summaryrefslogtreecommitdiff
path: root/sound/soc/sh/rcar/gen.c
blob: 87a6f2d627753c0f69ba0b51fb7e2d0bc1438f45 (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
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
/*
 * 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.
 */

/*
 * #define DEBUG
 *
 * you can also add below in
 * ${LINUX}/drivers/base/regmap/regmap.c
 * for regmap debug
 *
 * #define LOG_DEVICE "xxxx.rcar_sound"
 */

#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;

	dev_dbg(dev, "r %s[%d] - %4d : %08x\n",
		rsnd_mod_name(mod), rsnd_mod_id(mod), reg, val);

	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 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;

	dev_dbg(dev, "w %s[%d] - %4d : %08x\n",
		rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data);

	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 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;

	dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n",
		rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask);

	regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
				  mask, data);
}

#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(&regc, 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, &regc);
	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_VRCTR,	0xe18,	0x100),
		RSND_GEN_M_REG(DVC_VRPDR,	0xe1c,	0x100),
		RSND_GEN_M_REG(DVC_VRDBR,	0xe20,	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;
}