From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 88A84145B2C; Thu, 11 Apr 2024 10:10:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712830225; cv=none; b=A4oakbtz2iOQUOZv5u6ItWfUWSXmkgp4+zgyNpf7cr9ZWzDeK7XXvJKFaSWvs/gICQTD388BQ3N3a4g7Zc3QzBw4O9/QObwzE8yge29ab12/Et6fa0CmygaLaFlfpj83+R8oDp6HQEqNjFGz0nK4nlCHQX5nKEvU2uGgEuDznXM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712830225; c=relaxed/simple; bh=klxNM6uofrwW5s41f1MuqmItfePNQRQcjQx9gU5vmgo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IJl396+iew2Mw8j0r5rtXbnLj0HdRHUm7sdrU08G9D1vvS/5W8+Iduqa5M7SOK5tVAzIPGizjJMSdRlQy5Cy9HYKRotJqQXiKrBbZxmM59HGvvyunZbdSZVyW0SXSn6fc6Ui1ihRcRI2NehXPQEIkKngavwhUvjRxBSQW5yKJDI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OPi5PSyv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="OPi5PSyv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12B70C433C7; Thu, 11 Apr 2024 10:10:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712830225; bh=klxNM6uofrwW5s41f1MuqmItfePNQRQcjQx9gU5vmgo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OPi5PSyvLQAfSZ3hNLasV2zU/HTz/tSj9y3KJWMOK9tK7c+Ejl5b8NvdPWT8p1V6T yserA9055JpDLZp0l8GZ0YqJCjCq1mjbkJfaLd71beDv3v2POt/wb3LvARzZ/Xx/kW 5IMVV267d9cvIPf7WljJ6nhQy2O9T4HzJflGKAXk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Takashi Sakamoto , Takashi Iwai , Sasha Levin Subject: [PATCH 6.8 077/143] ALSA: firewire-lib: handle quirk to calculate payload quadlets as data block counter Date: Thu, 11 Apr 2024 11:55:45 +0200 Message-ID: <20240411095423.231942162@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240411095420.903937140@linuxfoundation.org> References: <20240411095420.903937140@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Sakamoto [ Upstream commit 4a486439d2ca85752c46711f373b6ddc107bb35d ] Miglia Harmony Audio (OXFW970) has a quirk to put the number of accumulated quadlets in CIP payload into the dbc field of CIP header. This commit handles the quirk in the packet processing layer. Signed-off-by: Takashi Sakamoto Link: https://lore.kernel.org/r/20240218074128.95210-4-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/firewire/amdtp-stream.c | 12 ++++++++---- sound/firewire/amdtp-stream.h | 4 ++++ 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 7be17bca257f0..c9f153f85ae6b 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -773,10 +773,14 @@ static int check_cip_header(struct amdtp_stream *s, const __be32 *buf, } else { unsigned int dbc_interval; - if (*data_blocks > 0 && s->ctx_data.tx.dbc_interval > 0) - dbc_interval = s->ctx_data.tx.dbc_interval; - else - dbc_interval = *data_blocks; + if (!(s->flags & CIP_DBC_IS_PAYLOAD_QUADLETS)) { + if (*data_blocks > 0 && s->ctx_data.tx.dbc_interval > 0) + dbc_interval = s->ctx_data.tx.dbc_interval; + else + dbc_interval = *data_blocks; + } else { + dbc_interval = payload_length / sizeof(__be32); + } lost = dbc != ((*data_block_counter + dbc_interval) & 0xff); } diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h index b7ff44751ab93..a1ed2e80f91a7 100644 --- a/sound/firewire/amdtp-stream.h +++ b/sound/firewire/amdtp-stream.h @@ -37,6 +37,9 @@ * the value of current SYT_INTERVAL; e.g. initial value is not zero. * @CIP_UNAWARE_SYT: For outgoing packet, the value in SYT field of CIP is 0xffff. * For incoming packet, the value in SYT field of CIP is not handled. + * @CIP_DBC_IS_PAYLOAD_QUADLETS: Available for incoming packet, and only effective with + * CIP_DBC_IS_END_EVENT flag. The value of dbc field is the number of accumulated quadlets + * in CIP payload, instead of the number of accumulated data blocks. */ enum cip_flags { CIP_NONBLOCKING = 0x00, @@ -51,6 +54,7 @@ enum cip_flags { CIP_NO_HEADER = 0x100, CIP_UNALIGHED_DBC = 0x200, CIP_UNAWARE_SYT = 0x400, + CIP_DBC_IS_PAYLOAD_QUADLETS = 0x800, }; /** -- 2.43.0