imx-audmix.c (e9cbc89067cce78211c8629c78e931c0fe64e29d) imx-audmix.c (14ec63f678e8beaaa1005ccae6c112bf672ba2b3)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright 2017 NXP
4 *
5 * The code contained herein is licensed under the GNU General Public
6 * License. You may obtain a copy of the GNU General Public License
7 * Version 2 or later at the following locations:
8 *

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38
39static const struct snd_pcm_hw_constraint_list imx_audmix_rate_constraints = {
40 .count = ARRAY_SIZE(imx_audmix_rates),
41 .list = imx_audmix_rates,
42};
43
44static int imx_audmix_fe_startup(struct snd_pcm_substream *substream)
45{
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright 2017 NXP
4 *
5 * The code contained herein is licensed under the GNU General Public
6 * License. You may obtain a copy of the GNU General Public License
7 * Version 2 or later at the following locations:
8 *

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38
39static const struct snd_pcm_hw_constraint_list imx_audmix_rate_constraints = {
40 .count = ARRAY_SIZE(imx_audmix_rates),
41 .list = imx_audmix_rates,
42};
43
44static int imx_audmix_fe_startup(struct snd_pcm_substream *substream)
45{
46 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
46 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
47 struct imx_audmix *priv = snd_soc_card_get_drvdata(rtd->card);
48 struct snd_pcm_runtime *runtime = substream->runtime;
49 struct device *dev = rtd->card->dev;
50 unsigned long clk_rate = clk_get_rate(priv->cpu_mclk);
51 int ret;
52
53 if (clk_rate % 24576000 == 0) {
54 ret = snd_pcm_hw_constraint_list(runtime, 0,

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67
68 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
69 FSL_AUDMIX_FORMATS);
70}
71
72static int imx_audmix_fe_hw_params(struct snd_pcm_substream *substream,
73 struct snd_pcm_hw_params *params)
74{
47 struct imx_audmix *priv = snd_soc_card_get_drvdata(rtd->card);
48 struct snd_pcm_runtime *runtime = substream->runtime;
49 struct device *dev = rtd->card->dev;
50 unsigned long clk_rate = clk_get_rate(priv->cpu_mclk);
51 int ret;
52
53 if (clk_rate % 24576000 == 0) {
54 ret = snd_pcm_hw_constraint_list(runtime, 0,

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67
68 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
69 FSL_AUDMIX_FORMATS);
70}
71
72static int imx_audmix_fe_hw_params(struct snd_pcm_substream *substream,
73 struct snd_pcm_hw_params *params)
74{
75 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
75 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
76 struct device *dev = rtd->card->dev;
77 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
78 unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
79 u32 channels = params_channels(params);
80 int ret, dir;
81
82 /* For playback the AUDMIX is consumer, and for record is provider */
83 fmt |= tx ? SND_SOC_DAIFMT_BP_FP : SND_SOC_DAIFMT_BC_FC;
84 dir = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN;
85
86 /* set DAI configuration */
76 struct device *dev = rtd->card->dev;
77 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
78 unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
79 u32 channels = params_channels(params);
80 int ret, dir;
81
82 /* For playback the AUDMIX is consumer, and for record is provider */
83 fmt |= tx ? SND_SOC_DAIFMT_BP_FP : SND_SOC_DAIFMT_BC_FC;
84 dir = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN;
85
86 /* set DAI configuration */
87 ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), fmt);
87 ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0), fmt);
88 if (ret) {
89 dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
90 return ret;
91 }
92
88 if (ret) {
89 dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
90 return ret;
91 }
92
93 ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), FSL_SAI_CLK_MAST1, 0, dir);
93 ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_cpu(rtd, 0), FSL_SAI_CLK_MAST1, 0, dir);
94 if (ret) {
95 dev_err(dev, "failed to set cpu sysclk: %d\n", ret);
96 return ret;
97 }
98
99 /*
100 * Per datasheet, AUDMIX expects 8 slots and 32 bits
101 * for every slot in TDM mode.
102 */
94 if (ret) {
95 dev_err(dev, "failed to set cpu sysclk: %d\n", ret);
96 return ret;
97 }
98
99 /*
100 * Per datasheet, AUDMIX expects 8 slots and 32 bits
101 * for every slot in TDM mode.
102 */
103 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), BIT(channels) - 1,
103 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), BIT(channels) - 1,
104 BIT(channels) - 1, 8, 32);
105 if (ret)
106 dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
107
108 return ret;
109}
110
111static int imx_audmix_be_hw_params(struct snd_pcm_substream *substream,
112 struct snd_pcm_hw_params *params)
113{
104 BIT(channels) - 1, 8, 32);
105 if (ret)
106 dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
107
108 return ret;
109}
110
111static int imx_audmix_be_hw_params(struct snd_pcm_substream *substream,
112 struct snd_pcm_hw_params *params)
113{
114 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
114 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
115 struct device *dev = rtd->card->dev;
116 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
117 unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
118 int ret;
119
120 if (!tx)
121 return 0;
122
123 /* For playback the AUDMIX is consumer */
124 fmt |= SND_SOC_DAIFMT_BC_FC;
125
126 /* set AUDMIX DAI configuration */
115 struct device *dev = rtd->card->dev;
116 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
117 unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
118 int ret;
119
120 if (!tx)
121 return 0;
122
123 /* For playback the AUDMIX is consumer */
124 fmt |= SND_SOC_DAIFMT_BC_FC;
125
126 /* set AUDMIX DAI configuration */
127 ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), fmt);
127 ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0), fmt);
128 if (ret)
129 dev_err(dev, "failed to set AUDMIX DAI fmt: %d\n", ret);
130
131 return ret;
132}
133
134static const struct snd_soc_ops imx_audmix_fe_ops = {
135 .startup = imx_audmix_fe_startup,

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242 }
243
244 /*
245 * CPU == Platform
246 * platform is using soc-generic-dmaengine-pcm
247 */
248 priv->dai[i].cpus =
249 priv->dai[i].platforms = &dlc[0];
128 if (ret)
129 dev_err(dev, "failed to set AUDMIX DAI fmt: %d\n", ret);
130
131 return ret;
132}
133
134static const struct snd_soc_ops imx_audmix_fe_ops = {
135 .startup = imx_audmix_fe_startup,

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242 }
243
244 /*
245 * CPU == Platform
246 * platform is using soc-generic-dmaengine-pcm
247 */
248 priv->dai[i].cpus =
249 priv->dai[i].platforms = &dlc[0];
250 priv->dai[i].codecs = &asoc_dummy_dlc;
250 priv->dai[i].codecs = &snd_soc_dummy_dlc;
251
252 priv->dai[i].num_cpus = 1;
253 priv->dai[i].num_codecs = 1;
254 priv->dai[i].num_platforms = 1;
255
256 priv->dai[i].name = dai_name;
257 priv->dai[i].stream_name = "HiFi-AUDMIX-FE";
258 priv->dai[i].cpus->of_node = args.np;

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269 be_pb = devm_kasprintf(&pdev->dev, GFP_KERNEL,
270 "AUDMIX-Playback-%d", i);
271 be_cp = devm_kasprintf(&pdev->dev, GFP_KERNEL,
272 "AUDMIX-Capture-%d", i);
273 if (!be_name || !be_pb || !be_cp)
274 return -ENOMEM;
275
276 priv->dai[num_dai + i].cpus = &dlc[1];
251
252 priv->dai[i].num_cpus = 1;
253 priv->dai[i].num_codecs = 1;
254 priv->dai[i].num_platforms = 1;
255
256 priv->dai[i].name = dai_name;
257 priv->dai[i].stream_name = "HiFi-AUDMIX-FE";
258 priv->dai[i].cpus->of_node = args.np;

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269 be_pb = devm_kasprintf(&pdev->dev, GFP_KERNEL,
270 "AUDMIX-Playback-%d", i);
271 be_cp = devm_kasprintf(&pdev->dev, GFP_KERNEL,
272 "AUDMIX-Capture-%d", i);
273 if (!be_name || !be_pb || !be_cp)
274 return -ENOMEM;
275
276 priv->dai[num_dai + i].cpus = &dlc[1];
277 priv->dai[num_dai + i].codecs = &asoc_dummy_dlc;
277 priv->dai[num_dai + i].codecs = &snd_soc_dummy_dlc;
278
279 priv->dai[num_dai + i].num_cpus = 1;
280 priv->dai[num_dai + i].num_codecs = 1;
281
282 priv->dai[num_dai + i].name = be_name;
283 priv->dai[num_dai + i].cpus->of_node = audmix_np;
284 priv->dai[num_dai + i].cpus->dai_name = be_name;
285 priv->dai[num_dai + i].no_pcm = 1;

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310 return -EINVAL;
311 }
312 put_device(&cpu_pdev->dev);
313
314 priv->cpu_mclk = devm_clk_get(&cpu_pdev->dev, "mclk1");
315 if (IS_ERR(priv->cpu_mclk)) {
316 ret = PTR_ERR(priv->cpu_mclk);
317 dev_err(&cpu_pdev->dev, "failed to get DAI mclk1: %d\n", ret);
278
279 priv->dai[num_dai + i].num_cpus = 1;
280 priv->dai[num_dai + i].num_codecs = 1;
281
282 priv->dai[num_dai + i].name = be_name;
283 priv->dai[num_dai + i].cpus->of_node = audmix_np;
284 priv->dai[num_dai + i].cpus->dai_name = be_name;
285 priv->dai[num_dai + i].no_pcm = 1;

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310 return -EINVAL;
311 }
312 put_device(&cpu_pdev->dev);
313
314 priv->cpu_mclk = devm_clk_get(&cpu_pdev->dev, "mclk1");
315 if (IS_ERR(priv->cpu_mclk)) {
316 ret = PTR_ERR(priv->cpu_mclk);
317 dev_err(&cpu_pdev->dev, "failed to get DAI mclk1: %d\n", ret);
318 return ret;
318 return -EINVAL;
319 }
320
321 priv->audmix_pdev = audmix_pdev;
322 priv->out_pdev = cpu_pdev;
323
324 priv->card.dai_link = priv->dai;
325 priv->card.num_links = priv->num_dai;
326 priv->card.codec_conf = priv->dai_conf;

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320
321 priv->audmix_pdev = audmix_pdev;
322 priv->out_pdev = cpu_pdev;
323
324 priv->card.dai_link = priv->dai;
325 priv->card.num_links = priv->num_dai;
326 priv->card.codec_conf = priv->dai_conf;

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