From patchwork Mon Jun 12 19:13:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oswald Buddenhagen X-Patchwork-Id: 692004 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EDCAEC7EE2E for ; Mon, 12 Jun 2023 19:17:30 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C4C03A4D; Mon, 12 Jun 2023 21:16:38 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C4C03A4D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1686597448; bh=6ROM/0SV7r/vj00YR7rcPh+62aZFz/VdARGvk/Y/Jd0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=Yh0b+aw5x2aakyw3njUuFh/LGV8piLCLaKn8PYWvMz2IPCDw8Pay+ElLoyvuOjWWH R4TcR9lV9y/FafTlL2H7HbJy4pLArrdriINHZw/N5I8a5cWkm7//eZzXVeK2ECusfx sJOm3XeEVWoiouW7moONxhbQZC/d7Fk2rrFkdulk= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 21B7FF805D7; Mon, 12 Jun 2023 21:14:52 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 4D935F805D3; Mon, 12 Jun 2023 21:14:52 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5DF0AF80132; Mon, 12 Jun 2023 21:14:47 +0200 (CEST) Received: from bluemchen.kde.org (bluemchen.kde.org [IPv6:2001:470:142:8::100]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id CF211F80155 for ; Mon, 12 Jun 2023 21:13:35 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz CF211F80155 Received: from ugly.fritz.box (localhost [127.0.0.1]) by bluemchen.kde.org (Postfix) with ESMTP id E728724260; Mon, 12 Jun 2023 15:13:25 -0400 (EDT) Received: by ugly.fritz.box (masqmail 0.3.4, from userid 1000) id 1q8myj-WKR-00; Mon, 12 Jun 2023 21:13:25 +0200 From: Oswald Buddenhagen To: alsa-devel@alsa-project.org Cc: Takashi Iwai , Jaroslav Kysela Subject: [PATCH 7/9] ALSA: emu10k1: fix timer for E-MU cards at 44.1 kHz word clock Date: Mon, 12 Jun 2023 21:13:23 +0200 Message-Id: <20230612191325.1315854-8-oswald.buddenhagen@gmx.de> X-Mailer: git-send-email 2.40.0.152.g15d061e6df In-Reply-To: <20230612191325.1315854-1-oswald.buddenhagen@gmx.de> References: <20230612191325.1315854-1-oswald.buddenhagen@gmx.de> MIME-Version: 1.0 Message-ID-Hash: W5HQUUWP7ML3A7UA4C5ZWF6RQ3JCUVR2 X-Message-ID-Hash: W5HQUUWP7ML3A7UA4C5ZWF6RQ3JCUVR2 X-MailFrom: ossi@kde.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: The timer was presuming a fixed 48 kHz word clock, like the rest of the code. Signed-off-by: Oswald Buddenhagen --- sound/pci/emu10k1/timer.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/sound/pci/emu10k1/timer.c b/sound/pci/emu10k1/timer.c index 993663fef885..f3c78adf3248 100644 --- a/sound/pci/emu10k1/timer.c +++ b/sound/pci/emu10k1/timer.c @@ -38,20 +38,36 @@ static int snd_emu10k1_timer_stop(struct snd_timer *timer) return 0; } +static unsigned long snd_emu10k1_timer_c_resolution(struct snd_timer *timer) +{ + struct snd_emu10k1 *emu = snd_timer_chip(timer); + + if (emu->card_capabilities->emu_model && + emu->emu1010.word_clock == 44100) + return 22676; // 1 sample @ 44.1 kHz = 22.675736...us + else + return 20833; // 1 sample @ 48 kHz = 20.833...us +} + static int snd_emu10k1_timer_precise_resolution(struct snd_timer *timer, unsigned long *num, unsigned long *den) { + struct snd_emu10k1 *emu = snd_timer_chip(timer); + *num = 1; - *den = 48000; + if (emu->card_capabilities->emu_model) + *den = emu->emu1010.word_clock; + else + *den = 48000; return 0; } static const struct snd_timer_hardware snd_emu10k1_timer_hw = { .flags = SNDRV_TIMER_HW_AUTO, - .resolution = 20833, /* 1 sample @ 48KHZ = 20.833...us */ .ticks = 1024, .start = snd_emu10k1_timer_start, .stop = snd_emu10k1_timer_stop, + .c_resolution = snd_emu10k1_timer_c_resolution, .precise_resolution = snd_emu10k1_timer_precise_resolution, };