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Diffstat (limited to 'drivers/mmc/core/core.h')
-rw-r--r--drivers/mmc/core/core.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
new file mode 100644
index 00000000000..177264d090a
--- /dev/null
+++ b/drivers/mmc/core/core.h
@@ -0,0 +1,70 @@
+/*
+ * linux/drivers/mmc/core/core.h
+ *
+ * Copyright (C) 2003 Russell King, All Rights Reserved.
+ * 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _MMC_CORE_CORE_H
+#define _MMC_CORE_CORE_H
+
+#include <linux/delay.h>
+
+#define MMC_CMD_RETRIES 3
+
+struct mmc_bus_ops {
+ void (*remove)(struct mmc_host *);
+ void (*detect)(struct mmc_host *);
+ void (*suspend)(struct mmc_host *);
+ void (*resume)(struct mmc_host *);
+};
+
+void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
+void mmc_detach_bus(struct mmc_host *host);
+
+void __mmc_release_bus(struct mmc_host *host);
+
+static inline void mmc_bus_get(struct mmc_host *host)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&host->lock, flags);
+ host->bus_refs++;
+ spin_unlock_irqrestore(&host->lock, flags);
+}
+
+static inline void mmc_bus_put(struct mmc_host *host)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&host->lock, flags);
+ host->bus_refs--;
+ if ((host->bus_refs == 0) && host->bus_ops)
+ __mmc_release_bus(host);
+ spin_unlock_irqrestore(&host->lock, flags);
+}
+
+void mmc_set_chip_select(struct mmc_host *host, int mode);
+void mmc_set_clock(struct mmc_host *host, unsigned int hz);
+void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
+void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
+u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
+void mmc_set_timing(struct mmc_host *host, unsigned int timing);
+
+struct mmc_card *mmc_alloc_card(struct mmc_host *host);
+
+static inline void mmc_delay(unsigned int ms)
+{
+ if (ms < 1000 / HZ) {
+ cond_resched();
+ mdelay(ms);
+ } else {
+ msleep(ms);
+ }
+}
+
+#endif
+