From nobody Mon Feb 9 08:29:37 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77284C7EE25 for ; Mon, 12 Jun 2023 08:12:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231301AbjFLIMB (ORCPT ); Mon, 12 Jun 2023 04:12:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48696 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229911AbjFLILo (ORCPT ); Mon, 12 Jun 2023 04:11:44 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 50E44B8 for ; Mon, 12 Jun 2023 01:11:17 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 26A4D2285C; Mon, 12 Jun 2023 08:11:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1686557467; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U7nIBVYrXmw9VtWIn1VS8RRci0PTHOpfvkr5XIEPKwQ=; b=Ju2u7fHwy+/0LLEPoTgo35449ag8naF5swqvaMkFWQdqf7n5BMBeaxeqNwg/OoGjaizqcs WhEPHq+jP02icdDFjl+wdyf4UePQXUT3x8pVrBbW8AvkNDx0MiUjn7fYVh63VIVn285OTx x/EIPPV6d+2NWTAzC3YPrEizjg04p8c= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1686557467; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U7nIBVYrXmw9VtWIn1VS8RRci0PTHOpfvkr5XIEPKwQ=; b=jnCp3iTP9WO8mM0CqVP+ad8idfMLMO2FFnp1cA4wjTZRdR3h9ZqFHpdRydpAklYCQpUyKH rsTjHvgUNbHPxKCg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 04D10138EC; Mon, 12 Jun 2023 08:11:07 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id KAMvABvThmSLcAAAMHmgww (envelope-from ); Mon, 12 Jun 2023 08:11:07 +0000 From: Takashi Iwai To: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 08/10] ALSA: seq: ump: Notify UMP protocol change to sequencer Date: Mon, 12 Jun 2023 10:10:52 +0200 Message-Id: <20230612081054.17200-9-tiwai@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230612081054.17200-1-tiwai@suse.de> References: <20230612081054.17200-1-tiwai@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" UMP v1.1 supports the protocol switch via a UMP Stream message. When it's received, we need to take care of the midi_version field in the corresponding sequencer client, too. This patch introduces a new ops to notify the protocol change to snd_seq_ump_ops for handling it. Signed-off-by: Takashi Iwai --- include/sound/ump.h | 1 + sound/core/seq/seq_ump_client.c | 10 ++++++++++ sound/core/ump.c | 13 +++++++++++++ 3 files changed, 24 insertions(+) diff --git a/include/sound/ump.h b/include/sound/ump.h index 0e9c048346fa..68478e7be3b4 100644 --- a/include/sound/ump.h +++ b/include/sound/ump.h @@ -72,6 +72,7 @@ struct snd_seq_ump_ops { const u32 *data, int words); int (*notify_fb_change)(struct snd_ump_endpoint *ump, struct snd_ump_block *fb); + int (*switch_protocol)(struct snd_ump_endpoint *ump); }; =20 struct snd_ump_block { diff --git a/sound/core/seq/seq_ump_client.c b/sound/core/seq/seq_ump_clien= t.c index 901a670dcb36..fe21c801af74 100644 --- a/sound/core/seq/seq_ump_client.c +++ b/sound/core/seq/seq_ump_client.c @@ -439,9 +439,19 @@ static int seq_ump_notify_fb_change(struct snd_ump_end= point *ump, return 0; } =20 +/* UMP protocol change notification; just update the midi_version field */ +static int seq_ump_switch_protocol(struct snd_ump_endpoint *ump) +{ + if (!ump->seq_client) + return -ENODEV; + setup_client_midi_version(ump->seq_client); + return 0; +} + static const struct snd_seq_ump_ops seq_ump_ops =3D { .input_receive =3D seq_ump_input_receive, .notify_fb_change =3D seq_ump_notify_fb_change, + .switch_protocol =3D seq_ump_switch_protocol, }; =20 /* create a sequencer client and ports for the given UMP endpoint */ diff --git a/sound/core/ump.c b/sound/core/ump.c index c0cda12bce10..f364bb290d3a 100644 --- a/sound/core/ump.c +++ b/sound/core/ump.c @@ -657,14 +657,27 @@ static int ump_handle_product_id_msg(struct snd_ump_e= ndpoint *ump, buf->raw, 2); } =20 +/* notify the protocol change to sequencer */ +static void seq_notify_protocol(struct snd_ump_endpoint *ump) +{ +#if IS_ENABLED(CONFIG_SND_SEQUENCER) + if (ump->seq_ops && ump->seq_ops->switch_protocol) + ump->seq_ops->switch_protocol(ump); +#endif /* CONFIG_SND_SEQUENCER */ +} + /* handle EP stream config message; update the UMP protocol */ static int ump_handle_stream_cfg_msg(struct snd_ump_endpoint *ump, const union snd_ump_stream_msg *buf) { + unsigned int old_protocol =3D ump->info.protocol; + ump->info.protocol =3D (buf->stream_cfg.protocol << 8) | buf->stream_cfg.jrts; ump_dbg(ump, "Current protocol =3D %x (caps =3D %x)\n", ump->info.protocol, ump->info.protocol_caps); + if (ump->parsed && ump->info.protocol !=3D old_protocol) + seq_notify_protocol(ump); return 1; /* finished */ } =20 --=20 2.35.3