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Jarkko Nikula2e747962008-04-25 13:55:19 +02001/*
2 * n810.c -- SoC audio for Nokia N810
3 *
4 * Copyright (C) 2008 Nokia Corporation
5 *
Jarkko Nikula7ec41ee2011-08-11 15:44:57 +03006 * Contact: Jarkko Nikula <jarkko.nikula@bitmer.com>
Jarkko Nikula2e747962008-04-25 13:55:19 +02007 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24#include <linux/clk.h>
Ben Dooksaa6b9042009-08-20 22:50:42 +010025#include <linux/i2c.h>
Jarkko Nikula2e747962008-04-25 13:55:19 +020026#include <linux/platform_device.h>
27#include <sound/core.h>
28#include <sound/pcm.h>
29#include <sound/soc.h>
Jarkko Nikula2e747962008-04-25 13:55:19 +020030
31#include <asm/mach-types.h>
Jarkko Nikulaf99a6332008-05-15 11:01:36 +020032#include <linux/gpio.h>
Paul Gortmakerda155d52011-07-15 12:38:28 -040033#include <linux/module.h>
Arnd Bergmann22037472012-08-24 15:21:06 +020034#include <linux/platform_data/asoc-ti-mcbsp.h>
Jarkko Nikula2e747962008-04-25 13:55:19 +020035
36#include "omap-mcbsp.h"
Jarkko Nikula2e747962008-04-25 13:55:19 +020037
Jarkko Nikulaf99a6332008-05-15 11:01:36 +020038#define N810_HEADSET_AMP_GPIO 10
39#define N810_SPEAKER_AMP_GPIO 101
Jarkko Nikula2e747962008-04-25 13:55:19 +020040
Jarkko Nikulaf8d5fc92009-03-18 16:46:54 +020041enum {
42 N810_JACK_DISABLED,
43 N810_JACK_HP,
44 N810_JACK_HS,
45 N810_JACK_MIC,
46};
47
Jarkko Nikula2e747962008-04-25 13:55:19 +020048static struct clk *sys_clkout2;
49static struct clk *sys_clkout2_src;
50static struct clk *func96m_clk;
51
52static int n810_spk_func;
53static int n810_jack_func;
Jarkko Nikula90b9e472008-06-25 14:58:47 +030054static int n810_dmic_func;
Jarkko Nikula2e747962008-04-25 13:55:19 +020055
Liam Girdwood022658b2012-02-03 17:43:09 +000056static void n810_ext_control(struct snd_soc_dapm_context *dapm)
Jarkko Nikula2e747962008-04-25 13:55:19 +020057{
Jarkko Nikulaf8d5fc92009-03-18 16:46:54 +020058 int hp = 0, line1l = 0;
59
60 switch (n810_jack_func) {
61 case N810_JACK_HS:
62 line1l = 1;
63 case N810_JACK_HP:
64 hp = 1;
65 break;
66 case N810_JACK_MIC:
67 line1l = 1;
68 break;
69 }
70
Charles Keepax43cbbc32014-02-18 15:22:23 +000071 snd_soc_dapm_mutex_lock(dapm);
72
Liam Girdwooda5302182008-07-07 13:35:17 +010073 if (n810_spk_func)
Charles Keepax43cbbc32014-02-18 15:22:23 +000074 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
Liam Girdwooda5302182008-07-07 13:35:17 +010075 else
Charles Keepax43cbbc32014-02-18 15:22:23 +000076 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
Jarkko Nikula2e747962008-04-25 13:55:19 +020077
Jarkko Nikulaf8d5fc92009-03-18 16:46:54 +020078 if (hp)
Charles Keepax43cbbc32014-02-18 15:22:23 +000079 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
Liam Girdwooda5302182008-07-07 13:35:17 +010080 else
Charles Keepax43cbbc32014-02-18 15:22:23 +000081 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
Jarkko Nikulaf8d5fc92009-03-18 16:46:54 +020082 if (line1l)
Charles Keepax43cbbc32014-02-18 15:22:23 +000083 snd_soc_dapm_enable_pin_unlocked(dapm, "LINE1L");
Jarkko Nikulaf8d5fc92009-03-18 16:46:54 +020084 else
Charles Keepax43cbbc32014-02-18 15:22:23 +000085 snd_soc_dapm_disable_pin_unlocked(dapm, "LINE1L");
Liam Girdwooda5302182008-07-07 13:35:17 +010086
87 if (n810_dmic_func)
Charles Keepax43cbbc32014-02-18 15:22:23 +000088 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
Liam Girdwooda5302182008-07-07 13:35:17 +010089 else
Charles Keepax43cbbc32014-02-18 15:22:23 +000090 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
Liam Girdwooda5302182008-07-07 13:35:17 +010091
Charles Keepax43cbbc32014-02-18 15:22:23 +000092 snd_soc_dapm_sync_unlocked(dapm);
93
94 snd_soc_dapm_mutex_unlock(dapm);
Jarkko Nikula2e747962008-04-25 13:55:19 +020095}
96
97static int n810_startup(struct snd_pcm_substream *substream)
98{
Jarkko Nikula0be43052008-11-25 12:45:08 +020099 struct snd_pcm_runtime *runtime = substream->runtime;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200100 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200101
Lars-Peter Clausen8dfabe72015-10-18 15:39:26 +0200102 snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
Jarkko Nikula0be43052008-11-25 12:45:08 +0200103
Lars-Peter Clausend4bdace2015-04-11 10:47:57 +0200104 n810_ext_control(&rtd->card->dapm);
Jarkko Nikulafb28a752013-11-30 18:05:28 +0200105 return clk_prepare_enable(sys_clkout2);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200106}
107
108static void n810_shutdown(struct snd_pcm_substream *substream)
109{
Jarkko Nikulafb28a752013-11-30 18:05:28 +0200110 clk_disable_unprepare(sys_clkout2);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200111}
112
113static int n810_hw_params(struct snd_pcm_substream *substream,
114 struct snd_pcm_hw_params *params)
115{
116 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000117 struct snd_soc_dai *codec_dai = rtd->codec_dai;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200118 int err;
119
Jarkko Nikula2e747962008-04-25 13:55:19 +0200120 /* Set the codec system clock for DAC and ADC */
Liam Girdwood64105cf2008-07-08 13:19:18 +0100121 err = snd_soc_dai_set_sysclk(codec_dai, 0, 12000000,
Jarkko Nikula2e747962008-04-25 13:55:19 +0200122 SND_SOC_CLOCK_IN);
123
124 return err;
125}
126
Bhumika Goyal2261cf12017-03-18 19:34:11 +0530127static const struct snd_soc_ops n810_ops = {
Jarkko Nikula2e747962008-04-25 13:55:19 +0200128 .startup = n810_startup,
129 .hw_params = n810_hw_params,
130 .shutdown = n810_shutdown,
131};
132
133static int n810_get_spk(struct snd_kcontrol *kcontrol,
134 struct snd_ctl_elem_value *ucontrol)
135{
Takashi Iwaidd905332016-02-29 17:26:21 +0100136 ucontrol->value.enumerated.item[0] = n810_spk_func;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200137
138 return 0;
139}
140
141static int n810_set_spk(struct snd_kcontrol *kcontrol,
142 struct snd_ctl_elem_value *ucontrol)
143{
Liam Girdwood022658b2012-02-03 17:43:09 +0000144 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200145
Takashi Iwaidd905332016-02-29 17:26:21 +0100146 if (n810_spk_func == ucontrol->value.enumerated.item[0])
Jarkko Nikula2e747962008-04-25 13:55:19 +0200147 return 0;
148
Takashi Iwaidd905332016-02-29 17:26:21 +0100149 n810_spk_func = ucontrol->value.enumerated.item[0];
Liam Girdwood022658b2012-02-03 17:43:09 +0000150 n810_ext_control(&card->dapm);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200151
152 return 1;
153}
154
155static int n810_get_jack(struct snd_kcontrol *kcontrol,
156 struct snd_ctl_elem_value *ucontrol)
157{
Takashi Iwaidd905332016-02-29 17:26:21 +0100158 ucontrol->value.enumerated.item[0] = n810_jack_func;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200159
160 return 0;
161}
162
163static int n810_set_jack(struct snd_kcontrol *kcontrol,
164 struct snd_ctl_elem_value *ucontrol)
165{
Liam Girdwood022658b2012-02-03 17:43:09 +0000166 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200167
Takashi Iwaidd905332016-02-29 17:26:21 +0100168 if (n810_jack_func == ucontrol->value.enumerated.item[0])
Jarkko Nikula2e747962008-04-25 13:55:19 +0200169 return 0;
170
Takashi Iwaidd905332016-02-29 17:26:21 +0100171 n810_jack_func = ucontrol->value.enumerated.item[0];
Liam Girdwood022658b2012-02-03 17:43:09 +0000172 n810_ext_control(&card->dapm);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200173
174 return 1;
175}
176
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300177static int n810_get_input(struct snd_kcontrol *kcontrol,
178 struct snd_ctl_elem_value *ucontrol)
179{
Takashi Iwaidd905332016-02-29 17:26:21 +0100180 ucontrol->value.enumerated.item[0] = n810_dmic_func;
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300181
182 return 0;
183}
184
185static int n810_set_input(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187{
Liam Girdwood022658b2012-02-03 17:43:09 +0000188 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300189
Takashi Iwaidd905332016-02-29 17:26:21 +0100190 if (n810_dmic_func == ucontrol->value.enumerated.item[0])
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300191 return 0;
192
Takashi Iwaidd905332016-02-29 17:26:21 +0100193 n810_dmic_func = ucontrol->value.enumerated.item[0];
Axel Lin625136e2012-02-10 14:54:37 +0800194 n810_ext_control(&card->dapm);
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300195
196 return 1;
197}
198
Jarkko Nikula2e747962008-04-25 13:55:19 +0200199static int n810_spk_event(struct snd_soc_dapm_widget *w,
200 struct snd_kcontrol *k, int event)
201{
202 if (SND_SOC_DAPM_EVENT_ON(event))
Jarkko Nikulaf99a6332008-05-15 11:01:36 +0200203 gpio_set_value(N810_SPEAKER_AMP_GPIO, 1);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200204 else
Jarkko Nikulaf99a6332008-05-15 11:01:36 +0200205 gpio_set_value(N810_SPEAKER_AMP_GPIO, 0);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200206
207 return 0;
208}
209
210static int n810_jack_event(struct snd_soc_dapm_widget *w,
211 struct snd_kcontrol *k, int event)
212{
213 if (SND_SOC_DAPM_EVENT_ON(event))
Jarkko Nikulaf99a6332008-05-15 11:01:36 +0200214 gpio_set_value(N810_HEADSET_AMP_GPIO, 1);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200215 else
Jarkko Nikulaf99a6332008-05-15 11:01:36 +0200216 gpio_set_value(N810_HEADSET_AMP_GPIO, 0);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200217
218 return 0;
219}
220
221static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
222 SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
223 SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300224 SND_SOC_DAPM_MIC("DMic", NULL),
Jarkko Nikula2e747962008-04-25 13:55:19 +0200225};
226
Mark Brown1a250592008-05-13 14:58:57 +0200227static const struct snd_soc_dapm_route audio_map[] = {
Jarkko Nikula2e747962008-04-25 13:55:19 +0200228 {"Headphone Jack", NULL, "HPLOUT"},
229 {"Headphone Jack", NULL, "HPROUT"},
230
231 {"Ext Spk", NULL, "LLOUT"},
232 {"Ext Spk", NULL, "RLOUT"},
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300233
Hebbar Gururajae2e8bfd2013-01-31 18:23:04 +0530234 {"DMic Rate 64", NULL, "Mic Bias"},
235 {"Mic Bias", NULL, "DMic"},
Jarkko Nikula2e747962008-04-25 13:55:19 +0200236};
237
238static const char *spk_function[] = {"Off", "On"};
Jarkko Nikulaf8d5fc92009-03-18 16:46:54 +0200239static const char *jack_function[] = {"Off", "Headphone", "Headset", "Mic"};
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300240static const char *input_function[] = {"ADC", "Digital Mic"};
Jarkko Nikula2e747962008-04-25 13:55:19 +0200241static const struct soc_enum n810_enum[] = {
Jarkko Nikula3c172792008-05-13 16:02:04 +0200242 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
243 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300244 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
Jarkko Nikula2e747962008-04-25 13:55:19 +0200245};
246
247static const struct snd_kcontrol_new aic33_n810_controls[] = {
248 SOC_ENUM_EXT("Speaker Function", n810_enum[0],
249 n810_get_spk, n810_set_spk),
250 SOC_ENUM_EXT("Jack Function", n810_enum[1],
251 n810_get_jack, n810_set_jack),
Jarkko Nikula90b9e472008-06-25 14:58:47 +0300252 SOC_ENUM_EXT("Input Select", n810_enum[2],
253 n810_get_input, n810_set_input),
Jarkko Nikula2e747962008-04-25 13:55:19 +0200254};
255
Jarkko Nikula2e747962008-04-25 13:55:19 +0200256/* Digital audio interface glue - connects codec <--> CPU */
257static struct snd_soc_dai_link n810_dai = {
258 .name = "TLV320AIC33",
259 .stream_name = "AIC33",
Peter Ujfalusi45656b42012-02-14 18:20:58 +0200260 .cpu_dai_name = "omap-mcbsp.2",
Peter Ujfalusi7f46b0b2014-04-16 15:46:25 +0300261 .platform_name = "omap-mcbsp.2",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000262 .codec_name = "tlv320aic3x-codec.2-0018",
263 .codec_dai_name = "tlv320aic3x-hifi",
Jarkko Nikulacf9feff2011-09-30 16:07:45 +0300264 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
265 SND_SOC_DAIFMT_CBM_CFM,
Jarkko Nikula2e747962008-04-25 13:55:19 +0200266 .ops = &n810_ops,
267};
268
269/* Audio machine driver */
Mark Brown87506542008-11-18 20:50:34 +0000270static struct snd_soc_card snd_soc_n810 = {
Jarkko Nikula2e747962008-04-25 13:55:19 +0200271 .name = "N810",
Axel Linb425b882011-12-22 11:08:59 +0800272 .owner = THIS_MODULE,
Jarkko Nikula2e747962008-04-25 13:55:19 +0200273 .dai_link = &n810_dai,
274 .num_links = 1,
Peter Ujfalusi8966c2d2011-10-10 15:34:10 +0300275
276 .controls = aic33_n810_controls,
277 .num_controls = ARRAY_SIZE(aic33_n810_controls),
278 .dapm_widgets = aic33_dapm_widgets,
279 .num_dapm_widgets = ARRAY_SIZE(aic33_dapm_widgets),
280 .dapm_routes = audio_map,
281 .num_dapm_routes = ARRAY_SIZE(audio_map),
Lars-Peter Clausen59c41d12015-04-11 10:47:58 +0200282 .fully_routed = true,
Jarkko Nikula2e747962008-04-25 13:55:19 +0200283};
284
Jarkko Nikula2e747962008-04-25 13:55:19 +0200285static struct platform_device *n810_snd_device;
286
287static int __init n810_soc_init(void)
288{
289 int err;
290 struct device *dev;
291
Aaro Koskinenea2787f2014-03-04 00:45:18 +0200292 if (!of_have_populated_dt() ||
293 (!of_machine_is_compatible("nokia,n810") &&
294 !of_machine_is_compatible("nokia,n810-wimax")))
Jarkko Nikula2e747962008-04-25 13:55:19 +0200295 return -ENODEV;
296
297 n810_snd_device = platform_device_alloc("soc-audio", -1);
298 if (!n810_snd_device)
299 return -ENOMEM;
300
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000301 platform_set_drvdata(n810_snd_device, &snd_soc_n810);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200302 err = platform_device_add(n810_snd_device);
303 if (err)
304 goto err1;
305
306 dev = &n810_snd_device->dev;
307
308 sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
309 if (IS_ERR(sys_clkout2_src)) {
310 dev_err(dev, "Could not get sys_clkout2_src clock\n");
Jarkko Nikulae7845392008-08-26 13:32:57 +0300311 err = PTR_ERR(sys_clkout2_src);
312 goto err2;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200313 }
314 sys_clkout2 = clk_get(dev, "sys_clkout2");
315 if (IS_ERR(sys_clkout2)) {
316 dev_err(dev, "Could not get sys_clkout2\n");
Jarkko Nikulae7845392008-08-26 13:32:57 +0300317 err = PTR_ERR(sys_clkout2);
318 goto err3;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200319 }
320 /*
321 * Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
322 * 96 MHz as its parent in order to get 12 MHz
323 */
324 func96m_clk = clk_get(dev, "func_96m_ck");
325 if (IS_ERR(func96m_clk)) {
326 dev_err(dev, "Could not get func 96M clock\n");
Jarkko Nikulae7845392008-08-26 13:32:57 +0300327 err = PTR_ERR(func96m_clk);
328 goto err4;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200329 }
330 clk_set_parent(sys_clkout2_src, func96m_clk);
331 clk_set_rate(sys_clkout2, 12000000);
332
Takashi Iwai96b61bc2013-11-05 18:40:02 +0100333 if (WARN_ON((gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0) ||
334 (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0))) {
335 err = -EINVAL;
336 goto err4;
337 }
Alexander Beregalovf4c17242009-04-12 05:04:43 +0400338
Jarkko Nikulaf99a6332008-05-15 11:01:36 +0200339 gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
340 gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
Jarkko Nikula2e747962008-04-25 13:55:19 +0200341
342 return 0;
Jarkko Nikulae7845392008-08-26 13:32:57 +0300343err4:
Jarkko Nikula2e747962008-04-25 13:55:19 +0200344 clk_put(sys_clkout2);
Jarkko Nikulae7845392008-08-26 13:32:57 +0300345err3:
346 clk_put(sys_clkout2_src);
347err2:
Jarkko Nikula2e747962008-04-25 13:55:19 +0200348 platform_device_del(n810_snd_device);
349err1:
350 platform_device_put(n810_snd_device);
351
352 return err;
Jarkko Nikula2e747962008-04-25 13:55:19 +0200353}
354
355static void __exit n810_soc_exit(void)
356{
Jarkko Nikulaf99a6332008-05-15 11:01:36 +0200357 gpio_free(N810_SPEAKER_AMP_GPIO);
358 gpio_free(N810_HEADSET_AMP_GPIO);
Jarkko Nikulae7845392008-08-26 13:32:57 +0300359 clk_put(sys_clkout2_src);
360 clk_put(sys_clkout2);
361 clk_put(func96m_clk);
Jarkko Nikulaf99a6332008-05-15 11:01:36 +0200362
Jarkko Nikula2e747962008-04-25 13:55:19 +0200363 platform_device_unregister(n810_snd_device);
364}
365
366module_init(n810_soc_init);
367module_exit(n810_soc_exit);
368
Jarkko Nikula7ec41ee2011-08-11 15:44:57 +0300369MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@bitmer.com>");
Jarkko Nikula2e747962008-04-25 13:55:19 +0200370MODULE_DESCRIPTION("ALSA SoC Nokia N810");
371MODULE_LICENSE("GPL");