991 lines
29 KiB
C
991 lines
29 KiB
C
/*
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* USB ATI Remote support
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*
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* Copyright (c) 2011, 2012 Anssi Hannula <anssi.hannula@iki.fi>
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* Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net>
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* Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev
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*
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* This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including
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* porting to the 2.6 kernel interfaces, along with other modification
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* to better match the style of the existing usb/input drivers. However, the
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* protocol and hardware handling is essentially unchanged from 2.1.1.
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*
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* The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by
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* Vojtech Pavlik.
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*
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* Changes:
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*
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* Feb 2004: Torrey Hoffman <thoffman@arnor.net>
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* Version 2.2.0
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* Jun 2004: Torrey Hoffman <thoffman@arnor.net>
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* Version 2.2.1
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* Added key repeat support contributed by:
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* Vincent Vanackere <vanackere@lif.univ-mrs.fr>
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* Added support for the "Lola" remote contributed by:
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* Seth Cohn <sethcohn@yahoo.com>
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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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*
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* Hardware & software notes
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*
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* These remote controls are distributed by ATI as part of their
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* "All-In-Wonder" video card packages. The receiver self-identifies as a
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* "USB Receiver" with manufacturer "X10 Wireless Technology Inc".
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*
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* The "Lola" remote is available from X10. See:
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* http://www.x10.com/products/lola_sg1.htm
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* The Lola is similar to the ATI remote but has no mouse support, and slightly
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* different keys.
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*
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* It is possible to use multiple receivers and remotes on multiple computers
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* simultaneously by configuring them to use specific channels.
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*
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* The RF protocol used by the remote supports 16 distinct channels, 1 to 16.
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* Actually, it may even support more, at least in some revisions of the
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* hardware.
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*
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* Each remote can be configured to transmit on one channel as follows:
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* - Press and hold the "hand icon" button.
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* - When the red LED starts to blink, let go of the "hand icon" button.
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* - When it stops blinking, input the channel code as two digits, from 01
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* to 16, and press the hand icon again.
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*
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* The timing can be a little tricky. Try loading the module with debug=1
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* to have the kernel print out messages about the remote control number
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* and mask. Note: debugging prints remote numbers as zero-based hexadecimal.
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*
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* The driver has a "channel_mask" parameter. This bitmask specifies which
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* channels will be ignored by the module. To mask out channels, just add
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* all the 2^channel_number values together.
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*
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* For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote
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* ignore signals coming from remote controls transmitting on channel 4, but
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* accept all other channels.
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*
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* Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be
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* ignored.
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*
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* The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this
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* parameter are unused.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/errno.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/mutex.h>
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#include <linux/usb/input.h>
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#include <linux/wait.h>
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#include <linux/jiffies.h>
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#include <media/rc-core.h>
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/*
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* Module and Version Information, Module Parameters
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*/
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#define ATI_REMOTE_VENDOR_ID 0x0bc7
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#define LOLA_REMOTE_PRODUCT_ID 0x0002
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#define LOLA2_REMOTE_PRODUCT_ID 0x0003
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#define ATI_REMOTE_PRODUCT_ID 0x0004
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#define NVIDIA_REMOTE_PRODUCT_ID 0x0005
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#define MEDION_REMOTE_PRODUCT_ID 0x0006
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#define FIREFLY_REMOTE_PRODUCT_ID 0x0008
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#define DRIVER_VERSION "2.2.1"
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#define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>"
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#define DRIVER_DESC "ATI/X10 RF USB Remote Control"
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#define NAME_BUFSIZE 80 /* size of product name, path buffers */
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#define DATA_BUFSIZE 63 /* size of URB data buffers */
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/*
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* Duplicate event filtering time.
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* Sequential, identical KIND_FILTERED inputs with less than
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* FILTER_TIME milliseconds between them are considered as repeat
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* events. The hardware generates 5 events for the first keypress
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* and we have to take this into account for an accurate repeat
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* behaviour.
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*/
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#define FILTER_TIME 60 /* msec */
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#define REPEAT_DELAY 500 /* msec */
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static unsigned long channel_mask;
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module_param(channel_mask, ulong, 0644);
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MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore");
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
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static int repeat_filter = FILTER_TIME;
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module_param(repeat_filter, int, 0644);
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MODULE_PARM_DESC(repeat_filter, "Repeat filter time, default = 60 msec");
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static int repeat_delay = REPEAT_DELAY;
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module_param(repeat_delay, int, 0644);
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MODULE_PARM_DESC(repeat_delay, "Delay before sending repeats, default = 500 msec");
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static bool mouse = true;
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module_param(mouse, bool, 0444);
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MODULE_PARM_DESC(mouse, "Enable mouse device, default = yes");
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#define dbginfo(dev, format, arg...) \
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do { if (debug) dev_info(dev , format , ## arg); } while (0)
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#undef err
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#define err(format, arg...) printk(KERN_ERR format , ## arg)
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struct ati_receiver_type {
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/* either default_keymap or get_default_keymap should be set */
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const char *default_keymap;
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const char *(*get_default_keymap)(struct usb_interface *interface);
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};
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static const char *get_medion_keymap(struct usb_interface *interface)
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{
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struct usb_device *udev = interface_to_usbdev(interface);
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/*
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* There are many different Medion remotes shipped with a receiver
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* with the same usb id, but the receivers have subtle differences
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* in the USB descriptors allowing us to detect them.
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*/
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if (udev->manufacturer && udev->product) {
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if (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP) {
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if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc")
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&& !strcmp(udev->product, "USB Receiver"))
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return RC_MAP_MEDION_X10_DIGITAINER;
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if (!strcmp(udev->manufacturer, "X10 WTI")
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&& !strcmp(udev->product, "RF receiver"))
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return RC_MAP_MEDION_X10_OR2X;
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} else {
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if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc")
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&& !strcmp(udev->product, "USB Receiver"))
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return RC_MAP_MEDION_X10;
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}
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}
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dev_info(&interface->dev,
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"Unknown Medion X10 receiver, using default ati_remote Medion keymap\n");
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return RC_MAP_MEDION_X10;
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}
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static const struct ati_receiver_type type_ati = {
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.default_keymap = RC_MAP_ATI_X10
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};
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static const struct ati_receiver_type type_medion = {
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.get_default_keymap = get_medion_keymap
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};
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static const struct ati_receiver_type type_firefly = {
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.default_keymap = RC_MAP_SNAPSTREAM_FIREFLY
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};
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static struct usb_device_id ati_remote_table[] = {
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{
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USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID),
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.driver_info = (unsigned long)&type_ati
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},
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{
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USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA2_REMOTE_PRODUCT_ID),
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.driver_info = (unsigned long)&type_ati
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},
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{
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USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID),
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.driver_info = (unsigned long)&type_ati
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},
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{
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USB_DEVICE(ATI_REMOTE_VENDOR_ID, NVIDIA_REMOTE_PRODUCT_ID),
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.driver_info = (unsigned long)&type_ati
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},
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{
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USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID),
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.driver_info = (unsigned long)&type_medion
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},
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{
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USB_DEVICE(ATI_REMOTE_VENDOR_ID, FIREFLY_REMOTE_PRODUCT_ID),
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.driver_info = (unsigned long)&type_firefly
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},
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{} /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, ati_remote_table);
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/* Get hi and low bytes of a 16-bits int */
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#define HI(a) ((unsigned char)((a) >> 8))
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#define LO(a) ((unsigned char)((a) & 0xff))
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#define SEND_FLAG_IN_PROGRESS 1
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#define SEND_FLAG_COMPLETE 2
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/* Device initialization strings */
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static char init1[] = { 0x01, 0x00, 0x20, 0x14 };
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static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 };
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struct ati_remote {
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struct input_dev *idev;
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struct rc_dev *rdev;
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struct usb_device *udev;
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struct usb_interface *interface;
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struct urb *irq_urb;
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struct urb *out_urb;
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struct usb_endpoint_descriptor *endpoint_in;
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struct usb_endpoint_descriptor *endpoint_out;
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unsigned char *inbuf;
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unsigned char *outbuf;
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dma_addr_t inbuf_dma;
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dma_addr_t outbuf_dma;
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unsigned char old_data; /* Detect duplicate events */
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unsigned long old_jiffies;
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unsigned long acc_jiffies; /* handle acceleration */
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unsigned long first_jiffies;
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unsigned int repeat_count;
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char rc_name[NAME_BUFSIZE];
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char rc_phys[NAME_BUFSIZE];
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char mouse_name[NAME_BUFSIZE];
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char mouse_phys[NAME_BUFSIZE];
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wait_queue_head_t wait;
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int send_flags;
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int users; /* 0-2, users are rc and input */
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struct mutex open_mutex;
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};
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/* "Kinds" of messages sent from the hardware to the driver. */
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#define KIND_END 0
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#define KIND_LITERAL 1 /* Simply pass to input system as EV_KEY */
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#define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */
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#define KIND_ACCEL 3 /* Translate to EV_REL mouse-move events */
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/* Translation table from hardware messages to input events. */
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static const struct {
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unsigned char kind;
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unsigned char data; /* Raw key code from remote */
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unsigned short code; /* Input layer translation */
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} ati_remote_tbl[] = {
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/* Directional control pad axes. Code is xxyy */
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{KIND_ACCEL, 0x70, 0xff00}, /* left */
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{KIND_ACCEL, 0x71, 0x0100}, /* right */
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{KIND_ACCEL, 0x72, 0x00ff}, /* up */
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{KIND_ACCEL, 0x73, 0x0001}, /* down */
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/* Directional control pad diagonals */
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{KIND_ACCEL, 0x74, 0xffff}, /* left up */
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{KIND_ACCEL, 0x75, 0x01ff}, /* right up */
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{KIND_ACCEL, 0x77, 0xff01}, /* left down */
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{KIND_ACCEL, 0x76, 0x0101}, /* right down */
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/* "Mouse button" buttons. The code below uses the fact that the
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* lsbit of the raw code is a down/up indicator. */
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{KIND_LITERAL, 0x78, BTN_LEFT}, /* left btn down */
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{KIND_LITERAL, 0x79, BTN_LEFT}, /* left btn up */
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{KIND_LITERAL, 0x7c, BTN_RIGHT},/* right btn down */
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{KIND_LITERAL, 0x7d, BTN_RIGHT},/* right btn up */
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/* Artificial "doubleclick" events are generated by the hardware.
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* They are mapped to the "side" and "extra" mouse buttons here. */
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{KIND_FILTERED, 0x7a, BTN_SIDE}, /* left dblclick */
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{KIND_FILTERED, 0x7e, BTN_EXTRA},/* right dblclick */
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/* Non-mouse events are handled by rc-core */
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{KIND_END, 0x00, 0}
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};
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/*
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* ati_remote_dump_input
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*/
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static void ati_remote_dump(struct device *dev, unsigned char *data,
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unsigned int len)
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{
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if (len == 1) {
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if (data[0] != (unsigned char)0xff && data[0] != 0x00)
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dev_warn(dev, "Weird byte 0x%02x\n", data[0]);
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} else if (len == 4)
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dev_warn(dev, "Weird key %*ph\n", 4, data);
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else
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dev_warn(dev, "Weird data, len=%d %*ph ...\n", len, 6, data);
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}
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/*
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* ati_remote_open
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*/
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static int ati_remote_open(struct ati_remote *ati_remote)
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{
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int err = 0;
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mutex_lock(&ati_remote->open_mutex);
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if (ati_remote->users++ != 0)
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goto out; /* one was already active */
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/* On first open, submit the read urb which was set up previously. */
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ati_remote->irq_urb->dev = ati_remote->udev;
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if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) {
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dev_err(&ati_remote->interface->dev,
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"%s: usb_submit_urb failed!\n", __func__);
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err = -EIO;
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}
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out: mutex_unlock(&ati_remote->open_mutex);
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return err;
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}
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/*
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* ati_remote_close
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*/
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static void ati_remote_close(struct ati_remote *ati_remote)
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{
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mutex_lock(&ati_remote->open_mutex);
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if (--ati_remote->users == 0)
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usb_kill_urb(ati_remote->irq_urb);
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mutex_unlock(&ati_remote->open_mutex);
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}
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static int ati_remote_input_open(struct input_dev *inputdev)
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{
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struct ati_remote *ati_remote = input_get_drvdata(inputdev);
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return ati_remote_open(ati_remote);
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}
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static void ati_remote_input_close(struct input_dev *inputdev)
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{
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struct ati_remote *ati_remote = input_get_drvdata(inputdev);
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ati_remote_close(ati_remote);
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}
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static int ati_remote_rc_open(struct rc_dev *rdev)
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{
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struct ati_remote *ati_remote = rdev->priv;
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return ati_remote_open(ati_remote);
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}
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static void ati_remote_rc_close(struct rc_dev *rdev)
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{
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struct ati_remote *ati_remote = rdev->priv;
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ati_remote_close(ati_remote);
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}
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/*
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* ati_remote_irq_out
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*/
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static void ati_remote_irq_out(struct urb *urb)
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{
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struct ati_remote *ati_remote = urb->context;
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if (urb->status) {
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dev_dbg(&ati_remote->interface->dev, "%s: status %d\n",
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__func__, urb->status);
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return;
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}
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ati_remote->send_flags |= SEND_FLAG_COMPLETE;
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wmb();
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wake_up(&ati_remote->wait);
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}
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/*
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* ati_remote_sendpacket
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*
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* Used to send device initialization strings
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*/
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static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd,
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unsigned char *data)
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{
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int retval = 0;
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/* Set up out_urb */
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memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd));
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((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd);
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ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1;
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ati_remote->out_urb->dev = ati_remote->udev;
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ati_remote->send_flags = SEND_FLAG_IN_PROGRESS;
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retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC);
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if (retval) {
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dev_dbg(&ati_remote->interface->dev,
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"sendpacket: usb_submit_urb failed: %d\n", retval);
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return retval;
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}
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wait_event_timeout(ati_remote->wait,
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((ati_remote->out_urb->status != -EINPROGRESS) ||
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(ati_remote->send_flags & SEND_FLAG_COMPLETE)),
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HZ);
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usb_kill_urb(ati_remote->out_urb);
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return retval;
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}
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struct accel_times {
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const char value;
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unsigned int msecs;
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};
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static const struct accel_times accel[] = {
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{ 1, 125 },
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{ 2, 250 },
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{ 4, 500 },
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{ 6, 1000 },
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{ 9, 1500 },
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{ 13, 2000 },
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{ 20, 0 },
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};
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/*
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* ati_remote_compute_accel
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*
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* Implements acceleration curve for directional control pad
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* If elapsed time since last event is > 1/4 second, user "stopped",
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* so reset acceleration. Otherwise, user is probably holding the control
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* pad down, so we increase acceleration, ramping up over two seconds to
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* a maximum speed.
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*/
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static int ati_remote_compute_accel(struct ati_remote *ati_remote)
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{
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unsigned long now = jiffies, reset_time;
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int i;
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reset_time = msecs_to_jiffies(250);
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if (time_after(now, ati_remote->old_jiffies + reset_time)) {
|
|
ati_remote->acc_jiffies = now;
|
|
return 1;
|
|
}
|
|
for (i = 0; i < ARRAY_SIZE(accel) - 1; i++) {
|
|
unsigned long timeout = msecs_to_jiffies(accel[i].msecs);
|
|
|
|
if (time_before(now, ati_remote->acc_jiffies + timeout))
|
|
return accel[i].value;
|
|
}
|
|
return accel[i].value;
|
|
}
|
|
|
|
/*
|
|
* ati_remote_report_input
|
|
*/
|
|
static void ati_remote_input_report(struct urb *urb)
|
|
{
|
|
struct ati_remote *ati_remote = urb->context;
|
|
unsigned char *data= ati_remote->inbuf;
|
|
struct input_dev *dev = ati_remote->idev;
|
|
int index = -1;
|
|
int remote_num;
|
|
unsigned char scancode;
|
|
u32 wheel_keycode = KEY_RESERVED;
|
|
int i;
|
|
|
|
/*
|
|
* data[0] = 0x14
|
|
* data[1] = data[2] + data[3] + 0xd5 (a checksum byte)
|
|
* data[2] = the key code (with toggle bit in MSB with some models)
|
|
* data[3] = channel << 4 (the low 4 bits must be zero)
|
|
*/
|
|
|
|
/* Deal with strange looking inputs */
|
|
if ( urb->actual_length != 4 || data[0] != 0x14 ||
|
|
data[1] != (unsigned char)(data[2] + data[3] + 0xD5) ||
|
|
(data[3] & 0x0f) != 0x00) {
|
|
ati_remote_dump(&urb->dev->dev, data, urb->actual_length);
|
|
return;
|
|
}
|
|
|
|
if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) {
|
|
dbginfo(&ati_remote->interface->dev,
|
|
"wrong checksum in input: %*ph\n", 4, data);
|
|
return;
|
|
}
|
|
|
|
/* Mask unwanted remote channels. */
|
|
/* note: remote_num is 0-based, channel 1 on remote == 0 here */
|
|
remote_num = (data[3] >> 4) & 0x0f;
|
|
if (channel_mask & (1 << (remote_num + 1))) {
|
|
dbginfo(&ati_remote->interface->dev,
|
|
"Masked input from channel 0x%02x: data %02x, "
|
|
"mask= 0x%02lx\n",
|
|
remote_num, data[2], channel_mask);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* MSB is a toggle code, though only used by some devices
|
|
* (e.g. SnapStream Firefly)
|
|
*/
|
|
scancode = data[2] & 0x7f;
|
|
|
|
dbginfo(&ati_remote->interface->dev,
|
|
"channel 0x%02x; key data %02x, scancode %02x\n",
|
|
remote_num, data[2], scancode);
|
|
|
|
if (scancode >= 0x70) {
|
|
/*
|
|
* This is either a mouse or scrollwheel event, depending on
|
|
* the remote/keymap.
|
|
* Get the keycode assigned to scancode 0x78/0x70. If it is
|
|
* set, assume this is a scrollwheel up/down event.
|
|
*/
|
|
wheel_keycode = rc_g_keycode_from_table(ati_remote->rdev,
|
|
scancode & 0x78);
|
|
|
|
if (wheel_keycode == KEY_RESERVED) {
|
|
/* scrollwheel was not mapped, assume mouse */
|
|
|
|
/* Look up event code index in the mouse translation
|
|
* table.
|
|
*/
|
|
for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) {
|
|
if (scancode == ati_remote_tbl[i].data) {
|
|
index = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) {
|
|
/*
|
|
* The lsbit of the raw key code is a down/up flag.
|
|
* Invert it to match the input layer's conventions.
|
|
*/
|
|
input_event(dev, EV_KEY, ati_remote_tbl[index].code,
|
|
!(data[2] & 1));
|
|
|
|
ati_remote->old_jiffies = jiffies;
|
|
|
|
} else if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) {
|
|
unsigned long now = jiffies;
|
|
|
|
/* Filter duplicate events which happen "too close" together. */
|
|
if (ati_remote->old_data == data[2] &&
|
|
time_before(now, ati_remote->old_jiffies +
|
|
msecs_to_jiffies(repeat_filter))) {
|
|
ati_remote->repeat_count++;
|
|
} else {
|
|
ati_remote->repeat_count = 0;
|
|
ati_remote->first_jiffies = now;
|
|
}
|
|
|
|
ati_remote->old_jiffies = now;
|
|
|
|
/* Ensure we skip at least the 4 first duplicate events
|
|
* (generated by a single keypress), and continue skipping
|
|
* until repeat_delay msecs have passed.
|
|
*/
|
|
if (ati_remote->repeat_count > 0 &&
|
|
(ati_remote->repeat_count < 5 ||
|
|
time_before(now, ati_remote->first_jiffies +
|
|
msecs_to_jiffies(repeat_delay))))
|
|
return;
|
|
|
|
if (index >= 0) {
|
|
input_event(dev, EV_KEY, ati_remote_tbl[index].code, 1);
|
|
input_event(dev, EV_KEY, ati_remote_tbl[index].code, 0);
|
|
} else {
|
|
/* Not a mouse event, hand it to rc-core. */
|
|
int count = 1;
|
|
|
|
if (wheel_keycode != KEY_RESERVED) {
|
|
/*
|
|
* This is a scrollwheel event, send the
|
|
* scroll up (0x78) / down (0x70) scancode
|
|
* repeatedly as many times as indicated by
|
|
* rest of the scancode.
|
|
*/
|
|
count = (scancode & 0x07) + 1;
|
|
scancode &= 0x78;
|
|
}
|
|
|
|
while (count--) {
|
|
/*
|
|
* We don't use the rc-core repeat handling yet as
|
|
* it would cause ghost repeats which would be a
|
|
* regression for this driver.
|
|
*/
|
|
rc_keydown_notimeout(ati_remote->rdev, RC_TYPE_OTHER,
|
|
scancode, data[2]);
|
|
rc_keyup(ati_remote->rdev);
|
|
}
|
|
goto nosync;
|
|
}
|
|
|
|
} else if (ati_remote_tbl[index].kind == KIND_ACCEL) {
|
|
signed char dx = ati_remote_tbl[index].code >> 8;
|
|
signed char dy = ati_remote_tbl[index].code & 255;
|
|
|
|
/*
|
|
* Other event kinds are from the directional control pad, and
|
|
* have an acceleration factor applied to them. Without this
|
|
* acceleration, the control pad is mostly unusable.
|
|
*/
|
|
int acc = ati_remote_compute_accel(ati_remote);
|
|
if (dx)
|
|
input_report_rel(dev, REL_X, dx * acc);
|
|
if (dy)
|
|
input_report_rel(dev, REL_Y, dy * acc);
|
|
ati_remote->old_jiffies = jiffies;
|
|
|
|
} else {
|
|
dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n",
|
|
ati_remote_tbl[index].kind);
|
|
return;
|
|
}
|
|
input_sync(dev);
|
|
nosync:
|
|
ati_remote->old_data = data[2];
|
|
}
|
|
|
|
/*
|
|
* ati_remote_irq_in
|
|
*/
|
|
static void ati_remote_irq_in(struct urb *urb)
|
|
{
|
|
struct ati_remote *ati_remote = urb->context;
|
|
int retval;
|
|
|
|
switch (urb->status) {
|
|
case 0: /* success */
|
|
ati_remote_input_report(urb);
|
|
break;
|
|
case -ECONNRESET: /* unlink */
|
|
case -ENOENT:
|
|
case -ESHUTDOWN:
|
|
dev_dbg(&ati_remote->interface->dev,
|
|
"%s: urb error status, unlink?\n",
|
|
__func__);
|
|
return;
|
|
default: /* error */
|
|
dev_dbg(&ati_remote->interface->dev,
|
|
"%s: Nonzero urb status %d\n",
|
|
__func__, urb->status);
|
|
}
|
|
|
|
retval = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (retval)
|
|
dev_err(&ati_remote->interface->dev,
|
|
"%s: usb_submit_urb()=%d\n",
|
|
__func__, retval);
|
|
}
|
|
|
|
/*
|
|
* ati_remote_alloc_buffers
|
|
*/
|
|
static int ati_remote_alloc_buffers(struct usb_device *udev,
|
|
struct ati_remote *ati_remote)
|
|
{
|
|
ati_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
|
|
&ati_remote->inbuf_dma);
|
|
if (!ati_remote->inbuf)
|
|
return -1;
|
|
|
|
ati_remote->outbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
|
|
&ati_remote->outbuf_dma);
|
|
if (!ati_remote->outbuf)
|
|
return -1;
|
|
|
|
ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!ati_remote->irq_urb)
|
|
return -1;
|
|
|
|
ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!ati_remote->out_urb)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ati_remote_free_buffers
|
|
*/
|
|
static void ati_remote_free_buffers(struct ati_remote *ati_remote)
|
|
{
|
|
usb_free_urb(ati_remote->irq_urb);
|
|
usb_free_urb(ati_remote->out_urb);
|
|
|
|
usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
|
|
ati_remote->inbuf, ati_remote->inbuf_dma);
|
|
|
|
usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
|
|
ati_remote->outbuf, ati_remote->outbuf_dma);
|
|
}
|
|
|
|
static void ati_remote_input_init(struct ati_remote *ati_remote)
|
|
{
|
|
struct input_dev *idev = ati_remote->idev;
|
|
int i;
|
|
|
|
idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
|
|
idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
|
|
BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA);
|
|
idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
|
|
for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++)
|
|
if (ati_remote_tbl[i].kind == KIND_LITERAL ||
|
|
ati_remote_tbl[i].kind == KIND_FILTERED)
|
|
__set_bit(ati_remote_tbl[i].code, idev->keybit);
|
|
|
|
input_set_drvdata(idev, ati_remote);
|
|
|
|
idev->open = ati_remote_input_open;
|
|
idev->close = ati_remote_input_close;
|
|
|
|
idev->name = ati_remote->mouse_name;
|
|
idev->phys = ati_remote->mouse_phys;
|
|
|
|
usb_to_input_id(ati_remote->udev, &idev->id);
|
|
idev->dev.parent = &ati_remote->interface->dev;
|
|
}
|
|
|
|
static void ati_remote_rc_init(struct ati_remote *ati_remote)
|
|
{
|
|
struct rc_dev *rdev = ati_remote->rdev;
|
|
|
|
rdev->priv = ati_remote;
|
|
rdev->driver_type = RC_DRIVER_SCANCODE;
|
|
rdev->allowed_protocols = RC_BIT_OTHER;
|
|
rdev->driver_name = "ati_remote";
|
|
|
|
rdev->open = ati_remote_rc_open;
|
|
rdev->close = ati_remote_rc_close;
|
|
|
|
rdev->input_name = ati_remote->rc_name;
|
|
rdev->input_phys = ati_remote->rc_phys;
|
|
|
|
usb_to_input_id(ati_remote->udev, &rdev->input_id);
|
|
rdev->dev.parent = &ati_remote->interface->dev;
|
|
}
|
|
|
|
static int ati_remote_initialize(struct ati_remote *ati_remote)
|
|
{
|
|
struct usb_device *udev = ati_remote->udev;
|
|
int pipe, maxp;
|
|
|
|
init_waitqueue_head(&ati_remote->wait);
|
|
|
|
/* Set up irq_urb */
|
|
pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress);
|
|
maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
|
|
maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
|
|
|
|
usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf,
|
|
maxp, ati_remote_irq_in, ati_remote,
|
|
ati_remote->endpoint_in->bInterval);
|
|
ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma;
|
|
ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
/* Set up out_urb */
|
|
pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress);
|
|
maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
|
|
maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
|
|
|
|
usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf,
|
|
maxp, ati_remote_irq_out, ati_remote,
|
|
ati_remote->endpoint_out->bInterval);
|
|
ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma;
|
|
ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
/* send initialization strings */
|
|
if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) ||
|
|
(ati_remote_sendpacket(ati_remote, 0x8007, init2))) {
|
|
dev_err(&ati_remote->interface->dev,
|
|
"Initializing ati_remote hardware failed.\n");
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ati_remote_probe
|
|
*/
|
|
static int ati_remote_probe(struct usb_interface *interface,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *udev = interface_to_usbdev(interface);
|
|
struct usb_host_interface *iface_host = interface->cur_altsetting;
|
|
struct usb_endpoint_descriptor *endpoint_in, *endpoint_out;
|
|
struct ati_receiver_type *type = (struct ati_receiver_type *)id->driver_info;
|
|
struct ati_remote *ati_remote;
|
|
struct input_dev *input_dev;
|
|
struct rc_dev *rc_dev;
|
|
int err = -ENOMEM;
|
|
|
|
if (iface_host->desc.bNumEndpoints != 2) {
|
|
err("%s: Unexpected desc.bNumEndpoints\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
endpoint_in = &iface_host->endpoint[0].desc;
|
|
endpoint_out = &iface_host->endpoint[1].desc;
|
|
|
|
if (!usb_endpoint_is_int_in(endpoint_in)) {
|
|
err("%s: Unexpected endpoint_in\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
|
|
err("%s: endpoint_in message size==0? \n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
if (!usb_endpoint_is_int_out(endpoint_out)) {
|
|
err("%s: Unexpected endpoint_out\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL);
|
|
rc_dev = rc_allocate_device();
|
|
if (!ati_remote || !rc_dev)
|
|
goto exit_free_dev_rdev;
|
|
|
|
/* Allocate URB buffers, URBs */
|
|
if (ati_remote_alloc_buffers(udev, ati_remote))
|
|
goto exit_free_buffers;
|
|
|
|
ati_remote->endpoint_in = endpoint_in;
|
|
ati_remote->endpoint_out = endpoint_out;
|
|
ati_remote->udev = udev;
|
|
ati_remote->rdev = rc_dev;
|
|
ati_remote->interface = interface;
|
|
|
|
usb_make_path(udev, ati_remote->rc_phys, sizeof(ati_remote->rc_phys));
|
|
strlcpy(ati_remote->mouse_phys, ati_remote->rc_phys,
|
|
sizeof(ati_remote->mouse_phys));
|
|
|
|
strlcat(ati_remote->rc_phys, "/input0", sizeof(ati_remote->rc_phys));
|
|
strlcat(ati_remote->mouse_phys, "/input1", sizeof(ati_remote->mouse_phys));
|
|
|
|
snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), "%s%s%s",
|
|
udev->manufacturer ?: "",
|
|
udev->manufacturer && udev->product ? " " : "",
|
|
udev->product ?: "");
|
|
|
|
if (!strlen(ati_remote->rc_name))
|
|
snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name),
|
|
DRIVER_DESC "(%04x,%04x)",
|
|
le16_to_cpu(ati_remote->udev->descriptor.idVendor),
|
|
le16_to_cpu(ati_remote->udev->descriptor.idProduct));
|
|
|
|
snprintf(ati_remote->mouse_name, sizeof(ati_remote->mouse_name),
|
|
"%s mouse", ati_remote->rc_name);
|
|
|
|
rc_dev->map_name = RC_MAP_ATI_X10; /* default map */
|
|
|
|
/* set default keymap according to receiver model */
|
|
if (type) {
|
|
if (type->default_keymap)
|
|
rc_dev->map_name = type->default_keymap;
|
|
else if (type->get_default_keymap)
|
|
rc_dev->map_name = type->get_default_keymap(interface);
|
|
}
|
|
|
|
ati_remote_rc_init(ati_remote);
|
|
mutex_init(&ati_remote->open_mutex);
|
|
|
|
/* Device Hardware Initialization - fills in ati_remote->idev from udev. */
|
|
err = ati_remote_initialize(ati_remote);
|
|
if (err)
|
|
goto exit_kill_urbs;
|
|
|
|
/* Set up and register rc device */
|
|
err = rc_register_device(ati_remote->rdev);
|
|
if (err)
|
|
goto exit_kill_urbs;
|
|
|
|
/* use our delay for rc_dev */
|
|
ati_remote->rdev->input_dev->rep[REP_DELAY] = repeat_delay;
|
|
|
|
/* Set up and register mouse input device */
|
|
if (mouse) {
|
|
input_dev = input_allocate_device();
|
|
if (!input_dev) {
|
|
err = -ENOMEM;
|
|
goto exit_unregister_device;
|
|
}
|
|
|
|
ati_remote->idev = input_dev;
|
|
ati_remote_input_init(ati_remote);
|
|
err = input_register_device(input_dev);
|
|
|
|
if (err)
|
|
goto exit_free_input_device;
|
|
}
|
|
|
|
usb_set_intfdata(interface, ati_remote);
|
|
return 0;
|
|
|
|
exit_free_input_device:
|
|
input_free_device(input_dev);
|
|
exit_unregister_device:
|
|
rc_unregister_device(rc_dev);
|
|
rc_dev = NULL;
|
|
exit_kill_urbs:
|
|
usb_kill_urb(ati_remote->irq_urb);
|
|
usb_kill_urb(ati_remote->out_urb);
|
|
exit_free_buffers:
|
|
ati_remote_free_buffers(ati_remote);
|
|
exit_free_dev_rdev:
|
|
rc_free_device(rc_dev);
|
|
kfree(ati_remote);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* ati_remote_disconnect
|
|
*/
|
|
static void ati_remote_disconnect(struct usb_interface *interface)
|
|
{
|
|
struct ati_remote *ati_remote;
|
|
|
|
ati_remote = usb_get_intfdata(interface);
|
|
usb_set_intfdata(interface, NULL);
|
|
if (!ati_remote) {
|
|
dev_warn(&interface->dev, "%s - null device?\n", __func__);
|
|
return;
|
|
}
|
|
|
|
usb_kill_urb(ati_remote->irq_urb);
|
|
usb_kill_urb(ati_remote->out_urb);
|
|
if (ati_remote->idev)
|
|
input_unregister_device(ati_remote->idev);
|
|
rc_unregister_device(ati_remote->rdev);
|
|
ati_remote_free_buffers(ati_remote);
|
|
kfree(ati_remote);
|
|
}
|
|
|
|
/* usb specific object to register with the usb subsystem */
|
|
static struct usb_driver ati_remote_driver = {
|
|
.name = "ati_remote",
|
|
.probe = ati_remote_probe,
|
|
.disconnect = ati_remote_disconnect,
|
|
.id_table = ati_remote_table,
|
|
};
|
|
|
|
module_usb_driver(ati_remote_driver);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|