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ASoC: SOF: IPC4: update gain ipc msg definition to align with fw

Message ID 20230307110656.1816-1-peter.ujfalusi@linux.intel.com
State New
Headers show
Series ASoC: SOF: IPC4: update gain ipc msg definition to align with fw | expand

Commit Message

Peter Ujfalusi March 7, 2023, 11:06 a.m. UTC 
From: Rander Wang <rander.wang@intel.com>

Recent firmware changes modified the curve duration from 32 to 64 bits,
which breaks volume ramps. A simple solution would be to change the
definition, but unfortunately the ASoC topology framework only supports
up to 32 bit tokens.

This patch suggests breaking the 64 bit value in low and high parts, with
only the low-part extracted from topology and high-part only zeroes. Since
the curve duration is represented in hundred of nanoseconds, we can still
represent a 400s ramp, which is just fine. The defacto ABI change has no
effect on existing users since the IPC4 firmware has not been released just
yet.

Link: https://github.com/thesofproject/linux/issues/4026

Signed-off-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
---
 sound/soc/sof/ipc4-control.c  | 3 ++-
 sound/soc/sof/ipc4-topology.c | 4 ++--
 sound/soc/sof/ipc4-topology.h | 6 ++++--
 3 files changed, 8 insertions(+), 5 deletions(-)

Comments

Mark Brown March 8, 2023, 1:52 p.m. UTC | #1 
On Tue, 07 Mar 2023 13:06:56 +0200, Peter Ujfalusi wrote:
> Recent firmware changes modified the curve duration from 32 to 64 bits,
> which breaks volume ramps. A simple solution would be to change the
> definition, but unfortunately the ASoC topology framework only supports
> up to 32 bit tokens.
> 
> This patch suggests breaking the 64 bit value in low and high parts, with
> only the low-part extracted from topology and high-part only zeroes. Since
> the curve duration is represented in hundred of nanoseconds, we can still
> represent a 400s ramp, which is just fine. The defacto ABI change has no
> effect on existing users since the IPC4 firmware has not been released just
> yet.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: SOF: IPC4: update gain ipc msg definition to align with fw
      commit: e45cd86c3a78bfb9875a5eb8ab5dab459b59bbe2

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark
diff mbox series

Patch

diff --git a/sound/soc/sof/ipc4-control.c b/sound/soc/sof/ipc4-control.c
index 67bd2233fd9a..9a71af1a613a 100644
--- a/sound/soc/sof/ipc4-control.c
+++ b/sound/soc/sof/ipc4-control.c
@@ -97,7 +97,8 @@  sof_ipc4_set_volume_data(struct snd_sof_dev *sdev, struct snd_sof_widget *swidge
 		}
 
 		/* set curve type and duration from topology */
-		data.curve_duration = gain->data.curve_duration;
+		data.curve_duration_l = gain->data.curve_duration_l;
+		data.curve_duration_h = gain->data.curve_duration_h;
 		data.curve_type = gain->data.curve_type;
 
 		msg->data_ptr = &data;
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index 3e27c7a48ebd..b178e40d2f1f 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -107,7 +107,7 @@  static const struct sof_topology_token gain_tokens[] = {
 		get_token_u32, offsetof(struct sof_ipc4_gain_data, curve_type)},
 	{SOF_TKN_GAIN_RAMP_DURATION,
 		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
-		offsetof(struct sof_ipc4_gain_data, curve_duration)},
+		offsetof(struct sof_ipc4_gain_data, curve_duration_l)},
 	{SOF_TKN_GAIN_VAL, SND_SOC_TPLG_TUPLE_TYPE_WORD,
 		get_token_u32, offsetof(struct sof_ipc4_gain_data, init_val)},
 };
@@ -692,7 +692,7 @@  static int sof_ipc4_widget_setup_comp_pga(struct snd_sof_widget *swidget)
 
 	dev_dbg(scomp->dev,
 		"pga widget %s: ramp type: %d, ramp duration %d, initial gain value: %#x, cpc %d\n",
-		swidget->widget->name, gain->data.curve_type, gain->data.curve_duration,
+		swidget->widget->name, gain->data.curve_type, gain->data.curve_duration_l,
 		gain->data.init_val, gain->base_config.cpc);
 
 	ret = sof_ipc4_widget_setup_msg(swidget, &gain->msg);
diff --git a/sound/soc/sof/ipc4-topology.h b/sound/soc/sof/ipc4-topology.h
index 8507171a6e4d..cf1595f8d7d2 100644
--- a/sound/soc/sof/ipc4-topology.h
+++ b/sound/soc/sof/ipc4-topology.h
@@ -277,14 +277,16 @@  struct sof_ipc4_control_data {
  * @init_val: Initial value
  * @curve_type: Curve type
  * @reserved: reserved for future use
- * @curve_duration: Curve duration
+ * @curve_duration_l: Curve duration low part
+ * @curve_duration_h: Curve duration high part
  */
 struct sof_ipc4_gain_data {
 	uint32_t channels;
 	uint32_t init_val;
 	uint32_t curve_type;
 	uint32_t reserved;
-	uint32_t curve_duration;
+	uint32_t curve_duration_l;
+	uint32_t curve_duration_h;
 } __aligned(8);
 
 /**