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");