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@@ -0,0 +1,84 @@
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+/* rtc-generic: RTC driver using the generic RTC abstraction
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+ *
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+ * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/time.h>
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+#include <linux/platform_device.h>
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+#include <linux/rtc.h>
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+
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+#include <asm/rtc.h>
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+
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+static int generic_get_time(struct device *dev, struct rtc_time *tm)
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+{
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+ unsigned int ret = get_rtc_time(tm);
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+
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+ if (ret & RTC_BATT_BAD)
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+ return -EOPNOTSUPP;
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+
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+ return rtc_valid_tm(tm);
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+}
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+
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+static int generic_set_time(struct device *dev, struct rtc_time *tm)
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+{
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+ if (set_rtc_time(tm) < 0)
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+ return -EOPNOTSUPP;
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+
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+ return 0;
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+}
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+
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+static const struct rtc_class_ops generic_rtc_ops = {
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+ .read_time = generic_get_time,
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+ .set_time = generic_set_time,
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+};
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+
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+static int __init generic_rtc_probe(struct platform_device *dev)
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+{
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+ struct rtc_device *rtc;
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+
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+ rtc = rtc_device_register("rtc-generic", &dev->dev, &generic_rtc_ops,
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+ THIS_MODULE);
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+ if (IS_ERR(rtc))
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+ return PTR_ERR(rtc);
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+
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+ platform_set_drvdata(dev, rtc);
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+
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+ return 0;
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+}
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+
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+static int __exit generic_rtc_remove(struct platform_device *dev)
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+{
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+ struct rtc_device *rtc = platform_get_drvdata(dev);
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+
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+ rtc_device_unregister(rtc);
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+
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+ return 0;
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+}
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+
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+static struct platform_driver generic_rtc_driver = {
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+ .driver = {
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+ .name = "rtc-generic",
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+ .owner = THIS_MODULE,
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+ },
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+ .remove = __exit_p(generic_rtc_remove),
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+};
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+
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+static int __init generic_rtc_init(void)
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+{
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+ return platform_driver_probe(&generic_rtc_driver, generic_rtc_probe);
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+}
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+
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+static void __exit generic_rtc_fini(void)
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+{
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+ platform_driver_unregister(&generic_rtc_driver);
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+}
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+
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+module_init(generic_rtc_init);
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+module_exit(generic_rtc_fini);
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+
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+MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
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+MODULE_LICENSE("GPL");
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+MODULE_DESCRIPTION("Generic RTC driver");
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+MODULE_ALIAS("platform:rtc-generic");
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