summaryrefslogtreecommitdiffstats
path: root/include/linux/mmc/card.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mmc/card.h')
-rw-r--r--include/linux/mmc/card.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
new file mode 100644
index 0000000..aefedf0
--- /dev/null
+++ b/include/linux/mmc/card.h
@@ -0,0 +1,92 @@
+/*
+ * linux/include/linux/mmc/card.h
+ *
+ * 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.
+ *
+ * Card driver specific definitions.
+ */
+#ifndef LINUX_MMC_CARD_H
+#define LINUX_MMC_CARD_H
+
+#include <linux/mmc/mmc.h>
+
+struct mmc_cid {
+ unsigned int manfid;
+ char prod_name[8];
+ unsigned int serial;
+ unsigned short oemid;
+ unsigned short year;
+ unsigned char hwrev;
+ unsigned char fwrev;
+ unsigned char month;
+};
+
+struct mmc_csd {
+ unsigned char mmca_vsn;
+ unsigned short cmdclass;
+ unsigned short tacc_clks;
+ unsigned int tacc_ns;
+ unsigned int max_dtr;
+ unsigned int read_blkbits;
+ unsigned int capacity;
+};
+
+struct mmc_host;
+
+/*
+ * MMC device
+ */
+struct mmc_card {
+ struct list_head node; /* node in hosts devices list */
+ struct mmc_host *host; /* the host this device belongs to */
+ struct device dev; /* the device */
+ unsigned int rca; /* relative card address of device */
+ unsigned int state; /* (our) card state */
+#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
+#define MMC_STATE_DEAD (1<<1) /* device no longer in stack */
+#define MMC_STATE_BAD (1<<2) /* unrecognised device */
+ u32 raw_cid[4]; /* raw card CID */
+ u32 raw_csd[4]; /* raw card CSD */
+ struct mmc_cid cid; /* card identification */
+ struct mmc_csd csd; /* card specific */
+};
+
+#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
+#define mmc_card_dead(c) ((c)->state & MMC_STATE_DEAD)
+#define mmc_card_bad(c) ((c)->state & MMC_STATE_BAD)
+
+#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
+#define mmc_card_set_dead(c) ((c)->state |= MMC_STATE_DEAD)
+#define mmc_card_set_bad(c) ((c)->state |= MMC_STATE_BAD)
+
+#define mmc_card_name(c) ((c)->cid.prod_name)
+#define mmc_card_id(c) ((c)->dev.bus_id)
+
+#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
+#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
+#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
+
+/*
+ * MMC device driver (e.g., Flash card, I/O card...)
+ */
+struct mmc_driver {
+ struct device_driver drv;
+ int (*probe)(struct mmc_card *);
+ void (*remove)(struct mmc_card *);
+ int (*suspend)(struct mmc_card *, pm_message_t);
+ int (*resume)(struct mmc_card *);
+};
+
+extern int mmc_register_driver(struct mmc_driver *);
+extern void mmc_unregister_driver(struct mmc_driver *);
+
+static inline int mmc_card_claim_host(struct mmc_card *card)
+{
+ return __mmc_claim_host(card->host, card);
+}
+
+#define mmc_card_release_host(c) mmc_release_host((c)->host)
+
+#endif
OpenPOWER on IntegriCloud