diff mbox

Applied "ASoC: rsnd: update pointer more accurate" to the asoc tree

Message ID E1dIgfi-0003Yf-TD@debutante (mailing list archive)
State Not Applicable
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Mark Brown June 7, 2017, 7:31 p.m. UTC 
The patch

   ASoC: rsnd: update pointer more accurate

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

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

From 07b7acb51d283d8469696c906b91f1882696a4d4 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 7 Jun 2017 00:20:01 +0000
Subject: [PATCH] ASoC: rsnd: update pointer more accurate

Current rsnd driver updates pointer when DMA transfer was finished
in DMA transfer mode. But PulseAudio requests more accurate
pointer update when timer mode.
This patch consider about DMA transfer residue and update more
accurate pointer.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/sh/rcar/core.c |  6 ++++--
 sound/soc/sh/rcar/dma.c  | 26 +++++++++++++++++++++++++-
 sound/soc/sh/rcar/rsnd.h |  7 +++++++
 sound/soc/sh/rcar/ssi.c  | 12 ++++++++++++
 4 files changed, 48 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 080431543141..bc12c449857a 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -968,12 +968,14 @@  static int rsnd_hw_params(struct snd_pcm_substream *substream,
 
 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
 {
-	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
 	struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 	struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+	snd_pcm_uframes_t pointer = 0;
+
+	rsnd_dai_call(pointer, io, &pointer);
 
-	return bytes_to_frames(runtime, io->byte_pos);
+	return pointer;
 }
 
 static struct snd_pcm_ops rsnd_pcm_ops = {
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index 241cb3b08a07..05e538f4c8d5 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -25,6 +25,7 @@ 
 
 struct rsnd_dmaen {
 	struct dma_chan		*chan;
+	dma_cookie_t		cookie;
 	dma_addr_t		dma_buf;
 	unsigned int		dma_len;
 	unsigned int		dma_period;
@@ -292,7 +293,8 @@  static int rsnd_dmaen_start(struct rsnd_mod *mod,
 	for (i = 0; i < 2; i++)
 		rsnd_dmaen_sync(dmaen, io, i);
 
-	if (dmaengine_submit(desc) < 0) {
+	dmaen->cookie = dmaengine_submit(desc);
+	if (dmaen->cookie < 0) {
 		dev_err(dev, "dmaengine_submit() fail\n");
 		return -EIO;
 	}
@@ -348,12 +350,34 @@  static int rsnd_dmaen_attach(struct rsnd_dai_stream *io,
 	return 0;
 }
 
+static int rsnd_dmaen_pointer(struct rsnd_mod *mod,
+			      struct rsnd_dai_stream *io,
+			      snd_pcm_uframes_t *pointer)
+{
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+	struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+	struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+	struct dma_tx_state state;
+	enum dma_status status;
+	unsigned int pos = 0;
+
+	status = dmaengine_tx_status(dmaen->chan, dmaen->cookie, &state);
+	if (status == DMA_IN_PROGRESS || status == DMA_PAUSED) {
+		if (state.residue > 0 && state.residue <= dmaen->dma_len)
+			pos = dmaen->dma_len - state.residue;
+	}
+	*pointer = bytes_to_frames(runtime, pos);
+
+	return 0;
+}
+
 static struct rsnd_mod_ops rsnd_dmaen_ops = {
 	.name	= "audmac",
 	.nolock_start = rsnd_dmaen_nolock_start,
 	.nolock_stop  = rsnd_dmaen_nolock_stop,
 	.start	= rsnd_dmaen_start,
 	.stop	= rsnd_dmaen_stop,
+	.pointer= rsnd_dmaen_pointer,
 };
 
 /*
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 96a567de5f14..d4f89d5e6994 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -269,6 +269,9 @@  struct rsnd_mod_ops {
 			 struct rsnd_dai_stream *io,
 			 struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *hw_params);
+	int (*pointer)(struct rsnd_mod *mod,
+		       struct rsnd_dai_stream *io,
+		       snd_pcm_uframes_t *pointer);
 	int (*fallback)(struct rsnd_mod *mod,
 			struct rsnd_dai_stream *io,
 			struct rsnd_priv *priv);
@@ -306,6 +309,7 @@  struct rsnd_mod {
  * H	0: pcm_new
  * H	0: fallback
  * H	0: hw_params
+ * H	0: pointer
  */
 #define __rsnd_mod_shift_nolock_start	0
 #define __rsnd_mod_shift_nolock_stop	0
@@ -319,6 +323,7 @@  struct rsnd_mod {
 #define __rsnd_mod_shift_pcm_new	28 /* always called */
 #define __rsnd_mod_shift_fallback	28 /* always called */
 #define __rsnd_mod_shift_hw_params	28 /* always called */
+#define __rsnd_mod_shift_pointer	28 /* always called */
 
 #define __rsnd_mod_add_probe		0
 #define __rsnd_mod_add_remove		0
@@ -332,6 +337,7 @@  struct rsnd_mod {
 #define __rsnd_mod_add_pcm_new		0
 #define __rsnd_mod_add_fallback		0
 #define __rsnd_mod_add_hw_params	0
+#define __rsnd_mod_add_pointer		0
 
 #define __rsnd_mod_call_probe		0
 #define __rsnd_mod_call_remove		0
@@ -343,6 +349,7 @@  struct rsnd_mod {
 #define __rsnd_mod_call_pcm_new		0
 #define __rsnd_mod_call_fallback	0
 #define __rsnd_mod_call_hw_params	0
+#define __rsnd_mod_call_pointer		0
 #define __rsnd_mod_call_nolock_start	0
 #define __rsnd_mod_call_nolock_stop	1
 
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index eddd8afa0825..2363d0beeafd 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -685,6 +685,17 @@  static int rsnd_ssi_common_probe(struct rsnd_mod *mod,
 	return ret;
 }
 
+static int rsnd_ssi_pointer(struct rsnd_mod *mod,
+			    struct rsnd_dai_stream *io,
+			    snd_pcm_uframes_t *pointer)
+{
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+
+	*pointer = bytes_to_frames(runtime, io->byte_pos);
+
+	return 0;
+}
+
 static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
 	.name	= SSI_NAME,
 	.probe	= rsnd_ssi_common_probe,
@@ -693,6 +704,7 @@  static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
 	.start	= rsnd_ssi_start,
 	.stop	= rsnd_ssi_stop,
 	.irq	= rsnd_ssi_irq,
+	.pointer= rsnd_ssi_pointer,
 	.pcm_new = rsnd_ssi_pcm_new,
 	.hw_params = rsnd_ssi_hw_params,
 };