From 174e64035c7266160c5662d906f135987fc70986 Mon Sep 17 00:00:00 2001
From: "(no author)" <(no author)@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>
Date: Fri, 11 Aug 2006 09:14:03 +0000
Subject: remove four bytes (2* u_int16_t) from every 'sctruct openpcd_hdr'

git-svn-id: https://svn.openpcd.org:2342/trunk@101 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
---
 openpcd/firmware/include/openpcd.h |  2 --
 openpcd/firmware/src/rc632.c       |  5 ++---
 openpcd/firmware/src/usb_handler.c | 42 +++++++++++++++++++++-----------------
 3 files changed, 25 insertions(+), 24 deletions(-)

diff --git a/openpcd/firmware/include/openpcd.h b/openpcd/firmware/include/openpcd.h
index 9af311e..a6831dd 100644
--- a/openpcd/firmware/include/openpcd.h
+++ b/openpcd/firmware/include/openpcd.h
@@ -10,8 +10,6 @@ struct openpcd_hdr {
 	u_int8_t flags;
 	u_int8_t reg;		/* register */
 	u_int8_t val;		/* value (in case of write *) */
-	u_int16_t len;
-	u_int16_t res;
 	u_int8_t data[0];
 } __attribute__ ((packed));
 
diff --git a/openpcd/firmware/src/rc632.c b/openpcd/firmware/src/rc632.c
index dea1470..d37a407 100644
--- a/openpcd/firmware/src/rc632.c
+++ b/openpcd/firmware/src/rc632.c
@@ -19,14 +19,14 @@
 #include "pcd_enumerate.h"
 #include "rc632.h"
 
-#define NOTHING {}
+#define NOTHING  do {} while(0)
 
 #if 0
 #define DEBUGPSPI DEBUGP
 #define DEBUGPSPIIRQ DEBUGP
 #else
 #define	DEBUGPSPI(x, args ...)  NOTHING
-#define DEBUGPSPIIRQ		NOTHING
+#define DEBUGPSPIIRQ(x, args...) NOTHING
 #endif
 
 #if 0
@@ -336,7 +336,6 @@ static void rc632_irq(void)
 	irq_opcdh->cmd = OPENPCD_CMD_IRQ;
 	irq_opcdh->flags = 0x00;
 	irq_opcdh->reg = 0x07;
-	irq_opcdh->len = 0x00;
 	irq_opcdh->val = cause;
 	
 	req_ctx_set_state(irq_rctx, RCTX_STATE_UDP_EP3_PENDING);
diff --git a/openpcd/firmware/src/usb_handler.c b/openpcd/firmware/src/usb_handler.c
index 4068486..bb5f5d4 100644
--- a/openpcd/firmware/src/usb_handler.c
+++ b/openpcd/firmware/src/usb_handler.c
@@ -26,6 +26,8 @@ static int usb_in(struct req_ctx *rctx)
 
 	if (len < sizeof(*poh))
 		return -EINVAL;
+	
+	len -= sizeof(*poh);
 
 	memcpy(pih, poh, sizeof(*poh));
 	rctx->tx.tot_len = sizeof(*poh);
@@ -38,14 +40,14 @@ static int usb_in(struct req_ctx *rctx)
 		break;
 	case OPENPCD_CMD_READ_FIFO:
 		{
-		u_int16_t tot_len = poh->val, remain_len;
-		if (tot_len > MAX_PAYLOAD_LEN) {
-			pih->len = MAX_PAYLOAD_LEN;
-			remain_len -= pih->len;
-			rc632_fifo_read(RAH, pih->len, pih->data);
-			rctx->tx.tot_len += pih->len;
-			DEBUGP("READ FIFO(len=%u)=%s ", pih->len,
-				hexdump(pih->data, poh->val));
+		u_int16_t req_len = poh->val, remain_len, pih_len;
+		if (req_len > MAX_PAYLOAD_LEN) {
+			pih_len = MAX_PAYLOAD_LEN;
+			remain_len -= pih_len;
+			rc632_fifo_read(RAH, pih_len, pih->data);
+			rctx->tx.tot_len += pih_len;
+			DEBUGP("READ FIFO(len=%u)=%s ", req_len,
+				hexdump(pih->data, pih_len));
 			req_ctx_set_state(rctx, RCTX_STATE_UDP_EP2_PENDING);
 			udp_refill_ep(2, rctx);
 
@@ -61,17 +63,17 @@ static int usb_in(struct req_ctx *rctx)
 			memcpy(pih, poh, sizeof(*poh));
 			rctx->tx.tot_len = sizeof(*poh);
 
-			pih->len = remain_len;
-			rc632_fifo_read(RAH, pih->len, pih->data);
-			rctx->tx.tot_len += pih->len;
-			DEBUGP("READ FIFO(len=%u)=%s ", pih->len,
-				hexdump(pih->data, poh->val));
+			pih_len = remain_len;
+			rc632_fifo_read(RAH, pih_len, pih->data);
+			rctx->tx.tot_len += pih_len;
+			DEBUGP("READ FIFO(len=%u)=%s ", pih_len,
+				hexdump(pih->data, pih_lenl));
 			/* don't set state of second rctx, main function
 			 * body will do this after switch statement */
 		} else {
-			pih->len = poh->val;
+			pih_len = poh->val;
 			rc632_fifo_read(RAH, poh->val, pih->data);
-			rctx->tx.tot_len += pih->len;
+			rctx->tx.tot_len += pih_len;
 			DEBUGP("READ FIFO(len=%u)=%s ", poh->val,
 				hexdump(pih->data, poh->val));
 		}
@@ -83,10 +85,10 @@ static int usb_in(struct req_ctx *rctx)
 		rc632_reg_write(RAH, poh->reg, poh->val);
 		break;
 	case OPENPCD_CMD_WRITE_FIFO:
-		DEBUGP("WRITE FIFO(len=%u) ", poh->len);
-		if (len - sizeof(*poh) < poh->len)
+		DEBUGP("WRITE FIFO(len=%d) ", len);
+		if (len <= 0)
 			return -EINVAL;
-		rc632_fifo_write(RAH, poh->len, poh->data, 0);
+		rc632_fifo_write(RAH, len, poh->data, 0);
 		break;
 	case OPENPCD_CMD_READ_VFIFO:
 		DEBUGP("READ VFIFO ");
@@ -94,7 +96,9 @@ static int usb_in(struct req_ctx *rctx)
 		goto respond;
 		break;
 	case OPENPCD_CMD_WRITE_VFIFO:
-		DEBUGP("WRITE VFIFO ");
+		DEBUGP("WRITE VFIFO(len=%d) ", len);
+		if (len <= 0)
+			return -EINVAL;
 		DEBUGP("NOT IMPLEMENTED YET ");
 		break;
 	case OPENPCD_CMD_REG_BITS_CLEAR:
-- 
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