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tifm.h
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1 /*
2  * tifm.h - TI FlashMedia driver
3  *
4  * Copyright (C) 2006 Alex Dubov <[email protected]>
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 
154 static inline void *tifm_get_drvdata(struct tifm_dev *dev)
155 {
156  return dev_get_drvdata(&dev->dev);
157 }
158 
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
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