect()
262 	usb_free_urb(iforce_usb->irq);  in iforce_usb_disconnect()
263 	usb_free_urb(iforce_usb->out);  in iforce_usb_disconnect()
269 	{ USB_DEVICE(0x044f, 0xa01c) },		/* Thrustmaster Motor Sport GT */
297 MODULE_DESCRIPTION("USB I-Force joysticks and wheels driver");