lkml.org 
[lkml]   [2004]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Subjectati_remote for medion
From
Date
I got a remote control with my PC ("Medion 8080 XL titanium") that works
with an USB-receiver (via radio-waves). As it was not supported, I
experimented a bit and found out I could 'use' the ati-remote module in
the 2.6.x-kernel. I had to change some stuff like the "#define
ATI_REMOTE_PRODUCT_ID 0x0006" and then it gave some input for some
keys. I also had to change the whole "Translation table from hardware
messages to input events" which took a lot oftime for me as I had to try
out very much as I don't know about what I had to use and the keys all
had other hex-codes then those of the ati-remotes.

I sent my changes to Torrey Hoffman <thoffman@arnor.net> a long time ago
and I thought he answered me he would put support for my kind of remote
in his module, but since then nothing happened in that way. I'm not a
coder, so I can't give 'patches' of diffs of whatever ... I even can't
recode the module to support both remotes ...

My question is: could someone please do this for me? I spent a lot of
time on it and I want to give back to the comunnity. There are more
people out there using linux who maybe already gave their remote away as
they couldn't use it with linux. But I use it for xmms, TVtime, Totem,
gxine and all those other nice apps. I don't need my name in the
credits. Yours should be if you code it :| ... please ? :)

friendly greeting,

Karel "scapor" Demeyer.

PS: attached is the code with changes (derivated of the ati-remote.c in
2.6.8.1)


/*
* USB ATI Remote support
*
* Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net>
* Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev
*
* This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including
* porting to the 2.6 kernel interfaces, along with other modification
* to better match the style of the existing usb/input drivers. However, the
* protocol and hardware handling is essentially unchanged from 2.1.1.
*
* The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by
* Vojtech Pavlik.
*
* Changes:
*
* Feb 2004: Torrey Hoffman <thoffman@arnor.net>
* Version 2.2.0
* Jun 2004: Torrey Hoffman <thoffman@arnor.net>
* Version 2.2.1
* Added key repeat support contributed by:
* Vincent Vanackere <vanackere@lif.univ-mrs.fr>
* Added support for the "Lola" remote contributed by:
* Seth Cohn <sethcohn@yahoo.com>
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Hardware & software notes
*
* These remote controls are distributed by ATI as part of their
* "All-In-Wonder" video card packages. The receiver self-identifies as a
* "USB Receiver" with manufacturer "X10 Wireless Technology Inc".
*
* The "Lola" remote is available from X10. See:
* http://www.x10.com/products/lola_sg1.htm
* The Lola is similar to the ATI remote but has no mouse support, and slightly
* different keys.
*
* It is possible to use multiple receivers and remotes on multiple computers
* simultaneously by configuring them to use specific channels.
*
* The RF protocol used by the remote supports 16 distinct channels, 1 to 16.
* Actually, it may even support more, at least in some revisions of the
* hardware.
*
* Each remote can be configured to transmit on one channel as follows:
* - Press and hold the "hand icon" button.
* - When the red LED starts to blink, let go of the "hand icon" button.
* - When it stops blinking, input the channel code as two digits, from 01
* to 16, and press the hand icon again.
*
* The timing can be a little tricky. Try loading the module with debug=1
* to have the kernel print out messages about the remote control number
* and mask. Note: debugging prints remote numbers as zero-based hexadecimal.
*
* The driver has a "channel_mask" parameter. This bitmask specifies which
* channels will be ignored by the module. To mask out channels, just add
* all the 2^channel_number values together.
*
* For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote
* ignore signals coming from remote controls transmitting on channel 4, but
* accept all other channels.
*
* Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be
* ignored.
*
* The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this
* parameter are unused.
*
*/

#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/input.h>
#include <linux/usb.h>

/*
* Module and Version Information, Module Parameters
*/

#define ATI_REMOTE_VENDOR_ID 0x0bc7
#define ATI_REMOTE_PRODUCT_ID 0x0006
#define LOLA_REMOTE_PRODUCT_ID 0x002

#define DRIVER_VERSION "2.2.1"
#define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>"
#define DRIVER_DESC "ATI/X10 RF USB Remote Control"

#define NAME_BUFSIZE 80 /* size of product name, path buffers */
#define DATA_BUFSIZE 63 /* size of URB data buffers */
#define ATI_INPUTNUM 1 /* Which input device to register as */

static unsigned long channel_mask = 0;
module_param(channel_mask, ulong, 444);
MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore");

static int debug = 0;
module_param(debug, int, 444);
MODULE_PARM_DESC(debug, "Enable extra debug messages and information");

#define dbginfo(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0)
#undef err
#define err(format, arg...) printk(KERN_ERR format , ## arg)

static struct usb_device_id ati_remote_table[] = {
{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) },
{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID) },
{} /* Terminating entry */
};

MODULE_DEVICE_TABLE(usb, ati_remote_table);

/* Get hi and low bytes of a 16-bits int */
#define HI(a) ((unsigned char)((a) >> 8))
#define LO(a) ((unsigned char)((a) & 0xff))

#define SEND_FLAG_IN_PROGRESS 1
#define SEND_FLAG_COMPLETE 2

/* Device initialization strings */
static char init1[] = { 0x01, 0x00, 0x20, 0x14 };
static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 };

/* Acceleration curve for directional control pad */
static char accel[] = { 1, 2, 4, 6, 9, 13, 20 };

/* Duplicate event filtering time.
* Sequential, identical KIND_FILTERED inputs with less than
* FILTER_TIME jiffies between them are considered as repeat
* events. The hardware generates 5 events for the first keypress
* and we have to take this into account for an accurate repeat
* behaviour.
* (HZ / 20) == 50 ms and works well for me.
*/
#define FILTER_TIME (HZ / 20)

static DECLARE_MUTEX(disconnect_sem);

struct ati_remote {
struct input_dev idev;
struct usb_device *udev;
struct usb_interface *interface;

struct urb *irq_urb;
struct urb *out_urb;
struct usb_endpoint_descriptor *endpoint_in;
struct usb_endpoint_descriptor *endpoint_out;
unsigned char *inbuf;
unsigned char *outbuf;
dma_addr_t inbuf_dma;
dma_addr_t outbuf_dma;

int open; /* open counter */
int present; /* device plugged in? */

unsigned char old_data[2]; /* Detect duplicate events */
unsigned long old_jiffies;
unsigned long acc_jiffies; /* handle acceleration */
unsigned int repeat_count;

char name[NAME_BUFSIZE];
char phys[NAME_BUFSIZE];

wait_queue_head_t wait;
int send_flags;
};

/* "Kinds" of messages sent from the hardware to the driver. */
#define KIND_END 0
#define KIND_LITERAL 1 /* Simply pass to input system */
#define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */
#define KIND_LU 3 /* Directional keypad diagonals - left up, */
#define KIND_RU 4 /* right up, */
#define KIND_LD 5 /* left down, */
#define KIND_RD 6 /* right down */
#define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/

/* Translation table from hardware messages to input events. */
static struct
{
short kind;
unsigned char data1, data2;
int type;
unsigned int code;
int value;
} ati_remote_tbl[] =
{
/* How the remote looks like; - Karel Demeyer
Legenda: ChLst = "Channel List"
TV-PR = "TV Preview"
ViDsk = "Video Desktop"
S = "Setup"



+---------------------------------+
| (TV) (VCR) (DVD) (MUSIC) |
| (RADIO) (PHOTO) (TV-PR) (ChLst)----[PAGE UP]
| (S) | (ViDsk)----[PAGE DOWN]
| (+CHAN+) -------------[HOMEPAGE]
| - + |
| V V |
| O ( < ) O |
| L L |
| - + |
| (-CHAN-) |
| (o) (txt) | ==> (o) are the colored teletext-buttons
| (o) (o) (o) | ==> F1-F4, F7
| |
| (1) (2) (3) |
| |
| (4) (5) (6) |
| |
| (7) (8) (9) |
| |
[NUMLCK]---(TV/RA) (0) (<-)------[BACKSPACE]
| |
[TAB]------( ) ( ^ ) ( )-------[ESC]
| |
| (<) ( OK ) (>) |
| |
| ( ) ( v ) ( ) |
| |
| |
| (<<) (>) (>>) |
| |
| (o) ([]) (II) |
| ----------------[F]
| (|<<) ( )-- (>>|) |
| |
[CTRL]------(o) (o)-------[ALT]
| |
| [POWER] |
+---------------------------------+
*/



/* start/function-keys */
{KIND_FILTERED, 0xf1, 0x2c, EV_KEY, KEY_PROG1, 1}, /* (TV) */
{KIND_FILTERED, 0xf2, 0x2d, EV_KEY, KEY_PROG2, 1}, /* (VCR) */
{KIND_FILTERED, 0xc9, 0x04, EV_KEY, KEY_PROG3, 1}, /* (DVD) */
{KIND_FILTERED, 0xcb, 0x06, EV_KEY, KEY_PROG4, 1}, /* (MUSIC) */
{KIND_FILTERED, 0xf3, 0x2e, EV_KEY, KEY_BACK, 1}, /* (RADIO) */
{KIND_FILTERED, 0xca, 0x05, EV_KEY, KEY_FORWARD, 1}, /* (PHOTO) */
{KIND_FILTERED, 0xf4, 0x2f, EV_KEY, KEY_HOMEPAGE, 1}, /* "TV Preview" */
{KIND_FILTERED, 0xf5, 0x30, EV_KEY, KEY_PAGEUP, 1}, /* (=) "Channel list */
{KIND_FILTERED, 0xe0, 0x1b, EV_KEY, KEY_MSDOS, 1}, /* (S) "Setup" */
{KIND_FILTERED, 0xf6, 0x31, EV_KEY, KEY_PAGEDOWN, 1}, /* (=) "Video Desktop" */
/* TV-zap-keys */
{KIND_FILTERED, 0xd1, 0x0c, EV_KEY, KEY_DOWN, 1},/* (-CHAN-) */ /*KEY_CHANNELDOWN is not very useful*/
{KIND_FILTERED, 0xcd, 0x08, EV_KEY, KEY_VOLUMEDOWN, 1}, /* (-VOL-) */
{KIND_FILTERED, 0xc5, 0x00, EV_KEY, KEY_MUTE, 1}, /* (<)) */
{KIND_FILTERED, 0xce, 0x09, EV_KEY, KEY_VOLUMEUP, 1}, /* (+VOL+) */
{KIND_FILTERED, 0xd0, 0x0b, EV_KEY, KEY_UP, 1}, /* (+CHAN+) */ /*KEY_CHANNELUP is not very useful*/
/* TT keys */
{KIND_FILTERED, 0xf7, 0x32, EV_KEY, KEY_F1, 1}, /* (o) -red- */
{KIND_FILTERED, 0xf8, 0x33, EV_KEY, KEY_F2, 1}, /* (o) -green- */
{KIND_FILTERED, 0xf9, 0x34, EV_KEY, KEY_F3, 1}, /* (o) -yellow- */
{KIND_FILTERED, 0xfa, 0x35, EV_KEY, KEY_F4, 1}, /* (o) -blue- */
{KIND_FILTERED, 0xdb, 0x16, EV_KEY, KEY_F7, 1}, /* (txt) */

/* numerical pad */
{KIND_FILTERED, 0xd2, 0x0d, EV_KEY, KEY_KP1, 1}, /* (1) */
{KIND_FILTERED, 0xd3, 0x0e, EV_KEY, KEY_KP2, 1}, /* (2) */
{KIND_FILTERED, 0xd4, 0x0f, EV_KEY, KEY_KP3, 1}, /* (3) */
{KIND_FILTERED, 0xd5, 0x10, EV_KEY, KEY_KP4, 1}, /* (4) */
{KIND_FILTERED, 0xd6, 0x11, EV_KEY, KEY_KP5, 1}, /* (5) */
{KIND_FILTERED, 0xd7, 0x12, EV_KEY, KEY_KP6, 1}, /* (6) */
{KIND_FILTERED, 0xd8, 0x13, EV_KEY, KEY_KP7, 1}, /* (7) */
{KIND_FILTERED, 0xd9, 0x14, EV_KEY, KEY_KP8, 1}, /* (8) */
{KIND_FILTERED, 0xda, 0x15, EV_KEY, KEY_KP9, 1}, /* (9) */
{KIND_FILTERED, 0xe1, 0x1c, EV_KEY, KEY_NUMLOCK, 1}, /* (TV/RADIO) "CH.SEARCH" */ /*NUMLOCK*/
{KIND_FILTERED, 0xdc, 0x17, EV_KEY, KEY_KP0, 1}, /* (0) */
{KIND_FILTERED, 0xe5, 0x20, EV_KEY, KEY_BACKSPACE, 1}, /* (<-) */
/* arrows-pad / image-keys */
{KIND_FILTERED, 0xfb, 0x36, EV_KEY, KEY_TAB, 1}, /* "rename" */ /*TAB*/
{KIND_FILTERED, 0xdf, 0x1a, EV_KEY, KEY_UP, 1}, /* (^) */
{KIND_FILTERED, 0xdd, 0x18, EV_KEY, KEY_ESC, 1}, /* "snapshot" */ /*ESC*/
{KIND_FILTERED, 0xe2, 0x1d, EV_KEY, KEY_LEFT, 1}, /* (<) */
{KIND_FILTERED, 0xe3, 0x1e, EV_KEY, KEY_ENTER, 1}, /* "OK" */
{KIND_FILTERED, 0xe4, 0x1f, EV_KEY, KEY_RIGHT, 1}, /* (>) */
{KIND_FILTERED, 0xfc, 0x37, EV_KEY, KEY_PRINT, 1}, /* "aquire image " */
{KIND_FILTERED, 0xe7, 0x22, EV_KEY, KEY_DOWN, 1}, /* (v) */
{KIND_FILTERED, 0xfd, 0x38, EV_KEY, KEY_EDIT, 1}, /* "edit image" */
/* playback-keys (as MOUSEPAD)*/
{KIND_FILTERED, 0xe9, 0x24, EV_KEY, KEY_REWIND, 1}, /* (<<) */
{KIND_FILTERED, 0xea, 0x25, EV_KEY, KEY_PLAYPAUSE, 1}, /* (>) */ /* interpreted by 'xmms-xf86audio' */
{KIND_FILTERED, 0xeb, 0x26, EV_KEY, KEY_FORWARD, 1}, /* (>>) */
{KIND_FILTERED, 0xec, 0x27, EV_KEY, KEY_RECORD, 1}, /* (o) */
{KIND_FILTERED, 0xed, 0x28, EV_KEY, KEY_STOPCD, 1}, /* ([]) */ /* interpreted by 'xmms-xf86audio' */
{KIND_FILTERED, 0xee, 0x29, EV_KEY, KEY_PAUSE, 1}, /* (II) */
{KIND_FILTERED, 0xe6, 0x21, EV_KEY, KEY_PREVIOUSSONG, 1}, /* (|<<) */ /* interpreted by 'xmms-xf86audio' */
{KIND_FILTERED, 0xfe, 0x39, EV_KEY, KEY_F, 1}, /* "Full screen" */ /*F ('fullscreen' for many media-apps) */
{KIND_FILTERED, 0xe8, 0x23, EV_KEY, KEY_NEXTSONG, 1}, /* (>>|) */ /* interpreted by 'xmms-xf86audio' */
/* DVD-keys */
{KIND_FILTERED, 0xde, 0x19, EV_KEY, KEY_LEFTCTRL, 1}, /* "DVD Menu" */
{KIND_FILTERED, 0xff, 0x3a, EV_KEY, KEY_LEFTALT, 1}, /* "DVD Audio" */
/* Power-button */
{KIND_FILTERED, 0xc7, 0x02, EV_KEY, KEY_POWER, 1}, /* (Q) -power- */



{KIND_END, 0x00, 0x00, EV_MAX + 1, 0, 0}
};


/* Local function prototypes */
static void ati_remote_dump (unsigned char *data, unsigned int actual_length);
static void ati_remote_delete (struct ati_remote *dev);
static int ati_remote_open (struct input_dev *inputdev);
static void ati_remote_close (struct input_dev *inputdev);
static int ati_remote_sendpacket (struct ati_remote *ati_remote, u16 cmd, unsigned char *data);
static void ati_remote_irq_out (struct urb *urb, struct pt_regs *regs);
static void ati_remote_irq_in (struct urb *urb, struct pt_regs *regs);
static void ati_remote_input_report (struct urb *urb, struct pt_regs *regs);
static int ati_remote_initialize (struct ati_remote *ati_remote);
static int ati_remote_probe (struct usb_interface *interface, const struct usb_device_id *id);
static void ati_remote_disconnect (struct usb_interface *interface);

/* usb specific object to register with the usb subsystem */
static struct usb_driver ati_remote_driver = {
.owner = THIS_MODULE,
.name = "ati_remote",
.probe = ati_remote_probe,
.disconnect = ati_remote_disconnect,
.id_table = ati_remote_table,
};

/*
* ati_remote_dump_input
*/
static void ati_remote_dump(unsigned char *data, unsigned int len)
{
if ((len == 1) && (data[0] != (unsigned char)0xff) && (data[0] != 0x00))
warn("Weird byte 0x%02x", data[0]);
else if (len == 4)
warn("Weird key %02x %02x %02x %02x",
data[0], data[1], data[2], data[3]);
else
warn("Weird data, len=%d %02x %02x %02x %02x %02x %02x ...",
len, data[0], data[1], data[2], data[3], data[4], data[5]);
}

/*
* ati_remote_open
*/
static int ati_remote_open(struct input_dev *inputdev)
{
struct ati_remote *ati_remote = inputdev->private;
int retval = 0;

down(&disconnect_sem);

if (ati_remote->open++)
goto exit;

/* On first open, submit the read urb which was set up previously. */
ati_remote->irq_urb->dev = ati_remote->udev;
if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) {
dev_err(&ati_remote->interface->dev,
"%s: usb_submit_urb failed!\n", __FUNCTION__);
ati_remote->open--;
retval = -EIO;
}

exit:
up(&disconnect_sem);
return retval;
}

/*
* ati_remote_close
*/
static void ati_remote_close(struct input_dev *inputdev)
{
struct ati_remote *ati_remote = inputdev->private;

if (ati_remote == NULL) {
err("ati_remote: %s: object is NULL!\n", __FUNCTION__);
return;
}

if (ati_remote->open <= 0)
dev_dbg(&ati_remote->interface->dev, "%s: Not open.\n", __FUNCTION__);
else
--ati_remote->open;

/* If still present, disconnect will call delete. */
if (!ati_remote->present && !ati_remote->open)
ati_remote_delete(ati_remote);
}

/*
* ati_remote_irq_out
*/
static void ati_remote_irq_out(struct urb *urb, struct pt_regs *regs)
{
struct ati_remote *ati_remote = urb->context;

if (urb->status) {
dev_dbg(&ati_remote->interface->dev, "%s: status %d\n",
__FUNCTION__, urb->status);
return;
}

ati_remote->send_flags |= SEND_FLAG_COMPLETE;
wmb();
wake_up(&ati_remote->wait);
}

/*
* ati_remote_sendpacket
*
* Used to send device initialization strings
*/
static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigned char *data)
{
DECLARE_WAITQUEUE(wait, current);
int timeout = HZ; /* 1 second */
int retval = 0;

/* Set up out_urb */
memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd));
((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd);

ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1;
ati_remote->out_urb->dev = ati_remote->udev;
ati_remote->send_flags = SEND_FLAG_IN_PROGRESS;

retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC);
if (retval) {
dev_dbg(&ati_remote->interface->dev,
"sendpacket: usb_submit_urb failed: %d\n", retval);
return retval;
}

set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&ati_remote->wait, &wait);

while (timeout && (ati_remote->out_urb->status == -EINPROGRESS)
&& !(ati_remote->send_flags & SEND_FLAG_COMPLETE)) {
timeout = schedule_timeout(timeout);
rmb();
}

set_current_state(TASK_RUNNING);
remove_wait_queue(&ati_remote->wait, &wait);
usb_unlink_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]) &&
((ati_remote->old_jiffies + FILTER_TIME) > jiffies)) {
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 ((jiffies - ati_remote->old_jiffies) > (HZ >> 2)) {
acc = 1;
ati_remote->acc_jiffies = jiffies;
}
else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 3)) acc = accel[0];
else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 2)) acc = accel[1];
else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 1)) acc = accel[2];
else if ((jiffies - ati_remote->acc_jiffies) < HZ ) acc = accel[3];
else if ((jiffies - ati_remote->acc_jiffies) < HZ+(HZ>>1)) acc = accel[4];
else if ((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_delete
*/
static void ati_remote_delete(struct ati_remote *ati_remote)
{
if (!ati_remote) return;

if (ati_remote->irq_urb)
usb_unlink_urb(ati_remote->irq_urb);

if (ati_remote->out_urb)
usb_unlink_urb(ati_remote->out_urb);

input_unregister_device(&ati_remote->idev);

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);

if (ati_remote->irq_urb)
usb_free_urb(ati_remote->irq_urb);

if (ati_remote->out_urb)
usb_free_urb(ati_remote->out_urb);

kfree(ati_remote);
}

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;

idev->id.bustype = BUS_USB;
idev->id.vendor = ati_remote->udev->descriptor.idVendor;
idev->id.product = ati_remote->udev->descriptor.idProduct;
idev->id.version = ati_remote->udev->descriptor.bcdDevice;
}

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 1;
}

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 ati_remote *ati_remote = NULL;
struct usb_host_interface *iface_host;
int retval = -ENOMEM;
char path[64];
char *buf = NULL;

/* See if the offered device matches what we can accept */
if ((udev->descriptor.idVendor != ATI_REMOTE_VENDOR_ID) ||
( (udev->descriptor.idProduct != ATI_REMOTE_PRODUCT_ID) &&
(udev->descriptor.idProduct != LOLA_REMOTE_PRODUCT_ID) ))
return -ENODEV;

/* Allocate and clear an ati_remote struct */
if (!(ati_remote = kmalloc(sizeof (struct ati_remote), GFP_KERNEL)))
return -ENOMEM;
memset(ati_remote, 0x00, sizeof (struct ati_remote));

iface_host = interface->cur_altsetting;
if (iface_host->desc.bNumEndpoints != 2) {
err("%s: Unexpected desc.bNumEndpoints\n", __FUNCTION__);
retval = -ENODEV;
goto error;
}

ati_remote->endpoint_in = &(iface_host->endpoint[0].desc);
ati_remote->endpoint_out = &(iface_host->endpoint[1].desc);
ati_remote->udev = udev;
ati_remote->interface = interface;

if (!(ati_remote->endpoint_in->bEndpointAddress & 0x80)) {
err("%s: Unexpected endpoint_in->bEndpointAddress\n", __FUNCTION__);
retval = -ENODEV;
goto error;
}
if ((ati_remote->endpoint_in->bmAttributes & 3) != 3) {
err("%s: Unexpected endpoint_in->bmAttributes\n", __FUNCTION__);
retval = -ENODEV;
goto error;
}
if (ati_remote->endpoint_in->wMaxPacketSize == 0) {
err("%s: endpoint_in message size==0? \n", __FUNCTION__);
retval = -ENODEV;
goto error;
}
if (!(buf = kmalloc(NAME_BUFSIZE, GFP_KERNEL)))
goto error;

/* Allocate URB buffers, URBs */
ati_remote->inbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC,
&ati_remote->inbuf_dma);
if (!ati_remote->inbuf)
goto error;

ati_remote->outbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC,
&ati_remote->outbuf_dma);
if (!ati_remote->outbuf)
goto error;

ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!ati_remote->irq_urb)
goto error;

ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!ati_remote->out_urb)
goto error;

usb_make_path(udev, path, NAME_BUFSIZE);
sprintf(ati_remote->phys, "%s/input%d", path, ATI_INPUTNUM);
if (udev->descriptor.iManufacturer &&
(usb_string(udev, udev->descriptor.iManufacturer, buf,
NAME_BUFSIZE) > 0))
strcat(ati_remote->name, buf);

if (udev->descriptor.iProduct &&
(usb_string(udev, udev->descriptor.iProduct, buf, NAME_BUFSIZE) > 0))
sprintf(ati_remote->name, "%s %s", ati_remote->name, buf);

if (!strlen(ati_remote->name))
sprintf(ati_remote->name, DRIVER_DESC "(%04x,%04x)",
ati_remote->udev->descriptor.idVendor,
ati_remote->udev->descriptor.idProduct);

/* Device Hardware Initialization - fills in ati_remote->idev from udev. */
retval = ati_remote_initialize(ati_remote);
if (retval)
goto error;

/* Set up and register input device */
ati_remote_input_init(ati_remote);
input_register_device(&ati_remote->idev);

dev_info(&ati_remote->interface->dev, "Input registered: %s on %s\n",
ati_remote->name, path);

usb_set_intfdata(interface, ati_remote);
ati_remote->present = 1;

error:
if (buf)
kfree(buf);

if (retval)
ati_remote_delete(ati_remote);

return retval;
}

/*
* ati_remote_disconnect
*/
static void ati_remote_disconnect(struct usb_interface *interface)
{
struct ati_remote *ati_remote;

down(&disconnect_sem);

ati_remote = usb_get_intfdata(interface);
usb_set_intfdata(interface, NULL);
if (!ati_remote) {
warn("%s - null device?\n", __FUNCTION__);
return;
}

/* Mark device as unplugged */
ati_remote->present = 0;

/* If device is still open, ati_remote_close will call delete. */
if (!ati_remote->open)
ati_remote_delete(ati_remote);

up(&disconnect_sem);
}

/*
* 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");
\
 
 \ /
  Last update: 2005-03-22 14:05    [W:0.053 / U:30.944 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site