From 9b63845669056ace2ca50a2c406ce6cf3657ec74 Mon Sep 17 00:00:00 2001
From: Nick Foster <nick@nerdnetworks.org>
Date: Tue, 27 Jul 2010 20:11:05 -0700
Subject: Ethernet mods for activity LED.

---
 firmware/microblaze/lib/eth_mac.c     |  2 +-
 firmware/microblaze/lib/pic.c         |  2 +-
 firmware/microblaze/usrp2p/eth_phy.h  | 25 +++++++++++++++++++++++++
 firmware/microblaze/usrp2p/ethernet.c |  8 ++++++--
 4 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/firmware/microblaze/lib/eth_mac.c b/firmware/microblaze/lib/eth_mac.c
index cd0179deb..034a4d494 100644
--- a/firmware/microblaze/lib/eth_mac.c
+++ b/firmware/microblaze/lib/eth_mac.c
@@ -104,7 +104,7 @@ eth_mac_miim_write(int addr, int value)
   eth_mac->miitx_data = value;
   eth_mac->miicommand = MIIC_WCTRLDATA;
 
-  //printf("MIIM-WRITE ADDR 0x%x VAL 0x%x\n",addr,value);
+//  printf("MIIM-WRITE ADDR 0x%x VAL 0x%x\n",addr,value);
   while((eth_mac->miistatus & MIIS_BUSY) != 0)
     ;
 }
diff --git a/firmware/microblaze/lib/pic.c b/firmware/microblaze/lib/pic.c
index 4575bd775..e89d2b755 100644
--- a/firmware/microblaze/lib/pic.c
+++ b/firmware/microblaze/lib/pic.c
@@ -44,7 +44,7 @@ pic_init(void)
   // uP is level triggered
 
   pic_regs->mask = ~0;				       // mask all interrupts
-  pic_regs->edge_enable = PIC_ONETIME_INT | PIC_PHY_INT;
+  pic_regs->edge_enable = PIC_ONETIME_INT;
   pic_regs->polarity = ~0 & ~PIC_PHY_INT;	       // rising edge
   pic_regs->pending = ~0;			       // clear all pending ints
 }
diff --git a/firmware/microblaze/usrp2p/eth_phy.h b/firmware/microblaze/usrp2p/eth_phy.h
index 9328debee..d233e96e8 100644
--- a/firmware/microblaze/usrp2p/eth_phy.h
+++ b/firmware/microblaze/usrp2p/eth_phy.h
@@ -42,6 +42,7 @@
 #define PHY_INT_MASK     24
 #define PHY_INT_STATUS   25
 #define PHY_PHY_STATUS   26
+#define PHY_LED2         28
 
 /* Bit definitions for some of the registers above */
 
@@ -207,4 +208,28 @@
 #define PHY_INT_MDIO_SYNC_LOST (1 << 9)
 #define PHY_INT_TDR_IP_PHONE   (1 << 10)
 
+/* PHY LED status register 2 (used for controlling link LED for activity light) */
+#define PHY_LED_TXRX_LSB           12
+#define PHY_LED_LINK_LSB           8
+#define PHY_LED_100_LSB            4
+#define PHY_LED_1000_LSB           0
+
+#define LED_1000                   0
+#define LED_100_TX                 1
+#define LED_10                     2
+#define LED_1000_ON_100_BLINK      3
+#define LED_LINK                   4
+#define LED_TX                     5
+#define LED_RX                     6
+#define LED_ACTIVITY               7
+#define LED_FULLDUPLEX             8
+#define LED_COLLISION              9
+#define LED_LINK_ON_ACTIVITY_BLINK 10
+#define LED_LINK_ON_RX_BLINK       11
+#define LED_FULL_DUPLEX_ON_COLLISION_BLINK 12
+#define LED_BLINK                  13
+#define LED_ON                     14
+#define LED_OFF                    15
+
+
 #endif /* INCLUDED_ETH_PHY_H */
diff --git a/firmware/microblaze/usrp2p/ethernet.c b/firmware/microblaze/usrp2p/ethernet.c
index 134650326..07224d3b7 100644
--- a/firmware/microblaze/usrp2p/ethernet.c
+++ b/firmware/microblaze/usrp2p/ethernet.c
@@ -29,7 +29,7 @@
 #include <i2c.h>
 #include "usrp2/fw_common.h"
 
-#define VERBOSE 1
+#define VERBOSE 0
 
 static ethernet_t ed_state;
 static ethernet_link_changed_callback_t ed_callback = 0;
@@ -222,9 +222,13 @@ ethernet_init(void)
      | PHY_INT_RX_STATUS_CHANGE
      );
 
-  eth_mac_miim_read(PHY_INT_STATUS);
+  eth_mac_miim_read(PHY_INT_STATUS); //clear interrupts
   eth_mac_miim_write(PHY_INT_MASK, mask);	// enable the ones we want
 
+	//set the LED behavior to activity instead of link
+	unsigned led = (LED_ACTIVITY << PHY_LED_LINK_LSB);
+	eth_mac_miim_write(PHY_LED2, led);
+
   pic_register_handler(IRQ_PHY, eth_phy_irq_handler);
 
   // Advertise our flow control configuation.
-- 
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