[U-Boot] [PATCH v6 2/2] NET: Add net_busy_flag

[Jim Lin]

This flag is to have console aware that NET transfer is running or not.

Signed-off-by: Jim Lin <jilin at nvidia.com>
---
Changes in v2:
 1. Change configuration name from CONFIG_CTRLC_POLL_MS to CONFIG_CTRLC_POLL_S.
 2. New code will be executed only when CONFIG_CTRLC_POLL_S is defined in
    configuration header file.
 3. Add description in README.console.
Changes in v3:
 1. Move changes to common/usb_kbd.c and doc/README.usb
 2. Rename config setting to CONFIG_USBKB_TESTC_PERIOD.
 3. Remove slow response on USB-keyboard input when TFTP boot is not running.
Changes in v4:
 1. Remove changes in doc/README.usb, common/usb_kbd.c and
    CONFIG_USBKB_TESTC_PERIOD 
 2. Modify net/net.c
Changes in v5:
 1. Change variable name to ctrlc_t_start.
 2. Use two calls of get_timer(0) to get time gap.
Changes in v6:
 1. Add net_busy_flag to make console aware NET transfer is running or not.

 net/net.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/net/net.c b/net/net.c
index df94789..76d8ea9 100644
--- a/net/net.c
+++ b/net/net.c
@@ -207,6 +207,8 @@ static int net_check_prereq(enum proto_t protocol);
 
 static int NetTryCount;
 
+int net_busy_flag;
+
 /**********************************************************************/
 
 static int on_bootfile(const char *name, const char *value, enum env_op op,
@@ -341,6 +343,7 @@ int NetLoop(enum proto_t protocol)
 		eth_init_state_only(bd);
 
 restart:
+	net_busy_flag = 0;
 	net_set_state(NETLOOP_CONTINUE);
 
 	/*
@@ -454,6 +457,8 @@ restart:
 #endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */
 #endif /* CONFIG_MII, ... */
 
+	net_busy_flag = 1;
+
 	/*
 	 *	Main packet reception loop.  Loop receiving packets until
 	 *	someone sets `net_state' to a state that terminates.
@@ -558,6 +563,7 @@ restart:
 	}
 
 done:
+	net_busy_flag = 0;
 #ifdef CONFIG_CMD_TFTPPUT
 	/* Clear out the handlers */
 	net_set_udp_handler(NULL);
-- 
1.7.7