2 * Renesas R-Car Gen1 SRU/SSI support
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 int (*probe)(struct platform_device *pdev,
15 struct rcar_snd_info *info,
16 struct rsnd_priv *priv);
17 void (*remove)(struct platform_device *pdev,
18 struct rsnd_priv *priv);
19 int (*path_init)(struct rsnd_priv *priv,
20 struct rsnd_dai *rdai,
21 struct rsnd_dai_stream *io);
22 int (*path_exit)(struct rsnd_priv *priv,
23 struct rsnd_dai *rdai,
24 struct rsnd_dai_stream *io);
28 void __iomem *base[RSND_BASE_MAX];
30 struct rsnd_gen_ops *ops;
32 struct regmap *regmap;
33 struct regmap_field *regs[RSND_REG_MAX];
36 #define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)
38 #define RSND_REG_SET(gen, id, reg_id, offset, _id_offset, _id_size) \
40 .reg = (unsigned int)gen->base[reg_id] + offset, \
43 .id_size = _id_size, \
44 .id_offset = _id_offset, \
50 static int rsnd_regmap_write32(void *context, const void *_data, size_t count)
52 struct rsnd_priv *priv = context;
53 struct device *dev = rsnd_priv_to_dev(priv);
54 u32 *data = (u32 *)_data;
56 void __iomem *reg = (void *)data[0];
60 dev_dbg(dev, "w %p : %08x\n", reg, val);
65 static int rsnd_regmap_read32(void *context,
66 const void *_data, size_t reg_size,
67 void *_val, size_t val_size)
69 struct rsnd_priv *priv = context;
70 struct device *dev = rsnd_priv_to_dev(priv);
71 u32 *data = (u32 *)_data;
72 u32 *val = (u32 *)_val;
73 void __iomem *reg = (void *)data[0];
77 dev_dbg(dev, "r %p : %08x\n", reg, *val);
82 static struct regmap_bus rsnd_regmap_bus = {
83 .write = rsnd_regmap_write32,
84 .read = rsnd_regmap_read32,
85 .reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
86 .val_format_endian_default = REGMAP_ENDIAN_NATIVE,
89 u32 rsnd_read(struct rsnd_priv *priv,
90 struct rsnd_mod *mod, enum rsnd_reg reg)
92 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
95 regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);
100 void rsnd_write(struct rsnd_priv *priv,
101 struct rsnd_mod *mod,
102 enum rsnd_reg reg, u32 data)
104 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
106 regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
109 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
110 enum rsnd_reg reg, u32 mask, u32 data)
112 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
114 regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
120 * will be filled in the future
126 static int rsnd_gen1_path_init(struct rsnd_priv *priv,
127 struct rsnd_dai *rdai,
128 struct rsnd_dai_stream *io)
130 struct rsnd_mod *mod;
135 * Gen1 is created by SRU/SSI, and this SRU is base module of
136 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
139 * Gen1 SRU = Gen2 SCU + SSIU + etc
141 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
144 * Then, SSI id = SCU id here
148 mod = rsnd_ssi_mod_get_frm_dai(priv,
149 rsnd_dai_id(priv, rdai),
150 rsnd_dai_is_play(rdai, io));
151 id = rsnd_mod_id(mod);
154 mod = rsnd_ssi_mod_get(priv, id);
155 ret = rsnd_dai_connect(rdai, mod, io);
160 mod = rsnd_scu_mod_get(priv, id);
161 ret = rsnd_dai_connect(rdai, mod, io);
166 static int rsnd_gen1_path_exit(struct rsnd_priv *priv,
167 struct rsnd_dai *rdai,
168 struct rsnd_dai_stream *io)
170 struct rsnd_mod *mod, *n;
174 * remove all mod from rdai
176 for_each_rsnd_mod(mod, n, io)
177 ret |= rsnd_dai_disconnect(mod);
182 /* single address mapping */
183 #define RSND_GEN1_S_REG(gen, reg, id, offset) \
184 RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, 0, 9)
186 /* multi address mapping */
187 #define RSND_GEN1_M_REG(gen, reg, id, offset, _id_offset) \
188 RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, _id_offset, 9)
190 static int rsnd_gen1_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
193 struct device *dev = rsnd_priv_to_dev(priv);
194 struct regmap_config regc;
195 struct reg_field regf[RSND_REG_MAX] = {
196 RSND_GEN1_S_REG(gen, SRU, SRC_ROUTE_SEL, 0x00),
197 RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL0, 0x08),
198 RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL1, 0x0c),
199 RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL2, 0x10),
200 RSND_GEN1_S_REG(gen, SRU, SRC_CTRL, 0xc0),
201 RSND_GEN1_S_REG(gen, SRU, SSI_MODE0, 0xD0),
202 RSND_GEN1_S_REG(gen, SRU, SSI_MODE1, 0xD4),
203 RSND_GEN1_M_REG(gen, SRU, BUSIF_MODE, 0x20, 0x4),
204 RSND_GEN1_M_REG(gen, SRU, BUSIF_ADINR, 0x214, 0x40),
206 RSND_GEN1_S_REG(gen, ADG, BRRA, 0x00),
207 RSND_GEN1_S_REG(gen, ADG, BRRB, 0x04),
208 RSND_GEN1_S_REG(gen, ADG, SSICKR, 0x08),
209 RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL0, 0x0c),
210 RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL1, 0x10),
211 RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL3, 0x18),
212 RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL4, 0x1c),
213 RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL5, 0x20),
215 RSND_GEN1_M_REG(gen, SSI, SSICR, 0x00, 0x40),
216 RSND_GEN1_M_REG(gen, SSI, SSISR, 0x04, 0x40),
217 RSND_GEN1_M_REG(gen, SSI, SSITDR, 0x08, 0x40),
218 RSND_GEN1_M_REG(gen, SSI, SSIRDR, 0x0c, 0x40),
219 RSND_GEN1_M_REG(gen, SSI, SSIWSR, 0x20, 0x40),
222 memset(®c, 0, sizeof(regc));
226 gen->regmap = devm_regmap_init(dev, &rsnd_regmap_bus, priv, ®c);
227 if (IS_ERR(gen->regmap)) {
228 dev_err(dev, "regmap error %ld\n", PTR_ERR(gen->regmap));
229 return PTR_ERR(gen->regmap);
232 for (i = 0; i < RSND_REG_MAX; i++) {
233 gen->regs[i] = devm_regmap_field_alloc(dev, gen->regmap, regf[i]);
234 if (IS_ERR(gen->regs[i]))
235 return PTR_ERR(gen->regs[i]);
242 static int rsnd_gen1_probe(struct platform_device *pdev,
243 struct rcar_snd_info *info,
244 struct rsnd_priv *priv)
246 struct device *dev = rsnd_priv_to_dev(priv);
247 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
248 struct resource *sru_res;
249 struct resource *adg_res;
250 struct resource *ssi_res;
256 sru_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SRU);
257 adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_ADG);
258 ssi_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SSI);
260 gen->base[RSND_GEN1_SRU] = devm_ioremap_resource(dev, sru_res);
261 gen->base[RSND_GEN1_ADG] = devm_ioremap_resource(dev, adg_res);
262 gen->base[RSND_GEN1_SSI] = devm_ioremap_resource(dev, ssi_res);
263 if (IS_ERR(gen->base[RSND_GEN1_SRU]) ||
264 IS_ERR(gen->base[RSND_GEN1_ADG]) ||
265 IS_ERR(gen->base[RSND_GEN1_SSI]))
268 ret = rsnd_gen1_regmap_init(priv, gen);
272 dev_dbg(dev, "Gen1 device probed\n");
273 dev_dbg(dev, "SRU : %08x => %p\n", sru_res->start,
274 gen->base[RSND_GEN1_SRU]);
275 dev_dbg(dev, "ADG : %08x => %p\n", adg_res->start,
276 gen->base[RSND_GEN1_ADG]);
277 dev_dbg(dev, "SSI : %08x => %p\n", ssi_res->start,
278 gen->base[RSND_GEN1_SSI]);
284 static void rsnd_gen1_remove(struct platform_device *pdev,
285 struct rsnd_priv *priv)
289 static struct rsnd_gen_ops rsnd_gen1_ops = {
290 .probe = rsnd_gen1_probe,
291 .remove = rsnd_gen1_remove,
292 .path_init = rsnd_gen1_path_init,
293 .path_exit = rsnd_gen1_path_exit,
299 int rsnd_gen_path_init(struct rsnd_priv *priv,
300 struct rsnd_dai *rdai,
301 struct rsnd_dai_stream *io)
303 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
305 return gen->ops->path_init(priv, rdai, io);
308 int rsnd_gen_path_exit(struct rsnd_priv *priv,
309 struct rsnd_dai *rdai,
310 struct rsnd_dai_stream *io)
312 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
314 return gen->ops->path_exit(priv, rdai, io);
317 int rsnd_gen_probe(struct platform_device *pdev,
318 struct rcar_snd_info *info,
319 struct rsnd_priv *priv)
321 struct device *dev = rsnd_priv_to_dev(priv);
322 struct rsnd_gen *gen;
324 gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
326 dev_err(dev, "GEN allocate failed\n");
330 if (rsnd_is_gen1(priv))
331 gen->ops = &rsnd_gen1_ops;
334 dev_err(dev, "unknown generation R-Car sound device\n");
340 return gen->ops->probe(pdev, info, priv);
343 void rsnd_gen_remove(struct platform_device *pdev,
344 struct rsnd_priv *priv)
346 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
348 gen->ops->remove(pdev, priv);