Linux Sound subsystem development
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From: Bard Liao <yung-chuan.liao@linux.intel.com>
To: linux-sound@vger.kernel.org, broonie@kernel.org, tiwai@suse.de,
	vkoul@kernel.org
Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org,
	pierre-louis.bossart@linux.dev, bard.liao@intel.com
Subject: [PATCH v2 03/16] soundwire: extend sdw_stream_type to BPT
Date: Mon, 24 Feb 2025 14:44:37 +0800	[thread overview]
Message-ID: <20250224064451.33772-4-yung-chuan.liao@linux.intel.com> (raw)
In-Reply-To: <20250224064451.33772-1-yung-chuan.liao@linux.intel.com>

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>

BPT/BRA need to be special cased, i.e. there's no point in using the
bandwidth allocation since the entire frame can be used.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 include/linux/soundwire/sdw.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 2d6c30317792..857b670eb9a5 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -150,12 +150,14 @@ enum sdw_dpn_pkg_mode {
  *
  * @SDW_STREAM_PCM: PCM data stream
  * @SDW_STREAM_PDM: PDM data stream
+ * @SDW_STREAM_BPT: BPT data stream
  *
  * spec doesn't define this, but is used in implementation
  */
 enum sdw_stream_type {
 	SDW_STREAM_PCM = 0,
 	SDW_STREAM_PDM = 1,
+	SDW_STREAM_BPT = 2,
 };
 
 /**
@@ -879,7 +881,7 @@ struct sdw_port_config {
  * @ch_count: Channel count of the stream
  * @bps: Number of bits per audio sample
  * @direction: Data direction
- * @type: Stream type PCM or PDM
+ * @type: Stream type PCM, PDM or BPT
  */
 struct sdw_stream_config {
 	unsigned int frame_rate;
@@ -929,7 +931,7 @@ struct sdw_stream_params {
  * @name: SoundWire stream name
  * @params: Stream parameters
  * @state: Current state of the stream
- * @type: Stream type PCM or PDM
+ * @type: Stream type PCM, PDM or BPT
  * @m_rt_count: Count of Master runtime(s) in this stream
  * @master_list: List of Master runtime(s) in this stream.
  * master_list can contain only one m_rt per Master instance
-- 
2.43.0


  parent reply	other threads:[~2025-02-24  6:45 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-24  6:44 [PATCH v2 00/16] SoundWire/ASoC: add SDW BPT/BRA support Bard Liao
2025-02-24  6:44 ` [PATCH v2 01/16] Documentation: driver: add SoundWire BRA description Bard Liao
2025-02-24  6:44 ` [PATCH v2 02/16] soundwire: cadence: add BTP support for DP0 Bard Liao
2025-02-24  6:44 ` Bard Liao [this message]
2025-02-24  6:44 ` [PATCH v2 04/16] soundwire: stream: extend sdw_alloc_stream() to take 'type' parameter Bard Liao
2025-02-24  6:44 ` [PATCH v2 05/16] soundwire: stream: special-case the bus compute_params() routine Bard Liao
2025-02-24  6:44 ` [PATCH v2 06/16] soundwire: stream: reuse existing code for BPT stream Bard Liao
2025-02-24  6:44 ` [PATCH v2 07/16] soundwire: bus: add send_async/wait APIs for BPT protocol Bard Liao
2025-02-24  6:44 ` [PATCH v2 08/16] soundwire: bus: add bpt_stream pointer Bard Liao
2025-02-24  6:44 ` [PATCH v2 09/16] soundwire: cadence: add BTP/BRA helpers to format data Bard Liao
2025-02-27  6:43   ` Vinod Koul
2025-02-24  6:44 ` [PATCH v2 10/16] soundwire: intel_auxdevice: add indirection for BPT send_async/wait Bard Liao
2025-02-24  6:44 ` [PATCH v2 11/16] ASoC: SOF: Intel: hda-sdw-bpt: add helpers for SoundWire BPT DMA Bard Liao
2025-02-24 14:07   ` Mark Brown
2025-02-24  6:44 ` [PATCH v2 12/16] soundwire: intel: add BPT context definition Bard Liao
2025-02-24  6:44 ` [PATCH v2 13/16] soundwire: intel_ace2x: add BPT send_async/wait callbacks Bard Liao
2025-02-24  6:44 ` [PATCH v2 14/16] ASoC: SOF: Intel: hda-sdw-bpt: add CHAIN_DMA support Bard Liao
2025-02-24 14:08   ` Mark Brown
2025-02-24  6:44 ` [PATCH v2 15/16] soundwire: debugfs: add interface for BPT/BRA transfers Bard Liao
2025-02-24  6:44 ` [PATCH v2 16/16] ASoC: rt711-sdca: add DP0 support Bard Liao
2025-02-24 14:13   ` Mark Brown

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