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
|
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
//
// Copyright (c) 2018 BayLibre, SAS.
// Author: Jerome Brunet <jbrunet@baylibre.com>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include "axg-tdm-formatter.h"
#define TDMIN_CTRL 0x00
#define TDMIN_CTRL_ENABLE BIT(31)
#define TDMIN_CTRL_I2S_MODE BIT(30)
#define TDMIN_CTRL_RST_OUT BIT(29)
#define TDMIN_CTRL_RST_IN BIT(28)
#define TDMIN_CTRL_WS_INV BIT(25)
#define TDMIN_CTRL_SEL_SHIFT 20
#define TDMIN_CTRL_IN_BIT_SKEW_MASK GENMASK(18, 16)
#define TDMIN_CTRL_IN_BIT_SKEW(x) ((x) << 16)
#define TDMIN_CTRL_LSB_FIRST BIT(5)
#define TDMIN_CTRL_BITNUM_MASK GENMASK(4, 0)
#define TDMIN_CTRL_BITNUM(x) ((x) << 0)
#define TDMIN_SWAP 0x04
#define TDMIN_MASK0 0x08
#define TDMIN_MASK1 0x0c
#define TDMIN_MASK2 0x10
#define TDMIN_MASK3 0x14
#define TDMIN_STAT 0x18
#define TDMIN_MUTE_VAL 0x1c
#define TDMIN_MUTE0 0x20
#define TDMIN_MUTE1 0x24
#define TDMIN_MUTE2 0x28
#define TDMIN_MUTE3 0x2c
static const struct regmap_config axg_tdmin_regmap_cfg = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
.max_register = TDMIN_MUTE3,
};
static const char * const axg_tdmin_sel_texts[] = {
"IN 0", "IN 1", "IN 2", "IN 3", "IN 4", "IN 5", "IN 6", "IN 7",
"IN 8", "IN 9", "IN 10", "IN 11", "IN 12", "IN 13", "IN 14", "IN 15",
};
/* Change to special mux control to reset dapm */
static SOC_ENUM_SINGLE_DECL(axg_tdmin_sel_enum, TDMIN_CTRL,
TDMIN_CTRL_SEL_SHIFT, axg_tdmin_sel_texts);
static const struct snd_kcontrol_new axg_tdmin_in_mux =
SOC_DAPM_ENUM("Input Source", axg_tdmin_sel_enum);
static struct snd_soc_dai *
axg_tdmin_get_be(struct snd_soc_dapm_widget *w)
{
struct snd_soc_dapm_path *p = NULL;
struct snd_soc_dai *be;
snd_soc_dapm_widget_for_each_source_path(w, p) {
if (!p->connect)
continue;
if (p->source->id == snd_soc_dapm_dai_out)
return (struct snd_soc_dai *)p->source->priv;
be = axg_tdmin_get_be(p->source);
if (be)
return be;
}
return NULL;
}
static struct axg_tdm_stream *
axg_tdmin_get_tdm_stream(struct snd_soc_dapm_widget *w)
{
struct snd_soc_dai *be = axg_tdmin_get_be(w);
if (!be)
return NULL;
return be->capture_dma_data;
}
static void axg_tdmin_enable(struct regmap *map)
{
/* Apply both reset */
regmap_update_bits(map, TDMIN_CTRL,
TDMIN_CTRL_RST_OUT | TDMIN_CTRL_RST_IN, 0);
/* Clear out reset before in reset */
regmap_update_bits(map, TDMIN_CTRL,
TDMIN_CTRL_RST_OUT, TDMIN_CTRL_RST_OUT);
regmap_update_bits(map, TDMIN_CTRL,
TDMIN_CTRL_RST_IN, TDMIN_CTRL_RST_IN);
/* Actually enable tdmin */
regmap_update_bits(map, TDMIN_CTRL,
TDMIN_CTRL_ENABLE, TDMIN_CTRL_ENABLE);
}
static void axg_tdmin_disable(struct regmap *map)
{
regmap_update_bits(map, TDMIN_CTRL, TDMIN_CTRL_ENABLE, 0);
}
static int axg_tdmin_prepare(struct regmap *map,
const struct axg_tdm_formatter_hw *quirks,
struct axg_tdm_stream *ts)
{
unsigned int val, skew = quirks->skew_offset;
/* Set stream skew */
switch (ts->iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_DSP_A:
skew += 1;
break;
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_DSP_B:
break;
default:
pr_err("Unsupported format: %u\n",
ts->iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK);
return -EINVAL;
}
val = TDMIN_CTRL_IN_BIT_SKEW(skew);
/* Set stream format mode */
switch (ts->iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_RIGHT_J:
val |= TDMIN_CTRL_I2S_MODE;
break;
}
/* If the sample clock is inverted, invert it back for the formatter */
if (axg_tdm_lrclk_invert(ts->iface->fmt))
val |= TDMIN_CTRL_WS_INV;
/* Set the slot width */
val |= TDMIN_CTRL_BITNUM(ts->iface->slot_width - 1);
/*
* The following also reset LSB_FIRST which result in the formatter
* placing the first bit received at bit 31
*/
regmap_update_bits(map, TDMIN_CTRL,
(TDMIN_CTRL_IN_BIT_SKEW_MASK | TDMIN_CTRL_WS_INV |
TDMIN_CTRL_I2S_MODE | TDMIN_CTRL_LSB_FIRST |
TDMIN_CTRL_BITNUM_MASK), val);
/* Set static swap mask configuration */
regmap_write(map, TDMIN_SWAP, 0x76543210);
return axg_tdm_formatter_set_channel_masks(map, ts, TDMIN_MASK0);
}
static const struct snd_soc_dapm_widget axg_tdmin_dapm_widgets[] = {
SND_SOC_DAPM_AIF_IN("IN 0", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 1", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 2", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 3", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 4", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 5", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 6", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 7", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 8", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 9", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 10", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 11", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 12", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 13", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 14", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("IN 15", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_MUX("SRC SEL", SND_SOC_NOPM, 0, 0, &axg_tdmin_in_mux),
SND_SOC_DAPM_PGA_E("DEC", SND_SOC_NOPM, 0, 0, NULL, 0,
axg_tdm_formatter_event,
(SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD)),
SND_SOC_DAPM_AIF_OUT("OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
};
static const struct snd_soc_dapm_route axg_tdmin_dapm_routes[] = {
{ "SRC SEL", "IN 0", "IN 0" },
{ "SRC SEL", "IN 1", "IN 1" },
{ "SRC SEL", "IN 2", "IN 2" },
{ "SRC SEL", "IN 3", "IN 3" },
{ "SRC SEL", "IN 4", "IN 4" },
{ "SRC SEL", "IN 5", "IN 5" },
{ "SRC SEL", "IN 6", "IN 6" },
{ "SRC SEL", "IN 7", "IN 7" },
{ "SRC SEL", "IN 8", "IN 8" },
{ "SRC SEL", "IN 9", "IN 9" },
{ "SRC SEL", "IN 10", "IN 10" },
{ "SRC SEL", "IN 11", "IN 11" },
{ "SRC SEL", "IN 12", "IN 12" },
{ "SRC SEL", "IN 13", "IN 13" },
{ "SRC SEL", "IN 14", "IN 14" },
{ "SRC SEL", "IN 15", "IN 15" },
{ "DEC", NULL, "SRC SEL" },
{ "OUT", NULL, "DEC" },
};
static const struct snd_soc_component_driver axg_tdmin_component_drv = {
.dapm_widgets = axg_tdmin_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(axg_tdmin_dapm_widgets),
.dapm_routes = axg_tdmin_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(axg_tdmin_dapm_routes),
};
static const struct axg_tdm_formatter_ops axg_tdmin_ops = {
.get_stream = axg_tdmin_get_tdm_stream,
.prepare = axg_tdmin_prepare,
.enable = axg_tdmin_enable,
.disable = axg_tdmin_disable,
};
static const struct axg_tdm_formatter_driver axg_tdmin_drv = {
.component_drv = &axg_tdmin_component_drv,
.regmap_cfg = &axg_tdmin_regmap_cfg,
.ops = &axg_tdmin_ops,
.quirks = &(const struct axg_tdm_formatter_hw) {
.skew_offset = 2,
},
};
static const struct axg_tdm_formatter_driver g12a_tdmin_drv = {
.component_drv = &axg_tdmin_component_drv,
.regmap_cfg = &axg_tdmin_regmap_cfg,
.ops = &axg_tdmin_ops,
.quirks = &(const struct axg_tdm_formatter_hw) {
.skew_offset = 3,
},
};
static const struct of_device_id axg_tdmin_of_match[] = {
{
.compatible = "amlogic,axg-tdmin",
.data = &axg_tdmin_drv,
}, {
.compatible = "amlogic,g12a-tdmin",
.data = &g12a_tdmin_drv,
}, {
.compatible = "amlogic,sm1-tdmin",
.data = &g12a_tdmin_drv,
}, {}
};
MODULE_DEVICE_TABLE(of, axg_tdmin_of_match);
static struct platform_driver axg_tdmin_pdrv = {
.probe = axg_tdm_formatter_probe,
.driver = {
.name = "axg-tdmin",
.of_match_table = axg_tdmin_of_match,
},
};
module_platform_driver(axg_tdmin_pdrv);
MODULE_DESCRIPTION("Amlogic AXG TDM input formatter driver");
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
MODULE_LICENSE("GPL v2");
|
