Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / pxa / palm27x.c

diff --git a/kernel/sound/soc/pxa/palm27x.c b/kernel/sound/soc/pxa/palm27x.c
new file mode 100644 (file)
index 0000000..c20bbc0
--- /dev/null
+++ b/kernel/sound/soc/pxa/palm27x.c
@@ -0,0 +1,170 @@
+/*
+ * 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 <linux/platform_data/asoc-palm27x.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 */
+       {"MIC1", NULL, "Ext. Microphone"},
+};
+
+static struct snd_soc_card palm27x_asoc;
+
+static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
+{
+       int err;
+
+       /* Jack detection API stuff */
+       err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
+                                   SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
+                                   ARRAY_SIZE(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",
+       .owner = THIS_MODULE,
+       .dai_link = palm27x_dai,
+       .num_links = ARRAY_SIZE(palm27x_dai),
+       .dapm_widgets = palm27x_dapm_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
+       .dapm_routes = audio_map,
+       .num_dapm_routes = ARRAY_SIZE(audio_map),
+       .fully_routed = true,
+};
+
+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_asoc.dev = &pdev->dev;
+
+       ret = snd_soc_register_card(&palm27x_asoc);
+       if (ret)
+               dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+                       ret);
+       return ret;
+}
+
+static int palm27x_asoc_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_card(&palm27x_asoc);
+       return 0;
+}
+
+static struct platform_driver palm27x_wm9712_driver = {
+       .probe          = palm27x_asoc_probe,
+       .remove         = palm27x_asoc_remove,
+       .driver         = {
+               .name           = "palm27x-asoc",
+               .pm     = &snd_soc_pm_ops,
+       },
+};
+
+module_platform_driver(palm27x_wm9712_driver);
+
+/* Module information */
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
+MODULE_LICENSE("GPL");