[U-Boot] [PATCH 2/2] [RFC]new command: wol - enable command

[Lothar Felten]

This patch enables the WoL command

Signed-off-by: Lothar Felten <lothar.felten at gmail.com>
---
 cmd/Kconfig   |  5 +++++
 cmd/net.c     | 14 ++++++++++++++
 include/net.h |  3 ++-
 net/Makefile  |  1 +
 net/net.c     | 19 +++++++++++++++++++
 5 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/cmd/Kconfig b/cmd/Kconfig
index bc1d2f31c0..ed9d82fe71 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1142,6 +1142,11 @@ config CMD_RARP
 	help
 	  Boot image via network using RARP/TFTP protocol
 
+config CMD_WOL
+	bool "wol"
+	help
+	  Wait for wake-on-lan packages
+
 config CMD_NFS
 	bool "nfs"
 	default y
diff --git a/cmd/net.c b/cmd/net.c
index 67888d4e18..2e963b19c2 100644
--- a/cmd/net.c
+++ b/cmd/net.c
@@ -88,6 +88,20 @@ U_BOOT_CMD(
 );
 #endif
 
+#if defined(CONFIG_CMD_WOL)
+int do_wol(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	return netboot_common(WOL, cmdtp, argc, argv);
+}
+
+U_BOOT_CMD(
+	wol,	2,	1,	do_wol,
+	"wait for an incoming wake-on-lan packet",
+	"[timeout]\n"
+	"timeout is in seconds"
+);
+#endif
+
 #if defined(CONFIG_CMD_DHCP)
 static int do_dhcp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
diff --git a/include/net.h b/include/net.h
index 3469811aa0..0b4c2438a5 100644
--- a/include/net.h
+++ b/include/net.h
@@ -344,6 +344,7 @@ struct vlan_ethernet_hdr {
 
 #define PROT_IP		0x0800		/* IP protocol			*/
 #define PROT_ARP	0x0806		/* IP ARP protocol		*/
+#define PROT_WOL	0x0842		/* IP WOL protocol		*/
 #define PROT_RARP	0x8035		/* IP ARP protocol		*/
 #define PROT_VLAN	0x8100		/* IEEE 802.1q protocol		*/
 #define PROT_IPV6	0x86dd		/* IPv6 over bluebook		*/
@@ -535,7 +536,7 @@ extern int		net_restart_wrap;	/* Tried all network devices */
 
 enum proto_t {
 	BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP,
-	TFTPSRV, TFTPPUT, LINKLOCAL
+	TFTPSRV, TFTPPUT, LINKLOCAL, WOL
 };
 
 extern char	net_boot_file_name[1024];/* Boot File name */
diff --git a/net/Makefile b/net/Makefile
index ce6e5adfa5..993b18f24c 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_CMD_PING) += ping.o
 obj-$(CONFIG_CMD_RARP) += rarp.o
 obj-$(CONFIG_CMD_SNTP) += sntp.o
 obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o
+obj-$(CONFIG_CMD_WOL)  += wol.o
 
 # Disable this warning as it is triggered by:
 # sprintf(buf, index ? "foo%d" : "foo", index)
diff --git a/net/net.c b/net/net.c
index 8a9b69c6b0..e0088d352c 100644
--- a/net/net.c
+++ b/net/net.c
@@ -78,6 +78,12 @@
  *			- own IP address
  *	We want:	- network time
  *	Next step:	none
+ *
+ * WOL:
+ *
+ *	Prerequisites:	- own ethernet address
+ *	We want:	- magic packet to initiate action
+ *	Next step:	none
  */
 
 
@@ -107,6 +113,9 @@
 #if defined(CONFIG_CMD_SNTP)
 #include "sntp.h"
 #endif
+#if defined(CONFIG_CMD_WOL)
+#include "wol.h"
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -508,6 +517,11 @@ restart:
 		case LINKLOCAL:
 			link_local_start();
 			break;
+#endif
+#if defined(CONFIG_CMD_WOL)
+		case WOL:
+			wol_start();
+			break;
 #endif
 		default:
 			break;
@@ -1274,6 +1288,11 @@ void net_process_received_packet(uchar *in_packet, int len)
 				      ntohs(ip->udp_src),
 				      ntohs(ip->udp_len) - UDP_HDR_SIZE);
 		break;
+#ifdef CONFIG_CMD_WOL
+	case PROT_WOL:
+		wol_receive(ip, len);
+		break;
+#endif
 	}
 }
 
-- 
2.14.1