diff options
Diffstat (limited to 'sound/soc/sh/rcar/gen.c')
| -rw-r--r-- | sound/soc/sh/rcar/gen.c | 508 |
1 files changed, 508 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c new file mode 100644 index 00000000000..1dd2b7d38c2 --- /dev/null +++ b/sound/soc/sh/rcar/gen.c @@ -0,0 +1,508 @@ +/* + * 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. + */ +#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; +} |