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 <asm/mach-types.h>
36 #include <plat/hardware.h>
39 #include "omap-dmic.h"
40 #include "omap-mcpdm.h"
42 #include "../codecs/twl6040.h"
45 int jack_detection
; /* board can detect jack events */
46 int mclk_freq
; /* MCLK frequency speed for twl6040 */
48 struct platform_device
*dmic_codec_dev
;
51 static int omap_abe_hw_params(struct snd_pcm_substream
*substream
,
52 struct snd_pcm_hw_params
*params
)
54 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
55 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
56 struct snd_soc_codec
*codec
= rtd
->codec
;
57 struct snd_soc_card
*card
= codec
->card
;
58 struct abe_twl6040
*priv
= snd_soc_card_get_drvdata(card
);
62 clk_id
= twl6040_get_clk_id(rtd
->codec
);
63 if (clk_id
== TWL6040_SYSCLK_SEL_HPPLL
)
64 freq
= priv
->mclk_freq
;
65 else if (clk_id
== TWL6040_SYSCLK_SEL_LPPLL
)
70 /* set the codec mclk */
71 ret
= snd_soc_dai_set_sysclk(codec_dai
, clk_id
, freq
,
74 printk(KERN_ERR
"can't set codec system clock\n");
80 static struct snd_soc_ops omap_abe_ops
= {
81 .hw_params
= omap_abe_hw_params
,
84 static int omap_abe_dmic_hw_params(struct snd_pcm_substream
*substream
,
85 struct snd_pcm_hw_params
*params
)
87 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
88 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
91 ret
= snd_soc_dai_set_sysclk(cpu_dai
, OMAP_DMIC_SYSCLK_PAD_CLKS
,
92 19200000, SND_SOC_CLOCK_IN
);
94 printk(KERN_ERR
"can't set DMIC cpu system clock\n");
97 ret
= snd_soc_dai_set_sysclk(cpu_dai
, OMAP_DMIC_ABE_DMIC_CLK
, 2400000,
100 printk(KERN_ERR
"can't set DMIC output clock\n");
106 static struct snd_soc_ops omap_abe_dmic_ops
= {
107 .hw_params
= omap_abe_dmic_hw_params
,
111 static struct snd_soc_jack hs_jack
;
113 /*Headset jack detection DAPM pins */
114 static struct snd_soc_jack_pin hs_jack_pins
[] = {
116 .pin
= "Headset Mic",
117 .mask
= SND_JACK_MICROPHONE
,
120 .pin
= "Headset Stereophone",
121 .mask
= SND_JACK_HEADPHONE
,
125 /* SDP4430 machine DAPM */
126 static const struct snd_soc_dapm_widget twl6040_dapm_widgets
[] = {
128 SND_SOC_DAPM_HP("Headset Stereophone", NULL
),
129 SND_SOC_DAPM_SPK("Earphone Spk", NULL
),
130 SND_SOC_DAPM_SPK("Ext Spk", NULL
),
131 SND_SOC_DAPM_LINE("Line Out", NULL
),
132 SND_SOC_DAPM_SPK("Vibrator", NULL
),
135 SND_SOC_DAPM_MIC("Headset Mic", NULL
),
136 SND_SOC_DAPM_MIC("Main Handset Mic", NULL
),
137 SND_SOC_DAPM_MIC("Sub Handset Mic", NULL
),
138 SND_SOC_DAPM_LINE("Line In", NULL
),
140 /* Digital microphones */
141 SND_SOC_DAPM_MIC("Digital Mic", NULL
),
144 static const struct snd_soc_dapm_route audio_map
[] = {
145 /* Routings for outputs */
146 {"Headset Stereophone", NULL
, "HSOL"},
147 {"Headset Stereophone", NULL
, "HSOR"},
149 {"Earphone Spk", NULL
, "EP"},
151 {"Ext Spk", NULL
, "HFL"},
152 {"Ext Spk", NULL
, "HFR"},
154 {"Line Out", NULL
, "AUXL"},
155 {"Line Out", NULL
, "AUXR"},
157 {"Vibrator", NULL
, "VIBRAL"},
158 {"Vibrator", NULL
, "VIBRAR"},
160 /* Routings for inputs */
161 {"HSMIC", NULL
, "Headset Mic"},
162 {"Headset Mic", NULL
, "Headset Mic Bias"},
164 {"MAINMIC", NULL
, "Main Handset Mic"},
165 {"Main Handset Mic", NULL
, "Main Mic Bias"},
167 {"SUBMIC", NULL
, "Sub Handset Mic"},
168 {"Sub Handset Mic", NULL
, "Main Mic Bias"},
170 {"AFML", NULL
, "Line In"},
171 {"AFMR", NULL
, "Line In"},
174 static inline void twl6040_disconnect_pin(struct snd_soc_dapm_context
*dapm
,
175 int connected
, char *pin
)
178 snd_soc_dapm_disable_pin(dapm
, pin
);
181 static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime
*rtd
)
183 struct snd_soc_codec
*codec
= rtd
->codec
;
184 struct snd_soc_card
*card
= codec
->card
;
185 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
186 struct omap_abe_twl6040_data
*pdata
= dev_get_platdata(card
->dev
);
187 struct abe_twl6040
*priv
= snd_soc_card_get_drvdata(card
);
192 * Configure McPDM offset cancellation based on the HSOTRIM value from
195 hs_trim
= twl6040_get_trim_value(codec
, TWL6040_TRIM_HSOTRIM
);
196 omap_mcpdm_configure_dn_offsets(rtd
, TWL6040_HSF_TRIM_LEFT(hs_trim
),
197 TWL6040_HSF_TRIM_RIGHT(hs_trim
));
199 /* Headset jack detection only if it is supported */
200 if (priv
->jack_detection
) {
201 ret
= snd_soc_jack_new(codec
, "Headset Jack",
202 SND_JACK_HEADSET
, &hs_jack
);
206 ret
= snd_soc_jack_add_pins(&hs_jack
, ARRAY_SIZE(hs_jack_pins
),
208 twl6040_hs_jack_detect(codec
, &hs_jack
, SND_JACK_HEADSET
);
212 * NULL pdata means we booted with DT. In this case the routing is
213 * provided and the card is fully routed, no need to mark pins.
218 /* Disable not connected paths if not used */
219 twl6040_disconnect_pin(dapm
, pdata
->has_hs
, "Headset Stereophone");
220 twl6040_disconnect_pin(dapm
, pdata
->has_hf
, "Ext Spk");
221 twl6040_disconnect_pin(dapm
, pdata
->has_ep
, "Earphone Spk");
222 twl6040_disconnect_pin(dapm
, pdata
->has_aux
, "Line Out");
223 twl6040_disconnect_pin(dapm
, pdata
->has_vibra
, "Vinrator");
224 twl6040_disconnect_pin(dapm
, pdata
->has_hsmic
, "Headset Mic");
225 twl6040_disconnect_pin(dapm
, pdata
->has_mainmic
, "Main Handset Mic");
226 twl6040_disconnect_pin(dapm
, pdata
->has_submic
, "Sub Handset Mic");
227 twl6040_disconnect_pin(dapm
, pdata
->has_afm
, "Line In");
232 static const struct snd_soc_dapm_route dmic_audio_map
[] = {
233 {"DMic", NULL
, "Digital Mic"},
234 {"Digital Mic", NULL
, "Digital Mic1 Bias"},
237 static int omap_abe_dmic_init(struct snd_soc_pcm_runtime
*rtd
)
239 struct snd_soc_codec
*codec
= rtd
->codec
;
240 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
242 return snd_soc_dapm_add_routes(dapm
, dmic_audio_map
,
243 ARRAY_SIZE(dmic_audio_map
));
246 /* Digital audio interface glue - connects codec <--> CPU */
247 static struct snd_soc_dai_link abe_twl6040_dai_links
[] = {
250 .stream_name
= "TWL6040",
251 .cpu_dai_name
= "omap-mcpdm",
252 .codec_dai_name
= "twl6040-legacy",
253 .platform_name
= "omap-pcm-audio",
254 .codec_name
= "twl6040-codec",
255 .init
= omap_abe_twl6040_init
,
256 .ops
= &omap_abe_ops
,
260 .stream_name
= "DMIC Capture",
261 .cpu_dai_name
= "omap-dmic",
262 .codec_dai_name
= "dmic-hifi",
263 .platform_name
= "omap-pcm-audio",
264 .codec_name
= "dmic-codec",
265 .init
= omap_abe_dmic_init
,
266 .ops
= &omap_abe_dmic_ops
,
270 /* Audio machine driver */
271 static struct snd_soc_card omap_abe_card
= {
272 .owner
= THIS_MODULE
,
274 .dapm_widgets
= twl6040_dapm_widgets
,
275 .num_dapm_widgets
= ARRAY_SIZE(twl6040_dapm_widgets
),
276 .dapm_routes
= audio_map
,
277 .num_dapm_routes
= ARRAY_SIZE(audio_map
),
280 static __devinit
int omap_abe_probe(struct platform_device
*pdev
)
282 struct omap_abe_twl6040_data
*pdata
= dev_get_platdata(&pdev
->dev
);
283 struct device_node
*node
= pdev
->dev
.of_node
;
284 struct snd_soc_card
*card
= &omap_abe_card
;
285 struct abe_twl6040
*priv
;
289 card
->dev
= &pdev
->dev
;
291 priv
= devm_kzalloc(&pdev
->dev
, sizeof(struct abe_twl6040
), GFP_KERNEL
);
295 priv
->dmic_codec_dev
= ERR_PTR(-EINVAL
);
298 struct device_node
*dai_node
;
300 if (snd_soc_of_parse_card_name(card
, "ti,model")) {
301 dev_err(&pdev
->dev
, "Card name is not provided\n");
305 ret
= snd_soc_of_parse_audio_routing(card
,
309 "Error while parsing DAPM routing\n");
313 dai_node
= of_parse_phandle(node
, "ti,mcpdm", 0);
315 dev_err(&pdev
->dev
, "McPDM node is not provided\n");
318 abe_twl6040_dai_links
[0].cpu_dai_name
= NULL
;
319 abe_twl6040_dai_links
[0].cpu_of_node
= dai_node
;
321 dai_node
= of_parse_phandle(node
, "ti,dmic", 0);
324 abe_twl6040_dai_links
[1].cpu_dai_name
= NULL
;
325 abe_twl6040_dai_links
[1].cpu_of_node
= dai_node
;
327 priv
->dmic_codec_dev
= platform_device_register_simple(
328 "dmic-codec", -1, NULL
, 0);
329 if (IS_ERR(priv
->dmic_codec_dev
)) {
331 "Can't instantiate dmic-codec\n");
332 return PTR_ERR(priv
->dmic_codec_dev
);
338 of_property_read_u32(node
, "ti,jack-detection",
339 &priv
->jack_detection
);
340 of_property_read_u32(node
, "ti,mclk-freq",
342 if (!priv
->mclk_freq
) {
343 dev_err(&pdev
->dev
, "MCLK frequency not provided\n");
348 omap_abe_card
.fully_routed
= 1;
350 if (pdata
->card_name
) {
351 card
->name
= pdata
->card_name
;
353 dev_err(&pdev
->dev
, "Card name is not provided\n");
362 priv
->jack_detection
= pdata
->jack_detection
;
363 priv
->mclk_freq
= pdata
->mclk_freq
;
365 dev_err(&pdev
->dev
, "Missing pdata\n");
370 if (!priv
->mclk_freq
) {
371 dev_err(&pdev
->dev
, "MCLK frequency missing\n");
376 card
->dai_link
= abe_twl6040_dai_links
;
377 card
->num_links
= num_links
;
379 snd_soc_card_set_drvdata(card
, priv
);
381 ret
= snd_soc_register_card(card
);
383 dev_err(&pdev
->dev
, "snd_soc_register_card() failed: %d\n",
391 if (!IS_ERR(priv
->dmic_codec_dev
))
392 platform_device_unregister(priv
->dmic_codec_dev
);
397 static int __devexit
omap_abe_remove(struct platform_device
*pdev
)
399 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
400 struct abe_twl6040
*priv
= snd_soc_card_get_drvdata(card
);
402 snd_soc_unregister_card(card
);
404 if (!IS_ERR(priv
->dmic_codec_dev
))
405 platform_device_unregister(priv
->dmic_codec_dev
);
410 static const struct of_device_id omap_abe_of_match
[] = {
411 {.compatible
= "ti,abe-twl6040", },
414 MODULE_DEVICE_TABLE(of
, omap_abe_of_match
);
416 static struct platform_driver omap_abe_driver
= {
418 .name
= "omap-abe-twl6040",
419 .owner
= THIS_MODULE
,
420 .pm
= &snd_soc_pm_ops
,
421 .of_match_table
= omap_abe_of_match
,
423 .probe
= omap_abe_probe
,
424 .remove
= __devexit_p(omap_abe_remove
),
427 module_platform_driver(omap_abe_driver
);
429 MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
430 MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec");
431 MODULE_LICENSE("GPL");
432 MODULE_ALIAS("platform:omap-abe-twl6040");