From fd14086b3b246c7b5fed0cd8a09d5206481ef645 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Sat, 20 Feb 2016 19:34:25 +0000
Subject: [PATCH] devsys: wire up the network hooks

---
 Kernel/devsys.c                   | 25 +++++++++++++++++++++++++
 Kernel/include/devsys.h           |  1 +
 Kernel/include/kernel.h           |  6 ++++++
 Kernel/platform-z80pack/devices.c |  2 +-
 4 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/Kernel/devsys.c b/Kernel/devsys.c
index 54e9f8c5..451035c8 100644
--- a/Kernel/devsys.c
+++ b/Kernel/devsys.c
@@ -3,6 +3,8 @@
 #include <kdata.h>
 #include <devsys.h>
 #include <audio.h>
+#include <netdev.h>
+#include <net_native.h>
 
 /*
  *	System devices:
@@ -12,6 +14,7 @@
  *	Minor	2	zero
  *	Minor	3	proc
  *	Minor	64	audio
+ *	Minor	65	net_native
  *
  *	Use Minor 128+ for platform specific devices
  */
@@ -38,6 +41,10 @@ int sys_read(uint8_t minor, uint8_t rawflag, uint8_t flag)
 	if (udata.u_offset >= PTABSIZE * sizeof(struct p_tab))
 		return 0;
 	return uputsys(addr + udata.u_offset, udata.u_count);
+#ifdef CONFIG_NET_NATIVE
+  case 65:
+    return netdev_read(flag);
+#endif
   default:
     udata.u_error = ENXIO;
     return -1;
@@ -58,6 +65,10 @@ int sys_write(uint8_t minor, uint8_t rawflag, uint8_t flag)
   case 3:
     udata.u_error = EINVAL;
     return -1;
+#ifdef CONFIG_NET_NATIVE
+  case 65:
+    return netdev_write(flag);
+#endif
   default:
     udata.u_error = ENXIO;
     return -1;
@@ -72,6 +83,10 @@ int sys_ioctl(uint8_t minor, uarg_t request, char *data)
 #ifdef CONFIG_AUDIO
 	if (minor == 64)
 		return audio_ioctl(request, data);
+#endif
+#ifdef CONFIG_NET_NATIVE
+	if (minor == 65)
+		return netdev_ioctl(request, data);
 #endif
 	if (minor != 3) {
           udata.u_error = ENOTTY;
@@ -93,3 +108,13 @@ int sys_ioctl(uint8_t minor, uarg_t request, char *data)
 	}
 	return 0;
 }
+
+int sys_close(uint8_t minor)
+{
+	used(minor);
+#ifdef CONFIG_NET_NATIVE
+	if (minor == 65)
+		return netdev_close(minor);
+#endif
+	return 0;
+}
\ No newline at end of file
diff --git a/Kernel/include/devsys.h b/Kernel/include/devsys.h
index cef99dac..b08da15e 100644
--- a/Kernel/include/devsys.h
+++ b/Kernel/include/devsys.h
@@ -1,3 +1,4 @@
 extern int sys_read(uint8_t minor, uint8_t rawflag, uint8_t flag);
 extern int sys_write(uint8_t minor, uint8_t rawflag, uint8_t flag);
 extern int sys_ioctl(uint8_t minor, uarg_t request, char *data);
+extern int sys_close(uint8_t minor);
diff --git a/Kernel/include/kernel.h b/Kernel/include/kernel.h
index ee540125..f5955af3 100644
--- a/Kernel/include/kernel.h
+++ b/Kernel/include/kernel.h
@@ -565,6 +565,8 @@ struct s_argblk {
 #define EOPNOTSUPP	44		/* Operation not supported on transport
                                            endpoint */
 #define ECONNRESET	45		/* Connection reset by peer */
+#define ENETDOWN	46		/* Network is down */
+#define EMSGSIZE	47		/* Message too long */
 
 /*
  * ioctls for kernel internal operations start at 0x8000 and cannot be issued
@@ -603,6 +605,10 @@ struct s_argblk {
  *	Graphics ioctls 03xx (see graphics.h)
  */
 
+/*
+ *	Networking ioctls 04xx (see net_native.h)
+ */
+
 /*
  *	System info shared with user space
  */
diff --git a/Kernel/platform-z80pack/devices.c b/Kernel/platform-z80pack/devices.c
index d44f9ca7..e145828a 100644
--- a/Kernel/platform-z80pack/devices.c
+++ b/Kernel/platform-z80pack/devices.c
@@ -22,7 +22,7 @@ struct devsw dev_tab[] =  /* The device driver switch table */
   /* 3: /dev/lpr	Printer devices */
   {  lpr_open,     lpr_close,   no_rdwr,   lpr_write,  no_ioctl  },
   /* 4: /dev/mem etc	System devices (one offs) */
-  {  no_open,      no_close,    sys_read, sys_write, sys_ioctl  },
+  {  no_open,      sys_close,   sys_read, sys_write, sys_ioctl  },
   /* Pack to 7 with nxio if adding private devices and start at 8 */
 };
 
-- 
2.34.1