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
|
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2019 BayLibre, SAS.
// Author: Jerome Brunet <jbrunet@baylibre.com>
#include <linux/bitfield.h>
#include <linux/clk.h>
#include <linux/module.h>
#include <sound/pcm_params.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
#include "meson-codec-glue.h"
#define G12A_TOHDMITX_DRV_NAME "g12a-tohdmitx"
#define TOHDMITX_CTRL0 0x0
#define CTRL0_ENABLE_SHIFT 31
#define CTRL0_I2S_DAT_SEL_SHIFT 12
#define CTRL0_I2S_DAT_SEL (0x3 << CTRL0_I2S_DAT_SEL_SHIFT)
#define CTRL0_I2S_LRCLK_SEL GENMASK(9, 8)
#define CTRL0_I2S_BLK_CAP_INV BIT(7)
#define CTRL0_I2S_BCLK_O_INV BIT(6)
#define CTRL0_I2S_BCLK_SEL GENMASK(5, 4)
#define CTRL0_SPDIF_CLK_CAP_INV BIT(3)
#define CTRL0_SPDIF_CLK_O_INV BIT(2)
#define CTRL0_SPDIF_SEL_SHIFT 1
#define CTRL0_SPDIF_SEL (0x1 << CTRL0_SPDIF_SEL_SHIFT)
#define CTRL0_SPDIF_CLK_SEL BIT(0)
static const char * const g12a_tohdmitx_i2s_mux_texts[] = {
"I2S A", "I2S B", "I2S C",
};
static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_dapm_kcontrol_component(kcontrol);
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int mux, changed;
if (ucontrol->value.enumerated.item[0] >= e->items)
return -EINVAL;
mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
changed = snd_soc_component_test_bits(component, e->reg,
CTRL0_I2S_DAT_SEL,
FIELD_PREP(CTRL0_I2S_DAT_SEL,
mux));
if (!changed)
return 0;
/* Force disconnect of the mux while updating */
snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
snd_soc_component_update_bits(component, e->reg,
CTRL0_I2S_DAT_SEL |
CTRL0_I2S_LRCLK_SEL |
CTRL0_I2S_BCLK_SEL,
FIELD_PREP(CTRL0_I2S_DAT_SEL, mux) |
FIELD_PREP(CTRL0_I2S_LRCLK_SEL, mux) |
FIELD_PREP(CTRL0_I2S_BCLK_SEL, mux));
snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
return 1;
}
static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_i2s_mux_enum, TOHDMITX_CTRL0,
CTRL0_I2S_DAT_SEL_SHIFT,
g12a_tohdmitx_i2s_mux_texts);
static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux =
SOC_DAPM_ENUM_EXT("I2S Source", g12a_tohdmitx_i2s_mux_enum,
snd_soc_dapm_get_enum_double,
g12a_tohdmitx_i2s_mux_put_enum);
static const char * const g12a_tohdmitx_spdif_mux_texts[] = {
"SPDIF A", "SPDIF B",
};
static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_dapm_kcontrol_component(kcontrol);
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int mux, changed;
if (ucontrol->value.enumerated.item[0] >= e->items)
return -EINVAL;
mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
changed = snd_soc_component_test_bits(component, TOHDMITX_CTRL0,
CTRL0_SPDIF_SEL,
FIELD_PREP(CTRL0_SPDIF_SEL, mux));
if (!changed)
return 0;
/* Force disconnect of the mux while updating */
snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
snd_soc_component_update_bits(component, TOHDMITX_CTRL0,
CTRL0_SPDIF_SEL |
CTRL0_SPDIF_CLK_SEL,
FIELD_PREP(CTRL0_SPDIF_SEL, mux) |
FIELD_PREP(CTRL0_SPDIF_CLK_SEL, mux));
snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
return 1;
}
static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_spdif_mux_enum, TOHDMITX_CTRL0,
CTRL0_SPDIF_SEL_SHIFT,
g12a_tohdmitx_spdif_mux_texts);
static const struct snd_kcontrol_new g12a_tohdmitx_spdif_mux =
SOC_DAPM_ENUM_EXT("SPDIF Source", g12a_tohdmitx_spdif_mux_enum,
snd_soc_dapm_get_enum_double,
g12a_tohdmitx_spdif_mux_put_enum);
static const struct snd_kcontrol_new g12a_tohdmitx_out_enable =
SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOHDMITX_CTRL0,
CTRL0_ENABLE_SHIFT, 1, 0);
static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = {
SND_SOC_DAPM_MUX("I2S SRC", SND_SOC_NOPM, 0, 0,
&g12a_tohdmitx_i2s_mux),
SND_SOC_DAPM_SWITCH("I2S OUT EN", SND_SOC_NOPM, 0, 0,
&g12a_tohdmitx_out_enable),
SND_SOC_DAPM_MUX("SPDIF SRC", SND_SOC_NOPM, 0, 0,
&g12a_tohdmitx_spdif_mux),
SND_SOC_DAPM_SWITCH("SPDIF OUT EN", SND_SOC_NOPM, 0, 0,
&g12a_tohdmitx_out_enable),
};
static const struct snd_soc_dai_ops g12a_tohdmitx_input_ops = {
.hw_params = meson_codec_glue_input_hw_params,
.set_fmt = meson_codec_glue_input_set_fmt,
};
static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = {
.startup = meson_codec_glue_output_startup,
};
#define TOHDMITX_SPDIF_FORMATS \
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE)
#define TOHDMITX_I2S_FORMATS \
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \
SNDRV_PCM_FMTBIT_S32_LE)
#define TOHDMITX_STREAM(xname, xsuffix, xfmt, xchmax) \
{ \
.stream_name = xname " " xsuffix, \
.channels_min = 1, \
.channels_max = (xchmax), \
.rate_min = 8000, \
.rate_max = 192000, \
.formats = (xfmt), \
}
#define TOHDMITX_IN(xname, xid, xfmt, xchmax) { \
.name = xname, \
.id = (xid), \
.playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \
.ops = &g12a_tohdmitx_input_ops, \
.probe = meson_codec_glue_input_dai_probe, \
.remove = meson_codec_glue_input_dai_remove, \
}
#define TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \
.name = xname, \
.id = (xid), \
.capture = TOHDMITX_STREAM(xname, "Capture", xfmt, xchmax), \
.ops = &g12a_tohdmitx_output_ops, \
}
static struct snd_soc_dai_driver g12a_tohdmitx_dai_drv[] = {
TOHDMITX_IN("I2S IN A", TOHDMITX_I2S_IN_A,
TOHDMITX_I2S_FORMATS, 8),
TOHDMITX_IN("I2S IN B", TOHDMITX_I2S_IN_B,
TOHDMITX_I2S_FORMATS, 8),
TOHDMITX_IN("I2S IN C", TOHDMITX_I2S_IN_C,
TOHDMITX_I2S_FORMATS, 8),
TOHDMITX_OUT("I2S OUT", TOHDMITX_I2S_OUT,
TOHDMITX_I2S_FORMATS, 8),
TOHDMITX_IN("SPDIF IN A", TOHDMITX_SPDIF_IN_A,
TOHDMITX_SPDIF_FORMATS, 2),
TOHDMITX_IN("SPDIF IN B", TOHDMITX_SPDIF_IN_B,
TOHDMITX_SPDIF_FORMATS, 2),
TOHDMITX_OUT("SPDIF OUT", TOHDMITX_SPDIF_OUT,
TOHDMITX_SPDIF_FORMATS, 2),
};
static int g12a_tohdmi_component_probe(struct snd_soc_component *c)
{
/* Initialize the static clock parameters */
return snd_soc_component_write(c, TOHDMITX_CTRL0,
CTRL0_I2S_BLK_CAP_INV | CTRL0_SPDIF_CLK_CAP_INV);
}
static const struct snd_soc_dapm_route g12a_tohdmitx_routes[] = {
{ "I2S SRC", "I2S A", "I2S IN A Playback" },
{ "I2S SRC", "I2S B", "I2S IN B Playback" },
{ "I2S SRC", "I2S C", "I2S IN C Playback" },
{ "I2S OUT EN", "Switch", "I2S SRC" },
{ "I2S OUT Capture", NULL, "I2S OUT EN" },
{ "SPDIF SRC", "SPDIF A", "SPDIF IN A Playback" },
{ "SPDIF SRC", "SPDIF B", "SPDIF IN B Playback" },
{ "SPDIF OUT EN", "Switch", "SPDIF SRC" },
{ "SPDIF OUT Capture", NULL, "SPDIF OUT EN" },
};
static const struct snd_soc_component_driver g12a_tohdmitx_component_drv = {
.probe = g12a_tohdmi_component_probe,
.dapm_widgets = g12a_tohdmitx_widgets,
.num_dapm_widgets = ARRAY_SIZE(g12a_tohdmitx_widgets),
.dapm_routes = g12a_tohdmitx_routes,
.num_dapm_routes = ARRAY_SIZE(g12a_tohdmitx_routes),
.endianness = 1,
.non_legacy_dai_naming = 1,
};
static const struct regmap_config g12a_tohdmitx_regmap_cfg = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
};
static const struct of_device_id g12a_tohdmitx_of_match[] = {
{ .compatible = "amlogic,g12a-tohdmitx", },
{}
};
MODULE_DEVICE_TABLE(of, g12a_tohdmitx_of_match);
static int g12a_tohdmitx_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
void __iomem *regs;
struct regmap *map;
int ret;
ret = device_reset(dev);
if (ret)
return ret;
regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);
map = devm_regmap_init_mmio(dev, regs, &g12a_tohdmitx_regmap_cfg);
if (IS_ERR(map)) {
dev_err(dev, "failed to init regmap: %ld\n",
PTR_ERR(map));
return PTR_ERR(map);
}
return devm_snd_soc_register_component(dev,
&g12a_tohdmitx_component_drv, g12a_tohdmitx_dai_drv,
ARRAY_SIZE(g12a_tohdmitx_dai_drv));
}
static struct platform_driver g12a_tohdmitx_pdrv = {
.driver = {
.name = G12A_TOHDMITX_DRV_NAME,
.of_match_table = g12a_tohdmitx_of_match,
},
.probe = g12a_tohdmitx_probe,
};
module_platform_driver(g12a_tohdmitx_pdrv);
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
MODULE_DESCRIPTION("Amlogic G12a To HDMI Tx Control Codec Driver");
MODULE_LICENSE("GPL v2");
|
