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ASoC: Decouple DAPM from CODECs
[mirror_ubuntu-bionic-kernel.git] / sound / soc / omap / zoom2.c
CommitLineData
df205936
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1/*
2 * zoom2.c -- SoC audio for Zoom2
3 *
4 * Author: Misael Lopez Cruz <x0052729@ti.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 *
20 */
21
22#include <linux/clk.h>
23#include <linux/platform_device.h>
24#include <sound/core.h>
25#include <sound/pcm.h>
26#include <sound/soc.h>
27#include <sound/soc-dapm.h>
28
29#include <asm/mach-types.h>
30#include <mach/hardware.h>
31#include <mach/gpio.h>
f0fba2ad 32#include <mach/board-zoom.h>
ce491cf8 33#include <plat/mcbsp.h>
df205936 34
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LG
35/* Register descriptions for twl4030 codec part */
36#include <linux/mfd/twl4030-codec.h>
37
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38#include "omap-mcbsp.h"
39#include "omap-pcm.h"
df205936 40
1b6ebdd7 41#define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15)
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42
43static int zoom2_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;
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47 struct snd_soc_dai *codec_dai = rtd->codec_dai;
48 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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49 int ret;
50
51 /* Set codec DAI configuration */
52 ret = snd_soc_dai_set_fmt(codec_dai,
53 SND_SOC_DAIFMT_I2S |
54 SND_SOC_DAIFMT_NB_NF |
55 SND_SOC_DAIFMT_CBM_CFM);
56 if (ret < 0) {
57 printk(KERN_ERR "can't set codec DAI configuration\n");
58 return ret;
59 }
60
61 /* Set cpu DAI configuration */
62 ret = snd_soc_dai_set_fmt(cpu_dai,
63 SND_SOC_DAIFMT_I2S |
64 SND_SOC_DAIFMT_NB_NF |
65 SND_SOC_DAIFMT_CBM_CFM);
66 if (ret < 0) {
67 printk(KERN_ERR "can't set cpu DAI configuration\n");
68 return ret;
69 }
70
71 /* Set the codec system clock for DAC and ADC */
72 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
73 SND_SOC_CLOCK_IN);
74 if (ret < 0) {
75 printk(KERN_ERR "can't set codec system clock\n");
76 return ret;
77 }
78
79 return 0;
80}
81
82static struct snd_soc_ops zoom2_ops = {
83 .hw_params = zoom2_hw_params,
84};
85
86static int zoom2_hw_voice_params(struct snd_pcm_substream *substream,
87 struct snd_pcm_hw_params *params)
88{
89 struct snd_soc_pcm_runtime *rtd = substream->private_data;
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90 struct snd_soc_dai *codec_dai = rtd->codec_dai;
91 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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92 int ret;
93
94 /* Set codec DAI configuration */
95 ret = snd_soc_dai_set_fmt(codec_dai,
96 SND_SOC_DAIFMT_DSP_A |
97 SND_SOC_DAIFMT_IB_NF |
c264301c 98 SND_SOC_DAIFMT_CBM_CFM);
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99 if (ret) {
100 printk(KERN_ERR "can't set codec DAI configuration\n");
101 return ret;
102 }
103
104 /* Set cpu DAI configuration */
105 ret = snd_soc_dai_set_fmt(cpu_dai,
106 SND_SOC_DAIFMT_DSP_A |
107 SND_SOC_DAIFMT_IB_NF |
108 SND_SOC_DAIFMT_CBM_CFM);
109 if (ret < 0) {
110 printk(KERN_ERR "can't set cpu DAI configuration\n");
111 return ret;
112 }
113
114 /* Set the codec system clock for DAC and ADC */
115 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
116 SND_SOC_CLOCK_IN);
117 if (ret < 0) {
118 printk(KERN_ERR "can't set codec system clock\n");
119 return ret;
120 }
121
122 return 0;
123}
124
125static struct snd_soc_ops zoom2_voice_ops = {
126 .hw_params = zoom2_hw_voice_params,
127};
128
129/* Zoom2 machine DAPM */
130static const struct snd_soc_dapm_widget zoom2_twl4030_dapm_widgets[] = {
131 SND_SOC_DAPM_MIC("Ext Mic", NULL),
132 SND_SOC_DAPM_SPK("Ext Spk", NULL),
133 SND_SOC_DAPM_MIC("Headset Mic", NULL),
134 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
135 SND_SOC_DAPM_LINE("Aux In", NULL),
136};
137
138static const struct snd_soc_dapm_route audio_map[] = {
139 /* External Mics: MAINMIC, SUBMIC with bias*/
140 {"MAINMIC", NULL, "Mic Bias 1"},
141 {"SUBMIC", NULL, "Mic Bias 2"},
142 {"Mic Bias 1", NULL, "Ext Mic"},
143 {"Mic Bias 2", NULL, "Ext Mic"},
144
145 /* External Speakers: HFL, HFR */
146 {"Ext Spk", NULL, "HFL"},
147 {"Ext Spk", NULL, "HFR"},
148
149 /* Headset Stereophone: HSOL, HSOR */
150 {"Headset Stereophone", NULL, "HSOL"},
151 {"Headset Stereophone", NULL, "HSOR"},
152
153 /* Headset Mic: HSMIC with bias */
154 {"HSMIC", NULL, "Headset Mic Bias"},
155 {"Headset Mic Bias", NULL, "Headset Mic"},
156
157 /* Aux In: AUXL, AUXR */
158 {"Aux In", NULL, "AUXL"},
159 {"Aux In", NULL, "AUXR"},
160};
161
f0fba2ad 162static int zoom2_twl4030_init(struct snd_soc_pcm_runtime *rtd)
df205936 163{
f0fba2ad 164 struct snd_soc_codec *codec = rtd->codec;
ce6120cc 165 struct snd_soc_dapm_context *dapm = &codec->dapm;
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166 int ret;
167
168 /* Add Zoom2 specific widgets */
ce6120cc 169 ret = snd_soc_dapm_new_controls(dapm, zoom2_twl4030_dapm_widgets,
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170 ARRAY_SIZE(zoom2_twl4030_dapm_widgets));
171 if (ret)
172 return ret;
173
174 /* Set up Zoom2 specific audio path audio_map */
ce6120cc 175 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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176
177 /* Zoom2 connected pins */
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178 snd_soc_dapm_enable_pin(dapm, "Ext Mic");
179 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
180 snd_soc_dapm_enable_pin(dapm, "Headset Mic");
181 snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
182 snd_soc_dapm_enable_pin(dapm, "Aux In");
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183
184 /* TWL4030 not connected pins */
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185 snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
186 snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
187 snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
188 snd_soc_dapm_nc_pin(dapm, "EARPIECE");
189 snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
190 snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
191 snd_soc_dapm_nc_pin(dapm, "CARKITL");
192 snd_soc_dapm_nc_pin(dapm, "CARKITR");
193
194 ret = snd_soc_dapm_sync(dapm);
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195
196 return ret;
197}
198
f0fba2ad 199static int zoom2_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
df205936 200{
f0fba2ad 201 struct snd_soc_codec *codec = rtd->codec;
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202 unsigned short reg;
203
204 /* Enable voice interface */
f0fba2ad 205 reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
df205936 206 reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
f0fba2ad 207 codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
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208
209 return 0;
210}
211
212/* Digital audio interface glue - connects codec <--> CPU */
213static struct snd_soc_dai_link zoom2_dai[] = {
214 {
215 .name = "TWL4030 I2S",
216 .stream_name = "TWL4030 Audio",
f0fba2ad
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217 .cpu_dai_name = "omap-mcbsp-dai.1",
218 .codec_dai_name = "twl4030-hifi",
219 .platform_name = "omap-pcm-audio",
220 .codec_name = "twl4030-codec",
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221 .init = zoom2_twl4030_init,
222 .ops = &zoom2_ops,
223 },
224 {
225 .name = "TWL4030 PCM",
226 .stream_name = "TWL4030 Voice",
f0fba2ad
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227 .cpu_dai_name = "omap-mcbsp-dai.2",
228 .codec_dai_name = "twl4030-voice",
229 .platform_name = "omap-pcm-audio",
230 .codec_name = "twl4030-codec",
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231 .init = zoom2_twl4030_voice_init,
232 .ops = &zoom2_voice_ops,
233 },
234};
235
236/* Audio machine driver */
237static struct snd_soc_card snd_soc_zoom2 = {
238 .name = "Zoom2",
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239 .dai_link = zoom2_dai,
240 .num_links = ARRAY_SIZE(zoom2_dai),
241};
242
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243static struct platform_device *zoom2_snd_device;
244
245static int __init zoom2_soc_init(void)
246{
247 int ret;
248
ec588ae6 249 if (!machine_is_omap_zoom2())
df205936 250 return -ENODEV;
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251 printk(KERN_INFO "Zoom2 SoC init\n");
252
253 zoom2_snd_device = platform_device_alloc("soc-audio", -1);
254 if (!zoom2_snd_device) {
255 printk(KERN_ERR "Platform device allocation failed\n");
256 return -ENOMEM;
257 }
258
f0fba2ad 259 platform_set_drvdata(zoom2_snd_device, &snd_soc_zoom2);
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260 ret = platform_device_add(zoom2_snd_device);
261 if (ret)
262 goto err1;
263
264 BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0);
265 gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0);
266
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CVJ
267 BUG_ON(gpio_request(ZOOM2_HEADSET_EXTMUTE_GPIO, "ext_mute") < 0);
268 gpio_direction_output(ZOOM2_HEADSET_EXTMUTE_GPIO, 0);
269
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270 return 0;
271
272err1:
273 printk(KERN_ERR "Unable to add platform device\n");
274 platform_device_put(zoom2_snd_device);
275
276 return ret;
277}
278module_init(zoom2_soc_init);
279
280static void __exit zoom2_soc_exit(void)
281{
282 gpio_free(ZOOM2_HEADSET_MUX_GPIO);
1b6ebdd7 283 gpio_free(ZOOM2_HEADSET_EXTMUTE_GPIO);
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284
285 platform_device_unregister(zoom2_snd_device);
286}
287module_exit(zoom2_soc_exit);
288
289MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
290MODULE_DESCRIPTION("ALSA SoC Zoom2");
291MODULE_LICENSE("GPL");
292