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): */
22 enum {
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): */
29 enum {
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_MORE 0x00000008
74 #define TIFM_FIFO_INT_SETALL 0x0000ffff
75 #define TIFM_FIFO_INTMASK 0x00000005
76
77 #define TIFM_DMA_RESET 0x00000002
78 #define TIFM_DMA_TX 0x00008000
79 #define TIFM_DMA_EN 0x00000001
80 #define TIFM_DMA_TSIZE 0x0000007f
81
82 #define TIFM_TYPE_XD 1
83 #define TIFM_TYPE_MS 2
84 #define TIFM_TYPE_SD 3
85
86 struct tifm_device_id {
87 unsigned char type;
88 };
89
90 struct tifm_driver;
91 struct tifm_dev {
92 char __iomem *addr;
93 spinlock_t lock;
94 unsigned char type;
95 unsigned int socket_id;
96
97 void (*card_event)(struct tifm_dev *sock);
98 void (*data_event)(struct tifm_dev *sock);
99
100 struct device dev;
101 };
102
103 struct tifm_driver {
104 struct tifm_device_id *id_table;
105 int (*probe)(struct tifm_dev *dev);
106 void (*remove)(struct tifm_dev *dev);
107 int (*suspend)(struct tifm_dev *dev,
108 pm_message_t state);
109 int (*resume)(struct tifm_dev *dev);
110
111 struct device_driver driver;
112 };
113
114 struct tifm_adapter {
115 char __iomem *addr;
116 spinlock_t lock;
117 unsigned int irq_status;
118 unsigned int socket_change_set;
119 unsigned int id;
120 unsigned int num_sockets;
121 struct completion *finish_me;
122
123 struct work_struct media_switcher;
124 struct device dev;
125
126 void (*eject)(struct tifm_adapter *fm,
127 struct tifm_dev *sock);
128 int (*has_ms_pif)(struct tifm_adapter *fm,
129 struct tifm_dev *sock);
130
131 struct tifm_dev *sockets[0];
132 };
133
134 struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
135 struct device *dev);
136 int tifm_add_adapter(struct tifm_adapter *fm);
137 void tifm_remove_adapter(struct tifm_adapter *fm);
138 void tifm_free_adapter(struct tifm_adapter *fm);
139
140 void tifm_free_device(struct device *dev);
141 struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
142 unsigned char type);
143
144 int tifm_register_driver(struct tifm_driver *drv);
145 void tifm_unregister_driver(struct tifm_driver *drv);
146 void tifm_eject(struct tifm_dev *sock);
147 int tifm_has_ms_pif(struct tifm_dev *sock);
148 int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
149 int direction);
150 void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
151 int direction);
152 void tifm_queue_work(struct work_struct *work);
153
tifm_get_drvdata(struct tifm_dev * dev)154 static inline void *tifm_get_drvdata(struct tifm_dev *dev)
155 {
156 return dev_get_drvdata(&dev->dev);
157 }
158
tifm_set_drvdata(struct tifm_dev * dev,void * data)159 static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
160 {
161 dev_set_drvdata(&dev->dev, data);
162 }
163
164 #endif
165