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
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* This file defines data structures and functions used in Machine
* Driver for Intel platforms with Cirrus Logic Codecs.
*
* Copyright 2022 Intel Corporation.
*/
#include <linux/module.h>
#include <sound/sof.h>
#include "../../codecs/cs35l41.h"
#include "sof_cirrus_common.h"
#define CS35L41_HID "CSC3541"
#define CS35L41_MAX_AMPS 4
/*
* Cirrus Logic CS35L41/CS35L53
*/
static const struct snd_kcontrol_new cs35l41_kcontrols[] = {
SOC_DAPM_PIN_SWITCH("WL Spk"),
SOC_DAPM_PIN_SWITCH("WR Spk"),
SOC_DAPM_PIN_SWITCH("TL Spk"),
SOC_DAPM_PIN_SWITCH("TR Spk"),
};
static const struct snd_soc_dapm_widget cs35l41_dapm_widgets[] = {
SND_SOC_DAPM_SPK("WL Spk", NULL),
SND_SOC_DAPM_SPK("WR Spk", NULL),
SND_SOC_DAPM_SPK("TL Spk", NULL),
SND_SOC_DAPM_SPK("TR Spk", NULL),
};
static const struct snd_soc_dapm_route cs35l41_dapm_routes[] = {
/* speaker */
{"WL Spk", NULL, "WL SPK"},
{"WR Spk", NULL, "WR SPK"},
{"TL Spk", NULL, "TL SPK"},
{"TR Spk", NULL, "TR SPK"},
};
static struct snd_soc_dai_link_component cs35l41_components[CS35L41_MAX_AMPS];
/*
* Mapping between ACPI instance id and speaker position.
*/
static struct snd_soc_codec_conf cs35l41_codec_conf[CS35L41_MAX_AMPS];
static int cs35l41_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
int ret;
ret = snd_soc_dapm_new_controls(&card->dapm, cs35l41_dapm_widgets,
ARRAY_SIZE(cs35l41_dapm_widgets));
if (ret) {
dev_err(rtd->dev, "fail to add dapm controls, ret %d\n", ret);
return ret;
}
ret = snd_soc_add_card_controls(card, cs35l41_kcontrols,
ARRAY_SIZE(cs35l41_kcontrols));
if (ret) {
dev_err(rtd->dev, "fail to add card controls, ret %d\n", ret);
return ret;
}
ret = snd_soc_dapm_add_routes(&card->dapm, cs35l41_dapm_routes,
ARRAY_SIZE(cs35l41_dapm_routes));
if (ret)
dev_err(rtd->dev, "fail to add dapm routes, ret %d\n", ret);
return ret;
}
/*
* Channel map:
*
* TL/WL: ASPRX1 on slot 0, ASPRX2 on slot 1 (default)
* TR/WR: ASPRX1 on slot 1, ASPRX2 on slot 0
*/
static const struct {
unsigned int rx[2];
} cs35l41_channel_map[] = {
{.rx = {0, 1}}, /* WL */
{.rx = {1, 0}}, /* WR */
{.rx = {0, 1}}, /* TL */
{.rx = {1, 0}}, /* TR */
};
static int cs35l41_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai;
int clk_freq, i, ret;
clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */
if (clk_freq <= 0) {
dev_err(rtd->dev, "fail to get bclk freq, ret %d\n", clk_freq);
return -EINVAL;
}
for_each_rtd_codec_dais(rtd, i, codec_dai) {
/* call dai driver's set_sysclk() callback */
ret = snd_soc_dai_set_sysclk(codec_dai, CS35L41_CLKID_SCLK,
clk_freq, SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
ret);
return ret;
}
/* call component driver's set_sysclk() callback */
ret = snd_soc_component_set_sysclk(codec_dai->component,
CS35L41_CLKID_SCLK, 0,
clk_freq, SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->dev, "fail to set component sysclk, ret %d\n",
ret);
return ret;
}
/* setup channel map */
ret = snd_soc_dai_set_channel_map(codec_dai, 0, NULL,
ARRAY_SIZE(cs35l41_channel_map[i].rx),
(unsigned int *)cs35l41_channel_map[i].rx);
if (ret < 0) {
dev_err(codec_dai->dev, "fail to set channel map, ret %d\n",
ret);
return ret;
}
}
return 0;
}
static const struct snd_soc_ops cs35l41_ops = {
.hw_params = cs35l41_hw_params,
};
static const char * const cs35l41_name_prefixes[] = { "WL", "WR", "TL", "TR" };
/*
* Expected UIDs are integers (stored as strings).
* UID Mapping is fixed:
* UID 0x0 -> WL
* UID 0x1 -> WR
* UID 0x2 -> TL
* UID 0x3 -> TR
* Note: If there are less than 4 Amps, UIDs still map to WL/WR/TL/TR. Dynamic code will only create
* dai links for UIDs which exist, and ignore non-existant ones. Only 2 or 4 amps are expected.
* Return number of codecs found.
*/
static int cs35l41_compute_codec_conf(void)
{
static const char * const uid_strings[] = { "0", "1", "2", "3" };
unsigned int uid, sz = 0;
struct acpi_device *adev;
struct device *physdev;
for (uid = 0; uid < CS35L41_MAX_AMPS; uid++) {
adev = acpi_dev_get_first_match_dev(CS35L41_HID, uid_strings[uid], -1);
if (!adev) {
pr_devel("Cannot find match for HID %s UID %u (%s)\n", CS35L41_HID, uid,
cs35l41_name_prefixes[uid]);
continue;
}
physdev = get_device(acpi_get_first_physical_node(adev));
acpi_dev_put(adev);
if (!physdev) {
pr_devel("Cannot find physical node for HID %s UID %u (%s)\n", CS35L41_HID,
uid, cs35l41_name_prefixes[uid]);
return 0;
}
cs35l41_components[sz].name = dev_name(physdev);
cs35l41_components[sz].dai_name = CS35L41_CODEC_DAI;
cs35l41_codec_conf[sz].dlc.name = dev_name(physdev);
cs35l41_codec_conf[sz].name_prefix = cs35l41_name_prefixes[uid];
sz++;
}
if (sz != 2 && sz != 4)
pr_warn("Invalid number of cs35l41 amps found: %d, expected 2 or 4\n", sz);
return sz;
}
void cs35l41_set_dai_link(struct snd_soc_dai_link *link)
{
link->num_codecs = cs35l41_compute_codec_conf();
link->codecs = cs35l41_components;
link->init = cs35l41_init;
link->ops = &cs35l41_ops;
}
EXPORT_SYMBOL_NS(cs35l41_set_dai_link, SND_SOC_INTEL_SOF_CIRRUS_COMMON);
void cs35l41_set_codec_conf(struct snd_soc_card *card)
{
card->codec_conf = cs35l41_codec_conf;
card->num_configs = ARRAY_SIZE(cs35l41_codec_conf);
}
EXPORT_SYMBOL_NS(cs35l41_set_codec_conf, SND_SOC_INTEL_SOF_CIRRUS_COMMON);
MODULE_DESCRIPTION("ASoC Intel SOF Cirrus Logic helpers");
MODULE_LICENSE("GPL");
|
