diff options
Diffstat (limited to 'sound/soc/pxa/palm27x.c')
| -rw-r--r-- | sound/soc/pxa/palm27x.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/sound/soc/pxa/palm27x.c b/sound/soc/pxa/palm27x.c new file mode 100644 index 00000000..504e4004 --- /dev/null +++ b/sound/soc/pxa/palm27x.c @@ -0,0 +1,224 @@ +/* + * linux/sound/soc/pxa/palm27x.c + * + * SoC Audio driver for Palm T|X, T5 and LifeDrive + * + * based on tosa.c + * + * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <linux/gpio.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/jack.h> + +#include <asm/mach-types.h> +#include <mach/audio.h> +#include <mach/palmasoc.h> + +#include "../codecs/wm9712.h" +#include "pxa2xx-ac97.h" + +static struct snd_soc_jack hs_jack; + +/* Headphones jack detection DAPM pins */ +static struct snd_soc_jack_pin hs_jack_pins[] = { + { + .pin = "Headphone Jack", + .mask = SND_JACK_HEADPHONE, + }, +}; + +/* Headphones jack detection gpios */ +static struct snd_soc_jack_gpio hs_jack_gpios[] = { + [0] = { + /* gpio is set on per-platform basis */ + .name = "hp-gpio", + .report = SND_JACK_HEADPHONE, + .debounce_time = 200, + }, +}; + +/* Palm27x machine dapm widgets */ +static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_SPK("Ext. Speaker", NULL), + SND_SOC_DAPM_MIC("Ext. Microphone", NULL), +}; + +/* PalmTX audio map */ +static const struct snd_soc_dapm_route audio_map[] = { + /* headphone connected to HPOUTL, HPOUTR */ + {"Headphone Jack", NULL, "HPOUTL"}, + {"Headphone Jack", NULL, "HPOUTR"}, + + /* ext speaker connected to ROUT2, LOUT2 */ + {"Ext. Speaker", NULL, "LOUT2"}, + {"Ext. Speaker", NULL, "ROUT2"}, + + /* mic connected to MIC1 */ + {"Ext. Microphone", NULL, "MIC1"}, +}; + +static struct snd_soc_card palm27x_asoc; + +static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dapm_context *dapm = &codec->dapm; + int err; + + /* add palm27x specific widgets */ + err = snd_soc_dapm_new_controls(dapm, palm27x_dapm_widgets, + ARRAY_SIZE(palm27x_dapm_widgets)); + if (err) + return err; + + /* set up palm27x specific audio path audio_map */ + err = snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); + if (err) + return err; + + /* connected pins */ + if (machine_is_palmld()) + snd_soc_dapm_enable_pin(dapm, "MIC1"); + snd_soc_dapm_enable_pin(dapm, "HPOUTL"); + snd_soc_dapm_enable_pin(dapm, "HPOUTR"); + snd_soc_dapm_enable_pin(dapm, "LOUT2"); + snd_soc_dapm_enable_pin(dapm, "ROUT2"); + + /* not connected pins */ + snd_soc_dapm_nc_pin(dapm, "OUT3"); + snd_soc_dapm_nc_pin(dapm, "MONOOUT"); + snd_soc_dapm_nc_pin(dapm, "LINEINL"); + snd_soc_dapm_nc_pin(dapm, "LINEINR"); + snd_soc_dapm_nc_pin(dapm, "PCBEEP"); + snd_soc_dapm_nc_pin(dapm, "PHONE"); + snd_soc_dapm_nc_pin(dapm, "MIC2"); + + err = snd_soc_dapm_sync(dapm); + if (err) + return err; + + /* Jack detection API stuff */ + err = snd_soc_jack_new(codec, "Headphone Jack", + SND_JACK_HEADPHONE, &hs_jack); + if (err) + return err; + + err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins), + hs_jack_pins); + if (err) + return err; + + err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios), + hs_jack_gpios); + + return err; +} + +static struct snd_soc_dai_link palm27x_dai[] = { +{ + .name = "AC97 HiFi", + .stream_name = "AC97 HiFi", + .cpu_dai_name = "pxa2xx-ac97", + .codec_dai_name = "wm9712-hifi", + .codec_name = "wm9712-codec", + .platform_name = "pxa-pcm-audio", + .init = palm27x_ac97_init, +}, +{ + .name = "AC97 Aux", + .stream_name = "AC97 Aux", + .cpu_dai_name = "pxa2xx-ac97-aux", + .codec_dai_name = "wm9712-aux", + .codec_name = "wm9712-codec", + .platform_name = "pxa-pcm-audio", +}, +}; + +static struct snd_soc_card palm27x_asoc = { + .name = "Palm/PXA27x", + .dai_link = palm27x_dai, + .num_links = ARRAY_SIZE(palm27x_dai), +}; + +static struct platform_device *palm27x_snd_device; + +static int palm27x_asoc_probe(struct platform_device *pdev) +{ + int ret; + + if (!(machine_is_palmtx() || machine_is_palmt5() || + machine_is_palmld() || machine_is_palmte2())) + return -ENODEV; + + if (!pdev->dev.platform_data) { + dev_err(&pdev->dev, "please supply platform_data\n"); + return -ENODEV; + } + + hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *) + (pdev->dev.platform_data))->jack_gpio; + + palm27x_snd_device = platform_device_alloc("soc-audio", -1); + if (!palm27x_snd_device) + return -ENOMEM; + + platform_set_drvdata(palm27x_snd_device, &palm27x_asoc); + ret = platform_device_add(palm27x_snd_device); + + if (ret != 0) + goto put_device; + + return 0; + +put_device: + platform_device_put(palm27x_snd_device); + + return ret; +} + +static int __devexit palm27x_asoc_remove(struct platform_device *pdev) +{ + platform_device_unregister(palm27x_snd_device); + return 0; +} + +static struct platform_driver palm27x_wm9712_driver = { + .probe = palm27x_asoc_probe, + .remove = __devexit_p(palm27x_asoc_remove), + .driver = { + .name = "palm27x-asoc", + .owner = THIS_MODULE, + }, +}; + +static int __init palm27x_asoc_init(void) +{ + return platform_driver_register(&palm27x_wm9712_driver); +} + +static void __exit palm27x_asoc_exit(void) +{ + platform_driver_unregister(&palm27x_wm9712_driver); +} + +module_init(palm27x_asoc_init); +module_exit(palm27x_asoc_exit); + +/* Module information */ +MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); +MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive"); +MODULE_LICENSE("GPL"); |