13337744aSKuninori Morimoto /* 23337744aSKuninori Morimoto * Renesas R-Car Gen1 SRU/SSI support 33337744aSKuninori Morimoto * 43337744aSKuninori Morimoto * Copyright (C) 2013 Renesas Solutions Corp. 53337744aSKuninori Morimoto * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 63337744aSKuninori Morimoto * 73337744aSKuninori Morimoto * This program is free software; you can redistribute it and/or modify 83337744aSKuninori Morimoto * it under the terms of the GNU General Public License version 2 as 93337744aSKuninori Morimoto * published by the Free Software Foundation. 103337744aSKuninori Morimoto */ 113337744aSKuninori Morimoto #include "rsnd.h" 123337744aSKuninori Morimoto 133337744aSKuninori Morimoto struct rsnd_gen_ops { 143337744aSKuninori Morimoto int (*path_init)(struct rsnd_priv *priv, 153337744aSKuninori Morimoto struct rsnd_dai *rdai, 163337744aSKuninori Morimoto struct rsnd_dai_stream *io); 173337744aSKuninori Morimoto int (*path_exit)(struct rsnd_priv *priv, 183337744aSKuninori Morimoto struct rsnd_dai *rdai, 193337744aSKuninori Morimoto struct rsnd_dai_stream *io); 203337744aSKuninori Morimoto }; 213337744aSKuninori Morimoto 223337744aSKuninori Morimoto struct rsnd_gen_reg_map { 233337744aSKuninori Morimoto int index; /* -1 : not supported */ 243337744aSKuninori Morimoto u32 offset_id; /* offset of ssi0, ssi1, ssi2... */ 253337744aSKuninori Morimoto u32 offset_adr; /* offset of SSICR, SSISR, ... */ 263337744aSKuninori Morimoto }; 273337744aSKuninori Morimoto 283337744aSKuninori Morimoto struct rsnd_gen { 293337744aSKuninori Morimoto void __iomem *base[RSND_BASE_MAX]; 303337744aSKuninori Morimoto 313337744aSKuninori Morimoto struct rsnd_gen_reg_map reg_map[RSND_REG_MAX]; 323337744aSKuninori Morimoto struct rsnd_gen_ops *ops; 333337744aSKuninori Morimoto }; 343337744aSKuninori Morimoto 353337744aSKuninori Morimoto #define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen) 363337744aSKuninori Morimoto 373337744aSKuninori Morimoto #define rsnd_is_gen1(s) ((s)->info->flags & RSND_GEN1) 383337744aSKuninori Morimoto #define rsnd_is_gen2(s) ((s)->info->flags & RSND_GEN2) 393337744aSKuninori Morimoto 403337744aSKuninori Morimoto /* 413337744aSKuninori Morimoto * Gen2 423337744aSKuninori Morimoto * will be filled in the future 433337744aSKuninori Morimoto */ 443337744aSKuninori Morimoto 453337744aSKuninori Morimoto /* 463337744aSKuninori Morimoto * Gen1 473337744aSKuninori Morimoto */ 4807539c1dSKuninori Morimoto static int rsnd_gen1_path_init(struct rsnd_priv *priv, 4907539c1dSKuninori Morimoto struct rsnd_dai *rdai, 5007539c1dSKuninori Morimoto struct rsnd_dai_stream *io) 5107539c1dSKuninori Morimoto { 5207539c1dSKuninori Morimoto struct rsnd_dai_platform_info *info = rsnd_dai_get_platform_info(rdai); 5307539c1dSKuninori Morimoto struct rsnd_mod *mod; 5407539c1dSKuninori Morimoto int ret; 5507539c1dSKuninori Morimoto int id; 5607539c1dSKuninori Morimoto 5707539c1dSKuninori Morimoto /* 5807539c1dSKuninori Morimoto * Gen1 is created by SRU/SSI, and this SRU is base module of 5907539c1dSKuninori Morimoto * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU) 6007539c1dSKuninori Morimoto * 6107539c1dSKuninori Morimoto * Easy image is.. 6207539c1dSKuninori Morimoto * Gen1 SRU = Gen2 SCU + SSIU + etc 6307539c1dSKuninori Morimoto * 6407539c1dSKuninori Morimoto * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is 6507539c1dSKuninori Morimoto * using fixed path. 6607539c1dSKuninori Morimoto * 6707539c1dSKuninori Morimoto * Then, SSI id = SCU id here 6807539c1dSKuninori Morimoto */ 6907539c1dSKuninori Morimoto 7007539c1dSKuninori Morimoto if (rsnd_dai_is_play(rdai, io)) 7107539c1dSKuninori Morimoto id = info->ssi_id_playback; 7207539c1dSKuninori Morimoto else 7307539c1dSKuninori Morimoto id = info->ssi_id_capture; 7407539c1dSKuninori Morimoto 7507539c1dSKuninori Morimoto /* SCU */ 7607539c1dSKuninori Morimoto mod = rsnd_scu_mod_get(priv, id); 7707539c1dSKuninori Morimoto ret = rsnd_dai_connect(rdai, mod, io); 7807539c1dSKuninori Morimoto 7907539c1dSKuninori Morimoto return ret; 8007539c1dSKuninori Morimoto } 8107539c1dSKuninori Morimoto 8207539c1dSKuninori Morimoto static int rsnd_gen1_path_exit(struct rsnd_priv *priv, 8307539c1dSKuninori Morimoto struct rsnd_dai *rdai, 8407539c1dSKuninori Morimoto struct rsnd_dai_stream *io) 8507539c1dSKuninori Morimoto { 8607539c1dSKuninori Morimoto struct rsnd_mod *mod, *n; 8707539c1dSKuninori Morimoto int ret = 0; 8807539c1dSKuninori Morimoto 8907539c1dSKuninori Morimoto /* 9007539c1dSKuninori Morimoto * remove all mod from rdai 9107539c1dSKuninori Morimoto */ 9207539c1dSKuninori Morimoto for_each_rsnd_mod(mod, n, io) 9307539c1dSKuninori Morimoto ret |= rsnd_dai_disconnect(mod); 9407539c1dSKuninori Morimoto 9507539c1dSKuninori Morimoto return ret; 9607539c1dSKuninori Morimoto } 9707539c1dSKuninori Morimoto 9807539c1dSKuninori Morimoto static struct rsnd_gen_ops rsnd_gen1_ops = { 9907539c1dSKuninori Morimoto .path_init = rsnd_gen1_path_init, 10007539c1dSKuninori Morimoto .path_exit = rsnd_gen1_path_exit, 10107539c1dSKuninori Morimoto }; 10207539c1dSKuninori Morimoto 10307539c1dSKuninori Morimoto #define RSND_GEN1_REG_MAP(g, s, i, oi, oa) \ 10407539c1dSKuninori Morimoto do { \ 10507539c1dSKuninori Morimoto (g)->reg_map[RSND_REG_##i].index = RSND_GEN1_##s; \ 10607539c1dSKuninori Morimoto (g)->reg_map[RSND_REG_##i].offset_id = oi; \ 10707539c1dSKuninori Morimoto (g)->reg_map[RSND_REG_##i].offset_adr = oa; \ 10807539c1dSKuninori Morimoto } while (0) 10907539c1dSKuninori Morimoto 11007539c1dSKuninori Morimoto static void rsnd_gen1_reg_map_init(struct rsnd_gen *gen) 11107539c1dSKuninori Morimoto { 11207539c1dSKuninori Morimoto RSND_GEN1_REG_MAP(gen, SRU, SSI_MODE0, 0x0, 0xD0); 11307539c1dSKuninori Morimoto RSND_GEN1_REG_MAP(gen, SRU, SSI_MODE1, 0x0, 0xD4); 114dfc9403bSKuninori Morimoto 115dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, BRRA, 0x0, 0x00); 116dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, BRRB, 0x0, 0x04); 117dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, SSICKR, 0x0, 0x08); 118dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, AUDIO_CLK_SEL0, 0x0, 0x0c); 119dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, AUDIO_CLK_SEL1, 0x0, 0x10); 120dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, AUDIO_CLK_SEL3, 0x0, 0x18); 121dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, AUDIO_CLK_SEL4, 0x0, 0x1c); 122dfc9403bSKuninori Morimoto RSND_GEN1_REG_MAP(gen, ADG, AUDIO_CLK_SEL5, 0x0, 0x20); 12307539c1dSKuninori Morimoto } 12407539c1dSKuninori Morimoto 1253337744aSKuninori Morimoto static int rsnd_gen1_probe(struct platform_device *pdev, 1263337744aSKuninori Morimoto struct rcar_snd_info *info, 1273337744aSKuninori Morimoto struct rsnd_priv *priv) 1283337744aSKuninori Morimoto { 12907539c1dSKuninori Morimoto struct device *dev = rsnd_priv_to_dev(priv); 13007539c1dSKuninori Morimoto struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 13107539c1dSKuninori Morimoto struct resource *sru_res; 132dfc9403bSKuninori Morimoto struct resource *adg_res; 13307539c1dSKuninori Morimoto 13407539c1dSKuninori Morimoto /* 13507539c1dSKuninori Morimoto * map address 13607539c1dSKuninori Morimoto */ 13707539c1dSKuninori Morimoto sru_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SRU); 138dfc9403bSKuninori Morimoto adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_ADG); 139dfc9403bSKuninori Morimoto if (!sru_res || 140dfc9403bSKuninori Morimoto !adg_res) { 14107539c1dSKuninori Morimoto dev_err(dev, "Not enough SRU/SSI/ADG platform resources.\n"); 14207539c1dSKuninori Morimoto return -ENODEV; 14307539c1dSKuninori Morimoto } 14407539c1dSKuninori Morimoto 14507539c1dSKuninori Morimoto gen->ops = &rsnd_gen1_ops; 14607539c1dSKuninori Morimoto 14707539c1dSKuninori Morimoto gen->base[RSND_GEN1_SRU] = devm_ioremap_resource(dev, sru_res); 148dfc9403bSKuninori Morimoto gen->base[RSND_GEN1_ADG] = devm_ioremap_resource(dev, adg_res); 149dfc9403bSKuninori Morimoto if (!gen->base[RSND_GEN1_SRU] || 150dfc9403bSKuninori Morimoto !gen->base[RSND_GEN1_ADG]) { 15107539c1dSKuninori Morimoto dev_err(dev, "SRU/SSI/ADG ioremap failed\n"); 15207539c1dSKuninori Morimoto return -ENODEV; 15307539c1dSKuninori Morimoto } 15407539c1dSKuninori Morimoto 15507539c1dSKuninori Morimoto rsnd_gen1_reg_map_init(gen); 15607539c1dSKuninori Morimoto 15707539c1dSKuninori Morimoto dev_dbg(dev, "Gen1 device probed\n"); 15807539c1dSKuninori Morimoto dev_dbg(dev, "SRU : %08x => %p\n", sru_res->start, 15907539c1dSKuninori Morimoto gen->base[RSND_GEN1_SRU]); 160dfc9403bSKuninori Morimoto dev_dbg(dev, "ADG : %08x => %p\n", adg_res->start, 161dfc9403bSKuninori Morimoto gen->base[RSND_GEN1_ADG]); 16207539c1dSKuninori Morimoto 1633337744aSKuninori Morimoto return 0; 1643337744aSKuninori Morimoto } 1653337744aSKuninori Morimoto 1663337744aSKuninori Morimoto static void rsnd_gen1_remove(struct platform_device *pdev, 1673337744aSKuninori Morimoto struct rsnd_priv *priv) 1683337744aSKuninori Morimoto { 1693337744aSKuninori Morimoto } 1703337744aSKuninori Morimoto 1713337744aSKuninori Morimoto /* 1723337744aSKuninori Morimoto * Gen 1733337744aSKuninori Morimoto */ 1743337744aSKuninori Morimoto int rsnd_gen_path_init(struct rsnd_priv *priv, 1753337744aSKuninori Morimoto struct rsnd_dai *rdai, 1763337744aSKuninori Morimoto struct rsnd_dai_stream *io) 1773337744aSKuninori Morimoto { 1783337744aSKuninori Morimoto struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 1793337744aSKuninori Morimoto 1803337744aSKuninori Morimoto return gen->ops->path_init(priv, rdai, io); 1813337744aSKuninori Morimoto } 1823337744aSKuninori Morimoto 1833337744aSKuninori Morimoto int rsnd_gen_path_exit(struct rsnd_priv *priv, 1843337744aSKuninori Morimoto struct rsnd_dai *rdai, 1853337744aSKuninori Morimoto struct rsnd_dai_stream *io) 1863337744aSKuninori Morimoto { 1873337744aSKuninori Morimoto struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 1883337744aSKuninori Morimoto 1893337744aSKuninori Morimoto return gen->ops->path_exit(priv, rdai, io); 1903337744aSKuninori Morimoto } 1913337744aSKuninori Morimoto 1923337744aSKuninori Morimoto void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv, 1933337744aSKuninori Morimoto struct rsnd_mod *mod, 1943337744aSKuninori Morimoto enum rsnd_reg reg) 1953337744aSKuninori Morimoto { 1963337744aSKuninori Morimoto struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 1973337744aSKuninori Morimoto struct device *dev = rsnd_priv_to_dev(priv); 1983337744aSKuninori Morimoto int index; 1993337744aSKuninori Morimoto u32 offset_id, offset_adr; 2003337744aSKuninori Morimoto 2013337744aSKuninori Morimoto if (reg >= RSND_REG_MAX) { 2023337744aSKuninori Morimoto dev_err(dev, "rsnd_reg reg error\n"); 2033337744aSKuninori Morimoto return NULL; 2043337744aSKuninori Morimoto } 2053337744aSKuninori Morimoto 2063337744aSKuninori Morimoto index = gen->reg_map[reg].index; 2073337744aSKuninori Morimoto offset_id = gen->reg_map[reg].offset_id; 2083337744aSKuninori Morimoto offset_adr = gen->reg_map[reg].offset_adr; 2093337744aSKuninori Morimoto 2103337744aSKuninori Morimoto if (index < 0) { 2113337744aSKuninori Morimoto dev_err(dev, "unsupported reg access %d\n", reg); 2123337744aSKuninori Morimoto return NULL; 2133337744aSKuninori Morimoto } 2143337744aSKuninori Morimoto 2153337744aSKuninori Morimoto if (offset_id && mod) 2163337744aSKuninori Morimoto offset_id *= rsnd_mod_id(mod); 2173337744aSKuninori Morimoto 2183337744aSKuninori Morimoto /* 2193337744aSKuninori Morimoto * index/offset were set on gen1/gen2 2203337744aSKuninori Morimoto */ 2213337744aSKuninori Morimoto 2223337744aSKuninori Morimoto return gen->base[index] + offset_id + offset_adr; 2233337744aSKuninori Morimoto } 2243337744aSKuninori Morimoto 2253337744aSKuninori Morimoto int rsnd_gen_probe(struct platform_device *pdev, 2263337744aSKuninori Morimoto struct rcar_snd_info *info, 2273337744aSKuninori Morimoto struct rsnd_priv *priv) 2283337744aSKuninori Morimoto { 2293337744aSKuninori Morimoto struct device *dev = rsnd_priv_to_dev(priv); 2303337744aSKuninori Morimoto struct rsnd_gen *gen; 2313337744aSKuninori Morimoto int i; 2323337744aSKuninori Morimoto 2333337744aSKuninori Morimoto gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL); 2343337744aSKuninori Morimoto if (!gen) { 2353337744aSKuninori Morimoto dev_err(dev, "GEN allocate failed\n"); 2363337744aSKuninori Morimoto return -ENOMEM; 2373337744aSKuninori Morimoto } 2383337744aSKuninori Morimoto 2393337744aSKuninori Morimoto priv->gen = gen; 2403337744aSKuninori Morimoto 2413337744aSKuninori Morimoto /* 2423337744aSKuninori Morimoto * see 2433337744aSKuninori Morimoto * rsnd_reg_get() 2443337744aSKuninori Morimoto * rsnd_gen_probe() 2453337744aSKuninori Morimoto */ 2463337744aSKuninori Morimoto for (i = 0; i < RSND_REG_MAX; i++) 2473337744aSKuninori Morimoto gen->reg_map[i].index = -1; 2483337744aSKuninori Morimoto 2493337744aSKuninori Morimoto /* 2503337744aSKuninori Morimoto * init each module 2513337744aSKuninori Morimoto */ 2523337744aSKuninori Morimoto if (rsnd_is_gen1(priv)) 2533337744aSKuninori Morimoto return rsnd_gen1_probe(pdev, info, priv); 2543337744aSKuninori Morimoto 2553337744aSKuninori Morimoto dev_err(dev, "unknown generation R-Car sound device\n"); 2563337744aSKuninori Morimoto 2573337744aSKuninori Morimoto return -ENODEV; 2583337744aSKuninori Morimoto } 2593337744aSKuninori Morimoto 2603337744aSKuninori Morimoto void rsnd_gen_remove(struct platform_device *pdev, 2613337744aSKuninori Morimoto struct rsnd_priv *priv) 2623337744aSKuninori Morimoto { 2633337744aSKuninori Morimoto if (rsnd_is_gen1(priv)) 2643337744aSKuninori Morimoto rsnd_gen1_remove(pdev, priv); 2653337744aSKuninori Morimoto } 266