source: src/linux/universal/linux-3.18/drivers/input/joystick/iforce/iforce-usb.c @ 31885

Last change on this file since 31885 was 31885, checked in by brainslayer, 4 months ago

update

File size: 6.6 KB
Line 
1 /*
2 *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
3 *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
4 *
5 *  USB/RS232 I-Force joysticks and wheels.
6 */
7
8/*
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * Should you need to contact me, the author, you can do so either by
24 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
25 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
26 */
27
28#include "iforce.h"
29
30void iforce_usb_xmit(struct iforce *iforce)
31{
32        int n, c;
33        unsigned long flags;
34
35        spin_lock_irqsave(&iforce->xmit_lock, flags);
36
37        if (iforce->xmit.head == iforce->xmit.tail) {
38                clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
39                spin_unlock_irqrestore(&iforce->xmit_lock, flags);
40                return;
41        }
42
43        ((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
44        XMIT_INC(iforce->xmit.tail, 1);
45        n = iforce->xmit.buf[iforce->xmit.tail];
46        XMIT_INC(iforce->xmit.tail, 1);
47
48        iforce->out->transfer_buffer_length = n + 1;
49        iforce->out->dev = iforce->usbdev;
50
51        /* Copy rest of data then */
52        c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
53        if (n < c) c=n;
54
55        memcpy(iforce->out->transfer_buffer + 1,
56               &iforce->xmit.buf[iforce->xmit.tail],
57               c);
58        if (n != c) {
59                memcpy(iforce->out->transfer_buffer + 1 + c,
60                       &iforce->xmit.buf[0],
61                       n-c);
62        }
63        XMIT_INC(iforce->xmit.tail, n);
64
65        if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
66                clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
67                dev_warn(&iforce->intf->dev, "usb_submit_urb failed %d\n", n);
68        }
69
70        /* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
71         * As long as the urb completion handler is not called, the transmiting
72         * is considered to be running */
73        spin_unlock_irqrestore(&iforce->xmit_lock, flags);
74}
75
76static void iforce_usb_irq(struct urb *urb)
77{
78        struct iforce *iforce = urb->context;
79        struct device *dev = &iforce->intf->dev;
80        int status;
81
82        switch (urb->status) {
83        case 0:
84                /* success */
85                break;
86        case -ECONNRESET:
87        case -ENOENT:
88        case -ESHUTDOWN:
89                /* this urb is terminated, clean up */
90                dev_dbg(dev, "%s - urb shutting down with status: %d\n",
91                        __func__, urb->status);
92                return;
93        default:
94                dev_dbg(dev, "%s - urb has status of: %d\n",
95                        __func__, urb->status);
96                goto exit;
97        }
98
99        iforce_process_packet(iforce,
100                (iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);
101
102exit:
103        status = usb_submit_urb (urb, GFP_ATOMIC);
104        if (status)
105                dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
106                        __func__, status);
107}
108
109static void iforce_usb_out(struct urb *urb)
110{
111        struct iforce *iforce = urb->context;
112
113        if (urb->status) {
114                clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
115                dev_dbg(&iforce->intf->dev, "urb->status %d, exiting\n",
116                        urb->status);
117                return;
118        }
119
120        iforce_usb_xmit(iforce);
121
122        wake_up(&iforce->wait);
123}
124
125static void iforce_usb_ctrl(struct urb *urb)
126{
127        struct iforce *iforce = urb->context;
128        if (urb->status) return;
129        iforce->ecmd = 0xff00 | urb->actual_length;
130        wake_up(&iforce->wait);
131}
132
133static int iforce_usb_probe(struct usb_interface *intf,
134                                const struct usb_device_id *id)
135{
136        struct usb_device *dev = interface_to_usbdev(intf);
137        struct usb_host_interface *interface;
138        struct usb_endpoint_descriptor *epirq, *epout;
139        struct iforce *iforce;
140        int err = -ENOMEM;
141
142        interface = intf->cur_altsetting;
143
144        if (interface->desc.bNumEndpoints < 2)
145                return -ENODEV;
146
147        epirq = &interface->endpoint[0].desc;
148        epout = &interface->endpoint[1].desc;
149
150        if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
151                goto fail;
152
153        if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
154                goto fail;
155
156        if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
157                goto fail;
158
159        if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
160                goto fail;
161
162        iforce->bus = IFORCE_USB;
163        iforce->usbdev = dev;
164        iforce->intf = intf;
165
166        iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
167        iforce->cr.wIndex = 0;
168        iforce->cr.wLength = cpu_to_le16(16);
169
170        usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
171                        iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
172
173        usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
174                        iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);
175
176        usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
177                        (void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
178
179        err = iforce_init_device(iforce);
180        if (err)
181                goto fail;
182
183        usb_set_intfdata(intf, iforce);
184        return 0;
185
186fail:
187        if (iforce) {
188                usb_free_urb(iforce->irq);
189                usb_free_urb(iforce->out);
190                usb_free_urb(iforce->ctrl);
191                kfree(iforce);
192        }
193
194        return err;
195}
196
197static void iforce_usb_disconnect(struct usb_interface *intf)
198{
199        struct iforce *iforce = usb_get_intfdata(intf);
200
201        usb_set_intfdata(intf, NULL);
202
203        input_unregister_device(iforce->dev);
204
205        usb_free_urb(iforce->irq);
206        usb_free_urb(iforce->out);
207        usb_free_urb(iforce->ctrl);
208
209        kfree(iforce);
210}
211
212static struct usb_device_id iforce_usb_ids [] = {
213        { USB_DEVICE(0x044f, 0xa01c) },         /* Thrustmaster Motor Sport GT */
214        { USB_DEVICE(0x046d, 0xc281) },         /* Logitech WingMan Force */
215        { USB_DEVICE(0x046d, 0xc291) },         /* Logitech WingMan Formula Force */
216        { USB_DEVICE(0x05ef, 0x020a) },         /* AVB Top Shot Pegasus */
217        { USB_DEVICE(0x05ef, 0x8884) },         /* AVB Mag Turbo Force */
218        { USB_DEVICE(0x05ef, 0x8888) },         /* AVB Top Shot FFB Racing Wheel */
219        { USB_DEVICE(0x061c, 0xc0a4) },         /* ACT LABS Force RS */
220        { USB_DEVICE(0x061c, 0xc084) },         /* ACT LABS Force RS */
221        { USB_DEVICE(0x06f8, 0x0001) },         /* Guillemot Race Leader Force Feedback */
222        { USB_DEVICE(0x06f8, 0x0003) },         /* Guillemot Jet Leader Force Feedback */
223        { USB_DEVICE(0x06f8, 0x0004) },         /* Guillemot Force Feedback Racing Wheel */
224        { USB_DEVICE(0x06f8, 0xa302) },         /* Guillemot Jet Leader 3D */
225        { }                                     /* Terminating entry */
226};
227
228MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
229
230struct usb_driver iforce_usb_driver = {
231        .name =         "iforce",
232        .probe =        iforce_usb_probe,
233        .disconnect =   iforce_usb_disconnect,
234        .id_table =     iforce_usb_ids,
235};
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