diff options
Diffstat (limited to 'drivers/usb/input/xpad.c')
-rw-r--r-- | drivers/usb/input/xpad.c | 95 |
1 files changed, 43 insertions, 52 deletions
diff --git a/drivers/usb/input/xpad.c b/drivers/usb/input/xpad.c index 18125e0bffa2..43112f040b6d 100644 --- a/drivers/usb/input/xpad.c +++ b/drivers/usb/input/xpad.c @@ -103,7 +103,7 @@ static struct usb_device_id xpad_table [] = { MODULE_DEVICE_TABLE (usb, xpad_table); struct usb_xpad { - struct input_dev dev; /* input device interface */ + struct input_dev *dev; /* input device interface */ struct usb_device *udev; /* usb device */ struct urb *irq_in; /* urb for interrupt in report */ @@ -125,7 +125,7 @@ struct usb_xpad { static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data, struct pt_regs *regs) { - struct input_dev *dev = &xpad->dev; + struct input_dev *dev = xpad->dev; input_regs(dev, regs); @@ -214,9 +214,9 @@ static void xpad_close (struct input_dev *dev) static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *udev = interface_to_usbdev (intf); - struct usb_xpad *xpad = NULL; + struct usb_xpad *xpad; + struct input_dev *input_dev; struct usb_endpoint_descriptor *ep_irq_in; - char path[64]; int i; for (i = 0; xpad_device[i].idVendor; i++) { @@ -225,89 +225,80 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id break; } - if ((xpad = kmalloc (sizeof(struct usb_xpad), GFP_KERNEL)) == NULL) { - err("cannot allocate memory for new pad"); - return -ENOMEM; - } - memset(xpad, 0, sizeof(struct usb_xpad)); + xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!xpad || !input_dev) + goto fail1; xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN, SLAB_ATOMIC, &xpad->idata_dma); - if (!xpad->idata) { - kfree(xpad); - return -ENOMEM; - } + if (!xpad->idata) + goto fail1; xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL); - if (!xpad->irq_in) { - err("cannot allocate memory for new pad irq urb"); - usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); - kfree(xpad); - return -ENOMEM; - } - - ep_irq_in = &intf->cur_altsetting->endpoint[0].desc; - - usb_fill_int_urb(xpad->irq_in, udev, - usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress), - xpad->idata, XPAD_PKT_LEN, xpad_irq_in, - xpad, ep_irq_in->bInterval); - xpad->irq_in->transfer_dma = xpad->idata_dma; - xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + if (!xpad->irq_in) + goto fail2; xpad->udev = udev; + xpad->dev = input_dev; + usb_make_path(udev, xpad->phys, sizeof(xpad->phys)); + strlcat(xpad->phys, "/input0", sizeof(xpad->phys)); - usb_to_input_id(udev, &xpad->dev.id); - xpad->dev.dev = &intf->dev; - xpad->dev.private = xpad; - xpad->dev.name = xpad_device[i].name; - xpad->dev.phys = xpad->phys; - xpad->dev.open = xpad_open; - xpad->dev.close = xpad_close; - - usb_make_path(udev, path, 64); - snprintf(xpad->phys, 64, "%s/input0", path); + input_dev->name = xpad_device[i].name; + input_dev->phys = xpad->phys; + usb_to_input_id(udev, &input_dev->id); + input_dev->cdev.dev = &intf->dev; + input_dev->private = xpad; + input_dev->open = xpad_open; + input_dev->close = xpad_close; - xpad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); + input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); for (i = 0; xpad_btn[i] >= 0; i++) - set_bit(xpad_btn[i], xpad->dev.keybit); + set_bit(xpad_btn[i], input_dev->keybit); for (i = 0; xpad_abs[i] >= 0; i++) { signed short t = xpad_abs[i]; - set_bit(t, xpad->dev.absbit); + set_bit(t, input_dev->absbit); switch (t) { case ABS_X: case ABS_Y: case ABS_RX: case ABS_RY: /* the two sticks */ - xpad->dev.absmax[t] = 32767; - xpad->dev.absmin[t] = -32768; - xpad->dev.absflat[t] = 128; - xpad->dev.absfuzz[t] = 16; + input_set_abs_params(input_dev, t, -32768, 32767, 16, 128); break; case ABS_Z: case ABS_RZ: /* the triggers */ - xpad->dev.absmax[t] = 255; - xpad->dev.absmin[t] = 0; + input_set_abs_params(input_dev, t, 0, 255, 0, 0); break; case ABS_HAT0X: case ABS_HAT0Y: /* the d-pad */ - xpad->dev.absmax[t] = 1; - xpad->dev.absmin[t] = -1; + input_set_abs_params(input_dev, t, -1, 1, 0, 0); break; } } - input_register_device(&xpad->dev); + ep_irq_in = &intf->cur_altsetting->endpoint[0].desc; + usb_fill_int_urb(xpad->irq_in, udev, + usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress), + xpad->idata, XPAD_PKT_LEN, xpad_irq_in, + xpad, ep_irq_in->bInterval); + xpad->irq_in->transfer_dma = xpad->idata_dma; + xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - printk(KERN_INFO "input: %s on %s", xpad->dev.name, path); + input_register_device(xpad->dev); usb_set_intfdata(intf, xpad); return 0; + +fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); +fail1: input_free_device(input_dev); + kfree(xpad); + return -ENOMEM; + } static void xpad_disconnect(struct usb_interface *intf) @@ -317,7 +308,7 @@ static void xpad_disconnect(struct usb_interface *intf) usb_set_intfdata(intf, NULL); if (xpad) { usb_kill_urb(xpad->irq_in); - input_unregister_device(&xpad->dev); + input_unregister_device(xpad->dev); usb_free_urb(xpad->irq_in); usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); kfree(xpad); |