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1da177e4 LT |
1 | /* |
2 | * $Id: iforce-usb.c,v 1.16 2002/06/09 11:08:04 jdeneux Exp $ | |
3 | * | |
4 | * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz> | |
5 | * Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com> | |
6 | * | |
7 | * USB/RS232 I-Force joysticks and wheels. | |
8 | */ | |
9 | ||
10 | /* | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
24 | * | |
25 | * Should you need to contact me, the author, you can do so either by | |
26 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
27 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
28 | */ | |
29 | ||
30 | #include "iforce.h" | |
31 | ||
32 | void iforce_usb_xmit(struct iforce *iforce) | |
33 | { | |
34 | int n, c; | |
35 | unsigned long flags; | |
36 | ||
37 | spin_lock_irqsave(&iforce->xmit_lock, flags); | |
38 | ||
39 | if (iforce->xmit.head == iforce->xmit.tail) { | |
40 | clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags); | |
41 | spin_unlock_irqrestore(&iforce->xmit_lock, flags); | |
42 | return; | |
43 | } | |
44 | ||
45 | ((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail]; | |
46 | XMIT_INC(iforce->xmit.tail, 1); | |
47 | n = iforce->xmit.buf[iforce->xmit.tail]; | |
48 | XMIT_INC(iforce->xmit.tail, 1); | |
49 | ||
50 | iforce->out->transfer_buffer_length = n + 1; | |
51 | iforce->out->dev = iforce->usbdev; | |
52 | ||
53 | /* Copy rest of data then */ | |
54 | c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE); | |
55 | if (n < c) c=n; | |
56 | ||
57 | memcpy(iforce->out->transfer_buffer + 1, | |
58 | &iforce->xmit.buf[iforce->xmit.tail], | |
59 | c); | |
60 | if (n != c) { | |
61 | memcpy(iforce->out->transfer_buffer + 1 + c, | |
62 | &iforce->xmit.buf[0], | |
63 | n-c); | |
64 | } | |
65 | XMIT_INC(iforce->xmit.tail, n); | |
66 | ||
67 | if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) { | |
68 | printk(KERN_WARNING "iforce-usb.c: iforce_usb_xmit: usb_submit_urb failed %d\n", n); | |
69 | } | |
70 | ||
71 | /* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended. | |
72 | * As long as the urb completion handler is not called, the transmiting | |
73 | * is considered to be running */ | |
74 | spin_unlock_irqrestore(&iforce->xmit_lock, flags); | |
75 | } | |
76 | ||
7d12e780 | 77 | static void iforce_usb_irq(struct urb *urb) |
1da177e4 LT |
78 | { |
79 | struct iforce *iforce = urb->context; | |
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 | dbg("%s - urb shutting down with status: %d", | |
91 | __FUNCTION__, urb->status); | |
92 | return; | |
93 | default: | |
94 | dbg("%s - urb has status of: %d", __FUNCTION__, urb->status); | |
95 | goto exit; | |
96 | } | |
97 | ||
98 | iforce_process_packet(iforce, | |
7d12e780 | 99 | (iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1); |
1da177e4 LT |
100 | |
101 | exit: | |
102 | status = usb_submit_urb (urb, GFP_ATOMIC); | |
103 | if (status) | |
104 | err ("%s - usb_submit_urb failed with result %d", | |
105 | __FUNCTION__, status); | |
106 | } | |
107 | ||
7d12e780 | 108 | static void iforce_usb_out(struct urb *urb) |
1da177e4 LT |
109 | { |
110 | struct iforce *iforce = urb->context; | |
111 | ||
112 | if (urb->status) { | |
113 | printk(KERN_DEBUG "iforce_usb_out: urb->status %d, exiting", urb->status); | |
114 | return; | |
115 | } | |
116 | ||
117 | iforce_usb_xmit(iforce); | |
118 | ||
119 | wake_up(&iforce->wait); | |
120 | } | |
121 | ||
7d12e780 | 122 | static void iforce_usb_ctrl(struct urb *urb) |
1da177e4 LT |
123 | { |
124 | struct iforce *iforce = urb->context; | |
125 | if (urb->status) return; | |
126 | iforce->ecmd = 0xff00 | urb->actual_length; | |
127 | wake_up(&iforce->wait); | |
128 | } | |
129 | ||
130 | static int iforce_usb_probe(struct usb_interface *intf, | |
131 | const struct usb_device_id *id) | |
132 | { | |
133 | struct usb_device *dev = interface_to_usbdev(intf); | |
134 | struct usb_host_interface *interface; | |
135 | struct usb_endpoint_descriptor *epirq, *epout; | |
136 | struct iforce *iforce; | |
17dd3f0f | 137 | int err = -ENOMEM; |
1da177e4 LT |
138 | |
139 | interface = intf->cur_altsetting; | |
140 | ||
141 | epirq = &interface->endpoint[0].desc; | |
142 | epout = &interface->endpoint[1].desc; | |
143 | ||
17dd3f0f | 144 | if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL))) |
1da177e4 LT |
145 | goto fail; |
146 | ||
17dd3f0f | 147 | if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL))) |
1da177e4 | 148 | goto fail; |
1da177e4 | 149 | |
17dd3f0f | 150 | if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL))) |
1da177e4 | 151 | goto fail; |
1da177e4 | 152 | |
17dd3f0f | 153 | if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL))) |
1da177e4 | 154 | goto fail; |
1da177e4 LT |
155 | |
156 | iforce->bus = IFORCE_USB; | |
157 | iforce->usbdev = dev; | |
158 | ||
159 | iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE; | |
160 | iforce->cr.wIndex = 0; | |
161 | iforce->cr.wLength = 16; | |
162 | ||
163 | usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress), | |
164 | iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval); | |
165 | ||
166 | usb_fill_bulk_urb(iforce->out, dev, usb_sndbulkpipe(dev, epout->bEndpointAddress), | |
167 | iforce + 1, 32, iforce_usb_out, iforce); | |
168 | ||
169 | usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0), | |
170 | (void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce); | |
171 | ||
17dd3f0f DT |
172 | err = iforce_init_device(iforce); |
173 | if (err) | |
174 | goto fail; | |
1da177e4 LT |
175 | |
176 | usb_set_intfdata(intf, iforce); | |
177 | return 0; | |
178 | ||
179 | fail: | |
180 | if (iforce) { | |
181 | if (iforce->irq) usb_free_urb(iforce->irq); | |
182 | if (iforce->out) usb_free_urb(iforce->out); | |
183 | if (iforce->ctrl) usb_free_urb(iforce->ctrl); | |
184 | kfree(iforce); | |
185 | } | |
186 | ||
17dd3f0f | 187 | return err; |
1da177e4 LT |
188 | } |
189 | ||
190 | /* Called by iforce_delete() */ | |
191 | void iforce_usb_delete(struct iforce* iforce) | |
192 | { | |
193 | usb_unlink_urb(iforce->irq); | |
194 | /* Is it ok to unlink those ? */ | |
195 | usb_unlink_urb(iforce->out); | |
196 | usb_unlink_urb(iforce->ctrl); | |
197 | ||
198 | usb_free_urb(iforce->irq); | |
199 | usb_free_urb(iforce->out); | |
200 | usb_free_urb(iforce->ctrl); | |
201 | } | |
202 | ||
203 | static void iforce_usb_disconnect(struct usb_interface *intf) | |
204 | { | |
205 | struct iforce *iforce = usb_get_intfdata(intf); | |
206 | int open = 0; /* FIXME! iforce->dev.handle->open; */ | |
207 | ||
208 | usb_set_intfdata(intf, NULL); | |
209 | if (iforce) { | |
210 | iforce->usbdev = NULL; | |
17dd3f0f | 211 | input_unregister_device(iforce->dev); |
1da177e4 LT |
212 | |
213 | if (!open) { | |
214 | iforce_delete_device(iforce); | |
215 | kfree(iforce); | |
216 | } | |
217 | } | |
218 | } | |
219 | ||
220 | static struct usb_device_id iforce_usb_ids [] = { | |
221 | { USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */ | |
222 | { USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */ | |
223 | { USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */ | |
224 | { USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */ | |
225 | { USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */ | |
226 | { USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */ | |
227 | { USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */ | |
228 | { USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */ | |
229 | { USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */ | |
18098a6c | 230 | { USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */ |
1da177e4 LT |
231 | { } /* Terminating entry */ |
232 | }; | |
233 | ||
234 | MODULE_DEVICE_TABLE (usb, iforce_usb_ids); | |
235 | ||
236 | struct usb_driver iforce_usb_driver = { | |
1da177e4 LT |
237 | .name = "iforce", |
238 | .probe = iforce_usb_probe, | |
239 | .disconnect = iforce_usb_disconnect, | |
240 | .id_table = iforce_usb_ids, | |
241 | }; |