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5cab1634e4
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://github.com/KSPP/linux/issues/21 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
161 lines
4.7 KiB
C
161 lines
4.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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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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#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/delay.h>
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#include <linux/pci.h>
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#include <linux/workqueue.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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};
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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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};
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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_CTRL_POWER_MASK 0x00000007
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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
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#define TIFM_FIFO_READY 0x00000001
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#define TIFM_FIFO_MORE 0x00000008
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#define TIFM_FIFO_INT_SETALL 0x0000ffff
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#define TIFM_FIFO_INTMASK 0x00000005
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#define TIFM_DMA_RESET 0x00000002
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#define TIFM_DMA_TX 0x00008000
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#define TIFM_DMA_EN 0x00000001
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#define TIFM_DMA_TSIZE 0x0000007f
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#define TIFM_TYPE_XD 1
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#define TIFM_TYPE_MS 2
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#define TIFM_TYPE_SD 3
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struct tifm_device_id {
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unsigned char type;
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};
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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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unsigned char type;
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unsigned int socket_id;
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void (*card_event)(struct tifm_dev *sock);
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void (*data_event)(struct tifm_dev *sock);
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struct device dev;
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};
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struct tifm_driver {
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struct tifm_device_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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int (*suspend)(struct tifm_dev *dev,
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pm_message_t state);
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int (*resume)(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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spinlock_t lock;
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unsigned int irq_status;
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unsigned int socket_change_set;
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unsigned int id;
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unsigned int num_sockets;
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struct completion *finish_me;
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struct work_struct media_switcher;
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struct device dev;
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void (*eject)(struct tifm_adapter *fm,
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struct tifm_dev *sock);
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int (*has_ms_pif)(struct tifm_adapter *fm,
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struct tifm_dev *sock);
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struct tifm_dev *sockets[];
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};
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struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
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struct device *dev);
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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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void tifm_free_adapter(struct tifm_adapter *fm);
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void tifm_free_device(struct device *dev);
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struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
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unsigned char type);
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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_has_ms_pif(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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void tifm_queue_work(struct work_struct *work);
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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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#endif
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