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[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>
This commit is contained in:
Alex Dubov
Linus Torvalds
parent
856fe98f16
commit
4020f2d7f0
5 changed files with 1805 additions and 0 deletions
158
include/linux/tifm.h
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158
include/linux/tifm.h
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/*
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* tifm.h - TI FlashMedia driver
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*
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* Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#ifndef _TIFM_H
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#define _TIFM_H
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#include <linux/spinlock.h>
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#include <linux/interrupt.h>
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#include <linux/wait.h>
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#include <linux/delay.h>
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#include <linux/pci.h>
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/* Host registers (relative to pci base address): */
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enum {
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FM_SET_INTERRUPT_ENABLE = 0x008,
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FM_CLEAR_INTERRUPT_ENABLE = 0x00c,
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FM_INTERRUPT_STATUS = 0x014 };
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/* Socket registers (relative to socket base address): */
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enum {
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SOCK_CONTROL = 0x004,
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SOCK_PRESENT_STATE = 0x008,
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SOCK_DMA_ADDRESS = 0x00c,
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SOCK_DMA_CONTROL = 0x010,
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SOCK_DMA_FIFO_INT_ENABLE_SET = 0x014,
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SOCK_DMA_FIFO_INT_ENABLE_CLEAR = 0x018,
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SOCK_DMA_FIFO_STATUS = 0x020,
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SOCK_FIFO_CONTROL = 0x024,
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SOCK_FIFO_PAGE_SIZE = 0x028,
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SOCK_MMCSD_COMMAND = 0x104,
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SOCK_MMCSD_ARG_LOW = 0x108,
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SOCK_MMCSD_ARG_HIGH = 0x10c,
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SOCK_MMCSD_CONFIG = 0x110,
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SOCK_MMCSD_STATUS = 0x114,
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SOCK_MMCSD_INT_ENABLE = 0x118,
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SOCK_MMCSD_COMMAND_TO = 0x11c,
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SOCK_MMCSD_DATA_TO = 0x120,
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SOCK_MMCSD_DATA = 0x124,
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SOCK_MMCSD_BLOCK_LEN = 0x128,
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SOCK_MMCSD_NUM_BLOCKS = 0x12c,
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SOCK_MMCSD_BUFFER_CONFIG = 0x130,
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SOCK_MMCSD_SPI_CONFIG = 0x134,
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SOCK_MMCSD_SDIO_MODE_CONFIG = 0x138,
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SOCK_MMCSD_RESPONSE = 0x144,
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SOCK_MMCSD_SDIO_SR = 0x164,
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SOCK_MMCSD_SYSTEM_CONTROL = 0x168,
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SOCK_MMCSD_SYSTEM_STATUS = 0x16c,
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SOCK_MS_COMMAND = 0x184,
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SOCK_MS_DATA = 0x188,
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SOCK_MS_STATUS = 0x18c,
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SOCK_MS_SYSTEM = 0x190,
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SOCK_FIFO_ACCESS = 0x200 };
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#define TIFM_IRQ_ENABLE 0x80000000
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#define TIFM_IRQ_SOCKMASK 0x00000001
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#define TIFM_IRQ_CARDMASK 0x00000100
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#define TIFM_IRQ_FIFOMASK 0x00010000
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#define TIFM_IRQ_SETALL 0xffffffff
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#define TIFM_IRQ_SETALLSOCK 0x0000000f
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#define TIFM_CTRL_LED 0x00000040
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#define TIFM_CTRL_FAST_CLK 0x00000100
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#define TIFM_SOCK_STATE_OCCUPIED 0x00000008
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#define TIFM_SOCK_STATE_POWERED 0x00000080
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#define TIFM_FIFO_ENABLE 0x00000001 /* Meaning of this constant is unverified */
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#define TIFM_FIFO_INT_SETALL 0x0000ffff
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#define TIFM_FIFO_INTMASK 0x00000005 /* Meaning of this constant is unverified */
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#define TIFM_DMA_RESET 0x00000002 /* Meaning of this constant is unverified */
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#define TIFM_DMA_TX 0x00008000 /* Meaning of this constant is unverified */
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#define TIFM_DMA_EN 0x00000001 /* Meaning of this constant is unverified */
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typedef enum {FM_NULL = 0, FM_XD = 0x01, FM_MS = 0x02, FM_SD = 0x03} tifm_media_id;
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struct tifm_driver;
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struct tifm_dev {
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char __iomem *addr;
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spinlock_t lock;
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tifm_media_id media_id;
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char wq_name[KOBJ_NAME_LEN];
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struct workqueue_struct *wq;
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unsigned int (*signal_irq)(struct tifm_dev *sock,
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unsigned int sock_irq_status);
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struct tifm_driver *drv;
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struct device dev;
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};
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struct tifm_driver {
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tifm_media_id *id_table;
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int (*probe)(struct tifm_dev *dev);
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void (*remove)(struct tifm_dev *dev);
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struct device_driver driver;
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};
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struct tifm_adapter {
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char __iomem *addr;
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unsigned int irq_status;
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unsigned int insert_mask;
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unsigned int remove_mask;
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spinlock_t lock;
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unsigned int id;
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unsigned int max_sockets;
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char wq_name[KOBJ_NAME_LEN];
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unsigned int inhibit_new_cards;
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struct workqueue_struct *wq;
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struct work_struct media_inserter;
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struct work_struct media_remover;
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struct tifm_dev **sockets;
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struct class_device cdev;
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struct device *dev;
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void (*eject)(struct tifm_adapter *fm, struct tifm_dev *sock);
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};
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struct tifm_adapter *tifm_alloc_adapter(void);
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void tifm_free_device(struct device *dev);
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void tifm_free_adapter(struct tifm_adapter *fm);
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int tifm_add_adapter(struct tifm_adapter *fm);
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void tifm_remove_adapter(struct tifm_adapter *fm);
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struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id);
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int tifm_register_driver(struct tifm_driver *drv);
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void tifm_unregister_driver(struct tifm_driver *drv);
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void tifm_eject(struct tifm_dev *sock);
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int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
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int direction);
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void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
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int direction);
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static inline void *tifm_get_drvdata(struct tifm_dev *dev)
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{
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return dev_get_drvdata(&dev->dev);
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}
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static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
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{
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dev_set_drvdata(&dev->dev, data);
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}
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struct tifm_device_id {
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tifm_media_id media_id;
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};
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#endif
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