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
|
/*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Ola Lilja <ola.o.lilja@stericsson.com>
* for ST-Ericsson.
*
* License terms:
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <sound/soc.h>
#include "../codecs/av8100_audio.h"
#include "ux500_av8100.h"
#include "ux500_msp_dai.h"
static const char *stream_str(struct snd_pcm_substream *substream)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return "Playback";
else
return "Capture";
}
static int ux500_av8100_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int channels = params_channels(params);
unsigned int tx_mask, fmt;
enum hdmi_channel_allocation hdmi_ca;
enum hdmi_audio_channel_count hdmi_cc;
struct hdmi_audio_settings as;
int ret;
pr_debug("%s: Enter (%s).\n", __func__, stream_str(substream));
pr_debug("%s: substream->pcm->name = %s.\n", __func__, substream->pcm->name);
pr_debug("%s: substream->pcm->id = %s.\n", __func__, substream->pcm->id);
pr_debug("%s: substream->name = %s.\n", __func__, substream->name);
pr_debug("%s: substream->number = %d.\n", __func__, substream->number);
pr_debug("%s: channels = %d.\n", __func__, channels);
pr_debug("%s: DAI-index (Codec): %d\n", __func__, codec_dai->id);
pr_debug("%s: DAI-index (Platform): %d\n", __func__, cpu_dai->id);
switch (channels) {
case 1:
hdmi_cc = AV8100_CODEC_CC_2CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR; /* Stereo-setup */
tx_mask = AV8100_CODEC_MASK_MONO;
break;
case 2:
hdmi_cc = AV8100_CODEC_CC_2CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR; /* Stereo */
tx_mask = AV8100_CODEC_MASK_STEREO;
break;
case 3:
hdmi_cc = AV8100_CODEC_CC_6CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR_LFE_FC_RL_RR; /* 5.1-setup */
tx_mask = AV8100_CODEC_MASK_2DOT1;
break;
case 4:
hdmi_cc = AV8100_CODEC_CC_6CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR_LFE_FC_RL_RR; /* 5.1-setup */
tx_mask = AV8100_CODEC_MASK_QUAD;
break;
case 5:
hdmi_cc = AV8100_CODEC_CC_6CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR_LFE_FC_RL_RR; /* 5.1-setup */
tx_mask = AV8100_CODEC_MASK_5DOT0;
break;
case 6:
hdmi_cc = AV8100_CODEC_CC_6CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR_LFE_FC_RL_RR; /* 5.1 */
tx_mask = AV8100_CODEC_MASK_5DOT1;
break;
case 7:
hdmi_cc = AV8100_CODEC_CC_8CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR_LFE_FC_RL_RR_RLC_RRC; /* 7.1 */
tx_mask = AV8100_CODEC_MASK_7DOT0;
break;
case 8:
hdmi_cc = AV8100_CODEC_CC_8CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR_LFE_FC_RL_RR_RLC_RRC; /* 7.1 */
tx_mask = AV8100_CODEC_MASK_7DOT1;
break;
default:
pr_err("%s: Unsupported number of channels (channels = %d)!\n",
__func__,
channels);
return -EINVAL;
}
/* Change HDMI audio-settings for codec-DAI. */
pr_debug("%s: Change HDMI audio-settings for codec-DAI.\n", __func__);
as.audio_channel_count = hdmi_cc;
as.sampling_frequency = AV8100_CODEC_SF_48KHZ;
as.sample_size = AV8100_CODEC_SS_16BIT;
as.channel_allocation = hdmi_ca;
as.level_shift_value = AV8100_CODEC_LSV_0DB;
as.downmix_inhibit = false;
ret = av8100_audio_change_hdmi_audio_settings(codec_dai, &as);
if (ret < 0) {
pr_err("%s: Unable to change HDMI audio-settings for codec-DAI "
"(av8100_codec_change_hdmi_audio_settings returned %d)!\n",
__func__,
ret);
return ret;
}
/* Set format for codec-DAI */
fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM;
pr_debug("%s: Setting format for codec-DAI (fmt = %d).\n",
__func__,
fmt);
ret = snd_soc_dai_set_fmt(codec_dai, fmt);
if (ret < 0) {
pr_err("%s: Unable to set format for codec-DAI "
"(snd_soc_dai_set_tdm_slot returned %d)!\n",
__func__,
ret);
return ret;
}
/* Set TDM-slot for CPU-DAI */
pr_debug("%s: Setting TDM-slot for codec-DAI (tx_mask = %d).\n",
__func__,
tx_mask);
ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, 0, 16, 16);
if (ret < 0) {
pr_err("%s: Unable to set TDM-slot for codec-DAI "
"(snd_soc_dai_set_tdm_slot returned %d)!\n",
__func__,
ret);
return ret;
}
/* Set format for CPU-DAI */
fmt = SND_SOC_DAIFMT_DSP_A |
SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_NB_IF;
pr_debug("%s: Setting DAI-format for Ux500-platform (fmt = %d).\n",
__func__,
fmt);
ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
if (ret < 0) {
pr_err("%s: Unable to set DAI-format for Ux500-platform "
"(snd_soc_dai_set_fmt returned %d).\n",
__func__,
ret);
return ret;
}
ux500_msp_dai_set_data_delay(cpu_dai, MSP_DELAY_1);
return ret;
}
struct snd_soc_ops ux500_av8100_ops[] = {
{
.hw_params = ux500_av8100_hw_params,
}
};
|
