From c319d646a7961442b94ee798d5a3b3bf62d8a720 Mon Sep 17 00:00:00 2001
From: henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>
Date: Wed, 12 Mar 2008 17:32:45 +0000
Subject: Remove SSC DMA Rx buffers that are not going to be used for now and
 take up precious RAM

git-svn-id: https://svn.openpcd.org:2342/trunk@450 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
---
 openpicc/application/ssc.c        | 7 +++++++
 openpicc/application/ssc_buffer.h | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

(limited to 'openpicc')

diff --git a/openpicc/application/ssc.c b/openpicc/application/ssc.c
index d1d4e48..6c53ebd 100644
--- a/openpicc/application/ssc.c
+++ b/openpicc/application/ssc.c
@@ -478,6 +478,7 @@ out:
 	taskEXIT_CRITICAL();
 }
 
+#if SSC_DMA_BUFFER_COUNT > 0
 static inline int _init_ssc_rx(ssc_handle_t *sh)
 {
 	tc_cdiv_sync_init();
@@ -524,6 +525,7 @@ static inline int _init_ssc_rx(ssc_handle_t *sh)
 out_fail_queue:
 	return 0;
 }
+#endif
 
 static inline int _init_ssc_tx(ssc_handle_t *sh)
 {
@@ -602,11 +604,16 @@ ssc_handle_t* ssc_open(u_int8_t init_rx, u_int8_t init_tx, enum ssc_mode mode, s
 	}
 	
 	if(init_rx) {
+#if SSC_DMA_BUFFER_COUNT > 0
 		sh->rx_enabled = _init_ssc_rx(sh);
 		if(!sh->rx_enabled) {
 			ssc_close(sh);
 			return NULL;
 		}
+#else
+		ssc_close(sh);
+		return NULL;
+#endif
 	}
 	
 	if(sh->rx_enabled || sh->tx_enabled) {
diff --git a/openpicc/application/ssc_buffer.h b/openpicc/application/ssc_buffer.h
index 7c79013..5365851 100644
--- a/openpicc/application/ssc_buffer.h
+++ b/openpicc/application/ssc_buffer.h
@@ -4,7 +4,7 @@
 #include "iso14443.h"
 
 #define SSC_RX_BUFFER_SIZE_AS_UINT8 2048
-#define SSC_DMA_BUFFER_COUNT 4
+#define SSC_DMA_BUFFER_COUNT 0
 
 /* in bytes, used for the sample buffer that holds the subcarrier modulation data at fc/8 = 1695 MHz */
 #define SSC_TX_BUFFER_SIZE_AS_UINT8 ((MAXIMUM_FRAME_SIZE*( (8+1)*2 ) ) + 2 + 2)
-- 
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