[PATCH] ATI Remote Control improvements

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Hi

Please find below a patch to improve the functionality of the ATI Remote
Control as follows.

* Fixed handling of double-click BTN_XXX events that require the
input_event timestamp to change between press and release events.
* Added module parameter 'xkeycodesonly' to prevent driver generating
keycodes that are not recognised by X windows. (disabled by default)
* Added module parameter 'selectiverepeat' to make driver only generate
key repeats for certain keys such and cursor and volume.  (disabled by
default)
* Modified filter and key repate support to use millisecond values set
by 'filtertime', 'repeatdelay' & 'repeatrate' module parameters.
* Added module parameters 'mouseascursor' & 'mouseascursordefault' to
allow the mouse area to behave as the normal cursor-keys.  This
functionality can optionally be switched with the 'HAND' key.  (disabled
by default)
* Added module parameter 'mousedoubleclick' to make the double-click
events actually send two clicks of BTN_LEFT or BTN_RIGHT rather than
BTN_SIDE or BTN_EXTRA.  (disabled by default)

Without specifying module options, the behaviour will be the same as the
previous version except for the BTN_XXX click fix and the filter and key
repeat handling.

Cheers

Daniel



diff -ru -x '*.config' -x autoconf.h
kernel-2.6.16.base/linux-2.6.16.i686/drivers/usb/input/ati_remote.c
kernel-2.6.16/linux-2.6.16.i686/drivers/usb/input/ati_remote.c
--- kernel-2.6.16.base/linux-2.6.16.i686/drivers/usb/input/ati_remote.c
2006-03-20 05:53:29.000000000 +0000
+++ kernel-2.6.16/linux-2.6.16.i686/drivers/usb/input/ati_remote.c
2006-05-09 20:00:09.000000000 +0100
@@ -22,6 +22,27 @@
  *                Vincent Vanackere <[email protected]>
  *            Added support for the "Lola" remote contributed by:
  *                Seth Cohn <[email protected]>
+ *  Apr 2006: Daniel Sherwood
+ *            Version 2.2.2
+ *            Fixed handling of double-click BTN_XXX events that
require
+ *              the input_event timestamp to change between press and
+ *              release events.
+ *            Added module parameter 'xkeycodesonly' to prevent driver
+ *              generating keycodes that are not recognised by X
windows.
+ *              (disabled by default)
+ *            Added module parameter 'selectiverepeat' to make driver 
+ *              only generate key repeats for certain keys such and
cursor
+ *              and volume.  (disabled by default)
+ *            Modified filter and key repate support to use millisecond

+ *              values set by 'filtertime', 'repeatdelay' &
'repeatrate'
+ *              module parameters.
+ *            Added module parameters 'mouseascursor' &
'mouseascursordefault'
+ *              to allow the mouse area to behave as the normal
cursor-keys.
+ *              this functionality can optionally be switched with the 
+ *              'HAND' key.  (disabled by default)
+ *            Added module parameter 'mousedoubleclick' to make the
double-
+ *              click events actually send two clicks of BTN_LEFT or
BTN_RIGHT
+ *              rather than BTN_SIDE or BTN_EXTRA.  (disabled by
default)
  *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* * *
  *
@@ -122,6 +143,38 @@
 module_param(debug, int, 0444);
 MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
 
+static int xkeycodesonly;
+module_param(xkeycodesonly, int, 0444);
+MODULE_PARM_DESC(xkeycodesonly, "Do not use keycodes >256");
+
+static int selectiverepeat;
+module_param(selectiverepeat, int, 0444);
+MODULE_PARM_DESC(selectiverepeat, "Only apply repeat to cursors and
volume");
+
+static int filtertime = 50;
+module_param(filtertime, int, 0444);
+MODULE_PARM_DESC(filtertime, "Define the gap between events that
determines what constitutes the user pressing the same key again (ms)");
+
+static int repeatdelay = 400;
+module_param(repeatdelay, int, 0444);
+MODULE_PARM_DESC(repeatdelay, "Define the initial repeat delay (ms)");
+
+static int repeatrate = 100;
+module_param(repeatrate, int, 0444);
+MODULE_PARM_DESC(repeatrate, "Define the repeat rate (ms)");
+
+static int mouseascursor;
+module_param(mouseascursor, int, 0444);
+MODULE_PARM_DESC(mouseascursor, "Define mouse control behaviour.
0=mouse, 1=cursor, 2=auto");
+
+static int mouseascursordefault;
+module_param(mouseascursordefault, int, 0444);
+MODULE_PARM_DESC(mouseascursordefault, "Define initial mouse control
behaviour for mouseascursor=auto. 0=mouse, 1=cursor");
+
+static int mousedoubleclick;
+module_param(mousedoubleclick, int, 0444);
+MODULE_PARM_DESC(mousedoubleclick, "Double-click mouse events map to
double-clicks rather than side buttons");
+
 #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)
@@ -149,16 +202,6 @@
 /* Acceleration curve for directional control pad */
 static const 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 {
@@ -179,6 +222,7 @@
 	unsigned long old_jiffies;
 	unsigned long acc_jiffies;  /* handle acceleration */
 	unsigned int repeat_count;
+        int mouseascursorstate;
 
 	char name[NAME_BUFSIZE];
 	char phys[NAME_BUFSIZE];
@@ -190,12 +234,18 @@
 /* "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_FILTERED   2   /* Add artificial key-up events, drop
keyrepeats, don't simulate repeat */
 #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.*/
+#define KIND_REPEAT     8   /* Add artificial key-up events, drop
keyrepeats, simulate repeat */
+#define KIND_BUTTON     9   /* Add artificial key-up events after small
gap, drop keyrepeats, don't simulate repeat */
+
+#define MODE_XKEYCODESONLY    0x0100
+#define MODE_MOUSEASCURSOR    0x0200
+#define MODE_MOUSEDOUBLECLICK 0x0400
 
 /* Translation table from hardware messages to input events. */
 static const struct {
@@ -206,17 +256,29 @@
 	int value;
 }  ati_remote_tbl[] = {
 	/* Directional control pad axes */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x35, 0x70, EV_KEY, KEY_LEFT,
1},  /* left */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x36, 0x71, EV_KEY, KEY_RIGHT,
1}, /* right */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x37, 0x72, EV_KEY, KEY_UP,
1},    /* up */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x38, 0x73, EV_KEY, KEY_DOWN,
1},  /* down */
 	{KIND_ACCEL,   0x35, 0x70, EV_REL, REL_X, -1},	 /* left */
 	{KIND_ACCEL,   0x36, 0x71, EV_REL, REL_X, 1},    /* right */
 	{KIND_ACCEL,   0x37, 0x72, EV_REL, REL_Y, -1},	 /* up */
 	{KIND_ACCEL,   0x38, 0x73, EV_REL, REL_Y, 1},    /* down */
 	/* Directional control pad diagonals */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x39, 0x74, EV_KEY, KEY_UP,
1},    /* left up */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x3a, 0x75, EV_KEY, KEY_UP,
1},    /* right up */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x3c, 0x77, EV_KEY, KEY_DOWN,
1},  /* left down */
+	{KIND_REPEAT|MODE_MOUSEASCURSOR,  0x3b, 0x76, EV_KEY, KEY_DOWN,
1},  /* right down */
 	{KIND_LU,      0x39, 0x74, EV_REL, 0, 0},        /* left up */
 	{KIND_RU,      0x3a, 0x75, EV_REL, 0, 0},        /* right up */
 	{KIND_LD,      0x3c, 0x77, EV_REL, 0, 0},        /* left down */
 	{KIND_RD,      0x3b, 0x76, EV_REL, 0, 0},        /* right down
*/
 
 	/* "Mouse button" buttons */
+	{KIND_LITERAL|MODE_MOUSEASCURSOR, 0x3d, 0x78, EV_KEY,
KEY_KPENTER, 1},   /* left btn down */
+	{KIND_LITERAL|MODE_MOUSEASCURSOR, 0x3e, 0x79, EV_KEY,
KEY_KPENTER, 0},   /* left btn up */
+	{KIND_LITERAL|MODE_MOUSEASCURSOR, 0x41, 0x7c, EV_KEY,
KEY_BACKSPACE, 1}, /* right btn down */
+	{KIND_LITERAL|MODE_MOUSEASCURSOR, 0x42, 0x7d, EV_KEY,
KEY_BACKSPACE, 0}, /* right btn up */
 	{KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn
down */
 	{KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up
*/
 	{KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn
down */
@@ -224,8 +286,12 @@
 
 	/* Artificial "doubleclick" events are generated by the
hardware.
 	 * They are mapped to the "side" and "extra" mouse buttons here.
*/
-	{KIND_FILTERED, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left
dblclick */
-	{KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right
dblclick */
+	{KIND_FILTERED|MODE_MOUSEASCURSOR, 0x3f, 0x7a, EV_KEY,
KEY_KPENTER, 1},   /* left dblclick */
+	{KIND_FILTERED|MODE_MOUSEASCURSOR, 0x43, 0x7e, EV_KEY,
KEY_BACKSPACE, 1}, /* right dblclick */
+	{KIND_BUTTON|MODE_MOUSEDOUBLECLICK, 0x3f, 0x7a, EV_KEY,
BTN_LEFT, 2},     /* left dblclick */
+	{KIND_BUTTON|MODE_MOUSEDOUBLECLICK, 0x43, 0x7e, EV_KEY,
BTN_RIGHT, 2},    /* right dblclick */
+	{KIND_BUTTON, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick
*/
+	{KIND_BUTTON, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right
dblclick */
 
 	/* keyboard. */
 	{KIND_FILTERED, 0xd2, 0x0d, EV_KEY, KEY_1, 1},
@@ -249,6 +315,8 @@
 	{KIND_FILTERED, 0xdd, 0x18, EV_KEY, KEY_KPENTER, 1},    /*
"check" */
 	{KIND_FILTERED, 0xdb, 0x16, EV_KEY, KEY_MENU, 1},       /*
"menu" */
 	{KIND_FILTERED, 0xc7, 0x02, EV_KEY, KEY_POWER, 1},      /* Power
*/
+	{KIND_FILTERED|MODE_XKEYCODESONLY, 0xc8, 0x03, EV_KEY,
KEY_PROG1, 1},         /* TV */
+	{KIND_FILTERED|MODE_XKEYCODESONLY, 0xc9, 0x04, EV_KEY,
KEY_PROG2, 1},        /* DVD */
 	{KIND_FILTERED, 0xc8, 0x03, EV_KEY, KEY_TV, 1},         /* TV */
 	{KIND_FILTERED, 0xc9, 0x04, EV_KEY, KEY_DVD, 1},        /* DVD
*/
 	{KIND_FILTERED, 0xca, 0x05, EV_KEY, KEY_WWW, 1},        /* WEB
*/
@@ -256,14 +324,17 @@
 	{KIND_FILTERED, 0xcc, 0x07, EV_KEY, KEY_EDIT, 1},       /*
"hand" */
 	{KIND_FILTERED, 0xe1, 0x1c, EV_KEY, KEY_COFFEE, 1},     /*
"timer" */
 	{KIND_FILTERED, 0xe5, 0x20, EV_KEY, KEY_FRONT, 1},      /* "max"
*/
-	{KIND_FILTERED, 0xe2, 0x1d, EV_KEY, KEY_LEFT, 1},       /* left
*/
-	{KIND_FILTERED, 0xe4, 0x1f, EV_KEY, KEY_RIGHT, 1},      /* right
*/
-	{KIND_FILTERED, 0xe7, 0x22, EV_KEY, KEY_DOWN, 1},       /* down
*/
-	{KIND_FILTERED, 0xdf, 0x1a, EV_KEY, KEY_UP, 1},         /* up */
+	{KIND_REPEAT,   0xe2, 0x1d, EV_KEY, KEY_LEFT, 1},       /* left
*/
+	{KIND_REPEAT,   0xe4, 0x1f, EV_KEY, KEY_RIGHT, 1},      /* right
*/
+	{KIND_REPEAT,   0xe7, 0x22, EV_KEY, KEY_DOWN, 1},       /* down
*/
+	{KIND_REPEAT,   0xdf, 0x1a, EV_KEY, KEY_UP, 1},         /* up */
+	{KIND_FILTERED|MODE_XKEYCODESONLY, 0xe3, 0x1e, EV_KEY,
KEY_KPENTER, 1},         /* "OK" */
 	{KIND_FILTERED, 0xe3, 0x1e, EV_KEY, KEY_OK, 1},         /* "OK"
*/
-	{KIND_FILTERED, 0xce, 0x09, EV_KEY, KEY_VOLUMEDOWN, 1}, /* VOL +
*/
-	{KIND_FILTERED, 0xcd, 0x08, EV_KEY, KEY_VOLUMEUP, 1},   /* VOL -
*/
+	{KIND_REPEAT,   0xce, 0x09, EV_KEY, KEY_VOLUMEDOWN, 1}, /* VOL +
*/
+	{KIND_REPEAT,   0xcd, 0x08, EV_KEY, KEY_VOLUMEUP, 1},   /* VOL -
*/
 	{KIND_FILTERED, 0xcf, 0x0a, EV_KEY, KEY_MUTE, 1},       /* MUTE
*/
+	{KIND_FILTERED|MODE_XKEYCODESONLY, 0xd0, 0x0b, EV_KEY,
KEY_PAGEUP, 1},  /* CH + */
+	{KIND_FILTERED|MODE_XKEYCODESONLY, 0xd1, 0x0c, EV_KEY,
KEY_PAGEDOWN, 1},/* CH - */
 	{KIND_FILTERED, 0xd0, 0x0b, EV_KEY, KEY_CHANNELUP, 1},  /* CH +
*/
 	{KIND_FILTERED, 0xd1, 0x0c, EV_KEY, KEY_CHANNELDOWN, 1},/* CH -
*/
 	{KIND_FILTERED, 0xec, 0x27, EV_KEY, KEY_RECORD, 1},     /* ( o)
red */
@@ -399,7 +470,7 @@
 /*
  *	ati_remote_event_lookup
  */
-static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned
char d2)
+static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned
char d2, int mouseascursorstate)
 {
 	int i;
 
@@ -410,8 +481,15 @@
 		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;
+		    (ati_remote_tbl[i].data2 == d2)) {
+			if (   (ati_remote_tbl[i].kind &
MODE_XKEYCODESONLY && !xkeycodesonly)
+                            || (ati_remote_tbl[i].kind &
MODE_MOUSEDOUBLECLICK && !mousedoubleclick)
+                            || (ati_remote_tbl[i].kind &
MODE_MOUSEASCURSOR && mouseascursor == 0)
+                            || (ati_remote_tbl[i].kind &
MODE_MOUSEASCURSOR && mouseascursor == 2 && !mouseascursorstate) ) {
+			} else {
+				return i;
+			}
+		}
 
 	}
 	return -1;
@@ -427,6 +505,8 @@
 	struct input_dev *dev = ati_remote->idev;
 	int index, acc;
 	int remote_num;
+	int kind;
+        int multi;
 
 	/* Deal with strange looking inputs */
 	if ( (urb->actual_length != 4) || (data[0] != 0x14) ||
@@ -446,7 +526,7 @@
 	}
 
 	/* Look up event code index in translation table */
-	index = ati_remote_event_lookup(remote_num, data[1], data[2]);
+	index = ati_remote_event_lookup(remote_num, data[1], data[2],
ati_remote->mouseascursorstate);
 	if (index < 0) {
 		dev_warn(&ati_remote->interface->dev,
 			 "Unknown input from channel 0x%02x: data
%02x,%02x\n",
@@ -457,7 +537,8 @@
 		"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) {
+	kind = ati_remote_tbl[index].kind & 0x00ff;
+	if (kind == KIND_LITERAL) {
 		input_regs(dev, regs);
 		input_event(dev, ati_remote_tbl[index].type,
 			ati_remote_tbl[index].code,
@@ -468,31 +549,63 @@
 		return;
 	}
 
-	if (ati_remote_tbl[index].kind == KIND_FILTERED) {
-		/* Filter duplicate events which happen "too close"
together. */
+	if (kind == KIND_FILTERED || kind == KIND_REPEAT || kind ==
KIND_BUTTON) {
 		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++;
+			(ati_remote->old_data[1] == data[2]) ) {
+			/* Same key as before.  Check for a gap that
would indicate a release/press by the user. */
+			if (time_after(jiffies, ati_remote->old_jiffies
+ msecs_to_jiffies(filtertime))) {
+				/* This is a new press of the same key.
Start again */
+				ati_remote->repeat_count = 0;
+			} else if (ati_remote->repeat_count == 0 &&
time_after(jiffies, ati_remote->acc_jiffies +
msecs_to_jiffies(repeatdelay))) {
+				/* Key held long enough for first repeat
*/
+				ati_remote->repeat_count++;
+			} else if (ati_remote->repeat_count > 0 &&
time_after(jiffies, ati_remote->acc_jiffies +
msecs_to_jiffies(repeatrate))) {
+				/* Key held long enough for further
repeats */
+				ati_remote->repeat_count++;
+			} else {
+				/* Key held, but not long enough for
repeat */
+				ati_remote->old_jiffies = jiffies;
+				return;
+			}
 		} else {
+			/* New key, start again */
 			ati_remote->repeat_count = 0;
 		}
 
 		ati_remote->old_data[0] = data[1];
 		ati_remote->old_data[1] = data[2];
 		ati_remote->old_jiffies = jiffies;
+		ati_remote->acc_jiffies = jiffies;
 
 		if ((ati_remote->repeat_count > 0)
-		    && (ati_remote->repeat_count < 5))
+		    && (kind == KIND_FILTERED || kind == KIND_BUTTON) &&
selectiverepeat != 0) {
 			return;
+		}
 
+		if (mouseascursor == 2 && ati_remote_tbl[index].code ==
KEY_EDIT) {
+			ati_remote->mouseascursorstate =
!ati_remote->mouseascursorstate;
+			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);
+                multi = ati_remote_tbl[index].value;
+		while( multi-- ) {
+			input_regs(dev, regs);
+			input_event(dev, ati_remote_tbl[index].type,
+				ati_remote_tbl[index].code, 1);
+			if (kind == KIND_BUTTON) {
+				struct timeval then, now;
+				int loop = 1000000;
+				input_sync(dev);
+				do_gettimeofday(&then);
+				do {
+					do_gettimeofday(&now);
+				} while( timeval_compare(&now, &then) ==
0 && loop-- );
+				input_regs(dev, regs);
+			}
+			input_event(dev, ati_remote_tbl[index].type,
+				ati_remote_tbl[index].code, 0);
+			input_sync(dev);
+		}
 
 		return;
 	}
@@ -520,7 +633,7 @@
 	else acc = accel[6];
 
 	input_regs(dev, regs);
-	switch (ati_remote_tbl[index].kind) {
+	switch (kind) {
 	case KIND_ACCEL:
 		input_event(dev, ati_remote_tbl[index].type,
 			ati_remote_tbl[index].code,
@@ -544,7 +657,7 @@
 		break;
 	default:
 		dev_dbg(&ati_remote->interface->dev, "ati_remote
kind=%d\n",
-			ati_remote_tbl[index].kind);
+			kind);
 	}
 	input_sync(dev);
 
@@ -682,6 +795,8 @@
 	ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma;
 	ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
+        ati_remote->mouseascursorstate = mouseascursordefault;
+
 	/* send initialization strings */
 	if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) ||
 	    (ati_remote_sendpacket(ati_remote, 0x8007, init2))) {

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