Merge git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: make EVIOCGSND return meaningful data
  Input: ressurect EVIOCGREP and EVIOCSREP
  Input: psmouse - fix new device detection logic
  Input: move input_device_id to mod_devicetable.h
  Input: allow using several chords for braille
  Input: allow passing NULL to input_free_device()
  Input: spitzkbd - fix the reversed Address and Calender keys
  Input: ads7846 - improve filtering for thumb press accuracy
  Input: ads7846 - report 0 pressure value along with pen up event
  Input: ads7846 - handle IRQs that were latched during disabled IRQs
  Input: ads7846 - miscellaneous fixes
  Input: ads7846 - use msleep() instead of udelay() in suspend
  Input: ads7846 - debouncing and rudimentary sample filtering
  Input: ads7846 - power down ADC a bit later
  Input: ads7846 - add pen_down sysfs attribute
  Input: wistron - add support for Fujitsu N3510
  Input: wistron - add signature for Amilo M7400

1 files changed, 28 insertions, 10 deletions

diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 935670a3cd9..5755b7e5f18 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -860,9 +860,32 @@ static void k_slock(struct vc_data *vc, unsigned char value, char up_flag, struc
 }
 
 /* by default, 300ms interval for combination release */
-static long brl_timeout = 300;
-MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for combination on first release, < 0 for dead characters)");
-module_param(brl_timeout, long, 0644);
+static unsigned brl_timeout = 300;
+MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)");
+module_param(brl_timeout, uint, 0644);
+
+static unsigned brl_nbchords = 1;
+MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)");
+module_param(brl_nbchords, uint, 0644);
+
+static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag, struct pt_regs *regs)
+{
+	static unsigned long chords;
+	static unsigned committed;
+
+	if (!brl_nbchords)
+		k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag, regs);
+	else {
+		committed |= pattern;
+		chords++;
+		if (chords == brl_nbchords) {
+			k_unicode(vc, BRL_UC_ROW | committed, up_flag, regs);
+			chords = 0;
+			committed = 0;
+		}
+	}
+}
+
 static void k_brl(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
 {
 	static unsigned pressed,committing;
@@ -882,11 +905,6 @@ static void k_brl(struct vc_data *vc, unsigned char value, char up_flag, struct
 	if (value > 8)
 		return;
 
-	if (brl_timeout < 0) {
-		k_deadunicode(vc, BRL_UC_ROW | (1 << (value - 1)), up_flag, regs);
-		return;
-	}
-
 	if (up_flag) {
 		if (brl_timeout) {
 			if (!committing ||
@@ -897,13 +915,13 @@ static void k_brl(struct vc_data *vc, unsigned char value, char up_flag, struct
 			pressed &= ~(1 << (value - 1));
 			if (!pressed) {
 				if (committing) {
-					k_unicode(vc, BRL_UC_ROW | committing, 0, regs);
+					k_brlcommit(vc, committing, 0, regs);
 					committing = 0;
 				}
 			}
 		} else {
 			if (committing) {
-				k_unicode(vc, BRL_UC_ROW | committing, 0, regs);
+				k_brlcommit(vc, committing, 0, regs);
 				committing = 0;
 			}
 			pressed &= ~(1 << (value - 1));