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authorThomas Kleffel <tk@maintech.de>2008-06-30 22:40:24 +0100
committerPierre Ossman <drzeus@drzeus.cx>2008-07-15 14:14:46 +0200
commitbe518018c6b9224c02284fb243207ef741c31ec6 (patch)
tree6fc450ca96ff05dc8904f015000be03a5a2ff2ac /drivers/mmc/host/s3cmci.h
parent8f1934ce784bd8f2eaf06f190526500f7f3f9c74 (diff)
MMC: S3C24XX MMC/SD driver.
This is the latest S3C MMC/SD driver by Thomas Kleffel with cleanups as suggested by AKPM done by Ben Dooks. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Kleffel <tk@maintech.de> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/host/s3cmci.h')
-rw-r--r--drivers/mmc/host/s3cmci.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/mmc/host/s3cmci.h b/drivers/mmc/host/s3cmci.h
new file mode 100644
index 00000000000..90b8af7d8a4
--- /dev/null
+++ b/drivers/mmc/host/s3cmci.h
@@ -0,0 +1,69 @@
+/*
+ * linux/drivers/mmc/s3cmci.h - Samsung S3C MCI driver
+ *
+ * Copyright (C) 2004-2006 Thomas Kleffel, All Rights Reserved.
+ *
+ * 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.
+ */
+
+/* FIXME: DMA Resource management ?! */
+#define S3CMCI_DMA 0
+
+enum s3cmci_waitfor {
+ COMPLETION_NONE,
+ COMPLETION_FINALIZE,
+ COMPLETION_CMDSENT,
+ COMPLETION_RSPFIN,
+ COMPLETION_XFERFINISH,
+ COMPLETION_XFERFINISH_RSPFIN,
+};
+
+struct s3cmci_host {
+ struct platform_device *pdev;
+ struct mmc_host *mmc;
+ struct resource *mem;
+ struct clk *clk;
+ void __iomem *base;
+ int irq;
+ int irq_cd;
+ int dma;
+
+ unsigned long clk_rate;
+ unsigned long clk_div;
+ unsigned long real_rate;
+ u8 prescaler;
+
+ int is2440;
+ unsigned sdiimsk;
+ unsigned sdidata;
+ int dodma;
+ int dmatogo;
+
+ struct mmc_request *mrq;
+ int cmd_is_stop;
+
+ spinlock_t complete_lock;
+ enum s3cmci_waitfor complete_what;
+
+ int dma_complete;
+
+ u32 pio_sgptr;
+ u32 pio_words;
+ u32 pio_count;
+ u32 *pio_ptr;
+#define XFER_NONE 0
+#define XFER_READ 1
+#define XFER_WRITE 2
+ u32 pio_active;
+
+ int bus_width;
+
+ char dbgmsg_cmd[301];
+ char dbgmsg_dat[301];
+ char *status;
+
+ unsigned int ccnt, dcnt;
+ struct tasklet_struct pio_tasklet;
+};