From 74065be8cdfbcccb7e12d7e19f0a7cb35538db06 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sun, 7 Nov 2010 21:55:57 +0000
Subject: [PATCH] in_evdev: do all events in update_keycode

git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@901 be3aeb3a-fb24-0410-a615-afba39da0efa
---
 common/input.c   |  5 +--
 linux/in_evdev.c | 93 +++++++++++++++++++++++++-----------------------
 2 files changed, 49 insertions(+), 49 deletions(-)

diff --git a/common/input.c b/common/input.c
index 182e9fb..a6d331e 100644
--- a/common/input.c
+++ b/common/input.c
@@ -355,9 +355,6 @@ int in_update_keycode(int *dev_id_out, int *is_down_out, int timeout_ms)
 
 		drv = &DRV(in_devices[dev_id].drv_id);
 		result = drv->update_keycode(in_devices[dev_id].drv_data, &is_down);
-
-		/* update_keycode() might return -1 when some not interesting
-		 * event happened, like sync event for evdev. */
 		if (result >= 0)
 			break;
 
@@ -370,7 +367,7 @@ int in_update_keycode(int *dev_id_out, int *is_down_out, int timeout_ms)
 		}
 	}
 
-	if (result == -1)
+	if (result < 0)
 		return -1;
 finish:
 	/* keep track of menu key state, to allow mixing
diff --git a/linux/in_evdev.c b/linux/in_evdev.c
index edfa6ef..065676b 100644
--- a/linux/in_evdev.c
+++ b/linux/in_evdev.c
@@ -392,57 +392,60 @@ static int in_evdev_update_keycode(void *data, int *is_down)
 	struct input_event ev;
 	int rd;
 
-	rd = read(dev->fd, &ev, sizeof(ev));
-	if (rd < (int) sizeof(ev)) {
-		if (errno != EAGAIN) {
-			perror("in_evdev: error reading");
-			sleep(1);
-		}
-		goto out;
-	}
-
-	if (ev.type == EV_KEY) {
-		if (ev.value < 0 || ev.value > 1)
-			goto out;
-		ret_kc = ev.code;
-		ret_down = ev.value;
-		goto out;
-	}
-	else if (ev.type == EV_ABS)
+	while (1)
 	{
-		int lzone = dev->abs_lzone, down = 0, *last;
-
-		// map absolute to up/down/left/right
-		if (lzone != 0 && ev.code == ABS_X) {
-			if (ev.value < dev->abs_min_x + lzone)
-				down = KEY_LEFT;
-			else if (ev.value > dev->abs_max_x - lzone)
-				down = KEY_RIGHT;
-			last = &dev->abs_lastx;
-		}
-		else if (lzone != 0 && ev.code == ABS_Y) {
-			if (ev.value < dev->abs_min_y + lzone)
-				down = KEY_UP;
-			else if (ev.value > dev->abs_max_y - lzone)
-				down = KEY_DOWN;
-			last = &dev->abs_lasty;
-		}
-		else
+		rd = read(dev->fd, &ev, sizeof(ev));
+		if (rd < (int) sizeof(ev)) {
+			if (errno != EAGAIN) {
+				perror("in_evdev: error reading");
+				sleep(1);
+			}
 			goto out;
+		}
 
-		if (down == *last)
+		if (ev.type == EV_KEY) {
+			if (ev.value < 0 || ev.value > 1)
+				continue;
+			ret_kc = ev.code;
+			ret_down = ev.value;
 			goto out;
-
-		if (down == 0 || *last != 0) {
-			/* key up or direction change, return up event for old key */
-			ret_kc = *last;
-			ret_down = 0;
-			*last = 0;
+		}
+		else if (ev.type == EV_ABS)
+		{
+			int lzone = dev->abs_lzone, down = 0, *last;
+
+			// map absolute to up/down/left/right
+			if (lzone != 0 && ev.code == ABS_X) {
+				if (ev.value < dev->abs_min_x + lzone)
+					down = KEY_LEFT;
+				else if (ev.value > dev->abs_max_x - lzone)
+					down = KEY_RIGHT;
+				last = &dev->abs_lastx;
+			}
+			else if (lzone != 0 && ev.code == ABS_Y) {
+				if (ev.value < dev->abs_min_y + lzone)
+					down = KEY_UP;
+				else if (ev.value > dev->abs_max_y - lzone)
+					down = KEY_DOWN;
+				last = &dev->abs_lasty;
+			}
+			else
+				continue;
+
+			if (down == *last)
+				continue;
+
+			if (down == 0 || *last != 0) {
+				/* key up or direction change, return up event for old key */
+				ret_kc = *last;
+				ret_down = 0;
+				*last = 0;
+				goto out;
+			}
+			ret_kc = *last = down;
+			ret_down = 1;
 			goto out;
 		}
-		ret_kc = *last = down;
-		ret_down = 1;
-		goto out;
 	}
 
 out:
-- 
2.39.5