forked from Minki/linux
fb34d3d505
Convert TWL6040 CODEC driver into a TWL6040 MFD child, it implies that MFD-level operations like register accesses, clock setting and power management are done through MFD APIs, not directly by CODEC driver anymore. To avoid conflicts with the other MFD child, vibrator registers are skipped in CODEC driver. Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
264 lines
6.6 KiB
C
264 lines
6.6 KiB
C
/*
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* sdp4430.c -- SoC audio for TI OMAP4430 SDP
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*
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* Author: Misael Lopez Cruz <x0052729@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/twl6040.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <asm/mach-types.h>
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#include <plat/hardware.h>
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#include <plat/mux.h>
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#include "mcpdm.h"
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#include "omap-pcm.h"
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#include "../codecs/twl6040.h"
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static int twl6040_power_mode;
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static int sdp4430_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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int clk_id, freq;
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int ret;
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if (twl6040_power_mode) {
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clk_id = TWL6040_SYSCLK_SEL_HPPLL;
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freq = 38400000;
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} else {
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clk_id = TWL6040_SYSCLK_SEL_LPPLL;
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freq = 32768;
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}
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/* set the codec mclk */
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ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
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SND_SOC_CLOCK_IN);
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if (ret) {
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printk(KERN_ERR "can't set codec system clock\n");
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return ret;
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}
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return ret;
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}
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static struct snd_soc_ops sdp4430_ops = {
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.hw_params = sdp4430_hw_params,
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};
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/* Headset jack */
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static struct snd_soc_jack hs_jack;
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/*Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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{
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.pin = "Headset Stereophone",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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static int sdp4430_get_power_mode(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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ucontrol->value.integer.value[0] = twl6040_power_mode;
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return 0;
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}
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static int sdp4430_set_power_mode(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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if (twl6040_power_mode == ucontrol->value.integer.value[0])
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return 0;
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twl6040_power_mode = ucontrol->value.integer.value[0];
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return 1;
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}
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static const char *power_texts[] = {"Low-Power", "High-Performance"};
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static const struct soc_enum sdp4430_enum[] = {
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SOC_ENUM_SINGLE_EXT(2, power_texts),
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};
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static const struct snd_kcontrol_new sdp4430_controls[] = {
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SOC_ENUM_EXT("TWL6040 Power Mode", sdp4430_enum[0],
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sdp4430_get_power_mode, sdp4430_set_power_mode),
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};
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/* SDP4430 machine DAPM */
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static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
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SND_SOC_DAPM_MIC("Ext Mic", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_SPK("Earphone Spk", NULL),
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SND_SOC_DAPM_INPUT("Aux/FM Stereo In"),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* External Mics: MAINMIC, SUBMIC with bias*/
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{"MAINMIC", NULL, "Main Mic Bias"},
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{"SUBMIC", NULL, "Main Mic Bias"},
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{"Main Mic Bias", NULL, "Ext Mic"},
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/* External Speakers: HFL, HFR */
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{"Ext Spk", NULL, "HFL"},
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{"Ext Spk", NULL, "HFR"},
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/* Headset Mic: HSMIC with bias */
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{"HSMIC", NULL, "Headset Mic Bias"},
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{"Headset Mic Bias", NULL, "Headset Mic"},
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/* Headset Stereophone (Headphone): HSOL, HSOR */
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{"Headset Stereophone", NULL, "HSOL"},
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{"Headset Stereophone", NULL, "HSOR"},
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/* Earphone speaker */
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{"Earphone Spk", NULL, "EP"},
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/* Aux/FM Stereo In: AFML, AFMR */
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{"AFML", NULL, "Aux/FM Stereo In"},
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{"AFMR", NULL, "Aux/FM Stereo In"},
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};
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static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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int ret;
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/* Add SDP4430 specific controls */
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ret = snd_soc_add_controls(codec, sdp4430_controls,
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ARRAY_SIZE(sdp4430_controls));
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if (ret)
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return ret;
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/* Add SDP4430 specific widgets */
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ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
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ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
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if (ret)
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return ret;
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/* Set up SDP4430 specific audio path audio_map */
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snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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/* SDP4430 connected pins */
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snd_soc_dapm_enable_pin(dapm, "Ext Mic");
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snd_soc_dapm_enable_pin(dapm, "Ext Spk");
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snd_soc_dapm_enable_pin(dapm, "AFML");
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snd_soc_dapm_enable_pin(dapm, "AFMR");
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snd_soc_dapm_enable_pin(dapm, "Headset Mic");
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snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
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ret = snd_soc_dapm_sync(dapm);
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if (ret)
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return ret;
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/* Headset jack detection */
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ret = snd_soc_jack_new(codec, "Headset Jack",
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SND_JACK_HEADSET, &hs_jack);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
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hs_jack_pins);
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if (machine_is_omap_4430sdp())
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twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
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else
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snd_soc_jack_report(&hs_jack, SND_JACK_HEADSET, SND_JACK_HEADSET);
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return ret;
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}
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/* Digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link sdp4430_dai = {
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.name = "TWL6040",
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.stream_name = "TWL6040",
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.cpu_dai_name ="omap-mcpdm-dai",
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.codec_dai_name = "twl6040-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl6040-codec",
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.init = sdp4430_twl6040_init,
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.ops = &sdp4430_ops,
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_sdp4430 = {
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.name = "SDP4430",
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.dai_link = &sdp4430_dai,
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.num_links = 1,
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};
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static struct platform_device *sdp4430_snd_device;
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static int __init sdp4430_soc_init(void)
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{
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int ret;
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if (!machine_is_omap_4430sdp())
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return -ENODEV;
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printk(KERN_INFO "SDP4430 SoC init\n");
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sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
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if (!sdp4430_snd_device) {
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printk(KERN_ERR "Platform device allocation failed\n");
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return -ENOMEM;
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}
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platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);
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ret = platform_device_add(sdp4430_snd_device);
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if (ret)
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goto err;
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/* Codec starts in HP mode */
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twl6040_power_mode = 1;
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return 0;
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err:
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printk(KERN_ERR "Unable to add platform device\n");
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platform_device_put(sdp4430_snd_device);
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return ret;
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}
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module_init(sdp4430_soc_init);
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static void __exit sdp4430_soc_exit(void)
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{
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platform_device_unregister(sdp4430_snd_device);
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}
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module_exit(sdp4430_soc_exit);
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MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC SDP4430");
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MODULE_LICENSE("GPL");
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