From patchwork Tue Aug 7 02:46:51 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Devin Heitmueller X-Patchwork-Id: 13634 Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1SyZpp-00071E-7E for patchwork@linuxtv.org; Tue, 07 Aug 2012 04:47:53 +0200 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.75/mailfrontend-3) with esmtp for id 1SyZpo-0000ST-Dg; Tue, 07 Aug 2012 04:47:53 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932484Ab2HGCrs (ORCPT ); Mon, 6 Aug 2012 22:47:48 -0400 Received: from mail-vc0-f174.google.com ([209.85.220.174]:32810 "EHLO mail-vc0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932471Ab2HGCrq (ORCPT ); Mon, 6 Aug 2012 22:47:46 -0400 Received: by mail-vc0-f174.google.com with SMTP id fk26so3432645vcb.19 for ; Mon, 06 Aug 2012 19:47:46 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=uepe8GUjbcSBDwUKBv9OO2CKtbkyO1IEbuP0BCDK9b0=; b=ebgP06KnAq11HGH++lBVkcRPG8gG14Cx6MwVBI+f5aIzeNmV3K9qG6ruFLaW/LkQSU nHNqRt2ulV3jgofXyrqKvfhPNppOVF/4u40MWPedIV99w6zVZvzsgxkSWYMtk3UBmn9V DVpnQ1iCTrjmyPwV7Z6YSRkfuvljyv23GNqOzZQINl5yr003B08SErBbc+4m3/dFcIKk 7AA8wNM7/ko1+yQPYyRXTvTKlaL9WZtCSH8wlPpap92UK7++2o+MkAchqO8DimfRlSGP tsMyIDAxy21Zgn0enTc64yutJoEEVSo1p50FN1tHLgGKfQxw/cvCvQ/YPiY1HgtpYVxS CvXg== Received: by 10.52.93.170 with SMTP id cv10mr6450710vdb.78.1344307665877; Mon, 06 Aug 2012 19:47:45 -0700 (PDT) Received: from localhost.localdomain (pool-108-54-72-165.nycmny.fios.verizon.net. [108.54.72.165]) by mx.google.com with ESMTPS id e9sm17555638vdf.21.2012.08.06.19.47.44 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 06 Aug 2012 19:47:45 -0700 (PDT) From: Devin Heitmueller To: linux-media@vger.kernel.org Cc: Devin Heitmueller Subject: [PATCH 01/24] au8522: fix intermittent lockup of analog video decoder Date: Mon, 6 Aug 2012 22:46:51 -0400 Message-Id: <1344307634-11673-2-git-send-email-dheitmueller@kernellabs.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1344307634-11673-1-git-send-email-dheitmueller@kernellabs.com> References: <1344307634-11673-1-git-send-email-dheitmueller@kernellabs.com> X-Gm-Message-State: ALoCoQnRTlPUm4UoRrdCgqfvfj1pHcUzuw83fho4+MA0ScJRHs6xbUz8/ttWw8kha2Q3C/4YUdXD Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 5.6.1.2065439, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2012.8.7.23319 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' HTML_00_01 0.05, HTML_00_10 0.05, BODY_SIZE_4000_4999 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, DATE_TZ_NA 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_MEDIA_BODY 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __MIME_TEXT_ONLY 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_NO_WWW 0, __URI_NS ' It turns up the autodetection for the video standard in the au8522 is prone to hanging the chip until a reset is performed. This condition is trivial to reproduce simply by tuning to a station and then rapidly unplugging/ replugging the coax feed. Because we've never claimed to support anything other than NTSC-M, just disable the video-standard autodetection logic and force it to always be NTSC-M. Signed-off-by: Devin Heitmueller --- drivers/media/dvb/frontends/au8522_decoder.c | 6 +++- drivers/media/dvb/frontends/au8522_priv.h | 28 +++++++++++++++++++++++-- 2 files changed, 29 insertions(+), 5 deletions(-) diff --git a/drivers/media/dvb/frontends/au8522_decoder.c b/drivers/media/dvb/frontends/au8522_decoder.c index 55b6390..f2e786b 100644 --- a/drivers/media/dvb/frontends/au8522_decoder.c +++ b/drivers/media/dvb/frontends/au8522_decoder.c @@ -257,9 +257,11 @@ static void setup_decoder_defaults(struct au8522_state *state, u8 input_mode) au8522_writereg(state, AU8522_TVDED_DBG_MODE_REG060H, AU8522_TVDED_DBG_MODE_REG060H_CVBS); au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H, - AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS13); + AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_MN); au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H, - AU8522_TVDEC_FORMAT_CTRL2_REG062H_CVBS13); + AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_NTSC); au8522_writereg(state, AU8522_TVDEC_VCR_DET_LLIM_REG063H, AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS); au8522_writereg(state, AU8522_TVDEC_VCR_DET_HLIM_REG064H, diff --git a/drivers/media/dvb/frontends/au8522_priv.h b/drivers/media/dvb/frontends/au8522_priv.h index 6e4a438..9f44a7b 100644 --- a/drivers/media/dvb/frontends/au8522_priv.h +++ b/drivers/media/dvb/frontends/au8522_priv.h @@ -325,6 +325,31 @@ int au8522_led_ctrl(struct au8522_state *state, int led); /**************************************************************/ +/* Format control 1 */ + +/* VCR Mode 7-6 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_VCR_MODE_YES 0x80 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_VCR_MODE_NO 0x40 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_VCR_MODE_AUTO 0x00 +/* Field len 5-4 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_625 0x20 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 0x10 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_AUTO 0x00 +/* Line len (us) 3-2 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_64_000 0x0b +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 0x08 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_556 0x04 +/* Subcarrier freq 1-0 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_AUTO 0x03 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_443 0x02 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_MN 0x01 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_50 0x00 + +/* Format control 2 */ +#define AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_AUTODETECT 0x00 +#define AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_NTSC 0x01 + + #define AU8522_INPUT_CONTROL_REG081H_ATSC 0xC4 #define AU8522_INPUT_CONTROL_REG081H_ATVRF 0xC4 #define AU8522_INPUT_CONTROL_REG081H_ATVRF13 0xC4 @@ -385,9 +410,6 @@ int au8522_led_ctrl(struct au8522_state *state, int led); #define AU8522_TVDEC_COMB_MODE_REG015H_CVBS 0x00 #define AU8522_REG016H_CVBS 0x00 #define AU8522_TVDED_DBG_MODE_REG060H_CVBS 0x00 -#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS 0x0B -#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS13 0x03 -#define AU8522_TVDEC_FORMAT_CTRL2_REG062H_CVBS13 0x00 #define AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS 0x19 #define AU8522_REG0F9H_AUDIO 0x20 #define AU8522_TVDEC_VCR_DET_HLIM_REG064H_CVBS 0xA7