From: Christian Lamparter <chunkeey@googlemail.com>
Date: Thu, 22 Jul 2010 23:51:35 +0000 (+0200)
Subject: carl9170 firmware: streamline dma_put hot-path
X-Git-Tag: 1.7.2~2
X-Git-Url: https://jxself.org/git/?p=carl9170fw.git;a=commitdiff_plain;h=fce55bd78997d0363c1029d90e62eb1de8a5ba6d

carl9170 firmware: streamline dma_put hot-path

This patch restores the original code-path in dma_put.
It no longer tries to correct the control flags for
all dma transfers.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
---

diff --git a/carlfw/src/dma.c b/carlfw/src/dma.c
index 2896032..dc4d278 100644
--- a/carlfw/src/dma.c
+++ b/carlfw/src/dma.c
@@ -212,9 +212,6 @@ void dma_put(struct dma_queue *q, struct dma_desc *desc)
 
 	tmpDesc = desc;
 
-	/* force correct CTRL_BITS */
-	tmpDesc->ctrl = 0;
-	tmpDesc->ctrl |= AR9170_CTRL_FS_BIT;
 	while (1) {
 		/* update totalLen */
 		tmpDesc->totalLen = desc->totalLen;
@@ -229,9 +226,7 @@ void dma_put(struct dma_queue *q, struct dma_desc *desc)
 			break;
 
 		tmpDesc = tmpDesc->nextAddr;
-		tmpDesc->ctrl = 0;
 	}
-	tmpDesc->ctrl |= AR9170_CTRL_LS_BIT;
 
 	/* 2. Next address of Last TD to be added = first TD */
 	desc->lastAddr->nextAddr = desc;
diff --git a/carlfw/usb/main.c b/carlfw/usb/main.c
index f32efc2..d07eb25 100644
--- a/carlfw/usb/main.c
+++ b/carlfw/usb/main.c
@@ -152,6 +152,7 @@ static void usb_status_in(void)
 		goto reclaim;
 	}
 
+	fw.usb.int_desc->ctrl = AR9170_CTRL_FS_BIT | AR9170_CTRL_LS_BIT;
 	fw.usb.int_desc->totalLen = tlen;
 	fw.usb.int_desc->dataSize = tlen;