| /* |
| * 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[RSND_BASE_MAX]; |
| struct regmap_field *regs[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; |
| |
| regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val); |
| |
| dev_dbg(dev, "r %s - 0x%04d : %08x\n", rsnd_mod_name(mod), 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_write(gen->regs[reg], rsnd_mod_id(mod), data); |
| |
| dev_dbg(dev, "w %s - 0x%04d : %08x\n", rsnd_mod_name(mod), 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_update_bits(gen->regs[reg], rsnd_mod_id(mod), |
| mask, data); |
| |
| dev_dbg(dev, "b %s - 0x%04d : %08x/%08x\n", |
| rsnd_mod_name(mod), reg, data, mask); |
| } |
| |
| #define rsnd_gen_regmap_init(priv, id_size, reg_id, conf) \ |
| _rsnd_gen_regmap_init(priv, id_size, reg_id, conf, ARRAY_SIZE(conf)) |
| static int _rsnd_gen_regmap_init(struct rsnd_priv *priv, |
| int id_size, |
| int reg_id, |
| 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; |
| |
| 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; |
| |
| 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; |
| } |
| |
| /* |
| * 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 |
| * SSIU: 0xec541000 / 0xec100000 / 0xec100000 / 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_SSIU_I_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i)) |
| #define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i)) |
| |
| #define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) |
| #define RDMA_SSIU_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)) |
| |
| static dma_addr_t |
| rsnd_gen2_dma_addr(struct rsnd_priv *priv, |
| struct rsnd_mod *mod, |
| int is_play, int is_from) |
| { |
| struct platform_device *pdev = rsnd_priv_to_pdev(priv); |
| struct device *dev = rsnd_priv_to_dev(priv); |
| 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 out_addr; |
| dma_addr_t in_addr; |
| } dma_addrs[3][2][3] = { |
| /* SRC */ |
| {{{ 0, 0 }, |
| /* Capture */ |
| { RDMA_SRC_O_N(src, id), RDMA_SRC_I_P(src, id) }, |
| { RDMA_CMD_O_N(src, id), RDMA_SRC_I_P(src, id) } }, |
| /* Playback */ |
| {{ 0, 0, }, |
| { RDMA_SRC_O_P(src, id), RDMA_SRC_I_N(src, id) }, |
| { RDMA_CMD_O_P(src, id), RDMA_SRC_I_N(src, id) } } |
| }, |
| /* SSI */ |
| /* Capture */ |
| {{{ RDMA_SSI_O_N(ssi, id), 0 }, |
| { RDMA_SSIU_O_P(ssi, id), 0 }, |
| { RDMA_SSIU_O_P(ssi, id), 0 } }, |
| /* Playback */ |
| {{ 0, RDMA_SSI_I_N(ssi, id) }, |
| { 0, RDMA_SSIU_I_P(ssi, id) }, |
| { 0, RDMA_SSIU_I_P(ssi, id) } } |
| }, |
| /* SSIU */ |
| /* Capture */ |
| {{{ RDMA_SSIU_O_N(ssi, id), 0 }, |
| { RDMA_SSIU_O_P(ssi, id), 0 }, |
| { RDMA_SSIU_O_P(ssi, id), 0 } }, |
| /* Playback */ |
| {{ 0, RDMA_SSIU_I_N(ssi, id) }, |
| { 0, RDMA_SSIU_I_P(ssi, id) }, |
| { 0, RDMA_SSIU_I_P(ssi, id) } } }, |
| }; |
| |
| /* it shouldn't happen */ |
| if (use_dvc & !use_src) |
| dev_err(dev, "DVC is selected without SRC\n"); |
| |
| /* use SSIU or SSI ? */ |
| if (is_ssi && (0 == strcmp(rsnd_mod_dma_name(mod), "ssiu"))) |
| is_ssi++; |
| |
| return (is_from) ? |
| dma_addrs[is_ssi][is_play][use_src + use_dvc].out_addr : |
| dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr; |
| } |
| |
| dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv, |
| struct rsnd_mod *mod, |
| int is_play, int is_from) |
| { |
| /* |
| * gen1 uses default DMA addr |
| */ |
| if (rsnd_is_gen1(priv)) |
| return 0; |
| |
| if (!mod) |
| return 0; |
| |
| return rsnd_gen2_dma_addr(priv, mod, is_play, is_from); |
| } |
| |
| /* |
| * Gen2 |
| */ |
| static int rsnd_gen2_probe(struct platform_device *pdev, |
| struct rsnd_priv *priv) |
| { |
| struct device *dev = rsnd_priv_to_dev(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(CMD_ROUTE_SLCT, 0x18c, 0x20), |
| RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20), |
| 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_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, conf_ssiu); |
| ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, conf_scu); |
| ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, conf_adg); |
| ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_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; |
| |
| dev_dbg(dev, "Gen2 is probed\n"); |
| |
| return 0; |
| } |
| |
| /* |
| * Gen1 |
| */ |
| |
| static int rsnd_gen1_probe(struct platform_device *pdev, |
| struct rsnd_priv *priv) |
| { |
| struct device *dev = rsnd_priv_to_dev(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), |
| }; |
| 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, conf_sru); |
| ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, conf_adg); |
| ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, conf_ssi); |
| if (ret_sru < 0 || |
| ret_adg < 0 || |
| ret_ssi < 0) |
| return ret_sru | ret_adg | ret_ssi; |
| |
| dev_dbg(dev, "Gen1 is probed\n"); |
| |
| 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; |
| } |