This patch adds Gen2 sound support for Renesas R-Car. But, it is supporting PIO transfer only at this point
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/sh/rcar/gen.c | 91 +++++++++++++++++++++++++++++++++++++++++++--- sound/soc/sh/rcar/rsnd.h | 3 +- sound/soc/sh/rcar/ssi.c | 3 ++ 3 files changed, 91 insertions(+), 6 deletions(-)
diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c index a29e36e..bf066f7 100644 --- a/sound/soc/sh/rcar/gen.c +++ b/sound/soc/sh/rcar/gen.c @@ -213,9 +213,88 @@ int rsnd_gen_path_exit(struct rsnd_priv *priv,
/* * Gen2 - * will be filled in the future */
+/* single address mapping */ +#define RSND_GEN2_S_REG(gen, reg, id, offset) \ + RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN2_##reg, offset, 0, 9) + +/* multi address mapping */ +#define RSND_GEN2_M_REG(gen, reg, id, offset, _id_offset) \ + RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN2_##reg, offset, _id_offset, 9) + +static int rsnd_gen2_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen) +{ + struct reg_field regf[RSND_REG_MAX] = { + RSND_GEN2_S_REG(gen, SSIU, SSI_MODE0, 0x800), + RSND_GEN2_S_REG(gen, SSIU, SSI_MODE1, 0x804), + /* FIXME: it needs SSI_MODE2/3 in the future */ + RSND_GEN2_M_REG(gen, SSIU, INT_ENABLE, 0x18, 0x80), + + RSND_GEN2_S_REG(gen, ADG, BRRA, 0x00), + RSND_GEN2_S_REG(gen, ADG, BRRB, 0x04), + RSND_GEN2_S_REG(gen, ADG, SSICKR, 0x08), + RSND_GEN2_S_REG(gen, ADG, AUDIO_CLK_SEL0, 0x0c), + RSND_GEN2_S_REG(gen, ADG, AUDIO_CLK_SEL1, 0x10), + RSND_GEN2_S_REG(gen, ADG, AUDIO_CLK_SEL2, 0x14), + + RSND_GEN2_M_REG(gen, SSI, SSICR, 0x00, 0x40), + RSND_GEN2_M_REG(gen, SSI, SSISR, 0x04, 0x40), + RSND_GEN2_M_REG(gen, SSI, SSITDR, 0x08, 0x40), + RSND_GEN2_M_REG(gen, SSI, SSIRDR, 0x0c, 0x40), + RSND_GEN2_M_REG(gen, SSI, SSIWSR, 0x20, 0x40), + }; + + return rsnd_gen_regmap_init(priv, gen, regf); +} + +static int rsnd_gen2_probe(struct platform_device *pdev, + struct rcar_snd_info *info, + struct rsnd_priv *priv) +{ + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_gen *gen = rsnd_priv_to_gen(priv); + struct resource *scu_res; + struct resource *adg_res; + struct resource *ssiu_res; + struct resource *ssi_res; + int ret; + + /* + * map address + */ + scu_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SCU); + adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_ADG); + ssiu_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SSIU); + ssi_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SSI); + + gen->base[RSND_GEN2_SCU] = devm_ioremap_resource(dev, scu_res); + gen->base[RSND_GEN2_ADG] = devm_ioremap_resource(dev, adg_res); + gen->base[RSND_GEN2_SSIU] = devm_ioremap_resource(dev, ssiu_res); + gen->base[RSND_GEN2_SSI] = devm_ioremap_resource(dev, ssi_res); + if (IS_ERR(gen->base[RSND_GEN2_SCU]) || + IS_ERR(gen->base[RSND_GEN2_ADG]) || + IS_ERR(gen->base[RSND_GEN2_SSIU]) || + IS_ERR(gen->base[RSND_GEN2_SSI])) + return -ENODEV; + + ret = rsnd_gen2_regmap_init(priv, gen); + if (ret < 0) + return ret; + + dev_dbg(dev, "Gen2 device probed\n"); + dev_dbg(dev, "SRU : %08x => %p\n", scu_res->start, + gen->base[RSND_GEN2_SCU]); + dev_dbg(dev, "ADG : %08x => %p\n", adg_res->start, + gen->base[RSND_GEN2_ADG]); + dev_dbg(dev, "SSIU : %08x => %p\n", ssiu_res->start, + gen->base[RSND_GEN2_SSIU]); + dev_dbg(dev, "SSI : %08x => %p\n", ssi_res->start, + gen->base[RSND_GEN2_SSI]); + + return 0; +} + /* * Gen1 */ @@ -318,12 +397,14 @@ int rsnd_gen_probe(struct platform_device *pdev,
priv->gen = gen;
- if (rsnd_is_gen1(priv)) { + ret = -ENODEV; + if (rsnd_is_gen1(priv)) ret = rsnd_gen1_probe(pdev, info, priv); - } else { + else if (rsnd_is_gen2(priv)) + ret = rsnd_gen2_probe(pdev, info, priv); + + if (ret < 0) dev_err(dev, "unknown generation R-Car sound device\n"); - return -ENODEV; - }
return ret; } diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 748d6ca..4647c15 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -31,7 +31,7 @@ * see gen1/gen2 for detail */ enum rsnd_reg { - /* SRU/SCU */ + /* SRU/SCU/SSIU */ RSND_REG_SRC_ROUTE_SEL, RSND_REG_SRC_TMG_SEL0, RSND_REG_SRC_TMG_SEL1, @@ -41,6 +41,7 @@ enum rsnd_reg { RSND_REG_SSI_MODE1, RSND_REG_BUSIF_MODE, RSND_REG_BUSIF_ADINR, + RSND_REG_INT_ENABLE,
/* ADG */ RSND_REG_BRRA, diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 5ac20cd..a821b14 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -457,6 +457,9 @@ static int rsnd_ssi_pio_start(struct rsnd_mod *mod, /* enable PIO IRQ */ ssi->cr_etc = UIEN | OIEN | DIEN;
+ /* enable PIO interrupt */ + rsnd_mod_write(&ssi->mod, INT_ENABLE, 0x0f000000); + rsnd_ssi_hw_start(ssi, rdai, io);
dev_dbg(dev, "%s.%d start\n", rsnd_mod_name(mod), rsnd_mod_id(mod));