Author: wmb Date: 2009-09-25 03:44:24 +0200 (Fri, 25 Sep 2009) New Revision: 1378
Modified: dev/usb2/device/net/ax8817x.fth dev/usb2/device/net/common.fth dev/usb2/device/net/ethernet.fth dev/usb2/device/net/pegasus.fth Log: USB Ethernet - improvements in startup reliability, especially for ASIX chips.
Modified: dev/usb2/device/net/ax8817x.fth =================================================================== --- dev/usb2/device/net/ax8817x.fth 2009-09-24 10:22:16 UTC (rev 1377) +++ dev/usb2/device/net/ax8817x.fth 2009-09-25 01:44:24 UTC (rev 1378) @@ -161,7 +161,9 @@ \ But, I've seen loop count as high as d# 1020. \ I increase the loop count in case the partner is slow in negotiating. \ And if there's no connection at all, let's not wait too long. - d# 2000 0 do ax-link-up? ?leave 1 ms loop + ax-mii-sw + d# 2000 0 do 1 ax-mii@ 4 and ?leave 1 ms loop + ax-mii-hw ;
: select-phy ( -- ) @@ -204,6 +206,7 @@
: rx-ctl! ( n -- ) h# 10 control! ; \ AX_CMD_WRITE_RX_CTL : ax-start-nic ( -- ) + ax-auto-neg-wait h# 8c my-args " promiscuous" $= if 1 or then rx-ctl! ; : ax-stop-nic ( -- ) 0 rx-ctl! ; @@ -219,7 +222,6 @@ ax-get-mac-address 2drop ax-set-ipg ax-init-mii - ax-auto-neg-wait ax-start-nic ;
@@ -229,6 +231,10 @@ ['] ax-start-nic to start-nic ['] ax-stop-nic to stop-nic ['] ax-get-mac-address to get-mac-address + ['] ax-mii@ to mii@ + ['] ax-mii! to mii! + ['] ax-mii-sw to mii{ + ['] ax-mii-hw to }mii vid h# 2001 = pid h# 1a00 = and if h# 009f.9d9f to ax-gpio then vid h# 07b8 = pid h# 420a = and if h# 001f.1d1f to ax-gpio then d# 2048 to /inbuf
Modified: dev/usb2/device/net/common.fth =================================================================== --- dev/usb2/device/net/common.fth 2009-09-24 10:22:16 UTC (rev 1377) +++ dev/usb2/device/net/common.fth 2009-09-25 01:44:24 UTC (rev 1378) @@ -21,6 +21,10 @@ defer reset-nic ( -- ) ' noop to reset-nic defer start-nic ( -- ) ' noop to start-nic defer stop-nic ( -- ) ' noop to stop-nic +defer mii{ ( -- ) ' noop to mii{ \ Acquire +defer }mii ( -- ) ' noop to }mii \ Release +defer mii@ ( reg -- val ) ' noop to mii@ +defer mii! ( val reg -- ) ' drop to mii@
external defer get-mac-address ( -- adr len ) ' mac-adr$ to get-mac-address
Modified: dev/usb2/device/net/ethernet.fth =================================================================== --- dev/usb2/device/net/ethernet.fth 2009-09-24 10:22:16 UTC (rev 1377) +++ dev/usb2/device/net/ethernet.fth 2009-09-25 01:44:24 UTC (rev 1378) @@ -27,43 +27,21 @@ then ;
-: init-net ( -- ) - init-nic - mac-adr$ encode-bytes " local-mac-address" property ( ) +: stop-net ( -- ) + stop-nic + end-bulk-in + free-buf ;
-external - -: close ( -- ) - opencount @ 1- 0 max opencount ! - opencount @ 0= if - end-bulk-in - stop-nic - free-buf - then +: loopback{ ( -- ) + mii{ 0 mii@ h# 4000 or 0 mii! }mii ; - -: open ( -- ok? ) - my-args " debug" $= if debug-on then - device set-target - opencount @ 0= if - first-open? if - init-net - false to first-open? - ?make-mac-address-property - then - link-up? 0= if - ." Network not connected." cr - false exit - then - init-buf - start-nic - inbuf /inbuf bulk-in-pipe begin-bulk-in - then - opencount @ 1+ opencount ! - true +: }loopback ( -- ) + mii{ 0 mii@ h# 4000 invert and 0 mii! }mii ;
+external + : copy-packet ( adr len -- len' ) dup outbuf le-w! tuck outbuf 2 + swap move 2 + ; @@ -175,6 +153,80 @@
headers
+\ This loopback test is a reliability improvement. The AX88772, +\ and perhaps other chips, sometimes loses the first received +\ packet. That's annoying, as the first packet is often a +\ reply that we care about, thus causing a timeout and retry. +\ We work around that by sending ourselves a few loopback packets +\ until we receive one. In most cases, the first loopback packet +\ is received correctly, and if not, the second one is okay. +\ We try 5 times just to be safe, exiting as soon as we "win". + +0 value scratch-buf +: clear-rx ( -- ) + d# 200 0 do + scratch-buf d# 2000 read -2 = ?leave + loop +; + +create test-packet + h# ff c, h# ff c, h# ff c, h# ff c, h# ff c, h# ff c, \ Dst - broadcast + h# 01 c, h# 02 c, h# 03 c, h# 04 c, h# 05 c, h# 06 c, \ Src - junk + h# 00 c, h# 00 c, \ Type - junk + here h# 40 dup allot erase \ Junk data +here test-packet - constant /tp + +: try-loopback? ( -- okay? ) + test-packet /tp write /tp <> if false exit then + 2 ms + scratch-buf d# 2000 read /tp = +; +: loopback-test ( -- ) + d# 2000 alloc-mem to scratch-buf + loopback{ + clear-rx + 5 0 do try-loopback? ?leave loop + }loopback + scratch-buf d# 2000 free-mem +; + +external + +: close ( -- ) + opencount @ 1- 0 max opencount ! + opencount @ 0= if stop-net then +; + +: open ( -- ok? ) + my-args " debug" $= if debug-on then + device set-target + opencount @ 0= if + init-buf + inbuf /inbuf bulk-in-pipe begin-bulk-in + + first-open? if + false to first-open? + init-nic + mac-adr$ encode-bytes " local-mac-address" property ( ) + ?make-mac-address-property + else + start-nic + then + + link-up? 0= if + ." Network not connected." cr + stop-net + false exit + then + + loopback-test + then + opencount @ 1+ opencount ! + true +; + +headers + : init ( -- ) init device set-target
Modified: dev/usb2/device/net/pegasus.fth =================================================================== --- dev/usb2/device/net/pegasus.fth 2009-09-24 10:22:16 UTC (rev 1377) +++ dev/usb2/device/net/pegasus.fth 2009-09-25 01:44:24 UTC (rev 1378) @@ -115,7 +115,7 @@
: pg-sync-link-status ( -- ) \ Delayed loop until link-up is detected. - 5 0 do pg-link-up? if unloop exit then d# 1000 ms loop + d# 500 0 do pg-link-up? if unloop exit then d# 10 ms loop ;
: pg-init-nic ( -- ) @@ -129,6 +129,7 @@ ;
: pg-start-nic ( -- ) + pg-sync-link-status \ force 100Mbps full-duplex h# 0130c9 ec0 3 pg-write-reg ; @@ -151,6 +152,8 @@ ['] pg-stop-nic to stop-nic ['] pg-get-mac-address to get-mac-address ['] pg-unwrap-msg to unwrap-msg + ['] pg-mii@ to mii@ + ['] pg-mii! to mii! ;
: init ( -- ) init vid pid pegasus? if init-pegasus then ;
openfirmware@openfirmware.info
-
svn＠openfirmware.info