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