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
|
// SPDX-License-Identifier: GPL-2.0
//
// PCM3060 codec driver
//
// Copyright (C) 2018 Kirill Marinushkin <kmarinushkin@birdec.tech>
#include <linux/module.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "pcm3060.h"
/* dai */
static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
struct snd_soc_component *comp = dai->component;
struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
unsigned int reg;
unsigned int val;
if (dir != SND_SOC_CLOCK_IN) {
dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir);
return -EINVAL;
}
switch (clk_id) {
case PCM3060_CLK_DEF:
val = 0;
break;
case PCM3060_CLK1:
val = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG_CSEL : 0);
break;
case PCM3060_CLK2:
val = (dai->id == PCM3060_DAI_ID_DAC ? 0 : PCM3060_REG_CSEL);
break;
default:
dev_err(comp->dev, "unsupported sysclock id: %d\n", clk_id);
return -EINVAL;
}
if (dai->id == PCM3060_DAI_ID_DAC)
reg = PCM3060_REG67;
else
reg = PCM3060_REG72;
regmap_update_bits(priv->regmap, reg, PCM3060_REG_CSEL, val);
priv->dai[dai->id].sclk_freq = freq;
return 0;
}
static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *comp = dai->component;
struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
unsigned int reg;
unsigned int val;
if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt);
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
priv->dai[dai->id].is_master = true;
break;
case SND_SOC_DAIFMT_CBS_CFS:
priv->dai[dai->id].is_master = false;
break;
default:
dev_err(comp->dev, "unsupported DAI master mode: 0x%x\n", fmt);
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
val = PCM3060_REG_FMT_I2S;
break;
case SND_SOC_DAIFMT_RIGHT_J:
val = PCM3060_REG_FMT_RJ;
break;
case SND_SOC_DAIFMT_LEFT_J:
val = PCM3060_REG_FMT_LJ;
break;
default:
dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt);
return -EINVAL;
}
if (dai->id == PCM3060_DAI_ID_DAC)
reg = PCM3060_REG67;
else
reg = PCM3060_REG72;
regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val);
return 0;
}
static int pcm3060_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *comp = dai->component;
struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
unsigned int rate;
unsigned int ratio;
unsigned int reg;
unsigned int val;
if (!priv->dai[dai->id].is_master) {
val = PCM3060_REG_MS_S;
goto val_ready;
}
rate = params_rate(params);
if (!rate) {
dev_err(comp->dev, "rate is not configured\n");
return -EINVAL;
}
ratio = priv->dai[dai->id].sclk_freq / rate;
switch (ratio) {
case 768:
val = PCM3060_REG_MS_M768;
break;
case 512:
val = PCM3060_REG_MS_M512;
break;
case 384:
val = PCM3060_REG_MS_M384;
break;
case 256:
val = PCM3060_REG_MS_M256;
break;
case 192:
val = PCM3060_REG_MS_M192;
break;
case 128:
val = PCM3060_REG_MS_M128;
break;
default:
dev_err(comp->dev, "unsupported ratio: %d\n", ratio);
return -EINVAL;
}
val_ready:
if (dai->id == PCM3060_DAI_ID_DAC)
reg = PCM3060_REG67;
else
reg = PCM3060_REG72;
regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val);
return 0;
}
static const struct snd_soc_dai_ops pcm3060_dai_ops = {
.set_sysclk = pcm3060_set_sysclk,
.set_fmt = pcm3060_set_fmt,
.hw_params = pcm3060_hw_params,
};
#define PCM3060_DAI_RATES_ADC (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | \
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
#define PCM3060_DAI_RATES_DAC (PCM3060_DAI_RATES_ADC | \
SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
static struct snd_soc_dai_driver pcm3060_dai[] = {
{
.name = "pcm3060-dac",
.id = PCM3060_DAI_ID_DAC,
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = PCM3060_DAI_RATES_DAC,
.formats = SNDRV_PCM_FMTBIT_S24_LE,
},
.ops = &pcm3060_dai_ops,
},
{
.name = "pcm3060-adc",
.id = PCM3060_DAI_ID_ADC,
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = PCM3060_DAI_RATES_ADC,
.formats = SNDRV_PCM_FMTBIT_S24_LE,
},
.ops = &pcm3060_dai_ops,
},
};
/* dapm */
static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1);
static const struct snd_kcontrol_new pcm3060_dapm_controls[] = {
SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume",
PCM3060_REG65, PCM3060_REG66, 0,
PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX,
0, pcm3060_dapm_tlv),
SOC_DOUBLE("Master Playback Switch", PCM3060_REG68,
PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1),
SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume",
PCM3060_REG70, PCM3060_REG71, 0,
PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX,
0, pcm3060_dapm_tlv),
SOC_DOUBLE("Master Capture Switch", PCM3060_REG73,
PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1),
};
static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC", "Playback", PCM3060_REG64,
PCM3060_REG_SHIFT_DAPSV, 1),
SND_SOC_DAPM_OUTPUT("OUTL"),
SND_SOC_DAPM_OUTPUT("OUTR"),
SND_SOC_DAPM_INPUT("INL"),
SND_SOC_DAPM_INPUT("INR"),
SND_SOC_DAPM_ADC("ADC", "Capture", PCM3060_REG64,
PCM3060_REG_SHIFT_ADPSV, 1),
};
static const struct snd_soc_dapm_route pcm3060_dapm_map[] = {
{ "OUTL", NULL, "DAC" },
{ "OUTR", NULL, "DAC" },
{ "ADC", NULL, "INL" },
{ "ADC", NULL, "INR" },
};
/* soc component */
static const struct snd_soc_component_driver pcm3060_soc_comp_driver = {
.controls = pcm3060_dapm_controls,
.num_controls = ARRAY_SIZE(pcm3060_dapm_controls),
.dapm_widgets = pcm3060_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets),
.dapm_routes = pcm3060_dapm_map,
.num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map),
};
/* regmap */
static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg)
{
return (reg >= PCM3060_REG64);
}
static bool pcm3060_reg_readable(struct device *dev, unsigned int reg)
{
return (reg >= PCM3060_REG64);
}
static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg)
{
/* PCM3060_REG64 is volatile */
return (reg == PCM3060_REG64);
}
static const struct reg_default pcm3060_reg_defaults[] = {
{ PCM3060_REG64, 0xF0 },
{ PCM3060_REG65, 0xFF },
{ PCM3060_REG66, 0xFF },
{ PCM3060_REG67, 0x00 },
{ PCM3060_REG68, 0x00 },
{ PCM3060_REG69, 0x00 },
{ PCM3060_REG70, 0xD7 },
{ PCM3060_REG71, 0xD7 },
{ PCM3060_REG72, 0x00 },
{ PCM3060_REG73, 0x00 },
};
const struct regmap_config pcm3060_regmap = {
.reg_bits = 8,
.val_bits = 8,
.writeable_reg = pcm3060_reg_writeable,
.readable_reg = pcm3060_reg_readable,
.volatile_reg = pcm3060_reg_volatile,
.max_register = PCM3060_REG73,
.reg_defaults = pcm3060_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults),
.cache_type = REGCACHE_RBTREE,
};
EXPORT_SYMBOL(pcm3060_regmap);
/* device */
static void pcm3060_parse_dt(const struct device_node *np,
struct pcm3060_priv *priv)
{
priv->out_se = of_property_read_bool(np, "ti,out-single-ended");
}
int pcm3060_probe(struct device *dev)
{
int rc;
struct pcm3060_priv *priv = dev_get_drvdata(dev);
/* soft reset */
rc = regmap_update_bits(priv->regmap, PCM3060_REG64,
PCM3060_REG_MRST, 0);
if (rc) {
dev_err(dev, "failed to reset component, rc=%d\n", rc);
return rc;
}
if (dev->of_node)
pcm3060_parse_dt(dev->of_node, priv);
if (priv->out_se)
regmap_update_bits(priv->regmap, PCM3060_REG64,
PCM3060_REG_SE, PCM3060_REG_SE);
rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,
pcm3060_dai,
ARRAY_SIZE(pcm3060_dai));
if (rc) {
dev_err(dev, "failed to register component, rc=%d\n", rc);
return rc;
}
return 0;
}
EXPORT_SYMBOL(pcm3060_probe);
MODULE_DESCRIPTION("PCM3060 codec driver");
MODULE_AUTHOR("Kirill Marinushkin <kmarinushkin@birdec.tech>");
MODULE_LICENSE("GPL v2");
|
