The patch
ASoC: rsnd: update Audio DMA path search method
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.
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Thanks, Mark
From 7dfb49194557ccf27ab99c8c04c021320e7ae458 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Date: Wed, 15 Jul 2015 07:16:56 +0000 Subject: [PATCH] ASoC: rsnd: update Audio DMA path search method
Current rsnd driver is assuming Audio DMAC / Audio DMAC peri peri are used from SSI/SSIU/SRC/DVC. But we will add CTU/MIX to this driver. Then, current DMA path searching method is not understandable, and good enough for this purpose. This patch update DMA path search method, more simply.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Tested-by: Keita Kobayashi keita.kobayashi.ym@renesas.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/sh/rcar/dma.c | 88 +++++++++++++++++++++++++++++-------------------- 1 file changed, 53 insertions(+), 35 deletions(-)
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index a175863d239c..23282f48f71f 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -494,7 +494,7 @@ static dma_addr_t rsnd_dma_addr(struct rsnd_dai_stream *io, return rsnd_gen2_dma_addr(io, mod, is_play, is_from); }
-#define MOD_MAX 4 /* MEM/SSI/SRC/DVC */ +#define MOD_MAX (RSND_MOD_MAX + 1) /* +Memory */ static void rsnd_dma_of_path(struct rsnd_dma *dma, struct rsnd_dai_stream *io, int is_play, @@ -506,53 +506,71 @@ static void rsnd_dma_of_path(struct rsnd_dma *dma, struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); struct rsnd_mod *mod[MOD_MAX]; - int i, index; + struct rsnd_mod *mod_start, *mod_end; + struct rsnd_priv *priv = rsnd_mod_to_priv(this); + struct device *dev = rsnd_priv_to_dev(priv); + int nr, i;
+ if (!ssi) + return;
- for (i = 0; i < MOD_MAX; i++) + nr = 0; + for (i = 0; i < MOD_MAX; i++) { mod[i] = NULL; + nr += !!rsnd_io_to_mod(io, i); + }
/* - * in play case... + * [S] -*-> [E] + * [S] -*-> SRC -o-> [E] + * [S] -*-> SRC -> DVC -o-> [E] + * [S] -*-> SRC -> CTU -> MIX -> DVC -o-> [E] + * + * playback [S] = mem + * [E] = SSI * - * src -> dst + * capture [S] = SSI + * [E] = mem * - * mem -> SSI - * mem -> SRC -> SSI - * mem -> SRC -> DVC -> SSI + * -*-> Audio DMAC + * -o-> Audio DMAC peri peri */ - mod[0] = NULL; /* for "mem" */ - index = 1; - for (i = 1; i < MOD_MAX; i++) { - if (!src) { - mod[i] = ssi; - } else if (!dvc) { - mod[i] = src; - src = NULL; - } else { - if ((!is_play) && (this == src)) - this = dvc; + mod_start = (is_play) ? NULL : ssi; + mod_end = (is_play) ? ssi : NULL;
- mod[i] = (is_play) ? src : dvc; - i++; - mod[i] = (is_play) ? dvc : src; + mod[0] = mod_start; + for (i = 1; i < nr; i++) { + if (src) { + mod[i] = src; src = NULL; + } else if (dvc) { + mod[i] = dvc; dvc = NULL; } - - if (mod[i] == this) - index = i; - - if (mod[i] == ssi) - break; } + mod[i] = mod_end;
- if (is_play) { - *mod_from = mod[index - 1]; - *mod_to = mod[index]; + /* + * | SSI | SRC | + * -------------+-----+-----+ + * is_play | o | * | + * !is_play | * | o | + */ + if ((this == ssi) == (is_play)) { + *mod_from = mod[nr - 1]; + *mod_to = mod[nr]; } else { - *mod_from = mod[index]; - *mod_to = mod[index - 1]; + *mod_from = mod[0]; + *mod_to = mod[1]; + } + + dev_dbg(dev, "module connection (this is %s[%d])\n", + rsnd_mod_name(this), rsnd_mod_id(this)); + for (i = 0; i <= nr; i++) { + dev_dbg(dev, " %s[%d]%s\n", + rsnd_mod_name(mod[i]), rsnd_mod_id(mod[i]), + (mod[i] == *mod_from) ? " from" : + (mod[i] == *mod_to) ? " to" : ""); } }
@@ -580,8 +598,8 @@ void rsnd_dma_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma)
int rsnd_dma_init(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id) { - struct rsnd_mod *mod_from; - struct rsnd_mod *mod_to; + struct rsnd_mod *mod_from = NULL; + struct rsnd_mod *mod_to = NULL; struct rsnd_priv *priv = rsnd_io_to_priv(io); struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); struct device *dev = rsnd_priv_to_dev(priv);