[alsa-devel] [PATCH] Add initial support of Mitac mioa701 device SoC.
Liam Girdwood
liam.girdwood at wolfsonmicro.com
Wed Jul 9 12:59:16 CEST 2008
On Tue, 2008-07-08 at 22:45 +0200, Robert Jarzmik wrote:
> This machine driver enables sound functions on Mitac mio
> a701 smartphone. Build upon ASoC v2, it handles :
> - rear speaker
> - front speaker
> - microphone
> - GSM
>
I've committed both to git now. We can upstream when the dependencies
are committed. Just some minor comments below.
> A global "Mio Mode" switch is provided to cope with audio
> path setup. It ensures balance on audio chip line, which if
> not respected can produce a lot of heat and even fry the
> battery behind the wm9713 and the speaker amplificator.
Fwiw, there is a thermal IRQ on the WM9713 and you may want to use it
for monitoring this. However it only interrupts at 150C so it may be a
little high for this purpose.
>
> It doesn't cope with :
> - headset jack (will be integrade after jack support has
> hit ASoC v2)
This is still pending atm.
> - master volume control (depending on current Mio Mode,
> will be submitted in a second patch)
>
If it depends on mode then have a look at the scenario/use case/mode
manager for ALSA :-
http://opensource.wolfsonmicro.com/node/14
This is something I'd like to see used more as it does define a
consistent interface to userspace.
> Signed-off-by: Robert Jarzmik <robert.jarzmik at free.fr>
> ---
> sound/soc/pxa/Kconfig | 9 +
> sound/soc/pxa/Makefile | 2 +
> sound/soc/pxa/mioa701_wm9713.c | 639 ++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 650 insertions(+), 0 deletions(-)
> create mode 100644 sound/soc/pxa/mioa701_wm9713.c
>
> diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
> index 7530227..ca60dec 100644
> --- a/sound/soc/pxa/Kconfig
> +++ b/sound/soc/pxa/Kconfig
> @@ -139,3 +139,12 @@ config SND_PXA2XX_SOC_E800
> help
> Say Y if you want to add support for SoC audio on the
> Toshiba e800 PDA
> +
> +config SND_PXA2XX_SOC_MIOA701
> + tristate "SoC Audio support for MIO A701"
> + depends on SND_PXA2XX_SOC
> + select SND_PXA2XX_SOC_AC97
> + select SND_SOC_WM9713
> + help
> + Say Y if you want to add support for SoC audio on the
> + MIO A701.
> diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile
> index fd45a09..ce171c3 100644
> --- a/sound/soc/pxa/Makefile
> +++ b/sound/soc/pxa/Makefile
> @@ -21,6 +21,7 @@ snd-soc-spitz-objs := spitz.o
> snd-soc-amesom-tlv320-objs := amesom_tlv320.o
> snd-soc-magician-objs := magician.o
> snd-soc-h5000-objs := h5000.o
> +snd-soc-mioa701-objs := mioa701_wm9713.o
> snd-soc-mainstone-wm8753-objs := mainstone_wm8753.o
> snd-soc-mainstone-wm9713-objs := mainstone_wm9713.o
> snd-soc-mainstone-wm9712-objs := mainstone_wm9712.o
> @@ -34,6 +35,7 @@ obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o
> obj-$(CONFIG_SND_PXA2XX_SOC_AMESOM_TLV320) += snd-soc-amesom-tlv320.o
> obj-$(CONFIG_SND_PXA2XX_SOC_MAGICIAN) += snd-soc-magician.o
> obj-$(CONFIG_SND_PXA2XX_SOC_H5000) += snd-soc-h5000.o
> +obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o
> obj-$(CONFIG_SND_PXA2XX_SOC_MAINSTONE_WM8753) += snd-soc-mainstone-wm8753.o
> obj-$(CONFIG_SND_PXA2XX_SOC_MAINSTONE_WM9713) += snd-soc-mainstone-wm9713.o
> obj-$(CONFIG_SND_PXA2XX_SOC_MAINSTONE_WM9712) += snd-soc-mainstone-wm9712.o
> diff --git a/sound/soc/pxa/mioa701_wm9713.c b/sound/soc/pxa/mioa701_wm9713.c
> new file mode 100644
> index 0000000..4df42e0
> --- /dev/null
> +++ b/sound/soc/pxa/mioa701_wm9713.c
> @@ -0,0 +1,639 @@
> +/*
> + * Handles the Mitac mioa701 SoC system
> + *
> + * Copyright (C) 2008 Robert Jarzmik
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
> + *
> + */
> +
> +#include <linux/module.h>
> +#include <linux/moduleparam.h>
> +#include <linux/platform_device.h>
> +
> +#include <sound/core.h>
> +#include <sound/pcm.h>
> +#include <sound/soc.h>
> +#include <sound/soc-dapm.h>
> +#include <sound/initval.h>
> +#include <sound/ac97_codec.h>
> +
> +#include <asm/arch/audio.h>
> +
> +#include "pxa2xx-pcm.h"
> +#include "../codecs/wm9713.h"
> +
> +#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
> +
> +#define AC97_GPIO_PULL 0x58
> +
> +/* define the scenarios */
> +#define MIO_AUDIO_OFF 0
> +#define MIO_GSM_AUDIO_HANDSET 1
> +#define MIO_GSM_AUDIO_HEADSET 2
> +#define MIO_GSM_AUDIO_HANDSFREE 3
> +#define MIO_GSM_AUDIO_BLUETOOTH 4
> +#define MIO_STEREO_TO_SPEAKER 5
> +#define MIO_STEREO_TO_HEADPHONES 6
> +#define MIO_CAPTURE_HANDSET 7
> +#define MIO_CAPTURE_HEADSET 8
> +#define MIO_CAPTURE_BLUETOOTH 9
> +
> +static int mio_scenario = MIO_AUDIO_OFF;
> +
> +static int phone_stream_start(struct snd_soc_card *card);
> +static int phone_stream_stop(struct snd_soc_card *card);
> +
> +struct mio_mixes_t {
> + char *mixname;
> + int val;
> +};
> +
> +static const struct mio_mixes_t mixes_reset_all[] = {
> + /* left HP mixer */
> + {"Left HP Mixer PC Beep Playback Switch", 0},
> + {"Left HP Mixer Voice Playback Switch", 0},
> + {"Left HP Mixer Aux Playback Switch", 0},
> + {"Left HP Mixer Bypass Playback Switch", 0},
> + {"Left HP Mixer PCM Playback Switch", 0},
> + {"Left HP Mixer MonoIn Playback Switch", 0},
> + {"Left HP Mixer Capture Headphone Mux", 0},
> +
> + /* right HP mixer */
> + {"Right HP Mixer PC Beep Playback Switch", 0},
> + {"Right HP Mixer Voice Playback Switch", 0},
> + {"Right HP Mixer Aux Playback Switch", 0},
> + {"Right HP Mixer Bypass Playback Switch", 0},
> + {"Right HP Mixer PCM Playback Switch", 0},
> + {"Right HP Mixer MonoIn Playback Switch", 0},
> + {"Right HP Mixer Capture Headphone Mux", 0},
> +
> + /* speaker mixer */
> + {"Speaker Mixer PC Beep Playback Switch", 0},
> + {"Speaker Mixer Voice Playback Switch", 0},
> + {"Speaker Mixer Aux Playback Switch", 0},
> + {"Speaker Mixer Bypass Playback Switch", 0},
> + {"Speaker Mixer PCM Playback Switch", 0},
> + {"Speaker Mixer MonoIn Playback Switch", 0},
> + {"Speaker Mixer Mic 1 Sidetone Switch", 0},
> +
> + /* mono mixer */
> + {"Mono Mixer PC Beep Playback Switch", 0},
> + {"Mono Mixer Voice Playback Switch", 0},
> + {"Mono Mixer Aux Playback Switch", 0},
> + {"Mono Mixer Bypass Playback Switch", 0},
> + {"Mono Mixer PCM Playback Switch", 0},
> + {"Mono Mixer Capture Mono Mux", 0},
> + {"Mono Mixer MonoIn Playback Switch", 0},
> + {"Mono Mixer Mic 1 Sidetone Switch", 0},
> + {"Mono Playback Switch", 0},
> +
> + /* headphone muxers */
> + {"Left Headphone Out Mux", 0},
> + {"Right Headphone Out Mux", 0},
> +
> + /* speaker muxer */
> + {"Left Speaker Out Mux", 0},
> + {"Right Speaker Out Mux", 0},
> +
> + /* Out3 muxer */
> + { "Out 3 Mux", 0},
> +
> + { NULL, 0 }
> +};
> +
> +static const struct mio_mixes_t mixes_gsm_call_headset[] = {
> + /*
> + * GSM Out to Headset HPL Path
> + * => PCBeep -> Headphone Mixer, Headphone Mixer -> HPL
> + */
> + { "Left HP Mixer PC Beep Playback Switch", 1 },
> + { "Left Headphone Out Mux", 2 },
> + /*
> + * GSM Out to Headset HPR Path
> + * => MonoIn -> Headphone Mixer, Headphone Mixer -> HPR
> + */
> + { "Right HP Mixer MonoIn Playback Switch" , 1 },
> + { "Right Headphone Out Mux", 2 },
> + /*
> + * LineL to GSM In
> + * LineL -> MonoMixer, MonoMixer -> Mono, Unmute Mono Mixer
> + */
> + { "Mono Mixer Bypass Playback Switch", 1},
> + { "Mono Out Mux", 2 },
> + { "Mono Playback Switch", 1},
> + { NULL, 0 }
> +};
> +
> +static const struct mio_mixes_t mixes_gsm_call_handset[] = {
> + /*
> + * GSM Out to Front Speaker HPL Path
> + * => PCBeep -> Headphone Mixer, Headphone Mixer -> HPL
> + */
> + { "Left HP Mixer PC Beep Playback Switch", 1 },
> + { "Left Headphone Out Mux", 2 },
> + /*
> + * GSM Out to Front Speaker Out3 Path
> + * => MonoIn -> Speaker Mixer, Speaker Mixer -> Inv1, Inv1 -> Out3
> + */
> + { "Speaker Mixer MonoIn Playback Switch" , 1 },
> + { "DAC Inv Mux 1", 2 },
> + { "Out 3 Mux", 2 },
> + /*
> + * MIC1 to GSM In
> + * => MIC1 -> MICA, MICA -> Mono Mixer, Mono Mixer -> MONO,
> + * UnMute Mono Mixer
> + */
> + { "Mic A Source", 0 },
> + { "Mono Mixer Mic 1 Sidetone Switch", 1 },
> + { "Mono Out Mux", 2 },
> + { "Mono Playback Switch", 1},
> + { NULL, 0 }
> +};
> +
> +static const struct mio_mixes_t mixes_gsm_call_handsfree[] = {
> + /*
> + * GSM Out to Rear Speaker SPKL Path
> + * => PCBeep -> Speaker Mixer, Speaker Mixer -> Inv1, Inv1 -> SPKL
> + */
> + { "Speaker Mixer PC Beep Playback Switch", 1 },
> + { "DAC Inv Mux 1", 2 },
> + { "Left Speaker Out Mux", 4 },
> + /*
> + * GSM Out to Rear Speaker SPKR Path
> + * => MonoIn -> Speaker Mixer, Speaker Mixer -> SPKR
> + */
> + { "Speaker Mixer MonoIn Playback Switch" , 1 },
> + { "Right Speaker Out Mux", 3 },
> + /*
> + * MIC1 to GSM In
> + * => MIC1 -> MICA, MICA -> Mono Mixer, Mono Mixer -> MONO,
> + * Unmute Mono Mixer
> + */
> + { "Mic A Source", 0 },
> + { "Mono Mixer Mic 1 Sidetone Switch", 1 },
> + { "Mono Out Mux", 2 },
> + { "Mono Playback Switch", 1},
> + { NULL, 0 }
> +};
> +
> +static const struct mio_mixes_t mixes_stereo_to_rearspeaker[] = {
> + /*
> + * PCM to Rear Speakers
> + * => PCM -> Speaker Mixer, Speaker Mixer -> Inv1, Inv1 -> SPKL,
> + * Speaker Mixer -> SPKR
> + */
> + { "Speaker Mixer PCM Playback Switch", 1},
> + { "DAC Inv Mux 1", 2 },
> + { "Left Speaker Out Mux", 4 },
> + { "Right Speaker Out Mux", 3 },
> + { NULL, 0 }
> +};
> +
> +struct snd_kcontrol *mioa701_kctrl_byname(struct snd_soc_card *card, char *n)
> +{
> + struct snd_ctl_elem_id rid;
> +
> + memset(&rid, 0, sizeof(rid));
> + rid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
> + strncpy(rid.name, n, sizeof(rid.name));
> + return snd_ctl_find_id(card->card, &rid);
> +}
> +
> +void setup_muxers(struct snd_soc_card *card, const struct mio_mixes_t mixes[])
> +{
> + int pos = 0;
> + struct snd_kcontrol *kctl;
> + struct snd_ctl_elem_value ucontrol;
> + char mname[44];
> +
> + while (mixes[pos].mixname) {
> + memset(mname, 0, 44);
> + strncpy(mname, mixes[pos].mixname, 43);
> + kctl = mioa701_kctrl_byname(card, mname);
> + memset(&ucontrol, 0, sizeof(ucontrol));
> + if (kctl) {
> + kctl->get(kctl, &ucontrol);
> + ucontrol.value.enumerated.item[0] = mixes[pos].val;
> + kctl->put(kctl, &ucontrol);
> + }
> + pos++;
> + }
> +}
> +
> +#define NB_ENDP ARRAY_SIZE(endpn)
> +static int set_scenario_endpoints(struct snd_soc_card *card, int scenario)
> +{
> + static char *endpn[] = { "Front Speaker", "Rear Speaker",
> + "GSM Line Out", "GSM Line In",
> + "Headset Mic", "Front Mic", "Headset" };
> + static const int typ_endps[][NB_ENDP] = {
> + { 0, 0, 0, 0, 0, 0, 0 }, /* MIO_AUDIO_OFF */
> + { 1, 0, 1, 1, 0, 1, 0 }, /* MIO_GSM_AUDIO_HANDSET */
> + { 0, 0, 1, 1, 1, 0, 1 }, /* MIO_GSM_AUDIO_HEADSET */
> + { 0, 1, 1, 1, 0, 1, 0 }, /* MIO_GSM_AUDIO_HANDSFREE*/
> + { 0, 0, 1, 1, 0, 0, 0 }, /* MIO_GSM_AUDIO_BLUETOOTH*/
> + { 0, 1, 0, 0, 0, 0, 0 }, /* MIO_STEREO_TO_SPEAKER */
> + { 0, 0, 0, 0, 0, 0, 1 }, /* MIO_STEREO_TO_HEADPHONES */
> + { 0, 0, 0, 0, 0, 1, 0 }, /* MIO_CAPTURE_HANDSET */
> + { 0, 0, 0, 0, 1, 0, 0 }, /* MIO_CAPTURE_HEADSET */
> + { 0, 0, 0, 0, 0, 0, 0 }, /* MIO_CAPTURE_BLUETOOTH */
> + };
> + const int *endps = typ_endps[scenario];
> + int i;
> +
> + for (i = 0; i < NB_ENDP; i++)
> + if (endps[i])
> + snd_soc_dapm_enable_pin(card, endpn[i]);
> + else
> + snd_soc_dapm_disable_pin(card, endpn[i]);
> + snd_soc_dapm_sync(card);
> +
> + return 0;
> +}
> +
> +static int get_scenario(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + ucontrol->value.integer.value[0] = mio_scenario;
> + return 0;
> +}
> +
> +static int isPhoneMode(int scenario)
> +{
> + int onPhone = 0;
> +
> + switch (scenario) {
> + case MIO_GSM_AUDIO_HANDSET:
> + case MIO_GSM_AUDIO_HEADSET:
> + case MIO_GSM_AUDIO_BLUETOOTH:
> + case MIO_GSM_AUDIO_HANDSFREE:
> + onPhone = 1;
> + }
> +
> + return onPhone;
> +}
> +
> +static void switch_mio_mode(struct snd_soc_card *card, int new_scenario)
> +{
> + int wasPhone = 0, willPhone = 0;
> +
> + wasPhone = isPhoneMode(mio_scenario);
> + willPhone = isPhoneMode(new_scenario);
> +
> + mio_scenario = new_scenario;
> + set_scenario_endpoints(card, mio_scenario);
> +
> + if (!wasPhone && willPhone)
> + phone_stream_start(card);
> + if (wasPhone && !willPhone)
> + phone_stream_stop(card);
> +
> + setup_muxers(card, mixes_reset_all);
> + switch (mio_scenario) {
> + case MIO_STEREO_TO_SPEAKER:
> + setup_muxers(card, mixes_stereo_to_rearspeaker);
> + break;
> + case MIO_GSM_AUDIO_HANDSET:
> + setup_muxers(card, mixes_gsm_call_handset);
> + break;
> + case MIO_GSM_AUDIO_HANDSFREE:
> + setup_muxers(card, mixes_gsm_call_handsfree);
> + break;
> + case MIO_GSM_AUDIO_HEADSET:
> + setup_muxers(card, mixes_gsm_call_headset);
> + break;
> + default:
> + break;
> + }
> +}
> +
> +static int set_scenario(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
> +
> + if (mio_scenario == ucontrol->value.integer.value[0])
> + return 0;
> +
> + switch_mio_mode(card, ucontrol->value.integer.value[0]);
> + return 1;
> +}
> +
> +static int phone_stream_start(struct snd_soc_card *card)
> +{
> + snd_soc_dapm_stream_event(card, "AC97 HiFi",
> + SND_SOC_DAPM_STREAM_START);
> + return 0;
> +}
> +
> +static int phone_stream_stop(struct snd_soc_card *card)
> +{
> + snd_soc_dapm_stream_event(card, "AC97 HiFi",
> + SND_SOC_DAPM_STREAM_STOP);
> + return 0;
> +}
> +
> +/* Use GPIO8 for rear speaker amplificator */
> +static int rear_amp_power(struct snd_soc_codec *codec, int power)
> +{
> + unsigned short reg;
> +
> + if (power) {
> + reg = snd_soc_read(codec, AC97_GPIO_CFG);
> + snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100);
> + reg = snd_soc_read(codec, AC97_GPIO_PULL);
> + snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15));
> + } else {
> + reg = snd_soc_read(codec, AC97_GPIO_CFG);
> + snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100);
> + reg = snd_soc_read(codec, AC97_GPIO_PULL);
> + snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15));
> + }
> +
> + return 0;
> +}
> +
> +static int rear_amp_event(struct snd_soc_dapm_widget *widget,
> + struct snd_kcontrol *kctl, int event)
> +{
> + struct snd_soc_codec *codec = widget->codec;
> + int rc;
> +
> + if (SND_SOC_DAPM_EVENT_ON(event))
> + rc = rear_amp_power(codec, 1);
> + else
> + rc = rear_amp_power(codec, 0);
> +
This could be shortened to :-
return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
> + return rc;
> +}
> +
> +static const char *mio_scenarios[] = {
> + "Off",
> + "GSM Handset",
> + "GSM Headset",
> + "GSM Handsfree",
> + "GSM Bluetooth",
> + "PCM Speaker",
> + "Headphones",
> + "Capture Handset",
> + "Capture Headset",
> + "Capture Bluetooth"
> +};
> +static const struct soc_enum mio_scenario_enum[] = {
> + SOC_ENUM_SINGLE_EXT(10, mio_scenarios),
> +};
> +
> +static const struct snd_kcontrol_new mioa701_controls[] = {
> + SOC_ENUM_EXT("Mio Mode", mio_scenario_enum[0],
> + get_scenario, set_scenario),
> +};
> +
> +/* mioa701 machine dapm widgets */
> +static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = {
> + SND_SOC_DAPM_SPK("Front Speaker", NULL),
> + SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event),
> + SND_SOC_DAPM_MIC("Headset", NULL),
> + SND_SOC_DAPM_LINE("GSM Line Out", NULL),
> + SND_SOC_DAPM_LINE("GSM Line In", NULL),
> + SND_SOC_DAPM_MIC("Headset Mic", NULL),
> + SND_SOC_DAPM_MIC("Front Mic", NULL),
> +};
> +
> +static const struct snd_soc_dapm_route audio_map[] = {
> + /* Call Mic */
> + {"Mic Bias", NULL, "Front Mic"},
> + {"MIC1", NULL, "Mic Bias"},
> +
> + /* Headset Mic */
> + {"LINEL", NULL, "Headset Mic"},
> + {"LINER", NULL, "Headset Mic"},
> +
> + /* GSM Module */
> + {"MONOIN", NULL, "GSM Line Out"},
> + {"PCBEEP", NULL, "GSM Line Out"},
> + {"GSM Line In", NULL, "MONO"},
> +
> + /* headphone connected to HPL, HPR */
> + {"Headset", NULL, "HPL"},
> + {"Headset", NULL, "HPR"},
> +
> + /* front speaker connected to HPL, OUT3 */
> + {"Front Speaker", NULL, "HPL"},
> + {"Front Speaker", NULL, "OUT3"},
> +
> + /* rear speaker connected to SPKL, SPKR */
> + {"Rear Speaker", NULL, "SPKL"},
> + {"Rear Speaker", NULL, "SPKR"},
> +};
> +
> +static int mioa701_wm9713_init(struct snd_soc_card *card)
> +{
> + struct snd_soc_codec *codec;
> + struct snd_ac97_bus_ops *ac97_ops;
> + int i, ret;
> + unsigned short reg;
> +
> + codec = snd_soc_card_get_codec(card, wm9713_codec_id, 0);
> + if (codec == NULL)
> + return -ENODEV;
> +
> + ac97_ops = snd_soc_card_get_ac97_ops(card, pxa_ac97_hifi_dai_id);
> + if (!ac97_ops) {
> + printk(KERN_ERR "Unable to obtain AC97 operations\n");
> + return -ENODEV;
> + }
> +
> + /* register with AC97 bus for ad-hoc driver access */
> + ret = snd_soc_new_ac97_codec(codec, ac97_ops, card->card, 0, 0);
> + if (ret < 0)
> + return ret;
> +
> + /* do a cold reset for the controller and then try
> + * a warm reset followed by an optional cold reset for codec */
> + ac97_ops->reset(codec->ac97);
> + ac97_ops->warm_reset(codec->ac97);
> + if (ac97_ops->read(codec->ac97, AC97_VENDOR_ID1) == 0) {
> + printk(KERN_ERR "AC97 link error\n");
> + return ret;
> + }
> +
> + snd_soc_card_init_codec(codec, card);
> +
> + /* initialize mioa701 codec pins */
> + set_scenario_endpoints(card, mio_scenario);
> +
> + /* Add mioa701 specific controls */
> + for (i = 0; i < ARRAY_SIZE(mioa701_controls); i++) {
> + ret = snd_ctl_add(card->card, snd_soc_cnew(&mioa701_controls[i],
> + card, NULL));
> + if (ret)
> + goto out;
> + }
> +
> + /* Add mioa701 specific widgets */
> + ret = snd_soc_dapm_new_controls(card, codec,
> + ARRAY_AND_SIZE(mioa701_dapm_widgets));
> + if (ret)
> + goto out;
> +
> + /* Set up mioa701 specific audio path audio_mapnects */
> + ret = snd_soc_dapm_add_routes(card, ARRAY_AND_SIZE(audio_map));
> + if (ret)
> + goto out;
> +
> + /* Prepare MIC input */
> + reg = snd_soc_read(codec, AC97_3D_CONTROL);
> + snd_soc_write(codec, AC97_3D_CONTROL, reg | 0xc000);
> +
> + snd_soc_dapm_sync(card);
> +
> + return 0;
> +out:
> + return ret;
> +}
> +
> +static void mioa701_wm9713_exit(struct snd_soc_card *card)
> +{
I assume this will never be called in real life phone usage. If it is
you could optionally shutdown/slow down the AC97 link to save power.
> +}
> +
> +#ifdef CONFIG_PM
> +static int mioa701_wm9713_suspend(struct platform_device *pdev,
> + pm_message_t state)
> +{
> + struct snd_soc_card *card = platform_get_drvdata(pdev);
> + struct snd_soc_codec *codec;
> +
> + codec = snd_soc_card_get_codec(card, wm9713_codec_id, 0);
> + if (codec == NULL)
> + return -ENODEV;
> +
> + rear_amp_power(codec, 0);
> + return 0; /* snd_soc_card_suspend_pcms(card, state) doesn't work */
> +}
> +
> +static int mioa701_wm9713_resume(struct platform_device *pdev)
> +{
> + struct snd_soc_card *card = platform_get_drvdata(pdev);
> + struct snd_soc_codec *codec;
> +
> + codec = snd_soc_card_get_codec(card, wm9713_codec_id, 0);
> + if (codec == NULL)
> + return -ENODEV;
> +
> + rear_amp_power(codec, 0);
> + return 0; /* snd_soc_card_resume_pcms(card) doesn't work */
> +}
> +
> +#else
> +#define mioa701_wm9713_suspend NULL
> +#define mioa701_wm9713_resume NULL
> +#endif
> +
> +static struct snd_soc_ops mioa701_hifi_ops = {
> +};
> +
> +static struct snd_soc_ops mioa701_aux_ops = {
> +};
> +
> +static struct snd_soc_pcm_config pcm_configs[] = {
> + {
> + .name = "Aux",
> + .codec = wm9713_codec_id,
> + .codec_dai = wm9713_codec_aux_dai_id,
> + .platform = pxa_platform_id,
> + .cpu_dai = pxa_ac97_aux_dai_id,
> + .playback = 1,
> + .ops = &mioa701_aux_ops,
> + },
> + {
> + .name = "HiFi",
> + .codec = wm9713_codec_id,
> + .codec_dai = wm9713_codec_hifi_dai_id,
> + .platform = pxa_platform_id,
> + .cpu_dai = pxa_ac97_hifi_dai_id,
> + .playback = 1,
> + .capture = 1,
> + .ops = &mioa701_hifi_ops,
> + },
> +};
> +
> +static int mioa701_wm9713_probe(struct platform_device *pdev)
> +{
> + struct snd_soc_card *card;
> + int ret;
> +
> + card = snd_soc_card_create("mioa701", &pdev->dev,
> + SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
> + if (card == NULL)
> + return -ENOMEM;
> +
> + card->longname = "WM9713";
> + card->init = mioa701_wm9713_init;
> + card->exit = mioa701_wm9713_exit;
> + card->private_data = pdev;
> + platform_set_drvdata(pdev, card);
> +
> + ret = snd_soc_card_create_pcms(card, ARRAY_AND_SIZE(pcm_configs));
> + if (ret < 0)
> + goto errpcms;
> +
> + ret = snd_soc_card_register(card);
> + if (ret < 0)
> + goto errcard;
> + return ret;
> +
> +errpcms:
> + snd_soc_card_free(card);
> +errcard:
> + return ret;
> +}
> +
> +static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
> +{
> + struct snd_soc_card *card = platform_get_drvdata(pdev);
> +
> + snd_soc_card_free(card);
> + return 0;
> +}
> +
> +static struct platform_driver mioa701_wm9713_driver = {
> + .probe = mioa701_wm9713_probe,
> + .remove = __devexit_p(mioa701_wm9713_remove),
> + .suspend = mioa701_wm9713_suspend,
> + .resume = mioa701_wm9713_resume,
> + .driver = {
> + .name = "mioa701-wm9713",
> + .owner = THIS_MODULE,
> + },
> +};
> +
> +static int __init mioa701_asoc_init(void)
> +{
> + return platform_driver_register(&mioa701_wm9713_driver);
> +}
> +
> +static void __exit mioa701_asoc_exit(void)
> +{
> + platform_driver_unregister(&mioa701_wm9713_driver);
> +}
> +
> +module_init(mioa701_asoc_init);
> +module_exit(mioa701_asoc_exit);
> +
> +/* Module information */
> +MODULE_AUTHOR("Robert Jarzmik (rjarzmik at free.fr)");
> +MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
> +MODULE_LICENSE("GPL");
Thanks
Liam
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