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/*
* 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 <linux/io.h>
#include <sound/soc.h>
#include "ux500_pcm.h"
#include "ux500_msp_dai.h"
#include <linux/spi/spi.h>
#include <sound/initval.h>
#include "../codecs/av8100_audio.h"
static struct platform_device *ux500_av8100_platform_device;
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->dai->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
unsigned int tx_mask, fmt;
enum hdmi_channel_allocation hdmi_ca;
enum hdmi_audio_channel_count hdmi_cc;
struct hdmi_audio_settings as;
int channels = params_channels(params);
int ret = 0;
pr_debug("%s: Enter (TDM-mode, channels = %d, name = %s, number = %d).\n",
__func__,
channels,
substream->name,
substream->number);
pr_debug("%s: substream->pcm->name = %s.\n", __func__, substream->pcm->name);
pr_debug("%s: substream->pcm->id = %s.\n", __func__, substream->pcm->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 8:
hdmi_cc = AV8100_CODEC_CC_6CH;
hdmi_ca = AV8100_CODEC_CA_FL_FR_LFE_FC_RL_RR_FLC_FRC; /* 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_coding_type = AV8100_CODEC_CT_IEC60958_PCM;
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_codec_change_hdmi_audio_settings(substream, &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_B | 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_B |
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;
}
return ret;
}
struct snd_soc_dai_link ux500_av8100_dai_links[] = {
{
.name = "hdmi",
.stream_name = "hdmi",
.cpu_dai = &ux500_msp_dai[2],
.codec_dai = &av8100_codec_dai[0],
.init = NULL,
.ops = (struct snd_soc_ops[]) {
{
.hw_params = ux500_av8100_hw_params,
}
}
},
};
static struct snd_soc_card ux500_av8100 = {
.name = "hdmi",
.probe = NULL,
.dai_link = ux500_av8100_dai_links,
.num_links = ARRAY_SIZE(ux500_av8100_dai_links),
.platform = &ux500_soc_platform,
};
struct snd_soc_device ux500_av8100_drvdata = {
.card = &ux500_av8100,
.codec_dev = &soc_codec_dev_av8100,
};
static int __init ux500_av8100_soc_init(void)
{
int ret = 0;
pr_debug("%s: Enter.\n", __func__);
pr_info("%s: Card name: %s\n",
__func__,
ux500_av8100_drvdata.card->name);
pr_debug("%s: DAI-link 0, name: %s\n",
__func__,
ux500_av8100_drvdata.card->dai_link[0].name);
pr_debug("%s: DAI-link 0, stream_name: %s\n",
__func__,
ux500_av8100_drvdata.card->dai_link[0].stream_name);
pr_debug("%s: Allocate platform device (%s).\n",
__func__,
ux500_av8100_drvdata.card->name);
ux500_av8100_platform_device = platform_device_alloc("soc-audio", -1);
if (!ux500_av8100_platform_device)
return -ENOMEM;
pr_debug("%s: Set platform drvdata (%s).\n",
__func__,
ux500_av8100_drvdata.card->name);
platform_set_drvdata(
ux500_av8100_platform_device,
&ux500_av8100_drvdata);
ux500_av8100_drvdata.dev = &ux500_av8100_platform_device->dev;
pr_debug("%s: Add platform device (%s).\n",
__func__,
ux500_av8100_drvdata.card->name);
ret = platform_device_add(ux500_av8100_platform_device);
if (ret) {
pr_err("%s: Error: Failed to add platform device (%s).\n",
__func__,
ux500_av8100_drvdata.card->name);
platform_device_put(ux500_av8100_platform_device);
}
return ret;
}
static void __exit ux500_av8100_soc_exit(void)
{
pr_debug("%s: Enter.\n", __func__);
pr_debug("%s: Unregister platform device (%s).\n",
__func__,
ux500_av8100_drvdata.card->name);
platform_device_unregister(ux500_av8100_platform_device);
}
module_init(ux500_av8100_soc_init);
module_exit(ux500_av8100_soc_exit);
MODULE_LICENSE("GPL v2");
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