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-rw-r--r--sound/soc/sh/rcar/gen.c393
1 files changed, 393 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..8c7dc51b1
--- /dev/null
+++ b/sound/soc/sh/rcar/gen.c
@@ -0,0 +1,393 @@
+/*
+ * Renesas R-Car Gen1 SRU/SSI support
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * #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 {
+ void __iomem *base[RSND_BASE_MAX];
+
+ struct rsnd_gen_ops *ops;
+
+ struct regmap *regmap[RSND_BASE_MAX];
+ struct regmap_field *regs[RSND_REG_MAX];
+ phys_addr_t res[RSND_REG_MAX];
+};
+
+#define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)
+
+struct rsnd_regmap_field_conf {
+ int idx;
+ unsigned int reg_offset;
+ unsigned int id_offset;
+};
+
+#define RSND_REG_SET(id, offset, _id_offset) \
+{ \
+ .idx = id, \
+ .reg_offset = offset, \
+ .id_offset = _id_offset, \
+}
+/* single address mapping */
+#define RSND_GEN_S_REG(id, offset) \
+ RSND_REG_SET(RSND_REG_##id, offset, 0)
+
+/* multi address mapping */
+#define RSND_GEN_M_REG(id, offset, _id_offset) \
+ RSND_REG_SET(RSND_REG_##id, offset, _id_offset)
+
+/*
+ * 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;
+
+ dev_dbg(dev, "r %s[%d] - %4d : %08x\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), reg, val);
+
+ regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &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;
+
+ dev_dbg(dev, "w %s[%d] - %4d : %08x\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data);
+
+ regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), 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;
+
+ dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n",
+ rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask);
+
+ regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
+ mask, data);
+}
+
+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,
+ 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);
+
+ 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);
+
+ gen->regs[conf[i].idx] = regs;
+ }
+
+ return 0;
+}
+
+/*
+ * Gen2
+ */
+static int rsnd_gen2_probe(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_regmap_field_conf conf_ssiu[] = {
+ RSND_GEN_S_REG(SSI_MODE0, 0x800),
+ RSND_GEN_S_REG(SSI_MODE1, 0x804),
+ /* 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(BUSIF_DALIGN, 0x8, 0x80),
+ RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80),
+ RSND_GEN_M_REG(INT_ENABLE, 0x18, 0x80),
+ };
+ struct rsnd_regmap_field_conf conf_scu[] = {
+ RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x0, 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_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, 0x1c4),
+ 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(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_DVUER, 0xe48, 0x100),
+ };
+ struct rsnd_regmap_field_conf conf_adg[] = {
+ RSND_GEN_S_REG(BRRA, 0x00),
+ RSND_GEN_S_REG(BRRB, 0x04),
+ RSND_GEN_S_REG(SSICKR, 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),
+ };
+ 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 platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_regmap_field_conf conf_sru[] = {
+ RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00),
+ RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08),
+ RSND_GEN_S_REG(SRC_TMG_SEL1, 0x0c),
+ RSND_GEN_S_REG(SRC_TMG_SEL2, 0x10),
+ RSND_GEN_S_REG(SRC_ROUTE_CTRL, 0xc0),
+ RSND_GEN_S_REG(SSI_MODE0, 0xD0),
+ RSND_GEN_S_REG(SSI_MODE1, 0xD4),
+ RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x20, 0x4),
+ RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0x50, 0x8),
+ 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_MNFSR, 0x228, 0x40),
+ /*
+ * ADD US
+ *
+ * SRC_STATUS
+ * SRC_INT_EN
+ * SCU_SYS_STATUS0
+ * SCU_SYS_STATUS1
+ * SCU_SYS_INT_EN0
+ * SCU_SYS_INT_EN1
+ */
+ };
+ struct rsnd_regmap_field_conf conf_adg[] = {
+ RSND_GEN_S_REG(BRRA, 0x00),
+ RSND_GEN_S_REG(BRRB, 0x04),
+ RSND_GEN_S_REG(SSICKR, 0x08),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL3, 0x18),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL4, 0x1c),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL5, 0x20),
+ };
+ 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_sru;
+ int ret_adg;
+ int ret_ssi;
+
+ ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, "sru", conf_sru);
+ 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_sru < 0 ||
+ ret_adg < 0 ||
+ ret_ssi < 0)
+ return ret_sru | ret_adg | ret_ssi;
+
+ return 0;
+}
+
+/*
+ * Gen
+ */
+static void rsnd_of_parse_gen(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct rcar_snd_info *info = priv->info;
+
+ if (!of_data)
+ return;
+
+ info->flags = of_data->flags;
+}
+
+int rsnd_gen_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen;
+ int ret;
+
+ rsnd_of_parse_gen(pdev, of_data, priv);
+
+ gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
+ if (!gen) {
+ dev_err(dev, "GEN allocate failed\n");
+ return -ENOMEM;
+ }
+
+ priv->gen = gen;
+
+ ret = -ENODEV;
+ if (rsnd_is_gen1(priv))
+ ret = rsnd_gen1_probe(pdev, priv);
+ else if (rsnd_is_gen2(priv))
+ ret = rsnd_gen2_probe(pdev, priv);
+
+ if (ret < 0)
+ dev_err(dev, "unknown generation R-Car sound device\n");
+
+ return ret;
+}