diff options
Diffstat (limited to 'kernel/sound/soc/sh/rcar/gen.c')
| -rw-r--r-- | kernel/sound/soc/sh/rcar/gen.c | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/kernel/sound/soc/sh/rcar/gen.c b/kernel/sound/soc/sh/rcar/gen.c new file mode 100644 index 000000000..8c7dc51b1 --- /dev/null +++ b/kernel/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(®c, 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, ®c); + 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; +} |