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@@ -0,0 +1,85 @@
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+/*
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+ * Support for rfkill through the OLPC XO-1 laptop embedded controller
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+ *
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+ * Copyright (C) 2010 One Laptop per Child
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/platform_device.h>
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+#include <linux/rfkill.h>
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+
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+#include <asm/olpc.h>
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+
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+static int rfkill_set_block(void *data, bool blocked)
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+{
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+ unsigned char cmd;
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+ if (blocked)
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+ cmd = EC_WLAN_ENTER_RESET;
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+ else
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+ cmd = EC_WLAN_LEAVE_RESET;
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+
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+ return olpc_ec_cmd(cmd, NULL, 0, NULL, 0);
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+}
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+
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+static const struct rfkill_ops rfkill_ops = {
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+ .set_block = rfkill_set_block,
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+};
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+
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+static int __devinit xo1_rfkill_probe(struct platform_device *pdev)
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+{
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+ struct rfkill *rfk;
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+ int r;
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+
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+ rfk = rfkill_alloc(pdev->name, &pdev->dev, RFKILL_TYPE_WLAN,
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+ &rfkill_ops, NULL);
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+ if (!rfk)
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+ return -ENOMEM;
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+
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+ r = rfkill_register(rfk);
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+ if (r) {
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+ rfkill_destroy(rfk);
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+ return r;
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+ }
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+
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+ platform_set_drvdata(pdev, rfk);
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+ return 0;
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+}
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+
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+static int __devexit xo1_rfkill_remove(struct platform_device *pdev)
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+{
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+ struct rfkill *rfk = platform_get_drvdata(pdev);
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+ rfkill_unregister(rfk);
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+ rfkill_destroy(rfk);
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+ return 0;
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+}
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+
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+static struct platform_driver xo1_rfkill_driver = {
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+ .driver = {
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+ .name = "xo1-rfkill",
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+ .owner = THIS_MODULE,
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+ },
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+ .probe = xo1_rfkill_probe,
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+ .remove = __devexit_p(xo1_rfkill_remove),
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+};
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+
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+static int __init xo1_rfkill_init(void)
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+{
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+ return platform_driver_register(&xo1_rfkill_driver);
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+}
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+
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+static void __exit xo1_rfkill_exit(void)
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+{
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+ platform_driver_unregister(&xo1_rfkill_driver);
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+}
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+
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+MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>");
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+MODULE_LICENSE("GPL");
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+MODULE_ALIAS("platform:xo1-rfkill");
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+
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+module_init(xo1_rfkill_init);
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+module_exit(xo1_rfkill_exit);
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