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df205936 LCM |
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 | |
f0fba2ad LG |
35 | /* Register descriptions for twl4030 codec part */ |
36 | #include <linux/mfd/twl4030-codec.h> | |
37 | ||
df205936 LCM |
38 | #include "omap-mcbsp.h" |
39 | #include "omap-pcm.h" | |
df205936 | 40 | |
1b6ebdd7 | 41 | #define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15) |
df205936 LCM |
42 | |
43 | static 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; | |
f0fba2ad LG |
47 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
48 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
df205936 LCM |
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 | ||
82 | static struct snd_soc_ops zoom2_ops = { | |
83 | .hw_params = zoom2_hw_params, | |
84 | }; | |
85 | ||
86 | static 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; | |
f0fba2ad LG |
90 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
91 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
df205936 LCM |
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); |
df205936 LCM |
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 | ||
125 | static struct snd_soc_ops zoom2_voice_ops = { | |
126 | .hw_params = zoom2_hw_voice_params, | |
127 | }; | |
128 | ||
129 | /* Zoom2 machine DAPM */ | |
130 | static 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 | ||
138 | static 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 | 162 | static 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; |
df205936 LCM |
166 | int ret; |
167 | ||
168 | /* Add Zoom2 specific widgets */ | |
ce6120cc | 169 | ret = snd_soc_dapm_new_controls(dapm, zoom2_twl4030_dapm_widgets, |
df205936 LCM |
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)); |
df205936 LCM |
176 | |
177 | /* Zoom2 connected pins */ | |
ce6120cc LG |
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"); | |
df205936 LCM |
183 | |
184 | /* TWL4030 not connected pins */ | |
ce6120cc LG |
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); | |
df205936 LCM |
195 | |
196 | return ret; | |
197 | } | |
198 | ||
f0fba2ad | 199 | static int zoom2_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd) |
df205936 | 200 | { |
f0fba2ad | 201 | struct snd_soc_codec *codec = rtd->codec; |
df205936 LCM |
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); |
df205936 LCM |
208 | |
209 | return 0; | |
210 | } | |
211 | ||
212 | /* Digital audio interface glue - connects codec <--> CPU */ | |
213 | static struct snd_soc_dai_link zoom2_dai[] = { | |
214 | { | |
215 | .name = "TWL4030 I2S", | |
216 | .stream_name = "TWL4030 Audio", | |
f0fba2ad LG |
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", | |
df205936 LCM |
221 | .init = zoom2_twl4030_init, |
222 | .ops = &zoom2_ops, | |
223 | }, | |
224 | { | |
225 | .name = "TWL4030 PCM", | |
226 | .stream_name = "TWL4030 Voice", | |
f0fba2ad LG |
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", | |
df205936 LCM |
231 | .init = zoom2_twl4030_voice_init, |
232 | .ops = &zoom2_voice_ops, | |
233 | }, | |
234 | }; | |
235 | ||
236 | /* Audio machine driver */ | |
237 | static struct snd_soc_card snd_soc_zoom2 = { | |
238 | .name = "Zoom2", | |
df205936 LCM |
239 | .dai_link = zoom2_dai, |
240 | .num_links = ARRAY_SIZE(zoom2_dai), | |
241 | }; | |
242 | ||
df205936 LCM |
243 | static struct platform_device *zoom2_snd_device; |
244 | ||
245 | static int __init zoom2_soc_init(void) | |
246 | { | |
247 | int ret; | |
248 | ||
ec588ae6 | 249 | if (!machine_is_omap_zoom2()) |
df205936 | 250 | return -ENODEV; |
df205936 LCM |
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); |
df205936 LCM |
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 | ||
1b6ebdd7 CVJ |
267 | BUG_ON(gpio_request(ZOOM2_HEADSET_EXTMUTE_GPIO, "ext_mute") < 0); |
268 | gpio_direction_output(ZOOM2_HEADSET_EXTMUTE_GPIO, 0); | |
269 | ||
df205936 LCM |
270 | return 0; |
271 | ||
272 | err1: | |
273 | printk(KERN_ERR "Unable to add platform device\n"); | |
274 | platform_device_put(zoom2_snd_device); | |
275 | ||
276 | return ret; | |
277 | } | |
278 | module_init(zoom2_soc_init); | |
279 | ||
280 | static void __exit zoom2_soc_exit(void) | |
281 | { | |
282 | gpio_free(ZOOM2_HEADSET_MUX_GPIO); | |
1b6ebdd7 | 283 | gpio_free(ZOOM2_HEADSET_EXTMUTE_GPIO); |
df205936 LCM |
284 | |
285 | platform_device_unregister(zoom2_snd_device); | |
286 | } | |
287 | module_exit(zoom2_soc_exit); | |
288 | ||
289 | MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>"); | |
290 | MODULE_DESCRIPTION("ALSA SoC Zoom2"); | |
291 | MODULE_LICENSE("GPL"); | |
292 |