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022658beab
Currently ASoC can only add kcontrols using codec and platform component device handles. It's also desirable to add kcontrols for DAIs (i.e. McBSP) and for SoC card machine drivers too. This allows the kcontrol to have a direct handle to the parent ASoC component DAI/SoC Card/Platform/Codec device and hence easily get it's private data. This change makes snd_soc_add_controls() static and wraps it in the folowing calls (card and dai are new) :- snd_soc_add_card_controls() snd_soc_add_codec_controls() snd_soc_add_dai_controls() snd_soc_add_platform_controls() This patch also does a lot of small mechanical changes in individual codec drivers to replace snd_soc_add_controls() with snd_soc_add_codec_controls(). It also updates the McBSP DAI driver to use snd_soc_add_dai_controls(). Finally, it updates the existing machine drivers that register controls to either :- 1) Use snd_soc_add_card_controls() where no direct codec control is required. 2) Use snd_soc_add_codec_controls() where there is direct codec control. In the case of 1) above we also update the machine drivers to get the correct component data pointers from the kcontrol (rather than getting the machine pointer via the codec pointer). Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
439 lines
12 KiB
C
439 lines
12 KiB
C
/*
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* mfld_machine.c - ASoc Machine driver for Intel Medfield MID platform
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*
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* Copyright (C) 2010 Intel Corp
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* Author: Vinod Koul <vinod.koul@intel.com>
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* Author: Harsha Priya <priya.harsha@intel.com>
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include "../codecs/sn95031.h"
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#define MID_MONO 1
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#define MID_STEREO 2
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#define MID_MAX_CAP 5
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#define MFLD_JACK_INSERT 0x04
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enum soc_mic_bias_zones {
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MFLD_MV_START = 0,
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/* mic bias volutage range for Headphones*/
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MFLD_MV_HP = 400,
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/* mic bias volutage range for American Headset*/
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MFLD_MV_AM_HS = 650,
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/* mic bias volutage range for Headset*/
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MFLD_MV_HS = 2000,
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MFLD_MV_UNDEFINED,
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};
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static unsigned int hs_switch;
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static unsigned int lo_dac;
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struct mfld_mc_private {
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void __iomem *int_base;
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u8 interrupt_status;
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};
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struct snd_soc_jack mfld_jack;
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/*Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin mfld_jack_pins[] = {
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{
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.pin = "Headphones",
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.mask = SND_JACK_HEADPHONE,
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},
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{
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.pin = "AMIC1",
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.mask = SND_JACK_MICROPHONE,
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},
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};
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/* jack detection voltage zones */
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static struct snd_soc_jack_zone mfld_zones[] = {
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{MFLD_MV_START, MFLD_MV_AM_HS, SND_JACK_HEADPHONE},
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{MFLD_MV_AM_HS, MFLD_MV_HS, SND_JACK_HEADSET},
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};
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/* sound card controls */
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static const char *headset_switch_text[] = {"Earpiece", "Headset"};
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static const char *lo_text[] = {"Vibra", "Headset", "IHF", "None"};
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static const struct soc_enum headset_enum =
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SOC_ENUM_SINGLE_EXT(2, headset_switch_text);
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static const struct soc_enum lo_enum =
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SOC_ENUM_SINGLE_EXT(4, lo_text);
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static int headset_get_switch(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] = hs_switch;
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return 0;
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}
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static int headset_set_switch(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
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if (ucontrol->value.integer.value[0] == hs_switch)
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return 0;
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if (ucontrol->value.integer.value[0]) {
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pr_debug("hs_set HS path\n");
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snd_soc_dapm_enable_pin(&codec->dapm, "Headphones");
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snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
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} else {
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pr_debug("hs_set EP path\n");
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snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
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snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT");
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}
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snd_soc_dapm_sync(&codec->dapm);
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hs_switch = ucontrol->value.integer.value[0];
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return 0;
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}
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static void lo_enable_out_pins(struct snd_soc_codec *codec)
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{
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snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTL");
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snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTR");
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snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTL");
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snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTR");
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snd_soc_dapm_enable_pin(&codec->dapm, "VIB1OUT");
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snd_soc_dapm_enable_pin(&codec->dapm, "VIB2OUT");
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if (hs_switch) {
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snd_soc_dapm_enable_pin(&codec->dapm, "Headphones");
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snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
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} else {
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snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
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snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT");
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}
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}
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static int lo_get_switch(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] = lo_dac;
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return 0;
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}
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static int lo_set_switch(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
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if (ucontrol->value.integer.value[0] == lo_dac)
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return 0;
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/* we dont want to work with last state of lineout so just enable all
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* pins and then disable pins not required
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*/
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lo_enable_out_pins(codec);
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switch (ucontrol->value.integer.value[0]) {
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case 0:
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pr_debug("set vibra path\n");
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snd_soc_dapm_disable_pin(&codec->dapm, "VIB1OUT");
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snd_soc_dapm_disable_pin(&codec->dapm, "VIB2OUT");
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snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0);
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break;
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case 1:
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pr_debug("set hs path\n");
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snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
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snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
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snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x22);
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break;
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case 2:
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pr_debug("set spkr path\n");
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snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTL");
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snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTR");
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snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x44);
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break;
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case 3:
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pr_debug("set null path\n");
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snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTL");
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snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTR");
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snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x66);
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break;
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}
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snd_soc_dapm_sync(&codec->dapm);
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lo_dac = ucontrol->value.integer.value[0];
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return 0;
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}
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static const struct snd_kcontrol_new mfld_snd_controls[] = {
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SOC_ENUM_EXT("Playback Switch", headset_enum,
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headset_get_switch, headset_set_switch),
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SOC_ENUM_EXT("Lineout Mux", lo_enum,
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lo_get_switch, lo_set_switch),
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};
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static const struct snd_soc_dapm_widget mfld_widgets[] = {
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SND_SOC_DAPM_HP("Headphones", NULL),
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SND_SOC_DAPM_MIC("Mic", NULL),
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};
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static const struct snd_soc_dapm_route mfld_map[] = {
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{"Headphones", NULL, "HPOUTR"},
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{"Headphones", NULL, "HPOUTL"},
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{"Mic", NULL, "AMIC1"},
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};
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static void mfld_jack_check(unsigned int intr_status)
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{
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struct mfld_jack_data jack_data;
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jack_data.mfld_jack = &mfld_jack;
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jack_data.intr_id = intr_status;
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sn95031_jack_detection(&jack_data);
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/* TODO: add american headset detection post gpiolib support */
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}
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static int mfld_init(struct snd_soc_pcm_runtime *runtime)
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{
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struct snd_soc_codec *codec = runtime->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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int ret_val;
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/* Add jack sense widgets */
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snd_soc_dapm_new_controls(dapm, mfld_widgets, ARRAY_SIZE(mfld_widgets));
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/* Set up the map */
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snd_soc_dapm_add_routes(dapm, mfld_map, ARRAY_SIZE(mfld_map));
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/* always connected */
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snd_soc_dapm_enable_pin(dapm, "Headphones");
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snd_soc_dapm_enable_pin(dapm, "Mic");
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ret_val = snd_soc_add_codec_controls(codec, mfld_snd_controls,
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ARRAY_SIZE(mfld_snd_controls));
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if (ret_val) {
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pr_err("soc_add_controls failed %d", ret_val);
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return ret_val;
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}
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/* default is earpiece pin, userspace sets it explcitly */
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snd_soc_dapm_disable_pin(dapm, "Headphones");
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/* default is lineout NC, userspace sets it explcitly */
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snd_soc_dapm_disable_pin(dapm, "LINEOUTL");
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snd_soc_dapm_disable_pin(dapm, "LINEOUTR");
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lo_dac = 3;
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hs_switch = 0;
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/* we dont use linein in this so set to NC */
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snd_soc_dapm_disable_pin(dapm, "LINEINL");
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snd_soc_dapm_disable_pin(dapm, "LINEINR");
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/* Headset and button jack detection */
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ret_val = snd_soc_jack_new(codec, "Intel(R) MID Audio Jack",
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SND_JACK_HEADSET | SND_JACK_BTN_0 |
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SND_JACK_BTN_1, &mfld_jack);
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if (ret_val) {
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pr_err("jack creation failed\n");
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return ret_val;
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}
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ret_val = snd_soc_jack_add_pins(&mfld_jack,
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ARRAY_SIZE(mfld_jack_pins), mfld_jack_pins);
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if (ret_val) {
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pr_err("adding jack pins failed\n");
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return ret_val;
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}
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ret_val = snd_soc_jack_add_zones(&mfld_jack,
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ARRAY_SIZE(mfld_zones), mfld_zones);
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if (ret_val) {
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pr_err("adding jack zones failed\n");
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return ret_val;
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}
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/* we want to check if anything is inserted at boot,
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* so send a fake event to codec and it will read adc
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* to find if anything is there or not */
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mfld_jack_check(MFLD_JACK_INSERT);
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return ret_val;
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}
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static struct snd_soc_dai_link mfld_msic_dailink[] = {
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{
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.name = "Medfield Headset",
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.stream_name = "Headset",
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.cpu_dai_name = "Headset-cpu-dai",
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.codec_dai_name = "SN95031 Headset",
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.codec_name = "sn95031",
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.platform_name = "sst-platform",
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.init = mfld_init,
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},
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{
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.name = "Medfield Speaker",
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.stream_name = "Speaker",
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.cpu_dai_name = "Speaker-cpu-dai",
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.codec_dai_name = "SN95031 Speaker",
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.codec_name = "sn95031",
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.platform_name = "sst-platform",
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.init = NULL,
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},
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{
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.name = "Medfield Vibra",
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.stream_name = "Vibra1",
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.cpu_dai_name = "Vibra1-cpu-dai",
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.codec_dai_name = "SN95031 Vibra1",
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.codec_name = "sn95031",
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.platform_name = "sst-platform",
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.init = NULL,
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},
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{
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.name = "Medfield Haptics",
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.stream_name = "Vibra2",
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.cpu_dai_name = "Vibra2-cpu-dai",
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.codec_dai_name = "SN95031 Vibra2",
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.codec_name = "sn95031",
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.platform_name = "sst-platform",
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.init = NULL,
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},
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};
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/* SoC card */
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static struct snd_soc_card snd_soc_card_mfld = {
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.name = "medfield_audio",
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.owner = THIS_MODULE,
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.dai_link = mfld_msic_dailink,
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.num_links = ARRAY_SIZE(mfld_msic_dailink),
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};
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static irqreturn_t snd_mfld_jack_intr_handler(int irq, void *dev)
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{
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struct mfld_mc_private *mc_private = (struct mfld_mc_private *) dev;
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memcpy_fromio(&mc_private->interrupt_status,
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((void *)(mc_private->int_base)),
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sizeof(u8));
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return IRQ_WAKE_THREAD;
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}
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static irqreturn_t snd_mfld_jack_detection(int irq, void *data)
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{
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struct mfld_mc_private *mc_drv_ctx = (struct mfld_mc_private *) data;
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if (mfld_jack.codec == NULL)
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return IRQ_HANDLED;
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mfld_jack_check(mc_drv_ctx->interrupt_status);
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return IRQ_HANDLED;
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}
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static int __devinit snd_mfld_mc_probe(struct platform_device *pdev)
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{
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int ret_val = 0, irq;
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struct mfld_mc_private *mc_drv_ctx;
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struct resource *irq_mem;
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pr_debug("snd_mfld_mc_probe called\n");
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/* retrive the irq number */
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irq = platform_get_irq(pdev, 0);
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/* audio interrupt base of SRAM location where
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* interrupts are stored by System FW */
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mc_drv_ctx = kzalloc(sizeof(*mc_drv_ctx), GFP_ATOMIC);
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if (!mc_drv_ctx) {
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pr_err("allocation failed\n");
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return -ENOMEM;
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}
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irq_mem = platform_get_resource_byname(
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pdev, IORESOURCE_MEM, "IRQ_BASE");
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if (!irq_mem) {
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pr_err("no mem resource given\n");
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ret_val = -ENODEV;
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goto unalloc;
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}
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mc_drv_ctx->int_base = ioremap_nocache(irq_mem->start,
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resource_size(irq_mem));
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if (!mc_drv_ctx->int_base) {
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pr_err("Mapping of cache failed\n");
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ret_val = -ENOMEM;
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goto unalloc;
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}
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/* register for interrupt */
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ret_val = request_threaded_irq(irq, snd_mfld_jack_intr_handler,
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snd_mfld_jack_detection,
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IRQF_SHARED, pdev->dev.driver->name, mc_drv_ctx);
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if (ret_val) {
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pr_err("cannot register IRQ\n");
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goto unalloc;
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}
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/* register the soc card */
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snd_soc_card_mfld.dev = &pdev->dev;
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ret_val = snd_soc_register_card(&snd_soc_card_mfld);
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if (ret_val) {
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pr_debug("snd_soc_register_card failed %d\n", ret_val);
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goto freeirq;
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}
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platform_set_drvdata(pdev, mc_drv_ctx);
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pr_debug("successfully exited probe\n");
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return ret_val;
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freeirq:
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free_irq(irq, mc_drv_ctx);
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unalloc:
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kfree(mc_drv_ctx);
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return ret_val;
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}
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static int __devexit snd_mfld_mc_remove(struct platform_device *pdev)
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{
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struct mfld_mc_private *mc_drv_ctx = platform_get_drvdata(pdev);
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pr_debug("snd_mfld_mc_remove called\n");
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free_irq(platform_get_irq(pdev, 0), mc_drv_ctx);
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snd_soc_unregister_card(&snd_soc_card_mfld);
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kfree(mc_drv_ctx);
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platform_set_drvdata(pdev, NULL);
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return 0;
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}
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static struct platform_driver snd_mfld_mc_driver = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "msic_audio",
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},
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.probe = snd_mfld_mc_probe,
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.remove = __devexit_p(snd_mfld_mc_remove),
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};
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module_platform_driver(snd_mfld_mc_driver);
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MODULE_DESCRIPTION("ASoC Intel(R) MID Machine driver");
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MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
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MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:msic-audio");
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