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>
30 #include <sound/core.h>
31 #include <sound/pcm.h>
32 #include <sound/soc.h>
33 #include <sound/jack.h>
35 #include "omap-dmic.h"
36 #include "omap-mcpdm.h"
38 #include "../codecs/twl6040.h"
41 int jack_detection
; /* board can detect jack events */
42 int mclk_freq
; /* MCLK frequency speed for twl6040 */
44 struct platform_device
*dmic_codec_dev
;
47 static int omap_abe_hw_params(struct snd_pcm_substream
*substream
,
48 struct snd_pcm_hw_params
*params
)
50 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
51 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
52 struct snd_soc_codec
*codec
= rtd
->codec
;
53 struct snd_soc_card
*card
= codec
->card
;
54 struct abe_twl6040
*priv
= snd_soc_card_get_drvdata(card
);
58 clk_id
= twl6040_get_clk_id(rtd
->codec
);
59 if (clk_id
== TWL6040_SYSCLK_SEL_HPPLL
)
60 freq
= priv
->mclk_freq
;
61 else if (clk_id
== TWL6040_SYSCLK_SEL_LPPLL
)
66 /* set the codec mclk */
67 ret
= snd_soc_dai_set_sysclk(codec_dai
, clk_id
, freq
,
70 printk(KERN_ERR
"can't set codec system clock\n");
76 static struct snd_soc_ops omap_abe_ops
= {
77 .hw_params
= omap_abe_hw_params
,
80 static int omap_abe_dmic_hw_params(struct snd_pcm_substream
*substream
,
81 struct snd_pcm_hw_params
*params
)
83 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
84 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
87 ret
= snd_soc_dai_set_sysclk(cpu_dai
, OMAP_DMIC_SYSCLK_PAD_CLKS
,
88 19200000, SND_SOC_CLOCK_IN
);
90 printk(KERN_ERR
"can't set DMIC cpu system clock\n");
93 ret
= snd_soc_dai_set_sysclk(cpu_dai
, OMAP_DMIC_ABE_DMIC_CLK
, 2400000,
96 printk(KERN_ERR
"can't set DMIC output clock\n");
102 static struct snd_soc_ops omap_abe_dmic_ops
= {
103 .hw_params
= omap_abe_dmic_hw_params
,
107 static struct snd_soc_jack hs_jack
;
109 /*Headset jack detection DAPM pins */
110 static struct snd_soc_jack_pin hs_jack_pins
[] = {
112 .pin
= "Headset Mic",
113 .mask
= SND_JACK_MICROPHONE
,
116 .pin
= "Headset Stereophone",
117 .mask
= SND_JACK_HEADPHONE
,
121 /* SDP4430 machine DAPM */
122 static const struct snd_soc_dapm_widget twl6040_dapm_widgets
[] = {
124 SND_SOC_DAPM_HP("Headset Stereophone", NULL
),
125 SND_SOC_DAPM_SPK("Earphone Spk", NULL
),
126 SND_SOC_DAPM_SPK("Ext Spk", NULL
),
127 SND_SOC_DAPM_LINE("Line Out", NULL
),
128 SND_SOC_DAPM_SPK("Vibrator", NULL
),
131 SND_SOC_DAPM_MIC("Headset Mic", NULL
),
132 SND_SOC_DAPM_MIC("Main Handset Mic", NULL
),
133 SND_SOC_DAPM_MIC("Sub Handset Mic", NULL
),
134 SND_SOC_DAPM_LINE("Line In", NULL
),
136 /* Digital microphones */
137 SND_SOC_DAPM_MIC("Digital Mic", NULL
),
140 static const struct snd_soc_dapm_route audio_map
[] = {
141 /* Routings for outputs */
142 {"Headset Stereophone", NULL
, "HSOL"},
143 {"Headset Stereophone", NULL
, "HSOR"},
145 {"Earphone Spk", NULL
, "EP"},
147 {"Ext Spk", NULL
, "HFL"},
148 {"Ext Spk", NULL
, "HFR"},
150 {"Line Out", NULL
, "AUXL"},
151 {"Line Out", NULL
, "AUXR"},
153 {"Vibrator", NULL
, "VIBRAL"},
154 {"Vibrator", NULL
, "VIBRAR"},
156 /* Routings for inputs */
157 {"HSMIC", NULL
, "Headset Mic"},
158 {"Headset Mic", NULL
, "Headset Mic Bias"},
160 {"MAINMIC", NULL
, "Main Handset Mic"},
161 {"Main Handset Mic", NULL
, "Main Mic Bias"},
163 {"SUBMIC", NULL
, "Sub Handset Mic"},
164 {"Sub Handset Mic", NULL
, "Main Mic Bias"},
166 {"AFML", NULL
, "Line In"},
167 {"AFMR", NULL
, "Line In"},
170 static inline void twl6040_disconnect_pin(struct snd_soc_dapm_context
*dapm
,
171 int connected
, char *pin
)
174 snd_soc_dapm_disable_pin(dapm
, pin
);
177 static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime
*rtd
)
179 struct snd_soc_codec
*codec
= rtd
->codec
;
180 struct snd_soc_card
*card
= codec
->card
;
181 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
182 struct omap_abe_twl6040_data
*pdata
= dev_get_platdata(card
->dev
);
183 struct abe_twl6040
*priv
= snd_soc_card_get_drvdata(card
);
188 * Configure McPDM offset cancellation based on the HSOTRIM value from
191 hs_trim
= twl6040_get_trim_value(codec
, TWL6040_TRIM_HSOTRIM
);
192 omap_mcpdm_configure_dn_offsets(rtd
, TWL6040_HSF_TRIM_LEFT(hs_trim
),
193 TWL6040_HSF_TRIM_RIGHT(hs_trim
));
195 /* Headset jack detection only if it is supported */
196 if (priv
->jack_detection
) {
197 ret
= snd_soc_jack_new(codec
, "Headset Jack",
198 SND_JACK_HEADSET
, &hs_jack
);
202 ret
= snd_soc_jack_add_pins(&hs_jack
, ARRAY_SIZE(hs_jack_pins
),
204 twl6040_hs_jack_detect(codec
, &hs_jack
, SND_JACK_HEADSET
);
208 * NULL pdata means we booted with DT. In this case the routing is
209 * provided and the card is fully routed, no need to mark pins.
214 /* Disable not connected paths if not used */
215 twl6040_disconnect_pin(dapm
, pdata
->has_hs
, "Headset Stereophone");
216 twl6040_disconnect_pin(dapm
, pdata
->has_hf
, "Ext Spk");
217 twl6040_disconnect_pin(dapm
, pdata
->has_ep
, "Earphone Spk");
218 twl6040_disconnect_pin(dapm
, pdata
->has_aux
, "Line Out");
219 twl6040_disconnect_pin(dapm
, pdata
->has_vibra
, "Vibrator");
220 twl6040_disconnect_pin(dapm
, pdata
->has_hsmic
, "Headset Mic");
221 twl6040_disconnect_pin(dapm
, pdata
->has_mainmic
, "Main Handset Mic");
222 twl6040_disconnect_pin(dapm
, pdata
->has_submic
, "Sub Handset Mic");
223 twl6040_disconnect_pin(dapm
, pdata
->has_afm
, "Line In");
228 static const struct snd_soc_dapm_route dmic_audio_map
[] = {
229 {"DMic", NULL
, "Digital Mic"},
230 {"Digital Mic", NULL
, "Digital Mic1 Bias"},
233 static int omap_abe_dmic_init(struct snd_soc_pcm_runtime
*rtd
)
235 struct snd_soc_codec
*codec
= rtd
->codec
;
236 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
238 return snd_soc_dapm_add_routes(dapm
, dmic_audio_map
,
239 ARRAY_SIZE(dmic_audio_map
));
242 /* Digital audio interface glue - connects codec <--> CPU */
243 static struct snd_soc_dai_link abe_twl6040_dai_links
[] = {
246 .stream_name
= "TWL6040",
247 .cpu_dai_name
= "omap-mcpdm",
248 .codec_dai_name
= "twl6040-legacy",
249 .platform_name
= "omap-pcm-audio",
250 .codec_name
= "twl6040-codec",
251 .init
= omap_abe_twl6040_init
,
252 .ops
= &omap_abe_ops
,
256 .stream_name
= "DMIC Capture",
257 .cpu_dai_name
= "omap-dmic",
258 .codec_dai_name
= "dmic-hifi",
259 .platform_name
= "omap-pcm-audio",
260 .codec_name
= "dmic-codec",
261 .init
= omap_abe_dmic_init
,
262 .ops
= &omap_abe_dmic_ops
,
266 /* Audio machine driver */
267 static struct snd_soc_card omap_abe_card
= {
268 .owner
= THIS_MODULE
,
270 .dapm_widgets
= twl6040_dapm_widgets
,
271 .num_dapm_widgets
= ARRAY_SIZE(twl6040_dapm_widgets
),
272 .dapm_routes
= audio_map
,
273 .num_dapm_routes
= ARRAY_SIZE(audio_map
),
276 static int omap_abe_probe(struct platform_device
*pdev
)
278 struct omap_abe_twl6040_data
*pdata
= dev_get_platdata(&pdev
->dev
);
279 struct device_node
*node
= pdev
->dev
.of_node
;
280 struct snd_soc_card
*card
= &omap_abe_card
;
281 struct abe_twl6040
*priv
;
285 card
->dev
= &pdev
->dev
;
287 priv
= devm_kzalloc(&pdev
->dev
, sizeof(struct abe_twl6040
), GFP_KERNEL
);
291 priv
->dmic_codec_dev
= ERR_PTR(-EINVAL
);
294 struct device_node
*dai_node
;
296 if (snd_soc_of_parse_card_name(card
, "ti,model")) {
297 dev_err(&pdev
->dev
, "Card name is not provided\n");
301 ret
= snd_soc_of_parse_audio_routing(card
,
305 "Error while parsing DAPM routing\n");
309 dai_node
= of_parse_phandle(node
, "ti,mcpdm", 0);
311 dev_err(&pdev
->dev
, "McPDM node is not provided\n");
314 abe_twl6040_dai_links
[0].cpu_dai_name
= NULL
;
315 abe_twl6040_dai_links
[0].cpu_of_node
= dai_node
;
317 dai_node
= of_parse_phandle(node
, "ti,dmic", 0);
320 abe_twl6040_dai_links
[1].cpu_dai_name
= NULL
;
321 abe_twl6040_dai_links
[1].cpu_of_node
= dai_node
;
323 priv
->dmic_codec_dev
= platform_device_register_simple(
324 "dmic-codec", -1, NULL
, 0);
325 if (IS_ERR(priv
->dmic_codec_dev
)) {
327 "Can't instantiate dmic-codec\n");
328 return PTR_ERR(priv
->dmic_codec_dev
);
334 priv
->jack_detection
= of_property_read_bool(node
,
335 "ti,jack-detection");
336 of_property_read_u32(node
, "ti,mclk-freq",
338 if (!priv
->mclk_freq
) {
339 dev_err(&pdev
->dev
, "MCLK frequency not provided\n");
344 omap_abe_card
.fully_routed
= 1;
346 if (pdata
->card_name
) {
347 card
->name
= pdata
->card_name
;
349 dev_err(&pdev
->dev
, "Card name is not provided\n");
358 priv
->jack_detection
= pdata
->jack_detection
;
359 priv
->mclk_freq
= pdata
->mclk_freq
;
361 dev_err(&pdev
->dev
, "Missing pdata\n");
366 if (!priv
->mclk_freq
) {
367 dev_err(&pdev
->dev
, "MCLK frequency missing\n");
372 card
->dai_link
= abe_twl6040_dai_links
;
373 card
->num_links
= num_links
;
375 snd_soc_card_set_drvdata(card
, priv
);
377 ret
= snd_soc_register_card(card
);
379 dev_err(&pdev
->dev
, "snd_soc_register_card() failed: %d\n",
387 if (!IS_ERR(priv
->dmic_codec_dev
))
388 platform_device_unregister(priv
->dmic_codec_dev
);
393 static int omap_abe_remove(struct platform_device
*pdev
)
395 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
396 struct abe_twl6040
*priv
= snd_soc_card_get_drvdata(card
);
398 snd_soc_unregister_card(card
);
400 if (!IS_ERR(priv
->dmic_codec_dev
))
401 platform_device_unregister(priv
->dmic_codec_dev
);
406 static const struct of_device_id omap_abe_of_match
[] = {
407 {.compatible
= "ti,abe-twl6040", },
410 MODULE_DEVICE_TABLE(of
, omap_abe_of_match
);
412 static struct platform_driver omap_abe_driver
= {
414 .name
= "omap-abe-twl6040",
415 .owner
= THIS_MODULE
,
416 .pm
= &snd_soc_pm_ops
,
417 .of_match_table
= omap_abe_of_match
,
419 .probe
= omap_abe_probe
,
420 .remove
= omap_abe_remove
,
423 module_platform_driver(omap_abe_driver
);
425 MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
426 MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec");
427 MODULE_LICENSE("GPL");
428 MODULE_ALIAS("platform:omap-abe-twl6040");