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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/scatterlist.h> | |
21 | ||
22 | /* Host registers (relative to pci base address): */ | |
23 | enum { | |
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): */ | |
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_IRQ_ENABLE 0x80000000 | |
65 | #define TIFM_IRQ_SOCKMASK 0x00000001 | |
66 | #define TIFM_IRQ_CARDMASK 0x00000100 | |
67 | #define TIFM_IRQ_FIFOMASK 0x00010000 | |
68 | #define TIFM_IRQ_SETALL 0xffffffff | |
69 | #define TIFM_IRQ_SETALLSOCK 0x0000000f | |
70 | ||
71 | #define TIFM_CTRL_LED 0x00000040 | |
72 | #define TIFM_CTRL_FAST_CLK 0x00000100 | |
73 | ||
74 | #define TIFM_SOCK_STATE_OCCUPIED 0x00000008 | |
75 | #define TIFM_SOCK_STATE_POWERED 0x00000080 | |
76 | ||
77 | #define TIFM_FIFO_ENABLE 0x00000001 /* Meaning of this constant is unverified */ | |
78 | #define TIFM_FIFO_INT_SETALL 0x0000ffff | |
79 | #define TIFM_FIFO_INTMASK 0x00000005 /* Meaning of this constant is unverified */ | |
80 | ||
81 | #define TIFM_DMA_RESET 0x00000002 /* Meaning of this constant is unverified */ | |
82 | #define TIFM_DMA_TX 0x00008000 /* Meaning of this constant is unverified */ | |
83 | #define TIFM_DMA_EN 0x00000001 /* Meaning of this constant is unverified */ | |
84 | ||
85 | typedef enum {FM_NULL = 0, FM_XD = 0x01, FM_MS = 0x02, FM_SD = 0x03} tifm_media_id; | |
86 | ||
87 | struct tifm_driver; | |
88 | struct tifm_dev { | |
89 | char __iomem *addr; | |
90 | spinlock_t lock; | |
91 | tifm_media_id media_id; | |
92 | char wq_name[KOBJ_NAME_LEN]; | |
93 | struct workqueue_struct *wq; | |
94 | ||
95 | unsigned int (*signal_irq)(struct tifm_dev *sock, | |
96 | unsigned int sock_irq_status); | |
97 | ||
98 | struct tifm_driver *drv; | |
99 | struct device dev; | |
100 | }; | |
101 | ||
102 | struct tifm_driver { | |
103 | tifm_media_id *id_table; | |
104 | int (*probe)(struct tifm_dev *dev); | |
105 | void (*remove)(struct tifm_dev *dev); | |
106 | ||
107 | struct device_driver driver; | |
108 | }; | |
109 | ||
110 | struct tifm_adapter { | |
111 | char __iomem *addr; | |
112 | unsigned int irq_status; | |
113 | unsigned int insert_mask; | |
114 | unsigned int remove_mask; | |
115 | spinlock_t lock; | |
116 | unsigned int id; | |
117 | unsigned int max_sockets; | |
118 | char wq_name[KOBJ_NAME_LEN]; | |
119 | unsigned int inhibit_new_cards; | |
120 | struct workqueue_struct *wq; | |
121 | struct work_struct media_inserter; | |
122 | struct work_struct media_remover; | |
123 | struct tifm_dev **sockets; | |
124 | struct class_device cdev; | |
125 | struct device *dev; | |
126 | ||
127 | void (*eject)(struct tifm_adapter *fm, struct tifm_dev *sock); | |
128 | }; | |
129 | ||
130 | struct tifm_adapter *tifm_alloc_adapter(void); | |
131 | void tifm_free_device(struct device *dev); | |
132 | void tifm_free_adapter(struct tifm_adapter *fm); | |
133 | int tifm_add_adapter(struct tifm_adapter *fm); | |
134 | void tifm_remove_adapter(struct tifm_adapter *fm); | |
135 | struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id); | |
136 | int tifm_register_driver(struct tifm_driver *drv); | |
137 | void tifm_unregister_driver(struct tifm_driver *drv); | |
138 | void tifm_eject(struct tifm_dev *sock); | |
139 | int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents, | |
140 | int direction); | |
141 | void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents, | |
142 | int direction); | |
143 | ||
144 | ||
145 | static inline void *tifm_get_drvdata(struct tifm_dev *dev) | |
146 | { | |
147 | return dev_get_drvdata(&dev->dev); | |
148 | } | |
149 | ||
150 | static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data) | |
151 | { | |
152 | dev_set_drvdata(&dev->dev, data); | |
153 | } | |
154 | ||
155 | struct tifm_device_id { | |
156 | tifm_media_id media_id; | |
157 | }; | |
158 | ||
159 | #endif |