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-rw-r--r--sound/soc/omap/omap-abe-twl6040.c349
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diff --git a/sound/soc/omap/omap-abe-twl6040.c b/sound/soc/omap/omap-abe-twl6040.c
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1/*
2 * omap-abe-twl6040.c -- SoC audio for TI OMAP based boards with ABE and
3 * twl6040 codec
4 *
5 * Author: Misael Lopez Cruz <misael.lopez@ti.com>
6 *
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.
10 *
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.
15 *
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
19 * 02110-1301 USA
20 *
21 */
22
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>
28
29#include <sound/core.h>
30#include <sound/pcm.h>
31#include <sound/soc.h>
32#include <sound/jack.h>
33
34#include <asm/mach-types.h>
35#include <plat/hardware.h>
36#include <plat/mux.h>
37
38#include "omap-dmic.h"
39#include "omap-mcpdm.h"
40#include "omap-pcm.h"
41#include "../codecs/twl6040.h"
42
43static int omap_abe_hw_params(struct snd_pcm_substream *substream,
44 struct snd_pcm_hw_params *params)
45{
46 struct snd_soc_pcm_runtime *rtd = substream->private_data;
47 struct snd_soc_dai *codec_dai = rtd->codec_dai;
48 struct snd_soc_codec *codec = rtd->codec;
49 struct snd_soc_card *card = codec->card;
50 struct omap_abe_twl6040_data *pdata = dev_get_platdata(card->dev);
51 int clk_id, freq;
52 int ret;
53
54 clk_id = twl6040_get_clk_id(rtd->codec);
55 if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
56 freq = pdata->mclk_freq;
57 else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
58 freq = 32768;
59 else
60 return -EINVAL;
61
62 /* set the codec mclk */
63 ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
64 SND_SOC_CLOCK_IN);
65 if (ret) {
66 printk(KERN_ERR "can't set codec system clock\n");
67 return ret;
68 }
69 return ret;
70}
71
72static struct snd_soc_ops omap_abe_ops = {
73 .hw_params = omap_abe_hw_params,
74};
75
76static int omap_abe_dmic_hw_params(struct snd_pcm_substream *substream,
77 struct snd_pcm_hw_params *params)
78{
79 struct snd_soc_pcm_runtime *rtd = substream->private_data;
80 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
81 int ret = 0;
82
83 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_SYSCLK_PAD_CLKS,
84 19200000, SND_SOC_CLOCK_IN);
85 if (ret < 0) {
86 printk(KERN_ERR "can't set DMIC cpu system clock\n");
87 return ret;
88 }
89 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_ABE_DMIC_CLK, 2400000,
90 SND_SOC_CLOCK_OUT);
91 if (ret < 0) {
92 printk(KERN_ERR "can't set DMIC output clock\n");
93 return ret;
94 }
95 return 0;
96}
97
98static struct snd_soc_ops omap_abe_dmic_ops = {
99 .hw_params = omap_abe_dmic_hw_params,
100};
101
102/* Headset jack */
103static struct snd_soc_jack hs_jack;
104
105/*Headset jack detection DAPM pins */
106static struct snd_soc_jack_pin hs_jack_pins[] = {
107 {
108 .pin = "Headset Mic",
109 .mask = SND_JACK_MICROPHONE,
110 },
111 {
112 .pin = "Headset Stereophone",
113 .mask = SND_JACK_HEADPHONE,
114 },
115};
116
117/* SDP4430 machine DAPM */
118static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
119 /* Outputs */
120 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
121 SND_SOC_DAPM_SPK("Earphone Spk", NULL),
122 SND_SOC_DAPM_SPK("Ext Spk", NULL),
123 SND_SOC_DAPM_LINE("Line Out", NULL),
124 SND_SOC_DAPM_SPK("Vibrator", NULL),
125
126 /* Inputs */
127 SND_SOC_DAPM_MIC("Headset Mic", NULL),
128 SND_SOC_DAPM_MIC("Main Handset Mic", NULL),
129 SND_SOC_DAPM_MIC("Sub Handset Mic", NULL),
130 SND_SOC_DAPM_LINE("Line In", NULL),
131};
132
133static const struct snd_soc_dapm_route audio_map[] = {
134 /* Routings for outputs */
135 {"Headset Stereophone", NULL, "HSOL"},
136 {"Headset Stereophone", NULL, "HSOR"},
137
138 {"Earphone Spk", NULL, "EP"},
139
140 {"Ext Spk", NULL, "HFL"},
141 {"Ext Spk", NULL, "HFR"},
142
143 {"Line Out", NULL, "AUXL"},
144 {"Line Out", NULL, "AUXR"},
145
146 {"Vibrator", NULL, "VIBRAL"},
147 {"Vibrator", NULL, "VIBRAR"},
148
149 /* Routings for inputs */
150 {"HSMIC", NULL, "Headset Mic"},
151 {"Headset Mic", NULL, "Headset Mic Bias"},
152
153 {"MAINMIC", NULL, "Main Handset Mic"},
154 {"Main Handset Mic", NULL, "Main Mic Bias"},
155
156 {"SUBMIC", NULL, "Sub Handset Mic"},
157 {"Sub Handset Mic", NULL, "Main Mic Bias"},
158
159 {"AFML", NULL, "Line In"},
160 {"AFMR", NULL, "Line In"},
161};
162
163static inline void twl6040_disconnect_pin(struct snd_soc_dapm_context *dapm,
164 int connected, char *pin)
165{
166 if (!connected)
167 snd_soc_dapm_disable_pin(dapm, pin);
168}
169
170static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime *rtd)
171{
172 struct snd_soc_codec *codec = rtd->codec;
173 struct snd_soc_card *card = codec->card;
174 struct snd_soc_dapm_context *dapm = &codec->dapm;
175 struct omap_abe_twl6040_data *pdata = dev_get_platdata(card->dev);
176 int hs_trim;
177 int ret = 0;
178
179 /* Disable not connected paths if not used */
180 twl6040_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");
181 twl6040_disconnect_pin(dapm, pdata->has_hf, "Ext Spk");
182 twl6040_disconnect_pin(dapm, pdata->has_ep, "Earphone Spk");
183 twl6040_disconnect_pin(dapm, pdata->has_aux, "Line Out");
184 twl6040_disconnect_pin(dapm, pdata->has_vibra, "Vinrator");
185 twl6040_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");
186 twl6040_disconnect_pin(dapm, pdata->has_mainmic, "Main Handset Mic");
187 twl6040_disconnect_pin(dapm, pdata->has_submic, "Sub Handset Mic");
188 twl6040_disconnect_pin(dapm, pdata->has_afm, "Line In");
189
190 /*
191 * Configure McPDM offset cancellation based on the HSOTRIM value from
192 * twl6040.
193 */
194 hs_trim = twl6040_get_trim_value(codec, TWL6040_TRIM_HSOTRIM);
195 omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim),
196 TWL6040_HSF_TRIM_RIGHT(hs_trim));
197
198 /* Headset jack detection only if it is supported */
199 if (pdata->jack_detection) {
200 ret = snd_soc_jack_new(codec, "Headset Jack",
201 SND_JACK_HEADSET, &hs_jack);
202 if (ret)
203 return ret;
204
205 ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
206 hs_jack_pins);
207 twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
208 }
209
210 return ret;
211}
212
213static const struct snd_soc_dapm_widget dmic_dapm_widgets[] = {
214 SND_SOC_DAPM_MIC("Digital Mic", NULL),
215};
216
217static const struct snd_soc_dapm_route dmic_audio_map[] = {
218 {"DMic", NULL, "Digital Mic"},
219 {"Digital Mic", NULL, "Digital Mic1 Bias"},
220};
221
222static int omap_abe_dmic_init(struct snd_soc_pcm_runtime *rtd)
223{
224 struct snd_soc_codec *codec = rtd->codec;
225 struct snd_soc_dapm_context *dapm = &codec->dapm;
226 int ret;
227
228 ret = snd_soc_dapm_new_controls(dapm, dmic_dapm_widgets,
229 ARRAY_SIZE(dmic_dapm_widgets));
230 if (ret)
231 return ret;
232
233 return snd_soc_dapm_add_routes(dapm, dmic_audio_map,
234 ARRAY_SIZE(dmic_audio_map));
235}
236
237/* Digital audio interface glue - connects codec <--> CPU */
238static struct snd_soc_dai_link twl6040_dmic_dai[] = {
239 {
240 .name = "TWL6040",
241 .stream_name = "TWL6040",
242 .cpu_dai_name = "omap-mcpdm",
243 .codec_dai_name = "twl6040-legacy",
244 .platform_name = "omap-pcm-audio",
245 .codec_name = "twl6040-codec",
246 .init = omap_abe_twl6040_init,
247 .ops = &omap_abe_ops,
248 },
249 {
250 .name = "DMIC",
251 .stream_name = "DMIC Capture",
252 .cpu_dai_name = "omap-dmic",
253 .codec_dai_name = "dmic-hifi",
254 .platform_name = "omap-pcm-audio",
255 .codec_name = "dmic-codec",
256 .init = omap_abe_dmic_init,
257 .ops = &omap_abe_dmic_ops,
258 },
259};
260
261static struct snd_soc_dai_link twl6040_only_dai[] = {
262 {
263 .name = "TWL6040",
264 .stream_name = "TWL6040",
265 .cpu_dai_name = "omap-mcpdm",
266 .codec_dai_name = "twl6040-legacy",
267 .platform_name = "omap-pcm-audio",
268 .codec_name = "twl6040-codec",
269 .init = omap_abe_twl6040_init,
270 .ops = &omap_abe_ops,
271 },
272};
273
274/* Audio machine driver */
275static struct snd_soc_card omap_abe_card = {
276 .owner = THIS_MODULE,
277
278 .dapm_widgets = twl6040_dapm_widgets,
279 .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
280 .dapm_routes = audio_map,
281 .num_dapm_routes = ARRAY_SIZE(audio_map),
282};
283
284static __devinit int omap_abe_probe(struct platform_device *pdev)
285{
286 struct omap_abe_twl6040_data *pdata = dev_get_platdata(&pdev->dev);
287 struct snd_soc_card *card = &omap_abe_card;
288 int ret;
289
290 card->dev = &pdev->dev;
291
292 if (!pdata) {
293 dev_err(&pdev->dev, "Missing pdata\n");
294 return -ENODEV;
295 }
296
297 if (pdata->card_name) {
298 card->name = pdata->card_name;
299 } else {
300 dev_err(&pdev->dev, "Card name is not provided\n");
301 return -ENODEV;
302 }
303
304 if (!pdata->mclk_freq) {
305 dev_err(&pdev->dev, "MCLK frequency missing\n");
306 return -ENODEV;
307 }
308
309 if (pdata->has_dmic) {
310 card->dai_link = twl6040_dmic_dai;
311 card->num_links = ARRAY_SIZE(twl6040_dmic_dai);
312 } else {
313 card->dai_link = twl6040_only_dai;
314 card->num_links = ARRAY_SIZE(twl6040_only_dai);
315 }
316
317 ret = snd_soc_register_card(card);
318 if (ret)
319 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
320 ret);
321
322 return ret;
323}
324
325static int __devexit omap_abe_remove(struct platform_device *pdev)
326{
327 struct snd_soc_card *card = platform_get_drvdata(pdev);
328
329 snd_soc_unregister_card(card);
330
331 return 0;
332}
333
334static struct platform_driver omap_abe_driver = {
335 .driver = {
336 .name = "omap-abe-twl6040",
337 .owner = THIS_MODULE,
338 .pm = &snd_soc_pm_ops,
339 },
340 .probe = omap_abe_probe,
341 .remove = __devexit_p(omap_abe_remove),
342};
343
344module_platform_driver(omap_abe_driver);
345
346MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
347MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec");
348MODULE_LICENSE("GPL");
349MODULE_ALIAS("platform:omap-abe-twl6040");