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* [PATCH] adbhid: enable KEY_FN key reporting
@ 2007-07-16 20:53 Aristeu Rozanski
  2007-07-16 23:20 ` Benjamin Herrenschmidt
  0 siblings, 1 reply; 4+ messages in thread
From: Aristeu Rozanski @ 2007-07-16 20:53 UTC (permalink / raw)
  To: linuxppc-dev; +Cc: Paul Mackerras

When a Fn key is used in combination with another key in ADB keyboards
it will generate a Fn event and then a second event that can be a
different key than pressed (Fn + F1 for instance can generate Fn +
brightness down if it's configured like that). This patch enables the
reporting of the Fn key to the input system.

As Fn is a dead key for most purposes, it's useful to report it so
applications can make use of it. One example is apple_mouse
(https://jake.ruivo.org/uinputd/trunk/apple_mouse/) that emulates the
second and third keys using a combination of keyboard keys and the mouse
button. Other applications may use the KEY_FN as a modifier aswell.
I've been updating and using this patch for months without problems.

Signed-off-by: Aristeu Rozanski <aris@ruivo.org>

--- linus-2.6.orig/drivers/macintosh/adbhid.c	2007-05-11 10:09:13.000000000 -0400
+++ linus-2.6/drivers/macintosh/adbhid.c	2007-05-11 10:09:19.000000000 -0400
@@ -70,7 +70,7 @@
 #define ADB_KEY_POWER_OLD	0x7e
 #define ADB_KEY_POWER		0x7f
 
-u8 adb_to_linux_keycodes[128] = {
+u16 adb_to_linux_keycodes[128] = {
 	/* 0x00 */ KEY_A, 		/*  30 */
 	/* 0x01 */ KEY_S, 		/*  31 */
 	/* 0x02 */ KEY_D,		/*  32 */
@@ -134,7 +134,7 @@
 	/* 0x3c */ KEY_RIGHT,		/* 106 */
 	/* 0x3d */ KEY_DOWN,		/* 108 */
 	/* 0x3e */ KEY_UP,		/* 103 */
-	/* 0x3f */ 0,
+	/* 0x3f */ KEY_FN,		/* 0x1d0 */
 	/* 0x40 */ 0,
 	/* 0x41 */ KEY_KPDOT,		/*  83 */
 	/* 0x42 */ 0,
@@ -208,7 +208,7 @@
 	int original_handler_id;
 	int current_handler_id;
 	int mouse_kind;
-	unsigned char *keycode;
+	u16 *keycode;
 	char name[64];
 	char phys[32];
 	int flags;
@@ -275,7 +275,7 @@
 adbhid_input_keycode(int id, int keycode, int repeat)
 {
 	struct adbhid *ahid = adbhid[id];
-	int up_flag;
+	int up_flag, key;
 
 	up_flag = (keycode & 0x80);
 	keycode &= 0x7f;
@@ -321,8 +321,7 @@
 			}
 		} else
 			ahid->flags |= FLAG_FN_KEY_PRESSED;
-		/* Swallow the key press */
-		return;
+		break;
 	case ADB_KEY_DEL:
 		/* Emulate Fn+delete = forward delete */
 		if (ahid->flags & FLAG_FN_KEY_PRESSED) {
@@ -336,9 +335,9 @@
 #endif /* CONFIG_PPC_PMAC */
 	}
 
-	if (adbhid[id]->keycode[keycode]) {
-		input_report_key(adbhid[id]->input,
-				 adbhid[id]->keycode[keycode], !up_flag);
+ 	key = adbhid[id]->keycode[keycode];
+ 	if (key) {
+ 		input_report_key(adbhid[id]->input, key, !up_flag);
 		input_sync(adbhid[id]->input);
 	} else
 		printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
@@ -757,8 +756,8 @@
 		input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
 		input_dev->ledbit[0] = BIT(LED_SCROLLL) | BIT(LED_CAPSL) | BIT(LED_NUML);
 		input_dev->event = adbhid_kbd_event;
-		input_dev->keycodemax = 127;
-		input_dev->keycodesize = 1;
+		input_dev->keycodemax = KEY_FN;
+		input_dev->keycodesize = sizeof(hid->keycode[0]);
 		break;
 
 	case ADB_MOUSE:

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [PATCH] adbhid: enable KEY_FN key reporting
@ 2006-08-08 15:41 Aristeu Sergio Rozanski Filho
  2006-09-20 13:44 ` Aristeu Sergio Rozanski Filho
  0 siblings, 1 reply; 4+ messages in thread
From: Aristeu Sergio Rozanski Filho @ 2006-08-08 15:41 UTC (permalink / raw)
  To: linuxppc-dev

This patch enables the KEY_FN reporting on ADB based machines. This is a
needed step to move special key sequences handling to user space and to
allow the usage of Fn key to other purposes. I've been running this for
some days without problems.

Signed-off-by: Aristeu S. Rozanski F. <aris@cathedrallabs.org>
Acked-by: Michael Hanselmann <linux-kernel@hansmi.ch>

Index: ppc-2.6/drivers/macintosh/adbhid.c
===================================================================
--- ppc-2.6.orig/drivers/macintosh/adbhid.c	2006-08-04 08:53:20.000000000 -0300
+++ ppc-2.6/drivers/macintosh/adbhid.c	2006-08-04 09:45:43.000000000 -0300
@@ -70,7 +70,7 @@
 #define ADB_KEY_POWER_OLD	0x7e
 #define ADB_KEY_POWER		0x7f
 
-u8 adb_to_linux_keycodes[128] = {
+u16 adb_to_linux_keycodes[128] = {
 	/* 0x00 */ KEY_A, 		/*  30 */
 	/* 0x01 */ KEY_S, 		/*  31 */
 	/* 0x02 */ KEY_D,		/*  32 */
@@ -134,7 +134,7 @@
 	/* 0x3c */ KEY_RIGHT,		/* 106 */
 	/* 0x3d */ KEY_DOWN,		/* 108 */
 	/* 0x3e */ KEY_UP,		/* 103 */
-	/* 0x3f */ 0,
+	/* 0x3f */ KEY_FN,		/* 0x1d0 */
 	/* 0x40 */ 0,
 	/* 0x41 */ KEY_KPDOT,		/*  83 */
 	/* 0x42 */ 0,
@@ -208,7 +208,7 @@
 	int original_handler_id;
 	int current_handler_id;
 	int mouse_kind;
-	unsigned char *keycode;
+	u16 *keycode;
 	char name[64];
 	char phys[32];
 	int flags;
@@ -275,7 +275,7 @@
 adbhid_input_keycode(int id, int keycode, int repeat, struct pt_regs *regs)
 {
 	struct adbhid *ahid = adbhid[id];
-	int up_flag;
+	int up_flag, key;
 
 	up_flag = (keycode & 0x80);
 	keycode &= 0x7f;
@@ -322,8 +322,7 @@
 			}
 		} else
 			ahid->flags |= FLAG_FN_KEY_PRESSED;
-		/* Swallow the key press */
-		return;
+		break;
 	case ADB_KEY_DEL:
 		/* Emulate Fn+delete = forward delete */
 		if (ahid->flags & FLAG_FN_KEY_PRESSED) {
@@ -337,10 +336,10 @@
 #endif /* CONFIG_PPC_PMAC */
 	}
 
-	if (adbhid[id]->keycode[keycode]) {
+	key = adbhid[id]->keycode[keycode];
+	if (key) {
 		input_regs(adbhid[id]->input, regs);
-		input_report_key(adbhid[id]->input,
-				 adbhid[id]->keycode[keycode], !up_flag);
+		input_report_key(adbhid[id]->input, key, !up_flag);
 		input_sync(adbhid[id]->input);
 	} else
 		printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
@@ -764,8 +763,8 @@
 		input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
 		input_dev->ledbit[0] = BIT(LED_SCROLLL) | BIT(LED_CAPSL) | BIT(LED_NUML);
 		input_dev->event = adbhid_kbd_event;
-		input_dev->keycodemax = 127;
-		input_dev->keycodesize = 1;
+		input_dev->keycodemax = KEY_FN;
+		input_dev->keycodesize = sizeof(hid->keycode[0]);
 		break;
 
 	case ADB_MOUSE:

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2007-07-16 23:20 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-07-16 20:53 [PATCH] adbhid: enable KEY_FN key reporting Aristeu Rozanski
2007-07-16 23:20 ` Benjamin Herrenschmidt
  -- strict thread matches above, loose matches on Subject: below --
2006-08-08 15:41 Aristeu Sergio Rozanski Filho
2006-09-20 13:44 ` Aristeu Sergio Rozanski Filho

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