/* * Renesas R-Car Gen1 SRU/SSI support * * Copyright (C) 2013 Renesas Solutions Corp. * Kuninori Morimoto * * 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. */ #include "rsnd.h" struct rsnd_gen { void __iomem *base[RSND_BASE_MAX]; struct rsnd_gen_ops *ops; struct regmap *regmap; struct regmap_field *regs[RSND_REG_MAX]; }; #define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen) #define RSND_REG_SET(gen, id, reg_id, offset, _id_offset, _id_size) \ [id] = { \ .reg = (unsigned int)gen->base[reg_id] + offset, \ .lsb = 0, \ .msb = 31, \ .id_size = _id_size, \ .id_offset = _id_offset, \ } /* * basic function */ static int rsnd_regmap_write32(void *context, const void *_data, size_t count) { struct rsnd_priv *priv = context; struct device *dev = rsnd_priv_to_dev(priv); u32 *data = (u32 *)_data; u32 val = data[1]; void __iomem *reg = (void *)data[0]; iowrite32(val, reg); dev_dbg(dev, "w %p : %08x\n", reg, val); return 0; } static int rsnd_regmap_read32(void *context, const void *_data, size_t reg_size, void *_val, size_t val_size) { struct rsnd_priv *priv = context; struct device *dev = rsnd_priv_to_dev(priv); u32 *data = (u32 *)_data; u32 *val = (u32 *)_val; void __iomem *reg = (void *)data[0]; *val = ioread32(reg); dev_dbg(dev, "r %p : %08x\n", reg, *val); return 0; } static struct regmap_bus rsnd_regmap_bus = { .write = rsnd_regmap_write32, .read = rsnd_regmap_read32, .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, .val_format_endian_default = REGMAP_ENDIAN_NATIVE, }; 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 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); return val; } void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg, u32 data) { struct rsnd_gen *gen = rsnd_priv_to_gen(priv); if (!rsnd_is_accessible_reg(priv, gen, reg)) return; 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 rsnd_gen *gen = rsnd_priv_to_gen(priv); if (!rsnd_is_accessible_reg(priv, gen, reg)) return; regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod), mask, data); } static int rsnd_gen_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen, struct reg_field *regf) { int i; struct device *dev = rsnd_priv_to_dev(priv); struct regmap_config regc; memset(®c, 0, sizeof(regc)); regc.reg_bits = 32; regc.val_bits = 32; gen->regmap = devm_regmap_init(dev, &rsnd_regmap_bus, priv, ®c); if (IS_ERR(gen->regmap)) { dev_err(dev, "regmap error %ld\n", PTR_ERR(gen->regmap)); return PTR_ERR(gen->regmap); } for (i = 0; i < RSND_REG_MAX; i++) { gen->regs[i] = NULL; if (!regf[i].reg) continue; gen->regs[i] = devm_regmap_field_alloc(dev, gen->regmap, regf[i]); if (IS_ERR(gen->regs[i])) return PTR_ERR(gen->regs[i]); } return 0; } /* * DMA read/write register offset * * RSND_xxx_I_N for Audio DMAC input * RSND_xxx_O_N for Audio DMAC output * RSND_xxx_I_P for Audio DMAC peri peri input * RSND_xxx_O_P for Audio DMAC peri peri output * * ex) R-Car H2 case * mod / DMAC in / DMAC out / DMAC PP in / DMAC pp out * SSI : 0xec541000 / 0xec241008 / 0xec24100c / 0xec400000 / 0xec400000 * SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000 * CMD : 0xec500000 / 0xec008000 0xec308000 */ #define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8) #define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc) #define RDMA_SSI_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) #define RDMA_SSI_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) #define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i)) #define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i)) #define RDMA_SRC_I_P(addr, i) (addr ##_reg - 0x00200000 + (0x400 * i)) #define RDMA_SRC_O_P(addr, i) (addr ##_reg - 0x001fc000 + (0x400 * i)) #define RDMA_CMD_O_N(addr, i) (addr ##_reg - 0x004f8000 + (0x400 * i)) #define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i)) void rsnd_gen_dma_addr(struct rsnd_priv *priv, struct rsnd_dma *dma, struct dma_slave_config *cfg, int is_play, int slave_id) { struct platform_device *pdev = rsnd_priv_to_pdev(priv); struct device *dev = rsnd_priv_to_dev(priv); struct rsnd_mod *mod = rsnd_dma_to_mod(dma); struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); dma_addr_t ssi_reg = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SSI)->start; dma_addr_t src_reg = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SCU)->start; int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod); int use_src = !!rsnd_io_to_mod_src(io); int use_dvc = !!rsnd_io_to_mod_dvc(io); int id = rsnd_mod_id(mod); struct dma_addr { dma_addr_t src_addr; dma_addr_t dst_addr; } dma_addrs[2][2][3] = { { /* SRC */ /* Capture */ {{ 0, 0 }, { RDMA_SRC_O_N(src, id), 0 }, { RDMA_CMD_O_N(src, id), 0 }}, /* Playback */ {{ 0, 0, }, { 0, RDMA_SRC_I_N(src, id) }, { 0, RDMA_SRC_I_N(src, id) }} }, { /* SSI */ /* Capture */ {{ RDMA_SSI_O_N(ssi, id), 0 }, { RDMA_SSI_O_P(ssi, id), RDMA_SRC_I_P(src, id) }, { RDMA_SSI_O_P(ssi, id), RDMA_SRC_I_P(src, id) }}, /* Playback */ {{ 0, RDMA_SSI_I_N(ssi, id) }, { RDMA_SRC_O_P(src, id), RDMA_SSI_I_P(ssi, id) }, { RDMA_CMD_O_P(src, id), RDMA_SSI_I_P(ssi, id) }} } }; cfg->slave_id = slave_id; cfg->src_addr = 0; cfg->dst_addr = 0; cfg->direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; /* * gen1 uses default DMA addr */ if (rsnd_is_gen1(priv)) return; /* it shouldn't happen */ if (use_dvc & !use_src) { dev_err(dev, "DVC is selected without SRC\n"); return; } cfg->src_addr = dma_addrs[is_ssi][is_play][use_src + use_dvc].src_addr; cfg->dst_addr = dma_addrs[is_ssi][is_play][use_src + use_dvc].dst_addr; dev_dbg(dev, "dma%d addr - src : %x / dst : %x\n", id, cfg->src_addr, cfg->dst_addr); } /* * Gen2 */ /* single address mapping */ #define RSND_GEN2_S_REG(gen, reg, id, offset) \ RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN2_##reg, offset, 0, 10) /* 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, 10) 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, SSI_BUSIF_MODE, 0x0, 0x80), RSND_GEN2_M_REG(gen, SSIU, SSI_BUSIF_ADINR,0x4, 0x80), RSND_GEN2_M_REG(gen, SSIU, SSI_CTRL, 0x10, 0x80), RSND_GEN2_M_REG(gen, SSIU, INT_ENABLE, 0x18, 0x80), RSND_GEN2_M_REG(gen, SCU, SRC_BUSIF_MODE, 0x0, 0x20), RSND_GEN2_M_REG(gen, SCU, SRC_ROUTE_MODE0,0xc, 0x20), RSND_GEN2_M_REG(gen, SCU, SRC_CTRL, 0x10, 0x20), RSND_GEN2_M_REG(gen, SCU, CMD_ROUTE_SLCT, 0x18c, 0x20), RSND_GEN2_M_REG(gen, SCU, CMD_CTRL, 0x190, 0x20), RSND_GEN2_M_REG(gen, SCU, SRC_SWRSR, 0x200, 0x40), RSND_GEN2_M_REG(gen, SCU, SRC_SRCIR, 0x204, 0x40), RSND_GEN2_M_REG(gen, SCU, SRC_ADINR, 0x214, 0x40), RSND_GEN2_M_REG(gen, SCU, SRC_IFSCR, 0x21c, 0x40), RSND_GEN2_M_REG(gen, SCU, SRC_IFSVR, 0x220, 0x40), RSND_GEN2_M_REG(gen, SCU, SRC_SRCCR, 0x224, 0x40), RSND_GEN2_M_REG(gen, SCU, SRC_BSDSR, 0x22c, 0x40), RSND_GEN2_M_REG(gen, SCU, SRC_BSISR, 0x238, 0x40), RSND_GEN2_M_REG(gen, SCU, DVC_SWRSR, 0xe00, 0x100), RSND_GEN2_M_REG(gen, SCU, DVC_DVUIR, 0xe04, 0x100), RSND_GEN2_M_REG(gen, SCU, DVC_ADINR, 0xe08, 0x100), RSND_GEN2_M_REG(gen, SCU, DVC_DVUCR, 0xe10, 0x100), RSND_GEN2_M_REG(gen, SCU, DVC_ZCMCR, 0xe14, 0x100), RSND_GEN2_M_REG(gen, SCU, DVC_VOL0R, 0xe28, 0x100), RSND_GEN2_M_REG(gen, SCU, DVC_VOL1R, 0xe2c, 0x100), RSND_GEN2_M_REG(gen, SCU, DVC_DVUER, 0xe48, 0x100), 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_S_REG(gen, ADG, DIV_EN, 0x30), RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL0, 0x34), RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL1, 0x38), RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL2, 0x3c), RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL3, 0x40), RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL4, 0x44), RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL0, 0x48), RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL1, 0x4c), RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL2, 0x50), RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL3, 0x54), RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL4, 0x58), RSND_GEN2_S_REG(gen, ADG, CMDOUT_TIMSEL, 0x5c), 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 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, "SCU : %pap => %p\n", &scu_res->start, gen->base[RSND_GEN2_SCU]); dev_dbg(dev, "ADG : %pap => %p\n", &adg_res->start, gen->base[RSND_GEN2_ADG]); dev_dbg(dev, "SSIU : %pap => %p\n", &ssiu_res->start, gen->base[RSND_GEN2_SSIU]); dev_dbg(dev, "SSI : %pap => %p\n", &ssi_res->start, gen->base[RSND_GEN2_SSI]); return 0; } /* * Gen1 */ /* single address mapping */ #define RSND_GEN1_S_REG(gen, reg, id, offset) \ RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, 0, 9) /* multi address mapping */ #define RSND_GEN1_M_REG(gen, reg, id, offset, _id_offset) \ RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, _id_offset, 9) static int rsnd_gen1_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen) { struct reg_field regf[RSND_REG_MAX] = { RSND_GEN1_S_REG(gen, SRU, SRC_ROUTE_SEL, 0x00), RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL0, 0x08), RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL1, 0x0c), RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL2, 0x10), RSND_GEN1_S_REG(gen, SRU, SRC_ROUTE_CTRL, 0xc0), RSND_GEN1_S_REG(gen, SRU, SSI_MODE0, 0xD0), RSND_GEN1_S_REG(gen, SRU, SSI_MODE1, 0xD4), RSND_GEN1_M_REG(gen, SRU, SRC_BUSIF_MODE, 0x20, 0x4), RSND_GEN1_M_REG(gen, SRU, SRC_ROUTE_MODE0,0x50, 0x8), RSND_GEN1_M_REG(gen, SRU, SRC_SWRSR, 0x200, 0x40), RSND_GEN1_M_REG(gen, SRU, SRC_SRCIR, 0x204, 0x40), RSND_GEN1_M_REG(gen, SRU, SRC_ADINR, 0x214, 0x40), RSND_GEN1_M_REG(gen, SRU, SRC_IFSCR, 0x21c, 0x40), RSND_GEN1_M_REG(gen, SRU, SRC_IFSVR, 0x220, 0x40), RSND_GEN1_M_REG(gen, SRU, SRC_SRCCR, 0x224, 0x40), RSND_GEN1_M_REG(gen, SRU, SRC_MNFSR, 0x228, 0x40), RSND_GEN1_S_REG(gen, ADG, BRRA, 0x00), RSND_GEN1_S_REG(gen, ADG, BRRB, 0x04), RSND_GEN1_S_REG(gen, ADG, SSICKR, 0x08), RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL0, 0x0c), RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL1, 0x10), RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL3, 0x18), RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL4, 0x1c), RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL5, 0x20), RSND_GEN1_M_REG(gen, SSI, SSICR, 0x00, 0x40), RSND_GEN1_M_REG(gen, SSI, SSISR, 0x04, 0x40), RSND_GEN1_M_REG(gen, SSI, SSITDR, 0x08, 0x40), RSND_GEN1_M_REG(gen, SSI, SSIRDR, 0x0c, 0x40), RSND_GEN1_M_REG(gen, SSI, SSIWSR, 0x20, 0x40), }; return rsnd_gen_regmap_init(priv, gen, regf); } static int rsnd_gen1_probe(struct platform_device *pdev, struct rsnd_priv *priv) { struct device *dev = rsnd_priv_to_dev(priv); struct rsnd_gen *gen = rsnd_priv_to_gen(priv); struct resource *sru_res; struct resource *adg_res; struct resource *ssi_res; int ret; /* * map address */ sru_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SRU); adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_ADG); ssi_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SSI); gen->base[RSND_GEN1_SRU] = devm_ioremap_resource(dev, sru_res); gen->base[RSND_GEN1_ADG] = devm_ioremap_resource(dev, adg_res); gen->base[RSND_GEN1_SSI] = devm_ioremap_resource(dev, ssi_res); if (IS_ERR(gen->base[RSND_GEN1_SRU]) || IS_ERR(gen->base[RSND_GEN1_ADG]) || IS_ERR(gen->base[RSND_GEN1_SSI])) return -ENODEV; ret = rsnd_gen1_regmap_init(priv, gen); if (ret < 0) return ret; dev_dbg(dev, "Gen1 device probed\n"); dev_dbg(dev, "SRU : %pap => %p\n", &sru_res->start, gen->base[RSND_GEN1_SRU]); dev_dbg(dev, "ADG : %pap => %p\n", &adg_res->start, gen->base[RSND_GEN1_ADG]); dev_dbg(dev, "SSI : %pap => %p\n", &ssi_res->start, gen->base[RSND_GEN1_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; }