Merge gregkh@master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6

1 files changed, 210 insertions, 0 deletions

diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
new file mode 100644
index 00000000000..2c9402dc702
--- /dev/null
+++ b/drivers/usb/storage/onetouch.c
@@ -0,0 +1,210 @@
+/*
+ * Support for the Maxtor OneTouch USB hard drive's button
+ *
+ * Current development and maintenance by:
+ *	Copyright (c) 2005 Nick Sillik <n.sillik@temple.edu>
+ *
+ * Initial work by:
+ * 	Copyright (c) 2003 Erik Thyren <erth7411@student.uu.se>
+ *
+ * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann)
+ *
+ */
+
+/*
+ * 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
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb_ch9.h>
+#include <linux/usb_input.h>
+#include "usb.h"
+#include "onetouch.h"
+#include "debug.h"
+
+void onetouch_release_input(void *onetouch_);
+
+struct usb_onetouch {
+	char name[128];
+	char phys[64];
+	struct input_dev dev;	/* input device interface */
+	struct usb_device *udev;	/* usb device */
+
+	struct urb *irq;	/* urb for interrupt in report */
+	unsigned char *data;	/* input data */
+	dma_addr_t data_dma;
+};
+
+static void usb_onetouch_irq(struct urb *urb, struct pt_regs *regs)
+{
+	struct usb_onetouch *onetouch = urb->context;
+	signed char *data = onetouch->data;
+	struct input_dev *dev = &onetouch->dev;
+	int status;
+
+	switch (urb->status) {
+	case 0:			/* success */
+		break;
+	case -ECONNRESET:	/* unlink */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	/* -EPIPE:  should clear the halt */
+	default:		/* error */
+		goto resubmit;
+	}
+
+	input_regs(dev, regs);
+
+	input_report_key(&onetouch->dev, ONETOUCH_BUTTON,
+			 data[0] & 0x02);
+
+	input_sync(dev);
+resubmit:
+	status = usb_submit_urb (urb, SLAB_ATOMIC);
+	if (status)
+		err ("can't resubmit intr, %s-%s/input0, status %d",
+			onetouch->udev->bus->bus_name,
+			onetouch->udev->devpath, status);
+}
+
+static int usb_onetouch_open(struct input_dev *dev)
+{
+	struct usb_onetouch *onetouch = dev->private;
+
+	onetouch->irq->dev = onetouch->udev;
+	if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
+		err("usb_submit_urb failed");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static void usb_onetouch_close(struct input_dev *dev)
+{
+	struct usb_onetouch *onetouch = dev->private;
+
+	usb_kill_urb(onetouch->irq);
+}
+
+int onetouch_connect_input(struct us_data *ss)
+{
+	struct usb_device *udev = ss->pusb_dev;
+	struct usb_host_interface *interface;
+	struct usb_endpoint_descriptor *endpoint;
+	struct usb_onetouch *onetouch;
+	int pipe, maxp;
+	char path[64];
+
+	interface = ss->pusb_intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints != 3)
+		return -ENODEV;
+
+	endpoint = &interface->endpoint[2].desc;
+	if(!(endpoint->bEndpointAddress & USB_DIR_IN))
+		return -ENODEV;
+	if((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+			!= USB_ENDPOINT_XFER_INT)
+		return -ENODEV;
+
+	pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+	maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+
+	if (!(onetouch = kcalloc(1, sizeof(struct usb_onetouch), GFP_KERNEL)))
+		return -ENOMEM;
+
+	onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN,
+					  SLAB_ATOMIC, &onetouch->data_dma);
+	if (!onetouch->data){
+		kfree(onetouch);
+		return -ENOMEM;
+	}
+
+	onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);
+	if (!onetouch->irq){
+		kfree(onetouch);
+		usb_buffer_free(udev, ONETOUCH_PKT_LEN,
+				onetouch->data, onetouch->data_dma);
+		return -ENODEV;
+	}
+
+
+	onetouch->udev = udev;
+
+	set_bit(EV_KEY, onetouch->dev.evbit);
+	set_bit(ONETOUCH_BUTTON, onetouch->dev.keybit);
+	clear_bit(0, onetouch->dev.keybit);
+
+	onetouch->dev.private = onetouch;
+	onetouch->dev.open = usb_onetouch_open;
+	onetouch->dev.close = usb_onetouch_close;
+
+	usb_make_path(udev, path, sizeof(path));
+	sprintf(onetouch->phys, "%s/input0", path);
+
+	onetouch->dev.name = onetouch->name;
+	onetouch->dev.phys = onetouch->phys;
+
+	usb_to_input_id(udev, &onetouch->dev.id);
+
+	onetouch->dev.dev = &udev->dev;
+
+	if (udev->manufacturer)
+		strcat(onetouch->name, udev->manufacturer);
+	if (udev->product)
+		sprintf(onetouch->name, "%s %s", onetouch->name,
+			udev->product);
+	if (!strlen(onetouch->name))
+		sprintf(onetouch->name, "Maxtor Onetouch %04x:%04x",
+			onetouch->dev.id.vendor, onetouch->dev.id.product);
+
+	usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data,
+			 (maxp > 8 ? 8 : maxp),
+			 usb_onetouch_irq, onetouch, endpoint->bInterval);
+	onetouch->irq->transfer_dma = onetouch->data_dma;
+	onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	ss->extra_destructor = onetouch_release_input;
+	ss->extra = onetouch;
+
+	input_register_device(&onetouch->dev);
+	printk(KERN_INFO "usb-input: %s on %s\n", onetouch->dev.name, path);
+
+	return 0;
+}
+
+void onetouch_release_input(void *onetouch_)
+{
+	struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_;
+
+	if (onetouch) {
+		usb_kill_urb(onetouch->irq);
+		input_unregister_device(&onetouch->dev);
+		usb_free_urb(onetouch->irq);
+		usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN,
+				onetouch->data, onetouch->data_dma);
+		printk(KERN_INFO "usb-input: deregistering %s\n",
+				onetouch->dev.name);
+	}
+}