pcm1681.c (cf40a76e7d5874bb25f4404eecc58a2e033af885) pcm1681.c (7dbbaa5180cb380ac28f023dda8663d8dd3b8b56)
1/*
2 * PCM1681 ASoC codec driver
3 *
4 * Copyright (c) StreamUnlimited GmbH 2013
5 * Marek Belisko <marek.belisko@streamunlimited.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License

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85 /* Current deemphasis status */
86 unsigned int deemph;
87 /* Current rate for deemphasis control */
88 unsigned int rate;
89};
90
91static const int pcm1681_deemph[] = { 44100, 48000, 32000 };
92
1/*
2 * PCM1681 ASoC codec driver
3 *
4 * Copyright (c) StreamUnlimited GmbH 2013
5 * Marek Belisko <marek.belisko@streamunlimited.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License

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85 /* Current deemphasis status */
86 unsigned int deemph;
87 /* Current rate for deemphasis control */
88 unsigned int rate;
89};
90
91static const int pcm1681_deemph[] = { 44100, 48000, 32000 };
92
93static int pcm1681_set_deemph(struct snd_soc_codec *codec)
93static int pcm1681_set_deemph(struct snd_soc_component *component)
94{
94{
95 struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
95 struct pcm1681_private *priv = snd_soc_component_get_drvdata(component);
96 int i = 0, val = -1, enable = 0;
97
98 if (priv->deemph) {
99 for (i = 0; i < ARRAY_SIZE(pcm1681_deemph); i++) {
100 if (pcm1681_deemph[i] == priv->rate) {
101 val = i;
102 break;
103 }

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115 /* enable/disable deemphasis functionality */
116 return regmap_update_bits(priv->regmap, PCM1681_DEEMPH_CONTROL,
117 PCM1681_DEEMPH_MASK, enable);
118}
119
120static int pcm1681_get_deemph(struct snd_kcontrol *kcontrol,
121 struct snd_ctl_elem_value *ucontrol)
122{
96 int i = 0, val = -1, enable = 0;
97
98 if (priv->deemph) {
99 for (i = 0; i < ARRAY_SIZE(pcm1681_deemph); i++) {
100 if (pcm1681_deemph[i] == priv->rate) {
101 val = i;
102 break;
103 }

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115 /* enable/disable deemphasis functionality */
116 return regmap_update_bits(priv->regmap, PCM1681_DEEMPH_CONTROL,
117 PCM1681_DEEMPH_MASK, enable);
118}
119
120static int pcm1681_get_deemph(struct snd_kcontrol *kcontrol,
121 struct snd_ctl_elem_value *ucontrol)
122{
123 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
124 struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
123 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
124 struct pcm1681_private *priv = snd_soc_component_get_drvdata(component);
125
126 ucontrol->value.integer.value[0] = priv->deemph;
127
128 return 0;
129}
130
131static int pcm1681_put_deemph(struct snd_kcontrol *kcontrol,
132 struct snd_ctl_elem_value *ucontrol)
133{
125
126 ucontrol->value.integer.value[0] = priv->deemph;
127
128 return 0;
129}
130
131static int pcm1681_put_deemph(struct snd_kcontrol *kcontrol,
132 struct snd_ctl_elem_value *ucontrol)
133{
134 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
135 struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
134 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
135 struct pcm1681_private *priv = snd_soc_component_get_drvdata(component);
136
137 priv->deemph = ucontrol->value.integer.value[0];
138
136
137 priv->deemph = ucontrol->value.integer.value[0];
138
139 return pcm1681_set_deemph(codec);
139 return pcm1681_set_deemph(component);
140}
141
142static int pcm1681_set_dai_fmt(struct snd_soc_dai *codec_dai,
143 unsigned int format)
144{
140}
141
142static int pcm1681_set_dai_fmt(struct snd_soc_dai *codec_dai,
143 unsigned int format)
144{
145 struct snd_soc_codec *codec = codec_dai->codec;
146 struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
145 struct snd_soc_component *component = codec_dai->component;
146 struct pcm1681_private *priv = snd_soc_component_get_drvdata(component);
147
148 /* The PCM1681 can only be slave to all clocks */
149 if ((format & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) {
147
148 /* The PCM1681 can only be slave to all clocks */
149 if ((format & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) {
150 dev_err(codec->dev, "Invalid clocking mode\n");
150 dev_err(component->dev, "Invalid clocking mode\n");
151 return -EINVAL;
152 }
153
154 priv->format = format;
155
156 return 0;
157}
158
159static int pcm1681_digital_mute(struct snd_soc_dai *dai, int mute)
160{
151 return -EINVAL;
152 }
153
154 priv->format = format;
155
156 return 0;
157}
158
159static int pcm1681_digital_mute(struct snd_soc_dai *dai, int mute)
160{
161 struct snd_soc_codec *codec = dai->codec;
162 struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
161 struct snd_soc_component *component = dai->component;
162 struct pcm1681_private *priv = snd_soc_component_get_drvdata(component);
163 int val;
164
165 if (mute)
166 val = PCM1681_SOFT_MUTE_ALL;
167 else
168 val = 0;
169
170 return regmap_write(priv->regmap, PCM1681_SOFT_MUTE, val);
171}
172
173static int pcm1681_hw_params(struct snd_pcm_substream *substream,
174 struct snd_pcm_hw_params *params,
175 struct snd_soc_dai *dai)
176{
163 int val;
164
165 if (mute)
166 val = PCM1681_SOFT_MUTE_ALL;
167 else
168 val = 0;
169
170 return regmap_write(priv->regmap, PCM1681_SOFT_MUTE, val);
171}
172
173static int pcm1681_hw_params(struct snd_pcm_substream *substream,
174 struct snd_pcm_hw_params *params,
175 struct snd_soc_dai *dai)
176{
177 struct snd_soc_codec *codec = dai->codec;
178 struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
177 struct snd_soc_component *component = dai->component;
178 struct pcm1681_private *priv = snd_soc_component_get_drvdata(component);
179 int val = 0, ret;
180
181 priv->rate = params_rate(params);
182
183 switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
184 case SND_SOC_DAIFMT_RIGHT_J:
185 switch (params_width(params)) {
186 case 24:

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195 break;
196 case SND_SOC_DAIFMT_I2S:
197 val = 0x04;
198 break;
199 case SND_SOC_DAIFMT_LEFT_J:
200 val = 0x05;
201 break;
202 default:
179 int val = 0, ret;
180
181 priv->rate = params_rate(params);
182
183 switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
184 case SND_SOC_DAIFMT_RIGHT_J:
185 switch (params_width(params)) {
186 case 24:

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195 break;
196 case SND_SOC_DAIFMT_I2S:
197 val = 0x04;
198 break;
199 case SND_SOC_DAIFMT_LEFT_J:
200 val = 0x05;
201 break;
202 default:
203 dev_err(codec->dev, "Invalid DAI format\n");
203 dev_err(component->dev, "Invalid DAI format\n");
204 return -EINVAL;
205 }
206
207 ret = regmap_update_bits(priv->regmap, PCM1681_FMT_CONTROL, 0x0f, val);
208 if (ret < 0)
209 return ret;
210
204 return -EINVAL;
205 }
206
207 ret = regmap_update_bits(priv->regmap, PCM1681_FMT_CONTROL, 0x0f, val);
208 if (ret < 0)
209 return ret;
210
211 return pcm1681_set_deemph(codec);
211 return pcm1681_set_deemph(component);
212}
213
214static const struct snd_soc_dai_ops pcm1681_dai_ops = {
215 .set_fmt = pcm1681_set_dai_fmt,
216 .hw_params = pcm1681_hw_params,
217 .digital_mute = pcm1681_digital_mute,
218};
219

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283 .val_bits = 8,
284 .max_register = 0x13,
285 .reg_defaults = pcm1681_reg_defaults,
286 .num_reg_defaults = ARRAY_SIZE(pcm1681_reg_defaults),
287 .writeable_reg = pcm1681_writeable_reg,
288 .readable_reg = pcm1681_accessible_reg,
289};
290
212}
213
214static const struct snd_soc_dai_ops pcm1681_dai_ops = {
215 .set_fmt = pcm1681_set_dai_fmt,
216 .hw_params = pcm1681_hw_params,
217 .digital_mute = pcm1681_digital_mute,
218};
219

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283 .val_bits = 8,
284 .max_register = 0x13,
285 .reg_defaults = pcm1681_reg_defaults,
286 .num_reg_defaults = ARRAY_SIZE(pcm1681_reg_defaults),
287 .writeable_reg = pcm1681_writeable_reg,
288 .readable_reg = pcm1681_accessible_reg,
289};
290
291static const struct snd_soc_codec_driver soc_codec_dev_pcm1681 = {
292 .component_driver = {
293 .controls = pcm1681_controls,
294 .num_controls = ARRAY_SIZE(pcm1681_controls),
295 .dapm_widgets = pcm1681_dapm_widgets,
296 .num_dapm_widgets = ARRAY_SIZE(pcm1681_dapm_widgets),
297 .dapm_routes = pcm1681_dapm_routes,
298 .num_dapm_routes = ARRAY_SIZE(pcm1681_dapm_routes),
299 },
291static const struct snd_soc_component_driver soc_component_dev_pcm1681 = {
292 .controls = pcm1681_controls,
293 .num_controls = ARRAY_SIZE(pcm1681_controls),
294 .dapm_widgets = pcm1681_dapm_widgets,
295 .num_dapm_widgets = ARRAY_SIZE(pcm1681_dapm_widgets),
296 .dapm_routes = pcm1681_dapm_routes,
297 .num_dapm_routes = ARRAY_SIZE(pcm1681_dapm_routes),
298 .idle_bias_on = 1,
299 .use_pmdown_time = 1,
300 .endianness = 1,
301 .non_legacy_dai_naming = 1,
300};
301
302static const struct i2c_device_id pcm1681_i2c_id[] = {
303 {"pcm1681", 0},
304 {}
305};
306MODULE_DEVICE_TABLE(i2c, pcm1681_i2c_id);
307

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319 if (IS_ERR(priv->regmap)) {
320 ret = PTR_ERR(priv->regmap);
321 dev_err(&client->dev, "Failed to create regmap: %d\n", ret);
322 return ret;
323 }
324
325 i2c_set_clientdata(client, priv);
326
302};
303
304static const struct i2c_device_id pcm1681_i2c_id[] = {
305 {"pcm1681", 0},
306 {}
307};
308MODULE_DEVICE_TABLE(i2c, pcm1681_i2c_id);
309

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321 if (IS_ERR(priv->regmap)) {
322 ret = PTR_ERR(priv->regmap);
323 dev_err(&client->dev, "Failed to create regmap: %d\n", ret);
324 return ret;
325 }
326
327 i2c_set_clientdata(client, priv);
328
327 return snd_soc_register_codec(&client->dev, &soc_codec_dev_pcm1681,
329 return devm_snd_soc_register_component(&client->dev,
330 &soc_component_dev_pcm1681,
328 &pcm1681_dai, 1);
329}
330
331 &pcm1681_dai, 1);
332}
333
331static int pcm1681_i2c_remove(struct i2c_client *client)
332{
333 snd_soc_unregister_codec(&client->dev);
334 return 0;
335}
336
337static struct i2c_driver pcm1681_i2c_driver = {
338 .driver = {
339 .name = "pcm1681",
340 .of_match_table = of_match_ptr(pcm1681_dt_ids),
341 },
342 .id_table = pcm1681_i2c_id,
343 .probe = pcm1681_i2c_probe,
334static struct i2c_driver pcm1681_i2c_driver = {
335 .driver = {
336 .name = "pcm1681",
337 .of_match_table = of_match_ptr(pcm1681_dt_ids),
338 },
339 .id_table = pcm1681_i2c_id,
340 .probe = pcm1681_i2c_probe,
344 .remove = pcm1681_i2c_remove,
345};
346
347module_i2c_driver(pcm1681_i2c_driver);
348
349MODULE_DESCRIPTION("Texas Instruments PCM1681 ALSA SoC Codec Driver");
350MODULE_AUTHOR("Marek Belisko <marek.belisko@streamunlimited.com>");
351MODULE_LICENSE("GPL");
341};
342
343module_i2c_driver(pcm1681_i2c_driver);
344
345MODULE_DESCRIPTION("Texas Instruments PCM1681 ALSA SoC Codec Driver");
346MODULE_AUTHOR("Marek Belisko <marek.belisko@streamunlimited.com>");
347MODULE_LICENSE("GPL");