From patchwork Thu May 18 14:03:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oswald Buddenhagen X-Patchwork-Id: 683402 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 2B45CC7EE24 for ; Thu, 18 May 2023 14:05:33 +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 0D8726C1; Thu, 18 May 2023 16:04:41 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 0D8726C1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1684418731; bh=UY98RjFlCllpkG2pYiXNAgwJdrssYFE0NR8YzpaZb/0=; h=From:To:Cc:Subject:Date:List-Id:List-Archive:List-Help:List-Owner: List-Post:List-Subscribe:List-Unsubscribe:From; b=rlnX+yc2+7sazBf/vzqG85bLnwaTmnTQ3kv8/GXjqdgqtQ0j2eloifpSeEiAHOgsc wbXQLUOR+exWujaZnJ04CpAHWqDeMD31G2XMH5vxBpWSTTnNlFDRF2eDJik3W3H14J R5TXji4a3XNc4eAnts4u10RWWA/cdsfXgThWSXZk= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9D818F80564; Thu, 18 May 2023 16:03:54 +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 0F48DF80431; Thu, 18 May 2023 16:03:54 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 027F2F80552; Thu, 18 May 2023 16:03:49 +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 4BC10F80272 for ; Thu, 18 May 2023 16:03:41 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 4BC10F80272 Received: from ugly.fritz.box (localhost [127.0.0.1]) by bluemchen.kde.org (Postfix) with ESMTP id A6B34240DB; Thu, 18 May 2023 10:03:39 -0400 (EDT) Received: by ugly.fritz.box (masqmail 0.3.4, from userid 1000) id 1pzeEF-cLO-00; Thu, 18 May 2023 16:03:39 +0200 From: Oswald Buddenhagen To: alsa-devel@alsa-project.org Cc: Takashi Iwai , Jaroslav Kysela Subject: [PATCH 1/2] ALSA: emu10k1: fix synthesizer sample playback position and caching Date: Thu, 18 May 2023 16:03:38 +0200 Message-Id: <20230518140339.3722308-1-oswald.buddenhagen@gmx.de> X-Mailer: git-send-email 2.40.0.152.g15d061e6df MIME-Version: 1.0 Message-ID-Hash: IBN62KQLY72NH3FZ4NBPFMFQ6KHJEULX X-Message-ID-Hash: IBN62KQLY72NH3FZ4NBPFMFQ6KHJEULX 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: Compensate for the cache delay, and actually populate the cache. Without these, the playback would start with garbage (which would be (mostly?) masqueraded by the attack phase). Unlike for the PCM voices, this doesn't try to compensate for the interpolator read-ahead, because it's pointless to be super-exact here. Note that this code is probably still broken for particularly short samples, because we ignore the loop-related parts of CCR. But I'm not going to reverse-engineer that now ... Signed-off-by: Oswald Buddenhagen --- sound/pci/emu10k1/emu10k1_callback.c | 36 ++++------------------------ 1 file changed, 5 insertions(+), 31 deletions(-) diff --git a/sound/pci/emu10k1/emu10k1_callback.c b/sound/pci/emu10k1/emu10k1_callback.c index 06440b97b5d7..aab8d64fd708 100644 --- a/sound/pci/emu10k1/emu10k1_callback.c +++ b/sound/pci/emu10k1/emu10k1_callback.c @@ -253,7 +253,7 @@ lookup_voices(struct snd_emux *emu, struct snd_emu10k1 *hw, /* check if sample is finished playing (non-looping only) */ if (bp != best + V_OFF && bp != best + V_FREE && (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_SINGLESHOT)) { - val = snd_emu10k1_ptr_read(hw, CCCA_CURRADDR, vp->ch); + val = snd_emu10k1_ptr_read(hw, CCCA_CURRADDR, vp->ch) - 64; if (val >= vp->reg.loopstart) bp = best + V_OFF; } @@ -360,7 +360,7 @@ start_voice(struct snd_emux_voice *vp) map = (hw->silent_page.addr << hw->address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); - addr = vp->reg.start; + addr = vp->reg.start + 64; temp = vp->reg.parm.filterQ; ccca = (temp << 28) | addr; if (vp->apitch < 0xe400) @@ -428,40 +428,14 @@ start_voice(struct snd_emux_voice *vp) /* Q & current address (Q 4bit value, MSB) */ CCCA, ccca, + /* cache */ + CCR, REG_VAL_PUT(CCR_CACHEINVALIDSIZE, 64), + /* reset volume */ VTFT, vtarget | vp->ftarget, CVCF, vtarget | CVCF_CURRENTFILTER_MASK, REGLIST_END); -#if 0 - /* cache */ - { - unsigned int val, sample; - val = 32; - if (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_8BITS) - sample = 0x80808080; - else { - sample = 0; - val *= 2; - } - - /* cache */ - snd_emu10k1_ptr_write(hw, CCR, ch, 0x1c << 16); - snd_emu10k1_ptr_write(hw, CDE, ch, sample); - snd_emu10k1_ptr_write(hw, CDF, ch, sample); - - /* invalidate maps */ - temp = ((unsigned int)hw->silent_page.addr << hw_address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); - snd_emu10k1_ptr_write(hw, MAPA, ch, temp); - snd_emu10k1_ptr_write(hw, MAPB, ch, temp); - - /* fill cache */ - val -= 4; - val <<= 25; - val |= 0x1c << 16; - snd_emu10k1_ptr_write(hw, CCR, ch, val); - } -#endif return 0; } From patchwork Thu May 18 14:03:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oswald Buddenhagen X-Patchwork-Id: 684505 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 30A58C7EE23 for ; Thu, 18 May 2023 14:05:35 +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 7C5BF825; Thu, 18 May 2023 16:04:42 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 7C5BF825 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1684418732; bh=Bg1DH9uB1KwTt4gjlS+xm2s+caVuhdtVLKFKGsdfmWQ=; 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=VQEAXityIRw0N6GvTsEivWjSEzKs2lLCftH7TEnY1TZ0S3HzifGiqx9PHmOHi0t97 J/Cip00ZcJT/RzhrR6leOf+tD4AWyjZRRHlwkx/GDkfRoF7m8HcPs3YEBWVdkZNmDQ mXTpt/gK/VxqlbcdGOkJ2A9waFU0QoXTBsRmN5KY= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 6A336F80578; Thu, 18 May 2023 16:03:57 +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 19A60F8057B; Thu, 18 May 2023 16:03:57 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5DFE5F8055C; Thu, 18 May 2023 16:03:53 +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 34652F8025A for ; Thu, 18 May 2023 16:03:41 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 34652F8025A Received: from ugly.fritz.box (localhost [127.0.0.1]) by bluemchen.kde.org (Postfix) with ESMTP id 85C5D24051; Thu, 18 May 2023 10:03:39 -0400 (EDT) Received: by ugly.fritz.box (masqmail 0.3.4, from userid 1000) id 1pzeEF-cL8-00; Thu, 18 May 2023 16:03:39 +0200 From: Oswald Buddenhagen To: alsa-devel@alsa-project.org Cc: Takashi Iwai , Jaroslav Kysela Subject: [PATCH 2/2] ALSA: emu10k1: enable bit-exact playback, part 4: send amounts Date: Thu, 18 May 2023 16:03:39 +0200 Message-Id: <20230518140339.3722279-3-oswald.buddenhagen@gmx.de> X-Mailer: git-send-email 2.40.0.152.g15d061e6df In-Reply-To: <20230518140339.3722279-1-oswald.buddenhagen@gmx.de> References: <20230518140339.3722279-1-oswald.buddenhagen@gmx.de> MIME-Version: 1.0 Message-ID-Hash: EZTCMO5YWG2BNKMPA2NL3AX4TXACGYU2 X-Message-ID-Hash: EZTCMO5YWG2BNKMPA2NL3AX4TXACGYU2 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: On Audigy, the send amounts are merely targets, presumably to avoid sound distortion due to sudden changes, which the EMU8K docu explicitly warns about. However, that "soft-start" would prevent bit-for-bit reproduction, so we now force the current send amounts to their final values at PCM playback init. One might want to do that for the MIDI synthesizer as well, though it seems mostly pointless due to the attack phase each note has anyway. Signed-off-by: Oswald Buddenhagen --- include/sound/emu10k1.h | 2 ++ sound/pci/emu10k1/emupcm.c | 17 +++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h index 9c5de1f45566..583fabef0b99 100644 --- a/include/sound/emu10k1.h +++ b/include/sound/emu10k1.h @@ -709,6 +709,8 @@ SUB_REG(PEFE, FILTERAMOUNT, 0x000000ff) /* Filter envlope amount */ #define ADCBS_BUFSIZE_57344 0x0000001e #define ADCBS_BUFSIZE_65536 0x0000001f +// On Audigy, the FX send amounts are not applied instantly, but determine +// targets towards which the following registers swerve gradually. #define A_CSBA 0x4c /* FX send B & A current amounts */ #define A_CSDC 0x4d /* FX send D & C current amounts */ #define A_CSFE 0x4e /* FX send F & E current amounts */ diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index 0b23ff8d9c3b..903a68a4d396 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -236,6 +236,18 @@ static unsigned int emu10k1_select_interprom(unsigned int pitch_target) return CCCA_INTERPROM_2; } +static u16 emu10k1_send_target_from_amount(u8 amount) +{ + static const u8 shifts[8] = { 4, 4, 5, 6, 7, 8, 9, 10 }; + static const u16 offsets[8] = { 0, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000 }; + u8 exp; + + if (amount == 0xff) + return 0xffff; + exp = amount >> 5; + return ((amount & 0x1f) << shifts[exp]) + offsets[exp]; +} + static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, int master, int extra, struct snd_emu10k1_voice *evoice, @@ -301,6 +313,11 @@ static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, A_FXRT2, snd_emu10k1_compose_audigy_fxrt2(send_routing), A_SENDAMOUNTS, snd_emu10k1_compose_audigy_sendamounts(send_amount), REGLIST_END); + for (int i = 0; i < 4; i++) { + u32 aml = emu10k1_send_target_from_amount(send_amount[2 * i]); + u32 amh = emu10k1_send_target_from_amount(send_amount[2 * i + 1]); + snd_emu10k1_ptr_write(emu, A_CSBA + i, voice, (amh << 16) | aml); + } } else { snd_emu10k1_ptr_write(emu, FXRT, voice, snd_emu10k1_compose_send_routing(send_routing));