diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-11-30 08:54:03 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-30 18:11:23 +0000 |
| commit | 186fadc132f0d634c7b43202a240fbd3654b6623 (patch) | |
| tree | 7ae0a922d045d4ae7641157b2bd7e3ee047b46e6 /sound/soc/sh/rcar/ssi.c | |
| parent | 42ab9a791bd1fb6ad5a47ad66727dcd66093b1ae (diff) | |
| download | linux-next-186fadc132f0d634c7b43202a240fbd3654b6623.tar.gz | |
ASoC: rsnd: add TDM Extend Mode support
Renesas R-Car can out TDM by
1) 6ch x 1 DAI as TDM Extend Mode
2) 2ch x 4 x 1 DAI as TDM split Mode
3) 2ch x 3 DAI or
2ch x 4 DAI as TDM Multichannel Mode
This patch adds 1) TDM Extend Mode. Because of HW design,
this 6ch data will be outputed via 8ch data width.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh/rcar/ssi.c')
| -rw-r--r-- | sound/soc/sh/rcar/ssi.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 44e914132b02..628739f13f99 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -24,7 +24,9 @@ #define OIEN (1 << 26) /* Overflow Interrupt Enable */ #define IIEN (1 << 25) /* Idle Mode Interrupt Enable */ #define DIEN (1 << 24) /* Data Interrupt Enable */ - +#define CHNL_4 (1 << 22) /* Channels */ +#define CHNL_6 (2 << 22) /* Channels */ +#define CHNL_8 (3 << 22) /* Channels */ #define DWL_8 (0 << 19) /* Data Word Length */ #define DWL_16 (1 << 19) /* Data Word Length */ #define DWL_18 (2 << 19) /* Data Word Length */ @@ -57,6 +59,7 @@ * SSIWSR */ #define CONT (1 << 8) /* WS Continue Function */ +#define WS_MODE (1 << 0) /* WS Mode */ #define SSI_NAME "ssi" @@ -261,6 +264,7 @@ static int rsnd_ssi_config_init(struct rsnd_ssi *ssi, struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); u32 cr_own; u32 cr_mode; + u32 wsr; /* * always use 32bit system word. @@ -297,8 +301,20 @@ static int rsnd_ssi_config_init(struct rsnd_ssi *ssi, cr_mode = DIEN; /* PIO : enable Data interrupt */ } + /* + * TDM Extend Mode + * see + * rsnd_ssiu_init_gen2() + */ + wsr = ssi->wsr; + if (rsnd_get_slot_runtime(io) >= 6) { + wsr |= WS_MODE; + cr_own |= CHNL_8; + } + ssi->cr_own = cr_own; ssi->cr_mode = cr_mode; + ssi->wsr = wsr; return 0; } |