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linux
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/wait.h>
18#include <linux/delay.h>
19#include <linux/pci.h>
20#include <linux/kthread.h>
21
22/* Host registers (relative to pci base address): */
23enum {
24 FM_SET_INTERRUPT_ENABLE = 0x008,
25 FM_CLEAR_INTERRUPT_ENABLE = 0x00c,
26 FM_INTERRUPT_STATUS = 0x014 };
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_IRQ_ENABLE 0x80000000
65#define TIFM_IRQ_SOCKMASK(x) (x)
66#define TIFM_IRQ_CARDMASK(x) ((x) << 8)
67#define TIFM_IRQ_FIFOMASK(x) ((x) << 16)
68#define TIFM_IRQ_SETALL 0xffffffff
69
70#define TIFM_CTRL_LED 0x00000040
71#define TIFM_CTRL_FAST_CLK 0x00000100
72
73#define TIFM_SOCK_STATE_OCCUPIED 0x00000008
74#define TIFM_SOCK_STATE_POWERED 0x00000080
75
76#define TIFM_FIFO_ENABLE 0x00000001 /* Meaning of this constant is unverified */
77#define TIFM_FIFO_INT_SETALL 0x0000ffff
78#define TIFM_FIFO_INTMASK 0x00000005 /* Meaning of this constant is unverified */
79
80#define TIFM_DMA_RESET 0x00000002 /* Meaning of this constant is unverified */
81#define TIFM_DMA_TX 0x00008000 /* Meaning of this constant is unverified */
82#define TIFM_DMA_EN 0x00000001 /* Meaning of this constant is unverified */
83
84typedef enum {FM_NULL = 0, FM_XD = 0x01, FM_MS = 0x02, FM_SD = 0x03} tifm_media_id;
85
86struct tifm_driver;
87struct tifm_dev {
88 char __iomem *addr;
89 spinlock_t lock;
90 tifm_media_id media_id;
91 unsigned int socket_id;
92
93 void (*signal_irq)(struct tifm_dev *sock,
94 unsigned int sock_irq_status);
95
96 struct tifm_driver *drv;
97 struct device dev;
98};
99
100struct tifm_driver {
101 tifm_media_id *id_table;
102 int (*probe)(struct tifm_dev *dev);
103 void (*remove)(struct tifm_dev *dev);
104 int (*suspend)(struct tifm_dev *dev,
105 pm_message_t state);
106 int (*resume)(struct tifm_dev *dev);
107
108 struct device_driver driver;
109};
110
111struct tifm_adapter {
112 char __iomem *addr;
113 spinlock_t lock;
114 unsigned int irq_status;
115 unsigned int socket_change_set;
116 wait_queue_head_t change_set_notify;
117 unsigned int id;
118 unsigned int num_sockets;
119 struct tifm_dev **sockets;
120 struct task_struct *media_switcher;
121 struct class_device cdev;
122 struct device *dev;
123
124 void (*eject)(struct tifm_adapter *fm, struct tifm_dev *sock);
125};
126
127struct tifm_adapter *tifm_alloc_adapter(void);
128void tifm_free_device(struct device *dev);
129void tifm_free_adapter(struct tifm_adapter *fm);
130int tifm_add_adapter(struct tifm_adapter *fm, int (*mediathreadfn)(void *data));
131void tifm_remove_adapter(struct tifm_adapter *fm);
132struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm);
133int tifm_register_driver(struct tifm_driver *drv);
134void tifm_unregister_driver(struct tifm_driver *drv);
135void tifm_eject(struct tifm_dev *sock);
136int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
137 int direction);
138void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
139 int direction);
140
141
142static inline void *tifm_get_drvdata(struct tifm_dev *dev)
143{
144 return dev_get_drvdata(&dev->dev);
145}
146
147static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
148{
149 dev_set_drvdata(&dev->dev, data);
150}
151
152struct tifm_device_id {
153 tifm_media_id media_id;
154};
155
156#endif