![Marcelo Feitoza Parisi](/assets/img/avatar_default.png)
They deal with wrapping correctly and are nicer to read. Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
836 lines
27 KiB
C
836 lines
27 KiB
C
/*
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* USB ATI Remote support
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*
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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/config.h>
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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/moduleparam.h>
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#include <linux/input.h>
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#include <linux/usb.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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/*
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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 ATI_REMOTE_PRODUCT_ID 0x004
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#define LOLA_REMOTE_PRODUCT_ID 0x002
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#define MEDION_REMOTE_PRODUCT_ID 0x006
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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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static unsigned long channel_mask;
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module_param(channel_mask, ulong, 0444);
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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, 0444);
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MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
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#define dbginfo(dev, format, arg...) 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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static struct usb_device_id ati_remote_table[] = {
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{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) },
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{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID) },
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{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID) },
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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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/* Acceleration curve for directional control pad */
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static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 };
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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 jiffies 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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* (HZ / 20) == 50 ms and works well for me.
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*/
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#define FILTER_TIME (HZ / 20)
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static DECLARE_MUTEX(disconnect_sem);
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struct ati_remote {
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struct input_dev *idev;
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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[2]; /* 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 int repeat_count;
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char name[NAME_BUFSIZE];
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char phys[NAME_BUFSIZE];
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wait_queue_head_t wait;
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int send_flags;
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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 */
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#define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */
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#define KIND_LU 3 /* Directional keypad diagonals - left up, */
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#define KIND_RU 4 /* right up, */
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#define KIND_LD 5 /* left down, */
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#define KIND_RD 6 /* right down */
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#define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/
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/* Translation table from hardware messages to input events. */
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static const struct {
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short kind;
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unsigned char data1, data2;
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int type;
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unsigned int code;
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int value;
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} ati_remote_tbl[] = {
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/* Directional control pad axes */
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{KIND_ACCEL, 0x35, 0x70, EV_REL, REL_X, -1}, /* left */
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{KIND_ACCEL, 0x36, 0x71, EV_REL, REL_X, 1}, /* right */
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{KIND_ACCEL, 0x37, 0x72, EV_REL, REL_Y, -1}, /* up */
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{KIND_ACCEL, 0x38, 0x73, EV_REL, REL_Y, 1}, /* down */
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/* Directional control pad diagonals */
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{KIND_LU, 0x39, 0x74, EV_REL, 0, 0}, /* left up */
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{KIND_RU, 0x3a, 0x75, EV_REL, 0, 0}, /* right up */
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{KIND_LD, 0x3c, 0x77, EV_REL, 0, 0}, /* left down */
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{KIND_RD, 0x3b, 0x76, EV_REL, 0, 0}, /* right down */
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/* "Mouse button" buttons */
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{KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */
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{KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */
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{KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */
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{KIND_LITERAL, 0x42, 0x7d, EV_KEY, BTN_RIGHT, 0},/* 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, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */
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{KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */
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/* keyboard. */
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{KIND_FILTERED, 0xd2, 0x0d, EV_KEY, KEY_1, 1},
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{KIND_FILTERED, 0xd3, 0x0e, EV_KEY, KEY_2, 1},
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{KIND_FILTERED, 0xd4, 0x0f, EV_KEY, KEY_3, 1},
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{KIND_FILTERED, 0xd5, 0x10, EV_KEY, KEY_4, 1},
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{KIND_FILTERED, 0xd6, 0x11, EV_KEY, KEY_5, 1},
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{KIND_FILTERED, 0xd7, 0x12, EV_KEY, KEY_6, 1},
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{KIND_FILTERED, 0xd8, 0x13, EV_KEY, KEY_7, 1},
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{KIND_FILTERED, 0xd9, 0x14, EV_KEY, KEY_8, 1},
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{KIND_FILTERED, 0xda, 0x15, EV_KEY, KEY_9, 1},
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{KIND_FILTERED, 0xdc, 0x17, EV_KEY, KEY_0, 1},
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{KIND_FILTERED, 0xc5, 0x00, EV_KEY, KEY_A, 1},
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{KIND_FILTERED, 0xc6, 0x01, EV_KEY, KEY_B, 1},
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{KIND_FILTERED, 0xde, 0x19, EV_KEY, KEY_C, 1},
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{KIND_FILTERED, 0xe0, 0x1b, EV_KEY, KEY_D, 1},
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{KIND_FILTERED, 0xe6, 0x21, EV_KEY, KEY_E, 1},
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{KIND_FILTERED, 0xe8, 0x23, EV_KEY, KEY_F, 1},
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/* "special" keys */
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{KIND_FILTERED, 0xdd, 0x18, EV_KEY, KEY_KPENTER, 1}, /* "check" */
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{KIND_FILTERED, 0xdb, 0x16, EV_KEY, KEY_MENU, 1}, /* "menu" */
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{KIND_FILTERED, 0xc7, 0x02, EV_KEY, KEY_POWER, 1}, /* Power */
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{KIND_FILTERED, 0xc8, 0x03, EV_KEY, KEY_TV, 1}, /* TV */
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{KIND_FILTERED, 0xc9, 0x04, EV_KEY, KEY_DVD, 1}, /* DVD */
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{KIND_FILTERED, 0xca, 0x05, EV_KEY, KEY_WWW, 1}, /* WEB */
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{KIND_FILTERED, 0xcb, 0x06, EV_KEY, KEY_BOOKMARKS, 1}, /* "book" */
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{KIND_FILTERED, 0xcc, 0x07, EV_KEY, KEY_EDIT, 1}, /* "hand" */
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{KIND_FILTERED, 0xe1, 0x1c, EV_KEY, KEY_COFFEE, 1}, /* "timer" */
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{KIND_FILTERED, 0xe5, 0x20, EV_KEY, KEY_FRONT, 1}, /* "max" */
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{KIND_FILTERED, 0xe2, 0x1d, EV_KEY, KEY_LEFT, 1}, /* left */
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{KIND_FILTERED, 0xe4, 0x1f, EV_KEY, KEY_RIGHT, 1}, /* right */
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{KIND_FILTERED, 0xe7, 0x22, EV_KEY, KEY_DOWN, 1}, /* down */
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{KIND_FILTERED, 0xdf, 0x1a, EV_KEY, KEY_UP, 1}, /* up */
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{KIND_FILTERED, 0xe3, 0x1e, EV_KEY, KEY_OK, 1}, /* "OK" */
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{KIND_FILTERED, 0xce, 0x09, EV_KEY, KEY_VOLUMEDOWN, 1}, /* VOL + */
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{KIND_FILTERED, 0xcd, 0x08, EV_KEY, KEY_VOLUMEUP, 1}, /* VOL - */
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{KIND_FILTERED, 0xcf, 0x0a, EV_KEY, KEY_MUTE, 1}, /* MUTE */
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{KIND_FILTERED, 0xd0, 0x0b, EV_KEY, KEY_CHANNELUP, 1}, /* CH + */
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{KIND_FILTERED, 0xd1, 0x0c, EV_KEY, KEY_CHANNELDOWN, 1},/* CH - */
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{KIND_FILTERED, 0xec, 0x27, EV_KEY, KEY_RECORD, 1}, /* ( o) red */
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{KIND_FILTERED, 0xea, 0x25, EV_KEY, KEY_PLAY, 1}, /* ( >) */
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{KIND_FILTERED, 0xe9, 0x24, EV_KEY, KEY_REWIND, 1}, /* (<<) */
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{KIND_FILTERED, 0xeb, 0x26, EV_KEY, KEY_FORWARD, 1}, /* (>>) */
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{KIND_FILTERED, 0xed, 0x28, EV_KEY, KEY_STOP, 1}, /* ([]) */
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{KIND_FILTERED, 0xee, 0x29, EV_KEY, KEY_PAUSE, 1}, /* ('') */
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{KIND_FILTERED, 0xf0, 0x2b, EV_KEY, KEY_PREVIOUS, 1}, /* (<-) */
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{KIND_FILTERED, 0xef, 0x2a, EV_KEY, KEY_NEXT, 1}, /* (>+) */
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{KIND_FILTERED, 0xf2, 0x2D, EV_KEY, KEY_INFO, 1}, /* PLAYING */
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{KIND_FILTERED, 0xf3, 0x2E, EV_KEY, KEY_HOME, 1}, /* TOP */
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{KIND_FILTERED, 0xf4, 0x2F, EV_KEY, KEY_END, 1}, /* END */
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{KIND_FILTERED, 0xf5, 0x30, EV_KEY, KEY_SELECT, 1}, /* SELECT */
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{KIND_END, 0x00, 0x00, EV_MAX + 1, 0, 0}
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};
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/* Local function prototypes */
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static void ati_remote_dump (unsigned char *data, unsigned int actual_length);
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static int ati_remote_open (struct input_dev *inputdev);
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static void ati_remote_close (struct input_dev *inputdev);
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static int ati_remote_sendpacket (struct ati_remote *ati_remote, u16 cmd, unsigned char *data);
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static void ati_remote_irq_out (struct urb *urb, struct pt_regs *regs);
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static void ati_remote_irq_in (struct urb *urb, struct pt_regs *regs);
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static void ati_remote_input_report (struct urb *urb, struct pt_regs *regs);
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static int ati_remote_initialize (struct ati_remote *ati_remote);
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static int ati_remote_probe (struct usb_interface *interface, const struct usb_device_id *id);
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static void ati_remote_disconnect (struct usb_interface *interface);
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/* usb specific object to register with the usb subsystem */
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static struct usb_driver ati_remote_driver = {
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.name = "ati_remote",
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.probe = ati_remote_probe,
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.disconnect = ati_remote_disconnect,
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.id_table = ati_remote_table,
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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(unsigned char *data, unsigned int len)
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{
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if ((len == 1) && (data[0] != (unsigned char)0xff) && (data[0] != 0x00))
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warn("Weird byte 0x%02x", data[0]);
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else if (len == 4)
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warn("Weird key %02x %02x %02x %02x",
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data[0], data[1], data[2], data[3]);
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else
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warn("Weird data, len=%d %02x %02x %02x %02x %02x %02x ...",
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len, data[0], data[1], data[2], data[3], data[4], data[5]);
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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 input_dev *inputdev)
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{
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struct ati_remote *ati_remote = inputdev->private;
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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", __FUNCTION__);
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return -EIO;
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}
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return 0;
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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 input_dev *inputdev)
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{
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struct ati_remote *ati_remote = inputdev->private;
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usb_kill_urb(ati_remote->irq_urb);
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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, struct pt_regs *regs)
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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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__FUNCTION__, 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, 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) ||
|
|
(ati_remote->send_flags & SEND_FLAG_COMPLETE)),
|
|
HZ);
|
|
usb_kill_urb(ati_remote->out_urb);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* ati_remote_event_lookup
|
|
*/
|
|
static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) {
|
|
/*
|
|
* Decide if the table entry matches the remote input.
|
|
*/
|
|
if ((((ati_remote_tbl[i].data1 & 0x0f) == (d1 & 0x0f))) &&
|
|
((((ati_remote_tbl[i].data1 >> 4) -
|
|
(d1 >> 4) + rem) & 0x0f) == 0x0f) &&
|
|
(ati_remote_tbl[i].data2 == d2))
|
|
return i;
|
|
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* ati_remote_report_input
|
|
*/
|
|
static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct ati_remote *ati_remote = urb->context;
|
|
unsigned char *data= ati_remote->inbuf;
|
|
struct input_dev *dev = ati_remote->idev;
|
|
int index, acc;
|
|
int remote_num;
|
|
|
|
/* Deal with strange looking inputs */
|
|
if ( (urb->actual_length != 4) || (data[0] != 0x14) ||
|
|
((data[3] & 0x0f) != 0x00) ) {
|
|
ati_remote_dump(data, urb->actual_length);
|
|
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,%02x, mask= 0x%02lx\n",
|
|
remote_num, data[1], data[2], channel_mask);
|
|
return;
|
|
}
|
|
|
|
/* Look up event code index in translation table */
|
|
index = ati_remote_event_lookup(remote_num, data[1], data[2]);
|
|
if (index < 0) {
|
|
dev_warn(&ati_remote->interface->dev,
|
|
"Unknown input from channel 0x%02x: data %02x,%02x\n",
|
|
remote_num, data[1], data[2]);
|
|
return;
|
|
}
|
|
dbginfo(&ati_remote->interface->dev,
|
|
"channel 0x%02x; data %02x,%02x; index %d; keycode %d\n",
|
|
remote_num, data[1], data[2], index, ati_remote_tbl[index].code);
|
|
|
|
if (ati_remote_tbl[index].kind == KIND_LITERAL) {
|
|
input_regs(dev, regs);
|
|
input_event(dev, ati_remote_tbl[index].type,
|
|
ati_remote_tbl[index].code,
|
|
ati_remote_tbl[index].value);
|
|
input_sync(dev);
|
|
|
|
ati_remote->old_jiffies = jiffies;
|
|
return;
|
|
}
|
|
|
|
if (ati_remote_tbl[index].kind == KIND_FILTERED) {
|
|
/* Filter duplicate events which happen "too close" together. */
|
|
if ((ati_remote->old_data[0] == data[1]) &&
|
|
(ati_remote->old_data[1] == data[2]) &&
|
|
time_before(jiffies, ati_remote->old_jiffies + FILTER_TIME)) {
|
|
ati_remote->repeat_count++;
|
|
} else {
|
|
ati_remote->repeat_count = 0;
|
|
}
|
|
|
|
ati_remote->old_data[0] = data[1];
|
|
ati_remote->old_data[1] = data[2];
|
|
ati_remote->old_jiffies = jiffies;
|
|
|
|
if ((ati_remote->repeat_count > 0)
|
|
&& (ati_remote->repeat_count < 5))
|
|
return;
|
|
|
|
|
|
input_regs(dev, regs);
|
|
input_event(dev, ati_remote_tbl[index].type,
|
|
ati_remote_tbl[index].code, 1);
|
|
input_event(dev, ati_remote_tbl[index].type,
|
|
ati_remote_tbl[index].code, 0);
|
|
input_sync(dev);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
*
|
|
* If elapsed time since last event is > 1/4 second, user "stopped",
|
|
* so reset acceleration. Otherwise, user is probably holding the control
|
|
* pad down, so we increase acceleration, ramping up over two seconds to
|
|
* a maximum speed. The acceleration curve is #defined above.
|
|
*/
|
|
if (time_after(jiffies, ati_remote->old_jiffies + (HZ >> 2))) {
|
|
acc = 1;
|
|
ati_remote->acc_jiffies = jiffies;
|
|
}
|
|
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 3))) acc = accel[0];
|
|
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 2))) acc = accel[1];
|
|
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 1))) acc = accel[2];
|
|
else if (time_before(jiffies, ati_remote->acc_jiffies + HZ)) acc = accel[3];
|
|
else if (time_before(jiffies, ati_remote->acc_jiffies + HZ+(HZ>>1))) acc = accel[4];
|
|
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ << 1))) acc = accel[5];
|
|
else acc = accel[6];
|
|
|
|
input_regs(dev, regs);
|
|
switch (ati_remote_tbl[index].kind) {
|
|
case KIND_ACCEL:
|
|
input_event(dev, ati_remote_tbl[index].type,
|
|
ati_remote_tbl[index].code,
|
|
ati_remote_tbl[index].value * acc);
|
|
break;
|
|
case KIND_LU:
|
|
input_report_rel(dev, REL_X, -acc);
|
|
input_report_rel(dev, REL_Y, -acc);
|
|
break;
|
|
case KIND_RU:
|
|
input_report_rel(dev, REL_X, acc);
|
|
input_report_rel(dev, REL_Y, -acc);
|
|
break;
|
|
case KIND_LD:
|
|
input_report_rel(dev, REL_X, -acc);
|
|
input_report_rel(dev, REL_Y, acc);
|
|
break;
|
|
case KIND_RD:
|
|
input_report_rel(dev, REL_X, acc);
|
|
input_report_rel(dev, REL_Y, acc);
|
|
break;
|
|
default:
|
|
dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n",
|
|
ati_remote_tbl[index].kind);
|
|
}
|
|
input_sync(dev);
|
|
|
|
ati_remote->old_jiffies = jiffies;
|
|
ati_remote->old_data[0] = data[1];
|
|
ati_remote->old_data[1] = data[2];
|
|
}
|
|
|
|
/*
|
|
* ati_remote_irq_in
|
|
*/
|
|
static void ati_remote_irq_in(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct ati_remote *ati_remote = urb->context;
|
|
int retval;
|
|
|
|
switch (urb->status) {
|
|
case 0: /* success */
|
|
ati_remote_input_report(urb, regs);
|
|
break;
|
|
case -ECONNRESET: /* unlink */
|
|
case -ENOENT:
|
|
case -ESHUTDOWN:
|
|
dev_dbg(&ati_remote->interface->dev, "%s: urb error status, unlink? \n",
|
|
__FUNCTION__);
|
|
return;
|
|
default: /* error */
|
|
dev_dbg(&ati_remote->interface->dev, "%s: Nonzero urb status %d\n",
|
|
__FUNCTION__, urb->status);
|
|
}
|
|
|
|
retval = usb_submit_urb(urb, SLAB_ATOMIC);
|
|
if (retval)
|
|
dev_err(&ati_remote->interface->dev, "%s: usb_submit_urb()=%d\n",
|
|
__FUNCTION__, retval);
|
|
}
|
|
|
|
/*
|
|
* ati_remote_alloc_buffers
|
|
*/
|
|
static int ati_remote_alloc_buffers(struct usb_device *udev,
|
|
struct ati_remote *ati_remote)
|
|
{
|
|
ati_remote->inbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC,
|
|
&ati_remote->inbuf_dma);
|
|
if (!ati_remote->inbuf)
|
|
return -1;
|
|
|
|
ati_remote->outbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_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)
|
|
{
|
|
if (ati_remote->irq_urb)
|
|
usb_free_urb(ati_remote->irq_urb);
|
|
|
|
if (ati_remote->out_urb)
|
|
usb_free_urb(ati_remote->out_urb);
|
|
|
|
if (ati_remote->inbuf)
|
|
usb_buffer_free(ati_remote->udev, DATA_BUFSIZE,
|
|
ati_remote->inbuf, ati_remote->inbuf_dma);
|
|
|
|
if (ati_remote->outbuf)
|
|
usb_buffer_free(ati_remote->udev, DATA_BUFSIZE,
|
|
ati_remote->inbuf, 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(EV_KEY) | BIT(EV_REL);
|
|
idev->keybit[LONG(BTN_MOUSE)] = ( BIT(BTN_LEFT) | BIT(BTN_RIGHT) |
|
|
BIT(BTN_SIDE) | BIT(BTN_EXTRA) );
|
|
idev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
|
|
for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++)
|
|
if (ati_remote_tbl[i].type == EV_KEY)
|
|
set_bit(ati_remote_tbl[i].code, idev->keybit);
|
|
|
|
idev->private = ati_remote;
|
|
idev->open = ati_remote_open;
|
|
idev->close = ati_remote_close;
|
|
|
|
idev->name = ati_remote->name;
|
|
idev->phys = ati_remote->phys;
|
|
|
|
usb_to_input_id(ati_remote->udev, &idev->id);
|
|
idev->cdev.dev = &ati_remote->udev->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_remote *ati_remote;
|
|
struct input_dev *input_dev;
|
|
int err = -ENOMEM;
|
|
|
|
if (iface_host->desc.bNumEndpoints != 2) {
|
|
err("%s: Unexpected desc.bNumEndpoints\n", __FUNCTION__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
endpoint_in = &iface_host->endpoint[0].desc;
|
|
endpoint_out = &iface_host->endpoint[1].desc;
|
|
|
|
if (!(endpoint_in->bEndpointAddress & USB_DIR_IN)) {
|
|
err("%s: Unexpected endpoint_in->bEndpointAddress\n", __FUNCTION__);
|
|
return -ENODEV;
|
|
}
|
|
if ((endpoint_in->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) {
|
|
err("%s: Unexpected endpoint_in->bmAttributes\n", __FUNCTION__);
|
|
return -ENODEV;
|
|
}
|
|
if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
|
|
err("%s: endpoint_in message size==0? \n", __FUNCTION__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL);
|
|
input_dev = input_allocate_device();
|
|
if (!ati_remote || !input_dev)
|
|
goto fail1;
|
|
|
|
/* Allocate URB buffers, URBs */
|
|
if (ati_remote_alloc_buffers(udev, ati_remote))
|
|
goto fail2;
|
|
|
|
ati_remote->endpoint_in = endpoint_in;
|
|
ati_remote->endpoint_out = endpoint_out;
|
|
ati_remote->udev = udev;
|
|
ati_remote->idev = input_dev;
|
|
ati_remote->interface = interface;
|
|
|
|
usb_make_path(udev, ati_remote->phys, sizeof(ati_remote->phys));
|
|
strlcpy(ati_remote->phys, "/input0", sizeof(ati_remote->phys));
|
|
|
|
if (udev->manufacturer)
|
|
strlcpy(ati_remote->name, udev->manufacturer, sizeof(ati_remote->name));
|
|
|
|
if (udev->product)
|
|
snprintf(ati_remote->name, sizeof(ati_remote->name),
|
|
"%s %s", ati_remote->name, udev->product);
|
|
|
|
if (!strlen(ati_remote->name))
|
|
snprintf(ati_remote->name, sizeof(ati_remote->name),
|
|
DRIVER_DESC "(%04x,%04x)",
|
|
le16_to_cpu(ati_remote->udev->descriptor.idVendor),
|
|
le16_to_cpu(ati_remote->udev->descriptor.idProduct));
|
|
|
|
ati_remote_input_init(ati_remote);
|
|
|
|
/* Device Hardware Initialization - fills in ati_remote->idev from udev. */
|
|
err = ati_remote_initialize(ati_remote);
|
|
if (err)
|
|
goto fail3;
|
|
|
|
/* Set up and register input device */
|
|
input_register_device(ati_remote->idev);
|
|
|
|
usb_set_intfdata(interface, ati_remote);
|
|
return 0;
|
|
|
|
fail3: usb_kill_urb(ati_remote->irq_urb);
|
|
usb_kill_urb(ati_remote->out_urb);
|
|
fail2: ati_remote_free_buffers(ati_remote);
|
|
fail1: input_free_device(input_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) {
|
|
warn("%s - null device?\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
usb_kill_urb(ati_remote->irq_urb);
|
|
usb_kill_urb(ati_remote->out_urb);
|
|
input_unregister_device(ati_remote->idev);
|
|
ati_remote_free_buffers(ati_remote);
|
|
kfree(ati_remote);
|
|
}
|
|
|
|
/*
|
|
* ati_remote_init
|
|
*/
|
|
static int __init ati_remote_init(void)
|
|
{
|
|
int result;
|
|
|
|
result = usb_register(&ati_remote_driver);
|
|
if (result)
|
|
err("usb_register error #%d\n", result);
|
|
else
|
|
info("Registered USB driver " DRIVER_DESC " v. " DRIVER_VERSION);
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* ati_remote_exit
|
|
*/
|
|
static void __exit ati_remote_exit(void)
|
|
{
|
|
usb_deregister(&ati_remote_driver);
|
|
}
|
|
|
|
/*
|
|
* module specification
|
|
*/
|
|
|
|
module_init(ati_remote_init);
|
|
module_exit(ati_remote_exit);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|