From 560a2768ee675ed0abd685f062eef1eab58a304f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 29 Jul 2004 09:08:35 +0000
Subject: Add EPoX endian quirk for buggy keyboards

---
 hidd/sdp.c | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/hidd/sdp.c b/hidd/sdp.c
index 31020130..24ed4b53 100644
--- a/hidd/sdp.c
+++ b/hidd/sdp.c
@@ -32,14 +32,6 @@
 
 #include <stdio.h>
 #include <errno.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <syslog.h>
-#include <getopt.h>
-#include <sys/time.h>
-#include <sys/poll.h>
-#include <sys/ioctl.h>
 #include <sys/socket.h>
 
 #include <bluetooth/bluetooth.h>
@@ -49,6 +41,31 @@
 
 #include "hidd.h"
 
+static void epox_endian_quirk(unsigned char *data, int size)
+{
+	/* USAGE_PAGE (Keyboard)	05 07
+	 * USAGE_MINIMUM (0)		19 00
+	 * USAGE_MAXIMUM (65280)	2A 00 FF   <= must be FF 00
+	 * LOGICAL_MINIMUM (0)		15 00
+	 * LOGICAL_MAXIMUM (65280)	26 00 FF   <= must be FF 00
+	 */
+	unsigned char pattern[] = { 0x05, 0x07, 0x19, 0x00, 0x2a, 0x00, 0xff,
+						0x15, 0x00, 0x26, 0x00, 0xff };
+	int i;
+
+	if (!data)
+		return;
+
+	for (i = 0; i < size - sizeof(pattern); i++) {
+		if (!memcmp(data + i, pattern, sizeof(pattern))) {
+			data[i + 5] = 0xff;
+			data[i + 6] = 0x00;
+			data[i + 10] = 0xff;
+			data[i + 11] = 0x00;
+		}
+	}
+}
+
 int get_hid_device_info(bdaddr_t *src, bdaddr_t *dst, struct hidp_connadd_req *req)
 {
 	uint32_t range = 0x0000ffff;
@@ -140,6 +157,7 @@ int get_hid_device_info(bdaddr_t *src, bdaddr_t *dst, struct hidp_connadd_req *r
 		if (req->rd_data) {
 			memcpy(req->rd_data, (unsigned char *) pdlist->val.str, pdlist->unitSize);
 			req->rd_size = pdlist->unitSize;
+			epox_endian_quirk(req->rd_data, req->rd_size);
 		}
 	}
 
-- 
cgit