2 * omap-abe-twl6040.c -- SoC audio for TI OMAP based boards with ABE and
5 * Author: Misael Lopez Cruz <misael.lopez@ti.com>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * version 2 as published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
23 #include <linux/clk.h>
24 #include <linux/platform_device.h>
25 #include <linux/mfd/twl6040.h>
26 #include <linux/module.h>
29 #include <sound/core.h>
30 #include <sound/pcm.h>
31 #include <sound/soc.h>
32 #include <sound/jack.h>
34 #include "omap-dmic.h"
35 #include "omap-mcpdm.h"
36 #include "../codecs/twl6040.h"
39 int jack_detection; /* board can detect jack events */
40 int mclk_freq; /* MCLK frequency speed for twl6040 */
42 struct platform_device *dmic_codec_dev;
45 static int omap_abe_hw_params(struct snd_pcm_substream *substream,
46 struct snd_pcm_hw_params *params)
48 struct snd_soc_pcm_runtime *rtd = substream->private_data;
49 struct snd_soc_dai *codec_dai = rtd->codec_dai;
50 struct snd_soc_codec *codec = rtd->codec;
51 struct snd_soc_card *card = codec->card;
52 struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
56 clk_id = twl6040_get_clk_id(rtd->codec);
57 if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
58 freq = priv->mclk_freq;
59 else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
64 /* set the codec mclk */
65 ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
68 printk(KERN_ERR "can't set codec system clock\n");
74 static struct snd_soc_ops omap_abe_ops = {
75 .hw_params = omap_abe_hw_params,
78 static int omap_abe_dmic_hw_params(struct snd_pcm_substream *substream,
79 struct snd_pcm_hw_params *params)
81 struct snd_soc_pcm_runtime *rtd = substream->private_data;
82 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
85 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_SYSCLK_PAD_CLKS,
86 19200000, SND_SOC_CLOCK_IN);
88 printk(KERN_ERR "can't set DMIC cpu system clock\n");
91 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_ABE_DMIC_CLK, 2400000,
94 printk(KERN_ERR "can't set DMIC output clock\n");
100 static struct snd_soc_ops omap_abe_dmic_ops = {
101 .hw_params = omap_abe_dmic_hw_params,
105 static struct snd_soc_jack hs_jack;
107 /*Headset jack detection DAPM pins */
108 static struct snd_soc_jack_pin hs_jack_pins[] = {
110 .pin = "Headset Mic",
111 .mask = SND_JACK_MICROPHONE,
114 .pin = "Headset Stereophone",
115 .mask = SND_JACK_HEADPHONE,
119 /* SDP4430 machine DAPM */
120 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
122 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
123 SND_SOC_DAPM_SPK("Earphone Spk", NULL),
124 SND_SOC_DAPM_SPK("Ext Spk", NULL),
125 SND_SOC_DAPM_LINE("Line Out", NULL),
126 SND_SOC_DAPM_SPK("Vibrator", NULL),
129 SND_SOC_DAPM_MIC("Headset Mic", NULL),
130 SND_SOC_DAPM_MIC("Main Handset Mic", NULL),
131 SND_SOC_DAPM_MIC("Sub Handset Mic", NULL),
132 SND_SOC_DAPM_LINE("Line In", NULL),
134 /* Digital microphones */
135 SND_SOC_DAPM_MIC("Digital Mic", NULL),
138 static const struct snd_soc_dapm_route audio_map[] = {
139 /* Routings for outputs */
140 {"Headset Stereophone", NULL, "HSOL"},
141 {"Headset Stereophone", NULL, "HSOR"},
143 {"Earphone Spk", NULL, "EP"},
145 {"Ext Spk", NULL, "HFL"},
146 {"Ext Spk", NULL, "HFR"},
148 {"Line Out", NULL, "AUXL"},
149 {"Line Out", NULL, "AUXR"},
151 {"Vibrator", NULL, "VIBRAL"},
152 {"Vibrator", NULL, "VIBRAR"},
154 /* Routings for inputs */
155 {"HSMIC", NULL, "Headset Mic"},
156 {"Headset Mic", NULL, "Headset Mic Bias"},
158 {"MAINMIC", NULL, "Main Handset Mic"},
159 {"Main Handset Mic", NULL, "Main Mic Bias"},
161 {"SUBMIC", NULL, "Sub Handset Mic"},
162 {"Sub Handset Mic", NULL, "Main Mic Bias"},
164 {"AFML", NULL, "Line In"},
165 {"AFMR", NULL, "Line In"},
168 static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime *rtd)
170 struct snd_soc_codec *codec = rtd->codec;
171 struct snd_soc_card *card = codec->card;
172 struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
177 * Configure McPDM offset cancellation based on the HSOTRIM value from
180 hs_trim = twl6040_get_trim_value(codec, TWL6040_TRIM_HSOTRIM);
181 omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim),
182 TWL6040_HSF_TRIM_RIGHT(hs_trim));
184 /* Headset jack detection only if it is supported */
185 if (priv->jack_detection) {
186 ret = snd_soc_jack_new(codec, "Headset Jack",
187 SND_JACK_HEADSET, &hs_jack);
191 ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
193 twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
199 static const struct snd_soc_dapm_route dmic_audio_map[] = {
200 {"DMic", NULL, "Digital Mic"},
201 {"Digital Mic", NULL, "Digital Mic1 Bias"},
204 static int omap_abe_dmic_init(struct snd_soc_pcm_runtime *rtd)
206 struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
208 return snd_soc_dapm_add_routes(dapm, dmic_audio_map,
209 ARRAY_SIZE(dmic_audio_map));
212 /* Digital audio interface glue - connects codec <--> CPU */
213 static struct snd_soc_dai_link abe_twl6040_dai_links[] = {
216 .stream_name = "TWL6040",
217 .cpu_dai_name = "omap-mcpdm",
218 .codec_dai_name = "twl6040-legacy",
219 .platform_name = "omap-pcm-audio",
220 .codec_name = "twl6040-codec",
221 .init = omap_abe_twl6040_init,
222 .ops = &omap_abe_ops,
226 .stream_name = "DMIC Capture",
227 .cpu_dai_name = "omap-dmic",
228 .codec_dai_name = "dmic-hifi",
229 .platform_name = "omap-pcm-audio",
230 .codec_name = "dmic-codec",
231 .init = omap_abe_dmic_init,
232 .ops = &omap_abe_dmic_ops,
236 /* Audio machine driver */
237 static struct snd_soc_card omap_abe_card = {
238 .owner = THIS_MODULE,
240 .dapm_widgets = twl6040_dapm_widgets,
241 .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
242 .dapm_routes = audio_map,
243 .num_dapm_routes = ARRAY_SIZE(audio_map),
246 static int omap_abe_probe(struct platform_device *pdev)
248 struct device_node *node = pdev->dev.of_node;
249 struct snd_soc_card *card = &omap_abe_card;
250 struct device_node *dai_node;
251 struct abe_twl6040 *priv;
256 dev_err(&pdev->dev, "of node is missing.\n");
260 card->dev = &pdev->dev;
262 priv = devm_kzalloc(&pdev->dev, sizeof(struct abe_twl6040), GFP_KERNEL);
266 priv->dmic_codec_dev = ERR_PTR(-EINVAL);
268 if (snd_soc_of_parse_card_name(card, "ti,model")) {
269 dev_err(&pdev->dev, "Card name is not provided\n");
273 ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
275 dev_err(&pdev->dev, "Error while parsing DAPM routing\n");
279 dai_node = of_parse_phandle(node, "ti,mcpdm", 0);
281 dev_err(&pdev->dev, "McPDM node is not provided\n");
284 abe_twl6040_dai_links[0].cpu_dai_name = NULL;
285 abe_twl6040_dai_links[0].cpu_of_node = dai_node;
287 dai_node = of_parse_phandle(node, "ti,dmic", 0);
290 abe_twl6040_dai_links[1].cpu_dai_name = NULL;
291 abe_twl6040_dai_links[1].cpu_of_node = dai_node;
293 priv->dmic_codec_dev = platform_device_register_simple(
294 "dmic-codec", -1, NULL, 0);
295 if (IS_ERR(priv->dmic_codec_dev)) {
296 dev_err(&pdev->dev, "Can't instantiate dmic-codec\n");
297 return PTR_ERR(priv->dmic_codec_dev);
303 priv->jack_detection = of_property_read_bool(node, "ti,jack-detection");
304 of_property_read_u32(node, "ti,mclk-freq", &priv->mclk_freq);
305 if (!priv->mclk_freq) {
306 dev_err(&pdev->dev, "MCLK frequency not provided\n");
311 card->fully_routed = 1;
313 if (!priv->mclk_freq) {
314 dev_err(&pdev->dev, "MCLK frequency missing\n");
319 card->dai_link = abe_twl6040_dai_links;
320 card->num_links = num_links;
322 snd_soc_card_set_drvdata(card, priv);
324 ret = snd_soc_register_card(card);
326 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
334 if (!IS_ERR(priv->dmic_codec_dev))
335 platform_device_unregister(priv->dmic_codec_dev);
340 static int omap_abe_remove(struct platform_device *pdev)
342 struct snd_soc_card *card = platform_get_drvdata(pdev);
343 struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
345 snd_soc_unregister_card(card);
347 if (!IS_ERR(priv->dmic_codec_dev))
348 platform_device_unregister(priv->dmic_codec_dev);
353 static const struct of_device_id omap_abe_of_match[] = {
354 {.compatible = "ti,abe-twl6040", },
357 MODULE_DEVICE_TABLE(of, omap_abe_of_match);
359 static struct platform_driver omap_abe_driver = {
361 .name = "omap-abe-twl6040",
362 .owner = THIS_MODULE,
363 .pm = &snd_soc_pm_ops,
364 .of_match_table = omap_abe_of_match,
366 .probe = omap_abe_probe,
367 .remove = omap_abe_remove,
370 module_platform_driver(omap_abe_driver);
372 MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
373 MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec");
374 MODULE_LICENSE("GPL");
375 MODULE_ALIAS("platform:omap-abe-twl6040");