mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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43c1e98c87
This patch makes the needlessly global onetouch_release_input() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
238 lines
6.1 KiB
C
238 lines
6.1 KiB
C
/*
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* Support for the Maxtor OneTouch USB hard drive's button
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*
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* Current development and maintenance by:
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* Copyright (c) 2005 Nick Sillik <n.sillik@temple.edu>
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*
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* Initial work by:
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* Copyright (c) 2003 Erik Thyren <erth7411@student.uu.se>
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*
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* Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann)
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*
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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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*/
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#include <linux/kernel.h>
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#include <linux/input.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/usb/input.h>
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#include "usb.h"
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#include "onetouch.h"
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#include "debug.h"
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static void onetouch_release_input(void *onetouch_);
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struct usb_onetouch {
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char name[128];
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char phys[64];
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struct input_dev *dev; /* input device interface */
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struct usb_device *udev; /* usb device */
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struct urb *irq; /* urb for interrupt in report */
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unsigned char *data; /* input data */
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dma_addr_t data_dma;
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unsigned int is_open:1;
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};
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static void usb_onetouch_irq(struct urb *urb)
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{
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struct usb_onetouch *onetouch = urb->context;
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signed char *data = onetouch->data;
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struct input_dev *dev = onetouch->dev;
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int status = urb->status;
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int retval;
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switch (status) {
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case 0: /* success */
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break;
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case -ECONNRESET: /* unlink */
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case -ENOENT:
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case -ESHUTDOWN:
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return;
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/* -EPIPE: should clear the halt */
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default: /* error */
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goto resubmit;
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}
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input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02);
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input_sync(dev);
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resubmit:
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retval = usb_submit_urb (urb, GFP_ATOMIC);
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if (retval)
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err ("can't resubmit intr, %s-%s/input0, retval %d",
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onetouch->udev->bus->bus_name,
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onetouch->udev->devpath, retval);
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}
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static int usb_onetouch_open(struct input_dev *dev)
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{
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struct usb_onetouch *onetouch = input_get_drvdata(dev);
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onetouch->is_open = 1;
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onetouch->irq->dev = onetouch->udev;
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if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
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err("usb_submit_urb failed");
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return -EIO;
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}
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return 0;
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}
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static void usb_onetouch_close(struct input_dev *dev)
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{
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struct usb_onetouch *onetouch = input_get_drvdata(dev);
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usb_kill_urb(onetouch->irq);
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onetouch->is_open = 0;
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}
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#ifdef CONFIG_PM
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static void usb_onetouch_pm_hook(struct us_data *us, int action)
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{
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struct usb_onetouch *onetouch = (struct usb_onetouch *) us->extra;
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if (onetouch->is_open) {
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switch (action) {
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case US_SUSPEND:
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usb_kill_urb(onetouch->irq);
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break;
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case US_RESUME:
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if (usb_submit_urb(onetouch->irq, GFP_KERNEL) != 0)
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err("usb_submit_urb failed");
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break;
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default:
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break;
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}
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}
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}
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#endif /* CONFIG_PM */
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int onetouch_connect_input(struct us_data *ss)
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{
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struct usb_device *udev = ss->pusb_dev;
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struct usb_host_interface *interface;
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struct usb_endpoint_descriptor *endpoint;
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struct usb_onetouch *onetouch;
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struct input_dev *input_dev;
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int pipe, maxp;
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int error = -ENOMEM;
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interface = ss->pusb_intf->cur_altsetting;
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if (interface->desc.bNumEndpoints != 3)
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return -ENODEV;
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endpoint = &interface->endpoint[2].desc;
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if (!usb_endpoint_is_int_in(endpoint))
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return -ENODEV;
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pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
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maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
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onetouch = kzalloc(sizeof(struct usb_onetouch), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!onetouch || !input_dev)
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goto fail1;
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onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN,
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GFP_ATOMIC, &onetouch->data_dma);
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if (!onetouch->data)
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goto fail1;
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onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);
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if (!onetouch->irq)
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goto fail2;
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onetouch->udev = udev;
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onetouch->dev = input_dev;
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if (udev->manufacturer)
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strlcpy(onetouch->name, udev->manufacturer,
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sizeof(onetouch->name));
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if (udev->product) {
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if (udev->manufacturer)
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strlcat(onetouch->name, " ", sizeof(onetouch->name));
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strlcat(onetouch->name, udev->product, sizeof(onetouch->name));
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}
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if (!strlen(onetouch->name))
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snprintf(onetouch->name, sizeof(onetouch->name),
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"Maxtor Onetouch %04x:%04x",
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le16_to_cpu(udev->descriptor.idVendor),
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le16_to_cpu(udev->descriptor.idProduct));
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usb_make_path(udev, onetouch->phys, sizeof(onetouch->phys));
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strlcat(onetouch->phys, "/input0", sizeof(onetouch->phys));
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input_dev->name = onetouch->name;
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input_dev->phys = onetouch->phys;
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usb_to_input_id(udev, &input_dev->id);
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input_dev->dev.parent = &udev->dev;
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set_bit(EV_KEY, input_dev->evbit);
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set_bit(ONETOUCH_BUTTON, input_dev->keybit);
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clear_bit(0, input_dev->keybit);
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input_set_drvdata(input_dev, onetouch);
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input_dev->open = usb_onetouch_open;
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input_dev->close = usb_onetouch_close;
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usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data,
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(maxp > 8 ? 8 : maxp),
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usb_onetouch_irq, onetouch, endpoint->bInterval);
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onetouch->irq->transfer_dma = onetouch->data_dma;
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onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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ss->extra_destructor = onetouch_release_input;
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ss->extra = onetouch;
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#ifdef CONFIG_PM
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ss->suspend_resume_hook = usb_onetouch_pm_hook;
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#endif
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error = input_register_device(onetouch->dev);
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if (error)
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goto fail3;
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return 0;
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fail3: usb_free_urb(onetouch->irq);
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fail2: usb_buffer_free(udev, ONETOUCH_PKT_LEN,
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onetouch->data, onetouch->data_dma);
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fail1: kfree(onetouch);
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input_free_device(input_dev);
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return error;
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}
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static void onetouch_release_input(void *onetouch_)
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{
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struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_;
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if (onetouch) {
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usb_kill_urb(onetouch->irq);
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input_unregister_device(onetouch->dev);
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usb_free_urb(onetouch->irq);
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usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN,
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onetouch->data, onetouch->data_dma);
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}
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}
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