237 lines
6.5 KiB
C
237 lines
6.5 KiB
C
/*
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* Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
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* Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
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*
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* USB/RS232 I-Force joysticks and wheels.
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "iforce.h"
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void iforce_usb_xmit(struct iforce *iforce)
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{
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int n, c;
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unsigned long flags;
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spin_lock_irqsave(&iforce->xmit_lock, flags);
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if (iforce->xmit.head == iforce->xmit.tail) {
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clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
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spin_unlock_irqrestore(&iforce->xmit_lock, flags);
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return;
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}
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((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
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XMIT_INC(iforce->xmit.tail, 1);
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n = iforce->xmit.buf[iforce->xmit.tail];
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XMIT_INC(iforce->xmit.tail, 1);
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iforce->out->transfer_buffer_length = n + 1;
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iforce->out->dev = iforce->usbdev;
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/* Copy rest of data then */
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c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
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if (n < c) c=n;
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memcpy(iforce->out->transfer_buffer + 1,
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&iforce->xmit.buf[iforce->xmit.tail],
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c);
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if (n != c) {
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memcpy(iforce->out->transfer_buffer + 1 + c,
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&iforce->xmit.buf[0],
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n-c);
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}
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XMIT_INC(iforce->xmit.tail, n);
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if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
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clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
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dev_warn(&iforce->intf->dev, "usb_submit_urb failed %d\n", n);
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}
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/* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
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* As long as the urb completion handler is not called, the transmiting
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* is considered to be running */
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spin_unlock_irqrestore(&iforce->xmit_lock, flags);
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}
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static void iforce_usb_irq(struct urb *urb)
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{
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struct iforce *iforce = urb->context;
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struct device *dev = &iforce->intf->dev;
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int status;
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switch (urb->status) {
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case 0:
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/* success */
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break;
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case -ECONNRESET:
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case -ENOENT:
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case -ESHUTDOWN:
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/* this urb is terminated, clean up */
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dev_dbg(dev, "%s - urb shutting down with status: %d\n",
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__func__, urb->status);
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return;
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default:
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dev_dbg(dev, "%s - urb has status of: %d\n",
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__func__, urb->status);
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goto exit;
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}
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iforce_process_packet(iforce,
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(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);
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exit:
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status = usb_submit_urb (urb, GFP_ATOMIC);
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if (status)
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dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
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__func__, status);
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}
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static void iforce_usb_out(struct urb *urb)
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{
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struct iforce *iforce = urb->context;
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if (urb->status) {
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clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
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dev_dbg(&iforce->intf->dev, "urb->status %d, exiting\n",
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urb->status);
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return;
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}
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iforce_usb_xmit(iforce);
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wake_up(&iforce->wait);
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}
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static void iforce_usb_ctrl(struct urb *urb)
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{
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struct iforce *iforce = urb->context;
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if (urb->status) return;
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iforce->ecmd = 0xff00 | urb->actual_length;
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wake_up(&iforce->wait);
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}
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static int iforce_usb_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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struct usb_device *dev = interface_to_usbdev(intf);
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struct usb_host_interface *interface;
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struct usb_endpoint_descriptor *epirq, *epout;
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struct iforce *iforce;
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int err = -ENOMEM;
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interface = intf->cur_altsetting;
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if (interface->desc.bNumEndpoints < 2)
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return -ENODEV;
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epirq = &interface->endpoint[0].desc;
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if (!usb_endpoint_is_int_in(epirq))
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return -ENODEV;
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epout = &interface->endpoint[1].desc;
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if (!usb_endpoint_is_int_out(epout))
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return -ENODEV;
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if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
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goto fail;
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if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
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goto fail;
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if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
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goto fail;
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if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
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goto fail;
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iforce->bus = IFORCE_USB;
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iforce->usbdev = dev;
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iforce->intf = intf;
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iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
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iforce->cr.wIndex = 0;
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iforce->cr.wLength = cpu_to_le16(16);
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usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
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iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
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usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
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iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);
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usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
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(void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
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err = iforce_init_device(iforce);
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if (err)
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goto fail;
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usb_set_intfdata(intf, iforce);
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return 0;
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fail:
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if (iforce) {
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usb_free_urb(iforce->irq);
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usb_free_urb(iforce->out);
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usb_free_urb(iforce->ctrl);
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kfree(iforce);
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}
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return err;
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}
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static void iforce_usb_disconnect(struct usb_interface *intf)
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{
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struct iforce *iforce = usb_get_intfdata(intf);
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usb_set_intfdata(intf, NULL);
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input_unregister_device(iforce->dev);
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usb_free_urb(iforce->irq);
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usb_free_urb(iforce->out);
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usb_free_urb(iforce->ctrl);
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kfree(iforce);
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}
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static const struct usb_device_id iforce_usb_ids[] = {
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{ USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */
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{ USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */
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{ USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */
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{ USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */
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{ USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */
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{ USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */
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{ USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */
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{ USB_DEVICE(0x061c, 0xc084) }, /* ACT LABS Force RS */
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{ USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */
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{ USB_DEVICE(0x06f8, 0x0003) }, /* Guillemot Jet Leader Force Feedback */
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{ USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */
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{ USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
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struct usb_driver iforce_usb_driver = {
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.name = "iforce",
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.probe = iforce_usb_probe,
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.disconnect = iforce_usb_disconnect,
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.id_table = iforce_usb_ids,
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};
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