From 79ee6b65e04daca1e3884f83091a14a439133652 Mon Sep 17 00:00:00 2001
From: Eric Caruso <ejcaruso@chromium.org>
Date: Wed, 14 Mar 2018 14:15:09 -0700
Subject: [PATCH] BACKPORT: add qrtr header file

This is a userspace interface to Qualcomm IPC, which will be used
to talk to Qualcomm modems.

File copied from kernel tree at commit dbcd478f5237.

Change-Id: I797c8367ceb609fdb772c3f9b7912e0a72f5bc10
---

Brian: refreshed from commit dbcd478f5237, with delta against v4.14,
where qrtr.h exists

diff --git a/include/uapi/linux/qrtr.h b/include/uapi/linux/qrtr.h
index 5d9aab1f1893..f7e2fb3d752b 100644
--- a/include/uapi/linux/qrtr.h
+++ b/include/uapi/linux/qrtr.h
@@ -5,10 +5,45 @@
 #include <linux/socket.h>
 #include <linux/types.h>
 
+#define QRTR_NODE_BCAST	0xffffffffu
+#define QRTR_PORT_CTRL	0xfffffffeu
+
 struct sockaddr_qrtr {
 	__kernel_sa_family_t sq_family;
 	__u32 sq_node;
 	__u32 sq_port;
 };
 
+enum qrtr_pkt_type {
+	QRTR_TYPE_DATA		= 1,
+	QRTR_TYPE_HELLO		= 2,
+	QRTR_TYPE_BYE		= 3,
+	QRTR_TYPE_NEW_SERVER	= 4,
+	QRTR_TYPE_DEL_SERVER	= 5,
+	QRTR_TYPE_DEL_CLIENT	= 6,
+	QRTR_TYPE_RESUME_TX	= 7,
+	QRTR_TYPE_EXIT          = 8,
+	QRTR_TYPE_PING          = 9,
+	QRTR_TYPE_NEW_LOOKUP	= 10,
+	QRTR_TYPE_DEL_LOOKUP	= 11,
+};
+
+struct qrtr_ctrl_pkt {
+	__le32 cmd;
+
+	union {
+		struct {
+			__le32 service;
+			__le32 instance;
+			__le32 node;
+			__le32 port;
+		} server;
+
+		struct {
+			__le32 node;
+			__le32 port;
+		} client;
+	};
+} __packed;
+
 #endif /* _LINUX_QRTR_H */