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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /sound/soc/jz4740/qi_lb60.c
Initial import
Diffstat (limited to 'sound/soc/jz4740/qi_lb60.c')
-rw-r--r--sound/soc/jz4740/qi_lb60.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/sound/soc/jz4740/qi_lb60.c b/sound/soc/jz4740/qi_lb60.c
new file mode 100644
index 000000000..53586999f
--- /dev/null
+++ b/sound/soc/jz4740/qi_lb60.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * 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.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <linux/gpio/consumer.h>
+
+struct qi_lb60 {
+ struct gpio_desc *snd_gpio;
+ struct gpio_desc *amp_gpio;
+};
+
+static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
+ struct snd_kcontrol *ctrl, int event)
+{
+ struct qi_lb60 *qi_lb60 = snd_soc_card_get_drvdata(widget->dapm->card);
+ int on = !SND_SOC_DAPM_EVENT_OFF(event);
+
+ gpiod_set_value_cansleep(qi_lb60->snd_gpio, on);
+ gpiod_set_value_cansleep(qi_lb60->amp_gpio, on);
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
+ SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
+ SND_SOC_DAPM_MIC("Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route qi_lb60_routes[] = {
+ {"Mic", NULL, "MIC"},
+ {"Speaker", NULL, "LOUT"},
+ {"Speaker", NULL, "ROUT"},
+};
+
+static struct snd_soc_dai_link qi_lb60_dai = {
+ .name = "jz4740",
+ .stream_name = "jz4740",
+ .cpu_dai_name = "jz4740-i2s",
+ .platform_name = "jz4740-i2s",
+ .codec_dai_name = "jz4740-hifi",
+ .codec_name = "jz4740-codec",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
+};
+
+static struct snd_soc_card qi_lb60_card = {
+ .name = "QI LB60",
+ .owner = THIS_MODULE,
+ .dai_link = &qi_lb60_dai,
+ .num_links = 1,
+
+ .dapm_widgets = qi_lb60_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(qi_lb60_widgets),
+ .dapm_routes = qi_lb60_routes,
+ .num_dapm_routes = ARRAY_SIZE(qi_lb60_routes),
+ .fully_routed = true,
+};
+
+static int qi_lb60_probe(struct platform_device *pdev)
+{
+ struct qi_lb60 *qi_lb60;
+ struct snd_soc_card *card = &qi_lb60_card;
+
+ qi_lb60 = devm_kzalloc(&pdev->dev, sizeof(*qi_lb60), GFP_KERNEL);
+ if (!qi_lb60)
+ return -ENOMEM;
+
+ qi_lb60->snd_gpio = devm_gpiod_get(&pdev->dev, "snd", GPIOD_OUT_LOW);
+ if (IS_ERR(qi_lb60->snd_gpio))
+ return PTR_ERR(qi_lb60->snd_gpio);
+
+ qi_lb60->amp_gpio = devm_gpiod_get(&pdev->dev, "amp", GPIOD_OUT_LOW);
+ if (IS_ERR(qi_lb60->amp_gpio))
+ return PTR_ERR(qi_lb60->amp_gpio);
+
+ card->dev = &pdev->dev;
+
+ snd_soc_card_set_drvdata(card, qi_lb60);
+
+ return devm_snd_soc_register_card(&pdev->dev, card);
+}
+
+static struct platform_driver qi_lb60_driver = {
+ .driver = {
+ .name = "qi-lb60-audio",
+ },
+ .probe = qi_lb60_probe,
+};
+
+module_platform_driver(qi_lb60_driver);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:qi-lb60-audio");