From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758652Ab3LFOME (ORCPT ); Fri, 6 Dec 2013 09:12:04 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:43752 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161281Ab3LFNAg (ORCPT ); Fri, 6 Dec 2013 08:00:36 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Malcolm Priestley , Greg Kroah-Hartman , Luis Henriques Subject: [PATCH 3.11 050/272] staging: vt6656: [BUG] Fix for TX USB resets from vendors driver. Date: Fri, 6 Dec 2013 12:55:39 +0000 Message-Id: <1386334761-25517-51-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1386334761-25517-1-git-send-email-luis.henriques@canonical.com> References: <1386334761-25517-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.11 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.11.10.1 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Malcolm Priestley commit 9df682927c2e3a92f43803d6b52095992e3b2ab8 upstream. This fixes resets on heavy TX data traffic. Vendor driver VT6656_Linux_src_v1.21.03_x86_11.04.zip http://www.viaembedded.com/servlet/downloadSvl?id=1890&download_file_id=14704 This is GPL-licensed code. original code BBbVT3184Init ... //2007-0725, RobertChang add, Enable Squelch detect reset option(SQ_RST_Opt), USB (register4, bit1) CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, (WORD)0x600+4, // USB's Reg4's bit1 MESSAGE_REQUEST_MEM, 1, (PBYTE) &byData); byData = byData|2 ; CONTROLnsRequestOut(pDevice, MESSAGE_TYPE_WRITE, (WORD)0x600+4, // USB's Reg4's bit1 MESSAGE_REQUEST_MEM, 1, (PBYTE) &byData); return TRUE;//ntStatus; .... A back port patch is needed for kernels less than 3.10. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman Signed-off-by: Luis Henriques --- drivers/staging/vt6656/baseband.c | 11 +++++++++++ drivers/staging/vt6656/rndis.h | 2 ++ 2 files changed, 13 insertions(+) diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c index 33fa767..3ff1126 100644 --- a/drivers/staging/vt6656/baseband.c +++ b/drivers/staging/vt6656/baseband.c @@ -941,6 +941,7 @@ int BBbVT3184Init(struct vnt_private *pDevice) u8 * pbyAgc; u16 wLengthAgc; u8 abyArray[256]; + u8 data; ntStatus = CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, @@ -1106,6 +1107,16 @@ else { ControlvWriteByte(pDevice,MESSAGE_REQUEST_BBREG,0x0D,0x01); RFbRFTableDownload(pDevice); + + /* Fix for TX USB resets from vendors driver */ + CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, USB_REG4, + MESSAGE_REQUEST_MEM, sizeof(data), &data); + + data |= 0x2; + + CONTROLnsRequestOut(pDevice, MESSAGE_TYPE_WRITE, USB_REG4, + MESSAGE_REQUEST_MEM, sizeof(data), &data); + return true;//ntStatus; } diff --git a/drivers/staging/vt6656/rndis.h b/drivers/staging/vt6656/rndis.h index 5e07306..5cf5e73 100644 --- a/drivers/staging/vt6656/rndis.h +++ b/drivers/staging/vt6656/rndis.h @@ -66,6 +66,8 @@ #define VIAUSB20_PACKET_HEADER 0x04 +#define USB_REG4 0x604 + typedef struct _CMD_MESSAGE { u8 byData[256]; -- 1.8.3.2