| // 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(®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); |
| |
| /* 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_BUSIF0_MODE, 0x0, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF0_ADINR, 0x4, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF0_DALIGN, 0x8, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF1_MODE, 0x20, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF1_ADINR, 0x24, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF1_DALIGN, 0x28, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF2_MODE, 0x40, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF2_ADINR, 0x44, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF2_DALIGN, 0x48, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF3_MODE, 0x60, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF3_ADINR, 0x64, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF3_DALIGN, 0x68, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF4_MODE, 0x500, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF4_ADINR, 0x504, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF4_DALIGN, 0x508, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF5_MODE, 0x520, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF5_ADINR, 0x524, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF5_DALIGN, 0x528, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF6_MODE, 0x540, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF6_ADINR, 0x544, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF6_DALIGN, 0x548, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF7_MODE, 0x560, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF7_ADINR, 0x564, 0x80), |
| RSND_GEN_M_REG(SSI_BUSIF7_DALIGN, 0x568, 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; |
| } |
