Manual merge with Linus

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 000000000000..2c9402dc702b
--- /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);
+        }
+}