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Misael Lopez Cruz44515822008-11-24 22:21:23 -06001/*
2 * sdp3430.c -- SoC audio for TI OMAP3430 SDP
3 *
4 * Author: Misael Lopez Cruz <x0052729@ti.com>
5 *
6 * Based on:
7 * Author: Steve Sakoman <steve@sakoman.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 *
23 */
24
25#include <linux/clk.h>
26#include <linux/platform_device.h>
Balaji T Kebeb53e2009-12-15 20:09:02 +053027#include <linux/i2c/twl.h>
Misael Lopez Cruz44515822008-11-24 22:21:23 -060028#include <sound/core.h>
29#include <sound/pcm.h>
30#include <sound/soc.h>
Lopez Cruz, Misaelde0b9882009-03-05 11:32:31 -060031#include <sound/jack.h>
Misael Lopez Cruz44515822008-11-24 22:21:23 -060032
33#include <asm/mach-types.h>
34#include <mach/hardware.h>
35#include <mach/gpio.h>
Tony Lindgrence491cf2009-10-20 09:40:47 -070036#include <plat/mcbsp.h>
Misael Lopez Cruz44515822008-11-24 22:21:23 -060037
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000038/* Register descriptions for twl4030 codec part */
Peter Ujfalusi57fe7252011-05-31 12:02:49 +030039#include <linux/mfd/twl4030-audio.h>
Paul Gortmakerda155d52011-07-15 12:38:28 -040040#include <linux/module.h>
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000041
Misael Lopez Cruz44515822008-11-24 22:21:23 -060042#include "omap-mcbsp.h"
43#include "omap-pcm.h"
Misael Lopez Cruz44515822008-11-24 22:21:23 -060044
Candelaria Villareal, Jorge30cd0c42009-08-25 10:13:25 -050045/* TWL4030 PMBR1 Register */
46#define TWL4030_INTBR_PMBR1 0x0D
47/* TWL4030 PMBR1 Register GPIO6 mux bit */
48#define TWL4030_GPIO6_PWM0_MUTE(value) (value << 2)
Candelaria Villareal, Jorgec5910a72009-07-14 20:04:08 -050049
Lopez Cruz, Misael77dd7e12009-03-12 21:45:27 -050050static struct snd_soc_card snd_soc_sdp3430;
51
Misael Lopez Cruz44515822008-11-24 22:21:23 -060052static int sdp3430_hw_params(struct snd_pcm_substream *substream,
53 struct snd_pcm_hw_params *params)
54{
55 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000056 struct snd_soc_dai *codec_dai = rtd->codec_dai;
Misael Lopez Cruz44515822008-11-24 22:21:23 -060057 int ret;
58
Misael Lopez Cruz44515822008-11-24 22:21:23 -060059 /* Set the codec system clock for DAC and ADC */
60 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
61 SND_SOC_CLOCK_IN);
62 if (ret < 0) {
63 printk(KERN_ERR "can't set codec system clock\n");
64 return ret;
65 }
66
67 return 0;
68}
69
70static struct snd_soc_ops sdp3430_ops = {
71 .hw_params = sdp3430_hw_params,
72};
73
Lopez Cruz, Misael77dd7e12009-03-12 21:45:27 -050074/* Headset jack */
75static struct snd_soc_jack hs_jack;
76
77/* Headset jack detection DAPM pins */
78static struct snd_soc_jack_pin hs_jack_pins[] = {
79 {
Lopez Cruz, Misael63208772009-03-19 01:07:34 -050080 .pin = "Headset Mic",
81 .mask = SND_JACK_MICROPHONE,
82 },
83 {
84 .pin = "Headset Stereophone",
85 .mask = SND_JACK_HEADPHONE,
Lopez Cruz, Misael77dd7e12009-03-12 21:45:27 -050086 },
87};
88
89/* Headset jack detection gpios */
90static struct snd_soc_jack_gpio hs_jack_gpios[] = {
91 {
92 .gpio = (OMAP_MAX_GPIO_LINES + 2),
93 .name = "hsdet-gpio",
94 .report = SND_JACK_HEADSET,
95 .debounce_time = 200,
96 },
97};
98
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -060099/* SDP3430 machine DAPM */
100static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
101 SND_SOC_DAPM_MIC("Ext Mic", NULL),
102 SND_SOC_DAPM_SPK("Ext Spk", NULL),
Lopez Cruz, Misael63208772009-03-19 01:07:34 -0500103 SND_SOC_DAPM_MIC("Headset Mic", NULL),
104 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600105};
106
107static const struct snd_soc_dapm_route audio_map[] = {
108 /* External Mics: MAINMIC, SUBMIC with bias*/
109 {"MAINMIC", NULL, "Mic Bias 1"},
110 {"SUBMIC", NULL, "Mic Bias 2"},
111 {"Mic Bias 1", NULL, "Ext Mic"},
112 {"Mic Bias 2", NULL, "Ext Mic"},
113
114 /* External Speakers: HFL, HFR */
115 {"Ext Spk", NULL, "HFL"},
116 {"Ext Spk", NULL, "HFR"},
117
Lopez Cruz, Misael63208772009-03-19 01:07:34 -0500118 /* Headset Mic: HSMIC with bias */
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600119 {"HSMIC", NULL, "Headset Mic Bias"},
Lopez Cruz, Misael63208772009-03-19 01:07:34 -0500120 {"Headset Mic Bias", NULL, "Headset Mic"},
121
122 /* Headset Stereophone (Headphone): HSOL, HSOR */
123 {"Headset Stereophone", NULL, "HSOL"},
124 {"Headset Stereophone", NULL, "HSOR"},
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600125};
126
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000127static int sdp3430_twl4030_init(struct snd_soc_pcm_runtime *rtd)
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600128{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000129 struct snd_soc_codec *codec = rtd->codec;
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200130 struct snd_soc_dapm_context *dapm = &codec->dapm;
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600131 int ret;
132
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600133 /* SDP3430 connected pins */
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200134 snd_soc_dapm_enable_pin(dapm, "Ext Mic");
135 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
136 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
137 snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600138
139 /* TWL4030 not connected pins */
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200140 snd_soc_dapm_nc_pin(dapm, "AUXL");
141 snd_soc_dapm_nc_pin(dapm, "AUXR");
142 snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
143 snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
144 snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600145
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200146 snd_soc_dapm_nc_pin(dapm, "OUTL");
147 snd_soc_dapm_nc_pin(dapm, "OUTR");
148 snd_soc_dapm_nc_pin(dapm, "EARPIECE");
149 snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
150 snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
151 snd_soc_dapm_nc_pin(dapm, "CARKITL");
152 snd_soc_dapm_nc_pin(dapm, "CARKITR");
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600153
Lopez Cruz, Misael77dd7e12009-03-12 21:45:27 -0500154 /* Headset jack detection */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000155 ret = snd_soc_jack_new(codec, "Headset Jack",
Lopez Cruz, Misael77dd7e12009-03-12 21:45:27 -0500156 SND_JACK_HEADSET, &hs_jack);
157 if (ret)
158 return ret;
159
160 ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
161 hs_jack_pins);
162 if (ret)
163 return ret;
164
165 ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
166 hs_jack_gpios);
Lopez Cruz, Misael979c0362009-03-04 11:39:07 -0600167
168 return ret;
169}
170
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000171static int sdp3430_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500172{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000173 struct snd_soc_codec *codec = rtd->codec;
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500174 unsigned short reg;
175
176 /* Enable voice interface */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000177 reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500178 reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000179 codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500180
181 return 0;
182}
183
184
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600185/* Digital audio interface glue - connects codec <--> CPU */
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500186static struct snd_soc_dai_link sdp3430_dai[] = {
187 {
188 .name = "TWL4030 I2S",
189 .stream_name = "TWL4030 Audio",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000190 .cpu_dai_name = "omap-mcbsp-dai.1",
191 .codec_dai_name = "twl4030-hifi",
192 .platform_name = "omap-pcm-audio",
193 .codec_name = "twl4030-codec",
Jarkko Nikulacf9feff2011-09-30 16:07:45 +0300194 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
195 SND_SOC_DAIFMT_CBM_CFM,
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500196 .init = sdp3430_twl4030_init,
197 .ops = &sdp3430_ops,
198 },
199 {
200 .name = "TWL4030 PCM",
201 .stream_name = "TWL4030 Voice",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000202 .cpu_dai_name = "omap-mcbsp-dai.2",
203 .codec_dai_name = "twl4030-voice",
204 .platform_name = "omap-pcm-audio",
205 .codec_name = "twl4030-codec",
Jarkko Nikulacf9feff2011-09-30 16:07:45 +0300206 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
207 SND_SOC_DAIFMT_CBM_CFM,
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500208 .init = sdp3430_twl4030_voice_init,
Jarkko Nikulaa3c6dac2011-09-30 16:07:46 +0300209 .ops = &sdp3430_ops,
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500210 },
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600211};
212
213/* Audio machine driver */
Lopez Cruz, Misael272edb02009-02-10 02:05:07 -0600214static struct snd_soc_card snd_soc_sdp3430 = {
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600215 .name = "SDP3430",
Lopez Cruz, Misael11a72812009-05-18 11:53:04 -0500216 .dai_link = sdp3430_dai,
217 .num_links = ARRAY_SIZE(sdp3430_dai),
Peter Ujfalusif8cf1492011-10-10 15:34:12 +0300218
219 .dapm_widgets = sdp3430_twl4030_dapm_widgets,
220 .num_dapm_widgets = ARRAY_SIZE(sdp3430_twl4030_dapm_widgets),
221 .dapm_routes = audio_map,
222 .num_dapm_routes = ARRAY_SIZE(audio_map),
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600223};
224
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600225static struct platform_device *sdp3430_snd_device;
226
227static int __init sdp3430_soc_init(void)
228{
229 int ret;
Candelaria Villareal, Jorge30cd0c42009-08-25 10:13:25 -0500230 u8 pin_mux;
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600231
Jarkko Nikulaec588ae2010-10-06 16:47:26 +0300232 if (!machine_is_omap_3430sdp())
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600233 return -ENODEV;
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600234 printk(KERN_INFO "SDP3430 SoC init\n");
235
236 sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
237 if (!sdp3430_snd_device) {
238 printk(KERN_ERR "Platform device allocation failed\n");
239 return -ENOMEM;
240 }
241
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000242 platform_set_drvdata(sdp3430_snd_device, &snd_soc_sdp3430);
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600243
Candelaria Villareal, Jorgec5910a72009-07-14 20:04:08 -0500244 /* Set TWL4030 GPIO6 as EXTMUTE signal */
Balaji T Kebeb53e2009-12-15 20:09:02 +0530245 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
Candelaria Villareal, Jorge30cd0c42009-08-25 10:13:25 -0500246 TWL4030_INTBR_PMBR1);
247 pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
248 pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
Balaji T Kebeb53e2009-12-15 20:09:02 +0530249 twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
Candelaria Villareal, Jorge30cd0c42009-08-25 10:13:25 -0500250 TWL4030_INTBR_PMBR1);
Candelaria Villareal, Jorgec5910a72009-07-14 20:04:08 -0500251
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600252 ret = platform_device_add(sdp3430_snd_device);
253 if (ret)
254 goto err1;
255
Lopez Cruz, Misael77dd7e12009-03-12 21:45:27 -0500256 return 0;
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600257
258err1:
259 printk(KERN_ERR "Unable to add platform device\n");
260 platform_device_put(sdp3430_snd_device);
261
262 return ret;
263}
264module_init(sdp3430_soc_init);
265
266static void __exit sdp3430_soc_exit(void)
267{
Lopez Cruz, Misaelde0b9882009-03-05 11:32:31 -0600268 snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
269 hs_jack_gpios);
270
Misael Lopez Cruz44515822008-11-24 22:21:23 -0600271 platform_device_unregister(sdp3430_snd_device);
272}
273module_exit(sdp3430_soc_exit);
274
275MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
276MODULE_DESCRIPTION("ALSA SoC SDP3430");
277MODULE_LICENSE("GPL");
278