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
|
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018, Linaro Limited
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm.h>
#include "common.h"
#define SLIM_MAX_TX_PORTS 16
#define SLIM_MAX_RX_PORTS 16
#define WCD9335_DEFAULT_MCLK_RATE 9600000
static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
return 0;
}
static int msm_snd_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
int ret = 0;
ret = snd_soc_dai_get_channel_map(codec_dai,
&tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch);
if (ret != 0 && ret != -ENOTSUPP) {
pr_err("failed to get codec chan map, err:%d\n", ret);
goto end;
} else if (ret == -ENOTSUPP) {
return 0;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
rx_ch_cnt, rx_ch);
else
ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt, tx_ch,
0, NULL);
if (ret != 0 && ret != -ENOTSUPP)
pr_err("Failed to set cpu chan map, err:%d\n", ret);
else if (ret == -ENOTSUPP)
ret = 0;
end:
return ret;
}
static const struct snd_soc_ops apq8096_ops = {
.hw_params = msm_snd_hw_params,
};
static int apq8096_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
/*
* Codec SLIMBUS configuration
* RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13
* TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13
* TX14, TX15, TX16
*/
unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149,
150, 151, 152, 153, 154, 155, 156};
unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133,
134, 135, 136, 137, 138, 139,
140, 141, 142, 143};
snd_soc_dai_set_channel_map(codec_dai, ARRAY_SIZE(tx_ch),
tx_ch, ARRAY_SIZE(rx_ch), rx_ch);
snd_soc_dai_set_sysclk(codec_dai, 0, WCD9335_DEFAULT_MCLK_RATE,
SNDRV_PCM_STREAM_PLAYBACK);
return 0;
}
static void apq8096_add_be_ops(struct snd_soc_card *card)
{
struct snd_soc_dai_link *link;
int i;
for_each_card_prelinks(card, i, link) {
if (link->no_pcm == 1) {
link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
link->init = apq8096_init;
link->ops = &apq8096_ops;
}
}
}
static int apq8096_platform_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct device *dev = &pdev->dev;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
card->dev = dev;
card->owner = THIS_MODULE;
dev_set_drvdata(dev, card);
ret = qcom_snd_parse_of(card);
if (ret)
return ret;
apq8096_add_be_ops(card);
return devm_snd_soc_register_card(dev, card);
}
static const struct of_device_id msm_snd_apq8096_dt_match[] = {
{.compatible = "qcom,apq8096-sndcard"},
{}
};
MODULE_DEVICE_TABLE(of, msm_snd_apq8096_dt_match);
static struct platform_driver msm_snd_apq8096_driver = {
.probe = apq8096_platform_probe,
.driver = {
.name = "msm-snd-apq8096",
.of_match_table = msm_snd_apq8096_dt_match,
},
};
module_platform_driver(msm_snd_apq8096_driver);
MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
|
