mmc: basic SDIO device model
Add the sdio bus type and basic device handling.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
new file mode 100644
index 0000000..50c78db
--- /dev/null
+++ b/include/linux/mmc/sdio_func.h
@@ -0,0 +1,35 @@
+/*
+ * include/linux/mmc/sdio_func.h
+ *
+ * Copyright 2007 Pierre Ossman
+ *
+ * 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.
+ */
+
+#ifndef MMC_SDIO_FUNC_H
+#define MMC_SDIO_FUNC_H
+
+struct mmc_card;
+
+/*
+ * SDIO function devices
+ */
+struct sdio_func {
+ struct mmc_card *card; /* the card this device belongs to */
+ struct device dev; /* the device */
+ unsigned int num; /* function number */
+ unsigned int state; /* function state */
+#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
+};
+
+#define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT)
+
+#define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
+
+#define sdio_func_id(f) ((f)->dev.bus_id)
+
+#endif
+