OMAP: DSS2: DSI: Increase HS TX timeout
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / soc / omap / sdp4430.c
blob4ebbde6b565f4fbfe6beafc0ab7fadf799171777
1 /*
2 * sdp4430.c -- SoC audio for TI OMAP4430 SDP
4 * Author: Misael Lopez Cruz <x0052729@ti.com>
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.
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.
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
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>
29 #include <asm/mach-types.h>
30 #include <plat/hardware.h>
31 #include <plat/mux.h>
33 #include "mcpdm.h"
34 #include "omap-mcpdm.h"
35 #include "omap-pcm.h"
36 #include "../codecs/twl6040.h"
38 static int twl6040_power_mode;
40 static int sdp4430_hw_params(struct snd_pcm_substream *substream,
41 struct snd_pcm_hw_params *params)
43 struct snd_soc_pcm_runtime *rtd = substream->private_data;
44 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
45 int clk_id, freq;
46 int ret;
48 if (twl6040_power_mode) {
49 clk_id = TWL6040_SYSCLK_SEL_HPPLL;
50 freq = 38400000;
51 } else {
52 clk_id = TWL6040_SYSCLK_SEL_LPPLL;
53 freq = 32768;
56 /* set the codec mclk */
57 ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
58 SND_SOC_CLOCK_IN);
59 if (ret) {
60 printk(KERN_ERR "can't set codec system clock\n");
61 return ret;
65 static struct snd_soc_ops sdp4430_ops = {
66 .hw_params = sdp4430_hw_params,
69 static int sdp4430_get_power_mode(struct snd_kcontrol *kcontrol,
70 struct snd_ctl_elem_value *ucontrol)
72 ucontrol->value.integer.value[0] = twl6040_power_mode;
73 return 0;
76 static int sdp4430_set_power_mode(struct snd_kcontrol *kcontrol,
77 struct snd_ctl_elem_value *ucontrol)
79 if (twl6040_power_mode == ucontrol->value.integer.value[0])
80 return 0;
82 twl6040_power_mode = ucontrol->value.integer.value[0];
84 return 1;
87 static const char *power_texts[] = {"Low-Power", "High-Performance"};
89 static const struct soc_enum sdp4430_enum[] = {
90 SOC_ENUM_SINGLE_EXT(2, power_texts),
93 static const struct snd_kcontrol_new sdp4430_controls[] = {
94 SOC_ENUM_EXT("TWL6040 Power Mode", sdp4430_enum[0],
95 sdp4430_get_power_mode, sdp4430_set_power_mode),
98 /* SDP4430 machine DAPM */
99 static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
100 SND_SOC_DAPM_MIC("Ext Mic", NULL),
101 SND_SOC_DAPM_SPK("Ext Spk", NULL),
102 SND_SOC_DAPM_MIC("Headset Mic", NULL),
103 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
104 SND_SOC_DAPM_SPK("Earphone Spk", NULL),
107 static const struct snd_soc_dapm_route audio_map[] = {
108 /* External Mics: MAINMIC, SUBMIC with bias*/
109 {"MAINMIC", NULL, "Main Mic Bias"},
110 {"SUBMIC", NULL, "Main Mic Bias"},
111 {"Main Mic Bias", NULL, "Ext Mic"},
113 /* External Speakers: HFL, HFR */
114 {"Ext Spk", NULL, "HFL"},
115 {"Ext Spk", NULL, "HFR"},
117 /* Headset Mic: HSMIC with bias */
118 {"HSMIC", NULL, "Headset Mic Bias"},
119 {"Headset Mic Bias", NULL, "Headset Mic"},
121 /* Headset Stereophone (Headphone): HSOL, HSOR */
122 {"Headset Stereophone", NULL, "HSOL"},
123 {"Headset Stereophone", NULL, "HSOR"},
125 /* Earphone speaker */
126 {"Earphone Spk", NULL, "EP"},
129 static int sdp4430_twl6040_init(struct snd_soc_codec *codec)
131 int ret;
133 /* Add SDP4430 specific controls */
134 ret = snd_soc_add_controls(codec, sdp4430_controls,
135 ARRAY_SIZE(sdp4430_controls));
136 if (ret)
137 return ret;
139 /* Add SDP4430 specific widgets */
140 ret = snd_soc_dapm_new_controls(codec, sdp4430_twl6040_dapm_widgets,
141 ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
142 if (ret)
143 return ret;
145 /* Set up SDP4430 specific audio path audio_map */
146 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
148 /* SDP4430 connected pins */
149 snd_soc_dapm_enable_pin(codec, "Ext Mic");
150 snd_soc_dapm_enable_pin(codec, "Ext Spk");
151 snd_soc_dapm_enable_pin(codec, "Headset Mic");
152 snd_soc_dapm_enable_pin(codec, "Headset Stereophone");
154 /* TWL6040 not connected pins */
155 snd_soc_dapm_nc_pin(codec, "AFML");
156 snd_soc_dapm_nc_pin(codec, "AFMR");
158 ret = snd_soc_dapm_sync(codec);
160 return ret;
163 /* Digital audio interface glue - connects codec <--> CPU */
164 static struct snd_soc_dai_link sdp4430_dai = {
165 .name = "TWL6040",
166 .stream_name = "TWL6040",
167 .cpu_dai = &omap_mcpdm_dai,
168 .codec_dai = &twl6040_dai,
169 .init = sdp4430_twl6040_init,
170 .ops = &sdp4430_ops,
173 /* Audio machine driver */
174 static struct snd_soc_card snd_soc_sdp4430 = {
175 .name = "SDP4430",
176 .platform = &omap_soc_platform,
177 .dai_link = &sdp4430_dai,
178 .num_links = 1,
181 /* Audio subsystem */
182 static struct snd_soc_device sdp4430_snd_devdata = {
183 .card = &snd_soc_sdp4430,
184 .codec_dev = &soc_codec_dev_twl6040,
187 static struct platform_device *sdp4430_snd_device;
189 static int __init sdp4430_soc_init(void)
191 int ret;
193 if (!machine_is_omap_4430sdp()) {
194 pr_debug("Not SDP4430!\n");
195 return -ENODEV;
197 printk(KERN_INFO "SDP4430 SoC init\n");
199 sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
200 if (!sdp4430_snd_device) {
201 printk(KERN_ERR "Platform device allocation failed\n");
202 return -ENOMEM;
205 platform_set_drvdata(sdp4430_snd_device, &sdp4430_snd_devdata);
206 sdp4430_snd_devdata.dev = &sdp4430_snd_device->dev;
208 ret = platform_device_add(sdp4430_snd_device);
209 if (ret)
210 goto err;
212 /* Codec starts in HP mode */
213 twl6040_power_mode = 1;
215 return 0;
217 err:
218 printk(KERN_ERR "Unable to add platform device\n");
219 platform_device_put(sdp4430_snd_device);
220 return ret;
222 module_init(sdp4430_soc_init);
224 static void __exit sdp4430_soc_exit(void)
226 platform_device_unregister(sdp4430_snd_device);
228 module_exit(sdp4430_soc_exit);
230 MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
231 MODULE_DESCRIPTION("ALSA SoC SDP4430");
232 MODULE_LICENSE("GPL");