From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gw.d.sender-sib.com (gw.d.sender-sib.com [77.32.148.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 365D1361974 for ; Thu, 20 Aug 2026 08:38:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=77.32.148.23 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787215082; cv=none; b=nh09ngEXbyKEU4tGLoluPrwfUW5qQlU9Z0SOIdTpxe3lcl15LnhVJM4UMtsgLjkr1SaMip+EByggAU1bkZvuDbTOYjtyZv4xJ8nEluXwn0+sJZ4luV6nXO5ykvPI91VVy5ASCQxUP0IU0z3OxpFY2V23sIM3LCdwS9o/1BUJTCI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787215082; c=relaxed/simple; bh=WkWCfdofhBa/xyWGidhvVSgREVFol2bfvzmw4/hCVKY=; h=Message-Id:Subject:From:To:Date:Cc:Mime-Version; b=c3RbeCxw0XLN282i194yY9NJbVGe+ceaH1AmAj5k79PzUX2BycQoIz/lldXEJnW5nuNDUq/9+Pxta3dxOayAG2A8tvSFHGbiWr9UoKCSu9Lqa5gbwDCSk9WDDBUPEMx1CGGulqeuTSQnOn8dyzhNMsiGw2Z3/uWPqYDJc45FPcs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=outlook.com.au; spf=pass smtp.mailfrom=gw.d.sender-sib.com; dkim=pass (1024-bit key) header.d=brevosend.com header.i=@brevosend.com header.b=ktOIy3PP; arc=none smtp.client-ip=77.32.148.23 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=outlook.com.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gw.d.sender-sib.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=brevosend.com header.i=@brevosend.com header.b="ktOIy3PP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brevosend.com; q=dns/txt; s=mail; bh=kn7srHoXkaZsxngVEFiL/AUftNzcyOW4mWabfcraxfs=; h=from:subject:date:to:cc:mime-version:content-transfer-encoding:list-unsubscribe:x-csa-complaints:list-unsubscribe-post:message-id:x-sib-id:feedback-id; b=ktOIy3PPJpDJZEngJwCRm96sBzDOPUDknj1dHjiMOxdqAz9M56J5/C2TlVEnnrqUiGFMPCP2CGuR ukNZDHXde3r1BERrNw6GtE9ebHzpfrN2K6MKK2wpkF+Lso9U8EJ91fW0j8iDV3KQkdDYlh/QoXec Lajup69mraIJ6T7EGJk= Message-Id: <20260820083646.11383-1-nicholas.johnson-opensource@outlook.com.au> Origin-messageId: <20260820083646.11383-1-nicholas.johnson-opensource@outlook.com.au> Feedback-ID: 77.32.148.23:11519862_-1:11519862:Sendinblue X-Mailin-EID: NDgxMTkzNjAyfmxpbnV4LWRvY0B2Z2VyLmtlcm5lbC5vcmd%2BPDIwMjYwODIwMDgzNjQ2LjExMzgzLTEtbmljaG9sYXMuam9obnNvbi1vcGVuc291cmNlQG91dGxvb2suY29tLmF1Pn5ndy5kLnNlbmRlci1zaWIuY29t Subject: [RFC PATCH 0/1] ALSA: add PreSonus Quantum PCI driver List-Unsubscribe-Post: List-Unsubscribe=One-Click From: "Nicholas Johnson" X-CSA-Complaints: csa-complaints@eco.de To: "Jaroslav Kysela" ,"Takashi Iwai" Date: Thu, 20 Aug 2026 16:36:45 +0800 X-sib-id: HpfoOkg4-GhoysC595l1UUolnoGE1WGaoCOLehz6jyJgK2ATT_b3e-5OPH2EaCPwPs4TLnv7SfBIujAiCMY1iWo5heiLxcaTRyaMtKor-3ZkwP_a-44F-YsDUQAjJWiPyhr0AmIXDmOKRLASdZ30st-MN5l18K2rP4AhP4yzgMS19n34t5vazQ Cc: "Jonathan Corbet" , "Shuah Khan" , , , , "Nicholas Johnson" X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi all, This RFC series adds an ALSA PCI driver for PreSonus Quantum PCIe/Thunderbo= lt audio interfaces. This project is independent and is not affiliated with PreSonus or Fender. The driver provides playback, capture, raw MIDI, sample-rate control, clock-source control, XRUN reporting, and surprise-removal handling. It targets the Quantum PCI family and currently has verified support for the Quantum 2626. The implementation keeps the hardware path direct and multichannel, with the aim of being small, reviewable, and suitable for eventual upstreaming. I want to thank my best friend, Ju Ern, for lending me the machine used to develop the driver, and the Asahi Linux project for m1n1 and the tooling that made the hardware tracing and analysis possible. Only the verified 2626 device ID is matched by the driver at present. I am sending this as RFC to gather review and testing before asking for merge. I would especially appreciate feedback on ALSA integration, device enumeration, runtime PM/latency handling, and upstream expectations for the driver. Thanks, Nicholas Johnson Nicholas Johnson (1): ALSA: pci: add PreSonus Quantum PCI driver Documentation/sound/cards/index.rst | 1 + .../sound/cards/presonus-quantum.rst | 120 ++ MAINTAINERS | 6 + sound/pci/Kconfig | 2 + sound/pci/Makefile | 1 + sound/pci/quantum/Kconfig | 19 + sound/pci/quantum/Makefile | 6 + sound/pci/quantum/quantum.h | 394 ++++++ sound/pci/quantum/quantum_dma.c | 853 ++++++++++++ sound/pci/quantum/quantum_main.c | 1148 +++++++++++++++++ sound/pci/quantum/quantum_midi.c | 180 +++ sound/pci/quantum/quantum_mixer.c | 214 +++ sound/pci/quantum/quantum_pcm.c | 609 +++++++++ sound/pci/quantum/quantum_regs.h | 52 + sound/pci/quantum/quantum_tci.c | 486 +++++++ 15 files changed, 4091 insertions(+) create mode 100644 Documentation/sound/cards/presonus-quantum.rst create mode 100644 sound/pci/quantum/Kconfig create mode 100644 sound/pci/quantum/Makefile create mode 100644 sound/pci/quantum/quantum.h create mode 100644 sound/pci/quantum/quantum_dma.c create mode 100644 sound/pci/quantum/quantum_main.c create mode 100644 sound/pci/quantum/quantum_midi.c create mode 100644 sound/pci/quantum/quantum_mixer.c create mode 100644 sound/pci/quantum/quantum_pcm.c create mode 100644 sound/pci/quantum/quantum_regs.h create mode 100644 sound/pci/quantum/quantum_tci.c --=20 2.50.1 (Apple Git-155)