From bc4f1620779fb64fe5a9bedeefcd9513770473b7 Mon Sep 17 00:00:00 2001
From: Tomek CEDRO <cederom@tlen.pl>
Date: Wed, 2 Nov 2011 03:46:25 +0000
Subject: driver/ft2232: Added raw-wire level debug of data read/written by
 ft2232. This might help debug bugs in drivers ;-)

---
 src/jtag/drivers/ft2232.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/jtag/drivers/ft2232.c b/src/jtag/drivers/ft2232.c
index df5c5e35..4d417899 100644
--- a/src/jtag/drivers/ft2232.c
+++ b/src/jtag/drivers/ft2232.c
@@ -729,6 +729,9 @@ int ft2232_transfer(void *device, int bits, char *mosidata, char *misodata, int
 	int retval, bit, i;
 	uint32_t bytes_written, bytes_read;
 
+	LOG_DEBUG("ft2232_transfer(device=@%p, bits=%d, mosidata=@%p, misodata=@%p, nLSDfirst=%d) ",\
+		(void*)device, bits, (void*)mosidata, (void*)misodata, nLSBfirst);
+
 	//No optimization for now, simply send one bit from one char element.
 	for (bit=0;bit<bits;bit++){
 		buf[0]=(nLSBfirst)?0x33:0x3b;	// Clock Bits In and Out LSb or MSb first.
@@ -746,6 +749,8 @@ int ft2232_transfer(void *device, int bits, char *mosidata, char *misodata, int
 		}
 		// FTDI MPSSE returns shift register value, our bit is MSb 
 		misodata[bit]=(misodata[bit]&(nLSBfirst?0x01:0x80))?1:0;
+		//USE THIS FOR WIRE-LEVEL DEBUG
+		//LOG_DEBUG("read 0x%02X written 0x%02X", misodata[bit], mosidata[bit]);
 	}
 
 	/* Check if MPSSE ERROR occured and print info if so. */
-- 
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