From 42fbabe9d12d2a0a9c69a3b228850f5a93b7c470 Mon Sep 17 00:00:00 2001
From: yellows8 <yellows8@users.noreply.github.com>
Date: Wed, 15 Nov 2017 22:34:07 -0500
Subject: [PATCH] Added nvQueryEvent().
---
nx/include/switch/services/nv.h | 1 +
nx/source/services/nv.c | 37 +++++++++++++++++++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/nx/include/switch/services/nv.h b/nx/include/switch/services/nv.h
index 5a8d974d..dac51169 100644
--- a/nx/include/switch/services/nv.h
+++ b/nx/include/switch/services/nv.h
@@ -12,4 +12,5 @@ void nvExit(void);
Result nvOpen(u32 *fd, const char *devicepath);
Result nvIoctl(u32 fd, u32 request, void* argp);
Result nvClose(u32 fd);
+Result nvQueryEvent(u32 fd, u32 event_id, Handle *handle_out);
diff --git a/nx/source/services/nv.c b/nx/source/services/nv.c
index 84c43c35..fe9cdf7c 100644
--- a/nx/source/services/nv.c
+++ b/nx/source/services/nv.c
@@ -297,3 +297,40 @@ Result nvClose(u32 fd) {
return rc;
}
+Result nvQueryEvent(u32 fd, u32 event_id, Handle *handle_out) {
+ IpcCommand c;
+ ipcInitialize(&c);
+
+ struct {
+ u64 magic;
+ u64 cmd_id;
+ u32 fd;
+ u32 event_id;
+ } *raw;
+
+ raw = ipcPrepareHeader(&c, sizeof(*raw));
+ raw->magic = SFCI_MAGIC;
+ raw->cmd_id = 4;
+ raw->fd = fd;
+ raw->event_id = event_id;
+
+ Result rc = ipcDispatch(g_nvServiceSession);
+
+ if (R_SUCCEEDED(rc)) {
+ IpcCommandResponse r;
+ ipcParseResponse(&r);
+
+ struct {
+ u64 magic;
+ u64 result;
+ u32 error;
+ } *resp = r.Raw;
+
+ rc = resp->result;
+ if (R_SUCCEEDED(rc)) rc = resp->error;
+ if (R_SUCCEEDED(rc)) *handle_out = r.Handles[0];
+ }
+
+ return rc;
+}
+