/* * 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 <linux/interrupt.h> #include <linux/irq.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <asm/mach-types.h> #include <mach/audio.h> #include <mach/palmasoc.h> #include "../codecs/wm9712.h" #include "pxa2xx-pcm.h" #include "pxa2xx-ac97.h" static int palm27x_jack_func = 1; static int palm27x_spk_func = 1; static int palm27x_ep_gpio = -1; static void palm27x_ext_control(struct snd_soc_codec *codec) { if (!palm27x_spk_func) snd_soc_dapm_enable_pin(codec, "Speaker"); else snd_soc_dapm_disable_pin(codec, "Speaker"); if (!palm27x_jack_func) snd_soc_dapm_enable_pin(codec, "Headphone Jack"); else snd_soc_dapm_disable_pin(codec, "Headphone Jack"); snd_soc_dapm_sync(codec); } static int palm27x_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->socdev->codec; /* check the jack status at stream startup */ palm27x_ext_control(codec); return 0; } static struct snd_soc_ops palm27x_ops = { .startup = palm27x_startup, }; static irqreturn_t palm27x_interrupt(int irq, void *v) { palm27x_spk_func = gpio_get_value(palm27x_ep_gpio); palm27x_jack_func = !palm27x_spk_func; return IRQ_HANDLED; } static int palm27x_get_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = palm27x_jack_func; return 0; } static int palm27x_set_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (palm27x_jack_func == ucontrol->value.integer.value[0]) return 0; palm27x_jack_func = ucontrol->value.integer.value[0]; palm27x_ext_control(codec); return 1; } static int palm27x_get_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = palm27x_spk_func; return 0; } static int palm27x_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (palm27x_spk_func == ucontrol->value.integer.value[0]) return 0; palm27x_spk_func = ucontrol->value.integer.value[0]; palm27x_ext_control(codec); return 1; } /* PalmTX machine dapm widgets */ static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_SPK("Speaker", 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 */ {"Speaker", NULL, "LOUT2"}, {"Speaker", NULL, "ROUT2"}, }; static const char *jack_function[] = {"Headphone", "Off"}; static const char *spk_function[] = {"On", "Off"}; static const struct soc_enum palm27x_enum[] = { SOC_ENUM_SINGLE_EXT(2, jack_function), SOC_ENUM_SINGLE_EXT(2, spk_function), }; static const struct snd_kcontrol_new palm27x_controls[] = { SOC_ENUM_EXT("Jack Function", palm27x_enum[0], palm27x_get_jack, palm27x_set_jack), SOC_ENUM_EXT("Speaker Function", palm27x_enum[1], palm27x_get_spk, palm27x_set_spk), }; static int palm27x_ac97_init(struct snd_soc_codec *codec) { int i, err; snd_soc_dapm_nc_pin(codec, "OUT3"); snd_soc_dapm_nc_pin(codec, "MONOOUT"); /* add palm27x specific controls */ for (i = 0; i < ARRAY_SIZE(palm27x_controls); i++) { err = snd_ctl_add(codec->card, snd_soc_cnew(&palm27x_controls[i], codec, NULL)); if (err < 0) return err; } /* add palm27x specific widgets */ snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets, ARRAY_SIZE(palm27x_dapm_widgets)); /* set up palm27x specific audio path audio_map */ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); snd_soc_dapm_sync(codec); return 0; } static struct snd_soc_dai_link palm27x_dai[] = { { .name = "AC97 HiFi", .stream_name = "AC97 HiFi", .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI], .init = palm27x_ac97_init, .ops = &palm27x_ops, }, { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX], .ops = &palm27x_ops, }, }; static struct snd_soc_card palm27x_asoc = { .name = "Palm/PXA27x", .platform = &pxa2xx_soc_platform, .dai_link = palm27x_dai, .num_links = ARRAY_SIZE(palm27x_dai), }; static struct snd_soc_device palm27x_snd_devdata = { .card = &palm27x_asoc, .codec_dev = &soc_codec_dev_wm9712, }; static struct platform_device *palm27x_snd_device; static int __init palm27x_asoc_init(void) { int ret; if (!(machine_is_palmtx() || machine_is_palmt5() || machine_is_palmld())) return -ENODEV; ret = gpio_request(palm27x_ep_gpio, "Headphone Jack"); if (ret) return ret; ret = gpio_direction_input(palm27x_ep_gpio); if (ret) goto err_alloc; if (request_irq(gpio_to_irq(palm27x_ep_gpio), palm27x_interrupt, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "Headphone jack", NULL)) goto err_alloc; palm27x_snd_device = platform_device_alloc("soc-audio", -1); if (!palm27x_snd_device) { ret = -ENOMEM; goto err_dev; } platform_set_drvdata(palm27x_snd_device, &palm27x_snd_devdata); palm27x_snd_devdata.dev = &palm27x_snd_device->dev; ret = platform_device_add(palm27x_snd_device); if (ret != 0) goto put_device; return 0; put_device: platform_device_put(palm27x_snd_device); err_dev: free_irq(gpio_to_irq(palm27x_ep_gpio), NULL); err_alloc: gpio_free(palm27x_ep_gpio); return ret; } static void __exit palm27x_asoc_exit(void) { free_irq(gpio_to_irq(palm27x_ep_gpio), NULL); gpio_free(palm27x_ep_gpio); platform_device_unregister(palm27x_snd_device); } void __init palm27x_asoc_set_pdata(struct palm27x_asoc_info *data) { palm27x_ep_gpio = data->jack_gpio; } 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");