[PATCH] mmc: driver for TI FlashMedia card reader - source

Driver for TI Flash Media card reader.  At present, only MMC/SD cards are
supported.

[akpm@osdl.org: cleanups, build fixes]
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Cc: Daniel Qarras <dqarras@yahoo.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 158 insertions, 0 deletions

diff --git a/include/linux/tifm.h b/include/linux/tifm.h
new file mode 100644
index 0000000..203dd5e
--- /dev/null
+++ b/include/linux/tifm.h
@@ -0,0 +1,158 @@
+/*
+ *  tifm.h - TI FlashMedia driver
+ *
+ *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
+ *
+ * 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 _TIFM_H
+#define _TIFM_H
+
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+
+/* Host registers (relative to pci base address): */
+enum {
+	FM_SET_INTERRUPT_ENABLE   = 0x008,
+	FM_CLEAR_INTERRUPT_ENABLE = 0x00c,
+	FM_INTERRUPT_STATUS       = 0x014 };
+
+/* Socket registers (relative to socket base address): */
+enum {
+	SOCK_CONTROL                   = 0x004,
+	SOCK_PRESENT_STATE             = 0x008,
+	SOCK_DMA_ADDRESS               = 0x00c,
+	SOCK_DMA_CONTROL               = 0x010,
+	SOCK_DMA_FIFO_INT_ENABLE_SET   = 0x014,
+	SOCK_DMA_FIFO_INT_ENABLE_CLEAR = 0x018,
+	SOCK_DMA_FIFO_STATUS           = 0x020,
+	SOCK_FIFO_CONTROL              = 0x024,
+	SOCK_FIFO_PAGE_SIZE            = 0x028,
+	SOCK_MMCSD_COMMAND             = 0x104,
+	SOCK_MMCSD_ARG_LOW             = 0x108,
+	SOCK_MMCSD_ARG_HIGH            = 0x10c,
+	SOCK_MMCSD_CONFIG              = 0x110,
+	SOCK_MMCSD_STATUS              = 0x114,
+	SOCK_MMCSD_INT_ENABLE          = 0x118,
+	SOCK_MMCSD_COMMAND_TO          = 0x11c,
+	SOCK_MMCSD_DATA_TO             = 0x120,
+	SOCK_MMCSD_DATA                = 0x124,
+	SOCK_MMCSD_BLOCK_LEN           = 0x128,
+	SOCK_MMCSD_NUM_BLOCKS          = 0x12c,
+	SOCK_MMCSD_BUFFER_CONFIG       = 0x130,
+	SOCK_MMCSD_SPI_CONFIG          = 0x134,
+	SOCK_MMCSD_SDIO_MODE_CONFIG    = 0x138,
+	SOCK_MMCSD_RESPONSE            = 0x144,
+	SOCK_MMCSD_SDIO_SR             = 0x164,
+	SOCK_MMCSD_SYSTEM_CONTROL      = 0x168,
+	SOCK_MMCSD_SYSTEM_STATUS       = 0x16c,
+	SOCK_MS_COMMAND                = 0x184,
+	SOCK_MS_DATA                   = 0x188,
+	SOCK_MS_STATUS                 = 0x18c,
+	SOCK_MS_SYSTEM                 = 0x190,
+	SOCK_FIFO_ACCESS               = 0x200 };
+
+
+#define TIFM_IRQ_ENABLE           0x80000000
+#define TIFM_IRQ_SOCKMASK         0x00000001
+#define TIFM_IRQ_CARDMASK         0x00000100
+#define TIFM_IRQ_FIFOMASK         0x00010000
+#define TIFM_IRQ_SETALL           0xffffffff
+#define TIFM_IRQ_SETALLSOCK       0x0000000f
+
+#define TIFM_CTRL_LED             0x00000040
+#define TIFM_CTRL_FAST_CLK        0x00000100
+
+#define TIFM_SOCK_STATE_OCCUPIED  0x00000008
+#define TIFM_SOCK_STATE_POWERED   0x00000080
+
+#define TIFM_FIFO_ENABLE          0x00000001 /* Meaning of this constant is unverified */
+#define TIFM_FIFO_INT_SETALL      0x0000ffff
+#define TIFM_FIFO_INTMASK         0x00000005 /* Meaning of this constant is unverified */
+
+#define TIFM_DMA_RESET            0x00000002 /* Meaning of this constant is unverified */
+#define TIFM_DMA_TX               0x00008000 /* Meaning of this constant is unverified */
+#define TIFM_DMA_EN               0x00000001 /* Meaning of this constant is unverified */
+
+typedef enum {FM_NULL = 0, FM_XD = 0x01, FM_MS = 0x02, FM_SD = 0x03} tifm_media_id;
+
+struct tifm_driver;
+struct tifm_dev {
+	char __iomem            *addr;
+	spinlock_t              lock;
+	tifm_media_id           media_id;
+	char                    wq_name[KOBJ_NAME_LEN];
+	struct workqueue_struct *wq;
+
+	unsigned int            (*signal_irq)(struct tifm_dev *sock,
+					      unsigned int sock_irq_status);
+
+	struct tifm_driver      *drv;
+	struct device           dev;
+};
+
+struct tifm_driver {
+	tifm_media_id        *id_table;
+	int                  (*probe)(struct tifm_dev *dev);
+	void                 (*remove)(struct tifm_dev *dev);
+
+	struct device_driver driver;
+};
+
+struct tifm_adapter {
+	char __iomem            *addr;
+	unsigned int            irq_status;
+	unsigned int            insert_mask;
+	unsigned int            remove_mask;
+	spinlock_t              lock;
+	unsigned int            id;
+	unsigned int            max_sockets;
+	char                    wq_name[KOBJ_NAME_LEN];
+	unsigned int            inhibit_new_cards;
+	struct workqueue_struct *wq;
+	struct work_struct      media_inserter;
+	struct work_struct      media_remover;
+	struct tifm_dev         **sockets;
+	struct class_device     cdev;
+	struct device           *dev;
+
+	void                    (*eject)(struct tifm_adapter *fm, struct tifm_dev *sock);
+};
+
+struct tifm_adapter *tifm_alloc_adapter(void);
+void tifm_free_device(struct device *dev);
+void tifm_free_adapter(struct tifm_adapter *fm);
+int tifm_add_adapter(struct tifm_adapter *fm);
+void tifm_remove_adapter(struct tifm_adapter *fm);
+struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id);
+int tifm_register_driver(struct tifm_driver *drv);
+void tifm_unregister_driver(struct tifm_driver *drv);
+void tifm_eject(struct tifm_dev *sock);
+int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
+		int direction);
+void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
+		   int direction);
+
+
+static inline void *tifm_get_drvdata(struct tifm_dev *dev)
+{
+        return dev_get_drvdata(&dev->dev);
+}
+
+static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
+{
+	dev_set_drvdata(&dev->dev, data);
+}
+
+struct tifm_device_id {
+	tifm_media_id media_id;
+};
+
+#endif