Added missing tegra files.HEADmaster

1 files changed, 118 insertions, 0 deletions

diff --git a/drivers/misc/max1749.c b/drivers/misc/max1749.c
new file mode 100644
index 00000000000..e9896428900
--- /dev/null
+++ b/drivers/misc/max1749.c
@@ -0,0 +1,118 @@
+/*
+ * drivers/misc/max1749.c
+ *
+ * Driver for MAX1749, vibrator motor driver.
+ *
+ * Copyright (c) 2011, NVIDIA Corporation.
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/regulator/consumer.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/hrtimer.h>
+#include <linux/delay.h>
+
+#include "../staging/android/timed_output.h"
+
+static struct regulator *regulator;
+static int timeout;
+
+static void vibrator_start(void)
+{
+        regulator_enable(regulator);
+}
+
+static void vibrator_stop(void)
+{
+        int ret;
+
+        ret = regulator_is_enabled(regulator);
+        if (ret > 0)
+                regulator_disable(regulator);
+}
+
+/*
+ * Timeout value can be changed from sysfs entry
+ * created by timed_output_dev.
+ * echo 100 > /sys/class/timed_output/vibrator/enable
+ */
+static void vibrator_enable(struct timed_output_dev *dev, int value)
+{
+        timeout = value;
+        if (!regulator)
+                return;
+
+        if (value) {
+                vibrator_start();
+                msleep(value);
+                vibrator_stop();
+        } else {
+                vibrator_stop();
+        }
+}
+
+/*
+ * Timeout value can be read from sysfs entry
+ * created by timed_output_dev.
+ * cat /sys/class/timed_output/vibrator/enable
+ */
+static int vibrator_get_time(struct timed_output_dev *dev)
+{
+        return timeout;
+}
+
+static struct timed_output_dev vibrator_dev = {
+        .name           = "vibrator",
+        .get_time       = vibrator_get_time,
+        .enable         = vibrator_enable,
+};
+
+static int __init vibrator_init(void)
+{
+        int status;
+
+        regulator = regulator_get(NULL, "vdd_vbrtr");
+        if (IS_ERR_OR_NULL(regulator)) {
+                pr_err("vibrator_init:Couldn't get regulator vdd_vbrtr\n");
+                regulator = NULL;
+                return PTR_ERR(regulator);
+        }
+
+        status = timed_output_dev_register(&vibrator_dev);
+
+        if (status) {
+                regulator_put(regulator);
+                regulator = NULL;
+        }
+        return status;
+}
+
+static void __exit vibrator_exit(void)
+{
+        if (regulator) {
+                timed_output_dev_unregister(&vibrator_dev);
+                regulator_put(regulator);
+                regulator = NULL;
+        }
+}
+
+MODULE_DESCRIPTION("timed output vibrator device");
+MODULE_AUTHOR("GPL");
+
+module_init(vibrator_init);
+module_exit(vibrator_exit);