From 2cb29da3f2c29e62311eec6446be92aa5f2c1620 Mon Sep 17 00:00:00 2001
From: YC Hung <yc.hung@mediatek.com>
Date: Mon, 9 May 2022 12:04:25 -0500
Subject: [PATCH] ASoC: SOF: ipc: introduce cont_update_posn in sof_ipc_stream_params struct
Git-commit: 2cb29da3f2c29e62311eec6446be92aa5f2c1620
Patch-mainline: v5.19-rc1
References: jsc#PED-850
The host stream position is updated when no_stream_position is set as 0.
However current implementation updates host stream position only when
report data is larger than or equal to host period size which is decided
by the period size of host side. It maybe cause host stream position
update not in time. Therefore this patch introduces another field
"cont_update_posn", a boolean value aimed to update host stream position
continuously and based on period size of pipeline. It can get better
precise when need to update host stream position from firmware.
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: YC Hung <yc.hung@mediatek.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220509170425.54640-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/sof/stream.h | 3 ++-
include/uapi/sound/sof/abi.h | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/sound/sof/stream.h b/include/sound/sof/stream.h
index 58a0d49977d6..1db3bbc3e65d 100644
--- a/include/sound/sof/stream.h
+++ b/include/sound/sof/stream.h
@@ -85,8 +85,9 @@ struct sof_ipc_stream_params {
uint32_t host_period_bytes;
uint16_t no_stream_position; /**< 1 means don't send stream position */
+ uint8_t cont_update_posn; /**< 1 means continuous update stream position */
- uint16_t reserved[3];
+ uint8_t reserved[5];
uint16_t chmap[SOF_IPC_MAX_CHANNELS]; /**< channel map - SOF_CHMAP_ */
} __packed;
diff --git a/include/uapi/sound/sof/abi.h b/include/uapi/sound/sof/abi.h
index b87e46684623..0e7dccdc25fd 100644
--- a/include/uapi/sound/sof/abi.h
+++ b/include/uapi/sound/sof/abi.h
@@ -26,7 +26,7 @@
/* SOF ABI version major, minor and patch numbers */
#define SOF_ABI_MAJOR 3
-#define SOF_ABI_MINOR 20
+#define SOF_ABI_MINOR 21
#define SOF_ABI_PATCH 0
/* SOF ABI version number. Format within 32bit word is MMmmmppp */
--
2.35.3