From 34008dbfe8c00eca67f97bad484eb5cb03bafe66 Mon Sep 17 00:00:00 2001 From: Matthew Dharm Date: Thu, 28 Jul 2005 14:49:01 -0700 Subject: [PATCH] USB Storage: add support for Maxtor One-Touch button This patch is originally from Nick Sillik, and has been rediffed against the latest tree. This patch adds usability to the OneTouch Button on Maxtor External USB Hard Drives. Using an unusual device entry it declares an extra init function which claims the interrupt endpoint associated with this button. The button is connected to the input system. Signed-off-by: Nick Sillik Signed-off-by: Matthew Dharm Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/onetouch.c | 205 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 205 insertions(+) create mode 100644 drivers/usb/storage/onetouch.c (limited to 'drivers/usb/storage/onetouch.c') diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c new file mode 100644 index 000000000000..07fd29ceb347 --- /dev/null +++ b/drivers/usb/storage/onetouch.c @@ -0,0 +1,205 @@ +/* + * Support for the Maxtor OneTouch USB hard drive's button + * + * Current development and maintenance by: + * Copyright (c) 2005 Nick Sillik + * + * Initial work by: + * Copyright (c) 2003 Erik Thyrén + * + * 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 +#include +#include +#include +#include +#include +#include +#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; + + endpoint = &interface->endpoint[2].desc; + if(!(endpoint->bEndpointAddress & 0x80)) + return -ENODEV; + if((endpoint->bmAttributes & 3) != 3) + 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, 64); + sprintf(onetouch->phys, "%s/input0", path); + + onetouch->dev.name = onetouch->name; + onetouch->dev.phys = onetouch->phys; + + onetouch->dev.id.bustype = BUS_USB; + onetouch->dev.id.vendor = le16_to_cpu(udev->descriptor.idVendor); + onetouch->dev.id.product = le16_to_cpu(udev->descriptor.idProduct); + onetouch->dev.id.version = le16_to_cpu(udev->descriptor.bcdDevice); + + 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 "Maxtor Onetouch %04x:%04x Deregistered\n", + onetouch->dev.id.vendor, onetouch->dev.id.product); + } +} -- cgit v1.2.3 From d6450e19329c85ac4888c185429094236a650928 Mon Sep 17 00:00:00 2001 From: Nick Sillik Date: Wed, 17 Aug 2005 13:37:34 -0400 Subject: [PATCH] USB Storage: code cleanups for onetouch.c As sugested by Alan Stern here are a few code cleanups for onetouch.c: -Check number of endpoints before directly referencing intf->endpoint[2] -Use defined constants instead of magic numbers -Revmove the non-ascii characters from copyright notice -Make registration and deregistration messages more similar Signed-off-by: Nick Sillik Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/onetouch.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) (limited to 'drivers/usb/storage/onetouch.c') diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 07fd29ceb347..2c9402dc702b 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -5,7 +5,7 @@ * Copyright (c) 2005 Nick Sillik * * Initial work by: - * Copyright (c) 2003 Erik Thyrén + * Copyright (c) 2003 Erik Thyren * * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann) * @@ -35,6 +35,8 @@ #include #include #include +#include +#include #include "usb.h" #include "onetouch.h" #include "debug.h" @@ -116,10 +118,14 @@ int onetouch_connect_input(struct us_data *ss) interface = ss->pusb_intf->cur_altsetting; + if (interface->desc.bNumEndpoints != 3) + return -ENODEV; + endpoint = &interface->endpoint[2].desc; - if(!(endpoint->bEndpointAddress & 0x80)) + if(!(endpoint->bEndpointAddress & USB_DIR_IN)) return -ENODEV; - if((endpoint->bmAttributes & 3) != 3) + if((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) + != USB_ENDPOINT_XFER_INT) return -ENODEV; pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress); @@ -128,7 +134,8 @@ int onetouch_connect_input(struct us_data *ss) 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); + onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN, + SLAB_ATOMIC, &onetouch->data_dma); if (!onetouch->data){ kfree(onetouch); return -ENOMEM; @@ -137,7 +144,8 @@ int onetouch_connect_input(struct us_data *ss) 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); + usb_buffer_free(udev, ONETOUCH_PKT_LEN, + onetouch->data, onetouch->data_dma); return -ENODEV; } @@ -152,16 +160,13 @@ int onetouch_connect_input(struct us_data *ss) onetouch->dev.open = usb_onetouch_open; onetouch->dev.close = usb_onetouch_close; - usb_make_path(udev, path, 64); + usb_make_path(udev, path, sizeof(path)); sprintf(onetouch->phys, "%s/input0", path); onetouch->dev.name = onetouch->name; onetouch->dev.phys = onetouch->phys; - onetouch->dev.id.bustype = BUS_USB; - onetouch->dev.id.vendor = le16_to_cpu(udev->descriptor.idVendor); - onetouch->dev.id.product = le16_to_cpu(udev->descriptor.idProduct); - onetouch->dev.id.version = le16_to_cpu(udev->descriptor.bcdDevice); + usb_to_input_id(udev, &onetouch->dev.id); onetouch->dev.dev = &udev->dev; @@ -199,7 +204,7 @@ void onetouch_release_input(void *onetouch_) usb_free_urb(onetouch->irq); usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN, onetouch->data, onetouch->data_dma); - printk(KERN_INFO "Maxtor Onetouch %04x:%04x Deregistered\n", - onetouch->dev.id.vendor, onetouch->dev.id.product); + printk(KERN_INFO "usb-input: deregistering %s\n", + onetouch->dev.name); } } -- cgit v1.2.3