1 files changed, 421 insertions, 0 deletions

diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c
new file mode 100644
index 000000000..0230301fe
--- /dev/null
+++ b/sound/soc/sh/rcar/gen.c
@@ -0,0 +1,421 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car Gen1 SRU/SSI support
+//
+// Copyright (C) 2013 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+/*
+ * #define DEBUG
+ *
+ * you can also add below in
+ * ${LINUX}/drivers/base/regmap/regmap.c
+ * for regmap debug
+ *
+ * #define LOG_DEVICE "xxxx.rcar_sound"
+ */
+
+#include "rsnd.h"
+
+struct rsnd_gen {
+	struct rsnd_gen_ops *ops;
+
+	/* RSND_BASE_MAX base */
+	void __iomem *base[RSND_BASE_MAX];
+	phys_addr_t res[RSND_BASE_MAX];
+	struct regmap *regmap[RSND_BASE_MAX];
+
+	/* RSND_REG_MAX base */
+	struct regmap_field *regs[RSND_REG_MAX];
+	const char *reg_name[RSND_REG_MAX];
+};
+
+#define rsnd_priv_to_gen(p)	((struct rsnd_gen *)(p)->gen)
+#define rsnd_reg_name(gen, id)	((gen)->reg_name[id])
+
+struct rsnd_regmap_field_conf {
+	int idx;
+	unsigned int reg_offset;
+	unsigned int id_offset;
+	const char *reg_name;
+};
+
+#define RSND_REG_SET(id, offset, _id_offset, n)	\
+{						\
+	.idx = id,				\
+	.reg_offset = offset,			\
+	.id_offset = _id_offset,		\
+	.reg_name = n,				\
+}
+/* single address mapping */
+#define RSND_GEN_S_REG(id, offset)	\
+	RSND_REG_SET(RSND_REG_##id, offset, 0, #id)
+
+/* multi address mapping */
+#define RSND_GEN_M_REG(id, offset, _id_offset)	\
+	RSND_REG_SET(RSND_REG_##id, offset, _id_offset, #id)
+
+/*
+ *		basic function
+ */
+static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
+				  struct rsnd_gen *gen, enum rsnd_reg reg)
+{
+	if (!gen->regs[reg]) {
+		struct device *dev = rsnd_priv_to_dev(priv);
+
+		dev_err(dev, "unsupported register access %x\n", reg);
+		return 0;
+	}
+
+	return 1;
+}
+
+u32 rsnd_read(struct rsnd_priv *priv,
+	      struct rsnd_mod *mod, enum rsnd_reg reg)
+{
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+	u32 val;
+
+	if (!rsnd_is_accessible_reg(priv, gen, reg))
+		return 0;
+
+	regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);
+
+	dev_dbg(dev, "r %s[%d] - %-18s (%4d) : %08x\n",
+		rsnd_mod_name(mod), rsnd_mod_id(mod),
+		rsnd_reg_name(gen, reg), reg, val);
+
+	return val;
+}
+
+void rsnd_write(struct rsnd_priv *priv,
+		struct rsnd_mod *mod,
+		enum rsnd_reg reg, u32 data)
+{
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+	if (!rsnd_is_accessible_reg(priv, gen, reg))
+		return;
+
+	regmap_fields_force_write(gen->regs[reg], rsnd_mod_id(mod), data);
+
+	dev_dbg(dev, "w %s[%d] - %-18s (%4d) : %08x\n",
+		rsnd_mod_name(mod), rsnd_mod_id(mod),
+		rsnd_reg_name(gen, reg), reg, data);
+}
+
+void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
+	       enum rsnd_reg reg, u32 mask, u32 data)
+{
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+	if (!rsnd_is_accessible_reg(priv, gen, reg))
+		return;
+
+	regmap_fields_force_update_bits(gen->regs[reg],
+					rsnd_mod_id(mod), mask, data);
+
+	dev_dbg(dev, "b %s[%d] - %-18s (%4d) : %08x/%08x\n",
+		rsnd_mod_name(mod), rsnd_mod_id(mod),
+		rsnd_reg_name(gen, reg), reg, data, mask);
+
+}
+
+phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
+{
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+	return	gen->res[reg_id];
+}
+
+#define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf)		\
+	_rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
+static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
+				 int id_size,
+				 int reg_id,
+				 const char *name,
+				 const struct rsnd_regmap_field_conf *conf,
+				 int conf_size)
+{
+	struct platform_device *pdev = rsnd_priv_to_pdev(priv);
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct resource *res;
+	struct regmap_config regc;
+	struct regmap_field *regs;
+	struct regmap *regmap;
+	struct reg_field regf;
+	void __iomem *base;
+	int i;
+
+	memset(&regc, 0, sizeof(regc));
+	regc.reg_bits = 32;
+	regc.val_bits = 32;
+	regc.reg_stride = 4;
+	regc.name = name;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
+	if (!res)
+		res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
+	if (!res)
+		return -ENODEV;
+
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(dev, base, &regc);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	/* RSND_BASE_MAX base */
+	gen->base[reg_id] = base;
+	gen->regmap[reg_id] = regmap;
+	gen->res[reg_id] = res->start;
+
+	for (i = 0; i < conf_size; i++) {
+
+		regf.reg	= conf[i].reg_offset;
+		regf.id_offset	= conf[i].id_offset;
+		regf.lsb	= 0;
+		regf.msb	= 31;
+		regf.id_size	= id_size;
+
+		regs = devm_regmap_field_alloc(dev, regmap, regf);
+		if (IS_ERR(regs))
+			return PTR_ERR(regs);
+
+		/* RSND_REG_MAX base */
+		gen->regs[conf[i].idx] = regs;
+		gen->reg_name[conf[i].idx] = conf[i].reg_name;
+	}
+
+	return 0;
+}
+
+/*
+ *		Gen2
+ */
+static int rsnd_gen2_probe(struct rsnd_priv *priv)
+{
+	static const struct rsnd_regmap_field_conf conf_ssiu[] = {
+		RSND_GEN_S_REG(SSI_MODE0,	0x800),
+		RSND_GEN_S_REG(SSI_MODE1,	0x804),
+		RSND_GEN_S_REG(SSI_MODE2,	0x808),
+		RSND_GEN_S_REG(SSI_CONTROL,	0x810),
+		RSND_GEN_S_REG(SSI_SYS_STATUS0,	0x840),
+		RSND_GEN_S_REG(SSI_SYS_STATUS1,	0x844),
+		RSND_GEN_S_REG(SSI_SYS_STATUS2,	0x848),
+		RSND_GEN_S_REG(SSI_SYS_STATUS3,	0x84c),
+		RSND_GEN_S_REG(SSI_SYS_STATUS4,	0x880),
+		RSND_GEN_S_REG(SSI_SYS_STATUS5,	0x884),
+		RSND_GEN_S_REG(SSI_SYS_STATUS6,	0x888),
+		RSND_GEN_S_REG(SSI_SYS_STATUS7,	0x88c),
+		RSND_GEN_S_REG(HDMI0_SEL,	0x9e0),
+		RSND_GEN_S_REG(HDMI1_SEL,	0x9e4),
+
+		/* FIXME: it needs SSI_MODE2/3 in the future */
+		RSND_GEN_M_REG(SSI_BUSIF_MODE,	0x0,	0x80),
+		RSND_GEN_M_REG(SSI_BUSIF_ADINR,	0x4,	0x80),
+		RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8,	0x80),
+		RSND_GEN_M_REG(SSI_MODE,	0xc,	0x80),
+		RSND_GEN_M_REG(SSI_CTRL,	0x10,	0x80),
+		RSND_GEN_M_REG(SSI_INT_ENABLE,	0x18,	0x80),
+	};
+
+	static const struct rsnd_regmap_field_conf conf_scu[] = {
+		RSND_GEN_M_REG(SRC_I_BUSIF_MODE,0x0,	0x20),
+		RSND_GEN_M_REG(SRC_O_BUSIF_MODE,0x4,	0x20),
+		RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8,	0x20),
+		RSND_GEN_M_REG(SRC_ROUTE_MODE0,	0xc,	0x20),
+		RSND_GEN_M_REG(SRC_CTRL,	0x10,	0x20),
+		RSND_GEN_M_REG(SRC_INT_ENABLE0,	0x18,	0x20),
+		RSND_GEN_M_REG(CMD_BUSIF_MODE,	0x184,	0x20),
+		RSND_GEN_M_REG(CMD_BUSIF_DALIGN,0x188,	0x20),
+		RSND_GEN_M_REG(CMD_ROUTE_SLCT,	0x18c,	0x20),
+		RSND_GEN_M_REG(CMD_CTRL,	0x190,	0x20),
+		RSND_GEN_S_REG(SCU_SYS_STATUS0,	0x1c8),
+		RSND_GEN_S_REG(SCU_SYS_INT_EN0,	0x1cc),
+		RSND_GEN_S_REG(SCU_SYS_STATUS1,	0x1d0),
+		RSND_GEN_S_REG(SCU_SYS_INT_EN1,	0x1d4),
+		RSND_GEN_M_REG(SRC_SWRSR,	0x200,	0x40),
+		RSND_GEN_M_REG(SRC_SRCIR,	0x204,	0x40),
+		RSND_GEN_M_REG(SRC_ADINR,	0x214,	0x40),
+		RSND_GEN_M_REG(SRC_IFSCR,	0x21c,	0x40),
+		RSND_GEN_M_REG(SRC_IFSVR,	0x220,	0x40),
+		RSND_GEN_M_REG(SRC_SRCCR,	0x224,	0x40),
+		RSND_GEN_M_REG(SRC_BSDSR,	0x22c,	0x40),
+		RSND_GEN_M_REG(SRC_BSISR,	0x238,	0x40),
+		RSND_GEN_M_REG(CTU_SWRSR,	0x500,	0x100),
+		RSND_GEN_M_REG(CTU_CTUIR,	0x504,	0x100),
+		RSND_GEN_M_REG(CTU_ADINR,	0x508,	0x100),
+		RSND_GEN_M_REG(CTU_CPMDR,	0x510,	0x100),
+		RSND_GEN_M_REG(CTU_SCMDR,	0x514,	0x100),
+		RSND_GEN_M_REG(CTU_SV00R,	0x518,	0x100),
+		RSND_GEN_M_REG(CTU_SV01R,	0x51c,	0x100),
+		RSND_GEN_M_REG(CTU_SV02R,	0x520,	0x100),
+		RSND_GEN_M_REG(CTU_SV03R,	0x524,	0x100),
+		RSND_GEN_M_REG(CTU_SV04R,	0x528,	0x100),
+		RSND_GEN_M_REG(CTU_SV05R,	0x52c,	0x100),
+		RSND_GEN_M_REG(CTU_SV06R,	0x530,	0x100),
+		RSND_GEN_M_REG(CTU_SV07R,	0x534,	0x100),
+		RSND_GEN_M_REG(CTU_SV10R,	0x538,	0x100),
+		RSND_GEN_M_REG(CTU_SV11R,	0x53c,	0x100),
+		RSND_GEN_M_REG(CTU_SV12R,	0x540,	0x100),
+		RSND_GEN_M_REG(CTU_SV13R,	0x544,	0x100),
+		RSND_GEN_M_REG(CTU_SV14R,	0x548,	0x100),
+		RSND_GEN_M_REG(CTU_SV15R,	0x54c,	0x100),
+		RSND_GEN_M_REG(CTU_SV16R,	0x550,	0x100),
+		RSND_GEN_M_REG(CTU_SV17R,	0x554,	0x100),
+		RSND_GEN_M_REG(CTU_SV20R,	0x558,	0x100),
+		RSND_GEN_M_REG(CTU_SV21R,	0x55c,	0x100),
+		RSND_GEN_M_REG(CTU_SV22R,	0x560,	0x100),
+		RSND_GEN_M_REG(CTU_SV23R,	0x564,	0x100),
+		RSND_GEN_M_REG(CTU_SV24R,	0x568,	0x100),
+		RSND_GEN_M_REG(CTU_SV25R,	0x56c,	0x100),
+		RSND_GEN_M_REG(CTU_SV26R,	0x570,	0x100),
+		RSND_GEN_M_REG(CTU_SV27R,	0x574,	0x100),
+		RSND_GEN_M_REG(CTU_SV30R,	0x578,	0x100),
+		RSND_GEN_M_REG(CTU_SV31R,	0x57c,	0x100),
+		RSND_GEN_M_REG(CTU_SV32R,	0x580,	0x100),
+		RSND_GEN_M_REG(CTU_SV33R,	0x584,	0x100),
+		RSND_GEN_M_REG(CTU_SV34R,	0x588,	0x100),
+		RSND_GEN_M_REG(CTU_SV35R,	0x58c,	0x100),
+		RSND_GEN_M_REG(CTU_SV36R,	0x590,	0x100),
+		RSND_GEN_M_REG(CTU_SV37R,	0x594,	0x100),
+		RSND_GEN_M_REG(MIX_SWRSR,	0xd00,	0x40),
+		RSND_GEN_M_REG(MIX_MIXIR,	0xd04,	0x40),
+		RSND_GEN_M_REG(MIX_ADINR,	0xd08,	0x40),
+		RSND_GEN_M_REG(MIX_MIXMR,	0xd10,	0x40),
+		RSND_GEN_M_REG(MIX_MVPDR,	0xd14,	0x40),
+		RSND_GEN_M_REG(MIX_MDBAR,	0xd18,	0x40),
+		RSND_GEN_M_REG(MIX_MDBBR,	0xd1c,	0x40),
+		RSND_GEN_M_REG(MIX_MDBCR,	0xd20,	0x40),
+		RSND_GEN_M_REG(MIX_MDBDR,	0xd24,	0x40),
+		RSND_GEN_M_REG(MIX_MDBER,	0xd28,	0x40),
+		RSND_GEN_M_REG(DVC_SWRSR,	0xe00,	0x100),
+		RSND_GEN_M_REG(DVC_DVUIR,	0xe04,	0x100),
+		RSND_GEN_M_REG(DVC_ADINR,	0xe08,	0x100),
+		RSND_GEN_M_REG(DVC_DVUCR,	0xe10,	0x100),
+		RSND_GEN_M_REG(DVC_ZCMCR,	0xe14,	0x100),
+		RSND_GEN_M_REG(DVC_VRCTR,	0xe18,	0x100),
+		RSND_GEN_M_REG(DVC_VRPDR,	0xe1c,	0x100),
+		RSND_GEN_M_REG(DVC_VRDBR,	0xe20,	0x100),
+		RSND_GEN_M_REG(DVC_VOL0R,	0xe28,	0x100),
+		RSND_GEN_M_REG(DVC_VOL1R,	0xe2c,	0x100),
+		RSND_GEN_M_REG(DVC_VOL2R,	0xe30,	0x100),
+		RSND_GEN_M_REG(DVC_VOL3R,	0xe34,	0x100),
+		RSND_GEN_M_REG(DVC_VOL4R,	0xe38,	0x100),
+		RSND_GEN_M_REG(DVC_VOL5R,	0xe3c,	0x100),
+		RSND_GEN_M_REG(DVC_VOL6R,	0xe40,	0x100),
+		RSND_GEN_M_REG(DVC_VOL7R,	0xe44,	0x100),
+		RSND_GEN_M_REG(DVC_DVUER,	0xe48,	0x100),
+	};
+	static const struct rsnd_regmap_field_conf conf_adg[] = {
+		RSND_GEN_S_REG(BRRA,		0x00),
+		RSND_GEN_S_REG(BRRB,		0x04),
+		RSND_GEN_S_REG(BRGCKR,		0x08),
+		RSND_GEN_S_REG(AUDIO_CLK_SEL0,	0x0c),
+		RSND_GEN_S_REG(AUDIO_CLK_SEL1,	0x10),
+		RSND_GEN_S_REG(AUDIO_CLK_SEL2,	0x14),
+		RSND_GEN_S_REG(DIV_EN,		0x30),
+		RSND_GEN_S_REG(SRCIN_TIMSEL0,	0x34),
+		RSND_GEN_S_REG(SRCIN_TIMSEL1,	0x38),
+		RSND_GEN_S_REG(SRCIN_TIMSEL2,	0x3c),
+		RSND_GEN_S_REG(SRCIN_TIMSEL3,	0x40),
+		RSND_GEN_S_REG(SRCIN_TIMSEL4,	0x44),
+		RSND_GEN_S_REG(SRCOUT_TIMSEL0,	0x48),
+		RSND_GEN_S_REG(SRCOUT_TIMSEL1,	0x4c),
+		RSND_GEN_S_REG(SRCOUT_TIMSEL2,	0x50),
+		RSND_GEN_S_REG(SRCOUT_TIMSEL3,	0x54),
+		RSND_GEN_S_REG(SRCOUT_TIMSEL4,	0x58),
+		RSND_GEN_S_REG(CMDOUT_TIMSEL,	0x5c),
+	};
+	static const struct rsnd_regmap_field_conf conf_ssi[] = {
+		RSND_GEN_M_REG(SSICR,		0x00,	0x40),
+		RSND_GEN_M_REG(SSISR,		0x04,	0x40),
+		RSND_GEN_M_REG(SSITDR,		0x08,	0x40),
+		RSND_GEN_M_REG(SSIRDR,		0x0c,	0x40),
+		RSND_GEN_M_REG(SSIWSR,		0x20,	0x40),
+	};
+	int ret_ssiu;
+	int ret_scu;
+	int ret_adg;
+	int ret_ssi;
+
+	ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
+	ret_scu  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU,  "scu",  conf_scu);
+	ret_adg  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG,  "adg",  conf_adg);
+	ret_ssi  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI,  "ssi",  conf_ssi);
+	if (ret_ssiu < 0 ||
+	    ret_scu  < 0 ||
+	    ret_adg  < 0 ||
+	    ret_ssi  < 0)
+		return ret_ssiu | ret_scu | ret_adg | ret_ssi;
+
+	return 0;
+}
+
+/*
+ *		Gen1
+ */
+
+static int rsnd_gen1_probe(struct rsnd_priv *priv)
+{
+	static const struct rsnd_regmap_field_conf conf_adg[] = {
+		RSND_GEN_S_REG(BRRA,		0x00),
+		RSND_GEN_S_REG(BRRB,		0x04),
+		RSND_GEN_S_REG(BRGCKR,		0x08),
+		RSND_GEN_S_REG(AUDIO_CLK_SEL0,	0x0c),
+		RSND_GEN_S_REG(AUDIO_CLK_SEL1,	0x10),
+	};
+	static const struct rsnd_regmap_field_conf conf_ssi[] = {
+		RSND_GEN_M_REG(SSICR,		0x00,	0x40),
+		RSND_GEN_M_REG(SSISR,		0x04,	0x40),
+		RSND_GEN_M_REG(SSITDR,		0x08,	0x40),
+		RSND_GEN_M_REG(SSIRDR,		0x0c,	0x40),
+		RSND_GEN_M_REG(SSIWSR,		0x20,	0x40),
+	};
+	int ret_adg;
+	int ret_ssi;
+
+	ret_adg  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
+	ret_ssi  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
+	if (ret_adg  < 0 ||
+	    ret_ssi  < 0)
+		return ret_adg | ret_ssi;
+
+	return 0;
+}
+
+/*
+ *		Gen
+ */
+int rsnd_gen_probe(struct rsnd_priv *priv)
+{
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_gen *gen;
+	int ret;
+
+	gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
+	if (!gen)
+		return -ENOMEM;
+
+	priv->gen = gen;
+
+	ret = -ENODEV;
+	if (rsnd_is_gen1(priv))
+		ret = rsnd_gen1_probe(priv);
+	else if (rsnd_is_gen2(priv) ||
+		 rsnd_is_gen3(priv))
+		ret = rsnd_gen2_probe(priv);
+
+	if (ret < 0)
+		dev_err(dev, "unknown generation R-Car sound device\n");
+
+	return ret;
+}