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/platform_data/omap-abe-twl6040.h>
27 #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 <asm/mach-types.h>
35 #include <plat/hardware.h>
38 #include "omap-dmic.h"
39 #include "omap-mcpdm.h"
41 #include "../codecs/twl6040.h"
44 int jack_detection; /* board can detect jack events */
45 int mclk_freq; /* MCLK frequency speed for twl6040 */
48 static int omap_abe_hw_params(struct snd_pcm_substream *substream,
49 struct snd_pcm_hw_params *params)
51 struct snd_soc_pcm_runtime *rtd = substream->private_data;
52 struct snd_soc_dai *codec_dai = rtd->codec_dai;
53 struct snd_soc_codec *codec = rtd->codec;
54 struct snd_soc_card *card = codec->card;
55 struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
59 clk_id = twl6040_get_clk_id(rtd->codec);
60 if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
61 freq = priv->mclk_freq;
62 else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
67 /* set the codec mclk */
68 ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
71 printk(KERN_ERR "can't set codec system clock\n");
77 static struct snd_soc_ops omap_abe_ops = {
78 .hw_params = omap_abe_hw_params,
81 static int omap_abe_dmic_hw_params(struct snd_pcm_substream *substream,
82 struct snd_pcm_hw_params *params)
84 struct snd_soc_pcm_runtime *rtd = substream->private_data;
85 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
88 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_SYSCLK_PAD_CLKS,
89 19200000, SND_SOC_CLOCK_IN);
91 printk(KERN_ERR "can't set DMIC cpu system clock\n");
94 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_ABE_DMIC_CLK, 2400000,
97 printk(KERN_ERR "can't set DMIC output clock\n");
103 static struct snd_soc_ops omap_abe_dmic_ops = {
104 .hw_params = omap_abe_dmic_hw_params,
108 static struct snd_soc_jack hs_jack;
110 /*Headset jack detection DAPM pins */
111 static struct snd_soc_jack_pin hs_jack_pins[] = {
113 .pin = "Headset Mic",
114 .mask = SND_JACK_MICROPHONE,
117 .pin = "Headset Stereophone",
118 .mask = SND_JACK_HEADPHONE,
122 /* SDP4430 machine DAPM */
123 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
125 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
126 SND_SOC_DAPM_SPK("Earphone Spk", NULL),
127 SND_SOC_DAPM_SPK("Ext Spk", NULL),
128 SND_SOC_DAPM_LINE("Line Out", NULL),
129 SND_SOC_DAPM_SPK("Vibrator", NULL),
132 SND_SOC_DAPM_MIC("Headset Mic", NULL),
133 SND_SOC_DAPM_MIC("Main Handset Mic", NULL),
134 SND_SOC_DAPM_MIC("Sub Handset Mic", NULL),
135 SND_SOC_DAPM_LINE("Line In", NULL),
137 /* Digital microphones */
138 SND_SOC_DAPM_MIC("Digital Mic", NULL),
141 static const struct snd_soc_dapm_route audio_map[] = {
142 /* Routings for outputs */
143 {"Headset Stereophone", NULL, "HSOL"},
144 {"Headset Stereophone", NULL, "HSOR"},
146 {"Earphone Spk", NULL, "EP"},
148 {"Ext Spk", NULL, "HFL"},
149 {"Ext Spk", NULL, "HFR"},
151 {"Line Out", NULL, "AUXL"},
152 {"Line Out", NULL, "AUXR"},
154 {"Vibrator", NULL, "VIBRAL"},
155 {"Vibrator", NULL, "VIBRAR"},
157 /* Routings for inputs */
158 {"HSMIC", NULL, "Headset Mic"},
159 {"Headset Mic", NULL, "Headset Mic Bias"},
161 {"MAINMIC", NULL, "Main Handset Mic"},
162 {"Main Handset Mic", NULL, "Main Mic Bias"},
164 {"SUBMIC", NULL, "Sub Handset Mic"},
165 {"Sub Handset Mic", NULL, "Main Mic Bias"},
167 {"AFML", NULL, "Line In"},
168 {"AFMR", NULL, "Line In"},
171 static inline void twl6040_disconnect_pin(struct snd_soc_dapm_context *dapm,
172 int connected, char *pin)
175 snd_soc_dapm_disable_pin(dapm, pin);
178 static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime *rtd)
180 struct snd_soc_codec *codec = rtd->codec;
181 struct snd_soc_card *card = codec->card;
182 struct snd_soc_dapm_context *dapm = &codec->dapm;
183 struct omap_abe_twl6040_data *pdata = dev_get_platdata(card->dev);
184 struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
188 /* Disable not connected paths if not used */
189 twl6040_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");
190 twl6040_disconnect_pin(dapm, pdata->has_hf, "Ext Spk");
191 twl6040_disconnect_pin(dapm, pdata->has_ep, "Earphone Spk");
192 twl6040_disconnect_pin(dapm, pdata->has_aux, "Line Out");
193 twl6040_disconnect_pin(dapm, pdata->has_vibra, "Vinrator");
194 twl6040_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");
195 twl6040_disconnect_pin(dapm, pdata->has_mainmic, "Main Handset Mic");
196 twl6040_disconnect_pin(dapm, pdata->has_submic, "Sub Handset Mic");
197 twl6040_disconnect_pin(dapm, pdata->has_afm, "Line In");
200 * Configure McPDM offset cancellation based on the HSOTRIM value from
203 hs_trim = twl6040_get_trim_value(codec, TWL6040_TRIM_HSOTRIM);
204 omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim),
205 TWL6040_HSF_TRIM_RIGHT(hs_trim));
207 /* Headset jack detection only if it is supported */
208 if (priv->jack_detection) {
209 ret = snd_soc_jack_new(codec, "Headset Jack",
210 SND_JACK_HEADSET, &hs_jack);
214 ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
216 twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
222 static const struct snd_soc_dapm_route dmic_audio_map[] = {
223 {"DMic", NULL, "Digital Mic"},
224 {"Digital Mic", NULL, "Digital Mic1 Bias"},
227 static int omap_abe_dmic_init(struct snd_soc_pcm_runtime *rtd)
229 struct snd_soc_codec *codec = rtd->codec;
230 struct snd_soc_dapm_context *dapm = &codec->dapm;
232 return snd_soc_dapm_add_routes(dapm, dmic_audio_map,
233 ARRAY_SIZE(dmic_audio_map));
236 /* Digital audio interface glue - connects codec <--> CPU */
237 static struct snd_soc_dai_link abe_twl6040_dai_links[] = {
240 .stream_name = "TWL6040",
241 .cpu_dai_name = "omap-mcpdm",
242 .codec_dai_name = "twl6040-legacy",
243 .platform_name = "omap-pcm-audio",
244 .codec_name = "twl6040-codec",
245 .init = omap_abe_twl6040_init,
246 .ops = &omap_abe_ops,
250 .stream_name = "DMIC Capture",
251 .cpu_dai_name = "omap-dmic",
252 .codec_dai_name = "dmic-hifi",
253 .platform_name = "omap-pcm-audio",
254 .codec_name = "dmic-codec",
255 .init = omap_abe_dmic_init,
256 .ops = &omap_abe_dmic_ops,
260 /* Audio machine driver */
261 static struct snd_soc_card omap_abe_card = {
262 .owner = THIS_MODULE,
264 .dapm_widgets = twl6040_dapm_widgets,
265 .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
266 .dapm_routes = audio_map,
267 .num_dapm_routes = ARRAY_SIZE(audio_map),
270 static __devinit int omap_abe_probe(struct platform_device *pdev)
272 struct omap_abe_twl6040_data *pdata = dev_get_platdata(&pdev->dev);
273 struct snd_soc_card *card = &omap_abe_card;
274 struct abe_twl6040 *priv;
278 card->dev = &pdev->dev;
281 dev_err(&pdev->dev, "Missing pdata\n");
285 priv = devm_kzalloc(&pdev->dev, sizeof(struct abe_twl6040), GFP_KERNEL);
289 if (pdata->card_name) {
290 card->name = pdata->card_name;
292 dev_err(&pdev->dev, "Card name is not provided\n");
296 priv->jack_detection = pdata->jack_detection;
297 priv->mclk_freq = pdata->mclk_freq;
300 if (!priv->mclk_freq) {
301 dev_err(&pdev->dev, "MCLK frequency missing\n");
310 card->dai_link = abe_twl6040_dai_links;
311 card->num_links = num_links;
313 snd_soc_card_set_drvdata(card, priv);
315 ret = snd_soc_register_card(card);
317 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
323 static int __devexit omap_abe_remove(struct platform_device *pdev)
325 struct snd_soc_card *card = platform_get_drvdata(pdev);
327 snd_soc_unregister_card(card);
332 static struct platform_driver omap_abe_driver = {
334 .name = "omap-abe-twl6040",
335 .owner = THIS_MODULE,
336 .pm = &snd_soc_pm_ops,
338 .probe = omap_abe_probe,
339 .remove = __devexit_p(omap_abe_remove),
342 module_platform_driver(omap_abe_driver);
344 MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
345 MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec");
346 MODULE_LICENSE("GPL");
347 MODULE_ALIAS("platform:omap-abe-twl6040");