| /* |
| * $Id: iforce-usb.c,v 1.16 2002/06/09 11:08:04 jdeneux Exp $ |
| * |
| * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz> |
| * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com> |
| * |
| * USB/RS232 I-Force joysticks and wheels. |
| */ |
| |
| /* |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| * Should you need to contact me, the author, you can do so either by |
| * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: |
| * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
| */ |
| |
| #include "iforce.h" |
| |
| void iforce_usb_xmit(struct iforce *iforce) |
| { |
| int n, c; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&iforce->xmit_lock, flags); |
| |
| if (iforce->xmit.head == iforce->xmit.tail) { |
| clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags); |
| spin_unlock_irqrestore(&iforce->xmit_lock, flags); |
| return; |
| } |
| |
| ((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail]; |
| XMIT_INC(iforce->xmit.tail, 1); |
| n = iforce->xmit.buf[iforce->xmit.tail]; |
| XMIT_INC(iforce->xmit.tail, 1); |
| |
| iforce->out->transfer_buffer_length = n + 1; |
| iforce->out->dev = iforce->usbdev; |
| |
| /* Copy rest of data then */ |
| c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE); |
| if (n < c) c=n; |
| |
| memcpy(iforce->out->transfer_buffer + 1, |
| &iforce->xmit.buf[iforce->xmit.tail], |
| c); |
| if (n != c) { |
| memcpy(iforce->out->transfer_buffer + 1 + c, |
| &iforce->xmit.buf[0], |
| n-c); |
| } |
| XMIT_INC(iforce->xmit.tail, n); |
| |
| if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) { |
| warn("usb_submit_urb failed %d\n", n); |
| } |
| |
| /* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended. |
| * As long as the urb completion handler is not called, the transmiting |
| * is considered to be running */ |
| spin_unlock_irqrestore(&iforce->xmit_lock, flags); |
| } |
| |
| static void iforce_usb_irq(struct urb *urb) |
| { |
| struct iforce *iforce = urb->context; |
| int status; |
| |
| switch (urb->status) { |
| case 0: |
| /* success */ |
| break; |
| case -ECONNRESET: |
| case -ENOENT: |
| case -ESHUTDOWN: |
| /* this urb is terminated, clean up */ |
| dbg("%s - urb shutting down with status: %d", |
| __FUNCTION__, urb->status); |
| return; |
| default: |
| dbg("%s - urb has status of: %d", __FUNCTION__, urb->status); |
| goto exit; |
| } |
| |
| iforce_process_packet(iforce, |
| (iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1); |
| |
| exit: |
| status = usb_submit_urb (urb, GFP_ATOMIC); |
| if (status) |
| err ("%s - usb_submit_urb failed with result %d", |
| __FUNCTION__, status); |
| } |
| |
| static void iforce_usb_out(struct urb *urb) |
| { |
| struct iforce *iforce = urb->context; |
| |
| if (urb->status) { |
| dbg("urb->status %d, exiting", urb->status); |
| return; |
| } |
| |
| iforce_usb_xmit(iforce); |
| |
| wake_up(&iforce->wait); |
| } |
| |
| static void iforce_usb_ctrl(struct urb *urb) |
| { |
| struct iforce *iforce = urb->context; |
| if (urb->status) return; |
| iforce->ecmd = 0xff00 | urb->actual_length; |
| wake_up(&iforce->wait); |
| } |
| |
| static int iforce_usb_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| struct usb_device *dev = interface_to_usbdev(intf); |
| struct usb_host_interface *interface; |
| struct usb_endpoint_descriptor *epirq, *epout; |
| struct iforce *iforce; |
| int err = -ENOMEM; |
| |
| interface = intf->cur_altsetting; |
| |
| epirq = &interface->endpoint[0].desc; |
| epout = &interface->endpoint[1].desc; |
| |
| if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL))) |
| goto fail; |
| |
| if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL))) |
| goto fail; |
| |
| if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL))) |
| goto fail; |
| |
| if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL))) |
| goto fail; |
| |
| iforce->bus = IFORCE_USB; |
| iforce->usbdev = dev; |
| |
| iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE; |
| iforce->cr.wIndex = 0; |
| iforce->cr.wLength = 16; |
| |
| usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress), |
| iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval); |
| |
| usb_fill_bulk_urb(iforce->out, dev, usb_sndbulkpipe(dev, epout->bEndpointAddress), |
| iforce + 1, 32, iforce_usb_out, iforce); |
| |
| usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0), |
| (void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce); |
| |
| err = iforce_init_device(iforce); |
| if (err) |
| goto fail; |
| |
| usb_set_intfdata(intf, iforce); |
| return 0; |
| |
| fail: |
| if (iforce) { |
| usb_free_urb(iforce->irq); |
| usb_free_urb(iforce->out); |
| usb_free_urb(iforce->ctrl); |
| kfree(iforce); |
| } |
| |
| return err; |
| } |
| |
| /* Called by iforce_delete() */ |
| void iforce_usb_delete(struct iforce* iforce) |
| { |
| usb_kill_urb(iforce->irq); |
| usb_kill_urb(iforce->out); |
| usb_kill_urb(iforce->ctrl); |
| |
| usb_free_urb(iforce->irq); |
| usb_free_urb(iforce->out); |
| usb_free_urb(iforce->ctrl); |
| } |
| |
| static void iforce_usb_disconnect(struct usb_interface *intf) |
| { |
| struct iforce *iforce = usb_get_intfdata(intf); |
| int open = 0; /* FIXME! iforce->dev.handle->open; */ |
| |
| usb_set_intfdata(intf, NULL); |
| if (iforce) { |
| iforce->usbdev = NULL; |
| input_unregister_device(iforce->dev); |
| |
| if (!open) { |
| iforce_delete_device(iforce); |
| kfree(iforce); |
| } |
| } |
| } |
| |
| static struct usb_device_id iforce_usb_ids [] = { |
| { USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */ |
| { USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */ |
| { USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */ |
| { USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */ |
| { USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */ |
| { USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */ |
| { USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */ |
| { USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */ |
| { USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */ |
| { USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */ |
| { } /* Terminating entry */ |
| }; |
| |
| MODULE_DEVICE_TABLE (usb, iforce_usb_ids); |
| |
| struct usb_driver iforce_usb_driver = { |
| .name = "iforce", |
| .probe = iforce_usb_probe, |
| .disconnect = iforce_usb_disconnect, |
| .id_table = iforce_usb_ids, |
| }; |