summaryrefslogtreecommitdiffstats
path: root/sound/soc/sh/rcar/mix.c
blob: 8e3b57eaa708da568e0688d5310f5150eba2eaa4 (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
// SPDX-License-Identifier: GPL-2.0
//
// mix.c
//
// Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

/*
 *		    CTUn	MIXn
 *		    +------+	+------+
 * [SRC3 / SRC6] -> |CTU n0| ->	[MIX n0| ->
 * [SRC4 / SRC9] -> |CTU n1| ->	[MIX n1| ->
 * [SRC0 / SRC1] -> |CTU n2| ->	[MIX n2| ->
 * [SRC2 / SRC5] -> |CTU n3| ->	[MIX n3| ->
 *		    +------+	+------+
 *
 * ex)
 *	DAI0 : playback = <&src0 &ctu02 &mix0 &dvc0 &ssi0>;
 *	DAI1 : playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
 *
 * MIX Volume
 *	amixer set "MIX",0  100%  // DAI0 Volume
 *	amixer set "MIX",1  100%  // DAI1 Volume
 *
 * Volume Ramp
 *	amixer set "MIX Ramp Up Rate"   "0.125 dB/1 step"
 *	amixer set "MIX Ramp Down Rate" "4 dB/1 step"
 *	amixer set "MIX Ramp" on
 *	aplay xxx.wav &
 *	amixer set "MIX",0  80%  // DAI0 Volume Down
 *	amixer set "MIX",1 100%  // DAI1 Volume Up
 */

#include "rsnd.h"

#define MIX_NAME_SIZE	16
#define MIX_NAME "mix"

struct rsnd_mix {
	struct rsnd_mod mod;
	struct rsnd_kctrl_cfg_s volumeA; /* MDBAR */
	struct rsnd_kctrl_cfg_s volumeB; /* MDBBR */
	struct rsnd_kctrl_cfg_s volumeC; /* MDBCR */
	struct rsnd_kctrl_cfg_s volumeD; /* MDBDR */
	struct rsnd_kctrl_cfg_s ren;	/* Ramp Enable */
	struct rsnd_kctrl_cfg_s rup;	/* Ramp Rate Up */
	struct rsnd_kctrl_cfg_s rdw;	/* Ramp Rate Down */
	u32 flags;
};

#define ONCE_KCTRL_INITIALIZED		(1 << 0)
#define HAS_VOLA			(1 << 1)
#define HAS_VOLB			(1 << 2)
#define HAS_VOLC			(1 << 3)
#define HAS_VOLD			(1 << 4)

#define VOL_MAX				0x3ff

#define rsnd_mod_to_mix(_mod)	\
	container_of((_mod), struct rsnd_mix, mod)

#define rsnd_mix_get(priv, id) ((struct rsnd_mix *)(priv->mix) + id)
#define rsnd_mix_nr(priv) ((priv)->mix_nr)
#define for_each_rsnd_mix(pos, priv, i)					\
	for ((i) = 0;							\
	     ((i) < rsnd_mix_nr(priv)) &&				\
		     ((pos) = (struct rsnd_mix *)(priv)->mix + i);	\
	     i++)

static void rsnd_mix_activation(struct rsnd_mod *mod)
{
	rsnd_mod_write(mod, MIX_SWRSR, 0);
	rsnd_mod_write(mod, MIX_SWRSR, 1);
}

static void rsnd_mix_halt(struct rsnd_mod *mod)
{
	rsnd_mod_write(mod, MIX_MIXIR, 1);
	rsnd_mod_write(mod, MIX_SWRSR, 0);
}

#define rsnd_mix_get_vol(mix, X) \
	rsnd_flags_has(mix, HAS_VOL##X) ? \
		(VOL_MAX - rsnd_kctrl_vals(mix->volume##X)) : 0
static void rsnd_mix_volume_parameter(struct rsnd_dai_stream *io,
				      struct rsnd_mod *mod)
{
	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_mix *mix = rsnd_mod_to_mix(mod);
	u32 volA = rsnd_mix_get_vol(mix, A);
	u32 volB = rsnd_mix_get_vol(mix, B);
	u32 volC = rsnd_mix_get_vol(mix, C);
	u32 volD = rsnd_mix_get_vol(mix, D);

	dev_dbg(dev, "MIX A/B/C/D = %02x/%02x/%02x/%02x\n",
		volA, volB, volC, volD);

	rsnd_mod_write(mod, MIX_MDBAR, volA);
	rsnd_mod_write(mod, MIX_MDBBR, volB);
	rsnd_mod_write(mod, MIX_MDBCR, volC);
	rsnd_mod_write(mod, MIX_MDBDR, volD);
}

static void rsnd_mix_volume_init(struct rsnd_dai_stream *io,
				 struct rsnd_mod *mod)
{
	struct rsnd_mix *mix = rsnd_mod_to_mix(mod);

	rsnd_mod_write(mod, MIX_MIXIR, 1);

	/* General Information */
	rsnd_mod_write(mod, MIX_ADINR, rsnd_runtime_channel_after_ctu(io));

	/* volume step */
	rsnd_mod_write(mod, MIX_MIXMR, rsnd_kctrl_vals(mix->ren));
	rsnd_mod_write(mod, MIX_MVPDR, rsnd_kctrl_vals(mix->rup) << 8 |
				       rsnd_kctrl_vals(mix->rdw));

	/* common volume parameter */
	rsnd_mix_volume_parameter(io, mod);

	rsnd_mod_write(mod, MIX_MIXIR, 0);
}

static void rsnd_mix_volume_update(struct rsnd_dai_stream *io,
				  struct rsnd_mod *mod)
{
	/* Disable MIX dB setting */
	rsnd_mod_write(mod, MIX_MDBER, 0);

	/* common volume parameter */
	rsnd_mix_volume_parameter(io, mod);

	/* Enable MIX dB setting */
	rsnd_mod_write(mod, MIX_MDBER, 1);
}

static int rsnd_mix_probe_(struct rsnd_mod *mod,
			   struct rsnd_dai_stream *io,
			   struct rsnd_priv *priv)
{
	return rsnd_cmd_attach(io, rsnd_mod_id(mod));
}

static int rsnd_mix_init(struct rsnd_mod *mod,
			 struct rsnd_dai_stream *io,
			 struct rsnd_priv *priv)
{
	rsnd_mod_power_on(mod);

	rsnd_mix_activation(mod);

	rsnd_mix_volume_init(io, mod);

	rsnd_mix_volume_update(io, mod);

	return 0;
}

static int rsnd_mix_quit(struct rsnd_mod *mod,
			 struct rsnd_dai_stream *io,
			 struct rsnd_priv *priv)
{
	rsnd_mix_halt(mod);

	rsnd_mod_power_off(mod);

	return 0;
}

static int rsnd_mix_pcm_new(struct rsnd_mod *mod,
			    struct rsnd_dai_stream *io,
			    struct snd_soc_pcm_runtime *rtd)
{
	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_mix *mix = rsnd_mod_to_mix(mod);
	struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
	struct rsnd_kctrl_cfg_s *volume;
	int ret;

	switch (rsnd_mod_id(src_mod)) {
	case 3:
	case 6:	/* MDBAR */
		volume = &mix->volumeA;
		rsnd_flags_set(mix, HAS_VOLA);
		break;
	case 4:
	case 9:	/* MDBBR */
		volume = &mix->volumeB;
		rsnd_flags_set(mix, HAS_VOLB);
		break;
	case 0:
	case 1:	/* MDBCR */
		volume = &mix->volumeC;
		rsnd_flags_set(mix, HAS_VOLC);
		break;
	case 2:
	case 5:	/* MDBDR */
		volume = &mix->volumeD;
		rsnd_flags_set(mix, HAS_VOLD);
		break;
	default:
		dev_err(dev, "unknown SRC is connected\n");
		return -EINVAL;
	}

	/* Volume */
	ret = rsnd_kctrl_new_s(mod, io, rtd,
			       "MIX Playback Volume",
			       rsnd_kctrl_accept_anytime,
			       rsnd_mix_volume_update,
			       volume, VOL_MAX);
	if (ret < 0)
		return ret;
	rsnd_kctrl_vals(*volume) = VOL_MAX;

	if (rsnd_flags_has(mix, ONCE_KCTRL_INITIALIZED))
		return ret;

	/* Ramp */
	ret = rsnd_kctrl_new_s(mod, io, rtd,
			       "MIX Ramp Switch",
			       rsnd_kctrl_accept_anytime,
			       rsnd_mix_volume_update,
			       &mix->ren, 1);
	if (ret < 0)
		return ret;

	ret = rsnd_kctrl_new_e(mod, io, rtd,
			       "MIX Ramp Up Rate",
			       rsnd_kctrl_accept_anytime,
			       rsnd_mix_volume_update,
			       &mix->rup,
			       volume_ramp_rate,
			       VOLUME_RAMP_MAX_MIX);
	if (ret < 0)
		return ret;

	ret = rsnd_kctrl_new_e(mod, io, rtd,
			       "MIX Ramp Down Rate",
			       rsnd_kctrl_accept_anytime,
			       rsnd_mix_volume_update,
			       &mix->rdw,
			       volume_ramp_rate,
			       VOLUME_RAMP_MAX_MIX);

	rsnd_flags_set(mix, ONCE_KCTRL_INITIALIZED);

	return ret;
}

static struct rsnd_mod_ops rsnd_mix_ops = {
	.name		= MIX_NAME,
	.probe		= rsnd_mix_probe_,
	.init		= rsnd_mix_init,
	.quit		= rsnd_mix_quit,
	.pcm_new	= rsnd_mix_pcm_new,
};

struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id)
{
	if (WARN_ON(id < 0 || id >= rsnd_mix_nr(priv)))
		id = 0;

	return rsnd_mod_get(rsnd_mix_get(priv, id));
}

int rsnd_mix_probe(struct rsnd_priv *priv)
{
	struct device_node *node;
	struct device_node *np;
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_mix *mix;
	struct clk *clk;
	char name[MIX_NAME_SIZE];
	int i, nr, ret;

	/* This driver doesn't support Gen1 at this point */
	if (rsnd_is_gen1(priv))
		return 0;

	node = rsnd_mix_of_node(priv);
	if (!node)
		return 0; /* not used is not error */

	nr = of_get_child_count(node);
	if (!nr) {
		ret = -EINVAL;
		goto rsnd_mix_probe_done;
	}

	mix	= devm_kcalloc(dev, nr, sizeof(*mix), GFP_KERNEL);
	if (!mix) {
		ret = -ENOMEM;
		goto rsnd_mix_probe_done;
	}

	priv->mix_nr	= nr;
	priv->mix	= mix;

	i = 0;
	ret = 0;
	for_each_child_of_node(node, np) {
		mix = rsnd_mix_get(priv, i);

		snprintf(name, MIX_NAME_SIZE, "%s.%d",
			 MIX_NAME, i);

		clk = devm_clk_get(dev, name);
		if (IS_ERR(clk)) {
			ret = PTR_ERR(clk);
			of_node_put(np);
			goto rsnd_mix_probe_done;
		}

		ret = rsnd_mod_init(priv, rsnd_mod_get(mix), &rsnd_mix_ops,
				    clk, rsnd_mod_get_status, RSND_MOD_MIX, i);
		if (ret) {
			of_node_put(np);
			goto rsnd_mix_probe_done;
		}

		i++;
	}

rsnd_mix_probe_done:
	of_node_put(node);

	return ret;
}

void rsnd_mix_remove(struct rsnd_priv *priv)
{
	struct rsnd_mix *mix;
	int i;

	for_each_rsnd_mix(mix, priv, i) {
		rsnd_mod_quit(rsnd_mod_get(mix));
	}
}