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144 lines
3.8 KiB
144 lines
3.8 KiB
// 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 <[email protected]"); |
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MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver"); |
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MODULE_LICENSE("GPL v2");
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