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972 lines
28 KiB
972 lines
28 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* USB ATI Remote support |
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* |
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* Copyright (c) 2011, 2012 Anssi Hannula <[email protected]> |
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* Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <[email protected]> |
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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 <[email protected]> |
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* Version 2.2.0 |
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* Jun 2004: Torrey Hoffman <[email protected]> |
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* Version 2.2.1 |
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* Added key repeat support contributed by: |
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* Vincent Vanackere <[email protected]> |
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* Added support for the "Lola" remote contributed by: |
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* Seth Cohn <[email protected]> |
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* |
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
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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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/* |
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* Module and Version Information, Module Parameters |
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*/ |
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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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|
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#define DRIVER_VERSION "2.2.1" |
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#define DRIVER_AUTHOR "Torrey Hoffman <[email protected]>" |
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#define DRIVER_DESC "ATI/X10 RF USB Remote Control" |
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|
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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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/* |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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/* |
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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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|
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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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|
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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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|
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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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|
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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 const 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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|
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MODULE_DEVICE_TABLE(usb, ati_remote_table); |
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|
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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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|
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#define SEND_FLAG_IN_PROGRESS 1 |
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#define SEND_FLAG_COMPLETE 2 |
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|
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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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|
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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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|
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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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|
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wait_queue_head_t wait; |
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int send_flags; |
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|
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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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|
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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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|
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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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|
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/* Artificial "double-click" 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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|
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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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/* |
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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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|
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mutex_lock(&ati_remote->open_mutex); |
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|
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if (ati_remote->users++ != 0) |
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goto out; /* one was already active */ |
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|
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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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|
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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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/* |
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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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|
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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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|
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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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|
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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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|
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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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/* |
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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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|
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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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|
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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)) { |
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ati_remote->acc_jiffies = now; |
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return 1; |
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} |
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for (i = 0; i < ARRAY_SIZE(accel) - 1; i++) { |
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unsigned long timeout = msecs_to_jiffies(accel[i].msecs); |
|
|
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if (time_before(now, ati_remote->acc_jiffies + timeout)) |
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return accel[i].value; |
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} |
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return accel[i].value; |
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} |
|
|
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/* |
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* ati_remote_report_input |
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*/ |
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static void ati_remote_input_report(struct urb *urb) |
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{ |
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struct ati_remote *ati_remote = urb->context; |
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unsigned char *data= ati_remote->inbuf; |
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struct input_dev *dev = ati_remote->idev; |
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int index = -1; |
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int remote_num; |
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unsigned char scancode; |
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u32 wheel_keycode = KEY_RESERVED; |
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int i; |
|
|
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/* |
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* data[0] = 0x14 |
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* data[1] = data[2] + data[3] + 0xd5 (a checksum byte) |
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* data[2] = the key code (with toggle bit in MSB with some models) |
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* data[3] = channel << 4 (the low 4 bits must be zero) |
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*/ |
|
|
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/* Deal with strange looking inputs */ |
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if ( urb->actual_length != 4 || data[0] != 0x14 || |
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data[1] != (unsigned char)(data[2] + data[3] + 0xD5) || |
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(data[3] & 0x0f) != 0x00) { |
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ati_remote_dump(&urb->dev->dev, data, urb->actual_length); |
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return; |
|
} |
|
|
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if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) { |
|
dbginfo(&ati_remote->interface->dev, |
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"wrong checksum in input: %*ph\n", 4, data); |
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return; |
|
} |
|
|
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/* 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", |
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remote_num, data[2], channel_mask); |
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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, |
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"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_PROTO_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->allowed_protocols = RC_PROTO_BIT_OTHER; |
|
rdev->driver_name = "ati_remote"; |
|
|
|
rdev->open = ati_remote_rc_open; |
|
rdev->close = ati_remote_rc_close; |
|
|
|
rdev->device_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(RC_DRIVER_SCANCODE); |
|
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)); |
|
strscpy(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; |
|
|
|
/* 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");
|
|
|