From patchwork Tue May 16 09:36:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oswald Buddenhagen X-Patchwork-Id: 682453 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 F0536C77B7A for ; Tue, 16 May 2023 09:38:36 +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 DF8D3207; Tue, 16 May 2023 11:37:44 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz DF8D3207 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1684229915; bh=2jmqXbxvcnNxUfQtXoZD9KLQ6O+GdxAkKC5UAdgs79k=; 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=XDWWEkqtU35lnbx4Z6fDe3vJU67O/6Z5dedLKaetqUIOZNkdX/MxkTbNi0DFKqoAx 8lMfuHWJgxGTNWwRT4llCCN+ZFkHJtTL4VaDWedUQxrlU9NOI06p61buxsW2UW0n5S Zb5kEds96mHf8RX9Xak15nacFeUw2tdK5I2y8fKE= Received: by alsa1.perex.cz (Postfix, from userid 50401) id A9838F805AE; Tue, 16 May 2023 11:36:38 +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 0EA38F805A8; Tue, 16 May 2023 11:36:38 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 26D82F80579; Tue, 16 May 2023 11:36:30 +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 3651FF802E8 for ; Tue, 16 May 2023 11:36:14 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 3651FF802E8 Received: from ugly.fritz.box (localhost [127.0.0.1]) by bluemchen.kde.org (Postfix) with ESMTP id DA9BF2428D; Tue, 16 May 2023 05:36:12 -0400 (EDT) Received: by ugly.fritz.box (masqmail 0.3.4, from userid 1000) id 1pyr6K-q0A-00; Tue, 16 May 2023 11:36:12 +0200 From: Oswald Buddenhagen To: alsa-devel@alsa-project.org Cc: Takashi Iwai , Jaroslav Kysela Subject: [PATCH 4/6] ALSA: emu10k1: rewire {en,dis}abling interrupts for PCM playback Date: Tue, 16 May 2023 11:36:10 +0200 Message-Id: <20230516093612.3536451-5-oswald.buddenhagen@gmx.de> X-Mailer: git-send-email 2.40.0.152.g15d061e6df In-Reply-To: <20230516093612.3536451-1-oswald.buddenhagen@gmx.de> References: <20230516093612.3536451-1-oswald.buddenhagen@gmx.de> MIME-Version: 1.0 Message-ID-Hash: IA64CMM3WHNY3PXNB6XVUMGAVXOC3MX4 X-Message-ID-Hash: IA64CMM3WHNY3PXNB6XVUMGAVXOC3MX4 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: We now enable ints even before triggering, and disable them only after stopping - otherwise there is a race condition we may plausibly run into when we pause/resume near the end of the buffer. Updating the epcm->running flag is moved the same way, as it affects the *_pointer() functions, which are called by the interrupt handler. Also, factor these out to own functions, for clarity. For multi-channel, the extra voice is now triggered after all regular voices - we wouldn't want to receive an int before all channels have passed the period boundary. Signed-off-by: Oswald Buddenhagen --- sound/pci/emu10k1/emupcm.c | 45 ++++++++++++++++++++++++-------------- 1 file changed, 29 insertions(+), 16 deletions(-) diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index 2b6f5d2bbb3e..7b0ab4e02cfd 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -605,7 +605,9 @@ static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct s snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | CVCF_CURRENTFILTER_MASK); } -static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra) +static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, + struct snd_emu10k1_voice *evoice, + int master) { struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; @@ -624,24 +626,36 @@ static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct s snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target); if (master || evoice->epcm->type == PLAYBACK_EFX) snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target); - if (extra) - snd_emu10k1_voice_intr_enable(emu, voice); } -static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice) +static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, + struct snd_emu10k1_voice *evoice) { unsigned int voice; if (evoice == NULL) return; voice = evoice->number; - snd_emu10k1_voice_intr_disable(emu, voice); snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0); snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0); snd_emu10k1_ptr_write(emu, VTFT, voice, VTFT_FILTERTARGET_MASK); snd_emu10k1_ptr_write(emu, CVCF, voice, CVCF_CURRENTFILTER_MASK); } +static void snd_emu10k1_playback_set_running(struct snd_emu10k1 *emu, + struct snd_emu10k1_pcm *epcm) +{ + epcm->running = 1; + snd_emu10k1_voice_intr_enable(emu, epcm->extra->number); +} + +static void snd_emu10k1_playback_set_stopped(struct snd_emu10k1 *emu, + struct snd_emu10k1_pcm *epcm) +{ + snd_emu10k1_voice_intr_disable(emu, epcm->extra->number); + epcm->running = 0; +} + static inline void snd_emu10k1_playback_mangle_extra(struct snd_emu10k1 *emu, struct snd_emu10k1_pcm *epcm, struct snd_pcm_substream *substream, @@ -687,18 +701,18 @@ static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream, snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, mix); snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, mix); snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, NULL); - snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0); - snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0); - snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1); - epcm->running = 1; + snd_emu10k1_playback_set_running(emu, epcm); + snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1); + snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0); + snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_SUSPEND: - epcm->running = 0; snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]); snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]); snd_emu10k1_playback_stop_voice(emu, epcm->extra); + snd_emu10k1_playback_set_stopped(emu, epcm); break; default: result = -EINVAL; @@ -836,20 +850,19 @@ static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream, for (i = 1; i < NUM_EFX_PLAYBACK; i++) snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, &emu->efx_pcm_mixer[i]); - snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0); - snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1); - for (i = 1; i < NUM_EFX_PLAYBACK; i++) - snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0); - epcm->running = 1; + snd_emu10k1_playback_set_running(emu, epcm); + for (i = 0; i < NUM_EFX_PLAYBACK; i++) + snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0); + snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1); break; case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - epcm->running = 0; for (i = 0; i < NUM_EFX_PLAYBACK; i++) { snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]); } snd_emu10k1_playback_stop_voice(emu, epcm->extra); + snd_emu10k1_playback_set_stopped(emu, epcm); break; default: result = -EINVAL;