From fda97c65bf12e1f817b99959b8d3a7ab0ae52567 Mon Sep 17 00:00:00 2001
From: "(no author)" <(no author)@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>
Date: Tue, 8 Aug 2006 22:35:42 +0000
Subject: add automatic throttling and manual un-throttling support

git-svn-id: https://svn.openpcd.org:2342/trunk@92 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
---
 openpcd/firmware/src/ssc.c | 12 +++++++++++-
 openpcd/firmware/src/ssc.h |  2 ++
 2 files changed, 13 insertions(+), 1 deletion(-)

(limited to 'openpcd')

diff --git a/openpcd/firmware/src/ssc.c b/openpcd/firmware/src/ssc.c
index 4c840b6..c9deb79 100644
--- a/openpcd/firmware/src/ssc.c
+++ b/openpcd/firmware/src/ssc.c
@@ -88,13 +88,23 @@ static void ssc_irq(void)
 			req_ctx_set_state(ssc_state.rx_ctx[0],
 					  RCTX_STATE_UDP_EP2_PENDING);
 		}
-		ssc_rx_refill();
+		if (ssc_rx_refill() == -1)
+			AT91F_AIC_DisableIt(ssc, AT91C_SSC_ENDRX |
+					    AT91C_SSC_TXBUFE |
+					    AT91C_SSC_OVRUN);
 	}
 
 	if (ssc_sr & AT91C_SSC_OVRUN)
 		DEBUGPCRF("Rx Overrun, shouldn't happen!");
 }
 
+
+void ssc_rx_unthrottle(void)
+{
+	AT91F_AIC_EnableIt(ssc, AT91C_SSC_ENDRX |
+			   AT91C_SSC_TXBUFE | AT91C_SSC_OVRUN);
+}
+
 void ssc_rx_start(void)
 {
 	DEBUGPCRF("starting SSC RX\n");	
diff --git a/openpcd/firmware/src/ssc.h b/openpcd/firmware/src/ssc.h
index 73450ab..710ee45 100644
--- a/openpcd/firmware/src/ssc.h
+++ b/openpcd/firmware/src/ssc.h
@@ -10,4 +10,6 @@ extern void ssc_rx_init(void);
 
 extern void ssc_fini(void);
 
+extern void ssc_rx_unthrottle(void);
+
 #endif
-- 
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