summaryrefslogtreecommitdiffstats
path: root/sound/soc/sh/rcar/gen.c
blob: 50a1ef3eb1c6e243e7c749824c23acbd447fb9e5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
/*
 * 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(&regc, 0, sizeof(regc));
	regc.reg_bits = 32;
	regc.val_bits = 32;

	gen->regmap = devm_regmap_init(dev, &rsnd_regmap_bus, priv, &regc);
	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;
}

/*
 *		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,	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_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_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  : %08x => %p\n", scu_res->start,
		gen->base[RSND_GEN2_SCU]);
	dev_dbg(dev, "ADG  : %08x => %p\n", adg_res->start,
		gen->base[RSND_GEN2_ADG]);
	dev_dbg(dev, "SSIU : %08x => %p\n", ssiu_res->start,
		gen->base[RSND_GEN2_SSIU]);
	dev_dbg(dev, "SSI  : %08x => %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 : %08x => %p\n",	sru_res->start,
						gen->base[RSND_GEN1_SRU]);
	dev_dbg(dev, "ADG : %08x => %p\n",	adg_res->start,
						gen->base[RSND_GEN1_ADG]);
	dev_dbg(dev, "SSI : %08x => %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;
}