mmc: basic SDIO device model

Add the sdio bus type and basic device handling.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 35 insertions, 0 deletions

diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
new file mode 100644
index 000000000000..50c78db420e6
--- /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
+