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// 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 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 = kzalloc(sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
card->dev = dev;
dev_set_drvdata(dev, card);
ret = qcom_snd_parse_of(card);
if (ret)
goto err;
apq8096_add_be_ops(card);
ret = snd_soc_register_card(card);
if (ret)
goto err_card_register;
return 0;
err_card_register:
kfree(card->dai_link);
err:
kfree(card);
return ret;
}
static int apq8096_platform_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = dev_get_drvdata(&pdev->dev);
snd_soc_unregister_card(card);
kfree(card->dai_link);
kfree(card);
return 0;
}
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,
.remove = apq8096_platform_remove,
.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");
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