1/*
2 *  tifm.h - TI FlashMedia driver
3 *
4 *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 */
11
12#ifndef _TIFM_H
13#define _TIFM_H
14
15#include <linux/spinlock.h>
16#include <linux/interrupt.h>
17#include <linux/delay.h>
18#include <linux/pci.h>
19#include <linux/workqueue.h>
20
21/* Host registers (relative to pci base address): */
22enum {
23	FM_SET_INTERRUPT_ENABLE   = 0x008,
24	FM_CLEAR_INTERRUPT_ENABLE = 0x00c,
25	FM_INTERRUPT_STATUS       = 0x014
26};
27
28/* Socket registers (relative to socket base address): */
29enum {
30	SOCK_CONTROL                   = 0x004,
31	SOCK_PRESENT_STATE             = 0x008,
32	SOCK_DMA_ADDRESS               = 0x00c,
33	SOCK_DMA_CONTROL               = 0x010,
34	SOCK_DMA_FIFO_INT_ENABLE_SET   = 0x014,
35	SOCK_DMA_FIFO_INT_ENABLE_CLEAR = 0x018,
36	SOCK_DMA_FIFO_STATUS           = 0x020,
37	SOCK_FIFO_CONTROL              = 0x024,
38	SOCK_FIFO_PAGE_SIZE            = 0x028,
39	SOCK_MMCSD_COMMAND             = 0x104,
40	SOCK_MMCSD_ARG_LOW             = 0x108,
41	SOCK_MMCSD_ARG_HIGH            = 0x10c,
42	SOCK_MMCSD_CONFIG              = 0x110,
43	SOCK_MMCSD_STATUS              = 0x114,
44	SOCK_MMCSD_INT_ENABLE          = 0x118,
45	SOCK_MMCSD_COMMAND_TO          = 0x11c,
46	SOCK_MMCSD_DATA_TO             = 0x120,
47	SOCK_MMCSD_DATA                = 0x124,
48	SOCK_MMCSD_BLOCK_LEN           = 0x128,
49	SOCK_MMCSD_NUM_BLOCKS          = 0x12c,
50	SOCK_MMCSD_BUFFER_CONFIG       = 0x130,
51	SOCK_MMCSD_SPI_CONFIG          = 0x134,
52	SOCK_MMCSD_SDIO_MODE_CONFIG    = 0x138,
53	SOCK_MMCSD_RESPONSE            = 0x144,
54	SOCK_MMCSD_SDIO_SR             = 0x164,
55	SOCK_MMCSD_SYSTEM_CONTROL      = 0x168,
56	SOCK_MMCSD_SYSTEM_STATUS       = 0x16c,
57	SOCK_MS_COMMAND                = 0x184,
58	SOCK_MS_DATA                   = 0x188,
59	SOCK_MS_STATUS                 = 0x18c,
60	SOCK_MS_SYSTEM                 = 0x190,
61	SOCK_FIFO_ACCESS               = 0x200
62};
63
64#define TIFM_CTRL_LED             0x00000040
65#define TIFM_CTRL_FAST_CLK        0x00000100
66#define TIFM_CTRL_POWER_MASK      0x00000007
67
68#define TIFM_SOCK_STATE_OCCUPIED  0x00000008
69#define TIFM_SOCK_STATE_POWERED   0x00000080
70
71#define TIFM_FIFO_ENABLE          0x00000001
72#define TIFM_FIFO_READY           0x00000001
73#define TIFM_FIFO_INT_SETALL      0x0000ffff
74#define TIFM_FIFO_INTMASK         0x00000005
75
76#define TIFM_DMA_RESET            0x00000002
77#define TIFM_DMA_TX               0x00008000
78#define TIFM_DMA_EN               0x00000001
79#define TIFM_DMA_TSIZE            0x0000007f
80
81#define TIFM_TYPE_XD 1
82#define TIFM_TYPE_MS 2
83#define TIFM_TYPE_SD 3
84
85struct tifm_device_id {
86	unsigned char type;
87};
88
89struct tifm_driver;
90struct tifm_dev {
91	char __iomem  *addr;
92	spinlock_t    lock;
93	unsigned char type;
94	unsigned int  socket_id;
95
96	void          (*card_event)(struct tifm_dev *sock);
97	void          (*data_event)(struct tifm_dev *sock);
98
99	struct device dev;
100};
101
102struct tifm_driver {
103	struct tifm_device_id *id_table;
104	int                   (*probe)(struct tifm_dev *dev);
105	void                  (*remove)(struct tifm_dev *dev);
106	int                   (*suspend)(struct tifm_dev *dev,
107					 pm_message_t state);
108	int                   (*resume)(struct tifm_dev *dev);
109
110	struct device_driver  driver;
111};
112
113struct tifm_adapter {
114	char __iomem        *addr;
115	spinlock_t          lock;
116	unsigned int        irq_status;
117	unsigned int        socket_change_set;
118	unsigned int        id;
119	unsigned int        num_sockets;
120	struct completion   *finish_me;
121
122	struct work_struct  media_switcher;
123	struct class_device cdev;
124
125	void                (*eject)(struct tifm_adapter *fm,
126				     struct tifm_dev *sock);
127
128	struct tifm_dev     *sockets[0];
129};
130
131struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
132					struct device *dev);
133int tifm_add_adapter(struct tifm_adapter *fm);
134void tifm_remove_adapter(struct tifm_adapter *fm);
135void tifm_free_adapter(struct tifm_adapter *fm);
136
137void tifm_free_device(struct device *dev);
138struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
139				   unsigned char type);
140
141int tifm_register_driver(struct tifm_driver *drv);
142void tifm_unregister_driver(struct tifm_driver *drv);
143void tifm_eject(struct tifm_dev *sock);
144int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
145		int direction);
146void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
147		   int direction);
148void tifm_queue_work(struct work_struct *work);
149
150static inline void *tifm_get_drvdata(struct tifm_dev *dev)
151{
152	return dev_get_drvdata(&dev->dev);
153}
154
155static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
156{
157	dev_set_drvdata(&dev->dev, data);
158}
159
160#endif
161